+++ /dev/null
-BSD License
-
-For rocksdb software
-
-Copyright (c) 2013, Facebook, Inc.
-All rights reserved.
----------------------------------------------------------------------
-
-Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
- * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
- * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ /dev/null
-# Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-# Inherit some settings from environment variables, if available
-INSTALL_PATH ?= $(CURDIR)
-
-#-----------------------------------------------
-# Uncomment exactly one of the lines labelled (A), (B), and (C) below
-# to switch between compilation modes.
-
-# OPT ?= -DNDEBUG # (A) Production use (optimized mode)
-OPT += -O2 -fno-omit-frame-pointer -momit-leaf-frame-pointer
-#-----------------------------------------------
-
-# detect what platform we're building on
-$(shell (export ROCKSDB_ROOT=$(CURDIR); $(CURDIR)/build_tools/build_detect_platform $(CURDIR)/build_config.mk))
-# this file is generated by the previous line to set build flags and sources
-include build_config.mk
-
-WARNING_FLAGS = -Wall -Werror
-CFLAGS += -g $(WARNING_FLAGS) -I. -I./include $(PLATFORM_CCFLAGS) $(OPT)
-CXXFLAGS += -g $(WARNING_FLAGS) -I. -I./include $(PLATFORM_CXXFLAGS) $(OPT) -std=gnu++0x -Woverloaded-virtual
-
-LDFLAGS += $(PLATFORM_LDFLAGS)
-
-LIBOBJECTS = $(SOURCES:.cc=.o)
-LIBOBJECTS += $(SOURCESCPP:.cpp=.o)
-MEMENVOBJECTS = $(MEMENV_SOURCES:.cc=.o)
-
-TESTUTIL = ./util/testutil.o
-TESTHARNESS = ./util/testharness.o $(TESTUTIL)
-VALGRIND_ERROR = 2
-VALGRIND_DIR = build_tools/VALGRIND_LOGS
-VALGRIND_VER := $(join $(VALGRIND_VER),valgrind)
-VALGRIND_OPTS = --error-exitcode=$(VALGRIND_ERROR) --leak-check=full
-
-TESTS = \
- table_stats_collector_test \
- arena_test \
- auto_roll_logger_test \
- block_test \
- bloom_test \
- c_test \
- cache_test \
- coding_test \
- corruption_test \
- crc32c_test \
- db_test \
- dbformat_test \
- env_test \
- blob_store_test \
- filelock_test \
- filename_test \
- filter_block_test \
- histogram_test \
- log_test \
- manual_compaction_test \
- memenv_test \
- merge_test \
- redis_test \
- reduce_levels_test \
- simple_table_db_test \
- skiplist_test \
- stringappend_test \
- table_test \
- ttl_test \
- version_edit_test \
- version_set_test \
- write_batch_test\
- deletefile_test
-
-TOOLS = \
- sst_dump \
- db_stress \
- ldb \
- db_repl_stress \
- blob_store_bench
-
-PROGRAMS = db_bench signal_test $(TESTS) $(TOOLS)
-BENCHMARKS = db_bench_sqlite3 db_bench_tree_db table_reader_bench
-
-# The library name is configurable since we are maintaining libraries of both
-# debug/release mode.
-LIBNAME = librocksdb
-LIBRARY = ${LIBNAME}.a
-MEMENVLIBRARY = libmemenv.a
-
-default: all
-
-#-----------------------------------------------
-# Create platform independent shared libraries.
-#-----------------------------------------------
-ifneq ($(PLATFORM_SHARED_EXT),)
-
-ifneq ($(PLATFORM_SHARED_VERSIONED),true)
-SHARED1 = ${LIBNAME}.$(PLATFORM_SHARED_EXT)
-SHARED2 = $(SHARED1)
-SHARED3 = $(SHARED1)
-SHARED = $(SHARED1)
-else
-# Update db.h if you change these.
-SHARED_MAJOR = 2
-SHARED_MINOR = 0
-SHARED1 = ${LIBNAME}.$(PLATFORM_SHARED_EXT)
-SHARED2 = $(SHARED1).$(SHARED_MAJOR)
-SHARED3 = $(SHARED1).$(SHARED_MAJOR).$(SHARED_MINOR)
-SHARED = $(SHARED1) $(SHARED2) $(SHARED3)
-$(SHARED1): $(SHARED3)
- ln -fs $(SHARED3) $(SHARED1)
-$(SHARED2): $(SHARED3)
- ln -fs $(SHARED3) $(SHARED2)
-endif
-
-$(SHARED3):
- $(CXX) $(LDFLAGS) $(PLATFORM_SHARED_LDFLAGS)$(SHARED2) $(CXXFLAGS) $(COVERAGEFLAGS) $(PLATFORM_SHARED_CFLAGS) $(SOURCES) -o $(SHARED3)
-
-endif # PLATFORM_SHARED_EXT
-
-all: $(LIBRARY) $(PROGRAMS)
-
-.PHONY: blackbox_crash_test check clean coverage crash_test ldb_tests \
- release tags valgrind_check whitebox_crash_test
-
-release:
- $(MAKE) clean
- OPT=-DNDEBUG $(MAKE) -j32
-
-coverage:
- $(MAKE) clean
- COVERAGEFLAGS="-fprofile-arcs -ftest-coverage" LDFLAGS+="-lgcov" $(MAKE) all check
- (cd coverage; ./coverage_test.sh)
- # Delete intermediate files
- find . -type f -regex ".*\.\(\(gcda\)\|\(gcno\)\)" -exec rm {} \;
-
-check: all $(PROGRAMS) $(TESTS) $(TOOLS) ldb_tests
- for t in $(TESTS); do echo "***** Running $$t"; ./$$t || exit 1; done
-
-ldb_tests: all $(PROGRAMS) $(TOOLS)
- python tools/ldb_test.py
-
-crash_test: blackbox_crash_test whitebox_crash_test
-
-blackbox_crash_test: db_stress
- python -u tools/db_crashtest.py
-
-whitebox_crash_test: db_stress
- python -u tools/db_crashtest2.py
-
-valgrind_check: all $(PROGRAMS) $(TESTS)
- mkdir -p $(VALGRIND_DIR)
- echo TESTS THAT HAVE VALGRIND ERRORS > $(VALGRIND_DIR)/valgrind_failed_tests; \
- echo TIMES in seconds TAKEN BY TESTS ON VALGRIND > $(VALGRIND_DIR)/valgrind_tests_times; \
- for t in $(filter-out skiplist_test,$(TESTS)); do \
- stime=`date '+%s'`; \
- $(VALGRIND_VER) $(VALGRIND_OPTS) ./$$t; \
- if [ $$? -eq $(VALGRIND_ERROR) ] ; then \
- echo $$t >> $(VALGRIND_DIR)/valgrind_failed_tests; \
- fi; \
- etime=`date '+%s'`; \
- echo $$t $$((etime - stime)) >> $(VALGRIND_DIR)/valgrind_tests_times; \
- done
-
-clean:
- -rm -f $(PROGRAMS) $(BENCHMARKS) $(LIBRARY) $(SHARED) $(MEMENVLIBRARY) build_config.mk
- -rm -rf ios-x86/* ios-arm/*
- -find . -name "*.[od]" -exec rm {} \;
- -find . -type f -regex ".*\.\(\(gcda\)\|\(gcno\)\)" -exec rm {} \;
-tags:
- ctags * -R
- cscope -b `find . -name '*.cc'` `find . -name '*.h'`
-
-# ---------------------------------------------------------------------------
-# Unit tests and tools
-# ---------------------------------------------------------------------------
-$(LIBRARY): $(LIBOBJECTS)
- rm -f $@
- $(AR) -rs $@ $(LIBOBJECTS)
-
-db_bench: db/db_bench.o $(LIBOBJECTS) $(TESTUTIL)
- $(CXX) db/db_bench.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-db_stress: tools/db_stress.o $(LIBOBJECTS) $(TESTUTIL)
- $(CXX) tools/db_stress.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-db_repl_stress: tools/db_repl_stress.o $(LIBOBJECTS) $(TESTUTIL)
- $(CXX) tools/db_repl_stress.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-blob_store_bench: tools/blob_store_bench.o $(LIBOBJECTS) $(TESTUTIL)
- $(CXX) tools/blob_store_bench.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-db_bench_sqlite3: doc/bench/db_bench_sqlite3.o $(LIBOBJECTS) $(TESTUTIL)
- $(CXX) doc/bench/db_bench_sqlite3.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) -lsqlite3 $(COVERAGEFLAGS)
-
-db_bench_tree_db: doc/bench/db_bench_tree_db.o $(LIBOBJECTS) $(TESTUTIL)
- $(CXX) doc/bench/db_bench_tree_db.o $(LIBOBJECTS) $(TESTUTIL) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) -lkyotocabinet $(COVERAGEFLAGS)
-
-signal_test: util/signal_test.o $(LIBOBJECTS)
- $(CXX) util/signal_test.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-arena_test: util/arena_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/arena_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-table_stats_collector_test: db/table_stats_collector_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/table_stats_collector_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-bloom_test: util/bloom_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/bloom_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-c_test: db/c_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/c_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-cache_test: util/cache_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/cache_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-coding_test: util/coding_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/coding_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-blob_store_test: util/blob_store_test.o $(LIBOBJECTS) $(TESTHARNESS) $(TESTUTIL)
- $(CXX) util/blob_store_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o$@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-stringappend_test: utilities/merge_operators/string_append/stringappend_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) utilities/merge_operators/string_append/stringappend_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-redis_test: utilities/redis/redis_lists_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) utilities/redis/redis_lists_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-histogram_test: util/histogram_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/histogram_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o$@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-corruption_test: db/corruption_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/corruption_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-crc32c_test: util/crc32c_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/crc32c_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-db_test: db/db_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-simple_table_db_test: db/simple_table_db_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/simple_table_db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-table_reader_bench: table/table_reader_bench.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) table/table_reader_bench.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-perf_context_test: db/perf_context_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/perf_context_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS)
-
-prefix_test: db/prefix_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/prefix_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS)
-
-ttl_test: utilities/ttl/ttl_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) utilities/ttl/ttl_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-dbformat_test: db/dbformat_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/dbformat_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-env_test: util/env_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/env_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-filename_test: db/filename_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/filename_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-filter_block_test: table/filter_block_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) table/filter_block_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-log_test: db/log_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/log_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-table_test: table/table_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) table/table_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-block_test: table/block_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) table/block_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-skiplist_test: db/skiplist_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/skiplist_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-version_edit_test: db/version_edit_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/version_edit_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-version_set_test: db/version_set_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/version_set_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-reduce_levels_test: tools/reduce_levels_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) tools/reduce_levels_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-write_batch_test: db/write_batch_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/write_batch_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-merge_test: db/merge_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/merge_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-deletefile_test: db/deletefile_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) db/deletefile_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS)
-
-$(MEMENVLIBRARY) : $(MEMENVOBJECTS)
- rm -f $@
- $(AR) -rs $@ $(MEMENVOBJECTS)
-
-memenv_test : helpers/memenv/memenv_test.o $(MEMENVLIBRARY) $(LIBRARY) $(TESTHARNESS)
- $(CXX) helpers/memenv/memenv_test.o $(MEMENVLIBRARY) $(LIBRARY) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-manual_compaction_test: util/manual_compaction_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/manual_compaction_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-rocksdb_shell: tools/shell/ShellContext.o tools/shell/ShellState.o tools/shell/LeveldbShell.o tools/shell/DBClientProxy.o tools/shell/ShellContext.h tools/shell/ShellState.h tools/shell/DBClientProxy.h $(LIBOBJECTS)
- $(CXX) tools/shell/ShellContext.o tools/shell/ShellState.o tools/shell/LeveldbShell.o tools/shell/DBClientProxy.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-DBClientProxy_test: tools/shell/test/DBClientProxyTest.o tools/shell/DBClientProxy.o $(LIBRARY)
- $(CXX) tools/shell/test/DBClientProxyTest.o tools/shell/DBClientProxy.o $(LIBRARY) $(EXEC_LDFLAGS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-filelock_test: util/filelock_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/filelock_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-auto_roll_logger_test: util/auto_roll_logger_test.o $(LIBOBJECTS) $(TESTHARNESS)
- $(CXX) util/auto_roll_logger_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-sst_dump: tools/sst_dump.o $(LIBOBJECTS)
- $(CXX) tools/sst_dump.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-ldb: tools/ldb.o $(LIBOBJECTS)
- $(CXX) tools/ldb.o $(LIBOBJECTS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
-
-# ---------------------------------------------------------------------------
-# Platform-specific compilation
-# ---------------------------------------------------------------------------
-
-ifeq ($(PLATFORM), IOS)
-# For iOS, create universal object files to be used on both the simulator and
-# a device.
-PLATFORMSROOT=/Applications/Xcode.app/Contents/Developer/Platforms
-SIMULATORROOT=$(PLATFORMSROOT)/iPhoneSimulator.platform/Developer
-DEVICEROOT=$(PLATFORMSROOT)/iPhoneOS.platform/Developer
-IOSVERSION=$(shell defaults read $(PLATFORMSROOT)/iPhoneOS.platform/versionCFBundleShortVersionString)
-
-.cc.o:
- mkdir -p ios-x86/$(dir $@)
- $(SIMULATORROOT)/usr/bin/$(CXX) $(CXXFLAGS) -isysroot $(SIMULATORROOT)/SDKs/iPhoneSimulator$(IOSVERSION).sdk -arch i686 -c $< -o ios-x86/$@ $(COVERAGEFLAGS)
- mkdir -p ios-arm/$(dir $@)
- $(DEVICEROOT)/usr/bin/$(CXX) $(CXXFLAGS) -isysroot $(DEVICEROOT)/SDKs/iPhoneOS$(IOSVERSION).sdk -arch armv6 -arch armv7 -c $< -o ios-arm/$@ $(COVERAGEFLAGS)
- lipo ios-x86/$@ ios-arm/$@ -create -output $@
-
-.c.o:
- mkdir -p ios-x86/$(dir $@)
- $(SIMULATORROOT)/usr/bin/$(CC) $(CFLAGS) -isysroot $(SIMULATORROOT)/SDKs/iPhoneSimulator$(IOSVERSION).sdk -arch i686 -c $< -o ios-x86/$@
- mkdir -p ios-arm/$(dir $@)
- $(DEVICEROOT)/usr/bin/$(CC) $(CFLAGS) -isysroot $(DEVICEROOT)/SDKs/iPhoneOS$(IOSVERSION).sdk -arch armv6 -arch armv7 -c $< -o ios-arm/$@
- lipo ios-x86/$@ ios-arm/$@ -create -output $@
-
-else
-.cc.o:
- $(CXX) $(CXXFLAGS) -c $< -o $@ $(COVERAGEFLAGS)
-
-.c.o:
- $(CC) $(CFLAGS) -c $< -o $@
-endif
-
-# ---------------------------------------------------------------------------
-# Source files dependencies detection
-# ---------------------------------------------------------------------------
-
-# Add proper dependency support so changing a .h file forces a .cc file to
-# rebuild.
-
-# The .d file indicates .cc file's dependencies on .h files. We generate such
-# dependency by g++'s -MM option, whose output is a make dependency rule.
-# The sed command makes sure the "target" file in the generated .d file has
-# the correct path prefix.
-%.d: %.cc
- $(CXX) $(CXXFLAGS) $(PLATFORM_SHARED_CFLAGS) -MM $< -o $@
- @sed -i -e 's|.*:|$*.o:|' $@
-
-DEPFILES = $(filter-out util/build_version.d,$(SOURCES:.cc=.d))
-
-depend: $(DEPFILES)
-
-ifneq ($(MAKECMDGOALS),clean)
--include $(DEPFILES)
-endif
+++ /dev/null
-Additional Grant of Patent Rights
-
-“Software” means the rocksdb software distributed by Facebook, Inc.
-
-Facebook hereby grants you a perpetual, worldwide, royalty-free,
-non-exclusive, irrevocable (subject to the termination provision below)
-license under any rights in any patent claims owned by Facebook, to make,
-have made, use, sell, offer to sell, import, and otherwise transfer the
-Software. For avoidance of doubt, no license is granted under Facebook’s
-rights in any patent claims that are infringed by (i) modifications to the
-Software made by you or a third party, or (ii) the Software in combination
-with any software or other technology provided by you or a third party.
-
-The license granted hereunder will terminate, automatically and without
-notice, for anyone that makes any claim (including by filing any lawsuit,
-assertion or other action) alleging (a) direct, indirect, or contributory
-infringement or inducement to infringe any patent: (i) by Facebook or any
-of its subsidiaries or affiliates, whether or not such claim is related
-to the Software, (ii) by any party if such claim arises in whole or in
-part from any software, product or service of Facebook or any of its
-subsidiaries or affiliates, whether or not such claim is related to the
-Software, or (iii) by any party relating to the Software; or (b) that
-any right in any patent claim of Facebook is invalid or unenforceable.
+++ /dev/null
-rocksdb: A persistent key-value store for flash storage
-Authors: * The Facebook Database Engineering Team
- * Build on earlier work on leveldb by Sanjay Ghemawat
- (sanjay@google.com) and Jeff Dean (jeff@google.com)
-
-This code is a library that forms the core building block for a fast
-key value server, especially suited for storing data on flash drives.
-It has an Log-Stuctured-Merge-Database (LSM) design with flexible tradeoffs
-between Write-Amplification-Factor(WAF), Read-Amplification-Factor (RAF)
-and Space-Amplification-Factor(SAF). It has multi-threaded compactions,
-making it specially suitable for storing multiple terabytes of data in a
-single database.
-
-The core of this code has been derived from open-source leveldb.
-
-The code under this directory implements a system for maintaining a
-persistent key/value store.
-
-See doc/index.html for more explanation.
-See doc/impl.html for a brief overview of the implementation.
-
-The public interface is in include/*. Callers should not include or
-rely on the details of any other header files in this package. Those
-internal APIs may be changed without warning.
-
-Guide to header files:
-
-include/rocksdb/db.h
- Main interface to the DB: Start here
-
-include/rocksdb/options.h
- Control over the behavior of an entire database, and also
- control over the behavior of individual reads and writes.
-
-include/rocksdb/comparator.h
- Abstraction for user-specified comparison function. If you want
- just bytewise comparison of keys, you can use the default comparator,
- but clients can write their own comparator implementations if they
- want custom ordering (e.g. to handle different character
- encodings, etc.)
-
-include/rocksdb/iterator.h
- Interface for iterating over data. You can get an iterator
- from a DB object.
-
-include/rocksdb/write_batch.h
- Interface for atomically applying multiple updates to a database.
-
-include/rocksdb/slice.h
- A simple module for maintaining a pointer and a length into some
- other byte array.
-
-include/rocksdb/status.h
- Status is returned from many of the public interfaces and is used
- to report success and various kinds of errors.
-
-include/rocksdb/env.h
- Abstraction of the OS environment. A posix implementation of
- this interface is in util/env_posix.cc
-
-include/rocksdb/table_builder.h
- Lower-level modules that most clients probably won't use directly
-
-include/rocksdb/cache.h
- An API for the block cache.
-
-include/rocksdb/compaction_filter.h
- An API for a application filter invoked on every compaction.
-
-include/rocksdb/filter_policy.h
- An API for configuring a bloom filter.
-
-include/rocksdb/memtablerep.h
- An API for implementing a memtable.
-
-include/rocksdb/statistics.h
- An API to retrieve various database statistics.
-
-include/rocksdb/transaction_log.h
- An API to retrieve transaction logs from a database.
-
-
+++ /dev/null
-* Detailed instructions on how to compile using fbcode and jemalloc
-
-* Latest release is 2.5.fb
+++ /dev/null
-#!/bin/sh
-#
-# Detects OS we're compiling on and outputs a file specified by the first
-# argument, which in turn gets read while processing Makefile.
-#
-# The output will set the following variables:
-# CC C Compiler path
-# CXX C++ Compiler path
-# PLATFORM_LDFLAGS Linker flags
-# PLATFORM_SHARED_EXT Extension for shared libraries
-# PLATFORM_SHARED_LDFLAGS Flags for building shared library
-# PLATFORM_SHARED_CFLAGS Flags for compiling objects for shared library
-# PLATFORM_CCFLAGS C compiler flags
-# PLATFORM_CXXFLAGS C++ compiler flags. Will contain:
-# PLATFORM_SHARED_VERSIONED Set to 'true' if platform supports versioned
-# shared libraries, empty otherwise.
-#
-# The PLATFORM_CCFLAGS and PLATFORM_CXXFLAGS might include the following:
-#
-# -DLEVELDB_PLATFORM_POSIX if cstdatomic is present
-# -DLEVELDB_PLATFORM_NOATOMIC if it is not
-# -DSNAPPY if the Snappy library is present
-#
-
-OUTPUT=$1
-if test -z "$OUTPUT"; then
- echo "usage: $0 <output-filename>" >&2
- exit 1
-fi
-
-# Default to fbcode gcc on internal fb machines
-if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
- if [ -z "$USE_CLANG" ]; then
- source $PWD/build_tools/fbcode.gcc471.sh
- else
- source $PWD/build_tools/fbcode.clang31.sh
- fi
-fi
-
-# Delete existing output, if it exists
-rm -f $OUTPUT
-touch $OUTPUT
-
-if test -z "$CC"; then
- CC=cc
-fi
-
-if test -z "$CXX"; then
- CXX=g++
-fi
-
-# Detect OS
-if test -z "$TARGET_OS"; then
- TARGET_OS=`uname -s`
-fi
-
-COMMON_FLAGS="${CFLAGS}"
-CROSS_COMPILE=
-PLATFORM_CCFLAGS=
-PLATFORM_CXXFLAGS="${CXXFLAGS}"
-PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS"
-PLATFORM_SHARED_EXT="so"
-PLATFORM_SHARED_LDFLAGS="${EXEC_LDFLAGS_SHARED} -shared -Wl,-soname -Wl,"
-PLATFORM_SHARED_CFLAGS="-fPIC"
-PLATFORM_SHARED_VERSIONED=true
-
-# generic port files (working on all platform by #ifdef) go directly in /port
-GENERIC_PORT_FILES=`find $ROCKSDB_ROOT/port -name '*.cc' | tr "\n" " "`
-
-# On GCC, we pick libc's memcmp over GCC's memcmp via -fno-builtin-memcmp
-case "$TARGET_OS" in
- Darwin)
- PLATFORM=OS_MACOSX
- COMMON_FLAGS="$COMMON_FLAGS -DOS_MACOSX"
- PLATFORM_SHARED_EXT=dylib
- PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name "
- # PORT_FILES=port/darwin/darwin_specific.cc
- ;;
- Linux)
- PLATFORM=OS_LINUX
- COMMON_FLAGS="$COMMON_FLAGS -DOS_LINUX"
- if [ -z "$USE_CLANG" ]; then
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp"
- fi
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
- # PORT_FILES=port/linux/linux_specific.cc
- ;;
- SunOS)
- PLATFORM=OS_SOLARIS
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_SOLARIS"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
- # PORT_FILES=port/sunos/sunos_specific.cc
- ;;
- FreeBSD)
- PLATFORM=OS_FREEBSD
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_FREEBSD"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
- # PORT_FILES=port/freebsd/freebsd_specific.cc
- ;;
- NetBSD)
- PLATFORM=OS_NETBSD
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lgcc_s"
- # PORT_FILES=port/netbsd/netbsd_specific.cc
- ;;
- OpenBSD)
- PLATFORM=OS_OPENBSD
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_OPENBSD"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -pthread"
- # PORT_FILES=port/openbsd/openbsd_specific.cc
- ;;
- DragonFly)
- PLATFORM=OS_DRAGONFLYBSD
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_DRAGONFLYBSD"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
- # PORT_FILES=port/dragonfly/dragonfly_specific.cc
- ;;
- OS_ANDROID_CROSSCOMPILE)
- PLATFORM=OS_ANDROID
- COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS " # All pthread features are in the Android C library
- # PORT_FILES=port/android/android.cc
- CROSS_COMPILE=true
- ;;
- *)
- echo "Unknown platform!" >&2
- exit 1
-esac
-
-$PWD/build_tools/build_detect_version
-
-# We want to make a list of all cc files within util, db, table, and helpers
-# except for the test and benchmark files. By default, find will output a list
-# of all files matching either rule, so we need to append -print to make the
-# prune take effect.
-DIRS="util db table utilities"
-
-set -f # temporarily disable globbing so that our patterns arent expanded
-PRUNE_TEST="-name *test*.cc -prune"
-PRUNE_BENCH="-name *_bench.cc -prune"
-PORTABLE_FILES=`cd $ROCKSDB_ROOT; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cc' -print | sort | tr "\n" " "`
-PORTABLE_CPP=`cd $ROCKSDB_ROOT; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cpp' -print | sort | tr "\n" " "`
-set +f # re-enable globbing
-
-# The sources consist of the portable files, plus the platform-specific port
-# file.
-echo "SOURCES=$PORTABLE_FILES $GENERIC_PORT_FILES $PORT_FILES" >> $OUTPUT
-echo "SOURCESCPP=$PORTABLE_CPP" >> $OUTPUT
-echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> $OUTPUT
-
-if [ "$CROSS_COMPILE" = "true" ]; then
- # Cross-compiling; do not try any compilation tests.
- true
-else
- # If -std=c++0x works, use <cstdatomic>. Otherwise use port_posix.h.
- $CXX $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null <<EOF
- #include <cstdatomic>
- int main() {}
-EOF
- if [ "$?" = 0 ]; then
- COMMON_FLAGS="$COMMON_FLAGS -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT"
- PLATFORM_CXXFLAGS="-std=c++0x"
- else
- COMMON_FLAGS="$COMMON_FLAGS -DLEVELDB_PLATFORM_POSIX"
- fi
-
- # Test whether Snappy library is installed
- # http://code.google.com/p/snappy/
- $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
- #include <snappy.h>
- int main() {}
-EOF
- if [ "$?" = 0 ]; then
- COMMON_FLAGS="$COMMON_FLAGS -DSNAPPY"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS ${SNAPPY_LDFLAGS:-./snappy/libs/libsnappy.a}"
- fi
-
-
- # Test whether gflags library is installed
- # http://code.google.com/p/gflags/
- $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
- #include <gflags/gflags.h>
- int main() {}
-EOF
- if [ "$?" = 0 ]; then
- COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS"
- fi
-
- # Test whether zlib library is installed
- $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
- #include <zlib.h>
- int main() {}
-EOF
- if [ "$?" = 0 ]; then
- COMMON_FLAGS="$COMMON_FLAGS -DZLIB"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lz"
- fi
-
- # Test whether bzip library is installed
- $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
- #include <bzlib.h>
- int main() {}
-EOF
- if [ "$?" = 0 ]; then
- COMMON_FLAGS="$COMMON_FLAGS -DBZIP2"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lbz2"
- fi
-
- # Test whether tcmalloc is available
- $CXX $CFLAGS -x c++ - -o /dev/null -ltcmalloc 2>/dev/null <<EOF
- int main() {}
-EOF
- if [ "$?" = 0 ]; then
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc"
- fi
-fi
-
-# shall we use HDFS?
-
-if test "$USE_HDFS"; then
- if test -z "$JAVA_HOME"; then
- echo "JAVA_HOME has to be set for HDFS usage."
- exit 1
- fi
- HDFS_CCFLAGS="$HDFS_CCFLAGS -I$JAVA_HOME/include -I$JAVA_HOME/include/linux -DUSE_HDFS"
- HDFS_LDFLAGS="$HDFS_LDFLAGS -Wl,--no-whole-archive hdfs/libhdfs.a -L$JAVA_HOME/jre/lib/amd64"
- HDFS_LDFLAGS="$HDFS_LDFLAGS -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib"
- HDFS_LDFLAGS="$HDFS_LDFLAGS -ldl -lverify -ljava -ljvm"
- COMMON_FLAGS="$COMMON_FLAGS $HDFS_CCFLAGS"
- PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS $HDFS_LDFLAGS"
-fi
-
-# if Intel SSE instruction set is supported, set USE_SSE=" -msse -msse4.2 "
-COMMON_FLAGS="$COMMON_FLAGS $USE_SSE"
-
-PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"
-PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"
-
-VALGRIND_VER="$VALGRIND_VER"
-
-echo "CC=$CC" >> $OUTPUT
-echo "CXX=$CXX" >> $OUTPUT
-echo "PLATFORM=$PLATFORM" >> $OUTPUT
-echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> $OUTPUT
-echo "VALGRIND_VER=$VALGRIND_VER" >> $OUTPUT
-echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> $OUTPUT
-echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> $OUTPUT
-echo "PLATFORM_SHARED_CFLAGS=$PLATFORM_SHARED_CFLAGS" >> $OUTPUT
-echo "PLATFORM_SHARED_EXT=$PLATFORM_SHARED_EXT" >> $OUTPUT
-echo "PLATFORM_SHARED_LDFLAGS=$PLATFORM_SHARED_LDFLAGS" >> $OUTPUT
-echo "PLATFORM_SHARED_VERSIONED=$PLATFORM_SHARED_VERSIONED" >> $OUTPUT
-echo "EXEC_LDFLAGS=$EXEC_LDFLAGS" >> $OUTPUT
+++ /dev/null
-#!/bin/sh
-#
-# Record the version of the source that we are compiling.
-# We keep a record of the git revision in util/version.cc. This source file
-# is then built as a regular source file as part of the compilation process.
-# One can run "strings executable_filename | grep _build_" to find the version of
-# the source that we used to build the executable file.
-#
-
-# create git version file
-VFILE=$ROCKSDB_ROOT/util/build_version.cc.tmp
-trap "rm $VFILE" EXIT
-
-# check to see if git is in the path
-which git > /dev/null
-
-if [ "$?" = 0 ]; then
- env -i git rev-parse HEAD |
- awk '
- BEGIN {
- print "#include \"build_version.h\"\n"
- }
- { print "const char* rocksdb_build_git_sha = \"rocksdb_build_git_sha:" $0"\";" }
- ' > ${VFILE}
-else
- echo "git not found" |
- awk '
- BEGIN {
- print "#include \"build_version.h\""
- }
- { print "const char* rocksdb_build_git_sha = \"rocksdb_build_git_sha:git not found\";" }
- ' > ${VFILE}
-fi
-
-echo "const char* rocksdb_build_git_datetime = \"rocksdb_build_git_datetime:$(date)\";" >> ${VFILE}
-echo "const char* rocksdb_build_compile_date = __DATE__;" >> ${VFILE}
-echo "const char* rocksdb_build_compile_time = __TIME__;" >> ${VFILE}
-
-OUTFILE=$ROCKSDB_ROOT/util/build_version.cc
-if [ ! -e $OUTFILE ] || ! cmp -s $VFILE $OUTFILE; then
- cp $VFILE $OUTFILE
-fi
+++ /dev/null
-#!/bin/sh
-#
-# Set environment variables so that we can compile leveldb using
-# fbcode settings. It uses the latest g++ compiler and also
-# uses jemalloc
-
-TOOLCHAIN_REV=fbe3b095a4cc4a3713730050d182b7b4a80c342f
-TOOLCHAIN_EXECUTABLES="/mnt/gvfs/third-party/$TOOLCHAIN_REV/centos5.2-native"
-TOOLCHAIN_LIB_BASE="/mnt/gvfs/third-party/$TOOLCHAIN_REV/gcc-4.7.1-glibc-2.14.1"
-TOOL_JEMALLOC=jemalloc-3.3.1/9202ce3
-GLIBC_RUNTIME_PATH=/usr/local/fbcode/gcc-4.7.1-glibc-2.14.1
-
-# location of snappy headers and libraries
-SNAPPY_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/include"
-SNAPPY_LIBS=" $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/lib/libsnappy.a"
-
-# location of libevent
-LIBEVENT_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/libevent/libevent-1.4.14b/91ddd43/include"
-LIBEVENT_LIBS=" -L $TOOLCHAIN_LIB_BASE/libevent/libevent-1.4.14b/91ddd43/lib"
-
-# location of gflags headers and libraries
-GFLAGS_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/include"
-GFLAGS_LIBS=" $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/lib/libgflags.a"
-
-# use Intel SSE support for checksum calculations
-export USE_SSE=" -msse -msse4.2 "
-
-CC="$TOOLCHAIN_EXECUTABLES/clang/clang-3.1/6ca8a59/bin/clang $CLANG_INCLUDES"
-CXX="$TOOLCHAIN_EXECUTABLES/clang/clang-3.1/6ca8a59/bin/clang++ $CLANG_INCLUDES $JINCLUDE $SNAPPY_INCLUDE $LIBEVENT_INCLUDE $GFLAGS_INCLUDE"
-AR=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ar
-RANLIB=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ranlib
-
-CFLAGS="-B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin -nostdlib -nostdinc -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include/c++/4.7.1 -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include/c++/4.7.1/x86_64-facebook-linux -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include/c++/4.7.1/backward -isystem $TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/include -isystem $TOOLCHAIN_LIB_BASE/clang/clang-3.1/c8f7279/lib/clang/3.1/include -isystem $TOOLCHAIN_LIB_BASE/kernel-headers/kernel-headers-3.2.18_70_fbk11_00129_gc8882d0/da39a3e/include/linux -isystem $TOOLCHAIN_LIB_BASE/kernel-headers/kernel-headers-3.2.18_70_fbk11_00129_gc8882d0/da39a3e/include -Wall -Wno-sign-compare -Wno-unused-variable -Winvalid-pch -Wno-deprecated -Woverloaded-virtual"
-CXXFLAGS="$CFLAGS -nostdinc++ -std=gnu++0x"
-
-CFLAGS+=" -I $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/include -DHAVE_JEMALLOC"
-
-EXEC_LDFLAGS=" -Wl,--whole-archive $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/lib/libjemalloc.a"
-EXEC_LDFLAGS+=" -Wl,--no-whole-archive $TOOLCHAIN_LIB_BASE/libunwind/libunwind-1.0.1/350336c/lib/libunwind.a"
-EXEC_LDFLAGS+=" $HDFSLIB $SNAPPY_LIBS $LIBEVENT_LIBS $GFLAGS_LIBS"
-EXEC_LDFLAGS+=" -Wl,--dynamic-linker,$GLIBC_RUNTIME_PATH/lib/ld-linux-x86-64.so.2"
-EXEC_LDFLAGS+=" -B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin"
-
-PLATFORM_LDFLAGS="-L$TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/lib -L$TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/lib"
-
-EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $GFLAGS_LIBS"
-SNAPPY_LDFLAGS="$SNAPPY_LIBS"
-
-export CC CXX AR RANLIB CFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED SNAPPY_LDFLAGS
+++ /dev/null
-#!/bin/sh
-#
-# Set environment variables so that we can compile leveldb using
-# fbcode settings. It uses the latest g++ compiler and also
-# uses jemalloc
-
-TOOLCHAIN_REV=fbe3b095a4cc4a3713730050d182b7b4a80c342f
-TOOLCHAIN_EXECUTABLES="/mnt/gvfs/third-party/$TOOLCHAIN_REV/centos5.2-native"
-TOOLCHAIN_LIB_BASE="/mnt/gvfs/third-party/$TOOLCHAIN_REV/gcc-4.7.1-glibc-2.14.1"
-TOOL_JEMALLOC=jemalloc-3.3.1/9202ce3
-
-# location of libhdfs libraries
-if test "$USE_HDFS"; then
- JAVA_HOME="/usr/local/jdk-6u22-64"
- JINCLUDE="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
- GLIBC_RUNTIME_PATH="/usr/local/fbcode/gcc-4.7.1-glibc-2.14.1"
- HDFSLIB=" -Wl,--no-whole-archive hdfs/libhdfs.a -L$JAVA_HOME/jre/lib/amd64 "
- HDFSLIB+=" -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib "
- HDFSLIB+=" -ldl -lverify -ljava -ljvm "
-fi
-
-# location of snappy headers and libraries
-SNAPPY_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/include"
-SNAPPY_LIBS=" $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/lib/libsnappy.a"
-
-# location of zlib headers and libraries
-ZLIB_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/91ddd43/include"
-ZLIB_LIBS=" $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/91ddd43/lib/libz.a"
-
-# location of libevent
-LIBEVENT_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/libevent/libevent-1.4.14b/91ddd43/include"
-LIBEVENT_LIBS=" -L $TOOLCHAIN_LIB_BASE/libevent/libevent-1.4.14b/91ddd43/lib"
-
-# location of gflags headers and libraries
-GFLAGS_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/include"
-GFLAGS_LIBS=" $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/lib/libgflags.a"
-
-# use Intel SSE support for checksum calculations
-export USE_SSE=" -msse -msse4.2 "
-
-CC="$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.7.1-glibc-2.14.1/bin/gcc"
-CXX="$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.7.1-glibc-2.14.1/bin/g++ $JINCLUDE $SNAPPY_INCLUDE $ZLIB_INCLUDE $LIBEVENT_INCLUDE $GFLAGS_INCLUDE"
-AR=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ar
-RANLIB=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ranlib
-
-CFLAGS="-B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/bin/gold -m64 -mtune=generic -fPIC"
-CFLAGS+=" -I $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/include -DHAVE_JEMALLOC"
-
-EXEC_LDFLAGS=" -Wl,--whole-archive $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/lib/libjemalloc.a"
-EXEC_LDFLAGS+=" -Wl,--no-whole-archive $TOOLCHAIN_LIB_BASE/libunwind/libunwind-1.0.1/350336c/lib/libunwind.a"
-EXEC_LDFLAGS+=" $HDFSLIB $SNAPPY_LIBS $ZLIB_LIBS $LIBEVENT_LIBS $GFLAGS_LIBS"
-
-PLATFORM_LDFLAGS="-L$TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/lib -L$TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/lib"
-
-EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $GFLAGS_LIBS"
-SNAPPY_LDFLAGS="$SNAPPY_LIBS $ZLIB_LIBS"
-
-VALGRIND_VER="$TOOLCHAIN_LIB_BASE/valgrind/valgrind-3.8.1/91ddd43/bin/"
-
-export CC CXX AR RANLIB CFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED SNAPPY_LDFLAGS VALGRIND_VER
+++ /dev/null
-#!/bin/bash
-
-set -e
-
-NUM=10000000
-
-if [ $# -eq 1 ];then
- DATA_DIR=$1
-elif [ $# -eq 2 ];then
- DATA_DIR=$1
- STAT_FILE=$2
-fi
-
-# On the production build servers, set data and stat
-# files/directories not in /tmp or else the tempdir cleaning
-# scripts will make you very unhappy.
-DATA_DIR=${DATA_DIR:-$(mktemp -t -d rocksdb_XXXX)}
-STAT_FILE=${STAT_FILE:-$(mktemp -t -u rocksdb_test_stats_XXXX)}
-
-function cleanup {
- rm -rf $DATA_DIR
- rm -f $STAT_FILE.fillseq
- rm -f $STAT_FILE.readrandom
- rm -f $STAT_FILE.overwrite
-}
-
-trap cleanup EXIT
-
-function send_to_ods {
- key="$1"
- value="$2"
-
- if [ -z "$value" ];then
- echo >&2 "ERROR: Key $key doesn't have a value."
- return
- fi
- curl -s "https://www.intern.facebook.com/intern/agent/ods_set.php?entity=rocksdb_build&key=$key&value=$value" \
- --connect-timeout 60
-}
-
-make clean
-make db_bench -j$(nproc)
-
-./db_bench \
- --benchmarks=fillseq \
- --db=$DATA_DIR \
- --use_existing_db=0 \
- --bloom_bits=10 \
- --num=$NUM \
- --writes=$NUM \
- --cache_size=6442450944 \
- --cache_numshardbits=6 \
- --open_files=55000 \
- --statistics=1 \
- --histogram=1 \
- --disable_data_sync=1 \
- --disable_wal=1 \
- --sync=0 > ${STAT_FILE}.fillseq
-
-./db_bench \
- --benchmarks=overwrite \
- --db=$DATA_DIR \
- --use_existing_db=1 \
- --bloom_bits=10 \
- --num=$NUM \
- --writes=$((NUM / 2)) \
- --cache_size=6442450944 \
- --cache_numshardbits=6 \
- --open_files=55000 \
- --statistics=1 \
- --histogram=1 \
- --disable_data_sync=1 \
- --disable_wal=1 \
- --sync=0 \
- --threads=8 > ${STAT_FILE}.overwrite
-
-./db_bench \
- --benchmarks=readrandom \
- --db=$DATA_DIR \
- --use_existing_db=1 \
- --bloom_bits=10 \
- --num=$NUM \
- --reads=$((NUM / 100)) \
- --cache_size=6442450944 \
- --cache_numshardbits=6 \
- --open_files=55000 \
- --statistics=1 \
- --histogram=1 \
- --disable_data_sync=1 \
- --disable_wal=1 \
- --sync=0 \
- --threads=128 > ${STAT_FILE}.readrandom
-
-OVERWRITE_OPS=$(awk '/overwrite/ {print $5}' $STAT_FILE.overwrite)
-FILLSEQ_OPS=$(awk '/fillseq/ {print $5}' $STAT_FILE.fillseq)
-READRANDOM_OPS=$(awk '/readrandom/ {print $5}' $STAT_FILE.readrandom)
-
-send_to_ods rocksdb.build.overwrite.qps $OVERWRITE_OPS
-send_to_ods rocksdb.build.fillseq.qps $FILLSEQ_OPS
-send_to_ods rocksdb.build.readrandom.qps $READRANDOM_OPS
+++ /dev/null
-#!/bin/bash
-#A shell script for Jenknis to run valgrind on rocksdb tests
-#Returns 0 on success when there are no failed tests
-
-VALGRIND_DIR=build_tools/VALGRIND_LOGS
-make clean
-make -j$(nproc) valgrind_check
-NUM_FAILED_TESTS=$((`wc -l $VALGRIND_DIR/valgrind_failed_tests | awk '{print $1}'` - 1))
-if [ $NUM_FAILED_TESTS -lt 1 ]; then
- echo No tests have valgrind errors
- exit 0
-else
- cat $VALGRIND_DIR/valgrind_failed_tests
- exit 1
-fi
+++ /dev/null
-#!/bin/bash
-
-# Exit on error.
-set -e
-
-if [ -n "$USE_CLANG" ]; then
- echo "Error: Coverage test is supported only for gcc."
- exit 1
-fi
-
-ROOT=".."
-# Fetch right version of gcov
-if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
- source $ROOT/build_tools/fbcode.gcc471.sh
- GCOV=$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.7.1/cc6c9dc/bin/gcov
-else
- GCOV=$(which gcov)
-fi
-
-COVERAGE_DIR="$PWD/COVERAGE_REPORT"
-mkdir -p $COVERAGE_DIR
-
-# Find all gcno files to generate the coverage report
-
-GCNO_FILES=`find $ROOT -name "*.gcno"`
-$GCOV --preserve-paths --relative-only --no-output $GCNO_FILES 2>/dev/null |
- # Parse the raw gcov report to more human readable form.
- python $ROOT/coverage/parse_gcov_output.py |
- # Write the output to both stdout and report file.
- tee $COVERAGE_DIR/coverage_report_all.txt &&
-echo -e "Generated coverage report for all files: $COVERAGE_DIR/coverage_report_all.txt\n"
-
-# TODO: we also need to get the files of the latest commits.
-# Get the most recently committed files.
-LATEST_FILES=`
- git show --pretty="format:" --name-only HEAD |
- grep -v "^$" |
- paste -s -d,`
-RECENT_REPORT=$COVERAGE_DIR/coverage_report_recent.txt
-
-echo -e "Recently updated files: $LATEST_FILES\n" > $RECENT_REPORT
-$GCOV --preserve-paths --relative-only --no-output $GCNO_FILES 2>/dev/null |
- python $ROOT/coverage/parse_gcov_output.py -interested-files $LATEST_FILES |
- tee -a $RECENT_REPORT &&
-echo -e "Generated coverage report for recently updated files: $RECENT_REPORT\n"
-
-# Generate the html report. If we cannot find lcov in this machine, we'll simply
-# skip this step.
-echo "Generating the html coverage report..."
-
-LCOV=$(which lcov || true 2>/dev/null)
-if [ -z $LCOV ]
-then
- echo "Skip: Cannot find lcov to generate the html report."
- exit 0
-fi
-
-LCOV_VERSION=$(lcov -v | grep 1.1 || true)
-if [ $LCOV_VERSION ]
-then
- echo "Not supported lcov version. Expect lcov 1.1."
- exit 0
-fi
-
-(cd $ROOT; lcov --no-external \
- --capture \
- --directory $PWD \
- --gcov-tool $GCOV \
- --output-file $COVERAGE_DIR/coverage.info)
-
-genhtml $COVERAGE_DIR/coverage.info -o $COVERAGE_DIR
-
-echo "HTML Coverage report is generated in $COVERAGE_DIR"
+++ /dev/null
-import optparse
-import re
-import sys
-
-from optparse import OptionParser
-
-# the gcov report follows certain pattern. Each file will have two lines
-# of report, from which we can extract the file name, total lines and coverage
-# percentage.
-def parse_gcov_report(gcov_input):
- per_file_coverage = {}
- total_coverage = None
-
- for line in sys.stdin:
- line = line.strip()
-
- # --First line of the coverage report (with file name in it)?
- match_obj = re.match("^File '(.*)'$", line)
- if match_obj:
- # fetch the file name from the first line of the report.
- current_file = match_obj.group(1)
- continue
-
- # -- Second line of the file report (with coverage percentage)
- match_obj = re.match("^Lines executed:(.*)% of (.*)", line)
-
- if match_obj:
- coverage = float(match_obj.group(1))
- lines = int(match_obj.group(2))
-
- if current_file is not None:
- per_file_coverage[current_file] = (coverage, lines)
- current_file = None
- else:
- # If current_file is not set, we reach the last line of report,
- # which contains the summarized coverage percentage.
- total_coverage = (coverage, lines)
- continue
-
- # If the line's pattern doesn't fall into the above categories. We
- # can simply ignore them since they're either empty line or doesn't
- # find executable lines of the given file.
- current_file = None
-
- return per_file_coverage, total_coverage
-
-def get_option_parser():
- usage = "Parse the gcov output and generate more human-readable code " +\
- "coverage report."
- parser = OptionParser(usage)
-
- parser.add_option(
- "--interested-files", "-i",
- dest="filenames",
- help="Comma separated files names. if specified, we will display " +
- "the coverage report only for interested source files. " +
- "Otherwise we will display the coverage report for all " +
- "source files."
- )
- return parser
-
-def display_file_coverage(per_file_coverage, total_coverage):
- # To print out auto-adjustable column, we need to know the longest
- # length of file names.
- max_file_name_length = max(
- len(fname) for fname in per_file_coverage.keys()
- )
-
- # -- Print header
- # size of separator is determined by 3 column sizes:
- # file name, coverage percentage and lines.
- header_template = \
- "%" + str(max_file_name_length) + "s\t%s\t%s"
- separator = "-" * (max_file_name_length + 10 + 20)
- print header_template % ("Filename", "Coverage", "Lines")
- print separator
-
- # -- Print body
- # template for printing coverage report for each file.
- record_template = "%" + str(max_file_name_length) + "s\t%5.2f%%\t%10d"
-
- for fname, coverage_info in per_file_coverage.items():
- coverage, lines = coverage_info
- print record_template % (fname, coverage, lines)
-
- # -- Print footer
- if total_coverage:
- print separator
- print record_template % ("Total", total_coverage[0], total_coverage[1])
-
-def report_coverage():
- parser = get_option_parser()
- (options, args) = parser.parse_args()
-
- interested_files = set()
- if options.filenames is not None:
- interested_files = set(f.strip() for f in options.filenames.split(','))
-
- # To make things simple, right now we only read gcov report from the input
- per_file_coverage, total_coverage = parse_gcov_report(sys.stdin)
-
- # Check if we need to display coverage info for interested files.
- if len(interested_files):
- per_file_coverage = dict(
- (fname, per_file_coverage[fname]) for fname in interested_files
- if fname in per_file_coverage
- )
- # If we only interested in several files, it makes no sense to report
- # the total_coverage
- total_coverage = None
-
- if not len(per_file_coverage):
- print >> sys.stderr, "Cannot find coverage info for the given files."
- return
- display_file_coverage(per_file_coverage, total_coverage)
-
-if __name__ == "__main__":
- report_coverage()
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/builder.h"
-
-#include "db/filename.h"
-#include "db/dbformat.h"
-#include "db/merge_helper.h"
-#include "db/table_cache.h"
-#include "db/version_edit.h"
-#include "rocksdb/db.h"
-#include "rocksdb/table.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/options.h"
-#include "table/block_based_table_builder.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-class TableFactory;
-
-TableBuilder* GetTableBuilder(const Options& options, WritableFile* file,
- CompressionType compression_type) {
- return options.table_factory->GetTableBuilder(options, file,
- compression_type);
-}
-
-Status BuildTable(const std::string& dbname,
- Env* env,
- const Options& options,
- const EnvOptions& soptions,
- TableCache* table_cache,
- Iterator* iter,
- FileMetaData* meta,
- const Comparator* user_comparator,
- const SequenceNumber newest_snapshot,
- const SequenceNumber earliest_seqno_in_memtable,
- const bool enable_compression) {
- Status s;
- meta->file_size = 0;
- meta->smallest_seqno = meta->largest_seqno = 0;
- iter->SeekToFirst();
-
- // If the sequence number of the smallest entry in the memtable is
- // smaller than the most recent snapshot, then we do not trigger
- // removal of duplicate/deleted keys as part of this builder.
- bool purge = options.purge_redundant_kvs_while_flush;
- if (earliest_seqno_in_memtable <= newest_snapshot) {
- purge = false;
- }
-
- std::string fname = TableFileName(dbname, meta->number);
- if (iter->Valid()) {
- unique_ptr<WritableFile> file;
- s = env->NewWritableFile(fname, &file, soptions);
- if (!s.ok()) {
- return s;
- }
-
- TableBuilder* builder = GetTableBuilder(options, file.get(),
- options.compression);
-
- // the first key is the smallest key
- Slice key = iter->key();
- meta->smallest.DecodeFrom(key);
- meta->smallest_seqno = GetInternalKeySeqno(key);
- meta->largest_seqno = meta->smallest_seqno;
-
- MergeHelper merge(user_comparator, options.merge_operator.get(),
- options.info_log.get(),
- true /* internal key corruption is not ok */);
-
- if (purge) {
- // Ugly walkaround to avoid compiler error for release build
- bool ok __attribute__((unused)) = true;
-
- // Will write to builder if current key != prev key
- ParsedInternalKey prev_ikey;
- std::string prev_key;
- bool is_first_key = true; // Also write if this is the very first key
-
- while (iter->Valid()) {
- bool iterator_at_next = false;
-
- // Get current key
- ParsedInternalKey this_ikey;
- Slice key = iter->key();
- Slice value = iter->value();
-
- // In-memory key corruption is not ok;
- // TODO: find a clean way to treat in memory key corruption
- ok = ParseInternalKey(key, &this_ikey);
- assert(ok);
- assert(this_ikey.sequence >= earliest_seqno_in_memtable);
-
- // If the key is the same as the previous key (and it is not the
- // first key), then we skip it, since it is an older version.
- // Otherwise we output the key and mark it as the "new" previous key.
- if (!is_first_key && !user_comparator->Compare(prev_ikey.user_key,
- this_ikey.user_key)) {
- // seqno within the same key are in decreasing order
- assert(this_ikey.sequence < prev_ikey.sequence);
- } else {
- is_first_key = false;
-
- if (this_ikey.type == kTypeMerge) {
- // Handle merge-type keys using the MergeHelper
- merge.MergeUntil(iter, 0 /* don't worry about snapshot */);
- iterator_at_next = true;
- if (merge.IsSuccess()) {
- // Merge completed correctly.
- // Add the resulting merge key/value and continue to next
- builder->Add(merge.key(), merge.value());
- prev_key.assign(merge.key().data(), merge.key().size());
- ok = ParseInternalKey(Slice(prev_key), &prev_ikey);
- assert(ok);
- } else {
- // Merge did not find a Put/Delete.
- // Can not compact these merges into a kValueType.
- // Write them out one-by-one. (Proceed back() to front())
- const std::deque<std::string>& keys = merge.keys();
- const std::deque<std::string>& values = merge.values();
- assert(keys.size() == values.size() && keys.size() >= 1);
- std::deque<std::string>::const_reverse_iterator key_iter;
- std::deque<std::string>::const_reverse_iterator value_iter;
- for (key_iter=keys.rbegin(), value_iter = values.rbegin();
- key_iter != keys.rend() && value_iter != values.rend();
- ++key_iter, ++value_iter) {
-
- builder->Add(Slice(*key_iter), Slice(*value_iter));
- }
-
- // Sanity check. Both iterators should end at the same time
- assert(key_iter == keys.rend() && value_iter == values.rend());
-
- prev_key.assign(keys.front());
- ok = ParseInternalKey(Slice(prev_key), &prev_ikey);
- assert(ok);
- }
- } else {
- // Handle Put/Delete-type keys by simply writing them
- builder->Add(key, value);
- prev_key.assign(key.data(), key.size());
- ok = ParseInternalKey(Slice(prev_key), &prev_ikey);
- assert(ok);
- }
- }
-
- if (!iterator_at_next) iter->Next();
- }
-
- // The last key is the largest key
- meta->largest.DecodeFrom(Slice(prev_key));
- SequenceNumber seqno = GetInternalKeySeqno(Slice(prev_key));
- meta->smallest_seqno = std::min(meta->smallest_seqno, seqno);
- meta->largest_seqno = std::max(meta->largest_seqno, seqno);
-
- } else {
- for (; iter->Valid(); iter->Next()) {
- Slice key = iter->key();
- meta->largest.DecodeFrom(key);
- builder->Add(key, iter->value());
- SequenceNumber seqno = GetInternalKeySeqno(key);
- meta->smallest_seqno = std::min(meta->smallest_seqno, seqno);
- meta->largest_seqno = std::max(meta->largest_seqno, seqno);
- }
- }
-
- // Finish and check for builder errors
- if (s.ok()) {
- s = builder->Finish();
- if (s.ok()) {
- meta->file_size = builder->FileSize();
- assert(meta->file_size > 0);
- }
- } else {
- builder->Abandon();
- }
- delete builder;
-
- // Finish and check for file errors
- if (s.ok() && !options.disableDataSync) {
- if (options.use_fsync) {
- StopWatch sw(env, options.statistics, TABLE_SYNC_MICROS);
- s = file->Fsync();
- } else {
- StopWatch sw(env, options.statistics, TABLE_SYNC_MICROS);
- s = file->Sync();
- }
- }
- if (s.ok()) {
- s = file->Close();
- }
-
- if (s.ok()) {
- // Verify that the table is usable
- Iterator* it = table_cache->NewIterator(ReadOptions(),
- soptions,
- meta->number,
- meta->file_size);
- s = it->status();
- delete it;
- }
- }
-
- // Check for input iterator errors
- if (!iter->status().ok()) {
- s = iter->status();
- }
-
- if (s.ok() && meta->file_size > 0) {
- // Keep it
- } else {
- env->DeleteFile(fname);
- }
- return s;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#pragma once
-#include "rocksdb/comparator.h"
-#include "rocksdb/status.h"
-#include "rocksdb/types.h"
-#include "rocksdb/options.h"
-
-namespace rocksdb {
-
-struct Options;
-struct FileMetaData;
-
-class Env;
-struct EnvOptions;
-class Iterator;
-class TableCache;
-class VersionEdit;
-class TableBuilder;
-class WritableFile;
-
-
-extern TableBuilder* GetTableBuilder(const Options& options, WritableFile* file,
- CompressionType compression_type);
-
-// Build a Table file from the contents of *iter. The generated file
-// will be named according to meta->number. On success, the rest of
-// *meta will be filled with metadata about the generated table.
-// If no data is present in *iter, meta->file_size will be set to
-// zero, and no Table file will be produced.
-extern Status BuildTable(const std::string& dbname,
- Env* env,
- const Options& options,
- const EnvOptions& soptions,
- TableCache* table_cache,
- Iterator* iter,
- FileMetaData* meta,
- const Comparator* user_comparator,
- const SequenceNumber newest_snapshot,
- const SequenceNumber earliest_seqno_in_memtable,
- const bool enable_compression);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/c.h"
-
-#include <stdlib.h>
-#include <unistd.h>
-#include "rocksdb/cache.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/filter_policy.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/options.h"
-#include "rocksdb/status.h"
-#include "rocksdb/write_batch.h"
-
-using rocksdb::Cache;
-using rocksdb::Comparator;
-using rocksdb::CompressionType;
-using rocksdb::DB;
-using rocksdb::Env;
-using rocksdb::FileLock;
-using rocksdb::FilterPolicy;
-using rocksdb::Iterator;
-using rocksdb::Logger;
-using rocksdb::NewBloomFilterPolicy;
-using rocksdb::NewLRUCache;
-using rocksdb::Options;
-using rocksdb::RandomAccessFile;
-using rocksdb::Range;
-using rocksdb::ReadOptions;
-using rocksdb::SequentialFile;
-using rocksdb::Slice;
-using rocksdb::Snapshot;
-using rocksdb::Status;
-using rocksdb::WritableFile;
-using rocksdb::WriteBatch;
-using rocksdb::WriteOptions;
-
-using std::shared_ptr;
-
-extern "C" {
-
-struct leveldb_t { DB* rep; };
-struct leveldb_iterator_t { Iterator* rep; };
-struct leveldb_writebatch_t { WriteBatch rep; };
-struct leveldb_snapshot_t { const Snapshot* rep; };
-struct leveldb_readoptions_t { ReadOptions rep; };
-struct leveldb_writeoptions_t { WriteOptions rep; };
-struct leveldb_options_t { Options rep; };
-struct leveldb_seqfile_t { SequentialFile* rep; };
-struct leveldb_randomfile_t { RandomAccessFile* rep; };
-struct leveldb_writablefile_t { WritableFile* rep; };
-struct leveldb_filelock_t { FileLock* rep; };
-struct leveldb_logger_t { shared_ptr<Logger> rep; };
-struct leveldb_cache_t { shared_ptr<Cache> rep; };
-
-struct leveldb_comparator_t : public Comparator {
- void* state_;
- void (*destructor_)(void*);
- int (*compare_)(
- void*,
- const char* a, size_t alen,
- const char* b, size_t blen);
- const char* (*name_)(void*);
-
- virtual ~leveldb_comparator_t() {
- (*destructor_)(state_);
- }
-
- virtual int Compare(const Slice& a, const Slice& b) const {
- return (*compare_)(state_, a.data(), a.size(), b.data(), b.size());
- }
-
- virtual const char* Name() const {
- return (*name_)(state_);
- }
-
- // No-ops since the C binding does not support key shortening methods.
- virtual void FindShortestSeparator(std::string*, const Slice&) const { }
- virtual void FindShortSuccessor(std::string* key) const { }
-};
-
-struct leveldb_filterpolicy_t : public FilterPolicy {
- void* state_;
- void (*destructor_)(void*);
- const char* (*name_)(void*);
- char* (*create_)(
- void*,
- const char* const* key_array, const size_t* key_length_array,
- int num_keys,
- size_t* filter_length);
- unsigned char (*key_match_)(
- void*,
- const char* key, size_t length,
- const char* filter, size_t filter_length);
-
- virtual ~leveldb_filterpolicy_t() {
- (*destructor_)(state_);
- }
-
- virtual const char* Name() const {
- return (*name_)(state_);
- }
-
- virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const {
- std::vector<const char*> key_pointers(n);
- std::vector<size_t> key_sizes(n);
- for (int i = 0; i < n; i++) {
- key_pointers[i] = keys[i].data();
- key_sizes[i] = keys[i].size();
- }
- size_t len;
- char* filter = (*create_)(state_, &key_pointers[0], &key_sizes[0], n, &len);
- dst->append(filter, len);
- free(filter);
- }
-
- virtual bool KeyMayMatch(const Slice& key, const Slice& filter) const {
- return (*key_match_)(state_, key.data(), key.size(),
- filter.data(), filter.size());
- }
-};
-
-struct leveldb_env_t {
- Env* rep;
- bool is_default;
-};
-
-static bool SaveError(char** errptr, const Status& s) {
- assert(errptr != NULL);
- if (s.ok()) {
- return false;
- } else if (*errptr == NULL) {
- *errptr = strdup(s.ToString().c_str());
- } else {
- // TODO(sanjay): Merge with existing error?
- free(*errptr);
- *errptr = strdup(s.ToString().c_str());
- }
- return true;
-}
-
-static char* CopyString(const std::string& str) {
- char* result = reinterpret_cast<char*>(malloc(sizeof(char) * str.size()));
- memcpy(result, str.data(), sizeof(char) * str.size());
- return result;
-}
-
-leveldb_t* leveldb_open(
- const leveldb_options_t* options,
- const char* name,
- char** errptr) {
- DB* db;
- if (SaveError(errptr, DB::Open(options->rep, std::string(name), &db))) {
- return NULL;
- }
- leveldb_t* result = new leveldb_t;
- result->rep = db;
- return result;
-}
-
-void leveldb_close(leveldb_t* db) {
- delete db->rep;
- delete db;
-}
-
-void leveldb_put(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- const char* key, size_t keylen,
- const char* val, size_t vallen,
- char** errptr) {
- SaveError(errptr,
- db->rep->Put(options->rep, Slice(key, keylen), Slice(val, vallen)));
-}
-
-void leveldb_delete(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- const char* key, size_t keylen,
- char** errptr) {
- SaveError(errptr, db->rep->Delete(options->rep, Slice(key, keylen)));
-}
-
-
-void leveldb_write(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- leveldb_writebatch_t* batch,
- char** errptr) {
- SaveError(errptr, db->rep->Write(options->rep, &batch->rep));
-}
-
-char* leveldb_get(
- leveldb_t* db,
- const leveldb_readoptions_t* options,
- const char* key, size_t keylen,
- size_t* vallen,
- char** errptr) {
- char* result = NULL;
- std::string tmp;
- Status s = db->rep->Get(options->rep, Slice(key, keylen), &tmp);
- if (s.ok()) {
- *vallen = tmp.size();
- result = CopyString(tmp);
- } else {
- *vallen = 0;
- if (!s.IsNotFound()) {
- SaveError(errptr, s);
- }
- }
- return result;
-}
-
-leveldb_iterator_t* leveldb_create_iterator(
- leveldb_t* db,
- const leveldb_readoptions_t* options) {
- leveldb_iterator_t* result = new leveldb_iterator_t;
- result->rep = db->rep->NewIterator(options->rep);
- return result;
-}
-
-const leveldb_snapshot_t* leveldb_create_snapshot(
- leveldb_t* db) {
- leveldb_snapshot_t* result = new leveldb_snapshot_t;
- result->rep = db->rep->GetSnapshot();
- return result;
-}
-
-void leveldb_release_snapshot(
- leveldb_t* db,
- const leveldb_snapshot_t* snapshot) {
- db->rep->ReleaseSnapshot(snapshot->rep);
- delete snapshot;
-}
-
-char* leveldb_property_value(
- leveldb_t* db,
- const char* propname) {
- std::string tmp;
- if (db->rep->GetProperty(Slice(propname), &tmp)) {
- // We use strdup() since we expect human readable output.
- return strdup(tmp.c_str());
- } else {
- return NULL;
- }
-}
-
-void leveldb_approximate_sizes(
- leveldb_t* db,
- int num_ranges,
- const char* const* range_start_key, const size_t* range_start_key_len,
- const char* const* range_limit_key, const size_t* range_limit_key_len,
- uint64_t* sizes) {
- Range* ranges = new Range[num_ranges];
- for (int i = 0; i < num_ranges; i++) {
- ranges[i].start = Slice(range_start_key[i], range_start_key_len[i]);
- ranges[i].limit = Slice(range_limit_key[i], range_limit_key_len[i]);
- }
- db->rep->GetApproximateSizes(ranges, num_ranges, sizes);
- delete[] ranges;
-}
-
-void leveldb_compact_range(
- leveldb_t* db,
- const char* start_key, size_t start_key_len,
- const char* limit_key, size_t limit_key_len) {
- Slice a, b;
- db->rep->CompactRange(
- // Pass NULL Slice if corresponding "const char*" is NULL
- (start_key ? (a = Slice(start_key, start_key_len), &a) : NULL),
- (limit_key ? (b = Slice(limit_key, limit_key_len), &b) : NULL));
-}
-
-void leveldb_destroy_db(
- const leveldb_options_t* options,
- const char* name,
- char** errptr) {
- SaveError(errptr, DestroyDB(name, options->rep));
-}
-
-void leveldb_repair_db(
- const leveldb_options_t* options,
- const char* name,
- char** errptr) {
- SaveError(errptr, RepairDB(name, options->rep));
-}
-
-void leveldb_iter_destroy(leveldb_iterator_t* iter) {
- delete iter->rep;
- delete iter;
-}
-
-unsigned char leveldb_iter_valid(const leveldb_iterator_t* iter) {
- return iter->rep->Valid();
-}
-
-void leveldb_iter_seek_to_first(leveldb_iterator_t* iter) {
- iter->rep->SeekToFirst();
-}
-
-void leveldb_iter_seek_to_last(leveldb_iterator_t* iter) {
- iter->rep->SeekToLast();
-}
-
-void leveldb_iter_seek(leveldb_iterator_t* iter, const char* k, size_t klen) {
- iter->rep->Seek(Slice(k, klen));
-}
-
-void leveldb_iter_next(leveldb_iterator_t* iter) {
- iter->rep->Next();
-}
-
-void leveldb_iter_prev(leveldb_iterator_t* iter) {
- iter->rep->Prev();
-}
-
-const char* leveldb_iter_key(const leveldb_iterator_t* iter, size_t* klen) {
- Slice s = iter->rep->key();
- *klen = s.size();
- return s.data();
-}
-
-const char* leveldb_iter_value(const leveldb_iterator_t* iter, size_t* vlen) {
- Slice s = iter->rep->value();
- *vlen = s.size();
- return s.data();
-}
-
-void leveldb_iter_get_error(const leveldb_iterator_t* iter, char** errptr) {
- SaveError(errptr, iter->rep->status());
-}
-
-leveldb_writebatch_t* leveldb_writebatch_create() {
- return new leveldb_writebatch_t;
-}
-
-void leveldb_writebatch_destroy(leveldb_writebatch_t* b) {
- delete b;
-}
-
-void leveldb_writebatch_clear(leveldb_writebatch_t* b) {
- b->rep.Clear();
-}
-
-void leveldb_writebatch_put(
- leveldb_writebatch_t* b,
- const char* key, size_t klen,
- const char* val, size_t vlen) {
- b->rep.Put(Slice(key, klen), Slice(val, vlen));
-}
-
-void leveldb_writebatch_delete(
- leveldb_writebatch_t* b,
- const char* key, size_t klen) {
- b->rep.Delete(Slice(key, klen));
-}
-
-void leveldb_writebatch_iterate(
- leveldb_writebatch_t* b,
- void* state,
- void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
- void (*deleted)(void*, const char* k, size_t klen)) {
- class H : public WriteBatch::Handler {
- public:
- void* state_;
- void (*put_)(void*, const char* k, size_t klen, const char* v, size_t vlen);
- void (*deleted_)(void*, const char* k, size_t klen);
- virtual void Put(const Slice& key, const Slice& value) {
- (*put_)(state_, key.data(), key.size(), value.data(), value.size());
- }
- virtual void Delete(const Slice& key) {
- (*deleted_)(state_, key.data(), key.size());
- }
- };
- H handler;
- handler.state_ = state;
- handler.put_ = put;
- handler.deleted_ = deleted;
- b->rep.Iterate(&handler);
-}
-
-leveldb_options_t* leveldb_options_create() {
- return new leveldb_options_t;
-}
-
-void leveldb_options_destroy(leveldb_options_t* options) {
- delete options;
-}
-
-void leveldb_options_set_comparator(
- leveldb_options_t* opt,
- leveldb_comparator_t* cmp) {
- opt->rep.comparator = cmp;
-}
-
-void leveldb_options_set_filter_policy(
- leveldb_options_t* opt,
- leveldb_filterpolicy_t* policy) {
- opt->rep.filter_policy = policy;
-}
-
-void leveldb_options_set_create_if_missing(
- leveldb_options_t* opt, unsigned char v) {
- opt->rep.create_if_missing = v;
-}
-
-void leveldb_options_set_error_if_exists(
- leveldb_options_t* opt, unsigned char v) {
- opt->rep.error_if_exists = v;
-}
-
-void leveldb_options_set_paranoid_checks(
- leveldb_options_t* opt, unsigned char v) {
- opt->rep.paranoid_checks = v;
-}
-
-void leveldb_options_set_env(leveldb_options_t* opt, leveldb_env_t* env) {
- opt->rep.env = (env ? env->rep : NULL);
-}
-
-void leveldb_options_set_info_log(leveldb_options_t* opt, leveldb_logger_t* l) {
- if (l) {
- opt->rep.info_log = l->rep;
- }
-}
-
-void leveldb_options_set_write_buffer_size(leveldb_options_t* opt, size_t s) {
- opt->rep.write_buffer_size = s;
-}
-
-void leveldb_options_set_max_open_files(leveldb_options_t* opt, int n) {
- opt->rep.max_open_files = n;
-}
-
-void leveldb_options_set_cache(leveldb_options_t* opt, leveldb_cache_t* c) {
- if (c) {
- opt->rep.block_cache = c->rep;
- }
-}
-
-void leveldb_options_set_block_size(leveldb_options_t* opt, size_t s) {
- opt->rep.block_size = s;
-}
-
-void leveldb_options_set_block_restart_interval(leveldb_options_t* opt, int n) {
- opt->rep.block_restart_interval = n;
-}
-
-void leveldb_options_set_target_file_size_base(
- leveldb_options_t* opt, uint64_t n) {
- opt->rep.target_file_size_base = n;
-}
-
-void leveldb_options_set_target_file_size_multiplier(
- leveldb_options_t* opt, int n) {
- opt->rep.target_file_size_multiplier = n;
-}
-
-void leveldb_options_set_max_bytes_for_level_base(
- leveldb_options_t* opt, uint64_t n) {
- opt->rep.max_bytes_for_level_base = n;
-}
-
-void leveldb_options_set_max_bytes_for_level_multiplier(
- leveldb_options_t* opt, int n) {
- opt->rep.max_bytes_for_level_multiplier = n;
-}
-
-void leveldb_options_set_expanded_compaction_factor(
- leveldb_options_t* opt, int n) {
- opt->rep.expanded_compaction_factor = n;
-}
-
-void leveldb_options_set_max_grandparent_overlap_factor(
- leveldb_options_t* opt, int n) {
- opt->rep.max_grandparent_overlap_factor = n;
-}
-
-void leveldb_options_set_num_levels(leveldb_options_t* opt, int n) {
- opt->rep.num_levels = n;
-}
-
-void leveldb_options_set_level0_file_num_compaction_trigger(
- leveldb_options_t* opt, int n) {
- opt->rep.level0_file_num_compaction_trigger = n;
-}
-
-void leveldb_options_set_level0_slowdown_writes_trigger(
- leveldb_options_t* opt, int n) {
- opt->rep.level0_slowdown_writes_trigger = n;
-}
-
-void leveldb_options_set_level0_stop_writes_trigger(
- leveldb_options_t* opt, int n) {
- opt->rep.level0_stop_writes_trigger = n;
-}
-
-void leveldb_options_set_max_mem_compaction_level(
- leveldb_options_t* opt, int n) {
- opt->rep.max_mem_compaction_level = n;
-}
-
-void leveldb_options_set_compression(leveldb_options_t* opt, int t) {
- opt->rep.compression = static_cast<CompressionType>(t);
-}
-
-void leveldb_options_set_compression_per_level(leveldb_options_t* opt,
- int* level_values,
- size_t num_levels) {
- opt->rep.compression_per_level.resize(num_levels);
- for (size_t i = 0; i < num_levels; ++i) {
- opt->rep.compression_per_level[i] =
- static_cast<CompressionType>(level_values[i]);
- }
-}
-
-void leveldb_options_set_compression_options(
- leveldb_options_t* opt, int w_bits, int level, int strategy) {
- opt->rep.compression_opts.window_bits = w_bits;
- opt->rep.compression_opts.level = level;
- opt->rep.compression_opts.strategy = strategy;
-}
-
-void leveldb_options_set_disable_data_sync(
- leveldb_options_t* opt, bool disable_data_sync) {
- opt->rep.disableDataSync = disable_data_sync;
-}
-
-void leveldb_options_set_use_fsync(
- leveldb_options_t* opt, bool use_fsync) {
- opt->rep.use_fsync = use_fsync;
-}
-
-void leveldb_options_set_db_stats_log_interval(
- leveldb_options_t* opt, int db_stats_log_interval) {
- opt->rep.db_stats_log_interval = db_stats_log_interval;
-}
-
-void leveldb_options_set_db_log_dir(
- leveldb_options_t* opt, const char* db_log_dir) {
- opt->rep.db_log_dir = db_log_dir;
-}
-
-void leveldb_options_set_WAL_ttl_seconds(leveldb_options_t* opt, uint64_t ttl) {
- opt->rep.WAL_ttl_seconds = ttl;
-}
-
-void leveldb_options_set_WAL_size_limit_MB(
- leveldb_options_t* opt, uint64_t limit) {
- opt->rep.WAL_size_limit_MB = limit;
-}
-
-leveldb_comparator_t* leveldb_comparator_create(
- void* state,
- void (*destructor)(void*),
- int (*compare)(
- void*,
- const char* a, size_t alen,
- const char* b, size_t blen),
- const char* (*name)(void*)) {
- leveldb_comparator_t* result = new leveldb_comparator_t;
- result->state_ = state;
- result->destructor_ = destructor;
- result->compare_ = compare;
- result->name_ = name;
- return result;
-}
-
-void leveldb_comparator_destroy(leveldb_comparator_t* cmp) {
- delete cmp;
-}
-
-leveldb_filterpolicy_t* leveldb_filterpolicy_create(
- void* state,
- void (*destructor)(void*),
- char* (*create_filter)(
- void*,
- const char* const* key_array, const size_t* key_length_array,
- int num_keys,
- size_t* filter_length),
- unsigned char (*key_may_match)(
- void*,
- const char* key, size_t length,
- const char* filter, size_t filter_length),
- const char* (*name)(void*)) {
- leveldb_filterpolicy_t* result = new leveldb_filterpolicy_t;
- result->state_ = state;
- result->destructor_ = destructor;
- result->create_ = create_filter;
- result->key_match_ = key_may_match;
- result->name_ = name;
- return result;
-}
-
-void leveldb_filterpolicy_destroy(leveldb_filterpolicy_t* filter) {
- delete filter;
-}
-
-leveldb_filterpolicy_t* leveldb_filterpolicy_create_bloom(int bits_per_key) {
- // Make a leveldb_filterpolicy_t, but override all of its methods so
- // they delegate to a NewBloomFilterPolicy() instead of user
- // supplied C functions.
- struct Wrapper : public leveldb_filterpolicy_t {
- const FilterPolicy* rep_;
- ~Wrapper() { delete rep_; }
- const char* Name() const { return rep_->Name(); }
- void CreateFilter(const Slice* keys, int n, std::string* dst) const {
- return rep_->CreateFilter(keys, n, dst);
- }
- bool KeyMayMatch(const Slice& key, const Slice& filter) const {
- return rep_->KeyMayMatch(key, filter);
- }
- static void DoNothing(void*) { }
- };
- Wrapper* wrapper = new Wrapper;
- wrapper->rep_ = NewBloomFilterPolicy(bits_per_key);
- wrapper->state_ = NULL;
- wrapper->destructor_ = &Wrapper::DoNothing;
- return wrapper;
-}
-
-leveldb_readoptions_t* leveldb_readoptions_create() {
- return new leveldb_readoptions_t;
-}
-
-void leveldb_readoptions_destroy(leveldb_readoptions_t* opt) {
- delete opt;
-}
-
-void leveldb_readoptions_set_verify_checksums(
- leveldb_readoptions_t* opt,
- unsigned char v) {
- opt->rep.verify_checksums = v;
-}
-
-void leveldb_readoptions_set_fill_cache(
- leveldb_readoptions_t* opt, unsigned char v) {
- opt->rep.fill_cache = v;
-}
-
-void leveldb_readoptions_set_snapshot(
- leveldb_readoptions_t* opt,
- const leveldb_snapshot_t* snap) {
- opt->rep.snapshot = (snap ? snap->rep : NULL);
-}
-
-leveldb_writeoptions_t* leveldb_writeoptions_create() {
- return new leveldb_writeoptions_t;
-}
-
-void leveldb_writeoptions_destroy(leveldb_writeoptions_t* opt) {
- delete opt;
-}
-
-void leveldb_writeoptions_set_sync(
- leveldb_writeoptions_t* opt, unsigned char v) {
- opt->rep.sync = v;
-}
-
-leveldb_cache_t* leveldb_cache_create_lru(size_t capacity) {
- leveldb_cache_t* c = new leveldb_cache_t;
- c->rep = NewLRUCache(capacity);
- return c;
-}
-
-void leveldb_cache_destroy(leveldb_cache_t* cache) {
- delete cache;
-}
-
-leveldb_env_t* leveldb_create_default_env() {
- leveldb_env_t* result = new leveldb_env_t;
- result->rep = Env::Default();
- result->is_default = true;
- return result;
-}
-
-void leveldb_env_destroy(leveldb_env_t* env) {
- if (!env->is_default) delete env->rep;
- delete env;
-}
-
-} // end extern "C"
+++ /dev/null
-/* Copyright (c) 2011 The LevelDB Authors. All rights reserved.
- Use of this source code is governed by a BSD-style license that can be
- found in the LICENSE file. See the AUTHORS file for names of contributors. */
-
-#include "rocksdb/c.h"
-
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-const char* phase = "";
-static char dbname[200];
-
-static void StartPhase(const char* name) {
- fprintf(stderr, "=== Test %s\n", name);
- phase = name;
-}
-
-static const char* GetTempDir(void) {
- const char* ret = getenv("TEST_TMPDIR");
- if (ret == NULL || ret[0] == '\0')
- ret = "/tmp";
- return ret;
-}
-
-#define CheckNoError(err) \
- if ((err) != NULL) { \
- fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, phase, (err)); \
- abort(); \
- }
-
-#define CheckCondition(cond) \
- if (!(cond)) { \
- fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, phase, #cond); \
- abort(); \
- }
-
-static void CheckEqual(const char* expected, const char* v, size_t n) {
- if (expected == NULL && v == NULL) {
- // ok
- } else if (expected != NULL && v != NULL && n == strlen(expected) &&
- memcmp(expected, v, n) == 0) {
- // ok
- return;
- } else {
- fprintf(stderr, "%s: expected '%s', got '%s'\n",
- phase,
- (expected ? expected : "(null)"),
- (v ? v : "(null"));
- abort();
- }
-}
-
-static void Free(char** ptr) {
- if (*ptr) {
- free(*ptr);
- *ptr = NULL;
- }
-}
-
-static void CheckGet(
- leveldb_t* db,
- const leveldb_readoptions_t* options,
- const char* key,
- const char* expected) {
- char* err = NULL;
- size_t val_len;
- char* val;
- val = leveldb_get(db, options, key, strlen(key), &val_len, &err);
- CheckNoError(err);
- CheckEqual(expected, val, val_len);
- Free(&val);
-}
-
-static void CheckIter(leveldb_iterator_t* iter,
- const char* key, const char* val) {
- size_t len;
- const char* str;
- str = leveldb_iter_key(iter, &len);
- CheckEqual(key, str, len);
- str = leveldb_iter_value(iter, &len);
- CheckEqual(val, str, len);
-}
-
-// Callback from leveldb_writebatch_iterate()
-static void CheckPut(void* ptr,
- const char* k, size_t klen,
- const char* v, size_t vlen) {
- int* state = (int*) ptr;
- CheckCondition(*state < 2);
- switch (*state) {
- case 0:
- CheckEqual("bar", k, klen);
- CheckEqual("b", v, vlen);
- break;
- case 1:
- CheckEqual("box", k, klen);
- CheckEqual("c", v, vlen);
- break;
- }
- (*state)++;
-}
-
-// Callback from leveldb_writebatch_iterate()
-static void CheckDel(void* ptr, const char* k, size_t klen) {
- int* state = (int*) ptr;
- CheckCondition(*state == 2);
- CheckEqual("bar", k, klen);
- (*state)++;
-}
-
-static void CmpDestroy(void* arg) { }
-
-static int CmpCompare(void* arg, const char* a, size_t alen,
- const char* b, size_t blen) {
- int n = (alen < blen) ? alen : blen;
- int r = memcmp(a, b, n);
- if (r == 0) {
- if (alen < blen) r = -1;
- else if (alen > blen) r = +1;
- }
- return r;
-}
-
-static const char* CmpName(void* arg) {
- return "foo";
-}
-
-// Custom filter policy
-static unsigned char fake_filter_result = 1;
-static void FilterDestroy(void* arg) { }
-static const char* FilterName(void* arg) {
- return "TestFilter";
-}
-static char* FilterCreate(
- void* arg,
- const char* const* key_array, const size_t* key_length_array,
- int num_keys,
- size_t* filter_length) {
- *filter_length = 4;
- char* result = malloc(4);
- memcpy(result, "fake", 4);
- return result;
-}
-unsigned char FilterKeyMatch(
- void* arg,
- const char* key, size_t length,
- const char* filter, size_t filter_length) {
- CheckCondition(filter_length == 4);
- CheckCondition(memcmp(filter, "fake", 4) == 0);
- return fake_filter_result;
-}
-
-int main(int argc, char** argv) {
- leveldb_t* db;
- leveldb_comparator_t* cmp;
- leveldb_cache_t* cache;
- leveldb_env_t* env;
- leveldb_options_t* options;
- leveldb_readoptions_t* roptions;
- leveldb_writeoptions_t* woptions;
- char* err = NULL;
- int run = -1;
-
- snprintf(dbname, sizeof(dbname),
- "%s/leveldb_c_test-%d",
- GetTempDir(),
- ((int) geteuid()));
-
- StartPhase("create_objects");
- cmp = leveldb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName);
- env = leveldb_create_default_env();
- cache = leveldb_cache_create_lru(100000);
-
- options = leveldb_options_create();
- leveldb_options_set_comparator(options, cmp);
- leveldb_options_set_error_if_exists(options, 1);
- leveldb_options_set_cache(options, cache);
- leveldb_options_set_env(options, env);
- leveldb_options_set_info_log(options, NULL);
- leveldb_options_set_write_buffer_size(options, 100000);
- leveldb_options_set_paranoid_checks(options, 1);
- leveldb_options_set_max_open_files(options, 10);
- leveldb_options_set_block_size(options, 1024);
- leveldb_options_set_block_restart_interval(options, 8);
- leveldb_options_set_compression(options, leveldb_no_compression);
- leveldb_options_set_compression_options(options, -14, -1, 0);
- int compression_levels[] = {leveldb_no_compression, leveldb_no_compression,
- leveldb_no_compression, leveldb_no_compression};
- leveldb_options_set_compression_per_level(options, compression_levels, 4);
-
- roptions = leveldb_readoptions_create();
- leveldb_readoptions_set_verify_checksums(roptions, 1);
- leveldb_readoptions_set_fill_cache(roptions, 0);
-
- woptions = leveldb_writeoptions_create();
- leveldb_writeoptions_set_sync(woptions, 1);
-
- StartPhase("destroy");
- leveldb_destroy_db(options, dbname, &err);
- Free(&err);
-
- StartPhase("open_error");
- db = leveldb_open(options, dbname, &err);
- CheckCondition(err != NULL);
- Free(&err);
-
- StartPhase("open");
- leveldb_options_set_create_if_missing(options, 1);
- db = leveldb_open(options, dbname, &err);
- CheckNoError(err);
- CheckGet(db, roptions, "foo", NULL);
-
- StartPhase("put");
- leveldb_put(db, woptions, "foo", 3, "hello", 5, &err);
- CheckNoError(err);
- CheckGet(db, roptions, "foo", "hello");
-
- StartPhase("compactall");
- leveldb_compact_range(db, NULL, 0, NULL, 0);
- CheckGet(db, roptions, "foo", "hello");
-
- StartPhase("compactrange");
- leveldb_compact_range(db, "a", 1, "z", 1);
- CheckGet(db, roptions, "foo", "hello");
-
- StartPhase("writebatch");
- {
- leveldb_writebatch_t* wb = leveldb_writebatch_create();
- leveldb_writebatch_put(wb, "foo", 3, "a", 1);
- leveldb_writebatch_clear(wb);
- leveldb_writebatch_put(wb, "bar", 3, "b", 1);
- leveldb_writebatch_put(wb, "box", 3, "c", 1);
- leveldb_writebatch_delete(wb, "bar", 3);
- leveldb_write(db, woptions, wb, &err);
- CheckNoError(err);
- CheckGet(db, roptions, "foo", "hello");
- CheckGet(db, roptions, "bar", NULL);
- CheckGet(db, roptions, "box", "c");
- int pos = 0;
- leveldb_writebatch_iterate(wb, &pos, CheckPut, CheckDel);
- CheckCondition(pos == 3);
- leveldb_writebatch_destroy(wb);
- }
-
- StartPhase("iter");
- {
- leveldb_iterator_t* iter = leveldb_create_iterator(db, roptions);
- CheckCondition(!leveldb_iter_valid(iter));
- leveldb_iter_seek_to_first(iter);
- CheckCondition(leveldb_iter_valid(iter));
- CheckIter(iter, "box", "c");
- leveldb_iter_next(iter);
- CheckIter(iter, "foo", "hello");
- leveldb_iter_prev(iter);
- CheckIter(iter, "box", "c");
- leveldb_iter_prev(iter);
- CheckCondition(!leveldb_iter_valid(iter));
- leveldb_iter_seek_to_last(iter);
- CheckIter(iter, "foo", "hello");
- leveldb_iter_seek(iter, "b", 1);
- CheckIter(iter, "box", "c");
- leveldb_iter_get_error(iter, &err);
- CheckNoError(err);
- leveldb_iter_destroy(iter);
- }
-
- StartPhase("approximate_sizes");
- {
- int i;
- int n = 20000;
- char keybuf[100];
- char valbuf[100];
- uint64_t sizes[2];
- const char* start[2] = { "a", "k00000000000000010000" };
- size_t start_len[2] = { 1, 21 };
- const char* limit[2] = { "k00000000000000010000", "z" };
- size_t limit_len[2] = { 21, 1 };
- leveldb_writeoptions_set_sync(woptions, 0);
- for (i = 0; i < n; i++) {
- snprintf(keybuf, sizeof(keybuf), "k%020d", i);
- snprintf(valbuf, sizeof(valbuf), "v%020d", i);
- leveldb_put(db, woptions, keybuf, strlen(keybuf), valbuf, strlen(valbuf),
- &err);
- CheckNoError(err);
- }
- leveldb_approximate_sizes(db, 2, start, start_len, limit, limit_len, sizes);
- CheckCondition(sizes[0] > 0);
- CheckCondition(sizes[1] > 0);
- }
-
- StartPhase("property");
- {
- char* prop = leveldb_property_value(db, "nosuchprop");
- CheckCondition(prop == NULL);
- prop = leveldb_property_value(db, "rocksdb.stats");
- CheckCondition(prop != NULL);
- Free(&prop);
- }
-
- StartPhase("snapshot");
- {
- const leveldb_snapshot_t* snap;
- snap = leveldb_create_snapshot(db);
- leveldb_delete(db, woptions, "foo", 3, &err);
- CheckNoError(err);
- leveldb_readoptions_set_snapshot(roptions, snap);
- CheckGet(db, roptions, "foo", "hello");
- leveldb_readoptions_set_snapshot(roptions, NULL);
- CheckGet(db, roptions, "foo", NULL);
- leveldb_release_snapshot(db, snap);
- }
-
- StartPhase("repair");
- {
- // If we do not compact here, then the lazy deletion of
- // files (https://reviews.facebook.net/D6123) would leave
- // around deleted files and the repair process will find
- // those files and put them back into the database.
- leveldb_compact_range(db, NULL, 0, NULL, 0);
- leveldb_close(db);
- leveldb_options_set_create_if_missing(options, 0);
- leveldb_options_set_error_if_exists(options, 0);
- leveldb_repair_db(options, dbname, &err);
- CheckNoError(err);
- db = leveldb_open(options, dbname, &err);
- CheckNoError(err);
- CheckGet(db, roptions, "foo", NULL);
- CheckGet(db, roptions, "bar", NULL);
- CheckGet(db, roptions, "box", "c");
- leveldb_options_set_create_if_missing(options, 1);
- leveldb_options_set_error_if_exists(options, 1);
- }
-
- StartPhase("filter");
- for (run = 0; run < 2; run++) {
- // First run uses custom filter, second run uses bloom filter
- CheckNoError(err);
- leveldb_filterpolicy_t* policy;
- if (run == 0) {
- policy = leveldb_filterpolicy_create(
- NULL, FilterDestroy, FilterCreate, FilterKeyMatch, FilterName);
- } else {
- policy = leveldb_filterpolicy_create_bloom(10);
- }
-
- // Create new database
- leveldb_close(db);
- leveldb_destroy_db(options, dbname, &err);
- leveldb_options_set_filter_policy(options, policy);
- db = leveldb_open(options, dbname, &err);
- CheckNoError(err);
- leveldb_put(db, woptions, "foo", 3, "foovalue", 8, &err);
- CheckNoError(err);
- leveldb_put(db, woptions, "bar", 3, "barvalue", 8, &err);
- CheckNoError(err);
- leveldb_compact_range(db, NULL, 0, NULL, 0);
-
- fake_filter_result = 1;
- CheckGet(db, roptions, "foo", "foovalue");
- CheckGet(db, roptions, "bar", "barvalue");
- if (phase == 0) {
- // Must not find value when custom filter returns false
- fake_filter_result = 0;
- CheckGet(db, roptions, "foo", NULL);
- CheckGet(db, roptions, "bar", NULL);
- fake_filter_result = 1;
-
- CheckGet(db, roptions, "foo", "foovalue");
- CheckGet(db, roptions, "bar", "barvalue");
- }
- leveldb_options_set_filter_policy(options, NULL);
- leveldb_filterpolicy_destroy(policy);
- }
-
- StartPhase("cleanup");
- leveldb_close(db);
- leveldb_options_destroy(options);
- leveldb_readoptions_destroy(roptions);
- leveldb_writeoptions_destroy(woptions);
- leveldb_cache_destroy(cache);
- leveldb_comparator_destroy(cmp);
- leveldb_env_destroy(env);
-
- fprintf(stderr, "PASS\n");
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/db.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include "rocksdb/cache.h"
-#include "rocksdb/env.h"
-#include "rocksdb/table.h"
-#include "rocksdb/write_batch.h"
-#include "db/db_impl.h"
-#include "db/filename.h"
-#include "db/log_format.h"
-#include "db/version_set.h"
-#include "util/logging.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-static const int kValueSize = 1000;
-
-class CorruptionTest {
- public:
- test::ErrorEnv env_;
- std::string dbname_;
- shared_ptr<Cache> tiny_cache_;
- Options options_;
- DB* db_;
-
- CorruptionTest() {
- tiny_cache_ = NewLRUCache(100);
- options_.env = &env_;
- dbname_ = test::TmpDir() + "/db_test";
- DestroyDB(dbname_, options_);
-
- db_ = nullptr;
- options_.create_if_missing = true;
- options_.block_size_deviation = 0; // make unit test pass for now
- Reopen();
- options_.create_if_missing = false;
- }
-
- ~CorruptionTest() {
- delete db_;
- DestroyDB(dbname_, Options());
- }
-
- Status TryReopen(Options* options = nullptr) {
- delete db_;
- db_ = nullptr;
- Options opt = (options ? *options : options_);
- opt.env = &env_;
- opt.block_cache = tiny_cache_;
- opt.block_size_deviation = 0;
- opt.arena_block_size = 4096;
- return DB::Open(opt, dbname_, &db_);
- }
-
- void Reopen(Options* options = nullptr) {
- ASSERT_OK(TryReopen(options));
- }
-
- void RepairDB() {
- delete db_;
- db_ = nullptr;
- ASSERT_OK(::rocksdb::RepairDB(dbname_, options_));
- }
-
- void Build(int n) {
- std::string key_space, value_space;
- WriteBatch batch;
- for (int i = 0; i < n; i++) {
- //if ((i % 100) == 0) fprintf(stderr, "@ %d of %d\n", i, n);
- Slice key = Key(i, &key_space);
- batch.Clear();
- batch.Put(key, Value(i, &value_space));
- ASSERT_OK(db_->Write(WriteOptions(), &batch));
- }
- }
-
- void Check(int min_expected, int max_expected) {
- unsigned int next_expected = 0;
- int missed = 0;
- int bad_keys = 0;
- int bad_values = 0;
- int correct = 0;
- std::string value_space;
- Iterator* iter = db_->NewIterator(ReadOptions());
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- uint64_t key;
- Slice in(iter->key());
- if (!ConsumeDecimalNumber(&in, &key) ||
- !in.empty() ||
- key < next_expected) {
- bad_keys++;
- continue;
- }
- missed += (key - next_expected);
- next_expected = key + 1;
- if (iter->value() != Value(key, &value_space)) {
- bad_values++;
- } else {
- correct++;
- }
- }
- delete iter;
-
- fprintf(stderr,
- "expected=%d..%d; got=%d; bad_keys=%d; bad_values=%d; missed=%d\n",
- min_expected, max_expected, correct, bad_keys, bad_values, missed);
- ASSERT_LE(min_expected, correct);
- ASSERT_GE(max_expected, correct);
- }
-
- void Corrupt(FileType filetype, int offset, int bytes_to_corrupt) {
- // Pick file to corrupt
- std::vector<std::string> filenames;
- ASSERT_OK(env_.GetChildren(dbname_, &filenames));
- uint64_t number;
- FileType type;
- std::string fname;
- int picked_number = -1;
- for (unsigned int i = 0; i < filenames.size(); i++) {
- if (ParseFileName(filenames[i], &number, &type) &&
- type == filetype &&
- int(number) > picked_number) { // Pick latest file
- fname = dbname_ + "/" + filenames[i];
- picked_number = number;
- }
- }
- ASSERT_TRUE(!fname.empty()) << filetype;
-
- struct stat sbuf;
- if (stat(fname.c_str(), &sbuf) != 0) {
- const char* msg = strerror(errno);
- ASSERT_TRUE(false) << fname << ": " << msg;
- }
-
- if (offset < 0) {
- // Relative to end of file; make it absolute
- if (-offset > sbuf.st_size) {
- offset = 0;
- } else {
- offset = sbuf.st_size + offset;
- }
- }
- if (offset > sbuf.st_size) {
- offset = sbuf.st_size;
- }
- if (offset + bytes_to_corrupt > sbuf.st_size) {
- bytes_to_corrupt = sbuf.st_size - offset;
- }
-
- // Do it
- std::string contents;
- Status s = ReadFileToString(Env::Default(), fname, &contents);
- ASSERT_TRUE(s.ok()) << s.ToString();
- for (int i = 0; i < bytes_to_corrupt; i++) {
- contents[i + offset] ^= 0x80;
- }
- s = WriteStringToFile(Env::Default(), contents, fname);
- ASSERT_TRUE(s.ok()) << s.ToString();
- }
-
- int Property(const std::string& name) {
- std::string property;
- int result;
- if (db_->GetProperty(name, &property) &&
- sscanf(property.c_str(), "%d", &result) == 1) {
- return result;
- } else {
- return -1;
- }
- }
-
- // Return the ith key
- Slice Key(int i, std::string* storage) {
- char buf[100];
- snprintf(buf, sizeof(buf), "%016d", i);
- storage->assign(buf, strlen(buf));
- return Slice(*storage);
- }
-
- // Return the value to associate with the specified key
- Slice Value(int k, std::string* storage) {
- Random r(k);
- return test::RandomString(&r, kValueSize, storage);
- }
-};
-
-TEST(CorruptionTest, Recovery) {
- Build(100);
- Check(100, 100);
- Corrupt(kLogFile, 19, 1); // WriteBatch tag for first record
- Corrupt(kLogFile, log::kBlockSize + 1000, 1); // Somewhere in second block
- Reopen();
-
- // The 64 records in the first two log blocks are completely lost.
- Check(36, 36);
-}
-
-TEST(CorruptionTest, RecoverWriteError) {
- env_.writable_file_error_ = true;
- Status s = TryReopen();
- ASSERT_TRUE(!s.ok());
-}
-
-TEST(CorruptionTest, NewFileErrorDuringWrite) {
- // Do enough writing to force minor compaction
- env_.writable_file_error_ = true;
- const int num = 3 + (Options().write_buffer_size / kValueSize);
- std::string value_storage;
- Status s;
- bool failed = false;
- for (int i = 0; i < num; i++) {
- WriteBatch batch;
- batch.Put("a", Value(100, &value_storage));
- s = db_->Write(WriteOptions(), &batch);
- if (!s.ok()) {
- failed = true;
- }
- ASSERT_TRUE(!failed || !s.ok());
- }
- ASSERT_TRUE(!s.ok());
- ASSERT_GE(env_.num_writable_file_errors_, 1);
- env_.writable_file_error_ = false;
- Reopen();
-}
-
-TEST(CorruptionTest, TableFile) {
- Build(100);
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
- dbi->TEST_FlushMemTable();
- dbi->TEST_CompactRange(0, nullptr, nullptr);
- dbi->TEST_CompactRange(1, nullptr, nullptr);
-
- Corrupt(kTableFile, 100, 1);
- Check(99, 99);
-}
-
-TEST(CorruptionTest, TableFileIndexData) {
- Build(10000); // Enough to build multiple Tables
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
- dbi->TEST_FlushMemTable();
-
- Corrupt(kTableFile, -2000, 500);
- Reopen();
- Check(5000, 9999);
-}
-
-TEST(CorruptionTest, MissingDescriptor) {
- Build(1000);
- RepairDB();
- Reopen();
- Check(1000, 1000);
-}
-
-TEST(CorruptionTest, SequenceNumberRecovery) {
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v1"));
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v2"));
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v3"));
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v4"));
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v5"));
- RepairDB();
- Reopen();
- std::string v;
- ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
- ASSERT_EQ("v5", v);
- // Write something. If sequence number was not recovered properly,
- // it will be hidden by an earlier write.
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v6"));
- ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
- ASSERT_EQ("v6", v);
- Reopen();
- ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
- ASSERT_EQ("v6", v);
-}
-
-TEST(CorruptionTest, CorruptedDescriptor) {
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "hello"));
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
- dbi->TEST_FlushMemTable();
- dbi->TEST_CompactRange(0, nullptr, nullptr);
-
- Corrupt(kDescriptorFile, 0, 1000);
- Status s = TryReopen();
- ASSERT_TRUE(!s.ok());
-
- RepairDB();
- Reopen();
- std::string v;
- ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
- ASSERT_EQ("hello", v);
-}
-
-TEST(CorruptionTest, CompactionInputError) {
- Build(10);
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
- dbi->TEST_FlushMemTable();
- const int last = dbi->MaxMemCompactionLevel();
- ASSERT_EQ(1, Property("rocksdb.num-files-at-level" + NumberToString(last)));
-
- Corrupt(kTableFile, 100, 1);
- Check(9, 9);
-
- // Force compactions by writing lots of values
- Build(10000);
- Check(10000, 10000);
-}
-
-TEST(CorruptionTest, CompactionInputErrorParanoid) {
- Options options;
- options.paranoid_checks = true;
- options.write_buffer_size = 1048576;
- Reopen(&options);
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
-
- // Fill levels >= 1 so memtable compaction outputs to level 1
- for (int level = 1; level < dbi->NumberLevels(); level++) {
- dbi->Put(WriteOptions(), "", "begin");
- dbi->Put(WriteOptions(), "~", "end");
- dbi->TEST_FlushMemTable();
- }
-
- Build(10);
- dbi->TEST_FlushMemTable();
- dbi->TEST_WaitForCompact();
- ASSERT_EQ(1, Property("rocksdb.num-files-at-level0"));
-
- Corrupt(kTableFile, 100, 1);
- Check(9, 9);
-
- // Write must eventually fail because of corrupted table
- Status s;
- std::string tmp1, tmp2;
- bool failed = false;
- for (int i = 0; i < 10000 && s.ok(); i++) {
- s = db_->Put(WriteOptions(), Key(i, &tmp1), Value(i, &tmp2));
- if (!s.ok()) {
- failed = true;
- }
- // if one write failed, every subsequent write must fail, too
- ASSERT_TRUE(!failed || !s.ok()) << "write did not fail in a corrupted db";
- }
- ASSERT_TRUE(!s.ok()) << "write did not fail in corrupted paranoid db";
-}
-
-TEST(CorruptionTest, UnrelatedKeys) {
- Build(10);
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
- dbi->TEST_FlushMemTable();
- Corrupt(kTableFile, 100, 1);
-
- std::string tmp1, tmp2;
- ASSERT_OK(db_->Put(WriteOptions(), Key(1000, &tmp1), Value(1000, &tmp2)));
- std::string v;
- ASSERT_OK(db_->Get(ReadOptions(), Key(1000, &tmp1), &v));
- ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
- dbi->TEST_FlushMemTable();
- ASSERT_OK(db_->Get(ReadOptions(), Key(1000, &tmp1), &v));
- ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <cstddef>
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <gflags/gflags.h>
-#include "db/db_impl.h"
-#include "db/version_set.h"
-#include "db/db_statistics.h"
-#include "rocksdb/options.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/write_batch.h"
-#include "rocksdb/statistics.h"
-#include "port/port.h"
-#include "util/bit_set.h"
-#include "util/crc32c.h"
-#include "util/histogram.h"
-#include "util/mutexlock.h"
-#include "util/random.h"
-#include "util/stack_trace.h"
-#include "util/string_util.h"
-#include "util/testutil.h"
-#include "hdfs/env_hdfs.h"
-#include "utilities/merge_operators.h"
-
-
-DEFINE_string(benchmarks,
-
- "fillseq,"
- "fillsync,"
- "fillrandom,"
- "overwrite,"
- "readrandom,"
- "readrandom,"
- "readseq,"
- "readreverse,"
- "compact,"
- "readrandom,"
- "readseq,"
- "readreverse,"
- "readwhilewriting,"
- "readrandomwriterandom,"
- "updaterandom,"
- "randomwithverify,"
- "fill100K,"
- "crc32c,"
- "snappycomp,"
- "snappyuncomp,"
- "acquireload,"
- "fillfromstdin,",
-
- "Comma-separated list of operations to run in the specified order"
- "Actual benchmarks:\n"
- "\tfillseq -- write N values in sequential key"
- " order in async mode\n"
- "\tfillrandom -- write N values in random key order in async"
- " mode\n"
- "\toverwrite -- overwrite N values in random key order in"
- " async mode\n"
- "\tfillsync -- write N/100 values in random key order in "
- "sync mode\n"
- "\tfill100K -- write N/1000 100K values in random order in"
- " async mode\n"
- "\tdeleteseq -- delete N keys in sequential order\n"
- "\tdeleterandom -- delete N keys in random order\n"
- "\treadseq -- read N times sequentially\n"
- "\treadreverse -- read N times in reverse order\n"
- "\treadrandom -- read N times in random order\n"
- "\treadmissing -- read N missing keys in random order\n"
- "\treadhot -- read N times in random order from 1% section "
- "of DB\n"
- "\treadwhilewriting -- 1 writer, N threads doing random "
- "reads\n"
- "\treadrandomwriterandom -- N threads doing random-read, "
- "random-write\n"
- "\tprefixscanrandom -- prefix scan N times in random order\n"
- "\tupdaterandom -- N threads doing read-modify-write for random "
- "keys\n"
- "\tappendrandom -- N threads doing read-modify-write with "
- "growing values\n"
- "\tmergerandom -- same as updaterandom/appendrandom using merge"
- " operator. "
- "Must be used with merge_operator\n"
- "\tseekrandom -- N random seeks\n"
- "\tcrc32c -- repeated crc32c of 4K of data\n"
- "\tacquireload -- load N*1000 times\n"
- "Meta operations:\n"
- "\tcompact -- Compact the entire DB\n"
- "\tstats -- Print DB stats\n"
- "\tlevelstats -- Print the number of files and bytes per level\n"
- "\tsstables -- Print sstable info\n"
- "\theapprofile -- Dump a heap profile (if supported by this"
- " port)\n");
-
-DEFINE_int64(num, 1000000, "Number of key/values to place in database");
-
-DEFINE_int64(numdistinct, 1000,
- "Number of distinct keys to use. Used in RandomWithVerify to "
- "read/write on fewer keys so that gets are more likely to find the"
- " key and puts are more likely to update the same key");
-
-DEFINE_int64(reads, -1, "Number of read operations to do. "
- "If negative, do FLAGS_num reads.");
-
-DEFINE_int64(read_range, 1, "When ==1 reads use ::Get, when >1 reads use"
- " an iterator");
-
-DEFINE_bool(use_prefix_blooms, false, "Whether to place prefixes in blooms");
-
-DEFINE_bool(use_prefix_api, false, "Whether to set ReadOptions.prefix for"
- " prefixscanrandom. If true, use_prefix_blooms must also be true.");
-
-DEFINE_int64(seed, 0, "Seed base for random number generators. "
- "When 0 it is deterministic.");
-
-DEFINE_int32(threads, 1, "Number of concurrent threads to run.");
-
-DEFINE_int32(duration, 0, "Time in seconds for the random-ops tests to run."
- " When 0 then num & reads determine the test duration");
-
-DEFINE_int32(value_size, 100, "Size of each value");
-
-
-// the maximum size of key in bytes
-static const int kMaxKeySize = 128;
-static bool ValidateKeySize(const char* flagname, int32_t value) {
- if (value > kMaxKeySize) {
- fprintf(stderr, "Invalid value for --%s: %d, must be < %d\n",
- flagname, value, kMaxKeySize);
- return false;
- }
- return true;
-}
-DEFINE_int32(key_size, 16, "size of each key");
-static const bool FLAGS_key_size_dummy =
- google::RegisterFlagValidator(&FLAGS_key_size, &ValidateKeySize);
-
-DEFINE_double(compression_ratio, 0.5, "Arrange to generate values that shrink"
- " to this fraction of their original size after compression");
-
-DEFINE_bool(histogram, false, "Print histogram of operation timings");
-
-DEFINE_int32(write_buffer_size, rocksdb::Options().write_buffer_size,
- "Number of bytes to buffer in memtable before compacting");
-
-DEFINE_int32(max_write_buffer_number,
- rocksdb::Options().max_write_buffer_number,
- "The number of in-memory memtables. Each memtable is of size"
- "write_buffer_size.");
-
-DEFINE_int32(min_write_buffer_number_to_merge,
- rocksdb::Options().min_write_buffer_number_to_merge,
- "The minimum number of write buffers that will be merged together"
- "before writing to storage. This is cheap because it is an"
- "in-memory merge. If this feature is not enabled, then all these"
- "write buffers are flushed to L0 as separate files and this "
- "increases read amplification because a get request has to check"
- " in all of these files. Also, an in-memory merge may result in"
- " writing less data to storage if there are duplicate records "
- " in each of these individual write buffers.");
-
-DEFINE_int32(max_background_compactions,
- rocksdb::Options().max_background_compactions,
- "The maximum number of concurrent background compactions"
- " that can occur in parallel.");
-
-static rocksdb::CompactionStyle FLAGS_compaction_style_e;
-DEFINE_int32(compaction_style, (int32_t) rocksdb::Options().compaction_style,
- "style of compaction: level-based vs universal");
-
-DEFINE_int32(universal_size_ratio, 0,
- "Percentage flexibility while comparing file size"
- " (for universal compaction only).");
-
-DEFINE_int32(universal_min_merge_width, 0, "The minimum number of files in a"
- " single compaction run (for universal compaction only).");
-
-DEFINE_int32(universal_max_merge_width, 0, "The max number of files to compact"
- " in universal style compaction");
-
-DEFINE_int32(universal_max_size_amplification_percent, 0,
- "The max size amplification for universal style compaction");
-
-DEFINE_int64(cache_size, -1, "Number of bytes to use as a cache of uncompressed"
- "data. Negative means use default settings.");
-
-DEFINE_int32(block_size, rocksdb::Options().block_size,
- "Number of bytes in a block.");
-
-DEFINE_int64(compressed_cache_size, -1,
- "Number of bytes to use as a cache of compressed data.");
-
-DEFINE_int32(open_files, rocksdb::Options().max_open_files,
- "Maximum number of files to keep open at the same time"
- " (use default if == 0)");
-
-DEFINE_int32(bloom_bits, -1, "Bloom filter bits per key. Negative means"
- " use default settings.");
-
-DEFINE_bool(use_existing_db, false, "If true, do not destroy the existing"
- " database. If you set this flag and also specify a benchmark that"
- " wants a fresh database, that benchmark will fail.");
-
-DEFINE_string(db, "", "Use the db with the following name.");
-
-static bool ValidateCacheNumshardbits(const char* flagname, int32_t value) {
- if (value >= 20) {
- fprintf(stderr, "Invalid value for --%s: %d, must be < 20\n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(cache_numshardbits, -1, "Number of shards for the block cache"
- " is 2 ** cache_numshardbits. Negative means use default settings."
- " This is applied only if FLAGS_cache_size is non-negative.");
-static const bool FLAGS_cache_numshardbits_dummy =
- google::RegisterFlagValidator(&FLAGS_cache_numshardbits,
- &ValidateCacheNumshardbits);
-
-DEFINE_int32(cache_remove_scan_count_limit, 32, "");
-
-DEFINE_bool(verify_checksum, false, "Verify checksum for every block read"
- " from storage");
-
-DEFINE_bool(statistics, false, "Database statistics");
-static class std::shared_ptr<rocksdb::Statistics> dbstats;
-
-DEFINE_int64(writes, -1, "Number of write operations to do. If negative, do"
- " --num reads.");
-
-DEFINE_int32(writes_per_second, 0, "Per-thread rate limit on writes per second."
- " No limit when <= 0. Only for the readwhilewriting test.");
-
-DEFINE_bool(sync, false, "Sync all writes to disk");
-
-DEFINE_bool(disable_data_sync, false, "If true, do not wait until data is"
- " synced to disk.");
-
-DEFINE_bool(use_fsync, false, "If true, issue fsync instead of fdatasync");
-
-DEFINE_bool(disable_wal, false, "If true, do not write WAL for write.");
-
-DEFINE_bool(use_snapshot, false, "If true, create a snapshot per query when"
- " randomread benchmark is used");
-
-DEFINE_bool(get_approx, false, "If true, call GetApproximateSizes per query"
- " when read_range is > 1 and randomread benchmark is used");
-
-DEFINE_int32(num_levels, 7, "The total number of levels");
-
-DEFINE_int32(target_file_size_base, 2 * 1048576, "Target file size at level-1");
-
-DEFINE_int32(target_file_size_multiplier, 1,
- "A multiplier to compute target level-N file size (N >= 2)");
-
-DEFINE_uint64(max_bytes_for_level_base, 10 * 1048576, "Max bytes for level-1");
-
-DEFINE_int32(max_bytes_for_level_multiplier, 10,
- "A multiplier to compute max bytes for level-N (N >= 2)");
-
-static std::vector<int> FLAGS_max_bytes_for_level_multiplier_additional_v;
-DEFINE_string(max_bytes_for_level_multiplier_additional, "",
- "A vector that specifies additional fanout per level");
-
-DEFINE_int32(level0_stop_writes_trigger, 12, "Number of files in level-0"
- " that will trigger put stop.");
-
-DEFINE_int32(level0_slowdown_writes_trigger, 8, "Number of files in level-0"
- " that will slow down writes.");
-
-DEFINE_int32(level0_file_num_compaction_trigger, 4, "Number of files in level-0"
- " when compactions start");
-
-static bool ValidateInt32Percent(const char* flagname, int32_t value) {
- if (value <= 0 || value>=100) {
- fprintf(stderr, "Invalid value for --%s: %d, 0< pct <100 \n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(readwritepercent, 90, "Ratio of reads to reads/writes (expressed"
- " as percentage) for the ReadRandomWriteRandom workload. The "
- "default value 90 means 90% operations out of all reads and writes"
- " operations are reads. In other words, 9 gets for every 1 put.");
-static const bool FLAGS_readwritepercent_dummy =
- google::RegisterFlagValidator(&FLAGS_readwritepercent, &ValidateInt32Percent);
-
-DEFINE_int32(deletepercent, 2, "Percentage of deletes out of reads/writes/"
- "deletes (used in RandomWithVerify only). RandomWithVerify "
- "calculates writepercent as (100 - FLAGS_readwritepercent - "
- "deletepercent), so deletepercent must be smaller than (100 - "
- "FLAGS_readwritepercent)");
-static const bool FLAGS_deletepercent_dummy =
- google::RegisterFlagValidator(&FLAGS_deletepercent, &ValidateInt32Percent);
-
-DEFINE_int32(disable_seek_compaction, false, "Option to disable compaction"
- " triggered by read.");
-
-DEFINE_uint64(delete_obsolete_files_period_micros, 0, "Option to delete "
- "obsolete files periodically. 0 means that obsolete files are"
- " deleted after every compaction run.");
-
-enum rocksdb::CompressionType StringToCompressionType(const char* ctype) {
- assert(ctype);
-
- if (!strcasecmp(ctype, "none"))
- return rocksdb::kNoCompression;
- else if (!strcasecmp(ctype, "snappy"))
- return rocksdb::kSnappyCompression;
- else if (!strcasecmp(ctype, "zlib"))
- return rocksdb::kZlibCompression;
- else if (!strcasecmp(ctype, "bzip2"))
- return rocksdb::kBZip2Compression;
-
- fprintf(stdout, "Cannot parse compression type '%s'\n", ctype);
- return rocksdb::kSnappyCompression; //default value
-}
-DEFINE_string(compression_type, "snappy",
- "Algorithm to use to compress the database");
-static enum rocksdb::CompressionType FLAGS_compression_type_e =
- rocksdb::kSnappyCompression;
-
-DEFINE_int32(min_level_to_compress, -1, "If non-negative, compression starts"
- " from this level. Levels with number < min_level_to_compress are"
- " not compressed. Otherwise, apply compression_type to "
- "all levels.");
-
-static bool ValidateTableCacheNumshardbits(const char* flagname,
- int32_t value) {
- if (0 >= value || value > 20) {
- fprintf(stderr, "Invalid value for --%s: %d, must be 0 < val <= 20\n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(table_cache_numshardbits, 4, "");
-static const bool FLAGS_table_cache_numshardbits_dummy =
- google::RegisterFlagValidator(&FLAGS_table_cache_numshardbits,
- &ValidateTableCacheNumshardbits);
-
-DEFINE_string(hdfs, "", "Name of hdfs environment");
-// posix or hdfs environment
-static rocksdb::Env* FLAGS_env = rocksdb::Env::Default();
-
-DEFINE_int64(stats_interval, 0, "Stats are reported every N operations when "
- "this is greater than zero. When 0 the interval grows over time.");
-
-DEFINE_int32(stats_per_interval, 0, "Reports additional stats per interval when"
- " this is greater than 0.");
-
-static bool ValidateRateLimit(const char* flagname, double value) {
- static constexpr double EPSILON = 1e-10;
- if ( value < -EPSILON ) {
- fprintf(stderr, "Invalid value for --%s: %12.6f, must be >= 0.0\n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_double(soft_rate_limit, 0.0, "");
-static const bool FLAGS_soft_rate_limit_dummy =
- google::RegisterFlagValidator(&FLAGS_soft_rate_limit, &ValidateRateLimit);
-
-DEFINE_double(hard_rate_limit, 0.0, "When not equal to 0 this make threads "
- "sleep at each stats reporting interval until the compaction"
- " score for all levels is less than or equal to this value.");
-static const bool FLAGS_hard_rate_limit_dummy =
- google::RegisterFlagValidator(&FLAGS_hard_rate_limit, &ValidateRateLimit);
-
-DEFINE_int32(rate_limit_delay_max_milliseconds, 1000,
- "When hard_rate_limit is set then this is the max time a put will"
- " be stalled.");
-
-DEFINE_int32(max_grandparent_overlap_factor, 10, "Control maximum bytes of "
- "overlaps in grandparent (i.e., level+2) before we stop building a"
- " single file in a level->level+1 compaction.");
-
-DEFINE_bool(readonly, false, "Run read only benchmarks.");
-
-DEFINE_bool(disable_auto_compactions, false, "Do not auto trigger compactions");
-
-DEFINE_int32(source_compaction_factor, 1, "Cap the size of data in level-K for"
- " a compaction run that compacts Level-K with Level-(K+1) (for"
- " K >= 1)");
-
-DEFINE_uint64(wal_ttl_seconds, 0, "Set the TTL for the WAL Files in seconds.");
-DEFINE_uint64(wal_size_limit_MB, 0, "Set the size limit for the WAL Files"
- " in MB.");
-
-DEFINE_bool(bufferedio, rocksdb::EnvOptions().use_os_buffer,
- "Allow buffered io using OS buffers");
-
-DEFINE_bool(mmap_read, rocksdb::EnvOptions().use_mmap_reads,
- "Allow reads to occur via mmap-ing files");
-
-DEFINE_bool(mmap_write, rocksdb::EnvOptions().use_mmap_writes,
- "Allow writes to occur via mmap-ing files");
-
-DEFINE_bool(advise_random_on_open, rocksdb::Options().advise_random_on_open,
- "Advise random access on table file open");
-
-DEFINE_string(compaction_fadvice, "NORMAL",
- "Access pattern advice when a file is compacted");
-static auto FLAGS_compaction_fadvice_e =
- rocksdb::Options().access_hint_on_compaction_start;
-
-DEFINE_bool(use_multiget, false,
- "Use multiget to access a series of keys instead of get");
-
-DEFINE_int64(keys_per_multiget, 90, "If use_multiget is true, determines number"
- " of keys to group per call Arbitrary default is good because it"
- " agrees with readwritepercent");
-
-// TODO: Apply this flag to generic Get calls too. Currently only with Multiget
-DEFINE_bool(warn_missing_keys, true, "Print a message to user when a key is"
- " missing in a Get/MultiGet call");
-
-DEFINE_bool(use_adaptive_mutex, rocksdb::Options().use_adaptive_mutex,
- "Use adaptive mutex");
-
-DEFINE_uint64(bytes_per_sync, rocksdb::Options().bytes_per_sync,
- "Allows OS to incrementally sync files to disk while they are"
- " being written, in the background. Issue one request for every"
- " bytes_per_sync written. 0 turns it off.");
-DEFINE_bool(filter_deletes, false, " On true, deletes use bloom-filter and drop"
- " the delete if key not present");
-
-static bool ValidatePrefixSize(const char* flagname, int32_t value) {
- if (value < 0 || value>=2000000000) {
- fprintf(stderr, "Invalid value for --%s: %d. 0<= PrefixSize <=2000000000\n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(prefix_size, 0, "Control the prefix size for PrefixHashRep");
-static const bool FLAGS_prefix_size_dummy =
- google::RegisterFlagValidator(&FLAGS_prefix_size, &ValidatePrefixSize);
-
-enum RepFactory {
- kSkipList,
- kPrefixHash,
- kUnsorted,
- kVectorRep
-};
-enum RepFactory StringToRepFactory(const char* ctype) {
- assert(ctype);
-
- if (!strcasecmp(ctype, "skip_list"))
- return kSkipList;
- else if (!strcasecmp(ctype, "prefix_hash"))
- return kPrefixHash;
- else if (!strcasecmp(ctype, "unsorted"))
- return kUnsorted;
- else if (!strcasecmp(ctype, "vector"))
- return kVectorRep;
-
- fprintf(stdout, "Cannot parse memreptable %s\n", ctype);
- return kSkipList;
-}
-static enum RepFactory FLAGS_rep_factory;
-DEFINE_string(memtablerep, "skip_list", "");
-
-DEFINE_string(merge_operator, "", "The merge operator to use with the database."
- "If a new merge operator is specified, be sure to use fresh"
- " database The possible merge operators are defined in"
- " utilities/merge_operators.h");
-
-namespace rocksdb {
-
-// Helper for quickly generating random data.
-class RandomGenerator {
- private:
- std::string data_;
- unsigned int pos_;
-
- public:
- RandomGenerator() {
- // We use a limited amount of data over and over again and ensure
- // that it is larger than the compression window (32KB), and also
- // large enough to serve all typical value sizes we want to write.
- Random rnd(301);
- std::string piece;
- while (data_.size() < (unsigned)std::max(1048576, FLAGS_value_size)) {
- // Add a short fragment that is as compressible as specified
- // by FLAGS_compression_ratio.
- test::CompressibleString(&rnd, FLAGS_compression_ratio, 100, &piece);
- data_.append(piece);
- }
- pos_ = 0;
- }
-
- Slice Generate(unsigned int len) {
- if (pos_ + len > data_.size()) {
- pos_ = 0;
- assert(len < data_.size());
- }
- pos_ += len;
- return Slice(data_.data() + pos_ - len, len);
- }
-};
-
-static Slice TrimSpace(Slice s) {
- unsigned int start = 0;
- while (start < s.size() && isspace(s[start])) {
- start++;
- }
- unsigned int limit = s.size();
- while (limit > start && isspace(s[limit-1])) {
- limit--;
- }
- return Slice(s.data() + start, limit - start);
-}
-
-static void AppendWithSpace(std::string* str, Slice msg) {
- if (msg.empty()) return;
- if (!str->empty()) {
- str->push_back(' ');
- }
- str->append(msg.data(), msg.size());
-}
-
-class Stats {
- private:
- int id_;
- double start_;
- double finish_;
- double seconds_;
- long long done_;
- long long last_report_done_;
- long long next_report_;
- int64_t bytes_;
- double last_op_finish_;
- double last_report_finish_;
- HistogramImpl hist_;
- std::string message_;
- bool exclude_from_merge_;
-
- public:
- Stats() { Start(-1); }
-
- void Start(int id) {
- id_ = id;
- next_report_ = FLAGS_stats_interval ? FLAGS_stats_interval : 100;
- last_op_finish_ = start_;
- hist_.Clear();
- done_ = 0;
- last_report_done_ = 0;
- bytes_ = 0;
- seconds_ = 0;
- start_ = FLAGS_env->NowMicros();
- finish_ = start_;
- last_report_finish_ = start_;
- message_.clear();
- // When set, stats from this thread won't be merged with others.
- exclude_from_merge_ = false;
- }
-
- void Merge(const Stats& other) {
- if (other.exclude_from_merge_)
- return;
-
- hist_.Merge(other.hist_);
- done_ += other.done_;
- bytes_ += other.bytes_;
- seconds_ += other.seconds_;
- if (other.start_ < start_) start_ = other.start_;
- if (other.finish_ > finish_) finish_ = other.finish_;
-
- // Just keep the messages from one thread
- if (message_.empty()) message_ = other.message_;
- }
-
- void Stop() {
- finish_ = FLAGS_env->NowMicros();
- seconds_ = (finish_ - start_) * 1e-6;
- }
-
- void AddMessage(Slice msg) {
- AppendWithSpace(&message_, msg);
- }
-
- void SetId(int id) { id_ = id; }
- void SetExcludeFromMerge() { exclude_from_merge_ = true; }
-
- void FinishedSingleOp(DB* db) {
- if (FLAGS_histogram) {
- double now = FLAGS_env->NowMicros();
- double micros = now - last_op_finish_;
- hist_.Add(micros);
- if (micros > 20000 && !FLAGS_stats_interval) {
- fprintf(stderr, "long op: %.1f micros%30s\r", micros, "");
- fflush(stderr);
- }
- last_op_finish_ = now;
- }
-
- done_++;
- if (done_ >= next_report_) {
- if (!FLAGS_stats_interval) {
- if (next_report_ < 1000) next_report_ += 100;
- else if (next_report_ < 5000) next_report_ += 500;
- else if (next_report_ < 10000) next_report_ += 1000;
- else if (next_report_ < 50000) next_report_ += 5000;
- else if (next_report_ < 100000) next_report_ += 10000;
- else if (next_report_ < 500000) next_report_ += 50000;
- else next_report_ += 100000;
- fprintf(stderr, "... finished %lld ops%30s\r", done_, "");
- fflush(stderr);
- } else {
- double now = FLAGS_env->NowMicros();
- fprintf(stderr,
- "%s ... thread %d: (%lld,%lld) ops and "
- "(%.1f,%.1f) ops/second in (%.6f,%.6f) seconds\n",
- FLAGS_env->TimeToString((uint64_t) now/1000000).c_str(),
- id_,
- done_ - last_report_done_, done_,
- (done_ - last_report_done_) /
- ((now - last_report_finish_) / 1000000.0),
- done_ / ((now - start_) / 1000000.0),
- (now - last_report_finish_) / 1000000.0,
- (now - start_) / 1000000.0);
-
- if (FLAGS_stats_per_interval) {
- std::string stats;
- if (db && db->GetProperty("rocksdb.stats", &stats))
- fprintf(stderr, "%s\n", stats.c_str());
- }
-
- fflush(stderr);
- next_report_ += FLAGS_stats_interval;
- last_report_finish_ = now;
- last_report_done_ = done_;
- }
- }
- }
-
- void AddBytes(int64_t n) {
- bytes_ += n;
- }
-
- void Report(const Slice& name) {
- // Pretend at least one op was done in case we are running a benchmark
- // that does not call FinishedSingleOp().
- if (done_ < 1) done_ = 1;
-
- std::string extra;
- if (bytes_ > 0) {
- // Rate is computed on actual elapsed time, not the sum of per-thread
- // elapsed times.
- double elapsed = (finish_ - start_) * 1e-6;
- char rate[100];
- snprintf(rate, sizeof(rate), "%6.1f MB/s",
- (bytes_ / 1048576.0) / elapsed);
- extra = rate;
- }
- AppendWithSpace(&extra, message_);
- double elapsed = (finish_ - start_) * 1e-6;
- double throughput = (double)done_/elapsed;
-
- fprintf(stdout, "%-12s : %11.3f micros/op %ld ops/sec;%s%s\n",
- name.ToString().c_str(),
- elapsed * 1e6 / done_,
- (long)throughput,
- (extra.empty() ? "" : " "),
- extra.c_str());
- if (FLAGS_histogram) {
- fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
- }
- fflush(stdout);
- }
-};
-
-// State shared by all concurrent executions of the same benchmark.
-struct SharedState {
- port::Mutex mu;
- port::CondVar cv;
- int total;
-
- // Each thread goes through the following states:
- // (1) initializing
- // (2) waiting for others to be initialized
- // (3) running
- // (4) done
-
- long num_initialized;
- long num_done;
- bool start;
-
- SharedState() : cv(&mu) { }
-};
-
-// Per-thread state for concurrent executions of the same benchmark.
-struct ThreadState {
- int tid; // 0..n-1 when running in n threads
- Random64 rand; // Has different seeds for different threads
- Stats stats;
- SharedState* shared;
-
- /* implicit */ ThreadState(int index)
- : tid(index),
- rand((FLAGS_seed ? FLAGS_seed : 1000) + index) {
- }
-};
-
-class Duration {
- public:
- Duration(int max_seconds, long long max_ops) {
- max_seconds_ = max_seconds;
- max_ops_= max_ops;
- ops_ = 0;
- start_at_ = FLAGS_env->NowMicros();
- }
-
- bool Done(int increment) {
- if (increment <= 0) increment = 1; // avoid Done(0) and infinite loops
- ops_ += increment;
-
- if (max_seconds_) {
- // Recheck every appx 1000 ops (exact iff increment is factor of 1000)
- if ((ops_/1000) != ((ops_-increment)/1000)) {
- double now = FLAGS_env->NowMicros();
- return ((now - start_at_) / 1000000.0) >= max_seconds_;
- } else {
- return false;
- }
- } else {
- return ops_ > max_ops_;
- }
- }
-
- private:
- int max_seconds_;
- long long max_ops_;
- long long ops_;
- double start_at_;
-};
-
-class Benchmark {
- private:
- shared_ptr<Cache> cache_;
- shared_ptr<Cache> compressed_cache_;
- const FilterPolicy* filter_policy_;
- const SliceTransform* prefix_extractor_;
- DB* db_;
- long long num_;
- int value_size_;
- int key_size_;
- int entries_per_batch_;
- WriteOptions write_options_;
- long long reads_;
- long long writes_;
- long long readwrites_;
- int heap_counter_;
- char keyFormat_[100]; // will contain the format of key. e.g "%016d"
- void PrintHeader() {
- PrintEnvironment();
- fprintf(stdout, "Keys: %d bytes each\n", FLAGS_key_size);
- fprintf(stdout, "Values: %d bytes each (%d bytes after compression)\n",
- FLAGS_value_size,
- static_cast<int>(FLAGS_value_size * FLAGS_compression_ratio + 0.5));
- fprintf(stdout, "Entries: %lld\n", num_);
- fprintf(stdout, "RawSize: %.1f MB (estimated)\n",
- ((static_cast<int64_t>(FLAGS_key_size + FLAGS_value_size) * num_)
- / 1048576.0));
- fprintf(stdout, "FileSize: %.1f MB (estimated)\n",
- (((FLAGS_key_size + FLAGS_value_size * FLAGS_compression_ratio)
- * num_)
- / 1048576.0));
- fprintf(stdout, "Write rate limit: %d\n", FLAGS_writes_per_second);
- switch (FLAGS_compression_type_e) {
- case rocksdb::kNoCompression:
- fprintf(stdout, "Compression: none\n");
- break;
- case rocksdb::kSnappyCompression:
- fprintf(stdout, "Compression: snappy\n");
- break;
- case rocksdb::kZlibCompression:
- fprintf(stdout, "Compression: zlib\n");
- break;
- case rocksdb::kBZip2Compression:
- fprintf(stdout, "Compression: bzip2\n");
- break;
- }
-
- switch (FLAGS_rep_factory) {
- case kPrefixHash:
- fprintf(stdout, "Memtablerep: prefix_hash\n");
- break;
- case kSkipList:
- fprintf(stdout, "Memtablerep: skip_list\n");
- break;
- case kUnsorted:
- fprintf(stdout, "Memtablerep: unsorted\n");
- break;
- case kVectorRep:
- fprintf(stdout, "Memtablerep: vector\n");
- break;
- }
-
- PrintWarnings();
- fprintf(stdout, "------------------------------------------------\n");
- }
-
- void PrintWarnings() {
-#if defined(__GNUC__) && !defined(__OPTIMIZE__)
- fprintf(stdout,
- "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n"
- );
-#endif
-#ifndef NDEBUG
- fprintf(stdout,
- "WARNING: Assertions are enabled; benchmarks unnecessarily slow\n");
-#endif
- if (FLAGS_compression_type_e != rocksdb::kNoCompression) {
- // The test string should not be too small.
- const int len = FLAGS_block_size;
- char* text = (char*) malloc(len+1);
- bool result = true;
- const char* name = nullptr;
- std::string compressed;
-
- memset(text, (int) 'y', len);
- text[len] = '\0';
- switch (FLAGS_compression_type_e) {
- case kSnappyCompression:
- result = port::Snappy_Compress(Options().compression_opts, text,
- strlen(text), &compressed);
- name = "Snappy";
- break;
- case kZlibCompression:
- result = port::Zlib_Compress(Options().compression_opts, text,
- strlen(text), &compressed);
- name = "Zlib";
- break;
- case kBZip2Compression:
- result = port::BZip2_Compress(Options().compression_opts, text,
- strlen(text), &compressed);
- name = "BZip2";
- break;
- case kNoCompression:
- assert(false); // cannot happen
- break;
- }
-
- if (!result) {
- fprintf(stdout, "WARNING: %s compression is not enabled\n", name);
- } else if (name && compressed.size() >= strlen(text)) {
- fprintf(stdout, "WARNING: %s compression is not effective\n", name);
- }
-
- free(text);
- }
- }
-
- void PrintEnvironment() {
- fprintf(stderr, "LevelDB: version %d.%d\n",
- kMajorVersion, kMinorVersion);
-
-#if defined(__linux)
- time_t now = time(nullptr);
- fprintf(stderr, "Date: %s", ctime(&now)); // ctime() adds newline
-
- FILE* cpuinfo = fopen("/proc/cpuinfo", "r");
- if (cpuinfo != nullptr) {
- char line[1000];
- int num_cpus = 0;
- std::string cpu_type;
- std::string cache_size;
- while (fgets(line, sizeof(line), cpuinfo) != nullptr) {
- const char* sep = strchr(line, ':');
- if (sep == nullptr) {
- continue;
- }
- Slice key = TrimSpace(Slice(line, sep - 1 - line));
- Slice val = TrimSpace(Slice(sep + 1));
- if (key == "model name") {
- ++num_cpus;
- cpu_type = val.ToString();
- } else if (key == "cache size") {
- cache_size = val.ToString();
- }
- }
- fclose(cpuinfo);
- fprintf(stderr, "CPU: %d * %s\n", num_cpus, cpu_type.c_str());
- fprintf(stderr, "CPUCache: %s\n", cache_size.c_str());
- }
-#endif
- }
-
- public:
- Benchmark()
- : cache_(FLAGS_cache_size >= 0 ?
- (FLAGS_cache_numshardbits >= 1 ?
- NewLRUCache(FLAGS_cache_size, FLAGS_cache_numshardbits,
- FLAGS_cache_remove_scan_count_limit) :
- NewLRUCache(FLAGS_cache_size)) : nullptr),
- compressed_cache_(FLAGS_compressed_cache_size >= 0 ?
- (FLAGS_cache_numshardbits >= 1 ?
- NewLRUCache(FLAGS_compressed_cache_size, FLAGS_cache_numshardbits) :
- NewLRUCache(FLAGS_compressed_cache_size)) : nullptr),
- filter_policy_(FLAGS_bloom_bits >= 0
- ? NewBloomFilterPolicy(FLAGS_bloom_bits)
- : nullptr),
- prefix_extractor_(NewFixedPrefixTransform(FLAGS_key_size-1)),
- db_(nullptr),
- num_(FLAGS_num),
- value_size_(FLAGS_value_size),
- key_size_(FLAGS_key_size),
- entries_per_batch_(1),
- reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
- writes_(FLAGS_writes < 0 ? FLAGS_num : FLAGS_writes),
- readwrites_((FLAGS_writes < 0 && FLAGS_reads < 0)? FLAGS_num :
- ((FLAGS_writes > FLAGS_reads) ? FLAGS_writes : FLAGS_reads)
- ),
- heap_counter_(0) {
- std::vector<std::string> files;
- FLAGS_env->GetChildren(FLAGS_db, &files);
- for (unsigned int i = 0; i < files.size(); i++) {
- if (Slice(files[i]).starts_with("heap-")) {
- FLAGS_env->DeleteFile(FLAGS_db + "/" + files[i]);
- }
- }
- if (!FLAGS_use_existing_db) {
- DestroyDB(FLAGS_db, Options());
- }
- }
-
- ~Benchmark() {
- delete db_;
- delete filter_policy_;
- delete prefix_extractor_;
- }
-
- //this function will construct string format for key. e.g "%016lld"
- void ConstructStrFormatForKey(char* str, int keySize) {
- str[0] = '%';
- str[1] = '0';
- sprintf(str+2, "%dlld%s", keySize, "%s");
- }
-
- unique_ptr<char []> GenerateKeyFromInt(long long v, const char* suffix = "") {
- unique_ptr<char []> keyInStr(new char[kMaxKeySize]);
- snprintf(keyInStr.get(), kMaxKeySize, keyFormat_, v, suffix);
- return keyInStr;
- }
-
- void Run() {
- PrintHeader();
- Open();
- const char* benchmarks = FLAGS_benchmarks.c_str();
- while (benchmarks != nullptr) {
- const char* sep = strchr(benchmarks, ',');
- Slice name;
- if (sep == nullptr) {
- name = benchmarks;
- benchmarks = nullptr;
- } else {
- name = Slice(benchmarks, sep - benchmarks);
- benchmarks = sep + 1;
- }
-
- // Sanitize parameters
- num_ = FLAGS_num;
- reads_ = (FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads);
- writes_ = (FLAGS_writes < 0 ? FLAGS_num : FLAGS_writes);
- value_size_ = FLAGS_value_size;
- key_size_ = FLAGS_key_size;
- ConstructStrFormatForKey(keyFormat_, key_size_);
- entries_per_batch_ = 1;
- write_options_ = WriteOptions();
- if (FLAGS_sync) {
- write_options_.sync = true;
- }
- write_options_.disableWAL = FLAGS_disable_wal;
-
- void (Benchmark::*method)(ThreadState*) = nullptr;
- bool fresh_db = false;
- int num_threads = FLAGS_threads;
-
- if (name == Slice("fillseq")) {
- fresh_db = true;
- method = &Benchmark::WriteSeq;
- } else if (name == Slice("fillbatch")) {
- fresh_db = true;
- entries_per_batch_ = 1000;
- method = &Benchmark::WriteSeq;
- } else if (name == Slice("fillrandom")) {
- fresh_db = true;
- method = &Benchmark::WriteRandom;
- } else if (name == Slice("fillfromstdin")) {
- fresh_db = true;
- method = &Benchmark::WriteFromStdin;
- } else if (name == Slice("filluniquerandom")) {
- fresh_db = true;
- if (num_threads > 1) {
- fprintf(stderr, "filluniquerandom multithreaded not supported"
- " set --threads=1");
- exit(1);
- }
- method = &Benchmark::WriteUniqueRandom;
- } else if (name == Slice("overwrite")) {
- fresh_db = false;
- method = &Benchmark::WriteRandom;
- } else if (name == Slice("fillsync")) {
- fresh_db = true;
- num_ /= 1000;
- write_options_.sync = true;
- method = &Benchmark::WriteRandom;
- } else if (name == Slice("fill100K")) {
- fresh_db = true;
- num_ /= 1000;
- value_size_ = 100 * 1000;
- method = &Benchmark::WriteRandom;
- } else if (name == Slice("readseq")) {
- method = &Benchmark::ReadSequential;
- } else if (name == Slice("readreverse")) {
- method = &Benchmark::ReadReverse;
- } else if (name == Slice("readrandom")) {
- method = &Benchmark::ReadRandom;
- } else if (name == Slice("readmissing")) {
- method = &Benchmark::ReadMissing;
- } else if (name == Slice("seekrandom")) {
- method = &Benchmark::SeekRandom;
- } else if (name == Slice("readhot")) {
- method = &Benchmark::ReadHot;
- } else if (name == Slice("readrandomsmall")) {
- reads_ /= 1000;
- method = &Benchmark::ReadRandom;
- } else if (name == Slice("prefixscanrandom")) {
- method = &Benchmark::PrefixScanRandom;
- } else if (name == Slice("deleteseq")) {
- method = &Benchmark::DeleteSeq;
- } else if (name == Slice("deleterandom")) {
- method = &Benchmark::DeleteRandom;
- } else if (name == Slice("readwhilewriting")) {
- num_threads++; // Add extra thread for writing
- method = &Benchmark::ReadWhileWriting;
- } else if (name == Slice("readrandomwriterandom")) {
- method = &Benchmark::ReadRandomWriteRandom;
- } else if (name == Slice("updaterandom")) {
- method = &Benchmark::UpdateRandom;
- } else if (name == Slice("appendrandom")) {
- method = &Benchmark::AppendRandom;
- } else if (name == Slice("mergerandom")) {
- if (FLAGS_merge_operator.empty()) {
- fprintf(stdout, "%-12s : skipped (--merge_operator is unknown)\n",
- name.ToString().c_str());
- method = nullptr;
- } else {
- method = &Benchmark::MergeRandom;
- }
- } else if (name == Slice("randomwithverify")) {
- method = &Benchmark::RandomWithVerify;
- } else if (name == Slice("compact")) {
- method = &Benchmark::Compact;
- } else if (name == Slice("crc32c")) {
- method = &Benchmark::Crc32c;
- } else if (name == Slice("acquireload")) {
- method = &Benchmark::AcquireLoad;
- } else if (name == Slice("snappycomp")) {
- method = &Benchmark::SnappyCompress;
- } else if (name == Slice("snappyuncomp")) {
- method = &Benchmark::SnappyUncompress;
- } else if (name == Slice("heapprofile")) {
- HeapProfile();
- } else if (name == Slice("stats")) {
- PrintStats("rocksdb.stats");
- } else if (name == Slice("levelstats")) {
- PrintStats("rocksdb.levelstats");
- } else if (name == Slice("sstables")) {
- PrintStats("rocksdb.sstables");
- } else {
- if (name != Slice()) { // No error message for empty name
- fprintf(stderr, "unknown benchmark '%s'\n", name.ToString().c_str());
- }
- }
-
- if (fresh_db) {
- if (FLAGS_use_existing_db) {
- fprintf(stdout, "%-12s : skipped (--use_existing_db is true)\n",
- name.ToString().c_str());
- method = nullptr;
- } else {
- delete db_;
- db_ = nullptr;
- DestroyDB(FLAGS_db, Options());
- Open();
- }
- }
-
- if (method != nullptr) {
- fprintf(stdout, "DB path: [%s]\n", FLAGS_db.c_str());
- RunBenchmark(num_threads, name, method);
- }
- }
- if (FLAGS_statistics) {
- fprintf(stdout, "STATISTICS:\n%s\n", dbstats->ToString().c_str());
- }
- }
-
- private:
- struct ThreadArg {
- Benchmark* bm;
- SharedState* shared;
- ThreadState* thread;
- void (Benchmark::*method)(ThreadState*);
- };
-
- static void ThreadBody(void* v) {
- ThreadArg* arg = reinterpret_cast<ThreadArg*>(v);
- SharedState* shared = arg->shared;
- ThreadState* thread = arg->thread;
- {
- MutexLock l(&shared->mu);
- shared->num_initialized++;
- if (shared->num_initialized >= shared->total) {
- shared->cv.SignalAll();
- }
- while (!shared->start) {
- shared->cv.Wait();
- }
- }
-
- thread->stats.Start(thread->tid);
- (arg->bm->*(arg->method))(thread);
- thread->stats.Stop();
-
- {
- MutexLock l(&shared->mu);
- shared->num_done++;
- if (shared->num_done >= shared->total) {
- shared->cv.SignalAll();
- }
- }
- }
-
- void RunBenchmark(int n, Slice name,
- void (Benchmark::*method)(ThreadState*)) {
- SharedState shared;
- shared.total = n;
- shared.num_initialized = 0;
- shared.num_done = 0;
- shared.start = false;
-
- ThreadArg* arg = new ThreadArg[n];
- for (int i = 0; i < n; i++) {
- arg[i].bm = this;
- arg[i].method = method;
- arg[i].shared = &shared;
- arg[i].thread = new ThreadState(i);
- arg[i].thread->shared = &shared;
- FLAGS_env->StartThread(ThreadBody, &arg[i]);
- }
-
- shared.mu.Lock();
- while (shared.num_initialized < n) {
- shared.cv.Wait();
- }
-
- shared.start = true;
- shared.cv.SignalAll();
- while (shared.num_done < n) {
- shared.cv.Wait();
- }
- shared.mu.Unlock();
-
- // Stats for some threads can be excluded.
- Stats merge_stats;
- for (int i = 0; i < n; i++) {
- merge_stats.Merge(arg[i].thread->stats);
- }
- merge_stats.Report(name);
-
- for (int i = 0; i < n; i++) {
- delete arg[i].thread;
- }
- delete[] arg;
- }
-
- void Crc32c(ThreadState* thread) {
- // Checksum about 500MB of data total
- const int size = 4096;
- const char* label = "(4K per op)";
- std::string data(size, 'x');
- int64_t bytes = 0;
- uint32_t crc = 0;
- while (bytes < 500 * 1048576) {
- crc = crc32c::Value(data.data(), size);
- thread->stats.FinishedSingleOp(nullptr);
- bytes += size;
- }
- // Print so result is not dead
- fprintf(stderr, "... crc=0x%x\r", static_cast<unsigned int>(crc));
-
- thread->stats.AddBytes(bytes);
- thread->stats.AddMessage(label);
- }
-
- void AcquireLoad(ThreadState* thread) {
- int dummy;
- port::AtomicPointer ap(&dummy);
- int count = 0;
- void *ptr = nullptr;
- thread->stats.AddMessage("(each op is 1000 loads)");
- while (count < 100000) {
- for (int i = 0; i < 1000; i++) {
- ptr = ap.Acquire_Load();
- }
- count++;
- thread->stats.FinishedSingleOp(nullptr);
- }
- if (ptr == nullptr) exit(1); // Disable unused variable warning.
- }
-
- void SnappyCompress(ThreadState* thread) {
- RandomGenerator gen;
- Slice input = gen.Generate(Options().block_size);
- int64_t bytes = 0;
- int64_t produced = 0;
- bool ok = true;
- std::string compressed;
- while (ok && bytes < 1024 * 1048576) { // Compress 1G
- ok = port::Snappy_Compress(Options().compression_opts, input.data(),
- input.size(), &compressed);
- produced += compressed.size();
- bytes += input.size();
- thread->stats.FinishedSingleOp(nullptr);
- }
-
- if (!ok) {
- thread->stats.AddMessage("(snappy failure)");
- } else {
- char buf[100];
- snprintf(buf, sizeof(buf), "(output: %.1f%%)",
- (produced * 100.0) / bytes);
- thread->stats.AddMessage(buf);
- thread->stats.AddBytes(bytes);
- }
- }
-
- void SnappyUncompress(ThreadState* thread) {
- RandomGenerator gen;
- Slice input = gen.Generate(Options().block_size);
- std::string compressed;
- bool ok = port::Snappy_Compress(Options().compression_opts, input.data(),
- input.size(), &compressed);
- int64_t bytes = 0;
- char* uncompressed = new char[input.size()];
- while (ok && bytes < 1024 * 1048576) { // Compress 1G
- ok = port::Snappy_Uncompress(compressed.data(), compressed.size(),
- uncompressed);
- bytes += input.size();
- thread->stats.FinishedSingleOp(nullptr);
- }
- delete[] uncompressed;
-
- if (!ok) {
- thread->stats.AddMessage("(snappy failure)");
- } else {
- thread->stats.AddBytes(bytes);
- }
- }
-
- void Open() {
- assert(db_ == nullptr);
- Options options;
- options.create_if_missing = !FLAGS_use_existing_db;
- options.block_cache = cache_;
- options.block_cache_compressed = compressed_cache_;
- if (cache_ == nullptr) {
- options.no_block_cache = true;
- }
- options.write_buffer_size = FLAGS_write_buffer_size;
- options.max_write_buffer_number = FLAGS_max_write_buffer_number;
- options.min_write_buffer_number_to_merge =
- FLAGS_min_write_buffer_number_to_merge;
- options.max_background_compactions = FLAGS_max_background_compactions;
- options.compaction_style = FLAGS_compaction_style_e;
- options.block_size = FLAGS_block_size;
- options.filter_policy = filter_policy_;
- options.prefix_extractor = FLAGS_use_prefix_blooms ? prefix_extractor_
- : nullptr;
- options.max_open_files = FLAGS_open_files;
- options.statistics = dbstats;
- options.env = FLAGS_env;
- options.disableDataSync = FLAGS_disable_data_sync;
- options.use_fsync = FLAGS_use_fsync;
- options.num_levels = FLAGS_num_levels;
- options.target_file_size_base = FLAGS_target_file_size_base;
- options.target_file_size_multiplier = FLAGS_target_file_size_multiplier;
- options.max_bytes_for_level_base = FLAGS_max_bytes_for_level_base;
- options.max_bytes_for_level_multiplier =
- FLAGS_max_bytes_for_level_multiplier;
- options.filter_deletes = FLAGS_filter_deletes;
- if ((FLAGS_prefix_size == 0) == (FLAGS_rep_factory == kPrefixHash)) {
- fprintf(stderr,
- "prefix_size should be non-zero iff memtablerep == prefix_hash\n");
- exit(1);
- }
- switch (FLAGS_rep_factory) {
- case kPrefixHash:
- options.memtable_factory.reset(
- new PrefixHashRepFactory(NewFixedPrefixTransform(FLAGS_prefix_size))
- );
- break;
- case kUnsorted:
- options.memtable_factory.reset(
- new UnsortedRepFactory
- );
- break;
- case kSkipList:
- // no need to do anything
- break;
- case kVectorRep:
- options.memtable_factory.reset(
- new VectorRepFactory
- );
- break;
- }
- if (FLAGS_max_bytes_for_level_multiplier_additional_v.size() > 0) {
- if (FLAGS_max_bytes_for_level_multiplier_additional_v.size() !=
- (unsigned int)FLAGS_num_levels) {
- fprintf(stderr, "Insufficient number of fanouts specified %d\n",
- (int)FLAGS_max_bytes_for_level_multiplier_additional_v.size());
- exit(1);
- }
- options.max_bytes_for_level_multiplier_additional =
- FLAGS_max_bytes_for_level_multiplier_additional_v;
- }
- options.level0_stop_writes_trigger = FLAGS_level0_stop_writes_trigger;
- options.level0_file_num_compaction_trigger =
- FLAGS_level0_file_num_compaction_trigger;
- options.level0_slowdown_writes_trigger =
- FLAGS_level0_slowdown_writes_trigger;
- options.compression = FLAGS_compression_type_e;
- options.WAL_ttl_seconds = FLAGS_wal_ttl_seconds;
- options.WAL_size_limit_MB = FLAGS_wal_size_limit_MB;
- if (FLAGS_min_level_to_compress >= 0) {
- assert(FLAGS_min_level_to_compress <= FLAGS_num_levels);
- options.compression_per_level.resize(FLAGS_num_levels);
- for (int i = 0; i < FLAGS_min_level_to_compress; i++) {
- options.compression_per_level[i] = kNoCompression;
- }
- for (int i = FLAGS_min_level_to_compress;
- i < FLAGS_num_levels; i++) {
- options.compression_per_level[i] = FLAGS_compression_type_e;
- }
- }
- options.disable_seek_compaction = FLAGS_disable_seek_compaction;
- options.delete_obsolete_files_period_micros =
- FLAGS_delete_obsolete_files_period_micros;
- options.soft_rate_limit = FLAGS_soft_rate_limit;
- options.hard_rate_limit = FLAGS_hard_rate_limit;
- options.rate_limit_delay_max_milliseconds =
- FLAGS_rate_limit_delay_max_milliseconds;
- options.table_cache_numshardbits = FLAGS_table_cache_numshardbits;
- options.max_grandparent_overlap_factor =
- FLAGS_max_grandparent_overlap_factor;
- options.disable_auto_compactions = FLAGS_disable_auto_compactions;
- options.source_compaction_factor = FLAGS_source_compaction_factor;
-
- // fill storage options
- options.allow_os_buffer = FLAGS_bufferedio;
- options.allow_mmap_reads = FLAGS_mmap_read;
- options.allow_mmap_writes = FLAGS_mmap_write;
- options.advise_random_on_open = FLAGS_advise_random_on_open;
- options.access_hint_on_compaction_start = FLAGS_compaction_fadvice_e;
- options.use_adaptive_mutex = FLAGS_use_adaptive_mutex;
- options.bytes_per_sync = FLAGS_bytes_per_sync;
-
- // merge operator options
- options.merge_operator = MergeOperators::CreateFromStringId(
- FLAGS_merge_operator);
- if (options.merge_operator == nullptr && !FLAGS_merge_operator.empty()) {
- fprintf(stderr, "invalid merge operator: %s\n",
- FLAGS_merge_operator.c_str());
- exit(1);
- }
-
- // set universal style compaction configurations, if applicable
- if (FLAGS_universal_size_ratio != 0) {
- options.compaction_options_universal.size_ratio =
- FLAGS_universal_size_ratio;
- }
- if (FLAGS_universal_min_merge_width != 0) {
- options.compaction_options_universal.min_merge_width =
- FLAGS_universal_min_merge_width;
- }
- if (FLAGS_universal_max_merge_width != 0) {
- options.compaction_options_universal.max_merge_width =
- FLAGS_universal_max_merge_width;
- }
- if (FLAGS_universal_max_size_amplification_percent != 0) {
- options.compaction_options_universal.max_size_amplification_percent =
- FLAGS_universal_max_size_amplification_percent;
- }
-
- Status s;
- if(FLAGS_readonly) {
- s = DB::OpenForReadOnly(options, FLAGS_db, &db_);
- } else {
- s = DB::Open(options, FLAGS_db, &db_);
- }
- if (!s.ok()) {
- fprintf(stderr, "open error: %s\n", s.ToString().c_str());
- exit(1);
- }
- if (FLAGS_min_level_to_compress >= 0) {
- options.compression_per_level.clear();
- }
- }
-
- enum WriteMode {
- RANDOM, SEQUENTIAL, UNIQUE_RANDOM
- };
-
- void WriteSeq(ThreadState* thread) {
- DoWrite(thread, SEQUENTIAL);
- }
-
- void WriteRandom(ThreadState* thread) {
- DoWrite(thread, RANDOM);
- }
-
- void WriteUniqueRandom(ThreadState* thread) {
- DoWrite(thread, UNIQUE_RANDOM);
- }
-
- void writeOrFail(WriteBatch& batch) {
- Status s = db_->Write(write_options_, &batch);
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- }
-
- void WriteFromStdin(ThreadState* thread) {
- size_t count = 0;
- WriteBatch batch;
- const size_t bufferLen = 32 << 20;
- unique_ptr<char[]> line = unique_ptr<char[]>(new char[bufferLen]);
- char* linep = line.get();
- const int batchSize = 100 << 10;
- const char columnSeparator = '\t';
- const char lineSeparator = '\n';
-
- while (fgets(linep, bufferLen, stdin) != nullptr) {
- ++count;
- char* tab = std::find(linep, linep + bufferLen, columnSeparator);
- if (tab == linep + bufferLen) {
- fprintf(stderr, "[Error] No Key delimiter TAB at line %ld\n", count);
- continue;
- }
- Slice key(linep, tab - linep);
- tab++;
- char* endLine = std::find(tab, linep + bufferLen, lineSeparator);
- if (endLine == linep + bufferLen) {
- fprintf(stderr, "[Error] No ENTER at end of line # %ld\n", count);
- continue;
- }
- Slice value(tab, endLine - tab);
- thread->stats.FinishedSingleOp(db_);
- thread->stats.AddBytes(endLine - linep - 1);
-
- if (batch.Count() < batchSize) {
- batch.Put(key, value);
- continue;
- }
- writeOrFail(batch);
- batch.Clear();
- }
- if (batch.Count() > 0) {
- writeOrFail(batch);
- }
- }
-
- void DoWrite(ThreadState* thread, WriteMode write_mode) {
- const int test_duration = write_mode == RANDOM ? FLAGS_duration : 0;
- const int num_ops = writes_ == 0 ? num_ : writes_ ;
- Duration duration(test_duration, num_ops);
- unique_ptr<BitSet> bit_set;
-
- if (write_mode == UNIQUE_RANDOM) {
- bit_set.reset(new BitSet(num_ops));
- }
-
- if (num_ != FLAGS_num) {
- char msg[100];
- snprintf(msg, sizeof(msg), "(%lld ops)", num_);
- thread->stats.AddMessage(msg);
- }
-
- RandomGenerator gen;
- WriteBatch batch;
- Status s;
- int64_t bytes = 0;
- int i = 0;
- while (!duration.Done(entries_per_batch_)) {
- batch.Clear();
- for (int j = 0; j < entries_per_batch_; j++) {
- long long k = 0;
- switch(write_mode) {
- case SEQUENTIAL:
- k = i +j;
- break;
- case RANDOM:
- k = thread->rand.Next() % FLAGS_num;
- break;
- case UNIQUE_RANDOM:
- {
- const long long t = thread->rand.Next() % FLAGS_num;
- if (!bit_set->test(t)) {
- // best case
- k = t;
- } else {
- bool found = false;
- // look forward
- for (size_t i = t + 1; i < bit_set->size(); ++i) {
- if (!bit_set->test(i)) {
- found = true;
- k = i;
- break;
- }
- }
- if (!found) {
- for (size_t i = t; i-- > 0;) {
- if (!bit_set->test(i)) {
- found = true;
- k = i;
- break;
- }
- }
- }
- }
- bit_set->set(k);
- break;
- }
- };
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- batch.Put(key.get(), gen.Generate(value_size_));
- bytes += value_size_ + strlen(key.get());
- thread->stats.FinishedSingleOp(db_);
- }
- s = db_->Write(write_options_, &batch);
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- i += entries_per_batch_;
- }
- thread->stats.AddBytes(bytes);
- }
-
- void ReadSequential(ThreadState* thread) {
- Iterator* iter = db_->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
- long long i = 0;
- int64_t bytes = 0;
- for (iter->SeekToFirst(); i < reads_ && iter->Valid(); iter->Next()) {
- bytes += iter->key().size() + iter->value().size();
- thread->stats.FinishedSingleOp(db_);
- ++i;
- }
- delete iter;
- thread->stats.AddBytes(bytes);
- }
-
- void ReadReverse(ThreadState* thread) {
- Iterator* iter = db_->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
- long long i = 0;
- int64_t bytes = 0;
- for (iter->SeekToLast(); i < reads_ && iter->Valid(); iter->Prev()) {
- bytes += iter->key().size() + iter->value().size();
- thread->stats.FinishedSingleOp(db_);
- ++i;
- }
- delete iter;
- thread->stats.AddBytes(bytes);
- }
-
- // Calls MultiGet over a list of keys from a random distribution.
- // Returns the total number of keys found.
- long MultiGetRandom(ReadOptions& options, int num_keys,
- Random64& rand, long long range, const char* suffix) {
- assert(num_keys > 0);
- std::vector<Slice> keys(num_keys);
- std::vector<std::string> values(num_keys);
- std::vector<unique_ptr<char []> > gen_keys(num_keys);
-
- int i;
- long long k;
-
- // Fill the keys vector
- for(i=0; i<num_keys; ++i) {
- k = rand.Next() % range;
- gen_keys[i] = GenerateKeyFromInt(k,suffix);
- keys[i] = gen_keys[i].get();
- }
-
- if (FLAGS_use_snapshot) {
- options.snapshot = db_->GetSnapshot();
- }
-
- // Apply the operation
- std::vector<Status> statuses = db_->MultiGet(options, keys, &values);
- assert((long)statuses.size() == num_keys);
- assert((long)keys.size() == num_keys); // Should always be the case.
- assert((long)values.size() == num_keys);
-
- if (FLAGS_use_snapshot) {
- db_->ReleaseSnapshot(options.snapshot);
- options.snapshot = nullptr;
- }
-
- // Count number found
- long found = 0;
- for(i=0; i<num_keys; ++i) {
- if (statuses[i].ok()){
- ++found;
- } else if (FLAGS_warn_missing_keys == true) {
- // Key not found, or error.
- fprintf(stderr, "get error: %s\n", statuses[i].ToString().c_str());
- }
- }
-
- return found;
- }
-
- void ReadRandom(ThreadState* thread) {
- ReadOptions options(FLAGS_verify_checksum, true);
- Duration duration(FLAGS_duration, reads_);
-
- long long found = 0;
-
- if (FLAGS_use_multiget) { // MultiGet
- const long& kpg = FLAGS_keys_per_multiget; // keys per multiget group
- long keys_left = reads_;
-
- // Recalculate number of keys per group, and call MultiGet until done
- long num_keys;
- while(num_keys = std::min(keys_left, kpg), !duration.Done(num_keys)) {
- found += MultiGetRandom(options, num_keys, thread->rand, FLAGS_num, "");
- thread->stats.FinishedSingleOp(db_);
- keys_left -= num_keys;
- }
- } else { // Regular case. Do one "get" at a time Get
- Iterator* iter = db_->NewIterator(options);
- std::string value;
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- if (FLAGS_use_snapshot) {
- options.snapshot = db_->GetSnapshot();
- }
-
- if (FLAGS_read_range < 2) {
- if (db_->Get(options, key.get(), &value).ok()) {
- found++;
- }
- } else {
- Slice skey(key.get());
- int count = 1;
-
- if (FLAGS_get_approx) {
- unique_ptr<char []> key2 =
- GenerateKeyFromInt(k + (int) FLAGS_read_range);
- Slice skey2(key2.get());
- Range range(skey, skey2);
- uint64_t sizes;
- db_->GetApproximateSizes(&range, 1, &sizes);
- }
-
- for (iter->Seek(skey);
- iter->Valid() && count <= FLAGS_read_range;
- ++count, iter->Next()) {
- found++;
- }
- }
-
- if (FLAGS_use_snapshot) {
- db_->ReleaseSnapshot(options.snapshot);
- options.snapshot = nullptr;
- }
-
- thread->stats.FinishedSingleOp(db_);
- }
-
- delete iter;
- }
-
- char msg[100];
- snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, reads_);
- thread->stats.AddMessage(msg);
- }
-
- void PrefixScanRandom(ThreadState* thread) {
- if (FLAGS_use_prefix_api) {
- assert(FLAGS_use_prefix_blooms);
- assert(FLAGS_bloom_bits >= 1);
- }
-
- ReadOptions options(FLAGS_verify_checksum, true);
- Duration duration(FLAGS_duration, reads_);
-
- long long found = 0;
-
- while (!duration.Done(1)) {
- std::string value;
- const int k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- Slice skey(key.get());
- Slice prefix = prefix_extractor_->Transform(skey);
- options.prefix = FLAGS_use_prefix_api ? &prefix : nullptr;
-
- Iterator* iter = db_->NewIterator(options);
- for (iter->Seek(skey);
- iter->Valid() && iter->key().starts_with(prefix);
- iter->Next()) {
- found++;
- }
- delete iter;
-
- thread->stats.FinishedSingleOp(db_);
- }
-
- char msg[100];
- snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, reads_);
- thread->stats.AddMessage(msg);
- }
-
- void ReadMissing(ThreadState* thread) {
- FLAGS_warn_missing_keys = false; // Never warn about missing keys
-
- Duration duration(FLAGS_duration, reads_);
- ReadOptions options(FLAGS_verify_checksum, true);
-
- if (FLAGS_use_multiget) {
- const long& kpg = FLAGS_keys_per_multiget; // keys per multiget group
- long keys_left = reads_;
-
- // Recalculate number of keys per group, and call MultiGet until done
- long num_keys;
- long found;
- while(num_keys = std::min(keys_left, kpg), !duration.Done(num_keys)) {
- found = MultiGetRandom(options, num_keys, thread->rand, FLAGS_num, ".");
-
- // We should not find any key since the key we try to get has a
- // different suffix
- if (found) {
- assert(false);
- }
-
- thread->stats.FinishedSingleOp(db_);
- keys_left -= num_keys;
- }
- } else { // Regular case (not MultiGet)
- std::string value;
- Status s;
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k, ".");
- s = db_->Get(options, key.get(), &value);
- assert(!s.ok() && s.IsNotFound());
- thread->stats.FinishedSingleOp(db_);
- }
- }
- }
-
- void ReadHot(ThreadState* thread) {
- Duration duration(FLAGS_duration, reads_);
- ReadOptions options(FLAGS_verify_checksum, true);
- const long long range = (FLAGS_num + 99) / 100;
- long long found = 0;
-
- if (FLAGS_use_multiget) {
- const long long kpg = FLAGS_keys_per_multiget; // keys per multiget group
- long long keys_left = reads_;
-
- // Recalculate number of keys per group, and call MultiGet until done
- long num_keys;
- while(num_keys = std::min(keys_left, kpg), !duration.Done(num_keys)) {
- found += MultiGetRandom(options, num_keys, thread->rand, range, "");
- thread->stats.FinishedSingleOp(db_);
- keys_left -= num_keys;
- }
- } else {
- std::string value;
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % range;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- if (db_->Get(options, key.get(), &value).ok()){
- ++found;
- }
- thread->stats.FinishedSingleOp(db_);
- }
- }
-
- char msg[100];
- snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, reads_);
- thread->stats.AddMessage(msg);
- }
-
- void SeekRandom(ThreadState* thread) {
- Duration duration(FLAGS_duration, reads_);
- ReadOptions options(FLAGS_verify_checksum, true);
- std::string value;
- long long found = 0;
- while (!duration.Done(1)) {
- Iterator* iter = db_->NewIterator(options);
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- iter->Seek(key.get());
- if (iter->Valid() && iter->key() == key.get()) found++;
- delete iter;
- thread->stats.FinishedSingleOp(db_);
- }
- char msg[100];
- snprintf(msg, sizeof(msg), "(%lld of %lld found)", found, num_);
- thread->stats.AddMessage(msg);
- }
-
- void DoDelete(ThreadState* thread, bool seq) {
- WriteBatch batch;
- Status s;
- Duration duration(seq ? 0 : FLAGS_duration, num_);
- long i = 0;
- while (!duration.Done(entries_per_batch_)) {
- batch.Clear();
- for (int j = 0; j < entries_per_batch_; j++) {
- const long long k = seq ? i+j : (thread->rand.Next() % FLAGS_num);
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- batch.Delete(key.get());
- thread->stats.FinishedSingleOp(db_);
- }
- s = db_->Write(write_options_, &batch);
- if (!s.ok()) {
- fprintf(stderr, "del error: %s\n", s.ToString().c_str());
- exit(1);
- }
- ++i;
- }
- }
-
- void DeleteSeq(ThreadState* thread) {
- DoDelete(thread, true);
- }
-
- void DeleteRandom(ThreadState* thread) {
- DoDelete(thread, false);
- }
-
- void ReadWhileWriting(ThreadState* thread) {
- if (thread->tid > 0) {
- ReadRandom(thread);
- } else {
- // Special thread that keeps writing until other threads are done.
- RandomGenerator gen;
- double last = FLAGS_env->NowMicros();
- int writes_per_second_by_10 = 0;
- int num_writes = 0;
-
- // --writes_per_second rate limit is enforced per 100 milliseconds
- // intervals to avoid a burst of writes at the start of each second.
-
- if (FLAGS_writes_per_second > 0)
- writes_per_second_by_10 = FLAGS_writes_per_second / 10;
-
- // Don't merge stats from this thread with the readers.
- thread->stats.SetExcludeFromMerge();
-
- while (true) {
- {
- MutexLock l(&thread->shared->mu);
- if (thread->shared->num_done + 1 >= thread->shared->num_initialized) {
- // Other threads have finished
- break;
- }
- }
-
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- Status s = db_->Put(write_options_, key.get(),
- gen.Generate(value_size_));
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- thread->stats.FinishedSingleOp(db_);
-
- ++num_writes;
- if (writes_per_second_by_10 && num_writes >= writes_per_second_by_10) {
- double now = FLAGS_env->NowMicros();
- double usecs_since_last = now - last;
-
- num_writes = 0;
- last = now;
-
- if (usecs_since_last < 100000.0) {
- FLAGS_env->SleepForMicroseconds(100000.0 - usecs_since_last);
- last = FLAGS_env->NowMicros();
- }
- }
- }
- }
- }
-
- // Given a key K and value V, this puts (K+"0", V), (K+"1", V), (K+"2", V)
- // in DB atomically i.e in a single batch. Also refer GetMany.
- Status PutMany(const WriteOptions& writeoptions,
- const Slice& key, const Slice& value) {
- std::string suffixes[3] = {"2", "1", "0"};
- std::string keys[3];
-
- WriteBatch batch;
- Status s;
- for (int i = 0; i < 3; i++) {
- keys[i] = key.ToString() + suffixes[i];
- batch.Put(keys[i], value);
- }
-
- s = db_->Write(writeoptions, &batch);
- return s;
- }
-
-
- // Given a key K, this deletes (K+"0", V), (K+"1", V), (K+"2", V)
- // in DB atomically i.e in a single batch. Also refer GetMany.
- Status DeleteMany(const WriteOptions& writeoptions,
- const Slice& key) {
- std::string suffixes[3] = {"1", "2", "0"};
- std::string keys[3];
-
- WriteBatch batch;
- Status s;
- for (int i = 0; i < 3; i++) {
- keys[i] = key.ToString() + suffixes[i];
- batch.Delete(keys[i]);
- }
-
- s = db_->Write(writeoptions, &batch);
- return s;
- }
-
- // Given a key K and value V, this gets values for K+"0", K+"1" and K+"2"
- // in the same snapshot, and verifies that all the values are identical.
- // ASSUMES that PutMany was used to put (K, V) into the DB.
- Status GetMany(const ReadOptions& readoptions,
- const Slice& key, std::string* value) {
- std::string suffixes[3] = {"0", "1", "2"};
- std::string keys[3];
- Slice key_slices[3];
- std::string values[3];
- ReadOptions readoptionscopy = readoptions;
- readoptionscopy.snapshot = db_->GetSnapshot();
- Status s;
- for (int i = 0; i < 3; i++) {
- keys[i] = key.ToString() + suffixes[i];
- key_slices[i] = keys[i];
- s = db_->Get(readoptionscopy, key_slices[i], value);
- if (!s.ok() && !s.IsNotFound()) {
- fprintf(stderr, "get error: %s\n", s.ToString().c_str());
- values[i] = "";
- // we continue after error rather than exiting so that we can
- // find more errors if any
- } else if (s.IsNotFound()) {
- values[i] = "";
- } else {
- values[i] = *value;
- }
- }
- db_->ReleaseSnapshot(readoptionscopy.snapshot);
-
- if ((values[0] != values[1]) || (values[1] != values[2])) {
- fprintf(stderr, "inconsistent values for key %s: %s, %s, %s\n",
- key.ToString().c_str(), values[0].c_str(), values[1].c_str(),
- values[2].c_str());
- // we continue after error rather than exiting so that we can
- // find more errors if any
- }
-
- return s;
- }
-
- // Differs from readrandomwriterandom in the following ways:
- // (a) Uses GetMany/PutMany to read/write key values. Refer to those funcs.
- // (b) Does deletes as well (per FLAGS_deletepercent)
- // (c) In order to achieve high % of 'found' during lookups, and to do
- // multiple writes (including puts and deletes) it uses upto
- // FLAGS_numdistinct distinct keys instead of FLAGS_num distinct keys.
- // (d) Does not have a MultiGet option.
- void RandomWithVerify(ThreadState* thread) {
- ReadOptions options(FLAGS_verify_checksum, true);
- RandomGenerator gen;
- std::string value;
- long long found = 0;
- int get_weight = 0;
- int put_weight = 0;
- int delete_weight = 0;
- long long gets_done = 0;
- long long puts_done = 0;
- long long deletes_done = 0;
-
- // the number of iterations is the larger of read_ or write_
- for (long long i = 0; i < readwrites_; i++) {
- const long long k = thread->rand.Next() % (FLAGS_numdistinct);
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- if (get_weight == 0 && put_weight == 0 && delete_weight == 0) {
- // one batch completed, reinitialize for next batch
- get_weight = FLAGS_readwritepercent;
- delete_weight = FLAGS_deletepercent;
- put_weight = 100 - get_weight - delete_weight;
- }
- if (get_weight > 0) {
- // do all the gets first
- Status s = GetMany(options, key.get(), &value);
- if (!s.ok() && !s.IsNotFound()) {
- fprintf(stderr, "getmany error: %s\n", s.ToString().c_str());
- // we continue after error rather than exiting so that we can
- // find more errors if any
- } else if (!s.IsNotFound()) {
- found++;
- }
- get_weight--;
- gets_done++;
- } else if (put_weight > 0) {
- // then do all the corresponding number of puts
- // for all the gets we have done earlier
- Status s = PutMany(write_options_, key.get(),
- gen.Generate(value_size_));
- if (!s.ok()) {
- fprintf(stderr, "putmany error: %s\n", s.ToString().c_str());
- exit(1);
- }
- put_weight--;
- puts_done++;
- } else if (delete_weight > 0) {
- Status s = DeleteMany(write_options_, key.get());
- if (!s.ok()) {
- fprintf(stderr, "deletemany error: %s\n", s.ToString().c_str());
- exit(1);
- }
- delete_weight--;
- deletes_done++;
- }
-
- thread->stats.FinishedSingleOp(db_);
- }
- char msg[100];
- snprintf(msg, sizeof(msg),
- "( get:%lld put:%lld del:%lld total:%lld found:%lld)",
- gets_done, puts_done, deletes_done, readwrites_, found);
- thread->stats.AddMessage(msg);
- }
-
- // This is different from ReadWhileWriting because it does not use
- // an extra thread.
- void ReadRandomWriteRandom(ThreadState* thread) {
- if (FLAGS_use_multiget){
- // Separate function for multiget (for ease of reading)
- ReadRandomWriteRandomMultiGet(thread);
- return;
- }
-
- ReadOptions options(FLAGS_verify_checksum, true);
- RandomGenerator gen;
- std::string value;
- long long found = 0;
- int get_weight = 0;
- int put_weight = 0;
- long long reads_done = 0;
- long long writes_done = 0;
- Duration duration(FLAGS_duration, readwrites_);
-
- // the number of iterations is the larger of read_ or write_
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- if (get_weight == 0 && put_weight == 0) {
- // one batch completed, reinitialize for next batch
- get_weight = FLAGS_readwritepercent;
- put_weight = 100 - get_weight;
- }
- if (get_weight > 0) {
-
- if (FLAGS_use_snapshot) {
- options.snapshot = db_->GetSnapshot();
- }
-
- if (FLAGS_get_approx) {
- char key2[100];
- snprintf(key2, sizeof(key2), "%016lld", k + 1);
- Slice skey2(key2);
- Slice skey(key2);
- Range range(skey, skey2);
- uint64_t sizes;
- db_->GetApproximateSizes(&range, 1, &sizes);
- }
-
- // do all the gets first
- Status s = db_->Get(options, key.get(), &value);
- if (!s.ok() && !s.IsNotFound()) {
- fprintf(stderr, "get error: %s\n", s.ToString().c_str());
- // we continue after error rather than exiting so that we can
- // find more errors if any
- } else if (!s.IsNotFound()) {
- found++;
- }
-
- get_weight--;
- reads_done++;
-
- if (FLAGS_use_snapshot) {
- db_->ReleaseSnapshot(options.snapshot);
- }
-
- } else if (put_weight > 0) {
- // then do all the corresponding number of puts
- // for all the gets we have done earlier
- Status s = db_->Put(write_options_, key.get(),
- gen.Generate(value_size_));
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- put_weight--;
- writes_done++;
- }
- thread->stats.FinishedSingleOp(db_);
- }
- char msg[100];
- snprintf(msg, sizeof(msg),
- "( reads:%lld writes:%lld total:%lld found:%lld)",
- reads_done, writes_done, readwrites_, found);
- thread->stats.AddMessage(msg);
- }
-
- // ReadRandomWriteRandom (with multiget)
- // Does FLAGS_keys_per_multiget reads (per multiget), followed by some puts.
- // FLAGS_readwritepercent will specify the ratio of gets to puts.
- // e.g.: If FLAGS_keys_per_multiget == 100 and FLAGS_readwritepercent == 75
- // Then each block will do 100 multigets and 33 puts
- // So there are 133 operations in-total: 100 of them (75%) are gets, and 33
- // of them (25%) are puts.
- void ReadRandomWriteRandomMultiGet(ThreadState* thread) {
- ReadOptions options(FLAGS_verify_checksum, true);
- RandomGenerator gen;
-
- // For multiget
- const long& kpg = FLAGS_keys_per_multiget; // keys per multiget group
-
- long keys_left = readwrites_; // number of keys still left to read
- long num_keys; // number of keys to read in current group
- long num_put_keys; // number of keys to put in current group
-
- long found = 0;
- long reads_done = 0;
- long writes_done = 0;
- long multigets_done = 0;
-
- // the number of iterations is the larger of read_ or write_
- Duration duration(FLAGS_duration, readwrites_);
- while(true) {
- // Read num_keys keys, then write num_put_keys keys.
- // The ratio of num_keys to num_put_keys is always FLAGS_readwritepercent
- // And num_keys is set to be FLAGS_keys_per_multiget (kpg)
- // num_put_keys is calculated accordingly (to maintain the ratio)
- // Note: On the final iteration, num_keys and num_put_keys will be smaller
- num_keys = std::min(keys_left*(FLAGS_readwritepercent + 99)/100, kpg);
- num_put_keys = num_keys * (100-FLAGS_readwritepercent)
- / FLAGS_readwritepercent;
-
- // This will break the loop when duration is complete
- if (duration.Done(num_keys + num_put_keys)) {
- break;
- }
-
- // A quick check to make sure our formula doesn't break on edge cases
- assert(num_keys >= 1);
- assert(num_keys + num_put_keys <= keys_left);
-
- // Apply the MultiGet operations
- found += MultiGetRandom(options, num_keys, thread->rand, FLAGS_num, "");
- ++multigets_done;
- reads_done+=num_keys;
- thread->stats.FinishedSingleOp(db_);
-
- // Now do the puts
- int i;
- long long k;
- for(i=0; i<num_put_keys; ++i) {
- k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
- Status s = db_->Put(write_options_, key.get(),
- gen.Generate(value_size_));
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- writes_done++;
- thread->stats.FinishedSingleOp(db_);
- }
-
- keys_left -= (num_keys + num_put_keys);
- }
- char msg[100];
- snprintf(msg, sizeof(msg),
- "( reads:%ld writes:%ld total:%lld multiget_ops:%ld found:%ld)",
- reads_done, writes_done, readwrites_, multigets_done, found);
- thread->stats.AddMessage(msg);
- }
-
- //
- // Read-modify-write for random keys
- void UpdateRandom(ThreadState* thread) {
- ReadOptions options(FLAGS_verify_checksum, true);
- RandomGenerator gen;
- std::string value;
- long long found = 0;
- Duration duration(FLAGS_duration, readwrites_);
-
- // the number of iterations is the larger of read_ or write_
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
-
- if (FLAGS_use_snapshot) {
- options.snapshot = db_->GetSnapshot();
- }
-
- if (FLAGS_get_approx) {
- char key2[100];
- snprintf(key2, sizeof(key2), "%016lld", k + 1);
- Slice skey2(key2);
- Slice skey(key2);
- Range range(skey, skey2);
- uint64_t sizes;
- db_->GetApproximateSizes(&range, 1, &sizes);
- }
-
- if (db_->Get(options, key.get(), &value).ok()) {
- found++;
- }
-
- if (FLAGS_use_snapshot) {
- db_->ReleaseSnapshot(options.snapshot);
- }
-
- Status s = db_->Put(write_options_, key.get(), gen.Generate(value_size_));
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- thread->stats.FinishedSingleOp(db_);
- }
- char msg[100];
- snprintf(msg, sizeof(msg),
- "( updates:%lld found:%lld)", readwrites_, found);
- thread->stats.AddMessage(msg);
- }
-
- // Read-modify-write for random keys.
- // Each operation causes the key grow by value_size (simulating an append).
- // Generally used for benchmarking against merges of similar type
- void AppendRandom(ThreadState* thread) {
- ReadOptions options(FLAGS_verify_checksum, true);
- RandomGenerator gen;
- std::string value;
- long found = 0;
-
- // The number of iterations is the larger of read_ or write_
- Duration duration(FLAGS_duration, readwrites_);
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
-
- if (FLAGS_use_snapshot) {
- options.snapshot = db_->GetSnapshot();
- }
-
- if (FLAGS_get_approx) {
- char key2[100];
- snprintf(key2, sizeof(key2), "%016lld", k + 1);
- Slice skey2(key2);
- Slice skey(key2);
- Range range(skey, skey2);
- uint64_t sizes;
- db_->GetApproximateSizes(&range, 1, &sizes);
- }
-
- // Get the existing value
- if (db_->Get(options, key.get(), &value).ok()) {
- found++;
- } else {
- // If not existing, then just assume an empty string of data
- value.clear();
- }
-
- if (FLAGS_use_snapshot) {
- db_->ReleaseSnapshot(options.snapshot);
- }
-
- // Update the value (by appending data)
- Slice operand = gen.Generate(value_size_);
- if (value.size() > 0) {
- // Use a delimeter to match the semantics for StringAppendOperator
- value.append(1,',');
- }
- value.append(operand.data(), operand.size());
-
- // Write back to the database
- Status s = db_->Put(write_options_, key.get(), value);
- if (!s.ok()) {
- fprintf(stderr, "put error: %s\n", s.ToString().c_str());
- exit(1);
- }
- thread->stats.FinishedSingleOp(db_);
- }
- char msg[100];
- snprintf(msg, sizeof(msg), "( updates:%lld found:%ld)", readwrites_, found);
- thread->stats.AddMessage(msg);
- }
-
- // Read-modify-write for random keys (using MergeOperator)
- // The merge operator to use should be defined by FLAGS_merge_operator
- // Adjust FLAGS_value_size so that the keys are reasonable for this operator
- // Assumes that the merge operator is non-null (i.e.: is well-defined)
- //
- // For example, use FLAGS_merge_operator="uint64add" and FLAGS_value_size=8
- // to simulate random additions over 64-bit integers using merge.
- void MergeRandom(ThreadState* thread) {
- RandomGenerator gen;
-
- // The number of iterations is the larger of read_ or write_
- Duration duration(FLAGS_duration, readwrites_);
- while (!duration.Done(1)) {
- const long long k = thread->rand.Next() % FLAGS_num;
- unique_ptr<char []> key = GenerateKeyFromInt(k);
-
- Status s = db_->Merge(write_options_, key.get(),
- gen.Generate(value_size_));
-
- if (!s.ok()) {
- fprintf(stderr, "merge error: %s\n", s.ToString().c_str());
- exit(1);
- }
- thread->stats.FinishedSingleOp(db_);
- }
-
- // Print some statistics
- char msg[100];
- snprintf(msg, sizeof(msg), "( updates:%lld)", readwrites_);
- thread->stats.AddMessage(msg);
- }
-
- void Compact(ThreadState* thread) {
- db_->CompactRange(nullptr, nullptr);
- }
-
- void PrintStats(const char* key) {
- std::string stats;
- if (!db_->GetProperty(key, &stats)) {
- stats = "(failed)";
- }
- fprintf(stdout, "\n%s\n", stats.c_str());
- }
-
- static void WriteToFile(void* arg, const char* buf, int n) {
- reinterpret_cast<WritableFile*>(arg)->Append(Slice(buf, n));
- }
-
- void HeapProfile() {
- char fname[100];
- EnvOptions soptions;
- snprintf(fname, sizeof(fname), "%s/heap-%04d", FLAGS_db.c_str(),
- ++heap_counter_);
- unique_ptr<WritableFile> file;
- Status s = FLAGS_env->NewWritableFile(fname, &file, soptions);
- if (!s.ok()) {
- fprintf(stderr, "%s\n", s.ToString().c_str());
- return;
- }
- bool ok = port::GetHeapProfile(WriteToFile, file.get());
- if (!ok) {
- fprintf(stderr, "heap profiling not supported\n");
- FLAGS_env->DeleteFile(fname);
- }
- }
-};
-
-} // namespace rocksdb
-
-
-int main(int argc, char** argv) {
- rocksdb::InstallStackTraceHandler();
- google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
- " [OPTIONS]...");
- google::ParseCommandLineFlags(&argc, &argv, true);
-
- FLAGS_compaction_style_e = (rocksdb::CompactionStyle) FLAGS_compaction_style;
- if (FLAGS_statistics) {
- dbstats = rocksdb::CreateDBStatistics();
- }
-
- std::vector<std::string> fanout =
- rocksdb::stringSplit(FLAGS_max_bytes_for_level_multiplier_additional, ',');
- for (unsigned int j= 0; j < fanout.size(); j++) {
- FLAGS_max_bytes_for_level_multiplier_additional_v.push_back(
- std::stoi(fanout[j]));
- }
-
- FLAGS_compression_type_e =
- StringToCompressionType(FLAGS_compression_type.c_str());
-
- if (!FLAGS_hdfs.empty()) {
- FLAGS_env = new rocksdb::HdfsEnv(FLAGS_hdfs);
- }
-
- if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "NONE"))
- FLAGS_compaction_fadvice_e = rocksdb::Options::NONE;
- else if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "NORMAL"))
- FLAGS_compaction_fadvice_e = rocksdb::Options::NORMAL;
- else if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "SEQUENTIAL"))
- FLAGS_compaction_fadvice_e = rocksdb::Options::SEQUENTIAL;
- else if (!strcasecmp(FLAGS_compaction_fadvice.c_str(), "WILLNEED"))
- FLAGS_compaction_fadvice_e = rocksdb::Options::WILLNEED;
- else {
- fprintf(stdout, "Unknown compaction fadvice:%s\n",
- FLAGS_compaction_fadvice.c_str());
- }
-
- FLAGS_rep_factory = StringToRepFactory(FLAGS_memtablerep.c_str());
-
- // The number of background threads should be at least as much the
- // max number of concurrent compactions.
- FLAGS_env->SetBackgroundThreads(FLAGS_max_background_compactions);
- // Choose a location for the test database if none given with --db=<path>
- if (FLAGS_db.empty()) {
- std::string default_db_path;
- rocksdb::Env::Default()->GetTestDirectory(&default_db_path);
- default_db_path += "/dbbench";
- FLAGS_db = default_db_path;
- }
-
- rocksdb::Benchmark benchmark;
- benchmark.Run();
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 Facebook.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <algorithm>
-#include <string>
-#include <stdint.h>
-#include "db/db_impl.h"
-#include "db/filename.h"
-#include "db/version_set.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-
-namespace rocksdb {
-
-Status DBImpl::DisableFileDeletions() {
- MutexLock l(&mutex_);
- disable_delete_obsolete_files_ = true;
- Log(options_.info_log, "File Deletions Disabled");
- return Status::OK();
-}
-
-Status DBImpl::EnableFileDeletions() {
- DeletionState deletion_state;
- {
- MutexLock l(&mutex_);
- disable_delete_obsolete_files_ = false;
- Log(options_.info_log, "File Deletions Enabled");
- FindObsoleteFiles(deletion_state, true);
- }
- PurgeObsoleteFiles(deletion_state);
- LogFlush(options_.info_log);
- return Status::OK();
-}
-
-Status DBImpl::GetLiveFiles(std::vector<std::string>& ret,
- uint64_t* manifest_file_size,
- bool flush_memtable) {
-
- *manifest_file_size = 0;
-
- if (flush_memtable) {
- // flush all dirty data to disk.
- Status status = Flush(FlushOptions());
- if (!status.ok()) {
- Log(options_.info_log, "Cannot Flush data %s\n",
- status.ToString().c_str());
- return status;
- }
- }
-
- MutexLock l(&mutex_);
-
- // Make a set of all of the live *.sst files
- std::set<uint64_t> live;
- versions_->AddLiveFilesCurrentVersion(&live);
-
- ret.clear();
- ret.reserve(live.size() + 2); //*.sst + CURRENT + MANIFEST
-
- // create names of the live files. The names are not absolute
- // paths, instead they are relative to dbname_;
- for (auto live_file : live) {
- ret.push_back(TableFileName("", live_file));
- }
-
- ret.push_back(CurrentFileName(""));
- ret.push_back(DescriptorFileName("", versions_->ManifestFileNumber()));
-
- // find length of manifest file while holding the mutex lock
- *manifest_file_size = versions_->ManifestFileSize();
-
- return Status::OK();
-}
-
-Status DBImpl::GetSortedWalFiles(VectorLogPtr& files) {
- // First get sorted files in archive dir, then append sorted files from main
- // dir to maintain sorted order
-
- // list wal files in archive dir.
- Status s;
- std::string archivedir = ArchivalDirectory(options_.wal_dir);
- if (env_->FileExists(archivedir)) {
- s = AppendSortedWalsOfType(archivedir, files, kArchivedLogFile);
- if (!s.ok()) {
- return s;
- }
- }
- // list wal files in main db dir.
- return AppendSortedWalsOfType(options_.wal_dir, files, kAliveLogFile);
-}
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/db_impl.h"
-
-#include <algorithm>
-#include <climits>
-#include <cstdio>
-#include <set>
-#include <stdexcept>
-#include <stdint.h>
-#include <string>
-#include <unordered_set>
-#include <vector>
-
-#include "db/builder.h"
-#include "db/dbformat.h"
-#include "db/db_iter.h"
-#include "db/filename.h"
-#include "db/log_reader.h"
-#include "db/log_writer.h"
-#include "db/memtable.h"
-#include "db/memtablelist.h"
-#include "db/merge_helper.h"
-#include "db/prefix_filter_iterator.h"
-#include "db/table_cache.h"
-#include "db/table_stats_collector.h"
-#include "db/transaction_log_impl.h"
-#include "db/version_set.h"
-#include "db/write_batch_internal.h"
-#include "port/port.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/merge_operator.h"
-#include "rocksdb/statistics.h"
-#include "rocksdb/status.h"
-#include "rocksdb/table.h"
-#include "port/port.h"
-#include "table/block.h"
-#include "table/merger.h"
-#include "table/two_level_iterator.h"
-#include "util/auto_roll_logger.h"
-#include "util/build_version.h"
-#include "util/coding.h"
-#include "util/logging.h"
-#include "util/mutexlock.h"
-#include "util/perf_context_imp.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-void dumpLeveldbBuildVersion(Logger * log);
-
-// Information kept for every waiting writer
-struct DBImpl::Writer {
- Status status;
- WriteBatch* batch;
- bool sync;
- bool disableWAL;
- bool done;
- port::CondVar cv;
-
- explicit Writer(port::Mutex* mu) : cv(mu) { }
-};
-
-struct DBImpl::CompactionState {
- Compaction* const compaction;
-
- // If there were two snapshots with seq numbers s1 and
- // s2 and s1 < s2, and if we find two instances of a key k1 then lies
- // entirely within s1 and s2, then the earlier version of k1 can be safely
- // deleted because that version is not visible in any snapshot.
- std::vector<SequenceNumber> existing_snapshots;
-
- // Files produced by compaction
- struct Output {
- uint64_t number;
- uint64_t file_size;
- InternalKey smallest, largest;
- SequenceNumber smallest_seqno, largest_seqno;
- };
- std::vector<Output> outputs;
- std::list<uint64_t> allocated_file_numbers;
-
- // State kept for output being generated
- unique_ptr<WritableFile> outfile;
- unique_ptr<TableBuilder> builder;
-
- uint64_t total_bytes;
-
- Output* current_output() { return &outputs[outputs.size()-1]; }
-
- explicit CompactionState(Compaction* c)
- : compaction(c),
- total_bytes(0) {
- }
-
- // Create a client visible context of this compaction
- CompactionFilter::Context GetFilterContext() {
- CompactionFilter::Context context;
- context.is_full_compaction = compaction->IsFullCompaction();
- return context;
- }
-};
-
-// Fix user-supplied options to be reasonable
-template <class T, class V>
-static void ClipToRange(T* ptr, V minvalue, V maxvalue) {
- if (static_cast<V>(*ptr) > maxvalue) *ptr = maxvalue;
- if (static_cast<V>(*ptr) < minvalue) *ptr = minvalue;
-}
-Options SanitizeOptions(const std::string& dbname,
- const InternalKeyComparator* icmp,
- const InternalFilterPolicy* ipolicy,
- const Options& src) {
- Options result = src;
- result.comparator = icmp;
- result.filter_policy = (src.filter_policy != nullptr) ? ipolicy : nullptr;
- ClipToRange(&result.max_open_files, 20, 1000000);
- ClipToRange(&result.write_buffer_size, ((size_t)64)<<10,
- ((size_t)64)<<30);
- ClipToRange(&result.block_size, 1<<10, 4<<20);
-
- // if user sets arena_block_size, we trust user to use this value. Otherwise,
- // calculate a proper value from writer_buffer_size;
- if (result.arena_block_size <= 0) {
- result.arena_block_size = result.write_buffer_size / 10;
- }
-
- result.min_write_buffer_number_to_merge = std::min(
- result.min_write_buffer_number_to_merge, result.max_write_buffer_number-1);
- if (result.info_log == nullptr) {
- Status s = CreateLoggerFromOptions(dbname, result.db_log_dir, src.env,
- result, &result.info_log);
- if (!s.ok()) {
- // No place suitable for logging
- result.info_log = nullptr;
- }
- }
- if (result.block_cache == nullptr && !result.no_block_cache) {
- result.block_cache = NewLRUCache(8 << 20);
- }
- result.compression_per_level = src.compression_per_level;
- if (result.block_size_deviation < 0 || result.block_size_deviation > 100) {
- result.block_size_deviation = 0;
- }
- if (result.max_mem_compaction_level >= result.num_levels) {
- result.max_mem_compaction_level = result.num_levels - 1;
- }
- if (result.soft_rate_limit > result.hard_rate_limit) {
- result.soft_rate_limit = result.hard_rate_limit;
- }
- if (result.compaction_filter) {
- Log(result.info_log, "Compaction filter specified, ignore factory");
- }
- if (result.prefix_extractor) {
- // If a prefix extractor has been supplied and a PrefixHashRepFactory is
- // being used, make sure that the latter uses the former as its transform
- // function.
- auto factory = dynamic_cast<PrefixHashRepFactory*>(
- result.memtable_factory.get());
- if (factory &&
- factory->GetTransform() != result.prefix_extractor) {
- Log(result.info_log, "A prefix hash representation factory was supplied "
- "whose prefix extractor does not match options.prefix_extractor. "
- "Falling back to skip list representation factory");
- result.memtable_factory = std::make_shared<SkipListFactory>();
- } else if (factory) {
- Log(result.info_log, "Prefix hash memtable rep is in use.");
- }
- }
-
- if (result.wal_dir.empty()) {
- // Use dbname as default
- result.wal_dir = dbname;
- }
-
- // -- Sanitize the table stats collector
- // All user defined stats collectors will be wrapped by
- // UserKeyTableStatsCollector since for them they only have the knowledge of
- // the user keys; internal keys are invisible to them.
- auto& collectors = result.table_stats_collectors;
- for (size_t i = 0; i < result.table_stats_collectors.size(); ++i) {
- assert(collectors[i]);
- collectors[i] =
- std::make_shared<UserKeyTableStatsCollector>(collectors[i]);
- }
-
- // Add collector to collect internal key statistics
- collectors.push_back(
- std::make_shared<InternalKeyStatsCollector>()
- );
-
- if (!result.flush_block_policy_factory) {
- result.SetUpDefaultFlushBlockPolicyFactory();
- }
-
- return result;
-}
-
-CompressionType GetCompressionType(const Options& options, int level,
- const bool enable_compression) {
- if (!enable_compression) {
- // disable compression
- return kNoCompression;
- }
- // If the use has specified a different compression level for each level,
- // then pick the compresison for that level.
- if (!options.compression_per_level.empty()) {
- const int n = options.compression_per_level.size() - 1;
- // It is possible for level_ to be -1; in that case, we use level
- // 0's compression. This occurs mostly in backwards compatibility
- // situations when the builder doesn't know what level the file
- // belongs to. Likewise, if level_ is beyond the end of the
- // specified compression levels, use the last value.
- return options.compression_per_level[std::max(0, std::min(level, n))];
- } else {
- return options.compression;
- }
-}
-
-DBImpl::DBImpl(const Options& options, const std::string& dbname)
- : env_(options.env),
- dbname_(dbname),
- internal_comparator_(options.comparator),
- options_(SanitizeOptions(
- dbname, &internal_comparator_, &internal_filter_policy_, options)),
- internal_filter_policy_(options.filter_policy),
- owns_info_log_(options_.info_log != options.info_log),
- db_lock_(nullptr),
- mutex_(options.use_adaptive_mutex),
- shutting_down_(nullptr),
- bg_cv_(&mutex_),
- mem_rep_factory_(options_.memtable_factory),
- mem_(new MemTable(internal_comparator_, mem_rep_factory_,
- NumberLevels(), options_)),
- logfile_number_(0),
- tmp_batch_(),
- bg_compaction_scheduled_(0),
- bg_flush_scheduled_(0),
- bg_logstats_scheduled_(false),
- manual_compaction_(nullptr),
- logger_(nullptr),
- disable_delete_obsolete_files_(false),
- delete_obsolete_files_last_run_(options.env->NowMicros()),
- purge_wal_files_last_run_(0),
- last_stats_dump_time_microsec_(0),
- default_interval_to_delete_obsolete_WAL_(600),
- stall_level0_slowdown_(0),
- stall_memtable_compaction_(0),
- stall_level0_num_files_(0),
- stall_level0_slowdown_count_(0),
- stall_memtable_compaction_count_(0),
- stall_level0_num_files_count_(0),
- started_at_(options.env->NowMicros()),
- flush_on_destroy_(false),
- stats_(options.num_levels),
- delayed_writes_(0),
- storage_options_(options),
- bg_work_gate_closed_(false),
- refitting_level_(false) {
-
- mem_->Ref();
-
- env_->GetAbsolutePath(dbname, &db_absolute_path_);
-
- stall_leveln_slowdown_.resize(options.num_levels);
- stall_leveln_slowdown_count_.resize(options.num_levels);
- for (int i = 0; i < options.num_levels; ++i) {
- stall_leveln_slowdown_[i] = 0;
- stall_leveln_slowdown_count_[i] = 0;
- }
-
- // Reserve ten files or so for other uses and give the rest to TableCache.
- const int table_cache_size = options_.max_open_files - 10;
- table_cache_.reset(new TableCache(dbname_, &options_,
- storage_options_, table_cache_size));
-
- versions_.reset(new VersionSet(dbname_, &options_, storage_options_,
- table_cache_.get(), &internal_comparator_));
-
- dumpLeveldbBuildVersion(options_.info_log.get());
- options_.Dump(options_.info_log.get());
-
- char name[100];
- Status st = env_->GetHostName(name, 100L);
- if (st.ok()) {
- host_name_ = name;
- } else {
- Log(options_.info_log, "Can't get hostname, use localhost as host name.");
- host_name_ = "localhost";
- }
- last_log_ts = 0;
-
- LogFlush(options_.info_log);
-}
-
-DBImpl::~DBImpl() {
- // Wait for background work to finish
- if (flush_on_destroy_ && mem_->GetFirstSequenceNumber() != 0) {
- FlushMemTable(FlushOptions());
- }
- mutex_.Lock();
- shutting_down_.Release_Store(this); // Any non-nullptr value is ok
- while (bg_compaction_scheduled_ ||
- bg_flush_scheduled_ ||
- bg_logstats_scheduled_) {
- bg_cv_.Wait();
- }
- mutex_.Unlock();
-
- if (db_lock_ != nullptr) {
- env_->UnlockFile(db_lock_);
- }
-
- if (mem_ != nullptr) mem_->Unref();
- imm_.UnrefAll();
- LogFlush(options_.info_log);
-}
-
-// Do not flush and close database elegantly. Simulate a crash.
-void DBImpl::TEST_Destroy_DBImpl() {
- // ensure that no new memtable flushes can occur
- flush_on_destroy_ = false;
-
- // wait till all background compactions are done.
- mutex_.Lock();
- while (bg_compaction_scheduled_ ||
- bg_flush_scheduled_ ||
- bg_logstats_scheduled_) {
- bg_cv_.Wait();
- }
-
- // Prevent new compactions from occuring.
- bg_work_gate_closed_ = true;
- const int LargeNumber = 10000000;
- bg_compaction_scheduled_ += LargeNumber;
-
- mutex_.Unlock();
- LogFlush(options_.info_log);
-
- // force release the lock file.
- if (db_lock_ != nullptr) {
- env_->UnlockFile(db_lock_);
- }
-
- log_.reset();
- versions_.reset();
- table_cache_.reset();
-}
-
-uint64_t DBImpl::TEST_Current_Manifest_FileNo() {
- return versions_->ManifestFileNumber();
-}
-
-Status DBImpl::NewDB() {
- VersionEdit new_db(NumberLevels());
- new_db.SetComparatorName(user_comparator()->Name());
- new_db.SetLogNumber(0);
- new_db.SetNextFile(2);
- new_db.SetLastSequence(0);
-
- const std::string manifest = DescriptorFileName(dbname_, 1);
- unique_ptr<WritableFile> file;
- Status s = env_->NewWritableFile(manifest, &file, storage_options_);
- if (!s.ok()) {
- return s;
- }
- file->SetPreallocationBlockSize(options_.manifest_preallocation_size);
- {
- log::Writer log(std::move(file));
- std::string record;
- new_db.EncodeTo(&record);
- s = log.AddRecord(record);
- }
- if (s.ok()) {
- // Make "CURRENT" file that points to the new manifest file.
- s = SetCurrentFile(env_, dbname_, 1);
- } else {
- env_->DeleteFile(manifest);
- }
- return s;
-}
-
-void DBImpl::MaybeIgnoreError(Status* s) const {
- if (s->ok() || options_.paranoid_checks) {
- // No change needed
- } else {
- Log(options_.info_log, "Ignoring error %s", s->ToString().c_str());
- *s = Status::OK();
- }
-}
-
-const Status DBImpl::CreateArchivalDirectory() {
- if (options_.WAL_ttl_seconds > 0 || options_.WAL_size_limit_MB > 0) {
- std::string archivalPath = ArchivalDirectory(options_.wal_dir);
- return env_->CreateDirIfMissing(archivalPath);
- }
- return Status::OK();
-}
-
-void DBImpl::PrintStatistics() {
- auto dbstats = options_.statistics;
- if (dbstats) {
- Log(options_.info_log,
- "STATISTCS:\n %s",
- dbstats->ToString().c_str());
- }
-}
-
-void DBImpl::MaybeDumpStats() {
- if (options_.stats_dump_period_sec == 0) return;
-
- const uint64_t now_micros = env_->NowMicros();
-
- if (last_stats_dump_time_microsec_ +
- options_.stats_dump_period_sec * 1000000
- <= now_micros) {
- // Multiple threads could race in here simultaneously.
- // However, the last one will update last_stats_dump_time_microsec_
- // atomically. We could see more than one dump during one dump
- // period in rare cases.
- last_stats_dump_time_microsec_ = now_micros;
- std::string stats;
- GetProperty("rocksdb.stats", &stats);
- Log(options_.info_log, "%s", stats.c_str());
- PrintStatistics();
- }
-}
-
-// Returns the list of live files in 'sst_live' and the list
-// of all files in the filesystem in 'all_files'.
-// no_full_scan = true -- never do the full scan using GetChildren()
-// force = false -- don't force the full scan, except every
-// options_.delete_obsolete_files_period_micros
-// force = true -- force the full scan
-void DBImpl::FindObsoleteFiles(DeletionState& deletion_state,
- bool force,
- bool no_full_scan) {
- mutex_.AssertHeld();
-
- // if deletion is disabled, do nothing
- if (disable_delete_obsolete_files_) {
- return;
- }
-
- bool doing_the_full_scan = false;
-
- // logic for figurint out if we're doing the full scan
- if (no_full_scan) {
- doing_the_full_scan = false;
- } else if (force || options_.delete_obsolete_files_period_micros == 0) {
- doing_the_full_scan = true;
- } else {
- const uint64_t now_micros = env_->NowMicros();
- if (delete_obsolete_files_last_run_ +
- options_.delete_obsolete_files_period_micros < now_micros) {
- doing_the_full_scan = true;
- delete_obsolete_files_last_run_ = now_micros;
- }
- }
-
- // get obsolete files
- versions_->GetObsoleteFiles(&deletion_state.sst_delete_files);
-
- // store the current filenum, lognum, etc
- deletion_state.manifest_file_number = versions_->ManifestFileNumber();
- deletion_state.log_number = versions_->LogNumber();
- deletion_state.prev_log_number = versions_->PrevLogNumber();
-
- if (!doing_the_full_scan && !deletion_state.HaveSomethingToDelete()) {
- // avoid filling up sst_live if we're sure that we
- // are not going to do the full scan and that we don't have
- // anything to delete at the moment
- return;
- }
-
- // don't delete live files
- deletion_state.sst_live.assign(pending_outputs_.begin(),
- pending_outputs_.end());
- versions_->AddLiveFiles(&deletion_state.sst_live);
-
- if (doing_the_full_scan) {
- // set of all files in the directory
- env_->GetChildren(dbname_, &deletion_state.all_files); // Ignore errors
-
- //Add log files in wal_dir
- if (options_.wal_dir != dbname_) {
- std::vector<std::string> log_files;
- env_->GetChildren(options_.wal_dir, &log_files); // Ignore errors
- deletion_state.all_files.insert(
- deletion_state.all_files.end(),
- log_files.begin(),
- log_files.end()
- );
- }
- }
-}
-
-// Diffs the files listed in filenames and those that do not
-// belong to live files are posibly removed. Also, removes all the
-// files in sst_delete_files and log_delete_files.
-// It is not necessary to hold the mutex when invoking this method.
-void DBImpl::PurgeObsoleteFiles(DeletionState& state) {
- // this checks if FindObsoleteFiles() was run before. If not, don't do
- // PurgeObsoleteFiles(). If FindObsoleteFiles() was run, we need to also
- // run PurgeObsoleteFiles(), even if disable_delete_obsolete_files_ is true
- if (state.manifest_file_number == 0) {
- return;
- }
-
- uint64_t number;
- FileType type;
- std::vector<std::string> old_log_files;
-
- // Now, convert live list to an unordered set, WITHOUT mutex held;
- // set is slow.
- std::unordered_set<uint64_t> live_set(state.sst_live.begin(),
- state.sst_live.end());
-
- state.all_files.reserve(state.all_files.size() +
- state.sst_delete_files.size());
- for (auto file : state.sst_delete_files) {
- state.all_files.push_back(TableFileName("", file->number).substr(1));
- delete file;
- }
-
- state.all_files.reserve(state.all_files.size() +
- state.log_delete_files.size());
- for (auto filenum : state.log_delete_files) {
- if (filenum > 0) {
- state.all_files.push_back(LogFileName("", filenum).substr(1));
- }
- }
-
- // dedup state.all_files so we don't try to delete the same
- // file twice
- sort(state.all_files.begin(), state.all_files.end());
- auto unique_end = unique(state.all_files.begin(), state.all_files.end());
-
- for (size_t i = 0; state.all_files.begin() + i < unique_end; i++) {
- if (ParseFileName(state.all_files[i], &number, &type)) {
- bool keep = true;
- switch (type) {
- case kLogFile:
- keep = ((number >= state.log_number) ||
- (number == state.prev_log_number));
- break;
- case kDescriptorFile:
- // Keep my manifest file, and any newer incarnations'
- // (in case there is a race that allows other incarnations)
- keep = (number >= state.manifest_file_number);
- break;
- case kTableFile:
- keep = (live_set.find(number) != live_set.end());
- break;
- case kTempFile:
- // Any temp files that are currently being written to must
- // be recorded in pending_outputs_, which is inserted into "live"
- keep = (live_set.find(number) != live_set.end());
- break;
- case kInfoLogFile:
- keep = true;
- if (number != 0) {
- old_log_files.push_back(state.all_files[i]);
- }
- break;
- case kCurrentFile:
- case kDBLockFile:
- case kIdentityFile:
- case kMetaDatabase:
- keep = true;
- break;
- }
-
- if (!keep) {
- if (type == kTableFile) {
- // evict from cache
- table_cache_->Evict(number);
- }
- std::string fname = ((type == kLogFile) ? options_.wal_dir : dbname_) +
- "/" + state.all_files[i];
- Log(options_.info_log,
- "Delete type=%d #%lu",
- int(type),
- (unsigned long)number);
-
- Status st;
- if (type == kLogFile && (options_.WAL_ttl_seconds > 0 ||
- options_.WAL_size_limit_MB > 0)) {
- st = env_->RenameFile(fname,
- ArchivedLogFileName(options_.wal_dir, number));
- if (!st.ok()) {
- Log(options_.info_log,
- "RenameFile logfile #%lu FAILED -- %s\n",
- (unsigned long)number, st.ToString().c_str());
- }
- } else {
- st = env_->DeleteFile(fname);
- if (!st.ok()) {
- Log(options_.info_log, "Delete type=%d #%lu FAILED -- %s\n",
- int(type), (unsigned long)number, st.ToString().c_str());
- }
- }
- }
- }
- }
-
- // Delete old info log files.
- size_t old_log_file_count = old_log_files.size();
- // NOTE: Currently we only support log purge when options_.db_log_dir is
- // located in `dbname` directory.
- if (old_log_file_count >= options_.keep_log_file_num &&
- options_.db_log_dir.empty()) {
- std::sort(old_log_files.begin(), old_log_files.end());
- size_t end = old_log_file_count - options_.keep_log_file_num;
- for (unsigned int i = 0; i <= end; i++) {
- std::string& to_delete = old_log_files.at(i);
- // Log(options_.info_log, "Delete type=%d %s\n",
- // int(kInfoLogFile), to_delete.c_str());
- env_->DeleteFile(dbname_ + "/" + to_delete);
- }
- }
- PurgeObsoleteWALFiles();
- LogFlush(options_.info_log);
-}
-
-void DBImpl::DeleteObsoleteFiles() {
- mutex_.AssertHeld();
- DeletionState deletion_state;
- FindObsoleteFiles(deletion_state, true);
- PurgeObsoleteFiles(deletion_state);
-}
-
-// 1. Go through all archived files and
-// a. if ttl is enabled, delete outdated files
-// b. if archive size limit is enabled, delete empty files,
-// compute file number and size.
-// 2. If size limit is enabled:
-// a. compute how many files should be deleted
-// b. get sorted non-empty archived logs
-// c. delete what should be deleted
-void DBImpl::PurgeObsoleteWALFiles() {
- bool const ttl_enabled = options_.WAL_ttl_seconds > 0;
- bool const size_limit_enabled = options_.WAL_size_limit_MB > 0;
- if (!ttl_enabled && !size_limit_enabled) {
- return;
- }
-
- int64_t current_time;
- Status s = env_->GetCurrentTime(¤t_time);
- if (!s.ok()) {
- Log(options_.info_log, "Can't get current time: %s", s.ToString().c_str());
- assert(false);
- return;
- }
- uint64_t const now_seconds = static_cast<uint64_t>(current_time);
- uint64_t const time_to_check = (ttl_enabled && !size_limit_enabled) ?
- options_.WAL_ttl_seconds / 2 : default_interval_to_delete_obsolete_WAL_;
-
- if (purge_wal_files_last_run_ + time_to_check > now_seconds) {
- return;
- }
-
- purge_wal_files_last_run_ = now_seconds;
-
- std::string archival_dir = ArchivalDirectory(options_.wal_dir);
- std::vector<std::string> files;
- s = env_->GetChildren(archival_dir, &files);
- if (!s.ok()) {
- Log(options_.info_log, "Can't get archive files: %s", s.ToString().c_str());
- assert(false);
- return;
- }
-
- size_t log_files_num = 0;
- uint64_t log_file_size = 0;
-
- for (auto& f : files) {
- uint64_t number;
- FileType type;
- if (ParseFileName(f, &number, &type) && type == kLogFile) {
- std::string const file_path = archival_dir + "/" + f;
- if (ttl_enabled) {
- uint64_t file_m_time;
- Status const s = env_->GetFileModificationTime(file_path,
- &file_m_time);
- if (!s.ok()) {
- Log(options_.info_log, "Can't get file mod time: %s: %s",
- file_path.c_str(), s.ToString().c_str());
- continue;
- }
- if (now_seconds - file_m_time > options_.WAL_ttl_seconds) {
- Status const s = env_->DeleteFile(file_path);
- if (!s.ok()) {
- Log(options_.info_log, "Can't delete file: %s: %s",
- file_path.c_str(), s.ToString().c_str());
- continue;
- }
- continue;
- }
- }
-
- if (size_limit_enabled) {
- uint64_t file_size;
- Status const s = env_->GetFileSize(file_path, &file_size);
- if (!s.ok()) {
- Log(options_.info_log, "Can't get file size: %s: %s",
- file_path.c_str(), s.ToString().c_str());
- return;
- } else {
- if (file_size > 0) {
- log_file_size = std::max(log_file_size, file_size);
- ++log_files_num;
- } else {
- Status s = env_->DeleteFile(file_path);
- if (!s.ok()) {
- Log(options_.info_log, "Can't delete file: %s: %s",
- file_path.c_str(), s.ToString().c_str());
- continue;
- }
- }
- }
- }
- }
- }
-
- if (0 == log_files_num || !size_limit_enabled) {
- return;
- }
-
- size_t const files_keep_num = options_.WAL_size_limit_MB *
- 1024 * 1024 / log_file_size;
- if (log_files_num <= files_keep_num) {
- return;
- }
-
- size_t files_del_num = log_files_num - files_keep_num;
- VectorLogPtr archived_logs;
- AppendSortedWalsOfType(archival_dir, archived_logs, kArchivedLogFile);
-
- if (files_del_num > archived_logs.size()) {
- Log(options_.info_log, "Trying to delete more archived log files than "
- "exist. Deleting all");
- files_del_num = archived_logs.size();
- }
-
- for (size_t i = 0; i < files_del_num; ++i) {
- std::string const file_path = archived_logs[i]->PathName();
- Status const s = DeleteFile(file_path);
- if (!s.ok()) {
- Log(options_.info_log, "Can't delete file: %s: %s",
- file_path.c_str(), s.ToString().c_str());
- continue;
- }
- }
-}
-
-// If externalTable is set, then apply recovered transactions
-// to that table. This is used for readonly mode.
-Status DBImpl::Recover(VersionEdit* edit, MemTable* external_table,
- bool error_if_log_file_exist) {
- mutex_.AssertHeld();
-
- assert(db_lock_ == nullptr);
- if (!external_table) {
- // We call CreateDirIfMissing() as the directory may already exist (if we
- // are reopening a DB), when this happens we don't want creating the
- // directory to cause an error. However, we need to check if creating the
- // directory fails or else we may get an obscure message about the lock
- // file not existing. One real-world example of this occurring is if
- // env->CreateDirIfMissing() doesn't create intermediate directories, e.g.
- // when dbname_ is "dir/db" but when "dir" doesn't exist.
- Status s = env_->CreateDirIfMissing(dbname_);
- if (!s.ok()) {
- return s;
- }
-
- s = env_->LockFile(LockFileName(dbname_), &db_lock_);
- if (!s.ok()) {
- return s;
- }
-
- if (!env_->FileExists(CurrentFileName(dbname_))) {
- if (options_.create_if_missing) {
- // TODO: add merge_operator name check
- s = NewDB();
- if (!s.ok()) {
- return s;
- }
- } else {
- return Status::InvalidArgument(
- dbname_, "does not exist (create_if_missing is false)");
- }
- } else {
- if (options_.error_if_exists) {
- return Status::InvalidArgument(
- dbname_, "exists (error_if_exists is true)");
- }
- }
- // Check for the IDENTITY file and create it if not there
- if (!env_->FileExists(IdentityFileName(dbname_))) {
- s = SetIdentityFile(env_, dbname_);
- if (!s.ok()) {
- return s;
- }
- }
- }
-
- Status s = versions_->Recover();
- if (s.ok()) {
- SequenceNumber max_sequence(0);
-
- // Recover from all newer log files than the ones named in the
- // descriptor (new log files may have been added by the previous
- // incarnation without registering them in the descriptor).
- //
- // Note that PrevLogNumber() is no longer used, but we pay
- // attention to it in case we are recovering a database
- // produced by an older version of rocksdb.
- const uint64_t min_log = versions_->LogNumber();
- const uint64_t prev_log = versions_->PrevLogNumber();
- std::vector<std::string> filenames;
- s = env_->GetChildren(options_.wal_dir, &filenames);
- if (!s.ok()) {
- return s;
- }
- uint64_t number;
- FileType type;
- std::vector<uint64_t> logs;
- for (size_t i = 0; i < filenames.size(); i++) {
- if (ParseFileName(filenames[i], &number, &type)
- && type == kLogFile
- && ((number >= min_log) || (number == prev_log))) {
- logs.push_back(number);
- }
- }
-
- if (logs.size() > 0 && error_if_log_file_exist) {
- return Status::Corruption(""
- "The db was opened in readonly mode with error_if_log_file_exist"
- "flag but a log file already exists");
- }
-
- // Recover in the order in which the logs were generated
- std::sort(logs.begin(), logs.end());
- for (size_t i = 0; i < logs.size(); i++) {
- s = RecoverLogFile(logs[i], edit, &max_sequence, external_table);
- // The previous incarnation may not have written any MANIFEST
- // records after allocating this log number. So we manually
- // update the file number allocation counter in VersionSet.
- versions_->MarkFileNumberUsed(logs[i]);
- }
-
- if (s.ok()) {
- if (versions_->LastSequence() < max_sequence) {
- versions_->SetLastSequence(max_sequence);
- }
- SetTickerCount(options_.statistics, SEQUENCE_NUMBER,
- versions_->LastSequence());
- }
- }
-
- return s;
-}
-
-Status DBImpl::RecoverLogFile(uint64_t log_number,
- VersionEdit* edit,
- SequenceNumber* max_sequence,
- MemTable* external_table) {
- struct LogReporter : public log::Reader::Reporter {
- Env* env;
- Logger* info_log;
- const char* fname;
- Status* status; // nullptr if options_.paranoid_checks==false or
- // options_.skip_log_error_on_recovery==true
- virtual void Corruption(size_t bytes, const Status& s) {
- Log(info_log, "%s%s: dropping %d bytes; %s",
- (this->status == nullptr ? "(ignoring error) " : ""),
- fname, static_cast<int>(bytes), s.ToString().c_str());
- if (this->status != nullptr && this->status->ok()) *this->status = s;
- }
- };
-
- mutex_.AssertHeld();
-
- // Open the log file
- std::string fname = LogFileName(options_.wal_dir, log_number);
- unique_ptr<SequentialFile> file;
- Status status = env_->NewSequentialFile(fname, &file, storage_options_);
- if (!status.ok()) {
- MaybeIgnoreError(&status);
- return status;
- }
-
- // Create the log reader.
- LogReporter reporter;
- reporter.env = env_;
- reporter.info_log = options_.info_log.get();
- reporter.fname = fname.c_str();
- reporter.status = (options_.paranoid_checks &&
- !options_.skip_log_error_on_recovery ? &status : nullptr);
- // We intentially make log::Reader do checksumming even if
- // paranoid_checks==false so that corruptions cause entire commits
- // to be skipped instead of propagating bad information (like overly
- // large sequence numbers).
- log::Reader reader(std::move(file), &reporter, true/*checksum*/,
- 0/*initial_offset*/);
- Log(options_.info_log, "Recovering log #%lu",
- (unsigned long) log_number);
-
- // Read all the records and add to a memtable
- std::string scratch;
- Slice record;
- WriteBatch batch;
- MemTable* mem = nullptr;
- if (external_table) {
- mem = external_table;
- }
- while (reader.ReadRecord(&record, &scratch) && status.ok()) {
- if (record.size() < 12) {
- reporter.Corruption(
- record.size(), Status::Corruption("log record too small"));
- continue;
- }
- WriteBatchInternal::SetContents(&batch, record);
-
- if (mem == nullptr) {
- mem = new MemTable(internal_comparator_, mem_rep_factory_,
- NumberLevels(), options_);
- mem->Ref();
- }
- status = WriteBatchInternal::InsertInto(&batch, mem, &options_);
- MaybeIgnoreError(&status);
- if (!status.ok()) {
- break;
- }
- const SequenceNumber last_seq =
- WriteBatchInternal::Sequence(&batch) +
- WriteBatchInternal::Count(&batch) - 1;
- if (last_seq > *max_sequence) {
- *max_sequence = last_seq;
- }
-
- if (!external_table &&
- mem->ApproximateMemoryUsage() > options_.write_buffer_size) {
- status = WriteLevel0TableForRecovery(mem, edit);
- if (!status.ok()) {
- // Reflect errors immediately so that conditions like full
- // file-systems cause the DB::Open() to fail.
- break;
- }
- mem->Unref();
- mem = nullptr;
- }
- }
-
- if (status.ok() && mem != nullptr && !external_table) {
- status = WriteLevel0TableForRecovery(mem, edit);
- // Reflect errors immediately so that conditions like full
- // file-systems cause the DB::Open() to fail.
- }
-
- if (mem != nullptr && !external_table) mem->Unref();
- return status;
-}
-
-Status DBImpl::WriteLevel0TableForRecovery(MemTable* mem, VersionEdit* edit) {
- mutex_.AssertHeld();
- const uint64_t start_micros = env_->NowMicros();
- FileMetaData meta;
- meta.number = versions_->NewFileNumber();
- pending_outputs_.insert(meta.number);
- Iterator* iter = mem->NewIterator();
- const SequenceNumber newest_snapshot = snapshots_.GetNewest();
- const SequenceNumber earliest_seqno_in_memtable =
- mem->GetFirstSequenceNumber();
- Log(options_.info_log, "Level-0 table #%lu: started",
- (unsigned long) meta.number);
-
- Status s;
- {
- mutex_.Unlock();
- s = BuildTable(dbname_, env_, options_, storage_options_,
- table_cache_.get(), iter, &meta,
- user_comparator(), newest_snapshot,
- earliest_seqno_in_memtable, true);
- LogFlush(options_.info_log);
- mutex_.Lock();
- }
-
- Log(options_.info_log, "Level-0 table #%lu: %lu bytes %s",
- (unsigned long) meta.number,
- (unsigned long) meta.file_size,
- s.ToString().c_str());
- delete iter;
-
- pending_outputs_.erase(meta.number);
-
- // Note that if file_size is zero, the file has been deleted and
- // should not be added to the manifest.
- int level = 0;
- if (s.ok() && meta.file_size > 0) {
- edit->AddFile(level, meta.number, meta.file_size,
- meta.smallest, meta.largest,
- meta.smallest_seqno, meta.largest_seqno);
- }
-
- CompactionStats stats;
- stats.micros = env_->NowMicros() - start_micros;
- stats.bytes_written = meta.file_size;
- stats.files_out_levelnp1 = 1;
- stats_[level].Add(stats);
- return s;
-}
-
-
-Status DBImpl::WriteLevel0Table(std::vector<MemTable*> &mems, VersionEdit* edit,
- uint64_t* filenumber) {
- mutex_.AssertHeld();
- const uint64_t start_micros = env_->NowMicros();
- FileMetaData meta;
- meta.number = versions_->NewFileNumber();
- *filenumber = meta.number;
- pending_outputs_.insert(meta.number);
-
- std::vector<Iterator*> list;
- for (MemTable* m : mems) {
- Log(options_.info_log,
- "Flushing memtable with log file: %lu\n",
- (unsigned long)m->GetLogNumber());
- list.push_back(m->NewIterator());
- }
- Iterator* iter = NewMergingIterator(&internal_comparator_, &list[0],
- list.size());
- const SequenceNumber newest_snapshot = snapshots_.GetNewest();
- const SequenceNumber earliest_seqno_in_memtable =
- mems[0]->GetFirstSequenceNumber();
- Log(options_.info_log,
- "Level-0 flush table #%lu: started",
- (unsigned long)meta.number);
-
- Version* base = versions_->current();
- base->Ref(); // it is likely that we do not need this reference
- Status s;
- {
- mutex_.Unlock();
- // We skip compression if universal compression is used and the size
- // threshold is set for compression.
- bool enable_compression = (options_.compaction_style
- != kCompactionStyleUniversal ||
- options_.compaction_options_universal.compression_size_percent < 0);
- s = BuildTable(dbname_, env_, options_, storage_options_,
- table_cache_.get(), iter, &meta,
- user_comparator(), newest_snapshot,
- earliest_seqno_in_memtable, enable_compression);
- LogFlush(options_.info_log);
- mutex_.Lock();
- }
- base->Unref();
-
- Log(options_.info_log, "Level-0 flush table #%lu: %lu bytes %s",
- (unsigned long) meta.number,
- (unsigned long) meta.file_size,
- s.ToString().c_str());
- delete iter;
-
- // re-acquire the most current version
- base = versions_->current();
-
- // There could be multiple threads writing to its own level-0 file.
- // The pending_outputs cannot be cleared here, otherwise this newly
- // created file might not be considered as a live-file by another
- // compaction thread that is concurrently deleting obselete files.
- // The pending_outputs can be cleared only after the new version is
- // committed so that other threads can recognize this file as a
- // valid one.
- // pending_outputs_.erase(meta.number);
-
- // Note that if file_size is zero, the file has been deleted and
- // should not be added to the manifest.
- int level = 0;
- if (s.ok() && meta.file_size > 0) {
- const Slice min_user_key = meta.smallest.user_key();
- const Slice max_user_key = meta.largest.user_key();
- // if we have more than 1 background thread, then we cannot
- // insert files directly into higher levels because some other
- // threads could be concurrently producing compacted files for
- // that key range.
- if (base != nullptr && options_.max_background_compactions <= 1 &&
- options_.compaction_style == kCompactionStyleLevel) {
- level = base->PickLevelForMemTableOutput(min_user_key, max_user_key);
- }
- edit->AddFile(level, meta.number, meta.file_size,
- meta.smallest, meta.largest,
- meta.smallest_seqno, meta.largest_seqno);
- }
-
- CompactionStats stats;
- stats.micros = env_->NowMicros() - start_micros;
- stats.bytes_written = meta.file_size;
- stats_[level].Add(stats);
- return s;
-}
-
-Status DBImpl::FlushMemTableToOutputFile(bool* madeProgress,
- DeletionState& deletion_state) {
- mutex_.AssertHeld();
- assert(imm_.size() != 0);
-
- if (!imm_.IsFlushPending(options_.min_write_buffer_number_to_merge)) {
- Log(options_.info_log, "FlushMemTableToOutputFile already in progress");
- Status s = Status::IOError("FlushMemTableToOutputFile already in progress");
- return s;
- }
-
- // Save the contents of the earliest memtable as a new Table
- uint64_t file_number;
- std::vector<MemTable*> mems;
- imm_.PickMemtablesToFlush(&mems);
- if (mems.empty()) {
- Log(options_.info_log, "Nothing in memstore to flush");
- Status s = Status::IOError("Nothing in memstore to flush");
- return s;
- }
-
- // record the logfile_number_ before we release the mutex
- // entries mems are (implicitly) sorted in ascending order by their created
- // time. We will use the first memtable's `edit` to keep the meta info for
- // this flush.
- MemTable* m = mems[0];
- VersionEdit* edit = m->GetEdits();
- edit->SetPrevLogNumber(0);
- // SetLogNumber(log_num) indicates logs with number smaller than log_num
- // will no longer be picked up for recovery.
- edit->SetLogNumber(
- mems.back()->GetNextLogNumber()
- );
-
- std::vector<uint64_t> logs_to_delete;
- for (auto mem : mems) {
- logs_to_delete.push_back(mem->GetLogNumber());
- }
-
- // This will release and re-acquire the mutex.
- Status s = WriteLevel0Table(mems, edit, &file_number);
-
- if (s.ok() && shutting_down_.Acquire_Load()) {
- s = Status::IOError(
- "Database shutdown started during memtable compaction"
- );
- }
-
- // Replace immutable memtable with the generated Table
- s = imm_.InstallMemtableFlushResults(
- mems, versions_.get(), s, &mutex_, options_.info_log.get(),
- file_number, pending_outputs_);
-
- if (s.ok()) {
- if (madeProgress) {
- *madeProgress = 1;
- }
-
- MaybeScheduleLogDBDeployStats();
-
- if (!disable_delete_obsolete_files_) {
- // add to deletion state
- deletion_state.log_delete_files.insert(
- deletion_state.log_delete_files.end(),
- logs_to_delete.begin(),
- logs_to_delete.end());
- }
- }
- return s;
-}
-
-void DBImpl::CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level, int target_level) {
- int max_level_with_files = 1;
- {
- MutexLock l(&mutex_);
- Version* base = versions_->current();
- for (int level = 1; level < NumberLevels(); level++) {
- if (base->OverlapInLevel(level, begin, end)) {
- max_level_with_files = level;
- }
- }
- }
- TEST_FlushMemTable(); // TODO(sanjay): Skip if memtable does not overlap
- for (int level = 0; level < max_level_with_files; level++) {
- TEST_CompactRange(level, begin, end);
- }
-
- if (reduce_level) {
- ReFitLevel(max_level_with_files, target_level);
- }
- LogFlush(options_.info_log);
-}
-
-// return the same level if it cannot be moved
-int DBImpl::FindMinimumEmptyLevelFitting(int level) {
- mutex_.AssertHeld();
- int minimum_level = level;
- for (int i = level - 1; i > 0; --i) {
- // stop if level i is not empty
- if (versions_->NumLevelFiles(i) > 0) break;
-
- // stop if level i is too small (cannot fit the level files)
- if (versions_->MaxBytesForLevel(i) < versions_->NumLevelBytes(level)) break;
-
- minimum_level = i;
- }
- return minimum_level;
-}
-
-void DBImpl::ReFitLevel(int level, int target_level) {
- assert(level < NumberLevels());
-
- MutexLock l(&mutex_);
-
- // only allow one thread refitting
- if (refitting_level_) {
- Log(options_.info_log, "ReFitLevel: another thread is refitting");
- return;
- }
- refitting_level_ = true;
-
- // wait for all background threads to stop
- bg_work_gate_closed_ = true;
- while (bg_compaction_scheduled_ > 0 || bg_flush_scheduled_) {
- Log(options_.info_log,
- "RefitLevel: waiting for background threads to stop: %d %d",
- bg_compaction_scheduled_, bg_flush_scheduled_);
- bg_cv_.Wait();
- }
-
- // move to a smaller level
- int to_level = target_level;
- if (target_level < 0) {
- to_level = FindMinimumEmptyLevelFitting(level);
- }
-
- assert(to_level <= level);
-
- if (to_level < level) {
- Log(options_.info_log, "Before refitting:\n%s",
- versions_->current()->DebugString().data());
-
- VersionEdit edit(NumberLevels());
- for (const auto& f : versions_->current()->files_[level]) {
- edit.DeleteFile(level, f->number);
- edit.AddFile(to_level, f->number, f->file_size, f->smallest, f->largest,
- f->smallest_seqno, f->largest_seqno);
- }
- Log(options_.info_log, "Apply version edit:\n%s",
- edit.DebugString().data());
-
- auto status = versions_->LogAndApply(&edit, &mutex_);
-
- Log(options_.info_log, "LogAndApply: %s\n", status.ToString().data());
-
- if (status.ok()) {
- Log(options_.info_log, "After refitting:\n%s",
- versions_->current()->DebugString().data());
- }
- }
-
- refitting_level_ = false;
- bg_work_gate_closed_ = false;
-}
-
-int DBImpl::NumberLevels() {
- return options_.num_levels;
-}
-
-int DBImpl::MaxMemCompactionLevel() {
- return options_.max_mem_compaction_level;
-}
-
-int DBImpl::Level0StopWriteTrigger() {
- return options_.level0_stop_writes_trigger;
-}
-
-Status DBImpl::Flush(const FlushOptions& options) {
- Status status = FlushMemTable(options);
- return status;
-}
-
-SequenceNumber DBImpl::GetLatestSequenceNumber() const {
- return versions_->LastSequence();
-}
-
-Status DBImpl::GetUpdatesSince(SequenceNumber seq,
- unique_ptr<TransactionLogIterator>* iter) {
-
- RecordTick(options_.statistics, GET_UPDATES_SINCE_CALLS);
- if (seq > versions_->LastSequence()) {
- return Status::IOError("Requested sequence not yet written in the db");
- }
- // Get all sorted Wal Files.
- // Do binary search and open files and find the seq number.
-
- std::unique_ptr<VectorLogPtr> wal_files(new VectorLogPtr);
- Status s = GetSortedWalFiles(*wal_files);
- if (!s.ok()) {
- return s;
- }
-
- s = RetainProbableWalFiles(*wal_files, seq);
- if (!s.ok()) {
- return s;
- }
- iter->reset(
- new TransactionLogIteratorImpl(options_.wal_dir,
- &options_,
- storage_options_,
- seq,
- std::move(wal_files),
- this));
- return (*iter)->status();
-}
-
-Status DBImpl::RetainProbableWalFiles(VectorLogPtr& all_logs,
- const SequenceNumber target) {
- long start = 0; // signed to avoid overflow when target is < first file.
- long end = static_cast<long>(all_logs.size()) - 1;
- // Binary Search. avoid opening all files.
- while (end >= start) {
- long mid = start + (end - start) / 2; // Avoid overflow.
- SequenceNumber current_seq_num = all_logs.at(mid)->StartSequence();
- if (current_seq_num == target) {
- end = mid;
- break;
- } else if (current_seq_num < target) {
- start = mid + 1;
- } else {
- end = mid - 1;
- }
- }
- size_t start_index = std::max(0l, end); // end could be -ve.
- // The last wal file is always included
- all_logs.erase(all_logs.begin(), all_logs.begin() + start_index);
- return Status::OK();
-}
-
-bool DBImpl::CheckWalFileExistsAndEmpty(const WalFileType type,
- const uint64_t number) {
- const std::string fname = (type == kAliveLogFile) ?
- LogFileName(options_.wal_dir, number) :
- ArchivedLogFileName(options_.wal_dir, number);
- uint64_t file_size;
- Status s = env_->GetFileSize(fname, &file_size);
- return (s.ok() && (file_size == 0));
-}
-
-Status DBImpl::ReadFirstRecord(const WalFileType type, const uint64_t number,
- WriteBatch* const result) {
-
- if (type == kAliveLogFile) {
- std::string fname = LogFileName(options_.wal_dir, number);
- Status status = ReadFirstLine(fname, result);
- if (!status.ok()) {
- // check if the file got moved to archive.
- std::string archived_file =
- ArchivedLogFileName(options_.wal_dir, number);
- Status s = ReadFirstLine(archived_file, result);
- if (!s.ok()) {
- return Status::IOError("Log File has been deleted: " + archived_file);
- }
- }
- return Status::OK();
- } else if (type == kArchivedLogFile) {
- std::string fname = ArchivedLogFileName(options_.wal_dir, number);
- Status status = ReadFirstLine(fname, result);
- return status;
- }
- return Status::NotSupported("File Type Not Known: " + std::to_string(type));
-}
-
-Status DBImpl::ReadFirstLine(const std::string& fname,
- WriteBatch* const batch) {
- struct LogReporter : public log::Reader::Reporter {
- Env* env;
- Logger* info_log;
- const char* fname;
- Status* status; // nullptr if options_.paranoid_checks==false
- virtual void Corruption(size_t bytes, const Status& s) {
- Log(info_log, "%s%s: dropping %d bytes; %s",
- (this->status == nullptr ? "(ignoring error) " : ""),
- fname, static_cast<int>(bytes), s.ToString().c_str());
- if (this->status != nullptr && this->status->ok()) *this->status = s;
- }
- };
-
- unique_ptr<SequentialFile> file;
- Status status = env_->NewSequentialFile(fname, &file, storage_options_);
-
- if (!status.ok()) {
- return status;
- }
-
-
- LogReporter reporter;
- reporter.env = env_;
- reporter.info_log = options_.info_log.get();
- reporter.fname = fname.c_str();
- reporter.status = (options_.paranoid_checks ? &status : nullptr);
- log::Reader reader(std::move(file), &reporter, true/*checksum*/,
- 0/*initial_offset*/);
- std::string scratch;
- Slice record;
-
- if (reader.ReadRecord(&record, &scratch) && status.ok()) {
- if (record.size() < 12) {
- reporter.Corruption(
- record.size(), Status::Corruption("log record too small"));
- return Status::IOError("Corruption noted");
- // TODO read record's till the first no corrupt entry?
- }
- WriteBatchInternal::SetContents(batch, record);
- return Status::OK();
- }
- return Status::IOError("Error reading from file " + fname);
-}
-
-struct CompareLogByPointer {
- bool operator() (const unique_ptr<LogFile>& a,
- const unique_ptr<LogFile>& b) {
- LogFileImpl* a_impl = dynamic_cast<LogFileImpl*>(a.get());
- LogFileImpl* b_impl = dynamic_cast<LogFileImpl*>(b.get());
- return *a_impl < *b_impl;
- }
-};
-
-Status DBImpl::AppendSortedWalsOfType(const std::string& path,
- VectorLogPtr& log_files, WalFileType log_type) {
- std::vector<std::string> all_files;
- const Status status = env_->GetChildren(path, &all_files);
- if (!status.ok()) {
- return status;
- }
- log_files.reserve(log_files.size() + all_files.size());
- VectorLogPtr::iterator pos_start;
- if (!log_files.empty()) {
- pos_start = log_files.end() - 1;
- } else {
- pos_start = log_files.begin();
- }
- for (const auto& f : all_files) {
- uint64_t number;
- FileType type;
- if (ParseFileName(f, &number, &type) && type == kLogFile){
-
- WriteBatch batch;
- Status s = ReadFirstRecord(log_type, number, &batch);
- if (!s.ok()) {
- if (CheckWalFileExistsAndEmpty(log_type, number)) {
- continue;
- }
- return s;
- }
-
- uint64_t size_bytes;
- s = env_->GetFileSize(LogFileName(path, number), &size_bytes);
- if (!s.ok()) {
- return s;
- }
-
- log_files.push_back(std::move(unique_ptr<LogFile>(new LogFileImpl(
- number, log_type, WriteBatchInternal::Sequence(&batch), size_bytes))));
- }
- }
- CompareLogByPointer compare_log_files;
- std::sort(pos_start, log_files.end(), compare_log_files);
- return status;
-}
-
-void DBImpl::TEST_CompactRange(int level, const Slice* begin,const Slice* end) {
- assert(level >= 0);
-
- InternalKey begin_storage, end_storage;
-
- ManualCompaction manual;
- manual.level = level;
- manual.done = false;
- manual.in_progress = false;
- // For universal compaction, we enforce every manual compaction to compact
- // all files.
- if (begin == nullptr ||
- options_.compaction_style == kCompactionStyleUniversal) {
- manual.begin = nullptr;
- } else {
- begin_storage = InternalKey(*begin, kMaxSequenceNumber, kValueTypeForSeek);
- manual.begin = &begin_storage;
- }
- if (end == nullptr ||
- options_.compaction_style == kCompactionStyleUniversal) {
- manual.end = nullptr;
- } else {
- end_storage = InternalKey(*end, 0, static_cast<ValueType>(0));
- manual.end = &end_storage;
- }
-
- MutexLock l(&mutex_);
-
- // When a manual compaction arrives, temporarily throttle down
- // the number of background compaction threads to 1. This is
- // needed to ensure that this manual compaction can compact
- // any range of keys/files. We artificialy increase
- // bg_compaction_scheduled_ by a large number, this causes
- // the system to have a single background thread. Now,
- // this manual compaction can progress without stomping
- // on any other concurrent compactions.
- const int LargeNumber = 10000000;
- const int newvalue = options_.max_background_compactions-1;
- bg_compaction_scheduled_ += LargeNumber;
- while (bg_compaction_scheduled_ > LargeNumber) {
- Log(options_.info_log, "Manual compaction request waiting for background threads to fall below 1");
- bg_cv_.Wait();
- }
- Log(options_.info_log, "Manual compaction starting");
-
- while (!manual.done) {
- while (manual_compaction_ != nullptr) {
- bg_cv_.Wait();
- }
- manual_compaction_ = &manual;
- if (bg_compaction_scheduled_ == LargeNumber) {
- bg_compaction_scheduled_ = newvalue;
- }
- MaybeScheduleFlushOrCompaction();
- while (manual_compaction_ == &manual) {
- bg_cv_.Wait();
- }
- }
- assert(!manual.in_progress);
-
- // wait till there are no background threads scheduled
- bg_compaction_scheduled_ += LargeNumber;
- while (bg_compaction_scheduled_ > LargeNumber + newvalue) {
- Log(options_.info_log, "Manual compaction resetting background threads");
- bg_cv_.Wait();
- }
- bg_compaction_scheduled_ = 0;
-}
-
-Status DBImpl::FlushMemTable(const FlushOptions& options) {
- // nullptr batch means just wait for earlier writes to be done
- Status s = Write(WriteOptions(), nullptr);
- if (s.ok() && options.wait) {
- // Wait until the compaction completes
- s = WaitForFlushMemTable();
- }
- return s;
-}
-
-Status DBImpl::WaitForFlushMemTable() {
- Status s;
- // Wait until the compaction completes
- MutexLock l(&mutex_);
- while (imm_.size() > 0 && bg_error_.ok()) {
- bg_cv_.Wait();
- }
- if (imm_.size() != 0) {
- s = bg_error_;
- }
- return s;
-}
-
-Status DBImpl::TEST_FlushMemTable() {
- return FlushMemTable(FlushOptions());
-}
-
-Status DBImpl::TEST_WaitForFlushMemTable() {
- return WaitForFlushMemTable();
-}
-
-Status DBImpl::TEST_WaitForCompact() {
- // Wait until the compaction completes
-
- // TODO: a bug here. This function actually does not necessarily
- // wait for compact. It actually waits for scheduled compaction
- // OR flush to finish.
-
- MutexLock l(&mutex_);
- while ((bg_compaction_scheduled_ || bg_flush_scheduled_) &&
- bg_error_.ok()) {
- bg_cv_.Wait();
- }
- return bg_error_;
-}
-
-void DBImpl::MaybeScheduleFlushOrCompaction() {
- mutex_.AssertHeld();
- if (bg_work_gate_closed_) {
- // gate closed for backgrond work
- } else if (shutting_down_.Acquire_Load()) {
- // DB is being deleted; no more background compactions
- } else {
- bool is_flush_pending =
- imm_.IsFlushPending(options_.min_write_buffer_number_to_merge);
- if (is_flush_pending &&
- (bg_flush_scheduled_ < options_.max_background_flushes)) {
- // memtable flush needed
- bg_flush_scheduled_++;
- env_->Schedule(&DBImpl::BGWorkFlush, this, Env::Priority::HIGH);
- }
-
- if ((manual_compaction_ ||
- versions_->NeedsCompaction() ||
- (is_flush_pending && (options_.max_background_flushes <= 0))) &&
- bg_compaction_scheduled_ < options_.max_background_compactions) {
- // compaction needed, or memtable flush needed but HIGH pool not enabled.
- bg_compaction_scheduled_++;
- env_->Schedule(&DBImpl::BGWorkCompaction, this, Env::Priority::LOW);
- }
- }
-}
-
-void DBImpl::BGWorkFlush(void* db) {
- reinterpret_cast<DBImpl*>(db)->BackgroundCallFlush();
-}
-
-void DBImpl::BGWorkCompaction(void* db) {
- reinterpret_cast<DBImpl*>(db)->BackgroundCallCompaction();
-}
-
-Status DBImpl::BackgroundFlush(bool* madeProgress,
- DeletionState& deletion_state) {
- Status stat;
- while (stat.ok() &&
- imm_.IsFlushPending(options_.min_write_buffer_number_to_merge)) {
- Log(options_.info_log,
- "BackgroundCallFlush doing FlushMemTableToOutputFile, flush slots available %d",
- options_.max_background_flushes - bg_flush_scheduled_);
- stat = FlushMemTableToOutputFile(madeProgress, deletion_state);
- }
- return stat;
-}
-
-void DBImpl::BackgroundCallFlush() {
- bool madeProgress = false;
- DeletionState deletion_state;
- assert(bg_flush_scheduled_);
- MutexLock l(&mutex_);
-
- Status s;
- if (!shutting_down_.Acquire_Load()) {
- s = BackgroundFlush(&madeProgress, deletion_state);
- if (!s.ok()) {
- // Wait a little bit before retrying background compaction in
- // case this is an environmental problem and we do not want to
- // chew up resources for failed compactions for the duration of
- // the problem.
- bg_cv_.SignalAll(); // In case a waiter can proceed despite the error
- Log(options_.info_log, "Waiting after background flush error: %s",
- s.ToString().c_str());
- mutex_.Unlock();
- LogFlush(options_.info_log);
- env_->SleepForMicroseconds(1000000);
- mutex_.Lock();
- }
- }
-
- // If !s.ok(), this means that Flush failed. In that case, we want
- // to delete all obsolete files and we force FindObsoleteFiles()
- FindObsoleteFiles(deletion_state, !s.ok());
- // delete unnecessary files if any, this is done outside the mutex
- if (deletion_state.HaveSomethingToDelete()) {
- mutex_.Unlock();
- PurgeObsoleteFiles(deletion_state);
- mutex_.Lock();
- }
-
- bg_flush_scheduled_--;
- if (madeProgress) {
- MaybeScheduleFlushOrCompaction();
- }
- bg_cv_.SignalAll();
-}
-
-
-void DBImpl::TEST_PurgeObsoleteteWAL() {
- PurgeObsoleteWALFiles();
-}
-
-void DBImpl::BackgroundCallCompaction() {
- bool madeProgress = false;
- DeletionState deletion_state;
-
- MaybeDumpStats();
-
- MutexLock l(&mutex_);
- // Log(options_.info_log, "XXX BG Thread %llx process new work item", pthread_self());
- assert(bg_compaction_scheduled_);
- Status s;
- if (!shutting_down_.Acquire_Load()) {
- s = BackgroundCompaction(&madeProgress, deletion_state);
- if (!s.ok()) {
- // Wait a little bit before retrying background compaction in
- // case this is an environmental problem and we do not want to
- // chew up resources for failed compactions for the duration of
- // the problem.
- bg_cv_.SignalAll(); // In case a waiter can proceed despite the error
- Log(options_.info_log, "Waiting after background compaction error: %s",
- s.ToString().c_str());
- mutex_.Unlock();
- LogFlush(options_.info_log);
- env_->SleepForMicroseconds(1000000);
- mutex_.Lock();
- }
- }
-
- // If !s.ok(), this means that Compaction failed. In that case, we want
- // to delete all obsolete files we might have created and we force
- // FindObsoleteFiles(). This is because deletion_state does not catch
- // all created files if compaction failed.
- FindObsoleteFiles(deletion_state, !s.ok());
- // delete unnecessary files if any, this is done outside the mutex
- if (deletion_state.HaveSomethingToDelete()) {
- mutex_.Unlock();
- PurgeObsoleteFiles(deletion_state);
- mutex_.Lock();
- }
-
- bg_compaction_scheduled_--;
-
- MaybeScheduleLogDBDeployStats();
-
- // Previous compaction may have produced too many files in a level,
- // So reschedule another compaction if we made progress in the
- // last compaction.
- if (madeProgress) {
- MaybeScheduleFlushOrCompaction();
- }
- bg_cv_.SignalAll();
-
-}
-
-Status DBImpl::BackgroundCompaction(bool* madeProgress,
- DeletionState& deletion_state) {
- *madeProgress = false;
- mutex_.AssertHeld();
-
- // TODO: remove memtable flush from formal compaction
- while (imm_.IsFlushPending(options_.min_write_buffer_number_to_merge)) {
- Log(options_.info_log,
- "BackgroundCompaction doing FlushMemTableToOutputFile, compaction slots "
- "available %d",
- options_.max_background_compactions - bg_compaction_scheduled_);
- Status stat = FlushMemTableToOutputFile(madeProgress, deletion_state);
- if (!stat.ok()) {
- return stat;
- }
- }
-
- unique_ptr<Compaction> c;
- bool is_manual = (manual_compaction_ != nullptr) &&
- (manual_compaction_->in_progress == false);
- InternalKey manual_end;
- if (is_manual) {
- ManualCompaction* m = manual_compaction_;
- assert(!m->in_progress);
- m->in_progress = true; // another thread cannot pick up the same work
- c.reset(versions_->CompactRange(m->level, m->begin, m->end));
- if (c) {
- manual_end = c->input(0, c->num_input_files(0) - 1)->largest;
- } else {
- m->done = true;
- }
- Log(options_.info_log,
- "Manual compaction at level-%d from %s .. %s; will stop at %s\n",
- m->level,
- (m->begin ? m->begin->DebugString().c_str() : "(begin)"),
- (m->end ? m->end->DebugString().c_str() : "(end)"),
- (m->done ? "(end)" : manual_end.DebugString().c_str()));
- } else if (!options_.disable_auto_compactions) {
- c.reset(versions_->PickCompaction());
- }
-
- Status status;
- if (!c) {
- // Nothing to do
- Log(options_.info_log, "Compaction nothing to do");
- } else if (!is_manual && c->IsTrivialMove()) {
- // Move file to next level
- assert(c->num_input_files(0) == 1);
- FileMetaData* f = c->input(0, 0);
- c->edit()->DeleteFile(c->level(), f->number);
- c->edit()->AddFile(c->level() + 1, f->number, f->file_size,
- f->smallest, f->largest,
- f->smallest_seqno, f->largest_seqno);
- status = versions_->LogAndApply(c->edit(), &mutex_);
- VersionSet::LevelSummaryStorage tmp;
- Log(options_.info_log, "Moved #%lld to level-%d %lld bytes %s: %s\n",
- static_cast<unsigned long long>(f->number),
- c->level() + 1,
- static_cast<unsigned long long>(f->file_size),
- status.ToString().c_str(),
- versions_->LevelSummary(&tmp));
- versions_->ReleaseCompactionFiles(c.get(), status);
- *madeProgress = true;
- } else {
- MaybeScheduleFlushOrCompaction(); // do more compaction work in parallel.
- CompactionState* compact = new CompactionState(c.get());
- status = DoCompactionWork(compact, deletion_state);
- CleanupCompaction(compact, status);
- versions_->ReleaseCompactionFiles(c.get(), status);
- c->ReleaseInputs();
- *madeProgress = true;
- }
- c.reset();
-
- if (status.ok()) {
- // Done
- } else if (shutting_down_.Acquire_Load()) {
- // Ignore compaction errors found during shutting down
- } else {
- Log(options_.info_log,
- "Compaction error: %s", status.ToString().c_str());
- if (options_.paranoid_checks && bg_error_.ok()) {
- bg_error_ = status;
- }
- }
-
- if (is_manual) {
- ManualCompaction* m = manual_compaction_;
- if (!status.ok()) {
- m->done = true;
- }
- // For universal compaction:
- // Because universal compaction always happens at level 0, so one
- // compaction will pick up all overlapped files. No files will be
- // filtered out due to size limit and left for a successive compaction.
- // So we can safely conclude the current compaction.
- //
- // Also note that, if we don't stop here, then the current compaction
- // writes a new file back to level 0, which will be used in successive
- // compaction. Hence the manual compaction will never finish.
- if (options_.compaction_style == kCompactionStyleUniversal) {
- m->done = true;
- }
- if (!m->done) {
- // We only compacted part of the requested range. Update *m
- // to the range that is left to be compacted.
- m->tmp_storage = manual_end;
- m->begin = &m->tmp_storage;
- }
- m->in_progress = false; // not being processed anymore
- manual_compaction_ = nullptr;
- }
- return status;
-}
-
-void DBImpl::CleanupCompaction(CompactionState* compact, Status status) {
- mutex_.AssertHeld();
- if (compact->builder != nullptr) {
- // May happen if we get a shutdown call in the middle of compaction
- compact->builder->Abandon();
- compact->builder.reset();
- } else {
- assert(compact->outfile == nullptr);
- }
- for (size_t i = 0; i < compact->outputs.size(); i++) {
- const CompactionState::Output& out = compact->outputs[i];
- pending_outputs_.erase(out.number);
-
- // If this file was inserted into the table cache then remove
- // them here because this compaction was not committed.
- if (!status.ok()) {
- table_cache_->Evict(out.number);
- }
- }
- delete compact;
-}
-
-// Allocate the file numbers for the output file. We allocate as
-// many output file numbers as there are files in level+1.
-// Insert them into pending_outputs so that they do not get deleted.
-void DBImpl::AllocateCompactionOutputFileNumbers(CompactionState* compact) {
- mutex_.AssertHeld();
- assert(compact != nullptr);
- assert(compact->builder == nullptr);
- int filesNeeded = compact->compaction->num_input_files(1);
- for (int i = 0; i < filesNeeded; i++) {
- uint64_t file_number = versions_->NewFileNumber();
- pending_outputs_.insert(file_number);
- compact->allocated_file_numbers.push_back(file_number);
- }
-}
-
-// Frees up unused file number.
-void DBImpl::ReleaseCompactionUnusedFileNumbers(CompactionState* compact) {
- mutex_.AssertHeld();
- for (const auto file_number : compact->allocated_file_numbers) {
- pending_outputs_.erase(file_number);
- // Log(options_.info_log, "XXX releasing unused file num %d", file_number);
- }
-}
-
-Status DBImpl::OpenCompactionOutputFile(CompactionState* compact) {
- assert(compact != nullptr);
- assert(compact->builder == nullptr);
- uint64_t file_number;
- // If we have not yet exhausted the pre-allocated file numbers,
- // then use the one from the front. Otherwise, we have to acquire
- // the heavyweight lock and allocate a new file number.
- if (!compact->allocated_file_numbers.empty()) {
- file_number = compact->allocated_file_numbers.front();
- compact->allocated_file_numbers.pop_front();
- } else {
- mutex_.Lock();
- file_number = versions_->NewFileNumber();
- pending_outputs_.insert(file_number);
- mutex_.Unlock();
- }
- CompactionState::Output out;
- out.number = file_number;
- out.smallest.Clear();
- out.largest.Clear();
- out.smallest_seqno = out.largest_seqno = 0;
- compact->outputs.push_back(out);
-
- // Make the output file
- std::string fname = TableFileName(dbname_, file_number);
- Status s = env_->NewWritableFile(fname, &compact->outfile, storage_options_);
-
- if (s.ok()) {
- // Over-estimate slightly so we don't end up just barely crossing
- // the threshold.
- compact->outfile->SetPreallocationBlockSize(
- 1.1 * versions_->MaxFileSizeForLevel(compact->compaction->output_level()));
-
- CompressionType compression_type = GetCompressionType(
- options_, compact->compaction->output_level(),
- compact->compaction->enable_compression());
-
- compact->builder.reset(
- GetTableBuilder(options_, compact->outfile.get(), compression_type));
- }
- LogFlush(options_.info_log);
- return s;
-}
-
-Status DBImpl::FinishCompactionOutputFile(CompactionState* compact,
- Iterator* input) {
- assert(compact != nullptr);
- assert(compact->outfile);
- assert(compact->builder != nullptr);
-
- const uint64_t output_number = compact->current_output()->number;
- assert(output_number != 0);
-
- // Check for iterator errors
- Status s = input->status();
- const uint64_t current_entries = compact->builder->NumEntries();
- if (s.ok()) {
- s = compact->builder->Finish();
- } else {
- compact->builder->Abandon();
- }
- const uint64_t current_bytes = compact->builder->FileSize();
- compact->current_output()->file_size = current_bytes;
- compact->total_bytes += current_bytes;
- compact->builder.reset();
-
- // Finish and check for file errors
- if (s.ok() && !options_.disableDataSync) {
- if (options_.use_fsync) {
- StopWatch sw(env_, options_.statistics, COMPACTION_OUTFILE_SYNC_MICROS);
- s = compact->outfile->Fsync();
- } else {
- StopWatch sw(env_, options_.statistics, COMPACTION_OUTFILE_SYNC_MICROS);
- s = compact->outfile->Sync();
- }
- }
- if (s.ok()) {
- s = compact->outfile->Close();
- }
- compact->outfile.reset();
-
- if (s.ok() && current_entries > 0) {
- // Verify that the table is usable
- Iterator* iter = table_cache_->NewIterator(ReadOptions(),
- storage_options_,
- output_number,
- current_bytes);
- s = iter->status();
- delete iter;
- if (s.ok()) {
- Log(options_.info_log,
- "Generated table #%lu: %lu keys, %lu bytes",
- (unsigned long) output_number,
- (unsigned long) current_entries,
- (unsigned long) current_bytes);
- }
- }
- return s;
-}
-
-
-Status DBImpl::InstallCompactionResults(CompactionState* compact) {
- mutex_.AssertHeld();
-
- // paranoia: verify that the files that we started with
- // still exist in the current version and in the same original level.
- // This ensures that a concurrent compaction did not erroneously
- // pick the same files to compact.
- if (!versions_->VerifyCompactionFileConsistency(compact->compaction)) {
- Log(options_.info_log, "Compaction %d@%d + %d@%d files aborted",
- compact->compaction->num_input_files(0),
- compact->compaction->level(),
- compact->compaction->num_input_files(1),
- compact->compaction->level() + 1);
- return Status::IOError("Compaction input files inconsistent");
- }
-
- Log(options_.info_log, "Compacted %d@%d + %d@%d files => %lld bytes",
- compact->compaction->num_input_files(0),
- compact->compaction->level(),
- compact->compaction->num_input_files(1),
- compact->compaction->level() + 1,
- static_cast<long long>(compact->total_bytes));
-
- // Add compaction outputs
- compact->compaction->AddInputDeletions(compact->compaction->edit());
- const int level = compact->compaction->level();
- for (size_t i = 0; i < compact->outputs.size(); i++) {
- const CompactionState::Output& out = compact->outputs[i];
- compact->compaction->edit()->AddFile(
- (options_.compaction_style == kCompactionStyleUniversal) ?
- level : level + 1,
- out.number, out.file_size, out.smallest, out.largest,
- out.smallest_seqno, out.largest_seqno);
- }
- return versions_->LogAndApply(compact->compaction->edit(), &mutex_);
-}
-
-//
-// Given a sequence number, return the sequence number of the
-// earliest snapshot that this sequence number is visible in.
-// The snapshots themselves are arranged in ascending order of
-// sequence numbers.
-// Employ a sequential search because the total number of
-// snapshots are typically small.
-inline SequenceNumber DBImpl::findEarliestVisibleSnapshot(
- SequenceNumber in, std::vector<SequenceNumber>& snapshots,
- SequenceNumber* prev_snapshot) {
- SequenceNumber prev __attribute__((unused)) = 0;
- for (const auto cur : snapshots) {
- assert(prev <= cur);
- if (cur >= in) {
- *prev_snapshot = prev;
- return cur;
- }
- prev = cur; // assignment
- assert(prev);
- }
- Log(options_.info_log,
- "Looking for seqid %lu but maxseqid is %lu",
- (unsigned long)in,
- (unsigned long)snapshots[snapshots.size()-1]);
- assert(0);
- return 0;
-}
-
-Status DBImpl::DoCompactionWork(CompactionState* compact,
- DeletionState& deletion_state) {
- assert(compact);
- int64_t imm_micros = 0; // Micros spent doing imm_ compactions
- Log(options_.info_log,
- "Compacting %d@%d + %d@%d files, score %.2f slots available %d",
- compact->compaction->num_input_files(0),
- compact->compaction->level(),
- compact->compaction->num_input_files(1),
- compact->compaction->level() + 1,
- compact->compaction->score(),
- options_.max_background_compactions - bg_compaction_scheduled_);
- char scratch[256];
- compact->compaction->Summary(scratch, sizeof(scratch));
- Log(options_.info_log, "Compaction start summary: %s\n", scratch);
-
- assert(versions_->NumLevelFiles(compact->compaction->level()) > 0);
- assert(compact->builder == nullptr);
- assert(!compact->outfile);
-
- SequenceNumber visible_at_tip = 0;
- SequenceNumber earliest_snapshot;
- SequenceNumber latest_snapshot = 0;
- snapshots_.getAll(compact->existing_snapshots);
- if (compact->existing_snapshots.size() == 0) {
- // optimize for fast path if there are no snapshots
- visible_at_tip = versions_->LastSequence();
- earliest_snapshot = visible_at_tip;
- } else {
- latest_snapshot = compact->existing_snapshots.back();
- // Add the current seqno as the 'latest' virtual
- // snapshot to the end of this list.
- compact->existing_snapshots.push_back(versions_->LastSequence());
- earliest_snapshot = compact->existing_snapshots[0];
- }
-
- // Is this compaction producing files at the bottommost level?
- bool bottommost_level = compact->compaction->BottomMostLevel();
-
- // Allocate the output file numbers before we release the lock
- AllocateCompactionOutputFileNumbers(compact);
-
- // Release mutex while we're actually doing the compaction work
- mutex_.Unlock();
-
- const uint64_t start_micros = env_->NowMicros();
- unique_ptr<Iterator> input(versions_->MakeInputIterator(compact->compaction));
- input->SeekToFirst();
- Status status;
- ParsedInternalKey ikey;
- std::string current_user_key;
- bool has_current_user_key = false;
- SequenceNumber last_sequence_for_key __attribute__((unused)) =
- kMaxSequenceNumber;
- SequenceNumber visible_in_snapshot = kMaxSequenceNumber;
- std::string compaction_filter_value;
- std::vector<char> delete_key; // for compaction filter
- MergeHelper merge(user_comparator(), options_.merge_operator.get(),
- options_.info_log.get(),
- false /* internal key corruption is expected */);
- auto compaction_filter = options_.compaction_filter;
- std::unique_ptr<CompactionFilter> compaction_filter_from_factory = nullptr;
- if (!compaction_filter) {
- auto context = compact->GetFilterContext();
- compaction_filter_from_factory =
- options_.compaction_filter_factory->CreateCompactionFilter(context);
- compaction_filter = compaction_filter_from_factory.get();
- }
-
- for (; input->Valid() && !shutting_down_.Acquire_Load(); ) {
- // Prioritize immutable compaction work
- // TODO: remove memtable flush from normal compaction work
- if (imm_.imm_flush_needed.NoBarrier_Load() != nullptr) {
- const uint64_t imm_start = env_->NowMicros();
- LogFlush(options_.info_log);
- mutex_.Lock();
- if (imm_.IsFlushPending(options_.min_write_buffer_number_to_merge)) {
- FlushMemTableToOutputFile(nullptr, deletion_state);
- bg_cv_.SignalAll(); // Wakeup MakeRoomForWrite() if necessary
- }
- mutex_.Unlock();
- imm_micros += (env_->NowMicros() - imm_start);
- }
-
- Slice key = input->key();
- Slice value = input->value();
-
- if (compact->compaction->ShouldStopBefore(key) &&
- compact->builder != nullptr) {
- status = FinishCompactionOutputFile(compact, input.get());
- if (!status.ok()) {
- break;
- }
- }
-
- // Handle key/value, add to state, etc.
- bool drop = false;
- bool current_entry_is_merging = false;
- if (!ParseInternalKey(key, &ikey)) {
- // Do not hide error keys
- // TODO: error key stays in db forever? Figure out the intention/rationale
- // v10 error v8 : we cannot hide v8 even though it's pretty obvious.
- current_user_key.clear();
- has_current_user_key = false;
- last_sequence_for_key = kMaxSequenceNumber;
- visible_in_snapshot = kMaxSequenceNumber;
- } else {
- if (!has_current_user_key ||
- user_comparator()->Compare(ikey.user_key,
- Slice(current_user_key)) != 0) {
- // First occurrence of this user key
- current_user_key.assign(ikey.user_key.data(), ikey.user_key.size());
- has_current_user_key = true;
- last_sequence_for_key = kMaxSequenceNumber;
- visible_in_snapshot = kMaxSequenceNumber;
-
- // apply the compaction filter to the first occurrence of the user key
- if (compaction_filter &&
- ikey.type == kTypeValue &&
- (visible_at_tip || ikey.sequence > latest_snapshot)) {
- // If the user has specified a compaction filter and the sequence
- // number is greater than any external snapshot, then invoke the
- // filter.
- // If the return value of the compaction filter is true, replace
- // the entry with a delete marker.
- bool value_changed = false;
- compaction_filter_value.clear();
- bool to_delete =
- compaction_filter->Filter(compact->compaction->level(),
- ikey.user_key, value,
- &compaction_filter_value,
- &value_changed);
- if (to_delete) {
- // make a copy of the original key
- delete_key.assign(key.data(), key.data() + key.size());
- // convert it to a delete
- UpdateInternalKey(&delete_key[0], delete_key.size(),
- ikey.sequence, kTypeDeletion);
- // anchor the key again
- key = Slice(&delete_key[0], delete_key.size());
- // needed because ikey is backed by key
- ParseInternalKey(key, &ikey);
- // no value associated with delete
- value.clear();
- RecordTick(options_.statistics, COMPACTION_KEY_DROP_USER);
- } else if (value_changed) {
- value = compaction_filter_value;
- }
- }
-
- }
-
- // If there are no snapshots, then this kv affect visibility at tip.
- // Otherwise, search though all existing snapshots to find
- // the earlist snapshot that is affected by this kv.
- SequenceNumber prev_snapshot = 0; // 0 means no previous snapshot
- SequenceNumber visible = visible_at_tip ?
- visible_at_tip :
- findEarliestVisibleSnapshot(ikey.sequence,
- compact->existing_snapshots,
- &prev_snapshot);
-
- if (visible_in_snapshot == visible) {
- // If the earliest snapshot is which this key is visible in
- // is the same as the visibily of a previous instance of the
- // same key, then this kv is not visible in any snapshot.
- // Hidden by an newer entry for same user key
- // TODO: why not > ?
- assert(last_sequence_for_key >= ikey.sequence);
- drop = true; // (A)
- RecordTick(options_.statistics, COMPACTION_KEY_DROP_NEWER_ENTRY);
- } else if (ikey.type == kTypeDeletion &&
- ikey.sequence <= earliest_snapshot &&
- compact->compaction->IsBaseLevelForKey(ikey.user_key)) {
- // For this user key:
- // (1) there is no data in higher levels
- // (2) data in lower levels will have larger sequence numbers
- // (3) data in layers that are being compacted here and have
- // smaller sequence numbers will be dropped in the next
- // few iterations of this loop (by rule (A) above).
- // Therefore this deletion marker is obsolete and can be dropped.
- drop = true;
- RecordTick(options_.statistics, COMPACTION_KEY_DROP_OBSOLETE);
- } else if (ikey.type == kTypeMerge) {
- // We know the merge type entry is not hidden, otherwise we would
- // have hit (A)
- // We encapsulate the merge related state machine in a different
- // object to minimize change to the existing flow. Turn out this
- // logic could also be nicely re-used for memtable flush purge
- // optimization in BuildTable.
- merge.MergeUntil(input.get(), prev_snapshot, bottommost_level,
- options_.statistics);
- current_entry_is_merging = true;
- if (merge.IsSuccess()) {
- // Successfully found Put/Delete/(end-of-key-range) while merging
- // Get the merge result
- key = merge.key();
- ParseInternalKey(key, &ikey);
- value = merge.value();
- } else {
- // Did not find a Put/Delete/(end-of-key-range) while merging
- // We now have some stack of merge operands to write out.
- // NOTE: key,value, and ikey are now referring to old entries.
- // These will be correctly set below.
- assert(!merge.keys().empty());
- assert(merge.keys().size() == merge.values().size());
-
- // Hack to make sure last_sequence_for_key is correct
- ParseInternalKey(merge.keys().front(), &ikey);
- }
- }
-
- last_sequence_for_key = ikey.sequence;
- visible_in_snapshot = visible;
- }
-#if 0
- Log(options_.info_log,
- " Compact: %s, seq %d, type: %d %d, drop: %d, is_base: %d, "
- "%d smallest_snapshot: %d level: %d bottommost %d",
- ikey.user_key.ToString().c_str(),
- (int)ikey.sequence, ikey.type, kTypeValue, drop,
- compact->compaction->IsBaseLevelForKey(ikey.user_key),
- (int)last_sequence_for_key, (int)earliest_snapshot,
- compact->compaction->level(), bottommost_level);
-#endif
-
- if (!drop) {
- // We may write a single key (e.g.: for Put/Delete or successful merge).
- // Or we may instead have to write a sequence/list of keys.
- // We have to write a sequence iff we have an unsuccessful merge
- bool has_merge_list = current_entry_is_merging && !merge.IsSuccess();
- const std::deque<std::string>* keys = nullptr;
- const std::deque<std::string>* values = nullptr;
- std::deque<std::string>::const_reverse_iterator key_iter;
- std::deque<std::string>::const_reverse_iterator value_iter;
- if (has_merge_list) {
- keys = &merge.keys();
- values = &merge.values();
- key_iter = keys->rbegin(); // The back (*rbegin()) is the first key
- value_iter = values->rbegin();
-
- key = Slice(*key_iter);
- value = Slice(*value_iter);
- }
-
- // If we have a list of keys to write, traverse the list.
- // If we have a single key to write, simply write that key.
- while (true) {
- // Invariant: key,value,ikey will always be the next entry to write
- char* kptr = (char*)key.data();
- std::string kstr;
-
- // Zeroing out the sequence number leads to better compression.
- // If this is the bottommost level (no files in lower levels)
- // and the earliest snapshot is larger than this seqno
- // then we can squash the seqno to zero.
- if (options_.compaction_style == kCompactionStyleLevel &&
- bottommost_level && ikey.sequence < earliest_snapshot &&
- ikey.type != kTypeMerge) {
- assert(ikey.type != kTypeDeletion);
- // make a copy because updating in place would cause problems
- // with the priority queue that is managing the input key iterator
- kstr.assign(key.data(), key.size());
- kptr = (char *)kstr.c_str();
- UpdateInternalKey(kptr, key.size(), (uint64_t)0, ikey.type);
- }
-
- Slice newkey(kptr, key.size());
- assert((key.clear(), 1)); // we do not need 'key' anymore
-
- // Open output file if necessary
- if (compact->builder == nullptr) {
- status = OpenCompactionOutputFile(compact);
- if (!status.ok()) {
- break;
- }
- }
-
- SequenceNumber seqno = GetInternalKeySeqno(newkey);
- if (compact->builder->NumEntries() == 0) {
- compact->current_output()->smallest.DecodeFrom(newkey);
- compact->current_output()->smallest_seqno = seqno;
- } else {
- compact->current_output()->smallest_seqno =
- std::min(compact->current_output()->smallest_seqno, seqno);
- }
- compact->current_output()->largest.DecodeFrom(newkey);
- compact->builder->Add(newkey, value);
- compact->current_output()->largest_seqno =
- std::max(compact->current_output()->largest_seqno, seqno);
-
- // Close output file if it is big enough
- if (compact->builder->FileSize() >=
- compact->compaction->MaxOutputFileSize()) {
- status = FinishCompactionOutputFile(compact, input.get());
- if (!status.ok()) {
- break;
- }
- }
-
- // If we have a list of entries, move to next element
- // If we only had one entry, then break the loop.
- if (has_merge_list) {
- ++key_iter;
- ++value_iter;
-
- // If at end of list
- if (key_iter == keys->rend() || value_iter == values->rend()) {
- // Sanity Check: if one ends, then both end
- assert(key_iter == keys->rend() && value_iter == values->rend());
- break;
- }
-
- // Otherwise not at end of list. Update key, value, and ikey.
- key = Slice(*key_iter);
- value = Slice(*value_iter);
- ParseInternalKey(key, &ikey);
-
- } else{
- // Only had one item to begin with (Put/Delete)
- break;
- }
- }
- }
-
- // MergeUntil has moved input to the next entry
- if (!current_entry_is_merging) {
- input->Next();
- }
- }
-
- if (status.ok() && shutting_down_.Acquire_Load()) {
- status = Status::IOError("Database shutdown started during compaction");
- }
- if (status.ok() && compact->builder != nullptr) {
- status = FinishCompactionOutputFile(compact, input.get());
- }
- if (status.ok()) {
- status = input->status();
- }
- input.reset();
-
- CompactionStats stats;
- stats.micros = env_->NowMicros() - start_micros - imm_micros;
- if (options_.statistics) {
- options_.statistics->measureTime(COMPACTION_TIME, stats.micros);
- }
- stats.files_in_leveln = compact->compaction->num_input_files(0);
- stats.files_in_levelnp1 = compact->compaction->num_input_files(1);
-
- int num_output_files = compact->outputs.size();
- if (compact->builder != nullptr) {
- // An error occured so ignore the last output.
- assert(num_output_files > 0);
- --num_output_files;
- }
- stats.files_out_levelnp1 = num_output_files;
-
- for (int i = 0; i < compact->compaction->num_input_files(0); i++)
- stats.bytes_readn += compact->compaction->input(0, i)->file_size;
-
- for (int i = 0; i < compact->compaction->num_input_files(1); i++)
- stats.bytes_readnp1 += compact->compaction->input(1, i)->file_size;
-
- for (int i = 0; i < num_output_files; i++) {
- stats.bytes_written += compact->outputs[i].file_size;
- }
-
- LogFlush(options_.info_log);
- mutex_.Lock();
- stats_[compact->compaction->output_level()].Add(stats);
-
- // if there were any unused file number (mostly in case of
- // compaction error), free up the entry from pending_putputs
- ReleaseCompactionUnusedFileNumbers(compact);
-
- if (status.ok()) {
- status = InstallCompactionResults(compact);
- }
- VersionSet::LevelSummaryStorage tmp;
- Log(options_.info_log,
- "compacted to: %s, %.1f MB/sec, level %d, files in(%d, %d) out(%d) "
- "MB in(%.1f, %.1f) out(%.1f), read-write-amplify(%.1f) "
- "write-amplify(%.1f) %s\n",
- versions_->LevelSummary(&tmp),
- (stats.bytes_readn + stats.bytes_readnp1 + stats.bytes_written) /
- (double) stats.micros,
- compact->compaction->output_level(),
- stats.files_in_leveln, stats.files_in_levelnp1, stats.files_out_levelnp1,
- stats.bytes_readn / 1048576.0,
- stats.bytes_readnp1 / 1048576.0,
- stats.bytes_written / 1048576.0,
- (stats.bytes_written + stats.bytes_readnp1 + stats.bytes_readn) /
- (double) stats.bytes_readn,
- stats.bytes_written / (double) stats.bytes_readn,
- status.ToString().c_str());
-
- return status;
-}
-
-namespace {
-struct IterState {
- port::Mutex* mu;
- Version* version;
- std::vector<MemTable*> mem; // includes both mem_ and imm_
- DBImpl *db;
-};
-
-static void CleanupIteratorState(void* arg1, void* arg2) {
- IterState* state = reinterpret_cast<IterState*>(arg1);
- state->mu->Lock();
- for (unsigned int i = 0; i < state->mem.size(); i++) {
- state->mem[i]->Unref();
- }
- state->version->Unref();
- // delete only the sst obsolete files
- DBImpl::DeletionState deletion_state;
- // fast path FindObsoleteFiles
- state->db->FindObsoleteFiles(deletion_state, false, true);
- state->mu->Unlock();
- state->db->PurgeObsoleteFiles(deletion_state);
- delete state;
-}
-} // namespace
-
-Iterator* DBImpl::NewInternalIterator(const ReadOptions& options,
- SequenceNumber* latest_snapshot) {
- IterState* cleanup = new IterState;
- mutex_.Lock();
- *latest_snapshot = versions_->LastSequence();
-
- // Collect together all needed child iterators for mem
- std::vector<Iterator*> list;
- mem_->Ref();
- list.push_back(mem_->NewIterator(options));
-
- cleanup->mem.push_back(mem_);
-
- // Collect together all needed child iterators for imm_
- std::vector<MemTable*> immutables;
- imm_.GetMemTables(&immutables);
- for (unsigned int i = 0; i < immutables.size(); i++) {
- MemTable* m = immutables[i];
- m->Ref();
- list.push_back(m->NewIterator(options));
- cleanup->mem.push_back(m);
- }
-
- // Collect iterators for files in L0 - Ln
- versions_->current()->AddIterators(options, storage_options_, &list);
- Iterator* internal_iter =
- NewMergingIterator(&internal_comparator_, &list[0], list.size());
- versions_->current()->Ref();
-
- cleanup->mu = &mutex_;
- cleanup->db = this;
- cleanup->version = versions_->current();
- internal_iter->RegisterCleanup(CleanupIteratorState, cleanup, nullptr);
-
- mutex_.Unlock();
- LogFlush(options_.info_log);
- return internal_iter;
-}
-
-Iterator* DBImpl::TEST_NewInternalIterator() {
- SequenceNumber ignored;
- return NewInternalIterator(ReadOptions(), &ignored);
-}
-
-int64_t DBImpl::TEST_MaxNextLevelOverlappingBytes() {
- MutexLock l(&mutex_);
- return versions_->MaxNextLevelOverlappingBytes();
-}
-
-Status DBImpl::Get(const ReadOptions& options,
- const Slice& key,
- std::string* value) {
- return GetImpl(options, key, value);
-}
-
-Status DBImpl::GetImpl(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found) {
- Status s;
-
- StopWatch sw(env_, options_.statistics, DB_GET);
- SequenceNumber snapshot;
- mutex_.Lock();
- if (options.snapshot != nullptr) {
- snapshot = reinterpret_cast<const SnapshotImpl*>(options.snapshot)->number_;
- } else {
- snapshot = versions_->LastSequence();
- }
-
- MemTable* mem = mem_;
- MemTableList imm = imm_;
- Version* current = versions_->current();
- mem->Ref();
- imm.RefAll();
- current->Ref();
-
- // Unlock while reading from files and memtables
- mutex_.Unlock();
- bool have_stat_update = false;
- Version::GetStats stats;
-
-
- // Prepare to store a list of merge operations if merge occurs.
- std::deque<std::string> merge_operands;
-
- // First look in the memtable, then in the immutable memtable (if any).
- // s is both in/out. When in, s could either be OK or MergeInProgress.
- // merge_operands will contain the sequence of merges in the latter case.
- LookupKey lkey(key, snapshot);
- if (mem->Get(lkey, value, &s, &merge_operands, options_)) {
- // Done
- } else if (imm.Get(lkey, value, &s, &merge_operands, options_)) {
- // Done
- } else {
- current->Get(options, lkey, value, &s, &merge_operands, &stats,
- options_, value_found);
- have_stat_update = true;
- }
- mutex_.Lock();
-
- if (!options_.disable_seek_compaction &&
- have_stat_update && current->UpdateStats(stats)) {
- MaybeScheduleFlushOrCompaction();
- }
- mem->Unref();
- imm.UnrefAll();
- current->Unref();
- mutex_.Unlock();
-
- LogFlush(options_.info_log);
- // Note, tickers are atomic now - no lock protection needed any more.
- RecordTick(options_.statistics, NUMBER_KEYS_READ);
- RecordTick(options_.statistics, BYTES_READ, value->size());
- return s;
-}
-
-std::vector<Status> DBImpl::MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values) {
-
- StopWatch sw(env_, options_.statistics, DB_MULTIGET);
- SequenceNumber snapshot;
- mutex_.Lock();
- if (options.snapshot != nullptr) {
- snapshot = reinterpret_cast<const SnapshotImpl*>(options.snapshot)->number_;
- } else {
- snapshot = versions_->LastSequence();
- }
-
- MemTable* mem = mem_;
- MemTableList imm = imm_;
- Version* current = versions_->current();
- mem->Ref();
- imm.RefAll();
- current->Ref();
-
- // Unlock while reading from files and memtables
-
- mutex_.Unlock();
- bool have_stat_update = false;
- Version::GetStats stats;
-
- // Prepare to store a list of merge operations if merge occurs.
- std::deque<std::string> merge_operands;
-
- // Note: this always resizes the values array
- int numKeys = keys.size();
- std::vector<Status> statList(numKeys);
- values->resize(numKeys);
-
- // Keep track of bytes that we read for statistics-recording later
- uint64_t bytesRead = 0;
-
- // For each of the given keys, apply the entire "get" process as follows:
- // First look in the memtable, then in the immutable memtable (if any).
- // s is both in/out. When in, s could either be OK or MergeInProgress.
- // merge_operands will contain the sequence of merges in the latter case.
- for (int i=0; i<numKeys; ++i) {
- merge_operands.clear();
- Status& s = statList[i];
- std::string* value = &(*values)[i];
-
- LookupKey lkey(keys[i], snapshot);
- if (mem->Get(lkey, value, &s, &merge_operands, options_)) {
- // Done
- } else if (imm.Get(lkey, value, &s, &merge_operands, options_)) {
- // Done
- } else {
- current->Get(options, lkey, value, &s, &merge_operands, &stats, options_);
- have_stat_update = true;
- }
-
- if (s.ok()) {
- bytesRead += value->size();
- }
- }
-
- // Post processing (decrement reference counts and record statistics)
- mutex_.Lock();
- if (!options_.disable_seek_compaction &&
- have_stat_update && current->UpdateStats(stats)) {
- MaybeScheduleFlushOrCompaction();
- }
- mem->Unref();
- imm.UnrefAll();
- current->Unref();
- mutex_.Unlock();
-
- LogFlush(options_.info_log);
- RecordTick(options_.statistics, NUMBER_MULTIGET_CALLS);
- RecordTick(options_.statistics, NUMBER_MULTIGET_KEYS_READ, numKeys);
- RecordTick(options_.statistics, NUMBER_MULTIGET_BYTES_READ, bytesRead);
-
- return statList;
-}
-
-bool DBImpl::KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found) {
- if (value_found != nullptr) {
- *value_found = true; // falsify later if key-may-exist but can't fetch value
- }
- ReadOptions roptions = options;
- roptions.read_tier = kBlockCacheTier; // read from block cache only
- return GetImpl(roptions, key, value, value_found).ok();
-}
-
-Iterator* DBImpl::NewIterator(const ReadOptions& options) {
- SequenceNumber latest_snapshot;
- Iterator* iter = NewInternalIterator(options, &latest_snapshot);
- iter = NewDBIterator(
- &dbname_, env_, options_, user_comparator(), iter,
- (options.snapshot != nullptr
- ? reinterpret_cast<const SnapshotImpl*>(options.snapshot)->number_
- : latest_snapshot));
- if (options.prefix) {
- // use extra wrapper to exclude any keys from the results which
- // don't begin with the prefix
- iter = new PrefixFilterIterator(iter, *options.prefix,
- options_.prefix_extractor);
- }
- return iter;
-}
-
-const Snapshot* DBImpl::GetSnapshot() {
- MutexLock l(&mutex_);
- return snapshots_.New(versions_->LastSequence());
-}
-
-void DBImpl::ReleaseSnapshot(const Snapshot* s) {
- MutexLock l(&mutex_);
- snapshots_.Delete(reinterpret_cast<const SnapshotImpl*>(s));
-}
-
-// Convenience methods
-Status DBImpl::Put(const WriteOptions& o, const Slice& key, const Slice& val) {
- return DB::Put(o, key, val);
-}
-
-Status DBImpl::Merge(const WriteOptions& o, const Slice& key,
- const Slice& val) {
- if (!options_.merge_operator) {
- return Status::NotSupported("Provide a merge_operator when opening DB");
- } else {
- return DB::Merge(o, key, val);
- }
-}
-
-Status DBImpl::Delete(const WriteOptions& options, const Slice& key) {
- return DB::Delete(options, key);
-}
-
-Status DBImpl::Write(const WriteOptions& options, WriteBatch* my_batch) {
- Writer w(&mutex_);
- w.batch = my_batch;
- w.sync = options.sync;
- w.disableWAL = options.disableWAL;
- w.done = false;
-
- StopWatch sw(env_, options_.statistics, DB_WRITE);
- MutexLock l(&mutex_);
- writers_.push_back(&w);
- while (!w.done && &w != writers_.front()) {
- w.cv.Wait();
- }
- if (w.done) {
- return w.status;
- }
-
- // May temporarily unlock and wait.
- Status status = MakeRoomForWrite(my_batch == nullptr);
- uint64_t last_sequence = versions_->LastSequence();
- Writer* last_writer = &w;
- if (status.ok() && my_batch != nullptr) { // nullptr batch is for compactions
- // TODO: BuildBatchGroup physically concatenate/copy all write batches into
- // a new one. Mem copy is done with the lock held. Ideally, we only need
- // the lock to obtain the last_writer and the references to all batches.
- // Creation (copy) of the merged batch could have been done outside of the
- // lock protected region.
- WriteBatch* updates = BuildBatchGroup(&last_writer);
-
- // Add to log and apply to memtable. We can release the lock
- // during this phase since &w is currently responsible for logging
- // and protects against concurrent loggers and concurrent writes
- // into mem_.
- {
- mutex_.Unlock();
- const SequenceNumber current_sequence = last_sequence + 1;
- WriteBatchInternal::SetSequence(updates, current_sequence);
- int my_batch_count = WriteBatchInternal::Count(updates);
- last_sequence += my_batch_count;
- // Record statistics
- RecordTick(options_.statistics, NUMBER_KEYS_WRITTEN, my_batch_count);
- RecordTick(options_.statistics,
- BYTES_WRITTEN,
- WriteBatchInternal::ByteSize(updates));
- if (options.disableWAL) {
- flush_on_destroy_ = true;
- }
-
- if (!options.disableWAL) {
- StopWatchNano timer(env_);
- StartPerfTimer(&timer);
- status = log_->AddRecord(WriteBatchInternal::Contents(updates));
- BumpPerfTime(&perf_context.wal_write_time, &timer);
- if (status.ok() && options.sync) {
- if (options_.use_fsync) {
- StopWatch(env_, options_.statistics, WAL_FILE_SYNC_MICROS);
- status = log_->file()->Fsync();
- } else {
- StopWatch(env_, options_.statistics, WAL_FILE_SYNC_MICROS);
- status = log_->file()->Sync();
- }
- }
- }
- if (status.ok()) {
- status = WriteBatchInternal::InsertInto(updates, mem_, &options_, this,
- options_.filter_deletes);
- if (!status.ok()) {
- // Panic for in-memory corruptions
- // Note that existing logic was not sound. Any partial failure writing
- // into the memtable would result in a state that some write ops might
- // have succeeded in memtable but Status reports error for all writes.
- throw std::runtime_error("In memory WriteBatch corruption!");
- }
- SetTickerCount(options_.statistics, SEQUENCE_NUMBER, last_sequence);
- }
- LogFlush(options_.info_log);
- mutex_.Lock();
- if (status.ok()) {
- versions_->SetLastSequence(last_sequence);
- }
- }
- if (updates == &tmp_batch_) tmp_batch_.Clear();
- }
- if (options_.paranoid_checks && !status.ok() && bg_error_.ok()) {
- bg_error_ = status; // stop compaction & fail any further writes
- }
-
- while (true) {
- Writer* ready = writers_.front();
- writers_.pop_front();
- if (ready != &w) {
- ready->status = status;
- ready->done = true;
- ready->cv.Signal();
- }
- if (ready == last_writer) break;
- }
-
- // Notify new head of write queue
- if (!writers_.empty()) {
- writers_.front()->cv.Signal();
- }
- return status;
-}
-
-// REQUIRES: Writer list must be non-empty
-// REQUIRES: First writer must have a non-nullptr batch
-WriteBatch* DBImpl::BuildBatchGroup(Writer** last_writer) {
- assert(!writers_.empty());
- Writer* first = writers_.front();
- WriteBatch* result = first->batch;
- assert(result != nullptr);
-
- size_t size = WriteBatchInternal::ByteSize(first->batch);
-
- // Allow the group to grow up to a maximum size, but if the
- // original write is small, limit the growth so we do not slow
- // down the small write too much.
- size_t max_size = 1 << 20;
- if (size <= (128<<10)) {
- max_size = size + (128<<10);
- }
-
- *last_writer = first;
- std::deque<Writer*>::iterator iter = writers_.begin();
- ++iter; // Advance past "first"
- for (; iter != writers_.end(); ++iter) {
- Writer* w = *iter;
- if (w->sync && !first->sync) {
- // Do not include a sync write into a batch handled by a non-sync write.
- break;
- }
-
- if (!w->disableWAL && first->disableWAL) {
- // Do not include a write that needs WAL into a batch that has
- // WAL disabled.
- break;
- }
-
- if (w->batch != nullptr) {
- size += WriteBatchInternal::ByteSize(w->batch);
- if (size > max_size) {
- // Do not make batch too big
- break;
- }
-
- // Append to *reuslt
- if (result == first->batch) {
- // Switch to temporary batch instead of disturbing caller's batch
- result = &tmp_batch_;
- assert(WriteBatchInternal::Count(result) == 0);
- WriteBatchInternal::Append(result, first->batch);
- }
- WriteBatchInternal::Append(result, w->batch);
- }
- *last_writer = w;
- }
- return result;
-}
-
-// This function computes the amount of time in microseconds by which a write
-// should be delayed based on the number of level-0 files according to the
-// following formula:
-// if n < bottom, return 0;
-// if n >= top, return 1000;
-// otherwise, let r = (n - bottom) /
-// (top - bottom)
-// and return r^2 * 1000.
-// The goal of this formula is to gradually increase the rate at which writes
-// are slowed. We also tried linear delay (r * 1000), but it seemed to do
-// slightly worse. There is no other particular reason for choosing quadratic.
-uint64_t DBImpl::SlowdownAmount(int n, int top, int bottom) {
- uint64_t delay;
- if (n >= top) {
- delay = 1000;
- }
- else if (n < bottom) {
- delay = 0;
- }
- else {
- // If we are here, we know that:
- // level0_start_slowdown <= n < level0_slowdown
- // since the previous two conditions are false.
- float how_much =
- (float) (n - bottom) /
- (top - bottom);
- delay = how_much * how_much * 1000;
- }
- assert(delay <= 1000);
- return delay;
-}
-
-// REQUIRES: mutex_ is held
-// REQUIRES: this thread is currently at the front of the writer queue
-Status DBImpl::MakeRoomForWrite(bool force) {
- mutex_.AssertHeld();
- assert(!writers_.empty());
- bool allow_delay = !force;
- bool allow_hard_rate_limit_delay = !force;
- bool allow_soft_rate_limit_delay = !force;
- uint64_t rate_limit_delay_millis = 0;
- Status s;
- double score;
-
- while (true) {
- if (!bg_error_.ok()) {
- // Yield previous error
- s = bg_error_;
- break;
- } else if (
- allow_delay &&
- versions_->NumLevelFiles(0) >=
- options_.level0_slowdown_writes_trigger) {
- // We are getting close to hitting a hard limit on the number of
- // L0 files. Rather than delaying a single write by several
- // seconds when we hit the hard limit, start delaying each
- // individual write by 0-1ms to reduce latency variance. Also,
- // this delay hands over some CPU to the compaction thread in
- // case it is sharing the same core as the writer.
- mutex_.Unlock();
- uint64_t delayed;
- {
- StopWatch sw(env_, options_.statistics, STALL_L0_SLOWDOWN_COUNT);
- env_->SleepForMicroseconds(
- SlowdownAmount(versions_->NumLevelFiles(0),
- options_.level0_slowdown_writes_trigger,
- options_.level0_stop_writes_trigger)
- );
- delayed = sw.ElapsedMicros();
- }
- RecordTick(options_.statistics, STALL_L0_SLOWDOWN_MICROS, delayed);
- stall_level0_slowdown_ += delayed;
- stall_level0_slowdown_count_++;
- allow_delay = false; // Do not delay a single write more than once
- mutex_.Lock();
- delayed_writes_++;
- } else if (!force &&
- (mem_->ApproximateMemoryUsage() <= options_.write_buffer_size)) {
- // There is room in current memtable
- if (allow_delay) {
- DelayLoggingAndReset();
- }
- break;
- } else if (imm_.size() == options_.max_write_buffer_number - 1) {
- // We have filled up the current memtable, but the previous
- // ones are still being compacted, so we wait.
- DelayLoggingAndReset();
- Log(options_.info_log, "wait for memtable compaction...\n");
- uint64_t stall;
- {
- StopWatch sw(env_, options_.statistics,
- STALL_MEMTABLE_COMPACTION_COUNT);
- bg_cv_.Wait();
- stall = sw.ElapsedMicros();
- }
- RecordTick(options_.statistics, STALL_MEMTABLE_COMPACTION_MICROS, stall);
- stall_memtable_compaction_ += stall;
- stall_memtable_compaction_count_++;
- } else if (versions_->NumLevelFiles(0) >=
- options_.level0_stop_writes_trigger) {
- // There are too many level-0 files.
- DelayLoggingAndReset();
- Log(options_.info_log, "wait for fewer level0 files...\n");
- uint64_t stall;
- {
- StopWatch sw(env_, options_.statistics, STALL_L0_NUM_FILES_COUNT);
- bg_cv_.Wait();
- stall = sw.ElapsedMicros();
- }
- RecordTick(options_.statistics, STALL_L0_NUM_FILES_MICROS, stall);
- stall_level0_num_files_ += stall;
- stall_level0_num_files_count_++;
- } else if (
- allow_hard_rate_limit_delay &&
- options_.hard_rate_limit > 1.0 &&
- (score = versions_->MaxCompactionScore()) > options_.hard_rate_limit) {
- // Delay a write when the compaction score for any level is too large.
- int max_level = versions_->MaxCompactionScoreLevel();
- mutex_.Unlock();
- uint64_t delayed;
- {
- StopWatch sw(env_, options_.statistics, HARD_RATE_LIMIT_DELAY_COUNT);
- env_->SleepForMicroseconds(1000);
- delayed = sw.ElapsedMicros();
- }
- stall_leveln_slowdown_[max_level] += delayed;
- stall_leveln_slowdown_count_[max_level]++;
- // Make sure the following value doesn't round to zero.
- uint64_t rate_limit = std::max((delayed / 1000), (uint64_t) 1);
- rate_limit_delay_millis += rate_limit;
- RecordTick(options_.statistics, RATE_LIMIT_DELAY_MILLIS, rate_limit);
- if (options_.rate_limit_delay_max_milliseconds > 0 &&
- rate_limit_delay_millis >=
- (unsigned)options_.rate_limit_delay_max_milliseconds) {
- allow_hard_rate_limit_delay = false;
- }
- mutex_.Lock();
- } else if (
- allow_soft_rate_limit_delay &&
- options_.soft_rate_limit > 0.0 &&
- (score = versions_->MaxCompactionScore()) > options_.soft_rate_limit) {
- // Delay a write when the compaction score for any level is too large.
- // TODO: add statistics
- mutex_.Unlock();
- {
- StopWatch sw(env_, options_.statistics, SOFT_RATE_LIMIT_DELAY_COUNT);
- env_->SleepForMicroseconds(SlowdownAmount(
- score,
- options_.soft_rate_limit,
- options_.hard_rate_limit)
- );
- rate_limit_delay_millis += sw.ElapsedMicros();
- }
- allow_soft_rate_limit_delay = false;
- mutex_.Lock();
- } else {
- // Attempt to switch to a new memtable and trigger compaction of old
- DelayLoggingAndReset();
- assert(versions_->PrevLogNumber() == 0);
- uint64_t new_log_number = versions_->NewFileNumber();
- unique_ptr<WritableFile> lfile;
- EnvOptions soptions(storage_options_);
- soptions.use_mmap_writes = false;
- s = env_->NewWritableFile(
- LogFileName(options_.wal_dir, new_log_number),
- &lfile,
- soptions
- );
- if (!s.ok()) {
- // Avoid chewing through file number space in a tight loop.
- versions_->ReuseFileNumber(new_log_number);
- break;
- }
- // Our final size should be less than write_buffer_size
- // (compression, etc) but err on the side of caution.
- lfile->SetPreallocationBlockSize(1.1 * options_.write_buffer_size);
- logfile_number_ = new_log_number;
- log_.reset(new log::Writer(std::move(lfile)));
- mem_->SetNextLogNumber(logfile_number_);
- imm_.Add(mem_);
- if (force) {
- imm_.FlushRequested();
- }
- mem_ = new MemTable(
- internal_comparator_, mem_rep_factory_, NumberLevels(), options_);
- mem_->Ref();
- Log(options_.info_log,
- "New memtable created with log file: #%lu\n",
- (unsigned long)logfile_number_);
- mem_->SetLogNumber(logfile_number_);
- force = false; // Do not force another compaction if have room
- MaybeScheduleFlushOrCompaction();
- }
- }
- return s;
-}
-
-bool DBImpl::GetProperty(const Slice& property, std::string* value) {
- value->clear();
-
- MutexLock l(&mutex_);
- Slice in = property;
- Slice prefix("rocksdb.");
- if (!in.starts_with(prefix)) return false;
- in.remove_prefix(prefix.size());
-
- if (in.starts_with("num-files-at-level")) {
- in.remove_prefix(strlen("num-files-at-level"));
- uint64_t level;
- bool ok = ConsumeDecimalNumber(&in, &level) && in.empty();
- if (!ok || (int)level >= NumberLevels()) {
- return false;
- } else {
- char buf[100];
- snprintf(buf, sizeof(buf), "%d",
- versions_->NumLevelFiles(static_cast<int>(level)));
- *value = buf;
- return true;
- }
- } else if (in == "levelstats") {
- char buf[1000];
- snprintf(buf, sizeof(buf),
- "Level Files Size(MB)\n"
- "--------------------\n");
- value->append(buf);
-
- for (int level = 0; level < NumberLevels(); level++) {
- snprintf(buf, sizeof(buf),
- "%3d %8d %8.0f\n",
- level,
- versions_->NumLevelFiles(level),
- versions_->NumLevelBytes(level) / 1048576.0);
- value->append(buf);
- }
- return true;
-
- } else if (in == "stats") {
- char buf[1000];
- uint64_t total_bytes_written = 0;
- uint64_t total_bytes_read = 0;
- uint64_t micros_up = env_->NowMicros() - started_at_;
- // Add "+1" to make sure seconds_up is > 0 and avoid NaN later
- double seconds_up = (micros_up + 1) / 1000000.0;
- uint64_t total_slowdown = 0;
- uint64_t total_slowdown_count = 0;
- uint64_t interval_bytes_written = 0;
- uint64_t interval_bytes_read = 0;
- uint64_t interval_bytes_new = 0;
- double interval_seconds_up = 0;
-
- // Pardon the long line but I think it is easier to read this way.
- snprintf(buf, sizeof(buf),
- " Compactions\n"
- "Level Files Size(MB) Score Time(sec) Read(MB) Write(MB) Rn(MB) Rnp1(MB) Wnew(MB) RW-Amplify Read(MB/s) Write(MB/s) Rn Rnp1 Wnp1 NewW Count Ln-stall Stall-cnt\n"
- "--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------\n"
- );
- value->append(buf);
- for (int level = 0; level < NumberLevels(); level++) {
- int files = versions_->NumLevelFiles(level);
- if (stats_[level].micros > 0 || files > 0) {
- int64_t bytes_read = stats_[level].bytes_readn +
- stats_[level].bytes_readnp1;
- int64_t bytes_new = stats_[level].bytes_written -
- stats_[level].bytes_readnp1;
- double amplify = (stats_[level].bytes_readn == 0)
- ? 0.0
- : (stats_[level].bytes_written +
- stats_[level].bytes_readnp1 +
- stats_[level].bytes_readn) /
- (double) stats_[level].bytes_readn;
-
- total_bytes_read += bytes_read;
- total_bytes_written += stats_[level].bytes_written;
-
- snprintf(
- buf, sizeof(buf),
- "%3d %8d %8.0f %5.1f %9.0f %9.0f %9.0f %9.0f %9.0f %9.0f %10.1f %9.1f %11.1f %8d %8d %8d %8d %8d %9.1f %9lu\n",
- level,
- files,
- versions_->NumLevelBytes(level) / 1048576.0,
- versions_->NumLevelBytes(level) /
- versions_->MaxBytesForLevel(level),
- stats_[level].micros / 1e6,
- bytes_read / 1048576.0,
- stats_[level].bytes_written / 1048576.0,
- stats_[level].bytes_readn / 1048576.0,
- stats_[level].bytes_readnp1 / 1048576.0,
- bytes_new / 1048576.0,
- amplify,
- // +1 to avoid division by 0
- (bytes_read / 1048576.0) / ((stats_[level].micros+1) / 1000000.0),
- (stats_[level].bytes_written / 1048576.0) /
- ((stats_[level].micros+1) / 1000000.0),
- stats_[level].files_in_leveln,
- stats_[level].files_in_levelnp1,
- stats_[level].files_out_levelnp1,
- stats_[level].files_out_levelnp1 - stats_[level].files_in_levelnp1,
- stats_[level].count,
- stall_leveln_slowdown_[level] / 1000000.0,
- (unsigned long) stall_leveln_slowdown_count_[level]);
- total_slowdown += stall_leveln_slowdown_[level];
- total_slowdown_count += stall_leveln_slowdown_count_[level];
- value->append(buf);
- }
- }
-
- interval_bytes_new = stats_[0].bytes_written - last_stats_.bytes_new_;
- interval_bytes_read = total_bytes_read - last_stats_.bytes_read_;
- interval_bytes_written = total_bytes_written - last_stats_.bytes_written_;
- interval_seconds_up = seconds_up - last_stats_.seconds_up_;
-
- snprintf(buf, sizeof(buf), "Uptime(secs): %.1f total, %.1f interval\n",
- seconds_up, interval_seconds_up);
- value->append(buf);
-
- snprintf(buf, sizeof(buf),
- "Compaction IO cumulative (GB): "
- "%.2f new, %.2f read, %.2f write, %.2f read+write\n",
- stats_[0].bytes_written / (1048576.0 * 1024),
- total_bytes_read / (1048576.0 * 1024),
- total_bytes_written / (1048576.0 * 1024),
- (total_bytes_read + total_bytes_written) / (1048576.0 * 1024));
- value->append(buf);
-
- snprintf(buf, sizeof(buf),
- "Compaction IO cumulative (MB/sec): "
- "%.1f new, %.1f read, %.1f write, %.1f read+write\n",
- stats_[0].bytes_written / 1048576.0 / seconds_up,
- total_bytes_read / 1048576.0 / seconds_up,
- total_bytes_written / 1048576.0 / seconds_up,
- (total_bytes_read + total_bytes_written) / 1048576.0 / seconds_up);
- value->append(buf);
-
- // +1 to avoid divide by 0 and NaN
- snprintf(buf, sizeof(buf),
- "Amplification cumulative: %.1f write, %.1f compaction\n",
- (double) total_bytes_written / (stats_[0].bytes_written+1),
- (double) (total_bytes_written + total_bytes_read)
- / (stats_[0].bytes_written+1));
- value->append(buf);
-
- snprintf(buf, sizeof(buf),
- "Compaction IO interval (MB): "
- "%.2f new, %.2f read, %.2f write, %.2f read+write\n",
- interval_bytes_new / 1048576.0,
- interval_bytes_read/ 1048576.0,
- interval_bytes_written / 1048576.0,
- (interval_bytes_read + interval_bytes_written) / 1048576.0);
- value->append(buf);
-
- snprintf(buf, sizeof(buf),
- "Compaction IO interval (MB/sec): "
- "%.1f new, %.1f read, %.1f write, %.1f read+write\n",
- interval_bytes_new / 1048576.0 / interval_seconds_up,
- interval_bytes_read / 1048576.0 / interval_seconds_up,
- interval_bytes_written / 1048576.0 / interval_seconds_up,
- (interval_bytes_read + interval_bytes_written)
- / 1048576.0 / interval_seconds_up);
- value->append(buf);
-
- // +1 to avoid divide by 0 and NaN
- snprintf(buf, sizeof(buf),
- "Amplification interval: %.1f write, %.1f compaction\n",
- (double) interval_bytes_written / (interval_bytes_new+1),
- (double) (interval_bytes_written + interval_bytes_read) /
- (interval_bytes_new+1));
- value->append(buf);
-
- snprintf(buf, sizeof(buf),
- "Stalls(secs): %.3f level0_slowdown, %.3f level0_numfiles, "
- "%.3f memtable_compaction, %.3f leveln_slowdown\n",
- stall_level0_slowdown_ / 1000000.0,
- stall_level0_num_files_ / 1000000.0,
- stall_memtable_compaction_ / 1000000.0,
- total_slowdown / 1000000.0);
- value->append(buf);
-
- snprintf(buf, sizeof(buf),
- "Stalls(count): %lu level0_slowdown, %lu level0_numfiles, "
- "%lu memtable_compaction, %lu leveln_slowdown\n",
- (unsigned long) stall_level0_slowdown_count_,
- (unsigned long) stall_level0_num_files_count_,
- (unsigned long) stall_memtable_compaction_count_,
- (unsigned long) total_slowdown_count);
- value->append(buf);
-
- last_stats_.bytes_read_ = total_bytes_read;
- last_stats_.bytes_written_ = total_bytes_written;
- last_stats_.bytes_new_ = stats_[0].bytes_written;
- last_stats_.seconds_up_ = seconds_up;
-
- return true;
- } else if (in == "sstables") {
- *value = versions_->current()->DebugString();
- return true;
- } else if (in == "num-immutable-mem-table") {
- *value = std::to_string(imm_.size());
- return true;
- }
-
- return false;
-}
-
-void DBImpl::GetApproximateSizes(
- const Range* range, int n,
- uint64_t* sizes) {
- // TODO(opt): better implementation
- Version* v;
- {
- MutexLock l(&mutex_);
- versions_->current()->Ref();
- v = versions_->current();
- }
-
- for (int i = 0; i < n; i++) {
- // Convert user_key into a corresponding internal key.
- InternalKey k1(range[i].start, kMaxSequenceNumber, kValueTypeForSeek);
- InternalKey k2(range[i].limit, kMaxSequenceNumber, kValueTypeForSeek);
- uint64_t start = versions_->ApproximateOffsetOf(v, k1);
- uint64_t limit = versions_->ApproximateOffsetOf(v, k2);
- sizes[i] = (limit >= start ? limit - start : 0);
- }
-
- {
- MutexLock l(&mutex_);
- v->Unref();
- }
-}
-
-inline void DBImpl::DelayLoggingAndReset() {
- if (delayed_writes_ > 0) {
- Log(options_.info_log, "delayed %d write...\n", delayed_writes_ );
- delayed_writes_ = 0;
- }
-}
-
-Status DBImpl::DeleteFile(std::string name) {
- uint64_t number;
- FileType type;
- WalFileType log_type;
- if (!ParseFileName(name, &number, &type, &log_type) ||
- (type != kTableFile && type != kLogFile)) {
- Log(options_.info_log, "DeleteFile %s failed.\n", name.c_str());
- return Status::InvalidArgument("Invalid file name");
- }
-
- Status status;
- if (type == kLogFile) {
- // Only allow deleting archived log files
- if (log_type != kArchivedLogFile) {
- Log(options_.info_log, "DeleteFile %s failed.\n", name.c_str());
- return Status::NotSupported("Delete only supported for archived logs");
- }
- status = env_->DeleteFile(options_.wal_dir + "/" + name.c_str());
- if (!status.ok()) {
- Log(options_.info_log, "DeleteFile %s failed.\n", name.c_str());
- }
- return status;
- }
-
- int level;
- FileMetaData metadata;
- int maxlevel = NumberLevels();
- VersionEdit edit(maxlevel);
- DeletionState deletion_state;
- {
- MutexLock l(&mutex_);
- status = versions_->GetMetadataForFile(number, &level, &metadata);
- if (!status.ok()) {
- Log(options_.info_log, "DeleteFile %s failed. File not found\n",
- name.c_str());
- return Status::InvalidArgument("File not found");
- }
- assert((level > 0) && (level < maxlevel));
-
- // If the file is being compacted no need to delete.
- if (metadata.being_compacted) {
- Log(options_.info_log,
- "DeleteFile %s Skipped. File about to be compacted\n", name.c_str());
- return Status::OK();
- }
-
- // Only the files in the last level can be deleted externally.
- // This is to make sure that any deletion tombstones are not
- // lost. Check that the level passed is the last level.
- for (int i = level + 1; i < maxlevel; i++) {
- if (versions_->NumLevelFiles(i) != 0) {
- Log(options_.info_log,
- "DeleteFile %s FAILED. File not in last level\n", name.c_str());
- return Status::InvalidArgument("File not in last level");
- }
- }
- edit.DeleteFile(level, number);
- status = versions_->LogAndApply(&edit, &mutex_);
- FindObsoleteFiles(deletion_state, false);
- } // lock released here
- LogFlush(options_.info_log);
-
- if (status.ok()) {
- // remove files outside the db-lock
- PurgeObsoleteFiles(deletion_state);
- }
- return status;
-}
-
-void DBImpl::GetLiveFilesMetaData(std::vector<LiveFileMetaData> *metadata) {
- MutexLock l(&mutex_);
- return versions_->GetLiveFilesMetaData(metadata);
-}
-
-// Default implementations of convenience methods that subclasses of DB
-// can call if they wish
-Status DB::Put(const WriteOptions& opt, const Slice& key, const Slice& value) {
- WriteBatch batch;
- batch.Put(key, value);
- return Write(opt, &batch);
-}
-
-Status DB::Delete(const WriteOptions& opt, const Slice& key) {
- WriteBatch batch;
- batch.Delete(key);
- return Write(opt, &batch);
-}
-
-Status DB::Merge(const WriteOptions& opt, const Slice& key,
- const Slice& value) {
- WriteBatch batch;
- batch.Merge(key, value);
- return Write(opt, &batch);
-}
-
-DB::~DB() { }
-
-Status DB::Open(const Options& options, const std::string& dbname, DB** dbptr) {
- *dbptr = nullptr;
- EnvOptions soptions;
-
- if (options.block_cache != nullptr && options.no_block_cache) {
- return Status::InvalidArgument(
- "no_block_cache is true while block_cache is not nullptr");
- }
-
- DBImpl* impl = new DBImpl(options, dbname);
- Status s = impl->env_->CreateDirIfMissing(impl->options_.wal_dir);
- if (!s.ok()) {
- delete impl;
- return s;
- }
-
- s = impl->CreateArchivalDirectory();
- if (!s.ok()) {
- delete impl;
- return s;
- }
- impl->mutex_.Lock();
- VersionEdit edit(impl->NumberLevels());
- s = impl->Recover(&edit); // Handles create_if_missing, error_if_exists
- if (s.ok()) {
- uint64_t new_log_number = impl->versions_->NewFileNumber();
- unique_ptr<WritableFile> lfile;
- soptions.use_mmap_writes = false;
- s = options.env->NewWritableFile(
- LogFileName(impl->options_.wal_dir, new_log_number),
- &lfile,
- soptions
- );
- if (s.ok()) {
- lfile->SetPreallocationBlockSize(1.1 * options.write_buffer_size);
- edit.SetLogNumber(new_log_number);
- impl->logfile_number_ = new_log_number;
- impl->log_.reset(new log::Writer(std::move(lfile)));
- s = impl->versions_->LogAndApply(&edit, &impl->mutex_);
- }
- if (s.ok()) {
- impl->mem_->SetLogNumber(impl->logfile_number_);
- impl->DeleteObsoleteFiles();
- impl->MaybeScheduleFlushOrCompaction();
- impl->MaybeScheduleLogDBDeployStats();
- }
- }
- impl->mutex_.Unlock();
-
- if (options.compaction_style == kCompactionStyleUniversal) {
- int num_files;
- for (int i = 1; i < impl->NumberLevels(); i++) {
- num_files = impl->versions_->NumLevelFiles(i);
- if (num_files > 0) {
- s = Status::InvalidArgument("Not all files are at level 0. Cannot "
- "open with universal compaction style.");
- break;
- }
- }
- }
-
- if (s.ok()) {
- *dbptr = impl;
- } else {
- delete impl;
- }
- return s;
-}
-
-Snapshot::~Snapshot() {
-}
-
-Status DestroyDB(const std::string& dbname, const Options& options) {
- const InternalKeyComparator comparator(options.comparator);
- const InternalFilterPolicy filter_policy(options.filter_policy);
- const Options& soptions(SanitizeOptions(
- dbname, &comparator, &filter_policy, options));
- Env* env = soptions.env;
- std::vector<std::string> filenames;
- std::vector<std::string> archiveFiles;
-
- std::string archivedir = ArchivalDirectory(dbname);
- // Ignore error in case directory does not exist
- env->GetChildren(dbname, &filenames);
-
- if (dbname != soptions.wal_dir) {
- std::vector<std::string> logfilenames;
- env->GetChildren(soptions.wal_dir, &logfilenames);
- filenames.insert(filenames.end(), logfilenames.begin(), logfilenames.end());
- archivedir = ArchivalDirectory(soptions.wal_dir);
- }
-
- if (filenames.empty()) {
- return Status::OK();
- }
-
- FileLock* lock;
- const std::string lockname = LockFileName(dbname);
- Status result = env->LockFile(lockname, &lock);
- if (result.ok()) {
- uint64_t number;
- FileType type;
- for (size_t i = 0; i < filenames.size(); i++) {
- if (ParseFileName(filenames[i], &number, &type) &&
- type != kDBLockFile) { // Lock file will be deleted at end
- Status del;
- if (type == kMetaDatabase) {
- del = DestroyDB(dbname + "/" + filenames[i], options);
- } else if (type == kLogFile) {
- del = env->DeleteFile(soptions.wal_dir + "/" + filenames[i]);
- } else {
- del = env->DeleteFile(dbname + "/" + filenames[i]);
- }
- if (result.ok() && !del.ok()) {
- result = del;
- }
- }
- }
-
- env->GetChildren(archivedir, &archiveFiles);
- // Delete archival files.
- for (size_t i = 0; i < archiveFiles.size(); ++i) {
- if (ParseFileName(archiveFiles[i], &number, &type) &&
- type == kLogFile) {
- Status del = env->DeleteFile(archivedir + "/" + archiveFiles[i]);
- if (result.ok() && !del.ok()) {
- result = del;
- }
- }
- }
- // ignore case where no archival directory is present.
- env->DeleteDir(archivedir);
-
- env->UnlockFile(lock); // Ignore error since state is already gone
- env->DeleteFile(lockname);
- env->DeleteDir(dbname); // Ignore error in case dir contains other files
- env->DeleteDir(soptions.wal_dir);
- }
- return result;
-}
-
-//
-// A global method that can dump out the build version
-void dumpLeveldbBuildVersion(Logger * log) {
- Log(log, "Git sha %s", rocksdb_build_git_sha);
- Log(log, "Compile time %s %s",
- rocksdb_build_compile_time, rocksdb_build_compile_date);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#pragma once
-#include <atomic>
-#include <deque>
-#include <set>
-#include <vector>
-#include "db/dbformat.h"
-#include "db/log_writer.h"
-#include "db/snapshot.h"
-#include "db/version_edit.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/transaction_log.h"
-#include "port/port.h"
-#include "util/stats_logger.h"
-#include "memtablelist.h"
-
-namespace rocksdb {
-
-class MemTable;
-class TableCache;
-class Version;
-class VersionEdit;
-class VersionSet;
-
-class DBImpl : public DB {
- public:
- DBImpl(const Options& options, const std::string& dbname);
- virtual ~DBImpl();
-
- // Implementations of the DB interface
- virtual Status Put(const WriteOptions&, const Slice& key, const Slice& value);
- virtual Status Merge(const WriteOptions&, const Slice& key,
- const Slice& value);
- virtual Status Delete(const WriteOptions&, const Slice& key);
- virtual Status Write(const WriteOptions& options, WriteBatch* updates);
- virtual Status Get(const ReadOptions& options,
- const Slice& key,
- std::string* value);
- virtual std::vector<Status> MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values);
-
- // Returns false if key doesn't exist in the database and true if it may.
- // If value_found is not passed in as null, then return the value if found in
- // memory. On return, if value was found, then value_found will be set to true
- // , otherwise false.
- virtual bool KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found = nullptr);
- virtual Iterator* NewIterator(const ReadOptions&);
- virtual const Snapshot* GetSnapshot();
- virtual void ReleaseSnapshot(const Snapshot* snapshot);
- virtual bool GetProperty(const Slice& property, std::string* value);
- virtual void GetApproximateSizes(const Range* range, int n, uint64_t* sizes);
- virtual void CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level = false, int target_level = -1);
- virtual int NumberLevels();
- virtual int MaxMemCompactionLevel();
- virtual int Level0StopWriteTrigger();
- virtual Status Flush(const FlushOptions& options);
- virtual Status DisableFileDeletions();
- virtual Status EnableFileDeletions();
- // All the returned filenames start with "/"
- virtual Status GetLiveFiles(std::vector<std::string>&,
- uint64_t* manifest_file_size,
- bool flush_memtable = true);
- virtual Status GetSortedWalFiles(VectorLogPtr& files);
- virtual SequenceNumber GetLatestSequenceNumber() const;
- virtual Status GetUpdatesSince(SequenceNumber seq_number,
- unique_ptr<TransactionLogIterator>* iter);
- virtual Status DeleteFile(std::string name);
-
- virtual void GetLiveFilesMetaData(
- std::vector<LiveFileMetaData> *metadata);
-
- // Extra methods (for testing) that are not in the public DB interface
-
- // Compact any files in the named level that overlap [*begin, *end]
- void TEST_CompactRange(int level, const Slice* begin, const Slice* end);
-
- // Force current memtable contents to be flushed.
- Status TEST_FlushMemTable();
-
- // Wait for memtable compaction
- Status TEST_WaitForFlushMemTable();
-
- // Wait for any compaction
- Status TEST_WaitForCompact();
-
- // Return an internal iterator over the current state of the database.
- // The keys of this iterator are internal keys (see format.h).
- // The returned iterator should be deleted when no longer needed.
- Iterator* TEST_NewInternalIterator();
-
- // Return the maximum overlapping data (in bytes) at next level for any
- // file at a level >= 1.
- int64_t TEST_MaxNextLevelOverlappingBytes();
-
- // Simulate a db crash, no elegant closing of database.
- void TEST_Destroy_DBImpl();
-
- // Return the current manifest file no.
- uint64_t TEST_Current_Manifest_FileNo();
-
- // Trigger's a background call for testing.
- void TEST_PurgeObsoleteteWAL();
-
- // get total level0 file size. Only for testing.
- uint64_t TEST_GetLevel0TotalSize() { return versions_->NumLevelBytes(0);}
-
- void TEST_SetDefaultTimeToCheck(uint64_t default_interval_to_delete_obsolete_WAL)
- {
- default_interval_to_delete_obsolete_WAL_ = default_interval_to_delete_obsolete_WAL;
- }
-
- // needed for CleanupIteratorState
-
- struct DeletionState {
- inline bool HaveSomethingToDelete() const {
- return all_files.size() ||
- sst_delete_files.size() ||
- log_delete_files.size();
- }
- // a list of all files that we'll consider deleting
- // (every once in a while this is filled up with all files
- // in the DB directory)
- std::vector<std::string> all_files;
-
- // the list of all live sst files that cannot be deleted
- std::vector<uint64_t> sst_live;
-
- // a list of sst files that we need to delete
- std::vector<FileMetaData*> sst_delete_files;
-
- // a list of log files that we need to delete
- std::vector<uint64_t> log_delete_files;
-
- // the current manifest_file_number, log_number and prev_log_number
- // that corresponds to the set of files in 'live'.
- uint64_t manifest_file_number, log_number, prev_log_number;
-
- DeletionState() {
- manifest_file_number = 0;
- log_number = 0;
- prev_log_number = 0;
- }
- };
-
- // Returns the list of live files in 'live' and the list
- // of all files in the filesystem in 'all_files'.
- // If force == false and the last call was less than
- // options_.delete_obsolete_files_period_micros microseconds ago,
- // it will not fill up the deletion_state
- void FindObsoleteFiles(DeletionState& deletion_state,
- bool force,
- bool no_full_scan = false);
-
- // Diffs the files listed in filenames and those that do not
- // belong to live files are posibly removed. Also, removes all the
- // files in sst_delete_files and log_delete_files.
- // It is not necessary to hold the mutex when invoking this method.
- void PurgeObsoleteFiles(DeletionState& deletion_state);
-
- protected:
- Env* const env_;
- const std::string dbname_;
- unique_ptr<VersionSet> versions_;
- const InternalKeyComparator internal_comparator_;
- const Options options_; // options_.comparator == &internal_comparator_
-
- const Comparator* user_comparator() const {
- return internal_comparator_.user_comparator();
- }
-
- MemTable* GetMemTable() {
- return mem_;
- }
-
- Iterator* NewInternalIterator(const ReadOptions&,
- SequenceNumber* latest_snapshot);
-
- private:
- friend class DB;
- struct CompactionState;
- struct Writer;
-
- Status NewDB();
-
- // Recover the descriptor from persistent storage. May do a significant
- // amount of work to recover recently logged updates. Any changes to
- // be made to the descriptor are added to *edit.
- Status Recover(VersionEdit* edit, MemTable* external_table = nullptr,
- bool error_if_log_file_exist = false);
-
- void MaybeIgnoreError(Status* s) const;
-
- const Status CreateArchivalDirectory();
-
- // Delete any unneeded files and stale in-memory entries.
- void DeleteObsoleteFiles();
-
- // Flush the in-memory write buffer to storage. Switches to a new
- // log-file/memtable and writes a new descriptor iff successful.
- Status FlushMemTableToOutputFile(bool* madeProgress,
- DeletionState& deletion_state);
-
- Status RecoverLogFile(uint64_t log_number,
- VersionEdit* edit,
- SequenceNumber* max_sequence,
- MemTable* external_table);
-
- // The following two methods are used to flush a memtable to
- // storage. The first one is used atdatabase RecoveryTime (when the
- // database is opened) and is heavyweight because it holds the mutex
- // for the entire period. The second method WriteLevel0Table supports
- // concurrent flush memtables to storage.
- Status WriteLevel0TableForRecovery(MemTable* mem, VersionEdit* edit);
- Status WriteLevel0Table(std::vector<MemTable*> &mems, VersionEdit* edit,
- uint64_t* filenumber);
-
- uint64_t SlowdownAmount(int n, int top, int bottom);
- Status MakeRoomForWrite(bool force /* compact even if there is room? */);
- WriteBatch* BuildBatchGroup(Writer** last_writer);
-
- // Force current memtable contents to be flushed.
- Status FlushMemTable(const FlushOptions& options);
-
- // Wait for memtable flushed
- Status WaitForFlushMemTable();
-
- void MaybeScheduleLogDBDeployStats();
- static void BGLogDBDeployStats(void* db);
- void LogDBDeployStats();
-
- void MaybeScheduleFlushOrCompaction();
- static void BGWorkCompaction(void* db);
- static void BGWorkFlush(void* db);
- void BackgroundCallCompaction();
- void BackgroundCallFlush();
- Status BackgroundCompaction(bool* madeProgress,DeletionState& deletion_state);
- Status BackgroundFlush(bool* madeProgress, DeletionState& deletion_state);
- void CleanupCompaction(CompactionState* compact, Status status);
- Status DoCompactionWork(CompactionState* compact,
- DeletionState& deletion_state);
-
- Status OpenCompactionOutputFile(CompactionState* compact);
- Status FinishCompactionOutputFile(CompactionState* compact, Iterator* input);
- Status InstallCompactionResults(CompactionState* compact);
- void AllocateCompactionOutputFileNumbers(CompactionState* compact);
- void ReleaseCompactionUnusedFileNumbers(CompactionState* compact);
-
- void PurgeObsoleteWALFiles();
-
- Status AppendSortedWalsOfType(const std::string& path,
- VectorLogPtr& log_files,
- WalFileType type);
-
- // Requires: all_logs should be sorted with earliest log file first
- // Retains all log files in all_logs which contain updates with seq no.
- // Greater Than or Equal to the requested SequenceNumber.
- Status RetainProbableWalFiles(VectorLogPtr& all_logs,
- const SequenceNumber target);
- // return true if
- bool CheckWalFileExistsAndEmpty(const WalFileType type,
- const uint64_t number);
-
- Status ReadFirstRecord(const WalFileType type, const uint64_t number,
- WriteBatch* const result);
-
- Status ReadFirstLine(const std::string& fname, WriteBatch* const batch);
-
- void PrintStatistics();
-
- // dump rocksdb.stats to LOG
- void MaybeDumpStats();
-
- // Return the minimum empty level that could hold the total data in the
- // input level. Return the input level, if such level could not be found.
- int FindMinimumEmptyLevelFitting(int level);
-
- // Move the files in the input level to the target level.
- // If target_level < 0, automatically calculate the minimum level that could
- // hold the data set.
- void ReFitLevel(int level, int target_level = -1);
-
- // Constant after construction
- const InternalFilterPolicy internal_filter_policy_;
- bool owns_info_log_;
-
- // table_cache_ provides its own synchronization
- unique_ptr<TableCache> table_cache_;
-
- // Lock over the persistent DB state. Non-nullptr iff successfully acquired.
- FileLock* db_lock_;
-
- // State below is protected by mutex_
- port::Mutex mutex_;
- port::AtomicPointer shutting_down_;
- port::CondVar bg_cv_; // Signalled when background work finishes
- std::shared_ptr<MemTableRepFactory> mem_rep_factory_;
- MemTable* mem_;
- MemTableList imm_; // Memtable that are not changing
- uint64_t logfile_number_;
- unique_ptr<log::Writer> log_;
-
- std::string host_name_;
-
- // Queue of writers.
- std::deque<Writer*> writers_;
- WriteBatch tmp_batch_;
-
- SnapshotList snapshots_;
-
- // Set of table files to protect from deletion because they are
- // part of ongoing compactions.
- std::set<uint64_t> pending_outputs_;
-
- // count how many background compaction been scheduled or is running?
- int bg_compaction_scheduled_;
-
- // number of background memtable flush jobs, submitted to the HIGH pool
- int bg_flush_scheduled_;
-
- // Has a background stats log thread scheduled?
- bool bg_logstats_scheduled_;
-
- // Information for a manual compaction
- struct ManualCompaction {
- int level;
- bool done;
- bool in_progress; // compaction request being processed?
- const InternalKey* begin; // nullptr means beginning of key range
- const InternalKey* end; // nullptr means end of key range
- InternalKey tmp_storage; // Used to keep track of compaction progress
- };
- ManualCompaction* manual_compaction_;
-
- // Have we encountered a background error in paranoid mode?
- Status bg_error_;
-
- std::unique_ptr<StatsLogger> logger_;
-
- int64_t volatile last_log_ts;
-
- // shall we disable deletion of obsolete files
- bool disable_delete_obsolete_files_;
-
- // last time when DeleteObsoleteFiles was invoked
- uint64_t delete_obsolete_files_last_run_;
-
- // last time when PurgeObsoleteWALFiles ran.
- uint64_t purge_wal_files_last_run_;
-
- // last time stats were dumped to LOG
- std::atomic<uint64_t> last_stats_dump_time_microsec_;
-
- // obsolete files will be deleted every this seconds if ttl deletion is
- // enabled and archive size_limit is disabled.
- uint64_t default_interval_to_delete_obsolete_WAL_;
-
- // These count the number of microseconds for which MakeRoomForWrite stalls.
- uint64_t stall_level0_slowdown_;
- uint64_t stall_memtable_compaction_;
- uint64_t stall_level0_num_files_;
- std::vector<uint64_t> stall_leveln_slowdown_;
- uint64_t stall_level0_slowdown_count_;
- uint64_t stall_memtable_compaction_count_;
- uint64_t stall_level0_num_files_count_;
- std::vector<uint64_t> stall_leveln_slowdown_count_;
-
- // Time at which this instance was started.
- const uint64_t started_at_;
-
- bool flush_on_destroy_; // Used when disableWAL is true.
-
- // Per level compaction stats. stats_[level] stores the stats for
- // compactions that produced data for the specified "level".
- struct CompactionStats {
- uint64_t micros;
-
- // Bytes read from level N during compaction between levels N and N+1
- int64_t bytes_readn;
-
- // Bytes read from level N+1 during compaction between levels N and N+1
- int64_t bytes_readnp1;
-
- // Total bytes written during compaction between levels N and N+1
- int64_t bytes_written;
-
- // Files read from level N during compaction between levels N and N+1
- int files_in_leveln;
-
- // Files read from level N+1 during compaction between levels N and N+1
- int files_in_levelnp1;
-
- // Files written during compaction between levels N and N+1
- int files_out_levelnp1;
-
- // Number of compactions done
- int count;
-
- CompactionStats() : micros(0), bytes_readn(0), bytes_readnp1(0),
- bytes_written(0), files_in_leveln(0),
- files_in_levelnp1(0), files_out_levelnp1(0),
- count(0) { }
-
- void Add(const CompactionStats& c) {
- this->micros += c.micros;
- this->bytes_readn += c.bytes_readn;
- this->bytes_readnp1 += c.bytes_readnp1;
- this->bytes_written += c.bytes_written;
- this->files_in_leveln += c.files_in_leveln;
- this->files_in_levelnp1 += c.files_in_levelnp1;
- this->files_out_levelnp1 += c.files_out_levelnp1;
- this->count += 1;
- }
- };
-
- std::vector<CompactionStats> stats_;
-
- // Used to compute per-interval statistics
- struct StatsSnapshot {
- uint64_t bytes_read_;
- uint64_t bytes_written_;
- uint64_t bytes_new_;
- double seconds_up_;
-
- StatsSnapshot() : bytes_read_(0), bytes_written_(0),
- bytes_new_(0), seconds_up_(0) {}
- };
-
- StatsSnapshot last_stats_;
-
- static const int KEEP_LOG_FILE_NUM = 1000;
- std::string db_absolute_path_;
-
- // count of the number of contiguous delaying writes
- int delayed_writes_;
-
- // The options to access storage files
- const EnvOptions storage_options_;
-
- // A value of true temporarily disables scheduling of background work
- bool bg_work_gate_closed_;
-
- // Guard against multiple concurrent refitting
- bool refitting_level_;
-
- // No copying allowed
- DBImpl(const DBImpl&);
- void operator=(const DBImpl&);
-
- // dump the delayed_writes_ to the log file and reset counter.
- void DelayLoggingAndReset();
-
- // Return the earliest snapshot where seqno is visible.
- // Store the snapshot right before that, if any, in prev_snapshot
- inline SequenceNumber findEarliestVisibleSnapshot(
- SequenceNumber in,
- std::vector<SequenceNumber>& snapshots,
- SequenceNumber* prev_snapshot);
-
- // Function that Get and KeyMayExist call with no_io true or false
- // Note: 'value_found' from KeyMayExist propagates here
- Status GetImpl(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found = nullptr);
-};
-
-// Sanitize db options. The caller should delete result.info_log if
-// it is not equal to src.info_log.
-extern Options SanitizeOptions(const std::string& db,
- const InternalKeyComparator* icmp,
- const InternalFilterPolicy* ipolicy,
- const Options& src);
-
-
-// Determine compression type, based on user options, level of the output
-// file and whether compression is disabled.
-// If enable_compression is false, then compression is always disabled no
-// matter what the values of the other two parameters are.
-// Otherwise, the compression type is determined based on options and level.
-CompressionType GetCompressionType(const Options& options, int level,
- const bool enable_compression);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 Facebook. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "db/db_impl_readonly.h"
-#include "db/db_impl.h"
-
-#include <algorithm>
-#include <set>
-#include <string>
-#include <stdint.h>
-#include <stdio.h>
-#include <vector>
-#include <algorithm>
-#include "db/db_iter.h"
-#include "db/dbformat.h"
-#include "db/filename.h"
-#include "db/log_reader.h"
-#include "db/log_writer.h"
-#include "db/memtable.h"
-#include "db/table_cache.h"
-#include "db/version_set.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/status.h"
-#include "rocksdb/table.h"
-#include "port/port.h"
-#include "table/block.h"
-#include "table/merger.h"
-#include "table/two_level_iterator.h"
-#include "util/coding.h"
-#include "util/logging.h"
-#include "util/build_version.h"
-
-namespace rocksdb {
-
-DBImplReadOnly::DBImplReadOnly(const Options& options,
- const std::string& dbname)
- : DBImpl(options, dbname) {
- Log(options_.info_log, "Opening the db in read only mode");
-}
-
-DBImplReadOnly::~DBImplReadOnly() {
-}
-
-// Implementations of the DB interface
-Status DBImplReadOnly::Get(const ReadOptions& options,
- const Slice& key,
- std::string* value) {
- Status s;
- MemTable* mem = GetMemTable();
- Version* current = versions_->current();
- SequenceNumber snapshot = versions_->LastSequence();
- std::deque<std::string> merge_operands;
- LookupKey lkey(key, snapshot);
- if (mem->Get(lkey, value, &s, &merge_operands, options_)) {
- } else {
- Version::GetStats stats;
- current->Get(options, lkey, value, &s, &merge_operands, &stats, options_);
- }
- return s;
-}
-
-Iterator* DBImplReadOnly::NewIterator(const ReadOptions& options) {
- SequenceNumber latest_snapshot;
- Iterator* internal_iter = NewInternalIterator(options, &latest_snapshot);
- return NewDBIterator(
- &dbname_, env_, options_, user_comparator(),internal_iter,
- (options.snapshot != nullptr
- ? reinterpret_cast<const SnapshotImpl*>(options.snapshot)->number_
- : latest_snapshot));
-}
-
-
-Status DB::OpenForReadOnly(const Options& options, const std::string& dbname,
- DB** dbptr, bool error_if_log_file_exist) {
- *dbptr = nullptr;
-
- DBImplReadOnly* impl = new DBImplReadOnly(options, dbname);
- impl->mutex_.Lock();
- VersionEdit edit(impl->NumberLevels());
- Status s = impl->Recover(&edit, impl->GetMemTable(),
- error_if_log_file_exist);
- impl->mutex_.Unlock();
- if (s.ok()) {
- *dbptr = impl;
- } else {
- delete impl;
- }
- return s;
-}
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 Facebook. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#pragma once
-#include "db/db_impl.h"
-
-#include <deque>
-#include <set>
-#include "db/dbformat.h"
-#include "db/log_writer.h"
-#include "db/snapshot.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "port/port.h"
-#include "util/stats_logger.h"
-
-namespace rocksdb {
-
-class DBImplReadOnly : public DBImpl {
-public:
- DBImplReadOnly(const Options& options, const std::string& dbname);
- virtual ~DBImplReadOnly();
-
- // Implementations of the DB interface
- virtual Status Get(const ReadOptions& options,
- const Slice& key,
- std::string* value);
-
- // TODO: Implement ReadOnly MultiGet?
-
- virtual Iterator* NewIterator(const ReadOptions&);
-
- virtual Status Put(const WriteOptions&, const Slice& key, const Slice& value) {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual Status Merge(const WriteOptions&, const Slice& key,
- const Slice& value) {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual Status Delete(const WriteOptions&, const Slice& key) {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual Status Write(const WriteOptions& options, WriteBatch* updates) {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual void CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level = false, int target_level = -1) {
- }
- virtual Status DisableFileDeletions() {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual Status EnableFileDeletions() {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual Status GetLiveFiles(std::vector<std::string>&,
- uint64_t* manifest_file_size,
- bool flush_memtable = true) {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
- virtual Status Flush(const FlushOptions& options) {
- return Status::NotSupported("Not supported operation in read only mode.");
- }
-
-private:
- friend class DB;
-
- // No copying allowed
- DBImplReadOnly(const DBImplReadOnly&);
- void operator=(const DBImplReadOnly&);
-};
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/db_iter.h"
-#include <stdexcept>
-#include <deque>
-
-#include "db/filename.h"
-#include "db/dbformat.h"
-#include "rocksdb/env.h"
-#include "rocksdb/options.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/merge_operator.h"
-#include "port/port.h"
-#include "util/logging.h"
-#include "util/mutexlock.h"
-#include "util/perf_context_imp.h"
-
-namespace rocksdb {
-
-#if 0
-static void DumpInternalIter(Iterator* iter) {
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- ParsedInternalKey k;
- if (!ParseInternalKey(iter->key(), &k)) {
- fprintf(stderr, "Corrupt '%s'\n", EscapeString(iter->key()).c_str());
- } else {
- fprintf(stderr, "@ '%s'\n", k.DebugString().c_str());
- }
- }
-}
-#endif
-
-namespace {
-
-// Memtables and sstables that make the DB representation contain
-// (userkey,seq,type) => uservalue entries. DBIter
-// combines multiple entries for the same userkey found in the DB
-// representation into a single entry while accounting for sequence
-// numbers, deletion markers, overwrites, etc.
-class DBIter: public Iterator {
- public:
- // The following is grossly complicated. TODO: clean it up
- // Which direction is the iterator currently moving?
- // (1) When moving forward, the internal iterator is positioned at
- // the exact entry that yields this->key(), this->value()
- // (2) When moving backwards, the internal iterator is positioned
- // just before all entries whose user key == this->key().
- enum Direction {
- kForward,
- kReverse
- };
-
- DBIter(const std::string* dbname, Env* env, const Options& options,
- const Comparator* cmp, Iterator* iter, SequenceNumber s)
- : dbname_(dbname),
- env_(env),
- logger_(options.info_log),
- user_comparator_(cmp),
- user_merge_operator_(options.merge_operator.get()),
- iter_(iter),
- sequence_(s),
- direction_(kForward),
- valid_(false),
- current_entry_is_merged_(false),
- statistics_(options.statistics) {
- RecordTick(statistics_, NO_ITERATORS, 1);
- max_skip_ = options.max_sequential_skip_in_iterations;
- }
- virtual ~DBIter() {
- RecordTick(statistics_, NO_ITERATORS, -1);
- delete iter_;
- }
- virtual bool Valid() const { return valid_; }
- virtual Slice key() const {
- assert(valid_);
- return saved_key_;
- }
- virtual Slice value() const {
- assert(valid_);
- return (direction_ == kForward && !current_entry_is_merged_) ?
- iter_->value() : saved_value_;
- }
- virtual Status status() const {
- if (status_.ok()) {
- return iter_->status();
- } else {
- return status_;
- }
- }
-
- virtual void Next();
- virtual void Prev();
- virtual void Seek(const Slice& target);
- virtual void SeekToFirst();
- virtual void SeekToLast();
-
- private:
- void FindNextUserEntry(bool skipping);
- void FindPrevUserEntry();
- bool ParseKey(ParsedInternalKey* key);
- void MergeValuesNewToOld();
-
- inline void SaveKey(const Slice& k, std::string* dst) {
- dst->assign(k.data(), k.size());
- }
-
- inline void ClearSavedValue() {
- if (saved_value_.capacity() > 1048576) {
- std::string empty;
- swap(empty, saved_value_);
- } else {
- saved_value_.clear();
- }
- }
-
- const std::string* const dbname_;
- Env* const env_;
- shared_ptr<Logger> logger_;
- const Comparator* const user_comparator_;
- const MergeOperator* const user_merge_operator_;
- Iterator* const iter_;
- SequenceNumber const sequence_;
-
- Status status_;
- std::string saved_key_; // == current key when direction_==kReverse
- std::string saved_value_; // == current raw value when direction_==kReverse
- std::string skip_key_;
- Direction direction_;
- bool valid_;
- bool current_entry_is_merged_;
- std::shared_ptr<Statistics> statistics_;
- uint64_t max_skip_;
-
- // No copying allowed
- DBIter(const DBIter&);
- void operator=(const DBIter&);
-};
-
-inline bool DBIter::ParseKey(ParsedInternalKey* ikey) {
- if (!ParseInternalKey(iter_->key(), ikey)) {
- status_ = Status::Corruption("corrupted internal key in DBIter");
- Log(logger_, "corrupted internal key in DBIter: %s",
- iter_->key().ToString(true).c_str());
- return false;
- } else {
- return true;
- }
-}
-
-void DBIter::Next() {
- assert(valid_);
-
- if (direction_ == kReverse) { // Switch directions?
- direction_ = kForward;
- // iter_ is pointing just before the entries for this->key(),
- // so advance into the range of entries for this->key() and then
- // use the normal skipping code below.
- if (!iter_->Valid()) {
- iter_->SeekToFirst();
- } else {
- iter_->Next();
- }
- if (!iter_->Valid()) {
- valid_ = false;
- saved_key_.clear();
- return;
- }
- }
-
- // If the current value is merged, we might already hit end of iter_
- if (!iter_->Valid()) {
- valid_ = false;
- return;
- }
- FindNextUserEntry(true /* skipping the current user key */);
-}
-
-
-// PRE: saved_key_ has the current user key if skipping
-// POST: saved_key_ should have the next user key if valid_,
-// if the current entry is a result of merge
-// current_entry_is_merged_ => true
-// saved_value_ => the merged value
-//
-// NOTE: In between, saved_key_ can point to a user key that has
-// a delete marker
-void DBIter::FindNextUserEntry(bool skipping) {
- // Loop until we hit an acceptable entry to yield
- assert(iter_->Valid());
- assert(direction_ == kForward);
- current_entry_is_merged_ = false;
- uint64_t num_skipped = 0;
- do {
- ParsedInternalKey ikey;
- if (ParseKey(&ikey) && ikey.sequence <= sequence_) {
- if (skipping &&
- user_comparator_->Compare(ikey.user_key, saved_key_) <= 0) {
- num_skipped++; // skip this entry
- BumpPerfCount(&perf_context.internal_key_skipped_count);
- } else {
- skipping = false;
- switch (ikey.type) {
- case kTypeDeletion:
- // Arrange to skip all upcoming entries for this key since
- // they are hidden by this deletion.
- SaveKey(ikey.user_key, &saved_key_);
- skipping = true;
- num_skipped = 0;
- BumpPerfCount(&perf_context.internal_delete_skipped_count);
- break;
- case kTypeValue:
- valid_ = true;
- SaveKey(ikey.user_key, &saved_key_);
- return;
- case kTypeMerge:
- // By now, we are sure the current ikey is going to yield a value
- SaveKey(ikey.user_key, &saved_key_);
- current_entry_is_merged_ = true;
- valid_ = true;
- MergeValuesNewToOld(); // Go to a different state machine
- return;
- case kTypeLogData:
- assert(false);
- break;
- }
- }
- }
- // If we have sequentially iterated via numerous keys and still not
- // found the next user-key, then it is better to seek so that we can
- // avoid too many key comparisons. We seek to the last occurence of
- // our current key by looking for sequence number 0.
- if (skipping && num_skipped > max_skip_) {
- num_skipped = 0;
- std::string last_key;
- AppendInternalKey(&last_key,
- ParsedInternalKey(Slice(saved_key_), 0, kValueTypeForSeek));
- iter_->Seek(last_key);
- RecordTick(statistics_, NUMBER_OF_RESEEKS_IN_ITERATION);
- } else {
- iter_->Next();
- }
- } while (iter_->Valid());
- valid_ = false;
-}
-
-// Merge values of the same user key starting from the current iter_ position
-// Scan from the newer entries to older entries.
-// PRE: iter_->key() points to the first merge type entry
-// saved_key_ stores the user key
-// POST: saved_value_ has the merged value for the user key
-// iter_ points to the next entry (or invalid)
-void DBIter::MergeValuesNewToOld() {
- if (!user_merge_operator_) {
- Log(logger_, "Options::merge_operator is null.");
- throw std::logic_error("DBIter::MergeValuesNewToOld() with"
- " Options::merge_operator null");
- }
-
- // Start the merge process by pushing the first operand
- std::deque<std::string> operands;
- operands.push_front(iter_->value().ToString());
-
- std::string merge_result; // Temporary string to hold merge result later
- ParsedInternalKey ikey;
- for (iter_->Next(); iter_->Valid(); iter_->Next()) {
- if (!ParseKey(&ikey)) {
- // skip corrupted key
- continue;
- }
-
- if (user_comparator_->Compare(ikey.user_key, saved_key_) != 0) {
- // hit the next user key, stop right here
- break;
- }
-
- if (kTypeDeletion == ikey.type) {
- // hit a delete with the same user key, stop right here
- // iter_ is positioned after delete
- iter_->Next();
- break;
- }
-
- if (kTypeValue == ikey.type) {
- // hit a put, merge the put value with operands and store the
- // final result in saved_value_. We are done!
- // ignore corruption if there is any.
- const Slice value = iter_->value();
- user_merge_operator_->FullMerge(ikey.user_key, &value, operands,
- &saved_value_, logger_.get());
- // iter_ is positioned after put
- iter_->Next();
- return;
- }
-
- if (kTypeMerge == ikey.type) {
- // hit a merge, add the value as an operand and run associative merge.
- // when complete, add result to operands and continue.
- const Slice& value = iter_->value();
- operands.push_front(value.ToString());
- while(operands.size() >= 2) {
- // Call user associative-merge until it returns false
- if (user_merge_operator_->PartialMerge(ikey.user_key,
- Slice(operands[0]),
- Slice(operands[1]),
- &merge_result,
- logger_.get())) {
- operands.pop_front();
- swap(operands.front(), merge_result);
- } else {
- // Associative merge returns false ==> stack the operands
- break;
- }
- }
-
- }
- }
-
- // we either exhausted all internal keys under this user key, or hit
- // a deletion marker.
- // feed null as the existing value to the merge operator, such that
- // client can differentiate this scenario and do things accordingly.
- user_merge_operator_->FullMerge(saved_key_, nullptr, operands,
- &saved_value_, logger_.get());
-}
-
-void DBIter::Prev() {
- assert(valid_);
-
- // Throw an exception now if merge_operator is provided
- // TODO: support backward iteration
- if (user_merge_operator_) {
- Log(logger_, "Prev not supported yet if merge_operator is provided");
- throw std::logic_error("DBIter::Prev backward iteration not supported"
- " if merge_operator is provided");
- }
-
- if (direction_ == kForward) { // Switch directions?
- // iter_ is pointing at the current entry. Scan backwards until
- // the key changes so we can use the normal reverse scanning code.
- assert(iter_->Valid()); // Otherwise valid_ would have been false
- SaveKey(ExtractUserKey(iter_->key()), &saved_key_);
- while (true) {
- iter_->Prev();
- if (!iter_->Valid()) {
- valid_ = false;
- saved_key_.clear();
- ClearSavedValue();
- return;
- }
- if (user_comparator_->Compare(ExtractUserKey(iter_->key()),
- saved_key_) < 0) {
- break;
- }
- }
- direction_ = kReverse;
- }
-
- FindPrevUserEntry();
-}
-
-void DBIter::FindPrevUserEntry() {
- assert(direction_ == kReverse);
- uint64_t num_skipped = 0;
-
- ValueType value_type = kTypeDeletion;
- if (iter_->Valid()) {
- do {
- ParsedInternalKey ikey;
- bool saved_key_cleared = false;
- if (ParseKey(&ikey) && ikey.sequence <= sequence_) {
- if ((value_type != kTypeDeletion) &&
- user_comparator_->Compare(ikey.user_key, saved_key_) < 0) {
- // We encountered a non-deleted value in entries for previous keys,
- break;
- }
- value_type = ikey.type;
- if (value_type == kTypeDeletion) {
- saved_key_.clear();
- ClearSavedValue();
- saved_key_cleared = true;
- } else {
- Slice raw_value = iter_->value();
- if (saved_value_.capacity() > raw_value.size() + 1048576) {
- std::string empty;
- swap(empty, saved_value_);
- }
- SaveKey(ExtractUserKey(iter_->key()), &saved_key_);
- saved_value_.assign(raw_value.data(), raw_value.size());
- }
- }
- num_skipped++;
- // If we have sequentially iterated via numerous keys and still not
- // found the prev user-key, then it is better to seek so that we can
- // avoid too many key comparisons. We seek to the first occurence of
- // our current key by looking for max sequence number.
- if (!saved_key_cleared && num_skipped > max_skip_) {
- num_skipped = 0;
- std::string last_key;
- AppendInternalKey(&last_key,
- ParsedInternalKey(Slice(saved_key_), kMaxSequenceNumber,
- kValueTypeForSeek));
- iter_->Seek(last_key);
- RecordTick(statistics_, NUMBER_OF_RESEEKS_IN_ITERATION);
- } else {
- iter_->Prev();
- }
- } while (iter_->Valid());
- }
-
- if (value_type == kTypeDeletion) {
- // End
- valid_ = false;
- saved_key_.clear();
- ClearSavedValue();
- direction_ = kForward;
- } else {
- valid_ = true;
- }
-}
-
-void DBIter::Seek(const Slice& target) {
- direction_ = kForward;
- ClearSavedValue();
- saved_key_.clear();
- AppendInternalKey(
- &saved_key_, ParsedInternalKey(target, sequence_, kValueTypeForSeek));
- iter_->Seek(saved_key_);
- if (iter_->Valid()) {
- FindNextUserEntry(false /*not skipping */);
- } else {
- valid_ = false;
- }
-}
-
-void DBIter::SeekToFirst() {
- direction_ = kForward;
- ClearSavedValue();
- iter_->SeekToFirst();
- if (iter_->Valid()) {
- FindNextUserEntry(false /* not skipping */);
- } else {
- valid_ = false;
- }
-}
-
-void DBIter::SeekToLast() {
- // Throw an exception for now if merge_operator is provided
- // TODO: support backward iteration
- if (user_merge_operator_) {
- Log(logger_, "SeekToLast not supported yet if merge_operator is provided");
- throw std::logic_error("DBIter::SeekToLast: backward iteration not"
- " supported if merge_operator is provided");
- }
-
- direction_ = kReverse;
- ClearSavedValue();
- iter_->SeekToLast();
- FindPrevUserEntry();
-}
-
-} // anonymous namespace
-
-Iterator* NewDBIterator(
- const std::string* dbname,
- Env* env,
- const Options& options,
- const Comparator *user_key_comparator,
- Iterator* internal_iter,
- const SequenceNumber& sequence) {
- return new DBIter(dbname, env, options, user_key_comparator,
- internal_iter, sequence);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <stdint.h>
-#include "rocksdb/db.h"
-#include "db/dbformat.h"
-
-namespace rocksdb {
-
-// Return a new iterator that converts internal keys (yielded by
-// "*internal_iter") that were live at the specified "sequence" number
-// into appropriate user keys.
-extern Iterator* NewDBIterator(
- const std::string* dbname,
- Env* env,
- const Options& options,
- const Comparator *user_key_comparator,
- Iterator* internal_iter,
- const SequenceNumber& sequence);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <cassert>
-#include <stdlib.h>
-#include <vector>
-#include <memory>
-
-#include "rocksdb/statistics.h"
-#include "util/histogram.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-
-
-namespace rocksdb {
-
-class DBStatistics: public Statistics {
- public:
- DBStatistics() : allTickers_(TICKER_ENUM_MAX),
- allHistograms_(HISTOGRAM_ENUM_MAX) { }
-
- virtual ~DBStatistics() {}
-
- virtual long getTickerCount(Tickers tickerType) {
- assert(tickerType < TICKER_ENUM_MAX);
- return allTickers_[tickerType].getCount();
- }
-
- virtual void setTickerCount(Tickers tickerType, uint64_t count) {
- assert(tickerType < TICKER_ENUM_MAX);
- allTickers_[tickerType].setTickerCount(count);
- }
-
- virtual void recordTick(Tickers tickerType, uint64_t count) {
- assert(tickerType < TICKER_ENUM_MAX);
- allTickers_[tickerType].recordTick(count);
- }
-
- virtual void measureTime(Histograms histogramType, uint64_t value) {
- assert(histogramType < HISTOGRAM_ENUM_MAX);
- allHistograms_[histogramType].Add(value);
- }
-
- virtual void histogramData(Histograms histogramType,
- HistogramData * const data) {
- assert(histogramType < HISTOGRAM_ENUM_MAX);
- allHistograms_[histogramType].Data(data);
- }
-
- std::vector<Ticker> allTickers_;
- std::vector<HistogramImpl> allHistograms_;
-};
-
-std::shared_ptr<Statistics> CreateDBStatistics() {
- return std::make_shared<DBStatistics>();
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/db_impl.h"
-#include <string>
-#include <stdint.h>
-#include <stdio.h>
-#include "db/version_set.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-
-namespace rocksdb {
-
-void DBImpl::MaybeScheduleLogDBDeployStats() {
-
- // There is a lock in the actual logger.
- if (!logger_ || options_.db_stats_log_interval < 0
- || host_name_.empty()) {
- return;
- }
-
- if(bg_logstats_scheduled_ || shutting_down_.Acquire_Load()) {
- // Already scheduled
- } else {
- int64_t current_ts = 0;
- Status st = env_->GetCurrentTime(¤t_ts);
- if (!st.ok()) {
- return;
- }
- if ((current_ts - last_log_ts) < options_.db_stats_log_interval) {
- return;
- }
- last_log_ts = current_ts;
- bg_logstats_scheduled_ = true;
- env_->Schedule(&DBImpl::BGLogDBDeployStats, this);
- }
-}
-
-void DBImpl::BGLogDBDeployStats(void* db) {
- DBImpl* db_inst = reinterpret_cast<DBImpl*>(db);
- db_inst->LogDBDeployStats();
-}
-
-void DBImpl::LogDBDeployStats() {
- mutex_.Lock();
-
- if (shutting_down_.Acquire_Load()) {
- bg_logstats_scheduled_ = false;
- bg_cv_.SignalAll();
- mutex_.Unlock();
- return;
- }
-
- char tmp_ver[100];
- sprintf(tmp_ver, "%d.%d", kMajorVersion, kMinorVersion);
- std::string version_info(tmp_ver);
-
- uint64_t file_total_size = 0;
- uint32_t file_total_num = 0;
- for (int i = 0; i < versions_->NumberLevels(); i++) {
- file_total_num += versions_->NumLevelFiles(i);
- file_total_size += versions_->NumLevelBytes(i);
- }
-
- VersionSet::LevelSummaryStorage scratch;
- const char* file_num_summary = versions_->LevelSummary(&scratch);
- std::string file_num_per_level(file_num_summary);
- std::string data_size_per_level(file_num_summary);
-
- mutex_.Unlock();
-
- int64_t unix_ts;
- env_->GetCurrentTime(&unix_ts);
-
- logger_->Log_Deploy_Stats(version_info, host_name_,
- db_absolute_path_, file_total_size, file_total_num, file_num_per_level,
- data_size_per_level, unix_ts);
-
- mutex_.Lock();
- bg_logstats_scheduled_ = false;
- bg_cv_.SignalAll();
- mutex_.Unlock();
-}
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <algorithm>
-#include <set>
-
-#include "rocksdb/db.h"
-#include "rocksdb/filter_policy.h"
-#include "db/db_impl.h"
-#include "db/filename.h"
-#include "db/version_set.h"
-#include "db/write_batch_internal.h"
-#include "db/db_statistics.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/env.h"
-#include "rocksdb/table.h"
-#include "util/hash.h"
-#include "util/logging.h"
-#include "util/mutexlock.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "utilities/merge_operators.h"
-
-namespace rocksdb {
-
-static bool SnappyCompressionSupported(const CompressionOptions& options) {
- std::string out;
- Slice in = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
- return port::Snappy_Compress(options, in.data(), in.size(), &out);
-}
-
-static bool ZlibCompressionSupported(const CompressionOptions& options) {
- std::string out;
- Slice in = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
- return port::Zlib_Compress(options, in.data(), in.size(), &out);
-}
-
-static bool BZip2CompressionSupported(const CompressionOptions& options) {
- std::string out;
- Slice in = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
- return port::BZip2_Compress(options, in.data(), in.size(), &out);
-}
-
-static std::string RandomString(Random* rnd, int len) {
- std::string r;
- test::RandomString(rnd, len, &r);
- return r;
-}
-
-static std::string CompressibleString(Random* rnd, int len) {
- std::string r;
- test::CompressibleString(rnd, 0.8, len, &r);
- return r;
-}
-
-namespace anon {
-class AtomicCounter {
- private:
- port::Mutex mu_;
- int count_;
- public:
- AtomicCounter() : count_(0) { }
- void Increment() {
- MutexLock l(&mu_);
- count_++;
- }
- int Read() {
- MutexLock l(&mu_);
- return count_;
- }
- void Reset() {
- MutexLock l(&mu_);
- count_ = 0;
- }
-};
-
-}
-
-// Special Env used to delay background operations
-class SpecialEnv : public EnvWrapper {
- public:
- // sstable Sync() calls are blocked while this pointer is non-nullptr.
- port::AtomicPointer delay_sstable_sync_;
-
- // Simulate no-space errors while this pointer is non-nullptr.
- port::AtomicPointer no_space_;
-
- // Simulate non-writable file system while this pointer is non-nullptr
- port::AtomicPointer non_writable_;
-
- // Force sync of manifest files to fail while this pointer is non-nullptr
- port::AtomicPointer manifest_sync_error_;
-
- // Force write to manifest files to fail while this pointer is non-nullptr
- port::AtomicPointer manifest_write_error_;
-
- // Force write to log files to fail while this pointer is non-nullptr
- port::AtomicPointer log_write_error_;
-
- bool count_random_reads_;
- anon::AtomicCounter random_read_counter_;
-
- anon::AtomicCounter sleep_counter_;
-
- explicit SpecialEnv(Env* base) : EnvWrapper(base) {
- delay_sstable_sync_.Release_Store(nullptr);
- no_space_.Release_Store(nullptr);
- non_writable_.Release_Store(nullptr);
- count_random_reads_ = false;
- manifest_sync_error_.Release_Store(nullptr);
- manifest_write_error_.Release_Store(nullptr);
- log_write_error_.Release_Store(nullptr);
- }
-
- Status NewWritableFile(const std::string& f, unique_ptr<WritableFile>* r,
- const EnvOptions& soptions) {
- class SSTableFile : public WritableFile {
- private:
- SpecialEnv* env_;
- unique_ptr<WritableFile> base_;
-
- public:
- SSTableFile(SpecialEnv* env, unique_ptr<WritableFile>&& base)
- : env_(env),
- base_(std::move(base)) {
- }
- Status Append(const Slice& data) {
- if (env_->no_space_.Acquire_Load() != nullptr) {
- // Drop writes on the floor
- return Status::OK();
- } else {
- return base_->Append(data);
- }
- }
- Status Close() { return base_->Close(); }
- Status Flush() { return base_->Flush(); }
- Status Sync() {
- while (env_->delay_sstable_sync_.Acquire_Load() != nullptr) {
- env_->SleepForMicroseconds(100000);
- }
- return base_->Sync();
- }
- };
- class ManifestFile : public WritableFile {
- private:
- SpecialEnv* env_;
- unique_ptr<WritableFile> base_;
- public:
- ManifestFile(SpecialEnv* env, unique_ptr<WritableFile>&& b)
- : env_(env), base_(std::move(b)) { }
- Status Append(const Slice& data) {
- if (env_->manifest_write_error_.Acquire_Load() != nullptr) {
- return Status::IOError("simulated writer error");
- } else {
- return base_->Append(data);
- }
- }
- Status Close() { return base_->Close(); }
- Status Flush() { return base_->Flush(); }
- Status Sync() {
- if (env_->manifest_sync_error_.Acquire_Load() != nullptr) {
- return Status::IOError("simulated sync error");
- } else {
- return base_->Sync();
- }
- }
- };
- class LogFile : public WritableFile {
- private:
- SpecialEnv* env_;
- unique_ptr<WritableFile> base_;
- public:
- LogFile(SpecialEnv* env, unique_ptr<WritableFile>&& b)
- : env_(env), base_(std::move(b)) { }
- Status Append(const Slice& data) {
- if (env_->log_write_error_.Acquire_Load() != nullptr) {
- return Status::IOError("simulated writer error");
- } else {
- return base_->Append(data);
- }
- }
- Status Close() { return base_->Close(); }
- Status Flush() { return base_->Flush(); }
- Status Sync() { return base_->Sync(); }
- };
-
- if (non_writable_.Acquire_Load() != nullptr) {
- return Status::IOError("simulated write error");
- }
-
- Status s = target()->NewWritableFile(f, r, soptions);
- if (s.ok()) {
- if (strstr(f.c_str(), ".sst") != nullptr) {
- r->reset(new SSTableFile(this, std::move(*r)));
- } else if (strstr(f.c_str(), "MANIFEST") != nullptr) {
- r->reset(new ManifestFile(this, std::move(*r)));
- } else if (strstr(f.c_str(), "log") != nullptr) {
- r->reset(new LogFile(this, std::move(*r)));
- }
- }
- return s;
- }
-
- Status NewRandomAccessFile(const std::string& f,
- unique_ptr<RandomAccessFile>* r,
- const EnvOptions& soptions) {
- class CountingFile : public RandomAccessFile {
- private:
- unique_ptr<RandomAccessFile> target_;
- anon::AtomicCounter* counter_;
- public:
- CountingFile(unique_ptr<RandomAccessFile>&& target,
- anon::AtomicCounter* counter)
- : target_(std::move(target)), counter_(counter) {
- }
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- counter_->Increment();
- return target_->Read(offset, n, result, scratch);
- }
- };
-
- Status s = target()->NewRandomAccessFile(f, r, soptions);
- if (s.ok() && count_random_reads_) {
- r->reset(new CountingFile(std::move(*r), &random_read_counter_));
- }
- return s;
- }
-
- virtual void SleepForMicroseconds(int micros) {
- sleep_counter_.Increment();
- target()->SleepForMicroseconds(micros);
- }
-};
-
-class DBTest {
- private:
- const FilterPolicy* filter_policy_;
-
- protected:
- // Sequence of option configurations to try
- enum OptionConfig {
- kDefault,
- kVectorRep,
- kUnsortedRep,
- kMergePut,
- kFilter,
- kUncompressed,
- kNumLevel_3,
- kDBLogDir,
- kWalDir,
- kManifestFileSize,
- kCompactOnFlush,
- kPerfOptions,
- kDeletesFilterFirst,
- kPrefixHashRep,
- kUniversalCompaction,
- kCompressedBlockCache,
- kEnd
- };
- int option_config_;
-
- public:
- std::string dbname_;
- SpecialEnv* env_;
- DB* db_;
-
- Options last_options_;
-
- // Skip some options, as they may not be applicable to a specific test.
- // To add more skip constants, use values 4, 8, 16, etc.
- enum OptionSkip {
- kNoSkip = 0,
- kSkipDeletesFilterFirst = 1,
- kSkipUniversalCompaction = 2,
- kSkipMergePut = 4
- };
-
- DBTest() : option_config_(kDefault),
- env_(new SpecialEnv(Env::Default())) {
- filter_policy_ = NewBloomFilterPolicy(10);
- dbname_ = test::TmpDir() + "/db_test";
- ASSERT_OK(DestroyDB(dbname_, Options()));
- db_ = nullptr;
- Reopen();
- }
-
- ~DBTest() {
- delete db_;
- ASSERT_OK(DestroyDB(dbname_, Options()));
- delete env_;
- delete filter_policy_;
- }
-
- // Switch to a fresh database with the next option configuration to
- // test. Return false if there are no more configurations to test.
- bool ChangeOptions(int skip_mask = kNoSkip) {
- option_config_++;
-
- // skip some options
- if (skip_mask & kSkipDeletesFilterFirst &&
- option_config_ == kDeletesFilterFirst) {
- option_config_++;
- }
- if (skip_mask & kSkipUniversalCompaction &&
- option_config_ == kUniversalCompaction) {
- option_config_++;
- }
- if (skip_mask & kSkipMergePut && option_config_ == kMergePut) {
- option_config_++;
- }
- if (option_config_ >= kEnd) {
- Destroy(&last_options_);
- return false;
- } else {
- DestroyAndReopen();
- return true;
- }
- }
-
- // Switch between different compaction styles (we have only 2 now).
- bool ChangeCompactOptions(Options* prev_options = nullptr) {
- if (option_config_ == kDefault) {
- option_config_ = kUniversalCompaction;
- if (prev_options == nullptr) {
- prev_options = &last_options_;
- }
- Destroy(prev_options);
- TryReopen();
- return true;
- } else {
- return false;
- }
- }
-
- // Return the current option configuration.
- Options CurrentOptions() {
- Options options;
- switch (option_config_) {
- case kPrefixHashRep:
- options.memtable_factory.reset(new
- PrefixHashRepFactory(NewFixedPrefixTransform(1)));
- break;
- case kMergePut:
- options.merge_operator = MergeOperators::CreatePutOperator();
- break;
- case kFilter:
- options.filter_policy = filter_policy_;
- break;
- case kUncompressed:
- options.compression = kNoCompression;
- break;
- case kNumLevel_3:
- options.num_levels = 3;
- break;
- case kDBLogDir:
- options.db_log_dir = test::TmpDir();
- break;
- case kWalDir:
- options.wal_dir = "/tmp/wal";
- break;
- case kManifestFileSize:
- options.max_manifest_file_size = 50; // 50 bytes
- case kCompactOnFlush:
- options.purge_redundant_kvs_while_flush =
- !options.purge_redundant_kvs_while_flush;
- break;
- case kPerfOptions:
- options.hard_rate_limit = 2.0;
- options.rate_limit_delay_max_milliseconds = 2;
- // TODO -- test more options
- break;
- case kDeletesFilterFirst:
- options.filter_deletes = true;
- break;
- case kUnsortedRep:
- options.memtable_factory.reset(new UnsortedRepFactory);
- break;
- case kVectorRep:
- options.memtable_factory.reset(new VectorRepFactory(100));
- break;
- case kUniversalCompaction:
- options.compaction_style = kCompactionStyleUniversal;
- break;
- case kCompressedBlockCache:
- options.block_cache_compressed = NewLRUCache(8*1024*1024);
- break;
- default:
- break;
- }
- return options;
- }
-
- DBImpl* dbfull() {
- return reinterpret_cast<DBImpl*>(db_);
- }
-
- void Reopen(Options* options = nullptr) {
- ASSERT_OK(TryReopen(options));
- }
-
- void Close() {
- delete db_;
- db_ = nullptr;
- }
-
- void DestroyAndReopen(Options* options = nullptr) {
- //Destroy using last options
- Destroy(&last_options_);
- ASSERT_OK(TryReopen(options));
- }
-
- void Destroy(Options* options) {
- delete db_;
- db_ = nullptr;
- ASSERT_OK(DestroyDB(dbname_, *options));
- }
-
- Status PureReopen(Options* options, DB** db) {
- return DB::Open(*options, dbname_, db);
- }
-
- Status TryReopen(Options* options = nullptr) {
- delete db_;
- db_ = nullptr;
- Options opts;
- if (options != nullptr) {
- opts = *options;
- } else {
- opts = CurrentOptions();
- opts.create_if_missing = true;
- }
- last_options_ = opts;
-
- return DB::Open(opts, dbname_, &db_);
- }
-
- Status Put(const Slice& k, const Slice& v, WriteOptions wo = WriteOptions()) {
- if (kMergePut == option_config_ ) {
- return db_->Merge(wo, k, v);
- } else {
- return db_->Put(wo, k, v);
- }
- }
-
- Status Delete(const std::string& k) {
- return db_->Delete(WriteOptions(), k);
- }
-
- std::string Get(const std::string& k, const Snapshot* snapshot = nullptr) {
- ReadOptions options;
- options.verify_checksums = true;
- options.snapshot = snapshot;
- std::string result;
- Status s = db_->Get(options, k, &result);
- if (s.IsNotFound()) {
- result = "NOT_FOUND";
- } else if (!s.ok()) {
- result = s.ToString();
- }
- return result;
- }
-
- // Return a string that contains all key,value pairs in order,
- // formatted like "(k1->v1)(k2->v2)".
- std::string Contents() {
- std::vector<std::string> forward;
- std::string result;
- Iterator* iter = db_->NewIterator(ReadOptions());
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- std::string s = IterStatus(iter);
- result.push_back('(');
- result.append(s);
- result.push_back(')');
- forward.push_back(s);
- }
-
- // Check reverse iteration results are the reverse of forward results
- unsigned int matched = 0;
- for (iter->SeekToLast(); iter->Valid(); iter->Prev()) {
- ASSERT_LT(matched, forward.size());
- ASSERT_EQ(IterStatus(iter), forward[forward.size() - matched - 1]);
- matched++;
- }
- ASSERT_EQ(matched, forward.size());
-
- delete iter;
- return result;
- }
-
- std::string AllEntriesFor(const Slice& user_key) {
- Iterator* iter = dbfull()->TEST_NewInternalIterator();
- InternalKey target(user_key, kMaxSequenceNumber, kTypeValue);
- iter->Seek(target.Encode());
- std::string result;
- if (!iter->status().ok()) {
- result = iter->status().ToString();
- } else {
- result = "[ ";
- bool first = true;
- while (iter->Valid()) {
- ParsedInternalKey ikey;
- if (!ParseInternalKey(iter->key(), &ikey)) {
- result += "CORRUPTED";
- } else {
- if (last_options_.comparator->Compare(ikey.user_key, user_key) != 0) {
- break;
- }
- if (!first) {
- result += ", ";
- }
- first = false;
- switch (ikey.type) {
- case kTypeValue:
- result += iter->value().ToString();
- break;
- case kTypeMerge:
- // keep it the same as kTypeValue for testing kMergePut
- result += iter->value().ToString();
- break;
- case kTypeDeletion:
- result += "DEL";
- break;
- case kTypeLogData:
- assert(false);
- break;
- }
- }
- iter->Next();
- }
- if (!first) {
- result += " ";
- }
- result += "]";
- }
- delete iter;
- return result;
- }
-
- int NumTableFilesAtLevel(int level) {
- std::string property;
- ASSERT_TRUE(
- db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
- &property));
- return atoi(property.c_str());
- }
-
- int TotalTableFiles() {
- int result = 0;
- for (int level = 0; level < db_->NumberLevels(); level++) {
- result += NumTableFilesAtLevel(level);
- }
- return result;
- }
-
- // Return spread of files per level
- std::string FilesPerLevel() {
- std::string result;
- int last_non_zero_offset = 0;
- for (int level = 0; level < db_->NumberLevels(); level++) {
- int f = NumTableFilesAtLevel(level);
- char buf[100];
- snprintf(buf, sizeof(buf), "%s%d", (level ? "," : ""), f);
- result += buf;
- if (f > 0) {
- last_non_zero_offset = result.size();
- }
- }
- result.resize(last_non_zero_offset);
- return result;
- }
-
- int CountFiles() {
- std::vector<std::string> files;
- env_->GetChildren(dbname_, &files);
-
- std::vector<std::string> logfiles;
- if (dbname_ != last_options_.wal_dir) {
- env_->GetChildren(last_options_.wal_dir, &logfiles);
- }
-
- return static_cast<int>(files.size() + logfiles.size());
- }
-
- int CountLiveFiles() {
- std::vector<std::string> files;
- uint64_t manifest_file_size;
- db_->GetLiveFiles(files, &manifest_file_size);
- return files.size();
- }
-
- uint64_t Size(const Slice& start, const Slice& limit) {
- Range r(start, limit);
- uint64_t size;
- db_->GetApproximateSizes(&r, 1, &size);
- return size;
- }
-
- void Compact(const Slice& start, const Slice& limit) {
- db_->CompactRange(&start, &limit);
- }
-
- // Do n memtable compactions, each of which produces an sstable
- // covering the range [small,large].
- void MakeTables(int n, const std::string& small, const std::string& large) {
- for (int i = 0; i < n; i++) {
- Put(small, "begin");
- Put(large, "end");
- dbfull()->TEST_FlushMemTable();
- }
- }
-
- // Prevent pushing of new sstables into deeper levels by adding
- // tables that cover a specified range to all levels.
- void FillLevels(const std::string& smallest, const std::string& largest) {
- MakeTables(db_->NumberLevels(), smallest, largest);
- }
-
- void DumpFileCounts(const char* label) {
- fprintf(stderr, "---\n%s:\n", label);
- fprintf(stderr, "maxoverlap: %lld\n",
- static_cast<long long>(
- dbfull()->TEST_MaxNextLevelOverlappingBytes()));
- for (int level = 0; level < db_->NumberLevels(); level++) {
- int num = NumTableFilesAtLevel(level);
- if (num > 0) {
- fprintf(stderr, " level %3d : %d files\n", level, num);
- }
- }
- }
-
- std::string DumpSSTableList() {
- std::string property;
- db_->GetProperty("rocksdb.sstables", &property);
- return property;
- }
-
- std::string IterStatus(Iterator* iter) {
- std::string result;
- if (iter->Valid()) {
- result = iter->key().ToString() + "->" + iter->value().ToString();
- } else {
- result = "(invalid)";
- }
- return result;
- }
-
- Options OptionsForLogIterTest() {
- Options options = CurrentOptions();
- options.create_if_missing = true;
- options.WAL_ttl_seconds = 1000;
- return options;
- }
-
- std::unique_ptr<TransactionLogIterator> OpenTransactionLogIter(
- const SequenceNumber seq) {
- unique_ptr<TransactionLogIterator> iter;
- Status status = dbfull()->GetUpdatesSince(seq, &iter);
- ASSERT_OK(status);
- ASSERT_TRUE(iter->Valid());
- return std::move(iter);
- }
-
- std::string DummyString(size_t len, char c = 'a') {
- return std::string(len, c);
- }
-
- void VerifyIterLast(std::string expected_key) {
- Iterator* iter = db_->NewIterator(ReadOptions());
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), expected_key);
- delete iter;
- }
-};
-
-TEST(DBTest, Empty) {
- do {
- ASSERT_TRUE(db_ != nullptr);
- ASSERT_EQ("NOT_FOUND", Get("foo"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, ReadWrite) {
- do {
- ASSERT_OK(Put("foo", "v1"));
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_OK(Put("bar", "v2"));
- ASSERT_OK(Put("foo", "v3"));
- ASSERT_EQ("v3", Get("foo"));
- ASSERT_EQ("v2", Get("bar"));
- } while (ChangeOptions());
-}
-
-// Make sure that when options.block_cache is set, after a new table is
-// created its index/filter blocks are added to block cache.
-TEST(DBTest, IndexAndFilterBlocksOfNewTableAddedToCache) {
- Options options = CurrentOptions();
- std::unique_ptr<const FilterPolicy> filter_policy(NewBloomFilterPolicy(20));
- options.filter_policy = filter_policy.get();
- options.create_if_missing = true;
- options.statistics = rocksdb::CreateDBStatistics();
- DestroyAndReopen(&options);
-
- ASSERT_OK(db_->Put(WriteOptions(), "key", "val"));
- // Create a new talbe.
- dbfull()->Flush(FlushOptions());
-
- // index/filter blocks added to block cache right after table creation.
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_INDEX_MISS));
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_MISS));
- ASSERT_EQ(2, /* only index/filter were added */
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
- ASSERT_EQ(0,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_DATA_MISS));
-
- // Make sure filter block is in cache.
- std::string value;
- ReadOptions ropt;
- db_->KeyMayExist(ReadOptions(), "key", &value);
-
- // Miss count should remain the same.
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_MISS));
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_HIT));
-
- db_->KeyMayExist(ReadOptions(), "key", &value);
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_MISS));
- ASSERT_EQ(2,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_HIT));
-
- // Make sure index block is in cache.
- auto index_block_hit =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_HIT);
- value = Get("key");
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_MISS));
- ASSERT_EQ(index_block_hit + 1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_HIT));
-
- value = Get("key");
- ASSERT_EQ(1,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_MISS));
- ASSERT_EQ(index_block_hit + 2,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_FILTER_HIT));
-}
-
-static std::string Key(int i) {
- char buf[100];
- snprintf(buf, sizeof(buf), "key%06d", i);
- return std::string(buf);
-}
-
-TEST(DBTest, LevelLimitReopen) {
- Options options = CurrentOptions();
- Reopen(&options);
-
- const std::string value(1024 * 1024, ' ');
- int i = 0;
- while (NumTableFilesAtLevel(2) == 0) {
- ASSERT_OK(Put(Key(i++), value));
- }
-
- options.num_levels = 1;
- options.max_bytes_for_level_multiplier_additional.resize(1, 1);
- Status s = TryReopen(&options);
- ASSERT_EQ(s.IsCorruption(), true);
- ASSERT_EQ(s.ToString(),
- "Corruption: VersionEdit: db already has "
- "more levels than options.num_levels");
-
- options.num_levels = 10;
- options.max_bytes_for_level_multiplier_additional.resize(10, 1);
- ASSERT_OK(TryReopen(&options));
-}
-
-TEST(DBTest, Preallocation) {
- const std::string src = dbname_ + "/alloc_test";
- unique_ptr<WritableFile> srcfile;
- const EnvOptions soptions;
- ASSERT_OK(env_->NewWritableFile(src, &srcfile, soptions));
- srcfile->SetPreallocationBlockSize(1024 * 1024);
-
- // No writes should mean no preallocation
- size_t block_size, last_allocated_block;
- srcfile->GetPreallocationStatus(&block_size, &last_allocated_block);
- ASSERT_EQ(last_allocated_block, 0UL);
-
- // Small write should preallocate one block
- srcfile->Append("test");
- srcfile->GetPreallocationStatus(&block_size, &last_allocated_block);
- ASSERT_EQ(last_allocated_block, 1UL);
-
- // Write an entire preallocation block, make sure we increased by two.
- std::string buf(block_size, ' ');
- srcfile->Append(buf);
- srcfile->GetPreallocationStatus(&block_size, &last_allocated_block);
- ASSERT_EQ(last_allocated_block, 2UL);
-
- // Write five more blocks at once, ensure we're where we need to be.
- buf = std::string(block_size * 5, ' ');
- srcfile->Append(buf);
- srcfile->GetPreallocationStatus(&block_size, &last_allocated_block);
- ASSERT_EQ(last_allocated_block, 7UL);
-}
-
-TEST(DBTest, PutDeleteGet) {
- do {
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v1"));
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_OK(db_->Put(WriteOptions(), "foo", "v2"));
- ASSERT_EQ("v2", Get("foo"));
- ASSERT_OK(db_->Delete(WriteOptions(), "foo"));
- ASSERT_EQ("NOT_FOUND", Get("foo"));
- } while (ChangeOptions());
-}
-
-
-TEST(DBTest, GetFromImmutableLayer) {
- do {
- Options options = CurrentOptions();
- options.env = env_;
- options.write_buffer_size = 100000; // Small write buffer
- Reopen(&options);
-
- ASSERT_OK(Put("foo", "v1"));
- ASSERT_EQ("v1", Get("foo"));
-
- env_->delay_sstable_sync_.Release_Store(env_); // Block sync calls
- Put("k1", std::string(100000, 'x')); // Fill memtable
- Put("k2", std::string(100000, 'y')); // Trigger compaction
- ASSERT_EQ("v1", Get("foo"));
- env_->delay_sstable_sync_.Release_Store(nullptr); // Release sync calls
- } while (ChangeOptions());
-}
-
-TEST(DBTest, GetFromVersions) {
- do {
- ASSERT_OK(Put("foo", "v1"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v1", Get("foo"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, GetSnapshot) {
- do {
- // Try with both a short key and a long key
- for (int i = 0; i < 2; i++) {
- std::string key = (i == 0) ? std::string("foo") : std::string(200, 'x');
- ASSERT_OK(Put(key, "v1"));
- const Snapshot* s1 = db_->GetSnapshot();
- ASSERT_OK(Put(key, "v2"));
- ASSERT_EQ("v2", Get(key));
- ASSERT_EQ("v1", Get(key, s1));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v2", Get(key));
- ASSERT_EQ("v1", Get(key, s1));
- db_->ReleaseSnapshot(s1);
- }
- } while (ChangeOptions());
-}
-
-TEST(DBTest, GetLevel0Ordering) {
- do {
- // Check that we process level-0 files in correct order. The code
- // below generates two level-0 files where the earlier one comes
- // before the later one in the level-0 file list since the earlier
- // one has a smaller "smallest" key.
- ASSERT_OK(Put("bar", "b"));
- ASSERT_OK(Put("foo", "v1"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_OK(Put("foo", "v2"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v2", Get("foo"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, GetOrderedByLevels) {
- do {
- ASSERT_OK(Put("foo", "v1"));
- Compact("a", "z");
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_OK(Put("foo", "v2"));
- ASSERT_EQ("v2", Get("foo"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v2", Get("foo"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, GetPicksCorrectFile) {
- do {
- // Arrange to have multiple files in a non-level-0 level.
- ASSERT_OK(Put("a", "va"));
- Compact("a", "b");
- ASSERT_OK(Put("x", "vx"));
- Compact("x", "y");
- ASSERT_OK(Put("f", "vf"));
- Compact("f", "g");
- ASSERT_EQ("va", Get("a"));
- ASSERT_EQ("vf", Get("f"));
- ASSERT_EQ("vx", Get("x"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, GetEncountersEmptyLevel) {
- do {
- // Arrange for the following to happen:
- // * sstable A in level 0
- // * nothing in level 1
- // * sstable B in level 2
- // Then do enough Get() calls to arrange for an automatic compaction
- // of sstable A. A bug would cause the compaction to be marked as
- // occuring at level 1 (instead of the correct level 0).
-
- // Step 1: First place sstables in levels 0 and 2
- int compaction_count = 0;
- while (NumTableFilesAtLevel(0) == 0 ||
- NumTableFilesAtLevel(2) == 0) {
- ASSERT_LE(compaction_count, 100) << "could not fill levels 0 and 2";
- compaction_count++;
- Put("a", "begin");
- Put("z", "end");
- dbfull()->TEST_FlushMemTable();
- }
-
- // Step 2: clear level 1 if necessary.
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_EQ(NumTableFilesAtLevel(0), 1);
- ASSERT_EQ(NumTableFilesAtLevel(1), 0);
- ASSERT_EQ(NumTableFilesAtLevel(2), 1);
-
- // Step 3: read a bunch of times
- for (int i = 0; i < 1000; i++) {
- ASSERT_EQ("NOT_FOUND", Get("missing"));
- }
-
- // Step 4: Wait for compaction to finish
- env_->SleepForMicroseconds(1000000);
-
- ASSERT_EQ(NumTableFilesAtLevel(0), 1); // XXX
- } while (ChangeOptions(kSkipUniversalCompaction));
-}
-
-// KeyMayExist can lead to a few false positives, but not false negatives.
-// To make test deterministic, use a much larger number of bits per key-20 than
-// bits in the key, so that false positives are eliminated
-TEST(DBTest, KeyMayExist) {
- do {
- ReadOptions ropts;
- std::string value;
- Options options = CurrentOptions();
- options.filter_policy = NewBloomFilterPolicy(20);
- options.statistics = rocksdb::CreateDBStatistics();
- Reopen(&options);
-
- ASSERT_TRUE(!db_->KeyMayExist(ropts, "a", &value));
-
- ASSERT_OK(db_->Put(WriteOptions(), "a", "b"));
- bool value_found = false;
- ASSERT_TRUE(db_->KeyMayExist(ropts, "a", &value, &value_found));
- ASSERT_TRUE(value_found);
- ASSERT_EQ("b", value);
-
- dbfull()->Flush(FlushOptions());
- value.clear();
-
- long numopen = options.statistics.get()->getTickerCount(NO_FILE_OPENS);
- long cache_added =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD);
- ASSERT_TRUE(db_->KeyMayExist(ropts, "a", &value, &value_found));
- ASSERT_TRUE(!value_found);
- // assert that no new files were opened and no new blocks were
- // read into block cache.
- ASSERT_EQ(numopen, options.statistics.get()->getTickerCount(NO_FILE_OPENS));
- ASSERT_EQ(cache_added,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
-
- ASSERT_OK(db_->Delete(WriteOptions(), "a"));
-
- numopen = options.statistics.get()->getTickerCount(NO_FILE_OPENS);
- cache_added =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD);
- ASSERT_TRUE(!db_->KeyMayExist(ropts, "a", &value));
- ASSERT_EQ(numopen, options.statistics.get()->getTickerCount(NO_FILE_OPENS));
- ASSERT_EQ(cache_added,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
-
- dbfull()->Flush(FlushOptions());
- dbfull()->CompactRange(nullptr, nullptr);
-
- numopen = options.statistics.get()->getTickerCount(NO_FILE_OPENS);
- cache_added =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD);
- ASSERT_TRUE(!db_->KeyMayExist(ropts, "a", &value));
- ASSERT_EQ(numopen, options.statistics.get()->getTickerCount(NO_FILE_OPENS));
- ASSERT_EQ(cache_added,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
-
- ASSERT_OK(db_->Delete(WriteOptions(), "c"));
-
- numopen = options.statistics.get()->getTickerCount(NO_FILE_OPENS);
- cache_added =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD);
- ASSERT_TRUE(!db_->KeyMayExist(ropts, "c", &value));
- ASSERT_EQ(numopen, options.statistics.get()->getTickerCount(NO_FILE_OPENS));
- ASSERT_EQ(cache_added,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
-
- delete options.filter_policy;
- } while (ChangeOptions());
-}
-
-TEST(DBTest, NonBlockingIteration) {
- do {
- ReadOptions non_blocking_opts, regular_opts;
- Options options = CurrentOptions();
- options.statistics = rocksdb::CreateDBStatistics();
- non_blocking_opts.read_tier = kBlockCacheTier;
- Reopen(&options);
- // write one kv to the database.
- ASSERT_OK(db_->Put(WriteOptions(), "a", "b"));
-
- // scan using non-blocking iterator. We should find it because
- // it is in memtable.
- Iterator* iter = db_->NewIterator(non_blocking_opts);
- int count = 0;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- ASSERT_OK(iter->status());
- count++;
- }
- ASSERT_EQ(count, 1);
- delete iter;
-
- // flush memtable to storage. Now, the key should not be in the
- // memtable neither in the block cache.
- dbfull()->Flush(FlushOptions());
-
- // verify that a non-blocking iterator does not find any
- // kvs. Neither does it do any IOs to storage.
- long numopen = options.statistics.get()->getTickerCount(NO_FILE_OPENS);
- long cache_added =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD);
- iter = db_->NewIterator(non_blocking_opts);
- count = 0;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- count++;
- }
- ASSERT_EQ(count, 0);
- ASSERT_TRUE(iter->status().IsIncomplete());
- ASSERT_EQ(numopen, options.statistics.get()->getTickerCount(NO_FILE_OPENS));
- ASSERT_EQ(cache_added,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
- delete iter;
-
- // read in the specified block via a regular get
- ASSERT_EQ(Get("a"), "b");
-
- // verify that we can find it via a non-blocking scan
- numopen = options.statistics.get()->getTickerCount(NO_FILE_OPENS);
- cache_added =
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD);
- iter = db_->NewIterator(non_blocking_opts);
- count = 0;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- ASSERT_OK(iter->status());
- count++;
- }
- ASSERT_EQ(count, 1);
- ASSERT_EQ(numopen, options.statistics.get()->getTickerCount(NO_FILE_OPENS));
- ASSERT_EQ(cache_added,
- options.statistics.get()->getTickerCount(BLOCK_CACHE_ADD));
- delete iter;
-
- } while (ChangeOptions());
-}
-
-// A delete is skipped for key if KeyMayExist(key) returns False
-// Tests Writebatch consistency and proper delete behaviour
-TEST(DBTest, FilterDeletes) {
- do {
- Options options = CurrentOptions();
- options.filter_policy = NewBloomFilterPolicy(20);
- options.filter_deletes = true;
- Reopen(&options);
- WriteBatch batch;
-
- batch.Delete("a");
- dbfull()->Write(WriteOptions(), &batch);
- ASSERT_EQ(AllEntriesFor("a"), "[ ]"); // Delete skipped
- batch.Clear();
-
- batch.Put("a", "b");
- batch.Delete("a");
- dbfull()->Write(WriteOptions(), &batch);
- ASSERT_EQ(Get("a"), "NOT_FOUND");
- ASSERT_EQ(AllEntriesFor("a"), "[ DEL, b ]"); // Delete issued
- batch.Clear();
-
- batch.Delete("c");
- batch.Put("c", "d");
- dbfull()->Write(WriteOptions(), &batch);
- ASSERT_EQ(Get("c"), "d");
- ASSERT_EQ(AllEntriesFor("c"), "[ d ]"); // Delete skipped
- batch.Clear();
-
- dbfull()->Flush(FlushOptions()); // A stray Flush
-
- batch.Delete("c");
- dbfull()->Write(WriteOptions(), &batch);
- ASSERT_EQ(AllEntriesFor("c"), "[ DEL, d ]"); // Delete issued
- batch.Clear();
-
- delete options.filter_policy;
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, IterEmpty) {
- do {
- Iterator* iter = db_->NewIterator(ReadOptions());
-
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->Seek("foo");
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- delete iter;
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, IterSingle) {
- do {
- ASSERT_OK(Put("a", "va"));
- Iterator* iter = db_->NewIterator(ReadOptions());
-
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->Seek("");
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->Seek("a");
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->Seek("b");
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- delete iter;
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, IterMulti) {
- do {
- ASSERT_OK(Put("a", "va"));
- ASSERT_OK(Put("b", "vb"));
- ASSERT_OK(Put("c", "vc"));
- Iterator* iter = db_->NewIterator(ReadOptions());
-
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "b->vb");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "b->vb");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->Seek("");
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Seek("a");
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Seek("ax");
- ASSERT_EQ(IterStatus(iter), "b->vb");
- iter->Seek("b");
- ASSERT_EQ(IterStatus(iter), "b->vb");
- iter->Seek("z");
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- // Switch from reverse to forward
- iter->SeekToLast();
- iter->Prev();
- iter->Prev();
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "b->vb");
-
- // Switch from forward to reverse
- iter->SeekToFirst();
- iter->Next();
- iter->Next();
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "b->vb");
-
- // Make sure iter stays at snapshot
- ASSERT_OK(Put("a", "va2"));
- ASSERT_OK(Put("a2", "va3"));
- ASSERT_OK(Put("b", "vb2"));
- ASSERT_OK(Put("c", "vc2"));
- ASSERT_OK(Delete("b"));
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "b->vb");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "b->vb");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- delete iter;
- } while (ChangeCompactOptions());
-}
-
-// Check that we can skip over a run of user keys
-// by using reseek rather than sequential scan
-TEST(DBTest, IterReseek) {
- Options options = CurrentOptions();
- options.max_sequential_skip_in_iterations = 3;
- options.create_if_missing = true;
- options.statistics = rocksdb::CreateDBStatistics();
- DestroyAndReopen(&options);
-
- // insert two keys with same userkey and verify that
- // reseek is not invoked. For each of these test cases,
- // verify that we can find the next key "b".
- ASSERT_OK(Put("a", "one"));
- ASSERT_OK(Put("a", "two"));
- ASSERT_OK(Put("b", "bone"));
- Iterator* iter = db_->NewIterator(ReadOptions());
- iter->SeekToFirst();
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), 0);
- ASSERT_EQ(IterStatus(iter), "a->two");
- iter->Next();
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), 0);
- ASSERT_EQ(IterStatus(iter), "b->bone");
- delete iter;
-
- // insert a total of three keys with same userkey and verify
- // that reseek is still not invoked.
- ASSERT_OK(Put("a", "three"));
- iter = db_->NewIterator(ReadOptions());
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->three");
- iter->Next();
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), 0);
- ASSERT_EQ(IterStatus(iter), "b->bone");
- delete iter;
-
- // insert a total of four keys with same userkey and verify
- // that reseek is invoked.
- ASSERT_OK(Put("a", "four"));
- iter = db_->NewIterator(ReadOptions());
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->four");
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), 0);
- iter->Next();
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), 1);
- ASSERT_EQ(IterStatus(iter), "b->bone");
- delete iter;
-
- // Testing reverse iterator
- // At this point, we have three versions of "a" and one version of "b".
- // The reseek statistics is already at 1.
- int num_reseeks = (int)options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION);
-
- // Insert another version of b and assert that reseek is not invoked
- ASSERT_OK(Put("b", "btwo"));
- iter = db_->NewIterator(ReadOptions());
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "b->btwo");
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), num_reseeks);
- iter->Prev();
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), num_reseeks+1);
- ASSERT_EQ(IterStatus(iter), "a->four");
- delete iter;
-
- // insert two more versions of b. This makes a total of 4 versions
- // of b and 4 versions of a.
- ASSERT_OK(Put("b", "bthree"));
- ASSERT_OK(Put("b", "bfour"));
- iter = db_->NewIterator(ReadOptions());
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "b->bfour");
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), num_reseeks + 2);
- iter->Prev();
-
- // the previous Prev call should have invoked reseek
- ASSERT_EQ(options.statistics.get()->getTickerCount(
- NUMBER_OF_RESEEKS_IN_ITERATION), num_reseeks + 3);
- ASSERT_EQ(IterStatus(iter), "a->four");
- delete iter;
-}
-
-TEST(DBTest, IterSmallAndLargeMix) {
- do {
- ASSERT_OK(Put("a", "va"));
- ASSERT_OK(Put("b", std::string(100000, 'b')));
- ASSERT_OK(Put("c", "vc"));
- ASSERT_OK(Put("d", std::string(100000, 'd')));
- ASSERT_OK(Put("e", std::string(100000, 'e')));
-
- Iterator* iter = db_->NewIterator(ReadOptions());
-
- iter->SeekToFirst();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "b->" + std::string(100000, 'b'));
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "d->" + std::string(100000, 'd'));
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "e->" + std::string(100000, 'e'));
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- iter->SeekToLast();
- ASSERT_EQ(IterStatus(iter), "e->" + std::string(100000, 'e'));
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "d->" + std::string(100000, 'd'));
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "c->vc");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "b->" + std::string(100000, 'b'));
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "a->va");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "(invalid)");
-
- delete iter;
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, IterMultiWithDelete) {
- do {
- ASSERT_OK(Put("a", "va"));
- ASSERT_OK(Put("b", "vb"));
- ASSERT_OK(Put("c", "vc"));
- ASSERT_OK(Delete("b"));
- ASSERT_EQ("NOT_FOUND", Get("b"));
-
- Iterator* iter = db_->NewIterator(ReadOptions());
- iter->Seek("c");
- ASSERT_EQ(IterStatus(iter), "c->vc");
- if (!CurrentOptions().merge_operator) {
- // TODO: merge operator does not support backward iteration yet
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "a->va");
- }
- delete iter;
- } while (ChangeOptions());
-}
-
-TEST(DBTest, IterPrevMaxSkip) {
- do {
- for (int i = 0; i < 2; i++) {
- db_->Put(WriteOptions(), "key1", "v1");
- db_->Put(WriteOptions(), "key2", "v2");
- db_->Put(WriteOptions(), "key3", "v3");
- db_->Put(WriteOptions(), "key4", "v4");
- db_->Put(WriteOptions(), "key5", "v5");
- }
-
- VerifyIterLast("key5->v5");
-
- ASSERT_OK(db_->Delete(WriteOptions(), "key5"));
- VerifyIterLast("key4->v4");
-
- ASSERT_OK(db_->Delete(WriteOptions(), "key4"));
- VerifyIterLast("key3->v3");
-
- ASSERT_OK(db_->Delete(WriteOptions(), "key3"));
- VerifyIterLast("key2->v2");
-
- ASSERT_OK(db_->Delete(WriteOptions(), "key2"));
- VerifyIterLast("key1->v1");
-
- ASSERT_OK(db_->Delete(WriteOptions(), "key1"));
- VerifyIterLast("(invalid)");
- } while (ChangeOptions(kSkipMergePut));
-}
-
-TEST(DBTest, IterWithSnapshot) {
- do {
- ASSERT_OK(Put("key1", "val1"));
- ASSERT_OK(Put("key2", "val2"));
- ASSERT_OK(Put("key3", "val3"));
- ASSERT_OK(Put("key4", "val4"));
- ASSERT_OK(Put("key5", "val5"));
-
- const Snapshot *snapshot = db_->GetSnapshot();
- ReadOptions options;
- options.snapshot = snapshot;
- Iterator* iter = db_->NewIterator(options);
-
- // Put more values after the snapshot
- ASSERT_OK(Put("key100", "val100"));
- ASSERT_OK(Put("key101", "val101"));
-
- iter->Seek("key5");
- ASSERT_EQ(IterStatus(iter), "key5->val5");
- if (!CurrentOptions().merge_operator) {
- // TODO: merge operator does not support backward iteration yet
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "key4->val4");
- iter->Prev();
- ASSERT_EQ(IterStatus(iter), "key3->val3");
-
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "key4->val4");
- iter->Next();
- ASSERT_EQ(IterStatus(iter), "key5->val5");
- iter->Next();
- ASSERT_TRUE(!iter->Valid());
- }
- db_->ReleaseSnapshot(snapshot);
- delete iter;
- } while (ChangeOptions());
-}
-
-TEST(DBTest, Recover) {
- do {
- ASSERT_OK(Put("foo", "v1"));
- ASSERT_OK(Put("baz", "v5"));
-
- Reopen();
- ASSERT_EQ("v1", Get("foo"));
-
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_EQ("v5", Get("baz"));
- ASSERT_OK(Put("bar", "v2"));
- ASSERT_OK(Put("foo", "v3"));
-
- Reopen();
- ASSERT_EQ("v3", Get("foo"));
- ASSERT_OK(Put("foo", "v4"));
- ASSERT_EQ("v4", Get("foo"));
- ASSERT_EQ("v2", Get("bar"));
- ASSERT_EQ("v5", Get("baz"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, RollLog) {
- do {
- ASSERT_OK(Put("foo", "v1"));
- ASSERT_OK(Put("baz", "v5"));
-
- Reopen();
- for (int i = 0; i < 10; i++) {
- Reopen();
- }
- ASSERT_OK(Put("foo", "v4"));
- for (int i = 0; i < 10; i++) {
- Reopen();
- }
- } while (ChangeOptions());
-}
-
-TEST(DBTest, WAL) {
- do {
- Options options = CurrentOptions();
- WriteOptions writeOpt = WriteOptions();
- writeOpt.disableWAL = true;
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v1"));
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v1"));
-
- Reopen();
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_EQ("v1", Get("bar"));
-
- writeOpt.disableWAL = false;
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v2"));
- writeOpt.disableWAL = true;
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v2"));
-
- Reopen();
- // Both value's should be present.
- ASSERT_EQ("v2", Get("bar"));
- ASSERT_EQ("v2", Get("foo"));
-
- writeOpt.disableWAL = true;
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v3"));
- writeOpt.disableWAL = false;
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v3"));
-
- Reopen();
- // again both values should be present.
- ASSERT_EQ("v3", Get("foo"));
- ASSERT_EQ("v3", Get("bar"));
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, CheckLock) {
- do {
- DB* localdb;
- Options options = CurrentOptions();
- ASSERT_OK(TryReopen(&options));
-
- // second open should fail
- ASSERT_TRUE(!(PureReopen(&options, &localdb)).ok());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, FlushMultipleMemtable) {
- do {
- Options options = CurrentOptions();
- WriteOptions writeOpt = WriteOptions();
- writeOpt.disableWAL = true;
- options.max_write_buffer_number = 4;
- options.min_write_buffer_number_to_merge = 3;
- Reopen(&options);
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v1"));
- dbfull()->Flush(FlushOptions());
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v1"));
-
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_EQ("v1", Get("bar"));
- dbfull()->Flush(FlushOptions());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, NumImmutableMemTable) {
- do {
- Options options = CurrentOptions();
- WriteOptions writeOpt = WriteOptions();
- writeOpt.disableWAL = true;
- options.max_write_buffer_number = 4;
- options.min_write_buffer_number_to_merge = 3;
- options.write_buffer_size = 1000000;
- Reopen(&options);
-
- std::string big_value(1000000, 'x');
- std::string num;
-
- ASSERT_OK(dbfull()->Put(writeOpt, "k1", big_value));
- ASSERT_TRUE(dbfull()->GetProperty("rocksdb.num-immutable-mem-table", &num));
- ASSERT_EQ(num, "0");
-
- ASSERT_OK(dbfull()->Put(writeOpt, "k2", big_value));
- ASSERT_TRUE(dbfull()->GetProperty("rocksdb.num-immutable-mem-table", &num));
- ASSERT_EQ(num, "1");
-
- ASSERT_OK(dbfull()->Put(writeOpt, "k3", big_value));
- ASSERT_TRUE(dbfull()->GetProperty("rocksdb.num-immutable-mem-table", &num));
- ASSERT_EQ(num, "2");
-
- dbfull()->Flush(FlushOptions());
- ASSERT_TRUE(dbfull()->GetProperty("rocksdb.num-immutable-mem-table", &num));
- ASSERT_EQ(num, "0");
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, FLUSH) {
- do {
- Options options = CurrentOptions();
- WriteOptions writeOpt = WriteOptions();
- writeOpt.disableWAL = true;
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v1"));
- // this will now also flush the last 2 writes
- dbfull()->Flush(FlushOptions());
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v1"));
-
- Reopen();
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_EQ("v1", Get("bar"));
-
- writeOpt.disableWAL = true;
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v2"));
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v2"));
- dbfull()->Flush(FlushOptions());
-
- Reopen();
- ASSERT_EQ("v2", Get("bar"));
- ASSERT_EQ("v2", Get("foo"));
-
- writeOpt.disableWAL = false;
- ASSERT_OK(dbfull()->Put(writeOpt, "bar", "v3"));
- ASSERT_OK(dbfull()->Put(writeOpt, "foo", "v3"));
- dbfull()->Flush(FlushOptions());
-
- Reopen();
- // 'foo' should be there because its put
- // has WAL enabled.
- ASSERT_EQ("v3", Get("foo"));
- ASSERT_EQ("v3", Get("bar"));
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, RecoveryWithEmptyLog) {
- do {
- ASSERT_OK(Put("foo", "v1"));
- ASSERT_OK(Put("foo", "v2"));
- Reopen();
- Reopen();
- ASSERT_OK(Put("foo", "v3"));
- Reopen();
- ASSERT_EQ("v3", Get("foo"));
- } while (ChangeOptions());
-}
-
-// Check that writes done during a memtable compaction are recovered
-// if the database is shutdown during the memtable compaction.
-TEST(DBTest, RecoverDuringMemtableCompaction) {
- do {
- Options options = CurrentOptions();
- options.env = env_;
- options.write_buffer_size = 1000000;
- Reopen(&options);
-
- // Trigger a long memtable compaction and reopen the database during it
- ASSERT_OK(Put("foo", "v1")); // Goes to 1st log file
- ASSERT_OK(Put("big1", std::string(10000000, 'x'))); // Fills memtable
- ASSERT_OK(Put("big2", std::string(1000, 'y'))); // Triggers compaction
- ASSERT_OK(Put("bar", "v2")); // Goes to new log file
-
- Reopen(&options);
- ASSERT_EQ("v1", Get("foo"));
- ASSERT_EQ("v2", Get("bar"));
- ASSERT_EQ(std::string(10000000, 'x'), Get("big1"));
- ASSERT_EQ(std::string(1000, 'y'), Get("big2"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, MinorCompactionsHappen) {
- do {
- Options options = CurrentOptions();
- options.write_buffer_size = 10000;
- Reopen(&options);
-
- const int N = 500;
-
- int starting_num_tables = TotalTableFiles();
- for (int i = 0; i < N; i++) {
- ASSERT_OK(Put(Key(i), Key(i) + std::string(1000, 'v')));
- }
- int ending_num_tables = TotalTableFiles();
- ASSERT_GT(ending_num_tables, starting_num_tables);
-
- for (int i = 0; i < N; i++) {
- ASSERT_EQ(Key(i) + std::string(1000, 'v'), Get(Key(i)));
- }
-
- Reopen();
-
- for (int i = 0; i < N; i++) {
- ASSERT_EQ(Key(i) + std::string(1000, 'v'), Get(Key(i)));
- }
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, ManifestRollOver) {
- do {
- Options options = CurrentOptions();
- options.max_manifest_file_size = 10 ; // 10 bytes
- Reopen(&options);
- {
- ASSERT_OK(Put("manifest_key1", std::string(1000, '1')));
- ASSERT_OK(Put("manifest_key2", std::string(1000, '2')));
- ASSERT_OK(Put("manifest_key3", std::string(1000, '3')));
- uint64_t manifest_before_flush =
- dbfull()->TEST_Current_Manifest_FileNo();
- dbfull()->Flush(FlushOptions()); // This should trigger LogAndApply.
- uint64_t manifest_after_flush =
- dbfull()->TEST_Current_Manifest_FileNo();
- ASSERT_GT(manifest_after_flush, manifest_before_flush);
- Reopen(&options);
- ASSERT_GT(dbfull()->TEST_Current_Manifest_FileNo(),
- manifest_after_flush);
- // check if a new manifest file got inserted or not.
- ASSERT_EQ(std::string(1000, '1'), Get("manifest_key1"));
- ASSERT_EQ(std::string(1000, '2'), Get("manifest_key2"));
- ASSERT_EQ(std::string(1000, '3'), Get("manifest_key3"));
- }
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, IdentityAcrossRestarts) {
- do {
- std::string idfilename = IdentityFileName(dbname_);
- unique_ptr<SequentialFile> idfile;
- const EnvOptions soptions;
- ASSERT_OK(env_->NewSequentialFile(idfilename, &idfile, soptions));
- char buffer1[100];
- Slice id1;
- ASSERT_OK(idfile->Read(100, &id1, buffer1));
-
- Options options = CurrentOptions();
- Reopen(&options);
- char buffer2[100];
- Slice id2;
- ASSERT_OK(env_->NewSequentialFile(idfilename, &idfile, soptions));
- ASSERT_OK(idfile->Read(100, &id2, buffer2));
- // id1 should match id2 because identity was not regenerated
- ASSERT_EQ(id1.ToString(), id2.ToString());
-
- ASSERT_OK(env_->DeleteFile(idfilename));
- Reopen(&options);
- char buffer3[100];
- Slice id3;
- ASSERT_OK(env_->NewSequentialFile(idfilename, &idfile, soptions));
- ASSERT_OK(idfile->Read(100, &id3, buffer3));
- // id1 should NOT match id2 because identity was regenerated
- ASSERT_NE(id1.ToString(0), id3.ToString());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, RecoverWithLargeLog) {
- do {
- {
- Options options = CurrentOptions();
- Reopen(&options);
- ASSERT_OK(Put("big1", std::string(200000, '1')));
- ASSERT_OK(Put("big2", std::string(200000, '2')));
- ASSERT_OK(Put("small3", std::string(10, '3')));
- ASSERT_OK(Put("small4", std::string(10, '4')));
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- }
-
- // Make sure that if we re-open with a small write buffer size that
- // we flush table files in the middle of a large log file.
- Options options = CurrentOptions();
- options.write_buffer_size = 100000;
- Reopen(&options);
- ASSERT_EQ(NumTableFilesAtLevel(0), 3);
- ASSERT_EQ(std::string(200000, '1'), Get("big1"));
- ASSERT_EQ(std::string(200000, '2'), Get("big2"));
- ASSERT_EQ(std::string(10, '3'), Get("small3"));
- ASSERT_EQ(std::string(10, '4'), Get("small4"));
- ASSERT_GT(NumTableFilesAtLevel(0), 1);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, CompactionsGenerateMultipleFiles) {
- Options options = CurrentOptions();
- options.write_buffer_size = 100000000; // Large write buffer
- Reopen(&options);
-
- Random rnd(301);
-
- // Write 8MB (80 values, each 100K)
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- std::vector<std::string> values;
- for (int i = 0; i < 80; i++) {
- values.push_back(RandomString(&rnd, 100000));
- ASSERT_OK(Put(Key(i), values[i]));
- }
-
- // Reopening moves updates to level-0
- Reopen(&options);
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
-
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_GT(NumTableFilesAtLevel(1), 1);
- for (int i = 0; i < 80; i++) {
- ASSERT_EQ(Get(Key(i)), values[i]);
- }
-}
-
-TEST(DBTest, CompressedCache) {
- int num_iter = 80;
-
- // Run this test three iterations.
- // Iteration 1: only a uncompressed block cache
- // Iteration 2: only a compressed block cache
- // Iteration 3: both block cache and compressed cache
- for (int iter = 0; iter < 3; iter++) {
- Options options = CurrentOptions();
- options.write_buffer_size = 64*1024; // small write buffer
- options.statistics = rocksdb::CreateDBStatistics();
-
- switch (iter) {
- case 0:
- // only uncompressed block cache
- options.block_cache = NewLRUCache(8*1024);
- options.block_cache_compressed = nullptr;
- break;
- case 1:
- // no block cache, only compressed cache
- options.no_block_cache = true;
- options.block_cache = nullptr;
- options.block_cache_compressed = NewLRUCache(8*1024);
- break;
- case 2:
- // both compressed and uncompressed block cache
- options.block_cache = NewLRUCache(1024);
- options.block_cache_compressed = NewLRUCache(8*1024);
- break;
- default:
- ASSERT_TRUE(false);
- }
- Reopen(&options);
-
- Random rnd(301);
-
- // Write 8MB (80 values, each 100K)
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- std::vector<std::string> values;
- std::string str;
- for (int i = 0; i < num_iter; i++) {
- if (i % 4 == 0) { // high compression ratio
- str = RandomString(&rnd, 1000);
- }
- values.push_back(str);
- ASSERT_OK(Put(Key(i), values[i]));
- }
-
- // flush all data from memtable so that reads are from block cache
- dbfull()->Flush(FlushOptions());
-
- for (int i = 0; i < num_iter; i++) {
- ASSERT_EQ(Get(Key(i)), values[i]);
- }
-
- // check that we triggered the appropriate code paths in the cache
- switch (iter) {
- case 0:
- // only uncompressed block cache
- ASSERT_GT(options.statistics.get()->getTickerCount(BLOCK_CACHE_MISS),
- 0);
- ASSERT_EQ(options.statistics.get()->getTickerCount
- (BLOCK_CACHE_COMPRESSED_MISS), 0);
- break;
- case 1:
- // no block cache, only compressed cache
- ASSERT_EQ(options.statistics.get()->getTickerCount(BLOCK_CACHE_MISS),
- 0);
- ASSERT_GT(options.statistics.get()->getTickerCount
- (BLOCK_CACHE_COMPRESSED_MISS), 0);
- break;
- case 2:
- // both compressed and uncompressed block cache
- ASSERT_GT(options.statistics.get()->getTickerCount(BLOCK_CACHE_MISS),
- 0);
- ASSERT_GT(options.statistics.get()->getTickerCount
- (BLOCK_CACHE_COMPRESSED_MISS), 0);
- break;
- default:
- ASSERT_TRUE(false);
- }
- }
-}
-
-TEST(DBTest, CompactionTrigger) {
- Options options = CurrentOptions();
- options.write_buffer_size = 100<<10; //100KB
- options.num_levels = 3;
- options.max_mem_compaction_level = 0;
- options.level0_file_num_compaction_trigger = 3;
- Reopen(&options);
-
- Random rnd(301);
-
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger - 1;
- num++) {
- std::vector<std::string> values;
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- values.push_back(RandomString(&rnd, 10000));
- ASSERT_OK(Put(Key(i), values[i]));
- }
- dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 1);
- }
-
- //generate one more file in level-0, and should trigger level-0 compaction
- std::vector<std::string> values;
- for (int i = 0; i < 12; i++) {
- values.push_back(RandomString(&rnd, 10000));
- ASSERT_OK(Put(Key(i), values[i]));
- }
- dbfull()->TEST_WaitForCompact();
-
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 1);
-}
-
-TEST(DBTest, UniversalCompactionTrigger) {
- Options options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- options.write_buffer_size = 100<<10; //100KB
- // trigger compaction if there are >= 4 files
- options.level0_file_num_compaction_trigger = 4;
- Reopen(&options);
-
- Random rnd(301);
- int key_idx = 0;
-
- // Stage 1:
- // Generate a set of files at level 0, but don't trigger level-0
- // compaction.
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger-1;
- num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 1);
- }
-
- // Generate one more file at level-0, which should trigger level-0
- // compaction.
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForCompact();
- // Suppose each file flushed from mem table has size 1. Now we compact
- // (level0_file_num_compaction_trigger+1)=4 files and should have a big
- // file of size 4.
- ASSERT_EQ(NumTableFilesAtLevel(0), 1);
- for (int i = 1; i < options.num_levels ; i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-
- // Stage 2:
- // Now we have one file at level 0, with size 4. We also have some data in
- // mem table. Let's continue generating new files at level 0, but don't
- // trigger level-0 compaction.
- // First, clean up memtable before inserting new data. This will generate
- // a level-0 file, with size around 0.4 (according to previously written
- // data amount).
- dbfull()->Flush(FlushOptions());
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger-3;
- num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 3);
- }
-
- // Generate one more file at level-0, which should trigger level-0
- // compaction.
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForCompact();
- // Before compaction, we have 4 files at level 0, with size 4, 0.4, 1, 1.
- // After comapction, we should have 2 files, with size 4, 2.4.
- ASSERT_EQ(NumTableFilesAtLevel(0), 2);
- for (int i = 1; i < options.num_levels ; i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-
- // Stage 3:
- // Now we have 2 files at level 0, with size 4 and 2.4. Continue
- // generating new files at level 0.
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger-3;
- num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 3);
- }
-
- // Generate one more file at level-0, which should trigger level-0
- // compaction.
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForCompact();
- // Before compaction, we have 4 files at level 0, with size 4, 2.4, 1, 1.
- // After comapction, we should have 3 files, with size 4, 2.4, 2.
- ASSERT_EQ(NumTableFilesAtLevel(0), 3);
- for (int i = 1; i < options.num_levels ; i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-
- // Stage 4:
- // Now we have 3 files at level 0, with size 4, 2.4, 2. Let's generate a
- // new file of size 1.
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForCompact();
- // Level-0 compaction is triggered, but no file will be picked up.
- ASSERT_EQ(NumTableFilesAtLevel(0), 4);
- for (int i = 1; i < options.num_levels ; i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-
- // Stage 5:
- // Now we have 4 files at level 0, with size 4, 2.4, 2, 1. Let's generate
- // a new file of size 1.
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForCompact();
- // All files at level 0 will be compacted into a single one.
- ASSERT_EQ(NumTableFilesAtLevel(0), 1);
- for (int i = 1; i < options.num_levels ; i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-}
-
-TEST(DBTest, UniversalCompactionSizeAmplification) {
- Options options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- options.write_buffer_size = 100<<10; //100KB
- options.level0_file_num_compaction_trigger = 3;
-
- // Trigger compaction if size amplification exceeds 110%
- options.compaction_options_universal.
- max_size_amplification_percent = 110;
- Reopen(&options);
-
- Random rnd(301);
- int key_idx = 0;
-
- // Generate two files in Level 0. Both files are approx the same size.
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger-1;
- num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 1);
- }
- ASSERT_EQ(NumTableFilesAtLevel(0), 2);
-
- // Flush whatever is remaining in memtable. This is typically
- // small, which should not trigger size ratio based compaction
- // but will instead trigger size amplification.
- dbfull()->Flush(FlushOptions());
-
- dbfull()->TEST_WaitForCompact();
-
- // Verify that size amplification did occur
- ASSERT_EQ(NumTableFilesAtLevel(0), 1);
-}
-
-TEST(DBTest, UniversalCompactionOptions) {
- Options options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- options.write_buffer_size = 100<<10; //100KB
- options.level0_file_num_compaction_trigger = 4;
- options.num_levels = 1;
- options.compaction_options_universal.compression_size_percent = -1;
- Reopen(&options);
-
- Random rnd(301);
- int key_idx = 0;
-
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger;
- num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), RandomString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
-
- if (num < options.level0_file_num_compaction_trigger - 1) {
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 1);
- }
- }
-
- dbfull()->TEST_WaitForCompact();
- ASSERT_EQ(NumTableFilesAtLevel(0), 1);
- for (int i = 1; i < options.num_levels ; i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-}
-
-TEST(DBTest, UniversalCompactionCompressRatio1) {
- Options options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- options.write_buffer_size = 100<<10; //100KB
- options.level0_file_num_compaction_trigger = 2;
- options.num_levels = 1;
- options.compaction_options_universal.compression_size_percent = 70;
- Reopen(&options);
-
- Random rnd(301);
- int key_idx = 0;
-
- // The first compaction (2) is compressed.
- for (int num = 0; num < 2; num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), CompressibleString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- dbfull()->TEST_WaitForCompact();
- }
- ASSERT_LT((int ) dbfull()->TEST_GetLevel0TotalSize(), 120000 * 2 * 0.9);
-
- // The second compaction (4) is compressed
- for (int num = 0; num < 2; num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), CompressibleString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- dbfull()->TEST_WaitForCompact();
- }
- ASSERT_LT((int ) dbfull()->TEST_GetLevel0TotalSize(), 120000 * 4 * 0.9);
-
- // The third compaction (2 4) is compressed since this time it is
- // (1 1 3.2) and 3.2/5.2 doesn't reach ratio.
- for (int num = 0; num < 2; num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), CompressibleString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- dbfull()->TEST_WaitForCompact();
- }
- ASSERT_LT((int ) dbfull()->TEST_GetLevel0TotalSize(), 120000 * 6 * 0.9);
-
- // When we start for the compaction up to (2 4 8), the latest
- // compressed is not compressed.
- for (int num = 0; num < 8; num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), CompressibleString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- dbfull()->TEST_WaitForCompact();
- }
- ASSERT_GT((int ) dbfull()->TEST_GetLevel0TotalSize(),
- 120000 * 12 * 0.8 + 110000 * 2);
-}
-
-TEST(DBTest, UniversalCompactionCompressRatio2) {
- Options options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- options.write_buffer_size = 100<<10; //100KB
- options.level0_file_num_compaction_trigger = 2;
- options.num_levels = 1;
- options.compaction_options_universal.compression_size_percent = 95;
- Reopen(&options);
-
- Random rnd(301);
- int key_idx = 0;
-
- // When we start for the compaction up to (2 4 8), the latest
- // compressed is compressed given the size ratio to compress.
- for (int num = 0; num < 14; num++) {
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- ASSERT_OK(Put(Key(key_idx), CompressibleString(&rnd, 10000)));
- key_idx++;
- }
- dbfull()->TEST_WaitForFlushMemTable();
- dbfull()->TEST_WaitForCompact();
- }
- ASSERT_LT((int ) dbfull()->TEST_GetLevel0TotalSize(),
- 120000 * 12 * 0.8 + 110000 * 2);
-}
-
-TEST(DBTest, ConvertCompactionStyle) {
- Random rnd(301);
- int max_key_level_insert = 200;
- int max_key_universal_insert = 600;
-
- // Stage 1: generate a db with level compaction
- Options options = CurrentOptions();
- options.write_buffer_size = 100<<10; //100KB
- options.num_levels = 4;
- options.level0_file_num_compaction_trigger = 3;
- options.max_bytes_for_level_base = 500<<10; // 500KB
- options.max_bytes_for_level_multiplier = 1;
- options.target_file_size_base = 200<<10; // 200KB
- options.target_file_size_multiplier = 1;
- Reopen(&options);
-
- for (int i = 0; i <= max_key_level_insert; i++) {
- // each value is 10K
- ASSERT_OK(Put(Key(i), RandomString(&rnd, 10000)));
- }
- dbfull()->Flush(FlushOptions());
- dbfull()->TEST_WaitForCompact();
-
- ASSERT_GT(TotalTableFiles(), 1);
- int non_level0_num_files = 0;
- for (int i = 1; i < dbfull()->NumberLevels(); i++) {
- non_level0_num_files += NumTableFilesAtLevel(i);
- }
- ASSERT_GT(non_level0_num_files, 0);
-
- // Stage 2: reopen with universal compaction - should fail
- options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- Status s = TryReopen(&options);
- ASSERT_TRUE(s.IsInvalidArgument());
-
- // Stage 3: compact into a single file and move the file to level 0
- options = CurrentOptions();
- options.disable_auto_compactions = true;
- options.target_file_size_base = INT_MAX;
- options.target_file_size_multiplier = 1;
- options.max_bytes_for_level_base = INT_MAX;
- options.max_bytes_for_level_multiplier = 1;
- Reopen(&options);
-
- dbfull()->CompactRange(nullptr, nullptr,
- true /* reduce level */,
- 0 /* reduce to level 0 */);
-
- for (int i = 0; i < dbfull()->NumberLevels(); i++) {
- int num = NumTableFilesAtLevel(i);
- if (i == 0) {
- ASSERT_EQ(num, 1);
- } else {
- ASSERT_EQ(num, 0);
- }
- }
-
- // Stage 4: re-open in universal compaction style and do some db operations
- options = CurrentOptions();
- options.compaction_style = kCompactionStyleUniversal;
- options.write_buffer_size = 100<<10; //100KB
- options.level0_file_num_compaction_trigger = 3;
- Reopen(&options);
-
- for (int i = max_key_level_insert / 2; i <= max_key_universal_insert; i++) {
- ASSERT_OK(Put(Key(i), RandomString(&rnd, 10000)));
- }
- dbfull()->Flush(FlushOptions());
- dbfull()->TEST_WaitForCompact();
-
- for (int i = 1; i < dbfull()->NumberLevels(); i++) {
- ASSERT_EQ(NumTableFilesAtLevel(i), 0);
- }
-
- // verify keys inserted in both level compaction style and universal
- // compaction style
- std::string keys_in_db;
- Iterator* iter = dbfull()->NewIterator(ReadOptions());
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- keys_in_db.append(iter->key().ToString());
- keys_in_db.push_back(',');
- }
- delete iter;
-
- std::string expected_keys;
- for (int i = 0; i <= max_key_universal_insert; i++) {
- expected_keys.append(Key(i));
- expected_keys.push_back(',');
- }
-
- ASSERT_EQ(keys_in_db, expected_keys);
-}
-
-void MinLevelHelper(DBTest* self, Options& options) {
- Random rnd(301);
-
- for (int num = 0;
- num < options.level0_file_num_compaction_trigger - 1;
- num++)
- {
- std::vector<std::string> values;
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- values.push_back(RandomString(&rnd, 10000));
- ASSERT_OK(self->Put(Key(i), values[i]));
- }
- self->dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(self->NumTableFilesAtLevel(0), num + 1);
- }
-
- //generate one more file in level-0, and should trigger level-0 compaction
- std::vector<std::string> values;
- for (int i = 0; i < 12; i++) {
- values.push_back(RandomString(&rnd, 10000));
- ASSERT_OK(self->Put(Key(i), values[i]));
- }
- self->dbfull()->TEST_WaitForCompact();
-
- ASSERT_EQ(self->NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(self->NumTableFilesAtLevel(1), 1);
-}
-
-// returns false if the calling-Test should be skipped
-bool MinLevelToCompress(CompressionType& type, Options& options, int wbits,
- int lev, int strategy) {
- fprintf(stderr, "Test with compression options : window_bits = %d, level = %d, strategy = %d}\n", wbits, lev, strategy);
- options.write_buffer_size = 100<<10; //100KB
- options.num_levels = 3;
- options.max_mem_compaction_level = 0;
- options.level0_file_num_compaction_trigger = 3;
- options.create_if_missing = true;
-
- if (SnappyCompressionSupported(CompressionOptions(wbits, lev, strategy))) {
- type = kSnappyCompression;
- fprintf(stderr, "using snappy\n");
- } else if (ZlibCompressionSupported(
- CompressionOptions(wbits, lev, strategy))) {
- type = kZlibCompression;
- fprintf(stderr, "using zlib\n");
- } else if (BZip2CompressionSupported(
- CompressionOptions(wbits, lev, strategy))) {
- type = kBZip2Compression;
- fprintf(stderr, "using bzip2\n");
- } else {
- fprintf(stderr, "skipping test, compression disabled\n");
- return false;
- }
- options.compression_per_level.resize(options.num_levels);
-
- // do not compress L0
- for (int i = 0; i < 1; i++) {
- options.compression_per_level[i] = kNoCompression;
- }
- for (int i = 1; i < options.num_levels; i++) {
- options.compression_per_level[i] = type;
- }
- return true;
-}
-
-TEST(DBTest, MinLevelToCompress1) {
- Options options = CurrentOptions();
- CompressionType type;
- if (!MinLevelToCompress(type, options, -14, -1, 0)) {
- return;
- }
- Reopen(&options);
- MinLevelHelper(this, options);
-
- // do not compress L0 and L1
- for (int i = 0; i < 2; i++) {
- options.compression_per_level[i] = kNoCompression;
- }
- for (int i = 2; i < options.num_levels; i++) {
- options.compression_per_level[i] = type;
- }
- DestroyAndReopen(&options);
- MinLevelHelper(this, options);
-}
-
-TEST(DBTest, MinLevelToCompress2) {
- Options options = CurrentOptions();
- CompressionType type;
- if (!MinLevelToCompress(type, options, 15, -1, 0)) {
- return;
- }
- Reopen(&options);
- MinLevelHelper(this, options);
-
- // do not compress L0 and L1
- for (int i = 0; i < 2; i++) {
- options.compression_per_level[i] = kNoCompression;
- }
- for (int i = 2; i < options.num_levels; i++) {
- options.compression_per_level[i] = type;
- }
- DestroyAndReopen(&options);
- MinLevelHelper(this, options);
-}
-
-TEST(DBTest, RepeatedWritesToSameKey) {
- do {
- Options options = CurrentOptions();
- options.env = env_;
- options.write_buffer_size = 100000; // Small write buffer
- Reopen(&options);
-
- // We must have at most one file per level except for level-0,
- // which may have up to kL0_StopWritesTrigger files.
- const int kMaxFiles = dbfull()->NumberLevels() +
- dbfull()->Level0StopWriteTrigger();
-
- Random rnd(301);
- std::string value = RandomString(&rnd, 2 * options.write_buffer_size);
- for (int i = 0; i < 5 * kMaxFiles; i++) {
- Put("key", value);
- ASSERT_LE(TotalTableFiles(), kMaxFiles);
- }
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, InPlaceUpdate) {
- do {
- Options options = CurrentOptions();
- options.create_if_missing = true;
- options.inplace_update_support = true;
- options.env = env_;
- options.write_buffer_size = 100000;
-
- // Update key with values of smaller size
- Reopen(&options);
- int numValues = 10;
- for (int i = numValues; i > 0; i--) {
- std::string value = DummyString(i, 'a');
- ASSERT_OK(Put("key", value));
- ASSERT_EQ(value, Get("key"));
- }
-
- int count = 0;
- Iterator* iter = dbfull()->TEST_NewInternalIterator();
- iter->SeekToFirst();
- ASSERT_EQ(iter->status().ok(), true);
- while (iter->Valid()) {
- ParsedInternalKey ikey;
- ikey.sequence = -1;
- ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
- count++;
- // All updates with the same sequence number.
- ASSERT_EQ(ikey.sequence, (unsigned)1);
- iter->Next();
- }
- // Only 1 instance for that key.
- ASSERT_EQ(count, 1);
- delete iter;
-
- // Update key with values of larger size
- DestroyAndReopen(&options);
- numValues = 10;
- for (int i = 0; i < numValues; i++) {
- std::string value = DummyString(i, 'a');
- ASSERT_OK(Put("key", value));
- ASSERT_EQ(value, Get("key"));
- }
-
- count = 0;
- iter = dbfull()->TEST_NewInternalIterator();
- iter->SeekToFirst();
- ASSERT_EQ(iter->status().ok(), true);
- int seq = numValues;
- while (iter->Valid()) {
- ParsedInternalKey ikey;
- ikey.sequence = -1;
- ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
- count++;
- // No inplace updates. All updates are puts with new seq number
- ASSERT_EQ(ikey.sequence, (unsigned)seq--);
- iter->Next();
- }
- // All 10 updates exist in the internal iterator
- ASSERT_EQ(count, numValues);
- delete iter;
-
-
- } while (ChangeCompactOptions());
-}
-
-// This is a static filter used for filtering
-// kvs during the compaction process.
-static int cfilter_count;
-static std::string NEW_VALUE = "NewValue";
-
-class KeepFilter : public CompactionFilter {
- public:
- virtual bool Filter(int level, const Slice& key,
- const Slice& value, std::string* new_value,
- bool* value_changed) const override {
- cfilter_count++;
- return false;
- }
-
- virtual const char* Name() const override {
- return "KeepFilter";
- }
-
-};
-
-class DeleteFilter : public CompactionFilter {
- public:
- virtual bool Filter(int level, const Slice& key,
- const Slice& value, std::string* new_value,
- bool* value_changed) const override {
- cfilter_count++;
- return true;
- }
-
- virtual const char* Name() const override {
- return "DeleteFilter";
- }
-};
-
-class ChangeFilter : public CompactionFilter {
- public:
- explicit ChangeFilter(int argv) : argv_(argv) {}
-
- virtual bool Filter(int level, const Slice& key,
- const Slice& value, std::string* new_value,
- bool* value_changed) const override {
- assert(argv_ == 100);
- assert(new_value != nullptr);
- *new_value = NEW_VALUE;
- *value_changed = true;
- return false;
- }
-
- virtual const char* Name() const override {
- return "ChangeFilter";
- }
-
- private:
- const int argv_;
-};
-
-class KeepFilterFactory : public CompactionFilterFactory {
- public:
- virtual std::unique_ptr<CompactionFilter>
- CreateCompactionFilter(const CompactionFilter::Context& context) override {
- return std::unique_ptr<CompactionFilter>(new KeepFilter());
- }
-
- virtual const char* Name() const override {
- return "KeepFilterFactory";
- }
-};
-
-class DeleteFilterFactory : public CompactionFilterFactory {
- public:
- virtual std::unique_ptr<CompactionFilter>
- CreateCompactionFilter(const CompactionFilter::Context& context) override {
- return std::unique_ptr<CompactionFilter>(new DeleteFilter());
- }
-
- virtual const char* Name() const override {
- return "DeleteFilterFactory";
- }
-};
-
-class ChangeFilterFactory : public CompactionFilterFactory {
- public:
- explicit ChangeFilterFactory(int argv) : argv_(argv) {}
-
- virtual std::unique_ptr<CompactionFilter>
- CreateCompactionFilter(const CompactionFilter::Context& context) override {
- return std::unique_ptr<CompactionFilter>(new ChangeFilter(argv_));
- }
-
- virtual const char* Name() const override {
- return "ChangeFilterFactory";
- }
-
- private:
- const int argv_;
-};
-
-TEST(DBTest, CompactionFilter) {
- Options options = CurrentOptions();
- options.num_levels = 3;
- options.max_mem_compaction_level = 0;
- options.compaction_filter_factory = std::make_shared<KeepFilterFactory>();
- Reopen(&options);
-
- // Write 100K keys, these are written to a few files in L0.
- const std::string value(10, 'x');
- for (int i = 0; i < 100000; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- Put(key, value);
- }
- dbfull()->TEST_FlushMemTable();
-
- // Push all files to the highest level L2. Verify that
- // the compaction is each level invokes the filter for
- // all the keys in that level.
- cfilter_count = 0;
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- ASSERT_EQ(cfilter_count, 100000);
- cfilter_count = 0;
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_EQ(cfilter_count, 100000);
-
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 0);
- ASSERT_NE(NumTableFilesAtLevel(2), 0);
- cfilter_count = 0;
-
- // All the files are in the lowest level.
- // Verify that all but the 100001st record
- // has sequence number zero. The 100001st record
- // is at the tip of this snapshot and cannot
- // be zeroed out.
- // TODO: figure out sequence number squashtoo
- int count = 0;
- int total = 0;
- Iterator* iter = dbfull()->TEST_NewInternalIterator();
- iter->SeekToFirst();
- ASSERT_OK(iter->status());
- while (iter->Valid()) {
- ParsedInternalKey ikey;
- ikey.sequence = -1;
- ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
- total++;
- if (ikey.sequence != 0) {
- count++;
- }
- iter->Next();
- }
- ASSERT_EQ(total, 100000);
- ASSERT_EQ(count, 1);
- delete iter;
-
- // overwrite all the 100K keys once again.
- for (int i = 0; i < 100000; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- Put(key, value);
- }
- dbfull()->TEST_FlushMemTable();
-
- // push all files to the highest level L2. This
- // means that all keys should pass at least once
- // via the compaction filter
- cfilter_count = 0;
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- ASSERT_EQ(cfilter_count, 100000);
- cfilter_count = 0;
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_EQ(cfilter_count, 100000);
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 0);
- ASSERT_NE(NumTableFilesAtLevel(2), 0);
-
- // create a new database with the compaction
- // filter in such a way that it deletes all keys
- options.compaction_filter_factory = std::make_shared<DeleteFilterFactory>();
- options.create_if_missing = true;
- DestroyAndReopen(&options);
-
- // write all the keys once again.
- for (int i = 0; i < 100000; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- Put(key, value);
- }
- dbfull()->TEST_FlushMemTable();
- ASSERT_NE(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 0);
- ASSERT_EQ(NumTableFilesAtLevel(2), 0);
-
- // Push all files to the highest level L2. This
- // triggers the compaction filter to delete all keys,
- // verify that at the end of the compaction process,
- // nothing is left.
- cfilter_count = 0;
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- ASSERT_EQ(cfilter_count, 100000);
- cfilter_count = 0;
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_EQ(cfilter_count, 0);
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 0);
-
- // Scan the entire database to ensure that nothing is left
- iter = db_->NewIterator(ReadOptions());
- iter->SeekToFirst();
- count = 0;
- while (iter->Valid()) {
- count++;
- iter->Next();
- }
- ASSERT_EQ(count, 0);
- delete iter;
-
- // The sequence number of the remaining record
- // is not zeroed out even though it is at the
- // level Lmax because this record is at the tip
- // TODO: remove the following or design a different
- // test
- count = 0;
- iter = dbfull()->TEST_NewInternalIterator();
- iter->SeekToFirst();
- ASSERT_OK(iter->status());
- while (iter->Valid()) {
- ParsedInternalKey ikey;
- ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
- ASSERT_NE(ikey.sequence, (unsigned)0);
- count++;
- iter->Next();
- }
- ASSERT_EQ(count, 0);
- delete iter;
-}
-
-TEST(DBTest, CompactionFilterWithValueChange) {
- do {
- Options options = CurrentOptions();
- options.num_levels = 3;
- options.max_mem_compaction_level = 0;
- options.compaction_filter_factory =
- std::make_shared<ChangeFilterFactory>(100);
- Reopen(&options);
-
- // Write 100K+1 keys, these are written to a few files
- // in L0. We do this so that the current snapshot points
- // to the 100001 key.The compaction filter is not invoked
- // on keys that are visible via a snapshot because we
- // anyways cannot delete it.
- const std::string value(10, 'x');
- for (int i = 0; i < 100001; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- Put(key, value);
- }
-
- // push all files to lower levels
- dbfull()->TEST_FlushMemTable();
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
-
- // re-write all data again
- for (int i = 0; i < 100001; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- Put(key, value);
- }
-
- // push all files to lower levels. This should
- // invoke the compaction filter for all 100000 keys.
- dbfull()->TEST_FlushMemTable();
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
-
- // verify that all keys now have the new value that
- // was set by the compaction process.
- for (int i = 0; i < 100000; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- std::string newvalue = Get(key);
- ASSERT_EQ(newvalue.compare(NEW_VALUE), 0);
- }
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, SparseMerge) {
- do {
- Options options = CurrentOptions();
- options.compression = kNoCompression;
- Reopen(&options);
-
- FillLevels("A", "Z");
-
- // Suppose there is:
- // small amount of data with prefix A
- // large amount of data with prefix B
- // small amount of data with prefix C
- // and that recent updates have made small changes to all three prefixes.
- // Check that we do not do a compaction that merges all of B in one shot.
- const std::string value(1000, 'x');
- Put("A", "va");
- // Write approximately 100MB of "B" values
- for (int i = 0; i < 100000; i++) {
- char key[100];
- snprintf(key, sizeof(key), "B%010d", i);
- Put(key, value);
- }
- Put("C", "vc");
- dbfull()->TEST_FlushMemTable();
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
-
- // Make sparse update
- Put("A", "va2");
- Put("B100", "bvalue2");
- Put("C", "vc2");
- dbfull()->TEST_FlushMemTable();
-
- // Compactions should not cause us to create a situation where
- // a file overlaps too much data at the next level.
- ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20*1048576);
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20*1048576);
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20*1048576);
- } while (ChangeCompactOptions());
-}
-
-static bool Between(uint64_t val, uint64_t low, uint64_t high) {
- bool result = (val >= low) && (val <= high);
- if (!result) {
- fprintf(stderr, "Value %llu is not in range [%llu, %llu]\n",
- (unsigned long long)(val),
- (unsigned long long)(low),
- (unsigned long long)(high));
- }
- return result;
-}
-
-TEST(DBTest, ApproximateSizes) {
- do {
- Options options = CurrentOptions();
- options.write_buffer_size = 100000000; // Large write buffer
- options.compression = kNoCompression;
- DestroyAndReopen();
-
- ASSERT_TRUE(Between(Size("", "xyz"), 0, 0));
- Reopen(&options);
- ASSERT_TRUE(Between(Size("", "xyz"), 0, 0));
-
- // Write 8MB (80 values, each 100K)
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- const int N = 80;
- static const int S1 = 100000;
- static const int S2 = 105000; // Allow some expansion from metadata
- Random rnd(301);
- for (int i = 0; i < N; i++) {
- ASSERT_OK(Put(Key(i), RandomString(&rnd, S1)));
- }
-
- // 0 because GetApproximateSizes() does not account for memtable space
- ASSERT_TRUE(Between(Size("", Key(50)), 0, 0));
-
- // Check sizes across recovery by reopening a few times
- for (int run = 0; run < 3; run++) {
- Reopen(&options);
-
- for (int compact_start = 0; compact_start < N; compact_start += 10) {
- for (int i = 0; i < N; i += 10) {
- ASSERT_TRUE(Between(Size("", Key(i)), S1*i, S2*i));
- ASSERT_TRUE(Between(Size("", Key(i)+".suffix"), S1*(i+1), S2*(i+1)));
- ASSERT_TRUE(Between(Size(Key(i), Key(i+10)), S1*10, S2*10));
- }
- ASSERT_TRUE(Between(Size("", Key(50)), S1*50, S2*50));
- ASSERT_TRUE(Between(Size("", Key(50)+".suffix"), S1*50, S2*50));
-
- std::string cstart_str = Key(compact_start);
- std::string cend_str = Key(compact_start + 9);
- Slice cstart = cstart_str;
- Slice cend = cend_str;
- dbfull()->TEST_CompactRange(0, &cstart, &cend);
- }
-
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_GT(NumTableFilesAtLevel(1), 0);
- }
- } while (ChangeOptions(kSkipUniversalCompaction));
-}
-
-TEST(DBTest, ApproximateSizes_MixOfSmallAndLarge) {
- do {
- Options options = CurrentOptions();
- options.compression = kNoCompression;
- Reopen();
-
- Random rnd(301);
- std::string big1 = RandomString(&rnd, 100000);
- ASSERT_OK(Put(Key(0), RandomString(&rnd, 10000)));
- ASSERT_OK(Put(Key(1), RandomString(&rnd, 10000)));
- ASSERT_OK(Put(Key(2), big1));
- ASSERT_OK(Put(Key(3), RandomString(&rnd, 10000)));
- ASSERT_OK(Put(Key(4), big1));
- ASSERT_OK(Put(Key(5), RandomString(&rnd, 10000)));
- ASSERT_OK(Put(Key(6), RandomString(&rnd, 300000)));
- ASSERT_OK(Put(Key(7), RandomString(&rnd, 10000)));
-
- // Check sizes across recovery by reopening a few times
- for (int run = 0; run < 3; run++) {
- Reopen(&options);
-
- ASSERT_TRUE(Between(Size("", Key(0)), 0, 0));
- ASSERT_TRUE(Between(Size("", Key(1)), 10000, 11000));
- ASSERT_TRUE(Between(Size("", Key(2)), 20000, 21000));
- ASSERT_TRUE(Between(Size("", Key(3)), 120000, 121000));
- ASSERT_TRUE(Between(Size("", Key(4)), 130000, 131000));
- ASSERT_TRUE(Between(Size("", Key(5)), 230000, 231000));
- ASSERT_TRUE(Between(Size("", Key(6)), 240000, 241000));
- ASSERT_TRUE(Between(Size("", Key(7)), 540000, 541000));
- ASSERT_TRUE(Between(Size("", Key(8)), 550000, 560000));
-
- ASSERT_TRUE(Between(Size(Key(3), Key(5)), 110000, 111000));
-
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- }
- } while (ChangeOptions());
-}
-
-TEST(DBTest, IteratorPinsRef) {
- do {
- Put("foo", "hello");
-
- // Get iterator that will yield the current contents of the DB.
- Iterator* iter = db_->NewIterator(ReadOptions());
-
- // Write to force compactions
- Put("foo", "newvalue1");
- for (int i = 0; i < 100; i++) {
- ASSERT_OK(Put(Key(i), Key(i) + std::string(100000, 'v'))); // 100K values
- }
- Put("foo", "newvalue2");
-
- iter->SeekToFirst();
- ASSERT_TRUE(iter->Valid());
- ASSERT_EQ("foo", iter->key().ToString());
- ASSERT_EQ("hello", iter->value().ToString());
- iter->Next();
- ASSERT_TRUE(!iter->Valid());
- delete iter;
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, Snapshot) {
- do {
- Put("foo", "v1");
- const Snapshot* s1 = db_->GetSnapshot();
- Put("foo", "v2");
- const Snapshot* s2 = db_->GetSnapshot();
- Put("foo", "v3");
- const Snapshot* s3 = db_->GetSnapshot();
-
- Put("foo", "v4");
- ASSERT_EQ("v1", Get("foo", s1));
- ASSERT_EQ("v2", Get("foo", s2));
- ASSERT_EQ("v3", Get("foo", s3));
- ASSERT_EQ("v4", Get("foo"));
-
- db_->ReleaseSnapshot(s3);
- ASSERT_EQ("v1", Get("foo", s1));
- ASSERT_EQ("v2", Get("foo", s2));
- ASSERT_EQ("v4", Get("foo"));
-
- db_->ReleaseSnapshot(s1);
- ASSERT_EQ("v2", Get("foo", s2));
- ASSERT_EQ("v4", Get("foo"));
-
- db_->ReleaseSnapshot(s2);
- ASSERT_EQ("v4", Get("foo"));
- } while (ChangeOptions());
-}
-
-TEST(DBTest, HiddenValuesAreRemoved) {
- do {
- Random rnd(301);
- FillLevels("a", "z");
-
- std::string big = RandomString(&rnd, 50000);
- Put("foo", big);
- Put("pastfoo", "v");
- const Snapshot* snapshot = db_->GetSnapshot();
- Put("foo", "tiny");
- Put("pastfoo2", "v2"); // Advance sequence number one more
-
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_GT(NumTableFilesAtLevel(0), 0);
-
- ASSERT_EQ(big, Get("foo", snapshot));
- ASSERT_TRUE(Between(Size("", "pastfoo"), 50000, 60000));
- db_->ReleaseSnapshot(snapshot);
- ASSERT_EQ(AllEntriesFor("foo"), "[ tiny, " + big + " ]");
- Slice x("x");
- dbfull()->TEST_CompactRange(0, nullptr, &x);
- ASSERT_EQ(AllEntriesFor("foo"), "[ tiny ]");
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_GE(NumTableFilesAtLevel(1), 1);
- dbfull()->TEST_CompactRange(1, nullptr, &x);
- ASSERT_EQ(AllEntriesFor("foo"), "[ tiny ]");
-
- ASSERT_TRUE(Between(Size("", "pastfoo"), 0, 1000));
- } while (ChangeOptions(kSkipUniversalCompaction));
-}
-
-TEST(DBTest, CompactBetweenSnapshots) {
- do {
- Random rnd(301);
- FillLevels("a", "z");
-
- Put("foo", "first");
- const Snapshot* snapshot1 = db_->GetSnapshot();
- Put("foo", "second");
- Put("foo", "third");
- Put("foo", "fourth");
- const Snapshot* snapshot2 = db_->GetSnapshot();
- Put("foo", "fifth");
- Put("foo", "sixth");
-
- // All entries (including duplicates) exist
- // before any compaction is triggered.
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ("sixth", Get("foo"));
- ASSERT_EQ("fourth", Get("foo", snapshot2));
- ASSERT_EQ("first", Get("foo", snapshot1));
- ASSERT_EQ(AllEntriesFor("foo"),
- "[ sixth, fifth, fourth, third, second, first ]");
-
- // After a compaction, "second", "third" and "fifth" should
- // be removed
- FillLevels("a", "z");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ("sixth", Get("foo"));
- ASSERT_EQ("fourth", Get("foo", snapshot2));
- ASSERT_EQ("first", Get("foo", snapshot1));
- ASSERT_EQ(AllEntriesFor("foo"), "[ sixth, fourth, first ]");
-
- // after we release the snapshot1, only two values left
- db_->ReleaseSnapshot(snapshot1);
- FillLevels("a", "z");
- dbfull()->CompactRange(nullptr, nullptr);
-
- // We have only one valid snapshot snapshot2. Since snapshot1 is
- // not valid anymore, "first" should be removed by a compaction.
- ASSERT_EQ("sixth", Get("foo"));
- ASSERT_EQ("fourth", Get("foo", snapshot2));
- ASSERT_EQ(AllEntriesFor("foo"), "[ sixth, fourth ]");
-
- // after we release the snapshot2, only one value should be left
- db_->ReleaseSnapshot(snapshot2);
- FillLevels("a", "z");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ("sixth", Get("foo"));
- ASSERT_EQ(AllEntriesFor("foo"), "[ sixth ]");
-
- } while (ChangeOptions());
-}
-
-TEST(DBTest, DeletionMarkers1) {
- Put("foo", "v1");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- const int last = dbfull()->MaxMemCompactionLevel();
- ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo => v1 is now in last level
-
- // Place a table at level last-1 to prevent merging with preceding mutation
- Put("a", "begin");
- Put("z", "end");
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(last), 1);
- ASSERT_EQ(NumTableFilesAtLevel(last-1), 1);
-
- Delete("foo");
- Put("foo", "v2");
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2, DEL, v1 ]");
- ASSERT_OK(dbfull()->TEST_FlushMemTable()); // Moves to level last-2
- if (CurrentOptions().purge_redundant_kvs_while_flush) {
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2, v1 ]");
- } else {
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2, DEL, v1 ]");
- }
- Slice z("z");
- dbfull()->TEST_CompactRange(last-2, nullptr, &z);
- // DEL eliminated, but v1 remains because we aren't compacting that level
- // (DEL can be eliminated because v2 hides v1).
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2, v1 ]");
- dbfull()->TEST_CompactRange(last-1, nullptr, nullptr);
- // Merging last-1 w/ last, so we are the base level for "foo", so
- // DEL is removed. (as is v1).
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2 ]");
-}
-
-TEST(DBTest, DeletionMarkers2) {
- Put("foo", "v1");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- const int last = dbfull()->MaxMemCompactionLevel();
- ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo => v1 is now in last level
-
- // Place a table at level last-1 to prevent merging with preceding mutation
- Put("a", "begin");
- Put("z", "end");
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(last), 1);
- ASSERT_EQ(NumTableFilesAtLevel(last-1), 1);
-
- Delete("foo");
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v1 ]");
- ASSERT_OK(dbfull()->TEST_FlushMemTable()); // Moves to level last-2
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v1 ]");
- dbfull()->TEST_CompactRange(last-2, nullptr, nullptr);
- // DEL kept: "last" file overlaps
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v1 ]");
- dbfull()->TEST_CompactRange(last-1, nullptr, nullptr);
- // Merging last-1 w/ last, so we are the base level for "foo", so
- // DEL is removed. (as is v1).
- ASSERT_EQ(AllEntriesFor("foo"), "[ ]");
-}
-
-TEST(DBTest, OverlapInLevel0) {
- do {
- int tmp = dbfull()->MaxMemCompactionLevel();
- ASSERT_EQ(tmp, 2) << "Fix test to match config";
-
- //Fill levels 1 and 2 to disable the pushing of new memtables to levels > 0.
- ASSERT_OK(Put("100", "v100"));
- ASSERT_OK(Put("999", "v999"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_OK(Delete("100"));
- ASSERT_OK(Delete("999"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("0,1,1", FilesPerLevel());
-
- // Make files spanning the following ranges in level-0:
- // files[0] 200 .. 900
- // files[1] 300 .. 500
- // Note that files are sorted by smallest key.
- ASSERT_OK(Put("300", "v300"));
- ASSERT_OK(Put("500", "v500"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_OK(Put("200", "v200"));
- ASSERT_OK(Put("600", "v600"));
- ASSERT_OK(Put("900", "v900"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("2,1,1", FilesPerLevel());
-
- // Compact away the placeholder files we created initially
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- dbfull()->TEST_CompactRange(2, nullptr, nullptr);
- ASSERT_EQ("2", FilesPerLevel());
-
- // Do a memtable compaction. Before bug-fix, the compaction would
- // not detect the overlap with level-0 files and would incorrectly place
- // the deletion in a deeper level.
- ASSERT_OK(Delete("600"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("3", FilesPerLevel());
- ASSERT_EQ("NOT_FOUND", Get("600"));
- } while (ChangeOptions(kSkipUniversalCompaction));
-}
-
-TEST(DBTest, L0_CompactionBug_Issue44_a) {
- do {
- Reopen();
- ASSERT_OK(Put("b", "v"));
- Reopen();
- ASSERT_OK(Delete("b"));
- ASSERT_OK(Delete("a"));
- Reopen();
- ASSERT_OK(Delete("a"));
- Reopen();
- ASSERT_OK(Put("a", "v"));
- Reopen();
- Reopen();
- ASSERT_EQ("(a->v)", Contents());
- env_->SleepForMicroseconds(1000000); // Wait for compaction to finish
- ASSERT_EQ("(a->v)", Contents());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, L0_CompactionBug_Issue44_b) {
- do {
- Reopen();
- Put("","");
- Reopen();
- Delete("e");
- Put("","");
- Reopen();
- Put("c", "cv");
- Reopen();
- Put("","");
- Reopen();
- Put("","");
- env_->SleepForMicroseconds(1000000); // Wait for compaction to finish
- Reopen();
- Put("d","dv");
- Reopen();
- Put("","");
- Reopen();
- Delete("d");
- Delete("b");
- Reopen();
- ASSERT_EQ("(->)(c->cv)", Contents());
- env_->SleepForMicroseconds(1000000); // Wait for compaction to finish
- ASSERT_EQ("(->)(c->cv)", Contents());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, ComparatorCheck) {
- class NewComparator : public Comparator {
- public:
- virtual const char* Name() const { return "rocksdb.NewComparator"; }
- virtual int Compare(const Slice& a, const Slice& b) const {
- return BytewiseComparator()->Compare(a, b);
- }
- virtual void FindShortestSeparator(std::string* s, const Slice& l) const {
- BytewiseComparator()->FindShortestSeparator(s, l);
- }
- virtual void FindShortSuccessor(std::string* key) const {
- BytewiseComparator()->FindShortSuccessor(key);
- }
- };
- Options new_options;
- NewComparator cmp;
- do {
- new_options = CurrentOptions();
- new_options.comparator = &cmp;
- Status s = TryReopen(&new_options);
- ASSERT_TRUE(!s.ok());
- ASSERT_TRUE(s.ToString().find("comparator") != std::string::npos)
- << s.ToString();
- } while (ChangeCompactOptions(&new_options));
-}
-
-TEST(DBTest, CustomComparator) {
- class NumberComparator : public Comparator {
- public:
- virtual const char* Name() const { return "test.NumberComparator"; }
- virtual int Compare(const Slice& a, const Slice& b) const {
- return ToNumber(a) - ToNumber(b);
- }
- virtual void FindShortestSeparator(std::string* s, const Slice& l) const {
- ToNumber(*s); // Check format
- ToNumber(l); // Check format
- }
- virtual void FindShortSuccessor(std::string* key) const {
- ToNumber(*key); // Check format
- }
- private:
- static int ToNumber(const Slice& x) {
- // Check that there are no extra characters.
- ASSERT_TRUE(x.size() >= 2 && x[0] == '[' && x[x.size()-1] == ']')
- << EscapeString(x);
- int val;
- char ignored;
- ASSERT_TRUE(sscanf(x.ToString().c_str(), "[%i]%c", &val, &ignored) == 1)
- << EscapeString(x);
- return val;
- }
- };
- Options new_options;
- NumberComparator cmp;
- do {
- new_options = CurrentOptions();
- new_options.create_if_missing = true;
- new_options.comparator = &cmp;
- new_options.filter_policy = nullptr; // Cannot use bloom filters
- new_options.write_buffer_size = 1000; // Compact more often
- DestroyAndReopen(&new_options);
- ASSERT_OK(Put("[10]", "ten"));
- ASSERT_OK(Put("[0x14]", "twenty"));
- for (int i = 0; i < 2; i++) {
- ASSERT_EQ("ten", Get("[10]"));
- ASSERT_EQ("ten", Get("[0xa]"));
- ASSERT_EQ("twenty", Get("[20]"));
- ASSERT_EQ("twenty", Get("[0x14]"));
- ASSERT_EQ("NOT_FOUND", Get("[15]"));
- ASSERT_EQ("NOT_FOUND", Get("[0xf]"));
- Compact("[0]", "[9999]");
- }
-
- for (int run = 0; run < 2; run++) {
- for (int i = 0; i < 1000; i++) {
- char buf[100];
- snprintf(buf, sizeof(buf), "[%d]", i*10);
- ASSERT_OK(Put(buf, buf));
- }
- Compact("[0]", "[1000000]");
- }
- } while (ChangeCompactOptions(&new_options));
-}
-
-TEST(DBTest, ManualCompaction) {
- ASSERT_EQ(dbfull()->MaxMemCompactionLevel(), 2)
- << "Need to update this test to match kMaxMemCompactLevel";
-
- MakeTables(3, "p", "q");
- ASSERT_EQ("1,1,1", FilesPerLevel());
-
- // Compaction range falls before files
- Compact("", "c");
- ASSERT_EQ("1,1,1", FilesPerLevel());
-
- // Compaction range falls after files
- Compact("r", "z");
- ASSERT_EQ("1,1,1", FilesPerLevel());
-
- // Compaction range overlaps files
- Compact("p1", "p9");
- ASSERT_EQ("0,0,1", FilesPerLevel());
-
- // Populate a different range
- MakeTables(3, "c", "e");
- ASSERT_EQ("1,1,2", FilesPerLevel());
-
- // Compact just the new range
- Compact("b", "f");
- ASSERT_EQ("0,0,2", FilesPerLevel());
-
- // Compact all
- MakeTables(1, "a", "z");
- ASSERT_EQ("0,1,2", FilesPerLevel());
- db_->CompactRange(nullptr, nullptr);
- ASSERT_EQ("0,0,1", FilesPerLevel());
-}
-
-TEST(DBTest, DBOpen_Options) {
- std::string dbname = test::TmpDir() + "/db_options_test";
- ASSERT_OK(DestroyDB(dbname, Options()));
-
- // Does not exist, and create_if_missing == false: error
- DB* db = nullptr;
- Options opts;
- opts.create_if_missing = false;
- Status s = DB::Open(opts, dbname, &db);
- ASSERT_TRUE(strstr(s.ToString().c_str(), "does not exist") != nullptr);
- ASSERT_TRUE(db == nullptr);
-
- // Does not exist, and create_if_missing == true: OK
- opts.create_if_missing = true;
- s = DB::Open(opts, dbname, &db);
- ASSERT_OK(s);
- ASSERT_TRUE(db != nullptr);
-
- delete db;
- db = nullptr;
-
- // Does exist, and error_if_exists == true: error
- opts.create_if_missing = false;
- opts.error_if_exists = true;
- s = DB::Open(opts, dbname, &db);
- ASSERT_TRUE(strstr(s.ToString().c_str(), "exists") != nullptr);
- ASSERT_TRUE(db == nullptr);
-
- // Does exist, and error_if_exists == false: OK
- opts.create_if_missing = true;
- opts.error_if_exists = false;
- s = DB::Open(opts, dbname, &db);
- ASSERT_OK(s);
- ASSERT_TRUE(db != nullptr);
-
- delete db;
- db = nullptr;
-}
-
-TEST(DBTest, DBOpen_Change_NumLevels) {
- std::string dbname = test::TmpDir() + "/db_change_num_levels";
- ASSERT_OK(DestroyDB(dbname, Options()));
- Options opts;
- Status s;
- DB* db = nullptr;
- opts.create_if_missing = true;
- s = DB::Open(opts, dbname, &db);
- ASSERT_OK(s);
- ASSERT_TRUE(db != nullptr);
- db->Put(WriteOptions(), "a", "123");
- db->Put(WriteOptions(), "b", "234");
- db->CompactRange(nullptr, nullptr);
- delete db;
- db = nullptr;
-
- opts.create_if_missing = false;
- opts.num_levels = 2;
- s = DB::Open(opts, dbname, &db);
- ASSERT_TRUE(strstr(s.ToString().c_str(), "Corruption") != nullptr);
- ASSERT_TRUE(db == nullptr);
-}
-
-TEST(DBTest, DestroyDBMetaDatabase) {
- std::string dbname = test::TmpDir() + "/db_meta";
- std::string metadbname = MetaDatabaseName(dbname, 0);
- std::string metametadbname = MetaDatabaseName(metadbname, 0);
-
- // Destroy previous versions if they exist. Using the long way.
- ASSERT_OK(DestroyDB(metametadbname, Options()));
- ASSERT_OK(DestroyDB(metadbname, Options()));
- ASSERT_OK(DestroyDB(dbname, Options()));
-
- // Setup databases
- Options opts;
- opts.create_if_missing = true;
- DB* db = nullptr;
- ASSERT_OK(DB::Open(opts, dbname, &db));
- delete db;
- db = nullptr;
- ASSERT_OK(DB::Open(opts, metadbname, &db));
- delete db;
- db = nullptr;
- ASSERT_OK(DB::Open(opts, metametadbname, &db));
- delete db;
- db = nullptr;
-
- // Delete databases
- ASSERT_OK(DestroyDB(dbname, Options()));
-
- // Check if deletion worked.
- opts.create_if_missing = false;
- ASSERT_TRUE(!(DB::Open(opts, dbname, &db)).ok());
- ASSERT_TRUE(!(DB::Open(opts, metadbname, &db)).ok());
- ASSERT_TRUE(!(DB::Open(opts, metametadbname, &db)).ok());
-}
-
-// Check that number of files does not grow when we are out of space
-TEST(DBTest, NoSpace) {
- do {
- Options options = CurrentOptions();
- options.env = env_;
- Reopen(&options);
-
- ASSERT_OK(Put("foo", "v1"));
- ASSERT_EQ("v1", Get("foo"));
- Compact("a", "z");
- const int num_files = CountFiles();
- env_->no_space_.Release_Store(env_); // Force out-of-space errors
- env_->sleep_counter_.Reset();
- for (int i = 0; i < 5; i++) {
- for (int level = 0; level < dbfull()->NumberLevels()-1; level++) {
- dbfull()->TEST_CompactRange(level, nullptr, nullptr);
- }
- }
- env_->no_space_.Release_Store(nullptr);
- ASSERT_LT(CountFiles(), num_files + 3);
-
- // Check that compaction attempts slept after errors
- ASSERT_GE(env_->sleep_counter_.Read(), 5);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, NonWritableFileSystem) {
- do {
- Options options = CurrentOptions();
- options.write_buffer_size = 1000;
- options.env = env_;
- Reopen(&options);
- ASSERT_OK(Put("foo", "v1"));
- env_->non_writable_.Release_Store(env_); // Force errors for new files
- std::string big(100000, 'x');
- int errors = 0;
- for (int i = 0; i < 20; i++) {
- if (!Put("foo", big).ok()) {
- errors++;
- env_->SleepForMicroseconds(100000);
- }
- }
- ASSERT_GT(errors, 0);
- env_->non_writable_.Release_Store(nullptr);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, ManifestWriteError) {
- // Test for the following problem:
- // (a) Compaction produces file F
- // (b) Log record containing F is written to MANIFEST file, but Sync() fails
- // (c) GC deletes F
- // (d) After reopening DB, reads fail since deleted F is named in log record
-
- // We iterate twice. In the second iteration, everything is the
- // same except the log record never makes it to the MANIFEST file.
- for (int iter = 0; iter < 2; iter++) {
- port::AtomicPointer* error_type = (iter == 0)
- ? &env_->manifest_sync_error_
- : &env_->manifest_write_error_;
-
- // Insert foo=>bar mapping
- Options options = CurrentOptions();
- options.env = env_;
- options.create_if_missing = true;
- options.error_if_exists = false;
- DestroyAndReopen(&options);
- ASSERT_OK(Put("foo", "bar"));
- ASSERT_EQ("bar", Get("foo"));
-
- // Memtable compaction (will succeed)
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("bar", Get("foo"));
- const int last = dbfull()->MaxMemCompactionLevel();
- ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo=>bar is now in last level
-
- // Merging compaction (will fail)
- error_type->Release_Store(env_);
- dbfull()->TEST_CompactRange(last, nullptr, nullptr); // Should fail
- ASSERT_EQ("bar", Get("foo"));
-
- // Recovery: should not lose data
- error_type->Release_Store(nullptr);
- Reopen(&options);
- ASSERT_EQ("bar", Get("foo"));
- }
-}
-
-TEST(DBTest, PutFailsParanoid) {
- // Test the following:
- // (a) A random put fails in paranoid mode (simulate by sync fail)
- // (b) All other puts have to fail, even if writes would succeed
- // (c) All of that should happen ONLY if paranoid_checks = true
-
- Options options = CurrentOptions();
- options.env = env_;
- options.create_if_missing = true;
- options.error_if_exists = false;
- options.paranoid_checks = true;
- DestroyAndReopen(&options);
- Status s;
-
- ASSERT_OK(Put("foo", "bar"));
- ASSERT_OK(Put("foo1", "bar1"));
- // simulate error
- env_->log_write_error_.Release_Store(env_);
- s = Put("foo2", "bar2");
- ASSERT_TRUE(!s.ok());
- env_->log_write_error_.Release_Store(nullptr);
- s = Put("foo3", "bar3");
- // the next put should fail, too
- ASSERT_TRUE(!s.ok());
- // but we're still able to read
- ASSERT_EQ("bar", Get("foo"));
-
- // do the same thing with paranoid checks off
- options.paranoid_checks = false;
- DestroyAndReopen(&options);
-
- ASSERT_OK(Put("foo", "bar"));
- ASSERT_OK(Put("foo1", "bar1"));
- // simulate error
- env_->log_write_error_.Release_Store(env_);
- s = Put("foo2", "bar2");
- ASSERT_TRUE(!s.ok());
- env_->log_write_error_.Release_Store(nullptr);
- s = Put("foo3", "bar3");
- // the next put should NOT fail
- ASSERT_TRUE(s.ok());
-}
-
-TEST(DBTest, FilesDeletedAfterCompaction) {
- do {
- ASSERT_OK(Put("foo", "v2"));
- Compact("a", "z");
- const int num_files = CountLiveFiles();
- for (int i = 0; i < 10; i++) {
- ASSERT_OK(Put("foo", "v2"));
- Compact("a", "z");
- }
- ASSERT_EQ(CountLiveFiles(), num_files);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, BloomFilter) {
- do {
- env_->count_random_reads_ = true;
- Options options = CurrentOptions();
- options.env = env_;
- options.no_block_cache = true;
- options.filter_policy = NewBloomFilterPolicy(10);
- Reopen(&options);
-
- // Populate multiple layers
- const int N = 10000;
- for (int i = 0; i < N; i++) {
- ASSERT_OK(Put(Key(i), Key(i)));
- }
- Compact("a", "z");
- for (int i = 0; i < N; i += 100) {
- ASSERT_OK(Put(Key(i), Key(i)));
- }
- dbfull()->TEST_FlushMemTable();
-
- // Prevent auto compactions triggered by seeks
- env_->delay_sstable_sync_.Release_Store(env_);
-
- // Lookup present keys. Should rarely read from small sstable.
- env_->random_read_counter_.Reset();
- for (int i = 0; i < N; i++) {
- ASSERT_EQ(Key(i), Get(Key(i)));
- }
- int reads = env_->random_read_counter_.Read();
- fprintf(stderr, "%d present => %d reads\n", N, reads);
- ASSERT_GE(reads, N);
- ASSERT_LE(reads, N + 2*N/100);
-
- // Lookup present keys. Should rarely read from either sstable.
- env_->random_read_counter_.Reset();
- for (int i = 0; i < N; i++) {
- ASSERT_EQ("NOT_FOUND", Get(Key(i) + ".missing"));
- }
- reads = env_->random_read_counter_.Read();
- fprintf(stderr, "%d missing => %d reads\n", N, reads);
- ASSERT_LE(reads, 3*N/100);
-
- env_->delay_sstable_sync_.Release_Store(nullptr);
- Close();
- delete options.filter_policy;
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, SnapshotFiles) {
- do {
- Options options = CurrentOptions();
- const EnvOptions soptions;
- options.write_buffer_size = 100000000; // Large write buffer
- Reopen(&options);
-
- Random rnd(301);
-
- // Write 8MB (80 values, each 100K)
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- std::vector<std::string> values;
- for (int i = 0; i < 80; i++) {
- values.push_back(RandomString(&rnd, 100000));
- ASSERT_OK(Put(Key(i), values[i]));
- }
-
- // assert that nothing makes it to disk yet.
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
-
- // get a file snapshot
- uint64_t manifest_number = 0;
- uint64_t manifest_size = 0;
- std::vector<std::string> files;
- dbfull()->DisableFileDeletions();
- dbfull()->GetLiveFiles(files, &manifest_size);
-
- // CURRENT, MANIFEST, *.sst files
- ASSERT_EQ(files.size(), 3U);
-
- uint64_t number = 0;
- FileType type;
-
- // copy these files to a new snapshot directory
- std::string snapdir = dbname_ + ".snapdir/";
- std::string mkdir = "mkdir -p " + snapdir;
- ASSERT_EQ(system(mkdir.c_str()), 0);
-
- for (unsigned int i = 0; i < files.size(); i++) {
- // our clients require that GetLiveFiles returns
- // files with "/" as first character!
- ASSERT_EQ(files[i][0], '/');
- std::string src = dbname_ + files[i];
- std::string dest = snapdir + files[i];
-
- uint64_t size;
- ASSERT_OK(env_->GetFileSize(src, &size));
-
- // record the number and the size of the
- // latest manifest file
- if (ParseFileName(files[i].substr(1), &number, &type)) {
- if (type == kDescriptorFile) {
- if (number > manifest_number) {
- manifest_number = number;
- ASSERT_GE(size, manifest_size);
- size = manifest_size; // copy only valid MANIFEST data
- }
- }
- }
- unique_ptr<SequentialFile> srcfile;
- ASSERT_OK(env_->NewSequentialFile(src, &srcfile, soptions));
- unique_ptr<WritableFile> destfile;
- ASSERT_OK(env_->NewWritableFile(dest, &destfile, soptions));
-
- char buffer[4096];
- Slice slice;
- while (size > 0) {
- uint64_t one = std::min(uint64_t(sizeof(buffer)), size);
- ASSERT_OK(srcfile->Read(one, &slice, buffer));
- ASSERT_OK(destfile->Append(slice));
- size -= slice.size();
- }
- ASSERT_OK(destfile->Close());
- }
-
- // release file snapshot
- dbfull()->DisableFileDeletions();
-
- // overwrite one key, this key should not appear in the snapshot
- std::vector<std::string> extras;
- for (unsigned int i = 0; i < 1; i++) {
- extras.push_back(RandomString(&rnd, 100000));
- ASSERT_OK(Put(Key(i), extras[i]));
- }
-
- // verify that data in the snapshot are correct
- Options opts;
- DB* snapdb;
- opts.create_if_missing = false;
- Status stat = DB::Open(opts, snapdir, &snapdb);
- ASSERT_OK(stat);
-
- ReadOptions roptions;
- std::string val;
- for (unsigned int i = 0; i < 80; i++) {
- stat = snapdb->Get(roptions, Key(i), &val);
- ASSERT_EQ(values[i].compare(val), 0);
- }
- delete snapdb;
-
- // look at the new live files after we added an 'extra' key
- // and after we took the first snapshot.
- uint64_t new_manifest_number = 0;
- uint64_t new_manifest_size = 0;
- std::vector<std::string> newfiles;
- dbfull()->DisableFileDeletions();
- dbfull()->GetLiveFiles(newfiles, &new_manifest_size);
-
- // find the new manifest file. assert that this manifest file is
- // the same one as in the previous snapshot. But its size should be
- // larger because we added an extra key after taking the
- // previous shapshot.
- for (unsigned int i = 0; i < newfiles.size(); i++) {
- std::string src = dbname_ + "/" + newfiles[i];
- // record the lognumber and the size of the
- // latest manifest file
- if (ParseFileName(newfiles[i].substr(1), &number, &type)) {
- if (type == kDescriptorFile) {
- if (number > new_manifest_number) {
- uint64_t size;
- new_manifest_number = number;
- ASSERT_OK(env_->GetFileSize(src, &size));
- ASSERT_GE(size, new_manifest_size);
- }
- }
- }
- }
- ASSERT_EQ(manifest_number, new_manifest_number);
- ASSERT_GT(new_manifest_size, manifest_size);
-
- // release file snapshot
- dbfull()->DisableFileDeletions();
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, CompactOnFlush) {
- do {
- Options options = CurrentOptions();
- options.purge_redundant_kvs_while_flush = true;
- options.disable_auto_compactions = true;
- Reopen(&options);
-
- Put("foo", "v1");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ v1 ]");
-
- // Write two new keys
- Put("a", "begin");
- Put("z", "end");
- dbfull()->TEST_FlushMemTable();
-
- // Case1: Delete followed by a put
- Delete("foo");
- Put("foo", "v2");
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2, DEL, v1 ]");
-
- // After the current memtable is flushed, the DEL should
- // have been removed
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2, v1 ]");
-
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ(AllEntriesFor("foo"), "[ v2 ]");
-
- // Case 2: Delete followed by another delete
- Delete("foo");
- Delete("foo");
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, DEL, v2 ]");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v2 ]");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ(AllEntriesFor("foo"), "[ ]");
-
- // Case 3: Put followed by a delete
- Put("foo", "v3");
- Delete("foo");
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v3 ]");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ DEL ]");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ(AllEntriesFor("foo"), "[ ]");
-
- // Case 4: Put followed by another Put
- Put("foo", "v4");
- Put("foo", "v5");
- ASSERT_EQ(AllEntriesFor("foo"), "[ v5, v4 ]");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ v5 ]");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ(AllEntriesFor("foo"), "[ v5 ]");
-
- // clear database
- Delete("foo");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ(AllEntriesFor("foo"), "[ ]");
-
- // Case 5: Put followed by snapshot followed by another Put
- // Both puts should remain.
- Put("foo", "v6");
- const Snapshot* snapshot = db_->GetSnapshot();
- Put("foo", "v7");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ v7, v6 ]");
- db_->ReleaseSnapshot(snapshot);
-
- // clear database
- Delete("foo");
- dbfull()->CompactRange(nullptr, nullptr);
- ASSERT_EQ(AllEntriesFor("foo"), "[ ]");
-
- // Case 5: snapshot followed by a put followed by another Put
- // Only the last put should remain.
- const Snapshot* snapshot1 = db_->GetSnapshot();
- Put("foo", "v8");
- Put("foo", "v9");
- ASSERT_OK(dbfull()->TEST_FlushMemTable());
- ASSERT_EQ(AllEntriesFor("foo"), "[ v9 ]");
- db_->ReleaseSnapshot(snapshot1);
- } while (ChangeCompactOptions());
-}
-
-std::vector<std::uint64_t> ListLogFiles(Env* env, const std::string& path) {
- std::vector<std::string> files;
- std::vector<uint64_t> log_files;
- env->GetChildren(path, &files);
- uint64_t number;
- FileType type;
- for (size_t i = 0; i < files.size(); ++i) {
- if (ParseFileName(files[i], &number, &type)) {
- if (type == kLogFile) {
- log_files.push_back(number);
- }
- }
- }
- return std::move(log_files);
-}
-
-TEST(DBTest, WALArchivalTtl) {
- do {
- Options options = CurrentOptions();
- options.create_if_missing = true;
- options.WAL_ttl_seconds = 1000;
- DestroyAndReopen(&options);
-
- // TEST : Create DB with a ttl and no size limit.
- // Put some keys. Count the log files present in the DB just after insert.
- // Re-open db. Causes deletion/archival to take place.
- // Assert that the files moved under "/archive".
- // Reopen db with small ttl.
- // Assert that archive was removed.
-
- std::string archiveDir = ArchivalDirectory(dbname_);
-
- for (int i = 0; i < 10; ++i) {
- for (int j = 0; j < 10; ++j) {
- ASSERT_OK(Put(Key(10 * i + j), DummyString(1024)));
- }
-
- std::vector<uint64_t> log_files = ListLogFiles(env_, dbname_);
-
- options.create_if_missing = false;
- Reopen(&options);
-
- std::vector<uint64_t> logs = ListLogFiles(env_, archiveDir);
- std::set<uint64_t> archivedFiles(logs.begin(), logs.end());
-
- for (auto& log : log_files) {
- ASSERT_TRUE(archivedFiles.find(log) != archivedFiles.end());
- }
- }
-
- std::vector<uint64_t> log_files = ListLogFiles(env_, archiveDir);
- ASSERT_TRUE(log_files.size() > 0);
-
- options.WAL_ttl_seconds = 1;
- env_->SleepForMicroseconds(2 * 1000 * 1000);
- Reopen(&options);
-
- log_files = ListLogFiles(env_, archiveDir);
- ASSERT_TRUE(log_files.empty());
- } while (ChangeCompactOptions());
-}
-
-uint64_t GetLogDirSize(std::string dir_path, SpecialEnv* env) {
- uint64_t dir_size = 0;
- std::vector<std::string> files;
- env->GetChildren(dir_path, &files);
- for (auto& f : files) {
- uint64_t number;
- FileType type;
- if (ParseFileName(f, &number, &type) && type == kLogFile) {
- std::string const file_path = dir_path + "/" + f;
- uint64_t file_size;
- env->GetFileSize(file_path, &file_size);
- dir_size += file_size;
- }
- }
- return dir_size;
-}
-
-TEST(DBTest, WALArchivalSizeLimit) {
- do {
- Options options = CurrentOptions();
- options.create_if_missing = true;
- options.WAL_ttl_seconds = 0;
- options.WAL_size_limit_MB = 1000;
-
- // TEST : Create DB with huge size limit and no ttl.
- // Put some keys. Count the archived log files present in the DB
- // just after insert. Assert that there are many enough.
- // Change size limit. Re-open db.
- // Assert that archive is not greater than WAL_size_limit_MB.
- // Set ttl and time_to_check_ to small values. Re-open db.
- // Assert that there are no archived logs left.
-
- DestroyAndReopen(&options);
- for (int i = 0; i < 128 * 128; ++i) {
- ASSERT_OK(Put(Key(i), DummyString(1024)));
- }
- Reopen(&options);
-
- std::string archive_dir = ArchivalDirectory(dbname_);
- std::vector<std::uint64_t> log_files = ListLogFiles(env_, archive_dir);
- ASSERT_TRUE(log_files.size() > 2);
-
- options.WAL_size_limit_MB = 8;
- Reopen(&options);
- dbfull()->TEST_PurgeObsoleteteWAL();
-
- uint64_t archive_size = GetLogDirSize(archive_dir, env_);
- ASSERT_TRUE(archive_size <= options.WAL_size_limit_MB * 1024 * 1024);
-
- options.WAL_ttl_seconds = 1;
- dbfull()->TEST_SetDefaultTimeToCheck(1);
- env_->SleepForMicroseconds(2 * 1000 * 1000);
- Reopen(&options);
- dbfull()->TEST_PurgeObsoleteteWAL();
-
- log_files = ListLogFiles(env_, archive_dir);
- ASSERT_TRUE(log_files.empty());
- } while (ChangeCompactOptions());
-}
-
-SequenceNumber ReadRecords(
- std::unique_ptr<TransactionLogIterator>& iter,
- int& count) {
- count = 0;
- SequenceNumber lastSequence = 0;
- BatchResult res;
- while (iter->Valid()) {
- res = iter->GetBatch();
- ASSERT_TRUE(res.sequence > lastSequence);
- ++count;
- lastSequence = res.sequence;
- ASSERT_OK(iter->status());
- iter->Next();
- }
- return res.sequence;
-}
-
-void ExpectRecords(
- const int expected_no_records,
- std::unique_ptr<TransactionLogIterator>& iter) {
- int num_records;
- ReadRecords(iter, num_records);
- ASSERT_EQ(num_records, expected_no_records);
-}
-
-TEST(DBTest, TransactionLogIterator) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- Put("key1", DummyString(1024));
- Put("key2", DummyString(1024));
- Put("key2", DummyString(1024));
- ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3U);
- {
- auto iter = OpenTransactionLogIter(0);
- ExpectRecords(3, iter);
- }
- Reopen(&options);
- env_->SleepForMicroseconds(2 * 1000 * 1000);{
- Put("key4", DummyString(1024));
- Put("key5", DummyString(1024));
- Put("key6", DummyString(1024));
- }
- {
- auto iter = OpenTransactionLogIter(0);
- ExpectRecords(6, iter);
- }
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorMoveOverZeroFiles) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- // Do a plain Reopen.
- Put("key1", DummyString(1024));
- // Two reopens should create a zero record WAL file.
- Reopen(&options);
- Reopen(&options);
-
- Put("key2", DummyString(1024));
-
- auto iter = OpenTransactionLogIter(0);
- ExpectRecords(2, iter);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorStallAtLastRecord) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- Put("key1", DummyString(1024));
- auto iter = OpenTransactionLogIter(0);
- ASSERT_OK(iter->status());
- ASSERT_TRUE(iter->Valid());
- iter->Next();
- ASSERT_TRUE(!iter->Valid());
- ASSERT_OK(iter->status());
- Put("key2", DummyString(1024));
- iter->Next();
- ASSERT_OK(iter->status());
- ASSERT_TRUE(iter->Valid());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorJustEmptyFile) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- unique_ptr<TransactionLogIterator> iter;
- Status status = dbfull()->GetUpdatesSince(0, &iter);
- // Check that an empty iterator is returned
- ASSERT_TRUE(!iter->Valid());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorCheckAfterRestart) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- Put("key1", DummyString(1024));
- Put("key2", DummyString(1023));
- dbfull()->Flush(FlushOptions());
- Reopen(&options);
- auto iter = OpenTransactionLogIter(0);
- ExpectRecords(2, iter);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorCorruptedLog) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- for (int i = 0; i < 1024; i++) {
- Put("key"+std::to_string(i), DummyString(10));
- }
- dbfull()->Flush(FlushOptions());
- // Corrupt this log to create a gap
- rocksdb::VectorLogPtr wal_files;
- ASSERT_OK(dbfull()->GetSortedWalFiles(wal_files));
- const auto logfilePath = dbname_ + "/" + wal_files.front()->PathName();
- ASSERT_EQ(
- 0,
- truncate(logfilePath.c_str(), wal_files.front()->SizeFileBytes() / 2));
- // Insert a new entry to a new log file
- Put("key1025", DummyString(10));
- // Try to read from the beginning. Should stop before the gap and read less
- // than 1025 entries
- auto iter = OpenTransactionLogIter(0);
- int count;
- int last_sequence_read = ReadRecords(iter, count);
- ASSERT_LT(last_sequence_read, 1025);
- // Try to read past the gap, should be able to seek to key1025
- auto iter2 = OpenTransactionLogIter(last_sequence_read + 1);
- ExpectRecords(1, iter2);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorBatchOperations) {
- do {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- WriteBatch batch;
- batch.Put("key1", DummyString(1024));
- batch.Put("key2", DummyString(1024));
- batch.Put("key3", DummyString(1024));
- batch.Delete("key2");
- dbfull()->Write(WriteOptions(), &batch);
- dbfull()->Flush(FlushOptions());
- Reopen(&options);
- Put("key4", DummyString(1024));
- auto iter = OpenTransactionLogIter(3);
- ExpectRecords(2, iter);
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, TransactionLogIteratorBlobs) {
- Options options = OptionsForLogIterTest();
- DestroyAndReopen(&options);
- {
- WriteBatch batch;
- batch.Put("key1", DummyString(1024));
- batch.Put("key2", DummyString(1024));
- batch.PutLogData(Slice("blob1"));
- batch.Put("key3", DummyString(1024));
- batch.PutLogData(Slice("blob2"));
- batch.Delete("key2");
- dbfull()->Write(WriteOptions(), &batch);
- Reopen(&options);
- }
-
- auto res = OpenTransactionLogIter(0)->GetBatch();
- struct Handler : public WriteBatch::Handler {
- std::string seen;
- virtual void Put(const Slice& key, const Slice& value) {
- seen += "Put(" + key.ToString() + ", " + std::to_string(value.size()) +
- ")";
- }
- virtual void Merge(const Slice& key, const Slice& value) {
- seen += "Merge(" + key.ToString() + ", " + std::to_string(value.size()) +
- ")";
- }
- virtual void LogData(const Slice& blob) {
- seen += "LogData(" + blob.ToString() + ")";
- }
- virtual void Delete(const Slice& key) {
- seen += "Delete(" + key.ToString() + ")";
- }
- } handler;
- res.writeBatchPtr->Iterate(&handler);
- ASSERT_EQ("Put(key1, 1024)"
- "Put(key2, 1024)"
- "LogData(blob1)"
- "Put(key3, 1024)"
- "LogData(blob2)"
- "Delete(key2)", handler.seen);
-}
-
-TEST(DBTest, ReadCompaction) {
- std::string value(4096, '4'); // a string of size 4K
- {
- Options options = CurrentOptions();
- options.create_if_missing = true;
- options.max_open_files = 20; // only 10 file in file-cache
- options.target_file_size_base = 512;
- options.write_buffer_size = 64 * 1024;
- options.filter_policy = nullptr;
- options.block_size = 4096;
- options.no_block_cache = true;
-
- Reopen(&options);
-
- // Write 8MB (2000 values, each 4K)
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- std::vector<std::string> values;
- for (int i = 0; i < 2000; i++) {
- ASSERT_OK(Put(Key(i), value));
- }
-
- // clear level 0 and 1 if necessary.
- dbfull()->TEST_FlushMemTable();
- dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 0);
-
- // write some new keys into level 0
- for (int i = 0; i < 2000; i = i + 16) {
- ASSERT_OK(Put(Key(i), value));
- }
- dbfull()->Flush(FlushOptions());
-
- // Wait for any write compaction to finish
- dbfull()->TEST_WaitForCompact();
-
- // remember number of files in each level
- int l1 = NumTableFilesAtLevel(0);
- int l2 = NumTableFilesAtLevel(1);
- int l3 = NumTableFilesAtLevel(3);
- ASSERT_NE(NumTableFilesAtLevel(0), 0);
- ASSERT_NE(NumTableFilesAtLevel(1), 0);
- ASSERT_NE(NumTableFilesAtLevel(2), 0);
-
- // read a bunch of times, trigger read compaction
- for (int j = 0; j < 100; j++) {
- for (int i = 0; i < 2000; i++) {
- Get(Key(i));
- }
- }
- // wait for read compaction to finish
- env_->SleepForMicroseconds(1000000);
-
- // verify that the number of files have decreased
- // in some level, indicating that there was a compaction
- ASSERT_TRUE(NumTableFilesAtLevel(0) < l1 ||
- NumTableFilesAtLevel(1) < l2 ||
- NumTableFilesAtLevel(2) < l3);
- }
-}
-
-// Multi-threaded test:
-namespace {
-
-static const int kNumThreads = 4;
-static const int kTestSeconds = 10;
-static const int kNumKeys = 1000;
-
-struct MTState {
- DBTest* test;
- port::AtomicPointer stop;
- port::AtomicPointer counter[kNumThreads];
- port::AtomicPointer thread_done[kNumThreads];
-};
-
-struct MTThread {
- MTState* state;
- int id;
-};
-
-static void MTThreadBody(void* arg) {
- MTThread* t = reinterpret_cast<MTThread*>(arg);
- int id = t->id;
- DB* db = t->state->test->db_;
- uintptr_t counter = 0;
- fprintf(stderr, "... starting thread %d\n", id);
- Random rnd(1000 + id);
- std::string value;
- char valbuf[1500];
- while (t->state->stop.Acquire_Load() == nullptr) {
- t->state->counter[id].Release_Store(reinterpret_cast<void*>(counter));
-
- int key = rnd.Uniform(kNumKeys);
- char keybuf[20];
- snprintf(keybuf, sizeof(keybuf), "%016d", key);
-
- if (rnd.OneIn(2)) {
- // Write values of the form <key, my id, counter>.
- // We add some padding for force compactions.
- snprintf(valbuf, sizeof(valbuf), "%d.%d.%-1000d",
- key, id, static_cast<int>(counter));
- ASSERT_OK(t->state->test->Put(Slice(keybuf), Slice(valbuf)));
- } else {
- // Read a value and verify that it matches the pattern written above.
- Status s = db->Get(ReadOptions(), Slice(keybuf), &value);
- if (s.IsNotFound()) {
- // Key has not yet been written
- } else {
- // Check that the writer thread counter is >= the counter in the value
- ASSERT_OK(s);
- int k, w, c;
- ASSERT_EQ(3, sscanf(value.c_str(), "%d.%d.%d", &k, &w, &c)) << value;
- ASSERT_EQ(k, key);
- ASSERT_GE(w, 0);
- ASSERT_LT(w, kNumThreads);
- ASSERT_LE((unsigned int)c, reinterpret_cast<uintptr_t>(
- t->state->counter[w].Acquire_Load()));
- }
- }
- counter++;
- }
- t->state->thread_done[id].Release_Store(t);
- fprintf(stderr, "... stopping thread %d after %d ops\n", id, int(counter));
-}
-
-} // namespace
-
-TEST(DBTest, MultiThreaded) {
- do {
- // Initialize state
- MTState mt;
- mt.test = this;
- mt.stop.Release_Store(0);
- for (int id = 0; id < kNumThreads; id++) {
- mt.counter[id].Release_Store(0);
- mt.thread_done[id].Release_Store(0);
- }
-
- // Start threads
- MTThread thread[kNumThreads];
- for (int id = 0; id < kNumThreads; id++) {
- thread[id].state = &mt;
- thread[id].id = id;
- env_->StartThread(MTThreadBody, &thread[id]);
- }
-
- // Let them run for a while
- env_->SleepForMicroseconds(kTestSeconds * 1000000);
-
- // Stop the threads and wait for them to finish
- mt.stop.Release_Store(&mt);
- for (int id = 0; id < kNumThreads; id++) {
- while (mt.thread_done[id].Acquire_Load() == nullptr) {
- env_->SleepForMicroseconds(100000);
- }
- }
- } while (ChangeOptions());
-}
-
-namespace {
-typedef std::map<std::string, std::string> KVMap;
-}
-
-class ModelDB: public DB {
- public:
- class ModelSnapshot : public Snapshot {
- public:
- KVMap map_;
- };
-
- explicit ModelDB(const Options& options): options_(options) { }
- virtual Status Put(const WriteOptions& o, const Slice& k, const Slice& v) {
- return DB::Put(o, k, v);
- }
- virtual Status Merge(const WriteOptions& o, const Slice& k, const Slice& v) {
- return DB::Merge(o, k, v);
- }
- virtual Status Delete(const WriteOptions& o, const Slice& key) {
- return DB::Delete(o, key);
- }
- virtual Status Get(const ReadOptions& options,
- const Slice& key, std::string* value) {
- return Status::NotSupported(key);
- }
-
- virtual std::vector<Status> MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values) {
- std::vector<Status> s(keys.size(),
- Status::NotSupported("Not implemented."));
- return s;
- }
- virtual bool KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found = nullptr) {
- if (value_found != nullptr) {
- *value_found = false;
- }
- return true; // Not Supported directly
- }
- virtual Iterator* NewIterator(const ReadOptions& options) {
- if (options.snapshot == nullptr) {
- KVMap* saved = new KVMap;
- *saved = map_;
- return new ModelIter(saved, true);
- } else {
- const KVMap* snapshot_state =
- &(reinterpret_cast<const ModelSnapshot*>(options.snapshot)->map_);
- return new ModelIter(snapshot_state, false);
- }
- }
- virtual const Snapshot* GetSnapshot() {
- ModelSnapshot* snapshot = new ModelSnapshot;
- snapshot->map_ = map_;
- return snapshot;
- }
-
- virtual void ReleaseSnapshot(const Snapshot* snapshot) {
- delete reinterpret_cast<const ModelSnapshot*>(snapshot);
- }
- virtual Status Write(const WriteOptions& options, WriteBatch* batch) {
- class Handler : public WriteBatch::Handler {
- public:
- KVMap* map_;
- virtual void Put(const Slice& key, const Slice& value) {
- (*map_)[key.ToString()] = value.ToString();
- }
- virtual void Merge(const Slice& key, const Slice& value) {
- // ignore merge for now
- //(*map_)[key.ToString()] = value.ToString();
- }
- virtual void Delete(const Slice& key) {
- map_->erase(key.ToString());
- }
- };
- Handler handler;
- handler.map_ = &map_;
- return batch->Iterate(&handler);
- }
-
- virtual bool GetProperty(const Slice& property, std::string* value) {
- return false;
- }
- virtual void GetApproximateSizes(const Range* r, int n, uint64_t* sizes) {
- for (int i = 0; i < n; i++) {
- sizes[i] = 0;
- }
- }
- virtual void CompactRange(const Slice* start, const Slice* end,
- bool reduce_level, int target_level) {
- }
-
- virtual int NumberLevels()
- {
- return 1;
- }
-
- virtual int MaxMemCompactionLevel()
- {
- return 1;
- }
-
- virtual int Level0StopWriteTrigger()
- {
- return -1;
- }
-
- virtual Status Flush(const rocksdb::FlushOptions& options) {
- Status ret;
- return ret;
- }
-
- virtual Status DisableFileDeletions() {
- return Status::OK();
- }
- virtual Status EnableFileDeletions() {
- return Status::OK();
- }
- virtual Status GetLiveFiles(std::vector<std::string>&, uint64_t* size,
- bool flush_memtable = true) {
- return Status::OK();
- }
-
- virtual Status GetSortedWalFiles(VectorLogPtr& files) {
- return Status::OK();
- }
-
- virtual Status DeleteFile(std::string name) {
- return Status::OK();
- }
-
- virtual SequenceNumber GetLatestSequenceNumber() const {
- return 0;
- }
- virtual Status GetUpdatesSince(rocksdb::SequenceNumber,
- unique_ptr<rocksdb::TransactionLogIterator>*) {
- return Status::NotSupported("Not supported in Model DB");
- }
-
- private:
- class ModelIter: public Iterator {
- public:
- ModelIter(const KVMap* map, bool owned)
- : map_(map), owned_(owned), iter_(map_->end()) {
- }
- ~ModelIter() {
- if (owned_) delete map_;
- }
- virtual bool Valid() const { return iter_ != map_->end(); }
- virtual void SeekToFirst() { iter_ = map_->begin(); }
- virtual void SeekToLast() {
- if (map_->empty()) {
- iter_ = map_->end();
- } else {
- iter_ = map_->find(map_->rbegin()->first);
- }
- }
- virtual void Seek(const Slice& k) {
- iter_ = map_->lower_bound(k.ToString());
- }
- virtual void Next() { ++iter_; }
- virtual void Prev() { --iter_; }
- virtual Slice key() const { return iter_->first; }
- virtual Slice value() const { return iter_->second; }
- virtual Status status() const { return Status::OK(); }
- private:
- const KVMap* const map_;
- const bool owned_; // Do we own map_
- KVMap::const_iterator iter_;
- };
- const Options options_;
- KVMap map_;
-};
-
-static std::string RandomKey(Random* rnd, int minimum = 0) {
- int len;
- do {
- len = (rnd->OneIn(3)
- ? 1 // Short sometimes to encourage collisions
- : (rnd->OneIn(100) ? rnd->Skewed(10) : rnd->Uniform(10)));
- } while (len < minimum);
- return test::RandomKey(rnd, len);
-}
-
-static bool CompareIterators(int step,
- DB* model,
- DB* db,
- const Snapshot* model_snap,
- const Snapshot* db_snap) {
- ReadOptions options;
- options.snapshot = model_snap;
- Iterator* miter = model->NewIterator(options);
- options.snapshot = db_snap;
- Iterator* dbiter = db->NewIterator(options);
- bool ok = true;
- int count = 0;
- for (miter->SeekToFirst(), dbiter->SeekToFirst();
- ok && miter->Valid() && dbiter->Valid();
- miter->Next(), dbiter->Next()) {
- count++;
- if (miter->key().compare(dbiter->key()) != 0) {
- fprintf(stderr, "step %d: Key mismatch: '%s' vs. '%s'\n",
- step,
- EscapeString(miter->key()).c_str(),
- EscapeString(dbiter->key()).c_str());
- ok = false;
- break;
- }
-
- if (miter->value().compare(dbiter->value()) != 0) {
- fprintf(stderr, "step %d: Value mismatch for key '%s': '%s' vs. '%s'\n",
- step,
- EscapeString(miter->key()).c_str(),
- EscapeString(miter->value()).c_str(),
- EscapeString(miter->value()).c_str());
- ok = false;
- }
- }
-
- if (ok) {
- if (miter->Valid() != dbiter->Valid()) {
- fprintf(stderr, "step %d: Mismatch at end of iterators: %d vs. %d\n",
- step, miter->Valid(), dbiter->Valid());
- ok = false;
- }
- }
- delete miter;
- delete dbiter;
- return ok;
-}
-
-TEST(DBTest, Randomized) {
- Random rnd(test::RandomSeed());
- do {
- ModelDB model(CurrentOptions());
- const int N = 10000;
- const Snapshot* model_snap = nullptr;
- const Snapshot* db_snap = nullptr;
- std::string k, v;
- for (int step = 0; step < N; step++) {
- // TODO(sanjay): Test Get() works
- int p = rnd.Uniform(100);
- int minimum = 0;
- if (option_config_ == kPrefixHashRep) {
- minimum = 1;
- }
- if (p < 45) { // Put
- k = RandomKey(&rnd, minimum);
- v = RandomString(&rnd,
- rnd.OneIn(20)
- ? 100 + rnd.Uniform(100)
- : rnd.Uniform(8));
- ASSERT_OK(model.Put(WriteOptions(), k, v));
- ASSERT_OK(db_->Put(WriteOptions(), k, v));
-
- } else if (p < 90) { // Delete
- k = RandomKey(&rnd, minimum);
- ASSERT_OK(model.Delete(WriteOptions(), k));
- ASSERT_OK(db_->Delete(WriteOptions(), k));
-
-
- } else { // Multi-element batch
- WriteBatch b;
- const int num = rnd.Uniform(8);
- for (int i = 0; i < num; i++) {
- if (i == 0 || !rnd.OneIn(10)) {
- k = RandomKey(&rnd, minimum);
- } else {
- // Periodically re-use the same key from the previous iter, so
- // we have multiple entries in the write batch for the same key
- }
- if (rnd.OneIn(2)) {
- v = RandomString(&rnd, rnd.Uniform(10));
- b.Put(k, v);
- } else {
- b.Delete(k);
- }
- }
- ASSERT_OK(model.Write(WriteOptions(), &b));
- ASSERT_OK(db_->Write(WriteOptions(), &b));
- }
-
- if ((step % 100) == 0) {
- ASSERT_TRUE(CompareIterators(step, &model, db_, nullptr, nullptr));
- ASSERT_TRUE(CompareIterators(step, &model, db_, model_snap, db_snap));
- // Save a snapshot from each DB this time that we'll use next
- // time we compare things, to make sure the current state is
- // preserved with the snapshot
- if (model_snap != nullptr) model.ReleaseSnapshot(model_snap);
- if (db_snap != nullptr) db_->ReleaseSnapshot(db_snap);
-
- Reopen();
- ASSERT_TRUE(CompareIterators(step, &model, db_, nullptr, nullptr));
-
- model_snap = model.GetSnapshot();
- db_snap = db_->GetSnapshot();
- }
- }
- if (model_snap != nullptr) model.ReleaseSnapshot(model_snap);
- if (db_snap != nullptr) db_->ReleaseSnapshot(db_snap);
- } while (ChangeOptions(kSkipDeletesFilterFirst));
-}
-
-TEST(DBTest, MultiGetSimple) {
- do {
- ASSERT_OK(db_->Put(WriteOptions(),"k1","v1"));
- ASSERT_OK(db_->Put(WriteOptions(),"k2","v2"));
- ASSERT_OK(db_->Put(WriteOptions(),"k3","v3"));
- ASSERT_OK(db_->Put(WriteOptions(),"k4","v4"));
- ASSERT_OK(db_->Delete(WriteOptions(),"k4"));
- ASSERT_OK(db_->Put(WriteOptions(),"k5","v5"));
- ASSERT_OK(db_->Delete(WriteOptions(),"no_key"));
-
- std::vector<Slice> keys(6);
- keys[0] = "k1";
- keys[1] = "k2";
- keys[2] = "k3";
- keys[3] = "k4";
- keys[4] = "k5";
- keys[5] = "no_key";
-
- std::vector<std::string> values(20,"Temporary data to be overwritten");
-
- std::vector<Status> s = db_->MultiGet(ReadOptions(),keys,&values);
- ASSERT_EQ(values.size(),keys.size());
- ASSERT_EQ(values[0], "v1");
- ASSERT_EQ(values[1], "v2");
- ASSERT_EQ(values[2], "v3");
- ASSERT_EQ(values[4], "v5");
-
- ASSERT_OK(s[0]);
- ASSERT_OK(s[1]);
- ASSERT_OK(s[2]);
- ASSERT_TRUE(s[3].IsNotFound());
- ASSERT_OK(s[4]);
- ASSERT_TRUE(s[5].IsNotFound());
- } while (ChangeCompactOptions());
-}
-
-TEST(DBTest, MultiGetEmpty) {
- do {
- // Empty Key Set
- std::vector<Slice> keys;
- std::vector<std::string> values;
- std::vector<Status> s = db_->MultiGet(ReadOptions(),keys,&values);
- ASSERT_EQ((int)s.size(),0);
-
- // Empty Database, Empty Key Set
- DestroyAndReopen();
- s = db_->MultiGet(ReadOptions(), keys, &values);
- ASSERT_EQ((int)s.size(),0);
-
- // Empty Database, Search for Keys
- keys.resize(2);
- keys[0] = "a";
- keys[1] = "b";
- s = db_->MultiGet(ReadOptions(),keys,&values);
- ASSERT_EQ((int)s.size(), 2);
- ASSERT_TRUE(s[0].IsNotFound() && s[1].IsNotFound());
- } while (ChangeCompactOptions());
-}
-
-void PrefixScanInit(DBTest *dbtest) {
- char buf[100];
- std::string keystr;
- const int small_range_sstfiles = 5;
- const int big_range_sstfiles = 5;
-
- // Generate 11 sst files with the following prefix ranges.
- // GROUP 0: [0,10] (level 1)
- // GROUP 1: [1,2], [2,3], [3,4], [4,5], [5, 6] (level 0)
- // GROUP 2: [0,6], [0,7], [0,8], [0,9], [0,10] (level 0)
- //
- // A seek with the previous API would do 11 random I/Os (to all the
- // files). With the new API and a prefix filter enabled, we should
- // only do 2 random I/O, to the 2 files containing the key.
-
- // GROUP 0
- snprintf(buf, sizeof(buf), "%02d______:start", 0);
- keystr = std::string(buf);
- ASSERT_OK(dbtest->Put(keystr, keystr));
- snprintf(buf, sizeof(buf), "%02d______:end", 10);
- keystr = std::string(buf);
- ASSERT_OK(dbtest->Put(keystr, keystr));
- dbtest->dbfull()->TEST_FlushMemTable();
- dbtest->dbfull()->CompactRange(nullptr, nullptr); // move to level 1
-
- // GROUP 1
- for (int i = 1; i <= small_range_sstfiles; i++) {
- snprintf(buf, sizeof(buf), "%02d______:start", i);
- keystr = std::string(buf);
- ASSERT_OK(dbtest->Put(keystr, keystr));
- snprintf(buf, sizeof(buf), "%02d______:end", i+1);
- keystr = std::string(buf);
- ASSERT_OK(dbtest->Put(keystr, keystr));
- dbtest->dbfull()->TEST_FlushMemTable();
- }
-
- // GROUP 2
- for (int i = 1; i <= big_range_sstfiles; i++) {
- std::string keystr;
- snprintf(buf, sizeof(buf), "%02d______:start", 0);
- keystr = std::string(buf);
- ASSERT_OK(dbtest->Put(keystr, keystr));
- snprintf(buf, sizeof(buf), "%02d______:end",
- small_range_sstfiles+i+1);
- keystr = std::string(buf);
- ASSERT_OK(dbtest->Put(keystr, keystr));
- dbtest->dbfull()->TEST_FlushMemTable();
- }
-}
-
-TEST(DBTest, PrefixScan) {
- for (int it = 0; it < 2; ++it) {
- ReadOptions ro = ReadOptions();
- int count;
- Slice prefix;
- Slice key;
- char buf[100];
- Iterator* iter;
- snprintf(buf, sizeof(buf), "03______:");
- prefix = Slice(buf, 8);
- key = Slice(buf, 9);
- auto prefix_extractor = NewFixedPrefixTransform(8);
- // db configs
- env_->count_random_reads_ = true;
- Options options = CurrentOptions();
- options.env = env_;
- options.no_block_cache = true;
- options.filter_policy = NewBloomFilterPolicy(10);
- options.prefix_extractor = prefix_extractor;
- options.whole_key_filtering = false;
- options.disable_auto_compactions = true;
- options.max_background_compactions = 2;
- options.create_if_missing = true;
- options.disable_seek_compaction = true;
- if (it == 0) {
- options.memtable_factory.reset(NewHashSkipListRepFactory(
- prefix_extractor));
- } else {
- options.memtable_factory = std::make_shared<PrefixHashRepFactory>(
- prefix_extractor);
- }
-
- // prefix specified, with blooms: 2 RAND I/Os
- // SeekToFirst
- DestroyAndReopen(&options);
- PrefixScanInit(this);
- count = 0;
- env_->random_read_counter_.Reset();
- ro.prefix = &prefix;
- iter = db_->NewIterator(ro);
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- assert(iter->key().starts_with(prefix));
- count++;
- }
- ASSERT_OK(iter->status());
- delete iter;
- ASSERT_EQ(count, 2);
- ASSERT_EQ(env_->random_read_counter_.Read(), 2);
-
- // prefix specified, with blooms: 2 RAND I/Os
- // Seek
- DestroyAndReopen(&options);
- PrefixScanInit(this);
- count = 0;
- env_->random_read_counter_.Reset();
- ro.prefix = &prefix;
- iter = db_->NewIterator(ro);
- for (iter->Seek(key); iter->Valid(); iter->Next()) {
- assert(iter->key().starts_with(prefix));
- count++;
- }
- ASSERT_OK(iter->status());
- delete iter;
- ASSERT_EQ(count, 2);
- ASSERT_EQ(env_->random_read_counter_.Read(), 2);
-
- // no prefix specified: 11 RAND I/Os
- DestroyAndReopen(&options);
- PrefixScanInit(this);
- count = 0;
- env_->random_read_counter_.Reset();
- iter = db_->NewIterator(ReadOptions());
- for (iter->Seek(prefix); iter->Valid(); iter->Next()) {
- if (! iter->key().starts_with(prefix)) {
- break;
- }
- count++;
- }
- ASSERT_OK(iter->status());
- delete iter;
- ASSERT_EQ(count, 2);
- ASSERT_EQ(env_->random_read_counter_.Read(), 11);
- Close();
- delete options.filter_policy;
- }
-}
-
-std::string MakeKey(unsigned int num) {
- char buf[30];
- snprintf(buf, sizeof(buf), "%016u", num);
- return std::string(buf);
-}
-
-void BM_LogAndApply(int iters, int num_base_files) {
- std::string dbname = test::TmpDir() + "/rocksdb_test_benchmark";
- ASSERT_OK(DestroyDB(dbname, Options()));
-
- DB* db = nullptr;
- Options opts;
- opts.create_if_missing = true;
- Status s = DB::Open(opts, dbname, &db);
- ASSERT_OK(s);
- ASSERT_TRUE(db != nullptr);
-
- delete db;
- db = nullptr;
-
- Env* env = Env::Default();
-
- port::Mutex mu;
- MutexLock l(&mu);
-
- InternalKeyComparator cmp(BytewiseComparator());
- Options options;
- EnvOptions sopt;
- VersionSet vset(dbname, &options, sopt, nullptr, &cmp);
- ASSERT_OK(vset.Recover());
- VersionEdit vbase(vset.NumberLevels());
- uint64_t fnum = 1;
- for (int i = 0; i < num_base_files; i++) {
- InternalKey start(MakeKey(2*fnum), 1, kTypeValue);
- InternalKey limit(MakeKey(2*fnum+1), 1, kTypeDeletion);
- vbase.AddFile(2, fnum++, 1 /* file size */, start, limit, 1, 1);
- }
- ASSERT_OK(vset.LogAndApply(&vbase, &mu));
-
- uint64_t start_micros = env->NowMicros();
-
- for (int i = 0; i < iters; i++) {
- VersionEdit vedit(vset.NumberLevels());
- vedit.DeleteFile(2, fnum);
- InternalKey start(MakeKey(2*fnum), 1, kTypeValue);
- InternalKey limit(MakeKey(2*fnum+1), 1, kTypeDeletion);
- vedit.AddFile(2, fnum++, 1 /* file size */, start, limit, 1, 1);
- vset.LogAndApply(&vedit, &mu);
- }
- uint64_t stop_micros = env->NowMicros();
- unsigned int us = stop_micros - start_micros;
- char buf[16];
- snprintf(buf, sizeof(buf), "%d", num_base_files);
- fprintf(stderr,
- "BM_LogAndApply/%-6s %8d iters : %9u us (%7.0f us / iter)\n",
- buf, iters, us, ((float)us) / iters);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- if (argc > 1 && std::string(argv[1]) == "--benchmark") {
- rocksdb::BM_LogAndApply(1000, 1);
- rocksdb::BM_LogAndApply(1000, 100);
- rocksdb::BM_LogAndApply(1000, 10000);
- rocksdb::BM_LogAndApply(100, 100000);
- return 0;
- }
-
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <stdio.h>
-#include "db/dbformat.h"
-#include "port/port.h"
-#include "util/coding.h"
-#include "util/perf_context_imp.h"
-
-namespace rocksdb {
-
-static uint64_t PackSequenceAndType(uint64_t seq, ValueType t) {
- assert(seq <= kMaxSequenceNumber);
- assert(t <= kValueTypeForSeek);
- return (seq << 8) | t;
-}
-
-void AppendInternalKey(std::string* result, const ParsedInternalKey& key) {
- result->append(key.user_key.data(), key.user_key.size());
- PutFixed64(result, PackSequenceAndType(key.sequence, key.type));
-}
-
-std::string ParsedInternalKey::DebugString(bool hex) const {
- char buf[50];
- snprintf(buf, sizeof(buf), "' @ %llu : %d",
- (unsigned long long) sequence,
- int(type));
- std::string result = "'";
- result += user_key.ToString(hex);
- result += buf;
- return result;
-}
-
-std::string InternalKey::DebugString(bool hex) const {
- std::string result;
- ParsedInternalKey parsed;
- if (ParseInternalKey(rep_, &parsed)) {
- result = parsed.DebugString(hex);
- } else {
- result = "(bad)";
- result.append(EscapeString(rep_));
- }
- return result;
-}
-
-const char* InternalKeyComparator::Name() const {
- return name_.c_str();
-}
-
-int InternalKeyComparator::Compare(const Slice& akey, const Slice& bkey) const {
- // Order by:
- // increasing user key (according to user-supplied comparator)
- // decreasing sequence number
- // decreasing type (though sequence# should be enough to disambiguate)
- int r = user_comparator_->Compare(ExtractUserKey(akey), ExtractUserKey(bkey));
- BumpPerfCount(&perf_context.user_key_comparison_count);
- if (r == 0) {
- const uint64_t anum = DecodeFixed64(akey.data() + akey.size() - 8);
- const uint64_t bnum = DecodeFixed64(bkey.data() + bkey.size() - 8);
- if (anum > bnum) {
- r = -1;
- } else if (anum < bnum) {
- r = +1;
- }
- }
- return r;
-}
-
-void InternalKeyComparator::FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
- // Attempt to shorten the user portion of the key
- Slice user_start = ExtractUserKey(*start);
- Slice user_limit = ExtractUserKey(limit);
- std::string tmp(user_start.data(), user_start.size());
- user_comparator_->FindShortestSeparator(&tmp, user_limit);
- if (tmp.size() < user_start.size() &&
- user_comparator_->Compare(user_start, tmp) < 0) {
- // User key has become shorter physically, but larger logically.
- // Tack on the earliest possible number to the shortened user key.
- PutFixed64(&tmp, PackSequenceAndType(kMaxSequenceNumber,kValueTypeForSeek));
- assert(this->Compare(*start, tmp) < 0);
- assert(this->Compare(tmp, limit) < 0);
- start->swap(tmp);
- }
-}
-
-void InternalKeyComparator::FindShortSuccessor(std::string* key) const {
- Slice user_key = ExtractUserKey(*key);
- std::string tmp(user_key.data(), user_key.size());
- user_comparator_->FindShortSuccessor(&tmp);
- if (tmp.size() < user_key.size() &&
- user_comparator_->Compare(user_key, tmp) < 0) {
- // User key has become shorter physically, but larger logically.
- // Tack on the earliest possible number to the shortened user key.
- PutFixed64(&tmp, PackSequenceAndType(kMaxSequenceNumber,kValueTypeForSeek));
- assert(this->Compare(*key, tmp) < 0);
- key->swap(tmp);
- }
-}
-
-const char* InternalFilterPolicy::Name() const {
- return user_policy_->Name();
-}
-
-void InternalFilterPolicy::CreateFilter(const Slice* keys, int n,
- std::string* dst) const {
- // We rely on the fact that the code in table.cc does not mind us
- // adjusting keys[].
- Slice* mkey = const_cast<Slice*>(keys);
- for (int i = 0; i < n; i++) {
- mkey[i] = ExtractUserKey(keys[i]);
- // TODO(sanjay): Suppress dups?
- }
- user_policy_->CreateFilter(keys, n, dst);
-}
-
-bool InternalFilterPolicy::KeyMayMatch(const Slice& key, const Slice& f) const {
- return user_policy_->KeyMayMatch(ExtractUserKey(key), f);
-}
-
-LookupKey::LookupKey(const Slice& user_key, SequenceNumber s) {
- size_t usize = user_key.size();
- size_t needed = usize + 13; // A conservative estimate
- char* dst;
- if (needed <= sizeof(space_)) {
- dst = space_;
- } else {
- dst = new char[needed];
- }
- start_ = dst;
- dst = EncodeVarint32(dst, usize + 8);
- kstart_ = dst;
- memcpy(dst, user_key.data(), usize);
- dst += usize;
- EncodeFixed64(dst, PackSequenceAndType(s, kValueTypeForSeek));
- dst += 8;
- end_ = dst;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <stdio.h>
-#include "rocksdb/comparator.h"
-#include "rocksdb/db.h"
-#include "rocksdb/filter_policy.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/table.h"
-#include "rocksdb/types.h"
-#include "util/coding.h"
-#include "util/logging.h"
-
-namespace rocksdb {
-
-class InternalKey;
-
-// Value types encoded as the last component of internal keys.
-// DO NOT CHANGE THESE ENUM VALUES: they are embedded in the on-disk
-// data structures.
-enum ValueType {
- kTypeDeletion = 0x0,
- kTypeValue = 0x1,
- kTypeMerge = 0x2,
- kTypeLogData = 0x3
-};
-// kValueTypeForSeek defines the ValueType that should be passed when
-// constructing a ParsedInternalKey object for seeking to a particular
-// sequence number (since we sort sequence numbers in decreasing order
-// and the value type is embedded as the low 8 bits in the sequence
-// number in internal keys, we need to use the highest-numbered
-// ValueType, not the lowest).
-static const ValueType kValueTypeForSeek = kTypeMerge;
-
-// We leave eight bits empty at the bottom so a type and sequence#
-// can be packed together into 64-bits.
-static const SequenceNumber kMaxSequenceNumber =
- ((0x1ull << 56) - 1);
-
-struct ParsedInternalKey {
- Slice user_key;
- SequenceNumber sequence;
- ValueType type;
-
- ParsedInternalKey() { } // Intentionally left uninitialized (for speed)
- ParsedInternalKey(const Slice& u, const SequenceNumber& seq, ValueType t)
- : user_key(u), sequence(seq), type(t) { }
- std::string DebugString(bool hex = false) const;
-};
-
-// Return the length of the encoding of "key".
-inline size_t InternalKeyEncodingLength(const ParsedInternalKey& key) {
- return key.user_key.size() + 8;
-}
-
-// Append the serialization of "key" to *result.
-extern void AppendInternalKey(std::string* result,
- const ParsedInternalKey& key);
-
-// Attempt to parse an internal key from "internal_key". On success,
-// stores the parsed data in "*result", and returns true.
-//
-// On error, returns false, leaves "*result" in an undefined state.
-extern bool ParseInternalKey(const Slice& internal_key,
- ParsedInternalKey* result);
-
-// Returns the user key portion of an internal key.
-inline Slice ExtractUserKey(const Slice& internal_key) {
- assert(internal_key.size() >= 8);
- return Slice(internal_key.data(), internal_key.size() - 8);
-}
-
-inline ValueType ExtractValueType(const Slice& internal_key) {
- assert(internal_key.size() >= 8);
- const size_t n = internal_key.size();
- uint64_t num = DecodeFixed64(internal_key.data() + n - 8);
- unsigned char c = num & 0xff;
- return static_cast<ValueType>(c);
-}
-
-// A comparator for internal keys that uses a specified comparator for
-// the user key portion and breaks ties by decreasing sequence number.
-class InternalKeyComparator : public Comparator {
- private:
- const Comparator* user_comparator_;
- std::string name_;
- public:
- explicit InternalKeyComparator(const Comparator* c) : user_comparator_(c),
- name_("rocksdb.InternalKeyComparator:" +
- std::string(user_comparator_->Name())) {
- }
-
- virtual const char* Name() const;
- virtual int Compare(const Slice& a, const Slice& b) const;
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const;
- virtual void FindShortSuccessor(std::string* key) const;
-
- const Comparator* user_comparator() const { return user_comparator_; }
-
- int Compare(const InternalKey& a, const InternalKey& b) const;
-};
-
-// Filter policy wrapper that converts from internal keys to user keys
-class InternalFilterPolicy : public FilterPolicy {
- private:
- const FilterPolicy* const user_policy_;
- public:
- explicit InternalFilterPolicy(const FilterPolicy* p) : user_policy_(p) { }
- virtual const char* Name() const;
- virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const;
- virtual bool KeyMayMatch(const Slice& key, const Slice& filter) const;
-};
-
-// Modules in this directory should keep internal keys wrapped inside
-// the following class instead of plain strings so that we do not
-// incorrectly use string comparisons instead of an InternalKeyComparator.
-class InternalKey {
- private:
- std::string rep_;
- public:
- InternalKey() { } // Leave rep_ as empty to indicate it is invalid
- InternalKey(const Slice& user_key, SequenceNumber s, ValueType t) {
- AppendInternalKey(&rep_, ParsedInternalKey(user_key, s, t));
- }
-
- void DecodeFrom(const Slice& s) { rep_.assign(s.data(), s.size()); }
- Slice Encode() const {
- assert(!rep_.empty());
- return rep_;
- }
-
- Slice user_key() const { return ExtractUserKey(rep_); }
-
- void SetFrom(const ParsedInternalKey& p) {
- rep_.clear();
- AppendInternalKey(&rep_, p);
- }
-
- void Clear() { rep_.clear(); }
-
- std::string DebugString(bool hex = false) const;
-};
-
-inline int InternalKeyComparator::Compare(
- const InternalKey& a, const InternalKey& b) const {
- return Compare(a.Encode(), b.Encode());
-}
-
-inline bool ParseInternalKey(const Slice& internal_key,
- ParsedInternalKey* result) {
- const size_t n = internal_key.size();
- if (n < 8) return false;
- uint64_t num = DecodeFixed64(internal_key.data() + n - 8);
- unsigned char c = num & 0xff;
- result->sequence = num >> 8;
- result->type = static_cast<ValueType>(c);
- result->user_key = Slice(internal_key.data(), n - 8);
- return (c <= static_cast<unsigned char>(kValueTypeForSeek));
-}
-
-// Update the sequence number in the internal key
-inline void UpdateInternalKey(char* internal_key,
- const size_t internal_key_size,
- uint64_t seq, ValueType t) {
- assert(internal_key_size >= 8);
- char* seqtype = internal_key + internal_key_size - 8;
- uint64_t newval = (seq << 8) | t;
- EncodeFixed64(seqtype, newval);
-}
-
-// Get the sequence number from the internal key
-inline uint64_t GetInternalKeySeqno(const Slice& internal_key) {
- const size_t n = internal_key.size();
- assert(n >= 8);
- uint64_t num = DecodeFixed64(internal_key.data() + n - 8);
- return num >> 8;
-}
-
-
-// A helper class useful for DBImpl::Get()
-class LookupKey {
- public:
- // Initialize *this for looking up user_key at a snapshot with
- // the specified sequence number.
- LookupKey(const Slice& user_key, SequenceNumber sequence);
-
- ~LookupKey();
-
- // Return a key suitable for lookup in a MemTable.
- Slice memtable_key() const { return Slice(start_, end_ - start_); }
-
- // Return an internal key (suitable for passing to an internal iterator)
- Slice internal_key() const { return Slice(kstart_, end_ - kstart_); }
-
- // Return the user key
- Slice user_key() const { return Slice(kstart_, end_ - kstart_ - 8); }
-
- private:
- // We construct a char array of the form:
- // klength varint32 <-- start_
- // userkey char[klength] <-- kstart_
- // tag uint64
- // <-- end_
- // The array is a suitable MemTable key.
- // The suffix starting with "userkey" can be used as an InternalKey.
- const char* start_;
- const char* kstart_;
- const char* end_;
- char space_[200]; // Avoid allocation for short keys
-
- // No copying allowed
- LookupKey(const LookupKey&);
- void operator=(const LookupKey&);
-};
-
-inline LookupKey::~LookupKey() {
- if (start_ != space_) delete[] start_;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/dbformat.h"
-#include "util/logging.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-static std::string IKey(const std::string& user_key,
- uint64_t seq,
- ValueType vt) {
- std::string encoded;
- AppendInternalKey(&encoded, ParsedInternalKey(user_key, seq, vt));
- return encoded;
-}
-
-static std::string Shorten(const std::string& s, const std::string& l) {
- std::string result = s;
- InternalKeyComparator(BytewiseComparator()).FindShortestSeparator(&result, l);
- return result;
-}
-
-static std::string ShortSuccessor(const std::string& s) {
- std::string result = s;
- InternalKeyComparator(BytewiseComparator()).FindShortSuccessor(&result);
- return result;
-}
-
-static void TestKey(const std::string& key,
- uint64_t seq,
- ValueType vt) {
- std::string encoded = IKey(key, seq, vt);
-
- Slice in(encoded);
- ParsedInternalKey decoded("", 0, kTypeValue);
-
- ASSERT_TRUE(ParseInternalKey(in, &decoded));
- ASSERT_EQ(key, decoded.user_key.ToString());
- ASSERT_EQ(seq, decoded.sequence);
- ASSERT_EQ(vt, decoded.type);
-
- ASSERT_TRUE(!ParseInternalKey(Slice("bar"), &decoded));
-}
-
-class FormatTest { };
-
-TEST(FormatTest, InternalKey_EncodeDecode) {
- const char* keys[] = { "", "k", "hello", "longggggggggggggggggggggg" };
- const uint64_t seq[] = {
- 1, 2, 3,
- (1ull << 8) - 1, 1ull << 8, (1ull << 8) + 1,
- (1ull << 16) - 1, 1ull << 16, (1ull << 16) + 1,
- (1ull << 32) - 1, 1ull << 32, (1ull << 32) + 1
- };
- for (unsigned int k = 0; k < sizeof(keys) / sizeof(keys[0]); k++) {
- for (unsigned int s = 0; s < sizeof(seq) / sizeof(seq[0]); s++) {
- TestKey(keys[k], seq[s], kTypeValue);
- TestKey("hello", 1, kTypeDeletion);
- }
- }
-}
-
-TEST(FormatTest, InternalKeyShortSeparator) {
- // When user keys are same
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 99, kTypeValue)));
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 101, kTypeValue)));
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 100, kTypeValue)));
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 100, kTypeDeletion)));
-
- // When user keys are misordered
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("bar", 99, kTypeValue)));
-
- // When user keys are different, but correctly ordered
- ASSERT_EQ(IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("hello", 200, kTypeValue)));
-
- // When start user key is prefix of limit user key
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foobar", 200, kTypeValue)));
-
- // When limit user key is prefix of start user key
- ASSERT_EQ(IKey("foobar", 100, kTypeValue),
- Shorten(IKey("foobar", 100, kTypeValue),
- IKey("foo", 200, kTypeValue)));
-}
-
-TEST(FormatTest, InternalKeyShortestSuccessor) {
- ASSERT_EQ(IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
- ShortSuccessor(IKey("foo", 100, kTypeValue)));
- ASSERT_EQ(IKey("\xff\xff", 100, kTypeValue),
- ShortSuccessor(IKey("\xff\xff", 100, kTypeValue)));
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/db.h"
-#include "db/db_impl.h"
-#include "db/filename.h"
-#include "db/version_set.h"
-#include "db/write_batch_internal.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "rocksdb/env.h"
-#include "rocksdb/transaction_log.h"
-#include <vector>
-#include <stdlib.h>
-#include <map>
-#include <string>
-
-namespace rocksdb {
-
-class DeleteFileTest {
- public:
- std::string dbname_;
- Options options_;
- DB* db_;
- Env* env_;
- int numlevels_;
-
- DeleteFileTest() {
- db_ = nullptr;
- env_ = Env::Default();
- options_.write_buffer_size = 1024*1024*1000;
- options_.target_file_size_base = 1024*1024*1000;
- options_.max_bytes_for_level_base = 1024*1024*1000;
- options_.WAL_ttl_seconds = 300; // Used to test log files
- options_.WAL_size_limit_MB = 1024; // Used to test log files
- dbname_ = test::TmpDir() + "/deletefile_test";
- options_.wal_dir = dbname_ + "/wal_files";
- DestroyDB(dbname_, options_);
- numlevels_ = 7;
- ASSERT_OK(ReopenDB(true));
- }
-
- Status ReopenDB(bool create) {
- delete db_;
- if (create) {
- DestroyDB(dbname_, options_);
- }
- db_ = nullptr;
- options_.create_if_missing = create;
- return DB::Open(options_, dbname_, &db_);
- }
-
- void CloseDB() {
- delete db_;
- }
-
- void AddKeys(int numkeys, int startkey = 0) {
- WriteOptions options;
- options.sync = false;
- ReadOptions roptions;
- for (int i = startkey; i < (numkeys + startkey) ; i++) {
- std::string temp = std::to_string(i);
- Slice key(temp);
- Slice value(temp);
- ASSERT_OK(db_->Put(options, key, value));
- }
- }
-
- int numKeysInLevels(
- std::vector<LiveFileMetaData> &metadata,
- std::vector<int> *keysperlevel = nullptr) {
-
- if (keysperlevel != nullptr) {
- keysperlevel->resize(numlevels_);
- }
-
- int numKeys = 0;
- for (size_t i = 0; i < metadata.size(); i++) {
- int startkey = atoi(metadata[i].smallestkey.c_str());
- int endkey = atoi(metadata[i].largestkey.c_str());
- int numkeysinfile = (endkey - startkey + 1);
- numKeys += numkeysinfile;
- if (keysperlevel != nullptr) {
- (*keysperlevel)[(int)metadata[i].level] += numkeysinfile;
- }
- fprintf(stderr, "level %d name %s smallest %s largest %s\n",
- metadata[i].level, metadata[i].name.c_str(),
- metadata[i].smallestkey.c_str(),
- metadata[i].largestkey.c_str());
- }
- return numKeys;
- }
-
- void CreateTwoLevels() {
- AddKeys(50000, 10000);
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
- ASSERT_OK(dbi->TEST_FlushMemTable());
- ASSERT_OK(dbi->TEST_WaitForFlushMemTable());
-
- AddKeys(50000, 10000);
- ASSERT_OK(dbi->TEST_FlushMemTable());
- ASSERT_OK(dbi->TEST_WaitForFlushMemTable());
- }
-
- void CheckFileTypeCounts(std::string& dir,
- int required_log,
- int required_sst,
- int required_manifest) {
- std::vector<std::string> filenames;
- env_->GetChildren(dir, &filenames);
-
- int log_cnt = 0, sst_cnt = 0, manifest_cnt = 0;
- for (auto file : filenames) {
- uint64_t number;
- FileType type;
- if (ParseFileName(file, &number, &type)) {
- log_cnt += (type == kLogFile);
- sst_cnt += (type == kTableFile);
- manifest_cnt += (type == kDescriptorFile);
- }
- }
- ASSERT_EQ(required_log, log_cnt);
- ASSERT_EQ(required_sst, sst_cnt);
- ASSERT_EQ(required_manifest, manifest_cnt);
- }
-
-};
-
-TEST(DeleteFileTest, AddKeysAndQueryLevels) {
- CreateTwoLevels();
- std::vector<LiveFileMetaData> metadata;
- std::vector<int> keysinlevel;
- db_->GetLiveFilesMetaData(&metadata);
-
- std::string level1file = "";
- int level1keycount = 0;
- std::string level2file = "";
- int level2keycount = 0;
- int level1index = 0;
- int level2index = 1;
-
- ASSERT_EQ((int)metadata.size(), 2);
- if (metadata[0].level == 2) {
- level1index = 1;
- level2index = 0;
- }
-
- level1file = metadata[level1index].name;
- int startkey = atoi(metadata[level1index].smallestkey.c_str());
- int endkey = atoi(metadata[level1index].largestkey.c_str());
- level1keycount = (endkey - startkey + 1);
- level2file = metadata[level2index].name;
- startkey = atoi(metadata[level2index].smallestkey.c_str());
- endkey = atoi(metadata[level2index].largestkey.c_str());
- level2keycount = (endkey - startkey + 1);
-
- // COntrolled setup. Levels 1 and 2 should both have 50K files.
- // This is a little fragile as it depends on the current
- // compaction heuristics.
- ASSERT_EQ(level1keycount, 50000);
- ASSERT_EQ(level2keycount, 50000);
-
- Status status = db_->DeleteFile("0.sst");
- ASSERT_TRUE(status.IsInvalidArgument());
-
- // intermediate level files cannot be deleted.
- status = db_->DeleteFile(level1file);
- ASSERT_TRUE(status.IsInvalidArgument());
-
- // Lowest level file deletion should succeed.
- ASSERT_OK(db_->DeleteFile(level2file));
-
- CloseDB();
-}
-
-TEST(DeleteFileTest, PurgeObsoleteFilesTest) {
- CreateTwoLevels();
- // there should be only one (empty) log file because CreateTwoLevels()
- // flushes the memtables to disk
- CheckFileTypeCounts(options_.wal_dir, 1, 0, 0);
- // 2 ssts, 1 manifest
- CheckFileTypeCounts(dbname_, 0, 2, 1);
- std::string first("0"), last("999999");
- Slice first_slice(first), last_slice(last);
- db_->CompactRange(&first_slice, &last_slice, true, 2);
- // 1 sst after compaction
- CheckFileTypeCounts(dbname_, 0, 1, 1);
-
- // this time, we keep an iterator alive
- ReopenDB(true);
- Iterator *itr = 0;
- CreateTwoLevels();
- itr = db_->NewIterator(ReadOptions());
- db_->CompactRange(&first_slice, &last_slice, true, 2);
- // 3 sst after compaction with live iterator
- CheckFileTypeCounts(dbname_, 0, 3, 1);
- delete itr;
- // 1 sst after iterator deletion
- CheckFileTypeCounts(dbname_, 0, 1, 1);
-
- CloseDB();
-}
-
-TEST(DeleteFileTest, DeleteFileWithIterator) {
- CreateTwoLevels();
- ReadOptions options;
- Iterator* it = db_->NewIterator(options);
- std::vector<LiveFileMetaData> metadata;
- db_->GetLiveFilesMetaData(&metadata);
-
- std::string level2file = "";
-
- ASSERT_EQ((int)metadata.size(), 2);
- if (metadata[0].level == 1) {
- level2file = metadata[1].name;
- } else {
- level2file = metadata[0].name;
- }
-
- Status status = db_->DeleteFile(level2file);
- fprintf(stdout, "Deletion status %s: %s\n",
- level2file.c_str(), status.ToString().c_str());
- ASSERT_TRUE(status.ok());
- it->SeekToFirst();
- int numKeysIterated = 0;
- while(it->Valid()) {
- numKeysIterated++;
- it->Next();
- }
- ASSERT_EQ(numKeysIterated, 50000);
- delete it;
- CloseDB();
-}
-
-TEST(DeleteFileTest, DeleteLogFiles) {
- AddKeys(10, 0);
- VectorLogPtr logfiles;
- db_->GetSortedWalFiles(logfiles);
- ASSERT_GT(logfiles.size(), 0UL);
- // Take the last log file which is expected to be alive and try to delete it
- // Should not succeed because live logs are not allowed to be deleted
- std::unique_ptr<LogFile> alive_log = std::move(logfiles.back());
- ASSERT_EQ(alive_log->Type(), kAliveLogFile);
- ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
- fprintf(stdout, "Deleting alive log file %s\n",
- alive_log->PathName().c_str());
- ASSERT_TRUE(!db_->DeleteFile(alive_log->PathName()).ok());
- ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
- logfiles.clear();
-
- // Call Flush to bring about a new working log file and add more keys
- // Call Flush again to flush out memtable and move alive log to archived log
- // and try to delete the archived log file
- FlushOptions fopts;
- db_->Flush(fopts);
- AddKeys(10, 0);
- db_->Flush(fopts);
- db_->GetSortedWalFiles(logfiles);
- ASSERT_GT(logfiles.size(), 0UL);
- std::unique_ptr<LogFile> archived_log = std::move(logfiles.front());
- ASSERT_EQ(archived_log->Type(), kArchivedLogFile);
- ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" +
- archived_log->PathName()));
- fprintf(stdout, "Deleting archived log file %s\n",
- archived_log->PathName().c_str());
- ASSERT_OK(db_->DeleteFile(archived_log->PathName()));
- ASSERT_TRUE(!env_->FileExists(options_.wal_dir + "/" +
- archived_log->PathName()));
- CloseDB();
-}
-
-} //namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/filename.h"
-
-#include <ctype.h>
-#include <stdio.h>
-#include "db/dbformat.h"
-#include "rocksdb/env.h"
-#include "util/logging.h"
-
-namespace rocksdb {
-
-// Given a path, flatten the path name by replacing all chars not in
-// {[0-9,a-z,A-Z,-,_,.]} with _. And append '\0' at the end.
-// Return the number of chars stored in dest not including the trailing '\0'.
-static int FlattenPath(const std::string& path, char* dest, int len) {
- int write_idx = 0;
- int i = 0;
- int src_len = path.size();
-
- while (i < src_len && write_idx < len - 1) {
- if ((path[i] >= 'a' && path[i] <= 'z') ||
- (path[i] >= '0' && path[i] <= '9') ||
- (path[i] >= 'A' && path[i] <= 'Z') ||
- path[i] == '-' ||
- path[i] == '.' ||
- path[i] == '_'){
- dest[write_idx++] = path[i];
- } else {
- if (i > 0)
- dest[write_idx++] = '_';
- }
- i++;
- }
-
- dest[write_idx] = '\0';
- return write_idx;
-}
-
-// A utility routine: write "data" to the named file and Sync() it.
-extern Status WriteStringToFileSync(Env* env, const Slice& data,
- const std::string& fname);
-
-static std::string MakeFileName(const std::string& name, uint64_t number,
- const char* suffix) {
- char buf[100];
- snprintf(buf, sizeof(buf), "/%06llu.%s",
- static_cast<unsigned long long>(number),
- suffix);
- return name + buf;
-}
-
-std::string LogFileName(const std::string& name, uint64_t number) {
- assert(number > 0);
- return MakeFileName(name, number, "log");
-}
-
-std::string ArchivalDirectory(const std::string& dir) {
- return dir + "/" + ARCHIVAL_DIR;
-}
-std::string ArchivedLogFileName(const std::string& name, uint64_t number) {
- assert(number > 0);
- return MakeFileName(name + "/" + ARCHIVAL_DIR, number, "log");
-}
-
-std::string TableFileName(const std::string& name, uint64_t number) {
- assert(number > 0);
- return MakeFileName(name, number, "sst");
-}
-
-std::string DescriptorFileName(const std::string& dbname, uint64_t number) {
- assert(number > 0);
- char buf[100];
- snprintf(buf, sizeof(buf), "/MANIFEST-%06llu",
- static_cast<unsigned long long>(number));
- return dbname + buf;
-}
-
-std::string CurrentFileName(const std::string& dbname) {
- return dbname + "/CURRENT";
-}
-
-std::string LockFileName(const std::string& dbname) {
- return dbname + "/LOCK";
-}
-
-std::string TempFileName(const std::string& dbname, uint64_t number) {
- assert(number >= 0);
- return MakeFileName(dbname, number, "dbtmp");
-}
-
-std::string InfoLogFileName(const std::string& dbname,
- const std::string& db_path, const std::string& log_dir) {
- if (log_dir.empty())
- return dbname + "/LOG";
-
- char flatten_db_path[256];
- FlattenPath(db_path, flatten_db_path, 256);
- return log_dir + "/" + flatten_db_path + "_LOG";
-}
-
-// Return the name of the old info log file for "dbname".
-std::string OldInfoLogFileName(const std::string& dbname, uint64_t ts,
- const std::string& db_path, const std::string& log_dir) {
- char buf[50];
- snprintf(buf, sizeof(buf), "%llu", static_cast<unsigned long long>(ts));
-
- if (log_dir.empty())
- return dbname + "/LOG.old." + buf;
-
- char flatten_db_path[256];
- FlattenPath(db_path, flatten_db_path, 256);
- return log_dir + "/" + flatten_db_path + "_LOG.old." + buf;
-}
-
-std::string MetaDatabaseName(const std::string& dbname, uint64_t number) {
- char buf[100];
- snprintf(buf, sizeof(buf), "/METADB-%llu",
- static_cast<unsigned long long>(number));
- return dbname + buf;
-}
-
-std::string IdentityFileName(const std::string& dbname) {
- return dbname + "/IDENTITY";
-}
-
-// Owned filenames have the form:
-// dbname/IDENTITY
-// dbname/CURRENT
-// dbname/LOCK
-// dbname/LOG
-// dbname/LOG.old.[0-9]+
-// dbname/MANIFEST-[0-9]+
-// dbname/[0-9]+.(log|sst)
-// dbname/METADB-[0-9]+
-// Disregards / at the beginning
-bool ParseFileName(const std::string& fname,
- uint64_t* number,
- FileType* type,
- WalFileType* log_type) {
- Slice rest(fname);
- if (fname.length() > 1 && fname[0] == '/') {
- rest.remove_prefix(1);
- }
- if (rest == "IDENTITY") {
- *number = 0;
- *type = kIdentityFile;
- } else if (rest == "CURRENT") {
- *number = 0;
- *type = kCurrentFile;
- } else if (rest == "LOCK") {
- *number = 0;
- *type = kDBLockFile;
- } else if (rest == "LOG" || rest == "LOG.old") {
- *number = 0;
- *type = kInfoLogFile;
- } else if (rest.starts_with("LOG.old.")) {
- uint64_t ts_suffix;
- // sizeof also counts the trailing '\0'.
- rest.remove_prefix(sizeof("LOG.old.") - 1);
- if (!ConsumeDecimalNumber(&rest, &ts_suffix)) {
- return false;
- }
- *number = ts_suffix;
- *type = kInfoLogFile;
- } else if (rest.starts_with("MANIFEST-")) {
- rest.remove_prefix(strlen("MANIFEST-"));
- uint64_t num;
- if (!ConsumeDecimalNumber(&rest, &num)) {
- return false;
- }
- if (!rest.empty()) {
- return false;
- }
- *type = kDescriptorFile;
- *number = num;
- } else if (rest.starts_with("METADB-")) {
- rest.remove_prefix(strlen("METADB-"));
- uint64_t num;
- if (!ConsumeDecimalNumber(&rest, &num)) {
- return false;
- }
- if (!rest.empty()) {
- return false;
- }
- *type = kMetaDatabase;
- *number = num;
- } else {
- // Avoid strtoull() to keep filename format independent of the
- // current locale
- bool archive_dir_found = false;
- if (rest.starts_with(ARCHIVAL_DIR)) {
- if (rest.size() <= ARCHIVAL_DIR.size()) {
- return false;
- }
- rest.remove_prefix(ARCHIVAL_DIR.size() + 1); // Add 1 to remove / also
- if (log_type) {
- *log_type = kArchivedLogFile;
- }
- archive_dir_found = true;
- }
- uint64_t num;
- if (!ConsumeDecimalNumber(&rest, &num)) {
- return false;
- }
- Slice suffix = rest;
- if (suffix == Slice(".log")) {
- *type = kLogFile;
- if (log_type && !archive_dir_found) {
- *log_type = kAliveLogFile;
- }
- } else if (archive_dir_found) {
- return false; // Archive dir can contain only log files
- } else if (suffix == Slice(".sst")) {
- *type = kTableFile;
- } else if (suffix == Slice(".dbtmp")) {
- *type = kTempFile;
- } else {
- return false;
- }
- *number = num;
- }
- return true;
-}
-
-Status SetCurrentFile(Env* env, const std::string& dbname,
- uint64_t descriptor_number) {
- // Remove leading "dbname/" and add newline to manifest file name
- std::string manifest = DescriptorFileName(dbname, descriptor_number);
- Slice contents = manifest;
- assert(contents.starts_with(dbname + "/"));
- contents.remove_prefix(dbname.size() + 1);
- std::string tmp = TempFileName(dbname, descriptor_number);
- Status s = WriteStringToFileSync(env, contents.ToString() + "\n", tmp);
- if (s.ok()) {
- s = env->RenameFile(tmp, CurrentFileName(dbname));
- }
- if (!s.ok()) {
- env->DeleteFile(tmp);
- }
- return s;
-}
-
-Status SetIdentityFile(Env* env, const std::string& dbname) {
- std::string id = env->GenerateUniqueId();
- assert(!id.empty());
- // Reserve the filename dbname/000000.dbtmp for the temporary identity file
- std::string tmp = TempFileName(dbname, 0);
- Status s = WriteStringToFileSync(env, id, tmp);
- if (s.ok()) {
- s = env->RenameFile(tmp, IdentityFileName(dbname));
- }
- if (!s.ok()) {
- env->DeleteFile(tmp);
- }
- return s;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// File names used by DB code
-
-#pragma once
-#include <stdint.h>
-#include <string>
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-#include "rocksdb/transaction_log.h"
-#include "port/port.h"
-
-namespace rocksdb {
-
-class Env;
-
-enum FileType {
- kLogFile,
- kDBLockFile,
- kTableFile,
- kDescriptorFile,
- kCurrentFile,
- kTempFile,
- kInfoLogFile, // Either the current one, or an old one
- kMetaDatabase,
- kIdentityFile
-};
-
-// Return the name of the log file with the specified number
-// in the db named by "dbname". The result will be prefixed with
-// "dbname".
-extern std::string LogFileName(const std::string& dbname, uint64_t number);
-
-static const std::string ARCHIVAL_DIR = "archive";
-
-extern std::string ArchivalDirectory(const std::string& dbname);
-
-// Return the name of the archived log file with the specified number
-// in the db named by "dbname". The result will be prefixed with "dbname".
-extern std::string ArchivedLogFileName(const std::string& dbname,
- uint64_t num);
-
-// Return the name of the sstable with the specified number
-// in the db named by "dbname". The result will be prefixed with
-// "dbname".
-extern std::string TableFileName(const std::string& dbname, uint64_t number);
-
-// Return the name of the descriptor file for the db named by
-// "dbname" and the specified incarnation number. The result will be
-// prefixed with "dbname".
-extern std::string DescriptorFileName(const std::string& dbname,
- uint64_t number);
-
-// Return the name of the current file. This file contains the name
-// of the current manifest file. The result will be prefixed with
-// "dbname".
-extern std::string CurrentFileName(const std::string& dbname);
-
-// Return the name of the lock file for the db named by
-// "dbname". The result will be prefixed with "dbname".
-extern std::string LockFileName(const std::string& dbname);
-
-// Return the name of a temporary file owned by the db named "dbname".
-// The result will be prefixed with "dbname".
-extern std::string TempFileName(const std::string& dbname, uint64_t number);
-
-// Return the name of the info log file for "dbname".
-extern std::string InfoLogFileName(const std::string& dbname,
- const std::string& db_path="", const std::string& log_dir="");
-
-// Return the name of the old info log file for "dbname".
-extern std::string OldInfoLogFileName(const std::string& dbname, uint64_t ts,
- const std::string& db_path="", const std::string& log_dir="");
-
-// Return the name to use for a metadatabase. The result will be prefixed with
-// "dbname".
-extern std::string MetaDatabaseName(const std::string& dbname,
- uint64_t number);
-
-// Return the name of the Identity file which stores a unique number for the db
-// that will get regenerated if the db loses all its data and is recreated fresh
-// either from a backup-image or empty
-extern std::string IdentityFileName(const std::string& dbname);
-
-// If filename is a rocksdb file, store the type of the file in *type.
-// The number encoded in the filename is stored in *number. If the
-// filename was successfully parsed, returns true. Else return false.
-extern bool ParseFileName(const std::string& filename,
- uint64_t* number,
- FileType* type,
- WalFileType* log_type = nullptr);
-
-// Make the CURRENT file point to the descriptor file with the
-// specified number.
-extern Status SetCurrentFile(Env* env, const std::string& dbname,
- uint64_t descriptor_number);
-
-// Make the IDENTITY file for the db
-extern Status SetIdentityFile(Env* env, const std::string& dbname);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/filename.h"
-
-#include "db/dbformat.h"
-#include "port/port.h"
-#include "util/logging.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-class FileNameTest { };
-
-TEST(FileNameTest, Parse) {
- Slice db;
- FileType type;
- uint64_t number;
-
- // Successful parses
- static struct {
- const char* fname;
- uint64_t number;
- FileType type;
- } cases[] = {
- { "100.log", 100, kLogFile },
- { "0.log", 0, kLogFile },
- { "0.sst", 0, kTableFile },
- { "CURRENT", 0, kCurrentFile },
- { "LOCK", 0, kDBLockFile },
- { "MANIFEST-2", 2, kDescriptorFile },
- { "MANIFEST-7", 7, kDescriptorFile },
- { "METADB-2", 2, kMetaDatabase },
- { "METADB-7", 7, kMetaDatabase },
- { "LOG", 0, kInfoLogFile },
- { "LOG.old", 0, kInfoLogFile },
- { "18446744073709551615.log", 18446744073709551615ull, kLogFile },
- };
- for (unsigned int i = 0; i < sizeof(cases) / sizeof(cases[0]); i++) {
- std::string f = cases[i].fname;
- ASSERT_TRUE(ParseFileName(f, &number, &type)) << f;
- ASSERT_EQ(cases[i].type, type) << f;
- ASSERT_EQ(cases[i].number, number) << f;
- }
-
- // Errors
- static const char* errors[] = {
- "",
- "foo",
- "foo-dx-100.log",
- ".log",
- "",
- "manifest",
- "CURREN",
- "CURRENTX",
- "MANIFES",
- "MANIFEST",
- "MANIFEST-",
- "XMANIFEST-3",
- "MANIFEST-3x",
- "META",
- "METADB",
- "METADB-",
- "XMETADB-3",
- "METADB-3x",
- "LOC",
- "LOCKx",
- "LO",
- "LOGx",
- "18446744073709551616.log",
- "184467440737095516150.log",
- "100",
- "100.",
- "100.lop"
- };
- for (unsigned int i = 0; i < sizeof(errors) / sizeof(errors[0]); i++) {
- std::string f = errors[i];
- ASSERT_TRUE(!ParseFileName(f, &number, &type)) << f;
- };
-}
-
-TEST(FileNameTest, Construction) {
- uint64_t number;
- FileType type;
- std::string fname;
-
- fname = CurrentFileName("foo");
- ASSERT_EQ("foo/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(0U, number);
- ASSERT_EQ(kCurrentFile, type);
-
- fname = LockFileName("foo");
- ASSERT_EQ("foo/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(0U, number);
- ASSERT_EQ(kDBLockFile, type);
-
- fname = LogFileName("foo", 192);
- ASSERT_EQ("foo/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(192U, number);
- ASSERT_EQ(kLogFile, type);
-
- fname = TableFileName("bar", 200);
- ASSERT_EQ("bar/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(200U, number);
- ASSERT_EQ(kTableFile, type);
-
- fname = DescriptorFileName("bar", 100);
- ASSERT_EQ("bar/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(100U, number);
- ASSERT_EQ(kDescriptorFile, type);
-
- fname = TempFileName("tmp", 999);
- ASSERT_EQ("tmp/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(999U, number);
- ASSERT_EQ(kTempFile, type);
-
- fname = MetaDatabaseName("met", 100);
- ASSERT_EQ("met/", std::string(fname.data(), 4));
- ASSERT_TRUE(ParseFileName(fname.c_str() + 4, &number, &type));
- ASSERT_EQ(100U, number);
- ASSERT_EQ(kMetaDatabase, type);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Log format information shared by reader and writer.
-// See ../doc/log_format.txt for more detail.
-
-#pragma once
-namespace rocksdb {
-namespace log {
-
-enum RecordType {
- // Zero is reserved for preallocated files
- kZeroType = 0,
-
- kFullType = 1,
-
- // For fragments
- kFirstType = 2,
- kMiddleType = 3,
- kLastType = 4
-};
-static const int kMaxRecordType = kLastType;
-
-static const unsigned int kBlockSize = 32768;
-
-// Header is checksum (4 bytes), type (1 byte), length (2 bytes).
-static const int kHeaderSize = 4 + 1 + 2;
-
-} // namespace log
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/log_reader.h"
-
-#include <stdio.h>
-#include "rocksdb/env.h"
-#include "util/coding.h"
-#include "util/crc32c.h"
-
-namespace rocksdb {
-namespace log {
-
-Reader::Reporter::~Reporter() {
-}
-
-Reader::Reader(unique_ptr<SequentialFile>&& file, Reporter* reporter,
- bool checksum, uint64_t initial_offset)
- : file_(std::move(file)),
- reporter_(reporter),
- checksum_(checksum),
- backing_store_(new char[kBlockSize]),
- buffer_(),
- eof_(false),
- last_record_offset_(0),
- end_of_buffer_offset_(0),
- initial_offset_(initial_offset) {
-}
-
-Reader::~Reader() {
- delete[] backing_store_;
-}
-
-bool Reader::SkipToInitialBlock() {
- size_t offset_in_block = initial_offset_ % kBlockSize;
- uint64_t block_start_location = initial_offset_ - offset_in_block;
-
- // Don't search a block if we'd be in the trailer
- if (offset_in_block > kBlockSize - 6) {
- offset_in_block = 0;
- block_start_location += kBlockSize;
- }
-
- end_of_buffer_offset_ = block_start_location;
-
- // Skip to start of first block that can contain the initial record
- if (block_start_location > 0) {
- Status skip_status = file_->Skip(block_start_location);
- if (!skip_status.ok()) {
- ReportDrop(block_start_location, skip_status);
- return false;
- }
- }
-
- return true;
-}
-
-bool Reader::ReadRecord(Slice* record, std::string* scratch) {
- if (last_record_offset_ < initial_offset_) {
- if (!SkipToInitialBlock()) {
- return false;
- }
- }
-
- scratch->clear();
- record->clear();
- bool in_fragmented_record = false;
- // Record offset of the logical record that we're reading
- // 0 is a dummy value to make compilers happy
- uint64_t prospective_record_offset = 0;
-
- Slice fragment;
- while (true) {
- uint64_t physical_record_offset = end_of_buffer_offset_ - buffer_.size();
- const unsigned int record_type = ReadPhysicalRecord(&fragment);
- switch (record_type) {
- case kFullType:
- if (in_fragmented_record) {
- // Handle bug in earlier versions of log::Writer where
- // it could emit an empty kFirstType record at the tail end
- // of a block followed by a kFullType or kFirstType record
- // at the beginning of the next block.
- if (scratch->empty()) {
- in_fragmented_record = false;
- } else {
- ReportCorruption(scratch->size(), "partial record without end(1)");
- }
- }
- prospective_record_offset = physical_record_offset;
- scratch->clear();
- *record = fragment;
- last_record_offset_ = prospective_record_offset;
- return true;
-
- case kFirstType:
- if (in_fragmented_record) {
- // Handle bug in earlier versions of log::Writer where
- // it could emit an empty kFirstType record at the tail end
- // of a block followed by a kFullType or kFirstType record
- // at the beginning of the next block.
- if (scratch->empty()) {
- in_fragmented_record = false;
- } else {
- ReportCorruption(scratch->size(), "partial record without end(2)");
- }
- }
- prospective_record_offset = physical_record_offset;
- scratch->assign(fragment.data(), fragment.size());
- in_fragmented_record = true;
- break;
-
- case kMiddleType:
- if (!in_fragmented_record) {
- ReportCorruption(fragment.size(),
- "missing start of fragmented record(1)");
- } else {
- scratch->append(fragment.data(), fragment.size());
- }
- break;
-
- case kLastType:
- if (!in_fragmented_record) {
- ReportCorruption(fragment.size(),
- "missing start of fragmented record(2)");
- } else {
- scratch->append(fragment.data(), fragment.size());
- *record = Slice(*scratch);
- last_record_offset_ = prospective_record_offset;
- return true;
- }
- break;
-
- case kEof:
- if (in_fragmented_record) {
- ReportCorruption(scratch->size(), "partial record without end(3)");
- scratch->clear();
- }
- return false;
-
- case kBadRecord:
- if (in_fragmented_record) {
- ReportCorruption(scratch->size(), "error in middle of record");
- in_fragmented_record = false;
- scratch->clear();
- }
- break;
-
- default: {
- char buf[40];
- snprintf(buf, sizeof(buf), "unknown record type %u", record_type);
- ReportCorruption(
- (fragment.size() + (in_fragmented_record ? scratch->size() : 0)),
- buf);
- in_fragmented_record = false;
- scratch->clear();
- break;
- }
- }
- }
- return false;
-}
-
-uint64_t Reader::LastRecordOffset() {
- return last_record_offset_;
-}
-
-void Reader::ReportCorruption(size_t bytes, const char* reason) {
- ReportDrop(bytes, Status::Corruption(reason));
-}
-
-void Reader::ReportDrop(size_t bytes, const Status& reason) {
- if (reporter_ != nullptr &&
- end_of_buffer_offset_ - buffer_.size() - bytes >= initial_offset_) {
- reporter_->Corruption(bytes, reason);
- }
-}
-
-unsigned int Reader::ReadPhysicalRecord(Slice* result) {
- while (true) {
- if (buffer_.size() < (size_t)kHeaderSize) {
- if (!eof_) {
- // Last read was a full read, so this is a trailer to skip
- buffer_.clear();
- Status status = file_->Read(kBlockSize, &buffer_, backing_store_);
- end_of_buffer_offset_ += buffer_.size();
- if (!status.ok()) {
- buffer_.clear();
- ReportDrop(kBlockSize, status);
- eof_ = true;
- return kEof;
- } else if (buffer_.size() < (size_t)kBlockSize) {
- eof_ = true;
- }
- continue;
- } else if (buffer_.size() == 0) {
- // End of file
- return kEof;
- } else {
- size_t drop_size = buffer_.size();
- buffer_.clear();
- ReportCorruption(drop_size, "truncated record at end of file");
- return kEof;
- }
- }
-
- // Parse the header
- const char* header = buffer_.data();
- const uint32_t a = static_cast<uint32_t>(header[4]) & 0xff;
- const uint32_t b = static_cast<uint32_t>(header[5]) & 0xff;
- const unsigned int type = header[6];
- const uint32_t length = a | (b << 8);
- if (kHeaderSize + length > buffer_.size()) {
- size_t drop_size = buffer_.size();
- buffer_.clear();
- ReportCorruption(drop_size, "bad record length");
- return kBadRecord;
- }
-
- if (type == kZeroType && length == 0) {
- // Skip zero length record without reporting any drops since
- // such records are produced by the mmap based writing code in
- // env_posix.cc that preallocates file regions.
- buffer_.clear();
- return kBadRecord;
- }
-
- // Check crc
- if (checksum_) {
- uint32_t expected_crc = crc32c::Unmask(DecodeFixed32(header));
- uint32_t actual_crc = crc32c::Value(header + 6, 1 + length);
- if (actual_crc != expected_crc) {
- // Drop the rest of the buffer since "length" itself may have
- // been corrupted and if we trust it, we could find some
- // fragment of a real log record that just happens to look
- // like a valid log record.
- size_t drop_size = buffer_.size();
- buffer_.clear();
- ReportCorruption(drop_size, "checksum mismatch");
- return kBadRecord;
- }
- }
-
- buffer_.remove_prefix(kHeaderSize + length);
-
- // Skip physical record that started before initial_offset_
- if (end_of_buffer_offset_ - buffer_.size() - kHeaderSize - length <
- initial_offset_) {
- result->clear();
- return kBadRecord;
- }
-
- *result = Slice(header + kHeaderSize, length);
- return type;
- }
-}
-
-} // namespace log
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <memory>
-#include <stdint.h>
-
-#include "db/log_format.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-class SequentialFile;
-using std::unique_ptr;
-
-namespace log {
-
-class Reader {
- public:
- // Interface for reporting errors.
- class Reporter {
- public:
- virtual ~Reporter();
-
- // Some corruption was detected. "size" is the approximate number
- // of bytes dropped due to the corruption.
- virtual void Corruption(size_t bytes, const Status& status) = 0;
- };
-
- // Create a reader that will return log records from "*file".
- // "*file" must remain live while this Reader is in use.
- //
- // If "reporter" is non-nullptr, it is notified whenever some data is
- // dropped due to a detected corruption. "*reporter" must remain
- // live while this Reader is in use.
- //
- // If "checksum" is true, verify checksums if available.
- //
- // The Reader will start reading at the first record located at physical
- // position >= initial_offset within the file.
- Reader(unique_ptr<SequentialFile>&& file, Reporter* reporter,
- bool checksum, uint64_t initial_offset);
-
- ~Reader();
-
- // Read the next record into *record. Returns true if read
- // successfully, false if we hit end of the input. May use
- // "*scratch" as temporary storage. The contents filled in *record
- // will only be valid until the next mutating operation on this
- // reader or the next mutation to *scratch.
- bool ReadRecord(Slice* record, std::string* scratch);
-
- // Returns the physical offset of the last record returned by ReadRecord.
- //
- // Undefined before the first call to ReadRecord.
- uint64_t LastRecordOffset();
-
- // returns true if the reader has encountered an eof condition.
- bool IsEOF() {
- return eof_;
- }
-
- // when we know more data has been written to the file. we can use this
- // function to force the reader to look again in the file.
- void UnmarkEOF() {
- eof_ = false;
- }
-
- SequentialFile* file() { return file_.get(); }
-
- private:
- const unique_ptr<SequentialFile> file_;
- Reporter* const reporter_;
- bool const checksum_;
- char* const backing_store_;
- Slice buffer_;
- bool eof_; // Last Read() indicated EOF by returning < kBlockSize
-
- // Offset of the last record returned by ReadRecord.
- uint64_t last_record_offset_;
- // Offset of the first location past the end of buffer_.
- uint64_t end_of_buffer_offset_;
-
- // Offset at which to start looking for the first record to return
- uint64_t const initial_offset_;
-
- // Extend record types with the following special values
- enum {
- kEof = kMaxRecordType + 1,
- // Returned whenever we find an invalid physical record.
- // Currently there are three situations in which this happens:
- // * The record has an invalid CRC (ReadPhysicalRecord reports a drop)
- // * The record is a 0-length record (No drop is reported)
- // * The record is below constructor's initial_offset (No drop is reported)
- kBadRecord = kMaxRecordType + 2
- };
-
- // Skips all blocks that are completely before "initial_offset_".
- //
- // Returns true on success. Handles reporting.
- bool SkipToInitialBlock();
-
- // Return type, or one of the preceding special values
- unsigned int ReadPhysicalRecord(Slice* result);
-
- // Reports dropped bytes to the reporter.
- // buffer_ must be updated to remove the dropped bytes prior to invocation.
- void ReportCorruption(size_t bytes, const char* reason);
- void ReportDrop(size_t bytes, const Status& reason);
-
- // No copying allowed
- Reader(const Reader&);
- void operator=(const Reader&);
-};
-
-} // namespace log
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/log_reader.h"
-#include "db/log_writer.h"
-#include "rocksdb/env.h"
-#include "util/coding.h"
-#include "util/crc32c.h"
-#include "util/random.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-namespace log {
-
-// Construct a string of the specified length made out of the supplied
-// partial string.
-static std::string BigString(const std::string& partial_string, size_t n) {
- std::string result;
- while (result.size() < n) {
- result.append(partial_string);
- }
- result.resize(n);
- return result;
-}
-
-// Construct a string from a number
-static std::string NumberString(int n) {
- char buf[50];
- snprintf(buf, sizeof(buf), "%d.", n);
- return std::string(buf);
-}
-
-// Return a skewed potentially long string
-static std::string RandomSkewedString(int i, Random* rnd) {
- return BigString(NumberString(i), rnd->Skewed(17));
-}
-
-class LogTest {
- private:
- class StringDest : public WritableFile {
- public:
- std::string contents_;
-
- virtual Status Close() { return Status::OK(); }
- virtual Status Flush() { return Status::OK(); }
- virtual Status Sync() { return Status::OK(); }
- virtual Status Append(const Slice& slice) {
- contents_.append(slice.data(), slice.size());
- return Status::OK();
- }
- };
-
- class StringSource : public SequentialFile {
- public:
- Slice contents_;
- bool force_error_;
- bool returned_partial_;
- StringSource() : force_error_(false), returned_partial_(false) { }
-
- virtual Status Read(size_t n, Slice* result, char* scratch) {
- ASSERT_TRUE(!returned_partial_) << "must not Read() after eof/error";
-
- if (force_error_) {
- force_error_ = false;
- returned_partial_ = true;
- return Status::Corruption("read error");
- }
-
- if (contents_.size() < n) {
- n = contents_.size();
- returned_partial_ = true;
- }
- *result = Slice(contents_.data(), n);
- contents_.remove_prefix(n);
- return Status::OK();
- }
-
- virtual Status Skip(uint64_t n) {
- if (n > contents_.size()) {
- contents_.clear();
- return Status::NotFound("in-memory file skipepd past end");
- }
-
- contents_.remove_prefix(n);
-
- return Status::OK();
- }
- };
-
- class ReportCollector : public Reader::Reporter {
- public:
- size_t dropped_bytes_;
- std::string message_;
-
- ReportCollector() : dropped_bytes_(0) { }
- virtual void Corruption(size_t bytes, const Status& status) {
- dropped_bytes_ += bytes;
- message_.append(status.ToString());
- }
- };
-
- std::string& dest_contents() {
- auto dest = dynamic_cast<StringDest*>(writer_.file());
- assert(dest);
- return dest->contents_;
- }
-
- const std::string& dest_contents() const {
- auto dest = dynamic_cast<const StringDest*>(writer_.file());
- assert(dest);
- return dest->contents_;
- }
-
- void reset_source_contents() {
- auto src = dynamic_cast<StringSource*>(reader_.file());
- assert(src);
- src->contents_ = dest_contents();
- }
-
- unique_ptr<StringDest> dest_holder_;
- unique_ptr<StringSource> source_holder_;
- ReportCollector report_;
- bool reading_;
- Writer writer_;
- Reader reader_;
-
- // Record metadata for testing initial offset functionality
- static size_t initial_offset_record_sizes_[];
- static uint64_t initial_offset_last_record_offsets_[];
-
- public:
- LogTest() : dest_holder_(new StringDest),
- source_holder_(new StringSource),
- reading_(false),
- writer_(std::move(dest_holder_)),
- reader_(std::move(source_holder_), &report_, true/*checksum*/,
- 0/*initial_offset*/) {
- }
-
- void Write(const std::string& msg) {
- ASSERT_TRUE(!reading_) << "Write() after starting to read";
- writer_.AddRecord(Slice(msg));
- }
-
- size_t WrittenBytes() const {
- return dest_contents().size();
- }
-
- std::string Read() {
- if (!reading_) {
- reading_ = true;
- reset_source_contents();
- }
- std::string scratch;
- Slice record;
- if (reader_.ReadRecord(&record, &scratch)) {
- return record.ToString();
- } else {
- return "EOF";
- }
- }
-
- void IncrementByte(int offset, int delta) {
- dest_contents()[offset] += delta;
- }
-
- void SetByte(int offset, char new_byte) {
- dest_contents()[offset] = new_byte;
- }
-
- void ShrinkSize(int bytes) {
- dest_contents().resize(dest_contents().size() - bytes);
- }
-
- void FixChecksum(int header_offset, int len) {
- // Compute crc of type/len/data
- uint32_t crc = crc32c::Value(&dest_contents()[header_offset+6], 1 + len);
- crc = crc32c::Mask(crc);
- EncodeFixed32(&dest_contents()[header_offset], crc);
- }
-
- void ForceError() {
- auto src = dynamic_cast<StringSource*>(reader_.file());
- src->force_error_ = true;
- }
-
- size_t DroppedBytes() const {
- return report_.dropped_bytes_;
- }
-
- std::string ReportMessage() const {
- return report_.message_;
- }
-
- // Returns OK iff recorded error message contains "msg"
- std::string MatchError(const std::string& msg) const {
- if (report_.message_.find(msg) == std::string::npos) {
- return report_.message_;
- } else {
- return "OK";
- }
- }
-
- void WriteInitialOffsetLog() {
- for (int i = 0; i < 4; i++) {
- std::string record(initial_offset_record_sizes_[i],
- static_cast<char>('a' + i));
- Write(record);
- }
- }
-
- void CheckOffsetPastEndReturnsNoRecords(uint64_t offset_past_end) {
- WriteInitialOffsetLog();
- reading_ = true;
- unique_ptr<StringSource> source(new StringSource);
- source->contents_ = dest_contents();
- unique_ptr<Reader> offset_reader(
- new Reader(std::move(source), &report_, true/*checksum*/,
- WrittenBytes() + offset_past_end));
- Slice record;
- std::string scratch;
- ASSERT_TRUE(!offset_reader->ReadRecord(&record, &scratch));
- }
-
- void CheckInitialOffsetRecord(uint64_t initial_offset,
- int expected_record_offset) {
- WriteInitialOffsetLog();
- reading_ = true;
- unique_ptr<StringSource> source(new StringSource);
- source->contents_ = dest_contents();
- unique_ptr<Reader> offset_reader(
- new Reader(std::move(source), &report_, true/*checksum*/,
- initial_offset));
- Slice record;
- std::string scratch;
- ASSERT_TRUE(offset_reader->ReadRecord(&record, &scratch));
- ASSERT_EQ(initial_offset_record_sizes_[expected_record_offset],
- record.size());
- ASSERT_EQ(initial_offset_last_record_offsets_[expected_record_offset],
- offset_reader->LastRecordOffset());
- ASSERT_EQ((char)('a' + expected_record_offset), record.data()[0]);
- }
-
-};
-
-size_t LogTest::initial_offset_record_sizes_[] =
- {10000, // Two sizable records in first block
- 10000,
- 2 * log::kBlockSize - 1000, // Span three blocks
- 1};
-
-uint64_t LogTest::initial_offset_last_record_offsets_[] =
- {0,
- kHeaderSize + 10000,
- 2 * (kHeaderSize + 10000),
- 2 * (kHeaderSize + 10000) +
- (2 * log::kBlockSize - 1000) + 3 * kHeaderSize};
-
-
-TEST(LogTest, Empty) {
- ASSERT_EQ("EOF", Read());
-}
-
-TEST(LogTest, ReadWrite) {
- Write("foo");
- Write("bar");
- Write("");
- Write("xxxx");
- ASSERT_EQ("foo", Read());
- ASSERT_EQ("bar", Read());
- ASSERT_EQ("", Read());
- ASSERT_EQ("xxxx", Read());
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ("EOF", Read()); // Make sure reads at eof work
-}
-
-TEST(LogTest, ManyBlocks) {
- for (int i = 0; i < 100000; i++) {
- Write(NumberString(i));
- }
- for (int i = 0; i < 100000; i++) {
- ASSERT_EQ(NumberString(i), Read());
- }
- ASSERT_EQ("EOF", Read());
-}
-
-TEST(LogTest, Fragmentation) {
- Write("small");
- Write(BigString("medium", 50000));
- Write(BigString("large", 100000));
- ASSERT_EQ("small", Read());
- ASSERT_EQ(BigString("medium", 50000), Read());
- ASSERT_EQ(BigString("large", 100000), Read());
- ASSERT_EQ("EOF", Read());
-}
-
-TEST(LogTest, MarginalTrailer) {
- // Make a trailer that is exactly the same length as an empty record.
- const int n = kBlockSize - 2*kHeaderSize;
- Write(BigString("foo", n));
- ASSERT_EQ((unsigned int)(kBlockSize - kHeaderSize), WrittenBytes());
- Write("");
- Write("bar");
- ASSERT_EQ(BigString("foo", n), Read());
- ASSERT_EQ("", Read());
- ASSERT_EQ("bar", Read());
- ASSERT_EQ("EOF", Read());
-}
-
-TEST(LogTest, MarginalTrailer2) {
- // Make a trailer that is exactly the same length as an empty record.
- const int n = kBlockSize - 2*kHeaderSize;
- Write(BigString("foo", n));
- ASSERT_EQ((unsigned int)(kBlockSize - kHeaderSize), WrittenBytes());
- Write("bar");
- ASSERT_EQ(BigString("foo", n), Read());
- ASSERT_EQ("bar", Read());
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(0U, DroppedBytes());
- ASSERT_EQ("", ReportMessage());
-}
-
-TEST(LogTest, ShortTrailer) {
- const int n = kBlockSize - 2*kHeaderSize + 4;
- Write(BigString("foo", n));
- ASSERT_EQ((unsigned int)(kBlockSize - kHeaderSize + 4), WrittenBytes());
- Write("");
- Write("bar");
- ASSERT_EQ(BigString("foo", n), Read());
- ASSERT_EQ("", Read());
- ASSERT_EQ("bar", Read());
- ASSERT_EQ("EOF", Read());
-}
-
-TEST(LogTest, AlignedEof) {
- const int n = kBlockSize - 2*kHeaderSize + 4;
- Write(BigString("foo", n));
- ASSERT_EQ((unsigned int)(kBlockSize - kHeaderSize + 4), WrittenBytes());
- ASSERT_EQ(BigString("foo", n), Read());
- ASSERT_EQ("EOF", Read());
-}
-
-TEST(LogTest, RandomRead) {
- const int N = 500;
- Random write_rnd(301);
- for (int i = 0; i < N; i++) {
- Write(RandomSkewedString(i, &write_rnd));
- }
- Random read_rnd(301);
- for (int i = 0; i < N; i++) {
- ASSERT_EQ(RandomSkewedString(i, &read_rnd), Read());
- }
- ASSERT_EQ("EOF", Read());
-}
-
-// Tests of all the error paths in log_reader.cc follow:
-
-TEST(LogTest, ReadError) {
- Write("foo");
- ForceError();
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ((unsigned int)kBlockSize, DroppedBytes());
- ASSERT_EQ("OK", MatchError("read error"));
-}
-
-TEST(LogTest, BadRecordType) {
- Write("foo");
- // Type is stored in header[6]
- IncrementByte(6, 100);
- FixChecksum(0, 3);
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(3U, DroppedBytes());
- ASSERT_EQ("OK", MatchError("unknown record type"));
-}
-
-TEST(LogTest, TruncatedTrailingRecord) {
- Write("foo");
- ShrinkSize(4); // Drop all payload as well as a header byte
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ((unsigned int)(kHeaderSize - 1), DroppedBytes());
- ASSERT_EQ("OK", MatchError("truncated record at end of file"));
-}
-
-TEST(LogTest, BadLength) {
- Write("foo");
- ShrinkSize(1);
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ((unsigned int)(kHeaderSize + 2), DroppedBytes());
- ASSERT_EQ("OK", MatchError("bad record length"));
-}
-
-TEST(LogTest, ChecksumMismatch) {
- Write("foo");
- IncrementByte(0, 10);
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(10U, DroppedBytes());
- ASSERT_EQ("OK", MatchError("checksum mismatch"));
-}
-
-TEST(LogTest, UnexpectedMiddleType) {
- Write("foo");
- SetByte(6, kMiddleType);
- FixChecksum(0, 3);
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(3U, DroppedBytes());
- ASSERT_EQ("OK", MatchError("missing start"));
-}
-
-TEST(LogTest, UnexpectedLastType) {
- Write("foo");
- SetByte(6, kLastType);
- FixChecksum(0, 3);
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(3U, DroppedBytes());
- ASSERT_EQ("OK", MatchError("missing start"));
-}
-
-TEST(LogTest, UnexpectedFullType) {
- Write("foo");
- Write("bar");
- SetByte(6, kFirstType);
- FixChecksum(0, 3);
- ASSERT_EQ("bar", Read());
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(3U, DroppedBytes());
- ASSERT_EQ("OK", MatchError("partial record without end"));
-}
-
-TEST(LogTest, UnexpectedFirstType) {
- Write("foo");
- Write(BigString("bar", 100000));
- SetByte(6, kFirstType);
- FixChecksum(0, 3);
- ASSERT_EQ(BigString("bar", 100000), Read());
- ASSERT_EQ("EOF", Read());
- ASSERT_EQ(3U, DroppedBytes());
- ASSERT_EQ("OK", MatchError("partial record without end"));
-}
-
-TEST(LogTest, ErrorJoinsRecords) {
- // Consider two fragmented records:
- // first(R1) last(R1) first(R2) last(R2)
- // where the middle two fragments disappear. We do not want
- // first(R1),last(R2) to get joined and returned as a valid record.
-
- // Write records that span two blocks
- Write(BigString("foo", kBlockSize));
- Write(BigString("bar", kBlockSize));
- Write("correct");
-
- // Wipe the middle block
- for (unsigned int offset = kBlockSize; offset < 2*kBlockSize; offset++) {
- SetByte(offset, 'x');
- }
-
- ASSERT_EQ("correct", Read());
- ASSERT_EQ("EOF", Read());
- const unsigned int dropped = DroppedBytes();
- ASSERT_LE(dropped, 2*kBlockSize + 100);
- ASSERT_GE(dropped, 2*kBlockSize);
-}
-
-TEST(LogTest, ReadStart) {
- CheckInitialOffsetRecord(0, 0);
-}
-
-TEST(LogTest, ReadSecondOneOff) {
- CheckInitialOffsetRecord(1, 1);
-}
-
-TEST(LogTest, ReadSecondTenThousand) {
- CheckInitialOffsetRecord(10000, 1);
-}
-
-TEST(LogTest, ReadSecondStart) {
- CheckInitialOffsetRecord(10007, 1);
-}
-
-TEST(LogTest, ReadThirdOneOff) {
- CheckInitialOffsetRecord(10008, 2);
-}
-
-TEST(LogTest, ReadThirdStart) {
- CheckInitialOffsetRecord(20014, 2);
-}
-
-TEST(LogTest, ReadFourthOneOff) {
- CheckInitialOffsetRecord(20015, 3);
-}
-
-TEST(LogTest, ReadFourthFirstBlockTrailer) {
- CheckInitialOffsetRecord(log::kBlockSize - 4, 3);
-}
-
-TEST(LogTest, ReadFourthMiddleBlock) {
- CheckInitialOffsetRecord(log::kBlockSize + 1, 3);
-}
-
-TEST(LogTest, ReadFourthLastBlock) {
- CheckInitialOffsetRecord(2 * log::kBlockSize + 1, 3);
-}
-
-TEST(LogTest, ReadFourthStart) {
- CheckInitialOffsetRecord(
- 2 * (kHeaderSize + 1000) + (2 * log::kBlockSize - 1000) + 3 * kHeaderSize,
- 3);
-}
-
-TEST(LogTest, ReadEnd) {
- CheckOffsetPastEndReturnsNoRecords(0);
-}
-
-TEST(LogTest, ReadPastEnd) {
- CheckOffsetPastEndReturnsNoRecords(5);
-}
-
-} // namespace log
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/log_writer.h"
-
-#include <stdint.h>
-#include "rocksdb/env.h"
-#include "util/coding.h"
-#include "util/crc32c.h"
-
-namespace rocksdb {
-namespace log {
-
-Writer::Writer(unique_ptr<WritableFile>&& dest)
- : dest_(std::move(dest)),
- block_offset_(0) {
- for (int i = 0; i <= kMaxRecordType; i++) {
- char t = static_cast<char>(i);
- type_crc_[i] = crc32c::Value(&t, 1);
- }
-}
-
-Writer::~Writer() {
-}
-
-Status Writer::AddRecord(const Slice& slice) {
- const char* ptr = slice.data();
- size_t left = slice.size();
-
- // Fragment the record if necessary and emit it. Note that if slice
- // is empty, we still want to iterate once to emit a single
- // zero-length record
- Status s;
- bool begin = true;
- do {
- const int leftover = kBlockSize - block_offset_;
- assert(leftover >= 0);
- if (leftover < kHeaderSize) {
- // Switch to a new block
- if (leftover > 0) {
- // Fill the trailer (literal below relies on kHeaderSize being 7)
- assert(kHeaderSize == 7);
- dest_->Append(Slice("\x00\x00\x00\x00\x00\x00", leftover));
- }
- block_offset_ = 0;
- }
-
- // Invariant: we never leave < kHeaderSize bytes in a block.
- assert(kBlockSize - block_offset_ - kHeaderSize >= 0);
-
- const size_t avail = kBlockSize - block_offset_ - kHeaderSize;
- const size_t fragment_length = (left < avail) ? left : avail;
-
- RecordType type;
- const bool end = (left == fragment_length);
- if (begin && end) {
- type = kFullType;
- } else if (begin) {
- type = kFirstType;
- } else if (end) {
- type = kLastType;
- } else {
- type = kMiddleType;
- }
-
- s = EmitPhysicalRecord(type, ptr, fragment_length);
- ptr += fragment_length;
- left -= fragment_length;
- begin = false;
- } while (s.ok() && left > 0);
- return s;
-}
-
-Status Writer::EmitPhysicalRecord(RecordType t, const char* ptr, size_t n) {
- assert(n <= 0xffff); // Must fit in two bytes
- assert(block_offset_ + kHeaderSize + n <= kBlockSize);
-
- // Format the header
- char buf[kHeaderSize];
- buf[4] = static_cast<char>(n & 0xff);
- buf[5] = static_cast<char>(n >> 8);
- buf[6] = static_cast<char>(t);
-
- // Compute the crc of the record type and the payload.
- uint32_t crc = crc32c::Extend(type_crc_[t], ptr, n);
- crc = crc32c::Mask(crc); // Adjust for storage
- EncodeFixed32(buf, crc);
-
- // Write the header and the payload
- Status s = dest_->Append(Slice(buf, kHeaderSize));
- if (s.ok()) {
- s = dest_->Append(Slice(ptr, n));
- if (s.ok()) {
- s = dest_->Flush();
- }
- }
- block_offset_ += kHeaderSize + n;
- return s;
-}
-
-} // namespace log
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <memory>
-#include <stdint.h>
-#include "db/log_format.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-class WritableFile;
-
-using std::unique_ptr;
-
-namespace log {
-
-class Writer {
- public:
- // Create a writer that will append data to "*dest".
- // "*dest" must be initially empty.
- // "*dest" must remain live while this Writer is in use.
- explicit Writer(unique_ptr<WritableFile>&& dest);
- ~Writer();
-
- Status AddRecord(const Slice& slice);
-
- WritableFile* file() { return dest_.get(); }
- const WritableFile* file() const { return dest_.get(); }
-
- private:
- unique_ptr<WritableFile> dest_;
- int block_offset_; // Current offset in block
-
- // crc32c values for all supported record types. These are
- // pre-computed to reduce the overhead of computing the crc of the
- // record type stored in the header.
- uint32_t type_crc_[kMaxRecordType + 1];
-
- Status EmitPhysicalRecord(RecordType type, const char* ptr, size_t length);
-
- // No copying allowed
- Writer(const Writer&);
- void operator=(const Writer&);
-};
-
-} // namespace log
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/memtable.h"
-
-#include <memory>
-
-#include "db/dbformat.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/merge_operator.h"
-#include "util/coding.h"
-#include "util/mutexlock.h"
-#include "util/murmurhash.h"
-
-namespace std {
-template <>
-struct hash<rocksdb::Slice> {
- size_t operator()(const rocksdb::Slice& slice) const {
- return MurmurHash(slice.data(), slice.size(), 0);
- }
-};
-}
-
-namespace rocksdb {
-
-MemTable::MemTable(const InternalKeyComparator& cmp,
- std::shared_ptr<MemTableRepFactory> table_factory,
- int numlevel,
- const Options& options)
- : comparator_(cmp),
- refs_(0),
- arena_impl_(options.arena_block_size),
- table_(table_factory->CreateMemTableRep(comparator_, &arena_impl_)),
- flush_in_progress_(false),
- flush_completed_(false),
- file_number_(0),
- edit_(numlevel),
- first_seqno_(0),
- mem_next_logfile_number_(0),
- mem_logfile_number_(0),
- locks_(options.inplace_update_support
- ? options.inplace_update_num_locks
- : 0) { }
-
-MemTable::~MemTable() {
- assert(refs_ == 0);
-}
-
-size_t MemTable::ApproximateMemoryUsage() {
- return arena_impl_.ApproximateMemoryUsage() +
- table_->ApproximateMemoryUsage();
-}
-
-int MemTable::KeyComparator::operator()(const char* aptr, const char* bptr)
- const {
- // Internal keys are encoded as length-prefixed strings.
- Slice a = GetLengthPrefixedSlice(aptr);
- Slice b = GetLengthPrefixedSlice(bptr);
- return comparator.Compare(a, b);
-}
-
-Slice MemTableRep::UserKey(const char* key) const {
- Slice slice = GetLengthPrefixedSlice(key);
- return Slice(slice.data(), slice.size() - 8);
-}
-
-// Encode a suitable internal key target for "target" and return it.
-// Uses *scratch as scratch space, and the returned pointer will point
-// into this scratch space.
-static const char* EncodeKey(std::string* scratch, const Slice& target) {
- scratch->clear();
- PutVarint32(scratch, target.size());
- scratch->append(target.data(), target.size());
- return scratch->data();
-}
-
-class MemTableIterator: public Iterator {
- public:
- MemTableIterator(MemTableRep* table, const ReadOptions& options)
- : iter_() {
- if (options.prefix) {
- iter_ = table->GetPrefixIterator(*options.prefix);
- } else if (options.prefix_seek) {
- iter_ = table->GetDynamicPrefixIterator();
- } else {
- iter_ = table->GetIterator();
- }
- }
-
- virtual bool Valid() const { return iter_->Valid(); }
- virtual void Seek(const Slice& k) { iter_->Seek(EncodeKey(&tmp_, k)); }
- virtual void SeekToFirst() { iter_->SeekToFirst(); }
- virtual void SeekToLast() { iter_->SeekToLast(); }
- virtual void Next() { iter_->Next(); }
- virtual void Prev() { iter_->Prev(); }
- virtual Slice key() const {
- return GetLengthPrefixedSlice(iter_->key());
- }
- virtual Slice value() const {
- Slice key_slice = GetLengthPrefixedSlice(iter_->key());
- return GetLengthPrefixedSlice(key_slice.data() + key_slice.size());
- }
-
- virtual Status status() const { return Status::OK(); }
-
- private:
- std::shared_ptr<MemTableRep::Iterator> iter_;
- std::string tmp_; // For passing to EncodeKey
-
- // No copying allowed
- MemTableIterator(const MemTableIterator&);
- void operator=(const MemTableIterator&);
-};
-
-Iterator* MemTable::NewIterator(const ReadOptions& options) {
- return new MemTableIterator(table_.get(), options);
-}
-
-port::RWMutex* MemTable::GetLock(const Slice& key) {
- return &locks_[std::hash<Slice>()(key) % locks_.size()];
-}
-
-void MemTable::Add(SequenceNumber s, ValueType type,
- const Slice& key,
- const Slice& value) {
- // Format of an entry is concatenation of:
- // key_size : varint32 of internal_key.size()
- // key bytes : char[internal_key.size()]
- // value_size : varint32 of value.size()
- // value bytes : char[value.size()]
- size_t key_size = key.size();
- size_t val_size = value.size();
- size_t internal_key_size = key_size + 8;
- const size_t encoded_len =
- VarintLength(internal_key_size) + internal_key_size +
- VarintLength(val_size) + val_size;
- char* buf = arena_impl_.Allocate(encoded_len);
- char* p = EncodeVarint32(buf, internal_key_size);
- memcpy(p, key.data(), key_size);
- p += key_size;
- EncodeFixed64(p, (s << 8) | type);
- p += 8;
- p = EncodeVarint32(p, val_size);
- memcpy(p, value.data(), val_size);
- assert((p + val_size) - buf == (unsigned)encoded_len);
- table_->Insert(buf);
-
- // The first sequence number inserted into the memtable
- assert(first_seqno_ == 0 || s > first_seqno_);
- if (first_seqno_ == 0) {
- first_seqno_ = s;
- }
-}
-
-bool MemTable::Get(const LookupKey& key, std::string* value, Status* s,
- std::deque<std::string>* operands, const Options& options) {
- Slice memkey = key.memtable_key();
- std::shared_ptr<MemTableRep::Iterator> iter(
- table_->GetIterator(key.user_key()));
- iter->Seek(memkey.data());
-
- // It is the caller's responsibility to allocate/delete operands list
- assert(operands != nullptr);
-
- bool merge_in_progress = s->IsMergeInProgress();
- auto merge_operator = options.merge_operator.get();
- auto logger = options.info_log;
- std::string merge_result;
-
- for (; iter->Valid(); iter->Next()) {
- // entry format is:
- // klength varint32
- // userkey char[klength-8]
- // tag uint64
- // vlength varint32
- // value char[vlength]
- // Check that it belongs to same user key. We do not check the
- // sequence number since the Seek() call above should have skipped
- // all entries with overly large sequence numbers.
- const char* entry = iter->key();
- uint32_t key_length;
- const char* key_ptr = GetVarint32Ptr(entry, entry + 5, &key_length);
- if (comparator_.comparator.user_comparator()->Compare(
- Slice(key_ptr, key_length - 8), key.user_key()) == 0) {
- // Correct user key
- const uint64_t tag = DecodeFixed64(key_ptr + key_length - 8);
- switch (static_cast<ValueType>(tag & 0xff)) {
- case kTypeValue: {
- if (options.inplace_update_support) {
- GetLock(key.user_key())->ReadLock();
- }
- Slice v = GetLengthPrefixedSlice(key_ptr + key_length);
- *s = Status::OK();
- if (merge_in_progress) {
- assert(merge_operator);
- if (!merge_operator->FullMerge(key.user_key(), &v, *operands,
- value, logger.get())) {
- RecordTick(options.statistics, NUMBER_MERGE_FAILURES);
- *s = Status::Corruption("Error: Could not perform merge.");
- }
- } else {
- value->assign(v.data(), v.size());
- }
- if (options.inplace_update_support) {
- GetLock(key.user_key())->Unlock();
- }
- return true;
- }
- case kTypeDeletion: {
- if (merge_in_progress) {
- assert(merge_operator);
- *s = Status::OK();
- if (!merge_operator->FullMerge(key.user_key(), nullptr, *operands,
- value, logger.get())) {
- RecordTick(options.statistics, NUMBER_MERGE_FAILURES);
- *s = Status::Corruption("Error: Could not perform merge.");
- }
- } else {
- *s = Status::NotFound(Slice());
- }
- return true;
- }
- case kTypeMerge: {
- Slice v = GetLengthPrefixedSlice(key_ptr + key_length);
- merge_in_progress = true;
- operands->push_front(v.ToString());
- while(operands->size() >= 2) {
- // Attempt to associative merge. (Returns true if successful)
- if (merge_operator->PartialMerge(key.user_key(),
- Slice((*operands)[0]),
- Slice((*operands)[1]),
- &merge_result,
- logger.get())) {
- operands->pop_front();
- swap(operands->front(), merge_result);
- } else {
- // Stack them because user can't associative merge
- break;
- }
- }
- break;
- }
- case kTypeLogData:
- assert(false);
- break;
- }
- } else {
- // exit loop if user key does not match
- break;
- }
- }
-
- // No change to value, since we have not yet found a Put/Delete
-
- if (merge_in_progress) {
- *s = Status::MergeInProgress("");
- }
- return false;
-}
-
-bool MemTable::Update(SequenceNumber seq, ValueType type,
- const Slice& key,
- const Slice& value) {
- LookupKey lkey(key, seq);
- Slice memkey = lkey.memtable_key();
-
- std::shared_ptr<MemTableRep::Iterator> iter(
- table_.get()->GetIterator(lkey.user_key()));
- iter->Seek(memkey.data());
-
- if (iter->Valid()) {
- // entry format is:
- // klength varint32
- // userkey char[klength-8]
- // tag uint64
- // vlength varint32
- // value char[vlength]
- // Check that it belongs to same user key. We do not check the
- // sequence number since the Seek() call above should have skipped
- // all entries with overly large sequence numbers.
- const char* entry = iter->key();
- uint32_t key_length;
- const char* key_ptr = GetVarint32Ptr(entry, entry + 5, &key_length);
- if (comparator_.comparator.user_comparator()->Compare(
- Slice(key_ptr, key_length - 8), lkey.user_key()) == 0) {
- // Correct user key
- const uint64_t tag = DecodeFixed64(key_ptr + key_length - 8);
- switch (static_cast<ValueType>(tag & 0xff)) {
- case kTypeValue: {
- uint32_t vlength;
- GetVarint32Ptr(key_ptr + key_length,
- key_ptr + key_length+5, &vlength);
- // Update value, if newValue size <= curValue size
- if (value.size() <= vlength) {
- char* p = EncodeVarint32(const_cast<char*>(key_ptr) + key_length,
- value.size());
- WriteLock wl(GetLock(lkey.user_key()));
- memcpy(p, value.data(), value.size());
- assert(
- (p + value.size()) - entry ==
- (unsigned) (VarintLength(key_length) +
- key_length +
- VarintLength(value.size()) +
- value.size())
- );
- return true;
- }
- }
- default:
- // If the latest value is kTypeDeletion, kTypeMerge or kTypeLogData
- // then we probably don't have enough space to update in-place
- // Maybe do something later
- // Return false, and do normal Add()
- return false;
- }
- }
- }
-
- // Key doesn't exist
- return false;
-}
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <string>
-#include <memory>
-#include <deque>
-#include "db/dbformat.h"
-#include "db/skiplist.h"
-#include "db/version_set.h"
-#include "rocksdb/db.h"
-#include "rocksdb/memtablerep.h"
-#include "util/arena_impl.h"
-
-namespace rocksdb {
-
-class Mutex;
-class MemTableIterator;
-
-class MemTable {
- public:
- struct KeyComparator : public MemTableRep::KeyComparator {
- const InternalKeyComparator comparator;
- explicit KeyComparator(const InternalKeyComparator& c) : comparator(c) { }
- virtual int operator()(const char* a, const char* b) const;
- };
-
- // MemTables are reference counted. The initial reference count
- // is zero and the caller must call Ref() at least once.
- explicit MemTable(
- const InternalKeyComparator& comparator,
- std::shared_ptr<MemTableRepFactory> table_factory,
- int numlevel = 7,
- const Options& options = Options());
-
- // Increase reference count.
- void Ref() { ++refs_; }
-
- // Drop reference count. Delete if no more references exist.
- void Unref() {
- --refs_;
- assert(refs_ >= 0);
- if (refs_ <= 0) {
- delete this;
- }
- }
-
- // Returns an estimate of the number of bytes of data in use by this
- // data structure.
- //
- // REQUIRES: external synchronization to prevent simultaneous
- // operations on the same MemTable.
- size_t ApproximateMemoryUsage();
-
- // Return an iterator that yields the contents of the memtable.
- //
- // The caller must ensure that the underlying MemTable remains live
- // while the returned iterator is live. The keys returned by this
- // iterator are internal keys encoded by AppendInternalKey in the
- // db/dbformat.{h,cc} module.
- //
- // If options.prefix is supplied, it is passed to the underlying MemTableRep
- // as a hint that the iterator only need to support access to keys with that
- // specific prefix.
- // If options.prefix is not supplied and options.prefix_seek is set, the
- // iterator is not bound to a specific prefix. However, the semantics of
- // Seek is changed - the result might only include keys with the same prefix
- // as the seek-key.
- Iterator* NewIterator(const ReadOptions& options = ReadOptions());
-
- // Add an entry into memtable that maps key to value at the
- // specified sequence number and with the specified type.
- // Typically value will be empty if type==kTypeDeletion.
- void Add(SequenceNumber seq, ValueType type,
- const Slice& key,
- const Slice& value);
-
- // If memtable contains a value for key, store it in *value and return true.
- // If memtable contains a deletion for key, store a NotFound() error
- // in *status and return true.
- // If memtable contains Merge operation as the most recent entry for a key,
- // and the merge process does not stop (not reaching a value or delete),
- // prepend the current merge operand to *operands.
- // store MergeInProgress in s, and return false.
- // Else, return false.
- bool Get(const LookupKey& key, std::string* value, Status* s,
- std::deque<std::string>* operands, const Options& options);
-
- // Update the value and return status ok,
- // if key exists in current memtable
- // if new sizeof(new_value) <= sizeof(old_value) &&
- // old_value for that key is a put i.e. kTypeValue
- // else return false, and status - NotUpdatable()
- // else return false, and status - NotFound()
- bool Update(SequenceNumber seq, ValueType type,
- const Slice& key,
- const Slice& value);
-
- // Returns the edits area that is needed for flushing the memtable
- VersionEdit* GetEdits() { return &edit_; }
-
- // Returns the sequence number of the first element that was inserted
- // into the memtable
- SequenceNumber GetFirstSequenceNumber() { return first_seqno_; }
-
- // Returns the next active logfile number when this memtable is about to
- // be flushed to storage
- uint64_t GetNextLogNumber() { return mem_next_logfile_number_; }
-
- // Sets the next active logfile number when this memtable is about to
- // be flushed to storage
- void SetNextLogNumber(uint64_t num) { mem_next_logfile_number_ = num; }
-
- // Returns the logfile number that can be safely deleted when this
- // memstore is flushed to storage
- uint64_t GetLogNumber() { return mem_logfile_number_; }
-
- // Sets the logfile number that can be safely deleted when this
- // memstore is flushed to storage
- void SetLogNumber(uint64_t num) { mem_logfile_number_ = num; }
-
- // Notify the underlying storage that no more items will be added
- void MarkImmutable() { table_->MarkReadOnly(); }
-
- private:
- ~MemTable(); // Private since only Unref() should be used to delete it
- friend class MemTableIterator;
- friend class MemTableBackwardIterator;
- friend class MemTableList;
-
- KeyComparator comparator_;
- int refs_;
- ArenaImpl arena_impl_;
- shared_ptr<MemTableRep> table_;
-
- // These are used to manage memtable flushes to storage
- bool flush_in_progress_; // started the flush
- bool flush_completed_; // finished the flush
- uint64_t file_number_; // filled up after flush is complete
-
- // The udpates to be applied to the transaction log when this
- // memtable is flushed to storage.
- VersionEdit edit_;
-
- // The sequence number of the kv that was inserted first
- SequenceNumber first_seqno_;
-
- // The log files earlier than this number can be deleted.
- uint64_t mem_next_logfile_number_;
-
- // The log file that backs this memtable (to be deleted when
- // memtable flush is done)
- uint64_t mem_logfile_number_;
-
- // rw locks for inplace updates
- std::vector<port::RWMutex> locks_;
-
- // No copying allowed
- MemTable(const MemTable&);
- void operator=(const MemTable&);
-
- // Get the lock associated for the key
- port::RWMutex* GetLock(const Slice& key);
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "db/memtablelist.h"
-
-#include <string>
-#include "rocksdb/db.h"
-#include "db/memtable.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-class InternalKeyComparator;
-class Mutex;
-class MemTableListIterator;
-class VersionSet;
-
-using std::list;
-
-// Increase reference count on all underling memtables
-void MemTableList::RefAll() {
- for (auto &memtable : memlist_) {
- memtable->Ref();
- }
-}
-
-// Drop reference count on all underling memtables
-void MemTableList::UnrefAll() {
- for (auto &memtable : memlist_) {
- memtable->Unref();
- }
-}
-
-// Returns the total number of memtables in the list
-int MemTableList::size() {
- assert(num_flush_not_started_ <= size_);
- return size_;
-}
-
-// Returns true if there is at least one memtable on which flush has
-// not yet started.
-bool MemTableList::IsFlushPending(int min_write_buffer_number_to_merge) {
- if ((flush_requested_ && num_flush_not_started_ >= 1) ||
- (num_flush_not_started_ >= min_write_buffer_number_to_merge)) {
- assert(imm_flush_needed.NoBarrier_Load() != nullptr);
- return true;
- }
- return false;
-}
-
-// Returns the memtables that need to be flushed.
-void MemTableList::PickMemtablesToFlush(std::vector<MemTable*>* ret) {
- for (auto it = memlist_.rbegin(); it != memlist_.rend(); it++) {
- MemTable* m = *it;
- if (!m->flush_in_progress_) {
- assert(!m->flush_completed_);
- num_flush_not_started_--;
- if (num_flush_not_started_ == 0) {
- imm_flush_needed.Release_Store(nullptr);
- }
- m->flush_in_progress_ = true; // flushing will start very soon
- ret->push_back(m);
- }
- }
- flush_requested_ = false; // start-flush request is complete
-}
-
-// Record a successful flush in the manifest file
-Status MemTableList::InstallMemtableFlushResults(
- const std::vector<MemTable*> &mems,
- VersionSet* vset, Status flushStatus,
- port::Mutex* mu, Logger* info_log,
- uint64_t file_number,
- std::set<uint64_t>& pending_outputs) {
- mu->AssertHeld();
-
- // If the flush was not successful, then just reset state.
- // Maybe a suceeding attempt to flush will be successful.
- if (!flushStatus.ok()) {
- for (MemTable* m : mems) {
- assert(m->flush_in_progress_);
- assert(m->file_number_ == 0);
-
- m->flush_in_progress_ = false;
- m->flush_completed_ = false;
- m->edit_.Clear();
- num_flush_not_started_++;
- imm_flush_needed.Release_Store((void *)1);
- pending_outputs.erase(file_number);
- }
- return flushStatus;
- }
-
- // flush was sucessful
- for (size_t i = 0; i < mems.size(); ++i) {
- // All the edits are associated with the first memtable of this batch.
- assert(i == 0 || mems[i]->GetEdits()->NumEntries() == 0);
-
- mems[i]->flush_completed_ = true;
- mems[i]->file_number_ = file_number;
- }
-
- // if some other thread is already commiting, then return
- Status s;
- if (commit_in_progress_) {
- return s;
- }
-
- // Only a single thread can be executing this piece of code
- commit_in_progress_ = true;
-
- // scan all memtables from the earliest, and commit those
- // (in that order) that have finished flushing. Memetables
- // are always committed in the order that they were created.
- while (!memlist_.empty() && s.ok()) {
- MemTable* m = memlist_.back(); // get the last element
- if (!m->flush_completed_) {
- break;
- }
-
- Log(info_log,
- "Level-0 commit table #%lu started",
- (unsigned long)m->file_number_);
-
- // this can release and reacquire the mutex.
- s = vset->LogAndApply(&m->edit_, mu);
-
- // All the later memtables that have the same filenum
- // are part of the same batch. They can be committed now.
- uint64_t mem_id = 1; // how many memtables has been flushed.
- do {
- if (s.ok()) { // commit new state
- Log(info_log,
- "Level-0 commit table #%lu: memtable #%lu done",
- (unsigned long)m->file_number_,
- (unsigned long)mem_id);
- memlist_.remove(m);
- assert(m->file_number_ > 0);
-
- // pending_outputs can be cleared only after the newly created file
- // has been written to a committed version so that other concurrently
- // executing compaction threads do not mistakenly assume that this
- // file is not live.
- pending_outputs.erase(m->file_number_);
- m->Unref();
- size_--;
- } else {
- //commit failed. setup state so that we can flush again.
- Log(info_log,
- "Level-0 commit table #%lu: memtable #%lu failed",
- (unsigned long)m->file_number_,
- (unsigned long)mem_id);
- m->flush_completed_ = false;
- m->flush_in_progress_ = false;
- m->edit_.Clear();
- num_flush_not_started_++;
- pending_outputs.erase(m->file_number_);
- m->file_number_ = 0;
- imm_flush_needed.Release_Store((void *)1);
- s = Status::IOError("Unable to commit flushed memtable");
- }
- ++mem_id;
- } while (!memlist_.empty() && (m = memlist_.back()) &&
- m->file_number_ == file_number);
- }
- commit_in_progress_ = false;
- return s;
-}
-
-// New memtables are inserted at the front of the list.
-void MemTableList::Add(MemTable* m) {
- assert(size_ >= num_flush_not_started_);
- size_++;
- memlist_.push_front(m);
- m->MarkImmutable();
- num_flush_not_started_++;
- if (num_flush_not_started_ == 1) {
- imm_flush_needed.Release_Store((void *)1);
- }
-}
-
-// Returns an estimate of the number of bytes of data in use.
-size_t MemTableList::ApproximateMemoryUsage() {
- size_t size = 0;
- for (auto &memtable : memlist_) {
- size += memtable->ApproximateMemoryUsage();
- }
- return size;
-}
-
-// Search all the memtables starting from the most recent one.
-// Return the most recent value found, if any.
-// Operands stores the list of merge operations to apply, so far.
-bool MemTableList::Get(const LookupKey& key, std::string* value, Status* s,
- std::deque<std::string>* operands,
- const Options& options) {
- for (auto &memtable : memlist_) {
- if (memtable->Get(key, value, s, operands, options)) {
- return true;
- }
- }
- return false;
-}
-
-void MemTableList::GetMemTables(std::vector<MemTable*>* output) {
- for (auto &memtable : memlist_) {
- output->push_back(memtable);
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-
-#pragma once
-#include <string>
-#include <list>
-#include <deque>
-#include "rocksdb/db.h"
-#include "db/dbformat.h"
-#include "db/skiplist.h"
-#include "memtable.h"
-
-namespace rocksdb {
-
-class InternalKeyComparator;
-class Mutex;
-class MemTableListIterator;
-
-//
-// This class stores references to all the immutable memtables.
-// The memtables are flushed to L0 as soon as possible and in
-// any order. If there are more than one immutable memtable, their
-// flushes can occur concurrently. However, they are 'committed'
-// to the manifest in FIFO order to maintain correctness and
-// recoverability from a crash.
-//
-class MemTableList {
- public:
- // A list of memtables.
- MemTableList() : size_(0), num_flush_not_started_(0),
- commit_in_progress_(false),
- flush_requested_(false) {
- imm_flush_needed.Release_Store(nullptr);
- }
- ~MemTableList() {};
-
- // so that backgrund threads can detect non-nullptr pointer to
- // determine whether this is anything more to start flushing.
- port::AtomicPointer imm_flush_needed;
-
- // Increase reference count on all underling memtables
- void RefAll();
-
- // Drop reference count on all underling memtables
- void UnrefAll();
-
- // Returns the total number of memtables in the list
- int size();
-
- // Returns true if there is at least one memtable on which flush has
- // not yet started.
- bool IsFlushPending(int min_write_buffer_number_to_merge);
-
- // Returns the earliest memtables that needs to be flushed. The returned
- // memtables are guaranteed to be in the ascending order of created time.
- void PickMemtablesToFlush(std::vector<MemTable*>* mems);
-
- // Commit a successful flush in the manifest file
- Status InstallMemtableFlushResults(const std::vector<MemTable*> &m,
- VersionSet* vset, Status flushStatus,
- port::Mutex* mu, Logger* info_log,
- uint64_t file_number,
- std::set<uint64_t>& pending_outputs);
-
- // New memtables are inserted at the front of the list.
- // Takes ownership of the referenced held on *m by the caller of Add().
- void Add(MemTable* m);
-
- // Returns an estimate of the number of bytes of data in use.
- size_t ApproximateMemoryUsage();
-
- // Search all the memtables starting from the most recent one.
- // Return the most recent value found, if any.
- bool Get(const LookupKey& key, std::string* value, Status* s,
- std::deque<std::string>* operands, const Options& options);
-
- // Returns the list of underlying memtables.
- void GetMemTables(std::vector<MemTable*>* list);
-
- // Request a flush of all existing memtables to storage
- void FlushRequested() { flush_requested_ = true; }
-
- // Copying allowed
- // MemTableList(const MemTableList&);
- // void operator=(const MemTableList&);
-
- private:
- std::list<MemTable*> memlist_;
- int size_;
-
- // the number of elements that still need flushing
- int num_flush_not_started_;
-
- // committing in progress
- bool commit_in_progress_;
-
- // Requested a flush of all memtables to storage
- bool flush_requested_;
-
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "merge_helper.h"
-#include "db/dbformat.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/db.h"
-#include "rocksdb/merge_operator.h"
-#include <string>
-#include <stdio.h>
-
-namespace rocksdb {
-
-// PRE: iter points to the first merge type entry
-// POST: iter points to the first entry beyond the merge process (or the end)
-// keys_, operands_ are updated to reflect the merge result.
-// keys_ stores the list of keys encountered while merging.
-// operands_ stores the list of merge operands encountered while merging.
-// keys_[i] corresponds to operands_[i] for each i.
-void MergeHelper::MergeUntil(Iterator* iter, SequenceNumber stop_before,
- bool at_bottom, shared_ptr<Statistics> stats) {
- // Get a copy of the internal key, before it's invalidated by iter->Next()
- // Also maintain the list of merge operands seen.
- keys_.clear();
- operands_.clear();
- keys_.push_front(iter->key().ToString());
- operands_.push_front(iter->value().ToString());
-
- success_ = false; // Will become true if we hit Put/Delete or bottom
-
- // We need to parse the internal key again as the parsed key is
- // backed by the internal key!
- // Assume no internal key corruption as it has been successfully parsed
- // by the caller.
- // Invariant: keys_.back() will not change. Hence, orig_ikey is always valid.
- ParsedInternalKey orig_ikey;
- ParseInternalKey(keys_.back(), &orig_ikey);
-
- bool hit_the_next_user_key = false;
- ParsedInternalKey ikey;
- std::string merge_result; // Temporary value for merge results
- for (iter->Next(); iter->Valid(); iter->Next()) {
- assert(operands_.size() >= 1); // Should be invariants!
- assert(keys_.size() == operands_.size());
-
- if (!ParseInternalKey(iter->key(), &ikey)) {
- // stop at corrupted key
- if (assert_valid_internal_key_) {
- assert(!"corrupted internal key is not expected");
- }
- break;
- }
-
- if (user_comparator_->Compare(ikey.user_key, orig_ikey.user_key) != 0) {
- // hit a different user key, stop right here
- hit_the_next_user_key = true;
- break;
- }
-
- if (stop_before && ikey.sequence <= stop_before) {
- // hit an entry that's visible by the previous snapshot, can't touch that
- break;
- }
-
- // At this point we are guaranteed that we need to process this key.
-
- if (kTypeDeletion == ikey.type) {
- // hit a delete
- // => merge nullptr with operands_
- // => store result in operands_.back() (and update keys_.back())
- // => change the entry type to kTypeValue for keys_.back()
- // We are done! Return a success if the merge passes.
- success_ = user_merge_operator_->FullMerge(ikey.user_key, nullptr,
- operands_, &merge_result,
- logger_);
-
- // We store the result in keys_.back() and operands_.back()
- // if nothing went wrong (i.e.: no operand corruption on disk)
- if (success_) {
- std::string& key = keys_.back(); // The original key encountered
- orig_ikey.type = kTypeValue;
- UpdateInternalKey(&key[0], key.size(),
- orig_ikey.sequence, orig_ikey.type);
- swap(operands_.back(), merge_result);
- } else {
- RecordTick(stats, NUMBER_MERGE_FAILURES);
- }
-
- // move iter to the next entry (before doing anything else)
- iter->Next();
- return;
- }
-
- if (kTypeValue == ikey.type) {
- // hit a put
- // => merge the put value with operands_
- // => store result in operands_.back() (and update keys_.back())
- // => change the entry type to kTypeValue for keys_.back()
- // We are done! Success!
- const Slice value = iter->value();
- success_ = user_merge_operator_->FullMerge(ikey.user_key, &value,
- operands_, &merge_result,
- logger_);
-
- // We store the result in keys_.back() and operands_.back()
- // if nothing went wrong (i.e.: no operand corruption on disk)
- if (success_) {
- std::string& key = keys_.back(); // The original key encountered
- orig_ikey.type = kTypeValue;
- UpdateInternalKey(&key[0], key.size(),
- orig_ikey.sequence, orig_ikey.type);
- swap(operands_.back(), merge_result);
- } else {
- RecordTick(stats, NUMBER_MERGE_FAILURES);
- }
-
- // move iter to the next entry
- iter->Next();
- return;
- }
-
- if (kTypeMerge == ikey.type) {
- // hit a merge
- // => merge the operand into the front of the operands_ list
- // => use the user's associative merge function to determine how.
- // => then continue because we haven't yet seen a Put/Delete.
- assert(!operands_.empty()); // Should have at least one element in it
-
- keys_.push_front(iter->key().ToString());
- operands_.push_front(iter->value().ToString());
- while (operands_.size() >= 2) {
- // Returns false when the merge_operator can no longer process it
- if (user_merge_operator_->PartialMerge(ikey.user_key,
- Slice(operands_[0]),
- Slice(operands_[1]),
- &merge_result,
- logger_)) {
- // Merging of operands (associative merge) was successful.
- // Replace these frontmost two operands with the merge result
- keys_.pop_front();
- operands_.pop_front();
- swap(operands_.front(), merge_result);
- } else {
- // Merging of operands (associative merge) returned false.
- // The user merge_operator does not know how to merge these operands.
- // So we just stack them up until we find a Put/Delete or end of key.
- break;
- }
- }
- continue;
- }
- }
-
- // We are sure we have seen this key's entire history if we are at the
- // last level and exhausted all internal keys of this user key.
- // NOTE: !iter->Valid() does not necessarily mean we hit the
- // beginning of a user key, as versions of a user key might be
- // split into multiple files (even files on the same level)
- // and some files might not be included in the compaction/merge.
- //
- // There are also cases where we have seen the root of history of this
- // key without being sure of it. Then, we simply miss the opportunity
- // to combine the keys. Since VersionSet::SetupOtherInputs() always makes
- // sure that all merge-operands on the same level get compacted together,
- // this will simply lead to these merge operands moving to the next level.
- //
- // So, we only perform the following logic (to merge all operands together
- // without a Put/Delete) if we are certain that we have seen the end of key.
- bool surely_seen_the_beginning = hit_the_next_user_key && at_bottom;
- if (surely_seen_the_beginning) {
- // do a final merge with nullptr as the existing value and say
- // bye to the merge type (it's now converted to a Put)
- assert(kTypeMerge == orig_ikey.type);
- assert(operands_.size() >= 1);
- assert(operands_.size() == keys_.size());
- success_ = user_merge_operator_->FullMerge(orig_ikey.user_key, nullptr,
- operands_, &merge_result,
- logger_);
-
- if (success_) {
- std::string& key = keys_.back(); // The original key encountered
- orig_ikey.type = kTypeValue;
- UpdateInternalKey(&key[0], key.size(),
- orig_ikey.sequence, orig_ikey.type);
-
- // The final value() is always stored in operands_.back()
- swap(operands_.back(),merge_result);
- } else {
- RecordTick(stats, NUMBER_MERGE_FAILURES);
- // Do nothing if not success_. Leave keys() and operands() as they are.
- }
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#ifndef MERGE_HELPER_H
-#define MERGE_HELPER_H
-
-#include "db/dbformat.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/statistics.h"
-#include <string>
-#include <deque>
-
-namespace rocksdb {
-
-class Comparator;
-class Iterator;
-class Logger;
-class MergeOperator;
-
-class MergeHelper {
- public:
- MergeHelper(const Comparator* user_comparator,
- const MergeOperator* user_merge_operator,
- Logger* logger,
- bool assert_valid_internal_key)
- : user_comparator_(user_comparator),
- user_merge_operator_(user_merge_operator),
- logger_(logger),
- assert_valid_internal_key_(assert_valid_internal_key),
- keys_(),
- operands_(),
- success_(false) {}
-
- // Merge entries until we hit
- // - a corrupted key
- // - a Put/Delete,
- // - a different user key,
- // - a specific sequence number (snapshot boundary),
- // or - the end of iteration
- // iter: (IN) points to the first merge type entry
- // (OUT) points to the first entry not included in the merge process
- // stop_before: (IN) a sequence number that merge should not cross.
- // 0 means no restriction
- // at_bottom: (IN) true if the iterator covers the bottem level, which means
- // we could reach the start of the history of this user key.
- void MergeUntil(Iterator* iter, SequenceNumber stop_before = 0,
- bool at_bottom = false, shared_ptr<Statistics> stats=nullptr);
-
- // Query the merge result
- // These are valid until the next MergeUntil call
- // If the merging was successful:
- // - IsSuccess() will be true
- // - key() will have the latest sequence number of the merges.
- // The type will be Put or Merge. See IMPORTANT 1 note, below.
- // - value() will be the result of merging all the operands together
- // - The user should ignore keys() and values().
- //
- // IMPORTANT 1: the key type could change after the MergeUntil call.
- // Put/Delete + Merge + ... + Merge => Put
- // Merge + ... + Merge => Merge
- //
- // If the merge operator is not associative, and if a Put/Delete is not found
- // then the merging will be unsuccessful. In this case:
- // - IsSuccess() will be false
- // - keys() contains the list of internal keys seen in order of iteration.
- // - values() contains the list of values (merges) seen in the same order.
- // values() is parallel to keys() so that the first entry in
- // keys() is the key associated with the first entry in values()
- // and so on. These lists will be the same length.
- // All of these pairs will be merges over the same user key.
- // See IMPORTANT 2 note below.
- // - The user should ignore key() and value().
- //
- // IMPORTANT 2: The entries were traversed in order from BACK to FRONT.
- // So keys().back() was the first key seen by iterator.
- // TODO: Re-style this comment to be like the first one
- bool IsSuccess() { return success_; }
- Slice key() { assert(success_); return Slice(keys_.back()); }
- Slice value() { assert(success_); return Slice(operands_.back()); }
- const std::deque<std::string>& keys() { assert(!success_); return keys_; }
- const std::deque<std::string>& values() {
- assert(!success_); return operands_;
- }
-
- private:
- const Comparator* user_comparator_;
- const MergeOperator* user_merge_operator_;
- Logger* logger_;
- bool assert_valid_internal_key_; // enforce no internal key corruption?
-
- // the scratch area that holds the result of MergeUntil
- // valid up to the next MergeUntil call
- std::deque<std::string> keys_; // Keeps track of the sequence of keys seen
- std::deque<std::string> operands_; // Parallel with keys_; stores the values
- bool success_;
-};
-
-} // namespace rocksdb
-
-#endif
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-/**
- * Back-end implementation details specific to the Merge Operator.
- */
-
-#include "rocksdb/merge_operator.h"
-
-namespace rocksdb {
-
-// Given a "real" merge from the library, call the user's
-// associative merge function one-by-one on each of the operands.
-// NOTE: It is assumed that the client's merge-operator will handle any errors.
-bool AssociativeMergeOperator::FullMerge(
- const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operand_list,
- std::string* new_value,
- Logger* logger) const {
-
- // Simply loop through the operands
- Slice temp_existing;
- std::string temp_value;
- for (const auto& operand : operand_list) {
- Slice value(operand);
- if (!Merge(key, existing_value, value, &temp_value, logger)) {
- return false;
- }
- swap(temp_value, *new_value);
- temp_existing = Slice(*new_value);
- existing_value = &temp_existing;
- }
-
- // The result will be in *new_value. All merges succeeded.
- return true;
-}
-
-// Call the user defined simple merge on the operands;
-// NOTE: It is assumed that the client's merge-operator will handle any errors.
-bool AssociativeMergeOperator::PartialMerge(
- const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const {
-
- return Merge(key, &left_operand, right_operand, new_value, logger);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <assert.h>
-#include <memory>
-#include <iostream>
-
-#include "rocksdb/cache.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/merge_operator.h"
-#include "db/dbformat.h"
-#include "db/db_impl.h"
-#include "utilities/merge_operators.h"
-#include "util/testharness.h"
-#include "utilities/utility_db.h"
-
-using namespace std;
-using namespace rocksdb;
-
-
-std::shared_ptr<DB> OpenDb(const string& dbname, const bool ttl = false) {
- DB* db;
- StackableDB* sdb;
- Options options;
- options.create_if_missing = true;
- options.merge_operator = MergeOperators::CreateUInt64AddOperator();
- Status s;
- DestroyDB(dbname, Options());
- if (ttl) {
- cout << "Opening database with TTL\n";
- s = UtilityDB::OpenTtlDB(options, dbname, &sdb);
- db = sdb;
- } else {
- s = DB::Open(options, dbname, &db);
- }
- if (!s.ok()) {
- cerr << s.ToString() << endl;
- assert(false);
- }
- return std::shared_ptr<DB>(db);
-}
-
-// Imagine we are maintaining a set of uint64 counters.
-// Each counter has a distinct name. And we would like
-// to support four high level operations:
-// set, add, get and remove
-// This is a quick implementation without a Merge operation.
-class Counters {
-
- protected:
- std::shared_ptr<DB> db_;
-
- WriteOptions put_option_;
- ReadOptions get_option_;
- WriteOptions delete_option_;
-
- uint64_t default_;
-
- public:
- explicit Counters(std::shared_ptr<DB> db, uint64_t defaultCount = 0)
- : db_(db),
- put_option_(),
- get_option_(),
- delete_option_(),
- default_(defaultCount) {
- assert(db_);
- }
-
- virtual ~Counters() {}
-
- // public interface of Counters.
- // All four functions return false
- // if the underlying level db operation failed.
-
- // mapped to a levedb Put
- bool set(const string& key, uint64_t value) {
- // just treat the internal rep of int64 as the string
- Slice slice((char *)&value, sizeof(value));
- auto s = db_->Put(put_option_, key, slice);
-
- if (s.ok()) {
- return true;
- } else {
- cerr << s.ToString() << endl;
- return false;
- }
- }
-
- // mapped to a rocksdb Delete
- bool remove(const string& key) {
- auto s = db_->Delete(delete_option_, key);
-
- if (s.ok()) {
- return true;
- } else {
- cerr << s.ToString() << std::endl;
- return false;
- }
- }
-
- // mapped to a rocksdb Get
- bool get(const string& key, uint64_t *value) {
- string str;
- auto s = db_->Get(get_option_, key, &str);
-
- if (s.IsNotFound()) {
- // return default value if not found;
- *value = default_;
- return true;
- } else if (s.ok()) {
- // deserialization
- if (str.size() != sizeof(uint64_t)) {
- cerr << "value corruption\n";
- return false;
- }
- *value = DecodeFixed64(&str[0]);
- return true;
- } else {
- cerr << s.ToString() << std::endl;
- return false;
- }
- }
-
- // 'add' is implemented as get -> modify -> set
- // An alternative is a single merge operation, see MergeBasedCounters
- virtual bool add(const string& key, uint64_t value) {
- uint64_t base = default_;
- return get(key, &base) && set(key, base + value);
- }
-
-
- // convenience functions for testing
- void assert_set(const string& key, uint64_t value) {
- assert(set(key, value));
- }
-
- void assert_remove(const string& key) {
- assert(remove(key));
- }
-
- uint64_t assert_get(const string& key) {
- uint64_t value = default_;
- assert(get(key, &value));
- return value;
- }
-
- void assert_add(const string& key, uint64_t value) {
- assert(add(key, value));
- }
-};
-
-// Implement 'add' directly with the new Merge operation
-class MergeBasedCounters : public Counters {
- private:
- WriteOptions merge_option_; // for merge
-
- public:
- explicit MergeBasedCounters(std::shared_ptr<DB> db, uint64_t defaultCount = 0)
- : Counters(db, defaultCount),
- merge_option_() {
- }
-
- // mapped to a rocksdb Merge operation
- virtual bool add(const string& key, uint64_t value) override {
- char encoded[sizeof(uint64_t)];
- EncodeFixed64(encoded, value);
- Slice slice(encoded, sizeof(uint64_t));
- auto s = db_->Merge(merge_option_, key, slice);
-
- if (s.ok()) {
- return true;
- } else {
- cerr << s.ToString() << endl;
- return false;
- }
- }
-};
-
-void dumpDb(DB* db) {
- auto it = unique_ptr<Iterator>(db->NewIterator(ReadOptions()));
- for (it->SeekToFirst(); it->Valid(); it->Next()) {
- uint64_t value = DecodeFixed64(it->value().data());
- cout << it->key().ToString() << ": " << value << endl;
- }
- assert(it->status().ok()); // Check for any errors found during the scan
-}
-
-void testCounters(Counters& counters, DB* db, bool test_compaction) {
-
- FlushOptions o;
- o.wait = true;
-
- counters.assert_set("a", 1);
-
- if (test_compaction) db->Flush(o);
-
- assert(counters.assert_get("a") == 1);
-
- counters.assert_remove("b");
-
- // defaut value is 0 if non-existent
- assert(counters.assert_get("b") == 0);
-
- counters.assert_add("a", 2);
-
- if (test_compaction) db->Flush(o);
-
- // 1+2 = 3
- assert(counters.assert_get("a")== 3);
-
- dumpDb(db);
-
- std::cout << "1\n";
-
- // 1+...+49 = ?
- uint64_t sum = 0;
- for (int i = 1; i < 50; i++) {
- counters.assert_add("b", i);
- sum += i;
- }
- assert(counters.assert_get("b") == sum);
-
- std::cout << "2\n";
- dumpDb(db);
-
- std::cout << "3\n";
-
- if (test_compaction) {
- db->Flush(o);
-
- cout << "Compaction started ...\n";
- db->CompactRange(nullptr, nullptr);
- cout << "Compaction ended\n";
-
- dumpDb(db);
-
- assert(counters.assert_get("a")== 3);
- assert(counters.assert_get("b") == sum);
- }
-}
-
-void runTest(int argc, const string& dbname, const bool use_ttl = false) {
- auto db = OpenDb(dbname, use_ttl);
-
- {
- cout << "Test read-modify-write counters... \n";
- Counters counters(db, 0);
- testCounters(counters, db.get(), true);
- }
-
- bool compact = false;
- if (argc > 1) {
- compact = true;
- cout << "Turn on Compaction\n";
- }
-
- {
- cout << "Test merge-based counters... \n";
- MergeBasedCounters counters(db, 0);
- testCounters(counters, db.get(), compact);
- }
-
- DestroyDB(dbname, Options());
-}
-
-int main(int argc, char *argv[]) {
- //TODO: Make this test like a general rocksdb unit-test
- runTest(argc, test::TmpDir() + "/merge_testdb");
- runTest(argc, test::TmpDir() + "/merge_testdbttl", true); // Run test on TTL database
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <algorithm>
-#include <iostream>
-#include <vector>
-#include "/usr/include/valgrind/callgrind.h"
-
-#include "rocksdb/db.h"
-#include "rocksdb/perf_context.h"
-#include "util/histogram.h"
-#include "util/stop_watch.h"
-#include "util/testharness.h"
-
-
-bool FLAGS_random_key = false;
-bool FLAGS_use_set_based_memetable = false;
-int FLAGS_total_keys = 100;
-int FLAGS_write_buffer_size = 1000000000;
-int FLAGS_max_write_buffer_number = 8;
-int FLAGS_min_write_buffer_number_to_merge = 7;
-
-// Path to the database on file system
-const std::string kDbName = rocksdb::test::TmpDir() + "/perf_context_test";
-
-namespace rocksdb {
-
-std::shared_ptr<DB> OpenDb() {
- DB* db;
- Options options;
- options.create_if_missing = true;
- options.write_buffer_size = FLAGS_write_buffer_size;
- options.max_write_buffer_number = FLAGS_max_write_buffer_number;
- options.min_write_buffer_number_to_merge =
- FLAGS_min_write_buffer_number_to_merge;
-
- if (FLAGS_use_set_based_memetable) {
- auto prefix_extractor = rocksdb::NewFixedPrefixTransform(0);
- options.memtable_factory =
- std::make_shared<rocksdb::PrefixHashRepFactory>(prefix_extractor);
- }
-
- Status s = DB::Open(options, kDbName, &db);
- ASSERT_OK(s);
- return std::shared_ptr<DB>(db);
-}
-
-class PerfContextTest { };
-
-TEST(PerfContextTest, SeekIntoDeletion) {
- DestroyDB(kDbName, Options());
- auto db = OpenDb();
- WriteOptions write_options;
- ReadOptions read_options;
-
- for (int i = 0; i < FLAGS_total_keys; ++i) {
- std::string key = "k" + std::to_string(i);
- std::string value = "v" + std::to_string(i);
-
- db->Put(write_options, key, value);
- }
-
- for (int i = 0; i < FLAGS_total_keys -1 ; ++i) {
- std::string key = "k" + std::to_string(i);
- db->Delete(write_options, key);
- }
-
- HistogramImpl hist_get;
- HistogramImpl hist_get_time;
- for (int i = 0; i < FLAGS_total_keys - 1; ++i) {
- std::string key = "k" + std::to_string(i);
- std::string value;
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- auto status = db->Get(read_options, key, &value);
- auto elapsed_nanos = timer.ElapsedNanos();
- ASSERT_TRUE(status.IsNotFound());
- hist_get.Add(perf_context.user_key_comparison_count);
- hist_get_time.Add(elapsed_nanos);
- }
-
- std::cout << "Get uesr key comparison: \n" << hist_get.ToString()
- << "Get time: \n" << hist_get_time.ToString();
-
- HistogramImpl hist_seek_to_first;
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- iter->SeekToFirst();
- hist_seek_to_first.Add(perf_context.user_key_comparison_count);
- auto elapsed_nanos = timer.ElapsedNanos();
-
- std::cout << "SeekToFirst uesr key comparison: \n" << hist_seek_to_first.ToString()
- << "ikey skipped: " << perf_context.internal_key_skipped_count << "\n"
- << "idelete skipped: " << perf_context.internal_delete_skipped_count << "\n"
- << "elapsed: " << elapsed_nanos << "\n";
-
- HistogramImpl hist_seek;
- for (int i = 0; i < FLAGS_total_keys; ++i) {
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
- std::string key = "k" + std::to_string(i);
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- iter->Seek(key);
- auto elapsed_nanos = timer.ElapsedNanos();
- hist_seek.Add(perf_context.user_key_comparison_count);
- std::cout << "seek cmp: " << perf_context.user_key_comparison_count
- << " ikey skipped " << perf_context.internal_key_skipped_count
- << " idelete skipped " << perf_context.internal_delete_skipped_count
- << " elapsed: " << elapsed_nanos << "ns\n";
-
- perf_context.Reset();
- ASSERT_TRUE(iter->Valid());
- StopWatchNano timer2(Env::Default(), true);
- iter->Next();
- auto elapsed_nanos2 = timer2.ElapsedNanos();
- std::cout << "next cmp: " << perf_context.user_key_comparison_count
- << "elapsed: " << elapsed_nanos2 << "ns\n";
- }
-
- std::cout << "Seek uesr key comparison: \n" << hist_seek.ToString();
-}
-
-TEST(PerfContextTest, StopWatchNanoOverhead) {
- // profile the timer cost by itself!
- const int kTotalIterations = 1000000;
- std::vector<uint64_t> timings(kTotalIterations);
-
- StopWatchNano timer(Env::Default(), true);
- for (auto& timing : timings) {
- timing = timer.ElapsedNanos(true /* reset */);
- }
-
- HistogramImpl histogram;
- for (const auto timing : timings) {
- histogram.Add(timing);
- }
-
- std::cout << histogram.ToString();
-}
-
-TEST(PerfContextTest, StopWatchOverhead) {
- // profile the timer cost by itself!
- const int kTotalIterations = 1000000;
- std::vector<uint64_t> timings(kTotalIterations);
-
- StopWatch timer(Env::Default());
- for (auto& timing : timings) {
- timing = timer.ElapsedMicros();
- }
-
- HistogramImpl histogram;
- uint64_t prev_timing = 0;
- for (const auto timing : timings) {
- histogram.Add(timing - prev_timing);
- prev_timing = timing;
- }
-
- std::cout << histogram.ToString();
-}
-
-void ProfileKeyComparison() {
- DestroyDB(kDbName, Options()); // Start this test with a fresh DB
-
- auto db = OpenDb();
-
- WriteOptions write_options;
- ReadOptions read_options;
-
- HistogramImpl hist_put;
- HistogramImpl hist_get;
-
- std::cout << "Inserting " << FLAGS_total_keys << " key/value pairs\n...\n";
-
- std::vector<int> keys;
- for (int i = 0; i < FLAGS_total_keys; ++i) {
- keys.push_back(i);
- }
-
- if (FLAGS_random_key) {
- std::random_shuffle(keys.begin(), keys.end());
- }
-
- for (const int i : keys) {
- std::string key = "k" + std::to_string(i);
- std::string value = "v" + std::to_string(i);
-
- perf_context.Reset();
- db->Put(write_options, key, value);
- hist_put.Add(perf_context.user_key_comparison_count);
-
- perf_context.Reset();
- db->Get(read_options, key, &value);
- hist_get.Add(perf_context.user_key_comparison_count);
- }
-
- std::cout << "Put uesr key comparison: \n" << hist_put.ToString()
- << "Get uesr key comparison: \n" << hist_get.ToString();
-
-}
-
-TEST(PerfContextTest, KeyComparisonCount) {
- SetPerfLevel(kEnableCount);
- ProfileKeyComparison();
-
- SetPerfLevel(kDisable);
- ProfileKeyComparison();
-
- SetPerfLevel(kEnableTime);
- ProfileKeyComparison();
-}
-
-// make perf_context_test
-// export ROCKSDB_TESTS=PerfContextTest.SeekKeyComparison
-// For one memtable:
-// ./perf_context_test --write_buffer_size=500000 --total_keys=10000
-// For two memtables:
-// ./perf_context_test --write_buffer_size=250000 --total_keys=10000
-// Specify --random_key=1 to shuffle the key before insertion
-// Results show that, for sequential insertion, worst-case Seek Key comparison
-// is close to the total number of keys (linear), when there is only one
-// memtable. When there are two memtables, even the avg Seek Key comparison
-// starts to become linear to the input size.
-
-TEST(PerfContextTest, SeekKeyComparison) {
- DestroyDB(kDbName, Options());
- auto db = OpenDb();
- WriteOptions write_options;
- ReadOptions read_options;
-
- std::cout << "Inserting " << FLAGS_total_keys << " key/value pairs\n...\n";
-
- std::vector<int> keys;
- for (int i = 0; i < FLAGS_total_keys; ++i) {
- keys.push_back(i);
- }
-
- if (FLAGS_random_key) {
- std::random_shuffle(keys.begin(), keys.end());
- }
-
- HistogramImpl hist_put_time;
- HistogramImpl hist_wal_time;
- HistogramImpl hist_time_diff;
-
- SetPerfLevel(kEnableTime);
- StopWatchNano timer(Env::Default());
- for (const int i : keys) {
- std::string key = "k" + std::to_string(i);
- std::string value = "v" + std::to_string(i);
-
- perf_context.Reset();
- timer.Start();
- db->Put(write_options, key, value);
- auto put_time = timer.ElapsedNanos();
- hist_put_time.Add(put_time);
- hist_wal_time.Add(perf_context.wal_write_time);
- hist_time_diff.Add(put_time - perf_context.wal_write_time);
- }
-
- std::cout << "Put time:\n" << hist_put_time.ToString()
- << "WAL time:\n" << hist_wal_time.ToString()
- << "time diff:\n" << hist_time_diff.ToString();
-
- HistogramImpl hist_seek;
- HistogramImpl hist_next;
-
- for (int i = 0; i < FLAGS_total_keys; ++i) {
- std::string key = "k" + std::to_string(i);
- std::string value = "v" + std::to_string(i);
-
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
- perf_context.Reset();
- iter->Seek(key);
- ASSERT_TRUE(iter->Valid());
- ASSERT_EQ(iter->value().ToString(), value);
- hist_seek.Add(perf_context.user_key_comparison_count);
- }
-
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
- for (iter->SeekToFirst(); iter->Valid();) {
- perf_context.Reset();
- iter->Next();
- hist_next.Add(perf_context.user_key_comparison_count);
- }
-
- std::cout << "Seek:\n" << hist_seek.ToString()
- << "Next:\n" << hist_next.ToString();
-}
-
-}
-
-int main(int argc, char** argv) {
-
- for (int i = 1; i < argc; i++) {
- int n;
- char junk;
-
- if (sscanf(argv[i], "--write_buffer_size=%d%c", &n, &junk) == 1) {
- FLAGS_write_buffer_size = n;
- }
-
- if (sscanf(argv[i], "--total_keys=%d%c", &n, &junk) == 1) {
- FLAGS_total_keys = n;
- }
-
- if (sscanf(argv[i], "--random_key=%d%c", &n, &junk) == 1 &&
- (n == 0 || n == 1)) {
- FLAGS_random_key = n;
- }
-
- if (sscanf(argv[i], "--use_set_based_memetable=%d%c", &n, &junk) == 1 &&
- (n == 0 || n == 1)) {
- FLAGS_use_set_based_memetable = n;
- }
-
- }
-
- std::cout << kDbName << "\n";
-
- rocksdb::test::RunAllTests();
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Wrap an underlying iterator, but exclude any results not starting
-// with a given prefix. Seeking to keys not beginning with the prefix
-// is invalid, and SeekToLast is not implemented (that would be
-// non-trivial), but otherwise this iterator will behave just like the
-// underlying iterator would if there happened to be no non-matching
-// keys in the dataset.
-
-#pragma once
-#include "rocksdb/iterator.h"
-
-namespace rocksdb {
-
-class PrefixFilterIterator : public Iterator {
- private:
- Iterator* iter_;
- const Slice &prefix_;
- const SliceTransform *prefix_extractor_;
- Status status_;
-
- public:
- PrefixFilterIterator(Iterator* iter,
- const Slice &prefix,
- const SliceTransform* prefix_extractor)
- : iter_(iter), prefix_(prefix),
- prefix_extractor_(prefix_extractor),
- status_(Status::OK()) {
- if (prefix_extractor == nullptr) {
- status_ = Status::InvalidArgument("A prefix filter may not be used "
- "unless a function is also defined "
- "for extracting prefixes");
- } else if (!prefix_extractor_->InRange(prefix)) {
- status_ = Status::InvalidArgument("Must provide a slice for prefix which"
- "is a prefix for some key");
- }
- }
- ~PrefixFilterIterator() {
- delete iter_;
- }
- Slice key() const { return iter_->key(); }
- Slice value() const { return iter_->value(); }
- Status status() const {
- if (!status_.ok()) {
- return status_;
- }
- return iter_->status();
- }
- void Next() { iter_->Next(); }
- void Prev() { iter_->Prev(); }
- void Seek(const Slice& k) {
- if (prefix_extractor_->Transform(k) == prefix_) {
- iter_->Seek(k);
- } else {
- status_ = Status::InvalidArgument("Seek must begin with target prefix");
- }
- }
- void SeekToFirst() {
- Seek(prefix_);
- }
- void SeekToLast() {
- status_ = Status::NotSupported("SeekToLast is incompatible with prefixes");
- }
- bool Valid() const {
- return (status_.ok() && iter_->Valid() &&
- prefix_extractor_->Transform(iter_->key()) == prefix_);
- }
-};
-
-} // namespace rocksdb
+++ /dev/null
-#include <algorithm>
-#include <iostream>
-#include <vector>
-
-#include <gflags/gflags.h>
-#include "rocksdb/comparator.h"
-#include "rocksdb/db.h"
-#include "rocksdb/perf_context.h"
-#include "util/histogram.h"
-#include "util/stop_watch.h"
-#include "util/testharness.h"
-
-DEFINE_bool(use_prefix_hash_memtable, true, "");
-DEFINE_bool(use_nolock_version, true, "");
-DEFINE_bool(trigger_deadlock, false,
- "issue delete in range scan to trigger PrefixHashMap deadlock");
-DEFINE_uint64(bucket_count, 100000, "number of buckets");
-DEFINE_uint64(num_locks, 10001, "number of locks");
-DEFINE_bool(random_prefix, false, "randomize prefix");
-DEFINE_uint64(total_prefixes, 1000, "total number of prefixes");
-DEFINE_uint64(items_per_prefix, 10, "total number of values per prefix");
-DEFINE_int64(write_buffer_size, 1000000000, "");
-DEFINE_int64(max_write_buffer_number, 8, "");
-DEFINE_int64(min_write_buffer_number_to_merge, 7, "");
-
-// Path to the database on file system
-const std::string kDbName = rocksdb::test::TmpDir() + "/prefix_test";
-
-namespace rocksdb {
-
-struct TestKey {
- uint64_t prefix;
- uint64_t sorted;
-
- TestKey(uint64_t prefix, uint64_t sorted) : prefix(prefix), sorted(sorted) {}
-};
-
-// return a slice backed by test_key
-inline Slice TestKeyToSlice(const TestKey& test_key) {
- return Slice((const char*)&test_key, sizeof(test_key));
-}
-
-inline const TestKey* SliceToTestKey(const Slice& slice) {
- assert(slice.size() == sizeof(TestKey));
- return (const TestKey*)slice.data();
-}
-
-class TestKeyComparator : public Comparator {
- public:
- virtual int Compare(const Slice& a, const Slice& b) const {
- const TestKey* key_a = SliceToTestKey(a);
- const TestKey* key_b = SliceToTestKey(b);
- if (key_a->prefix != key_b->prefix) {
- if (key_a->prefix < key_b->prefix) return -1;
- if (key_a->prefix > key_b->prefix) return 1;
- assert(false);
- } else {
- if (key_a->sorted < key_b->sorted) return -1;
- if (key_a->sorted > key_b->sorted) return 1;
- if (key_a->sorted == key_b->sorted) return 0;
- assert(false);
- }
- assert(false);
- return 0;
- }
-
- virtual const char* Name() const override {
- return "TestKeyComparator";
- }
-
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
- }
-
- virtual void FindShortSuccessor(std::string* key) const {}
-
-};
-
-class PrefixTest {
- public:
- std::shared_ptr<DB> OpenDb() {
- DB* db;
-
- options.create_if_missing = true;
- options.write_buffer_size = FLAGS_write_buffer_size;
- options.max_write_buffer_number = FLAGS_max_write_buffer_number;
- options.min_write_buffer_number_to_merge =
- FLAGS_min_write_buffer_number_to_merge;
-
- options.comparator = new TestKeyComparator();
- if (FLAGS_use_prefix_hash_memtable) {
- auto prefix_extractor = NewFixedPrefixTransform(8);
- options.prefix_extractor = prefix_extractor;
- if (FLAGS_use_nolock_version) {
- options.memtable_factory.reset(NewHashSkipListRepFactory(
- prefix_extractor, FLAGS_bucket_count));
- } else {
- options.memtable_factory =
- std::make_shared<rocksdb::PrefixHashRepFactory>(
- prefix_extractor, FLAGS_bucket_count, FLAGS_num_locks);
- }
- }
-
- Status s = DB::Open(options, kDbName, &db);
- ASSERT_OK(s);
- return std::shared_ptr<DB>(db);
- }
- ~PrefixTest() {
- delete options.comparator;
- }
- protected:
- Options options;
-};
-
-TEST(PrefixTest, DynamicPrefixIterator) {
-
- DestroyDB(kDbName, Options());
- auto db = OpenDb();
- WriteOptions write_options;
- ReadOptions read_options;
-
- std::vector<uint64_t> prefixes;
- for (uint64_t i = 0; i < FLAGS_total_prefixes; ++i) {
- prefixes.push_back(i);
- }
-
- if (FLAGS_random_prefix) {
- std::random_shuffle(prefixes.begin(), prefixes.end());
- }
-
- // insert x random prefix, each with y continuous element.
- for (auto prefix : prefixes) {
- for (uint64_t sorted = 0; sorted < FLAGS_items_per_prefix; sorted++) {
- TestKey test_key(prefix, sorted);
-
- Slice key = TestKeyToSlice(test_key);
- std::string value = "v" + std::to_string(sorted);
-
- ASSERT_OK(db->Put(write_options, key, value));
- }
- }
-
- // test seek existing keys
- HistogramImpl hist_seek_time;
- HistogramImpl hist_seek_comparison;
-
- if (FLAGS_use_prefix_hash_memtable) {
- read_options.prefix_seek = true;
- }
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
-
- for (auto prefix : prefixes) {
- TestKey test_key(prefix, FLAGS_items_per_prefix / 2);
- Slice key = TestKeyToSlice(test_key);
- std::string value = "v" + std::to_string(0);
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- uint64_t total_keys = 0;
- for (iter->Seek(key); iter->Valid(); iter->Next()) {
- if (FLAGS_trigger_deadlock) {
- std::cout << "Behold the deadlock!\n";
- db->Delete(write_options, iter->key());
- }
- auto test_key = SliceToTestKey(iter->key());
- if (test_key->prefix != prefix) break;
- total_keys++;
- }
- hist_seek_time.Add(timer.ElapsedNanos());
- hist_seek_comparison.Add(perf_context.user_key_comparison_count);
- ASSERT_EQ(total_keys, FLAGS_items_per_prefix - FLAGS_items_per_prefix/2);
- }
-
- std::cout << "Seek key comparison: \n"
- << hist_seek_comparison.ToString()
- << "Seek time: \n"
- << hist_seek_time.ToString();
-
- // test non-existing keys
- HistogramImpl hist_no_seek_time;
- HistogramImpl hist_no_seek_comparison;
-
- for (auto prefix = FLAGS_total_prefixes;
- prefix < FLAGS_total_prefixes + 100;
- prefix++) {
- TestKey test_key(prefix, 0);
- Slice key = TestKeyToSlice(test_key);
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- iter->Seek(key);
- hist_no_seek_time.Add(timer.ElapsedNanos());
- hist_no_seek_comparison.Add(perf_context.user_key_comparison_count);
- ASSERT_TRUE(!iter->Valid());
- }
-
- std::cout << "non-existing Seek key comparison: \n"
- << hist_no_seek_comparison.ToString()
- << "non-existing Seek time: \n"
- << hist_no_seek_time.ToString();
-}
-
-TEST(PrefixTest, PrefixHash) {
-
- DestroyDB(kDbName, Options());
- auto db = OpenDb();
- WriteOptions write_options;
- ReadOptions read_options;
-
- std::vector<uint64_t> prefixes;
- for (uint64_t i = 0; i < FLAGS_total_prefixes; ++i) {
- prefixes.push_back(i);
- }
-
- if (FLAGS_random_prefix) {
- std::random_shuffle(prefixes.begin(), prefixes.end());
- }
-
- // insert x random prefix, each with y continuous element.
- HistogramImpl hist_put_time;
- HistogramImpl hist_put_comparison;
-
- for (auto prefix : prefixes) {
- for (uint64_t sorted = 0; sorted < FLAGS_items_per_prefix; sorted++) {
- TestKey test_key(prefix, sorted);
-
- Slice key = TestKeyToSlice(test_key);
- std::string value = "v" + std::to_string(sorted);
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- ASSERT_OK(db->Put(write_options, key, value));
- hist_put_time.Add(timer.ElapsedNanos());
- hist_put_comparison.Add(perf_context.user_key_comparison_count);
- }
- }
-
- std::cout << "Put key comparison: \n" << hist_put_comparison.ToString()
- << "Put time: \n" << hist_put_time.ToString();
-
-
- // test seek existing keys
- HistogramImpl hist_seek_time;
- HistogramImpl hist_seek_comparison;
-
- for (auto prefix : prefixes) {
- TestKey test_key(prefix, 0);
- Slice key = TestKeyToSlice(test_key);
- std::string value = "v" + std::to_string(0);
-
- Slice key_prefix;
- if (FLAGS_use_prefix_hash_memtable) {
- key_prefix = options.prefix_extractor->Transform(key);
- read_options.prefix = &key_prefix;
- }
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- uint64_t total_keys = 0;
- for (iter->Seek(key); iter->Valid(); iter->Next()) {
- if (FLAGS_trigger_deadlock) {
- std::cout << "Behold the deadlock!\n";
- db->Delete(write_options, iter->key());
- }
- auto test_key = SliceToTestKey(iter->key());
- if (test_key->prefix != prefix) break;
- total_keys++;
- }
- hist_seek_time.Add(timer.ElapsedNanos());
- hist_seek_comparison.Add(perf_context.user_key_comparison_count);
- ASSERT_EQ(total_keys, FLAGS_items_per_prefix);
- }
-
- std::cout << "Seek key comparison: \n"
- << hist_seek_comparison.ToString()
- << "Seek time: \n"
- << hist_seek_time.ToString();
-
- // test non-existing keys
- HistogramImpl hist_no_seek_time;
- HistogramImpl hist_no_seek_comparison;
-
- for (auto prefix = FLAGS_total_prefixes;
- prefix < FLAGS_total_prefixes + 100;
- prefix++) {
- TestKey test_key(prefix, 0);
- Slice key = TestKeyToSlice(test_key);
-
- if (FLAGS_use_prefix_hash_memtable) {
- Slice key_prefix = options.prefix_extractor->Transform(key);
- read_options.prefix = &key_prefix;
- }
- std::unique_ptr<Iterator> iter(db->NewIterator(read_options));
-
- perf_context.Reset();
- StopWatchNano timer(Env::Default(), true);
- iter->Seek(key);
- hist_no_seek_time.Add(timer.ElapsedNanos());
- hist_no_seek_comparison.Add(perf_context.user_key_comparison_count);
- ASSERT_TRUE(!iter->Valid());
- }
-
- std::cout << "non-existing Seek key comparison: \n"
- << hist_no_seek_comparison.ToString()
- << "non-existing Seek time: \n"
- << hist_no_seek_time.ToString();
-}
-
-}
-
-int main(int argc, char** argv) {
- google::ParseCommandLineFlags(&argc, &argv, true);
- std::cout << kDbName << "\n";
-
- rocksdb::test::RunAllTests();
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// We recover the contents of the descriptor from the other files we find.
-// (1) Any log files are first converted to tables
-// (2) We scan every table to compute
-// (a) smallest/largest for the table
-// (b) largest sequence number in the table
-// (3) We generate descriptor contents:
-// - log number is set to zero
-// - next-file-number is set to 1 + largest file number we found
-// - last-sequence-number is set to largest sequence# found across
-// all tables (see 2c)
-// - compaction pointers are cleared
-// - every table file is added at level 0
-//
-// Possible optimization 1:
-// (a) Compute total size and use to pick appropriate max-level M
-// (b) Sort tables by largest sequence# in the table
-// (c) For each table: if it overlaps earlier table, place in level-0,
-// else place in level-M.
-// Possible optimization 2:
-// Store per-table metadata (smallest, largest, largest-seq#, ...)
-// in the table's meta section to speed up ScanTable.
-
-#include "db/builder.h"
-#include "db/db_impl.h"
-#include "db/dbformat.h"
-#include "db/filename.h"
-#include "db/log_reader.h"
-#include "db/log_writer.h"
-#include "db/memtable.h"
-#include "db/table_cache.h"
-#include "db/version_edit.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-
-namespace rocksdb {
-
-namespace {
-
-class Repairer {
- public:
- Repairer(const std::string& dbname, const Options& options)
- : dbname_(dbname),
- env_(options.env),
- icmp_(options.comparator),
- ipolicy_(options.filter_policy),
- options_(SanitizeOptions(dbname, &icmp_, &ipolicy_, options)),
- next_file_number_(1) {
- // TableCache can be small since we expect each table to be opened once.
- table_cache_ = new TableCache(dbname_, &options_, storage_options_, 10);
- edit_ = new VersionEdit(options.num_levels);
- }
-
- ~Repairer() {
- delete table_cache_;
- delete edit_;
- }
-
- Status Run() {
- Status status = FindFiles();
- if (status.ok()) {
- ConvertLogFilesToTables();
- ExtractMetaData();
- status = WriteDescriptor();
- }
- if (status.ok()) {
- unsigned long long bytes = 0;
- for (size_t i = 0; i < tables_.size(); i++) {
- bytes += tables_[i].meta.file_size;
- }
- Log(options_.info_log,
- "**** Repaired rocksdb %s; "
- "recovered %d files; %llu bytes. "
- "Some data may have been lost. "
- "****",
- dbname_.c_str(),
- static_cast<int>(tables_.size()),
- bytes);
- }
- return status;
- }
-
- private:
- struct TableInfo {
- FileMetaData meta;
- SequenceNumber min_sequence;
- SequenceNumber max_sequence;
- };
-
- std::string const dbname_;
- Env* const env_;
- InternalKeyComparator const icmp_;
- InternalFilterPolicy const ipolicy_;
- Options const options_;
- TableCache* table_cache_;
- VersionEdit* edit_;
-
- std::vector<std::string> manifests_;
- std::vector<uint64_t> table_numbers_;
- std::vector<uint64_t> logs_;
- std::vector<TableInfo> tables_;
- uint64_t next_file_number_;
- const EnvOptions storage_options_;
-
- Status FindFiles() {
- std::vector<std::string> filenames;
- Status status = env_->GetChildren(dbname_, &filenames);
- if (!status.ok()) {
- return status;
- }
- if (filenames.empty()) {
- return Status::IOError(dbname_, "repair found no files");
- }
-
- uint64_t number;
- FileType type;
- for (size_t i = 0; i < filenames.size(); i++) {
- if (ParseFileName(filenames[i], &number, &type)) {
- if (type == kDescriptorFile) {
- manifests_.push_back(filenames[i]);
- } else {
- if (number + 1 > next_file_number_) {
- next_file_number_ = number + 1;
- }
- if (type == kLogFile) {
- logs_.push_back(number);
- } else if (type == kTableFile) {
- table_numbers_.push_back(number);
- } else {
- // Ignore other files
- }
- }
- }
- }
- return status;
- }
-
- void ConvertLogFilesToTables() {
- for (size_t i = 0; i < logs_.size(); i++) {
- std::string logname = LogFileName(dbname_, logs_[i]);
- Status status = ConvertLogToTable(logs_[i]);
- if (!status.ok()) {
- Log(options_.info_log, "Log #%llu: ignoring conversion error: %s",
- (unsigned long long) logs_[i],
- status.ToString().c_str());
- }
- ArchiveFile(logname);
- }
- }
-
- Status ConvertLogToTable(uint64_t log) {
- struct LogReporter : public log::Reader::Reporter {
- Env* env;
- std::shared_ptr<Logger> info_log;
- uint64_t lognum;
- virtual void Corruption(size_t bytes, const Status& s) {
- // We print error messages for corruption, but continue repairing.
- Log(info_log, "Log #%llu: dropping %d bytes; %s",
- (unsigned long long) lognum,
- static_cast<int>(bytes),
- s.ToString().c_str());
- }
- };
-
- // Open the log file
- std::string logname = LogFileName(dbname_, log);
- unique_ptr<SequentialFile> lfile;
- Status status = env_->NewSequentialFile(logname, &lfile, storage_options_);
- if (!status.ok()) {
- return status;
- }
-
- // Create the log reader.
- LogReporter reporter;
- reporter.env = env_;
- reporter.info_log = options_.info_log;
- reporter.lognum = log;
- // We intentially make log::Reader do checksumming so that
- // corruptions cause entire commits to be skipped instead of
- // propagating bad information (like overly large sequence
- // numbers).
- log::Reader reader(std::move(lfile), &reporter, false/*do not checksum*/,
- 0/*initial_offset*/);
-
- // Read all the records and add to a memtable
- std::string scratch;
- Slice record;
- WriteBatch batch;
- MemTable* mem = new MemTable(icmp_, options_.memtable_factory,
- options_.num_levels);
- mem->Ref();
- int counter = 0;
- while (reader.ReadRecord(&record, &scratch)) {
- if (record.size() < 12) {
- reporter.Corruption(
- record.size(), Status::Corruption("log record too small"));
- continue;
- }
- WriteBatchInternal::SetContents(&batch, record);
- status = WriteBatchInternal::InsertInto(&batch, mem, &options_);
- if (status.ok()) {
- counter += WriteBatchInternal::Count(&batch);
- } else {
- Log(options_.info_log, "Log #%llu: ignoring %s",
- (unsigned long long) log,
- status.ToString().c_str());
- status = Status::OK(); // Keep going with rest of file
- }
- }
-
- // Do not record a version edit for this conversion to a Table
- // since ExtractMetaData() will also generate edits.
- FileMetaData meta;
- meta.number = next_file_number_++;
- Iterator* iter = mem->NewIterator();
- status = BuildTable(dbname_, env_, options_, storage_options_,
- table_cache_, iter, &meta,
- icmp_.user_comparator(), 0, 0, true);
- delete iter;
- mem->Unref();
- mem = nullptr;
- if (status.ok()) {
- if (meta.file_size > 0) {
- table_numbers_.push_back(meta.number);
- }
- }
- Log(options_.info_log, "Log #%llu: %d ops saved to Table #%llu %s",
- (unsigned long long) log,
- counter,
- (unsigned long long) meta.number,
- status.ToString().c_str());
- return status;
- }
-
- void ExtractMetaData() {
- std::vector<TableInfo> kept;
- for (size_t i = 0; i < table_numbers_.size(); i++) {
- TableInfo t;
- t.meta.number = table_numbers_[i];
- Status status = ScanTable(&t);
- if (!status.ok()) {
- std::string fname = TableFileName(dbname_, table_numbers_[i]);
- Log(options_.info_log, "Table #%llu: ignoring %s",
- (unsigned long long) table_numbers_[i],
- status.ToString().c_str());
- ArchiveFile(fname);
- } else {
- tables_.push_back(t);
- }
- }
- }
-
- Status ScanTable(TableInfo* t) {
- std::string fname = TableFileName(dbname_, t->meta.number);
- int counter = 0;
- Status status = env_->GetFileSize(fname, &t->meta.file_size);
- if (status.ok()) {
- Iterator* iter = table_cache_->NewIterator(
- ReadOptions(), storage_options_, t->meta.number, t->meta.file_size);
- bool empty = true;
- ParsedInternalKey parsed;
- t->min_sequence = 0;
- t->max_sequence = 0;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- Slice key = iter->key();
- if (!ParseInternalKey(key, &parsed)) {
- Log(options_.info_log, "Table #%llu: unparsable key %s",
- (unsigned long long) t->meta.number,
- EscapeString(key).c_str());
- continue;
- }
-
- counter++;
- if (empty) {
- empty = false;
- t->meta.smallest.DecodeFrom(key);
- }
- t->meta.largest.DecodeFrom(key);
- if (parsed.sequence < t->min_sequence) {
- t->min_sequence = parsed.sequence;
- }
- if (parsed.sequence > t->max_sequence) {
- t->max_sequence = parsed.sequence;
- }
- }
- if (!iter->status().ok()) {
- status = iter->status();
- }
- delete iter;
- }
- Log(options_.info_log, "Table #%llu: %d entries %s",
- (unsigned long long) t->meta.number,
- counter,
- status.ToString().c_str());
- return status;
- }
-
- Status WriteDescriptor() {
- std::string tmp = TempFileName(dbname_, 1);
- unique_ptr<WritableFile> file;
- Status status = env_->NewWritableFile(tmp, &file, storage_options_);
- if (!status.ok()) {
- return status;
- }
-
- SequenceNumber max_sequence = 0;
- for (size_t i = 0; i < tables_.size(); i++) {
- if (max_sequence < tables_[i].max_sequence) {
- max_sequence = tables_[i].max_sequence;
- }
- }
-
- edit_->SetComparatorName(icmp_.user_comparator()->Name());
- edit_->SetLogNumber(0);
- edit_->SetNextFile(next_file_number_);
- edit_->SetLastSequence(max_sequence);
-
- for (size_t i = 0; i < tables_.size(); i++) {
- // TODO(opt): separate out into multiple levels
- const TableInfo& t = tables_[i];
- edit_->AddFile(0, t.meta.number, t.meta.file_size,
- t.meta.smallest, t.meta.largest,
- t.min_sequence, t.max_sequence);
- }
-
- //fprintf(stderr, "NewDescriptor:\n%s\n", edit_.DebugString().c_str());
- {
- log::Writer log(std::move(file));
- std::string record;
- edit_->EncodeTo(&record);
- status = log.AddRecord(record);
- }
-
- if (!status.ok()) {
- env_->DeleteFile(tmp);
- } else {
- // Discard older manifests
- for (size_t i = 0; i < manifests_.size(); i++) {
- ArchiveFile(dbname_ + "/" + manifests_[i]);
- }
-
- // Install new manifest
- status = env_->RenameFile(tmp, DescriptorFileName(dbname_, 1));
- if (status.ok()) {
- status = SetCurrentFile(env_, dbname_, 1);
- } else {
- env_->DeleteFile(tmp);
- }
- }
- return status;
- }
-
- void ArchiveFile(const std::string& fname) {
- // Move into another directory. E.g., for
- // dir/foo
- // rename to
- // dir/lost/foo
- const char* slash = strrchr(fname.c_str(), '/');
- std::string new_dir;
- if (slash != nullptr) {
- new_dir.assign(fname.data(), slash - fname.data());
- }
- new_dir.append("/lost");
- env_->CreateDir(new_dir); // Ignore error
- std::string new_file = new_dir;
- new_file.append("/");
- new_file.append((slash == nullptr) ? fname.c_str() : slash + 1);
- Status s = env_->RenameFile(fname, new_file);
- Log(options_.info_log, "Archiving %s: %s\n",
- fname.c_str(), s.ToString().c_str());
- }
-};
-} // namespace
-
-Status RepairDB(const std::string& dbname, const Options& options) {
- Repairer repairer(dbname, options);
- return repairer.Run();
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include <algorithm>
-#include <set>
-
-#include "rocksdb/db.h"
-#include "rocksdb/filter_policy.h"
-#include "db/db_impl.h"
-#include "db/filename.h"
-#include "db/version_set.h"
-#include "db/write_batch_internal.h"
-#include "db/db_statistics.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/env.h"
-#include "rocksdb/table.h"
-#include "util/hash.h"
-#include "util/logging.h"
-#include "util/mutexlock.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "utilities/merge_operators.h"
-
-using std::unique_ptr;
-
-namespace rocksdb {
-
-// SimpleTable is a simple table format for UNIT TEST ONLY. It is not built
-// as production quality.
-// SimpleTable requires the input key size to be fixed 16 bytes, value cannot
-// be longer than 150000 bytes and stored data on disk in this format:
-// +--------------------------------------------+ <= key1 offset
-// | key1 | value_size (4 bytes) | |
-// +----------------------------------------+ |
-// | value1 |
-// | |
-// +----------------------------------------+---+ <= key2 offset
-// | key2 | value_size (4 bytes) | |
-// +----------------------------------------+ |
-// | value2 |
-// | |
-// | ...... |
-// +-----------------+--------------------------+ <= index_block_offset
-// | key1 | key1 offset (8 bytes) |
-// +-----------------+--------------------------+
-// | key2 | key2 offset (8 bytes) |
-// +-----------------+--------------------------+
-// | key3 | key3 offset (8 bytes) |
-// +-----------------+--------------------------+
-// | ...... |
-// +-----------------+------------+-------------+
-// | index_block_offset (8 bytes) |
-// +------------------------------+
-
-// SimpleTable is a simple table format for UNIT TEST ONLY. It is not built
-// as production quality.
-class SimpleTableReader: public TableReader {
-public:
- // Attempt to open the table that is stored in bytes [0..file_size)
- // of "file", and read the metadata entries necessary to allow
- // retrieving data from the table.
- //
- // If successful, returns ok and sets "*table" to the newly opened
- // table. The client should delete "*table" when no longer needed.
- // If there was an error while initializing the table, sets "*table"
- // to nullptr and returns a non-ok status. Does not take ownership of
- // "*source", but the client must ensure that "source" remains live
- // for the duration of the returned table's lifetime.
- //
- // *file must remain live while this Table is in use.
- static Status Open(const Options& options, const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file, uint64_t file_size,
- unique_ptr<TableReader>* table_reader);
-
- bool PrefixMayMatch(const Slice& internal_prefix) override;
-
- Iterator* NewIterator(const ReadOptions&) override;
-
- Status Get(
- const ReadOptions&, const Slice& key, void* arg,
- bool (*handle_result)(void* arg, const Slice& k, const Slice& v, bool),
- void (*mark_key_may_exist)(void*) = nullptr) override;
-
- uint64_t ApproximateOffsetOf(const Slice& key) override;
-
- bool TEST_KeyInCache(const ReadOptions& options, const Slice& key) override;
-
- void SetupForCompaction() override;
-
- TableStats& GetTableStats() override;
-
- ~SimpleTableReader();
-
-private:
- struct Rep;
- Rep* rep_;
-
- explicit SimpleTableReader(Rep* rep) {
- rep_ = rep;
- }
- friend class TableCache;
- friend class SimpleTableIterator;
-
- Status GetOffset(const Slice& target, uint64_t* offset);
-
- // No copying allowed
- explicit SimpleTableReader(const TableReader&) = delete;
- void operator=(const TableReader&) = delete;
-};
-
-// Iterator to iterate SimpleTable
-class SimpleTableIterator: public Iterator {
-public:
- explicit SimpleTableIterator(SimpleTableReader* table);
- ~SimpleTableIterator();
-
- bool Valid() const;
-
- void SeekToFirst();
-
- void SeekToLast();
-
- void Seek(const Slice& target);
-
- void Next();
-
- void Prev();
-
- Slice key() const;
-
- Slice value() const;
-
- Status status() const;
-
-private:
- SimpleTableReader* table_;
- uint64_t offset_;
- uint64_t next_offset_;
- Slice key_;
- Slice value_;
- char tmp_str_[4];
- char* key_str_;
- char* value_str_;
- int value_str_len_;
- Status status_;
- // No copying allowed
- SimpleTableIterator(const SimpleTableIterator&) = delete;
- void operator=(const Iterator&) = delete;
-};
-
-struct SimpleTableReader::Rep {
- ~Rep() {
- }
- Rep(const EnvOptions& storage_options, uint64_t index_start_offset,
- int num_entries) :
- soptions(storage_options), index_start_offset(index_start_offset),
- num_entries(num_entries) {
- }
-
- Options options;
- const EnvOptions& soptions;
- Status status;
- unique_ptr<RandomAccessFile> file;
- uint64_t index_start_offset;
- int num_entries;
- TableStats table_stats;
-
- const static int user_key_size = 16;
- const static int offset_length = 8;
- const static int key_footer_len = 8;
-
- static int GetInternalKeyLength() {
- return user_key_size + key_footer_len;
- }
-};
-
-SimpleTableReader::~SimpleTableReader() {
- delete rep_;
-}
-
-Status SimpleTableReader::Open(const Options& options,
- const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file,
- uint64_t size,
- unique_ptr<TableReader>* table_reader) {
- char footer_space[Rep::offset_length];
- Slice footer_input;
- Status s = file->Read(size - Rep::offset_length, Rep::offset_length,
- &footer_input, footer_space);
- if (s.ok()) {
- uint64_t index_start_offset = DecodeFixed64(footer_space);
-
- int num_entries = (size - Rep::offset_length - index_start_offset)
- / (Rep::GetInternalKeyLength() + Rep::offset_length);
- SimpleTableReader::Rep* rep = new SimpleTableReader::Rep(soptions,
- index_start_offset,
- num_entries);
-
- rep->file = std::move(file);
- rep->options = options;
- table_reader->reset(new SimpleTableReader(rep));
- }
- return s;
-}
-
-void SimpleTableReader::SetupForCompaction() {
-}
-
-TableStats& SimpleTableReader::GetTableStats() {
- return rep_->table_stats;
-}
-
-bool SimpleTableReader::PrefixMayMatch(const Slice& internal_prefix) {
- return true;
-}
-
-Iterator* SimpleTableReader::NewIterator(const ReadOptions& options) {
- return new SimpleTableIterator(this);
-}
-
-Status SimpleTableReader::GetOffset(const Slice& target, uint64_t* offset) {
- uint32_t left = 0;
- uint32_t right = rep_->num_entries - 1;
- char key_chars[Rep::GetInternalKeyLength()];
- Slice tmp_slice;
-
- uint32_t target_offset = 0;
- while (left <= right) {
- uint32_t mid = (left + right + 1) / 2;
-
- uint64_t offset_to_read = rep_->index_start_offset
- + (Rep::GetInternalKeyLength() + Rep::offset_length) * mid;
- Status s = rep_->file->Read(offset_to_read, Rep::GetInternalKeyLength(),
- &tmp_slice, key_chars);
- if (!s.ok()) {
- return s;
- }
-
- int compare_result = rep_->options.comparator->Compare(tmp_slice, target);
-
- if (compare_result < 0) {
- if (left == right) {
- target_offset = right + 1;
- break;
- }
- left = mid;
- } else {
- if (left == right) {
- target_offset = left;
- break;
- }
- right = mid - 1;
- }
- }
-
- if (target_offset >= (uint32_t) rep_->num_entries) {
- *offset = rep_->index_start_offset;
- return Status::OK();
- }
-
- char value_offset_chars[Rep::offset_length];
-
- int64_t offset_for_value_offset = rep_->index_start_offset
- + (Rep::GetInternalKeyLength() + Rep::offset_length) * target_offset
- + Rep::GetInternalKeyLength();
- Status s = rep_->file->Read(offset_for_value_offset, Rep::offset_length,
- &tmp_slice, value_offset_chars);
- if (s.ok()) {
- *offset = DecodeFixed64(value_offset_chars);
- }
- return s;
-}
-
-Status SimpleTableReader::Get(
- const ReadOptions& options, const Slice& k, void* arg,
- bool (*saver)(void*, const Slice&, const Slice&, bool),
- void (*mark_key_may_exist)(void*)) {
- Status s;
- SimpleTableIterator* iter = new SimpleTableIterator(this);
- for (iter->Seek(k); iter->Valid(); iter->Next()) {
- if (!(*saver)(arg, iter->key(), iter->value(), true)) {
- break;
- }
- }
- s = iter->status();
- delete iter;
- return s;
-}
-
-bool SimpleTableReader::TEST_KeyInCache(const ReadOptions& options,
- const Slice& key) {
- return false;
-}
-
-uint64_t SimpleTableReader::ApproximateOffsetOf(const Slice& key) {
- return 0;
-}
-
-SimpleTableIterator::SimpleTableIterator(SimpleTableReader* table) :
- table_(table) {
- key_str_ = new char[SimpleTableReader::Rep::GetInternalKeyLength()];
- value_str_len_ = -1;
- SeekToFirst();
-}
-
-SimpleTableIterator::~SimpleTableIterator() {
- delete[] key_str_;
- if (value_str_len_ >= 0) {
- delete[] value_str_;
- }
-}
-
-bool SimpleTableIterator::Valid() const {
- return offset_ < table_->rep_->index_start_offset;
-}
-
-void SimpleTableIterator::SeekToFirst() {
- next_offset_ = 0;
- Next();
-}
-
-void SimpleTableIterator::SeekToLast() {
- assert(false);
-}
-
-void SimpleTableIterator::Seek(const Slice& target) {
- Status s = table_->GetOffset(target, &next_offset_);
- if (!s.ok()) {
- status_ = s;
- }
- Next();
-}
-
-void SimpleTableIterator::Next() {
- offset_ = next_offset_;
- if (offset_ >= table_->rep_->index_start_offset) {
- return;
- }
- Slice result;
- int internal_key_size = SimpleTableReader::Rep::GetInternalKeyLength();
-
- Status s = table_->rep_->file->Read(next_offset_, internal_key_size, &result,
- key_str_);
- next_offset_ += internal_key_size;
- key_ = result;
-
- Slice value_size_slice;
- s = table_->rep_->file->Read(next_offset_, 4, &value_size_slice, tmp_str_);
- next_offset_ += 4;
- uint32_t value_size = DecodeFixed32(tmp_str_);
-
- Slice value_slice;
- if ((int) value_size > value_str_len_) {
- if (value_str_len_ >= 0) {
- delete[] value_str_;
- }
- value_str_ = new char[value_size];
- value_str_len_ = value_size;
- }
- s = table_->rep_->file->Read(next_offset_, value_size, &value_slice,
- value_str_);
- next_offset_ += value_size;
- value_ = value_slice;
-}
-
-void SimpleTableIterator::Prev() {
- assert(false);
-}
-
-Slice SimpleTableIterator::key() const {
- Log(table_->rep_->options.info_log, "key!!!!");
- return key_;
-}
-
-Slice SimpleTableIterator::value() const {
- return value_;
-}
-
-Status SimpleTableIterator::status() const {
- return status_;
-}
-
-class SimpleTableBuilder: public TableBuilder {
-public:
- // Create a builder that will store the contents of the table it is
- // building in *file. Does not close the file. It is up to the
- // caller to close the file after calling Finish(). The output file
- // will be part of level specified by 'level'. A value of -1 means
- // that the caller does not know which level the output file will reside.
- SimpleTableBuilder(const Options& options, WritableFile* file,
- CompressionType compression_type);
-
- // REQUIRES: Either Finish() or Abandon() has been called.
- ~SimpleTableBuilder();
-
- // Add key,value to the table being constructed.
- // REQUIRES: key is after any previously added key according to comparator.
- // REQUIRES: Finish(), Abandon() have not been called
- void Add(const Slice& key, const Slice& value) override;
-
- // Return non-ok iff some error has been detected.
- Status status() const override;
-
- // Finish building the table. Stops using the file passed to the
- // constructor after this function returns.
- // REQUIRES: Finish(), Abandon() have not been called
- Status Finish() override;
-
- // Indicate that the contents of this builder should be abandoned. Stops
- // using the file passed to the constructor after this function returns.
- // If the caller is not going to call Finish(), it must call Abandon()
- // before destroying this builder.
- // REQUIRES: Finish(), Abandon() have not been called
- void Abandon() override;
-
- // Number of calls to Add() so far.
- uint64_t NumEntries() const override;
-
- // Size of the file generated so far. If invoked after a successful
- // Finish() call, returns the size of the final generated file.
- uint64_t FileSize() const override;
-
-private:
- struct Rep;
- Rep* rep_;
-
- // No copying allowed
- SimpleTableBuilder(const SimpleTableBuilder&) = delete;
- void operator=(const SimpleTableBuilder&) = delete;
-};
-
-struct SimpleTableBuilder::Rep {
- Options options;
- WritableFile* file;
- uint64_t offset = 0;
- Status status;
-
- uint64_t num_entries = 0;
-
- bool closed = false; // Either Finish() or Abandon() has been called.
-
- const static int user_key_size = 16;
- const static int offset_length = 8;
- const static int key_footer_len = 8;
-
- static int GetInternalKeyLength() {
- return user_key_size + key_footer_len;
- }
-
- std::string index;
-
- Rep(const Options& opt, WritableFile* f) :
- options(opt), file(f) {
- }
- ~Rep() {
- }
-};
-
-SimpleTableBuilder::SimpleTableBuilder(const Options& options,
- WritableFile* file,
- CompressionType compression_type) :
- rep_(new SimpleTableBuilder::Rep(options, file)) {
-}
-
-SimpleTableBuilder::~SimpleTableBuilder() {
- delete (rep_);
-}
-
-void SimpleTableBuilder::Add(const Slice& key, const Slice& value) {
- assert((int ) key.size() == Rep::GetInternalKeyLength());
-
- // Update index
- rep_->index.append(key.data(), key.size());
- PutFixed64(&(rep_->index), rep_->offset);
-
- // Write key-value pair
- rep_->file->Append(key);
- rep_->offset += Rep::GetInternalKeyLength();
-
- std::string size;
- int value_size = value.size();
- PutFixed32(&size, value_size);
- Slice sizeSlice(size);
- rep_->file->Append(sizeSlice);
- rep_->file->Append(value);
- rep_->offset += value_size + 4;
-
- rep_->num_entries++;
-}
-
-Status SimpleTableBuilder::status() const {
- return Status::OK();
-}
-
-Status SimpleTableBuilder::Finish() {
- Rep* r = rep_;
- assert(!r->closed);
- r->closed = true;
-
- uint64_t index_offset = rep_->offset;
- Slice index_slice(rep_->index);
- rep_->file->Append(index_slice);
- rep_->offset += index_slice.size();
-
- std::string index_offset_str;
- PutFixed64(&index_offset_str, index_offset);
- Slice foot_slice(index_offset_str);
- rep_->file->Append(foot_slice);
- rep_->offset += foot_slice.size();
-
- return Status::OK();
-}
-
-void SimpleTableBuilder::Abandon() {
- rep_->closed = true;
-}
-
-uint64_t SimpleTableBuilder::NumEntries() const {
- return rep_->num_entries;
-}
-
-uint64_t SimpleTableBuilder::FileSize() const {
- return rep_->offset;
-}
-
-class SimpleTableFactory: public TableFactory {
-public:
- ~SimpleTableFactory() {
- }
- SimpleTableFactory() {
- }
- const char* Name() const override {
- return "SimpleTable";
- }
- Status GetTableReader(const Options& options, const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file,
- uint64_t file_size,
- unique_ptr<TableReader>* table_reader) const;
-
- TableBuilder* GetTableBuilder(const Options& options, WritableFile* file,
- CompressionType compression_type) const;
-};
-
-Status SimpleTableFactory::GetTableReader(
- const Options& options, const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file, uint64_t file_size,
- unique_ptr<TableReader>* table_reader) const {
-
- return SimpleTableReader::Open(options, soptions, std::move(file), file_size,
- table_reader);
-}
-
-TableBuilder* SimpleTableFactory::GetTableBuilder(
- const Options& options, WritableFile* file,
- CompressionType compression_type) const {
- return new SimpleTableBuilder(options, file, compression_type);
-}
-
-class SimpleTableDBTest {
-protected:
-public:
- std::string dbname_;
- Env* env_;
- DB* db_;
-
- Options last_options_;
-
- SimpleTableDBTest() :
- env_(Env::Default()) {
- dbname_ = test::TmpDir() + "/simple_table_db_test";
- ASSERT_OK(DestroyDB(dbname_, Options()));
- db_ = nullptr;
- Reopen();
- }
-
- ~SimpleTableDBTest() {
- delete db_;
- ASSERT_OK(DestroyDB(dbname_, Options()));
- }
-
- // Return the current option configuration.
- Options CurrentOptions() {
- Options options;
- options.table_factory.reset(new SimpleTableFactory());
- return options;
- }
-
- DBImpl* dbfull() {
- return reinterpret_cast<DBImpl*>(db_);
- }
-
- void Reopen(Options* options = nullptr) {
- ASSERT_OK(TryReopen(options));
- }
-
- void Close() {
- delete db_;
- db_ = nullptr;
- }
-
- void DestroyAndReopen(Options* options = nullptr) {
- //Destroy using last options
- Destroy(&last_options_);
- ASSERT_OK(TryReopen(options));
- }
-
- void Destroy(Options* options) {
- delete db_;
- db_ = nullptr;
- ASSERT_OK(DestroyDB(dbname_, *options));
- }
-
- Status PureReopen(Options* options, DB** db) {
- return DB::Open(*options, dbname_, db);
- }
-
- Status TryReopen(Options* options = nullptr) {
- delete db_;
- db_ = nullptr;
- Options opts;
- if (options != nullptr) {
- opts = *options;
- } else {
- opts = CurrentOptions();
- opts.create_if_missing = true;
- }
- last_options_ = opts;
-
- return DB::Open(opts, dbname_, &db_);
- }
-
- Status Put(const Slice& k, const Slice& v) {
- return db_->Put(WriteOptions(), k, v);
- }
-
- Status Delete(const std::string& k) {
- return db_->Delete(WriteOptions(), k);
- }
-
- std::string Get(const std::string& k, const Snapshot* snapshot = nullptr) {
- ReadOptions options;
- options.snapshot = snapshot;
- std::string result;
- Status s = db_->Get(options, k, &result);
- if (s.IsNotFound()) {
- result = "NOT_FOUND";
- } else if (!s.ok()) {
- result = s.ToString();
- }
- return result;
- }
-
-
- int NumTableFilesAtLevel(int level) {
- std::string property;
- ASSERT_TRUE(
- db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
- &property));
- return atoi(property.c_str());
- }
-
- // Return spread of files per level
- std::string FilesPerLevel() {
- std::string result;
- int last_non_zero_offset = 0;
- for (int level = 0; level < db_->NumberLevels(); level++) {
- int f = NumTableFilesAtLevel(level);
- char buf[100];
- snprintf(buf, sizeof(buf), "%s%d", (level ? "," : ""), f);
- result += buf;
- if (f > 0) {
- last_non_zero_offset = result.size();
- }
- }
- result.resize(last_non_zero_offset);
- return result;
- }
-
- std::string IterStatus(Iterator* iter) {
- std::string result;
- if (iter->Valid()) {
- result = iter->key().ToString() + "->" + iter->value().ToString();
- } else {
- result = "(invalid)";
- }
- return result;
- }
-};
-
-TEST(SimpleTableDBTest, Empty) {
- ASSERT_TRUE(db_ != nullptr);
- ASSERT_EQ("NOT_FOUND", Get("0000000000000foo"));
-}
-
-TEST(SimpleTableDBTest, ReadWrite) {
- ASSERT_OK(Put("0000000000000foo", "v1"));
- ASSERT_EQ("v1", Get("0000000000000foo"));
- ASSERT_OK(Put("0000000000000bar", "v2"));
- ASSERT_OK(Put("0000000000000foo", "v3"));
- ASSERT_EQ("v3", Get("0000000000000foo"));
- ASSERT_EQ("v2", Get("0000000000000bar"));
-}
-
-TEST(SimpleTableDBTest, Flush) {
- ASSERT_OK(Put("0000000000000foo", "v1"));
- ASSERT_OK(Put("0000000000000bar", "v2"));
- ASSERT_OK(Put("0000000000000foo", "v3"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v3", Get("0000000000000foo"));
- ASSERT_EQ("v2", Get("0000000000000bar"));
-}
-
-TEST(SimpleTableDBTest, Flush2) {
- ASSERT_OK(Put("0000000000000bar", "b"));
- ASSERT_OK(Put("0000000000000foo", "v1"));
- dbfull()->TEST_FlushMemTable();
-
- ASSERT_OK(Put("0000000000000foo", "v2"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v2", Get("0000000000000foo"));
-
- ASSERT_OK(Put("0000000000000eee", "v3"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v3", Get("0000000000000eee"));
-
- ASSERT_OK(Delete("0000000000000bar"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("NOT_FOUND", Get("0000000000000bar"));
-
- ASSERT_OK(Put("0000000000000eee", "v5"));
- dbfull()->TEST_FlushMemTable();
- ASSERT_EQ("v5", Get("0000000000000eee"));
-}
-
-static std::string Key(int i) {
- char buf[100];
- snprintf(buf, sizeof(buf), "key_______%06d", i);
- return std::string(buf);
-}
-
-static std::string RandomString(Random* rnd, int len) {
- std::string r;
- test::RandomString(rnd, len, &r);
- return r;
-}
-
-TEST(SimpleTableDBTest, CompactionTrigger) {
- Options options = CurrentOptions();
- options.write_buffer_size = 100 << 10; //100KB
- options.num_levels = 3;
- options.max_mem_compaction_level = 0;
- options.level0_file_num_compaction_trigger = 3;
- Reopen(&options);
-
- Random rnd(301);
-
- for (int num = 0; num < options.level0_file_num_compaction_trigger - 1;
- num++) {
- std::vector<std::string> values;
- // Write 120KB (12 values, each 10K)
- for (int i = 0; i < 12; i++) {
- values.push_back(RandomString(&rnd, 10000));
- ASSERT_OK(Put(Key(i), values[i]));
- }
- dbfull()->TEST_WaitForFlushMemTable();
- ASSERT_EQ(NumTableFilesAtLevel(0), num + 1);
- }
-
- //generate one more file in level-0, and should trigger level-0 compaction
- std::vector<std::string> values;
- for (int i = 0; i < 12; i++) {
- values.push_back(RandomString(&rnd, 10000));
- ASSERT_OK(Put(Key(i), values[i]));
- }
- dbfull()->TEST_WaitForCompact();
-
- ASSERT_EQ(NumTableFilesAtLevel(0), 0);
- ASSERT_EQ(NumTableFilesAtLevel(1), 1);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Thread safety
-// -------------
-//
-// Writes require external synchronization, most likely a mutex.
-// Reads require a guarantee that the SkipList will not be destroyed
-// while the read is in progress. Apart from that, reads progress
-// without any internal locking or synchronization.
-//
-// Invariants:
-//
-// (1) Allocated nodes are never deleted until the SkipList is
-// destroyed. This is trivially guaranteed by the code since we
-// never delete any skip list nodes.
-//
-// (2) The contents of a Node except for the next/prev pointers are
-// immutable after the Node has been linked into the SkipList.
-// Only Insert() modifies the list, and it is careful to initialize
-// a node and use release-stores to publish the nodes in one or
-// more lists.
-//
-// ... prev vs. next pointer ordering ...
-//
-
-#pragma once
-#include <assert.h>
-#include <stdlib.h>
-#include "port/port.h"
-#include "util/random.h"
-
-namespace rocksdb {
-
-template<typename Key, class Comparator>
-class SkipList {
- private:
- struct Node;
-
- public:
- // Create a new SkipList object that will use "cmp" for comparing keys,
- // and will allocate memory using "*arena". Objects allocated in the arena
- // must remain allocated for the lifetime of the skiplist object.
- explicit SkipList(Comparator cmp, Arena* arena);
-
- // Insert key into the list.
- // REQUIRES: nothing that compares equal to key is currently in the list.
- void Insert(const Key& key);
-
- // Returns true iff an entry that compares equal to key is in the list.
- bool Contains(const Key& key) const;
-
- // Iteration over the contents of a skip list
- class Iterator {
- public:
- // Initialize an iterator over the specified list.
- // The returned iterator is not valid.
- explicit Iterator(const SkipList* list);
-
- // Change the underlying skiplist used for this iterator
- // This enables us not changing the iterator without deallocating
- // an old one and then allocating a new one
- void SetList(const SkipList* list);
-
- // Returns true iff the iterator is positioned at a valid node.
- bool Valid() const;
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- const Key& key() const;
-
- // Advances to the next position.
- // REQUIRES: Valid()
- void Next();
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- void Prev();
-
- // Advance to the first entry with a key >= target
- void Seek(const Key& target);
-
- // Position at the first entry in list.
- // Final state of iterator is Valid() iff list is not empty.
- void SeekToFirst();
-
- // Position at the last entry in list.
- // Final state of iterator is Valid() iff list is not empty.
- void SeekToLast();
-
- private:
- const SkipList* list_;
- Node* node_;
- // Intentionally copyable
- };
-
- private:
- enum { kMaxHeight = 12 };
-
- // Immutable after construction
- Comparator const compare_;
- Arena* const arena_; // Arena used for allocations of nodes
-
- Node* const head_;
-
- // Modified only by Insert(). Read racily by readers, but stale
- // values are ok.
- port::AtomicPointer max_height_; // Height of the entire list
-
- // Used for optimizing sequential insert patterns
- Node* prev_[kMaxHeight];
- int prev_height_;
-
- inline int GetMaxHeight() const {
- return static_cast<int>(
- reinterpret_cast<intptr_t>(max_height_.NoBarrier_Load()));
- }
-
- // Read/written only by Insert().
- Random rnd_;
-
- Node* NewNode(const Key& key, int height);
- int RandomHeight();
- bool Equal(const Key& a, const Key& b) const { return (compare_(a, b) == 0); }
-
- // Return true if key is greater than the data stored in "n"
- bool KeyIsAfterNode(const Key& key, Node* n) const;
-
- // Return the earliest node that comes at or after key.
- // Return nullptr if there is no such node.
- //
- // If prev is non-nullptr, fills prev[level] with pointer to previous
- // node at "level" for every level in [0..max_height_-1].
- Node* FindGreaterOrEqual(const Key& key, Node** prev) const;
-
- // Return the latest node with a key < key.
- // Return head_ if there is no such node.
- Node* FindLessThan(const Key& key) const;
-
- // Return the last node in the list.
- // Return head_ if list is empty.
- Node* FindLast() const;
-
- // No copying allowed
- SkipList(const SkipList&);
- void operator=(const SkipList&);
-};
-
-// Implementation details follow
-template<typename Key, class Comparator>
-struct SkipList<Key,Comparator>::Node {
- explicit Node(const Key& k) : key(k) { }
-
- Key const key;
-
- // Accessors/mutators for links. Wrapped in methods so we can
- // add the appropriate barriers as necessary.
- Node* Next(int n) {
- assert(n >= 0);
- // Use an 'acquire load' so that we observe a fully initialized
- // version of the returned Node.
- return reinterpret_cast<Node*>(next_[n].Acquire_Load());
- }
- void SetNext(int n, Node* x) {
- assert(n >= 0);
- // Use a 'release store' so that anybody who reads through this
- // pointer observes a fully initialized version of the inserted node.
- next_[n].Release_Store(x);
- }
-
- // No-barrier variants that can be safely used in a few locations.
- Node* NoBarrier_Next(int n) {
- assert(n >= 0);
- return reinterpret_cast<Node*>(next_[n].NoBarrier_Load());
- }
- void NoBarrier_SetNext(int n, Node* x) {
- assert(n >= 0);
- next_[n].NoBarrier_Store(x);
- }
-
- private:
- // Array of length equal to the node height. next_[0] is lowest level link.
- port::AtomicPointer next_[1];
-};
-
-template<typename Key, class Comparator>
-typename SkipList<Key,Comparator>::Node*
-SkipList<Key,Comparator>::NewNode(const Key& key, int height) {
- char* mem = arena_->AllocateAligned(
- sizeof(Node) + sizeof(port::AtomicPointer) * (height - 1));
- return new (mem) Node(key);
-}
-
-template<typename Key, class Comparator>
-inline SkipList<Key,Comparator>::Iterator::Iterator(const SkipList* list) {
- SetList(list);
-}
-
-template<typename Key, class Comparator>
-inline void SkipList<Key,Comparator>::Iterator::SetList(const SkipList* list) {
- list_ = list;
- node_ = nullptr;
-}
-
-template<typename Key, class Comparator>
-inline bool SkipList<Key,Comparator>::Iterator::Valid() const {
- return node_ != nullptr;
-}
-
-template<typename Key, class Comparator>
-inline const Key& SkipList<Key,Comparator>::Iterator::key() const {
- assert(Valid());
- return node_->key;
-}
-
-template<typename Key, class Comparator>
-inline void SkipList<Key,Comparator>::Iterator::Next() {
- assert(Valid());
- node_ = node_->Next(0);
-}
-
-template<typename Key, class Comparator>
-inline void SkipList<Key,Comparator>::Iterator::Prev() {
- // Instead of using explicit "prev" links, we just search for the
- // last node that falls before key.
- assert(Valid());
- node_ = list_->FindLessThan(node_->key);
- if (node_ == list_->head_) {
- node_ = nullptr;
- }
-}
-
-template<typename Key, class Comparator>
-inline void SkipList<Key,Comparator>::Iterator::Seek(const Key& target) {
- node_ = list_->FindGreaterOrEqual(target, nullptr);
-}
-
-template<typename Key, class Comparator>
-inline void SkipList<Key,Comparator>::Iterator::SeekToFirst() {
- node_ = list_->head_->Next(0);
-}
-
-template<typename Key, class Comparator>
-inline void SkipList<Key,Comparator>::Iterator::SeekToLast() {
- node_ = list_->FindLast();
- if (node_ == list_->head_) {
- node_ = nullptr;
- }
-}
-
-template<typename Key, class Comparator>
-int SkipList<Key,Comparator>::RandomHeight() {
- // Increase height with probability 1 in kBranching
- static const unsigned int kBranching = 4;
- int height = 1;
- while (height < kMaxHeight && ((rnd_.Next() % kBranching) == 0)) {
- height++;
- }
- assert(height > 0);
- assert(height <= kMaxHeight);
- return height;
-}
-
-template<typename Key, class Comparator>
-bool SkipList<Key,Comparator>::KeyIsAfterNode(const Key& key, Node* n) const {
- // nullptr n is considered infinite
- return (n != nullptr) && (compare_(n->key, key) < 0);
-}
-
-template<typename Key, class Comparator>
-typename SkipList<Key,Comparator>::Node* SkipList<Key,Comparator>::FindGreaterOrEqual(const Key& key, Node** prev)
- const {
- // Use prev as an optimization hint and fallback to slow path
- if (prev && !KeyIsAfterNode(key, prev[0]->Next(0))) {
- Node* x = prev[0];
- Node* next = x->Next(0);
- if ((x == head_) || KeyIsAfterNode(key, x)) {
- // Adjust all relevant insertion points to the previous entry
- for (int i = 1; i < prev_height_; i++) {
- prev[i] = x;
- }
- return next;
- }
- }
- // Normal lookup
- Node* x = head_;
- int level = GetMaxHeight() - 1;
- while (true) {
- Node* next = x->Next(level);
- // Make sure the lists are sorted.
- // If x points to head_ or next points nullptr, it is trivially satisfied.
- assert((x == head_) || (next == nullptr) || KeyIsAfterNode(next->key, x));
- if (KeyIsAfterNode(key, next)) {
- // Keep searching in this list
- x = next;
- } else {
- if (prev != nullptr) prev[level] = x;
- if (level == 0) {
- return next;
- } else {
- // Switch to next list
- level--;
- }
- }
- }
-}
-
-template<typename Key, class Comparator>
-typename SkipList<Key,Comparator>::Node*
-SkipList<Key,Comparator>::FindLessThan(const Key& key) const {
- Node* x = head_;
- int level = GetMaxHeight() - 1;
- while (true) {
- assert(x == head_ || compare_(x->key, key) < 0);
- Node* next = x->Next(level);
- if (next == nullptr || compare_(next->key, key) >= 0) {
- if (level == 0) {
- return x;
- } else {
- // Switch to next list
- level--;
- }
- } else {
- x = next;
- }
- }
-}
-
-template<typename Key, class Comparator>
-typename SkipList<Key,Comparator>::Node* SkipList<Key,Comparator>::FindLast()
- const {
- Node* x = head_;
- int level = GetMaxHeight() - 1;
- while (true) {
- Node* next = x->Next(level);
- if (next == nullptr) {
- if (level == 0) {
- return x;
- } else {
- // Switch to next list
- level--;
- }
- } else {
- x = next;
- }
- }
-}
-
-template<typename Key, class Comparator>
-SkipList<Key,Comparator>::SkipList(Comparator cmp, Arena* arena)
- : compare_(cmp),
- arena_(arena),
- head_(NewNode(0 /* any key will do */, kMaxHeight)),
- max_height_(reinterpret_cast<void*>(1)),
- prev_height_(1),
- rnd_(0xdeadbeef) {
- for (int i = 0; i < kMaxHeight; i++) {
- head_->SetNext(i, nullptr);
- prev_[i] = head_;
- }
-}
-
-template<typename Key, class Comparator>
-void SkipList<Key,Comparator>::Insert(const Key& key) {
- // TODO(opt): We can use a barrier-free variant of FindGreaterOrEqual()
- // here since Insert() is externally synchronized.
- Node* x = FindGreaterOrEqual(key, prev_);
-
- // Our data structure does not allow duplicate insertion
- assert(x == nullptr || !Equal(key, x->key));
-
- int height = RandomHeight();
- if (height > GetMaxHeight()) {
- for (int i = GetMaxHeight(); i < height; i++) {
- prev_[i] = head_;
- }
- //fprintf(stderr, "Change height from %d to %d\n", max_height_, height);
-
- // It is ok to mutate max_height_ without any synchronization
- // with concurrent readers. A concurrent reader that observes
- // the new value of max_height_ will see either the old value of
- // new level pointers from head_ (nullptr), or a new value set in
- // the loop below. In the former case the reader will
- // immediately drop to the next level since nullptr sorts after all
- // keys. In the latter case the reader will use the new node.
- max_height_.NoBarrier_Store(reinterpret_cast<void*>(height));
- }
-
- x = NewNode(key, height);
- for (int i = 0; i < height; i++) {
- // NoBarrier_SetNext() suffices since we will add a barrier when
- // we publish a pointer to "x" in prev[i].
- x->NoBarrier_SetNext(i, prev_[i]->NoBarrier_Next(i));
- prev_[i]->SetNext(i, x);
- }
- prev_[0] = x;
- prev_height_ = height;
-}
-
-template<typename Key, class Comparator>
-bool SkipList<Key,Comparator>::Contains(const Key& key) const {
- Node* x = FindGreaterOrEqual(key, nullptr);
- if (x != nullptr && Equal(key, x->key)) {
- return true;
- } else {
- return false;
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/skiplist.h"
-#include <set>
-#include "rocksdb/env.h"
-#include "util/arena_impl.h"
-#include "util/hash.h"
-#include "util/random.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-typedef uint64_t Key;
-
-struct TestComparator {
- int operator()(const Key& a, const Key& b) const {
- if (a < b) {
- return -1;
- } else if (a > b) {
- return +1;
- } else {
- return 0;
- }
- }
-};
-
-class SkipTest { };
-
-TEST(SkipTest, Empty) {
- ArenaImpl arena_impl;
- TestComparator cmp;
- SkipList<Key, TestComparator> list(cmp, &arena_impl);
- ASSERT_TRUE(!list.Contains(10));
-
- SkipList<Key, TestComparator>::Iterator iter(&list);
- ASSERT_TRUE(!iter.Valid());
- iter.SeekToFirst();
- ASSERT_TRUE(!iter.Valid());
- iter.Seek(100);
- ASSERT_TRUE(!iter.Valid());
- iter.SeekToLast();
- ASSERT_TRUE(!iter.Valid());
-}
-
-TEST(SkipTest, InsertAndLookup) {
- const int N = 2000;
- const int R = 5000;
- Random rnd(1000);
- std::set<Key> keys;
- ArenaImpl arena_impl;
- TestComparator cmp;
- SkipList<Key, TestComparator> list(cmp, &arena_impl);
- for (int i = 0; i < N; i++) {
- Key key = rnd.Next() % R;
- if (keys.insert(key).second) {
- list.Insert(key);
- }
- }
-
- for (int i = 0; i < R; i++) {
- if (list.Contains(i)) {
- ASSERT_EQ(keys.count(i), 1U);
- } else {
- ASSERT_EQ(keys.count(i), 0U);
- }
- }
-
- // Simple iterator tests
- {
- SkipList<Key, TestComparator>::Iterator iter(&list);
- ASSERT_TRUE(!iter.Valid());
-
- iter.Seek(0);
- ASSERT_TRUE(iter.Valid());
- ASSERT_EQ(*(keys.begin()), iter.key());
-
- iter.SeekToFirst();
- ASSERT_TRUE(iter.Valid());
- ASSERT_EQ(*(keys.begin()), iter.key());
-
- iter.SeekToLast();
- ASSERT_TRUE(iter.Valid());
- ASSERT_EQ(*(keys.rbegin()), iter.key());
- }
-
- // Forward iteration test
- for (int i = 0; i < R; i++) {
- SkipList<Key, TestComparator>::Iterator iter(&list);
- iter.Seek(i);
-
- // Compare against model iterator
- std::set<Key>::iterator model_iter = keys.lower_bound(i);
- for (int j = 0; j < 3; j++) {
- if (model_iter == keys.end()) {
- ASSERT_TRUE(!iter.Valid());
- break;
- } else {
- ASSERT_TRUE(iter.Valid());
- ASSERT_EQ(*model_iter, iter.key());
- ++model_iter;
- iter.Next();
- }
- }
- }
-
- // Backward iteration test
- {
- SkipList<Key, TestComparator>::Iterator iter(&list);
- iter.SeekToLast();
-
- // Compare against model iterator
- for (std::set<Key>::reverse_iterator model_iter = keys.rbegin();
- model_iter != keys.rend();
- ++model_iter) {
- ASSERT_TRUE(iter.Valid());
- ASSERT_EQ(*model_iter, iter.key());
- iter.Prev();
- }
- ASSERT_TRUE(!iter.Valid());
- }
-}
-
-// We want to make sure that with a single writer and multiple
-// concurrent readers (with no synchronization other than when a
-// reader's iterator is created), the reader always observes all the
-// data that was present in the skip list when the iterator was
-// constructor. Because insertions are happening concurrently, we may
-// also observe new values that were inserted since the iterator was
-// constructed, but we should never miss any values that were present
-// at iterator construction time.
-//
-// We generate multi-part keys:
-// <key,gen,hash>
-// where:
-// key is in range [0..K-1]
-// gen is a generation number for key
-// hash is hash(key,gen)
-//
-// The insertion code picks a random key, sets gen to be 1 + the last
-// generation number inserted for that key, and sets hash to Hash(key,gen).
-//
-// At the beginning of a read, we snapshot the last inserted
-// generation number for each key. We then iterate, including random
-// calls to Next() and Seek(). For every key we encounter, we
-// check that it is either expected given the initial snapshot or has
-// been concurrently added since the iterator started.
-class ConcurrentTest {
- private:
- static const uint32_t K = 4;
-
- static uint64_t key(Key key) { return (key >> 40); }
- static uint64_t gen(Key key) { return (key >> 8) & 0xffffffffu; }
- static uint64_t hash(Key key) { return key & 0xff; }
-
- static uint64_t HashNumbers(uint64_t k, uint64_t g) {
- uint64_t data[2] = { k, g };
- return Hash(reinterpret_cast<char*>(data), sizeof(data), 0);
- }
-
- static Key MakeKey(uint64_t k, uint64_t g) {
- assert(sizeof(Key) == sizeof(uint64_t));
- assert(k <= K); // We sometimes pass K to seek to the end of the skiplist
- assert(g <= 0xffffffffu);
- return ((k << 40) | (g << 8) | (HashNumbers(k, g) & 0xff));
- }
-
- static bool IsValidKey(Key k) {
- return hash(k) == (HashNumbers(key(k), gen(k)) & 0xff);
- }
-
- static Key RandomTarget(Random* rnd) {
- switch (rnd->Next() % 10) {
- case 0:
- // Seek to beginning
- return MakeKey(0, 0);
- case 1:
- // Seek to end
- return MakeKey(K, 0);
- default:
- // Seek to middle
- return MakeKey(rnd->Next() % K, 0);
- }
- }
-
- // Per-key generation
- struct State {
- port::AtomicPointer generation[K];
- void Set(int k, intptr_t v) {
- generation[k].Release_Store(reinterpret_cast<void*>(v));
- }
- intptr_t Get(int k) {
- return reinterpret_cast<intptr_t>(generation[k].Acquire_Load());
- }
-
- State() {
- for (unsigned int k = 0; k < K; k++) {
- Set(k, 0);
- }
- }
- };
-
- // Current state of the test
- State current_;
-
- ArenaImpl arena_impl_;
-
- // SkipList is not protected by mu_. We just use a single writer
- // thread to modify it.
- SkipList<Key, TestComparator> list_;
-
- public:
- ConcurrentTest() : list_(TestComparator(), &arena_impl_) { }
-
- // REQUIRES: External synchronization
- void WriteStep(Random* rnd) {
- const uint32_t k = rnd->Next() % K;
- const intptr_t g = current_.Get(k) + 1;
- const Key key = MakeKey(k, g);
- list_.Insert(key);
- current_.Set(k, g);
- }
-
- void ReadStep(Random* rnd) {
- // Remember the initial committed state of the skiplist.
- State initial_state;
- for (unsigned int k = 0; k < K; k++) {
- initial_state.Set(k, current_.Get(k));
- }
-
- Key pos = RandomTarget(rnd);
- SkipList<Key, TestComparator>::Iterator iter(&list_);
- iter.Seek(pos);
- while (true) {
- Key current;
- if (!iter.Valid()) {
- current = MakeKey(K, 0);
- } else {
- current = iter.key();
- ASSERT_TRUE(IsValidKey(current)) << current;
- }
- ASSERT_LE(pos, current) << "should not go backwards";
-
- // Verify that everything in [pos,current) was not present in
- // initial_state.
- while (pos < current) {
- ASSERT_LT(key(pos), K) << pos;
-
- // Note that generation 0 is never inserted, so it is ok if
- // <*,0,*> is missing.
- ASSERT_TRUE((gen(pos) == 0U) ||
- (gen(pos) > (uint64_t)initial_state.Get(key(pos)))
- ) << "key: " << key(pos)
- << "; gen: " << gen(pos)
- << "; initgen: "
- << initial_state.Get(key(pos));
-
- // Advance to next key in the valid key space
- if (key(pos) < key(current)) {
- pos = MakeKey(key(pos) + 1, 0);
- } else {
- pos = MakeKey(key(pos), gen(pos) + 1);
- }
- }
-
- if (!iter.Valid()) {
- break;
- }
-
- if (rnd->Next() % 2) {
- iter.Next();
- pos = MakeKey(key(pos), gen(pos) + 1);
- } else {
- Key new_target = RandomTarget(rnd);
- if (new_target > pos) {
- pos = new_target;
- iter.Seek(new_target);
- }
- }
- }
- }
-};
-const uint32_t ConcurrentTest::K;
-
-// Simple test that does single-threaded testing of the ConcurrentTest
-// scaffolding.
-TEST(SkipTest, ConcurrentWithoutThreads) {
- ConcurrentTest test;
- Random rnd(test::RandomSeed());
- for (int i = 0; i < 10000; i++) {
- test.ReadStep(&rnd);
- test.WriteStep(&rnd);
- }
-}
-
-class TestState {
- public:
- ConcurrentTest t_;
- int seed_;
- port::AtomicPointer quit_flag_;
-
- enum ReaderState {
- STARTING,
- RUNNING,
- DONE
- };
-
- explicit TestState(int s)
- : seed_(s),
- quit_flag_(nullptr),
- state_(STARTING),
- state_cv_(&mu_) {}
-
- void Wait(ReaderState s) {
- mu_.Lock();
- while (state_ != s) {
- state_cv_.Wait();
- }
- mu_.Unlock();
- }
-
- void Change(ReaderState s) {
- mu_.Lock();
- state_ = s;
- state_cv_.Signal();
- mu_.Unlock();
- }
-
- private:
- port::Mutex mu_;
- ReaderState state_;
- port::CondVar state_cv_;
-};
-
-static void ConcurrentReader(void* arg) {
- TestState* state = reinterpret_cast<TestState*>(arg);
- Random rnd(state->seed_);
- int64_t reads = 0;
- state->Change(TestState::RUNNING);
- while (!state->quit_flag_.Acquire_Load()) {
- state->t_.ReadStep(&rnd);
- ++reads;
- }
- state->Change(TestState::DONE);
-}
-
-static void RunConcurrent(int run) {
- const int seed = test::RandomSeed() + (run * 100);
- Random rnd(seed);
- const int N = 1000;
- const int kSize = 1000;
- for (int i = 0; i < N; i++) {
- if ((i % 100) == 0) {
- fprintf(stderr, "Run %d of %d\n", i, N);
- }
- TestState state(seed + 1);
- Env::Default()->Schedule(ConcurrentReader, &state);
- state.Wait(TestState::RUNNING);
- for (int i = 0; i < kSize; i++) {
- state.t_.WriteStep(&rnd);
- }
- state.quit_flag_.Release_Store(&state); // Any non-nullptr arg will do
- state.Wait(TestState::DONE);
- }
-}
-
-TEST(SkipTest, Concurrent1) { RunConcurrent(1); }
-TEST(SkipTest, Concurrent2) { RunConcurrent(2); }
-TEST(SkipTest, Concurrent3) { RunConcurrent(3); }
-TEST(SkipTest, Concurrent4) { RunConcurrent(4); }
-TEST(SkipTest, Concurrent5) { RunConcurrent(5); }
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/db.h"
-
-namespace rocksdb {
-
-class SnapshotList;
-
-// Snapshots are kept in a doubly-linked list in the DB.
-// Each SnapshotImpl corresponds to a particular sequence number.
-class SnapshotImpl : public Snapshot {
- public:
- SequenceNumber number_; // const after creation
-
- private:
- friend class SnapshotList;
-
- // SnapshotImpl is kept in a doubly-linked circular list
- SnapshotImpl* prev_;
- SnapshotImpl* next_;
-
- SnapshotList* list_; // just for sanity checks
-};
-
-class SnapshotList {
- public:
- SnapshotList() {
- list_.prev_ = &list_;
- list_.next_ = &list_;
- list_.number_ = 0xFFFFFFFFL; // placeholder marker, for debugging
- }
-
- bool empty() const { return list_.next_ == &list_; }
- SnapshotImpl* oldest() const { assert(!empty()); return list_.next_; }
- SnapshotImpl* newest() const { assert(!empty()); return list_.prev_; }
-
- const SnapshotImpl* New(SequenceNumber seq) {
- SnapshotImpl* s = new SnapshotImpl;
- s->number_ = seq;
- s->list_ = this;
- s->next_ = &list_;
- s->prev_ = list_.prev_;
- s->prev_->next_ = s;
- s->next_->prev_ = s;
- return s;
- }
-
- void Delete(const SnapshotImpl* s) {
- assert(s->list_ == this);
- s->prev_->next_ = s->next_;
- s->next_->prev_ = s->prev_;
- delete s;
- }
-
- // retrieve all snapshot numbers. They are sorted in ascending order.
- void getAll(std::vector<SequenceNumber>& ret) {
- if (empty()) return;
- SnapshotImpl* s = &list_;
- while (s->next_ != &list_) {
- ret.push_back(s->next_->number_);
- s = s ->next_;
- }
- }
-
- // get the sequence number of the most recent snapshot
- const SequenceNumber GetNewest() {
- if (empty()) {
- return 0;
- }
- return newest()->number_;
- }
-
- private:
- // Dummy head of doubly-linked list of snapshots
- SnapshotImpl list_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/table_cache.h"
-
-#include "db/filename.h"
-
-#include "rocksdb/statistics.h"
-#include "rocksdb/table.h"
-#include "util/coding.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-static void DeleteEntry(const Slice& key, void* value) {
- TableReader* table_reader = reinterpret_cast<TableReader*>(value);
- delete table_reader;
-}
-
-static void UnrefEntry(void* arg1, void* arg2) {
- Cache* cache = reinterpret_cast<Cache*>(arg1);
- Cache::Handle* h = reinterpret_cast<Cache::Handle*>(arg2);
- cache->Release(h);
-}
-
-TableCache::TableCache(const std::string& dbname,
- const Options* options,
- const EnvOptions& storage_options,
- int entries)
- : env_(options->env),
- dbname_(dbname),
- options_(options),
- storage_options_(storage_options),
- cache_(
- NewLRUCache(entries, options->table_cache_numshardbits,
- options->table_cache_remove_scan_count_limit)) {
-}
-
-TableCache::~TableCache() {
-}
-
-Status TableCache::FindTable(const EnvOptions& toptions,
- uint64_t file_number, uint64_t file_size,
- Cache::Handle** handle, bool* table_io,
- const bool no_io) {
- Status s;
- char buf[sizeof(file_number)];
- EncodeFixed64(buf, file_number);
- Slice key(buf, sizeof(buf));
- *handle = cache_->Lookup(key);
- if (*handle == nullptr) {
- if (no_io) { // Dont do IO and return a not-found status
- return Status::Incomplete("Table not found in table_cache, no_io is set");
- }
- if (table_io != nullptr) {
- *table_io = true; // we had to do IO from storage
- }
- std::string fname = TableFileName(dbname_, file_number);
- unique_ptr<RandomAccessFile> file;
- unique_ptr<TableReader> table_reader;
- s = env_->NewRandomAccessFile(fname, &file, toptions);
- RecordTick(options_->statistics, NO_FILE_OPENS);
- if (s.ok()) {
- if (options_->advise_random_on_open) {
- file->Hint(RandomAccessFile::RANDOM);
- }
- StopWatch sw(env_, options_->statistics, TABLE_OPEN_IO_MICROS);
- s = options_->table_factory->GetTableReader(*options_, toptions,
- std::move(file), file_size,
- &table_reader);
- }
-
- if (!s.ok()) {
- assert(table_reader == nullptr);
- RecordTick(options_->statistics, NO_FILE_ERRORS);
- // We do not cache error results so that if the error is transient,
- // or somebody repairs the file, we recover automatically.
- } else {
- assert(file.get() == nullptr);
- *handle = cache_->Insert(key, table_reader.release(), 1, &DeleteEntry);
- }
- }
- return s;
-}
-
-Iterator* TableCache::NewIterator(const ReadOptions& options,
- const EnvOptions& toptions,
- uint64_t file_number,
- uint64_t file_size,
- TableReader** table_reader_ptr,
- bool for_compaction) {
- if (table_reader_ptr != nullptr) {
- *table_reader_ptr = nullptr;
- }
-
- Cache::Handle* handle = nullptr;
- Status s = FindTable(toptions, file_number, file_size, &handle,
- nullptr, options.read_tier == kBlockCacheTier);
- if (!s.ok()) {
- return NewErrorIterator(s);
- }
-
- TableReader* table_reader =
- reinterpret_cast<TableReader*>(cache_->Value(handle));
- Iterator* result = table_reader->NewIterator(options);
- result->RegisterCleanup(&UnrefEntry, cache_.get(), handle);
- if (table_reader_ptr != nullptr) {
- *table_reader_ptr = table_reader;
- }
-
- if (for_compaction) {
- table_reader->SetupForCompaction();
- }
-
- return result;
-}
-
-Status TableCache::Get(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
- const Slice& k,
- void* arg,
- bool (*saver)(void*, const Slice&, const Slice&, bool),
- bool* table_io,
- void (*mark_key_may_exist)(void*)) {
- Cache::Handle* handle = nullptr;
- Status s = FindTable(storage_options_, file_number, file_size,
- &handle, table_io,
- options.read_tier == kBlockCacheTier);
- if (s.ok()) {
- TableReader* t =
- reinterpret_cast<TableReader*>(cache_->Value(handle));
- s = t->Get(options, k, arg, saver, mark_key_may_exist);
- cache_->Release(handle);
- } else if (options.read_tier && s.IsIncomplete()) {
- // Couldnt find Table in cache but treat as kFound if no_io set
- (*mark_key_may_exist)(arg);
- return Status::OK();
- }
- return s;
-}
-
-bool TableCache::PrefixMayMatch(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
- const Slice& internal_prefix,
- bool* table_io) {
- Cache::Handle* handle = nullptr;
- Status s = FindTable(storage_options_, file_number,
- file_size, &handle, table_io);
- bool may_match = true;
- if (s.ok()) {
- TableReader* t =
- reinterpret_cast<TableReader*>(cache_->Value(handle));
- may_match = t->PrefixMayMatch(internal_prefix);
- cache_->Release(handle);
- }
- return may_match;
-}
-
-void TableCache::Evict(uint64_t file_number) {
- char buf[sizeof(file_number)];
- EncodeFixed64(buf, file_number);
- cache_->Erase(Slice(buf, sizeof(buf)));
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Thread-safe (provides internal synchronization)
-
-#pragma once
-#include <string>
-#include <stdint.h>
-#include "db/dbformat.h"
-#include "rocksdb/env.h"
-#include "rocksdb/cache.h"
-#include "port/port.h"
-#include "rocksdb/table.h"
-
-namespace rocksdb {
-
-class Env;
-
-class TableCache {
- public:
- TableCache(const std::string& dbname, const Options* options,
- const EnvOptions& storage_options, int entries);
- ~TableCache();
-
- // Return an iterator for the specified file number (the corresponding
- // file length must be exactly "file_size" bytes). If "tableptr" is
- // non-nullptr, also sets "*tableptr" to point to the Table object
- // underlying the returned iterator, or nullptr if no Table object underlies
- // the returned iterator. The returned "*tableptr" object is owned by
- // the cache and should not be deleted, and is valid for as long as the
- // returned iterator is live.
- Iterator* NewIterator(const ReadOptions& options,
- const EnvOptions& toptions,
- uint64_t file_number,
- uint64_t file_size,
- TableReader** table_reader_ptr = nullptr,
- bool for_compaction = false);
-
- // If a seek to internal key "k" in specified file finds an entry,
- // call (*handle_result)(arg, found_key, found_value) repeatedly until
- // it returns false.
- Status Get(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
- const Slice& k,
- void* arg,
- bool (*handle_result)(void*, const Slice&, const Slice&, bool),
- bool* table_io,
- void (*mark_key_may_exist)(void*) = nullptr);
-
- // Determine whether the table may contain the specified prefix. If
- // the table index of blooms are not in memory, this may cause an I/O
- bool PrefixMayMatch(const ReadOptions& options, uint64_t file_number,
- uint64_t file_size, const Slice& internal_prefix,
- bool* table_io);
-
- // Evict any entry for the specified file number
- void Evict(uint64_t file_number);
-
- private:
- Env* const env_;
- const std::string dbname_;
- const Options* options_;
- const EnvOptions& storage_options_;
- std::shared_ptr<Cache> cache_;
-
- Status FindTable(const EnvOptions& toptions, uint64_t file_number,
- uint64_t file_size, Cache::Handle**, bool* table_io=nullptr,
- const bool no_io = false);
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-#include "db/table_stats_collector.h"
-
-#include "db/dbformat.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-Status InternalKeyStatsCollector::Add(const Slice& key, const Slice& value) {
- ParsedInternalKey ikey;
- if (!ParseInternalKey(key, &ikey)) {
- return Status::InvalidArgument("Invalid internal key");
- }
-
- if (ikey.type == ValueType::kTypeDeletion) {
- ++deleted_keys_;
- }
-
- return Status::OK();
-}
-
-Status InternalKeyStatsCollector::Finish(
- TableStats::UserCollectedStats* stats) {
- assert(stats);
- assert(stats->find(InternalKeyTableStatsNames::kDeletedKeys) == stats->end());
- std::string val;
-
- PutVarint64(&val, deleted_keys_);
- stats->insert(std::make_pair(InternalKeyTableStatsNames::kDeletedKeys, val));
-
- return Status::OK();
-}
-
-Status UserKeyTableStatsCollector::Add(const Slice& key, const Slice& value) {
- ParsedInternalKey ikey;
- if (!ParseInternalKey(key, &ikey)) {
- return Status::InvalidArgument("Invalid internal key");
- }
-
- return collector_->Add(ikey.user_key, value);
-}
-
-Status UserKeyTableStatsCollector::Finish(
- TableStats::UserCollectedStats* stats) {
- return collector_->Finish(stats);
-}
-
-const std::string InternalKeyTableStatsNames::kDeletedKeys
- = "rocksdb.deleted.keys";
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// This file defines a collection of statistics collectors.
-#pragma once
-
-#include "rocksdb/table_stats.h"
-
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace rocksdb {
-
-struct InternalKeyTableStatsNames {
- static const std::string kDeletedKeys;
-};
-
-// Collecting the statistics for internal keys. Visible only by internal
-// rocksdb modules.
-class InternalKeyStatsCollector : public TableStatsCollector {
- public:
- virtual Status Add(const Slice& key, const Slice& value);
- virtual Status Finish(TableStats::UserCollectedStats* stats);
- virtual const char* Name() const { return "InternalKeyStatsCollector"; }
-
- private:
- uint64_t deleted_keys_ = 0;
-};
-
-// When rocksdb creates a new table, it will encode all "user keys" into
-// "internal keys", which contains meta information of a given entry.
-//
-// This class extracts user key from the encoded internal key when Add() is
-// invoked.
-class UserKeyTableStatsCollector : public TableStatsCollector {
- public:
- explicit UserKeyTableStatsCollector(TableStatsCollector* collector):
- UserKeyTableStatsCollector(
- std::shared_ptr<TableStatsCollector>(collector)
- ) {
- }
-
- explicit UserKeyTableStatsCollector(
- std::shared_ptr<TableStatsCollector> collector) : collector_(collector) {
- }
- virtual ~UserKeyTableStatsCollector() { }
- virtual Status Add(const Slice& key, const Slice& value);
- virtual Status Finish(TableStats::UserCollectedStats* stats);
- virtual const char* Name() const { return collector_->Name(); }
-
- protected:
- std::shared_ptr<TableStatsCollector> collector_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-#include <map>
-#include <memory>
-#include <string>
-
-#include "db/dbformat.h"
-#include "db/db_impl.h"
-#include "db/table_stats_collector.h"
-#include "rocksdb/table_stats.h"
-#include "rocksdb/table.h"
-#include "util/coding.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-class TableStatsTest {
- private:
- unique_ptr<TableReader> table_reader_;
-};
-
-// TODO(kailiu) the following classes should be moved to some more general
-// places, so that other tests can also make use of them.
-// `FakeWritableFile` and `FakeRandomeAccessFile` bypass the real file system
-// and therefore enable us to quickly setup the tests.
-class FakeWritableFile : public WritableFile {
- public:
- ~FakeWritableFile() { }
-
- const std::string& contents() const { return contents_; }
-
- virtual Status Close() { return Status::OK(); }
- virtual Status Flush() { return Status::OK(); }
- virtual Status Sync() { return Status::OK(); }
-
- virtual Status Append(const Slice& data) {
- contents_.append(data.data(), data.size());
- return Status::OK();
- }
-
- private:
- std::string contents_;
-};
-
-
-class FakeRandomeAccessFile : public RandomAccessFile {
- public:
- explicit FakeRandomeAccessFile(const Slice& contents)
- : contents_(contents.data(), contents.size()) {
- }
-
- virtual ~FakeRandomeAccessFile() { }
-
- uint64_t Size() const { return contents_.size(); }
-
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- if (offset > contents_.size()) {
- return Status::InvalidArgument("invalid Read offset");
- }
- if (offset + n > contents_.size()) {
- n = contents_.size() - offset;
- }
- memcpy(scratch, &contents_[offset], n);
- *result = Slice(scratch, n);
- return Status::OK();
- }
-
- private:
- std::string contents_;
-};
-
-
-class DumbLogger : public Logger {
- public:
- virtual void Logv(const char* format, va_list ap) { }
- virtual size_t GetLogFileSize() const { return 0; }
-};
-
-// Utilities test functions
-void MakeBuilder(
- Options options,
- std::unique_ptr<FakeWritableFile>* writable,
- std::unique_ptr<TableBuilder>* builder) {
- writable->reset(new FakeWritableFile);
- if (!options.flush_block_policy_factory) {
- options.SetUpDefaultFlushBlockPolicyFactory();
- }
- builder->reset(
- options.table_factory->GetTableBuilder(options, writable->get(),
- options.compression));
-}
-
-void OpenTable(
- const Options& options,
- const std::string& contents,
- std::unique_ptr<TableReader>* table_reader) {
- std::unique_ptr<RandomAccessFile> file(new FakeRandomeAccessFile(contents));
- auto s = options.table_factory->GetTableReader(
- options,
- EnvOptions(),
- std::move(file),
- contents.size(),
- table_reader
- );
- ASSERT_OK(s);
-}
-
-// Collects keys that starts with "A" in a table.
-class RegularKeysStartWithA: public TableStatsCollector {
- public:
- const char* Name() const { return "RegularKeysStartWithA"; }
-
- Status Finish(TableStats::UserCollectedStats* stats) {
- std::string encoded;
- PutVarint32(&encoded, count_);
- *stats = TableStats::UserCollectedStats {
- { "TableStatsTest", "Rocksdb" },
- { "Count", encoded }
- };
- return Status::OK();
- }
-
- Status Add(const Slice& user_key, const Slice& value) {
- // simply asssume all user keys are not empty.
- if (user_key.data()[0] == 'A') {
- ++count_;
- }
- return Status::OK();
- }
-
- private:
- uint32_t count_ = 0;
-};
-
-TEST(TableStatsTest, CustomizedTableStatsCollector) {
- Options options;
-
- // make sure the entries will be inserted with order.
- std::map<std::string, std::string> kvs = {
- {"About", "val5"}, // starts with 'A'
- {"Abstract", "val2"}, // starts with 'A'
- {"Around", "val7"}, // starts with 'A'
- {"Beyond", "val3"},
- {"Builder", "val1"},
- {"Cancel", "val4"},
- {"Find", "val6"},
- };
-
- // Test stats collectors with internal keys or regular keys
- for (bool encode_as_internal : { true, false }) {
- // -- Step 1: build table
- auto collector = new RegularKeysStartWithA();
- if (encode_as_internal) {
- options.table_stats_collectors = {
- std::make_shared<UserKeyTableStatsCollector>(collector)
- };
- } else {
- options.table_stats_collectors.resize(1);
- options.table_stats_collectors[0].reset(collector);
- }
- std::unique_ptr<TableBuilder> builder;
- std::unique_ptr<FakeWritableFile> writable;
- MakeBuilder(options, &writable, &builder);
-
- for (const auto& kv : kvs) {
- if (encode_as_internal) {
- InternalKey ikey(kv.first, 0, ValueType::kTypeValue);
- builder->Add(ikey.Encode(), kv.second);
- } else {
- builder->Add(kv.first, kv.second);
- }
- }
- ASSERT_OK(builder->Finish());
-
- // -- Step 2: Open table
- std::unique_ptr<TableReader> table_reader;
- OpenTable(options, writable->contents(), &table_reader);
- const auto& stats = table_reader->GetTableStats().user_collected_stats;
-
- ASSERT_EQ("Rocksdb", stats.at("TableStatsTest"));
-
- uint32_t starts_with_A = 0;
- Slice key(stats.at("Count"));
- ASSERT_TRUE(GetVarint32(&key, &starts_with_A));
- ASSERT_EQ(3u, starts_with_A);
- }
-}
-
-TEST(TableStatsTest, InternalKeyStatsCollector) {
- InternalKey keys[] = {
- InternalKey("A", 0, ValueType::kTypeValue),
- InternalKey("B", 0, ValueType::kTypeValue),
- InternalKey("C", 0, ValueType::kTypeValue),
- InternalKey("W", 0, ValueType::kTypeDeletion),
- InternalKey("X", 0, ValueType::kTypeDeletion),
- InternalKey("Y", 0, ValueType::kTypeDeletion),
- InternalKey("Z", 0, ValueType::kTypeDeletion),
- };
-
- for (bool sanitized : { false, true }) {
- std::unique_ptr<TableBuilder> builder;
- std::unique_ptr<FakeWritableFile> writable;
- Options options;
- if (sanitized) {
- options.table_stats_collectors = {
- std::make_shared<RegularKeysStartWithA>()
- };
- // with sanitization, even regular stats collector will be able to
- // handle internal keys.
- auto comparator = options.comparator;
- // HACK: Set options.info_log to avoid writing log in
- // SanitizeOptions().
- options.info_log = std::make_shared<DumbLogger>();
- options = SanitizeOptions(
- "db", // just a place holder
- nullptr, // with skip internal key comparator
- nullptr, // don't care filter policy
- options
- );
- options.comparator = comparator;
- } else {
- options.table_stats_collectors = {
- std::make_shared<InternalKeyStatsCollector>()
- };
- }
-
- MakeBuilder(options, &writable, &builder);
- for (const auto& k : keys) {
- builder->Add(k.Encode(), "val");
- }
-
- ASSERT_OK(builder->Finish());
-
- std::unique_ptr<TableReader> table_reader;
- OpenTable(options, writable->contents(), &table_reader);
- const auto& stats = table_reader->GetTableStats().user_collected_stats;
-
- uint64_t deleted = 0;
- Slice key(stats.at(InternalKeyTableStatsNames::kDeletedKeys));
- ASSERT_TRUE(GetVarint64(&key, &deleted));
- ASSERT_EQ(4u, deleted);
-
- if (sanitized) {
- uint32_t starts_with_A = 0;
- Slice key(stats.at("Count"));
- ASSERT_TRUE(GetVarint32(&key, &starts_with_A));
- ASSERT_EQ(1u, starts_with_A);
- }
- }
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "db/transaction_log_impl.h"
-#include "db/write_batch_internal.h"
-
-namespace rocksdb {
-
-TransactionLogIteratorImpl::TransactionLogIteratorImpl(
- const std::string& dir,
- const Options* options,
- const EnvOptions& soptions,
- const SequenceNumber seq,
- std::unique_ptr<VectorLogPtr> files,
- DBImpl const * const dbimpl) :
- dir_(dir),
- options_(options),
- soptions_(soptions),
- startingSequenceNumber_(seq),
- files_(std::move(files)),
- started_(false),
- isValid_(false),
- currentFileIndex_(0),
- currentBatchSeq_(0),
- currentLastSeq_(0),
- dbimpl_(dbimpl) {
- assert(files_ != nullptr);
- assert(dbimpl_ != nullptr);
-
- reporter_.env = options_->env;
- reporter_.info_log = options_->info_log.get();
- SeekToStartSequence(); // Seek till starting sequence
-}
-
-Status TransactionLogIteratorImpl::OpenLogFile(
- const LogFile* logFile,
- unique_ptr<SequentialFile>* file) {
- Env* env = options_->env;
- if (logFile->Type() == kArchivedLogFile) {
- std::string fname = ArchivedLogFileName(dir_, logFile->LogNumber());
- return env->NewSequentialFile(fname, file, soptions_);
- } else {
- std::string fname = LogFileName(dir_, logFile->LogNumber());
- Status status = env->NewSequentialFile(fname, file, soptions_);
- if (!status.ok()) {
- // If cannot open file in DB directory.
- // Try the archive dir, as it could have moved in the meanwhile.
- fname = ArchivedLogFileName(dir_, logFile->LogNumber());
- status = env->NewSequentialFile(fname, file, soptions_);
- if (!status.ok()) {
- return Status::IOError("Requested file not present in the dir");
- }
- }
- return status;
- }
-}
-
-BatchResult TransactionLogIteratorImpl::GetBatch() {
- assert(isValid_); // cannot call in a non valid state.
- BatchResult result;
- result.sequence = currentBatchSeq_;
- result.writeBatchPtr = std::move(currentBatch_);
- return result;
-}
-
-Status TransactionLogIteratorImpl::status() {
- return currentStatus_;
-}
-
-bool TransactionLogIteratorImpl::Valid() {
- return started_ && isValid_;
-}
-
-bool TransactionLogIteratorImpl::RestrictedRead(
- Slice* record,
- std::string* scratch) {
- // Don't read if no more complete entries to read from logs
- if (currentLastSeq_ >= dbimpl_->GetLatestSequenceNumber()) {
- return false;
- }
- return currentLogReader_->ReadRecord(record, scratch);
-}
-
-void TransactionLogIteratorImpl::SeekToStartSequence(
- uint64_t startFileIndex,
- bool strict) {
- std::string scratch;
- Slice record;
- started_ = false;
- isValid_ = false;
- if (files_->size() <= startFileIndex) {
- return;
- }
- Status s = OpenLogReader(files_->at(startFileIndex).get());
- if (!s.ok()) {
- currentStatus_ = s;
- return;
- }
- while (RestrictedRead(&record, &scratch)) {
- if (record.size() < 12) {
- reporter_.Corruption(
- record.size(), Status::Corruption("very small log record"));
- continue;
- }
- UpdateCurrentWriteBatch(record);
- if (currentLastSeq_ >= startingSequenceNumber_) {
- if (strict && currentBatchSeq_ != startingSequenceNumber_) {
- currentStatus_ = Status::Corruption("Gap in sequence number. Could not "
- "seek to required sequence number");
- reporter_.Info(currentStatus_.ToString().c_str());
- return;
- } else if (strict) {
- reporter_.Info("Could seek required sequence number. Iterator will "
- "continue.");
- }
- isValid_ = true;
- started_ = true; // set started_ as we could seek till starting sequence
- return;
- } else {
- isValid_ = false;
- }
- }
-
- // Could not find start sequence in first file. Normally this must be the
- // only file. Otherwise log the error and let the iterator return next entry
- // If strict is set, we want to seek exactly till the start sequence and it
- // should have been present in the file we scanned above
- if (strict) {
- currentStatus_ = Status::Corruption("Gap in sequence number. Could not "
- "seek to required sequence number");
- reporter_.Info(currentStatus_.ToString().c_str());
- } else if (files_->size() != 1) {
- currentStatus_ = Status::Corruption("Start sequence was not found, "
- "skipping to the next available");
- reporter_.Info(currentStatus_.ToString().c_str());
- // Let NextImpl find the next available entry. started_ remains false
- // because we don't want to check for gaps while moving to start sequence
- NextImpl(true);
- }
-}
-
-void TransactionLogIteratorImpl::Next() {
- return NextImpl(false);
-}
-
-void TransactionLogIteratorImpl::NextImpl(bool internal) {
- std::string scratch;
- Slice record;
- isValid_ = false;
- if (!internal && !started_) {
- // Runs every time until we can seek to the start sequence
- return SeekToStartSequence();
- }
- while(true) {
- assert(currentLogReader_);
- if (currentLogReader_->IsEOF()) {
- currentLogReader_->UnmarkEOF();
- }
- while (RestrictedRead(&record, &scratch)) {
- if (record.size() < 12) {
- reporter_.Corruption(
- record.size(), Status::Corruption("very small log record"));
- continue;
- } else {
- // started_ should be true if called by application
- assert(internal || started_);
- // started_ should be false if called internally
- assert(!internal || !started_);
- UpdateCurrentWriteBatch(record);
- if (internal && !started_) {
- started_ = true;
- }
- return;
- }
- }
-
- // Open the next file
- if (currentFileIndex_ < files_->size() - 1) {
- ++currentFileIndex_;
- Status status =OpenLogReader(files_->at(currentFileIndex_).get());
- if (!status.ok()) {
- isValid_ = false;
- currentStatus_ = status;
- return;
- }
- } else {
- isValid_ = false;
- if (currentLastSeq_ == dbimpl_->GetLatestSequenceNumber()) {
- currentStatus_ = Status::OK();
- } else {
- currentStatus_ = Status::IOError("NO MORE DATA LEFT");
- }
- return;
- }
- }
-}
-
-bool TransactionLogIteratorImpl::IsBatchExpected(
- const WriteBatch* batch,
- const SequenceNumber expectedSeq) {
- assert(batch);
- SequenceNumber batchSeq = WriteBatchInternal::Sequence(batch);
- if (batchSeq != expectedSeq) {
- char buf[200];
- snprintf(buf, sizeof(buf),
- "Discontinuity in log records. Got seq=%lu, Expected seq=%lu, "
- "Last flushed seq=%lu.Log iterator will reseek the correct "
- "batch.",
- (unsigned long)batchSeq,
- (unsigned long)expectedSeq,
- (unsigned long)dbimpl_->GetLatestSequenceNumber());
- reporter_.Info(buf);
- return false;
- }
- return true;
-}
-
-void TransactionLogIteratorImpl::UpdateCurrentWriteBatch(const Slice& record) {
- std::unique_ptr<WriteBatch> batch(new WriteBatch());
- WriteBatchInternal::SetContents(batch.get(), record);
-
- SequenceNumber expectedSeq = currentLastSeq_ + 1;
- // If the iterator has started, then confirm that we get continuous batches
- if (started_ && !IsBatchExpected(batch.get(), expectedSeq)) {
- // Seek to the batch having expected sequence number
- if (expectedSeq < files_->at(currentFileIndex_)->StartSequence()) {
- // Expected batch must lie in the previous log file
- // Avoid underflow.
- if (currentFileIndex_ != 0) {
- currentFileIndex_--;
- }
- }
- startingSequenceNumber_ = expectedSeq;
- // currentStatus_ will be set to Ok if reseek succeeds
- currentStatus_ = Status::NotFound("Gap in sequence numbers");
- return SeekToStartSequence(currentFileIndex_, true);
- }
-
- currentBatchSeq_ = WriteBatchInternal::Sequence(batch.get());
- currentLastSeq_ = currentBatchSeq_ +
- WriteBatchInternal::Count(batch.get()) - 1;
- // currentBatchSeq_ can only change here
- assert(currentLastSeq_ <= dbimpl_->GetLatestSequenceNumber());
-
- currentBatch_ = move(batch);
- isValid_ = true;
- currentStatus_ = Status::OK();
-}
-
-Status TransactionLogIteratorImpl::OpenLogReader(const LogFile* logFile) {
- unique_ptr<SequentialFile> file;
- Status status = OpenLogFile(logFile, &file);
- if (!status.ok()) {
- return status;
- }
- assert(file);
- currentLogReader_.reset(
- new log::Reader(std::move(file), &reporter_, true, 0)
- );
- return Status::OK();
-}
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-#include <vector>
-
-#include "rocksdb/env.h"
-#include "rocksdb/options.h"
-#include "rocksdb/types.h"
-#include "rocksdb/transaction_log.h"
-#include "db/db_impl.h"
-#include "db/log_reader.h"
-#include "db/filename.h"
-
-namespace rocksdb {
-
-struct LogReporter : public log::Reader::Reporter {
- Env* env;
- Logger* info_log;
- virtual void Corruption(size_t bytes, const Status& s) {
- Log(info_log, "dropping %zu bytes; %s", bytes, s.ToString().c_str());
- }
- virtual void Info(const char* s) {
- Log(info_log, "%s", s);
- }
-};
-
-class LogFileImpl : public LogFile {
- public:
- LogFileImpl(uint64_t logNum, WalFileType logType, SequenceNumber startSeq,
- uint64_t sizeBytes) :
- logNumber_(logNum),
- type_(logType),
- startSequence_(startSeq),
- sizeFileBytes_(sizeBytes) {
- }
-
- std::string PathName() const {
- if (type_ == kArchivedLogFile) {
- return ArchivedLogFileName("", logNumber_);
- }
- return LogFileName("", logNumber_);
- }
-
- uint64_t LogNumber() const { return logNumber_; }
-
- WalFileType Type() const { return type_; }
-
- SequenceNumber StartSequence() const { return startSequence_; }
-
- uint64_t SizeFileBytes() const { return sizeFileBytes_; }
-
- bool operator < (const LogFile& that) const {
- return LogNumber() < that.LogNumber();
- }
-
- private:
- uint64_t logNumber_;
- WalFileType type_;
- SequenceNumber startSequence_;
- uint64_t sizeFileBytes_;
-
-};
-
-class TransactionLogIteratorImpl : public TransactionLogIterator {
- public:
- TransactionLogIteratorImpl(const std::string& dir,
- const Options* options,
- const EnvOptions& soptions,
- const SequenceNumber seqNum,
- std::unique_ptr<VectorLogPtr> files,
- DBImpl const * const dbimpl);
-
- virtual bool Valid();
-
- virtual void Next();
-
- virtual Status status();
-
- virtual BatchResult GetBatch();
-
- private:
- const std::string& dir_;
- const Options* options_;
- const EnvOptions& soptions_;
- SequenceNumber startingSequenceNumber_;
- std::unique_ptr<VectorLogPtr> files_;
- bool started_;
- bool isValid_; // not valid when it starts of.
- Status currentStatus_;
- size_t currentFileIndex_;
- std::unique_ptr<WriteBatch> currentBatch_;
- unique_ptr<log::Reader> currentLogReader_;
- Status OpenLogFile(const LogFile* logFile, unique_ptr<SequentialFile>* file);
- LogReporter reporter_;
- SequenceNumber currentBatchSeq_; // sequence number at start of current batch
- SequenceNumber currentLastSeq_; // last sequence in the current batch
- DBImpl const * const dbimpl_; // The db on whose log files this iterates
-
- // Reads from transaction log only if the writebatch record has been written
- bool RestrictedRead(Slice* record, std::string* scratch);
- // Seeks to startingSequenceNumber reading from startFileIndex in files_.
- // If strict is set,then must get a batch starting with startingSequenceNumber
- void SeekToStartSequence(uint64_t startFileIndex = 0, bool strict = false);
- // Implementation of Next. SeekToStartSequence calls it internally with
- // internal=true to let it find next entry even if it has to jump gaps because
- // the iterator may start off from the first available entry but promises to
- // be continuous after that
- void NextImpl(bool internal = false);
- // Check if batch is expected, else return false
- bool IsBatchExpected(const WriteBatch* batch, SequenceNumber expectedSeq);
- // Update current batch if a continuous batch is found, else return false
- void UpdateCurrentWriteBatch(const Slice& record);
- Status OpenLogReader(const LogFile* file);
-};
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/version_edit.h"
-
-#include "db/version_set.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-// Tag numbers for serialized VersionEdit. These numbers are written to
-// disk and should not be changed.
-enum Tag {
- kComparator = 1,
- kLogNumber = 2,
- kNextFileNumber = 3,
- kLastSequence = 4,
- kCompactPointer = 5,
- kDeletedFile = 6,
- kNewFile = 7,
- // 8 was used for large value refs
- kPrevLogNumber = 9,
-
- // these are new formats divergent from open source leveldb
- kNewFile2 = 100 // store smallest & largest seqno
-};
-
-void VersionEdit::Clear() {
- comparator_.clear();
- log_number_ = 0;
- prev_log_number_ = 0;
- last_sequence_ = 0;
- next_file_number_ = 0;
- has_comparator_ = false;
- has_log_number_ = false;
- has_prev_log_number_ = false;
- has_next_file_number_ = false;
- has_last_sequence_ = false;
- deleted_files_.clear();
- new_files_.clear();
-}
-
-void VersionEdit::EncodeTo(std::string* dst) const {
- if (has_comparator_) {
- PutVarint32(dst, kComparator);
- PutLengthPrefixedSlice(dst, comparator_);
- }
- if (has_log_number_) {
- PutVarint32(dst, kLogNumber);
- PutVarint64(dst, log_number_);
- }
- if (has_prev_log_number_) {
- PutVarint32(dst, kPrevLogNumber);
- PutVarint64(dst, prev_log_number_);
- }
- if (has_next_file_number_) {
- PutVarint32(dst, kNextFileNumber);
- PutVarint64(dst, next_file_number_);
- }
- if (has_last_sequence_) {
- PutVarint32(dst, kLastSequence);
- PutVarint64(dst, last_sequence_);
- }
-
- for (size_t i = 0; i < compact_pointers_.size(); i++) {
- PutVarint32(dst, kCompactPointer);
- PutVarint32(dst, compact_pointers_[i].first); // level
- PutLengthPrefixedSlice(dst, compact_pointers_[i].second.Encode());
- }
-
- for (DeletedFileSet::const_iterator iter = deleted_files_.begin();
- iter != deleted_files_.end();
- ++iter) {
- PutVarint32(dst, kDeletedFile);
- PutVarint32(dst, iter->first); // level
- PutVarint64(dst, iter->second); // file number
- }
-
- for (size_t i = 0; i < new_files_.size(); i++) {
- const FileMetaData& f = new_files_[i].second;
- PutVarint32(dst, kNewFile2);
- PutVarint32(dst, new_files_[i].first); // level
- PutVarint64(dst, f.number);
- PutVarint64(dst, f.file_size);
- PutLengthPrefixedSlice(dst, f.smallest.Encode());
- PutLengthPrefixedSlice(dst, f.largest.Encode());
- PutVarint64(dst, f.smallest_seqno);
- PutVarint64(dst, f.largest_seqno);
- }
-}
-
-static bool GetInternalKey(Slice* input, InternalKey* dst) {
- Slice str;
- if (GetLengthPrefixedSlice(input, &str)) {
- dst->DecodeFrom(str);
- return true;
- } else {
- return false;
- }
-}
-
-bool VersionEdit::GetLevel(Slice* input, int* level, const char** msg) {
- uint32_t v;
- if (GetVarint32(input, &v) &&
- (int)v < number_levels_) {
- *level = v;
- return true;
- } else {
- if ((int)v >= number_levels_) {
- *msg = "db already has more levels than options.num_levels";
- }
- return false;
- }
-}
-
-Status VersionEdit::DecodeFrom(const Slice& src) {
- Clear();
- Slice input = src;
- const char* msg = nullptr;
- uint32_t tag;
-
- // Temporary storage for parsing
- int level;
- uint64_t number;
- FileMetaData f;
- Slice str;
- InternalKey key;
-
- while (msg == nullptr && GetVarint32(&input, &tag)) {
- switch (tag) {
- case kComparator:
- if (GetLengthPrefixedSlice(&input, &str)) {
- comparator_ = str.ToString();
- has_comparator_ = true;
- } else {
- msg = "comparator name";
- }
- break;
-
- case kLogNumber:
- if (GetVarint64(&input, &log_number_)) {
- has_log_number_ = true;
- } else {
- msg = "log number";
- }
- break;
-
- case kPrevLogNumber:
- if (GetVarint64(&input, &prev_log_number_)) {
- has_prev_log_number_ = true;
- } else {
- msg = "previous log number";
- }
- break;
-
- case kNextFileNumber:
- if (GetVarint64(&input, &next_file_number_)) {
- has_next_file_number_ = true;
- } else {
- msg = "next file number";
- }
- break;
-
- case kLastSequence:
- if (GetVarint64(&input, &last_sequence_)) {
- has_last_sequence_ = true;
- } else {
- msg = "last sequence number";
- }
- break;
-
- case kCompactPointer:
- if (GetLevel(&input, &level, &msg) &&
- GetInternalKey(&input, &key)) {
- compact_pointers_.push_back(std::make_pair(level, key));
- } else {
- if (!msg) {
- msg = "compaction pointer";
- }
- }
- break;
-
- case kDeletedFile:
- if (GetLevel(&input, &level, &msg) &&
- GetVarint64(&input, &number)) {
- deleted_files_.insert(std::make_pair(level, number));
- } else {
- if (!msg) {
- msg = "deleted file";
- }
- }
- break;
-
- case kNewFile:
- if (GetLevel(&input, &level, &msg) &&
- GetVarint64(&input, &f.number) &&
- GetVarint64(&input, &f.file_size) &&
- GetInternalKey(&input, &f.smallest) &&
- GetInternalKey(&input, &f.largest)) {
- new_files_.push_back(std::make_pair(level, f));
- } else {
- if (!msg) {
- msg = "new-file entry";
- }
- }
- break;
-
- case kNewFile2:
- if (GetLevel(&input, &level, &msg) &&
- GetVarint64(&input, &f.number) &&
- GetVarint64(&input, &f.file_size) &&
- GetInternalKey(&input, &f.smallest) &&
- GetInternalKey(&input, &f.largest) &&
- GetVarint64(&input, &f.smallest_seqno) &&
- GetVarint64(&input, &f.largest_seqno) ) {
- new_files_.push_back(std::make_pair(level, f));
- } else {
- if (!msg) {
- msg = "new-file2 entry";
- }
- }
- break;
-
- default:
- msg = "unknown tag";
- break;
- }
- }
-
- if (msg == nullptr && !input.empty()) {
- msg = "invalid tag";
- }
-
- Status result;
- if (msg != nullptr) {
- result = Status::Corruption("VersionEdit", msg);
- }
- return result;
-}
-
-std::string VersionEdit::DebugString(bool hex_key) const {
- std::string r;
- r.append("VersionEdit {");
- if (has_comparator_) {
- r.append("\n Comparator: ");
- r.append(comparator_);
- }
- if (has_log_number_) {
- r.append("\n LogNumber: ");
- AppendNumberTo(&r, log_number_);
- }
- if (has_prev_log_number_) {
- r.append("\n PrevLogNumber: ");
- AppendNumberTo(&r, prev_log_number_);
- }
- if (has_next_file_number_) {
- r.append("\n NextFile: ");
- AppendNumberTo(&r, next_file_number_);
- }
- if (has_last_sequence_) {
- r.append("\n LastSeq: ");
- AppendNumberTo(&r, last_sequence_);
- }
- for (size_t i = 0; i < compact_pointers_.size(); i++) {
- r.append("\n CompactPointer: ");
- AppendNumberTo(&r, compact_pointers_[i].first);
- r.append(" ");
- r.append(compact_pointers_[i].second.DebugString(hex_key));
- }
- for (DeletedFileSet::const_iterator iter = deleted_files_.begin();
- iter != deleted_files_.end();
- ++iter) {
- r.append("\n DeleteFile: ");
- AppendNumberTo(&r, iter->first);
- r.append(" ");
- AppendNumberTo(&r, iter->second);
- }
- for (size_t i = 0; i < new_files_.size(); i++) {
- const FileMetaData& f = new_files_[i].second;
- r.append("\n AddFile: ");
- AppendNumberTo(&r, new_files_[i].first);
- r.append(" ");
- AppendNumberTo(&r, f.number);
- r.append(" ");
- AppendNumberTo(&r, f.file_size);
- r.append(" ");
- r.append(f.smallest.DebugString(hex_key));
- r.append(" .. ");
- r.append(f.largest.DebugString(hex_key));
- }
- r.append("\n}\n");
- return r;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <set>
-#include <utility>
-#include <vector>
-#include "db/dbformat.h"
-
-namespace rocksdb {
-
-class VersionSet;
-
-struct FileMetaData {
- int refs;
- int allowed_seeks; // Seeks allowed until compaction
- uint64_t number;
- uint64_t file_size; // File size in bytes
- InternalKey smallest; // Smallest internal key served by table
- InternalKey largest; // Largest internal key served by table
- bool being_compacted; // Is this file undergoing compaction?
- SequenceNumber smallest_seqno;// The smallest seqno in this file
- SequenceNumber largest_seqno; // The largest seqno in this file
-
- FileMetaData() : refs(0), allowed_seeks(1 << 30), file_size(0),
- being_compacted(false) { }
-};
-
-class VersionEdit {
- public:
- explicit VersionEdit(int number_levels) :
- number_levels_(number_levels) {
- Clear();
- }
- ~VersionEdit() { }
-
- void Clear();
-
- void SetComparatorName(const Slice& name) {
- has_comparator_ = true;
- comparator_ = name.ToString();
- }
- void SetLogNumber(uint64_t num) {
- has_log_number_ = true;
- log_number_ = num;
- }
- void SetPrevLogNumber(uint64_t num) {
- has_prev_log_number_ = true;
- prev_log_number_ = num;
- }
- void SetNextFile(uint64_t num) {
- has_next_file_number_ = true;
- next_file_number_ = num;
- }
- void SetLastSequence(SequenceNumber seq) {
- has_last_sequence_ = true;
- last_sequence_ = seq;
- }
- void SetCompactPointer(int level, const InternalKey& key) {
- compact_pointers_.push_back(std::make_pair(level, key));
- }
-
- // Add the specified file at the specified number.
- // REQUIRES: This version has not been saved (see VersionSet::SaveTo)
- // REQUIRES: "smallest" and "largest" are smallest and largest keys in file
- void AddFile(int level, uint64_t file,
- uint64_t file_size,
- const InternalKey& smallest,
- const InternalKey& largest,
- const SequenceNumber& smallest_seqno,
- const SequenceNumber& largest_seqno) {
- FileMetaData f;
- f.number = file;
- f.file_size = file_size;
- f.smallest = smallest;
- f.largest = largest;
- f.smallest_seqno = smallest_seqno;
- f.largest_seqno = largest_seqno;
- assert(smallest_seqno <= largest_seqno);
- new_files_.push_back(std::make_pair(level, f));
- }
-
- // Delete the specified "file" from the specified "level".
- void DeleteFile(int level, uint64_t file) {
- deleted_files_.insert(std::make_pair(level, file));
- }
-
- // Number of edits
- int NumEntries() {
- return new_files_.size() + deleted_files_.size();
- }
-
- void EncodeTo(std::string* dst) const;
- Status DecodeFrom(const Slice& src);
-
- std::string DebugString(bool hex_key = false) const;
-
- private:
- friend class VersionSet;
-
- typedef std::set< std::pair<int, uint64_t> > DeletedFileSet;
-
- bool GetLevel(Slice* input, int* level, const char** msg);
-
- int number_levels_;
- std::string comparator_;
- uint64_t log_number_;
- uint64_t prev_log_number_;
- uint64_t next_file_number_;
- SequenceNumber last_sequence_;
- bool has_comparator_;
- bool has_log_number_;
- bool has_prev_log_number_;
- bool has_next_file_number_;
- bool has_last_sequence_;
-
- std::vector< std::pair<int, InternalKey> > compact_pointers_;
- DeletedFileSet deleted_files_;
- std::vector< std::pair<int, FileMetaData> > new_files_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/version_edit.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-static void TestEncodeDecode(const VersionEdit& edit) {
- std::string encoded, encoded2;
- edit.EncodeTo(&encoded);
- VersionEdit parsed(7);
- Status s = parsed.DecodeFrom(encoded);
- ASSERT_TRUE(s.ok()) << s.ToString();
- parsed.EncodeTo(&encoded2);
- ASSERT_EQ(encoded, encoded2);
-}
-
-class VersionEditTest { };
-
-TEST(VersionEditTest, EncodeDecode) {
- static const uint64_t kBig = 1ull << 50;
-
- VersionEdit edit(7);
- for (int i = 0; i < 4; i++) {
- TestEncodeDecode(edit);
- edit.AddFile(3, kBig + 300 + i, kBig + 400 + i,
- InternalKey("foo", kBig + 500 + i, kTypeValue),
- InternalKey("zoo", kBig + 600 + i, kTypeDeletion),
- kBig + 500 + i,
- kBig + 600 + i);
- edit.DeleteFile(4, kBig + 700 + i);
- edit.SetCompactPointer(i, InternalKey("x", kBig + 900 + i, kTypeValue));
- }
-
- edit.SetComparatorName("foo");
- edit.SetLogNumber(kBig + 100);
- edit.SetNextFile(kBig + 200);
- edit.SetLastSequence(kBig + 1000);
- TestEncodeDecode(edit);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/version_set.h"
-
-#include <algorithm>
-#include <climits>
-#include <stdio.h>
-#include "db/filename.h"
-#include "db/log_reader.h"
-#include "db/log_writer.h"
-#include "db/memtable.h"
-#include "db/table_cache.h"
-#include "rocksdb/env.h"
-#include "rocksdb/merge_operator.h"
-#include "rocksdb/table.h"
-#include "table/merger.h"
-#include "table/two_level_iterator.h"
-#include "util/coding.h"
-#include "util/logging.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-static uint64_t TotalFileSize(const std::vector<FileMetaData*>& files) {
- uint64_t sum = 0;
- for (size_t i = 0; i < files.size() && files[i]; i++) {
- sum += files[i]->file_size;
- }
- return sum;
-}
-
-Version::~Version() {
- assert(refs_ == 0);
-
- // Remove from linked list
- prev_->next_ = next_;
- next_->prev_ = prev_;
-
- // Drop references to files
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- for (size_t i = 0; i < files_[level].size(); i++) {
- FileMetaData* f = files_[level][i];
- assert(f->refs > 0);
- f->refs--;
- if (f->refs <= 0) {
- vset_->obsolete_files_.push_back(f);
- }
- }
- }
- delete[] files_;
-}
-
-int FindFile(const InternalKeyComparator& icmp,
- const std::vector<FileMetaData*>& files,
- const Slice& key) {
- uint32_t left = 0;
- uint32_t right = files.size();
- while (left < right) {
- uint32_t mid = (left + right) / 2;
- const FileMetaData* f = files[mid];
- if (icmp.InternalKeyComparator::Compare(f->largest.Encode(), key) < 0) {
- // Key at "mid.largest" is < "target". Therefore all
- // files at or before "mid" are uninteresting.
- left = mid + 1;
- } else {
- // Key at "mid.largest" is >= "target". Therefore all files
- // after "mid" are uninteresting.
- right = mid;
- }
- }
- return right;
-}
-
-static bool AfterFile(const Comparator* ucmp,
- const Slice* user_key, const FileMetaData* f) {
- // nullptr user_key occurs before all keys and is therefore never after *f
- return (user_key != nullptr &&
- ucmp->Compare(*user_key, f->largest.user_key()) > 0);
-}
-
-static bool BeforeFile(const Comparator* ucmp,
- const Slice* user_key, const FileMetaData* f) {
- // nullptr user_key occurs after all keys and is therefore never before *f
- return (user_key != nullptr &&
- ucmp->Compare(*user_key, f->smallest.user_key()) < 0);
-}
-
-bool SomeFileOverlapsRange(
- const InternalKeyComparator& icmp,
- bool disjoint_sorted_files,
- const std::vector<FileMetaData*>& files,
- const Slice* smallest_user_key,
- const Slice* largest_user_key) {
- const Comparator* ucmp = icmp.user_comparator();
- if (!disjoint_sorted_files) {
- // Need to check against all files
- for (size_t i = 0; i < files.size(); i++) {
- const FileMetaData* f = files[i];
- if (AfterFile(ucmp, smallest_user_key, f) ||
- BeforeFile(ucmp, largest_user_key, f)) {
- // No overlap
- } else {
- return true; // Overlap
- }
- }
- return false;
- }
-
- // Binary search over file list
- uint32_t index = 0;
- if (smallest_user_key != nullptr) {
- // Find the earliest possible internal key for smallest_user_key
- InternalKey small(*smallest_user_key, kMaxSequenceNumber,kValueTypeForSeek);
- index = FindFile(icmp, files, small.Encode());
- }
-
- if (index >= files.size()) {
- // beginning of range is after all files, so no overlap.
- return false;
- }
-
- return !BeforeFile(ucmp, largest_user_key, files[index]);
-}
-
-// An internal iterator. For a given version/level pair, yields
-// information about the files in the level. For a given entry, key()
-// is the largest key that occurs in the file, and value() is an
-// 16-byte value containing the file number and file size, both
-// encoded using EncodeFixed64.
-class Version::LevelFileNumIterator : public Iterator {
- public:
- LevelFileNumIterator(const InternalKeyComparator& icmp,
- const std::vector<FileMetaData*>* flist)
- : icmp_(icmp),
- flist_(flist),
- index_(flist->size()) { // Marks as invalid
- }
- virtual bool Valid() const {
- return index_ < flist_->size();
- }
- virtual void Seek(const Slice& target) {
- index_ = FindFile(icmp_, *flist_, target);
- }
- virtual void SeekToFirst() { index_ = 0; }
- virtual void SeekToLast() {
- index_ = flist_->empty() ? 0 : flist_->size() - 1;
- }
- virtual void Next() {
- assert(Valid());
- index_++;
- }
- virtual void Prev() {
- assert(Valid());
- if (index_ == 0) {
- index_ = flist_->size(); // Marks as invalid
- } else {
- index_--;
- }
- }
- Slice key() const {
- assert(Valid());
- return (*flist_)[index_]->largest.Encode();
- }
- Slice value() const {
- assert(Valid());
- EncodeFixed64(value_buf_, (*flist_)[index_]->number);
- EncodeFixed64(value_buf_+8, (*flist_)[index_]->file_size);
- return Slice(value_buf_, sizeof(value_buf_));
- }
- virtual Status status() const { return Status::OK(); }
- private:
- const InternalKeyComparator icmp_;
- const std::vector<FileMetaData*>* const flist_;
- uint32_t index_;
-
- // Backing store for value(). Holds the file number and size.
- mutable char value_buf_[16];
-};
-
-static Iterator* GetFileIterator(void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- const Slice& file_value,
- bool for_compaction) {
- TableCache* cache = reinterpret_cast<TableCache*>(arg);
- if (file_value.size() != 16) {
- return NewErrorIterator(
- Status::Corruption("FileReader invoked with unexpected value"));
- } else {
- ReadOptions options_copy;
- if (options.prefix) {
- // suppress prefix filtering since we have already checked the
- // filters once at this point
- options_copy = options;
- options_copy.prefix = nullptr;
- }
- return cache->NewIterator(options.prefix ? options_copy : options,
- soptions,
- DecodeFixed64(file_value.data()),
- DecodeFixed64(file_value.data() + 8),
- nullptr /* don't need reference to table*/,
- for_compaction);
- }
-}
-
-bool Version::PrefixMayMatch(const ReadOptions& options,
- const EnvOptions& soptions,
- const Slice& internal_prefix,
- Iterator* level_iter) const {
- bool may_match = true;
- level_iter->Seek(internal_prefix);
- if (!level_iter->Valid()) {
- // we're past end of level
- may_match = false;
- } else if (ExtractUserKey(level_iter->key()).starts_with(
- ExtractUserKey(internal_prefix))) {
- // TODO(tylerharter): do we need this case? Or are we guaranteed
- // key() will always be the biggest value for this SST?
- may_match = true;
- } else {
- may_match = vset_->table_cache_->PrefixMayMatch(
- options,
- DecodeFixed64(level_iter->value().data()),
- DecodeFixed64(level_iter->value().data() + 8),
- internal_prefix, nullptr);
- }
- return may_match;
-}
-
-Iterator* Version::NewConcatenatingIterator(const ReadOptions& options,
- const EnvOptions& soptions,
- int level) const {
- Iterator* level_iter = new LevelFileNumIterator(vset_->icmp_, &files_[level]);
- if (options.prefix) {
- InternalKey internal_prefix(*options.prefix, 0, kTypeValue);
- if (!PrefixMayMatch(options, soptions,
- internal_prefix.Encode(), level_iter)) {
- delete level_iter;
- // nothing in this level can match the prefix
- return NewEmptyIterator();
- }
- }
- return NewTwoLevelIterator(level_iter, &GetFileIterator,
- vset_->table_cache_, options, soptions);
-}
-
-void Version::AddIterators(const ReadOptions& options,
- const EnvOptions& soptions,
- std::vector<Iterator*>* iters) {
- // Merge all level zero files together since they may overlap
- for (const FileMetaData* file : files_[0]) {
- iters->push_back(
- vset_->table_cache_->NewIterator(
- options, soptions, file->number, file->file_size));
- }
-
- // For levels > 0, we can use a concatenating iterator that sequentially
- // walks through the non-overlapping files in the level, opening them
- // lazily.
- for (int level = 1; level < vset_->NumberLevels(); level++) {
- if (!files_[level].empty()) {
- iters->push_back(NewConcatenatingIterator(options, soptions, level));
- }
- }
-}
-
-// Callback from TableCache::Get()
-namespace {
-enum SaverState {
- kNotFound,
- kFound,
- kDeleted,
- kCorrupt,
- kMerge // saver contains the current merge result (the operands)
-};
-struct Saver {
- SaverState state;
- const Comparator* ucmp;
- Slice user_key;
- bool* value_found; // Is value set correctly? Used by KeyMayExist
- std::string* value;
- const MergeOperator* merge_operator;
- std::deque<std::string>* merge_operands; // the merge operations encountered
- Logger* logger;
- bool didIO; // did we do any disk io?
- shared_ptr<Statistics> statistics;
-};
-}
-
-// Called from TableCache::Get and Table::Get when file/block in which
-// key may exist are not there in TableCache/BlockCache respectively. In this
-// case we can't guarantee that key does not exist and are not permitted to do
-// IO to be certain.Set the status=kFound and value_found=false to let the
-// caller know that key may exist but is not there in memory
-static void MarkKeyMayExist(void* arg) {
- Saver* s = reinterpret_cast<Saver*>(arg);
- s->state = kFound;
- if (s->value_found != nullptr) {
- *(s->value_found) = false;
- }
-}
-
-static bool SaveValue(void* arg, const Slice& ikey, const Slice& v, bool didIO){
- Saver* s = reinterpret_cast<Saver*>(arg);
- std::deque<std::string>* const ops = s->merge_operands; // shorter alias
- std::string merge_result; // temporary area for merge results later
-
- assert(s != nullptr && ops != nullptr);
-
- ParsedInternalKey parsed_key;
- // TODO: didIO and Merge?
- s->didIO = didIO;
- if (!ParseInternalKey(ikey, &parsed_key)) {
- // TODO: what about corrupt during Merge?
- s->state = kCorrupt;
- } else {
- if (s->ucmp->Compare(parsed_key.user_key, s->user_key) == 0) {
- // Key matches. Process it
- switch (parsed_key.type) {
- case kTypeValue:
- if (kNotFound == s->state) {
- s->state = kFound;
- s->value->assign(v.data(), v.size());
- } else if (kMerge == s->state) {
- assert(s->merge_operator != nullptr);
- s->state = kFound;
- if (!s->merge_operator->FullMerge(s->user_key, &v, *ops,
- s->value, s->logger)) {
- RecordTick(s->statistics, NUMBER_MERGE_FAILURES);
- s->state = kCorrupt;
- }
- } else {
- assert(false);
- }
- return false;
-
- case kTypeDeletion:
- if (kNotFound == s->state) {
- s->state = kDeleted;
- } else if (kMerge == s->state) {
- s->state = kFound;
- if (!s->merge_operator->FullMerge(s->user_key, nullptr, *ops,
- s->value, s->logger)) {
- RecordTick(s->statistics, NUMBER_MERGE_FAILURES);
- s->state = kCorrupt;
- }
- } else {
- assert(false);
- }
- return false;
-
- case kTypeMerge:
- assert(s->state == kNotFound || s->state == kMerge);
- s->state = kMerge;
- ops->push_front(v.ToString());
- while (ops->size() >= 2) {
- // Attempt to merge operands together via user associateive merge
- if (s->merge_operator->PartialMerge(s->user_key,
- Slice((*ops)[0]),
- Slice((*ops)[1]),
- &merge_result,
- s->logger)) {
- ops->pop_front();
- swap(ops->front(), merge_result);
- } else {
- // Associative merge returns false ==> stack the operands
- break;
- }
- }
- return true;
-
- case kTypeLogData:
- assert(false);
- break;
- }
- }
- }
-
- // s->state could be Corrupt, merge or notfound
-
- return false;
-}
-
-static bool NewestFirst(FileMetaData* a, FileMetaData* b) {
- return a->number > b->number;
-}
-static bool NewestFirstBySeqNo(FileMetaData* a, FileMetaData* b) {
- if (a->smallest_seqno > b->smallest_seqno) {
- assert(a->largest_seqno > b->largest_seqno);
- return true;
- }
- assert(a->largest_seqno <= b->largest_seqno);
- return false;
-}
-
-Version::Version(VersionSet* vset, uint64_t version_number)
- : vset_(vset), next_(this), prev_(this), refs_(0),
- files_(new std::vector<FileMetaData*>[vset->NumberLevels()]),
- files_by_size_(vset->NumberLevels()),
- next_file_to_compact_by_size_(vset->NumberLevels()),
- file_to_compact_(nullptr),
- file_to_compact_level_(-1),
- compaction_score_(vset->NumberLevels()),
- compaction_level_(vset->NumberLevels()),
- offset_manifest_file_(0),
- version_number_(version_number) {
-}
-
-void Version::Get(const ReadOptions& options,
- const LookupKey& k,
- std::string* value,
- Status* status,
- std::deque<std::string>* operands,
- GetStats* stats,
- const Options& db_options,
- bool* value_found) {
- Slice ikey = k.internal_key();
- Slice user_key = k.user_key();
- const Comparator* ucmp = vset_->icmp_.user_comparator();
-
- auto merge_operator = db_options.merge_operator.get();
- auto logger = db_options.info_log;
-
- assert(status->ok() || status->IsMergeInProgress());
- Saver saver;
- saver.state = status->ok()? kNotFound : kMerge;
- saver.ucmp = ucmp;
- saver.user_key = user_key;
- saver.value_found = value_found;
- saver.value = value;
- saver.merge_operator = merge_operator;
- saver.merge_operands = operands;
- saver.logger = logger.get();
- saver.didIO = false;
- saver.statistics = db_options.statistics;
-
- stats->seek_file = nullptr;
- stats->seek_file_level = -1;
- FileMetaData* last_file_read = nullptr;
- int last_file_read_level = -1;
-
- // We can search level-by-level since entries never hop across
- // levels. Therefore we are guaranteed that if we find data
- // in an smaller level, later levels are irrelevant (unless we
- // are MergeInProgress).
- std::vector<FileMetaData*> important_files;
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- size_t num_files = files_[level].size();
- if (num_files == 0) continue;
-
- // Get the list of files to search in this level
- FileMetaData* const* files = &files_[level][0];
- important_files.clear();
- important_files.reserve(num_files);
-
- // Some files may overlap each other. We find
- // all files that overlap user_key and process them in order from
- // newest to oldest. In the context of merge-operator,
- // this can occur at any level. Otherwise, it only occurs
- // at Level-0 (since Put/Deletes are always compacted into a single entry).
- uint32_t start_index;
- if (level == 0) {
- // On Level-0, we read through all files to check for overlap.
- start_index = 0;
- } else {
- // On Level-n (n>=1), files are sorted.
- // Binary search to find earliest index whose largest key >= ikey.
- // We will also stop when the file no longer overlaps ikey
- start_index = FindFile(vset_->icmp_, files_[level], ikey);
- }
-
- // Traverse the list, finding all overlapping files.
- for (uint32_t i = start_index; i < num_files; i++) {
- FileMetaData* f = files[i];
- if (ucmp->Compare(user_key, f->smallest.user_key()) >= 0 &&
- ucmp->Compare(user_key, f->largest.user_key()) <= 0) {
- important_files.push_back(f);
- } else if (level > 0) {
- // If on Level-n (n>=1) then the files are sorted.
- // So we can stop looking when we are past the ikey.
- break;
- }
- }
-
- if (important_files.empty()) continue;
-
- if (level == 0) {
- if (vset_->options_->compaction_style == kCompactionStyleUniversal) {
- std::sort(important_files.begin(), important_files.end(), NewestFirstBySeqNo);
- } else {
- std::sort(important_files.begin(), important_files.end(), NewestFirst);
- }
- } else {
- // Sanity check to make sure that the files are correctly sorted
-#ifndef NDEBUG
- num_files = important_files.size();
- for (uint32_t i = 1; i < num_files; ++i) {
- FileMetaData* a = important_files[i-1];
- FileMetaData* b = important_files[i];
- int comp_sign = vset_->icmp_.Compare(a->largest, b->smallest);
- assert(comp_sign < 0);
- }
-#endif
- }
-
- // Traverse each relevant file to find the desired key
- num_files = important_files.size();
- for (uint32_t i = 0; i < num_files; ++i) {
- FileMetaData* f = important_files[i];
- bool tableIO = false;
- *status = vset_->table_cache_->Get(options, f->number, f->file_size,
- ikey, &saver, SaveValue, &tableIO,
- MarkKeyMayExist);
- // TODO: examine the behavior for corrupted key
- if (!status->ok()) {
- return;
- }
-
- if (last_file_read != nullptr && stats->seek_file == nullptr) {
- // We have had more than one seek for this read. Charge the 1st file.
- stats->seek_file = last_file_read;
- stats->seek_file_level = last_file_read_level;
- }
-
- // If we did any IO as part of the read, then we remember it because
- // it is a possible candidate for seek-based compaction. saver.didIO
- // is true if the block had to be read in from storage and was not
- // pre-exisiting in the block cache. Also, if this file was not pre-
- // existing in the table cache and had to be freshly opened that needed
- // the index blocks to be read-in, then tableIO is true. One thing
- // to note is that the index blocks are not part of the block cache.
- if (saver.didIO || tableIO) {
- last_file_read = f;
- last_file_read_level = level;
- }
-
- switch (saver.state) {
- case kNotFound:
- break; // Keep searching in other files
- case kFound:
- return;
- case kDeleted:
- *status = Status::NotFound(Slice()); // Use empty error message for speed
- return;
- case kCorrupt:
- *status = Status::Corruption("corrupted key for ", user_key);
- return;
- case kMerge:
- break;
- }
- }
- }
-
-
- if (kMerge == saver.state) {
- // merge_operands are in saver and we hit the beginning of the key history
- // do a final merge of nullptr and operands;
- if (merge_operator->FullMerge(user_key, nullptr, *saver.merge_operands,
- value, logger.get())) {
- *status = Status::OK();
- } else {
- RecordTick(db_options.statistics, NUMBER_MERGE_FAILURES);
- *status = Status::Corruption("could not perform end-of-key merge for ",
- user_key);
- }
- } else {
- *status = Status::NotFound(Slice()); // Use an empty error message for speed
- }
-}
-
-bool Version::UpdateStats(const GetStats& stats) {
- FileMetaData* f = stats.seek_file;
- if (f != nullptr) {
- f->allowed_seeks--;
- if (f->allowed_seeks <= 0 && file_to_compact_ == nullptr) {
- file_to_compact_ = f;
- file_to_compact_level_ = stats.seek_file_level;
- return true;
- }
- }
- return false;
-}
-
-void Version::Ref() {
- ++refs_;
-}
-
-void Version::Unref() {
- assert(this != &vset_->dummy_versions_);
- assert(refs_ >= 1);
- --refs_;
- if (refs_ == 0) {
- delete this;
- }
-}
-
-bool Version::OverlapInLevel(int level,
- const Slice* smallest_user_key,
- const Slice* largest_user_key) {
- return SomeFileOverlapsRange(vset_->icmp_, (level > 0), files_[level],
- smallest_user_key, largest_user_key);
-}
-
-int Version::PickLevelForMemTableOutput(
- const Slice& smallest_user_key,
- const Slice& largest_user_key) {
- int level = 0;
- if (!OverlapInLevel(0, &smallest_user_key, &largest_user_key)) {
- // Push to next level if there is no overlap in next level,
- // and the #bytes overlapping in the level after that are limited.
- InternalKey start(smallest_user_key, kMaxSequenceNumber, kValueTypeForSeek);
- InternalKey limit(largest_user_key, 0, static_cast<ValueType>(0));
- std::vector<FileMetaData*> overlaps;
- int max_mem_compact_level = vset_->options_->max_mem_compaction_level;
- while (max_mem_compact_level > 0 && level < max_mem_compact_level) {
- if (OverlapInLevel(level + 1, &smallest_user_key, &largest_user_key)) {
- break;
- }
- if (level + 2 >= vset_->NumberLevels()) {
- level++;
- break;
- }
- GetOverlappingInputs(level + 2, &start, &limit, &overlaps);
- const uint64_t sum = TotalFileSize(overlaps);
- if (sum > vset_->MaxGrandParentOverlapBytes(level)) {
- break;
- }
- level++;
- }
- }
-
- return level;
-}
-
-// Store in "*inputs" all files in "level" that overlap [begin,end]
-// If hint_index is specified, then it points to a file in the
-// overlapping range.
-// The file_index returns a pointer to any file in an overlapping range.
-void Version::GetOverlappingInputs(
- int level,
- const InternalKey* begin,
- const InternalKey* end,
- std::vector<FileMetaData*>* inputs,
- int hint_index,
- int* file_index) {
- inputs->clear();
- Slice user_begin, user_end;
- if (begin != nullptr) {
- user_begin = begin->user_key();
- }
- if (end != nullptr) {
- user_end = end->user_key();
- }
- if (file_index) {
- *file_index = -1;
- }
- const Comparator* user_cmp = vset_->icmp_.user_comparator();
- if (begin != nullptr && end != nullptr && level > 0) {
- GetOverlappingInputsBinarySearch(level, user_begin, user_end, inputs,
- hint_index, file_index);
- return;
- }
- for (size_t i = 0; i < files_[level].size(); ) {
- FileMetaData* f = files_[level][i++];
- const Slice file_start = f->smallest.user_key();
- const Slice file_limit = f->largest.user_key();
- if (begin != nullptr && user_cmp->Compare(file_limit, user_begin) < 0) {
- // "f" is completely before specified range; skip it
- } else if (end != nullptr && user_cmp->Compare(file_start, user_end) > 0) {
- // "f" is completely after specified range; skip it
- } else {
- inputs->push_back(f);
- if (level == 0) {
- // Level-0 files may overlap each other. So check if the newly
- // added file has expanded the range. If so, restart search.
- if (begin != nullptr && user_cmp->Compare(file_start, user_begin) < 0) {
- user_begin = file_start;
- inputs->clear();
- i = 0;
- } else if (end != nullptr
- && user_cmp->Compare(file_limit, user_end) > 0) {
- user_end = file_limit;
- inputs->clear();
- i = 0;
- }
- } else if (file_index) {
- *file_index = i-1;
- }
- }
- }
-}
-
-// Store in "*inputs" all files in "level" that overlap [begin,end]
-// Employ binary search to find at least one file that overlaps the
-// specified range. From that file, iterate backwards and
-// forwards to find all overlapping files.
-void Version::GetOverlappingInputsBinarySearch(
- int level,
- const Slice& user_begin,
- const Slice& user_end,
- std::vector<FileMetaData*>* inputs,
- int hint_index,
- int* file_index) {
- assert(level > 0);
- int min = 0;
- int mid = 0;
- int max = files_[level].size() -1;
- bool foundOverlap = false;
- const Comparator* user_cmp = vset_->icmp_.user_comparator();
-
- // if the caller already knows the index of a file that has overlap,
- // then we can skip the binary search.
- if (hint_index != -1) {
- mid = hint_index;
- foundOverlap = true;
- }
-
- while (!foundOverlap && min <= max) {
- mid = (min + max)/2;
- FileMetaData* f = files_[level][mid];
- const Slice file_start = f->smallest.user_key();
- const Slice file_limit = f->largest.user_key();
- if (user_cmp->Compare(file_limit, user_begin) < 0) {
- min = mid + 1;
- } else if (user_cmp->Compare(user_end, file_start) < 0) {
- max = mid - 1;
- } else {
- foundOverlap = true;
- break;
- }
- }
-
- // If there were no overlapping files, return immediately.
- if (!foundOverlap) {
- return;
- }
- // returns the index where an overlap is found
- if (file_index) {
- *file_index = mid;
- }
- ExtendOverlappingInputs(level, user_begin, user_end, inputs, mid);
-}
-
-// Store in "*inputs" all files in "level" that overlap [begin,end]
-// The midIndex specifies the index of at least one file that
-// overlaps the specified range. From that file, iterate backward
-// and forward to find all overlapping files.
-void Version::ExtendOverlappingInputs(
- int level,
- const Slice& user_begin,
- const Slice& user_end,
- std::vector<FileMetaData*>* inputs,
- unsigned int midIndex) {
-
- const Comparator* user_cmp = vset_->icmp_.user_comparator();
-#ifndef NDEBUG
- {
- // assert that the file at midIndex overlaps with the range
- assert(midIndex < files_[level].size());
- FileMetaData* f = files_[level][midIndex];
- const Slice fstart = f->smallest.user_key();
- const Slice flimit = f->largest.user_key();
- if (user_cmp->Compare(fstart, user_begin) >= 0) {
- assert(user_cmp->Compare(fstart, user_end) <= 0);
- } else {
- assert(user_cmp->Compare(flimit, user_begin) >= 0);
- }
- }
-#endif
- int startIndex = midIndex + 1;
- int endIndex = midIndex;
- int count __attribute__((unused)) = 0;
-
- // check backwards from 'mid' to lower indices
- for (int i = midIndex; i >= 0 ; i--) {
- FileMetaData* f = files_[level][i];
- const Slice file_limit = f->largest.user_key();
- if (user_cmp->Compare(file_limit, user_begin) >= 0) {
- startIndex = i;
- assert((count++, true));
- } else {
- break;
- }
- }
- // check forward from 'mid+1' to higher indices
- for (unsigned int i = midIndex+1; i < files_[level].size(); i++) {
- FileMetaData* f = files_[level][i];
- const Slice file_start = f->smallest.user_key();
- if (user_cmp->Compare(file_start, user_end) <= 0) {
- assert((count++, true));
- endIndex = i;
- } else {
- break;
- }
- }
- assert(count == endIndex - startIndex + 1);
-
- // insert overlapping files into vector
- for (int i = startIndex; i <= endIndex; i++) {
- FileMetaData* f = files_[level][i];
- inputs->push_back(f);
- }
-}
-
-// Returns true iff the first or last file in inputs contains
-// an overlapping user key to the file "just outside" of it (i.e.
-// just after the last file, or just before the first file)
-// REQUIRES: "*inputs" is a sorted list of non-overlapping files
-bool Version::HasOverlappingUserKey(
- const std::vector<FileMetaData*>* inputs,
- int level) {
-
- // If inputs empty, there is no overlap.
- // If level == 0, it is assumed that all needed files were already included.
- if (inputs->empty() || level == 0){
- return false;
- }
-
- const Comparator* user_cmp = vset_->icmp_.user_comparator();
- const std::vector<FileMetaData*>& files = files_[level];
- const size_t kNumFiles = files.size();
-
- // Check the last file in inputs against the file after it
- size_t last_file = FindFile(vset_->icmp_, files,
- inputs->back()->largest.Encode());
- assert(0 <= last_file && last_file < kNumFiles); // File should exist!
- if (last_file < kNumFiles-1) { // If not the last file
- const Slice last_key_in_input = files[last_file]->largest.user_key();
- const Slice first_key_after = files[last_file+1]->smallest.user_key();
- if (user_cmp->Compare(last_key_in_input, first_key_after) == 0) {
- // The last user key in input overlaps with the next file's first key
- return true;
- }
- }
-
- // Check the first file in inputs against the file just before it
- size_t first_file = FindFile(vset_->icmp_, files,
- inputs->front()->smallest.Encode());
- assert(0 <= first_file && first_file <= last_file); // File should exist!
- if (first_file > 0) { // If not first file
- const Slice& first_key_in_input = files[first_file]->smallest.user_key();
- const Slice& last_key_before = files[first_file-1]->largest.user_key();
- if (user_cmp->Compare(first_key_in_input, last_key_before) == 0) {
- // The first user key in input overlaps with the previous file's last key
- return true;
- }
- }
-
- return false;
-}
-
-std::string Version::DebugString(bool hex) const {
- std::string r;
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- // E.g.,
- // --- level 1 ---
- // 17:123['a' .. 'd']
- // 20:43['e' .. 'g']
- r.append("--- level ");
- AppendNumberTo(&r, level);
- r.append(" --- version# ");
- AppendNumberTo(&r, version_number_);
- r.append(" ---\n");
- const std::vector<FileMetaData*>& files = files_[level];
- for (size_t i = 0; i < files.size(); i++) {
- r.push_back(' ');
- AppendNumberTo(&r, files[i]->number);
- r.push_back(':');
- AppendNumberTo(&r, files[i]->file_size);
- r.append("[");
- r.append(files[i]->smallest.DebugString(hex));
- r.append(" .. ");
- r.append(files[i]->largest.DebugString(hex));
- r.append("]\n");
- }
- }
- return r;
-}
-
-// this is used to batch writes to the manifest file
-struct VersionSet::ManifestWriter {
- Status status;
- bool done;
- port::CondVar cv;
- VersionEdit* edit;
-
- explicit ManifestWriter(port::Mutex* mu, VersionEdit* e) :
- done(false), cv(mu), edit(e) {}
-};
-
-// A helper class so we can efficiently apply a whole sequence
-// of edits to a particular state without creating intermediate
-// Versions that contain full copies of the intermediate state.
-class VersionSet::Builder {
- private:
- // Helper to sort by v->files_[file_number].smallest
- struct BySmallestKey {
- const InternalKeyComparator* internal_comparator;
-
- bool operator()(FileMetaData* f1, FileMetaData* f2) const {
- int r = internal_comparator->Compare(f1->smallest, f2->smallest);
- if (r != 0) {
- return (r < 0);
- } else {
- // Break ties by file number
- return (f1->number < f2->number);
- }
- }
- };
-
- typedef std::set<FileMetaData*, BySmallestKey> FileSet;
- struct LevelState {
- std::set<uint64_t> deleted_files;
- FileSet* added_files;
- };
-
- VersionSet* vset_;
- Version* base_;
- LevelState* levels_;
-
- public:
- // Initialize a builder with the files from *base and other info from *vset
- Builder(VersionSet* vset, Version* base)
- : vset_(vset),
- base_(base) {
- base_->Ref();
- levels_ = new LevelState[vset_->NumberLevels()];
- BySmallestKey cmp;
- cmp.internal_comparator = &vset_->icmp_;
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- levels_[level].added_files = new FileSet(cmp);
- }
- }
-
- ~Builder() {
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- const FileSet* added = levels_[level].added_files;
- std::vector<FileMetaData*> to_unref;
- to_unref.reserve(added->size());
- for (FileSet::const_iterator it = added->begin();
- it != added->end(); ++it) {
- to_unref.push_back(*it);
- }
- delete added;
- for (uint32_t i = 0; i < to_unref.size(); i++) {
- FileMetaData* f = to_unref[i];
- f->refs--;
- if (f->refs <= 0) {
- delete f;
- }
- }
- }
- delete[] levels_;
- base_->Unref();
- }
-
- void CheckConsistency(Version* v) {
-#ifndef NDEBUG
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- // Make sure there is no overlap in levels > 0
- if (level > 0) {
- for (uint32_t i = 1; i < v->files_[level].size(); i++) {
- const InternalKey& prev_end = v->files_[level][i-1]->largest;
- const InternalKey& this_begin = v->files_[level][i]->smallest;
- if (vset_->icmp_.Compare(prev_end, this_begin) >= 0) {
- fprintf(stderr, "overlapping ranges in same level %s vs. %s\n",
- prev_end.DebugString().c_str(),
- this_begin.DebugString().c_str());
- abort();
- }
- }
- }
- }
-#endif
- }
-
- void CheckConsistencyForDeletes(
- VersionEdit* edit,
- unsigned int number,
- int level) {
-#ifndef NDEBUG
- // a file to be deleted better exist in the previous version
- bool found = false;
- for (int l = 0; !found && l < edit->number_levels_; l++) {
- const std::vector<FileMetaData*>& base_files = base_->files_[l];
- for (unsigned int i = 0; i < base_files.size(); i++) {
- FileMetaData* f = base_files[i];
- if (f->number == number) {
- found = true;
- break;
- }
- }
- }
- // if the file did not exist in the previous version, then it
- // is possibly moved from lower level to higher level in current
- // version
- for (int l = level+1; !found && l < edit->number_levels_; l++) {
- const FileSet* added = levels_[l].added_files;
- for (FileSet::const_iterator added_iter = added->begin();
- added_iter != added->end(); ++added_iter) {
- FileMetaData* f = *added_iter;
- if (f->number == number) {
- found = true;
- break;
- }
- }
- }
-
- // maybe this file was added in a previous edit that was Applied
- if (!found) {
- const FileSet* added = levels_[level].added_files;
- for (FileSet::const_iterator added_iter = added->begin();
- added_iter != added->end(); ++added_iter) {
- FileMetaData* f = *added_iter;
- if (f->number == number) {
- found = true;
- break;
- }
- }
- }
- assert(found);
-#endif
- }
-
- // Apply all of the edits in *edit to the current state.
- void Apply(VersionEdit* edit) {
- CheckConsistency(base_);
-
- // Update compaction pointers
- for (size_t i = 0; i < edit->compact_pointers_.size(); i++) {
- const int level = edit->compact_pointers_[i].first;
- vset_->compact_pointer_[level] =
- edit->compact_pointers_[i].second.Encode().ToString();
- }
-
- // Delete files
- const VersionEdit::DeletedFileSet& del = edit->deleted_files_;
- for (VersionEdit::DeletedFileSet::const_iterator iter = del.begin();
- iter != del.end();
- ++iter) {
- const int level = iter->first;
- const uint64_t number = iter->second;
- levels_[level].deleted_files.insert(number);
- CheckConsistencyForDeletes(edit, number, level);
- }
-
- // Add new files
- for (size_t i = 0; i < edit->new_files_.size(); i++) {
- const int level = edit->new_files_[i].first;
- FileMetaData* f = new FileMetaData(edit->new_files_[i].second);
- f->refs = 1;
-
- // We arrange to automatically compact this file after
- // a certain number of seeks. Let's assume:
- // (1) One seek costs 10ms
- // (2) Writing or reading 1MB costs 10ms (100MB/s)
- // (3) A compaction of 1MB does 25MB of IO:
- // 1MB read from this level
- // 10-12MB read from next level (boundaries may be misaligned)
- // 10-12MB written to next level
- // This implies that 25 seeks cost the same as the compaction
- // of 1MB of data. I.e., one seek costs approximately the
- // same as the compaction of 40KB of data. We are a little
- // conservative and allow approximately one seek for every 16KB
- // of data before triggering a compaction.
- f->allowed_seeks = (f->file_size / 16384);
- if (f->allowed_seeks < 100) f->allowed_seeks = 100;
-
- levels_[level].deleted_files.erase(f->number);
- levels_[level].added_files->insert(f);
- }
- }
-
- // Save the current state in *v.
- void SaveTo(Version* v) {
- CheckConsistency(base_);
- CheckConsistency(v);
- BySmallestKey cmp;
- cmp.internal_comparator = &vset_->icmp_;
- for (int level = 0; level < vset_->NumberLevels(); level++) {
- // Merge the set of added files with the set of pre-existing files.
- // Drop any deleted files. Store the result in *v.
- const std::vector<FileMetaData*>& base_files = base_->files_[level];
- std::vector<FileMetaData*>::const_iterator base_iter = base_files.begin();
- std::vector<FileMetaData*>::const_iterator base_end = base_files.end();
- const FileSet* added = levels_[level].added_files;
- v->files_[level].reserve(base_files.size() + added->size());
- for (FileSet::const_iterator added_iter = added->begin();
- added_iter != added->end();
- ++added_iter) {
- // Add all smaller files listed in base_
- for (std::vector<FileMetaData*>::const_iterator bpos
- = std::upper_bound(base_iter, base_end, *added_iter, cmp);
- base_iter != bpos;
- ++base_iter) {
- MaybeAddFile(v, level, *base_iter);
- }
-
- MaybeAddFile(v, level, *added_iter);
- }
-
- // Add remaining base files
- for (; base_iter != base_end; ++base_iter) {
- MaybeAddFile(v, level, *base_iter);
- }
- }
- CheckConsistency(v);
- }
-
- void MaybeAddFile(Version* v, int level, FileMetaData* f) {
- if (levels_[level].deleted_files.count(f->number) > 0) {
- // File is deleted: do nothing
- } else {
- std::vector<FileMetaData*>* files = &v->files_[level];
- if (level > 0 && !files->empty()) {
- // Must not overlap
- assert(vset_->icmp_.Compare((*files)[files->size()-1]->largest,
- f->smallest) < 0);
- }
- f->refs++;
- files->push_back(f);
- }
- }
-};
-
-VersionSet::VersionSet(const std::string& dbname,
- const Options* options,
- const EnvOptions& storage_options,
- TableCache* table_cache,
- const InternalKeyComparator* cmp)
- : env_(options->env),
- dbname_(dbname),
- options_(options),
- table_cache_(table_cache),
- icmp_(*cmp),
- next_file_number_(2),
- manifest_file_number_(0), // Filled by Recover()
- last_sequence_(0),
- log_number_(0),
- prev_log_number_(0),
- num_levels_(options_->num_levels),
- dummy_versions_(this),
- current_(nullptr),
- compactions_in_progress_(options_->num_levels),
- current_version_number_(0),
- last_observed_manifest_size_(0),
- storage_options_(storage_options),
- storage_options_compactions_(storage_options_) {
- compact_pointer_ = new std::string[options_->num_levels];
- Init(options_->num_levels);
- AppendVersion(new Version(this, current_version_number_++));
-}
-
-VersionSet::~VersionSet() {
- current_->Unref();
- assert(dummy_versions_.next_ == &dummy_versions_); // List must be empty
- for (auto file : obsolete_files_) {
- delete file;
- }
- obsolete_files_.clear();
- delete[] compact_pointer_;
- delete[] max_file_size_;
- delete[] level_max_bytes_;
-}
-
-void VersionSet::Init(int num_levels) {
- max_file_size_ = new uint64_t[num_levels];
- level_max_bytes_ = new uint64_t[num_levels];
- int target_file_size_multiplier = options_->target_file_size_multiplier;
- int max_bytes_multiplier = options_->max_bytes_for_level_multiplier;
- for (int i = 0; i < num_levels; i++) {
- if (i == 0 && options_->compaction_style == kCompactionStyleUniversal) {
- max_file_size_[i] = ULLONG_MAX;
- level_max_bytes_[i] = options_->max_bytes_for_level_base;
- } else if (i > 1) {
- max_file_size_[i] = max_file_size_[i-1] * target_file_size_multiplier;
- level_max_bytes_[i] = level_max_bytes_[i-1] * max_bytes_multiplier *
- options_->max_bytes_for_level_multiplier_additional[i-1];
- } else {
- max_file_size_[i] = options_->target_file_size_base;
- level_max_bytes_[i] = options_->max_bytes_for_level_base;
- }
- }
-}
-
-void VersionSet::AppendVersion(Version* v) {
- // Make "v" current
- assert(v->refs_ == 0);
- assert(v != current_);
- if (current_ != nullptr) {
- assert(current_->refs_ > 0);
- current_->Unref();
- }
- current_ = v;
- v->Ref();
-
- // Append to linked list
- v->prev_ = dummy_versions_.prev_;
- v->next_ = &dummy_versions_;
- v->prev_->next_ = v;
- v->next_->prev_ = v;
-}
-
-Status VersionSet::LogAndApply(VersionEdit* edit, port::Mutex* mu,
- bool new_descriptor_log) {
- mu->AssertHeld();
-
- // queue our request
- ManifestWriter w(mu, edit);
- manifest_writers_.push_back(&w);
- while (!w.done && &w != manifest_writers_.front()) {
- w.cv.Wait();
- }
- if (w.done) {
- return w.status;
- }
-
- std::vector<VersionEdit*> batch_edits;
- Version* v = new Version(this, current_version_number_++);
- Builder builder(this, current_);
-
- // process all requests in the queue
- ManifestWriter* last_writer = &w;
- assert(!manifest_writers_.empty());
- assert(manifest_writers_.front() == &w);
- std::deque<ManifestWriter*>::iterator iter = manifest_writers_.begin();
- for (; iter != manifest_writers_.end(); ++iter) {
- last_writer = *iter;
- LogAndApplyHelper(&builder, v, last_writer->edit, mu);
- batch_edits.push_back(last_writer->edit);
- }
- builder.SaveTo(v);
-
- // Initialize new descriptor log file if necessary by creating
- // a temporary file that contains a snapshot of the current version.
- std::string new_manifest_file;
- uint64_t new_manifest_file_size = 0;
- Status s;
- // we will need this if we are creating new manifest
- uint64_t old_manifest_file_number = manifest_file_number_;
-
- // No need to perform this check if a new Manifest is being created anyways.
- if (!descriptor_log_ ||
- last_observed_manifest_size_ > options_->max_manifest_file_size) {
- new_descriptor_log = true;
- manifest_file_number_ = NewFileNumber(); // Change manifest file no.
- }
-
- if (new_descriptor_log) {
- new_manifest_file = DescriptorFileName(dbname_, manifest_file_number_);
- edit->SetNextFile(next_file_number_);
- }
-
- // Unlock during expensive MANIFEST log write. New writes cannot get here
- // because &w is ensuring that all new writes get queued.
- {
- // calculate the amount of data being compacted at every level
- std::vector<uint64_t> size_being_compacted(NumberLevels()-1);
- SizeBeingCompacted(size_being_compacted);
-
- mu->Unlock();
-
- // This is fine because everything inside of this block is serialized --
- // only one thread can be here at the same time
- if (!new_manifest_file.empty()) {
- unique_ptr<WritableFile> descriptor_file;
- s = env_->NewWritableFile(new_manifest_file, &descriptor_file,
- storage_options_);
- if (s.ok()) {
- descriptor_log_.reset(new log::Writer(std::move(descriptor_file)));
- s = WriteSnapshot(descriptor_log_.get());
- }
- }
-
- // The calls to Finalize and UpdateFilesBySize are cpu-heavy
- // and is best called outside the mutex.
- Finalize(v, size_being_compacted);
- UpdateFilesBySize(v);
-
- // Write new record to MANIFEST log
- if (s.ok()) {
- std::string record;
- for (unsigned int i = 0; i < batch_edits.size(); i++) {
- batch_edits[i]->EncodeTo(&record);
- s = descriptor_log_->AddRecord(record);
- if (!s.ok()) {
- break;
- }
- }
- if (s.ok()) {
- if (options_->use_fsync) {
- StopWatch sw(env_, options_->statistics, MANIFEST_FILE_SYNC_MICROS);
- s = descriptor_log_->file()->Fsync();
- } else {
- StopWatch sw(env_, options_->statistics, MANIFEST_FILE_SYNC_MICROS);
- s = descriptor_log_->file()->Sync();
- }
- }
- if (!s.ok()) {
- Log(options_->info_log, "MANIFEST write: %s\n", s.ToString().c_str());
- if (ManifestContains(record)) {
- Log(options_->info_log,
- "MANIFEST contains log record despite error; advancing to new "
- "version to prevent mismatch between in-memory and logged state"
- " If paranoid is set, then the db is now in readonly mode.");
- s = Status::OK();
- }
- }
- }
-
- // If we just created a new descriptor file, install it by writing a
- // new CURRENT file that points to it.
- if (s.ok() && !new_manifest_file.empty()) {
- s = SetCurrentFile(env_, dbname_, manifest_file_number_);
- if (s.ok() && old_manifest_file_number < manifest_file_number_) {
- // delete old manifest file
- Log(options_->info_log,
- "Deleting manifest %lu current manifest %lu\n",
- (unsigned long)old_manifest_file_number,
- (unsigned long)manifest_file_number_);
- // we don't care about an error here, PurgeObsoleteFiles will take care
- // of it later
- env_->DeleteFile(DescriptorFileName(dbname_, old_manifest_file_number));
- }
- }
-
- // find offset in manifest file where this version is stored.
- new_manifest_file_size = descriptor_log_->file()->GetFileSize();
-
- LogFlush(options_->info_log);
- mu->Lock();
- // cache the manifest_file_size so that it can be used to rollover in the
- // next call to LogAndApply
- last_observed_manifest_size_ = new_manifest_file_size;
- }
-
- // Install the new version
- if (s.ok()) {
- v->offset_manifest_file_ = new_manifest_file_size;
- AppendVersion(v);
- log_number_ = edit->log_number_;
- prev_log_number_ = edit->prev_log_number_;
-
- } else {
- Log(options_->info_log, "Error in committing version %lu",
- (unsigned long)v->GetVersionNumber());
- delete v;
- if (!new_manifest_file.empty()) {
- descriptor_log_.reset();
- env_->DeleteFile(new_manifest_file);
- }
- }
-
- // wake up all the waiting writers
- while (true) {
- ManifestWriter* ready = manifest_writers_.front();
- manifest_writers_.pop_front();
- if (ready != &w) {
- ready->status = s;
- ready->done = true;
- ready->cv.Signal();
- }
- if (ready == last_writer) break;
- }
- // Notify new head of write queue
- if (!manifest_writers_.empty()) {
- manifest_writers_.front()->cv.Signal();
- }
- return s;
-}
-
-void VersionSet::LogAndApplyHelper(Builder* builder, Version* v,
- VersionEdit* edit, port::Mutex* mu) {
- mu->AssertHeld();
-
- if (edit->has_log_number_) {
- assert(edit->log_number_ >= log_number_);
- assert(edit->log_number_ < next_file_number_);
- } else {
- edit->SetLogNumber(log_number_);
- }
-
- if (!edit->has_prev_log_number_) {
- edit->SetPrevLogNumber(prev_log_number_);
- }
-
- edit->SetNextFile(next_file_number_);
- edit->SetLastSequence(last_sequence_);
-
- builder->Apply(edit);
-}
-
-Status VersionSet::Recover() {
- struct LogReporter : public log::Reader::Reporter {
- Status* status;
- virtual void Corruption(size_t bytes, const Status& s) {
- if (this->status->ok()) *this->status = s;
- }
- };
-
- // Read "CURRENT" file, which contains a pointer to the current manifest file
- std::string current;
- Status s = ReadFileToString(env_, CurrentFileName(dbname_), ¤t);
- if (!s.ok()) {
- return s;
- }
- if (current.empty() || current[current.size()-1] != '\n') {
- return Status::Corruption("CURRENT file does not end with newline");
- }
- current.resize(current.size() - 1);
-
- Log(options_->info_log, "Recovering from manifest file:%s\n",
- current.c_str());
-
- std::string dscname = dbname_ + "/" + current;
- unique_ptr<SequentialFile> file;
- s = env_->NewSequentialFile(dscname, &file, storage_options_);
- if (!s.ok()) {
- return s;
- }
- uint64_t manifest_file_size;
- s = env_->GetFileSize(dscname, &manifest_file_size);
- if (!s.ok()) {
- return s;
- }
-
- bool have_log_number = false;
- bool have_prev_log_number = false;
- bool have_next_file = false;
- bool have_last_sequence = false;
- uint64_t next_file = 0;
- uint64_t last_sequence = 0;
- uint64_t log_number = 0;
- uint64_t prev_log_number = 0;
- Builder builder(this, current_);
-
- {
- LogReporter reporter;
- reporter.status = &s;
- log::Reader reader(std::move(file), &reporter, true/*checksum*/,
- 0/*initial_offset*/);
- Slice record;
- std::string scratch;
- while (reader.ReadRecord(&record, &scratch) && s.ok()) {
- VersionEdit edit(NumberLevels());
- s = edit.DecodeFrom(record);
- if (s.ok()) {
- if (edit.has_comparator_ &&
- edit.comparator_ != icmp_.user_comparator()->Name()) {
- s = Status::InvalidArgument(icmp_.user_comparator()->Name(),
- "does not match existing comparator " +
- edit.comparator_);
- }
- }
-
- if (s.ok()) {
- builder.Apply(&edit);
- }
-
- if (edit.has_log_number_) {
- log_number = edit.log_number_;
- have_log_number = true;
- }
-
- if (edit.has_prev_log_number_) {
- prev_log_number = edit.prev_log_number_;
- have_prev_log_number = true;
- }
-
- if (edit.has_next_file_number_) {
- next_file = edit.next_file_number_;
- have_next_file = true;
- }
-
- if (edit.has_last_sequence_) {
- last_sequence = edit.last_sequence_;
- have_last_sequence = true;
- }
- }
- }
- file.reset();
-
- if (s.ok()) {
- if (!have_next_file) {
- s = Status::Corruption("no meta-nextfile entry in descriptor");
- } else if (!have_log_number) {
- s = Status::Corruption("no meta-lognumber entry in descriptor");
- } else if (!have_last_sequence) {
- s = Status::Corruption("no last-sequence-number entry in descriptor");
- }
-
- if (!have_prev_log_number) {
- prev_log_number = 0;
- }
-
- MarkFileNumberUsed(prev_log_number);
- MarkFileNumberUsed(log_number);
- }
-
- if (s.ok()) {
- Version* v = new Version(this, current_version_number_++);
- builder.SaveTo(v);
-
- // Install recovered version
- std::vector<uint64_t> size_being_compacted(NumberLevels()-1);
- SizeBeingCompacted(size_being_compacted);
- Finalize(v, size_being_compacted);
-
- v->offset_manifest_file_ = manifest_file_size;
- AppendVersion(v);
- manifest_file_number_ = next_file;
- next_file_number_ = next_file + 1;
- last_sequence_ = last_sequence;
- log_number_ = log_number;
- prev_log_number_ = prev_log_number;
-
- Log(options_->info_log, "Recovered from manifest file:%s succeeded,"
- "manifest_file_number is %lu, next_file_number is %lu, "
- "last_sequence is %lu, log_number is %lu,"
- "prev_log_number is %lu\n",
- current.c_str(),
- (unsigned long)manifest_file_number_,
- (unsigned long)next_file_number_,
- (unsigned long)last_sequence_,
- (unsigned long)log_number_,
- (unsigned long)prev_log_number_);
- }
-
- return s;
-}
-
-Status VersionSet::DumpManifest(Options& options, std::string& dscname,
- bool verbose, bool hex) {
- struct LogReporter : public log::Reader::Reporter {
- Status* status;
- virtual void Corruption(size_t bytes, const Status& s) {
- if (this->status->ok()) *this->status = s;
- }
- };
-
- // Open the specified manifest file.
- unique_ptr<SequentialFile> file;
- Status s = options.env->NewSequentialFile(dscname, &file, storage_options_);
- if (!s.ok()) {
- return s;
- }
-
- bool have_log_number = false;
- bool have_prev_log_number = false;
- bool have_next_file = false;
- bool have_last_sequence = false;
- uint64_t next_file = 0;
- uint64_t last_sequence = 0;
- uint64_t log_number = 0;
- uint64_t prev_log_number = 0;
- int count = 0;
- VersionSet::Builder builder(this, current_);
-
- {
- LogReporter reporter;
- reporter.status = &s;
- log::Reader reader(std::move(file), &reporter, true/*checksum*/,
- 0/*initial_offset*/);
- Slice record;
- std::string scratch;
- while (reader.ReadRecord(&record, &scratch) && s.ok()) {
- VersionEdit edit(NumberLevels());
- s = edit.DecodeFrom(record);
- if (s.ok()) {
- if (edit.has_comparator_ &&
- edit.comparator_ != icmp_.user_comparator()->Name()) {
- s = Status::InvalidArgument(icmp_.user_comparator()->Name(),
- "does not match existing comparator " +
- edit.comparator_);
- }
- }
-
- // Write out each individual edit
- if (verbose) {
- printf("*************************Edit[%d] = %s\n",
- count, edit.DebugString(hex).c_str());
- }
- count++;
-
- if (s.ok()) {
- builder.Apply(&edit);
- }
-
- if (edit.has_log_number_) {
- log_number = edit.log_number_;
- have_log_number = true;
- }
-
- if (edit.has_prev_log_number_) {
- prev_log_number = edit.prev_log_number_;
- have_prev_log_number = true;
- }
-
- if (edit.has_next_file_number_) {
- next_file = edit.next_file_number_;
- have_next_file = true;
- }
-
- if (edit.has_last_sequence_) {
- last_sequence = edit.last_sequence_;
- have_last_sequence = true;
- }
- }
- }
- file.reset();
-
- if (s.ok()) {
- if (!have_next_file) {
- s = Status::Corruption("no meta-nextfile entry in descriptor");
- printf("no meta-nextfile entry in descriptor");
- } else if (!have_log_number) {
- s = Status::Corruption("no meta-lognumber entry in descriptor");
- printf("no meta-lognumber entry in descriptor");
- } else if (!have_last_sequence) {
- printf("no last-sequence-number entry in descriptor");
- s = Status::Corruption("no last-sequence-number entry in descriptor");
- }
-
- if (!have_prev_log_number) {
- prev_log_number = 0;
- }
-
- MarkFileNumberUsed(prev_log_number);
- MarkFileNumberUsed(log_number);
- }
-
- if (s.ok()) {
- Version* v = new Version(this, 0);
- builder.SaveTo(v);
-
- // Install recovered version
- std::vector<uint64_t> size_being_compacted(NumberLevels()-1);
- SizeBeingCompacted(size_being_compacted);
- Finalize(v, size_being_compacted);
-
- AppendVersion(v);
- manifest_file_number_ = next_file;
- next_file_number_ = next_file + 1;
- last_sequence_ = last_sequence;
- log_number_ = log_number;
- prev_log_number_ = prev_log_number;
-
- printf("manifest_file_number %lu next_file_number %lu last_sequence "
- "%lu log_number %lu prev_log_number %lu\n",
- (unsigned long)manifest_file_number_,
- (unsigned long)next_file_number_,
- (unsigned long)last_sequence,
- (unsigned long)log_number,
- (unsigned long)prev_log_number);
- printf("%s \n", v->DebugString(hex).c_str());
- }
-
- return s;
-}
-
-void VersionSet::MarkFileNumberUsed(uint64_t number) {
- if (next_file_number_ <= number) {
- next_file_number_ = number + 1;
- }
-}
-
-void VersionSet::Finalize(Version* v,
- std::vector<uint64_t>& size_being_compacted) {
-
- double max_score = 0;
- int max_score_level = 0;
-
- int num_levels_to_check =
- (options_->compaction_style != kCompactionStyleUniversal) ?
- NumberLevels() - 1 : 1;
-
- for (int level = 0; level < num_levels_to_check; level++) {
-
- double score;
- if (level == 0) {
- // We treat level-0 specially by bounding the number of files
- // instead of number of bytes for two reasons:
- //
- // (1) With larger write-buffer sizes, it is nice not to do too
- // many level-0 compactions.
- //
- // (2) The files in level-0 are merged on every read and
- // therefore we wish to avoid too many files when the individual
- // file size is small (perhaps because of a small write-buffer
- // setting, or very high compression ratios, or lots of
- // overwrites/deletions).
- int numfiles = 0;
- for (unsigned int i = 0; i < v->files_[level].size(); i++) {
- if (!v->files_[level][i]->being_compacted) {
- numfiles++;
- }
- }
-
- // If we are slowing down writes, then we better compact that first
- if (numfiles >= options_->level0_stop_writes_trigger) {
- score = 1000000;
- // Log(options_->info_log, "XXX score l0 = 1000000000 max");
- } else if (numfiles >= options_->level0_slowdown_writes_trigger) {
- score = 10000;
- // Log(options_->info_log, "XXX score l0 = 1000000 medium");
- } else {
- score = numfiles /
- static_cast<double>(options_->level0_file_num_compaction_trigger);
- if (score >= 1) {
- // Log(options_->info_log, "XXX score l0 = %d least", (int)score);
- }
- }
- } else {
- // Compute the ratio of current size to size limit.
- const uint64_t level_bytes = TotalFileSize(v->files_[level]) -
- size_being_compacted[level];
- score = static_cast<double>(level_bytes) / MaxBytesForLevel(level);
- if (score > 1) {
- // Log(options_->info_log, "XXX score l%d = %d ", level, (int)score);
- }
- if (max_score < score) {
- max_score = score;
- max_score_level = level;
- }
- }
- v->compaction_level_[level] = level;
- v->compaction_score_[level] = score;
- }
-
- // update the max compaction score in levels 1 to n-1
- v->max_compaction_score_ = max_score;
- v->max_compaction_score_level_ = max_score_level;
-
- // sort all the levels based on their score. Higher scores get listed
- // first. Use bubble sort because the number of entries are small.
- for (int i = 0; i < NumberLevels()-2; i++) {
- for (int j = i+1; j < NumberLevels()-1; j++) {
- if (v->compaction_score_[i] < v->compaction_score_[j]) {
- double score = v->compaction_score_[i];
- int level = v->compaction_level_[i];
- v->compaction_score_[i] = v->compaction_score_[j];
- v->compaction_level_[i] = v->compaction_level_[j];
- v->compaction_score_[j] = score;
- v->compaction_level_[j] = level;
- }
- }
- }
-}
-
-// A static compator used to sort files based on their size
-// In normal mode: descending size
-static bool compareSizeDescending(const VersionSet::Fsize& first,
- const VersionSet::Fsize& second) {
- return (first.file->file_size > second.file->file_size);
-}
-// A static compator used to sort files based on their seqno
-// In universal style : descending seqno
-static bool compareSeqnoDescending(const VersionSet::Fsize& first,
- const VersionSet::Fsize& second) {
- if (first.file->smallest_seqno > second.file->smallest_seqno) {
- assert(first.file->largest_seqno > second.file->largest_seqno);
- return true;
- }
- assert(first.file->largest_seqno <= second.file->largest_seqno);
- return false;
-}
-
-// sort all files in level1 to level(n-1) based on file size
-void VersionSet::UpdateFilesBySize(Version* v) {
-
- // No need to sort the highest level because it is never compacted.
- int max_level = (options_->compaction_style == kCompactionStyleUniversal) ?
- NumberLevels() : NumberLevels() - 1;
-
- for (int level = 0; level < max_level; level++) {
-
- const std::vector<FileMetaData*>& files = v->files_[level];
- std::vector<int>& files_by_size = v->files_by_size_[level];
- assert(files_by_size.size() == 0);
-
- // populate a temp vector for sorting based on size
- std::vector<Fsize> temp(files.size());
- for (unsigned int i = 0; i < files.size(); i++) {
- temp[i].index = i;
- temp[i].file = files[i];
- }
-
- // sort the top number_of_files_to_sort_ based on file size
- if (options_->compaction_style == kCompactionStyleUniversal) {
- int num = temp.size();
- std::partial_sort(temp.begin(), temp.begin() + num,
- temp.end(), compareSeqnoDescending);
- } else {
- int num = Version::number_of_files_to_sort_;
- if (num > (int)temp.size()) {
- num = temp.size();
- }
- std::partial_sort(temp.begin(), temp.begin() + num,
- temp.end(), compareSizeDescending);
- }
- assert(temp.size() == files.size());
-
- // initialize files_by_size_
- for (unsigned int i = 0; i < temp.size(); i++) {
- files_by_size.push_back(temp[i].index);
- }
- v->next_file_to_compact_by_size_[level] = 0;
- assert(v->files_[level].size() == v->files_by_size_[level].size());
- }
-}
-
-Status VersionSet::WriteSnapshot(log::Writer* log) {
- // TODO: Break up into multiple records to reduce memory usage on recovery?
-
- // Save metadata
- VersionEdit edit(NumberLevels());
- edit.SetComparatorName(icmp_.user_comparator()->Name());
-
- // Save compaction pointers
- for (int level = 0; level < NumberLevels(); level++) {
- if (!compact_pointer_[level].empty()) {
- InternalKey key;
- key.DecodeFrom(compact_pointer_[level]);
- edit.SetCompactPointer(level, key);
- }
- }
-
- // Save files
- for (int level = 0; level < NumberLevels(); level++) {
- const std::vector<FileMetaData*>& files = current_->files_[level];
- for (size_t i = 0; i < files.size(); i++) {
- const FileMetaData* f = files[i];
- edit.AddFile(level, f->number, f->file_size, f->smallest, f->largest,
- f->smallest_seqno, f->largest_seqno);
- }
- }
-
- std::string record;
- edit.EncodeTo(&record);
- return log->AddRecord(record);
-}
-
-int VersionSet::NumLevelFiles(int level) const {
- assert(level >= 0);
- assert(level < NumberLevels());
- return current_->files_[level].size();
-}
-
-const char* VersionSet::LevelSummary(LevelSummaryStorage* scratch) const {
- int len = snprintf(scratch->buffer, sizeof(scratch->buffer), "files[");
- for (int i = 0; i < NumberLevels(); i++) {
- int sz = sizeof(scratch->buffer) - len;
- int ret = snprintf(scratch->buffer + len, sz, "%d ",
- int(current_->files_[i].size()));
- if (ret < 0 || ret >= sz)
- break;
- len += ret;
- }
- snprintf(scratch->buffer + len, sizeof(scratch->buffer) - len, "]");
- return scratch->buffer;
-}
-
-const char* VersionSet::LevelDataSizeSummary(
- LevelSummaryStorage* scratch) const {
- int len = snprintf(scratch->buffer, sizeof(scratch->buffer), "files_size[");
- for (int i = 0; i < NumberLevels(); i++) {
- int sz = sizeof(scratch->buffer) - len;
- int ret = snprintf(scratch->buffer + len, sz, "%lu ",
- (unsigned long)NumLevelBytes(i));
- if (ret < 0 || ret >= sz)
- break;
- len += ret;
- }
- snprintf(scratch->buffer + len, sizeof(scratch->buffer) - len, "]");
- return scratch->buffer;
-}
-
-const char* VersionSet::LevelFileSummary(
- FileSummaryStorage* scratch, int level) const {
- int len = snprintf(scratch->buffer, sizeof(scratch->buffer), "files_size[");
- for (unsigned int i = 0; i < current_->files_[level].size(); i++) {
- FileMetaData* f = current_->files_[level][i];
- int sz = sizeof(scratch->buffer) - len;
- int ret = snprintf(scratch->buffer + len, sz,
- "#%lu(seq=%lu,sz=%lu,%lu) ",
- (unsigned long)f->number,
- (unsigned long)f->smallest_seqno,
- (unsigned long)f->file_size,
- (unsigned long)f->being_compacted);
- if (ret < 0 || ret >= sz)
- break;
- len += ret;
- }
- snprintf(scratch->buffer + len, sizeof(scratch->buffer) - len, "]");
- return scratch->buffer;
-}
-
-// Opens the mainfest file and reads all records
-// till it finds the record we are looking for.
-bool VersionSet::ManifestContains(const std::string& record) const {
- std::string fname = DescriptorFileName(dbname_, manifest_file_number_);
- Log(options_->info_log, "ManifestContains: checking %s\n", fname.c_str());
- unique_ptr<SequentialFile> file;
- Status s = env_->NewSequentialFile(fname, &file, storage_options_);
- if (!s.ok()) {
- Log(options_->info_log, "ManifestContains: %s\n", s.ToString().c_str());
- Log(options_->info_log,
- "ManifestContains: is unable to reopen the manifest file %s",
- fname.c_str());
- return false;
- }
- log::Reader reader(std::move(file), nullptr, true/*checksum*/, 0);
- Slice r;
- std::string scratch;
- bool result = false;
- while (reader.ReadRecord(&r, &scratch)) {
- if (r == Slice(record)) {
- result = true;
- break;
- }
- }
- Log(options_->info_log, "ManifestContains: result = %d\n", result ? 1 : 0);
- return result;
-}
-
-
-uint64_t VersionSet::ApproximateOffsetOf(Version* v, const InternalKey& ikey) {
- uint64_t result = 0;
- for (int level = 0; level < NumberLevels(); level++) {
- const std::vector<FileMetaData*>& files = v->files_[level];
- for (size_t i = 0; i < files.size(); i++) {
- if (icmp_.Compare(files[i]->largest, ikey) <= 0) {
- // Entire file is before "ikey", so just add the file size
- result += files[i]->file_size;
- } else if (icmp_.Compare(files[i]->smallest, ikey) > 0) {
- // Entire file is after "ikey", so ignore
- if (level > 0) {
- // Files other than level 0 are sorted by meta->smallest, so
- // no further files in this level will contain data for
- // "ikey".
- break;
- }
- } else {
- // "ikey" falls in the range for this table. Add the
- // approximate offset of "ikey" within the table.
- TableReader* table_reader_ptr;
- Iterator* iter = table_cache_->NewIterator(
- ReadOptions(), storage_options_, files[i]->number,
- files[i]->file_size, &table_reader_ptr);
- if (table_reader_ptr != nullptr) {
- result += table_reader_ptr->ApproximateOffsetOf(ikey.Encode());
- }
- delete iter;
- }
- }
- }
- return result;
-}
-
-void VersionSet::AddLiveFiles(std::vector<uint64_t>* live_list) {
- // pre-calculate space requirement
- int64_t total_files = 0;
- for (Version* v = dummy_versions_.next_;
- v != &dummy_versions_;
- v = v->next_) {
- for (int level = 0; level < NumberLevels(); level++) {
- total_files += v->files_[level].size();
- }
- }
-
- // just one time extension to the right size
- live_list->reserve(live_list->size() + total_files);
-
- for (Version* v = dummy_versions_.next_;
- v != &dummy_versions_;
- v = v->next_) {
- for (int level = 0; level < NumberLevels(); level++) {
- for (const auto& f : v->files_[level]) {
- live_list->push_back(f->number);
- }
- }
- }
-}
-
-void VersionSet::AddLiveFilesCurrentVersion(std::set<uint64_t>* live) {
- Version* v = current_;
- for (int level = 0; level < NumberLevels(); level++) {
- const std::vector<FileMetaData*>& files = v->files_[level];
- for (size_t i = 0; i < files.size(); i++) {
- live->insert(files[i]->number);
- }
- }
-}
-
-int64_t VersionSet::NumLevelBytes(int level) const {
- assert(level >= 0);
- assert(level < NumberLevels());
- assert(current_);
- return TotalFileSize(current_->files_[level]);
-}
-
-int64_t VersionSet::MaxNextLevelOverlappingBytes() {
- uint64_t result = 0;
- std::vector<FileMetaData*> overlaps;
- for (int level = 1; level < NumberLevels() - 1; level++) {
- for (size_t i = 0; i < current_->files_[level].size(); i++) {
- const FileMetaData* f = current_->files_[level][i];
- current_->GetOverlappingInputs(level+1, &f->smallest, &f->largest,
- &overlaps);
- const uint64_t sum = TotalFileSize(overlaps);
- if (sum > result) {
- result = sum;
- }
- }
- }
- return result;
-}
-
-// Stores the minimal range that covers all entries in inputs in
-// *smallest, *largest.
-// REQUIRES: inputs is not empty
-void VersionSet::GetRange(const std::vector<FileMetaData*>& inputs,
- InternalKey* smallest,
- InternalKey* largest) {
- assert(!inputs.empty());
- smallest->Clear();
- largest->Clear();
- for (size_t i = 0; i < inputs.size(); i++) {
- FileMetaData* f = inputs[i];
- if (i == 0) {
- *smallest = f->smallest;
- *largest = f->largest;
- } else {
- if (icmp_.Compare(f->smallest, *smallest) < 0) {
- *smallest = f->smallest;
- }
- if (icmp_.Compare(f->largest, *largest) > 0) {
- *largest = f->largest;
- }
- }
- }
-}
-
-// Stores the minimal range that covers all entries in inputs1 and inputs2
-// in *smallest, *largest.
-// REQUIRES: inputs is not empty
-void VersionSet::GetRange2(const std::vector<FileMetaData*>& inputs1,
- const std::vector<FileMetaData*>& inputs2,
- InternalKey* smallest,
- InternalKey* largest) {
- std::vector<FileMetaData*> all = inputs1;
- all.insert(all.end(), inputs2.begin(), inputs2.end());
- GetRange(all, smallest, largest);
-}
-
-Iterator* VersionSet::MakeInputIterator(Compaction* c) {
- ReadOptions options;
- options.verify_checksums = options_->paranoid_checks;
- options.fill_cache = false;
-
- // Level-0 files have to be merged together. For other levels,
- // we will make a concatenating iterator per level.
- // TODO(opt): use concatenating iterator for level-0 if there is no overlap
- const int space = (c->level() == 0 ? c->inputs_[0].size() + 1 : 2);
- Iterator** list = new Iterator*[space];
- int num = 0;
- for (int which = 0; which < 2; which++) {
- if (!c->inputs_[which].empty()) {
- if (c->level() + which == 0) {
- const std::vector<FileMetaData*>& files = c->inputs_[which];
- for (size_t i = 0; i < files.size(); i++) {
- list[num++] = table_cache_->NewIterator(
- options, storage_options_compactions_,
- files[i]->number, files[i]->file_size, nullptr,
- true /* for compaction */);
- }
- } else {
- // Create concatenating iterator for the files from this level
- list[num++] = NewTwoLevelIterator(
- new Version::LevelFileNumIterator(icmp_, &c->inputs_[which]),
- &GetFileIterator, table_cache_, options, storage_options_,
- true /* for compaction */);
- }
- }
- }
- assert(num <= space);
- Iterator* result = NewMergingIterator(&icmp_, list, num);
- delete[] list;
- return result;
-}
-
-double VersionSet::MaxBytesForLevel(int level) {
- // Note: the result for level zero is not really used since we set
- // the level-0 compaction threshold based on number of files.
- assert(level >= 0);
- assert(level < NumberLevels());
- return level_max_bytes_[level];
-}
-
-uint64_t VersionSet::MaxFileSizeForLevel(int level) {
- assert(level >= 0);
- assert(level < NumberLevels());
- return max_file_size_[level];
-}
-
-uint64_t VersionSet::ExpandedCompactionByteSizeLimit(int level) {
- uint64_t result = MaxFileSizeForLevel(level);
- result *= options_->expanded_compaction_factor;
- return result;
-}
-
-uint64_t VersionSet::MaxGrandParentOverlapBytes(int level) {
- uint64_t result = MaxFileSizeForLevel(level);
- result *= options_->max_grandparent_overlap_factor;
- return result;
-}
-
-// verify that the files listed in this compaction are present
-// in the current version
-bool VersionSet::VerifyCompactionFileConsistency(Compaction* c) {
-#ifndef NDEBUG
- if (c->input_version_ != current_) {
- Log(options_->info_log, "VerifyCompactionFileConsistency version mismatch");
- }
-
- // verify files in level
- int level = c->level();
- for (int i = 0; i < c->num_input_files(0); i++) {
- uint64_t number = c->input(0,i)->number;
-
- // look for this file in the current version
- bool found = false;
- for (unsigned int j = 0; j < current_->files_[level].size(); j++) {
- FileMetaData* f = current_->files_[level][j];
- if (f->number == number) {
- found = true;
- break;
- }
- }
- if (!found) {
- return false; // input files non existant in current version
- }
- }
- // verify level+1 files
- level++;
- for (int i = 0; i < c->num_input_files(1); i++) {
- uint64_t number = c->input(1,i)->number;
-
- // look for this file in the current version
- bool found = false;
- for (unsigned int j = 0; j < current_->files_[level].size(); j++) {
- FileMetaData* f = current_->files_[level][j];
- if (f->number == number) {
- found = true;
- break;
- }
- }
- if (!found) {
- return false; // input files non existant in current version
- }
- }
-#endif
- return true; // everything good
-}
-
-// Clear all files to indicate that they are not being compacted
-// Delete this compaction from the list of running compactions.
-void VersionSet::ReleaseCompactionFiles(Compaction* c, Status status) {
- c->MarkFilesBeingCompacted(false);
- compactions_in_progress_[c->level()].erase(c);
- if (!status.ok()) {
- c->ResetNextCompactionIndex();
- }
-}
-
-// The total size of files that are currently being compacted
-// at at every level upto the penultimate level.
-void VersionSet::SizeBeingCompacted(std::vector<uint64_t>& sizes) {
- for (int level = 0; level < NumberLevels()-1; level++) {
- uint64_t total = 0;
- for (std::set<Compaction*>::iterator it =
- compactions_in_progress_[level].begin();
- it != compactions_in_progress_[level].end();
- ++it) {
- Compaction* c = (*it);
- assert(c->level() == level);
- for (int i = 0; i < c->num_input_files(0); i++) {
- total += c->input(0,i)->file_size;
- }
- }
- sizes[level] = total;
- }
-}
-
-//
-// Look at overall size amplification. If size amplification
-// exceeeds the configured value, then do a compaction
-// of the candidate files all the way upto the earliest
-// base file (overrides configured values of file-size ratios,
-// min_merge_width and max_merge_width).
-//
-Compaction* VersionSet::PickCompactionUniversalSizeAmp(
- int level, double score) {
- assert (level == 0);
-
- // percentage flexibilty while reducing size amplification
- uint64_t ratio = options_->compaction_options_universal.
- max_size_amplification_percent;
-
- // The files are sorted from newest first to oldest last.
- std::vector<int>& file_by_time = current_->files_by_size_[level];
- assert(file_by_time.size() == current_->files_[level].size());
-
- unsigned int candidate_count = 0;
- uint64_t candidate_size = 0;
- unsigned int start_index = 0;
- FileMetaData* f = nullptr;
-
- // Skip files that are already being compacted
- for (unsigned int loop = 0; loop < file_by_time.size() - 1; loop++) {
- int index = file_by_time[loop];
- f = current_->files_[level][index];
- if (!f->being_compacted) {
- start_index = loop; // Consider this as the first candidate.
- break;
- }
- Log(options_->info_log, "Universal: skipping file %lu[%d] compacted %s",
- (unsigned long)f->number,
- loop,
- " cannot be a candidate to reduce size amp.\n");
- f = nullptr;
- }
- if (f == nullptr) {
- return nullptr; // no candidate files
- }
-
- Log(options_->info_log, "Universal: First candidate file %lu[%d] %s",
- (unsigned long)f->number,
- start_index,
- " to reduce size amp.\n");
-
- // keep adding up all the remaining files
- for (unsigned int loop = start_index; loop < file_by_time.size() - 1;
- loop++) {
- int index = file_by_time[loop];
- f = current_->files_[level][index];
- if (f->being_compacted) {
- Log(options_->info_log,
- "Universal: Possible candidate file %lu[%d] %s.",
- (unsigned long)f->number,
- loop,
- " is already being compacted. No size amp reduction possible.\n");
- return nullptr;
- }
- candidate_size += f->file_size;
- candidate_count++;
- }
- if (candidate_count == 0) {
- return nullptr;
- }
-
- // size of earliest file
- int index = file_by_time[file_by_time.size() - 1];
- uint64_t earliest_file_size = current_->files_[level][index]->file_size;
-
- // size amplification = percentage of additional size
- if (candidate_size * 100 < ratio * earliest_file_size) {
- Log(options_->info_log,
- "Universal: size amp not needed. newer-files-total-size %lu "
- "earliest-file-size %lu",
- (unsigned long)candidate_size,
- (unsigned long)earliest_file_size);
- return nullptr;
- } else {
- Log(options_->info_log,
- "Universal: size amp needed. newer-files-total-size %lu "
- "earliest-file-size %lu",
- (unsigned long)candidate_size,
- (unsigned long)earliest_file_size);
- }
- assert(start_index >= 0 && start_index < file_by_time.size() - 1);
-
- // create a compaction request
- // We always compact all the files, so always compress.
- Compaction* c = new Compaction(level, level, MaxFileSizeForLevel(level),
- LLONG_MAX, NumberLevels(), false,
- true);
- c->score_ = score;
- for (unsigned int loop = start_index; loop < file_by_time.size(); loop++) {
- int index = file_by_time[loop];
- f = current_->files_[level][index];
- c->inputs_[0].push_back(f);
- Log(options_->info_log,
- "Universal: size amp picking file %lu[%d] with size %lu",
- (unsigned long)f->number,
- index,
- (unsigned long)f->file_size);
- }
- return c;
-}
-
-//
-// Consider compaction files based on their size differences with
-// the next file in time order.
-//
-Compaction* VersionSet::PickCompactionUniversalReadAmp(
- int level, double score, unsigned int ratio,
- unsigned int max_number_of_files_to_compact) {
-
- unsigned int min_merge_width =
- options_->compaction_options_universal.min_merge_width;
- unsigned int max_merge_width =
- options_->compaction_options_universal.max_merge_width;
-
- // The files are sorted from newest first to oldest last.
- std::vector<int>& file_by_time = current_->files_by_size_[level];
- FileMetaData* f = nullptr;
- bool done = false;
- int start_index = 0;
- unsigned int candidate_count;
- assert(file_by_time.size() == current_->files_[level].size());
-
- unsigned int max_files_to_compact = std::min(max_merge_width,
- max_number_of_files_to_compact);
- min_merge_width = std::max(min_merge_width, 2U);
-
- // Considers a candidate file only if it is smaller than the
- // total size accumulated so far.
- for (unsigned int loop = 0; loop < file_by_time.size(); loop++) {
-
- candidate_count = 0;
-
- // Skip files that are already being compacted
- for (f = nullptr; loop < file_by_time.size(); loop++) {
- int index = file_by_time[loop];
- f = current_->files_[level][index];
-
- if (!f->being_compacted) {
- candidate_count = 1;
- break;
- }
- Log(options_->info_log,
- "Universal: file %lu[%d] being compacted, skipping",
- (unsigned long)f->number, loop);
- f = nullptr;
- }
-
- // This file is not being compacted. Consider it as the
- // first candidate to be compacted.
- uint64_t candidate_size = f != nullptr? f->file_size : 0;
- if (f != nullptr) {
- Log(options_->info_log, "Universal: Possible candidate file %lu[%d].",
- (unsigned long)f->number, loop);
- }
-
- // Check if the suceeding files need compaction.
- for (unsigned int i = loop+1;
- candidate_count < max_files_to_compact && i < file_by_time.size();
- i++) {
- int index = file_by_time[i];
- FileMetaData* f = current_->files_[level][index];
- if (f->being_compacted) {
- break;
- }
- // pick files if the total candidate file size (increased by the
- // specified ratio) is still larger than the next candidate file.
- uint64_t sz = (candidate_size * (100L + ratio)) /100;
- if (sz < f->file_size) {
- break;
- }
- candidate_count++;
- candidate_size += f->file_size;
- }
-
- // Found a series of consecutive files that need compaction.
- if (candidate_count >= (unsigned int)min_merge_width) {
- start_index = loop;
- done = true;
- break;
- } else {
- for (unsigned int i = loop;
- i < loop + candidate_count && i < file_by_time.size(); i++) {
- int index = file_by_time[i];
- FileMetaData* f = current_->files_[level][index];
- Log(options_->info_log,
- "Universal: Skipping file %lu[%d] with size %lu %d\n",
- (unsigned long)f->number,
- i,
- (unsigned long)f->file_size,
- f->being_compacted);
- }
- }
- }
- if (!done || candidate_count <= 1) {
- return nullptr;
- }
- unsigned int first_index_after = start_index + candidate_count;
- // Compression is enabled if files compacted earlier already reached
- // size ratio of compression.
- bool enable_compression = true;
- int ratio_to_compress =
- options_->compaction_options_universal.compression_size_percent;
- if (ratio_to_compress >= 0) {
- uint64_t total_size = TotalFileSize(current_->files_[level]);
- uint64_t older_file_size = 0;
- for (unsigned int i = file_by_time.size() - 1; i >= first_index_after;
- i--) {
- older_file_size += current_->files_[level][file_by_time[i]]->file_size;
- if (older_file_size * 100L >= total_size * (long) ratio_to_compress) {
- enable_compression = false;
- break;
- }
- }
- }
- Compaction* c = new Compaction(level, level, MaxFileSizeForLevel(level),
- LLONG_MAX, NumberLevels(), false,
- enable_compression);
- c->score_ = score;
-
- for (unsigned int i = start_index; i < first_index_after; i++) {
- int index = file_by_time[i];
- FileMetaData* f = current_->files_[level][index];
- c->inputs_[0].push_back(f);
- Log(options_->info_log, "Universal: Picking file %lu[%d] with size %lu\n",
- (unsigned long)f->number,
- i,
- (unsigned long)f->file_size);
- }
- return c;
-}
-
-//
-// Universal style of compaction. Pick files that are contiguous in
-// time-range to compact.
-//
-Compaction* VersionSet::PickCompactionUniversal(int level, double score) {
- assert (level == 0);
-
- if ((current_->files_[level].size() <
- (unsigned int)options_->level0_file_num_compaction_trigger)) {
- Log(options_->info_log, "Universal: nothing to do\n");
- return nullptr;
- }
- VersionSet::FileSummaryStorage tmp;
- Log(options_->info_log, "Universal: candidate files(%lu): %s\n",
- current_->files_[level].size(),
- LevelFileSummary(&tmp, 0));
-
- // Check for size amplification first.
- Compaction* c = PickCompactionUniversalSizeAmp(level, score);
- if (c == nullptr) {
-
- // Size amplification is within limits. Try reducing read
- // amplification while maintaining file size ratios.
- unsigned int ratio = options_->compaction_options_universal.size_ratio;
- c = PickCompactionUniversalReadAmp(level, score, ratio, UINT_MAX);
-
- // Size amplification and file size ratios are within configured limits.
- // If max read amplification is exceeding configured limits, then force
- // compaction without looking at filesize ratios and try to reduce
- // the number of files to fewer than level0_file_num_compaction_trigger.
- if (c == nullptr) {
- unsigned int num_files = current_->files_[level].size() -
- options_->level0_file_num_compaction_trigger;
- c = PickCompactionUniversalReadAmp(level, score, UINT_MAX, num_files);
- }
- }
- if (c == nullptr) {
- return nullptr;
- }
- assert(c->inputs_[0].size() > 1);
-
- // validate that all the chosen files are non overlapping in time
- FileMetaData* newerfile __attribute__((unused)) = nullptr;
- for (unsigned int i = 0; i < c->inputs_[0].size(); i++) {
- FileMetaData* f = c->inputs_[0][i];
- assert (f->smallest_seqno <= f->largest_seqno);
- assert(newerfile == nullptr ||
- newerfile->smallest_seqno > f->largest_seqno);
- newerfile = f;
- }
-
- // The files are sorted from newest first to oldest last.
- std::vector<int>& file_by_time = current_->files_by_size_[level];
-
- // Is the earliest file part of this compaction?
- int last_index = file_by_time[file_by_time.size()-1];
- FileMetaData* last_file = current_->files_[level][last_index];
- if (c->inputs_[0][c->inputs_[0].size()-1] == last_file) {
- c->bottommost_level_ = true;
- }
-
- // update statistics
- if (options_->statistics != nullptr) {
- options_->statistics->measureTime(NUM_FILES_IN_SINGLE_COMPACTION,
- c->inputs_[0].size());
- }
-
- c->input_version_ = current_;
- c->input_version_->Ref();
-
- // mark all the files that are being compacted
- c->MarkFilesBeingCompacted(true);
-
- // remember this currently undergoing compaction
- compactions_in_progress_[level].insert(c);
-
- // Record whether this compaction includes all sst files.
- // For now, it is only relevant in universal compaction mode.
- c->is_full_compaction_ = (c->inputs_[0].size() == current_->files_[0].size());
-
- return c;
-}
-
-Compaction* VersionSet::PickCompactionBySize(int level, double score) {
- Compaction* c = nullptr;
-
- // level 0 files are overlapping. So we cannot pick more
- // than one concurrent compactions at this level. This
- // could be made better by looking at key-ranges that are
- // being compacted at level 0.
- if (level == 0 && compactions_in_progress_[level].size() == 1) {
- return nullptr;
- }
-
- assert(level >= 0);
- assert(level+1 < NumberLevels());
- c = new Compaction(level, level+1, MaxFileSizeForLevel(level+1),
- MaxGrandParentOverlapBytes(level), NumberLevels());
- c->score_ = score;
-
- // Pick the largest file in this level that is not already
- // being compacted
- std::vector<int>& file_size = current_->files_by_size_[level];
-
- // record the first file that is not yet compacted
- int nextIndex = -1;
-
- for (unsigned int i = current_->next_file_to_compact_by_size_[level];
- i < file_size.size(); i++) {
- int index = file_size[i];
- FileMetaData* f = current_->files_[level][index];
-
- // check to verify files are arranged in descending size
- assert((i == file_size.size() - 1) ||
- (i >= Version::number_of_files_to_sort_-1) ||
- (f->file_size >= current_->files_[level][file_size[i+1]]->file_size));
-
- // do not pick a file to compact if it is being compacted
- // from n-1 level.
- if (f->being_compacted) {
- continue;
- }
-
- // remember the startIndex for the next call to PickCompaction
- if (nextIndex == -1) {
- nextIndex = i;
- }
-
- //if (i > Version::number_of_files_to_sort_) {
- // Log(options_->info_log, "XXX Looking at index %d", i);
- //}
-
- // Do not pick this file if its parents at level+1 are being compacted.
- // Maybe we can avoid redoing this work in SetupOtherInputs
- int parent_index = -1;
- if (ParentRangeInCompaction(&f->smallest, &f->largest, level,
- &parent_index)) {
- continue;
- }
- c->inputs_[0].push_back(f);
- c->base_index_ = index;
- c->parent_index_ = parent_index;
- break;
- }
-
- if (c->inputs_[0].empty()) {
- delete c;
- c = nullptr;
- }
-
- // store where to start the iteration in the next call to PickCompaction
- current_->next_file_to_compact_by_size_[level] = nextIndex;
-
- return c;
-}
-
-Compaction* VersionSet::PickCompaction() {
- Compaction* c = nullptr;
- int level = -1;
-
- // Compute the compactions needed. It is better to do it here
- // and also in LogAndApply(), otherwise the values could be stale.
- std::vector<uint64_t> size_being_compacted(NumberLevels()-1);
- current_->vset_->SizeBeingCompacted(size_being_compacted);
- Finalize(current_, size_being_compacted);
-
- // In universal style of compaction, compact L0 files back into L0.
- if (options_->compaction_style == kCompactionStyleUniversal) {
- int level = 0;
- c = PickCompactionUniversal(level, current_->compaction_score_[level]);
- return c;
- }
-
- // We prefer compactions triggered by too much data in a level over
- // the compactions triggered by seeks.
- //
- // Find the compactions by size on all levels.
- for (int i = 0; i < NumberLevels()-1; i++) {
- assert(i == 0 || current_->compaction_score_[i] <=
- current_->compaction_score_[i-1]);
- level = current_->compaction_level_[i];
- if ((current_->compaction_score_[i] >= 1)) {
- c = PickCompactionBySize(level, current_->compaction_score_[i]);
- ExpandWhileOverlapping(c);
- if (c != nullptr) {
- break;
- }
- }
- }
-
- // Find compactions needed by seeks
- FileMetaData* f = current_->file_to_compact_;
- if (c == nullptr && f != nullptr && !f->being_compacted) {
-
- level = current_->file_to_compact_level_;
- int parent_index = -1;
-
- // Only allow one level 0 compaction at a time.
- // Do not pick this file if its parents at level+1 are being compacted.
- if (level != 0 || compactions_in_progress_[0].empty()) {
- if(!ParentRangeInCompaction(&f->smallest, &f->largest, level,
- &parent_index)) {
- c = new Compaction(level, level+1, MaxFileSizeForLevel(level+1),
- MaxGrandParentOverlapBytes(level), NumberLevels(), true);
- c->inputs_[0].push_back(f);
- c->parent_index_ = parent_index;
- current_->file_to_compact_ = nullptr;
- ExpandWhileOverlapping(c);
- }
- }
- }
-
- if (c == nullptr) {
- return nullptr;
- }
-
- c->input_version_ = current_;
- c->input_version_->Ref();
-
- // Two level 0 compaction won't run at the same time, so don't need to worry
- // about files on level 0 being compacted.
- if (level == 0) {
- assert(compactions_in_progress_[0].empty());
- InternalKey smallest, largest;
- GetRange(c->inputs_[0], &smallest, &largest);
- // Note that the next call will discard the file we placed in
- // c->inputs_[0] earlier and replace it with an overlapping set
- // which will include the picked file.
- c->inputs_[0].clear();
- current_->GetOverlappingInputs(0, &smallest, &largest, &c->inputs_[0]);
-
- // If we include more L0 files in the same compaction run it can
- // cause the 'smallest' and 'largest' key to get extended to a
- // larger range. So, re-invoke GetRange to get the new key range
- GetRange(c->inputs_[0], &smallest, &largest);
- if (ParentRangeInCompaction(&smallest, &largest,
- level, &c->parent_index_)) {
- delete c;
- return nullptr;
- }
- assert(!c->inputs_[0].empty());
- }
-
- // Setup "level+1" files (inputs_[1])
- SetupOtherInputs(c);
-
- // mark all the files that are being compacted
- c->MarkFilesBeingCompacted(true);
-
- // Is this compaction creating a file at the bottommost level
- c->SetupBottomMostLevel(false);
-
- // remember this currently undergoing compaction
- compactions_in_progress_[level].insert(c);
-
- return c;
-}
-
-// Returns true if any one of the parent files are being compacted
-bool VersionSet::ParentRangeInCompaction(const InternalKey* smallest,
- const InternalKey* largest, int level, int* parent_index) {
- std::vector<FileMetaData*> inputs;
-
- current_->GetOverlappingInputs(level+1, smallest, largest,
- &inputs, *parent_index, parent_index);
- return FilesInCompaction(inputs);
-}
-
-// Returns true if any one of specified files are being compacted
-bool VersionSet::FilesInCompaction(std::vector<FileMetaData*>& files) {
- for (unsigned int i = 0; i < files.size(); i++) {
- if (files[i]->being_compacted) {
- return true;
- }
- }
- return false;
-}
-
-// Add more files to the inputs on "level" to make sure that
-// no newer version of a key is compacted to "level+1" while leaving an older
-// version in a "level". Otherwise, any Get() will search "level" first,
-// and will likely return an old/stale value for the key, since it always
-// searches in increasing order of level to find the value. This could
-// also scramble the order of merge operands. This function should be
-// called any time a new Compaction is created, and its inputs_[0] are
-// populated.
-//
-// Will set c to nullptr if it is impossible to apply this compaction.
-void VersionSet::ExpandWhileOverlapping(Compaction* c) {
- // If inputs are empty then there is nothing to expand.
- if (!c || c->inputs_[0].empty()) {
- return;
- }
-
- // GetOverlappingInputs will always do the right thing for level-0.
- // So we don't need to do any expansion if level == 0.
- if (c->level() == 0) {
- return;
- }
-
- const int level = c->level();
- InternalKey smallest, largest;
-
- // Keep expanding c->inputs_[0] until we are sure that there is a
- // "clean cut" boundary between the files in input and the surrounding files.
- // This will ensure that no parts of a key are lost during compaction.
- int hint_index = -1;
- size_t old_size;
- do {
- old_size = c->inputs_[0].size();
- GetRange(c->inputs_[0], &smallest, &largest);
- c->inputs_[0].clear();
- current_->GetOverlappingInputs(level, &smallest, &largest, &c->inputs_[0],
- hint_index, &hint_index);
- } while(c->inputs_[0].size() > old_size);
-
- // Get the new range
- GetRange(c->inputs_[0], &smallest, &largest);
-
- // If, after the expansion, there are files that are already under
- // compaction, then we must drop/cancel this compaction.
- int parent_index = -1;
- if (FilesInCompaction(c->inputs_[0]) ||
- ParentRangeInCompaction(&smallest, &largest, level, &parent_index)) {
- c->inputs_[0].clear();
- c->inputs_[1].clear();
- delete c;
- c = nullptr;
- }
-}
-
-// Populates the set of inputs from "level+1" that overlap with "level".
-// Will also attempt to expand "level" if that doesn't expand "level+1"
-// or cause "level" to include a file for compaction that has an overlapping
-// user-key with another file.
-void VersionSet::SetupOtherInputs(Compaction* c) {
- // If inputs are empty, then there is nothing to expand.
- if (c->inputs_[0].empty()) {
- return;
- }
-
- const int level = c->level();
- InternalKey smallest, largest;
-
- // Get the range one last time.
- GetRange(c->inputs_[0], &smallest, &largest);
-
- // Populate the set of next-level files (inputs_[1]) to include in compaction
- current_->GetOverlappingInputs(level+1, &smallest, &largest, &c->inputs_[1],
- c->parent_index_, &c->parent_index_);
-
- // Get entire range covered by compaction
- InternalKey all_start, all_limit;
- GetRange2(c->inputs_[0], c->inputs_[1], &all_start, &all_limit);
-
- // See if we can further grow the number of inputs in "level" without
- // changing the number of "level+1" files we pick up. We also choose NOT
- // to expand if this would cause "level" to include some entries for some
- // user key, while excluding other entries for the same user key. This
- // can happen when one user key spans multiple files.
- if (!c->inputs_[1].empty()) {
- std::vector<FileMetaData*> expanded0;
- current_->GetOverlappingInputs(level, &all_start, &all_limit, &expanded0,
- c->base_index_, nullptr);
- const uint64_t inputs0_size = TotalFileSize(c->inputs_[0]);
- const uint64_t inputs1_size = TotalFileSize(c->inputs_[1]);
- const uint64_t expanded0_size = TotalFileSize(expanded0);
- uint64_t limit = ExpandedCompactionByteSizeLimit(level);
- if (expanded0.size() > c->inputs_[0].size() &&
- inputs1_size + expanded0_size < limit &&
- !FilesInCompaction(expanded0) &&
- !current_->HasOverlappingUserKey(&expanded0, level)) {
- InternalKey new_start, new_limit;
- GetRange(expanded0, &new_start, &new_limit);
- std::vector<FileMetaData*> expanded1;
- current_->GetOverlappingInputs(level+1, &new_start, &new_limit,
- &expanded1, c->parent_index_,
- &c->parent_index_);
- if (expanded1.size() == c->inputs_[1].size() &&
- !FilesInCompaction(expanded1)) {
- Log(options_->info_log,
- "Expanding@%lu %lu+%lu (%lu+%lu bytes) to %lu+%lu (%lu+%lu bytes)"
- "\n",
- (unsigned long)level,
- (unsigned long)(c->inputs_[0].size()),
- (unsigned long)(c->inputs_[1].size()),
- (unsigned long)inputs0_size,
- (unsigned long)inputs1_size,
- (unsigned long)(expanded0.size()),
- (unsigned long)(expanded1.size()),
- (unsigned long)expanded0_size,
- (unsigned long)inputs1_size);
- smallest = new_start;
- largest = new_limit;
- c->inputs_[0] = expanded0;
- c->inputs_[1] = expanded1;
- GetRange2(c->inputs_[0], c->inputs_[1], &all_start, &all_limit);
- }
- }
- }
-
- // Compute the set of grandparent files that overlap this compaction
- // (parent == level+1; grandparent == level+2)
- if (level + 2 < NumberLevels()) {
- current_->GetOverlappingInputs(level + 2, &all_start, &all_limit,
- &c->grandparents_);
- }
-
- if (false) {
- Log(options_->info_log, "Compacting %d '%s' .. '%s'",
- level,
- smallest.DebugString().c_str(),
- largest.DebugString().c_str());
- }
-
- // Update the place where we will do the next compaction for this level.
- // We update this immediately instead of waiting for the VersionEdit
- // to be applied so that if the compaction fails, we will try a different
- // key range next time.
- compact_pointer_[level] = largest.Encode().ToString();
- c->edit_->SetCompactPointer(level, largest);
-}
-
-Status VersionSet::GetMetadataForFile(
- uint64_t number,
- int *filelevel,
- FileMetaData *meta) {
- for (int level = 0; level < NumberLevels(); level++) {
- const std::vector<FileMetaData*>& files = current_->files_[level];
- for (size_t i = 0; i < files.size(); i++) {
- if (files[i]->number == number) {
- *meta = *files[i];
- *filelevel = level;
- return Status::OK();
- }
- }
- }
- return Status::NotFound("File not present in any level");
-}
-
-void VersionSet::GetLiveFilesMetaData(
- std::vector<LiveFileMetaData> * metadata) {
- for (int level = 0; level < NumberLevels(); level++) {
- const std::vector<FileMetaData*>& files = current_->files_[level];
- for (size_t i = 0; i < files.size(); i++) {
- LiveFileMetaData filemetadata;
- filemetadata.name = TableFileName("", files[i]->number);
- filemetadata.level = level;
- filemetadata.size = files[i]->file_size;
- filemetadata.smallestkey = files[i]->smallest.user_key().ToString();
- filemetadata.largestkey = files[i]->largest.user_key().ToString();
- filemetadata.smallest_seqno = files[i]->smallest_seqno;
- filemetadata.largest_seqno = files[i]->largest_seqno;
- metadata->push_back(filemetadata);
- }
- }
-}
-
-void VersionSet::GetObsoleteFiles(std::vector<FileMetaData*>* files) {
- files->insert(files->end(),
- obsolete_files_.begin(),
- obsolete_files_.end());
- obsolete_files_.clear();
-}
-
-Compaction* VersionSet::CompactRange(
- int level,
- const InternalKey* begin,
- const InternalKey* end) {
- std::vector<FileMetaData*> inputs;
-
- // All files are 'overlapping' in universal style compaction.
- // We have to compact the entire range in one shot.
- if (options_->compaction_style == kCompactionStyleUniversal) {
- begin = nullptr;
- end = nullptr;
- }
- current_->GetOverlappingInputs(level, begin, end, &inputs);
- if (inputs.empty()) {
- return nullptr;
- }
-
- // Avoid compacting too much in one shot in case the range is large.
- // But we cannot do this for level-0 since level-0 files can overlap
- // and we must not pick one file and drop another older file if the
- // two files overlap.
- if (level > 0) {
- const uint64_t limit = MaxFileSizeForLevel(level) *
- options_->source_compaction_factor;
- uint64_t total = 0;
- for (size_t i = 0; i < inputs.size(); ++i) {
- uint64_t s = inputs[i]->file_size;
- total += s;
- if (total >= limit) {
- inputs.resize(i + 1);
- break;
- }
- }
- }
- int out_level = (options_->compaction_style == kCompactionStyleUniversal) ?
- level : level+1;
-
- Compaction* c = new Compaction(level, out_level, MaxFileSizeForLevel(out_level),
- MaxGrandParentOverlapBytes(level), NumberLevels());
-
- c->inputs_[0] = inputs;
- ExpandWhileOverlapping(c);
- if (c == nullptr) {
- Log(options_->info_log, "Could not compact due to expansion failure.\n");
- return nullptr;
- }
-
- c->input_version_ = current_;
- c->input_version_->Ref();
- SetupOtherInputs(c);
-
- // These files that are to be manaully compacted do not trample
- // upon other files because manual compactions are processed when
- // the system has a max of 1 background compaction thread.
- c->MarkFilesBeingCompacted(true);
-
- // Is this compaction creating a file at the bottommost level
- c->SetupBottomMostLevel(true);
- return c;
-}
-
-Compaction::Compaction(int level, int out_level, uint64_t target_file_size,
- uint64_t max_grandparent_overlap_bytes, int number_levels,
- bool seek_compaction, bool enable_compression)
- : level_(level),
- out_level_(out_level),
- max_output_file_size_(target_file_size),
- maxGrandParentOverlapBytes_(max_grandparent_overlap_bytes),
- input_version_(nullptr),
- number_levels_(number_levels),
- seek_compaction_(seek_compaction),
- enable_compression_(enable_compression),
- grandparent_index_(0),
- seen_key_(false),
- overlapped_bytes_(0),
- base_index_(-1),
- parent_index_(-1),
- score_(0),
- bottommost_level_(false),
- is_full_compaction_(false),
- level_ptrs_(std::vector<size_t>(number_levels)) {
- edit_ = new VersionEdit(number_levels_);
- for (int i = 0; i < number_levels_; i++) {
- level_ptrs_[i] = 0;
- }
-}
-
-Compaction::~Compaction() {
- delete edit_;
- if (input_version_ != nullptr) {
- input_version_->Unref();
- }
-}
-
-bool Compaction::IsTrivialMove() const {
- // Avoid a move if there is lots of overlapping grandparent data.
- // Otherwise, the move could create a parent file that will require
- // a very expensive merge later on.
- return (num_input_files(0) == 1 &&
- num_input_files(1) == 0 &&
- TotalFileSize(grandparents_) <= maxGrandParentOverlapBytes_);
-}
-
-void Compaction::AddInputDeletions(VersionEdit* edit) {
- for (int which = 0; which < 2; which++) {
- for (size_t i = 0; i < inputs_[which].size(); i++) {
- edit->DeleteFile(level_ + which, inputs_[which][i]->number);
- }
- }
-}
-
-bool Compaction::IsBaseLevelForKey(const Slice& user_key) {
- if (input_version_->vset_->options_->compaction_style ==
- kCompactionStyleUniversal) {
- return bottommost_level_;
- }
- // Maybe use binary search to find right entry instead of linear search?
- const Comparator* user_cmp = input_version_->vset_->icmp_.user_comparator();
- for (int lvl = level_ + 2; lvl < number_levels_; lvl++) {
- const std::vector<FileMetaData*>& files = input_version_->files_[lvl];
- for (; level_ptrs_[lvl] < files.size(); ) {
- FileMetaData* f = files[level_ptrs_[lvl]];
- if (user_cmp->Compare(user_key, f->largest.user_key()) <= 0) {
- // We've advanced far enough
- if (user_cmp->Compare(user_key, f->smallest.user_key()) >= 0) {
- // Key falls in this file's range, so definitely not base level
- return false;
- }
- break;
- }
- level_ptrs_[lvl]++;
- }
- }
- return true;
-}
-
-bool Compaction::ShouldStopBefore(const Slice& internal_key) {
- // Scan to find earliest grandparent file that contains key.
- const InternalKeyComparator* icmp = &input_version_->vset_->icmp_;
- while (grandparent_index_ < grandparents_.size() &&
- icmp->Compare(internal_key,
- grandparents_[grandparent_index_]->largest.Encode()) > 0) {
- if (seen_key_) {
- overlapped_bytes_ += grandparents_[grandparent_index_]->file_size;
- }
- assert(grandparent_index_ + 1 >= grandparents_.size() ||
- icmp->Compare(grandparents_[grandparent_index_]->largest.Encode(),
- grandparents_[grandparent_index_+1]->smallest.Encode())
- < 0);
- grandparent_index_++;
- }
- seen_key_ = true;
-
- if (overlapped_bytes_ > maxGrandParentOverlapBytes_) {
- // Too much overlap for current output; start new output
- overlapped_bytes_ = 0;
- return true;
- } else {
- return false;
- }
-}
-
-// Mark (or clear) each file that is being compacted
-void Compaction::MarkFilesBeingCompacted(bool value) {
- for (int i = 0; i < 2; i++) {
- std::vector<FileMetaData*> v = inputs_[i];
- for (unsigned int j = 0; j < inputs_[i].size(); j++) {
- assert(value ? !inputs_[i][j]->being_compacted :
- inputs_[i][j]->being_compacted);
- inputs_[i][j]->being_compacted = value;
- }
- }
-}
-
-// Is this compaction producing files at the bottommost level?
-void Compaction::SetupBottomMostLevel(bool isManual) {
- if (input_version_->vset_->options_->compaction_style ==
- kCompactionStyleUniversal) {
- // If universal compaction style is used and manual
- // compaction is occuring, then we are guaranteed that
- // all files will be picked in a single compaction
- // run. We can safely set bottommost_level_ = true.
- // If it is not manual compaction, then bottommost_level_
- // is already set when the Compaction was created.
- if (isManual) {
- bottommost_level_ = true;
- }
- return;
- }
- bottommost_level_ = true;
- int num_levels = input_version_->vset_->NumberLevels();
- for (int i = level() + 2; i < num_levels; i++) {
- if (input_version_->vset_->NumLevelFiles(i) > 0) {
- bottommost_level_ = false;
- break;
- }
- }
-}
-
-void Compaction::ReleaseInputs() {
- if (input_version_ != nullptr) {
- input_version_->Unref();
- input_version_ = nullptr;
- }
-}
-
-void Compaction::ResetNextCompactionIndex() {
- input_version_->ResetNextCompactionIndex(level_);
-}
-
-static void InputSummary(std::vector<FileMetaData*>& files,
- char* output,
- int len) {
- int write = 0;
- for (unsigned int i = 0; i < files.size(); i++) {
- int sz = len - write;
- int ret = snprintf(output + write, sz, "%lu(%lu) ",
- (unsigned long)files.at(i)->number,
- (unsigned long)files.at(i)->file_size);
- if (ret < 0 || ret >= sz)
- break;
- write += ret;
- }
-}
-
-void Compaction::Summary(char* output, int len) {
- int write = snprintf(output, len,
- "Base version %lu Base level %d, seek compaction:%d, inputs:",
- (unsigned long)input_version_->GetVersionNumber(),
- level_,
- seek_compaction_);
- if (write < 0 || write > len) {
- return;
- }
-
- char level_low_summary[100];
- InputSummary(inputs_[0], level_low_summary, sizeof(level_low_summary));
- char level_up_summary[100];
- if (inputs_[1].size()) {
- InputSummary(inputs_[1], level_up_summary, sizeof(level_up_summary));
- } else {
- level_up_summary[0] = '\0';
- }
-
- snprintf(output + write, len - write, "[%s],[%s]",
- level_low_summary, level_up_summary);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// The representation of a DBImpl consists of a set of Versions. The
-// newest version is called "current". Older versions may be kept
-// around to provide a consistent view to live iterators.
-//
-// Each Version keeps track of a set of Table files per level. The
-// entire set of versions is maintained in a VersionSet.
-//
-// Version,VersionSet are thread-compatible, but require external
-// synchronization on all accesses.
-
-#pragma once
-#include <map>
-#include <memory>
-#include <set>
-#include <vector>
-#include <deque>
-#include "db/dbformat.h"
-#include "db/version_edit.h"
-#include "port/port.h"
-#include "db/table_cache.h"
-
-namespace rocksdb {
-
-namespace log { class Writer; }
-
-class Compaction;
-class Iterator;
-class MemTable;
-class TableCache;
-class Version;
-class VersionSet;
-
-// Return the smallest index i such that files[i]->largest >= key.
-// Return files.size() if there is no such file.
-// REQUIRES: "files" contains a sorted list of non-overlapping files.
-extern int FindFile(const InternalKeyComparator& icmp,
- const std::vector<FileMetaData*>& files,
- const Slice& key);
-
-// Returns true iff some file in "files" overlaps the user key range
-// [*smallest,*largest].
-// smallest==nullptr represents a key smaller than all keys in the DB.
-// largest==nullptr represents a key largest than all keys in the DB.
-// REQUIRES: If disjoint_sorted_files, files[] contains disjoint ranges
-// in sorted order.
-extern bool SomeFileOverlapsRange(
- const InternalKeyComparator& icmp,
- bool disjoint_sorted_files,
- const std::vector<FileMetaData*>& files,
- const Slice* smallest_user_key,
- const Slice* largest_user_key);
-
-class Version {
- public:
- // Append to *iters a sequence of iterators that will
- // yield the contents of this Version when merged together.
- // REQUIRES: This version has been saved (see VersionSet::SaveTo)
- void AddIterators(const ReadOptions&, const EnvOptions& soptions,
- std::vector<Iterator*>* iters);
-
- // Lookup the value for key. If found, store it in *val and
- // return OK. Else return a non-OK status. Fills *stats.
- // Uses *operands to store merge_operator operations to apply later
- // REQUIRES: lock is not held
- struct GetStats {
- FileMetaData* seek_file;
- int seek_file_level;
- };
- void Get(const ReadOptions&, const LookupKey& key, std::string* val,
- Status* status, std::deque<std::string>* operands, GetStats* stats,
- const Options& db_option,
- bool* value_found = nullptr);
-
- // Adds "stats" into the current state. Returns true if a new
- // compaction may need to be triggered, false otherwise.
- // REQUIRES: lock is held
- bool UpdateStats(const GetStats& stats);
-
- // Reference count management (so Versions do not disappear out from
- // under live iterators)
- void Ref();
- void Unref();
-
- void GetOverlappingInputs(
- int level,
- const InternalKey* begin, // nullptr means before all keys
- const InternalKey* end, // nullptr means after all keys
- std::vector<FileMetaData*>* inputs,
- int hint_index = -1, // index of overlap file
- int* file_index = nullptr); // return index of overlap file
-
- void GetOverlappingInputsBinarySearch(
- int level,
- const Slice& begin, // nullptr means before all keys
- const Slice& end, // nullptr means after all keys
- std::vector<FileMetaData*>* inputs,
- int hint_index, // index of overlap file
- int* file_index); // return index of overlap file
-
- void ExtendOverlappingInputs(
- int level,
- const Slice& begin, // nullptr means before all keys
- const Slice& end, // nullptr means after all keys
- std::vector<FileMetaData*>* inputs,
- unsigned int index); // start extending from this index
-
- // Returns true iff some file in the specified level overlaps
- // some part of [*smallest_user_key,*largest_user_key].
- // smallest_user_key==NULL represents a key smaller than all keys in the DB.
- // largest_user_key==NULL represents a key largest than all keys in the DB.
- bool OverlapInLevel(int level,
- const Slice* smallest_user_key,
- const Slice* largest_user_key);
-
- // Returns true iff the first or last file in inputs contains
- // an overlapping user key to the file "just outside" of it (i.e.
- // just after the last file, or just before the first file)
- // REQUIRES: "*inputs" is a sorted list of non-overlapping files
- bool HasOverlappingUserKey(const std::vector<FileMetaData*>* inputs,
- int level);
-
-
- // Return the level at which we should place a new memtable compaction
- // result that covers the range [smallest_user_key,largest_user_key].
- int PickLevelForMemTableOutput(const Slice& smallest_user_key,
- const Slice& largest_user_key);
-
- int NumFiles(int level) const { return files_[level].size(); }
-
- // Return a human readable string that describes this version's contents.
- std::string DebugString(bool hex = false) const;
-
- // Returns the version nuber of this version
- uint64_t GetVersionNumber() {
- return version_number_;
- }
-
- private:
- friend class Compaction;
- friend class VersionSet;
- friend class DBImpl;
-
- class LevelFileNumIterator;
- Iterator* NewConcatenatingIterator(const ReadOptions&,
- const EnvOptions& soptions,
- int level) const;
- bool PrefixMayMatch(const ReadOptions& options, const EnvOptions& soptions,
- const Slice& internal_prefix, Iterator* level_iter) const;
-
- VersionSet* vset_; // VersionSet to which this Version belongs
- Version* next_; // Next version in linked list
- Version* prev_; // Previous version in linked list
- int refs_; // Number of live refs to this version
-
- // List of files per level, files in each level are arranged
- // in increasing order of keys
- std::vector<FileMetaData*>* files_;
-
- // A list for the same set of files that are stored in files_,
- // but files in each level are now sorted based on file
- // size. The file with the largest size is at the front.
- // This vector stores the index of the file from files_.
- std::vector< std::vector<int> > files_by_size_;
-
- // An index into files_by_size_ that specifies the first
- // file that is not yet compacted
- std::vector<int> next_file_to_compact_by_size_;
-
- // Only the first few entries of files_by_size_ are sorted.
- // There is no need to sort all the files because it is likely
- // that on a running system, we need to look at only the first
- // few largest files because a new version is created every few
- // seconds/minutes (because of concurrent compactions).
- static const int number_of_files_to_sort_ = 50;
-
- // Next file to compact based on seek stats.
- FileMetaData* file_to_compact_;
- int file_to_compact_level_;
-
- // Level that should be compacted next and its compaction score.
- // Score < 1 means compaction is not strictly needed. These fields
- // are initialized by Finalize().
- // The most critical level to be compacted is listed first
- // These are used to pick the best compaction level
- std::vector<double> compaction_score_;
- std::vector<int> compaction_level_;
- double max_compaction_score_; // max score in l1 to ln-1
- int max_compaction_score_level_; // level on which max score occurs
-
- // The offset in the manifest file where this version is stored.
- uint64_t offset_manifest_file_;
-
- // A version number that uniquely represents this version. This is
- // used for debugging and logging purposes only.
- uint64_t version_number_;
-
- explicit Version(VersionSet* vset, uint64_t version_number = 0);
-
- ~Version();
-
- // re-initializes the index that is used to offset into files_by_size_
- // to find the next compaction candidate file.
- void ResetNextCompactionIndex(int level) {
- next_file_to_compact_by_size_[level] = 0;
- }
-
- // No copying allowed
- Version(const Version&);
- void operator=(const Version&);
-};
-
-class VersionSet {
- public:
- VersionSet(const std::string& dbname,
- const Options* options,
- const EnvOptions& storage_options,
- TableCache* table_cache,
- const InternalKeyComparator*);
- ~VersionSet();
-
- // Apply *edit to the current version to form a new descriptor that
- // is both saved to persistent state and installed as the new
- // current version. Will release *mu while actually writing to the file.
- // REQUIRES: *mu is held on entry.
- // REQUIRES: no other thread concurrently calls LogAndApply()
- Status LogAndApply(VersionEdit* edit, port::Mutex* mu,
- bool new_descriptor_log = false);
-
- // Recover the last saved descriptor from persistent storage.
- Status Recover();
-
- // Try to reduce the number of levels. This call is valid when
- // only one level from the new max level to the old
- // max level containing files.
- // For example, a db currently has 7 levels [0-6], and a call to
- // to reduce to 5 [0-4] can only be executed when only one level
- // among [4-6] contains files.
- Status ReduceNumberOfLevels(int new_levels, port::Mutex* mu);
-
- // Return the current version.
- Version* current() const { return current_; }
-
- // Return the current manifest file number
- uint64_t ManifestFileNumber() const { return manifest_file_number_; }
-
- // Allocate and return a new file number
- uint64_t NewFileNumber() { return next_file_number_++; }
-
- // Arrange to reuse "file_number" unless a newer file number has
- // already been allocated.
- // REQUIRES: "file_number" was returned by a call to NewFileNumber().
- void ReuseFileNumber(uint64_t file_number) {
- if (next_file_number_ == file_number + 1) {
- next_file_number_ = file_number;
- }
- }
-
- // Return the number of Table files at the specified level.
- int NumLevelFiles(int level) const;
-
- // Return the combined file size of all files at the specified level.
- int64_t NumLevelBytes(int level) const;
-
- // Return the last sequence number.
- uint64_t LastSequence() const { return last_sequence_; }
-
- // Set the last sequence number to s.
- void SetLastSequence(uint64_t s) {
- assert(s >= last_sequence_);
- last_sequence_ = s;
- }
-
- // Mark the specified file number as used.
- void MarkFileNumberUsed(uint64_t number);
-
- // Return the current log file number.
- uint64_t LogNumber() const { return log_number_; }
-
- // Return the log file number for the log file that is currently
- // being compacted, or zero if there is no such log file.
- uint64_t PrevLogNumber() const { return prev_log_number_; }
-
- int NumberLevels() const { return num_levels_; }
-
- // Pick level and inputs for a new compaction.
- // Returns nullptr if there is no compaction to be done.
- // Otherwise returns a pointer to a heap-allocated object that
- // describes the compaction. Caller should delete the result.
- Compaction* PickCompaction();
-
- // Return a compaction object for compacting the range [begin,end] in
- // the specified level. Returns nullptr if there is nothing in that
- // level that overlaps the specified range. Caller should delete
- // the result.
- Compaction* CompactRange(
- int level,
- const InternalKey* begin,
- const InternalKey* end);
-
- // Return the maximum overlapping data (in bytes) at next level for any
- // file at a level >= 1.
- int64_t MaxNextLevelOverlappingBytes();
-
- // Create an iterator that reads over the compaction inputs for "*c".
- // The caller should delete the iterator when no longer needed.
- Iterator* MakeInputIterator(Compaction* c);
-
- // Returns true iff some level needs a compaction because it has
- // exceeded its target size.
- bool NeedsSizeCompaction() const {
- // In universal compaction case, this check doesn't really
- // check the compaction condition, but checks num of files threshold
- // only. We are not going to miss any compaction opportunity
- // but it's likely that more compactions are scheduled but
- // ending up with nothing to do. We can improve it later.
- // TODO: improve this function to be accurate for universal
- // compactions.
- int num_levels_to_check =
- (options_->compaction_style != kCompactionStyleUniversal) ?
- NumberLevels() - 1 : 1;
- for (int i = 0; i < num_levels_to_check; i++) {
- if (current_->compaction_score_[i] >= 1) {
- return true;
- }
- }
- return false;
- }
- // Returns true iff some level needs a compaction.
- bool NeedsCompaction() const {
- return ((current_->file_to_compact_ != nullptr) ||
- NeedsSizeCompaction());
- }
-
- // Returns the maxmimum compaction score for levels 1 to max
- double MaxCompactionScore() const {
- return current_->max_compaction_score_;
- }
-
- // See field declaration
- int MaxCompactionScoreLevel() const {
- return current_->max_compaction_score_level_;
- }
-
- // Add all files listed in any live version to *live.
- void AddLiveFiles(std::vector<uint64_t>* live_list);
-
- // Add all files listed in the current version to *live.
- void AddLiveFilesCurrentVersion(std::set<uint64_t>* live);
-
- // Return the approximate offset in the database of the data for
- // "key" as of version "v".
- uint64_t ApproximateOffsetOf(Version* v, const InternalKey& key);
-
- // Return a human-readable short (single-line) summary of the number
- // of files per level. Uses *scratch as backing store.
- struct LevelSummaryStorage {
- char buffer[100];
- };
- struct FileSummaryStorage {
- char buffer[1000];
- };
- const char* LevelSummary(LevelSummaryStorage* scratch) const;
-
- // printf contents (for debugging)
- Status DumpManifest(Options& options, std::string& manifestFileName,
- bool verbose, bool hex = false);
-
- // Return a human-readable short (single-line) summary of the data size
- // of files per level. Uses *scratch as backing store.
- const char* LevelDataSizeSummary(LevelSummaryStorage* scratch) const;
-
- // Return a human-readable short (single-line) summary of files
- // in a specified level. Uses *scratch as backing store.
- const char* LevelFileSummary(FileSummaryStorage* scratch, int level) const;
-
- // Return the size of the current manifest file
- const uint64_t ManifestFileSize() { return current_->offset_manifest_file_; }
-
- // For the specfied level, pick a compaction.
- // Returns nullptr if there is no compaction to be done.
- // If level is 0 and there is already a compaction on that level, this
- // function will return nullptr.
- Compaction* PickCompactionBySize(int level, double score);
-
- // Pick files to compact in Universal mode
- Compaction* PickCompactionUniversal(int level, double score);
-
- // Pick Universal compaction to limit read amplification
- Compaction* PickCompactionUniversalReadAmp(int level, double score,
- unsigned int ratio, unsigned int num_files);
-
- // Pick Universal compaction to limit space amplification.
- Compaction* PickCompactionUniversalSizeAmp(int level, double score);
-
- // Free up the files that were participated in a compaction
- void ReleaseCompactionFiles(Compaction* c, Status status);
-
- // verify that the files that we started with for a compaction
- // still exist in the current version and in the same original level.
- // This ensures that a concurrent compaction did not erroneously
- // pick the same files to compact.
- bool VerifyCompactionFileConsistency(Compaction* c);
-
- // used to sort files by size
- typedef struct fsize {
- int index;
- FileMetaData* file;
- } Fsize;
-
- // Sort all files for this version based on their file size and
- // record results in files_by_size_. The largest files are listed first.
- void UpdateFilesBySize(Version *v);
-
- // Get the max file size in a given level.
- uint64_t MaxFileSizeForLevel(int level);
-
- double MaxBytesForLevel(int level);
-
- Status GetMetadataForFile(
- uint64_t number, int *filelevel, FileMetaData *metadata);
-
- void GetLiveFilesMetaData(
- std::vector<LiveFileMetaData> *metadata);
-
- void GetObsoleteFiles(std::vector<FileMetaData*>* files);
-
- private:
- class Builder;
- struct ManifestWriter;
-
- friend class Compaction;
- friend class Version;
-
- void Init(int num_levels);
-
- void Finalize(Version* v, std::vector<uint64_t>&);
-
- void GetRange(const std::vector<FileMetaData*>& inputs,
- InternalKey* smallest,
- InternalKey* largest);
-
- void GetRange2(const std::vector<FileMetaData*>& inputs1,
- const std::vector<FileMetaData*>& inputs2,
- InternalKey* smallest,
- InternalKey* largest);
-
- void ExpandWhileOverlapping(Compaction* c);
-
- void SetupOtherInputs(Compaction* c);
-
- // Save current contents to *log
- Status WriteSnapshot(log::Writer* log);
-
- void AppendVersion(Version* v);
-
- bool ManifestContains(const std::string& record) const;
-
- uint64_t ExpandedCompactionByteSizeLimit(int level);
-
- uint64_t MaxGrandParentOverlapBytes(int level);
-
- Env* const env_;
- const std::string dbname_;
- const Options* const options_;
- TableCache* const table_cache_;
- const InternalKeyComparator icmp_;
- uint64_t next_file_number_;
- uint64_t manifest_file_number_;
- uint64_t last_sequence_;
- uint64_t log_number_;
- uint64_t prev_log_number_; // 0 or backing store for memtable being compacted
-
- int num_levels_;
-
- // Opened lazily
- unique_ptr<log::Writer> descriptor_log_;
- Version dummy_versions_; // Head of circular doubly-linked list of versions.
- Version* current_; // == dummy_versions_.prev_
-
- // Per-level key at which the next compaction at that level should start.
- // Either an empty string, or a valid InternalKey.
- std::string* compact_pointer_;
-
- // Per-level target file size.
- uint64_t* max_file_size_;
-
- // Per-level max bytes
- uint64_t* level_max_bytes_;
-
- // record all the ongoing compactions for all levels
- std::vector<std::set<Compaction*> > compactions_in_progress_;
-
- // generates a increasing version number for every new version
- uint64_t current_version_number_;
-
- // Queue of writers to the manifest file
- std::deque<ManifestWriter*> manifest_writers_;
-
- // Store the manifest file size when it is checked.
- // Save us the cost of checking file size twice in LogAndApply
- uint64_t last_observed_manifest_size_;
-
- std::vector<FileMetaData*> obsolete_files_;
-
- // storage options for all reads and writes except compactions
- const EnvOptions& storage_options_;
-
- // storage options used for compactions. This is a copy of
- // storage_options_ but with readaheads set to readahead_compactions_.
- const EnvOptions storage_options_compactions_;
-
- // No copying allowed
- VersionSet(const VersionSet&);
- void operator=(const VersionSet&);
-
- // Return the total amount of data that is undergoing
- // compactions per level
- void SizeBeingCompacted(std::vector<uint64_t>&);
-
- // Returns true if any one of the parent files are being compacted
- bool ParentRangeInCompaction(const InternalKey* smallest,
- const InternalKey* largest, int level, int* index);
-
- // Returns true if any one of the specified files are being compacted
- bool FilesInCompaction(std::vector<FileMetaData*>& files);
-
- void LogAndApplyHelper(Builder*b, Version* v,
- VersionEdit* edit, port::Mutex* mu);
-};
-
-// A Compaction encapsulates information about a compaction.
-class Compaction {
- public:
- ~Compaction();
-
- // Return the level that is being compacted. Inputs from "level"
- // will be merged.
- int level() const { return level_; }
-
- // Outputs will go to this level
- int output_level() const { return out_level_; }
-
- // Return the object that holds the edits to the descriptor done
- // by this compaction.
- VersionEdit* edit() { return edit_; }
-
- // "which" must be either 0 or 1
- int num_input_files(int which) const { return inputs_[which].size(); }
-
- // Return the ith input file at "level()+which" ("which" must be 0 or 1).
- FileMetaData* input(int which, int i) const { return inputs_[which][i]; }
-
- // Maximum size of files to build during this compaction.
- uint64_t MaxOutputFileSize() const { return max_output_file_size_; }
-
- // Whether compression will be enabled for compaction outputs
- bool enable_compression() const { return enable_compression_; }
-
- // Is this a trivial compaction that can be implemented by just
- // moving a single input file to the next level (no merging or splitting)
- bool IsTrivialMove() const;
-
- // Add all inputs to this compaction as delete operations to *edit.
- void AddInputDeletions(VersionEdit* edit);
-
- // Returns true if the information we have available guarantees that
- // the compaction is producing data in "level+1" for which no data exists
- // in levels greater than "level+1".
- bool IsBaseLevelForKey(const Slice& user_key);
-
- // Returns true iff we should stop building the current output
- // before processing "internal_key".
- bool ShouldStopBefore(const Slice& internal_key);
-
- // Release the input version for the compaction, once the compaction
- // is successful.
- void ReleaseInputs();
-
- void Summary(char* output, int len);
-
- // Return the score that was used to pick this compaction run.
- double score() const { return score_; }
-
- // Is this compaction creating a file in the bottom most level?
- bool BottomMostLevel() { return bottommost_level_; }
-
- // Does this compaction include all sst files?
- bool IsFullCompaction() { return is_full_compaction_; }
-
- private:
- friend class Version;
- friend class VersionSet;
-
- explicit Compaction(int level, int out_level, uint64_t target_file_size,
- uint64_t max_grandparent_overlap_bytes, int number_levels,
- bool seek_compaction = false, bool enable_compression = true);
-
- int level_;
- int out_level_; // levels to which output files are stored
- uint64_t max_output_file_size_;
- uint64_t maxGrandParentOverlapBytes_;
- Version* input_version_;
- VersionEdit* edit_;
- int number_levels_;
-
- bool seek_compaction_;
- bool enable_compression_;
-
- // Each compaction reads inputs from "level_" and "level_+1"
- std::vector<FileMetaData*> inputs_[2]; // The two sets of inputs
-
- // State used to check for number of of overlapping grandparent files
- // (parent == level_ + 1, grandparent == level_ + 2)
- std::vector<FileMetaData*> grandparents_;
- size_t grandparent_index_; // Index in grandparent_starts_
- bool seen_key_; // Some output key has been seen
- uint64_t overlapped_bytes_; // Bytes of overlap between current output
- // and grandparent files
- int base_index_; // index of the file in files_[level_]
- int parent_index_; // index of some file with same range in files_[level_+1]
- double score_; // score that was used to pick this compaction.
-
- // Is this compaction creating a file in the bottom most level?
- bool bottommost_level_;
- // Does this compaction include all sst files?
- bool is_full_compaction_;
-
- // level_ptrs_ holds indices into input_version_->levels_: our state
- // is that we are positioned at one of the file ranges for each
- // higher level than the ones involved in this compaction (i.e. for
- // all L >= level_ + 2).
- std::vector<size_t> level_ptrs_;
-
- // mark (or clear) all files that are being compacted
- void MarkFilesBeingCompacted(bool);
-
- // Initialize whether compaction producing files at the bottommost level
- void SetupBottomMostLevel(bool isManual);
-
- // In case of compaction error, reset the nextIndex that is used
- // to pick up the next file to be compacted from files_by_size_
- void ResetNextCompactionIndex();
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 Facebook. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "db/version_set.h"
-
-#include <algorithm>
-#include <stdio.h>
-#include "db/log_reader.h"
-#include "db/log_writer.h"
-#include "util/logging.h"
-
-namespace rocksdb {
-
-Status VersionSet::ReduceNumberOfLevels(int new_levels, port::Mutex* mu) {
-
- if(new_levels <= 1) {
- return Status::InvalidArgument(
- "Number of levels needs to be bigger than 1");
- }
-
- Version* current_version = current_;
- int current_levels = NumberLevels();
-
- if (current_levels <= new_levels) {
- return Status::OK();
- }
-
- // Make sure there are file only on one level from
- // (new_levels-1) to (current_levels-1)
- int first_nonempty_level = -1;
- int first_nonempty_level_filenum = 0;
- for (int i = new_levels - 1; i < current_levels; i++) {
- int file_num = NumLevelFiles(i);
- if (file_num != 0) {
- if (first_nonempty_level < 0) {
- first_nonempty_level = i;
- first_nonempty_level_filenum = file_num;
- } else {
- char msg[255];
- sprintf(msg, "Found at least two levels containing files: "
- "[%d:%d],[%d:%d].\n",
- first_nonempty_level, first_nonempty_level_filenum, i, file_num);
- return Status::InvalidArgument(msg);
- }
- }
- }
-
- Status st;
- std::vector<FileMetaData*>* old_files_list = current_version->files_;
- std::vector<FileMetaData*>* new_files_list =
- new std::vector<FileMetaData*>[new_levels];
- for (int i = 0; i < new_levels - 1; i++) {
- new_files_list[i] = old_files_list[i];
- }
-
- if (first_nonempty_level > 0) {
- new_files_list[new_levels - 1] = old_files_list[first_nonempty_level];
- }
-
- delete[] current_version->files_;
- current_version->files_ = new_files_list;
-
- delete[] compact_pointer_;
- delete[] max_file_size_;
- delete[] level_max_bytes_;
- num_levels_ = new_levels;
- compact_pointer_ = new std::string[new_levels];
- Init(new_levels);
- VersionEdit ve(new_levels);
- st = LogAndApply(&ve , mu, true);
- return st;
-}
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/version_set.h"
-#include "util/logging.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-class FindFileTest {
- public:
- std::vector<FileMetaData*> files_;
- bool disjoint_sorted_files_;
-
- FindFileTest() : disjoint_sorted_files_(true) { }
-
- ~FindFileTest() {
- for (unsigned int i = 0; i < files_.size(); i++) {
- delete files_[i];
- }
- }
-
- void Add(const char* smallest, const char* largest,
- SequenceNumber smallest_seq = 100,
- SequenceNumber largest_seq = 100) {
- FileMetaData* f = new FileMetaData;
- f->number = files_.size() + 1;
- f->smallest = InternalKey(smallest, smallest_seq, kTypeValue);
- f->largest = InternalKey(largest, largest_seq, kTypeValue);
- files_.push_back(f);
- }
-
- int Find(const char* key) {
- InternalKey target(key, 100, kTypeValue);
- InternalKeyComparator cmp(BytewiseComparator());
- return FindFile(cmp, files_, target.Encode());
- }
-
- bool Overlaps(const char* smallest, const char* largest) {
- InternalKeyComparator cmp(BytewiseComparator());
- Slice s(smallest != nullptr ? smallest : "");
- Slice l(largest != nullptr ? largest : "");
- return SomeFileOverlapsRange(cmp, disjoint_sorted_files_, files_,
- (smallest != nullptr ? &s : nullptr),
- (largest != nullptr ? &l : nullptr));
- }
-};
-
-TEST(FindFileTest, Empty) {
- ASSERT_EQ(0, Find("foo"));
- ASSERT_TRUE(! Overlaps("a", "z"));
- ASSERT_TRUE(! Overlaps(nullptr, "z"));
- ASSERT_TRUE(! Overlaps("a", nullptr));
- ASSERT_TRUE(! Overlaps(nullptr, nullptr));
-}
-
-TEST(FindFileTest, Single) {
- Add("p", "q");
- ASSERT_EQ(0, Find("a"));
- ASSERT_EQ(0, Find("p"));
- ASSERT_EQ(0, Find("p1"));
- ASSERT_EQ(0, Find("q"));
- ASSERT_EQ(1, Find("q1"));
- ASSERT_EQ(1, Find("z"));
-
- ASSERT_TRUE(! Overlaps("a", "b"));
- ASSERT_TRUE(! Overlaps("z1", "z2"));
- ASSERT_TRUE(Overlaps("a", "p"));
- ASSERT_TRUE(Overlaps("a", "q"));
- ASSERT_TRUE(Overlaps("a", "z"));
- ASSERT_TRUE(Overlaps("p", "p1"));
- ASSERT_TRUE(Overlaps("p", "q"));
- ASSERT_TRUE(Overlaps("p", "z"));
- ASSERT_TRUE(Overlaps("p1", "p2"));
- ASSERT_TRUE(Overlaps("p1", "z"));
- ASSERT_TRUE(Overlaps("q", "q"));
- ASSERT_TRUE(Overlaps("q", "q1"));
-
- ASSERT_TRUE(! Overlaps(nullptr, "j"));
- ASSERT_TRUE(! Overlaps("r", nullptr));
- ASSERT_TRUE(Overlaps(nullptr, "p"));
- ASSERT_TRUE(Overlaps(nullptr, "p1"));
- ASSERT_TRUE(Overlaps("q", nullptr));
- ASSERT_TRUE(Overlaps(nullptr, nullptr));
-}
-
-
-TEST(FindFileTest, Multiple) {
- Add("150", "200");
- Add("200", "250");
- Add("300", "350");
- Add("400", "450");
- ASSERT_EQ(0, Find("100"));
- ASSERT_EQ(0, Find("150"));
- ASSERT_EQ(0, Find("151"));
- ASSERT_EQ(0, Find("199"));
- ASSERT_EQ(0, Find("200"));
- ASSERT_EQ(1, Find("201"));
- ASSERT_EQ(1, Find("249"));
- ASSERT_EQ(1, Find("250"));
- ASSERT_EQ(2, Find("251"));
- ASSERT_EQ(2, Find("299"));
- ASSERT_EQ(2, Find("300"));
- ASSERT_EQ(2, Find("349"));
- ASSERT_EQ(2, Find("350"));
- ASSERT_EQ(3, Find("351"));
- ASSERT_EQ(3, Find("400"));
- ASSERT_EQ(3, Find("450"));
- ASSERT_EQ(4, Find("451"));
-
- ASSERT_TRUE(! Overlaps("100", "149"));
- ASSERT_TRUE(! Overlaps("251", "299"));
- ASSERT_TRUE(! Overlaps("451", "500"));
- ASSERT_TRUE(! Overlaps("351", "399"));
-
- ASSERT_TRUE(Overlaps("100", "150"));
- ASSERT_TRUE(Overlaps("100", "200"));
- ASSERT_TRUE(Overlaps("100", "300"));
- ASSERT_TRUE(Overlaps("100", "400"));
- ASSERT_TRUE(Overlaps("100", "500"));
- ASSERT_TRUE(Overlaps("375", "400"));
- ASSERT_TRUE(Overlaps("450", "450"));
- ASSERT_TRUE(Overlaps("450", "500"));
-}
-
-TEST(FindFileTest, MultipleNullBoundaries) {
- Add("150", "200");
- Add("200", "250");
- Add("300", "350");
- Add("400", "450");
- ASSERT_TRUE(! Overlaps(nullptr, "149"));
- ASSERT_TRUE(! Overlaps("451", nullptr));
- ASSERT_TRUE(Overlaps(nullptr, nullptr));
- ASSERT_TRUE(Overlaps(nullptr, "150"));
- ASSERT_TRUE(Overlaps(nullptr, "199"));
- ASSERT_TRUE(Overlaps(nullptr, "200"));
- ASSERT_TRUE(Overlaps(nullptr, "201"));
- ASSERT_TRUE(Overlaps(nullptr, "400"));
- ASSERT_TRUE(Overlaps(nullptr, "800"));
- ASSERT_TRUE(Overlaps("100", nullptr));
- ASSERT_TRUE(Overlaps("200", nullptr));
- ASSERT_TRUE(Overlaps("449", nullptr));
- ASSERT_TRUE(Overlaps("450", nullptr));
-}
-
-TEST(FindFileTest, OverlapSequenceChecks) {
- Add("200", "200", 5000, 3000);
- ASSERT_TRUE(! Overlaps("199", "199"));
- ASSERT_TRUE(! Overlaps("201", "300"));
- ASSERT_TRUE(Overlaps("200", "200"));
- ASSERT_TRUE(Overlaps("190", "200"));
- ASSERT_TRUE(Overlaps("200", "210"));
-}
-
-TEST(FindFileTest, OverlappingFiles) {
- Add("150", "600");
- Add("400", "500");
- disjoint_sorted_files_ = false;
- ASSERT_TRUE(! Overlaps("100", "149"));
- ASSERT_TRUE(! Overlaps("601", "700"));
- ASSERT_TRUE(Overlaps("100", "150"));
- ASSERT_TRUE(Overlaps("100", "200"));
- ASSERT_TRUE(Overlaps("100", "300"));
- ASSERT_TRUE(Overlaps("100", "400"));
- ASSERT_TRUE(Overlaps("100", "500"));
- ASSERT_TRUE(Overlaps("375", "400"));
- ASSERT_TRUE(Overlaps("450", "450"));
- ASSERT_TRUE(Overlaps("450", "500"));
- ASSERT_TRUE(Overlaps("450", "700"));
- ASSERT_TRUE(Overlaps("600", "700"));
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// WriteBatch::rep_ :=
-// sequence: fixed64
-// count: fixed32
-// data: record[count]
-// record :=
-// kTypeValue varstring varstring
-// kTypeMerge varstring varstring
-// kTypeDeletion varstring
-// varstring :=
-// len: varint32
-// data: uint8[len]
-
-#include "rocksdb/write_batch.h"
-
-#include "rocksdb/options.h"
-#include "rocksdb/statistics.h"
-#include "db/dbformat.h"
-#include "db/db_impl.h"
-#include "db/memtable.h"
-#include "db/snapshot.h"
-#include "db/write_batch_internal.h"
-#include "util/coding.h"
-#include <stdexcept>
-
-namespace rocksdb {
-
-// WriteBatch header has an 8-byte sequence number followed by a 4-byte count.
-static const size_t kHeader = 12;
-
-WriteBatch::WriteBatch() {
- Clear();
-}
-
-WriteBatch::~WriteBatch() { }
-
-WriteBatch::Handler::~Handler() { }
-
-void WriteBatch::Handler::Merge(const Slice& key, const Slice& value) {
- throw std::runtime_error("Handler::Merge not implemented!");
-}
-
-void WriteBatch::Handler::LogData(const Slice& blob) {
- // If the user has not specified something to do with blobs, then we ignore
- // them.
-}
-
-bool WriteBatch::Handler::Continue() {
- return true;
-}
-
-void WriteBatch::Clear() {
- rep_.clear();
- rep_.resize(kHeader);
-}
-
-int WriteBatch::Count() const {
- return WriteBatchInternal::Count(this);
-}
-
-Status WriteBatch::Iterate(Handler* handler) const {
- Slice input(rep_);
- if (input.size() < kHeader) {
- return Status::Corruption("malformed WriteBatch (too small)");
- }
-
- input.remove_prefix(kHeader);
- Slice key, value, blob;
- int found = 0;
- while (!input.empty() && handler->Continue()) {
- char tag = input[0];
- input.remove_prefix(1);
- switch (tag) {
- case kTypeValue:
- if (GetLengthPrefixedSlice(&input, &key) &&
- GetLengthPrefixedSlice(&input, &value)) {
- handler->Put(key, value);
- found++;
- } else {
- return Status::Corruption("bad WriteBatch Put");
- }
- break;
- case kTypeDeletion:
- if (GetLengthPrefixedSlice(&input, &key)) {
- handler->Delete(key);
- found++;
- } else {
- return Status::Corruption("bad WriteBatch Delete");
- }
- break;
- case kTypeMerge:
- if (GetLengthPrefixedSlice(&input, &key) &&
- GetLengthPrefixedSlice(&input, &value)) {
- handler->Merge(key, value);
- found++;
- } else {
- return Status::Corruption("bad WriteBatch Merge");
- }
- break;
- case kTypeLogData:
- if (GetLengthPrefixedSlice(&input, &blob)) {
- handler->LogData(blob);
- } else {
- return Status::Corruption("bad WriteBatch Blob");
- }
- break;
- default:
- return Status::Corruption("unknown WriteBatch tag");
- }
- }
- if (found != WriteBatchInternal::Count(this)) {
- return Status::Corruption("WriteBatch has wrong count");
- } else {
- return Status::OK();
- }
-}
-
-int WriteBatchInternal::Count(const WriteBatch* b) {
- return DecodeFixed32(b->rep_.data() + 8);
-}
-
-void WriteBatchInternal::SetCount(WriteBatch* b, int n) {
- EncodeFixed32(&b->rep_[8], n);
-}
-
-SequenceNumber WriteBatchInternal::Sequence(const WriteBatch* b) {
- return SequenceNumber(DecodeFixed64(b->rep_.data()));
-}
-
-void WriteBatchInternal::SetSequence(WriteBatch* b, SequenceNumber seq) {
- EncodeFixed64(&b->rep_[0], seq);
-}
-
-void WriteBatch::Put(const Slice& key, const Slice& value) {
- WriteBatchInternal::SetCount(this, WriteBatchInternal::Count(this) + 1);
- rep_.push_back(static_cast<char>(kTypeValue));
- PutLengthPrefixedSlice(&rep_, key);
- PutLengthPrefixedSlice(&rep_, value);
-}
-
-void WriteBatch::Put(const SliceParts& key, const SliceParts& value) {
- WriteBatchInternal::SetCount(this, WriteBatchInternal::Count(this) + 1);
- rep_.push_back(static_cast<char>(kTypeValue));
- PutLengthPrefixedSliceParts(&rep_, key);
- PutLengthPrefixedSliceParts(&rep_, value);
-}
-
-void WriteBatch::Delete(const Slice& key) {
- WriteBatchInternal::SetCount(this, WriteBatchInternal::Count(this) + 1);
- rep_.push_back(static_cast<char>(kTypeDeletion));
- PutLengthPrefixedSlice(&rep_, key);
-}
-
-void WriteBatch::Merge(const Slice& key, const Slice& value) {
- WriteBatchInternal::SetCount(this, WriteBatchInternal::Count(this) + 1);
- rep_.push_back(static_cast<char>(kTypeMerge));
- PutLengthPrefixedSlice(&rep_, key);
- PutLengthPrefixedSlice(&rep_, value);
-}
-
-void WriteBatch::PutLogData(const Slice& blob) {
- rep_.push_back(static_cast<char>(kTypeLogData));
- PutLengthPrefixedSlice(&rep_, blob);
-}
-
-namespace {
-class MemTableInserter : public WriteBatch::Handler {
- public:
- SequenceNumber sequence_;
- MemTable* mem_;
- const Options* options_;
- DBImpl* db_;
- const bool filter_deletes_;
-
- MemTableInserter(SequenceNumber sequence, MemTable* mem, const Options* opts,
- DB* db, const bool filter_deletes)
- : sequence_(sequence),
- mem_(mem),
- options_(opts),
- db_(reinterpret_cast<DBImpl*>(db)),
- filter_deletes_(filter_deletes) {
- assert(mem_);
- if (filter_deletes_) {
- assert(options_);
- assert(db_);
- }
- }
-
- virtual void Put(const Slice& key, const Slice& value) {
- if (options_->inplace_update_support
- && mem_->Update(sequence_, kTypeValue, key, value)) {
- RecordTick(options_->statistics, NUMBER_KEYS_UPDATED);
- } else {
- mem_->Add(sequence_, kTypeValue, key, value);
- }
- sequence_++;
- }
- virtual void Merge(const Slice& key, const Slice& value) {
- mem_->Add(sequence_, kTypeMerge, key, value);
- sequence_++;
- }
- virtual void Delete(const Slice& key) {
- if (filter_deletes_) {
- SnapshotImpl read_from_snapshot;
- read_from_snapshot.number_ = sequence_;
- ReadOptions ropts;
- ropts.snapshot = &read_from_snapshot;
- std::string value;
- if (!db_->KeyMayExist(ropts, key, &value)) {
- RecordTick(options_->statistics, NUMBER_FILTERED_DELETES);
- return;
- }
- }
- mem_->Add(sequence_, kTypeDeletion, key, Slice());
- sequence_++;
- }
-};
-} // namespace
-
-Status WriteBatchInternal::InsertInto(const WriteBatch* b, MemTable* mem,
- const Options* opts, DB* db,
- const bool filter_deletes) {
- MemTableInserter inserter(WriteBatchInternal::Sequence(b), mem, opts, db,
- filter_deletes);
- return b->Iterate(&inserter);
-}
-
-void WriteBatchInternal::SetContents(WriteBatch* b, const Slice& contents) {
- assert(contents.size() >= kHeader);
- b->rep_.assign(contents.data(), contents.size());
-}
-
-void WriteBatchInternal::Append(WriteBatch* dst, const WriteBatch* src) {
- SetCount(dst, Count(dst) + Count(src));
- assert(src->rep_.size() >= kHeader);
- dst->rep_.append(src->rep_.data() + kHeader, src->rep_.size() - kHeader);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/types.h"
-#include "rocksdb/write_batch.h"
-#include "rocksdb/db.h"
-#include "rocksdb/options.h"
-
-namespace rocksdb {
-
-class MemTable;
-
-// WriteBatchInternal provides static methods for manipulating a
-// WriteBatch that we don't want in the public WriteBatch interface.
-class WriteBatchInternal {
- public:
- // Return the number of entries in the batch.
- static int Count(const WriteBatch* batch);
-
- // Set the count for the number of entries in the batch.
- static void SetCount(WriteBatch* batch, int n);
-
- // Return the seqeunce number for the start of this batch.
- static SequenceNumber Sequence(const WriteBatch* batch);
-
- // Store the specified number as the seqeunce number for the start of
- // this batch.
- static void SetSequence(WriteBatch* batch, SequenceNumber seq);
-
- static Slice Contents(const WriteBatch* batch) {
- return Slice(batch->rep_);
- }
-
- static size_t ByteSize(const WriteBatch* batch) {
- return batch->rep_.size();
- }
-
- static void SetContents(WriteBatch* batch, const Slice& contents);
-
- // Inserts batch entries into memtable
- // Drops deletes in batch if filter_del is set to true and
- // db->KeyMayExist returns false
- static Status InsertInto(const WriteBatch* batch, MemTable* memtable,
- const Options* opts, DB* db = nullptr,
- const bool filter_del = false);
-
- static void Append(WriteBatch* dst, const WriteBatch* src);
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/db.h"
-
-#include <memory>
-#include "db/memtable.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/env.h"
-#include "rocksdb/memtablerep.h"
-#include "util/logging.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-static std::string PrintContents(WriteBatch* b) {
- InternalKeyComparator cmp(BytewiseComparator());
- auto factory = std::make_shared<SkipListFactory>();
- MemTable* mem = new MemTable(cmp, factory);
- mem->Ref();
- std::string state;
- Options options;
- Status s = WriteBatchInternal::InsertInto(b, mem, &options);
- int count = 0;
- Iterator* iter = mem->NewIterator();
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- ParsedInternalKey ikey;
- memset((void *)&ikey, 0, sizeof(ikey));
- ASSERT_TRUE(ParseInternalKey(iter->key(), &ikey));
- switch (ikey.type) {
- case kTypeValue:
- state.append("Put(");
- state.append(ikey.user_key.ToString());
- state.append(", ");
- state.append(iter->value().ToString());
- state.append(")");
- count++;
- break;
- case kTypeMerge:
- state.append("Merge(");
- state.append(ikey.user_key.ToString());
- state.append(", ");
- state.append(iter->value().ToString());
- state.append(")");
- count++;
- break;
- case kTypeDeletion:
- state.append("Delete(");
- state.append(ikey.user_key.ToString());
- state.append(")");
- count++;
- break;
- case kTypeLogData:
- assert(false);
- break;
- }
- state.append("@");
- state.append(NumberToString(ikey.sequence));
- }
- delete iter;
- if (!s.ok()) {
- state.append(s.ToString());
- } else if (count != WriteBatchInternal::Count(b)) {
- state.append("CountMismatch()");
- }
- mem->Unref();
- return state;
-}
-
-class WriteBatchTest { };
-
-TEST(WriteBatchTest, Empty) {
- WriteBatch batch;
- ASSERT_EQ("", PrintContents(&batch));
- ASSERT_EQ(0, WriteBatchInternal::Count(&batch));
- ASSERT_EQ(0, batch.Count());
-}
-
-TEST(WriteBatchTest, Multiple) {
- WriteBatch batch;
- batch.Put(Slice("foo"), Slice("bar"));
- batch.Delete(Slice("box"));
- batch.Put(Slice("baz"), Slice("boo"));
- WriteBatchInternal::SetSequence(&batch, 100);
- ASSERT_EQ(100U, WriteBatchInternal::Sequence(&batch));
- ASSERT_EQ(3, WriteBatchInternal::Count(&batch));
- ASSERT_EQ("Put(baz, boo)@102"
- "Delete(box)@101"
- "Put(foo, bar)@100",
- PrintContents(&batch));
- ASSERT_EQ(3, batch.Count());
-}
-
-TEST(WriteBatchTest, Corruption) {
- WriteBatch batch;
- batch.Put(Slice("foo"), Slice("bar"));
- batch.Delete(Slice("box"));
- WriteBatchInternal::SetSequence(&batch, 200);
- Slice contents = WriteBatchInternal::Contents(&batch);
- WriteBatchInternal::SetContents(&batch,
- Slice(contents.data(),contents.size()-1));
- ASSERT_EQ("Put(foo, bar)@200"
- "Corruption: bad WriteBatch Delete",
- PrintContents(&batch));
-}
-
-TEST(WriteBatchTest, Append) {
- WriteBatch b1, b2;
- WriteBatchInternal::SetSequence(&b1, 200);
- WriteBatchInternal::SetSequence(&b2, 300);
- WriteBatchInternal::Append(&b1, &b2);
- ASSERT_EQ("",
- PrintContents(&b1));
- ASSERT_EQ(0, b1.Count());
- b2.Put("a", "va");
- WriteBatchInternal::Append(&b1, &b2);
- ASSERT_EQ("Put(a, va)@200",
- PrintContents(&b1));
- ASSERT_EQ(1, b1.Count());
- b2.Clear();
- b2.Put("b", "vb");
- WriteBatchInternal::Append(&b1, &b2);
- ASSERT_EQ("Put(a, va)@200"
- "Put(b, vb)@201",
- PrintContents(&b1));
- ASSERT_EQ(2, b1.Count());
- b2.Delete("foo");
- WriteBatchInternal::Append(&b1, &b2);
- ASSERT_EQ("Put(a, va)@200"
- "Put(b, vb)@202"
- "Put(b, vb)@201"
- "Delete(foo)@203",
- PrintContents(&b1));
- ASSERT_EQ(4, b1.Count());
-}
-
-namespace {
- struct TestHandler : public WriteBatch::Handler {
- std::string seen;
- virtual void Put(const Slice& key, const Slice& value) {
- seen += "Put(" + key.ToString() + ", " + value.ToString() + ")";
- }
- virtual void Merge(const Slice& key, const Slice& value) {
- seen += "Merge(" + key.ToString() + ", " + value.ToString() + ")";
- }
- virtual void LogData(const Slice& blob) {
- seen += "LogData(" + blob.ToString() + ")";
- }
- virtual void Delete(const Slice& key) {
- seen += "Delete(" + key.ToString() + ")";
- }
- };
-}
-
-TEST(WriteBatchTest, Blob) {
- WriteBatch batch;
- batch.Put(Slice("k1"), Slice("v1"));
- batch.Put(Slice("k2"), Slice("v2"));
- batch.Put(Slice("k3"), Slice("v3"));
- batch.PutLogData(Slice("blob1"));
- batch.Delete(Slice("k2"));
- batch.PutLogData(Slice("blob2"));
- batch.Merge(Slice("foo"), Slice("bar"));
- ASSERT_EQ(5, batch.Count());
- ASSERT_EQ("Merge(foo, bar)@4"
- "Put(k1, v1)@0"
- "Delete(k2)@3"
- "Put(k2, v2)@1"
- "Put(k3, v3)@2",
- PrintContents(&batch));
-
- TestHandler handler;
- batch.Iterate(&handler);
- ASSERT_EQ(
- "Put(k1, v1)"
- "Put(k2, v2)"
- "Put(k3, v3)"
- "LogData(blob1)"
- "Delete(k2)"
- "LogData(blob2)"
- "Merge(foo, bar)",
- handler.seen);
-}
-
-TEST(WriteBatchTest, Continue) {
- WriteBatch batch;
-
- struct Handler : public TestHandler {
- int num_seen = 0;
- virtual void Put(const Slice& key, const Slice& value) {
- ++num_seen;
- TestHandler::Put(key, value);
- }
- virtual void Merge(const Slice& key, const Slice& value) {
- ++num_seen;
- TestHandler::Merge(key, value);
- }
- virtual void LogData(const Slice& blob) {
- ++num_seen;
- TestHandler::LogData(blob);
- }
- virtual void Delete(const Slice& key) {
- ++num_seen;
- TestHandler::Delete(key);
- }
- virtual bool Continue() override {
- return num_seen < 3;
- }
- } handler;
-
- batch.Put(Slice("k1"), Slice("v1"));
- batch.PutLogData(Slice("blob1"));
- batch.Delete(Slice("k1"));
- batch.PutLogData(Slice("blob2"));
- batch.Merge(Slice("foo"), Slice("bar"));
- batch.Iterate(&handler);
- ASSERT_EQ(
- "Put(k1, v1)"
- "LogData(blob1)"
- "Delete(k1)",
- handler.seen);
-}
-
-TEST(WriteBatchTest, PutGatherSlices) {
- WriteBatch batch;
- batch.Put(Slice("foo"), Slice("bar"));
-
- {
- // Try a write where the key is one slice but the value is two
- Slice key_slice("baz");
- Slice value_slices[2] = { Slice("header"), Slice("payload") };
- batch.Put(SliceParts(&key_slice, 1),
- SliceParts(value_slices, 2));
- }
-
- {
- // One where the key is composite but the value is a single slice
- Slice key_slices[3] = { Slice("key"), Slice("part2"), Slice("part3") };
- Slice value_slice("value");
- batch.Put(SliceParts(key_slices, 3),
- SliceParts(&value_slice, 1));
- }
-
- WriteBatchInternal::SetSequence(&batch, 100);
- ASSERT_EQ("Put(baz, headerpayload)@101"
- "Put(foo, bar)@100"
- "Put(keypart2part3, value)@102",
- PrintContents(&batch));
- ASSERT_EQ(3, batch.Count());
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-This directory contains the hdfs extensions needed to make rocksdb store
-files in HDFS.
-
-The hdfs.h file is copied from the Apache Hadoop 1.0 source code.
-It defines the libhdfs library
-(http://hadoop.apache.org/common/docs/r0.20.2/libhdfs.html) to access
-data in HDFS. The libhdfs.a is copied from the Apache Hadoop 1.0 build.
-It implements the API defined in hdfs.h. If your hadoop cluster is running
-a different hadoop release, then install these two files manually from your
-hadoop distribution and then recompile rocksdb.
-
-The env_hdfs.h file defines the rocksdb objects that are needed to talk to an
-underlying filesystem.
-
-If you want to compile rocksdb with hdfs support, please set the following
-enviroment variables appropriately:
- USE_HDFS=1
- JAVA_HOME=/usr/local/jdk-6u22-64
- LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/jdk-6u22-64/jre/lib/amd64/server:/usr/local/jdk-6u22-64/jre/lib/amd64/:./snappy/libs
- make clean all db_bench
-
-To run dbbench,
- set CLASSPATH to include your hadoop distribution
- db_bench --hdfs="hdfs://hbaseudbperf001.snc1.facebook.com:9000"
-
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-
-#pragma once
-#include <algorithm>
-#include <stdio.h>
-#include <sys/time.h>
-#include <time.h>
-#include <iostream>
-#include "rocksdb/env.h"
-#include "rocksdb/status.h"
-
-#ifdef USE_HDFS
-#include "hdfs/hdfs.h"
-
-namespace rocksdb {
-
-static const std::string kProto = "hdfs://";
-static const std::string pathsep = "/";
-
-// Thrown during execution when there is an issue with the supplied
-// arguments.
-class HdfsUsageException : public std::exception { };
-
-// A simple exception that indicates something went wrong that is not
-// recoverable. The intention is for the message to be printed (with
-// nothing else) and the process terminate.
-class HdfsFatalException : public std::exception {
-public:
- explicit HdfsFatalException(const std::string& s) : what_(s) { }
- virtual ~HdfsFatalException() throw() { }
- virtual const char* what() const throw() {
- return what_.c_str();
- }
-private:
- const std::string what_;
-};
-
-//
-// The HDFS environment for rocksdb. This class overrides all the
-// file/dir access methods and delegates the thread-mgmt methods to the
-// default posix environment.
-//
-class HdfsEnv : public Env {
-
- public:
- HdfsEnv(const std::string& fsname) : fsname_(fsname) {
- posixEnv = Env::Default();
- fileSys_ = connectToPath(fsname_);
- }
-
- virtual ~HdfsEnv() {
- fprintf(stderr, "Destroying HdfsEnv::Default()\n");
- hdfsDisconnect(fileSys_);
- }
-
- virtual Status NewSequentialFile(const std::string& fname,
- SequentialFile** result);
-
- virtual Status NewRandomAccessFile(const std::string& fname,
- RandomAccessFile** result);
-
- virtual Status NewWritableFile(const std::string& fname,
- WritableFile** result);
-
- virtual Status NewRandomRWFile(const std::string& fname,
- unique_ptr<RandomRWFile>* result,
- const EnvOptions& options);
-
- virtual bool FileExists(const std::string& fname);
-
- virtual Status GetChildren(const std::string& path,
- std::vector<std::string>* result);
-
- virtual Status DeleteFile(const std::string& fname);
-
- virtual Status CreateDir(const std::string& name);
-
- virtual Status CreateDirIfMissing(const std::string& name);
-
- virtual Status DeleteDir(const std::string& name);
-
- virtual Status GetFileSize(const std::string& fname, uint64_t* size);
-
- virtual Status GetFileModificationTime(const std::string& fname,
- uint64_t* file_mtime);
-
- virtual Status RenameFile(const std::string& src, const std::string& target);
-
- virtual Status LockFile(const std::string& fname, FileLock** lock);
-
- virtual Status UnlockFile(FileLock* lock);
-
- virtual Status NewLogger(const std::string& fname, Logger** result);
-
- virtual void Schedule(void (*function)(void* arg), void* arg,
- Priority pri = LOW) {
- posixEnv->Schedule(function, arg, pri);
- }
-
- virtual void StartThread(void (*function)(void* arg), void* arg) {
- posixEnv->StartThread(function, arg);
- }
-
- virtual Status GetTestDirectory(std::string* path) {
- return posixEnv->GetTestDirectory(path);
- }
-
- virtual uint64_t NowMicros() {
- return posixEnv->NowMicros();
- }
-
- virtual void SleepForMicroseconds(int micros) {
- posixEnv->SleepForMicroseconds(micros);
- }
-
- virtual Status GetHostName(char* name, uint64_t len) {
- return posixEnv->GetHostName(name, len);
- }
-
- virtual Status GetCurrentTime(int64_t* unix_time) {
- return posixEnv->GetCurrentTime(unix_time);
- }
-
- virtual Status GetAbsolutePath(const std::string& db_path,
- std::string* output_path) {
- return posixEnv->GetAbsolutePath(db_path, output_path);
- }
-
- virtual void SetBackgroundThreads(int number, Priority pri = LOW) {
- posixEnv->SetBackgroundThreads(number, pri);
- }
-
- virtual std::string TimeToString(uint64_t number) {
- return posixEnv->TimeToString(number);
- }
-
- static uint64_t gettid() {
- assert(sizeof(pthread_t) <= sizeof(uint64_t));
- return (uint64_t)pthread_self();
- }
-
- private:
- std::string fsname_; // string of the form "hdfs://hostname:port/"
- hdfsFS fileSys_; // a single FileSystem object for all files
- Env* posixEnv; // This object is derived from Env, but not from
- // posixEnv. We have posixnv as an encapsulated
- // object here so that we can use posix timers,
- // posix threads, etc.
-
- /**
- * If the URI is specified of the form hdfs://server:port/path,
- * then connect to the specified cluster
- * else connect to default.
- */
- hdfsFS connectToPath(const std::string& uri) {
- if (uri.empty()) {
- return NULL;
- }
- if (uri.find(kProto) != 0) {
- // uri doesn't start with hdfs:// -> use default:0, which is special
- // to libhdfs.
- return hdfsConnectNewInstance("default", 0);
- }
- const std::string hostport = uri.substr(kProto.length());
-
- std::vector <std::string> parts;
- split(hostport, ':', parts);
- if (parts.size() != 2) {
- throw HdfsFatalException("Bad uri for hdfs " + uri);
- }
- // parts[0] = hosts, parts[1] = port/xxx/yyy
- std::string host(parts[0]);
- std::string remaining(parts[1]);
-
- int rem = remaining.find(pathsep);
- std::string portStr = (rem == 0 ? remaining :
- remaining.substr(0, rem));
-
- tPort port;
- port = atoi(portStr.c_str());
- if (port == 0) {
- throw HdfsFatalException("Bad host-port for hdfs " + uri);
- }
- hdfsFS fs = hdfsConnectNewInstance(host.c_str(), port);
- return fs;
- }
-
- void split(const std::string &s, char delim,
- std::vector<std::string> &elems) {
- elems.clear();
- size_t prev = 0;
- size_t pos = s.find(delim);
- while (pos != std::string::npos) {
- elems.push_back(s.substr(prev, pos));
- prev = pos + 1;
- pos = s.find(delim, prev);
- }
- elems.push_back(s.substr(prev, s.size()));
- }
-};
-
-} // namespace rocksdb
-
-#else // USE_HDFS
-
-
-namespace rocksdb {
-
-static const Status notsup;
-
-class HdfsEnv : public Env {
-
- public:
- HdfsEnv(const std::string& fsname) {
- fprintf(stderr, "You have not build rocksdb with HDFS support\n");
- fprintf(stderr, "Please see hdfs/README for details\n");
- throw new std::exception();
- }
-
- virtual ~HdfsEnv() {
- }
-
- virtual Status NewSequentialFile(const std::string& fname,
- unique_ptr<SequentialFile>* result,
- const EnvOptions& options);
-
- virtual Status NewRandomAccessFile(const std::string& fname,
- unique_ptr<RandomAccessFile>* result,
- const EnvOptions& options) {
- return notsup;
- }
-
- virtual Status NewWritableFile(const std::string& fname,
- unique_ptr<WritableFile>* result,
- const EnvOptions& options) {
- return notsup;
- }
-
- virtual Status NewRandomRWFile(const std::string& fname,
- unique_ptr<RandomRWFile>* result,
- const EnvOptions& options) {
- return notsup;
- }
-
- virtual bool FileExists(const std::string& fname){return false;}
-
- virtual Status GetChildren(const std::string& path,
- std::vector<std::string>* result){return notsup;}
-
- virtual Status DeleteFile(const std::string& fname){return notsup;}
-
- virtual Status CreateDir(const std::string& name){return notsup;}
-
- virtual Status CreateDirIfMissing(const std::string& name){return notsup;}
-
- virtual Status DeleteDir(const std::string& name){return notsup;}
-
- virtual Status GetFileSize(const std::string& fname, uint64_t* size){return notsup;}
-
- virtual Status GetFileModificationTime(const std::string& fname,
- uint64_t* time) {
- return notsup;
- }
-
- virtual Status RenameFile(const std::string& src, const std::string& target){return notsup;}
-
- virtual Status LockFile(const std::string& fname, FileLock** lock){return notsup;}
-
- virtual Status UnlockFile(FileLock* lock){return notsup;}
-
- virtual Status NewLogger(const std::string& fname,
- shared_ptr<Logger>* result){return notsup;}
-
- virtual void Schedule(void (*function)(void* arg), void* arg,
- Priority pri = LOW) {}
-
- virtual void StartThread(void (*function)(void* arg), void* arg) {}
-
- virtual Status GetTestDirectory(std::string* path) {return notsup;}
-
- virtual uint64_t NowMicros() {return 0;}
-
- virtual void SleepForMicroseconds(int micros) {}
-
- virtual Status GetHostName(char* name, uint64_t len) {return notsup;}
-
- virtual Status GetCurrentTime(int64_t* unix_time) {return notsup;}
-
- virtual Status GetAbsolutePath(const std::string& db_path,
- std::string* outputpath) {return notsup;}
-
- virtual void SetBackgroundThreads(int number, Priority pri = LOW) {}
-
- virtual std::string TimeToString(uint64_t number) { return "";}
-};
-}
-
-#endif // USE_HDFS
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#ifndef LIBHDFS_HDFS_H
-#define LIBHDFS_HDFS_H
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include <errno.h>
-
-#include <jni.h>
-
-#ifndef O_RDONLY
-#define O_RDONLY 1
-#endif
-
-#ifndef O_WRONLY
-#define O_WRONLY 2
-#endif
-
-#ifndef EINTERNAL
-#define EINTERNAL 255
-#endif
-
-
-/** All APIs set errno to meaningful values */
-#ifdef __cplusplus
-extern "C" {
-#endif
-
- /**
- * Some utility decls used in libhdfs.
- */
-
- typedef int32_t tSize; /// size of data for read/write io ops
- typedef time_t tTime; /// time type in seconds
- typedef int64_t tOffset;/// offset within the file
- typedef uint16_t tPort; /// port
- typedef enum tObjectKind {
- kObjectKindFile = 'F',
- kObjectKindDirectory = 'D',
- } tObjectKind;
-
-
- /**
- * The C reflection of org.apache.org.hadoop.FileSystem .
- */
- typedef void* hdfsFS;
-
-
- /**
- * The C equivalent of org.apache.org.hadoop.FSData(Input|Output)Stream .
- */
- enum hdfsStreamType
- {
- UNINITIALIZED = 0,
- INPUT = 1,
- OUTPUT = 2,
- };
-
-
- /**
- * The 'file-handle' to a file in hdfs.
- */
- struct hdfsFile_internal {
- void* file;
- enum hdfsStreamType type;
- };
- typedef struct hdfsFile_internal* hdfsFile;
-
-
- /**
- * hdfsConnectAsUser - Connect to a hdfs file system as a specific user
- * Connect to the hdfs.
- * @param host A string containing either a host name, or an ip address
- * of the namenode of a hdfs cluster. 'host' should be passed as NULL if
- * you want to connect to local filesystem. 'host' should be passed as
- * 'default' (and port as 0) to used the 'configured' filesystem
- * (core-site/core-default.xml).
- * @param port The port on which the server is listening.
- * @param user the user name (this is hadoop domain user). Or NULL is equivelant to hhdfsConnect(host, port)
- * @param groups the groups (these are hadoop domain groups)
- * @return Returns a handle to the filesystem or NULL on error.
- */
- hdfsFS hdfsConnectAsUser(const char* host, tPort port, const char *user , const char *groups[], int groups_size );
-
-
- /**
- * hdfsConnect - Connect to a hdfs file system.
- * Connect to the hdfs.
- * @param host A string containing either a host name, or an ip address
- * of the namenode of a hdfs cluster. 'host' should be passed as NULL if
- * you want to connect to local filesystem. 'host' should be passed as
- * 'default' (and port as 0) to used the 'configured' filesystem
- * (core-site/core-default.xml).
- * @param port The port on which the server is listening.
- * @return Returns a handle to the filesystem or NULL on error.
- */
- hdfsFS hdfsConnect(const char* host, tPort port);
-
-
- /**
- * This are the same as hdfsConnectAsUser except that every invocation returns a new FileSystem handle.
- * Applications should call a hdfsDisconnect for every call to hdfsConnectAsUserNewInstance.
- */
- hdfsFS hdfsConnectAsUserNewInstance(const char* host, tPort port, const char *user , const char *groups[], int groups_size );
- hdfsFS hdfsConnectNewInstance(const char* host, tPort port);
- hdfsFS hdfsConnectPath(const char* uri);
-
- /**
- * hdfsDisconnect - Disconnect from the hdfs file system.
- * Disconnect from hdfs.
- * @param fs The configured filesystem handle.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsDisconnect(hdfsFS fs);
-
-
- /**
- * hdfsOpenFile - Open a hdfs file in given mode.
- * @param fs The configured filesystem handle.
- * @param path The full path to the file.
- * @param flags - an | of bits/fcntl.h file flags - supported flags are O_RDONLY, O_WRONLY (meaning create or overwrite i.e., implies O_TRUNCAT),
- * O_WRONLY|O_APPEND. Other flags are generally ignored other than (O_RDWR || (O_EXCL & O_CREAT)) which return NULL and set errno equal ENOTSUP.
- * @param bufferSize Size of buffer for read/write - pass 0 if you want
- * to use the default configured values.
- * @param replication Block replication - pass 0 if you want to use
- * the default configured values.
- * @param blocksize Size of block - pass 0 if you want to use the
- * default configured values.
- * @return Returns the handle to the open file or NULL on error.
- */
- hdfsFile hdfsOpenFile(hdfsFS fs, const char* path, int flags,
- int bufferSize, short replication, tSize blocksize);
-
-
- /**
- * hdfsCloseFile - Close an open file.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsCloseFile(hdfsFS fs, hdfsFile file);
-
-
- /**
- * hdfsExists - Checks if a given path exsits on the filesystem
- * @param fs The configured filesystem handle.
- * @param path The path to look for
- * @return Returns 0 on exists, 1 on non-exists, -1/-2 on error.
- */
- int hdfsExists(hdfsFS fs, const char *path);
-
-
- /**
- * hdfsSeek - Seek to given offset in file.
- * This works only for files opened in read-only mode.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @param desiredPos Offset into the file to seek into.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsSeek(hdfsFS fs, hdfsFile file, tOffset desiredPos);
-
-
- /**
- * hdfsTell - Get the current offset in the file, in bytes.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @return Current offset, -1 on error.
- */
- tOffset hdfsTell(hdfsFS fs, hdfsFile file);
-
-
- /**
- * hdfsRead - Read data from an open file.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @param buffer The buffer to copy read bytes into.
- * @param length The length of the buffer.
- * @return Returns the number of bytes actually read, possibly less
- * than than length;-1 on error.
- */
- tSize hdfsRead(hdfsFS fs, hdfsFile file, void* buffer, tSize length);
-
-
- /**
- * hdfsPread - Positional read of data from an open file.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @param position Position from which to read
- * @param buffer The buffer to copy read bytes into.
- * @param length The length of the buffer.
- * @return Returns the number of bytes actually read, possibly less than
- * than length;-1 on error.
- */
- tSize hdfsPread(hdfsFS fs, hdfsFile file, tOffset position,
- void* buffer, tSize length);
-
-
- /**
- * hdfsWrite - Write data into an open file.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @param buffer The data.
- * @param length The no. of bytes to write.
- * @return Returns the number of bytes written, -1 on error.
- */
- tSize hdfsWrite(hdfsFS fs, hdfsFile file, const void* buffer,
- tSize length);
-
-
- /**
- * hdfsWrite - Flush the data.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsFlush(hdfsFS fs, hdfsFile file);
-
- /**
- * hdfsSync - Sync the data to persistent store.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsSync(hdfsFS fs, hdfsFile file);
-
- /**
- * hdfsGetNumReplicasInPipeline - get number of remaining replicas in
- * pipeline
- * @param fs The configured filesystem handle
- * @param file the file handle
- * @return returns the # of datanodes in the write pipeline; -1 on error
- */
- int hdfsGetNumCurrentReplicas(hdfsFS, hdfsFile file);
-
- /**
- * hdfsAvailable - Number of bytes that can be read from this
- * input stream without blocking.
- * @param fs The configured filesystem handle.
- * @param file The file handle.
- * @return Returns available bytes; -1 on error.
- */
- int hdfsAvailable(hdfsFS fs, hdfsFile file);
-
-
- /**
- * hdfsCopy - Copy file from one filesystem to another.
- * @param srcFS The handle to source filesystem.
- * @param src The path of source file.
- * @param dstFS The handle to destination filesystem.
- * @param dst The path of destination file.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsCopy(hdfsFS srcFS, const char* src, hdfsFS dstFS, const char* dst);
-
-
- /**
- * hdfsMove - Move file from one filesystem to another.
- * @param srcFS The handle to source filesystem.
- * @param src The path of source file.
- * @param dstFS The handle to destination filesystem.
- * @param dst The path of destination file.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsMove(hdfsFS srcFS, const char* src, hdfsFS dstFS, const char* dst);
-
-
- /**
- * hdfsDelete - Delete file.
- * @param fs The configured filesystem handle.
- * @param path The path of the file.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsDelete(hdfsFS fs, const char* path);
-
-
- /**
- * hdfsRename - Rename file.
- * @param fs The configured filesystem handle.
- * @param oldPath The path of the source file.
- * @param newPath The path of the destination file.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsRename(hdfsFS fs, const char* oldPath, const char* newPath);
-
-
- /**
- * hdfsGetWorkingDirectory - Get the current working directory for
- * the given filesystem.
- * @param fs The configured filesystem handle.
- * @param buffer The user-buffer to copy path of cwd into.
- * @param bufferSize The length of user-buffer.
- * @return Returns buffer, NULL on error.
- */
- char* hdfsGetWorkingDirectory(hdfsFS fs, char *buffer, size_t bufferSize);
-
-
- /**
- * hdfsSetWorkingDirectory - Set the working directory. All relative
- * paths will be resolved relative to it.
- * @param fs The configured filesystem handle.
- * @param path The path of the new 'cwd'.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsSetWorkingDirectory(hdfsFS fs, const char* path);
-
-
- /**
- * hdfsCreateDirectory - Make the given file and all non-existent
- * parents into directories.
- * @param fs The configured filesystem handle.
- * @param path The path of the directory.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsCreateDirectory(hdfsFS fs, const char* path);
-
-
- /**
- * hdfsSetReplication - Set the replication of the specified
- * file to the supplied value
- * @param fs The configured filesystem handle.
- * @param path The path of the file.
- * @return Returns 0 on success, -1 on error.
- */
- int hdfsSetReplication(hdfsFS fs, const char* path, int16_t replication);
-
-
- /**
- * hdfsFileInfo - Information about a file/directory.
- */
- typedef struct {
- tObjectKind mKind; /* file or directory */
- char *mName; /* the name of the file */
- tTime mLastMod; /* the last modification time for the file in seconds */
- tOffset mSize; /* the size of the file in bytes */
- short mReplication; /* the count of replicas */
- tOffset mBlockSize; /* the block size for the file */
- char *mOwner; /* the owner of the file */
- char *mGroup; /* the group associated with the file */
- short mPermissions; /* the permissions associated with the file */
- tTime mLastAccess; /* the last access time for the file in seconds */
- } hdfsFileInfo;
-
-
- /**
- * hdfsListDirectory - Get list of files/directories for a given
- * directory-path. hdfsFreeFileInfo should be called to deallocate memory if
- * the function returns non-NULL value.
- * @param fs The configured filesystem handle.
- * @param path The path of the directory.
- * @param numEntries Set to the number of files/directories in path.
- * @return Returns a dynamically-allocated array of hdfsFileInfo
- * objects; NULL if empty or on error.
- * on error, numEntries will be -1.
- */
- hdfsFileInfo *hdfsListDirectory(hdfsFS fs, const char* path,
- int *numEntries);
-
-
- /**
- * hdfsGetPathInfo - Get information about a path as a (dynamically
- * allocated) single hdfsFileInfo struct. hdfsFreeFileInfo should be
- * called when the pointer is no longer needed.
- * @param fs The configured filesystem handle.
- * @param path The path of the file.
- * @return Returns a dynamically-allocated hdfsFileInfo object;
- * NULL on error.
- */
- hdfsFileInfo *hdfsGetPathInfo(hdfsFS fs, const char* path);
-
-
- /**
- * hdfsFreeFileInfo - Free up the hdfsFileInfo array (including fields)
- * @param hdfsFileInfo The array of dynamically-allocated hdfsFileInfo
- * objects.
- * @param numEntries The size of the array.
- */
- void hdfsFreeFileInfo(hdfsFileInfo *hdfsFileInfo, int numEntries);
-
-
- /**
- * hdfsGetHosts - Get hostnames where a particular block (determined by
- * pos & blocksize) of a file is stored. The last element in the array
- * is NULL. Due to replication, a single block could be present on
- * multiple hosts.
- * @param fs The configured filesystem handle.
- * @param path The path of the file.
- * @param start The start of the block.
- * @param length The length of the block.
- * @return Returns a dynamically-allocated 2-d array of blocks-hosts;
- * NULL on error.
- */
- char*** hdfsGetHosts(hdfsFS fs, const char* path,
- tOffset start, tOffset length);
-
-
- /**
- * hdfsFreeHosts - Free up the structure returned by hdfsGetHosts
- * @param hdfsFileInfo The array of dynamically-allocated hdfsFileInfo
- * objects.
- * @param numEntries The size of the array.
- */
- void hdfsFreeHosts(char ***blockHosts);
-
-
- /**
- * hdfsGetDefaultBlockSize - Get the optimum blocksize.
- * @param fs The configured filesystem handle.
- * @return Returns the blocksize; -1 on error.
- */
- tOffset hdfsGetDefaultBlockSize(hdfsFS fs);
-
-
- /**
- * hdfsGetCapacity - Return the raw capacity of the filesystem.
- * @param fs The configured filesystem handle.
- * @return Returns the raw-capacity; -1 on error.
- */
- tOffset hdfsGetCapacity(hdfsFS fs);
-
-
- /**
- * hdfsGetUsed - Return the total raw size of all files in the filesystem.
- * @param fs The configured filesystem handle.
- * @return Returns the total-size; -1 on error.
- */
- tOffset hdfsGetUsed(hdfsFS fs);
-
- /**
- * hdfsChown
- * @param fs The configured filesystem handle.
- * @param path the path to the file or directory
- * @param owner this is a string in Hadoop land. Set to null or "" if only setting group
- * @param group this is a string in Hadoop land. Set to null or "" if only setting user
- * @return 0 on success else -1
- */
- int hdfsChown(hdfsFS fs, const char* path, const char *owner, const char *group);
-
- /**
- * hdfsChmod
- * @param fs The configured filesystem handle.
- * @param path the path to the file or directory
- * @param mode the bitmask to set it to
- * @return 0 on success else -1
- */
- int hdfsChmod(hdfsFS fs, const char* path, short mode);
-
- /**
- * hdfsUtime
- * @param fs The configured filesystem handle.
- * @param path the path to the file or directory
- * @param mtime new modification time or 0 for only set access time in seconds
- * @param atime new access time or 0 for only set modification time in seconds
- * @return 0 on success else -1
- */
- int hdfsUtime(hdfsFS fs, const char* path, tTime mtime, tTime atime);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*LIBHDFS_HDFS_H*/
-
-/**
- * vim: ts=4: sw=4: et
- */
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "helpers/memenv/memenv.h"
-
-#include "rocksdb/env.h"
-#include "rocksdb/status.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-#include <map>
-#include <string.h>
-#include <string>
-#include <vector>
-
-namespace rocksdb {
-
-namespace {
-
-class FileState {
- public:
- // FileStates are reference counted. The initial reference count is zero
- // and the caller must call Ref() at least once.
- FileState() : refs_(0), size_(0) {}
-
- // Increase the reference count.
- void Ref() {
- MutexLock lock(&refs_mutex_);
- ++refs_;
- }
-
- // Decrease the reference count. Delete if this is the last reference.
- void Unref() {
- bool do_delete = false;
-
- {
- MutexLock lock(&refs_mutex_);
- --refs_;
- assert(refs_ >= 0);
- if (refs_ <= 0) {
- do_delete = true;
- }
- }
-
- if (do_delete) {
- delete this;
- }
- }
-
- uint64_t Size() const { return size_; }
-
- Status Read(uint64_t offset, size_t n, Slice* result, char* scratch) const {
- if (offset > size_) {
- return Status::IOError("Offset greater than file size.");
- }
- const uint64_t available = size_ - offset;
- if (n > available) {
- n = available;
- }
- if (n == 0) {
- *result = Slice();
- return Status::OK();
- }
-
- size_t block = offset / kBlockSize;
- size_t block_offset = offset % kBlockSize;
-
- if (n <= kBlockSize - block_offset) {
- // The requested bytes are all in the first block.
- *result = Slice(blocks_[block] + block_offset, n);
- return Status::OK();
- }
-
- size_t bytes_to_copy = n;
- char* dst = scratch;
-
- while (bytes_to_copy > 0) {
- size_t avail = kBlockSize - block_offset;
- if (avail > bytes_to_copy) {
- avail = bytes_to_copy;
- }
- memcpy(dst, blocks_[block] + block_offset, avail);
-
- bytes_to_copy -= avail;
- dst += avail;
- block++;
- block_offset = 0;
- }
-
- *result = Slice(scratch, n);
- return Status::OK();
- }
-
- Status Append(const Slice& data) {
- const char* src = data.data();
- size_t src_len = data.size();
-
- while (src_len > 0) {
- size_t avail;
- size_t offset = size_ % kBlockSize;
-
- if (offset != 0) {
- // There is some room in the last block.
- avail = kBlockSize - offset;
- } else {
- // No room in the last block; push new one.
- blocks_.push_back(new char[kBlockSize]);
- avail = kBlockSize;
- }
-
- if (avail > src_len) {
- avail = src_len;
- }
- memcpy(blocks_.back() + offset, src, avail);
- src_len -= avail;
- src += avail;
- size_ += avail;
- }
-
- return Status::OK();
- }
-
- private:
- // Private since only Unref() should be used to delete it.
- ~FileState() {
- for (std::vector<char*>::iterator i = blocks_.begin(); i != blocks_.end();
- ++i) {
- delete [] *i;
- }
- }
-
- // No copying allowed.
- FileState(const FileState&);
- void operator=(const FileState&);
-
- port::Mutex refs_mutex_;
- int refs_; // Protected by refs_mutex_;
-
- // The following fields are not protected by any mutex. They are only mutable
- // while the file is being written, and concurrent access is not allowed
- // to writable files.
- std::vector<char*> blocks_;
- uint64_t size_;
-
- enum { kBlockSize = 8 * 1024 };
-};
-
-class SequentialFileImpl : public SequentialFile {
- public:
- explicit SequentialFileImpl(FileState* file) : file_(file), pos_(0) {
- file_->Ref();
- }
-
- ~SequentialFileImpl() {
- file_->Unref();
- }
-
- virtual Status Read(size_t n, Slice* result, char* scratch) {
- Status s = file_->Read(pos_, n, result, scratch);
- if (s.ok()) {
- pos_ += result->size();
- }
- return s;
- }
-
- virtual Status Skip(uint64_t n) {
- if (pos_ > file_->Size()) {
- return Status::IOError("pos_ > file_->Size()");
- }
- const size_t available = file_->Size() - pos_;
- if (n > available) {
- n = available;
- }
- pos_ += n;
- return Status::OK();
- }
-
- private:
- FileState* file_;
- size_t pos_;
-};
-
-class RandomAccessFileImpl : public RandomAccessFile {
- public:
- explicit RandomAccessFileImpl(FileState* file) : file_(file) {
- file_->Ref();
- }
-
- ~RandomAccessFileImpl() {
- file_->Unref();
- }
-
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- return file_->Read(offset, n, result, scratch);
- }
-
- private:
- FileState* file_;
-};
-
-class WritableFileImpl : public WritableFile {
- public:
- WritableFileImpl(FileState* file) : file_(file) {
- file_->Ref();
- }
-
- ~WritableFileImpl() {
- file_->Unref();
- }
-
- virtual Status Append(const Slice& data) {
- return file_->Append(data);
- }
-
- virtual Status Close() { return Status::OK(); }
- virtual Status Flush() { return Status::OK(); }
- virtual Status Sync() { return Status::OK(); }
-
- private:
- FileState* file_;
-};
-
-class InMemoryEnv : public EnvWrapper {
- public:
- explicit InMemoryEnv(Env* base_env) : EnvWrapper(base_env) { }
-
- virtual ~InMemoryEnv() {
- for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end(); ++i){
- i->second->Unref();
- }
- }
-
- // Partial implementation of the Env interface.
- virtual Status NewSequentialFile(const std::string& fname,
- unique_ptr<SequentialFile>* result,
- const EnvOptions& soptions) {
- MutexLock lock(&mutex_);
- if (file_map_.find(fname) == file_map_.end()) {
- *result = NULL;
- return Status::IOError(fname, "File not found");
- }
-
- result->reset(new SequentialFileImpl(file_map_[fname]));
- return Status::OK();
- }
-
- virtual Status NewRandomAccessFile(const std::string& fname,
- unique_ptr<RandomAccessFile>* result,
- const EnvOptions& soptions) {
- MutexLock lock(&mutex_);
- if (file_map_.find(fname) == file_map_.end()) {
- *result = NULL;
- return Status::IOError(fname, "File not found");
- }
-
- result->reset(new RandomAccessFileImpl(file_map_[fname]));
- return Status::OK();
- }
-
- virtual Status NewWritableFile(const std::string& fname,
- unique_ptr<WritableFile>* result,
- const EnvOptions& soptions) {
- MutexLock lock(&mutex_);
- if (file_map_.find(fname) != file_map_.end()) {
- DeleteFileInternal(fname);
- }
-
- FileState* file = new FileState();
- file->Ref();
- file_map_[fname] = file;
-
- result->reset(new WritableFileImpl(file));
- return Status::OK();
- }
-
- virtual bool FileExists(const std::string& fname) {
- MutexLock lock(&mutex_);
- return file_map_.find(fname) != file_map_.end();
- }
-
- virtual Status GetChildren(const std::string& dir,
- std::vector<std::string>* result) {
- MutexLock lock(&mutex_);
- result->clear();
-
- for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end(); ++i){
- const std::string& filename = i->first;
-
- if (filename.size() >= dir.size() + 1 && filename[dir.size()] == '/' &&
- Slice(filename).starts_with(Slice(dir))) {
- result->push_back(filename.substr(dir.size() + 1));
- }
- }
-
- return Status::OK();
- }
-
- void DeleteFileInternal(const std::string& fname) {
- if (file_map_.find(fname) == file_map_.end()) {
- return;
- }
-
- file_map_[fname]->Unref();
- file_map_.erase(fname);
- }
-
- virtual Status DeleteFile(const std::string& fname) {
- MutexLock lock(&mutex_);
- if (file_map_.find(fname) == file_map_.end()) {
- return Status::IOError(fname, "File not found");
- }
-
- DeleteFileInternal(fname);
- return Status::OK();
- }
-
- virtual Status CreateDir(const std::string& dirname) {
- return Status::OK();
- }
-
- virtual Status CreateDirIfMissing(const std::string& dirname) {
- return Status::OK();
- }
-
- virtual Status DeleteDir(const std::string& dirname) {
- return Status::OK();
- }
-
- virtual Status GetFileSize(const std::string& fname, uint64_t* file_size) {
- MutexLock lock(&mutex_);
- if (file_map_.find(fname) == file_map_.end()) {
- return Status::IOError(fname, "File not found");
- }
-
- *file_size = file_map_[fname]->Size();
- return Status::OK();
- }
-
- virtual Status GetFileModificationTime(const std::string& fname,
- uint64_t* time) {
- return Status::NotSupported("getFileMTime", "Not supported in MemEnv");
- }
-
- virtual Status RenameFile(const std::string& src,
- const std::string& target) {
- MutexLock lock(&mutex_);
- if (file_map_.find(src) == file_map_.end()) {
- return Status::IOError(src, "File not found");
- }
-
- DeleteFileInternal(target);
- file_map_[target] = file_map_[src];
- file_map_.erase(src);
- return Status::OK();
- }
-
- virtual Status LockFile(const std::string& fname, FileLock** lock) {
- *lock = new FileLock;
- return Status::OK();
- }
-
- virtual Status UnlockFile(FileLock* lock) {
- delete lock;
- return Status::OK();
- }
-
- virtual Status GetTestDirectory(std::string* path) {
- *path = "/test";
- return Status::OK();
- }
-
- private:
- // Map from filenames to FileState objects, representing a simple file system.
- typedef std::map<std::string, FileState*> FileSystem;
- port::Mutex mutex_;
- FileSystem file_map_; // Protected by mutex_.
-};
-
-} // namespace
-
-Env* NewMemEnv(Env* base_env) {
- return new InMemoryEnv(base_env);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_HELPERS_MEMENV_MEMENV_H_
-#define STORAGE_ROCKSDB_HELPERS_MEMENV_MEMENV_H_
-namespace rocksdb {
-
-class Env;
-
-// Returns a new environment that stores its data in memory and delegates
-// all non-file-storage tasks to base_env. The caller must delete the result
-// when it is no longer needed.
-// *base_env must remain live while the result is in use.
-Env* NewMemEnv(Env* base_env);
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_HELPERS_MEMENV_MEMENV_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "helpers/memenv/memenv.h"
-
-#include "db/db_impl.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "util/testharness.h"
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace rocksdb {
-
-class MemEnvTest {
- public:
- Env* env_;
- const EnvOptions soptions_;
-
- MemEnvTest()
- : env_(NewMemEnv(Env::Default())) {
- }
- ~MemEnvTest() {
- delete env_;
- }
-};
-
-TEST(MemEnvTest, Basics) {
- uint64_t file_size;
- unique_ptr<WritableFile> writable_file;
- std::vector<std::string> children;
-
- ASSERT_OK(env_->CreateDir("/dir"));
-
- // Check that the directory is empty.
- ASSERT_TRUE(!env_->FileExists("/dir/non_existent"));
- ASSERT_TRUE(!env_->GetFileSize("/dir/non_existent", &file_size).ok());
- ASSERT_OK(env_->GetChildren("/dir", &children));
- ASSERT_EQ(0U, children.size());
-
- // Create a file.
- ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_));
- writable_file.reset();
-
- // Check that the file exists.
- ASSERT_TRUE(env_->FileExists("/dir/f"));
- ASSERT_OK(env_->GetFileSize("/dir/f", &file_size));
- ASSERT_EQ(0U, file_size);
- ASSERT_OK(env_->GetChildren("/dir", &children));
- ASSERT_EQ(1U, children.size());
- ASSERT_EQ("f", children[0]);
-
- // Write to the file.
- ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_));
- ASSERT_OK(writable_file->Append("abc"));
- writable_file.reset();
-
- // Check for expected size.
- ASSERT_OK(env_->GetFileSize("/dir/f", &file_size));
- ASSERT_EQ(3U, file_size);
-
- // Check that renaming works.
- ASSERT_TRUE(!env_->RenameFile("/dir/non_existent", "/dir/g").ok());
- ASSERT_OK(env_->RenameFile("/dir/f", "/dir/g"));
- ASSERT_TRUE(!env_->FileExists("/dir/f"));
- ASSERT_TRUE(env_->FileExists("/dir/g"));
- ASSERT_OK(env_->GetFileSize("/dir/g", &file_size));
- ASSERT_EQ(3U, file_size);
-
- // Check that opening non-existent file fails.
- unique_ptr<SequentialFile> seq_file;
- unique_ptr<RandomAccessFile> rand_file;
- ASSERT_TRUE(!env_->NewSequentialFile("/dir/non_existent", &seq_file,
- soptions_).ok());
- ASSERT_TRUE(!seq_file);
- ASSERT_TRUE(!env_->NewRandomAccessFile("/dir/non_existent", &rand_file,
- soptions_).ok());
- ASSERT_TRUE(!rand_file);
-
- // Check that deleting works.
- ASSERT_TRUE(!env_->DeleteFile("/dir/non_existent").ok());
- ASSERT_OK(env_->DeleteFile("/dir/g"));
- ASSERT_TRUE(!env_->FileExists("/dir/g"));
- ASSERT_OK(env_->GetChildren("/dir", &children));
- ASSERT_EQ(0U, children.size());
- ASSERT_OK(env_->DeleteDir("/dir"));
-}
-
-TEST(MemEnvTest, ReadWrite) {
- unique_ptr<WritableFile> writable_file;
- unique_ptr<SequentialFile> seq_file;
- unique_ptr<RandomAccessFile> rand_file;
- Slice result;
- char scratch[100];
-
- ASSERT_OK(env_->CreateDir("/dir"));
-
- ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_));
- ASSERT_OK(writable_file->Append("hello "));
- ASSERT_OK(writable_file->Append("world"));
- writable_file.reset();
-
- // Read sequentially.
- ASSERT_OK(env_->NewSequentialFile("/dir/f", &seq_file, soptions_));
- ASSERT_OK(seq_file->Read(5, &result, scratch)); // Read "hello".
- ASSERT_EQ(0, result.compare("hello"));
- ASSERT_OK(seq_file->Skip(1));
- ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Read "world".
- ASSERT_EQ(0, result.compare("world"));
- ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Try reading past EOF.
- ASSERT_EQ(0U, result.size());
- ASSERT_OK(seq_file->Skip(100)); // Try to skip past end of file.
- ASSERT_OK(seq_file->Read(1000, &result, scratch));
- ASSERT_EQ(0U, result.size());
-
- // Random reads.
- ASSERT_OK(env_->NewRandomAccessFile("/dir/f", &rand_file, soptions_));
- ASSERT_OK(rand_file->Read(6, 5, &result, scratch)); // Read "world".
- ASSERT_EQ(0, result.compare("world"));
- ASSERT_OK(rand_file->Read(0, 5, &result, scratch)); // Read "hello".
- ASSERT_EQ(0, result.compare("hello"));
- ASSERT_OK(rand_file->Read(10, 100, &result, scratch)); // Read "d".
- ASSERT_EQ(0, result.compare("d"));
-
- // Too high offset.
- ASSERT_TRUE(!rand_file->Read(1000, 5, &result, scratch).ok());
-}
-
-TEST(MemEnvTest, Locks) {
- FileLock* lock;
-
- // These are no-ops, but we test they return success.
- ASSERT_OK(env_->LockFile("some file", &lock));
- ASSERT_OK(env_->UnlockFile(lock));
-}
-
-TEST(MemEnvTest, Misc) {
- std::string test_dir;
- ASSERT_OK(env_->GetTestDirectory(&test_dir));
- ASSERT_TRUE(!test_dir.empty());
-
- unique_ptr<WritableFile> writable_file;
- ASSERT_OK(env_->NewWritableFile("/a/b", &writable_file, soptions_));
-
- // These are no-ops, but we test they return success.
- ASSERT_OK(writable_file->Sync());
- ASSERT_OK(writable_file->Flush());
- ASSERT_OK(writable_file->Close());
- writable_file.reset();
-}
-
-TEST(MemEnvTest, LargeWrite) {
- const size_t kWriteSize = 300 * 1024;
- char* scratch = new char[kWriteSize * 2];
-
- std::string write_data;
- for (size_t i = 0; i < kWriteSize; ++i) {
- write_data.append(1, static_cast<char>(i));
- }
-
- unique_ptr<WritableFile> writable_file;
- ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file, soptions_));
- ASSERT_OK(writable_file->Append("foo"));
- ASSERT_OK(writable_file->Append(write_data));
- writable_file.reset();
-
- unique_ptr<SequentialFile> seq_file;
- Slice result;
- ASSERT_OK(env_->NewSequentialFile("/dir/f", &seq_file, soptions_));
- ASSERT_OK(seq_file->Read(3, &result, scratch)); // Read "foo".
- ASSERT_EQ(0, result.compare("foo"));
-
- size_t read = 0;
- std::string read_data;
- while (read < kWriteSize) {
- ASSERT_OK(seq_file->Read(kWriteSize - read, &result, scratch));
- read_data.append(result.data(), result.size());
- read += result.size();
- }
- ASSERT_TRUE(write_data == read_data);
- delete [] scratch;
-}
-
-TEST(MemEnvTest, DBTest) {
- Options options;
- options.create_if_missing = true;
- options.env = env_;
- DB* db;
-
- const Slice keys[] = {Slice("aaa"), Slice("bbb"), Slice("ccc")};
- const Slice vals[] = {Slice("foo"), Slice("bar"), Slice("baz")};
-
- ASSERT_OK(DB::Open(options, "/dir/db", &db));
- for (size_t i = 0; i < 3; ++i) {
- ASSERT_OK(db->Put(WriteOptions(), keys[i], vals[i]));
- }
-
- for (size_t i = 0; i < 3; ++i) {
- std::string res;
- ASSERT_OK(db->Get(ReadOptions(), keys[i], &res));
- ASSERT_TRUE(res == vals[i]);
- }
-
- Iterator* iterator = db->NewIterator(ReadOptions());
- iterator->SeekToFirst();
- for (size_t i = 0; i < 3; ++i) {
- ASSERT_TRUE(iterator->Valid());
- ASSERT_TRUE(keys[i] == iterator->key());
- ASSERT_TRUE(vals[i] == iterator->value());
- iterator->Next();
- }
- ASSERT_TRUE(!iterator->Valid());
- delete iterator;
-
- DBImpl* dbi = reinterpret_cast<DBImpl*>(db);
- ASSERT_OK(dbi->TEST_FlushMemTable());
-
- for (size_t i = 0; i < 3; ++i) {
- std::string res;
- ASSERT_OK(db->Get(ReadOptions(), keys[i], &res));
- ASSERT_TRUE(res == vals[i]);
- }
-
- delete db;
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Arena class defines memory allocation methods. It's used by memtable and
-// skiplist.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_ARENA_H_
-#define STORAGE_ROCKSDB_INCLUDE_ARENA_H_
-
-#include <limits>
-#include <memory>
-
-namespace rocksdb {
-
-class Arena {
- public:
- Arena() {};
- virtual ~Arena() {};
-
- // Return a pointer to a newly allocated memory block of "bytes" bytes.
- virtual char* Allocate(size_t bytes) = 0;
-
- // Allocate memory with the normal alignment guarantees provided by malloc.
- virtual char* AllocateAligned(size_t bytes) = 0;
-
- // Returns an estimate of the total memory used by arena.
- virtual const size_t ApproximateMemoryUsage() = 0;
-
- // Returns the total number of bytes in all blocks allocated so far.
- virtual const size_t MemoryAllocatedBytes() = 0;
-
- private:
- // No copying allowed
- Arena(const Arena&);
- void operator=(const Arena&);
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_ARENA_H_
+++ /dev/null
-/* Copyright (c) 2011 The LevelDB Authors. All rights reserved.
- Use of this source code is governed by a BSD-style license that can be
- found in the LICENSE file. See the AUTHORS file for names of contributors.
-
- C bindings for leveldb. May be useful as a stable ABI that can be
- used by programs that keep leveldb in a shared library, or for
- a JNI api.
-
- Does not support:
- . getters for the option types
- . custom comparators that implement key shortening
- . capturing post-write-snapshot
- . custom iter, db, env, cache implementations using just the C bindings
-
- Some conventions:
-
- (1) We expose just opaque struct pointers and functions to clients.
- This allows us to change internal representations without having to
- recompile clients.
-
- (2) For simplicity, there is no equivalent to the Slice type. Instead,
- the caller has to pass the pointer and length as separate
- arguments.
-
- (3) Errors are represented by a null-terminated c string. NULL
- means no error. All operations that can raise an error are passed
- a "char** errptr" as the last argument. One of the following must
- be true on entry:
- *errptr == NULL
- *errptr points to a malloc()ed null-terminated error message
- On success, a leveldb routine leaves *errptr unchanged.
- On failure, leveldb frees the old value of *errptr and
- set *errptr to a malloc()ed error message.
-
- (4) Bools have the type unsigned char (0 == false; rest == true)
-
- (5) All of the pointer arguments must be non-NULL.
-*/
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_C_H_
-#define STORAGE_ROCKSDB_INCLUDE_C_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdint.h>
-
-/* Exported types */
-
-typedef struct leveldb_t leveldb_t;
-typedef struct leveldb_cache_t leveldb_cache_t;
-typedef struct leveldb_comparator_t leveldb_comparator_t;
-typedef struct leveldb_env_t leveldb_env_t;
-typedef struct leveldb_filelock_t leveldb_filelock_t;
-typedef struct leveldb_filterpolicy_t leveldb_filterpolicy_t;
-typedef struct leveldb_iterator_t leveldb_iterator_t;
-typedef struct leveldb_logger_t leveldb_logger_t;
-typedef struct leveldb_options_t leveldb_options_t;
-typedef struct leveldb_randomfile_t leveldb_randomfile_t;
-typedef struct leveldb_readoptions_t leveldb_readoptions_t;
-typedef struct leveldb_seqfile_t leveldb_seqfile_t;
-typedef struct leveldb_snapshot_t leveldb_snapshot_t;
-typedef struct leveldb_writablefile_t leveldb_writablefile_t;
-typedef struct leveldb_writebatch_t leveldb_writebatch_t;
-typedef struct leveldb_writeoptions_t leveldb_writeoptions_t;
-
-/* DB operations */
-
-extern leveldb_t* leveldb_open(
- const leveldb_options_t* options,
- const char* name,
- char** errptr);
-
-extern void leveldb_close(leveldb_t* db);
-
-extern void leveldb_put(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- const char* key, size_t keylen,
- const char* val, size_t vallen,
- char** errptr);
-
-extern void leveldb_delete(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- const char* key, size_t keylen,
- char** errptr);
-
-extern void leveldb_write(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- leveldb_writebatch_t* batch,
- char** errptr);
-
-/* Returns NULL if not found. A malloc()ed array otherwise.
- Stores the length of the array in *vallen. */
-extern char* leveldb_get(
- leveldb_t* db,
- const leveldb_readoptions_t* options,
- const char* key, size_t keylen,
- size_t* vallen,
- char** errptr);
-
-extern leveldb_iterator_t* leveldb_create_iterator(
- leveldb_t* db,
- const leveldb_readoptions_t* options);
-
-extern const leveldb_snapshot_t* leveldb_create_snapshot(
- leveldb_t* db);
-
-extern void leveldb_release_snapshot(
- leveldb_t* db,
- const leveldb_snapshot_t* snapshot);
-
-/* Returns NULL if property name is unknown.
- Else returns a pointer to a malloc()-ed null-terminated value. */
-extern char* leveldb_property_value(
- leveldb_t* db,
- const char* propname);
-
-extern void leveldb_approximate_sizes(
- leveldb_t* db,
- int num_ranges,
- const char* const* range_start_key, const size_t* range_start_key_len,
- const char* const* range_limit_key, const size_t* range_limit_key_len,
- uint64_t* sizes);
-
-extern void leveldb_compact_range(
- leveldb_t* db,
- const char* start_key, size_t start_key_len,
- const char* limit_key, size_t limit_key_len);
-
-/* Management operations */
-
-extern void leveldb_destroy_db(
- const leveldb_options_t* options,
- const char* name,
- char** errptr);
-
-extern void leveldb_repair_db(
- const leveldb_options_t* options,
- const char* name,
- char** errptr);
-
-/* Iterator */
-
-extern void leveldb_iter_destroy(leveldb_iterator_t*);
-extern unsigned char leveldb_iter_valid(const leveldb_iterator_t*);
-extern void leveldb_iter_seek_to_first(leveldb_iterator_t*);
-extern void leveldb_iter_seek_to_last(leveldb_iterator_t*);
-extern void leveldb_iter_seek(leveldb_iterator_t*, const char* k, size_t klen);
-extern void leveldb_iter_next(leveldb_iterator_t*);
-extern void leveldb_iter_prev(leveldb_iterator_t*);
-extern const char* leveldb_iter_key(const leveldb_iterator_t*, size_t* klen);
-extern const char* leveldb_iter_value(const leveldb_iterator_t*, size_t* vlen);
-extern void leveldb_iter_get_error(const leveldb_iterator_t*, char** errptr);
-
-/* Write batch */
-
-extern leveldb_writebatch_t* leveldb_writebatch_create();
-extern void leveldb_writebatch_destroy(leveldb_writebatch_t*);
-extern void leveldb_writebatch_clear(leveldb_writebatch_t*);
-extern void leveldb_writebatch_put(
- leveldb_writebatch_t*,
- const char* key, size_t klen,
- const char* val, size_t vlen);
-extern void leveldb_writebatch_delete(
- leveldb_writebatch_t*,
- const char* key, size_t klen);
-extern void leveldb_writebatch_iterate(
- leveldb_writebatch_t*,
- void* state,
- void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
- void (*deleted)(void*, const char* k, size_t klen));
-
-/* Options */
-
-extern leveldb_options_t* leveldb_options_create();
-extern void leveldb_options_destroy(leveldb_options_t*);
-extern void leveldb_options_set_comparator(
- leveldb_options_t*,
- leveldb_comparator_t*);
-extern void leveldb_options_set_compression_per_level(
- leveldb_options_t* opt,
- int* level_values,
- size_t num_levels);
-extern void leveldb_options_set_filter_policy(
- leveldb_options_t*,
- leveldb_filterpolicy_t*);
-extern void leveldb_options_set_create_if_missing(
- leveldb_options_t*, unsigned char);
-extern void leveldb_options_set_error_if_exists(
- leveldb_options_t*, unsigned char);
-extern void leveldb_options_set_paranoid_checks(
- leveldb_options_t*, unsigned char);
-extern void leveldb_options_set_env(leveldb_options_t*, leveldb_env_t*);
-extern void leveldb_options_set_info_log(leveldb_options_t*, leveldb_logger_t*);
-extern void leveldb_options_set_write_buffer_size(leveldb_options_t*, size_t);
-extern void leveldb_options_set_max_open_files(leveldb_options_t*, int);
-extern void leveldb_options_set_cache(leveldb_options_t*, leveldb_cache_t*);
-extern void leveldb_options_set_block_size(leveldb_options_t*, size_t);
-extern void leveldb_options_set_block_restart_interval(leveldb_options_t*, int);
-extern void leveldb_options_set_compression_options(
- leveldb_options_t* opt, int w_bits, int level, int strategy);
-
-enum {
- leveldb_no_compression = 0,
- leveldb_snappy_compression = 1
-};
-extern void leveldb_options_set_compression(leveldb_options_t*, int);
-
-/* Comparator */
-
-extern leveldb_comparator_t* leveldb_comparator_create(
- void* state,
- void (*destructor)(void*),
- int (*compare)(
- void*,
- const char* a, size_t alen,
- const char* b, size_t blen),
- const char* (*name)(void*));
-extern void leveldb_comparator_destroy(leveldb_comparator_t*);
-
-/* Filter policy */
-
-extern leveldb_filterpolicy_t* leveldb_filterpolicy_create(
- void* state,
- void (*destructor)(void*),
- char* (*create_filter)(
- void*,
- const char* const* key_array, const size_t* key_length_array,
- int num_keys,
- size_t* filter_length),
- unsigned char (*key_may_match)(
- void*,
- const char* key, size_t length,
- const char* filter, size_t filter_length),
- const char* (*name)(void*));
-extern void leveldb_filterpolicy_destroy(leveldb_filterpolicy_t*);
-
-extern leveldb_filterpolicy_t* leveldb_filterpolicy_create_bloom(
- int bits_per_key);
-
-/* Read options */
-
-extern leveldb_readoptions_t* leveldb_readoptions_create();
-extern void leveldb_readoptions_destroy(leveldb_readoptions_t*);
-extern void leveldb_readoptions_set_verify_checksums(
- leveldb_readoptions_t*,
- unsigned char);
-extern void leveldb_readoptions_set_fill_cache(
- leveldb_readoptions_t*, unsigned char);
-extern void leveldb_readoptions_set_snapshot(
- leveldb_readoptions_t*,
- const leveldb_snapshot_t*);
-
-/* Write options */
-
-extern leveldb_writeoptions_t* leveldb_writeoptions_create();
-extern void leveldb_writeoptions_destroy(leveldb_writeoptions_t*);
-extern void leveldb_writeoptions_set_sync(
- leveldb_writeoptions_t*, unsigned char);
-
-/* Cache */
-
-extern leveldb_cache_t* leveldb_cache_create_lru(size_t capacity);
-extern void leveldb_cache_destroy(leveldb_cache_t* cache);
-
-/* Env */
-
-extern leveldb_env_t* leveldb_create_default_env();
-extern void leveldb_env_destroy(leveldb_env_t*);
-
-#ifdef __cplusplus
-} /* end extern "C" */
-#endif
-
-#endif /* STORAGE_ROCKSDB_INCLUDE_C_H_ */
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// A Cache is an interface that maps keys to values. It has internal
-// synchronization and may be safely accessed concurrently from
-// multiple threads. It may automatically evict entries to make room
-// for new entries. Values have a specified charge against the cache
-// capacity. For example, a cache where the values are variable
-// length strings, may use the length of the string as the charge for
-// the string.
-//
-// A builtin cache implementation with a least-recently-used eviction
-// policy is provided. Clients may use their own implementations if
-// they want something more sophisticated (like scan-resistance, a
-// custom eviction policy, variable cache sizing, etc.)
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_CACHE_H_
-#define STORAGE_ROCKSDB_INCLUDE_CACHE_H_
-
-#include <memory>
-#include <stdint.h>
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-using std::shared_ptr;
-
-class Cache;
-
-// Create a new cache with a fixed size capacity. The cache is sharded
-// to 2^numShardBits shards, by hash of the key. The total capacity
-// is divided and evenly assigned to each shard. Inside each shard,
-// the eviction is done in two passes: first try to free spaces by
-// evicting entries that are among the most least used removeScanCountLimit
-// entries and do not have reference other than by the cache itself, in
-// the least-used order. If not enough space is freed, further free the
-// entries in least used order.
-//
-// The functions without parameter numShardBits and/or removeScanCountLimit
-// use default values. removeScanCountLimit's default value is 0, which
-// means a strict LRU order inside each shard.
-extern shared_ptr<Cache> NewLRUCache(size_t capacity);
-extern shared_ptr<Cache> NewLRUCache(size_t capacity, int numShardBits);
-extern shared_ptr<Cache> NewLRUCache(size_t capacity, int numShardBits,
- int removeScanCountLimit);
-
-class Cache {
- public:
- Cache() { }
-
- // Destroys all existing entries by calling the "deleter"
- // function that was passed to the constructor.
- virtual ~Cache();
-
- // Opaque handle to an entry stored in the cache.
- struct Handle { };
-
- // Insert a mapping from key->value into the cache and assign it
- // the specified charge against the total cache capacity.
- //
- // Returns a handle that corresponds to the mapping. The caller
- // must call this->Release(handle) when the returned mapping is no
- // longer needed.
- //
- // When the inserted entry is no longer needed, the key and
- // value will be passed to "deleter".
- virtual Handle* Insert(const Slice& key, void* value, size_t charge,
- void (*deleter)(const Slice& key, void* value)) = 0;
-
- // If the cache has no mapping for "key", returns nullptr.
- //
- // Else return a handle that corresponds to the mapping. The caller
- // must call this->Release(handle) when the returned mapping is no
- // longer needed.
- virtual Handle* Lookup(const Slice& key) = 0;
-
- // Release a mapping returned by a previous Lookup().
- // REQUIRES: handle must not have been released yet.
- // REQUIRES: handle must have been returned by a method on *this.
- virtual void Release(Handle* handle) = 0;
-
- // Return the value encapsulated in a handle returned by a
- // successful Lookup().
- // REQUIRES: handle must not have been released yet.
- // REQUIRES: handle must have been returned by a method on *this.
- virtual void* Value(Handle* handle) = 0;
-
- // If the cache contains entry for key, erase it. Note that the
- // underlying entry will be kept around until all existing handles
- // to it have been released.
- virtual void Erase(const Slice& key) = 0;
-
- // Return a new numeric id. May be used by multiple clients who are
- // sharing the same cache to partition the key space. Typically the
- // client will allocate a new id at startup and prepend the id to
- // its cache keys.
- virtual uint64_t NewId() = 0;
-
- // returns the maximum configured capacity of the cache
- virtual size_t GetCapacity() = 0;
-
- private:
- void LRU_Remove(Handle* e);
- void LRU_Append(Handle* e);
- void Unref(Handle* e);
-
- struct Rep;
- Rep* rep_;
-
- // No copying allowed
- Cache(const Cache&);
- void operator=(const Cache&);
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_UTIL_CACHE_H_
+++ /dev/null
-// Copyright (c) 2013 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_COMPACTION_FILTER_H_
-#define STORAGE_ROCKSDB_INCLUDE_COMPACTION_FILTER_H_
-
-#include <string>
-
-namespace rocksdb {
-
-class Slice;
-
-// CompactionFilter allows an application to modify/delete a key-value at
-// the time of compaction.
-
-class CompactionFilter {
- public:
-
- // Context information of a compaction run
- struct Context {
- // Does this compaction run include all data files
- bool is_full_compaction;
- };
-
- virtual ~CompactionFilter() {}
-
- // The compaction process invokes this
- // method for kv that is being compacted. A return value
- // of false indicates that the kv should be preserved in the
- // output of this compaction run and a return value of true
- // indicates that this key-value should be removed from the
- // output of the compaction. The application can inspect
- // the existing value of the key and make decision based on it.
- //
- // When the value is to be preserved, the application has the option
- // to modify the existing_value and pass it back through new_value.
- // value_changed needs to be set to true in this case.
- virtual bool Filter(int level,
- const Slice& key,
- const Slice& existing_value,
- std::string* new_value,
- bool* value_changed) const = 0;
-
- // Returns a name that identifies this compaction filter.
- // The name will be printed to LOG file on start up for diagnosis.
- virtual const char* Name() const = 0;
-};
-
-// Each compaction will create a new CompactionFilter allowing the
-// application to know about different campactions
-class CompactionFilterFactory {
- public:
- virtual ~CompactionFilterFactory() { };
-
- virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
- const CompactionFilter::Context& context) = 0;
-
- // Returns a name that identifies this compaction filter factory.
- virtual const char* Name() const = 0;
-};
-
-// Default implementaion of CompactionFilterFactory which does not
-// return any filter
-class DefaultCompactionFilterFactory : public CompactionFilterFactory {
- public:
- virtual std::unique_ptr<CompactionFilter>
- CreateCompactionFilter(const CompactionFilter::Context& context) override {
- return std::unique_ptr<CompactionFilter>(nullptr);
- }
-
- virtual const char* Name() const override {
- return "DefaultCompactionFilterFactory";
- }
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_COMPACTION_FILTER_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_COMPARATOR_H_
-#define STORAGE_ROCKSDB_INCLUDE_COMPARATOR_H_
-
-#include <string>
-
-namespace rocksdb {
-
-class Slice;
-
-// A Comparator object provides a total order across slices that are
-// used as keys in an sstable or a database. A Comparator implementation
-// must be thread-safe since rocksdb may invoke its methods concurrently
-// from multiple threads.
-class Comparator {
- public:
- virtual ~Comparator();
-
- // Three-way comparison. Returns value:
- // < 0 iff "a" < "b",
- // == 0 iff "a" == "b",
- // > 0 iff "a" > "b"
- virtual int Compare(const Slice& a, const Slice& b) const = 0;
-
- // The name of the comparator. Used to check for comparator
- // mismatches (i.e., a DB created with one comparator is
- // accessed using a different comparator.
- //
- // The client of this package should switch to a new name whenever
- // the comparator implementation changes in a way that will cause
- // the relative ordering of any two keys to change.
- //
- // Names starting with "rocksdb." are reserved and should not be used
- // by any clients of this package.
- virtual const char* Name() const = 0;
-
- // Advanced functions: these are used to reduce the space requirements
- // for internal data structures like index blocks.
-
- // If *start < limit, changes *start to a short string in [start,limit).
- // Simple comparator implementations may return with *start unchanged,
- // i.e., an implementation of this method that does nothing is correct.
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const = 0;
-
- // Changes *key to a short string >= *key.
- // Simple comparator implementations may return with *key unchanged,
- // i.e., an implementation of this method that does nothing is correct.
- virtual void FindShortSuccessor(std::string* key) const = 0;
-};
-
-// Return a builtin comparator that uses lexicographic byte-wise
-// ordering. The result remains the property of this module and
-// must not be deleted.
-extern const Comparator* BytewiseComparator();
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_COMPARATOR_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_DB_H_
-#define STORAGE_ROCKSDB_INCLUDE_DB_H_
-
-#include <stdint.h>
-#include <stdio.h>
-#include <memory>
-#include <vector>
-#include "rocksdb/iterator.h"
-#include "rocksdb/options.h"
-#include "rocksdb/types.h"
-#include "rocksdb/transaction_log.h"
-
-namespace rocksdb {
-
-using std::unique_ptr;
-
-// Update Makefile if you change these
-static const int kMajorVersion = 2;
-static const int kMinorVersion = 0;
-
-struct Options;
-struct ReadOptions;
-struct WriteOptions;
-struct FlushOptions;
-class WriteBatch;
-
-// Metadata associated with each SST file.
-struct LiveFileMetaData {
- std::string name; // Name of the file
- int level; // Level at which this file resides.
- size_t size; // File size in bytes.
- std::string smallestkey; // Smallest user defined key in the file.
- std::string largestkey; // Largest user defined key in the file.
- SequenceNumber smallest_seqno; // smallest seqno in file
- SequenceNumber largest_seqno; // largest seqno in file
-};
-
-// Abstract handle to particular state of a DB.
-// A Snapshot is an immutable object and can therefore be safely
-// accessed from multiple threads without any external synchronization.
-class Snapshot {
- protected:
- virtual ~Snapshot();
-};
-
-// A range of keys
-struct Range {
- Slice start; // Included in the range
- Slice limit; // Not included in the range
-
- Range() { }
- Range(const Slice& s, const Slice& l) : start(s), limit(l) { }
-};
-
-// A DB is a persistent ordered map from keys to values.
-// A DB is safe for concurrent access from multiple threads without
-// any external synchronization.
-class DB {
- public:
- // Open the database with the specified "name".
- // Stores a pointer to a heap-allocated database in *dbptr and returns
- // OK on success.
- // Stores nullptr in *dbptr and returns a non-OK status on error.
- // Caller should delete *dbptr when it is no longer needed.
- static Status Open(const Options& options,
- const std::string& name,
- DB** dbptr);
-
- // Open the database for read only. All DB interfaces
- // that modify data, like put/delete, will return error.
- // If the db is opened in read only mode, then no compactions
- // will happen.
- static Status OpenForReadOnly(const Options& options,
- const std::string& name, DB** dbptr,
- bool error_if_log_file_exist = false);
-
- DB() { }
- virtual ~DB();
-
- // Set the database entry for "key" to "value".
- // Returns OK on success, and a non-OK status on error.
- // Note: consider setting options.sync = true.
- virtual Status Put(const WriteOptions& options,
- const Slice& key,
- const Slice& value) = 0;
-
- // Remove the database entry (if any) for "key". Returns OK on
- // success, and a non-OK status on error. It is not an error if "key"
- // did not exist in the database.
- // Note: consider setting options.sync = true.
- virtual Status Delete(const WriteOptions& options, const Slice& key) = 0;
-
- // Merge the database entry for "key" with "value". Returns OK on success,
- // and a non-OK status on error. The semantics of this operation is
- // determined by the user provided merge_operator when opening DB.
- // Note: consider setting options.sync = true.
- virtual Status Merge(const WriteOptions& options,
- const Slice& key,
- const Slice& value) = 0;
-
- // Apply the specified updates to the database.
- // Returns OK on success, non-OK on failure.
- // Note: consider setting options.sync = true.
- virtual Status Write(const WriteOptions& options, WriteBatch* updates) = 0;
-
- // If the database contains an entry for "key" store the
- // corresponding value in *value and return OK.
- //
- // If there is no entry for "key" leave *value unchanged and return
- // a status for which Status::IsNotFound() returns true.
- //
- // May return some other Status on an error.
- virtual Status Get(const ReadOptions& options,
- const Slice& key,
- std::string* value) = 0;
-
- // If keys[i] does not exist in the database, then the i'th returned
- // status will be one for which Status::IsNotFound() is true, and
- // (*values)[i] will be set to some arbitrary value (often ""). Otherwise,
- // the i'th returned status will have Status::ok() true, and (*values)[i]
- // will store the value associated with keys[i].
- //
- // (*values) will always be resized to be the same size as (keys).
- // Similarly, the number of returned statuses will be the number of keys.
- // Note: keys will not be "de-duplicated". Duplicate keys will return
- // duplicate values in order.
- virtual std::vector<Status> MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values) = 0;
-
- // If the key definitely does not exist in the database, then this method
- // returns false, else true. If the caller wants to obtain value when the key
- // is found in memory, a bool for 'value_found' must be passed. 'value_found'
- // will be true on return if value has been set properly.
- // This check is potentially lighter-weight than invoking DB::Get(). One way
- // to make this lighter weight is to avoid doing any IOs.
- // Default implementation here returns true and sets 'value_found' to false
- virtual bool KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found = nullptr) {
- if (value_found != nullptr) {
- *value_found = false;
- }
- return true;
- }
-
- // Return a heap-allocated iterator over the contents of the database.
- // The result of NewIterator() is initially invalid (caller must
- // call one of the Seek methods on the iterator before using it).
- //
- // Caller should delete the iterator when it is no longer needed.
- // The returned iterator should be deleted before this db is deleted.
- virtual Iterator* NewIterator(const ReadOptions& options) = 0;
-
- // Return a handle to the current DB state. Iterators created with
- // this handle will all observe a stable snapshot of the current DB
- // state. The caller must call ReleaseSnapshot(result) when the
- // snapshot is no longer needed.
- virtual const Snapshot* GetSnapshot() = 0;
-
- // Release a previously acquired snapshot. The caller must not
- // use "snapshot" after this call.
- virtual void ReleaseSnapshot(const Snapshot* snapshot) = 0;
-
- // DB implementations can export properties about their state
- // via this method. If "property" is a valid property understood by this
- // DB implementation, fills "*value" with its current value and returns
- // true. Otherwise returns false.
- //
- //
- // Valid property names include:
- //
- // "rocksdb.num-files-at-level<N>" - return the number of files at level <N>,
- // where <N> is an ASCII representation of a level number (e.g. "0").
- // "rocksdb.stats" - returns a multi-line string that describes statistics
- // about the internal operation of the DB.
- // "rocksdb.sstables" - returns a multi-line string that describes all
- // of the sstables that make up the db contents.
- virtual bool GetProperty(const Slice& property, std::string* value) = 0;
-
- // For each i in [0,n-1], store in "sizes[i]", the approximate
- // file system space used by keys in "[range[i].start .. range[i].limit)".
- //
- // Note that the returned sizes measure file system space usage, so
- // if the user data compresses by a factor of ten, the returned
- // sizes will be one-tenth the size of the corresponding user data size.
- //
- // The results may not include the sizes of recently written data.
- virtual void GetApproximateSizes(const Range* range, int n,
- uint64_t* sizes) = 0;
-
- // Compact the underlying storage for the key range [*begin,*end].
- // In particular, deleted and overwritten versions are discarded,
- // and the data is rearranged to reduce the cost of operations
- // needed to access the data. This operation should typically only
- // be invoked by users who understand the underlying implementation.
- //
- // begin==nullptr is treated as a key before all keys in the database.
- // end==nullptr is treated as a key after all keys in the database.
- // Therefore the following call will compact the entire database:
- // db->CompactRange(nullptr, nullptr);
- // Note that after the entire database is compacted, all data are pushed
- // down to the last level containing any data. If the total data size
- // after compaction is reduced, that level might not be appropriate for
- // hosting all the files. In this case, client could set reduce_level
- // to true, to move the files back to the minimum level capable of holding
- // the data set or a given level (specified by non-negative target_level).
- virtual void CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level = false,
- int target_level = -1) = 0;
-
- // Number of levels used for this DB.
- virtual int NumberLevels() = 0;
-
- // Maximum level to which a new compacted memtable is pushed if it
- // does not create overlap.
- virtual int MaxMemCompactionLevel() = 0;
-
- // Number of files in level-0 that would stop writes.
- virtual int Level0StopWriteTrigger() = 0;
-
- // Flush all mem-table data.
- virtual Status Flush(const FlushOptions& options) = 0;
-
- // Prevent file deletions. Compactions will continue to occur,
- // but no obsolete files will be deleted. Calling this multiple
- // times have the same effect as calling it once.
- virtual Status DisableFileDeletions() = 0;
-
- // Allow compactions to delete obselete files.
- virtual Status EnableFileDeletions() = 0;
-
- // GetLiveFiles followed by GetSortedWalFiles can generate a lossless backup
-
- // THIS METHOD IS DEPRECATED. Use the GetTableMetaData to get more
- // detailed information on the live files.
- // Retrieve the list of all files in the database. The files are
- // relative to the dbname and are not absolute paths. The valid size of the
- // manifest file is returned in manifest_file_size. The manifest file is an
- // ever growing file, but only the portion specified by manifest_file_size is
- // valid for this snapshot.
- // Setting flush_memtable to true does Flush before recording the live files.
- // Setting flush_memtable to false is useful when we don't want to wait for
- // flush which may have to wait for compaction to complete taking an
- // indeterminate time. But this will have to use GetSortedWalFiles after
- // GetLiveFiles to compensate for memtables missed in this snapshot due to the
- // absence of Flush, by WAL files to recover the database consistently later
- virtual Status GetLiveFiles(std::vector<std::string>&,
- uint64_t* manifest_file_size,
- bool flush_memtable = true) = 0;
-
- // Retrieve the sorted list of all wal files with earliest file first
- virtual Status GetSortedWalFiles(VectorLogPtr& files) = 0;
-
- // The sequence number of the most recent transaction.
- virtual SequenceNumber GetLatestSequenceNumber() const = 0;
-
- // Sets iter to an iterator that is positioned at a write-batch containing
- // seq_number. If the sequence number is non existent, it returns an iterator
- // at the first available seq_no after the requested seq_no
- // Returns Status::Ok if iterator is valid
- // Must set WAL_ttl_seconds or WAL_size_limit_MB to large values to
- // use this api, else the WAL files will get
- // cleared aggressively and the iterator might keep getting invalid before
- // an update is read.
- virtual Status GetUpdatesSince(SequenceNumber seq_number,
- unique_ptr<TransactionLogIterator>* iter) = 0;
-
- // Delete the file name from the db directory and update the internal state to
- // reflect that. Supports deletion of sst and log files only. 'name' must be
- // path relative to the db directory. eg. 000001.sst, /archive/000003.log
- virtual Status DeleteFile(std::string name) = 0;
-
- // Returns a list of all table files with their level, start key
- // and end key
- virtual void GetLiveFilesMetaData(
- std::vector<LiveFileMetaData> *metadata) {
- }
-
- private:
- // No copying allowed
- DB(const DB&);
- void operator=(const DB&);
-};
-
-// Destroy the contents of the specified database.
-// Be very careful using this method.
-Status DestroyDB(const std::string& name, const Options& options);
-
-// If a DB cannot be opened, you may attempt to call this method to
-// resurrect as much of the contents of the database as possible.
-// Some data may be lost, so be careful when calling this function
-// on a database that contains important information.
-Status RepairDB(const std::string& dbname, const Options& options);
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_DB_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// An Env is an interface used by the rocksdb implementation to access
-// operating system functionality like the filesystem etc. Callers
-// may wish to provide a custom Env object when opening a database to
-// get fine gain control; e.g., to rate limit file system operations.
-//
-// All Env implementations are safe for concurrent access from
-// multiple threads without any external synchronization.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_ENV_H_
-#define STORAGE_ROCKSDB_INCLUDE_ENV_H_
-
-#include <cstdarg>
-#include <string>
-#include <memory>
-#include <vector>
-#include <stdint.h>
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-class FileLock;
-class Logger;
-class RandomAccessFile;
-class SequentialFile;
-class Slice;
-class WritableFile;
-class RandomRWFile;
-struct Options;
-
-using std::unique_ptr;
-using std::shared_ptr;
-
-
-// Options while opening a file to read/write
-struct EnvOptions {
-
- // construct with default Options
- EnvOptions();
-
- // construct from Options
- explicit EnvOptions(const Options& options);
-
- // If true, then allow caching of data in environment buffers
- bool use_os_buffer;
-
- // If true, then use mmap to read data
- bool use_mmap_reads;
-
- // If true, then use mmap to write data
- bool use_mmap_writes;
-
- // If true, set the FD_CLOEXEC on open fd.
- bool set_fd_cloexec;
-
- // Allows OS to incrementally sync files to disk while they are being
- // written, in the background. Issue one request for every bytes_per_sync
- // written. 0 turns it off.
- // Default: 0
- uint64_t bytes_per_sync;
-
-};
-
-class Env {
- public:
- Env() { }
- virtual ~Env();
-
- // Return a default environment suitable for the current operating
- // system. Sophisticated users may wish to provide their own Env
- // implementation instead of relying on this default environment.
- //
- // The result of Default() belongs to rocksdb and must never be deleted.
- static Env* Default();
-
- // Create a brand new sequentially-readable file with the specified name.
- // On success, stores a pointer to the new file in *result and returns OK.
- // On failure stores nullptr in *result and returns non-OK. If the file does
- // not exist, returns a non-OK status.
- //
- // The returned file will only be accessed by one thread at a time.
- virtual Status NewSequentialFile(const std::string& fname,
- unique_ptr<SequentialFile>* result,
- const EnvOptions& options)
- = 0;
-
- // Create a brand new random access read-only file with the
- // specified name. On success, stores a pointer to the new file in
- // *result and returns OK. On failure stores nullptr in *result and
- // returns non-OK. If the file does not exist, returns a non-OK
- // status.
- //
- // The returned file may be concurrently accessed by multiple threads.
- virtual Status NewRandomAccessFile(const std::string& fname,
- unique_ptr<RandomAccessFile>* result,
- const EnvOptions& options)
- = 0;
-
- // Create an object that writes to a new file with the specified
- // name. Deletes any existing file with the same name and creates a
- // new file. On success, stores a pointer to the new file in
- // *result and returns OK. On failure stores nullptr in *result and
- // returns non-OK.
- //
- // The returned file will only be accessed by one thread at a time.
- virtual Status NewWritableFile(const std::string& fname,
- unique_ptr<WritableFile>* result,
- const EnvOptions& options) = 0;
-
- // Create an object that both reads and writes to a file on
- // specified offsets (random access). If file already exists,
- // does not overwrite it. On success, stores a pointer to the
- // new file in *result and returns OK. On failure stores nullptr
- // in *result and returns non-OK.
- virtual Status NewRandomRWFile(const std::string& fname,
- unique_ptr<RandomRWFile>* result,
- const EnvOptions& options) = 0;
-
- // Returns true iff the named file exists.
- virtual bool FileExists(const std::string& fname) = 0;
-
- // Store in *result the names of the children of the specified directory.
- // The names are relative to "dir".
- // Original contents of *results are dropped.
- virtual Status GetChildren(const std::string& dir,
- std::vector<std::string>* result) = 0;
-
- // Delete the named file.
- virtual Status DeleteFile(const std::string& fname) = 0;
-
- // Create the specified directory. Returns error if directory exists.
- virtual Status CreateDir(const std::string& dirname) = 0;
-
- // Creates directory if missing. Return Ok if it exists, or successful in
- // Creating.
- virtual Status CreateDirIfMissing(const std::string& dirname) = 0;
-
- // Delete the specified directory.
- virtual Status DeleteDir(const std::string& dirname) = 0;
-
- // Store the size of fname in *file_size.
- virtual Status GetFileSize(const std::string& fname, uint64_t* file_size) = 0;
-
- // Store the last modification time of fname in *file_mtime.
- virtual Status GetFileModificationTime(const std::string& fname,
- uint64_t* file_mtime) = 0;
- // Rename file src to target.
- virtual Status RenameFile(const std::string& src,
- const std::string& target) = 0;
-
- // Lock the specified file. Used to prevent concurrent access to
- // the same db by multiple processes. On failure, stores nullptr in
- // *lock and returns non-OK.
- //
- // On success, stores a pointer to the object that represents the
- // acquired lock in *lock and returns OK. The caller should call
- // UnlockFile(*lock) to release the lock. If the process exits,
- // the lock will be automatically released.
- //
- // If somebody else already holds the lock, finishes immediately
- // with a failure. I.e., this call does not wait for existing locks
- // to go away.
- //
- // May create the named file if it does not already exist.
- virtual Status LockFile(const std::string& fname, FileLock** lock) = 0;
-
- // Release the lock acquired by a previous successful call to LockFile.
- // REQUIRES: lock was returned by a successful LockFile() call
- // REQUIRES: lock has not already been unlocked.
- virtual Status UnlockFile(FileLock* lock) = 0;
-
- enum Priority { LOW, HIGH, TOTAL };
-
- // Arrange to run "(*function)(arg)" once in a background thread, in
- // the thread pool specified by pri. By default, jobs go to the 'LOW'
- // priority thread pool.
-
- // "function" may run in an unspecified thread. Multiple functions
- // added to the same Env may run concurrently in different threads.
- // I.e., the caller may not assume that background work items are
- // serialized.
- virtual void Schedule(
- void (*function)(void* arg),
- void* arg,
- Priority pri = LOW) = 0;
-
- // Start a new thread, invoking "function(arg)" within the new thread.
- // When "function(arg)" returns, the thread will be destroyed.
- virtual void StartThread(void (*function)(void* arg), void* arg) = 0;
-
- // *path is set to a temporary directory that can be used for testing. It may
- // or many not have just been created. The directory may or may not differ
- // between runs of the same process, but subsequent calls will return the
- // same directory.
- virtual Status GetTestDirectory(std::string* path) = 0;
-
- // Create and return a log file for storing informational messages.
- virtual Status NewLogger(const std::string& fname,
- shared_ptr<Logger>* result) = 0;
-
- // Returns the number of micro-seconds since some fixed point in time. Only
- // useful for computing deltas of time.
- virtual uint64_t NowMicros() = 0;
-
- // Returns the number of nano-seconds since some fixed point in time. Only
- // useful for computing deltas of time in one run.
- // Default implementation simply relies on NowMicros
- virtual uint64_t NowNanos() {
- return NowMicros() * 1000;
- }
-
- // Sleep/delay the thread for the perscribed number of micro-seconds.
- virtual void SleepForMicroseconds(int micros) = 0;
-
- // Get the current host name.
- virtual Status GetHostName(char* name, uint64_t len) = 0;
-
- // Get the number of seconds since the Epoch, 1970-01-01 00:00:00 (UTC).
- virtual Status GetCurrentTime(int64_t* unix_time) = 0;
-
- // Get full directory name for this db.
- virtual Status GetAbsolutePath(const std::string& db_path,
- std::string* output_path) = 0;
-
- // The number of background worker threads of a specific thread pool
- // for this environment. 'LOW' is the default pool.
- // default number: 1
- virtual void SetBackgroundThreads(int number, Priority pri = LOW) = 0;
-
- // Converts seconds-since-Jan-01-1970 to a printable string
- virtual std::string TimeToString(uint64_t time) = 0;
-
- // Generates a unique id that can be used to identify a db
- virtual std::string GenerateUniqueId();
-
- private:
- // No copying allowed
- Env(const Env&);
- void operator=(const Env&);
-};
-
-// A file abstraction for reading sequentially through a file
-class SequentialFile {
- public:
- SequentialFile() { }
- virtual ~SequentialFile();
-
- // Read up to "n" bytes from the file. "scratch[0..n-1]" may be
- // written by this routine. Sets "*result" to the data that was
- // read (including if fewer than "n" bytes were successfully read).
- // May set "*result" to point at data in "scratch[0..n-1]", so
- // "scratch[0..n-1]" must be live when "*result" is used.
- // If an error was encountered, returns a non-OK status.
- //
- // REQUIRES: External synchronization
- virtual Status Read(size_t n, Slice* result, char* scratch) = 0;
-
- // Skip "n" bytes from the file. This is guaranteed to be no
- // slower that reading the same data, but may be faster.
- //
- // If end of file is reached, skipping will stop at the end of the
- // file, and Skip will return OK.
- //
- // REQUIRES: External synchronization
- virtual Status Skip(uint64_t n) = 0;
-
- // Remove any kind of caching of data from the offset to offset+length
- // of this file. If the length is 0, then it refers to the end of file.
- // If the system is not caching the file contents, then this is a noop.
- virtual Status InvalidateCache(size_t offset, size_t length) {
- return Status::NotSupported("InvalidateCache not supported.");
- }
-};
-
-// A file abstraction for randomly reading the contents of a file.
-class RandomAccessFile {
- public:
- RandomAccessFile() { }
- virtual ~RandomAccessFile();
-
- // Read up to "n" bytes from the file starting at "offset".
- // "scratch[0..n-1]" may be written by this routine. Sets "*result"
- // to the data that was read (including if fewer than "n" bytes were
- // successfully read). May set "*result" to point at data in
- // "scratch[0..n-1]", so "scratch[0..n-1]" must be live when
- // "*result" is used. If an error was encountered, returns a non-OK
- // status.
- //
- // Safe for concurrent use by multiple threads.
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const = 0;
-
- // Tries to get an unique ID for this file that will be the same each time
- // the file is opened (and will stay the same while the file is open).
- // Furthermore, it tries to make this ID at most "max_size" bytes. If such an
- // ID can be created this function returns the length of the ID and places it
- // in "id"; otherwise, this function returns 0, in which case "id"
- // may not have been modified.
- //
- // This function guarantees, for IDs from a given environment, two unique ids
- // cannot be made equal to eachother by adding arbitrary bytes to one of
- // them. That is, no unique ID is the prefix of another.
- //
- // This function guarantees that the returned ID will not be interpretable as
- // a single varint.
- //
- // Note: these IDs are only valid for the duration of the process.
- virtual size_t GetUniqueId(char* id, size_t max_size) const {
- return 0; // Default implementation to prevent issues with backwards
- // compatibility.
- };
-
-
- enum AccessPattern { NORMAL, RANDOM, SEQUENTIAL, WILLNEED, DONTNEED };
-
- virtual void Hint(AccessPattern pattern) {}
-
- // Remove any kind of caching of data from the offset to offset+length
- // of this file. If the length is 0, then it refers to the end of file.
- // If the system is not caching the file contents, then this is a noop.
- virtual Status InvalidateCache(size_t offset, size_t length) {
- return Status::NotSupported("InvalidateCache not supported.");
- }
-};
-
-// A file abstraction for sequential writing. The implementation
-// must provide buffering since callers may append small fragments
-// at a time to the file.
-class WritableFile {
- public:
- WritableFile() : last_preallocated_block_(0), preallocation_block_size_ (0) {
- }
- virtual ~WritableFile();
-
- virtual Status Append(const Slice& data) = 0;
- virtual Status Close() = 0;
- virtual Status Flush() = 0;
- virtual Status Sync() = 0; // sync data
-
- /*
- * Sync data and/or metadata as well.
- * By default, sync only data.
- * Override this method for environments where we need to sync
- * metadata as well.
- */
- virtual Status Fsync() {
- return Sync();
- }
-
- /*
- * Get the size of valid data in the file.
- */
- virtual uint64_t GetFileSize() {
- return 0;
- }
-
- /*
- * Get and set the default pre-allocation block size for writes to
- * this file. If non-zero, then Allocate will be used to extend the
- * underlying storage of a file (generally via fallocate) if the Env
- * instance supports it.
- */
- void SetPreallocationBlockSize(size_t size) {
- preallocation_block_size_ = size;
- }
-
- virtual void GetPreallocationStatus(size_t* block_size,
- size_t* last_allocated_block) {
- *last_allocated_block = last_preallocated_block_;
- *block_size = preallocation_block_size_;
- }
-
- // For documentation, refer to RandomAccessFile::GetUniqueId()
- virtual size_t GetUniqueId(char* id, size_t max_size) const {
- return 0; // Default implementation to prevent issues with backwards
- }
-
- // Remove any kind of caching of data from the offset to offset+length
- // of this file. If the length is 0, then it refers to the end of file.
- // If the system is not caching the file contents, then this is a noop.
- // This call has no effect on dirty pages in the cache.
- virtual Status InvalidateCache(size_t offset, size_t length) {
- return Status::NotSupported("InvalidateCache not supported.");
- }
-
- protected:
- // PrepareWrite performs any necessary preparation for a write
- // before the write actually occurs. This allows for pre-allocation
- // of space on devices where it can result in less file
- // fragmentation and/or less waste from over-zealous filesystem
- // pre-allocation.
- void PrepareWrite(size_t offset, size_t len) {
- if (preallocation_block_size_ == 0) {
- return;
- }
- // If this write would cross one or more preallocation blocks,
- // determine what the last preallocation block necesessary to
- // cover this write would be and Allocate to that point.
- const auto block_size = preallocation_block_size_;
- size_t new_last_preallocated_block =
- (offset + len + block_size - 1) / block_size;
- if (new_last_preallocated_block > last_preallocated_block_) {
- size_t num_spanned_blocks =
- new_last_preallocated_block - last_preallocated_block_;
- Allocate(block_size * last_preallocated_block_,
- block_size * num_spanned_blocks);
- last_preallocated_block_ = new_last_preallocated_block;
- }
- }
-
- /*
- * Pre-allocate space for a file.
- */
- virtual Status Allocate(off_t offset, off_t len) {
- return Status::OK();
- }
-
- // Sync a file range with disk.
- // offset is the starting byte of the file range to be synchronized.
- // nbytes specifies the length of the range to be synchronized.
- // This asks the OS to initiate flushing the cached data to disk,
- // without waiting for completion.
- // Default implementation does nothing.
- virtual Status RangeSync(off_t offset, off_t nbytes) {
- return Status::OK();
- }
-
- private:
- size_t last_preallocated_block_;
- size_t preallocation_block_size_;
- // No copying allowed
- WritableFile(const WritableFile&);
- void operator=(const WritableFile&);
-};
-
-// A file abstraction for random reading and writing.
-class RandomRWFile {
- public:
- RandomRWFile() {}
- virtual ~RandomRWFile() {}
-
- // Write data from Slice data to file starting from offset
- // Returns IOError on failure, but does not guarantee
- // atomicity of a write. Returns OK status on success.
- //
- // Safe for concurrent use.
- virtual Status Write(uint64_t offset, const Slice& data) = 0;
- // Read up to "n" bytes from the file starting at "offset".
- // "scratch[0..n-1]" may be written by this routine. Sets "*result"
- // to the data that was read (including if fewer than "n" bytes were
- // successfully read). May set "*result" to point at data in
- // "scratch[0..n-1]", so "scratch[0..n-1]" must be live when
- // "*result" is used. If an error was encountered, returns a non-OK
- // status.
- //
- // Safe for concurrent use by multiple threads.
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const = 0;
- virtual Status Close() = 0; // closes the file
- virtual Status Sync() = 0; // sync data
-
- /*
- * Sync data and/or metadata as well.
- * By default, sync only data.
- * Override this method for environments where we need to sync
- * metadata as well.
- */
- virtual Status Fsync() {
- return Sync();
- }
-
- /*
- * Pre-allocate space for a file.
- */
- virtual Status Allocate(off_t offset, off_t len) {
- return Status::OK();
- }
-
- private:
- // No copying allowed
- RandomRWFile(const RandomRWFile&);
- void operator=(const RandomRWFile&);
-};
-
-// An interface for writing log messages.
-class Logger {
- public:
- enum { DO_NOT_SUPPORT_GET_LOG_FILE_SIZE = -1 };
- Logger() { }
- virtual ~Logger();
-
- // Write an entry to the log file with the specified format.
- virtual void Logv(const char* format, va_list ap) = 0;
- virtual size_t GetLogFileSize() const {
- return DO_NOT_SUPPORT_GET_LOG_FILE_SIZE;
- }
- // Flush to the OS buffers
- virtual void Flush() {}
-
- private:
- // No copying allowed
- Logger(const Logger&);
- void operator=(const Logger&);
-};
-
-
-// Identifies a locked file.
-class FileLock {
- public:
- FileLock() { }
- virtual ~FileLock();
- private:
- // No copying allowed
- FileLock(const FileLock&);
- void operator=(const FileLock&);
-};
-
-
-extern void LogFlush(const shared_ptr<Logger>& info_log);
-
-// Log the specified data to *info_log if info_log is non-nullptr.
-extern void Log(const shared_ptr<Logger>& info_log, const char* format, ...)
-# if defined(__GNUC__) || defined(__clang__)
- __attribute__((__format__ (__printf__, 2, 3)))
-# endif
- ;
-
-extern void LogFlush(Logger *info_log);
-
-extern void Log(Logger* info_log, const char* format, ...)
-# if defined(__GNUC__) || defined(__clang__)
- __attribute__((__format__ (__printf__, 2, 3)))
-# endif
- ;
-
-// A utility routine: write "data" to the named file.
-extern Status WriteStringToFile(Env* env, const Slice& data,
- const std::string& fname);
-
-// A utility routine: read contents of named file into *data
-extern Status ReadFileToString(Env* env, const std::string& fname,
- std::string* data);
-
-// An implementation of Env that forwards all calls to another Env.
-// May be useful to clients who wish to override just part of the
-// functionality of another Env.
-class EnvWrapper : public Env {
- public:
- // Initialize an EnvWrapper that delegates all calls to *t
- explicit EnvWrapper(Env* t) : target_(t) { }
- virtual ~EnvWrapper();
-
- // Return the target to which this Env forwards all calls
- Env* target() const { return target_; }
-
- // The following text is boilerplate that forwards all methods to target()
- Status NewSequentialFile(const std::string& f,
- unique_ptr<SequentialFile>* r,
- const EnvOptions& options) {
- return target_->NewSequentialFile(f, r, options);
- }
- Status NewRandomAccessFile(const std::string& f,
- unique_ptr<RandomAccessFile>* r,
- const EnvOptions& options) {
- return target_->NewRandomAccessFile(f, r, options);
- }
- Status NewWritableFile(const std::string& f, unique_ptr<WritableFile>* r,
- const EnvOptions& options) {
- return target_->NewWritableFile(f, r, options);
- }
- Status NewRandomRWFile(const std::string& f, unique_ptr<RandomRWFile>* r,
- const EnvOptions& options) {
- return target_->NewRandomRWFile(f, r, options);
- }
- bool FileExists(const std::string& f) { return target_->FileExists(f); }
- Status GetChildren(const std::string& dir, std::vector<std::string>* r) {
- return target_->GetChildren(dir, r);
- }
- Status DeleteFile(const std::string& f) { return target_->DeleteFile(f); }
- Status CreateDir(const std::string& d) { return target_->CreateDir(d); }
- Status CreateDirIfMissing(const std::string& d) {
- return target_->CreateDirIfMissing(d);
- }
- Status DeleteDir(const std::string& d) { return target_->DeleteDir(d); }
- Status GetFileSize(const std::string& f, uint64_t* s) {
- return target_->GetFileSize(f, s);
- }
-
- Status GetFileModificationTime(const std::string& fname,
- uint64_t* file_mtime) {
- return target_->GetFileModificationTime(fname, file_mtime);
- }
-
- Status RenameFile(const std::string& s, const std::string& t) {
- return target_->RenameFile(s, t);
- }
- Status LockFile(const std::string& f, FileLock** l) {
- return target_->LockFile(f, l);
- }
- Status UnlockFile(FileLock* l) { return target_->UnlockFile(l); }
- void Schedule(void (*f)(void*), void* a, Priority pri) {
- return target_->Schedule(f, a, pri);
- }
- void StartThread(void (*f)(void*), void* a) {
- return target_->StartThread(f, a);
- }
- virtual Status GetTestDirectory(std::string* path) {
- return target_->GetTestDirectory(path);
- }
- virtual Status NewLogger(const std::string& fname,
- shared_ptr<Logger>* result) {
- return target_->NewLogger(fname, result);
- }
- uint64_t NowMicros() {
- return target_->NowMicros();
- }
- void SleepForMicroseconds(int micros) {
- target_->SleepForMicroseconds(micros);
- }
- Status GetHostName(char* name, uint64_t len) {
- return target_->GetHostName(name, len);
- }
- Status GetCurrentTime(int64_t* unix_time) {
- return target_->GetCurrentTime(unix_time);
- }
- Status GetAbsolutePath(const std::string& db_path,
- std::string* output_path) {
- return target_->GetAbsolutePath(db_path, output_path);
- }
- void SetBackgroundThreads(int num, Priority pri) {
- return target_->SetBackgroundThreads(num, pri);
- }
- std::string TimeToString(uint64_t time) {
- return target_->TimeToString(time);
- }
-
- private:
- Env* target_;
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_ENV_H_
+++ /dev/null
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// A database can be configured with a custom FilterPolicy object.
-// This object is responsible for creating a small filter from a set
-// of keys. These filters are stored in rocksdb and are consulted
-// automatically by rocksdb to decide whether or not to read some
-// information from disk. In many cases, a filter can cut down the
-// number of disk seeks form a handful to a single disk seek per
-// DB::Get() call.
-//
-// Most people will want to use the builtin bloom filter support (see
-// NewBloomFilterPolicy() below).
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_FILTER_POLICY_H_
-#define STORAGE_ROCKSDB_INCLUDE_FILTER_POLICY_H_
-
-#include <string>
-
-namespace rocksdb {
-
-class Slice;
-
-class FilterPolicy {
- public:
- virtual ~FilterPolicy();
-
- // Return the name of this policy. Note that if the filter encoding
- // changes in an incompatible way, the name returned by this method
- // must be changed. Otherwise, old incompatible filters may be
- // passed to methods of this type.
- virtual const char* Name() const = 0;
-
- // keys[0,n-1] contains a list of keys (potentially with duplicates)
- // that are ordered according to the user supplied comparator.
- // Append a filter that summarizes keys[0,n-1] to *dst.
- //
- // Warning: do not change the initial contents of *dst. Instead,
- // append the newly constructed filter to *dst.
- virtual void CreateFilter(const Slice* keys, int n, std::string* dst)
- const = 0;
-
- // "filter" contains the data appended by a preceding call to
- // CreateFilter() on this class. This method must return true if
- // the key was in the list of keys passed to CreateFilter().
- // This method may return true or false if the key was not on the
- // list, but it should aim to return false with a high probability.
- virtual bool KeyMayMatch(const Slice& key, const Slice& filter) const = 0;
-};
-
-// Return a new filter policy that uses a bloom filter with approximately
-// the specified number of bits per key. A good value for bits_per_key
-// is 10, which yields a filter with ~ 1% false positive rate.
-//
-// Callers must delete the result after any database that is using the
-// result has been closed.
-//
-// Note: if you are using a custom comparator that ignores some parts
-// of the keys being compared, you must not use NewBloomFilterPolicy()
-// and must provide your own FilterPolicy that also ignores the
-// corresponding parts of the keys. For example, if the comparator
-// ignores trailing spaces, it would be incorrect to use a
-// FilterPolicy (like NewBloomFilterPolicy) that does not ignore
-// trailing spaces in keys.
-extern const FilterPolicy* NewBloomFilterPolicy(int bits_per_key);
-
-}
-
-#endif // STORAGE_ROCKSDB_INCLUDE_FILTER_POLICY_H_
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-#pragma once
-
-#include <string>
-
-namespace rocksdb {
-
-class Slice;
-class BlockBuilder;
-
-// FlushBlockPolicy provides a configurable way to determine when to flush a
-// block in the block based tables,
-class FlushBlockPolicy {
- public:
- // Keep track of the key/value sequences and return the boolean value to
- // determine if table builder should flush current data block.
- virtual bool Update(const Slice& key,
- const Slice& value) = 0;
-
- virtual ~FlushBlockPolicy() { }
-};
-
-class FlushBlockPolicyFactory {
- public:
- // Return the name of the flush block policy.
- virtual const char* Name() const = 0;
-
- // Return a new block flush policy that flushes data blocks by data size.
- // FlushBlockPolicy may need to access the metadata of the data block
- // builder to determine when to flush the blocks.
- //
- // Callers must delete the result after any database that is using the
- // result has been closed.
- virtual FlushBlockPolicy* NewFlushBlockPolicy(
- const BlockBuilder& data_block_builder) const = 0;
-
- virtual ~FlushBlockPolicyFactory() { }
-};
-
-class FlushBlockBySizePolicyFactory : public FlushBlockPolicyFactory {
- public:
- FlushBlockBySizePolicyFactory(const uint64_t block_size,
- const uint64_t block_size_deviation) :
- block_size_(block_size),
- block_size_deviation_(block_size_deviation) {
- }
-
- virtual const char* Name() const override {
- return "FlushBlockBySizePolicyFactory";
- }
-
- virtual FlushBlockPolicy* NewFlushBlockPolicy(
- const BlockBuilder& data_block_builder) const override;
-
- private:
- const uint64_t block_size_;
- const uint64_t block_size_deviation_;
-};
-
-} // rocksdb
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// An iterator yields a sequence of key/value pairs from a source.
-// The following class defines the interface. Multiple implementations
-// are provided by this library. In particular, iterators are provided
-// to access the contents of a Table or a DB.
-//
-// Multiple threads can invoke const methods on an Iterator without
-// external synchronization, but if any of the threads may call a
-// non-const method, all threads accessing the same Iterator must use
-// external synchronization.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_ITERATOR_H_
-#define STORAGE_ROCKSDB_INCLUDE_ITERATOR_H_
-
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-class Iterator {
- public:
- Iterator();
- virtual ~Iterator();
-
- // An iterator is either positioned at a key/value pair, or
- // not valid. This method returns true iff the iterator is valid.
- virtual bool Valid() const = 0;
-
- // Position at the first key in the source. The iterator is Valid()
- // after this call iff the source is not empty.
- virtual void SeekToFirst() = 0;
-
- // Position at the last key in the source. The iterator is
- // Valid() after this call iff the source is not empty.
- virtual void SeekToLast() = 0;
-
- // Position at the first key in the source that at or past target
- // The iterator is Valid() after this call iff the source contains
- // an entry that comes at or past target.
- virtual void Seek(const Slice& target) = 0;
-
- // Moves to the next entry in the source. After this call, Valid() is
- // true iff the iterator was not positioned at the last entry in the source.
- // REQUIRES: Valid()
- virtual void Next() = 0;
-
- // Moves to the previous entry in the source. After this call, Valid() is
- // true iff the iterator was not positioned at the first entry in source.
- // REQUIRES: Valid()
- virtual void Prev() = 0;
-
- // Return the key for the current entry. The underlying storage for
- // the returned slice is valid only until the next modification of
- // the iterator.
- // REQUIRES: Valid()
- virtual Slice key() const = 0;
-
- // Return the value for the current entry. The underlying storage for
- // the returned slice is valid only until the next modification of
- // the iterator.
- // REQUIRES: !AtEnd() && !AtStart()
- virtual Slice value() const = 0;
-
- // If an error has occurred, return it. Else return an ok status.
- // If non-blocking IO is requested and this operation cannot be
- // satisfied without doing some IO, then this returns Status::Incomplete().
- virtual Status status() const = 0;
-
- // Clients are allowed to register function/arg1/arg2 triples that
- // will be invoked when this iterator is destroyed.
- //
- // Note that unlike all of the preceding methods, this method is
- // not abstract and therefore clients should not override it.
- typedef void (*CleanupFunction)(void* arg1, void* arg2);
- void RegisterCleanup(CleanupFunction function, void* arg1, void* arg2);
-
- private:
- struct Cleanup {
- CleanupFunction function;
- void* arg1;
- void* arg2;
- Cleanup* next;
- };
- Cleanup cleanup_;
-
- // No copying allowed
- Iterator(const Iterator&);
- void operator=(const Iterator&);
-};
-
-// Return an empty iterator (yields nothing).
-extern Iterator* NewEmptyIterator();
-
-// Return an empty iterator with the specified status.
-extern Iterator* NewErrorIterator(const Status& status);
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_ITERATOR_H_
+++ /dev/null
-// Copyright 2008-present Facebook. All Rights Reserved.
-#ifndef STORAGE_ROCKSDB_INCLUDE_LDB_TOOL_H
-#define STORAGE_ROCKSDB_INCLUDE_LDB_TOOL_H
-#include "rocksdb/options.h"
-
-namespace rocksdb {
-
-class LDBTool {
- public:
- void Run(int argc, char** argv, Options = Options());
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_LDB_TOOL_H
+++ /dev/null
-// This file contains the interface that must be implemented by any collection
-// to be used as the backing store for a MemTable. Such a collection must
-// satisfy the following properties:
-// (1) It does not store duplicate items.
-// (2) It uses MemTableRep::KeyComparator to compare items for iteration and
-// equality.
-// (3) It can be accessed concurrently by multiple readers and can support
-// during reads. However, it needn't support multiple concurrent writes.
-// (4) Items are never deleted.
-// The liberal use of assertions is encouraged to enforce (1).
-//
-// The factory will be passed an Arena object when a new MemTableRep is
-// requested. The API for this object is in rocksdb/arena.h.
-//
-// Users can implement their own memtable representations. We include four
-// types built in:
-// - SkipListRep: This is the default; it is backed by a skip list.
-// - TransformRep: This is backed by an custom hash map.
-// On construction, they are given a SliceTransform object. This
-// object is applied to the user key of stored items which indexes into the
-// hash map to yield a skiplist containing all records that share the same
-// user key under the transform function.
-// - UnsortedRep: A subclass of TransformRep where the transform function is
-// the identity function. Optimized for point lookups.
-// - PrefixHashRep: A subclass of TransformRep where the transform function is
-// a fixed-size prefix extractor. If you use PrefixHashRepFactory, the transform
-// must be identical to options.prefix_extractor, otherwise it will be discarded
-// and the default will be used. It is optimized for ranged scans over a
-// prefix.
-// - VectorRep: This is backed by an unordered std::vector. On iteration, the
-// vector is sorted. It is intelligent about sorting; once the MarkReadOnly()
-// has been called, the vector will only be sorted once. It is optimized for
-// random-write-heavy workloads.
-//
-// The last four implementations are designed for situations in which
-// iteration over the entire collection is rare since doing so requires all the
-// keys to be copied into a sorted data structure.
-
-#ifndef STORAGE_ROCKSDB_DB_MEMTABLEREP_H_
-#define STORAGE_ROCKSDB_DB_MEMTABLEREP_H_
-
-#include <memory>
-#include "rocksdb/arena.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/slice_transform.h"
-
-namespace rocksdb {
-
-class MemTableRep {
- public:
- // KeyComparator provides a means to compare keys, which are internal keys
- // concatenated with values.
- class KeyComparator {
- public:
- // Compare a and b. Return a negative value if a is less than b, 0 if they
- // are equal, and a positive value if a is greater than b
- virtual int operator()(const char* a, const char* b) const = 0;
-
- virtual ~KeyComparator() { }
- };
-
- // Insert key into the collection. (The caller will pack key and value into a
- // single buffer and pass that in as the parameter to Insert)
- // REQUIRES: nothing that compares equal to key is currently in the
- // collection.
- virtual void Insert(const char* key) = 0;
-
- // Returns true iff an entry that compares equal to key is in the collection.
- virtual bool Contains(const char* key) const = 0;
-
- // Notify this table rep that it will no longer be added to. By default, does
- // nothing.
- virtual void MarkReadOnly() { }
-
- // Report an approximation of how much memory has been used other than memory
- // that was allocated through the arena.
- virtual size_t ApproximateMemoryUsage() = 0;
-
- virtual ~MemTableRep() { }
-
- // Iteration over the contents of a skip collection
- class Iterator {
- public:
- // Initialize an iterator over the specified collection.
- // The returned iterator is not valid.
- // explicit Iterator(const MemTableRep* collection);
- virtual ~Iterator() { };
-
- // Returns true iff the iterator is positioned at a valid node.
- virtual bool Valid() const = 0;
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- virtual const char* key() const = 0;
-
- // Advances to the next position.
- // REQUIRES: Valid()
- virtual void Next() = 0;
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- virtual void Prev() = 0;
-
- // Advance to the first entry with a key >= target
- virtual void Seek(const char* target) = 0;
-
- // Position at the first entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToFirst() = 0;
-
- // Position at the last entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToLast() = 0;
- };
-
- // Return an iterator over the keys in this representation.
- virtual std::shared_ptr<Iterator> GetIterator() = 0;
-
- // Return an iterator over at least the keys with the specified user key. The
- // iterator may also allow access to other keys, but doesn't have to. Default:
- // GetIterator().
- virtual std::shared_ptr<Iterator> GetIterator(const Slice& user_key) {
- return GetIterator();
- }
-
- // Return an iterator over at least the keys with the specified prefix. The
- // iterator may also allow access to other keys, but doesn't have to. Default:
- // GetIterator().
- virtual std::shared_ptr<Iterator> GetPrefixIterator(const Slice& prefix) {
- return GetIterator();
- }
-
- // Return an iterator that has a special Seek semantics. The result of
- // a Seek might only include keys with the same prefix as the target key.
- virtual std::shared_ptr<Iterator> GetDynamicPrefixIterator() {
- return GetIterator();
- }
-
- protected:
- // When *key is an internal key concatenated with the value, returns the
- // user key.
- virtual Slice UserKey(const char* key) const;
-};
-
-// This is the base class for all factories that are used by RocksDB to create
-// new MemTableRep objects
-class MemTableRepFactory {
- public:
- virtual ~MemTableRepFactory() { };
- virtual std::shared_ptr<MemTableRep> CreateMemTableRep(
- MemTableRep::KeyComparator&, Arena*) = 0;
- virtual const char* Name() const = 0;
-};
-
-// This creates MemTableReps that are backed by an std::vector. On iteration,
-// the vector is sorted. This is useful for workloads where iteration is very
-// rare and writes are generally not issued after reads begin.
-//
-// Parameters:
-// count: Passed to the constructor of the underlying std::vector of each
-// VectorRep. On initialization, the underlying array will be at least count
-// bytes reserved for usage.
-class VectorRepFactory : public MemTableRepFactory {
- const size_t count_;
-public:
- explicit VectorRepFactory(size_t count = 0) : count_(count) { }
- virtual std::shared_ptr<MemTableRep> CreateMemTableRep(
- MemTableRep::KeyComparator&, Arena*) override;
- virtual const char* Name() const override {
- return "VectorRepFactory";
- }
-};
-
-// This uses a skip list to store keys. It is the default.
-class SkipListFactory : public MemTableRepFactory {
-public:
- virtual std::shared_ptr<MemTableRep> CreateMemTableRep(
- MemTableRep::KeyComparator&, Arena*) override;
- virtual const char* Name() const override {
- return "SkipListFactory";
- }
-};
-
-// TransformReps are backed by an unordered map of buffers to buckets. When
-// looking up a key, the user key is extracted and a user-supplied transform
-// function (see rocksdb/slice_transform.h) is applied to get the key into the
-// unordered map. This allows the user to bin user keys based on arbitrary
-// criteria. Two example implementations are UnsortedRepFactory and
-// PrefixHashRepFactory.
-//
-// Iteration over the entire collection is implemented by dumping all the keys
-// into an std::set. Thus, these data structures are best used when iteration
-// over the entire collection is rare.
-//
-// Parameters:
-// transform: The SliceTransform to bucket user keys on. TransformRepFactory
-// owns the pointer.
-// bucket_count: Passed to the constructor of the underlying
-// std::unordered_map of each TransformRep. On initialization, the
-// underlying array will be at least bucket_count size.
-// num_locks: Number of read-write locks to have for the rep. Each bucket is
-// hashed onto a read-write lock which controls access to that lock. More
-// locks means finer-grained concurrency but more memory overhead.
-class TransformRepFactory : public MemTableRepFactory {
- public:
- explicit TransformRepFactory(const SliceTransform* transform,
- size_t bucket_count, size_t num_locks = 1000)
- : transform_(transform),
- bucket_count_(bucket_count),
- num_locks_(num_locks) { }
-
- virtual ~TransformRepFactory() { delete transform_; }
-
- virtual std::shared_ptr<MemTableRep> CreateMemTableRep(
- MemTableRep::KeyComparator&, Arena*) override;
-
- virtual const char* Name() const override {
- return "TransformRepFactory";
- }
-
- const SliceTransform* GetTransform() { return transform_; }
-
- protected:
- const SliceTransform* transform_;
- const size_t bucket_count_;
- const size_t num_locks_;
-};
-
-// UnsortedReps bin user keys based on an identity function transform -- that
-// is, transform(key) = key. This optimizes for point look-ups.
-//
-// Parameters: See TransformRepFactory.
-class UnsortedRepFactory : public TransformRepFactory {
-public:
- explicit UnsortedRepFactory(size_t bucket_count = 0, size_t num_locks = 1000)
- : TransformRepFactory(NewNoopTransform(),
- bucket_count,
- num_locks) { }
- virtual const char* Name() const override {
- return "UnsortedRepFactory";
- }
-};
-
-// PrefixHashReps bin user keys based on a fixed-size prefix. This optimizes for
-// short ranged scans over a given prefix.
-//
-// Parameters: See TransformRepFactory.
-class PrefixHashRepFactory : public TransformRepFactory {
-public:
- explicit PrefixHashRepFactory(const SliceTransform* prefix_extractor,
- size_t bucket_count = 0, size_t num_locks = 1000)
- : TransformRepFactory(prefix_extractor, bucket_count, num_locks)
- { }
-
- virtual std::shared_ptr<MemTableRep> CreateMemTableRep(
- MemTableRep::KeyComparator&, Arena*) override;
-
- virtual const char* Name() const override {
- return "PrefixHashRepFactory";
- }
-};
-
-// The same as TransformRepFactory except it doesn't use locks.
-// Experimental, will replace TransformRepFactory once we are sure
-// it performs better
-extern MemTableRepFactory* NewHashSkipListRepFactory(
- const SliceTransform* transform, size_t bucket_count = 1000000);
-
-}
-
-#endif // STORAGE_ROCKSDB_DB_MEMTABLEREP_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_MERGE_OPERATOR_H_
-#define STORAGE_ROCKSDB_INCLUDE_MERGE_OPERATOR_H_
-
-#include <string>
-#include <deque>
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-class Slice;
-class Logger;
-
-// The Merge Operator
-//
-// Essentially, a MergeOperator specifies the SEMANTICS of a merge, which only
-// client knows. It could be numeric addition, list append, string
-// concatenation, edit data structure, ... , anything.
-// The library, on the other hand, is concerned with the exercise of this
-// interface, at the right time (during get, iteration, compaction...)
-//
-// To use merge, the client needs to provide an object implementing one of
-// the following interfaces:
-// a) AssociativeMergeOperator - for most simple semantics (always take
-// two values, and merge them into one value, which is then put back
-// into rocksdb); numeric addition and string concatenation are examples;
-//
-// b) MergeOperator - the generic class for all the more abstract / complex
-// operations; one method (FullMerge) to merge a Put/Delete value with a
-// merge operand; and another method (PartialMerge) that merges two
-// operands together. this is especially useful if your key values have a
-// complex structure but you would still like to support client-specific
-// incremental updates.
-//
-// AssociativeMergeOperator is simpler to implement. MergeOperator is simply
-// more powerful.
-//
-// Refer to rocksdb-merge wiki for more details and example implementations.
-//
-class MergeOperator {
- public:
- virtual ~MergeOperator() {}
-
- // Gives the client a way to express the read -> modify -> write semantics
- // key: (IN) The key that's associated with this merge operation.
- // Client could multiplex the merge operator based on it
- // if the key space is partitioned and different subspaces
- // refer to different types of data which have different
- // merge operation semantics
- // existing: (IN) null indicates that the key does not exist before this op
- // operand_list:(IN) the sequence of merge operations to apply, front() first.
- // new_value:(OUT) Client is responsible for filling the merge result here
- // logger: (IN) Client could use this to log errors during merge.
- //
- // Return true on success.
- // All values passed in will be client-specific values. So if this method
- // returns false, it is because client specified bad data or there was
- // internal corruption. This will be treated as an error by the library.
- //
- // Also make use of the *logger for error messages.
- virtual bool FullMerge(const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operand_list,
- std::string* new_value,
- Logger* logger) const = 0;
-
- // This function performs merge(left_op, right_op)
- // when both the operands are themselves merge operation types
- // that you would have passed to a DB::Merge() call in the same order
- // (i.e.: DB::Merge(key,left_op), followed by DB::Merge(key,right_op)).
- //
- // PartialMerge should combine them into a single merge operation that is
- // saved into *new_value, and then it should return true.
- // *new_value should be constructed such that a call to
- // DB::Merge(key, *new_value) would yield the same result as a call
- // to DB::Merge(key, left_op) followed by DB::Merge(key, right_op).
- //
- // If it is impossible or infeasible to combine the two operations,
- // leave new_value unchanged and return false. The library will
- // internally keep track of the operations, and apply them in the
- // correct order once a base-value (a Put/Delete/End-of-Database) is seen.
- //
- // TODO: Presently there is no way to differentiate between error/corruption
- // and simply "return false". For now, the client should simply return
- // false in any case it cannot perform partial-merge, regardless of reason.
- // If there is corruption in the data, handle it in the FullMerge() function,
- // and return false there.
- virtual bool PartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const = 0;
-
- // The name of the MergeOperator. Used to check for MergeOperator
- // mismatches (i.e., a DB created with one MergeOperator is
- // accessed using a different MergeOperator)
- // TODO: the name is currently not stored persistently and thus
- // no checking is enforced. Client is responsible for providing
- // consistent MergeOperator between DB opens.
- virtual const char* Name() const = 0;
-};
-
-// The simpler, associative merge operator.
-class AssociativeMergeOperator : public MergeOperator {
- public:
- virtual ~AssociativeMergeOperator() {}
-
- // Gives the client a way to express the read -> modify -> write semantics
- // key: (IN) The key that's associated with this merge operation.
- // existing_value:(IN) null indicates the key does not exist before this op
- // value: (IN) the value to update/merge the existing_value with
- // new_value: (OUT) Client is responsible for filling the merge result here
- // logger: (IN) Client could use this to log errors during merge.
- //
- // Return true on success.
- // All values passed in will be client-specific values. So if this method
- // returns false, it is because client specified bad data or there was
- // internal corruption. The client should assume that this will be treated
- // as an error by the library.
- virtual bool Merge(const Slice& key,
- const Slice* existing_value,
- const Slice& value,
- std::string* new_value,
- Logger* logger) const = 0;
-
-
- private:
- // Default implementations of the MergeOperator functions
- virtual bool FullMerge(const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operand_list,
- std::string* new_value,
- Logger* logger) const override;
-
- virtual bool PartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const override;
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_MERGE_OPERATOR_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_OPTIONS_H_
-#define STORAGE_ROCKSDB_INCLUDE_OPTIONS_H_
-
-#include <stddef.h>
-#include <string>
-#include <memory>
-#include <vector>
-#include <stdint.h>
-
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/slice_transform.h"
-#include "rocksdb/slice_transform.h"
-#include "rocksdb/statistics.h"
-#include "rocksdb/table_stats.h"
-#include "rocksdb/universal_compaction.h"
-
-namespace rocksdb {
-
-class Cache;
-class CompactionFilter;
-class CompactionFilterFactory;
-class Comparator;
-class Env;
-class FilterPolicy;
-class FlushBlockPolicyFactory;
-class Logger;
-class MergeOperator;
-class Snapshot;
-class TableFactory;
-
-using std::shared_ptr;
-
-// DB contents are stored in a set of blocks, each of which holds a
-// sequence of key,value pairs. Each block may be compressed before
-// being stored in a file. The following enum describes which
-// compression method (if any) is used to compress a block.
-enum CompressionType : char {
- // NOTE: do not change the values of existing entries, as these are
- // part of the persistent format on disk.
- kNoCompression = 0x0,
- kSnappyCompression = 0x1,
- kZlibCompression = 0x2,
- kBZip2Compression = 0x3
-};
-
-enum CompactionStyle : char {
- kCompactionStyleLevel = 0x0, // level based compaction style
- kCompactionStyleUniversal = 0x1 // Universal compaction style
-};
-
-// Compression options for different compression algorithms like Zlib
-struct CompressionOptions {
- int window_bits;
- int level;
- int strategy;
- CompressionOptions():window_bits(-14),
- level(-1),
- strategy(0){}
- CompressionOptions(int wbits, int lev, int strategy):window_bits(wbits),
- level(lev),
- strategy(strategy){}
-};
-
-// Options to control the behavior of a database (passed to DB::Open)
-struct Options {
- // -------------------
- // Parameters that affect behavior
-
- // Comparator used to define the order of keys in the table.
- // Default: a comparator that uses lexicographic byte-wise ordering
- //
- // REQUIRES: The client must ensure that the comparator supplied
- // here has the same name and orders keys *exactly* the same as the
- // comparator provided to previous open calls on the same DB.
- const Comparator* comparator;
-
- // REQUIRES: The client must provide a merge operator if Merge operation
- // needs to be accessed. Calling Merge on a DB without a merge operator
- // would result in Status::NotSupported. The client must ensure that the
- // merge operator supplied here has the same name and *exactly* the same
- // semantics as the merge operator provided to previous open calls on
- // the same DB. The only exception is reserved for upgrade, where a DB
- // previously without a merge operator is introduced to Merge operation
- // for the first time. It's necessary to specify a merge operator when
- // openning the DB in this case.
- // Default: nullptr
- shared_ptr<MergeOperator> merge_operator;
-
- // The client must provide compaction_filter_factory if it requires a new
- // compaction filter to be used for different compaction processes
- // Allows an application to modify/delete a key-value during background
- // compaction.
- // Ideally, client should specify only one of filter or factory.
- // compaction_filter takes precedence over compaction_filter_factory if
- // client specifies both.
- // Default: nullptr
- const CompactionFilter* compaction_filter;
-
- // If true, the database will be created if it is missing.
- // Default: false
- bool create_if_missing;
-
- // If true, an error is raised if the database already exists.
- // Default: false
- bool error_if_exists;
-
- // If true, the implementation will do aggressive checking of the
- // data it is processing and will stop early if it detects any
- // errors. This may have unforeseen ramifications: for example, a
- // corruption of one DB entry may cause a large number of entries to
- // become unreadable or for the entire DB to become unopenable.
- // If any of the writes to the database fails (Put, Delete, Merge, Write),
- // the database will switch to read-only mode and fail all other
- // Write operations.
- // Default: false
- bool paranoid_checks;
-
- // Use the specified object to interact with the environment,
- // e.g. to read/write files, schedule background work, etc.
- // Default: Env::Default()
- Env* env;
-
- // Any internal progress/error information generated by the db will
- // be written to info_log if it is non-nullptr, or to a file stored
- // in the same directory as the DB contents if info_log is nullptr.
- // Default: nullptr
- shared_ptr<Logger> info_log;
-
- // -------------------
- // Parameters that affect performance
-
- // Amount of data to build up in memory (backed by an unsorted log
- // on disk) before converting to a sorted on-disk file.
- //
- // Larger values increase performance, especially during bulk loads.
- // Up to max_write_buffer_number write buffers may be held in memory
- // at the same time,
- // so you may wish to adjust this parameter to control memory usage.
- // Also, a larger write buffer will result in a longer recovery time
- // the next time the database is opened.
- //
- // Default: 4MB
- size_t write_buffer_size;
-
- // The maximum number of write buffers that are built up in memory.
- // The default is 2, so that when 1 write buffer is being flushed to
- // storage, new writes can continue to the other write buffer.
- // Default: 2
- int max_write_buffer_number;
-
- // The minimum number of write buffers that will be merged together
- // before writing to storage. If set to 1, then
- // all write buffers are fushed to L0 as individual files and this increases
- // read amplification because a get request has to check in all of these
- // files. Also, an in-memory merge may result in writing lesser
- // data to storage if there are duplicate records in each of these
- // individual write buffers. Default: 1
- int min_write_buffer_number_to_merge;
-
- // Number of open files that can be used by the DB. You may need to
- // increase this if your database has a large working set (budget
- // one open file per 2MB of working set).
- //
- // Default: 1000
- int max_open_files;
-
- // Control over blocks (user data is stored in a set of blocks, and
- // a block is the unit of reading from disk).
-
- // If non-NULL use the specified cache for blocks.
- // If NULL, rocksdb will automatically create and use an 8MB internal cache.
- // Default: nullptr
- shared_ptr<Cache> block_cache;
-
- // If non-NULL use the specified cache for compressed blocks.
- // If NULL, rocksdb will not use a compressed block cache.
- // Default: nullptr
- shared_ptr<Cache> block_cache_compressed;
-
- // Approximate size of user data packed per block. Note that the
- // block size specified here corresponds to uncompressed data. The
- // actual size of the unit read from disk may be smaller if
- // compression is enabled. This parameter can be changed dynamically.
- //
- // Default: 4K
- size_t block_size;
-
- // Number of keys between restart points for delta encoding of keys.
- // This parameter can be changed dynamically. Most clients should
- // leave this parameter alone.
- //
- // Default: 16
- int block_restart_interval;
-
-
- // Compress blocks using the specified compression algorithm. This
- // parameter can be changed dynamically.
- //
- // Default: kSnappyCompression, which gives lightweight but fast
- // compression.
- //
- // Typical speeds of kSnappyCompression on an Intel(R) Core(TM)2 2.4GHz:
- // ~200-500MB/s compression
- // ~400-800MB/s decompression
- // Note that these speeds are significantly faster than most
- // persistent storage speeds, and therefore it is typically never
- // worth switching to kNoCompression. Even if the input data is
- // incompressible, the kSnappyCompression implementation will
- // efficiently detect that and will switch to uncompressed mode.
- CompressionType compression;
-
- // Different levels can have different compression policies. There
- // are cases where most lower levels would like to quick compression
- // algorithm while the higher levels (which have more data) use
- // compression algorithms that have better compression but could
- // be slower. This array, if non nullptr, should have an entry for
- // each level of the database. This array, if non nullptr, overides the
- // value specified in the previous field 'compression'. The caller is
- // reponsible for allocating memory and initializing the values in it
- // before invoking Open(). The caller is responsible for freeing this
- // array and it could be freed anytime after the return from Open().
- // This could have been a std::vector but that makes the equivalent
- // java/C api hard to construct.
- std::vector<CompressionType> compression_per_level;
-
- //different options for compression algorithms
- CompressionOptions compression_opts;
-
- // If non-nullptr, use the specified filter policy to reduce disk reads.
- // Many applications will benefit from passing the result of
- // NewBloomFilterPolicy() here.
- //
- // Default: nullptr
- const FilterPolicy* filter_policy;
-
- // If non-nullptr, use the specified function to determine the
- // prefixes for keys. These prefixes will be placed in the filter.
- // Depending on the workload, this can reduce the number of read-IOP
- // cost for scans when a prefix is passed via ReadOptions to
- // db.NewIterator(). For prefix filtering to work properly,
- // "prefix_extractor" and "comparator" must be such that the following
- // properties hold:
- //
- // 1) key.starts_with(prefix(key))
- // 2) Compare(prefix(key), key) <= 0.
- // 3) If Compare(k1, k2) <= 0, then Compare(prefix(k1), prefix(k2)) <= 0
- // 4) prefix(prefix(key)) == prefix(key)
- //
- // Default: nullptr
- const SliceTransform* prefix_extractor;
-
- // If true, place whole keys in the filter (not just prefixes).
- // This must generally be true for gets to be efficient.
- //
- // Default: true
- bool whole_key_filtering;
-
- // Number of levels for this database
- int num_levels;
-
- // Number of files to trigger level-0 compaction. A value <0 means that
- // level-0 compaction will not be triggered by number of files at all.
- int level0_file_num_compaction_trigger;
-
- // Soft limit on number of level-0 files. We start slowing down writes at this
- // point. A value <0 means that no writing slow down will be triggered by
- // number of files in level-0.
- int level0_slowdown_writes_trigger;
-
- // Maximum number of level-0 files. We stop writes at this point.
- int level0_stop_writes_trigger;
-
- // Maximum level to which a new compacted memtable is pushed if it
- // does not create overlap. We try to push to level 2 to avoid the
- // relatively expensive level 0=>1 compactions and to avoid some
- // expensive manifest file operations. We do not push all the way to
- // the largest level since that can generate a lot of wasted disk
- // space if the same key space is being repeatedly overwritten.
- int max_mem_compaction_level;
-
- // Target file size for compaction.
- // target_file_size_base is per-file size for level-1.
- // Target file size for level L can be calculated by
- // target_file_size_base * (target_file_size_multiplier ^ (L-1))
- // For example, if target_file_size_base is 2MB and
- // target_file_size_multiplier is 10, then each file on level-1 will
- // be 2MB, and each file on level 2 will be 20MB,
- // and each file on level-3 will be 200MB.
-
- // by default target_file_size_base is 2MB.
- int target_file_size_base;
- // by default target_file_size_multiplier is 1, which means
- // by default files in different levels will have similar size.
- int target_file_size_multiplier;
-
- // Control maximum total data size for a level.
- // max_bytes_for_level_base is the max total for level-1.
- // Maximum number of bytes for level L can be calculated as
- // (max_bytes_for_level_base) * (max_bytes_for_level_multiplier ^ (L-1))
- // For example, if max_bytes_for_level_base is 20MB, and if
- // max_bytes_for_level_multiplier is 10, total data size for level-1
- // will be 20MB, total file size for level-2 will be 200MB,
- // and total file size for level-3 will be 2GB.
-
-
- // by default 'max_bytes_for_level_base' is 10MB.
- uint64_t max_bytes_for_level_base;
- // by default 'max_bytes_for_level_base' is 10.
- int max_bytes_for_level_multiplier;
-
- // Different max-size multipliers for different levels.
- // These are multiplied by max_bytes_for_level_multiplier to arrive
- // at the max-size of each level.
- // Default: 1
- std::vector<int> max_bytes_for_level_multiplier_additional;
-
- // Maximum number of bytes in all compacted files. We avoid expanding
- // the lower level file set of a compaction if it would make the
- // total compaction cover more than
- // (expanded_compaction_factor * targetFileSizeLevel()) many bytes.
- int expanded_compaction_factor;
-
- // Maximum number of bytes in all source files to be compacted in a
- // single compaction run. We avoid picking too many files in the
- // source level so that we do not exceed the total source bytes
- // for compaction to exceed
- // (source_compaction_factor * targetFileSizeLevel()) many bytes.
- // Default:1, i.e. pick maxfilesize amount of data as the source of
- // a compaction.
- int source_compaction_factor;
-
- // Control maximum bytes of overlaps in grandparent (i.e., level+2) before we
- // stop building a single file in a level->level+1 compaction.
- int max_grandparent_overlap_factor;
-
- // If non-null, then we should collect metrics about database operations
- // Statistics objects should not be shared between DB instances as
- // it does not use any locks to prevent concurrent updates.
- shared_ptr<Statistics> statistics;
-
- // If true, then the contents of data files are not synced
- // to stable storage. Their contents remain in the OS buffers till the
- // OS decides to flush them. This option is good for bulk-loading
- // of data. Once the bulk-loading is complete, please issue a
- // sync to the OS to flush all dirty buffesrs to stable storage.
- // Default: false
- bool disableDataSync;
-
- // If true, then every store to stable storage will issue a fsync.
- // If false, then every store to stable storage will issue a fdatasync.
- // This parameter should be set to true while storing data to
- // filesystem like ext3 that can lose files after a reboot.
- // Default: false
- bool use_fsync;
-
- // This number controls how often a new scribe log about
- // db deploy stats is written out.
- // -1 indicates no logging at all.
- // Default value is 1800 (half an hour).
- int db_stats_log_interval;
-
- // This specifies the info LOG dir.
- // If it is empty, the log files will be in the same dir as data.
- // If it is non empty, the log files will be in the specified dir,
- // and the db data dir's absolute path will be used as the log file
- // name's prefix.
- std::string db_log_dir;
-
- // This specifies the absolute dir path for write-ahead logs (WAL).
- // If it is empty, the log files will be in the same dir as data,
- // dbname is used as the data dir by default
- // If it is non empty, the log files will be in kept the specified dir.
- // When destroying the db,
- // all log files in wal_dir and the dir itself is deleted
- std::string wal_dir;
-
- // Disable compaction triggered by seek.
- // With bloomfilter and fast storage, a miss on one level
- // is very cheap if the file handle is cached in table cache
- // (which is true if max_open_files is large).
- bool disable_seek_compaction;
-
- // The periodicity when obsolete files get deleted. The default
- // value is 6 hours. The files that get out of scope by compaction
- // process will still get automatically delete on every compaction,
- // regardless of this setting
- uint64_t delete_obsolete_files_period_micros;
-
- // Maximum number of concurrent background jobs, submitted to
- // the default LOW priority thread pool
- // Default: 1
- int max_background_compactions;
-
- // Maximum number of concurrent background memtable flush jobs, submitted to
- // the HIGH priority thread pool.
- // By default, all background jobs (major compaction and memtable flush) go
- // to the LOW priority pool. If this option is set to a positive number,
- // memtable flush jobs will be submitted to the HIGH priority pool.
- // It is important when the same Env is shared by multiple db instances.
- // Without a separate pool, long running major compaction jobs could
- // potentially block memtable flush jobs of other db instances, leading to
- // unnecessary Put stalls.
- // Default: 0
- int max_background_flushes;
-
- // Specify the maximal size of the info log file. If the log file
- // is larger than `max_log_file_size`, a new info log file will
- // be created.
- // If max_log_file_size == 0, all logs will be written to one
- // log file.
- size_t max_log_file_size;
-
- // Time for the info log file to roll (in seconds).
- // If specified with non-zero value, log file will be rolled
- // if it has been active longer than `log_file_time_to_roll`.
- // Default: 0 (disabled)
- size_t log_file_time_to_roll;
-
- // Maximal info log files to be kept.
- // Default: 1000
- size_t keep_log_file_num;
-
- // Puts are delayed 0-1 ms when any level has a compaction score that exceeds
- // soft_rate_limit. This is ignored when == 0.0.
- // CONSTRAINT: soft_rate_limit <= hard_rate_limit. If this constraint does not
- // hold, RocksDB will set soft_rate_limit = hard_rate_limit
- // Default: 0 (disabled)
- double soft_rate_limit;
-
- // Puts are delayed 1ms at a time when any level has a compaction score that
- // exceeds hard_rate_limit. This is ignored when <= 1.0.
- // Default: 0 (disabled)
- double hard_rate_limit;
-
- // Max time a put will be stalled when hard_rate_limit is enforced. If 0, then
- // there is no limit.
- // Default: 1000
- unsigned int rate_limit_delay_max_milliseconds;
-
- // manifest file is rolled over on reaching this limit.
- // The older manifest file be deleted.
- // The default value is MAX_INT so that roll-over does not take place.
- uint64_t max_manifest_file_size;
-
- // Disable block cache. If this is set to true,
- // then no block cache should be used, and the block_cache should
- // point to a nullptr object.
- // Default: false
- bool no_block_cache;
-
- // Number of shards used for table cache.
- int table_cache_numshardbits;
-
- // During data eviction of table's LRU cache, it would be inefficient
- // to strictly follow LRU because this piece of memory will not really
- // be released unless its refcount falls to zero. Instead, make two
- // passes: the first pass will release items with refcount = 1,
- // and if not enough space releases after scanning the number of
- // elements specified by this parameter, we will remove items in LRU
- // order.
- int table_cache_remove_scan_count_limit;
-
- // size of one block in arena memory allocation.
- // If <= 0, a proper value is automatically calculated (usually 1/10 of
- // writer_buffer_size).
- //
- // Default: 0
- size_t arena_block_size;
-
- // Create an Options object with default values for all fields.
- Options();
-
- void Dump(Logger* log) const;
-
- // Set appropriate parameters for bulk loading.
- // The reason that this is a function that returns "this" instead of a
- // constructor is to enable chaining of multiple similar calls in the future.
- //
- // All data will be in level 0 without any automatic compaction.
- // It's recommended to manually call CompactRange(NULL, NULL) before reading
- // from the database, because otherwise the read can be very slow.
- Options* PrepareForBulkLoad();
-
- // Set up the default flush-block policy factory. By default, we'll use
- // `FlushBlockBySizePolicyFactory` as the policy factory.
- // Note: Please call this method after block_size and block_size_deviation
- // is set.
- // REQUIRES: flush_block_policy_factory is not set.
- Options* SetUpDefaultFlushBlockPolicyFactory();
-
- // Disable automatic compactions. Manual compactions can still
- // be issued on this database.
- bool disable_auto_compactions;
-
- // The following two fields affect how archived logs will be deleted.
- // 1. If both set to 0, logs will be deleted asap and will not get into
- // the archive.
- // 2. If WAL_ttl_seconds is 0 and WAL_size_limit_MB is not 0,
- // WAL files will be checked every 10 min and if total size is greater
- // then WAL_size_limit_MB, they will be deleted starting with the
- // earliest until size_limit is met. All empty files will be deleted.
- // 3. If WAL_ttl_seconds is not 0 and WAL_size_limit_MB is 0, then
- // WAL files will be checked every WAL_ttl_secondsi / 2 and those that
- // are older than WAL_ttl_seconds will be deleted.
- // 4. If both are not 0, WAL files will be checked every 10 min and both
- // checks will be performed with ttl being first.
- uint64_t WAL_ttl_seconds;
- uint64_t WAL_size_limit_MB;
-
- // Number of bytes to preallocate (via fallocate) the manifest
- // files. Default is 4mb, which is reasonable to reduce random IO
- // as well as prevent overallocation for mounts that preallocate
- // large amounts of data (such as xfs's allocsize option).
- size_t manifest_preallocation_size;
-
- // Purge duplicate/deleted keys when a memtable is flushed to storage.
- // Default: true
- bool purge_redundant_kvs_while_flush;
-
- // Data being read from file storage may be buffered in the OS
- // Default: true
- bool allow_os_buffer;
-
- // Allow the OS to mmap file for reading sst tables. Default: false
- bool allow_mmap_reads;
-
- // Allow the OS to mmap file for writing. Default: true
- bool allow_mmap_writes;
-
- // Disable child process inherit open files. Default: true
- bool is_fd_close_on_exec;
-
- // Skip log corruption error on recovery (If client is ok with
- // losing most recent changes)
- // Default: false
- bool skip_log_error_on_recovery;
-
- // if not zero, dump rocksdb.stats to LOG every stats_dump_period_sec
- // Default: 3600 (1 hour)
- unsigned int stats_dump_period_sec;
-
- // This is used to close a block before it reaches the configured
- // 'block_size'. If the percentage of free space in the current block is less
- // than this specified number and adding a new record to the block will
- // exceed the configured block size, then this block will be closed and the
- // new record will be written to the next block.
- // Default is 10.
- int block_size_deviation;
-
- // If set true, will hint the underlying file system that the file
- // access pattern is random, when a sst file is opened.
- // Default: true
- bool advise_random_on_open;
-
- // Specify the file access pattern once a compaction is started.
- // It will be applied to all input files of a compaction.
- // Default: NORMAL
- enum { NONE, NORMAL, SEQUENTIAL, WILLNEED } access_hint_on_compaction_start;
-
- // Use adaptive mutex, which spins in the user space before resorting
- // to kernel. This could reduce context switch when the mutex is not
- // heavily contended. However, if the mutex is hot, we could end up
- // wasting spin time.
- // Default: false
- bool use_adaptive_mutex;
-
- // Allows OS to incrementally sync files to disk while they are being
- // written, asynchronously, in the background.
- // Issue one request for every bytes_per_sync written. 0 turns it off.
- // Default: 0
- uint64_t bytes_per_sync;
-
- // The compaction style. Default: kCompactionStyleLevel
- CompactionStyle compaction_style;
-
- // The options needed to support Universal Style compactions
- CompactionOptionsUniversal compaction_options_universal;
-
- // Use KeyMayExist API to filter deletes when this is true.
- // If KeyMayExist returns false, i.e. the key definitely does not exist, then
- // the delete is a noop. KeyMayExist only incurs in-memory look up.
- // This optimization avoids writing the delete to storage when appropriate.
- // Default: false
- bool filter_deletes;
-
- // An iteration->Next() sequentially skips over keys with the same
- // user-key unless this option is set. This number specifies the number
- // of keys (with the same userkey) that will be sequentially
- // skipped before a reseek is issued.
- // Default: 8
- uint64_t max_sequential_skip_in_iterations;
-
- // This is a factory that provides MemTableRep objects.
- // Default: a factory that provides a skip-list-based implementation of
- // MemTableRep.
- std::shared_ptr<MemTableRepFactory> memtable_factory;
-
- // This is a factory that provides TableFactory objects.
- // Default: a factory that provides a default implementation of
- // Table and TableBuilder.
- std::shared_ptr<TableFactory> table_factory;
-
- // This is a factory that provides compaction filter objects which allow
- // an application to modify/delete a key-value during background compaction.
- // Default: a factory that doesn't provide any object
- std::shared_ptr<CompactionFilterFactory> compaction_filter_factory;
-
- // This option allows user to to collect their own interested statistics of
- // the tables.
- // Default: emtpy vector -- no user-defined statistics collection will be
- // performed.
- std::vector<std::shared_ptr<TableStatsCollector>> table_stats_collectors;
-
- // Allows thread-safe inplace updates. Requires Updates iff
- // * key exists in current memtable
- // * new sizeof(new_value) <= sizeof(old_value)
- // * old_value for that key is a put i.e. kTypeValue
- // Default: false.
- bool inplace_update_support;
-
- // Number of locks used for inplace update
- // Default: 10000, if inplace_update_support = true, else 0.
- size_t inplace_update_num_locks;
-
- // Creates the instances of flush block policy.
- // A flush-block policy provides a configurable way to determine when to
- // flush a block in the block based tables,
- // Default: nullptr. User can call FlushBlockBySizePolicyFactory() to set
- // up default policy factory (`FlushBlockBySizePolicyFactory`).
- std::shared_ptr<FlushBlockPolicyFactory> flush_block_policy_factory;
-};
-
-//
-// An application can issue a read request (via Get/Iterators) and specify
-// if that read should process data that ALREADY resides on a specified cache
-// level. For example, if an application specifies kBlockCacheTier then the
-// Get call will process data that is already processed in the memtable or
-// the block cache. It will not page in data from the OS cache or data that
-// resides in storage.
-enum ReadTier {
- kReadAllTier = 0x0, // data in memtable, block cache, OS cache or storage
- kBlockCacheTier = 0x1 // data in memtable or block cache
-};
-
-// Options that control read operations
-struct ReadOptions {
- // If true, all data read from underlying storage will be
- // verified against corresponding checksums.
- // Default: false
- bool verify_checksums;
-
- // Should the "data block"/"index block"/"filter block" read for this
- // iteration be cached in memory?
- // Callers may wish to set this field to false for bulk scans.
- // Default: true
- bool fill_cache;
-
- // If this option is set and memtable implementation allows, Seek
- // might only return keys with the same prefix as the seek-key
- bool prefix_seek;
-
- // If "snapshot" is non-nullptr, read as of the supplied snapshot
- // (which must belong to the DB that is being read and which must
- // not have been released). If "snapshot" is nullptr, use an impliicit
- // snapshot of the state at the beginning of this read operation.
- // Default: nullptr
- const Snapshot* snapshot;
-
- // If "prefix" is non-nullptr, and ReadOptions is being passed to
- // db.NewIterator, only return results when the key begins with this
- // prefix. This field is ignored by other calls (e.g., Get).
- // Options.prefix_extractor must also be set, and
- // prefix_extractor.InRange(prefix) must be true. The iterator
- // returned by NewIterator when this option is set will behave just
- // as if the underlying store did not contain any non-matching keys,
- // with two exceptions. Seek() only accepts keys starting with the
- // prefix, and SeekToLast() is not supported. prefix filter with this
- // option will sometimes reduce the number of read IOPs.
- // Default: nullptr
- const Slice* prefix;
-
- // Specify if this read request should process data that ALREADY
- // resides on a particular cache. If the required data is not
- // found at the specified cache, then Status::Incomplete is returned.
- // Default: kReadAllTier
- ReadTier read_tier;
-
- ReadOptions()
- : verify_checksums(false),
- fill_cache(true),
- prefix_seek(false),
- snapshot(nullptr),
- prefix(nullptr),
- read_tier(kReadAllTier) {
- }
- ReadOptions(bool cksum, bool cache) :
- verify_checksums(cksum), fill_cache(cache),
- prefix_seek(false), snapshot(nullptr), prefix(nullptr),
- read_tier(kReadAllTier) {
- }
-};
-
-// Options that control write operations
-struct WriteOptions {
- // If true, the write will be flushed from the operating system
- // buffer cache (by calling WritableFile::Sync()) before the write
- // is considered complete. If this flag is true, writes will be
- // slower.
- //
- // If this flag is false, and the machine crashes, some recent
- // writes may be lost. Note that if it is just the process that
- // crashes (i.e., the machine does not reboot), no writes will be
- // lost even if sync==false.
- //
- // In other words, a DB write with sync==false has similar
- // crash semantics as the "write()" system call. A DB write
- // with sync==true has similar crash semantics to a "write()"
- // system call followed by "fdatasync()".
- //
- // Default: false
- bool sync;
-
- // If true, writes will not first go to the write ahead log,
- // and the write may got lost after a crash.
- bool disableWAL;
-
- WriteOptions()
- : sync(false),
- disableWAL(false) {
- }
-};
-
-// Options that control flush operations
-struct FlushOptions {
- // If true, the flush will wait until the flush is done.
- // Default: true
- bool wait;
-
- FlushOptions()
- : wait(true) {
- }
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_OPTIONS_H_
+++ /dev/null
-#ifndef STORAGE_ROCKSDB_INCLUDE_PERF_CONTEXT_H
-#define STORAGE_ROCKSDB_INCLUDE_PERF_CONTEXT_H
-
-#include <stdint.h>
-
-namespace rocksdb {
-
-enum PerfLevel {
- kDisable = 0, // disable perf stats
- kEnableCount = 1, // enable only count stats
- kEnableTime = 2 // enable time stats too
-};
-
-// set the perf stats level
-void SetPerfLevel(PerfLevel level);
-
-// A thread local context for gathering performance counter efficiently
-// and transparently.
-
-struct PerfContext {
-
- void Reset(); // reset all performance counters to zero
-
- uint64_t user_key_comparison_count; // total number of user key comparisons
- uint64_t block_cache_hit_count; // total number of block cache hits
- uint64_t block_read_count; // total number of block reads (with IO)
- uint64_t block_read_byte; // total number of bytes from block reads
- uint64_t block_read_time; // total time spent on block reads
- uint64_t block_checksum_time; // total time spent on block checksum
- uint64_t block_decompress_time; // total time spent on block decompression
- // total number of internal keys skipped over during iteration (overwritten or
- // deleted, to be more specific, hidden by a put or delete of the same key)
- uint64_t internal_key_skipped_count;
- // total number of deletes skipped over during iteration
- uint64_t internal_delete_skipped_count;
- uint64_t wal_write_time; // total time spent on writing to WAL
-};
-
-extern __thread PerfContext perf_context;
-
-}
-
-#endif
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Slice is a simple structure containing a pointer into some external
-// storage and a size. The user of a Slice must ensure that the slice
-// is not used after the corresponding external storage has been
-// deallocated.
-//
-// Multiple threads can invoke const methods on a Slice without
-// external synchronization, but if any of the threads may call a
-// non-const method, all threads accessing the same Slice must use
-// external synchronization.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_SLICE_H_
-#define STORAGE_ROCKSDB_INCLUDE_SLICE_H_
-
-#include <assert.h>
-#include <stddef.h>
-#include <string.h>
-#include <string>
-
-namespace rocksdb {
-
-class Slice {
- public:
- // Create an empty slice.
- Slice() : data_(""), size_(0) { }
-
- // Create a slice that refers to d[0,n-1].
- Slice(const char* d, size_t n) : data_(d), size_(n) { }
-
- // Create a slice that refers to the contents of "s"
- /* implicit */
- Slice(const std::string& s) : data_(s.data()), size_(s.size()) { }
-
- // Create a slice that refers to s[0,strlen(s)-1]
- /* implicit */
- Slice(const char* s) : data_(s), size_(strlen(s)) { }
-
- // Return a pointer to the beginning of the referenced data
- const char* data() const { return data_; }
-
- // Return the length (in bytes) of the referenced data
- size_t size() const { return size_; }
-
- // Return true iff the length of the referenced data is zero
- bool empty() const { return size_ == 0; }
-
- // Return the ith byte in the referenced data.
- // REQUIRES: n < size()
- char operator[](size_t n) const {
- assert(n < size());
- return data_[n];
- }
-
- // Change this slice to refer to an empty array
- void clear() { data_ = ""; size_ = 0; }
-
- // Drop the first "n" bytes from this slice.
- void remove_prefix(size_t n) {
- assert(n <= size());
- data_ += n;
- size_ -= n;
- }
-
- // Return a string that contains the copy of the referenced data.
- std::string ToString(bool hex = false) const {
- if (hex) {
- std::string result;
- char buf[10];
- for (size_t i = 0; i < size_; i++) {
- snprintf(buf, 10, "%02X", (unsigned char)data_[i]);
- result += buf;
- }
- return result;
- } else {
- return std::string(data_, size_);
- }
- }
-
- // Three-way comparison. Returns value:
- // < 0 iff "*this" < "b",
- // == 0 iff "*this" == "b",
- // > 0 iff "*this" > "b"
- int compare(const Slice& b) const;
-
- // Return true iff "x" is a prefix of "*this"
- bool starts_with(const Slice& x) const {
- return ((size_ >= x.size_) &&
- (memcmp(data_, x.data_, x.size_) == 0));
- }
-
- // private: make these public for rocksdbjni access
- const char* data_;
- size_t size_;
-
- // Intentionally copyable
-};
-
-// A set of Slices that are virtually concatenated together. 'parts' points
-// to an array of Slices. The number of elements in the array is 'num_parts'.
-struct SliceParts {
- SliceParts(const Slice* parts, int num_parts) :
- parts(parts), num_parts(num_parts) { }
-
- const Slice* parts;
- int num_parts;
-};
-
-inline bool operator==(const Slice& x, const Slice& y) {
- return ((x.size() == y.size()) &&
- (memcmp(x.data(), y.data(), x.size()) == 0));
-}
-
-inline bool operator!=(const Slice& x, const Slice& y) {
- return !(x == y);
-}
-
-inline int Slice::compare(const Slice& b) const {
- const int min_len = (size_ < b.size_) ? size_ : b.size_;
- int r = memcmp(data_, b.data_, min_len);
- if (r == 0) {
- if (size_ < b.size_) r = -1;
- else if (size_ > b.size_) r = +1;
- }
- return r;
-}
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_SLICE_H_
+++ /dev/null
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Class for specifying user-defined functions which perform a
-// transformation on a slice. It is not required that every slice
-// belong to the domain and/or range of a function. Subclasses should
-// define InDomain and InRange to determine which slices are in either
-// of these sets respectively.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_SLICE_TRANSFORM_H_
-#define STORAGE_ROCKSDB_INCLUDE_SLICE_TRANSFORM_H_
-
-#include <string>
-
-namespace rocksdb {
-
-class Slice;
-
-class SliceTransform {
- public:
- virtual ~SliceTransform() {};
-
- // Return the name of this transformation.
- virtual const char* Name() const = 0;
-
- // transform a src in domain to a dst in the range
- virtual Slice Transform(const Slice& src) const = 0;
-
- // determine whether this is a valid src upon the function applies
- virtual bool InDomain(const Slice& src) const = 0;
-
- // determine whether dst=Transform(src) for some src
- virtual bool InRange(const Slice& dst) const = 0;
-};
-
-extern const SliceTransform* NewFixedPrefixTransform(size_t prefix_len);
-
-extern const SliceTransform* NewNoopTransform();
-
-}
-
-#endif // STORAGE_ROCKSDB_INCLUDE_SLICE_TRANSFORM_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_STATISTICS_H_
-#define STORAGE_ROCKSDB_INCLUDE_STATISTICS_H_
-
-#include <atomic>
-#include <cassert>
-#include <cstddef>
-#include <cstdint>
-#include <string>
-#include <memory>
-#include <vector>
-
-namespace rocksdb {
-
-/**
- * Keep adding ticker's here.
- * Any ticker should have a value less than TICKER_ENUM_MAX.
- * Add a new ticker by assigning it the current value of TICKER_ENUM_MAX
- * Add a string representation in TickersNameMap below.
- * And incrementing TICKER_ENUM_MAX.
- */
-enum Tickers {
- // total block cache misses
- // REQUIRES: BLOCK_CACHE_MISS == BLOCK_CACHE_INDEX_MISS +
- // BLOCK_CACHE_FILTER_MISS +
- // BLOCK_CACHE_DATA_MISS;
- BLOCK_CACHE_MISS,
- // total block cache hit
- // REQUIRES: BLOCK_CACHE_HIT == BLOCK_CACHE_INDEX_HIT +
- // BLOCK_CACHE_FILTER_HIT +
- // BLOCK_CACHE_DATA_HIT;
- BLOCK_CACHE_HIT,
- // # of blocks added to block cache.
- BLOCK_CACHE_ADD,
- // # of times cache miss when accessing index block from block cache.
- BLOCK_CACHE_INDEX_MISS,
- // # of times cache hit when accessing index block from block cache.
- BLOCK_CACHE_INDEX_HIT,
- // # of times cache miss when accessing filter block from block cache.
- BLOCK_CACHE_FILTER_MISS,
- // # of times cache hit when accessing filter block from block cache.
- BLOCK_CACHE_FILTER_HIT,
- // # of times cache miss when accessing data block from block cache.
- BLOCK_CACHE_DATA_MISS,
- // # of times cache hit when accessing data block from block cache.
- BLOCK_CACHE_DATA_HIT,
- // # of times bloom filter has avoided file reads.
- BLOOM_FILTER_USEFUL,
-
- /**
- * COMPACTION_KEY_DROP_* count the reasons for key drop during compaction
- * There are 3 reasons currently.
- */
- COMPACTION_KEY_DROP_NEWER_ENTRY, // key was written with a newer value.
- COMPACTION_KEY_DROP_OBSOLETE, // The key is obsolete.
- COMPACTION_KEY_DROP_USER, // user compaction function has dropped the key.
-
- // Number of keys written to the database via the Put and Write call's
- NUMBER_KEYS_WRITTEN,
- // Number of Keys read,
- NUMBER_KEYS_READ,
- // Number keys updated, if inplace update is enabled
- NUMBER_KEYS_UPDATED,
- // Bytes written / read
- BYTES_WRITTEN,
- BYTES_READ,
- NO_FILE_CLOSES,
- NO_FILE_OPENS,
- NO_FILE_ERRORS,
- // Time system had to wait to do LO-L1 compactions
- STALL_L0_SLOWDOWN_MICROS,
- // Time system had to wait to move memtable to L1.
- STALL_MEMTABLE_COMPACTION_MICROS,
- // write throttle because of too many files in L0
- STALL_L0_NUM_FILES_MICROS,
- RATE_LIMIT_DELAY_MILLIS,
-
- NO_ITERATORS, // number of iterators currently open
-
- // Number of MultiGet calls, keys read, and bytes read
- NUMBER_MULTIGET_CALLS,
- NUMBER_MULTIGET_KEYS_READ,
- NUMBER_MULTIGET_BYTES_READ,
-
- // Number of deletes records that were not required to be
- // written to storage because key does not exist
- NUMBER_FILTERED_DELETES,
- NUMBER_MERGE_FAILURES,
- SEQUENCE_NUMBER,
-
- // number of times bloom was checked before creating iterator on a
- // file, and the number of times the check was useful in avoiding
- // iterator creation (and thus likely IOPs).
- BLOOM_FILTER_PREFIX_CHECKED,
- BLOOM_FILTER_PREFIX_USEFUL,
-
- // Number of times we had to reseek inside an iteration to skip
- // over large number of keys with same userkey.
- NUMBER_OF_RESEEKS_IN_ITERATION,
-
- // Record the number of calls to GetUpadtesSince. Useful to keep track of
- // transaction log iterator refreshes
- GET_UPDATES_SINCE_CALLS,
-
- BLOCK_CACHE_COMPRESSED_MISS, // miss in the compressed block cache
- BLOCK_CACHE_COMPRESSED_HIT, // hit in the compressed block cache
-
- TICKER_ENUM_MAX
-};
-
-// The order of items listed in Tickers should be the same as
-// the order listed in TickersNameMap
-const std::vector<std::pair<Tickers, std::string>> TickersNameMap = {
- { BLOCK_CACHE_MISS, "rocksdb.block.cache.miss" },
- { BLOCK_CACHE_HIT, "rocksdb.block.cache.hit" },
- { BLOCK_CACHE_ADD, "rocksdb.block.cache.add" },
- { BLOCK_CACHE_INDEX_MISS, "rocksdb.block.cache.index.miss" },
- { BLOCK_CACHE_INDEX_HIT, "rocksdb.block.cache.index.hit" },
- { BLOCK_CACHE_FILTER_MISS, "rocksdb.block.cache.filter.miss" },
- { BLOCK_CACHE_FILTER_HIT, "rocksdb.block.cache.filter.hit" },
- { BLOCK_CACHE_DATA_MISS, "rocksdb.block.cache.data.miss" },
- { BLOCK_CACHE_DATA_HIT, "rocksdb.block.cache.data.hit" },
- { BLOOM_FILTER_USEFUL, "rocksdb.bloom.filter.useful" },
- { COMPACTION_KEY_DROP_NEWER_ENTRY, "rocksdb.compaction.key.drop.new" },
- { COMPACTION_KEY_DROP_OBSOLETE, "rocksdb.compaction.key.drop.obsolete" },
- { COMPACTION_KEY_DROP_USER, "rocksdb.compaction.key.drop.user" },
- { NUMBER_KEYS_WRITTEN, "rocksdb.number.keys.written" },
- { NUMBER_KEYS_READ, "rocksdb.number.keys.read" },
- { NUMBER_KEYS_UPDATED, "rocksdb.number.keys.updated" },
- { BYTES_WRITTEN, "rocksdb.bytes.written" },
- { BYTES_READ, "rocksdb.bytes.read" },
- { NO_FILE_CLOSES, "rocksdb.no.file.closes" },
- { NO_FILE_OPENS, "rocksdb.no.file.opens" },
- { NO_FILE_ERRORS, "rocksdb.no.file.errors" },
- { STALL_L0_SLOWDOWN_MICROS, "rocksdb.l0.slowdown.micros" },
- { STALL_MEMTABLE_COMPACTION_MICROS, "rocksdb.memtable.compaction.micros" },
- { STALL_L0_NUM_FILES_MICROS, "rocksdb.l0.num.files.stall.micros" },
- { RATE_LIMIT_DELAY_MILLIS, "rocksdb.rate.limit.delay.millis" },
- { NO_ITERATORS, "rocksdb.num.iterators" },
- { NUMBER_MULTIGET_CALLS, "rocksdb.number.multiget.get" },
- { NUMBER_MULTIGET_KEYS_READ, "rocksdb.number.multiget.keys.read" },
- { NUMBER_MULTIGET_BYTES_READ, "rocksdb.number.multiget.bytes.read" },
- { NUMBER_FILTERED_DELETES, "rocksdb.number.deletes.filtered" },
- { NUMBER_MERGE_FAILURES, "rocksdb.number.merge.failures" },
- { SEQUENCE_NUMBER, "rocksdb.sequence.number" },
- { BLOOM_FILTER_PREFIX_CHECKED, "rocksdb.bloom.filter.prefix.checked" },
- { BLOOM_FILTER_PREFIX_USEFUL, "rocksdb.bloom.filter.prefix.useful" },
- { NUMBER_OF_RESEEKS_IN_ITERATION, "rocksdb.number.reseeks.iteration" },
- { GET_UPDATES_SINCE_CALLS, "rocksdb.getupdatessince.calls" },
- { BLOCK_CACHE_COMPRESSED_MISS, "rocksdb.block.cachecompressed.miss" },
- { BLOCK_CACHE_COMPRESSED_HIT, "rocksdb.block.cachecompressed.hit" }
-};
-
-/**
- * Keep adding histogram's here.
- * Any histogram whould have value less than HISTOGRAM_ENUM_MAX
- * Add a new Histogram by assigning it the current value of HISTOGRAM_ENUM_MAX
- * Add a string representation in HistogramsNameMap below
- * And increment HISTOGRAM_ENUM_MAX
- */
-enum Histograms {
- DB_GET,
- DB_WRITE,
- COMPACTION_TIME,
- TABLE_SYNC_MICROS,
- COMPACTION_OUTFILE_SYNC_MICROS,
- WAL_FILE_SYNC_MICROS,
- MANIFEST_FILE_SYNC_MICROS,
- // TIME SPENT IN IO DURING TABLE OPEN
- TABLE_OPEN_IO_MICROS,
- DB_MULTIGET,
- READ_BLOCK_COMPACTION_MICROS,
- READ_BLOCK_GET_MICROS,
- WRITE_RAW_BLOCK_MICROS,
-
- STALL_L0_SLOWDOWN_COUNT,
- STALL_MEMTABLE_COMPACTION_COUNT,
- STALL_L0_NUM_FILES_COUNT,
- HARD_RATE_LIMIT_DELAY_COUNT,
- SOFT_RATE_LIMIT_DELAY_COUNT,
- NUM_FILES_IN_SINGLE_COMPACTION,
- HISTOGRAM_ENUM_MAX,
-};
-
-const std::vector<std::pair<Histograms, std::string>> HistogramsNameMap = {
- { DB_GET, "rocksdb.db.get.micros" },
- { DB_WRITE, "rocksdb.db.write.micros" },
- { COMPACTION_TIME, "rocksdb.compaction.times.micros" },
- { TABLE_SYNC_MICROS, "rocksdb.table.sync.micros" },
- { COMPACTION_OUTFILE_SYNC_MICROS, "rocksdb.compaction.outfile.sync.micros" },
- { WAL_FILE_SYNC_MICROS, "rocksdb.wal.file.sync.micros" },
- { MANIFEST_FILE_SYNC_MICROS, "rocksdb.manifest.file.sync.micros" },
- { TABLE_OPEN_IO_MICROS, "rocksdb.table.open.io.micros" },
- { DB_MULTIGET, "rocksdb.db.multiget.micros" },
- { READ_BLOCK_COMPACTION_MICROS, "rocksdb.read.block.compaction.micros" },
- { READ_BLOCK_GET_MICROS, "rocksdb.read.block.get.micros" },
- { WRITE_RAW_BLOCK_MICROS, "rocksdb.write.raw.block.micros" },
- { STALL_L0_SLOWDOWN_COUNT, "rocksdb.l0.slowdown.count"},
- { STALL_MEMTABLE_COMPACTION_COUNT, "rocksdb.memtable.compaction.count"},
- { STALL_L0_NUM_FILES_COUNT, "rocksdb.num.files.stall.count"},
- { HARD_RATE_LIMIT_DELAY_COUNT, "rocksdb.hard.rate.limit.delay.count"},
- { SOFT_RATE_LIMIT_DELAY_COUNT, "rocksdb.soft.rate.limit.delay.count"},
- { NUM_FILES_IN_SINGLE_COMPACTION, "rocksdb.numfiles.in.singlecompaction" },
-};
-
-struct HistogramData {
- double median;
- double percentile95;
- double percentile99;
- double average;
- double standard_deviation;
-};
-
-
-class Histogram {
- public:
- // clear's the histogram
- virtual void Clear() = 0;
- virtual ~Histogram();
- // Add a value to be recorded in the histogram.
- virtual void Add(uint64_t value) = 0;
-
- virtual std::string ToString() const = 0;
-
- // Get statistics
- virtual double Median() const = 0;
- virtual double Percentile(double p) const = 0;
- virtual double Average() const = 0;
- virtual double StandardDeviation() const = 0;
- virtual void Data(HistogramData * const data) const = 0;
-
-};
-
-/**
- * A dumb ticker which keeps incrementing through its life time.
- * Thread safe. Locking managed by implementation of this interface.
- */
-class Ticker {
- public:
- Ticker() : count_(0) { }
-
- inline void setTickerCount(uint64_t count) {
- count_ = count;
- }
-
- inline void recordTick(int count = 1) {
- count_ += count;
- }
-
- inline uint64_t getCount() {
- return count_;
- }
-
- private:
- std::atomic_uint_fast64_t count_;
-};
-
-// Analyze the performance of a db
-class Statistics {
- public:
-
- virtual long getTickerCount(Tickers tickerType) = 0;
- virtual void recordTick(Tickers tickerType, uint64_t count = 0) = 0;
- virtual void setTickerCount(Tickers tickerType, uint64_t count) = 0;
- virtual void measureTime(Histograms histogramType, uint64_t time) = 0;
-
- virtual void histogramData(Histograms type, HistogramData * const data) = 0;
- // String representation of the statistic object.
- std::string ToString();
-};
-
-// Create a concrete DBStatistics object
-std::shared_ptr<Statistics> CreateDBStatistics();
-
-// Ease of Use functions
-inline void RecordTick(std::shared_ptr<Statistics> statistics,
- Tickers ticker,
- uint64_t count = 1) {
- assert(HistogramsNameMap.size() == HISTOGRAM_ENUM_MAX);
- assert(TickersNameMap.size() == TICKER_ENUM_MAX);
- if (statistics) {
- statistics->recordTick(ticker, count);
- }
-}
-
-inline void SetTickerCount(std::shared_ptr<Statistics> statistics,
- Tickers ticker,
- uint64_t count) {
- assert(HistogramsNameMap.size() == HISTOGRAM_ENUM_MAX);
- assert(TickersNameMap.size() == TICKER_ENUM_MAX);
- if (statistics) {
- statistics->setTickerCount(ticker, count);
- }
-}
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_STATISTICS_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// A Status encapsulates the result of an operation. It may indicate success,
-// or it may indicate an error with an associated error message.
-//
-// Multiple threads can invoke const methods on a Status without
-// external synchronization, but if any of the threads may call a
-// non-const method, all threads accessing the same Status must use
-// external synchronization.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_STATUS_H_
-#define STORAGE_ROCKSDB_INCLUDE_STATUS_H_
-
-#include <string>
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-class Status {
- public:
- // Create a success status.
- Status() : state_(nullptr) { }
- ~Status() { delete[] state_; }
-
- // Copy the specified status.
- Status(const Status& s);
- void operator=(const Status& s);
-
- // Return a success status.
- static Status OK() { return Status(); }
-
- // Return error status of an appropriate type.
- static Status NotFound(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kNotFound, msg, msg2);
- }
- static Status Corruption(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kCorruption, msg, msg2);
- }
- static Status NotSupported(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kNotSupported, msg, msg2);
- }
- static Status InvalidArgument(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kInvalidArgument, msg, msg2);
- }
- static Status IOError(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kIOError, msg, msg2);
- }
- static Status MergeInProgress(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kMergeInProgress, msg, msg2);
- }
- static Status Incomplete(const Slice& msg, const Slice& msg2 = Slice()) {
- return Status(kIncomplete, msg, msg2);
- }
-
- // Returns true iff the status indicates success.
- bool ok() const { return (state_ == nullptr); }
-
- // Returns true iff the status indicates a NotFound error.
- bool IsNotFound() const { return code() == kNotFound; }
-
- // Returns true iff the status indicates a Corruption error.
- bool IsCorruption() const { return code() == kCorruption; }
-
- // Returns true iff the status indicates a NotSupported error.
- bool IsNotSupported() const { return code() == kNotSupported; }
-
- // Returns true iff the status indicates an InvalidArgument error.
- bool IsInvalidArgument() const { return code() == kInvalidArgument; }
-
- // Returns true iff the status indicates an IOError.
- bool IsIOError() const { return code() == kIOError; }
-
- // Returns true iff the status indicates an MergeInProgress.
- bool IsMergeInProgress() const { return code() == kMergeInProgress; }
-
- // Returns true iff the status indicates Incomplete
- bool IsIncomplete() const { return code() == kIncomplete; }
-
- // Return a string representation of this status suitable for printing.
- // Returns the string "OK" for success.
- std::string ToString() const;
-
- private:
- // OK status has a nullptr state_. Otherwise, state_ is a new[] array
- // of the following form:
- // state_[0..3] == length of message
- // state_[4] == code
- // state_[5..] == message
- const char* state_;
-
- enum Code {
- kOk = 0,
- kNotFound = 1,
- kCorruption = 2,
- kNotSupported = 3,
- kInvalidArgument = 4,
- kIOError = 5,
- kMergeInProgress = 6,
- kIncomplete = 7
- };
-
- Code code() const {
- return (state_ == nullptr) ? kOk : static_cast<Code>(state_[4]);
- }
-
- Status(Code code, const Slice& msg, const Slice& msg2);
- static const char* CopyState(const char* s);
-};
-
-inline Status::Status(const Status& s) {
- state_ = (s.state_ == nullptr) ? nullptr : CopyState(s.state_);
-}
-inline void Status::operator=(const Status& s) {
- // The following condition catches both aliasing (when this == &s),
- // and the common case where both s and *this are ok.
- if (state_ != s.state_) {
- delete[] state_;
- state_ = (s.state_ == nullptr) ? nullptr : CopyState(s.state_);
- }
-}
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_STATUS_H_
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <memory>
-#include <stdint.h>
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/table_stats.h"
-#include "rocksdb/options.h"
-
-namespace rocksdb {
-
-struct Options;
-class RandomAccessFile;
-struct ReadOptions;
-class TableCache;
-class WritableFile;
-
-using std::unique_ptr;
-
-// TableBuilder provides the interface used to build a Table
-// (an immutable and sorted map from keys to values).
-//
-// Multiple threads can invoke const methods on a TableBuilder without
-// external synchronization, but if any of the threads may call a
-// non-const method, all threads accessing the same TableBuilder must use
-// external synchronization.
-class TableBuilder {
- public:
- // REQUIRES: Either Finish() or Abandon() has been called.
- virtual ~TableBuilder() {}
-
- // Add key,value to the table being constructed.
- // REQUIRES: key is after any previously added key according to comparator.
- // REQUIRES: Finish(), Abandon() have not been called
- virtual void Add(const Slice& key, const Slice& value) = 0;
-
- // Return non-ok iff some error has been detected.
- virtual Status status() const = 0;
-
- // Finish building the table.
- // REQUIRES: Finish(), Abandon() have not been called
- virtual Status Finish() = 0;
-
- // Indicate that the contents of this builder should be abandoned.
- // If the caller is not going to call Finish(), it must call Abandon()
- // before destroying this builder.
- // REQUIRES: Finish(), Abandon() have not been called
- virtual void Abandon() = 0;
-
- // Number of calls to Add() so far.
- virtual uint64_t NumEntries() const = 0;
-
- // Size of the file generated so far. If invoked after a successful
- // Finish() call, returns the size of the final generated file.
- virtual uint64_t FileSize() const = 0;
-};
-
-// A Table is a sorted map from strings to strings. Tables are
-// immutable and persistent. A Table may be safely accessed from
-// multiple threads without external synchronization.
-class TableReader {
- public:
- virtual ~TableReader() {}
-
- // Determine whether there is a chance that the current table file
- // contains the key a key starting with iternal_prefix. The specific
- // table implementation can use bloom filter and/or other heuristic
- // to filter out this table as a whole.
- virtual bool PrefixMayMatch(const Slice& internal_prefix) = 0;
-
- // Returns a new iterator over the table contents.
- // The result of NewIterator() is initially invalid (caller must
- // call one of the Seek methods on the iterator before using it).
- virtual Iterator* NewIterator(const ReadOptions&) = 0;
-
- // Given a key, return an approximate byte offset in the file where
- // the data for that key begins (or would begin if the key were
- // present in the file). The returned value is in terms of file
- // bytes, and so includes effects like compression of the underlying data.
- // E.g., the approximate offset of the last key in the table will
- // be close to the file length.
- virtual uint64_t ApproximateOffsetOf(const Slice& key) = 0;
-
- // Returns true if the block for the specified key is in cache.
- // REQUIRES: key is in this table.
- virtual bool TEST_KeyInCache(const ReadOptions& options,
- const Slice& key) = 0;
-
- // Set up the table for Compaction. Might change some parameters with
- // posix_fadvise
- virtual void SetupForCompaction() = 0;
-
- virtual TableStats& GetTableStats() = 0;
-
- // Calls (*result_handler)(handle_context, ...) repeatedly, starting with
- // the entry found after a call to Seek(key), until result_handler returns
- // false, where k is the actual internal key for a row found and v as the
- // value of the key. didIO is true if I/O is involved in the operation. May
- // not make such a call if filter policy says that key is not present.
- //
- // mark_key_may_exist_handler needs to be called when it is configured to be
- // memory only and the key is not found in the block cache, with
- // the parameter to be handle_context.
- //
- // readOptions is the options for the read
- // key is the key to search for
- virtual Status Get(
- const ReadOptions& readOptions,
- const Slice& key,
- void* handle_context,
- bool (*result_handler)(void* handle_context, const Slice& k,
- const Slice& v, bool didIO),
- void (*mark_key_may_exist_handler)(void* handle_context) = nullptr) = 0;
-};
-
-// A base class for table factories
-class TableFactory {
- public:
- virtual ~TableFactory() {}
-
- // The type of the table.
- //
- // The client of this package should switch to a new name whenever
- // the table format implementation changes.
- //
- // Names starting with "rocksdb." are reserved and should not be used
- // by any clients of this package.
- virtual const char* Name() const = 0;
-
- // Returns a Table object table that can fetch data from file specified
- // in parameter file. It's the caller's responsibility to make sure
- // file is in the correct format.
- //
- // GetTableReader() is called in two places:
- // (1) TableCache::FindTable() calls the function when table cache miss
- // and cache the table object returned.
- // (1) SstFileReader (for SST Dump) opens the table and dump the table
- // contents using the interator of the table.
- // options and soptions are options. options is the general options.
- // Multiple configured can be accessed from there, including and not
- // limited to block cache and key comparators.
- // file is a file handler to handle the file for the table
- // file_size is the physical file size of the file
- // table_reader is the output table reader
- virtual Status GetTableReader(
- const Options& options, const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file, uint64_t file_size,
- unique_ptr<TableReader>* table_reader) const = 0;
-
- // Return a table builder to write to a file for this table type.
- //
- // It is called in several places:
- // (1) When flushing memtable to a level-0 output file, it creates a table
- // builder (In DBImpl::WriteLevel0Table(), by calling BuildTable())
- // (2) During compaction, it gets the builder for writing compaction output
- // files in DBImpl::OpenCompactionOutputFile().
- // (3) When recovering from transaction logs, it creates a table builder to
- // write to a level-0 output file (In DBImpl::WriteLevel0TableForRecovery,
- // by calling BuildTable())
- // (4) When running Repairer, it creates a table builder to convert logs to
- // SST files (In Repairer::ConvertLogToTable() by calling BuildTable())
- //
- // options is the general options. Multiple configured can be acceseed from
- // there, including and not limited to compression options.
- // file is a handle of a writable file. It is the caller's responsibility to
- // keep the file open and close the file after closing the table builder.
- // compression_type is the compression type to use in this table.
- virtual TableBuilder* GetTableBuilder(
- const Options& options, WritableFile* file,
- CompressionType compression_type) const = 0;
-};
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013 Facebook
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#pragma once
-
-#include <string>
-#include <unordered_map>
-
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-// TableStats contains a bunch of read-only stats of its associated
-// table.
-struct TableStats {
- public:
- // Other than basic table stats, each table may also have the user
- // collected stats.
- // The value of the user-collected stats are encoded as raw bytes --
- // users have to interprete these values by themselves.
- typedef
- std::unordered_map<std::string, std::string>
- UserCollectedStats;
-
- // the total size of all data blocks.
- uint64_t data_size = 0;
- // the total size of all index blocks.
- uint64_t index_size = 0;
- // total raw key size
- uint64_t raw_key_size = 0;
- // total raw value size
- uint64_t raw_value_size = 0;
- // the number of blocks in this table
- uint64_t num_data_blocks = 0;
- // the number of entries in this table
- uint64_t num_entries = 0;
-
- // The name of the filter policy used in this table.
- // If no filter policy is used, `filter_policy_name` will be an empty string.
- std::string filter_policy_name;
-
- // user collected stats
- UserCollectedStats user_collected_stats;
-};
-
-// `TableStatsCollector` provides the mechanism for users to collect their own
-// interested stats. This class is essentially a collection of callback
-// functions that will be invoked during table building.
-class TableStatsCollector {
- public:
- virtual ~TableStatsCollector() { }
- // Add() will be called when a new key/value pair is inserted into the table.
- // @params key the original key that is inserted into the table.
- // @params value the original value that is inserted into the table.
- virtual Status Add(const Slice& key, const Slice& value) = 0;
-
- // Finish() will be called when a table has already been built and is ready
- // for writing the stats block.
- // @params stats User will add their collected statistics to `stats`.
- virtual Status Finish(TableStats::UserCollectedStats* stats) = 0;
-
- // The name of the stats collector can be used for debugging purpose.
- virtual const char* Name() const = 0;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright 2008-present Facebook. All Rights Reserved.
-#ifndef STORAGE_ROCKSDB_INCLUDE_TRANSACTION_LOG_ITERATOR_H_
-#define STORAGE_ROCKSDB_INCLUDE_TRANSACTION_LOG_ITERATOR_H_
-
-#include "rocksdb/status.h"
-#include "rocksdb/types.h"
-#include "rocksdb/write_batch.h"
-#include <memory>
-#include <vector>
-
-namespace rocksdb {
-
-class LogFile;
-typedef std::vector<std::unique_ptr<LogFile>> VectorLogPtr;
-
-enum WalFileType {
- /* Indicates that WAL file is in archive directory. WAL files are moved from
- * the main db directory to archive directory once they are not live and stay
- * there until cleaned up. Files are cleaned depending on archive size
- * (Options::WAL_size_limit_MB) and time since last cleaning
- * (Options::WAL_ttl_seconds).
- */
- kArchivedLogFile = 0,
-
- /* Indicates that WAL file is live and resides in the main db directory */
- kAliveLogFile = 1
-} ;
-
-class LogFile {
- public:
- LogFile() {}
- virtual ~LogFile() {}
-
- // Returns log file's pathname relative to the main db dir
- // Eg. For a live-log-file = /000003.log
- // For an archived-log-file = /archive/000003.log
- virtual std::string PathName() const = 0;
-
-
- // Primary identifier for log file.
- // This is directly proportional to creation time of the log file
- virtual uint64_t LogNumber() const = 0;
-
- // Log file can be either alive or archived
- virtual WalFileType Type() const = 0;
-
- // Starting sequence number of writebatch written in this log file
- virtual SequenceNumber StartSequence() const = 0;
-
- // Size of log file on disk in Bytes
- virtual uint64_t SizeFileBytes() const = 0;
-};
-
-struct BatchResult {
- SequenceNumber sequence = SequenceNumber();
- std::unique_ptr<WriteBatch> writeBatchPtr;
-};
-
-// A TransactionLogIterator is used to iterate over the transactions in a db.
-// One run of the iterator is continuous, i.e. the iterator will stop at the
-// beginning of any gap in sequences
-class TransactionLogIterator {
- public:
- TransactionLogIterator() {}
- virtual ~TransactionLogIterator() {}
-
- // An iterator is either positioned at a WriteBatch or not valid.
- // This method returns true if the iterator is valid.
- // Can read data from a valid iterator.
- virtual bool Valid() = 0;
-
- // Moves the iterator to the next WriteBatch.
- // REQUIRES: Valid() to be true.
- virtual void Next() = 0;
-
- // Returns ok if the iterator is valid.
- // Returns the Error when something has gone wrong.
- virtual Status status() = 0;
-
- // If valid return's the current write_batch and the sequence number of the
- // earliest transaction contained in the batch.
- // ONLY use if Valid() is true and status() is OK.
- virtual BatchResult GetBatch() = 0;
-};
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_TRANSACTION_LOG_ITERATOR_H_
+++ /dev/null
-#ifndef STORAGE_ROCKSDB_INCLUDE_TYPES_H_
-#define STORAGE_ROCKSDB_INCLUDE_TYPES_H_
-
-#include <stdint.h>
-
-namespace rocksdb {
-
-// Define all public custom types here.
-
-// Represents a sequence number in a WAL file.
-typedef uint64_t SequenceNumber;
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_TYPES_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_ROCKSDB_UNIVERSAL_COMPACTION_OPTIONS_H
-#define STORAGE_ROCKSDB_UNIVERSAL_COMPACTION_OPTIONS_H
-
-#include <stddef.h>
-#include <string>
-#include <memory>
-#include <vector>
-#include <stdint.h>
-#include <climits>
-#include "rocksdb/slice.h"
-#include "rocksdb/statistics.h"
-
-namespace rocksdb {
-
-//
-// Algorithm used to make a compaction request stop picking new files
-// into a single compaction run
-//
-enum CompactionStopStyle {
- kCompactionStopStyleSimilarSize, // pick files of similar size
- kCompactionStopStyleTotalSize // total size of picked files > next file
-};
-
-class CompactionOptionsUniversal {
- public:
-
- // Percentage flexibilty while comparing file size. If the candidate file(s)
- // size is 1% smaller than the next file's size, then include next file into
- // this candidate set. // Default: 1
- unsigned int size_ratio;
-
- // The minimum number of files in a single compaction run. Default: 2
- unsigned int min_merge_width;
-
- // The maximum number of files in a single compaction run. Default: UINT_MAX
- unsigned int max_merge_width;
-
- // The size amplification is defined as the amount (in percentage) of
- // additional storage needed to store a single byte of data in the database.
- // For example, a size amplification of 2% means that a database that
- // contains 100 bytes of user-data may occupy upto 102 bytes of
- // physical storage. By this definition, a fully compacted database has
- // a size amplification of 0%. Rocksdb uses the following heuristic
- // to calculate size amplification: it assumes that all files excluding
- // the earliest file contribute to the size amplification.
- // Default: 200, which means that a 100 byte database could require upto
- // 300 bytes of storage.
- unsigned int max_size_amplification_percent;
-
- // If this option is set to be -1 (the default value), all the output files
- // will follow compression type specified.
- //
- // If this option is not negative, we will try to make sure compressed
- // size is just above this value. In normal cases, at least this percentage
- // of data will be compressed.
- // When we are compacting to a new file, here is the criteria whether
- // it needs to be compressed: assuming here are the list of files sorted
- // by generation time:
- // A1...An B1...Bm C1...Ct
- // where A1 is the newest and Ct is the oldest, and we are going to compact
- // B1...Bm, we calculate the total size of all the files as total_size, as
- // well as the total size of C1...Ct as total_C, the compaction output file
- // will be compressed iff
- // total_C / total_size < this percentage
- int compression_size_percent;
-
- // The algorithm used to stop picking files into a single compaction run
- // Default: kCompactionStopStyleTotalSize
- CompactionStopStyle stop_style;
-
- // Default set of parameters
- CompactionOptionsUniversal() :
- size_ratio(1),
- min_merge_width(2),
- max_merge_width(UINT_MAX),
- max_size_amplification_percent(200),
- compression_size_percent(-1),
- stop_style(kCompactionStopStyleTotalSize) {
- }
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_UNIVERSAL_COMPACTION_OPTIONS_H
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// WriteBatch holds a collection of updates to apply atomically to a DB.
-//
-// The updates are applied in the order in which they are added
-// to the WriteBatch. For example, the value of "key" will be "v3"
-// after the following batch is written:
-//
-// batch.Put("key", "v1");
-// batch.Delete("key");
-// batch.Put("key", "v2");
-// batch.Put("key", "v3");
-//
-// Multiple threads can invoke const methods on a WriteBatch without
-// external synchronization, but if any of the threads may call a
-// non-const method, all threads accessing the same WriteBatch must use
-// external synchronization.
-
-#ifndef STORAGE_ROCKSDB_INCLUDE_WRITE_BATCH_H_
-#define STORAGE_ROCKSDB_INCLUDE_WRITE_BATCH_H_
-
-#include <string>
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-class Slice;
-struct SliceParts;
-
-class WriteBatch {
- public:
- WriteBatch();
- ~WriteBatch();
-
- // Store the mapping "key->value" in the database.
- void Put(const Slice& key, const Slice& value);
-
- // Variant of Put() that gathers output like writev(2). The key and value
- // that will be written to the database are concatentations of arrays of
- // slices.
- void Put(const SliceParts& key, const SliceParts& value);
-
- // Merge "value" with the existing value of "key" in the database.
- // "key->merge(existing, value)"
- void Merge(const Slice& key, const Slice& value);
-
- // If the database contains a mapping for "key", erase it. Else do nothing.
- void Delete(const Slice& key);
-
- // Append a blob of arbitrary size to the records in this batch. The blob will
- // be stored in the transaction log but not in any other file. In particular,
- // it will not be persisted to the SST files. When iterating over this
- // WriteBatch, WriteBatch::Handler::LogData will be called with the contents
- // of the blob as it is encountered. Blobs, puts, deletes, and merges will be
- // encountered in the same order in thich they were inserted. The blob will
- // NOT consume sequence number(s) and will NOT increase the count of the batch
- //
- // Example application: add timestamps to the transaction log for use in
- // replication.
- void PutLogData(const Slice& blob);
-
- // Clear all updates buffered in this batch.
- void Clear();
-
- // Support for iterating over the contents of a batch.
- class Handler {
- public:
- virtual ~Handler();
- virtual void Put(const Slice& key, const Slice& value) = 0;
- // Merge and LogData are not pure virtual. Otherwise, we would break
- // existing clients of Handler on a source code level. The default
- // implementation of Merge simply throws a runtime exception.
- virtual void Merge(const Slice& key, const Slice& value);
- // The default implementation of LogData does nothing.
- virtual void LogData(const Slice& blob);
- virtual void Delete(const Slice& key) = 0;
- // Continue is called by WriteBatch::Iterate. If it returns false,
- // iteration is halted. Otherwise, it continues iterating. The default
- // implementation always returns true.
- virtual bool Continue();
- };
- Status Iterate(Handler* handler) const;
-
- // Retrieve the serialized version of this batch.
- std::string Data() { return rep_; }
-
- // Returns the number of updates in the batch
- int Count() const;
-
- // Constructor with a serialized string object
- explicit WriteBatch(std::string rep): rep_(rep) {}
-
- private:
- friend class WriteBatchInternal;
-
- std::string rep_; // See comment in write_batch.cc for the format of rep_
-
- // Intentionally copyable
-};
-
-} // namespace rocksdb
-
-#endif // STORAGE_ROCKSDB_INCLUDE_WRITE_BATCH_H_
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/db.h"
-
-namespace rocksdb {
-
-// This class contains APIs to stack rocksdb wrappers.Eg. Stack TTL over base d
-class StackableDB : public DB {
- public:
- explicit StackableDB(StackableDB* sdb) : sdb_(sdb) {}
-
- // Returns the DB object that is the lowermost component in the stack of DBs
- virtual DB* GetRawDB() {
- return sdb_->GetRawDB();
- }
-
- // convert a DB to StackableDB
- // TODO: This function does not work yet. Passing nullptr to StackableDB in
- // NewStackableDB's constructor will cause segfault on object's usage
- static StackableDB* DBToStackableDB(DB* db) {
- class NewStackableDB : public StackableDB {
- public:
- NewStackableDB(DB* db)
- : StackableDB(nullptr),
- db_(db) {}
-
- DB* GetRawDB() {
- return db_;
- }
-
- private:
- DB* db_;
- };
- return new NewStackableDB(db);
- }
-
- virtual Status Put(const WriteOptions& options,
- const Slice& key,
- const Slice& val) override {
- return sdb_->Put(options, key, val);
- }
-
- virtual Status Get(const ReadOptions& options,
- const Slice& key,
- std::string* value) override {
- return sdb_->Get(options, key, value);
- }
-
- virtual std::vector<Status> MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values)
- override {
- return sdb_->MultiGet(options, keys, values);
- }
-
- virtual bool KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found = nullptr) override {
- return sdb_->KeyMayExist(options, key, value, value_found);
- }
-
- virtual Status Delete(const WriteOptions& wopts, const Slice& key) override {
- return sdb_->Delete(wopts, key);
- }
-
- virtual Status Merge(const WriteOptions& options,
- const Slice& key,
- const Slice& value) override {
- return sdb_->Merge(options, key, value);
- }
-
-
- virtual Status Write(const WriteOptions& opts, WriteBatch* updates)
- override {
- return sdb_->Write(opts, updates);
- }
-
- virtual Iterator* NewIterator(const ReadOptions& opts) override {
- return sdb_->NewIterator(opts);
- }
-
- virtual const Snapshot* GetSnapshot() override {
- return sdb_->GetSnapshot();
- }
-
- virtual void ReleaseSnapshot(const Snapshot* snapshot) override {
- return sdb_->ReleaseSnapshot(snapshot);
- }
-
- virtual bool GetProperty(const Slice& property, std::string* value)
- override {
- return sdb_->GetProperty(property, value);
- }
-
- virtual void GetApproximateSizes(const Range* r, int n, uint64_t* sizes)
- override {
- return sdb_->GetApproximateSizes(r, n, sizes);
- }
-
- virtual void CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level = false,
- int target_level = -1) override {
- return sdb_->CompactRange(begin, end, reduce_level, target_level);
- }
-
- virtual int NumberLevels() override {
- return sdb_->NumberLevels();
- }
-
- virtual int MaxMemCompactionLevel() override {
- return sdb_->MaxMemCompactionLevel();
- }
-
- virtual int Level0StopWriteTrigger() override {
- return sdb_->Level0StopWriteTrigger();
- }
-
- virtual Status Flush(const FlushOptions& fopts) override {
- return sdb_->Flush(fopts);
- }
-
- virtual Status DisableFileDeletions() override {
- return sdb_->DisableFileDeletions();
- }
-
- virtual Status EnableFileDeletions() override {
- return sdb_->EnableFileDeletions();
- }
-
- virtual Status GetLiveFiles(std::vector<std::string>& vec, uint64_t* mfs,
- bool flush_memtable = true) override {
- return sdb_->GetLiveFiles(vec, mfs, flush_memtable);
- }
-
- virtual SequenceNumber GetLatestSequenceNumber() const override {
- return sdb_->GetLatestSequenceNumber();
- }
-
- virtual Status GetSortedWalFiles(VectorLogPtr& files) override {
- return sdb_->GetSortedWalFiles(files);
- }
-
- virtual Status DeleteFile(std::string name) override {
- return sdb_->DeleteFile(name);
- }
-
- virtual Status GetUpdatesSince(SequenceNumber seq_number,
- unique_ptr<TransactionLogIterator>* iter)
- override {
- return sdb_->GetUpdatesSince(seq_number, iter);
- }
-
- protected:
- StackableDB* sdb_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "stackable_db.h"
-
-namespace rocksdb {
-
-// This class contains APIs to open rocksdb with specific support eg. TTL
-class UtilityDB {
-
- public:
- // Open the database with TTL support.
- //
- // USE-CASES:
- // This API should be used to open the db when key-values inserted are
- // meant to be removed from the db in a non-strict 'ttl' amount of time
- // Therefore, this guarantees that key-values inserted will remain in the
- // db for >= ttl amount of time and the db will make efforts to remove the
- // key-values as soon as possible after ttl seconds of their insertion.
- //
- // BEHAVIOUR:
- // TTL is accepted in seconds
- // (int32_t)Timestamp(creation) is suffixed to values in Put internally
- // Expired TTL values deleted in compaction only:(Timestamp+ttl<time_now)
- // Get/Iterator may return expired entries(compaction not run on them yet)
- // Different TTL may be used during different Opens
- // Example: Open1 at t=0 with ttl=4 and insert k1,k2, close at t=2
- // Open2 at t=3 with ttl=5. Now k1,k2 should be deleted at t>=5
- // read_only=true opens in the usual read-only mode. Compactions will not be
- // triggered(neither manual nor automatic), so no expired entries removed
- //
- // CONSTRAINTS:
- // Not specifying/passing or non-positive TTL behaves like TTL = infinity
- //
- // !!!WARNING!!!:
- // Calling DB::Open directly to re-open a db created by this API will get
- // corrupt values(timestamp suffixed) and no ttl effect will be there
- // during the second Open, so use this API consistently to open the db
- // Be careful when passing ttl with a small positive value because the
- // whole database may be deleted in a small amount of time
- static Status OpenTtlDB(const Options& options,
- const std::string& name,
- StackableDB** dbptr,
- int32_t ttl = 0,
- bool read_only = false);
-};
-
-} // namespace rocksdb
+++ /dev/null
-{"__symbol_cache_version__":8,"b937ad5f80a8bd1156038b730ff56ec5":{"have":{"class":{"FacebookFbcodeLintEngine":71}},"need":{"class":{"ArcanistLintEngine":104,"ArcanistGeneratedLinter":488,"ArcanistNoLintLinter":577,"ArcanistTextLinter":658,"ArcanistPEP8Linter":1227,"FbcodeCppLinter":1715,"PfffCppLinter":1759,"ArcanistSpellingLinter":1875,"ArcanistFilenameLinter":4207,"Filesystem":357,"ArcanistLintSeverity":778}},"xmap":{"FacebookFbcodeLintEngine":["ArcanistLintEngine"]}},"02e2a613e371424b2108d2d6cb849d39":{"have":{"class":{"PfffCppLinter":71}},"need":{"function":{"Futures":875},"class":{"ArcanistLinter":93,"ExecFuture":756,"ArcanistLintMessage":1270,"ArcanistLintSeverity":1607}},"xmap":{"PfffCppLinter":["ArcanistLinter"]}},"4443484928afb005f585843d07b04190":{"have":{"class":{"FbcodeCppLinter":13}},"need":{"function":{"Futures":1265},"class":{"ArcanistLinter":37,"ExecFuture":934,"ArcanistLintSeverity":1729}},"xmap":{"FbcodeCppLinter":["ArcanistLinter"]}}}
\ No newline at end of file
+++ /dev/null
-<?php
-
-phutil_register_library('linters', __FILE__);
+++ /dev/null
-<?php
-
-/**
- * This file is automatically generated. Use 'arc liberate' to rebuild it.
- * @generated
- * @phutil-library-version 2
- */
-
-phutil_register_library_map(array(
- '__library_version__' => 2,
- 'class' =>
- array(
- 'FacebookFbcodeLintEngine' => 'lint_engine/FacebookFbcodeLintEngine.php',
- 'FbcodeCppLinter' => 'cpp_linter/FbcodeCppLinter.php',
- 'PfffCppLinter' => 'cpp_linter/PfffCppLinter.php',
- ),
- 'function' =>
- array(
- ),
- 'xmap' =>
- array(
- 'FacebookFbcodeLintEngine' => 'ArcanistLintEngine',
- 'FbcodeCppLinter' => 'ArcanistLinter',
- 'PfffCppLinter' => 'ArcanistLinter',
- ),
-));
+++ /dev/null
-<?php
-
-class FbcodeCppLinter extends ArcanistLinter {
- const CPPLINT = "/home/engshare/tools/cpplint";
- const LINT_ERROR = 1;
- const LINT_WARNING = 2;
- const C_FLAG = "--c_mode=true";
- private $rawLintOutput = array();
-
- public function willLintPaths(array $paths) {
- $futures = array();
- $ret_value = 0;
- $last_line = system("which cpplint", $ret_value);
- $CPP_LINT = false;
- if ($ret_value == 0) {
- $CPP_LINT = $last_line;
- } else if (file_exists(self::CPPLINT)) {
- $CPP_LINT = self::CPPLINT;
- }
-
- if ($CPP_LINT) {
- foreach ($paths as $p) {
- $lpath = $this->getEngine()->getFilePathOnDisk($p);
- $lpath_file = file($lpath);
- if (preg_match('/\.(c)$/', $lpath) ||
- preg_match('/-\*-.*Mode: C[; ].*-\*-/', $lpath_file[0]) ||
- preg_match('/vim(:.*)*:\s*(set\s+)?filetype=c\s*:/', $lpath_file[0])
- ) {
- $futures[$p] = new ExecFuture("%s %s %s 2>&1",
- $CPP_LINT, self::C_FLAG,
- $this->getEngine()->getFilePathOnDisk($p));
- } else {
- $futures[$p] = new ExecFuture("%s %s 2>&1",
- self::CPPLINT, $this->getEngine()->getFilePathOnDisk($p));
- }
- }
-
- foreach (Futures($futures)->limit(8) as $p => $f) {
- $this->rawLintOutput[$p] = $f->resolvex();
- }
- }
- return;
- }
-
- public function getLinterName() {
- return "FBCPP";
- }
-
- public function lintPath($path) {
- $msgs = $this->getCppLintOutput($path);
- foreach ($msgs as $m) {
- $this->raiseLintAtLine($m['line'], 0, $m['severity'], $m['msg']);
- }
- }
-
- public function getLintSeverityMap() {
- return array(
- self::LINT_WARNING => ArcanistLintSeverity::SEVERITY_WARNING,
- self::LINT_ERROR => ArcanistLintSeverity::SEVERITY_ERROR
- );
- }
-
- public function getLintNameMap() {
- return array(
- self::LINT_WARNING => "CppLint Warning",
- self::LINT_ERROR => "CppLint Error"
- );
- }
-
- private function getCppLintOutput($path) {
- list($output) = $this->rawLintOutput[$path];
-
- $msgs = array();
- $current = null;
- foreach (explode("\n", $output) as $line) {
- if (preg_match('/[^:]*\((\d+)\):(.*)$/', $line, $matches)) {
- if ($current) {
- $msgs[] = $current;
- }
- $line = $matches[1];
- $text = $matches[2];
- $sev = preg_match('/.*Warning.*/', $text)
- ? self::LINT_WARNING
- : self::LINT_ERROR;
- $current = array('line' => $line,
- 'msg' => $text,
- 'severity' => $sev);
- } else if ($current) {
- $current['msg'] .= ' ' . $line;
- }
- }
- if ($current) {
- $msgs[] = $current;
- }
-
- return $msgs;
- }
-}
-
+++ /dev/null
-<?php
-// Copyright 2004-present Facebook. All rights reserved.
-
-class PfffCppLinter extends ArcanistLinter {
- const PROGRAM = "/home/engshare/tools/checkCpp";
-
- public function getLinterName() {
- return "checkCpp";
- }
- public function getLintNameMap() {
- return array(
- );
- }
-
- public function getLintSeverityMap() {
- return array(
- );
- }
-
- public function willLintPaths(array $paths) {
- $program = false;
- $ret_value = 0;
- $last_line = system("which checkCpp", $ret_value);
- if ($ret_value == 0) {
- $program = $last_line;
- } else if (file_exists(self::PROGRAM)) {
- $program = self::PROGRAM;
- }
- if ($program) {
- $futures = array();
- foreach ($paths as $p) {
- $futures[$p] = new ExecFuture("%s --lint %s 2>&1",
- $program, $this->getEngine()->getFilePathOnDisk($p));
- }
- foreach (Futures($futures)->limit(8) as $p => $f) {
-
- list($stdout, $stderr) = $f->resolvex();
- $raw = json_decode($stdout, true);
- if (!is_array($raw)) {
- throw new Exception(
- "checkCpp returned invalid JSON!".
- "Stdout: {$stdout} Stderr: {$stderr}"
- );
- }
- foreach($raw as $err) {
- $this->addLintMessage(
- ArcanistLintMessage::newFromDictionary(
- array(
- 'path' => $err['file'],
- 'line' => $err['line'],
- 'char' => 0,
- 'name' => $err['name'],
- 'description' => $err['info'],
- 'code' => $this->getLinterName(),
- 'severity' => ArcanistLintSeverity::SEVERITY_WARNING,
- )
- )
- );
- }
- }
- }
- return;
- }
-
- public function lintPath($path) {
- return;
- }
-}
+++ /dev/null
-<?php
-// Copyright 2004-present Facebook. All rights reserved.
-
-class FacebookFbcodeLintEngine extends ArcanistLintEngine {
-
- public function buildLinters() {
- $linters = array();
- $paths = $this->getPaths();
-
- // Remove all deleted files, which are not checked by the
- // following linters.
- foreach ($paths as $key => $path) {
- if (!Filesystem::pathExists($this->getFilePathOnDisk($path))) {
- unset($paths[$key]);
- }
- }
-
- $generated_linter = new ArcanistGeneratedLinter();
- $linters[] = $generated_linter;
-
- $nolint_linter = new ArcanistNoLintLinter();
- $linters[] = $nolint_linter;
-
- $text_linter = new ArcanistTextLinter();
- $text_linter->setCustomSeverityMap(array(
- ArcanistTextLinter::LINT_LINE_WRAP
- => ArcanistLintSeverity::SEVERITY_ADVICE,
- ));
- $linters[] = $text_linter;
-
- $java_text_linter = new ArcanistTextLinter();
- $java_text_linter->setMaxLineLength(100);
- $java_text_linter->setCustomSeverityMap(array(
- ArcanistTextLinter::LINT_LINE_WRAP
- => ArcanistLintSeverity::SEVERITY_ADVICE,
- ));
- $linters[] = $java_text_linter;
-
- $pep8_options = $this->getPEP8WithTextOptions().',E302';
-
- $python_linter = new ArcanistPEP8Linter();
- $python_linter->setConfig(array('options' => $pep8_options));
- $linters[] = $python_linter;
-
- $python_2space_linter = new ArcanistPEP8Linter();
- $python_2space_linter->setConfig(array('options' => $pep8_options.',E111'));
- $linters[] = $python_2space_linter;
-
- // Currently we can't run cpplint in commit hook mode, because it
- // depends on having access to the working directory.
- if (!$this->getCommitHookMode()) {
- $cpp_linter = new FbcodeCppLinter();
- $cpp_linter2 = new PfffCppLinter();
- $linters[] = $cpp_linter;
- $linters[] = $cpp_linter2;
- }
-
- $spelling_linter = new ArcanistSpellingLinter();
- $linters[] = $spelling_linter;
-
- foreach ($paths as $path) {
- $is_text = false;
-
- $text_extensions = (
- '/\.('.
- 'cpp|cxx|c|cc|h|hpp|hxx|tcc|'.
- 'py|rb|hs|pl|pm|tw|'.
- 'php|phpt|css|js|'.
- 'java|'.
- 'thrift|'.
- 'lua|'.
- 'siv|'.
- 'txt'.
- ')$/'
- );
- if (preg_match($text_extensions, $path)) {
- $is_text = true;
- }
- if ($is_text) {
- $nolint_linter->addPath($path);
-
- $generated_linter->addPath($path);
- $generated_linter->addData($path, $this->loadData($path));
-
- if (preg_match('/\.java$/', $path)) {
- $java_text_linter->addPath($path);
- $java_text_linter->addData($path, $this->loadData($path));
- } else {
- $text_linter->addPath($path);
- $text_linter->addData($path, $this->loadData($path));
- }
-
- $spelling_linter->addPath($path);
- $spelling_linter->addData($path, $this->loadData($path));
- }
- if (isset($cpp_linter) && isset($cpp_linter2) &&
- preg_match('/\.(cpp|c|cc|cxx|h|hh|hpp|hxx|tcc)$/', $path)) {
- $cpp_linter->addPath($path);
- $cpp_linter->addData($path, $this->loadData($path));
- $cpp_linter2->addPath($path);
- $cpp_linter2->addData($path, $this->loadData($path));
-
- }
-
- // Match *.py and contbuild config files
- if (preg_match('/(\.(py|tw|smcprops)|^contbuild\/configs\/[^\/]*)$/',
- $path)) {
- $space_count = 4;
- $real_path = $this->getFilePathOnDisk($path);
- $dir = dirname($real_path);
- do {
- if (file_exists($dir.'/.python2space')) {
- $space_count = 2;
- break;
- }
- $dir = dirname($dir);
- } while ($dir != '/' && $dir != '.');
-
- if ($space_count == 4) {
- $cur_path_linter = $python_linter;
- } else {
- $cur_path_linter = $python_2space_linter;
- }
- $cur_path_linter->addPath($path);
- $cur_path_linter->addData($path, $this->loadData($path));
-
- if (preg_match('/\.tw$/', $path)) {
- $cur_path_linter->setCustomSeverityMap(array(
- 'E251' => ArcanistLintSeverity::SEVERITY_DISABLED,
- ));
- }
- }
-
-
-
- }
-
- $name_linter = new ArcanistFilenameLinter();
- $linters[] = $name_linter;
- foreach ($paths as $path) {
- $name_linter->addPath($path);
- }
-
- return $linters;
- }
-
-}
+++ /dev/null
-This directory contains interfaces and implementations that isolate the
-rest of the package from platform details.
-
-Code in the rest of the package includes "port.h" from this directory.
-"port.h" in turn includes a platform specific "port_<platform>.h" file
-that provides the platform specific implementation.
-
-See port_posix.h for an example of what must be provided in a platform
-specific header file.
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-// AtomicPointer provides storage for a lock-free pointer.
-// Platform-dependent implementation of AtomicPointer:
-// - If the platform provides a cheap barrier, we use it with raw pointers
-// - If cstdatomic is present (on newer versions of gcc, it is), we use
-// a cstdatomic-based AtomicPointer. However we prefer the memory
-// barrier based version, because at least on a gcc 4.4 32-bit build
-// on linux, we have encountered a buggy <cstdatomic>
-// implementation. Also, some <cstdatomic> implementations are much
-// slower than a memory-barrier based implementation (~16ns for
-// <cstdatomic> based acquire-load vs. ~1ns for a barrier based
-// acquire-load).
-// This code is based on atomicops-internals-* in Google's perftools:
-// http://code.google.com/p/google-perftools/source/browse/#svn%2Ftrunk%2Fsrc%2Fbase
-
-#ifndef PORT_ATOMIC_POINTER_H_
-#define PORT_ATOMIC_POINTER_H_
-
-#include <stdint.h>
-#ifdef LEVELDB_CSTDATOMIC_PRESENT
-#include <cstdatomic>
-#endif
-#ifdef OS_WIN
-#include <windows.h>
-#endif
-#ifdef OS_MACOSX
-#include <libkern/OSAtomic.h>
-#endif
-
-#if defined(_M_X64) || defined(__x86_64__)
-#define ARCH_CPU_X86_FAMILY 1
-#elif defined(_M_IX86) || defined(__i386__) || defined(__i386)
-#define ARCH_CPU_X86_FAMILY 1
-#elif defined(__ARMEL__)
-#define ARCH_CPU_ARM_FAMILY 1
-#endif
-
-namespace rocksdb {
-namespace port {
-
-// Define MemoryBarrier() if available
-// Windows on x86
-#if defined(OS_WIN) && defined(COMPILER_MSVC) && defined(ARCH_CPU_X86_FAMILY)
-// windows.h already provides a MemoryBarrier(void) macro
-// http://msdn.microsoft.com/en-us/library/ms684208(v=vs.85).aspx
-#define LEVELDB_HAVE_MEMORY_BARRIER
-
-// Gcc on x86
-#elif defined(ARCH_CPU_X86_FAMILY) && defined(__GNUC__)
-inline void MemoryBarrier() {
- // See http://gcc.gnu.org/ml/gcc/2003-04/msg01180.html for a discussion on
- // this idiom. Also see http://en.wikipedia.org/wiki/Memory_ordering.
- __asm__ __volatile__("" : : : "memory");
-}
-#define LEVELDB_HAVE_MEMORY_BARRIER
-
-// Sun Studio
-#elif defined(ARCH_CPU_X86_FAMILY) && defined(__SUNPRO_CC)
-inline void MemoryBarrier() {
- // See http://gcc.gnu.org/ml/gcc/2003-04/msg01180.html for a discussion on
- // this idiom. Also see http://en.wikipedia.org/wiki/Memory_ordering.
- asm volatile("" : : : "memory");
-}
-#define LEVELDB_HAVE_MEMORY_BARRIER
-
-// Mac OS
-#elif defined(OS_MACOSX)
-inline void MemoryBarrier() {
- OSMemoryBarrier();
-}
-#define LEVELDB_HAVE_MEMORY_BARRIER
-
-// ARM Linux
-#elif defined(ARCH_CPU_ARM_FAMILY) && defined(__linux__)
-typedef void (*LinuxKernelMemoryBarrierFunc)(void);
-// The Linux ARM kernel provides a highly optimized device-specific memory
-// barrier function at a fixed memory address that is mapped in every
-// user-level process.
-//
-// This beats using CPU-specific instructions which are, on single-core
-// devices, un-necessary and very costly (e.g. ARMv7-A "dmb" takes more
-// than 180ns on a Cortex-A8 like the one on a Nexus One). Benchmarking
-// shows that the extra function call cost is completely negligible on
-// multi-core devices.
-//
-inline void MemoryBarrier() {
- (*(LinuxKernelMemoryBarrierFunc)0xffff0fa0)();
-}
-#define LEVELDB_HAVE_MEMORY_BARRIER
-
-#endif
-
-// AtomicPointer built using platform-specific MemoryBarrier()
-#if defined(LEVELDB_HAVE_MEMORY_BARRIER)
-class AtomicPointer {
- private:
- void* rep_;
- public:
- AtomicPointer() { }
- explicit AtomicPointer(void* p) : rep_(p) {}
- inline void* NoBarrier_Load() const { return rep_; }
- inline void NoBarrier_Store(void* v) { rep_ = v; }
- inline void* Acquire_Load() const {
- void* result = rep_;
- MemoryBarrier();
- return result;
- }
- inline void Release_Store(void* v) {
- MemoryBarrier();
- rep_ = v;
- }
-};
-
-// AtomicPointer based on <cstdatomic>
-#elif defined(LEVELDB_CSTDATOMIC_PRESENT)
-class AtomicPointer {
- private:
- std::atomic<void*> rep_;
- public:
- AtomicPointer() { }
- explicit AtomicPointer(void* v) : rep_(v) { }
- inline void* Acquire_Load() const {
- return rep_.load(std::memory_order_acquire);
- }
- inline void Release_Store(void* v) {
- rep_.store(v, std::memory_order_release);
- }
- inline void* NoBarrier_Load() const {
- return rep_.load(std::memory_order_relaxed);
- }
- inline void NoBarrier_Store(void* v) {
- rep_.store(v, std::memory_order_relaxed);
- }
-};
-
-// We have neither MemoryBarrier(), nor <cstdatomic>
-#else
-#error Please implement AtomicPointer for this platform.
-
-#endif
-
-#undef LEVELDB_HAVE_MEMORY_BARRIER
-#undef ARCH_CPU_X86_FAMILY
-#undef ARCH_CPU_ARM_FAMILY
-
-} // namespace port
-} // namespace rocksdb
-
-#endif // PORT_ATOMIC_POINTER_H_
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_LEVELDB_PORT_PORT_H_
-#define STORAGE_LEVELDB_PORT_PORT_H_
-
-#include <string.h>
-
-// Include the appropriate platform specific file below. If you are
-// porting to a new platform, see "port_example.h" for documentation
-// of what the new port_<platform>.h file must provide.
-#if defined(LEVELDB_PLATFORM_POSIX)
-# include "port/port_posix.h"
-#elif defined(LEVELDB_PLATFORM_CHROMIUM)
-# include "port/port_chromium.h"
-#endif
-
-#endif // STORAGE_LEVELDB_PORT_PORT_H_
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// This file contains the specification, but not the implementations,
-// of the types/operations/etc. that should be defined by a platform
-// specific port_<platform>.h file. Use this file as a reference for
-// how to port this package to a new platform.
-
-#ifndef STORAGE_LEVELDB_PORT_PORT_EXAMPLE_H_
-#define STORAGE_LEVELDB_PORT_PORT_EXAMPLE_H_
-
-namespace rocksdb {
-namespace port {
-
-// TODO(jorlow): Many of these belong more in the environment class rather than
-// here. We should try moving them and see if it affects perf.
-
-// The following boolean constant must be true on a little-endian machine
-// and false otherwise.
-static const bool kLittleEndian = true /* or some other expression */;
-
-// ------------------ Threading -------------------
-
-// A Mutex represents an exclusive lock.
-class Mutex {
- public:
- Mutex();
- ~Mutex();
-
- // Lock the mutex. Waits until other lockers have exited.
- // Will deadlock if the mutex is already locked by this thread.
- void Lock();
-
- // Unlock the mutex.
- // REQUIRES: This mutex was locked by this thread.
- void Unlock();
-
- // Optionally crash if this thread does not hold this mutex.
- // The implementation must be fast, especially if NDEBUG is
- // defined. The implementation is allowed to skip all checks.
- void AssertHeld();
-};
-
-class CondVar {
- public:
- explicit CondVar(Mutex* mu);
- ~CondVar();
-
- // Atomically release *mu and block on this condition variable until
- // either a call to SignalAll(), or a call to Signal() that picks
- // this thread to wakeup.
- // REQUIRES: this thread holds *mu
- void Wait();
-
- // If there are some threads waiting, wake up at least one of them.
- void Signal();
-
- // Wake up all waiting threads.
- void SignallAll();
-};
-
-// Thread-safe initialization.
-// Used as follows:
-// static port::OnceType init_control = LEVELDB_ONCE_INIT;
-// static void Initializer() { ... do something ...; }
-// ...
-// port::InitOnce(&init_control, &Initializer);
-typedef intptr_t OnceType;
-#define LEVELDB_ONCE_INIT 0
-extern void InitOnce(port::OnceType*, void (*initializer)());
-
-// A type that holds a pointer that can be read or written atomically
-// (i.e., without word-tearing.)
-class AtomicPointer {
- private:
- intptr_t rep_;
- public:
- // Initialize to arbitrary value
- AtomicPointer();
-
- // Initialize to hold v
- explicit AtomicPointer(void* v) : rep_(v) { }
-
- // Read and return the stored pointer with the guarantee that no
- // later memory access (read or write) by this thread can be
- // reordered ahead of this read.
- void* Acquire_Load() const;
-
- // Set v as the stored pointer with the guarantee that no earlier
- // memory access (read or write) by this thread can be reordered
- // after this store.
- void Release_Store(void* v);
-
- // Read the stored pointer with no ordering guarantees.
- void* NoBarrier_Load() const;
-
- // Set va as the stored pointer with no ordering guarantees.
- void NoBarrier_Store(void* v);
-};
-
-// ------------------ Compression -------------------
-
-// Store the snappy compression of "input[0,input_length-1]" in *output.
-// Returns false if snappy is not supported by this port.
-extern bool Snappy_Compress(const char* input, size_t input_length,
- std::string* output);
-
-// If input[0,input_length-1] looks like a valid snappy compressed
-// buffer, store the size of the uncompressed data in *result and
-// return true. Else return false.
-extern bool Snappy_GetUncompressedLength(const char* input, size_t length,
- size_t* result);
-
-// Attempt to snappy uncompress input[0,input_length-1] into *output.
-// Returns true if successful, false if the input is invalid lightweight
-// compressed data.
-//
-// REQUIRES: at least the first "n" bytes of output[] must be writable
-// where "n" is the result of a successful call to
-// Snappy_GetUncompressedLength.
-extern bool Snappy_Uncompress(const char* input_data, size_t input_length,
- char* output);
-
-// ------------------ Miscellaneous -------------------
-
-// If heap profiling is not supported, returns false.
-// Else repeatedly calls (*func)(arg, data, n) and then returns true.
-// The concatenation of all "data[0,n-1]" fragments is the heap profile.
-extern bool GetHeapProfile(void (*func)(void*, const char*, int), void* arg);
-
-} // namespace port
-} // namespace rocksdb
-
-#endif // STORAGE_LEVELDB_PORT_PORT_EXAMPLE_H_
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "port/port_posix.h"
-
-#include <cstdlib>
-#include <stdio.h>
-#include <string.h>
-#include "util/logging.h"
-
-namespace rocksdb {
-namespace port {
-
-static void PthreadCall(const char* label, int result) {
- if (result != 0) {
- fprintf(stderr, "pthread %s: %s\n", label, strerror(result));
- abort();
- }
-}
-
-Mutex::Mutex(bool adaptive) {
-#ifdef OS_LINUX
- if (!adaptive) {
- PthreadCall("init mutex", pthread_mutex_init(&mu_, NULL));
- } else {
- pthread_mutexattr_t mutex_attr;
- PthreadCall("init mutex attr", pthread_mutexattr_init(&mutex_attr));
- PthreadCall("set mutex attr",
- pthread_mutexattr_settype(&mutex_attr,
- PTHREAD_MUTEX_ADAPTIVE_NP));
- PthreadCall("init mutex", pthread_mutex_init(&mu_, &mutex_attr));
- PthreadCall("destroy mutex attr",
- pthread_mutexattr_destroy(&mutex_attr));
- }
-#else // ignore adaptive for non-linux platform
- PthreadCall("init mutex", pthread_mutex_init(&mu_, NULL));
-#endif // OS_LINUX
-}
-
-Mutex::~Mutex() { PthreadCall("destroy mutex", pthread_mutex_destroy(&mu_)); }
-
-void Mutex::Lock() { PthreadCall("lock", pthread_mutex_lock(&mu_)); }
-
-void Mutex::Unlock() { PthreadCall("unlock", pthread_mutex_unlock(&mu_)); }
-
-CondVar::CondVar(Mutex* mu)
- : mu_(mu) {
- PthreadCall("init cv", pthread_cond_init(&cv_, NULL));
-}
-
-CondVar::~CondVar() { PthreadCall("destroy cv", pthread_cond_destroy(&cv_)); }
-
-void CondVar::Wait() {
- PthreadCall("wait", pthread_cond_wait(&cv_, &mu_->mu_));
-}
-
-void CondVar::Signal() {
- PthreadCall("signal", pthread_cond_signal(&cv_));
-}
-
-void CondVar::SignalAll() {
- PthreadCall("broadcast", pthread_cond_broadcast(&cv_));
-}
-
-RWMutex::RWMutex() { PthreadCall("init mutex", pthread_rwlock_init(&mu_, NULL)); }
-
-RWMutex::~RWMutex() { PthreadCall("destroy mutex", pthread_rwlock_destroy(&mu_)); }
-
-void RWMutex::ReadLock() { PthreadCall("read lock", pthread_rwlock_rdlock(&mu_)); }
-
-void RWMutex::WriteLock() { PthreadCall("write lock", pthread_rwlock_wrlock(&mu_)); }
-
-void RWMutex::Unlock() { PthreadCall("unlock", pthread_rwlock_unlock(&mu_)); }
-
-void InitOnce(OnceType* once, void (*initializer)()) {
- PthreadCall("once", pthread_once(once, initializer));
-}
-
-} // namespace port
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// See port_example.h for documentation for the following types/functions.
-
-#ifndef STORAGE_LEVELDB_PORT_PORT_POSIX_H_
-#define STORAGE_LEVELDB_PORT_PORT_POSIX_H_
-
-#undef PLATFORM_IS_LITTLE_ENDIAN
-#if defined(OS_MACOSX)
- #include <machine/endian.h>
- #if defined(__DARWIN_LITTLE_ENDIAN) && defined(__DARWIN_BYTE_ORDER)
- #define PLATFORM_IS_LITTLE_ENDIAN \
- (__DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN)
- #endif
-#elif defined(OS_SOLARIS)
- #include <sys/isa_defs.h>
- #ifdef _LITTLE_ENDIAN
- #define PLATFORM_IS_LITTLE_ENDIAN true
- #else
- #define PLATFORM_IS_LITTLE_ENDIAN false
- #endif
-#elif defined(OS_FREEBSD) || defined(OS_OPENBSD) || defined(OS_NETBSD) ||\
- defined(OS_DRAGONFLYBSD) || defined(OS_ANDROID)
- #include <sys/types.h>
- #include <sys/endian.h>
-#else
- #include <endian.h>
-#endif
-#include <pthread.h>
-#ifdef SNAPPY
-#include <snappy.h>
-#endif
-
-#ifdef ZLIB
-#include <zlib.h>
-#endif
-
-#ifdef BZIP2
-#include <bzlib.h>
-#endif
-
-#include <stdint.h>
-#include <string>
-#include <string.h>
-#include "rocksdb/options.h"
-#include "port/atomic_pointer.h"
-
-#ifndef PLATFORM_IS_LITTLE_ENDIAN
-#define PLATFORM_IS_LITTLE_ENDIAN (__BYTE_ORDER == __LITTLE_ENDIAN)
-#endif
-
-#if defined(OS_MACOSX) || defined(OS_SOLARIS) || defined(OS_FREEBSD) ||\
- defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_DRAGONFLYBSD) ||\
- defined(OS_ANDROID)
-// Use fread/fwrite/fflush on platforms without _unlocked variants
-#define fread_unlocked fread
-#define fwrite_unlocked fwrite
-#define fflush_unlocked fflush
-#endif
-
-#if defined(OS_MACOSX) || defined(OS_FREEBSD) ||\
- defined(OS_OPENBSD) || defined(OS_DRAGONFLYBSD)
-// Use fsync() on platforms without fdatasync()
-#define fdatasync fsync
-#endif
-
-#if defined(OS_ANDROID) && __ANDROID_API__ < 9
-// fdatasync() was only introduced in API level 9 on Android. Use fsync()
-// when targetting older platforms.
-#define fdatasync fsync
-#endif
-
-namespace rocksdb {
-namespace port {
-
-static const bool kLittleEndian = PLATFORM_IS_LITTLE_ENDIAN;
-#undef PLATFORM_IS_LITTLE_ENDIAN
-
-class CondVar;
-
-class Mutex {
- public:
- /* implicit */ Mutex(bool adaptive = false);
- ~Mutex();
-
- void Lock();
- void Unlock();
- void AssertHeld() { }
-
- private:
- friend class CondVar;
- pthread_mutex_t mu_;
-
- // No copying
- Mutex(const Mutex&);
- void operator=(const Mutex&);
-};
-
-class RWMutex {
- public:
- RWMutex();
- ~RWMutex();
-
- void ReadLock();
- void WriteLock();
- void Unlock();
- void AssertHeld() { }
-
- private:
- pthread_rwlock_t mu_; // the underlying platform mutex
-
- // No copying allowed
- RWMutex(const RWMutex&);
- void operator=(const RWMutex&);
-};
-
-class CondVar {
- public:
- explicit CondVar(Mutex* mu);
- ~CondVar();
- void Wait();
- void Signal();
- void SignalAll();
- private:
- pthread_cond_t cv_;
- Mutex* mu_;
-};
-
-typedef pthread_once_t OnceType;
-#define LEVELDB_ONCE_INIT PTHREAD_ONCE_INIT
-extern void InitOnce(OnceType* once, void (*initializer)());
-
-inline bool Snappy_Compress(const CompressionOptions& opts, const char* input,
- size_t length, ::std::string* output) {
-#ifdef SNAPPY
- output->resize(snappy::MaxCompressedLength(length));
- size_t outlen;
- snappy::RawCompress(input, length, &(*output)[0], &outlen);
- output->resize(outlen);
- return true;
-#endif
-
- return false;
-}
-
-inline bool Snappy_GetUncompressedLength(const char* input, size_t length,
- size_t* result) {
-#ifdef SNAPPY
- return snappy::GetUncompressedLength(input, length, result);
-#else
- return false;
-#endif
-}
-
-inline bool Snappy_Uncompress(const char* input, size_t length,
- char* output) {
-#ifdef SNAPPY
- return snappy::RawUncompress(input, length, output);
-#else
- return false;
-#endif
-}
-
-inline bool Zlib_Compress(const CompressionOptions& opts, const char* input,
- size_t length, ::std::string* output) {
-#ifdef ZLIB
- // The memLevel parameter specifies how much memory should be allocated for
- // the internal compression state.
- // memLevel=1 uses minimum memory but is slow and reduces compression ratio.
- // memLevel=9 uses maximum memory for optimal speed.
- // The default value is 8. See zconf.h for more details.
- static const int memLevel = 8;
- z_stream _stream;
- memset(&_stream, 0, sizeof(z_stream));
- int st = deflateInit2(&_stream, opts.level, Z_DEFLATED, opts.window_bits,
- memLevel, opts.strategy);
- if (st != Z_OK) {
- return false;
- }
-
- // Resize output to be the plain data length.
- // This may not be big enough if the compression actually expands data.
- output->resize(length);
-
- // Compress the input, and put compressed data in output.
- _stream.next_in = (Bytef *)input;
- _stream.avail_in = length;
-
- // Initialize the output size.
- _stream.avail_out = length;
- _stream.next_out = (Bytef *)&(*output)[0];
-
- int old_sz =0, new_sz =0, new_sz_delta =0;
- bool done = false;
- while (!done) {
- int st = deflate(&_stream, Z_FINISH);
- switch (st) {
- case Z_STREAM_END:
- done = true;
- break;
- case Z_OK:
- // No output space. Increase the output space by 20%.
- // (Should we fail the compression since it expands the size?)
- old_sz = output->size();
- new_sz_delta = (int)(output->size() * 0.2);
- new_sz = output->size() + (new_sz_delta < 10 ? 10 : new_sz_delta);
- output->resize(new_sz);
- // Set more output.
- _stream.next_out = (Bytef *)&(*output)[old_sz];
- _stream.avail_out = new_sz - old_sz;
- break;
- case Z_BUF_ERROR:
- default:
- deflateEnd(&_stream);
- return false;
- }
- }
-
- output->resize(output->size() - _stream.avail_out);
- deflateEnd(&_stream);
- return true;
-#endif
- return false;
-}
-
-inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
- int* decompress_size, int windowBits = -14) {
-#ifdef ZLIB
- z_stream _stream;
- memset(&_stream, 0, sizeof(z_stream));
-
- // For raw inflate, the windowBits should be -8..-15.
- // If windowBits is bigger than zero, it will use either zlib
- // header or gzip header. Adding 32 to it will do automatic detection.
- int st = inflateInit2(&_stream,
- windowBits > 0 ? windowBits + 32 : windowBits);
- if (st != Z_OK) {
- return nullptr;
- }
-
- _stream.next_in = (Bytef *)input_data;
- _stream.avail_in = input_length;
-
- // Assume the decompressed data size will 5x of compressed size.
- int output_len = input_length * 5;
- char* output = new char[output_len];
- int old_sz = output_len;
-
- _stream.next_out = (Bytef *)output;
- _stream.avail_out = output_len;
-
- char* tmp = nullptr;
- int output_len_delta;
- bool done = false;
-
- //while(_stream.next_in != nullptr && _stream.avail_in != 0) {
- while (!done) {
- int st = inflate(&_stream, Z_SYNC_FLUSH);
- switch (st) {
- case Z_STREAM_END:
- done = true;
- break;
- case Z_OK:
- // No output space. Increase the output space by 20%.
- old_sz = output_len;
- output_len_delta = (int)(output_len * 0.2);
- output_len += output_len_delta < 10 ? 10 : output_len_delta;
- tmp = new char[output_len];
- memcpy(tmp, output, old_sz);
- delete[] output;
- output = tmp;
-
- // Set more output.
- _stream.next_out = (Bytef *)(output + old_sz);
- _stream.avail_out = output_len - old_sz;
- break;
- case Z_BUF_ERROR:
- default:
- delete[] output;
- inflateEnd(&_stream);
- return nullptr;
- }
- }
-
- *decompress_size = output_len - _stream.avail_out;
- inflateEnd(&_stream);
- return output;
-#endif
-
- return nullptr;
-}
-
-inline bool BZip2_Compress(const CompressionOptions& opts, const char* input,
- size_t length, ::std::string* output) {
-#ifdef BZIP2
- bz_stream _stream;
- memset(&_stream, 0, sizeof(bz_stream));
-
- // Block size 1 is 100K.
- // 0 is for silent.
- // 30 is the default workFactor
- int st = BZ2_bzCompressInit(&_stream, 1, 0, 30);
- if (st != BZ_OK) {
- return false;
- }
-
- // Resize output to be the plain data length.
- // This may not be big enough if the compression actually expands data.
- output->resize(length);
-
- // Compress the input, and put compressed data in output.
- _stream.next_in = (char *)input;
- _stream.avail_in = length;
-
- // Initialize the output size.
- _stream.next_out = (char *)&(*output)[0];
- _stream.avail_out = length;
-
- int old_sz =0, new_sz =0;
- while(_stream.next_in != nullptr && _stream.avail_in != 0) {
- int st = BZ2_bzCompress(&_stream, BZ_FINISH);
- switch (st) {
- case BZ_STREAM_END:
- break;
- case BZ_FINISH_OK:
- // No output space. Increase the output space by 20%.
- // (Should we fail the compression since it expands the size?)
- old_sz = output->size();
- new_sz = (int)(output->size() * 1.2);
- output->resize(new_sz);
- // Set more output.
- _stream.next_out = (char *)&(*output)[old_sz];
- _stream.avail_out = new_sz - old_sz;
- break;
- case Z_BUF_ERROR:
- default:
- BZ2_bzCompressEnd(&_stream);
- return false;
- }
- }
-
- output->resize(output->size() - _stream.avail_out);
- BZ2_bzCompressEnd(&_stream);
- return true;
- return output;
-#endif
- return false;
-}
-
-inline char* BZip2_Uncompress(const char* input_data, size_t input_length,
- int* decompress_size) {
-#ifdef BZIP2
- bz_stream _stream;
- memset(&_stream, 0, sizeof(bz_stream));
-
- int st = BZ2_bzDecompressInit(&_stream, 0, 0);
- if (st != BZ_OK) {
- return nullptr;
- }
-
- _stream.next_in = (char *)input_data;
- _stream.avail_in = input_length;
-
- // Assume the decompressed data size will be 5x of compressed size.
- int output_len = input_length * 5;
- char* output = new char[output_len];
- int old_sz = output_len;
-
- _stream.next_out = (char *)output;
- _stream.avail_out = output_len;
-
- char* tmp = nullptr;
-
- while(_stream.next_in != nullptr && _stream.avail_in != 0) {
- int st = BZ2_bzDecompress(&_stream);
- switch (st) {
- case BZ_STREAM_END:
- break;
- case Z_OK:
- // No output space. Increase the output space by 20%.
- old_sz = output_len;
- output_len = (int)(output_len * 1.2);
- tmp = new char[output_len];
- memcpy(tmp, output, old_sz);
- delete[] output;
- output = tmp;
-
- // Set more output.
- _stream.next_out = (char *)(output + old_sz);
- _stream.avail_out = output_len - old_sz;
- break;
- case Z_BUF_ERROR:
- default:
- delete[] output;
- BZ2_bzDecompressEnd(&_stream);
- return nullptr;
- }
- }
-
- *decompress_size = output_len - _stream.avail_out;
- BZ2_bzDecompressEnd(&_stream);
- return output;
-#endif
- return nullptr;
-}
-
-inline bool GetHeapProfile(void (*func)(void*, const char*, int), void* arg) {
- return false;
-}
-
-} // namespace port
-} // namespace rocksdb
-
-#endif // STORAGE_LEVELDB_PORT_PORT_POSIX_H_
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "util/stack_trace.h"
-
-#ifdef OS_LINUX
-
-#include <execinfo.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-namespace rocksdb {
-
-static const char* GetExecutableName()
-{
- static char name[1024];
-
- char link[1024];
- snprintf(link, sizeof(link), "/proc/%d/exe", getpid());
- auto read = readlink(link, name, sizeof(name));
- if (-1 == read) {
- return nullptr;
- } else {
- name[read] = 0;
- return name;
- }
-}
-
-static void StackTraceHandler(int sig) {
- // reset to default handler
- signal(sig, SIG_DFL);
-
- fprintf(stderr, "Received signal %d (%s)\n", sig, strsignal(sig));
-
- const int kMaxFrames = 100;
- void *frames[kMaxFrames];
-
- auto num_frames = backtrace(frames, kMaxFrames);
- auto symbols = backtrace_symbols(frames, num_frames);
-
- auto executable = GetExecutableName();
-
- const int kSkip = 2; // skip the top two signal handler related frames
-
- for (int i = kSkip; i < num_frames; ++i)
- {
- fprintf(stderr, "#%-2d %p ", i - kSkip, frames[i]);
- if (symbols) {
- fprintf(stderr, "%s ", symbols[i]);
- }
- if (executable) {
- // out source to addr2line, for the address translation
- const int kLineMax = 256;
- char cmd[kLineMax];
- sprintf(cmd,"addr2line %p -e %s 2>&1", frames[i] , executable);
- auto f = popen(cmd, "r");
- if (f) {
- char line[kLineMax];
- while (fgets(line, sizeof(line), f)) {
- fprintf(stderr, "%s", line);
- }
- pclose(f);
- } else {
- fprintf(stderr, "\n");
- }
- } else {
- fprintf(stderr, "\n");
- }
- }
-
- // re-signal to default handler (so we still get core dump if needed...)
- raise(sig);
-}
-
-void InstallStackTraceHandler() {
- // just use the plain old signal as it's simple and sufficient
- // for this use case
- signal(SIGILL, StackTraceHandler);
- signal(SIGSEGV, StackTraceHandler);
- signal(SIGBUS, StackTraceHandler);
- signal(SIGABRT, StackTraceHandler);
-
- printf("Installed stack trace handler for SIGILL SIGSEGV SIGBUS SIGABRT\n");
-
-}
-
-} // namespace rocksdb
-
-#else // no-op for non-linux system for now
-
-namespace rocksdb {
-
-void InstallStackTraceHandler() {}
-
-}
-
-#endif // OS_LINUX
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-// MSVC didn't ship with this file until the 2010 version.
-
-#ifndef STORAGE_LEVELDB_PORT_WIN_STDINT_H_
-#define STORAGE_LEVELDB_PORT_WIN_STDINT_H_
-
-#if !defined(_MSC_VER)
-#error This file should only be included when compiling with MSVC.
-#endif
-
-// Define C99 equivalent types.
-typedef signed char int8_t;
-typedef signed short int16_t;
-typedef signed int int32_t;
-typedef signed long long int64_t;
-typedef unsigned char uint8_t;
-typedef unsigned short uint16_t;
-typedef unsigned int uint32_t;
-typedef unsigned long long uint64_t;
-
-#endif // STORAGE_LEVELDB_PORT_WIN_STDINT_H_
+++ /dev/null
-This is a pre-compiled version of snappy 1.0.5 from
-http://code.google.com/p/snappy/downloads/detail?name=snappy-1.0.5.tar.gz
-
-This is compiled using gcc-4.6.2-glibc-2.13 on centos5.2
-and uses jemalloc. This is here so that one can compile leveldb to use
-snappy easily.
-
-To compile,:
-cd ./snappy-1.0.5
-execute either make or compile.sh.
-This will create *.so and *.a in snappy-1.0.5/.libs.
-
-run unit tests:
-./snappy-1.0.5/snappy_unittest
+++ /dev/null
-snappy-1.0.5/.libs
\ No newline at end of file
+++ /dev/null
-snappy-c.lo: snappy-c.cc snappy.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib/gcc/x86_64-redhat-linux-gnu/4.6.2/include/stddef.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/string \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/c++config.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/os_defines.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/features.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/sys/cdefs.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/wordsize.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/gnu/stubs.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/gnu/stubs-64.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/cpu_defines.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/stringfwd.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/char_traits.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/stl_algobase.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/functexcept.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/exception_defines.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/cpp_type_traits.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/ext/numeric_traits.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/move.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/concept_check.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/stl_iterator_base_types.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/stl_iterator_base_funcs.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/debug/debug.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/stdio.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib/gcc/x86_64-redhat-linux-gnu/4.6.2/include/stdarg.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/wchar.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/xlocale.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/ostream_insert.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/unistd.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/posix_opt.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/environments.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/confname.h \
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-snappy-stubs-public.h:
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-snappy-c.h:
+++ /dev/null
-snappy-sinksource.lo: snappy-sinksource.cc \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/string.h \
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- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib/gcc/x86_64-redhat-linux-gnu/4.6.2/include/stddef.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/xlocale.h \
- snappy-sinksource.h
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/string.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/features.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/sys/cdefs.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/wordsize.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/gnu/stubs.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/gnu/stubs-64.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib/gcc/x86_64-redhat-linux-gnu/4.6.2/include/stddef.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/xlocale.h:
-
-snappy-sinksource.h:
+++ /dev/null
-snappy-stubs-internal.lo: snappy-stubs-internal.cc \
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-
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-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/range_access.h:
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-
-snappy-stubs-internal.h:
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-config.h:
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-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/basic_ios.h:
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-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/wctype.h:
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-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/ctype_base.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/streambuf_iterator.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/ctype_inline.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/locale_facets.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/basic_ios.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/ostream.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/istream:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/istream.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/assert.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/string.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/sys/mman.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/mman.h:
-
-snappy-stubs-public.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib/gcc/x86_64-redhat-linux-gnu/4.6.2/include/stdint.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/stdint.h:
+++ /dev/null
-snappy.lo: snappy.cc snappy.h \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib/gcc/x86_64-redhat-linux-gnu/4.6.2/include/stddef.h \
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-snappy-sinksource.h:
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+++ /dev/null
-snappy_unittest-snappy-test.o: snappy-test.cc snappy-test.h \
- snappy-stubs-internal.h config.h \
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+++ /dev/null
-snappy_unittest-snappy_unittest.o: snappy_unittest.cc \
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/math.h \
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-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/wctype.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/ctype_base.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/streambuf_iterator.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/x86_64-facebook-linux/bits/ctype_inline.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/locale_facets.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/basic_ios.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/ostream.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/istream:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/include/c++/4.6.2/bits/istream.tcc:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/assert.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/string.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/sys/mman.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/mman.h:
-
-snappy-test.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/libio.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/_G_config.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/stdio_lim.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/sys_errlist.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/stdio.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/sys/resource.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/bits/resource.h:
-
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/sys/time.h:
-
-snappy-sinksource.h:
+++ /dev/null
-../libsnappy.la
\ No newline at end of file
+++ /dev/null
-# libsnappy.la - a libtool library file
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='libsnappy.so.1'
-
-# Names of this library.
-library_names='libsnappy.so.1.1.1 libsnappy.so.1 libsnappy.so'
-
-# The name of the static archive.
-old_library='libsnappy.a'
-
-# Linker flags that can not go in dependency_libs.
-inherited_linker_flags=''
-
-# Libraries that this one depends upon.
-dependency_libs=''
-
-# Names of additional weak libraries provided by this library
-weak_library_names=''
-
-# Version information for libsnappy.
-current=2
-age=1
-revision=1
-
-# Is this an already installed library?
-installed=yes
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=no
-
-# Files to dlopen/dlpreopen
-dlopen=''
-dlpreopen=''
-
-# Directory that this library needs to be installed in:
-libdir='/usr/local/lib'
+++ /dev/null
-libsnappy.so.1.0.5
\ No newline at end of file
+++ /dev/null
-libsnappy.so.1.0.5
\ No newline at end of file
+++ /dev/null
-opensource@google.com
+++ /dev/null
-Copyright 2011, Google Inc.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
- * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
- * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ /dev/null
-------------------------------------------------------------------------
-r60 | snappy.mirrorbot@gmail.com | 2012-02-23 18:00:36 +0100 (Thu, 23 Feb 2012) | 57 lines
-
-For 32-bit platforms, do not try to accelerate multiple neighboring
-32-bit loads with a 64-bit load during compression (it's not a win).
-
-The main target for this optimization is ARM, but 32-bit x86 gets
-a small gain, too, although there is noise in the microbenchmarks.
-It's a no-op for 64-bit x86. It does not affect decompression.
-
-Microbenchmark results on a Cortex-A9 1GHz, using g++ 4.6.2 (from
-Ubuntu/Linaro), -O2 -DNDEBUG -Wa,-march=armv7a -mtune=cortex-a9
--mthumb-interwork, minimum 1000 iterations:
-
- Benchmark Time(ns) CPU(ns) Iterations
- ---------------------------------------------------
- BM_ZFlat/0 1158277 1160000 1000 84.2MB/s html (23.57 %) [ +4.3%]
- BM_ZFlat/1 14861782 14860000 1000 45.1MB/s urls (50.89 %) [ +1.1%]
- BM_ZFlat/2 393595 390000 1000 310.5MB/s jpg (99.88 %) [ +0.0%]
- BM_ZFlat/3 650583 650000 1000 138.4MB/s pdf (82.13 %) [ +3.1%]
- BM_ZFlat/4 4661480 4660000 1000 83.8MB/s html4 (23.55 %) [ +4.3%]
- BM_ZFlat/5 491973 490000 1000 47.9MB/s cp (48.12 %) [ +2.0%]
- BM_ZFlat/6 193575 192678 1038 55.2MB/s c (42.40 %) [ +9.0%]
- BM_ZFlat/7 62343 62754 3187 56.5MB/s lsp (48.37 %) [ +2.6%]
- BM_ZFlat/8 17708468 17710000 1000 55.5MB/s xls (41.34 %) [ -0.3%]
- BM_ZFlat/9 3755345 3760000 1000 38.6MB/s txt1 (59.81 %) [ +8.2%]
- BM_ZFlat/10 3324217 3320000 1000 36.0MB/s txt2 (64.07 %) [ +4.2%]
- BM_ZFlat/11 10139932 10140000 1000 40.1MB/s txt3 (57.11 %) [ +6.4%]
- BM_ZFlat/12 13532109 13530000 1000 34.0MB/s txt4 (68.35 %) [ +5.0%]
- BM_ZFlat/13 4690847 4690000 1000 104.4MB/s bin (18.21 %) [ +4.1%]
- BM_ZFlat/14 830682 830000 1000 43.9MB/s sum (51.88 %) [ +1.2%]
- BM_ZFlat/15 84784 85011 2235 47.4MB/s man (59.36 %) [ +1.1%]
- BM_ZFlat/16 1293254 1290000 1000 87.7MB/s pb (23.15 %) [ +2.3%]
- BM_ZFlat/17 2775155 2780000 1000 63.2MB/s gaviota (38.27 %) [+12.2%]
-
-Core i7 in 32-bit mode (only one run and 100 iterations, though, so noisy):
-
- Benchmark Time(ns) CPU(ns) Iterations
- ---------------------------------------------------
- BM_ZFlat/0 227582 223464 3043 437.0MB/s html (23.57 %) [ +7.4%]
- BM_ZFlat/1 2982430 2918455 233 229.4MB/s urls (50.89 %) [ +2.9%]
- BM_ZFlat/2 46967 46658 15217 2.5GB/s jpg (99.88 %) [ +0.0%]
- BM_ZFlat/3 115298 114864 5833 783.2MB/s pdf (82.13 %) [ +1.5%]
- BM_ZFlat/4 913440 899743 778 434.2MB/s html4 (23.55 %) [ +0.3%]
- BM_ZFlat/5 110302 108571 7000 216.1MB/s cp (48.12 %) [ +0.0%]
- BM_ZFlat/6 44409 43372 15909 245.2MB/s c (42.40 %) [ +0.8%]
- BM_ZFlat/7 15713 15643 46667 226.9MB/s lsp (48.37 %) [ +2.7%]
- BM_ZFlat/8 2625539 2602230 269 377.4MB/s xls (41.34 %) [ +1.4%]
- BM_ZFlat/9 808884 811429 875 178.8MB/s txt1 (59.81 %) [ -3.9%]
- BM_ZFlat/10 709532 700000 1000 170.5MB/s txt2 (64.07 %) [ +0.0%]
- BM_ZFlat/11 2177682 2162162 333 188.2MB/s txt3 (57.11 %) [ -1.4%]
- BM_ZFlat/12 2849640 2840000 250 161.8MB/s txt4 (68.35 %) [ -1.4%]
- BM_ZFlat/13 849760 835476 778 585.8MB/s bin (18.21 %) [ +1.2%]
- BM_ZFlat/14 165940 164571 4375 221.6MB/s sum (51.88 %) [ +1.4%]
- BM_ZFlat/15 20939 20571 35000 196.0MB/s man (59.36 %) [ +2.1%]
- BM_ZFlat/16 239209 236544 2917 478.1MB/s pb (23.15 %) [ +4.2%]
- BM_ZFlat/17 616206 610000 1000 288.2MB/s gaviota (38.27 %) [ -1.6%]
-
-R=sanjay
-
-------------------------------------------------------------------------
-r59 | snappy.mirrorbot@gmail.com | 2012-02-21 18:02:17 +0100 (Tue, 21 Feb 2012) | 107 lines
-
-Enable the use of unaligned loads and stores for ARM-based architectures
-where they are available (ARMv7 and higher). This gives a significant
-speed boost on ARM, both for compression and decompression.
-It should not affect x86 at all.
-
-There are more changes possible to speed up ARM, but it might not be
-that easy to do without hurting x86 or making the code uglier.
-Also, we de not try to use NEON yet.
-
-Microbenchmark results on a Cortex-A9 1GHz, using g++ 4.6.2 (from Ubuntu/Linaro),
--O2 -DNDEBUG -Wa,-march=armv7a -mtune=cortex-a9 -mthumb-interwork:
-
-Benchmark Time(ns) CPU(ns) Iterations
----------------------------------------------------
-BM_UFlat/0 524806 529100 378 184.6MB/s html [+33.6%]
-BM_UFlat/1 5139790 5200000 100 128.8MB/s urls [+28.8%]
-BM_UFlat/2 86540 84166 1901 1.4GB/s jpg [ +0.6%]
-BM_UFlat/3 215351 210176 904 428.0MB/s pdf [+29.8%]
-BM_UFlat/4 2144490 2100000 100 186.0MB/s html4 [+33.3%]
-BM_UFlat/5 194482 190000 1000 123.5MB/s cp [+36.2%]
-BM_UFlat/6 91843 90175 2107 117.9MB/s c [+38.6%]
-BM_UFlat/7 28535 28426 6684 124.8MB/s lsp [+34.7%]
-BM_UFlat/8 9206600 9200000 100 106.7MB/s xls [+42.4%]
-BM_UFlat/9 1865273 1886792 106 76.9MB/s txt1 [+32.5%]
-BM_UFlat/10 1576809 1587301 126 75.2MB/s txt2 [+32.3%]
-BM_UFlat/11 4968450 4900000 100 83.1MB/s txt3 [+32.7%]
-BM_UFlat/12 6673970 6700000 100 68.6MB/s txt4 [+32.8%]
-BM_UFlat/13 2391470 2400000 100 203.9MB/s bin [+29.2%]
-BM_UFlat/14 334601 344827 522 105.8MB/s sum [+30.6%]
-BM_UFlat/15 37404 38080 5252 105.9MB/s man [+33.8%]
-BM_UFlat/16 535470 540540 370 209.2MB/s pb [+31.2%]
-BM_UFlat/17 1875245 1886792 106 93.2MB/s gaviota [+37.8%]
-BM_UValidate/0 178425 179533 1114 543.9MB/s html [ +2.7%]
-BM_UValidate/1 2100450 2000000 100 334.8MB/s urls [ +5.0%]
-BM_UValidate/2 1039 1044 172413 113.3GB/s jpg [ +3.4%]
-BM_UValidate/3 59423 59470 3363 1.5GB/s pdf [ +7.8%]
-BM_UValidate/4 760716 766283 261 509.8MB/s html4 [ +6.5%]
-BM_ZFlat/0 1204632 1204819 166 81.1MB/s html (23.57 %) [+32.8%]
-BM_ZFlat/1 15656190 15600000 100 42.9MB/s urls (50.89 %) [+27.6%]
-BM_ZFlat/2 403336 410677 487 294.8MB/s jpg (99.88 %) [+16.5%]
-BM_ZFlat/3 664073 671140 298 134.0MB/s pdf (82.13 %) [+28.4%]
-BM_ZFlat/4 4961940 4900000 100 79.7MB/s html4 (23.55 %) [+30.6%]
-BM_ZFlat/5 500664 501253 399 46.8MB/s cp (48.12 %) [+33.4%]
-BM_ZFlat/6 217276 215982 926 49.2MB/s c (42.40 %) [+25.0%]
-BM_ZFlat/7 64122 65487 3054 54.2MB/s lsp (48.37 %) [+36.1%]
-BM_ZFlat/8 18045730 18000000 100 54.6MB/s xls (41.34 %) [+34.4%]
-BM_ZFlat/9 4051530 4000000 100 36.3MB/s txt1 (59.81 %) [+25.0%]
-BM_ZFlat/10 3451800 3500000 100 34.1MB/s txt2 (64.07 %) [+25.7%]
-BM_ZFlat/11 11052340 11100000 100 36.7MB/s txt3 (57.11 %) [+24.3%]
-BM_ZFlat/12 14538690 14600000 100 31.5MB/s txt4 (68.35 %) [+24.7%]
-BM_ZFlat/13 5041850 5000000 100 97.9MB/s bin (18.21 %) [+32.0%]
-BM_ZFlat/14 908840 909090 220 40.1MB/s sum (51.88 %) [+22.2%]
-BM_ZFlat/15 86921 86206 1972 46.8MB/s man (59.36 %) [+42.2%]
-BM_ZFlat/16 1312315 1315789 152 86.0MB/s pb (23.15 %) [+34.5%]
-BM_ZFlat/17 3173120 3200000 100 54.9MB/s gaviota (38.27%) [+28.1%]
-
-
-The move from 64-bit to 32-bit operations for the copies also affected 32-bit x86;
-positive on the decompression side, and slightly negative on the compression side
-(unless that is noise; I only ran once):
-
-Benchmark Time(ns) CPU(ns) Iterations
------------------------------------------------------
-BM_UFlat/0 86279 86140 7778 1.1GB/s html [ +7.5%]
-BM_UFlat/1 839265 822622 778 813.9MB/s urls [ +9.4%]
-BM_UFlat/2 9180 9143 87500 12.9GB/s jpg [ +1.2%]
-BM_UFlat/3 35080 35000 20000 2.5GB/s pdf [+10.1%]
-BM_UFlat/4 350318 345000 2000 1.1GB/s html4 [ +7.0%]
-BM_UFlat/5 33808 33472 21212 701.0MB/s cp [ +9.0%]
-BM_UFlat/6 15201 15214 46667 698.9MB/s c [+14.9%]
-BM_UFlat/7 4652 4651 159091 762.9MB/s lsp [ +7.5%]
-BM_UFlat/8 1285551 1282528 538 765.7MB/s xls [+10.7%]
-BM_UFlat/9 282510 281690 2414 514.9MB/s txt1 [+13.6%]
-BM_UFlat/10 243494 239286 2800 498.9MB/s txt2 [+14.4%]
-BM_UFlat/11 743625 740000 1000 550.0MB/s txt3 [+14.3%]
-BM_UFlat/12 999441 989717 778 464.3MB/s txt4 [+16.1%]
-BM_UFlat/13 412402 410076 1707 1.2GB/s bin [ +7.3%]
-BM_UFlat/14 54876 54000 10000 675.3MB/s sum [+13.0%]
-BM_UFlat/15 6146 6100 100000 660.8MB/s man [+14.8%]
-BM_UFlat/16 90496 90286 8750 1.2GB/s pb [ +4.0%]
-BM_UFlat/17 292650 292000 2500 602.0MB/s gaviota [+18.1%]
-BM_UValidate/0 49620 49699 14286 1.9GB/s html [ +0.0%]
-BM_UValidate/1 501371 500000 1000 1.3GB/s urls [ +0.0%]
-BM_UValidate/2 232 227 3043478 521.5GB/s jpg [ +1.3%]
-BM_UValidate/3 17250 17143 43750 5.1GB/s pdf [ -1.3%]
-BM_UValidate/4 198643 200000 3500 1.9GB/s html4 [ -0.9%]
-BM_ZFlat/0 227128 229415 3182 425.7MB/s html (23.57 %) [ -1.4%]
-BM_ZFlat/1 2970089 2960000 250 226.2MB/s urls (50.89 %) [ -1.9%]
-BM_ZFlat/2 45683 44999 15556 2.6GB/s jpg (99.88 %) [ +2.2%]
-BM_ZFlat/3 114661 113136 6364 795.1MB/s pdf (82.13 %) [ -1.5%]
-BM_ZFlat/4 919702 914286 875 427.2MB/s html4 (23.55%) [ -1.3%]
-BM_ZFlat/5 108189 108422 6364 216.4MB/s cp (48.12 %) [ -1.2%]
-BM_ZFlat/6 44525 44000 15909 241.7MB/s c (42.40 %) [ -2.9%]
-BM_ZFlat/7 15973 15857 46667 223.8MB/s lsp (48.37 %) [ +0.0%]
-BM_ZFlat/8 2677888 2639405 269 372.1MB/s xls (41.34 %) [ -1.4%]
-BM_ZFlat/9 800715 780000 1000 186.0MB/s txt1 (59.81 %) [ -0.4%]
-BM_ZFlat/10 700089 700000 1000 170.5MB/s txt2 (64.07 %) [ -2.9%]
-BM_ZFlat/11 2159356 2138365 318 190.3MB/s txt3 (57.11 %) [ -0.3%]
-BM_ZFlat/12 2796143 2779923 259 165.3MB/s txt4 (68.35 %) [ -1.4%]
-BM_ZFlat/13 856458 835476 778 585.8MB/s bin (18.21 %) [ -0.1%]
-BM_ZFlat/14 166908 166857 4375 218.6MB/s sum (51.88 %) [ -1.4%]
-BM_ZFlat/15 21181 20857 35000 193.3MB/s man (59.36 %) [ -0.8%]
-BM_ZFlat/16 244009 239973 2917 471.3MB/s pb (23.15 %) [ -1.4%]
-BM_ZFlat/17 596362 590000 1000 297.9MB/s gaviota (38.27%) [ +0.0%]
-
-R=sanjay
-
-------------------------------------------------------------------------
-r58 | snappy.mirrorbot@gmail.com | 2012-02-11 23:11:22 +0100 (Sat, 11 Feb 2012) | 9 lines
-
-Lower the size allocated in the "corrupted input" unit test from 256 MB
-to 2 MB. This fixes issues with running the unit test on platforms with
-little RAM (e.g. some ARM boards).
-
-Also, reactivate the 2 MB test for 64-bit platforms; there's no good
-reason why it shouldn't be.
-
-R=sanjay
-
-------------------------------------------------------------------------
-r57 | snappy.mirrorbot@gmail.com | 2012-01-08 18:55:48 +0100 (Sun, 08 Jan 2012) | 2 lines
-
-Minor refactoring to accomodate changes in Google's internal code tree.
-
-------------------------------------------------------------------------
-r56 | snappy.mirrorbot@gmail.com | 2012-01-04 14:10:46 +0100 (Wed, 04 Jan 2012) | 19 lines
-
-Fix public issue r57: Fix most warnings with -Wall, mostly signed/unsigned
-warnings. There are still some in the unit test, but the main .cc file should
-be clean. We haven't enabled -Wall for the default build, since the unit test
-is still not clean.
-
-This also fixes a real bug in the open-source implementation of
-ReadFileToStringOrDie(); it would not detect errors correctly.
-
-I had to go through some pains to avoid performance loss as the types
-were changed; I think there might still be some with 32-bit if and only if LFS
-is enabled (ie., size_t is 64-bit), but for regular 32-bit and 64-bit I can't
-see any losses, and I've diffed the generated GCC assembler between the old and
-new code without seeing any significant choices. If anything, it's ever so
-slightly faster.
-
-This may or may not enable compression of very large blocks (>2^32 bytes)
-when size_t is 64-bit, but I haven't checked, and it is still not a supported
-case.
-
-------------------------------------------------------------------------
-r55 | snappy.mirrorbot@gmail.com | 2012-01-04 11:46:39 +0100 (Wed, 04 Jan 2012) | 6 lines
-
-Add a framing format description. We do not have any implementation of this at
-the current point, but there seems to be enough of a general interest in the
-topic (cf. public bug #34).
-
-R=csilvers,sanjay
-
-------------------------------------------------------------------------
-r54 | snappy.mirrorbot@gmail.com | 2011-12-05 22:27:26 +0100 (Mon, 05 Dec 2011) | 81 lines
-
-Speed up decompression by moving the refill check to the end of the loop.
-
-This seems to work because in most of the branches, the compiler can evaluate
-“ip_limit_ - ip” in a more efficient way than reloading ip_limit_ from memory
-(either by already having the entire expression in a register, or reconstructing
-it from “avail”, or something else). Memory loads, even from L1, are seemingly
-costly in the big picture at the current decompression speeds.
-
-Microbenchmarks (64-bit, opt mode):
-
-Westmere (Intel Core i7):
-
- Benchmark Time(ns) CPU(ns) Iterations
- --------------------------------------------
- BM_UFlat/0 74492 74491 187894 1.3GB/s html [ +5.9%]
- BM_UFlat/1 712268 712263 19644 940.0MB/s urls [ +3.8%]
- BM_UFlat/2 10591 10590 1000000 11.2GB/s jpg [ -6.8%]
- BM_UFlat/3 29643 29643 469915 3.0GB/s pdf [ +7.9%]
- BM_UFlat/4 304669 304667 45930 1.3GB/s html4 [ +4.8%]
- BM_UFlat/5 28508 28507 490077 823.1MB/s cp [ +4.0%]
- BM_UFlat/6 12415 12415 1000000 856.5MB/s c [ +8.6%]
- BM_UFlat/7 3415 3415 4084723 1039.0MB/s lsp [+18.0%]
- BM_UFlat/8 979569 979563 14261 1002.5MB/s xls [ +5.8%]
- BM_UFlat/9 230150 230148 60934 630.2MB/s txt1 [ +5.2%]
- BM_UFlat/10 197167 197166 71135 605.5MB/s txt2 [ +4.7%]
- BM_UFlat/11 607394 607390 23041 670.1MB/s txt3 [ +5.6%]
- BM_UFlat/12 808502 808496 17316 568.4MB/s txt4 [ +5.0%]
- BM_UFlat/13 372791 372788 37564 1.3GB/s bin [ +3.3%]
- BM_UFlat/14 44541 44541 313969 818.8MB/s sum [ +5.7%]
- BM_UFlat/15 4833 4833 2898697 834.1MB/s man [ +4.8%]
- BM_UFlat/16 79855 79855 175356 1.4GB/s pb [ +4.8%]
- BM_UFlat/17 245845 245843 56838 715.0MB/s gaviota [ +5.8%]
-
-Clovertown (Intel Core 2):
-
- Benchmark Time(ns) CPU(ns) Iterations
- --------------------------------------------
- BM_UFlat/0 107911 107890 100000 905.1MB/s html [ +2.2%]
- BM_UFlat/1 1011237 1011041 10000 662.3MB/s urls [ +2.5%]
- BM_UFlat/2 26775 26770 523089 4.4GB/s jpg [ +0.0%]
- BM_UFlat/3 48103 48095 290618 1.8GB/s pdf [ +3.4%]
- BM_UFlat/4 437724 437644 31937 892.6MB/s html4 [ +2.1%]
- BM_UFlat/5 39607 39600 358284 592.5MB/s cp [ +2.4%]
- BM_UFlat/6 18227 18224 768191 583.5MB/s c [ +2.7%]
- BM_UFlat/7 5171 5170 2709437 686.4MB/s lsp [ +3.9%]
- BM_UFlat/8 1560291 1559989 8970 629.5MB/s xls [ +3.6%]
- BM_UFlat/9 335401 335343 41731 432.5MB/s txt1 [ +3.0%]
- BM_UFlat/10 287014 286963 48758 416.0MB/s txt2 [ +2.8%]
- BM_UFlat/11 888522 888356 15752 458.1MB/s txt3 [ +2.9%]
- BM_UFlat/12 1186600 1186378 10000 387.3MB/s txt4 [ +3.1%]
- BM_UFlat/13 572295 572188 24468 855.4MB/s bin [ +2.1%]
- BM_UFlat/14 64060 64049 218401 569.4MB/s sum [ +4.1%]
- BM_UFlat/15 7264 7263 1916168 555.0MB/s man [ +1.4%]
- BM_UFlat/16 108853 108836 100000 1039.1MB/s pb [ +1.7%]
- BM_UFlat/17 364289 364223 38419 482.6MB/s gaviota [ +4.9%]
-
-Barcelona (AMD Opteron):
-
- Benchmark Time(ns) CPU(ns) Iterations
- --------------------------------------------
- BM_UFlat/0 103900 103871 100000 940.2MB/s html [ +8.3%]
- BM_UFlat/1 1000435 1000107 10000 669.5MB/s urls [ +6.6%]
- BM_UFlat/2 24659 24652 567362 4.8GB/s jpg [ +0.1%]
- BM_UFlat/3 48206 48193 291121 1.8GB/s pdf [ +5.0%]
- BM_UFlat/4 421980 421850 33174 926.0MB/s html4 [ +7.3%]
- BM_UFlat/5 40368 40357 346994 581.4MB/s cp [ +8.7%]
- BM_UFlat/6 19836 19830 708695 536.2MB/s c [ +8.0%]
- BM_UFlat/7 6100 6098 2292774 581.9MB/s lsp [ +9.0%]
- BM_UFlat/8 1693093 1692514 8261 580.2MB/s xls [ +8.0%]
- BM_UFlat/9 365991 365886 38225 396.4MB/s txt1 [ +7.1%]
- BM_UFlat/10 311330 311238 44950 383.6MB/s txt2 [ +7.6%]
- BM_UFlat/11 975037 974737 14376 417.5MB/s txt3 [ +6.9%]
- BM_UFlat/12 1303558 1303175 10000 352.6MB/s txt4 [ +7.3%]
- BM_UFlat/13 517448 517290 27144 946.2MB/s bin [ +5.5%]
- BM_UFlat/14 66537 66518 210352 548.3MB/s sum [ +7.5%]
- BM_UFlat/15 7976 7974 1760383 505.6MB/s man [ +5.6%]
- BM_UFlat/16 103121 103092 100000 1097.0MB/s pb [ +8.7%]
- BM_UFlat/17 391431 391314 35733 449.2MB/s gaviota [ +6.5%]
-
-R=sanjay
-
-------------------------------------------------------------------------
-r53 | snappy.mirrorbot@gmail.com | 2011-11-23 12:14:17 +0100 (Wed, 23 Nov 2011) | 88 lines
-
-Speed up decompression by making the fast path for literals faster.
-
-We do the fast-path step as soon as possible; in fact, as soon as we know the
-literal length. Since we usually hit the fast path, we can then skip the checks
-for long literals and available input space (beyond what the fast path check
-already does).
-
-Note that this changes the decompression Writer API; however, it does not
-change the ABI, since writers are always templatized and as such never
-cross compilation units. The new API is slightly more general, in that it
-doesn't hard-code the value 16. Note that we also take care to check
-for len <= 16 first, since the other two checks almost always succeed
-(so we don't want to waste time checking for them until we have to).
-
-The improvements are most marked on Nehalem, but are generally positive
-on other platforms as well. All microbenchmarks are 64-bit, opt.
-
-Clovertown (Core 2):
-
- Benchmark Time(ns) CPU(ns) Iterations
- --------------------------------------------
- BM_UFlat/0 110226 110224 100000 886.0MB/s html [ +1.5%]
- BM_UFlat/1 1036523 1036508 10000 646.0MB/s urls [ -0.8%]
- BM_UFlat/2 26775 26775 522570 4.4GB/s jpg [ +0.0%]
- BM_UFlat/3 49738 49737 280974 1.8GB/s pdf [ +0.3%]
- BM_UFlat/4 446790 446792 31334 874.3MB/s html4 [ +0.8%]
- BM_UFlat/5 40561 40562 350424 578.5MB/s cp [ +1.3%]
- BM_UFlat/6 18722 18722 746903 568.0MB/s c [ +1.4%]
- BM_UFlat/7 5373 5373 2608632 660.5MB/s lsp [ +8.3%]
- BM_UFlat/8 1615716 1615718 8670 607.8MB/s xls [ +2.0%]
- BM_UFlat/9 345278 345281 40481 420.1MB/s txt1 [ +1.4%]
- BM_UFlat/10 294855 294855 47452 404.9MB/s txt2 [ +1.6%]
- BM_UFlat/11 914263 914263 15316 445.2MB/s txt3 [ +1.1%]
- BM_UFlat/12 1222694 1222691 10000 375.8MB/s txt4 [ +1.4%]
- BM_UFlat/13 584495 584489 23954 837.4MB/s bin [ -0.6%]
- BM_UFlat/14 66662 66662 210123 547.1MB/s sum [ +1.2%]
- BM_UFlat/15 7368 7368 1881856 547.1MB/s man [ +4.0%]
- BM_UFlat/16 110727 110726 100000 1021.4MB/s pb [ +2.3%]
- BM_UFlat/17 382138 382141 36616 460.0MB/s gaviota [ -0.7%]
-
-Westmere (Core i7):
-
- Benchmark Time(ns) CPU(ns) Iterations
- --------------------------------------------
- BM_UFlat/0 78861 78853 177703 1.2GB/s html [ +2.1%]
- BM_UFlat/1 739560 739491 18912 905.4MB/s urls [ +3.4%]
- BM_UFlat/2 9867 9866 1419014 12.0GB/s jpg [ +3.4%]
- BM_UFlat/3 31989 31986 438385 2.7GB/s pdf [ +0.2%]
- BM_UFlat/4 319406 319380 43771 1.2GB/s html4 [ +1.9%]
- BM_UFlat/5 29639 29636 472862 791.7MB/s cp [ +5.2%]
- BM_UFlat/6 13478 13477 1000000 789.0MB/s c [ +2.3%]
- BM_UFlat/7 4030 4029 3475364 880.7MB/s lsp [ +8.7%]
- BM_UFlat/8 1036585 1036492 10000 947.5MB/s xls [ +6.9%]
- BM_UFlat/9 242127 242105 57838 599.1MB/s txt1 [ +3.0%]
- BM_UFlat/10 206499 206480 67595 578.2MB/s txt2 [ +3.4%]
- BM_UFlat/11 641635 641570 21811 634.4MB/s txt3 [ +2.4%]
- BM_UFlat/12 848847 848769 16443 541.4MB/s txt4 [ +3.1%]
- BM_UFlat/13 384968 384938 36366 1.2GB/s bin [ +0.3%]
- BM_UFlat/14 47106 47101 297770 774.3MB/s sum [ +4.4%]
- BM_UFlat/15 5063 5063 2772202 796.2MB/s man [ +7.7%]
- BM_UFlat/16 83663 83656 167697 1.3GB/s pb [ +1.8%]
- BM_UFlat/17 260224 260198 53823 675.6MB/s gaviota [ -0.5%]
-
-Barcelona (Opteron):
-
- Benchmark Time(ns) CPU(ns) Iterations
- --------------------------------------------
- BM_UFlat/0 112490 112457 100000 868.4MB/s html [ -0.4%]
- BM_UFlat/1 1066719 1066339 10000 627.9MB/s urls [ +1.0%]
- BM_UFlat/2 24679 24672 563802 4.8GB/s jpg [ +0.7%]
- BM_UFlat/3 50603 50589 277285 1.7GB/s pdf [ +2.6%]
- BM_UFlat/4 452982 452849 30900 862.6MB/s html4 [ -0.2%]
- BM_UFlat/5 43860 43848 319554 535.1MB/s cp [ +1.2%]
- BM_UFlat/6 21419 21413 653573 496.6MB/s c [ +1.0%]
- BM_UFlat/7 6646 6645 2105405 534.1MB/s lsp [ +0.3%]
- BM_UFlat/8 1828487 1827886 7658 537.3MB/s xls [ +2.6%]
- BM_UFlat/9 391824 391714 35708 370.3MB/s txt1 [ +2.2%]
- BM_UFlat/10 334913 334816 41885 356.6MB/s txt2 [ +1.7%]
- BM_UFlat/11 1042062 1041674 10000 390.7MB/s txt3 [ +1.1%]
- BM_UFlat/12 1398902 1398456 10000 328.6MB/s txt4 [ +1.7%]
- BM_UFlat/13 545706 545530 25669 897.2MB/s bin [ -0.4%]
- BM_UFlat/14 71512 71505 196035 510.0MB/s sum [ +1.4%]
- BM_UFlat/15 8422 8421 1665036 478.7MB/s man [ +2.6%]
- BM_UFlat/16 112053 112048 100000 1009.3MB/s pb [ -0.4%]
- BM_UFlat/17 416723 416713 33612 421.8MB/s gaviota [ -2.0%]
-
-R=sanjay
-
-------------------------------------------------------------------------
-r52 | snappy.mirrorbot@gmail.com | 2011-11-08 15:46:39 +0100 (Tue, 08 Nov 2011) | 5 lines
-
-Fix public issue #53: Update the README to the API we actually open-sourced
-with.
-
-R=sanjay
-
-------------------------------------------------------------------------
-r51 | snappy.mirrorbot@gmail.com | 2011-10-05 14:27:12 +0200 (Wed, 05 Oct 2011) | 5 lines
-
-In the format description, use a clearer example to emphasize that varints are
-stored in little-endian. Patch from Christian von Roques.
-
-R=csilvers
-
-------------------------------------------------------------------------
-r50 | snappy.mirrorbot@gmail.com | 2011-09-15 21:34:06 +0200 (Thu, 15 Sep 2011) | 4 lines
-
-Release Snappy 1.0.4.
-
-R=sanjay
-
-------------------------------------------------------------------------
-r49 | snappy.mirrorbot@gmail.com | 2011-09-15 11:50:05 +0200 (Thu, 15 Sep 2011) | 5 lines
-
-Fix public issue #50: Include generic byteswap macros.
-Also include Solaris 10 and FreeBSD versions.
-
-R=csilvers
-
-------------------------------------------------------------------------
-r48 | snappy.mirrorbot@gmail.com | 2011-08-10 20:57:27 +0200 (Wed, 10 Aug 2011) | 5 lines
-
-Partially fix public issue 50: Remove an extra comma from the end of some
-enum declarations, as it seems the Sun compiler does not like it.
-
-Based on patch by Travis Vitek.
-
-------------------------------------------------------------------------
-r47 | snappy.mirrorbot@gmail.com | 2011-08-10 20:44:16 +0200 (Wed, 10 Aug 2011) | 4 lines
-
-Use the right #ifdef test for sys/mman.h.
-
-Based on patch by Travis Vitek.
-
-------------------------------------------------------------------------
-r46 | snappy.mirrorbot@gmail.com | 2011-08-10 03:22:09 +0200 (Wed, 10 Aug 2011) | 6 lines
-
-Fix public issue #47: Small comment cleanups in the unit test.
-
-Originally based on a patch by Patrick Pelletier.
-
-R=sanjay
-
-------------------------------------------------------------------------
-r45 | snappy.mirrorbot@gmail.com | 2011-08-10 03:14:43 +0200 (Wed, 10 Aug 2011) | 8 lines
-
-Fix public issue #46: Format description said "3-byte offset"
-instead of "4-byte offset" for the longest copies.
-
-Also fix an inconsistency in the heading for section 2.2.3.
-Both patches by Patrick Pelletier.
-
-R=csilvers
-
-------------------------------------------------------------------------
-r44 | snappy.mirrorbot@gmail.com | 2011-06-28 13:40:25 +0200 (Tue, 28 Jun 2011) | 8 lines
-
-Fix public issue #44: Make the definition and declaration of CompressFragment
-identical, even regarding cv-qualifiers.
-
-This is required to work around a bug in the Solaris Studio C++ compiler
-(it does not properly disregard cv-qualifiers when doing name mangling).
-
-R=sanjay
-
-------------------------------------------------------------------------
-r43 | snappy.mirrorbot@gmail.com | 2011-06-04 12:19:05 +0200 (Sat, 04 Jun 2011) | 7 lines
-
-Correct an inaccuracy in the Snappy format description.
-(I stumbled into this when changing the way we decompress literals.)
-
-R=csilvers
-
-Revision created by MOE tool push_codebase.
-
-------------------------------------------------------------------------
-r42 | snappy.mirrorbot@gmail.com | 2011-06-03 22:53:06 +0200 (Fri, 03 Jun 2011) | 50 lines
-
-Speed up decompression by removing a fast-path attempt.
-
-Whenever we try to enter a copy fast-path, there is a certain cost in checking
-that all the preconditions are in place, but it's normally offset by the fact
-that we can usually take the cheaper path. However, in a certain path we've
-already established that "avail < literal_length", which usually means that
-either the available space is small, or the literal is big. Both will disqualify
-us from taking the fast path, and thus we take the hit from the precondition
-checking without gaining much from having a fast path. Thus, simply don't try
-the fast path in this situation -- we're already on a slow path anyway
-(one where we need to refill more data from the reader).
-
-I'm a bit surprised at how much this gained; it could be that this path is
-more common than I thought, or that the simpler structure somehow makes the
-compiler happier. I haven't looked at the assembler, but it's a win across
-the board on both Core 2, Core i7 and Opteron, at least for the cases we
-typically care about. The gains seem to be the largest on Core i7, though.
-Results from my Core i7 workstation:
-
-
- Benchmark Time(ns) CPU(ns) Iterations
- ---------------------------------------------------
- BM_UFlat/0 73337 73091 190996 1.3GB/s html [ +1.7%]
- BM_UFlat/1 696379 693501 20173 965.5MB/s urls [ +2.7%]
- BM_UFlat/2 9765 9734 1472135 12.1GB/s jpg [ +0.7%]
- BM_UFlat/3 29720 29621 472973 3.0GB/s pdf [ +1.8%]
- BM_UFlat/4 294636 293834 47782 1.3GB/s html4 [ +2.3%]
- BM_UFlat/5 28399 28320 494700 828.5MB/s cp [ +3.5%]
- BM_UFlat/6 12795 12760 1000000 833.3MB/s c [ +1.2%]
- BM_UFlat/7 3984 3973 3526448 893.2MB/s lsp [ +5.7%]
- BM_UFlat/8 991996 989322 14141 992.6MB/s xls [ +3.3%]
- BM_UFlat/9 228620 227835 61404 636.6MB/s txt1 [ +4.0%]
- BM_UFlat/10 197114 196494 72165 607.5MB/s txt2 [ +3.5%]
- BM_UFlat/11 605240 603437 23217 674.4MB/s txt3 [ +3.7%]
- BM_UFlat/12 804157 802016 17456 573.0MB/s txt4 [ +3.9%]
- BM_UFlat/13 347860 346998 40346 1.4GB/s bin [ +1.2%]
- BM_UFlat/14 44684 44559 315315 818.4MB/s sum [ +2.3%]
- BM_UFlat/15 5120 5106 2739726 789.4MB/s man [ +3.3%]
- BM_UFlat/16 76591 76355 183486 1.4GB/s pb [ +2.8%]
- BM_UFlat/17 238564 237828 58824 739.1MB/s gaviota [ +1.6%]
- BM_UValidate/0 42194 42060 333333 2.3GB/s html [ -0.1%]
- BM_UValidate/1 433182 432005 32407 1.5GB/s urls [ -0.1%]
- BM_UValidate/2 197 196 71428571 603.3GB/s jpg [ +0.5%]
- BM_UValidate/3 14494 14462 972222 6.1GB/s pdf [ +0.5%]
- BM_UValidate/4 168444 167836 83832 2.3GB/s html4 [ +0.1%]
-
-R=jeff
-
-Revision created by MOE tool push_codebase.
-
-------------------------------------------------------------------------
-r41 | snappy.mirrorbot@gmail.com | 2011-06-03 22:47:14 +0200 (Fri, 03 Jun 2011) | 43 lines
-
-Speed up decompression by not needing a lookup table for literal items.
-
-Looking up into and decoding the values from char_table has long shown up as a
-hotspot in the decompressor. While it turns out that it's hard to make a more
-efficient decoder for the copy ops, the literals are simple enough that we can
-decode them without needing a table lookup. (This means that 1/4 of the table
-is now unused, although that in itself doesn't buy us anything.)
-
-The gains are small, but definitely present; some tests win as much as 10%,
-but 1-4% is more typical. These results are from Core i7, in 64-bit mode;
-Core 2 and Opteron show similar results. (I've run with more iterations
-than unusual to make sure the smaller gains don't drown entirely in noise.)
-
- Benchmark Time(ns) CPU(ns) Iterations
- ---------------------------------------------------
- BM_UFlat/0 74665 74428 182055 1.3GB/s html [ +3.1%]
- BM_UFlat/1 714106 711997 19663 940.4MB/s urls [ +4.4%]
- BM_UFlat/2 9820 9789 1427115 12.1GB/s jpg [ -1.2%]
- BM_UFlat/3 30461 30380 465116 2.9GB/s pdf [ +0.8%]
- BM_UFlat/4 301445 300568 46512 1.3GB/s html4 [ +2.2%]
- BM_UFlat/5 29338 29263 479452 801.8MB/s cp [ +1.6%]
- BM_UFlat/6 13004 12970 1000000 819.9MB/s c [ +2.1%]
- BM_UFlat/7 4180 4168 3349282 851.4MB/s lsp [ +1.3%]
- BM_UFlat/8 1026149 1024000 10000 959.0MB/s xls [+10.7%]
- BM_UFlat/9 237441 236830 59072 612.4MB/s txt1 [ +0.3%]
- BM_UFlat/10 203966 203298 69307 587.2MB/s txt2 [ +0.8%]
- BM_UFlat/11 627230 625000 22400 651.2MB/s txt3 [ +0.7%]
- BM_UFlat/12 836188 833979 16787 551.0MB/s txt4 [ +1.3%]
- BM_UFlat/13 351904 350750 39886 1.4GB/s bin [ +3.8%]
- BM_UFlat/14 45685 45562 308370 800.4MB/s sum [ +5.9%]
- BM_UFlat/15 5286 5270 2656546 764.9MB/s man [ +1.5%]
- BM_UFlat/16 78774 78544 178117 1.4GB/s pb [ +4.3%]
- BM_UFlat/17 242270 241345 58091 728.3MB/s gaviota [ +1.2%]
- BM_UValidate/0 42149 42000 333333 2.3GB/s html [ -3.0%]
- BM_UValidate/1 432741 431303 32483 1.5GB/s urls [ +7.8%]
- BM_UValidate/2 198 197 71428571 600.7GB/s jpg [+16.8%]
- BM_UValidate/3 14560 14521 965517 6.1GB/s pdf [ -4.1%]
- BM_UValidate/4 169065 168671 83832 2.3GB/s html4 [ -2.9%]
-
-R=jeff
-
-Revision created by MOE tool push_codebase.
-
-------------------------------------------------------------------------
-r40 | snappy.mirrorbot@gmail.com | 2011-06-03 00:57:41 +0200 (Fri, 03 Jun 2011) | 2 lines
-
-Release Snappy 1.0.3.
-
-------------------------------------------------------------------------
-r39 | snappy.mirrorbot@gmail.com | 2011-06-02 20:06:54 +0200 (Thu, 02 Jun 2011) | 11 lines
-
-Remove an unneeded goto in the decompressor; it turns out that the
-state of ip_ after decompression (or attempted decompresion) is
-completely irrelevant, so we don't need the trailer.
-
-Performance is, as expected, mostly flat -- there's a curious ~3-5%
-loss in the "lsp" test, but that test case is so short it is hard to say
-anything definitive about why (most likely, it's some sort of
-unrelated effect).
-
-R=jeff
-
-------------------------------------------------------------------------
-r38 | snappy.mirrorbot@gmail.com | 2011-06-02 19:59:40 +0200 (Thu, 02 Jun 2011) | 52 lines
-
-Speed up decompression by caching ip_.
-
-It is seemingly hard for the compiler to understand that ip_, the current input
-pointer into the compressed data stream, can not alias on anything else, and
-thus using it directly will incur memory traffic as it cannot be kept in a
-register. The code already knew about this and cached it into a local
-variable, but since Step() only decoded one tag, it had to move ip_ back into
-place between every tag. This seems to have cost us a significant amount of
-performance, so changing Step() into a function that decodes as much as it can
-before it saves ip_ back and returns. (Note that Step() was already inlined,
-so it is not the manual inlining that buys the performance here.)
-
-The wins are about 3-6% for Core 2, 6-13% on Core i7 and 5-12% on Opteron
-(for plain array-to-array decompression, in 64-bit opt mode).
-
-There is a tiny difference in the behavior here; if an invalid literal is
-encountered (ie., the writer refuses the Append() operation), ip_ will now
-point to the byte past the tag byte, instead of where the literal was
-originally thought to end. However, we don't use ip_ for anything after
-DecompressAllTags() has returned, so this should not change external behavior
-in any way.
-
-Microbenchmark results for Core i7, 64-bit (Opteron results are similar):
-
-Benchmark Time(ns) CPU(ns) Iterations
----------------------------------------------------
-BM_UFlat/0 79134 79110 8835 1.2GB/s html [ +6.2%]
-BM_UFlat/1 786126 786096 891 851.8MB/s urls [+10.0%]
-BM_UFlat/2 9948 9948 69125 11.9GB/s jpg [ -1.3%]
-BM_UFlat/3 31999 31998 21898 2.7GB/s pdf [ +6.5%]
-BM_UFlat/4 318909 318829 2204 1.2GB/s html4 [ +6.5%]
-BM_UFlat/5 31384 31390 22363 747.5MB/s cp [ +9.2%]
-BM_UFlat/6 14037 14034 49858 757.7MB/s c [+10.6%]
-BM_UFlat/7 4612 4612 151395 769.5MB/s lsp [ +9.5%]
-BM_UFlat/8 1203174 1203007 582 816.3MB/s xls [+19.3%]
-BM_UFlat/9 253869 253955 2757 571.1MB/s txt1 [+11.4%]
-BM_UFlat/10 219292 219290 3194 544.4MB/s txt2 [+12.1%]
-BM_UFlat/11 672135 672131 1000 605.5MB/s txt3 [+11.2%]
-BM_UFlat/12 902512 902492 776 509.2MB/s txt4 [+12.5%]
-BM_UFlat/13 372110 371998 1881 1.3GB/s bin [ +5.8%]
-BM_UFlat/14 50407 50407 10000 723.5MB/s sum [+13.5%]
-BM_UFlat/15 5699 5701 100000 707.2MB/s man [+12.4%]
-BM_UFlat/16 83448 83424 8383 1.3GB/s pb [ +5.7%]
-BM_UFlat/17 256958 256963 2723 684.1MB/s gaviota [ +7.9%]
-BM_UValidate/0 42795 42796 16351 2.2GB/s html [+25.8%]
-BM_UValidate/1 490672 490622 1427 1.3GB/s urls [+22.7%]
-BM_UValidate/2 237 237 2950297 499.0GB/s jpg [+24.9%]
-BM_UValidate/3 14610 14611 47901 6.0GB/s pdf [+26.8%]
-BM_UValidate/4 171973 171990 4071 2.2GB/s html4 [+25.7%]
-
-
-
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-r37 | snappy.mirrorbot@gmail.com | 2011-05-17 10:48:25 +0200 (Tue, 17 May 2011) | 10 lines
-
-
-Fix the numbering of the headlines in the Snappy format description.
-
-R=csilvers
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-r36 | snappy.mirrorbot@gmail.com | 2011-05-16 10:59:18 +0200 (Mon, 16 May 2011) | 12 lines
-
-
-Fix public issue #32: Add compressed format documentation for Snappy.
-This text is new, but an earlier version from Zeev Tarantov was used
-as reference.
-
-R=csilvers
-DELTA=112 (111 added, 0 deleted, 1 changed)
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-r35 | snappy.mirrorbot@gmail.com | 2011-05-09 23:29:02 +0200 (Mon, 09 May 2011) | 12 lines
-
-
-Fix public issue #39: Pick out the median runs based on CPU time,
-not real time. Also, use nth_element instead of sort, since we
-only need one element.
-
-R=csilvers
-DELTA=5 (3 added, 0 deleted, 2 changed)
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-r34 | snappy.mirrorbot@gmail.com | 2011-05-09 23:28:45 +0200 (Mon, 09 May 2011) | 19 lines
-
-
-Fix public issue #38: Make the microbenchmark framework handle
-properly cases where gettimeofday() can stand return the same
-result twice (as sometimes on GNU/Hurd) or go backwards
-(as when the user adjusts the clock). We avoid a division-by-zero,
-and put a lower bound on the number of iterations -- the same
-amount as we use to calibrate.
-
-We should probably use CLOCK_MONOTONIC for platforms that support
-it, to be robust against clock adjustments; we already use Windows'
-monotonic timers. However, that's for a later changelist.
-
-R=csilvers
-DELTA=7 (5 added, 0 deleted, 2 changed)
-
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-r33 | snappy.mirrorbot@gmail.com | 2011-05-04 01:22:52 +0200 (Wed, 04 May 2011) | 11 lines
-
-
-Fix public issue #37: Only link snappy_unittest against -lz and other autodetected
-libraries, not libsnappy.so (which doesn't need any such dependency).
-
-R=csilvers
-DELTA=20 (14 added, 0 deleted, 6 changed)
-
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-r32 | snappy.mirrorbot@gmail.com | 2011-05-04 01:22:33 +0200 (Wed, 04 May 2011) | 11 lines
-
-
-Release Snappy 1.0.2, to get the license change and various other fixes into
-a release.
-
-R=csilvers
-DELTA=239 (236 added, 0 deleted, 3 changed)
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-r31 | snappy.mirrorbot@gmail.com | 2011-04-26 14:34:55 +0200 (Tue, 26 Apr 2011) | 15 lines
-
-
-Fix public issue #30: Stop using gettimeofday() altogether on Win32,
-as MSVC doesn't include it. Replace with QueryPerformanceCounter(),
-which is monotonic and probably reasonably high-resolution.
-(Some machines have traditionally had bugs in QPC, but they should
-be relatively rare these days, and there's really no much better
-alternative that I know of.)
-
-R=csilvers
-DELTA=74 (55 added, 19 deleted, 0 changed)
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-r30 | snappy.mirrorbot@gmail.com | 2011-04-26 14:34:37 +0200 (Tue, 26 Apr 2011) | 11 lines
-
-
-Fix public issue #31: Don't reset PATH in autogen.sh; instead, do the trickery
-we need for our own build system internally.
-
-R=csilvers
-DELTA=16 (13 added, 1 deleted, 2 changed)
-
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-r29 | snappy.mirrorbot@gmail.com | 2011-04-16 00:55:56 +0200 (Sat, 16 Apr 2011) | 12 lines
-
-
-When including <windows.h>, define WIN32_LEAN_AND_MEAN first,
-so we won't pull in macro definitions of things like min() and max(),
-which can conflict with <algorithm>.
-
-R=csilvers
-DELTA=1 (1 added, 0 deleted, 0 changed)
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-r28 | snappy.mirrorbot@gmail.com | 2011-04-11 11:07:01 +0200 (Mon, 11 Apr 2011) | 15 lines
-
-
-Fix public issue #29: Write CPU timing code for Windows, based on GetProcessTimes()
-instead of getursage().
-
-I thought I'd already committed this patch, so that the 1.0.1 release already
-would have a Windows-compatible snappy_unittest, but I'd seemingly deleted it
-instead, so this is a reconstruction.
-
-R=csilvers
-DELTA=43 (39 added, 3 deleted, 1 changed)
-
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-r27 | snappy.mirrorbot@gmail.com | 2011-04-08 11:51:53 +0200 (Fri, 08 Apr 2011) | 22 lines
-
-
-Include C bindings of Snappy, contributed by Martin Gieseking.
-
-I've made a few changes since Martin's version; mostly style nits, but also
-a semantic change -- most functions that return bool in the C++ version now
-return an enum, to better match typical C (and zlib) semantics.
-
-I've kept the copyright notice, since Martin is obviously the author here;
-he has signed the contributor license agreement, though, so this should not
-hinder Google's use in the future.
-
-We'll need to update the libtool version number to match the added interface,
-but as of http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-I'm going to wait until public release.
-
-R=csilvers
-DELTA=238 (233 added, 0 deleted, 5 changed)
-
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-r26 | snappy.mirrorbot@gmail.com | 2011-04-07 18:36:43 +0200 (Thu, 07 Apr 2011) | 13 lines
-
-
-Replace geo.protodata with a newer version.
-
-The data compresses/decompresses slightly faster than the old data, and has
-similar density.
-
-R=lookingbill
-DELTA=1 (0 added, 0 deleted, 1 changed)
-
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-r25 | snappy.mirrorbot@gmail.com | 2011-03-30 22:27:53 +0200 (Wed, 30 Mar 2011) | 12 lines
-
-
-Fix public issue #27: Add HAVE_CONFIG_H tests around the config.h
-inclusion in snappy-stubs-internal.h, which eases compiling outside the
-automake/autoconf framework.
-
-R=csilvers
-DELTA=5 (4 added, 1 deleted, 0 changed)
-
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-r24 | snappy.mirrorbot@gmail.com | 2011-03-30 22:27:39 +0200 (Wed, 30 Mar 2011) | 13 lines
-
-
-Fix public issue #26: Take memory allocation and reallocation entirely out of the
-Measure() loop. This gives all algorithms a small speed boost, except Snappy which
-already didn't do reallocation (so the measurements were slightly biased in its
-favor).
-
-R=csilvers
-DELTA=92 (69 added, 9 deleted, 14 changed)
-
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-r23 | snappy.mirrorbot@gmail.com | 2011-03-30 22:25:09 +0200 (Wed, 30 Mar 2011) | 18 lines
-
-
-Renamed "namespace zippy" to "namespace snappy" to reduce
-the differences from the opensource code. Will make it easier
-in the future to mix-and-match third-party code that uses
-snappy with google code.
-
-Currently, csearch shows that the only external user of
-"namespace zippy" is some bigtable code that accesses
-a TEST variable, which is temporarily kept in the zippy
-namespace.
-
-R=sesse
-DELTA=123 (18 added, 3 deleted, 102 changed)
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-r22 | snappy.mirrorbot@gmail.com | 2011-03-29 00:17:04 +0200 (Tue, 29 Mar 2011) | 11 lines
-
-
-Put back the final few lines of what was truncated during the
-license header change.
-
-R=csilvers
-DELTA=5 (4 added, 0 deleted, 1 changed)
-
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-r21 | snappy.mirrorbot@gmail.com | 2011-03-26 03:34:34 +0100 (Sat, 26 Mar 2011) | 20 lines
-
-
-Change on 2011-03-25 19:18:00-07:00 by sesse
-
- Replace the Apache 2.0 license header by the BSD-type license header;
- somehow a lot of the files were missed in the last round.
-
- R=dannyb,csilvers
- DELTA=147 (74 added, 2 deleted, 71 changed)
-
-Change on 2011-03-25 19:25:07-07:00 by sesse
-
- Unbreak the build; the relicensing removed a bit too much (only comments
- were intended, but I also accidentially removed some of the top lines of
- the actual source).
-
-
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-r20 | snappy.mirrorbot@gmail.com | 2011-03-25 17:14:41 +0100 (Fri, 25 Mar 2011) | 10 lines
-
-
-Change Snappy from the Apache 2.0 to a BSD-type license.
-
-R=dannyb
-DELTA=328 (80 added, 184 deleted, 64 changed)
-
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-r19 | snappy.mirrorbot@gmail.com | 2011-03-25 01:39:01 +0100 (Fri, 25 Mar 2011) | 11 lines
-
-
-Release Snappy 1.0.1, to soup up all the various small changes
-that have been made since release.
-
-R=csilvers
-DELTA=266 (260 added, 0 deleted, 6 changed)
-
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-r18 | snappy.mirrorbot@gmail.com | 2011-03-24 20:15:54 +0100 (Thu, 24 Mar 2011) | 11 lines
-
-
-Fix a microbenchmark crash on mingw32; seemingly %lld is not universally
-supported on Windows, and %I64d is recommended instead.
-
-R=csilvers
-DELTA=6 (5 added, 0 deleted, 1 changed)
-
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-r17 | snappy.mirrorbot@gmail.com | 2011-03-24 20:15:27 +0100 (Thu, 24 Mar 2011) | 13 lines
-
-
-Fix public issue #19: Fix unit test when Google Test is installed but the
-gflags package isn't (Google Test is not properly initialized).
-
-Patch by Martin Gieseking.
-
-R=csilvers
-DELTA=2 (1 added, 0 deleted, 1 changed)
-
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-r16 | snappy.mirrorbot@gmail.com | 2011-03-24 20:13:57 +0100 (Thu, 24 Mar 2011) | 15 lines
-
-
-Make the unit test work on systems without mmap(). This is required for,
-among others, Windows support. For Windows in specific, we could have used
-CreateFileMapping/MapViewOfFile, but this should at least get us a bit closer
-to compiling, and is of course also relevant for embedded systems with no MMU.
-
-(Part 2/2)
-
-R=csilvers
-DELTA=15 (12 added, 3 deleted, 0 changed)
-
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-r15 | snappy.mirrorbot@gmail.com | 2011-03-24 20:12:27 +0100 (Thu, 24 Mar 2011) | 15 lines
-
-
-Make the unit test work on systems without mmap(). This is required for,
-among others, Windows support. For Windows in specific, we could have used
-CreateFileMapping/MapViewOfFile, but this should at least get us a bit closer
-to compiling, and is of course also relevant for embedded systems with no MMU.
-
-(Part 1/2)
-
-R=csilvers
-DELTA=9 (8 added, 0 deleted, 1 changed)
-
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-r14 | snappy.mirrorbot@gmail.com | 2011-03-24 00:17:36 +0100 (Thu, 24 Mar 2011) | 14 lines
-
-
-Fix public issue #12: Don't keep autogenerated auto* files in Subversion;
-it causes problems with others sending patches etc..
-
-We can't get this 100% hermetic anyhow, due to files like lt~obsolete.m4,
-so we can just as well go cleanly in the other direction.
-
-R=csilvers
-DELTA=21038 (0 added, 21036 deleted, 2 changed)
-
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-r13 | snappy.mirrorbot@gmail.com | 2011-03-23 18:50:49 +0100 (Wed, 23 Mar 2011) | 11 lines
-
-
-Fix public issue tracker bug #3: Call AC_SUBST([LIBTOOL_DEPS]), or the rule
-to rebuild libtool in Makefile.am won't work.
-
-R=csilvers
-DELTA=1 (1 added, 0 deleted, 0 changed)
-
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-r12 | snappy.mirrorbot@gmail.com | 2011-03-23 12:16:39 +0100 (Wed, 23 Mar 2011) | 11 lines
-
-
-Fix public issue #10: Don't add GTEST_CPPFLAGS to snappy_unittest_CXXFLAGS;
-it's not needed (CPPFLAGS are always included when compiling).
-
-R=csilvers
-DELTA=1 (0 added, 1 deleted, 0 changed)
-
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-r11 | snappy.mirrorbot@gmail.com | 2011-03-23 12:16:18 +0100 (Wed, 23 Mar 2011) | 11 lines
-
-
-Fix public issue #9: Add -Wall -Werror to automake flags.
-(This concerns automake itself, not the C++ compiler.)
-
-R=csilvers
-DELTA=4 (3 added, 0 deleted, 1 changed)
-
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-r10 | snappy.mirrorbot@gmail.com | 2011-03-23 12:13:37 +0100 (Wed, 23 Mar 2011) | 10 lines
-
-
-Fix a typo in the Snappy README file.
-
-R=csilvers
-DELTA=1 (0 added, 0 deleted, 1 changed)
-
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-r9 | snappy.mirrorbot@gmail.com | 2011-03-23 12:13:13 +0100 (Wed, 23 Mar 2011) | 11 lines
-
-
-Fix public issue #6: Add a --with-gflags for disabling gflags autodetection
-and using a manually given setting (use/don't use) instead.
-
-R=csilvers
-DELTA=16 (13 added, 0 deleted, 3 changed)
-
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-r8 | snappy.mirrorbot@gmail.com | 2011-03-23 12:12:44 +0100 (Wed, 23 Mar 2011) | 12 lines
-
-
-Fix public issue #5: Replace the EXTRA_LIBSNAPPY_LDFLAGS setup with something
-slightly more standard, that also doesn't leak libtool command-line into
-configure.ac.
-
-R=csilvers
-DELTA=7 (0 added, 4 deleted, 3 changed)
-
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-r7 | snappy.mirrorbot@gmail.com | 2011-03-23 12:12:22 +0100 (Wed, 23 Mar 2011) | 10 lines
-
-
-Fix public issue #4: Properly quote all macro arguments in configure.ac.
-
-R=csilvers
-DELTA=16 (0 added, 0 deleted, 16 changed)
-
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-r6 | snappy.mirrorbot@gmail.com | 2011-03-23 12:11:54 +0100 (Wed, 23 Mar 2011) | 11 lines
-
-
-Fix public issue #7: Don't use internal variables named ac_*, as those belong
-to autoconf's namespace.
-
-R=csilvers
-DELTA=6 (0 added, 0 deleted, 6 changed)
-
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-r5 | snappy.mirrorbot@gmail.com | 2011-03-23 12:11:09 +0100 (Wed, 23 Mar 2011) | 10 lines
-
-
-Add missing licensing headers to a few files. (Part 2/2.)
-
-R=csilvers
-DELTA=12 (12 added, 0 deleted, 0 changed)
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-r4 | snappy.mirrorbot@gmail.com | 2011-03-23 12:10:39 +0100 (Wed, 23 Mar 2011) | 10 lines
-
-
-Add mising licensing headers to a few files. (Part 1/2.)
-
-R=csilvers
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-
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-r3 | snappy.mirrorbot@gmail.com | 2011-03-23 12:10:04 +0100 (Wed, 23 Mar 2011) | 11 lines
-
-
-Use the correct license file for the Apache 2.0 license;
-spotted by Florian Weimer.
-
-R=csilvers
-DELTA=202 (174 added, 0 deleted, 28 changed)
-
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-r1 | sesse@google.com | 2011-03-18 18:13:52 +0100 (Fri, 18 Mar 2011) | 2 lines
-
-Create trunk directory.
-
-------------------------------------------------------------------------
+++ /dev/null
-Installation Instructions
-*************************
-
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-
- Copying and distribution of this file, with or without modification,
-are permitted in any medium without royalty provided the copyright
-notice and this notice are preserved. This file is offered as-is,
-without warranty of any kind.
-
-Basic Installation
-==================
-
- Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package. The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package. Some packages provide this
-`INSTALL' file but do not implement all of the features documented
-below. The lack of an optional feature in a given package is not
-necessarily a bug. More recommendations for GNU packages can be found
-in *note Makefile Conventions: (standards)Makefile Conventions.
-
- The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation. It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions. Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
- It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring. Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
- If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release. If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
- The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'. You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
- The simplest way to compile this package is:
-
- 1. `cd' to the directory containing the package's source code and type
- `./configure' to configure the package for your system.
-
- Running `configure' might take a while. While running, it prints
- some messages telling which features it is checking for.
-
- 2. Type `make' to compile the package.
-
- 3. Optionally, type `make check' to run any self-tests that come with
- the package, generally using the just-built uninstalled binaries.
-
- 4. Type `make install' to install the programs and any data files and
- documentation. When installing into a prefix owned by root, it is
- recommended that the package be configured and built as a regular
- user, and only the `make install' phase executed with root
- privileges.
-
- 5. Optionally, type `make installcheck' to repeat any self-tests, but
- this time using the binaries in their final installed location.
- This target does not install anything. Running this target as a
- regular user, particularly if the prior `make install' required
- root privileges, verifies that the installation completed
- correctly.
-
- 6. You can remove the program binaries and object files from the
- source code directory by typing `make clean'. To also remove the
- files that `configure' created (so you can compile the package for
- a different kind of computer), type `make distclean'. There is
- also a `make maintainer-clean' target, but that is intended mainly
- for the package's developers. If you use it, you may have to get
- all sorts of other programs in order to regenerate files that came
- with the distribution.
-
- 7. Often, you can also type `make uninstall' to remove the installed
- files again. In practice, not all packages have tested that
- uninstallation works correctly, even though it is required by the
- GNU Coding Standards.
-
- 8. Some packages, particularly those that use Automake, provide `make
- distcheck', which can by used by developers to test that all other
- targets like `make install' and `make uninstall' work correctly.
- This target is generally not run by end users.
-
-Compilers and Options
-=====================
-
- Some systems require unusual options for compilation or linking that
-the `configure' script does not know about. Run `./configure --help'
-for details on some of the pertinent environment variables.
-
- You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment. Here
-is an example:
-
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+++ /dev/null
-Snappy v1.0.5, February 24th 2012:
-
- * More speed improvements. Exactly how big will depend on
- the architecture:
-
- - 3–10% faster decompression for the base case (x86-64).
-
- - ARMv7 and higher can now use unaligned accesses,
- and will see about 30% faster decompression and
- 20–40% faster compression.
-
- - 32-bit platforms (ARM and 32-bit x86) will see 2–5%
- faster compression.
-
- These are all cumulative (e.g., ARM gets all three speedups).
-
- * Fixed an issue where the unit test would crash on system
- with less than 256 MB address space available,
- e.g. some embedded platforms.
-
- * Added a framing format description, for use over e.g. HTTP,
- or for a command-line compressor. We do not have any
- implementations of this at the current point, but there seems
- to be enough of a general interest in the topic.
- Also make the format description slightly clearer.
-
- * Remove some compile-time warnings in -Wall
- (mostly signed/unsigned comparisons), for easier embedding
- into projects that use -Wall -Werror.
-
-
-Snappy v1.0.4, September 15th 2011:
-
- * Speeded up the decompressor somewhat; typically about 2–8%
- for Core i7, in 64-bit mode (comparable for Opteron).
- Somewhat more for some tests, almost no gain for others.
-
- * Make Snappy compile on certain platforms it didn't before
- (Solaris with SunPro C++, HP-UX, AIX).
-
- * Correct some minor errors in the format description.
-
-
-Snappy v1.0.3, June 2nd 2011:
-
- * Speeded up the decompressor somewhat; about 3-6% for Core 2,
- 6-13% for Core i7, and 5-12% for Opteron (all in 64-bit mode).
-
- * Added compressed format documentation. This text is new,
- but an earlier version from Zeev Tarantov was used as reference.
-
- * Only link snappy_unittest against -lz and other autodetected
- libraries, not libsnappy.so (which doesn't need any such dependency).
-
- * Fixed some display issues in the microbenchmarks, one of which would
- frequently make the test crash on GNU/Hurd.
-
-
-Snappy v1.0.2, April 29th 2011:
-
- * Relicense to a BSD-type license.
-
- * Added C bindings, contributed by Martin Gieseking.
-
- * More Win32 fixes, in particular for MSVC.
-
- * Replace geo.protodata with a newer version.
-
- * Fix timing inaccuracies in the unit test when comparing Snappy
- to other algorithms.
-
-
-Snappy v1.0.1, March 25th 2011:
-
-This is a maintenance release, mostly containing minor fixes.
-There is no new functionality. The most important fixes include:
-
- * The COPYING file and all licensing headers now correctly state that
- Snappy is licensed under the Apache 2.0 license.
-
- * snappy_unittest should now compile natively under Windows,
- as well as on embedded systems with no mmap().
-
- * Various autotools nits have been fixed.
-
-
-Snappy v1.0, March 17th 2011:
-
- * Initial version.
+++ /dev/null
-Snappy, a fast compressor/decompressor.
-
-
-Introduction
-============
-
-Snappy is a compression/decompression library. It does not aim for maximum
-compression, or compatibility with any other compression library; instead,
-it aims for very high speeds and reasonable compression. For instance,
-compared to the fastest mode of zlib, Snappy is an order of magnitude faster
-for most inputs, but the resulting compressed files are anywhere from 20% to
-100% bigger. (For more information, see "Performance", below.)
-
-Snappy has the following properties:
-
- * Fast: Compression speeds at 250 MB/sec and beyond, with no assembler code.
- See "Performance" below.
- * Stable: Over the last few years, Snappy has compressed and decompressed
- petabytes of data in Google's production environment. The Snappy bitstream
- format is stable and will not change between versions.
- * Robust: The Snappy decompressor is designed not to crash in the face of
- corrupted or malicious input.
- * Free and open source software: Snappy is licensed under a BSD-type license.
- For more information, see the included COPYING file.
-
-Snappy has previously been called "Zippy" in some Google presentations
-and the like.
-
-
-Performance
-===========
-
-Snappy is intended to be fast. On a single core of a Core i7 processor
-in 64-bit mode, it compresses at about 250 MB/sec or more and decompresses at
-about 500 MB/sec or more. (These numbers are for the slowest inputs in our
-benchmark suite; others are much faster.) In our tests, Snappy usually
-is faster than algorithms in the same class (e.g. LZO, LZF, FastLZ, QuickLZ,
-etc.) while achieving comparable compression ratios.
-
-Typical compression ratios (based on the benchmark suite) are about 1.5-1.7x
-for plain text, about 2-4x for HTML, and of course 1.0x for JPEGs, PNGs and
-other already-compressed data. Similar numbers for zlib in its fastest mode
-are 2.6-2.8x, 3-7x and 1.0x, respectively. More sophisticated algorithms are
-capable of achieving yet higher compression rates, although usually at the
-expense of speed. Of course, compression ratio will vary significantly with
-the input.
-
-Although Snappy should be fairly portable, it is primarily optimized
-for 64-bit x86-compatible processors, and may run slower in other environments.
-In particular:
-
- - Snappy uses 64-bit operations in several places to process more data at
- once than would otherwise be possible.
- - Snappy assumes unaligned 32- and 64-bit loads and stores are cheap.
- On some platforms, these must be emulated with single-byte loads
- and stores, which is much slower.
- - Snappy assumes little-endian throughout, and needs to byte-swap data in
- several places if running on a big-endian platform.
-
-Experience has shown that even heavily tuned code can be improved.
-Performance optimizations, whether for 64-bit x86 or other platforms,
-are of course most welcome; see "Contact", below.
-
-
-Usage
-=====
-
-Note that Snappy, both the implementation and the main interface,
-is written in C++. However, several third-party bindings to other languages
-are available; see the Google Code page at http://code.google.com/p/snappy/
-for more information. Also, if you want to use Snappy from C code, you can
-use the included C bindings in snappy-c.h.
-
-To use Snappy from your own C++ program, include the file "snappy.h" from
-your calling file, and link against the compiled library.
-
-There are many ways to call Snappy, but the simplest possible is
-
- snappy::Compress(input.data(), input.size(), &output);
-
-and similarly
-
- snappy::Uncompress(input.data(), input.size(), &output);
-
-where "input" and "output" are both instances of std::string.
-
-There are other interfaces that are more flexible in various ways, including
-support for custom (non-array) input sources. See the header file for more
-information.
-
-
-Tests and benchmarks
-====================
-
-When you compile Snappy, snappy_unittest is compiled in addition to the
-library itself. You do not need it to use the compressor from your own library,
-but it contains several useful components for Snappy development.
-
-First of all, it contains unit tests, verifying correctness on your machine in
-various scenarios. If you want to change or optimize Snappy, please run the
-tests to verify you have not broken anything. Note that if you have the
-Google Test library installed, unit test behavior (especially failures) will be
-significantly more user-friendly. You can find Google Test at
-
- http://code.google.com/p/googletest/
-
-You probably also want the gflags library for handling of command-line flags;
-you can find it at
-
- http://code.google.com/p/google-gflags/
-
-In addition to the unit tests, snappy contains microbenchmarks used to
-tune compression and decompression performance. These are automatically run
-before the unit tests, but you can disable them using the flag
---run_microbenchmarks=false if you have gflags installed (otherwise you will
-need to edit the source).
-
-Finally, snappy can benchmark Snappy against a few other compression libraries
-(zlib, LZO, LZF, FastLZ and QuickLZ), if they were detected at configure time.
-To benchmark using a given file, give the compression algorithm you want to test
-Snappy against (e.g. --zlib) and then a list of one or more file names on the
-command line. The testdata/ directory contains the files used by the
-microbenchmark, which should provide a reasonably balanced starting point for
-benchmarking. (Note that baddata[1-3].snappy are not intended as benchmarks; they
-are used to verify correctness in the presence of corrupted data in the unit
-test.)
-
-
-Contact
-=======
-
-Snappy is distributed through Google Code. For the latest version, a bug tracker,
-and other information, see
-
- http://code.google.com/p/snappy/
+++ /dev/null
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-@%:@@%:@ ----------- @%:@@%:@
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-_ACEOF
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-@%:@@%:@ ---------------- @%:@@%:@
-@%:@@%:@ Cache variables. @%:@@%:@
-@%:@@%:@ ---------------- @%:@@%:@
-_ASBOX
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-@%:@@%:@ ----------------- @%:@@%:@
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-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
-
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-
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-
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-
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- CXXCPP=$ac_cv_prog_CXXCPP
-else
- ac_cv_prog_CXXCPP=$CXXCPP
-fi
-echo "$as_me:$LINENO: result: $CXXCPP" >&5
-echo "${ECHO_T}$CXXCPP" >&6
-ac_preproc_ok=false
-for ac_cxx_preproc_warn_flag in '' yes
-do
- # Use a header file that comes with gcc, so configuring glibc
- # with a fresh cross-compiler works.
- # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- # <limits.h> exists even on freestanding compilers.
- # On the NeXT, cc -E runs the code through the compiler's parser,
- # not just through cpp. "Syntax error" is here to catch this case.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-@%:@ifdef __STDC__
-@%:@ include <limits.h>
-@%:@else
-@%:@ include <assert.h>
-@%:@endif
- Syntax error
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- :
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.$ac_ext
-
- # OK, works on sane cases. Now check whether non-existent headers
- # can be detected and how.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-@%:@include <ac_nonexistent.h>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- # Broken: success on invalid input.
-continue
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
- :
-else
- { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&5
-echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-ac_ext=cc
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-
-echo "$as_me:$LINENO: checking for egrep" >&5
-echo $ECHO_N "checking for egrep... $ECHO_C" >&6
-if test "${ac_cv_prog_egrep+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if echo a | (grep -E '(a|b)') >/dev/null 2>&1
- then ac_cv_prog_egrep='grep -E'
- else ac_cv_prog_egrep='egrep'
- fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
-echo "${ECHO_T}$ac_cv_prog_egrep" >&6
- EGREP=$ac_cv_prog_egrep
-
-
-echo "$as_me:$LINENO: checking for ANSI C header files" >&5
-echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
-if test "${ac_cv_header_stdc+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_header_stdc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_header_stdc=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
- # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "memchr" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "free" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
- if test "$cross_compiling" = yes; then
- :
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ctype.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
- (('a' <= (c) && (c) <= 'i') \
- || ('j' <= (c) && (c) <= 'r') \
- || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
- int i;
- for (i = 0; i < 256; i++)
- if (XOR (islower (i), ISLOWER (i))
- || toupper (i) != TOUPPER (i))
- exit(2);
- exit (0);
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- :
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_header_stdc=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
-echo "${ECHO_T}$ac_cv_header_stdc" >&6
-if test $ac_cv_header_stdc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define STDC_HEADERS 1
-_ACEOF
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
- inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-
-@%:@include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- eval "$as_ac_Header=yes"
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-eval "$as_ac_Header=no"
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-@%:@define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-
-
-
-
-
-
-
-
-for ac_header in stdint.h stddef.h sys/mman.h sys/resource.h windows.h byteswap.h sys/byteswap.h sys/endian.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-else
- # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-@%:@include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_header_compiler=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_header_compiler=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-@%:@include <$ac_header>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- ac_header_preproc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
- yes:no: )
- { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
- ;;
- no:yes:* )
- { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
- (
- cat <<\_ASBOX
-@%:@@%:@ --------------------------------- @%:@@%:@
-@%:@@%:@ Report this to the snappy lists. @%:@@%:@
-@%:@@%:@ --------------------------------- @%:@@%:@
-_ASBOX
- ) |
- sed "s/^/$as_me: WARNING: /" >&2
- ;;
-esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- eval "$as_ac_Header=\$ac_header_preproc"
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-@%:@define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-# Don't use AC_FUNC_MMAP, as it checks for mappings of already-mapped memory,
-# which we don't need (and does not exist on Windows).
-echo "$as_me:$LINENO: checking for mmap" >&5
-echo $ECHO_N "checking for mmap... $ECHO_C" >&6
-if test "${ac_cv_func_mmap+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-/* Define mmap to an innocuous variant, in case <limits.h> declares mmap.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define mmap innocuous_mmap
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char mmap (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef mmap
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char mmap ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_mmap) || defined (__stub___mmap)
-choke me
-#else
-char (*f) () = mmap;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-int
-main ()
-{
-return f != mmap;
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_func_mmap=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_func_mmap=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $ac_cv_func_mmap" >&5
-echo "${ECHO_T}$ac_cv_func_mmap" >&6
-
-
-
-# Check whether --enable-gtest or --disable-gtest was given.
-if test "${enable_gtest+set}" = set; then
- enableval="$enable_gtest"
-
-else
- enable_gtest=
-fi;
-
-
-
-
-
-
-HAVE_GTEST="no"
-if test "x${enable_gtest}" != "xno"; then
- echo "$as_me:$LINENO: checking for 'gtest-config'" >&5
-echo $ECHO_N "checking for 'gtest-config'... $ECHO_C" >&6
- if test "x${enable_gtest}" = "xyes"; then
- if test -x "${enable_gtest}/scripts/gtest-config"; then
- GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"
-else
- GTEST_CONFIG="${enable_gtest}/bin/gtest-config"
-fi
-
- if test -x "${GTEST_CONFIG}"; then
- :
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- { { echo "$as_me:$LINENO: error: Unable to locate either a built or installed Google Test.
-The specific location '${enable_gtest}' was provided for a built or installed
-Google Test, but no 'gtest-config' script could be found at this location." >&5
-echo "$as_me: error: Unable to locate either a built or installed Google Test.
-The specific location '${enable_gtest}' was provided for a built or installed
-Google Test, but no 'gtest-config' script could be found at this location." >&2;}
- { (exit 1); exit 1; }; }
-
-fi
-
-else
- # Extract the first word of "gtest-config", so it can be a program name with args.
-set dummy gtest-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_GTEST_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $GTEST_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_GTEST_CONFIG="$GTEST_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_GTEST_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-GTEST_CONFIG=$ac_cv_path_GTEST_CONFIG
-
-if test -n "$GTEST_CONFIG"; then
- echo "$as_me:$LINENO: result: $GTEST_CONFIG" >&5
-echo "${ECHO_T}$GTEST_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-
- if test -x "${GTEST_CONFIG}"; then
- echo "$as_me:$LINENO: result: ${GTEST_CONFIG}" >&5
-echo "${ECHO_T}${GTEST_CONFIG}" >&6
- _gtest_min_version="--min-version=0"
- echo "$as_me:$LINENO: checking for Google Test" >&5
-echo $ECHO_N "checking for Google Test... $ECHO_C" >&6
- if ${GTEST_CONFIG} ${_gtest_min_version}; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- HAVE_GTEST='yes'
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- if test "x${HAVE_GTEST}" = "xyes"; then
- GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags`
- GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags`
- GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
- GTEST_LIBS=`${GTEST_CONFIG} --libs`
- GTEST_VERSION=`${GTEST_CONFIG} --version`
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_GTEST 1
-_ACEOF
-
-else
- if test "x${enable_gtest}" = "xyes"; then
- { { echo "$as_me:$LINENO: error: Google Test was enabled, but no viable version could be found." >&5
-echo "$as_me: error: Google Test was enabled, but no viable version could be found." >&2;}
- { (exit 1); exit 1; }; }
-
-fi
-
-fi
-
-fi
-
-
-
-
-if test "x$HAVE_GTEST" = "xyes"; then
- HAVE_GTEST_TRUE=
- HAVE_GTEST_FALSE='#'
-else
- HAVE_GTEST_TRUE='#'
- HAVE_GTEST_FALSE=
-fi
-
-if test "x$HAVE_GTEST" = "xyes"; then
- true
-else
- true # Ignore; we can live without it.
-fi
-
-
-
-
-# Check whether --with-gflags or --without-gflags was given.
-if test "${with_gflags+set}" = set; then
- withval="$with_gflags"
-
-else
- with_gflags=check
-fi;
-
-if test "x$with_gflags" != "xno"; then
-
-
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
-set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $PKG_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-PKG_CONFIG=$ac_cv_path_PKG_CONFIG
-
-if test -n "$PKG_CONFIG"; then
- echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
-echo "${ECHO_T}$PKG_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-if test -z "$ac_cv_path_PKG_CONFIG"; then
- ac_pt_PKG_CONFIG=$PKG_CONFIG
- # Extract the first word of "pkg-config", so it can be a program name with args.
-set dummy pkg-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $ac_pt_PKG_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
-
-if test -n "$ac_pt_PKG_CONFIG"; then
- echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
-echo "${ECHO_T}$ac_pt_PKG_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- PKG_CONFIG=$ac_pt_PKG_CONFIG
-else
- PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
-fi
-
-fi
-if test -n "$PKG_CONFIG"; then
- _pkg_min_version=0.9.0
- echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
-echo $ECHO_N "checking pkg-config is at least version $_pkg_min_version... $ECHO_C" >&6
- if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- PKG_CONFIG=""
- fi
-
-fi
-
-pkg_failed=no
-echo "$as_me:$LINENO: checking for gflags" >&5
-echo $ECHO_N "checking for gflags... $ECHO_C" >&6
-
-if test -n "$PKG_CONFIG"; then
- if test -n "$gflags_CFLAGS"; then
- pkg_cv_gflags_CFLAGS="$gflags_CFLAGS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libgflags\"") >&5
- ($PKG_CONFIG --exists --print-errors "libgflags") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_gflags_CFLAGS=`$PKG_CONFIG --cflags "libgflags" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-if test -n "$PKG_CONFIG"; then
- if test -n "$gflags_LIBS"; then
- pkg_cv_gflags_LIBS="$gflags_LIBS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libgflags\"") >&5
- ($PKG_CONFIG --exists --print-errors "libgflags") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_gflags_LIBS=`$PKG_CONFIG --libs "libgflags" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
- _pkg_short_errors_supported=yes
-else
- _pkg_short_errors_supported=no
-fi
- if test $_pkg_short_errors_supported = yes; then
- gflags_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libgflags"`
- else
- gflags_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libgflags"`
- fi
- # Put the nasty error message in config.log where it belongs
- echo "$gflags_PKG_ERRORS" >&5
-
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- if test "x$with_gflags" != "xcheck"; then
- { { echo "$as_me:$LINENO: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&5
-echo "$as_me: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
-elif test $pkg_failed = untried; then
- if test "x$with_gflags" != "xcheck"; then
- { { echo "$as_me:$LINENO: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&5
-echo "$as_me: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
-else
- gflags_CFLAGS=$pkg_cv_gflags_CFLAGS
- gflags_LIBS=$pkg_cv_gflags_LIBS
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_GFLAGS 1
-_ACEOF
-
-fi
-fi
-
-# See if we have __builtin_expect.
-# TODO: Use AC_CACHE.
-echo "$as_me:$LINENO: checking if the compiler supports __builtin_expect" >&5
-echo $ECHO_N "checking if the compiler supports __builtin_expect... $ECHO_C" >&6
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- return __builtin_expect(1, 1) ? 1 : 0
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- snappy_have_builtin_expect=yes
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
- snappy_have_builtin_expect=no
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-if test x$snappy_have_builtin_expect = xyes ; then
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_BUILTIN_EXPECT 1
-_ACEOF
-
-fi
-
-# See if we have working count-trailing-zeros intrinsics.
-# TODO: Use AC_CACHE.
-echo "$as_me:$LINENO: checking if the compiler supports __builtin_ctzll" >&5
-echo $ECHO_N "checking if the compiler supports __builtin_ctzll... $ECHO_C" >&6
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- snappy_have_builtin_ctz=yes
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
- snappy_have_builtin_ctz=no
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-if test x$snappy_have_builtin_ctz = xyes ; then
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_BUILTIN_CTZ 1
-_ACEOF
-
-fi
-
-# Other compression libraries; the unit test can use these for comparison
-# if they are available. If they are not found, just ignore.
-UNITTEST_LIBS=""
-
-
-
-
- echo "$as_me:$LINENO: checking for zlibVersion in -lz" >&5
-echo $ECHO_N "checking for zlibVersion in -lz... $ECHO_C" >&6
-if test "${ac_cv_lib_z_zlibVersion+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char zlibVersion ();
-int
-main ()
-{
-zlibVersion ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_z_zlibVersion=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_z_zlibVersion=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_z_zlibVersion" >&5
-echo "${ECHO_T}$ac_cv_lib_z_zlibVersion" >&6
-if test $ac_cv_lib_z_zlibVersion = yes; then
-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBZ 1
-_ACEOF
-
- UNITTEST_LIBS="-lz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for lzo1x_1_15_compress in -llzo2" >&5
-echo $ECHO_N "checking for lzo1x_1_15_compress in -llzo2... $ECHO_C" >&6
-if test "${ac_cv_lib_lzo2_lzo1x_1_15_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-llzo2 $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char lzo1x_1_15_compress ();
-int
-main ()
-{
-lzo1x_1_15_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_lzo2_lzo1x_1_15_compress=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_lzo2_lzo1x_1_15_compress=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_lzo2_lzo1x_1_15_compress" >&5
-echo "${ECHO_T}$ac_cv_lib_lzo2_lzo1x_1_15_compress" >&6
-if test $ac_cv_lib_lzo2_lzo1x_1_15_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBLZO2 1
-_ACEOF
-
- UNITTEST_LIBS="-llzo2 $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for lzf_compress in -llzf" >&5
-echo $ECHO_N "checking for lzf_compress in -llzf... $ECHO_C" >&6
-if test "${ac_cv_lib_lzf_lzf_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-llzf $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char lzf_compress ();
-int
-main ()
-{
-lzf_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_lzf_lzf_compress=yes
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_lzf_lzf_compress=no
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-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
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-if test $ac_cv_lib_lzf_lzf_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBLZF 1
-_ACEOF
-
- UNITTEST_LIBS="-llzf $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for fastlz_compress in -lfastlz" >&5
-echo $ECHO_N "checking for fastlz_compress in -lfastlz... $ECHO_C" >&6
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- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lfastlz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char fastlz_compress ();
-int
-main ()
-{
-fastlz_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_fastlz_fastlz_compress=no
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-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
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-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBFASTLZ 1
-_ACEOF
-
- UNITTEST_LIBS="-lfastlz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for qlz_compress in -lquicklz" >&5
-echo $ECHO_N "checking for qlz_compress in -lquicklz... $ECHO_C" >&6
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- ac_check_lib_save_LIBS=$LIBS
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-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
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-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
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-extern "C"
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-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
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-int
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-{
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- return 0;
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-_ACEOF
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
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- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- ac_status=$?
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- (exit $ac_status); }; }; then
- ac_cv_lib_quicklz_qlz_compress=yes
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_quicklz_qlz_compress=no
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-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
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-echo "$as_me:$LINENO: result: $ac_cv_lib_quicklz_qlz_compress" >&5
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- cat >>confdefs.h <<_ACEOF
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-_ACEOF
-
- UNITTEST_LIBS="-lquicklz $UNITTEST_LIBS"
-
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- true
-
-fi
-
-
-
-
-# These are used by snappy-stubs-public.h.in.
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-
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- ac_cv_have_stdint_h=0
-
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-
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- ac_cv_have_stddef_h=0
-
-fi
-
-# Export the version to snappy-stubs-public.h.
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-SNAPPY_MINOR="0"
-SNAPPY_PATCHLEVEL="5"
-
-
-
-
-SNAPPY_LTVERSION=2:3:1
-
-
- ac_config_headers="$ac_config_headers config.h"
-
- ac_config_files="$ac_config_files Makefile snappy-stubs-public.h"
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs, see configure's option --config-cache.
-# It is not useful on other systems. If it contains results you don't
-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
-# the --recheck option to rerun configure.
-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
-# following values.
-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
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-# Ultrix sh set writes to stderr and can't be redirected directly,
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-{
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- case `(ac_space=' '; set | grep ac_space) 2>&1` in
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- *)
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- ;;
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-}'
-fi
-
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- { (exit 1); exit 1; }; }
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-if test -z "${HAVE_GTEST_TRUE}" && test -z "${HAVE_GTEST_FALSE}"; then
- { { echo "$as_me:$LINENO: error: conditional \"HAVE_GTEST\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-echo "$as_me: error: conditional \"HAVE_GTEST\" was never defined.
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- { (exit 1); exit 1; }; }
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-
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-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
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- LC_TELEPHONE LC_TIME
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-
-# Name of the executable.
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- X"$0" : 'X\(/\)$' \| \
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-echo X/"$0" |
- sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
- /^X\/\(\/\/\)$/{ s//\1/; q; }
- /^X\/\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
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- echo "exit 0" >>conf$$.sh
- chmod +x conf$$.sh
- if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
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-echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
- { (exit 1); exit 1; }; }
- fi
- case $CONFIG_SHELL in
- '')
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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- sed '
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- t loop
- s,-$,,
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- # Don't try to exec as it changes $[0], causing all sort of problems
- # (the dirname of $[0] is not the place where we might find the
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-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
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-
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- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test -n "$STRIP"; then
- ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
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- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_STRIP="${ac_tool_prefix}strip"
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- break 2
- fi
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-done
-
-fi
-fi
-STRIP=$ac_cv_prog_STRIP
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- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-if test -z "$ac_cv_prog_STRIP"; then
- ac_ct_STRIP=$STRIP
- # Extract the first word of "strip", so it can be a program name with args.
-set dummy strip; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test -n "$ac_ct_STRIP"; then
- ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
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- ac_cv_prog_ac_ct_STRIP="strip"
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- break 2
- fi
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-done
-
- test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
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-fi
-ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
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-echo "${ECHO_T}$ac_ct_STRIP" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- STRIP=$ac_ct_STRIP
-else
- STRIP="$ac_cv_prog_STRIP"
-fi
-
-fi
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-
-# We need awk for the "check" target. The system "awk" is bad on
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-
-AMTAR=${AMTAR-"${am_missing_run}tar"}
-
-am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
-
-
-
-
-
-
-LT_INIT
-
-ac_ext=cc
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-if test -n "$ac_tool_prefix"; then
- for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
- do
- # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
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-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_CXX+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test -n "$CXX"; then
- ac_cv_prog_CXX="$CXX" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
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- break 2
- fi
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-done
-
-fi
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-CXX=$ac_cv_prog_CXX
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-echo "${ECHO_T}$CXX" >&6
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- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- test -n "$CXX" && break
- done
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-if test -z "$CXX"; then
- ac_ct_CXX=$CXX
- for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
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-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test -n "$ac_ct_CXX"; then
- ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
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- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_ac_ct_CXX="$ac_prog"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
-fi
-fi
-ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
-if test -n "$ac_ct_CXX"; then
- echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
-echo "${ECHO_T}$ac_ct_CXX" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- test -n "$ac_ct_CXX" && break
-done
-test -n "$ac_ct_CXX" || ac_ct_CXX="g++"
-
- CXX=$ac_ct_CXX
-fi
-
-
-# Provide some information about the compiler.
-echo "$as_me:$LINENO:" \
- "checking for C++ compiler version" >&5
-ac_compiler=`set X $ac_compile; echo $2`
-{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
- (eval $ac_compiler --version </dev/null >&5) 2>&5
- ac_status=$?
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- (exit $ac_status); }
-{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
- (eval $ac_compiler -v </dev/null >&5) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }
-{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
- (eval $ac_compiler -V </dev/null >&5) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files a.out a.exe b.out"
-# Try to create an executable without -o first, disregard a.out.
-# It will help us diagnose broken compilers, and finding out an intuition
-# of exeext.
-echo "$as_me:$LINENO: checking for C++ compiler default output file name" >&5
-echo $ECHO_N "checking for C++ compiler default output file name... $ECHO_C" >&6
-ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
-if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
- (eval $ac_link_default) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- # Find the output, starting from the most likely. This scheme is
-# not robust to junk in `.', hence go to wildcards (a.*) only as a last
-# resort.
-
-# Be careful to initialize this variable, since it used to be cached.
-# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
-ac_cv_exeext=
-# b.out is created by i960 compilers.
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-do
- test -f "$ac_file" || continue
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- ;;
- conftest.$ac_ext )
- # This is the source file.
- ;;
- [ab].out )
- # We found the default executable, but exeext='' is most
- # certainly right.
- break;;
- *.* )
- ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
- # FIXME: I believe we export ac_cv_exeext for Libtool,
- # but it would be cool to find out if it's true. Does anybody
- # maintain Libtool? --akim.
- export ac_cv_exeext
- break;;
- * )
- break;;
- esac
-done
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-{ { echo "$as_me:$LINENO: error: C++ compiler cannot create executables
-See \`config.log' for more details." >&5
-echo "$as_me: error: C++ compiler cannot create executables
-See \`config.log' for more details." >&2;}
- { (exit 77); exit 77; }; }
-fi
-
-ac_exeext=$ac_cv_exeext
-echo "$as_me:$LINENO: result: $ac_file" >&5
-echo "${ECHO_T}$ac_file" >&6
-
-# Check the compiler produces executables we can run. If not, either
-# the compiler is broken, or we cross compile.
-echo "$as_me:$LINENO: checking whether the C++ compiler works" >&5
-echo $ECHO_N "checking whether the C++ compiler works... $ECHO_C" >&6
-# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
-# If not cross compiling, check that we can run a simple program.
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- if { ac_try='./$ac_file'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- cross_compiling=no
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- if test "$cross_compiling" = maybe; then
- cross_compiling=yes
- else
- { { echo "$as_me:$LINENO: error: cannot run C++ compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&5
-echo "$as_me: error: cannot run C++ compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
- fi
-fi
-echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-rm -f a.out a.exe conftest$ac_cv_exeext b.out
-ac_clean_files=$ac_clean_files_save
-# Check the compiler produces executables we can run. If not, either
-# the compiler is broken, or we cross compile.
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-echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
-echo "$as_me:$LINENO: result: $cross_compiling" >&5
-echo "${ECHO_T}$cross_compiling" >&6
-
-echo "$as_me:$LINENO: checking for suffix of executables" >&5
-echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
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- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- # If both `conftest.exe' and `conftest' are `present' (well, observable)
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- *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
- export ac_cv_exeext
- break;;
- * ) break;;
- esac
-done
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- { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&5
-echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
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-
-rm -f conftest$ac_cv_exeext
-echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
-echo "${ECHO_T}$ac_cv_exeext" >&6
-
-rm -f conftest.$ac_ext
-EXEEXT=$ac_cv_exeext
-ac_exeext=$EXEEXT
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-echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
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- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.o conftest.obj
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
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- *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
- *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
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- esac
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&5
-echo "$as_me: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
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-echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
-echo "${ECHO_T}$ac_cv_objext" >&6
-OBJEXT=$ac_cv_objext
-ac_objext=$OBJEXT
-echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
-echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
-if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-#ifndef __GNUC__
- choke me
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_compiler_gnu=yes
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_compiler_gnu=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
-
-fi
-echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
-echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
-GXX=`test $ac_compiler_gnu = yes && echo yes`
-ac_test_CXXFLAGS=${CXXFLAGS+set}
-ac_save_CXXFLAGS=$CXXFLAGS
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-echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
-if test "${ac_cv_prog_cxx_g+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
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-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
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- rm -f conftest.er1
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
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- ac_status=$?
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- (exit $ac_status); }; } &&
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- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- echo "$as_me: failed program was:" >&5
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-
-ac_cv_prog_cxx_g=no
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-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
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-echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
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- CXXFLAGS=$ac_save_CXXFLAGS
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- else
- CXXFLAGS="-g"
- fi
-else
- if test "$GXX" = yes; then
- CXXFLAGS="-O2"
- else
- CXXFLAGS=
- fi
-fi
-for ac_declaration in \
- '' \
- 'extern "C" void std::exit (int) throw (); using std::exit;' \
- 'extern "C" void std::exit (int); using std::exit;' \
- 'extern "C" void exit (int) throw ();' \
- 'extern "C" void exit (int);' \
- 'void exit (int);'
-do
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_declaration
-@%:@include <stdlib.h>
-int
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-{
-exit (42);
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- return 0;
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-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
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- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- :
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-continue
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-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_declaration
-int
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-{
-exit (42);
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- return 0;
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- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- :
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.$ac_ext
-
- # OK, works on sane cases. Now check whether non-existent headers
- # can be detected and how.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-@%:@include <ac_nonexistent.h>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- # Broken: success on invalid input.
-continue
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
- :
-else
- { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&5
-echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-ac_ext=cc
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-
-echo "$as_me:$LINENO: checking for egrep" >&5
-echo $ECHO_N "checking for egrep... $ECHO_C" >&6
-if test "${ac_cv_prog_egrep+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if echo a | (grep -E '(a|b)') >/dev/null 2>&1
- then ac_cv_prog_egrep='grep -E'
- else ac_cv_prog_egrep='egrep'
- fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
-echo "${ECHO_T}$ac_cv_prog_egrep" >&6
- EGREP=$ac_cv_prog_egrep
-
-
-echo "$as_me:$LINENO: checking for ANSI C header files" >&5
-echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
-if test "${ac_cv_header_stdc+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_header_stdc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_header_stdc=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
- # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "memchr" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "free" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
- if test "$cross_compiling" = yes; then
- :
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ctype.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
- (('a' <= (c) && (c) <= 'i') \
- || ('j' <= (c) && (c) <= 'r') \
- || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
- int i;
- for (i = 0; i < 256; i++)
- if (XOR (islower (i), ISLOWER (i))
- || toupper (i) != TOUPPER (i))
- exit(2);
- exit (0);
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- :
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_header_stdc=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
-echo "${ECHO_T}$ac_cv_header_stdc" >&6
-if test $ac_cv_header_stdc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define STDC_HEADERS 1
-_ACEOF
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
- inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-
-@%:@include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- eval "$as_ac_Header=yes"
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-eval "$as_ac_Header=no"
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-@%:@define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-
-
-
-
-
-
-
-
-for ac_header in stdint.h stddef.h sys/mman.h sys/resource.h windows.h byteswap.h sys/byteswap.h sys/endian.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-else
- # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-@%:@include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_header_compiler=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_header_compiler=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-@%:@include <$ac_header>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- ac_header_preproc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
- yes:no: )
- { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
- ;;
- no:yes:* )
- { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
- (
- cat <<\_ASBOX
-@%:@@%:@ --------------------------------- @%:@@%:@
-@%:@@%:@ Report this to the snappy lists. @%:@@%:@
-@%:@@%:@ --------------------------------- @%:@@%:@
-_ASBOX
- ) |
- sed "s/^/$as_me: WARNING: /" >&2
- ;;
-esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- eval "$as_ac_Header=\$ac_header_preproc"
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-@%:@define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-# Don't use AC_FUNC_MMAP, as it checks for mappings of already-mapped memory,
-# which we don't need (and does not exist on Windows).
-echo "$as_me:$LINENO: checking for mmap" >&5
-echo $ECHO_N "checking for mmap... $ECHO_C" >&6
-if test "${ac_cv_func_mmap+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-/* Define mmap to an innocuous variant, in case <limits.h> declares mmap.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define mmap innocuous_mmap
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char mmap (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef mmap
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char mmap ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_mmap) || defined (__stub___mmap)
-choke me
-#else
-char (*f) () = mmap;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-int
-main ()
-{
-return f != mmap;
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_func_mmap=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_func_mmap=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $ac_cv_func_mmap" >&5
-echo "${ECHO_T}$ac_cv_func_mmap" >&6
-
-
-
-# Check whether --enable-gtest or --disable-gtest was given.
-if test "${enable_gtest+set}" = set; then
- enableval="$enable_gtest"
-
-else
- enable_gtest=
-fi;
-
-
-
-
-
-
-HAVE_GTEST="no"
-if test "x${enable_gtest}" != "xno"; then
- echo "$as_me:$LINENO: checking for 'gtest-config'" >&5
-echo $ECHO_N "checking for 'gtest-config'... $ECHO_C" >&6
- if test "x${enable_gtest}" = "xyes"; then
- if test -x "${enable_gtest}/scripts/gtest-config"; then
- GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"
-else
- GTEST_CONFIG="${enable_gtest}/bin/gtest-config"
-fi
-
- if test -x "${GTEST_CONFIG}"; then
- :
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- { { echo "$as_me:$LINENO: error: Unable to locate either a built or installed Google Test.
-The specific location '${enable_gtest}' was provided for a built or installed
-Google Test, but no 'gtest-config' script could be found at this location." >&5
-echo "$as_me: error: Unable to locate either a built or installed Google Test.
-The specific location '${enable_gtest}' was provided for a built or installed
-Google Test, but no 'gtest-config' script could be found at this location." >&2;}
- { (exit 1); exit 1; }; }
-
-fi
-
-else
- # Extract the first word of "gtest-config", so it can be a program name with args.
-set dummy gtest-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_GTEST_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $GTEST_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_GTEST_CONFIG="$GTEST_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_GTEST_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-GTEST_CONFIG=$ac_cv_path_GTEST_CONFIG
-
-if test -n "$GTEST_CONFIG"; then
- echo "$as_me:$LINENO: result: $GTEST_CONFIG" >&5
-echo "${ECHO_T}$GTEST_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-
- if test -x "${GTEST_CONFIG}"; then
- echo "$as_me:$LINENO: result: ${GTEST_CONFIG}" >&5
-echo "${ECHO_T}${GTEST_CONFIG}" >&6
- _gtest_min_version="--min-version=0"
- echo "$as_me:$LINENO: checking for Google Test" >&5
-echo $ECHO_N "checking for Google Test... $ECHO_C" >&6
- if ${GTEST_CONFIG} ${_gtest_min_version}; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- HAVE_GTEST='yes'
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- if test "x${HAVE_GTEST}" = "xyes"; then
- GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags`
- GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags`
- GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
- GTEST_LIBS=`${GTEST_CONFIG} --libs`
- GTEST_VERSION=`${GTEST_CONFIG} --version`
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_GTEST 1
-_ACEOF
-
-else
- if test "x${enable_gtest}" = "xyes"; then
- { { echo "$as_me:$LINENO: error: Google Test was enabled, but no viable version could be found." >&5
-echo "$as_me: error: Google Test was enabled, but no viable version could be found." >&2;}
- { (exit 1); exit 1; }; }
-
-fi
-
-fi
-
-fi
-
-
-
-
-if test "x$HAVE_GTEST" = "xyes"; then
- HAVE_GTEST_TRUE=
- HAVE_GTEST_FALSE='#'
-else
- HAVE_GTEST_TRUE='#'
- HAVE_GTEST_FALSE=
-fi
-
-if test "x$HAVE_GTEST" = "xyes"; then
- true
-else
- true # Ignore; we can live without it.
-fi
-
-
-
-
-# Check whether --with-gflags or --without-gflags was given.
-if test "${with_gflags+set}" = set; then
- withval="$with_gflags"
-
-else
- with_gflags=check
-fi;
-
-if test "x$with_gflags" != "xno"; then
-
-
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
-set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $PKG_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-PKG_CONFIG=$ac_cv_path_PKG_CONFIG
-
-if test -n "$PKG_CONFIG"; then
- echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
-echo "${ECHO_T}$PKG_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-if test -z "$ac_cv_path_PKG_CONFIG"; then
- ac_pt_PKG_CONFIG=$PKG_CONFIG
- # Extract the first word of "pkg-config", so it can be a program name with args.
-set dummy pkg-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $ac_pt_PKG_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
-
-if test -n "$ac_pt_PKG_CONFIG"; then
- echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
-echo "${ECHO_T}$ac_pt_PKG_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- PKG_CONFIG=$ac_pt_PKG_CONFIG
-else
- PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
-fi
-
-fi
-if test -n "$PKG_CONFIG"; then
- _pkg_min_version=0.9.0
- echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
-echo $ECHO_N "checking pkg-config is at least version $_pkg_min_version... $ECHO_C" >&6
- if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- PKG_CONFIG=""
- fi
-
-fi
-
-pkg_failed=no
-echo "$as_me:$LINENO: checking for gflags" >&5
-echo $ECHO_N "checking for gflags... $ECHO_C" >&6
-
-if test -n "$PKG_CONFIG"; then
- if test -n "$gflags_CFLAGS"; then
- pkg_cv_gflags_CFLAGS="$gflags_CFLAGS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libgflags\"") >&5
- ($PKG_CONFIG --exists --print-errors "libgflags") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_gflags_CFLAGS=`$PKG_CONFIG --cflags "libgflags" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-if test -n "$PKG_CONFIG"; then
- if test -n "$gflags_LIBS"; then
- pkg_cv_gflags_LIBS="$gflags_LIBS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libgflags\"") >&5
- ($PKG_CONFIG --exists --print-errors "libgflags") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_gflags_LIBS=`$PKG_CONFIG --libs "libgflags" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
- _pkg_short_errors_supported=yes
-else
- _pkg_short_errors_supported=no
-fi
- if test $_pkg_short_errors_supported = yes; then
- gflags_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libgflags"`
- else
- gflags_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libgflags"`
- fi
- # Put the nasty error message in config.log where it belongs
- echo "$gflags_PKG_ERRORS" >&5
-
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- if test "x$with_gflags" != "xcheck"; then
- { { echo "$as_me:$LINENO: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&5
-echo "$as_me: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
-elif test $pkg_failed = untried; then
- if test "x$with_gflags" != "xcheck"; then
- { { echo "$as_me:$LINENO: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&5
-echo "$as_me: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
-else
- gflags_CFLAGS=$pkg_cv_gflags_CFLAGS
- gflags_LIBS=$pkg_cv_gflags_LIBS
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_GFLAGS 1
-_ACEOF
-
-fi
-fi
-
-# See if we have __builtin_expect.
-# TODO: Use AC_CACHE.
-echo "$as_me:$LINENO: checking if the compiler supports __builtin_expect" >&5
-echo $ECHO_N "checking if the compiler supports __builtin_expect... $ECHO_C" >&6
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- return __builtin_expect(1, 1) ? 1 : 0
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- snappy_have_builtin_expect=yes
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
- snappy_have_builtin_expect=no
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-if test x$snappy_have_builtin_expect = xyes ; then
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_BUILTIN_EXPECT 1
-_ACEOF
-
-fi
-
-# See if we have working count-trailing-zeros intrinsics.
-# TODO: Use AC_CACHE.
-echo "$as_me:$LINENO: checking if the compiler supports __builtin_ctzll" >&5
-echo $ECHO_N "checking if the compiler supports __builtin_ctzll... $ECHO_C" >&6
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- snappy_have_builtin_ctz=yes
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
- snappy_have_builtin_ctz=no
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-if test x$snappy_have_builtin_ctz = xyes ; then
-
-cat >>confdefs.h <<\_ACEOF
-@%:@define HAVE_BUILTIN_CTZ 1
-_ACEOF
-
-fi
-
-# Other compression libraries; the unit test can use these for comparison
-# if they are available. If they are not found, just ignore.
-UNITTEST_LIBS=""
-
-
-
-
- echo "$as_me:$LINENO: checking for zlibVersion in -lz" >&5
-echo $ECHO_N "checking for zlibVersion in -lz... $ECHO_C" >&6
-if test "${ac_cv_lib_z_zlibVersion+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char zlibVersion ();
-int
-main ()
-{
-zlibVersion ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_z_zlibVersion=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_z_zlibVersion=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_z_zlibVersion" >&5
-echo "${ECHO_T}$ac_cv_lib_z_zlibVersion" >&6
-if test $ac_cv_lib_z_zlibVersion = yes; then
-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBZ 1
-_ACEOF
-
- UNITTEST_LIBS="-lz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for lzo1x_1_15_compress in -llzo2" >&5
-echo $ECHO_N "checking for lzo1x_1_15_compress in -llzo2... $ECHO_C" >&6
-if test "${ac_cv_lib_lzo2_lzo1x_1_15_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-llzo2 $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char lzo1x_1_15_compress ();
-int
-main ()
-{
-lzo1x_1_15_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_lzo2_lzo1x_1_15_compress=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_lzo2_lzo1x_1_15_compress=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_lzo2_lzo1x_1_15_compress" >&5
-echo "${ECHO_T}$ac_cv_lib_lzo2_lzo1x_1_15_compress" >&6
-if test $ac_cv_lib_lzo2_lzo1x_1_15_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBLZO2 1
-_ACEOF
-
- UNITTEST_LIBS="-llzo2 $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for lzf_compress in -llzf" >&5
-echo $ECHO_N "checking for lzf_compress in -llzf... $ECHO_C" >&6
-if test "${ac_cv_lib_lzf_lzf_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-llzf $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char lzf_compress ();
-int
-main ()
-{
-lzf_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
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- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_lzf_lzf_compress=yes
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_lzf_lzf_compress=no
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-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
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-echo "${ECHO_T}$ac_cv_lib_lzf_lzf_compress" >&6
-if test $ac_cv_lib_lzf_lzf_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-@%:@define HAVE_LIBLZF 1
-_ACEOF
-
- UNITTEST_LIBS="-llzf $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for fastlz_compress in -lfastlz" >&5
-echo $ECHO_N "checking for fastlz_compress in -lfastlz... $ECHO_C" >&6
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- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lfastlz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char fastlz_compress ();
-int
-main ()
-{
-fastlz_compress ();
- ;
- return 0;
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-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
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- (eval $ac_link) 2>conftest.er1
- ac_status=$?
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
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- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- ac_status=$?
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- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
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-
-ac_cv_lib_fastlz_fastlz_compress=no
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-
- cat >>confdefs.h <<_ACEOF
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-_ACEOF
-
- UNITTEST_LIBS="-lfastlz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for qlz_compress in -lquicklz" >&5
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- ac_check_lib_save_LIBS=$LIBS
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-cat >>conftest.$ac_ext <<_ACEOF
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-
-/* Override any gcc2 internal prototype to avoid an error. */
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-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
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-int
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-{
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-rm -f conftest.$ac_objext conftest$ac_exeext
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- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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-rm -f conftest.err conftest.$ac_objext \
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- cat >>confdefs.h <<_ACEOF
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-_ACEOF
-
- UNITTEST_LIBS="-lquicklz $UNITTEST_LIBS"
-
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- true
-
-fi
-
-
-
-
-# These are used by snappy-stubs-public.h.in.
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-
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-
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-
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- ac_cv_have_stddef_h=0
-
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-# Export the version to snappy-stubs-public.h.
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-SNAPPY_MINOR="0"
-SNAPPY_PATCHLEVEL="5"
-
-
-
-
-SNAPPY_LTVERSION=2:3:1
-
-
- ac_config_headers="$ac_config_headers config.h"
-
- ac_config_files="$ac_config_files Makefile snappy-stubs-public.h"
-
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-# This file is a shell script that caches the results of configure
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-# scripts and configure runs, see configure's option --config-cache.
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-#
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-#
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-_ACEOF
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-{
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-
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- { (exit 1); exit 1; }; }
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-if test -z "${HAVE_GTEST_TRUE}" && test -z "${HAVE_GTEST_FALSE}"; then
- { { echo "$as_me:$LINENO: error: conditional \"HAVE_GTEST\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-echo "$as_me: error: conditional \"HAVE_GTEST\" was never defined.
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- { (exit 1); exit 1; }; }
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-
-: ${CONFIG_STATUS=./config.status}
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
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- LC_TELEPHONE LC_TIME
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-
-# Name of the executable.
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- X"$0" : 'X\(/\)$' \| \
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- sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
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- /^X\/\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
-
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- chmod +x conf$$.sh
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- rm -f conf$$.sh
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- { (exit 1); exit 1; }; }
- fi
- case $CONFIG_SHELL in
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-rm -f conf$$ conf$$.exe conf$$.file
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-rm -f conf$$ conf$$.exe conf$$.file
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-if mkdir -p . 2>/dev/null; then
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+++ /dev/null
-make CXXFLAGS="-O2 -DNDEBUG" CXX="/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++" LIBS="/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/jemalloc/jemalloc-2.2.4/96de4f9/lib/libjemalloc_pic.a"
+++ /dev/null
-#! /bin/sh
-# Attempt to guess a canonical system name.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-# Free Software Foundation, Inc.
-
-timestamp='2009-06-10'
-
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Originally written by Per Bothner <per@bothner.com>.
-# Please send patches to <config-patches@gnu.org>. Submit a context
-# diff and a properly formatted ChangeLog entry.
-#
-# This script attempts to guess a canonical system name similar to
-# config.sub. If it succeeds, it prints the system name on stdout, and
-# exits with 0. Otherwise, it exits with 1.
-#
-# The plan is that this can be called by configure scripts if you
-# don't specify an explicit build system type.
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION]
-
-Output the configuration name of the system \`$me' is run on.
-
-Operation modes:
- -h, --help print this help, then exit
- -t, --time-stamp print date of last modification, then exit
- -v, --version print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.guess ($timestamp)
-
-Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
- case $1 in
- --time-stamp | --time* | -t )
- echo "$timestamp" ; exit ;;
- --version | -v )
- echo "$version" ; exit ;;
- --help | --h* | -h )
- echo "$usage"; exit ;;
- -- ) # Stop option processing
- shift; break ;;
- - ) # Use stdin as input.
- break ;;
- -* )
- echo "$me: invalid option $1$help" >&2
- exit 1 ;;
- * )
- break ;;
- esac
-done
-
-if test $# != 0; then
- echo "$me: too many arguments$help" >&2
- exit 1
-fi
-
-trap 'exit 1' 1 2 15
-
-# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
-# compiler to aid in system detection is discouraged as it requires
-# temporary files to be created and, as you can see below, it is a
-# headache to deal with in a portable fashion.
-
-# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
-# use `HOST_CC' if defined, but it is deprecated.
-
-# Portable tmp directory creation inspired by the Autoconf team.
-
-set_cc_for_build='
-trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
-trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
-: ${TMPDIR=/tmp} ;
- { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
- { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
- { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
- { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
-dummy=$tmp/dummy ;
-tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
-case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,) echo "int x;" > $dummy.c ;
- for c in cc gcc c89 c99 ; do
- if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
- CC_FOR_BUILD="$c"; break ;
- fi ;
- done ;
- if test x"$CC_FOR_BUILD" = x ; then
- CC_FOR_BUILD=no_compiler_found ;
- fi
- ;;
- ,,*) CC_FOR_BUILD=$CC ;;
- ,*,*) CC_FOR_BUILD=$HOST_CC ;;
-esac ; set_cc_for_build= ;'
-
-# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
-# (ghazi@noc.rutgers.edu 1994-08-24)
-if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
- PATH=$PATH:/.attbin ; export PATH
-fi
-
-UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
-UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
-UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
-
-# Note: order is significant - the case branches are not exclusive.
-
-case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
- *:NetBSD:*:*)
- # NetBSD (nbsd) targets should (where applicable) match one or
- # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
- # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
- # switched to ELF, *-*-netbsd* would select the old
- # object file format. This provides both forward
- # compatibility and a consistent mechanism for selecting the
- # object file format.
- #
- # Note: NetBSD doesn't particularly care about the vendor
- # portion of the name. We always set it to "unknown".
- sysctl="sysctl -n hw.machine_arch"
- UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
- /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
- case "${UNAME_MACHINE_ARCH}" in
- armeb) machine=armeb-unknown ;;
- arm*) machine=arm-unknown ;;
- sh3el) machine=shl-unknown ;;
- sh3eb) machine=sh-unknown ;;
- sh5el) machine=sh5le-unknown ;;
- *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
- esac
- # The Operating System including object format, if it has switched
- # to ELF recently, or will in the future.
- case "${UNAME_MACHINE_ARCH}" in
- arm*|i386|m68k|ns32k|sh3*|sparc|vax)
- eval $set_cc_for_build
- if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ELF__
- then
- # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
- # Return netbsd for either. FIX?
- os=netbsd
- else
- os=netbsdelf
- fi
- ;;
- *)
- os=netbsd
- ;;
- esac
- # The OS release
- # Debian GNU/NetBSD machines have a different userland, and
- # thus, need a distinct triplet. However, they do not need
- # kernel version information, so it can be replaced with a
- # suitable tag, in the style of linux-gnu.
- case "${UNAME_VERSION}" in
- Debian*)
- release='-gnu'
- ;;
- *)
- release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
- ;;
- esac
- # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
- # contains redundant information, the shorter form:
- # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
- echo "${machine}-${os}${release}"
- exit ;;
- *:OpenBSD:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
- echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
- exit ;;
- *:ekkoBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
- exit ;;
- *:SolidBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
- exit ;;
- macppc:MirBSD:*:*)
- echo powerpc-unknown-mirbsd${UNAME_RELEASE}
- exit ;;
- *:MirBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
- exit ;;
- alpha:OSF1:*:*)
- case $UNAME_RELEASE in
- *4.0)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
- ;;
- *5.*)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
- ;;
- esac
- # According to Compaq, /usr/sbin/psrinfo has been available on
- # OSF/1 and Tru64 systems produced since 1995. I hope that
- # covers most systems running today. This code pipes the CPU
- # types through head -n 1, so we only detect the type of CPU 0.
- ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1`
- case "$ALPHA_CPU_TYPE" in
- "EV4 (21064)")
- UNAME_MACHINE="alpha" ;;
- "EV4.5 (21064)")
- UNAME_MACHINE="alpha" ;;
- "LCA4 (21066/21068)")
- UNAME_MACHINE="alpha" ;;
- "EV5 (21164)")
- UNAME_MACHINE="alphaev5" ;;
- "EV5.6 (21164A)")
- UNAME_MACHINE="alphaev56" ;;
- "EV5.6 (21164PC)")
- UNAME_MACHINE="alphapca56" ;;
- "EV5.7 (21164PC)")
- UNAME_MACHINE="alphapca57" ;;
- "EV6 (21264)")
- UNAME_MACHINE="alphaev6" ;;
- "EV6.7 (21264A)")
- UNAME_MACHINE="alphaev67" ;;
- "EV6.8CB (21264C)")
- UNAME_MACHINE="alphaev68" ;;
- "EV6.8AL (21264B)")
- UNAME_MACHINE="alphaev68" ;;
- "EV6.8CX (21264D)")
- UNAME_MACHINE="alphaev68" ;;
- "EV6.9A (21264/EV69A)")
- UNAME_MACHINE="alphaev69" ;;
- "EV7 (21364)")
- UNAME_MACHINE="alphaev7" ;;
- "EV7.9 (21364A)")
- UNAME_MACHINE="alphaev79" ;;
- esac
- # A Pn.n version is a patched version.
- # A Vn.n version is a released version.
- # A Tn.n version is a released field test version.
- # A Xn.n version is an unreleased experimental baselevel.
- # 1.2 uses "1.2" for uname -r.
- echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
- exit ;;
- Alpha\ *:Windows_NT*:*)
- # How do we know it's Interix rather than the generic POSIX subsystem?
- # Should we change UNAME_MACHINE based on the output of uname instead
- # of the specific Alpha model?
- echo alpha-pc-interix
- exit ;;
- 21064:Windows_NT:50:3)
- echo alpha-dec-winnt3.5
- exit ;;
- Amiga*:UNIX_System_V:4.0:*)
- echo m68k-unknown-sysv4
- exit ;;
- *:[Aa]miga[Oo][Ss]:*:*)
- echo ${UNAME_MACHINE}-unknown-amigaos
- exit ;;
- *:[Mm]orph[Oo][Ss]:*:*)
- echo ${UNAME_MACHINE}-unknown-morphos
- exit ;;
- *:OS/390:*:*)
- echo i370-ibm-openedition
- exit ;;
- *:z/VM:*:*)
- echo s390-ibm-zvmoe
- exit ;;
- *:OS400:*:*)
- echo powerpc-ibm-os400
- exit ;;
- arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
- echo arm-acorn-riscix${UNAME_RELEASE}
- exit ;;
- arm:riscos:*:*|arm:RISCOS:*:*)
- echo arm-unknown-riscos
- exit ;;
- SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
- echo hppa1.1-hitachi-hiuxmpp
- exit ;;
- Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
- # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
- if test "`(/bin/universe) 2>/dev/null`" = att ; then
- echo pyramid-pyramid-sysv3
- else
- echo pyramid-pyramid-bsd
- fi
- exit ;;
- NILE*:*:*:dcosx)
- echo pyramid-pyramid-svr4
- exit ;;
- DRS?6000:unix:4.0:6*)
- echo sparc-icl-nx6
- exit ;;
- DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
- case `/usr/bin/uname -p` in
- sparc) echo sparc-icl-nx7; exit ;;
- esac ;;
- s390x:SunOS:*:*)
- echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4H:SunOS:5.*:*)
- echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
- echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
- eval $set_cc_for_build
- SUN_ARCH="i386"
- # If there is a compiler, see if it is configured for 64-bit objects.
- # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
- # This test works for both compilers.
- if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
- if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
- (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_64BIT_ARCH >/dev/null
- then
- SUN_ARCH="x86_64"
- fi
- fi
- echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4*:SunOS:6*:*)
- # According to config.sub, this is the proper way to canonicalize
- # SunOS6. Hard to guess exactly what SunOS6 will be like, but
- # it's likely to be more like Solaris than SunOS4.
- echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4*:SunOS:*:*)
- case "`/usr/bin/arch -k`" in
- Series*|S4*)
- UNAME_RELEASE=`uname -v`
- ;;
- esac
- # Japanese Language versions have a version number like `4.1.3-JL'.
- echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
- exit ;;
- sun3*:SunOS:*:*)
- echo m68k-sun-sunos${UNAME_RELEASE}
- exit ;;
- sun*:*:4.2BSD:*)
- UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
- test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
- case "`/bin/arch`" in
- sun3)
- echo m68k-sun-sunos${UNAME_RELEASE}
- ;;
- sun4)
- echo sparc-sun-sunos${UNAME_RELEASE}
- ;;
- esac
- exit ;;
- aushp:SunOS:*:*)
- echo sparc-auspex-sunos${UNAME_RELEASE}
- exit ;;
- # The situation for MiNT is a little confusing. The machine name
- # can be virtually everything (everything which is not
- # "atarist" or "atariste" at least should have a processor
- # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
- # to the lowercase version "mint" (or "freemint"). Finally
- # the system name "TOS" denotes a system which is actually not
- # MiNT. But MiNT is downward compatible to TOS, so this should
- # be no problem.
- atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
- atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
- *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
- milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
- echo m68k-milan-mint${UNAME_RELEASE}
- exit ;;
- hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
- echo m68k-hades-mint${UNAME_RELEASE}
- exit ;;
- *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
- echo m68k-unknown-mint${UNAME_RELEASE}
- exit ;;
- m68k:machten:*:*)
- echo m68k-apple-machten${UNAME_RELEASE}
- exit ;;
- powerpc:machten:*:*)
- echo powerpc-apple-machten${UNAME_RELEASE}
- exit ;;
- RISC*:Mach:*:*)
- echo mips-dec-mach_bsd4.3
- exit ;;
- RISC*:ULTRIX:*:*)
- echo mips-dec-ultrix${UNAME_RELEASE}
- exit ;;
- VAX*:ULTRIX*:*:*)
- echo vax-dec-ultrix${UNAME_RELEASE}
- exit ;;
- 2020:CLIX:*:* | 2430:CLIX:*:*)
- echo clipper-intergraph-clix${UNAME_RELEASE}
- exit ;;
- mips:*:*:UMIPS | mips:*:*:RISCos)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
-#ifdef __cplusplus
-#include <stdio.h> /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
- #if defined (host_mips) && defined (MIPSEB)
- #if defined (SYSTYPE_SYSV)
- printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_SVR4)
- printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
- printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
- #endif
- #endif
- exit (-1);
- }
-EOF
- $CC_FOR_BUILD -o $dummy $dummy.c &&
- dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
- SYSTEM_NAME=`$dummy $dummyarg` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo mips-mips-riscos${UNAME_RELEASE}
- exit ;;
- Motorola:PowerMAX_OS:*:*)
- echo powerpc-motorola-powermax
- exit ;;
- Motorola:*:4.3:PL8-*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:Power_UNIX:*:*)
- echo powerpc-harris-powerunix
- exit ;;
- m88k:CX/UX:7*:*)
- echo m88k-harris-cxux7
- exit ;;
- m88k:*:4*:R4*)
- echo m88k-motorola-sysv4
- exit ;;
- m88k:*:3*:R3*)
- echo m88k-motorola-sysv3
- exit ;;
- AViiON:dgux:*:*)
- # DG/UX returns AViiON for all architectures
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
- then
- if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
- [ ${TARGET_BINARY_INTERFACE}x = x ]
- then
- echo m88k-dg-dgux${UNAME_RELEASE}
- else
- echo m88k-dg-dguxbcs${UNAME_RELEASE}
- fi
- else
- echo i586-dg-dgux${UNAME_RELEASE}
- fi
- exit ;;
- M88*:DolphinOS:*:*) # DolphinOS (SVR3)
- echo m88k-dolphin-sysv3
- exit ;;
- M88*:*:R3*:*)
- # Delta 88k system running SVR3
- echo m88k-motorola-sysv3
- exit ;;
- XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
- echo m88k-tektronix-sysv3
- exit ;;
- Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
- echo m68k-tektronix-bsd
- exit ;;
- *:IRIX*:*:*)
- echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
- exit ;;
- ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
- echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
- exit ;; # Note that: echo "'`uname -s`'" gives 'AIX '
- i*86:AIX:*:*)
- echo i386-ibm-aix
- exit ;;
- ia64:AIX:*:*)
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
- fi
- echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
- exit ;;
- *:AIX:2:3)
- if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #include <sys/systemcfg.h>
-
- main()
- {
- if (!__power_pc())
- exit(1);
- puts("powerpc-ibm-aix3.2.5");
- exit(0);
- }
-EOF
- if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
- then
- echo "$SYSTEM_NAME"
- else
- echo rs6000-ibm-aix3.2.5
- fi
- elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
- echo rs6000-ibm-aix3.2.4
- else
- echo rs6000-ibm-aix3.2
- fi
- exit ;;
- *:AIX:*:[456])
- IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
- if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
- IBM_ARCH=rs6000
- else
- IBM_ARCH=powerpc
- fi
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
- fi
- echo ${IBM_ARCH}-ibm-aix${IBM_REV}
- exit ;;
- *:AIX:*:*)
- echo rs6000-ibm-aix
- exit ;;
- ibmrt:4.4BSD:*|romp-ibm:BSD:*)
- echo romp-ibm-bsd4.4
- exit ;;
- ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
- echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to
- exit ;; # report: romp-ibm BSD 4.3
- *:BOSX:*:*)
- echo rs6000-bull-bosx
- exit ;;
- DPX/2?00:B.O.S.:*:*)
- echo m68k-bull-sysv3
- exit ;;
- 9000/[34]??:4.3bsd:1.*:*)
- echo m68k-hp-bsd
- exit ;;
- hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
- echo m68k-hp-bsd4.4
- exit ;;
- 9000/[34678]??:HP-UX:*:*)
- HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
- case "${UNAME_MACHINE}" in
- 9000/31? ) HP_ARCH=m68000 ;;
- 9000/[34]?? ) HP_ARCH=m68k ;;
- 9000/[678][0-9][0-9])
- if [ -x /usr/bin/getconf ]; then
- sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
- sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
- case "${sc_cpu_version}" in
- 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
- 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
- 532) # CPU_PA_RISC2_0
- case "${sc_kernel_bits}" in
- 32) HP_ARCH="hppa2.0n" ;;
- 64) HP_ARCH="hppa2.0w" ;;
- '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20
- esac ;;
- esac
- fi
- if [ "${HP_ARCH}" = "" ]; then
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
-
- #define _HPUX_SOURCE
- #include <stdlib.h>
- #include <unistd.h>
-
- int main ()
- {
- #if defined(_SC_KERNEL_BITS)
- long bits = sysconf(_SC_KERNEL_BITS);
- #endif
- long cpu = sysconf (_SC_CPU_VERSION);
-
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
- case CPU_PA_RISC2_0:
- #if defined(_SC_KERNEL_BITS)
- switch (bits)
- {
- case 64: puts ("hppa2.0w"); break;
- case 32: puts ("hppa2.0n"); break;
- default: puts ("hppa2.0"); break;
- } break;
- #else /* !defined(_SC_KERNEL_BITS) */
- puts ("hppa2.0"); break;
- #endif
- default: puts ("hppa1.0"); break;
- }
- exit (0);
- }
-EOF
- (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
- test -z "$HP_ARCH" && HP_ARCH=hppa
- fi ;;
- esac
- if [ ${HP_ARCH} = "hppa2.0w" ]
- then
- eval $set_cc_for_build
-
- # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
- # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler
- # generating 64-bit code. GNU and HP use different nomenclature:
- #
- # $ CC_FOR_BUILD=cc ./config.guess
- # => hppa2.0w-hp-hpux11.23
- # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
- # => hppa64-hp-hpux11.23
-
- if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
- grep -q __LP64__
- then
- HP_ARCH="hppa2.0w"
- else
- HP_ARCH="hppa64"
- fi
- fi
- echo ${HP_ARCH}-hp-hpux${HPUX_REV}
- exit ;;
- ia64:HP-UX:*:*)
- HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
- echo ia64-hp-hpux${HPUX_REV}
- exit ;;
- 3050*:HI-UX:*:*)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #include <unistd.h>
- int
- main ()
- {
- long cpu = sysconf (_SC_CPU_VERSION);
- /* The order matters, because CPU_IS_HP_MC68K erroneously returns
- true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
- results, however. */
- if (CPU_IS_PA_RISC (cpu))
- {
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
- default: puts ("hppa-hitachi-hiuxwe2"); break;
- }
- }
- else if (CPU_IS_HP_MC68K (cpu))
- puts ("m68k-hitachi-hiuxwe2");
- else puts ("unknown-hitachi-hiuxwe2");
- exit (0);
- }
-EOF
- $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo unknown-hitachi-hiuxwe2
- exit ;;
- 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
- echo hppa1.1-hp-bsd
- exit ;;
- 9000/8??:4.3bsd:*:*)
- echo hppa1.0-hp-bsd
- exit ;;
- *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
- echo hppa1.0-hp-mpeix
- exit ;;
- hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
- echo hppa1.1-hp-osf
- exit ;;
- hp8??:OSF1:*:*)
- echo hppa1.0-hp-osf
- exit ;;
- i*86:OSF1:*:*)
- if [ -x /usr/sbin/sysversion ] ; then
- echo ${UNAME_MACHINE}-unknown-osf1mk
- else
- echo ${UNAME_MACHINE}-unknown-osf1
- fi
- exit ;;
- parisc*:Lites*:*:*)
- echo hppa1.1-hp-lites
- exit ;;
- C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
- echo c1-convex-bsd
- exit ;;
- C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
- echo c34-convex-bsd
- exit ;;
- C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
- echo c38-convex-bsd
- exit ;;
- C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
- echo c4-convex-bsd
- exit ;;
- CRAY*Y-MP:*:*:*)
- echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*[A-Z]90:*:*:*)
- echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
- | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
- -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
- -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*TS:*:*:*)
- echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*T3E:*:*:*)
- echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*SV1:*:*:*)
- echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- *:UNICOS/mp:*:*)
- echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
- FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
- FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
- echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- 5000:UNIX_System_V:4.*:*)
- FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
- echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
- echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
- exit ;;
- sparc*:BSD/OS:*:*)
- echo sparc-unknown-bsdi${UNAME_RELEASE}
- exit ;;
- *:BSD/OS:*:*)
- echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
- exit ;;
- *:FreeBSD:*:*)
- case ${UNAME_MACHINE} in
- pc98)
- echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
- amd64)
- echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
- *)
- echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
- esac
- exit ;;
- i*:CYGWIN*:*)
- echo ${UNAME_MACHINE}-pc-cygwin
- exit ;;
- *:MINGW*:*)
- echo ${UNAME_MACHINE}-pc-mingw32
- exit ;;
- i*:windows32*:*)
- # uname -m includes "-pc" on this system.
- echo ${UNAME_MACHINE}-mingw32
- exit ;;
- i*:PW*:*)
- echo ${UNAME_MACHINE}-pc-pw32
- exit ;;
- *:Interix*:[3456]*)
- case ${UNAME_MACHINE} in
- x86)
- echo i586-pc-interix${UNAME_RELEASE}
- exit ;;
- EM64T | authenticamd | genuineintel)
- echo x86_64-unknown-interix${UNAME_RELEASE}
- exit ;;
- IA64)
- echo ia64-unknown-interix${UNAME_RELEASE}
- exit ;;
- esac ;;
- [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
- echo i${UNAME_MACHINE}-pc-mks
- exit ;;
- 8664:Windows_NT:*)
- echo x86_64-pc-mks
- exit ;;
- i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
- # How do we know it's Interix rather than the generic POSIX subsystem?
- # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
- # UNAME_MACHINE based on the output of uname instead of i386?
- echo i586-pc-interix
- exit ;;
- i*:UWIN*:*)
- echo ${UNAME_MACHINE}-pc-uwin
- exit ;;
- amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
- echo x86_64-unknown-cygwin
- exit ;;
- p*:CYGWIN*:*)
- echo powerpcle-unknown-cygwin
- exit ;;
- prep*:SunOS:5.*:*)
- echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- *:GNU:*:*)
- # the GNU system
- echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
- exit ;;
- *:GNU/*:*:*)
- # other systems with GNU libc and userland
- echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
- exit ;;
- i*86:Minix:*:*)
- echo ${UNAME_MACHINE}-pc-minix
- exit ;;
- arm*:Linux:*:*)
- eval $set_cc_for_build
- if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ARM_EABI__
- then
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- else
- echo ${UNAME_MACHINE}-unknown-linux-gnueabi
- fi
- exit ;;
- avr32*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- cris:Linux:*:*)
- echo cris-axis-linux-gnu
- exit ;;
- crisv32:Linux:*:*)
- echo crisv32-axis-linux-gnu
- exit ;;
- frv:Linux:*:*)
- echo frv-unknown-linux-gnu
- exit ;;
- ia64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- m32r*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- m68*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- mips:Linux:*:* | mips64:Linux:*:*)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #undef CPU
- #undef ${UNAME_MACHINE}
- #undef ${UNAME_MACHINE}el
- #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
- CPU=${UNAME_MACHINE}el
- #else
- #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
- CPU=${UNAME_MACHINE}
- #else
- CPU=
- #endif
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
- /^CPU/{
- s: ::g
- p
- }'`"
- test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
- ;;
- or32:Linux:*:*)
- echo or32-unknown-linux-gnu
- exit ;;
- ppc:Linux:*:*)
- echo powerpc-unknown-linux-gnu
- exit ;;
- ppc64:Linux:*:*)
- echo powerpc64-unknown-linux-gnu
- exit ;;
- alpha:Linux:*:*)
- case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
- EV5) UNAME_MACHINE=alphaev5 ;;
- EV56) UNAME_MACHINE=alphaev56 ;;
- PCA56) UNAME_MACHINE=alphapca56 ;;
- PCA57) UNAME_MACHINE=alphapca56 ;;
- EV6) UNAME_MACHINE=alphaev6 ;;
- EV67) UNAME_MACHINE=alphaev67 ;;
- EV68*) UNAME_MACHINE=alphaev68 ;;
- esac
- objdump --private-headers /bin/sh | grep -q ld.so.1
- if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
- echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
- exit ;;
- padre:Linux:*:*)
- echo sparc-unknown-linux-gnu
- exit ;;
- parisc:Linux:*:* | hppa:Linux:*:*)
- # Look for CPU level
- case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
- PA7*) echo hppa1.1-unknown-linux-gnu ;;
- PA8*) echo hppa2.0-unknown-linux-gnu ;;
- *) echo hppa-unknown-linux-gnu ;;
- esac
- exit ;;
- parisc64:Linux:*:* | hppa64:Linux:*:*)
- echo hppa64-unknown-linux-gnu
- exit ;;
- s390:Linux:*:* | s390x:Linux:*:*)
- echo ${UNAME_MACHINE}-ibm-linux
- exit ;;
- sh64*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- sh*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- sparc:Linux:*:* | sparc64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- vax:Linux:*:*)
- echo ${UNAME_MACHINE}-dec-linux-gnu
- exit ;;
- x86_64:Linux:*:*)
- echo x86_64-unknown-linux-gnu
- exit ;;
- xtensa*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- i*86:Linux:*:*)
- # The BFD linker knows what the default object file format is, so
- # first see if it will tell us. cd to the root directory to prevent
- # problems with other programs or directories called `ld' in the path.
- # Set LC_ALL=C to ensure ld outputs messages in English.
- ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
- | sed -ne '/supported targets:/!d
- s/[ ][ ]*/ /g
- s/.*supported targets: *//
- s/ .*//
- p'`
- case "$ld_supported_targets" in
- elf32-i386)
- TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
- ;;
- esac
- # Determine whether the default compiler is a.out or elf
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #include <features.h>
- #ifdef __ELF__
- # ifdef __GLIBC__
- # if __GLIBC__ >= 2
- LIBC=gnu
- # else
- LIBC=gnulibc1
- # endif
- # else
- LIBC=gnulibc1
- # endif
- #else
- #if defined(__INTEL_COMPILER) || defined(__PGI) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
- LIBC=gnu
- #else
- LIBC=gnuaout
- #endif
- #endif
- #ifdef __dietlibc__
- LIBC=dietlibc
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
- /^LIBC/{
- s: ::g
- p
- }'`"
- test x"${LIBC}" != x && {
- echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
- exit
- }
- test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
- ;;
- i*86:DYNIX/ptx:4*:*)
- # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
- # earlier versions are messed up and put the nodename in both
- # sysname and nodename.
- echo i386-sequent-sysv4
- exit ;;
- i*86:UNIX_SV:4.2MP:2.*)
- # Unixware is an offshoot of SVR4, but it has its own version
- # number series starting with 2...
- # I am not positive that other SVR4 systems won't match this,
- # I just have to hope. -- rms.
- # Use sysv4.2uw... so that sysv4* matches it.
- echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
- exit ;;
- i*86:OS/2:*:*)
- # If we were able to find `uname', then EMX Unix compatibility
- # is probably installed.
- echo ${UNAME_MACHINE}-pc-os2-emx
- exit ;;
- i*86:XTS-300:*:STOP)
- echo ${UNAME_MACHINE}-unknown-stop
- exit ;;
- i*86:atheos:*:*)
- echo ${UNAME_MACHINE}-unknown-atheos
- exit ;;
- i*86:syllable:*:*)
- echo ${UNAME_MACHINE}-pc-syllable
- exit ;;
- i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
- echo i386-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- i*86:*DOS:*:*)
- echo ${UNAME_MACHINE}-pc-msdosdjgpp
- exit ;;
- i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
- UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
- if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
- echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
- else
- echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
- fi
- exit ;;
- i*86:*:5:[678]*)
- # UnixWare 7.x, OpenUNIX and OpenServer 6.
- case `/bin/uname -X | grep "^Machine"` in
- *486*) UNAME_MACHINE=i486 ;;
- *Pentium) UNAME_MACHINE=i586 ;;
- *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
- esac
- echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
- exit ;;
- i*86:*:3.2:*)
- if test -f /usr/options/cb.name; then
- UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
- echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
- elif /bin/uname -X 2>/dev/null >/dev/null ; then
- UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
- (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
- (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
- && UNAME_MACHINE=i586
- (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
- && UNAME_MACHINE=i686
- (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
- && UNAME_MACHINE=i686
- echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
- else
- echo ${UNAME_MACHINE}-pc-sysv32
- fi
- exit ;;
- pc:*:*:*)
- # Left here for compatibility:
- # uname -m prints for DJGPP always 'pc', but it prints nothing about
- # the processor, so we play safe by assuming i586.
- # Note: whatever this is, it MUST be the same as what config.sub
- # prints for the "djgpp" host, or else GDB configury will decide that
- # this is a cross-build.
- echo i586-pc-msdosdjgpp
- exit ;;
- Intel:Mach:3*:*)
- echo i386-pc-mach3
- exit ;;
- paragon:*:*:*)
- echo i860-intel-osf1
- exit ;;
- i860:*:4.*:*) # i860-SVR4
- if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
- echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
- else # Add other i860-SVR4 vendors below as they are discovered.
- echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4
- fi
- exit ;;
- mini*:CTIX:SYS*5:*)
- # "miniframe"
- echo m68010-convergent-sysv
- exit ;;
- mc68k:UNIX:SYSTEM5:3.51m)
- echo m68k-convergent-sysv
- exit ;;
- M680?0:D-NIX:5.3:*)
- echo m68k-diab-dnix
- exit ;;
- M68*:*:R3V[5678]*:*)
- test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
- 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
- OS_REL=''
- test -r /etc/.relid \
- && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
- && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
- 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4; exit; } ;;
- NCR*:*:4.2:* | MPRAS*:*:4.2:*)
- OS_REL='.3'
- test -r /etc/.relid \
- && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
- && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
- && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
- m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
- echo m68k-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- mc68030:UNIX_System_V:4.*:*)
- echo m68k-atari-sysv4
- exit ;;
- TSUNAMI:LynxOS:2.*:*)
- echo sparc-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- rs6000:LynxOS:2.*:*)
- echo rs6000-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
- echo powerpc-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- SM[BE]S:UNIX_SV:*:*)
- echo mips-dde-sysv${UNAME_RELEASE}
- exit ;;
- RM*:ReliantUNIX-*:*:*)
- echo mips-sni-sysv4
- exit ;;
- RM*:SINIX-*:*:*)
- echo mips-sni-sysv4
- exit ;;
- *:SINIX-*:*:*)
- if uname -p 2>/dev/null >/dev/null ; then
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- echo ${UNAME_MACHINE}-sni-sysv4
- else
- echo ns32k-sni-sysv
- fi
- exit ;;
- PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
- # says <Richard.M.Bartel@ccMail.Census.GOV>
- echo i586-unisys-sysv4
- exit ;;
- *:UNIX_System_V:4*:FTX*)
- # From Gerald Hewes <hewes@openmarket.com>.
- # How about differentiating between stratus architectures? -djm
- echo hppa1.1-stratus-sysv4
- exit ;;
- *:*:*:FTX*)
- # From seanf@swdc.stratus.com.
- echo i860-stratus-sysv4
- exit ;;
- i*86:VOS:*:*)
- # From Paul.Green@stratus.com.
- echo ${UNAME_MACHINE}-stratus-vos
- exit ;;
- *:VOS:*:*)
- # From Paul.Green@stratus.com.
- echo hppa1.1-stratus-vos
- exit ;;
- mc68*:A/UX:*:*)
- echo m68k-apple-aux${UNAME_RELEASE}
- exit ;;
- news*:NEWS-OS:6*:*)
- echo mips-sony-newsos6
- exit ;;
- R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
- if [ -d /usr/nec ]; then
- echo mips-nec-sysv${UNAME_RELEASE}
- else
- echo mips-unknown-sysv${UNAME_RELEASE}
- fi
- exit ;;
- BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
- echo powerpc-be-beos
- exit ;;
- BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only.
- echo powerpc-apple-beos
- exit ;;
- BePC:BeOS:*:*) # BeOS running on Intel PC compatible.
- echo i586-pc-beos
- exit ;;
- BePC:Haiku:*:*) # Haiku running on Intel PC compatible.
- echo i586-pc-haiku
- exit ;;
- SX-4:SUPER-UX:*:*)
- echo sx4-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-5:SUPER-UX:*:*)
- echo sx5-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-6:SUPER-UX:*:*)
- echo sx6-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-7:SUPER-UX:*:*)
- echo sx7-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-8:SUPER-UX:*:*)
- echo sx8-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-8R:SUPER-UX:*:*)
- echo sx8r-nec-superux${UNAME_RELEASE}
- exit ;;
- Power*:Rhapsody:*:*)
- echo powerpc-apple-rhapsody${UNAME_RELEASE}
- exit ;;
- *:Rhapsody:*:*)
- echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
- exit ;;
- *:Darwin:*:*)
- UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
- case $UNAME_PROCESSOR in
- unknown) UNAME_PROCESSOR=powerpc ;;
- esac
- echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
- exit ;;
- *:procnto*:*:* | *:QNX:[0123456789]*:*)
- UNAME_PROCESSOR=`uname -p`
- if test "$UNAME_PROCESSOR" = "x86"; then
- UNAME_PROCESSOR=i386
- UNAME_MACHINE=pc
- fi
- echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
- exit ;;
- *:QNX:*:4*)
- echo i386-pc-qnx
- exit ;;
- NSE-?:NONSTOP_KERNEL:*:*)
- echo nse-tandem-nsk${UNAME_RELEASE}
- exit ;;
- NSR-?:NONSTOP_KERNEL:*:*)
- echo nsr-tandem-nsk${UNAME_RELEASE}
- exit ;;
- *:NonStop-UX:*:*)
- echo mips-compaq-nonstopux
- exit ;;
- BS2000:POSIX*:*:*)
- echo bs2000-siemens-sysv
- exit ;;
- DS/*:UNIX_System_V:*:*)
- echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
- exit ;;
- *:Plan9:*:*)
- # "uname -m" is not consistent, so use $cputype instead. 386
- # is converted to i386 for consistency with other x86
- # operating systems.
- if test "$cputype" = "386"; then
- UNAME_MACHINE=i386
- else
- UNAME_MACHINE="$cputype"
- fi
- echo ${UNAME_MACHINE}-unknown-plan9
- exit ;;
- *:TOPS-10:*:*)
- echo pdp10-unknown-tops10
- exit ;;
- *:TENEX:*:*)
- echo pdp10-unknown-tenex
- exit ;;
- KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
- echo pdp10-dec-tops20
- exit ;;
- XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
- echo pdp10-xkl-tops20
- exit ;;
- *:TOPS-20:*:*)
- echo pdp10-unknown-tops20
- exit ;;
- *:ITS:*:*)
- echo pdp10-unknown-its
- exit ;;
- SEI:*:*:SEIUX)
- echo mips-sei-seiux${UNAME_RELEASE}
- exit ;;
- *:DragonFly:*:*)
- echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
- exit ;;
- *:*VMS:*:*)
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- case "${UNAME_MACHINE}" in
- A*) echo alpha-dec-vms ; exit ;;
- I*) echo ia64-dec-vms ; exit ;;
- V*) echo vax-dec-vms ; exit ;;
- esac ;;
- *:XENIX:*:SysV)
- echo i386-pc-xenix
- exit ;;
- i*86:skyos:*:*)
- echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
- exit ;;
- i*86:rdos:*:*)
- echo ${UNAME_MACHINE}-pc-rdos
- exit ;;
- i*86:AROS:*:*)
- echo ${UNAME_MACHINE}-pc-aros
- exit ;;
-esac
-
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
- /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed,
- I don't know.... */
- printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
- printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
- "4"
-#else
- ""
-#endif
- ); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
- printf ("arm-acorn-riscix\n"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
- printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
- int version;
- version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
- if (version < 4)
- printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
- else
- printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
- exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
- printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
- printf ("ns32k-encore-mach\n"); exit (0);
-#else
- printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
- printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
- printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
- printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
- struct utsname un;
-
- uname(&un);
-
- if (strncmp(un.version, "V2", 2) == 0) {
- printf ("i386-sequent-ptx2\n"); exit (0);
- }
- if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
- printf ("i386-sequent-ptx1\n"); exit (0);
- }
- printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-# include <sys/param.h>
-# if defined (BSD)
-# if BSD == 43
- printf ("vax-dec-bsd4.3\n"); exit (0);
-# else
-# if BSD == 199006
- printf ("vax-dec-bsd4.3reno\n"); exit (0);
-# else
- printf ("vax-dec-bsd\n"); exit (0);
-# endif
-# endif
-# else
- printf ("vax-dec-bsd\n"); exit (0);
-# endif
-# else
- printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
- printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
- exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
- { echo "$SYSTEM_NAME"; exit; }
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
- case `getsysinfo -f cpu_type` in
- c1*)
- echo c1-convex-bsd
- exit ;;
- c2*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- c34*)
- echo c34-convex-bsd
- exit ;;
- c38*)
- echo c38-convex-bsd
- exit ;;
- c4*)
- echo c4-convex-bsd
- exit ;;
- esac
-fi
-
-cat >&2 <<EOF
-$0: unable to guess system type
-
-This script, last modified $timestamp, has failed to recognize
-the operating system you are using. It is advised that you
-download the most up to date version of the config scripts from
-
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
-and
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
-
-If the version you run ($0) is already up to date, please
-send the following data and any information you think might be
-pertinent to <config-patches@gnu.org> in order to provide the needed
-information to handle your system.
-
-config.guess timestamp = $timestamp
-
-uname -m = `(uname -m) 2>/dev/null || echo unknown`
-uname -r = `(uname -r) 2>/dev/null || echo unknown`
-uname -s = `(uname -s) 2>/dev/null || echo unknown`
-uname -v = `(uname -v) 2>/dev/null || echo unknown`
-
-/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
-/bin/uname -X = `(/bin/uname -X) 2>/dev/null`
-
-hostinfo = `(hostinfo) 2>/dev/null`
-/bin/universe = `(/bin/universe) 2>/dev/null`
-/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null`
-/bin/arch = `(/bin/arch) 2>/dev/null`
-/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null`
-/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
-
-UNAME_MACHINE = ${UNAME_MACHINE}
-UNAME_RELEASE = ${UNAME_RELEASE}
-UNAME_SYSTEM = ${UNAME_SYSTEM}
-UNAME_VERSION = ${UNAME_VERSION}
-EOF
-
-exit 1
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "timestamp='"
-# time-stamp-format: "%:y-%02m-%02d"
-# time-stamp-end: "'"
-# End:
+++ /dev/null
-/* config.h. Generated by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if the compiler supports __builtin_ctz and friends. */
-#define HAVE_BUILTIN_CTZ 1
-
-/* Define to 1 if the compiler supports __builtin_expect. */
-#define HAVE_BUILTIN_EXPECT 1
-
-/* Define to 1 if you have the <byteswap.h> header file. */
-#define HAVE_BYTESWAP_H 1
-
-/* Use the gflags package for command-line parsing. */
-/* #undef HAVE_GFLAGS */
-
-/* Defined when Google Test is available. */
-/* #undef HAVE_GTEST */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the `fastlz' library (-lfastlz). */
-/* #undef HAVE_LIBFASTLZ */
-
-/* Define to 1 if you have the `lzf' library (-llzf). */
-/* #undef HAVE_LIBLZF */
-
-/* Define to 1 if you have the `lzo2' library (-llzo2). */
-/* #undef HAVE_LIBLZO2 */
-
-/* Define to 1 if you have the `quicklz' library (-lquicklz). */
-/* #undef HAVE_LIBQUICKLZ */
-
-/* Define to 1 if you have the `z' library (-lz). */
-// #define HAVE_LIBZ 1
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the <stddef.h> header file. */
-#define HAVE_STDDEF_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/byteswap.h> header file. */
-/* #undef HAVE_SYS_BYTESWAP_H */
-
-/* Define to 1 if you have the <sys/endian.h> header file. */
-/* #undef HAVE_SYS_ENDIAN_H */
-
-/* Define to 1 if you have the <sys/mman.h> header file. */
-#define HAVE_SYS_MMAN_H 1
-
-/* Define to 1 if you have the <sys/resource.h> header file. */
-#define HAVE_SYS_RESOURCE_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the <windows.h> header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Name of package */
-#define PACKAGE "snappy"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "snappy"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "snappy 1.0.5"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "snappy"
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.0.5"
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "1.0.5"
-
-/* Define to 1 if your processor stores words with the most significant byte
- first (like Motorola and SPARC, unlike Intel and VAX). */
-/* #undef WORDS_BIGENDIAN */
+++ /dev/null
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if the compiler supports __builtin_ctz and friends. */
-#undef HAVE_BUILTIN_CTZ
-
-/* Define to 1 if the compiler supports __builtin_expect. */
-#undef HAVE_BUILTIN_EXPECT
-
-/* Define to 1 if you have the <byteswap.h> header file. */
-#undef HAVE_BYTESWAP_H
-
-/* Use the gflags package for command-line parsing. */
-#undef HAVE_GFLAGS
-
-/* Defined when Google Test is available. */
-#undef HAVE_GTEST
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the `fastlz' library (-lfastlz). */
-#undef HAVE_LIBFASTLZ
-
-/* Define to 1 if you have the `lzf' library (-llzf). */
-#undef HAVE_LIBLZF
-
-/* Define to 1 if you have the `lzo2' library (-llzo2). */
-#undef HAVE_LIBLZO2
-
-/* Define to 1 if you have the `quicklz' library (-lquicklz). */
-#undef HAVE_LIBQUICKLZ
-
-/* Define to 1 if you have the `z' library (-lz). */
-#undef HAVE_LIBZ
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the <stddef.h> header file. */
-#undef HAVE_STDDEF_H
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the <sys/byteswap.h> header file. */
-#undef HAVE_SYS_BYTESWAP_H
-
-/* Define to 1 if you have the <sys/endian.h> header file. */
-#undef HAVE_SYS_ENDIAN_H
-
-/* Define to 1 if you have the <sys/mman.h> header file. */
-#undef HAVE_SYS_MMAN_H
-
-/* Define to 1 if you have the <sys/resource.h> header file. */
-#undef HAVE_SYS_RESOURCE_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to 1 if you have the <windows.h> header file. */
-#undef HAVE_WINDOWS_H
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Version number of package */
-#undef VERSION
-
-/* Define to 1 if your processor stores words with the most significant byte
- first (like Motorola and SPARC, unlike Intel and VAX). */
-#undef WORDS_BIGENDIAN
+++ /dev/null
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-
-It was created by snappy configure 1.0.5, which was
-generated by GNU Autoconf 2.59. Invocation command line was
-
- $ ./configure --disable-shared --with-pic CXX=/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp --no-create --no-recursion
-
-## --------- ##
-## Platform. ##
-## --------- ##
-
-hostname = dev3936.snc6.facebook.com
-uname -m = x86_64
-uname -r = 2.6.38.4-49_fbk20_00135_g561dc87
-uname -s = Linux
-uname -v = #49 SMP Mon Nov 28 14:05:54 PST 2011
-
-/usr/bin/uname -p = unknown
-/bin/uname -X = unknown
-
-/bin/arch = x86_64
-/usr/bin/arch -k = unknown
-/usr/convex/getsysinfo = unknown
-hostinfo = unknown
-/bin/machine = unknown
-/usr/bin/oslevel = unknown
-/bin/universe = unknown
-
-PATH: /usr/local/jdk-6u7-32//bin
-PATH: /home/dhruba/maven/bin
-PATH: /home/dhruba/bin/
-PATH: /home/dhruba/external/apache-ant-1.8.1/bin/
-PATH: /usr/local/java/bin/
-PATH: ~/pl/bin
-PATH: ~/maven/bin
-PATH: /home/dhruba/apache-ant-1.7.0/bin
-PATH: /usr/kerberos/bin
-PATH: /opt/local/bin
-PATH: /usr/local/bin
-PATH: /bin
-PATH: /usr/bin
-PATH: /usr/facebook/scripts
-PATH: /home/engshare/devtools/facebook/bin
-PATH: /home/engshare/svnroot/tfb/trunk/www/scripts/bin
-PATH: /home/engshare/admin/scripts/git
-PATH: /home/engshare/admin/scripts
-PATH: /home/dhruba/www/scripts/bin
-PATH: /home/dhruba/bin
-
-
-## ----------- ##
-## Core tests. ##
-## ----------- ##
-
-configure:1420: checking for a BSD-compatible install
-configure:1475: result: /usr/bin/install -c
-configure:1486: checking whether build environment is sane
-configure:1529: result: yes
-configure:1594: checking for gawk
-configure:1610: found /bin/gawk
-configure:1620: result: gawk
-configure:1630: checking whether make sets $(MAKE)
-configure:1650: result: yes
-configure:1915: checking for C++ compiler version
-configure:1918: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp --version </dev/null >&5
-g++ (GCC) 4.6.2 20111027 (Red Hat 4.6.2-1)
-Copyright (C) 2011 Free Software Foundation, Inc.
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-configure:1921: $? = 0
-configure:1923: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -v </dev/null >&5
-Using built-in specs.
-COLLECT_GCC=/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/g++
-COLLECT_LTO_WRAPPER=/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../libexec/gcc/x86_64-redhat-linux-gnu/4.6.2/lto-wrapper
-Target: x86_64-redhat-linux-gnu
-Configured with: /home/engshare/third-party/src/gcc/gcc-4.6.2/gcc-4.6.2-20111027/configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --target=x86_64-redhat-linux-gnu --prefix=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc --exec-prefix=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc --bindir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin --sbindir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/sbin --sysconfdir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/etc --datadir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/share --includedir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/include --libdir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/lib --libexecdir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/libexec --localstatedir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/var --sharedstatedir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/com --mandir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/share/man --infodir=/home/engshare/third-party/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/share/info --with-gmp=/home/engshare/third-party/centos5.2-native/gmp/gmp-5.0.1/da39a3e --with-mpfr=/home/engshare/third-party/centos5.2-native/mpfr/mpfr-3.0.0/c68f0aa --with-mpc=/home/engshare/third-party/centos5.2-native/mpc/mpc-0.8.2/18cfc0e --with-ppl=/home/engshare/third-party/centos5.2-native/ppl/ppl-0.10/c68f0aa --with-cloog=/home/engshare/third-party/centos5.2-native/cloog/cloog-0.15.7/ab7be4d --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-languages=c,c++ --disable-libgcj --disable-libgfortran --enable-linker-build-id --with-gnu-as --with-gnu-ld --with-host-libstdcxx='-L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 -lstdc++'
-Thread model: posix
-gcc version 4.6.2 20111027 (Red Hat 4.6.2-1) (GCC)
-COMPILER_PATH=/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../libexec/gcc/x86_64-redhat-linux-gnu/4.6.2/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../libexec/gcc/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/binutils/binutils-2.21.1/da39a3e/bin/
-LIBRARY_PATH=/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/../lib64/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/lib64/../lib64/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/../../../../lib64/:/lib/../lib64/:/usr/lib/../lib64/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/lib64/:/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/../../../:/lib/:/usr/lib/
-COLLECT_GCC_OPTIONS='-nostdinc' '-I' './snappy' '-I' '/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include' '-std=gnu++0x' '-I' './thrift' '-I' './thrift/gen-cpp' '-I' './thrift/lib/cpp' '-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64'
- /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../libexec/gcc/x86_64-redhat-linux-gnu/4.6.2/collect2 --no-add-needed --eh-frame-hdr -m elf_x86_64 --hash-style=gnu -dynamic-linker /lib64/ld-linux-x86-64.so.2 /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/../lib64/crt1.o /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/../lib64/crti.o /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/crtbegin.o -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2 -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/../lib64 -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/lib64/../lib64 -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/libgcc/libgcc-4.6.2/b4e37bb/lib64 -L/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/../../.. --dynamic-linker /usr/local/fbcode/gcc-4.6.2-glibc-2.13/lib/ld-linux-x86-64.so.2 -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2/cc6c9dc/bin/../lib/gcc/x86_64-redhat-linux-gnu/4.6.2/crtend.o /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/../lib64/crtn.o
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/lib/../lib64/crt1.o: In function `_start':
-/home/engshare/third-party/src/glibc/glibc-2.13/glibc-2.13/csu/../sysdeps/x86_64/elf/start.S:109: undefined reference to `main'
-collect2: ld returned 1 exit status
-configure:1926: $? = 1
-configure:1928: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -V </dev/null >&5
-g++: error: unrecognized option '-V'
-configure:1931: $? = 1
-configure:1954: checking for C++ compiler default output file name
-configure:1957: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp conftest.cc >&5
-configure:1960: $? = 0
-configure:2006: result: a.out
-configure:2011: checking whether the C++ compiler works
-configure:2017: ./a.out
-configure:2020: $? = 0
-configure:2037: result: yes
-configure:2044: checking whether we are cross compiling
-configure:2046: result: no
-configure:2049: checking for suffix of executables
-configure:2051: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest conftest.cc >&5
-configure:2054: $? = 0
-configure:2079: result:
-configure:2085: checking for suffix of object files
-configure:2106: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c conftest.cc >&5
-configure:2109: $? = 0
-configure:2131: result: o
-configure:2135: checking whether we are using the GNU C++ compiler
-configure:2159: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c conftest.cc >&5
-configure:2165: $? = 0
-configure:2169: test -z
- || test ! -s conftest.err
-configure:2172: $? = 0
-configure:2175: test -s conftest.o
-configure:2178: $? = 0
-configure:2191: result: yes
-configure:2197: checking whether /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp accepts -g
-configure:2218: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g conftest.cc >&5
-configure:2224: $? = 0
-configure:2228: test -z
- || test ! -s conftest.err
-configure:2231: $? = 0
-configure:2234: test -s conftest.o
-configure:2237: $? = 0
-configure:2248: result: yes
-configure:2290: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:2296: $? = 0
-configure:2300: test -z
- || test ! -s conftest.err
-configure:2303: $? = 0
-configure:2306: test -s conftest.o
-configure:2309: $? = 0
-configure:2335: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc: In function 'int main()':
-conftest.cc:15:9: error: 'exit' was not declared in this scope
-configure:2341: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| /* end confdefs.h. */
-|
-| int
-| main ()
-| {
-| exit (42);
-| ;
-| return 0;
-| }
-configure:2290: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc:11:40: error: 'void std::exit(int)' should have been declared inside 'std'
-configure:2296: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| /* end confdefs.h. */
-| extern "C" void std::exit (int) throw (); using std::exit;
-| #include <stdlib.h>
-| int
-| main ()
-| {
-| exit (42);
-| ;
-| return 0;
-| }
-configure:2290: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc:11:31: error: 'void std::exit(int)' should have been declared inside 'std'
-In file included from conftest.cc:12:0:
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/glibc/glibc-2.13/5c2e919/include/stdlib.h:544:70: error: declaration of 'void std::exit(int) throw ()' has a different exception specifier
-conftest.cc:11:17: error: from previous declaration 'void std::exit(int)'
-configure:2296: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| /* end confdefs.h. */
-| extern "C" void std::exit (int); using std::exit;
-| #include <stdlib.h>
-| int
-| main ()
-| {
-| exit (42);
-| ;
-| return 0;
-| }
-configure:2290: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:2296: $? = 0
-configure:2300: test -z
- || test ! -s conftest.err
-configure:2303: $? = 0
-configure:2306: test -s conftest.o
-configure:2309: $? = 0
-configure:2335: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:2341: $? = 0
-configure:2345: test -z
- || test ! -s conftest.err
-configure:2348: $? = 0
-configure:2351: test -s conftest.o
-configure:2354: $? = 0
-configure:2388: checking for style of include used by make
-configure:2416: result: GNU
-configure:2444: checking dependency style of /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp
-configure:2534: result: gcc3
-configure:2558: checking whether byte ordering is bigendian
-configure:2585: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:2591: $? = 0
-configure:2595: test -z
- || test ! -s conftest.err
-configure:2598: $? = 0
-configure:2601: test -s conftest.o
-configure:2604: $? = 0
-configure:2628: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc: In function 'int main()':
-conftest.cc:21:6: error: 'big' was not declared in this scope
-conftest.cc:21:10: error: expected ';' before 'endian'
-configure:2634: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| /* end confdefs.h. */
-| #include <sys/types.h>
-| #include <sys/param.h>
-|
-| int
-| main ()
-| {
-| #if BYTE_ORDER != BIG_ENDIAN
-| not big endian
-| #endif
-|
-| ;
-| return 0;
-| }
-configure:2769: result: no
-configure:2793: checking how to run the C++ preprocessor
-configure:2824: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-configure:2830: $? = 0
-configure:2862: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-conftest.cc:14:28: fatal error: ac_nonexistent.h: No such file or directory
-compilation terminated.
-configure:2868: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| /* end confdefs.h. */
-| #include <ac_nonexistent.h>
-configure:2907: result: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E
-configure:2931: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-configure:2937: $? = 0
-configure:2969: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-conftest.cc:14:28: fatal error: ac_nonexistent.h: No such file or directory
-compilation terminated.
-configure:2975: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| /* end confdefs.h. */
-| #include <ac_nonexistent.h>
-configure:3019: checking for egrep
-configure:3029: result: grep -E
-configure:3034: checking for ANSI C header files
-configure:3059: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3065: $? = 0
-configure:3069: test -z
- || test ! -s conftest.err
-configure:3072: $? = 0
-configure:3075: test -s conftest.o
-configure:3078: $? = 0
-configure:3167: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc >&5
-configure:3170: $? = 0
-configure:3172: ./conftest
-configure:3175: $? = 0
-configure:3190: result: yes
-configure:3214: checking for sys/types.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for sys/stat.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for stdlib.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for string.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for memory.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for strings.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for inttypes.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for stdint.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3214: checking for unistd.h
-configure:3230: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3236: $? = 0
-configure:3240: test -z
- || test ! -s conftest.err
-configure:3243: $? = 0
-configure:3246: test -s conftest.o
-configure:3249: $? = 0
-configure:3260: result: yes
-configure:3284: checking for stdint.h
-configure:3289: result: yes
-configure:3293: checking stddef.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3311: $? = 0
-configure:3315: test -z
- || test ! -s conftest.err
-configure:3318: $? = 0
-configure:3321: test -s conftest.o
-configure:3324: $? = 0
-configure:3334: result: yes
-configure:3338: checking stddef.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-configure:3354: $? = 0
-configure:3374: result: yes
-configure:3409: checking for stddef.h
-configure:3416: result: yes
-configure:3293: checking sys/mman.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3311: $? = 0
-configure:3315: test -z
- || test ! -s conftest.err
-configure:3318: $? = 0
-configure:3321: test -s conftest.o
-configure:3324: $? = 0
-configure:3334: result: yes
-configure:3338: checking sys/mman.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-configure:3354: $? = 0
-configure:3374: result: yes
-configure:3409: checking for sys/mman.h
-configure:3416: result: yes
-configure:3293: checking sys/resource.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3311: $? = 0
-configure:3315: test -z
- || test ! -s conftest.err
-configure:3318: $? = 0
-configure:3321: test -s conftest.o
-configure:3324: $? = 0
-configure:3334: result: yes
-configure:3338: checking sys/resource.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-configure:3354: $? = 0
-configure:3374: result: yes
-configure:3409: checking for sys/resource.h
-configure:3416: result: yes
-configure:3293: checking windows.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc:62:21: fatal error: windows.h: No such file or directory
-compilation terminated.
-configure:3311: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| /* end confdefs.h. */
-| #include <stdio.h>
-| #if HAVE_SYS_TYPES_H
-| # include <sys/types.h>
-| #endif
-| #if HAVE_SYS_STAT_H
-| # include <sys/stat.h>
-| #endif
-| #if STDC_HEADERS
-| # include <stdlib.h>
-| # include <stddef.h>
-| #else
-| # if HAVE_STDLIB_H
-| # include <stdlib.h>
-| # endif
-| #endif
-| #if HAVE_STRING_H
-| # if !STDC_HEADERS && HAVE_MEMORY_H
-| # include <memory.h>
-| # endif
-| # include <string.h>
-| #endif
-| #if HAVE_STRINGS_H
-| # include <strings.h>
-| #endif
-| #if HAVE_INTTYPES_H
-| # include <inttypes.h>
-| #else
-| # if HAVE_STDINT_H
-| # include <stdint.h>
-| # endif
-| #endif
-| #if HAVE_UNISTD_H
-| # include <unistd.h>
-| #endif
-| #include <windows.h>
-configure:3334: result: no
-configure:3338: checking windows.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-conftest.cc:28:21: fatal error: windows.h: No such file or directory
-compilation terminated.
-configure:3354: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| /* end confdefs.h. */
-| #include <windows.h>
-configure:3374: result: no
-configure:3409: checking for windows.h
-configure:3416: result: no
-configure:3293: checking byteswap.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3311: $? = 0
-configure:3315: test -z
- || test ! -s conftest.err
-configure:3318: $? = 0
-configure:3321: test -s conftest.o
-configure:3324: $? = 0
-configure:3334: result: yes
-configure:3338: checking byteswap.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-configure:3354: $? = 0
-configure:3374: result: yes
-configure:3409: checking for byteswap.h
-configure:3416: result: yes
-configure:3293: checking sys/byteswap.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc:63:26: fatal error: sys/byteswap.h: No such file or directory
-compilation terminated.
-configure:3311: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| /* end confdefs.h. */
-| #include <stdio.h>
-| #if HAVE_SYS_TYPES_H
-| # include <sys/types.h>
-| #endif
-| #if HAVE_SYS_STAT_H
-| # include <sys/stat.h>
-| #endif
-| #if STDC_HEADERS
-| # include <stdlib.h>
-| # include <stddef.h>
-| #else
-| # if HAVE_STDLIB_H
-| # include <stdlib.h>
-| # endif
-| #endif
-| #if HAVE_STRING_H
-| # if !STDC_HEADERS && HAVE_MEMORY_H
-| # include <memory.h>
-| # endif
-| # include <string.h>
-| #endif
-| #if HAVE_STRINGS_H
-| # include <strings.h>
-| #endif
-| #if HAVE_INTTYPES_H
-| # include <inttypes.h>
-| #else
-| # if HAVE_STDINT_H
-| # include <stdint.h>
-| # endif
-| #endif
-| #if HAVE_UNISTD_H
-| # include <unistd.h>
-| #endif
-| #include <sys/byteswap.h>
-configure:3334: result: no
-configure:3338: checking sys/byteswap.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-conftest.cc:29:26: fatal error: sys/byteswap.h: No such file or directory
-compilation terminated.
-configure:3354: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| /* end confdefs.h. */
-| #include <sys/byteswap.h>
-configure:3374: result: no
-configure:3409: checking for sys/byteswap.h
-configure:3416: result: no
-configure:3293: checking sys/endian.h usability
-configure:3305: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-conftest.cc:63:24: fatal error: sys/endian.h: No such file or directory
-compilation terminated.
-configure:3311: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| /* end confdefs.h. */
-| #include <stdio.h>
-| #if HAVE_SYS_TYPES_H
-| # include <sys/types.h>
-| #endif
-| #if HAVE_SYS_STAT_H
-| # include <sys/stat.h>
-| #endif
-| #if STDC_HEADERS
-| # include <stdlib.h>
-| # include <stddef.h>
-| #else
-| # if HAVE_STDLIB_H
-| # include <stdlib.h>
-| # endif
-| #endif
-| #if HAVE_STRING_H
-| # if !STDC_HEADERS && HAVE_MEMORY_H
-| # include <memory.h>
-| # endif
-| # include <string.h>
-| #endif
-| #if HAVE_STRINGS_H
-| # include <strings.h>
-| #endif
-| #if HAVE_INTTYPES_H
-| # include <inttypes.h>
-| #else
-| # if HAVE_STDINT_H
-| # include <stdint.h>
-| # endif
-| #endif
-| #if HAVE_UNISTD_H
-| # include <unistd.h>
-| #endif
-| #include <sys/endian.h>
-configure:3334: result: no
-configure:3338: checking sys/endian.h presence
-configure:3348: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -E conftest.cc
-conftest.cc:29:24: fatal error: sys/endian.h: No such file or directory
-compilation terminated.
-configure:3354: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| /* end confdefs.h. */
-| #include <sys/endian.h>
-configure:3374: result: no
-configure:3409: checking for sys/endian.h
-configure:3416: result: no
-configure:3432: checking for mmap
-configure:3489: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc >&5
-configure:3495: $? = 0
-configure:3499: test -z
- || test ! -s conftest.err
-configure:3502: $? = 0
-configure:3505: test -s conftest
-configure:3508: $? = 0
-configure:3520: result: yes
-configure:3540: checking for 'gtest-config'
-configure:3567: checking for gtest-config
-configure:3600: result: no
-configure:3622: result: no
-configure:3726: checking for pkg-config
-configure:3744: found /usr/bin/pkg-config
-configure:3756: result: /usr/bin/pkg-config
-configure:3771: checking pkg-config is at least version 0.9.0
-configure:3774: result: yes
-configure:3785: checking for gflags
-configure:3793: $PKG_CONFIG --exists --print-errors "libgflags"
-Package libgflags was not found in the pkg-config search path.
-Perhaps you should add the directory containing `libgflags.pc'
-to the PKG_CONFIG_PATH environment variable
-No package 'libgflags' found
-configure:3796: $? = 1
-configure:3811: $PKG_CONFIG --exists --print-errors "libgflags"
-Package libgflags was not found in the pkg-config search path.
-Perhaps you should add the directory containing `libgflags.pc'
-to the PKG_CONFIG_PATH environment variable
-No package 'libgflags' found
-configure:3814: $? = 1
-No package 'libgflags' found
-configure:3842: result: no
-configure:3874: checking if the compiler supports __builtin_expect
-configure:3895: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3901: $? = 0
-configure:3905: test -z
- || test ! -s conftest.err
-configure:3908: $? = 0
-configure:3911: test -s conftest.o
-configure:3914: $? = 0
-configure:3918: result: yes
-configure:3942: checking if the compiler supports __builtin_ctzll
-configure:3963: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -c -g -O2 conftest.cc >&5
-configure:3969: $? = 0
-configure:3973: test -z
- || test ! -s conftest.err
-configure:3976: $? = 0
-configure:3979: test -s conftest.o
-configure:3982: $? = 0
-configure:3986: result: yes
-configure:4015: checking for zlibVersion in -lz
-configure:4045: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc -lz >&5
-configure:4051: $? = 0
-configure:4055: test -z
- || test ! -s conftest.err
-configure:4058: $? = 0
-configure:4061: test -s conftest
-configure:4064: $? = 0
-configure:4077: result: yes
-configure:4096: checking for lzo1x_1_15_compress in -llzo2
-configure:4126: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc -llzo2 >&5
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/binutils/binutils-2.21.1/da39a3e/bin/ld: cannot find -llzo2
-collect2: ld returned 1 exit status
-configure:4132: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| #define HAVE_BUILTIN_EXPECT 1
-| #define HAVE_BUILTIN_CTZ 1
-| #define HAVE_LIBZ 1
-| /* end confdefs.h. */
-|
-| /* Override any gcc2 internal prototype to avoid an error. */
-| #ifdef __cplusplus
-| extern "C"
-| #endif
-| /* We use char because int might match the return type of a gcc2
-| builtin and then its argument prototype would still apply. */
-| char lzo1x_1_15_compress ();
-| int
-| main ()
-| {
-| lzo1x_1_15_compress ();
-| ;
-| return 0;
-| }
-configure:4158: result: no
-configure:4177: checking for lzf_compress in -llzf
-configure:4207: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc -llzf >&5
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/binutils/binutils-2.21.1/da39a3e/bin/ld: cannot find -llzf
-collect2: ld returned 1 exit status
-configure:4213: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| #define HAVE_BUILTIN_EXPECT 1
-| #define HAVE_BUILTIN_CTZ 1
-| #define HAVE_LIBZ 1
-| /* end confdefs.h. */
-|
-| /* Override any gcc2 internal prototype to avoid an error. */
-| #ifdef __cplusplus
-| extern "C"
-| #endif
-| /* We use char because int might match the return type of a gcc2
-| builtin and then its argument prototype would still apply. */
-| char lzf_compress ();
-| int
-| main ()
-| {
-| lzf_compress ();
-| ;
-| return 0;
-| }
-configure:4239: result: no
-configure:4258: checking for fastlz_compress in -lfastlz
-configure:4288: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc -lfastlz >&5
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/binutils/binutils-2.21.1/da39a3e/bin/ld: cannot find -lfastlz
-collect2: ld returned 1 exit status
-configure:4294: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| #define HAVE_BUILTIN_EXPECT 1
-| #define HAVE_BUILTIN_CTZ 1
-| #define HAVE_LIBZ 1
-| /* end confdefs.h. */
-|
-| /* Override any gcc2 internal prototype to avoid an error. */
-| #ifdef __cplusplus
-| extern "C"
-| #endif
-| /* We use char because int might match the return type of a gcc2
-| builtin and then its argument prototype would still apply. */
-| char fastlz_compress ();
-| int
-| main ()
-| {
-| fastlz_compress ();
-| ;
-| return 0;
-| }
-configure:4320: result: no
-configure:4339: checking for qlz_compress in -lquicklz
-configure:4369: /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -I ./snappy -I /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/boost/default/eed002c/include -std=gnu++0x -I./thrift -I./thrift/gen-cpp -I./thrift/lib/cpp -o conftest -g -O2 conftest.cc -lquicklz >&5
-/mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/binutils/binutils-2.21.1/da39a3e/bin/ld: cannot find -lquicklz
-collect2: ld returned 1 exit status
-configure:4375: $? = 1
-configure: failed program was:
-| /* confdefs.h. */
-|
-| #define PACKAGE_NAME "snappy"
-| #define PACKAGE_TARNAME "snappy"
-| #define PACKAGE_VERSION "1.0.5"
-| #define PACKAGE_STRING "snappy 1.0.5"
-| #define PACKAGE_BUGREPORT ""
-| #define PACKAGE "snappy"
-| #define VERSION "1.0.5"
-| #ifdef __cplusplus
-| extern "C" void exit (int) throw ();
-| #endif
-| #define STDC_HEADERS 1
-| #define HAVE_SYS_TYPES_H 1
-| #define HAVE_SYS_STAT_H 1
-| #define HAVE_STDLIB_H 1
-| #define HAVE_STRING_H 1
-| #define HAVE_MEMORY_H 1
-| #define HAVE_STRINGS_H 1
-| #define HAVE_INTTYPES_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_UNISTD_H 1
-| #define HAVE_STDINT_H 1
-| #define HAVE_STDDEF_H 1
-| #define HAVE_SYS_MMAN_H 1
-| #define HAVE_SYS_RESOURCE_H 1
-| #define HAVE_BYTESWAP_H 1
-| #define HAVE_BUILTIN_EXPECT 1
-| #define HAVE_BUILTIN_CTZ 1
-| #define HAVE_LIBZ 1
-| /* end confdefs.h. */
-|
-| /* Override any gcc2 internal prototype to avoid an error. */
-| #ifdef __cplusplus
-| extern "C"
-| #endif
-| /* We use char because int might match the return type of a gcc2
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-| char qlz_compress ();
-| int
-| main ()
-| {
-| qlz_compress ();
-| ;
-| return 0;
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-configure:4401: result: no
-configure:4566: creating ./config.status
-
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-ac_cv_env_GTEST_LDFLAGS_set=
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-ac_cv_env_GTEST_VERSION_value=
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-ac_cv_env_PKG_CONFIG_set=
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-ac_cv_env_build_alias_set=
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-ac_cv_env_gflags_CFLAGS_set=
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-ac_cv_env_target_alias_value=
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-ac_cv_func_mmap=yes
-ac_cv_have_stddef_h=1
-ac_cv_have_stdint_h=1
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-ac_cv_header_stdc=yes
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-ac_cv_header_stdint_h=yes
-ac_cv_header_stdlib_h=yes
-ac_cv_header_string_h=yes
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-ac_cv_header_sys_mman_h=yes
-ac_cv_header_sys_resource_h=yes
-ac_cv_header_sys_stat_h=yes
-ac_cv_header_sys_types_h=yes
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-ac_cv_lib_fastlz_fastlz_compress=no
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-ac_cv_path_ac_pt_PKG_CONFIG=/usr/bin/pkg-config
-ac_cv_path_install='/usr/bin/install -c'
-ac_cv_prog_AWK=gawk
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-am_cv_CXX_dependencies_compiler_type=gcc3
-
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-## ----------------- ##
-
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-
-## ----------- ##
-## confdefs.h. ##
-## ----------- ##
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-#define PACKAGE "snappy"
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- CONFIG_FILES =
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-on dev3936.snc6.facebook.com
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-config.status:815: creating config.h
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-## ---------------------- ##
-## Running config.status. ##
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-
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- $as_unset $as_var
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-
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-# CDPATH.
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-{
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-s/^\([^=]*=[ ]*\):*/\1/;
-s/:*$//;
-s/^[^=]*=[ ]*$//;
-}
-
-:t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
-s,@configure_input@,$configure_input,;t t
-s,@srcdir@,$ac_srcdir,;t t
-s,@abs_srcdir@,$ac_abs_srcdir,;t t
-s,@top_srcdir@,$ac_top_srcdir,;t t
-s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
-s,@builddir@,$ac_builddir,;t t
-s,@abs_builddir@,$ac_abs_builddir,;t t
-s,@top_builddir@,$ac_top_builddir,;t t
-s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
-s,@INSTALL@,$ac_INSTALL,;t t
-" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
- rm -f $tmp/stdin
- if test x"$ac_file" != x-; then
- mv $tmp/out $ac_file
- else
- cat $tmp/out
- rm -f $tmp/out
- fi
-
-done
-
-#
-# CONFIG_HEADER section.
-#
-
-# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
-# NAME is the cpp macro being defined and VALUE is the value it is being given.
-#
-# ac_d sets the value in "#define NAME VALUE" lines.
-ac_dA='s,^\([ ]*\)#\([ ]*define[ ][ ]*\)'
-ac_dB='[ ].*$,\1#\2'
-ac_dC=' '
-ac_dD=',;t'
-# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
-ac_uA='s,^\([ ]*\)#\([ ]*\)undef\([ ][ ]*\)'
-ac_uB='$,\1#\2define\3'
-ac_uC=' '
-ac_uD=',;t'
-
-for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
- # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
- case $ac_file in
- - | *:- | *:-:* ) # input from stdin
- cat >$tmp/stdin
- ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
- ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
- *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
- ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
- * ) ac_file_in=$ac_file.in ;;
- esac
-
- test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
-echo "$as_me: creating $ac_file" >&6;}
-
- # First look for the input files in the build tree, otherwise in the
- # src tree.
- ac_file_inputs=`IFS=:
- for f in $ac_file_in; do
- case $f in
- -) echo $tmp/stdin ;;
- [\\/$]*)
- # Absolute (can't be DOS-style, as IFS=:)
- test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
-echo "$as_me: error: cannot find input file: $f" >&2;}
- { (exit 1); exit 1; }; }
- # Do quote $f, to prevent DOS paths from being IFS'd.
- echo "$f";;
- *) # Relative
- if test -f "$f"; then
- # Build tree
- echo "$f"
- elif test -f "$srcdir/$f"; then
- # Source tree
- echo "$srcdir/$f"
- else
- # /dev/null tree
- { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
-echo "$as_me: error: cannot find input file: $f" >&2;}
- { (exit 1); exit 1; }; }
- fi;;
- esac
- done` || { (exit 1); exit 1; }
- # Remove the trailing spaces.
- sed 's/[ ]*$//' $ac_file_inputs >$tmp/in
-
- # Handle all the #define templates only if necessary.
- if grep "^[ ]*#[ ]*define" $tmp/in >/dev/null; then
- # If there are no defines, we may have an empty if/fi
- :
- cat >$tmp/defines.sed <<CEOF
-/^[ ]*#[ ]*define/!b
-t clr
-: clr
-${ac_dA}PACKAGE_NAME${ac_dB}PACKAGE_NAME${ac_dC}"snappy"${ac_dD}
-${ac_dA}PACKAGE_TARNAME${ac_dB}PACKAGE_TARNAME${ac_dC}"snappy"${ac_dD}
-${ac_dA}PACKAGE_VERSION${ac_dB}PACKAGE_VERSION${ac_dC}"1.0.5"${ac_dD}
-${ac_dA}PACKAGE_STRING${ac_dB}PACKAGE_STRING${ac_dC}"snappy 1.0.5"${ac_dD}
-${ac_dA}PACKAGE_BUGREPORT${ac_dB}PACKAGE_BUGREPORT${ac_dC}""${ac_dD}
-${ac_dA}PACKAGE${ac_dB}PACKAGE${ac_dC}"snappy"${ac_dD}
-${ac_dA}VERSION${ac_dB}VERSION${ac_dC}"1.0.5"${ac_dD}
-${ac_dA}STDC_HEADERS${ac_dB}STDC_HEADERS${ac_dC}1${ac_dD}
-${ac_dA}HAVE_SYS_TYPES_H${ac_dB}HAVE_SYS_TYPES_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_SYS_STAT_H${ac_dB}HAVE_SYS_STAT_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_STDLIB_H${ac_dB}HAVE_STDLIB_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_STRING_H${ac_dB}HAVE_STRING_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_MEMORY_H${ac_dB}HAVE_MEMORY_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_STRINGS_H${ac_dB}HAVE_STRINGS_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_INTTYPES_H${ac_dB}HAVE_INTTYPES_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_STDINT_H${ac_dB}HAVE_STDINT_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_UNISTD_H${ac_dB}HAVE_UNISTD_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_STDINT_H${ac_dB}HAVE_STDINT_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_STDDEF_H${ac_dB}HAVE_STDDEF_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_SYS_MMAN_H${ac_dB}HAVE_SYS_MMAN_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_SYS_RESOURCE_H${ac_dB}HAVE_SYS_RESOURCE_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_BYTESWAP_H${ac_dB}HAVE_BYTESWAP_H${ac_dC}1${ac_dD}
-${ac_dA}HAVE_BUILTIN_EXPECT${ac_dB}HAVE_BUILTIN_EXPECT${ac_dC}1${ac_dD}
-${ac_dA}HAVE_BUILTIN_CTZ${ac_dB}HAVE_BUILTIN_CTZ${ac_dC}1${ac_dD}
-${ac_dA}HAVE_LIBZ${ac_dB}HAVE_LIBZ${ac_dC}1${ac_dD}
-CEOF
- sed -f $tmp/defines.sed $tmp/in >$tmp/out
- rm -f $tmp/in
- mv $tmp/out $tmp/in
-
- fi # grep
-
- # Handle all the #undef templates
- cat >$tmp/undefs.sed <<CEOF
-/^[ ]*#[ ]*undef/!b
-t clr
-: clr
-${ac_uA}PACKAGE_NAME${ac_uB}PACKAGE_NAME${ac_uC}"snappy"${ac_uD}
-${ac_uA}PACKAGE_TARNAME${ac_uB}PACKAGE_TARNAME${ac_uC}"snappy"${ac_uD}
-${ac_uA}PACKAGE_VERSION${ac_uB}PACKAGE_VERSION${ac_uC}"1.0.5"${ac_uD}
-${ac_uA}PACKAGE_STRING${ac_uB}PACKAGE_STRING${ac_uC}"snappy 1.0.5"${ac_uD}
-${ac_uA}PACKAGE_BUGREPORT${ac_uB}PACKAGE_BUGREPORT${ac_uC}""${ac_uD}
-${ac_uA}PACKAGE${ac_uB}PACKAGE${ac_uC}"snappy"${ac_uD}
-${ac_uA}VERSION${ac_uB}VERSION${ac_uC}"1.0.5"${ac_uD}
-${ac_uA}STDC_HEADERS${ac_uB}STDC_HEADERS${ac_uC}1${ac_uD}
-${ac_uA}HAVE_SYS_TYPES_H${ac_uB}HAVE_SYS_TYPES_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_SYS_STAT_H${ac_uB}HAVE_SYS_STAT_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_STDLIB_H${ac_uB}HAVE_STDLIB_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_STRING_H${ac_uB}HAVE_STRING_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_MEMORY_H${ac_uB}HAVE_MEMORY_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_STRINGS_H${ac_uB}HAVE_STRINGS_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_INTTYPES_H${ac_uB}HAVE_INTTYPES_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_STDINT_H${ac_uB}HAVE_STDINT_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_UNISTD_H${ac_uB}HAVE_UNISTD_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_STDINT_H${ac_uB}HAVE_STDINT_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_STDDEF_H${ac_uB}HAVE_STDDEF_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_SYS_MMAN_H${ac_uB}HAVE_SYS_MMAN_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_SYS_RESOURCE_H${ac_uB}HAVE_SYS_RESOURCE_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_BYTESWAP_H${ac_uB}HAVE_BYTESWAP_H${ac_uC}1${ac_uD}
-${ac_uA}HAVE_BUILTIN_EXPECT${ac_uB}HAVE_BUILTIN_EXPECT${ac_uC}1${ac_uD}
-${ac_uA}HAVE_BUILTIN_CTZ${ac_uB}HAVE_BUILTIN_CTZ${ac_uC}1${ac_uD}
-${ac_uA}HAVE_LIBZ${ac_uB}HAVE_LIBZ${ac_uC}1${ac_uD}
-s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
-CEOF
- sed -f $tmp/undefs.sed $tmp/in >$tmp/out
- rm -f $tmp/in
- mv $tmp/out $tmp/in
-
- # Let's still pretend it is `configure' which instantiates (i.e., don't
- # use $as_me), people would be surprised to read:
- # /* config.h. Generated by config.status. */
- if test x"$ac_file" = x-; then
- echo "/* Generated by configure. */" >$tmp/config.h
- else
- echo "/* $ac_file. Generated by configure. */" >$tmp/config.h
- fi
- cat $tmp/in >>$tmp/config.h
- rm -f $tmp/in
- if test x"$ac_file" != x-; then
- if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
- { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
-echo "$as_me: $ac_file is unchanged" >&6;}
- else
- ac_dir=`(dirname "$ac_file") 2>/dev/null ||
-$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$ac_file" : 'X\(//\)[^/]' \| \
- X"$ac_file" : 'X\(//\)$' \| \
- X"$ac_file" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$ac_file" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
- { if $as_mkdir_p; then
- mkdir -p "$ac_dir"
- else
- as_dir="$ac_dir"
- as_dirs=
- while test ! -d "$as_dir"; do
- as_dirs="$as_dir $as_dirs"
- as_dir=`(dirname "$as_dir") 2>/dev/null ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$as_dir" : 'X\(//\)[^/]' \| \
- X"$as_dir" : 'X\(//\)$' \| \
- X"$as_dir" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$as_dir" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
- done
- test ! -n "$as_dirs" || mkdir $as_dirs
- fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
-echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
- { (exit 1); exit 1; }; }; }
-
- rm -f $ac_file
- mv $tmp/config.h $ac_file
- fi
- else
- cat $tmp/config.h
- rm -f $tmp/config.h
- fi
-# Compute $ac_file's index in $config_headers.
-_am_stamp_count=1
-for _am_header in $config_headers :; do
- case $_am_header in
- $ac_file | $ac_file:* )
- break ;;
- * )
- _am_stamp_count=`expr $_am_stamp_count + 1` ;;
- esac
-done
-echo "timestamp for $ac_file" >`(dirname $ac_file) 2>/dev/null ||
-$as_expr X$ac_file : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X$ac_file : 'X\(//\)[^/]' \| \
- X$ac_file : 'X\(//\)$' \| \
- X$ac_file : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X$ac_file |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`/stamp-h$_am_stamp_count
-done
-
-#
-# CONFIG_COMMANDS section.
-#
-for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
- ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
- ac_source=`echo "$ac_file" | sed 's,[^:]*:,,'`
- ac_dir=`(dirname "$ac_dest") 2>/dev/null ||
-$as_expr X"$ac_dest" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$ac_dest" : 'X\(//\)[^/]' \| \
- X"$ac_dest" : 'X\(//\)$' \| \
- X"$ac_dest" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$ac_dest" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
- { if $as_mkdir_p; then
- mkdir -p "$ac_dir"
- else
- as_dir="$ac_dir"
- as_dirs=
- while test ! -d "$as_dir"; do
- as_dirs="$as_dir $as_dirs"
- as_dir=`(dirname "$as_dir") 2>/dev/null ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$as_dir" : 'X\(//\)[^/]' \| \
- X"$as_dir" : 'X\(//\)$' \| \
- X"$as_dir" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$as_dir" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
- done
- test ! -n "$as_dirs" || mkdir $as_dirs
- fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
-echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
- { (exit 1); exit 1; }; }; }
-
- ac_builddir=.
-
-if test "$ac_dir" != .; then
- ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
- # A "../" for each directory in $ac_dir_suffix.
- ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
-else
- ac_dir_suffix= ac_top_builddir=
-fi
-
-case $srcdir in
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- ac_srcdir=.
- if test -z "$ac_top_builddir"; then
- ac_top_srcdir=.
- else
- ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
- fi ;;
- [\\/]* | ?:[\\/]* ) # Absolute path.
- ac_srcdir=$srcdir$ac_dir_suffix;
- ac_top_srcdir=$srcdir ;;
- *) # Relative path.
- ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
- ac_top_srcdir=$ac_top_builddir$srcdir ;;
-esac
-
-# Do not use `cd foo && pwd` to compute absolute paths, because
-# the directories may not exist.
-case `pwd` in
-.) ac_abs_builddir="$ac_dir";;
-*)
- case "$ac_dir" in
- .) ac_abs_builddir=`pwd`;;
- [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
- *) ac_abs_builddir=`pwd`/"$ac_dir";;
- esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_top_builddir=${ac_top_builddir}.;;
-*)
- case ${ac_top_builddir}. in
- .) ac_abs_top_builddir=$ac_abs_builddir;;
- [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
- *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
- esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_srcdir=$ac_srcdir;;
-*)
- case $ac_srcdir in
- .) ac_abs_srcdir=$ac_abs_builddir;;
- [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
- *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
- esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_top_srcdir=$ac_top_srcdir;;
-*)
- case $ac_top_srcdir in
- .) ac_abs_top_srcdir=$ac_abs_builddir;;
- [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
- *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
- esac;;
-esac
-
-
- { echo "$as_me:$LINENO: executing $ac_dest commands" >&5
-echo "$as_me: executing $ac_dest commands" >&6;}
- case $ac_dest in
- depfiles ) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
- # Strip MF so we end up with the name of the file.
- mf=`echo "$mf" | sed -e 's/:.*$//'`
- # Check whether this is an Automake generated Makefile or not.
- # We used to match only the files named `Makefile.in', but
- # some people rename them; so instead we look at the file content.
- # Grep'ing the first line is not enough: some people post-process
- # each Makefile.in and add a new line on top of each file to say so.
- # So let's grep whole file.
- if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
- dirpart=`(dirname "$mf") 2>/dev/null ||
-$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$mf" : 'X\(//\)[^/]' \| \
- X"$mf" : 'X\(//\)$' \| \
- X"$mf" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$mf" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
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- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
- else
- continue
- fi
- # Extract the definition of DEPDIR, am__include, and am__quote
- # from the Makefile without running `make'.
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- am__include=`sed -n 's/^am__include = //p' < "$mf"`
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- am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
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- # Find all dependency output files, they are included files with
- # $(DEPDIR) in their names. We invoke sed twice because it is the
- # simplest approach to changing $(DEPDIR) to its actual value in the
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- X"$file" : 'X\(//\)$' \| \
- X"$file" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$file" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
- { if $as_mkdir_p; then
- mkdir -p $dirpart/$fdir
- else
- as_dir=$dirpart/$fdir
- as_dirs=
- while test ! -d "$as_dir"; do
- as_dirs="$as_dir $as_dirs"
- as_dir=`(dirname "$as_dir") 2>/dev/null ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$as_dir" : 'X\(//\)[^/]' \| \
- X"$as_dir" : 'X\(//\)$' \| \
- X"$as_dir" : 'X\(/\)' \| \
- . : '\(.\)' 2>/dev/null ||
-echo X"$as_dir" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
- /^X\(\/\/\)[^/].*/{ s//\1/; q; }
- /^X\(\/\/\)$/{ s//\1/; q; }
- /^X\(\/\).*/{ s//\1/; q; }
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- done
- test ! -n "$as_dirs" || mkdir $as_dirs
- fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirpart/$fdir" >&5
-echo "$as_me: error: cannot create directory $dirpart/$fdir" >&2;}
- { (exit 1); exit 1; }; }; }
-
- # echo "creating $dirpart/$file"
- echo '# dummy' > "$dirpart/$file"
- done
-done
- ;;
- esac
-done
-
-{ (exit 0); exit 0; }
+++ /dev/null
-#! /bin/sh
-# Configuration validation subroutine script.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-# Free Software Foundation, Inc.
-
-timestamp='2009-06-11'
-
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine. It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Please send patches to <config-patches@gnu.org>. Submit a context
-# diff and a properly formatted ChangeLog entry.
-#
-# Configuration subroutine to validate and canonicalize a configuration type.
-# Supply the specified configuration type as an argument.
-# If it is invalid, we print an error message on stderr and exit with code 1.
-# Otherwise, we print the canonical config type on stdout and succeed.
-
-# This file is supposed to be the same for all GNU packages
-# and recognize all the CPU types, system types and aliases
-# that are meaningful with *any* GNU software.
-# Each package is responsible for reporting which valid configurations
-# it does not support. The user should be able to distinguish
-# a failure to support a valid configuration from a meaningless
-# configuration.
-
-# The goal of this file is to map all the various variations of a given
-# machine specification into a single specification in the form:
-# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
-# or in some cases, the newer four-part form:
-# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
-# It is wrong to echo any other type of specification.
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION] CPU-MFR-OPSYS
- $0 [OPTION] ALIAS
-
-Canonicalize a configuration name.
-
-Operation modes:
- -h, --help print this help, then exit
- -t, --time-stamp print date of last modification, then exit
- -v, --version print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.sub ($timestamp)
-
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
- case $1 in
- --time-stamp | --time* | -t )
- echo "$timestamp" ; exit ;;
- --version | -v )
- echo "$version" ; exit ;;
- --help | --h* | -h )
- echo "$usage"; exit ;;
- -- ) # Stop option processing
- shift; break ;;
- - ) # Use stdin as input.
- break ;;
- -* )
- echo "$me: invalid option $1$help"
- exit 1 ;;
-
- *local*)
- # First pass through any local machine types.
- echo $1
- exit ;;
-
- * )
- break ;;
- esac
-done
-
-case $# in
- 0) echo "$me: missing argument$help" >&2
- exit 1;;
- 1) ;;
- *) echo "$me: too many arguments$help" >&2
- exit 1;;
-esac
-
-# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
-# Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
-case $maybe_os in
- nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
- uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
- kopensolaris*-gnu* | \
- storm-chaos* | os2-emx* | rtmk-nova*)
- os=-$maybe_os
- basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
- ;;
- *)
- basic_machine=`echo $1 | sed 's/-[^-]*$//'`
- if [ $basic_machine != $1 ]
- then os=`echo $1 | sed 's/.*-/-/'`
- else os=; fi
- ;;
-esac
-
-### Let's recognize common machines as not being operating systems so
-### that things like config.sub decstation-3100 work. We also
-### recognize some manufacturers as not being operating systems, so we
-### can provide default operating systems below.
-case $os in
- -sun*os*)
- # Prevent following clause from handling this invalid input.
- ;;
- -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
- -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
- -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
- -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
- -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
- -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
- -apple | -axis | -knuth | -cray)
- os=
- basic_machine=$1
- ;;
- -bluegene*)
- os=-cnk
- ;;
- -sim | -cisco | -oki | -wec | -winbond)
- os=
- basic_machine=$1
- ;;
- -scout)
- ;;
- -wrs)
- os=-vxworks
- basic_machine=$1
- ;;
- -chorusos*)
- os=-chorusos
- basic_machine=$1
- ;;
- -chorusrdb)
- os=-chorusrdb
- basic_machine=$1
- ;;
- -hiux*)
- os=-hiuxwe2
- ;;
- -sco6)
- os=-sco5v6
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco5)
- os=-sco3.2v5
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco4)
- os=-sco3.2v4
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2.[4-9]*)
- os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2v[4-9]*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco5v6*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco*)
- os=-sco3.2v2
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -udk*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -isc)
- os=-isc2.2
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -clix*)
- basic_machine=clipper-intergraph
- ;;
- -isc*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -lynx*)
- os=-lynxos
- ;;
- -ptx*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
- ;;
- -windowsnt*)
- os=`echo $os | sed -e 's/windowsnt/winnt/'`
- ;;
- -psos*)
- os=-psos
- ;;
- -mint | -mint[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
-esac
-
-# Decode aliases for certain CPU-COMPANY combinations.
-case $basic_machine in
- # Recognize the basic CPU types without company name.
- # Some are omitted here because they have special meanings below.
- 1750a | 580 \
- | a29k \
- | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
- | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
- | am33_2.0 \
- | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
- | bfin \
- | c4x | clipper \
- | d10v | d30v | dlx | dsp16xx \
- | fido | fr30 | frv \
- | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
- | i370 | i860 | i960 | ia64 \
- | ip2k | iq2000 \
- | lm32 \
- | m32c | m32r | m32rle | m68000 | m68k | m88k \
- | maxq | mb | microblaze | mcore | mep | metag \
- | mips | mipsbe | mipseb | mipsel | mipsle \
- | mips16 \
- | mips64 | mips64el \
- | mips64octeon | mips64octeonel \
- | mips64orion | mips64orionel \
- | mips64r5900 | mips64r5900el \
- | mips64vr | mips64vrel \
- | mips64vr4100 | mips64vr4100el \
- | mips64vr4300 | mips64vr4300el \
- | mips64vr5000 | mips64vr5000el \
- | mips64vr5900 | mips64vr5900el \
- | mipsisa32 | mipsisa32el \
- | mipsisa32r2 | mipsisa32r2el \
- | mipsisa64 | mipsisa64el \
- | mipsisa64r2 | mipsisa64r2el \
- | mipsisa64sb1 | mipsisa64sb1el \
- | mipsisa64sr71k | mipsisa64sr71kel \
- | mipstx39 | mipstx39el \
- | mn10200 | mn10300 \
- | moxie \
- | mt \
- | msp430 \
- | nios | nios2 \
- | ns16k | ns32k \
- | or32 \
- | pdp10 | pdp11 | pj | pjl \
- | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
- | pyramid \
- | score \
- | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
- | sh64 | sh64le \
- | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
- | sparcv8 | sparcv9 | sparcv9b | sparcv9v \
- | spu | strongarm \
- | tahoe | thumb | tic4x | tic80 | tron \
- | v850 | v850e \
- | we32k \
- | x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
- | z8k | z80)
- basic_machine=$basic_machine-unknown
- ;;
- m6811 | m68hc11 | m6812 | m68hc12)
- # Motorola 68HC11/12.
- basic_machine=$basic_machine-unknown
- os=-none
- ;;
- m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
- ;;
- ms1)
- basic_machine=mt-unknown
- ;;
-
- # We use `pc' rather than `unknown'
- # because (1) that's what they normally are, and
- # (2) the word "unknown" tends to confuse beginning users.
- i*86 | x86_64)
- basic_machine=$basic_machine-pc
- ;;
- # Object if more than one company name word.
- *-*-*)
- echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
- exit 1
- ;;
- # Recognize the basic CPU types with company name.
- 580-* \
- | a29k-* \
- | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
- | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
- | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
- | arm-* | armbe-* | armle-* | armeb-* | armv*-* \
- | avr-* | avr32-* \
- | bfin-* | bs2000-* \
- | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
- | clipper-* | craynv-* | cydra-* \
- | d10v-* | d30v-* | dlx-* \
- | elxsi-* \
- | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
- | h8300-* | h8500-* \
- | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
- | i*86-* | i860-* | i960-* | ia64-* \
- | ip2k-* | iq2000-* \
- | lm32-* \
- | m32c-* | m32r-* | m32rle-* \
- | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
- | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
- | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
- | mips16-* \
- | mips64-* | mips64el-* \
- | mips64octeon-* | mips64octeonel-* \
- | mips64orion-* | mips64orionel-* \
- | mips64r5900-* | mips64r5900el-* \
- | mips64vr-* | mips64vrel-* \
- | mips64vr4100-* | mips64vr4100el-* \
- | mips64vr4300-* | mips64vr4300el-* \
- | mips64vr5000-* | mips64vr5000el-* \
- | mips64vr5900-* | mips64vr5900el-* \
- | mipsisa32-* | mipsisa32el-* \
- | mipsisa32r2-* | mipsisa32r2el-* \
- | mipsisa64-* | mipsisa64el-* \
- | mipsisa64r2-* | mipsisa64r2el-* \
- | mipsisa64sb1-* | mipsisa64sb1el-* \
- | mipsisa64sr71k-* | mipsisa64sr71kel-* \
- | mipstx39-* | mipstx39el-* \
- | mmix-* \
- | mt-* \
- | msp430-* \
- | nios-* | nios2-* \
- | none-* | np1-* | ns16k-* | ns32k-* \
- | orion-* \
- | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
- | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
- | pyramid-* \
- | romp-* | rs6000-* \
- | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
- | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
- | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
- | sparclite-* \
- | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
- | tahoe-* | thumb-* \
- | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* | tile-* \
- | tron-* \
- | v850-* | v850e-* | vax-* \
- | we32k-* \
- | x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
- | xstormy16-* | xtensa*-* \
- | ymp-* \
- | z8k-* | z80-*)
- ;;
- # Recognize the basic CPU types without company name, with glob match.
- xtensa*)
- basic_machine=$basic_machine-unknown
- ;;
- # Recognize the various machine names and aliases which stand
- # for a CPU type and a company and sometimes even an OS.
- 386bsd)
- basic_machine=i386-unknown
- os=-bsd
- ;;
- 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
- basic_machine=m68000-att
- ;;
- 3b*)
- basic_machine=we32k-att
- ;;
- a29khif)
- basic_machine=a29k-amd
- os=-udi
- ;;
- abacus)
- basic_machine=abacus-unknown
- ;;
- adobe68k)
- basic_machine=m68010-adobe
- os=-scout
- ;;
- alliant | fx80)
- basic_machine=fx80-alliant
- ;;
- altos | altos3068)
- basic_machine=m68k-altos
- ;;
- am29k)
- basic_machine=a29k-none
- os=-bsd
- ;;
- amd64)
- basic_machine=x86_64-pc
- ;;
- amd64-*)
- basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- amdahl)
- basic_machine=580-amdahl
- os=-sysv
- ;;
- amiga | amiga-*)
- basic_machine=m68k-unknown
- ;;
- amigaos | amigados)
- basic_machine=m68k-unknown
- os=-amigaos
- ;;
- amigaunix | amix)
- basic_machine=m68k-unknown
- os=-sysv4
- ;;
- apollo68)
- basic_machine=m68k-apollo
- os=-sysv
- ;;
- apollo68bsd)
- basic_machine=m68k-apollo
- os=-bsd
- ;;
- aros)
- basic_machine=i386-pc
- os=-aros
- ;;
- aux)
- basic_machine=m68k-apple
- os=-aux
- ;;
- balance)
- basic_machine=ns32k-sequent
- os=-dynix
- ;;
- blackfin)
- basic_machine=bfin-unknown
- os=-linux
- ;;
- blackfin-*)
- basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- bluegene*)
- basic_machine=powerpc-ibm
- os=-cnk
- ;;
- c90)
- basic_machine=c90-cray
- os=-unicos
- ;;
- cegcc)
- basic_machine=arm-unknown
- os=-cegcc
- ;;
- convex-c1)
- basic_machine=c1-convex
- os=-bsd
- ;;
- convex-c2)
- basic_machine=c2-convex
- os=-bsd
- ;;
- convex-c32)
- basic_machine=c32-convex
- os=-bsd
- ;;
- convex-c34)
- basic_machine=c34-convex
- os=-bsd
- ;;
- convex-c38)
- basic_machine=c38-convex
- os=-bsd
- ;;
- cray | j90)
- basic_machine=j90-cray
- os=-unicos
- ;;
- craynv)
- basic_machine=craynv-cray
- os=-unicosmp
- ;;
- cr16)
- basic_machine=cr16-unknown
- os=-elf
- ;;
- crds | unos)
- basic_machine=m68k-crds
- ;;
- crisv32 | crisv32-* | etraxfs*)
- basic_machine=crisv32-axis
- ;;
- cris | cris-* | etrax*)
- basic_machine=cris-axis
- ;;
- crx)
- basic_machine=crx-unknown
- os=-elf
- ;;
- da30 | da30-*)
- basic_machine=m68k-da30
- ;;
- decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
- basic_machine=mips-dec
- ;;
- decsystem10* | dec10*)
- basic_machine=pdp10-dec
- os=-tops10
- ;;
- decsystem20* | dec20*)
- basic_machine=pdp10-dec
- os=-tops20
- ;;
- delta | 3300 | motorola-3300 | motorola-delta \
- | 3300-motorola | delta-motorola)
- basic_machine=m68k-motorola
- ;;
- delta88)
- basic_machine=m88k-motorola
- os=-sysv3
- ;;
- dicos)
- basic_machine=i686-pc
- os=-dicos
- ;;
- djgpp)
- basic_machine=i586-pc
- os=-msdosdjgpp
- ;;
- dpx20 | dpx20-*)
- basic_machine=rs6000-bull
- os=-bosx
- ;;
- dpx2* | dpx2*-bull)
- basic_machine=m68k-bull
- os=-sysv3
- ;;
- ebmon29k)
- basic_machine=a29k-amd
- os=-ebmon
- ;;
- elxsi)
- basic_machine=elxsi-elxsi
- os=-bsd
- ;;
- encore | umax | mmax)
- basic_machine=ns32k-encore
- ;;
- es1800 | OSE68k | ose68k | ose | OSE)
- basic_machine=m68k-ericsson
- os=-ose
- ;;
- fx2800)
- basic_machine=i860-alliant
- ;;
- genix)
- basic_machine=ns32k-ns
- ;;
- gmicro)
- basic_machine=tron-gmicro
- os=-sysv
- ;;
- go32)
- basic_machine=i386-pc
- os=-go32
- ;;
- h3050r* | hiux*)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- h8300hms)
- basic_machine=h8300-hitachi
- os=-hms
- ;;
- h8300xray)
- basic_machine=h8300-hitachi
- os=-xray
- ;;
- h8500hms)
- basic_machine=h8500-hitachi
- os=-hms
- ;;
- harris)
- basic_machine=m88k-harris
- os=-sysv3
- ;;
- hp300-*)
- basic_machine=m68k-hp
- ;;
- hp300bsd)
- basic_machine=m68k-hp
- os=-bsd
- ;;
- hp300hpux)
- basic_machine=m68k-hp
- os=-hpux
- ;;
- hp3k9[0-9][0-9] | hp9[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k2[0-9][0-9] | hp9k31[0-9])
- basic_machine=m68000-hp
- ;;
- hp9k3[2-9][0-9])
- basic_machine=m68k-hp
- ;;
- hp9k6[0-9][0-9] | hp6[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k7[0-79][0-9] | hp7[0-79][0-9])
- basic_machine=hppa1.1-hp
- ;;
- hp9k78[0-9] | hp78[0-9])
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][13679] | hp8[0-9][13679])
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][0-9] | hp8[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hppa-next)
- os=-nextstep3
- ;;
- hppaosf)
- basic_machine=hppa1.1-hp
- os=-osf
- ;;
- hppro)
- basic_machine=hppa1.1-hp
- os=-proelf
- ;;
- i370-ibm* | ibm*)
- basic_machine=i370-ibm
- ;;
-# I'm not sure what "Sysv32" means. Should this be sysv3.2?
- i*86v32)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv32
- ;;
- i*86v4*)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv4
- ;;
- i*86v)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv
- ;;
- i*86sol2)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-solaris2
- ;;
- i386mach)
- basic_machine=i386-mach
- os=-mach
- ;;
- i386-vsta | vsta)
- basic_machine=i386-unknown
- os=-vsta
- ;;
- iris | iris4d)
- basic_machine=mips-sgi
- case $os in
- -irix*)
- ;;
- *)
- os=-irix4
- ;;
- esac
- ;;
- isi68 | isi)
- basic_machine=m68k-isi
- os=-sysv
- ;;
- m68knommu)
- basic_machine=m68k-unknown
- os=-linux
- ;;
- m68knommu-*)
- basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- m88k-omron*)
- basic_machine=m88k-omron
- ;;
- magnum | m3230)
- basic_machine=mips-mips
- os=-sysv
- ;;
- merlin)
- basic_machine=ns32k-utek
- os=-sysv
- ;;
- mingw32)
- basic_machine=i386-pc
- os=-mingw32
- ;;
- mingw32ce)
- basic_machine=arm-unknown
- os=-mingw32ce
- ;;
- miniframe)
- basic_machine=m68000-convergent
- ;;
- *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
- mips3*-*)
- basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
- ;;
- mips3*)
- basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
- ;;
- monitor)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- morphos)
- basic_machine=powerpc-unknown
- os=-morphos
- ;;
- msdos)
- basic_machine=i386-pc
- os=-msdos
- ;;
- ms1-*)
- basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
- ;;
- mvs)
- basic_machine=i370-ibm
- os=-mvs
- ;;
- ncr3000)
- basic_machine=i486-ncr
- os=-sysv4
- ;;
- netbsd386)
- basic_machine=i386-unknown
- os=-netbsd
- ;;
- netwinder)
- basic_machine=armv4l-rebel
- os=-linux
- ;;
- news | news700 | news800 | news900)
- basic_machine=m68k-sony
- os=-newsos
- ;;
- news1000)
- basic_machine=m68030-sony
- os=-newsos
- ;;
- news-3600 | risc-news)
- basic_machine=mips-sony
- os=-newsos
- ;;
- necv70)
- basic_machine=v70-nec
- os=-sysv
- ;;
- next | m*-next )
- basic_machine=m68k-next
- case $os in
- -nextstep* )
- ;;
- -ns2*)
- os=-nextstep2
- ;;
- *)
- os=-nextstep3
- ;;
- esac
- ;;
- nh3000)
- basic_machine=m68k-harris
- os=-cxux
- ;;
- nh[45]000)
- basic_machine=m88k-harris
- os=-cxux
- ;;
- nindy960)
- basic_machine=i960-intel
- os=-nindy
- ;;
- mon960)
- basic_machine=i960-intel
- os=-mon960
- ;;
- nonstopux)
- basic_machine=mips-compaq
- os=-nonstopux
- ;;
- np1)
- basic_machine=np1-gould
- ;;
- nsr-tandem)
- basic_machine=nsr-tandem
- ;;
- op50n-* | op60c-*)
- basic_machine=hppa1.1-oki
- os=-proelf
- ;;
- openrisc | openrisc-*)
- basic_machine=or32-unknown
- ;;
- os400)
- basic_machine=powerpc-ibm
- os=-os400
- ;;
- OSE68000 | ose68000)
- basic_machine=m68000-ericsson
- os=-ose
- ;;
- os68k)
- basic_machine=m68k-none
- os=-os68k
- ;;
- pa-hitachi)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- paragon)
- basic_machine=i860-intel
- os=-osf
- ;;
- parisc)
- basic_machine=hppa-unknown
- os=-linux
- ;;
- parisc-*)
- basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- pbd)
- basic_machine=sparc-tti
- ;;
- pbb)
- basic_machine=m68k-tti
- ;;
- pc532 | pc532-*)
- basic_machine=ns32k-pc532
- ;;
- pc98)
- basic_machine=i386-pc
- ;;
- pc98-*)
- basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentium | p5 | k5 | k6 | nexgen | viac3)
- basic_machine=i586-pc
- ;;
- pentiumpro | p6 | 6x86 | athlon | athlon_*)
- basic_machine=i686-pc
- ;;
- pentiumii | pentium2 | pentiumiii | pentium3)
- basic_machine=i686-pc
- ;;
- pentium4)
- basic_machine=i786-pc
- ;;
- pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
- basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentiumpro-* | p6-* | 6x86-* | athlon-*)
- basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
- basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentium4-*)
- basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pn)
- basic_machine=pn-gould
- ;;
- power) basic_machine=power-ibm
- ;;
- ppc) basic_machine=powerpc-unknown
- ;;
- ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppcle | powerpclittle | ppc-le | powerpc-little)
- basic_machine=powerpcle-unknown
- ;;
- ppcle-* | powerpclittle-*)
- basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppc64) basic_machine=powerpc64-unknown
- ;;
- ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppc64le | powerpc64little | ppc64-le | powerpc64-little)
- basic_machine=powerpc64le-unknown
- ;;
- ppc64le-* | powerpc64little-*)
- basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ps2)
- basic_machine=i386-ibm
- ;;
- pw32)
- basic_machine=i586-unknown
- os=-pw32
- ;;
- rdos)
- basic_machine=i386-pc
- os=-rdos
- ;;
- rom68k)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- rm[46]00)
- basic_machine=mips-siemens
- ;;
- rtpc | rtpc-*)
- basic_machine=romp-ibm
- ;;
- s390 | s390-*)
- basic_machine=s390-ibm
- ;;
- s390x | s390x-*)
- basic_machine=s390x-ibm
- ;;
- sa29200)
- basic_machine=a29k-amd
- os=-udi
- ;;
- sb1)
- basic_machine=mipsisa64sb1-unknown
- ;;
- sb1el)
- basic_machine=mipsisa64sb1el-unknown
- ;;
- sde)
- basic_machine=mipsisa32-sde
- os=-elf
- ;;
- sei)
- basic_machine=mips-sei
- os=-seiux
- ;;
- sequent)
- basic_machine=i386-sequent
- ;;
- sh)
- basic_machine=sh-hitachi
- os=-hms
- ;;
- sh5el)
- basic_machine=sh5le-unknown
- ;;
- sh64)
- basic_machine=sh64-unknown
- ;;
- sparclite-wrs | simso-wrs)
- basic_machine=sparclite-wrs
- os=-vxworks
- ;;
- sps7)
- basic_machine=m68k-bull
- os=-sysv2
- ;;
- spur)
- basic_machine=spur-unknown
- ;;
- st2000)
- basic_machine=m68k-tandem
- ;;
- stratus)
- basic_machine=i860-stratus
- os=-sysv4
- ;;
- sun2)
- basic_machine=m68000-sun
- ;;
- sun2os3)
- basic_machine=m68000-sun
- os=-sunos3
- ;;
- sun2os4)
- basic_machine=m68000-sun
- os=-sunos4
- ;;
- sun3os3)
- basic_machine=m68k-sun
- os=-sunos3
- ;;
- sun3os4)
- basic_machine=m68k-sun
- os=-sunos4
- ;;
- sun4os3)
- basic_machine=sparc-sun
- os=-sunos3
- ;;
- sun4os4)
- basic_machine=sparc-sun
- os=-sunos4
- ;;
- sun4sol2)
- basic_machine=sparc-sun
- os=-solaris2
- ;;
- sun3 | sun3-*)
- basic_machine=m68k-sun
- ;;
- sun4)
- basic_machine=sparc-sun
- ;;
- sun386 | sun386i | roadrunner)
- basic_machine=i386-sun
- ;;
- sv1)
- basic_machine=sv1-cray
- os=-unicos
- ;;
- symmetry)
- basic_machine=i386-sequent
- os=-dynix
- ;;
- t3e)
- basic_machine=alphaev5-cray
- os=-unicos
- ;;
- t90)
- basic_machine=t90-cray
- os=-unicos
- ;;
- tic54x | c54x*)
- basic_machine=tic54x-unknown
- os=-coff
- ;;
- tic55x | c55x*)
- basic_machine=tic55x-unknown
- os=-coff
- ;;
- tic6x | c6x*)
- basic_machine=tic6x-unknown
- os=-coff
- ;;
- tile*)
- basic_machine=tile-unknown
- os=-linux-gnu
- ;;
- tx39)
- basic_machine=mipstx39-unknown
- ;;
- tx39el)
- basic_machine=mipstx39el-unknown
- ;;
- toad1)
- basic_machine=pdp10-xkl
- os=-tops20
- ;;
- tower | tower-32)
- basic_machine=m68k-ncr
- ;;
- tpf)
- basic_machine=s390x-ibm
- os=-tpf
- ;;
- udi29k)
- basic_machine=a29k-amd
- os=-udi
- ;;
- ultra3)
- basic_machine=a29k-nyu
- os=-sym1
- ;;
- v810 | necv810)
- basic_machine=v810-nec
- os=-none
- ;;
- vaxv)
- basic_machine=vax-dec
- os=-sysv
- ;;
- vms)
- basic_machine=vax-dec
- os=-vms
- ;;
- vpp*|vx|vx-*)
- basic_machine=f301-fujitsu
- ;;
- vxworks960)
- basic_machine=i960-wrs
- os=-vxworks
- ;;
- vxworks68)
- basic_machine=m68k-wrs
- os=-vxworks
- ;;
- vxworks29k)
- basic_machine=a29k-wrs
- os=-vxworks
- ;;
- w65*)
- basic_machine=w65-wdc
- os=-none
- ;;
- w89k-*)
- basic_machine=hppa1.1-winbond
- os=-proelf
- ;;
- xbox)
- basic_machine=i686-pc
- os=-mingw32
- ;;
- xps | xps100)
- basic_machine=xps100-honeywell
- ;;
- ymp)
- basic_machine=ymp-cray
- os=-unicos
- ;;
- z8k-*-coff)
- basic_machine=z8k-unknown
- os=-sim
- ;;
- z80-*-coff)
- basic_machine=z80-unknown
- os=-sim
- ;;
- none)
- basic_machine=none-none
- os=-none
- ;;
-
-# Here we handle the default manufacturer of certain CPU types. It is in
-# some cases the only manufacturer, in others, it is the most popular.
- w89k)
- basic_machine=hppa1.1-winbond
- ;;
- op50n)
- basic_machine=hppa1.1-oki
- ;;
- op60c)
- basic_machine=hppa1.1-oki
- ;;
- romp)
- basic_machine=romp-ibm
- ;;
- mmix)
- basic_machine=mmix-knuth
- ;;
- rs6000)
- basic_machine=rs6000-ibm
- ;;
- vax)
- basic_machine=vax-dec
- ;;
- pdp10)
- # there are many clones, so DEC is not a safe bet
- basic_machine=pdp10-unknown
- ;;
- pdp11)
- basic_machine=pdp11-dec
- ;;
- we32k)
- basic_machine=we32k-att
- ;;
- sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
- basic_machine=sh-unknown
- ;;
- sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
- basic_machine=sparc-sun
- ;;
- cydra)
- basic_machine=cydra-cydrome
- ;;
- orion)
- basic_machine=orion-highlevel
- ;;
- orion105)
- basic_machine=clipper-highlevel
- ;;
- mac | mpw | mac-mpw)
- basic_machine=m68k-apple
- ;;
- pmac | pmac-mpw)
- basic_machine=powerpc-apple
- ;;
- *-unknown)
- # Make sure to match an already-canonicalized machine name.
- ;;
- *)
- echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
- exit 1
- ;;
-esac
-
-# Here we canonicalize certain aliases for manufacturers.
-case $basic_machine in
- *-digital*)
- basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
- ;;
- *-commodore*)
- basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
- ;;
- *)
- ;;
-esac
-
-# Decode manufacturer-specific aliases for certain operating systems.
-
-if [ x"$os" != x"" ]
-then
-case $os in
- # First match some system type aliases
- # that might get confused with valid system types.
- # -solaris* is a basic system type, with this one exception.
- -solaris1 | -solaris1.*)
- os=`echo $os | sed -e 's|solaris1|sunos4|'`
- ;;
- -solaris)
- os=-solaris2
- ;;
- -svr4*)
- os=-sysv4
- ;;
- -unixware*)
- os=-sysv4.2uw
- ;;
- -gnu/linux*)
- os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
- ;;
- # First accept the basic system types.
- # The portable systems comes first.
- # Each alternative MUST END IN A *, to match a version number.
- # -sysv* is not here because it comes later, after sysvr4.
- -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
- | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
- | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
- | -kopensolaris* \
- | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
- | -aos* | -aros* \
- | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
- | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
- | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
- | -openbsd* | -solidbsd* \
- | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
- | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
- | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
- | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
- | -chorusos* | -chorusrdb* | -cegcc* \
- | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
- | -uxpv* | -beos* | -mpeix* | -udk* \
- | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
- | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
- | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
- | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
- | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
- | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
- | -skyos* | -haiku* | -rdos* | -toppers* | -drops*)
- # Remember, each alternative MUST END IN *, to match a version number.
- ;;
- -qnx*)
- case $basic_machine in
- x86-* | i*86-*)
- ;;
- *)
- os=-nto$os
- ;;
- esac
- ;;
- -nto-qnx*)
- ;;
- -nto*)
- os=`echo $os | sed -e 's|nto|nto-qnx|'`
- ;;
- -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
- | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
- | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
- ;;
- -mac*)
- os=`echo $os | sed -e 's|mac|macos|'`
- ;;
- -linux-dietlibc)
- os=-linux-dietlibc
- ;;
- -linux*)
- os=`echo $os | sed -e 's|linux|linux-gnu|'`
- ;;
- -sunos5*)
- os=`echo $os | sed -e 's|sunos5|solaris2|'`
- ;;
- -sunos6*)
- os=`echo $os | sed -e 's|sunos6|solaris3|'`
- ;;
- -opened*)
- os=-openedition
- ;;
- -os400*)
- os=-os400
- ;;
- -wince*)
- os=-wince
- ;;
- -osfrose*)
- os=-osfrose
- ;;
- -osf*)
- os=-osf
- ;;
- -utek*)
- os=-bsd
- ;;
- -dynix*)
- os=-bsd
- ;;
- -acis*)
- os=-aos
- ;;
- -atheos*)
- os=-atheos
- ;;
- -syllable*)
- os=-syllable
- ;;
- -386bsd)
- os=-bsd
- ;;
- -ctix* | -uts*)
- os=-sysv
- ;;
- -nova*)
- os=-rtmk-nova
- ;;
- -ns2 )
- os=-nextstep2
- ;;
- -nsk*)
- os=-nsk
- ;;
- # Preserve the version number of sinix5.
- -sinix5.*)
- os=`echo $os | sed -e 's|sinix|sysv|'`
- ;;
- -sinix*)
- os=-sysv4
- ;;
- -tpf*)
- os=-tpf
- ;;
- -triton*)
- os=-sysv3
- ;;
- -oss*)
- os=-sysv3
- ;;
- -svr4)
- os=-sysv4
- ;;
- -svr3)
- os=-sysv3
- ;;
- -sysvr4)
- os=-sysv4
- ;;
- # This must come after -sysvr4.
- -sysv*)
- ;;
- -ose*)
- os=-ose
- ;;
- -es1800*)
- os=-ose
- ;;
- -xenix)
- os=-xenix
- ;;
- -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
- os=-mint
- ;;
- -aros*)
- os=-aros
- ;;
- -kaos*)
- os=-kaos
- ;;
- -zvmoe)
- os=-zvmoe
- ;;
- -dicos*)
- os=-dicos
- ;;
- -none)
- ;;
- *)
- # Get rid of the `-' at the beginning of $os.
- os=`echo $os | sed 's/[^-]*-//'`
- echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
- exit 1
- ;;
-esac
-else
-
-# Here we handle the default operating systems that come with various machines.
-# The value should be what the vendor currently ships out the door with their
-# machine or put another way, the most popular os provided with the machine.
-
-# Note that if you're going to try to match "-MANUFACTURER" here (say,
-# "-sun"), then you have to tell the case statement up towards the top
-# that MANUFACTURER isn't an operating system. Otherwise, code above
-# will signal an error saying that MANUFACTURER isn't an operating
-# system, and we'll never get to this point.
-
-case $basic_machine in
- score-*)
- os=-elf
- ;;
- spu-*)
- os=-elf
- ;;
- *-acorn)
- os=-riscix1.2
- ;;
- arm*-rebel)
- os=-linux
- ;;
- arm*-semi)
- os=-aout
- ;;
- c4x-* | tic4x-*)
- os=-coff
- ;;
- # This must come before the *-dec entry.
- pdp10-*)
- os=-tops20
- ;;
- pdp11-*)
- os=-none
- ;;
- *-dec | vax-*)
- os=-ultrix4.2
- ;;
- m68*-apollo)
- os=-domain
- ;;
- i386-sun)
- os=-sunos4.0.2
- ;;
- m68000-sun)
- os=-sunos3
- # This also exists in the configure program, but was not the
- # default.
- # os=-sunos4
- ;;
- m68*-cisco)
- os=-aout
- ;;
- mep-*)
- os=-elf
- ;;
- mips*-cisco)
- os=-elf
- ;;
- mips*-*)
- os=-elf
- ;;
- or32-*)
- os=-coff
- ;;
- *-tti) # must be before sparc entry or we get the wrong os.
- os=-sysv3
- ;;
- sparc-* | *-sun)
- os=-sunos4.1.1
- ;;
- *-be)
- os=-beos
- ;;
- *-haiku)
- os=-haiku
- ;;
- *-ibm)
- os=-aix
- ;;
- *-knuth)
- os=-mmixware
- ;;
- *-wec)
- os=-proelf
- ;;
- *-winbond)
- os=-proelf
- ;;
- *-oki)
- os=-proelf
- ;;
- *-hp)
- os=-hpux
- ;;
- *-hitachi)
- os=-hiux
- ;;
- i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
- os=-sysv
- ;;
- *-cbm)
- os=-amigaos
- ;;
- *-dg)
- os=-dgux
- ;;
- *-dolphin)
- os=-sysv3
- ;;
- m68k-ccur)
- os=-rtu
- ;;
- m88k-omron*)
- os=-luna
- ;;
- *-next )
- os=-nextstep
- ;;
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-/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown`
-/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown`
-/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown`
-
-_ASUNAME
-
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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-do
- IFS=$as_save_IFS
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-
-} >&5
-
-cat >&5 <<_ACEOF
-
-
-## ----------- ##
-## Core tests. ##
-## ----------- ##
-
-_ACEOF
-
-
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- case "$ac_configure_args0 " in
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- cat <<\_ASBOX
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-
- if test -s confdefs.h; then
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-## ----------- ##
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-## ----------- ##
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-
-# Predefined preprocessor variables.
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-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_VERSION "$PACKAGE_VERSION"
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_STRING "$PACKAGE_STRING"
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
-_ACEOF
-
-
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-
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-echo "$as_me: loading cache $cache_file" >&6;}
- case $cache_file in
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- *) . ./$cache_file;;
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- fi
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- { echo "$as_me:$LINENO: creating cache $cache_file" >&5
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-
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- ac_cache_corrupted=:
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-echo "$as_me: error: changes in the environment can compromise the build" >&2;}
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- { (exit 1); exit 1; }; }
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-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
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-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-case m4 in
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- *) ac_macro_dir=$srcdir/m4 ;;
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-echo "$as_me: error: cannot find macro directory \`m4'" >&2;}
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-
-
-# These are flags passed to automake (though they look like gcc flags!)
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-
-
-fi
- if test "${ac_cv_path_install+set}" = set; then
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- else
- # As a last resort, use the slow shell script. We don't cache a
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- INSTALL=$ac_install_sh
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-echo "$as_me:$LINENO: result: $INSTALL" >&5
-echo "${ECHO_T}$INSTALL" >&6
-
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-
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
-
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-
-echo "$as_me:$LINENO: checking whether build environment is sane" >&5
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- # If neither matched, then we have a broken ls. This can happen
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-echo "$as_me: error: ls -t appears to fail. Make sure there is not a broken
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- { (exit 1); exit 1; }; }
- fi
-
- test "$2" = conftest.file
- )
-then
- # Ok.
- :
-else
- { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
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-echo "$as_me: error: newly created file is older than distributed files!
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- { (exit 1); exit 1; }; }
-fi
-echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-test "$program_prefix" != NONE &&
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-# Use a double $ so make ignores it.
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-program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
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-
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-
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- am_missing_run=
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-echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
-fi
-
-if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
- # We used to keeping the `.' as first argument, in order to
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- # $(mkdir_p) $(somedir)
- # where $(somedir) is conditionally defined. However this is wrong
- # for two reasons:
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- # $(mkdir_p) $(DESTDIR)$(somedir)
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- mkdir_p='mkdir -p --'
-else
- # On NextStep and OpenStep, the `mkdir' command does not
- # recognize any option. It will interpret all options as
- # directories to create, and then abort because `.' already
- # exists.
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- # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
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- else
- mkdir_p='$(install_sh) -d'
- fi
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-
-for ac_prog in gawk mawk nawk awk
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- # Extract the first word of "$ac_prog", so it can be a program name with args.
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- if test -n "$AWK"; then
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-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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- break 2
- fi
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-
-fi
-fi
-AWK=$ac_cv_prog_AWK
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-echo "${ECHO_T}$AWK" >&6
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- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- test -n "$AWK" && break
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-
-echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
-echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
-set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
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- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.make <<\_ACEOF
-all:
- @echo 'ac_maketemp="$(MAKE)"'
-_ACEOF
-# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
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- eval ac_cv_prog_make_${ac_make}_set=no
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- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- SET_MAKE=
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- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- SET_MAKE="MAKE=${MAKE-make}"
-fi
-
-rm -rf .tst 2>/dev/null
-mkdir .tst 2>/dev/null
-if test -d .tst; then
- am__leading_dot=.
-else
- am__leading_dot=_
-fi
-rmdir .tst 2>/dev/null
-
-# test to see if srcdir already configured
-if test "`cd $srcdir && pwd`" != "`pwd`" &&
- test -f $srcdir/config.status; then
- { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
-echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-# test whether we have cygpath
-if test -z "$CYGPATH_W"; then
- if (cygpath --version) >/dev/null 2>/dev/null; then
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- ac_cv_prog_CXXCPP=$CXXCPP
-
-fi
- CXXCPP=$ac_cv_prog_CXXCPP
-else
- ac_cv_prog_CXXCPP=$CXXCPP
-fi
-echo "$as_me:$LINENO: result: $CXXCPP" >&5
-echo "${ECHO_T}$CXXCPP" >&6
-ac_preproc_ok=false
-for ac_cxx_preproc_warn_flag in '' yes
-do
- # Use a header file that comes with gcc, so configuring glibc
- # with a fresh cross-compiler works.
- # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- # <limits.h> exists even on freestanding compilers.
- # On the NeXT, cc -E runs the code through the compiler's parser,
- # not just through cpp. "Syntax error" is here to catch this case.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
- Syntax error
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- :
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.$ac_ext
-
- # OK, works on sane cases. Now check whether non-existent headers
- # can be detected and how.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ac_nonexistent.h>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- # Broken: success on invalid input.
-continue
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
- :
-else
- { { echo "$as_me:$LINENO: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&5
-echo "$as_me: error: C++ preprocessor \"$CXXCPP\" fails sanity check
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
-fi
-
-ac_ext=cc
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-
-echo "$as_me:$LINENO: checking for egrep" >&5
-echo $ECHO_N "checking for egrep... $ECHO_C" >&6
-if test "${ac_cv_prog_egrep+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if echo a | (grep -E '(a|b)') >/dev/null 2>&1
- then ac_cv_prog_egrep='grep -E'
- else ac_cv_prog_egrep='egrep'
- fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
-echo "${ECHO_T}$ac_cv_prog_egrep" >&6
- EGREP=$ac_cv_prog_egrep
-
-
-echo "$as_me:$LINENO: checking for ANSI C header files" >&5
-echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
-if test "${ac_cv_header_stdc+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_header_stdc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_header_stdc=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
- # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "memchr" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "free" >/dev/null 2>&1; then
- :
-else
- ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
- # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
- if test "$cross_compiling" = yes; then
- :
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <ctype.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
- (('a' <= (c) && (c) <= 'i') \
- || ('j' <= (c) && (c) <= 'r') \
- || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
- int i;
- for (i = 0; i < 256; i++)
- if (XOR (islower (i), ISLOWER (i))
- || toupper (i) != TOUPPER (i))
- exit(2);
- exit (0);
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- :
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_header_stdc=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
-echo "${ECHO_T}$ac_cv_header_stdc" >&6
-if test $ac_cv_header_stdc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
- inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- eval "$as_ac_Header=yes"
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-eval "$as_ac_Header=no"
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-
-
-
-
-
-
-
-
-for ac_header in stdint.h stddef.h sys/mman.h sys/resource.h windows.h byteswap.h sys/byteswap.h sys/endian.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-else
- # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_header_compiler=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_header_compiler=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <$ac_header>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_cxx_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_cxx_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
- ac_header_preproc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in
- yes:no: )
- { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
- ;;
- no:yes:* )
- { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
- (
- cat <<\_ASBOX
-## --------------------------------- ##
-## Report this to the snappy lists. ##
-## --------------------------------- ##
-_ASBOX
- ) |
- sed "s/^/$as_me: WARNING: /" >&2
- ;;
-esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- eval "$as_ac_Header=\$ac_header_preproc"
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-# Don't use AC_FUNC_MMAP, as it checks for mappings of already-mapped memory,
-# which we don't need (and does not exist on Windows).
-echo "$as_me:$LINENO: checking for mmap" >&5
-echo $ECHO_N "checking for mmap... $ECHO_C" >&6
-if test "${ac_cv_func_mmap+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-/* Define mmap to an innocuous variant, in case <limits.h> declares mmap.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define mmap innocuous_mmap
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char mmap (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef mmap
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char mmap ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_mmap) || defined (__stub___mmap)
-choke me
-#else
-char (*f) () = mmap;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-int
-main ()
-{
-return f != mmap;
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_func_mmap=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_func_mmap=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $ac_cv_func_mmap" >&5
-echo "${ECHO_T}$ac_cv_func_mmap" >&6
-
-
-
-# Check whether --enable-gtest or --disable-gtest was given.
-if test "${enable_gtest+set}" = set; then
- enableval="$enable_gtest"
-
-else
- enable_gtest=
-fi;
-
-
-
-
-
-
-HAVE_GTEST="no"
-if test "x${enable_gtest}" != "xno"; then
- echo "$as_me:$LINENO: checking for 'gtest-config'" >&5
-echo $ECHO_N "checking for 'gtest-config'... $ECHO_C" >&6
- if test "x${enable_gtest}" = "xyes"; then
- if test -x "${enable_gtest}/scripts/gtest-config"; then
- GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"
-else
- GTEST_CONFIG="${enable_gtest}/bin/gtest-config"
-fi
-
- if test -x "${GTEST_CONFIG}"; then
- :
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- { { echo "$as_me:$LINENO: error: Unable to locate either a built or installed Google Test.
-The specific location '${enable_gtest}' was provided for a built or installed
-Google Test, but no 'gtest-config' script could be found at this location." >&5
-echo "$as_me: error: Unable to locate either a built or installed Google Test.
-The specific location '${enable_gtest}' was provided for a built or installed
-Google Test, but no 'gtest-config' script could be found at this location." >&2;}
- { (exit 1); exit 1; }; }
-
-fi
-
-else
- # Extract the first word of "gtest-config", so it can be a program name with args.
-set dummy gtest-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_GTEST_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $GTEST_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_GTEST_CONFIG="$GTEST_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_GTEST_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-GTEST_CONFIG=$ac_cv_path_GTEST_CONFIG
-
-if test -n "$GTEST_CONFIG"; then
- echo "$as_me:$LINENO: result: $GTEST_CONFIG" >&5
-echo "${ECHO_T}$GTEST_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-
- if test -x "${GTEST_CONFIG}"; then
- echo "$as_me:$LINENO: result: ${GTEST_CONFIG}" >&5
-echo "${ECHO_T}${GTEST_CONFIG}" >&6
- _gtest_min_version="--min-version=0"
- echo "$as_me:$LINENO: checking for Google Test" >&5
-echo $ECHO_N "checking for Google Test... $ECHO_C" >&6
- if ${GTEST_CONFIG} ${_gtest_min_version}; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- HAVE_GTEST='yes'
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- if test "x${HAVE_GTEST}" = "xyes"; then
- GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags`
- GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags`
- GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
- GTEST_LIBS=`${GTEST_CONFIG} --libs`
- GTEST_VERSION=`${GTEST_CONFIG} --version`
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_GTEST 1
-_ACEOF
-
-else
- if test "x${enable_gtest}" = "xyes"; then
- { { echo "$as_me:$LINENO: error: Google Test was enabled, but no viable version could be found." >&5
-echo "$as_me: error: Google Test was enabled, but no viable version could be found." >&2;}
- { (exit 1); exit 1; }; }
-
-fi
-
-fi
-
-fi
-
-
-
-
-if test "x$HAVE_GTEST" = "xyes"; then
- HAVE_GTEST_TRUE=
- HAVE_GTEST_FALSE='#'
-else
- HAVE_GTEST_TRUE='#'
- HAVE_GTEST_FALSE=
-fi
-
-if test "x$HAVE_GTEST" = "xyes"; then
- true
-else
- true # Ignore; we can live without it.
-fi
-
-
-
-
-# Check whether --with-gflags or --without-gflags was given.
-if test "${with_gflags+set}" = set; then
- withval="$with_gflags"
-
-else
- with_gflags=check
-fi;
-
-if test "x$with_gflags" != "xno"; then
-
-
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
-set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $PKG_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-PKG_CONFIG=$ac_cv_path_PKG_CONFIG
-
-if test -n "$PKG_CONFIG"; then
- echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
-echo "${ECHO_T}$PKG_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-if test -z "$ac_cv_path_PKG_CONFIG"; then
- ac_pt_PKG_CONFIG=$PKG_CONFIG
- # Extract the first word of "pkg-config", so it can be a program name with args.
-set dummy pkg-config; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- case $ac_pt_PKG_CONFIG in
- [\\/]* | ?:[\\/]*)
- ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
- ;;
- *)
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
- echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
-done
-
- ;;
-esac
-fi
-ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
-
-if test -n "$ac_pt_PKG_CONFIG"; then
- echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
-echo "${ECHO_T}$ac_pt_PKG_CONFIG" >&6
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
- PKG_CONFIG=$ac_pt_PKG_CONFIG
-else
- PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
-fi
-
-fi
-if test -n "$PKG_CONFIG"; then
- _pkg_min_version=0.9.0
- echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
-echo $ECHO_N "checking pkg-config is at least version $_pkg_min_version... $ECHO_C" >&6
- if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
- else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- PKG_CONFIG=""
- fi
-
-fi
-
-pkg_failed=no
-echo "$as_me:$LINENO: checking for gflags" >&5
-echo $ECHO_N "checking for gflags... $ECHO_C" >&6
-
-if test -n "$PKG_CONFIG"; then
- if test -n "$gflags_CFLAGS"; then
- pkg_cv_gflags_CFLAGS="$gflags_CFLAGS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libgflags\"") >&5
- ($PKG_CONFIG --exists --print-errors "libgflags") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_gflags_CFLAGS=`$PKG_CONFIG --cflags "libgflags" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-if test -n "$PKG_CONFIG"; then
- if test -n "$gflags_LIBS"; then
- pkg_cv_gflags_LIBS="$gflags_LIBS"
- else
- if test -n "$PKG_CONFIG" && \
- { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"libgflags\"") >&5
- ($PKG_CONFIG --exists --print-errors "libgflags") 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; then
- pkg_cv_gflags_LIBS=`$PKG_CONFIG --libs "libgflags" 2>/dev/null`
-else
- pkg_failed=yes
-fi
- fi
-else
- pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
- _pkg_short_errors_supported=yes
-else
- _pkg_short_errors_supported=no
-fi
- if test $_pkg_short_errors_supported = yes; then
- gflags_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "libgflags"`
- else
- gflags_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "libgflags"`
- fi
- # Put the nasty error message in config.log where it belongs
- echo "$gflags_PKG_ERRORS" >&5
-
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
- if test "x$with_gflags" != "xcheck"; then
- { { echo "$as_me:$LINENO: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&5
-echo "$as_me: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
-elif test $pkg_failed = untried; then
- if test "x$with_gflags" != "xcheck"; then
- { { echo "$as_me:$LINENO: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&5
-echo "$as_me: error: --with-gflags was given, but test for gflags failed
-See \`config.log' for more details." >&2;}
- { (exit 1); exit 1; }; }
- fi
-else
- gflags_CFLAGS=$pkg_cv_gflags_CFLAGS
- gflags_LIBS=$pkg_cv_gflags_LIBS
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_GFLAGS 1
-_ACEOF
-
-fi
-fi
-
-# See if we have __builtin_expect.
-# TODO: Use AC_CACHE.
-echo "$as_me:$LINENO: checking if the compiler supports __builtin_expect" >&5
-echo $ECHO_N "checking if the compiler supports __builtin_expect... $ECHO_C" >&6
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- return __builtin_expect(1, 1) ? 1 : 0
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- snappy_have_builtin_expect=yes
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
- snappy_have_builtin_expect=no
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-if test x$snappy_have_builtin_expect = xyes ; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BUILTIN_EXPECT 1
-_ACEOF
-
-fi
-
-# See if we have working count-trailing-zeros intrinsics.
-# TODO: Use AC_CACHE.
-echo "$as_me:$LINENO: checking if the compiler supports __builtin_ctzll" >&5
-echo $ECHO_N "checking if the compiler supports __builtin_ctzll... $ECHO_C" >&6
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- snappy_have_builtin_ctz=yes
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
- snappy_have_builtin_ctz=no
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-if test x$snappy_have_builtin_ctz = xyes ; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BUILTIN_CTZ 1
-_ACEOF
-
-fi
-
-# Other compression libraries; the unit test can use these for comparison
-# if they are available. If they are not found, just ignore.
-UNITTEST_LIBS=""
-
-
-
-
- echo "$as_me:$LINENO: checking for zlibVersion in -lz" >&5
-echo $ECHO_N "checking for zlibVersion in -lz... $ECHO_C" >&6
-if test "${ac_cv_lib_z_zlibVersion+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char zlibVersion ();
-int
-main ()
-{
-zlibVersion ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_z_zlibVersion=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_z_zlibVersion=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_z_zlibVersion" >&5
-echo "${ECHO_T}$ac_cv_lib_z_zlibVersion" >&6
-if test $ac_cv_lib_z_zlibVersion = yes; then
-
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBZ 1
-_ACEOF
-
- UNITTEST_LIBS="-lz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for lzo1x_1_15_compress in -llzo2" >&5
-echo $ECHO_N "checking for lzo1x_1_15_compress in -llzo2... $ECHO_C" >&6
-if test "${ac_cv_lib_lzo2_lzo1x_1_15_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-llzo2 $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char lzo1x_1_15_compress ();
-int
-main ()
-{
-lzo1x_1_15_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_lzo2_lzo1x_1_15_compress=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_lzo2_lzo1x_1_15_compress=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_lzo2_lzo1x_1_15_compress" >&5
-echo "${ECHO_T}$ac_cv_lib_lzo2_lzo1x_1_15_compress" >&6
-if test $ac_cv_lib_lzo2_lzo1x_1_15_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBLZO2 1
-_ACEOF
-
- UNITTEST_LIBS="-llzo2 $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for lzf_compress in -llzf" >&5
-echo $ECHO_N "checking for lzf_compress in -llzf... $ECHO_C" >&6
-if test "${ac_cv_lib_lzf_lzf_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-llzf $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char lzf_compress ();
-int
-main ()
-{
-lzf_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_lzf_lzf_compress=yes
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_lzf_lzf_compress=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_lzf_lzf_compress" >&5
-echo "${ECHO_T}$ac_cv_lib_lzf_lzf_compress" >&6
-if test $ac_cv_lib_lzf_lzf_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBLZF 1
-_ACEOF
-
- UNITTEST_LIBS="-llzf $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for fastlz_compress in -lfastlz" >&5
-echo $ECHO_N "checking for fastlz_compress in -lfastlz... $ECHO_C" >&6
-if test "${ac_cv_lib_fastlz_fastlz_compress+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lfastlz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char fastlz_compress ();
-int
-main ()
-{
-fastlz_compress ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
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- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_fastlz_fastlz_compress=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
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-echo "$as_me:$LINENO: result: $ac_cv_lib_fastlz_fastlz_compress" >&5
-echo "${ECHO_T}$ac_cv_lib_fastlz_fastlz_compress" >&6
-if test $ac_cv_lib_fastlz_fastlz_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBFASTLZ 1
-_ACEOF
-
- UNITTEST_LIBS="-lfastlz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-
- echo "$as_me:$LINENO: checking for qlz_compress in -lquicklz" >&5
-echo $ECHO_N "checking for qlz_compress in -lquicklz... $ECHO_C" >&6
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-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lquicklz $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char qlz_compress ();
-int
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-{
-qlz_compress ();
- ;
- return 0;
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-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
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- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_cxx_werror_flag"
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- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_lib_quicklz_qlz_compress=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_quicklz_qlz_compress=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_quicklz_qlz_compress" >&5
-echo "${ECHO_T}$ac_cv_lib_quicklz_qlz_compress" >&6
-if test $ac_cv_lib_quicklz_qlz_compress = yes; then
-
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBQUICKLZ 1
-_ACEOF
-
- UNITTEST_LIBS="-lquicklz $UNITTEST_LIBS"
-
-else
- true
-
-fi
-
-
-
-
-# These are used by snappy-stubs-public.h.in.
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- ac_cv_have_stdint_h=1
-
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- ac_cv_have_stdint_h=0
-
-fi
-if test "$ac_cv_header_stddef_h" = "yes"; then
- ac_cv_have_stddef_h=1
-
-else
- ac_cv_have_stddef_h=0
-
-fi
-
-# Export the version to snappy-stubs-public.h.
-SNAPPY_MAJOR="1"
-SNAPPY_MINOR="0"
-SNAPPY_PATCHLEVEL="5"
-
-
-
-
-SNAPPY_LTVERSION=2:3:1
-
-
- ac_config_headers="$ac_config_headers config.h"
-
- ac_config_files="$ac_config_files Makefile snappy-stubs-public.h"
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs, see configure's option --config-cache.
-# It is not useful on other systems. If it contains results you don't
-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
-# the --recheck option to rerun configure.
-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
-# following values.
-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, don't put newlines in cache variables' values.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-{
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- case `(ac_space=' '; set | grep ac_space) 2>&1` in
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- # `set' does not quote correctly, so add quotes (double-quote
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- ;;
- *)
- # `set' quotes correctly as required by POSIX, so do not add quotes.
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- "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
- ;;
- esac;
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- t clear
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- s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
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- ac_vpsub='/^[ ]*VPATH[ ]*=/{
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-s/^[^=]*=[ ]*$//;
-}'
-fi
-
-DEFS=-DHAVE_CONFIG_H
-
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- # 2. Add them.
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-LTLIBOBJS=$ac_ltlibobjs
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- { (exit 1); exit 1; }; }
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-if test -z "${HAVE_GTEST_TRUE}" && test -z "${HAVE_GTEST_FALSE}"; then
- { { echo "$as_me:$LINENO: error: conditional \"HAVE_GTEST\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-echo "$as_me: error: conditional \"HAVE_GTEST\" was never defined.
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- { (exit 1); exit 1; }; }
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-
-: ${CONFIG_STATUS=./config.status}
-ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files $CONFIG_STATUS"
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-
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- LC_TELEPHONE LC_TIME
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-
-
-# Name of the executable.
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-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
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- X"$0" : 'X\(/\)$' \| \
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-echo X/"$0" |
- sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
- /^X\/\(\/\/\)$/{ s//\1/; q; }
- /^X\/\(\/\).*/{ s//\1/; q; }
- s/.*/./; q'`
-
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-# PATH needs CR, and LINENO needs CR and PATH.
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-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
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-as_cr_alnum=$as_cr_Letters$as_cr_digits
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-# The user is always right.
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- echo "exit 0" >>conf$$.sh
- chmod +x conf$$.sh
- if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
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- rm -f conf$$.sh
-fi
-
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- as_lineno_1=$LINENO
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- ;;
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- as_myself=$0
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-echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
- { (exit 1); exit 1; }; }
- fi
- case $CONFIG_SHELL in
- '')
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
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- esac
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- # with the numbered line, and appends trailing '-' during
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- # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
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- sed '=' <$as_myself |
- sed '
- N
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- t loop
- s,-$,,
- s,^['$as_cr_digits']*\n,,
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- { (exit 1); exit 1; }; }
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- # Don't try to exec as it changes $[0], causing all sort of problems
- # (the dirname of $[0] is not the place where we might find the
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- # Exit status is that of the last command.
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-
-case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
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-
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- # Use ||, not &&, to avoid exiting from the if with $? = 1, which
- # would make configure fail if this is the last instruction.
- $ac_cs_success || { (exit 1); exit 1; }
-fi
-
+++ /dev/null
-m4_define([snappy_major], [1])
-m4_define([snappy_minor], [0])
-m4_define([snappy_patchlevel], [5])
-
-# Libtool shared library interface versions (current:revision:age)
-# Update this value for every release! (A:B:C will map to foo.so.(A-C).C.B)
-# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-m4_define([snappy_ltversion], [2:3:1])
-
-AC_INIT([snappy], [snappy_major.snappy_minor.snappy_patchlevel])
-AC_CONFIG_MACRO_DIR([m4])
-
-# These are flags passed to automake (though they look like gcc flags!)
-AM_INIT_AUTOMAKE([-Wall -Werror])
-
-LT_INIT
-AC_SUBST([LIBTOOL_DEPS])
-AC_PROG_CXX
-AC_LANG([C++])
-AC_C_BIGENDIAN
-AC_CHECK_HEADERS([stdint.h stddef.h sys/mman.h sys/resource.h windows.h byteswap.h sys/byteswap.h sys/endian.h])
-
-# Don't use AC_FUNC_MMAP, as it checks for mappings of already-mapped memory,
-# which we don't need (and does not exist on Windows).
-AC_CHECK_FUNC([mmap])
-
-GTEST_LIB_CHECK([], [true], [true # Ignore; we can live without it.])
-
-AC_ARG_WITH([gflags],
- [AS_HELP_STRING(
- [--with-gflags],
- [use Google Flags package to enhance the unit test @<:@default=check@:>@])],
- [],
- [with_gflags=check])
-
-if test "x$with_gflags" != "xno"; then
- PKG_CHECK_MODULES(
- [gflags],
- [libgflags],
- [AC_DEFINE([HAVE_GFLAGS], [1], [Use the gflags package for command-line parsing.])],
- [if test "x$with_gflags" != "xcheck"; then
- AC_MSG_FAILURE([--with-gflags was given, but test for gflags failed])
- fi])
-fi
-
-# See if we have __builtin_expect.
-# TODO: Use AC_CACHE.
-AC_MSG_CHECKING([if the compiler supports __builtin_expect])
-
-AC_TRY_COMPILE(, [
- return __builtin_expect(1, 1) ? 1 : 0
-], [
- snappy_have_builtin_expect=yes
- AC_MSG_RESULT([yes])
-], [
- snappy_have_builtin_expect=no
- AC_MSG_RESULT([no])
-])
-if test x$snappy_have_builtin_expect = xyes ; then
- AC_DEFINE([HAVE_BUILTIN_EXPECT], [1], [Define to 1 if the compiler supports __builtin_expect.])
-fi
-
-# See if we have working count-trailing-zeros intrinsics.
-# TODO: Use AC_CACHE.
-AC_MSG_CHECKING([if the compiler supports __builtin_ctzll])
-
-AC_TRY_COMPILE(, [
- return (__builtin_ctzll(0x100000000LL) == 32) ? 1 : 0
-], [
- snappy_have_builtin_ctz=yes
- AC_MSG_RESULT([yes])
-], [
- snappy_have_builtin_ctz=no
- AC_MSG_RESULT([no])
-])
-if test x$snappy_have_builtin_ctz = xyes ; then
- AC_DEFINE([HAVE_BUILTIN_CTZ], [1], [Define to 1 if the compiler supports __builtin_ctz and friends.])
-fi
-
-# Other compression libraries; the unit test can use these for comparison
-# if they are available. If they are not found, just ignore.
-UNITTEST_LIBS=""
-AC_DEFUN([CHECK_EXT_COMPRESSION_LIB], [
- AH_CHECK_LIB([$1])
- AC_CHECK_LIB(
- [$1],
- [$2],
- [
- AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1))
- UNITTEST_LIBS="-l$1 $UNITTEST_LIBS"
- ],
- [true]
- )
-])
-CHECK_EXT_COMPRESSION_LIB([z], [zlibVersion])
-CHECK_EXT_COMPRESSION_LIB([lzo2], [lzo1x_1_15_compress])
-CHECK_EXT_COMPRESSION_LIB([lzf], [lzf_compress])
-CHECK_EXT_COMPRESSION_LIB([fastlz], [fastlz_compress])
-CHECK_EXT_COMPRESSION_LIB([quicklz], [qlz_compress])
-AC_SUBST([UNITTEST_LIBS])
-
-# These are used by snappy-stubs-public.h.in.
-if test "$ac_cv_header_stdint_h" = "yes"; then
- AC_SUBST([ac_cv_have_stdint_h], [1])
-else
- AC_SUBST([ac_cv_have_stdint_h], [0])
-fi
-if test "$ac_cv_header_stddef_h" = "yes"; then
- AC_SUBST([ac_cv_have_stddef_h], [1])
-else
- AC_SUBST([ac_cv_have_stddef_h], [0])
-fi
-
-# Export the version to snappy-stubs-public.h.
-SNAPPY_MAJOR="snappy_major"
-SNAPPY_MINOR="snappy_minor"
-SNAPPY_PATCHLEVEL="snappy_patchlevel"
-
-AC_SUBST([SNAPPY_MAJOR])
-AC_SUBST([SNAPPY_MINOR])
-AC_SUBST([SNAPPY_PATCHLEVEL])
-AC_SUBST([SNAPPY_LTVERSION], snappy_ltversion)
-
-AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_FILES([Makefile snappy-stubs-public.h])
-AC_OUTPUT
+++ /dev/null
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2009-04-28.21; # UTC
-
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
-# Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
-
-case $1 in
- '')
- echo "$0: No command. Try \`$0 --help' for more information." 1>&2
- exit 1;
- ;;
- -h | --h*)
- cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
- depmode Dependency tracking mode.
- source Source file read by `PROGRAMS ARGS'.
- object Object file output by `PROGRAMS ARGS'.
- DEPDIR directory where to store dependencies.
- depfile Dependency file to output.
- tmpdepfile Temporary file to use when outputing dependencies.
- libtool Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
- exit $?
- ;;
- -v | --v*)
- echo "depcomp $scriptversion"
- exit $?
- ;;
-esac
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
- echo "depcomp: Variables source, object and depmode must be set" 1>&2
- exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
- sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Some modes work just like other modes, but use different flags. We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write. Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
- # HP compiler uses -M and no extra arg.
- gccflag=-M
- depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
- # This is just like dashmstdout with a different argument.
- dashmflag=-xM
- depmode=dashmstdout
-fi
-
-cygpath_u="cygpath -u -f -"
-if test "$depmode" = msvcmsys; then
- # This is just like msvisualcpp but w/o cygpath translation.
- # Just convert the backslash-escaped backslashes to single forward
- # slashes to satisfy depend.m4
- cygpath_u="sed s,\\\\\\\\,/,g"
- depmode=msvisualcpp
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want. Yay! Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff. Hmm.
-## Unfortunately, FreeBSD c89 acceptance of flags depends upon
-## the command line argument order; so add the flags where they
-## appear in depend2.am. Note that the slowdown incurred here
-## affects only configure: in makefiles, %FASTDEP% shortcuts this.
- for arg
- do
- case $arg in
- -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
- *) set fnord "$@" "$arg" ;;
- esac
- shift # fnord
- shift # $arg
- done
- "$@"
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- mv "$tmpdepfile" "$depfile"
- ;;
-
-gcc)
-## There are various ways to get dependency output from gcc. Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-## up in a subdir. Having to rename by hand is ugly.
-## (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-## -MM, not -M (despite what the docs say).
-## - Using -M directly means running the compiler twice (even worse
-## than renaming).
- if test -z "$gccflag"; then
- gccflag=-MD,
- fi
- "$@" -Wp,"$gccflag$tmpdepfile"
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
-## The second -e expression handles DOS-style file names with drive letters.
- sed -e 's/^[^:]*: / /' \
- -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header). We avoid this by adding
-## dummy dependencies for each header file. Too bad gcc doesn't do
-## this for us directly.
- tr ' ' '
-' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'. On the theory
-## that the space means something, we add a space to the output as
-## well.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-hp)
- # This case exists only to let depend.m4 do its work. It works by
- # looking at the text of this script. This case will never be run,
- # since it is checked for above.
- exit 1
- ;;
-
-sgi)
- if test "$libtool" = yes; then
- "$@" "-Wp,-MDupdate,$tmpdepfile"
- else
- "$@" -MDupdate "$tmpdepfile"
- fi
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
-
- if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
- echo "$object : \\" > "$depfile"
-
- # Clip off the initial element (the dependent). Don't try to be
- # clever and replace this with sed code, as IRIX sed won't handle
- # lines with more than a fixed number of characters (4096 in
- # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
- # the IRIX cc adds comments like `#:fec' to the end of the
- # dependency line.
- tr ' ' '
-' < "$tmpdepfile" \
- | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
- tr '
-' ' ' >> "$depfile"
- echo >> "$depfile"
-
- # The second pass generates a dummy entry for each header file.
- tr ' ' '
-' < "$tmpdepfile" \
- | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
- >> "$depfile"
- else
- # The sourcefile does not contain any dependencies, so just
- # store a dummy comment line, to avoid errors with the Makefile
- # "include basename.Plo" scheme.
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile"
- ;;
-
-aix)
- # The C for AIX Compiler uses -M and outputs the dependencies
- # in a .u file. In older versions, this file always lives in the
- # current directory. Also, the AIX compiler puts `$object:' at the
- # start of each line; $object doesn't have directory information.
- # Version 6 uses the directory in both cases.
- dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
- test "x$dir" = "x$object" && dir=
- base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
- if test "$libtool" = yes; then
- tmpdepfile1=$dir$base.u
- tmpdepfile2=$base.u
- tmpdepfile3=$dir.libs/$base.u
- "$@" -Wc,-M
- else
- tmpdepfile1=$dir$base.u
- tmpdepfile2=$dir$base.u
- tmpdepfile3=$dir$base.u
- "$@" -M
- fi
- stat=$?
-
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
- do
- test -f "$tmpdepfile" && break
- done
- if test -f "$tmpdepfile"; then
- # Each line is of the form `foo.o: dependent.h'.
- # Do two passes, one to just change these to
- # `$object: dependent.h' and one to simply `dependent.h:'.
- sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
- # That's a tab and a space in the [].
- sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
- else
- # The sourcefile does not contain any dependencies, so just
- # store a dummy comment line, to avoid errors with the Makefile
- # "include basename.Plo" scheme.
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile"
- ;;
-
-icc)
- # Intel's C compiler understands `-MD -MF file'. However on
- # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
- # ICC 7.0 will fill foo.d with something like
- # foo.o: sub/foo.c
- # foo.o: sub/foo.h
- # which is wrong. We want:
- # sub/foo.o: sub/foo.c
- # sub/foo.o: sub/foo.h
- # sub/foo.c:
- # sub/foo.h:
- # ICC 7.1 will output
- # foo.o: sub/foo.c sub/foo.h
- # and will wrap long lines using \ :
- # foo.o: sub/foo.c ... \
- # sub/foo.h ... \
- # ...
-
- "$@" -MD -MF "$tmpdepfile"
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
- # Each line is of the form `foo.o: dependent.h',
- # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
- # Do two passes, one to just change these to
- # `$object: dependent.h' and one to simply `dependent.h:'.
- sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
- # Some versions of the HPUX 10.20 sed can't process this invocation
- # correctly. Breaking it into two sed invocations is a workaround.
- sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
- sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-hp2)
- # The "hp" stanza above does not work with aCC (C++) and HP's ia64
- # compilers, which have integrated preprocessors. The correct option
- # to use with these is +Maked; it writes dependencies to a file named
- # 'foo.d', which lands next to the object file, wherever that
- # happens to be.
- # Much of this is similar to the tru64 case; see comments there.
- dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
- test "x$dir" = "x$object" && dir=
- base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
- if test "$libtool" = yes; then
- tmpdepfile1=$dir$base.d
- tmpdepfile2=$dir.libs/$base.d
- "$@" -Wc,+Maked
- else
- tmpdepfile1=$dir$base.d
- tmpdepfile2=$dir$base.d
- "$@" +Maked
- fi
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile1" "$tmpdepfile2"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
- do
- test -f "$tmpdepfile" && break
- done
- if test -f "$tmpdepfile"; then
- sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
- # Add `dependent.h:' lines.
- sed -ne '2,${
- s/^ *//
- s/ \\*$//
- s/$/:/
- p
- }' "$tmpdepfile" >> "$depfile"
- else
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile" "$tmpdepfile2"
- ;;
-
-tru64)
- # The Tru64 compiler uses -MD to generate dependencies as a side
- # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
- # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
- # dependencies in `foo.d' instead, so we check for that too.
- # Subdirectories are respected.
- dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
- test "x$dir" = "x$object" && dir=
- base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
-
- if test "$libtool" = yes; then
- # With Tru64 cc, shared objects can also be used to make a
- # static library. This mechanism is used in libtool 1.4 series to
- # handle both shared and static libraries in a single compilation.
- # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
- #
- # With libtool 1.5 this exception was removed, and libtool now
- # generates 2 separate objects for the 2 libraries. These two
- # compilations output dependencies in $dir.libs/$base.o.d and
- # in $dir$base.o.d. We have to check for both files, because
- # one of the two compilations can be disabled. We should prefer
- # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
- # automatically cleaned when .libs/ is deleted, while ignoring
- # the former would cause a distcleancheck panic.
- tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
- tmpdepfile2=$dir$base.o.d # libtool 1.5
- tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
- tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
- "$@" -Wc,-MD
- else
- tmpdepfile1=$dir$base.o.d
- tmpdepfile2=$dir$base.d
- tmpdepfile3=$dir$base.d
- tmpdepfile4=$dir$base.d
- "$@" -MD
- fi
-
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
- do
- test -f "$tmpdepfile" && break
- done
- if test -f "$tmpdepfile"; then
- sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
- # That's a tab and a space in the [].
- sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
- else
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile"
- ;;
-
-#nosideeffect)
- # This comment above is used by automake to tell side-effect
- # dependency tracking mechanisms from slower ones.
-
-dashmstdout)
- # Important note: in order to support this mode, a compiler *must*
- # always write the preprocessed file to stdout, regardless of -o.
- "$@" || exit $?
-
- # Remove the call to Libtool.
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
-
- # Remove `-o $object'.
- IFS=" "
- for arg
- do
- case $arg in
- -o)
- shift
- ;;
- $object)
- shift
- ;;
- *)
- set fnord "$@" "$arg"
- shift # fnord
- shift # $arg
- ;;
- esac
- done
-
- test -z "$dashmflag" && dashmflag=-M
- # Require at least two characters before searching for `:'
- # in the target name. This is to cope with DOS-style filenames:
- # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
- "$@" $dashmflag |
- sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
- rm -f "$depfile"
- cat < "$tmpdepfile" > "$depfile"
- tr ' ' '
-' < "$tmpdepfile" | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-dashXmstdout)
- # This case only exists to satisfy depend.m4. It is never actually
- # run, as this mode is specially recognized in the preamble.
- exit 1
- ;;
-
-makedepend)
- "$@" || exit $?
- # Remove any Libtool call
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
- # X makedepend
- shift
- cleared=no eat=no
- for arg
- do
- case $cleared in
- no)
- set ""; shift
- cleared=yes ;;
- esac
- if test $eat = yes; then
- eat=no
- continue
- fi
- case "$arg" in
- -D*|-I*)
- set fnord "$@" "$arg"; shift ;;
- # Strip any option that makedepend may not understand. Remove
- # the object too, otherwise makedepend will parse it as a source file.
- -arch)
- eat=yes ;;
- -*|$object)
- ;;
- *)
- set fnord "$@" "$arg"; shift ;;
- esac
- done
- obj_suffix=`echo "$object" | sed 's/^.*\././'`
- touch "$tmpdepfile"
- ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
- rm -f "$depfile"
- cat < "$tmpdepfile" > "$depfile"
- sed '1,2d' "$tmpdepfile" | tr ' ' '
-' | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile" "$tmpdepfile".bak
- ;;
-
-cpp)
- # Important note: in order to support this mode, a compiler *must*
- # always write the preprocessed file to stdout.
- "$@" || exit $?
-
- # Remove the call to Libtool.
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
-
- # Remove `-o $object'.
- IFS=" "
- for arg
- do
- case $arg in
- -o)
- shift
- ;;
- $object)
- shift
- ;;
- *)
- set fnord "$@" "$arg"
- shift # fnord
- shift # $arg
- ;;
- esac
- done
-
- "$@" -E |
- sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
- -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
- sed '$ s: \\$::' > "$tmpdepfile"
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- cat < "$tmpdepfile" >> "$depfile"
- sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-msvisualcpp)
- # Important note: in order to support this mode, a compiler *must*
- # always write the preprocessed file to stdout.
- "$@" || exit $?
-
- # Remove the call to Libtool.
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
-
- IFS=" "
- for arg
- do
- case "$arg" in
- -o)
- shift
- ;;
- $object)
- shift
- ;;
- "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
- set fnord "$@"
- shift
- shift
- ;;
- *)
- set fnord "$@" "$arg"
- shift
- shift
- ;;
- esac
- done
- "$@" -E 2>/dev/null |
- sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
- echo " " >> "$depfile"
- sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-msvcmsys)
- # This case exists only to let depend.m4 do its work. It works by
- # looking at the text of this script. This case will never be run,
- # since it is checked for above.
- exit 1
- ;;
-
-none)
- exec "$@"
- ;;
-
-*)
- echo "Unknown depmode $depmode" 1>&2
- exit 1
- ;;
-esac
-
-exit 0
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
-# time-stamp-end: "; # UTC"
-# End:
+++ /dev/null
-# for fbcode compile, run leveldb/fbcode.sh
-
-autoconf
-./configure
-
-# for running fbcode, edit config.h and comment out the followng two lines:
-// #define HAVE_LIBLZO2 1
-// #define HAVE_LIBZ 1
-edit Makefile and change "UNITTEST_LIBS = -llzo2 -lz" to "UNITTEST_LIBS = -lz"
-
-make top_builddir="." LIBTOOL=libtool -e "CPPFLAGS=-DNDEBUG" clean all
-
+++ /dev/null
-Snappy compressed format description
-Last revised: 2011-10-05
-
-
-This is not a formal specification, but should suffice to explain most
-relevant parts of how the Snappy format works. It is originally based on
-text by Zeev Tarantov.
-
-Snappy is a LZ77-type compressor with a fixed, byte-oriented encoding.
-There is no entropy encoder backend nor framing layer -- the latter is
-assumed to be handled by other parts of the system.
-
-This document only describes the format, not how the Snappy compressor nor
-decompressor actually works. The correctness of the decompressor should not
-depend on implementation details of the compressor, and vice versa.
-
-
-1. Preamble
-
-The stream starts with the uncompressed length (up to a maximum of 2^32 - 1),
-stored as a little-endian varint. Varints consist of a series of bytes,
-where the lower 7 bits are data and the upper bit is set iff there are
-more bytes to be read. In other words, an uncompressed length of 64 would
-be stored as 0x40, and an uncompressed length of 2097150 (0x1FFFFE)
-would be stored as 0xFE 0xFF 0x7F.
-
-
-2. The compressed stream itself
-
-There are two types of elements in a Snappy stream: Literals and
-copies (backreferences). There is no restriction on the order of elements,
-except that the stream naturally cannot start with a copy. (Having
-two literals in a row is never optimal from a compression point of
-view, but nevertheless fully permitted.) Each element starts with a tag byte,
-and the lower two bits of this tag byte signal what type of element will
-follow:
-
- 00: Literal
- 01: Copy with 1-byte offset
- 10: Copy with 2-byte offset
- 11: Copy with 4-byte offset
-
-The interpretation of the upper six bits are element-dependent.
-
-
-2.1. Literals (00)
-
-Literals are uncompressed data stored directly in the byte stream.
-The literal length is stored differently depending on the length
-of the literal:
-
- - For literals up to and including 60 bytes in length, the upper
- six bits of the tag byte contain (len-1). The literal follows
- immediately thereafter in the bytestream.
- - For longer literals, the (len-1) value is stored after the tag byte,
- little-endian. The upper six bits of the tag byte describe how
- many bytes are used for the length; 60, 61, 62 or 63 for
- 1-4 bytes, respectively. The literal itself follows after the
- length.
-
-
-2.2. Copies
-
-Copies are references back into previous decompressed data, telling
-the decompressor to reuse data it has previously decoded.
-They encode two values: The _offset_, saying how many bytes back
-from the current position to read, and the _length_, how many bytes
-to copy. Offsets of zero can be encoded, but are not legal;
-similarly, it is possible to encode backreferences that would
-go past the end of the block (offset > current decompressed position),
-which is also nonsensical and thus not allowed.
-
-As in most LZ77-based compressors, the length can be larger than the offset,
-yielding a form of run-length encoding (RLE). For instance,
-"xababab" could be encoded as
-
- <literal: "xab"> <copy: offset=2 length=4>
-
-Note that since the current Snappy compressor works in 32 kB
-blocks and does not do matching across blocks, it will never produce
-a bitstream with offsets larger than about 32768. However, the
-decompressor should not rely on this, as it may change in the future.
-
-There are several different kinds of copy elements, depending on
-the amount of bytes to be copied (length), and how far back the
-data to be copied is (offset).
-
-
-2.2.1. Copy with 1-byte offset (01)
-
-These elements can encode lengths between [4..11] bytes and offsets
-between [0..2047] bytes. (len-4) occupies three bits and is stored
-in bits [2..4] of the tag byte. The offset occupies 11 bits, of which the
-upper three are stored in the upper three bits ([5..7]) of the tag byte,
-and the lower eight are stored in a byte following the tag byte.
-
-
-2.2.2. Copy with 2-byte offset (10)
-
-These elements can encode lengths between [1..64] and offsets from
-[0..65535]. (len-1) occupies six bits and is stored in the upper
-six bits ([2..7]) of the tag byte. The offset is stored as a
-little-endian 16-bit integer in the two bytes following the tag byte.
-
-
-2.2.3. Copy with 4-byte offset (11)
-
-These are like the copies with 2-byte offsets (see previous subsection),
-except that the offset is stored as a 32-bit integer instead of a
-16-bit integer (and thus will occupy four bytes).
+++ /dev/null
-Snappy framing format description
-Last revised: 2011-12-15
-
-This format decribes a framing format for Snappy, allowing compressing to
-files or streams that can then more easily be decompressed without having
-to hold the entire stream in memory. It also provides data checksums to
-help verify integrity. It does not provide metadata checksums, so it does
-not protect against e.g. all forms of truncations.
-
-Implementation of the framing format is optional for Snappy compressors and
-decompressor; it is not part of the Snappy core specification.
-
-
-1. General structure
-
-The file consists solely of chunks, lying back-to-back with no padding
-in between. Each chunk consists first a single byte of chunk identifier,
-then a two-byte little-endian length of the chunk in bytes (from 0 to 65535,
-inclusive), and then the data if any. The three bytes of chunk header is not
-counted in the data length.
-
-The different chunk types are listed below. The first chunk must always
-be the stream identifier chunk (see section 4.1, below). The stream
-ends when the file ends -- there is no explicit end-of-file marker.
-
-
-2. File type identification
-
-The following identifiers for this format are recommended where appropriate.
-However, note that none have been registered officially, so this is only to
-be taken as a guideline. We use "Snappy framed" to distinguish between this
-format and raw Snappy data.
-
- File extension: .sz
- MIME type: application/x-snappy-framed
- HTTP Content-Encoding: x-snappy-framed
-
-
-3. Checksum format
-
-Some chunks have data protected by a checksum (the ones that do will say so
-explicitly). The checksums are always masked CRC-32Cs.
-
-A description of CRC-32C can be found in RFC 3720, section 12.1, with
-examples in section B.4.
-
-Checksums are not stored directly, but masked, as checksumming data and
-then its own checksum can be problematic. The masking is the same as used
-in Apache Hadoop: Rotate the checksum by 15 bits, then add the constant
-0xa282ead8 (using wraparound as normal for unsigned integers). This is
-equivalent to the following C code:
-
- uint32_t mask_checksum(uint32_t x) {
- return ((x >> 15) | (x << 17)) + 0xa282ead8;
- }
-
-Note that the masking is reversible.
-
-The checksum is always stored as a four bytes long integer, in little-endian.
-
-
-4. Chunk types
-
-The currently supported chunk types are described below. The list may
-be extended in the future.
-
-
-4.1. Stream identifier (chunk type 0xff)
-
-The stream identifier is always the first element in the stream.
-It is exactly six bytes long and contains "sNaPpY" in ASCII. This means that
-a valid Snappy framed stream always starts with the bytes
-
- 0xff 0x06 0x00 0x73 0x4e 0x61 0x50 0x70 0x59
-
-The stream identifier chunk can come multiple times in the stream besides
-the first; if such a chunk shows up, it should simply be ignored, assuming
-it has the right length and contents. This allows for easy concatenation of
-compressed files without the need for re-framing.
-
-
-4.2. Compressed data (chunk type 0x00)
-
-Compressed data chunks contain a normal Snappy compressed bitstream;
-see the compressed format specification. The compressed data is preceded by
-the CRC-32C (see section 3) of the _uncompressed_ data.
-
-Note that the data portion of the chunk, i.e., the compressed contents,
-can be at most 65531 bytes (2^16 - 1, minus the checksum).
-However, we place an additional restriction that the uncompressed data
-in a chunk must be no longer than 32768 bytes. This allows consumers to
-easily use small fixed-size buffers.
-
-
-4.3. Uncompressed data (chunk type 0x01)
-
-Uncompressed data chunks allow a compressor to send uncompressed,
-raw data; this is useful if, for instance, uncompressible or
-near-incompressible data is detected, and faster decompression is desired.
-
-As in the compressed chunks, the data is preceded by its own masked
-CRC-32C (see section 3).
-
-An uncompressed data chunk, like compressed data chunks, should contain
-no more than 32768 data bytes, so the maximum legal chunk length with the
-checksum is 32772.
-
-
-4.4. Reserved unskippable chunks (chunk types 0x02-0x7f)
-
-These are reserved for future expansion. A decoder that sees such a chunk
-should immediately return an error, as it must assume it cannot decode the
-stream correctly.
-
-Future versions of this specification may define meanings for these chunks.
-
-
-4.5. Reserved skippable chunks (chunk types 0x80-0xfe)
-
-These are also reserved for future expansion, but unlike the chunks
-described in 4.4, a decoder seeing these must skip them and continue
-decoding.
-
-Future versions of this specification may define meanings for these chunks.
+++ /dev/null
-#!/bin/sh
-# install - install a program, script, or datafile
-
-scriptversion=2009-04-28.21; # UTC
-
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-
-nl='
-'
-IFS=" "" $nl"
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit=${DOITPROG-}
-if test -z "$doit"; then
- doit_exec=exec
-else
- doit_exec=$doit
-fi
-
-# Put in absolute file names if you don't have them in your path;
-# or use environment vars.
-
-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
-
-posix_glob='?'
-initialize_posix_glob='
- test "$posix_glob" != "?" || {
- if (set -f) 2>/dev/null; then
- posix_glob=
- else
- posix_glob=:
- fi
- }
-'
-
-posix_mkdir=
-
-# Desired mode of installed file.
-mode=0755
-
-chgrpcmd=
-chmodcmd=$chmodprog
-chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
-stripcmd=
-
-src=
-dst=
-dir_arg=
-dst_arg=
-
-copy_on_change=false
-no_target_directory=
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
- or: $0 [OPTION]... SRCFILES... DIRECTORY
- or: $0 [OPTION]... -t DIRECTORY SRCFILES...
- or: $0 [OPTION]... -d DIRECTORIES...
-
-In the 1st form, copy SRCFILE to DSTFILE.
-In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
-In the 4th, create DIRECTORIES.
-
-Options:
- --help display this help and exit.
- --version display version info and exit.
-
- -c (ignored)
- -C install only if different (preserve the last data modification time)
- -d create directories instead of installing files.
- -g GROUP $chgrpprog installed files to GROUP.
- -m MODE $chmodprog installed files to MODE.
- -o USER $chownprog installed files to USER.
- -s $stripprog installed files.
- -t DIRECTORY install into DIRECTORY.
- -T report an error if DSTFILE is a directory.
-
-Environment variables override the default commands:
- CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
- RMPROG STRIPPROG
-"
-
-while test $# -ne 0; do
- case $1 in
- -c) ;;
-
- -C) copy_on_change=true;;
-
- -d) dir_arg=true;;
-
- -g) chgrpcmd="$chgrpprog $2"
- shift;;
-
- --help) echo "$usage"; exit $?;;
-
- -m) mode=$2
- case $mode in
- *' '* | *' '* | *'
-'* | *'*'* | *'?'* | *'['*)
- echo "$0: invalid mode: $mode" >&2
- exit 1;;
- esac
- shift;;
-
- -o) chowncmd="$chownprog $2"
- shift;;
-
- -s) stripcmd=$stripprog;;
-
- -t) dst_arg=$2
- shift;;
-
- -T) no_target_directory=true;;
-
- --version) echo "$0 $scriptversion"; exit $?;;
-
- --) shift
- break;;
-
- -*) echo "$0: invalid option: $1" >&2
- exit 1;;
-
- *) break;;
- esac
- shift
-done
-
-if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
- # When -d is used, all remaining arguments are directories to create.
- # When -t is used, the destination is already specified.
- # Otherwise, the last argument is the destination. Remove it from $@.
- for arg
- do
- if test -n "$dst_arg"; then
- # $@ is not empty: it contains at least $arg.
- set fnord "$@" "$dst_arg"
- shift # fnord
- fi
- shift # arg
- dst_arg=$arg
- done
-fi
-
-if test $# -eq 0; then
- if test -z "$dir_arg"; then
- echo "$0: no input file specified." >&2
- exit 1
- fi
- # It's OK to call `install-sh -d' without argument.
- # This can happen when creating conditional directories.
- exit 0
-fi
-
-if test -z "$dir_arg"; then
- trap '(exit $?); exit' 1 2 13 15
-
- # Set umask so as not to create temps with too-generous modes.
- # However, 'strip' requires both read and write access to temps.
- case $mode in
- # Optimize common cases.
- *644) cp_umask=133;;
- *755) cp_umask=22;;
-
- *[0-7])
- if test -z "$stripcmd"; then
- u_plus_rw=
- else
- u_plus_rw='% 200'
- fi
- cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
- *)
- if test -z "$stripcmd"; then
- u_plus_rw=
- else
- u_plus_rw=,u+rw
- fi
- cp_umask=$mode$u_plus_rw;;
- esac
-fi
-
-for src
-do
- # Protect names starting with `-'.
- case $src in
- -*) src=./$src;;
- esac
-
- if test -n "$dir_arg"; then
- dst=$src
- dstdir=$dst
- test -d "$dstdir"
- dstdir_status=$?
- else
-
- # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
- # might cause directories to be created, which would be especially bad
- # if $src (and thus $dsttmp) contains '*'.
- if test ! -f "$src" && test ! -d "$src"; then
- echo "$0: $src does not exist." >&2
- exit 1
- fi
-
- if test -z "$dst_arg"; then
- echo "$0: no destination specified." >&2
- exit 1
- fi
-
- dst=$dst_arg
- # Protect names starting with `-'.
- case $dst in
- -*) dst=./$dst;;
- esac
-
- # If destination is a directory, append the input filename; won't work
- # if double slashes aren't ignored.
- if test -d "$dst"; then
- if test -n "$no_target_directory"; then
- echo "$0: $dst_arg: Is a directory" >&2
- exit 1
- fi
- dstdir=$dst
- dst=$dstdir/`basename "$src"`
- dstdir_status=0
- else
- # Prefer dirname, but fall back on a substitute if dirname fails.
- dstdir=`
- (dirname "$dst") 2>/dev/null ||
- expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$dst" : 'X\(//\)[^/]' \| \
- X"$dst" : 'X\(//\)$' \| \
- X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
- echo X"$dst" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
- s//\1/
- q
- }
- /^X\(\/\/\)[^/].*/{
- s//\1/
- q
- }
- /^X\(\/\/\)$/{
- s//\1/
- q
- }
- /^X\(\/\).*/{
- s//\1/
- q
- }
- s/.*/./; q'
- `
-
- test -d "$dstdir"
- dstdir_status=$?
- fi
- fi
-
- obsolete_mkdir_used=false
-
- if test $dstdir_status != 0; then
- case $posix_mkdir in
- '')
- # Create intermediate dirs using mode 755 as modified by the umask.
- # This is like FreeBSD 'install' as of 1997-10-28.
- umask=`umask`
- case $stripcmd.$umask in
- # Optimize common cases.
- *[2367][2367]) mkdir_umask=$umask;;
- .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
-
- *[0-7])
- mkdir_umask=`expr $umask + 22 \
- - $umask % 100 % 40 + $umask % 20 \
- - $umask % 10 % 4 + $umask % 2
- `;;
- *) mkdir_umask=$umask,go-w;;
- esac
-
- # With -d, create the new directory with the user-specified mode.
- # Otherwise, rely on $mkdir_umask.
- if test -n "$dir_arg"; then
- mkdir_mode=-m$mode
- else
- mkdir_mode=
- fi
-
- posix_mkdir=false
- case $umask in
- *[123567][0-7][0-7])
- # POSIX mkdir -p sets u+wx bits regardless of umask, which
- # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
- ;;
- *)
- tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
- trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
-
- if (umask $mkdir_umask &&
- exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
- then
- if test -z "$dir_arg" || {
- # Check for POSIX incompatibilities with -m.
- # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
- # other-writeable bit of parent directory when it shouldn't.
- # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
- ls_ld_tmpdir=`ls -ld "$tmpdir"`
- case $ls_ld_tmpdir in
- d????-?r-*) different_mode=700;;
- d????-?--*) different_mode=755;;
- *) false;;
- esac &&
- $mkdirprog -m$different_mode -p -- "$tmpdir" && {
- ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
- test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
- }
- }
- then posix_mkdir=:
- fi
- rmdir "$tmpdir/d" "$tmpdir"
- else
- # Remove any dirs left behind by ancient mkdir implementations.
- rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
- fi
- trap '' 0;;
- esac;;
- esac
-
- if
- $posix_mkdir && (
- umask $mkdir_umask &&
- $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
- )
- then :
- else
-
- # The umask is ridiculous, or mkdir does not conform to POSIX,
- # or it failed possibly due to a race condition. Create the
- # directory the slow way, step by step, checking for races as we go.
-
- case $dstdir in
- /*) prefix='/';;
- -*) prefix='./';;
- *) prefix='';;
- esac
-
- eval "$initialize_posix_glob"
-
- oIFS=$IFS
- IFS=/
- $posix_glob set -f
- set fnord $dstdir
- shift
- $posix_glob set +f
- IFS=$oIFS
-
- prefixes=
-
- for d
- do
- test -z "$d" && continue
-
- prefix=$prefix$d
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- prefixes=
- else
- if $posix_mkdir; then
- (umask=$mkdir_umask &&
- $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
- # Don't fail if two instances are running concurrently.
- test -d "$prefix" || exit 1
- else
- case $prefix in
- *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
- *) qprefix=$prefix;;
- esac
- prefixes="$prefixes '$qprefix'"
- fi
- fi
- prefix=$prefix/
- done
-
- if test -n "$prefixes"; then
- # Don't fail if two instances are running concurrently.
- (umask $mkdir_umask &&
- eval "\$doit_exec \$mkdirprog $prefixes") ||
- test -d "$dstdir" || exit 1
- obsolete_mkdir_used=true
- fi
- fi
- fi
-
- if test -n "$dir_arg"; then
- { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
- { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
- { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
- test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
- else
-
- # Make a couple of temp file names in the proper directory.
- dsttmp=$dstdir/_inst.$$_
- rmtmp=$dstdir/_rm.$$_
-
- # Trap to clean up those temp files at exit.
- trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
-
- # Copy the file name to the temp name.
- (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
-
- # and set any options; do chmod last to preserve setuid bits.
- #
- # If any of these fail, we abort the whole thing. If we want to
- # ignore errors from any of these, just make sure not to ignore
- # errors from the above "$doit $cpprog $src $dsttmp" command.
- #
- { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
- { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
- { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
- { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
-
- # If -C, don't bother to copy if it wouldn't change the file.
- if $copy_on_change &&
- old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
- new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
-
- eval "$initialize_posix_glob" &&
- $posix_glob set -f &&
- set X $old && old=:$2:$4:$5:$6 &&
- set X $new && new=:$2:$4:$5:$6 &&
- $posix_glob set +f &&
-
- test "$old" = "$new" &&
- $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
- then
- rm -f "$dsttmp"
- else
- # Rename the file to the real destination.
- $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
-
- # The rename failed, perhaps because mv can't rename something else
- # to itself, or perhaps because mv is so ancient that it does not
- # support -f.
- {
- # Now remove or move aside any old file at destination location.
- # We try this two ways since rm can't unlink itself on some
- # systems and the destination file might be busy for other
- # reasons. In this case, the final cleanup might fail but the new
- # file should still install successfully.
- {
- test ! -f "$dst" ||
- $doit $rmcmd -f "$dst" 2>/dev/null ||
- { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
- { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
- } ||
- { echo "$0: cannot unlink or rename $dst" >&2
- (exit 1); exit 1
- }
- } &&
-
- # Now rename the file to the real destination.
- $doit $mvcmd "$dsttmp" "$dst"
- }
- fi || exit 1
-
- trap '' 0
- fi
-done
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
-# time-stamp-end: "; # UTC"
-# End:
+++ /dev/null
-# libsnappy.la - a libtool library file
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='libsnappy.so.1'
-
-# Names of this library.
-library_names='libsnappy.so.1.0.5 libsnappy.so.1 libsnappy.so'
-
-# The name of the static archive.
-old_library='libsnappy.a'
-
-# Linker flags that can not go in dependency_libs.
-inherited_linker_flags=''
-
-# Libraries that this one depends upon.
-dependency_libs=''
-
-# Names of additional weak libraries provided by this library
-weak_library_names=''
-
-# Version information for libsnappy.
-current=1
-age=0
-revision=5
-
-# Is this an already installed library?
-installed=no
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=no
-
-# Files to dlopen/dlpreopen
-dlopen=''
-dlpreopen=''
-
-# Directory that this library needs to be installed in:
-libdir='/usr/local/lib'
+++ /dev/null
-#! /bin/sh
-
-# libtool - Provide generalized library-building support services.
-# Generated automatically by config.status (snappy) 1.0.5
-# Libtool was configured on host devrs306.snc6.facebook.com:
-# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-#
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-# 2006, 2007, 2008 Free Software Foundation, Inc.
-# Written by Gordon Matzigkeit, 1996
-#
-# This file is part of GNU Libtool.
-#
-# GNU Libtool is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
-# obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-
-# The names of the tagged configurations supported by this script.
-available_tags="CXX "
-
-# ### BEGIN LIBTOOL CONFIG
-
-# Which release of libtool.m4 was used?
-macro_version=2.2.6b
-macro_revision=1.3017
-
-# Whether or not to build shared libraries.
-build_libtool_libs=yes
-
-# Whether or not to build static libraries.
-build_old_libs=yes
-
-# What type of objects to build.
-pic_mode=default
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-# Whether or not to optimize for fast installation.
-fast_install=yes
-
-# The host system.
-host_alias=
-host=x86_64-unknown-linux-gnu
-host_os=linux-gnu
-
-# The build system.
-build_alias=
-build=x86_64-unknown-linux-gnu
-build_os=linux-gnu
-
-# A sed program that does not truncate output.
-SED="/bin/sed"
-
-# Sed that helps us avoid accidentally triggering echo(1) options like -n.
-Xsed="$SED -e 1s/^X//"
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-# A grep program that handles long lines.
-GREP="/bin/grep"
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-# An ERE matcher.
-EGREP="/bin/grep -E"
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-# A literal string matcher.
-FGREP="/bin/grep -F"
-
-# A BSD- or MS-compatible name lister.
-NM="/usr/bin/nm -B"
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-# Whether we need soft or hard links.
-LN_S="ln -s"
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-# What is the maximum length of a command?
-max_cmd_len=98304
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-# Object file suffix (normally "o").
-objext=o
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-# Executable file suffix (normally "").
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-# whether the shell understands "unset".
-lt_unset=unset
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-# turn spaces into newlines.
-SP2NL="tr \\040 \\012"
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-# turn newlines into spaces.
-NL2SP="tr \\015\\012 \\040\\040"
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-# How to create reloadable object files.
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-reload_cmds="\$LD\$reload_flag -o \$output\$reload_objs"
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-# An object symbol dumper.
-OBJDUMP="objdump"
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-# Method to check whether dependent libraries are shared objects.
-deplibs_check_method="pass_all"
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-# Command to use when deplibs_check_method == "file_magic".
-file_magic_cmd="\$MAGIC_CMD"
-
-# The archiver.
-AR="ar"
-AR_FLAGS="cru"
-
-# A symbol stripping program.
-STRIP="strip"
-
-# Commands used to install an old-style archive.
-RANLIB="ranlib"
-old_postinstall_cmds="chmod 644 \$oldlib~\$RANLIB \$oldlib"
-old_postuninstall_cmds=""
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-# A C compiler.
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-# LTCC compiler flags.
-LTCFLAGS="-g -O2"
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-# Take the output of nm and produce a listing of raw symbols and C names.
-global_symbol_pipe="sed -n -e 's/^.*[ ]\\([ABCDGIRSTW][ABCDGIRSTW]*\\)[ ][ ]*\\([_A-Za-z][_A-Za-z0-9]*\\)\$/\\1 \\2 \\2/p'"
-
-# Transform the output of nm in a proper C declaration.
-global_symbol_to_cdecl="sed -n -e 's/^T .* \\(.*\\)\$/extern int \\1();/p' -e 's/^[ABCDGIRSTW]* .* \\(.*\\)\$/extern char \\1;/p'"
-
-# Transform the output of nm in a C name address pair.
-global_symbol_to_c_name_address="sed -n -e 's/^: \\([^ ]*\\) \$/ {\\\"\\1\\\", (void *) 0},/p' -e 's/^[ABCDGIRSTW]* \\([^ ]*\\) \\([^ ]*\\)\$/ {\"\\2\", (void *) \\&\\2},/p'"
-
-# Transform the output of nm in a C name address pair when lib prefix is needed.
-global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \\([^ ]*\\) \$/ {\\\"\\1\\\", (void *) 0},/p' -e 's/^[ABCDGIRSTW]* \\([^ ]*\\) \\(lib[^ ]*\\)\$/ {\"\\2\", (void *) \\&\\2},/p' -e 's/^[ABCDGIRSTW]* \\([^ ]*\\) \\([^ ]*\\)\$/ {\"lib\\2\", (void *) \\&\\2},/p'"
-
-# The name of the directory that contains temporary libtool files.
-objdir=.libs
-
-# Shell to use when invoking shell scripts.
-SHELL="/bin/sh"
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-# An echo program that does not interpret backslashes.
-ECHO="echo"
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-# Used to examine libraries when file_magic_cmd begins with "file".
-MAGIC_CMD=file
-
-# Must we lock files when doing compilation?
-need_locks="no"
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-# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
-DSYMUTIL=""
-
-# Tool to change global to local symbols on Mac OS X.
-NMEDIT=""
-
-# Tool to manipulate fat objects and archives on Mac OS X.
-LIPO=""
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-# ldd/readelf like tool for Mach-O binaries on Mac OS X.
-OTOOL=""
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-# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
-OTOOL64=""
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-# Old archive suffix (normally "a").
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-# Do we need the "lib" prefix for modules?
-need_lib_prefix=no
-
-# Do we need a version for libraries?
-need_version=no
-
-# Library versioning type.
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-# Shared library runtime path variable.
-runpath_var=LD_RUN_PATH
-
-# Shared library path variable.
-shlibpath_var=LD_LIBRARY_PATH
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-# Is shlibpath searched before the hard-coded library search path?
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-# Format of library name prefix.
-libname_spec="lib\$name"
-
-# List of archive names. First name is the real one, the rest are links.
-# The last name is the one that the linker finds with -lNAME
-library_names_spec="\${libname}\${release}\${shared_ext}\$versuffix \${libname}\${release}\${shared_ext}\$major \$libname\${shared_ext}"
-
-# The coded name of the library, if different from the real name.
-soname_spec="\${libname}\${release}\${shared_ext}\$major"
-
-# Command to use after installation of a shared archive.
-postinstall_cmds=""
-
-# Command to use after uninstallation of a shared archive.
-postuninstall_cmds=""
-
-# Commands used to finish a libtool library installation in a directory.
-finish_cmds="PATH=\\\"\\\$PATH:/sbin\\\" ldconfig -n \$libdir"
-
-# As "finish_cmds", except a single script fragment to be evaled but
-# not shown.
-finish_eval=""
-
-# Whether we should hardcode library paths into libraries.
-hardcode_into_libs=yes
-
-# Compile-time system search path for libraries.
-sys_lib_search_path_spec="/usr/lib/gcc/x86_64-redhat-linux/4.1.2 /usr/lib64 /lib64"
-
-# Run-time system search path for libraries.
-sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib64/R/lib /usr/local/lib64 /usr/lib64/mysql /usr/lib/oracle/11.1/client64/lib/ /usr/local/lib /usr/lib/qt-3.3/lib /usr/lib64/qt-3.3/lib /usr/local/lib "
-
-# Whether dlopen is supported.
-dlopen_support=unknown
-
-# Whether dlopen of programs is supported.
-dlopen_self=unknown
-
-# Whether dlopen of statically linked programs is supported.
-dlopen_self_static=unknown
-
-# Commands to strip libraries.
-old_striplib="strip --strip-debug"
-striplib="strip --strip-unneeded"
-
-
-# The linker used to build libraries.
-LD="/usr/bin/ld -m elf_x86_64"
-
-# Commands used to build an old-style archive.
-old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$oldlib"
-
-# A language specific compiler.
-CC="gcc"
-
-# Is the compiler the GNU compiler?
-with_gcc=yes
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-# Compiler flag to turn off builtin functions.
-no_builtin_flag=" -fno-builtin"
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-# How to pass a linker flag through the compiler.
-wl="-Wl,"
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-# Additional compiler flags for building library objects.
-pic_flag=" -fPIC -DPIC"
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-# Compiler flag to prevent dynamic linking.
-link_static_flag="-static"
-
-# Does compiler simultaneously support -c and -o options?
-compiler_c_o="yes"
-
-# Whether or not to add -lc for building shared libraries.
-build_libtool_need_lc=no
-
-# Whether or not to disallow shared libs when runtime libs are static.
-allow_libtool_libs_with_static_runtimes=no
-
-# Compiler flag to allow reflexive dlopens.
-export_dynamic_flag_spec="\${wl}--export-dynamic"
-
-# Compiler flag to generate shared objects directly from archives.
-whole_archive_flag_spec="\${wl}--whole-archive\$convenience \${wl}--no-whole-archive"
-
-# Whether the compiler copes with passing no objects directly.
-compiler_needs_object="no"
-
-# Create an old-style archive from a shared archive.
-old_archive_from_new_cmds=""
-
-# Create a temporary old-style archive to link instead of a shared archive.
-old_archive_from_expsyms_cmds=""
-
-# Commands used to build a shared archive.
-archive_cmds="\$CC -shared \$libobjs \$deplibs \$compiler_flags \${wl}-soname \$wl\$soname -o \$lib"
-archive_expsym_cmds="echo \\\"{ global:\\\" > \$output_objdir/\$libname.ver~
- cat \$export_symbols | sed -e \\\"s/\\\\(.*\\\\)/\\\\1;/\\\" >> \$output_objdir/\$libname.ver~
- echo \\\"local: *; };\\\" >> \$output_objdir/\$libname.ver~
- \$CC -shared \$libobjs \$deplibs \$compiler_flags \${wl}-soname \$wl\$soname \${wl}-version-script \${wl}\$output_objdir/\$libname.ver -o \$lib"
-
-# Commands used to build a loadable module if different from building
-# a shared archive.
-module_cmds=""
-module_expsym_cmds=""
-
-# Whether we are building with GNU ld or not.
-with_gnu_ld="yes"
-
-# Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag=""
-
-# Flag that enforces no undefined symbols.
-no_undefined_flag=""
-
-# Flag to hardcode $libdir into a binary during linking.
-# This must work even if $libdir does not exist
-hardcode_libdir_flag_spec="\${wl}-rpath \${wl}\$libdir"
-
-# If ld is used when linking, flag to hardcode $libdir into a binary
-# during linking. This must work even if $libdir does not exist.
-hardcode_libdir_flag_spec_ld=""
-
-# Whether we need a single "-rpath" flag with a separated argument.
-hardcode_libdir_separator=""
-
-# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
-# DIR into the resulting binary.
-hardcode_direct=no
-
-# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
-# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting ${shlibpath_var} if the
-# library is relocated.
-hardcode_direct_absolute=no
-
-# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-# into the resulting binary.
-hardcode_minus_L=no
-
-# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-# into the resulting binary.
-hardcode_shlibpath_var=unsupported
-
-# Set to "yes" if building a shared library automatically hardcodes DIR
-# into the library and all subsequent libraries and executables linked
-# against it.
-hardcode_automatic=no
-
-# Set to yes if linker adds runtime paths of dependent libraries
-# to runtime path list.
-inherit_rpath=no
-
-# Whether libtool must link a program against all its dependency libraries.
-link_all_deplibs=no
-
-# Fix the shell variable $srcfile for the compiler.
-fix_srcfile_path=""
-
-# Set to "yes" if exported symbols are required.
-always_export_symbols=no
-
-# The commands to list exported symbols.
-export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"
-
-# Symbols that should not be listed in the preloaded symbols.
-exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"
-
-# Symbols that must always be exported.
-include_expsyms=""
-
-# Commands necessary for linking programs (against libraries) with templates.
-prelink_cmds=""
-
-# Specify filename containing input files.
-file_list_spec=""
-
-# How to hardcode a shared library path into an executable.
-hardcode_action=immediate
-
-# The directories searched by this compiler when creating a shared library.
-compiler_lib_search_dirs=""
-
-# Dependencies to place before and after the objects being linked to
-# create a shared library.
-predep_objects=""
-postdep_objects=""
-predeps=""
-postdeps=""
-
-# The library search path used internally by the compiler when linking
-# a shared library.
-compiler_lib_search_path=""
-
-# ### END LIBTOOL CONFIG
-
-# Generated from ltmain.m4sh.
-
-# ltmain.sh (GNU libtool) 2.2.6b
-# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007 2008 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html,
-# or obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-# Usage: $progname [OPTION]... [MODE-ARG]...
-#
-# Provide generalized library-building support services.
-#
-# --config show all configuration variables
-# --debug enable verbose shell tracing
-# -n, --dry-run display commands without modifying any files
-# --features display basic configuration information and exit
-# --mode=MODE use operation mode MODE
-# --preserve-dup-deps don't remove duplicate dependency libraries
-# --quiet, --silent don't print informational messages
-# --tag=TAG use configuration variables from tag TAG
-# -v, --verbose print informational messages (default)
-# --version print version information
-# -h, --help print short or long help message
-#
-# MODE must be one of the following:
-#
-# clean remove files from the build directory
-# compile compile a source file into a libtool object
-# execute automatically set library path, then run a program
-# finish complete the installation of libtool libraries
-# install install libraries or executables
-# link create a library or an executable
-# uninstall remove libraries from an installed directory
-#
-# MODE-ARGS vary depending on the MODE.
-# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
-#
-# When reporting a bug, please describe a test case to reproduce it and
-# include the following information:
-#
-# host-triplet: $host
-# shell: $SHELL
-# compiler: $LTCC
-# compiler flags: $LTCFLAGS
-# linker: $LD (gnu? $with_gnu_ld)
-# $progname: (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-# automake: $automake_version
-# autoconf: $autoconf_version
-#
-# Report bugs to <bug-libtool@gnu.org>.
-
-PROGRAM=ltmain.sh
-PACKAGE=libtool
-VERSION="2.2.6b Debian-2.2.6b-2ubuntu1"
-TIMESTAMP=""
-package_revision=1.3017
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# NLS nuisances: We save the old values to restore during execute mode.
-# Only set LANG and LC_ALL to C if already set.
-# These must not be set unconditionally because not all systems understand
-# e.g. LANG=C (notably SCO).
-lt_user_locale=
-lt_safe_locale=
-for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
- eval "if test \"\${$lt_var+set}\" = set; then
- save_$lt_var=\$$lt_var
- $lt_var=C
- export $lt_var
- lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
- lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
- fi"
-done
-
-$lt_unset CDPATH
-
-
-
-
-
-: ${CP="cp -f"}
-: ${ECHO="echo"}
-: ${EGREP="/bin/grep -E"}
-: ${FGREP="/bin/grep -F"}
-: ${GREP="/bin/grep"}
-: ${LN_S="ln -s"}
-: ${MAKE="make"}
-: ${MKDIR="mkdir"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-: ${SED="/bin/sed"}
-: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-: ${Xsed="$SED -e 1s/^X//"}
-
-# Global variables:
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-
-exit_status=$EXIT_SUCCESS
-
-# Make sure IFS has a sensible default
-lt_nl='
-'
-IFS=" $lt_nl"
-
-dirname="s,/[^/]*$,,"
-basename="s,^.*/,,"
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
- func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-# Generated shell functions inserted here.
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result="${1##*/}"
-}
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
- func_basename_result="${1##*/}"
-}
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-func_stripname ()
-{
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary parameter first.
- func_stripname_result=${3}
- func_stripname_result=${func_stripname_result#"${1}"}
- func_stripname_result=${func_stripname_result%"${2}"}
-}
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=${1%%=*}
- func_opt_split_arg=${1#*=}
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- case ${1} in
- *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
- *) func_lo2o_result=${1} ;;
- esac
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=${1%.*}.lo
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=$(( $* ))
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=${#1}
-}
-
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$1+=\$2"
-}
-# Generated shell functions inserted here.
-
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath="$0"
-
-# The name of this program:
-# In the unlikely event $progname began with a '-', it would play havoc with
-# func_echo (imagine progname=-n), so we prepend ./ in that case:
-func_dirname_and_basename "$progpath"
-progname=$func_basename_result
-case $progname in
- -*) progname=./$progname ;;
-esac
-
-# Make sure we have an absolute path for reexecution:
-case $progpath in
- [\\/]*|[A-Za-z]:\\*) ;;
- *[\\/]*)
- progdir=$func_dirname_result
- progdir=`cd "$progdir" && pwd`
- progpath="$progdir/$progname"
- ;;
- *)
- save_IFS="$IFS"
- IFS=:
- for progdir in $PATH; do
- IFS="$save_IFS"
- test -x "$progdir/$progname" && break
- done
- IFS="$save_IFS"
- test -n "$progdir" || progdir=`pwd`
- progpath="$progdir/$progname"
- ;;
-esac
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed="${SED}"' -e 1s/^X//'
-sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Re-`\' parameter expansions in output of double_quote_subst that were
-# `\'-ed in input to the same. If an odd number of `\' preceded a '$'
-# in input to double_quote_subst, that '$' was protected from expansion.
-# Since each input `\' is now two `\'s, look for any number of runs of
-# four `\'s followed by two `\'s and then a '$'. `\' that '$'.
-bs='\\'
-bs2='\\\\'
-bs4='\\\\\\\\'
-dollar='\$'
-sed_double_backslash="\
- s/$bs4/&\\
-/g
- s/^$bs2$dollar/$bs&/
- s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
- s/\n//g"
-
-# Standard options:
-opt_dry_run=false
-opt_help=false
-opt_quiet=false
-opt_verbose=false
-opt_warning=:
-
-# func_echo arg...
-# Echo program name prefixed message, along with the current mode
-# name if it has been set yet.
-func_echo ()
-{
- $ECHO "$progname${mode+: }$mode: $*"
-}
-
-# func_verbose arg...
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
- $opt_verbose && func_echo ${1+"$@"}
-
- # A bug in bash halts the script if the last line of a function
- # fails when set -e is in force, so we need another command to
- # work around that:
- :
-}
-
-# func_error arg...
-# Echo program name prefixed message to standard error.
-func_error ()
-{
- $ECHO "$progname${mode+: }$mode: "${1+"$@"} 1>&2
-}
-
-# func_warning arg...
-# Echo program name prefixed warning message to standard error.
-func_warning ()
-{
- $opt_warning && $ECHO "$progname${mode+: }$mode: warning: "${1+"$@"} 1>&2
-
- # bash bug again:
- :
-}
-
-# func_fatal_error arg...
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
- func_error ${1+"$@"}
- exit $EXIT_FAILURE
-}
-
-# func_fatal_help arg...
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
- func_error ${1+"$@"}
- func_fatal_error "$help"
-}
-help="Try \`$progname --help' for more information." ## default
-
-
-# func_grep expression filename
-# Check whether EXPRESSION matches any line of FILENAME, without output.
-func_grep ()
-{
- $GREP "$1" "$2" >/dev/null 2>&1
-}
-
-
-# func_mkdir_p directory-path
-# Make sure the entire path to DIRECTORY-PATH is available.
-func_mkdir_p ()
-{
- my_directory_path="$1"
- my_dir_list=
-
- if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
-
- # Protect directory names starting with `-'
- case $my_directory_path in
- -*) my_directory_path="./$my_directory_path" ;;
- esac
-
- # While some portion of DIR does not yet exist...
- while test ! -d "$my_directory_path"; do
- # ...make a list in topmost first order. Use a colon delimited
- # list incase some portion of path contains whitespace.
- my_dir_list="$my_directory_path:$my_dir_list"
-
- # If the last portion added has no slash in it, the list is done
- case $my_directory_path in */*) ;; *) break ;; esac
-
- # ...otherwise throw away the child directory and loop
- my_directory_path=`$ECHO "X$my_directory_path" | $Xsed -e "$dirname"`
- done
- my_dir_list=`$ECHO "X$my_dir_list" | $Xsed -e 's,:*$,,'`
-
- save_mkdir_p_IFS="$IFS"; IFS=':'
- for my_dir in $my_dir_list; do
- IFS="$save_mkdir_p_IFS"
- # mkdir can fail with a `File exist' error if two processes
- # try to create one of the directories concurrently. Don't
- # stop in that case!
- $MKDIR "$my_dir" 2>/dev/null || :
- done
- IFS="$save_mkdir_p_IFS"
-
- # Bail out if we (or some other process) failed to create a directory.
- test -d "$my_directory_path" || \
- func_fatal_error "Failed to create \`$1'"
- fi
-}
-
-
-# func_mktempdir [string]
-# Make a temporary directory that won't clash with other running
-# libtool processes, and avoids race conditions if possible. If
-# given, STRING is the basename for that directory.
-func_mktempdir ()
-{
- my_template="${TMPDIR-/tmp}/${1-$progname}"
-
- if test "$opt_dry_run" = ":"; then
- # Return a directory name, but don't create it in dry-run mode
- my_tmpdir="${my_template}-$$"
- else
-
- # If mktemp works, use that first and foremost
- my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
-
- if test ! -d "$my_tmpdir"; then
- # Failing that, at least try and use $RANDOM to avoid a race
- my_tmpdir="${my_template}-${RANDOM-0}$$"
-
- save_mktempdir_umask=`umask`
- umask 0077
- $MKDIR "$my_tmpdir"
- umask $save_mktempdir_umask
- fi
-
- # If we're not in dry-run mode, bomb out on failure
- test -d "$my_tmpdir" || \
- func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
- fi
-
- $ECHO "X$my_tmpdir" | $Xsed
-}
-
-
-# func_quote_for_eval arg
-# Aesthetically quote ARG to be evaled later.
-# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
-# is double-quoted, suitable for a subsequent eval, whereas
-# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
-# which are still active within double quotes backslashified.
-func_quote_for_eval ()
-{
- case $1 in
- *[\\\`\"\$]*)
- func_quote_for_eval_unquoted_result=`$ECHO "X$1" | $Xsed -e "$sed_quote_subst"` ;;
- *)
- func_quote_for_eval_unquoted_result="$1" ;;
- esac
-
- case $func_quote_for_eval_unquoted_result in
- # Double-quote args containing shell metacharacters to delay
- # word splitting, command substitution and and variable
- # expansion for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
- ;;
- *)
- func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
- esac
-}
-
-
-# func_quote_for_expand arg
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
- case $1 in
- *[\\\`\"]*)
- my_arg=`$ECHO "X$1" | $Xsed \
- -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
- *)
- my_arg="$1" ;;
- esac
-
- case $my_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting and command substitution for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- my_arg="\"$my_arg\""
- ;;
- esac
-
- func_quote_for_expand_result="$my_arg"
-}
-
-
-# func_show_eval cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
-
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- if ${opt_dry_run-false}; then :; else
- eval "$my_cmd"
- my_status=$?
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
-
-
-# func_show_eval_locale cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it. Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
-
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- if ${opt_dry_run-false}; then :; else
- eval "$lt_user_locale
- $my_cmd"
- my_status=$?
- eval "$lt_safe_locale"
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
-
-
-
-
-
-# func_version
-# Echo version message to standard output and exit.
-func_version ()
-{
- $SED -n '/^# '$PROGRAM' (GNU /,/# warranty; / {
- s/^# //
- s/^# *$//
- s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
- p
- }' < "$progpath"
- exit $?
-}
-
-# func_usage
-# Echo short help message to standard output and exit.
-func_usage ()
-{
- $SED -n '/^# Usage:/,/# -h/ {
- s/^# //
- s/^# *$//
- s/\$progname/'$progname'/
- p
- }' < "$progpath"
- $ECHO
- $ECHO "run \`$progname --help | more' for full usage"
- exit $?
-}
-
-# func_help
-# Echo long help message to standard output and exit.
-func_help ()
-{
- $SED -n '/^# Usage:/,/# Report bugs to/ {
- s/^# //
- s/^# *$//
- s*\$progname*'$progname'*
- s*\$host*'"$host"'*
- s*\$SHELL*'"$SHELL"'*
- s*\$LTCC*'"$LTCC"'*
- s*\$LTCFLAGS*'"$LTCFLAGS"'*
- s*\$LD*'"$LD"'*
- s/\$with_gnu_ld/'"$with_gnu_ld"'/
- s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
- s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
- p
- }' < "$progpath"
- exit $?
-}
-
-# func_missing_arg argname
-# Echo program name prefixed message to standard error and set global
-# exit_cmd.
-func_missing_arg ()
-{
- func_error "missing argument for $1"
- exit_cmd=exit
-}
-
-exit_cmd=:
-
-
-
-
-
-# Check that we have a working $ECHO.
-if test "X$1" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
-elif test "X$1" = X--fallback-echo; then
- # Avoid inline document here, it may be left over
- :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t'; then
- # Yippee, $ECHO works!
- :
-else
- # Restart under the correct shell, and then maybe $ECHO will work.
- exec $SHELL "$progpath" --no-reexec ${1+"$@"}
-fi
-
-if test "X$1" = X--fallback-echo; then
- # used as fallback echo
- shift
- cat <<EOF
-$*
-EOF
- exit $EXIT_SUCCESS
-fi
-
-magic="%%%MAGIC variable%%%"
-magic_exe="%%%MAGIC EXE variable%%%"
-
-# Global variables.
-# $mode is unset
-nonopt=
-execute_dlfiles=
-preserve_args=
-lo2o="s/\\.lo\$/.${objext}/"
-o2lo="s/\\.${objext}\$/.lo/"
-extracted_archives=
-extracted_serial=0
-
-opt_dry_run=false
-opt_duplicate_deps=false
-opt_silent=false
-opt_debug=:
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end. This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-# func_fatal_configuration arg...
-# Echo program name prefixed message to standard error, followed by
-# a configuration failure hint, and exit.
-func_fatal_configuration ()
-{
- func_error ${1+"$@"}
- func_error "See the $PACKAGE documentation for more information."
- func_fatal_error "Fatal configuration error."
-}
-
-
-# func_config
-# Display the configuration for all the tags in this script.
-func_config ()
-{
- re_begincf='^# ### BEGIN LIBTOOL'
- re_endcf='^# ### END LIBTOOL'
-
- # Default configuration.
- $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
-
- # Now print the configurations for the tags.
- for tagname in $taglist; do
- $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
- done
-
- exit $?
-}
-
-# func_features
-# Display the features supported by this script.
-func_features ()
-{
- $ECHO "host: $host"
- if test "$build_libtool_libs" = yes; then
- $ECHO "enable shared libraries"
- else
- $ECHO "disable shared libraries"
- fi
- if test "$build_old_libs" = yes; then
- $ECHO "enable static libraries"
- else
- $ECHO "disable static libraries"
- fi
-
- exit $?
-}
-
-# func_enable_tag tagname
-# Verify that TAGNAME is valid, and either flag an error and exit, or
-# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
-# variable here.
-func_enable_tag ()
-{
- # Global variable:
- tagname="$1"
-
- re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
- re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
- sed_extractcf="/$re_begincf/,/$re_endcf/p"
-
- # Validate tagname.
- case $tagname in
- *[!-_A-Za-z0-9,/]*)
- func_fatal_error "invalid tag name: $tagname"
- ;;
- esac
-
- # Don't test for the "default" C tag, as we know it's
- # there but not specially marked.
- case $tagname in
- CC) ;;
- *)
- if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
- taglist="$taglist $tagname"
-
- # Evaluate the configuration. Be careful to quote the path
- # and the sed script, to avoid splitting on whitespace, but
- # also don't use non-portable quotes within backquotes within
- # quotes we have to do it in 2 steps:
- extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
- eval "$extractedcf"
- else
- func_error "ignoring unknown tag $tagname"
- fi
- ;;
- esac
-}
-
-# Parse options once, thoroughly. This comes as soon as possible in
-# the script to make things like `libtool --version' happen quickly.
-{
-
- # Shorthand for --mode=foo, only valid as the first argument
- case $1 in
- clean|clea|cle|cl)
- shift; set dummy --mode clean ${1+"$@"}; shift
- ;;
- compile|compil|compi|comp|com|co|c)
- shift; set dummy --mode compile ${1+"$@"}; shift
- ;;
- execute|execut|execu|exec|exe|ex|e)
- shift; set dummy --mode execute ${1+"$@"}; shift
- ;;
- finish|finis|fini|fin|fi|f)
- shift; set dummy --mode finish ${1+"$@"}; shift
- ;;
- install|instal|insta|inst|ins|in|i)
- shift; set dummy --mode install ${1+"$@"}; shift
- ;;
- link|lin|li|l)
- shift; set dummy --mode link ${1+"$@"}; shift
- ;;
- uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
- shift; set dummy --mode uninstall ${1+"$@"}; shift
- ;;
- esac
-
- # Parse non-mode specific arguments:
- while test "$#" -gt 0; do
- opt="$1"
- shift
-
- case $opt in
- --config) func_config ;;
-
- --debug) preserve_args="$preserve_args $opt"
- func_echo "enabling shell trace mode"
- opt_debug='set -x'
- $opt_debug
- ;;
-
- -dlopen) test "$#" -eq 0 && func_missing_arg "$opt" && break
- execute_dlfiles="$execute_dlfiles $1"
- shift
- ;;
-
- --dry-run | -n) opt_dry_run=: ;;
- --features) func_features ;;
- --finish) mode="finish" ;;
-
- --mode) test "$#" -eq 0 && func_missing_arg "$opt" && break
- case $1 in
- # Valid mode arguments:
- clean) ;;
- compile) ;;
- execute) ;;
- finish) ;;
- install) ;;
- link) ;;
- relink) ;;
- uninstall) ;;
-
- # Catch anything else as an error
- *) func_error "invalid argument for $opt"
- exit_cmd=exit
- break
- ;;
- esac
-
- mode="$1"
- shift
- ;;
-
- --preserve-dup-deps)
- opt_duplicate_deps=: ;;
-
- --quiet|--silent) preserve_args="$preserve_args $opt"
- opt_silent=:
- ;;
-
- --verbose| -v) preserve_args="$preserve_args $opt"
- opt_silent=false
- ;;
-
- --tag) test "$#" -eq 0 && func_missing_arg "$opt" && break
- preserve_args="$preserve_args $opt $1"
- func_enable_tag "$1" # tagname is set here
- shift
- ;;
-
- # Separate optargs to long options:
- -dlopen=*|--mode=*|--tag=*)
- func_opt_split "$opt"
- set dummy "$func_opt_split_opt" "$func_opt_split_arg" ${1+"$@"}
- shift
- ;;
-
- -\?|-h) func_usage ;;
- --help) opt_help=: ;;
- --version) func_version ;;
-
- -*) func_fatal_help "unrecognized option \`$opt'" ;;
-
- *) nonopt="$opt"
- break
- ;;
- esac
- done
-
-
- case $host in
- *cygwin* | *mingw* | *pw32* | *cegcc*)
- # don't eliminate duplications in $postdeps and $predeps
- opt_duplicate_compiler_generated_deps=:
- ;;
- *)
- opt_duplicate_compiler_generated_deps=$opt_duplicate_deps
- ;;
- esac
-
- # Having warned about all mis-specified options, bail out if
- # anything was wrong.
- $exit_cmd $EXIT_FAILURE
-}
-
-# func_check_version_match
-# Ensure that we are using m4 macros, and libtool script from the same
-# release of libtool.
-func_check_version_match ()
-{
- if test "$package_revision" != "$macro_revision"; then
- if test "$VERSION" != "$macro_version"; then
- if test -z "$macro_version"; then
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from an older release.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- fi
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
-$progname: but the definition of this LT_INIT comes from revision $macro_revision.
-$progname: You should recreate aclocal.m4 with macros from revision $package_revision
-$progname: of $PACKAGE $VERSION and run autoconf again.
-_LT_EOF
- fi
-
- exit $EXIT_MISMATCH
- fi
-}
-
-
-## ----------- ##
-## Main. ##
-## ----------- ##
-
-$opt_help || {
- # Sanity checks first:
- func_check_version_match
-
- if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
- func_fatal_configuration "not configured to build any kind of library"
- fi
-
- test -z "$mode" && func_fatal_error "error: you must specify a MODE."
-
-
- # Darwin sucks
- eval std_shrext=\"$shrext_cmds\"
-
-
- # Only execute mode is allowed to have -dlopen flags.
- if test -n "$execute_dlfiles" && test "$mode" != execute; then
- func_error "unrecognized option \`-dlopen'"
- $ECHO "$help" 1>&2
- exit $EXIT_FAILURE
- fi
-
- # Change the help message to a mode-specific one.
- generic_help="$help"
- help="Try \`$progname --help --mode=$mode' for more information."
-}
-
-
-# func_lalib_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_lalib_p ()
-{
- test -f "$1" &&
- $SED -e 4q "$1" 2>/dev/null \
- | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
-# func_lalib_unsafe_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function implements the same check as func_lalib_p without
-# resorting to external programs. To this end, it redirects stdin and
-# closes it afterwards, without saving the original file descriptor.
-# As a safety measure, use it only where a negative result would be
-# fatal anyway. Works if `file' does not exist.
-func_lalib_unsafe_p ()
-{
- lalib_p=no
- if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
- for lalib_p_l in 1 2 3 4
- do
- read lalib_p_line
- case "$lalib_p_line" in
- \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
- esac
- done
- exec 0<&5 5<&-
- fi
- test "$lalib_p" = yes
-}
-
-# func_ltwrapper_script_p file
-# True iff FILE is a libtool wrapper script
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_script_p ()
-{
- func_lalib_p "$1"
-}
-
-# func_ltwrapper_executable_p file
-# True iff FILE is a libtool wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_executable_p ()
-{
- func_ltwrapper_exec_suffix=
- case $1 in
- *.exe) ;;
- *) func_ltwrapper_exec_suffix=.exe ;;
- esac
- $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
-}
-
-# func_ltwrapper_scriptname file
-# Assumes file is an ltwrapper_executable
-# uses $file to determine the appropriate filename for a
-# temporary ltwrapper_script.
-func_ltwrapper_scriptname ()
-{
- func_ltwrapper_scriptname_result=""
- if func_ltwrapper_executable_p "$1"; then
- func_dirname_and_basename "$1" "" "."
- func_stripname '' '.exe' "$func_basename_result"
- func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
- fi
-}
-
-# func_ltwrapper_p file
-# True iff FILE is a libtool wrapper script or wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_p ()
-{
- func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
-}
-
-
-# func_execute_cmds commands fail_cmd
-# Execute tilde-delimited COMMANDS.
-# If FAIL_CMD is given, eval that upon failure.
-# FAIL_CMD may read-access the current command in variable CMD!
-func_execute_cmds ()
-{
- $opt_debug
- save_ifs=$IFS; IFS='~'
- for cmd in $1; do
- IFS=$save_ifs
- eval cmd=\"$cmd\"
- func_show_eval "$cmd" "${2-:}"
- done
- IFS=$save_ifs
-}
-
-
-# func_source file
-# Source FILE, adding directory component if necessary.
-# Note that it is not necessary on cygwin/mingw to append a dot to
-# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
-# behavior happens only for exec(3), not for open(2)! Also, sourcing
-# `FILE.' does not work on cygwin managed mounts.
-func_source ()
-{
- $opt_debug
- case $1 in
- */* | *\\*) . "$1" ;;
- *) . "./$1" ;;
- esac
-}
-
-
-# func_infer_tag arg
-# Infer tagged configuration to use if any are available and
-# if one wasn't chosen via the "--tag" command line option.
-# Only attempt this if the compiler in the base compile
-# command doesn't match the default compiler.
-# arg is usually of the form 'gcc ...'
-func_infer_tag ()
-{
- $opt_debug
- if test -n "$available_tags" && test -z "$tagname"; then
- CC_quoted=
- for arg in $CC; do
- func_quote_for_eval "$arg"
- CC_quoted="$CC_quoted $func_quote_for_eval_result"
- done
- case $@ in
- # Blanks in the command may have been stripped by the calling shell,
- # but not from the CC environment variable when configure was run.
- " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*) ;;
- # Blanks at the start of $base_compile will cause this to fail
- # if we don't check for them as well.
- *)
- for z in $available_tags; do
- if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
- # Evaluate the configuration.
- eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
- CC_quoted=
- for arg in $CC; do
- # Double-quote args containing other shell metacharacters.
- func_quote_for_eval "$arg"
- CC_quoted="$CC_quoted $func_quote_for_eval_result"
- done
- case "$@ " in
- " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*)
- # The compiler in the base compile command matches
- # the one in the tagged configuration.
- # Assume this is the tagged configuration we want.
- tagname=$z
- break
- ;;
- esac
- fi
- done
- # If $tagname still isn't set, then no tagged configuration
- # was found and let the user know that the "--tag" command
- # line option must be used.
- if test -z "$tagname"; then
- func_echo "unable to infer tagged configuration"
- func_fatal_error "specify a tag with \`--tag'"
-# else
-# func_verbose "using $tagname tagged configuration"
- fi
- ;;
- esac
- fi
-}
-
-
-
-# func_write_libtool_object output_name pic_name nonpic_name
-# Create a libtool object file (analogous to a ".la" file),
-# but don't create it if we're doing a dry run.
-func_write_libtool_object ()
-{
- write_libobj=${1}
- if test "$build_libtool_libs" = yes; then
- write_lobj=\'${2}\'
- else
- write_lobj=none
- fi
-
- if test "$build_old_libs" = yes; then
- write_oldobj=\'${3}\'
- else
- write_oldobj=none
- fi
-
- $opt_dry_run || {
- cat >${write_libobj}T <<EOF
-# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object=$write_lobj
-
-# Name of the non-PIC object
-non_pic_object=$write_oldobj
-
-EOF
- $MV "${write_libobj}T" "${write_libobj}"
- }
-}
-
-# func_mode_compile arg...
-func_mode_compile ()
-{
- $opt_debug
- # Get the compilation command and the source file.
- base_compile=
- srcfile="$nonopt" # always keep a non-empty value in "srcfile"
- suppress_opt=yes
- suppress_output=
- arg_mode=normal
- libobj=
- later=
- pie_flag=
-
- for arg
- do
- case $arg_mode in
- arg )
- # do not "continue". Instead, add this to base_compile
- lastarg="$arg"
- arg_mode=normal
- ;;
-
- target )
- libobj="$arg"
- arg_mode=normal
- continue
- ;;
-
- normal )
- # Accept any command-line options.
- case $arg in
- -o)
- test -n "$libobj" && \
- func_fatal_error "you cannot specify \`-o' more than once"
- arg_mode=target
- continue
- ;;
-
- -pie | -fpie | -fPIE)
- pie_flag="$pie_flag $arg"
- continue
- ;;
-
- -shared | -static | -prefer-pic | -prefer-non-pic)
- later="$later $arg"
- continue
- ;;
-
- -no-suppress)
- suppress_opt=no
- continue
- ;;
-
- -Xcompiler)
- arg_mode=arg # the next one goes into the "base_compile" arg list
- continue # The current "srcfile" will either be retained or
- ;; # replaced later. I would guess that would be a bug.
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- lastarg=
- save_ifs="$IFS"; IFS=','
- for arg in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$arg"
- lastarg="$lastarg $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$lastarg"
- lastarg=$func_stripname_result
-
- # Add the arguments to base_compile.
- base_compile="$base_compile $lastarg"
- continue
- ;;
-
- *)
- # Accept the current argument as the source file.
- # The previous "srcfile" becomes the current argument.
- #
- lastarg="$srcfile"
- srcfile="$arg"
- ;;
- esac # case $arg
- ;;
- esac # case $arg_mode
-
- # Aesthetically quote the previous argument.
- func_quote_for_eval "$lastarg"
- base_compile="$base_compile $func_quote_for_eval_result"
- done # for arg
-
- case $arg_mode in
- arg)
- func_fatal_error "you must specify an argument for -Xcompile"
- ;;
- target)
- func_fatal_error "you must specify a target with \`-o'"
- ;;
- *)
- # Get the name of the library object.
- test -z "$libobj" && {
- func_basename "$srcfile"
- libobj="$func_basename_result"
- }
- ;;
- esac
-
- # Recognize several different file suffixes.
- # If the user specifies -o file.o, it is replaced with file.lo
- case $libobj in
- *.[cCFSifmso] | \
- *.ada | *.adb | *.ads | *.asm | \
- *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
- *.[fF][09]? | *.for | *.java | *.obj | *.sx)
- func_xform "$libobj"
- libobj=$func_xform_result
- ;;
- esac
-
- case $libobj in
- *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
- *)
- func_fatal_error "cannot determine name of library object from \`$libobj'"
- ;;
- esac
-
- func_infer_tag $base_compile
-
- for arg in $later; do
- case $arg in
- -shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
- build_old_libs=no
- continue
- ;;
-
- -static)
- build_libtool_libs=no
- build_old_libs=yes
- continue
- ;;
-
- -prefer-pic)
- pic_mode=yes
- continue
- ;;
-
- -prefer-non-pic)
- pic_mode=no
- continue
- ;;
- esac
- done
-
- func_quote_for_eval "$libobj"
- test "X$libobj" != "X$func_quote_for_eval_result" \
- && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
- && func_warning "libobj name \`$libobj' may not contain shell special characters."
- func_dirname_and_basename "$obj" "/" ""
- objname="$func_basename_result"
- xdir="$func_dirname_result"
- lobj=${xdir}$objdir/$objname
-
- test -z "$base_compile" && \
- func_fatal_help "you must specify a compilation command"
-
- # Delete any leftover library objects.
- if test "$build_old_libs" = yes; then
- removelist="$obj $lobj $libobj ${libobj}T"
- else
- removelist="$lobj $libobj ${libobj}T"
- fi
-
- # On Cygwin there's no "real" PIC flag so we must build both object types
- case $host_os in
- cygwin* | mingw* | pw32* | os2* | cegcc*)
- pic_mode=default
- ;;
- esac
- if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
- # non-PIC code in shared libraries is not supported
- pic_mode=default
- fi
-
- # Calculate the filename of the output object if compiler does
- # not support -o with -c
- if test "$compiler_c_o" = no; then
- output_obj=`$ECHO "X$srcfile" | $Xsed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.${objext}
- lockfile="$output_obj.lock"
- else
- output_obj=
- need_locks=no
- lockfile=
- fi
-
- # Lock this critical section if it is needed
- # We use this script file to make the link, it avoids creating a new file
- if test "$need_locks" = yes; then
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- elif test "$need_locks" = warn; then
- if test -f "$lockfile"; then
- $ECHO "\
-*** ERROR, $lockfile exists and contains:
-`cat $lockfile 2>/dev/null`
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
- removelist="$removelist $output_obj"
- $ECHO "$srcfile" > "$lockfile"
- fi
-
- $opt_dry_run || $RM $removelist
- removelist="$removelist $lockfile"
- trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
-
- if test -n "$fix_srcfile_path"; then
- eval srcfile=\"$fix_srcfile_path\"
- fi
- func_quote_for_eval "$srcfile"
- qsrcfile=$func_quote_for_eval_result
-
- # Only build a PIC object if we are building libtool libraries.
- if test "$build_libtool_libs" = yes; then
- # Without this assignment, base_compile gets emptied.
- fbsd_hideous_sh_bug=$base_compile
-
- if test "$pic_mode" != no; then
- command="$base_compile $qsrcfile $pic_flag"
- else
- # Don't build PIC code
- command="$base_compile $qsrcfile"
- fi
-
- func_mkdir_p "$xdir$objdir"
-
- if test -z "$output_obj"; then
- # Place PIC objects in $objdir
- command="$command -o $lobj"
- fi
-
- func_show_eval_locale "$command" \
- 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
-
- if test "$need_locks" = warn &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed, then go on to compile the next one
- if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
- func_show_eval '$MV "$output_obj" "$lobj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
-
- # Allow error messages only from the first compilation.
- if test "$suppress_opt" = yes; then
- suppress_output=' >/dev/null 2>&1'
- fi
- fi
-
- # Only build a position-dependent object if we build old libraries.
- if test "$build_old_libs" = yes; then
- if test "$pic_mode" != yes; then
- # Don't build PIC code
- command="$base_compile $qsrcfile$pie_flag"
- else
- command="$base_compile $qsrcfile $pic_flag"
- fi
- if test "$compiler_c_o" = yes; then
- command="$command -o $obj"
- fi
-
- # Suppress compiler output if we already did a PIC compilation.
- command="$command$suppress_output"
- func_show_eval_locale "$command" \
- '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
-
- if test "$need_locks" = warn &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed
- if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
- func_show_eval '$MV "$output_obj" "$obj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
- fi
-
- $opt_dry_run || {
- func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
-
- # Unlock the critical section if it was locked
- if test "$need_locks" != no; then
- removelist=$lockfile
- $RM "$lockfile"
- fi
- }
-
- exit $EXIT_SUCCESS
-}
-
-$opt_help || {
-test "$mode" = compile && func_mode_compile ${1+"$@"}
-}
-
-func_mode_help ()
-{
- # We need to display help for each of the modes.
- case $mode in
- "")
- # Generic help is extracted from the usage comments
- # at the start of this file.
- func_help
- ;;
-
- clean)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
-
-Remove files from the build directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, object or program, all the files associated
-with it are deleted. Otherwise, only FILE itself is deleted using RM."
- ;;
-
- compile)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
-
-Compile a source file into a libtool library object.
-
-This mode accepts the following additional options:
-
- -o OUTPUT-FILE set the output file name to OUTPUT-FILE
- -no-suppress do not suppress compiler output for multiple passes
- -prefer-pic try to building PIC objects only
- -prefer-non-pic try to building non-PIC objects only
- -shared do not build a \`.o' file suitable for static linking
- -static only build a \`.o' file suitable for static linking
-
-COMPILE-COMMAND is a command to be used in creating a \`standard' object file
-from the given SOURCEFILE.
-
-The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix \`.c' with the
-library object suffix, \`.lo'."
- ;;
-
- execute)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
-
-Automatically set library path, then run a program.
-
-This mode accepts the following additional options:
-
- -dlopen FILE add the directory containing FILE to the library path
-
-This mode sets the library path environment variable according to \`-dlopen'
-flags.
-
-If any of the ARGS are libtool executable wrappers, then they are translated
-into their corresponding uninstalled binary, and any of their required library
-directories are added to the library path.
-
-Then, COMMAND is executed, with ARGS as arguments."
- ;;
-
- finish)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
-
-Complete the installation of libtool libraries.
-
-Each LIBDIR is a directory that contains libtool libraries.
-
-The commands that this mode executes may require superuser privileges. Use
-the \`--dry-run' option if you just want to see what would be executed."
- ;;
-
- install)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
-
-Install executables or libraries.
-
-INSTALL-COMMAND is the installation command. The first component should be
-either the \`install' or \`cp' program.
-
-The following components of INSTALL-COMMAND are treated specially:
-
- -inst-prefix PREFIX-DIR Use PREFIX-DIR as a staging area for installation
-
-The rest of the components are interpreted as arguments to that command (only
-BSD-compatible install options are recognized)."
- ;;
-
- link)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
-
-Link object files or libraries together to form another library, or to
-create an executable program.
-
-LINK-COMMAND is a command using the C compiler that you would use to create
-a program from several object files.
-
-The following components of LINK-COMMAND are treated specially:
-
- -all-static do not do any dynamic linking at all
- -avoid-version do not add a version suffix if possible
- -dlopen FILE \`-dlpreopen' FILE if it cannot be dlopened at runtime
- -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
- -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
- -export-symbols SYMFILE
- try to export only the symbols listed in SYMFILE
- -export-symbols-regex REGEX
- try to export only the symbols matching REGEX
- -LLIBDIR search LIBDIR for required installed libraries
- -lNAME OUTPUT-FILE requires the installed library libNAME
- -module build a library that can dlopened
- -no-fast-install disable the fast-install mode
- -no-install link a not-installable executable
- -no-undefined declare that a library does not refer to external symbols
- -o OUTPUT-FILE create OUTPUT-FILE from the specified objects
- -objectlist FILE Use a list of object files found in FILE to specify objects
- -precious-files-regex REGEX
- don't remove output files matching REGEX
- -release RELEASE specify package release information
- -rpath LIBDIR the created library will eventually be installed in LIBDIR
- -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries
- -shared only do dynamic linking of libtool libraries
- -shrext SUFFIX override the standard shared library file extension
- -static do not do any dynamic linking of uninstalled libtool libraries
- -static-libtool-libs
- do not do any dynamic linking of libtool libraries
- -version-info CURRENT[:REVISION[:AGE]]
- specify library version info [each variable defaults to 0]
- -weak LIBNAME declare that the target provides the LIBNAME interface
-
-All other options (arguments beginning with \`-') are ignored.
-
-Every other argument is treated as a filename. Files ending in \`.la' are
-treated as uninstalled libtool libraries, other files are standard or library
-object files.
-
-If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
-only library objects (\`.lo' files) may be specified, and \`-rpath' is
-required, except when creating a convenience library.
-
-If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
-using \`ar' and \`ranlib', or on Windows using \`lib'.
-
-If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
-is created, otherwise an executable program is created."
- ;;
-
- uninstall)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
-
-Remove libraries from an installation directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, all the files associated with it are deleted.
-Otherwise, only FILE itself is deleted using RM."
- ;;
-
- *)
- func_fatal_help "invalid operation mode \`$mode'"
- ;;
- esac
-
- $ECHO
- $ECHO "Try \`$progname --help' for more information about other modes."
-
- exit $?
-}
-
- # Now that we've collected a possible --mode arg, show help if necessary
- $opt_help && func_mode_help
-
-
-# func_mode_execute arg...
-func_mode_execute ()
-{
- $opt_debug
- # The first argument is the command name.
- cmd="$nonopt"
- test -z "$cmd" && \
- func_fatal_help "you must specify a COMMAND"
-
- # Handle -dlopen flags immediately.
- for file in $execute_dlfiles; do
- test -f "$file" \
- || func_fatal_help "\`$file' is not a file"
-
- dir=
- case $file in
- *.la)
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$lib' is not a valid libtool archive"
-
- # Read the libtool library.
- dlname=
- library_names=
- func_source "$file"
-
- # Skip this library if it cannot be dlopened.
- if test -z "$dlname"; then
- # Warn if it was a shared library.
- test -n "$library_names" && \
- func_warning "\`$file' was not linked with \`-export-dynamic'"
- continue
- fi
-
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
-
- if test -f "$dir/$objdir/$dlname"; then
- dir="$dir/$objdir"
- else
- if test ! -f "$dir/$dlname"; then
- func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
- fi
- fi
- ;;
-
- *.lo)
- # Just add the directory containing the .lo file.
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
- ;;
-
- *)
- func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
- continue
- ;;
- esac
-
- # Get the absolute pathname.
- absdir=`cd "$dir" && pwd`
- test -n "$absdir" && dir="$absdir"
-
- # Now add the directory to shlibpath_var.
- if eval "test -z \"\$$shlibpath_var\""; then
- eval "$shlibpath_var=\"\$dir\""
- else
- eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
- fi
- done
-
- # This variable tells wrapper scripts just to set shlibpath_var
- # rather than running their programs.
- libtool_execute_magic="$magic"
-
- # Check if any of the arguments is a wrapper script.
- args=
- for file
- do
- case $file in
- -*) ;;
- *)
- # Do a test to see if this is really a libtool program.
- if func_ltwrapper_script_p "$file"; then
- func_source "$file"
- # Transform arg to wrapped name.
- file="$progdir/$program"
- elif func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- func_source "$func_ltwrapper_scriptname_result"
- # Transform arg to wrapped name.
- file="$progdir/$program"
- fi
- ;;
- esac
- # Quote arguments (to preserve shell metacharacters).
- func_quote_for_eval "$file"
- args="$args $func_quote_for_eval_result"
- done
-
- if test "X$opt_dry_run" = Xfalse; then
- if test -n "$shlibpath_var"; then
- # Export the shlibpath_var.
- eval "export $shlibpath_var"
- fi
-
- # Restore saved environment variables
- for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
- do
- eval "if test \"\${save_$lt_var+set}\" = set; then
- $lt_var=\$save_$lt_var; export $lt_var
- else
- $lt_unset $lt_var
- fi"
- done
-
- # Now prepare to actually exec the command.
- exec_cmd="\$cmd$args"
- else
- # Display what would be done.
- if test -n "$shlibpath_var"; then
- eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
- $ECHO "export $shlibpath_var"
- fi
- $ECHO "$cmd$args"
- exit $EXIT_SUCCESS
- fi
-}
-
-test "$mode" = execute && func_mode_execute ${1+"$@"}
-
-
-# func_mode_finish arg...
-func_mode_finish ()
-{
- $opt_debug
- libdirs="$nonopt"
- admincmds=
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- for dir
- do
- libdirs="$libdirs $dir"
- done
-
- for libdir in $libdirs; do
- if test -n "$finish_cmds"; then
- # Do each command in the finish commands.
- func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
-'"$cmd"'"'
- fi
- if test -n "$finish_eval"; then
- # Do the single finish_eval.
- eval cmds=\"$finish_eval\"
- $opt_dry_run || eval "$cmds" || admincmds="$admincmds
- $cmds"
- fi
- done
- fi
-
- # Exit here if they wanted silent mode.
- $opt_silent && exit $EXIT_SUCCESS
-
- $ECHO "X----------------------------------------------------------------------" | $Xsed
- $ECHO "Libraries have been installed in:"
- for libdir in $libdirs; do
- $ECHO " $libdir"
- done
- $ECHO
- $ECHO "If you ever happen to want to link against installed libraries"
- $ECHO "in a given directory, LIBDIR, you must either use libtool, and"
- $ECHO "specify the full pathname of the library, or use the \`-LLIBDIR'"
- $ECHO "flag during linking and do at least one of the following:"
- if test -n "$shlibpath_var"; then
- $ECHO " - add LIBDIR to the \`$shlibpath_var' environment variable"
- $ECHO " during execution"
- fi
- if test -n "$runpath_var"; then
- $ECHO " - add LIBDIR to the \`$runpath_var' environment variable"
- $ECHO " during linking"
- fi
- if test -n "$hardcode_libdir_flag_spec"; then
- libdir=LIBDIR
- eval flag=\"$hardcode_libdir_flag_spec\"
-
- $ECHO " - use the \`$flag' linker flag"
- fi
- if test -n "$admincmds"; then
- $ECHO " - have your system administrator run these commands:$admincmds"
- fi
- if test -f /etc/ld.so.conf; then
- $ECHO " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
- fi
- $ECHO
-
- $ECHO "See any operating system documentation about shared libraries for"
- case $host in
- solaris2.[6789]|solaris2.1[0-9])
- $ECHO "more information, such as the ld(1), crle(1) and ld.so(8) manual"
- $ECHO "pages."
- ;;
- *)
- $ECHO "more information, such as the ld(1) and ld.so(8) manual pages."
- ;;
- esac
- $ECHO "X----------------------------------------------------------------------" | $Xsed
- exit $EXIT_SUCCESS
-}
-
-test "$mode" = finish && func_mode_finish ${1+"$@"}
-
-
-# func_mode_install arg...
-func_mode_install ()
-{
- $opt_debug
- # There may be an optional sh(1) argument at the beginning of
- # install_prog (especially on Windows NT).
- if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
- # Allow the use of GNU shtool's install command.
- $ECHO "X$nonopt" | $GREP shtool >/dev/null; then
- # Aesthetically quote it.
- func_quote_for_eval "$nonopt"
- install_prog="$func_quote_for_eval_result "
- arg=$1
- shift
- else
- install_prog=
- arg=$nonopt
- fi
-
- # The real first argument should be the name of the installation program.
- # Aesthetically quote it.
- func_quote_for_eval "$arg"
- install_prog="$install_prog$func_quote_for_eval_result"
-
- # We need to accept at least all the BSD install flags.
- dest=
- files=
- opts=
- prev=
- install_type=
- isdir=no
- stripme=
- for arg
- do
- if test -n "$dest"; then
- files="$files $dest"
- dest=$arg
- continue
- fi
-
- case $arg in
- -d) isdir=yes ;;
- -f)
- case " $install_prog " in
- *[\\\ /]cp\ *) ;;
- *) prev=$arg ;;
- esac
- ;;
- -g | -m | -o)
- prev=$arg
- ;;
- -s)
- stripme=" -s"
- continue
- ;;
- -*)
- ;;
- *)
- # If the previous option needed an argument, then skip it.
- if test -n "$prev"; then
- prev=
- else
- dest=$arg
- continue
- fi
- ;;
- esac
-
- # Aesthetically quote the argument.
- func_quote_for_eval "$arg"
- install_prog="$install_prog $func_quote_for_eval_result"
- done
-
- test -z "$install_prog" && \
- func_fatal_help "you must specify an install program"
-
- test -n "$prev" && \
- func_fatal_help "the \`$prev' option requires an argument"
-
- if test -z "$files"; then
- if test -z "$dest"; then
- func_fatal_help "no file or destination specified"
- else
- func_fatal_help "you must specify a destination"
- fi
- fi
-
- # Strip any trailing slash from the destination.
- func_stripname '' '/' "$dest"
- dest=$func_stripname_result
-
- # Check to see that the destination is a directory.
- test -d "$dest" && isdir=yes
- if test "$isdir" = yes; then
- destdir="$dest"
- destname=
- else
- func_dirname_and_basename "$dest" "" "."
- destdir="$func_dirname_result"
- destname="$func_basename_result"
-
- # Not a directory, so check to see that there is only one file specified.
- set dummy $files; shift
- test "$#" -gt 1 && \
- func_fatal_help "\`$dest' is not a directory"
- fi
- case $destdir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- for file in $files; do
- case $file in
- *.lo) ;;
- *)
- func_fatal_help "\`$destdir' must be an absolute directory name"
- ;;
- esac
- done
- ;;
- esac
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic="$magic"
-
- staticlibs=
- future_libdirs=
- current_libdirs=
- for file in $files; do
-
- # Do each installation.
- case $file in
- *.$libext)
- # Do the static libraries later.
- staticlibs="$staticlibs $file"
- ;;
-
- *.la)
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$file' is not a valid libtool archive"
-
- library_names=
- old_library=
- relink_command=
- func_source "$file"
-
- # Add the libdir to current_libdirs if it is the destination.
- if test "X$destdir" = "X$libdir"; then
- case "$current_libdirs " in
- *" $libdir "*) ;;
- *) current_libdirs="$current_libdirs $libdir" ;;
- esac
- else
- # Note the libdir as a future libdir.
- case "$future_libdirs " in
- *" $libdir "*) ;;
- *) future_libdirs="$future_libdirs $libdir" ;;
- esac
- fi
-
- func_dirname "$file" "/" ""
- dir="$func_dirname_result"
- dir="$dir$objdir"
-
- if test -n "$relink_command"; then
- # Determine the prefix the user has applied to our future dir.
- inst_prefix_dir=`$ECHO "X$destdir" | $Xsed -e "s%$libdir\$%%"`
-
- # Don't allow the user to place us outside of our expected
- # location b/c this prevents finding dependent libraries that
- # are installed to the same prefix.
- # At present, this check doesn't affect windows .dll's that
- # are installed into $libdir/../bin (currently, that works fine)
- # but it's something to keep an eye on.
- test "$inst_prefix_dir" = "$destdir" && \
- func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
-
- if test -n "$inst_prefix_dir"; then
- # Stick the inst_prefix_dir data into the link command.
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
- else
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%%"`
- fi
-
- func_warning "relinking \`$file'"
- func_show_eval "$relink_command" \
- 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
- fi
-
- # See the names of the shared library.
- set dummy $library_names; shift
- if test -n "$1"; then
- realname="$1"
- shift
-
- srcname="$realname"
- test -n "$relink_command" && srcname="$realname"T
-
- # Install the shared library and build the symlinks.
- func_show_eval "$install_prog $dir/$srcname $destdir/$realname" \
- 'exit $?'
- tstripme="$stripme"
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- case $realname in
- *.dll.a)
- tstripme=""
- ;;
- esac
- ;;
- esac
- if test -n "$tstripme" && test -n "$striplib"; then
- func_show_eval "$striplib $destdir/$realname" 'exit $?'
- fi
-
- if test "$#" -gt 0; then
- # Delete the old symlinks, and create new ones.
- # Try `ln -sf' first, because the `ln' binary might depend on
- # the symlink we replace! Solaris /bin/ln does not understand -f,
- # so we also need to try rm && ln -s.
- for linkname
- do
- test "$linkname" != "$realname" \
- && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
- done
- fi
-
- # Do each command in the postinstall commands.
- lib="$destdir/$realname"
- func_execute_cmds "$postinstall_cmds" 'exit $?'
- fi
-
- # Install the pseudo-library for information purposes.
- func_basename "$file"
- name="$func_basename_result"
- instname="$dir/$name"i
- func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
-
- # Maybe install the static library, too.
- test -n "$old_library" && staticlibs="$staticlibs $dir/$old_library"
- ;;
-
- *.lo)
- # Install (i.e. copy) a libtool object.
-
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile="$destdir/$destname"
- else
- func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
- fi
-
- # Deduce the name of the destination old-style object file.
- case $destfile in
- *.lo)
- func_lo2o "$destfile"
- staticdest=$func_lo2o_result
- ;;
- *.$objext)
- staticdest="$destfile"
- destfile=
- ;;
- *)
- func_fatal_help "cannot copy a libtool object to \`$destfile'"
- ;;
- esac
-
- # Install the libtool object if requested.
- test -n "$destfile" && \
- func_show_eval "$install_prog $file $destfile" 'exit $?'
-
- # Install the old object if enabled.
- if test "$build_old_libs" = yes; then
- # Deduce the name of the old-style object file.
- func_lo2o "$file"
- staticobj=$func_lo2o_result
- func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
- fi
- exit $EXIT_SUCCESS
- ;;
-
- *)
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile="$destdir/$destname"
- else
- func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
- fi
-
- # If the file is missing, and there is a .exe on the end, strip it
- # because it is most likely a libtool script we actually want to
- # install
- stripped_ext=""
- case $file in
- *.exe)
- if test ! -f "$file"; then
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- stripped_ext=".exe"
- fi
- ;;
- esac
-
- # Do a test to see if this is really a libtool program.
- case $host in
- *cygwin* | *mingw*)
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- wrapper=$func_ltwrapper_scriptname_result
- else
- func_stripname '' '.exe' "$file"
- wrapper=$func_stripname_result
- fi
- ;;
- *)
- wrapper=$file
- ;;
- esac
- if func_ltwrapper_script_p "$wrapper"; then
- notinst_deplibs=
- relink_command=
-
- func_source "$wrapper"
-
- # Check the variables that should have been set.
- test -z "$generated_by_libtool_version" && \
- func_fatal_error "invalid libtool wrapper script \`$wrapper'"
-
- finalize=yes
- for lib in $notinst_deplibs; do
- # Check to see that each library is installed.
- libdir=
- if test -f "$lib"; then
- func_source "$lib"
- fi
- libfile="$libdir/"`$ECHO "X$lib" | $Xsed -e 's%^.*/%%g'` ### testsuite: skip nested quoting test
- if test -n "$libdir" && test ! -f "$libfile"; then
- func_warning "\`$lib' has not been installed in \`$libdir'"
- finalize=no
- fi
- done
-
- relink_command=
- func_source "$wrapper"
-
- outputname=
- if test "$fast_install" = no && test -n "$relink_command"; then
- $opt_dry_run || {
- if test "$finalize" = yes; then
- tmpdir=`func_mktempdir`
- func_basename "$file$stripped_ext"
- file="$func_basename_result"
- outputname="$tmpdir/$file"
- # Replace the output file specification.
- relink_command=`$ECHO "X$relink_command" | $Xsed -e 's%@OUTPUT@%'"$outputname"'%g'`
-
- $opt_silent || {
- func_quote_for_expand "$relink_command"
- eval "func_echo $func_quote_for_expand_result"
- }
- if eval "$relink_command"; then :
- else
- func_error "error: relink \`$file' with the above command before installing it"
- $opt_dry_run || ${RM}r "$tmpdir"
- continue
- fi
- file="$outputname"
- else
- func_warning "cannot relink \`$file'"
- fi
- }
- else
- # Install the binary that we compiled earlier.
- file=`$ECHO "X$file$stripped_ext" | $Xsed -e "s%\([^/]*\)$%$objdir/\1%"`
- fi
- fi
-
- # remove .exe since cygwin /usr/bin/install will append another
- # one anyway
- case $install_prog,$host in
- */usr/bin/install*,*cygwin*)
- case $file:$destfile in
- *.exe:*.exe)
- # this is ok
- ;;
- *.exe:*)
- destfile=$destfile.exe
- ;;
- *:*.exe)
- func_stripname '' '.exe' "$destfile"
- destfile=$func_stripname_result
- ;;
- esac
- ;;
- esac
- func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
- $opt_dry_run || if test -n "$outputname"; then
- ${RM}r "$tmpdir"
- fi
- ;;
- esac
- done
-
- for file in $staticlibs; do
- func_basename "$file"
- name="$func_basename_result"
-
- # Set up the ranlib parameters.
- oldlib="$destdir/$name"
-
- func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
-
- if test -n "$stripme" && test -n "$old_striplib"; then
- func_show_eval "$old_striplib $oldlib" 'exit $?'
- fi
-
- # Do each command in the postinstall commands.
- func_execute_cmds "$old_postinstall_cmds" 'exit $?'
- done
-
- test -n "$future_libdirs" && \
- func_warning "remember to run \`$progname --finish$future_libdirs'"
-
- if test -n "$current_libdirs"; then
- # Maybe just do a dry run.
- $opt_dry_run && current_libdirs=" -n$current_libdirs"
- exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
- else
- exit $EXIT_SUCCESS
- fi
-}
-
-test "$mode" = install && func_mode_install ${1+"$@"}
-
-
-# func_generate_dlsyms outputname originator pic_p
-# Extract symbols from dlprefiles and create ${outputname}S.o with
-# a dlpreopen symbol table.
-func_generate_dlsyms ()
-{
- $opt_debug
- my_outputname="$1"
- my_originator="$2"
- my_pic_p="${3-no}"
- my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
- my_dlsyms=
-
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- if test -n "$NM" && test -n "$global_symbol_pipe"; then
- my_dlsyms="${my_outputname}S.c"
- else
- func_error "not configured to extract global symbols from dlpreopened files"
- fi
- fi
-
- if test -n "$my_dlsyms"; then
- case $my_dlsyms in
- "") ;;
- *.c)
- # Discover the nlist of each of the dlfiles.
- nlist="$output_objdir/${my_outputname}.nm"
-
- func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
-
- # Parse the name list into a source file.
- func_verbose "creating $output_objdir/$my_dlsyms"
-
- $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
-
-#ifdef __cplusplus
-extern \"C\" {
-#endif
-
-/* External symbol declarations for the compiler. */\
-"
-
- if test "$dlself" = yes; then
- func_verbose "generating symbol list for \`$output'"
-
- $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
-
- # Add our own program objects to the symbol list.
- progfiles=`$ECHO "X$objs$old_deplibs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- for progfile in $progfiles; do
- func_verbose "extracting global C symbols from \`$progfile'"
- $opt_dry_run || eval "$NM $progfile | $global_symbol_pipe >> '$nlist'"
- done
-
- if test -n "$exclude_expsyms"; then
- $opt_dry_run || {
- eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- if test -n "$export_symbols_regex"; then
- $opt_dry_run || {
- eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- export_symbols="$output_objdir/$outputname.exp"
- $opt_dry_run || {
- $RM $export_symbols
- eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- else
- $opt_dry_run || {
- eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
- eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- case $host in
- *cygwin | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- fi
- fi
-
- for dlprefile in $dlprefiles; do
- func_verbose "extracting global C symbols from \`$dlprefile'"
- func_basename "$dlprefile"
- name="$func_basename_result"
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- done
-
- $opt_dry_run || {
- # Make sure we have at least an empty file.
- test -f "$nlist" || : > "$nlist"
-
- if test -n "$exclude_expsyms"; then
- $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
- $MV "$nlist"T "$nlist"
- fi
-
- # Try sorting and uniquifying the output.
- if $GREP -v "^: " < "$nlist" |
- if sort -k 3 </dev/null >/dev/null 2>&1; then
- sort -k 3
- else
- sort +2
- fi |
- uniq > "$nlist"S; then
- :
- else
- $GREP -v "^: " < "$nlist" > "$nlist"S
- fi
-
- if test -f "$nlist"S; then
- eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
- else
- $ECHO '/* NONE */' >> "$output_objdir/$my_dlsyms"
- fi
-
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-
-/* The mapping between symbol names and symbols. */
-typedef struct {
- const char *name;
- void *address;
-} lt_dlsymlist;
-"
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-/* DATA imports from DLLs on WIN32 con't be const, because
- runtime relocations are performed -- see ld's documentation
- on pseudo-relocs. */"
- lt_dlsym_const= ;;
- *osf5*)
- echo >> "$output_objdir/$my_dlsyms" "\
-/* This system does not cope well with relocations in const data */"
- lt_dlsym_const= ;;
- *)
- lt_dlsym_const=const ;;
- esac
-
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-extern $lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];
-$lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[] =
-{\
- { \"$my_originator\", (void *) 0 },"
-
- case $need_lib_prefix in
- no)
- eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- *)
- eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- esac
- $ECHO >> "$output_objdir/$my_dlsyms" "\
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt_${my_prefix}_LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif\
-"
- } # !$opt_dry_run
-
- pic_flag_for_symtable=
- case "$compile_command " in
- *" -static "*) ;;
- *)
- case $host in
- # compiling the symbol table file with pic_flag works around
- # a FreeBSD bug that causes programs to crash when -lm is
- # linked before any other PIC object. But we must not use
- # pic_flag when linking with -static. The problem exists in
- # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
- *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
- pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
- *-*-hpux*)
- pic_flag_for_symtable=" $pic_flag" ;;
- *)
- if test "X$my_pic_p" != Xno; then
- pic_flag_for_symtable=" $pic_flag"
- fi
- ;;
- esac
- ;;
- esac
- symtab_cflags=
- for arg in $LTCFLAGS; do
- case $arg in
- -pie | -fpie | -fPIE) ;;
- *) symtab_cflags="$symtab_cflags $arg" ;;
- esac
- done
-
- # Now compile the dynamic symbol file.
- func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
-
- # Clean up the generated files.
- func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
-
- # Transform the symbol file into the correct name.
- symfileobj="$output_objdir/${my_outputname}S.$objext"
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- if test -f "$output_objdir/$my_outputname.def"; then
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- else
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- fi
- ;;
- *)
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- ;;
- esac
- ;;
- *)
- func_fatal_error "unknown suffix for \`$my_dlsyms'"
- ;;
- esac
- else
- # We keep going just in case the user didn't refer to
- # lt_preloaded_symbols. The linker will fail if global_symbol_pipe
- # really was required.
-
- # Nullify the symbol file.
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s% @SYMFILE@%%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s% @SYMFILE@%%"`
- fi
-}
-
-# func_win32_libid arg
-# return the library type of file 'arg'
-#
-# Need a lot of goo to handle *both* DLLs and import libs
-# Has to be a shell function in order to 'eat' the argument
-# that is supplied when $file_magic_command is called.
-func_win32_libid ()
-{
- $opt_debug
- win32_libid_type="unknown"
- win32_fileres=`file -L $1 2>/dev/null`
- case $win32_fileres in
- *ar\ archive\ import\ library*) # definitely import
- win32_libid_type="x86 archive import"
- ;;
- *ar\ archive*) # could be an import, or static
- if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
- $EGREP 'file format pe-i386(.*architecture: i386)?' >/dev/null ; then
- win32_nmres=`eval $NM -f posix -A $1 |
- $SED -n -e '
- 1,100{
- / I /{
- s,.*,import,
- p
- q
- }
- }'`
- case $win32_nmres in
- import*) win32_libid_type="x86 archive import";;
- *) win32_libid_type="x86 archive static";;
- esac
- fi
- ;;
- *DLL*)
- win32_libid_type="x86 DLL"
- ;;
- *executable*) # but shell scripts are "executable" too...
- case $win32_fileres in
- *MS\ Windows\ PE\ Intel*)
- win32_libid_type="x86 DLL"
- ;;
- esac
- ;;
- esac
- $ECHO "$win32_libid_type"
-}
-
-
-
-# func_extract_an_archive dir oldlib
-func_extract_an_archive ()
-{
- $opt_debug
- f_ex_an_ar_dir="$1"; shift
- f_ex_an_ar_oldlib="$1"
- func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" 'exit $?'
- if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
- fi
-}
-
-
-# func_extract_archives gentop oldlib ...
-func_extract_archives ()
-{
- $opt_debug
- my_gentop="$1"; shift
- my_oldlibs=${1+"$@"}
- my_oldobjs=""
- my_xlib=""
- my_xabs=""
- my_xdir=""
-
- for my_xlib in $my_oldlibs; do
- # Extract the objects.
- case $my_xlib in
- [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
- *) my_xabs=`pwd`"/$my_xlib" ;;
- esac
- func_basename "$my_xlib"
- my_xlib="$func_basename_result"
- my_xlib_u=$my_xlib
- while :; do
- case " $extracted_archives " in
- *" $my_xlib_u "*)
- func_arith $extracted_serial + 1
- extracted_serial=$func_arith_result
- my_xlib_u=lt$extracted_serial-$my_xlib ;;
- *) break ;;
- esac
- done
- extracted_archives="$extracted_archives $my_xlib_u"
- my_xdir="$my_gentop/$my_xlib_u"
-
- func_mkdir_p "$my_xdir"
-
- case $host in
- *-darwin*)
- func_verbose "Extracting $my_xabs"
- # Do not bother doing anything if just a dry run
- $opt_dry_run || {
- darwin_orig_dir=`pwd`
- cd $my_xdir || exit $?
- darwin_archive=$my_xabs
- darwin_curdir=`pwd`
- darwin_base_archive=`basename "$darwin_archive"`
- darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
- if test -n "$darwin_arches"; then
- darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
- darwin_arch=
- func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
- for darwin_arch in $darwin_arches ; do
- func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
- cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- func_extract_an_archive "`pwd`" "${darwin_base_archive}"
- cd "$darwin_curdir"
- $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
- done # $darwin_arches
- ## Okay now we've a bunch of thin objects, gotta fatten them up :)
- darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
- darwin_file=
- darwin_files=
- for darwin_file in $darwin_filelist; do
- darwin_files=`find unfat-$$ -name $darwin_file -print | $NL2SP`
- $LIPO -create -output "$darwin_file" $darwin_files
- done # $darwin_filelist
- $RM -rf unfat-$$
- cd "$darwin_orig_dir"
- else
- cd $darwin_orig_dir
- func_extract_an_archive "$my_xdir" "$my_xabs"
- fi # $darwin_arches
- } # !$opt_dry_run
- ;;
- *)
- func_extract_an_archive "$my_xdir" "$my_xabs"
- ;;
- esac
- my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | $NL2SP`
- done
-
- func_extract_archives_result="$my_oldobjs"
-}
-
-
-
-# func_emit_wrapper_part1 [arg=no]
-#
-# Emit the first part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part1 ()
-{
- func_emit_wrapper_part1_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_part1_arg1=$1
- fi
-
- $ECHO "\
-#! $SHELL
-
-# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# The $output program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed='${SED} -e 1s/^X//'
-sed_quote_subst='$sed_quote_subst'
-
-# Be Bourne compatible
-if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '\${1+\"\$@\"}'='\"\$@\"'
- setopt NO_GLOB_SUBST
-else
- case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=\"$relink_command\"
-
-# This environment variable determines our operation mode.
-if test \"\$libtool_install_magic\" = \"$magic\"; then
- # install mode needs the following variables:
- generated_by_libtool_version='$macro_version'
- notinst_deplibs='$notinst_deplibs'
-else
- # When we are sourced in execute mode, \$file and \$ECHO are already set.
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- ECHO=\"$qecho\"
- file=\"\$0\"
- # Make sure echo works.
- if test \"X\$1\" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
- elif test \"X\`{ \$ECHO '\t'; } 2>/dev/null\`\" = 'X\t'; then
- # Yippee, \$ECHO works!
- :
- else
- # Restart under the correct shell, and then maybe \$ECHO will work.
- exec $SHELL \"\$0\" --no-reexec \${1+\"\$@\"}
- fi
- fi\
-"
- $ECHO "\
-
- # Find the directory that this script lives in.
- thisdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*$%%'\`
- test \"x\$thisdir\" = \"x\$file\" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=\`ls -ld \"\$file\" | ${SED} -n 's/.*-> //p'\`
- while test -n \"\$file\"; do
- destdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*\$%%'\`
-
- # If there was a directory component, then change thisdir.
- if test \"x\$destdir\" != \"x\$file\"; then
- case \"\$destdir\" in
- [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
- *) thisdir=\"\$thisdir/\$destdir\" ;;
- esac
- fi
-
- file=\`\$ECHO \"X\$file\" | \$Xsed -e 's%^.*/%%'\`
- file=\`ls -ld \"\$thisdir/\$file\" | ${SED} -n 's/.*-> //p'\`
- done
-"
-}
-# end: func_emit_wrapper_part1
-
-# func_emit_wrapper_part2 [arg=no]
-#
-# Emit the second part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part2 ()
-{
- func_emit_wrapper_part2_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_part2_arg1=$1
- fi
-
- $ECHO "\
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_part2_arg1
- if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
- # special case for '.'
- if test \"\$thisdir\" = \".\"; then
- thisdir=\`pwd\`
- fi
- # remove .libs from thisdir
- case \"\$thisdir\" in
- *[\\\\/]$objdir ) thisdir=\`\$ECHO \"X\$thisdir\" | \$Xsed -e 's%[\\\\/][^\\\\/]*$%%'\` ;;
- $objdir ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=\`cd \"\$thisdir\" && pwd\`
- test -n \"\$absdir\" && thisdir=\"\$absdir\"
-"
-
- if test "$fast_install" = yes; then
- $ECHO "\
- program=lt-'$outputname'$exeext
- progdir=\"\$thisdir/$objdir\"
-
- if test ! -f \"\$progdir/\$program\" ||
- { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
- test \"X\$file\" != \"X\$progdir/\$program\"; }; then
-
- file=\"\$\$-\$program\"
-
- if test ! -d \"\$progdir\"; then
- $MKDIR \"\$progdir\"
- else
- $RM \"\$progdir/\$file\"
- fi"
-
- $ECHO "\
-
- # relink executable if necessary
- if test -n \"\$relink_command\"; then
- if relink_command_output=\`eval \$relink_command 2>&1\`; then :
- else
- $ECHO \"\$relink_command_output\" >&2
- $RM \"\$progdir/\$file\"
- exit 1
- fi
- fi
-
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
- { $RM \"\$progdir/\$program\";
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
- $RM \"\$progdir/\$file\"
- fi"
- else
- $ECHO "\
- program='$outputname'
- progdir=\"\$thisdir/$objdir\"
-"
- fi
-
- $ECHO "\
-
- if test -f \"\$progdir/\$program\"; then"
-
- # Export our shlibpath_var if we have one.
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- $ECHO "\
- # Add our own library path to $shlibpath_var
- $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
-
- # Some systems cannot cope with colon-terminated $shlibpath_var
- # The second colon is a workaround for a bug in BeOS R4 sed
- $shlibpath_var=\`\$ECHO \"X\$$shlibpath_var\" | \$Xsed -e 's/::*\$//'\`
-
- export $shlibpath_var
-"
- fi
-
- # fixup the dll searchpath if we need to.
- if test -n "$dllsearchpath"; then
- $ECHO "\
- # Add the dll search path components to the executable PATH
- PATH=$dllsearchpath:\$PATH
-"
- fi
-
- $ECHO "\
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- # Run the actual program with our arguments.
-"
- case $host in
- # Backslashes separate directories on plain windows
- *-*-mingw | *-*-os2* | *-cegcc*)
- $ECHO "\
- exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
-"
- ;;
-
- *)
- $ECHO "\
- exec \"\$progdir/\$program\" \${1+\"\$@\"}
-"
- ;;
- esac
- $ECHO "\
- \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
- exit 1
- fi
- else
- # The program doesn't exist.
- \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
- \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
- $ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
- exit 1
- fi
-fi\
-"
-}
-# end: func_emit_wrapper_part2
-
-
-# func_emit_wrapper [arg=no]
-#
-# Emit a libtool wrapper script on stdout.
-# Don't directly open a file because we may want to
-# incorporate the script contents within a cygwin/mingw
-# wrapper executable. Must ONLY be called from within
-# func_mode_link because it depends on a number of variables
-# set therein.
-#
-# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
-# variable will take. If 'yes', then the emitted script
-# will assume that the directory in which it is stored is
-# the $objdir directory. This is a cygwin/mingw-specific
-# behavior.
-func_emit_wrapper ()
-{
- func_emit_wrapper_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_arg1=$1
- fi
-
- # split this up so that func_emit_cwrapperexe_src
- # can call each part independently.
- func_emit_wrapper_part1 "${func_emit_wrapper_arg1}"
- func_emit_wrapper_part2 "${func_emit_wrapper_arg1}"
-}
-
-
-# func_to_host_path arg
-#
-# Convert paths to host format when used with build tools.
-# Intended for use with "native" mingw (where libtool itself
-# is running under the msys shell), or in the following cross-
-# build environments:
-# $build $host
-# mingw (msys) mingw [e.g. native]
-# cygwin mingw
-# *nix + wine mingw
-# where wine is equipped with the `winepath' executable.
-# In the native mingw case, the (msys) shell automatically
-# converts paths for any non-msys applications it launches,
-# but that facility isn't available from inside the cwrapper.
-# Similar accommodations are necessary for $host mingw and
-# $build cygwin. Calling this function does no harm for other
-# $host/$build combinations not listed above.
-#
-# ARG is the path (on $build) that should be converted to
-# the proper representation for $host. The result is stored
-# in $func_to_host_path_result.
-func_to_host_path ()
-{
- func_to_host_path_result="$1"
- if test -n "$1" ; then
- case $host in
- *mingw* )
- lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
- case $build in
- *mingw* ) # actually, msys
- # awkward: cmd appends spaces to result
- lt_sed_strip_trailing_spaces="s/[ ]*\$//"
- func_to_host_path_tmp1=`( cmd //c echo "$1" |\
- $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- *cygwin* )
- func_to_host_path_tmp1=`cygpath -w "$1"`
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- * )
- # Unfortunately, winepath does not exit with a non-zero
- # error code, so we are forced to check the contents of
- # stdout. On the other hand, if the command is not
- # found, the shell will set an exit code of 127 and print
- # *an error message* to stdout. So we must check for both
- # error code of zero AND non-empty stdout, which explains
- # the odd construction:
- func_to_host_path_tmp1=`winepath -w "$1" 2>/dev/null`
- if test "$?" -eq 0 && test -n "${func_to_host_path_tmp1}"; then
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- else
- # Allow warning below.
- func_to_host_path_result=""
- fi
- ;;
- esac
- if test -z "$func_to_host_path_result" ; then
- func_error "Could not determine host path corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback:
- func_to_host_path_result="$1"
- fi
- ;;
- esac
- fi
-}
-# end: func_to_host_path
-
-# func_to_host_pathlist arg
-#
-# Convert pathlists to host format when used with build tools.
-# See func_to_host_path(), above. This function supports the
-# following $build/$host combinations (but does no harm for
-# combinations not listed here):
-# $build $host
-# mingw (msys) mingw [e.g. native]
-# cygwin mingw
-# *nix + wine mingw
-#
-# Path separators are also converted from $build format to
-# $host format. If ARG begins or ends with a path separator
-# character, it is preserved (but converted to $host format)
-# on output.
-#
-# ARG is a pathlist (on $build) that should be converted to
-# the proper representation on $host. The result is stored
-# in $func_to_host_pathlist_result.
-func_to_host_pathlist ()
-{
- func_to_host_pathlist_result="$1"
- if test -n "$1" ; then
- case $host in
- *mingw* )
- lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
- # Remove leading and trailing path separator characters from
- # ARG. msys behavior is inconsistent here, cygpath turns them
- # into '.;' and ';.', and winepath ignores them completely.
- func_to_host_pathlist_tmp2="$1"
- # Once set for this call, this variable should not be
- # reassigned. It is used in tha fallback case.
- func_to_host_pathlist_tmp1=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e 's|^:*||' -e 's|:*$||'`
- case $build in
- *mingw* ) # Actually, msys.
- # Awkward: cmd appends spaces to result.
- lt_sed_strip_trailing_spaces="s/[ ]*\$//"
- func_to_host_pathlist_tmp2=`( cmd //c echo "$func_to_host_pathlist_tmp1" |\
- $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- *cygwin* )
- func_to_host_pathlist_tmp2=`cygpath -w -p "$func_to_host_pathlist_tmp1"`
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- * )
- # unfortunately, winepath doesn't convert pathlists
- func_to_host_pathlist_result=""
- func_to_host_pathlist_oldIFS=$IFS
- IFS=:
- for func_to_host_pathlist_f in $func_to_host_pathlist_tmp1 ; do
- IFS=$func_to_host_pathlist_oldIFS
- if test -n "$func_to_host_pathlist_f" ; then
- func_to_host_path "$func_to_host_pathlist_f"
- if test -n "$func_to_host_path_result" ; then
- if test -z "$func_to_host_pathlist_result" ; then
- func_to_host_pathlist_result="$func_to_host_path_result"
- else
- func_to_host_pathlist_result="$func_to_host_pathlist_result;$func_to_host_path_result"
- fi
- fi
- fi
- IFS=:
- done
- IFS=$func_to_host_pathlist_oldIFS
- ;;
- esac
- if test -z "$func_to_host_pathlist_result" ; then
- func_error "Could not determine the host path(s) corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback. This may break if $1 contains DOS-style drive
- # specifications. The fix is not to complicate the expression
- # below, but for the user to provide a working wine installation
- # with winepath so that path translation in the cross-to-mingw
- # case works properly.
- lt_replace_pathsep_nix_to_dos="s|:|;|g"
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp1" |\
- $SED -e "$lt_replace_pathsep_nix_to_dos"`
- fi
- # Now, add the leading and trailing path separators back
- case "$1" in
- :* ) func_to_host_pathlist_result=";$func_to_host_pathlist_result"
- ;;
- esac
- case "$1" in
- *: ) func_to_host_pathlist_result="$func_to_host_pathlist_result;"
- ;;
- esac
- ;;
- esac
- fi
-}
-# end: func_to_host_pathlist
-
-# func_emit_cwrapperexe_src
-# emit the source code for a wrapper executable on stdout
-# Must ONLY be called from within func_mode_link because
-# it depends on a number of variable set therein.
-func_emit_cwrapperexe_src ()
-{
- cat <<EOF
-
-/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
- Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-
- The $output program cannot be directly executed until all the libtool
- libraries that it depends on are installed.
-
- This wrapper executable should never be moved out of the build directory.
- If it is, it will not operate correctly.
-
- Currently, it simply execs the wrapper *script* "$SHELL $output",
- but could eventually absorb all of the scripts functionality and
- exec $objdir/$outputname directly.
-*/
-EOF
- cat <<"EOF"
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-# include <direct.h>
-# include <process.h>
-# include <io.h>
-# define setmode _setmode
-#else
-# include <unistd.h>
-# include <stdint.h>
-# ifdef __CYGWIN__
-# include <io.h>
-# define HAVE_SETENV
-# ifdef __STRICT_ANSI__
-char *realpath (const char *, char *);
-int putenv (char *);
-int setenv (const char *, const char *, int);
-# endif
-# endif
-#endif
-#include <malloc.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#if defined(PATH_MAX)
-# define LT_PATHMAX PATH_MAX
-#elif defined(MAXPATHLEN)
-# define LT_PATHMAX MAXPATHLEN
-#else
-# define LT_PATHMAX 1024
-#endif
-
-#ifndef S_IXOTH
-# define S_IXOTH 0
-#endif
-#ifndef S_IXGRP
-# define S_IXGRP 0
-#endif
-
-#ifdef _MSC_VER
-# define S_IXUSR _S_IEXEC
-# define stat _stat
-# ifndef _INTPTR_T_DEFINED
-# define intptr_t int
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR
-# define DIR_SEPARATOR '/'
-# define PATH_SEPARATOR ':'
-#endif
-
-#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
- defined (__OS2__)
-# define HAVE_DOS_BASED_FILE_SYSTEM
-# define FOPEN_WB "wb"
-# ifndef DIR_SEPARATOR_2
-# define DIR_SEPARATOR_2 '\\'
-# endif
-# ifndef PATH_SEPARATOR_2
-# define PATH_SEPARATOR_2 ';'
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR_2
-# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
-#else /* DIR_SEPARATOR_2 */
-# define IS_DIR_SEPARATOR(ch) \
- (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
-#endif /* DIR_SEPARATOR_2 */
-
-#ifndef PATH_SEPARATOR_2
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
-#else /* PATH_SEPARATOR_2 */
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
-#endif /* PATH_SEPARATOR_2 */
-
-#ifdef __CYGWIN__
-# define FOPEN_WB "wb"
-#endif
-
-#ifndef FOPEN_WB
-# define FOPEN_WB "w"
-#endif
-#ifndef _O_BINARY
-# define _O_BINARY 0
-#endif
-
-#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
-#define XFREE(stale) do { \
- if (stale) { free ((void *) stale); stale = 0; } \
-} while (0)
-
-#undef LTWRAPPER_DEBUGPRINTF
-#if defined DEBUGWRAPPER
-# define LTWRAPPER_DEBUGPRINTF(args) ltwrapper_debugprintf args
-static void
-ltwrapper_debugprintf (const char *fmt, ...)
-{
- va_list args;
- va_start (args, fmt);
- (void) vfprintf (stderr, fmt, args);
- va_end (args);
-}
-#else
-# define LTWRAPPER_DEBUGPRINTF(args)
-#endif
-
-const char *program_name = NULL;
-
-void *xmalloc (size_t num);
-char *xstrdup (const char *string);
-const char *base_name (const char *name);
-char *find_executable (const char *wrapper);
-char *chase_symlinks (const char *pathspec);
-int make_executable (const char *path);
-int check_executable (const char *path);
-char *strendzap (char *str, const char *pat);
-void lt_fatal (const char *message, ...);
-void lt_setenv (const char *name, const char *value);
-char *lt_extend_str (const char *orig_value, const char *add, int to_end);
-void lt_opt_process_env_set (const char *arg);
-void lt_opt_process_env_prepend (const char *arg);
-void lt_opt_process_env_append (const char *arg);
-int lt_split_name_value (const char *arg, char** name, char** value);
-void lt_update_exe_path (const char *name, const char *value);
-void lt_update_lib_path (const char *name, const char *value);
-
-static const char *script_text_part1 =
-EOF
-
- func_emit_wrapper_part1 yes |
- $SED -e 's/\([\\"]\)/\\\1/g' \
- -e 's/^/ "/' -e 's/$/\\n"/'
- echo ";"
- cat <<EOF
-
-static const char *script_text_part2 =
-EOF
- func_emit_wrapper_part2 yes |
- $SED -e 's/\([\\"]\)/\\\1/g' \
- -e 's/^/ "/' -e 's/$/\\n"/'
- echo ";"
-
- cat <<EOF
-const char * MAGIC_EXE = "$magic_exe";
-const char * LIB_PATH_VARNAME = "$shlibpath_var";
-EOF
-
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- func_to_host_pathlist "$temp_rpath"
- cat <<EOF
-const char * LIB_PATH_VALUE = "$func_to_host_pathlist_result";
-EOF
- else
- cat <<"EOF"
-const char * LIB_PATH_VALUE = "";
-EOF
- fi
-
- if test -n "$dllsearchpath"; then
- func_to_host_pathlist "$dllsearchpath:"
- cat <<EOF
-const char * EXE_PATH_VARNAME = "PATH";
-const char * EXE_PATH_VALUE = "$func_to_host_pathlist_result";
-EOF
- else
- cat <<"EOF"
-const char * EXE_PATH_VARNAME = "";
-const char * EXE_PATH_VALUE = "";
-EOF
- fi
-
- if test "$fast_install" = yes; then
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
-EOF
- else
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
-EOF
- fi
-
-
- cat <<"EOF"
-
-#define LTWRAPPER_OPTION_PREFIX "--lt-"
-#define LTWRAPPER_OPTION_PREFIX_LENGTH 5
-
-static const size_t opt_prefix_len = LTWRAPPER_OPTION_PREFIX_LENGTH;
-static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
-
-static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script";
-
-static const size_t env_set_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 7;
-static const char *env_set_opt = LTWRAPPER_OPTION_PREFIX "env-set";
- /* argument is putenv-style "foo=bar", value of foo is set to bar */
-
-static const size_t env_prepend_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 11;
-static const char *env_prepend_opt = LTWRAPPER_OPTION_PREFIX "env-prepend";
- /* argument is putenv-style "foo=bar", new value of foo is bar${foo} */
-
-static const size_t env_append_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 10;
-static const char *env_append_opt = LTWRAPPER_OPTION_PREFIX "env-append";
- /* argument is putenv-style "foo=bar", new value of foo is ${foo}bar */
-
-int
-main (int argc, char *argv[])
-{
- char **newargz;
- int newargc;
- char *tmp_pathspec;
- char *actual_cwrapper_path;
- char *actual_cwrapper_name;
- char *target_name;
- char *lt_argv_zero;
- intptr_t rval = 127;
-
- int i;
-
- program_name = (char *) xstrdup (base_name (argv[0]));
- LTWRAPPER_DEBUGPRINTF (("(main) argv[0] : %s\n", argv[0]));
- LTWRAPPER_DEBUGPRINTF (("(main) program_name : %s\n", program_name));
-
- /* very simple arg parsing; don't want to rely on getopt */
- for (i = 1; i < argc; i++)
- {
- if (strcmp (argv[i], dumpscript_opt) == 0)
- {
-EOF
- case "$host" in
- *mingw* | *cygwin* )
- # make stdout use "unix" line endings
- echo " setmode(1,_O_BINARY);"
- ;;
- esac
-
- cat <<"EOF"
- printf ("%s", script_text_part1);
- printf ("%s", script_text_part2);
- return 0;
- }
- }
-
- newargz = XMALLOC (char *, argc + 1);
- tmp_pathspec = find_executable (argv[0]);
- if (tmp_pathspec == NULL)
- lt_fatal ("Couldn't find %s", argv[0]);
- LTWRAPPER_DEBUGPRINTF (("(main) found exe (before symlink chase) at : %s\n",
- tmp_pathspec));
-
- actual_cwrapper_path = chase_symlinks (tmp_pathspec);
- LTWRAPPER_DEBUGPRINTF (("(main) found exe (after symlink chase) at : %s\n",
- actual_cwrapper_path));
- XFREE (tmp_pathspec);
-
- actual_cwrapper_name = xstrdup( base_name (actual_cwrapper_path));
- strendzap (actual_cwrapper_path, actual_cwrapper_name);
-
- /* wrapper name transforms */
- strendzap (actual_cwrapper_name, ".exe");
- tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
- XFREE (actual_cwrapper_name);
- actual_cwrapper_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- /* target_name transforms -- use actual target program name; might have lt- prefix */
- target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
- strendzap (target_name, ".exe");
- tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
- XFREE (target_name);
- target_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- LTWRAPPER_DEBUGPRINTF (("(main) libtool target name: %s\n",
- target_name));
-EOF
-
- cat <<EOF
- newargz[0] =
- XMALLOC (char, (strlen (actual_cwrapper_path) +
- strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
- strcpy (newargz[0], actual_cwrapper_path);
- strcat (newargz[0], "$objdir");
- strcat (newargz[0], "/");
-EOF
-
- cat <<"EOF"
- /* stop here, and copy so we don't have to do this twice */
- tmp_pathspec = xstrdup (newargz[0]);
-
- /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
- strcat (newargz[0], actual_cwrapper_name);
-
- /* DO want the lt- prefix here if it exists, so use target_name */
- lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
- XFREE (tmp_pathspec);
- tmp_pathspec = NULL;
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- {
- char* p;
- while ((p = strchr (newargz[0], '\\')) != NULL)
- {
- *p = '/';
- }
- while ((p = strchr (lt_argv_zero, '\\')) != NULL)
- {
- *p = '/';
- }
- }
-EOF
- ;;
- esac
-
- cat <<"EOF"
- XFREE (target_name);
- XFREE (actual_cwrapper_path);
- XFREE (actual_cwrapper_name);
-
- lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
- lt_setenv ("DUALCASE", "1"); /* for MSK sh */
- lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
- lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
-
- newargc=0;
- for (i = 1; i < argc; i++)
- {
- if (strncmp (argv[i], env_set_opt, env_set_opt_len) == 0)
- {
- if (argv[i][env_set_opt_len] == '=')
- {
- const char *p = argv[i] + env_set_opt_len + 1;
- lt_opt_process_env_set (p);
- }
- else if (argv[i][env_set_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_set (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_set_opt);
- continue;
- }
- if (strncmp (argv[i], env_prepend_opt, env_prepend_opt_len) == 0)
- {
- if (argv[i][env_prepend_opt_len] == '=')
- {
- const char *p = argv[i] + env_prepend_opt_len + 1;
- lt_opt_process_env_prepend (p);
- }
- else if (argv[i][env_prepend_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_prepend (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_prepend_opt);
- continue;
- }
- if (strncmp (argv[i], env_append_opt, env_append_opt_len) == 0)
- {
- if (argv[i][env_append_opt_len] == '=')
- {
- const char *p = argv[i] + env_append_opt_len + 1;
- lt_opt_process_env_append (p);
- }
- else if (argv[i][env_append_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_append (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_append_opt);
- continue;
- }
- if (strncmp (argv[i], ltwrapper_option_prefix, opt_prefix_len) == 0)
- {
- /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
- namespace, but it is not one of the ones we know about and
- have already dealt with, above (inluding dump-script), then
- report an error. Otherwise, targets might begin to believe
- they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
- namespace. The first time any user complains about this, we'll
- need to make LTWRAPPER_OPTION_PREFIX a configure-time option
- or a configure.ac-settable value.
- */
- lt_fatal ("Unrecognized option in %s namespace: '%s'",
- ltwrapper_option_prefix, argv[i]);
- }
- /* otherwise ... */
- newargz[++newargc] = xstrdup (argv[i]);
- }
- newargz[++newargc] = NULL;
-
- LTWRAPPER_DEBUGPRINTF (("(main) lt_argv_zero : %s\n", (lt_argv_zero ? lt_argv_zero : "<NULL>")));
- for (i = 0; i < newargc; i++)
- {
- LTWRAPPER_DEBUGPRINTF (("(main) newargz[%d] : %s\n", i, (newargz[i] ? newargz[i] : "<NULL>")));
- }
-
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- /* execv doesn't actually work on mingw as expected on unix */
- rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
- if (rval == -1)
- {
- /* failed to start process */
- LTWRAPPER_DEBUGPRINTF (("(main) failed to launch target \"%s\": errno = %d\n", lt_argv_zero, errno));
- return 127;
- }
- return rval;
-EOF
- ;;
- *)
- cat <<"EOF"
- execv (lt_argv_zero, newargz);
- return rval; /* =127, but avoids unused variable warning */
-EOF
- ;;
- esac
-
- cat <<"EOF"
-}
-
-void *
-xmalloc (size_t num)
-{
- void *p = (void *) malloc (num);
- if (!p)
- lt_fatal ("Memory exhausted");
-
- return p;
-}
-
-char *
-xstrdup (const char *string)
-{
- return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
- string) : NULL;
-}
-
-const char *
-base_name (const char *name)
-{
- const char *base;
-
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- /* Skip over the disk name in MSDOS pathnames. */
- if (isalpha ((unsigned char) name[0]) && name[1] == ':')
- name += 2;
-#endif
-
- for (base = name; *name; name++)
- if (IS_DIR_SEPARATOR (*name))
- base = name + 1;
- return base;
-}
-
-int
-check_executable (const char *path)
-{
- struct stat st;
-
- LTWRAPPER_DEBUGPRINTF (("(check_executable) : %s\n",
- path ? (*path ? path : "EMPTY!") : "NULL!"));
- if ((!path) || (!*path))
- return 0;
-
- if ((stat (path, &st) >= 0)
- && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
- return 1;
- else
- return 0;
-}
-
-int
-make_executable (const char *path)
-{
- int rval = 0;
- struct stat st;
-
- LTWRAPPER_DEBUGPRINTF (("(make_executable) : %s\n",
- path ? (*path ? path : "EMPTY!") : "NULL!"));
- if ((!path) || (!*path))
- return 0;
-
- if (stat (path, &st) >= 0)
- {
- rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
- }
- return rval;
-}
-
-/* Searches for the full path of the wrapper. Returns
- newly allocated full path name if found, NULL otherwise
- Does not chase symlinks, even on platforms that support them.
-*/
-char *
-find_executable (const char *wrapper)
-{
- int has_slash = 0;
- const char *p;
- const char *p_next;
- /* static buffer for getcwd */
- char tmp[LT_PATHMAX + 1];
- int tmp_len;
- char *concat_name;
-
- LTWRAPPER_DEBUGPRINTF (("(find_executable) : %s\n",
- wrapper ? (*wrapper ? wrapper : "EMPTY!") : "NULL!"));
-
- if ((wrapper == NULL) || (*wrapper == '\0'))
- return NULL;
-
- /* Absolute path? */
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- else
- {
-#endif
- if (IS_DIR_SEPARATOR (wrapper[0]))
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- }
-#endif
-
- for (p = wrapper; *p; p++)
- if (*p == '/')
- {
- has_slash = 1;
- break;
- }
- if (!has_slash)
- {
- /* no slashes; search PATH */
- const char *path = getenv ("PATH");
- if (path != NULL)
- {
- for (p = path; *p; p = p_next)
- {
- const char *q;
- size_t p_len;
- for (q = p; *q; q++)
- if (IS_PATH_SEPARATOR (*q))
- break;
- p_len = q - p;
- p_next = (*q == '\0' ? q : q + 1);
- if (p_len == 0)
- {
- /* empty path: current directory */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal ("getcwd failed");
- tmp_len = strlen (tmp);
- concat_name =
- XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
- }
- else
- {
- concat_name =
- XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, p, p_len);
- concat_name[p_len] = '/';
- strcpy (concat_name + p_len + 1, wrapper);
- }
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- }
- /* not found in PATH; assume curdir */
- }
- /* Relative path | not found in path: prepend cwd */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal ("getcwd failed");
- tmp_len = strlen (tmp);
- concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
-
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- return NULL;
-}
-
-char *
-chase_symlinks (const char *pathspec)
-{
-#ifndef S_ISLNK
- return xstrdup (pathspec);
-#else
- char buf[LT_PATHMAX];
- struct stat s;
- char *tmp_pathspec = xstrdup (pathspec);
- char *p;
- int has_symlinks = 0;
- while (strlen (tmp_pathspec) && !has_symlinks)
- {
- LTWRAPPER_DEBUGPRINTF (("checking path component for symlinks: %s\n",
- tmp_pathspec));
- if (lstat (tmp_pathspec, &s) == 0)
- {
- if (S_ISLNK (s.st_mode) != 0)
- {
- has_symlinks = 1;
- break;
- }
-
- /* search backwards for last DIR_SEPARATOR */
- p = tmp_pathspec + strlen (tmp_pathspec) - 1;
- while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- p--;
- if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- {
- /* no more DIR_SEPARATORS left */
- break;
- }
- *p = '\0';
- }
- else
- {
- char *errstr = strerror (errno);
- lt_fatal ("Error accessing file %s (%s)", tmp_pathspec, errstr);
- }
- }
- XFREE (tmp_pathspec);
-
- if (!has_symlinks)
- {
- return xstrdup (pathspec);
- }
-
- tmp_pathspec = realpath (pathspec, buf);
- if (tmp_pathspec == 0)
- {
- lt_fatal ("Could not follow symlinks for %s", pathspec);
- }
- return xstrdup (tmp_pathspec);
-#endif
-}
-
-char *
-strendzap (char *str, const char *pat)
-{
- size_t len, patlen;
-
- assert (str != NULL);
- assert (pat != NULL);
-
- len = strlen (str);
- patlen = strlen (pat);
-
- if (patlen <= len)
- {
- str += len - patlen;
- if (strcmp (str, pat) == 0)
- *str = '\0';
- }
- return str;
-}
-
-static void
-lt_error_core (int exit_status, const char *mode,
- const char *message, va_list ap)
-{
- fprintf (stderr, "%s: %s: ", program_name, mode);
- vfprintf (stderr, message, ap);
- fprintf (stderr, ".\n");
-
- if (exit_status >= 0)
- exit (exit_status);
-}
-
-void
-lt_fatal (const char *message, ...)
-{
- va_list ap;
- va_start (ap, message);
- lt_error_core (EXIT_FAILURE, "FATAL", message, ap);
- va_end (ap);
-}
-
-void
-lt_setenv (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_setenv) setting '%s' to '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
- {
-#ifdef HAVE_SETENV
- /* always make a copy, for consistency with !HAVE_SETENV */
- char *str = xstrdup (value);
- setenv (name, str, 1);
-#else
- int len = strlen (name) + 1 + strlen (value) + 1;
- char *str = XMALLOC (char, len);
- sprintf (str, "%s=%s", name, value);
- if (putenv (str) != EXIT_SUCCESS)
- {
- XFREE (str);
- }
-#endif
- }
-}
-
-char *
-lt_extend_str (const char *orig_value, const char *add, int to_end)
-{
- char *new_value;
- if (orig_value && *orig_value)
- {
- int orig_value_len = strlen (orig_value);
- int add_len = strlen (add);
- new_value = XMALLOC (char, add_len + orig_value_len + 1);
- if (to_end)
- {
- strcpy (new_value, orig_value);
- strcpy (new_value + orig_value_len, add);
- }
- else
- {
- strcpy (new_value, add);
- strcpy (new_value + add_len, orig_value);
- }
- }
- else
- {
- new_value = xstrdup (add);
- }
- return new_value;
-}
-
-int
-lt_split_name_value (const char *arg, char** name, char** value)
-{
- const char *p;
- int len;
- if (!arg || !*arg)
- return 1;
-
- p = strchr (arg, (int)'=');
-
- if (!p)
- return 1;
-
- *value = xstrdup (++p);
-
- len = strlen (arg) - strlen (*value);
- *name = XMALLOC (char, len);
- strncpy (*name, arg, len-1);
- (*name)[len - 1] = '\0';
-
- return 0;
-}
-
-void
-lt_opt_process_env_set (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_set_opt, arg);
- }
-
- lt_setenv (name, value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_opt_process_env_prepend (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
- char *new_value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_prepend_opt, arg);
- }
-
- new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_opt_process_env_append (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
- char *new_value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_append_opt, arg);
- }
-
- new_value = lt_extend_str (getenv (name), value, 1);
- lt_setenv (name, new_value);
- XFREE (new_value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_update_exe_path (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- /* some systems can't cope with a ':'-terminated path #' */
- int len = strlen (new_value);
- while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
- {
- new_value[len-1] = '\0';
- }
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-void
-lt_update_lib_path (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-
-EOF
-}
-# end: func_emit_cwrapperexe_src
-
-# func_mode_link arg...
-func_mode_link ()
-{
- $opt_debug
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- # It is impossible to link a dll without this setting, and
- # we shouldn't force the makefile maintainer to figure out
- # which system we are compiling for in order to pass an extra
- # flag for every libtool invocation.
- # allow_undefined=no
-
- # FIXME: Unfortunately, there are problems with the above when trying
- # to make a dll which has undefined symbols, in which case not
- # even a static library is built. For now, we need to specify
- # -no-undefined on the libtool link line when we can be certain
- # that all symbols are satisfied, otherwise we get a static library.
- allow_undefined=yes
- ;;
- *)
- allow_undefined=yes
- ;;
- esac
- libtool_args=$nonopt
- base_compile="$nonopt $@"
- compile_command=$nonopt
- finalize_command=$nonopt
-
- compile_rpath=
- finalize_rpath=
- compile_shlibpath=
- finalize_shlibpath=
- convenience=
- old_convenience=
- deplibs=
- old_deplibs=
- compiler_flags=
- linker_flags=
- dllsearchpath=
- lib_search_path=`pwd`
- inst_prefix_dir=
- new_inherited_linker_flags=
-
- avoid_version=no
- dlfiles=
- dlprefiles=
- dlself=no
- export_dynamic=no
- export_symbols=
- export_symbols_regex=
- generated=
- libobjs=
- ltlibs=
- module=no
- no_install=no
- objs=
- non_pic_objects=
- precious_files_regex=
- prefer_static_libs=no
- preload=no
- prev=
- prevarg=
- release=
- rpath=
- xrpath=
- perm_rpath=
- temp_rpath=
- thread_safe=no
- vinfo=
- vinfo_number=no
- weak_libs=
- single_module="${wl}-single_module"
- func_infer_tag $base_compile
-
- # We need to know -static, to get the right output filenames.
- for arg
- do
- case $arg in
- -shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
- build_old_libs=no
- break
- ;;
- -all-static | -static | -static-libtool-libs)
- case $arg in
- -all-static)
- if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
- func_warning "complete static linking is impossible in this configuration"
- fi
- if test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- -static)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=built
- ;;
- -static-libtool-libs)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- esac
- build_libtool_libs=no
- build_old_libs=yes
- break
- ;;
- esac
- done
-
- # See if our shared archives depend on static archives.
- test -n "$old_archive_from_new_cmds" && build_old_libs=yes
-
- # Go through the arguments, transforming them on the way.
- while test "$#" -gt 0; do
- arg="$1"
- shift
- func_quote_for_eval "$arg"
- qarg=$func_quote_for_eval_unquoted_result
- func_append libtool_args " $func_quote_for_eval_result"
-
- # If the previous option needs an argument, assign it.
- if test -n "$prev"; then
- case $prev in
- output)
- func_append compile_command " @OUTPUT@"
- func_append finalize_command " @OUTPUT@"
- ;;
- esac
-
- case $prev in
- dlfiles|dlprefiles)
- if test "$preload" = no; then
- # Add the symbol object into the linking commands.
- func_append compile_command " @SYMFILE@"
- func_append finalize_command " @SYMFILE@"
- preload=yes
- fi
- case $arg in
- *.la | *.lo) ;; # We handle these cases below.
- force)
- if test "$dlself" = no; then
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- self)
- if test "$prev" = dlprefiles; then
- dlself=yes
- elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
- dlself=yes
- else
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- *)
- if test "$prev" = dlfiles; then
- dlfiles="$dlfiles $arg"
- else
- dlprefiles="$dlprefiles $arg"
- fi
- prev=
- continue
- ;;
- esac
- ;;
- expsyms)
- export_symbols="$arg"
- test -f "$arg" \
- || func_fatal_error "symbol file \`$arg' does not exist"
- prev=
- continue
- ;;
- expsyms_regex)
- export_symbols_regex="$arg"
- prev=
- continue
- ;;
- framework)
- case $host in
- *-*-darwin*)
- case "$deplibs " in
- *" $qarg.ltframework "*) ;;
- *) deplibs="$deplibs $qarg.ltframework" # this is fixed later
- ;;
- esac
- ;;
- esac
- prev=
- continue
- ;;
- inst_prefix)
- inst_prefix_dir="$arg"
- prev=
- continue
- ;;
- objectlist)
- if test -f "$arg"; then
- save_arg=$arg
- moreargs=
- for fil in `cat "$save_arg"`
- do
-# moreargs="$moreargs $fil"
- arg=$fil
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- if test "$pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
-
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
- dlfiles="$dlfiles $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
- # Preload the old-style object.
- dlprefiles="$dlprefiles $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
-
- # Non-PIC object.
- if test "$non_pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "\`$arg' is not a valid libtool object"
- fi
- fi
- done
- else
- func_fatal_error "link input file \`$arg' does not exist"
- fi
- arg=$save_arg
- prev=
- continue
- ;;
- precious_regex)
- precious_files_regex="$arg"
- prev=
- continue
- ;;
- release)
- release="-$arg"
- prev=
- continue
- ;;
- rpath | xrpath)
- # We need an absolute path.
- case $arg in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- if test "$prev" = rpath; then
- case "$rpath " in
- *" $arg "*) ;;
- *) rpath="$rpath $arg" ;;
- esac
- else
- case "$xrpath " in
- *" $arg "*) ;;
- *) xrpath="$xrpath $arg" ;;
- esac
- fi
- prev=
- continue
- ;;
- shrext)
- shrext_cmds="$arg"
- prev=
- continue
- ;;
- weak)
- weak_libs="$weak_libs $arg"
- prev=
- continue
- ;;
- xcclinker)
- linker_flags="$linker_flags $qarg"
- compiler_flags="$compiler_flags $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xcompiler)
- compiler_flags="$compiler_flags $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xlinker)
- linker_flags="$linker_flags $qarg"
- compiler_flags="$compiler_flags $wl$qarg"
- prev=
- func_append compile_command " $wl$qarg"
- func_append finalize_command " $wl$qarg"
- continue
- ;;
- *)
- eval "$prev=\"\$arg\""
- prev=
- continue
- ;;
- esac
- fi # test -n "$prev"
-
- prevarg="$arg"
-
- case $arg in
- -all-static)
- if test -n "$link_static_flag"; then
- # See comment for -static flag below, for more details.
- func_append compile_command " $link_static_flag"
- func_append finalize_command " $link_static_flag"
- fi
- continue
- ;;
-
- -allow-undefined)
- # FIXME: remove this flag sometime in the future.
- func_fatal_error "\`-allow-undefined' must not be used because it is the default"
- ;;
-
- -avoid-version)
- avoid_version=yes
- continue
- ;;
-
- -dlopen)
- prev=dlfiles
- continue
- ;;
-
- -dlpreopen)
- prev=dlprefiles
- continue
- ;;
-
- -export-dynamic)
- export_dynamic=yes
- continue
- ;;
-
- -export-symbols | -export-symbols-regex)
- if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
- func_fatal_error "more than one -exported-symbols argument is not allowed"
- fi
- if test "X$arg" = "X-export-symbols"; then
- prev=expsyms
- else
- prev=expsyms_regex
- fi
- continue
- ;;
-
- -framework)
- prev=framework
- continue
- ;;
-
- -inst-prefix-dir)
- prev=inst_prefix
- continue
- ;;
-
- # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
- # so, if we see these flags be careful not to treat them like -L
- -L[A-Z][A-Z]*:*)
- case $with_gcc/$host in
- no/*-*-irix* | /*-*-irix*)
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- ;;
- esac
- continue
- ;;
-
- -L*)
- func_stripname '-L' '' "$arg"
- dir=$func_stripname_result
- if test -z "$dir"; then
- if test "$#" -gt 0; then
- func_fatal_error "require no space between \`-L' and \`$1'"
- else
- func_fatal_error "need path for \`-L' option"
- fi
- fi
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- absdir=`cd "$dir" && pwd`
- test -z "$absdir" && \
- func_fatal_error "cannot determine absolute directory name of \`$dir'"
- dir="$absdir"
- ;;
- esac
- case "$deplibs " in
- *" -L$dir "*) ;;
- *)
- deplibs="$deplibs -L$dir"
- lib_search_path="$lib_search_path $dir"
- ;;
- esac
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "X$dir" | $Xsed -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$dir:"*) ;;
- ::) dllsearchpath=$dir;;
- *) dllsearchpath="$dllsearchpath:$dir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) dllsearchpath="$dllsearchpath:$testbindir";;
- esac
- ;;
- esac
- continue
- ;;
-
- -l*)
- if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc*)
- # These systems don't actually have a C or math library (as such)
- continue
- ;;
- *-*-os2*)
- # These systems don't actually have a C library (as such)
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C and math libraries are in the System framework
- deplibs="$deplibs System.ltframework"
- continue
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- test "X$arg" = "X-lc" && continue
- ;;
- esac
- elif test "X$arg" = "X-lc_r"; then
- case $host in
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc_r directly, use -pthread flag.
- continue
- ;;
- esac
- fi
- deplibs="$deplibs $arg"
- continue
- ;;
-
- -module)
- module=yes
- continue
- ;;
-
- # Tru64 UNIX uses -model [arg] to determine the layout of C++
- # classes, name mangling, and exception handling.
- # Darwin uses the -arch flag to determine output architecture.
- -model|-arch|-isysroot)
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- prev=xcompiler
- continue
- ;;
-
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case "$new_inherited_linker_flags " in
- *" $arg "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $arg" ;;
- esac
- continue
- ;;
-
- -multi_module)
- single_module="${wl}-multi_module"
- continue
- ;;
-
- -no-fast-install)
- fast_install=no
- continue
- ;;
-
- -no-install)
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
- # The PATH hackery in wrapper scripts is required on Windows
- # and Darwin in order for the loader to find any dlls it needs.
- func_warning "\`-no-install' is ignored for $host"
- func_warning "assuming \`-no-fast-install' instead"
- fast_install=no
- ;;
- *) no_install=yes ;;
- esac
- continue
- ;;
-
- -no-undefined)
- allow_undefined=no
- continue
- ;;
-
- -objectlist)
- prev=objectlist
- continue
- ;;
-
- -o) prev=output ;;
-
- -precious-files-regex)
- prev=precious_regex
- continue
- ;;
-
- -release)
- prev=release
- continue
- ;;
-
- -rpath)
- prev=rpath
- continue
- ;;
-
- -R)
- prev=xrpath
- continue
- ;;
-
- -R*)
- func_stripname '-R' '' "$arg"
- dir=$func_stripname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- case "$xrpath " in
- *" $dir "*) ;;
- *) xrpath="$xrpath $dir" ;;
- esac
- continue
- ;;
-
- -shared)
- # The effects of -shared are defined in a previous loop.
- continue
- ;;
-
- -shrext)
- prev=shrext
- continue
- ;;
-
- -static | -static-libtool-libs)
- # The effects of -static are defined in a previous loop.
- # We used to do the same as -all-static on platforms that
- # didn't have a PIC flag, but the assumption that the effects
- # would be equivalent was wrong. It would break on at least
- # Digital Unix and AIX.
- continue
- ;;
-
- -thread-safe)
- thread_safe=yes
- continue
- ;;
-
- -version-info)
- prev=vinfo
- continue
- ;;
-
- -version-number)
- prev=vinfo
- vinfo_number=yes
- continue
- ;;
-
- -weak)
- prev=weak
- continue
- ;;
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs="$IFS"; IFS=','
- for flag in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$flag"
- arg="$arg $wl$func_quote_for_eval_result"
- compiler_flags="$compiler_flags $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Wl,*)
- func_stripname '-Wl,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs="$IFS"; IFS=','
- for flag in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$flag"
- arg="$arg $wl$func_quote_for_eval_result"
- compiler_flags="$compiler_flags $wl$func_quote_for_eval_result"
- linker_flags="$linker_flags $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Xcompiler)
- prev=xcompiler
- continue
- ;;
-
- -Xlinker)
- prev=xlinker
- continue
- ;;
-
- -XCClinker)
- prev=xcclinker
- continue
- ;;
-
- # -msg_* for osf cc
- -msg_*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
-
- # -64, -mips[0-9] enable 64-bit mode on the SGI compiler
- # -r[0-9][0-9]* specifies the processor on the SGI compiler
- # -xarch=*, -xtarget=* enable 64-bit mode on the Sun compiler
- # +DA*, +DD* enable 64-bit mode on the HP compiler
- # -q* pass through compiler args for the IBM compiler
- # -m*, -t[45]*, -txscale* pass through architecture-specific
- # compiler args for GCC
- # -F/path gives path to uninstalled frameworks, gcc on darwin
- # -p, -pg, --coverage, -fprofile-* pass through profiling flag for GCC
- # @file GCC response files
- -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
- -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- compiler_flags="$compiler_flags $arg"
- continue
- ;;
-
- # Some other compiler flag.
- -* | +*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
-
- *.$objext)
- # A standard object.
- objs="$objs $arg"
- ;;
-
- *.lo)
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- if test "$pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
-
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
- dlfiles="$dlfiles $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
- # Preload the old-style object.
- dlprefiles="$dlprefiles $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
-
- # Non-PIC object.
- if test "$non_pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "\`$arg' is not a valid libtool object"
- fi
- fi
- ;;
-
- *.$libext)
- # An archive.
- deplibs="$deplibs $arg"
- old_deplibs="$old_deplibs $arg"
- continue
- ;;
-
- *.la)
- # A libtool-controlled library.
-
- if test "$prev" = dlfiles; then
- # This library was specified with -dlopen.
- dlfiles="$dlfiles $arg"
- prev=
- elif test "$prev" = dlprefiles; then
- # The library was specified with -dlpreopen.
- dlprefiles="$dlprefiles $arg"
- prev=
- else
- deplibs="$deplibs $arg"
- fi
- continue
- ;;
-
- # Some other compiler argument.
- *)
- # Unknown arguments in both finalize_command and compile_command need
- # to be aesthetically quoted because they are evaled later.
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
- esac # arg
-
- # Now actually substitute the argument into the commands.
- if test -n "$arg"; then
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
- done # argument parsing loop
-
- test -n "$prev" && \
- func_fatal_help "the \`$prevarg' option requires an argument"
-
- if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
- eval arg=\"$export_dynamic_flag_spec\"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
-
- oldlibs=
- # calculate the name of the file, without its directory
- func_basename "$output"
- outputname="$func_basename_result"
- libobjs_save="$libobjs"
-
- if test -n "$shlibpath_var"; then
- # get the directories listed in $shlibpath_var
- eval shlib_search_path=\`\$ECHO \"X\${$shlibpath_var}\" \| \$Xsed -e \'s/:/ /g\'\`
- else
- shlib_search_path=
- fi
- eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
- eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
-
- func_dirname "$output" "/" ""
- output_objdir="$func_dirname_result$objdir"
- # Create the object directory.
- func_mkdir_p "$output_objdir"
-
- # Determine the type of output
- case $output in
- "")
- func_fatal_help "you must specify an output file"
- ;;
- *.$libext) linkmode=oldlib ;;
- *.lo | *.$objext) linkmode=obj ;;
- *.la) linkmode=lib ;;
- *) linkmode=prog ;; # Anything else should be a program.
- esac
-
- specialdeplibs=
-
- libs=
- # Find all interdependent deplibs by searching for libraries
- # that are linked more than once (e.g. -la -lb -la)
- for deplib in $deplibs; do
- if $opt_duplicate_deps ; then
- case "$libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- libs="$libs $deplib"
- done
-
- if test "$linkmode" = lib; then
- libs="$predeps $libs $compiler_lib_search_path $postdeps"
-
- # Compute libraries that are listed more than once in $predeps
- # $postdeps and mark them as special (i.e., whose duplicates are
- # not to be eliminated).
- pre_post_deps=
- if $opt_duplicate_compiler_generated_deps; then
- for pre_post_dep in $predeps $postdeps; do
- case "$pre_post_deps " in
- *" $pre_post_dep "*) specialdeplibs="$specialdeplibs $pre_post_deps" ;;
- esac
- pre_post_deps="$pre_post_deps $pre_post_dep"
- done
- fi
- pre_post_deps=
- fi
-
- deplibs=
- newdependency_libs=
- newlib_search_path=
- need_relink=no # whether we're linking any uninstalled libtool libraries
- notinst_deplibs= # not-installed libtool libraries
- notinst_path= # paths that contain not-installed libtool libraries
-
- case $linkmode in
- lib)
- passes="conv dlpreopen link"
- for file in $dlfiles $dlprefiles; do
- case $file in
- *.la) ;;
- *)
- func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
- ;;
- esac
- done
- ;;
- prog)
- compile_deplibs=
- finalize_deplibs=
- alldeplibs=no
- newdlfiles=
- newdlprefiles=
- passes="conv scan dlopen dlpreopen link"
- ;;
- *) passes="conv"
- ;;
- esac
-
- for pass in $passes; do
- # The preopen pass in lib mode reverses $deplibs; put it back here
- # so that -L comes before libs that need it for instance...
- if test "$linkmode,$pass" = "lib,link"; then
- ## FIXME: Find the place where the list is rebuilt in the wrong
- ## order, and fix it there properly
- tmp_deplibs=
- for deplib in $deplibs; do
- tmp_deplibs="$deplib $tmp_deplibs"
- done
- deplibs="$tmp_deplibs"
- fi
-
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan"; then
- libs="$deplibs"
- deplibs=
- fi
- if test "$linkmode" = prog; then
- case $pass in
- dlopen) libs="$dlfiles" ;;
- dlpreopen) libs="$dlprefiles" ;;
- link)
- libs="$deplibs %DEPLIBS%"
- test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
- ;;
- esac
- fi
- if test "$linkmode,$pass" = "lib,dlpreopen"; then
- # Collect and forward deplibs of preopened libtool libs
- for lib in $dlprefiles; do
- # Ignore non-libtool-libs
- dependency_libs=
- case $lib in
- *.la) func_source "$lib" ;;
- esac
-
- # Collect preopened libtool deplibs, except any this library
- # has declared as weak libs
- for deplib in $dependency_libs; do
- deplib_base=`$ECHO "X$deplib" | $Xsed -e "$basename"`
- case " $weak_libs " in
- *" $deplib_base "*) ;;
- *) deplibs="$deplibs $deplib" ;;
- esac
- done
- done
- libs="$dlprefiles"
- fi
- if test "$pass" = dlopen; then
- # Collect dlpreopened libraries
- save_deplibs="$deplibs"
- deplibs=
- fi
-
- for deplib in $libs; do
- lib=
- found=no
- case $deplib in
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- compiler_flags="$compiler_flags $deplib"
- if test "$linkmode" = lib ; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -l*)
- if test "$linkmode" != lib && test "$linkmode" != prog; then
- func_warning "\`-l' is ignored for archives/objects"
- continue
- fi
- func_stripname '-l' '' "$deplib"
- name=$func_stripname_result
- if test "$linkmode" = lib; then
- searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
- else
- searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
- fi
- for searchdir in $searchdirs; do
- for search_ext in .la $std_shrext .so .a; do
- # Search the libtool library
- lib="$searchdir/lib${name}${search_ext}"
- if test -f "$lib"; then
- if test "$search_ext" = ".la"; then
- found=yes
- else
- found=no
- fi
- break 2
- fi
- done
- done
- if test "$found" != yes; then
- # deplib doesn't seem to be a libtool library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- else # deplib is a libtool library
- # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
- # We need to do some special things here, and not later.
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $deplib "*)
- if func_lalib_p "$lib"; then
- library_names=
- old_library=
- func_source "$lib"
- for l in $old_library $library_names; do
- ll="$l"
- done
- if test "X$ll" = "X$old_library" ; then # only static version available
- found=no
- func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
- lib=$ladir/$old_library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- fi
- ;;
- *) ;;
- esac
- fi
- fi
- ;; # -l
- *.ltframework)
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- if test "$linkmode" = lib ; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -L*)
- case $linkmode in
- lib)
- deplibs="$deplib $deplibs"
- test "$pass" = conv && continue
- newdependency_libs="$deplib $newdependency_libs"
- func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- prog)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- continue
- fi
- if test "$pass" = scan; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- *)
- func_warning "\`-L' is ignored for archives/objects"
- ;;
- esac # linkmode
- continue
- ;; # -L
- -R*)
- if test "$pass" = link; then
- func_stripname '-R' '' "$deplib"
- dir=$func_stripname_result
- # Make sure the xrpath contains only unique directories.
- case "$xrpath " in
- *" $dir "*) ;;
- *) xrpath="$xrpath $dir" ;;
- esac
- fi
- deplibs="$deplib $deplibs"
- continue
- ;;
- *.la) lib="$deplib" ;;
- *.$libext)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- continue
- fi
- case $linkmode in
- lib)
- # Linking convenience modules into shared libraries is allowed,
- # but linking other static libraries is non-portable.
- case " $dlpreconveniencelibs " in
- *" $deplib "*) ;;
- *)
- valid_a_lib=no
- case $deplibs_check_method in
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- if eval "\$ECHO \"X$deplib\"" 2>/dev/null | $Xsed -e 10q \
- | $EGREP "$match_pattern_regex" > /dev/null; then
- valid_a_lib=yes
- fi
- ;;
- pass_all)
- valid_a_lib=yes
- ;;
- esac
- if test "$valid_a_lib" != yes; then
- $ECHO
- $ECHO "*** Warning: Trying to link with static lib archive $deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because the file extensions .$libext of this argument makes me believe"
- $ECHO "*** that it is just a static archive that I should not use here."
- else
- $ECHO
- $ECHO "*** Warning: Linking the shared library $output against the"
- $ECHO "*** static library $deplib is not portable!"
- deplibs="$deplib $deplibs"
- fi
- ;;
- esac
- continue
- ;;
- prog)
- if test "$pass" != link; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- continue
- ;;
- esac # linkmode
- ;; # *.$libext
- *.lo | *.$objext)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- elif test "$linkmode" = prog; then
- if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
- # If there is no dlopen support or we're linking statically,
- # we need to preload.
- newdlprefiles="$newdlprefiles $deplib"
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- newdlfiles="$newdlfiles $deplib"
- fi
- fi
- continue
- ;;
- %DEPLIBS%)
- alldeplibs=yes
- continue
- ;;
- esac # case $deplib
-
- if test "$found" = yes || test -f "$lib"; then :
- else
- func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
- fi
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$lib" \
- || func_fatal_error "\`$lib' is not a valid libtool archive"
-
- func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
-
- dlname=
- dlopen=
- dlpreopen=
- libdir=
- library_names=
- old_library=
- inherited_linker_flags=
- # If the library was installed with an old release of libtool,
- # it will not redefine variables installed, or shouldnotlink
- installed=yes
- shouldnotlink=no
- avoidtemprpath=
-
-
- # Read the .la file
- func_source "$lib"
-
- # Convert "-framework foo" to "foo.ltframework"
- if test -n "$inherited_linker_flags"; then
- tmp_inherited_linker_flags=`$ECHO "X$inherited_linker_flags" | $Xsed -e 's/-framework \([^ $]*\)/\1.ltframework/g'`
- for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
- case " $new_inherited_linker_flags " in
- *" $tmp_inherited_linker_flag "*) ;;
- *) new_inherited_linker_flags="$new_inherited_linker_flags $tmp_inherited_linker_flag";;
- esac
- done
- fi
- dependency_libs=`$ECHO "X $dependency_libs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan" ||
- { test "$linkmode" != prog && test "$linkmode" != lib; }; then
- test -n "$dlopen" && dlfiles="$dlfiles $dlopen"
- test -n "$dlpreopen" && dlprefiles="$dlprefiles $dlpreopen"
- fi
-
- if test "$pass" = conv; then
- # Only check for convenience libraries
- deplibs="$lib $deplibs"
- if test -z "$libdir"; then
- if test -z "$old_library"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
- fi
- # It is a libtool convenience library, so add in its objects.
- convenience="$convenience $ladir/$objdir/$old_library"
- old_convenience="$old_convenience $ladir/$objdir/$old_library"
- tmp_libs=
- for deplib in $dependency_libs; do
- deplibs="$deplib $deplibs"
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done
- elif test "$linkmode" != prog && test "$linkmode" != lib; then
- func_fatal_error "\`$lib' is not a convenience library"
- fi
- continue
- fi # $pass = conv
-
-
- # Get the name of the library we link against.
- linklib=
- for l in $old_library $library_names; do
- linklib="$l"
- done
- if test -z "$linklib"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
- fi
-
- # This library was specified with -dlopen.
- if test "$pass" = dlopen; then
- if test -z "$libdir"; then
- func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
- fi
- if test -z "$dlname" ||
- test "$dlopen_support" != yes ||
- test "$build_libtool_libs" = no; then
- # If there is no dlname, no dlopen support or we're linking
- # statically, we need to preload. We also need to preload any
- # dependent libraries so libltdl's deplib preloader doesn't
- # bomb out in the load deplibs phase.
- dlprefiles="$dlprefiles $lib $dependency_libs"
- else
- newdlfiles="$newdlfiles $lib"
- fi
- continue
- fi # $pass = dlopen
-
- # We need an absolute path.
- case $ladir in
- [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
- *)
- abs_ladir=`cd "$ladir" && pwd`
- if test -z "$abs_ladir"; then
- func_warning "cannot determine absolute directory name of \`$ladir'"
- func_warning "passing it literally to the linker, although it might fail"
- abs_ladir="$ladir"
- fi
- ;;
- esac
- func_basename "$lib"
- laname="$func_basename_result"
-
- # Find the relevant object directory and library name.
- if test "X$installed" = Xyes; then
- if test ! -f "$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- func_warning "library \`$lib' was moved."
- dir="$ladir"
- absdir="$abs_ladir"
- libdir="$abs_ladir"
- else
- dir="$libdir"
- absdir="$libdir"
- fi
- test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
- else
- if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- dir="$ladir"
- absdir="$abs_ladir"
- # Remove this search path later
- notinst_path="$notinst_path $abs_ladir"
- else
- dir="$ladir/$objdir"
- absdir="$abs_ladir/$objdir"
- # Remove this search path later
- notinst_path="$notinst_path $abs_ladir"
- fi
- fi # $installed = yes
- func_stripname 'lib' '.la' "$laname"
- name=$func_stripname_result
-
- # This library was specified with -dlpreopen.
- if test "$pass" = dlpreopen; then
- if test -z "$libdir" && test "$linkmode" = prog; then
- func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
- fi
- # Prefer using a static library (so that no silly _DYNAMIC symbols
- # are required to link).
- if test -n "$old_library"; then
- newdlprefiles="$newdlprefiles $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
- # Otherwise, use the dlname, so that lt_dlopen finds it.
- elif test -n "$dlname"; then
- newdlprefiles="$newdlprefiles $dir/$dlname"
- else
- newdlprefiles="$newdlprefiles $dir/$linklib"
- fi
- fi # $pass = dlpreopen
-
- if test -z "$libdir"; then
- # Link the convenience library
- if test "$linkmode" = lib; then
- deplibs="$dir/$old_library $deplibs"
- elif test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$dir/$old_library $compile_deplibs"
- finalize_deplibs="$dir/$old_library $finalize_deplibs"
- else
- deplibs="$lib $deplibs" # used for prog,scan pass
- fi
- continue
- fi
-
-
- if test "$linkmode" = prog && test "$pass" != link; then
- newlib_search_path="$newlib_search_path $ladir"
- deplibs="$lib $deplibs"
-
- linkalldeplibs=no
- if test "$link_all_deplibs" != no || test -z "$library_names" ||
- test "$build_libtool_libs" = no; then
- linkalldeplibs=yes
- fi
-
- tmp_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- esac
- # Need to link against all dependency_libs?
- if test "$linkalldeplibs" = yes; then
- deplibs="$deplib $deplibs"
- else
- # Need to hardcode shared library paths
- # or/and link against static libraries
- newdependency_libs="$deplib $newdependency_libs"
- fi
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done # for deplib
- continue
- fi # $linkmode = prog...
-
- if test "$linkmode,$pass" = "prog,link"; then
- if test -n "$library_names" &&
- { { test "$prefer_static_libs" = no ||
- test "$prefer_static_libs,$installed" = "built,yes"; } ||
- test -z "$old_library"; }; then
- # We need to hardcode the library path
- if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
- # Make sure the rpath contains only unique directories.
- case "$temp_rpath:" in
- *"$absdir:"*) ;;
- *) temp_rpath="$temp_rpath$absdir:" ;;
- esac
- fi
-
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) compile_rpath="$compile_rpath $absdir"
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir"
- esac
- ;;
- esac
- fi # $linkmode,$pass = prog,link...
-
- if test "$alldeplibs" = yes &&
- { test "$deplibs_check_method" = pass_all ||
- { test "$build_libtool_libs" = yes &&
- test -n "$library_names"; }; }; then
- # We only need to search for static libraries
- continue
- fi
- fi
-
- link_static=no # Whether the deplib will be linked statically
- use_static_libs=$prefer_static_libs
- if test "$use_static_libs" = built && test "$installed" = yes; then
- use_static_libs=no
- fi
- if test -n "$library_names" &&
- { test "$use_static_libs" = no || test -z "$old_library"; }; then
- case $host in
- *cygwin* | *mingw* | *cegcc*)
- # No point in relinking DLLs because paths are not encoded
- notinst_deplibs="$notinst_deplibs $lib"
- need_relink=no
- ;;
- *)
- if test "$installed" = no; then
- notinst_deplibs="$notinst_deplibs $lib"
- need_relink=yes
- fi
- ;;
- esac
- # This is a shared library
-
- # Warn about portability, can't link against -module's on some
- # systems (darwin). Don't bleat about dlopened modules though!
- dlopenmodule=""
- for dlpremoduletest in $dlprefiles; do
- if test "X$dlpremoduletest" = "X$lib"; then
- dlopenmodule="$dlpremoduletest"
- break
- fi
- done
- if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
- $ECHO
- if test "$linkmode" = prog; then
- $ECHO "*** Warning: Linking the executable $output against the loadable module"
- else
- $ECHO "*** Warning: Linking the shared library $output against the loadable module"
- fi
- $ECHO "*** $linklib is not portable!"
- fi
- if test "$linkmode" = lib &&
- test "$hardcode_into_libs" = yes; then
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) compile_rpath="$compile_rpath $absdir"
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir"
- esac
- ;;
- esac
- fi
-
- if test -n "$old_archive_from_expsyms_cmds"; then
- # figure out the soname
- set dummy $library_names
- shift
- realname="$1"
- shift
- libname=`eval "\\$ECHO \"$libname_spec\""`
- # use dlname if we got it. it's perfectly good, no?
- if test -n "$dlname"; then
- soname="$dlname"
- elif test -n "$soname_spec"; then
- # bleh windows
- case $host in
- *cygwin* | mingw* | *cegcc*)
- func_arith $current - $age
- major=$func_arith_result
- versuffix="-$major"
- ;;
- esac
- eval soname=\"$soname_spec\"
- else
- soname="$realname"
- fi
-
- # Make a new name for the extract_expsyms_cmds to use
- soroot="$soname"
- func_basename "$soroot"
- soname="$func_basename_result"
- func_stripname 'lib' '.dll' "$soname"
- newlib=libimp-$func_stripname_result.a
-
- # If the library has no export list, then create one now
- if test -f "$output_objdir/$soname-def"; then :
- else
- func_verbose "extracting exported symbol list from \`$soname'"
- func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
- fi
-
- # Create $newlib
- if test -f "$output_objdir/$newlib"; then :; else
- func_verbose "generating import library for \`$soname'"
- func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
- fi
- # make sure the library variables are pointing to the new library
- dir=$output_objdir
- linklib=$newlib
- fi # test -n "$old_archive_from_expsyms_cmds"
-
- if test "$linkmode" = prog || test "$mode" != relink; then
- add_shlibpath=
- add_dir=
- add=
- lib_linked=yes
- case $hardcode_action in
- immediate | unsupported)
- if test "$hardcode_direct" = no; then
- add="$dir/$linklib"
- case $host in
- *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
- *-*-sysv4*uw2*) add_dir="-L$dir" ;;
- *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
- *-*-unixware7*) add_dir="-L$dir" ;;
- *-*-darwin* )
- # if the lib is a (non-dlopened) module then we can not
- # link against it, someone is ignoring the earlier warnings
- if /usr/bin/file -L $add 2> /dev/null |
- $GREP ": [^:]* bundle" >/dev/null ; then
- if test "X$dlopenmodule" != "X$lib"; then
- $ECHO "*** Warning: lib $linklib is a module, not a shared library"
- if test -z "$old_library" ; then
- $ECHO
- $ECHO "*** And there doesn't seem to be a static archive available"
- $ECHO "*** The link will probably fail, sorry"
- else
- add="$dir/$old_library"
- fi
- elif test -n "$old_library"; then
- add="$dir/$old_library"
- fi
- fi
- esac
- elif test "$hardcode_minus_L" = no; then
- case $host in
- *-*-sunos*) add_shlibpath="$dir" ;;
- esac
- add_dir="-L$dir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = no; then
- add_shlibpath="$dir"
- add="-l$name"
- else
- lib_linked=no
- fi
- ;;
- relink)
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$dir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$dir"
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- add_dir="$add_dir -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- add_shlibpath="$dir"
- add="-l$name"
- else
- lib_linked=no
- fi
- ;;
- *) lib_linked=no ;;
- esac
-
- if test "$lib_linked" != yes; then
- func_fatal_configuration "unsupported hardcode properties"
- fi
-
- if test -n "$add_shlibpath"; then
- case :$compile_shlibpath: in
- *":$add_shlibpath:"*) ;;
- *) compile_shlibpath="$compile_shlibpath$add_shlibpath:" ;;
- esac
- fi
- if test "$linkmode" = prog; then
- test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
- test -n "$add" && compile_deplibs="$add $compile_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- if test "$hardcode_direct" != yes &&
- test "$hardcode_minus_L" != yes &&
- test "$hardcode_shlibpath_var" = yes; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
- esac
- fi
- fi
- fi
-
- if test "$linkmode" = prog || test "$mode" = relink; then
- add_shlibpath=
- add_dir=
- add=
- # Finalize command for both is simple: just hardcode it.
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$libdir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$libdir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
- esac
- add="-l$name"
- elif test "$hardcode_automatic" = yes; then
- if test -n "$inst_prefix_dir" &&
- test -f "$inst_prefix_dir$libdir/$linklib" ; then
- add="$inst_prefix_dir$libdir/$linklib"
- else
- add="$libdir/$linklib"
- fi
- else
- # We cannot seem to hardcode it, guess we'll fake it.
- add_dir="-L$libdir"
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- add_dir="$add_dir -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add="-l$name"
- fi
-
- if test "$linkmode" = prog; then
- test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
- test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- fi
- fi
- elif test "$linkmode" = prog; then
- # Here we assume that one of hardcode_direct or hardcode_minus_L
- # is not unsupported. This is valid on all known static and
- # shared platforms.
- if test "$hardcode_direct" != unsupported; then
- test -n "$old_library" && linklib="$old_library"
- compile_deplibs="$dir/$linklib $compile_deplibs"
- finalize_deplibs="$dir/$linklib $finalize_deplibs"
- else
- compile_deplibs="-l$name -L$dir $compile_deplibs"
- finalize_deplibs="-l$name -L$dir $finalize_deplibs"
- fi
- elif test "$build_libtool_libs" = yes; then
- # Not a shared library
- if test "$deplibs_check_method" != pass_all; then
- # We're trying link a shared library against a static one
- # but the system doesn't support it.
-
- # Just print a warning and add the library to dependency_libs so
- # that the program can be linked against the static library.
- $ECHO
- $ECHO "*** Warning: This system can not link to static lib archive $lib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have."
- if test "$module" = yes; then
- $ECHO "*** But as you try to build a module library, libtool will still create "
- $ECHO "*** a static module, that should work as long as the dlopening application"
- $ECHO "*** is linked with the -dlopen flag to resolve symbols at runtime."
- if test -z "$global_symbol_pipe"; then
- $ECHO
- $ECHO "*** However, this would only work if libtool was able to extract symbol"
- $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
- $ECHO "*** not find such a program. So, this module is probably useless."
- $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
- fi
- if test "$build_old_libs" = no; then
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- else
- deplibs="$dir/$old_library $deplibs"
- link_static=yes
- fi
- fi # link shared/static library?
-
- if test "$linkmode" = lib; then
- if test -n "$dependency_libs" &&
- { test "$hardcode_into_libs" != yes ||
- test "$build_old_libs" = yes ||
- test "$link_static" = yes; }; then
- # Extract -R from dependency_libs
- temp_deplibs=
- for libdir in $dependency_libs; do
- case $libdir in
- -R*) func_stripname '-R' '' "$libdir"
- temp_xrpath=$func_stripname_result
- case " $xrpath " in
- *" $temp_xrpath "*) ;;
- *) xrpath="$xrpath $temp_xrpath";;
- esac;;
- *) temp_deplibs="$temp_deplibs $libdir";;
- esac
- done
- dependency_libs="$temp_deplibs"
- fi
-
- newlib_search_path="$newlib_search_path $absdir"
- # Link against this library
- test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
- # ... and its dependency_libs
- tmp_libs=
- for deplib in $dependency_libs; do
- newdependency_libs="$deplib $newdependency_libs"
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done
-
- if test "$link_all_deplibs" != no; then
- # Add the search paths of all dependency libraries
- for deplib in $dependency_libs; do
- path=
- case $deplib in
- -L*) path="$deplib" ;;
- *.la)
- func_dirname "$deplib" "" "."
- dir="$func_dirname_result"
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
- *)
- absdir=`cd "$dir" && pwd`
- if test -z "$absdir"; then
- func_warning "cannot determine absolute directory name of \`$dir'"
- absdir="$dir"
- fi
- ;;
- esac
- if $GREP "^installed=no" $deplib > /dev/null; then
- case $host in
- *-*-darwin*)
- depdepl=
- eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
- if test -n "$deplibrary_names" ; then
- for tmp in $deplibrary_names ; do
- depdepl=$tmp
- done
- if test -f "$absdir/$objdir/$depdepl" ; then
- depdepl="$absdir/$objdir/$depdepl"
- darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- if test -z "$darwin_install_name"; then
- darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- fi
- compiler_flags="$compiler_flags ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
- linker_flags="$linker_flags -dylib_file ${darwin_install_name}:${depdepl}"
- path=
- fi
- fi
- ;;
- *)
- path="-L$absdir/$objdir"
- ;;
- esac
- else
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
- test "$absdir" != "$libdir" && \
- func_warning "\`$deplib' seems to be moved"
-
- path="-L$absdir"
- fi
- ;;
- esac
- case " $deplibs " in
- *" $path "*) ;;
- *) deplibs="$path $deplibs" ;;
- esac
- done
- fi # link_all_deplibs != no
- fi # linkmode = lib
- done # for deplib in $libs
- if test "$pass" = link; then
- if test "$linkmode" = "prog"; then
- compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
- finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
- else
- compiler_flags="$compiler_flags "`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- fi
- fi
- dependency_libs="$newdependency_libs"
- if test "$pass" = dlpreopen; then
- # Link the dlpreopened libraries before other libraries
- for deplib in $save_deplibs; do
- deplibs="$deplib $deplibs"
- done
- fi
- if test "$pass" != dlopen; then
- if test "$pass" != conv; then
- # Make sure lib_search_path contains only unique directories.
- lib_search_path=
- for dir in $newlib_search_path; do
- case "$lib_search_path " in
- *" $dir "*) ;;
- *) lib_search_path="$lib_search_path $dir" ;;
- esac
- done
- newlib_search_path=
- fi
-
- if test "$linkmode,$pass" != "prog,link"; then
- vars="deplibs"
- else
- vars="compile_deplibs finalize_deplibs"
- fi
- for var in $vars dependency_libs; do
- # Add libraries to $var in reverse order
- eval tmp_libs=\"\$$var\"
- new_libs=
- for deplib in $tmp_libs; do
- # FIXME: Pedantically, this is the right thing to do, so
- # that some nasty dependency loop isn't accidentally
- # broken:
- #new_libs="$deplib $new_libs"
- # Pragmatically, this seems to cause very few problems in
- # practice:
- case $deplib in
- -L*) new_libs="$deplib $new_libs" ;;
- -R*) ;;
- *)
- # And here is the reason: when a library appears more
- # than once as an explicit dependence of a library, or
- # is implicitly linked in more than once by the
- # compiler, it is considered special, and multiple
- # occurrences thereof are not removed. Compare this
- # with having the same library being listed as a
- # dependency of multiple other libraries: in this case,
- # we know (pedantically, we assume) the library does not
- # need to be listed more than once, so we keep only the
- # last copy. This is not always right, but it is rare
- # enough that we require users that really mean to play
- # such unportable linking tricks to link the library
- # using -Wl,-lname, so that libtool does not consider it
- # for duplicate removal.
- case " $specialdeplibs " in
- *" $deplib "*) new_libs="$deplib $new_libs" ;;
- *)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$deplib $new_libs" ;;
- esac
- ;;
- esac
- ;;
- esac
- done
- tmp_libs=
- for deplib in $new_libs; do
- case $deplib in
- -L*)
- case " $tmp_libs " in
- *" $deplib "*) ;;
- *) tmp_libs="$tmp_libs $deplib" ;;
- esac
- ;;
- *) tmp_libs="$tmp_libs $deplib" ;;
- esac
- done
- eval $var=\"$tmp_libs\"
- done # for var
- fi
- # Last step: remove runtime libs from dependency_libs
- # (they stay in deplibs)
- tmp_libs=
- for i in $dependency_libs ; do
- case " $predeps $postdeps $compiler_lib_search_path " in
- *" $i "*)
- i=""
- ;;
- esac
- if test -n "$i" ; then
- tmp_libs="$tmp_libs $i"
- fi
- done
- dependency_libs=$tmp_libs
- done # for pass
- if test "$linkmode" = prog; then
- dlfiles="$newdlfiles"
- fi
- if test "$linkmode" = prog || test "$linkmode" = lib; then
- dlprefiles="$newdlprefiles"
- fi
-
- case $linkmode in
- oldlib)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for archives"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for archives" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for archives"
-
- test -n "$xrpath" && \
- func_warning "\`-R' is ignored for archives"
-
- test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for archives"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for archives"
-
- test -n "$export_symbols$export_symbols_regex" && \
- func_warning "\`-export-symbols' is ignored for archives"
-
- # Now set the variables for building old libraries.
- build_libtool_libs=no
- oldlibs="$output"
- objs="$objs$old_deplibs"
- ;;
-
- lib)
- # Make sure we only generate libraries of the form `libNAME.la'.
- case $outputname in
- lib*)
- func_stripname 'lib' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- ;;
- *)
- test "$module" = no && \
- func_fatal_help "libtool library \`$output' must begin with \`lib'"
-
- if test "$need_lib_prefix" != no; then
- # Add the "lib" prefix for modules if required
- func_stripname '' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- else
- func_stripname '' '.la' "$outputname"
- libname=$func_stripname_result
- fi
- ;;
- esac
-
- if test -n "$objs"; then
- if test "$deplibs_check_method" != pass_all; then
- func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
- else
- $ECHO
- $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
- $ECHO "*** objects $objs is not portable!"
- libobjs="$libobjs $objs"
- fi
- fi
-
- test "$dlself" != no && \
- func_warning "\`-dlopen self' is ignored for libtool libraries"
-
- set dummy $rpath
- shift
- test "$#" -gt 1 && \
- func_warning "ignoring multiple \`-rpath's for a libtool library"
-
- install_libdir="$1"
-
- oldlibs=
- if test -z "$rpath"; then
- if test "$build_libtool_libs" = yes; then
- # Building a libtool convenience library.
- # Some compilers have problems with a `.al' extension so
- # convenience libraries should have the same extension an
- # archive normally would.
- oldlibs="$output_objdir/$libname.$libext $oldlibs"
- build_libtool_libs=convenience
- build_old_libs=yes
- fi
-
- test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for convenience libraries"
- else
-
- # Parse the version information argument.
- save_ifs="$IFS"; IFS=':'
- set dummy $vinfo 0 0 0
- shift
- IFS="$save_ifs"
-
- test -n "$7" && \
- func_fatal_help "too many parameters to \`-version-info'"
-
- # convert absolute version numbers to libtool ages
- # this retains compatibility with .la files and attempts
- # to make the code below a bit more comprehensible
-
- case $vinfo_number in
- yes)
- number_major="$1"
- number_minor="$2"
- number_revision="$3"
- #
- # There are really only two kinds -- those that
- # use the current revision as the major version
- # and those that subtract age and use age as
- # a minor version. But, then there is irix
- # which has an extra 1 added just for fun
- #
- case $version_type in
- darwin|linux|osf|windows|none)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age="$number_minor"
- revision="$number_revision"
- ;;
- freebsd-aout|freebsd-elf|sunos)
- current="$number_major"
- revision="$number_minor"
- age="0"
- ;;
- irix|nonstopux)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age="$number_minor"
- revision="$number_minor"
- lt_irix_increment=no
- ;;
- *)
- func_fatal_configuration "$modename: unknown library version type \`$version_type'"
- ;;
- esac
- ;;
- no)
- current="$1"
- revision="$2"
- age="$3"
- ;;
- esac
-
- # Check that each of the things are valid numbers.
- case $current in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "CURRENT \`$current' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- case $revision in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "REVISION \`$revision' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- case $age in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "AGE \`$age' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- if test "$age" -gt "$current"; then
- func_error "AGE \`$age' is greater than the current interface number \`$current'"
- func_fatal_error "\`$vinfo' is not valid version information"
- fi
-
- # Calculate the version variables.
- major=
- versuffix=
- verstring=
- case $version_type in
- none) ;;
-
- darwin)
- # Like Linux, but with the current version available in
- # verstring for coding it into the library header
- func_arith $current - $age
- major=.$func_arith_result
- versuffix="$major.$age.$revision"
- # Darwin ld doesn't like 0 for these options...
- func_arith $current + 1
- minor_current=$func_arith_result
- xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- ;;
-
- freebsd-aout)
- major=".$current"
- versuffix=".$current.$revision";
- ;;
-
- freebsd-elf)
- major=".$current"
- versuffix=".$current"
- ;;
-
- irix | nonstopux)
- if test "X$lt_irix_increment" = "Xno"; then
- func_arith $current - $age
- else
- func_arith $current - $age + 1
- fi
- major=$func_arith_result
-
- case $version_type in
- nonstopux) verstring_prefix=nonstopux ;;
- *) verstring_prefix=sgi ;;
- esac
- verstring="$verstring_prefix$major.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test "$loop" -ne 0; do
- func_arith $revision - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring="$verstring_prefix$major.$iface:$verstring"
- done
-
- # Before this point, $major must not contain `.'.
- major=.$major
- versuffix="$major.$revision"
- ;;
-
- linux)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix="$major.$age.$revision"
- ;;
-
- osf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=".$current.$age.$revision"
- verstring="$current.$age.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$age
- while test "$loop" -ne 0; do
- func_arith $current - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring="$verstring:${iface}.0"
- done
-
- # Make executables depend on our current version.
- verstring="$verstring:${current}.0"
- ;;
-
- qnx)
- major=".$current"
- versuffix=".$current"
- ;;
-
- sunos)
- major=".$current"
- versuffix=".$current.$revision"
- ;;
-
- windows)
- # Use '-' rather than '.', since we only want one
- # extension on DOS 8.3 filesystems.
- func_arith $current - $age
- major=$func_arith_result
- versuffix="-$major"
- ;;
-
- *)
- func_fatal_configuration "unknown library version type \`$version_type'"
- ;;
- esac
-
- # Clear the version info if we defaulted, and they specified a release.
- if test -z "$vinfo" && test -n "$release"; then
- major=
- case $version_type in
- darwin)
- # we can't check for "0.0" in archive_cmds due to quoting
- # problems, so we reset it completely
- verstring=
- ;;
- *)
- verstring="0.0"
- ;;
- esac
- if test "$need_version" = no; then
- versuffix=
- else
- versuffix=".0.0"
- fi
- fi
-
- # Remove version info from name if versioning should be avoided
- if test "$avoid_version" = yes && test "$need_version" = no; then
- major=
- versuffix=
- verstring=""
- fi
-
- # Check to see if the archive will have undefined symbols.
- if test "$allow_undefined" = yes; then
- if test "$allow_undefined_flag" = unsupported; then
- func_warning "undefined symbols not allowed in $host shared libraries"
- build_libtool_libs=no
- build_old_libs=yes
- fi
- else
- # Don't allow undefined symbols.
- allow_undefined_flag="$no_undefined_flag"
- fi
-
- fi
-
- func_generate_dlsyms "$libname" "$libname" "yes"
- libobjs="$libobjs $symfileobj"
- test "X$libobjs" = "X " && libobjs=
-
- if test "$mode" != relink; then
- # Remove our outputs, but don't remove object files since they
- # may have been created when compiling PIC objects.
- removelist=
- tempremovelist=`$ECHO "$output_objdir/*"`
- for p in $tempremovelist; do
- case $p in
- *.$objext | *.gcno)
- ;;
- $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
- if test "X$precious_files_regex" != "X"; then
- if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
- then
- continue
- fi
- fi
- removelist="$removelist $p"
- ;;
- *) ;;
- esac
- done
- test -n "$removelist" && \
- func_show_eval "${RM}r \$removelist"
- fi
-
- # Now set the variables for building old libraries.
- if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
- oldlibs="$oldlibs $output_objdir/$libname.$libext"
-
- # Transform .lo files to .o files.
- oldobjs="$objs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e "$lo2o" | $NL2SP`
- fi
-
- # Eliminate all temporary directories.
- #for path in $notinst_path; do
- # lib_search_path=`$ECHO "X$lib_search_path " | $Xsed -e "s% $path % %g"`
- # deplibs=`$ECHO "X$deplibs " | $Xsed -e "s% -L$path % %g"`
- # dependency_libs=`$ECHO "X$dependency_libs " | $Xsed -e "s% -L$path % %g"`
- #done
-
- if test -n "$xrpath"; then
- # If the user specified any rpath flags, then add them.
- temp_xrpath=
- for libdir in $xrpath; do
- temp_xrpath="$temp_xrpath -R$libdir"
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir" ;;
- esac
- done
- if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
- dependency_libs="$temp_xrpath $dependency_libs"
- fi
- fi
-
- # Make sure dlfiles contains only unique files that won't be dlpreopened
- old_dlfiles="$dlfiles"
- dlfiles=
- for lib in $old_dlfiles; do
- case " $dlprefiles $dlfiles " in
- *" $lib "*) ;;
- *) dlfiles="$dlfiles $lib" ;;
- esac
- done
-
- # Make sure dlprefiles contains only unique files
- old_dlprefiles="$dlprefiles"
- dlprefiles=
- for lib in $old_dlprefiles; do
- case "$dlprefiles " in
- *" $lib "*) ;;
- *) dlprefiles="$dlprefiles $lib" ;;
- esac
- done
-
- if test "$build_libtool_libs" = yes; then
- if test -n "$rpath"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc*)
- # these systems don't actually have a c library (as such)!
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C library is in the System framework
- deplibs="$deplibs System.ltframework"
- ;;
- *-*-netbsd*)
- # Don't link with libc until the a.out ld.so is fixed.
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- ;;
- *)
- # Add libc to deplibs on all other systems if necessary.
- if test "$build_libtool_need_lc" = "yes"; then
- deplibs="$deplibs -lc"
- fi
- ;;
- esac
- fi
-
- # Transform deplibs into only deplibs that can be linked in shared.
- name_save=$name
- libname_save=$libname
- release_save=$release
- versuffix_save=$versuffix
- major_save=$major
- # I'm not sure if I'm treating the release correctly. I think
- # release should show up in the -l (ie -lgmp5) so we don't want to
- # add it in twice. Is that correct?
- release=""
- versuffix=""
- major=""
- newdeplibs=
- droppeddeps=no
- case $deplibs_check_method in
- pass_all)
- # Don't check for shared/static. Everything works.
- # This might be a little naive. We might want to check
- # whether the library exists or not. But this is on
- # osf3 & osf4 and I'm not really sure... Just
- # implementing what was already the behavior.
- newdeplibs=$deplibs
- ;;
- test_compile)
- # This code stresses the "libraries are programs" paradigm to its
- # limits. Maybe even breaks it. We compile a program, linking it
- # against the deplibs as a proxy for the library. Then we can check
- # whether they linked in statically or dynamically with ldd.
- $opt_dry_run || $RM conftest.c
- cat > conftest.c <<EOF
- int main() { return 0; }
-EOF
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
- ldd_output=`ldd conftest`
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $i "*)
- newdeplibs="$newdeplibs $i"
- i=""
- ;;
- esac
- fi
- if test -n "$i" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
- newdeplibs="$newdeplibs $i"
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which I believe you do not have"
- $ECHO "*** because a test_compile did reveal that the linker did not use it for"
- $ECHO "*** its dynamic dependency list that programs get resolved with at runtime."
- fi
- fi
- ;;
- *)
- newdeplibs="$newdeplibs $i"
- ;;
- esac
- done
- else
- # Error occurred in the first compile. Let's try to salvage
- # the situation: Compile a separate program for each library.
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
- ldd_output=`ldd conftest`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $i "*)
- newdeplibs="$newdeplibs $i"
- i=""
- ;;
- esac
- fi
- if test -n "$i" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
- newdeplibs="$newdeplibs $i"
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because a test_compile did reveal that the linker did not use this one"
- $ECHO "*** as a dynamic dependency that programs can get resolved with at runtime."
- fi
- fi
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning! Library $i is needed by this library but I was not able to"
- $ECHO "*** make it link in! You will probably need to install it or some"
- $ECHO "*** library that it depends on before this library will be fully"
- $ECHO "*** functional. Installing it before continuing would be even better."
- fi
- ;;
- *)
- newdeplibs="$newdeplibs $i"
- ;;
- esac
- done
- fi
- ;;
- file_magic*)
- set dummy $deplibs_check_method; shift
- file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- ;;
- esac
- fi
- if test -n "$a_deplib" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- # Follow soft links.
- if ls -lLd "$potent_lib" 2>/dev/null |
- $GREP " -> " >/dev/null; then
- continue
- fi
- # The statement above tries to avoid entering an
- # endless loop below, in case of cyclic links.
- # We might still enter an endless loop, since a link
- # loop can be closed while we follow links,
- # but so what?
- potlib="$potent_lib"
- while test -h "$potlib" 2>/dev/null; do
- potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
- case $potliblink in
- [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
- *) potlib=`$ECHO "X$potlib" | $Xsed -e 's,[^/]*$,,'`"$potliblink";;
- esac
- done
- if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
- $SED -e 10q |
- $EGREP "$file_magic_regex" > /dev/null; then
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib" ; then
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
- $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a file magic. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- newdeplibs="$newdeplibs $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- ;;
- esac
- fi
- if test -n "$a_deplib" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- potlib="$potent_lib" # see symlink-check above in file_magic test
- if eval "\$ECHO \"X$potent_lib\"" 2>/dev/null | $Xsed -e 10q | \
- $EGREP "$match_pattern_regex" > /dev/null; then
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib" ; then
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
- $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a regex pattern. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- newdeplibs="$newdeplibs $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- none | unknown | *)
- newdeplibs=""
- tmp_deplibs=`$ECHO "X $deplibs" | $Xsed \
- -e 's/ -lc$//' -e 's/ -[LR][^ ]*//g'`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- for i in $predeps $postdeps ; do
- # can't use Xsed below, because $i might contain '/'
- tmp_deplibs=`$ECHO "X $tmp_deplibs" | $Xsed -e "s,$i,,"`
- done
- fi
- if $ECHO "X $tmp_deplibs" | $Xsed -e 's/[ ]//g' |
- $GREP . >/dev/null; then
- $ECHO
- if test "X$deplibs_check_method" = "Xnone"; then
- $ECHO "*** Warning: inter-library dependencies are not supported in this platform."
- else
- $ECHO "*** Warning: inter-library dependencies are not known to be supported."
- fi
- $ECHO "*** All declared inter-library dependencies are being dropped."
- droppeddeps=yes
- fi
- ;;
- esac
- versuffix=$versuffix_save
- major=$major_save
- release=$release_save
- libname=$libname_save
- name=$name_save
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library with the System framework
- newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- if test "$droppeddeps" = yes; then
- if test "$module" = yes; then
- $ECHO
- $ECHO "*** Warning: libtool could not satisfy all declared inter-library"
- $ECHO "*** dependencies of module $libname. Therefore, libtool will create"
- $ECHO "*** a static module, that should work as long as the dlopening"
- $ECHO "*** application is linked with the -dlopen flag."
- if test -z "$global_symbol_pipe"; then
- $ECHO
- $ECHO "*** However, this would only work if libtool was able to extract symbol"
- $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
- $ECHO "*** not find such a program. So, this module is probably useless."
- $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
- fi
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- else
- $ECHO "*** The inter-library dependencies that have been dropped here will be"
- $ECHO "*** automatically added whenever a program is linked with this library"
- $ECHO "*** or is declared to -dlopen it."
-
- if test "$allow_undefined" = no; then
- $ECHO
- $ECHO "*** Since this library must not contain undefined symbols,"
- $ECHO "*** because either the platform does not support them or"
- $ECHO "*** it was explicitly requested with -no-undefined,"
- $ECHO "*** libtool will only create a static version of it."
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- fi
- fi
- # Done checking deplibs!
- deplibs=$newdeplibs
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- case $host in
- *-*-darwin*)
- newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- new_inherited_linker_flags=`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- deplibs=`$ECHO "X $deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $deplibs " in
- *" -L$path/$objdir "*)
- new_libs="$new_libs -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- done
- deplibs="$new_libs"
-
- # All the library-specific variables (install_libdir is set above).
- library_names=
- old_library=
- dlname=
-
- # Test again, we may have decided not to build it any more
- if test "$build_libtool_libs" = yes; then
- if test "$hardcode_into_libs" = yes; then
- # Hardcode the library paths
- hardcode_libdirs=
- dep_rpath=
- rpath="$finalize_rpath"
- test "$mode" != relink && rpath="$compile_rpath$rpath"
- for libdir in $rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- dep_rpath="$dep_rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) perm_rpath="$perm_rpath $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- if test -n "$hardcode_libdir_flag_spec_ld"; then
- eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
- else
- eval dep_rpath=\"$hardcode_libdir_flag_spec\"
- fi
- fi
- if test -n "$runpath_var" && test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- rpath="$rpath$dir:"
- done
- eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
- fi
- test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
- fi
-
- shlibpath="$finalize_shlibpath"
- test "$mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
- if test -n "$shlibpath"; then
- eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
- fi
-
- # Get the real and link names of the library.
- eval shared_ext=\"$shrext_cmds\"
- eval library_names=\"$library_names_spec\"
- set dummy $library_names
- shift
- realname="$1"
- shift
-
- if test -n "$soname_spec"; then
- eval soname=\"$soname_spec\"
- else
- soname="$realname"
- fi
- if test -z "$dlname"; then
- dlname=$soname
- fi
-
- lib="$output_objdir/$realname"
- linknames=
- for link
- do
- linknames="$linknames $link"
- done
-
- # Use standard objects if they are pic
- test -z "$pic_flag" && libobjs=`$ECHO "X$libobjs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- test "X$libobjs" = "X " && libobjs=
-
- delfiles=
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
- export_symbols="$output_objdir/$libname.uexp"
- delfiles="$delfiles $export_symbols"
- fi
-
- orig_export_symbols=
- case $host_os in
- cygwin* | mingw* | cegcc*)
- if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
- # exporting using user supplied symfile
- if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
- # and it's NOT already a .def file. Must figure out
- # which of the given symbols are data symbols and tag
- # them as such. So, trigger use of export_symbols_cmds.
- # export_symbols gets reassigned inside the "prepare
- # the list of exported symbols" if statement, so the
- # include_expsyms logic still works.
- orig_export_symbols="$export_symbols"
- export_symbols=
- always_export_symbols=yes
- fi
- fi
- ;;
- esac
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
- $opt_dry_run || $RM $export_symbols
- cmds=$export_symbols_cmds
- save_ifs="$IFS"; IFS='~'
- for cmd in $cmds; do
- IFS="$save_ifs"
- eval cmd=\"$cmd\"
- func_len " $cmd"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- func_show_eval "$cmd" 'exit $?'
- skipped_export=false
- else
- # The command line is too long to execute in one step.
- func_verbose "using reloadable object file for export list..."
- skipped_export=:
- # Break out early, otherwise skipped_export may be
- # set to false by a later but shorter cmd.
- break
- fi
- done
- IFS="$save_ifs"
- if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
- fi
-
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
- $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
-
- tmp_deplibs=
- for test_deplib in $deplibs; do
- case " $convenience " in
- *" $test_deplib "*) ;;
- *)
- tmp_deplibs="$tmp_deplibs $test_deplib"
- ;;
- esac
- done
- deplibs="$tmp_deplibs"
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec" &&
- test "$compiler_needs_object" = yes &&
- test -z "$libobjs"; then
- # extract the archives, so we have objects to list.
- # TODO: could optimize this to just extract one archive.
- whole_archive_flag_spec=
- fi
- if test -n "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- else
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $convenience
- libobjs="$libobjs $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
- fi
-
- if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
- eval flag=\"$thread_safe_flag_spec\"
- linker_flags="$linker_flags $flag"
- fi
-
- # Make a backup of the uninstalled library when relinking
- if test "$mode" = relink; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
- fi
-
- # Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- eval test_cmds=\"$module_expsym_cmds\"
- cmds=$module_expsym_cmds
- else
- eval test_cmds=\"$module_cmds\"
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- eval test_cmds=\"$archive_expsym_cmds\"
- cmds=$archive_expsym_cmds
- else
- eval test_cmds=\"$archive_cmds\"
- cmds=$archive_cmds
- fi
- fi
-
- if test "X$skipped_export" != "X:" &&
- func_len " $test_cmds" &&
- len=$func_len_result &&
- test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- :
- else
- # The command line is too long to link in one step, link piecewise
- # or, if using GNU ld and skipped_export is not :, use a linker
- # script.
-
- # Save the value of $output and $libobjs because we want to
- # use them later. If we have whole_archive_flag_spec, we
- # want to use save_libobjs as it was before
- # whole_archive_flag_spec was expanded, because we can't
- # assume the linker understands whole_archive_flag_spec.
- # This may have to be revisited, in case too many
- # convenience libraries get linked in and end up exceeding
- # the spec.
- if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- fi
- save_output=$output
- output_la=`$ECHO "X$output" | $Xsed -e "$basename"`
-
- # Clear the reloadable object creation command queue and
- # initialize k to one.
- test_cmds=
- concat_cmds=
- objlist=
- last_robj=
- k=1
-
- if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
- output=${output_objdir}/${output_la}.lnkscript
- func_verbose "creating GNU ld script: $output"
- $ECHO 'INPUT (' > $output
- for obj in $save_libobjs
- do
- $ECHO "$obj" >> $output
- done
- $ECHO ')' >> $output
- delfiles="$delfiles $output"
- elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
- output=${output_objdir}/${output_la}.lnk
- func_verbose "creating linker input file list: $output"
- : > $output
- set x $save_libobjs
- shift
- firstobj=
- if test "$compiler_needs_object" = yes; then
- firstobj="$1 "
- shift
- fi
- for obj
- do
- $ECHO "$obj" >> $output
- done
- delfiles="$delfiles $output"
- output=$firstobj\"$file_list_spec$output\"
- else
- if test -n "$save_libobjs"; then
- func_verbose "creating reloadable object files..."
- output=$output_objdir/$output_la-${k}.$objext
- eval test_cmds=\"$reload_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
-
- # Loop over the list of objects to be linked.
- for obj in $save_libobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- if test "X$objlist" = X ||
- test "$len" -lt "$max_cmd_len"; then
- func_append objlist " $obj"
- else
- # The command $test_cmds is almost too long, add a
- # command to the queue.
- if test "$k" -eq 1 ; then
- # The first file doesn't have a previous command to add.
- eval concat_cmds=\"$reload_cmds $objlist $last_robj\"
- else
- # All subsequent reloadable object files will link in
- # the last one created.
- eval concat_cmds=\"\$concat_cmds~$reload_cmds $objlist $last_robj~\$RM $last_robj\"
- fi
- last_robj=$output_objdir/$output_la-${k}.$objext
- func_arith $k + 1
- k=$func_arith_result
- output=$output_objdir/$output_la-${k}.$objext
- objlist=$obj
- func_len " $last_robj"
- func_arith $len0 + $func_len_result
- len=$func_arith_result
- fi
- done
- # Handle the remaining objects by creating one last
- # reloadable object file. All subsequent reloadable object
- # files will link in the last one created.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$reload_cmds $objlist $last_robj\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
- fi
- delfiles="$delfiles $output"
-
- else
- output=
- fi
-
- if ${skipped_export-false}; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
- $opt_dry_run || $RM $export_symbols
- libobjs=$output
- # Append the command to create the export file.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- fi
-
- test -n "$save_libobjs" &&
- func_verbose "creating a temporary reloadable object file: $output"
-
- # Loop through the commands generated above and execute them.
- save_ifs="$IFS"; IFS='~'
- for cmd in $concat_cmds; do
- IFS="$save_ifs"
- $opt_silent || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS="$save_ifs"
-
- if test -n "$export_symbols_regex" && ${skipped_export-false}; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
-
- if ${skipped_export-false}; then
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
- $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
- fi
-
- libobjs=$output
- # Restore the value of output.
- output=$save_output
-
- if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- fi
- # Expand the library linking commands again to reset the
- # value of $libobjs for piecewise linking.
-
- # Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- cmds=$module_expsym_cmds
- else
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- cmds=$archive_expsym_cmds
- else
- cmds=$archive_cmds
- fi
- fi
- fi
-
- if test -n "$delfiles"; then
- # Append the command to remove temporary files to $cmds.
- eval cmds=\"\$cmds~\$RM $delfiles\"
- fi
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $dlprefiles
- libobjs="$libobjs $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
-
- save_ifs="$IFS"; IFS='~'
- for cmd in $cmds; do
- IFS="$save_ifs"
- eval cmd=\"$cmd\"
- $opt_silent || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS="$save_ifs"
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
-
- if test -n "$convenience"; then
- if test -z "$whole_archive_flag_spec"; then
- func_show_eval '${RM}r "$gentop"'
- fi
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- # Create links to the real library.
- for linkname in $linknames; do
- if test "$realname" != "$linkname"; then
- func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
- fi
- done
-
- # If -module or -export-dynamic was specified, set the dlname.
- if test "$module" = yes || test "$export_dynamic" = yes; then
- # On all known operating systems, these are identical.
- dlname="$soname"
- fi
- fi
- ;;
-
- obj)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for objects"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for objects" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for objects"
-
- test -n "$xrpath" && \
- func_warning "\`-R' is ignored for objects"
-
- test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for objects"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for objects"
-
- case $output in
- *.lo)
- test -n "$objs$old_deplibs" && \
- func_fatal_error "cannot build library object \`$output' from non-libtool objects"
-
- libobj=$output
- func_lo2o "$libobj"
- obj=$func_lo2o_result
- ;;
- *)
- libobj=
- obj="$output"
- ;;
- esac
-
- # Delete the old objects.
- $opt_dry_run || $RM $obj $libobj
-
- # Objects from convenience libraries. This assumes
- # single-version convenience libraries. Whenever we create
- # different ones for PIC/non-PIC, this we'll have to duplicate
- # the extraction.
- reload_conv_objs=
- gentop=
- # reload_cmds runs $LD directly, so let us get rid of
- # -Wl from whole_archive_flag_spec and hope we can get by with
- # turning comma into space..
- wl=
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec"; then
- eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
- reload_conv_objs=$reload_objs\ `$ECHO "X$tmp_whole_archive_flags" | $Xsed -e 's|,| |g'`
- else
- gentop="$output_objdir/${obj}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $convenience
- reload_conv_objs="$reload_objs $func_extract_archives_result"
- fi
- fi
-
- # Create the old-style object.
- reload_objs="$objs$old_deplibs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}$'/d' -e '/\.lib$/d' -e "$lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
-
- output="$obj"
- func_execute_cmds "$reload_cmds" 'exit $?'
-
- # Exit if we aren't doing a library object file.
- if test -z "$libobj"; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- if test "$build_libtool_libs" != yes; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- # Create an invalid libtool object if no PIC, so that we don't
- # accidentally link it into a program.
- # $show "echo timestamp > $libobj"
- # $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
- exit $EXIT_SUCCESS
- fi
-
- if test -n "$pic_flag" || test "$pic_mode" != default; then
- # Only do commands if we really have different PIC objects.
- reload_objs="$libobjs $reload_conv_objs"
- output="$libobj"
- func_execute_cmds "$reload_cmds" 'exit $?'
- fi
-
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- ;;
-
- prog)
- case $host in
- *cygwin*) func_stripname '' '.exe' "$output"
- output=$func_stripname_result.exe;;
- esac
- test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for programs"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for programs"
-
- test "$preload" = yes \
- && test "$dlopen_support" = unknown \
- && test "$dlopen_self" = unknown \
- && test "$dlopen_self_static" = unknown && \
- func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library is the System framework
- compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- case $host in
- *-*-darwin*)
- # Don't allow lazy linking, it breaks C++ global constructors
- # But is supposedly fixed on 10.4 or later (yay!).
- if test "$tagname" = CXX ; then
- case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
- 10.[0123])
- compile_command="$compile_command ${wl}-bind_at_load"
- finalize_command="$finalize_command ${wl}-bind_at_load"
- ;;
- esac
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $compile_deplibs " in
- *" -L$path/$objdir "*)
- new_libs="$new_libs -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $compile_deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- done
- compile_deplibs="$new_libs"
-
-
- compile_command="$compile_command $compile_deplibs"
- finalize_command="$finalize_command $finalize_deplibs"
-
- if test -n "$rpath$xrpath"; then
- # If the user specified any rpath flags, then add them.
- for libdir in $rpath $xrpath; do
- # This is the magic to use -rpath.
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir" ;;
- esac
- done
- fi
-
- # Now hardcode the library paths
- rpath=
- hardcode_libdirs=
- for libdir in $compile_rpath $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- rpath="$rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) perm_rpath="$perm_rpath $libdir" ;;
- esac
- fi
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$libdir:"*) ;;
- ::) dllsearchpath=$libdir;;
- *) dllsearchpath="$dllsearchpath:$libdir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) dllsearchpath="$dllsearchpath:$testbindir";;
- esac
- ;;
- esac
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- compile_rpath="$rpath"
-
- rpath=
- hardcode_libdirs=
- for libdir in $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- rpath="$rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$finalize_perm_rpath " in
- *" $libdir "*) ;;
- *) finalize_perm_rpath="$finalize_perm_rpath $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- finalize_rpath="$rpath"
-
- if test -n "$libobjs" && test "$build_old_libs" = yes; then
- # Transform all the library objects into standard objects.
- compile_command=`$ECHO "X$compile_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- finalize_command=`$ECHO "X$finalize_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- fi
-
- func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
-
- # template prelinking step
- if test -n "$prelink_cmds"; then
- func_execute_cmds "$prelink_cmds" 'exit $?'
- fi
-
- wrappers_required=yes
- case $host in
- *cygwin* | *mingw* )
- if test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
- ;;
- *cegcc)
- # Disable wrappers for cegcc, we are cross compiling anyway.
- wrappers_required=no
- ;;
- *)
- if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
- ;;
- esac
- if test "$wrappers_required" = no; then
- # Replace the output file specification.
- compile_command=`$ECHO "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
- link_command="$compile_command$compile_rpath"
-
- # We have no uninstalled library dependencies, so finalize right now.
- exit_status=0
- func_show_eval "$link_command" 'exit_status=$?'
-
- # Delete the generated files.
- if test -f "$output_objdir/${outputname}S.${objext}"; then
- func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
- fi
-
- exit $exit_status
- fi
-
- if test -n "$compile_shlibpath$finalize_shlibpath"; then
- compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
- fi
- if test -n "$finalize_shlibpath"; then
- finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
- fi
-
- compile_var=
- finalize_var=
- if test -n "$runpath_var"; then
- if test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- rpath="$rpath$dir:"
- done
- compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- if test -n "$finalize_perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $finalize_perm_rpath; do
- rpath="$rpath$dir:"
- done
- finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- fi
-
- if test "$no_install" = yes; then
- # We don't need to create a wrapper script.
- link_command="$compile_var$compile_command$compile_rpath"
- # Replace the output file specification.
- link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
- # Delete the old output file.
- $opt_dry_run || $RM $output
- # Link the executable and exit
- func_show_eval "$link_command" 'exit $?'
- exit $EXIT_SUCCESS
- fi
-
- if test "$hardcode_action" = relink; then
- # Fast installation is not supported
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
-
- func_warning "this platform does not like uninstalled shared libraries"
- func_warning "\`$output' will be relinked during installation"
- else
- if test "$fast_install" != no; then
- link_command="$finalize_var$compile_command$finalize_rpath"
- if test "$fast_install" = yes; then
- relink_command=`$ECHO "X$compile_var$compile_command$compile_rpath" | $Xsed -e 's%@OUTPUT@%\$progdir/\$file%g'`
- else
- # fast_install is set to needless
- relink_command=
- fi
- else
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
- fi
- fi
-
- # Replace the output file specification.
- link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
-
- # Delete the old output files.
- $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
-
- func_show_eval "$link_command" 'exit $?'
-
- # Now create the wrapper script.
- func_verbose "creating $output"
-
- # Quote the relink command for shipping.
- if test -n "$relink_command"; then
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- relink_command="(cd `pwd`; $relink_command)"
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
- fi
-
- # Quote $ECHO for shipping.
- if test "X$ECHO" = "X$SHELL $progpath --fallback-echo"; then
- case $progpath in
- [\\/]* | [A-Za-z]:[\\/]*) qecho="$SHELL $progpath --fallback-echo";;
- *) qecho="$SHELL `pwd`/$progpath --fallback-echo";;
- esac
- qecho=`$ECHO "X$qecho" | $Xsed -e "$sed_quote_subst"`
- else
- qecho=`$ECHO "X$ECHO" | $Xsed -e "$sed_quote_subst"`
- fi
-
- # Only actually do things if not in dry run mode.
- $opt_dry_run || {
- # win32 will think the script is a binary if it has
- # a .exe suffix, so we strip it off here.
- case $output in
- *.exe) func_stripname '' '.exe' "$output"
- output=$func_stripname_result ;;
- esac
- # test for cygwin because mv fails w/o .exe extensions
- case $host in
- *cygwin*)
- exeext=.exe
- func_stripname '' '.exe' "$outputname"
- outputname=$func_stripname_result ;;
- *) exeext= ;;
- esac
- case $host in
- *cygwin* | *mingw* )
- func_dirname_and_basename "$output" "" "."
- output_name=$func_basename_result
- output_path=$func_dirname_result
- cwrappersource="$output_path/$objdir/lt-$output_name.c"
- cwrapper="$output_path/$output_name.exe"
- $RM $cwrappersource $cwrapper
- trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_cwrapperexe_src > $cwrappersource
-
- # The wrapper executable is built using the $host compiler,
- # because it contains $host paths and files. If cross-
- # compiling, it, like the target executable, must be
- # executed on the $host or under an emulation environment.
- $opt_dry_run || {
- $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
- $STRIP $cwrapper
- }
-
- # Now, create the wrapper script for func_source use:
- func_ltwrapper_scriptname $cwrapper
- $RM $func_ltwrapper_scriptname_result
- trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
- $opt_dry_run || {
- # note: this script will not be executed, so do not chmod.
- if test "x$build" = "x$host" ; then
- $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
- else
- func_emit_wrapper no > $func_ltwrapper_scriptname_result
- fi
- }
- ;;
- * )
- $RM $output
- trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_wrapper no > $output
- chmod +x $output
- ;;
- esac
- }
- exit $EXIT_SUCCESS
- ;;
- esac
-
- # See if we need to build an old-fashioned archive.
- for oldlib in $oldlibs; do
-
- if test "$build_libtool_libs" = convenience; then
- oldobjs="$libobjs_save $symfileobj"
- addlibs="$convenience"
- build_libtool_libs=no
- else
- if test "$build_libtool_libs" = module; then
- oldobjs="$libobjs_save"
- build_libtool_libs=no
- else
- oldobjs="$old_deplibs $non_pic_objects"
- if test "$preload" = yes && test -f "$symfileobj"; then
- oldobjs="$oldobjs $symfileobj"
- fi
- fi
- addlibs="$old_convenience"
- fi
-
- if test -n "$addlibs"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $addlibs
- oldobjs="$oldobjs $func_extract_archives_result"
- fi
-
- # Do each command in the archive commands.
- if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
- cmds=$old_archive_from_new_cmds
- else
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $dlprefiles
- oldobjs="$oldobjs $func_extract_archives_result"
- fi
-
- # POSIX demands no paths to be encoded in archives. We have
- # to avoid creating archives with duplicate basenames if we
- # might have to extract them afterwards, e.g., when creating a
- # static archive out of a convenience library, or when linking
- # the entirety of a libtool archive into another (currently
- # not supported by libtool).
- if (for obj in $oldobjs
- do
- func_basename "$obj"
- $ECHO "$func_basename_result"
- done | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- $ECHO "copying selected object files to avoid basename conflicts..."
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
- func_mkdir_p "$gentop"
- save_oldobjs=$oldobjs
- oldobjs=
- counter=1
- for obj in $save_oldobjs
- do
- func_basename "$obj"
- objbase="$func_basename_result"
- case " $oldobjs " in
- " ") oldobjs=$obj ;;
- *[\ /]"$objbase "*)
- while :; do
- # Make sure we don't pick an alternate name that also
- # overlaps.
- newobj=lt$counter-$objbase
- func_arith $counter + 1
- counter=$func_arith_result
- case " $oldobjs " in
- *[\ /]"$newobj "*) ;;
- *) if test ! -f "$gentop/$newobj"; then break; fi ;;
- esac
- done
- func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
- oldobjs="$oldobjs $gentop/$newobj"
- ;;
- *) oldobjs="$oldobjs $obj" ;;
- esac
- done
- fi
- eval cmds=\"$old_archive_cmds\"
-
- func_len " $cmds"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- cmds=$old_archive_cmds
- else
- # the command line is too long to link in one step, link in parts
- func_verbose "using piecewise archive linking..."
- save_RANLIB=$RANLIB
- RANLIB=:
- objlist=
- concat_cmds=
- save_oldobjs=$oldobjs
- oldobjs=
- # Is there a better way of finding the last object in the list?
- for obj in $save_oldobjs
- do
- last_oldobj=$obj
- done
- eval test_cmds=\"$old_archive_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
- for obj in $save_oldobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- func_append objlist " $obj"
- if test "$len" -lt "$max_cmd_len"; then
- :
- else
- # the above command should be used before it gets too long
- oldobjs=$objlist
- if test "$obj" = "$last_oldobj" ; then
- RANLIB=$save_RANLIB
- fi
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
- objlist=
- len=$len0
- fi
- done
- RANLIB=$save_RANLIB
- oldobjs=$objlist
- if test "X$oldobjs" = "X" ; then
- eval cmds=\"\$concat_cmds\"
- else
- eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
- fi
- fi
- fi
- func_execute_cmds "$cmds" 'exit $?'
- done
-
- test -n "$generated" && \
- func_show_eval "${RM}r$generated"
-
- # Now create the libtool archive.
- case $output in
- *.la)
- old_library=
- test "$build_old_libs" = yes && old_library="$libname.$libext"
- func_verbose "creating $output"
-
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
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- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- # Quote the link command for shipping.
- relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
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- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
- newdependency_libs="$newdependency_libs $libdir/$name"
- ;;
- *) newdependency_libs="$newdependency_libs $deplib" ;;
- esac
- done
- dependency_libs="$newdependency_libs"
- newdlfiles=
-
- for lib in $dlfiles; do
- case $lib in
- *.la)
- func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "\`$lib' is not a valid libtool archive"
- newdlfiles="$newdlfiles $libdir/$name"
- ;;
- *) newdlfiles="$newdlfiles $lib" ;;
- esac
- done
- dlfiles="$newdlfiles"
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- *.la)
- # Only pass preopened files to the pseudo-archive (for
- # eventual linking with the app. that links it) if we
- # didn't already link the preopened objects directly into
- # the library:
- func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "\`$lib' is not a valid libtool archive"
- newdlprefiles="$newdlprefiles $libdir/$name"
- ;;
- esac
- done
- dlprefiles="$newdlprefiles"
- else
- newdlfiles=
- for lib in $dlfiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- newdlfiles="$newdlfiles $abs"
- done
- dlfiles="$newdlfiles"
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- newdlprefiles="$newdlprefiles $abs"
- done
- dlprefiles="$newdlprefiles"
- fi
- $RM $output
- # place dlname in correct position for cygwin
- tdlname=$dlname
- case $host,$output,$installed,$module,$dlname in
- *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) tdlname=../bin/$dlname ;;
- esac
- $ECHO > $output "\
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-# Please DO NOT delete this file!
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-# The name that we can dlopen(3).
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-
-# Names of this library.
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-
-# The name of the static archive.
-old_library='$old_library'
-
-# Linker flags that can not go in dependency_libs.
-inherited_linker_flags='$new_inherited_linker_flags'
-
-# Libraries that this one depends upon.
-dependency_libs='$dependency_libs'
-
-# Names of additional weak libraries provided by this library
-weak_library_names='$weak_libs'
-
-# Version information for $libname.
-current=$current
-age=$age
-revision=$revision
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-# Is this an already installed library?
-installed=$installed
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-# Should we warn about portability when linking against -modules?
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-# Files to dlopen/dlpreopen
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-dlpreopen='$dlprefiles'
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-# Directory that this library needs to be installed in:
-libdir='$install_libdir'"
- if test "$installed" = no && test "$need_relink" = yes; then
- $ECHO >> $output "\
-relink_command=\"$relink_command\""
- fi
- done
- }
-
- # Do a symbolic link so that the libtool archive can be found in
- # LD_LIBRARY_PATH before the program is installed.
- func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
- ;;
- esac
- exit $EXIT_SUCCESS
-}
-
-{ test "$mode" = link || test "$mode" = relink; } &&
- func_mode_link ${1+"$@"}
-
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-# func_mode_uninstall arg...
-func_mode_uninstall ()
-{
- $opt_debug
- RM="$nonopt"
- files=
- rmforce=
- exit_status=0
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- # This variable tells wrapper scripts just to set variables rather
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- do
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- -f) RM="$RM $arg"; rmforce=yes ;;
- -*) RM="$RM $arg" ;;
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- test -z "$RM" && \
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- rmdirs=
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- origobjdir="$objdir"
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- func_dirname "$file" "" "."
- dir="$func_dirname_result"
- if test "X$dir" = X.; then
- objdir="$origobjdir"
- else
- objdir="$dir/$origobjdir"
- fi
- func_basename "$file"
- name="$func_basename_result"
- test "$mode" = uninstall && objdir="$dir"
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- # Remember objdir for removal later, being careful to avoid duplicates
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- case " $rmdirs " in
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- *) rmdirs="$rmdirs $objdir" ;;
- esac
- fi
-
- # Don't error if the file doesn't exist and rm -f was used.
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- test -f "$file"; then
- :
- elif test -d "$file"; then
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- continue
- fi
-
- rmfiles="$file"
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- case $name in
- *.la)
- # Possibly a libtool archive, so verify it.
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- func_source $dir/$name
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- # Delete the libtool libraries and symlinks.
- for n in $library_names; do
- rmfiles="$rmfiles $objdir/$n"
- done
- test -n "$old_library" && rmfiles="$rmfiles $objdir/$old_library"
-
- case "$mode" in
- clean)
- case " $library_names " in
- # " " in the beginning catches empty $dlname
- *" $dlname "*) ;;
- *) rmfiles="$rmfiles $objdir/$dlname" ;;
- esac
- test -n "$libdir" && rmfiles="$rmfiles $objdir/$name $objdir/${name}i"
- ;;
- uninstall)
- if test -n "$library_names"; then
- # Do each command in the postuninstall commands.
- func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
- fi
-
- if test -n "$old_library"; then
- # Do each command in the old_postuninstall commands.
- func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
- fi
- # FIXME: should reinstall the best remaining shared library.
- ;;
- esac
- fi
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- # Possibly a libtool object, so verify it.
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-
- # Read the .lo file
- func_source $dir/$name
-
- # Add PIC object to the list of files to remove.
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- rmfiles="$rmfiles $dir/$pic_object"
- fi
-
- # Add non-PIC object to the list of files to remove.
- if test -n "$non_pic_object" &&
- test "$non_pic_object" != none; then
- rmfiles="$rmfiles $dir/$non_pic_object"
- fi
- fi
- ;;
-
- *)
- if test "$mode" = clean ; then
- noexename=$name
- case $file in
- *.exe)
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- func_stripname '' '.exe' "$name"
- noexename=$func_stripname_result
- # $file with .exe has already been added to rmfiles,
- # add $file without .exe
- rmfiles="$rmfiles $file"
- ;;
- esac
- # Do a test to see if this is a libtool program.
- if func_ltwrapper_p "$file"; then
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- relink_command=
- func_source $func_ltwrapper_scriptname_result
- rmfiles="$rmfiles $func_ltwrapper_scriptname_result"
- else
- relink_command=
- func_source $dir/$noexename
- fi
-
- # note $name still contains .exe if it was in $file originally
- # as does the version of $file that was added into $rmfiles
- rmfiles="$rmfiles $objdir/$name $objdir/${name}S.${objext}"
- if test "$fast_install" = yes && test -n "$relink_command"; then
- rmfiles="$rmfiles $objdir/lt-$name"
- fi
- if test "X$noexename" != "X$name" ; then
- rmfiles="$rmfiles $objdir/lt-${noexename}.c"
- fi
- fi
- fi
- ;;
- esac
- func_show_eval "$RM $rmfiles" 'exit_status=1'
- done
- objdir="$origobjdir"
-
- # Try to remove the ${objdir}s in the directories where we deleted files
- for dir in $rmdirs; do
- if test -d "$dir"; then
- func_show_eval "rmdir $dir >/dev/null 2>&1"
- fi
- done
-
- exit $exit_status
-}
-
-{ test "$mode" = uninstall || test "$mode" = clean; } &&
- func_mode_uninstall ${1+"$@"}
-
-test -z "$mode" && {
- help="$generic_help"
- func_fatal_help "you must specify a MODE"
-}
-
-test -z "$exec_cmd" && \
- func_fatal_help "invalid operation mode \`$mode'"
-
-if test -n "$exec_cmd"; then
- eval exec "$exec_cmd"
- exit $EXIT_FAILURE
-fi
-
-exit $exit_status
-
-
-# The TAGs below are defined such that we never get into a situation
-# in which we disable both kinds of libraries. Given conflicting
-# choices, we go for a static library, that is the most portable,
-# since we can't tell whether shared libraries were disabled because
-# the user asked for that or because the platform doesn't support
-# them. This is particularly important on AIX, because we don't
-# support having both static and shared libraries enabled at the same
-# time on that platform, so we default to a shared-only configuration.
-# If a disable-shared tag is given, we'll fallback to a static-only
-# configuration. But we'll never go from static-only to shared-only.
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
-build_libtool_libs=no
-build_old_libs=yes
-# ### END LIBTOOL TAG CONFIG: disable-shared
-
-# ### BEGIN LIBTOOL TAG CONFIG: disable-static
-build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
-# ### END LIBTOOL TAG CONFIG: disable-static
-
-# Local Variables:
-# mode:shell-script
-# sh-indentation:2
-# End:
-# vi:sw=2
-
-
-# ### BEGIN LIBTOOL TAG CONFIG: CXX
-
-# The linker used to build libraries.
-LD="/usr/bin/ld -m elf_x86_64"
-
-# Commands used to build an old-style archive.
-old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$oldlib"
-
-# A language specific compiler.
-CC="g++"
-
-# Is the compiler the GNU compiler?
-with_gcc=yes
-
-# Compiler flag to turn off builtin functions.
-no_builtin_flag=" -fno-builtin"
-
-# How to pass a linker flag through the compiler.
-wl="-Wl,"
-
-# Additional compiler flags for building library objects.
-pic_flag=" -fPIC -DPIC"
-
-# Compiler flag to prevent dynamic linking.
-link_static_flag="-static"
-
-# Does compiler simultaneously support -c and -o options?
-compiler_c_o="yes"
-
-# Whether or not to add -lc for building shared libraries.
-build_libtool_need_lc=no
-
-# Whether or not to disallow shared libs when runtime libs are static.
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-
-# Compiler flag to allow reflexive dlopens.
-export_dynamic_flag_spec="\${wl}--export-dynamic"
-
-# Compiler flag to generate shared objects directly from archives.
-whole_archive_flag_spec="\${wl}--whole-archive\$convenience \${wl}--no-whole-archive"
-
-# Whether the compiler copes with passing no objects directly.
-compiler_needs_object="no"
-
-# Create an old-style archive from a shared archive.
-old_archive_from_new_cmds=""
-
-# Create a temporary old-style archive to link instead of a shared archive.
-old_archive_from_expsyms_cmds=""
-
-# Commands used to build a shared archive.
-archive_cmds="\$CC -shared -nostdlib \$predep_objects \$libobjs \$deplibs \$postdep_objects \$compiler_flags \${wl}-soname \$wl\$soname -o \$lib"
-archive_expsym_cmds="\$CC -shared -nostdlib \$predep_objects \$libobjs \$deplibs \$postdep_objects \$compiler_flags \${wl}-soname \$wl\$soname \${wl}-retain-symbols-file \$wl\$export_symbols -o \$lib"
-
-# Commands used to build a loadable module if different from building
-# a shared archive.
-module_cmds=""
-module_expsym_cmds=""
-
-# Whether we are building with GNU ld or not.
-with_gnu_ld="yes"
-
-# Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag=""
-
-# Flag that enforces no undefined symbols.
-no_undefined_flag=""
-
-# Flag to hardcode $libdir into a binary during linking.
-# This must work even if $libdir does not exist
-hardcode_libdir_flag_spec="\${wl}-rpath \${wl}\$libdir"
-
-# If ld is used when linking, flag to hardcode $libdir into a binary
-# during linking. This must work even if $libdir does not exist.
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-# Whether we need a single "-rpath" flag with a separated argument.
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-
-# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
-# DIR into the resulting binary.
-hardcode_direct=no
-
-# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
-# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting ${shlibpath_var} if the
-# library is relocated.
-hardcode_direct_absolute=no
-
-# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-# into the resulting binary.
-hardcode_minus_L=no
-
-# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-# into the resulting binary.
-hardcode_shlibpath_var=unsupported
-
-# Set to "yes" if building a shared library automatically hardcodes DIR
-# into the library and all subsequent libraries and executables linked
-# against it.
-hardcode_automatic=no
-
-# Set to yes if linker adds runtime paths of dependent libraries
-# to runtime path list.
-inherit_rpath=no
-
-# Whether libtool must link a program against all its dependency libraries.
-link_all_deplibs=no
-
-# Fix the shell variable $srcfile for the compiler.
-fix_srcfile_path=""
-
-# Set to "yes" if exported symbols are required.
-always_export_symbols=no
-
-# The commands to list exported symbols.
-export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"
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-# Symbols that should not be listed in the preloaded symbols.
-exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"
-
-# Symbols that must always be exported.
-include_expsyms=""
-
-# Commands necessary for linking programs (against libraries) with templates.
-prelink_cmds=""
-
-# Specify filename containing input files.
-file_list_spec=""
-
-# How to hardcode a shared library path into an executable.
-hardcode_action=immediate
-
-# The directories searched by this compiler when creating a shared library.
-compiler_lib_search_dirs="/usr/lib/gcc/x86_64-redhat-linux/4.1.2 /usr/lib/gcc/x86_64-redhat-linux/4.1.2 /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64 /lib/../lib64 /usr/lib/../lib64"
-
-# Dependencies to place before and after the objects being linked to
-# create a shared library.
-predep_objects="/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/crti.o /usr/lib/gcc/x86_64-redhat-linux/4.1.2/crtbeginS.o"
-postdep_objects="/usr/lib/gcc/x86_64-redhat-linux/4.1.2/crtendS.o /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/crtn.o"
-predeps=""
-postdeps="-lstdc++ -lm -lgcc_s -lc -lgcc_s"
-
-# The library search path used internally by the compiler when linking
-# a shared library.
-compiler_lib_search_path="-L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64"
-
-# ### END LIBTOOL TAG CONFIG: CXX
+++ /dev/null
-# Generated from ltmain.m4sh.
-
-# ltmain.sh (GNU libtool) 2.2.6b
-# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007 2008 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html,
-# or obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-# Usage: $progname [OPTION]... [MODE-ARG]...
-#
-# Provide generalized library-building support services.
-#
-# --config show all configuration variables
-# --debug enable verbose shell tracing
-# -n, --dry-run display commands without modifying any files
-# --features display basic configuration information and exit
-# --mode=MODE use operation mode MODE
-# --preserve-dup-deps don't remove duplicate dependency libraries
-# --quiet, --silent don't print informational messages
-# --tag=TAG use configuration variables from tag TAG
-# -v, --verbose print informational messages (default)
-# --version print version information
-# -h, --help print short or long help message
-#
-# MODE must be one of the following:
-#
-# clean remove files from the build directory
-# compile compile a source file into a libtool object
-# execute automatically set library path, then run a program
-# finish complete the installation of libtool libraries
-# install install libraries or executables
-# link create a library or an executable
-# uninstall remove libraries from an installed directory
-#
-# MODE-ARGS vary depending on the MODE.
-# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
-#
-# When reporting a bug, please describe a test case to reproduce it and
-# include the following information:
-#
-# host-triplet: $host
-# shell: $SHELL
-# compiler: $LTCC
-# compiler flags: $LTCFLAGS
-# linker: $LD (gnu? $with_gnu_ld)
-# $progname: (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-# automake: $automake_version
-# autoconf: $autoconf_version
-#
-# Report bugs to <bug-libtool@gnu.org>.
-
-PROGRAM=ltmain.sh
-PACKAGE=libtool
-VERSION="2.2.6b Debian-2.2.6b-2ubuntu1"
-TIMESTAMP=""
-package_revision=1.3017
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
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-# NLS nuisances: We save the old values to restore during execute mode.
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-# e.g. LANG=C (notably SCO).
-lt_user_locale=
-lt_safe_locale=
-for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
- eval "if test \"\${$lt_var+set}\" = set; then
- save_$lt_var=\$$lt_var
- $lt_var=C
- export $lt_var
- lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
- lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
- fi"
-done
-
-$lt_unset CDPATH
-
-
-
-
-
-: ${CP="cp -f"}
-: ${ECHO="echo"}
-: ${EGREP="/bin/grep -E"}
-: ${FGREP="/bin/grep -F"}
-: ${GREP="/bin/grep"}
-: ${LN_S="ln -s"}
-: ${MAKE="make"}
-: ${MKDIR="mkdir"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-: ${SED="/bin/sed"}
-: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-: ${Xsed="$SED -e 1s/^X//"}
-
-# Global variables:
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-
-exit_status=$EXIT_SUCCESS
-
-# Make sure IFS has a sensible default
-lt_nl='
-'
-IFS=" $lt_nl"
-
-dirname="s,/[^/]*$,,"
-basename="s,^.*/,,"
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
- func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-# Generated shell functions inserted here.
-
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath="$0"
-
-# The name of this program:
-# In the unlikely event $progname began with a '-', it would play havoc with
-# func_echo (imagine progname=-n), so we prepend ./ in that case:
-func_dirname_and_basename "$progpath"
-progname=$func_basename_result
-case $progname in
- -*) progname=./$progname ;;
-esac
-
-# Make sure we have an absolute path for reexecution:
-case $progpath in
- [\\/]*|[A-Za-z]:\\*) ;;
- *[\\/]*)
- progdir=$func_dirname_result
- progdir=`cd "$progdir" && pwd`
- progpath="$progdir/$progname"
- ;;
- *)
- save_IFS="$IFS"
- IFS=:
- for progdir in $PATH; do
- IFS="$save_IFS"
- test -x "$progdir/$progname" && break
- done
- IFS="$save_IFS"
- test -n "$progdir" || progdir=`pwd`
- progpath="$progdir/$progname"
- ;;
-esac
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed="${SED}"' -e 1s/^X//'
-sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Re-`\' parameter expansions in output of double_quote_subst that were
-# `\'-ed in input to the same. If an odd number of `\' preceded a '$'
-# in input to double_quote_subst, that '$' was protected from expansion.
-# Since each input `\' is now two `\'s, look for any number of runs of
-# four `\'s followed by two `\'s and then a '$'. `\' that '$'.
-bs='\\'
-bs2='\\\\'
-bs4='\\\\\\\\'
-dollar='\$'
-sed_double_backslash="\
- s/$bs4/&\\
-/g
- s/^$bs2$dollar/$bs&/
- s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
- s/\n//g"
-
-# Standard options:
-opt_dry_run=false
-opt_help=false
-opt_quiet=false
-opt_verbose=false
-opt_warning=:
-
-# func_echo arg...
-# Echo program name prefixed message, along with the current mode
-# name if it has been set yet.
-func_echo ()
-{
- $ECHO "$progname${mode+: }$mode: $*"
-}
-
-# func_verbose arg...
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
- $opt_verbose && func_echo ${1+"$@"}
-
- # A bug in bash halts the script if the last line of a function
- # fails when set -e is in force, so we need another command to
- # work around that:
- :
-}
-
-# func_error arg...
-# Echo program name prefixed message to standard error.
-func_error ()
-{
- $ECHO "$progname${mode+: }$mode: "${1+"$@"} 1>&2
-}
-
-# func_warning arg...
-# Echo program name prefixed warning message to standard error.
-func_warning ()
-{
- $opt_warning && $ECHO "$progname${mode+: }$mode: warning: "${1+"$@"} 1>&2
-
- # bash bug again:
- :
-}
-
-# func_fatal_error arg...
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
- func_error ${1+"$@"}
- exit $EXIT_FAILURE
-}
-
-# func_fatal_help arg...
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
- func_error ${1+"$@"}
- func_fatal_error "$help"
-}
-help="Try \`$progname --help' for more information." ## default
-
-
-# func_grep expression filename
-# Check whether EXPRESSION matches any line of FILENAME, without output.
-func_grep ()
-{
- $GREP "$1" "$2" >/dev/null 2>&1
-}
-
-
-# func_mkdir_p directory-path
-# Make sure the entire path to DIRECTORY-PATH is available.
-func_mkdir_p ()
-{
- my_directory_path="$1"
- my_dir_list=
-
- if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
-
- # Protect directory names starting with `-'
- case $my_directory_path in
- -*) my_directory_path="./$my_directory_path" ;;
- esac
-
- # While some portion of DIR does not yet exist...
- while test ! -d "$my_directory_path"; do
- # ...make a list in topmost first order. Use a colon delimited
- # list incase some portion of path contains whitespace.
- my_dir_list="$my_directory_path:$my_dir_list"
-
- # If the last portion added has no slash in it, the list is done
- case $my_directory_path in */*) ;; *) break ;; esac
-
- # ...otherwise throw away the child directory and loop
- my_directory_path=`$ECHO "X$my_directory_path" | $Xsed -e "$dirname"`
- done
- my_dir_list=`$ECHO "X$my_dir_list" | $Xsed -e 's,:*$,,'`
-
- save_mkdir_p_IFS="$IFS"; IFS=':'
- for my_dir in $my_dir_list; do
- IFS="$save_mkdir_p_IFS"
- # mkdir can fail with a `File exist' error if two processes
- # try to create one of the directories concurrently. Don't
- # stop in that case!
- $MKDIR "$my_dir" 2>/dev/null || :
- done
- IFS="$save_mkdir_p_IFS"
-
- # Bail out if we (or some other process) failed to create a directory.
- test -d "$my_directory_path" || \
- func_fatal_error "Failed to create \`$1'"
- fi
-}
-
-
-# func_mktempdir [string]
-# Make a temporary directory that won't clash with other running
-# libtool processes, and avoids race conditions if possible. If
-# given, STRING is the basename for that directory.
-func_mktempdir ()
-{
- my_template="${TMPDIR-/tmp}/${1-$progname}"
-
- if test "$opt_dry_run" = ":"; then
- # Return a directory name, but don't create it in dry-run mode
- my_tmpdir="${my_template}-$$"
- else
-
- # If mktemp works, use that first and foremost
- my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
-
- if test ! -d "$my_tmpdir"; then
- # Failing that, at least try and use $RANDOM to avoid a race
- my_tmpdir="${my_template}-${RANDOM-0}$$"
-
- save_mktempdir_umask=`umask`
- umask 0077
- $MKDIR "$my_tmpdir"
- umask $save_mktempdir_umask
- fi
-
- # If we're not in dry-run mode, bomb out on failure
- test -d "$my_tmpdir" || \
- func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
- fi
-
- $ECHO "X$my_tmpdir" | $Xsed
-}
-
-
-# func_quote_for_eval arg
-# Aesthetically quote ARG to be evaled later.
-# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
-# is double-quoted, suitable for a subsequent eval, whereas
-# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
-# which are still active within double quotes backslashified.
-func_quote_for_eval ()
-{
- case $1 in
- *[\\\`\"\$]*)
- func_quote_for_eval_unquoted_result=`$ECHO "X$1" | $Xsed -e "$sed_quote_subst"` ;;
- *)
- func_quote_for_eval_unquoted_result="$1" ;;
- esac
-
- case $func_quote_for_eval_unquoted_result in
- # Double-quote args containing shell metacharacters to delay
- # word splitting, command substitution and and variable
- # expansion for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
- ;;
- *)
- func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
- esac
-}
-
-
-# func_quote_for_expand arg
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
- case $1 in
- *[\\\`\"]*)
- my_arg=`$ECHO "X$1" | $Xsed \
- -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
- *)
- my_arg="$1" ;;
- esac
-
- case $my_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting and command substitution for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- my_arg="\"$my_arg\""
- ;;
- esac
-
- func_quote_for_expand_result="$my_arg"
-}
-
-
-# func_show_eval cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
-
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- if ${opt_dry_run-false}; then :; else
- eval "$my_cmd"
- my_status=$?
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
-
-
-# func_show_eval_locale cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it. Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
-
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- if ${opt_dry_run-false}; then :; else
- eval "$lt_user_locale
- $my_cmd"
- my_status=$?
- eval "$lt_safe_locale"
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
-
-
-
-
-
-# func_version
-# Echo version message to standard output and exit.
-func_version ()
-{
- $SED -n '/^# '$PROGRAM' (GNU /,/# warranty; / {
- s/^# //
- s/^# *$//
- s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
- p
- }' < "$progpath"
- exit $?
-}
-
-# func_usage
-# Echo short help message to standard output and exit.
-func_usage ()
-{
- $SED -n '/^# Usage:/,/# -h/ {
- s/^# //
- s/^# *$//
- s/\$progname/'$progname'/
- p
- }' < "$progpath"
- $ECHO
- $ECHO "run \`$progname --help | more' for full usage"
- exit $?
-}
-
-# func_help
-# Echo long help message to standard output and exit.
-func_help ()
-{
- $SED -n '/^# Usage:/,/# Report bugs to/ {
- s/^# //
- s/^# *$//
- s*\$progname*'$progname'*
- s*\$host*'"$host"'*
- s*\$SHELL*'"$SHELL"'*
- s*\$LTCC*'"$LTCC"'*
- s*\$LTCFLAGS*'"$LTCFLAGS"'*
- s*\$LD*'"$LD"'*
- s/\$with_gnu_ld/'"$with_gnu_ld"'/
- s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
- s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
- p
- }' < "$progpath"
- exit $?
-}
-
-# func_missing_arg argname
-# Echo program name prefixed message to standard error and set global
-# exit_cmd.
-func_missing_arg ()
-{
- func_error "missing argument for $1"
- exit_cmd=exit
-}
-
-exit_cmd=:
-
-
-
-
-
-# Check that we have a working $ECHO.
-if test "X$1" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
-elif test "X$1" = X--fallback-echo; then
- # Avoid inline document here, it may be left over
- :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t'; then
- # Yippee, $ECHO works!
- :
-else
- # Restart under the correct shell, and then maybe $ECHO will work.
- exec $SHELL "$progpath" --no-reexec ${1+"$@"}
-fi
-
-if test "X$1" = X--fallback-echo; then
- # used as fallback echo
- shift
- cat <<EOF
-$*
-EOF
- exit $EXIT_SUCCESS
-fi
-
-magic="%%%MAGIC variable%%%"
-magic_exe="%%%MAGIC EXE variable%%%"
-
-# Global variables.
-# $mode is unset
-nonopt=
-execute_dlfiles=
-preserve_args=
-lo2o="s/\\.lo\$/.${objext}/"
-o2lo="s/\\.${objext}\$/.lo/"
-extracted_archives=
-extracted_serial=0
-
-opt_dry_run=false
-opt_duplicate_deps=false
-opt_silent=false
-opt_debug=:
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end. This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-# func_fatal_configuration arg...
-# Echo program name prefixed message to standard error, followed by
-# a configuration failure hint, and exit.
-func_fatal_configuration ()
-{
- func_error ${1+"$@"}
- func_error "See the $PACKAGE documentation for more information."
- func_fatal_error "Fatal configuration error."
-}
-
-
-# func_config
-# Display the configuration for all the tags in this script.
-func_config ()
-{
- re_begincf='^# ### BEGIN LIBTOOL'
- re_endcf='^# ### END LIBTOOL'
-
- # Default configuration.
- $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
-
- # Now print the configurations for the tags.
- for tagname in $taglist; do
- $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
- done
-
- exit $?
-}
-
-# func_features
-# Display the features supported by this script.
-func_features ()
-{
- $ECHO "host: $host"
- if test "$build_libtool_libs" = yes; then
- $ECHO "enable shared libraries"
- else
- $ECHO "disable shared libraries"
- fi
- if test "$build_old_libs" = yes; then
- $ECHO "enable static libraries"
- else
- $ECHO "disable static libraries"
- fi
-
- exit $?
-}
-
-# func_enable_tag tagname
-# Verify that TAGNAME is valid, and either flag an error and exit, or
-# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
-# variable here.
-func_enable_tag ()
-{
- # Global variable:
- tagname="$1"
-
- re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
- re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
- sed_extractcf="/$re_begincf/,/$re_endcf/p"
-
- # Validate tagname.
- case $tagname in
- *[!-_A-Za-z0-9,/]*)
- func_fatal_error "invalid tag name: $tagname"
- ;;
- esac
-
- # Don't test for the "default" C tag, as we know it's
- # there but not specially marked.
- case $tagname in
- CC) ;;
- *)
- if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
- taglist="$taglist $tagname"
-
- # Evaluate the configuration. Be careful to quote the path
- # and the sed script, to avoid splitting on whitespace, but
- # also don't use non-portable quotes within backquotes within
- # quotes we have to do it in 2 steps:
- extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
- eval "$extractedcf"
- else
- func_error "ignoring unknown tag $tagname"
- fi
- ;;
- esac
-}
-
-# Parse options once, thoroughly. This comes as soon as possible in
-# the script to make things like `libtool --version' happen quickly.
-{
-
- # Shorthand for --mode=foo, only valid as the first argument
- case $1 in
- clean|clea|cle|cl)
- shift; set dummy --mode clean ${1+"$@"}; shift
- ;;
- compile|compil|compi|comp|com|co|c)
- shift; set dummy --mode compile ${1+"$@"}; shift
- ;;
- execute|execut|execu|exec|exe|ex|e)
- shift; set dummy --mode execute ${1+"$@"}; shift
- ;;
- finish|finis|fini|fin|fi|f)
- shift; set dummy --mode finish ${1+"$@"}; shift
- ;;
- install|instal|insta|inst|ins|in|i)
- shift; set dummy --mode install ${1+"$@"}; shift
- ;;
- link|lin|li|l)
- shift; set dummy --mode link ${1+"$@"}; shift
- ;;
- uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
- shift; set dummy --mode uninstall ${1+"$@"}; shift
- ;;
- esac
-
- # Parse non-mode specific arguments:
- while test "$#" -gt 0; do
- opt="$1"
- shift
-
- case $opt in
- --config) func_config ;;
-
- --debug) preserve_args="$preserve_args $opt"
- func_echo "enabling shell trace mode"
- opt_debug='set -x'
- $opt_debug
- ;;
-
- -dlopen) test "$#" -eq 0 && func_missing_arg "$opt" && break
- execute_dlfiles="$execute_dlfiles $1"
- shift
- ;;
-
- --dry-run | -n) opt_dry_run=: ;;
- --features) func_features ;;
- --finish) mode="finish" ;;
-
- --mode) test "$#" -eq 0 && func_missing_arg "$opt" && break
- case $1 in
- # Valid mode arguments:
- clean) ;;
- compile) ;;
- execute) ;;
- finish) ;;
- install) ;;
- link) ;;
- relink) ;;
- uninstall) ;;
-
- # Catch anything else as an error
- *) func_error "invalid argument for $opt"
- exit_cmd=exit
- break
- ;;
- esac
-
- mode="$1"
- shift
- ;;
-
- --preserve-dup-deps)
- opt_duplicate_deps=: ;;
-
- --quiet|--silent) preserve_args="$preserve_args $opt"
- opt_silent=:
- ;;
-
- --verbose| -v) preserve_args="$preserve_args $opt"
- opt_silent=false
- ;;
-
- --tag) test "$#" -eq 0 && func_missing_arg "$opt" && break
- preserve_args="$preserve_args $opt $1"
- func_enable_tag "$1" # tagname is set here
- shift
- ;;
-
- # Separate optargs to long options:
- -dlopen=*|--mode=*|--tag=*)
- func_opt_split "$opt"
- set dummy "$func_opt_split_opt" "$func_opt_split_arg" ${1+"$@"}
- shift
- ;;
-
- -\?|-h) func_usage ;;
- --help) opt_help=: ;;
- --version) func_version ;;
-
- -*) func_fatal_help "unrecognized option \`$opt'" ;;
-
- *) nonopt="$opt"
- break
- ;;
- esac
- done
-
-
- case $host in
- *cygwin* | *mingw* | *pw32* | *cegcc*)
- # don't eliminate duplications in $postdeps and $predeps
- opt_duplicate_compiler_generated_deps=:
- ;;
- *)
- opt_duplicate_compiler_generated_deps=$opt_duplicate_deps
- ;;
- esac
-
- # Having warned about all mis-specified options, bail out if
- # anything was wrong.
- $exit_cmd $EXIT_FAILURE
-}
-
-# func_check_version_match
-# Ensure that we are using m4 macros, and libtool script from the same
-# release of libtool.
-func_check_version_match ()
-{
- if test "$package_revision" != "$macro_revision"; then
- if test "$VERSION" != "$macro_version"; then
- if test -z "$macro_version"; then
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from an older release.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- fi
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
-$progname: but the definition of this LT_INIT comes from revision $macro_revision.
-$progname: You should recreate aclocal.m4 with macros from revision $package_revision
-$progname: of $PACKAGE $VERSION and run autoconf again.
-_LT_EOF
- fi
-
- exit $EXIT_MISMATCH
- fi
-}
-
-
-## ----------- ##
-## Main. ##
-## ----------- ##
-
-$opt_help || {
- # Sanity checks first:
- func_check_version_match
-
- if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
- func_fatal_configuration "not configured to build any kind of library"
- fi
-
- test -z "$mode" && func_fatal_error "error: you must specify a MODE."
-
-
- # Darwin sucks
- eval std_shrext=\"$shrext_cmds\"
-
-
- # Only execute mode is allowed to have -dlopen flags.
- if test -n "$execute_dlfiles" && test "$mode" != execute; then
- func_error "unrecognized option \`-dlopen'"
- $ECHO "$help" 1>&2
- exit $EXIT_FAILURE
- fi
-
- # Change the help message to a mode-specific one.
- generic_help="$help"
- help="Try \`$progname --help --mode=$mode' for more information."
-}
-
-
-# func_lalib_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_lalib_p ()
-{
- test -f "$1" &&
- $SED -e 4q "$1" 2>/dev/null \
- | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
-# func_lalib_unsafe_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function implements the same check as func_lalib_p without
-# resorting to external programs. To this end, it redirects stdin and
-# closes it afterwards, without saving the original file descriptor.
-# As a safety measure, use it only where a negative result would be
-# fatal anyway. Works if `file' does not exist.
-func_lalib_unsafe_p ()
-{
- lalib_p=no
- if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
- for lalib_p_l in 1 2 3 4
- do
- read lalib_p_line
- case "$lalib_p_line" in
- \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
- esac
- done
- exec 0<&5 5<&-
- fi
- test "$lalib_p" = yes
-}
-
-# func_ltwrapper_script_p file
-# True iff FILE is a libtool wrapper script
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_script_p ()
-{
- func_lalib_p "$1"
-}
-
-# func_ltwrapper_executable_p file
-# True iff FILE is a libtool wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_executable_p ()
-{
- func_ltwrapper_exec_suffix=
- case $1 in
- *.exe) ;;
- *) func_ltwrapper_exec_suffix=.exe ;;
- esac
- $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
-}
-
-# func_ltwrapper_scriptname file
-# Assumes file is an ltwrapper_executable
-# uses $file to determine the appropriate filename for a
-# temporary ltwrapper_script.
-func_ltwrapper_scriptname ()
-{
- func_ltwrapper_scriptname_result=""
- if func_ltwrapper_executable_p "$1"; then
- func_dirname_and_basename "$1" "" "."
- func_stripname '' '.exe' "$func_basename_result"
- func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
- fi
-}
-
-# func_ltwrapper_p file
-# True iff FILE is a libtool wrapper script or wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_p ()
-{
- func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
-}
-
-
-# func_execute_cmds commands fail_cmd
-# Execute tilde-delimited COMMANDS.
-# If FAIL_CMD is given, eval that upon failure.
-# FAIL_CMD may read-access the current command in variable CMD!
-func_execute_cmds ()
-{
- $opt_debug
- save_ifs=$IFS; IFS='~'
- for cmd in $1; do
- IFS=$save_ifs
- eval cmd=\"$cmd\"
- func_show_eval "$cmd" "${2-:}"
- done
- IFS=$save_ifs
-}
-
-
-# func_source file
-# Source FILE, adding directory component if necessary.
-# Note that it is not necessary on cygwin/mingw to append a dot to
-# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
-# behavior happens only for exec(3), not for open(2)! Also, sourcing
-# `FILE.' does not work on cygwin managed mounts.
-func_source ()
-{
- $opt_debug
- case $1 in
- */* | *\\*) . "$1" ;;
- *) . "./$1" ;;
- esac
-}
-
-
-# func_infer_tag arg
-# Infer tagged configuration to use if any are available and
-# if one wasn't chosen via the "--tag" command line option.
-# Only attempt this if the compiler in the base compile
-# command doesn't match the default compiler.
-# arg is usually of the form 'gcc ...'
-func_infer_tag ()
-{
- $opt_debug
- if test -n "$available_tags" && test -z "$tagname"; then
- CC_quoted=
- for arg in $CC; do
- func_quote_for_eval "$arg"
- CC_quoted="$CC_quoted $func_quote_for_eval_result"
- done
- case $@ in
- # Blanks in the command may have been stripped by the calling shell,
- # but not from the CC environment variable when configure was run.
- " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*) ;;
- # Blanks at the start of $base_compile will cause this to fail
- # if we don't check for them as well.
- *)
- for z in $available_tags; do
- if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
- # Evaluate the configuration.
- eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
- CC_quoted=
- for arg in $CC; do
- # Double-quote args containing other shell metacharacters.
- func_quote_for_eval "$arg"
- CC_quoted="$CC_quoted $func_quote_for_eval_result"
- done
- case "$@ " in
- " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*)
- # The compiler in the base compile command matches
- # the one in the tagged configuration.
- # Assume this is the tagged configuration we want.
- tagname=$z
- break
- ;;
- esac
- fi
- done
- # If $tagname still isn't set, then no tagged configuration
- # was found and let the user know that the "--tag" command
- # line option must be used.
- if test -z "$tagname"; then
- func_echo "unable to infer tagged configuration"
- func_fatal_error "specify a tag with \`--tag'"
-# else
-# func_verbose "using $tagname tagged configuration"
- fi
- ;;
- esac
- fi
-}
-
-
-
-# func_write_libtool_object output_name pic_name nonpic_name
-# Create a libtool object file (analogous to a ".la" file),
-# but don't create it if we're doing a dry run.
-func_write_libtool_object ()
-{
- write_libobj=${1}
- if test "$build_libtool_libs" = yes; then
- write_lobj=\'${2}\'
- else
- write_lobj=none
- fi
-
- if test "$build_old_libs" = yes; then
- write_oldobj=\'${3}\'
- else
- write_oldobj=none
- fi
-
- $opt_dry_run || {
- cat >${write_libobj}T <<EOF
-# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object=$write_lobj
-
-# Name of the non-PIC object
-non_pic_object=$write_oldobj
-
-EOF
- $MV "${write_libobj}T" "${write_libobj}"
- }
-}
-
-# func_mode_compile arg...
-func_mode_compile ()
-{
- $opt_debug
- # Get the compilation command and the source file.
- base_compile=
- srcfile="$nonopt" # always keep a non-empty value in "srcfile"
- suppress_opt=yes
- suppress_output=
- arg_mode=normal
- libobj=
- later=
- pie_flag=
-
- for arg
- do
- case $arg_mode in
- arg )
- # do not "continue". Instead, add this to base_compile
- lastarg="$arg"
- arg_mode=normal
- ;;
-
- target )
- libobj="$arg"
- arg_mode=normal
- continue
- ;;
-
- normal )
- # Accept any command-line options.
- case $arg in
- -o)
- test -n "$libobj" && \
- func_fatal_error "you cannot specify \`-o' more than once"
- arg_mode=target
- continue
- ;;
-
- -pie | -fpie | -fPIE)
- pie_flag="$pie_flag $arg"
- continue
- ;;
-
- -shared | -static | -prefer-pic | -prefer-non-pic)
- later="$later $arg"
- continue
- ;;
-
- -no-suppress)
- suppress_opt=no
- continue
- ;;
-
- -Xcompiler)
- arg_mode=arg # the next one goes into the "base_compile" arg list
- continue # The current "srcfile" will either be retained or
- ;; # replaced later. I would guess that would be a bug.
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- lastarg=
- save_ifs="$IFS"; IFS=','
- for arg in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$arg"
- lastarg="$lastarg $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$lastarg"
- lastarg=$func_stripname_result
-
- # Add the arguments to base_compile.
- base_compile="$base_compile $lastarg"
- continue
- ;;
-
- *)
- # Accept the current argument as the source file.
- # The previous "srcfile" becomes the current argument.
- #
- lastarg="$srcfile"
- srcfile="$arg"
- ;;
- esac # case $arg
- ;;
- esac # case $arg_mode
-
- # Aesthetically quote the previous argument.
- func_quote_for_eval "$lastarg"
- base_compile="$base_compile $func_quote_for_eval_result"
- done # for arg
-
- case $arg_mode in
- arg)
- func_fatal_error "you must specify an argument for -Xcompile"
- ;;
- target)
- func_fatal_error "you must specify a target with \`-o'"
- ;;
- *)
- # Get the name of the library object.
- test -z "$libobj" && {
- func_basename "$srcfile"
- libobj="$func_basename_result"
- }
- ;;
- esac
-
- # Recognize several different file suffixes.
- # If the user specifies -o file.o, it is replaced with file.lo
- case $libobj in
- *.[cCFSifmso] | \
- *.ada | *.adb | *.ads | *.asm | \
- *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
- *.[fF][09]? | *.for | *.java | *.obj | *.sx)
- func_xform "$libobj"
- libobj=$func_xform_result
- ;;
- esac
-
- case $libobj in
- *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
- *)
- func_fatal_error "cannot determine name of library object from \`$libobj'"
- ;;
- esac
-
- func_infer_tag $base_compile
-
- for arg in $later; do
- case $arg in
- -shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
- build_old_libs=no
- continue
- ;;
-
- -static)
- build_libtool_libs=no
- build_old_libs=yes
- continue
- ;;
-
- -prefer-pic)
- pic_mode=yes
- continue
- ;;
-
- -prefer-non-pic)
- pic_mode=no
- continue
- ;;
- esac
- done
-
- func_quote_for_eval "$libobj"
- test "X$libobj" != "X$func_quote_for_eval_result" \
- && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
- && func_warning "libobj name \`$libobj' may not contain shell special characters."
- func_dirname_and_basename "$obj" "/" ""
- objname="$func_basename_result"
- xdir="$func_dirname_result"
- lobj=${xdir}$objdir/$objname
-
- test -z "$base_compile" && \
- func_fatal_help "you must specify a compilation command"
-
- # Delete any leftover library objects.
- if test "$build_old_libs" = yes; then
- removelist="$obj $lobj $libobj ${libobj}T"
- else
- removelist="$lobj $libobj ${libobj}T"
- fi
-
- # On Cygwin there's no "real" PIC flag so we must build both object types
- case $host_os in
- cygwin* | mingw* | pw32* | os2* | cegcc*)
- pic_mode=default
- ;;
- esac
- if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
- # non-PIC code in shared libraries is not supported
- pic_mode=default
- fi
-
- # Calculate the filename of the output object if compiler does
- # not support -o with -c
- if test "$compiler_c_o" = no; then
- output_obj=`$ECHO "X$srcfile" | $Xsed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.${objext}
- lockfile="$output_obj.lock"
- else
- output_obj=
- need_locks=no
- lockfile=
- fi
-
- # Lock this critical section if it is needed
- # We use this script file to make the link, it avoids creating a new file
- if test "$need_locks" = yes; then
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- elif test "$need_locks" = warn; then
- if test -f "$lockfile"; then
- $ECHO "\
-*** ERROR, $lockfile exists and contains:
-`cat $lockfile 2>/dev/null`
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
- removelist="$removelist $output_obj"
- $ECHO "$srcfile" > "$lockfile"
- fi
-
- $opt_dry_run || $RM $removelist
- removelist="$removelist $lockfile"
- trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
-
- if test -n "$fix_srcfile_path"; then
- eval srcfile=\"$fix_srcfile_path\"
- fi
- func_quote_for_eval "$srcfile"
- qsrcfile=$func_quote_for_eval_result
-
- # Only build a PIC object if we are building libtool libraries.
- if test "$build_libtool_libs" = yes; then
- # Without this assignment, base_compile gets emptied.
- fbsd_hideous_sh_bug=$base_compile
-
- if test "$pic_mode" != no; then
- command="$base_compile $qsrcfile $pic_flag"
- else
- # Don't build PIC code
- command="$base_compile $qsrcfile"
- fi
-
- func_mkdir_p "$xdir$objdir"
-
- if test -z "$output_obj"; then
- # Place PIC objects in $objdir
- command="$command -o $lobj"
- fi
-
- func_show_eval_locale "$command" \
- 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
-
- if test "$need_locks" = warn &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed, then go on to compile the next one
- if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
- func_show_eval '$MV "$output_obj" "$lobj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
-
- # Allow error messages only from the first compilation.
- if test "$suppress_opt" = yes; then
- suppress_output=' >/dev/null 2>&1'
- fi
- fi
-
- # Only build a position-dependent object if we build old libraries.
- if test "$build_old_libs" = yes; then
- if test "$pic_mode" != yes; then
- # Don't build PIC code
- command="$base_compile $qsrcfile$pie_flag"
- else
- command="$base_compile $qsrcfile $pic_flag"
- fi
- if test "$compiler_c_o" = yes; then
- command="$command -o $obj"
- fi
-
- # Suppress compiler output if we already did a PIC compilation.
- command="$command$suppress_output"
- func_show_eval_locale "$command" \
- '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
-
- if test "$need_locks" = warn &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed
- if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
- func_show_eval '$MV "$output_obj" "$obj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
- fi
-
- $opt_dry_run || {
- func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
-
- # Unlock the critical section if it was locked
- if test "$need_locks" != no; then
- removelist=$lockfile
- $RM "$lockfile"
- fi
- }
-
- exit $EXIT_SUCCESS
-}
-
-$opt_help || {
-test "$mode" = compile && func_mode_compile ${1+"$@"}
-}
-
-func_mode_help ()
-{
- # We need to display help for each of the modes.
- case $mode in
- "")
- # Generic help is extracted from the usage comments
- # at the start of this file.
- func_help
- ;;
-
- clean)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
-
-Remove files from the build directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, object or program, all the files associated
-with it are deleted. Otherwise, only FILE itself is deleted using RM."
- ;;
-
- compile)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
-
-Compile a source file into a libtool library object.
-
-This mode accepts the following additional options:
-
- -o OUTPUT-FILE set the output file name to OUTPUT-FILE
- -no-suppress do not suppress compiler output for multiple passes
- -prefer-pic try to building PIC objects only
- -prefer-non-pic try to building non-PIC objects only
- -shared do not build a \`.o' file suitable for static linking
- -static only build a \`.o' file suitable for static linking
-
-COMPILE-COMMAND is a command to be used in creating a \`standard' object file
-from the given SOURCEFILE.
-
-The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix \`.c' with the
-library object suffix, \`.lo'."
- ;;
-
- execute)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
-
-Automatically set library path, then run a program.
-
-This mode accepts the following additional options:
-
- -dlopen FILE add the directory containing FILE to the library path
-
-This mode sets the library path environment variable according to \`-dlopen'
-flags.
-
-If any of the ARGS are libtool executable wrappers, then they are translated
-into their corresponding uninstalled binary, and any of their required library
-directories are added to the library path.
-
-Then, COMMAND is executed, with ARGS as arguments."
- ;;
-
- finish)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
-
-Complete the installation of libtool libraries.
-
-Each LIBDIR is a directory that contains libtool libraries.
-
-The commands that this mode executes may require superuser privileges. Use
-the \`--dry-run' option if you just want to see what would be executed."
- ;;
-
- install)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
-
-Install executables or libraries.
-
-INSTALL-COMMAND is the installation command. The first component should be
-either the \`install' or \`cp' program.
-
-The following components of INSTALL-COMMAND are treated specially:
-
- -inst-prefix PREFIX-DIR Use PREFIX-DIR as a staging area for installation
-
-The rest of the components are interpreted as arguments to that command (only
-BSD-compatible install options are recognized)."
- ;;
-
- link)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
-
-Link object files or libraries together to form another library, or to
-create an executable program.
-
-LINK-COMMAND is a command using the C compiler that you would use to create
-a program from several object files.
-
-The following components of LINK-COMMAND are treated specially:
-
- -all-static do not do any dynamic linking at all
- -avoid-version do not add a version suffix if possible
- -dlopen FILE \`-dlpreopen' FILE if it cannot be dlopened at runtime
- -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
- -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
- -export-symbols SYMFILE
- try to export only the symbols listed in SYMFILE
- -export-symbols-regex REGEX
- try to export only the symbols matching REGEX
- -LLIBDIR search LIBDIR for required installed libraries
- -lNAME OUTPUT-FILE requires the installed library libNAME
- -module build a library that can dlopened
- -no-fast-install disable the fast-install mode
- -no-install link a not-installable executable
- -no-undefined declare that a library does not refer to external symbols
- -o OUTPUT-FILE create OUTPUT-FILE from the specified objects
- -objectlist FILE Use a list of object files found in FILE to specify objects
- -precious-files-regex REGEX
- don't remove output files matching REGEX
- -release RELEASE specify package release information
- -rpath LIBDIR the created library will eventually be installed in LIBDIR
- -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries
- -shared only do dynamic linking of libtool libraries
- -shrext SUFFIX override the standard shared library file extension
- -static do not do any dynamic linking of uninstalled libtool libraries
- -static-libtool-libs
- do not do any dynamic linking of libtool libraries
- -version-info CURRENT[:REVISION[:AGE]]
- specify library version info [each variable defaults to 0]
- -weak LIBNAME declare that the target provides the LIBNAME interface
-
-All other options (arguments beginning with \`-') are ignored.
-
-Every other argument is treated as a filename. Files ending in \`.la' are
-treated as uninstalled libtool libraries, other files are standard or library
-object files.
-
-If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
-only library objects (\`.lo' files) may be specified, and \`-rpath' is
-required, except when creating a convenience library.
-
-If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
-using \`ar' and \`ranlib', or on Windows using \`lib'.
-
-If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
-is created, otherwise an executable program is created."
- ;;
-
- uninstall)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
-
-Remove libraries from an installation directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, all the files associated with it are deleted.
-Otherwise, only FILE itself is deleted using RM."
- ;;
-
- *)
- func_fatal_help "invalid operation mode \`$mode'"
- ;;
- esac
-
- $ECHO
- $ECHO "Try \`$progname --help' for more information about other modes."
-
- exit $?
-}
-
- # Now that we've collected a possible --mode arg, show help if necessary
- $opt_help && func_mode_help
-
-
-# func_mode_execute arg...
-func_mode_execute ()
-{
- $opt_debug
- # The first argument is the command name.
- cmd="$nonopt"
- test -z "$cmd" && \
- func_fatal_help "you must specify a COMMAND"
-
- # Handle -dlopen flags immediately.
- for file in $execute_dlfiles; do
- test -f "$file" \
- || func_fatal_help "\`$file' is not a file"
-
- dir=
- case $file in
- *.la)
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$lib' is not a valid libtool archive"
-
- # Read the libtool library.
- dlname=
- library_names=
- func_source "$file"
-
- # Skip this library if it cannot be dlopened.
- if test -z "$dlname"; then
- # Warn if it was a shared library.
- test -n "$library_names" && \
- func_warning "\`$file' was not linked with \`-export-dynamic'"
- continue
- fi
-
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
-
- if test -f "$dir/$objdir/$dlname"; then
- dir="$dir/$objdir"
- else
- if test ! -f "$dir/$dlname"; then
- func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
- fi
- fi
- ;;
-
- *.lo)
- # Just add the directory containing the .lo file.
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
- ;;
-
- *)
- func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
- continue
- ;;
- esac
-
- # Get the absolute pathname.
- absdir=`cd "$dir" && pwd`
- test -n "$absdir" && dir="$absdir"
-
- # Now add the directory to shlibpath_var.
- if eval "test -z \"\$$shlibpath_var\""; then
- eval "$shlibpath_var=\"\$dir\""
- else
- eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
- fi
- done
-
- # This variable tells wrapper scripts just to set shlibpath_var
- # rather than running their programs.
- libtool_execute_magic="$magic"
-
- # Check if any of the arguments is a wrapper script.
- args=
- for file
- do
- case $file in
- -*) ;;
- *)
- # Do a test to see if this is really a libtool program.
- if func_ltwrapper_script_p "$file"; then
- func_source "$file"
- # Transform arg to wrapped name.
- file="$progdir/$program"
- elif func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- func_source "$func_ltwrapper_scriptname_result"
- # Transform arg to wrapped name.
- file="$progdir/$program"
- fi
- ;;
- esac
- # Quote arguments (to preserve shell metacharacters).
- func_quote_for_eval "$file"
- args="$args $func_quote_for_eval_result"
- done
-
- if test "X$opt_dry_run" = Xfalse; then
- if test -n "$shlibpath_var"; then
- # Export the shlibpath_var.
- eval "export $shlibpath_var"
- fi
-
- # Restore saved environment variables
- for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
- do
- eval "if test \"\${save_$lt_var+set}\" = set; then
- $lt_var=\$save_$lt_var; export $lt_var
- else
- $lt_unset $lt_var
- fi"
- done
-
- # Now prepare to actually exec the command.
- exec_cmd="\$cmd$args"
- else
- # Display what would be done.
- if test -n "$shlibpath_var"; then
- eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
- $ECHO "export $shlibpath_var"
- fi
- $ECHO "$cmd$args"
- exit $EXIT_SUCCESS
- fi
-}
-
-test "$mode" = execute && func_mode_execute ${1+"$@"}
-
-
-# func_mode_finish arg...
-func_mode_finish ()
-{
- $opt_debug
- libdirs="$nonopt"
- admincmds=
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- for dir
- do
- libdirs="$libdirs $dir"
- done
-
- for libdir in $libdirs; do
- if test -n "$finish_cmds"; then
- # Do each command in the finish commands.
- func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
-'"$cmd"'"'
- fi
- if test -n "$finish_eval"; then
- # Do the single finish_eval.
- eval cmds=\"$finish_eval\"
- $opt_dry_run || eval "$cmds" || admincmds="$admincmds
- $cmds"
- fi
- done
- fi
-
- # Exit here if they wanted silent mode.
- $opt_silent && exit $EXIT_SUCCESS
-
- $ECHO "X----------------------------------------------------------------------" | $Xsed
- $ECHO "Libraries have been installed in:"
- for libdir in $libdirs; do
- $ECHO " $libdir"
- done
- $ECHO
- $ECHO "If you ever happen to want to link against installed libraries"
- $ECHO "in a given directory, LIBDIR, you must either use libtool, and"
- $ECHO "specify the full pathname of the library, or use the \`-LLIBDIR'"
- $ECHO "flag during linking and do at least one of the following:"
- if test -n "$shlibpath_var"; then
- $ECHO " - add LIBDIR to the \`$shlibpath_var' environment variable"
- $ECHO " during execution"
- fi
- if test -n "$runpath_var"; then
- $ECHO " - add LIBDIR to the \`$runpath_var' environment variable"
- $ECHO " during linking"
- fi
- if test -n "$hardcode_libdir_flag_spec"; then
- libdir=LIBDIR
- eval flag=\"$hardcode_libdir_flag_spec\"
-
- $ECHO " - use the \`$flag' linker flag"
- fi
- if test -n "$admincmds"; then
- $ECHO " - have your system administrator run these commands:$admincmds"
- fi
- if test -f /etc/ld.so.conf; then
- $ECHO " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
- fi
- $ECHO
-
- $ECHO "See any operating system documentation about shared libraries for"
- case $host in
- solaris2.[6789]|solaris2.1[0-9])
- $ECHO "more information, such as the ld(1), crle(1) and ld.so(8) manual"
- $ECHO "pages."
- ;;
- *)
- $ECHO "more information, such as the ld(1) and ld.so(8) manual pages."
- ;;
- esac
- $ECHO "X----------------------------------------------------------------------" | $Xsed
- exit $EXIT_SUCCESS
-}
-
-test "$mode" = finish && func_mode_finish ${1+"$@"}
-
-
-# func_mode_install arg...
-func_mode_install ()
-{
- $opt_debug
- # There may be an optional sh(1) argument at the beginning of
- # install_prog (especially on Windows NT).
- if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
- # Allow the use of GNU shtool's install command.
- $ECHO "X$nonopt" | $GREP shtool >/dev/null; then
- # Aesthetically quote it.
- func_quote_for_eval "$nonopt"
- install_prog="$func_quote_for_eval_result "
- arg=$1
- shift
- else
- install_prog=
- arg=$nonopt
- fi
-
- # The real first argument should be the name of the installation program.
- # Aesthetically quote it.
- func_quote_for_eval "$arg"
- install_prog="$install_prog$func_quote_for_eval_result"
-
- # We need to accept at least all the BSD install flags.
- dest=
- files=
- opts=
- prev=
- install_type=
- isdir=no
- stripme=
- for arg
- do
- if test -n "$dest"; then
- files="$files $dest"
- dest=$arg
- continue
- fi
-
- case $arg in
- -d) isdir=yes ;;
- -f)
- case " $install_prog " in
- *[\\\ /]cp\ *) ;;
- *) prev=$arg ;;
- esac
- ;;
- -g | -m | -o)
- prev=$arg
- ;;
- -s)
- stripme=" -s"
- continue
- ;;
- -*)
- ;;
- *)
- # If the previous option needed an argument, then skip it.
- if test -n "$prev"; then
- prev=
- else
- dest=$arg
- continue
- fi
- ;;
- esac
-
- # Aesthetically quote the argument.
- func_quote_for_eval "$arg"
- install_prog="$install_prog $func_quote_for_eval_result"
- done
-
- test -z "$install_prog" && \
- func_fatal_help "you must specify an install program"
-
- test -n "$prev" && \
- func_fatal_help "the \`$prev' option requires an argument"
-
- if test -z "$files"; then
- if test -z "$dest"; then
- func_fatal_help "no file or destination specified"
- else
- func_fatal_help "you must specify a destination"
- fi
- fi
-
- # Strip any trailing slash from the destination.
- func_stripname '' '/' "$dest"
- dest=$func_stripname_result
-
- # Check to see that the destination is a directory.
- test -d "$dest" && isdir=yes
- if test "$isdir" = yes; then
- destdir="$dest"
- destname=
- else
- func_dirname_and_basename "$dest" "" "."
- destdir="$func_dirname_result"
- destname="$func_basename_result"
-
- # Not a directory, so check to see that there is only one file specified.
- set dummy $files; shift
- test "$#" -gt 1 && \
- func_fatal_help "\`$dest' is not a directory"
- fi
- case $destdir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- for file in $files; do
- case $file in
- *.lo) ;;
- *)
- func_fatal_help "\`$destdir' must be an absolute directory name"
- ;;
- esac
- done
- ;;
- esac
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic="$magic"
-
- staticlibs=
- future_libdirs=
- current_libdirs=
- for file in $files; do
-
- # Do each installation.
- case $file in
- *.$libext)
- # Do the static libraries later.
- staticlibs="$staticlibs $file"
- ;;
-
- *.la)
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$file' is not a valid libtool archive"
-
- library_names=
- old_library=
- relink_command=
- func_source "$file"
-
- # Add the libdir to current_libdirs if it is the destination.
- if test "X$destdir" = "X$libdir"; then
- case "$current_libdirs " in
- *" $libdir "*) ;;
- *) current_libdirs="$current_libdirs $libdir" ;;
- esac
- else
- # Note the libdir as a future libdir.
- case "$future_libdirs " in
- *" $libdir "*) ;;
- *) future_libdirs="$future_libdirs $libdir" ;;
- esac
- fi
-
- func_dirname "$file" "/" ""
- dir="$func_dirname_result"
- dir="$dir$objdir"
-
- if test -n "$relink_command"; then
- # Determine the prefix the user has applied to our future dir.
- inst_prefix_dir=`$ECHO "X$destdir" | $Xsed -e "s%$libdir\$%%"`
-
- # Don't allow the user to place us outside of our expected
- # location b/c this prevents finding dependent libraries that
- # are installed to the same prefix.
- # At present, this check doesn't affect windows .dll's that
- # are installed into $libdir/../bin (currently, that works fine)
- # but it's something to keep an eye on.
- test "$inst_prefix_dir" = "$destdir" && \
- func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
-
- if test -n "$inst_prefix_dir"; then
- # Stick the inst_prefix_dir data into the link command.
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
- else
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%%"`
- fi
-
- func_warning "relinking \`$file'"
- func_show_eval "$relink_command" \
- 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
- fi
-
- # See the names of the shared library.
- set dummy $library_names; shift
- if test -n "$1"; then
- realname="$1"
- shift
-
- srcname="$realname"
- test -n "$relink_command" && srcname="$realname"T
-
- # Install the shared library and build the symlinks.
- func_show_eval "$install_prog $dir/$srcname $destdir/$realname" \
- 'exit $?'
- tstripme="$stripme"
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- case $realname in
- *.dll.a)
- tstripme=""
- ;;
- esac
- ;;
- esac
- if test -n "$tstripme" && test -n "$striplib"; then
- func_show_eval "$striplib $destdir/$realname" 'exit $?'
- fi
-
- if test "$#" -gt 0; then
- # Delete the old symlinks, and create new ones.
- # Try `ln -sf' first, because the `ln' binary might depend on
- # the symlink we replace! Solaris /bin/ln does not understand -f,
- # so we also need to try rm && ln -s.
- for linkname
- do
- test "$linkname" != "$realname" \
- && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
- done
- fi
-
- # Do each command in the postinstall commands.
- lib="$destdir/$realname"
- func_execute_cmds "$postinstall_cmds" 'exit $?'
- fi
-
- # Install the pseudo-library for information purposes.
- func_basename "$file"
- name="$func_basename_result"
- instname="$dir/$name"i
- func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
-
- # Maybe install the static library, too.
- test -n "$old_library" && staticlibs="$staticlibs $dir/$old_library"
- ;;
-
- *.lo)
- # Install (i.e. copy) a libtool object.
-
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile="$destdir/$destname"
- else
- func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
- fi
-
- # Deduce the name of the destination old-style object file.
- case $destfile in
- *.lo)
- func_lo2o "$destfile"
- staticdest=$func_lo2o_result
- ;;
- *.$objext)
- staticdest="$destfile"
- destfile=
- ;;
- *)
- func_fatal_help "cannot copy a libtool object to \`$destfile'"
- ;;
- esac
-
- # Install the libtool object if requested.
- test -n "$destfile" && \
- func_show_eval "$install_prog $file $destfile" 'exit $?'
-
- # Install the old object if enabled.
- if test "$build_old_libs" = yes; then
- # Deduce the name of the old-style object file.
- func_lo2o "$file"
- staticobj=$func_lo2o_result
- func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
- fi
- exit $EXIT_SUCCESS
- ;;
-
- *)
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile="$destdir/$destname"
- else
- func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
- fi
-
- # If the file is missing, and there is a .exe on the end, strip it
- # because it is most likely a libtool script we actually want to
- # install
- stripped_ext=""
- case $file in
- *.exe)
- if test ! -f "$file"; then
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- stripped_ext=".exe"
- fi
- ;;
- esac
-
- # Do a test to see if this is really a libtool program.
- case $host in
- *cygwin* | *mingw*)
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- wrapper=$func_ltwrapper_scriptname_result
- else
- func_stripname '' '.exe' "$file"
- wrapper=$func_stripname_result
- fi
- ;;
- *)
- wrapper=$file
- ;;
- esac
- if func_ltwrapper_script_p "$wrapper"; then
- notinst_deplibs=
- relink_command=
-
- func_source "$wrapper"
-
- # Check the variables that should have been set.
- test -z "$generated_by_libtool_version" && \
- func_fatal_error "invalid libtool wrapper script \`$wrapper'"
-
- finalize=yes
- for lib in $notinst_deplibs; do
- # Check to see that each library is installed.
- libdir=
- if test -f "$lib"; then
- func_source "$lib"
- fi
- libfile="$libdir/"`$ECHO "X$lib" | $Xsed -e 's%^.*/%%g'` ### testsuite: skip nested quoting test
- if test -n "$libdir" && test ! -f "$libfile"; then
- func_warning "\`$lib' has not been installed in \`$libdir'"
- finalize=no
- fi
- done
-
- relink_command=
- func_source "$wrapper"
-
- outputname=
- if test "$fast_install" = no && test -n "$relink_command"; then
- $opt_dry_run || {
- if test "$finalize" = yes; then
- tmpdir=`func_mktempdir`
- func_basename "$file$stripped_ext"
- file="$func_basename_result"
- outputname="$tmpdir/$file"
- # Replace the output file specification.
- relink_command=`$ECHO "X$relink_command" | $Xsed -e 's%@OUTPUT@%'"$outputname"'%g'`
-
- $opt_silent || {
- func_quote_for_expand "$relink_command"
- eval "func_echo $func_quote_for_expand_result"
- }
- if eval "$relink_command"; then :
- else
- func_error "error: relink \`$file' with the above command before installing it"
- $opt_dry_run || ${RM}r "$tmpdir"
- continue
- fi
- file="$outputname"
- else
- func_warning "cannot relink \`$file'"
- fi
- }
- else
- # Install the binary that we compiled earlier.
- file=`$ECHO "X$file$stripped_ext" | $Xsed -e "s%\([^/]*\)$%$objdir/\1%"`
- fi
- fi
-
- # remove .exe since cygwin /usr/bin/install will append another
- # one anyway
- case $install_prog,$host in
- */usr/bin/install*,*cygwin*)
- case $file:$destfile in
- *.exe:*.exe)
- # this is ok
- ;;
- *.exe:*)
- destfile=$destfile.exe
- ;;
- *:*.exe)
- func_stripname '' '.exe' "$destfile"
- destfile=$func_stripname_result
- ;;
- esac
- ;;
- esac
- func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
- $opt_dry_run || if test -n "$outputname"; then
- ${RM}r "$tmpdir"
- fi
- ;;
- esac
- done
-
- for file in $staticlibs; do
- func_basename "$file"
- name="$func_basename_result"
-
- # Set up the ranlib parameters.
- oldlib="$destdir/$name"
-
- func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
-
- if test -n "$stripme" && test -n "$old_striplib"; then
- func_show_eval "$old_striplib $oldlib" 'exit $?'
- fi
-
- # Do each command in the postinstall commands.
- func_execute_cmds "$old_postinstall_cmds" 'exit $?'
- done
-
- test -n "$future_libdirs" && \
- func_warning "remember to run \`$progname --finish$future_libdirs'"
-
- if test -n "$current_libdirs"; then
- # Maybe just do a dry run.
- $opt_dry_run && current_libdirs=" -n$current_libdirs"
- exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
- else
- exit $EXIT_SUCCESS
- fi
-}
-
-test "$mode" = install && func_mode_install ${1+"$@"}
-
-
-# func_generate_dlsyms outputname originator pic_p
-# Extract symbols from dlprefiles and create ${outputname}S.o with
-# a dlpreopen symbol table.
-func_generate_dlsyms ()
-{
- $opt_debug
- my_outputname="$1"
- my_originator="$2"
- my_pic_p="${3-no}"
- my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
- my_dlsyms=
-
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- if test -n "$NM" && test -n "$global_symbol_pipe"; then
- my_dlsyms="${my_outputname}S.c"
- else
- func_error "not configured to extract global symbols from dlpreopened files"
- fi
- fi
-
- if test -n "$my_dlsyms"; then
- case $my_dlsyms in
- "") ;;
- *.c)
- # Discover the nlist of each of the dlfiles.
- nlist="$output_objdir/${my_outputname}.nm"
-
- func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
-
- # Parse the name list into a source file.
- func_verbose "creating $output_objdir/$my_dlsyms"
-
- $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
-
-#ifdef __cplusplus
-extern \"C\" {
-#endif
-
-/* External symbol declarations for the compiler. */\
-"
-
- if test "$dlself" = yes; then
- func_verbose "generating symbol list for \`$output'"
-
- $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
-
- # Add our own program objects to the symbol list.
- progfiles=`$ECHO "X$objs$old_deplibs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- for progfile in $progfiles; do
- func_verbose "extracting global C symbols from \`$progfile'"
- $opt_dry_run || eval "$NM $progfile | $global_symbol_pipe >> '$nlist'"
- done
-
- if test -n "$exclude_expsyms"; then
- $opt_dry_run || {
- eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- if test -n "$export_symbols_regex"; then
- $opt_dry_run || {
- eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- export_symbols="$output_objdir/$outputname.exp"
- $opt_dry_run || {
- $RM $export_symbols
- eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- else
- $opt_dry_run || {
- eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
- eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- case $host in
- *cygwin | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- fi
- fi
-
- for dlprefile in $dlprefiles; do
- func_verbose "extracting global C symbols from \`$dlprefile'"
- func_basename "$dlprefile"
- name="$func_basename_result"
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- done
-
- $opt_dry_run || {
- # Make sure we have at least an empty file.
- test -f "$nlist" || : > "$nlist"
-
- if test -n "$exclude_expsyms"; then
- $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
- $MV "$nlist"T "$nlist"
- fi
-
- # Try sorting and uniquifying the output.
- if $GREP -v "^: " < "$nlist" |
- if sort -k 3 </dev/null >/dev/null 2>&1; then
- sort -k 3
- else
- sort +2
- fi |
- uniq > "$nlist"S; then
- :
- else
- $GREP -v "^: " < "$nlist" > "$nlist"S
- fi
-
- if test -f "$nlist"S; then
- eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
- else
- $ECHO '/* NONE */' >> "$output_objdir/$my_dlsyms"
- fi
-
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-
-/* The mapping between symbol names and symbols. */
-typedef struct {
- const char *name;
- void *address;
-} lt_dlsymlist;
-"
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-/* DATA imports from DLLs on WIN32 con't be const, because
- runtime relocations are performed -- see ld's documentation
- on pseudo-relocs. */"
- lt_dlsym_const= ;;
- *osf5*)
- echo >> "$output_objdir/$my_dlsyms" "\
-/* This system does not cope well with relocations in const data */"
- lt_dlsym_const= ;;
- *)
- lt_dlsym_const=const ;;
- esac
-
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-extern $lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];
-$lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[] =
-{\
- { \"$my_originator\", (void *) 0 },"
-
- case $need_lib_prefix in
- no)
- eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- *)
- eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- esac
- $ECHO >> "$output_objdir/$my_dlsyms" "\
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt_${my_prefix}_LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif\
-"
- } # !$opt_dry_run
-
- pic_flag_for_symtable=
- case "$compile_command " in
- *" -static "*) ;;
- *)
- case $host in
- # compiling the symbol table file with pic_flag works around
- # a FreeBSD bug that causes programs to crash when -lm is
- # linked before any other PIC object. But we must not use
- # pic_flag when linking with -static. The problem exists in
- # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
- *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
- pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
- *-*-hpux*)
- pic_flag_for_symtable=" $pic_flag" ;;
- *)
- if test "X$my_pic_p" != Xno; then
- pic_flag_for_symtable=" $pic_flag"
- fi
- ;;
- esac
- ;;
- esac
- symtab_cflags=
- for arg in $LTCFLAGS; do
- case $arg in
- -pie | -fpie | -fPIE) ;;
- *) symtab_cflags="$symtab_cflags $arg" ;;
- esac
- done
-
- # Now compile the dynamic symbol file.
- func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
-
- # Clean up the generated files.
- func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
-
- # Transform the symbol file into the correct name.
- symfileobj="$output_objdir/${my_outputname}S.$objext"
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- if test -f "$output_objdir/$my_outputname.def"; then
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- else
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- fi
- ;;
- *)
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- ;;
- esac
- ;;
- *)
- func_fatal_error "unknown suffix for \`$my_dlsyms'"
- ;;
- esac
- else
- # We keep going just in case the user didn't refer to
- # lt_preloaded_symbols. The linker will fail if global_symbol_pipe
- # really was required.
-
- # Nullify the symbol file.
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s% @SYMFILE@%%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s% @SYMFILE@%%"`
- fi
-}
-
-# func_win32_libid arg
-# return the library type of file 'arg'
-#
-# Need a lot of goo to handle *both* DLLs and import libs
-# Has to be a shell function in order to 'eat' the argument
-# that is supplied when $file_magic_command is called.
-func_win32_libid ()
-{
- $opt_debug
- win32_libid_type="unknown"
- win32_fileres=`file -L $1 2>/dev/null`
- case $win32_fileres in
- *ar\ archive\ import\ library*) # definitely import
- win32_libid_type="x86 archive import"
- ;;
- *ar\ archive*) # could be an import, or static
- if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
- $EGREP 'file format pe-i386(.*architecture: i386)?' >/dev/null ; then
- win32_nmres=`eval $NM -f posix -A $1 |
- $SED -n -e '
- 1,100{
- / I /{
- s,.*,import,
- p
- q
- }
- }'`
- case $win32_nmres in
- import*) win32_libid_type="x86 archive import";;
- *) win32_libid_type="x86 archive static";;
- esac
- fi
- ;;
- *DLL*)
- win32_libid_type="x86 DLL"
- ;;
- *executable*) # but shell scripts are "executable" too...
- case $win32_fileres in
- *MS\ Windows\ PE\ Intel*)
- win32_libid_type="x86 DLL"
- ;;
- esac
- ;;
- esac
- $ECHO "$win32_libid_type"
-}
-
-
-
-# func_extract_an_archive dir oldlib
-func_extract_an_archive ()
-{
- $opt_debug
- f_ex_an_ar_dir="$1"; shift
- f_ex_an_ar_oldlib="$1"
- func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" 'exit $?'
- if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
- fi
-}
-
-
-# func_extract_archives gentop oldlib ...
-func_extract_archives ()
-{
- $opt_debug
- my_gentop="$1"; shift
- my_oldlibs=${1+"$@"}
- my_oldobjs=""
- my_xlib=""
- my_xabs=""
- my_xdir=""
-
- for my_xlib in $my_oldlibs; do
- # Extract the objects.
- case $my_xlib in
- [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
- *) my_xabs=`pwd`"/$my_xlib" ;;
- esac
- func_basename "$my_xlib"
- my_xlib="$func_basename_result"
- my_xlib_u=$my_xlib
- while :; do
- case " $extracted_archives " in
- *" $my_xlib_u "*)
- func_arith $extracted_serial + 1
- extracted_serial=$func_arith_result
- my_xlib_u=lt$extracted_serial-$my_xlib ;;
- *) break ;;
- esac
- done
- extracted_archives="$extracted_archives $my_xlib_u"
- my_xdir="$my_gentop/$my_xlib_u"
-
- func_mkdir_p "$my_xdir"
-
- case $host in
- *-darwin*)
- func_verbose "Extracting $my_xabs"
- # Do not bother doing anything if just a dry run
- $opt_dry_run || {
- darwin_orig_dir=`pwd`
- cd $my_xdir || exit $?
- darwin_archive=$my_xabs
- darwin_curdir=`pwd`
- darwin_base_archive=`basename "$darwin_archive"`
- darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
- if test -n "$darwin_arches"; then
- darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
- darwin_arch=
- func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
- for darwin_arch in $darwin_arches ; do
- func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
- cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- func_extract_an_archive "`pwd`" "${darwin_base_archive}"
- cd "$darwin_curdir"
- $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
- done # $darwin_arches
- ## Okay now we've a bunch of thin objects, gotta fatten them up :)
- darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
- darwin_file=
- darwin_files=
- for darwin_file in $darwin_filelist; do
- darwin_files=`find unfat-$$ -name $darwin_file -print | $NL2SP`
- $LIPO -create -output "$darwin_file" $darwin_files
- done # $darwin_filelist
- $RM -rf unfat-$$
- cd "$darwin_orig_dir"
- else
- cd $darwin_orig_dir
- func_extract_an_archive "$my_xdir" "$my_xabs"
- fi # $darwin_arches
- } # !$opt_dry_run
- ;;
- *)
- func_extract_an_archive "$my_xdir" "$my_xabs"
- ;;
- esac
- my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | $NL2SP`
- done
-
- func_extract_archives_result="$my_oldobjs"
-}
-
-
-
-# func_emit_wrapper_part1 [arg=no]
-#
-# Emit the first part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part1 ()
-{
- func_emit_wrapper_part1_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_part1_arg1=$1
- fi
-
- $ECHO "\
-#! $SHELL
-
-# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# The $output program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed='${SED} -e 1s/^X//'
-sed_quote_subst='$sed_quote_subst'
-
-# Be Bourne compatible
-if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '\${1+\"\$@\"}'='\"\$@\"'
- setopt NO_GLOB_SUBST
-else
- case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=\"$relink_command\"
-
-# This environment variable determines our operation mode.
-if test \"\$libtool_install_magic\" = \"$magic\"; then
- # install mode needs the following variables:
- generated_by_libtool_version='$macro_version'
- notinst_deplibs='$notinst_deplibs'
-else
- # When we are sourced in execute mode, \$file and \$ECHO are already set.
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- ECHO=\"$qecho\"
- file=\"\$0\"
- # Make sure echo works.
- if test \"X\$1\" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
- elif test \"X\`{ \$ECHO '\t'; } 2>/dev/null\`\" = 'X\t'; then
- # Yippee, \$ECHO works!
- :
- else
- # Restart under the correct shell, and then maybe \$ECHO will work.
- exec $SHELL \"\$0\" --no-reexec \${1+\"\$@\"}
- fi
- fi\
-"
- $ECHO "\
-
- # Find the directory that this script lives in.
- thisdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*$%%'\`
- test \"x\$thisdir\" = \"x\$file\" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=\`ls -ld \"\$file\" | ${SED} -n 's/.*-> //p'\`
- while test -n \"\$file\"; do
- destdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*\$%%'\`
-
- # If there was a directory component, then change thisdir.
- if test \"x\$destdir\" != \"x\$file\"; then
- case \"\$destdir\" in
- [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
- *) thisdir=\"\$thisdir/\$destdir\" ;;
- esac
- fi
-
- file=\`\$ECHO \"X\$file\" | \$Xsed -e 's%^.*/%%'\`
- file=\`ls -ld \"\$thisdir/\$file\" | ${SED} -n 's/.*-> //p'\`
- done
-"
-}
-# end: func_emit_wrapper_part1
-
-# func_emit_wrapper_part2 [arg=no]
-#
-# Emit the second part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part2 ()
-{
- func_emit_wrapper_part2_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_part2_arg1=$1
- fi
-
- $ECHO "\
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_part2_arg1
- if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
- # special case for '.'
- if test \"\$thisdir\" = \".\"; then
- thisdir=\`pwd\`
- fi
- # remove .libs from thisdir
- case \"\$thisdir\" in
- *[\\\\/]$objdir ) thisdir=\`\$ECHO \"X\$thisdir\" | \$Xsed -e 's%[\\\\/][^\\\\/]*$%%'\` ;;
- $objdir ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=\`cd \"\$thisdir\" && pwd\`
- test -n \"\$absdir\" && thisdir=\"\$absdir\"
-"
-
- if test "$fast_install" = yes; then
- $ECHO "\
- program=lt-'$outputname'$exeext
- progdir=\"\$thisdir/$objdir\"
-
- if test ! -f \"\$progdir/\$program\" ||
- { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
- test \"X\$file\" != \"X\$progdir/\$program\"; }; then
-
- file=\"\$\$-\$program\"
-
- if test ! -d \"\$progdir\"; then
- $MKDIR \"\$progdir\"
- else
- $RM \"\$progdir/\$file\"
- fi"
-
- $ECHO "\
-
- # relink executable if necessary
- if test -n \"\$relink_command\"; then
- if relink_command_output=\`eval \$relink_command 2>&1\`; then :
- else
- $ECHO \"\$relink_command_output\" >&2
- $RM \"\$progdir/\$file\"
- exit 1
- fi
- fi
-
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
- { $RM \"\$progdir/\$program\";
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
- $RM \"\$progdir/\$file\"
- fi"
- else
- $ECHO "\
- program='$outputname'
- progdir=\"\$thisdir/$objdir\"
-"
- fi
-
- $ECHO "\
-
- if test -f \"\$progdir/\$program\"; then"
-
- # Export our shlibpath_var if we have one.
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- $ECHO "\
- # Add our own library path to $shlibpath_var
- $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
-
- # Some systems cannot cope with colon-terminated $shlibpath_var
- # The second colon is a workaround for a bug in BeOS R4 sed
- $shlibpath_var=\`\$ECHO \"X\$$shlibpath_var\" | \$Xsed -e 's/::*\$//'\`
-
- export $shlibpath_var
-"
- fi
-
- # fixup the dll searchpath if we need to.
- if test -n "$dllsearchpath"; then
- $ECHO "\
- # Add the dll search path components to the executable PATH
- PATH=$dllsearchpath:\$PATH
-"
- fi
-
- $ECHO "\
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- # Run the actual program with our arguments.
-"
- case $host in
- # Backslashes separate directories on plain windows
- *-*-mingw | *-*-os2* | *-cegcc*)
- $ECHO "\
- exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
-"
- ;;
-
- *)
- $ECHO "\
- exec \"\$progdir/\$program\" \${1+\"\$@\"}
-"
- ;;
- esac
- $ECHO "\
- \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
- exit 1
- fi
- else
- # The program doesn't exist.
- \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
- \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
- $ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
- exit 1
- fi
-fi\
-"
-}
-# end: func_emit_wrapper_part2
-
-
-# func_emit_wrapper [arg=no]
-#
-# Emit a libtool wrapper script on stdout.
-# Don't directly open a file because we may want to
-# incorporate the script contents within a cygwin/mingw
-# wrapper executable. Must ONLY be called from within
-# func_mode_link because it depends on a number of variables
-# set therein.
-#
-# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
-# variable will take. If 'yes', then the emitted script
-# will assume that the directory in which it is stored is
-# the $objdir directory. This is a cygwin/mingw-specific
-# behavior.
-func_emit_wrapper ()
-{
- func_emit_wrapper_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_arg1=$1
- fi
-
- # split this up so that func_emit_cwrapperexe_src
- # can call each part independently.
- func_emit_wrapper_part1 "${func_emit_wrapper_arg1}"
- func_emit_wrapper_part2 "${func_emit_wrapper_arg1}"
-}
-
-
-# func_to_host_path arg
-#
-# Convert paths to host format when used with build tools.
-# Intended for use with "native" mingw (where libtool itself
-# is running under the msys shell), or in the following cross-
-# build environments:
-# $build $host
-# mingw (msys) mingw [e.g. native]
-# cygwin mingw
-# *nix + wine mingw
-# where wine is equipped with the `winepath' executable.
-# In the native mingw case, the (msys) shell automatically
-# converts paths for any non-msys applications it launches,
-# but that facility isn't available from inside the cwrapper.
-# Similar accommodations are necessary for $host mingw and
-# $build cygwin. Calling this function does no harm for other
-# $host/$build combinations not listed above.
-#
-# ARG is the path (on $build) that should be converted to
-# the proper representation for $host. The result is stored
-# in $func_to_host_path_result.
-func_to_host_path ()
-{
- func_to_host_path_result="$1"
- if test -n "$1" ; then
- case $host in
- *mingw* )
- lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
- case $build in
- *mingw* ) # actually, msys
- # awkward: cmd appends spaces to result
- lt_sed_strip_trailing_spaces="s/[ ]*\$//"
- func_to_host_path_tmp1=`( cmd //c echo "$1" |\
- $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- *cygwin* )
- func_to_host_path_tmp1=`cygpath -w "$1"`
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- * )
- # Unfortunately, winepath does not exit with a non-zero
- # error code, so we are forced to check the contents of
- # stdout. On the other hand, if the command is not
- # found, the shell will set an exit code of 127 and print
- # *an error message* to stdout. So we must check for both
- # error code of zero AND non-empty stdout, which explains
- # the odd construction:
- func_to_host_path_tmp1=`winepath -w "$1" 2>/dev/null`
- if test "$?" -eq 0 && test -n "${func_to_host_path_tmp1}"; then
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- else
- # Allow warning below.
- func_to_host_path_result=""
- fi
- ;;
- esac
- if test -z "$func_to_host_path_result" ; then
- func_error "Could not determine host path corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback:
- func_to_host_path_result="$1"
- fi
- ;;
- esac
- fi
-}
-# end: func_to_host_path
-
-# func_to_host_pathlist arg
-#
-# Convert pathlists to host format when used with build tools.
-# See func_to_host_path(), above. This function supports the
-# following $build/$host combinations (but does no harm for
-# combinations not listed here):
-# $build $host
-# mingw (msys) mingw [e.g. native]
-# cygwin mingw
-# *nix + wine mingw
-#
-# Path separators are also converted from $build format to
-# $host format. If ARG begins or ends with a path separator
-# character, it is preserved (but converted to $host format)
-# on output.
-#
-# ARG is a pathlist (on $build) that should be converted to
-# the proper representation on $host. The result is stored
-# in $func_to_host_pathlist_result.
-func_to_host_pathlist ()
-{
- func_to_host_pathlist_result="$1"
- if test -n "$1" ; then
- case $host in
- *mingw* )
- lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
- # Remove leading and trailing path separator characters from
- # ARG. msys behavior is inconsistent here, cygpath turns them
- # into '.;' and ';.', and winepath ignores them completely.
- func_to_host_pathlist_tmp2="$1"
- # Once set for this call, this variable should not be
- # reassigned. It is used in tha fallback case.
- func_to_host_pathlist_tmp1=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e 's|^:*||' -e 's|:*$||'`
- case $build in
- *mingw* ) # Actually, msys.
- # Awkward: cmd appends spaces to result.
- lt_sed_strip_trailing_spaces="s/[ ]*\$//"
- func_to_host_pathlist_tmp2=`( cmd //c echo "$func_to_host_pathlist_tmp1" |\
- $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- *cygwin* )
- func_to_host_pathlist_tmp2=`cygpath -w -p "$func_to_host_pathlist_tmp1"`
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- * )
- # unfortunately, winepath doesn't convert pathlists
- func_to_host_pathlist_result=""
- func_to_host_pathlist_oldIFS=$IFS
- IFS=:
- for func_to_host_pathlist_f in $func_to_host_pathlist_tmp1 ; do
- IFS=$func_to_host_pathlist_oldIFS
- if test -n "$func_to_host_pathlist_f" ; then
- func_to_host_path "$func_to_host_pathlist_f"
- if test -n "$func_to_host_path_result" ; then
- if test -z "$func_to_host_pathlist_result" ; then
- func_to_host_pathlist_result="$func_to_host_path_result"
- else
- func_to_host_pathlist_result="$func_to_host_pathlist_result;$func_to_host_path_result"
- fi
- fi
- fi
- IFS=:
- done
- IFS=$func_to_host_pathlist_oldIFS
- ;;
- esac
- if test -z "$func_to_host_pathlist_result" ; then
- func_error "Could not determine the host path(s) corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback. This may break if $1 contains DOS-style drive
- # specifications. The fix is not to complicate the expression
- # below, but for the user to provide a working wine installation
- # with winepath so that path translation in the cross-to-mingw
- # case works properly.
- lt_replace_pathsep_nix_to_dos="s|:|;|g"
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp1" |\
- $SED -e "$lt_replace_pathsep_nix_to_dos"`
- fi
- # Now, add the leading and trailing path separators back
- case "$1" in
- :* ) func_to_host_pathlist_result=";$func_to_host_pathlist_result"
- ;;
- esac
- case "$1" in
- *: ) func_to_host_pathlist_result="$func_to_host_pathlist_result;"
- ;;
- esac
- ;;
- esac
- fi
-}
-# end: func_to_host_pathlist
-
-# func_emit_cwrapperexe_src
-# emit the source code for a wrapper executable on stdout
-# Must ONLY be called from within func_mode_link because
-# it depends on a number of variable set therein.
-func_emit_cwrapperexe_src ()
-{
- cat <<EOF
-
-/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
- Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-
- The $output program cannot be directly executed until all the libtool
- libraries that it depends on are installed.
-
- This wrapper executable should never be moved out of the build directory.
- If it is, it will not operate correctly.
-
- Currently, it simply execs the wrapper *script* "$SHELL $output",
- but could eventually absorb all of the scripts functionality and
- exec $objdir/$outputname directly.
-*/
-EOF
- cat <<"EOF"
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-# include <direct.h>
-# include <process.h>
-# include <io.h>
-# define setmode _setmode
-#else
-# include <unistd.h>
-# include <stdint.h>
-# ifdef __CYGWIN__
-# include <io.h>
-# define HAVE_SETENV
-# ifdef __STRICT_ANSI__
-char *realpath (const char *, char *);
-int putenv (char *);
-int setenv (const char *, const char *, int);
-# endif
-# endif
-#endif
-#include <malloc.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#if defined(PATH_MAX)
-# define LT_PATHMAX PATH_MAX
-#elif defined(MAXPATHLEN)
-# define LT_PATHMAX MAXPATHLEN
-#else
-# define LT_PATHMAX 1024
-#endif
-
-#ifndef S_IXOTH
-# define S_IXOTH 0
-#endif
-#ifndef S_IXGRP
-# define S_IXGRP 0
-#endif
-
-#ifdef _MSC_VER
-# define S_IXUSR _S_IEXEC
-# define stat _stat
-# ifndef _INTPTR_T_DEFINED
-# define intptr_t int
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR
-# define DIR_SEPARATOR '/'
-# define PATH_SEPARATOR ':'
-#endif
-
-#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
- defined (__OS2__)
-# define HAVE_DOS_BASED_FILE_SYSTEM
-# define FOPEN_WB "wb"
-# ifndef DIR_SEPARATOR_2
-# define DIR_SEPARATOR_2 '\\'
-# endif
-# ifndef PATH_SEPARATOR_2
-# define PATH_SEPARATOR_2 ';'
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR_2
-# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
-#else /* DIR_SEPARATOR_2 */
-# define IS_DIR_SEPARATOR(ch) \
- (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
-#endif /* DIR_SEPARATOR_2 */
-
-#ifndef PATH_SEPARATOR_2
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
-#else /* PATH_SEPARATOR_2 */
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
-#endif /* PATH_SEPARATOR_2 */
-
-#ifdef __CYGWIN__
-# define FOPEN_WB "wb"
-#endif
-
-#ifndef FOPEN_WB
-# define FOPEN_WB "w"
-#endif
-#ifndef _O_BINARY
-# define _O_BINARY 0
-#endif
-
-#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
-#define XFREE(stale) do { \
- if (stale) { free ((void *) stale); stale = 0; } \
-} while (0)
-
-#undef LTWRAPPER_DEBUGPRINTF
-#if defined DEBUGWRAPPER
-# define LTWRAPPER_DEBUGPRINTF(args) ltwrapper_debugprintf args
-static void
-ltwrapper_debugprintf (const char *fmt, ...)
-{
- va_list args;
- va_start (args, fmt);
- (void) vfprintf (stderr, fmt, args);
- va_end (args);
-}
-#else
-# define LTWRAPPER_DEBUGPRINTF(args)
-#endif
-
-const char *program_name = NULL;
-
-void *xmalloc (size_t num);
-char *xstrdup (const char *string);
-const char *base_name (const char *name);
-char *find_executable (const char *wrapper);
-char *chase_symlinks (const char *pathspec);
-int make_executable (const char *path);
-int check_executable (const char *path);
-char *strendzap (char *str, const char *pat);
-void lt_fatal (const char *message, ...);
-void lt_setenv (const char *name, const char *value);
-char *lt_extend_str (const char *orig_value, const char *add, int to_end);
-void lt_opt_process_env_set (const char *arg);
-void lt_opt_process_env_prepend (const char *arg);
-void lt_opt_process_env_append (const char *arg);
-int lt_split_name_value (const char *arg, char** name, char** value);
-void lt_update_exe_path (const char *name, const char *value);
-void lt_update_lib_path (const char *name, const char *value);
-
-static const char *script_text_part1 =
-EOF
-
- func_emit_wrapper_part1 yes |
- $SED -e 's/\([\\"]\)/\\\1/g' \
- -e 's/^/ "/' -e 's/$/\\n"/'
- echo ";"
- cat <<EOF
-
-static const char *script_text_part2 =
-EOF
- func_emit_wrapper_part2 yes |
- $SED -e 's/\([\\"]\)/\\\1/g' \
- -e 's/^/ "/' -e 's/$/\\n"/'
- echo ";"
-
- cat <<EOF
-const char * MAGIC_EXE = "$magic_exe";
-const char * LIB_PATH_VARNAME = "$shlibpath_var";
-EOF
-
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- func_to_host_pathlist "$temp_rpath"
- cat <<EOF
-const char * LIB_PATH_VALUE = "$func_to_host_pathlist_result";
-EOF
- else
- cat <<"EOF"
-const char * LIB_PATH_VALUE = "";
-EOF
- fi
-
- if test -n "$dllsearchpath"; then
- func_to_host_pathlist "$dllsearchpath:"
- cat <<EOF
-const char * EXE_PATH_VARNAME = "PATH";
-const char * EXE_PATH_VALUE = "$func_to_host_pathlist_result";
-EOF
- else
- cat <<"EOF"
-const char * EXE_PATH_VARNAME = "";
-const char * EXE_PATH_VALUE = "";
-EOF
- fi
-
- if test "$fast_install" = yes; then
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
-EOF
- else
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
-EOF
- fi
-
-
- cat <<"EOF"
-
-#define LTWRAPPER_OPTION_PREFIX "--lt-"
-#define LTWRAPPER_OPTION_PREFIX_LENGTH 5
-
-static const size_t opt_prefix_len = LTWRAPPER_OPTION_PREFIX_LENGTH;
-static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
-
-static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script";
-
-static const size_t env_set_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 7;
-static const char *env_set_opt = LTWRAPPER_OPTION_PREFIX "env-set";
- /* argument is putenv-style "foo=bar", value of foo is set to bar */
-
-static const size_t env_prepend_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 11;
-static const char *env_prepend_opt = LTWRAPPER_OPTION_PREFIX "env-prepend";
- /* argument is putenv-style "foo=bar", new value of foo is bar${foo} */
-
-static const size_t env_append_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 10;
-static const char *env_append_opt = LTWRAPPER_OPTION_PREFIX "env-append";
- /* argument is putenv-style "foo=bar", new value of foo is ${foo}bar */
-
-int
-main (int argc, char *argv[])
-{
- char **newargz;
- int newargc;
- char *tmp_pathspec;
- char *actual_cwrapper_path;
- char *actual_cwrapper_name;
- char *target_name;
- char *lt_argv_zero;
- intptr_t rval = 127;
-
- int i;
-
- program_name = (char *) xstrdup (base_name (argv[0]));
- LTWRAPPER_DEBUGPRINTF (("(main) argv[0] : %s\n", argv[0]));
- LTWRAPPER_DEBUGPRINTF (("(main) program_name : %s\n", program_name));
-
- /* very simple arg parsing; don't want to rely on getopt */
- for (i = 1; i < argc; i++)
- {
- if (strcmp (argv[i], dumpscript_opt) == 0)
- {
-EOF
- case "$host" in
- *mingw* | *cygwin* )
- # make stdout use "unix" line endings
- echo " setmode(1,_O_BINARY);"
- ;;
- esac
-
- cat <<"EOF"
- printf ("%s", script_text_part1);
- printf ("%s", script_text_part2);
- return 0;
- }
- }
-
- newargz = XMALLOC (char *, argc + 1);
- tmp_pathspec = find_executable (argv[0]);
- if (tmp_pathspec == NULL)
- lt_fatal ("Couldn't find %s", argv[0]);
- LTWRAPPER_DEBUGPRINTF (("(main) found exe (before symlink chase) at : %s\n",
- tmp_pathspec));
-
- actual_cwrapper_path = chase_symlinks (tmp_pathspec);
- LTWRAPPER_DEBUGPRINTF (("(main) found exe (after symlink chase) at : %s\n",
- actual_cwrapper_path));
- XFREE (tmp_pathspec);
-
- actual_cwrapper_name = xstrdup( base_name (actual_cwrapper_path));
- strendzap (actual_cwrapper_path, actual_cwrapper_name);
-
- /* wrapper name transforms */
- strendzap (actual_cwrapper_name, ".exe");
- tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
- XFREE (actual_cwrapper_name);
- actual_cwrapper_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- /* target_name transforms -- use actual target program name; might have lt- prefix */
- target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
- strendzap (target_name, ".exe");
- tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
- XFREE (target_name);
- target_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- LTWRAPPER_DEBUGPRINTF (("(main) libtool target name: %s\n",
- target_name));
-EOF
-
- cat <<EOF
- newargz[0] =
- XMALLOC (char, (strlen (actual_cwrapper_path) +
- strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
- strcpy (newargz[0], actual_cwrapper_path);
- strcat (newargz[0], "$objdir");
- strcat (newargz[0], "/");
-EOF
-
- cat <<"EOF"
- /* stop here, and copy so we don't have to do this twice */
- tmp_pathspec = xstrdup (newargz[0]);
-
- /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
- strcat (newargz[0], actual_cwrapper_name);
-
- /* DO want the lt- prefix here if it exists, so use target_name */
- lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
- XFREE (tmp_pathspec);
- tmp_pathspec = NULL;
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- {
- char* p;
- while ((p = strchr (newargz[0], '\\')) != NULL)
- {
- *p = '/';
- }
- while ((p = strchr (lt_argv_zero, '\\')) != NULL)
- {
- *p = '/';
- }
- }
-EOF
- ;;
- esac
-
- cat <<"EOF"
- XFREE (target_name);
- XFREE (actual_cwrapper_path);
- XFREE (actual_cwrapper_name);
-
- lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
- lt_setenv ("DUALCASE", "1"); /* for MSK sh */
- lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
- lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
-
- newargc=0;
- for (i = 1; i < argc; i++)
- {
- if (strncmp (argv[i], env_set_opt, env_set_opt_len) == 0)
- {
- if (argv[i][env_set_opt_len] == '=')
- {
- const char *p = argv[i] + env_set_opt_len + 1;
- lt_opt_process_env_set (p);
- }
- else if (argv[i][env_set_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_set (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_set_opt);
- continue;
- }
- if (strncmp (argv[i], env_prepend_opt, env_prepend_opt_len) == 0)
- {
- if (argv[i][env_prepend_opt_len] == '=')
- {
- const char *p = argv[i] + env_prepend_opt_len + 1;
- lt_opt_process_env_prepend (p);
- }
- else if (argv[i][env_prepend_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_prepend (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_prepend_opt);
- continue;
- }
- if (strncmp (argv[i], env_append_opt, env_append_opt_len) == 0)
- {
- if (argv[i][env_append_opt_len] == '=')
- {
- const char *p = argv[i] + env_append_opt_len + 1;
- lt_opt_process_env_append (p);
- }
- else if (argv[i][env_append_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_append (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_append_opt);
- continue;
- }
- if (strncmp (argv[i], ltwrapper_option_prefix, opt_prefix_len) == 0)
- {
- /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
- namespace, but it is not one of the ones we know about and
- have already dealt with, above (inluding dump-script), then
- report an error. Otherwise, targets might begin to believe
- they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
- namespace. The first time any user complains about this, we'll
- need to make LTWRAPPER_OPTION_PREFIX a configure-time option
- or a configure.ac-settable value.
- */
- lt_fatal ("Unrecognized option in %s namespace: '%s'",
- ltwrapper_option_prefix, argv[i]);
- }
- /* otherwise ... */
- newargz[++newargc] = xstrdup (argv[i]);
- }
- newargz[++newargc] = NULL;
-
- LTWRAPPER_DEBUGPRINTF (("(main) lt_argv_zero : %s\n", (lt_argv_zero ? lt_argv_zero : "<NULL>")));
- for (i = 0; i < newargc; i++)
- {
- LTWRAPPER_DEBUGPRINTF (("(main) newargz[%d] : %s\n", i, (newargz[i] ? newargz[i] : "<NULL>")));
- }
-
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- /* execv doesn't actually work on mingw as expected on unix */
- rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
- if (rval == -1)
- {
- /* failed to start process */
- LTWRAPPER_DEBUGPRINTF (("(main) failed to launch target \"%s\": errno = %d\n", lt_argv_zero, errno));
- return 127;
- }
- return rval;
-EOF
- ;;
- *)
- cat <<"EOF"
- execv (lt_argv_zero, newargz);
- return rval; /* =127, but avoids unused variable warning */
-EOF
- ;;
- esac
-
- cat <<"EOF"
-}
-
-void *
-xmalloc (size_t num)
-{
- void *p = (void *) malloc (num);
- if (!p)
- lt_fatal ("Memory exhausted");
-
- return p;
-}
-
-char *
-xstrdup (const char *string)
-{
- return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
- string) : NULL;
-}
-
-const char *
-base_name (const char *name)
-{
- const char *base;
-
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- /* Skip over the disk name in MSDOS pathnames. */
- if (isalpha ((unsigned char) name[0]) && name[1] == ':')
- name += 2;
-#endif
-
- for (base = name; *name; name++)
- if (IS_DIR_SEPARATOR (*name))
- base = name + 1;
- return base;
-}
-
-int
-check_executable (const char *path)
-{
- struct stat st;
-
- LTWRAPPER_DEBUGPRINTF (("(check_executable) : %s\n",
- path ? (*path ? path : "EMPTY!") : "NULL!"));
- if ((!path) || (!*path))
- return 0;
-
- if ((stat (path, &st) >= 0)
- && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
- return 1;
- else
- return 0;
-}
-
-int
-make_executable (const char *path)
-{
- int rval = 0;
- struct stat st;
-
- LTWRAPPER_DEBUGPRINTF (("(make_executable) : %s\n",
- path ? (*path ? path : "EMPTY!") : "NULL!"));
- if ((!path) || (!*path))
- return 0;
-
- if (stat (path, &st) >= 0)
- {
- rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
- }
- return rval;
-}
-
-/* Searches for the full path of the wrapper. Returns
- newly allocated full path name if found, NULL otherwise
- Does not chase symlinks, even on platforms that support them.
-*/
-char *
-find_executable (const char *wrapper)
-{
- int has_slash = 0;
- const char *p;
- const char *p_next;
- /* static buffer for getcwd */
- char tmp[LT_PATHMAX + 1];
- int tmp_len;
- char *concat_name;
-
- LTWRAPPER_DEBUGPRINTF (("(find_executable) : %s\n",
- wrapper ? (*wrapper ? wrapper : "EMPTY!") : "NULL!"));
-
- if ((wrapper == NULL) || (*wrapper == '\0'))
- return NULL;
-
- /* Absolute path? */
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- else
- {
-#endif
- if (IS_DIR_SEPARATOR (wrapper[0]))
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- }
-#endif
-
- for (p = wrapper; *p; p++)
- if (*p == '/')
- {
- has_slash = 1;
- break;
- }
- if (!has_slash)
- {
- /* no slashes; search PATH */
- const char *path = getenv ("PATH");
- if (path != NULL)
- {
- for (p = path; *p; p = p_next)
- {
- const char *q;
- size_t p_len;
- for (q = p; *q; q++)
- if (IS_PATH_SEPARATOR (*q))
- break;
- p_len = q - p;
- p_next = (*q == '\0' ? q : q + 1);
- if (p_len == 0)
- {
- /* empty path: current directory */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal ("getcwd failed");
- tmp_len = strlen (tmp);
- concat_name =
- XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
- }
- else
- {
- concat_name =
- XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, p, p_len);
- concat_name[p_len] = '/';
- strcpy (concat_name + p_len + 1, wrapper);
- }
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- }
- /* not found in PATH; assume curdir */
- }
- /* Relative path | not found in path: prepend cwd */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal ("getcwd failed");
- tmp_len = strlen (tmp);
- concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
-
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- return NULL;
-}
-
-char *
-chase_symlinks (const char *pathspec)
-{
-#ifndef S_ISLNK
- return xstrdup (pathspec);
-#else
- char buf[LT_PATHMAX];
- struct stat s;
- char *tmp_pathspec = xstrdup (pathspec);
- char *p;
- int has_symlinks = 0;
- while (strlen (tmp_pathspec) && !has_symlinks)
- {
- LTWRAPPER_DEBUGPRINTF (("checking path component for symlinks: %s\n",
- tmp_pathspec));
- if (lstat (tmp_pathspec, &s) == 0)
- {
- if (S_ISLNK (s.st_mode) != 0)
- {
- has_symlinks = 1;
- break;
- }
-
- /* search backwards for last DIR_SEPARATOR */
- p = tmp_pathspec + strlen (tmp_pathspec) - 1;
- while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- p--;
- if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- {
- /* no more DIR_SEPARATORS left */
- break;
- }
- *p = '\0';
- }
- else
- {
- char *errstr = strerror (errno);
- lt_fatal ("Error accessing file %s (%s)", tmp_pathspec, errstr);
- }
- }
- XFREE (tmp_pathspec);
-
- if (!has_symlinks)
- {
- return xstrdup (pathspec);
- }
-
- tmp_pathspec = realpath (pathspec, buf);
- if (tmp_pathspec == 0)
- {
- lt_fatal ("Could not follow symlinks for %s", pathspec);
- }
- return xstrdup (tmp_pathspec);
-#endif
-}
-
-char *
-strendzap (char *str, const char *pat)
-{
- size_t len, patlen;
-
- assert (str != NULL);
- assert (pat != NULL);
-
- len = strlen (str);
- patlen = strlen (pat);
-
- if (patlen <= len)
- {
- str += len - patlen;
- if (strcmp (str, pat) == 0)
- *str = '\0';
- }
- return str;
-}
-
-static void
-lt_error_core (int exit_status, const char *mode,
- const char *message, va_list ap)
-{
- fprintf (stderr, "%s: %s: ", program_name, mode);
- vfprintf (stderr, message, ap);
- fprintf (stderr, ".\n");
-
- if (exit_status >= 0)
- exit (exit_status);
-}
-
-void
-lt_fatal (const char *message, ...)
-{
- va_list ap;
- va_start (ap, message);
- lt_error_core (EXIT_FAILURE, "FATAL", message, ap);
- va_end (ap);
-}
-
-void
-lt_setenv (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_setenv) setting '%s' to '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
- {
-#ifdef HAVE_SETENV
- /* always make a copy, for consistency with !HAVE_SETENV */
- char *str = xstrdup (value);
- setenv (name, str, 1);
-#else
- int len = strlen (name) + 1 + strlen (value) + 1;
- char *str = XMALLOC (char, len);
- sprintf (str, "%s=%s", name, value);
- if (putenv (str) != EXIT_SUCCESS)
- {
- XFREE (str);
- }
-#endif
- }
-}
-
-char *
-lt_extend_str (const char *orig_value, const char *add, int to_end)
-{
- char *new_value;
- if (orig_value && *orig_value)
- {
- int orig_value_len = strlen (orig_value);
- int add_len = strlen (add);
- new_value = XMALLOC (char, add_len + orig_value_len + 1);
- if (to_end)
- {
- strcpy (new_value, orig_value);
- strcpy (new_value + orig_value_len, add);
- }
- else
- {
- strcpy (new_value, add);
- strcpy (new_value + add_len, orig_value);
- }
- }
- else
- {
- new_value = xstrdup (add);
- }
- return new_value;
-}
-
-int
-lt_split_name_value (const char *arg, char** name, char** value)
-{
- const char *p;
- int len;
- if (!arg || !*arg)
- return 1;
-
- p = strchr (arg, (int)'=');
-
- if (!p)
- return 1;
-
- *value = xstrdup (++p);
-
- len = strlen (arg) - strlen (*value);
- *name = XMALLOC (char, len);
- strncpy (*name, arg, len-1);
- (*name)[len - 1] = '\0';
-
- return 0;
-}
-
-void
-lt_opt_process_env_set (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_set_opt, arg);
- }
-
- lt_setenv (name, value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_opt_process_env_prepend (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
- char *new_value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_prepend_opt, arg);
- }
-
- new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_opt_process_env_append (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
- char *new_value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_append_opt, arg);
- }
-
- new_value = lt_extend_str (getenv (name), value, 1);
- lt_setenv (name, new_value);
- XFREE (new_value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_update_exe_path (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- /* some systems can't cope with a ':'-terminated path #' */
- int len = strlen (new_value);
- while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
- {
- new_value[len-1] = '\0';
- }
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-void
-lt_update_lib_path (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-
-EOF
-}
-# end: func_emit_cwrapperexe_src
-
-# func_mode_link arg...
-func_mode_link ()
-{
- $opt_debug
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- # It is impossible to link a dll without this setting, and
- # we shouldn't force the makefile maintainer to figure out
- # which system we are compiling for in order to pass an extra
- # flag for every libtool invocation.
- # allow_undefined=no
-
- # FIXME: Unfortunately, there are problems with the above when trying
- # to make a dll which has undefined symbols, in which case not
- # even a static library is built. For now, we need to specify
- # -no-undefined on the libtool link line when we can be certain
- # that all symbols are satisfied, otherwise we get a static library.
- allow_undefined=yes
- ;;
- *)
- allow_undefined=yes
- ;;
- esac
- libtool_args=$nonopt
- base_compile="$nonopt $@"
- compile_command=$nonopt
- finalize_command=$nonopt
-
- compile_rpath=
- finalize_rpath=
- compile_shlibpath=
- finalize_shlibpath=
- convenience=
- old_convenience=
- deplibs=
- old_deplibs=
- compiler_flags=
- linker_flags=
- dllsearchpath=
- lib_search_path=`pwd`
- inst_prefix_dir=
- new_inherited_linker_flags=
-
- avoid_version=no
- dlfiles=
- dlprefiles=
- dlself=no
- export_dynamic=no
- export_symbols=
- export_symbols_regex=
- generated=
- libobjs=
- ltlibs=
- module=no
- no_install=no
- objs=
- non_pic_objects=
- precious_files_regex=
- prefer_static_libs=no
- preload=no
- prev=
- prevarg=
- release=
- rpath=
- xrpath=
- perm_rpath=
- temp_rpath=
- thread_safe=no
- vinfo=
- vinfo_number=no
- weak_libs=
- single_module="${wl}-single_module"
- func_infer_tag $base_compile
-
- # We need to know -static, to get the right output filenames.
- for arg
- do
- case $arg in
- -shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
- build_old_libs=no
- break
- ;;
- -all-static | -static | -static-libtool-libs)
- case $arg in
- -all-static)
- if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
- func_warning "complete static linking is impossible in this configuration"
- fi
- if test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- -static)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=built
- ;;
- -static-libtool-libs)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- esac
- build_libtool_libs=no
- build_old_libs=yes
- break
- ;;
- esac
- done
-
- # See if our shared archives depend on static archives.
- test -n "$old_archive_from_new_cmds" && build_old_libs=yes
-
- # Go through the arguments, transforming them on the way.
- while test "$#" -gt 0; do
- arg="$1"
- shift
- func_quote_for_eval "$arg"
- qarg=$func_quote_for_eval_unquoted_result
- func_append libtool_args " $func_quote_for_eval_result"
-
- # If the previous option needs an argument, assign it.
- if test -n "$prev"; then
- case $prev in
- output)
- func_append compile_command " @OUTPUT@"
- func_append finalize_command " @OUTPUT@"
- ;;
- esac
-
- case $prev in
- dlfiles|dlprefiles)
- if test "$preload" = no; then
- # Add the symbol object into the linking commands.
- func_append compile_command " @SYMFILE@"
- func_append finalize_command " @SYMFILE@"
- preload=yes
- fi
- case $arg in
- *.la | *.lo) ;; # We handle these cases below.
- force)
- if test "$dlself" = no; then
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- self)
- if test "$prev" = dlprefiles; then
- dlself=yes
- elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
- dlself=yes
- else
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- *)
- if test "$prev" = dlfiles; then
- dlfiles="$dlfiles $arg"
- else
- dlprefiles="$dlprefiles $arg"
- fi
- prev=
- continue
- ;;
- esac
- ;;
- expsyms)
- export_symbols="$arg"
- test -f "$arg" \
- || func_fatal_error "symbol file \`$arg' does not exist"
- prev=
- continue
- ;;
- expsyms_regex)
- export_symbols_regex="$arg"
- prev=
- continue
- ;;
- framework)
- case $host in
- *-*-darwin*)
- case "$deplibs " in
- *" $qarg.ltframework "*) ;;
- *) deplibs="$deplibs $qarg.ltframework" # this is fixed later
- ;;
- esac
- ;;
- esac
- prev=
- continue
- ;;
- inst_prefix)
- inst_prefix_dir="$arg"
- prev=
- continue
- ;;
- objectlist)
- if test -f "$arg"; then
- save_arg=$arg
- moreargs=
- for fil in `cat "$save_arg"`
- do
-# moreargs="$moreargs $fil"
- arg=$fil
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- if test "$pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
-
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
- dlfiles="$dlfiles $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
- # Preload the old-style object.
- dlprefiles="$dlprefiles $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
-
- # Non-PIC object.
- if test "$non_pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "\`$arg' is not a valid libtool object"
- fi
- fi
- done
- else
- func_fatal_error "link input file \`$arg' does not exist"
- fi
- arg=$save_arg
- prev=
- continue
- ;;
- precious_regex)
- precious_files_regex="$arg"
- prev=
- continue
- ;;
- release)
- release="-$arg"
- prev=
- continue
- ;;
- rpath | xrpath)
- # We need an absolute path.
- case $arg in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- if test "$prev" = rpath; then
- case "$rpath " in
- *" $arg "*) ;;
- *) rpath="$rpath $arg" ;;
- esac
- else
- case "$xrpath " in
- *" $arg "*) ;;
- *) xrpath="$xrpath $arg" ;;
- esac
- fi
- prev=
- continue
- ;;
- shrext)
- shrext_cmds="$arg"
- prev=
- continue
- ;;
- weak)
- weak_libs="$weak_libs $arg"
- prev=
- continue
- ;;
- xcclinker)
- linker_flags="$linker_flags $qarg"
- compiler_flags="$compiler_flags $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xcompiler)
- compiler_flags="$compiler_flags $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xlinker)
- linker_flags="$linker_flags $qarg"
- compiler_flags="$compiler_flags $wl$qarg"
- prev=
- func_append compile_command " $wl$qarg"
- func_append finalize_command " $wl$qarg"
- continue
- ;;
- *)
- eval "$prev=\"\$arg\""
- prev=
- continue
- ;;
- esac
- fi # test -n "$prev"
-
- prevarg="$arg"
-
- case $arg in
- -all-static)
- if test -n "$link_static_flag"; then
- # See comment for -static flag below, for more details.
- func_append compile_command " $link_static_flag"
- func_append finalize_command " $link_static_flag"
- fi
- continue
- ;;
-
- -allow-undefined)
- # FIXME: remove this flag sometime in the future.
- func_fatal_error "\`-allow-undefined' must not be used because it is the default"
- ;;
-
- -avoid-version)
- avoid_version=yes
- continue
- ;;
-
- -dlopen)
- prev=dlfiles
- continue
- ;;
-
- -dlpreopen)
- prev=dlprefiles
- continue
- ;;
-
- -export-dynamic)
- export_dynamic=yes
- continue
- ;;
-
- -export-symbols | -export-symbols-regex)
- if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
- func_fatal_error "more than one -exported-symbols argument is not allowed"
- fi
- if test "X$arg" = "X-export-symbols"; then
- prev=expsyms
- else
- prev=expsyms_regex
- fi
- continue
- ;;
-
- -framework)
- prev=framework
- continue
- ;;
-
- -inst-prefix-dir)
- prev=inst_prefix
- continue
- ;;
-
- # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
- # so, if we see these flags be careful not to treat them like -L
- -L[A-Z][A-Z]*:*)
- case $with_gcc/$host in
- no/*-*-irix* | /*-*-irix*)
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- ;;
- esac
- continue
- ;;
-
- -L*)
- func_stripname '-L' '' "$arg"
- dir=$func_stripname_result
- if test -z "$dir"; then
- if test "$#" -gt 0; then
- func_fatal_error "require no space between \`-L' and \`$1'"
- else
- func_fatal_error "need path for \`-L' option"
- fi
- fi
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- absdir=`cd "$dir" && pwd`
- test -z "$absdir" && \
- func_fatal_error "cannot determine absolute directory name of \`$dir'"
- dir="$absdir"
- ;;
- esac
- case "$deplibs " in
- *" -L$dir "*) ;;
- *)
- deplibs="$deplibs -L$dir"
- lib_search_path="$lib_search_path $dir"
- ;;
- esac
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "X$dir" | $Xsed -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$dir:"*) ;;
- ::) dllsearchpath=$dir;;
- *) dllsearchpath="$dllsearchpath:$dir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) dllsearchpath="$dllsearchpath:$testbindir";;
- esac
- ;;
- esac
- continue
- ;;
-
- -l*)
- if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc*)
- # These systems don't actually have a C or math library (as such)
- continue
- ;;
- *-*-os2*)
- # These systems don't actually have a C library (as such)
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C and math libraries are in the System framework
- deplibs="$deplibs System.ltframework"
- continue
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- test "X$arg" = "X-lc" && continue
- ;;
- esac
- elif test "X$arg" = "X-lc_r"; then
- case $host in
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc_r directly, use -pthread flag.
- continue
- ;;
- esac
- fi
- deplibs="$deplibs $arg"
- continue
- ;;
-
- -module)
- module=yes
- continue
- ;;
-
- # Tru64 UNIX uses -model [arg] to determine the layout of C++
- # classes, name mangling, and exception handling.
- # Darwin uses the -arch flag to determine output architecture.
- -model|-arch|-isysroot)
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- prev=xcompiler
- continue
- ;;
-
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case "$new_inherited_linker_flags " in
- *" $arg "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $arg" ;;
- esac
- continue
- ;;
-
- -multi_module)
- single_module="${wl}-multi_module"
- continue
- ;;
-
- -no-fast-install)
- fast_install=no
- continue
- ;;
-
- -no-install)
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
- # The PATH hackery in wrapper scripts is required on Windows
- # and Darwin in order for the loader to find any dlls it needs.
- func_warning "\`-no-install' is ignored for $host"
- func_warning "assuming \`-no-fast-install' instead"
- fast_install=no
- ;;
- *) no_install=yes ;;
- esac
- continue
- ;;
-
- -no-undefined)
- allow_undefined=no
- continue
- ;;
-
- -objectlist)
- prev=objectlist
- continue
- ;;
-
- -o) prev=output ;;
-
- -precious-files-regex)
- prev=precious_regex
- continue
- ;;
-
- -release)
- prev=release
- continue
- ;;
-
- -rpath)
- prev=rpath
- continue
- ;;
-
- -R)
- prev=xrpath
- continue
- ;;
-
- -R*)
- func_stripname '-R' '' "$arg"
- dir=$func_stripname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- case "$xrpath " in
- *" $dir "*) ;;
- *) xrpath="$xrpath $dir" ;;
- esac
- continue
- ;;
-
- -shared)
- # The effects of -shared are defined in a previous loop.
- continue
- ;;
-
- -shrext)
- prev=shrext
- continue
- ;;
-
- -static | -static-libtool-libs)
- # The effects of -static are defined in a previous loop.
- # We used to do the same as -all-static on platforms that
- # didn't have a PIC flag, but the assumption that the effects
- # would be equivalent was wrong. It would break on at least
- # Digital Unix and AIX.
- continue
- ;;
-
- -thread-safe)
- thread_safe=yes
- continue
- ;;
-
- -version-info)
- prev=vinfo
- continue
- ;;
-
- -version-number)
- prev=vinfo
- vinfo_number=yes
- continue
- ;;
-
- -weak)
- prev=weak
- continue
- ;;
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs="$IFS"; IFS=','
- for flag in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$flag"
- arg="$arg $wl$func_quote_for_eval_result"
- compiler_flags="$compiler_flags $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Wl,*)
- func_stripname '-Wl,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs="$IFS"; IFS=','
- for flag in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$flag"
- arg="$arg $wl$func_quote_for_eval_result"
- compiler_flags="$compiler_flags $wl$func_quote_for_eval_result"
- linker_flags="$linker_flags $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Xcompiler)
- prev=xcompiler
- continue
- ;;
-
- -Xlinker)
- prev=xlinker
- continue
- ;;
-
- -XCClinker)
- prev=xcclinker
- continue
- ;;
-
- # -msg_* for osf cc
- -msg_*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
-
- # -64, -mips[0-9] enable 64-bit mode on the SGI compiler
- # -r[0-9][0-9]* specifies the processor on the SGI compiler
- # -xarch=*, -xtarget=* enable 64-bit mode on the Sun compiler
- # +DA*, +DD* enable 64-bit mode on the HP compiler
- # -q* pass through compiler args for the IBM compiler
- # -m*, -t[45]*, -txscale* pass through architecture-specific
- # compiler args for GCC
- # -F/path gives path to uninstalled frameworks, gcc on darwin
- # -p, -pg, --coverage, -fprofile-* pass through profiling flag for GCC
- # @file GCC response files
- -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
- -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- compiler_flags="$compiler_flags $arg"
- continue
- ;;
-
- # Some other compiler flag.
- -* | +*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
-
- *.$objext)
- # A standard object.
- objs="$objs $arg"
- ;;
-
- *.lo)
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- if test "$pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
-
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
- dlfiles="$dlfiles $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
- # Preload the old-style object.
- dlprefiles="$dlprefiles $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
-
- # Non-PIC object.
- if test "$non_pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "\`$arg' is not a valid libtool object"
- fi
- fi
- ;;
-
- *.$libext)
- # An archive.
- deplibs="$deplibs $arg"
- old_deplibs="$old_deplibs $arg"
- continue
- ;;
-
- *.la)
- # A libtool-controlled library.
-
- if test "$prev" = dlfiles; then
- # This library was specified with -dlopen.
- dlfiles="$dlfiles $arg"
- prev=
- elif test "$prev" = dlprefiles; then
- # The library was specified with -dlpreopen.
- dlprefiles="$dlprefiles $arg"
- prev=
- else
- deplibs="$deplibs $arg"
- fi
- continue
- ;;
-
- # Some other compiler argument.
- *)
- # Unknown arguments in both finalize_command and compile_command need
- # to be aesthetically quoted because they are evaled later.
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
- esac # arg
-
- # Now actually substitute the argument into the commands.
- if test -n "$arg"; then
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
- done # argument parsing loop
-
- test -n "$prev" && \
- func_fatal_help "the \`$prevarg' option requires an argument"
-
- if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
- eval arg=\"$export_dynamic_flag_spec\"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
-
- oldlibs=
- # calculate the name of the file, without its directory
- func_basename "$output"
- outputname="$func_basename_result"
- libobjs_save="$libobjs"
-
- if test -n "$shlibpath_var"; then
- # get the directories listed in $shlibpath_var
- eval shlib_search_path=\`\$ECHO \"X\${$shlibpath_var}\" \| \$Xsed -e \'s/:/ /g\'\`
- else
- shlib_search_path=
- fi
- eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
- eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
-
- func_dirname "$output" "/" ""
- output_objdir="$func_dirname_result$objdir"
- # Create the object directory.
- func_mkdir_p "$output_objdir"
-
- # Determine the type of output
- case $output in
- "")
- func_fatal_help "you must specify an output file"
- ;;
- *.$libext) linkmode=oldlib ;;
- *.lo | *.$objext) linkmode=obj ;;
- *.la) linkmode=lib ;;
- *) linkmode=prog ;; # Anything else should be a program.
- esac
-
- specialdeplibs=
-
- libs=
- # Find all interdependent deplibs by searching for libraries
- # that are linked more than once (e.g. -la -lb -la)
- for deplib in $deplibs; do
- if $opt_duplicate_deps ; then
- case "$libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- libs="$libs $deplib"
- done
-
- if test "$linkmode" = lib; then
- libs="$predeps $libs $compiler_lib_search_path $postdeps"
-
- # Compute libraries that are listed more than once in $predeps
- # $postdeps and mark them as special (i.e., whose duplicates are
- # not to be eliminated).
- pre_post_deps=
- if $opt_duplicate_compiler_generated_deps; then
- for pre_post_dep in $predeps $postdeps; do
- case "$pre_post_deps " in
- *" $pre_post_dep "*) specialdeplibs="$specialdeplibs $pre_post_deps" ;;
- esac
- pre_post_deps="$pre_post_deps $pre_post_dep"
- done
- fi
- pre_post_deps=
- fi
-
- deplibs=
- newdependency_libs=
- newlib_search_path=
- need_relink=no # whether we're linking any uninstalled libtool libraries
- notinst_deplibs= # not-installed libtool libraries
- notinst_path= # paths that contain not-installed libtool libraries
-
- case $linkmode in
- lib)
- passes="conv dlpreopen link"
- for file in $dlfiles $dlprefiles; do
- case $file in
- *.la) ;;
- *)
- func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
- ;;
- esac
- done
- ;;
- prog)
- compile_deplibs=
- finalize_deplibs=
- alldeplibs=no
- newdlfiles=
- newdlprefiles=
- passes="conv scan dlopen dlpreopen link"
- ;;
- *) passes="conv"
- ;;
- esac
-
- for pass in $passes; do
- # The preopen pass in lib mode reverses $deplibs; put it back here
- # so that -L comes before libs that need it for instance...
- if test "$linkmode,$pass" = "lib,link"; then
- ## FIXME: Find the place where the list is rebuilt in the wrong
- ## order, and fix it there properly
- tmp_deplibs=
- for deplib in $deplibs; do
- tmp_deplibs="$deplib $tmp_deplibs"
- done
- deplibs="$tmp_deplibs"
- fi
-
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan"; then
- libs="$deplibs"
- deplibs=
- fi
- if test "$linkmode" = prog; then
- case $pass in
- dlopen) libs="$dlfiles" ;;
- dlpreopen) libs="$dlprefiles" ;;
- link)
- libs="$deplibs %DEPLIBS%"
- test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
- ;;
- esac
- fi
- if test "$linkmode,$pass" = "lib,dlpreopen"; then
- # Collect and forward deplibs of preopened libtool libs
- for lib in $dlprefiles; do
- # Ignore non-libtool-libs
- dependency_libs=
- case $lib in
- *.la) func_source "$lib" ;;
- esac
-
- # Collect preopened libtool deplibs, except any this library
- # has declared as weak libs
- for deplib in $dependency_libs; do
- deplib_base=`$ECHO "X$deplib" | $Xsed -e "$basename"`
- case " $weak_libs " in
- *" $deplib_base "*) ;;
- *) deplibs="$deplibs $deplib" ;;
- esac
- done
- done
- libs="$dlprefiles"
- fi
- if test "$pass" = dlopen; then
- # Collect dlpreopened libraries
- save_deplibs="$deplibs"
- deplibs=
- fi
-
- for deplib in $libs; do
- lib=
- found=no
- case $deplib in
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- compiler_flags="$compiler_flags $deplib"
- if test "$linkmode" = lib ; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -l*)
- if test "$linkmode" != lib && test "$linkmode" != prog; then
- func_warning "\`-l' is ignored for archives/objects"
- continue
- fi
- func_stripname '-l' '' "$deplib"
- name=$func_stripname_result
- if test "$linkmode" = lib; then
- searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
- else
- searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
- fi
- for searchdir in $searchdirs; do
- for search_ext in .la $std_shrext .so .a; do
- # Search the libtool library
- lib="$searchdir/lib${name}${search_ext}"
- if test -f "$lib"; then
- if test "$search_ext" = ".la"; then
- found=yes
- else
- found=no
- fi
- break 2
- fi
- done
- done
- if test "$found" != yes; then
- # deplib doesn't seem to be a libtool library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- else # deplib is a libtool library
- # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
- # We need to do some special things here, and not later.
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $deplib "*)
- if func_lalib_p "$lib"; then
- library_names=
- old_library=
- func_source "$lib"
- for l in $old_library $library_names; do
- ll="$l"
- done
- if test "X$ll" = "X$old_library" ; then # only static version available
- found=no
- func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
- lib=$ladir/$old_library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- fi
- ;;
- *) ;;
- esac
- fi
- fi
- ;; # -l
- *.ltframework)
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- if test "$linkmode" = lib ; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -L*)
- case $linkmode in
- lib)
- deplibs="$deplib $deplibs"
- test "$pass" = conv && continue
- newdependency_libs="$deplib $newdependency_libs"
- func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- prog)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- continue
- fi
- if test "$pass" = scan; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- *)
- func_warning "\`-L' is ignored for archives/objects"
- ;;
- esac # linkmode
- continue
- ;; # -L
- -R*)
- if test "$pass" = link; then
- func_stripname '-R' '' "$deplib"
- dir=$func_stripname_result
- # Make sure the xrpath contains only unique directories.
- case "$xrpath " in
- *" $dir "*) ;;
- *) xrpath="$xrpath $dir" ;;
- esac
- fi
- deplibs="$deplib $deplibs"
- continue
- ;;
- *.la) lib="$deplib" ;;
- *.$libext)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- continue
- fi
- case $linkmode in
- lib)
- # Linking convenience modules into shared libraries is allowed,
- # but linking other static libraries is non-portable.
- case " $dlpreconveniencelibs " in
- *" $deplib "*) ;;
- *)
- valid_a_lib=no
- case $deplibs_check_method in
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- if eval "\$ECHO \"X$deplib\"" 2>/dev/null | $Xsed -e 10q \
- | $EGREP "$match_pattern_regex" > /dev/null; then
- valid_a_lib=yes
- fi
- ;;
- pass_all)
- valid_a_lib=yes
- ;;
- esac
- if test "$valid_a_lib" != yes; then
- $ECHO
- $ECHO "*** Warning: Trying to link with static lib archive $deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because the file extensions .$libext of this argument makes me believe"
- $ECHO "*** that it is just a static archive that I should not use here."
- else
- $ECHO
- $ECHO "*** Warning: Linking the shared library $output against the"
- $ECHO "*** static library $deplib is not portable!"
- deplibs="$deplib $deplibs"
- fi
- ;;
- esac
- continue
- ;;
- prog)
- if test "$pass" != link; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- continue
- ;;
- esac # linkmode
- ;; # *.$libext
- *.lo | *.$objext)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- elif test "$linkmode" = prog; then
- if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
- # If there is no dlopen support or we're linking statically,
- # we need to preload.
- newdlprefiles="$newdlprefiles $deplib"
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- newdlfiles="$newdlfiles $deplib"
- fi
- fi
- continue
- ;;
- %DEPLIBS%)
- alldeplibs=yes
- continue
- ;;
- esac # case $deplib
-
- if test "$found" = yes || test -f "$lib"; then :
- else
- func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
- fi
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$lib" \
- || func_fatal_error "\`$lib' is not a valid libtool archive"
-
- func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
-
- dlname=
- dlopen=
- dlpreopen=
- libdir=
- library_names=
- old_library=
- inherited_linker_flags=
- # If the library was installed with an old release of libtool,
- # it will not redefine variables installed, or shouldnotlink
- installed=yes
- shouldnotlink=no
- avoidtemprpath=
-
-
- # Read the .la file
- func_source "$lib"
-
- # Convert "-framework foo" to "foo.ltframework"
- if test -n "$inherited_linker_flags"; then
- tmp_inherited_linker_flags=`$ECHO "X$inherited_linker_flags" | $Xsed -e 's/-framework \([^ $]*\)/\1.ltframework/g'`
- for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
- case " $new_inherited_linker_flags " in
- *" $tmp_inherited_linker_flag "*) ;;
- *) new_inherited_linker_flags="$new_inherited_linker_flags $tmp_inherited_linker_flag";;
- esac
- done
- fi
- dependency_libs=`$ECHO "X $dependency_libs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan" ||
- { test "$linkmode" != prog && test "$linkmode" != lib; }; then
- test -n "$dlopen" && dlfiles="$dlfiles $dlopen"
- test -n "$dlpreopen" && dlprefiles="$dlprefiles $dlpreopen"
- fi
-
- if test "$pass" = conv; then
- # Only check for convenience libraries
- deplibs="$lib $deplibs"
- if test -z "$libdir"; then
- if test -z "$old_library"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
- fi
- # It is a libtool convenience library, so add in its objects.
- convenience="$convenience $ladir/$objdir/$old_library"
- old_convenience="$old_convenience $ladir/$objdir/$old_library"
- tmp_libs=
- for deplib in $dependency_libs; do
- deplibs="$deplib $deplibs"
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done
- elif test "$linkmode" != prog && test "$linkmode" != lib; then
- func_fatal_error "\`$lib' is not a convenience library"
- fi
- continue
- fi # $pass = conv
-
-
- # Get the name of the library we link against.
- linklib=
- for l in $old_library $library_names; do
- linklib="$l"
- done
- if test -z "$linklib"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
- fi
-
- # This library was specified with -dlopen.
- if test "$pass" = dlopen; then
- if test -z "$libdir"; then
- func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
- fi
- if test -z "$dlname" ||
- test "$dlopen_support" != yes ||
- test "$build_libtool_libs" = no; then
- # If there is no dlname, no dlopen support or we're linking
- # statically, we need to preload. We also need to preload any
- # dependent libraries so libltdl's deplib preloader doesn't
- # bomb out in the load deplibs phase.
- dlprefiles="$dlprefiles $lib $dependency_libs"
- else
- newdlfiles="$newdlfiles $lib"
- fi
- continue
- fi # $pass = dlopen
-
- # We need an absolute path.
- case $ladir in
- [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
- *)
- abs_ladir=`cd "$ladir" && pwd`
- if test -z "$abs_ladir"; then
- func_warning "cannot determine absolute directory name of \`$ladir'"
- func_warning "passing it literally to the linker, although it might fail"
- abs_ladir="$ladir"
- fi
- ;;
- esac
- func_basename "$lib"
- laname="$func_basename_result"
-
- # Find the relevant object directory and library name.
- if test "X$installed" = Xyes; then
- if test ! -f "$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- func_warning "library \`$lib' was moved."
- dir="$ladir"
- absdir="$abs_ladir"
- libdir="$abs_ladir"
- else
- dir="$libdir"
- absdir="$libdir"
- fi
- test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
- else
- if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- dir="$ladir"
- absdir="$abs_ladir"
- # Remove this search path later
- notinst_path="$notinst_path $abs_ladir"
- else
- dir="$ladir/$objdir"
- absdir="$abs_ladir/$objdir"
- # Remove this search path later
- notinst_path="$notinst_path $abs_ladir"
- fi
- fi # $installed = yes
- func_stripname 'lib' '.la' "$laname"
- name=$func_stripname_result
-
- # This library was specified with -dlpreopen.
- if test "$pass" = dlpreopen; then
- if test -z "$libdir" && test "$linkmode" = prog; then
- func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
- fi
- # Prefer using a static library (so that no silly _DYNAMIC symbols
- # are required to link).
- if test -n "$old_library"; then
- newdlprefiles="$newdlprefiles $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
- # Otherwise, use the dlname, so that lt_dlopen finds it.
- elif test -n "$dlname"; then
- newdlprefiles="$newdlprefiles $dir/$dlname"
- else
- newdlprefiles="$newdlprefiles $dir/$linklib"
- fi
- fi # $pass = dlpreopen
-
- if test -z "$libdir"; then
- # Link the convenience library
- if test "$linkmode" = lib; then
- deplibs="$dir/$old_library $deplibs"
- elif test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$dir/$old_library $compile_deplibs"
- finalize_deplibs="$dir/$old_library $finalize_deplibs"
- else
- deplibs="$lib $deplibs" # used for prog,scan pass
- fi
- continue
- fi
-
-
- if test "$linkmode" = prog && test "$pass" != link; then
- newlib_search_path="$newlib_search_path $ladir"
- deplibs="$lib $deplibs"
-
- linkalldeplibs=no
- if test "$link_all_deplibs" != no || test -z "$library_names" ||
- test "$build_libtool_libs" = no; then
- linkalldeplibs=yes
- fi
-
- tmp_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- esac
- # Need to link against all dependency_libs?
- if test "$linkalldeplibs" = yes; then
- deplibs="$deplib $deplibs"
- else
- # Need to hardcode shared library paths
- # or/and link against static libraries
- newdependency_libs="$deplib $newdependency_libs"
- fi
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done # for deplib
- continue
- fi # $linkmode = prog...
-
- if test "$linkmode,$pass" = "prog,link"; then
- if test -n "$library_names" &&
- { { test "$prefer_static_libs" = no ||
- test "$prefer_static_libs,$installed" = "built,yes"; } ||
- test -z "$old_library"; }; then
- # We need to hardcode the library path
- if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
- # Make sure the rpath contains only unique directories.
- case "$temp_rpath:" in
- *"$absdir:"*) ;;
- *) temp_rpath="$temp_rpath$absdir:" ;;
- esac
- fi
-
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) compile_rpath="$compile_rpath $absdir"
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir"
- esac
- ;;
- esac
- fi # $linkmode,$pass = prog,link...
-
- if test "$alldeplibs" = yes &&
- { test "$deplibs_check_method" = pass_all ||
- { test "$build_libtool_libs" = yes &&
- test -n "$library_names"; }; }; then
- # We only need to search for static libraries
- continue
- fi
- fi
-
- link_static=no # Whether the deplib will be linked statically
- use_static_libs=$prefer_static_libs
- if test "$use_static_libs" = built && test "$installed" = yes; then
- use_static_libs=no
- fi
- if test -n "$library_names" &&
- { test "$use_static_libs" = no || test -z "$old_library"; }; then
- case $host in
- *cygwin* | *mingw* | *cegcc*)
- # No point in relinking DLLs because paths are not encoded
- notinst_deplibs="$notinst_deplibs $lib"
- need_relink=no
- ;;
- *)
- if test "$installed" = no; then
- notinst_deplibs="$notinst_deplibs $lib"
- need_relink=yes
- fi
- ;;
- esac
- # This is a shared library
-
- # Warn about portability, can't link against -module's on some
- # systems (darwin). Don't bleat about dlopened modules though!
- dlopenmodule=""
- for dlpremoduletest in $dlprefiles; do
- if test "X$dlpremoduletest" = "X$lib"; then
- dlopenmodule="$dlpremoduletest"
- break
- fi
- done
- if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
- $ECHO
- if test "$linkmode" = prog; then
- $ECHO "*** Warning: Linking the executable $output against the loadable module"
- else
- $ECHO "*** Warning: Linking the shared library $output against the loadable module"
- fi
- $ECHO "*** $linklib is not portable!"
- fi
- if test "$linkmode" = lib &&
- test "$hardcode_into_libs" = yes; then
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) compile_rpath="$compile_rpath $absdir"
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir"
- esac
- ;;
- esac
- fi
-
- if test -n "$old_archive_from_expsyms_cmds"; then
- # figure out the soname
- set dummy $library_names
- shift
- realname="$1"
- shift
- libname=`eval "\\$ECHO \"$libname_spec\""`
- # use dlname if we got it. it's perfectly good, no?
- if test -n "$dlname"; then
- soname="$dlname"
- elif test -n "$soname_spec"; then
- # bleh windows
- case $host in
- *cygwin* | mingw* | *cegcc*)
- func_arith $current - $age
- major=$func_arith_result
- versuffix="-$major"
- ;;
- esac
- eval soname=\"$soname_spec\"
- else
- soname="$realname"
- fi
-
- # Make a new name for the extract_expsyms_cmds to use
- soroot="$soname"
- func_basename "$soroot"
- soname="$func_basename_result"
- func_stripname 'lib' '.dll' "$soname"
- newlib=libimp-$func_stripname_result.a
-
- # If the library has no export list, then create one now
- if test -f "$output_objdir/$soname-def"; then :
- else
- func_verbose "extracting exported symbol list from \`$soname'"
- func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
- fi
-
- # Create $newlib
- if test -f "$output_objdir/$newlib"; then :; else
- func_verbose "generating import library for \`$soname'"
- func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
- fi
- # make sure the library variables are pointing to the new library
- dir=$output_objdir
- linklib=$newlib
- fi # test -n "$old_archive_from_expsyms_cmds"
-
- if test "$linkmode" = prog || test "$mode" != relink; then
- add_shlibpath=
- add_dir=
- add=
- lib_linked=yes
- case $hardcode_action in
- immediate | unsupported)
- if test "$hardcode_direct" = no; then
- add="$dir/$linklib"
- case $host in
- *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
- *-*-sysv4*uw2*) add_dir="-L$dir" ;;
- *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
- *-*-unixware7*) add_dir="-L$dir" ;;
- *-*-darwin* )
- # if the lib is a (non-dlopened) module then we can not
- # link against it, someone is ignoring the earlier warnings
- if /usr/bin/file -L $add 2> /dev/null |
- $GREP ": [^:]* bundle" >/dev/null ; then
- if test "X$dlopenmodule" != "X$lib"; then
- $ECHO "*** Warning: lib $linklib is a module, not a shared library"
- if test -z "$old_library" ; then
- $ECHO
- $ECHO "*** And there doesn't seem to be a static archive available"
- $ECHO "*** The link will probably fail, sorry"
- else
- add="$dir/$old_library"
- fi
- elif test -n "$old_library"; then
- add="$dir/$old_library"
- fi
- fi
- esac
- elif test "$hardcode_minus_L" = no; then
- case $host in
- *-*-sunos*) add_shlibpath="$dir" ;;
- esac
- add_dir="-L$dir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = no; then
- add_shlibpath="$dir"
- add="-l$name"
- else
- lib_linked=no
- fi
- ;;
- relink)
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$dir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$dir"
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- add_dir="$add_dir -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- add_shlibpath="$dir"
- add="-l$name"
- else
- lib_linked=no
- fi
- ;;
- *) lib_linked=no ;;
- esac
-
- if test "$lib_linked" != yes; then
- func_fatal_configuration "unsupported hardcode properties"
- fi
-
- if test -n "$add_shlibpath"; then
- case :$compile_shlibpath: in
- *":$add_shlibpath:"*) ;;
- *) compile_shlibpath="$compile_shlibpath$add_shlibpath:" ;;
- esac
- fi
- if test "$linkmode" = prog; then
- test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
- test -n "$add" && compile_deplibs="$add $compile_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- if test "$hardcode_direct" != yes &&
- test "$hardcode_minus_L" != yes &&
- test "$hardcode_shlibpath_var" = yes; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
- esac
- fi
- fi
- fi
-
- if test "$linkmode" = prog || test "$mode" = relink; then
- add_shlibpath=
- add_dir=
- add=
- # Finalize command for both is simple: just hardcode it.
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$libdir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$libdir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
- esac
- add="-l$name"
- elif test "$hardcode_automatic" = yes; then
- if test -n "$inst_prefix_dir" &&
- test -f "$inst_prefix_dir$libdir/$linklib" ; then
- add="$inst_prefix_dir$libdir/$linklib"
- else
- add="$libdir/$linklib"
- fi
- else
- # We cannot seem to hardcode it, guess we'll fake it.
- add_dir="-L$libdir"
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- add_dir="$add_dir -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add="-l$name"
- fi
-
- if test "$linkmode" = prog; then
- test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
- test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- fi
- fi
- elif test "$linkmode" = prog; then
- # Here we assume that one of hardcode_direct or hardcode_minus_L
- # is not unsupported. This is valid on all known static and
- # shared platforms.
- if test "$hardcode_direct" != unsupported; then
- test -n "$old_library" && linklib="$old_library"
- compile_deplibs="$dir/$linklib $compile_deplibs"
- finalize_deplibs="$dir/$linklib $finalize_deplibs"
- else
- compile_deplibs="-l$name -L$dir $compile_deplibs"
- finalize_deplibs="-l$name -L$dir $finalize_deplibs"
- fi
- elif test "$build_libtool_libs" = yes; then
- # Not a shared library
- if test "$deplibs_check_method" != pass_all; then
- # We're trying link a shared library against a static one
- # but the system doesn't support it.
-
- # Just print a warning and add the library to dependency_libs so
- # that the program can be linked against the static library.
- $ECHO
- $ECHO "*** Warning: This system can not link to static lib archive $lib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have."
- if test "$module" = yes; then
- $ECHO "*** But as you try to build a module library, libtool will still create "
- $ECHO "*** a static module, that should work as long as the dlopening application"
- $ECHO "*** is linked with the -dlopen flag to resolve symbols at runtime."
- if test -z "$global_symbol_pipe"; then
- $ECHO
- $ECHO "*** However, this would only work if libtool was able to extract symbol"
- $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
- $ECHO "*** not find such a program. So, this module is probably useless."
- $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
- fi
- if test "$build_old_libs" = no; then
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- else
- deplibs="$dir/$old_library $deplibs"
- link_static=yes
- fi
- fi # link shared/static library?
-
- if test "$linkmode" = lib; then
- if test -n "$dependency_libs" &&
- { test "$hardcode_into_libs" != yes ||
- test "$build_old_libs" = yes ||
- test "$link_static" = yes; }; then
- # Extract -R from dependency_libs
- temp_deplibs=
- for libdir in $dependency_libs; do
- case $libdir in
- -R*) func_stripname '-R' '' "$libdir"
- temp_xrpath=$func_stripname_result
- case " $xrpath " in
- *" $temp_xrpath "*) ;;
- *) xrpath="$xrpath $temp_xrpath";;
- esac;;
- *) temp_deplibs="$temp_deplibs $libdir";;
- esac
- done
- dependency_libs="$temp_deplibs"
- fi
-
- newlib_search_path="$newlib_search_path $absdir"
- # Link against this library
- test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
- # ... and its dependency_libs
- tmp_libs=
- for deplib in $dependency_libs; do
- newdependency_libs="$deplib $newdependency_libs"
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done
-
- if test "$link_all_deplibs" != no; then
- # Add the search paths of all dependency libraries
- for deplib in $dependency_libs; do
- path=
- case $deplib in
- -L*) path="$deplib" ;;
- *.la)
- func_dirname "$deplib" "" "."
- dir="$func_dirname_result"
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
- *)
- absdir=`cd "$dir" && pwd`
- if test -z "$absdir"; then
- func_warning "cannot determine absolute directory name of \`$dir'"
- absdir="$dir"
- fi
- ;;
- esac
- if $GREP "^installed=no" $deplib > /dev/null; then
- case $host in
- *-*-darwin*)
- depdepl=
- eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
- if test -n "$deplibrary_names" ; then
- for tmp in $deplibrary_names ; do
- depdepl=$tmp
- done
- if test -f "$absdir/$objdir/$depdepl" ; then
- depdepl="$absdir/$objdir/$depdepl"
- darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- if test -z "$darwin_install_name"; then
- darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- fi
- compiler_flags="$compiler_flags ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
- linker_flags="$linker_flags -dylib_file ${darwin_install_name}:${depdepl}"
- path=
- fi
- fi
- ;;
- *)
- path="-L$absdir/$objdir"
- ;;
- esac
- else
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
- test "$absdir" != "$libdir" && \
- func_warning "\`$deplib' seems to be moved"
-
- path="-L$absdir"
- fi
- ;;
- esac
- case " $deplibs " in
- *" $path "*) ;;
- *) deplibs="$path $deplibs" ;;
- esac
- done
- fi # link_all_deplibs != no
- fi # linkmode = lib
- done # for deplib in $libs
- if test "$pass" = link; then
- if test "$linkmode" = "prog"; then
- compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
- finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
- else
- compiler_flags="$compiler_flags "`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- fi
- fi
- dependency_libs="$newdependency_libs"
- if test "$pass" = dlpreopen; then
- # Link the dlpreopened libraries before other libraries
- for deplib in $save_deplibs; do
- deplibs="$deplib $deplibs"
- done
- fi
- if test "$pass" != dlopen; then
- if test "$pass" != conv; then
- # Make sure lib_search_path contains only unique directories.
- lib_search_path=
- for dir in $newlib_search_path; do
- case "$lib_search_path " in
- *" $dir "*) ;;
- *) lib_search_path="$lib_search_path $dir" ;;
- esac
- done
- newlib_search_path=
- fi
-
- if test "$linkmode,$pass" != "prog,link"; then
- vars="deplibs"
- else
- vars="compile_deplibs finalize_deplibs"
- fi
- for var in $vars dependency_libs; do
- # Add libraries to $var in reverse order
- eval tmp_libs=\"\$$var\"
- new_libs=
- for deplib in $tmp_libs; do
- # FIXME: Pedantically, this is the right thing to do, so
- # that some nasty dependency loop isn't accidentally
- # broken:
- #new_libs="$deplib $new_libs"
- # Pragmatically, this seems to cause very few problems in
- # practice:
- case $deplib in
- -L*) new_libs="$deplib $new_libs" ;;
- -R*) ;;
- *)
- # And here is the reason: when a library appears more
- # than once as an explicit dependence of a library, or
- # is implicitly linked in more than once by the
- # compiler, it is considered special, and multiple
- # occurrences thereof are not removed. Compare this
- # with having the same library being listed as a
- # dependency of multiple other libraries: in this case,
- # we know (pedantically, we assume) the library does not
- # need to be listed more than once, so we keep only the
- # last copy. This is not always right, but it is rare
- # enough that we require users that really mean to play
- # such unportable linking tricks to link the library
- # using -Wl,-lname, so that libtool does not consider it
- # for duplicate removal.
- case " $specialdeplibs " in
- *" $deplib "*) new_libs="$deplib $new_libs" ;;
- *)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$deplib $new_libs" ;;
- esac
- ;;
- esac
- ;;
- esac
- done
- tmp_libs=
- for deplib in $new_libs; do
- case $deplib in
- -L*)
- case " $tmp_libs " in
- *" $deplib "*) ;;
- *) tmp_libs="$tmp_libs $deplib" ;;
- esac
- ;;
- *) tmp_libs="$tmp_libs $deplib" ;;
- esac
- done
- eval $var=\"$tmp_libs\"
- done # for var
- fi
- # Last step: remove runtime libs from dependency_libs
- # (they stay in deplibs)
- tmp_libs=
- for i in $dependency_libs ; do
- case " $predeps $postdeps $compiler_lib_search_path " in
- *" $i "*)
- i=""
- ;;
- esac
- if test -n "$i" ; then
- tmp_libs="$tmp_libs $i"
- fi
- done
- dependency_libs=$tmp_libs
- done # for pass
- if test "$linkmode" = prog; then
- dlfiles="$newdlfiles"
- fi
- if test "$linkmode" = prog || test "$linkmode" = lib; then
- dlprefiles="$newdlprefiles"
- fi
-
- case $linkmode in
- oldlib)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for archives"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for archives" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for archives"
-
- test -n "$xrpath" && \
- func_warning "\`-R' is ignored for archives"
-
- test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for archives"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for archives"
-
- test -n "$export_symbols$export_symbols_regex" && \
- func_warning "\`-export-symbols' is ignored for archives"
-
- # Now set the variables for building old libraries.
- build_libtool_libs=no
- oldlibs="$output"
- objs="$objs$old_deplibs"
- ;;
-
- lib)
- # Make sure we only generate libraries of the form `libNAME.la'.
- case $outputname in
- lib*)
- func_stripname 'lib' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- ;;
- *)
- test "$module" = no && \
- func_fatal_help "libtool library \`$output' must begin with \`lib'"
-
- if test "$need_lib_prefix" != no; then
- # Add the "lib" prefix for modules if required
- func_stripname '' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- else
- func_stripname '' '.la' "$outputname"
- libname=$func_stripname_result
- fi
- ;;
- esac
-
- if test -n "$objs"; then
- if test "$deplibs_check_method" != pass_all; then
- func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
- else
- $ECHO
- $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
- $ECHO "*** objects $objs is not portable!"
- libobjs="$libobjs $objs"
- fi
- fi
-
- test "$dlself" != no && \
- func_warning "\`-dlopen self' is ignored for libtool libraries"
-
- set dummy $rpath
- shift
- test "$#" -gt 1 && \
- func_warning "ignoring multiple \`-rpath's for a libtool library"
-
- install_libdir="$1"
-
- oldlibs=
- if test -z "$rpath"; then
- if test "$build_libtool_libs" = yes; then
- # Building a libtool convenience library.
- # Some compilers have problems with a `.al' extension so
- # convenience libraries should have the same extension an
- # archive normally would.
- oldlibs="$output_objdir/$libname.$libext $oldlibs"
- build_libtool_libs=convenience
- build_old_libs=yes
- fi
-
- test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for convenience libraries"
- else
-
- # Parse the version information argument.
- save_ifs="$IFS"; IFS=':'
- set dummy $vinfo 0 0 0
- shift
- IFS="$save_ifs"
-
- test -n "$7" && \
- func_fatal_help "too many parameters to \`-version-info'"
-
- # convert absolute version numbers to libtool ages
- # this retains compatibility with .la files and attempts
- # to make the code below a bit more comprehensible
-
- case $vinfo_number in
- yes)
- number_major="$1"
- number_minor="$2"
- number_revision="$3"
- #
- # There are really only two kinds -- those that
- # use the current revision as the major version
- # and those that subtract age and use age as
- # a minor version. But, then there is irix
- # which has an extra 1 added just for fun
- #
- case $version_type in
- darwin|linux|osf|windows|none)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age="$number_minor"
- revision="$number_revision"
- ;;
- freebsd-aout|freebsd-elf|sunos)
- current="$number_major"
- revision="$number_minor"
- age="0"
- ;;
- irix|nonstopux)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age="$number_minor"
- revision="$number_minor"
- lt_irix_increment=no
- ;;
- *)
- func_fatal_configuration "$modename: unknown library version type \`$version_type'"
- ;;
- esac
- ;;
- no)
- current="$1"
- revision="$2"
- age="$3"
- ;;
- esac
-
- # Check that each of the things are valid numbers.
- case $current in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "CURRENT \`$current' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- case $revision in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "REVISION \`$revision' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- case $age in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "AGE \`$age' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- if test "$age" -gt "$current"; then
- func_error "AGE \`$age' is greater than the current interface number \`$current'"
- func_fatal_error "\`$vinfo' is not valid version information"
- fi
-
- # Calculate the version variables.
- major=
- versuffix=
- verstring=
- case $version_type in
- none) ;;
-
- darwin)
- # Like Linux, but with the current version available in
- # verstring for coding it into the library header
- func_arith $current - $age
- major=.$func_arith_result
- versuffix="$major.$age.$revision"
- # Darwin ld doesn't like 0 for these options...
- func_arith $current + 1
- minor_current=$func_arith_result
- xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- ;;
-
- freebsd-aout)
- major=".$current"
- versuffix=".$current.$revision";
- ;;
-
- freebsd-elf)
- major=".$current"
- versuffix=".$current"
- ;;
-
- irix | nonstopux)
- if test "X$lt_irix_increment" = "Xno"; then
- func_arith $current - $age
- else
- func_arith $current - $age + 1
- fi
- major=$func_arith_result
-
- case $version_type in
- nonstopux) verstring_prefix=nonstopux ;;
- *) verstring_prefix=sgi ;;
- esac
- verstring="$verstring_prefix$major.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test "$loop" -ne 0; do
- func_arith $revision - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring="$verstring_prefix$major.$iface:$verstring"
- done
-
- # Before this point, $major must not contain `.'.
- major=.$major
- versuffix="$major.$revision"
- ;;
-
- linux)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix="$major.$age.$revision"
- ;;
-
- osf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=".$current.$age.$revision"
- verstring="$current.$age.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$age
- while test "$loop" -ne 0; do
- func_arith $current - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring="$verstring:${iface}.0"
- done
-
- # Make executables depend on our current version.
- verstring="$verstring:${current}.0"
- ;;
-
- qnx)
- major=".$current"
- versuffix=".$current"
- ;;
-
- sunos)
- major=".$current"
- versuffix=".$current.$revision"
- ;;
-
- windows)
- # Use '-' rather than '.', since we only want one
- # extension on DOS 8.3 filesystems.
- func_arith $current - $age
- major=$func_arith_result
- versuffix="-$major"
- ;;
-
- *)
- func_fatal_configuration "unknown library version type \`$version_type'"
- ;;
- esac
-
- # Clear the version info if we defaulted, and they specified a release.
- if test -z "$vinfo" && test -n "$release"; then
- major=
- case $version_type in
- darwin)
- # we can't check for "0.0" in archive_cmds due to quoting
- # problems, so we reset it completely
- verstring=
- ;;
- *)
- verstring="0.0"
- ;;
- esac
- if test "$need_version" = no; then
- versuffix=
- else
- versuffix=".0.0"
- fi
- fi
-
- # Remove version info from name if versioning should be avoided
- if test "$avoid_version" = yes && test "$need_version" = no; then
- major=
- versuffix=
- verstring=""
- fi
-
- # Check to see if the archive will have undefined symbols.
- if test "$allow_undefined" = yes; then
- if test "$allow_undefined_flag" = unsupported; then
- func_warning "undefined symbols not allowed in $host shared libraries"
- build_libtool_libs=no
- build_old_libs=yes
- fi
- else
- # Don't allow undefined symbols.
- allow_undefined_flag="$no_undefined_flag"
- fi
-
- fi
-
- func_generate_dlsyms "$libname" "$libname" "yes"
- libobjs="$libobjs $symfileobj"
- test "X$libobjs" = "X " && libobjs=
-
- if test "$mode" != relink; then
- # Remove our outputs, but don't remove object files since they
- # may have been created when compiling PIC objects.
- removelist=
- tempremovelist=`$ECHO "$output_objdir/*"`
- for p in $tempremovelist; do
- case $p in
- *.$objext | *.gcno)
- ;;
- $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
- if test "X$precious_files_regex" != "X"; then
- if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
- then
- continue
- fi
- fi
- removelist="$removelist $p"
- ;;
- *) ;;
- esac
- done
- test -n "$removelist" && \
- func_show_eval "${RM}r \$removelist"
- fi
-
- # Now set the variables for building old libraries.
- if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
- oldlibs="$oldlibs $output_objdir/$libname.$libext"
-
- # Transform .lo files to .o files.
- oldobjs="$objs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e "$lo2o" | $NL2SP`
- fi
-
- # Eliminate all temporary directories.
- #for path in $notinst_path; do
- # lib_search_path=`$ECHO "X$lib_search_path " | $Xsed -e "s% $path % %g"`
- # deplibs=`$ECHO "X$deplibs " | $Xsed -e "s% -L$path % %g"`
- # dependency_libs=`$ECHO "X$dependency_libs " | $Xsed -e "s% -L$path % %g"`
- #done
-
- if test -n "$xrpath"; then
- # If the user specified any rpath flags, then add them.
- temp_xrpath=
- for libdir in $xrpath; do
- temp_xrpath="$temp_xrpath -R$libdir"
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir" ;;
- esac
- done
- if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
- dependency_libs="$temp_xrpath $dependency_libs"
- fi
- fi
-
- # Make sure dlfiles contains only unique files that won't be dlpreopened
- old_dlfiles="$dlfiles"
- dlfiles=
- for lib in $old_dlfiles; do
- case " $dlprefiles $dlfiles " in
- *" $lib "*) ;;
- *) dlfiles="$dlfiles $lib" ;;
- esac
- done
-
- # Make sure dlprefiles contains only unique files
- old_dlprefiles="$dlprefiles"
- dlprefiles=
- for lib in $old_dlprefiles; do
- case "$dlprefiles " in
- *" $lib "*) ;;
- *) dlprefiles="$dlprefiles $lib" ;;
- esac
- done
-
- if test "$build_libtool_libs" = yes; then
- if test -n "$rpath"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc*)
- # these systems don't actually have a c library (as such)!
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C library is in the System framework
- deplibs="$deplibs System.ltframework"
- ;;
- *-*-netbsd*)
- # Don't link with libc until the a.out ld.so is fixed.
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- ;;
- *)
- # Add libc to deplibs on all other systems if necessary.
- if test "$build_libtool_need_lc" = "yes"; then
- deplibs="$deplibs -lc"
- fi
- ;;
- esac
- fi
-
- # Transform deplibs into only deplibs that can be linked in shared.
- name_save=$name
- libname_save=$libname
- release_save=$release
- versuffix_save=$versuffix
- major_save=$major
- # I'm not sure if I'm treating the release correctly. I think
- # release should show up in the -l (ie -lgmp5) so we don't want to
- # add it in twice. Is that correct?
- release=""
- versuffix=""
- major=""
- newdeplibs=
- droppeddeps=no
- case $deplibs_check_method in
- pass_all)
- # Don't check for shared/static. Everything works.
- # This might be a little naive. We might want to check
- # whether the library exists or not. But this is on
- # osf3 & osf4 and I'm not really sure... Just
- # implementing what was already the behavior.
- newdeplibs=$deplibs
- ;;
- test_compile)
- # This code stresses the "libraries are programs" paradigm to its
- # limits. Maybe even breaks it. We compile a program, linking it
- # against the deplibs as a proxy for the library. Then we can check
- # whether they linked in statically or dynamically with ldd.
- $opt_dry_run || $RM conftest.c
- cat > conftest.c <<EOF
- int main() { return 0; }
-EOF
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
- ldd_output=`ldd conftest`
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $i "*)
- newdeplibs="$newdeplibs $i"
- i=""
- ;;
- esac
- fi
- if test -n "$i" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
- newdeplibs="$newdeplibs $i"
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which I believe you do not have"
- $ECHO "*** because a test_compile did reveal that the linker did not use it for"
- $ECHO "*** its dynamic dependency list that programs get resolved with at runtime."
- fi
- fi
- ;;
- *)
- newdeplibs="$newdeplibs $i"
- ;;
- esac
- done
- else
- # Error occurred in the first compile. Let's try to salvage
- # the situation: Compile a separate program for each library.
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
- ldd_output=`ldd conftest`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $i "*)
- newdeplibs="$newdeplibs $i"
- i=""
- ;;
- esac
- fi
- if test -n "$i" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
- newdeplibs="$newdeplibs $i"
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because a test_compile did reveal that the linker did not use this one"
- $ECHO "*** as a dynamic dependency that programs can get resolved with at runtime."
- fi
- fi
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning! Library $i is needed by this library but I was not able to"
- $ECHO "*** make it link in! You will probably need to install it or some"
- $ECHO "*** library that it depends on before this library will be fully"
- $ECHO "*** functional. Installing it before continuing would be even better."
- fi
- ;;
- *)
- newdeplibs="$newdeplibs $i"
- ;;
- esac
- done
- fi
- ;;
- file_magic*)
- set dummy $deplibs_check_method; shift
- file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- ;;
- esac
- fi
- if test -n "$a_deplib" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- # Follow soft links.
- if ls -lLd "$potent_lib" 2>/dev/null |
- $GREP " -> " >/dev/null; then
- continue
- fi
- # The statement above tries to avoid entering an
- # endless loop below, in case of cyclic links.
- # We might still enter an endless loop, since a link
- # loop can be closed while we follow links,
- # but so what?
- potlib="$potent_lib"
- while test -h "$potlib" 2>/dev/null; do
- potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
- case $potliblink in
- [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
- *) potlib=`$ECHO "X$potlib" | $Xsed -e 's,[^/]*$,,'`"$potliblink";;
- esac
- done
- if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
- $SED -e 10q |
- $EGREP "$file_magic_regex" > /dev/null; then
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib" ; then
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
- $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a file magic. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- newdeplibs="$newdeplibs $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- ;;
- esac
- fi
- if test -n "$a_deplib" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- potlib="$potent_lib" # see symlink-check above in file_magic test
- if eval "\$ECHO \"X$potent_lib\"" 2>/dev/null | $Xsed -e 10q | \
- $EGREP "$match_pattern_regex" > /dev/null; then
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib" ; then
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
- $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a regex pattern. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- newdeplibs="$newdeplibs $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- none | unknown | *)
- newdeplibs=""
- tmp_deplibs=`$ECHO "X $deplibs" | $Xsed \
- -e 's/ -lc$//' -e 's/ -[LR][^ ]*//g'`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- for i in $predeps $postdeps ; do
- # can't use Xsed below, because $i might contain '/'
- tmp_deplibs=`$ECHO "X $tmp_deplibs" | $Xsed -e "s,$i,,"`
- done
- fi
- if $ECHO "X $tmp_deplibs" | $Xsed -e 's/[ ]//g' |
- $GREP . >/dev/null; then
- $ECHO
- if test "X$deplibs_check_method" = "Xnone"; then
- $ECHO "*** Warning: inter-library dependencies are not supported in this platform."
- else
- $ECHO "*** Warning: inter-library dependencies are not known to be supported."
- fi
- $ECHO "*** All declared inter-library dependencies are being dropped."
- droppeddeps=yes
- fi
- ;;
- esac
- versuffix=$versuffix_save
- major=$major_save
- release=$release_save
- libname=$libname_save
- name=$name_save
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library with the System framework
- newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- if test "$droppeddeps" = yes; then
- if test "$module" = yes; then
- $ECHO
- $ECHO "*** Warning: libtool could not satisfy all declared inter-library"
- $ECHO "*** dependencies of module $libname. Therefore, libtool will create"
- $ECHO "*** a static module, that should work as long as the dlopening"
- $ECHO "*** application is linked with the -dlopen flag."
- if test -z "$global_symbol_pipe"; then
- $ECHO
- $ECHO "*** However, this would only work if libtool was able to extract symbol"
- $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
- $ECHO "*** not find such a program. So, this module is probably useless."
- $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
- fi
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- else
- $ECHO "*** The inter-library dependencies that have been dropped here will be"
- $ECHO "*** automatically added whenever a program is linked with this library"
- $ECHO "*** or is declared to -dlopen it."
-
- if test "$allow_undefined" = no; then
- $ECHO
- $ECHO "*** Since this library must not contain undefined symbols,"
- $ECHO "*** because either the platform does not support them or"
- $ECHO "*** it was explicitly requested with -no-undefined,"
- $ECHO "*** libtool will only create a static version of it."
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- fi
- fi
- # Done checking deplibs!
- deplibs=$newdeplibs
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- case $host in
- *-*-darwin*)
- newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- new_inherited_linker_flags=`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- deplibs=`$ECHO "X $deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $deplibs " in
- *" -L$path/$objdir "*)
- new_libs="$new_libs -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- done
- deplibs="$new_libs"
-
- # All the library-specific variables (install_libdir is set above).
- library_names=
- old_library=
- dlname=
-
- # Test again, we may have decided not to build it any more
- if test "$build_libtool_libs" = yes; then
- if test "$hardcode_into_libs" = yes; then
- # Hardcode the library paths
- hardcode_libdirs=
- dep_rpath=
- rpath="$finalize_rpath"
- test "$mode" != relink && rpath="$compile_rpath$rpath"
- for libdir in $rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- dep_rpath="$dep_rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) perm_rpath="$perm_rpath $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- if test -n "$hardcode_libdir_flag_spec_ld"; then
- eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
- else
- eval dep_rpath=\"$hardcode_libdir_flag_spec\"
- fi
- fi
- if test -n "$runpath_var" && test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- rpath="$rpath$dir:"
- done
- eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
- fi
- test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
- fi
-
- shlibpath="$finalize_shlibpath"
- test "$mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
- if test -n "$shlibpath"; then
- eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
- fi
-
- # Get the real and link names of the library.
- eval shared_ext=\"$shrext_cmds\"
- eval library_names=\"$library_names_spec\"
- set dummy $library_names
- shift
- realname="$1"
- shift
-
- if test -n "$soname_spec"; then
- eval soname=\"$soname_spec\"
- else
- soname="$realname"
- fi
- if test -z "$dlname"; then
- dlname=$soname
- fi
-
- lib="$output_objdir/$realname"
- linknames=
- for link
- do
- linknames="$linknames $link"
- done
-
- # Use standard objects if they are pic
- test -z "$pic_flag" && libobjs=`$ECHO "X$libobjs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- test "X$libobjs" = "X " && libobjs=
-
- delfiles=
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
- export_symbols="$output_objdir/$libname.uexp"
- delfiles="$delfiles $export_symbols"
- fi
-
- orig_export_symbols=
- case $host_os in
- cygwin* | mingw* | cegcc*)
- if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
- # exporting using user supplied symfile
- if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
- # and it's NOT already a .def file. Must figure out
- # which of the given symbols are data symbols and tag
- # them as such. So, trigger use of export_symbols_cmds.
- # export_symbols gets reassigned inside the "prepare
- # the list of exported symbols" if statement, so the
- # include_expsyms logic still works.
- orig_export_symbols="$export_symbols"
- export_symbols=
- always_export_symbols=yes
- fi
- fi
- ;;
- esac
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
- $opt_dry_run || $RM $export_symbols
- cmds=$export_symbols_cmds
- save_ifs="$IFS"; IFS='~'
- for cmd in $cmds; do
- IFS="$save_ifs"
- eval cmd=\"$cmd\"
- func_len " $cmd"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- func_show_eval "$cmd" 'exit $?'
- skipped_export=false
- else
- # The command line is too long to execute in one step.
- func_verbose "using reloadable object file for export list..."
- skipped_export=:
- # Break out early, otherwise skipped_export may be
- # set to false by a later but shorter cmd.
- break
- fi
- done
- IFS="$save_ifs"
- if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
- fi
-
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
- $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
-
- tmp_deplibs=
- for test_deplib in $deplibs; do
- case " $convenience " in
- *" $test_deplib "*) ;;
- *)
- tmp_deplibs="$tmp_deplibs $test_deplib"
- ;;
- esac
- done
- deplibs="$tmp_deplibs"
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec" &&
- test "$compiler_needs_object" = yes &&
- test -z "$libobjs"; then
- # extract the archives, so we have objects to list.
- # TODO: could optimize this to just extract one archive.
- whole_archive_flag_spec=
- fi
- if test -n "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- else
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $convenience
- libobjs="$libobjs $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
- fi
-
- if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
- eval flag=\"$thread_safe_flag_spec\"
- linker_flags="$linker_flags $flag"
- fi
-
- # Make a backup of the uninstalled library when relinking
- if test "$mode" = relink; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
- fi
-
- # Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- eval test_cmds=\"$module_expsym_cmds\"
- cmds=$module_expsym_cmds
- else
- eval test_cmds=\"$module_cmds\"
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- eval test_cmds=\"$archive_expsym_cmds\"
- cmds=$archive_expsym_cmds
- else
- eval test_cmds=\"$archive_cmds\"
- cmds=$archive_cmds
- fi
- fi
-
- if test "X$skipped_export" != "X:" &&
- func_len " $test_cmds" &&
- len=$func_len_result &&
- test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- :
- else
- # The command line is too long to link in one step, link piecewise
- # or, if using GNU ld and skipped_export is not :, use a linker
- # script.
-
- # Save the value of $output and $libobjs because we want to
- # use them later. If we have whole_archive_flag_spec, we
- # want to use save_libobjs as it was before
- # whole_archive_flag_spec was expanded, because we can't
- # assume the linker understands whole_archive_flag_spec.
- # This may have to be revisited, in case too many
- # convenience libraries get linked in and end up exceeding
- # the spec.
- if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- fi
- save_output=$output
- output_la=`$ECHO "X$output" | $Xsed -e "$basename"`
-
- # Clear the reloadable object creation command queue and
- # initialize k to one.
- test_cmds=
- concat_cmds=
- objlist=
- last_robj=
- k=1
-
- if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
- output=${output_objdir}/${output_la}.lnkscript
- func_verbose "creating GNU ld script: $output"
- $ECHO 'INPUT (' > $output
- for obj in $save_libobjs
- do
- $ECHO "$obj" >> $output
- done
- $ECHO ')' >> $output
- delfiles="$delfiles $output"
- elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
- output=${output_objdir}/${output_la}.lnk
- func_verbose "creating linker input file list: $output"
- : > $output
- set x $save_libobjs
- shift
- firstobj=
- if test "$compiler_needs_object" = yes; then
- firstobj="$1 "
- shift
- fi
- for obj
- do
- $ECHO "$obj" >> $output
- done
- delfiles="$delfiles $output"
- output=$firstobj\"$file_list_spec$output\"
- else
- if test -n "$save_libobjs"; then
- func_verbose "creating reloadable object files..."
- output=$output_objdir/$output_la-${k}.$objext
- eval test_cmds=\"$reload_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
-
- # Loop over the list of objects to be linked.
- for obj in $save_libobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- if test "X$objlist" = X ||
- test "$len" -lt "$max_cmd_len"; then
- func_append objlist " $obj"
- else
- # The command $test_cmds is almost too long, add a
- # command to the queue.
- if test "$k" -eq 1 ; then
- # The first file doesn't have a previous command to add.
- eval concat_cmds=\"$reload_cmds $objlist $last_robj\"
- else
- # All subsequent reloadable object files will link in
- # the last one created.
- eval concat_cmds=\"\$concat_cmds~$reload_cmds $objlist $last_robj~\$RM $last_robj\"
- fi
- last_robj=$output_objdir/$output_la-${k}.$objext
- func_arith $k + 1
- k=$func_arith_result
- output=$output_objdir/$output_la-${k}.$objext
- objlist=$obj
- func_len " $last_robj"
- func_arith $len0 + $func_len_result
- len=$func_arith_result
- fi
- done
- # Handle the remaining objects by creating one last
- # reloadable object file. All subsequent reloadable object
- # files will link in the last one created.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$reload_cmds $objlist $last_robj\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
- fi
- delfiles="$delfiles $output"
-
- else
- output=
- fi
-
- if ${skipped_export-false}; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
- $opt_dry_run || $RM $export_symbols
- libobjs=$output
- # Append the command to create the export file.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- fi
-
- test -n "$save_libobjs" &&
- func_verbose "creating a temporary reloadable object file: $output"
-
- # Loop through the commands generated above and execute them.
- save_ifs="$IFS"; IFS='~'
- for cmd in $concat_cmds; do
- IFS="$save_ifs"
- $opt_silent || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS="$save_ifs"
-
- if test -n "$export_symbols_regex" && ${skipped_export-false}; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
-
- if ${skipped_export-false}; then
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
- $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
- fi
-
- libobjs=$output
- # Restore the value of output.
- output=$save_output
-
- if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- fi
- # Expand the library linking commands again to reset the
- # value of $libobjs for piecewise linking.
-
- # Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- cmds=$module_expsym_cmds
- else
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- cmds=$archive_expsym_cmds
- else
- cmds=$archive_cmds
- fi
- fi
- fi
-
- if test -n "$delfiles"; then
- # Append the command to remove temporary files to $cmds.
- eval cmds=\"\$cmds~\$RM $delfiles\"
- fi
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $dlprefiles
- libobjs="$libobjs $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
-
- save_ifs="$IFS"; IFS='~'
- for cmd in $cmds; do
- IFS="$save_ifs"
- eval cmd=\"$cmd\"
- $opt_silent || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS="$save_ifs"
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
-
- if test -n "$convenience"; then
- if test -z "$whole_archive_flag_spec"; then
- func_show_eval '${RM}r "$gentop"'
- fi
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- # Create links to the real library.
- for linkname in $linknames; do
- if test "$realname" != "$linkname"; then
- func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
- fi
- done
-
- # If -module or -export-dynamic was specified, set the dlname.
- if test "$module" = yes || test "$export_dynamic" = yes; then
- # On all known operating systems, these are identical.
- dlname="$soname"
- fi
- fi
- ;;
-
- obj)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for objects"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for objects" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for objects"
-
- test -n "$xrpath" && \
- func_warning "\`-R' is ignored for objects"
-
- test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for objects"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for objects"
-
- case $output in
- *.lo)
- test -n "$objs$old_deplibs" && \
- func_fatal_error "cannot build library object \`$output' from non-libtool objects"
-
- libobj=$output
- func_lo2o "$libobj"
- obj=$func_lo2o_result
- ;;
- *)
- libobj=
- obj="$output"
- ;;
- esac
-
- # Delete the old objects.
- $opt_dry_run || $RM $obj $libobj
-
- # Objects from convenience libraries. This assumes
- # single-version convenience libraries. Whenever we create
- # different ones for PIC/non-PIC, this we'll have to duplicate
- # the extraction.
- reload_conv_objs=
- gentop=
- # reload_cmds runs $LD directly, so let us get rid of
- # -Wl from whole_archive_flag_spec and hope we can get by with
- # turning comma into space..
- wl=
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec"; then
- eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
- reload_conv_objs=$reload_objs\ `$ECHO "X$tmp_whole_archive_flags" | $Xsed -e 's|,| |g'`
- else
- gentop="$output_objdir/${obj}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $convenience
- reload_conv_objs="$reload_objs $func_extract_archives_result"
- fi
- fi
-
- # Create the old-style object.
- reload_objs="$objs$old_deplibs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}$'/d' -e '/\.lib$/d' -e "$lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
-
- output="$obj"
- func_execute_cmds "$reload_cmds" 'exit $?'
-
- # Exit if we aren't doing a library object file.
- if test -z "$libobj"; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- if test "$build_libtool_libs" != yes; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- # Create an invalid libtool object if no PIC, so that we don't
- # accidentally link it into a program.
- # $show "echo timestamp > $libobj"
- # $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
- exit $EXIT_SUCCESS
- fi
-
- if test -n "$pic_flag" || test "$pic_mode" != default; then
- # Only do commands if we really have different PIC objects.
- reload_objs="$libobjs $reload_conv_objs"
- output="$libobj"
- func_execute_cmds "$reload_cmds" 'exit $?'
- fi
-
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- ;;
-
- prog)
- case $host in
- *cygwin*) func_stripname '' '.exe' "$output"
- output=$func_stripname_result.exe;;
- esac
- test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for programs"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for programs"
-
- test "$preload" = yes \
- && test "$dlopen_support" = unknown \
- && test "$dlopen_self" = unknown \
- && test "$dlopen_self_static" = unknown && \
- func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library is the System framework
- compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- case $host in
- *-*-darwin*)
- # Don't allow lazy linking, it breaks C++ global constructors
- # But is supposedly fixed on 10.4 or later (yay!).
- if test "$tagname" = CXX ; then
- case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
- 10.[0123])
- compile_command="$compile_command ${wl}-bind_at_load"
- finalize_command="$finalize_command ${wl}-bind_at_load"
- ;;
- esac
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $compile_deplibs " in
- *" -L$path/$objdir "*)
- new_libs="$new_libs -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $compile_deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- done
- compile_deplibs="$new_libs"
-
-
- compile_command="$compile_command $compile_deplibs"
- finalize_command="$finalize_command $finalize_deplibs"
-
- if test -n "$rpath$xrpath"; then
- # If the user specified any rpath flags, then add them.
- for libdir in $rpath $xrpath; do
- # This is the magic to use -rpath.
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir" ;;
- esac
- done
- fi
-
- # Now hardcode the library paths
- rpath=
- hardcode_libdirs=
- for libdir in $compile_rpath $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- rpath="$rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) perm_rpath="$perm_rpath $libdir" ;;
- esac
- fi
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$libdir:"*) ;;
- ::) dllsearchpath=$libdir;;
- *) dllsearchpath="$dllsearchpath:$libdir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) dllsearchpath="$dllsearchpath:$testbindir";;
- esac
- ;;
- esac
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- compile_rpath="$rpath"
-
- rpath=
- hardcode_libdirs=
- for libdir in $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- rpath="$rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$finalize_perm_rpath " in
- *" $libdir "*) ;;
- *) finalize_perm_rpath="$finalize_perm_rpath $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- finalize_rpath="$rpath"
-
- if test -n "$libobjs" && test "$build_old_libs" = yes; then
- # Transform all the library objects into standard objects.
- compile_command=`$ECHO "X$compile_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- finalize_command=`$ECHO "X$finalize_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- fi
-
- func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
-
- # template prelinking step
- if test -n "$prelink_cmds"; then
- func_execute_cmds "$prelink_cmds" 'exit $?'
- fi
-
- wrappers_required=yes
- case $host in
- *cygwin* | *mingw* )
- if test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
- ;;
- *cegcc)
- # Disable wrappers for cegcc, we are cross compiling anyway.
- wrappers_required=no
- ;;
- *)
- if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
- ;;
- esac
- if test "$wrappers_required" = no; then
- # Replace the output file specification.
- compile_command=`$ECHO "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
- link_command="$compile_command$compile_rpath"
-
- # We have no uninstalled library dependencies, so finalize right now.
- exit_status=0
- func_show_eval "$link_command" 'exit_status=$?'
-
- # Delete the generated files.
- if test -f "$output_objdir/${outputname}S.${objext}"; then
- func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
- fi
-
- exit $exit_status
- fi
-
- if test -n "$compile_shlibpath$finalize_shlibpath"; then
- compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
- fi
- if test -n "$finalize_shlibpath"; then
- finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
- fi
-
- compile_var=
- finalize_var=
- if test -n "$runpath_var"; then
- if test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- rpath="$rpath$dir:"
- done
- compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- if test -n "$finalize_perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $finalize_perm_rpath; do
- rpath="$rpath$dir:"
- done
- finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- fi
-
- if test "$no_install" = yes; then
- # We don't need to create a wrapper script.
- link_command="$compile_var$compile_command$compile_rpath"
- # Replace the output file specification.
- link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
- # Delete the old output file.
- $opt_dry_run || $RM $output
- # Link the executable and exit
- func_show_eval "$link_command" 'exit $?'
- exit $EXIT_SUCCESS
- fi
-
- if test "$hardcode_action" = relink; then
- # Fast installation is not supported
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
-
- func_warning "this platform does not like uninstalled shared libraries"
- func_warning "\`$output' will be relinked during installation"
- else
- if test "$fast_install" != no; then
- link_command="$finalize_var$compile_command$finalize_rpath"
- if test "$fast_install" = yes; then
- relink_command=`$ECHO "X$compile_var$compile_command$compile_rpath" | $Xsed -e 's%@OUTPUT@%\$progdir/\$file%g'`
- else
- # fast_install is set to needless
- relink_command=
- fi
- else
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
- fi
- fi
-
- # Replace the output file specification.
- link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
-
- # Delete the old output files.
- $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
-
- func_show_eval "$link_command" 'exit $?'
-
- # Now create the wrapper script.
- func_verbose "creating $output"
-
- # Quote the relink command for shipping.
- if test -n "$relink_command"; then
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- relink_command="(cd `pwd`; $relink_command)"
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
- fi
-
- # Quote $ECHO for shipping.
- if test "X$ECHO" = "X$SHELL $progpath --fallback-echo"; then
- case $progpath in
- [\\/]* | [A-Za-z]:[\\/]*) qecho="$SHELL $progpath --fallback-echo";;
- *) qecho="$SHELL `pwd`/$progpath --fallback-echo";;
- esac
- qecho=`$ECHO "X$qecho" | $Xsed -e "$sed_quote_subst"`
- else
- qecho=`$ECHO "X$ECHO" | $Xsed -e "$sed_quote_subst"`
- fi
-
- # Only actually do things if not in dry run mode.
- $opt_dry_run || {
- # win32 will think the script is a binary if it has
- # a .exe suffix, so we strip it off here.
- case $output in
- *.exe) func_stripname '' '.exe' "$output"
- output=$func_stripname_result ;;
- esac
- # test for cygwin because mv fails w/o .exe extensions
- case $host in
- *cygwin*)
- exeext=.exe
- func_stripname '' '.exe' "$outputname"
- outputname=$func_stripname_result ;;
- *) exeext= ;;
- esac
- case $host in
- *cygwin* | *mingw* )
- func_dirname_and_basename "$output" "" "."
- output_name=$func_basename_result
- output_path=$func_dirname_result
- cwrappersource="$output_path/$objdir/lt-$output_name.c"
- cwrapper="$output_path/$output_name.exe"
- $RM $cwrappersource $cwrapper
- trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_cwrapperexe_src > $cwrappersource
-
- # The wrapper executable is built using the $host compiler,
- # because it contains $host paths and files. If cross-
- # compiling, it, like the target executable, must be
- # executed on the $host or under an emulation environment.
- $opt_dry_run || {
- $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
- $STRIP $cwrapper
- }
-
- # Now, create the wrapper script for func_source use:
- func_ltwrapper_scriptname $cwrapper
- $RM $func_ltwrapper_scriptname_result
- trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
- $opt_dry_run || {
- # note: this script will not be executed, so do not chmod.
- if test "x$build" = "x$host" ; then
- $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
- else
- func_emit_wrapper no > $func_ltwrapper_scriptname_result
- fi
- }
- ;;
- * )
- $RM $output
- trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_wrapper no > $output
- chmod +x $output
- ;;
- esac
- }
- exit $EXIT_SUCCESS
- ;;
- esac
-
- # See if we need to build an old-fashioned archive.
- for oldlib in $oldlibs; do
-
- if test "$build_libtool_libs" = convenience; then
- oldobjs="$libobjs_save $symfileobj"
- addlibs="$convenience"
- build_libtool_libs=no
- else
- if test "$build_libtool_libs" = module; then
- oldobjs="$libobjs_save"
- build_libtool_libs=no
- else
- oldobjs="$old_deplibs $non_pic_objects"
- if test "$preload" = yes && test -f "$symfileobj"; then
- oldobjs="$oldobjs $symfileobj"
- fi
- fi
- addlibs="$old_convenience"
- fi
-
- if test -n "$addlibs"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $addlibs
- oldobjs="$oldobjs $func_extract_archives_result"
- fi
-
- # Do each command in the archive commands.
- if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
- cmds=$old_archive_from_new_cmds
- else
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $dlprefiles
- oldobjs="$oldobjs $func_extract_archives_result"
- fi
-
- # POSIX demands no paths to be encoded in archives. We have
- # to avoid creating archives with duplicate basenames if we
- # might have to extract them afterwards, e.g., when creating a
- # static archive out of a convenience library, or when linking
- # the entirety of a libtool archive into another (currently
- # not supported by libtool).
- if (for obj in $oldobjs
- do
- func_basename "$obj"
- $ECHO "$func_basename_result"
- done | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- $ECHO "copying selected object files to avoid basename conflicts..."
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
- func_mkdir_p "$gentop"
- save_oldobjs=$oldobjs
- oldobjs=
- counter=1
- for obj in $save_oldobjs
- do
- func_basename "$obj"
- objbase="$func_basename_result"
- case " $oldobjs " in
- " ") oldobjs=$obj ;;
- *[\ /]"$objbase "*)
- while :; do
- # Make sure we don't pick an alternate name that also
- # overlaps.
- newobj=lt$counter-$objbase
- func_arith $counter + 1
- counter=$func_arith_result
- case " $oldobjs " in
- *[\ /]"$newobj "*) ;;
- *) if test ! -f "$gentop/$newobj"; then break; fi ;;
- esac
- done
- func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
- oldobjs="$oldobjs $gentop/$newobj"
- ;;
- *) oldobjs="$oldobjs $obj" ;;
- esac
- done
- fi
- eval cmds=\"$old_archive_cmds\"
-
- func_len " $cmds"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- cmds=$old_archive_cmds
- else
- # the command line is too long to link in one step, link in parts
- func_verbose "using piecewise archive linking..."
- save_RANLIB=$RANLIB
- RANLIB=:
- objlist=
- concat_cmds=
- save_oldobjs=$oldobjs
- oldobjs=
- # Is there a better way of finding the last object in the list?
- for obj in $save_oldobjs
- do
- last_oldobj=$obj
- done
- eval test_cmds=\"$old_archive_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
- for obj in $save_oldobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- func_append objlist " $obj"
- if test "$len" -lt "$max_cmd_len"; then
- :
- else
- # the above command should be used before it gets too long
- oldobjs=$objlist
- if test "$obj" = "$last_oldobj" ; then
- RANLIB=$save_RANLIB
- fi
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
- objlist=
- len=$len0
- fi
- done
- RANLIB=$save_RANLIB
- oldobjs=$objlist
- if test "X$oldobjs" = "X" ; then
- eval cmds=\"\$concat_cmds\"
- else
- eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
- fi
- fi
- fi
- func_execute_cmds "$cmds" 'exit $?'
- done
-
- test -n "$generated" && \
- func_show_eval "${RM}r$generated"
-
- # Now create the libtool archive.
- case $output in
- *.la)
- old_library=
- test "$build_old_libs" = yes && old_library="$libname.$libext"
- func_verbose "creating $output"
-
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- # Quote the link command for shipping.
- relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
- if test "$hardcode_automatic" = yes ; then
- relink_command=
- fi
-
- # Only create the output if not a dry run.
- $opt_dry_run || {
- for installed in no yes; do
- if test "$installed" = yes; then
- if test -z "$install_libdir"; then
- break
- fi
- output="$output_objdir/$outputname"i
- # Replace all uninstalled libtool libraries with the installed ones
- newdependency_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- *.la)
- func_basename "$deplib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
- newdependency_libs="$newdependency_libs $libdir/$name"
- ;;
- *) newdependency_libs="$newdependency_libs $deplib" ;;
- esac
- done
- dependency_libs="$newdependency_libs"
- newdlfiles=
-
- for lib in $dlfiles; do
- case $lib in
- *.la)
- func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
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- test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
- if test -z "$file"; then
- # ... or it is the one specified with @setfilename ...
- infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
- file=`sed -n '
- /^@setfilename/{
- s/.* \([^ ]*\) *$/\1/
- p
- q
- }' $infile`
- # ... or it is derived from the source name (dir/f.texi becomes f.info)
- test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
- fi
- # If the file does not exist, the user really needs makeinfo;
- # let's fail without touching anything.
- test -f $file || exit 1
- touch $file
- ;;
-
- tar*)
- shift
-
- # We have already tried tar in the generic part.
- # Look for gnutar/gtar before invocation to avoid ugly error
- # messages.
- if (gnutar --version > /dev/null 2>&1); then
- gnutar "$@" && exit 0
- fi
- if (gtar --version > /dev/null 2>&1); then
- gtar "$@" && exit 0
- fi
- firstarg="$1"
- if shift; then
- case $firstarg in
- *o*)
- firstarg=`echo "$firstarg" | sed s/o//`
- tar "$firstarg" "$@" && exit 0
- ;;
- esac
- case $firstarg in
- *h*)
- firstarg=`echo "$firstarg" | sed s/h//`
- tar "$firstarg" "$@" && exit 0
- ;;
- esac
- fi
-
- echo 1>&2 "\
-WARNING: I can't seem to be able to run \`tar' with the given arguments.
- You may want to install GNU tar or Free paxutils, or check the
- command line arguments."
- exit 1
- ;;
-
- *)
- echo 1>&2 "\
-WARNING: \`$1' is needed, and is $msg.
- You might have modified some files without having the
- proper tools for further handling them. Check the \`README' file,
- it often tells you about the needed prerequisites for installing
- this package. You may also peek at any GNU archive site, in case
- some other package would contain this missing \`$1' program."
- exit 1
- ;;
-esac
-
-exit 0
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
-# time-stamp-end: "; # UTC"
-# End:
+++ /dev/null
-// Copyright 2011 Martin Gieseking <martin.gieseking@uos.de>.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "snappy.h"
-#include "snappy-c.h"
-
-extern "C" {
-
-snappy_status snappy_compress(const char* input,
- size_t input_length,
- char* compressed,
- size_t *compressed_length) {
- if (*compressed_length < snappy_max_compressed_length(input_length)) {
- return SNAPPY_BUFFER_TOO_SMALL;
- }
- snappy::RawCompress(input, input_length, compressed, compressed_length);
- return SNAPPY_OK;
-}
-
-snappy_status snappy_uncompress(const char* compressed,
- size_t compressed_length,
- char* uncompressed,
- size_t* uncompressed_length) {
- size_t real_uncompressed_length;
- if (!snappy::GetUncompressedLength(compressed,
- compressed_length,
- &real_uncompressed_length)) {
- return SNAPPY_INVALID_INPUT;
- }
- if (*uncompressed_length < real_uncompressed_length) {
- return SNAPPY_BUFFER_TOO_SMALL;
- }
- if (!snappy::RawUncompress(compressed, compressed_length, uncompressed)) {
- return SNAPPY_INVALID_INPUT;
- }
- *uncompressed_length = real_uncompressed_length;
- return SNAPPY_OK;
-}
-
-size_t snappy_max_compressed_length(size_t source_length) {
- return snappy::MaxCompressedLength(source_length);
-}
-
-snappy_status snappy_uncompressed_length(const char *compressed,
- size_t compressed_length,
- size_t *result) {
- if (snappy::GetUncompressedLength(compressed,
- compressed_length,
- result)) {
- return SNAPPY_OK;
- } else {
- return SNAPPY_INVALID_INPUT;
- }
-}
-
-snappy_status snappy_validate_compressed_buffer(const char *compressed,
- size_t compressed_length) {
- if (snappy::IsValidCompressedBuffer(compressed, compressed_length)) {
- return SNAPPY_OK;
- } else {
- return SNAPPY_INVALID_INPUT;
- }
-}
-
-} // extern "C"
+++ /dev/null
-/*
- * Copyright 2011 Martin Gieseking <martin.gieseking@uos.de>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Plain C interface (a wrapper around the C++ implementation).
- */
-
-#ifndef UTIL_SNAPPY_OPENSOURCE_SNAPPY_C_H_
-#define UTIL_SNAPPY_OPENSOURCE_SNAPPY_C_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stddef.h>
-
-/*
- * Return values; see the documentation for each function to know
- * what each can return.
- */
-typedef enum {
- SNAPPY_OK = 0,
- SNAPPY_INVALID_INPUT = 1,
- SNAPPY_BUFFER_TOO_SMALL = 2,
-} snappy_status;
-
-/*
- * Takes the data stored in "input[0..input_length-1]" and stores
- * it in the array pointed to by "compressed".
- *
- * <compressed_length> signals the space available in "compressed".
- * If it is not at least equal to "snappy_max_compressed_length(input_length)",
- * SNAPPY_BUFFER_TOO_SMALL is returned. After successful compression,
- * <compressed_length> contains the true length of the compressed output,
- * and SNAPPY_OK is returned.
- *
- * Example:
- * size_t output_length = snappy_max_compressed_length(input_length);
- * char* output = (char*)malloc(output_length);
- * if (snappy_compress(input, input_length, output, &output_length)
- * == SNAPPY_OK) {
- * ... Process(output, output_length) ...
- * }
- * free(output);
- */
-snappy_status snappy_compress(const char* input,
- size_t input_length,
- char* compressed,
- size_t* compressed_length);
-
-/*
- * Given data in "compressed[0..compressed_length-1]" generated by
- * calling the snappy_compress routine, this routine stores
- * the uncompressed data to
- * uncompressed[0..uncompressed_length-1].
- * Returns failure (a value not equal to SNAPPY_OK) if the message
- * is corrupted and could not be decrypted.
- *
- * <uncompressed_length> signals the space available in "uncompressed".
- * If it is not at least equal to the value returned by
- * snappy_uncompressed_length for this stream, SNAPPY_BUFFER_TOO_SMALL
- * is returned. After successful decompression, <uncompressed_length>
- * contains the true length of the decompressed output.
- *
- * Example:
- * size_t output_length;
- * if (snappy_uncompressed_length(input, input_length, &output_length)
- * != SNAPPY_OK) {
- * ... fail ...
- * }
- * char* output = (char*)malloc(output_length);
- * if (snappy_uncompress(input, input_length, output, &output_length)
- * == SNAPPY_OK) {
- * ... Process(output, output_length) ...
- * }
- * free(output);
- */
-snappy_status snappy_uncompress(const char* compressed,
- size_t compressed_length,
- char* uncompressed,
- size_t* uncompressed_length);
-
-/*
- * Returns the maximal size of the compressed representation of
- * input data that is "source_length" bytes in length.
- */
-size_t snappy_max_compressed_length(size_t source_length);
-
-/*
- * REQUIRES: "compressed[]" was produced by snappy_compress()
- * Returns SNAPPY_OK and stores the length of the uncompressed data in
- * *result normally. Returns SNAPPY_INVALID_INPUT on parsing error.
- * This operation takes O(1) time.
- */
-snappy_status snappy_uncompressed_length(const char* compressed,
- size_t compressed_length,
- size_t* result);
-
-/*
- * Check if the contents of "compressed[]" can be uncompressed successfully.
- * Does not return the uncompressed data; if so, returns SNAPPY_OK,
- * or if not, returns SNAPPY_INVALID_INPUT.
- * Takes time proportional to compressed_length, but is usually at least a
- * factor of four faster than actual decompression.
- */
-snappy_status snappy_validate_compressed_buffer(const char* compressed,
- size_t compressed_length);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif /* UTIL_SNAPPY_OPENSOURCE_SNAPPY_C_H_ */
+++ /dev/null
-# snappy-c.lo - a libtool object file
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/snappy-c.o'
-
-# Name of the non-PIC object
-non_pic_object='snappy-c.o'
-
+++ /dev/null
-// Copyright 2008 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Internals shared between the Snappy implementation and its unittest.
-
-#ifndef UTIL_SNAPPY_SNAPPY_INTERNAL_H_
-#define UTIL_SNAPPY_SNAPPY_INTERNAL_H_
-
-#include "snappy-stubs-internal.h"
-
-namespace snappy {
-namespace internal {
-
-class WorkingMemory {
- public:
- WorkingMemory() : large_table_(NULL) { }
- ~WorkingMemory() { delete[] large_table_; }
-
- // Allocates and clears a hash table using memory in "*this",
- // stores the number of buckets in "*table_size" and returns a pointer to
- // the base of the hash table.
- uint16* GetHashTable(size_t input_size, int* table_size);
-
- private:
- uint16 small_table_[1<<10]; // 2KB
- uint16* large_table_; // Allocated only when needed
-
- DISALLOW_COPY_AND_ASSIGN(WorkingMemory);
-};
-
-// Flat array compression that does not emit the "uncompressed length"
-// prefix. Compresses "input" string to the "*op" buffer.
-//
-// REQUIRES: "input_length <= kBlockSize"
-// REQUIRES: "op" points to an array of memory that is at least
-// "MaxCompressedLength(input_length)" in size.
-// REQUIRES: All elements in "table[0..table_size-1]" are initialized to zero.
-// REQUIRES: "table_size" is a power of two
-//
-// Returns an "end" pointer into "op" buffer.
-// "end - op" is the compressed size of "input".
-char* CompressFragment(const char* input,
- size_t input_length,
- char* op,
- uint16* table,
- const int table_size);
-
-// Return the largest n such that
-//
-// s1[0,n-1] == s2[0,n-1]
-// and n <= (s2_limit - s2).
-//
-// Does not read *s2_limit or beyond.
-// Does not read *(s1 + (s2_limit - s2)) or beyond.
-// Requires that s2_limit >= s2.
-//
-// Separate implementation for x86_64, for speed. Uses the fact that
-// x86_64 is little endian.
-#if defined(ARCH_K8)
-static inline int FindMatchLength(const char* s1,
- const char* s2,
- const char* s2_limit) {
- DCHECK_GE(s2_limit, s2);
- int matched = 0;
-
- // Find out how long the match is. We loop over the data 64 bits at a
- // time until we find a 64-bit block that doesn't match; then we find
- // the first non-matching bit and use that to calculate the total
- // length of the match.
- while (PREDICT_TRUE(s2 <= s2_limit - 8)) {
- if (PREDICT_FALSE(UNALIGNED_LOAD64(s2) == UNALIGNED_LOAD64(s1 + matched))) {
- s2 += 8;
- matched += 8;
- } else {
- // On current (mid-2008) Opteron models there is a 3% more
- // efficient code sequence to find the first non-matching byte.
- // However, what follows is ~10% better on Intel Core 2 and newer,
- // and we expect AMD's bsf instruction to improve.
- uint64 x = UNALIGNED_LOAD64(s2) ^ UNALIGNED_LOAD64(s1 + matched);
- int matching_bits = Bits::FindLSBSetNonZero64(x);
- matched += matching_bits >> 3;
- return matched;
- }
- }
- while (PREDICT_TRUE(s2 < s2_limit)) {
- if (PREDICT_TRUE(s1[matched] == *s2)) {
- ++s2;
- ++matched;
- } else {
- return matched;
- }
- }
- return matched;
-}
-#else
-static inline int FindMatchLength(const char* s1,
- const char* s2,
- const char* s2_limit) {
- // Implementation based on the x86-64 version, above.
- DCHECK_GE(s2_limit, s2);
- int matched = 0;
-
- while (s2 <= s2_limit - 4 &&
- UNALIGNED_LOAD32(s2) == UNALIGNED_LOAD32(s1 + matched)) {
- s2 += 4;
- matched += 4;
- }
- if (LittleEndian::IsLittleEndian() && s2 <= s2_limit - 4) {
- uint32 x = UNALIGNED_LOAD32(s2) ^ UNALIGNED_LOAD32(s1 + matched);
- int matching_bits = Bits::FindLSBSetNonZero(x);
- matched += matching_bits >> 3;
- } else {
- while ((s2 < s2_limit) && (s1[matched] == *s2)) {
- ++s2;
- ++matched;
- }
- }
- return matched;
-}
-#endif
-
-} // end namespace internal
-} // end namespace snappy
-
-#endif // UTIL_SNAPPY_SNAPPY_INTERNAL_H_
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include <string.h>
-
-#include "snappy-sinksource.h"
-
-namespace snappy {
-
-Source::~Source() { }
-
-Sink::~Sink() { }
-
-char* Sink::GetAppendBuffer(size_t length, char* scratch) {
- return scratch;
-}
-
-ByteArraySource::~ByteArraySource() { }
-
-size_t ByteArraySource::Available() const { return left_; }
-
-const char* ByteArraySource::Peek(size_t* len) {
- *len = left_;
- return ptr_;
-}
-
-void ByteArraySource::Skip(size_t n) {
- left_ -= n;
- ptr_ += n;
-}
-
-UncheckedByteArraySink::~UncheckedByteArraySink() { }
-
-void UncheckedByteArraySink::Append(const char* data, size_t n) {
- // Do no copying if the caller filled in the result of GetAppendBuffer()
- if (data != dest_) {
- memcpy(dest_, data, n);
- }
- dest_ += n;
-}
-
-char* UncheckedByteArraySink::GetAppendBuffer(size_t len, char* scratch) {
- return dest_;
-}
-
-}
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#ifndef UTIL_SNAPPY_SNAPPY_SINKSOURCE_H_
-#define UTIL_SNAPPY_SNAPPY_SINKSOURCE_H_
-
-#include <stddef.h>
-
-
-namespace snappy {
-
-// A Sink is an interface that consumes a sequence of bytes.
-class Sink {
- public:
- Sink() { }
- virtual ~Sink();
-
- // Append "bytes[0,n-1]" to this.
- virtual void Append(const char* bytes, size_t n) = 0;
-
- // Returns a writable buffer of the specified length for appending.
- // May return a pointer to the caller-owned scratch buffer which
- // must have at least the indicated length. The returned buffer is
- // only valid until the next operation on this Sink.
- //
- // After writing at most "length" bytes, call Append() with the
- // pointer returned from this function and the number of bytes
- // written. Many Append() implementations will avoid copying
- // bytes if this function returned an internal buffer.
- //
- // If a non-scratch buffer is returned, the caller may only pass a
- // prefix of it to Append(). That is, it is not correct to pass an
- // interior pointer of the returned array to Append().
- //
- // The default implementation always returns the scratch buffer.
- virtual char* GetAppendBuffer(size_t length, char* scratch);
-
-
- private:
- // No copying
- Sink(const Sink&);
- void operator=(const Sink&);
-};
-
-// A Source is an interface that yields a sequence of bytes
-class Source {
- public:
- Source() { }
- virtual ~Source();
-
- // Return the number of bytes left to read from the source
- virtual size_t Available() const = 0;
-
- // Peek at the next flat region of the source. Does not reposition
- // the source. The returned region is empty iff Available()==0.
- //
- // Returns a pointer to the beginning of the region and store its
- // length in *len.
- //
- // The returned region is valid until the next call to Skip() or
- // until this object is destroyed, whichever occurs first.
- //
- // The returned region may be larger than Available() (for example
- // if this ByteSource is a view on a substring of a larger source).
- // The caller is responsible for ensuring that it only reads the
- // Available() bytes.
- virtual const char* Peek(size_t* len) = 0;
-
- // Skip the next n bytes. Invalidates any buffer returned by
- // a previous call to Peek().
- // REQUIRES: Available() >= n
- virtual void Skip(size_t n) = 0;
-
- private:
- // No copying
- Source(const Source&);
- void operator=(const Source&);
-};
-
-// A Source implementation that yields the contents of a flat array
-class ByteArraySource : public Source {
- public:
- ByteArraySource(const char* p, size_t n) : ptr_(p), left_(n) { }
- virtual ~ByteArraySource();
- virtual size_t Available() const;
- virtual const char* Peek(size_t* len);
- virtual void Skip(size_t n);
- private:
- const char* ptr_;
- size_t left_;
-};
-
-// A Sink implementation that writes to a flat array without any bound checks.
-class UncheckedByteArraySink : public Sink {
- public:
- explicit UncheckedByteArraySink(char* dest) : dest_(dest) { }
- virtual ~UncheckedByteArraySink();
- virtual void Append(const char* data, size_t n);
- virtual char* GetAppendBuffer(size_t len, char* scratch);
-
- // Return the current output pointer so that a caller can see how
- // many bytes were produced.
- // Note: this is not a Sink method.
- char* CurrentDestination() const { return dest_; }
- private:
- char* dest_;
-};
-
-
-}
-
-#endif // UTIL_SNAPPY_SNAPPY_SINKSOURCE_H_
+++ /dev/null
-# snappy-sinksource.lo - a libtool object file
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/snappy-sinksource.o'
-
-# Name of the non-PIC object
-non_pic_object='snappy-sinksource.o'
-
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include <algorithm>
-#include <string>
-
-#include "snappy-stubs-internal.h"
-
-namespace snappy {
-
-void Varint::Append32(string* s, uint32 value) {
- char buf[Varint::kMax32];
- const char* p = Varint::Encode32(buf, value);
- s->append(buf, p - buf);
-}
-
-} // namespace snappy
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Various stubs for the open-source version of Snappy.
-
-#ifndef UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_INTERNAL_H_
-#define UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_INTERNAL_H_
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <iostream>
-#include <string>
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
-#include "snappy-stubs-public.h"
-
-#if defined(__x86_64__)
-
-// Enable 64-bit optimized versions of some routines.
-#define ARCH_K8 1
-
-#endif
-
-// Needed by OS X, among others.
-#ifndef MAP_ANONYMOUS
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-
-// Pull in std::min, std::ostream, and the likes. This is safe because this
-// header file is never used from any public header files.
-using namespace std;
-
-// The size of an array, if known at compile-time.
-// Will give unexpected results if used on a pointer.
-// We undefine it first, since some compilers already have a definition.
-#ifdef ARRAYSIZE
-#undef ARRAYSIZE
-#endif
-#define ARRAYSIZE(a) (sizeof(a) / sizeof(*(a)))
-
-// Static prediction hints.
-#ifdef HAVE_BUILTIN_EXPECT
-#define PREDICT_FALSE(x) (__builtin_expect(x, 0))
-#define PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
-#else
-#define PREDICT_FALSE(x) x
-#define PREDICT_TRUE(x) x
-#endif
-
-// This is only used for recomputing the tag byte table used during
-// decompression; for simplicity we just remove it from the open-source
-// version (anyone who wants to regenerate it can just do the call
-// themselves within main()).
-#define DEFINE_bool(flag_name, default_value, description) \
- bool FLAGS_ ## flag_name = default_value
-#define DECLARE_bool(flag_name) \
- extern bool FLAGS_ ## flag_name
-
-namespace snappy {
-
-static const uint32 kuint32max = static_cast<uint32>(0xFFFFFFFF);
-static const int64 kint64max = static_cast<int64>(0x7FFFFFFFFFFFFFFFLL);
-
-// Logging.
-
-#define LOG(level) LogMessage()
-#define VLOG(level) true ? (void)0 : \
- snappy::LogMessageVoidify() & snappy::LogMessage()
-
-class LogMessage {
- public:
- LogMessage() { }
- ~LogMessage() {
- cerr << endl;
- }
-
- LogMessage& operator<<(const std::string& msg) {
- cerr << msg;
- return *this;
- }
- LogMessage& operator<<(int x) {
- cerr << x;
- return *this;
- }
-};
-
-// Asserts, both versions activated in debug mode only,
-// and ones that are always active.
-
-#define CRASH_UNLESS(condition) \
- PREDICT_TRUE(condition) ? (void)0 : \
- snappy::LogMessageVoidify() & snappy::LogMessageCrash()
-
-class LogMessageCrash : public LogMessage {
- public:
- LogMessageCrash() { }
- ~LogMessageCrash() {
- cerr << endl;
- abort();
- }
-};
-
-// This class is used to explicitly ignore values in the conditional
-// logging macros. This avoids compiler warnings like "value computed
-// is not used" and "statement has no effect".
-
-class LogMessageVoidify {
- public:
- LogMessageVoidify() { }
- // This has to be an operator with a precedence lower than << but
- // higher than ?:
- void operator&(const LogMessage&) { }
-};
-
-#define CHECK(cond) CRASH_UNLESS(cond)
-#define CHECK_LE(a, b) CRASH_UNLESS((a) <= (b))
-#define CHECK_GE(a, b) CRASH_UNLESS((a) >= (b))
-#define CHECK_EQ(a, b) CRASH_UNLESS((a) == (b))
-#define CHECK_NE(a, b) CRASH_UNLESS((a) != (b))
-#define CHECK_LT(a, b) CRASH_UNLESS((a) < (b))
-#define CHECK_GT(a, b) CRASH_UNLESS((a) > (b))
-
-#ifdef NDEBUG
-
-#define DCHECK(cond) CRASH_UNLESS(true)
-#define DCHECK_LE(a, b) CRASH_UNLESS(true)
-#define DCHECK_GE(a, b) CRASH_UNLESS(true)
-#define DCHECK_EQ(a, b) CRASH_UNLESS(true)
-#define DCHECK_NE(a, b) CRASH_UNLESS(true)
-#define DCHECK_LT(a, b) CRASH_UNLESS(true)
-#define DCHECK_GT(a, b) CRASH_UNLESS(true)
-
-#else
-
-#define DCHECK(cond) CHECK(cond)
-#define DCHECK_LE(a, b) CHECK_LE(a, b)
-#define DCHECK_GE(a, b) CHECK_GE(a, b)
-#define DCHECK_EQ(a, b) CHECK_EQ(a, b)
-#define DCHECK_NE(a, b) CHECK_NE(a, b)
-#define DCHECK_LT(a, b) CHECK_LT(a, b)
-#define DCHECK_GT(a, b) CHECK_GT(a, b)
-
-#endif
-
-// Potentially unaligned loads and stores.
-
-// x86 and PowerPC can simply do these loads and stores native.
-
-#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__)
-
-#define UNALIGNED_LOAD16(_p) (*reinterpret_cast<const uint16 *>(_p))
-#define UNALIGNED_LOAD32(_p) (*reinterpret_cast<const uint32 *>(_p))
-#define UNALIGNED_LOAD64(_p) (*reinterpret_cast<const uint64 *>(_p))
-
-#define UNALIGNED_STORE16(_p, _val) (*reinterpret_cast<uint16 *>(_p) = (_val))
-#define UNALIGNED_STORE32(_p, _val) (*reinterpret_cast<uint32 *>(_p) = (_val))
-#define UNALIGNED_STORE64(_p, _val) (*reinterpret_cast<uint64 *>(_p) = (_val))
-
-// ARMv7 and newer support native unaligned accesses, but only of 16-bit
-// and 32-bit values (not 64-bit); older versions either raise a fatal signal,
-// do an unaligned read and rotate the words around a bit, or do the reads very
-// slowly (trip through kernel mode). There's no simple #define that says just
-// “ARMv7 or higher”, so we have to filter away all ARMv5 and ARMv6
-// sub-architectures.
-//
-// This is a mess, but there's not much we can do about it.
-
-#elif defined(__arm__) && \
- !defined(__ARM_ARCH_5__) && \
- !defined(__ARM_ARCH_5T__) && \
- !defined(__ARM_ARCH_5TE__) && \
- !defined(__ARM_ARCH_5TEJ__) && \
- !defined(__ARM_ARCH_6__) && \
- !defined(__ARM_ARCH_6J__) && \
- !defined(__ARM_ARCH_6K__) && \
- !defined(__ARM_ARCH_6Z__) && \
- !defined(__ARM_ARCH_6ZK__) && \
- !defined(__ARM_ARCH_6T2__)
-
-#define UNALIGNED_LOAD16(_p) (*reinterpret_cast<const uint16 *>(_p))
-#define UNALIGNED_LOAD32(_p) (*reinterpret_cast<const uint32 *>(_p))
-
-#define UNALIGNED_STORE16(_p, _val) (*reinterpret_cast<uint16 *>(_p) = (_val))
-#define UNALIGNED_STORE32(_p, _val) (*reinterpret_cast<uint32 *>(_p) = (_val))
-
-// TODO(user): NEON supports unaligned 64-bit loads and stores.
-// See if that would be more efficient on platforms supporting it,
-// at least for copies.
-
-inline uint64 UNALIGNED_LOAD64(const void *p) {
- uint64 t;
- memcpy(&t, p, sizeof t);
- return t;
-}
-
-inline void UNALIGNED_STORE64(void *p, uint64 v) {
- memcpy(p, &v, sizeof v);
-}
-
-#else
-
-// These functions are provided for architectures that don't support
-// unaligned loads and stores.
-
-inline uint16 UNALIGNED_LOAD16(const void *p) {
- uint16 t;
- memcpy(&t, p, sizeof t);
- return t;
-}
-
-inline uint32 UNALIGNED_LOAD32(const void *p) {
- uint32 t;
- memcpy(&t, p, sizeof t);
- return t;
-}
-
-inline uint64 UNALIGNED_LOAD64(const void *p) {
- uint64 t;
- memcpy(&t, p, sizeof t);
- return t;
-}
-
-inline void UNALIGNED_STORE16(void *p, uint16 v) {
- memcpy(p, &v, sizeof v);
-}
-
-inline void UNALIGNED_STORE32(void *p, uint32 v) {
- memcpy(p, &v, sizeof v);
-}
-
-inline void UNALIGNED_STORE64(void *p, uint64 v) {
- memcpy(p, &v, sizeof v);
-}
-
-#endif
-
-// This can be more efficient than UNALIGNED_LOAD64 + UNALIGNED_STORE64
-// on some platforms, in particular ARM.
-inline void UnalignedCopy64(const void *src, void *dst) {
- if (sizeof(void *) == 8) {
- UNALIGNED_STORE64(dst, UNALIGNED_LOAD64(src));
- } else {
- const char *src_char = reinterpret_cast<const char *>(src);
- char *dst_char = reinterpret_cast<char *>(dst);
-
- UNALIGNED_STORE32(dst_char, UNALIGNED_LOAD32(src_char));
- UNALIGNED_STORE32(dst_char + 4, UNALIGNED_LOAD32(src_char + 4));
- }
-}
-
-// The following guarantees declaration of the byte swap functions.
-#ifdef WORDS_BIGENDIAN
-
-#ifdef HAVE_SYS_BYTEORDER_H
-#include <sys/byteorder.h>
-#endif
-
-#ifdef HAVE_SYS_ENDIAN_H
-#include <sys/endian.h>
-#endif
-
-#ifdef _MSC_VER
-#include <stdlib.h>
-#define bswap_16(x) _byteswap_ushort(x)
-#define bswap_32(x) _byteswap_ulong(x)
-#define bswap_64(x) _byteswap_uint64(x)
-
-#elif defined(__APPLE__)
-// Mac OS X / Darwin features
-#include <libkern/OSByteOrder.h>
-#define bswap_16(x) OSSwapInt16(x)
-#define bswap_32(x) OSSwapInt32(x)
-#define bswap_64(x) OSSwapInt64(x)
-
-#elif defined(HAVE_BYTESWAP_H)
-#include <byteswap.h>
-
-#elif defined(bswap32)
-// FreeBSD defines bswap{16,32,64} in <sys/endian.h> (already #included).
-#define bswap_16(x) bswap16(x)
-#define bswap_32(x) bswap32(x)
-#define bswap_64(x) bswap64(x)
-
-#elif defined(BSWAP_64)
-// Solaris 10 defines BSWAP_{16,32,64} in <sys/byteorder.h> (already #included).
-#define bswap_16(x) BSWAP_16(x)
-#define bswap_32(x) BSWAP_32(x)
-#define bswap_64(x) BSWAP_64(x)
-
-#else
-
-inline uint16 bswap_16(uint16 x) {
- return (x << 8) | (x >> 8);
-}
-
-inline uint32 bswap_32(uint32 x) {
- x = ((x & 0xff00ff00UL) >> 8) | ((x & 0x00ff00ffUL) << 8);
- return (x >> 16) | (x << 16);
-}
-
-inline uint64 bswap_64(uint64 x) {
- x = ((x & 0xff00ff00ff00ff00ULL) >> 8) | ((x & 0x00ff00ff00ff00ffULL) << 8);
- x = ((x & 0xffff0000ffff0000ULL) >> 16) | ((x & 0x0000ffff0000ffffULL) << 16);
- return (x >> 32) | (x << 32);
-}
-
-#endif
-
-#endif // WORDS_BIGENDIAN
-
-// Convert to little-endian storage, opposite of network format.
-// Convert x from host to little endian: x = LittleEndian.FromHost(x);
-// convert x from little endian to host: x = LittleEndian.ToHost(x);
-//
-// Store values into unaligned memory converting to little endian order:
-// LittleEndian.Store16(p, x);
-//
-// Load unaligned values stored in little endian converting to host order:
-// x = LittleEndian.Load16(p);
-class LittleEndian {
- public:
- // Conversion functions.
-#ifdef WORDS_BIGENDIAN
-
- static uint16 FromHost16(uint16 x) { return bswap_16(x); }
- static uint16 ToHost16(uint16 x) { return bswap_16(x); }
-
- static uint32 FromHost32(uint32 x) { return bswap_32(x); }
- static uint32 ToHost32(uint32 x) { return bswap_32(x); }
-
- static bool IsLittleEndian() { return false; }
-
-#else // !defined(WORDS_BIGENDIAN)
-
- static uint16 FromHost16(uint16 x) { return x; }
- static uint16 ToHost16(uint16 x) { return x; }
-
- static uint32 FromHost32(uint32 x) { return x; }
- static uint32 ToHost32(uint32 x) { return x; }
-
- static bool IsLittleEndian() { return true; }
-
-#endif // !defined(WORDS_BIGENDIAN)
-
- // Functions to do unaligned loads and stores in little-endian order.
- static uint16 Load16(const void *p) {
- return ToHost16(UNALIGNED_LOAD16(p));
- }
-
- static void Store16(void *p, uint16 v) {
- UNALIGNED_STORE16(p, FromHost16(v));
- }
-
- static uint32 Load32(const void *p) {
- return ToHost32(UNALIGNED_LOAD32(p));
- }
-
- static void Store32(void *p, uint32 v) {
- UNALIGNED_STORE32(p, FromHost32(v));
- }
-};
-
-// Some bit-manipulation functions.
-class Bits {
- public:
- // Return floor(log2(n)) for positive integer n. Returns -1 iff n == 0.
- static int Log2Floor(uint32 n);
-
- // Return the first set least / most significant bit, 0-indexed. Returns an
- // undefined value if n == 0. FindLSBSetNonZero() is similar to ffs() except
- // that it's 0-indexed.
- static int FindLSBSetNonZero(uint32 n);
- static int FindLSBSetNonZero64(uint64 n);
-
- private:
- DISALLOW_COPY_AND_ASSIGN(Bits);
-};
-
-#ifdef HAVE_BUILTIN_CTZ
-
-inline int Bits::Log2Floor(uint32 n) {
- return n == 0 ? -1 : 31 ^ __builtin_clz(n);
-}
-
-inline int Bits::FindLSBSetNonZero(uint32 n) {
- return __builtin_ctz(n);
-}
-
-inline int Bits::FindLSBSetNonZero64(uint64 n) {
- return __builtin_ctzll(n);
-}
-
-#else // Portable versions.
-
-inline int Bits::Log2Floor(uint32 n) {
- if (n == 0)
- return -1;
- int log = 0;
- uint32 value = n;
- for (int i = 4; i >= 0; --i) {
- int shift = (1 << i);
- uint32 x = value >> shift;
- if (x != 0) {
- value = x;
- log += shift;
- }
- }
- assert(value == 1);
- return log;
-}
-
-inline int Bits::FindLSBSetNonZero(uint32 n) {
- int rc = 31;
- for (int i = 4, shift = 1 << 4; i >= 0; --i) {
- const uint32 x = n << shift;
- if (x != 0) {
- n = x;
- rc -= shift;
- }
- shift >>= 1;
- }
- return rc;
-}
-
-// FindLSBSetNonZero64() is defined in terms of FindLSBSetNonZero().
-inline int Bits::FindLSBSetNonZero64(uint64 n) {
- const uint32 bottombits = static_cast<uint32>(n);
- if (bottombits == 0) {
- // Bottom bits are zero, so scan in top bits
- return 32 + FindLSBSetNonZero(static_cast<uint32>(n >> 32));
- } else {
- return FindLSBSetNonZero(bottombits);
- }
-}
-
-#endif // End portable versions.
-
-// Variable-length integer encoding.
-class Varint {
- public:
- // Maximum lengths of varint encoding of uint32.
- static const int kMax32 = 5;
-
- // Attempts to parse a varint32 from a prefix of the bytes in [ptr,limit-1].
- // Never reads a character at or beyond limit. If a valid/terminated varint32
- // was found in the range, stores it in *OUTPUT and returns a pointer just
- // past the last byte of the varint32. Else returns NULL. On success,
- // "result <= limit".
- static const char* Parse32WithLimit(const char* ptr, const char* limit,
- uint32* OUTPUT);
-
- // REQUIRES "ptr" points to a buffer of length sufficient to hold "v".
- // EFFECTS Encodes "v" into "ptr" and returns a pointer to the
- // byte just past the last encoded byte.
- static char* Encode32(char* ptr, uint32 v);
-
- // EFFECTS Appends the varint representation of "value" to "*s".
- static void Append32(string* s, uint32 value);
-};
-
-inline const char* Varint::Parse32WithLimit(const char* p,
- const char* l,
- uint32* OUTPUT) {
- const unsigned char* ptr = reinterpret_cast<const unsigned char*>(p);
- const unsigned char* limit = reinterpret_cast<const unsigned char*>(l);
- uint32 b, result;
- if (ptr >= limit) return NULL;
- b = *(ptr++); result = b & 127; if (b < 128) goto done;
- if (ptr >= limit) return NULL;
- b = *(ptr++); result |= (b & 127) << 7; if (b < 128) goto done;
- if (ptr >= limit) return NULL;
- b = *(ptr++); result |= (b & 127) << 14; if (b < 128) goto done;
- if (ptr >= limit) return NULL;
- b = *(ptr++); result |= (b & 127) << 21; if (b < 128) goto done;
- if (ptr >= limit) return NULL;
- b = *(ptr++); result |= (b & 127) << 28; if (b < 16) goto done;
- return NULL; // Value is too long to be a varint32
- done:
- *OUTPUT = result;
- return reinterpret_cast<const char*>(ptr);
-}
-
-inline char* Varint::Encode32(char* sptr, uint32 v) {
- // Operate on characters as unsigneds
- unsigned char* ptr = reinterpret_cast<unsigned char*>(sptr);
- static const int B = 128;
- if (v < (1<<7)) {
- *(ptr++) = v;
- } else if (v < (1<<14)) {
- *(ptr++) = v | B;
- *(ptr++) = v>>7;
- } else if (v < (1<<21)) {
- *(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = v>>14;
- } else if (v < (1<<28)) {
- *(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = (v>>14) | B;
- *(ptr++) = v>>21;
- } else {
- *(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = (v>>14) | B;
- *(ptr++) = (v>>21) | B;
- *(ptr++) = v>>28;
- }
- return reinterpret_cast<char*>(ptr);
-}
-
-// If you know the internal layout of the std::string in use, you can
-// replace this function with one that resizes the string without
-// filling the new space with zeros (if applicable) --
-// it will be non-portable but faster.
-inline void STLStringResizeUninitialized(string* s, size_t new_size) {
- s->resize(new_size);
-}
-
-// Return a mutable char* pointing to a string's internal buffer,
-// which may not be null-terminated. Writing through this pointer will
-// modify the string.
-//
-// string_as_array(&str)[i] is valid for 0 <= i < str.size() until the
-// next call to a string method that invalidates iterators.
-//
-// As of 2006-04, there is no standard-blessed way of getting a
-// mutable reference to a string's internal buffer. However, issue 530
-// (http://www.open-std.org/JTC1/SC22/WG21/docs/lwg-defects.html#530)
-// proposes this as the method. It will officially be part of the standard
-// for C++0x. This should already work on all current implementations.
-inline char* string_as_array(string* str) {
- return str->empty() ? NULL : &*str->begin();
-}
-
-} // namespace snappy
-
-#endif // UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_INTERNAL_H_
+++ /dev/null
-# snappy-stubs-internal.lo - a libtool object file
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/snappy-stubs-internal.o'
-
-# Name of the non-PIC object
-non_pic_object='snappy-stubs-internal.o'
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright 2011 Google Inc. All Rights Reserved.
-// Author: sesse@google.com (Steinar H. Gunderson)
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Various type stubs for the open-source version of Snappy.
-//
-// This file cannot include config.h, as it is included from snappy.h,
-// which is a public header. Instead, snappy-stubs-public.h is generated by
-// from snappy-stubs-public.h.in at configure time.
-
-#ifndef UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
-#define UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
-
-#if 1
-#include <stdint.h>
-#endif
-
-#if 1
-#include <stddef.h>
-#endif
-
-#define SNAPPY_MAJOR 1
-#define SNAPPY_MINOR 0
-#define SNAPPY_PATCHLEVEL 5
-#define SNAPPY_VERSION \
- ((SNAPPY_MAJOR << 16) | (SNAPPY_MINOR << 8) | SNAPPY_PATCHLEVEL)
-
-#include <string>
-
-namespace snappy {
-
-#if 1
-typedef int8_t int8;
-typedef uint8_t uint8;
-typedef int16_t int16;
-typedef uint16_t uint16;
-typedef int32_t int32;
-typedef uint32_t uint32;
-typedef int64_t int64;
-typedef uint64_t uint64;
-#else
-typedef signed char int8;
-typedef unsigned char uint8;
-typedef short int16;
-typedef unsigned short uint16;
-typedef int int32;
-typedef unsigned int uint32;
-typedef long long int64;
-typedef unsigned long long uint64;
-#endif
-
-typedef std::string string;
-
-#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&); \
- void operator=(const TypeName&)
-
-} // namespace snappy
-
-#endif // UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-// Author: sesse@google.com (Steinar H. Gunderson)
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Various type stubs for the open-source version of Snappy.
-//
-// This file cannot include config.h, as it is included from snappy.h,
-// which is a public header. Instead, snappy-stubs-public.h is generated by
-// from snappy-stubs-public.h.in at configure time.
-
-#ifndef UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
-#define UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
-
-#if @ac_cv_have_stdint_h@
-#include <stdint.h>
-#endif
-
-#if @ac_cv_have_stddef_h@
-#include <stddef.h>
-#endif
-
-#define SNAPPY_MAJOR @SNAPPY_MAJOR@
-#define SNAPPY_MINOR @SNAPPY_MINOR@
-#define SNAPPY_PATCHLEVEL @SNAPPY_PATCHLEVEL@
-#define SNAPPY_VERSION \
- ((SNAPPY_MAJOR << 16) | (SNAPPY_MINOR << 8) | SNAPPY_PATCHLEVEL)
-
-#include <string>
-
-namespace snappy {
-
-#if @ac_cv_have_stdint_h@
-typedef int8_t int8;
-typedef uint8_t uint8;
-typedef int16_t int16;
-typedef uint16_t uint16;
-typedef int32_t int32;
-typedef uint32_t uint32;
-typedef int64_t int64;
-typedef uint64_t uint64;
-#else
-typedef signed char int8;
-typedef unsigned char uint8;
-typedef short int16;
-typedef unsigned short uint16;
-typedef int int32;
-typedef unsigned int uint32;
-typedef long long int64;
-typedef unsigned long long uint64;
-#endif
-
-typedef std::string string;
-
-#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&); \
- void operator=(const TypeName&)
-
-} // namespace snappy
-
-#endif // UTIL_SNAPPY_OPENSOURCE_SNAPPY_STUBS_PUBLIC_H_
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Various stubs for the unit tests for the open-source version of Snappy.
-
-#include "snappy-test.h"
-
-#ifdef HAVE_WINDOWS_H
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
-
-#include <algorithm>
-
-DEFINE_bool(run_microbenchmarks, true,
- "Run microbenchmarks before doing anything else.");
-
-namespace snappy {
-
-string ReadTestDataFile(const string& base) {
- string contents;
- const char* srcdir = getenv("srcdir"); // This is set by Automake.
- if (srcdir) {
- File::ReadFileToStringOrDie(
- string(srcdir) + "/testdata/" + base, &contents);
- } else {
- File::ReadFileToStringOrDie("testdata/" + base, &contents);
- }
- return contents;
-}
-
-string StringPrintf(const char* format, ...) {
- char buf[4096];
- va_list ap;
- va_start(ap, format);
- vsnprintf(buf, sizeof(buf), format, ap);
- va_end(ap);
- return buf;
-}
-
-bool benchmark_running = false;
-int64 benchmark_real_time_us = 0;
-int64 benchmark_cpu_time_us = 0;
-string *benchmark_label = NULL;
-int64 benchmark_bytes_processed = 0;
-
-void ResetBenchmarkTiming() {
- benchmark_real_time_us = 0;
- benchmark_cpu_time_us = 0;
-}
-
-#ifdef WIN32
-LARGE_INTEGER benchmark_start_real;
-FILETIME benchmark_start_cpu;
-#else // WIN32
-struct timeval benchmark_start_real;
-struct rusage benchmark_start_cpu;
-#endif // WIN32
-
-void StartBenchmarkTiming() {
-#ifdef WIN32
- QueryPerformanceCounter(&benchmark_start_real);
- FILETIME dummy;
- CHECK(GetProcessTimes(
- GetCurrentProcess(), &dummy, &dummy, &dummy, &benchmark_start_cpu));
-#else
- gettimeofday(&benchmark_start_real, NULL);
- if (getrusage(RUSAGE_SELF, &benchmark_start_cpu) == -1) {
- perror("getrusage(RUSAGE_SELF)");
- exit(1);
- }
-#endif
- benchmark_running = true;
-}
-
-void StopBenchmarkTiming() {
- if (!benchmark_running) {
- return;
- }
-
-#ifdef WIN32
- LARGE_INTEGER benchmark_stop_real;
- LARGE_INTEGER benchmark_frequency;
- QueryPerformanceCounter(&benchmark_stop_real);
- QueryPerformanceFrequency(&benchmark_frequency);
-
- double elapsed_real = static_cast<double>(
- benchmark_stop_real.QuadPart - benchmark_start_real.QuadPart) /
- benchmark_frequency.QuadPart;
- benchmark_real_time_us += elapsed_real * 1e6 + 0.5;
-
- FILETIME benchmark_stop_cpu, dummy;
- CHECK(GetProcessTimes(
- GetCurrentProcess(), &dummy, &dummy, &dummy, &benchmark_stop_cpu));
-
- ULARGE_INTEGER start_ulargeint;
- start_ulargeint.LowPart = benchmark_start_cpu.dwLowDateTime;
- start_ulargeint.HighPart = benchmark_start_cpu.dwHighDateTime;
-
- ULARGE_INTEGER stop_ulargeint;
- stop_ulargeint.LowPart = benchmark_stop_cpu.dwLowDateTime;
- stop_ulargeint.HighPart = benchmark_stop_cpu.dwHighDateTime;
-
- benchmark_cpu_time_us +=
- (stop_ulargeint.QuadPart - start_ulargeint.QuadPart + 5) / 10;
-#else // WIN32
- struct timeval benchmark_stop_real;
- gettimeofday(&benchmark_stop_real, NULL);
- benchmark_real_time_us +=
- 1000000 * (benchmark_stop_real.tv_sec - benchmark_start_real.tv_sec);
- benchmark_real_time_us +=
- (benchmark_stop_real.tv_usec - benchmark_start_real.tv_usec);
-
- struct rusage benchmark_stop_cpu;
- if (getrusage(RUSAGE_SELF, &benchmark_stop_cpu) == -1) {
- perror("getrusage(RUSAGE_SELF)");
- exit(1);
- }
- benchmark_cpu_time_us += 1000000 * (benchmark_stop_cpu.ru_utime.tv_sec -
- benchmark_start_cpu.ru_utime.tv_sec);
- benchmark_cpu_time_us += (benchmark_stop_cpu.ru_utime.tv_usec -
- benchmark_start_cpu.ru_utime.tv_usec);
-#endif // WIN32
-
- benchmark_running = false;
-}
-
-void SetBenchmarkLabel(const string& str) {
- if (benchmark_label) {
- delete benchmark_label;
- }
- benchmark_label = new string(str);
-}
-
-void SetBenchmarkBytesProcessed(int64 bytes) {
- benchmark_bytes_processed = bytes;
-}
-
-struct BenchmarkRun {
- int64 real_time_us;
- int64 cpu_time_us;
-};
-
-struct BenchmarkCompareCPUTime {
- bool operator() (const BenchmarkRun& a, const BenchmarkRun& b) const {
- return a.cpu_time_us < b.cpu_time_us;
- }
-};
-
-void Benchmark::Run() {
- for (int test_case_num = start_; test_case_num <= stop_; ++test_case_num) {
- // Run a few iterations first to find out approximately how fast
- // the benchmark is.
- const int kCalibrateIterations = 100;
- ResetBenchmarkTiming();
- StartBenchmarkTiming();
- (*function_)(kCalibrateIterations, test_case_num);
- StopBenchmarkTiming();
-
- // Let each test case run for about 200ms, but at least as many
- // as we used to calibrate.
- // Run five times and pick the median.
- const int kNumRuns = 5;
- const int kMedianPos = kNumRuns / 2;
- int num_iterations = 0;
- if (benchmark_real_time_us > 0) {
- num_iterations = 200000 * kCalibrateIterations / benchmark_real_time_us;
- }
- num_iterations = max(num_iterations, kCalibrateIterations);
- BenchmarkRun benchmark_runs[kNumRuns];
-
- for (int run = 0; run < kNumRuns; ++run) {
- ResetBenchmarkTiming();
- StartBenchmarkTiming();
- (*function_)(num_iterations, test_case_num);
- StopBenchmarkTiming();
-
- benchmark_runs[run].real_time_us = benchmark_real_time_us;
- benchmark_runs[run].cpu_time_us = benchmark_cpu_time_us;
- }
-
- nth_element(benchmark_runs,
- benchmark_runs + kMedianPos,
- benchmark_runs + kNumRuns,
- BenchmarkCompareCPUTime());
- int64 real_time_us = benchmark_runs[kMedianPos].real_time_us;
- int64 cpu_time_us = benchmark_runs[kMedianPos].cpu_time_us;
- int64 bytes_per_second = benchmark_bytes_processed * 1000000 / cpu_time_us;
-
- string heading = StringPrintf("%s/%d", name_.c_str(), test_case_num);
- string human_readable_speed;
- if (bytes_per_second < 1024) {
- human_readable_speed = StringPrintf("%dB/s", bytes_per_second);
- } else if (bytes_per_second < 1024 * 1024) {
- human_readable_speed = StringPrintf(
- "%.1fkB/s", bytes_per_second / 1024.0f);
- } else if (bytes_per_second < 1024 * 1024 * 1024) {
- human_readable_speed = StringPrintf(
- "%.1fMB/s", bytes_per_second / (1024.0f * 1024.0f));
- } else {
- human_readable_speed = StringPrintf(
- "%.1fGB/s", bytes_per_second / (1024.0f * 1024.0f * 1024.0f));
- }
-
- fprintf(stderr,
-#ifdef WIN32
- "%-18s %10I64d %10I64d %10d %s %s\n",
-#else
- "%-18s %10lld %10lld %10d %s %s\n",
-#endif
- heading.c_str(),
- static_cast<long long>(real_time_us * 1000 / num_iterations),
- static_cast<long long>(cpu_time_us * 1000 / num_iterations),
- num_iterations,
- human_readable_speed.c_str(),
- benchmark_label->c_str());
- }
-}
-
-#ifdef HAVE_LIBZ
-
-ZLib::ZLib()
- : comp_init_(false),
- uncomp_init_(false) {
- Reinit();
-}
-
-ZLib::~ZLib() {
- if (comp_init_) { deflateEnd(&comp_stream_); }
- if (uncomp_init_) { inflateEnd(&uncomp_stream_); }
-}
-
-void ZLib::Reinit() {
- compression_level_ = Z_DEFAULT_COMPRESSION;
- window_bits_ = MAX_WBITS;
- mem_level_ = 8; // DEF_MEM_LEVEL
- if (comp_init_) {
- deflateEnd(&comp_stream_);
- comp_init_ = false;
- }
- if (uncomp_init_) {
- inflateEnd(&uncomp_stream_);
- uncomp_init_ = false;
- }
- first_chunk_ = true;
-}
-
-void ZLib::Reset() {
- first_chunk_ = true;
-}
-
-// --------- COMPRESS MODE
-
-// Initialization method to be called if we hit an error while
-// compressing. On hitting an error, call this method before returning
-// the error.
-void ZLib::CompressErrorInit() {
- deflateEnd(&comp_stream_);
- comp_init_ = false;
- Reset();
-}
-
-int ZLib::DeflateInit() {
- return deflateInit2(&comp_stream_,
- compression_level_,
- Z_DEFLATED,
- window_bits_,
- mem_level_,
- Z_DEFAULT_STRATEGY);
-}
-
-int ZLib::CompressInit(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen) {
- int err;
-
- comp_stream_.next_in = (Bytef*)source;
- comp_stream_.avail_in = (uInt)*sourceLen;
- if ((uLong)comp_stream_.avail_in != *sourceLen) return Z_BUF_ERROR;
- comp_stream_.next_out = dest;
- comp_stream_.avail_out = (uInt)*destLen;
- if ((uLong)comp_stream_.avail_out != *destLen) return Z_BUF_ERROR;
-
- if ( !first_chunk_ ) // only need to set up stream the first time through
- return Z_OK;
-
- if (comp_init_) { // we've already initted it
- err = deflateReset(&comp_stream_);
- if (err != Z_OK) {
- LOG(WARNING) << "ERROR: Can't reset compress object; creating a new one";
- deflateEnd(&comp_stream_);
- comp_init_ = false;
- }
- }
- if (!comp_init_) { // first use
- comp_stream_.zalloc = (alloc_func)0;
- comp_stream_.zfree = (free_func)0;
- comp_stream_.opaque = (voidpf)0;
- err = DeflateInit();
- if (err != Z_OK) return err;
- comp_init_ = true;
- }
- return Z_OK;
-}
-
-// In a perfect world we'd always have the full buffer to compress
-// when the time came, and we could just call Compress(). Alas, we
-// want to do chunked compression on our webserver. In this
-// application, we compress the header, send it off, then compress the
-// results, send them off, then compress the footer. Thus we need to
-// use the chunked compression features of zlib.
-int ZLib::CompressAtMostOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen,
- int flush_mode) { // Z_FULL_FLUSH or Z_FINISH
- int err;
-
- if ( (err=CompressInit(dest, destLen, source, sourceLen)) != Z_OK )
- return err;
-
- // This is used to figure out how many bytes we wrote *this chunk*
- int compressed_size = comp_stream_.total_out;
-
- // Some setup happens only for the first chunk we compress in a run
- if ( first_chunk_ ) {
- first_chunk_ = false;
- }
-
- // flush_mode is Z_FINISH for all mode, Z_SYNC_FLUSH for incremental
- // compression.
- err = deflate(&comp_stream_, flush_mode);
-
- *sourceLen = comp_stream_.avail_in;
-
- if ((err == Z_STREAM_END || err == Z_OK)
- && comp_stream_.avail_in == 0
- && comp_stream_.avail_out != 0 ) {
- // we processed everything ok and the output buffer was large enough.
- ;
- } else if (err == Z_STREAM_END && comp_stream_.avail_in > 0) {
- return Z_BUF_ERROR; // should never happen
- } else if (err != Z_OK && err != Z_STREAM_END && err != Z_BUF_ERROR) {
- // an error happened
- CompressErrorInit();
- return err;
- } else if (comp_stream_.avail_out == 0) { // not enough space
- err = Z_BUF_ERROR;
- }
-
- assert(err == Z_OK || err == Z_STREAM_END || err == Z_BUF_ERROR);
- if (err == Z_STREAM_END)
- err = Z_OK;
-
- // update the crc and other metadata
- compressed_size = comp_stream_.total_out - compressed_size; // delta
- *destLen = compressed_size;
-
- return err;
-}
-
-int ZLib::CompressChunkOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen,
- int flush_mode) { // Z_FULL_FLUSH or Z_FINISH
- const int ret =
- CompressAtMostOrAll(dest, destLen, source, &sourceLen, flush_mode);
- if (ret == Z_BUF_ERROR)
- CompressErrorInit();
- return ret;
-}
-
-// This routine only initializes the compression stream once. Thereafter, it
-// just does a deflateReset on the stream, which should be faster.
-int ZLib::Compress(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen) {
- int err;
- if ( (err=CompressChunkOrAll(dest, destLen, source, sourceLen,
- Z_FINISH)) != Z_OK )
- return err;
- Reset(); // reset for next call to Compress
-
- return Z_OK;
-}
-
-
-// --------- UNCOMPRESS MODE
-
-int ZLib::InflateInit() {
- return inflateInit2(&uncomp_stream_, MAX_WBITS);
-}
-
-// Initialization method to be called if we hit an error while
-// uncompressing. On hitting an error, call this method before
-// returning the error.
-void ZLib::UncompressErrorInit() {
- inflateEnd(&uncomp_stream_);
- uncomp_init_ = false;
- Reset();
-}
-
-int ZLib::UncompressInit(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen) {
- int err;
-
- uncomp_stream_.next_in = (Bytef*)source;
- uncomp_stream_.avail_in = (uInt)*sourceLen;
- // Check for source > 64K on 16-bit machine:
- if ((uLong)uncomp_stream_.avail_in != *sourceLen) return Z_BUF_ERROR;
-
- uncomp_stream_.next_out = dest;
- uncomp_stream_.avail_out = (uInt)*destLen;
- if ((uLong)uncomp_stream_.avail_out != *destLen) return Z_BUF_ERROR;
-
- if ( !first_chunk_ ) // only need to set up stream the first time through
- return Z_OK;
-
- if (uncomp_init_) { // we've already initted it
- err = inflateReset(&uncomp_stream_);
- if (err != Z_OK) {
- LOG(WARNING)
- << "ERROR: Can't reset uncompress object; creating a new one";
- UncompressErrorInit();
- }
- }
- if (!uncomp_init_) {
- uncomp_stream_.zalloc = (alloc_func)0;
- uncomp_stream_.zfree = (free_func)0;
- uncomp_stream_.opaque = (voidpf)0;
- err = InflateInit();
- if (err != Z_OK) return err;
- uncomp_init_ = true;
- }
- return Z_OK;
-}
-
-// If you compressed your data a chunk at a time, with CompressChunk,
-// you can uncompress it a chunk at a time with UncompressChunk.
-// Only difference bewteen chunked and unchunked uncompression
-// is the flush mode we use: Z_SYNC_FLUSH (chunked) or Z_FINISH (unchunked).
-int ZLib::UncompressAtMostOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen,
- int flush_mode) { // Z_SYNC_FLUSH or Z_FINISH
- int err = Z_OK;
-
- if ( (err=UncompressInit(dest, destLen, source, sourceLen)) != Z_OK ) {
- LOG(WARNING) << "UncompressInit: Error: " << err << " SourceLen: "
- << *sourceLen;
- return err;
- }
-
- // This is used to figure out how many output bytes we wrote *this chunk*:
- const uLong old_total_out = uncomp_stream_.total_out;
-
- // This is used to figure out how many input bytes we read *this chunk*:
- const uLong old_total_in = uncomp_stream_.total_in;
-
- // Some setup happens only for the first chunk we compress in a run
- if ( first_chunk_ ) {
- first_chunk_ = false; // so we don't do this again
-
- // For the first chunk *only* (to avoid infinite troubles), we let
- // there be no actual data to uncompress. This sometimes triggers
- // when the input is only the gzip header, say.
- if ( *sourceLen == 0 ) {
- *destLen = 0;
- return Z_OK;
- }
- }
-
- // We'll uncompress as much as we can. If we end OK great, otherwise
- // if we get an error that seems to be the gzip footer, we store the
- // gzip footer and return OK, otherwise we return the error.
-
- // flush_mode is Z_SYNC_FLUSH for chunked mode, Z_FINISH for all mode.
- err = inflate(&uncomp_stream_, flush_mode);
-
- // Figure out how many bytes of the input zlib slurped up:
- const uLong bytes_read = uncomp_stream_.total_in - old_total_in;
- CHECK_LE(source + bytes_read, source + *sourceLen);
- *sourceLen = uncomp_stream_.avail_in;
-
- if ((err == Z_STREAM_END || err == Z_OK) // everything went ok
- && uncomp_stream_.avail_in == 0) { // and we read it all
- ;
- } else if (err == Z_STREAM_END && uncomp_stream_.avail_in > 0) {
- LOG(WARNING)
- << "UncompressChunkOrAll: Received some extra data, bytes total: "
- << uncomp_stream_.avail_in << " bytes: "
- << string(reinterpret_cast<const char *>(uncomp_stream_.next_in),
- min(int(uncomp_stream_.avail_in), 20));
- UncompressErrorInit();
- return Z_DATA_ERROR; // what's the extra data for?
- } else if (err != Z_OK && err != Z_STREAM_END && err != Z_BUF_ERROR) {
- // an error happened
- LOG(WARNING) << "UncompressChunkOrAll: Error: " << err
- << " avail_out: " << uncomp_stream_.avail_out;
- UncompressErrorInit();
- return err;
- } else if (uncomp_stream_.avail_out == 0) {
- err = Z_BUF_ERROR;
- }
-
- assert(err == Z_OK || err == Z_BUF_ERROR || err == Z_STREAM_END);
- if (err == Z_STREAM_END)
- err = Z_OK;
-
- *destLen = uncomp_stream_.total_out - old_total_out; // size for this call
-
- return err;
-}
-
-int ZLib::UncompressChunkOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen,
- int flush_mode) { // Z_SYNC_FLUSH or Z_FINISH
- const int ret =
- UncompressAtMostOrAll(dest, destLen, source, &sourceLen, flush_mode);
- if (ret == Z_BUF_ERROR)
- UncompressErrorInit();
- return ret;
-}
-
-int ZLib::UncompressAtMost(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen) {
- return UncompressAtMostOrAll(dest, destLen, source, sourceLen, Z_SYNC_FLUSH);
-}
-
-// We make sure we've uncompressed everything, that is, the current
-// uncompress stream is at a compressed-buffer-EOF boundary. In gzip
-// mode, we also check the gzip footer to make sure we pass the gzip
-// consistency checks. We RETURN true iff both types of checks pass.
-bool ZLib::UncompressChunkDone() {
- assert(!first_chunk_ && uncomp_init_);
- // Make sure we're at the end-of-compressed-data point. This means
- // if we call inflate with Z_FINISH we won't consume any input or
- // write any output
- Bytef dummyin, dummyout;
- uLongf dummylen = 0;
- if ( UncompressChunkOrAll(&dummyout, &dummylen, &dummyin, 0, Z_FINISH)
- != Z_OK ) {
- return false;
- }
-
- // Make sure that when we exit, we can start a new round of chunks later
- Reset();
-
- return true;
-}
-
-// Uncompresses the source buffer into the destination buffer.
-// The destination buffer must be long enough to hold the entire
-// decompressed contents.
-//
-// We only initialize the uncomp_stream once. Thereafter, we use
-// inflateReset, which should be faster.
-//
-// Returns Z_OK on success, otherwise, it returns a zlib error code.
-int ZLib::Uncompress(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen) {
- int err;
- if ( (err=UncompressChunkOrAll(dest, destLen, source, sourceLen,
- Z_FINISH)) != Z_OK ) {
- Reset(); // let us try to compress again
- return err;
- }
- if ( !UncompressChunkDone() ) // calls Reset()
- return Z_DATA_ERROR;
- return Z_OK; // stream_end is ok
-}
-
-#endif // HAVE_LIBZ
-
-} // namespace snappy
+++ /dev/null
-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Various stubs for the unit tests for the open-source version of Snappy.
-
-#ifndef UTIL_SNAPPY_OPENSOURCE_SNAPPY_TEST_H_
-#define UTIL_SNAPPY_OPENSOURCE_SNAPPY_TEST_H_
-
-#include "snappy-stubs-internal.h"
-
-#include <stdio.h>
-#include <stdarg.h>
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
-#ifdef HAVE_SYS_RESOURCE_H
-#include <sys/resource.h>
-#endif
-
-#include <sys/time.h>
-
-#ifdef HAVE_WINDOWS_H
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
-
-#include <string>
-
-#ifdef HAVE_GTEST
-
-#include <gtest/gtest.h>
-#undef TYPED_TEST
-#define TYPED_TEST TEST
-#define INIT_GTEST(argc, argv) ::testing::InitGoogleTest(argc, *argv)
-
-#else
-
-// Stubs for if the user doesn't have Google Test installed.
-
-#define TEST(test_case, test_subcase) \
- void Test_ ## test_case ## _ ## test_subcase()
-#define INIT_GTEST(argc, argv)
-
-#define TYPED_TEST TEST
-#define EXPECT_EQ CHECK_EQ
-#define EXPECT_NE CHECK_NE
-#define EXPECT_FALSE(cond) CHECK(!(cond))
-
-#endif
-
-#ifdef HAVE_GFLAGS
-
-#include <gflags/gflags.h>
-
-// This is tricky; both gflags and Google Test want to look at the command line
-// arguments. Google Test seems to be the most happy with unknown arguments,
-// though, so we call it first and hope for the best.
-#define InitGoogle(argv0, argc, argv, remove_flags) \
- INIT_GTEST(argc, argv); \
- google::ParseCommandLineFlags(argc, argv, remove_flags);
-
-#else
-
-// If we don't have the gflags package installed, these can only be
-// changed at compile time.
-#define DEFINE_int32(flag_name, default_value, description) \
- static int FLAGS_ ## flag_name = default_value;
-
-#define InitGoogle(argv0, argc, argv, remove_flags) \
- INIT_GTEST(argc, argv)
-
-#endif
-
-#ifdef HAVE_LIBZ
-#include "zlib.h"
-#endif
-
-#ifdef HAVE_LIBLZO2
-#include "lzo/lzo1x.h"
-#endif
-
-#ifdef HAVE_LIBLZF
-extern "C" {
-#include "lzf.h"
-}
-#endif
-
-#ifdef HAVE_LIBFASTLZ
-#include "fastlz.h"
-#endif
-
-#ifdef HAVE_LIBQUICKLZ
-#include "quicklz.h"
-#endif
-
-namespace {
-namespace File {
- void Init() { }
-
- void ReadFileToStringOrDie(const char* filename, string* data) {
- FILE* fp = fopen(filename, "rb");
- if (fp == NULL) {
- perror(filename);
- exit(1);
- }
-
- data->clear();
- while (!feof(fp)) {
- char buf[4096];
- size_t ret = fread(buf, 1, 4096, fp);
- if (ret == 0 && ferror(fp)) {
- perror("fread");
- exit(1);
- }
- data->append(string(buf, ret));
- }
-
- fclose(fp);
- }
-
- void ReadFileToStringOrDie(const string& filename, string* data) {
- ReadFileToStringOrDie(filename.c_str(), data);
- }
-
- void WriteStringToFileOrDie(const string& str, const char* filename) {
- FILE* fp = fopen(filename, "wb");
- if (fp == NULL) {
- perror(filename);
- exit(1);
- }
-
- int ret = fwrite(str.data(), str.size(), 1, fp);
- if (ret != 1) {
- perror("fwrite");
- exit(1);
- }
-
- fclose(fp);
- }
-} // namespace File
-} // namespace
-
-namespace snappy {
-
-#define FLAGS_test_random_seed 301
-typedef string TypeParam;
-
-void Test_CorruptedTest_VerifyCorrupted();
-void Test_Snappy_SimpleTests();
-void Test_Snappy_MaxBlowup();
-void Test_Snappy_RandomData();
-void Test_Snappy_FourByteOffset();
-void Test_SnappyCorruption_TruncatedVarint();
-void Test_SnappyCorruption_UnterminatedVarint();
-void Test_Snappy_ReadPastEndOfBuffer();
-void Test_Snappy_FindMatchLength();
-void Test_Snappy_FindMatchLengthRandom();
-
-string ReadTestDataFile(const string& base);
-
-// A sprintf() variant that returns a std::string.
-// Not safe for general use due to truncation issues.
-string StringPrintf(const char* format, ...);
-
-// A simple, non-cryptographically-secure random generator.
-class ACMRandom {
- public:
- explicit ACMRandom(uint32 seed) : seed_(seed) {}
-
- int32 Next();
-
- int32 Uniform(int32 n) {
- return Next() % n;
- }
- uint8 Rand8() {
- return static_cast<uint8>((Next() >> 1) & 0x000000ff);
- }
- bool OneIn(int X) { return Uniform(X) == 0; }
-
- // Skewed: pick "base" uniformly from range [0,max_log] and then
- // return "base" random bits. The effect is to pick a number in the
- // range [0,2^max_log-1] with bias towards smaller numbers.
- int32 Skewed(int max_log);
-
- private:
- static const uint32 M = 2147483647L; // 2^31-1
- uint32 seed_;
-};
-
-inline int32 ACMRandom::Next() {
- static const uint64 A = 16807; // bits 14, 8, 7, 5, 2, 1, 0
- // We are computing
- // seed_ = (seed_ * A) % M, where M = 2^31-1
- //
- // seed_ must not be zero or M, or else all subsequent computed values
- // will be zero or M respectively. For all other values, seed_ will end
- // up cycling through every number in [1,M-1]
- uint64 product = seed_ * A;
-
- // Compute (product % M) using the fact that ((x << 31) % M) == x.
- seed_ = (product >> 31) + (product & M);
- // The first reduction may overflow by 1 bit, so we may need to repeat.
- // mod == M is not possible; using > allows the faster sign-bit-based test.
- if (seed_ > M) {
- seed_ -= M;
- }
- return seed_;
-}
-
-inline int32 ACMRandom::Skewed(int max_log) {
- const int32 base = (Next() - 1) % (max_log+1);
- return (Next() - 1) & ((1u << base)-1);
-}
-
-// A wall-time clock. This stub is not super-accurate, nor resistant to the
-// system time changing.
-class CycleTimer {
- public:
- CycleTimer() : real_time_us_(0) {}
-
- void Start() {
-#ifdef WIN32
- QueryPerformanceCounter(&start_);
-#else
- gettimeofday(&start_, NULL);
-#endif
- }
-
- void Stop() {
-#ifdef WIN32
- LARGE_INTEGER stop;
- LARGE_INTEGER frequency;
- QueryPerformanceCounter(&stop);
- QueryPerformanceFrequency(&frequency);
-
- double elapsed = static_cast<double>(stop.QuadPart - start_.QuadPart) /
- frequency.QuadPart;
- real_time_us_ += elapsed * 1e6 + 0.5;
-#else
- struct timeval stop;
- gettimeofday(&stop, NULL);
-
- real_time_us_ += 1000000 * (stop.tv_sec - start_.tv_sec);
- real_time_us_ += (stop.tv_usec - start_.tv_usec);
-#endif
- }
-
- double Get() {
- return real_time_us_ * 1e-6;
- }
-
- private:
- int64 real_time_us_;
-#ifdef WIN32
- LARGE_INTEGER start_;
-#else
- struct timeval start_;
-#endif
-};
-
-// Minimalistic microbenchmark framework.
-
-typedef void (*BenchmarkFunction)(int, int);
-
-class Benchmark {
- public:
- Benchmark(const string& name, BenchmarkFunction function) :
- name_(name), function_(function) {}
-
- Benchmark* DenseRange(int start, int stop) {
- start_ = start;
- stop_ = stop;
- return this;
- }
-
- void Run();
-
- private:
- const string name_;
- const BenchmarkFunction function_;
- int start_, stop_;
-};
-#define BENCHMARK(benchmark_name) \
- Benchmark* Benchmark_ ## benchmark_name = \
- (new Benchmark(#benchmark_name, benchmark_name))
-
-extern Benchmark* Benchmark_BM_UFlat;
-extern Benchmark* Benchmark_BM_UValidate;
-extern Benchmark* Benchmark_BM_ZFlat;
-
-void ResetBenchmarkTiming();
-void StartBenchmarkTiming();
-void StopBenchmarkTiming();
-void SetBenchmarkLabel(const string& str);
-void SetBenchmarkBytesProcessed(int64 bytes);
-
-#ifdef HAVE_LIBZ
-
-// Object-oriented wrapper around zlib.
-class ZLib {
- public:
- ZLib();
- ~ZLib();
-
- // Wipe a ZLib object to a virgin state. This differs from Reset()
- // in that it also breaks any state.
- void Reinit();
-
- // Call this to make a zlib buffer as good as new. Here's the only
- // case where they differ:
- // CompressChunk(a); CompressChunk(b); CompressChunkDone(); vs
- // CompressChunk(a); Reset(); CompressChunk(b); CompressChunkDone();
- // You'll want to use Reset(), then, when you interrupt a compress
- // (or uncompress) in the middle of a chunk and want to start over.
- void Reset();
-
- // According to the zlib manual, when you Compress, the destination
- // buffer must have size at least src + .1%*src + 12. This function
- // helps you calculate that. Augment this to account for a potential
- // gzip header and footer, plus a few bytes of slack.
- static int MinCompressbufSize(int uncompress_size) {
- return uncompress_size + uncompress_size/1000 + 40;
- }
-
- // Compresses the source buffer into the destination buffer.
- // sourceLen is the byte length of the source buffer.
- // Upon entry, destLen is the total size of the destination buffer,
- // which must be of size at least MinCompressbufSize(sourceLen).
- // Upon exit, destLen is the actual size of the compressed buffer.
- //
- // This function can be used to compress a whole file at once if the
- // input file is mmap'ed.
- //
- // Returns Z_OK if success, Z_MEM_ERROR if there was not
- // enough memory, Z_BUF_ERROR if there was not enough room in the
- // output buffer. Note that if the output buffer is exactly the same
- // size as the compressed result, we still return Z_BUF_ERROR.
- // (check CL#1936076)
- int Compress(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen);
-
- // Uncompresses the source buffer into the destination buffer.
- // The destination buffer must be long enough to hold the entire
- // decompressed contents.
- //
- // Returns Z_OK on success, otherwise, it returns a zlib error code.
- int Uncompress(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen);
-
- // Uncompress data one chunk at a time -- ie you can call this
- // more than once. To get this to work you need to call per-chunk
- // and "done" routines.
- //
- // Returns Z_OK if success, Z_MEM_ERROR if there was not
- // enough memory, Z_BUF_ERROR if there was not enough room in the
- // output buffer.
-
- int UncompressAtMost(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen);
-
- // Checks gzip footer information, as needed. Mostly this just
- // makes sure the checksums match. Whenever you call this, it
- // will assume the last 8 bytes from the previous UncompressChunk
- // call are the footer. Returns true iff everything looks ok.
- bool UncompressChunkDone();
-
- private:
- int InflateInit(); // sets up the zlib inflate structure
- int DeflateInit(); // sets up the zlib deflate structure
-
- // These init the zlib data structures for compressing/uncompressing
- int CompressInit(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen);
- int UncompressInit(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen);
- // Initialization method to be called if we hit an error while
- // uncompressing. On hitting an error, call this method before
- // returning the error.
- void UncompressErrorInit();
-
- // Helper function for Compress
- int CompressChunkOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen,
- int flush_mode);
- int CompressAtMostOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen,
- int flush_mode);
-
- // Likewise for UncompressAndUncompressChunk
- int UncompressChunkOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen,
- int flush_mode);
-
- int UncompressAtMostOrAll(Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong *sourceLen,
- int flush_mode);
-
- // Initialization method to be called if we hit an error while
- // compressing. On hitting an error, call this method before
- // returning the error.
- void CompressErrorInit();
-
- int compression_level_; // compression level
- int window_bits_; // log base 2 of the window size used in compression
- int mem_level_; // specifies the amount of memory to be used by
- // compressor (1-9)
- z_stream comp_stream_; // Zlib stream data structure
- bool comp_init_; // True if we have initialized comp_stream_
- z_stream uncomp_stream_; // Zlib stream data structure
- bool uncomp_init_; // True if we have initialized uncomp_stream_
-
- // These are used only with chunked compression.
- bool first_chunk_; // true if we need to emit headers with this chunk
-};
-
-#endif // HAVE_LIBZ
-
-} // namespace snappy
-
-DECLARE_bool(run_microbenchmarks);
-
-static void RunSpecifiedBenchmarks() {
- if (!FLAGS_run_microbenchmarks) {
- return;
- }
-
- fprintf(stderr, "Running microbenchmarks.\n");
-#ifndef NDEBUG
- fprintf(stderr, "WARNING: Compiled with assertions enabled, will be slow.\n");
-#endif
-#ifndef __OPTIMIZE__
- fprintf(stderr, "WARNING: Compiled without optimization, will be slow.\n");
-#endif
- fprintf(stderr, "Benchmark Time(ns) CPU(ns) Iterations\n");
- fprintf(stderr, "---------------------------------------------------\n");
-
- snappy::Benchmark_BM_UFlat->Run();
- snappy::Benchmark_BM_UValidate->Run();
- snappy::Benchmark_BM_ZFlat->Run();
-
- fprintf(stderr, "\n");
-}
-
-#ifndef HAVE_GTEST
-
-static inline int RUN_ALL_TESTS() {
- fprintf(stderr, "Running correctness tests.\n");
- snappy::Test_CorruptedTest_VerifyCorrupted();
- snappy::Test_Snappy_SimpleTests();
- snappy::Test_Snappy_MaxBlowup();
- snappy::Test_Snappy_RandomData();
- snappy::Test_Snappy_FourByteOffset();
- snappy::Test_SnappyCorruption_TruncatedVarint();
- snappy::Test_SnappyCorruption_UnterminatedVarint();
- snappy::Test_Snappy_ReadPastEndOfBuffer();
- snappy::Test_Snappy_FindMatchLength();
- snappy::Test_Snappy_FindMatchLengthRandom();
- fprintf(stderr, "All tests passed.\n");
-
- return 0;
-}
-
-#endif // HAVE_GTEST
-
-// For main().
-namespace snappy {
-
-static void CompressFile(const char* fname);
-static void UncompressFile(const char* fname);
-static void MeasureFile(const char* fname);
-
-} // namespace
-
-using snappy::CompressFile;
-using snappy::UncompressFile;
-using snappy::MeasureFile;
-
-#endif // UTIL_SNAPPY_OPENSOURCE_SNAPPY_TEST_H_
+++ /dev/null
-// Copyright 2005 Google Inc. All Rights Reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "snappy.h"
-#include "snappy-internal.h"
-#include "snappy-sinksource.h"
-
-#include <stdio.h>
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-
-namespace snappy {
-
-// Any hash function will produce a valid compressed bitstream, but a good
-// hash function reduces the number of collisions and thus yields better
-// compression for compressible input, and more speed for incompressible
-// input. Of course, it doesn't hurt if the hash function is reasonably fast
-// either, as it gets called a lot.
-static inline uint32 HashBytes(uint32 bytes, int shift) {
- uint32 kMul = 0x1e35a7bd;
- return (bytes * kMul) >> shift;
-}
-static inline uint32 Hash(const char* p, int shift) {
- return HashBytes(UNALIGNED_LOAD32(p), shift);
-}
-
-size_t MaxCompressedLength(size_t source_len) {
- // Compressed data can be defined as:
- // compressed := item* literal*
- // item := literal* copy
- //
- // The trailing literal sequence has a space blowup of at most 62/60
- // since a literal of length 60 needs one tag byte + one extra byte
- // for length information.
- //
- // Item blowup is trickier to measure. Suppose the "copy" op copies
- // 4 bytes of data. Because of a special check in the encoding code,
- // we produce a 4-byte copy only if the offset is < 65536. Therefore
- // the copy op takes 3 bytes to encode, and this type of item leads
- // to at most the 62/60 blowup for representing literals.
- //
- // Suppose the "copy" op copies 5 bytes of data. If the offset is big
- // enough, it will take 5 bytes to encode the copy op. Therefore the
- // worst case here is a one-byte literal followed by a five-byte copy.
- // I.e., 6 bytes of input turn into 7 bytes of "compressed" data.
- //
- // This last factor dominates the blowup, so the final estimate is:
- return 32 + source_len + source_len/6;
-}
-
-enum {
- LITERAL = 0,
- COPY_1_BYTE_OFFSET = 1, // 3 bit length + 3 bits of offset in opcode
- COPY_2_BYTE_OFFSET = 2,
- COPY_4_BYTE_OFFSET = 3
-};
-
-// Copy "len" bytes from "src" to "op", one byte at a time. Used for
-// handling COPY operations where the input and output regions may
-// overlap. For example, suppose:
-// src == "ab"
-// op == src + 2
-// len == 20
-// After IncrementalCopy(src, op, len), the result will have
-// eleven copies of "ab"
-// ababababababababababab
-// Note that this does not match the semantics of either memcpy()
-// or memmove().
-static inline void IncrementalCopy(const char* src, char* op, int len) {
- DCHECK_GT(len, 0);
- do {
- *op++ = *src++;
- } while (--len > 0);
-}
-
-// Equivalent to IncrementalCopy except that it can write up to ten extra
-// bytes after the end of the copy, and that it is faster.
-//
-// The main part of this loop is a simple copy of eight bytes at a time until
-// we've copied (at least) the requested amount of bytes. However, if op and
-// src are less than eight bytes apart (indicating a repeating pattern of
-// length < 8), we first need to expand the pattern in order to get the correct
-// results. For instance, if the buffer looks like this, with the eight-byte
-// <src> and <op> patterns marked as intervals:
-//
-// abxxxxxxxxxxxx
-// [------] src
-// [------] op
-//
-// a single eight-byte copy from <src> to <op> will repeat the pattern once,
-// after which we can move <op> two bytes without moving <src>:
-//
-// ababxxxxxxxxxx
-// [------] src
-// [------] op
-//
-// and repeat the exercise until the two no longer overlap.
-//
-// This allows us to do very well in the special case of one single byte
-// repeated many times, without taking a big hit for more general cases.
-//
-// The worst case of extra writing past the end of the match occurs when
-// op - src == 1 and len == 1; the last copy will read from byte positions
-// [0..7] and write to [4..11], whereas it was only supposed to write to
-// position 1. Thus, ten excess bytes.
-
-namespace {
-
-const int kMaxIncrementCopyOverflow = 10;
-
-} // namespace
-
-static inline void IncrementalCopyFastPath(const char* src, char* op, int len) {
- while (op - src < 8) {
- UnalignedCopy64(src, op);
- len -= op - src;
- op += op - src;
- }
- while (len > 0) {
- UnalignedCopy64(src, op);
- src += 8;
- op += 8;
- len -= 8;
- }
-}
-
-static inline char* EmitLiteral(char* op,
- const char* literal,
- int len,
- bool allow_fast_path) {
- int n = len - 1; // Zero-length literals are disallowed
- if (n < 60) {
- // Fits in tag byte
- *op++ = LITERAL | (n << 2);
-
- // The vast majority of copies are below 16 bytes, for which a
- // call to memcpy is overkill. This fast path can sometimes
- // copy up to 15 bytes too much, but that is okay in the
- // main loop, since we have a bit to go on for both sides:
- //
- // - The input will always have kInputMarginBytes = 15 extra
- // available bytes, as long as we're in the main loop, and
- // if not, allow_fast_path = false.
- // - The output will always have 32 spare bytes (see
- // MaxCompressedLength).
- if (allow_fast_path && len <= 16) {
- UnalignedCopy64(literal, op);
- UnalignedCopy64(literal + 8, op + 8);
- return op + len;
- }
- } else {
- // Encode in upcoming bytes
- char* base = op;
- int count = 0;
- op++;
- while (n > 0) {
- *op++ = n & 0xff;
- n >>= 8;
- count++;
- }
- assert(count >= 1);
- assert(count <= 4);
- *base = LITERAL | ((59+count) << 2);
- }
- memcpy(op, literal, len);
- return op + len;
-}
-
-static inline char* EmitCopyLessThan64(char* op, size_t offset, int len) {
- DCHECK_LE(len, 64);
- DCHECK_GE(len, 4);
- DCHECK_LT(offset, 65536);
-
- if ((len < 12) && (offset < 2048)) {
- size_t len_minus_4 = len - 4;
- assert(len_minus_4 < 8); // Must fit in 3 bits
- *op++ = COPY_1_BYTE_OFFSET | ((len_minus_4) << 2) | ((offset >> 8) << 5);
- *op++ = offset & 0xff;
- } else {
- *op++ = COPY_2_BYTE_OFFSET | ((len-1) << 2);
- LittleEndian::Store16(op, offset);
- op += 2;
- }
- return op;
-}
-
-static inline char* EmitCopy(char* op, size_t offset, int len) {
- // Emit 64 byte copies but make sure to keep at least four bytes reserved
- while (len >= 68) {
- op = EmitCopyLessThan64(op, offset, 64);
- len -= 64;
- }
-
- // Emit an extra 60 byte copy if have too much data to fit in one copy
- if (len > 64) {
- op = EmitCopyLessThan64(op, offset, 60);
- len -= 60;
- }
-
- // Emit remainder
- op = EmitCopyLessThan64(op, offset, len);
- return op;
-}
-
-
-bool GetUncompressedLength(const char* start, size_t n, size_t* result) {
- uint32 v = 0;
- const char* limit = start + n;
- if (Varint::Parse32WithLimit(start, limit, &v) != NULL) {
- *result = v;
- return true;
- } else {
- return false;
- }
-}
-
-namespace internal {
-uint16* WorkingMemory::GetHashTable(size_t input_size, int* table_size) {
- // Use smaller hash table when input.size() is smaller, since we
- // fill the table, incurring O(hash table size) overhead for
- // compression, and if the input is short, we won't need that
- // many hash table entries anyway.
- assert(kMaxHashTableSize >= 256);
- size_t htsize = 256;
- while (htsize < kMaxHashTableSize && htsize < input_size) {
- htsize <<= 1;
- }
- CHECK_EQ(0, htsize & (htsize - 1)) << ": must be power of two";
- CHECK_LE(htsize, kMaxHashTableSize) << ": hash table too large";
-
- uint16* table;
- if (htsize <= ARRAYSIZE(small_table_)) {
- table = small_table_;
- } else {
- if (large_table_ == NULL) {
- large_table_ = new uint16[kMaxHashTableSize];
- }
- table = large_table_;
- }
-
- *table_size = htsize;
- memset(table, 0, htsize * sizeof(*table));
- return table;
-}
-} // end namespace internal
-
-// For 0 <= offset <= 4, GetUint32AtOffset(GetEightBytesAt(p), offset) will
-// equal UNALIGNED_LOAD32(p + offset). Motivation: On x86-64 hardware we have
-// empirically found that overlapping loads such as
-// UNALIGNED_LOAD32(p) ... UNALIGNED_LOAD32(p+1) ... UNALIGNED_LOAD32(p+2)
-// are slower than UNALIGNED_LOAD64(p) followed by shifts and casts to uint32.
-//
-// We have different versions for 64- and 32-bit; ideally we would avoid the
-// two functions and just inline the UNALIGNED_LOAD64 call into
-// GetUint32AtOffset, but GCC (at least not as of 4.6) is seemingly not clever
-// enough to avoid loading the value multiple times then. For 64-bit, the load
-// is done when GetEightBytesAt() is called, whereas for 32-bit, the load is
-// done at GetUint32AtOffset() time.
-
-#ifdef ARCH_K8
-
-typedef uint64 EightBytesReference;
-
-static inline EightBytesReference GetEightBytesAt(const char* ptr) {
- return UNALIGNED_LOAD64(ptr);
-}
-
-static inline uint32 GetUint32AtOffset(uint64 v, int offset) {
- DCHECK_GE(offset, 0);
- DCHECK_LE(offset, 4);
- return v >> (LittleEndian::IsLittleEndian() ? 8 * offset : 32 - 8 * offset);
-}
-
-#else
-
-typedef const char* EightBytesReference;
-
-static inline EightBytesReference GetEightBytesAt(const char* ptr) {
- return ptr;
-}
-
-static inline uint32 GetUint32AtOffset(const char* v, int offset) {
- DCHECK_GE(offset, 0);
- DCHECK_LE(offset, 4);
- return UNALIGNED_LOAD32(v + offset);
-}
-
-#endif
-
-// Flat array compression that does not emit the "uncompressed length"
-// prefix. Compresses "input" string to the "*op" buffer.
-//
-// REQUIRES: "input" is at most "kBlockSize" bytes long.
-// REQUIRES: "op" points to an array of memory that is at least
-// "MaxCompressedLength(input.size())" in size.
-// REQUIRES: All elements in "table[0..table_size-1]" are initialized to zero.
-// REQUIRES: "table_size" is a power of two
-//
-// Returns an "end" pointer into "op" buffer.
-// "end - op" is the compressed size of "input".
-namespace internal {
-char* CompressFragment(const char* input,
- size_t input_size,
- char* op,
- uint16* table,
- const int table_size) {
- // "ip" is the input pointer, and "op" is the output pointer.
- const char* ip = input;
- CHECK_LE(input_size, kBlockSize);
- CHECK_EQ(table_size & (table_size - 1), 0) << ": table must be power of two";
- const int shift = 32 - Bits::Log2Floor(table_size);
- DCHECK_EQ(static_cast<int>(kuint32max >> shift), table_size - 1);
- const char* ip_end = input + input_size;
- const char* base_ip = ip;
- // Bytes in [next_emit, ip) will be emitted as literal bytes. Or
- // [next_emit, ip_end) after the main loop.
- const char* next_emit = ip;
-
- const size_t kInputMarginBytes = 15;
- if (PREDICT_TRUE(input_size >= kInputMarginBytes)) {
- const char* ip_limit = input + input_size - kInputMarginBytes;
-
- for (uint32 next_hash = Hash(++ip, shift); ; ) {
- DCHECK_LT(next_emit, ip);
- // The body of this loop calls EmitLiteral once and then EmitCopy one or
- // more times. (The exception is that when we're close to exhausting
- // the input we goto emit_remainder.)
- //
- // In the first iteration of this loop we're just starting, so
- // there's nothing to copy, so calling EmitLiteral once is
- // necessary. And we only start a new iteration when the
- // current iteration has determined that a call to EmitLiteral will
- // precede the next call to EmitCopy (if any).
- //
- // Step 1: Scan forward in the input looking for a 4-byte-long match.
- // If we get close to exhausting the input then goto emit_remainder.
- //
- // Heuristic match skipping: If 32 bytes are scanned with no matches
- // found, start looking only at every other byte. If 32 more bytes are
- // scanned, look at every third byte, etc.. When a match is found,
- // immediately go back to looking at every byte. This is a small loss
- // (~5% performance, ~0.1% density) for compressible data due to more
- // bookkeeping, but for non-compressible data (such as JPEG) it's a huge
- // win since the compressor quickly "realizes" the data is incompressible
- // and doesn't bother looking for matches everywhere.
- //
- // The "skip" variable keeps track of how many bytes there are since the
- // last match; dividing it by 32 (ie. right-shifting by five) gives the
- // number of bytes to move ahead for each iteration.
- uint32 skip = 32;
-
- const char* next_ip = ip;
- const char* candidate;
- do {
- ip = next_ip;
- uint32 hash = next_hash;
- DCHECK_EQ(hash, Hash(ip, shift));
- uint32 bytes_between_hash_lookups = skip++ >> 5;
- next_ip = ip + bytes_between_hash_lookups;
- if (PREDICT_FALSE(next_ip > ip_limit)) {
- goto emit_remainder;
- }
- next_hash = Hash(next_ip, shift);
- candidate = base_ip + table[hash];
- DCHECK_GE(candidate, base_ip);
- DCHECK_LT(candidate, ip);
-
- table[hash] = ip - base_ip;
- } while (PREDICT_TRUE(UNALIGNED_LOAD32(ip) !=
- UNALIGNED_LOAD32(candidate)));
-
- // Step 2: A 4-byte match has been found. We'll later see if more
- // than 4 bytes match. But, prior to the match, input
- // bytes [next_emit, ip) are unmatched. Emit them as "literal bytes."
- DCHECK_LE(next_emit + 16, ip_end);
- op = EmitLiteral(op, next_emit, ip - next_emit, true);
-
- // Step 3: Call EmitCopy, and then see if another EmitCopy could
- // be our next move. Repeat until we find no match for the
- // input immediately after what was consumed by the last EmitCopy call.
- //
- // If we exit this loop normally then we need to call EmitLiteral next,
- // though we don't yet know how big the literal will be. We handle that
- // by proceeding to the next iteration of the main loop. We also can exit
- // this loop via goto if we get close to exhausting the input.
- EightBytesReference input_bytes;
- uint32 candidate_bytes = 0;
-
- do {
- // We have a 4-byte match at ip, and no need to emit any
- // "literal bytes" prior to ip.
- const char* base = ip;
- int matched = 4 + FindMatchLength(candidate + 4, ip + 4, ip_end);
- ip += matched;
- size_t offset = base - candidate;
- DCHECK_EQ(0, memcmp(base, candidate, matched));
- op = EmitCopy(op, offset, matched);
- // We could immediately start working at ip now, but to improve
- // compression we first update table[Hash(ip - 1, ...)].
- const char* insert_tail = ip - 1;
- next_emit = ip;
- if (PREDICT_FALSE(ip >= ip_limit)) {
- goto emit_remainder;
- }
- input_bytes = GetEightBytesAt(insert_tail);
- uint32 prev_hash = HashBytes(GetUint32AtOffset(input_bytes, 0), shift);
- table[prev_hash] = ip - base_ip - 1;
- uint32 cur_hash = HashBytes(GetUint32AtOffset(input_bytes, 1), shift);
- candidate = base_ip + table[cur_hash];
- candidate_bytes = UNALIGNED_LOAD32(candidate);
- table[cur_hash] = ip - base_ip;
- } while (GetUint32AtOffset(input_bytes, 1) == candidate_bytes);
-
- next_hash = HashBytes(GetUint32AtOffset(input_bytes, 2), shift);
- ++ip;
- }
- }
-
- emit_remainder:
- // Emit the remaining bytes as a literal
- if (next_emit < ip_end) {
- op = EmitLiteral(op, next_emit, ip_end - next_emit, false);
- }
-
- return op;
-}
-} // end namespace internal
-
-// Signature of output types needed by decompression code.
-// The decompression code is templatized on a type that obeys this
-// signature so that we do not pay virtual function call overhead in
-// the middle of a tight decompression loop.
-//
-// class DecompressionWriter {
-// public:
-// // Called before decompression
-// void SetExpectedLength(size_t length);
-//
-// // Called after decompression
-// bool CheckLength() const;
-//
-// // Called repeatedly during decompression
-// bool Append(const char* ip, size_t length);
-// bool AppendFromSelf(uint32 offset, size_t length);
-//
-// // The difference between TryFastAppend and Append is that TryFastAppend
-// // is allowed to read up to <available> bytes from the input buffer,
-// // whereas Append is allowed to read <length>.
-// //
-// // Also, TryFastAppend is allowed to return false, declining the append,
-// // without it being a fatal error -- just "return false" would be
-// // a perfectly legal implementation of TryFastAppend. The intention
-// // is for TryFastAppend to allow a fast path in the common case of
-// // a small append.
-// //
-// // NOTE(user): TryFastAppend must always return decline (return false)
-// // if <length> is 61 or more, as in this case the literal length is not
-// // decoded fully. In practice, this should not be a big problem,
-// // as it is unlikely that one would implement a fast path accepting
-// // this much data.
-// bool TryFastAppend(const char* ip, size_t available, size_t length);
-// };
-
-// -----------------------------------------------------------------------
-// Lookup table for decompression code. Generated by ComputeTable() below.
-// -----------------------------------------------------------------------
-
-// Mapping from i in range [0,4] to a mask to extract the bottom 8*i bits
-static const uint32 wordmask[] = {
- 0u, 0xffu, 0xffffu, 0xffffffu, 0xffffffffu
-};
-
-// Data stored per entry in lookup table:
-// Range Bits-used Description
-// ------------------------------------
-// 1..64 0..7 Literal/copy length encoded in opcode byte
-// 0..7 8..10 Copy offset encoded in opcode byte / 256
-// 0..4 11..13 Extra bytes after opcode
-//
-// We use eight bits for the length even though 7 would have sufficed
-// because of efficiency reasons:
-// (1) Extracting a byte is faster than a bit-field
-// (2) It properly aligns copy offset so we do not need a <<8
-static const uint16 char_table[256] = {
- 0x0001, 0x0804, 0x1001, 0x2001, 0x0002, 0x0805, 0x1002, 0x2002,
- 0x0003, 0x0806, 0x1003, 0x2003, 0x0004, 0x0807, 0x1004, 0x2004,
- 0x0005, 0x0808, 0x1005, 0x2005, 0x0006, 0x0809, 0x1006, 0x2006,
- 0x0007, 0x080a, 0x1007, 0x2007, 0x0008, 0x080b, 0x1008, 0x2008,
- 0x0009, 0x0904, 0x1009, 0x2009, 0x000a, 0x0905, 0x100a, 0x200a,
- 0x000b, 0x0906, 0x100b, 0x200b, 0x000c, 0x0907, 0x100c, 0x200c,
- 0x000d, 0x0908, 0x100d, 0x200d, 0x000e, 0x0909, 0x100e, 0x200e,
- 0x000f, 0x090a, 0x100f, 0x200f, 0x0010, 0x090b, 0x1010, 0x2010,
- 0x0011, 0x0a04, 0x1011, 0x2011, 0x0012, 0x0a05, 0x1012, 0x2012,
- 0x0013, 0x0a06, 0x1013, 0x2013, 0x0014, 0x0a07, 0x1014, 0x2014,
- 0x0015, 0x0a08, 0x1015, 0x2015, 0x0016, 0x0a09, 0x1016, 0x2016,
- 0x0017, 0x0a0a, 0x1017, 0x2017, 0x0018, 0x0a0b, 0x1018, 0x2018,
- 0x0019, 0x0b04, 0x1019, 0x2019, 0x001a, 0x0b05, 0x101a, 0x201a,
- 0x001b, 0x0b06, 0x101b, 0x201b, 0x001c, 0x0b07, 0x101c, 0x201c,
- 0x001d, 0x0b08, 0x101d, 0x201d, 0x001e, 0x0b09, 0x101e, 0x201e,
- 0x001f, 0x0b0a, 0x101f, 0x201f, 0x0020, 0x0b0b, 0x1020, 0x2020,
- 0x0021, 0x0c04, 0x1021, 0x2021, 0x0022, 0x0c05, 0x1022, 0x2022,
- 0x0023, 0x0c06, 0x1023, 0x2023, 0x0024, 0x0c07, 0x1024, 0x2024,
- 0x0025, 0x0c08, 0x1025, 0x2025, 0x0026, 0x0c09, 0x1026, 0x2026,
- 0x0027, 0x0c0a, 0x1027, 0x2027, 0x0028, 0x0c0b, 0x1028, 0x2028,
- 0x0029, 0x0d04, 0x1029, 0x2029, 0x002a, 0x0d05, 0x102a, 0x202a,
- 0x002b, 0x0d06, 0x102b, 0x202b, 0x002c, 0x0d07, 0x102c, 0x202c,
- 0x002d, 0x0d08, 0x102d, 0x202d, 0x002e, 0x0d09, 0x102e, 0x202e,
- 0x002f, 0x0d0a, 0x102f, 0x202f, 0x0030, 0x0d0b, 0x1030, 0x2030,
- 0x0031, 0x0e04, 0x1031, 0x2031, 0x0032, 0x0e05, 0x1032, 0x2032,
- 0x0033, 0x0e06, 0x1033, 0x2033, 0x0034, 0x0e07, 0x1034, 0x2034,
- 0x0035, 0x0e08, 0x1035, 0x2035, 0x0036, 0x0e09, 0x1036, 0x2036,
- 0x0037, 0x0e0a, 0x1037, 0x2037, 0x0038, 0x0e0b, 0x1038, 0x2038,
- 0x0039, 0x0f04, 0x1039, 0x2039, 0x003a, 0x0f05, 0x103a, 0x203a,
- 0x003b, 0x0f06, 0x103b, 0x203b, 0x003c, 0x0f07, 0x103c, 0x203c,
- 0x0801, 0x0f08, 0x103d, 0x203d, 0x1001, 0x0f09, 0x103e, 0x203e,
- 0x1801, 0x0f0a, 0x103f, 0x203f, 0x2001, 0x0f0b, 0x1040, 0x2040
-};
-
-// In debug mode, allow optional computation of the table at startup.
-// Also, check that the decompression table is correct.
-#ifndef NDEBUG
-DEFINE_bool(snappy_dump_decompression_table, false,
- "If true, we print the decompression table at startup.");
-
-static uint16 MakeEntry(unsigned int extra,
- unsigned int len,
- unsigned int copy_offset) {
- // Check that all of the fields fit within the allocated space
- DCHECK_EQ(extra, extra & 0x7); // At most 3 bits
- DCHECK_EQ(copy_offset, copy_offset & 0x7); // At most 3 bits
- DCHECK_EQ(len, len & 0x7f); // At most 7 bits
- return len | (copy_offset << 8) | (extra << 11);
-}
-
-static void ComputeTable() {
- uint16 dst[256];
-
- // Place invalid entries in all places to detect missing initialization
- int assigned = 0;
- for (int i = 0; i < 256; i++) {
- dst[i] = 0xffff;
- }
-
- // Small LITERAL entries. We store (len-1) in the top 6 bits.
- for (unsigned int len = 1; len <= 60; len++) {
- dst[LITERAL | ((len-1) << 2)] = MakeEntry(0, len, 0);
- assigned++;
- }
-
- // Large LITERAL entries. We use 60..63 in the high 6 bits to
- // encode the number of bytes of length info that follow the opcode.
- for (unsigned int extra_bytes = 1; extra_bytes <= 4; extra_bytes++) {
- // We set the length field in the lookup table to 1 because extra
- // bytes encode len-1.
- dst[LITERAL | ((extra_bytes+59) << 2)] = MakeEntry(extra_bytes, 1, 0);
- assigned++;
- }
-
- // COPY_1_BYTE_OFFSET.
- //
- // The tag byte in the compressed data stores len-4 in 3 bits, and
- // offset/256 in 5 bits. offset%256 is stored in the next byte.
- //
- // This format is used for length in range [4..11] and offset in
- // range [0..2047]
- for (unsigned int len = 4; len < 12; len++) {
- for (unsigned int offset = 0; offset < 2048; offset += 256) {
- dst[COPY_1_BYTE_OFFSET | ((len-4)<<2) | ((offset>>8)<<5)] =
- MakeEntry(1, len, offset>>8);
- assigned++;
- }
- }
-
- // COPY_2_BYTE_OFFSET.
- // Tag contains len-1 in top 6 bits, and offset in next two bytes.
- for (unsigned int len = 1; len <= 64; len++) {
- dst[COPY_2_BYTE_OFFSET | ((len-1)<<2)] = MakeEntry(2, len, 0);
- assigned++;
- }
-
- // COPY_4_BYTE_OFFSET.
- // Tag contents len-1 in top 6 bits, and offset in next four bytes.
- for (unsigned int len = 1; len <= 64; len++) {
- dst[COPY_4_BYTE_OFFSET | ((len-1)<<2)] = MakeEntry(4, len, 0);
- assigned++;
- }
-
- // Check that each entry was initialized exactly once.
- CHECK_EQ(assigned, 256);
- for (int i = 0; i < 256; i++) {
- CHECK_NE(dst[i], 0xffff);
- }
-
- if (FLAGS_snappy_dump_decompression_table) {
- printf("static const uint16 char_table[256] = {\n ");
- for (int i = 0; i < 256; i++) {
- printf("0x%04x%s",
- dst[i],
- ((i == 255) ? "\n" : (((i%8) == 7) ? ",\n " : ", ")));
- }
- printf("};\n");
- }
-
- // Check that computed table matched recorded table
- for (int i = 0; i < 256; i++) {
- CHECK_EQ(dst[i], char_table[i]);
- }
-}
-#endif /* !NDEBUG */
-
-// Helper class for decompression
-class SnappyDecompressor {
- private:
- Source* reader_; // Underlying source of bytes to decompress
- const char* ip_; // Points to next buffered byte
- const char* ip_limit_; // Points just past buffered bytes
- uint32 peeked_; // Bytes peeked from reader (need to skip)
- bool eof_; // Hit end of input without an error?
- char scratch_[5]; // Temporary buffer for PeekFast() boundaries
-
- // Ensure that all of the tag metadata for the next tag is available
- // in [ip_..ip_limit_-1]. Also ensures that [ip,ip+4] is readable even
- // if (ip_limit_ - ip_ < 5).
- //
- // Returns true on success, false on error or end of input.
- bool RefillTag();
-
- public:
- explicit SnappyDecompressor(Source* reader)
- : reader_(reader),
- ip_(NULL),
- ip_limit_(NULL),
- peeked_(0),
- eof_(false) {
- }
-
- ~SnappyDecompressor() {
- // Advance past any bytes we peeked at from the reader
- reader_->Skip(peeked_);
- }
-
- // Returns true iff we have hit the end of the input without an error.
- bool eof() const {
- return eof_;
- }
-
- // Read the uncompressed length stored at the start of the compressed data.
- // On succcess, stores the length in *result and returns true.
- // On failure, returns false.
- bool ReadUncompressedLength(uint32* result) {
- DCHECK(ip_ == NULL); // Must not have read anything yet
- // Length is encoded in 1..5 bytes
- *result = 0;
- uint32 shift = 0;
- while (true) {
- if (shift >= 32) return false;
- size_t n;
- const char* ip = reader_->Peek(&n);
- if (n == 0) return false;
- const unsigned char c = *(reinterpret_cast<const unsigned char*>(ip));
- reader_->Skip(1);
- *result |= static_cast<uint32>(c & 0x7f) << shift;
- if (c < 128) {
- break;
- }
- shift += 7;
- }
- return true;
- }
-
- // Process the next item found in the input.
- // Returns true if successful, false on error or end of input.
- template <class Writer>
- void DecompressAllTags(Writer* writer) {
- const char* ip = ip_;
-
- // We could have put this refill fragment only at the beginning of the loop.
- // However, duplicating it at the end of each branch gives the compiler more
- // scope to optimize the <ip_limit_ - ip> expression based on the local
- // context, which overall increases speed.
- #define MAYBE_REFILL() \
- if (ip_limit_ - ip < 5) { \
- ip_ = ip; \
- if (!RefillTag()) return; \
- ip = ip_; \
- }
-
- MAYBE_REFILL();
- for ( ;; ) {
- const unsigned char c = *(reinterpret_cast<const unsigned char*>(ip++));
-
- if ((c & 0x3) == LITERAL) {
- size_t literal_length = (c >> 2) + 1u;
- if (writer->TryFastAppend(ip, ip_limit_ - ip, literal_length)) {
- DCHECK_LT(literal_length, 61);
- ip += literal_length;
- MAYBE_REFILL();
- continue;
- }
- if (PREDICT_FALSE(literal_length >= 61)) {
- // Long literal.
- const size_t literal_length_length = literal_length - 60;
- literal_length =
- (LittleEndian::Load32(ip) & wordmask[literal_length_length]) + 1;
- ip += literal_length_length;
- }
-
- size_t avail = ip_limit_ - ip;
- while (avail < literal_length) {
- if (!writer->Append(ip, avail)) return;
- literal_length -= avail;
- reader_->Skip(peeked_);
- size_t n;
- ip = reader_->Peek(&n);
- avail = n;
- peeked_ = avail;
- if (avail == 0) return; // Premature end of input
- ip_limit_ = ip + avail;
- }
- if (!writer->Append(ip, literal_length)) {
- return;
- }
- ip += literal_length;
- MAYBE_REFILL();
- } else {
- const uint32 entry = char_table[c];
- const uint32 trailer = LittleEndian::Load32(ip) & wordmask[entry >> 11];
- const uint32 length = entry & 0xff;
- ip += entry >> 11;
-
- // copy_offset/256 is encoded in bits 8..10. By just fetching
- // those bits, we get copy_offset (since the bit-field starts at
- // bit 8).
- const uint32 copy_offset = entry & 0x700;
- if (!writer->AppendFromSelf(copy_offset + trailer, length)) {
- return;
- }
- MAYBE_REFILL();
- }
- }
-
-#undef MAYBE_REFILL
- }
-};
-
-bool SnappyDecompressor::RefillTag() {
- const char* ip = ip_;
- if (ip == ip_limit_) {
- // Fetch a new fragment from the reader
- reader_->Skip(peeked_); // All peeked bytes are used up
- size_t n;
- ip = reader_->Peek(&n);
- peeked_ = n;
- if (n == 0) {
- eof_ = true;
- return false;
- }
- ip_limit_ = ip + n;
- }
-
- // Read the tag character
- DCHECK_LT(ip, ip_limit_);
- const unsigned char c = *(reinterpret_cast<const unsigned char*>(ip));
- const uint32 entry = char_table[c];
- const uint32 needed = (entry >> 11) + 1; // +1 byte for 'c'
- DCHECK_LE(needed, sizeof(scratch_));
-
- // Read more bytes from reader if needed
- uint32 nbuf = ip_limit_ - ip;
- if (nbuf < needed) {
- // Stitch together bytes from ip and reader to form the word
- // contents. We store the needed bytes in "scratch_". They
- // will be consumed immediately by the caller since we do not
- // read more than we need.
- memmove(scratch_, ip, nbuf);
- reader_->Skip(peeked_); // All peeked bytes are used up
- peeked_ = 0;
- while (nbuf < needed) {
- size_t length;
- const char* src = reader_->Peek(&length);
- if (length == 0) return false;
- uint32 to_add = min<uint32>(needed - nbuf, length);
- memcpy(scratch_ + nbuf, src, to_add);
- nbuf += to_add;
- reader_->Skip(to_add);
- }
- DCHECK_EQ(nbuf, needed);
- ip_ = scratch_;
- ip_limit_ = scratch_ + needed;
- } else if (nbuf < 5) {
- // Have enough bytes, but move into scratch_ so that we do not
- // read past end of input
- memmove(scratch_, ip, nbuf);
- reader_->Skip(peeked_); // All peeked bytes are used up
- peeked_ = 0;
- ip_ = scratch_;
- ip_limit_ = scratch_ + nbuf;
- } else {
- // Pass pointer to buffer returned by reader_.
- ip_ = ip;
- }
- return true;
-}
-
-template <typename Writer>
-static bool InternalUncompress(Source* r,
- Writer* writer,
- uint32 max_len) {
- // Read the uncompressed length from the front of the compressed input
- SnappyDecompressor decompressor(r);
- uint32 uncompressed_len = 0;
- if (!decompressor.ReadUncompressedLength(&uncompressed_len)) return false;
- return InternalUncompressAllTags(
- &decompressor, writer, uncompressed_len, max_len);
-}
-
-template <typename Writer>
-static bool InternalUncompressAllTags(SnappyDecompressor* decompressor,
- Writer* writer,
- uint32 uncompressed_len,
- uint32 max_len) {
- // Protect against possible DoS attack
- if (static_cast<uint64>(uncompressed_len) > max_len) {
- return false;
- }
-
- writer->SetExpectedLength(uncompressed_len);
-
- // Process the entire input
- decompressor->DecompressAllTags(writer);
- return (decompressor->eof() && writer->CheckLength());
-}
-
-bool GetUncompressedLength(Source* source, uint32* result) {
- SnappyDecompressor decompressor(source);
- return decompressor.ReadUncompressedLength(result);
-}
-
-size_t Compress(Source* reader, Sink* writer) {
- size_t written = 0;
- size_t N = reader->Available();
- char ulength[Varint::kMax32];
- char* p = Varint::Encode32(ulength, N);
- writer->Append(ulength, p-ulength);
- written += (p - ulength);
-
- internal::WorkingMemory wmem;
- char* scratch = NULL;
- char* scratch_output = NULL;
-
- while (N > 0) {
- // Get next block to compress (without copying if possible)
- size_t fragment_size;
- const char* fragment = reader->Peek(&fragment_size);
- DCHECK_NE(fragment_size, 0) << ": premature end of input";
- const size_t num_to_read = min(N, kBlockSize);
- size_t bytes_read = fragment_size;
-
- size_t pending_advance = 0;
- if (bytes_read >= num_to_read) {
- // Buffer returned by reader is large enough
- pending_advance = num_to_read;
- fragment_size = num_to_read;
- } else {
- // Read into scratch buffer
- if (scratch == NULL) {
- // If this is the last iteration, we want to allocate N bytes
- // of space, otherwise the max possible kBlockSize space.
- // num_to_read contains exactly the correct value
- scratch = new char[num_to_read];
- }
- memcpy(scratch, fragment, bytes_read);
- reader->Skip(bytes_read);
-
- while (bytes_read < num_to_read) {
- fragment = reader->Peek(&fragment_size);
- size_t n = min<size_t>(fragment_size, num_to_read - bytes_read);
- memcpy(scratch + bytes_read, fragment, n);
- bytes_read += n;
- reader->Skip(n);
- }
- DCHECK_EQ(bytes_read, num_to_read);
- fragment = scratch;
- fragment_size = num_to_read;
- }
- DCHECK_EQ(fragment_size, num_to_read);
-
- // Get encoding table for compression
- int table_size;
- uint16* table = wmem.GetHashTable(num_to_read, &table_size);
-
- // Compress input_fragment and append to dest
- const int max_output = MaxCompressedLength(num_to_read);
-
- // Need a scratch buffer for the output, in case the byte sink doesn't
- // have room for us directly.
- if (scratch_output == NULL) {
- scratch_output = new char[max_output];
- } else {
- // Since we encode kBlockSize regions followed by a region
- // which is <= kBlockSize in length, a previously allocated
- // scratch_output[] region is big enough for this iteration.
- }
- char* dest = writer->GetAppendBuffer(max_output, scratch_output);
- char* end = internal::CompressFragment(fragment, fragment_size,
- dest, table, table_size);
- writer->Append(dest, end - dest);
- written += (end - dest);
-
- N -= num_to_read;
- reader->Skip(pending_advance);
- }
-
- delete[] scratch;
- delete[] scratch_output;
-
- return written;
-}
-
-// -----------------------------------------------------------------------
-// Flat array interfaces
-// -----------------------------------------------------------------------
-
-// A type that writes to a flat array.
-// Note that this is not a "ByteSink", but a type that matches the
-// Writer template argument to SnappyDecompressor::DecompressAllTags().
-class SnappyArrayWriter {
- private:
- char* base_;
- char* op_;
- char* op_limit_;
-
- public:
- inline explicit SnappyArrayWriter(char* dst)
- : base_(dst),
- op_(dst) {
- }
-
- inline void SetExpectedLength(size_t len) {
- op_limit_ = op_ + len;
- }
-
- inline bool CheckLength() const {
- return op_ == op_limit_;
- }
-
- inline bool Append(const char* ip, size_t len) {
- char* op = op_;
- const size_t space_left = op_limit_ - op;
- if (space_left < len) {
- return false;
- }
- memcpy(op, ip, len);
- op_ = op + len;
- return true;
- }
-
- inline bool TryFastAppend(const char* ip, size_t available, size_t len) {
- char* op = op_;
- const size_t space_left = op_limit_ - op;
- if (len <= 16 && available >= 16 && space_left >= 16) {
- // Fast path, used for the majority (about 95%) of invocations.
- UnalignedCopy64(ip, op);
- UnalignedCopy64(ip + 8, op + 8);
- op_ = op + len;
- return true;
- } else {
- return false;
- }
- }
-
- inline bool AppendFromSelf(size_t offset, size_t len) {
- char* op = op_;
- const size_t space_left = op_limit_ - op;
-
- if (op - base_ <= offset - 1u) { // -1u catches offset==0
- return false;
- }
- if (len <= 16 && offset >= 8 && space_left >= 16) {
- // Fast path, used for the majority (70-80%) of dynamic invocations.
- UnalignedCopy64(op - offset, op);
- UnalignedCopy64(op - offset + 8, op + 8);
- } else {
- if (space_left >= len + kMaxIncrementCopyOverflow) {
- IncrementalCopyFastPath(op - offset, op, len);
- } else {
- if (space_left < len) {
- return false;
- }
- IncrementalCopy(op - offset, op, len);
- }
- }
-
- op_ = op + len;
- return true;
- }
-};
-
-bool RawUncompress(const char* compressed, size_t n, char* uncompressed) {
- ByteArraySource reader(compressed, n);
- return RawUncompress(&reader, uncompressed);
-}
-
-bool RawUncompress(Source* compressed, char* uncompressed) {
- SnappyArrayWriter output(uncompressed);
- return InternalUncompress(compressed, &output, kuint32max);
-}
-
-bool Uncompress(const char* compressed, size_t n, string* uncompressed) {
- size_t ulength;
- if (!GetUncompressedLength(compressed, n, &ulength)) {
- return false;
- }
- // Protect against possible DoS attack
- if ((static_cast<uint64>(ulength) + uncompressed->size()) >
- uncompressed->max_size()) {
- return false;
- }
- STLStringResizeUninitialized(uncompressed, ulength);
- return RawUncompress(compressed, n, string_as_array(uncompressed));
-}
-
-
-// A Writer that drops everything on the floor and just does validation
-class SnappyDecompressionValidator {
- private:
- size_t expected_;
- size_t produced_;
-
- public:
- inline SnappyDecompressionValidator() : produced_(0) { }
- inline void SetExpectedLength(size_t len) {
- expected_ = len;
- }
- inline bool CheckLength() const {
- return expected_ == produced_;
- }
- inline bool Append(const char* ip, size_t len) {
- produced_ += len;
- return produced_ <= expected_;
- }
- inline bool TryFastAppend(const char* ip, size_t available, size_t length) {
- return false;
- }
- inline bool AppendFromSelf(size_t offset, size_t len) {
- if (produced_ <= offset - 1u) return false; // -1u catches offset==0
- produced_ += len;
- return produced_ <= expected_;
- }
-};
-
-bool IsValidCompressedBuffer(const char* compressed, size_t n) {
- ByteArraySource reader(compressed, n);
- SnappyDecompressionValidator writer;
- return InternalUncompress(&reader, &writer, kuint32max);
-}
-
-void RawCompress(const char* input,
- size_t input_length,
- char* compressed,
- size_t* compressed_length) {
- ByteArraySource reader(input, input_length);
- UncheckedByteArraySink writer(compressed);
- Compress(&reader, &writer);
-
- // Compute how many bytes were added
- *compressed_length = (writer.CurrentDestination() - compressed);
-}
-
-size_t Compress(const char* input, size_t input_length, string* compressed) {
- // Pre-grow the buffer to the max length of the compressed output
- compressed->resize(MaxCompressedLength(input_length));
-
- size_t compressed_length;
- RawCompress(input, input_length, string_as_array(compressed),
- &compressed_length);
- compressed->resize(compressed_length);
- return compressed_length;
-}
-
-
-} // end namespace snappy
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright 2005 and onwards Google Inc.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// A light-weight compression algorithm. It is designed for speed of
-// compression and decompression, rather than for the utmost in space
-// savings.
-//
-// For getting better compression ratios when you are compressing data
-// with long repeated sequences or compressing data that is similar to
-// other data, while still compressing fast, you might look at first
-// using BMDiff and then compressing the output of BMDiff with
-// Snappy.
-
-#ifndef UTIL_SNAPPY_SNAPPY_H__
-#define UTIL_SNAPPY_SNAPPY_H__
-
-#include <stddef.h>
-#include <string>
-
-#include "snappy-stubs-public.h"
-
-namespace snappy {
- class Source;
- class Sink;
-
- // ------------------------------------------------------------------------
- // Generic compression/decompression routines.
- // ------------------------------------------------------------------------
-
- // Compress the bytes read from "*source" and append to "*sink". Return the
- // number of bytes written.
- size_t Compress(Source* source, Sink* sink);
-
- bool GetUncompressedLength(Source* source, uint32* result);
-
- // ------------------------------------------------------------------------
- // Higher-level string based routines (should be sufficient for most users)
- // ------------------------------------------------------------------------
-
- // Sets "*output" to the compressed version of "input[0,input_length-1]".
- // Original contents of *output are lost.
- //
- // REQUIRES: "input[]" is not an alias of "*output".
- size_t Compress(const char* input, size_t input_length, string* output);
-
- // Decompresses "compressed[0,compressed_length-1]" to "*uncompressed".
- // Original contents of "*uncompressed" are lost.
- //
- // REQUIRES: "compressed[]" is not an alias of "*uncompressed".
- //
- // returns false if the message is corrupted and could not be decompressed
- bool Uncompress(const char* compressed, size_t compressed_length,
- string* uncompressed);
-
-
- // ------------------------------------------------------------------------
- // Lower-level character array based routines. May be useful for
- // efficiency reasons in certain circumstances.
- // ------------------------------------------------------------------------
-
- // REQUIRES: "compressed" must point to an area of memory that is at
- // least "MaxCompressedLength(input_length)" bytes in length.
- //
- // Takes the data stored in "input[0..input_length]" and stores
- // it in the array pointed to by "compressed".
- //
- // "*compressed_length" is set to the length of the compressed output.
- //
- // Example:
- // char* output = new char[snappy::MaxCompressedLength(input_length)];
- // size_t output_length;
- // RawCompress(input, input_length, output, &output_length);
- // ... Process(output, output_length) ...
- // delete [] output;
- void RawCompress(const char* input,
- size_t input_length,
- char* compressed,
- size_t* compressed_length);
-
- // Given data in "compressed[0..compressed_length-1]" generated by
- // calling the Snappy::Compress routine, this routine
- // stores the uncompressed data to
- // uncompressed[0..GetUncompressedLength(compressed)-1]
- // returns false if the message is corrupted and could not be decrypted
- bool RawUncompress(const char* compressed, size_t compressed_length,
- char* uncompressed);
-
- // Given data from the byte source 'compressed' generated by calling
- // the Snappy::Compress routine, this routine stores the uncompressed
- // data to
- // uncompressed[0..GetUncompressedLength(compressed,compressed_length)-1]
- // returns false if the message is corrupted and could not be decrypted
- bool RawUncompress(Source* compressed, char* uncompressed);
-
- // Returns the maximal size of the compressed representation of
- // input data that is "source_bytes" bytes in length;
- size_t MaxCompressedLength(size_t source_bytes);
-
- // REQUIRES: "compressed[]" was produced by RawCompress() or Compress()
- // Returns true and stores the length of the uncompressed data in
- // *result normally. Returns false on parsing error.
- // This operation takes O(1) time.
- bool GetUncompressedLength(const char* compressed, size_t compressed_length,
- size_t* result);
-
- // Returns true iff the contents of "compressed[]" can be uncompressed
- // successfully. Does not return the uncompressed data. Takes
- // time proportional to compressed_length, but is usually at least
- // a factor of four faster than actual decompression.
- bool IsValidCompressedBuffer(const char* compressed,
- size_t compressed_length);
-
- // *** DO NOT CHANGE THE VALUE OF kBlockSize ***
- //
- // New Compression code chops up the input into blocks of at most
- // the following size. This ensures that back-references in the
- // output never cross kBlockSize block boundaries. This can be
- // helpful in implementing blocked decompression. However the
- // decompression code should not rely on this guarantee since older
- // compression code may not obey it.
- static const int kBlockLog = 15;
- static const size_t kBlockSize = 1 << kBlockLog;
-
- static const int kMaxHashTableBits = 14;
- static const size_t kMaxHashTableSize = 1 << kMaxHashTableBits;
-
-} // end namespace snappy
-
-
-#endif // UTIL_SNAPPY_SNAPPY_H__
+++ /dev/null
-# snappy.lo - a libtool object file
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object='.libs/snappy.o'
-
-# Name of the non-PIC object
-non_pic_object='snappy.o'
-
+++ /dev/null
-#! /bin/sh
-
-# snappy_unittest - temporary wrapper script for .libs/snappy_unittest
-# Generated by ltmain.sh (GNU libtool) 2.2.6b Debian-2.2.6b-2ubuntu1
-#
-# The snappy_unittest program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed='/bin/sed -e 1s/^X//'
-sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command="(cd /home/dhruba/local/leveldb.releases/snappy/snappy-1.0.5; { test -z \"\${LIBRARY_PATH+set}\" || unset LIBRARY_PATH || { LIBRARY_PATH=; export LIBRARY_PATH; }; }; { test -z \"\${COMPILER_PATH+set}\" || unset COMPILER_PATH || { COMPILER_PATH=; export COMPILER_PATH; }; }; { test -z \"\${GCC_EXEC_PREFIX+set}\" || unset GCC_EXEC_PREFIX || { GCC_EXEC_PREFIX=; export GCC_EXEC_PREFIX; }; }; { test -z \"\${LD_RUN_PATH+set}\" || unset LD_RUN_PATH || { LD_RUN_PATH=; export LD_RUN_PATH; }; }; LD_LIBRARY_PATH=./snappy/libs; export LD_LIBRARY_PATH; PATH=\"/usr/local/jdk-6u7-32//bin:/home/dhruba/maven/bin:/home/dhruba/bin/:/home/dhruba/external/apache-ant-1.8.1/bin/:/usr/local/java/bin/:~/pl/bin:~/maven/bin:/home/dhruba/apache-ant-1.7.0/bin:/usr/kerberos/bin:/opt/local/bin:/usr/local/bin:/bin:/usr/bin:/usr/facebook/scripts:/home/engshare/devtools/facebook/bin:/home/engshare/svnroot/tfb/trunk/www/scripts/bin:/home/engshare/admin/scripts/git:/home/engshare/admin/scripts:/home/dhruba/www/scripts/bin:/home/dhruba/bin\"; export PATH; /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/centos5.2-native/gcc/gcc-4.6.2-glibc-2.13/bin/g++ -O2 -DNDEBUG -o \$progdir/\$file snappy_unittest-snappy_unittest.o snappy_unittest-snappy-test.o ./.libs/libsnappy.so -lz /mnt/gvfs/third-party/d28c90311ca14f9f0b2bb720f4e34b285513d4f4/gcc-4.6.2-glibc-2.13/jemalloc/jemalloc-2.2.4/96de4f9/lib/libjemalloc_pic.a -Wl,-rpath -Wl,/home/dhruba/local/leveldb.releases/snappy/snappy-1.0.5/.libs)"
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
- # install mode needs the following variables:
- generated_by_libtool_version='2.2.6b'
- notinst_deplibs=' libsnappy.la'
-else
- # When we are sourced in execute mode, $file and $ECHO are already set.
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- ECHO="echo"
- file="$0"
- # Make sure echo works.
- if test "X$1" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
- elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t'; then
- # Yippee, $ECHO works!
- :
- else
- # Restart under the correct shell, and then maybe $ECHO will work.
- exec /bin/sh "$0" --no-reexec ${1+"$@"}
- fi
- fi
-
- # Find the directory that this script lives in.
- thisdir=`$ECHO "X$file" | $Xsed -e 's%/[^/]*$%%'`
- test "x$thisdir" = "x$file" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
- while test -n "$file"; do
- destdir=`$ECHO "X$file" | $Xsed -e 's%/[^/]*$%%'`
-
- # If there was a directory component, then change thisdir.
- if test "x$destdir" != "x$file"; then
- case "$destdir" in
- [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
- *) thisdir="$thisdir/$destdir" ;;
- esac
- fi
-
- file=`$ECHO "X$file" | $Xsed -e 's%^.*/%%'`
- file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
- done
-
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
- if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
- # special case for '.'
- if test "$thisdir" = "."; then
- thisdir=`pwd`
- fi
- # remove .libs from thisdir
- case "$thisdir" in
- *[\\/].libs ) thisdir=`$ECHO "X$thisdir" | $Xsed -e 's%[\\/][^\\/]*$%%'` ;;
- .libs ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=`cd "$thisdir" && pwd`
- test -n "$absdir" && thisdir="$absdir"
-
- program=lt-'snappy_unittest'
- progdir="$thisdir/.libs"
-
- if test ! -f "$progdir/$program" ||
- { file=`ls -1dt "$progdir/$program" "$progdir/../$program" 2>/dev/null | /bin/sed 1q`; \
- test "X$file" != "X$progdir/$program"; }; then
-
- file="$$-$program"
-
- if test ! -d "$progdir"; then
- mkdir "$progdir"
- else
- rm -f "$progdir/$file"
- fi
-
- # relink executable if necessary
- if test -n "$relink_command"; then
- if relink_command_output=`eval $relink_command 2>&1`; then :
- else
- echo "$relink_command_output" >&2
- rm -f "$progdir/$file"
- exit 1
- fi
- fi
-
- mv -f "$progdir/$file" "$progdir/$program" 2>/dev/null ||
- { rm -f "$progdir/$program";
- mv -f "$progdir/$file" "$progdir/$program"; }
- rm -f "$progdir/$file"
- fi
-
- if test -f "$progdir/$program"; then
- if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
- # Run the actual program with our arguments.
-
- exec "$progdir/$program" ${1+"$@"}
-
- $ECHO "$0: cannot exec $program $*" 1>&2
- exit 1
- fi
- else
- # The program doesn't exist.
- $ECHO "$0: error: \`$progdir/$program' does not exist" 1>&2
- $ECHO "This script is just a wrapper for $program." 1>&2
- echo "See the libtool documentation for more information." 1>&2
- exit 1
- fi
-fi
+++ /dev/null
-// Copyright 2005 and onwards Google Inc.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include <math.h>
-#include <stdlib.h>
-
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-#include "snappy.h"
-#include "snappy-internal.h"
-#include "snappy-test.h"
-#include "snappy-sinksource.h"
-
-DEFINE_int32(start_len, -1,
- "Starting prefix size for testing (-1: just full file contents)");
-DEFINE_int32(end_len, -1,
- "Starting prefix size for testing (-1: just full file contents)");
-DEFINE_int32(bytes, 10485760,
- "How many bytes to compress/uncompress per file for timing");
-
-DEFINE_bool(zlib, false,
- "Run zlib compression (http://www.zlib.net)");
-DEFINE_bool(lzo, false,
- "Run LZO compression (http://www.oberhumer.com/opensource/lzo/)");
-DEFINE_bool(quicklz, false,
- "Run quickLZ compression (http://www.quicklz.com/)");
-DEFINE_bool(liblzf, false,
- "Run libLZF compression "
- "(http://www.goof.com/pcg/marc/liblzf.html)");
-DEFINE_bool(fastlz, false,
- "Run FastLZ compression (http://www.fastlz.org/");
-DEFINE_bool(snappy, true, "Run snappy compression");
-
-
-DEFINE_bool(write_compressed, false,
- "Write compressed versions of each file to <file>.comp");
-DEFINE_bool(write_uncompressed, false,
- "Write uncompressed versions of each file to <file>.uncomp");
-
-namespace snappy {
-
-
-#ifdef HAVE_FUNC_MMAP
-
-// To test against code that reads beyond its input, this class copies a
-// string to a newly allocated group of pages, the last of which
-// is made unreadable via mprotect. Note that we need to allocate the
-// memory with mmap(), as POSIX allows mprotect() only on memory allocated
-// with mmap(), and some malloc/posix_memalign implementations expect to
-// be able to read previously allocated memory while doing heap allocations.
-class DataEndingAtUnreadablePage {
- public:
- explicit DataEndingAtUnreadablePage(const string& s) {
- const size_t page_size = getpagesize();
- const size_t size = s.size();
- // Round up space for string to a multiple of page_size.
- size_t space_for_string = (size + page_size - 1) & ~(page_size - 1);
- alloc_size_ = space_for_string + page_size;
- mem_ = mmap(NULL, alloc_size_,
- PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
- CHECK_NE(MAP_FAILED, mem_);
- protected_page_ = reinterpret_cast<char*>(mem_) + space_for_string;
- char* dst = protected_page_ - size;
- memcpy(dst, s.data(), size);
- data_ = dst;
- size_ = size;
- // Make guard page unreadable.
- CHECK_EQ(0, mprotect(protected_page_, page_size, PROT_NONE));
- }
-
- ~DataEndingAtUnreadablePage() {
- // Undo the mprotect.
- CHECK_EQ(0, mprotect(protected_page_, getpagesize(), PROT_READ|PROT_WRITE));
- CHECK_EQ(0, munmap(mem_, alloc_size_));
- }
-
- const char* data() const { return data_; }
- size_t size() const { return size_; }
-
- private:
- size_t alloc_size_;
- void* mem_;
- char* protected_page_;
- const char* data_;
- size_t size_;
-};
-
-#else // HAVE_FUNC_MMAP
-
-// Fallback for systems without mmap.
-typedef string DataEndingAtUnreadablePage;
-
-#endif
-
-enum CompressorType {
- ZLIB, LZO, LIBLZF, QUICKLZ, FASTLZ, SNAPPY
-};
-
-const char* names[] = {
- "ZLIB", "LZO", "LIBLZF", "QUICKLZ", "FASTLZ", "SNAPPY"
-};
-
-static size_t MinimumRequiredOutputSpace(size_t input_size,
- CompressorType comp) {
- switch (comp) {
-#ifdef ZLIB_VERSION
- case ZLIB:
- return ZLib::MinCompressbufSize(input_size);
-#endif // ZLIB_VERSION
-
-#ifdef LZO_VERSION
- case LZO:
- return input_size + input_size/64 + 16 + 3;
-#endif // LZO_VERSION
-
-#ifdef LZF_VERSION
- case LIBLZF:
- return input_size;
-#endif // LZF_VERSION
-
-#ifdef QLZ_VERSION_MAJOR
- case QUICKLZ:
- return input_size + 36000; // 36000 is used for scratch.
-#endif // QLZ_VERSION_MAJOR
-
-#ifdef FASTLZ_VERSION
- case FASTLZ:
- return max(static_cast<int>(ceil(input_size * 1.05)), 66);
-#endif // FASTLZ_VERSION
-
- case SNAPPY:
- return snappy::MaxCompressedLength(input_size);
-
- default:
- LOG(FATAL) << "Unknown compression type number " << comp;
- }
-}
-
-// Returns true if we successfully compressed, false otherwise.
-//
-// If compressed_is_preallocated is set, do not resize the compressed buffer.
-// This is typically what you want for a benchmark, in order to not spend
-// time in the memory allocator. If you do set this flag, however,
-// "compressed" must be preinitialized to at least MinCompressbufSize(comp)
-// number of bytes, and may contain junk bytes at the end after return.
-static bool Compress(const char* input, size_t input_size, CompressorType comp,
- string* compressed, bool compressed_is_preallocated) {
- if (!compressed_is_preallocated) {
- compressed->resize(MinimumRequiredOutputSpace(input_size, comp));
- }
-
- switch (comp) {
-#ifdef ZLIB_VERSION
- case ZLIB: {
- ZLib zlib;
- uLongf destlen = compressed->size();
- int ret = zlib.Compress(
- reinterpret_cast<Bytef*>(string_as_array(compressed)),
- &destlen,
- reinterpret_cast<const Bytef*>(input),
- input_size);
- CHECK_EQ(Z_OK, ret);
- if (!compressed_is_preallocated) {
- compressed->resize(destlen);
- }
- return true;
- }
-#endif // ZLIB_VERSION
-
-#ifdef LZO_VERSION
- case LZO: {
- unsigned char* mem = new unsigned char[LZO1X_1_15_MEM_COMPRESS];
- lzo_uint destlen;
- int ret = lzo1x_1_15_compress(
- reinterpret_cast<const uint8*>(input),
- input_size,
- reinterpret_cast<uint8*>(string_as_array(compressed)),
- &destlen,
- mem);
- CHECK_EQ(LZO_E_OK, ret);
- delete[] mem;
- if (!compressed_is_preallocated) {
- compressed->resize(destlen);
- }
- break;
- }
-#endif // LZO_VERSION
-
-#ifdef LZF_VERSION
- case LIBLZF: {
- int destlen = lzf_compress(input,
- input_size,
- string_as_array(compressed),
- input_size);
- if (destlen == 0) {
- // lzf *can* cause lots of blowup when compressing, so they
- // recommend to limit outsize to insize, and just not compress
- // if it's bigger. Ideally, we'd just swap input and output.
- compressed->assign(input, input_size);
- destlen = input_size;
- }
- if (!compressed_is_preallocated) {
- compressed->resize(destlen);
- }
- break;
- }
-#endif // LZF_VERSION
-
-#ifdef QLZ_VERSION_MAJOR
- case QUICKLZ: {
- qlz_state_compress *state_compress = new qlz_state_compress;
- int destlen = qlz_compress(input,
- string_as_array(compressed),
- input_size,
- state_compress);
- delete state_compress;
- CHECK_NE(0, destlen);
- if (!compressed_is_preallocated) {
- compressed->resize(destlen);
- }
- break;
- }
-#endif // QLZ_VERSION_MAJOR
-
-#ifdef FASTLZ_VERSION
- case FASTLZ: {
- // Use level 1 compression since we mostly care about speed.
- int destlen = fastlz_compress_level(
- 1,
- input,
- input_size,
- string_as_array(compressed));
- if (!compressed_is_preallocated) {
- compressed->resize(destlen);
- }
- CHECK_NE(destlen, 0);
- break;
- }
-#endif // FASTLZ_VERSION
-
- case SNAPPY: {
- size_t destlen;
- snappy::RawCompress(input, input_size,
- string_as_array(compressed),
- &destlen);
- CHECK_LE(destlen, snappy::MaxCompressedLength(input_size));
- if (!compressed_is_preallocated) {
- compressed->resize(destlen);
- }
- break;
- }
-
-
- default: {
- return false; // the asked-for library wasn't compiled in
- }
- }
- return true;
-}
-
-static bool Uncompress(const string& compressed, CompressorType comp,
- int size, string* output) {
- switch (comp) {
-#ifdef ZLIB_VERSION
- case ZLIB: {
- output->resize(size);
- ZLib zlib;
- uLongf destlen = output->size();
- int ret = zlib.Uncompress(
- reinterpret_cast<Bytef*>(string_as_array(output)),
- &destlen,
- reinterpret_cast<const Bytef*>(compressed.data()),
- compressed.size());
- CHECK_EQ(Z_OK, ret);
- CHECK_EQ(static_cast<uLongf>(size), destlen);
- break;
- }
-#endif // ZLIB_VERSION
-
-#ifdef LZO_VERSION
- case LZO: {
- output->resize(size);
- lzo_uint destlen;
- int ret = lzo1x_decompress(
- reinterpret_cast<const uint8*>(compressed.data()),
- compressed.size(),
- reinterpret_cast<uint8*>(string_as_array(output)),
- &destlen,
- NULL);
- CHECK_EQ(LZO_E_OK, ret);
- CHECK_EQ(static_cast<lzo_uint>(size), destlen);
- break;
- }
-#endif // LZO_VERSION
-
-#ifdef LZF_VERSION
- case LIBLZF: {
- output->resize(size);
- int destlen = lzf_decompress(compressed.data(),
- compressed.size(),
- string_as_array(output),
- output->size());
- if (destlen == 0) {
- // This error probably means we had decided not to compress,
- // and thus have stored input in output directly.
- output->assign(compressed.data(), compressed.size());
- destlen = compressed.size();
- }
- CHECK_EQ(destlen, size);
- break;
- }
-#endif // LZF_VERSION
-
-#ifdef QLZ_VERSION_MAJOR
- case QUICKLZ: {
- output->resize(size);
- qlz_state_decompress *state_decompress = new qlz_state_decompress;
- int destlen = qlz_decompress(compressed.data(),
- string_as_array(output),
- state_decompress);
- delete state_decompress;
- CHECK_EQ(destlen, size);
- break;
- }
-#endif // QLZ_VERSION_MAJOR
-
-#ifdef FASTLZ_VERSION
- case FASTLZ: {
- output->resize(size);
- int destlen = fastlz_decompress(compressed.data(),
- compressed.length(),
- string_as_array(output),
- size);
- CHECK_EQ(destlen, size);
- break;
- }
-#endif // FASTLZ_VERSION
-
- case SNAPPY: {
- snappy::RawUncompress(compressed.data(), compressed.size(),
- string_as_array(output));
- break;
- }
-
-
- default: {
- return false; // the asked-for library wasn't compiled in
- }
- }
- return true;
-}
-
-static void Measure(const char* data,
- size_t length,
- CompressorType comp,
- int repeats,
- int block_size) {
- // Run tests a few time and pick median running times
- static const int kRuns = 5;
- double ctime[kRuns];
- double utime[kRuns];
- int compressed_size = 0;
-
- {
- // Chop the input into blocks
- int num_blocks = (length + block_size - 1) / block_size;
- vector<const char*> input(num_blocks);
- vector<size_t> input_length(num_blocks);
- vector<string> compressed(num_blocks);
- vector<string> output(num_blocks);
- for (int b = 0; b < num_blocks; b++) {
- int input_start = b * block_size;
- int input_limit = min<int>((b+1)*block_size, length);
- input[b] = data+input_start;
- input_length[b] = input_limit-input_start;
-
- // Pre-grow the output buffer so we don't measure string append time.
- compressed[b].resize(MinimumRequiredOutputSpace(block_size, comp));
- }
-
- // First, try one trial compression to make sure the code is compiled in
- if (!Compress(input[0], input_length[0], comp, &compressed[0], true)) {
- LOG(WARNING) << "Skipping " << names[comp] << ": "
- << "library not compiled in";
- return;
- }
-
- for (int run = 0; run < kRuns; run++) {
- CycleTimer ctimer, utimer;
-
- for (int b = 0; b < num_blocks; b++) {
- // Pre-grow the output buffer so we don't measure string append time.
- compressed[b].resize(MinimumRequiredOutputSpace(block_size, comp));
- }
-
- ctimer.Start();
- for (int b = 0; b < num_blocks; b++)
- for (int i = 0; i < repeats; i++)
- Compress(input[b], input_length[b], comp, &compressed[b], true);
- ctimer.Stop();
-
- // Compress once more, with resizing, so we don't leave junk
- // at the end that will confuse the decompressor.
- for (int b = 0; b < num_blocks; b++) {
- Compress(input[b], input_length[b], comp, &compressed[b], false);
- }
-
- for (int b = 0; b < num_blocks; b++) {
- output[b].resize(input_length[b]);
- }
-
- utimer.Start();
- for (int i = 0; i < repeats; i++)
- for (int b = 0; b < num_blocks; b++)
- Uncompress(compressed[b], comp, input_length[b], &output[b]);
- utimer.Stop();
-
- ctime[run] = ctimer.Get();
- utime[run] = utimer.Get();
- }
-
- compressed_size = 0;
- for (int i = 0; i < compressed.size(); i++) {
- compressed_size += compressed[i].size();
- }
- }
-
- sort(ctime, ctime + kRuns);
- sort(utime, utime + kRuns);
- const int med = kRuns/2;
-
- float comp_rate = (length / ctime[med]) * repeats / 1048576.0;
- float uncomp_rate = (length / utime[med]) * repeats / 1048576.0;
- string x = names[comp];
- x += ":";
- string urate = (uncomp_rate >= 0)
- ? StringPrintf("%.1f", uncomp_rate)
- : string("?");
- printf("%-7s [b %dM] bytes %6d -> %6d %4.1f%% "
- "comp %5.1f MB/s uncomp %5s MB/s\n",
- x.c_str(),
- block_size/(1<<20),
- static_cast<int>(length), static_cast<uint32>(compressed_size),
- (compressed_size * 100.0) / max<int>(1, length),
- comp_rate,
- urate.c_str());
-}
-
-
-static int VerifyString(const string& input) {
- string compressed;
- DataEndingAtUnreadablePage i(input);
- const size_t written = snappy::Compress(i.data(), i.size(), &compressed);
- CHECK_EQ(written, compressed.size());
- CHECK_LE(compressed.size(),
- snappy::MaxCompressedLength(input.size()));
- CHECK(snappy::IsValidCompressedBuffer(compressed.data(), compressed.size()));
-
- string uncompressed;
- DataEndingAtUnreadablePage c(compressed);
- CHECK(snappy::Uncompress(c.data(), c.size(), &uncompressed));
- CHECK_EQ(uncompressed, input);
- return uncompressed.size();
-}
-
-
-// Test that data compressed by a compressor that does not
-// obey block sizes is uncompressed properly.
-static void VerifyNonBlockedCompression(const string& input) {
- if (input.length() > snappy::kBlockSize) {
- // We cannot test larger blocks than the maximum block size, obviously.
- return;
- }
-
- string prefix;
- Varint::Append32(&prefix, input.size());
-
- // Setup compression table
- snappy::internal::WorkingMemory wmem;
- int table_size;
- uint16* table = wmem.GetHashTable(input.size(), &table_size);
-
- // Compress entire input in one shot
- string compressed;
- compressed += prefix;
- compressed.resize(prefix.size()+snappy::MaxCompressedLength(input.size()));
- char* dest = string_as_array(&compressed) + prefix.size();
- char* end = snappy::internal::CompressFragment(input.data(), input.size(),
- dest, table, table_size);
- compressed.resize(end - compressed.data());
-
- // Uncompress into string
- string uncomp_str;
- CHECK(snappy::Uncompress(compressed.data(), compressed.size(), &uncomp_str));
- CHECK_EQ(uncomp_str, input);
-
-}
-
-// Expand the input so that it is at least K times as big as block size
-static string Expand(const string& input) {
- static const int K = 3;
- string data = input;
- while (data.size() < K * snappy::kBlockSize) {
- data += input;
- }
- return data;
-}
-
-static int Verify(const string& input) {
- VLOG(1) << "Verifying input of size " << input.size();
-
- // Compress using string based routines
- const int result = VerifyString(input);
-
-
- VerifyNonBlockedCompression(input);
- if (!input.empty()) {
- VerifyNonBlockedCompression(Expand(input));
- }
-
-
- return result;
-}
-
-// This test checks to ensure that snappy doesn't coredump if it gets
-// corrupted data.
-
-static bool IsValidCompressedBuffer(const string& c) {
- return snappy::IsValidCompressedBuffer(c.data(), c.size());
-}
-static bool Uncompress(const string& c, string* u) {
- return snappy::Uncompress(c.data(), c.size(), u);
-}
-
-TYPED_TEST(CorruptedTest, VerifyCorrupted) {
- string source = "making sure we don't crash with corrupted input";
- VLOG(1) << source;
- string dest;
- TypeParam uncmp;
- snappy::Compress(source.data(), source.size(), &dest);
-
- // Mess around with the data. It's hard to simulate all possible
- // corruptions; this is just one example ...
- CHECK_GT(dest.size(), 3);
- dest[1]--;
- dest[3]++;
- // this really ought to fail.
- CHECK(!IsValidCompressedBuffer(TypeParam(dest)));
- CHECK(!Uncompress(TypeParam(dest), &uncmp));
-
- // This is testing for a security bug - a buffer that decompresses to 100k
- // but we lie in the snappy header and only reserve 0 bytes of memory :)
- source.resize(100000);
- for (int i = 0; i < source.length(); ++i) {
- source[i] = 'A';
- }
- snappy::Compress(source.data(), source.size(), &dest);
- dest[0] = dest[1] = dest[2] = dest[3] = 0;
- CHECK(!IsValidCompressedBuffer(TypeParam(dest)));
- CHECK(!Uncompress(TypeParam(dest), &uncmp));
-
- if (sizeof(void *) == 4) {
- // Another security check; check a crazy big length can't DoS us with an
- // over-allocation.
- // Currently this is done only for 32-bit builds. On 64-bit builds,
- // where 3 GB might be an acceptable allocation size, Uncompress()
- // attempts to decompress, and sometimes causes the test to run out of
- // memory.
- dest[0] = dest[1] = dest[2] = dest[3] = 0xff;
- // This decodes to a really large size, i.e., about 3 GB.
- dest[4] = 'k';
- CHECK(!IsValidCompressedBuffer(TypeParam(dest)));
- CHECK(!Uncompress(TypeParam(dest), &uncmp));
- } else {
- LOG(WARNING) << "Crazy decompression lengths not checked on 64-bit build";
- }
-
- // This decodes to about 2 MB; much smaller, but should still fail.
- dest[0] = dest[1] = dest[2] = 0xff;
- dest[3] = 0x00;
- CHECK(!IsValidCompressedBuffer(TypeParam(dest)));
- CHECK(!Uncompress(TypeParam(dest), &uncmp));
-
- // try reading stuff in from a bad file.
- for (int i = 1; i <= 3; ++i) {
- string data = ReadTestDataFile(StringPrintf("baddata%d.snappy", i).c_str());
- string uncmp;
- // check that we don't return a crazy length
- size_t ulen;
- CHECK(!snappy::GetUncompressedLength(data.data(), data.size(), &ulen)
- || (ulen < (1<<20)));
- uint32 ulen2;
- snappy::ByteArraySource source(data.data(), data.size());
- CHECK(!snappy::GetUncompressedLength(&source, &ulen2) ||
- (ulen2 < (1<<20)));
- CHECK(!IsValidCompressedBuffer(TypeParam(data)));
- CHECK(!Uncompress(TypeParam(data), &uncmp));
- }
-}
-
-// Helper routines to construct arbitrary compressed strings.
-// These mirror the compression code in snappy.cc, but are copied
-// here so that we can bypass some limitations in the how snappy.cc
-// invokes these routines.
-static void AppendLiteral(string* dst, const string& literal) {
- if (literal.empty()) return;
- int n = literal.size() - 1;
- if (n < 60) {
- // Fit length in tag byte
- dst->push_back(0 | (n << 2));
- } else {
- // Encode in upcoming bytes
- char number[4];
- int count = 0;
- while (n > 0) {
- number[count++] = n & 0xff;
- n >>= 8;
- }
- dst->push_back(0 | ((59+count) << 2));
- *dst += string(number, count);
- }
- *dst += literal;
-}
-
-static void AppendCopy(string* dst, int offset, int length) {
- while (length > 0) {
- // Figure out how much to copy in one shot
- int to_copy;
- if (length >= 68) {
- to_copy = 64;
- } else if (length > 64) {
- to_copy = 60;
- } else {
- to_copy = length;
- }
- length -= to_copy;
-
- if ((to_copy < 12) && (offset < 2048)) {
- assert(to_copy-4 < 8); // Must fit in 3 bits
- dst->push_back(1 | ((to_copy-4) << 2) | ((offset >> 8) << 5));
- dst->push_back(offset & 0xff);
- } else if (offset < 65536) {
- dst->push_back(2 | ((to_copy-1) << 2));
- dst->push_back(offset & 0xff);
- dst->push_back(offset >> 8);
- } else {
- dst->push_back(3 | ((to_copy-1) << 2));
- dst->push_back(offset & 0xff);
- dst->push_back((offset >> 8) & 0xff);
- dst->push_back((offset >> 16) & 0xff);
- dst->push_back((offset >> 24) & 0xff);
- }
- }
-}
-
-TEST(Snappy, SimpleTests) {
- Verify("");
- Verify("a");
- Verify("ab");
- Verify("abc");
-
- Verify("aaaaaaa" + string(16, 'b') + string("aaaaa") + "abc");
- Verify("aaaaaaa" + string(256, 'b') + string("aaaaa") + "abc");
- Verify("aaaaaaa" + string(2047, 'b') + string("aaaaa") + "abc");
- Verify("aaaaaaa" + string(65536, 'b') + string("aaaaa") + "abc");
- Verify("abcaaaaaaa" + string(65536, 'b') + string("aaaaa") + "abc");
-}
-
-// Verify max blowup (lots of four-byte copies)
-TEST(Snappy, MaxBlowup) {
- string input;
- for (int i = 0; i < 20000; i++) {
- ACMRandom rnd(i);
- uint32 bytes = static_cast<uint32>(rnd.Next());
- input.append(reinterpret_cast<char*>(&bytes), sizeof(bytes));
- }
- for (int i = 19999; i >= 0; i--) {
- ACMRandom rnd(i);
- uint32 bytes = static_cast<uint32>(rnd.Next());
- input.append(reinterpret_cast<char*>(&bytes), sizeof(bytes));
- }
- Verify(input);
-}
-
-TEST(Snappy, RandomData) {
- ACMRandom rnd(FLAGS_test_random_seed);
-
- const int num_ops = 20000;
- for (int i = 0; i < num_ops; i++) {
- if ((i % 1000) == 0) {
- VLOG(0) << "Random op " << i << " of " << num_ops;
- }
-
- string x;
- int len = rnd.Uniform(4096);
- if (i < 100) {
- len = 65536 + rnd.Uniform(65536);
- }
- while (x.size() < len) {
- int run_len = 1;
- if (rnd.OneIn(10)) {
- run_len = rnd.Skewed(8);
- }
- char c = (i < 100) ? rnd.Uniform(256) : rnd.Skewed(3);
- while (run_len-- > 0 && x.size() < len) {
- x += c;
- }
- }
-
- Verify(x);
- }
-}
-
-TEST(Snappy, FourByteOffset) {
- // The new compressor cannot generate four-byte offsets since
- // it chops up the input into 32KB pieces. So we hand-emit the
- // copy manually.
-
- // The two fragments that make up the input string.
- string fragment1 = "012345689abcdefghijklmnopqrstuvwxyz";
- string fragment2 = "some other string";
-
- // How many times each fragment is emitted.
- const int n1 = 2;
- const int n2 = 100000 / fragment2.size();
- const int length = n1 * fragment1.size() + n2 * fragment2.size();
-
- string compressed;
- Varint::Append32(&compressed, length);
-
- AppendLiteral(&compressed, fragment1);
- string src = fragment1;
- for (int i = 0; i < n2; i++) {
- AppendLiteral(&compressed, fragment2);
- src += fragment2;
- }
- AppendCopy(&compressed, src.size(), fragment1.size());
- src += fragment1;
- CHECK_EQ(length, src.size());
-
- string uncompressed;
- CHECK(snappy::IsValidCompressedBuffer(compressed.data(), compressed.size()));
- CHECK(snappy::Uncompress(compressed.data(), compressed.size(), &uncompressed));
- CHECK_EQ(uncompressed, src);
-}
-
-
-static bool CheckUncompressedLength(const string& compressed,
- size_t* ulength) {
- const bool result1 = snappy::GetUncompressedLength(compressed.data(),
- compressed.size(),
- ulength);
-
- snappy::ByteArraySource source(compressed.data(), compressed.size());
- uint32 length;
- const bool result2 = snappy::GetUncompressedLength(&source, &length);
- CHECK_EQ(result1, result2);
- return result1;
-}
-
-TEST(SnappyCorruption, TruncatedVarint) {
- string compressed, uncompressed;
- size_t ulength;
- compressed.push_back('\xf0');
- CHECK(!CheckUncompressedLength(compressed, &ulength));
- CHECK(!snappy::IsValidCompressedBuffer(compressed.data(), compressed.size()));
- CHECK(!snappy::Uncompress(compressed.data(), compressed.size(),
- &uncompressed));
-}
-
-TEST(SnappyCorruption, UnterminatedVarint) {
- string compressed, uncompressed;
- size_t ulength;
- compressed.push_back(128);
- compressed.push_back(128);
- compressed.push_back(128);
- compressed.push_back(128);
- compressed.push_back(128);
- compressed.push_back(10);
- CHECK(!CheckUncompressedLength(compressed, &ulength));
- CHECK(!snappy::IsValidCompressedBuffer(compressed.data(), compressed.size()));
- CHECK(!snappy::Uncompress(compressed.data(), compressed.size(),
- &uncompressed));
-}
-
-TEST(Snappy, ReadPastEndOfBuffer) {
- // Check that we do not read past end of input
-
- // Make a compressed string that ends with a single-byte literal
- string compressed;
- Varint::Append32(&compressed, 1);
- AppendLiteral(&compressed, "x");
-
- string uncompressed;
- DataEndingAtUnreadablePage c(compressed);
- CHECK(snappy::Uncompress(c.data(), c.size(), &uncompressed));
- CHECK_EQ(uncompressed, string("x"));
-}
-
-// Check for an infinite loop caused by a copy with offset==0
-TEST(Snappy, ZeroOffsetCopy) {
- const char* compressed = "\x40\x12\x00\x00";
- // \x40 Length (must be > kMaxIncrementCopyOverflow)
- // \x12\x00\x00 Copy with offset==0, length==5
- char uncompressed[100];
- EXPECT_FALSE(snappy::RawUncompress(compressed, 4, uncompressed));
-}
-
-TEST(Snappy, ZeroOffsetCopyValidation) {
- const char* compressed = "\x05\x12\x00\x00";
- // \x05 Length
- // \x12\x00\x00 Copy with offset==0, length==5
- EXPECT_FALSE(snappy::IsValidCompressedBuffer(compressed, 4));
-}
-
-
-namespace {
-
-int TestFindMatchLength(const char* s1, const char *s2, unsigned length) {
- return snappy::internal::FindMatchLength(s1, s2, s2 + length);
-}
-
-} // namespace
-
-TEST(Snappy, FindMatchLength) {
- // Exercise all different code paths through the function.
- // 64-bit version:
-
- // Hit s1_limit in 64-bit loop, hit s1_limit in single-character loop.
- EXPECT_EQ(6, TestFindMatchLength("012345", "012345", 6));
- EXPECT_EQ(11, TestFindMatchLength("01234567abc", "01234567abc", 11));
-
- // Hit s1_limit in 64-bit loop, find a non-match in single-character loop.
- EXPECT_EQ(9, TestFindMatchLength("01234567abc", "01234567axc", 9));
-
- // Same, but edge cases.
- EXPECT_EQ(11, TestFindMatchLength("01234567abc!", "01234567abc!", 11));
- EXPECT_EQ(11, TestFindMatchLength("01234567abc!", "01234567abc?", 11));
-
- // Find non-match at once in first loop.
- EXPECT_EQ(0, TestFindMatchLength("01234567xxxxxxxx", "?1234567xxxxxxxx", 16));
- EXPECT_EQ(1, TestFindMatchLength("01234567xxxxxxxx", "0?234567xxxxxxxx", 16));
- EXPECT_EQ(4, TestFindMatchLength("01234567xxxxxxxx", "01237654xxxxxxxx", 16));
- EXPECT_EQ(7, TestFindMatchLength("01234567xxxxxxxx", "0123456?xxxxxxxx", 16));
-
- // Find non-match in first loop after one block.
- EXPECT_EQ(8, TestFindMatchLength("abcdefgh01234567xxxxxxxx",
- "abcdefgh?1234567xxxxxxxx", 24));
- EXPECT_EQ(9, TestFindMatchLength("abcdefgh01234567xxxxxxxx",
- "abcdefgh0?234567xxxxxxxx", 24));
- EXPECT_EQ(12, TestFindMatchLength("abcdefgh01234567xxxxxxxx",
- "abcdefgh01237654xxxxxxxx", 24));
- EXPECT_EQ(15, TestFindMatchLength("abcdefgh01234567xxxxxxxx",
- "abcdefgh0123456?xxxxxxxx", 24));
-
- // 32-bit version:
-
- // Short matches.
- EXPECT_EQ(0, TestFindMatchLength("01234567", "?1234567", 8));
- EXPECT_EQ(1, TestFindMatchLength("01234567", "0?234567", 8));
- EXPECT_EQ(2, TestFindMatchLength("01234567", "01?34567", 8));
- EXPECT_EQ(3, TestFindMatchLength("01234567", "012?4567", 8));
- EXPECT_EQ(4, TestFindMatchLength("01234567", "0123?567", 8));
- EXPECT_EQ(5, TestFindMatchLength("01234567", "01234?67", 8));
- EXPECT_EQ(6, TestFindMatchLength("01234567", "012345?7", 8));
- EXPECT_EQ(7, TestFindMatchLength("01234567", "0123456?", 8));
- EXPECT_EQ(7, TestFindMatchLength("01234567", "0123456?", 7));
- EXPECT_EQ(7, TestFindMatchLength("01234567!", "0123456??", 7));
-
- // Hit s1_limit in 32-bit loop, hit s1_limit in single-character loop.
- EXPECT_EQ(10, TestFindMatchLength("xxxxxxabcd", "xxxxxxabcd", 10));
- EXPECT_EQ(10, TestFindMatchLength("xxxxxxabcd?", "xxxxxxabcd?", 10));
- EXPECT_EQ(13, TestFindMatchLength("xxxxxxabcdef", "xxxxxxabcdef", 13));
-
- // Same, but edge cases.
- EXPECT_EQ(12, TestFindMatchLength("xxxxxx0123abc!", "xxxxxx0123abc!", 12));
- EXPECT_EQ(12, TestFindMatchLength("xxxxxx0123abc!", "xxxxxx0123abc?", 12));
-
- // Hit s1_limit in 32-bit loop, find a non-match in single-character loop.
- EXPECT_EQ(11, TestFindMatchLength("xxxxxx0123abc", "xxxxxx0123axc", 13));
-
- // Find non-match at once in first loop.
- EXPECT_EQ(6, TestFindMatchLength("xxxxxx0123xxxxxxxx",
- "xxxxxx?123xxxxxxxx", 18));
- EXPECT_EQ(7, TestFindMatchLength("xxxxxx0123xxxxxxxx",
- "xxxxxx0?23xxxxxxxx", 18));
- EXPECT_EQ(8, TestFindMatchLength("xxxxxx0123xxxxxxxx",
- "xxxxxx0132xxxxxxxx", 18));
- EXPECT_EQ(9, TestFindMatchLength("xxxxxx0123xxxxxxxx",
- "xxxxxx012?xxxxxxxx", 18));
-
- // Same, but edge cases.
- EXPECT_EQ(6, TestFindMatchLength("xxxxxx0123", "xxxxxx?123", 10));
- EXPECT_EQ(7, TestFindMatchLength("xxxxxx0123", "xxxxxx0?23", 10));
- EXPECT_EQ(8, TestFindMatchLength("xxxxxx0123", "xxxxxx0132", 10));
- EXPECT_EQ(9, TestFindMatchLength("xxxxxx0123", "xxxxxx012?", 10));
-
- // Find non-match in first loop after one block.
- EXPECT_EQ(10, TestFindMatchLength("xxxxxxabcd0123xx",
- "xxxxxxabcd?123xx", 16));
- EXPECT_EQ(11, TestFindMatchLength("xxxxxxabcd0123xx",
- "xxxxxxabcd0?23xx", 16));
- EXPECT_EQ(12, TestFindMatchLength("xxxxxxabcd0123xx",
- "xxxxxxabcd0132xx", 16));
- EXPECT_EQ(13, TestFindMatchLength("xxxxxxabcd0123xx",
- "xxxxxxabcd012?xx", 16));
-
- // Same, but edge cases.
- EXPECT_EQ(10, TestFindMatchLength("xxxxxxabcd0123", "xxxxxxabcd?123", 14));
- EXPECT_EQ(11, TestFindMatchLength("xxxxxxabcd0123", "xxxxxxabcd0?23", 14));
- EXPECT_EQ(12, TestFindMatchLength("xxxxxxabcd0123", "xxxxxxabcd0132", 14));
- EXPECT_EQ(13, TestFindMatchLength("xxxxxxabcd0123", "xxxxxxabcd012?", 14));
-}
-
-TEST(Snappy, FindMatchLengthRandom) {
- const int kNumTrials = 10000;
- const int kTypicalLength = 10;
- ACMRandom rnd(FLAGS_test_random_seed);
-
- for (int i = 0; i < kNumTrials; i++) {
- string s, t;
- char a = rnd.Rand8();
- char b = rnd.Rand8();
- while (!rnd.OneIn(kTypicalLength)) {
- s.push_back(rnd.OneIn(2) ? a : b);
- t.push_back(rnd.OneIn(2) ? a : b);
- }
- DataEndingAtUnreadablePage u(s);
- DataEndingAtUnreadablePage v(t);
- int matched = snappy::internal::FindMatchLength(
- u.data(), v.data(), v.data() + t.size());
- if (matched == t.size()) {
- EXPECT_EQ(s, t);
- } else {
- EXPECT_NE(s[matched], t[matched]);
- for (int j = 0; j < matched; j++) {
- EXPECT_EQ(s[j], t[j]);
- }
- }
- }
-}
-
-
-static void CompressFile(const char* fname) {
- string fullinput;
- File::ReadFileToStringOrDie(fname, &fullinput);
-
- string compressed;
- Compress(fullinput.data(), fullinput.size(), SNAPPY, &compressed, false);
-
- File::WriteStringToFileOrDie(compressed,
- string(fname).append(".comp").c_str());
-}
-
-static void UncompressFile(const char* fname) {
- string fullinput;
- File::ReadFileToStringOrDie(fname, &fullinput);
-
- size_t uncompLength;
- CHECK(CheckUncompressedLength(fullinput, &uncompLength));
-
- string uncompressed;
- uncompressed.resize(uncompLength);
- CHECK(snappy::Uncompress(fullinput.data(), fullinput.size(), &uncompressed));
-
- File::WriteStringToFileOrDie(uncompressed,
- string(fname).append(".uncomp").c_str());
-}
-
-static void MeasureFile(const char* fname) {
- string fullinput;
- File::ReadFileToStringOrDie(fname, &fullinput);
- printf("%-40s :\n", fname);
-
- int start_len = (FLAGS_start_len < 0) ? fullinput.size() : FLAGS_start_len;
- int end_len = fullinput.size();
- if (FLAGS_end_len >= 0) {
- end_len = min<int>(fullinput.size(), FLAGS_end_len);
- }
- for (int len = start_len; len <= end_len; len++) {
- const char* const input = fullinput.data();
- int repeats = (FLAGS_bytes + len) / (len + 1);
- if (FLAGS_zlib) Measure(input, len, ZLIB, repeats, 1024<<10);
- if (FLAGS_lzo) Measure(input, len, LZO, repeats, 1024<<10);
- if (FLAGS_liblzf) Measure(input, len, LIBLZF, repeats, 1024<<10);
- if (FLAGS_quicklz) Measure(input, len, QUICKLZ, repeats, 1024<<10);
- if (FLAGS_fastlz) Measure(input, len, FASTLZ, repeats, 1024<<10);
- if (FLAGS_snappy) Measure(input, len, SNAPPY, repeats, 4096<<10);
-
- // For block-size based measurements
- if (0 && FLAGS_snappy) {
- Measure(input, len, SNAPPY, repeats, 8<<10);
- Measure(input, len, SNAPPY, repeats, 16<<10);
- Measure(input, len, SNAPPY, repeats, 32<<10);
- Measure(input, len, SNAPPY, repeats, 64<<10);
- Measure(input, len, SNAPPY, repeats, 256<<10);
- Measure(input, len, SNAPPY, repeats, 1024<<10);
- }
- }
-}
-
-static struct {
- const char* label;
- const char* filename;
-} files[] = {
- { "html", "html" },
- { "urls", "urls.10K" },
- { "jpg", "house.jpg" },
- { "pdf", "mapreduce-osdi-1.pdf" },
- { "html4", "html_x_4" },
- { "cp", "cp.html" },
- { "c", "fields.c" },
- { "lsp", "grammar.lsp" },
- { "xls", "kennedy.xls" },
- { "txt1", "alice29.txt" },
- { "txt2", "asyoulik.txt" },
- { "txt3", "lcet10.txt" },
- { "txt4", "plrabn12.txt" },
- { "bin", "ptt5" },
- { "sum", "sum" },
- { "man", "xargs.1" },
- { "pb", "geo.protodata" },
- { "gaviota", "kppkn.gtb" },
-};
-
-static void BM_UFlat(int iters, int arg) {
- StopBenchmarkTiming();
-
- // Pick file to process based on "arg"
- CHECK_GE(arg, 0);
- CHECK_LT(arg, ARRAYSIZE(files));
- string contents = ReadTestDataFile(files[arg].filename);
-
- string zcontents;
- snappy::Compress(contents.data(), contents.size(), &zcontents);
- char* dst = new char[contents.size()];
-
- SetBenchmarkBytesProcessed(static_cast<int64>(iters) *
- static_cast<int64>(contents.size()));
- SetBenchmarkLabel(files[arg].label);
- StartBenchmarkTiming();
- while (iters-- > 0) {
- CHECK(snappy::RawUncompress(zcontents.data(), zcontents.size(), dst));
- }
- StopBenchmarkTiming();
-
- delete[] dst;
-}
-BENCHMARK(BM_UFlat)->DenseRange(0, 17);
-
-static void BM_UValidate(int iters, int arg) {
- StopBenchmarkTiming();
-
- // Pick file to process based on "arg"
- CHECK_GE(arg, 0);
- CHECK_LT(arg, ARRAYSIZE(files));
- string contents = ReadTestDataFile(files[arg].filename);
-
- string zcontents;
- snappy::Compress(contents.data(), contents.size(), &zcontents);
-
- SetBenchmarkBytesProcessed(static_cast<int64>(iters) *
- static_cast<int64>(contents.size()));
- SetBenchmarkLabel(files[arg].label);
- StartBenchmarkTiming();
- while (iters-- > 0) {
- CHECK(snappy::IsValidCompressedBuffer(zcontents.data(), zcontents.size()));
- }
- StopBenchmarkTiming();
-}
-BENCHMARK(BM_UValidate)->DenseRange(0, 4);
-
-
-static void BM_ZFlat(int iters, int arg) {
- StopBenchmarkTiming();
-
- // Pick file to process based on "arg"
- CHECK_GE(arg, 0);
- CHECK_LT(arg, ARRAYSIZE(files));
- string contents = ReadTestDataFile(files[arg].filename);
-
- char* dst = new char[snappy::MaxCompressedLength(contents.size())];
-
- SetBenchmarkBytesProcessed(static_cast<int64>(iters) *
- static_cast<int64>(contents.size()));
- StartBenchmarkTiming();
-
- size_t zsize = 0;
- while (iters-- > 0) {
- snappy::RawCompress(contents.data(), contents.size(), dst, &zsize);
- }
- StopBenchmarkTiming();
- const double compression_ratio =
- static_cast<double>(zsize) / std::max<size_t>(1, contents.size());
- SetBenchmarkLabel(StringPrintf("%s (%.2f %%)",
- files[arg].label, 100.0 * compression_ratio));
- VLOG(0) << StringPrintf("compression for %s: %zd -> %zd bytes",
- files[arg].label, contents.size(), zsize);
- delete[] dst;
-}
-BENCHMARK(BM_ZFlat)->DenseRange(0, 17);
-
-
-} // namespace snappy
-
-
-int main(int argc, char** argv) {
- InitGoogle(argv[0], &argc, &argv, true);
- File::Init();
- RunSpecifiedBenchmarks();
-
-
- if (argc >= 2) {
- for (int arg = 1; arg < argc; arg++) {
- if (FLAGS_write_compressed) {
- CompressFile(argv[arg]);
- } else if (FLAGS_write_uncompressed) {
- UncompressFile(argv[arg]);
- } else {
- MeasureFile(argv[arg]);
- }
- }
- return 0;
- }
-
- return RUN_ALL_TESTS();
-}
+++ /dev/null
-timestamp for config.h
+++ /dev/null
-\r
-\r
-\r
-\r
- ALICE'S ADVENTURES IN WONDERLAND\r
-\r
- Lewis Carroll\r
-\r
- THE MILLENNIUM FULCRUM EDITION 2.9\r
-\r
-\r
-\r
-\r
- CHAPTER I\r
-\r
- Down the Rabbit-Hole\r
-\r
-\r
- Alice was beginning to get very tired of sitting by her sister\r
-on the bank, and of having nothing to do: once or twice she had\r
-peeped into the book her sister was reading, but it had no\r
-pictures or conversations in it, `and what is the use of a book,'\r
-thought Alice `without pictures or conversation?'\r
-\r
- So she was considering in her own mind (as well as she could,\r
-for the hot day made her feel very sleepy and stupid), whether\r
-the pleasure of making a daisy-chain would be worth the trouble\r
-of getting up and picking the daisies, when suddenly a White\r
-Rabbit with pink eyes ran close by her.\r
-\r
- There was nothing so VERY remarkable in that; nor did Alice\r
-think it so VERY much out of the way to hear the Rabbit say to\r
-itself, `Oh dear! Oh dear! I shall be late!' (when she thought\r
-it over afterwards, it occurred to her that she ought to have\r
-wondered at this, but at the time it all seemed quite natural);\r
-but when the Rabbit actually TOOK A WATCH OUT OF ITS WAISTCOAT-\r
-POCKET, and looked at it, and then hurried on, Alice started to\r
-her feet, for it flashed across her mind that she had never\r
-before seen a rabbit with either a waistcoat-pocket, or a watch to\r
-take out of it, and burning with curiosity, she ran across the\r
-field after it, and fortunately was just in time to see it pop\r
-down a large rabbit-hole under the hedge.\r
-\r
- In another moment down went Alice after it, never once\r
-considering how in the world she was to get out again.\r
-\r
- The rabbit-hole went straight on like a tunnel for some way,\r
-and then dipped suddenly down, so suddenly that Alice had not a\r
-moment to think about stopping herself before she found herself\r
-falling down a very deep well.\r
-\r
- Either the well was very deep, or she fell very slowly, for she\r
-had plenty of time as she went down to look about her and to\r
-wonder what was going to happen next. First, she tried to look\r
-down and make out what she was coming to, but it was too dark to\r
-see anything; then she looked at the sides of the well, and\r
-noticed that they were filled with cupboards and book-shelves;\r
-here and there she saw maps and pictures hung upon pegs. She\r
-took down a jar from one of the shelves as she passed; it was\r
-labelled `ORANGE MARMALADE', but to her great disappointment it\r
-was empty: she did not like to drop the jar for fear of killing\r
-somebody, so managed to put it into one of the cupboards as she\r
-fell past it.\r
-\r
- `Well!' thought Alice to herself, `after such a fall as this, I\r
-shall think nothing of tumbling down stairs! How brave they'll\r
-all think me at home! Why, I wouldn't say anything about it,\r
-even if I fell off the top of the house!' (Which was very likely\r
-true.)\r
-\r
- Down, down, down. Would the fall NEVER come to an end! `I\r
-wonder how many miles I've fallen by this time?' she said aloud.\r
-`I must be getting somewhere near the centre of the earth. Let\r
-me see: that would be four thousand miles down, I think--' (for,\r
-you see, Alice had learnt several things of this sort in her\r
-lessons in the schoolroom, and though this was not a VERY good\r
-opportunity for showing off her knowledge, as there was no one to\r
-listen to her, still it was good practice to say it over) `--yes,\r
-that's about the right distance--but then I wonder what Latitude\r
-or Longitude I've got to?' (Alice had no idea what Latitude was,\r
-or Longitude either, but thought they were nice grand words to\r
-say.)\r
-\r
- Presently she began again. `I wonder if I shall fall right\r
-THROUGH the earth! How funny it'll seem to come out among the\r
-people that walk with their heads downward! The Antipathies, I\r
-think--' (she was rather glad there WAS no one listening, this\r
-time, as it didn't sound at all the right word) `--but I shall\r
-have to ask them what the name of the country is, you know.\r
-Please, Ma'am, is this New Zealand or Australia?' (and she tried\r
-to curtsey as she spoke--fancy CURTSEYING as you're falling\r
-through the air! Do you think you could manage it?) `And what\r
-an ignorant little girl she'll think me for asking! No, it'll\r
-never do to ask: perhaps I shall see it written up somewhere.'\r
-\r
- Down, down, down. There was nothing else to do, so Alice soon\r
-began talking again. `Dinah'll miss me very much to-night, I\r
-should think!' (Dinah was the cat.) `I hope they'll remember\r
-her saucer of milk at tea-time. Dinah my dear! I wish you were\r
-down here with me! There are no mice in the air, I'm afraid, but\r
-you might catch a bat, and that's very like a mouse, you know.\r
-But do cats eat bats, I wonder?' And here Alice began to get\r
-rather sleepy, and went on saying to herself, in a dreamy sort of\r
-way, `Do cats eat bats? Do cats eat bats?' and sometimes, `Do\r
-bats eat cats?' for, you see, as she couldn't answer either\r
-question, it didn't much matter which way she put it. She felt\r
-that she was dozing off, and had just begun to dream that she\r
-was walking hand in hand with Dinah, and saying to her very\r
-earnestly, `Now, Dinah, tell me the truth: did you ever eat a\r
-bat?' when suddenly, thump! thump! down she came upon a heap of\r
-sticks and dry leaves, and the fall was over.\r
-\r
- Alice was not a bit hurt, and she jumped up on to her feet in a\r
-moment: she looked up, but it was all dark overhead; before her\r
-was another long passage, and the White Rabbit was still in\r
-sight, hurrying down it. There was not a moment to be lost:\r
-away went Alice like the wind, and was just in time to hear it\r
-say, as it turned a corner, `Oh my ears and whiskers, how late\r
-it's getting!' She was close behind it when she turned the\r
-corner, but the Rabbit was no longer to be seen: she found\r
-herself in a long, low hall, which was lit up by a row of lamps\r
-hanging from the roof.\r
-\r
- There were doors all round the hall, but they were all locked;\r
-and when Alice had been all the way down one side and up the\r
-other, trying every door, she walked sadly down the middle,\r
-wondering how she was ever to get out again.\r
-\r
- Suddenly she came upon a little three-legged table, all made of\r
-solid glass; there was nothing on it except a tiny golden key,\r
-and Alice's first thought was that it might belong to one of the\r
-doors of the hall; but, alas! either the locks were too large, or\r
-the key was too small, but at any rate it would not open any of\r
-them. However, on the second time round, she came upon a low\r
-curtain she had not noticed before, and behind it was a little\r
-door about fifteen inches high: she tried the little golden key\r
-in the lock, and to her great delight it fitted!\r
-\r
- Alice opened the door and found that it led into a small\r
-passage, not much larger than a rat-hole: she knelt down and\r
-looked along the passage into the loveliest garden you ever saw.\r
-How she longed to get out of that dark hall, and wander about\r
-among those beds of bright flowers and those cool fountains, but\r
-she could not even get her head though the doorway; `and even if\r
-my head would go through,' thought poor Alice, `it would be of\r
-very little use without my shoulders. Oh, how I wish\r
-I could shut up like a telescope! I think I could, if I only\r
-know how to begin.' For, you see, so many out-of-the-way things\r
-had happened lately, that Alice had begun to think that very few\r
-things indeed were really impossible.\r
-\r
- There seemed to be no use in waiting by the little door, so she\r
-went back to the table, half hoping she might find another key on\r
-it, or at any rate a book of rules for shutting people up like\r
-telescopes: this time she found a little bottle on it, (`which\r
-certainly was not here before,' said Alice,) and round the neck\r
-of the bottle was a paper label, with the words `DRINK ME'\r
-beautifully printed on it in large letters.\r
-\r
- It was all very well to say `Drink me,' but the wise little\r
-Alice was not going to do THAT in a hurry. `No, I'll look\r
-first,' she said, `and see whether it's marked "poison" or not';\r
-for she had read several nice little histories about children who\r
-had got burnt, and eaten up by wild beasts and other unpleasant\r
-things, all because they WOULD not remember the simple rules\r
-their friends had taught them: such as, that a red-hot poker\r
-will burn you if you hold it too long; and that if you cut your\r
-finger VERY deeply with a knife, it usually bleeds; and she had\r
-never forgotten that, if you drink much from a bottle marked\r
-`poison,' it is almost certain to disagree with you, sooner or\r
-later.\r
-\r
- However, this bottle was NOT marked `poison,' so Alice ventured\r
-to taste it, and finding it very nice, (it had, in fact, a sort\r
-of mixed flavour of cherry-tart, custard, pine-apple, roast\r
-turkey, toffee, and hot buttered toast,) she very soon finished\r
-it off.\r
-\r
- * * * * * * *\r
-\r
- * * * * * *\r
-\r
- * * * * * * *\r
-\r
- `What a curious feeling!' said Alice; `I must be shutting up\r
-like a telescope.'\r
-\r
- And so it was indeed: she was now only ten inches high, and\r
-her face brightened up at the thought that she was now the right\r
-size for going though the little door into that lovely garden.\r
-First, however, she waited for a few minutes to see if she was\r
-going to shrink any further: she felt a little nervous about\r
-this; `for it might end, you know,' said Alice to herself, `in my\r
-going out altogether, like a candle. I wonder what I should be\r
-like then?' And she tried to fancy what the flame of a candle is\r
-like after the candle is blown out, for she could not remember\r
-ever having seen such a thing.\r
-\r
- After a while, finding that nothing more happened, she decided\r
-on going into the garden at once; but, alas for poor Alice! when\r
-she got to the door, she found he had forgotten the little golden\r
-key, and when she went back to the table for it, she found she\r
-could not possibly reach it: she could see it quite plainly\r
-through the glass, and she tried her best to climb up one of the\r
-legs of the table, but it was too slippery; and when she had\r
-tired herself out with trying, the poor little thing sat down and\r
-cried.\r
-\r
- `Come, there's no use in crying like that!' said Alice to\r
-herself, rather sharply; `I advise you to leave off this minute!'\r
-She generally gave herself very good advice, (though she very\r
-seldom followed it), and sometimes she scolded herself so\r
-severely as to bring tears into her eyes; and once she remembered\r
-trying to box her own ears for having cheated herself in a game\r
-of croquet she was playing against herself, for this curious\r
-child was very fond of pretending to be two people. `But it's no\r
-use now,' thought poor Alice, `to pretend to be two people! Why,\r
-there's hardly enough of me left to make ONE respectable\r
-person!'\r
-\r
- Soon her eye fell on a little glass box that was lying under\r
-the table: she opened it, and found in it a very small cake, on\r
-which the words `EAT ME' were beautifully marked in currants.\r
-`Well, I'll eat it,' said Alice, `and if it makes me grow larger,\r
-I can reach the key; and if it makes me grow smaller, I can creep\r
-under the door; so either way I'll get into the garden, and I\r
-don't care which happens!'\r
-\r
- She ate a little bit, and said anxiously to herself, `Which\r
-way? Which way?', holding her hand on the top of her head to\r
-feel which way it was growing, and she was quite surprised to\r
-find that she remained the same size: to be sure, this generally\r
-happens when one eats cake, but Alice had got so much into the\r
-way of expecting nothing but out-of-the-way things to happen,\r
-that it seemed quite dull and stupid for life to go on in the\r
-common way.\r
-\r
- So she set to work, and very soon finished off the cake.\r
-\r
- * * * * * * *\r
-\r
- * * * * * *\r
-\r
- * * * * * * *\r
-\r
-\r
-\r
-\r
- CHAPTER II\r
-\r
- The Pool of Tears\r
-\r
-\r
- `Curiouser and curiouser!' cried Alice (she was so much\r
-surprised, that for the moment she quite forgot how to speak good\r
-English); `now I'm opening out like the largest telescope that\r
-ever was! Good-bye, feet!' (for when she looked down at her\r
-feet, they seemed to be almost out of sight, they were getting so\r
-far off). `Oh, my poor little feet, I wonder who will put on\r
-your shoes and stockings for you now, dears? I'm sure _I_ shan't\r
-be able! I shall be a great deal too far off to trouble myself\r
-about you: you must manage the best way you can; --but I must be\r
-kind to them,' thought Alice, `or perhaps they won't walk the\r
-way I want to go! Let me see: I'll give them a new pair of\r
-boots every Christmas.'\r
-\r
- And she went on planning to herself how she would manage it.\r
-`They must go by the carrier,' she thought; `and how funny it'll\r
-seem, sending presents to one's own feet! And how odd the\r
-directions will look!\r
-\r
- ALICE'S RIGHT FOOT, ESQ.\r
- HEARTHRUG,\r
- NEAR THE FENDER,\r
- (WITH ALICE'S LOVE).\r
-\r
-Oh dear, what nonsense I'm talking!'\r
-\r
- Just then her head struck against the roof of the hall: in\r
-fact she was now more than nine feet high, and she at once took\r
-up the little golden key and hurried off to the garden door.\r
-\r
- Poor Alice! It was as much as she could do, lying down on one\r
-side, to look through into the garden with one eye; but to get\r
-through was more hopeless than ever: she sat down and began to\r
-cry again.\r
-\r
- `You ought to be ashamed of yourself,' said Alice, `a great\r
-girl like you,' (she might well say this), `to go on crying in\r
-this way! Stop this moment, I tell you!' But she went on all\r
-the same, shedding gallons of tears, until there was a large pool\r
-all round her, about four inches deep and reaching half down the\r
-hall.\r
-\r
- After a time she heard a little pattering of feet in the\r
-distance, and she hastily dried her eyes to see what was coming.\r
-It was the White Rabbit returning, splendidly dressed, with a\r
-pair of white kid gloves in one hand and a large fan in the\r
-other: he came trotting along in a great hurry, muttering to\r
-himself as he came, `Oh! the Duchess, the Duchess! Oh! won't she\r
-be savage if I've kept her waiting!' Alice felt so desperate\r
-that she was ready to ask help of any one; so, when the Rabbit\r
-came near her, she began, in a low, timid voice, `If you please,\r
-sir--' The Rabbit started violently, dropped the white kid\r
-gloves and the fan, and skurried away into the darkness as hard\r
-as he could go.\r
-\r
- Alice took up the fan and gloves, and, as the hall was very\r
-hot, she kept fanning herself all the time she went on talking:\r
-`Dear, dear! How queer everything is to-day! And yesterday\r
-things went on just as usual. I wonder if I've been changed in\r
-the night? Let me think: was I the same when I got up this\r
-morning? I almost think I can remember feeling a little\r
-different. But if I'm not the same, the next question is, Who in\r
-the world am I? Ah, THAT'S the great puzzle!' And she began\r
-thinking over all the children she knew that were of the same age\r
-as herself, to see if she could have been changed for any of\r
-them.\r
-\r
- `I'm sure I'm not Ada,' she said, `for her hair goes in such\r
-long ringlets, and mine doesn't go in ringlets at all; and I'm\r
-sure I can't be Mabel, for I know all sorts of things, and she,\r
-oh! she knows such a very little! Besides, SHE'S she, and I'm I,\r
-and--oh dear, how puzzling it all is! I'll try if I know all the\r
-things I used to know. Let me see: four times five is twelve,\r
-and four times six is thirteen, and four times seven is--oh dear!\r
-I shall never get to twenty at that rate! However, the\r
-Multiplication Table doesn't signify: let's try Geography.\r
-London is the capital of Paris, and Paris is the capital of Rome,\r
-and Rome--no, THAT'S all wrong, I'm certain! I must have been\r
-changed for Mabel! I'll try and say "How doth the little--"'\r
-and she crossed her hands on her lap as if she were saying lessons,\r
-and began to repeat it, but her voice sounded hoarse and\r
-strange, and the words did not come the same as they used to do:--\r
-\r
- `How doth the little crocodile\r
- Improve his shining tail,\r
- And pour the waters of the Nile\r
- On every golden scale!\r
-\r
- `How cheerfully he seems to grin,\r
- How neatly spread his claws,\r
- And welcome little fishes in\r
- With gently smiling jaws!'\r
-\r
- `I'm sure those are not the right words,' said poor Alice, and\r
-her eyes filled with tears again as she went on, `I must be Mabel\r
-after all, and I shall have to go and live in that poky little\r
-house, and have next to no toys to play with, and oh! ever so\r
-many lessons to learn! No, I've made up my mind about it; if I'm\r
-Mabel, I'll stay down here! It'll be no use their putting their\r
-heads down and saying "Come up again, dear!" I shall only look\r
-up and say "Who am I then? Tell me that first, and then, if I\r
-like being that person, I'll come up: if not, I'll stay down\r
-here till I'm somebody else"--but, oh dear!' cried Alice, with a\r
-sudden burst of tears, `I do wish they WOULD put their heads\r
-down! I am so VERY tired of being all alone here!'\r
-\r
- As she said this she looked down at her hands, and was\r
-surprised to see that she had put on one of the Rabbit's little\r
-white kid gloves while she was talking. `How CAN I have done\r
-that?' she thought. `I must be growing small again.' She got up\r
-and went to the table to measure herself by it, and found that,\r
-as nearly as she could guess, she was now about two feet high,\r
-and was going on shrinking rapidly: she soon found out that the\r
-cause of this was the fan she was holding, and she dropped it\r
-hastily, just in time to avoid shrinking away altogether.\r
-\r
-`That WAS a narrow escape!' said Alice, a good deal frightened at\r
-the sudden change, but very glad to find herself still in\r
-existence; `and now for the garden!' and she ran with all speed\r
-back to the little door: but, alas! the little door was shut\r
-again, and the little golden key was lying on the glass table as\r
-before, `and things are worse than ever,' thought the poor child,\r
-`for I never was so small as this before, never! And I declare\r
-it's too bad, that it is!'\r
-\r
- As she said these words her foot slipped, and in another\r
-moment, splash! she was up to her chin in salt water. He first\r
-idea was that she had somehow fallen into the sea, `and in that\r
-case I can go back by railway,' she said to herself. (Alice had\r
-been to the seaside once in her life, and had come to the general\r
-conclusion, that wherever you go to on the English coast you find\r
-a number of bathing machines in the sea, some children digging in\r
-the sand with wooden spades, then a row of lodging houses, and\r
-behind them a railway station.) However, she soon made out that\r
-she was in the pool of tears which she had wept when she was nine\r
-feet high.\r
-\r
- `I wish I hadn't cried so much!' said Alice, as she swam about,\r
-trying to find her way out. `I shall be punished for it now, I\r
-suppose, by being drowned in my own tears! That WILL be a queer\r
-thing, to be sure! However, everything is queer to-day.'\r
-\r
- Just then she heard something splashing about in the pool a\r
-little way off, and she swam nearer to make out what it was: at\r
-first she thought it must be a walrus or hippopotamus, but then\r
-she remembered how small she was now, and she soon made out that\r
-it was only a mouse that had slipped in like herself.\r
-\r
- `Would it be of any use, now,' thought Alice, `to speak to this\r
-mouse? Everything is so out-of-the-way down here, that I should\r
-think very likely it can talk: at any rate, there's no harm in\r
-trying.' So she began: `O Mouse, do you know the way out of\r
-this pool? I am very tired of swimming about here, O Mouse!'\r
-(Alice thought this must be the right way of speaking to a mouse:\r
-she had never done such a thing before, but she remembered having\r
-seen in her brother's Latin Grammar, `A mouse--of a mouse--to a\r
-mouse--a mouse--O mouse!' The Mouse looked at her rather\r
-inquisitively, and seemed to her to wink with one of its little\r
-eyes, but it said nothing.\r
-\r
- `Perhaps it doesn't understand English,' thought Alice; `I\r
-daresay it's a French mouse, come over with William the\r
-Conqueror.' (For, with all her knowledge of history, Alice had\r
-no very clear notion how long ago anything had happened.) So she\r
-began again: `Ou est ma chatte?' which was the first sentence in\r
-her French lesson-book. The Mouse gave a sudden leap out of the\r
-water, and seemed to quiver all over with fright. `Oh, I beg\r
-your pardon!' cried Alice hastily, afraid that she had hurt the\r
-poor animal's feelings. `I quite forgot you didn't like cats.'\r
-\r
- `Not like cats!' cried the Mouse, in a shrill, passionate\r
-voice. `Would YOU like cats if you were me?'\r
-\r
- `Well, perhaps not,' said Alice in a soothing tone: `don't be\r
-angry about it. And yet I wish I could show you our cat Dinah:\r
-I think you'd take a fancy to cats if you could only see her.\r
-She is such a dear quiet thing,' Alice went on, half to herself,\r
-as she swam lazily about in the pool, `and she sits purring so\r
-nicely by the fire, licking her paws and washing her face--and\r
-she is such a nice soft thing to nurse--and she's such a capital\r
-one for catching mice--oh, I beg your pardon!' cried Alice again,\r
-for this time the Mouse was bristling all over, and she felt\r
-certain it must be really offended. `We won't talk about her any\r
-more if you'd rather not.'\r
-\r
- `We indeed!' cried the Mouse, who was trembling down to the end\r
-of his tail. `As if I would talk on such a subject! Our family\r
-always HATED cats: nasty, low, vulgar things! Don't let me hear\r
-the name again!'\r
-\r
- `I won't indeed!' said Alice, in a great hurry to change the\r
-subject of conversation. `Are you--are you fond--of--of dogs?'\r
-The Mouse did not answer, so Alice went on eagerly: `There is\r
-such a nice little dog near our house I should like to show you!\r
-A little bright-eyed terrier, you know, with oh, such long curly\r
-brown hair! And it'll fetch things when you throw them, and\r
-it'll sit up and beg for its dinner, and all sorts of things--I\r
-can't remember half of them--and it belongs to a farmer, you\r
-know, and he says it's so useful, it's worth a hundred pounds!\r
-He says it kills all the rats and--oh dear!' cried Alice in a\r
-sorrowful tone, `I'm afraid I've offended it again!' For the\r
-Mouse was swimming away from her as hard as it could go, and\r
-making quite a commotion in the pool as it went.\r
-\r
- So she called softly after it, `Mouse dear! Do come back\r
-again, and we won't talk about cats or dogs either, if you don't\r
-like them!' When the Mouse heard this, it turned round and swam\r
-slowly back to her: its face was quite pale (with passion, Alice\r
-thought), and it said in a low trembling voice, `Let us get to\r
-the shore, and then I'll tell you my history, and you'll\r
-understand why it is I hate cats and dogs.'\r
-\r
- It was high time to go, for the pool was getting quite crowded\r
-with the birds and animals that had fallen into it: there were a\r
-Duck and a Dodo, a Lory and an Eaglet, and several other curious\r
-creatures. Alice led the way, and the whole party swam to the\r
-shore.\r
-\r
-\r
-\r
- CHAPTER III\r
-\r
- A Caucus-Race and a Long Tale\r
-\r
-\r
- They were indeed a queer-looking party that assembled on the\r
-bank--the birds with draggled feathers, the animals with their\r
-fur clinging close to them, and all dripping wet, cross, and\r
-uncomfortable.\r
-\r
- The first question of course was, how to get dry again: they\r
-had a consultation about this, and after a few minutes it seemed\r
-quite natural to Alice to find herself talking familiarly with\r
-them, as if she had known them all her life. Indeed, she had\r
-quite a long argument with the Lory, who at last turned sulky,\r
-and would only say, `I am older than you, and must know better';\r
-and this Alice would not allow without knowing how old it was,\r
-and, as the Lory positively refused to tell its age, there was no\r
-more to be said.\r
-\r
- At last the Mouse, who seemed to be a person of authority among\r
-them, called out, `Sit down, all of you, and listen to me! I'LL\r
-soon make you dry enough!' They all sat down at once, in a large\r
-ring, with the Mouse in the middle. Alice kept her eyes\r
-anxiously fixed on it, for she felt sure she would catch a bad\r
-cold if she did not get dry very soon.\r
-\r
- `Ahem!' said the Mouse with an important air, `are you all ready?\r
-This is the driest thing I know. Silence all round, if you please!\r
-"William the Conqueror, whose cause was favoured by the pope, was\r
-soon submitted to by the English, who wanted leaders, and had been\r
-of late much accustomed to usurpation and conquest. Edwin and\r
-Morcar, the earls of Mercia and Northumbria--"'\r
-\r
- `Ugh!' said the Lory, with a shiver.\r
-\r
- `I beg your pardon!' said the Mouse, frowning, but very\r
-politely: `Did you speak?'\r
-\r
- `Not I!' said the Lory hastily.\r
-\r
- `I thought you did,' said the Mouse. `--I proceed. "Edwin and\r
-Morcar, the earls of Mercia and Northumbria, declared for him:\r
-and even Stigand, the patriotic archbishop of Canterbury, found\r
-it advisable--"'\r
-\r
- `Found WHAT?' said the Duck.\r
-\r
- `Found IT,' the Mouse replied rather crossly: `of course you\r
-know what "it" means.'\r
-\r
- `I know what "it" means well enough, when I find a thing,' said\r
-the Duck: `it's generally a frog or a worm. The question is,\r
-what did the archbishop find?'\r
-\r
- The Mouse did not notice this question, but hurriedly went on,\r
-`"--found it advisable to go with Edgar Atheling to meet William\r
-and offer him the crown. William's conduct at first was\r
-moderate. But the insolence of his Normans--" How are you\r
-getting on now, my dear?' it continued, turning to Alice as it\r
-spoke.\r
-\r
- `As wet as ever,' said Alice in a melancholy tone: `it doesn't\r
-seem to dry me at all.'\r
-\r
- `In that case,' said the Dodo solemnly, rising to its feet, `I\r
-move that the meeting adjourn, for the immediate adoption of more\r
-energetic remedies--'\r
-\r
- `Speak English!' said the Eaglet. `I don't know the meaning of\r
-half those long words, and, what's more, I don't believe you do\r
-either!' And the Eaglet bent down its head to hide a smile:\r
-some of the other birds tittered audibly.\r
-\r
- `What I was going to say,' said the Dodo in an offended tone,\r
-`was, that the best thing to get us dry would be a Caucus-race.'\r
-\r
- `What IS a Caucus-race?' said Alice; not that she wanted much\r
-to know, but the Dodo had paused as if it thought that SOMEBODY\r
-ought to speak, and no one else seemed inclined to say anything.\r
-\r
- `Why,' said the Dodo, `the best way to explain it is to do it.'\r
-(And, as you might like to try the thing yourself, some winter\r
-day, I will tell you how the Dodo managed it.)\r
-\r
- First it marked out a race-course, in a sort of circle, (`the\r
-exact shape doesn't matter,' it said,) and then all the party\r
-were placed along the course, here and there. There was no `One,\r
-two, three, and away,' but they began running when they liked,\r
-and left off when they liked, so that it was not easy to know\r
-when the race was over. However, when they had been running half\r
-an hour or so, and were quite dry again, the Dodo suddenly called\r
-out `The race is over!' and they all crowded round it, panting,\r
-and asking, `But who has won?'\r
-\r
- This question the Dodo could not answer without a great deal of\r
-thought, and it sat for a long time with one finger pressed upon\r
-its forehead (the position in which you usually see Shakespeare,\r
-in the pictures of him), while the rest waited in silence. At\r
-last the Dodo said, `EVERYBODY has won, and all must have\r
-prizes.'\r
-\r
- `But who is to give the prizes?' quite a chorus of voices\r
-asked.\r
-\r
- `Why, SHE, of course,' said the Dodo, pointing to Alice with\r
-one finger; and the whole party at once crowded round her,\r
-calling out in a confused way, `Prizes! Prizes!'\r
-\r
- Alice had no idea what to do, and in despair she put her hand\r
-in her pocket, and pulled out a box of comfits, (luckily the salt\r
-water had not got into it), and handed them round as prizes.\r
-There was exactly one a-piece all round.\r
-\r
- `But she must have a prize herself, you know,' said the Mouse.\r
-\r
- `Of course,' the Dodo replied very gravely. `What else have\r
-you got in your pocket?' he went on, turning to Alice.\r
-\r
- `Only a thimble,' said Alice sadly.\r
-\r
- `Hand it over here,' said the Dodo.\r
-\r
- Then they all crowded round her once more, while the Dodo\r
-solemnly presented the thimble, saying `We beg your acceptance of\r
-this elegant thimble'; and, when it had finished this short\r
-speech, they all cheered.\r
-\r
- Alice thought the whole thing very absurd, but they all looked\r
-so grave that she did not dare to laugh; and, as she could not\r
-think of anything to say, she simply bowed, and took the thimble,\r
-looking as solemn as she could.\r
-\r
- The next thing was to eat the comfits: this caused some noise\r
-and confusion, as the large birds complained that they could not\r
-taste theirs, and the small ones choked and had to be patted on\r
-the back. However, it was over at last, and they sat down again\r
-in a ring, and begged the Mouse to tell them something more.\r
-\r
- `You promised to tell me your history, you know,' said Alice,\r
-`and why it is you hate--C and D,' she added in a whisper, half\r
-afraid that it would be offended again.\r
-\r
- `Mine is a long and a sad tale!' said the Mouse, turning to\r
-Alice, and sighing.\r
-\r
- `It IS a long tail, certainly,' said Alice, looking down with\r
-wonder at the Mouse's tail; `but why do you call it sad?' And\r
-she kept on puzzling about it while the Mouse was speaking, so\r
-that her idea of the tale was something like this:--\r
-\r
- `Fury said to a\r
- mouse, That he\r
- met in the\r
- house,\r
- "Let us\r
- both go to\r
- law: I will\r
- prosecute\r
- YOU. --Come,\r
- I'll take no\r
- denial; We\r
- must have a\r
- trial: For\r
- really this\r
- morning I've\r
- nothing\r
- to do."\r
- Said the\r
- mouse to the\r
- cur, "Such\r
- a trial,\r
- dear Sir,\r
- With\r
- no jury\r
- or judge,\r
- would be\r
- wasting\r
- our\r
- breath."\r
- "I'll be\r
- judge, I'll\r
- be jury,"\r
- Said\r
- cunning\r
- old Fury:\r
- "I'll\r
- try the\r
- whole\r
- cause,\r
- and\r
- condemn\r
- you\r
- to\r
- death."'\r
-\r
-\r
- `You are not attending!' said the Mouse to Alice severely.\r
-`What are you thinking of?'\r
-\r
- `I beg your pardon,' said Alice very humbly: `you had got to\r
-the fifth bend, I think?'\r
-\r
- `I had NOT!' cried the Mouse, sharply and very angrily.\r
-\r
- `A knot!' said Alice, always ready to make herself useful, and\r
-looking anxiously about her. `Oh, do let me help to undo it!'\r
-\r
- `I shall do nothing of the sort,' said the Mouse, getting up\r
-and walking away. `You insult me by talking such nonsense!'\r
-\r
- `I didn't mean it!' pleaded poor Alice. `But you're so easily\r
-offended, you know!'\r
-\r
- The Mouse only growled in reply.\r
-\r
- `Please come back and finish your story!' Alice called after\r
-it; and the others all joined in chorus, `Yes, please do!' but\r
-the Mouse only shook its head impatiently, and walked a little\r
-quicker.\r
-\r
- `What a pity it wouldn't stay!' sighed the Lory, as soon as it\r
-was quite out of sight; and an old Crab took the opportunity of\r
-saying to her daughter `Ah, my dear! Let this be a lesson to you\r
-never to lose YOUR temper!' `Hold your tongue, Ma!' said the\r
-young Crab, a little snappishly. `You're enough to try the\r
-patience of an oyster!'\r
-\r
- `I wish I had our Dinah here, I know I do!' said Alice aloud,\r
-addressing nobody in particular. `She'd soon fetch it back!'\r
-\r
- `And who is Dinah, if I might venture to ask the question?'\r
-said the Lory.\r
-\r
- Alice replied eagerly, for she was always ready to talk about\r
-her pet: `Dinah's our cat. And she's such a capital one for\r
-catching mice you can't think! And oh, I wish you could see her\r
-after the birds! Why, she'll eat a little bird as soon as look\r
-at it!'\r
-\r
- This speech caused a remarkable sensation among the party.\r
-Some of the birds hurried off at once: one the old Magpie began\r
-wrapping itself up very carefully, remarking, `I really must be\r
-getting home; the night-air doesn't suit my throat!' and a Canary\r
-called out in a trembling voice to its children, `Come away, my\r
-dears! It's high time you were all in bed!' On various pretexts\r
-they all moved off, and Alice was soon left alone.\r
-\r
- `I wish I hadn't mentioned Dinah!' she said to herself in a\r
-melancholy tone. `Nobody seems to like her, down here, and I'm\r
-sure she's the best cat in the world! Oh, my dear Dinah! I\r
-wonder if I shall ever see you any more!' And here poor Alice\r
-began to cry again, for she felt very lonely and low-spirited.\r
-In a little while, however, she again heard a little pattering of\r
-footsteps in the distance, and she looked up eagerly, half hoping\r
-that the Mouse had changed his mind, and was coming back to\r
-finish his story.\r
-\r
-\r
-\r
- CHAPTER IV\r
-\r
- The Rabbit Sends in a Little Bill\r
-\r
-\r
- It was the White Rabbit, trotting slowly back again, and\r
-looking anxiously about as it went, as if it had lost something;\r
-and she heard it muttering to itself `The Duchess! The Duchess!\r
-Oh my dear paws! Oh my fur and whiskers! She'll get me\r
-executed, as sure as ferrets are ferrets! Where CAN I have\r
-dropped them, I wonder?' Alice guessed in a moment that it was\r
-looking for the fan and the pair of white kid gloves, and she\r
-very good-naturedly began hunting about for them, but they were\r
-nowhere to be seen--everything seemed to have changed since her\r
-swim in the pool, and the great hall, with the glass table and\r
-the little door, had vanished completely.\r
-\r
- Very soon the Rabbit noticed Alice, as she went hunting about,\r
-and called out to her in an angry tone, `Why, Mary Ann, what ARE\r
-you doing out here? Run home this moment, and fetch me a pair of\r
-gloves and a fan! Quick, now!' And Alice was so much frightened\r
-that she ran off at once in the direction it pointed to, without\r
-trying to explain the mistake it had made.\r
-\r
- `He took me for his housemaid,' she said to herself as she ran.\r
-`How surprised he'll be when he finds out who I am! But I'd\r
-better take him his fan and gloves--that is, if I can find them.'\r
-As she said this, she came upon a neat little house, on the door\r
-of which was a bright brass plate with the name `W. RABBIT'\r
-engraved upon it. She went in without knocking, and hurried\r
-upstairs, in great fear lest she should meet the real Mary Ann,\r
-and be turned out of the house before she had found the fan and\r
-gloves.\r
-\r
- `How queer it seems,' Alice said to herself, `to be going\r
-messages for a rabbit! I suppose Dinah'll be sending me on\r
-messages next!' And she began fancying the sort of thing that\r
-would happen: `"Miss Alice! Come here directly, and get ready\r
-for your walk!" "Coming in a minute, nurse! But I've got to see\r
-that the mouse doesn't get out." Only I don't think,' Alice went\r
-on, `that they'd let Dinah stop in the house if it began ordering\r
-people about like that!'\r
-\r
- By this time she had found her way into a tidy little room with\r
-a table in the window, and on it (as she had hoped) a fan and two\r
-or three pairs of tiny white kid gloves: she took up the fan and\r
-a pair of the gloves, and was just going to leave the room, when\r
-her eye fell upon a little bottle that stood near the looking-\r
-glass. There was no label this time with the words `DRINK ME,'\r
-but nevertheless she uncorked it and put it to her lips. `I know\r
-SOMETHING interesting is sure to happen,' she said to herself,\r
-`whenever I eat or drink anything; so I'll just see what this\r
-bottle does. I do hope it'll make me grow large again, for\r
-really I'm quite tired of being such a tiny little thing!'\r
-\r
- It did so indeed, and much sooner than she had expected:\r
-before she had drunk half the bottle, she found her head pressing\r
-against the ceiling, and had to stoop to save her neck from being\r
-broken. She hastily put down the bottle, saying to herself\r
-`That's quite enough--I hope I shan't grow any more--As it is, I\r
-can't get out at the door--I do wish I hadn't drunk quite so\r
-much!'\r
-\r
- Alas! it was too late to wish that! She went on growing, and\r
-growing, and very soon had to kneel down on the floor: in\r
-another minute there was not even room for this, and she tried\r
-the effect of lying down with one elbow against the door, and the\r
-other arm curled round her head. Still she went on growing, and,\r
-as a last resource, she put one arm out of the window, and one\r
-foot up the chimney, and said to herself `Now I can do no more,\r
-whatever happens. What WILL become of me?'\r
-\r
- Luckily for Alice, the little magic bottle had now had its full\r
-effect, and she grew no larger: still it was very uncomfortable,\r
-and, as there seemed to be no sort of chance of her ever getting\r
-out of the room again, no wonder she felt unhappy.\r
-\r
- `It was much pleasanter at home,' thought poor Alice, `when one\r
-wasn't always growing larger and smaller, and being ordered about\r
-by mice and rabbits. I almost wish I hadn't gone down that\r
-rabbit-hole--and yet--and yet--it's rather curious, you know,\r
-this sort of life! I do wonder what CAN have happened to me!\r
-When I used to read fairy-tales, I fancied that kind of thing\r
-never happened, and now here I am in the middle of one! There\r
-ought to be a book written about me, that there ought! And when\r
-I grow up, I'll write one--but I'm grown up now,' she added in a\r
-sorrowful tone; `at least there's no room to grow up any more\r
-HERE.'\r
-\r
- `But then,' thought Alice, `shall I NEVER get any older than I\r
-am now? That'll be a comfort, one way--never to be an old woman-\r
--but then--always to have lessons to learn! Oh, I shouldn't like\r
-THAT!'\r
-\r
- `Oh, you foolish Alice!' she answered herself. `How can you\r
-learn lessons in here? Why, there's hardly room for YOU, and no\r
-room at all for any lesson-books!'\r
-\r
- And so she went on, taking first one side and then the other,\r
-and making quite a conversation of it altogether; but after a few\r
-minutes she heard a voice outside, and stopped to listen.\r
-\r
- `Mary Ann! Mary Ann!' said the voice. `Fetch me my gloves\r
-this moment!' Then came a little pattering of feet on the\r
-stairs. Alice knew it was the Rabbit coming to look for her, and\r
-she trembled till she shook the house, quite forgetting that she\r
-was now about a thousand times as large as the Rabbit, and had no\r
-reason to be afraid of it.\r
-\r
- Presently the Rabbit came up to the door, and tried to open it;\r
-but, as the door opened inwards, and Alice's elbow was pressed\r
-hard against it, that attempt proved a failure. Alice heard it\r
-say to itself `Then I'll go round and get in at the window.'\r
-\r
- `THAT you won't' thought Alice, and, after waiting till she\r
-fancied she heard the Rabbit just under the window, she suddenly\r
-spread out her hand, and made a snatch in the air. She did not\r
-get hold of anything, but she heard a little shriek and a fall,\r
-and a crash of broken glass, from which she concluded that it was\r
-just possible it had fallen into a cucumber-frame, or something\r
-of the sort.\r
-\r
- Next came an angry voice--the Rabbit's--`Pat! Pat! Where are\r
-you?' And then a voice she had never heard before, `Sure then\r
-I'm here! Digging for apples, yer honour!'\r
-\r
- `Digging for apples, indeed!' said the Rabbit angrily. `Here!\r
-Come and help me out of THIS!' (Sounds of more broken glass.)\r
-\r
- `Now tell me, Pat, what's that in the window?'\r
-\r
- `Sure, it's an arm, yer honour!' (He pronounced it `arrum.')\r
-\r
- `An arm, you goose! Who ever saw one that size? Why, it\r
-fills the whole window!'\r
-\r
- `Sure, it does, yer honour: but it's an arm for all that.'\r
-\r
- `Well, it's got no business there, at any rate: go and take it\r
-away!'\r
-\r
- There was a long silence after this, and Alice could only hear\r
-whispers now and then; such as, `Sure, I don't like it, yer\r
-honour, at all, at all!' `Do as I tell you, you coward!' and at\r
-last she spread out her hand again, and made another snatch in\r
-the air. This time there were TWO little shrieks, and more\r
-sounds of broken glass. `What a number of cucumber-frames there\r
-must be!' thought Alice. `I wonder what they'll do next! As for\r
-pulling me out of the window, I only wish they COULD! I'm sure I\r
-don't want to stay in here any longer!'\r
-\r
- She waited for some time without hearing anything more: at\r
-last came a rumbling of little cartwheels, and the sound of a\r
-good many voice all talking together: she made out the words:\r
-`Where's the other ladder?--Why, I hadn't to bring but one;\r
-Bill's got the other--Bill! fetch it here, lad!--Here, put 'em up\r
-at this corner--No, tie 'em together first--they don't reach half\r
-high enough yet--Oh! they'll do well enough; don't be particular-\r
--Here, Bill! catch hold of this rope--Will the roof bear?--Mind\r
-that loose slate--Oh, it's coming down! Heads below!' (a loud\r
-crash)--`Now, who did that?--It was Bill, I fancy--Who's to go\r
-down the chimney?--Nay, I shan't! YOU do it!--That I won't,\r
-then!--Bill's to go down--Here, Bill! the master says you're to\r
-go down the chimney!'\r
-\r
- `Oh! So Bill's got to come down the chimney, has he?' said\r
-Alice to herself. `Shy, they seem to put everything upon Bill!\r
-I wouldn't be in Bill's place for a good deal: this fireplace is\r
-narrow, to be sure; but I THINK I can kick a little!'\r
-\r
- She drew her foot as far down the chimney as she could, and\r
-waited till she heard a little animal (she couldn't guess of what\r
-sort it was) scratching and scrambling about in the chimney close\r
-above her: then, saying to herself `This is Bill,' she gave one\r
-sharp kick, and waited to see what would happen next.\r
-\r
- The first thing she heard was a general chorus of `There goes\r
-Bill!' then the Rabbit's voice along--`Catch him, you by the\r
-hedge!' then silence, and then another confusion of voices--`Hold\r
-up his head--Brandy now--Don't choke him--How was it, old fellow?\r
-What happened to you? Tell us all about it!'\r
-\r
- Last came a little feeble, squeaking voice, (`That's Bill,'\r
-thought Alice,) `Well, I hardly know--No more, thank ye; I'm\r
-better now--but I'm a deal too flustered to tell you--all I know\r
-is, something comes at me like a Jack-in-the-box, and up I goes\r
-like a sky-rocket!'\r
-\r
- `So you did, old fellow!' said the others.\r
-\r
- `We must burn the house down!' said the Rabbit's voice; and\r
-Alice called out as loud as she could, `If you do. I'll set\r
-Dinah at you!'\r
-\r
- There was a dead silence instantly, and Alice thought to\r
-herself, `I wonder what they WILL do next! If they had any\r
-sense, they'd take the roof off.' After a minute or two, they\r
-began moving about again, and Alice heard the Rabbit say, `A\r
-barrowful will do, to begin with.'\r
-\r
- `A barrowful of WHAT?' thought Alice; but she had not long to\r
-doubt, for the next moment a shower of little pebbles came\r
-rattling in at the window, and some of them hit her in the face.\r
-`I'll put a stop to this,' she said to herself, and shouted out,\r
-`You'd better not do that again!' which produced another dead\r
-silence.\r
-\r
- Alice noticed with some surprise that the pebbles were all\r
-turning into little cakes as they lay on the floor, and a bright\r
-idea came into her head. `If I eat one of these cakes,' she\r
-thought, `it's sure to make SOME change in my size; and as it\r
-can't possibly make me larger, it must make me smaller, I\r
-suppose.'\r
-\r
- So she swallowed one of the cakes, and was delighted to find\r
-that she began shrinking directly. As soon as she was small\r
-enough to get through the door, she ran out of the house, and\r
-found quite a crowd of little animals and birds waiting outside.\r
-The poor little Lizard, Bill, was in the middle, being held up by\r
-two guinea-pigs, who were giving it something out of a bottle.\r
-They all made a rush at Alice the moment she appeared; but she\r
-ran off as hard as she could, and soon found herself safe in a\r
-thick wood.\r
-\r
- `The first thing I've got to do,' said Alice to herself, as she\r
-wandered about in the wood, `is to grow to my right size again;\r
-and the second thing is to find my way into that lovely garden.\r
-I think that will be the best plan.'\r
-\r
- It sounded an excellent plan, no doubt, and very neatly and\r
-simply arranged; the only difficulty was, that she had not the\r
-smallest idea how to set about it; and while she was peering\r
-about anxiously among the trees, a little sharp bark just over\r
-her head made her look up in a great hurry.\r
-\r
- An enormous puppy was looking down at her with large round\r
-eyes, and feebly stretching out one paw, trying to touch her.\r
-`Poor little thing!' said Alice, in a coaxing tone, and she tried\r
-hard to whistle to it; but she was terribly frightened all the\r
-time at the thought that it might be hungry, in which case it\r
-would be very likely to eat her up in spite of all her coaxing.\r
-\r
- Hardly knowing what she did, she picked up a little bit of\r
-stick, and held it out to the puppy; whereupon the puppy jumped\r
-into the air off all its feet at once, with a yelp of delight,\r
-and rushed at the stick, and made believe to worry it; then Alice\r
-dodged behind a great thistle, to keep herself from being run\r
-over; and the moment she appeared on the other side, the puppy\r
-made another rush at the stick, and tumbled head over heels in\r
-its hurry to get hold of it; then Alice, thinking it was very\r
-like having a game of play with a cart-horse, and expecting every\r
-moment to be trampled under its feet, ran round the thistle\r
-again; then the puppy began a series of short charges at the\r
-stick, running a very little way forwards each time and a long\r
-way back, and barking hoarsely all the while, till at last it sat\r
-down a good way off, panting, with its tongue hanging out of its\r
-mouth, and its great eyes half shut.\r
-\r
- This seemed to Alice a good opportunity for making her escape;\r
-so she set off at once, and ran till she was quite tired and out\r
-of breath, and till the puppy's bark sounded quite faint in the\r
-distance.\r
-\r
- `And yet what a dear little puppy it was!' said Alice, as she\r
-leant against a buttercup to rest herself, and fanned herself\r
-with one of the leaves: `I should have liked teaching it tricks\r
-very much, if--if I'd only been the right size to do it! Oh\r
-dear! I'd nearly forgotten that I've got to grow up again! Let\r
-me see--how IS it to be managed? I suppose I ought to eat or\r
-drink something or other; but the great question is, what?'\r
-\r
- The great question certainly was, what? Alice looked all round\r
-her at the flowers and the blades of grass, but she did not see\r
-anything that looked like the right thing to eat or drink under\r
-the circumstances. There was a large mushroom growing near her,\r
-about the same height as herself; and when she had looked under\r
-it, and on both sides of it, and behind it, it occurred to her\r
-that she might as well look and see what was on the top of it.\r
-\r
- She stretched herself up on tiptoe, and peeped over the edge of\r
-the mushroom, and her eyes immediately met those of a large\r
-caterpillar, that was sitting on the top with its arms folded,\r
-quietly smoking a long hookah, and taking not the smallest notice\r
-of her or of anything else.\r
-\r
-\r
-\r
- CHAPTER V\r
-\r
- Advice from a Caterpillar\r
-\r
-\r
- The Caterpillar and Alice looked at each other for some time in\r
-silence: at last the Caterpillar took the hookah out of its\r
-mouth, and addressed her in a languid, sleepy voice.\r
-\r
- `Who are YOU?' said the Caterpillar.\r
-\r
- This was not an encouraging opening for a conversation. Alice\r
-replied, rather shyly, `I--I hardly know, sir, just at present--\r
-at least I know who I WAS when I got up this morning, but I think\r
-I must have been changed several times since then.'\r
-\r
- `What do you mean by that?' said the Caterpillar sternly.\r
-`Explain yourself!'\r
-\r
- `I can't explain MYSELF, I'm afraid, sir' said Alice, `because\r
-I'm not myself, you see.'\r
-\r
- `I don't see,' said the Caterpillar.\r
-\r
- `I'm afraid I can't put it more clearly,' Alice replied very\r
-politely, `for I can't understand it myself to begin with; and\r
-being so many different sizes in a day is very confusing.'\r
-\r
- `It isn't,' said the Caterpillar.\r
-\r
- `Well, perhaps you haven't found it so yet,' said Alice; `but\r
-when you have to turn into a chrysalis--you will some day, you\r
-know--and then after that into a butterfly, I should think you'll\r
-feel it a little queer, won't you?'\r
-\r
- `Not a bit,' said the Caterpillar.\r
-\r
- `Well, perhaps your feelings may be different,' said Alice;\r
-`all I know is, it would feel very queer to ME.'\r
-\r
- `You!' said the Caterpillar contemptuously. `Who are YOU?'\r
-\r
- Which brought them back again to the beginning of the\r
-conversation. Alice felt a little irritated at the Caterpillar's\r
-making such VERY short remarks, and she drew herself up and said,\r
-very gravely, `I think, you ought to tell me who YOU are, first.'\r
-\r
- `Why?' said the Caterpillar.\r
-\r
- Here was another puzzling question; and as Alice could not\r
-think of any good reason, and as the Caterpillar seemed to be in\r
-a VERY unpleasant state of mind, she turned away.\r
-\r
- `Come back!' the Caterpillar called after her. `I've something\r
-important to say!'\r
-\r
- This sounded promising, certainly: Alice turned and came back\r
-again.\r
-\r
- `Keep your temper,' said the Caterpillar.\r
-\r
- `Is that all?' said Alice, swallowing down her anger as well as\r
-she could.\r
-\r
- `No,' said the Caterpillar.\r
-\r
- Alice thought she might as well wait, as she had nothing else\r
-to do, and perhaps after all it might tell her something worth\r
-hearing. For some minutes it puffed away without speaking, but\r
-at last it unfolded its arms, took the hookah out of its mouth\r
-again, and said, `So you think you're changed, do you?'\r
-\r
- `I'm afraid I am, sir,' said Alice; `I can't remember things as\r
-I used--and I don't keep the same size for ten minutes together!'\r
-\r
- `Can't remember WHAT things?' said the Caterpillar.\r
-\r
- `Well, I've tried to say "HOW DOTH THE LITTLE BUSY BEE," but it\r
-all came different!' Alice replied in a very melancholy voice.\r
-\r
- `Repeat, "YOU ARE OLD, FATHER WILLIAM,"' said the Caterpillar.\r
-\r
- Alice folded her hands, and began:--\r
-\r
- `You are old, Father William,' the young man said,\r
- `And your hair has become very white;\r
- And yet you incessantly stand on your head--\r
- Do you think, at your age, it is right?'\r
-\r
- `In my youth,' Father William replied to his son,\r
- `I feared it might injure the brain;\r
- But, now that I'm perfectly sure I have none,\r
- Why, I do it again and again.'\r
-\r
- `You are old,' said the youth, `as I mentioned before,\r
- And have grown most uncommonly fat;\r
- Yet you turned a back-somersault in at the door--\r
- Pray, what is the reason of that?'\r
-\r
- `In my youth,' said the sage, as he shook his grey locks,\r
- `I kept all my limbs very supple\r
- By the use of this ointment--one shilling the box--\r
- Allow me to sell you a couple?'\r
-\r
- `You are old,' said the youth, `and your jaws are too weak\r
- For anything tougher than suet;\r
- Yet you finished the goose, with the bones and the beak--\r
- Pray how did you manage to do it?'\r
-\r
- `In my youth,' said his father, `I took to the law,\r
- And argued each case with my wife;\r
- And the muscular strength, which it gave to my jaw,\r
- Has lasted the rest of my life.'\r
-\r
- `You are old,' said the youth, `one would hardly suppose\r
- That your eye was as steady as ever;\r
- Yet you balanced an eel on the end of your nose--\r
- What made you so awfully clever?'\r
-\r
- `I have answered three questions, and that is enough,'\r
- Said his father; `don't give yourself airs!\r
- Do you think I can listen all day to such stuff?\r
- Be off, or I'll kick you down stairs!'\r
-\r
-\r
- `That is not said right,' said the Caterpillar.\r
-\r
- `Not QUITE right, I'm afraid,' said Alice, timidly; `some of the\r
-words have got altered.'\r
-\r
- `It is wrong from beginning to end,' said the Caterpillar\r
-decidedly, and there was silence for some minutes.\r
-\r
- The Caterpillar was the first to speak.\r
-\r
- `What size do you want to be?' it asked.\r
-\r
- `Oh, I'm not particular as to size,' Alice hastily replied;\r
-`only one doesn't like changing so often, you know.'\r
-\r
- `I DON'T know,' said the Caterpillar.\r
-\r
- Alice said nothing: she had never been so much contradicted in\r
-her life before, and she felt that she was losing her temper.\r
-\r
- `Are you content now?' said the Caterpillar.\r
-\r
- `Well, I should like to be a LITTLE larger, sir, if you\r
-wouldn't mind,' said Alice: `three inches is such a wretched\r
-height to be.'\r
-\r
- `It is a very good height indeed!' said the Caterpillar\r
-angrily, rearing itself upright as it spoke (it was exactly three\r
-inches high).\r
-\r
- `But I'm not used to it!' pleaded poor Alice in a piteous tone.\r
-And she thought of herself, `I wish the creatures wouldn't be so\r
-easily offended!'\r
-\r
- `You'll get used to it in time,' said the Caterpillar; and it\r
-put the hookah into its mouth and began smoking again.\r
-\r
- This time Alice waited patiently until it chose to speak again.\r
-In a minute or two the Caterpillar took the hookah out of its\r
-mouth and yawned once or twice, and shook itself. Then it got\r
-down off the mushroom, and crawled away in the grass, merely\r
-remarking as it went, `One side will make you grow taller, and\r
-the other side will make you grow shorter.'\r
-\r
- `One side of WHAT? The other side of WHAT?' thought Alice to\r
-herself.\r
-\r
- `Of the mushroom,' said the Caterpillar, just as if she had\r
-asked it aloud; and in another moment it was out of sight.\r
-\r
- Alice remained looking thoughtfully at the mushroom for a\r
-minute, trying to make out which were the two sides of it; and as\r
-it was perfectly round, she found this a very difficult question.\r
-However, at last she stretched her arms round it as far as they\r
-would go, and broke off a bit of the edge with each hand.\r
-\r
- `And now which is which?' she said to herself, and nibbled a\r
-little of the right-hand bit to try the effect: the next moment\r
-she felt a violent blow underneath her chin: it had struck her\r
-foot!\r
-\r
- She was a good deal frightened by this very sudden change, but\r
-she felt that there was no time to be lost, as she was shrinking\r
-rapidly; so she set to work at once to eat some of the other bit.\r
-Her chin was pressed so closely against her foot, that there was\r
-hardly room to open her mouth; but she did it at last, and\r
-managed to swallow a morsel of the lefthand bit.\r
-\r
-\r
- * * * * * * *\r
-\r
- * * * * * *\r
-\r
- * * * * * * *\r
-\r
- `Come, my head's free at last!' said Alice in a tone of\r
-delight, which changed into alarm in another moment, when she\r
-found that her shoulders were nowhere to be found: all she could\r
-see, when she looked down, was an immense length of neck, which\r
-seemed to rise like a stalk out of a sea of green leaves that lay\r
-far below her.\r
-\r
- `What CAN all that green stuff be?' said Alice. `And where\r
-HAVE my shoulders got to? And oh, my poor hands, how is it I\r
-can't see you?' She was moving them about as she spoke, but no\r
-result seemed to follow, except a little shaking among the\r
-distant green leaves.\r
-\r
- As there seemed to be no chance of getting her hands up to her\r
-head, she tried to get her head down to them, and was delighted\r
-to find that her neck would bend about easily in any direction,\r
-like a serpent. She had just succeeded in curving it down into a\r
-graceful zigzag, and was going to dive in among the leaves, which\r
-she found to be nothing but the tops of the trees under which she\r
-had been wandering, when a sharp hiss made her draw back in a\r
-hurry: a large pigeon had flown into her face, and was beating\r
-her violently with its wings.\r
-\r
- `Serpent!' screamed the Pigeon.\r
-\r
- `I'm NOT a serpent!' said Alice indignantly. `Let me alone!'\r
-\r
- `Serpent, I say again!' repeated the Pigeon, but in a more\r
-subdued tone, and added with a kind of sob, `I've tried every\r
-way, and nothing seems to suit them!'\r
-\r
- `I haven't the least idea what you're talking about,' said\r
-Alice.\r
-\r
- `I've tried the roots of trees, and I've tried banks, and I've\r
-tried hedges,' the Pigeon went on, without attending to her; `but\r
-those serpents! There's no pleasing them!'\r
-\r
- Alice was more and more puzzled, but she thought there was no\r
-use in saying anything more till the Pigeon had finished.\r
-\r
- `As if it wasn't trouble enough hatching the eggs,' said the\r
-Pigeon; `but I must be on the look-out for serpents night and\r
-day! Why, I haven't had a wink of sleep these three weeks!'\r
-\r
- `I'm very sorry you've been annoyed,' said Alice, who was\r
-beginning to see its meaning.\r
-\r
- `And just as I'd taken the highest tree in the wood,' continued\r
-the Pigeon, raising its voice to a shriek, `and just as I was\r
-thinking I should be free of them at last, they must needs come\r
-wriggling down from the sky! Ugh, Serpent!'\r
-\r
- `But I'm NOT a serpent, I tell you!' said Alice. `I'm a--I'm\r
-a--'\r
-\r
- `Well! WHAT are you?' said the Pigeon. `I can see you're\r
-trying to invent something!'\r
-\r
- `I--I'm a little girl,' said Alice, rather doubtfully, as she\r
-remembered the number of changes she had gone through that day.\r
-\r
- `A likely story indeed!' said the Pigeon in a tone of the\r
-deepest contempt. `I've seen a good many little girls in my\r
-time, but never ONE with such a neck as that! No, no! You're a\r
-serpent; and there's no use denying it. I suppose you'll be\r
-telling me next that you never tasted an egg!'\r
-\r
- `I HAVE tasted eggs, certainly,' said Alice, who was a very\r
-truthful child; `but little girls eat eggs quite as much as\r
-serpents do, you know.'\r
-\r
- `I don't believe it,' said the Pigeon; `but if they do, why\r
-then they're a kind of serpent, that's all I can say.'\r
-\r
- This was such a new idea to Alice, that she was quite silent\r
-for a minute or two, which gave the Pigeon the opportunity of\r
-adding, `You're looking for eggs, I know THAT well enough; and\r
-what does it matter to me whether you're a little girl or a\r
-serpent?'\r
-\r
- `It matters a good deal to ME,' said Alice hastily; `but I'm\r
-not looking for eggs, as it happens; and if I was, I shouldn't\r
-want YOURS: I don't like them raw.'\r
-\r
- `Well, be off, then!' said the Pigeon in a sulky tone, as it\r
-settled down again into its nest. Alice crouched down among the\r
-trees as well as she could, for her neck kept getting entangled\r
-among the branches, and every now and then she had to stop and\r
-untwist it. After a while she remembered that she still held the\r
-pieces of mushroom in her hands, and she set to work very\r
-carefully, nibbling first at one and then at the other, and\r
-growing sometimes taller and sometimes shorter, until she had\r
-succeeded in bringing herself down to her usual height.\r
-\r
- It was so long since she had been anything near the right size,\r
-that it felt quite strange at first; but she got used to it in a\r
-few minutes, and began talking to herself, as usual. `Come,\r
-there's half my plan done now! How puzzling all these changes\r
-are! I'm never sure what I'm going to be, from one minute to\r
-another! However, I've got back to my right size: the next\r
-thing is, to get into that beautiful garden--how IS that to be\r
-done, I wonder?' As she said this, she came suddenly upon an\r
-open place, with a little house in it about four feet high.\r
-`Whoever lives there,' thought Alice, `it'll never do to come\r
-upon them THIS size: why, I should frighten them out of their\r
-wits!' So she began nibbling at the righthand bit again, and did\r
-not venture to go near the house till she had brought herself\r
-down to nine inches high.\r
-\r
-\r
-\r
- CHAPTER VI\r
-\r
- Pig and Pepper\r
-\r
-\r
- For a minute or two she stood looking at the house, and\r
-wondering what to do next, when suddenly a footman in livery came\r
-running out of the wood--(she considered him to be a footman\r
-because he was in livery: otherwise, judging by his face only,\r
-she would have called him a fish)--and rapped loudly at the door\r
-with his knuckles. It was opened by another footman in livery,\r
-with a round face, and large eyes like a frog; and both footmen,\r
-Alice noticed, had powdered hair that curled all over their\r
-heads. She felt very curious to know what it was all about, and\r
-crept a little way out of the wood to listen.\r
-\r
- The Fish-Footman began by producing from under his arm a great\r
-letter, nearly as large as himself, and this he handed over to\r
-the other, saying, in a solemn tone, `For the Duchess. An\r
-invitation from the Queen to play croquet.' The Frog-Footman\r
-repeated, in the same solemn tone, only changing the order of the\r
-words a little, `From the Queen. An invitation for the Duchess\r
-to play croquet.'\r
-\r
- Then they both bowed low, and their curls got entangled\r
-together.\r
-\r
- Alice laughed so much at this, that she had to run back into\r
-the wood for fear of their hearing her; and when she next peeped\r
-out the Fish-Footman was gone, and the other was sitting on the\r
-ground near the door, staring stupidly up into the sky.\r
-\r
- Alice went timidly up to the door, and knocked.\r
-\r
- `There's no sort of use in knocking,' said the Footman, `and\r
-that for two reasons. First, because I'm on the same side of the\r
-door as you are; secondly, because they're making such a noise\r
-inside, no one could possibly hear you.' And certainly there was\r
-a most extraordinary noise going on within--a constant howling\r
-and sneezing, and every now and then a great crash, as if a dish\r
-or kettle had been broken to pieces.\r
-\r
- `Please, then,' said Alice, `how am I to get in?'\r
-\r
- `There might be some sense in your knocking,' the Footman went\r
-on without attending to her, `if we had the door between us. For\r
-instance, if you were INSIDE, you might knock, and I could let\r
-you out, you know.' He was looking up into the sky all the time\r
-he was speaking, and this Alice thought decidedly uncivil. `But\r
-perhaps he can't help it,' she said to herself; `his eyes are so\r
-VERY nearly at the top of his head. But at any rate he might\r
-answer questions.--How am I to get in?' she repeated, aloud.\r
-\r
- `I shall sit here,' the Footman remarked, `till tomorrow--'\r
-\r
- At this moment the door of the house opened, and a large plate\r
-came skimming out, straight at the Footman's head: it just\r
-grazed his nose, and broke to pieces against one of the trees\r
-behind him.\r
-\r
- `--or next day, maybe,' the Footman continued in the same tone,\r
-exactly as if nothing had happened.\r
-\r
- `How am I to get in?' asked Alice again, in a louder tone.\r
-\r
- `ARE you to get in at all?' said the Footman. `That's the\r
-first question, you know.'\r
-\r
- It was, no doubt: only Alice did not like to be told so.\r
-`It's really dreadful,' she muttered to herself, `the way all the\r
-creatures argue. It's enough to drive one crazy!'\r
-\r
- The Footman seemed to think this a good opportunity for\r
-repeating his remark, with variations. `I shall sit here,' he\r
-said, `on and off, for days and days.'\r
-\r
- `But what am I to do?' said Alice.\r
-\r
- `Anything you like,' said the Footman, and began whistling.\r
-\r
- `Oh, there's no use in talking to him,' said Alice desperately:\r
-`he's perfectly idiotic!' And she opened the door and went in.\r
-\r
- The door led right into a large kitchen, which was full of\r
-smoke from one end to the other: the Duchess was sitting on a\r
-three-legged stool in the middle, nursing a baby; the cook was\r
-leaning over the fire, stirring a large cauldron which seemed to\r
-be full of soup.\r
-\r
- `There's certainly too much pepper in that soup!' Alice said to\r
-herself, as well as she could for sneezing.\r
-\r
- There was certainly too much of it in the air. Even the\r
-Duchess sneezed occasionally; and as for the baby, it was\r
-sneezing and howling alternately without a moment's pause. The\r
-only things in the kitchen that did not sneeze, were the cook,\r
-and a large cat which was sitting on the hearth and grinning from\r
-ear to ear.\r
-\r
- `Please would you tell me,' said Alice, a little timidly, for\r
-she was not quite sure whether it was good manners for her to\r
-speak first, `why your cat grins like that?'\r
-\r
- `It's a Cheshire cat,' said the Duchess, `and that's why.\r
-Pig!'\r
-\r
- She said the last word with such sudden violence that Alice\r
-quite jumped; but she saw in another moment that it was addressed\r
-to the baby, and not to her, so she took courage, and went on\r
-again:--\r
-\r
- `I didn't know that Cheshire cats always grinned; in fact, I\r
-didn't know that cats COULD grin.'\r
-\r
- `They all can,' said the Duchess; `and most of 'em do.'\r
-\r
- `I don't know of any that do,' Alice said very politely,\r
-feeling quite pleased to have got into a conversation.\r
-\r
- `You don't know much,' said the Duchess; `and that's a fact.'\r
-\r
- Alice did not at all like the tone of this remark, and thought\r
-it would be as well to introduce some other subject of\r
-conversation. While she was trying to fix on one, the cook took\r
-the cauldron of soup off the fire, and at once set to work\r
-throwing everything within her reach at the Duchess and the baby\r
---the fire-irons came first; then followed a shower of saucepans,\r
-plates, and dishes. The Duchess took no notice of them even when\r
-they hit her; and the baby was howling so much already, that it\r
-was quite impossible to say whether the blows hurt it or not.\r
-\r
- `Oh, PLEASE mind what you're doing!' cried Alice, jumping up\r
-and down in an agony of terror. `Oh, there goes his PRECIOUS\r
-nose'; as an unusually large saucepan flew close by it, and very\r
-nearly carried it off.\r
-\r
- `If everybody minded their own business,' the Duchess said in a\r
-hoarse growl, `the world would go round a deal faster than it\r
-does.'\r
-\r
- `Which would NOT be an advantage,' said Alice, who felt very\r
-glad to get an opportunity of showing off a little of her\r
-knowledge. `Just think of what work it would make with the day\r
-and night! You see the earth takes twenty-four hours to turn\r
-round on its axis--'\r
-\r
- `Talking of axes,' said the Duchess, `chop off her head!'\r
-\r
- Alice glanced rather anxiously at the cook, to see if she meant\r
-to take the hint; but the cook was busily stirring the soup, and\r
-seemed not to be listening, so she went on again: `Twenty-four\r
-hours, I THINK; or is it twelve? I--'\r
-\r
- `Oh, don't bother ME,' said the Duchess; `I never could abide\r
-figures!' And with that she began nursing her child again,\r
-singing a sort of lullaby to it as she did so, and giving it a\r
-violent shake at the end of every line:\r
-\r
- `Speak roughly to your little boy,\r
- And beat him when he sneezes:\r
- He only does it to annoy,\r
- Because he knows it teases.'\r
-\r
- CHORUS.\r
-\r
- (In which the cook and the baby joined):--\r
-\r
- `Wow! wow! wow!'\r
-\r
- While the Duchess sang the second verse of the song, she kept\r
-tossing the baby violently up and down, and the poor little thing\r
-howled so, that Alice could hardly hear the words:--\r
-\r
- `I speak severely to my boy,\r
- I beat him when he sneezes;\r
- For he can thoroughly enjoy\r
- The pepper when he pleases!'\r
-\r
- CHORUS.\r
-\r
- `Wow! wow! wow!'\r
-\r
- `Here! you may nurse it a bit, if you like!' the Duchess said\r
-to Alice, flinging the baby at her as she spoke. `I must go and\r
-get ready to play croquet with the Queen,' and she hurried out of\r
-the room. The cook threw a frying-pan after her as she went out,\r
-but it just missed her.\r
-\r
- Alice caught the baby with some difficulty, as it was a queer-\r
-shaped little creature, and held out its arms and legs in all\r
-directions, `just like a star-fish,' thought Alice. The poor\r
-little thing was snorting like a steam-engine when she caught it,\r
-and kept doubling itself up and straightening itself out again,\r
-so that altogether, for the first minute or two, it was as much\r
-as she could do to hold it.\r
-\r
- As soon as she had made out the proper way of nursing it,\r
-(which was to twist it up into a sort of knot, and then keep\r
-tight hold of its right ear and left foot, so as to prevent its\r
-undoing itself,) she carried it out into the open air. `IF I\r
-don't take this child away with me,' thought Alice, `they're sure\r
-to kill it in a day or two: wouldn't it be murder to leave it\r
-behind?' She said the last words out loud, and the little thing\r
-grunted in reply (it had left off sneezing by this time). `Don't\r
-grunt,' said Alice; `that's not at all a proper way of expressing\r
-yourself.'\r
-\r
- The baby grunted again, and Alice looked very anxiously into\r
-its face to see what was the matter with it. There could be no\r
-doubt that it had a VERY turn-up nose, much more like a snout\r
-than a real nose; also its eyes were getting extremely small for\r
-a baby: altogether Alice did not like the look of the thing at\r
-all. `But perhaps it was only sobbing,' she thought, and looked\r
-into its eyes again, to see if there were any tears.\r
-\r
- No, there were no tears. `If you're going to turn into a pig,\r
-my dear,' said Alice, seriously, `I'll have nothing more to do\r
-with you. Mind now!' The poor little thing sobbed again (or\r
-grunted, it was impossible to say which), and they went on for\r
-some while in silence.\r
-\r
- Alice was just beginning to think to herself, `Now, what am I\r
-to do with this creature when I get it home?' when it grunted\r
-again, so violently, that she looked down into its face in some\r
-alarm. This time there could be NO mistake about it: it was\r
-neither more nor less than a pig, and she felt that it would be\r
-quite absurd for her to carry it further.\r
-\r
- So she set the little creature down, and felt quite relieved to\r
-see it trot away quietly into the wood. `If it had grown up,'\r
-she said to herself, `it would have made a dreadfully ugly child:\r
-but it makes rather a handsome pig, I think.' And she began\r
-thinking over other children she knew, who might do very well as\r
-pigs, and was just saying to herself, `if one only knew the right\r
-way to change them--' when she was a little startled by seeing\r
-the Cheshire Cat sitting on a bough of a tree a few yards off.\r
-\r
- The Cat only grinned when it saw Alice. It looked good-\r
-natured, she thought: still it had VERY long claws and a great\r
-many teeth, so she felt that it ought to be treated with respect.\r
-\r
- `Cheshire Puss,' she began, rather timidly, as she did not at\r
-all know whether it would like the name: however, it only\r
-grinned a little wider. `Come, it's pleased so far,' thought\r
-Alice, and she went on. `Would you tell me, please, which way I\r
-ought to go from here?'\r
-\r
- `That depends a good deal on where you want to get to,' said\r
-the Cat.\r
-\r
- `I don't much care where--' said Alice.\r
-\r
- `Then it doesn't matter which way you go,' said the Cat.\r
-\r
- `--so long as I get SOMEWHERE,' Alice added as an explanation.\r
-\r
- `Oh, you're sure to do that,' said the Cat, `if you only walk\r
-long enough.'\r
-\r
- Alice felt that this could not be denied, so she tried another\r
-question. `What sort of people live about here?'\r
-\r
- `In THAT direction,' the Cat said, waving its right paw round,\r
-`lives a Hatter: and in THAT direction,' waving the other paw,\r
-`lives a March Hare. Visit either you like: they're both mad.'\r
-\r
- `But I don't want to go among mad people,' Alice remarked.\r
-\r
- `Oh, you can't help that,' said the Cat: `we're all mad here.\r
-I'm mad. You're mad.'\r
-\r
- `How do you know I'm mad?' said Alice.\r
-\r
- `You must be,' said the Cat, `or you wouldn't have come here.'\r
-\r
- Alice didn't think that proved it at all; however, she went on\r
-`And how do you know that you're mad?'\r
-\r
- `To begin with,' said the Cat, `a dog's not mad. You grant\r
-that?'\r
-\r
- `I suppose so,' said Alice.\r
-\r
- `Well, then,' the Cat went on, `you see, a dog growls when it's\r
-angry, and wags its tail when it's pleased. Now I growl when I'm\r
-pleased, and wag my tail when I'm angry. Therefore I'm mad.'\r
-\r
- `I call it purring, not growling,' said Alice.\r
-\r
- `Call it what you like,' said the Cat. `Do you play croquet\r
-with the Queen to-day?'\r
-\r
- `I should like it very much,' said Alice, `but I haven't been\r
-invited yet.'\r
-\r
- `You'll see me there,' said the Cat, and vanished.\r
-\r
- Alice was not much surprised at this, she was getting so used\r
-to queer things happening. While she was looking at the place\r
-where it had been, it suddenly appeared again.\r
-\r
- `By-the-bye, what became of the baby?' said the Cat. `I'd\r
-nearly forgotten to ask.'\r
-\r
- `It turned into a pig,' Alice quietly said, just as if it had\r
-come back in a natural way.\r
-\r
- `I thought it would,' said the Cat, and vanished again.\r
-\r
- Alice waited a little, half expecting to see it again, but it\r
-did not appear, and after a minute or two she walked on in the\r
-direction in which the March Hare was said to live. `I've seen\r
-hatters before,' she said to herself; `the March Hare will be\r
-much the most interesting, and perhaps as this is May it won't be\r
-raving mad--at least not so mad as it was in March.' As she said\r
-this, she looked up, and there was the Cat again, sitting on a\r
-branch of a tree.\r
-\r
- `Did you say pig, or fig?' said the Cat.\r
-\r
- `I said pig,' replied Alice; `and I wish you wouldn't keep\r
-appearing and vanishing so suddenly: you make one quite giddy.'\r
-\r
- `All right,' said the Cat; and this time it vanished quite\r
-slowly, beginning with the end of the tail, and ending with the\r
-grin, which remained some time after the rest of it had gone.\r
-\r
- `Well! I've often seen a cat without a grin,' thought Alice;\r
-`but a grin without a cat! It's the most curious thing I ever\r
-say in my life!'\r
-\r
- She had not gone much farther before she came in sight of the\r
-house of the March Hare: she thought it must be the right house,\r
-because the chimneys were shaped like ears and the roof was\r
-thatched with fur. It was so large a house, that she did not\r
-like to go nearer till she had nibbled some more of the lefthand\r
-bit of mushroom, and raised herself to about two feet high: even\r
-then she walked up towards it rather timidly, saying to herself\r
-`Suppose it should be raving mad after all! I almost wish I'd\r
-gone to see the Hatter instead!'\r
-\r
-\r
-\r
- CHAPTER VII\r
-\r
- A Mad Tea-Party\r
-\r
-\r
- There was a table set out under a tree in front of the house,\r
-and the March Hare and the Hatter were having tea at it: a\r
-Dormouse was sitting between them, fast asleep, and the other two\r
-were using it as a cushion, resting their elbows on it, and the\r
-talking over its head. `Very uncomfortable for the Dormouse,'\r
-thought Alice; `only, as it's asleep, I suppose it doesn't mind.'\r
-\r
- The table was a large one, but the three were all crowded\r
-together at one corner of it: `No room! No room!' they cried\r
-out when they saw Alice coming. `There's PLENTY of room!' said\r
-Alice indignantly, and she sat down in a large arm-chair at one\r
-end of the table.\r
-\r
- `Have some wine,' the March Hare said in an encouraging tone.\r
-\r
- Alice looked all round the table, but there was nothing on it\r
-but tea. `I don't see any wine,' she remarked.\r
-\r
- `There isn't any,' said the March Hare.\r
-\r
- `Then it wasn't very civil of you to offer it,' said Alice\r
-angrily.\r
-\r
- `It wasn't very civil of you to sit down without being\r
-invited,' said the March Hare.\r
-\r
- `I didn't know it was YOUR table,' said Alice; `it's laid for a\r
-great many more than three.'\r
-\r
- `Your hair wants cutting,' said the Hatter. He had been\r
-looking at Alice for some time with great curiosity, and this was\r
-his first speech.\r
-\r
- `You should learn not to make personal remarks,' Alice said\r
-with some severity; `it's very rude.'\r
-\r
- The Hatter opened his eyes very wide on hearing this; but all\r
-he SAID was, `Why is a raven like a writing-desk?'\r
-\r
- `Come, we shall have some fun now!' thought Alice. `I'm glad\r
-they've begun asking riddles.--I believe I can guess that,' she\r
-added aloud.\r
-\r
- `Do you mean that you think you can find out the answer to it?'\r
-said the March Hare.\r
-\r
- `Exactly so,' said Alice.\r
-\r
- `Then you should say what you mean,' the March Hare went on.\r
-\r
- `I do,' Alice hastily replied; `at least--at least I mean what\r
-I say--that's the same thing, you know.'\r
-\r
- `Not the same thing a bit!' said the Hatter. `You might just\r
-as well say that "I see what I eat" is the same thing as "I eat\r
-what I see"!'\r
-\r
- `You might just as well say,' added the March Hare, `that "I\r
-like what I get" is the same thing as "I get what I like"!'\r
-\r
- `You might just as well say,' added the Dormouse, who seemed to\r
-be talking in his sleep, `that "I breathe when I sleep" is the\r
-same thing as "I sleep when I breathe"!'\r
-\r
- `It IS the same thing with you,' said the Hatter, and here the\r
-conversation dropped, and the party sat silent for a minute,\r
-while Alice thought over all she could remember about ravens and\r
-writing-desks, which wasn't much.\r
-\r
- The Hatter was the first to break the silence. `What day of\r
-the month is it?' he said, turning to Alice: he had taken his\r
-watch out of his pocket, and was looking at it uneasily, shaking\r
-it every now and then, and holding it to his ear.\r
-\r
- Alice considered a little, and then said `The fourth.'\r
-\r
- `Two days wrong!' sighed the Hatter. `I told you butter\r
-wouldn't suit the works!' he added looking angrily at the March\r
-Hare.\r
-\r
- `It was the BEST butter,' the March Hare meekly replied.\r
-\r
- `Yes, but some crumbs must have got in as well,' the Hatter\r
-grumbled: `you shouldn't have put it in with the bread-knife.'\r
-\r
- The March Hare took the watch and looked at it gloomily: then\r
-he dipped it into his cup of tea, and looked at it again: but he\r
-could think of nothing better to say than his first remark, `It\r
-was the BEST butter, you know.'\r
-\r
- Alice had been looking over his shoulder with some curiosity.\r
-`What a funny watch!' she remarked. `It tells the day of the\r
-month, and doesn't tell what o'clock it is!'\r
-\r
- `Why should it?' muttered the Hatter. `Does YOUR watch tell\r
-you what year it is?'\r
-\r
- `Of course not,' Alice replied very readily: `but that's\r
-because it stays the same year for such a long time together.'\r
-\r
- `Which is just the case with MINE,' said the Hatter.\r
-\r
- Alice felt dreadfully puzzled. The Hatter's remark seemed to\r
-have no sort of meaning in it, and yet it was certainly English.\r
-`I don't quite understand you,' she said, as politely as she\r
-could.\r
-\r
- `The Dormouse is asleep again,' said the Hatter, and he poured\r
-a little hot tea upon its nose.\r
-\r
- The Dormouse shook its head impatiently, and said, without\r
-opening its eyes, `Of course, of course; just what I was going to\r
-remark myself.'\r
-\r
- `Have you guessed the riddle yet?' the Hatter said, turning to\r
-Alice again.\r
-\r
- `No, I give it up,' Alice replied: `what's the answer?'\r
-\r
- `I haven't the slightest idea,' said the Hatter.\r
-\r
- `Nor I,' said the March Hare.\r
-\r
- Alice sighed wearily. `I think you might do something better\r
-with the time,' she said, `than waste it in asking riddles that\r
-have no answers.'\r
-\r
- `If you knew Time as well as I do,' said the Hatter, `you\r
-wouldn't talk about wasting IT. It's HIM.'\r
-\r
- `I don't know what you mean,' said Alice.\r
-\r
- `Of course you don't!' the Hatter said, tossing his head\r
-contemptuously. `I dare say you never even spoke to Time!'\r
-\r
- `Perhaps not,' Alice cautiously replied: `but I know I have to\r
-beat time when I learn music.'\r
-\r
- `Ah! that accounts for it,' said the Hatter. `He won't stand\r
-beating. Now, if you only kept on good terms with him, he'd do\r
-almost anything you liked with the clock. For instance, suppose\r
-it were nine o'clock in the morning, just time to begin lessons:\r
-you'd only have to whisper a hint to Time, and round goes the\r
-clock in a twinkling! Half-past one, time for dinner!'\r
-\r
- (`I only wish it was,' the March Hare said to itself in a\r
-whisper.)\r
-\r
- `That would be grand, certainly,' said Alice thoughtfully:\r
-`but then--I shouldn't be hungry for it, you know.'\r
-\r
- `Not at first, perhaps,' said the Hatter: `but you could keep\r
-it to half-past one as long as you liked.'\r
-\r
- `Is that the way YOU manage?' Alice asked.\r
-\r
- The Hatter shook his head mournfully. `Not I!' he replied.\r
-`We quarrelled last March--just before HE went mad, you know--'\r
-(pointing with his tea spoon at the March Hare,) `--it was at the\r
-great concert given by the Queen of Hearts, and I had to sing\r
-\r
- "Twinkle, twinkle, little bat!\r
- How I wonder what you're at!"\r
-\r
-You know the song, perhaps?'\r
-\r
- `I've heard something like it,' said Alice.\r
-\r
- `It goes on, you know,' the Hatter continued, `in this way:--\r
-\r
- "Up above the world you fly,\r
- Like a tea-tray in the sky.\r
- Twinkle, twinkle--"'\r
-\r
-Here the Dormouse shook itself, and began singing in its sleep\r
-`Twinkle, twinkle, twinkle, twinkle--' and went on so long that\r
-they had to pinch it to make it stop.\r
-\r
- `Well, I'd hardly finished the first verse,' said the Hatter,\r
-`when the Queen jumped up and bawled out, "He's murdering the\r
-time! Off with his head!"'\r
-\r
- `How dreadfully savage!' exclaimed Alice.\r
-\r
- `And ever since that,' the Hatter went on in a mournful tone,\r
-`he won't do a thing I ask! It's always six o'clock now.'\r
-\r
- A bright idea came into Alice's head. `Is that the reason so\r
-many tea-things are put out here?' she asked.\r
-\r
- `Yes, that's it,' said the Hatter with a sigh: `it's always\r
-tea-time, and we've no time to wash the things between whiles.'\r
-\r
- `Then you keep moving round, I suppose?' said Alice.\r
-\r
- `Exactly so,' said the Hatter: `as the things get used up.'\r
-\r
- `But what happens when you come to the beginning again?' Alice\r
-ventured to ask.\r
-\r
- `Suppose we change the subject,' the March Hare interrupted,\r
-yawning. `I'm getting tired of this. I vote the young lady\r
-tells us a story.'\r
-\r
- `I'm afraid I don't know one,' said Alice, rather alarmed at\r
-the proposal.\r
-\r
- `Then the Dormouse shall!' they both cried. `Wake up,\r
-Dormouse!' And they pinched it on both sides at once.\r
-\r
- The Dormouse slowly opened his eyes. `I wasn't asleep,' he\r
-said in a hoarse, feeble voice: `I heard every word you fellows\r
-were saying.'\r
-\r
- `Tell us a story!' said the March Hare.\r
-\r
- `Yes, please do!' pleaded Alice.\r
-\r
- `And be quick about it,' added the Hatter, `or you'll be asleep\r
-again before it's done.'\r
-\r
- `Once upon a time there were three little sisters,' the\r
-Dormouse began in a great hurry; `and their names were Elsie,\r
-Lacie, and Tillie; and they lived at the bottom of a well--'\r
-\r
- `What did they live on?' said Alice, who always took a great\r
-interest in questions of eating and drinking.\r
-\r
- `They lived on treacle,' said the Dormouse, after thinking a\r
-minute or two.\r
-\r
- `They couldn't have done that, you know,' Alice gently\r
-remarked; `they'd have been ill.'\r
-\r
- `So they were,' said the Dormouse; `VERY ill.'\r
-\r
- Alice tried to fancy to herself what such an extraordinary ways\r
-of living would be like, but it puzzled her too much, so she went\r
-on: `But why did they live at the bottom of a well?'\r
-\r
- `Take some more tea,' the March Hare said to Alice, very\r
-earnestly.\r
-\r
- `I've had nothing yet,' Alice replied in an offended tone, `so\r
-I can't take more.'\r
-\r
- `You mean you can't take LESS,' said the Hatter: `it's very\r
-easy to take MORE than nothing.'\r
-\r
- `Nobody asked YOUR opinion,' said Alice.\r
-\r
- `Who's making personal remarks now?' the Hatter asked\r
-triumphantly.\r
-\r
- Alice did not quite know what to say to this: so she helped\r
-herself to some tea and bread-and-butter, and then turned to the\r
-Dormouse, and repeated her question. `Why did they live at the\r
-bottom of a well?'\r
-\r
- The Dormouse again took a minute or two to think about it, and\r
-then said, `It was a treacle-well.'\r
-\r
- `There's no such thing!' Alice was beginning very angrily, but\r
-the Hatter and the March Hare went `Sh! sh!' and the Dormouse\r
-sulkily remarked, `If you can't be civil, you'd better finish the\r
-story for yourself.'\r
-\r
- `No, please go on!' Alice said very humbly; `I won't interrupt\r
-again. I dare say there may be ONE.'\r
-\r
- `One, indeed!' said the Dormouse indignantly. However, he\r
-consented to go on. `And so these three little sisters--they\r
-were learning to draw, you know--'\r
-\r
- `What did they draw?' said Alice, quite forgetting her promise.\r
-\r
- `Treacle,' said the Dormouse, without considering at all this\r
-time.\r
-\r
- `I want a clean cup,' interrupted the Hatter: `let's all move\r
-one place on.'\r
-\r
- He moved on as he spoke, and the Dormouse followed him: the\r
-March Hare moved into the Dormouse's place, and Alice rather\r
-unwillingly took the place of the March Hare. The Hatter was the\r
-only one who got any advantage from the change: and Alice was a\r
-good deal worse off than before, as the March Hare had just upset\r
-the milk-jug into his plate.\r
-\r
- Alice did not wish to offend the Dormouse again, so she began\r
-very cautiously: `But I don't understand. Where did they draw\r
-the treacle from?'\r
-\r
- `You can draw water out of a water-well,' said the Hatter; `so\r
-I should think you could draw treacle out of a treacle-well--eh,\r
-stupid?'\r
-\r
- `But they were IN the well,' Alice said to the Dormouse, not\r
-choosing to notice this last remark.\r
-\r
- `Of course they were', said the Dormouse; `--well in.'\r
-\r
- This answer so confused poor Alice, that she let the Dormouse\r
-go on for some time without interrupting it.\r
-\r
- `They were learning to draw,' the Dormouse went on, yawning and\r
-rubbing its eyes, for it was getting very sleepy; `and they drew\r
-all manner of things--everything that begins with an M--'\r
-\r
- `Why with an M?' said Alice.\r
-\r
- `Why not?' said the March Hare.\r
-\r
- Alice was silent.\r
-\r
- The Dormouse had closed its eyes by this time, and was going\r
-off into a doze; but, on being pinched by the Hatter, it woke up\r
-again with a little shriek, and went on: `--that begins with an\r
-M, such as mouse-traps, and the moon, and memory, and muchness--\r
-you know you say things are "much of a muchness"--did you ever\r
-see such a thing as a drawing of a muchness?'\r
-\r
- `Really, now you ask me,' said Alice, very much confused, `I\r
-don't think--'\r
-\r
- `Then you shouldn't talk,' said the Hatter.\r
-\r
- This piece of rudeness was more than Alice could bear: she got\r
-up in great disgust, and walked off; the Dormouse fell asleep\r
-instantly, and neither of the others took the least notice of her\r
-going, though she looked back once or twice, half hoping that\r
-they would call after her: the last time she saw them, they were\r
-trying to put the Dormouse into the teapot.\r
-\r
- `At any rate I'll never go THERE again!' said Alice as she\r
-picked her way through the wood. `It's the stupidest tea-party I\r
-ever was at in all my life!'\r
-\r
- Just as she said this, she noticed that one of the trees had a\r
-door leading right into it. `That's very curious!' she thought.\r
-`But everything's curious today. I think I may as well go in at\r
-once.' And in she went.\r
-\r
- Once more she found herself in the long hall, and close to the\r
-little glass table. `Now, I'll manage better this time,' she\r
-said to herself, and began by taking the little golden key, and\r
-unlocking the door that led into the garden. Then she went to\r
-work nibbling at the mushroom (she had kept a piece of it in her\r
-pocked) till she was about a foot high: then she walked down the\r
-little passage: and THEN--she found herself at last in the\r
-beautiful garden, among the bright flower-beds and the cool\r
-fountains.\r
-\r
-\r
-\r
- CHAPTER VIII\r
-\r
- The Queen's Croquet-Ground\r
-\r
-\r
- A large rose-tree stood near the entrance of the garden: the\r
-roses growing on it were white, but there were three gardeners at\r
-it, busily painting them red. Alice thought this a very curious\r
-thing, and she went nearer to watch them, and just as she came up\r
-to them she heard one of them say, `Look out now, Five! Don't go\r
-splashing paint over me like that!'\r
-\r
- `I couldn't help it,' said Five, in a sulky tone; `Seven jogged\r
-my elbow.'\r
-\r
- On which Seven looked up and said, `That's right, Five! Always\r
-lay the blame on others!'\r
-\r
- `YOU'D better not talk!' said Five. `I heard the Queen say only\r
-yesterday you deserved to be beheaded!'\r
-\r
- `What for?' said the one who had spoken first.\r
-\r
- `That's none of YOUR business, Two!' said Seven.\r
-\r
- `Yes, it IS his business!' said Five, `and I'll tell him--it\r
-was for bringing the cook tulip-roots instead of onions.'\r
-\r
- Seven flung down his brush, and had just begun `Well, of all\r
-the unjust things--' when his eye chanced to fall upon Alice, as\r
-she stood watching them, and he checked himself suddenly: the\r
-others looked round also, and all of them bowed low.\r
-\r
- `Would you tell me,' said Alice, a little timidly, `why you are\r
-painting those roses?'\r
-\r
- Five and Seven said nothing, but looked at Two. Two began in a\r
-low voice, `Why the fact is, you see, Miss, this here ought to\r
-have been a RED rose-tree, and we put a white one in by mistake;\r
-and if the Queen was to find it out, we should all have our heads\r
-cut off, you know. So you see, Miss, we're doing our best, afore\r
-she comes, to--' At this moment Five, who had been anxiously\r
-looking across the garden, called out `The Queen! The Queen!'\r
-and the three gardeners instantly threw themselves flat upon\r
-their faces. There was a sound of many footsteps, and Alice\r
-looked round, eager to see the Queen.\r
-\r
- First came ten soldiers carrying clubs; these were all shaped\r
-like the three gardeners, oblong and flat, with their hands and\r
-feet at the corners: next the ten courtiers; these were\r
-ornamented all over with diamonds, and walked two and two, as the\r
-soldiers did. After these came the royal children; there were\r
-ten of them, and the little dears came jumping merrily along hand\r
-in hand, in couples: they were all ornamented with hearts. Next\r
-came the guests, mostly Kings and Queens, and among them Alice\r
-recognised the White Rabbit: it was talking in a hurried nervous\r
-manner, smiling at everything that was said, and went by without\r
-noticing her. Then followed the Knave of Hearts, carrying the\r
-King's crown on a crimson velvet cushion; and, last of all this\r
-grand procession, came THE KING AND QUEEN OF HEARTS.\r
-\r
- Alice was rather doubtful whether she ought not to lie down on\r
-her face like the three gardeners, but she could not remember\r
-every having heard of such a rule at processions; `and besides,\r
-what would be the use of a procession,' thought she, `if people\r
-had all to lie down upon their faces, so that they couldn't see\r
-it?' So she stood still where she was, and waited.\r
-\r
- When the procession came opposite to Alice, they all stopped\r
-and looked at her, and the Queen said severely `Who is this?'\r
-She said it to the Knave of Hearts, who only bowed and smiled in\r
-reply.\r
-\r
- `Idiot!' said the Queen, tossing her head impatiently; and,\r
-turning to Alice, she went on, `What's your name, child?'\r
-\r
- `My name is Alice, so please your Majesty,' said Alice very\r
-politely; but she added, to herself, `Why, they're only a pack of\r
-cards, after all. I needn't be afraid of them!'\r
-\r
- `And who are THESE?' said the Queen, pointing to the three\r
-gardeners who were lying round the rosetree; for, you see, as\r
-they were lying on their faces, and the pattern on their backs\r
-was the same as the rest of the pack, she could not tell whether\r
-they were gardeners, or soldiers, or courtiers, or three of her\r
-own children.\r
-\r
- `How should I know?' said Alice, surprised at her own courage.\r
-`It's no business of MINE.'\r
-\r
- The Queen turned crimson with fury, and, after glaring at her\r
-for a moment like a wild beast, screamed `Off with her head!\r
-Off--'\r
-\r
- `Nonsense!' said Alice, very loudly and decidedly, and the\r
-Queen was silent.\r
-\r
- The King laid his hand upon her arm, and timidly said\r
-`Consider, my dear: she is only a child!'\r
-\r
- The Queen turned angrily away from him, and said to the Knave\r
-`Turn them over!'\r
-\r
- The Knave did so, very carefully, with one foot.\r
-\r
- `Get up!' said the Queen, in a shrill, loud voice, and the\r
-three gardeners instantly jumped up, and began bowing to the\r
-King, the Queen, the royal children, and everybody else.\r
-\r
- `Leave off that!' screamed the Queen. `You make me giddy.'\r
-And then, turning to the rose-tree, she went on, `What HAVE you\r
-been doing here?'\r
-\r
- `May it please your Majesty,' said Two, in a very humble tone,\r
-going down on one knee as he spoke, `we were trying--'\r
-\r
- `I see!' said the Queen, who had meanwhile been examining the\r
-roses. `Off with their heads!' and the procession moved on,\r
-three of the soldiers remaining behind to execute the unfortunate\r
-gardeners, who ran to Alice for protection.\r
-\r
- `You shan't be beheaded!' said Alice, and she put them into a\r
-large flower-pot that stood near. The three soldiers wandered\r
-about for a minute or two, looking for them, and then quietly\r
-marched off after the others.\r
-\r
- `Are their heads off?' shouted the Queen.\r
-\r
- `Their heads are gone, if it please your Majesty!' the soldiers\r
-shouted in reply.\r
-\r
- `That's right!' shouted the Queen. `Can you play croquet?'\r
-\r
- The soldiers were silent, and looked at Alice, as the question\r
-was evidently meant for her.\r
-\r
- `Yes!' shouted Alice.\r
-\r
- `Come on, then!' roared the Queen, and Alice joined the\r
-procession, wondering very much what would happen next.\r
-\r
- `It's--it's a very fine day!' said a timid voice at her side.\r
-She was walking by the White Rabbit, who was peeping anxiously\r
-into her face.\r
-\r
- `Very,' said Alice: `--where's the Duchess?'\r
-\r
- `Hush! Hush!' said the Rabbit in a low, hurried tone. He\r
-looked anxiously over his shoulder as he spoke, and then raised\r
-himself upon tiptoe, put his mouth close to her ear, and\r
-whispered `She's under sentence of execution.'\r
-\r
- `What for?' said Alice.\r
-\r
- `Did you say "What a pity!"?' the Rabbit asked.\r
-\r
- `No, I didn't,' said Alice: `I don't think it's at all a pity.\r
-I said "What for?"'\r
-\r
- `She boxed the Queen's ears--' the Rabbit began. Alice gave a\r
-little scream of laughter. `Oh, hush!' the Rabbit whispered in a\r
-frightened tone. `The Queen will hear you! You see, she came\r
-rather late, and the Queen said--'\r
-\r
- `Get to your places!' shouted the Queen in a voice of thunder,\r
-and people began running about in all directions, tumbling up\r
-against each other; however, they got settled down in a minute or\r
-two, and the game began. Alice thought she had never seen such a\r
-curious croquet-ground in her life; it was all ridges and\r
-furrows; the balls were live hedgehogs, the mallets live\r
-flamingoes, and the soldiers had to double themselves up and to\r
-stand on their hands and feet, to make the arches.\r
-\r
- The chief difficulty Alice found at first was in managing her\r
-flamingo: she succeeded in getting its body tucked away,\r
-comfortably enough, under her arm, with its legs hanging down,\r
-but generally, just as she had got its neck nicely straightened\r
-out, and was going to give the hedgehog a blow with its head, it\r
-WOULD twist itself round and look up in her face, with such a\r
-puzzled expression that she could not help bursting out laughing:\r
-and when she had got its head down, and was going to begin again,\r
-it was very provoking to find that the hedgehog had unrolled\r
-itself, and was in the act of crawling away: besides all this,\r
-there was generally a ridge or furrow in the way wherever she\r
-wanted to send the hedgehog to, and, as the doubled-up soldiers\r
-were always getting up and walking off to other parts of the\r
-ground, Alice soon came to the conclusion that it was a very\r
-difficult game indeed.\r
-\r
- The players all played at once without waiting for turns,\r
-quarrelling all the while, and fighting for the hedgehogs; and in\r
-a very short time the Queen was in a furious passion, and went\r
-stamping about, and shouting `Off with his head!' or `Off with\r
-her head!' about once in a minute.\r
-\r
- Alice began to feel very uneasy: to be sure, she had not as\r
-yet had any dispute with the Queen, but she knew that it might\r
-happen any minute, `and then,' thought she, `what would become of\r
-me? They're dreadfully fond of beheading people here; the great\r
-wonder is, that there's any one left alive!'\r
-\r
- She was looking about for some way of escape, and wondering\r
-whether she could get away without being seen, when she noticed a\r
-curious appearance in the air: it puzzled her very much at\r
-first, but, after watching it a minute or two, she made it out to\r
-be a grin, and she said to herself `It's the Cheshire Cat: now I\r
-shall have somebody to talk to.'\r
-\r
- `How are you getting on?' said the Cat, as soon as there was\r
-mouth enough for it to speak with.\r
-\r
- Alice waited till the eyes appeared, and then nodded. `It's no\r
-use speaking to it,' she thought, `till its ears have come, or at\r
-least one of them.' In another minute the whole head appeared,\r
-and then Alice put down her flamingo, and began an account of the\r
-game, feeling very glad she had someone to listen to her. The\r
-Cat seemed to think that there was enough of it now in sight, and\r
-no more of it appeared.\r
-\r
- `I don't think they play at all fairly,' Alice began, in rather\r
-a complaining tone, `and they all quarrel so dreadfully one can't\r
-hear oneself speak--and they don't seem to have any rules in\r
-particular; at least, if there are, nobody attends to them--and\r
-you've no idea how confusing it is all the things being alive;\r
-for instance, there's the arch I've got to go through next\r
-walking about at the other end of the ground--and I should have\r
-croqueted the Queen's hedgehog just now, only it ran away when it\r
-saw mine coming!'\r
-\r
- `How do you like the Queen?' said the Cat in a low voice.\r
-\r
- `Not at all,' said Alice: `she's so extremely--' Just then\r
-she noticed that the Queen was close behind her, listening: so\r
-she went on, `--likely to win, that it's hardly worth while\r
-finishing the game.'\r
-\r
- The Queen smiled and passed on.\r
-\r
- `Who ARE you talking to?' said the King, going up to Alice, and\r
-looking at the Cat's head with great curiosity.\r
-\r
- `It's a friend of mine--a Cheshire Cat,' said Alice: `allow me\r
-to introduce it.'\r
-\r
- `I don't like the look of it at all,' said the King: `however,\r
-it may kiss my hand if it likes.'\r
-\r
- `I'd rather not,' the Cat remarked.\r
-\r
- `Don't be impertinent,' said the King, `and don't look at me\r
-like that!' He got behind Alice as he spoke.\r
-\r
- `A cat may look at a king,' said Alice. `I've read that in\r
-some book, but I don't remember where.'\r
-\r
- `Well, it must be removed,' said the King very decidedly, and\r
-he called the Queen, who was passing at the moment, `My dear! I\r
-wish you would have this cat removed!'\r
-\r
- The Queen had only one way of settling all difficulties, great\r
-or small. `Off with his head!' she said, without even looking\r
-round.\r
-\r
- `I'll fetch the executioner myself,' said the King eagerly, and\r
-he hurried off.\r
-\r
- Alice thought she might as well go back, and see how the game\r
-was going on, as she heard the Queen's voice in the distance,\r
-screaming with passion. She had already heard her sentence three\r
-of the players to be executed for having missed their turns, and\r
-she did not like the look of things at all, as the game was in\r
-such confusion that she never knew whether it was her turn or\r
-not. So she went in search of her hedgehog.\r
-\r
- The hedgehog was engaged in a fight with another hedgehog,\r
-which seemed to Alice an excellent opportunity for croqueting one\r
-of them with the other: the only difficulty was, that her\r
-flamingo was gone across to the other side of the garden, where\r
-Alice could see it trying in a helpless sort of way to fly up\r
-into a tree.\r
-\r
- By the time she had caught the flamingo and brought it back,\r
-the fight was over, and both the hedgehogs were out of sight:\r
-`but it doesn't matter much,' thought Alice, `as all the arches\r
-are gone from this side of the ground.' So she tucked it away\r
-under her arm, that it might not escape again, and went back for\r
-a little more conversation with her friend.\r
-\r
- When she got back to the Cheshire Cat, she was surprised to\r
-find quite a large crowd collected round it: there was a dispute\r
-going on between the executioner, the King, and the Queen, who\r
-were all talking at once, while all the rest were quite silent,\r
-and looked very uncomfortable.\r
-\r
- The moment Alice appeared, she was appealed to by all three to\r
-settle the question, and they repeated their arguments to her,\r
-though, as they all spoke at once, she found it very hard indeed\r
-to make out exactly what they said.\r
-\r
- The executioner's argument was, that you couldn't cut off a\r
-head unless there was a body to cut it off from: that he had\r
-never had to do such a thing before, and he wasn't going to begin\r
-at HIS time of life.\r
-\r
- The King's argument was, that anything that had a head could be\r
-beheaded, and that you weren't to talk nonsense.\r
-\r
- The Queen's argument was, that if something wasn't done about\r
-it in less than no time she'd have everybody executed, all round.\r
-(It was this last remark that had made the whole party look so\r
-grave and anxious.)\r
-\r
- Alice could think of nothing else to say but `It belongs to the\r
-Duchess: you'd better ask HER about it.'\r
-\r
- `She's in prison,' the Queen said to the executioner: `fetch\r
-her here.' And the executioner went off like an arrow.\r
-\r
- The Cat's head began fading away the moment he was gone, and,\r
-by the time he had come back with the Dutchess, it had entirely\r
-disappeared; so the King and the executioner ran wildly up and\r
-down looking for it, while the rest of the party went back to the game.\r
-\r
-\r
-\r
- CHAPTER IX\r
-\r
- The Mock Turtle's Story\r
-\r
-\r
- `You can't think how glad I am to see you again, you dear old\r
-thing!' said the Duchess, as she tucked her arm affectionately\r
-into Alice's, and they walked off together.\r
-\r
- Alice was very glad to find her in such a pleasant temper, and\r
-thought to herself that perhaps it was only the pepper that had\r
-made her so savage when they met in the kitchen.\r
-\r
- `When I'M a Duchess,' she said to herself, (not in a very\r
-hopeful tone though), `I won't have any pepper in my kitchen AT\r
-ALL. Soup does very well without--Maybe it's always pepper that\r
-makes people hot-tempered,' she went on, very much pleased at\r
-having found out a new kind of rule, `and vinegar that makes them\r
-sour--and camomile that makes them bitter--and--and barley-sugar\r
-and such things that make children sweet-tempered. I only wish\r
-people knew that: then they wouldn't be so stingy about it, you\r
-know--'\r
-\r
- She had quite forgotten the Duchess by this time, and was a\r
-little startled when she heard her voice close to her ear.\r
-`You're thinking about something, my dear, and that makes you\r
-forget to talk. I can't tell you just now what the moral of that\r
-is, but I shall remember it in a bit.'\r
-\r
- `Perhaps it hasn't one,' Alice ventured to remark.\r
-\r
- `Tut, tut, child!' said the Duchess. `Everything's got a\r
-moral, if only you can find it.' And she squeezed herself up\r
-closer to Alice's side as she spoke.\r
-\r
- Alice did not much like keeping so close to her: first,\r
-because the Duchess was VERY ugly; and secondly, because she was\r
-exactly the right height to rest her chin upon Alice's shoulder,\r
-and it was an uncomfortably sharp chin. However, she did not\r
-like to be rude, so she bore it as well as she could.\r
-\r
- `The game's going on rather better now,' she said, by way of\r
-keeping up the conversation a little.\r
-\r
- `'Tis so,' said the Duchess: `and the moral of that is--"Oh,\r
-'tis love, 'tis love, that makes the world go round!"'\r
-\r
- `Somebody said,' Alice whispered, `that it's done by everybody\r
-minding their own business!'\r
-\r
- `Ah, well! It means much the same thing,' said the Duchess,\r
-digging her sharp little chin into Alice's shoulder as she added,\r
-`and the moral of THAT is--"Take care of the sense, and the\r
-sounds will take care of themselves."'\r
-\r
- `How fond she is of finding morals in things!' Alice thought to\r
-herself.\r
-\r
- `I dare say you're wondering why I don't put my arm round your\r
-waist,' the Duchess said after a pause: `the reason is, that I'm\r
-doubtful about the temper of your flamingo. Shall I try the\r
-experiment?'\r
-\r
- `HE might bite,' Alice cautiously replied, not feeling at all\r
-anxious to have the experiment tried.\r
-\r
- `Very true,' said the Duchess: `flamingoes and mustard both\r
-bite. And the moral of that is--"Birds of a feather flock\r
-together."'\r
-\r
- `Only mustard isn't a bird,' Alice remarked.\r
-\r
- `Right, as usual,' said the Duchess: `what a clear way you\r
-have of putting things!'\r
-\r
- `It's a mineral, I THINK,' said Alice.\r
-\r
- `Of course it is,' said the Duchess, who seemed ready to agree\r
-to everything that Alice said; `there's a large mustard-mine near\r
-here. And the moral of that is--"The more there is of mine, the\r
-less there is of yours."'\r
-\r
- `Oh, I know!' exclaimed Alice, who had not attended to this\r
-last remark, `it's a vegetable. It doesn't look like one, but it\r
-is.'\r
-\r
- `I quite agree with you,' said the Duchess; `and the moral of\r
-that is--"Be what you would seem to be"--or if you'd like it put\r
-more simply--"Never imagine yourself not to be otherwise than\r
-what it might appear to others that what you were or might have\r
-been was not otherwise than what you had been would have appeared\r
-to them to be otherwise."'\r
-\r
- `I think I should understand that better,' Alice said very\r
-politely, `if I had it written down: but I can't quite follow it\r
-as you say it.'\r
-\r
- `That's nothing to what I could say if I chose,' the Duchess\r
-replied, in a pleased tone.\r
-\r
- `Pray don't trouble yourself to say it any longer than that,'\r
-said Alice.\r
-\r
- `Oh, don't talk about trouble!' said the Duchess. `I make you\r
-a present of everything I've said as yet.'\r
-\r
- `A cheap sort of present!' thought Alice. `I'm glad they don't\r
-give birthday presents like that!' But she did not venture to\r
-say it out loud.\r
-\r
- `Thinking again?' the Duchess asked, with another dig of her\r
-sharp little chin.\r
-\r
- `I've a right to think,' said Alice sharply, for she was\r
-beginning to feel a little worried.\r
-\r
- `Just about as much right,' said the Duchess, `as pigs have to\r
-fly; and the m--'\r
-\r
- But here, to Alice's great surprise, the Duchess's voice died\r
-away, even in the middle of her favourite word `moral,' and the\r
-arm that was linked into hers began to tremble. Alice looked up,\r
-and there stood the Queen in front of them, with her arms folded,\r
-frowning like a thunderstorm.\r
-\r
- `A fine day, your Majesty!' the Duchess began in a low, weak\r
-voice.\r
-\r
- `Now, I give you fair warning,' shouted the Queen, stamping on\r
-the ground as she spoke; `either you or your head must be off,\r
-and that in about half no time! Take your choice!'\r
-\r
- The Duchess took her choice, and was gone in a moment.\r
-\r
- `Let's go on with the game,' the Queen said to Alice; and Alice\r
-was too much frightened to say a word, but slowly followed her\r
-back to the croquet-ground.\r
-\r
- The other guests had taken advantage of the Queen's absence,\r
-and were resting in the shade: however, the moment they saw her,\r
-they hurried back to the game, the Queen merely remarking that a\r
-moment's delay would cost them their lives.\r
-\r
- All the time they were playing the Queen never left off\r
-quarrelling with the other players, and shouting `Off with his\r
-head!' or `Off with her head!' Those whom she sentenced were\r
-taken into custody by the soldiers, who of course had to leave\r
-off being arches to do this, so that by the end of half an hour\r
-or so there were no arches left, and all the players, except the\r
-King, the Queen, and Alice, were in custody and under sentence of\r
-execution.\r
-\r
- Then the Queen left off, quite out of breath, and said to\r
-Alice, `Have you seen the Mock Turtle yet?'\r
-\r
- `No,' said Alice. `I don't even know what a Mock Turtle is.'\r
-\r
- `It's the thing Mock Turtle Soup is made from,' said the Queen.\r
-\r
- `I never saw one, or heard of one,' said Alice.\r
-\r
- `Come on, then,' said the Queen, `and he shall tell you his\r
-history,'\r
-\r
- As they walked off together, Alice heard the King say in a low\r
-voice, to the company generally, `You are all pardoned.' `Come,\r
-THAT'S a good thing!' she said to herself, for she had felt quite\r
-unhappy at the number of executions the Queen had ordered.\r
-\r
- They very soon came upon a Gryphon, lying fast asleep in the\r
-sun. (IF you don't know what a Gryphon is, look at the picture.)\r
-`Up, lazy thing!' said the Queen, `and take this young lady to\r
-see the Mock Turtle, and to hear his history. I must go back and\r
-see after some executions I have ordered'; and she walked off,\r
-leaving Alice alone with the Gryphon. Alice did not quite like\r
-the look of the creature, but on the whole she thought it would\r
-be quite as safe to stay with it as to go after that savage\r
-Queen: so she waited.\r
-\r
- The Gryphon sat up and rubbed its eyes: then it watched the\r
-Queen till she was out of sight: then it chuckled. `What fun!'\r
-said the Gryphon, half to itself, half to Alice.\r
-\r
- `What IS the fun?' said Alice.\r
-\r
- `Why, SHE,' said the Gryphon. `It's all her fancy, that: they\r
-never executes nobody, you know. Come on!'\r
-\r
- `Everybody says "come on!" here,' thought Alice, as she went\r
-slowly after it: `I never was so ordered about in all my life,\r
-never!'\r
-\r
- They had not gone far before they saw the Mock Turtle in the\r
-distance, sitting sad and lonely on a little ledge of rock, and,\r
-as they came nearer, Alice could hear him sighing as if his heart\r
-would break. She pitied him deeply. `What is his sorrow?' she\r
-asked the Gryphon, and the Gryphon answered, very nearly in the\r
-same words as before, `It's all his fancy, that: he hasn't got\r
-no sorrow, you know. Come on!'\r
-\r
- So they went up to the Mock Turtle, who looked at them with\r
-large eyes full of tears, but said nothing.\r
-\r
- `This here young lady,' said the Gryphon, `she wants for to\r
-know your history, she do.'\r
-\r
- `I'll tell it her,' said the Mock Turtle in a deep, hollow\r
-tone: `sit down, both of you, and don't speak a word till I've\r
-finished.'\r
-\r
- So they sat down, and nobody spoke for some minutes. Alice\r
-thought to herself, `I don't see how he can EVEN finish, if he\r
-doesn't begin.' But she waited patiently.\r
-\r
- `Once,' said the Mock Turtle at last, with a deep sigh, `I was\r
-a real Turtle.'\r
-\r
- These words were followed by a very long silence, broken only\r
-by an occasional exclamation of `Hjckrrh!' from the Gryphon, and\r
-the constant heavy sobbing of the Mock Turtle. Alice was very\r
-nearly getting up and saying, `Thank you, sir, for your\r
-interesting story,' but she could not help thinking there MUST be\r
-more to come, so she sat still and said nothing.\r
-\r
- `When we were little,' the Mock Turtle went on at last, more\r
-calmly, though still sobbing a little now and then, `we went to\r
-school in the sea. The master was an old Turtle--we used to call\r
-him Tortoise--'\r
-\r
- `Why did you call him Tortoise, if he wasn't one?' Alice asked.\r
-\r
- `We called him Tortoise because he taught us,' said the Mock\r
-Turtle angrily: `really you are very dull!'\r
-\r
- `You ought to be ashamed of yourself for asking such a simple\r
-question,' added the Gryphon; and then they both sat silent and\r
-looked at poor Alice, who felt ready to sink into the earth. At\r
-last the Gryphon said to the Mock Turtle, `Drive on, old fellow!\r
-Don't be all day about it!' and he went on in these words:\r
-\r
- `Yes, we went to school in the sea, though you mayn't believe\r
-it--'\r
-\r
- `I never said I didn't!' interrupted Alice.\r
-\r
- `You did,' said the Mock Turtle.\r
-\r
- `Hold your tongue!' added the Gryphon, before Alice could speak\r
-again. The Mock Turtle went on.\r
-\r
- `We had the best of educations--in fact, we went to school\r
-every day--'\r
-\r
- `I'VE been to a day-school, too,' said Alice; `you needn't be\r
-so proud as all that.'\r
-\r
- `With extras?' asked the Mock Turtle a little anxiously.\r
-\r
- `Yes,' said Alice, `we learned French and music.'\r
-\r
- `And washing?' said the Mock Turtle.\r
-\r
- `Certainly not!' said Alice indignantly.\r
-\r
- `Ah! then yours wasn't a really good school,' said the Mock\r
-Turtle in a tone of great relief. `Now at OURS they had at the\r
-end of the bill, "French, music, AND WASHING--extra."'\r
-\r
- `You couldn't have wanted it much,' said Alice; `living at the\r
-bottom of the sea.'\r
-\r
- `I couldn't afford to learn it.' said the Mock Turtle with a\r
-sigh. `I only took the regular course.'\r
-\r
- `What was that?' inquired Alice.\r
-\r
- `Reeling and Writhing, of course, to begin with,' the Mock\r
-Turtle replied; `and then the different branches of Arithmetic--\r
-Ambition, Distraction, Uglification, and Derision.'\r
-\r
- `I never heard of "Uglification,"' Alice ventured to say. `What\r
-is it?'\r
-\r
- The Gryphon lifted up both its paws in surprise. `What! Never\r
-heard of uglifying!' it exclaimed. `You know what to beautify\r
-is, I suppose?'\r
-\r
- `Yes,' said Alice doubtfully: `it means--to--make--anything--\r
-prettier.'\r
-\r
- `Well, then,' the Gryphon went on, `if you don't know what to\r
-uglify is, you ARE a simpleton.'\r
-\r
- Alice did not feel encouraged to ask any more questions about\r
-it, so she turned to the Mock Turtle, and said `What else had you\r
-to learn?'\r
-\r
- `Well, there was Mystery,' the Mock Turtle replied, counting\r
-off the subjects on his flappers, `--Mystery, ancient and modern,\r
-with Seaography: then Drawling--the Drawling-master was an old\r
-conger-eel, that used to come once a week: HE taught us\r
-Drawling, Stretching, and Fainting in Coils.'\r
-\r
- `What was THAT like?' said Alice.\r
-\r
- `Well, I can't show it you myself,' the Mock Turtle said: `I'm\r
-too stiff. And the Gryphon never learnt it.'\r
-\r
- `Hadn't time,' said the Gryphon: `I went to the Classics\r
-master, though. He was an old crab, HE was.'\r
-\r
- `I never went to him,' the Mock Turtle said with a sigh: `he\r
-taught Laughing and Grief, they used to say.'\r
-\r
- `So he did, so he did,' said the Gryphon, sighing in his turn;\r
-and both creatures hid their faces in their paws.\r
-\r
- `And how many hours a day did you do lessons?' said Alice, in a\r
-hurry to change the subject.\r
-\r
- `Ten hours the first day,' said the Mock Turtle: `nine the\r
-next, and so on.'\r
-\r
- `What a curious plan!' exclaimed Alice.\r
-\r
- `That's the reason they're called lessons,' the Gryphon\r
-remarked: `because they lessen from day to day.'\r
-\r
- This was quite a new idea to Alice, and she thought it over a\r
-little before she made her next remark. `Then the eleventh day\r
-must have been a holiday?'\r
-\r
- `Of course it was,' said the Mock Turtle.\r
-\r
- `And how did you manage on the twelfth?' Alice went on eagerly.\r
-\r
- `That's enough about lessons,' the Gryphon interrupted in a\r
-very decided tone: `tell her something about the games now.'\r
-\r
-\r
-\r
- CHAPTER X\r
-\r
- The Lobster Quadrille\r
-\r
-\r
- The Mock Turtle sighed deeply, and drew the back of one flapper\r
-across his eyes. He looked at Alice, and tried to speak, but for\r
-a minute or two sobs choked his voice. `Same as if he had a bone\r
-in his throat,' said the Gryphon: and it set to work shaking him\r
-and punching him in the back. At last the Mock Turtle recovered\r
-his voice, and, with tears running down his cheeks, he went on\r
-again:--\r
-\r
- `You may not have lived much under the sea--' (`I haven't,'\r
-said Alice)--`and perhaps you were never even introduced to a lobster--'\r
-(Alice began to say `I once tasted--' but checked herself hastily,\r
-and said `No, never') `--so you can have no idea what a delightful\r
-thing a Lobster Quadrille is!'\r
-\r
- `No, indeed,' said Alice. `What sort of a dance is it?'\r
-\r
- `Why,' said the Gryphon, `you first form into a line along the\r
-sea-shore--'\r
-\r
- `Two lines!' cried the Mock Turtle. `Seals, turtles, salmon,\r
-and so on; then, when you've cleared all the jelly-fish out of\r
-the way--'\r
-\r
- `THAT generally takes some time,' interrupted the Gryphon.\r
-\r
- `--you advance twice--'\r
-\r
- `Each with a lobster as a partner!' cried the Gryphon.\r
-\r
- `Of course,' the Mock Turtle said: `advance twice, set to\r
-partners--'\r
-\r
- `--change lobsters, and retire in same order,' continued the\r
-Gryphon.\r
-\r
- `Then, you know,' the Mock Turtle went on, `you throw the--'\r
-\r
- `The lobsters!' shouted the Gryphon, with a bound into the air.\r
-\r
- `--as far out to sea as you can--'\r
-\r
- `Swim after them!' screamed the Gryphon.\r
-\r
- `Turn a somersault in the sea!' cried the Mock Turtle,\r
-capering wildly about.\r
-\r
- `Back to land again, and that's all the first figure,' said the\r
-Mock Turtle, suddenly dropping his voice; and the two creatures,\r
-who had been jumping about like mad things all this time, sat\r
-down again very sadly and quietly, and looked at Alice.\r
-\r
- `It must be a very pretty dance,' said Alice timidly.\r
-\r
- `Would you like to see a little of it?' said the Mock Turtle.\r
-\r
- `Very much indeed,' said Alice.\r
-\r
- `Come, let's try the first figure!' said the Mock Turtle to the\r
-Gryphon. `We can do without lobsters, you know. Which shall\r
-sing?'\r
-\r
- `Oh, YOU sing,' said the Gryphon. `I've forgotten the words.'\r
-\r
- So they began solemnly dancing round and round Alice, every now\r
-and then treading on her toes when they passed too close, and\r
-waving their forepaws to mark the time, while the Mock Turtle\r
-sang this, very slowly and sadly:--\r
-\r
-\r
-`"Will you walk a little faster?" said a whiting to a snail.\r
-"There's a porpoise close behind us, and he's treading on my\r
- tail.\r
-See how eagerly the lobsters and the turtles all advance!\r
-They are waiting on the shingle--will you come and join the\r
-dance?\r
-\r
-Will you, won't you, will you, won't you, will you join the\r
-dance?\r
-Will you, won't you, will you, won't you, won't you join the\r
-dance?\r
-\r
-\r
-"You can really have no notion how delightful it will be\r
-When they take us up and throw us, with the lobsters, out to\r
- sea!"\r
-But the snail replied "Too far, too far!" and gave a look\r
- askance--\r
-Said he thanked the whiting kindly, but he would not join the\r
- dance.\r
- Would not, could not, would not, could not, would not join\r
- the dance.\r
- Would not, could not, would not, could not, could not join\r
- the dance.\r
-\r
-`"What matters it how far we go?" his scaly friend replied.\r
-"There is another shore, you know, upon the other side.\r
-The further off from England the nearer is to France--\r
-Then turn not pale, beloved snail, but come and join the dance.\r
-\r
- Will you, won't you, will you, won't you, will you join the\r
- dance?\r
- Will you, won't you, will you, won't you, won't you join the\r
- dance?"'\r
-\r
-\r
-\r
- `Thank you, it's a very interesting dance to watch,' said\r
-Alice, feeling very glad that it was over at last: `and I do so\r
-like that curious song about the whiting!'\r
-\r
- `Oh, as to the whiting,' said the Mock Turtle, `they--you've\r
-seen them, of course?'\r
-\r
- `Yes,' said Alice, `I've often seen them at dinn--' she\r
-checked herself hastily.\r
-\r
- `I don't know where Dinn may be,' said the Mock Turtle, `but\r
-if you've seen them so often, of course you know what they're\r
-like.'\r
-\r
- `I believe so,' Alice replied thoughtfully. `They have their\r
-tails in their mouths--and they're all over crumbs.'\r
-\r
- `You're wrong about the crumbs,' said the Mock Turtle:\r
-`crumbs would all wash off in the sea. But they HAVE their tails\r
-in their mouths; and the reason is--' here the Mock Turtle\r
-yawned and shut his eyes.--`Tell her about the reason and all\r
-that,' he said to the Gryphon.\r
-\r
- `The reason is,' said the Gryphon, `that they WOULD go with\r
-the lobsters to the dance. So they got thrown out to sea. So\r
-they had to fall a long way. So they got their tails fast in\r
-their mouths. So they couldn't get them out again. That's all.'\r
-\r
- `Thank you,' said Alice, `it's very interesting. I never knew\r
-so much about a whiting before.'\r
-\r
- `I can tell you more than that, if you like,' said the\r
-Gryphon. `Do you know why it's called a whiting?'\r
-\r
- `I never thought about it,' said Alice. `Why?'\r
-\r
- `IT DOES THE BOOTS AND SHOES.' the Gryphon replied very\r
-solemnly.\r
-\r
- Alice was thoroughly puzzled. `Does the boots and shoes!' she\r
-repeated in a wondering tone.\r
-\r
- `Why, what are YOUR shoes done with?' said the Gryphon. `I\r
-mean, what makes them so shiny?'\r
-\r
- Alice looked down at them, and considered a little before she\r
-gave her answer. `They're done with blacking, I believe.'\r
-\r
- `Boots and shoes under the sea,' the Gryphon went on in a deep\r
-voice, `are done with a whiting. Now you know.'\r
-\r
- `And what are they made of?' Alice asked in a tone of great\r
-curiosity.\r
-\r
- `Soles and eels, of course,' the Gryphon replied rather\r
-impatiently: `any shrimp could have told you that.'\r
-\r
- `If I'd been the whiting,' said Alice, whose thoughts were\r
-still running on the song, `I'd have said to the porpoise, "Keep\r
-back, please: we don't want YOU with us!"'\r
-\r
- `They were obliged to have him with them,' the Mock Turtle\r
-said: `no wise fish would go anywhere without a porpoise.'\r
-\r
- `Wouldn't it really?' said Alice in a tone of great surprise.\r
-\r
- `Of course not,' said the Mock Turtle: `why, if a fish came\r
-to ME, and told me he was going a journey, I should say "With\r
-what porpoise?"'\r
-\r
- `Don't you mean "purpose"?' said Alice.\r
-\r
- `I mean what I say,' the Mock Turtle replied in an offended\r
-tone. And the Gryphon added `Come, let's hear some of YOUR\r
-adventures.'\r
-\r
- `I could tell you my adventures--beginning from this morning,'\r
-said Alice a little timidly: `but it's no use going back to\r
-yesterday, because I was a different person then.'\r
-\r
- `Explain all that,' said the Mock Turtle.\r
-\r
- `No, no! The adventures first,' said the Gryphon in an\r
-impatient tone: `explanations take such a dreadful time.'\r
-\r
- So Alice began telling them her adventures from the time when\r
-she first saw the White Rabbit. She was a little nervous about\r
-it just at first, the two creatures got so close to her, one on\r
-each side, and opened their eyes and mouths so VERY wide, but she\r
-gained courage as she went on. Her listeners were perfectly\r
-quiet till she got to the part about her repeating `YOU ARE OLD,\r
-FATHER WILLIAM,' to the Caterpillar, and the words all coming\r
-different, and then the Mock Turtle drew a long breath, and said\r
-`That's very curious.'\r
-\r
- `It's all about as curious as it can be,' said the Gryphon.\r
-\r
- `It all came different!' the Mock Turtle repeated\r
-thoughtfully. `I should like to hear her try and repeat\r
-something now. Tell her to begin.' He looked at the Gryphon as\r
-if he thought it had some kind of authority over Alice.\r
-\r
- `Stand up and repeat "'TIS THE VOICE OF THE SLUGGARD,"' said\r
-the Gryphon.\r
-\r
- `How the creatures order one about, and make one repeat\r
-lessons!' thought Alice; `I might as well be at school at once.'\r
-However, she got up, and began to repeat it, but her head was so\r
-full of the Lobster Quadrille, that she hardly knew what she was\r
-saying, and the words came very queer indeed:--\r
-\r
- `'Tis the voice of the Lobster; I heard him declare,\r
- "You have baked me too brown, I must sugar my hair."\r
- As a duck with its eyelids, so he with his nose\r
- Trims his belt and his buttons, and turns out his toes.'\r
-\r
- [later editions continued as follows\r
- When the sands are all dry, he is gay as a lark,\r
- And will talk in contemptuous tones of the Shark,\r
- But, when the tide rises and sharks are around,\r
- His voice has a timid and tremulous sound.]\r
-\r
- `That's different from what I used to say when I was a child,'\r
-said the Gryphon.\r
-\r
- `Well, I never heard it before,' said the Mock Turtle; `but it\r
-sounds uncommon nonsense.'\r
-\r
- Alice said nothing; she had sat down with her face in her\r
-hands, wondering if anything would EVER happen in a natural way\r
-again.\r
-\r
- `I should like to have it explained,' said the Mock Turtle.\r
-\r
- `She can't explain it,' said the Gryphon hastily. `Go on with\r
-the next verse.'\r
-\r
- `But about his toes?' the Mock Turtle persisted. `How COULD\r
-he turn them out with his nose, you know?'\r
-\r
- `It's the first position in dancing.' Alice said; but was\r
-dreadfully puzzled by the whole thing, and longed to change the\r
-subject.\r
-\r
- `Go on with the next verse,' the Gryphon repeated impatiently:\r
-`it begins "I passed by his garden."'\r
-\r
- Alice did not dare to disobey, though she felt sure it would\r
-all come wrong, and she went on in a trembling voice:--\r
-\r
- `I passed by his garden, and marked, with one eye,\r
- How the Owl and the Panther were sharing a pie--'\r
-\r
- [later editions continued as follows\r
- The Panther took pie-crust, and gravy, and meat,\r
- While the Owl had the dish as its share of the treat.\r
- When the pie was all finished, the Owl, as a boon,\r
- Was kindly permitted to pocket the spoon:\r
- While the Panther received knife and fork with a growl,\r
- And concluded the banquet--]\r
-\r
- `What IS the use of repeating all that stuff,' the Mock Turtle\r
-interrupted, `if you don't explain it as you go on? It's by far\r
-the most confusing thing I ever heard!'\r
-\r
- `Yes, I think you'd better leave off,' said the Gryphon: and\r
-Alice was only too glad to do so.\r
-\r
- `Shall we try another figure of the Lobster Quadrille?' the\r
-Gryphon went on. `Or would you like the Mock Turtle to sing you\r
-a song?'\r
-\r
- `Oh, a song, please, if the Mock Turtle would be so kind,'\r
-Alice replied, so eagerly that the Gryphon said, in a rather\r
-offended tone, `Hm! No accounting for tastes! Sing her "Turtle\r
-Soup," will you, old fellow?'\r
-\r
- The Mock Turtle sighed deeply, and began, in a voice sometimes\r
-choked with sobs, to sing this:--\r
-\r
-\r
- `Beautiful Soup, so rich and green,\r
- Waiting in a hot tureen!\r
- Who for such dainties would not stoop?\r
- Soup of the evening, beautiful Soup!\r
- Soup of the evening, beautiful Soup!\r
- Beau--ootiful Soo--oop!\r
- Beau--ootiful Soo--oop!\r
- Soo--oop of the e--e--evening,\r
- Beautiful, beautiful Soup!\r
-\r
- `Beautiful Soup! Who cares for fish,\r
- Game, or any other dish?\r
- Who would not give all else for two p\r
- ennyworth only of beautiful Soup?\r
- Pennyworth only of beautiful Soup?\r
- Beau--ootiful Soo--oop!\r
- Beau--ootiful Soo--oop!\r
- Soo--oop of the e--e--evening,\r
- Beautiful, beauti--FUL SOUP!'\r
-\r
- `Chorus again!' cried the Gryphon, and the Mock Turtle had\r
-just begun to repeat it, when a cry of `The trial's beginning!'\r
-was heard in the distance.\r
-\r
- `Come on!' cried the Gryphon, and, taking Alice by the hand,\r
-it hurried off, without waiting for the end of the song.\r
-\r
- `What trial is it?' Alice panted as she ran; but the Gryphon\r
-only answered `Come on!' and ran the faster, while more and more\r
-faintly came, carried on the breeze that followed them, the\r
-melancholy words:--\r
-\r
- `Soo--oop of the e--e--evening,\r
- Beautiful, beautiful Soup!'\r
-\r
-\r
-\r
- CHAPTER XI\r
-\r
- Who Stole the Tarts?\r
-\r
-\r
- The King and Queen of Hearts were seated on their throne when\r
-they arrived, with a great crowd assembled about them--all sorts\r
-of little birds and beasts, as well as the whole pack of cards:\r
-the Knave was standing before them, in chains, with a soldier on\r
-each side to guard him; and near the King was the White Rabbit,\r
-with a trumpet in one hand, and a scroll of parchment in the\r
-other. In the very middle of the court was a table, with a large\r
-dish of tarts upon it: they looked so good, that it made Alice\r
-quite hungry to look at them--`I wish they'd get the trial done,'\r
-she thought, `and hand round the refreshments!' But there seemed\r
-to be no chance of this, so she began looking at everything about\r
-her, to pass away the time.\r
-\r
- Alice had never been in a court of justice before, but she had\r
-read about them in books, and she was quite pleased to find that\r
-she knew the name of nearly everything there. `That's the\r
-judge,' she said to herself, `because of his great wig.'\r
-\r
- The judge, by the way, was the King; and as he wore his crown\r
-over the wig, (look at the frontispiece if you want to see how he\r
-did it,) he did not look at all comfortable, and it was certainly\r
-not becoming.\r
-\r
- `And that's the jury-box,' thought Alice, `and those twelve\r
-creatures,' (she was obliged to say `creatures,' you see, because\r
-some of them were animals, and some were birds,) `I suppose they\r
-are the jurors.' She said this last word two or three times over\r
-to herself, being rather proud of it: for she thought, and\r
-rightly too, that very few little girls of her age knew the\r
-meaning of it at all. However, `jury-men' would have done just\r
-as well.\r
-\r
- The twelve jurors were all writing very busily on slates.\r
-`What are they doing?' Alice whispered to the Gryphon. `They\r
-can't have anything to put down yet, before the trial's begun.'\r
-\r
- `They're putting down their names,' the Gryphon whispered in\r
-reply, `for fear they should forget them before the end of the\r
-trial.'\r
-\r
- `Stupid things!' Alice began in a loud, indignant voice, but\r
-she stopped hastily, for the White Rabbit cried out, `Silence in\r
-the court!' and the King put on his spectacles and looked\r
-anxiously round, to make out who was talking.\r
-\r
- Alice could see, as well as if she were looking over their\r
-shoulders, that all the jurors were writing down `stupid things!'\r
-on their slates, and she could even make out that one of them\r
-didn't know how to spell `stupid,' and that he had to ask his\r
-neighbour to tell him. `A nice muddle their slates'll be in\r
-before the trial's over!' thought Alice.\r
-\r
- One of the jurors had a pencil that squeaked. This of course,\r
-Alice could not stand, and she went round the court and got\r
-behind him, and very soon found an opportunity of taking it\r
-away. She did it so quickly that the poor little juror (it was\r
-Bill, the Lizard) could not make out at all what had become of\r
-it; so, after hunting all about for it, he was obliged to write\r
-with one finger for the rest of the day; and this was of very\r
-little use, as it left no mark on the slate.\r
-\r
- `Herald, read the accusation!' said the King.\r
-\r
- On this the White Rabbit blew three blasts on the trumpet, and\r
-then unrolled the parchment scroll, and read as follows:--\r
-\r
- `The Queen of Hearts, she made some tarts,\r
- All on a summer day:\r
- The Knave of Hearts, he stole those tarts,\r
- And took them quite away!'\r
-\r
- `Consider your verdict,' the King said to the jury.\r
-\r
- `Not yet, not yet!' the Rabbit hastily interrupted. `There's\r
-a great deal to come before that!'\r
-\r
- `Call the first witness,' said the King; and the White Rabbit\r
-blew three blasts on the trumpet, and called out, `First\r
-witness!'\r
-\r
- The first witness was the Hatter. He came in with a teacup in\r
-one hand and a piece of bread-and-butter in the other. `I beg\r
-pardon, your Majesty,' he began, `for bringing these in: but I\r
-hadn't quite finished my tea when I was sent for.'\r
-\r
- `You ought to have finished,' said the King. `When did you\r
-begin?'\r
-\r
- The Hatter looked at the March Hare, who had followed him into\r
-the court, arm-in-arm with the Dormouse. `Fourteenth of March, I\r
-think it was,' he said.\r
-\r
- `Fifteenth,' said the March Hare.\r
-\r
- `Sixteenth,' added the Dormouse.\r
-\r
- `Write that down,' the King said to the jury, and the jury\r
-eagerly wrote down all three dates on their slates, and then\r
-added them up, and reduced the answer to shillings and pence.\r
-\r
- `Take off your hat,' the King said to the Hatter.\r
-\r
- `It isn't mine,' said the Hatter.\r
-\r
- `Stolen!' the King exclaimed, turning to the jury, who\r
-instantly made a memorandum of the fact.\r
-\r
- `I keep them to sell,' the Hatter added as an explanation;\r
-`I've none of my own. I'm a hatter.'\r
-\r
- Here the Queen put on her spectacles, and began staring at the\r
-Hatter, who turned pale and fidgeted.\r
-\r
- `Give your evidence,' said the King; `and don't be nervous, or\r
-I'll have you executed on the spot.'\r
-\r
- This did not seem to encourage the witness at all: he kept\r
-shifting from one foot to the other, looking uneasily at the\r
-Queen, and in his confusion he bit a large piece out of his\r
-teacup instead of the bread-and-butter.\r
-\r
- Just at this moment Alice felt a very curious sensation, which\r
-puzzled her a good deal until she made out what it was: she was\r
-beginning to grow larger again, and she thought at first she\r
-would get up and leave the court; but on second thoughts she\r
-decided to remain where she was as long as there was room for\r
-her.\r
-\r
- `I wish you wouldn't squeeze so.' said the Dormouse, who was\r
-sitting next to her. `I can hardly breathe.'\r
-\r
- `I can't help it,' said Alice very meekly: `I'm growing.'\r
-\r
- `You've no right to grow here,' said the Dormouse.\r
-\r
- `Don't talk nonsense,' said Alice more boldly: `you know\r
-you're growing too.'\r
-\r
- `Yes, but I grow at a reasonable pace,' said the Dormouse:\r
-`not in that ridiculous fashion.' And he got up very sulkily\r
-and crossed over to the other side of the court.\r
-\r
- All this time the Queen had never left off staring at the\r
-Hatter, and, just as the Dormouse crossed the court, she said to\r
-one of the officers of the court, `Bring me the list of the\r
-singers in the last concert!' on which the wretched Hatter\r
-trembled so, that he shook both his shoes off.\r
-\r
- `Give your evidence,' the King repeated angrily, `or I'll have\r
-you executed, whether you're nervous or not.'\r
-\r
- `I'm a poor man, your Majesty,' the Hatter began, in a\r
-trembling voice, `--and I hadn't begun my tea--not above a week\r
-or so--and what with the bread-and-butter getting so thin--and\r
-the twinkling of the tea--'\r
-\r
- `The twinkling of the what?' said the King.\r
-\r
- `It began with the tea,' the Hatter replied.\r
-\r
- `Of course twinkling begins with a T!' said the King sharply.\r
-`Do you take me for a dunce? Go on!'\r
-\r
- `I'm a poor man,' the Hatter went on, `and most things\r
-twinkled after that--only the March Hare said--'\r
-\r
- `I didn't!' the March Hare interrupted in a great hurry.\r
-\r
- `You did!' said the Hatter.\r
-\r
- `I deny it!' said the March Hare.\r
-\r
- `He denies it,' said the King: `leave out that part.'\r
-\r
- `Well, at any rate, the Dormouse said--' the Hatter went on,\r
-looking anxiously round to see if he would deny it too: but the\r
-Dormouse denied nothing, being fast asleep.\r
-\r
- `After that,' continued the Hatter, `I cut some more bread-\r
-and-butter--'\r
-\r
- `But what did the Dormouse say?' one of the jury asked.\r
-\r
- `That I can't remember,' said the Hatter.\r
-\r
- `You MUST remember,' remarked the King, `or I'll have you\r
-executed.'\r
-\r
- The miserable Hatter dropped his teacup and bread-and-butter,\r
-and went down on one knee. `I'm a poor man, your Majesty,' he\r
-began.\r
-\r
- `You're a very poor speaker,' said the King.\r
-\r
- Here one of the guinea-pigs cheered, and was immediately\r
-suppressed by the officers of the court. (As that is rather a\r
-hard word, I will just explain to you how it was done. They had\r
-a large canvas bag, which tied up at the mouth with strings:\r
-into this they slipped the guinea-pig, head first, and then sat\r
-upon it.)\r
-\r
- `I'm glad I've seen that done,' thought Alice. `I've so often\r
-read in the newspapers, at the end of trials, "There was some\r
-attempts at applause, which was immediately suppressed by the\r
-officers of the court," and I never understood what it meant\r
-till now.'\r
-\r
- `If that's all you know about it, you may stand down,'\r
-continued the King.\r
-\r
- `I can't go no lower,' said the Hatter: `I'm on the floor, as\r
-it is.'\r
-\r
- `Then you may SIT down,' the King replied.\r
-\r
- Here the other guinea-pig cheered, and was suppressed.\r
-\r
- `Come, that finished the guinea-pigs!' thought Alice. `Now we\r
-shall get on better.'\r
-\r
- `I'd rather finish my tea,' said the Hatter, with an anxious\r
-look at the Queen, who was reading the list of singers.\r
-\r
- `You may go,' said the King, and the Hatter hurriedly left the\r
-court, without even waiting to put his shoes on.\r
-\r
- `--and just take his head off outside,' the Queen added to one\r
-of the officers: but the Hatter was out of sight before the\r
-officer could get to the door.\r
-\r
- `Call the next witness!' said the King.\r
-\r
- The next witness was the Duchess's cook. She carried the\r
-pepper-box in her hand, and Alice guessed who it was, even before\r
-she got into the court, by the way the people near the door began\r
-sneezing all at once.\r
-\r
- `Give your evidence,' said the King.\r
-\r
- `Shan't,' said the cook.\r
-\r
- The King looked anxiously at the White Rabbit, who said in a\r
-low voice, `Your Majesty must cross-examine THIS witness.'\r
-\r
- `Well, if I must, I must,' the King said, with a melancholy\r
-air, and, after folding his arms and frowning at the cook till\r
-his eyes were nearly out of sight, he said in a deep voice, `What\r
-are tarts made of?'\r
-\r
- `Pepper, mostly,' said the cook.\r
-\r
- `Treacle,' said a sleepy voice behind her.\r
-\r
- `Collar that Dormouse,' the Queen shrieked out. `Behead that\r
-Dormouse! Turn that Dormouse out of court! Suppress him! Pinch\r
-him! Off with his whiskers!'\r
-\r
- For some minutes the whole court was in confusion, getting the\r
-Dormouse turned out, and, by the time they had settled down\r
-again, the cook had disappeared.\r
-\r
- `Never mind!' said the King, with an air of great relief.\r
-`Call the next witness.' And he added in an undertone to the\r
-Queen, `Really, my dear, YOU must cross-examine the next witness.\r
-It quite makes my forehead ache!'\r
-\r
- Alice watched the White Rabbit as he fumbled over the list,\r
-feeling very curious to see what the next witness would be like,\r
-`--for they haven't got much evidence YET,' she said to herself.\r
-Imagine her surprise, when the White Rabbit read out, at the top\r
-of his shrill little voice, the name `Alice!'\r
-\r
-\r
-\r
- CHAPTER XII\r
-\r
- Alice's Evidence\r
-\r
-\r
- `Here!' cried Alice, quite forgetting in the flurry of the\r
-moment how large she had grown in the last few minutes, and she\r
-jumped up in such a hurry that she tipped over the jury-box with\r
-the edge of her skirt, upsetting all the jurymen on to the heads\r
-of the crowd below, and there they lay sprawling about, reminding\r
-her very much of a globe of goldfish she had accidentally upset\r
-the week before.\r
-\r
- `Oh, I BEG your pardon!' she exclaimed in a tone of great\r
-dismay, and began picking them up again as quickly as she could,\r
-for the accident of the goldfish kept running in her head, and\r
-she had a vague sort of idea that they must be collected at once\r
-and put back into the jury-box, or they would die.\r
-\r
- `The trial cannot proceed,' said the King in a very grave\r
-voice, `until all the jurymen are back in their proper places--\r
-ALL,' he repeated with great emphasis, looking hard at Alice as\r
-he said do.\r
-\r
- Alice looked at the jury-box, and saw that, in her haste, she\r
-had put the Lizard in head downwards, and the poor little thing\r
-was waving its tail about in a melancholy way, being quite unable\r
-to move. She soon got it out again, and put it right; `not that\r
-it signifies much,' she said to herself; `I should think it\r
-would be QUITE as much use in the trial one way up as the other.'\r
-\r
- As soon as the jury had a little recovered from the shock of\r
-being upset, and their slates and pencils had been found and\r
-handed back to them, they set to work very diligently to write\r
-out a history of the accident, all except the Lizard, who seemed\r
-too much overcome to do anything but sit with its mouth open,\r
-gazing up into the roof of the court.\r
-\r
- `What do you know about this business?' the King said to\r
-Alice.\r
-\r
- `Nothing,' said Alice.\r
-\r
- `Nothing WHATEVER?' persisted the King.\r
-\r
- `Nothing whatever,' said Alice.\r
-\r
- `That's very important,' the King said, turning to the jury.\r
-They were just beginning to write this down on their slates, when\r
-the White Rabbit interrupted: `UNimportant, your Majesty means,\r
-of course,' he said in a very respectful tone, but frowning and\r
-making faces at him as he spoke.\r
-\r
- `UNimportant, of course, I meant,' the King hastily said, and\r
-went on to himself in an undertone, `important--unimportant--\r
-unimportant--important--' as if he were trying which word\r
-sounded best.\r
-\r
- Some of the jury wrote it down `important,' and some\r
-`unimportant.' Alice could see this, as she was near enough to\r
-look over their slates; `but it doesn't matter a bit,' she\r
-thought to herself.\r
-\r
- At this moment the King, who had been for some time busily\r
-writing in his note-book, cackled out `Silence!' and read out\r
-from his book, `Rule Forty-two. ALL PERSONS MORE THAN A MILE\r
-HIGH TO LEAVE THE COURT.'\r
-\r
- Everybody looked at Alice.\r
-\r
- `I'M not a mile high,' said Alice.\r
-\r
- `You are,' said the King.\r
-\r
- `Nearly two miles high,' added the Queen.\r
-\r
- `Well, I shan't go, at any rate,' said Alice: `besides,\r
-that's not a regular rule: you invented it just now.'\r
-\r
- `It's the oldest rule in the book,' said the King.\r
-\r
- `Then it ought to be Number One,' said Alice.\r
-\r
- The King turned pale, and shut his note-book hastily.\r
-`Consider your verdict,' he said to the jury, in a low, trembling\r
-voice.\r
-\r
- `There's more evidence to come yet, please your Majesty,' said\r
-the White Rabbit, jumping up in a great hurry; `this paper has\r
-just been picked up.'\r
-\r
- `What's in it?' said the Queen.\r
-\r
- `I haven't opened it yet,' said the White Rabbit, `but it seems\r
-to be a letter, written by the prisoner to--to somebody.'\r
-\r
- `It must have been that,' said the King, `unless it was\r
-written to nobody, which isn't usual, you know.'\r
-\r
- `Who is it directed to?' said one of the jurymen.\r
-\r
- `It isn't directed at all,' said the White Rabbit; `in fact,\r
-there's nothing written on the OUTSIDE.' He unfolded the paper\r
-as he spoke, and added `It isn't a letter, after all: it's a set\r
-of verses.'\r
-\r
- `Are they in the prisoner's handwriting?' asked another of\r
-they jurymen.\r
-\r
- `No, they're not,' said the White Rabbit, `and that's the\r
-queerest thing about it.' (The jury all looked puzzled.)\r
-\r
- `He must have imitated somebody else's hand,' said the King.\r
-(The jury all brightened up again.)\r
-\r
- `Please your Majesty,' said the Knave, `I didn't write it, and\r
-they can't prove I did: there's no name signed at the end.'\r
-\r
- `If you didn't sign it,' said the King, `that only makes the\r
-matter worse. You MUST have meant some mischief, or else you'd\r
-have signed your name like an honest man.'\r
-\r
- There was a general clapping of hands at this: it was the\r
-first really clever thing the King had said that day.\r
-\r
- `That PROVES his guilt,' said the Queen.\r
-\r
- `It proves nothing of the sort!' said Alice. `Why, you don't\r
-even know what they're about!'\r
-\r
- `Read them,' said the King.\r
-\r
- The White Rabbit put on his spectacles. `Where shall I begin,\r
-please your Majesty?' he asked.\r
-\r
- `Begin at the beginning,' the King said gravely, `and go on\r
-till you come to the end: then stop.'\r
-\r
- These were the verses the White Rabbit read:--\r
-\r
- `They told me you had been to her,\r
- And mentioned me to him:\r
- She gave me a good character,\r
- But said I could not swim.\r
-\r
- He sent them word I had not gone\r
- (We know it to be true):\r
- If she should push the matter on,\r
- What would become of you?\r
-\r
- I gave her one, they gave him two,\r
- You gave us three or more;\r
- They all returned from him to you,\r
- Though they were mine before.\r
-\r
- If I or she should chance to be\r
- Involved in this affair,\r
- He trusts to you to set them free,\r
- Exactly as we were.\r
-\r
- My notion was that you had been\r
- (Before she had this fit)\r
- An obstacle that came between\r
- Him, and ourselves, and it.\r
-\r
- Don't let him know she liked them best,\r
- For this must ever be\r
- A secret, kept from all the rest,\r
- Between yourself and me.'\r
-\r
- `That's the most important piece of evidence we've heard yet,'\r
-said the King, rubbing his hands; `so now let the jury--'\r
-\r
- `If any one of them can explain it,' said Alice, (she had\r
-grown so large in the last few minutes that she wasn't a bit\r
-afraid of interrupting him,) `I'll give him sixpence. _I_ don't\r
-believe there's an atom of meaning in it.'\r
-\r
- The jury all wrote down on their slates, `SHE doesn't believe\r
-there's an atom of meaning in it,' but none of them attempted to\r
-explain the paper.\r
-\r
- `If there's no meaning in it,' said the King, `that saves a\r
-world of trouble, you know, as we needn't try to find any. And\r
-yet I don't know,' he went on, spreading out the verses on his\r
-knee, and looking at them with one eye; `I seem to see some\r
-meaning in them, after all. "--SAID I COULD NOT SWIM--" you\r
-can't swim, can you?' he added, turning to the Knave.\r
-\r
- The Knave shook his head sadly. `Do I look like it?' he said.\r
-(Which he certainly did NOT, being made entirely of cardboard.)\r
-\r
- `All right, so far,' said the King, and he went on muttering\r
-over the verses to himself: `"WE KNOW IT TO BE TRUE--" that's\r
-the jury, of course-- "I GAVE HER ONE, THEY GAVE HIM TWO--" why,\r
-that must be what he did with the tarts, you know--'\r
-\r
- `But, it goes on "THEY ALL RETURNED FROM HIM TO YOU,"' said\r
-Alice.\r
-\r
- `Why, there they are!' said the King triumphantly, pointing to\r
-the tarts on the table. `Nothing can be clearer than THAT.\r
-Then again--"BEFORE SHE HAD THIS FIT--" you never had fits, my\r
-dear, I think?' he said to the Queen.\r
-\r
- `Never!' said the Queen furiously, throwing an inkstand at the\r
-Lizard as she spoke. (The unfortunate little Bill had left off\r
-writing on his slate with one finger, as he found it made no\r
-mark; but he now hastily began again, using the ink, that was\r
-trickling down his face, as long as it lasted.)\r
-\r
- `Then the words don't FIT you,' said the King, looking round\r
-the court with a smile. There was a dead silence.\r
-\r
- `It's a pun!' the King added in an offended tone, and\r
-everybody laughed, `Let the jury consider their verdict,' the\r
-King said, for about the twentieth time that day.\r
-\r
- `No, no!' said the Queen. `Sentence first--verdict afterwards.'\r
-\r
- `Stuff and nonsense!' said Alice loudly. `The idea of having\r
-the sentence first!'\r
-\r
- `Hold your tongue!' said the Queen, turning purple.\r
-\r
- `I won't!' said Alice.\r
-\r
- `Off with her head!' the Queen shouted at the top of her voice.\r
-Nobody moved.\r
-\r
- `Who cares for you?' said Alice, (she had grown to her full\r
-size by this time.) `You're nothing but a pack of cards!'\r
-\r
- At this the whole pack rose up into the air, and came flying\r
-down upon her: she gave a little scream, half of fright and half\r
-of anger, and tried to beat them off, and found herself lying on\r
-the bank, with her head in the lap of her sister, who was gently\r
-brushing away some dead leaves that had fluttered down from the\r
-trees upon her face.\r
-\r
- `Wake up, Alice dear!' said her sister; `Why, what a long\r
-sleep you've had!'\r
-\r
- `Oh, I've had such a curious dream!' said Alice, and she told\r
-her sister, as well as she could remember them, all these strange\r
-Adventures of hers that you have just been reading about; and\r
-when she had finished, her sister kissed her, and said, `It WAS a\r
-curious dream, dear, certainly: but now run in to your tea; it's\r
-getting late.' So Alice got up and ran off, thinking while she\r
-ran, as well she might, what a wonderful dream it had been.\r
-\r
- But her sister sat still just as she left her, leaning her\r
-head on her hand, watching the setting sun, and thinking of\r
-little Alice and all her wonderful Adventures, till she too began\r
-dreaming after a fashion, and this was her dream:--\r
-\r
- First, she dreamed of little Alice herself, and once again the\r
-tiny hands were clasped upon her knee, and the bright eager eyes\r
-were looking up into hers--she could hear the very tones of her\r
-voice, and see that queer little toss of her head to keep back\r
-the wandering hair that WOULD always get into her eyes--and\r
-still as she listened, or seemed to listen, the whole place\r
-around her became alive the strange creatures of her little\r
-sister's dream.\r
-\r
- The long grass rustled at her feet as the White Rabbit hurried\r
-by--the frightened Mouse splashed his way through the\r
-neighbouring pool--she could hear the rattle of the teacups as\r
-the March Hare and his friends shared their never-ending meal,\r
-and the shrill voice of the Queen ordering off her unfortunate\r
-guests to execution--once more the pig-baby was sneezing on the\r
-Duchess's knee, while plates and dishes crashed around it--once\r
-more the shriek of the Gryphon, the squeaking of the Lizard's\r
-slate-pencil, and the choking of the suppressed guinea-pigs,\r
-filled the air, mixed up with the distant sobs of the miserable\r
-Mock Turtle.\r
-\r
- So she sat on, with closed eyes, and half believed herself in\r
-Wonderland, though she knew she had but to open them again, and\r
-all would change to dull reality--the grass would be only\r
-rustling in the wind, and the pool rippling to the waving of the\r
-reeds--the rattling teacups would change to tinkling sheep-\r
-bells, and the Queen's shrill cries to the voice of the shepherd\r
-boy--and the sneeze of the baby, the shriek of the Gryphon, and\r
-all thy other queer noises, would change (she knew) to the\r
-confused clamour of the busy farm-yard--while the lowing of the\r
-cattle in the distance would take the place of the Mock Turtle's\r
-heavy sobs.\r
-\r
- Lastly, she pictured to herself how this same little sister of\r
-hers would, in the after-time, be herself a grown woman; and how\r
-she would keep, through all her riper years, the simple and\r
-loving heart of her childhood: and how she would gather about\r
-her other little children, and make THEIR eyes bright and eager\r
-with many a strange tale, perhaps even with the dream of\r
-Wonderland of long ago: and how she would feel with all their\r
-simple sorrows, and find a pleasure in all their simple joys,\r
-remembering her own child-life, and the happy summer days.\r
-\r
- THE END\r
-\1a
\ No newline at end of file
+++ /dev/null
- AS YOU LIKE IT
-
-
- DRAMATIS PERSONAE
-
-
-DUKE SENIOR living in banishment.
-
-DUKE FREDERICK his brother, an usurper of his dominions.
-
-
-AMIENS |
- | lords attending on the banished duke.
-JAQUES |
-
-
-LE BEAU a courtier attending upon Frederick.
-
-CHARLES wrestler to Frederick.
-
-
-OLIVER |
- |
-JAQUES (JAQUES DE BOYS:) | sons of Sir Rowland de Boys.
- |
-ORLANDO |
-
-
-ADAM |
- | servants to Oliver.
-DENNIS |
-
-
-TOUCHSTONE a clown.
-
-SIR OLIVER MARTEXT a vicar.
-
-
-CORIN |
- | shepherds.
-SILVIUS |
-
-
-WILLIAM a country fellow in love with Audrey.
-
- A person representing HYMEN. (HYMEN:)
-
-ROSALIND daughter to the banished duke.
-
-CELIA daughter to Frederick.
-
-PHEBE a shepherdess.
-
-AUDREY a country wench.
-
- Lords, pages, and attendants, &c.
- (Forester:)
- (A Lord:)
- (First Lord:)
- (Second Lord:)
- (First Page:)
- (Second Page:)
-
-
-SCENE Oliver's house; Duke Frederick's court; and the
- Forest of Arden.
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT I
-
-
-
-SCENE I Orchard of Oliver's house.
-
-
- [Enter ORLANDO and ADAM]
-
-ORLANDO As I remember, Adam, it was upon this fashion
- bequeathed me by will but poor a thousand crowns,
- and, as thou sayest, charged my brother, on his
- blessing, to breed me well: and there begins my
- sadness. My brother Jaques he keeps at school, and
- report speaks goldenly of his profit: for my part,
- he keeps me rustically at home, or, to speak more
- properly, stays me here at home unkept; for call you
- that keeping for a gentleman of my birth, that
- differs not from the stalling of an ox? His horses
- are bred better; for, besides that they are fair
- with their feeding, they are taught their manage,
- and to that end riders dearly hired: but I, his
- brother, gain nothing under him but growth; for the
- which his animals on his dunghills are as much
- bound to him as I. Besides this nothing that he so
- plentifully gives me, the something that nature gave
- me his countenance seems to take from me: he lets
- me feed with his hinds, bars me the place of a
- brother, and, as much as in him lies, mines my
- gentility with my education. This is it, Adam, that
- grieves me; and the spirit of my father, which I
- think is within me, begins to mutiny against this
- servitude: I will no longer endure it, though yet I
- know no wise remedy how to avoid it.
-
-ADAM Yonder comes my master, your brother.
-
-ORLANDO Go apart, Adam, and thou shalt hear how he will
- shake me up.
-
- [Enter OLIVER]
-
-OLIVER Now, sir! what make you here?
-
-ORLANDO Nothing: I am not taught to make any thing.
-
-OLIVER What mar you then, sir?
-
-ORLANDO Marry, sir, I am helping you to mar that which God
- made, a poor unworthy brother of yours, with idleness.
-
-OLIVER Marry, sir, be better employed, and be naught awhile.
-
-ORLANDO Shall I keep your hogs and eat husks with them?
- What prodigal portion have I spent, that I should
- come to such penury?
-
-OLIVER Know you where your are, sir?
-
-ORLANDO O, sir, very well; here in your orchard.
-
-OLIVER Know you before whom, sir?
-
-ORLANDO Ay, better than him I am before knows me. I know
- you are my eldest brother; and, in the gentle
- condition of blood, you should so know me. The
- courtesy of nations allows you my better, in that
- you are the first-born; but the same tradition
- takes not away my blood, were there twenty brothers
- betwixt us: I have as much of my father in me as
- you; albeit, I confess, your coming before me is
- nearer to his reverence.
-
-OLIVER What, boy!
-
-ORLANDO Come, come, elder brother, you are too young in this.
-
-OLIVER Wilt thou lay hands on me, villain?
-
-ORLANDO I am no villain; I am the youngest son of Sir
- Rowland de Boys; he was my father, and he is thrice
- a villain that says such a father begot villains.
- Wert thou not my brother, I would not take this hand
- from thy throat till this other had pulled out thy
- tongue for saying so: thou hast railed on thyself.
-
-ADAM Sweet masters, be patient: for your father's
- remembrance, be at accord.
-
-OLIVER Let me go, I say.
-
-ORLANDO I will not, till I please: you shall hear me. My
- father charged you in his will to give me good
- education: you have trained me like a peasant,
- obscuring and hiding from me all gentleman-like
- qualities. The spirit of my father grows strong in
- me, and I will no longer endure it: therefore allow
- me such exercises as may become a gentleman, or
- give me the poor allottery my father left me by
- testament; with that I will go buy my fortunes.
-
-OLIVER And what wilt thou do? beg, when that is spent?
- Well, sir, get you in: I will not long be troubled
- with you; you shall have some part of your will: I
- pray you, leave me.
-
-ORLANDO I will no further offend you than becomes me for my good.
-
-OLIVER Get you with him, you old dog.
-
-ADAM Is 'old dog' my reward? Most true, I have lost my
- teeth in your service. God be with my old master!
- he would not have spoke such a word.
-
- [Exeunt ORLANDO and ADAM]
-
-OLIVER Is it even so? begin you to grow upon me? I will
- physic your rankness, and yet give no thousand
- crowns neither. Holla, Dennis!
-
- [Enter DENNIS]
-
-DENNIS Calls your worship?
-
-OLIVER Was not Charles, the duke's wrestler, here to speak with me?
-
-DENNIS So please you, he is here at the door and importunes
- access to you.
-
-OLIVER Call him in.
-
- [Exit DENNIS]
-
- 'Twill be a good way; and to-morrow the wrestling is.
-
- [Enter CHARLES]
-
-CHARLES Good morrow to your worship.
-
-OLIVER Good Monsieur Charles, what's the new news at the
- new court?
-
-CHARLES There's no news at the court, sir, but the old news:
- that is, the old duke is banished by his younger
- brother the new duke; and three or four loving lords
- have put themselves into voluntary exile with him,
- whose lands and revenues enrich the new duke;
- therefore he gives them good leave to wander.
-
-OLIVER Can you tell if Rosalind, the duke's daughter, be
- banished with her father?
-
-CHARLES O, no; for the duke's daughter, her cousin, so loves
- her, being ever from their cradles bred together,
- that she would have followed her exile, or have died
- to stay behind her. She is at the court, and no
- less beloved of her uncle than his own daughter; and
- never two ladies loved as they do.
-
-OLIVER Where will the old duke live?
-
-CHARLES They say he is already in the forest of Arden, and
- a many merry men with him; and there they live like
- the old Robin Hood of England: they say many young
- gentlemen flock to him every day, and fleet the time
- carelessly, as they did in the golden world.
-
-OLIVER What, you wrestle to-morrow before the new duke?
-
-CHARLES Marry, do I, sir; and I came to acquaint you with a
- matter. I am given, sir, secretly to understand
- that your younger brother Orlando hath a disposition
- to come in disguised against me to try a fall.
- To-morrow, sir, I wrestle for my credit; and he that
- escapes me without some broken limb shall acquit him
- well. Your brother is but young and tender; and,
- for your love, I would be loath to foil him, as I
- must, for my own honour, if he come in: therefore,
- out of my love to you, I came hither to acquaint you
- withal, that either you might stay him from his
- intendment or brook such disgrace well as he shall
- run into, in that it is a thing of his own search
- and altogether against my will.
-
-OLIVER Charles, I thank thee for thy love to me, which
- thou shalt find I will most kindly requite. I had
- myself notice of my brother's purpose herein and
- have by underhand means laboured to dissuade him from
- it, but he is resolute. I'll tell thee, Charles:
- it is the stubbornest young fellow of France, full
- of ambition, an envious emulator of every man's
- good parts, a secret and villanous contriver against
- me his natural brother: therefore use thy
- discretion; I had as lief thou didst break his neck
- as his finger. And thou wert best look to't; for if
- thou dost him any slight disgrace or if he do not
- mightily grace himself on thee, he will practise
- against thee by poison, entrap thee by some
- treacherous device and never leave thee till he
- hath ta'en thy life by some indirect means or other;
- for, I assure thee, and almost with tears I speak
- it, there is not one so young and so villanous this
- day living. I speak but brotherly of him; but
- should I anatomize him to thee as he is, I must
- blush and weep and thou must look pale and wonder.
-
-CHARLES I am heartily glad I came hither to you. If he come
- to-morrow, I'll give him his payment: if ever he go
- alone again, I'll never wrestle for prize more: and
- so God keep your worship!
-
-OLIVER Farewell, good Charles.
-
- [Exit CHARLES]
-
- Now will I stir this gamester: I hope I shall see
- an end of him; for my soul, yet I know not why,
- hates nothing more than he. Yet he's gentle, never
- schooled and yet learned, full of noble device, of
- all sorts enchantingly beloved, and indeed so much
- in the heart of the world, and especially of my own
- people, who best know him, that I am altogether
- misprised: but it shall not be so long; this
- wrestler shall clear all: nothing remains but that
- I kindle the boy thither; which now I'll go about.
-
- [Exit]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT I
-
-
-
-SCENE II Lawn before the Duke's palace.
-
-
- [Enter CELIA and ROSALIND]
-
-CELIA I pray thee, Rosalind, sweet my coz, be merry.
-
-ROSALIND Dear Celia, I show more mirth than I am mistress of;
- and would you yet I were merrier? Unless you could
- teach me to forget a banished father, you must not
- learn me how to remember any extraordinary pleasure.
-
-CELIA Herein I see thou lovest me not with the full weight
- that I love thee. If my uncle, thy banished father,
- had banished thy uncle, the duke my father, so thou
- hadst been still with me, I could have taught my
- love to take thy father for mine: so wouldst thou,
- if the truth of thy love to me were so righteously
- tempered as mine is to thee.
-
-ROSALIND Well, I will forget the condition of my estate, to
- rejoice in yours.
-
-CELIA You know my father hath no child but I, nor none is
- like to have: and, truly, when he dies, thou shalt
- be his heir, for what he hath taken away from thy
- father perforce, I will render thee again in
- affection; by mine honour, I will; and when I break
- that oath, let me turn monster: therefore, my
- sweet Rose, my dear Rose, be merry.
-
-ROSALIND From henceforth I will, coz, and devise sports. Let
- me see; what think you of falling in love?
-
-CELIA Marry, I prithee, do, to make sport withal: but
- love no man in good earnest; nor no further in sport
- neither than with safety of a pure blush thou mayst
- in honour come off again.
-
-ROSALIND What shall be our sport, then?
-
-CELIA Let us sit and mock the good housewife Fortune from
- her wheel, that her gifts may henceforth be bestowed equally.
-
-ROSALIND I would we could do so, for her benefits are
- mightily misplaced, and the bountiful blind woman
- doth most mistake in her gifts to women.
-
-CELIA 'Tis true; for those that she makes fair she scarce
- makes honest, and those that she makes honest she
- makes very ill-favouredly.
-
-ROSALIND Nay, now thou goest from Fortune's office to
- Nature's: Fortune reigns in gifts of the world,
- not in the lineaments of Nature.
-
- [Enter TOUCHSTONE]
-
-CELIA No? when Nature hath made a fair creature, may she
- not by Fortune fall into the fire? Though Nature
- hath given us wit to flout at Fortune, hath not
- Fortune sent in this fool to cut off the argument?
-
-ROSALIND Indeed, there is Fortune too hard for Nature, when
- Fortune makes Nature's natural the cutter-off of
- Nature's wit.
-
-CELIA Peradventure this is not Fortune's work neither, but
- Nature's; who perceiveth our natural wits too dull
- to reason of such goddesses and hath sent this
- natural for our whetstone; for always the dulness of
- the fool is the whetstone of the wits. How now,
- wit! whither wander you?
-
-TOUCHSTONE Mistress, you must come away to your father.
-
-CELIA Were you made the messenger?
-
-TOUCHSTONE No, by mine honour, but I was bid to come for you.
-
-ROSALIND Where learned you that oath, fool?
-
-TOUCHSTONE Of a certain knight that swore by his honour they
- were good pancakes and swore by his honour the
- mustard was naught: now I'll stand to it, the
- pancakes were naught and the mustard was good, and
- yet was not the knight forsworn.
-
-CELIA How prove you that, in the great heap of your
- knowledge?
-
-ROSALIND Ay, marry, now unmuzzle your wisdom.
-
-TOUCHSTONE Stand you both forth now: stroke your chins, and
- swear by your beards that I am a knave.
-
-CELIA By our beards, if we had them, thou art.
-
-TOUCHSTONE By my knavery, if I had it, then I were; but if you
- swear by that that is not, you are not forsworn: no
- more was this knight swearing by his honour, for he
- never had any; or if he had, he had sworn it away
- before ever he saw those pancakes or that mustard.
-
-CELIA Prithee, who is't that thou meanest?
-
-TOUCHSTONE One that old Frederick, your father, loves.
-
-CELIA My father's love is enough to honour him: enough!
- speak no more of him; you'll be whipped for taxation
- one of these days.
-
-TOUCHSTONE The more pity, that fools may not speak wisely what
- wise men do foolishly.
-
-CELIA By my troth, thou sayest true; for since the little
- wit that fools have was silenced, the little foolery
- that wise men have makes a great show. Here comes
- Monsieur Le Beau.
-
-ROSALIND With his mouth full of news.
-
-CELIA Which he will put on us, as pigeons feed their young.
-
-ROSALIND Then shall we be news-crammed.
-
-CELIA All the better; we shall be the more marketable.
-
- [Enter LE BEAU]
-
- Bon jour, Monsieur Le Beau: what's the news?
-
-LE BEAU Fair princess, you have lost much good sport.
-
-CELIA Sport! of what colour?
-
-LE BEAU What colour, madam! how shall I answer you?
-
-ROSALIND As wit and fortune will.
-
-TOUCHSTONE Or as the Destinies decree.
-
-CELIA Well said: that was laid on with a trowel.
-
-TOUCHSTONE Nay, if I keep not my rank,--
-
-ROSALIND Thou losest thy old smell.
-
-LE BEAU You amaze me, ladies: I would have told you of good
- wrestling, which you have lost the sight of.
-
-ROSALIND You tell us the manner of the wrestling.
-
-LE BEAU I will tell you the beginning; and, if it please
- your ladyships, you may see the end; for the best is
- yet to do; and here, where you are, they are coming
- to perform it.
-
-CELIA Well, the beginning, that is dead and buried.
-
-LE BEAU There comes an old man and his three sons,--
-
-CELIA I could match this beginning with an old tale.
-
-LE BEAU Three proper young men, of excellent growth and presence.
-
-ROSALIND With bills on their necks, 'Be it known unto all men
- by these presents.'
-
-LE BEAU The eldest of the three wrestled with Charles, the
- duke's wrestler; which Charles in a moment threw him
- and broke three of his ribs, that there is little
- hope of life in him: so he served the second, and
- so the third. Yonder they lie; the poor old man,
- their father, making such pitiful dole over them
- that all the beholders take his part with weeping.
-
-ROSALIND Alas!
-
-TOUCHSTONE But what is the sport, monsieur, that the ladies
- have lost?
-
-LE BEAU Why, this that I speak of.
-
-TOUCHSTONE Thus men may grow wiser every day: it is the first
- time that ever I heard breaking of ribs was sport
- for ladies.
-
-CELIA Or I, I promise thee.
-
-ROSALIND But is there any else longs to see this broken music
- in his sides? is there yet another dotes upon
- rib-breaking? Shall we see this wrestling, cousin?
-
-LE BEAU You must, if you stay here; for here is the place
- appointed for the wrestling, and they are ready to
- perform it.
-
-CELIA Yonder, sure, they are coming: let us now stay and see it.
-
- [Flourish. Enter DUKE FREDERICK, Lords, ORLANDO,
- CHARLES, and Attendants]
-
-DUKE FREDERICK Come on: since the youth will not be entreated, his
- own peril on his forwardness.
-
-ROSALIND Is yonder the man?
-
-LE BEAU Even he, madam.
-
-CELIA Alas, he is too young! yet he looks successfully.
-
-DUKE FREDERICK How now, daughter and cousin! are you crept hither
- to see the wrestling?
-
-ROSALIND Ay, my liege, so please you give us leave.
-
-DUKE FREDERICK You will take little delight in it, I can tell you;
- there is such odds in the man. In pity of the
- challenger's youth I would fain dissuade him, but he
- will not be entreated. Speak to him, ladies; see if
- you can move him.
-
-CELIA Call him hither, good Monsieur Le Beau.
-
-DUKE FREDERICK Do so: I'll not be by.
-
-LE BEAU Monsieur the challenger, the princesses call for you.
-
-ORLANDO I attend them with all respect and duty.
-
-ROSALIND Young man, have you challenged Charles the wrestler?
-
-ORLANDO No, fair princess; he is the general challenger: I
- come but in, as others do, to try with him the
- strength of my youth.
-
-CELIA Young gentleman, your spirits are too bold for your
- years. You have seen cruel proof of this man's
- strength: if you saw yourself with your eyes or
- knew yourself with your judgment, the fear of your
- adventure would counsel you to a more equal
- enterprise. We pray you, for your own sake, to
- embrace your own safety and give over this attempt.
-
-ROSALIND Do, young sir; your reputation shall not therefore
- be misprised: we will make it our suit to the duke
- that the wrestling might not go forward.
-
-ORLANDO I beseech you, punish me not with your hard
- thoughts; wherein I confess me much guilty, to deny
- so fair and excellent ladies any thing. But let
- your fair eyes and gentle wishes go with me to my
- trial: wherein if I be foiled, there is but one
- shamed that was never gracious; if killed, but one
- dead that was willing to be so: I shall do my
- friends no wrong, for I have none to lament me, the
- world no injury, for in it I have nothing; only in
- the world I fill up a place, which may be better
- supplied when I have made it empty.
-
-ROSALIND The little strength that I have, I would it were with you.
-
-CELIA And mine, to eke out hers.
-
-ROSALIND Fare you well: pray heaven I be deceived in you!
-
-CELIA Your heart's desires be with you!
-
-CHARLES Come, where is this young gallant that is so
- desirous to lie with his mother earth?
-
-ORLANDO Ready, sir; but his will hath in it a more modest working.
-
-DUKE FREDERICK You shall try but one fall.
-
-CHARLES No, I warrant your grace, you shall not entreat him
- to a second, that have so mightily persuaded him
- from a first.
-
-ORLANDO An you mean to mock me after, you should not have
- mocked me before: but come your ways.
-
-ROSALIND Now Hercules be thy speed, young man!
-
-CELIA I would I were invisible, to catch the strong
- fellow by the leg.
-
- [They wrestle]
-
-ROSALIND O excellent young man!
-
-CELIA If I had a thunderbolt in mine eye, I can tell who
- should down.
-
- [Shout. CHARLES is thrown]
-
-DUKE FREDERICK No more, no more.
-
-ORLANDO Yes, I beseech your grace: I am not yet well breathed.
-
-DUKE FREDERICK How dost thou, Charles?
-
-LE BEAU He cannot speak, my lord.
-
-DUKE FREDERICK Bear him away. What is thy name, young man?
-
-ORLANDO Orlando, my liege; the youngest son of Sir Rowland de Boys.
-
-DUKE FREDERICK I would thou hadst been son to some man else:
- The world esteem'd thy father honourable,
- But I did find him still mine enemy:
- Thou shouldst have better pleased me with this deed,
- Hadst thou descended from another house.
- But fare thee well; thou art a gallant youth:
- I would thou hadst told me of another father.
-
- [Exeunt DUKE FREDERICK, train, and LE BEAU]
-
-CELIA Were I my father, coz, would I do this?
-
-ORLANDO I am more proud to be Sir Rowland's son,
- His youngest son; and would not change that calling,
- To be adopted heir to Frederick.
-
-ROSALIND My father loved Sir Rowland as his soul,
- And all the world was of my father's mind:
- Had I before known this young man his son,
- I should have given him tears unto entreaties,
- Ere he should thus have ventured.
-
-CELIA Gentle cousin,
- Let us go thank him and encourage him:
- My father's rough and envious disposition
- Sticks me at heart. Sir, you have well deserved:
- If you do keep your promises in love
- But justly, as you have exceeded all promise,
- Your mistress shall be happy.
-
-ROSALIND Gentleman,
-
- [Giving him a chain from her neck]
-
- Wear this for me, one out of suits with fortune,
- That could give more, but that her hand lacks means.
- Shall we go, coz?
-
-CELIA Ay. Fare you well, fair gentleman.
-
-ORLANDO Can I not say, I thank you? My better parts
- Are all thrown down, and that which here stands up
- Is but a quintain, a mere lifeless block.
-
-ROSALIND He calls us back: my pride fell with my fortunes;
- I'll ask him what he would. Did you call, sir?
- Sir, you have wrestled well and overthrown
- More than your enemies.
-
-CELIA Will you go, coz?
-
-ROSALIND Have with you. Fare you well.
-
- [Exeunt ROSALIND and CELIA]
-
-ORLANDO What passion hangs these weights upon my tongue?
- I cannot speak to her, yet she urged conference.
- O poor Orlando, thou art overthrown!
- Or Charles or something weaker masters thee.
-
- [Re-enter LE BEAU]
-
-LE BEAU Good sir, I do in friendship counsel you
- To leave this place. Albeit you have deserved
- High commendation, true applause and love,
- Yet such is now the duke's condition
- That he misconstrues all that you have done.
- The duke is humorous; what he is indeed,
- More suits you to conceive than I to speak of.
-
-ORLANDO I thank you, sir: and, pray you, tell me this:
- Which of the two was daughter of the duke
- That here was at the wrestling?
-
-LE BEAU Neither his daughter, if we judge by manners;
- But yet indeed the lesser is his daughter
- The other is daughter to the banish'd duke,
- And here detain'd by her usurping uncle,
- To keep his daughter company; whose loves
- Are dearer than the natural bond of sisters.
- But I can tell you that of late this duke
- Hath ta'en displeasure 'gainst his gentle niece,
- Grounded upon no other argument
- But that the people praise her for her virtues
- And pity her for her good father's sake;
- And, on my life, his malice 'gainst the lady
- Will suddenly break forth. Sir, fare you well:
- Hereafter, in a better world than this,
- I shall desire more love and knowledge of you.
-
-ORLANDO I rest much bounden to you: fare you well.
-
- [Exit LE BEAU]
-
- Thus must I from the smoke into the smother;
- From tyrant duke unto a tyrant brother:
- But heavenly Rosalind!
-
- [Exit]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT I
-
-
-
-SCENE III A room in the palace.
-
-
- [Enter CELIA and ROSALIND]
-
-CELIA Why, cousin! why, Rosalind! Cupid have mercy! not a word?
-
-ROSALIND Not one to throw at a dog.
-
-CELIA No, thy words are too precious to be cast away upon
- curs; throw some of them at me; come, lame me with reasons.
-
-ROSALIND Then there were two cousins laid up; when the one
- should be lamed with reasons and the other mad
- without any.
-
-CELIA But is all this for your father?
-
-ROSALIND No, some of it is for my child's father. O, how
- full of briers is this working-day world!
-
-CELIA They are but burs, cousin, thrown upon thee in
- holiday foolery: if we walk not in the trodden
- paths our very petticoats will catch them.
-
-ROSALIND I could shake them off my coat: these burs are in my heart.
-
-CELIA Hem them away.
-
-ROSALIND I would try, if I could cry 'hem' and have him.
-
-CELIA Come, come, wrestle with thy affections.
-
-ROSALIND O, they take the part of a better wrestler than myself!
-
-CELIA O, a good wish upon you! you will try in time, in
- despite of a fall. But, turning these jests out of
- service, let us talk in good earnest: is it
- possible, on such a sudden, you should fall into so
- strong a liking with old Sir Rowland's youngest son?
-
-ROSALIND The duke my father loved his father dearly.
-
-CELIA Doth it therefore ensue that you should love his son
- dearly? By this kind of chase, I should hate him,
- for my father hated his father dearly; yet I hate
- not Orlando.
-
-ROSALIND No, faith, hate him not, for my sake.
-
-CELIA Why should I not? doth he not deserve well?
-
-ROSALIND Let me love him for that, and do you love him
- because I do. Look, here comes the duke.
-
-CELIA With his eyes full of anger.
-
- [Enter DUKE FREDERICK, with Lords]
-
-DUKE FREDERICK Mistress, dispatch you with your safest haste
- And get you from our court.
-
-ROSALIND Me, uncle?
-
-DUKE FREDERICK You, cousin
- Within these ten days if that thou be'st found
- So near our public court as twenty miles,
- Thou diest for it.
-
-ROSALIND I do beseech your grace,
- Let me the knowledge of my fault bear with me:
- If with myself I hold intelligence
- Or have acquaintance with mine own desires,
- If that I do not dream or be not frantic,--
- As I do trust I am not--then, dear uncle,
- Never so much as in a thought unborn
- Did I offend your highness.
-
-DUKE FREDERICK Thus do all traitors:
- If their purgation did consist in words,
- They are as innocent as grace itself:
- Let it suffice thee that I trust thee not.
-
-ROSALIND Yet your mistrust cannot make me a traitor:
- Tell me whereon the likelihood depends.
-
-DUKE FREDERICK Thou art thy father's daughter; there's enough.
-
-ROSALIND So was I when your highness took his dukedom;
- So was I when your highness banish'd him:
- Treason is not inherited, my lord;
- Or, if we did derive it from our friends,
- What's that to me? my father was no traitor:
- Then, good my liege, mistake me not so much
- To think my poverty is treacherous.
-
-CELIA Dear sovereign, hear me speak.
-
-DUKE FREDERICK Ay, Celia; we stay'd her for your sake,
- Else had she with her father ranged along.
-
-CELIA I did not then entreat to have her stay;
- It was your pleasure and your own remorse:
- I was too young that time to value her;
- But now I know her: if she be a traitor,
- Why so am I; we still have slept together,
- Rose at an instant, learn'd, play'd, eat together,
- And wheresoever we went, like Juno's swans,
- Still we went coupled and inseparable.
-
-DUKE FREDERICK She is too subtle for thee; and her smoothness,
- Her very silence and her patience
- Speak to the people, and they pity her.
- Thou art a fool: she robs thee of thy name;
- And thou wilt show more bright and seem more virtuous
- When she is gone. Then open not thy lips:
- Firm and irrevocable is my doom
- Which I have pass'd upon her; she is banish'd.
-
-CELIA Pronounce that sentence then on me, my liege:
- I cannot live out of her company.
-
-DUKE FREDERICK You are a fool. You, niece, provide yourself:
- If you outstay the time, upon mine honour,
- And in the greatness of my word, you die.
-
- [Exeunt DUKE FREDERICK and Lords]
-
-CELIA O my poor Rosalind, whither wilt thou go?
- Wilt thou change fathers? I will give thee mine.
- I charge thee, be not thou more grieved than I am.
-
-ROSALIND I have more cause.
-
-CELIA Thou hast not, cousin;
- Prithee be cheerful: know'st thou not, the duke
- Hath banish'd me, his daughter?
-
-ROSALIND That he hath not.
-
-CELIA No, hath not? Rosalind lacks then the love
- Which teacheth thee that thou and I am one:
- Shall we be sunder'd? shall we part, sweet girl?
- No: let my father seek another heir.
- Therefore devise with me how we may fly,
- Whither to go and what to bear with us;
- And do not seek to take your change upon you,
- To bear your griefs yourself and leave me out;
- For, by this heaven, now at our sorrows pale,
- Say what thou canst, I'll go along with thee.
-
-ROSALIND Why, whither shall we go?
-
-CELIA To seek my uncle in the forest of Arden.
-
-ROSALIND Alas, what danger will it be to us,
- Maids as we are, to travel forth so far!
- Beauty provoketh thieves sooner than gold.
-
-CELIA I'll put myself in poor and mean attire
- And with a kind of umber smirch my face;
- The like do you: so shall we pass along
- And never stir assailants.
-
-ROSALIND Were it not better,
- Because that I am more than common tall,
- That I did suit me all points like a man?
- A gallant curtle-axe upon my thigh,
- A boar-spear in my hand; and--in my heart
- Lie there what hidden woman's fear there will--
- We'll have a swashing and a martial outside,
- As many other mannish cowards have
- That do outface it with their semblances.
-
-CELIA What shall I call thee when thou art a man?
-
-ROSALIND I'll have no worse a name than Jove's own page;
- And therefore look you call me Ganymede.
- But what will you be call'd?
-
-CELIA Something that hath a reference to my state
- No longer Celia, but Aliena.
-
-ROSALIND But, cousin, what if we assay'd to steal
- The clownish fool out of your father's court?
- Would he not be a comfort to our travel?
-
-CELIA He'll go along o'er the wide world with me;
- Leave me alone to woo him. Let's away,
- And get our jewels and our wealth together,
- Devise the fittest time and safest way
- To hide us from pursuit that will be made
- After my flight. Now go we in content
- To liberty and not to banishment.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE I The Forest of Arden.
-
-
- [Enter DUKE SENIOR, AMIENS, and two or three Lords,
- like foresters]
-
-DUKE SENIOR Now, my co-mates and brothers in exile,
- Hath not old custom made this life more sweet
- Than that of painted pomp? Are not these woods
- More free from peril than the envious court?
- Here feel we but the penalty of Adam,
- The seasons' difference, as the icy fang
- And churlish chiding of the winter's wind,
- Which, when it bites and blows upon my body,
- Even till I shrink with cold, I smile and say
- 'This is no flattery: these are counsellors
- That feelingly persuade me what I am.'
- Sweet are the uses of adversity,
- Which, like the toad, ugly and venomous,
- Wears yet a precious jewel in his head;
- And this our life exempt from public haunt
- Finds tongues in trees, books in the running brooks,
- Sermons in stones and good in every thing.
- I would not change it.
-
-AMIENS Happy is your grace,
- That can translate the stubbornness of fortune
- Into so quiet and so sweet a style.
-
-DUKE SENIOR Come, shall we go and kill us venison?
- And yet it irks me the poor dappled fools,
- Being native burghers of this desert city,
- Should in their own confines with forked heads
- Have their round haunches gored.
-
-First Lord Indeed, my lord,
- The melancholy Jaques grieves at that,
- And, in that kind, swears you do more usurp
- Than doth your brother that hath banish'd you.
- To-day my Lord of Amiens and myself
- Did steal behind him as he lay along
- Under an oak whose antique root peeps out
- Upon the brook that brawls along this wood:
- To the which place a poor sequester'd stag,
- That from the hunter's aim had ta'en a hurt,
- Did come to languish, and indeed, my lord,
- The wretched animal heaved forth such groans
- That their discharge did stretch his leathern coat
- Almost to bursting, and the big round tears
- Coursed one another down his innocent nose
- In piteous chase; and thus the hairy fool
- Much marked of the melancholy Jaques,
- Stood on the extremest verge of the swift brook,
- Augmenting it with tears.
-
-DUKE SENIOR But what said Jaques?
- Did he not moralize this spectacle?
-
-First Lord O, yes, into a thousand similes.
- First, for his weeping into the needless stream;
- 'Poor deer,' quoth he, 'thou makest a testament
- As worldlings do, giving thy sum of more
- To that which had too much:' then, being there alone,
- Left and abandon'd of his velvet friends,
- ''Tis right:' quoth he; 'thus misery doth part
- The flux of company:' anon a careless herd,
- Full of the pasture, jumps along by him
- And never stays to greet him; 'Ay' quoth Jaques,
- 'Sweep on, you fat and greasy citizens;
- 'Tis just the fashion: wherefore do you look
- Upon that poor and broken bankrupt there?'
- Thus most invectively he pierceth through
- The body of the country, city, court,
- Yea, and of this our life, swearing that we
- Are mere usurpers, tyrants and what's worse,
- To fright the animals and to kill them up
- In their assign'd and native dwelling-place.
-
-DUKE SENIOR And did you leave him in this contemplation?
-
-Second Lord We did, my lord, weeping and commenting
- Upon the sobbing deer.
-
-DUKE SENIOR Show me the place:
- I love to cope him in these sullen fits,
- For then he's full of matter.
-
-First Lord I'll bring you to him straight.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE II A room in the palace.
-
-
- [Enter DUKE FREDERICK, with Lords]
-
-DUKE FREDERICK Can it be possible that no man saw them?
- It cannot be: some villains of my court
- Are of consent and sufferance in this.
-
-First Lord I cannot hear of any that did see her.
- The ladies, her attendants of her chamber,
- Saw her abed, and in the morning early
- They found the bed untreasured of their mistress.
-
-Second Lord My lord, the roynish clown, at whom so oft
- Your grace was wont to laugh, is also missing.
- Hisperia, the princess' gentlewoman,
- Confesses that she secretly o'erheard
- Your daughter and her cousin much commend
- The parts and graces of the wrestler
- That did but lately foil the sinewy Charles;
- And she believes, wherever they are gone,
- That youth is surely in their company.
-
-DUKE FREDERICK Send to his brother; fetch that gallant hither;
- If he be absent, bring his brother to me;
- I'll make him find him: do this suddenly,
- And let not search and inquisition quail
- To bring again these foolish runaways.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE III Before OLIVER'S house.
-
-
- [Enter ORLANDO and ADAM, meeting]
-
-ORLANDO Who's there?
-
-ADAM What, my young master? O, my gentle master!
- O my sweet master! O you memory
- Of old Sir Rowland! why, what make you here?
- Why are you virtuous? why do people love you?
- And wherefore are you gentle, strong and valiant?
- Why would you be so fond to overcome
- The bonny priser of the humorous duke?
- Your praise is come too swiftly home before you.
- Know you not, master, to some kind of men
- Their graces serve them but as enemies?
- No more do yours: your virtues, gentle master,
- Are sanctified and holy traitors to you.
- O, what a world is this, when what is comely
- Envenoms him that bears it!
-
-ORLANDO Why, what's the matter?
-
-ADAM O unhappy youth!
- Come not within these doors; within this roof
- The enemy of all your graces lives:
- Your brother--no, no brother; yet the son--
- Yet not the son, I will not call him son
- Of him I was about to call his father--
- Hath heard your praises, and this night he means
- To burn the lodging where you use to lie
- And you within it: if he fail of that,
- He will have other means to cut you off.
- I overheard him and his practises.
- This is no place; this house is but a butchery:
- Abhor it, fear it, do not enter it.
-
-ORLANDO Why, whither, Adam, wouldst thou have me go?
-
-ADAM No matter whither, so you come not here.
-
-ORLANDO What, wouldst thou have me go and beg my food?
- Or with a base and boisterous sword enforce
- A thievish living on the common road?
- This I must do, or know not what to do:
- Yet this I will not do, do how I can;
- I rather will subject me to the malice
- Of a diverted blood and bloody brother.
-
-ADAM But do not so. I have five hundred crowns,
- The thrifty hire I saved under your father,
- Which I did store to be my foster-nurse
- When service should in my old limbs lie lame
- And unregarded age in corners thrown:
- Take that, and He that doth the ravens feed,
- Yea, providently caters for the sparrow,
- Be comfort to my age! Here is the gold;
- And all this I give you. Let me be your servant:
- Though I look old, yet I am strong and lusty;
- For in my youth I never did apply
- Hot and rebellious liquors in my blood,
- Nor did not with unbashful forehead woo
- The means of weakness and debility;
- Therefore my age is as a lusty winter,
- Frosty, but kindly: let me go with you;
- I'll do the service of a younger man
- In all your business and necessities.
-
-ORLANDO O good old man, how well in thee appears
- The constant service of the antique world,
- When service sweat for duty, not for meed!
- Thou art not for the fashion of these times,
- Where none will sweat but for promotion,
- And having that, do choke their service up
- Even with the having: it is not so with thee.
- But, poor old man, thou prunest a rotten tree,
- That cannot so much as a blossom yield
- In lieu of all thy pains and husbandry
- But come thy ways; well go along together,
- And ere we have thy youthful wages spent,
- We'll light upon some settled low content.
-
-ADAM Master, go on, and I will follow thee,
- To the last gasp, with truth and loyalty.
- From seventeen years till now almost fourscore
- Here lived I, but now live here no more.
- At seventeen years many their fortunes seek;
- But at fourscore it is too late a week:
- Yet fortune cannot recompense me better
- Than to die well and not my master's debtor.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE IV The Forest of Arden.
-
-
- [Enter ROSALIND for Ganymede, CELIA for Aliena,
- and TOUCHSTONE]
-
-ROSALIND O Jupiter, how weary are my spirits!
-
-TOUCHSTONE I care not for my spirits, if my legs were not weary.
-
-ROSALIND I could find in my heart to disgrace my man's
- apparel and to cry like a woman; but I must comfort
- the weaker vessel, as doublet and hose ought to show
- itself courageous to petticoat: therefore courage,
- good Aliena!
-
-CELIA I pray you, bear with me; I cannot go no further.
-
-TOUCHSTONE For my part, I had rather bear with you than bear
- you; yet I should bear no cross if I did bear you,
- for I think you have no money in your purse.
-
-ROSALIND Well, this is the forest of Arden.
-
-TOUCHSTONE Ay, now am I in Arden; the more fool I; when I was
- at home, I was in a better place: but travellers
- must be content.
-
-ROSALIND Ay, be so, good Touchstone.
-
- [Enter CORIN and SILVIUS]
-
- Look you, who comes here; a young man and an old in
- solemn talk.
-
-CORIN That is the way to make her scorn you still.
-
-SILVIUS O Corin, that thou knew'st how I do love her!
-
-CORIN I partly guess; for I have loved ere now.
-
-SILVIUS No, Corin, being old, thou canst not guess,
- Though in thy youth thou wast as true a lover
- As ever sigh'd upon a midnight pillow:
- But if thy love were ever like to mine--
- As sure I think did never man love so--
- How many actions most ridiculous
- Hast thou been drawn to by thy fantasy?
-
-CORIN Into a thousand that I have forgotten.
-
-SILVIUS O, thou didst then ne'er love so heartily!
- If thou remember'st not the slightest folly
- That ever love did make thee run into,
- Thou hast not loved:
- Or if thou hast not sat as I do now,
- Wearying thy hearer in thy mistress' praise,
- Thou hast not loved:
- Or if thou hast not broke from company
- Abruptly, as my passion now makes me,
- Thou hast not loved.
- O Phebe, Phebe, Phebe!
-
- [Exit]
-
-ROSALIND Alas, poor shepherd! searching of thy wound,
- I have by hard adventure found mine own.
-
-TOUCHSTONE And I mine. I remember, when I was in love I broke
- my sword upon a stone and bid him take that for
- coming a-night to Jane Smile; and I remember the
- kissing of her batlet and the cow's dugs that her
- pretty chopt hands had milked; and I remember the
- wooing of a peascod instead of her, from whom I took
- two cods and, giving her them again, said with
- weeping tears 'Wear these for my sake.' We that are
- true lovers run into strange capers; but as all is
- mortal in nature, so is all nature in love mortal in folly.
-
-ROSALIND Thou speakest wiser than thou art ware of.
-
-TOUCHSTONE Nay, I shall ne'er be ware of mine own wit till I
- break my shins against it.
-
-ROSALIND Jove, Jove! this shepherd's passion
- Is much upon my fashion.
-
-TOUCHSTONE And mine; but it grows something stale with me.
-
-CELIA I pray you, one of you question yond man
- If he for gold will give us any food:
- I faint almost to death.
-
-TOUCHSTONE Holla, you clown!
-
-ROSALIND Peace, fool: he's not thy kinsman.
-
-CORIN Who calls?
-
-TOUCHSTONE Your betters, sir.
-
-CORIN Else are they very wretched.
-
-ROSALIND Peace, I say. Good even to you, friend.
-
-CORIN And to you, gentle sir, and to you all.
-
-ROSALIND I prithee, shepherd, if that love or gold
- Can in this desert place buy entertainment,
- Bring us where we may rest ourselves and feed:
- Here's a young maid with travel much oppress'd
- And faints for succor.
-
-CORIN Fair sir, I pity her
- And wish, for her sake more than for mine own,
- My fortunes were more able to relieve her;
- But I am shepherd to another man
- And do not shear the fleeces that I graze:
- My master is of churlish disposition
- And little recks to find the way to heaven
- By doing deeds of hospitality:
- Besides, his cote, his flocks and bounds of feed
- Are now on sale, and at our sheepcote now,
- By reason of his absence, there is nothing
- That you will feed on; but what is, come see.
- And in my voice most welcome shall you be.
-
-ROSALIND What is he that shall buy his flock and pasture?
-
-CORIN That young swain that you saw here but erewhile,
- That little cares for buying any thing.
-
-ROSALIND I pray thee, if it stand with honesty,
- Buy thou the cottage, pasture and the flock,
- And thou shalt have to pay for it of us.
-
-CELIA And we will mend thy wages. I like this place.
- And willingly could waste my time in it.
-
-CORIN Assuredly the thing is to be sold:
- Go with me: if you like upon report
- The soil, the profit and this kind of life,
- I will your very faithful feeder be
- And buy it with your gold right suddenly.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE V The Forest.
-
-
- [Enter AMIENS, JAQUES, and others]
-
- SONG.
-AMIENS Under the greenwood tree
- Who loves to lie with me,
- And turn his merry note
- Unto the sweet bird's throat,
- Come hither, come hither, come hither:
- Here shall he see No enemy
- But winter and rough weather.
-
-JAQUES More, more, I prithee, more.
-
-AMIENS It will make you melancholy, Monsieur Jaques.
-
-JAQUES I thank it. More, I prithee, more. I can suck
- melancholy out of a song, as a weasel sucks eggs.
- More, I prithee, more.
-
-AMIENS My voice is ragged: I know I cannot please you.
-
-JAQUES I do not desire you to please me; I do desire you to
- sing. Come, more; another stanzo: call you 'em stanzos?
-
-AMIENS What you will, Monsieur Jaques.
-
-JAQUES Nay, I care not for their names; they owe me
- nothing. Will you sing?
-
-AMIENS More at your request than to please myself.
-
-JAQUES Well then, if ever I thank any man, I'll thank you;
- but that they call compliment is like the encounter
- of two dog-apes, and when a man thanks me heartily,
- methinks I have given him a penny and he renders me
- the beggarly thanks. Come, sing; and you that will
- not, hold your tongues.
-
-AMIENS Well, I'll end the song. Sirs, cover the while; the
- duke will drink under this tree. He hath been all
- this day to look you.
-
-JAQUES And I have been all this day to avoid him. He is
- too disputable for my company: I think of as many
- matters as he, but I give heaven thanks and make no
- boast of them. Come, warble, come.
-
- SONG.
- Who doth ambition shun
-
- [All together here]
-
- And loves to live i' the sun,
- Seeking the food he eats
- And pleased with what he gets,
- Come hither, come hither, come hither:
- Here shall he see No enemy
- But winter and rough weather.
-
-JAQUES I'll give you a verse to this note that I made
- yesterday in despite of my invention.
-
-AMIENS And I'll sing it.
-
-JAQUES Thus it goes:--
-
- If it do come to pass
- That any man turn ass,
- Leaving his wealth and ease,
- A stubborn will to please,
- Ducdame, ducdame, ducdame:
- Here shall he see
- Gross fools as he,
- An if he will come to me.
-
-AMIENS What's that 'ducdame'?
-
-JAQUES 'Tis a Greek invocation, to call fools into a
- circle. I'll go sleep, if I can; if I cannot, I'll
- rail against all the first-born of Egypt.
-
-AMIENS And I'll go seek the duke: his banquet is prepared.
-
- [Exeunt severally]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE VI The forest.
-
-
- [Enter ORLANDO and ADAM]
-
-ADAM Dear master, I can go no further. O, I die for food!
- Here lie I down, and measure out my grave. Farewell,
- kind master.
-
-ORLANDO Why, how now, Adam! no greater heart in thee? Live
- a little; comfort a little; cheer thyself a little.
- If this uncouth forest yield any thing savage, I
- will either be food for it or bring it for food to
- thee. Thy conceit is nearer death than thy powers.
- For my sake be comfortable; hold death awhile at
- the arm's end: I will here be with thee presently;
- and if I bring thee not something to eat, I will
- give thee leave to die: but if thou diest before I
- come, thou art a mocker of my labour. Well said!
- thou lookest cheerly, and I'll be with thee quickly.
- Yet thou liest in the bleak air: come, I will bear
- thee to some shelter; and thou shalt not die for
- lack of a dinner, if there live any thing in this
- desert. Cheerly, good Adam!
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT II
-
-
-
-SCENE VII The forest.
-
-
- [A table set out. Enter DUKE SENIOR, AMIENS, and
- Lords like outlaws]
-
-DUKE SENIOR I think he be transform'd into a beast;
- For I can no where find him like a man.
-
-First Lord My lord, he is but even now gone hence:
- Here was he merry, hearing of a song.
-
-DUKE SENIOR If he, compact of jars, grow musical,
- We shall have shortly discord in the spheres.
- Go, seek him: tell him I would speak with him.
-
- [Enter JAQUES]
-
-First Lord He saves my labour by his own approach.
-
-DUKE SENIOR Why, how now, monsieur! what a life is this,
- That your poor friends must woo your company?
- What, you look merrily!
-
-JAQUES A fool, a fool! I met a fool i' the forest,
- A motley fool; a miserable world!
- As I do live by food, I met a fool
- Who laid him down and bask'd him in the sun,
- And rail'd on Lady Fortune in good terms,
- In good set terms and yet a motley fool.
- 'Good morrow, fool,' quoth I. 'No, sir,' quoth he,
- 'Call me not fool till heaven hath sent me fortune:'
- And then he drew a dial from his poke,
- And, looking on it with lack-lustre eye,
- Says very wisely, 'It is ten o'clock:
- Thus we may see,' quoth he, 'how the world wags:
- 'Tis but an hour ago since it was nine,
- And after one hour more 'twill be eleven;
- And so, from hour to hour, we ripe and ripe,
- And then, from hour to hour, we rot and rot;
- And thereby hangs a tale.' When I did hear
- The motley fool thus moral on the time,
- My lungs began to crow like chanticleer,
- That fools should be so deep-contemplative,
- And I did laugh sans intermission
- An hour by his dial. O noble fool!
- A worthy fool! Motley's the only wear.
-
-DUKE SENIOR What fool is this?
-
-JAQUES O worthy fool! One that hath been a courtier,
- And says, if ladies be but young and fair,
- They have the gift to know it: and in his brain,
- Which is as dry as the remainder biscuit
- After a voyage, he hath strange places cramm'd
- With observation, the which he vents
- In mangled forms. O that I were a fool!
- I am ambitious for a motley coat.
-
-DUKE SENIOR Thou shalt have one.
-
-JAQUES It is my only suit;
- Provided that you weed your better judgments
- Of all opinion that grows rank in them
- That I am wise. I must have liberty
- Withal, as large a charter as the wind,
- To blow on whom I please; for so fools have;
- And they that are most galled with my folly,
- They most must laugh. And why, sir, must they so?
- The 'why' is plain as way to parish church:
- He that a fool doth very wisely hit
- Doth very foolishly, although he smart,
- Not to seem senseless of the bob: if not,
- The wise man's folly is anatomized
- Even by the squandering glances of the fool.
- Invest me in my motley; give me leave
- To speak my mind, and I will through and through
- Cleanse the foul body of the infected world,
- If they will patiently receive my medicine.
-
-DUKE SENIOR Fie on thee! I can tell what thou wouldst do.
-
-JAQUES What, for a counter, would I do but good?
-
-DUKE SENIOR Most mischievous foul sin, in chiding sin:
- For thou thyself hast been a libertine,
- As sensual as the brutish sting itself;
- And all the embossed sores and headed evils,
- That thou with licence of free foot hast caught,
- Wouldst thou disgorge into the general world.
-
-JAQUES Why, who cries out on pride,
- That can therein tax any private party?
- Doth it not flow as hugely as the sea,
- Till that the weary very means do ebb?
- What woman in the city do I name,
- When that I say the city-woman bears
- The cost of princes on unworthy shoulders?
- Who can come in and say that I mean her,
- When such a one as she such is her neighbour?
- Or what is he of basest function
- That says his bravery is not of my cost,
- Thinking that I mean him, but therein suits
- His folly to the mettle of my speech?
- There then; how then? what then? Let me see wherein
- My tongue hath wrong'd him: if it do him right,
- Then he hath wrong'd himself; if he be free,
- Why then my taxing like a wild-goose flies,
- Unclaim'd of any man. But who comes here?
-
- [Enter ORLANDO, with his sword drawn]
-
-ORLANDO Forbear, and eat no more.
-
-JAQUES Why, I have eat none yet.
-
-ORLANDO Nor shalt not, till necessity be served.
-
-JAQUES Of what kind should this cock come of?
-
-DUKE SENIOR Art thou thus bolden'd, man, by thy distress,
- Or else a rude despiser of good manners,
- That in civility thou seem'st so empty?
-
-ORLANDO You touch'd my vein at first: the thorny point
- Of bare distress hath ta'en from me the show
- Of smooth civility: yet am I inland bred
- And know some nurture. But forbear, I say:
- He dies that touches any of this fruit
- Till I and my affairs are answered.
-
-JAQUES An you will not be answered with reason, I must die.
-
-DUKE SENIOR What would you have? Your gentleness shall force
- More than your force move us to gentleness.
-
-ORLANDO I almost die for food; and let me have it.
-
-DUKE SENIOR Sit down and feed, and welcome to our table.
-
-ORLANDO Speak you so gently? Pardon me, I pray you:
- I thought that all things had been savage here;
- And therefore put I on the countenance
- Of stern commandment. But whate'er you are
- That in this desert inaccessible,
- Under the shade of melancholy boughs,
- Lose and neglect the creeping hours of time
- If ever you have look'd on better days,
- If ever been where bells have knoll'd to church,
- If ever sat at any good man's feast,
- If ever from your eyelids wiped a tear
- And know what 'tis to pity and be pitied,
- Let gentleness my strong enforcement be:
- In the which hope I blush, and hide my sword.
-
-DUKE SENIOR True is it that we have seen better days,
- And have with holy bell been knoll'd to church
- And sat at good men's feasts and wiped our eyes
- Of drops that sacred pity hath engender'd:
- And therefore sit you down in gentleness
- And take upon command what help we have
- That to your wanting may be minister'd.
-
-ORLANDO Then but forbear your food a little while,
- Whiles, like a doe, I go to find my fawn
- And give it food. There is an old poor man,
- Who after me hath many a weary step
- Limp'd in pure love: till he be first sufficed,
- Oppress'd with two weak evils, age and hunger,
- I will not touch a bit.
-
-DUKE SENIOR Go find him out,
- And we will nothing waste till you return.
-
-ORLANDO I thank ye; and be blest for your good comfort!
-
- [Exit]
-
-DUKE SENIOR Thou seest we are not all alone unhappy:
- This wide and universal theatre
- Presents more woeful pageants than the scene
- Wherein we play in.
-
-JAQUES All the world's a stage,
- And all the men and women merely players:
- They have their exits and their entrances;
- And one man in his time plays many parts,
- His acts being seven ages. At first the infant,
- Mewling and puking in the nurse's arms.
- And then the whining school-boy, with his satchel
- And shining morning face, creeping like snail
- Unwillingly to school. And then the lover,
- Sighing like furnace, with a woeful ballad
- Made to his mistress' eyebrow. Then a soldier,
- Full of strange oaths and bearded like the pard,
- Jealous in honour, sudden and quick in quarrel,
- Seeking the bubble reputation
- Even in the cannon's mouth. And then the justice,
- In fair round belly with good capon lined,
- With eyes severe and beard of formal cut,
- Full of wise saws and modern instances;
- And so he plays his part. The sixth age shifts
- Into the lean and slipper'd pantaloon,
- With spectacles on nose and pouch on side,
- His youthful hose, well saved, a world too wide
- For his shrunk shank; and his big manly voice,
- Turning again toward childish treble, pipes
- And whistles in his sound. Last scene of all,
- That ends this strange eventful history,
- Is second childishness and mere oblivion,
- Sans teeth, sans eyes, sans taste, sans everything.
-
- [Re-enter ORLANDO, with ADAM]
-
-DUKE SENIOR Welcome. Set down your venerable burthen,
- And let him feed.
-
-ORLANDO I thank you most for him.
-
-ADAM So had you need:
- I scarce can speak to thank you for myself.
-
-DUKE SENIOR Welcome; fall to: I will not trouble you
- As yet, to question you about your fortunes.
- Give us some music; and, good cousin, sing.
-
- SONG.
-AMIENS Blow, blow, thou winter wind.
- Thou art not so unkind
- As man's ingratitude;
- Thy tooth is not so keen,
- Because thou art not seen,
- Although thy breath be rude.
- Heigh-ho! sing, heigh-ho! unto the green holly:
- Most friendship is feigning, most loving mere folly:
- Then, heigh-ho, the holly!
- This life is most jolly.
- Freeze, freeze, thou bitter sky,
- That dost not bite so nigh
- As benefits forgot:
- Though thou the waters warp,
- Thy sting is not so sharp
- As friend remember'd not.
- Heigh-ho! sing, &c.
-
-DUKE SENIOR If that you were the good Sir Rowland's son,
- As you have whisper'd faithfully you were,
- And as mine eye doth his effigies witness
- Most truly limn'd and living in your face,
- Be truly welcome hither: I am the duke
- That loved your father: the residue of your fortune,
- Go to my cave and tell me. Good old man,
- Thou art right welcome as thy master is.
- Support him by the arm. Give me your hand,
- And let me all your fortunes understand.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT III
-
-
-
-SCENE I A room in the palace.
-
-
- [Enter DUKE FREDERICK, Lords, and OLIVER]
-
-DUKE FREDERICK Not see him since? Sir, sir, that cannot be:
- But were I not the better part made mercy,
- I should not seek an absent argument
- Of my revenge, thou present. But look to it:
- Find out thy brother, wheresoe'er he is;
- Seek him with candle; bring him dead or living
- Within this twelvemonth, or turn thou no more
- To seek a living in our territory.
- Thy lands and all things that thou dost call thine
- Worth seizure do we seize into our hands,
- Till thou canst quit thee by thy brothers mouth
- Of what we think against thee.
-
-OLIVER O that your highness knew my heart in this!
- I never loved my brother in my life.
-
-DUKE FREDERICK More villain thou. Well, push him out of doors;
- And let my officers of such a nature
- Make an extent upon his house and lands:
- Do this expediently and turn him going.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT III
-
-
-
-SCENE II The forest.
-
-
- [Enter ORLANDO, with a paper]
-
-ORLANDO Hang there, my verse, in witness of my love:
- And thou, thrice-crowned queen of night, survey
- With thy chaste eye, from thy pale sphere above,
- Thy huntress' name that my full life doth sway.
- O Rosalind! these trees shall be my books
- And in their barks my thoughts I'll character;
- That every eye which in this forest looks
- Shall see thy virtue witness'd every where.
- Run, run, Orlando; carve on every tree
- The fair, the chaste and unexpressive she.
-
- [Exit]
-
- [Enter CORIN and TOUCHSTONE]
-
-CORIN And how like you this shepherd's life, Master Touchstone?
-
-TOUCHSTONE Truly, shepherd, in respect of itself, it is a good
- life, but in respect that it is a shepherd's life,
- it is naught. In respect that it is solitary, I
- like it very well; but in respect that it is
- private, it is a very vile life. Now, in respect it
- is in the fields, it pleaseth me well; but in
- respect it is not in the court, it is tedious. As
- is it a spare life, look you, it fits my humour well;
- but as there is no more plenty in it, it goes much
- against my stomach. Hast any philosophy in thee, shepherd?
-
-CORIN No more but that I know the more one sickens the
- worse at ease he is; and that he that wants money,
- means and content is without three good friends;
- that the property of rain is to wet and fire to
- burn; that good pasture makes fat sheep, and that a
- great cause of the night is lack of the sun; that
- he that hath learned no wit by nature nor art may
- complain of good breeding or comes of a very dull kindred.
-
-TOUCHSTONE Such a one is a natural philosopher. Wast ever in
- court, shepherd?
-
-CORIN No, truly.
-
-TOUCHSTONE Then thou art damned.
-
-CORIN Nay, I hope.
-
-TOUCHSTONE Truly, thou art damned like an ill-roasted egg, all
- on one side.
-
-CORIN For not being at court? Your reason.
-
-TOUCHSTONE Why, if thou never wast at court, thou never sawest
- good manners; if thou never sawest good manners,
- then thy manners must be wicked; and wickedness is
- sin, and sin is damnation. Thou art in a parlous
- state, shepherd.
-
-CORIN Not a whit, Touchstone: those that are good manners
- at the court are as ridiculous in the country as the
- behavior of the country is most mockable at the
- court. You told me you salute not at the court, but
- you kiss your hands: that courtesy would be
- uncleanly, if courtiers were shepherds.
-
-TOUCHSTONE Instance, briefly; come, instance.
-
-CORIN Why, we are still handling our ewes, and their
- fells, you know, are greasy.
-
-TOUCHSTONE Why, do not your courtier's hands sweat? and is not
- the grease of a mutton as wholesome as the sweat of
- a man? Shallow, shallow. A better instance, I say; come.
-
-CORIN Besides, our hands are hard.
-
-TOUCHSTONE Your lips will feel them the sooner. Shallow again.
- A more sounder instance, come.
-
-CORIN And they are often tarred over with the surgery of
- our sheep: and would you have us kiss tar? The
- courtier's hands are perfumed with civet.
-
-TOUCHSTONE Most shallow man! thou worms-meat, in respect of a
- good piece of flesh indeed! Learn of the wise, and
- perpend: civet is of a baser birth than tar, the
- very uncleanly flux of a cat. Mend the instance, shepherd.
-
-CORIN You have too courtly a wit for me: I'll rest.
-
-TOUCHSTONE Wilt thou rest damned? God help thee, shallow man!
- God make incision in thee! thou art raw.
-
-CORIN Sir, I am a true labourer: I earn that I eat, get
- that I wear, owe no man hate, envy no man's
- happiness, glad of other men's good, content with my
- harm, and the greatest of my pride is to see my ewes
- graze and my lambs suck.
-
-TOUCHSTONE That is another simple sin in you, to bring the ewes
- and the rams together and to offer to get your
- living by the copulation of cattle; to be bawd to a
- bell-wether, and to betray a she-lamb of a
- twelvemonth to a crooked-pated, old, cuckoldly ram,
- out of all reasonable match. If thou beest not
- damned for this, the devil himself will have no
- shepherds; I cannot see else how thou shouldst
- 'scape.
-
-CORIN Here comes young Master Ganymede, my new mistress's brother.
-
- [Enter ROSALIND, with a paper, reading]
-
-ROSALIND From the east to western Ind,
- No jewel is like Rosalind.
- Her worth, being mounted on the wind,
- Through all the world bears Rosalind.
- All the pictures fairest lined
- Are but black to Rosalind.
- Let no fair be kept in mind
- But the fair of Rosalind.
-
-TOUCHSTONE I'll rhyme you so eight years together, dinners and
- suppers and sleeping-hours excepted: it is the
- right butter-women's rank to market.
-
-ROSALIND Out, fool!
-
-TOUCHSTONE For a taste:
- If a hart do lack a hind,
- Let him seek out Rosalind.
- If the cat will after kind,
- So be sure will Rosalind.
- Winter garments must be lined,
- So must slender Rosalind.
- They that reap must sheaf and bind;
- Then to cart with Rosalind.
- Sweetest nut hath sourest rind,
- Such a nut is Rosalind.
- He that sweetest rose will find
- Must find love's prick and Rosalind.
- This is the very false gallop of verses: why do you
- infect yourself with them?
-
-ROSALIND Peace, you dull fool! I found them on a tree.
-
-TOUCHSTONE Truly, the tree yields bad fruit.
-
-ROSALIND I'll graff it with you, and then I shall graff it
- with a medlar: then it will be the earliest fruit
- i' the country; for you'll be rotten ere you be half
- ripe, and that's the right virtue of the medlar.
-
-TOUCHSTONE You have said; but whether wisely or no, let the
- forest judge.
-
- [Enter CELIA, with a writing]
-
-ROSALIND Peace! Here comes my sister, reading: stand aside.
-
-CELIA [Reads]
-
- Why should this a desert be?
- For it is unpeopled? No:
- Tongues I'll hang on every tree,
- That shall civil sayings show:
- Some, how brief the life of man
- Runs his erring pilgrimage,
- That the stretching of a span
- Buckles in his sum of age;
- Some, of violated vows
- 'Twixt the souls of friend and friend:
- But upon the fairest boughs,
- Or at every sentence end,
- Will I Rosalinda write,
- Teaching all that read to know
- The quintessence of every sprite
- Heaven would in little show.
- Therefore Heaven Nature charged
- That one body should be fill'd
- With all graces wide-enlarged:
- Nature presently distill'd
- Helen's cheek, but not her heart,
- Cleopatra's majesty,
- Atalanta's better part,
- Sad Lucretia's modesty.
- Thus Rosalind of many parts
- By heavenly synod was devised,
- Of many faces, eyes and hearts,
- To have the touches dearest prized.
- Heaven would that she these gifts should have,
- And I to live and die her slave.
-
-ROSALIND O most gentle pulpiter! what tedious homily of love
- have you wearied your parishioners withal, and never
- cried 'Have patience, good people!'
-
-CELIA How now! back, friends! Shepherd, go off a little.
- Go with him, sirrah.
-
-TOUCHSTONE Come, shepherd, let us make an honourable retreat;
- though not with bag and baggage, yet with scrip and scrippage.
-
- [Exeunt CORIN and TOUCHSTONE]
-
-CELIA Didst thou hear these verses?
-
-ROSALIND O, yes, I heard them all, and more too; for some of
- them had in them more feet than the verses would bear.
-
-CELIA That's no matter: the feet might bear the verses.
-
-ROSALIND Ay, but the feet were lame and could not bear
- themselves without the verse and therefore stood
- lamely in the verse.
-
-CELIA But didst thou hear without wondering how thy name
- should be hanged and carved upon these trees?
-
-ROSALIND I was seven of the nine days out of the wonder
- before you came; for look here what I found on a
- palm-tree. I was never so be-rhymed since
- Pythagoras' time, that I was an Irish rat, which I
- can hardly remember.
-
-CELIA Trow you who hath done this?
-
-ROSALIND Is it a man?
-
-CELIA And a chain, that you once wore, about his neck.
- Change you colour?
-
-ROSALIND I prithee, who?
-
-CELIA O Lord, Lord! it is a hard matter for friends to
- meet; but mountains may be removed with earthquakes
- and so encounter.
-
-ROSALIND Nay, but who is it?
-
-CELIA Is it possible?
-
-ROSALIND Nay, I prithee now with most petitionary vehemence,
- tell me who it is.
-
-CELIA O wonderful, wonderful, and most wonderful
- wonderful! and yet again wonderful, and after that,
- out of all hooping!
-
-ROSALIND Good my complexion! dost thou think, though I am
- caparisoned like a man, I have a doublet and hose in
- my disposition? One inch of delay more is a
- South-sea of discovery; I prithee, tell me who is it
- quickly, and speak apace. I would thou couldst
- stammer, that thou mightst pour this concealed man
- out of thy mouth, as wine comes out of a narrow-
- mouthed bottle, either too much at once, or none at
- all. I prithee, take the cork out of thy mouth that
- may drink thy tidings.
-
-CELIA So you may put a man in your belly.
-
-ROSALIND Is he of God's making? What manner of man? Is his
- head worth a hat, or his chin worth a beard?
-
-CELIA Nay, he hath but a little beard.
-
-ROSALIND Why, God will send more, if the man will be
- thankful: let me stay the growth of his beard, if
- thou delay me not the knowledge of his chin.
-
-CELIA It is young Orlando, that tripped up the wrestler's
- heels and your heart both in an instant.
-
-ROSALIND Nay, but the devil take mocking: speak, sad brow and
- true maid.
-
-CELIA I' faith, coz, 'tis he.
-
-ROSALIND Orlando?
-
-CELIA Orlando.
-
-ROSALIND Alas the day! what shall I do with my doublet and
- hose? What did he when thou sawest him? What said
- he? How looked he? Wherein went he? What makes
- him here? Did he ask for me? Where remains he?
- How parted he with thee? and when shalt thou see
- him again? Answer me in one word.
-
-CELIA You must borrow me Gargantua's mouth first: 'tis a
- word too great for any mouth of this age's size. To
- say ay and no to these particulars is more than to
- answer in a catechism.
-
-ROSALIND But doth he know that I am in this forest and in
- man's apparel? Looks he as freshly as he did the
- day he wrestled?
-
-CELIA It is as easy to count atomies as to resolve the
- propositions of a lover; but take a taste of my
- finding him, and relish it with good observance.
- I found him under a tree, like a dropped acorn.
-
-ROSALIND It may well be called Jove's tree, when it drops
- forth such fruit.
-
-CELIA Give me audience, good madam.
-
-ROSALIND Proceed.
-
-CELIA There lay he, stretched along, like a wounded knight.
-
-ROSALIND Though it be pity to see such a sight, it well
- becomes the ground.
-
-CELIA Cry 'holla' to thy tongue, I prithee; it curvets
- unseasonably. He was furnished like a hunter.
-
-ROSALIND O, ominous! he comes to kill my heart.
-
-CELIA I would sing my song without a burden: thou bringest
- me out of tune.
-
-ROSALIND Do you not know I am a woman? when I think, I must
- speak. Sweet, say on.
-
-CELIA You bring me out. Soft! comes he not here?
-
- [Enter ORLANDO and JAQUES]
-
-ROSALIND 'Tis he: slink by, and note him.
-
-JAQUES I thank you for your company; but, good faith, I had
- as lief have been myself alone.
-
-ORLANDO And so had I; but yet, for fashion sake, I thank you
- too for your society.
-
-JAQUES God be wi' you: let's meet as little as we can.
-
-ORLANDO I do desire we may be better strangers.
-
-JAQUES I pray you, mar no more trees with writing
- love-songs in their barks.
-
-ORLANDO I pray you, mar no more of my verses with reading
- them ill-favouredly.
-
-JAQUES Rosalind is your love's name?
-
-ORLANDO Yes, just.
-
-JAQUES I do not like her name.
-
-ORLANDO There was no thought of pleasing you when she was
- christened.
-
-JAQUES What stature is she of?
-
-ORLANDO Just as high as my heart.
-
-JAQUES You are full of pretty answers. Have you not been
- acquainted with goldsmiths' wives, and conned them
- out of rings?
-
-ORLANDO Not so; but I answer you right painted cloth, from
- whence you have studied your questions.
-
-JAQUES You have a nimble wit: I think 'twas made of
- Atalanta's heels. Will you sit down with me? and
- we two will rail against our mistress the world and
- all our misery.
-
-ORLANDO I will chide no breather in the world but myself,
- against whom I know most faults.
-
-JAQUES The worst fault you have is to be in love.
-
-ORLANDO 'Tis a fault I will not change for your best virtue.
- I am weary of you.
-
-JAQUES By my troth, I was seeking for a fool when I found
- you.
-
-ORLANDO He is drowned in the brook: look but in, and you
- shall see him.
-
-JAQUES There I shall see mine own figure.
-
-ORLANDO Which I take to be either a fool or a cipher.
-
-JAQUES I'll tarry no longer with you: farewell, good
- Signior Love.
-
-ORLANDO I am glad of your departure: adieu, good Monsieur
- Melancholy.
-
- [Exit JAQUES]
-
-ROSALIND [Aside to CELIA] I will speak to him, like a saucy
- lackey and under that habit play the knave with him.
- Do you hear, forester?
-
-ORLANDO Very well: what would you?
-
-ROSALIND I pray you, what is't o'clock?
-
-ORLANDO You should ask me what time o' day: there's no clock
- in the forest.
-
-ROSALIND Then there is no true lover in the forest; else
- sighing every minute and groaning every hour would
- detect the lazy foot of Time as well as a clock.
-
-ORLANDO And why not the swift foot of Time? had not that
- been as proper?
-
-ROSALIND By no means, sir: Time travels in divers paces with
- divers persons. I'll tell you who Time ambles
- withal, who Time trots withal, who Time gallops
- withal and who he stands still withal.
-
-ORLANDO I prithee, who doth he trot withal?
-
-ROSALIND Marry, he trots hard with a young maid between the
- contract of her marriage and the day it is
- solemnized: if the interim be but a se'nnight,
- Time's pace is so hard that it seems the length of
- seven year.
-
-ORLANDO Who ambles Time withal?
-
-ROSALIND With a priest that lacks Latin and a rich man that
- hath not the gout, for the one sleeps easily because
- he cannot study, and the other lives merrily because
- he feels no pain, the one lacking the burden of lean
- and wasteful learning, the other knowing no burden
- of heavy tedious penury; these Time ambles withal.
-
-ORLANDO Who doth he gallop withal?
-
-ROSALIND With a thief to the gallows, for though he go as
- softly as foot can fall, he thinks himself too soon there.
-
-ORLANDO Who stays it still withal?
-
-ROSALIND With lawyers in the vacation, for they sleep between
- term and term and then they perceive not how Time moves.
-
-ORLANDO Where dwell you, pretty youth?
-
-ROSALIND With this shepherdess, my sister; here in the
- skirts of the forest, like fringe upon a petticoat.
-
-ORLANDO Are you native of this place?
-
-ROSALIND As the cony that you see dwell where she is kindled.
-
-ORLANDO Your accent is something finer than you could
- purchase in so removed a dwelling.
-
-ROSALIND I have been told so of many: but indeed an old
- religious uncle of mine taught me to speak, who was
- in his youth an inland man; one that knew courtship
- too well, for there he fell in love. I have heard
- him read many lectures against it, and I thank God
- I am not a woman, to be touched with so many
- giddy offences as he hath generally taxed their
- whole sex withal.
-
-ORLANDO Can you remember any of the principal evils that he
- laid to the charge of women?
-
-ROSALIND There were none principal; they were all like one
- another as half-pence are, every one fault seeming
- monstrous till his fellow fault came to match it.
-
-ORLANDO I prithee, recount some of them.
-
-ROSALIND No, I will not cast away my physic but on those that
- are sick. There is a man haunts the forest, that
- abuses our young plants with carving 'Rosalind' on
- their barks; hangs odes upon hawthorns and elegies
- on brambles, all, forsooth, deifying the name of
- Rosalind: if I could meet that fancy-monger I would
- give him some good counsel, for he seems to have the
- quotidian of love upon him.
-
-ORLANDO I am he that is so love-shaked: I pray you tell me
- your remedy.
-
-ROSALIND There is none of my uncle's marks upon you: he
- taught me how to know a man in love; in which cage
- of rushes I am sure you are not prisoner.
-
-ORLANDO What were his marks?
-
-ROSALIND A lean cheek, which you have not, a blue eye and
- sunken, which you have not, an unquestionable
- spirit, which you have not, a beard neglected,
- which you have not; but I pardon you for that, for
- simply your having in beard is a younger brother's
- revenue: then your hose should be ungartered, your
- bonnet unbanded, your sleeve unbuttoned, your shoe
- untied and every thing about you demonstrating a
- careless desolation; but you are no such man; you
- are rather point-device in your accoutrements as
- loving yourself than seeming the lover of any other.
-
-ORLANDO Fair youth, I would I could make thee believe I love.
-
-ROSALIND Me believe it! you may as soon make her that you
- love believe it; which, I warrant, she is apter to
- do than to confess she does: that is one of the
- points in the which women still give the lie to
- their consciences. But, in good sooth, are you he
- that hangs the verses on the trees, wherein Rosalind
- is so admired?
-
-ORLANDO I swear to thee, youth, by the white hand of
- Rosalind, I am that he, that unfortunate he.
-
-ROSALIND But are you so much in love as your rhymes speak?
-
-ORLANDO Neither rhyme nor reason can express how much.
-
-ROSALIND Love is merely a madness, and, I tell you, deserves
- as well a dark house and a whip as madmen do: and
- the reason why they are not so punished and cured
- is, that the lunacy is so ordinary that the whippers
- are in love too. Yet I profess curing it by counsel.
-
-ORLANDO Did you ever cure any so?
-
-ROSALIND Yes, one, and in this manner. He was to imagine me
- his love, his mistress; and I set him every day to
- woo me: at which time would I, being but a moonish
- youth, grieve, be effeminate, changeable, longing
- and liking, proud, fantastical, apish, shallow,
- inconstant, full of tears, full of smiles, for every
- passion something and for no passion truly any
- thing, as boys and women are for the most part
- cattle of this colour; would now like him, now loathe
- him; then entertain him, then forswear him; now weep
- for him, then spit at him; that I drave my suitor
- from his mad humour of love to a living humour of
- madness; which was, to forswear the full stream of
- the world, and to live in a nook merely monastic.
- And thus I cured him; and this way will I take upon
- me to wash your liver as clean as a sound sheep's
- heart, that there shall not be one spot of love in't.
-
-ORLANDO I would not be cured, youth.
-
-ROSALIND I would cure you, if you would but call me Rosalind
- and come every day to my cote and woo me.
-
-ORLANDO Now, by the faith of my love, I will: tell me
- where it is.
-
-ROSALIND Go with me to it and I'll show it you and by the way
- you shall tell me where in the forest you live.
- Will you go?
-
-ORLANDO With all my heart, good youth.
-
-ROSALIND Nay you must call me Rosalind. Come, sister, will you go?
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT III
-
-
-
-SCENE III The forest.
-
-
- [Enter TOUCHSTONE and AUDREY; JAQUES behind]
-
-TOUCHSTONE Come apace, good Audrey: I will fetch up your
- goats, Audrey. And how, Audrey? am I the man yet?
- doth my simple feature content you?
-
-AUDREY Your features! Lord warrant us! what features!
-
-TOUCHSTONE I am here with thee and thy goats, as the most
- capricious poet, honest Ovid, was among the Goths.
-
-JAQUES [Aside] O knowledge ill-inhabited, worse than Jove
- in a thatched house!
-
-TOUCHSTONE When a man's verses cannot be understood, nor a
- man's good wit seconded with the forward child
- Understanding, it strikes a man more dead than a
- great reckoning in a little room. Truly, I would
- the gods had made thee poetical.
-
-AUDREY I do not know what 'poetical' is: is it honest in
- deed and word? is it a true thing?
-
-TOUCHSTONE No, truly; for the truest poetry is the most
- feigning; and lovers are given to poetry, and what
- they swear in poetry may be said as lovers they do feign.
-
-AUDREY Do you wish then that the gods had made me poetical?
-
-TOUCHSTONE I do, truly; for thou swearest to me thou art
- honest: now, if thou wert a poet, I might have some
- hope thou didst feign.
-
-AUDREY Would you not have me honest?
-
-TOUCHSTONE No, truly, unless thou wert hard-favoured; for
- honesty coupled to beauty is to have honey a sauce to sugar.
-
-JAQUES [Aside] A material fool!
-
-AUDREY Well, I am not fair; and therefore I pray the gods
- make me honest.
-
-TOUCHSTONE Truly, and to cast away honesty upon a foul slut
- were to put good meat into an unclean dish.
-
-AUDREY I am not a slut, though I thank the gods I am foul.
-
-TOUCHSTONE Well, praised be the gods for thy foulness!
- sluttishness may come hereafter. But be it as it may
- be, I will marry thee, and to that end I have been
- with Sir Oliver Martext, the vicar of the next
- village, who hath promised to meet me in this place
- of the forest and to couple us.
-
-JAQUES [Aside] I would fain see this meeting.
-
-AUDREY Well, the gods give us joy!
-
-TOUCHSTONE Amen. A man may, if he were of a fearful heart,
- stagger in this attempt; for here we have no temple
- but the wood, no assembly but horn-beasts. But what
- though? Courage! As horns are odious, they are
- necessary. It is said, 'many a man knows no end of
- his goods:' right; many a man has good horns, and
- knows no end of them. Well, that is the dowry of
- his wife; 'tis none of his own getting. Horns?
- Even so. Poor men alone? No, no; the noblest deer
- hath them as huge as the rascal. Is the single man
- therefore blessed? No: as a walled town is more
- worthier than a village, so is the forehead of a
- married man more honourable than the bare brow of a
- bachelor; and by how much defence is better than no
- skill, by so much is a horn more precious than to
- want. Here comes Sir Oliver.
-
- [Enter SIR OLIVER MARTEXT]
-
- Sir Oliver Martext, you are well met: will you
- dispatch us here under this tree, or shall we go
- with you to your chapel?
-
-SIR OLIVER MARTEXT Is there none here to give the woman?
-
-TOUCHSTONE I will not take her on gift of any man.
-
-SIR OLIVER MARTEXT Truly, she must be given, or the marriage is not lawful.
-
-JAQUES [Advancing]
-
- Proceed, proceed I'll give her.
-
-TOUCHSTONE Good even, good Master What-ye-call't: how do you,
- sir? You are very well met: God 'ild you for your
- last company: I am very glad to see you: even a
- toy in hand here, sir: nay, pray be covered.
-
-JAQUES Will you be married, motley?
-
-TOUCHSTONE As the ox hath his bow, sir, the horse his curb and
- the falcon her bells, so man hath his desires; and
- as pigeons bill, so wedlock would be nibbling.
-
-JAQUES And will you, being a man of your breeding, be
- married under a bush like a beggar? Get you to
- church, and have a good priest that can tell you
- what marriage is: this fellow will but join you
- together as they join wainscot; then one of you will
- prove a shrunk panel and, like green timber, warp, warp.
-
-TOUCHSTONE [Aside] I am not in the mind but I were better to be
- married of him than of another: for he is not like
- to marry me well; and not being well married, it
- will be a good excuse for me hereafter to leave my wife.
-
-JAQUES Go thou with me, and let me counsel thee.
-
-TOUCHSTONE 'Come, sweet Audrey:
- We must be married, or we must live in bawdry.
- Farewell, good Master Oliver: not,--
- O sweet Oliver,
- O brave Oliver,
- Leave me not behind thee: but,--
- Wind away,
- Begone, I say,
- I will not to wedding with thee.
-
- [Exeunt JAQUES, TOUCHSTONE and AUDREY]
-
-SIR OLIVER MARTEXT 'Tis no matter: ne'er a fantastical knave of them
- all shall flout me out of my calling.
-
- [Exit]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT III
-
-
-
-SCENE IV The forest.
-
-
- [Enter ROSALIND and CELIA]
-
-ROSALIND Never talk to me; I will weep.
-
-CELIA Do, I prithee; but yet have the grace to consider
- that tears do not become a man.
-
-ROSALIND But have I not cause to weep?
-
-CELIA As good cause as one would desire; therefore weep.
-
-ROSALIND His very hair is of the dissembling colour.
-
-CELIA Something browner than Judas's marry, his kisses are
- Judas's own children.
-
-ROSALIND I' faith, his hair is of a good colour.
-
-CELIA An excellent colour: your chestnut was ever the only colour.
-
-ROSALIND And his kissing is as full of sanctity as the touch
- of holy bread.
-
-CELIA He hath bought a pair of cast lips of Diana: a nun
- of winter's sisterhood kisses not more religiously;
- the very ice of chastity is in them.
-
-ROSALIND But why did he swear he would come this morning, and
- comes not?
-
-CELIA Nay, certainly, there is no truth in him.
-
-ROSALIND Do you think so?
-
-CELIA Yes; I think he is not a pick-purse nor a
- horse-stealer, but for his verity in love, I do
- think him as concave as a covered goblet or a
- worm-eaten nut.
-
-ROSALIND Not true in love?
-
-CELIA Yes, when he is in; but I think he is not in.
-
-ROSALIND You have heard him swear downright he was.
-
-CELIA 'Was' is not 'is:' besides, the oath of a lover is
- no stronger than the word of a tapster; they are
- both the confirmer of false reckonings. He attends
- here in the forest on the duke your father.
-
-ROSALIND I met the duke yesterday and had much question with
- him: he asked me of what parentage I was; I told
- him, of as good as he; so he laughed and let me go.
- But what talk we of fathers, when there is such a
- man as Orlando?
-
-CELIA O, that's a brave man! he writes brave verses,
- speaks brave words, swears brave oaths and breaks
- them bravely, quite traverse, athwart the heart of
- his lover; as a puisny tilter, that spurs his horse
- but on one side, breaks his staff like a noble
- goose: but all's brave that youth mounts and folly
- guides. Who comes here?
-
- [Enter CORIN]
-
-CORIN Mistress and master, you have oft inquired
- After the shepherd that complain'd of love,
- Who you saw sitting by me on the turf,
- Praising the proud disdainful shepherdess
- That was his mistress.
-
-CELIA Well, and what of him?
-
-CORIN If you will see a pageant truly play'd,
- Between the pale complexion of true love
- And the red glow of scorn and proud disdain,
- Go hence a little and I shall conduct you,
- If you will mark it.
-
-ROSALIND O, come, let us remove:
- The sight of lovers feedeth those in love.
- Bring us to this sight, and you shall say
- I'll prove a busy actor in their play.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT III
-
-
-
-SCENE V Another part of the forest.
-
-
- [Enter SILVIUS and PHEBE]
-
-SILVIUS Sweet Phebe, do not scorn me; do not, Phebe;
- Say that you love me not, but say not so
- In bitterness. The common executioner,
- Whose heart the accustom'd sight of death makes hard,
- Falls not the axe upon the humbled neck
- But first begs pardon: will you sterner be
- Than he that dies and lives by bloody drops?
-
- [Enter ROSALIND, CELIA, and CORIN, behind]
-
-PHEBE I would not be thy executioner:
- I fly thee, for I would not injure thee.
- Thou tell'st me there is murder in mine eye:
- 'Tis pretty, sure, and very probable,
- That eyes, that are the frail'st and softest things,
- Who shut their coward gates on atomies,
- Should be call'd tyrants, butchers, murderers!
- Now I do frown on thee with all my heart;
- And if mine eyes can wound, now let them kill thee:
- Now counterfeit to swoon; why now fall down;
- Or if thou canst not, O, for shame, for shame,
- Lie not, to say mine eyes are murderers!
- Now show the wound mine eye hath made in thee:
- Scratch thee but with a pin, and there remains
- Some scar of it; lean but upon a rush,
- The cicatrice and capable impressure
- Thy palm some moment keeps; but now mine eyes,
- Which I have darted at thee, hurt thee not,
- Nor, I am sure, there is no force in eyes
- That can do hurt.
-
-SILVIUS O dear Phebe,
- If ever,--as that ever may be near,--
- You meet in some fresh cheek the power of fancy,
- Then shall you know the wounds invisible
- That love's keen arrows make.
-
-PHEBE But till that time
- Come not thou near me: and when that time comes,
- Afflict me with thy mocks, pity me not;
- As till that time I shall not pity thee.
-
-ROSALIND And why, I pray you? Who might be your mother,
- That you insult, exult, and all at once,
- Over the wretched? What though you have no beauty,--
- As, by my faith, I see no more in you
- Than without candle may go dark to bed--
- Must you be therefore proud and pitiless?
- Why, what means this? Why do you look on me?
- I see no more in you than in the ordinary
- Of nature's sale-work. 'Od's my little life,
- I think she means to tangle my eyes too!
- No, faith, proud mistress, hope not after it:
- 'Tis not your inky brows, your black silk hair,
- Your bugle eyeballs, nor your cheek of cream,
- That can entame my spirits to your worship.
- You foolish shepherd, wherefore do you follow her,
- Like foggy south puffing with wind and rain?
- You are a thousand times a properer man
- Than she a woman: 'tis such fools as you
- That makes the world full of ill-favour'd children:
- 'Tis not her glass, but you, that flatters her;
- And out of you she sees herself more proper
- Than any of her lineaments can show her.
- But, mistress, know yourself: down on your knees,
- And thank heaven, fasting, for a good man's love:
- For I must tell you friendly in your ear,
- Sell when you can: you are not for all markets:
- Cry the man mercy; love him; take his offer:
- Foul is most foul, being foul to be a scoffer.
- So take her to thee, shepherd: fare you well.
-
-PHEBE Sweet youth, I pray you, chide a year together:
- I had rather hear you chide than this man woo.
-
-ROSALIND He's fallen in love with your foulness and she'll
- fall in love with my anger. If it be so, as fast as
- she answers thee with frowning looks, I'll sauce her
- with bitter words. Why look you so upon me?
-
-PHEBE For no ill will I bear you.
-
-ROSALIND I pray you, do not fall in love with me,
- For I am falser than vows made in wine:
- Besides, I like you not. If you will know my house,
- 'Tis at the tuft of olives here hard by.
- Will you go, sister? Shepherd, ply her hard.
- Come, sister. Shepherdess, look on him better,
- And be not proud: though all the world could see,
- None could be so abused in sight as he.
- Come, to our flock.
-
- [Exeunt ROSALIND, CELIA and CORIN]
-
-PHEBE Dead Shepherd, now I find thy saw of might,
- 'Who ever loved that loved not at first sight?'
-
-SILVIUS Sweet Phebe,--
-
-PHEBE Ha, what say'st thou, Silvius?
-
-SILVIUS Sweet Phebe, pity me.
-
-PHEBE Why, I am sorry for thee, gentle Silvius.
-
-SILVIUS Wherever sorrow is, relief would be:
- If you do sorrow at my grief in love,
- By giving love your sorrow and my grief
- Were both extermined.
-
-PHEBE Thou hast my love: is not that neighbourly?
-
-SILVIUS I would have you.
-
-PHEBE Why, that were covetousness.
- Silvius, the time was that I hated thee,
- And yet it is not that I bear thee love;
- But since that thou canst talk of love so well,
- Thy company, which erst was irksome to me,
- I will endure, and I'll employ thee too:
- But do not look for further recompense
- Than thine own gladness that thou art employ'd.
-
-SILVIUS So holy and so perfect is my love,
- And I in such a poverty of grace,
- That I shall think it a most plenteous crop
- To glean the broken ears after the man
- That the main harvest reaps: loose now and then
- A scatter'd smile, and that I'll live upon.
-
-PHEBE Know'st now the youth that spoke to me erewhile?
-
-SILVIUS Not very well, but I have met him oft;
- And he hath bought the cottage and the bounds
- That the old carlot once was master of.
-
-PHEBE Think not I love him, though I ask for him:
- 'Tis but a peevish boy; yet he talks well;
- But what care I for words? yet words do well
- When he that speaks them pleases those that hear.
- It is a pretty youth: not very pretty:
- But, sure, he's proud, and yet his pride becomes him:
- He'll make a proper man: the best thing in him
- Is his complexion; and faster than his tongue
- Did make offence his eye did heal it up.
- He is not very tall; yet for his years he's tall:
- His leg is but so so; and yet 'tis well:
- There was a pretty redness in his lip,
- A little riper and more lusty red
- Than that mix'd in his cheek; 'twas just the difference
- Between the constant red and mingled damask.
- There be some women, Silvius, had they mark'd him
- In parcels as I did, would have gone near
- To fall in love with him; but, for my part,
- I love him not nor hate him not; and yet
- I have more cause to hate him than to love him:
- For what had he to do to chide at me?
- He said mine eyes were black and my hair black:
- And, now I am remember'd, scorn'd at me:
- I marvel why I answer'd not again:
- But that's all one; omittance is no quittance.
- I'll write to him a very taunting letter,
- And thou shalt bear it: wilt thou, Silvius?
-
-SILVIUS Phebe, with all my heart.
-
-PHEBE I'll write it straight;
- The matter's in my head and in my heart:
- I will be bitter with him and passing short.
- Go with me, Silvius.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT IV
-
-
-
-SCENE I The forest.
-
-
- [Enter ROSALIND, CELIA, and JAQUES]
-
-JAQUES I prithee, pretty youth, let me be better acquainted
- with thee.
-
-ROSALIND They say you are a melancholy fellow.
-
-JAQUES I am so; I do love it better than laughing.
-
-ROSALIND Those that are in extremity of either are abominable
- fellows and betray themselves to every modern
- censure worse than drunkards.
-
-JAQUES Why, 'tis good to be sad and say nothing.
-
-ROSALIND Why then, 'tis good to be a post.
-
-JAQUES I have neither the scholar's melancholy, which is
- emulation, nor the musician's, which is fantastical,
- nor the courtier's, which is proud, nor the
- soldier's, which is ambitious, nor the lawyer's,
- which is politic, nor the lady's, which is nice, nor
- the lover's, which is all these: but it is a
- melancholy of mine own, compounded of many simples,
- extracted from many objects, and indeed the sundry's
- contemplation of my travels, in which my often
- rumination wraps me m a most humorous sadness.
-
-ROSALIND A traveller! By my faith, you have great reason to
- be sad: I fear you have sold your own lands to see
- other men's; then, to have seen much and to have
- nothing, is to have rich eyes and poor hands.
-
-JAQUES Yes, I have gained my experience.
-
-ROSALIND And your experience makes you sad: I had rather have
- a fool to make me merry than experience to make me
- sad; and to travel for it too!
-
- [Enter ORLANDO]
-
-ORLANDO Good day and happiness, dear Rosalind!
-
-JAQUES Nay, then, God be wi' you, an you talk in blank verse.
-
- [Exit]
-
-ROSALIND Farewell, Monsieur Traveller: look you lisp and
- wear strange suits, disable all the benefits of your
- own country, be out of love with your nativity and
- almost chide God for making you that countenance you
- are, or I will scarce think you have swam in a
- gondola. Why, how now, Orlando! where have you been
- all this while? You a lover! An you serve me such
- another trick, never come in my sight more.
-
-ORLANDO My fair Rosalind, I come within an hour of my promise.
-
-ROSALIND Break an hour's promise in love! He that will
- divide a minute into a thousand parts and break but
- a part of the thousandth part of a minute in the
- affairs of love, it may be said of him that Cupid
- hath clapped him o' the shoulder, but I'll warrant
- him heart-whole.
-
-ORLANDO Pardon me, dear Rosalind.
-
-ROSALIND Nay, an you be so tardy, come no more in my sight: I
- had as lief be wooed of a snail.
-
-ORLANDO Of a snail?
-
-ROSALIND Ay, of a snail; for though he comes slowly, he
- carries his house on his head; a better jointure,
- I think, than you make a woman: besides he brings
- his destiny with him.
-
-ORLANDO What's that?
-
-ROSALIND Why, horns, which such as you are fain to be
- beholding to your wives for: but he comes armed in
- his fortune and prevents the slander of his wife.
-
-ORLANDO Virtue is no horn-maker; and my Rosalind is virtuous.
-
-ROSALIND And I am your Rosalind.
-
-CELIA It pleases him to call you so; but he hath a
- Rosalind of a better leer than you.
-
-ROSALIND Come, woo me, woo me, for now I am in a holiday
- humour and like enough to consent. What would you
- say to me now, an I were your very very Rosalind?
-
-ORLANDO I would kiss before I spoke.
-
-ROSALIND Nay, you were better speak first, and when you were
- gravelled for lack of matter, you might take
- occasion to kiss. Very good orators, when they are
- out, they will spit; and for lovers lacking--God
- warn us!--matter, the cleanliest shift is to kiss.
-
-ORLANDO How if the kiss be denied?
-
-ROSALIND Then she puts you to entreaty, and there begins new matter.
-
-ORLANDO Who could be out, being before his beloved mistress?
-
-ROSALIND Marry, that should you, if I were your mistress, or
- I should think my honesty ranker than my wit.
-
-ORLANDO What, of my suit?
-
-ROSALIND Not out of your apparel, and yet out of your suit.
- Am not I your Rosalind?
-
-ORLANDO I take some joy to say you are, because I would be
- talking of her.
-
-ROSALIND Well in her person I say I will not have you.
-
-ORLANDO Then in mine own person I die.
-
-ROSALIND No, faith, die by attorney. The poor world is
- almost six thousand years old, and in all this time
- there was not any man died in his own person,
- videlicit, in a love-cause. Troilus had his brains
- dashed out with a Grecian club; yet he did what he
- could to die before, and he is one of the patterns
- of love. Leander, he would have lived many a fair
- year, though Hero had turned nun, if it had not been
- for a hot midsummer night; for, good youth, he went
- but forth to wash him in the Hellespont and being
- taken with the cramp was drowned and the foolish
- coroners of that age found it was 'Hero of Sestos.'
- But these are all lies: men have died from time to
- time and worms have eaten them, but not for love.
-
-ORLANDO I would not have my right Rosalind of this mind,
- for, I protest, her frown might kill me.
-
-ROSALIND By this hand, it will not kill a fly. But come, now
- I will be your Rosalind in a more coming-on
- disposition, and ask me what you will. I will grant
- it.
-
-ORLANDO Then love me, Rosalind.
-
-ROSALIND Yes, faith, will I, Fridays and Saturdays and all.
-
-ORLANDO And wilt thou have me?
-
-ROSALIND Ay, and twenty such.
-
-ORLANDO What sayest thou?
-
-ROSALIND Are you not good?
-
-ORLANDO I hope so.
-
-ROSALIND Why then, can one desire too much of a good thing?
- Come, sister, you shall be the priest and marry us.
- Give me your hand, Orlando. What do you say, sister?
-
-ORLANDO Pray thee, marry us.
-
-CELIA I cannot say the words.
-
-ROSALIND You must begin, 'Will you, Orlando--'
-
-CELIA Go to. Will you, Orlando, have to wife this Rosalind?
-
-ORLANDO I will.
-
-ROSALIND Ay, but when?
-
-ORLANDO Why now; as fast as she can marry us.
-
-ROSALIND Then you must say 'I take thee, Rosalind, for wife.'
-
-ORLANDO I take thee, Rosalind, for wife.
-
-ROSALIND I might ask you for your commission; but I do take
- thee, Orlando, for my husband: there's a girl goes
- before the priest; and certainly a woman's thought
- runs before her actions.
-
-ORLANDO So do all thoughts; they are winged.
-
-ROSALIND Now tell me how long you would have her after you
- have possessed her.
-
-ORLANDO For ever and a day.
-
-ROSALIND Say 'a day,' without the 'ever.' No, no, Orlando;
- men are April when they woo, December when they wed:
- maids are May when they are maids, but the sky
- changes when they are wives. I will be more jealous
- of thee than a Barbary cock-pigeon over his hen,
- more clamorous than a parrot against rain, more
- new-fangled than an ape, more giddy in my desires
- than a monkey: I will weep for nothing, like Diana
- in the fountain, and I will do that when you are
- disposed to be merry; I will laugh like a hyen, and
- that when thou art inclined to sleep.
-
-ORLANDO But will my Rosalind do so?
-
-ROSALIND By my life, she will do as I do.
-
-ORLANDO O, but she is wise.
-
-ROSALIND Or else she could not have the wit to do this: the
- wiser, the waywarder: make the doors upon a woman's
- wit and it will out at the casement; shut that and
- 'twill out at the key-hole; stop that, 'twill fly
- with the smoke out at the chimney.
-
-ORLANDO A man that had a wife with such a wit, he might say
- 'Wit, whither wilt?'
-
-ROSALIND Nay, you might keep that cheque for it till you met
- your wife's wit going to your neighbour's bed.
-
-ORLANDO And what wit could wit have to excuse that?
-
-ROSALIND Marry, to say she came to seek you there. You shall
- never take her without her answer, unless you take
- her without her tongue. O, that woman that cannot
- make her fault her husband's occasion, let her
- never nurse her child herself, for she will breed
- it like a fool!
-
-ORLANDO For these two hours, Rosalind, I will leave thee.
-
-ROSALIND Alas! dear love, I cannot lack thee two hours.
-
-ORLANDO I must attend the duke at dinner: by two o'clock I
- will be with thee again.
-
-ROSALIND Ay, go your ways, go your ways; I knew what you
- would prove: my friends told me as much, and I
- thought no less: that flattering tongue of yours
- won me: 'tis but one cast away, and so, come,
- death! Two o'clock is your hour?
-
-ORLANDO Ay, sweet Rosalind.
-
-ROSALIND By my troth, and in good earnest, and so God mend
- me, and by all pretty oaths that are not dangerous,
- if you break one jot of your promise or come one
- minute behind your hour, I will think you the most
- pathetical break-promise and the most hollow lover
- and the most unworthy of her you call Rosalind that
- may be chosen out of the gross band of the
- unfaithful: therefore beware my censure and keep
- your promise.
-
-ORLANDO With no less religion than if thou wert indeed my
- Rosalind: so adieu.
-
-ROSALIND Well, Time is the old justice that examines all such
- offenders, and let Time try: adieu.
-
- [Exit ORLANDO]
-
-CELIA You have simply misused our sex in your love-prate:
- we must have your doublet and hose plucked over your
- head, and show the world what the bird hath done to
- her own nest.
-
-ROSALIND O coz, coz, coz, my pretty little coz, that thou
- didst know how many fathom deep I am in love! But
- it cannot be sounded: my affection hath an unknown
- bottom, like the bay of Portugal.
-
-CELIA Or rather, bottomless, that as fast as you pour
- affection in, it runs out.
-
-ROSALIND No, that same wicked bastard of Venus that was begot
- of thought, conceived of spleen and born of madness,
- that blind rascally boy that abuses every one's eyes
- because his own are out, let him be judge how deep I
- am in love. I'll tell thee, Aliena, I cannot be out
- of the sight of Orlando: I'll go find a shadow and
- sigh till he come.
-
-CELIA And I'll sleep.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT IV
-
-
-
-SCENE II The forest.
-
-
- [Enter JAQUES, Lords, and Foresters]
-
-JAQUES Which is he that killed the deer?
-
-A Lord Sir, it was I.
-
-JAQUES Let's present him to the duke, like a Roman
- conqueror; and it would do well to set the deer's
- horns upon his head, for a branch of victory. Have
- you no song, forester, for this purpose?
-
-Forester Yes, sir.
-
-JAQUES Sing it: 'tis no matter how it be in tune, so it
- make noise enough.
-
- SONG.
-Forester What shall he have that kill'd the deer?
- His leather skin and horns to wear.
- Then sing him home;
-
- [The rest shall bear this burden]
-
- Take thou no scorn to wear the horn;
- It was a crest ere thou wast born:
- Thy father's father wore it,
- And thy father bore it:
- The horn, the horn, the lusty horn
- Is not a thing to laugh to scorn.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT IV
-
-
-
-SCENE III The forest.
-
-
- [Enter ROSALIND and CELIA]
-
-ROSALIND How say you now? Is it not past two o'clock? and
- here much Orlando!
-
-CELIA I warrant you, with pure love and troubled brain, he
- hath ta'en his bow and arrows and is gone forth to
- sleep. Look, who comes here.
-
- [Enter SILVIUS]
-
-SILVIUS My errand is to you, fair youth;
- My gentle Phebe bid me give you this:
- I know not the contents; but, as I guess
- By the stern brow and waspish action
- Which she did use as she was writing of it,
- It bears an angry tenor: pardon me:
- I am but as a guiltless messenger.
-
-ROSALIND Patience herself would startle at this letter
- And play the swaggerer; bear this, bear all:
- She says I am not fair, that I lack manners;
- She calls me proud, and that she could not love me,
- Were man as rare as phoenix. 'Od's my will!
- Her love is not the hare that I do hunt:
- Why writes she so to me? Well, shepherd, well,
- This is a letter of your own device.
-
-SILVIUS No, I protest, I know not the contents:
- Phebe did write it.
-
-ROSALIND Come, come, you are a fool
- And turn'd into the extremity of love.
- I saw her hand: she has a leathern hand.
- A freestone-colour'd hand; I verily did think
- That her old gloves were on, but 'twas her hands:
- She has a huswife's hand; but that's no matter:
- I say she never did invent this letter;
- This is a man's invention and his hand.
-
-SILVIUS Sure, it is hers.
-
-ROSALIND Why, 'tis a boisterous and a cruel style.
- A style for-challengers; why, she defies me,
- Like Turk to Christian: women's gentle brain
- Could not drop forth such giant-rude invention
- Such Ethiope words, blacker in their effect
- Than in their countenance. Will you hear the letter?
-
-SILVIUS So please you, for I never heard it yet;
- Yet heard too much of Phebe's cruelty.
-
-ROSALIND She Phebes me: mark how the tyrant writes.
-
- [Reads]
-
- Art thou god to shepherd turn'd,
- That a maiden's heart hath burn'd?
- Can a woman rail thus?
-
-SILVIUS Call you this railing?
-
-ROSALIND [Reads]
-
- Why, thy godhead laid apart,
- Warr'st thou with a woman's heart?
- Did you ever hear such railing?
- Whiles the eye of man did woo me,
- That could do no vengeance to me.
- Meaning me a beast.
- If the scorn of your bright eyne
- Have power to raise such love in mine,
- Alack, in me what strange effect
- Would they work in mild aspect!
- Whiles you chid me, I did love;
- How then might your prayers move!
- He that brings this love to thee
- Little knows this love in me:
- And by him seal up thy mind;
- Whether that thy youth and kind
- Will the faithful offer take
- Of me and all that I can make;
- Or else by him my love deny,
- And then I'll study how to die.
-
-SILVIUS Call you this chiding?
-
-CELIA Alas, poor shepherd!
-
-ROSALIND Do you pity him? no, he deserves no pity. Wilt
- thou love such a woman? What, to make thee an
- instrument and play false strains upon thee! not to
- be endured! Well, go your way to her, for I see
- love hath made thee a tame snake, and say this to
- her: that if she love me, I charge her to love
- thee; if she will not, I will never have her unless
- thou entreat for her. If you be a true lover,
- hence, and not a word; for here comes more company.
-
- [Exit SILVIUS]
-
- [Enter OLIVER]
-
-OLIVER Good morrow, fair ones: pray you, if you know,
- Where in the purlieus of this forest stands
- A sheep-cote fenced about with olive trees?
-
-CELIA West of this place, down in the neighbour bottom:
- The rank of osiers by the murmuring stream
- Left on your right hand brings you to the place.
- But at this hour the house doth keep itself;
- There's none within.
-
-OLIVER If that an eye may profit by a tongue,
- Then should I know you by description;
- Such garments and such years: 'The boy is fair,
- Of female favour, and bestows himself
- Like a ripe sister: the woman low
- And browner than her brother.' Are not you
- The owner of the house I did inquire for?
-
-CELIA It is no boast, being ask'd, to say we are.
-
-OLIVER Orlando doth commend him to you both,
- And to that youth he calls his Rosalind
- He sends this bloody napkin. Are you he?
-
-ROSALIND I am: what must we understand by this?
-
-OLIVER Some of my shame; if you will know of me
- What man I am, and how, and why, and where
- This handkercher was stain'd.
-
-CELIA I pray you, tell it.
-
-OLIVER When last the young Orlando parted from you
- He left a promise to return again
- Within an hour, and pacing through the forest,
- Chewing the food of sweet and bitter fancy,
- Lo, what befell! he threw his eye aside,
- And mark what object did present itself:
- Under an oak, whose boughs were moss'd with age
- And high top bald with dry antiquity,
- A wretched ragged man, o'ergrown with hair,
- Lay sleeping on his back: about his neck
- A green and gilded snake had wreathed itself,
- Who with her head nimble in threats approach'd
- The opening of his mouth; but suddenly,
- Seeing Orlando, it unlink'd itself,
- And with indented glides did slip away
- Into a bush: under which bush's shade
- A lioness, with udders all drawn dry,
- Lay couching, head on ground, with catlike watch,
- When that the sleeping man should stir; for 'tis
- The royal disposition of that beast
- To prey on nothing that doth seem as dead:
- This seen, Orlando did approach the man
- And found it was his brother, his elder brother.
-
-CELIA O, I have heard him speak of that same brother;
- And he did render him the most unnatural
- That lived amongst men.
-
-OLIVER And well he might so do,
- For well I know he was unnatural.
-
-ROSALIND But, to Orlando: did he leave him there,
- Food to the suck'd and hungry lioness?
-
-OLIVER Twice did he turn his back and purposed so;
- But kindness, nobler ever than revenge,
- And nature, stronger than his just occasion,
- Made him give battle to the lioness,
- Who quickly fell before him: in which hurtling
- From miserable slumber I awaked.
-
-CELIA Are you his brother?
-
-ROSALIND Wast you he rescued?
-
-CELIA Was't you that did so oft contrive to kill him?
-
-OLIVER 'Twas I; but 'tis not I I do not shame
- To tell you what I was, since my conversion
- So sweetly tastes, being the thing I am.
-
-ROSALIND But, for the bloody napkin?
-
-OLIVER By and by.
- When from the first to last betwixt us two
- Tears our recountments had most kindly bathed,
- As how I came into that desert place:--
- In brief, he led me to the gentle duke,
- Who gave me fresh array and entertainment,
- Committing me unto my brother's love;
- Who led me instantly unto his cave,
- There stripp'd himself, and here upon his arm
- The lioness had torn some flesh away,
- Which all this while had bled; and now he fainted
- And cried, in fainting, upon Rosalind.
- Brief, I recover'd him, bound up his wound;
- And, after some small space, being strong at heart,
- He sent me hither, stranger as I am,
- To tell this story, that you might excuse
- His broken promise, and to give this napkin
- Dyed in his blood unto the shepherd youth
- That he in sport doth call his Rosalind.
-
- [ROSALIND swoons]
-
-CELIA Why, how now, Ganymede! sweet Ganymede!
-
-OLIVER Many will swoon when they do look on blood.
-
-CELIA There is more in it. Cousin Ganymede!
-
-OLIVER Look, he recovers.
-
-ROSALIND I would I were at home.
-
-CELIA We'll lead you thither.
- I pray you, will you take him by the arm?
-
-OLIVER Be of good cheer, youth: you a man! you lack a
- man's heart.
-
-ROSALIND I do so, I confess it. Ah, sirrah, a body would
- think this was well counterfeited! I pray you, tell
- your brother how well I counterfeited. Heigh-ho!
-
-OLIVER This was not counterfeit: there is too great
- testimony in your complexion that it was a passion
- of earnest.
-
-ROSALIND Counterfeit, I assure you.
-
-OLIVER Well then, take a good heart and counterfeit to be a man.
-
-ROSALIND So I do: but, i' faith, I should have been a woman by right.
-
-CELIA Come, you look paler and paler: pray you, draw
- homewards. Good sir, go with us.
-
-OLIVER That will I, for I must bear answer back
- How you excuse my brother, Rosalind.
-
-ROSALIND I shall devise something: but, I pray you, commend
- my counterfeiting to him. Will you go?
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT V
-
-
-
-SCENE I The forest.
-
-
- [Enter TOUCHSTONE and AUDREY]
-
-TOUCHSTONE We shall find a time, Audrey; patience, gentle Audrey.
-
-AUDREY Faith, the priest was good enough, for all the old
- gentleman's saying.
-
-TOUCHSTONE A most wicked Sir Oliver, Audrey, a most vile
- Martext. But, Audrey, there is a youth here in the
- forest lays claim to you.
-
-AUDREY Ay, I know who 'tis; he hath no interest in me in
- the world: here comes the man you mean.
-
-TOUCHSTONE It is meat and drink to me to see a clown: by my
- troth, we that have good wits have much to answer
- for; we shall be flouting; we cannot hold.
-
- [Enter WILLIAM]
-
-WILLIAM Good even, Audrey.
-
-AUDREY God ye good even, William.
-
-WILLIAM And good even to you, sir.
-
-TOUCHSTONE Good even, gentle friend. Cover thy head, cover thy
- head; nay, prithee, be covered. How old are you, friend?
-
-WILLIAM Five and twenty, sir.
-
-TOUCHSTONE A ripe age. Is thy name William?
-
-WILLIAM William, sir.
-
-TOUCHSTONE A fair name. Wast born i' the forest here?
-
-WILLIAM Ay, sir, I thank God.
-
-TOUCHSTONE 'Thank God;' a good answer. Art rich?
-
-WILLIAM Faith, sir, so so.
-
-TOUCHSTONE 'So so' is good, very good, very excellent good; and
- yet it is not; it is but so so. Art thou wise?
-
-WILLIAM Ay, sir, I have a pretty wit.
-
-TOUCHSTONE Why, thou sayest well. I do now remember a saying,
- 'The fool doth think he is wise, but the wise man
- knows himself to be a fool.' The heathen
- philosopher, when he had a desire to eat a grape,
- would open his lips when he put it into his mouth;
- meaning thereby that grapes were made to eat and
- lips to open. You do love this maid?
-
-WILLIAM I do, sir.
-
-TOUCHSTONE Give me your hand. Art thou learned?
-
-WILLIAM No, sir.
-
-TOUCHSTONE Then learn this of me: to have, is to have; for it
- is a figure in rhetoric that drink, being poured out
- of a cup into a glass, by filling the one doth empty
- the other; for all your writers do consent that ipse
- is he: now, you are not ipse, for I am he.
-
-WILLIAM Which he, sir?
-
-TOUCHSTONE He, sir, that must marry this woman. Therefore, you
- clown, abandon,--which is in the vulgar leave,--the
- society,--which in the boorish is company,--of this
- female,--which in the common is woman; which
- together is, abandon the society of this female, or,
- clown, thou perishest; or, to thy better
- understanding, diest; or, to wit I kill thee, make
- thee away, translate thy life into death, thy
- liberty into bondage: I will deal in poison with
- thee, or in bastinado, or in steel; I will bandy
- with thee in faction; I will o'errun thee with
- policy; I will kill thee a hundred and fifty ways:
- therefore tremble and depart.
-
-AUDREY Do, good William.
-
-WILLIAM God rest you merry, sir.
-
- [Exit]
-
- [Enter CORIN]
-
-CORIN Our master and mistress seeks you; come, away, away!
-
-TOUCHSTONE Trip, Audrey! trip, Audrey! I attend, I attend.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT V
-
-
-
-SCENE II The forest.
-
-
- [Enter ORLANDO and OLIVER]
-
-ORLANDO Is't possible that on so little acquaintance you
- should like her? that but seeing you should love
- her? and loving woo? and, wooing, she should
- grant? and will you persever to enjoy her?
-
-OLIVER Neither call the giddiness of it in question, the
- poverty of her, the small acquaintance, my sudden
- wooing, nor her sudden consenting; but say with me,
- I love Aliena; say with her that she loves me;
- consent with both that we may enjoy each other: it
- shall be to your good; for my father's house and all
- the revenue that was old Sir Rowland's will I
- estate upon you, and here live and die a shepherd.
-
-ORLANDO You have my consent. Let your wedding be to-morrow:
- thither will I invite the duke and all's contented
- followers. Go you and prepare Aliena; for look
- you, here comes my Rosalind.
-
- [Enter ROSALIND]
-
-ROSALIND God save you, brother.
-
-OLIVER And you, fair sister.
-
- [Exit]
-
-ROSALIND O, my dear Orlando, how it grieves me to see thee
- wear thy heart in a scarf!
-
-ORLANDO It is my arm.
-
-ROSALIND I thought thy heart had been wounded with the claws
- of a lion.
-
-ORLANDO Wounded it is, but with the eyes of a lady.
-
-ROSALIND Did your brother tell you how I counterfeited to
- swoon when he showed me your handkerchief?
-
-ORLANDO Ay, and greater wonders than that.
-
-ROSALIND O, I know where you are: nay, 'tis true: there was
- never any thing so sudden but the fight of two rams
- and Caesar's thrasonical brag of 'I came, saw, and
- overcame:' for your brother and my sister no sooner
- met but they looked, no sooner looked but they
- loved, no sooner loved but they sighed, no sooner
- sighed but they asked one another the reason, no
- sooner knew the reason but they sought the remedy;
- and in these degrees have they made a pair of stairs
- to marriage which they will climb incontinent, or
- else be incontinent before marriage: they are in
- the very wrath of love and they will together; clubs
- cannot part them.
-
-ORLANDO They shall be married to-morrow, and I will bid the
- duke to the nuptial. But, O, how bitter a thing it
- is to look into happiness through another man's
- eyes! By so much the more shall I to-morrow be at
- the height of heart-heaviness, by how much I shall
- think my brother happy in having what he wishes for.
-
-ROSALIND Why then, to-morrow I cannot serve your turn for Rosalind?
-
-ORLANDO I can live no longer by thinking.
-
-ROSALIND I will weary you then no longer with idle talking.
- Know of me then, for now I speak to some purpose,
- that I know you are a gentleman of good conceit: I
- speak not this that you should bear a good opinion
- of my knowledge, insomuch I say I know you are;
- neither do I labour for a greater esteem than may in
- some little measure draw a belief from you, to do
- yourself good and not to grace me. Believe then, if
- you please, that I can do strange things: I have,
- since I was three year old, conversed with a
- magician, most profound in his art and yet not
- damnable. If you do love Rosalind so near the heart
- as your gesture cries it out, when your brother
- marries Aliena, shall you marry her: I know into
- what straits of fortune she is driven; and it is
- not impossible to me, if it appear not inconvenient
- to you, to set her before your eyes tomorrow human
- as she is and without any danger.
-
-ORLANDO Speakest thou in sober meanings?
-
-ROSALIND By my life, I do; which I tender dearly, though I
- say I am a magician. Therefore, put you in your
- best array: bid your friends; for if you will be
- married to-morrow, you shall, and to Rosalind, if you will.
-
- [Enter SILVIUS and PHEBE]
-
- Look, here comes a lover of mine and a lover of hers.
-
-PHEBE Youth, you have done me much ungentleness,
- To show the letter that I writ to you.
-
-ROSALIND I care not if I have: it is my study
- To seem despiteful and ungentle to you:
- You are there followed by a faithful shepherd;
- Look upon him, love him; he worships you.
-
-PHEBE Good shepherd, tell this youth what 'tis to love.
-
-SILVIUS It is to be all made of sighs and tears;
- And so am I for Phebe.
-
-PHEBE And I for Ganymede.
-
-ORLANDO And I for Rosalind.
-
-ROSALIND And I for no woman.
-
-SILVIUS It is to be all made of faith and service;
- And so am I for Phebe.
-
-PHEBE And I for Ganymede.
-
-ORLANDO And I for Rosalind.
-
-ROSALIND And I for no woman.
-
-SILVIUS It is to be all made of fantasy,
- All made of passion and all made of wishes,
- All adoration, duty, and observance,
- All humbleness, all patience and impatience,
- All purity, all trial, all observance;
- And so am I for Phebe.
-
-PHEBE And so am I for Ganymede.
-
-ORLANDO And so am I for Rosalind.
-
-ROSALIND And so am I for no woman.
-
-PHEBE If this be so, why blame you me to love you?
-
-SILVIUS If this be so, why blame you me to love you?
-
-ORLANDO If this be so, why blame you me to love you?
-
-ROSALIND Who do you speak to, 'Why blame you me to love you?'
-
-ORLANDO To her that is not here, nor doth not hear.
-
-ROSALIND Pray you, no more of this; 'tis like the howling
- of Irish wolves against the moon.
-
- [To SILVIUS]
-
- I will help you, if I can:
-
- [To PHEBE]
-
- I would love you, if I could. To-morrow meet me all together.
-
- [To PHEBE]
-
- I will marry you, if ever I marry woman, and I'll be
- married to-morrow:
-
- [To ORLANDO]
-
- I will satisfy you, if ever I satisfied man, and you
- shall be married to-morrow:
-
- [To SILVIUS]
-
- I will content you, if what pleases you contents
- you, and you shall be married to-morrow.
-
- [To ORLANDO]
-
- As you love Rosalind, meet:
-
- [To SILVIUS]
-
- as you love Phebe, meet: and as I love no woman,
- I'll meet. So fare you well: I have left you commands.
-
-SILVIUS I'll not fail, if I live.
-
-PHEBE Nor I.
-
-ORLANDO Nor I.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT V
-
-
-
-SCENE III The forest.
-
-
- [Enter TOUCHSTONE and AUDREY]
-
-TOUCHSTONE To-morrow is the joyful day, Audrey; to-morrow will
- we be married.
-
-AUDREY I do desire it with all my heart; and I hope it is
- no dishonest desire to desire to be a woman of the
- world. Here comes two of the banished duke's pages.
-
- [Enter two Pages]
-
-First Page Well met, honest gentleman.
-
-TOUCHSTONE By my troth, well met. Come, sit, sit, and a song.
-
-Second Page We are for you: sit i' the middle.
-
-First Page Shall we clap into't roundly, without hawking or
- spitting or saying we are hoarse, which are the only
- prologues to a bad voice?
-
-Second Page I'faith, i'faith; and both in a tune, like two
- gipsies on a horse.
-
- SONG.
- It was a lover and his lass,
- With a hey, and a ho, and a hey nonino,
- That o'er the green corn-field did pass
- In the spring time, the only pretty ring time,
- When birds do sing, hey ding a ding, ding:
- Sweet lovers love the spring.
-
- Between the acres of the rye,
- With a hey, and a ho, and a hey nonino
- These pretty country folks would lie,
- In spring time, &c.
-
- This carol they began that hour,
- With a hey, and a ho, and a hey nonino,
- How that a life was but a flower
- In spring time, &c.
-
- And therefore take the present time,
- With a hey, and a ho, and a hey nonino;
- For love is crowned with the prime
- In spring time, &c.
-
-TOUCHSTONE Truly, young gentlemen, though there was no great
- matter in the ditty, yet the note was very
- untuneable.
-
-First Page You are deceived, sir: we kept time, we lost not our time.
-
-TOUCHSTONE By my troth, yes; I count it but time lost to hear
- such a foolish song. God be wi' you; and God mend
- your voices! Come, Audrey.
-
- [Exeunt]
-
-
-
-
- AS YOU LIKE IT
-
-
-ACT V
-
-
-
-SCENE IV The forest.
-
-
- [Enter DUKE SENIOR, AMIENS, JAQUES, ORLANDO, OLIVER,
- and CELIA]
-
-DUKE SENIOR Dost thou believe, Orlando, that the boy
- Can do all this that he hath promised?
-
-ORLANDO I sometimes do believe, and sometimes do not;
- As those that fear they hope, and know they fear.
-
- [Enter ROSALIND, SILVIUS, and PHEBE]
-
-ROSALIND Patience once more, whiles our compact is urged:
- You say, if I bring in your Rosalind,
- You will bestow her on Orlando here?
-
-DUKE SENIOR That would I, had I kingdoms to give with her.
-
-ROSALIND And you say, you will have her, when I bring her?
-
-ORLANDO That would I, were I of all kingdoms king.
-
-ROSALIND You say, you'll marry me, if I be willing?
-
-PHEBE That will I, should I die the hour after.
-
-ROSALIND But if you do refuse to marry me,
- You'll give yourself to this most faithful shepherd?
-
-PHEBE So is the bargain.
-
-ROSALIND You say, that you'll have Phebe, if she will?
-
-SILVIUS Though to have her and death were both one thing.
-
-ROSALIND I have promised to make all this matter even.
- Keep you your word, O duke, to give your daughter;
- You yours, Orlando, to receive his daughter:
- Keep your word, Phebe, that you'll marry me,
- Or else refusing me, to wed this shepherd:
- Keep your word, Silvius, that you'll marry her.
- If she refuse me: and from hence I go,
- To make these doubts all even.
-
- [Exeunt ROSALIND and CELIA]
-
-DUKE SENIOR I do remember in this shepherd boy
- Some lively touches of my daughter's favour.
-
-ORLANDO My lord, the first time that I ever saw him
- Methought he was a brother to your daughter:
- But, my good lord, this boy is forest-born,
- And hath been tutor'd in the rudiments
- Of many desperate studies by his uncle,
- Whom he reports to be a great magician,
- Obscured in the circle of this forest.
-
- [Enter TOUCHSTONE and AUDREY]
-
-JAQUES There is, sure, another flood toward, and these
- couples are coming to the ark. Here comes a pair of
- very strange beasts, which in all tongues are called fools.
-
-TOUCHSTONE Salutation and greeting to you all!
-
-JAQUES Good my lord, bid him welcome: this is the
- motley-minded gentleman that I have so often met in
- the forest: he hath been a courtier, he swears.
-
-TOUCHSTONE If any man doubt that, let him put me to my
- purgation. I have trod a measure; I have flattered
- a lady; I have been politic with my friend, smooth
- with mine enemy; I have undone three tailors; I have
- had four quarrels, and like to have fought one.
-
-JAQUES And how was that ta'en up?
-
-TOUCHSTONE Faith, we met, and found the quarrel was upon the
- seventh cause.
-
-JAQUES How seventh cause? Good my lord, like this fellow.
-
-DUKE SENIOR I like him very well.
-
-TOUCHSTONE God 'ild you, sir; I desire you of the like. I
- press in here, sir, amongst the rest of the country
- copulatives, to swear and to forswear: according as
- marriage binds and blood breaks: a poor virgin,
- sir, an ill-favoured thing, sir, but mine own; a poor
- humour of mine, sir, to take that that no man else
- will: rich honesty dwells like a miser, sir, in a
- poor house; as your pearl in your foul oyster.
-
-DUKE SENIOR By my faith, he is very swift and sententious.
-
-TOUCHSTONE According to the fool's bolt, sir, and such dulcet diseases.
-
-JAQUES But, for the seventh cause; how did you find the
- quarrel on the seventh cause?
-
-TOUCHSTONE Upon a lie seven times removed:--bear your body more
- seeming, Audrey:--as thus, sir. I did dislike the
- cut of a certain courtier's beard: he sent me word,
- if I said his beard was not cut well, he was in the
- mind it was: this is called the Retort Courteous.
- If I sent him word again 'it was not well cut,' he
- would send me word, he cut it to please himself:
- this is called the Quip Modest. If again 'it was
- not well cut,' he disabled my judgment: this is
- called the Reply Churlish. If again 'it was not
- well cut,' he would answer, I spake not true: this
- is called the Reproof Valiant. If again 'it was not
- well cut,' he would say I lied: this is called the
- Counter-cheque Quarrelsome: and so to the Lie
- Circumstantial and the Lie Direct.
-
-JAQUES And how oft did you say his beard was not well cut?
-
-TOUCHSTONE I durst go no further than the Lie Circumstantial,
- nor he durst not give me the Lie Direct; and so we
- measured swords and parted.
-
-JAQUES Can you nominate in order now the degrees of the lie?
-
-TOUCHSTONE O sir, we quarrel in print, by the book; as you have
- books for good manners: I will name you the degrees.
- The first, the Retort Courteous; the second, the
- Quip Modest; the third, the Reply Churlish; the
- fourth, the Reproof Valiant; the fifth, the
- Countercheque Quarrelsome; the sixth, the Lie with
- Circumstance; the seventh, the Lie Direct. All
- these you may avoid but the Lie Direct; and you may
- avoid that too, with an If. I knew when seven
- justices could not take up a quarrel, but when the
- parties were met themselves, one of them thought but
- of an If, as, 'If you said so, then I said so;' and
- they shook hands and swore brothers. Your If is the
- only peacemaker; much virtue in If.
-
-JAQUES Is not this a rare fellow, my lord? he's as good at
- any thing and yet a fool.
-
-DUKE SENIOR He uses his folly like a stalking-horse and under
- the presentation of that he shoots his wit.
-
- [Enter HYMEN, ROSALIND, and CELIA]
-
- [Still Music]
-
-HYMEN Then is there mirth in heaven,
- When earthly things made even
- Atone together.
- Good duke, receive thy daughter
- Hymen from heaven brought her,
- Yea, brought her hither,
- That thou mightst join her hand with his
- Whose heart within his bosom is.
-
-ROSALIND [To DUKE SENIOR] To you I give myself, for I am yours.
-
- [To ORLANDO]
-
- To you I give myself, for I am yours.
-
-DUKE SENIOR If there be truth in sight, you are my daughter.
-
-ORLANDO If there be truth in sight, you are my Rosalind.
-
-PHEBE If sight and shape be true,
- Why then, my love adieu!
-
-ROSALIND I'll have no father, if you be not he:
- I'll have no husband, if you be not he:
- Nor ne'er wed woman, if you be not she.
-
-HYMEN Peace, ho! I bar confusion:
- 'Tis I must make conclusion
- Of these most strange events:
- Here's eight that must take hands
- To join in Hymen's bands,
- If truth holds true contents.
- You and you no cross shall part:
- You and you are heart in heart
- You to his love must accord,
- Or have a woman to your lord:
- You and you are sure together,
- As the winter to foul weather.
- Whiles a wedlock-hymn we sing,
- Feed yourselves with questioning;
- That reason wonder may diminish,
- How thus we met, and these things finish.
-
- SONG.
- Wedding is great Juno's crown:
- O blessed bond of board and bed!
- 'Tis Hymen peoples every town;
- High wedlock then be honoured:
- Honour, high honour and renown,
- To Hymen, god of every town!
-
-DUKE SENIOR O my dear niece, welcome thou art to me!
- Even daughter, welcome, in no less degree.
-
-PHEBE I will not eat my word, now thou art mine;
- Thy faith my fancy to thee doth combine.
-
- [Enter JAQUES DE BOYS]
-
-JAQUES DE BOYS Let me have audience for a word or two:
- I am the second son of old Sir Rowland,
- That bring these tidings to this fair assembly.
- Duke Frederick, hearing how that every day
- Men of great worth resorted to this forest,
- Address'd a mighty power; which were on foot,
- In his own conduct, purposely to take
- His brother here and put him to the sword:
- And to the skirts of this wild wood he came;
- Where meeting with an old religious man,
- After some question with him, was converted
- Both from his enterprise and from the world,
- His crown bequeathing to his banish'd brother,
- And all their lands restored to them again
- That were with him exiled. This to be true,
- I do engage my life.
-
-DUKE SENIOR Welcome, young man;
- Thou offer'st fairly to thy brothers' wedding:
- To one his lands withheld, and to the other
- A land itself at large, a potent dukedom.
- First, in this forest, let us do those ends
- That here were well begun and well begot:
- And after, every of this happy number
- That have endured shrewd days and nights with us
- Shall share the good of our returned fortune,
- According to the measure of their states.
- Meantime, forget this new-fall'n dignity
- And fall into our rustic revelry.
- Play, music! And you, brides and bridegrooms all,
- With measure heap'd in joy, to the measures fall.
-
-JAQUES Sir, by your patience. If I heard you rightly,
- The duke hath put on a religious life
- And thrown into neglect the pompous court?
-
-JAQUES DE BOYS He hath.
-
-JAQUES To him will I : out of these convertites
- There is much matter to be heard and learn'd.
-
- [To DUKE SENIOR]
-
- You to your former honour I bequeath;
- Your patience and your virtue well deserves it:
-
- [To ORLANDO]
-
- You to a love that your true faith doth merit:
-
- [To OLIVER]
-
- You to your land and love and great allies:
-
- [To SILVIUS]
-
- You to a long and well-deserved bed:
-
- [To TOUCHSTONE]
-
- And you to wrangling; for thy loving voyage
- Is but for two months victuall'd. So, to your pleasures:
- I am for other than for dancing measures.
-
-DUKE SENIOR Stay, Jaques, stay.
-
-JAQUES To see no pastime I what you would have
- I'll stay to know at your abandon'd cave.
-
- [Exit]
-
-DUKE SENIOR Proceed, proceed: we will begin these rites,
- As we do trust they'll end, in true delights.
-
- [A dance]
-
-
-
-
- AS YOU LIKE IT
-
- EPILOGUE
-
-
-ROSALIND It is not the fashion to see the lady the epilogue;
- but it is no more unhandsome than to see the lord
- the prologue. If it be true that good wine needs
- no bush, 'tis true that a good play needs no
- epilogue; yet to good wine they do use good bushes,
- and good plays prove the better by the help of good
- epilogues. What a case am I in then, that am
- neither a good epilogue nor cannot insinuate with
- you in the behalf of a good play! I am not
- furnished like a beggar, therefore to beg will not
- become me: my way is to conjure you; and I'll begin
- with the women. I charge you, O women, for the love
- you bear to men, to like as much of this play as
- please you: and I charge you, O men, for the love
- you bear to women--as I perceive by your simpering,
- none of you hates them--that between you and the
- women the play may please. If I were a woman I
- would kiss as many of you as had beards that pleased
- me, complexions that liked me and breaths that I
- defied not: and, I am sure, as many as have good
- beards or good faces or sweet breaths will, for my
- kind offer, when I make curtsy, bid me farewell.
-
- [Exeunt]
+++ /dev/null
-<head>
-<title>Compression Pointers</title>
-<META HTTP-EQUIV="Keywords" CONTENT="compression, compression, compression">
-</head>
-<body>
-<BODY BGCOLOR=#FFFFFF>
-
-<center>
-<H1> Compression Pointers </h1>
-
-
-
-</center>
-
-<p>
-<a href="#Resources">Compression resources</a>, <a href="#Conferences">conferences</a>, and some <a href="#Research">research
-groups and companies</a>, are listed towards the end of this page. <p>
-
-Use this <a href="form.html">handy form</a> to add something to this page, or to simply say you liked this page<i> <img src="new.gif">
-<p>
-
-</i>
-
-
-
-<p>
-
-<h2>What's New?</h2><p>
-
-
-<a href="http://www.teaser.fr/~jlgailly/">Jean-loup Gailly</a> -- <i>Mr. gzip,
-PNG, CCR (1996-06-10)</i>
-<img src="new.gif">
-<br>
-
-<a href="http://www.creative.net/~tristan/MPEG">MPEG Pointers and Resources</a>
-<img src="new.gif">
-<br>
-
-<a href="http://www-isl.stanford.edu/~gray/">Robert M. Gray</a> -- <i>Signal
-compression, VQ, image quality evaluation (1996-04-22)</i><img src="new.gif">
-<br>
-
-<a href="http://www-isl.stanford.edu/~gray/compression.html">Compression and
-Classification Group</a> -- <i>ISL,EE,Stanford (1996-04-22)</i><img src="new.gif">
-<br>
-
-<a href="http://www-isl.stanford.edu/~gray/iii.html">Signal Processing
-and the International Information Infrastructure</a> -- <i>Web sites (1996-04-22)</i> <img src="new.gif">
-<br>
-
-<a href="http://www.cs.sc.edu:80/~valenta/">Valenta, Vladimir</a> -- <i>(1996-04-22)</i>
-<br>
-
-
-<a href="http://patpwww.epfl.ch:80/~jordan/Subjects/Parallel/parallel.html">Jordan, Frederic</a> -- <i>Parallel Image Compression (1996-04-12)</i> <img src="new.gif">
-<br>
-<a href="http://www.garlic.com/biz/eotek">Electro-Optical Technologies, Inc.</a> -- <i>Consultant (1996-04-12)</i> <img src="new.gif">
-<br>
-<a href="http://quicktime.apple.com">quicktime.apple.com</a> -- <i>Quicktime site (1996-03-11)</i> <img src="new.gif">
-<br>
-<a href="http://www.chips.ibm.com/products/aldc/index.html">IBM Hardware</a> -- <i>Compression chips (1996-03-11)</i> <img src="new.gif">
-<br>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-<!---
-
-<img src="new.gif"><i>Do you have, or know of, a research position where an image compression guru with a Ph.D. would feel at
-home? Let me know if you do...<a
-href="mailto:singlis@cs.waikato.ac.nz"><b>send me some email!</b></a>, or <a
-href="http://www.cs.waikato.ac.nz/~singlis/cv.html"><b>check out my
-c.v.</b>
-</a>
-</i>
-
--->
-
-<p>
-
-
-<p>
-
-
-<h2><i>People</i></h2>
-<h2>A</h2>
-
-<a href="http://quest.jpl.nasa.gov/Mark.Adler/">Adler, Mark</a> -- <i>Info-ZIP; Zip, UnZip, gzip and zlib co-author; PNG group</i>
-<p>
-
-<h2>B</h2>
-
-<a href="http://www.eese.qut.edu.au/~mbaker/">Baker, Matthew</a> -- <i>Region based video compression</i>
-<p>
-<a href="http://www.eecs.wsu.edu/~bamberg/">Bamberger, Roberto H.</a>
-<p>
-<a href="http://sutherland.eese.qut.edu.au/~dbell">Bell, Daniel</a> -- <i>Region based image compression</i>
-<p>
-<a href="http://www.cosc.canterbury.ac.nz/~tim">Bell, Tim</a> -- <i>compression, computer science for children, and computers and music.</i>
-<p>
-<a href="http://www.polytechnique.fr/poly/~bellard/">Bellard, Fabrice</a> -- <i>Author of LZEXE</I>
-<p>
-<a href="http://www.cevis.uni-bremen.de/~willy/">Berghorn, Willy </a>
-<p>
-<a href="http://www.best.com/~bhaskara">Bhaskaran, Vasudev</a> -- <i>Image and Video compression</i>
-<p>
-<a href="http://wwwvms.utexas.edu/~cbloom/index.html">Bloom, Charles</a> -- <i>text compression, LZ methods, PPM methods...</i>
-<p>
-<a href="http://www.ime.usp.br/~rbrito">Brito, Roger</a> -- <i>Arithmetic Coding, LZW, Text Compression</i>
-<p>
-<a href="http://www.engineering.usu.edu/ece/faculty/scottb.html">Budge, Scott E.</a> -- <i>medical/lossy image compression</i>
-<p>
-<a href="http://www.elec.uow.edu.au/people/staff/burnett/biography.html">Burnett, Ian</a> -- <i>Speech coding, prototype waveform techniques</I> <img src="new.gif">
-<p>
-
-
-<h2>C</h2>
-
-<a href="http://gabor.eecs.berkeley.edu/~wychan/">Chan, Christopher</a> -- <i>universal lossy source coding, adaptive VQ</i>
-<p>
-<a href="http://www.compsci.com/~chao">Chao, Hong-yang</a> -- <I>Lightning strike image compressor </i>
-<p>
-<a href="http://monet.uwaterloo.ca:80/schao/">Chao, Stewart</a>
-<p>
-<a href="http://diana.ecs.soton.ac.uk/~pjc94r/">Cherriman, Peter</a>
-<p>
-<a href="http://www-video.eecs.berkeley.edu/erl/sccheung.html">Cheung, S.C.</a> -- <i>Scalable video compression algorithms (18th Feb 1996)</i> <img src="new.gif">
-<p>
-
-<a href="http://etro.vub.ac.be/chchrist.html">Christopoulos, Charilaos</a> -- <i> Image and Video compression </i>
-<p>
-<a href="http://sipi.usc.edu/~chrysafi/">Chrysafis, Christos</a>
-<p>
-<a href="http://www.ee.gatech.edu/research/DSP/students/wchung/index.html">Chung, Wilson C.</a> -- <i>R-D image and video coding, subband/wavelet, filter banks</i>
-<p>
-<a href="mailto:aclark@hayes.com">Clark, Alan</a> -- <i>primary contact for V.42bis. Developed BTLZ variant of LZW</i>
-<p>
-<a href="http://www.cs.waikato.ac.nz/cs/Staff/jgc.html">Cleary, John</a> -- <i>PPM, PPM*, K*</i>
-<p>
-<a href="http://www.cs.brandeis.edu/dept/faculty/cohn/">Cohn, Martin</a>
-<p>
-
-<a href="http://plg.uwaterloo.ca/~gvcormac">Cormack, Gordon V.</a> -- <I>DMC</i>
-<p>
-<a href="http://www.ee.duke.edu/~cec/index.html">Cramer, Chris</a> -- <i>neural network image compression</i>
-<p>
-
-<h2>D</h2>
-<a href="http://www.cs.dartmouth.edu/~jmd/">Danskin, John</a> -- <i>Protocol compression, document compression (9th Feb 1996)</i>
-<p>
-<a href="http://www.cs.dartmouth.edu/~gdavis">Davis, Geoff</a> -- <i>wavelets, image compression, medical</i>
-<p>
-<a href="http://www-mddsp.enel.ucalgary.ca/People/adilger/">Dilger, Andreas</a> -- <i>fractal block coding of video sequences</i>
-<p>
-
-
-<h2>E</h2>
-<a href="http://info.cipic.ucdavis.edu/~estes/index.html">Estes, Robert</a>
-<p>
-
-
-
-<h2>F</h2>
-<a href="http://inls.ucsd.edu/y/Fractals/">Fisher, Yuval</a> -- <i>Fractal Image Compression</i>
-<p>
-<a href="http://www.wmin.ac.uk/~ajoec1/homepage.html">Ford, Adrian</a> -- <i>Subjective and Objective Compression quality (5th Mar 1996)</i> <img src="new.gif">
-<p>
-
-<h2>G</h2>
-<a href="http://www.teaser.fr/~jlgailly/">Jean-loup Gailly</a> --
-<i>Mr. gzip, PNG, CCR (1996-06-10)</i>
-<p>
-
-<a href="http://www.ece.ucsb.edu/faculty/gersho/default.html">Gersho, Allen</a> -- <i>Vector Quantisation, Image Compression</i>
-<p>
-<a href="http://life.anu.edu.au/ci/vol1/goertzel.html">Goertzel, Ben</a>
-<p>
-<a href="http://info.lut.ac.uk/departments/el/research/sys/compression.html">Gooch, Mark</a> -- <i>High Performance Hardware Compression (7th Feb 1996)</i>
-<p>
-<a href="http://robotics.eecs.berkeley.edu/~vkgoyal/">Goyal, Vivek</a> -- <i>overcomplete representations, adaptive transform coding, VQ</i>
-<p>
-<a href="http://www-isl.stanford.edu/~gray/">Robert M. Gray</a> -- <i>Signal
-compression, VQ, image quality evaluation</i><img src="new.gif">
-<p>
-
-<h2>H</h2>
-<a href="http://cork.informatik.uni-wuerzburg.de/mitarbeiter/ulli">Hafner, Ullrich</a> -- <i>WFA image compression</i>
-<p>
-<a href="http://www.ics.uci.edu/~dan/">Hirschberg, Dan</a> -- <i>algorithm theory, compression</i>
-<p>
-<a href="http://wolfpack.larc.nasa.gov/holland.html">Holland, Scott</a>
-<p>
-<a href="http://www.csc.uvic.ca/home/nigelh/nigelh.html">Horspool, R. Nigel</a> -- <i>text compression, ECG compression</i>
-
-<h2>I</h2>
-<a href="http://www.cs.waikato.ac.nz/~singlis">Inglis, Stuart</a> -- <i>image compression, OCR, lossy/lossless document compression</I>
-<p>
-
-<h2>J</h2>
-<a href="http://www.cs.uiowa.edu/~jones/compress/index.html">Jones, Douglas</a> -- <i>splay-tree based compression and encryption</i>
-<p>
-<a href="http://info.lut.ac.uk/departments/el/research/sys/compression.html">Jones, Simon</a> -- <i>Lossless compression, High Performance Hardware (7th Feb 1996) </i>
-<p>
-<a href="http://patpwww.epfl.ch:80/~jordan/Subjects/Parallel/parallel.html">Jordan, Frederic</a> -- <i>Parallel Image Compression (12th April 1996)</i> <img src="new.gif">
-<p>
-<a href="mailto:robjung@world.std.com">Jung, Robert K.</a> -- <i><a href="http://www.info.fundp.ac.be/~fta/arj.html">ARJ</a> </i>
-<p>
-<a href="http://www.cs.tu-berlin.de/~jutta/toast.html">jutta</a>
-<p>
-
-
-
-<h2>K</h2>
-<a href="http://links.uwaterloo.ca">Kominek, John</a> -- <I>Fractal and spline based compression</i>
-<p>
-<a href="http://info.lut.ac.uk/departments/el/research/sys/elmk3.html">Kjelso, Morten</a> -- <i>Main memory compression, High performance hardware</i>
-<p>
-<a href="http://wwwcip.informatik.uni-erlangen.de/user/mskuhn">Kuhn, Markus</a> -- <i>JBIG implementation</i> <img src="new.gif">
-<p>
-<a href="http://sipi.usc.edu/faculty/Kuo.html">Kuo, C.-C. Jay</a>
-<p>
-<a href="http://kaarna.cc.jyu.fi:80/~kuru/">Kuru, Esa</a>
-<p>
-<a href="http://www.prz.tu-berlin.de:80/~teo/">Kyfonidis, Theodoros</a>
-<p>
-
-<h2>L</h2>
-<a href="http://www.icsi.berkeley.edu/~lampart/">Lamparter, Bernd</a>
-<p>
-<a href="http://www.cse.ucsc.edu/cgi-bin/faculty?langdon">Langdon, Glen</a>
-<p>
-<a href="http://www.dna.lth.se/~jesper/">Larsson, Jesper</a> -- <i>algorithms and data structures, text compression</i> <img src="new.gif">
-<p>
-
-
-<h2>M</h2>
-<a href="http://glimpse.cs.arizona.edu:1994/udi.html">Manber, Udi</a>
-<p>
-<a href="http://www.elec.rma.ac.be/~jma/compression.html">Mangen, Jean-Michel</a> -- <i>image compression, wavelets, satellite</I>
-<p>
-<a href="http://www.cs.mu.oz.au/~alistair">Moffat, Alistair</a> -- <i>text and index compression, coding methods, information retrieval, document databases</i>
-<p>
-<a href="http://deskfish.cs.titech.ac.jp/squish/squish_index.html">Montgomery, Christopher</a> -- <i>OggSquish, audio compression</i>
-<p>
-<a href="mailto:umueller@amiga.physik.unizh.ch">Mueller, Urban Dominik</a> -- <i>XPK system</I>
-<p>
-<h2>N</h2>
-<a href="ftp://ai.toronto.edu/pub/radford/www/index.html">Neal, Radford</a>
-<p>
-<a href="http://www.cs.waikato.ac.nz/~cgn">Nevill-Manning, Craig</a>
-<p>
-<a href="http://phoenix.bath.ac.uk/jez/jez.html">Nicholls, Jeremy</a>
-<p>
-<a href="http://www.acti.com/matt/">Noah, Matt</a> -- <i>speech, ATC, ACELP and IMBE</i>
-<p>
-<a href="http://www.eecs.wsu.edu/~vnuri/">Nuri, Veyis</a> -- <i>wavelets, data compression, DSP (speech & image)</I>
-
-<h2>O</h2>
-<a href="ftp://replicant.csci.unt.edu/pub/oleg/README.html">Oleg</a> -- <i>Lots of code</i>
-<p>
-<a href="http://sipi.usc.edu/faculty/Ortega/Ortega.html">Ortega, Antonio</a> -- <i>Video compression, Packet video, Adaptive quantization</i>
-<p>
-<a href="http://www.cs.dartmouth.edu:80/~cowen/">Owen, Charles</a>
-<p>
-
-<h2>P</h2>
-<a
-href="http://www-mddsp.enel.ucalgary.ca/People/provine/compression.html">Provine,
-Joseph</a> -- <i>Model based coding</i>
-<p>
-
-<h2>R</h2>
-<a href="http://monet.uwaterloo.ca/~john/btpc.html">Robinson, John</a> -- <i>Binary Tree Predictive Coding</i>
-<p>
-<a href="http://quest.jpl.nasa.gov/Info-ZIP/people/greg/">Roelofs, Greg</a> -- <i>Info-ZIP; primary UnZip author; PNG group</i>
-<p>
-<a href="http://www.ece.ucsb.edu/faculty/rose/default.html">Rose, Kenneth</a>
-<p>
-<a href="http://www.nettuno.it/fiera/telvox/telvox.htm">Russo, Roberto Maria</a> -- <I>Multiplatform Data Compression</i>
-<p>
-
-<h2>S</h2>
-<a href="http://harc.edu:80/~schmidt/">Schmidt, Bill</a>
-<p>
-<a href="http://koa.ifa.hawaii.edu/~shaw/shaw.html">Shaw, Sandy C.</a>
-<p>
-<a href="http://www.comm.toronto.edu/~kamran/kamran.html">Sharifi, Kamran</a> -- <i>Video over ATM networks</i>
-<p>
-<a href="http://calypso.unl.edu/~sunil/">Shende, Sunil M.</a>
-<p>
-<a href="http://viewprint2.berkeley.edu/KleinLab/Amnon/Amnon.html">Silverstein, D. Amnon</a>
-<p>
-<a href="http://www-plateau.cs.berkeley.edu/people/smoot">Smoot, Steve</a> -- <i>MPEG</i>
-<p>
-<a href="http://www.cs.brandeis.edu/dept/faculty/storer/">Storer, James A.</a>
-<p>
-<a href="http://rice.ecs.soton.ac.uk/index.html">Streit, Jurgen</a> -- <i>Low bitrate coding</i>
-<p>
-<a href="http://www_nt.e-technik.uni-rostock.de/~ts/index.html">Strutz, Tilo</a> -- <i>Wavelet image compressor, demonstration execs</i> <img src="new.gif">
-<p>
-
-
-<h2>T</h2>
-<a href="http://zaphod.csci.unt.edu:80/~srt/">Tate, Steve</a>
-<p>
-<a href="http://www.cs.waikato.ac.nz/~wjt">Teahan, Bill</a> -- <i>PPM, PPM*, master of the Calgary Corpus</i>
-<p>
-<a href="http://lightning.eee.strath.ac.uk/~duncan/">Thomson, Duncan</a> -- <i>ECG compression with ANNs</i>
-<p>
-<a href="http://outside.gsfc.nasa.gov/GRSS/">Tilton, James C.</a>
-<p>
-<a href="http://www.uni-karlsruhe.de/~un55/">Tomczyk, Marek</a>
-<p>
-<a href="http://munkora.cs.mu.oz.au/~aht">Turpin, Andrew</a> -- <i>Prefix Codes</i>
-<p>
-
-<h2>V</h2>
-<a href="http://gabor.eecs.berkeley.edu/~martin/">Vetterli, Martin</a> -- <i>wavelets, subband coding, video compression, computational complexity</i>
-<p>
-<a href="http://www.cs.duke.edu/~jsv/HomePage.html">Vitter, Jeff</a>
-<p>
-<a href="http://www.eee.strath.ac.uk/~stathis/home.html">Voukelatos, Stathis</a>
-<p>
-<a href="http://www.xs4all.nl/~aipnl">de Vries, Nico</a> -- <i>AIP-NL, UltraCompressor II development</i> <img src="new.gif">
-<p>
-
-<h2>W</h2>
-
-<a href="http://ipcl.ee.queensu.ca/wareham/wareham.html">Wareham, Paul</a> -- <i>Region-oriented video coding</I>
-<p>
-<a href="mailto://Wegs59@aol.com">Wegener, Al</a> -- <i>DSP, lossless audio compression and AC-2</i>
-<p>
-<a href="http://www-dsp.rice.edu:80/~weid/">Wei, Dong</a> -- <i>Wavelet compression</i>
-<p>
-<a href="http://www.rocksoft.com/~ross">Williams, Ross</a>
-<p>
-<a href="http://www.cs.waikato.ac.nz/~ihw">Witten, Ian</a> -- <i>PPM, mg, arithmetic coding</i>
-<p>
-<a href="http://www.sees.bangor.ac.uk/~gerry/sp_summary.html">Wolff, Gerry</a>
-<p>
-<a href="http://sipi.usc.edu/~wwoo/">Woo, Woon-Tack</a> -- <i>stereo image and video compression (12th Feb 1996)</i>
-<p>
-<a href="http://www.csd.uwo.ca/faculty/wu/">Wu, Xiaolin</a> -- <i>CALIC</i>
-<P>
-
-
-<h2>Z</h2>
-<a href="http://www.cs.rmit.edu.au/~jz">Zobel, Justin</a> -- <i>index compression, database compression</i>
-<p>
-
-<br>
-<br>
-
-
-<a name="Conferences">
-
-<h2><i>Conferences</i></h2>
-<a href="http://www.cs.brandeis.edu:80/~dcc/index.html"><b>Data Compression Conference (DCC), Snowbird, Utah, USA.</b></a><br>
-<p>
-
-<a name="Resources">
-
-<h2><i>Resources</i></h2>
-<dt>
-<i><b>Where to get answers...</b></i>
-<dd>
-<dd><a href="http://info.itu.ch/">International Telecommunication Union (ITU)</a> -- <i>standards documents (CCITT)</i>
-<br>
-<dd><a href="http://www.cis.ohio-state.edu/hypertext/faq/usenet/compression-faq/top.html">comp.compression -- Frequently Asked Questions</a> -- <i>Come here 1st!</i>
-<dd>
-<a href="http://www.cis.ohio-state.edu/hypertext/faq/usenet/jpeg-faq/faq.html">JPEG - Frequently Asked Questions</a>
-<dd>
-<a href="http://www.crs4.it/HTML/LUIGI/MPEG/mpegfaq.html">MPEG - Frequently Asked Questions</a>
-<dd>
-<a href="ftp://rtfm.mit.edu:/pub/usenet/news.answers/standards-faq">Standards - Frequenty Asked Questions</a>
-<dd>
-<a href="news:comp.compression.research">usenet newsgroup: comp.compression.research</a>
-<br>
-<dd>
-<a href="http://www.mi.net/act/act.html">Archive Compression Test</a> -- <i>Summary of all archivers</i>
-<br>
-<dd>
-<a href="http://dip1.ee.uct.ac.za/fractal.bib.html">Fractal compression bibliography</a> -- <i>bibtex file</i>
-<br>
-<dd>
-<a href="http://goethe.ira.uka.de/edu/proseminar.html">LZ/Complexity Seminars</a> -- <i>(in German)</i>
-<br>
-<dd>
-<a href="http://www.cs.waikato.ac.nz/~singlis/ratios.html">Comparitive Compression Ratios</a> -- <i>Sofar...B&W, Gray Scale, Text Compression</i>
-<br>
-<dd>
-<a href="http://www.cs.ucl.ac.uk/mice/mpeggloss.html">VCN (Video, Compression, Networking)
-Glossary</a>
-<br>
-<dd>
-<a href="http://www.cs.waikato.ac.nz/~nzdl/">Digital Library -- search for compression</a>
-<br>
-</dt>
-
-<br>
-<dt>
-<i><b>Reports/Ph.D. Theses</b></i>
-<dd>
-<a href="http://www.cs.brown.edu/publications/techreports/reports/CS-93-28.html">Paul Howards Ph.D. thesis</a><br>
-<dd><i>The Design and Analysis of Efficient Lossless Data Compression Systems</i>
-<br>
-</dt>
-
-
-
-<br>
-<dt>
-<i><b>Source code</b></i>
-<dd>
-<a href="ftp://munnari.oz.au/pub/arith_coder">Arithmetic coding routines</a>
-<dd><i>        (from Moffat, Neal and Witten, Proc. DCC, April 1995)</i>
-<br>
-<dd>
-<a href="ftp://ftp.cpsc.ucalgary.ca/pub/projects/ar.cod">CACM Arithmetic coding package</a>
-<dd><i>        (Witten, Neal and Cleary, CACM 30:520-541, June 1987)</i>
-<br>
-<dd>
-<a href="ftp://nic.funet.fi/pub/graphics/misc/test-images/jbig.tar.gz">JBIG Source code</a> <i>Includes a Q-coder</i>
-<br>
-<dd><a href="http://wwwcip.informatik.uni-erlangen.de/user/mskuhn">Markus Kuhn's JBIG implementation</a>
-<br>
-<dd>
-<a href="ftp://media-lab.media.mit.edu/pub/k-arith-code/">k-arithmetic coder</a>
-<br>
-<dd>
-<a href="ftp://garbo.uwasa.fi/pc/programming/lds_11.zip">Lossless Data Compression toolkit 1.1</a>
-<br>
-<dd>
-<a href="http://www.cs.uiowa.edu/~jones/compress/index.html">Splay Trees Code</a> -- <i>by Douglas W. Jones</i>
-<br>
-<dd><a href="ftp://ftp.cl.cam.ac.uk/users/djw3">Block compression code</a> -- <i>Excellent text compressor</i>
-<br>
-
-</dt>
-
-<br>
-<dt>
-<i><b>Test Files</b></i>
-<dd>
-<a href="ftp://nic.funet.fi/pub/graphics/misc/test-images/">Test Images</a> -- <i>CCITT images (pbm), Lena etc. (Sun raster)</i>
-<br>
-<dd>
-Stockholm test images -- <i>You have to buy a CDROM, thats all I know! :-(</i>
-<dd>         mail me at <a href="mailto:singlis@cs.waikato.ac.nz">singlis@cs.waikato.ac.nz</a> if you know anything about them.
-<br>
-<dd>
-<a href="ftp://ftp.cpsc.ucalgary.ca/pub/projects/text.compression.corpus/">Calgary Text Compression Corpus</a><i> (Text Compression, Bell, Cleary and Witten, 1990)</i>
-<br>
-</dt>
-
-<br>
-
-<a name="Research">
-
-
-<h2><i>Research Projects, Standards & Companies</i></h2>
-
-<p>
-<dt>
-<i><b>Research/Free software Groups</b></i>
-<dd><a href="http://www-isl.stanford.edu/~gray/compression.html">Compression and
-Classification Group</a> -- <i>ISL,EE,Stanford (22th April 1996)</i><img src="new.gif">
-
-<dd><a href="http://www.bonzi.com">Voice email</a> -- <i>Lossless audio compression (18th Feb 1996)</i>
-
-
-<dd><a href="http://www.garlic.com/biz/eotek">Electro-Optical Technologies, Inc.</a> -- <i>Consultant (12th April 1996)</i> <img src="new.gif">
-
-<dd><a href="http://quicktime.apple.com">quicktime.apple.com</a> -- <i>Quicktime site (11th Mar 1996)</i>
-
-<dd><a href="http://www.atinternet.fr/image/">IMAGE etc.</a> -- <i>Commercial image compression software (Fractals/Wavelets) (29th Feb 1996)</i> <img src="new.gif">
-
-<dd><a href="http://re7alpha.epm.ornl.gov/CcmDemo/">NCAR CCM Compression and Visualisation</a> -- <i>(18th Feb 1996)</i> <img src="new.gif">
-<br>
-<dd><a href="http://ipl.rpi.edu/SPIHT/">SPIHT</a> -- <I>Wavelet Natural Image Compressor (12th Feb 1996)</i> <img src="new.gif">
-<br>
-<dd><a href="http://info.lut.ac.uk/departments/el/research/sys/compression.html">Real-Time Lossless Compression Systems</a> -- <i>Loughborough University</i> <img src="new.gif">
-<br>
-<dd><a href="http://saigon.ece.wisc.edu/~waveweb/QMF.html">Web site for Multirate Signal Processing</a> -- <i>University of Wisconsin, Madison</i>
-<br>
-<dd><a href="http://quest.jpl.nasa.gov/Info-ZIP/">Info-ZIP</a> -- <i>free,
-portable Zip and UnZip utilities</i>
-<br>
-<dd><a href="http://cesdis.gsfc.nasa.gov/">CEDIS</a> -- <i>NASA, Maryland, Image/data compression</i>
-<br>
-<dd><a href="http://www.c3.lanl.gov/~brislawn/ftp.html">CIC-3 Image Compression</a> -- <i>FBI Fingerprints</i>
-<br>
-<dd><a href="http://rainbow.ece.ucsb.edu/scl.html">Signal Compression Lab at UCSB</a>
-<br>
-<dd><a href="http://isdl.ee.washington.edu/COMPRESSION/homepage.html">University of
-Washington compression lab</a> -- <I>VQ, Wavelets, Shlomo</i>
-<br>
-</dt>
-
-
-<p>
-<dt>
-<i><b>Snippets</b></i>
-<dd><a href="http://www-isl.stanford.edu/~gray/iii.html">Signal Processing
-and the International Information Infrastructure</a> -- <i>Web sites (22th April 1996)</i> <img src="new.gif">
-<dd><a href="http://www.scu.edu.au/ausweb95/papers/management/vanzyl/">Increasing Web bandwith</a> -- <i>comparing GIF, JPEG, Fractal compression</i>
-<br>
-<dd><a href="http://www.yahoo.com/Art/Computer_Generated/Fractals">Fractal Links on Yahoo</a>
-<br>
-<dd><a href="http://www.ddj.com/old/ddjw001d.htm">Digital Speech Compression GSM 06.10 RPE-LTP</a> -- <i>DDJ</i>
-<br>
-<dd><a href="http://www.crc.ricoh.com/CREW/">CREW</a> -- <i>Continuous tone loss(y/less) wavelet compression</i>
-<br>
-<dd><a href="ftp://ftp.csd.uwo.ca/pub/from_wu/">CALIC -- Context-based adaptive lossless image compressor</a>
-<br>
-<dd><a href="http://www-plateau.cs.berkeley.edu/mpeg/index.html">Berkeley MPEG</a> -- <i>MPEG tools</i>
-<br>
-<dd><a href="http://www.creative.net/~tristan/MPEG">MPEG Pointers and Resources</a>
-<BR>
-</dt>
-
-
-
-
-
-<p>
-<dt>
-<i><b>Wavelets</b></i>
-<dd>
-<a href="http://www.cis.upenn.edu/~eero/epic.html">
- EPIC (Efficient Pyramid Image Coder)</a> -- <i>by Eero Simoncelli</i>
-<br>
-<dd>
-<a href="mailto://72234.2617@compuserve.com">Tucker, Michael</a> -- <i>FASTWAVE, audio/image compression</i>
-<br>
-<dd>
-<a href="http://www.harc.edu">HARC</a> -- <i>Lossy Wavelet Compression technology</i>
-<br>
-<dd>
-<a href="http://gabor.eecs.berkeley.edu/">UC Berkeley Wavelet Group</a>
-<br>
-<dd>
-<a href="http://www.c3.lanl.gov/~cjhamil/Wavelets/main.html">Khoros Wavetlet and Compression Toolbox</a>
-<br>
-<dd>
-<a href="http://arabigo.math.scarolina.edu:80/~wavelet/">The Wavelet Digest</a>
-<br>
-<dd>
-<a href="http://jazz.rice.edu/publications.html">Rice DSP Publications Archive</a> -- <i>Wavelets, Time Frequency/Scale</i>
-<br>
-</dt>
-
-<p>
-<dt>
-<i><b>Fractals</b></i>
-<dd>
-<a href="http://inls.ucsd.edu/y/Fractals/">Fractal Image Compression</a> -- <i>Software, Pointers, Conferences</i>
-<br>
-<dd>
-<a href="http://www.fractal.com/">Fractal Design Corporation</a>
-<br>
-<dd>
-<a href="http://www.webcom.com/~verrando/university/ifs.html">New Fractal Image Compression program</a>
-<br>
-</dt>
-
-<p>
-<dt>
-<i><b>Companies</b></i>
-<dd><a href="http://www.chips.ibm.com/products/aldc/index.html">IBM Hardware</a> -- <i>Compression chips (11th Mar 1996)</i> <img src="new.gif">
-
-<dd><a href="http://www.summus.com">Summus Wavelet Technology</a> -- <i>Wavelet image and video compressors (11th Mar 1996)</i> <img src="new.gif">
-<dd><a href="http://www.mitsubishi.co.jp/jp/fractal/fractal.html">Fractal Image Compression</a> -- <I>Mitsubishi (18th Feb 1996)</i> <img src="new.gif">
-
-<dd><a href="http://www.terran-int.com/">Terran Interactive</a> -- <i>Video compression for the Mac (1st Feb 1996)</i> <img src="new.gif">
-<br>
-
-<dd><a href="http://darvision.kaist.ac.kr/dvmpeg.html">DV Mpeg</a> -- <i>Windows drivers (18th Feb 1996)</I> <img src="new.gif">
-<br>
-
-<dd><a href="http://www.crawford.com/cs/welcome.html">Crawford Compression Services</a> -- <i>MPEG post-production (18th Feb 1996)</i> <img src="new.gif">
-<br>
-
-<dd><a href="http://www.shore.net/~ict">Intelligent Compression Technologies</a> <i>(18th Feb 1996)</i> <img src="new.gif">
-<br>
-
-<dd><a href="http://www.jpg.com">Pegasus Imaging</a> -- <i>Compression software/dev. kits (12th Feb 1996)</i> <img src="new.gif">
-<br>
-<dd><a href="http://www.aladdinsys.com/">Aladdin Systems</a> -- <i>StuffIt compression products</i>
-<br>
-<dd><a href="http://www.stac.com/">Stac Electronics</a>
-<br>
-<dd><a href="http://www.ccinet.ab.ca/dcp.html">DCP Research</a> -- <i>Hardware solutions</i>
-<br>
-<dd><a href="http://www.aware.com/product_info/compression_overview.html">Aware Inc.</a> -- <i>Specialised compression company</i>
-<br>
-<dd><a href="http://www.inria.fr/rodeo/ivs.html">IVS - INRIA Videoconferencing System</a>
-<br>
-<dd><a href="http://sp25.ianus.cineca.it/telvox/telvoxen.htm">Telvox Teleinformatica</a> -- <i>Multiplatform Data Compressor</i>
-<br>
-<dd><a href="http://www.compression.com">Compression Technologies,
-Inc</a> -- <i>Canada</i>
-<br>
-<dd><a href="http://www.optivision.com/">Optivision</a> -- <i>MPEG</i>
-<br>
-<dd><a href="http://www.pkware.com/">PKWARE</a> -- <i>Makers of PKZIP</i>
-<br>
-<dd><a href="http://www.infoanalytic.com/tayson/index.html">Multimedia Imaging Services</a>
-<br>
-</dt>
-
-<p>
-<dt>
-<i><b>Audio compression</b></i>
-<dd><a href="http://www.iis.fhg.de/departs/amm/index.html"> Fraunhofer Institut für Integrierte Schaltungen</a>
-<br>
-<dd><a href="http://svr-www.eng.cam.ac.uk/~ajr/speechCoding.html">Shorten</a>
-<br>
-<dd><a href="http://www.ddj.com/old/ddjw001d.htm">digital speech compression</a>
-<br>
-<dd><a href="http://www.cs.tu-berlin.de/~phade/audiowww.html">Audio compression references</a>
-<br>
-<dd><a href="http://www.fourmilab.ch/speakfree/windows/doc/compress.html">SpeakFreely - compression</a>
-<br>
-<dd><a href="http://www.fourmilab.ch/speakfree/windows/speak_freely.html#contents">SpeakFreely - Contents</a>
-<br>
+++ /dev/null
-#ifndef lint
-static char Rcs_Id[] =
- "$Id: fields.c,v 1.7 1994/01/06 05:26:37 geoff Exp $";
-#endif
-
-/*
- * $Log: fields.c,v $
- * Revision 1.7 1994/01/06 05:26:37 geoff
- * Get rid of all references to System V string routines, for portability
- * (sigh).
- *
- * Revision 1.6 1994/01/05 20:13:43 geoff
- * Add the maxf parameter
- *
- * Revision 1.5 1994/01/04 02:40:21 geoff
- * Make the increments settable (field_line_inc and field_field_inc).
- * Add support for the FLD_NOSHRINK flag.
- *
- * Revision 1.4 1993/09/27 17:48:02 geoff
- * Fix some lint complaints and some parenthesization errors.
- *
- * Revision 1.3 1993/09/09 01:11:11 geoff
- * Add a return value to fieldwrite. Add support for backquotes and for
- * unstripped backslashes.
- *
- * Revision 1.2 1993/08/26 00:02:50 geoff
- * Fix a stupid null-pointer bug
- *
- * Revision 1.1 1993/08/25 21:32:05 geoff
- * Initial revision
- *
- */
-
-#include <stdio.h>
-#include "config.h"
-#include "fields.h"
-
-field_t * fieldread P ((FILE * file, char * delims,
- int flags, int maxf));
- /* Read a line with fields from a file */
-field_t * fieldmake P ((char * line, int allocated, char * delims,
- int flags, int maxf));
- /* Make a field structure from a line */
-static field_t * fieldparse P ((field_t * fieldp, char * line, char * delims,
- int flags, int maxf));
- /* Parse the fields in a line */
-static int fieldbackch P ((char * str, char ** out, int strip));
- /* Process backslash sequences */
-int fieldwrite P ((FILE * file, field_t * fieldp, int delim));
- /* Write a line with fields to a file */
-void fieldfree P ((field_t * fieldp));
- /* Free a field returned by fieldread */
-
-unsigned int field_field_inc = 20; /* Increment to increase # fields by */
-unsigned int field_line_inc = 512; /* Incr to increase line length by */
-
-#ifndef USG
-#define strchr index
-#endif /* USG */
-
-extern void free ();
-extern char * malloc ();
-extern char * realloc ();
-extern char * strchr ();
-extern int strlen ();
-
-/*
- * Read one line of the given file into a buffer, break it up into
- * fields, and return them to the caller. The field_t structure
- * returned must eventually be freed with fieldfree.
- */
-field_t * fieldread (file, delims, flags, maxf)
- FILE * file; /* File to read lines from */
- char * delims; /* Characters to use for field delimiters */
- int flags; /* Option flags; see fields.h */
- int maxf; /* Maximum number of fields to parse */
- {
- register char * linebuf; /* Buffer to hold the line read in */
- int linemax; /* Maximum line buffer size */
- int linesize; /* Current line buffer size */
-
- linebuf = (char *) malloc (field_line_inc);
- if (linebuf == NULL)
- return NULL;
- linemax = field_line_inc;
- linesize = 0;
- /*
- * Read in the line.
- */
- while (fgets (&linebuf[linesize], linemax - linesize, file)
- != NULL)
- {
- linesize += strlen (&linebuf[linesize]);
- if (linebuf[linesize - 1] == '\n')
- break;
- else
- {
- linemax += field_line_inc;
- linebuf = (char *) realloc (linebuf, linemax);
- if (linebuf == NULL)
- return NULL;
- }
- }
- if (linesize == 0)
- {
- free (linebuf);
- return NULL;
- }
- return fieldmake (linebuf, 1, delims, flags, maxf);
- }
-
-field_t * fieldmake (line, allocated, delims, flags, maxf)
- char * line; /* Line to make into a field structure */
- int allocated; /* NZ if line allocated with malloc */
- char * delims; /* Characters to use for field delimiters */
- int flags; /* Option flags; see fields.h */
- int maxf; /* Maximum number of fields to parse */
- {
- register field_t * fieldp; /* Structure describing the fields */
- int linesize; /* Current line buffer size */
-
- fieldp = (field_t *) malloc (sizeof (field_t));
- if (fieldp == NULL)
- return NULL;
- fieldp->nfields = 0;
- fieldp->linebuf = allocated ? line : NULL;
- fieldp->fields = NULL;
- fieldp->hadnl = 0;
- linesize = strlen (line);
- if (line[linesize - 1] == '\n')
- {
- line[--linesize] = '\0';
- fieldp->hadnl = 1;
- }
- /*
- * Shrink the line buffer if necessary.
- */
- if (allocated && (flags & FLD_NOSHRINK) == 0)
- {
- line = fieldp->linebuf =
- (char *) realloc (fieldp->linebuf, linesize + 1);
- if (fieldp->linebuf == NULL)
- {
- fieldfree (fieldp);
- return NULL;
- }
- }
- return fieldparse (fieldp, line, delims, flags, maxf);
- }
-
-static field_t * fieldparse (fieldp, line, delims, flags, maxf)
- register field_t * fieldp; /* Field structure to parse into */
- register char * line; /* Line to be parsed */
- char * delims; /* Characters to use for field delimiters */
- int flags; /* Option flags; see fields.h */
- int maxf; /* Maximum number of fields to parse */
- {
- int fieldmax; /* Max size of fields array */
- char * lineout; /* Where to store xlated char in line */
- char quote; /* Quote character in use */
-
- fieldp->nfields = 0;
- fieldmax =
- (maxf != 0 && maxf < field_field_inc) ? maxf + 2 : field_field_inc;
- fieldp->fields = (char **) malloc (fieldmax * sizeof (char *));
- if (fieldp->fields == NULL)
- {
- fieldfree (fieldp);
- return NULL;
- }
- if ((flags
- & (FLD_SHQUOTES | FLD_SNGLQUOTES | FLD_BACKQUOTES | FLD_DBLQUOTES))
- == FLD_SHQUOTES)
- flags |= FLD_SNGLQUOTES | FLD_BACKQUOTES | FLD_DBLQUOTES;
- while (1)
- {
- if (flags & FLD_RUNS)
- {
- while (*line != '\0' && strchr (delims, *line) != NULL)
- line++; /* Skip runs of delimiters */
- if (*line == '\0')
- break;
- }
- fieldp->fields[fieldp->nfields] = lineout = line;
- /*
- * Skip to the next delimiter. At the end of skipping, "line" will
- * point to either a delimiter or a null byte.
- */
- if (flags
- & (FLD_SHQUOTES | FLD_SNGLQUOTES | FLD_BACKQUOTES
- | FLD_DBLQUOTES | FLD_BACKSLASH))
- {
- while (*line != '\0')
- {
- if (strchr (delims, *line) != NULL)
- break;
- else if (((flags & FLD_SNGLQUOTES) && *line == '\'')
- || ((flags & FLD_BACKQUOTES) && *line == '`')
- || ((flags & FLD_DBLQUOTES) && *line == '"'))
- {
- if ((flags & FLD_SHQUOTES) == 0
- && line != fieldp->fields[fieldp->nfields])
- quote = '\0';
- else
- quote = *line;
- }
- else
- quote = '\0';
- if (quote == '\0')
- {
- if (*line == '\\' && (flags & FLD_BACKSLASH))
- {
- line++;
- if (*line == '\0')
- break;
- line += fieldbackch (line, &lineout,
- flags & FLD_STRIPQUOTES);
- }
- else
- *lineout++ = *line++;
- }
- else
- {
- /* Process quoted string */
- if ((flags & FLD_STRIPQUOTES) == 0)
- *lineout++ = quote;
- ++line;
- while (*line != '\0')
- {
- if (*line == quote)
- {
- if ((flags & FLD_STRIPQUOTES) == 0)
- *lineout++ = quote;
- line++; /* Go on past quote */
- if ((flags & FLD_SHQUOTES) == 0)
- {
- while (*line != '\0'
- && strchr (delims, *line) == NULL)
- line++; /* Skip to delimiter */
- }
- break;
- }
- else if (*line == '\\')
- {
- if (flags & FLD_BACKSLASH)
- {
- line++;
- if (*line == '\0')
- break;
- else
- line += fieldbackch (line, &lineout,
- flags & FLD_STRIPQUOTES);
- }
- else
- {
- *lineout++ = '\\';
- if (*++line == '\0')
- break;
- *lineout++ = *line;
- }
- }
- else
- *lineout++ = *line++;
- }
- }
- }
- }
- else
- {
- while (*line != '\0' && strchr (delims, *line) == NULL)
- line++; /* Skip to delimiter */
- lineout = line;
- }
- fieldp->nfields++;
- if (*line++ == '\0')
- break;
- if (maxf != 0 && fieldp->nfields > maxf)
- break;
- *lineout = '\0';
- if (fieldp->nfields >= fieldmax)
- {
- fieldmax += field_field_inc;
- fieldp->fields =
- (char **) realloc (fieldp->fields, fieldmax * sizeof (char *));
- if (fieldp->fields == NULL)
- {
- fieldfree (fieldp);
- return NULL;
- }
- }
- }
- /*
- * Shrink the field pointers and return the field structure.
- */
- if ((flags & FLD_NOSHRINK) == 0 && fieldp->nfields >= fieldmax)
- {
- fieldp->fields = (char **) realloc (fieldp->fields,
- (fieldp->nfields + 1) * sizeof (char *));
- if (fieldp->fields == NULL)
- {
- fieldfree (fieldp);
- return NULL;
- }
- }
- fieldp->fields[fieldp->nfields] = NULL;
- return fieldp;
- }
-
-static int fieldbackch (str, out, strip)
- register char * str; /* First char of backslash sequence */
- register char ** out; /* Where to store result */
- int strip; /* NZ to convert the sequence */
- {
- register int ch; /* Character being developed */
- char * origstr; /* Original value of str */
-
- if (!strip)
- {
- *(*out)++ = '\\';
- if (*str != 'x' && *str != 'X' && (*str < '0' || *str > '7'))
- {
- *(*out)++ = *str;
- return *str != '\0';
- }
- }
- switch (*str)
- {
- case '\0':
- *(*out)++ = '\0';
- return 0;
- case 'a':
- *(*out)++ = '\007';
- return 1;
- case 'b':
- *(*out)++ = '\b';
- return 1;
- case 'f':
- *(*out)++ = '\f';
- return 1;
- case 'n':
- *(*out)++ = '\n';
- return 1;
- case 'r':
- *(*out)++ = '\r';
- return 1;
- case 'v':
- *(*out)++ = '\v';
- return 1;
- case 'X':
- case 'x':
- /* Hexadecimal sequence */
- origstr = str++;
- ch = 0;
- if (*str >= '0' && *str <= '9')
- ch = *str++ - '0';
- else if (*str >= 'a' && *str <= 'f')
- ch = *str++ - 'a' + 0xa;
- else if (*str >= 'A' && *str <= 'F')
- ch = *str++ - 'A' + 0xa;
- if (*str >= '0' && *str <= '9')
- ch = (ch << 4) | (*str++ - '0');
- else if (*str >= 'a' && *str <= 'f')
- ch = (ch << 4) | (*str++ - 'a' + 0xa);
- else if (*str >= 'A' && *str <= 'F')
- ch = (ch << 4) | (*str++ - 'A' + 0xa);
- break;
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- /* Octal sequence */
- origstr = str;
- ch = *str++ - '0';
- if (*str >= '0' && *str <= '7')
- ch = (ch << 3) | (*str++ - '0');
- if (*str >= '0' && *str <= '7')
- ch = (ch << 3) | (*str++ - '0');
- break;
- default:
- *(*out)++ = *str;
- return 1;
- }
- if (strip)
- {
- *(*out)++ = ch;
- return str - origstr;
- }
- else
- {
- for (ch = 0; origstr < str; ch++)
- *(*out)++ = *origstr++;
- return ch;
- }
- }
-
-int fieldwrite (file, fieldp, delim)
- FILE * file; /* File to write to */
- register field_t * fieldp; /* Field structure to write */
- int delim; /* Delimiter to place between fields */
- {
- int error; /* NZ if an error occurs */
- register int fieldno; /* Number of field being written */
-
- error = 0;
- for (fieldno = 0; fieldno < fieldp->nfields; fieldno++)
- {
- if (fieldno != 0)
- error |= putc (delim, file) == EOF;
- error |= fputs (fieldp->fields[fieldno], file) == EOF;
- }
- if (fieldp->hadnl)
- error |= putc ('\n', file) == EOF;
- return error;
- }
-
-void fieldfree (fieldp)
- register field_t * fieldp; /* Field structure to free */
- {
-
- if (fieldp == NULL)
- return;
- if (fieldp->linebuf != NULL)
- free ((char *) fieldp->linebuf);
- if (fieldp->fields != NULL)
- free ((char *) fieldp->fields);
- free ((char *) fieldp);
- }
+++ /dev/null
-;;; -*- Mode: Lisp; Syntax: Common-Lisp; -*-
-
-(define-language
- :grammar
- '(((S $any) -> (S1 $any))
- ((S (Compound $s1 $s2)) -> (S1 $s1) (Conjunction) (S1 $s2))
-
- ((S1 (Statement $v)) -> (NP $subj) (VP $subj $tense $v))
- ((S1 (Acknowledge $a)) -> (Acknowledge $a))
- ((S1 (Command $v)) -> (VP Self present $v))
- ((S1 (Question $v)) -> (Aux $tense) (NP $subj) (VP $subj $tense $v))
- ((S1 (Question $v)) -> (Be $tense) (NP $subj) (Be-Arg $subj $tense $v))
-
- ((Be-Arg $subj $tense (Occur $tense (loc $subj $loc))) ->
- (Loc-Adjunct $tense (loc $subj $loc)))
-
- ((VP $subj $tense (Occur $tense $v)) -> (VP1 $subj $tense $v))
- ((VP $subj $tense (Occur $tense $v)) -> (Aux $tense)(VP1 $subj present $v))
-
- ((VP1 $subj $tense $v) -> (VP2 $subj $tense $v) (Adjunct? $v))
-
- ((VP2 $subj $tense ($rel $subj $loc)) ->
- (Verb/in $rel $tense))
- ((VP2 $subj $tense ($rel $subj $loc $obj)) ->
- (Verb/tr $rel $tense) (NP $obj))
- ((VP2 $subj $tense ($rel $subj $loc $obj $obj2)) ->
- (Verb/di $rel $tense) (NP $obj) (NP $obj2))
- ((VP2 $subj $tense (loc $subj $loc)) ->
- (Be $tense) (Loc-Adjunct $tense (loc $subj $loc)))
-
- ((NP $n) -> (Pronoun $n))
- ((NP $n) -> (Article) (Noun $n))
- ((NP $n) -> (Noun $n))
- ((NP ($x $y)) -> (Number $x) (Number $y))
-
- ((PP ($prep $n)) -> (Prep $prep) (NP $n))
- ((Adjunct? $v) ->)
- ((Adjunct? $v) -> (Loc-Adjunct $tense $v))
- #+Allegro ((Loc-Adjunct $tense ($rel $subj $loc @rest)) -> (PP $loc))
- #+Allegro ((Loc-Adjunct $tense ($rel $subj $loc @rest)) -> (Adjunct $loc))
- #+Lucid ((Loc-Adjunct $tense ($rel $subj $loc . $rest)) -> (PP $loc))
- #+Lucid ((Loc-Adjunct $tense ($rel $subj $loc . $rest)) -> (Adjunct $loc))
-
- )
- :lexicon
- '(
- ((Acknowledge $a) -> (yes true) (no false) (maybe unknown) (huh unparsed))
- ((Adjunct $loc) -> here there (nearby near) near left right up down)
- ((Article) -> a an the)
- ((Aux $tense) -> (will future) (did past) (do $finite))
- ((Be $tense) -> (am present) (are present) (is present) (be $finite)
- (was past) (were past))
- ((Conjunction) -> and --)
- ((Noun $n) -> gold Wumpus pit breeze stench glitter nothing)
- ((Number $n) -> 0 1 2 3 4 5 6 7 8 9)
- ((Prep $prep) -> in at to near)
- ((Pronoun $n) -> (you self) (me master) (I master))
-
- ((Verb/in $rel $tense) -> (go move $finite) (went move past)
- (move move $finite) (move move past) (shoot shoot $finite))
- ((Verb/tr $rel $tense) -> (move carry $finite) (moved carry past)
- (carry carry $finite) (carry carried past)
- (grab grab $finite) (grab grabbed past) (get grab $finite)
- (got grab past) (release release $finite) (release release past)
- (drop release $finite) (dropped release past) (shoot shoot-at $finite)
- (shot shoot-at past) (kill shoot-at $finite) (killed shoot-at past)
- (smell perceive $finite) (feel perceive $finite) (felt perceive past))
- ((Verb/di $rel $tense) -> (bring bring $finite) (brought bring past)
- (get bring $finite) (got bring past))
- ))
-
-(defparameter *sentences*
- '((I will shoot the wumpus at 4 4)
- (yes)
- (You went right -- I will go left)
- (carry the gold)
- (yes and no)
- (did you bring me the gold)
- (a breeze is here -- I am near 5 3)
- (a stench is in 3 5)
- (a pit is nearby)
- (is the wumpus near)
- (Did you go to 3 8)
- (Yes -- Nothing is there)
- (Shoot -- Shoot left)
- (Kill the wumpus -- shoot up)))
-
-(defun ss (&optional (sentences *sentences*))
- "Run some test sentences, and count how many were not parsed."
- (count-if-not
- #'(lambda (s)
- (format t "~2&>>> ~(~{~a ~}~)~%" s)
- (write (second (parse s)) :pretty t))
- *sentences*))
+++ /dev/null
- content: @ 1099872000000000: 'HTTP/1.1 200 OK\r\nX-Google-Crawl-Date: Mon, 08 Nov 2004 17:22:09 GMT\r\nContent-Type: text/html\r\nConnection: close\r\nX-Powered-By: PHP/4.3.8\r\nServer: Apache/1.3.31 (Unix) mod_gzip/1.3.19.1a PHP/4.3.8\r\nDate: Mon, 08 Nov 2004 17:19:07 GMT\r\n\r\n <!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\r\n<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\">\r\n<BASE target=\"_top\">\r\n\n<TITLE>Micro Achat : Ordinateurs, PDA - Toute l\'informatique avec 01Informatique, L\'Ordinateur Individuel, Micro Hebdo, D\351cision Informatique et 01R\351seaux</TITLE>\r\n<META NAME=\"Description\" CONTENT=\"Micro Achat : Ordinateurs, PDA\">\r\n<META NAME=\"Keywords\" CONTENT=\"Micro Achat : Ordinateurs, PDA - Toute l\'informatique avec 01Informatique, L\'Ordinateur Individuel, Micro Hebdo, D\351cision Informatique et 01R\351seaux\">\r\n<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" HREF=\"http://www.01net.com/styles/01net.css\">\r\n<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" HREF=\"http://www.01net.com/styles/tableau_autre.css\">\r\n<STYLE type=text/css>\r\nA{TEXT-DECORATION: none;color:#000000;}\r\nA:visited{TEXT-DECORATION: none;color:#000000;}\r\n</STYLE>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nvar sameAsBigDay = new Date();\r\nvar ord = (sameAsBigDay.getTime());\r\nvar pubsMotsCles = \"\";\r\nvar exc;\r\nvar lienhautdepage = \"\";\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\nsas_tmstp=Math.round(Math.random()*10000000000);\r\nfunction SmartAdServer(sas_pageid,sas_formatid,sas_master,sas_target) {\r\n if ((sas_master!=\'M\')&&(sas_master!=\'S\')) {sas_master=\'S\'};\r\n document.write(\'<SCR\'+\'IPT SRC=\"http://www.smartadserver.com/call/pubj/\' + sas_pageid + \'/\' + sas_formatid + \'/\'+sas_master + \'/\' + sas_tmstp + \'/\' + escape(sas_target) + \'?\"></SCR\'+\'IPT>\');\r\n}\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\" SRC=\"http://www.01net.com/js/exc.js\"></SCRIPT>\r\n<script language=\"javascript\" src=\"http://telecharger.01net.com/shopping/js/headservicesV4.js\"></script>\r\n<noscript>\r\n<a href=\"http://cinema.01net.com\">T\351l\351charger des bandes-annonces, des teasers, des extraits et des making of de vos films cin\351ma pr\351f\351r\351s</a>,\r\n<a href=\"http://www.01net.com/BusinessTechnologies/\">Portail leader de l\'information sur les nouvelles technologies - Actualites et enquetes sur l\'informatique et les NTIC (nouvelles technologies de l\'information et la communication). 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style=\"background-image:url(/img/v4/tet_droite-mha.gif);background-position:bottom;background-repeat:repeat-x\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=66 align=left hspace=0 vspace=0></td>\r\n\t</tr>\r\n</table>\r\n<table width=100% cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td valign=top background=\"http://www.01net.com/img/v4/fond_date-mha.gif\" height=18 width=500><img src=\"http://www.01net.com/img/dot.gif\" width=500 height=1><br><img src=\"http://www.01net.com/img/dot.gif\" width=19 height=1><font face=\"Arial\" size=1 color=#666666 style=\"font-size: 11px;\"><b>Derni\350re mise \340 jour de cette page : lundi 8 novembre 2004 | 16:45</b></font></td>\r\n\t\t<td width=100% background=\"http://www.01net.com/img/v4/fond_date2-mha.gif\" height=18></td>\r\n\t</tr>\r\n</table>\r\n<!-- ********** FIN MODELE INTERNE TETES MHA-tetev4 //--> <!-- - ZONE TETE -->\r\n<!-- ***************************************************************************************************************************************************************************************************************************** //-->\r\n<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n<!-- DEBUT PARTIE PUB //-->\r\n\t<tr>\r\n<td align=center valign=middle colspan=2 background=\"http://www.01net.com/img/v4/fond_bann.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br>\r\n<!-- + ZONE Z0 -->\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\">\r\nvar fa = \"\";\r\nvar fab = document.URL.toString();\r\nif (fab.indexOf(\"?fa\") != -1 || fab.indexOf(\"&fa\") != -1)\r\n{\r\nfa = \";!category=fai\";\r\n}\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nsas_pageid=\'167/3872\';\r\nsas_formatid=95;\t\t\t// Format : Banner/Scope 468x60\r\nsas_master=\'M\';\t\t\t// Master : M=master or S=slave\r\nsas_target=exc + 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background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Imagerie </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/12537-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/imagerie/moniteurs-lcd/l1720b/\">LG L1720B</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">332.89 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4043-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/veriton-7600g/\">Acer Veriton 7600G</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">705 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1903-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sn95g5/\">Shuttle SN95G5</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">375 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1259-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/cartes-meres/a7n8x-e-deluxe/\">Asus A7N8X-E Deluxe</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">91.99 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4687-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/ventilateur/sp-94/\">Thermalright SP-94</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">49 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr></table>\n\t\t\t\t<table style=\"border-spacing : 0px 1px; width : 146px; margin-top : 15px;\" cellspacing=\"0\">\n\t\t\t\t<tr><th colspan=\"2\" style=\"padding : 0;\"><img src=\"http://micro-achat.01net.com/img/utils/micro-achat/tete-revendeurmisajour.gif\" alt=\"\" /></th></tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">1 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Rhone-Alpes/Ain/pc-look\" style=\"color : #000000; text-decoration : none;\">PC Look</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">2 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Nord-Pas-de-Calais/Pas-de-Calais/atelier-informatique\" style=\"color : #000000; text-decoration : none;\">Atelier Informatique</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">3 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Val-de-Marne/zanax-multimedia\" style=\"color : #000000; text-decoration : none;\">Zanax Multim\351dia</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">4 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Hauts-de-Seine/misteroops\" style=\"color : #000000; text-decoration : none;\">MISTEROOPS</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">5 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/168-golden-avenue\" style=\"color : #000000; text-decoration : none;\">168 Golden Avenue</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">6 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-Saint-Denis/microchoix\" style=\"color : #000000; text-decoration : none;\">microchoix</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">7 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/e-soph\" style=\"color : #000000; text-decoration : none;\">e-Soph</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">8 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/13/pc-price-club\" style=\"color : #000000; text-decoration : none;\">PC Price Club</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">9 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-et-Marne/pc-77\" style=\"color : #000000; text-decoration : none;\">PC 77</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">10 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Alsace/Bas-Rhin/web-in-informatique\" style=\"color : #000000; text-decoration : none;\">Web In Informatique</a></td>\n\t\t\t\t</tr></table>\n\t\t\t\t</div>\n\t\t\t\t<br>\r\n<!-- FIN MA_ColD --> <!-- - ZONE D0 -->\r\n<!-- + ZONE D1 -->\r\n<!-- - ZONE D1 -->\r\n<!-- + ZONE D2 -->\r\n<!-- - ZONE D2 -->\r\n<!-- -ZONE_Dn -->\r\n</td>\r\n\t</tr>\r\n<!-- FIN PARTIE PUB //-->\r\n\t<tr>\r\n\t\t<td valign=top width=193 height=100% background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n\t\t<!-- contenu colonne de gauche //-->\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0 background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<!-- +ZONE_Gn -->\r\n<!-- + ZONE G0 -->\r\n<tr><!-- ********** DEBUT MHA_MenusChainesV4 //-->\r\n<td valign=top>\n<table border=0 cellpadding=0 cellspacing=0 width=193 bgcolor=#FFFFFF>\n<tr>\n<td background=\"/img/v4/menus/motifgauche_menus.gif\" width=20 rowspan=2><img src=\"/img/dot.gif\" width=20 height=20></td>\n<td width=173 colspan=2 bgcolor=#FFFFFF><img src=\"/img/dot.gif\" width=173 height=20></td>\n</tr>\n<tr>\n<td valign=top width=159>\n\n<a href=\"http://www.01net.com\"><img src=\"/img/v4/menus/mha/home01net-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com\"><img src=\"/img/v4/menus/mha/home-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4317.html\"><img src=\"/img/v4/menus/mha/ordinateurs-2.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4318.html\"><img src=\"/img/v4/menus/mha/composants-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4319.html\"><img src=\"/img/v4/menus/mha/stockage-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4320.html\"><img src=\"/img/v4/menus/mha/image-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4321.html\"><img src=\"/img/v4/menus/mha/peripheriques-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4322.html\"><img src=\"/img/v4/menus/mha/reseaux-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4323.html\"><img src=\"/img/v4/menus/mha/accessoires-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/guide-produits/\"><img src=\"/img/v4/menus/mha/comparateur-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/annuaire/\"><img src=\"/img/v4/menus/mha/annuaire-1.gif\" width=159 border=0></a><br></td>\n<td width=14><img src=\"/img/dot.gif\" width=14 height=14></td>\n</tr>\n<tr>\n<td colspan=3><img src=\"/img/v4/menus/bas_menus.gif\" width=193 height=31></td>\n</tr>\n</table></td><!-- ********** FIN MHA_MenusChainesV4 //--> </tr><!-- - ZONE G0 -->\r\n<!-- + ZONE G1 -->\r\n<tr><!-- DEBUT MODELE RUBRIQUE V4ColGaucheMHA //-->\r\n<!-- ********** DEBUT BLOC DernieresNewsTC //-->\r\n<td valign=top>\r\n<!-- DEBUT RECHERCHE MHA -->\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top background=\"http://microachat.01net.com/img/v4/fond_rech_mha.gif\" height=98 style=\"background-repeat:no-repeat;\"><form method=\"get\" name=\"chercher\" action=\"http://www.01net.com/aiguillage_recherche/1,6138,,00.html\"><img src=\"http://microachat.01net.com/img/dot.gif\" width=193 height=17><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"text\" name=\"fullText\" style=\"width:130px;font:12px;\"><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=6><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><select name=\"sousArbo\" style=\"width:130px;font:12px;\">\r\n\t\t\t<option value=\"mha\">dans Micro Achat\r\n\t\t\t<option value=\"cmp\">les prix\r\n\t\t\t<option value=\"ann\">les revendeurs\r\n\t\t\t<option value=\"2641\">tout 01net.\r\n\t\t\t<option value=\"emploi\">les offres d\'emploi\r\n\t\t\t<option value=\"telecharger\"> telecharger.com\r\n\t\t\t<option value=\"web\">le web\r\n\t\t\t</select><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://microachat.01net.com/img/v4/ok_bloc_recher_mha.gif\" border=\"0\"></form>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10 vspace=0>\r\n<!-- FIN RECHERCHE MHA -->\r\n <!-- modele TCFilColgTitV4 //-->\r\n <table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/ban/Ban_v4_DernieresNews01net.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/256059.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">CD et DVD bient\364t insensibles aux rayures<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255796.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">OpenOffice gagne son service<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255731.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">La messagerie en cinq minutes selon Ipswitch<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top colspan=2><A HREF=\"http://www.01net.com/actus/\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\">> toutes les news<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/crochet_bleuhaut_155.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20> <!-- ********** FIN BLOC DernieresNewsTC //-->\r\n<!-- ********** DEBUT BLOC NL_MHA //-->\r\n<SCRIPT language=\"javascript\" src=\"http://www.01net.com/js/lib.js\"></SCRIPT>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"formgen\" method=\"get\" action=\"http://microachat.01net.com/outils/newsletter_MicroAchat.html\" onSubmit=\"return validateForm(this)\">\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/ban/Ban_V4_Newslett.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=153>\r\n\t\t<table width=153 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefinefd_ffffff.gif\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Recevez chaque jour l\'actualit\351 des produits et des promos<br></font>\r\n\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"email\" size=\"14\" style=\"width:130px;font:12px;\" value=\"entrez votre e-mail\" onFocus=\"javascript:document.formgen.email.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://www.01net.com/img/v4/ok_bloc_recher.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/v4/base_newsletters.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n<SCRIPT language=\"Javascript\">\r\ndocument.formgen.email.validator= \'notNullEmailPat\';\r\ndocument.formgen.email.nomvalidator= \'E-mail\';\r\n</SCRIPT>\r\n<!-- ********** FIN BLOC NL_MHA //-->\r\n</td>\r\n</tr>\r\n<tr>\r\n<!-- ********** DEBUT BLOC Actus ActusUneV4 //-->\r\n<td valign=top background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/ban/Ban_v4_LaUne.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/entreprise/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Entreprise</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://www.01net.com/article/255737.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Quand le billet papier s\'envole vers la d\351mat\351rialisation</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255737.html\"><img src=\"http://www.01net.com/img/MEA_v4/billet_virtuel-65.jpg\" border=0></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/pratique/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Trucs et astuces</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255698.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">D\351pannez Windows XP</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255698.html\"><img src=\"http://www.01net.com/img/MEA_v4/depannez_XP-65.jpg\" border=0 ></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t</tr>\r\n\t\t <tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/conso/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Conso</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255524.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Vos photos sur papier imprimante ou labo ?<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t<!-- exemple de lien avec pseudorub pour produits et tests -->\r\n\t\t<!-- <a href=\"/outils/PseudoRub.php?base=test-comp&rub=1730&pseudo=test-comp20041005\"> -->\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/produits/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Produits & Tests</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255782.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">5 programmes d\222encodage vid\351o gratuits<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n</td>\r\n<!-- ********** FIN BLOC Actus ActusUneV4 //--> </tr>\r\n<tr>\r\n<td>\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top><a href=\"mailto:s.cohen@micro-achat.fr\"><img border=0 src=\"http://www.01net.com/img/v4/espace-revendeurs.gif\"></td>\r\n\t</tr>\r\n</table>\r\n<br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20></td>\r\n<!-- FIN MODELE RUBRIQUE V4ColGaucheMHA //--> </tr><!-- - ZONE G1 -->\r\n<!-- + ZONE G2 -->\r\n<!-- - ZONE G2 -->\r\n<!-- + ZONE G3 -->\r\n<!-- - ZONE G3 -->\r\n<!-- + ZONE G4 -->\r\n<!-- - ZONE G4 -->\r\n<!-- + ZONE G5 -->\r\n<!-- - ZONE G5 -->\r\n<!-- + ZONE G6 -->\r\n<!-- - ZONE G6 -->\r\n<!-- + ZONE G7 -->\r\n<!-- - ZONE G7 -->\r\n<!-- + ZONE G8 -->\r\n<!-- - ZONE G8 -->\r\n<!-- + ZONE G9 -->\r\n<!-- - ZONE G9 -->\r\n<!-- + ZONE GA -->\r\n<!-- - ZONE GA -->\r\n<!-- + ZONE GB -->\r\n<!-- - ZONE GB -->\r\n<!-- + ZONE GC -->\r\n<!-- - ZONE GC -->\r\n<!-- + ZONE GD -->\r\n<!-- - ZONE GD -->\r\n<!-- + ZONE GE -->\r\n<!-- - ZONE GE -->\r\n<!-- + ZONE GF -->\r\n<!-- - ZONE GF -->\r\n<!-- -ZONE_Gn -->\r\n\t\t</table>\r\n\t\t<!-- fin contenu colonne de gauche //-->\r\n\t\t</td>\r\n<!-- ***************************************************************** DEBUT VENTRE*********************************************************************************************************************************************** //-->\r\n<!-- DEBUT WORK -->\r\n\t\t<td valign=top width=625 bgcolor=#ffffff><img src=\"http://www.01net.com/img/dot.gif\" width=625 height=1><br>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_hn -->\r\n<!-- + ZONE h0 -->\r\n<!-- MA_ban_int -->\r\n<td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=\"18\"><br>\r\n<!-- pour ordipda -->\r\n<table width=\"625\" cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"/img/v4/MA/Ban_MA_ordis.gif\"></td>\r\n\t</tr>\r\n</table>\r\n\t</td>\r\n<!-- /MA_ban_int --> <!-- - ZONE h0 -->\r\n<!-- + ZONE h1 -->\r\n<!-- - ZONE h1 -->\r\n<!-- + ZONE h2 -->\r\n<!-- - ZONE h2 -->\r\n<!-- -ZONE_hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Hn -->\r\n<!-- + ZONE H0 -->\r\n<!-- Ma_int_Leader -->\r\n <td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=320>\r\n<tr>\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Un nouvel ultra portable r\351alis\351 par Nec</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67509.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Le Versa S940 a un format r\351duit, mais ses performances sont \340 la hauteur.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1663 \200</font>\r\n</td>\r\n<td width=17 background=\"/img/v4/MA/v4-fond-sep-mea-leader.gif\"><img src=\"/img/dot.gif\" width=17 height=1></td>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Asus pr\351sente trois petits nouveaux dans la gamme A3N</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67168.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Ces trois portables Centrino int\350grent, entre autres, une webcam et un contr\364leur Wi-Fi.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1346 \200</font>\r\n</td>\r\n<td width=15><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t\t</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_int_Leader --> <!-- - ZONE H0 -->\r\n<!-- + ZONE H1 -->\r\n<!-- - ZONE H1 -->\r\n<!-- + ZONE H2 -->\r\n<!-- MA_BP_MP -->\r\n<td valign=\"top\" width=\"100%\">\r\n\t<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\r\n\t<tr>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_BonPlan -->\r\n<td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=1 cellspacing=0 width=145 bgcolor=#CC0000>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">BON PLAN</a></font></td>\r\n</tr>\r\n<tr>\r\n<td width=145>\r\n<div style=\"padding:5px;padding-left:5px;padding-fight:5px;margin:0px;margin-left:1px;margin-right:1px;background-color:#FFFFFF;\">\r\n<img src=\"/img/microachat/logo_shuttle_SB83G5.gif\" border=0><br>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:12px;\">Les derni\350res technologies INTEL dans un nouveau design pour ce shuttle haut de gamme, pour un prix abordable.<br></font>\r\n<center><a href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sb83g5/?fabriquant=1&page=1&tri=titre\"><img src=\"/img/microachat/mea_shuttle_SB83G5.gif\" border=0 vspace=5></a><br></center>\r\n<center>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:13px;\"><b>\340 partir de</b><br>\r\n<div style=\"border:solid 2px #CC0000;width:100px;background-color:#FFCC00;\"><b>415 \200</b></div>\r\n</center>\r\n</div>\r\n</td>\r\n</tr>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">publicit\351</a></font></td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_BonPlan --> \t</td>\r\n\t<td width=\"15\"><img src=\"/img/dot.gif\" width=\"15\"></td>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_MeillPrixAct //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=145 height=1><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=18><br>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"prix\" action=\"http://www.micro-achat.01net.com/guide-produits/recherche.php\" method=\"post\">\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/ban/Ban_v4_MeillPrix_MA.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=143>\r\n\t\t<table width=143 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=6><img src=\"http://www.01net.com/img/dot.gif\" width=6 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img src=\"http://www.01net.com/img/ban/Ban_MA_trouv_ordi.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Desktops</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/portables/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Portables</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Mini-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/pda---tablets-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Pda / Tablets-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/apple/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Apple</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/gps/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">GPS</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20><br>\r\n\t\t\t\t\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"width:130px;font:12px;\" value=\" recherche directe\" onFocus=\"javascript:document.prix.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/v4/MA/base_meillPrix.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_MeillPrixAct //--> \t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n<!-- /MA_BP_MP --> <!-- - ZONE H2 -->\r\n<!-- -ZONE_Hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Tn -->\r\n<!-- + ZONE T0 -->\r\n <td valign=\"top\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n<tr>\r\n<td width=305><img src=\"http://www.01net.com/img/ban/Ban_v4_DernNews_MA.gif\"><br><img src=\"http://www.01net.com/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n</tr>\r\n<tr>\r\n<td bgcolor=\"#FEF9E0\">\r\n\t<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255149.html\" style=\"color:#000000;text-decoration:none;\">Toshiba consacre deux gammes de machines au multim\351dia</a></b><br>\r\n\t<font color=\"#000000\">Equipement haut de gamme et Windows Media Center sont au menu de ces portables \340 vocation multim\351dia.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Ordinateur <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254686.html\" style=\"color:#000000;text-decoration:none;\">Arriv\351e d\'un Power Mac G5 d\'entr\351e de gamme</a></b><br>\r\n\t<font color=\"#000000\">La firme \340 la pomme propose une station de travail \351volutive et relativement abordable.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>PC <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254549.html\" style=\"color:#000000;text-decoration:none;\">Alienware propose deux machines au look \351trange</a></b><br>\r\n\t<font color=\"#000000\">Aurora et Area 51 sont deux gammes d\'ordinateurs enti\350rement configurables.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254501.html\" style=\"color:#000000;text-decoration:none;\">Trois nouveaux iBook G4 chez Apple</a></b><br>\r\n\t<font color=\"#000000\">Chez Apple, les portables gagnent en vitesse et communiquent sans fil en standard.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t\t<tr>\r\n\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td align=\"right\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4365.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les news</font></a>\r\n\t\t\t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n</td> <!-- - ZONE T0 -->\r\n<!-- + ZONE T1 -->\r\n<!-- Ma_derpromo -->\r\n <td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=13><br>\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td bgcolor=\"#ffffff\"><img src=\"/img/v4/MA/v4-lespromos-mha.gif\"><br><img src=\"/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n</tr>\r\n</table>\r\n<!-- DEBUT MODELE D\'AFFICHAGE POUR LES n PREMIERS ARTICLES //-->\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255806.html\" class=\"nodeco\"><img src=\"/images/67462.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255806.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Asus A3N15-C Pro</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable autonome et puissant gr\342ce \340 la technologie Intel Centrino.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1170 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255688.html\" class=\"nodeco\"><img src=\"/images/67381.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255688.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Soltek EQ3702A Miroir</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Ce mini PC est une solution int\351ressante pour les utilisateurs poss\351dant d\351j\340 un \351cran.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>559 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255513.html\" class=\"nodeco\"><img src=\"/images/67319.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255513.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>IBM ThinkPad R51</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable complet et pourtant relativement l\351ger.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1299 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t\t<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n</tr>\r\n<tr>\r\n<td background=\"/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"/img/dot.gif\" height=1></td>\r\n</tr>\r\n<tr>\r\n<td align=\"right\" valign=\"top\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4366.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les promos</font></a>\r\n\t\t</td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_derpromo --> <!-- - ZONE T1 -->\r\n<!-- + ZONE T2 -->\r\n<!-- - ZONE T2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE T3 -->\r\n<!-- DEBUT MicroAchat MA_PubG -->\r\n<td valign=top align=center>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45590/[timestamp]?\" target=_blank><img src=\"/img/microachat/Bandeau_FX6021.jpg\" border=0></a></td>\r\n\t\t<td><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubG --> <!-- - ZONE T3 -->\r\n<!-- + ZONE T4 -->\r\n<!-- DEBUT MicroAchat MA_PubD -->\r\n<td valign=top align=center>\r\n<table border=0 width=305 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45591/[timestamp]?\" target=_blank><img src=\"/img/microachat/twc_305x125.jpg\" border=0></a></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubD --> <!-- - ZONE T4 -->\r\n<!-- + ZONE T5 -->\r\n<!-- - ZONE T5 -->\r\n<!-- -ZONE_Tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n<!-- +ZONE_gn -->\r\n<!-- + ZONE g0 -->\r\n<!-- - ZONE g0 -->\r\n<!-- + ZONE g1 -->\r\n<!-- - ZONE g1 -->\r\n<!-- + ZONE g2 -->\r\n<!-- - ZONE g2 -->\r\n<!-- + ZONE g3 -->\r\n<!-- - ZONE g3 -->\r\n<!-- + ZONE g4 -->\r\n<!-- - ZONE g4 -->\r\n<!-- + ZONE g5 -->\r\n<!-- - ZONE g5 -->\r\n<!-- + ZONE g6 -->\r\n<!-- - ZONE g6 -->\r\n<!-- + ZONE g7 -->\r\n<!-- - ZONE g7 -->\r\n<!-- + ZONE g8 -->\r\n<!-- - ZONE g8 -->\r\n<!-- + ZONE g9 -->\r\n<!-- - ZONE g9 -->\r\n<!-- -ZONE_gn -->\r\n\t\t\t</table>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t\t\t<tr>\r\n<!-- +ZONE_Mn -->\r\n<!-- + ZONE M0 -->\r\n<!-- modele Ma_GuideAch //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_GuideAchat_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<center>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67088.jpg.res_121-111.jpg\" border=0 hspace=0 vspace=0></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n</center>\r\n<div style=\"padding:5px;\">\r\n<a href=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\"><b>Les graveurs de DVD</b><br></font></a>\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Quel graveur choisir ? Quel type de format ? Quelle vitesse ? Double couche ou simple couche ? Voici tout ce qu\'il faut savoir pour faire le bon choix.</font></div>\r\n\t\t\t\t\t\t</div>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M0 -->\r\n<!-- + ZONE M1 -->\r\n<!-- modele Ma_DirectLab //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_DirectLab_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255744.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Kodak EasyShare Printer Dock Plus :</b>\r\n\t\t\t\t\t\tvos photos 10 x 15 cm en 60 secondes</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255780.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>3DMark05 :</b>\r\n\t\t\t\t\t\tun labo 3D \340 domicile</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255691.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>DVDInfoPro 2.6</b>\r\n\t\t\t\t\t\treconna\356t CD et DVD</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255722.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Scaleo PA D3008, de Fujitsu-Siemens :</b>\r\n\t\t\t\t\t\tune impression d\'inachev\351</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255514.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Carbon 5 Go : 2 500 chansons dans le creux de la main</font></a></div>\r\n\t\t\t</div></td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M1 -->\r\n<!-- + ZONE M2 -->\r\n<!-- DEBUT MicroAchat MA_AnnTelec -->\r\n<td valign=top>\r\n<script type=\"text/javascript\">\r\nfunction regionChange()\r\n{\r\ndocument.selection.departement.options.length=0;\r\nswitch(document.selection.region.value)\r\n\t{\r\n\t\tcase \"aucun\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Nord-Pas-de-Calais\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pas-de-Calais\", \"Pas-de-Calais\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nord\", \"Nord\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Haute-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure\", \"Eure\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Maritime\", \"Seine-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Basse-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Manche\", \"Manche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Calvados\", \"Calvados\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Orne\", \"Orne\");\r\n\t\tbreak;\r\n\t\tcase \"Picardie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Somme\", \"Somme\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Oise\", \"Oise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aisne\", \"Aisne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bretagne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Finistere\", \"Finistere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cotes-dArmor\", \"Cotes-dArmor\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Morbihan\", \"Morbihan\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ille-et-Vilaine\", \"Ille-et-Vilaine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Pays-de-Loire\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire-Atlantique\", \"Loire-Atlantique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vendee\", \"Vendee\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Maine-et-Loire\", \"Maine-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayenne\", \"Mayenne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Sarthe\", \"Sarthe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Centre\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure-et-Loir\", \"Eure-et-Loir\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loiret\", \"Loiret\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loir-et-Cher\", \"Loir-et-Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre-et-Loire\", \"Indre-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre\", \"Indre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cher\", \"Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Ile-de-France\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-dOise\", \"Val-dOise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yvelines\", \"Yvelines\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Essonne\", \"Essonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-et-Marne\", \"Seine-et-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hauts-de-Seine\", \"Hauts-de-Seine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Saint-Denis\", \"Seine-Saint-Denis\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-de-Marne\", \"Val-de-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Paris\", \"Paris\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Champagnes-Ardennes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardennes\", \"Ardennes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Marne\", \"Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aube\", \"Aube\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Marne\", \"Haute-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Lorraine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vosges\", \"Vosges\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meurthe-et-Moselle\", \"Meurthe-et-Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meuse\", \"Meuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Moselle\", \"Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Alsace\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bas-Rhin\", \"Bas-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haut-Rhin\", \"Haut-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Franche-Compte\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Jura\", \"Jura\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Doubs\", \"Doubs\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Saone\", \"Haute-Saone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Territoire-de-Belfort\", \"Territoire-de-Belfort\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bourgogne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yonne\", \"Yonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nievre\", \"Nievre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cote-dOr\", \"Cote-dOr\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Saone-et-Loire\", \"Saone-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Poitou-Charentes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Deux-Sevres\", \"Deux-Sevres\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente-Maritime\", \"Charente-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente\", \"Charente\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vienne\", \"Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Limousin\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Vienne\", \"Haute-Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Correze\", \"Correze\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Creuse\", \"Creuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Auvergne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Allier\", \"Allier\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Puy-de-Dome\", \"Puy-de-Dome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cantal\", \"Cantal\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Loire\", \"Haute-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Rhone-Alpes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire\", \"Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Rhone\", \"Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ain\", \"Ain\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardeche\", \"Ardeche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Drome\", \"Drome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Isere\", \"Isere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Savoie\", \"Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Savoie\", \"Haute-Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Aquitaine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gironde\", \"Gironde\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Landes\", \"Landes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Atlantiques\", \"Pyrenees-Atlantiques\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot-et-Garonne\", \"Lot-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Dordogne\", \"Dordogne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Midi-Pyrenees\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot\", \"Lot\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn-et-Garonne\", \"Tarn-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gers\", \"Gers\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Pyrenees\", \"Hautes-Pyrenees\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Garonne\", \"Haute-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ariege\", \"Ariege\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn\", \"Tarn\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aveyron\", \"Aveyron\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Languedoc-Roussillon\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Orientales\", \"Pyrenees-Orientales\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aude\", \"Aude\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Herault\", \"Herault\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gard\", \"Gard\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lozere\", \"Lozere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Provence-Alpes-Cote-dazur\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bouches-du-Rhone\", \"Bouches-du-Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vaucluse\", \"Vaucluse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-de-haute-Provence\", \"Alpes-de-haute-Provence\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Alpes\", \"Hautes-Alpes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Var\", \"Var\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-Maritimes\", \"Alpes-Maritimes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Corse\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Corse-du-Sud\", \"Corse-du-Sud\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Corse\", \"Haute-Corse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"DomTom\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guadeloupe\", \"Guadeloupe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guyane\", \"Guyane\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"La-Reunion\", \"La-Reunion\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Martinique\", \"Martinique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayotte\", \"Mayotte\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"St-Pierre-et-Miquelon\", \"St-Pierre-et-Miquelon\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t}\r\n}\r\nfunction deptChange()\r\n{\r\nif (document.selection.departement.value == \'Paris\')\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'inline\';\r\nelse\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'none\';\r\n}\r\n</script>\r\n<table width=305 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td valign=top>\r\n\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_AnnuaiRev_MA.gif\" vspace=1></td>\r\n\t\t\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr><form action=\"http://micro-achat.01net.com/annuaire/recherche.php\" method=\"post\" name=\"selection\">\r\n\t\t\t\t<td bgcolor=#FFFFDD>\r\n\t\t\t\t<div style=\"border:solid 1px #FFCC00;width:100%\"><div style=\"padding:2px;\"><img src=\"http://www.01net.com/img/v4/MA/carte_revend.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Choisir une r\351gion</b><br></font>\r\n<select name=\"region\" onChange=\"regionChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n<option value=\"Nord-Pas-de-Calais\">Nord-Pas-de-Calais</option>\r\n<option value=\"Haute-Normandie\">Haute-Normandie</option>\r\n<option value=\"Basse-Normandie\">Basse-Normandie</option>\r\n<option value=\"Picardie\">Picardie</option>\r\n<option value=\"Bretagne\">Bretagne</option>\r\n<option value=\"Pays-de-Loire\">Pays-de-Loire</option>\r\n<option value=\"Centre\">Centre</option>\r\n<option value=\"Ile-de-France\">Ile-de-France</option>\r\n<option value=\"Champagnes-Ardennes\">Champagne ardennes</option>\r\n<option value=\"Lorraine\">Lorraine</option>\r\n<option value=\"Alsace\">Alsace</option>\r\n<option value=\"Franche-Compte\">Franche-Compte</option>\r\n<option value=\"Bourgogne\">Bourgogne</option>\r\n<option value=\"Poitou-Charentes\">Poitou-Charentes</option>\r\n<option value=\"Limousin\">Limousin</option>\r\n<option value=\"Auvergne\">Auvergne</option>\r\n<option value=\"Rhone-Alpes\">Rhone-Alpes</option>\r\n<option value=\"Aquitaine\">Aquitaine</option>\r\n<option value=\"Midi-Pyrenees\">Midi-Pyrenees</option>\r\n<option value=\"Languedoc-Roussillon\">Languedoc roussillon</option>\r\n<option value=\"Provence-Alpes-Cote-dazur\">PACA</option>\r\n<option value=\"Corse\">Corse</option>\r\n<option value=\"DomTom\">DomTom</option>\r\n</select>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un d\351partement</b><br></font>\r\n<select name=\"departement\" onChange=\"deptChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n</select>\r\n<div id=\"arrondissement\" style=\"display : none;\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un arrondissement</b><br></font>\r\n<select name=\"arrondissement\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"0\">-------------</option>\r\n<option value=\"1\">I</option>\r\n<option value=\"2\">II</option>\r\n<option value=\"3\">III</option>\r\n<option value=\"4\">IV</option>\r\n<option value=\"5\">V</option>\r\n<option value=\"6\">VI</option>\r\n<option value=\"7\">VII</option>\r\n<option value=\"8\">VIII</option>\r\n<option value=\"9\">IX</option>\r\n<option value=\"10\">X</option>\r\n<option value=\"11\">XI</option>\r\n<option value=\"12\">XII</option>\r\n<option value=\"13\">XIII</option>\r\n<option value=\"14\">XIV</option>\r\n<option value=\"15\">XV</option>\r\n<option value=\"16\">XVI</option>\r\n<option value=\"17\">XVII</option>\r\n<option value=\"18\">XVIII</option>\r\n<option value=\"19\">XIX</option>\r\n<option value=\"20\">XX</option>\r\n</select>\r\n</div>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche directe</b><br></font>\r\n\t\t\t\t<font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\"><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>rechercher une ville<br><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>et/ou une boutique<br></font>\r\n\t\t\t\t<input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;width:130px;\" value=\"\" onFocus=\"javascript:document.selection.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=3><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1> <input type=\"image\" src=\"http://www.01net.com/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\">\r\n\t\t\t\t<table height=23 width=135 cellspacing=0 cellpadding=0 border=0 bgcolor=#FFEE77>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td bgcolor=#FFEE77 valign=middle align=center><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://micro-achat.01net.com/annuaire/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche avanc\351e</b></font></a></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t</div>\r\n\t\t\t\t</div>\r\n\t\t\t\t</td>\r\n\t\t\t</tr></form>\r\n\t\t</table>\r\n\t\t</td>\r\n<!-- DEBUT MicroAchat MA_Telecharg //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/v4/MA/Ban_v4_MA_telec.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"#DFECF6\">\r\n\t\t\t<tr>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"></td>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Bureautique\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Bureautique</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Traducteur, organiseur...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Multimedia\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Multim\351dia</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Photo, audio, vid\351o...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Utilitaire\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Utilitaires</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Antivirus, pilotes, gravure...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Personnaliser\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Personnaliser son PC</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Ecrans de veille, th\350mes...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Programmation\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>D\351veloppement</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Cr\351ation de logiciels, BDD...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Jeux\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Jeux</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Action, simulation...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Internet\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Internet</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Utilitaires, email, FTP...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Loisirs\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Loisirs</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Humour, culture...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_Telecharg //--> \t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_AnnTelec --> <!-- - ZONE M2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE M3 -->\r\n<!-- - ZONE M3 -->\r\n<!-- + ZONE M4 -->\r\n<!-- - ZONE M4 -->\r\n<!-- + ZONE M5 -->\r\n<!-- - ZONE M5 -->\r\n<!-- -ZONE_Mn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t<tr>\r\n<!-- +ZONE_tn -->\r\n<!-- + ZONE t0 -->\r\n<!-- - ZONE t0 -->\r\n<!-- + ZONE t1 -->\r\n<!-- - ZONE t1 -->\r\n<!-- + ZONE t2 -->\r\n<!-- - ZONE t2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE t3 -->\r\n<!-- - ZONE t3 -->\r\n<!-- + ZONE t4 -->\r\n<!-- - ZONE t4 -->\r\n<!-- + ZONE t5 -->\r\n<!-- - ZONE t5 -->\r\n<!-- -ZONE_tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td valign=top>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t<tr>\r\n<!-- +ZONE_dn -->\r\n<!-- + ZONE d0 -->\r\n<!-- - ZONE d0 -->\r\n<!-- + ZONE d1 -->\r\n<!-- - ZONE d1 -->\r\n<!-- + ZONE d2 -->\r\n<!-- - ZONE d2 -->\r\n<!-- + ZONE d3 -->\r\n<!-- - ZONE d3 -->\r\n<!-- + ZONE d4 -->\r\n<!-- - ZONE d4 -->\r\n<!-- + ZONE d5 -->\r\n<!-- - ZONE d5 -->\r\n<!-- + ZONE d6 -->\r\n<!-- - ZONE d6 -->\r\n<!-- + ZONE d7 -->\r\n<!-- - ZONE d7 -->\r\n<!-- + ZONE d8 -->\r\n<!-- - ZONE d8 -->\r\n<!-- + ZONE d9 -->\r\n<!-- - ZONE d9 -->\r\n<!-- -ZONE_dn -->\r\n\t\t\t\t</tr>\r\n\t\t\t</table>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t</table>\r\n<!-- FIN WORK -->\r\n\t\t</td>\r\n<!-- *********************************************************************FIN VENTRE********************************************************************************************************************************************** //-->\r\n\t\t<td rowspan=2 valign=top width=23 background=\"http://www.01net.com/img/v4/sep_verticale.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=23 height=1><br></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t\t<td colspan=2>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=100%>\r\n<!-- +ZONE_Bn -->\r\n<!-- + ZONE B0 -->\r\n<!-- - ZONE B0 -->\r\n<!-- + ZONE B1 -->\r\n<tr><!-- ********** DEBUT BLOC Home NosJournauxV4 //-->\r\n<td valign=top bgcolor=#FFFFFF>\r\n<img src=\"http://www.01net.com/img/ban/Ban_v4_jx.gif\"><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1>\r\n<a href=\"http://www.01net.com/rubrique/3339.html\"><img src=\"http://www.01net.com/img/journaux/01I-small.gif\" border=0 vspace=0 hspace=12 align=top></a>\r\n<a href=\"http://www.01net.com/rubrique/4051.html\"><img src=\"http://www.01net.com/img/journaux/DSI-small.gif\" border=0 vspace=0 hspace=12 align=top></a>\r\n<a href=\"http://www.01net.com/rubrique/3345.html\"><img src=\"http://www.01net.com/img/journaux/DIN-small.gif
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- content: @ 1099872000000000: 'HTTP/1.1 200 OK\r\nX-Google-Crawl-Date: Mon, 08 Nov 2004 17:22:09 GMT\r\nContent-Type: text/html\r\nConnection: close\r\nX-Powered-By: PHP/4.3.8\r\nServer: Apache/1.3.31 (Unix) mod_gzip/1.3.19.1a PHP/4.3.8\r\nDate: Mon, 08 Nov 2004 17:19:07 GMT\r\n\r\n <!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\r\n<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\">\r\n<BASE target=\"_top\">\r\n\n<TITLE>Micro Achat : Ordinateurs, PDA - Toute l\'informatique avec 01Informatique, L\'Ordinateur Individuel, Micro Hebdo, D\351cision Informatique et 01R\351seaux</TITLE>\r\n<META NAME=\"Description\" CONTENT=\"Micro Achat : Ordinateurs, PDA\">\r\n<META NAME=\"Keywords\" CONTENT=\"Micro Achat : Ordinateurs, PDA - Toute l\'informatique avec 01Informatique, L\'Ordinateur Individuel, Micro Hebdo, D\351cision Informatique et 01R\351seaux\">\r\n<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" HREF=\"http://www.01net.com/styles/01net.css\">\r\n<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" HREF=\"http://www.01net.com/styles/tableau_autre.css\">\r\n<STYLE type=text/css>\r\nA{TEXT-DECORATION: none;color:#000000;}\r\nA:visited{TEXT-DECORATION: none;color:#000000;}\r\n</STYLE>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nvar sameAsBigDay = new Date();\r\nvar ord = (sameAsBigDay.getTime());\r\nvar pubsMotsCles = \"\";\r\nvar exc;\r\nvar lienhautdepage = \"\";\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\nsas_tmstp=Math.round(Math.random()*10000000000);\r\nfunction SmartAdServer(sas_pageid,sas_formatid,sas_master,sas_target) {\r\n if ((sas_master!=\'M\')&&(sas_master!=\'S\')) {sas_master=\'S\'};\r\n document.write(\'<SCR\'+\'IPT SRC=\"http://www.smartadserver.com/call/pubj/\' + sas_pageid + \'/\' + sas_formatid + \'/\'+sas_master + \'/\' + sas_tmstp + \'/\' + escape(sas_target) + \'?\"></SCR\'+\'IPT>\');\r\n}\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\" SRC=\"http://www.01net.com/js/exc.js\"></SCRIPT>\r\n<script language=\"javascript\" src=\"http://telecharger.01net.com/shopping/js/headservicesV4.js\"></script>\r\n<noscript>\r\n<a href=\"http://cinema.01net.com\">T\351l\351charger des bandes-annonces, des teasers, des extraits et des making of de vos films cin\351ma pr\351f\351r\351s</a>,\r\n<a href=\"http://www.01net.com/BusinessTechnologies/\">Portail leader de l\'information sur les nouvelles technologies - Actualites et enquetes sur l\'informatique et les NTIC (nouvelles technologies de l\'information et la communication). 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style=\"background-image:url(/img/v4/tet_droite-mha.gif);background-position:bottom;background-repeat:repeat-x\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=66 align=left hspace=0 vspace=0></td>\r\n\t</tr>\r\n</table>\r\n<table width=100% cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td valign=top background=\"http://www.01net.com/img/v4/fond_date-mha.gif\" height=18 width=500><img src=\"http://www.01net.com/img/dot.gif\" width=500 height=1><br><img src=\"http://www.01net.com/img/dot.gif\" width=19 height=1><font face=\"Arial\" size=1 color=#666666 style=\"font-size: 11px;\"><b>Derni\350re mise \340 jour de cette page : lundi 8 novembre 2004 | 16:45</b></font></td>\r\n\t\t<td width=100% background=\"http://www.01net.com/img/v4/fond_date2-mha.gif\" height=18></td>\r\n\t</tr>\r\n</table>\r\n<!-- ********** FIN MODELE INTERNE TETES MHA-tetev4 //--> <!-- - ZONE TETE -->\r\n<!-- ***************************************************************************************************************************************************************************************************************************** //-->\r\n<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n<!-- DEBUT PARTIE PUB //-->\r\n\t<tr>\r\n<td align=center valign=middle colspan=2 background=\"http://www.01net.com/img/v4/fond_bann.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br>\r\n<!-- + ZONE Z0 -->\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\">\r\nvar fa = \"\";\r\nvar fab = document.URL.toString();\r\nif (fab.indexOf(\"?fa\") != -1 || fab.indexOf(\"&fa\") != -1)\r\n{\r\nfa = \";!category=fai\";\r\n}\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nsas_pageid=\'167/3872\';\r\nsas_formatid=95;\t\t\t// Format : Banner/Scope 468x60\r\nsas_master=\'M\';\t\t\t// Master : M=master or S=slave\r\nsas_target=exc + \'rubrique\';\t\t\t// Targeting\r\nSmartAdServer(sas_pageid,sas_formatid,sas_master,sas_target);\r\n</SCRIPT>\r\n <!-- - ZONE Z0 --></td>\r\n\t\t<td valign=top width=23 background=\"http://www.01net.com/img/v4/sep_verticale.gif\" ><img src=\"http://www.01net.com/img/dot.gif\" width=23 height=1><br></td>\r\n<td valign=top width=100% bgcolor=\"ffffff\" rowspan=3><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=125><br>\r\n<!-- +ZONE_Dn -->\r\n<!-- + ZONE D0 -->\r\n<!-- DEBUT MA_ColD -->\r\n<div style=\"background-color : #ffffff; width : 150px; padding-left : 5px; padding-right : 5px; font-family : Arial, Helvetica;\">\n\t\t\t\t\t<table style=\"border-spacing : 0; width : 146px; margin-top : 0px;\" cellspacing=\"0\">\n\t\t\t\t\t<tr><th colspan=\"2\" style=\"padding : 0;\"><img src=\"http://micro-achat.01net.com/img/utils/micro-achat/tete-produitsrecherches.gif\" alt=\"\" /></th></tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Imagerie </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/12537-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/imagerie/moniteurs-lcd/l1720b/\">LG L1720B</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">332.89 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4043-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/veriton-7600g/\">Acer Veriton 7600G</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">705 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1903-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sn95g5/\">Shuttle SN95G5</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">375 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1259-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/cartes-meres/a7n8x-e-deluxe/\">Asus A7N8X-E Deluxe</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">91.99 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4687-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/ventilateur/sp-94/\">Thermalright SP-94</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">49 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr></table>\n\t\t\t\t<table style=\"border-spacing : 0px 1px; width : 146px; margin-top : 15px;\" cellspacing=\"0\">\n\t\t\t\t<tr><th colspan=\"2\" style=\"padding : 0;\"><img src=\"http://micro-achat.01net.com/img/utils/micro-achat/tete-revendeurmisajour.gif\" alt=\"\" /></th></tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">1 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Rhone-Alpes/Ain/pc-look\" style=\"color : #000000; text-decoration : none;\">PC Look</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">2 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Nord-Pas-de-Calais/Pas-de-Calais/atelier-informatique\" style=\"color : #000000; text-decoration : none;\">Atelier Informatique</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">3 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Val-de-Marne/zanax-multimedia\" style=\"color : #000000; text-decoration : none;\">Zanax Multim\351dia</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">4 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Hauts-de-Seine/misteroops\" style=\"color : #000000; text-decoration : none;\">MISTEROOPS</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">5 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/168-golden-avenue\" style=\"color : #000000; text-decoration : none;\">168 Golden Avenue</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">6 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-Saint-Denis/microchoix\" style=\"color : #000000; text-decoration : none;\">microchoix</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">7 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/e-soph\" style=\"color : #000000; text-decoration : none;\">e-Soph</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">8 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/13/pc-price-club\" style=\"color : #000000; text-decoration : none;\">PC Price Club</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">9 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-et-Marne/pc-77\" style=\"color : #000000; text-decoration : none;\">PC 77</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">10 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Alsace/Bas-Rhin/web-in-informatique\" style=\"color : #000000; text-decoration : none;\">Web In Informatique</a></td>\n\t\t\t\t</tr></table>\n\t\t\t\t</div>\n\t\t\t\t<br>\r\n<!-- FIN MA_ColD --> <!-- - ZONE D0 -->\r\n<!-- + ZONE D1 -->\r\n<!-- - ZONE D1 -->\r\n<!-- + ZONE D2 -->\r\n<!-- - ZONE D2 -->\r\n<!-- -ZONE_Dn -->\r\n</td>\r\n\t</tr>\r\n<!-- FIN PARTIE PUB //-->\r\n\t<tr>\r\n\t\t<td valign=top width=193 height=100% background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n\t\t<!-- contenu colonne de gauche //-->\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0 background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<!-- +ZONE_Gn -->\r\n<!-- + ZONE G0 -->\r\n<tr><!-- ********** DEBUT MHA_MenusChainesV4 //-->\r\n<td valign=top>\n<table border=0 cellpadding=0 cellspacing=0 width=193 bgcolor=#FFFFFF>\n<tr>\n<td background=\"/img/v4/menus/motifgauche_menus.gif\" width=20 rowspan=2><img src=\"/img/dot.gif\" width=20 height=20></td>\n<td width=173 colspan=2 bgcolor=#FFFFFF><img src=\"/img/dot.gif\" width=173 height=20></td>\n</tr>\n<tr>\n<td valign=top width=159>\n\n<a href=\"http://www.01net.com\"><img src=\"/img/v4/menus/mha/home01net-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com\"><img src=\"/img/v4/menus/mha/home-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4317.html\"><img src=\"/img/v4/menus/mha/ordinateurs-2.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4318.html\"><img src=\"/img/v4/menus/mha/composants-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4319.html\"><img src=\"/img/v4/menus/mha/stockage-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4320.html\"><img src=\"/img/v4/menus/mha/image-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4321.html\"><img src=\"/img/v4/menus/mha/peripheriques-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4322.html\"><img src=\"/img/v4/menus/mha/reseaux-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4323.html\"><img src=\"/img/v4/menus/mha/accessoires-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/guide-produits/\"><img src=\"/img/v4/menus/mha/comparateur-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/annuaire/\"><img src=\"/img/v4/menus/mha/annuaire-1.gif\" width=159 border=0></a><br></td>\n<td width=14><img src=\"/img/dot.gif\" width=14 height=14></td>\n</tr>\n<tr>\n<td colspan=3><img src=\"/img/v4/menus/bas_menus.gif\" width=193 height=31></td>\n</tr>\n</table></td><!-- ********** FIN MHA_MenusChainesV4 //--> </tr><!-- - ZONE G0 -->\r\n<!-- + ZONE G1 -->\r\n<tr><!-- DEBUT MODELE RUBRIQUE V4ColGaucheMHA //-->\r\n<!-- ********** DEBUT BLOC DernieresNewsTC //-->\r\n<td valign=top>\r\n<!-- DEBUT RECHERCHE MHA -->\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top background=\"http://microachat.01net.com/img/v4/fond_rech_mha.gif\" height=98 style=\"background-repeat:no-repeat;\"><form method=\"get\" name=\"chercher\" action=\"http://www.01net.com/aiguillage_recherche/1,6138,,00.html\"><img src=\"http://microachat.01net.com/img/dot.gif\" width=193 height=17><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"text\" name=\"fullText\" style=\"width:130px;font:12px;\"><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=6><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><select name=\"sousArbo\" style=\"width:130px;font:12px;\">\r\n\t\t\t<option value=\"mha\">dans Micro Achat\r\n\t\t\t<option value=\"cmp\">les prix\r\n\t\t\t<option value=\"ann\">les revendeurs\r\n\t\t\t<option value=\"2641\">tout 01net.\r\n\t\t\t<option value=\"emploi\">les offres d\'emploi\r\n\t\t\t<option value=\"telecharger\"> telecharger.com\r\n\t\t\t<option value=\"web\">le web\r\n\t\t\t</select><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://microachat.01net.com/img/v4/ok_bloc_recher_mha.gif\" border=\"0\"></form>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10 vspace=0>\r\n<!-- FIN RECHERCHE MHA -->\r\n <!-- modele TCFilColgTitV4 //-->\r\n <table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/ban/Ban_v4_DernieresNews01net.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/256059.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">CD et DVD bient\364t insensibles aux rayures<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255796.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">OpenOffice gagne son service<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255731.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">La messagerie en cinq minutes selon Ipswitch<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top colspan=2><A HREF=\"http://www.01net.com/actus/\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\">> toutes les news<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/crochet_bleuhaut_155.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20> <!-- ********** FIN BLOC DernieresNewsTC //-->\r\n<!-- ********** DEBUT BLOC NL_MHA //-->\r\n<SCRIPT language=\"javascript\" src=\"http://www.01net.com/js/lib.js\"></SCRIPT>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"formgen\" method=\"get\" action=\"http://microachat.01net.com/outils/newsletter_MicroAchat.html\" onSubmit=\"return validateForm(this)\">\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/ban/Ban_V4_Newslett.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=153>\r\n\t\t<table width=153 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefinefd_ffffff.gif\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Recevez chaque jour l\'actualit\351 des produits et des promos<br></font>\r\n\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"email\" size=\"14\" style=\"width:130px;font:12px;\" value=\"entrez votre e-mail\" onFocus=\"javascript:document.formgen.email.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://www.01net.com/img/v4/ok_bloc_recher.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/v4/base_newsletters.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n<SCRIPT language=\"Javascript\">\r\ndocument.formgen.email.validator= \'notNullEmailPat\';\r\ndocument.formgen.email.nomvalidator= \'E-mail\';\r\n</SCRIPT>\r\n<!-- ********** FIN BLOC NL_MHA //-->\r\n</td>\r\n</tr>\r\n<tr>\r\n<!-- ********** DEBUT BLOC Actus ActusUneV4 //-->\r\n<td valign=top background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/ban/Ban_v4_LaUne.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/entreprise/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Entreprise</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://www.01net.com/article/255737.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Quand le billet papier s\'envole vers la d\351mat\351rialisation</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255737.html\"><img src=\"http://www.01net.com/img/MEA_v4/billet_virtuel-65.jpg\" border=0></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/pratique/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Trucs et astuces</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255698.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">D\351pannez Windows XP</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255698.html\"><img src=\"http://www.01net.com/img/MEA_v4/depannez_XP-65.jpg\" border=0 ></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t</tr>\r\n\t\t <tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/conso/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Conso</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255524.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Vos photos sur papier imprimante ou labo ?<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t<!-- exemple de lien avec pseudorub pour produits et tests -->\r\n\t\t<!-- <a href=\"/outils/PseudoRub.php?base=test-comp&rub=1730&pseudo=test-comp20041005\"> -->\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/produits/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Produits & Tests</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255782.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">5 programmes d\222encodage vid\351o gratuits<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n</td>\r\n<!-- ********** FIN BLOC Actus ActusUneV4 //--> </tr>\r\n<tr>\r\n<td>\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top><a href=\"mailto:s.cohen@micro-achat.fr\"><img border=0 src=\"http://www.01net.com/img/v4/espace-revendeurs.gif\"></td>\r\n\t</tr>\r\n</table>\r\n<br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20></td>\r\n<!-- FIN MODELE RUBRIQUE V4ColGaucheMHA //--> </tr><!-- - ZONE G1 -->\r\n<!-- + ZONE G2 -->\r\n<!-- - ZONE G2 -->\r\n<!-- + ZONE G3 -->\r\n<!-- - ZONE G3 -->\r\n<!-- + ZONE G4 -->\r\n<!-- - ZONE G4 -->\r\n<!-- + ZONE G5 -->\r\n<!-- - ZONE G5 -->\r\n<!-- + ZONE G6 -->\r\n<!-- - ZONE G6 -->\r\n<!-- + ZONE G7 -->\r\n<!-- - ZONE G7 -->\r\n<!-- + ZONE G8 -->\r\n<!-- - ZONE G8 -->\r\n<!-- + ZONE G9 -->\r\n<!-- - ZONE G9 -->\r\n<!-- + ZONE GA -->\r\n<!-- - ZONE GA -->\r\n<!-- + ZONE GB -->\r\n<!-- - ZONE GB -->\r\n<!-- + ZONE GC -->\r\n<!-- - ZONE GC -->\r\n<!-- + ZONE GD -->\r\n<!-- - ZONE GD -->\r\n<!-- + ZONE GE -->\r\n<!-- - ZONE GE -->\r\n<!-- + ZONE GF -->\r\n<!-- - ZONE GF -->\r\n<!-- -ZONE_Gn -->\r\n\t\t</table>\r\n\t\t<!-- fin contenu colonne de gauche //-->\r\n\t\t</td>\r\n<!-- ***************************************************************** DEBUT VENTRE*********************************************************************************************************************************************** //-->\r\n<!-- DEBUT WORK -->\r\n\t\t<td valign=top width=625 bgcolor=#ffffff><img src=\"http://www.01net.com/img/dot.gif\" width=625 height=1><br>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_hn -->\r\n<!-- + ZONE h0 -->\r\n<!-- MA_ban_int -->\r\n<td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=\"18\"><br>\r\n<!-- pour ordipda -->\r\n<table width=\"625\" cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"/img/v4/MA/Ban_MA_ordis.gif\"></td>\r\n\t</tr>\r\n</table>\r\n\t</td>\r\n<!-- /MA_ban_int --> <!-- - ZONE h0 -->\r\n<!-- + ZONE h1 -->\r\n<!-- - ZONE h1 -->\r\n<!-- + ZONE h2 -->\r\n<!-- - ZONE h2 -->\r\n<!-- -ZONE_hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Hn -->\r\n<!-- + ZONE H0 -->\r\n<!-- Ma_int_Leader -->\r\n <td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=320>\r\n<tr>\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Un nouvel ultra portable r\351alis\351 par Nec</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67509.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Le Versa S940 a un format r\351duit, mais ses performances sont \340 la hauteur.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1663 \200</font>\r\n</td>\r\n<td width=17 background=\"/img/v4/MA/v4-fond-sep-mea-leader.gif\"><img src=\"/img/dot.gif\" width=17 height=1></td>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Asus pr\351sente trois petits nouveaux dans la gamme A3N</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67168.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Ces trois portables Centrino int\350grent, entre autres, une webcam et un contr\364leur Wi-Fi.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1346 \200</font>\r\n</td>\r\n<td width=15><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t\t</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_int_Leader --> <!-- - ZONE H0 -->\r\n<!-- + ZONE H1 -->\r\n<!-- - ZONE H1 -->\r\n<!-- + ZONE H2 -->\r\n<!-- MA_BP_MP -->\r\n<td valign=\"top\" width=\"100%\">\r\n\t<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\r\n\t<tr>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_BonPlan -->\r\n<td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=1 cellspacing=0 width=145 bgcolor=#CC0000>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">BON PLAN</a></font></td>\r\n</tr>\r\n<tr>\r\n<td width=145>\r\n<div style=\"padding:5px;padding-left:5px;padding-fight:5px;margin:0px;margin-left:1px;margin-right:1px;background-color:#FFFFFF;\">\r\n<img src=\"/img/microachat/logo_shuttle_SB83G5.gif\" border=0><br>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:12px;\">Les derni\350res technologies INTEL dans un nouveau design pour ce shuttle haut de gamme, pour un prix abordable.<br></font>\r\n<center><a href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sb83g5/?fabriquant=1&page=1&tri=titre\"><img src=\"/img/microachat/mea_shuttle_SB83G5.gif\" border=0 vspace=5></a><br></center>\r\n<center>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:13px;\"><b>\340 partir de</b><br>\r\n<div style=\"border:solid 2px #CC0000;width:100px;background-color:#FFCC00;\"><b>415 \200</b></div>\r\n</center>\r\n</div>\r\n</td>\r\n</tr>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">publicit\351</a></font></td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_BonPlan --> \t</td>\r\n\t<td width=\"15\"><img src=\"/img/dot.gif\" width=\"15\"></td>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_MeillPrixAct //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=145 height=1><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=18><br>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"prix\" action=\"http://www.micro-achat.01net.com/guide-produits/recherche.php\" method=\"post\">\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/ban/Ban_v4_MeillPrix_MA.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=143>\r\n\t\t<table width=143 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=6><img src=\"http://www.01net.com/img/dot.gif\" width=6 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img src=\"http://www.01net.com/img/ban/Ban_MA_trouv_ordi.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Desktops</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/portables/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Portables</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Mini-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/pda---tablets-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Pda / Tablets-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/apple/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Apple</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/gps/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">GPS</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20><br>\r\n\t\t\t\t\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"width:130px;font:12px;\" value=\" recherche directe\" onFocus=\"javascript:document.prix.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/v4/MA/base_meillPrix.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_MeillPrixAct //--> \t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n<!-- /MA_BP_MP --> <!-- - ZONE H2 -->\r\n<!-- -ZONE_Hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Tn -->\r\n<!-- + ZONE T0 -->\r\n <td valign=\"top\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n<tr>\r\n<td width=305><img src=\"http://www.01net.com/img/ban/Ban_v4_DernNews_MA.gif\"><br><img src=\"http://www.01net.com/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n</tr>\r\n<tr>\r\n<td bgcolor=\"#FEF9E0\">\r\n\t<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255149.html\" style=\"color:#000000;text-decoration:none;\">Toshiba consacre deux gammes de machines au multim\351dia</a></b><br>\r\n\t<font color=\"#000000\">Equipement haut de gamme et Windows Media Center sont au menu de ces portables \340 vocation multim\351dia.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Ordinateur <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254686.html\" style=\"color:#000000;text-decoration:none;\">Arriv\351e d\'un Power Mac G5 d\'entr\351e de gamme</a></b><br>\r\n\t<font color=\"#000000\">La firme \340 la pomme propose une station de travail \351volutive et relativement abordable.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>PC <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254549.html\" style=\"color:#000000;text-decoration:none;\">Alienware propose deux machines au look \351trange</a></b><br>\r\n\t<font color=\"#000000\">Aurora et Area 51 sont deux gammes d\'ordinateurs enti\350rement configurables.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254501.html\" style=\"color:#000000;text-decoration:none;\">Trois nouveaux iBook G4 chez Apple</a></b><br>\r\n\t<font color=\"#000000\">Chez Apple, les portables gagnent en vitesse et communiquent sans fil en standard.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t\t<tr>\r\n\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td align=\"right\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4365.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les news</font></a>\r\n\t\t\t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n</td> <!-- - ZONE T0 -->\r\n<!-- + ZONE T1 -->\r\n<!-- Ma_derpromo -->\r\n <td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=13><br>\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td bgcolor=\"#ffffff\"><img src=\"/img/v4/MA/v4-lespromos-mha.gif\"><br><img src=\"/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n</tr>\r\n</table>\r\n<!-- DEBUT MODELE D\'AFFICHAGE POUR LES n PREMIERS ARTICLES //-->\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255806.html\" class=\"nodeco\"><img src=\"/images/67462.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255806.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Asus A3N15-C Pro</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable autonome et puissant gr\342ce \340 la technologie Intel Centrino.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1170 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255688.html\" class=\"nodeco\"><img src=\"/images/67381.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255688.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Soltek EQ3702A Miroir</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Ce mini PC est une solution int\351ressante pour les utilisateurs poss\351dant d\351j\340 un \351cran.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>559 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255513.html\" class=\"nodeco\"><img src=\"/images/67319.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255513.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>IBM ThinkPad R51</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable complet et pourtant relativement l\351ger.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1299 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t\t<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n</tr>\r\n<tr>\r\n<td background=\"/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"/img/dot.gif\" height=1></td>\r\n</tr>\r\n<tr>\r\n<td align=\"right\" valign=\"top\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4366.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les promos</font></a>\r\n\t\t</td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_derpromo --> <!-- - ZONE T1 -->\r\n<!-- + ZONE T2 -->\r\n<!-- - ZONE T2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE T3 -->\r\n<!-- DEBUT MicroAchat MA_PubG -->\r\n<td valign=top align=center>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45590/[timestamp]?\" target=_blank><img src=\"/img/microachat/Bandeau_FX6021.jpg\" border=0></a></td>\r\n\t\t<td><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubG --> <!-- - ZONE T3 -->\r\n<!-- + ZONE T4 -->\r\n<!-- DEBUT MicroAchat MA_PubD -->\r\n<td valign=top align=center>\r\n<table border=0 width=305 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45591/[timestamp]?\" target=_blank><img src=\"/img/microachat/twc_305x125.jpg\" border=0></a></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubD --> <!-- - ZONE T4 -->\r\n<!-- + ZONE T5 -->\r\n<!-- - ZONE T5 -->\r\n<!-- -ZONE_Tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n<!-- +ZONE_gn -->\r\n<!-- + ZONE g0 -->\r\n<!-- - ZONE g0 -->\r\n<!-- + ZONE g1 -->\r\n<!-- - ZONE g1 -->\r\n<!-- + ZONE g2 -->\r\n<!-- - ZONE g2 -->\r\n<!-- + ZONE g3 -->\r\n<!-- - ZONE g3 -->\r\n<!-- + ZONE g4 -->\r\n<!-- - ZONE g4 -->\r\n<!-- + ZONE g5 -->\r\n<!-- - ZONE g5 -->\r\n<!-- + ZONE g6 -->\r\n<!-- - ZONE g6 -->\r\n<!-- + ZONE g7 -->\r\n<!-- - ZONE g7 -->\r\n<!-- + ZONE g8 -->\r\n<!-- - ZONE g8 -->\r\n<!-- + ZONE g9 -->\r\n<!-- - ZONE g9 -->\r\n<!-- -ZONE_gn -->\r\n\t\t\t</table>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t\t\t<tr>\r\n<!-- +ZONE_Mn -->\r\n<!-- + ZONE M0 -->\r\n<!-- modele Ma_GuideAch //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_GuideAchat_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<center>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67088.jpg.res_121-111.jpg\" border=0 hspace=0 vspace=0></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n</center>\r\n<div style=\"padding:5px;\">\r\n<a href=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\"><b>Les graveurs de DVD</b><br></font></a>\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Quel graveur choisir ? Quel type de format ? Quelle vitesse ? Double couche ou simple couche ? Voici tout ce qu\'il faut savoir pour faire le bon choix.</font></div>\r\n\t\t\t\t\t\t</div>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M0 -->\r\n<!-- + ZONE M1 -->\r\n<!-- modele Ma_DirectLab //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_DirectLab_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255744.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Kodak EasyShare Printer Dock Plus :</b>\r\n\t\t\t\t\t\tvos photos 10 x 15 cm en 60 secondes</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255780.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>3DMark05 :</b>\r\n\t\t\t\t\t\tun labo 3D \340 domicile</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255691.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>DVDInfoPro 2.6</b>\r\n\t\t\t\t\t\treconna\356t CD et DVD</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255722.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Scaleo PA D3008, de Fujitsu-Siemens :</b>\r\n\t\t\t\t\t\tune impression d\'inachev\351</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255514.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Carbon 5 Go : 2 500 chansons dans le creux de la main</font></a></div>\r\n\t\t\t</div></td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M1 -->\r\n<!-- + ZONE M2 -->\r\n<!-- DEBUT MicroAchat MA_AnnTelec -->\r\n<td valign=top>\r\n<script type=\"text/javascript\">\r\nfunction regionChange()\r\n{\r\ndocument.selection.departement.options.length=0;\r\nswitch(document.selection.region.value)\r\n\t{\r\n\t\tcase \"aucun\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Nord-Pas-de-Calais\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pas-de-Calais\", \"Pas-de-Calais\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nord\", \"Nord\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Haute-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure\", \"Eure\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Maritime\", \"Seine-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Basse-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Manche\", \"Manche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Calvados\", \"Calvados\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Orne\", \"Orne\");\r\n\t\tbreak;\r\n\t\tcase \"Picardie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Somme\", \"Somme\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Oise\", \"Oise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aisne\", \"Aisne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bretagne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Finistere\", \"Finistere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cotes-dArmor\", \"Cotes-dArmor\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Morbihan\", \"Morbihan\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ille-et-Vilaine\", \"Ille-et-Vilaine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Pays-de-Loire\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire-Atlantique\", \"Loire-Atlantique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vendee\", \"Vendee\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Maine-et-Loire\", \"Maine-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayenne\", \"Mayenne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Sarthe\", \"Sarthe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Centre\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure-et-Loir\", \"Eure-et-Loir\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loiret\", \"Loiret\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loir-et-Cher\", \"Loir-et-Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre-et-Loire\", \"Indre-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre\", \"Indre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cher\", \"Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Ile-de-France\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-dOise\", \"Val-dOise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yvelines\", \"Yvelines\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Essonne\", \"Essonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-et-Marne\", \"Seine-et-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hauts-de-Seine\", \"Hauts-de-Seine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Saint-Denis\", \"Seine-Saint-Denis\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-de-Marne\", \"Val-de-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Paris\", \"Paris\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Champagnes-Ardennes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardennes\", \"Ardennes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Marne\", \"Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aube\", \"Aube\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Marne\", \"Haute-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Lorraine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vosges\", \"Vosges\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meurthe-et-Moselle\", \"Meurthe-et-Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meuse\", \"Meuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Moselle\", \"Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Alsace\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bas-Rhin\", \"Bas-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haut-Rhin\", \"Haut-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Franche-Compte\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Jura\", \"Jura\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Doubs\", \"Doubs\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Saone\", \"Haute-Saone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Territoire-de-Belfort\", \"Territoire-de-Belfort\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bourgogne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yonne\", \"Yonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nievre\", \"Nievre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cote-dOr\", \"Cote-dOr\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Saone-et-Loire\", \"Saone-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Poitou-Charentes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Deux-Sevres\", \"Deux-Sevres\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente-Maritime\", \"Charente-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente\", \"Charente\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vienne\", \"Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Limousin\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Vienne\", \"Haute-Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Correze\", \"Correze\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Creuse\", \"Creuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Auvergne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Allier\", \"Allier\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Puy-de-Dome\", \"Puy-de-Dome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cantal\", \"Cantal\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Loire\", \"Haute-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Rhone-Alpes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire\", \"Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Rhone\", \"Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ain\", \"Ain\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardeche\", \"Ardeche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Drome\", \"Drome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Isere\", \"Isere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Savoie\", \"Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Savoie\", \"Haute-Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Aquitaine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gironde\", \"Gironde\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Landes\", \"Landes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Atlantiques\", \"Pyrenees-Atlantiques\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot-et-Garonne\", \"Lot-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Dordogne\", \"Dordogne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Midi-Pyrenees\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot\", \"Lot\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn-et-Garonne\", \"Tarn-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gers\", \"Gers\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Pyrenees\", \"Hautes-Pyrenees\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Garonne\", \"Haute-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ariege\", \"Ariege\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn\", \"Tarn\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aveyron\", \"Aveyron\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Languedoc-Roussillon\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Orientales\", \"Pyrenees-Orientales\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aude\", \"Aude\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Herault\", \"Herault\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gard\", \"Gard\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lozere\", \"Lozere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Provence-Alpes-Cote-dazur\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bouches-du-Rhone\", \"Bouches-du-Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vaucluse\", \"Vaucluse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-de-haute-Provence\", \"Alpes-de-haute-Provence\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Alpes\", \"Hautes-Alpes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Var\", \"Var\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-Maritimes\", \"Alpes-Maritimes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Corse\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Corse-du-Sud\", \"Corse-du-Sud\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Corse\", \"Haute-Corse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"DomTom\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guadeloupe\", \"Guadeloupe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guyane\", \"Guyane\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"La-Reunion\", \"La-Reunion\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Martinique\", \"Martinique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayotte\", \"Mayotte\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"St-Pierre-et-Miquelon\", \"St-Pierre-et-Miquelon\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t}\r\n}\r\nfunction deptChange()\r\n{\r\nif (document.selection.departement.value == \'Paris\')\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'inline\';\r\nelse\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'none\';\r\n}\r\n</script>\r\n<table width=305 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td valign=top>\r\n\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_AnnuaiRev_MA.gif\" vspace=1></td>\r\n\t\t\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr><form action=\"http://micro-achat.01net.com/annuaire/recherche.php\" method=\"post\" name=\"selection\">\r\n\t\t\t\t<td bgcolor=#FFFFDD>\r\n\t\t\t\t<div style=\"border:solid 1px #FFCC00;width:100%\"><div style=\"padding:2px;\"><img src=\"http://www.01net.com/img/v4/MA/carte_revend.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Choisir une r\351gion</b><br></font>\r\n<select name=\"region\" onChange=\"regionChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n<option value=\"Nord-Pas-de-Calais\">Nord-Pas-de-Calais</option>\r\n<option value=\"Haute-Normandie\">Haute-Normandie</option>\r\n<option value=\"Basse-Normandie\">Basse-Normandie</option>\r\n<option value=\"Picardie\">Picardie</option>\r\n<option value=\"Bretagne\">Bretagne</option>\r\n<option value=\"Pays-de-Loire\">Pays-de-Loire</option>\r\n<option value=\"Centre\">Centre</option>\r\n<option value=\"Ile-de-France\">Ile-de-France</option>\r\n<option value=\"Champagnes-Ardennes\">Champagne ardennes</option>\r\n<option value=\"Lorraine\">Lorraine</option>\r\n<option value=\"Alsace\">Alsace</option>\r\n<option value=\"Franche-Compte\">Franche-Compte</option>\r\n<option value=\"Bourgogne\">Bourgogne</option>\r\n<option value=\"Poitou-Charentes\">Poitou-Charentes</option>\r\n<option value=\"Limousin\">Limousin</option>\r\n<option value=\"Auvergne\">Auvergne</option>\r\n<option value=\"Rhone-Alpes\">Rhone-Alpes</option>\r\n<option value=\"Aquitaine\">Aquitaine</option>\r\n<option value=\"Midi-Pyrenees\">Midi-Pyrenees</option>\r\n<option value=\"Languedoc-Roussillon\">Languedoc roussillon</option>\r\n<option value=\"Provence-Alpes-Cote-dazur\">PACA</option>\r\n<option value=\"Corse\">Corse</option>\r\n<option value=\"DomTom\">DomTom</option>\r\n</select>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un d\351partement</b><br></font>\r\n<select name=\"departement\" onChange=\"deptChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n</select>\r\n<div id=\"arrondissement\" style=\"display : none;\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un arrondissement</b><br></font>\r\n<select name=\"arrondissement\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"0\">-------------</option>\r\n<option value=\"1\">I</option>\r\n<option value=\"2\">II</option>\r\n<option value=\"3\">III</option>\r\n<option value=\"4\">IV</option>\r\n<option value=\"5\">V</option>\r\n<option value=\"6\">VI</option>\r\n<option value=\"7\">VII</option>\r\n<option value=\"8\">VIII</option>\r\n<option value=\"9\">IX</option>\r\n<option value=\"10\">X</option>\r\n<option value=\"11\">XI</option>\r\n<option value=\"12\">XII</option>\r\n<option value=\"13\">XIII</option>\r\n<option value=\"14\">XIV</option>\r\n<option value=\"15\">XV</option>\r\n<option value=\"16\">XVI</option>\r\n<option value=\"17\">XVII</option>\r\n<option value=\"18\">XVIII</option>\r\n<option value=\"19\">XIX</option>\r\n<option value=\"20\">XX</option>\r\n</select>\r\n</div>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche directe</b><br></font>\r\n\t\t\t\t<font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\"><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>rechercher une ville<br><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>et/ou une boutique<br></font>\r\n\t\t\t\t<input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;width:130px;\" value=\"\" onFocus=\"javascript:document.selection.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=3><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1> <input type=\"image\" src=\"http://www.01net.com/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\">\r\n\t\t\t\t<table height=23 width=135 cellspacing=0 cellpadding=0 border=0 bgcolor=#FFEE77>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td bgcolor=#FFEE77 valign=middle align=center><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://micro-achat.01net.com/annuaire/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche avanc\351e</b></font></a></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t</div>\r\n\t\t\t\t</div>\r\n\t\t\t\t</td>\r\n\t\t\t</tr></form>\r\n\t\t</table>\r\n\t\t</td>\r\n<!-- DEBUT MicroAchat MA_Telecharg //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/v4/MA/Ban_v4_MA_telec.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"#DFECF6\">\r\n\t\t\t<tr>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"></td>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Bureautique\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Bureautique</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Traducteur, organiseur...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Multimedia\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Multim\351dia</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Photo, audio, vid\351o...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Utilitaire\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Utilitaires</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Antivirus, pilotes, gravure...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Personnaliser\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Personnaliser son PC</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Ecrans de veille, th\350mes...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Programmation\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>D\351veloppement</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Cr\351ation de logiciels, BDD...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Jeux\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Jeux</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Action, simulation...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Internet\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Internet</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Utilitaires, email, FTP...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Loisirs\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Loisirs</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Humour, culture...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_Telecharg //--> \t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_AnnTelec --> <!-- - ZONE M2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE M3 -->\r\n<!-- - ZONE M3 -->\r\n<!-- + ZONE M4 -->\r\n<!-- - ZONE M4 -->\r\n<!-- + ZONE M5 -->\r\n<!-- - ZONE M5 -->\r\n<!-- -ZONE_Mn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t<tr>\r\n<!-- +ZONE_tn -->\r\n<!-- + ZONE t0 -->\r\n<!-- - ZONE t0 -->\r\n<!-- + ZONE t1 -->\r\n<!-- - ZONE t1 -->\r\n<!-- + ZONE t2 -->\r\n<!-- - ZONE t2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE t3 -->\r\n<!-- - ZONE t3 -->\r\n<!-- + ZONE t4 -->\r\n<!-- - ZONE t4 -->\r\n<!-- + ZONE t5 -->\r\n<!-- - ZONE t5 -->\r\n<!-- -ZONE_tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td valign=top>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t<tr>\r\n<!-- +ZONE_dn -->\r\n<!-- + ZONE d0 -->\r\n<!-- - ZONE d0 -->\r\n<!-- + ZONE d1 -->\r\n<!-- - ZONE d1 -->\r\n<!-- + ZONE d2 -->\r\n<!-- - ZONE d2 -->\r\n<!-- + ZONE d3 -->\r\n<!-- - ZONE d3 -->\r\n<!-- + ZONE d4 -->\r\n<!-- - ZONE d4 -->\r\n<!-- + ZONE d5 -->\r\n<!-- - ZONE d5 -->\r\n<!-- + ZONE d6 -->\r\n<!-- - ZONE d6 -->\r\n<!-- + ZONE d7 -->\r\n<!-- - ZONE d7 -->\r\n<!-- + ZONE d8 -->\r\n<!-- - ZONE d8 -->\r\n<!-- + ZONE d9 -->\r\n<!-- - ZONE d9 -->\r\n<!-- -ZONE_dn -->\r\n\t\t\t\t</tr>\r\n\t\t\t</table>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t</table>\r\n<!-- FIN WORK -->\r\n\t\t</td>\r\n<!-- *********************************************************************FIN VENTRE********************************************************************************************************************************************** //-->\r\n\t\t<td rowspan=2 valign=top width=23 background=\"http://www.01net.com/img/v4/sep_verticale.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=23 height=1><br></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t\t<td colspan=2>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=100%>\r\n<!-- +ZONE_Bn -->\r\n<!-- + ZONE B0 -->\r\n<!-- - ZONE B0 -->\r\n<!-- + ZONE B1 -->\r\n<tr><!-- ********** DEBUT BLOC Home NosJournauxV4 //-->\r\n<td valign=top bgcolor=#FFFFFF>\r\n<img src=\"http://www.01net.com/img/ban/Ban_v4_jx.gif\"><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1>\r\n<a href=\"http://www.01net.com/rubrique/3339.html\"><img src=\"http://www.01net.com/img/journaux/01I-small.gif\" border=0 vspace=0 hspace=12 align=top></a>\r\n<a href=\"http://www.01net.com/rubrique/4051.html\"><img src=\"http://www.01net.com/img/journaux/DSI-small.gif\" border=0 vspace=0 hspace=12 align=top></a>\r\n<a href=\"http://www.01net.com/rubrique/3345.html\"><img src=\"http://www.01net.com/img/journaux/DIN-small.gif content: @ 1099872000000000: 'HTTP/1.1 200 OK\r\nX-Google-Crawl-Date: Mon, 08 Nov 2004 17:22:09 GMT\r\nContent-Type: text/html\r\nConnection: close\r\nX-Powered-By: PHP/4.3.8\r\nServer: Apache/1.3.31 (Unix) mod_gzip/1.3.19.1a PHP/4.3.8\r\nDate: Mon, 08 Nov 2004 17:19:07 GMT\r\n\r\n <!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" 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href=\"http://telephone_portable.telecharger.01net.com/mobile/\">t\351l\351phone portable</a>,\r\n<a href=\"http://telephone_mobile.telecharger.01net.com/mobile/\">t\351l\351phone mobile</a>\r\n</noscript>\r\n</head>\r\n</head>\r\n<body bgcolor=\"#FFFFFF\" text=\"#000000\" link=\"#000000\" marginwidth=0 marginheight=0 topmargin=0 leftmargin=0>\r\n<!-- + ZONE TETE -->\r\n<!-- ********** DEBUT MODELE INTERNE TETES MHA-tetev4 //-->\r\n<table width=100% height=66 cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td height=8 colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=8></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td valign=bottom><a href=\"http://microachat.01net.com\"><img src=\"http://www.01net.com/img/v4/logos_tete/tet_gauche-mha.gif\" border=0></a></td>\r\n\t\t<td valign=bottom bgcolor=#FFFFFF bbackground=\"http://www.01net.com/img/v4/tet_droite.gif\" width=100% style=\"background-image:url(/img/v4/tet_droite-mha.gif);background-position:bottom;background-repeat:repeat-x\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=66 align=left hspace=0 vspace=0></td>\r\n\t</tr>\r\n</table>\r\n<table width=100% cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td valign=top background=\"http://www.01net.com/img/v4/fond_date-mha.gif\" height=18 width=500><img src=\"http://www.01net.com/img/dot.gif\" width=500 height=1><br><img src=\"http://www.01net.com/img/dot.gif\" width=19 height=1><font face=\"Arial\" size=1 color=#666666 style=\"font-size: 11px;\"><b>Derni\350re mise \340 jour de cette page : lundi 8 novembre 2004 | 16:45</b></font></td>\r\n\t\t<td width=100% background=\"http://www.01net.com/img/v4/fond_date2-mha.gif\" height=18></td>\r\n\t</tr>\r\n</table>\r\n<!-- ********** FIN MODELE INTERNE TETES MHA-tetev4 //--> <!-- - ZONE TETE -->\r\n<!-- ***************************************************************************************************************************************************************************************************************************** //-->\r\n<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n<!-- DEBUT PARTIE PUB //-->\r\n\t<tr>\r\n<td align=center valign=middle colspan=2 background=\"http://www.01net.com/img/v4/fond_bann.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br>\r\n<!-- + ZONE Z0 -->\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\">\r\nvar fa = \"\";\r\nvar fab = document.URL.toString();\r\nif (fab.indexOf(\"?fa\") != -1 || fab.indexOf(\"&fa\") != -1)\r\n{\r\nfa = \";!category=fai\";\r\n}\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nsas_pageid=\'167/3872\';\r\nsas_formatid=95;\t\t\t// Format : Banner/Scope 468x60\r\nsas_master=\'M\';\t\t\t// Master : M=master or S=slave\r\nsas_target=exc + 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background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Imagerie </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/12537-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/imagerie/moniteurs-lcd/l1720b/\">LG L1720B</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">332.89 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4043-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/veriton-7600g/\">Acer Veriton 7600G</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">705 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1903-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sn95g5/\">Shuttle SN95G5</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">375 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1259-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/cartes-meres/a7n8x-e-deluxe/\">Asus A7N8X-E Deluxe</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">91.99 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4687-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/ventilateur/sp-94/\">Thermalright SP-94</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">49 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr></table>\n\t\t\t\t<table style=\"border-spacing : 0px 1px; width : 146px; margin-top : 15px;\" cellspacing=\"0\">\n\t\t\t\t<tr><th colspan=\"2\" style=\"padding : 0;\"><img src=\"http://micro-achat.01net.com/img/utils/micro-achat/tete-revendeurmisajour.gif\" alt=\"\" /></th></tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">1 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Rhone-Alpes/Ain/pc-look\" style=\"color : #000000; text-decoration : none;\">PC Look</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">2 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Nord-Pas-de-Calais/Pas-de-Calais/atelier-informatique\" style=\"color : #000000; text-decoration : none;\">Atelier Informatique</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">3 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Val-de-Marne/zanax-multimedia\" style=\"color : #000000; text-decoration : none;\">Zanax Multim\351dia</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">4 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Hauts-de-Seine/misteroops\" style=\"color : #000000; text-decoration : none;\">MISTEROOPS</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">5 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/168-golden-avenue\" style=\"color : #000000; text-decoration : none;\">168 Golden Avenue</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">6 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-Saint-Denis/microchoix\" style=\"color : #000000; text-decoration : none;\">microchoix</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">7 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/e-soph\" style=\"color : #000000; text-decoration : none;\">e-Soph</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">8 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/13/pc-price-club\" style=\"color : #000000; text-decoration : none;\">PC Price Club</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">9 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-et-Marne/pc-77\" style=\"color : #000000; text-decoration : none;\">PC 77</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">10 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Alsace/Bas-Rhin/web-in-informatique\" style=\"color : #000000; text-decoration : none;\">Web In Informatique</a></td>\n\t\t\t\t</tr></table>\n\t\t\t\t</div>\n\t\t\t\t<br>\r\n<!-- FIN MA_ColD --> <!-- - ZONE D0 -->\r\n<!-- + ZONE D1 -->\r\n<!-- - ZONE D1 -->\r\n<!-- + ZONE D2 -->\r\n<!-- - ZONE D2 -->\r\n<!-- -ZONE_Dn -->\r\n</td>\r\n\t</tr>\r\n<!-- FIN PARTIE PUB //-->\r\n\t<tr>\r\n\t\t<td valign=top width=193 height=100% background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n\t\t<!-- contenu colonne de gauche //-->\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0 background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<!-- +ZONE_Gn -->\r\n<!-- + ZONE G0 -->\r\n<tr><!-- ********** DEBUT MHA_MenusChainesV4 //-->\r\n<td valign=top>\n<table border=0 cellpadding=0 cellspacing=0 width=193 bgcolor=#FFFFFF>\n<tr>\n<td background=\"/img/v4/menus/motifgauche_menus.gif\" width=20 rowspan=2><img src=\"/img/dot.gif\" width=20 height=20></td>\n<td width=173 colspan=2 bgcolor=#FFFFFF><img src=\"/img/dot.gif\" width=173 height=20></td>\n</tr>\n<tr>\n<td valign=top width=159>\n\n<a href=\"http://www.01net.com\"><img src=\"/img/v4/menus/mha/home01net-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com\"><img src=\"/img/v4/menus/mha/home-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4317.html\"><img src=\"/img/v4/menus/mha/ordinateurs-2.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4318.html\"><img src=\"/img/v4/menus/mha/composants-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4319.html\"><img src=\"/img/v4/menus/mha/stockage-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4320.html\"><img src=\"/img/v4/menus/mha/image-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4321.html\"><img src=\"/img/v4/menus/mha/peripheriques-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4322.html\"><img src=\"/img/v4/menus/mha/reseaux-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4323.html\"><img src=\"/img/v4/menus/mha/accessoires-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/guide-produits/\"><img src=\"/img/v4/menus/mha/comparateur-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/annuaire/\"><img src=\"/img/v4/menus/mha/annuaire-1.gif\" width=159 border=0></a><br></td>\n<td width=14><img src=\"/img/dot.gif\" width=14 height=14></td>\n</tr>\n<tr>\n<td colspan=3><img src=\"/img/v4/menus/bas_menus.gif\" width=193 height=31></td>\n</tr>\n</table></td><!-- ********** FIN MHA_MenusChainesV4 //--> </tr><!-- - ZONE G0 -->\r\n<!-- + ZONE G1 -->\r\n<tr><!-- DEBUT MODELE RUBRIQUE V4ColGaucheMHA //-->\r\n<!-- ********** DEBUT BLOC DernieresNewsTC //-->\r\n<td valign=top>\r\n<!-- DEBUT RECHERCHE MHA -->\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top background=\"http://microachat.01net.com/img/v4/fond_rech_mha.gif\" height=98 style=\"background-repeat:no-repeat;\"><form method=\"get\" name=\"chercher\" action=\"http://www.01net.com/aiguillage_recherche/1,6138,,00.html\"><img src=\"http://microachat.01net.com/img/dot.gif\" width=193 height=17><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"text\" name=\"fullText\" style=\"width:130px;font:12px;\"><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=6><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><select name=\"sousArbo\" style=\"width:130px;font:12px;\">\r\n\t\t\t<option value=\"mha\">dans Micro Achat\r\n\t\t\t<option value=\"cmp\">les prix\r\n\t\t\t<option value=\"ann\">les revendeurs\r\n\t\t\t<option value=\"2641\">tout 01net.\r\n\t\t\t<option value=\"emploi\">les offres d\'emploi\r\n\t\t\t<option value=\"telecharger\"> telecharger.com\r\n\t\t\t<option value=\"web\">le web\r\n\t\t\t</select><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://microachat.01net.com/img/v4/ok_bloc_recher_mha.gif\" border=\"0\"></form>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10 vspace=0>\r\n<!-- FIN RECHERCHE MHA -->\r\n <!-- modele TCFilColgTitV4 //-->\r\n <table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/ban/Ban_v4_DernieresNews01net.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/256059.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">CD et DVD bient\364t insensibles aux rayures<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255796.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">OpenOffice gagne son service<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255731.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">La messagerie en cinq minutes selon Ipswitch<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top colspan=2><A HREF=\"http://www.01net.com/actus/\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\">> toutes les news<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/crochet_bleuhaut_155.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20> <!-- ********** FIN BLOC DernieresNewsTC //-->\r\n<!-- ********** DEBUT BLOC NL_MHA //-->\r\n<SCRIPT language=\"javascript\" src=\"http://www.01net.com/js/lib.js\"></SCRIPT>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"formgen\" method=\"get\" action=\"http://microachat.01net.com/outils/newsletter_MicroAchat.html\" onSubmit=\"return validateForm(this)\">\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/ban/Ban_V4_Newslett.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=153>\r\n\t\t<table width=153 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefinefd_ffffff.gif\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Recevez chaque jour l\'actualit\351 des produits et des promos<br></font>\r\n\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"email\" size=\"14\" style=\"width:130px;font:12px;\" value=\"entrez votre e-mail\" onFocus=\"javascript:document.formgen.email.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://www.01net.com/img/v4/ok_bloc_recher.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/v4/base_newsletters.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n<SCRIPT language=\"Javascript\">\r\ndocument.formgen.email.validator= \'notNullEmailPat\';\r\ndocument.formgen.email.nomvalidator= \'E-mail\';\r\n</SCRIPT>\r\n<!-- ********** FIN BLOC NL_MHA //-->\r\n</td>\r\n</tr>\r\n<tr>\r\n<!-- ********** DEBUT BLOC Actus ActusUneV4 //-->\r\n<td valign=top background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/ban/Ban_v4_LaUne.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/entreprise/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Entreprise</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://www.01net.com/article/255737.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Quand le billet papier s\'envole vers la d\351mat\351rialisation</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255737.html\"><img src=\"http://www.01net.com/img/MEA_v4/billet_virtuel-65.jpg\" border=0></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/pratique/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Trucs et astuces</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255698.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">D\351pannez Windows XP</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255698.html\"><img src=\"http://www.01net.com/img/MEA_v4/depannez_XP-65.jpg\" border=0 ></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t</tr>\r\n\t\t <tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/conso/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Conso</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255524.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Vos photos sur papier imprimante ou labo ?<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t<!-- exemple de lien avec pseudorub pour produits et tests -->\r\n\t\t<!-- <a href=\"/outils/PseudoRub.php?base=test-comp&rub=1730&pseudo=test-comp20041005\"> -->\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/produits/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Produits & Tests</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255782.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">5 programmes d\222encodage vid\351o gratuits<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n</td>\r\n<!-- ********** FIN BLOC Actus ActusUneV4 //--> </tr>\r\n<tr>\r\n<td>\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top><a href=\"mailto:s.cohen@micro-achat.fr\"><img border=0 src=\"http://www.01net.com/img/v4/espace-revendeurs.gif\"></td>\r\n\t</tr>\r\n</table>\r\n<br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20></td>\r\n<!-- FIN MODELE RUBRIQUE V4ColGaucheMHA //--> </tr><!-- - ZONE G1 -->\r\n<!-- + ZONE G2 -->\r\n<!-- - ZONE G2 -->\r\n<!-- + ZONE G3 -->\r\n<!-- - ZONE G3 -->\r\n<!-- + ZONE G4 -->\r\n<!-- - ZONE G4 -->\r\n<!-- + ZONE G5 -->\r\n<!-- - ZONE G5 -->\r\n<!-- + ZONE G6 -->\r\n<!-- - ZONE G6 -->\r\n<!-- + ZONE G7 -->\r\n<!-- - ZONE G7 -->\r\n<!-- + ZONE G8 -->\r\n<!-- - ZONE G8 -->\r\n<!-- + ZONE G9 -->\r\n<!-- - ZONE G9 -->\r\n<!-- + ZONE GA -->\r\n<!-- - ZONE GA -->\r\n<!-- + ZONE GB -->\r\n<!-- - ZONE GB -->\r\n<!-- + ZONE GC -->\r\n<!-- - ZONE GC -->\r\n<!-- + ZONE GD -->\r\n<!-- - ZONE GD -->\r\n<!-- + ZONE GE -->\r\n<!-- - ZONE GE -->\r\n<!-- + ZONE GF -->\r\n<!-- - ZONE GF -->\r\n<!-- -ZONE_Gn -->\r\n\t\t</table>\r\n\t\t<!-- fin contenu colonne de gauche //-->\r\n\t\t</td>\r\n<!-- ***************************************************************** DEBUT VENTRE*********************************************************************************************************************************************** //-->\r\n<!-- DEBUT WORK -->\r\n\t\t<td valign=top width=625 bgcolor=#ffffff><img src=\"http://www.01net.com/img/dot.gif\" width=625 height=1><br>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_hn -->\r\n<!-- + ZONE h0 -->\r\n<!-- MA_ban_int -->\r\n<td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=\"18\"><br>\r\n<!-- pour ordipda -->\r\n<table width=\"625\" cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"/img/v4/MA/Ban_MA_ordis.gif\"></td>\r\n\t</tr>\r\n</table>\r\n\t</td>\r\n<!-- /MA_ban_int --> <!-- - ZONE h0 -->\r\n<!-- + ZONE h1 -->\r\n<!-- - ZONE h1 -->\r\n<!-- + ZONE h2 -->\r\n<!-- - ZONE h2 -->\r\n<!-- -ZONE_hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Hn -->\r\n<!-- + ZONE H0 -->\r\n<!-- Ma_int_Leader -->\r\n <td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=320>\r\n<tr>\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Un nouvel ultra portable r\351alis\351 par Nec</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67509.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Le Versa S940 a un format r\351duit, mais ses performances sont \340 la hauteur.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1663 \200</font>\r\n</td>\r\n<td width=17 background=\"/img/v4/MA/v4-fond-sep-mea-leader.gif\"><img src=\"/img/dot.gif\" width=17 height=1></td>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Asus pr\351sente trois petits nouveaux dans la gamme A3N</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67168.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Ces trois portables Centrino int\350grent, entre autres, une webcam et un contr\364leur Wi-Fi.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1346 \200</font>\r\n</td>\r\n<td width=15><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t\t</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_int_Leader --> <!-- - ZONE H0 -->\r\n<!-- + ZONE H1 -->\r\n<!-- - ZONE H1 -->\r\n<!-- + ZONE H2 -->\r\n<!-- MA_BP_MP -->\r\n<td valign=\"top\" width=\"100%\">\r\n\t<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\r\n\t<tr>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_BonPlan -->\r\n<td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=1 cellspacing=0 width=145 bgcolor=#CC0000>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">BON PLAN</a></font></td>\r\n</tr>\r\n<tr>\r\n<td width=145>\r\n<div style=\"padding:5px;padding-left:5px;padding-fight:5px;margin:0px;margin-left:1px;margin-right:1px;background-color:#FFFFFF;\">\r\n<img src=\"/img/microachat/logo_shuttle_SB83G5.gif\" border=0><br>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:12px;\">Les derni\350res technologies INTEL dans un nouveau design pour ce shuttle haut de gamme, pour un prix abordable.<br></font>\r\n<center><a href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sb83g5/?fabriquant=1&page=1&tri=titre\"><img src=\"/img/microachat/mea_shuttle_SB83G5.gif\" border=0 vspace=5></a><br></center>\r\n<center>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:13px;\"><b>\340 partir de</b><br>\r\n<div style=\"border:solid 2px #CC0000;width:100px;background-color:#FFCC00;\"><b>415 \200</b></div>\r\n</center>\r\n</div>\r\n</td>\r\n</tr>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">publicit\351</a></font></td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_BonPlan --> \t</td>\r\n\t<td width=\"15\"><img src=\"/img/dot.gif\" width=\"15\"></td>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_MeillPrixAct //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=145 height=1><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=18><br>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"prix\" action=\"http://www.micro-achat.01net.com/guide-produits/recherche.php\" method=\"post\">\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/ban/Ban_v4_MeillPrix_MA.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=143>\r\n\t\t<table width=143 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=6><img src=\"http://www.01net.com/img/dot.gif\" width=6 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img src=\"http://www.01net.com/img/ban/Ban_MA_trouv_ordi.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Desktops</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/portables/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Portables</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Mini-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/pda---tablets-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Pda / Tablets-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/apple/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Apple</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/gps/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">GPS</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20><br>\r\n\t\t\t\t\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"width:130px;font:12px;\" value=\" recherche directe\" onFocus=\"javascript:document.prix.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/v4/MA/base_meillPrix.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_MeillPrixAct //--> \t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n<!-- /MA_BP_MP --> <!-- - ZONE H2 -->\r\n<!-- -ZONE_Hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Tn -->\r\n<!-- + ZONE T0 -->\r\n <td valign=\"top\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n<tr>\r\n<td width=305><img src=\"http://www.01net.com/img/ban/Ban_v4_DernNews_MA.gif\"><br><img src=\"http://www.01net.com/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n</tr>\r\n<tr>\r\n<td bgcolor=\"#FEF9E0\">\r\n\t<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255149.html\" style=\"color:#000000;text-decoration:none;\">Toshiba consacre deux gammes de machines au multim\351dia</a></b><br>\r\n\t<font color=\"#000000\">Equipement haut de gamme et Windows Media Center sont au menu de ces portables \340 vocation multim\351dia.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Ordinateur <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254686.html\" style=\"color:#000000;text-decoration:none;\">Arriv\351e d\'un Power Mac G5 d\'entr\351e de gamme</a></b><br>\r\n\t<font color=\"#000000\">La firme \340 la pomme propose une station de travail \351volutive et relativement abordable.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>PC <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254549.html\" style=\"color:#000000;text-decoration:none;\">Alienware propose deux machines au look \351trange</a></b><br>\r\n\t<font color=\"#000000\">Aurora et Area 51 sont deux gammes d\'ordinateurs enti\350rement configurables.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254501.html\" style=\"color:#000000;text-decoration:none;\">Trois nouveaux iBook G4 chez Apple</a></b><br>\r\n\t<font color=\"#000000\">Chez Apple, les portables gagnent en vitesse et communiquent sans fil en standard.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t\t<tr>\r\n\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td align=\"right\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4365.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les news</font></a>\r\n\t\t\t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n</td> <!-- - ZONE T0 -->\r\n<!-- + ZONE T1 -->\r\n<!-- Ma_derpromo -->\r\n <td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=13><br>\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td bgcolor=\"#ffffff\"><img src=\"/img/v4/MA/v4-lespromos-mha.gif\"><br><img src=\"/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n</tr>\r\n</table>\r\n<!-- DEBUT MODELE D\'AFFICHAGE POUR LES n PREMIERS ARTICLES //-->\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255806.html\" class=\"nodeco\"><img src=\"/images/67462.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255806.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Asus A3N15-C Pro</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable autonome et puissant gr\342ce \340 la technologie Intel Centrino.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1170 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255688.html\" class=\"nodeco\"><img src=\"/images/67381.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255688.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Soltek EQ3702A Miroir</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Ce mini PC est une solution int\351ressante pour les utilisateurs poss\351dant d\351j\340 un \351cran.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>559 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255513.html\" class=\"nodeco\"><img src=\"/images/67319.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255513.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>IBM ThinkPad R51</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable complet et pourtant relativement l\351ger.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1299 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t\t<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n</tr>\r\n<tr>\r\n<td background=\"/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"/img/dot.gif\" height=1></td>\r\n</tr>\r\n<tr>\r\n<td align=\"right\" valign=\"top\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4366.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les promos</font></a>\r\n\t\t</td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_derpromo --> <!-- - ZONE T1 -->\r\n<!-- + ZONE T2 -->\r\n<!-- - ZONE T2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE T3 -->\r\n<!-- DEBUT MicroAchat MA_PubG -->\r\n<td valign=top align=center>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45590/[timestamp]?\" target=_blank><img src=\"/img/microachat/Bandeau_FX6021.jpg\" border=0></a></td>\r\n\t\t<td><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubG --> <!-- - ZONE T3 -->\r\n<!-- + ZONE T4 -->\r\n<!-- DEBUT MicroAchat MA_PubD -->\r\n<td valign=top align=center>\r\n<table border=0 width=305 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45591/[timestamp]?\" target=_blank><img src=\"/img/microachat/twc_305x125.jpg\" border=0></a></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubD --> <!-- - ZONE T4 -->\r\n<!-- + ZONE T5 -->\r\n<!-- - ZONE T5 -->\r\n<!-- -ZONE_Tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n<!-- +ZONE_gn -->\r\n<!-- + ZONE g0 -->\r\n<!-- - ZONE g0 -->\r\n<!-- + ZONE g1 -->\r\n<!-- - ZONE g1 -->\r\n<!-- + ZONE g2 -->\r\n<!-- - ZONE g2 -->\r\n<!-- + ZONE g3 -->\r\n<!-- - ZONE g3 -->\r\n<!-- + ZONE g4 -->\r\n<!-- - ZONE g4 -->\r\n<!-- + ZONE g5 -->\r\n<!-- - ZONE g5 -->\r\n<!-- + ZONE g6 -->\r\n<!-- - ZONE g6 -->\r\n<!-- + ZONE g7 -->\r\n<!-- - ZONE g7 -->\r\n<!-- + ZONE g8 -->\r\n<!-- - ZONE g8 -->\r\n<!-- + ZONE g9 -->\r\n<!-- - ZONE g9 -->\r\n<!-- -ZONE_gn -->\r\n\t\t\t</table>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t\t\t<tr>\r\n<!-- +ZONE_Mn -->\r\n<!-- + ZONE M0 -->\r\n<!-- modele Ma_GuideAch //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_GuideAchat_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<center>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67088.jpg.res_121-111.jpg\" border=0 hspace=0 vspace=0></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n</center>\r\n<div style=\"padding:5px;\">\r\n<a href=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\"><b>Les graveurs de DVD</b><br></font></a>\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Quel graveur choisir ? Quel type de format ? Quelle vitesse ? Double couche ou simple couche ? Voici tout ce qu\'il faut savoir pour faire le bon choix.</font></div>\r\n\t\t\t\t\t\t</div>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M0 -->\r\n<!-- + ZONE M1 -->\r\n<!-- modele Ma_DirectLab //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_DirectLab_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255744.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Kodak EasyShare Printer Dock Plus :</b>\r\n\t\t\t\t\t\tvos photos 10 x 15 cm en 60 secondes</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255780.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>3DMark05 :</b>\r\n\t\t\t\t\t\tun labo 3D \340 domicile</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255691.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>DVDInfoPro 2.6</b>\r\n\t\t\t\t\t\treconna\356t CD et DVD</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255722.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Scaleo PA D3008, de Fujitsu-Siemens :</b>\r\n\t\t\t\t\t\tune impression d\'inachev\351</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255514.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Carbon 5 Go : 2 500 chansons dans le creux de la main</font></a></div>\r\n\t\t\t</div></td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M1 -->\r\n<!-- + ZONE M2 -->\r\n<!-- DEBUT MicroAchat MA_AnnTelec -->\r\n<td valign=top>\r\n<script type=\"text/javascript\">\r\nfunction regionChange()\r\n{\r\ndocument.selection.departement.options.length=0;\r\nswitch(document.selection.region.value)\r\n\t{\r\n\t\tcase \"aucun\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Nord-Pas-de-Calais\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pas-de-Calais\", \"Pas-de-Calais\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nord\", \"Nord\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Haute-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure\", \"Eure\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Maritime\", \"Seine-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Basse-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Manche\", \"Manche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Calvados\", \"Calvados\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Orne\", \"Orne\");\r\n\t\tbreak;\r\n\t\tcase \"Picardie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Somme\", \"Somme\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Oise\", \"Oise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aisne\", \"Aisne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bretagne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Finistere\", \"Finistere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cotes-dArmor\", \"Cotes-dArmor\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Morbihan\", \"Morbihan\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ille-et-Vilaine\", \"Ille-et-Vilaine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Pays-de-Loire\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire-Atlantique\", \"Loire-Atlantique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vendee\", \"Vendee\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Maine-et-Loire\", \"Maine-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayenne\", \"Mayenne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Sarthe\", \"Sarthe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Centre\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure-et-Loir\", \"Eure-et-Loir\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loiret\", \"Loiret\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loir-et-Cher\", \"Loir-et-Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre-et-Loire\", \"Indre-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre\", \"Indre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cher\", \"Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Ile-de-France\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-dOise\", \"Val-dOise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yvelines\", \"Yvelines\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Essonne\", \"Essonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-et-Marne\", \"Seine-et-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hauts-de-Seine\", \"Hauts-de-Seine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Saint-Denis\", \"Seine-Saint-Denis\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-de-Marne\", \"Val-de-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Paris\", \"Paris\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Champagnes-Ardennes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardennes\", \"Ardennes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Marne\", \"Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aube\", \"Aube\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Marne\", \"Haute-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Lorraine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vosges\", \"Vosges\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meurthe-et-Moselle\", \"Meurthe-et-Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meuse\", \"Meuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Moselle\", \"Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Alsace\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bas-Rhin\", \"Bas-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haut-Rhin\", \"Haut-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Franche-Compte\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Jura\", \"Jura\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Doubs\", \"Doubs\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Saone\", \"Haute-Saone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Territoire-de-Belfort\", \"Territoire-de-Belfort\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bourgogne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yonne\", \"Yonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nievre\", \"Nievre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cote-dOr\", \"Cote-dOr\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Saone-et-Loire\", \"Saone-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Poitou-Charentes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Deux-Sevres\", \"Deux-Sevres\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente-Maritime\", \"Charente-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente\", \"Charente\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vienne\", \"Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Limousin\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Vienne\", \"Haute-Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Correze\", \"Correze\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Creuse\", \"Creuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Auvergne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Allier\", \"Allier\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Puy-de-Dome\", \"Puy-de-Dome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cantal\", \"Cantal\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Loire\", \"Haute-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Rhone-Alpes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire\", \"Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Rhone\", \"Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ain\", \"Ain\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardeche\", \"Ardeche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Drome\", \"Drome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Isere\", \"Isere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Savoie\", \"Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Savoie\", \"Haute-Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Aquitaine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gironde\", \"Gironde\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Landes\", \"Landes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Atlantiques\", \"Pyrenees-Atlantiques\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot-et-Garonne\", \"Lot-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Dordogne\", \"Dordogne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Midi-Pyrenees\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot\", \"Lot\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn-et-Garonne\", \"Tarn-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gers\", \"Gers\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Pyrenees\", \"Hautes-Pyrenees\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Garonne\", \"Haute-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ariege\", \"Ariege\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn\", \"Tarn\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aveyron\", \"Aveyron\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Languedoc-Roussillon\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Orientales\", \"Pyrenees-Orientales\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aude\", \"Aude\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Herault\", \"Herault\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gard\", \"Gard\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lozere\", \"Lozere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Provence-Alpes-Cote-dazur\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bouches-du-Rhone\", \"Bouches-du-Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vaucluse\", \"Vaucluse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-de-haute-Provence\", \"Alpes-de-haute-Provence\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Alpes\", \"Hautes-Alpes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Var\", \"Var\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-Maritimes\", \"Alpes-Maritimes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Corse\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Corse-du-Sud\", \"Corse-du-Sud\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Corse\", \"Haute-Corse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"DomTom\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guadeloupe\", \"Guadeloupe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guyane\", \"Guyane\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"La-Reunion\", \"La-Reunion\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Martinique\", \"Martinique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayotte\", \"Mayotte\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"St-Pierre-et-Miquelon\", \"St-Pierre-et-Miquelon\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t}\r\n}\r\nfunction deptChange()\r\n{\r\nif (document.selection.departement.value == \'Paris\')\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'inline\';\r\nelse\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'none\';\r\n}\r\n</script>\r\n<table width=305 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td valign=top>\r\n\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_AnnuaiRev_MA.gif\" vspace=1></td>\r\n\t\t\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr><form action=\"http://micro-achat.01net.com/annuaire/recherche.php\" method=\"post\" name=\"selection\">\r\n\t\t\t\t<td bgcolor=#FFFFDD>\r\n\t\t\t\t<div style=\"border:solid 1px #FFCC00;width:100%\"><div style=\"padding:2px;\"><img src=\"http://www.01net.com/img/v4/MA/carte_revend.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Choisir une r\351gion</b><br></font>\r\n<select name=\"region\" onChange=\"regionChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n<option value=\"Nord-Pas-de-Calais\">Nord-Pas-de-Calais</option>\r\n<option value=\"Haute-Normandie\">Haute-Normandie</option>\r\n<option value=\"Basse-Normandie\">Basse-Normandie</option>\r\n<option value=\"Picardie\">Picardie</option>\r\n<option value=\"Bretagne\">Bretagne</option>\r\n<option value=\"Pays-de-Loire\">Pays-de-Loire</option>\r\n<option value=\"Centre\">Centre</option>\r\n<option value=\"Ile-de-France\">Ile-de-France</option>\r\n<option value=\"Champagnes-Ardennes\">Champagne ardennes</option>\r\n<option value=\"Lorraine\">Lorraine</option>\r\n<option value=\"Alsace\">Alsace</option>\r\n<option value=\"Franche-Compte\">Franche-Compte</option>\r\n<option value=\"Bourgogne\">Bourgogne</option>\r\n<option value=\"Poitou-Charentes\">Poitou-Charentes</option>\r\n<option value=\"Limousin\">Limousin</option>\r\n<option value=\"Auvergne\">Auvergne</option>\r\n<option value=\"Rhone-Alpes\">Rhone-Alpes</option>\r\n<option value=\"Aquitaine\">Aquitaine</option>\r\n<option value=\"Midi-Pyrenees\">Midi-Pyrenees</option>\r\n<option value=\"Languedoc-Roussillon\">Languedoc roussillon</option>\r\n<option value=\"Provence-Alpes-Cote-dazur\">PACA</option>\r\n<option value=\"Corse\">Corse</option>\r\n<option value=\"DomTom\">DomTom</option>\r\n</select>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un d\351partement</b><br></font>\r\n<select name=\"departement\" onChange=\"deptChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n</select>\r\n<div id=\"arrondissement\" style=\"display : none;\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un arrondissement</b><br></font>\r\n<select name=\"arrondissement\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"0\">-------------</option>\r\n<option value=\"1\">I</option>\r\n<option value=\"2\">II</option>\r\n<option value=\"3\">III</option>\r\n<option value=\"4\">IV</option>\r\n<option value=\"5\">V</option>\r\n<option value=\"6\">VI</option>\r\n<option value=\"7\">VII</option>\r\n<option value=\"8\">VIII</option>\r\n<option value=\"9\">IX</option>\r\n<option value=\"10\">X</option>\r\n<option value=\"11\">XI</option>\r\n<option value=\"12\">XII</option>\r\n<option value=\"13\">XIII</option>\r\n<option value=\"14\">XIV</option>\r\n<option value=\"15\">XV</option>\r\n<option value=\"16\">XVI</option>\r\n<option value=\"17\">XVII</option>\r\n<option value=\"18\">XVIII</option>\r\n<option value=\"19\">XIX</option>\r\n<option value=\"20\">XX</option>\r\n</select>\r\n</div>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche directe</b><br></font>\r\n\t\t\t\t<font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\"><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>rechercher une ville<br><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>et/ou une boutique<br></font>\r\n\t\t\t\t<input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;width:130px;\" value=\"\" onFocus=\"javascript:document.selection.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=3><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1> <input type=\"image\" src=\"http://www.01net.com/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\">\r\n\t\t\t\t<table height=23 width=135 cellspacing=0 cellpadding=0 border=0 bgcolor=#FFEE77>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td bgcolor=#FFEE77 valign=middle align=center><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://micro-achat.01net.com/annuaire/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche avanc\351e</b></font></a></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t</div>\r\n\t\t\t\t</div>\r\n\t\t\t\t</td>\r\n\t\t\t</tr></form>\r\n\t\t</table>\r\n\t\t</td>\r\n<!-- DEBUT MicroAchat MA_Telecharg //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/v4/MA/Ban_v4_MA_telec.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"#DFECF6\">\r\n\t\t\t<tr>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"></td>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Bureautique\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Bureautique</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Traducteur, organiseur...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Multimedia\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Multim\351dia</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Photo, audio, vid\351o...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Utilitaire\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Utilitaires</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Antivirus, pilotes, gravure...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Personnaliser\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Personnaliser son PC</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Ecrans de veille, th\350mes...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Programmation\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>D\351veloppement</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Cr\351ation de logiciels, BDD...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Jeux\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Jeux</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Action, simulation...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Internet\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Internet</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Utilitaires, email, FTP...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Loisirs\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Loisirs</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Humour, culture...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_Telecharg //--> \t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_AnnTelec --> <!-- - ZONE M2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE M3 -->\r\n<!-- - ZONE M3 -->\r\n<!-- + ZONE M4 -->\r\n<!-- - ZONE M4 -->\r\n<!-- + ZONE M5 -->\r\n<!-- - ZONE M5 -->\r\n<!-- -ZONE_Mn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t<tr>\r\n<!-- +ZONE_tn -->\r\n<!-- + ZONE t0 -->\r\n<!-- - ZONE t0 -->\r\n<!-- + ZONE t1 -->\r\n<!-- - ZONE t1 -->\r\n<!-- + ZONE t2 -->\r\n<!-- - ZONE t2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE t3 -->\r\n<!-- - ZONE t3 -->\r\n<!-- + ZONE t4 -->\r\n<!-- - ZONE t4 -->\r\n<!-- + ZONE t5 -->\r\n<!-- - ZONE t5 -->\r\n<!-- -ZONE_tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td valign=top>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t<tr>\r\n<!-- +ZONE_dn -->\r\n<!-- + ZONE d0 -->\r\n<!-- - ZONE d0 -->\r\n<!-- + ZONE d1 -->\r\n<!-- - ZONE d1 -->\r\n<!-- + ZONE d2 -->\r\n<!-- - ZONE d2 -->\r\n<!-- + ZONE d3 -->\r\n<!-- - ZONE d3 -->\r\n<!-- + ZONE d4 -->\r\n<!-- - ZONE d4 -->\r\n<!-- + ZONE d5 -->\r\n<!-- - ZONE d5 -->\r\n<!-- + ZONE d6 -->\r\n<!-- - ZONE d6 -->\r\n<!-- + ZONE d7 -->\r\n<!-- - ZONE d7 -->\r\n<!-- + ZONE d8 -->\r\n<!-- - ZONE d8 -->\r\n<!-- + ZONE d9 -->\r\n<!-- - ZONE d9 -->\r\n<!-- -ZONE_dn -->\r\n\t\t\t\t</tr>\r\n\t\t\t</table>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t</table>\r\n<!-- FIN WORK -->\r\n\t\t</td>\r\n<!-- *********************************************************************FIN VENTRE********************************************************************************************************************************************** //-->\r\n\t\t<td rowspan=2 valign=top width=23 background=\"http://www.01net.com/img/v4/sep_verticale.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=23 height=1><br></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t\t<td colspan=2>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=100%>\r\n<!-- +ZONE_Bn -->\r\n<!-- + ZONE B0 -->\r\n<!-- - ZONE B0 -->\r\n<!-- + ZONE B1 -->\r\n<tr><!-- ********** DEBUT BLOC Home NosJournauxV4 //-->\r\n<td valign=top bgcolor=#FFFFFF>\r\n<img src=\"http://www.01net.com/img/ban/Ban_v4_jx.gif\"><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1>\r\n<a href=\"http://www.01net.com/rubrique/3339.html\"><img src=\"http://www.01net.com/img/journaux/01I-small.gif\" border=0 vspace=0 hspace=12 align=top></a>\r\n<a href=\"http://www.01net.com/rubrique/4051.html\"><img src=\"http://www.01net.com/img/journaux/DSI-small.gif\" border=0 vspace=0 hspace=12 align=top></a>\r\n<a href=\"http://www.01net.com/rubrique/3345.html\"><img src=\"http://www.01net.com/img/journaux/DIN-small.gif content: @ 1099872000000000: 'HTTP/1.1 200 OK\r\nX-Google-Crawl-Date: Mon, 08 Nov 2004 17:22:09 GMT\r\nContent-Type: text/html\r\nConnection: close\r\nX-Powered-By: PHP/4.3.8\r\nServer: Apache/1.3.31 (Unix) mod_gzip/1.3.19.1a PHP/4.3.8\r\nDate: Mon, 08 Nov 2004 17:19:07 GMT\r\n\r\n <!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" 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href=\"http://telephone_portable.telecharger.01net.com/mobile/\">t\351l\351phone portable</a>,\r\n<a href=\"http://telephone_mobile.telecharger.01net.com/mobile/\">t\351l\351phone mobile</a>\r\n</noscript>\r\n</head>\r\n</head>\r\n<body bgcolor=\"#FFFFFF\" text=\"#000000\" link=\"#000000\" marginwidth=0 marginheight=0 topmargin=0 leftmargin=0>\r\n<!-- + ZONE TETE -->\r\n<!-- ********** DEBUT MODELE INTERNE TETES MHA-tetev4 //-->\r\n<table width=100% height=66 cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td height=8 colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=8></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td valign=bottom><a href=\"http://microachat.01net.com\"><img src=\"http://www.01net.com/img/v4/logos_tete/tet_gauche-mha.gif\" border=0></a></td>\r\n\t\t<td valign=bottom bgcolor=#FFFFFF bbackground=\"http://www.01net.com/img/v4/tet_droite.gif\" width=100% style=\"background-image:url(/img/v4/tet_droite-mha.gif);background-position:bottom;background-repeat:repeat-x\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=66 align=left hspace=0 vspace=0></td>\r\n\t</tr>\r\n</table>\r\n<table width=100% cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td valign=top background=\"http://www.01net.com/img/v4/fond_date-mha.gif\" height=18 width=500><img src=\"http://www.01net.com/img/dot.gif\" width=500 height=1><br><img src=\"http://www.01net.com/img/dot.gif\" width=19 height=1><font face=\"Arial\" size=1 color=#666666 style=\"font-size: 11px;\"><b>Derni\350re mise \340 jour de cette page : lundi 8 novembre 2004 | 16:45</b></font></td>\r\n\t\t<td width=100% background=\"http://www.01net.com/img/v4/fond_date2-mha.gif\" height=18></td>\r\n\t</tr>\r\n</table>\r\n<!-- ********** FIN MODELE INTERNE TETES MHA-tetev4 //--> <!-- - ZONE TETE -->\r\n<!-- ***************************************************************************************************************************************************************************************************************************** //-->\r\n<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n<!-- DEBUT PARTIE PUB //-->\r\n\t<tr>\r\n<td align=center valign=middle colspan=2 background=\"http://www.01net.com/img/v4/fond_bann.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br>\r\n<!-- + ZONE Z0 -->\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\">\r\nvar fa = \"\";\r\nvar fab = document.URL.toString();\r\nif (fab.indexOf(\"?fa\") != -1 || fab.indexOf(\"&fa\") != -1)\r\n{\r\nfa = \";!category=fai\";\r\n}\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nsas_pageid=\'167/3872\';\r\nsas_formatid=95;\t\t\t// Format : Banner/Scope 468x60\r\nsas_master=\'M\';\t\t\t// Master : M=master or S=slave\r\nsas_target=exc + 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background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Imagerie </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/12537-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/imagerie/moniteurs-lcd/l1720b/\">LG L1720B</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">332.89 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4043-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/veriton-7600g/\">Acer Veriton 7600G</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">705 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1903-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sn95g5/\">Shuttle SN95G5</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">375 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1259-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/cartes-meres/a7n8x-e-deluxe/\">Asus A7N8X-E Deluxe</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">91.99 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4687-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/ventilateur/sp-94/\">Thermalright SP-94</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">49 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr></table>\n\t\t\t\t<table style=\"border-spacing : 0px 1px; width : 146px; margin-top : 15px;\" cellspacing=\"0\">\n\t\t\t\t<tr><th colspan=\"2\" style=\"padding : 0;\"><img src=\"http://micro-achat.01net.com/img/utils/micro-achat/tete-revendeurmisajour.gif\" alt=\"\" /></th></tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">1 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Rhone-Alpes/Ain/pc-look\" style=\"color : #000000; text-decoration : none;\">PC Look</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">2 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Nord-Pas-de-Calais/Pas-de-Calais/atelier-informatique\" style=\"color : #000000; text-decoration : none;\">Atelier Informatique</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">3 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Val-de-Marne/zanax-multimedia\" style=\"color : #000000; text-decoration : none;\">Zanax Multim\351dia</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">4 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Hauts-de-Seine/misteroops\" style=\"color : #000000; text-decoration : none;\">MISTEROOPS</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">5 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/168-golden-avenue\" style=\"color : #000000; text-decoration : none;\">168 Golden Avenue</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">6 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-Saint-Denis/microchoix\" style=\"color : #000000; text-decoration : none;\">microchoix</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">7 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/e-soph\" style=\"color : #000000; text-decoration : none;\">e-Soph</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">8 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/13/pc-price-club\" style=\"color : #000000; text-decoration : none;\">PC Price Club</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">9 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-et-Marne/pc-77\" style=\"color : #000000; text-decoration : none;\">PC 77</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">10 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Alsace/Bas-Rhin/web-in-informatique\" style=\"color : #000000; text-decoration : none;\">Web In Informatique</a></td>\n\t\t\t\t</tr></table>\n\t\t\t\t</div>\n\t\t\t\t<br>\r\n<!-- FIN MA_ColD --> <!-- - ZONE D0 -->\r\n<!-- + ZONE D1 -->\r\n<!-- - ZONE D1 -->\r\n<!-- + ZONE D2 -->\r\n<!-- - ZONE D2 -->\r\n<!-- -ZONE_Dn -->\r\n</td>\r\n\t</tr>\r\n<!-- FIN PARTIE PUB //-->\r\n\t<tr>\r\n\t\t<td valign=top width=193 height=100% background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n\t\t<!-- contenu colonne de gauche //-->\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0 background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<!-- +ZONE_Gn -->\r\n<!-- + ZONE G0 -->\r\n<tr><!-- ********** DEBUT MHA_MenusChainesV4 //-->\r\n<td valign=top>\n<table border=0 cellpadding=0 cellspacing=0 width=193 bgcolor=#FFFFFF>\n<tr>\n<td background=\"/img/v4/menus/motifgauche_menus.gif\" width=20 rowspan=2><img src=\"/img/dot.gif\" width=20 height=20></td>\n<td width=173 colspan=2 bgcolor=#FFFFFF><img src=\"/img/dot.gif\" width=173 height=20></td>\n</tr>\n<tr>\n<td valign=top width=159>\n\n<a href=\"http://www.01net.com\"><img src=\"/img/v4/menus/mha/home01net-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com\"><img src=\"/img/v4/menus/mha/home-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4317.html\"><img src=\"/img/v4/menus/mha/ordinateurs-2.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4318.html\"><img src=\"/img/v4/menus/mha/composants-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4319.html\"><img src=\"/img/v4/menus/mha/stockage-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4320.html\"><img src=\"/img/v4/menus/mha/image-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4321.html\"><img src=\"/img/v4/menus/mha/peripheriques-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4322.html\"><img src=\"/img/v4/menus/mha/reseaux-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4323.html\"><img src=\"/img/v4/menus/mha/accessoires-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/guide-produits/\"><img src=\"/img/v4/menus/mha/comparateur-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/annuaire/\"><img src=\"/img/v4/menus/mha/annuaire-1.gif\" width=159 border=0></a><br></td>\n<td width=14><img src=\"/img/dot.gif\" width=14 height=14></td>\n</tr>\n<tr>\n<td colspan=3><img src=\"/img/v4/menus/bas_menus.gif\" width=193 height=31></td>\n</tr>\n</table></td><!-- ********** FIN MHA_MenusChainesV4 //--> </tr><!-- - ZONE G0 -->\r\n<!-- + ZONE G1 -->\r\n<tr><!-- DEBUT MODELE RUBRIQUE V4ColGaucheMHA //-->\r\n<!-- ********** DEBUT BLOC DernieresNewsTC //-->\r\n<td valign=top>\r\n<!-- DEBUT RECHERCHE MHA -->\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top background=\"http://microachat.01net.com/img/v4/fond_rech_mha.gif\" height=98 style=\"background-repeat:no-repeat;\"><form method=\"get\" name=\"chercher\" action=\"http://www.01net.com/aiguillage_recherche/1,6138,,00.html\"><img src=\"http://microachat.01net.com/img/dot.gif\" width=193 height=17><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"text\" name=\"fullText\" style=\"width:130px;font:12px;\"><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=6><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><select name=\"sousArbo\" style=\"width:130px;font:12px;\">\r\n\t\t\t<option value=\"mha\">dans Micro Achat\r\n\t\t\t<option value=\"cmp\">les prix\r\n\t\t\t<option value=\"ann\">les revendeurs\r\n\t\t\t<option value=\"2641\">tout 01net.\r\n\t\t\t<option value=\"emploi\">les offres d\'emploi\r\n\t\t\t<option value=\"telecharger\"> telecharger.com\r\n\t\t\t<option value=\"web\">le web\r\n\t\t\t</select><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://microachat.01net.com/img/v4/ok_bloc_recher_mha.gif\" border=\"0\"></form>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10 vspace=0>\r\n<!-- FIN RECHERCHE MHA -->\r\n <!-- modele TCFilColgTitV4 //-->\r\n <table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/ban/Ban_v4_DernieresNews01net.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/256059.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">CD et DVD bient\364t insensibles aux rayures<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255796.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">OpenOffice gagne son service<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255731.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">La messagerie en cinq minutes selon Ipswitch<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top colspan=2><A HREF=\"http://www.01net.com/actus/\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\">> toutes les news<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/crochet_bleuhaut_155.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20> <!-- ********** FIN BLOC DernieresNewsTC //-->\r\n<!-- ********** DEBUT BLOC NL_MHA //-->\r\n<SCRIPT language=\"javascript\" src=\"http://www.01net.com/js/lib.js\"></SCRIPT>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"formgen\" method=\"get\" action=\"http://microachat.01net.com/outils/newsletter_MicroAchat.html\" onSubmit=\"return validateForm(this)\">\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/ban/Ban_V4_Newslett.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=153>\r\n\t\t<table width=153 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefinefd_ffffff.gif\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Recevez chaque jour l\'actualit\351 des produits et des promos<br></font>\r\n\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"email\" size=\"14\" style=\"width:130px;font:12px;\" value=\"entrez votre e-mail\" onFocus=\"javascript:document.formgen.email.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://www.01net.com/img/v4/ok_bloc_recher.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/v4/base_newsletters.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n<SCRIPT language=\"Javascript\">\r\ndocument.formgen.email.validator= \'notNullEmailPat\';\r\ndocument.formgen.email.nomvalidator= \'E-mail\';\r\n</SCRIPT>\r\n<!-- ********** FIN BLOC NL_MHA //-->\r\n</td>\r\n</tr>\r\n<tr>\r\n<!-- ********** DEBUT BLOC Actus ActusUneV4 //-->\r\n<td valign=top background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/ban/Ban_v4_LaUne.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/entreprise/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Entreprise</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://www.01net.com/article/255737.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Quand le billet papier s\'envole vers la d\351mat\351rialisation</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255737.html\"><img src=\"http://www.01net.com/img/MEA_v4/billet_virtuel-65.jpg\" border=0></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/pratique/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Trucs et astuces</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255698.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">D\351pannez Windows XP</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255698.html\"><img src=\"http://www.01net.com/img/MEA_v4/depannez_XP-65.jpg\" border=0 ></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t</tr>\r\n\t\t <tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/conso/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Conso</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255524.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Vos photos sur papier imprimante ou labo ?<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t<!-- exemple de lien avec pseudorub pour produits et tests -->\r\n\t\t<!-- <a href=\"/outils/PseudoRub.php?base=test-comp&rub=1730&pseudo=test-comp20041005\"> -->\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/produits/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Produits & Tests</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255782.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">5 programmes d\222encodage vid\351o gratuits<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n</td>\r\n<!-- ********** FIN BLOC Actus ActusUneV4 //--> </tr>\r\n<tr>\r\n<td>\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top><a href=\"mailto:s.cohen@micro-achat.fr\"><img border=0 src=\"http://www.01net.com/img/v4/espace-revendeurs.gif\"></td>\r\n\t</tr>\r\n</table>\r\n<br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20></td>\r\n<!-- FIN MODELE RUBRIQUE V4ColGaucheMHA //--> </tr><!-- - ZONE G1 -->\r\n<!-- + ZONE G2 -->\r\n<!-- - ZONE G2 -->\r\n<!-- + ZONE G3 -->\r\n<!-- - ZONE G3 -->\r\n<!-- + ZONE G4 -->\r\n<!-- - ZONE G4 -->\r\n<!-- + ZONE G5 -->\r\n<!-- - ZONE G5 -->\r\n<!-- + ZONE G6 -->\r\n<!-- - ZONE G6 -->\r\n<!-- + ZONE G7 -->\r\n<!-- - ZONE G7 -->\r\n<!-- + ZONE G8 -->\r\n<!-- - ZONE G8 -->\r\n<!-- + ZONE G9 -->\r\n<!-- - ZONE G9 -->\r\n<!-- + ZONE GA -->\r\n<!-- - ZONE GA -->\r\n<!-- + ZONE GB -->\r\n<!-- - ZONE GB -->\r\n<!-- + ZONE GC -->\r\n<!-- - ZONE GC -->\r\n<!-- + ZONE GD -->\r\n<!-- - ZONE GD -->\r\n<!-- + ZONE GE -->\r\n<!-- - ZONE GE -->\r\n<!-- + ZONE GF -->\r\n<!-- - ZONE GF -->\r\n<!-- -ZONE_Gn -->\r\n\t\t</table>\r\n\t\t<!-- fin contenu colonne de gauche //-->\r\n\t\t</td>\r\n<!-- ***************************************************************** DEBUT VENTRE*********************************************************************************************************************************************** //-->\r\n<!-- DEBUT WORK -->\r\n\t\t<td valign=top width=625 bgcolor=#ffffff><img src=\"http://www.01net.com/img/dot.gif\" width=625 height=1><br>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_hn -->\r\n<!-- + ZONE h0 -->\r\n<!-- MA_ban_int -->\r\n<td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=\"18\"><br>\r\n<!-- pour ordipda -->\r\n<table width=\"625\" cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"/img/v4/MA/Ban_MA_ordis.gif\"></td>\r\n\t</tr>\r\n</table>\r\n\t</td>\r\n<!-- /MA_ban_int --> <!-- - ZONE h0 -->\r\n<!-- + ZONE h1 -->\r\n<!-- - ZONE h1 -->\r\n<!-- + ZONE h2 -->\r\n<!-- - ZONE h2 -->\r\n<!-- -ZONE_hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Hn -->\r\n<!-- + ZONE H0 -->\r\n<!-- Ma_int_Leader -->\r\n <td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=320>\r\n<tr>\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Un nouvel ultra portable r\351alis\351 par Nec</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67509.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Le Versa S940 a un format r\351duit, mais ses performances sont \340 la hauteur.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1663 \200</font>\r\n</td>\r\n<td width=17 background=\"/img/v4/MA/v4-fond-sep-mea-leader.gif\"><img src=\"/img/dot.gif\" width=17 height=1></td>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Asus pr\351sente trois petits nouveaux dans la gamme A3N</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67168.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Ces trois portables Centrino int\350grent, entre autres, une webcam et un contr\364leur Wi-Fi.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1346 \200</font>\r\n</td>\r\n<td width=15><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t\t</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_int_Leader --> <!-- - ZONE H0 -->\r\n<!-- + ZONE H1 -->\r\n<!-- - ZONE H1 -->\r\n<!-- + ZONE H2 -->\r\n<!-- MA_BP_MP -->\r\n<td valign=\"top\" width=\"100%\">\r\n\t<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\r\n\t<tr>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_BonPlan -->\r\n<td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=1 cellspacing=0 width=145 bgcolor=#CC0000>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">BON PLAN</a></font></td>\r\n</tr>\r\n<tr>\r\n<td width=145>\r\n<div style=\"padding:5px;padding-left:5px;padding-fight:5px;margin:0px;margin-left:1px;margin-right:1px;background-color:#FFFFFF;\">\r\n<img src=\"/img/microachat/logo_shuttle_SB83G5.gif\" border=0><br>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:12px;\">Les derni\350res technologies INTEL dans un nouveau design pour ce shuttle haut de gamme, pour un prix abordable.<br></font>\r\n<center><a href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sb83g5/?fabriquant=1&page=1&tri=titre\"><img src=\"/img/microachat/mea_shuttle_SB83G5.gif\" border=0 vspace=5></a><br></center>\r\n<center>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:13px;\"><b>\340 partir de</b><br>\r\n<div style=\"border:solid 2px #CC0000;width:100px;background-color:#FFCC00;\"><b>415 \200</b></div>\r\n</center>\r\n</div>\r\n</td>\r\n</tr>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">publicit\351</a></font></td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_BonPlan --> \t</td>\r\n\t<td width=\"15\"><img src=\"/img/dot.gif\" width=\"15\"></td>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_MeillPrixAct //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=145 height=1><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=18><br>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"prix\" action=\"http://www.micro-achat.01net.com/guide-produits/recherche.php\" method=\"post\">\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/ban/Ban_v4_MeillPrix_MA.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=143>\r\n\t\t<table width=143 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=6><img src=\"http://www.01net.com/img/dot.gif\" width=6 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img src=\"http://www.01net.com/img/ban/Ban_MA_trouv_ordi.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Desktops</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/portables/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Portables</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Mini-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/pda---tablets-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Pda / Tablets-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/apple/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Apple</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/gps/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">GPS</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20><br>\r\n\t\t\t\t\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"width:130px;font:12px;\" value=\" recherche directe\" onFocus=\"javascript:document.prix.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/v4/MA/base_meillPrix.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_MeillPrixAct //--> \t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n<!-- /MA_BP_MP --> <!-- - ZONE H2 -->\r\n<!-- -ZONE_Hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Tn -->\r\n<!-- + ZONE T0 -->\r\n <td valign=\"top\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n<tr>\r\n<td width=305><img src=\"http://www.01net.com/img/ban/Ban_v4_DernNews_MA.gif\"><br><img src=\"http://www.01net.com/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n</tr>\r\n<tr>\r\n<td bgcolor=\"#FEF9E0\">\r\n\t<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255149.html\" style=\"color:#000000;text-decoration:none;\">Toshiba consacre deux gammes de machines au multim\351dia</a></b><br>\r\n\t<font color=\"#000000\">Equipement haut de gamme et Windows Media Center sont au menu de ces portables \340 vocation multim\351dia.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Ordinateur <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254686.html\" style=\"color:#000000;text-decoration:none;\">Arriv\351e d\'un Power Mac G5 d\'entr\351e de gamme</a></b><br>\r\n\t<font color=\"#000000\">La firme \340 la pomme propose une station de travail \351volutive et relativement abordable.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>PC <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254549.html\" style=\"color:#000000;text-decoration:none;\">Alienware propose deux machines au look \351trange</a></b><br>\r\n\t<font color=\"#000000\">Aurora et Area 51 sont deux gammes d\'ordinateurs enti\350rement configurables.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254501.html\" style=\"color:#000000;text-decoration:none;\">Trois nouveaux iBook G4 chez Apple</a></b><br>\r\n\t<font color=\"#000000\">Chez Apple, les portables gagnent en vitesse et communiquent sans fil en standard.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t\t<tr>\r\n\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td align=\"right\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4365.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les news</font></a>\r\n\t\t\t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n</td> <!-- - ZONE T0 -->\r\n<!-- + ZONE T1 -->\r\n<!-- Ma_derpromo -->\r\n <td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=13><br>\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td bgcolor=\"#ffffff\"><img src=\"/img/v4/MA/v4-lespromos-mha.gif\"><br><img src=\"/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n</tr>\r\n</table>\r\n<!-- DEBUT MODELE D\'AFFICHAGE POUR LES n PREMIERS ARTICLES //-->\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255806.html\" class=\"nodeco\"><img src=\"/images/67462.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255806.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Asus A3N15-C Pro</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable autonome et puissant gr\342ce \340 la technologie Intel Centrino.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1170 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255688.html\" class=\"nodeco\"><img src=\"/images/67381.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255688.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Soltek EQ3702A Miroir</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Ce mini PC est une solution int\351ressante pour les utilisateurs poss\351dant d\351j\340 un \351cran.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>559 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255513.html\" class=\"nodeco\"><img src=\"/images/67319.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255513.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>IBM ThinkPad R51</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable complet et pourtant relativement l\351ger.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1299 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t\t<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n</tr>\r\n<tr>\r\n<td background=\"/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"/img/dot.gif\" height=1></td>\r\n</tr>\r\n<tr>\r\n<td align=\"right\" valign=\"top\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4366.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les promos</font></a>\r\n\t\t</td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_derpromo --> <!-- - ZONE T1 -->\r\n<!-- + ZONE T2 -->\r\n<!-- - ZONE T2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE T3 -->\r\n<!-- DEBUT MicroAchat MA_PubG -->\r\n<td valign=top align=center>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45590/[timestamp]?\" target=_blank><img src=\"/img/microachat/Bandeau_FX6021.jpg\" border=0></a></td>\r\n\t\t<td><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubG --> <!-- - ZONE T3 -->\r\n<!-- + ZONE T4 -->\r\n<!-- DEBUT MicroAchat MA_PubD -->\r\n<td valign=top align=center>\r\n<table border=0 width=305 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45591/[timestamp]?\" target=_blank><img src=\"/img/microachat/twc_305x125.jpg\" border=0></a></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubD --> <!-- - ZONE T4 -->\r\n<!-- + ZONE T5 -->\r\n<!-- - ZONE T5 -->\r\n<!-- -ZONE_Tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n<!-- +ZONE_gn -->\r\n<!-- + ZONE g0 -->\r\n<!-- - ZONE g0 -->\r\n<!-- + ZONE g1 -->\r\n<!-- - ZONE g1 -->\r\n<!-- + ZONE g2 -->\r\n<!-- - ZONE g2 -->\r\n<!-- + ZONE g3 -->\r\n<!-- - ZONE g3 -->\r\n<!-- + ZONE g4 -->\r\n<!-- - ZONE g4 -->\r\n<!-- + ZONE g5 -->\r\n<!-- - ZONE g5 -->\r\n<!-- + ZONE g6 -->\r\n<!-- - ZONE g6 -->\r\n<!-- + ZONE g7 -->\r\n<!-- - ZONE g7 -->\r\n<!-- + ZONE g8 -->\r\n<!-- - ZONE g8 -->\r\n<!-- + ZONE g9 -->\r\n<!-- - ZONE g9 -->\r\n<!-- -ZONE_gn -->\r\n\t\t\t</table>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t\t\t<tr>\r\n<!-- +ZONE_Mn -->\r\n<!-- + ZONE M0 -->\r\n<!-- modele Ma_GuideAch //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_GuideAchat_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<center>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67088.jpg.res_121-111.jpg\" border=0 hspace=0 vspace=0></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n</center>\r\n<div style=\"padding:5px;\">\r\n<a href=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\"><b>Les graveurs de DVD</b><br></font></a>\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Quel graveur choisir ? Quel type de format ? Quelle vitesse ? Double couche ou simple couche ? Voici tout ce qu\'il faut savoir pour faire le bon choix.</font></div>\r\n\t\t\t\t\t\t</div>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M0 -->\r\n<!-- + ZONE M1 -->\r\n<!-- modele Ma_DirectLab //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_DirectLab_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255744.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Kodak EasyShare Printer Dock Plus :</b>\r\n\t\t\t\t\t\tvos photos 10 x 15 cm en 60 secondes</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255780.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>3DMark05 :</b>\r\n\t\t\t\t\t\tun labo 3D \340 domicile</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255691.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>DVDInfoPro 2.6</b>\r\n\t\t\t\t\t\treconna\356t CD et DVD</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255722.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Scaleo PA D3008, de Fujitsu-Siemens :</b>\r\n\t\t\t\t\t\tune impression d\'inachev\351</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255514.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Carbon 5 Go : 2 500 chansons dans le creux de la main</font></a></div>\r\n\t\t\t</div></td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M1 -->\r\n<!-- + ZONE M2 -->\r\n<!-- DEBUT MicroAchat MA_AnnTelec -->\r\n<td valign=top>\r\n<script type=\"text/javascript\">\r\nfunction regionChange()\r\n{\r\ndocument.selection.departement.options.length=0;\r\nswitch(document.selection.region.value)\r\n\t{\r\n\t\tcase \"aucun\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Nord-Pas-de-Calais\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pas-de-Calais\", \"Pas-de-Calais\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nord\", \"Nord\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Haute-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure\", \"Eure\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Maritime\", \"Seine-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Basse-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Manche\", \"Manche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Calvados\", \"Calvados\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Orne\", \"Orne\");\r\n\t\tbreak;\r\n\t\tcase \"Picardie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Somme\", \"Somme\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Oise\", \"Oise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aisne\", \"Aisne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bretagne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Finistere\", \"Finistere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cotes-dArmor\", \"Cotes-dArmor\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Morbihan\", \"Morbihan\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ille-et-Vilaine\", \"Ille-et-Vilaine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Pays-de-Loire\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire-Atlantique\", \"Loire-Atlantique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vendee\", \"Vendee\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Maine-et-Loire\", \"Maine-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayenne\", \"Mayenne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Sarthe\", \"Sarthe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Centre\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure-et-Loir\", \"Eure-et-Loir\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loiret\", \"Loiret\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loir-et-Cher\", \"Loir-et-Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre-et-Loire\", \"Indre-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre\", \"Indre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cher\", \"Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Ile-de-France\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-dOise\", \"Val-dOise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yvelines\", \"Yvelines\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Essonne\", \"Essonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-et-Marne\", \"Seine-et-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hauts-de-Seine\", \"Hauts-de-Seine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Saint-Denis\", \"Seine-Saint-Denis\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-de-Marne\", \"Val-de-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Paris\", \"Paris\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Champagnes-Ardennes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardennes\", \"Ardennes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Marne\", \"Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aube\", \"Aube\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Marne\", \"Haute-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Lorraine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vosges\", \"Vosges\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meurthe-et-Moselle\", \"Meurthe-et-Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meuse\", \"Meuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Moselle\", \"Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Alsace\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bas-Rhin\", \"Bas-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haut-Rhin\", \"Haut-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Franche-Compte\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Jura\", \"Jura\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Doubs\", \"Doubs\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Saone\", \"Haute-Saone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Territoire-de-Belfort\", \"Territoire-de-Belfort\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bourgogne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yonne\", \"Yonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nievre\", \"Nievre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cote-dOr\", \"Cote-dOr\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Saone-et-Loire\", \"Saone-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Poitou-Charentes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Deux-Sevres\", \"Deux-Sevres\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente-Maritime\", \"Charente-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente\", \"Charente\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vienne\", \"Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Limousin\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Vienne\", \"Haute-Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Correze\", \"Correze\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Creuse\", \"Creuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Auvergne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Allier\", \"Allier\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Puy-de-Dome\", \"Puy-de-Dome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cantal\", \"Cantal\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Loire\", \"Haute-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Rhone-Alpes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire\", \"Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Rhone\", \"Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ain\", \"Ain\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardeche\", \"Ardeche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Drome\", \"Drome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Isere\", \"Isere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Savoie\", \"Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Savoie\", \"Haute-Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Aquitaine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gironde\", \"Gironde\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Landes\", \"Landes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Atlantiques\", \"Pyrenees-Atlantiques\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot-et-Garonne\", \"Lot-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Dordogne\", \"Dordogne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Midi-Pyrenees\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot\", \"Lot\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn-et-Garonne\", \"Tarn-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gers\", \"Gers\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Pyrenees\", \"Hautes-Pyrenees\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Garonne\", \"Haute-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ariege\", \"Ariege\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn\", \"Tarn\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aveyron\", \"Aveyron\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Languedoc-Roussillon\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Orientales\", \"Pyrenees-Orientales\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aude\", \"Aude\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Herault\", \"Herault\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gard\", \"Gard\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lozere\", \"Lozere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Provence-Alpes-Cote-dazur\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bouches-du-Rhone\", \"Bouches-du-Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vaucluse\", \"Vaucluse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-de-haute-Provence\", \"Alpes-de-haute-Provence\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Alpes\", \"Hautes-Alpes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Var\", \"Var\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-Maritimes\", \"Alpes-Maritimes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Corse\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Corse-du-Sud\", \"Corse-du-Sud\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Corse\", \"Haute-Corse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"DomTom\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guadeloupe\", \"Guadeloupe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guyane\", \"Guyane\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"La-Reunion\", \"La-Reunion\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Martinique\", \"Martinique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayotte\", \"Mayotte\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"St-Pierre-et-Miquelon\", \"St-Pierre-et-Miquelon\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t}\r\n}\r\nfunction deptChange()\r\n{\r\nif (document.selection.departement.value == \'Paris\')\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'inline\';\r\nelse\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'none\';\r\n}\r\n</script>\r\n<table width=305 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td valign=top>\r\n\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_AnnuaiRev_MA.gif\" vspace=1></td>\r\n\t\t\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr><form action=\"http://micro-achat.01net.com/annuaire/recherche.php\" method=\"post\" name=\"selection\">\r\n\t\t\t\t<td bgcolor=#FFFFDD>\r\n\t\t\t\t<div style=\"border:solid 1px #FFCC00;width:100%\"><div style=\"padding:2px;\"><img src=\"http://www.01net.com/img/v4/MA/carte_revend.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Choisir une r\351gion</b><br></font>\r\n<select name=\"region\" onChange=\"regionChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n<option value=\"Nord-Pas-de-Calais\">Nord-Pas-de-Calais</option>\r\n<option value=\"Haute-Normandie\">Haute-Normandie</option>\r\n<option value=\"Basse-Normandie\">Basse-Normandie</option>\r\n<option value=\"Picardie\">Picardie</option>\r\n<option value=\"Bretagne\">Bretagne</option>\r\n<option value=\"Pays-de-Loire\">Pays-de-Loire</option>\r\n<option value=\"Centre\">Centre</option>\r\n<option value=\"Ile-de-France\">Ile-de-France</option>\r\n<option value=\"Champagnes-Ardennes\">Champagne ardennes</option>\r\n<option value=\"Lorraine\">Lorraine</option>\r\n<option value=\"Alsace\">Alsace</option>\r\n<option value=\"Franche-Compte\">Franche-Compte</option>\r\n<option value=\"Bourgogne\">Bourgogne</option>\r\n<option value=\"Poitou-Charentes\">Poitou-Charentes</option>\r\n<option value=\"Limousin\">Limousin</option>\r\n<option value=\"Auvergne\">Auvergne</option>\r\n<option value=\"Rhone-Alpes\">Rhone-Alpes</option>\r\n<option value=\"Aquitaine\">Aquitaine</option>\r\n<option value=\"Midi-Pyrenees\">Midi-Pyrenees</option>\r\n<option value=\"Languedoc-Roussillon\">Languedoc roussillon</option>\r\n<option value=\"Provence-Alpes-Cote-dazur\">PACA</option>\r\n<option value=\"Corse\">Corse</option>\r\n<option value=\"DomTom\">DomTom</option>\r\n</select>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un d\351partement</b><br></font>\r\n<select name=\"departement\" onChange=\"deptChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n</select>\r\n<div id=\"arrondissement\" style=\"display : none;\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un arrondissement</b><br></font>\r\n<select name=\"arrondissement\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"0\">-------------</option>\r\n<option value=\"1\">I</option>\r\n<option value=\"2\">II</option>\r\n<option value=\"3\">III</option>\r\n<option value=\"4\">IV</option>\r\n<option value=\"5\">V</option>\r\n<option value=\"6\">VI</option>\r\n<option value=\"7\">VII</option>\r\n<option value=\"8\">VIII</option>\r\n<option value=\"9\">IX</option>\r\n<option value=\"10\">X</option>\r\n<option value=\"11\">XI</option>\r\n<option value=\"12\">XII</option>\r\n<option value=\"13\">XIII</option>\r\n<option value=\"14\">XIV</option>\r\n<option value=\"15\">XV</option>\r\n<option value=\"16\">XVI</option>\r\n<option value=\"17\">XVII</option>\r\n<option value=\"18\">XVIII</option>\r\n<option value=\"19\">XIX</option>\r\n<option value=\"20\">XX</option>\r\n</select>\r\n</div>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche directe</b><br></font>\r\n\t\t\t\t<font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\"><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>rechercher une ville<br><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>et/ou une boutique<br></font>\r\n\t\t\t\t<input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;width:130px;\" value=\"\" onFocus=\"javascript:document.selection.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=3><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1> <input type=\"image\" src=\"http://www.01net.com/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\">\r\n\t\t\t\t<table height=23 width=135 cellspacing=0 cellpadding=0 border=0 bgcolor=#FFEE77>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td bgcolor=#FFEE77 valign=middle align=center><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://micro-achat.01net.com/annuaire/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche avanc\351e</b></font></a></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t</div>\r\n\t\t\t\t</div>\r\n\t\t\t\t</td>\r\n\t\t\t</tr></form>\r\n\t\t</table>\r\n\t\t</td>\r\n<!-- DEBUT MicroAchat MA_Telecharg //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/v4/MA/Ban_v4_MA_telec.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"#DFECF6\">\r\n\t\t\t<tr>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"></td>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Bureautique\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Bureautique</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Traducteur, organiseur...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Multimedia\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Multim\351dia</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Photo, audio, vid\351o...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Utilitaire\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Utilitaires</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Antivirus, pilotes, gravure...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Personnaliser\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Personnaliser son PC</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Ecrans de veille, th\350mes...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Programmation\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>D\351veloppement</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Cr\351ation de logiciels, BDD...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Jeux\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Jeux</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Action, simulation...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Internet\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Internet</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Utilitaires, email, FTP...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Loisirs\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Loisirs</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Humour, culture...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_Telecharg //--> \t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_AnnTelec --> <!-- - ZONE M2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE M3 -->\r\n<!-- - ZONE M3 -->\r\n<!-- + ZONE M4 -->\r\n<!-- - ZONE M4 -->\r\n<!-- + ZONE M5 -->\r\n<!-- - 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ZONE d6 -->\r\n<!-- + ZONE d7 -->\r\n<!-- - ZONE d7 -->\r\n<!-- + ZONE d8 -->\r\n<!-- - ZONE d8 -->\r\n<!-- + ZONE d9 -->\r\n<!-- - ZONE d9 -->\r\n<!-- -ZONE_dn -->\r\n\t\t\t\t</tr>\r\n\t\t\t</table>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t</table>\r\n<!-- FIN WORK -->\r\n\t\t</td>\r\n<!-- *********************************************************************FIN VENTRE********************************************************************************************************************************************** //-->\r\n\t\t<td rowspan=2 valign=top width=23 background=\"http://www.01net.com/img/v4/sep_verticale.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=23 height=1><br></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t\t<td colspan=2>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=100%>\r\n<!-- +ZONE_Bn -->\r\n<!-- + ZONE B0 -->\r\n<!-- - ZONE B0 -->\r\n<!-- + ZONE B1 -->\r\n<tr><!-- ********** DEBUT BLOC Home NosJournauxV4 //-->\r\n<td valign=top bgcolor=#FFFFFF>\r\n<img 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href=\"http://telephone_portable.telecharger.01net.com/mobile/\">t\351l\351phone portable</a>,\r\n<a href=\"http://telephone_mobile.telecharger.01net.com/mobile/\">t\351l\351phone mobile</a>\r\n</noscript>\r\n</head>\r\n</head>\r\n<body bgcolor=\"#FFFFFF\" text=\"#000000\" link=\"#000000\" marginwidth=0 marginheight=0 topmargin=0 leftmargin=0>\r\n<!-- + ZONE TETE -->\r\n<!-- ********** DEBUT MODELE INTERNE TETES MHA-tetev4 //-->\r\n<table width=100% height=66 cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td height=8 colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=8></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td valign=bottom><a href=\"http://microachat.01net.com\"><img src=\"http://www.01net.com/img/v4/logos_tete/tet_gauche-mha.gif\" border=0></a></td>\r\n\t\t<td valign=bottom bgcolor=#FFFFFF bbackground=\"http://www.01net.com/img/v4/tet_droite.gif\" width=100% style=\"background-image:url(/img/v4/tet_droite-mha.gif);background-position:bottom;background-repeat:repeat-x\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=66 align=left hspace=0 vspace=0></td>\r\n\t</tr>\r\n</table>\r\n<table width=100% cellspacing=0 cellpadding=0 border=0 bgcolor=#ffffff>\r\n\t<tr>\r\n\t\t<td valign=top background=\"http://www.01net.com/img/v4/fond_date-mha.gif\" height=18 width=500><img src=\"http://www.01net.com/img/dot.gif\" width=500 height=1><br><img src=\"http://www.01net.com/img/dot.gif\" width=19 height=1><font face=\"Arial\" size=1 color=#666666 style=\"font-size: 11px;\"><b>Derni\350re mise \340 jour de cette page : lundi 8 novembre 2004 | 16:45</b></font></td>\r\n\t\t<td width=100% background=\"http://www.01net.com/img/v4/fond_date2-mha.gif\" height=18></td>\r\n\t</tr>\r\n</table>\r\n<!-- ********** FIN MODELE INTERNE TETES MHA-tetev4 //--> <!-- - ZONE TETE -->\r\n<!-- ***************************************************************************************************************************************************************************************************************************** //-->\r\n<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n<!-- DEBUT PARTIE PUB //-->\r\n\t<tr>\r\n<td align=center valign=middle colspan=2 background=\"http://www.01net.com/img/v4/fond_bann.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br>\r\n<!-- + ZONE Z0 -->\r\n<SCRIPT LANGUAGE=\"JAVASCRIPT\">\r\nvar fa = \"\";\r\nvar fab = document.URL.toString();\r\nif (fab.indexOf(\"?fa\") != -1 || fab.indexOf(\"&fa\") != -1)\r\n{\r\nfa = \";!category=fai\";\r\n}\r\nvar etatmessage = false;\r\nvar enchainement = false;\r\n</SCRIPT>\r\n<SCRIPT LANGUAGE=\"JavaScript1.1\">\r\nsas_pageid=\'167/3872\';\r\nsas_formatid=95;\t\t\t// Format : Banner/Scope 468x60\r\nsas_master=\'M\';\t\t\t// Master : M=master or S=slave\r\nsas_target=exc + 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background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Imagerie </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/12537-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/imagerie/moniteurs-lcd/l1720b/\">LG L1720B</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">332.89 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4043-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/veriton-7600g/\">Acer Veriton 7600G</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">705 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Ordinateurs </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1903-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sn95g5/\">Shuttle SN95G5</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">375 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/1259-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/cartes-meres/a7n8x-e-deluxe/\">Asus A7N8X-E Deluxe</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">91.99 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr><tr>\n\t\t\t\t\t\t\t<td style=\"height : 12px; vertical-align : top; padding : 0; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/point.gif); background-repeat: repeat-x; background-position : 0px 3px;\" colspan=\"2\"><span style=\"float : left; position : relative; font-size : 10px; color : #cc0003; background-color : #ffffff;\">Composants </span></td>\n\t\t\t\t\t\t</tr>\n\t\t\t\t\t\t<tr>\n\t\t\t\t\t\t\t<td style=\"width : 65px; vertical-align : top;\"><img src=\"http://micro-achat.01net.com/img/photoproduit/4687-vignette.png\" alt=\"\" style=\"border : 1px solid #000000;\" /></td>\n\t\t\t\t\t\t\t<td style=\"width : 75px; font-size : 11px; font-weight : 700;\">\n\t\t\t\t\t\t\t\t<a style=\"color : #cc0003; text-decoration : none;\" href=\"http://micro-achat.01net.com/guide-produits/composants/ventilateur/sp-94/\">Thermalright SP-94</a>\n\t\t\t\t\t\t\t\t<div style=\"text-align : center; width : 100%; font-size : 9px; font-weight : 100; margin-top : 5px;\">\n\t\t\t\t\t\t\t\t\t\340 partir de\n\t\t\t\t\t\t\t\t\t<div style=\"width : 75px; height : 21px; color : #ffffff; font-size : 12px; font-weight : 700; background-image : url(http://micro-achat.01net.com/img/utils/micro-achat/fond-prix.gif);\"><span style=\"position : relative; top : 3px;\">49 €</span></div>\n\t\t\t\t\t\t\t\t</div>\n\t\t\t\t\t\t\t</td>\n\t\t\t\t\t\t</tr></table>\n\t\t\t\t<table style=\"border-spacing : 0px 1px; width : 146px; margin-top : 15px;\" cellspacing=\"0\">\n\t\t\t\t<tr><th colspan=\"2\" style=\"padding : 0;\"><img src=\"http://micro-achat.01net.com/img/utils/micro-achat/tete-revendeurmisajour.gif\" alt=\"\" /></th></tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">1 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Rhone-Alpes/Ain/pc-look\" style=\"color : #000000; text-decoration : none;\">PC Look</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">2 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Nord-Pas-de-Calais/Pas-de-Calais/atelier-informatique\" style=\"color : #000000; text-decoration : none;\">Atelier Informatique</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">3 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Val-de-Marne/zanax-multimedia\" style=\"color : #000000; text-decoration : none;\">Zanax Multim\351dia</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">4 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Hauts-de-Seine/misteroops\" style=\"color : #000000; text-decoration : none;\">MISTEROOPS</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">5 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/168-golden-avenue\" style=\"color : #000000; text-decoration : none;\">168 Golden Avenue</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">6 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-Saint-Denis/microchoix\" style=\"color : #000000; text-decoration : none;\">microchoix</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">7 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/12/e-soph\" style=\"color : #000000; text-decoration : none;\">e-Soph</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">8 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Paris/13/pc-price-club\" style=\"color : #000000; text-decoration : none;\">PC Price Club</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ddeeee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">9 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Ile-de-France/Seine-et-Marne/pc-77\" style=\"color : #000000; text-decoration : none;\">PC 77</a></td>\n\t\t\t\t</tr><tr style=\"background-color : #ccddee; font-size : 10px; font-weight : 700; color : #cc0003;\">\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 32px;\">10 <img src=\"http://micro-achat.01net.com/img/utils/micro-achat/flechefine_fondtransp.gif\" alt=\">\" /></td>\n\t\t\t\t\t<td style=\"border-top : 1px solid #ffffff; width : 110px;\"><a href=\"http://micro-achat.01net.com/annuaire/Alsace/Bas-Rhin/web-in-informatique\" style=\"color : #000000; text-decoration : none;\">Web In Informatique</a></td>\n\t\t\t\t</tr></table>\n\t\t\t\t</div>\n\t\t\t\t<br>\r\n<!-- FIN MA_ColD --> <!-- - ZONE D0 -->\r\n<!-- + ZONE D1 -->\r\n<!-- - ZONE D1 -->\r\n<!-- + ZONE D2 -->\r\n<!-- - ZONE D2 -->\r\n<!-- -ZONE_Dn -->\r\n</td>\r\n\t</tr>\r\n<!-- FIN PARTIE PUB //-->\r\n\t<tr>\r\n\t\t<td valign=top width=193 height=100% background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n\t\t<!-- contenu colonne de gauche //-->\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0 background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<!-- +ZONE_Gn -->\r\n<!-- + ZONE G0 -->\r\n<tr><!-- ********** DEBUT MHA_MenusChainesV4 //-->\r\n<td valign=top>\n<table border=0 cellpadding=0 cellspacing=0 width=193 bgcolor=#FFFFFF>\n<tr>\n<td background=\"/img/v4/menus/motifgauche_menus.gif\" width=20 rowspan=2><img src=\"/img/dot.gif\" width=20 height=20></td>\n<td width=173 colspan=2 bgcolor=#FFFFFF><img src=\"/img/dot.gif\" width=173 height=20></td>\n</tr>\n<tr>\n<td valign=top width=159>\n\n<a href=\"http://www.01net.com\"><img src=\"/img/v4/menus/mha/home01net-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com\"><img src=\"/img/v4/menus/mha/home-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4317.html\"><img src=\"/img/v4/menus/mha/ordinateurs-2.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4318.html\"><img src=\"/img/v4/menus/mha/composants-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4319.html\"><img src=\"/img/v4/menus/mha/stockage-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4320.html\"><img src=\"/img/v4/menus/mha/image-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4321.html\"><img src=\"/img/v4/menus/mha/peripheriques-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4322.html\"><img src=\"/img/v4/menus/mha/reseaux-1.gif\" width=159 border=0></a><br>\n<a href=\"http://microachat.01net.com/rubrique/4323.html\"><img src=\"/img/v4/menus/mha/accessoires-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/guide-produits/\"><img src=\"/img/v4/menus/mha/comparateur-1.gif\" width=159 border=0></a><br>\n<a href=\"http://micro-achat.01net.com/annuaire/\"><img src=\"/img/v4/menus/mha/annuaire-1.gif\" width=159 border=0></a><br></td>\n<td width=14><img src=\"/img/dot.gif\" width=14 height=14></td>\n</tr>\n<tr>\n<td colspan=3><img src=\"/img/v4/menus/bas_menus.gif\" width=193 height=31></td>\n</tr>\n</table></td><!-- ********** FIN MHA_MenusChainesV4 //--> </tr><!-- - ZONE G0 -->\r\n<!-- + ZONE G1 -->\r\n<tr><!-- DEBUT MODELE RUBRIQUE V4ColGaucheMHA //-->\r\n<!-- ********** DEBUT BLOC DernieresNewsTC //-->\r\n<td valign=top>\r\n<!-- DEBUT RECHERCHE MHA -->\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top background=\"http://microachat.01net.com/img/v4/fond_rech_mha.gif\" height=98 style=\"background-repeat:no-repeat;\"><form method=\"get\" name=\"chercher\" action=\"http://www.01net.com/aiguillage_recherche/1,6138,,00.html\"><img src=\"http://microachat.01net.com/img/dot.gif\" width=193 height=17><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"text\" name=\"fullText\" style=\"width:130px;font:12px;\"><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=6><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><select name=\"sousArbo\" style=\"width:130px;font:12px;\">\r\n\t\t\t<option value=\"mha\">dans Micro Achat\r\n\t\t\t<option value=\"cmp\">les prix\r\n\t\t\t<option value=\"ann\">les revendeurs\r\n\t\t\t<option value=\"2641\">tout 01net.\r\n\t\t\t<option value=\"emploi\">les offres d\'emploi\r\n\t\t\t<option value=\"telecharger\"> telecharger.com\r\n\t\t\t<option value=\"web\">le web\r\n\t\t\t</select><br><img src=\"http://microachat.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://microachat.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://microachat.01net.com/img/v4/ok_bloc_recher_mha.gif\" border=\"0\"></form>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10 vspace=0>\r\n<!-- FIN RECHERCHE MHA -->\r\n <!-- modele TCFilColgTitV4 //-->\r\n <table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/ban/Ban_v4_DernieresNews01net.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/256059.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">CD et DVD bient\364t insensibles aux rayures<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255796.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">OpenOffice gagne son service<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"></td>\r\n\t\t\t\t<td valign=top><A HREF=\"http://www.01net.com/article/255731.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">La messagerie en cinq minutes selon Ipswitch<br></font></a><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=2></td>\r\n\t\t\t</tr>\r\n\t\t\t\t\t\t\t\t<tr>\r\n\t\t\t\t<td valign=top colspan=2><A HREF=\"http://www.01net.com/actus/\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\">> toutes les news<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t\t<tr>\r\n\t\t\t\t<td colspan=2><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/crochet_bleuhaut_155.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20> <!-- ********** FIN BLOC DernieresNewsTC //-->\r\n<!-- ********** DEBUT BLOC NL_MHA //-->\r\n<SCRIPT language=\"javascript\" src=\"http://www.01net.com/js/lib.js\"></SCRIPT>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"formgen\" method=\"get\" action=\"http://microachat.01net.com/outils/newsletter_MicroAchat.html\" onSubmit=\"return validateForm(this)\">\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/ban/Ban_V4_Newslett.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=153>\r\n\t\t<table width=153 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=10><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefinefd_ffffff.gif\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Recevez chaque jour l\'actualit\351 des produits et des promos<br></font>\r\n\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"email\" size=\"14\" style=\"width:130px;font:12px;\" value=\"entrez votre e-mail\" onFocus=\"javascript:document.formgen.email.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"http://www.01net.com/img/v4/ok_bloc_recher.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#CC0000><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td width=155 colspan=4><img src=\"http://www.01net.com/img/v4/base_newsletters.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n<SCRIPT language=\"Javascript\">\r\ndocument.formgen.email.validator= \'notNullEmailPat\';\r\ndocument.formgen.email.nomvalidator= \'E-mail\';\r\n</SCRIPT>\r\n<!-- ********** FIN BLOC NL_MHA //-->\r\n</td>\r\n</tr>\r\n<tr>\r\n<!-- ********** DEBUT BLOC Actus ActusUneV4 //-->\r\n<td valign=top background=\"http://www.01net.com/img/v4/sepgrisedroite.gif\">\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top>\r\n\t\t<table width=155 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/ban/Ban_v4_LaUne.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/entreprise/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Entreprise</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://www.01net.com/article/255737.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Quand le billet papier s\'envole vers la d\351mat\351rialisation</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255737.html\"><img src=\"http://www.01net.com/img/MEA_v4/billet_virtuel-65.jpg\" border=0></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/pratique/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Trucs et astuces</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255698.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">D\351pannez Windows XP</font></a></td>\r\n\t\t\t\t<td valign=top width=2><img src=\"http://www.01net.com/img/dot.gif\" width=2 height=1></td>\r\n\t\t\t\t<td valign=top><a href=\"http://www.01net.com/article/255698.html\"><img src=\"http://www.01net.com/img/MEA_v4/depannez_XP-65.jpg\" border=0 ></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t</tr>\r\n\t\t <tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/conso/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Conso</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255524.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">Vos photos sur papier imprimante ou labo ?<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t<!-- exemple de lien avec pseudorub pour produits et tests -->\r\n\t\t<!-- <a href=\"/outils/PseudoRub.php?base=test-comp&rub=1730&pseudo=test-comp20041005\"> -->\r\n\t\t\t<tr>\r\n\t\t\t\t<td valign=top width=1><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t\t\t<td valign=top colspan=3><a href=\"http://www.01net.com/produits/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b><u>Produits & Tests</u></b><br></font></a>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"/article/255782.html\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 11px; text-decoration:none;\">5 programmes d\222encodage vid\351o gratuits<br></font></a></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td colspan=4><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/LaUne_Sep.gif\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t</tr>\r\n</table>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20>\r\n</td>\r\n<!-- ********** FIN BLOC Actus ActusUneV4 //--> </tr>\r\n<tr>\r\n<td>\r\n<table width=193 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" width=10 height=1></td>\r\n\t\t<td valign=top><a href=\"mailto:s.cohen@micro-achat.fr\"><img border=0 src=\"http://www.01net.com/img/v4/espace-revendeurs.gif\"></td>\r\n\t</tr>\r\n</table>\r\n<br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20></td>\r\n<!-- FIN MODELE RUBRIQUE V4ColGaucheMHA //--> </tr><!-- - ZONE G1 -->\r\n<!-- + ZONE G2 -->\r\n<!-- - ZONE G2 -->\r\n<!-- + ZONE G3 -->\r\n<!-- - ZONE G3 -->\r\n<!-- + ZONE G4 -->\r\n<!-- - ZONE G4 -->\r\n<!-- + ZONE G5 -->\r\n<!-- - ZONE G5 -->\r\n<!-- + ZONE G6 -->\r\n<!-- - ZONE G6 -->\r\n<!-- + ZONE G7 -->\r\n<!-- - ZONE G7 -->\r\n<!-- + ZONE G8 -->\r\n<!-- - ZONE G8 -->\r\n<!-- + ZONE G9 -->\r\n<!-- - ZONE G9 -->\r\n<!-- + ZONE GA -->\r\n<!-- - ZONE GA -->\r\n<!-- + ZONE GB -->\r\n<!-- - ZONE GB -->\r\n<!-- + ZONE GC -->\r\n<!-- - ZONE GC -->\r\n<!-- + ZONE GD -->\r\n<!-- - ZONE GD -->\r\n<!-- + ZONE GE -->\r\n<!-- - ZONE GE -->\r\n<!-- + ZONE GF -->\r\n<!-- - ZONE GF -->\r\n<!-- -ZONE_Gn -->\r\n\t\t</table>\r\n\t\t<!-- fin contenu colonne de gauche //-->\r\n\t\t</td>\r\n<!-- ***************************************************************** DEBUT VENTRE*********************************************************************************************************************************************** //-->\r\n<!-- DEBUT WORK -->\r\n\t\t<td valign=top width=625 bgcolor=#ffffff><img src=\"http://www.01net.com/img/dot.gif\" width=625 height=1><br>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_hn -->\r\n<!-- + ZONE h0 -->\r\n<!-- MA_ban_int -->\r\n<td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=\"18\"><br>\r\n<!-- pour ordipda -->\r\n<table width=\"625\" cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td><img src=\"/img/v4/MA/Ban_MA_ordis.gif\"></td>\r\n\t</tr>\r\n</table>\r\n\t</td>\r\n<!-- /MA_ban_int --> <!-- - ZONE h0 -->\r\n<!-- + ZONE h1 -->\r\n<!-- - ZONE h1 -->\r\n<!-- + ZONE h2 -->\r\n<!-- - ZONE h2 -->\r\n<!-- -ZONE_hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Hn -->\r\n<!-- + ZONE H0 -->\r\n<!-- Ma_int_Leader -->\r\n <td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=320>\r\n<tr>\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Un nouvel ultra portable r\351alis\351 par Nec</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/256198.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67509.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Le Versa S940 a un format r\351duit, mais ses performances sont \340 la hauteur.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1663 \200</font>\r\n</td>\r\n<td width=17 background=\"/img/v4/MA/v4-fond-sep-mea-leader.gif\"><img src=\"/img/dot.gif\" width=17 height=1></td>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<td width=144 valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=143 height=1 vspace=0><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:11px;>Portable</font><br>\r\n<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=font-size:14px;><b>Asus pr\351sente trois petits nouveaux dans la gamme A3N</b></font></a><br>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255194.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67168.jpg.res_100-100.jpg\" border=0 hspace=0 vspace=0></a><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n<font face=arial,helvetica size=2 color=#000000 style=font-size:12px;><img src=\"/img/v4/flechefine_fondtransp.gif\">Ces trois portables Centrino int\350grent, entre autres, une webcam et un contr\364leur Wi-Fi.</font><br>\r\n<font face=arial,helvetica size=1 color=#CC0000 style=font-size:12px;>\340 partir de 1346 \200</font>\r\n</td>\r\n<td width=15><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t\t</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_int_Leader --> <!-- - ZONE H0 -->\r\n<!-- + ZONE H1 -->\r\n<!-- - ZONE H1 -->\r\n<!-- + ZONE H2 -->\r\n<!-- MA_BP_MP -->\r\n<td valign=\"top\" width=\"100%\">\r\n\t<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\r\n\t<tr>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_BonPlan -->\r\n<td valign=top>\r\n<img src=\"/img/dot.gif\" width=1 height=18><br>\r\n<table border=0 cellpadding=1 cellspacing=0 width=145 bgcolor=#CC0000>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">BON PLAN</a></font></td>\r\n</tr>\r\n<tr>\r\n<td width=145>\r\n<div style=\"padding:5px;padding-left:5px;padding-fight:5px;margin:0px;margin-left:1px;margin-right:1px;background-color:#FFFFFF;\">\r\n<img src=\"/img/microachat/logo_shuttle_SB83G5.gif\" border=0><br>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:12px;\">Les derni\350res technologies INTEL dans un nouveau design pour ce shuttle haut de gamme, pour un prix abordable.<br></font>\r\n<center><a href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/sb83g5/?fabriquant=1&page=1&tri=titre\"><img src=\"/img/microachat/mea_shuttle_SB83G5.gif\" border=0 vspace=5></a><br></center>\r\n<center>\r\n<font face=arial,helvetica size=2 color=#CC0000 style=\"font-size:13px;\"><b>\340 partir de</b><br>\r\n<div style=\"border:solid 2px #CC0000;width:100px;background-color:#FFCC00;\"><b>415 \200</b></div>\r\n</center>\r\n</div>\r\n</td>\r\n</tr>\r\n<tr>\r\n<td align=center><font face=arial,helvetica size=1 color=#FFFFFF style=\"font-size:11px;\">publicit\351</a></font></td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_BonPlan --> \t</td>\r\n\t<td width=\"15\"><img src=\"/img/dot.gif\" width=\"15\"></td>\r\n\t<td width=\"50%\" valign=\"top\">\r\n\t<!-- DEBUT MicroAchat MA_MeillPrixAct //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=145 height=1><br>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=18><br>\r\n<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<FORM name=\"prix\" action=\"http://www.micro-achat.01net.com/guide-produits/recherche.php\" method=\"post\">\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/ban/Ban_v4_MeillPrix_MA.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t\t<td width=143>\r\n\t\t<table width=143 cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=6><img src=\"http://www.01net.com/img/dot.gif\" width=6 height=1></td>\r\n\t\t\t\t<td valign=top><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=15><br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<img src=\"http://www.01net.com/img/ban/Ban_MA_trouv_ordi.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/desktops/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Desktops</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/portables/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Portables</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/mini-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Mini-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/pda---tablets-pc/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Pda / Tablets-PC</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/apple/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">Apple</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/MA/fleche_rouge_maigre.gif\"><a style=\"font-size: 10px; text-decoration:none;\" href=\"http://micro-achat.01net.com/guide-produits/ordinateurs/gps/\"><font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\">GPS</a><br></font>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=20><br>\r\n\t\t\t\t\t\t\t\t<table width=* cellspacing=0 cellpadding=0 border=0>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td><input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"width:130px;font:12px;\" value=\" recherche directe\" onFocus=\"javascript:document.prix.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=9><br>\r\n\t\t\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1><input type=\"image\" src=\"/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\"></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t\t<td width=1 bgcolor=#FFCC00><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td width=145 colspan=3><img src=\"http://www.01net.com/img/v4/MA/base_meillPrix.gif\"></td>\r\n\t\t</FORM>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_MeillPrixAct //--> \t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n<!-- /MA_BP_MP --> <!-- - ZONE H2 -->\r\n<!-- -ZONE_Hn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- +ZONE_Tn -->\r\n<!-- + ZONE T0 -->\r\n <td valign=\"top\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n<tr>\r\n<td width=305><img src=\"http://www.01net.com/img/ban/Ban_v4_DernNews_MA.gif\"><br><img src=\"http://www.01net.com/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n</tr>\r\n<tr>\r\n<td bgcolor=\"#FEF9E0\">\r\n\t<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255149.html\" style=\"color:#000000;text-decoration:none;\">Toshiba consacre deux gammes de machines au multim\351dia</a></b><br>\r\n\t<font color=\"#000000\">Equipement haut de gamme et Windows Media Center sont au menu de ces portables \340 vocation multim\351dia.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Ordinateur <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254686.html\" style=\"color:#000000;text-decoration:none;\">Arriv\351e d\'un Power Mac G5 d\'entr\351e de gamme</a></b><br>\r\n\t<font color=\"#000000\">La firme \340 la pomme propose une station de travail \351volutive et relativement abordable.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>PC <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254549.html\" style=\"color:#000000;text-decoration:none;\">Alienware propose deux machines au look \351trange</a></b><br>\r\n\t<font color=\"#000000\">Aurora et Area 51 sont deux gammes d\'ordinateurs enti\350rement configurables.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t<tr>\r\n\t<td><div style=\"padding:2px;width:100%;\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#CC0000\" style=\"font-size:11px;\"><b>Portable <img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/254501.html\" style=\"color:#000000;text-decoration:none;\">Trois nouveaux iBook G4 chez Apple</a></b><br>\r\n\t<font color=\"#000000\">Chez Apple, les portables gagnent en vitesse et communiquent sans fil en standard.<br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=4><br></font></td>\r\n\t</tr>\r\n\t\t\t\t\t<tr>\r\n\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td align=\"right\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4365.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les news</font></a>\r\n\t\t\t</td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n</td> <!-- - ZONE T0 -->\r\n<!-- + ZONE T1 -->\r\n<!-- Ma_derpromo -->\r\n <td valign=\"top\">\r\n<img src=\"/img/dot.gif\" height=13><br>\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td bgcolor=\"#ffffff\"><img src=\"/img/v4/MA/v4-lespromos-mha.gif\"><br><img src=\"/img/v4/MA/v4-tiret-hauts-mha.gif\"></td>\r\n</tr>\r\n</table>\r\n<!-- DEBUT MODELE D\'AFFICHAGE POUR LES n PREMIERS ARTICLES //-->\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255806.html\" class=\"nodeco\"><img src=\"/images/67462.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255806.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Asus A3N15-C Pro</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable autonome et puissant gr\342ce \340 la technologie Intel Centrino.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1170 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255688.html\" class=\"nodeco\"><img src=\"/images/67381.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255688.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>Soltek EQ3702A Miroir</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Ce mini PC est une solution int\351ressante pour les utilisateurs poss\351dant d\351j\340 un \351cran.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>559 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td colspan=\"5\"><img src=\"/img/dot.gif\" width=\"9\"></td>\r\n</tr>\r\n<tr>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"42\" valign=\"top\">\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"/article/255513.html\" class=\"nodeco\"><img src=\"/images/67319.jpg\" border=0 hspace=0 vspace=0 width=\"42\" height=\"42\"></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t</td>\r\n<td width=\"16\"><img src=\"/img/dot.gif\" width=\"16\"></td>\r\n<td width=\"*\" valign=\"top\"><A HREF=\"/article/255513.html\" class=\"nodeco\"><font face=\"arial,helvetica\" size=2 color=\"#000000\" style=\"font-size:11px;\"><b>IBM ThinkPad R51</b></a><br>\r\n <img src=\"/img/v4/flechefine_fondtransp.gif\">Voici un portable complet et pourtant relativement l\351ger.<br></font></td>\r\n</tr>\r\n<tr>\r\n<td colspan=\"5\" align=\"right\">\r\n\t<table width=\"80\" border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t<td width=\"76\" align=\"center\" bgcolor=\"#CC0000\">\r\n\t<font face=\"arial,helvetica\" size=2 color=\"#ffffff\" style=\"font-size:11px;\"><b>1299 \200</b></font></td>\r\n\t<td><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t<tr>\r\n\t<td colspan=\"3\"><img src=\"/img/dot.gif\" width=2></td>\r\n\t</tr>\r\n\t</table>\r\n</td>\r\n</tr>\r\n</table>\r\n\t\t\t\t<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"305\" bgcolor=\"#E9EDFC\">\r\n<tr>\r\n<td><img src=\"http://www.01net.com/img/dot.gif\" height=10></td>\r\n</tr>\r\n<tr>\r\n<td background=\"/img/v4/MA/v4-sep-red-mha.gif\"><img src=\"/img/dot.gif\" height=1></td>\r\n</tr>\r\n<tr>\r\n<td align=\"right\" valign=\"top\">\r\n\t\t\t\t<A HREF=\"http://microachat.01net.com/rubrique/4366.html\" style=\"text-decoration:none;\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 10px;\">> toutes les promos</font></a>\r\n\t\t</td>\r\n</tr>\r\n</table>\r\n</td>\r\n<!-- /Ma_derpromo --> <!-- - ZONE T1 -->\r\n<!-- + ZONE T2 -->\r\n<!-- - ZONE T2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE T3 -->\r\n<!-- DEBUT MicroAchat MA_PubG -->\r\n<td valign=top align=center>\r\n<table border=0 width=320 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45590/[timestamp]?\" target=_blank><img src=\"/img/microachat/Bandeau_FX6021.jpg\" border=0></a></td>\r\n\t\t<td><img src=\"/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubG --> <!-- - ZONE T3 -->\r\n<!-- + ZONE T4 -->\r\n<!-- DEBUT MicroAchat MA_PubD -->\r\n<td valign=top align=center>\r\n<table border=0 width=305 cellpadding=0 cellspacing=0>\r\n\t<tr>\r\n\t\t<td width=305><img src=\"/img/dot.gif\" width=1 height=12><br><a href=\"http://www.smartadserver.com/call/cliccommand/45591/[timestamp]?\" target=_blank><img src=\"/img/microachat/twc_305x125.jpg\" border=0></a></td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_PubD --> <!-- - ZONE T4 -->\r\n<!-- + ZONE T5 -->\r\n<!-- - ZONE T5 -->\r\n<!-- -ZONE_Tn -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n\t\t\t<td valign=top>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n<!-- +ZONE_gn -->\r\n<!-- + ZONE g0 -->\r\n<!-- - ZONE g0 -->\r\n<!-- + ZONE g1 -->\r\n<!-- - ZONE g1 -->\r\n<!-- + ZONE g2 -->\r\n<!-- - ZONE g2 -->\r\n<!-- + ZONE g3 -->\r\n<!-- - ZONE g3 -->\r\n<!-- + ZONE g4 -->\r\n<!-- - ZONE g4 -->\r\n<!-- + ZONE g5 -->\r\n<!-- - ZONE g5 -->\r\n<!-- + ZONE g6 -->\r\n<!-- - ZONE g6 -->\r\n<!-- + ZONE g7 -->\r\n<!-- - ZONE g7 -->\r\n<!-- + ZONE g8 -->\r\n<!-- - ZONE g8 -->\r\n<!-- + ZONE g9 -->\r\n<!-- - ZONE g9 -->\r\n<!-- -ZONE_gn -->\r\n\t\t\t</table>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=*>\r\n\t\t\t\t<tr>\r\n<!-- +ZONE_Mn -->\r\n<!-- + ZONE M0 -->\r\n<!-- modele Ma_GuideAch //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_GuideAchat_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t<!-- ****DEBUT EXTRACTION OBJET XML *********** //-->\r\n<!-- ****FIN EXTRACTION OBJET XML *********** //-->\r\n<center>\r\n<!--debut insertion image //-->\r\n\t\t\t\t\t \t \t\t\t\t\t\t\t\t\t\t\t\t\t<A HREF=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><img src=\"/images/67088.jpg.res_121-111.jpg\" border=0 hspace=0 vspace=0></a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t \t \t<!-- fin insertion image //-->\r\n</center>\r\n<div style=\"padding:5px;\">\r\n<a href=\"http://microachat.01net.com/article/254561.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\"><b>Les graveurs de DVD</b><br></font></a>\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Quel graveur choisir ? Quel type de format ? Quelle vitesse ? Double couche ou simple couche ? Voici tout ce qu\'il faut savoir pour faire le bon choix.</font></div>\r\n\t\t\t\t\t\t</div>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M0 -->\r\n<!-- + ZONE M1 -->\r\n<!-- modele Ma_DirectLab //-->\r\n <td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t<tr>\r\n\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_DirectLab_MA.gif\" vspace=1></td>\r\n\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<div style=\"border:solid 1px #FFCC00;width:100%\">\r\n\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255744.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Kodak EasyShare Printer Dock Plus :</b>\r\n\t\t\t\t\t\tvos photos 10 x 15 cm en 60 secondes</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255780.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>3DMark05 :</b>\r\n\t\t\t\t\t\tun labo 3D \340 domicile</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255691.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>DVDInfoPro 2.6</b>\r\n\t\t\t\t\t\treconna\356t CD et DVD</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255722.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">\t\t\t\t\t\t\t<b>Scaleo PA D3008, de Fujitsu-Siemens :</b>\r\n\t\t\t\t\t\tune impression d\'inachev\351</font></a></div>\r\n\t\t\t\t<div style=\"padding:4px;\">\r\n<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://microachat.01net.com/article/255514.html\" style=\"text-decoration:none;color:#000000;\"><font face=arial,helvetica size=2 color=#000000 style=\"font-size:12px;\">Carbon 5 Go : 2 500 chansons dans le creux de la main</font></a></div>\r\n\t\t\t</div></td>\r\n\t</tr>\r\n</table>\r\n</td> <!-- - ZONE M1 -->\r\n<!-- + ZONE M2 -->\r\n<!-- DEBUT MicroAchat MA_AnnTelec -->\r\n<td valign=top>\r\n<script type=\"text/javascript\">\r\nfunction regionChange()\r\n{\r\ndocument.selection.departement.options.length=0;\r\nswitch(document.selection.region.value)\r\n\t{\r\n\t\tcase \"aucun\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Nord-Pas-de-Calais\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pas-de-Calais\", \"Pas-de-Calais\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nord\", \"Nord\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Haute-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure\", \"Eure\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Maritime\", \"Seine-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Basse-Normandie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Manche\", \"Manche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Calvados\", \"Calvados\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Orne\", \"Orne\");\r\n\t\tbreak;\r\n\t\tcase \"Picardie\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Somme\", \"Somme\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Oise\", \"Oise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aisne\", \"Aisne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bretagne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Finistere\", \"Finistere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cotes-dArmor\", \"Cotes-dArmor\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Morbihan\", \"Morbihan\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ille-et-Vilaine\", \"Ille-et-Vilaine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Pays-de-Loire\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire-Atlantique\", \"Loire-Atlantique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vendee\", \"Vendee\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Maine-et-Loire\", \"Maine-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayenne\", \"Mayenne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Sarthe\", \"Sarthe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Centre\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Eure-et-Loir\", \"Eure-et-Loir\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loiret\", \"Loiret\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loir-et-Cher\", \"Loir-et-Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre-et-Loire\", \"Indre-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Indre\", \"Indre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cher\", \"Cher\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Ile-de-France\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-dOise\", \"Val-dOise\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yvelines\", \"Yvelines\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Essonne\", \"Essonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-et-Marne\", \"Seine-et-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hauts-de-Seine\", \"Hauts-de-Seine\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Seine-Saint-Denis\", \"Seine-Saint-Denis\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Val-de-Marne\", \"Val-de-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Paris\", \"Paris\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Champagnes-Ardennes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardennes\", \"Ardennes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Marne\", \"Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aube\", \"Aube\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Marne\", \"Haute-Marne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Lorraine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vosges\", \"Vosges\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meurthe-et-Moselle\", \"Meurthe-et-Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Meuse\", \"Meuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Moselle\", \"Moselle\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Alsace\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bas-Rhin\", \"Bas-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haut-Rhin\", \"Haut-Rhin\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Franche-Compte\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Jura\", \"Jura\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Doubs\", \"Doubs\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Saone\", \"Haute-Saone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Territoire-de-Belfort\", \"Territoire-de-Belfort\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Bourgogne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Yonne\", \"Yonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Nievre\", \"Nievre\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cote-dOr\", \"Cote-dOr\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Saone-et-Loire\", \"Saone-et-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Poitou-Charentes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Deux-Sevres\", \"Deux-Sevres\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente-Maritime\", \"Charente-Maritime\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Charente\", \"Charente\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vienne\", \"Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Limousin\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Vienne\", \"Haute-Vienne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Correze\", \"Correze\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Creuse\", \"Creuse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Auvergne\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Allier\", \"Allier\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Puy-de-Dome\", \"Puy-de-Dome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Cantal\", \"Cantal\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Loire\", \"Haute-Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Rhone-Alpes\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Loire\", \"Loire\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Rhone\", \"Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ain\", \"Ain\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ardeche\", \"Ardeche\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Drome\", \"Drome\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Isere\", \"Isere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Savoie\", \"Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Savoie\", \"Haute-Savoie\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Aquitaine\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gironde\", \"Gironde\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Landes\", \"Landes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Atlantiques\", \"Pyrenees-Atlantiques\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot-et-Garonne\", \"Lot-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Dordogne\", \"Dordogne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Midi-Pyrenees\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lot\", \"Lot\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn-et-Garonne\", \"Tarn-et-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gers\", \"Gers\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Pyrenees\", \"Hautes-Pyrenees\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Garonne\", \"Haute-Garonne\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Ariege\", \"Ariege\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Tarn\", \"Tarn\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aveyron\", \"Aveyron\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Languedoc-Roussillon\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Pyrenees-Orientales\", \"Pyrenees-Orientales\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Aude\", \"Aude\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Herault\", \"Herault\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Gard\", \"Gard\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Lozere\", \"Lozere\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Provence-Alpes-Cote-dazur\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Bouches-du-Rhone\", \"Bouches-du-Rhone\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Vaucluse\", \"Vaucluse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-de-haute-Provence\", \"Alpes-de-haute-Provence\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Hautes-Alpes\", \"Hautes-Alpes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Var\", \"Var\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Alpes-Maritimes\", \"Alpes-Maritimes\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"Corse\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Corse-du-Sud\", \"Corse-du-Sud\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Haute-Corse\", \"Haute-Corse\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t\tcase \"DomTom\" :\r\n\t\t\tvar o=new Option(\"D\351partement\", \"aucun\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guadeloupe\", \"Guadeloupe\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Guyane\", \"Guyane\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"La-Reunion\", \"La-Reunion\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Martinique\", \"Martinique\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"Mayotte\", \"Mayotte\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\t\tvar o=new Option(\"St-Pierre-et-Miquelon\", \"St-Pierre-et-Miquelon\");\r\n\t\t\tdocument.selection.departement.options[document.selection.departement.options.length]=o;\r\n\t\tbreak;\r\n\t}\r\n}\r\nfunction deptChange()\r\n{\r\nif (document.selection.departement.value == \'Paris\')\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'inline\';\r\nelse\r\n\tdocument.getElementById(\'arrondissement\').style.display = \'none\';\r\n}\r\n</script>\r\n<table width=305 cellspacing=0 cellpadding=0 border=0>\r\n\t<tr>\r\n\t\t<td valign=top>\r\n\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n\t\t<table border=0 cellpadding=0 cellspacing=0 width=160>\r\n\t\t\t<tr>\r\n\t\t\t\t<td width=145><img src=\"http://www.01net.com/img/ban/Ban_v4_AnnuaiRev_MA.gif\" vspace=1></td>\r\n\t\t\t\t<td rowspan=2 width=15><img src=\"http://www.01net.com/img/dot.gif\" width=15 height=1></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr><form action=\"http://micro-achat.01net.com/annuaire/recherche.php\" method=\"post\" name=\"selection\">\r\n\t\t\t\t<td bgcolor=#FFFFDD>\r\n\t\t\t\t<div style=\"border:solid 1px #FFCC00;width:100%\"><div style=\"padding:2px;\"><img src=\"http://www.01net.com/img/v4/MA/carte_revend.gif\"><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Choisir une r\351gion</b><br></font>\r\n<select name=\"region\" onChange=\"regionChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n<option value=\"Nord-Pas-de-Calais\">Nord-Pas-de-Calais</option>\r\n<option value=\"Haute-Normandie\">Haute-Normandie</option>\r\n<option value=\"Basse-Normandie\">Basse-Normandie</option>\r\n<option value=\"Picardie\">Picardie</option>\r\n<option value=\"Bretagne\">Bretagne</option>\r\n<option value=\"Pays-de-Loire\">Pays-de-Loire</option>\r\n<option value=\"Centre\">Centre</option>\r\n<option value=\"Ile-de-France\">Ile-de-France</option>\r\n<option value=\"Champagnes-Ardennes\">Champagne ardennes</option>\r\n<option value=\"Lorraine\">Lorraine</option>\r\n<option value=\"Alsace\">Alsace</option>\r\n<option value=\"Franche-Compte\">Franche-Compte</option>\r\n<option value=\"Bourgogne\">Bourgogne</option>\r\n<option value=\"Poitou-Charentes\">Poitou-Charentes</option>\r\n<option value=\"Limousin\">Limousin</option>\r\n<option value=\"Auvergne\">Auvergne</option>\r\n<option value=\"Rhone-Alpes\">Rhone-Alpes</option>\r\n<option value=\"Aquitaine\">Aquitaine</option>\r\n<option value=\"Midi-Pyrenees\">Midi-Pyrenees</option>\r\n<option value=\"Languedoc-Roussillon\">Languedoc roussillon</option>\r\n<option value=\"Provence-Alpes-Cote-dazur\">PACA</option>\r\n<option value=\"Corse\">Corse</option>\r\n<option value=\"DomTom\">DomTom</option>\r\n</select>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un d\351partement</b><br></font>\r\n<select name=\"departement\" onChange=\"deptChange()\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"aucun\">-------------</option>\r\n</select>\r\n<div id=\"arrondissement\" style=\"display : none;\">\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=5><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Un arrondissement</b><br></font>\r\n<select name=\"arrondissement\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;\">\r\n<option value=\"0\">-------------</option>\r\n<option value=\"1\">I</option>\r\n<option value=\"2\">II</option>\r\n<option value=\"3\">III</option>\r\n<option value=\"4\">IV</option>\r\n<option value=\"5\">V</option>\r\n<option value=\"6\">VI</option>\r\n<option value=\"7\">VII</option>\r\n<option value=\"8\">VIII</option>\r\n<option value=\"9\">IX</option>\r\n<option value=\"10\">X</option>\r\n<option value=\"11\">XI</option>\r\n<option value=\"12\">XII</option>\r\n<option value=\"13\">XIII</option>\r\n<option value=\"14\">XIV</option>\r\n<option value=\"15\">XV</option>\r\n<option value=\"16\">XVI</option>\r\n<option value=\"17\">XVII</option>\r\n<option value=\"18\">XVIII</option>\r\n<option value=\"19\">XIX</option>\r\n<option value=\"20\">XX</option>\r\n</select>\r\n</div>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=10><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche directe</b><br></font>\r\n\t\t\t\t<font face=\"Arial\" size=1 color=#000000 style=\"font-size: 10px; text-decoration:none;\"><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>rechercher une ville<br><img src=\"http://www.01net.com/img/dot.gif\" width=8 height=1>et/ou une boutique<br></font>\r\n\t\t\t\t<input type=\"text\" name=\"recherchedirecte\" size=\"14\" style=\"display : block; font-size:9px;font-variant:arial,helvetica,sans-serif;width:130px;\" value=\"\" onFocus=\"javascript:document.selection.recherchedirecte.value=\'\'\"><br><img src=\"http://www.01net.com/img/dot.gif\" width=1 height=3><br>\r\n\t\t\t\t<img src=\"http://www.01net.com/img/dot.gif\" width=28 height=1> <input type=\"image\" src=\"http://www.01net.com/img/v4/MA/ok_bloc_recher_MA.gif\" border=\"0\">\r\n\t\t\t\t<table height=23 width=135 cellspacing=0 cellpadding=0 border=0 bgcolor=#FFEE77>\r\n\t\t\t\t\t<tr>\r\n\t\t\t\t\t\t<td bgcolor=#FFEE77 valign=middle align=center><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://micro-achat.01net.com/annuaire/\"><font face=\"Arial\" size=1 color=#CC0000 style=\"font-size: 11px; text-decoration:none;\"><b>Recherche avanc\351e</b></font></a></td>\r\n\t\t\t\t\t</tr>\r\n\t\t\t\t</table>\r\n\t\t\t\t</div>\r\n\t\t\t\t</div>\r\n\t\t\t\t</td>\r\n\t\t\t</tr></form>\r\n\t\t</table>\r\n\t\t</td>\r\n<!-- DEBUT MicroAchat MA_Telecharg //-->\r\n<td valign=top>\r\n<img src=\"http://www.01net.com/img/dot.gif\" width=1 height=13><br>\r\n<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/v4/MA/Ban_v4_MA_telec.gif\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t<td>\r\n\t\t<table width=\"145\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"#DFECF6\">\r\n\t\t\t<tr>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"></td>\r\n\t\t\t\t<td rowspan=\"17\"><img src=\"http://www.01net.com/img/dot.gif\" width=\"6\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Bureautique\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Bureautique</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Traducteur, organiseur...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Multimedia\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Multim\351dia</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Photo, audio, vid\351o...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Utilitaire\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Utilitaires</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Antivirus, pilotes, gravure...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Personnaliser\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Personnaliser son PC</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Ecrans de veille, th\350mes...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Programmation\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>D\351veloppement</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Cr\351ation de logiciels, BDD...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Jeux\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Jeux</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Action, simulation...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Internet\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Internet</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Utilitaires, email, FTP...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br><img src=\"http://www.01net.com/img/v4/flechefine_fondtransp.gif\"><a href=\"http://telecharger.01net.com/windows/Loisirs\" class=\"nodeco\"><font face=\"Arial,Helvetica\" size=\"2\" color=\"#124478\" style=\"font-size: 12px;\"><b>Loisirs</b></a><br></font>\r\n\t\t\t\t<font face=\"Arial,Helvetica\" size=\"2\" color=\"#000000\" style=\"font-size: 10px;\">Humour, culture...<br></font><img src=\"http://www.01net.com/img/dot.gif\" height=\"3\"><br>\r\n\t\t\t\t</td>\r\n\t\t\t</tr>\r\n\t\t\t<tr>\r\n\t\t\t\t<td background=\"http://www.01net.com/img/v4/MA/v4-sep-blue-mha.gif\"><img src=\"http://www.01net.com/img/dot.gif\" height=\"1\"></td>\r\n\t\t\t</tr>\r\n\t\t</table>\r\n\t\t</td>\r\n\t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_Telecharg //--> \t</tr>\r\n</table>\r\n</td>\r\n<!-- FIN MicroAchat MA_AnnTelec --> <!-- - ZONE M2 -->\r\n\t\t</tr>\r\n\t\t</table>\r\n\t\t<table width=100% cellspacing=0 cellpadding=0 border=0>\r\n\t\t<tr>\r\n<!-- + ZONE M3 -->\r\n<!-- - ZONE M3 -->\r\n<!-- + ZONE M4 -->\r\n<!-- - ZONE M4 -->\r\n<!-- + ZONE M5 -->\r\n<!-- - 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ZONE d6 -->\r\n<!-- + ZONE d7 -->\r\n<!-- - ZONE d7 -->\r\n<!-- + ZONE d8 -->\r\n<!-- - ZONE d8 -->\r\n<!-- + ZONE d9 -->\r\n<!-- - ZONE d9 -->\r\n<!-- -ZONE_dn -->\r\n\t\t\t\t</tr>\r\n\t\t\t</table>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t</table>\r\n<!-- FIN WORK -->\r\n\t\t</td>\r\n<!-- *********************************************************************FIN VENTRE********************************************************************************************************************************************** //-->\r\n\t\t<td rowspan=2 valign=top width=23 background=\"http://www.01net.com/img/v4/sep_verticale.gif\"><img src=\"http://www.01net.com/img/dot.gif\" width=23 height=1><br></td>\r\n\t</tr>\r\n\t<tr>\r\n\t\t\t<td colspan=2>\r\n\t\t\t<table border=0 cellpadding=0 cellspacing=0 width=100%>\r\n<!-- +ZONE_Bn -->\r\n<!-- + ZONE B0 -->\r\n<!-- - ZONE B0 -->\r\n<!-- + ZONE B1 -->\r\n<tr><!-- ********** DEBUT BLOC Home NosJournauxV4 //-->\r\n<td valign=top bgcolor=#FFFFFF>\r\n<img 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-\r
-\r
-The Project Gutenberg Etext of LOC WORKSHOP ON ELECTRONIC TEXTS\r
-\r
-\r
-\r
-\r
- WORKSHOP ON ELECTRONIC TEXTS\r
-\r
- PROCEEDINGS\r
-\r
-\r
-\r
- Edited by James Daly\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
- 9-10 June 1992\r
-\r
-\r
- Library of Congress\r
- Washington, D.C.\r
-\r
-\r
-\r
- Supported by a Grant from the David and Lucile Packard Foundation\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- TABLE OF CONTENTS\r
-\r
-\r
-Acknowledgements\r
-\r
-Introduction\r
-\r
-Proceedings\r
- Welcome\r
- Prosser Gifford and Carl Fleischhauer\r
-\r
- Session I. Content in a New Form: Who Will Use It and What Will They Do?\r
- James Daly (Moderator)\r
- Avra Michelson, Overview\r
- Susan H. Veccia, User Evaluation\r
- Joanne Freeman, Beyond the Scholar\r
- Discussion\r
-\r
- Session II. Show and Tell\r
- Jacqueline Hess (Moderator)\r
- Elli Mylonas, Perseus Project\r
- Discussion\r
- Eric M. Calaluca, Patrologia Latina Database\r
- Carl Fleischhauer and Ricky Erway, American Memory\r
- Discussion\r
- Dorothy Twohig, The Papers of George Washington\r
- Discussion\r
- Maria L. Lebron, The Online Journal of Current Clinical Trials\r
- Discussion\r
- Lynne K. Personius, Cornell mathematics books\r
- Discussion\r
-\r
- Session III. Distribution, Networks, and Networking: \r
- Options for Dissemination\r
- Robert G. Zich (Moderator)\r
- Clifford A. Lynch\r
- Discussion\r
- Howard Besser\r
- Discussion\r
- Ronald L. Larsen\r
- Edwin B. Brownrigg\r
- Discussion\r
-\r
- Session IV. Image Capture, Text Capture, Overview of Text and\r
- Image Storage Formats\r
- William L. Hooton (Moderator)\r
- A) Principal Methods for Image Capture of Text: \r
- direct scanning, use of microform\r
- Anne R. Kenney\r
- Pamela Q.J. Andre\r
- Judith A. Zidar\r
- Donald J. Waters\r
- Discussion\r
- B) Special Problems: bound volumes, conservation,\r
- reproducing printed halftones\r
- George Thoma\r
- Carl Fleischhauer\r
- Discussion\r
- C) Image Standards and Implications for Preservation\r
- Jean Baronas\r
- Patricia Battin\r
- Discussion\r
- D) Text Conversion: OCR vs. rekeying, standards of accuracy\r
- and use of imperfect texts, service bureaus\r
- Michael Lesk\r
- Ricky Erway\r
- Judith A. Zidar\r
- Discussion\r
-\r
- Session V. Approaches to Preparing Electronic Texts\r
- Susan Hockey (Moderator)\r
- Stuart Weibel\r
- Discussion\r
- C.M. Sperberg-McQueen\r
- Discussion\r
- Eric M. Calaluca\r
- Discussion\r
-\r
- Session VI. Copyright Issues\r
- Marybeth Peters\r
-\r
- Session VII. Conclusion\r
- Prosser Gifford (Moderator)\r
- General discussion\r
-\r
-Appendix I: Program\r
-\r
-Appendix II: Abstracts\r
-\r
-Appendix III: Directory of Participants\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- Acknowledgements\r
-\r
-I would like to thank Carl Fleischhauer and Prosser Gifford for the\r
-opportunity to learn about areas of human activity unknown to me a scant\r
-ten months ago, and the David and Lucile Packard Foundation for\r
-supporting that opportunity. The help given by others is acknowledged on\r
-a separate page.\r
-\r
- 19 October 1992\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- INTRODUCTION\r
-\r
-The Workshop on Electronic Texts (1) drew together representatives of\r
-various projects and interest groups to compare ideas, beliefs,\r
-experiences, and, in particular, methods of placing and presenting\r
-historical textual materials in computerized form. Most attendees gained\r
-much in insight and outlook from the event. But the assembly did not\r
-form a new nation, or, to put it another way, the diversity of projects\r
-and interests was too great to draw the representatives into a cohesive,\r
-action-oriented body.(2)\r
-\r
-Everyone attending the Workshop shared an interest in preserving and\r
-providing access to historical texts. But within this broad field the\r
-attendees represented a variety of formal, informal, figurative, and\r
-literal groups, with many individuals belonging to more than one. These\r
-groups may be defined roughly according to the following topics or\r
-activities:\r
-\r
-* Imaging\r
-* Searchable coded texts\r
-* National and international computer networks\r
-* CD-ROM production and dissemination\r
-* Methods and technology for converting older paper materials into\r
-electronic form\r
-* Study of the use of digital materials by scholars and others\r
-\r
-This summary is arranged thematically and does not follow the actual\r
-sequence of presentations.\r
-\r
-NOTES:\r
- (1) In this document, the phrase electronic text is used to mean\r
- any computerized reproduction or version of a document, book,\r
- article, or manuscript (including images), and not merely a machine-\r
- readable or machine-searchable text.\r
-\r
- (2) The Workshop was held at the Library of Congress on 9-10 June\r
- 1992, with funding from the David and Lucile Packard Foundation. \r
- The document that follows represents a summary of the presentations\r
- made at the Workshop and was compiled by James DALY. This\r
- introduction was written by DALY and Carl FLEISCHHAUER.\r
-\r
-\r
-PRESERVATION AND IMAGING\r
-\r
-Preservation, as that term is used by archivists,(3) was most explicitly\r
-discussed in the context of imaging. Anne KENNEY and Lynne PERSONIUS\r
-explained how the concept of a faithful copy and the user-friendliness of\r
-the traditional book have guided their project at Cornell University.(4) \r
-Although interested in computerized dissemination, participants in the\r
-Cornell project are creating digital image sets of older books in the\r
-public domain as a source for a fresh paper facsimile or, in a future\r
-phase, microfilm. The books returned to the library shelves are\r
-high-quality and useful replacements on acid-free paper that should last\r
-a long time. To date, the Cornell project has placed little or no\r
-emphasis on creating searchable texts; one would not be surprised to find\r
-that the project participants view such texts as new editions, and thus\r
-not as faithful reproductions. \r
-\r
-In her talk on preservation, Patricia BATTIN struck an ecumenical and\r
-flexible note as she endorsed the creation and dissemination of a variety\r
-of types of digital copies. Do not be too narrow in defining what counts\r
-as a preservation element, BATTIN counseled; for the present, at least,\r
-digital copies made with preservation in mind cannot be as narrowly\r
-standardized as, say, microfilm copies with the same objective. Setting\r
-standards precipitously can inhibit creativity, but delay can result in\r
-chaos, she advised.\r
-\r
-In part, BATTIN's position reflected the unsettled nature of image-format\r
-standards, and attendees could hear echoes of this unsettledness in the\r
-comments of various speakers. For example, Jean BARONAS reviewed the\r
-status of several formal standards moving through committees of experts;\r
-and Clifford LYNCH encouraged the use of a new guideline for transmitting\r
-document images on Internet. Testimony from participants in the National\r
-Agricultural Library's (NAL) Text Digitization Program and LC's American\r
-Memory project highlighted some of the challenges to the actual creation\r
-or interchange of images, including difficulties in converting\r
-preservation microfilm to digital form. Donald WATERS reported on the\r
-progress of a master plan for a project at Yale University to convert\r
-books on microfilm to digital image sets, Project Open Book (POB).\r
-\r
-The Workshop offered rather less of an imaging practicum than planned,\r
-but "how-to" hints emerge at various points, for example, throughout\r
-KENNEY's presentation and in the discussion of arcana such as\r
-thresholding and dithering offered by George THOMA and FLEISCHHAUER.\r
-\r
-NOTES:\r
- (3) Although there is a sense in which any reproductions of\r
- historical materials preserve the human record, specialists in the\r
- field have developed particular guidelines for the creation of\r
- acceptable preservation copies.\r
-\r
- (4) Titles and affiliations of presenters are given at the\r
- beginning of their respective talks and in the Directory of\r
- Participants (Appendix III).\r
-\r
-\r
-THE MACHINE-READABLE TEXT: MARKUP AND USE\r
-\r
-The sections of the Workshop that dealt with machine-readable text tended\r
-to be more concerned with access and use than with preservation, at least\r
-in the narrow technical sense. Michael SPERBERG-McQUEEN made a forceful\r
-presentation on the Text Encoding Initiative's (TEI) implementation of\r
-the Standard Generalized Markup Language (SGML). His ideas were echoed\r
-by Susan HOCKEY, Elli MYLONAS, and Stuart WEIBEL. While the\r
-presentations made by the TEI advocates contained no practicum, their\r
-discussion focused on the value of the finished product, what the\r
-European Community calls reusability, but what may also be termed\r
-durability. They argued that marking up--that is, coding--a text in a\r
-well-conceived way will permit it to be moved from one computer\r
-environment to another, as well as to be used by various users. Two\r
-kinds of markup were distinguished: 1) procedural markup, which\r
-describes the features of a text (e.g., dots on a page), and 2)\r
-descriptive markup, which describes the structure or elements of a\r
-document (e.g., chapters, paragraphs, and front matter).\r
-\r
-The TEI proponents emphasized the importance of texts to scholarship. \r
-They explained how heavily coded (and thus analyzed and annotated) texts\r
-can underlie research, play a role in scholarly communication, and\r
-facilitate classroom teaching. SPERBERG-McQUEEN reminded listeners that\r
-a written or printed item (e.g., a particular edition of a book) is\r
-merely a representation of the abstraction we call a text. To concern\r
-ourselves with faithfully reproducing a printed instance of the text,\r
-SPERBERG-McQUEEN argued, is to concern ourselves with the representation\r
-of a representation ("images as simulacra for the text"). The TEI proponents'\r
-interest in images tends to focus on corollary materials for use in teaching,\r
-for example, photographs of the Acropolis to accompany a Greek text.\r
-\r
-By the end of the Workshop, SPERBERG-McQUEEN confessed to having been\r
-converted to a limited extent to the view that electronic images\r
-constitute a promising alternative to microfilming; indeed, an\r
-alternative probably superior to microfilming. But he was not convinced\r
-that electronic images constitute a serious attempt to represent text in\r
-electronic form. HOCKEY and MYLONAS also conceded that their experience\r
-at the Pierce Symposium the previous week at Georgetown University and\r
-the present conference at the Library of Congress had compelled them to\r
-reevaluate their perspective on the usefulness of text as images. \r
-Attendees could see that the text and image advocates were in\r
-constructive tension, so to say.\r
-\r
-Three nonTEI presentations described approaches to preparing\r
-machine-readable text that are less rigorous and thus less expensive. In\r
-the case of the Papers of George Washington, Dorothy TWOHIG explained\r
-that the digital version will provide a not-quite-perfect rendering of\r
-the transcribed text--some 135,000 documents, available for research\r
-during the decades while the perfect or print version is completed. \r
-Members of the American Memory team and the staff of NAL's Text\r
-Digitization Program (see below) also outlined a middle ground concerning\r
-searchable texts. In the case of American Memory, contractors produce\r
-texts with about 99-percent accuracy that serve as "browse" or\r
-"reference" versions of written or printed originals. End users who need\r
-faithful copies or perfect renditions must refer to accompanying sets of\r
-digital facsimile images or consult copies of the originals in a nearby\r
-library or archive. American Memory staff argued that the high cost of\r
-producing 100-percent accurate copies would prevent LC from offering\r
-access to large parts of its collections.\r
-\r
-\r
-THE MACHINE-READABLE TEXT: METHODS OF CONVERSION\r
-\r
-Although the Workshop did not include a systematic examination of the\r
-methods for converting texts from paper (or from facsimile images) into\r
-machine-readable form, nevertheless, various speakers touched upon this\r
-matter. For example, WEIBEL reported that OCLC has experimented with a\r
-merging of multiple optical character recognition systems that will\r
-reduce errors from an unacceptable rate of 5 characters out of every\r
-l,000 to an unacceptable rate of 2 characters out of every l,000.\r
-\r
-Pamela ANDRE presented an overview of NAL's Text Digitization Program and\r
-Judith ZIDAR discussed the technical details. ZIDAR explained how NAL\r
-purchased hardware and software capable of performing optical character\r
-recognition (OCR) and text conversion and used its own staff to convert\r
-texts. The process, ZIDAR said, required extensive editing and project\r
-staff found themselves considering alternatives, including rekeying\r
-and/or creating abstracts or summaries of texts. NAL reckoned costs at\r
-$7 per page. By way of contrast, Ricky ERWAY explained that American\r
-Memory had decided from the start to contract out conversion to external\r
-service bureaus. The criteria used to select these contractors were cost\r
-and quality of results, as opposed to methods of conversion. ERWAY noted\r
-that historical documents or books often do not lend themselves to OCR. \r
-Bound materials represent a special problem. In her experience, quality\r
-control--inspecting incoming materials, counting errors in samples--posed\r
-the most time-consuming aspect of contracting out conversion. ERWAY\r
-reckoned American Memory's costs at $4 per page, but cautioned that fewer\r
-cost-elements had been included than in NAL's figure.\r
-\r
-\r
-OPTIONS FOR DISSEMINATION\r
-\r
-The topic of dissemination proper emerged at various points during the\r
-Workshop. At the session devoted to national and international computer\r
-networks, LYNCH, Howard BESSER, Ronald LARSEN, and Edwin BROWNRIGG\r
-highlighted the virtues of Internet today and of the network that will\r
-evolve from Internet. Listeners could discern in these narratives a\r
-vision of an information democracy in which millions of citizens freely\r
-find and use what they need. LYNCH noted that a lack of standards\r
-inhibits disseminating multimedia on the network, a topic also discussed\r
-by BESSER. LARSEN addressed the issues of network scalability and\r
-modularity and commented upon the difficulty of anticipating the effects\r
-of growth in orders of magnitude. BROWNRIGG talked about the ability of\r
-packet radio to provide certain links in a network without the need for\r
-wiring. However, the presenters also called attention to the\r
-shortcomings and incongruities of present-day computer networks. For\r
-example: 1) Network use is growing dramatically, but much network\r
-traffic consists of personal communication (E-mail). 2) Large bodies of\r
-information are available, but a user's ability to search across their\r
-entirety is limited. 3) There are significant resources for science and\r
-technology, but few network sources provide content in the humanities. \r
-4) Machine-readable texts are commonplace, but the capability of the\r
-system to deal with images (let alone other media formats) lags behind. \r
-A glimpse of a multimedia future for networks, however, was provided by\r
-Maria LEBRON in her overview of the Online Journal of Current Clinical\r
-Trials (OJCCT), and the process of scholarly publishing on-line. \r
-\r
-The contrasting form of the CD-ROM disk was never systematically\r
-analyzed, but attendees could glean an impression from several of the\r
-show-and-tell presentations. The Perseus and American Memory examples\r
-demonstrated recently published disks, while the descriptions of the\r
-IBYCUS version of the Papers of George Washington and Chadwyck-Healey's\r
-Patrologia Latina Database (PLD) told of disks to come. According to\r
-Eric CALALUCA, PLD's principal focus has been on converting Jacques-Paul\r
-Migne's definitive collection of Latin texts to machine-readable form. \r
-Although everyone could share the network advocates' enthusiasm for an\r
-on-line future, the possibility of rolling up one's sleeves for a session\r
-with a CD-ROM containing both textual materials and a powerful retrieval\r
-engine made the disk seem an appealing vessel indeed. The overall\r
-discussion suggested that the transition from CD-ROM to on-line networked\r
-access may prove far slower and more difficult than has been anticipated.\r
-\r
-\r
-WHO ARE THE USERS AND WHAT DO THEY DO?\r
-\r
-Although concerned with the technicalities of production, the Workshop\r
-never lost sight of the purposes and uses of electronic versions of\r
-textual materials. As noted above, those interested in imaging discussed\r
-the problematical matter of digital preservation, while the TEI proponents\r
-described how machine-readable texts can be used in research. This latter\r
-topic received thorough treatment in the paper read by Avra MICHELSON.\r
-She placed the phenomenon of electronic texts within the context of\r
-broader trends in information technology and scholarly communication.\r
-\r
-Among other things, MICHELSON described on-line conferences that\r
-represent a vigorous and important intellectual forum for certain\r
-disciplines. Internet now carries more than 700 conferences, with about\r
-80 percent of these devoted to topics in the social sciences and the\r
-humanities. Other scholars use on-line networks for "distance learning." \r
-Meanwhile, there has been a tremendous growth in end-user computing;\r
-professors today are less likely than their predecessors to ask the\r
-campus computer center to process their data. Electronic texts are one\r
-key to these sophisticated applications, MICHELSON reported, and more and\r
-more scholars in the humanities now work in an on-line environment. \r
-Toward the end of the Workshop, Michael LESK presented a corollary to\r
-MICHELSON's talk, reporting the results of an experiment that compared\r
-the work of one group of chemistry students using traditional printed\r
-texts and two groups using electronic sources. The experiment\r
-demonstrated that in the event one does not know what to read, one needs\r
-the electronic systems; the electronic systems hold no advantage at the\r
-moment if one knows what to read, but neither do they impose a penalty.\r
-\r
-DALY provided an anecdotal account of the revolutionizing impact of the\r
-new technology on his previous methods of research in the field of classics.\r
-His account, by extrapolation, served to illustrate in part the arguments\r
-made by MICHELSON concerning the positive effects of the sudden and radical\r
-transformation being wrought in the ways scholars work.\r
-\r
-Susan VECCIA and Joanne FREEMAN delineated the use of electronic\r
-materials outside the university. The most interesting aspect of their\r
-use, FREEMAN said, could be seen as a paradox: teachers in elementary\r
-and secondary schools requested access to primary source materials but,\r
-at the same time, found that "primariness" itself made these materials\r
-difficult for their students to use.\r
-\r
-\r
-OTHER TOPICS\r
-\r
-Marybeth PETERS reviewed copyright law in the United States and offered\r
-advice during a lively discussion of this subject. But uncertainty\r
-remains concerning the price of copyright in a digital medium, because a\r
-solution remains to be worked out concerning management and synthesis of\r
-copyrighted and out-of-copyright pieces of a database.\r
-\r
-As moderator of the final session of the Workshop, Prosser GIFFORD directed\r
-discussion to future courses of action and the potential role of LC in\r
-advancing them. Among the recommendations that emerged were the following:\r
-\r
- * Workshop participants should 1) begin to think about working\r
- with image material, but structure and digitize it in such a\r
- way that at a later stage it can be interpreted into text, and\r
- 2) find a common way to build text and images together so that\r
- they can be used jointly at some stage in the future, with\r
- appropriate network support, because that is how users will want\r
- to access these materials. The Library might encourage attempts\r
- to bring together people who are working on texts and images.\r
-\r
- * A network version of American Memory should be developed or\r
- consideration should be given to making the data in it\r
- available to people interested in doing network multimedia. \r
- Given the current dearth of digital data that is appealing and\r
- unencumbered by extremely complex rights problems, developing a\r
- network version of American Memory could do much to help make\r
- network multimedia a reality.\r
-\r
- * Concerning the thorny issue of electronic deposit, LC should\r
- initiate a catalytic process in terms of distributed\r
- responsibility, that is, bring together the distributed\r
- organizations and set up a study group to look at all the\r
- issues related to electronic deposit and see where we as a\r
- nation should move. For example, LC might attempt to persuade\r
- one major library in each state to deal with its state\r
- equivalent publisher, which might produce a cooperative project\r
- that would be equitably distributed around the country, and one\r
- in which LC would be dealing with a minimal number of publishers\r
- and minimal copyright problems. LC must also deal with the\r
- concept of on-line publishing, determining, among other things,\r
- how serials such as OJCCT might be deposited for copyright.\r
-\r
- * Since a number of projects are planning to carry out\r
- preservation by creating digital images that will end up in\r
- on-line or near-line storage at some institution, LC might play\r
- a helpful role, at least in the near term, by accelerating how\r
- to catalog that information into the Research Library Information\r
- Network (RLIN) and then into OCLC, so that it would be accessible.\r
- This would reduce the possibility of multiple institutions digitizing\r
- the same work. \r
-\r
-\r
-CONCLUSION\r
-\r
-The Workshop was valuable because it brought together partisans from\r
-various groups and provided an occasion to compare goals and methods. \r
-The more committed partisans frequently communicate with others in their\r
-groups, but less often across group boundaries. The Workshop was also\r
-valuable to attendees--including those involved with American Memory--who\r
-came less committed to particular approaches or concepts. These\r
-attendees learned a great deal, and plan to select and employ elements of\r
-imaging, text-coding, and networked distribution that suit their\r
-respective projects and purposes.\r
-\r
-Still, reality rears its ugly head: no breakthrough has been achieved. \r
-On the imaging side, one confronts a proliferation of competing\r
-data-interchange standards and a lack of consensus on the role of digital\r
-facsimiles in preservation. In the realm of machine-readable texts, one\r
-encounters a reasonably mature standard but methodological difficulties\r
-and high costs. These latter problems, of course, represent a special\r
-impediment to the desire, as it is sometimes expressed in the popular\r
-press, "to put the [contents of the] Library of Congress on line." In\r
-the words of one participant, there was "no solution to the economic\r
-problems--the projects that are out there are surviving, but it is going\r
-to be a lot of work to transform the information industry, and so far the\r
-investment to do that is not forthcoming" (LESK, per litteras).\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- PROCEEDINGS\r
-\r
-\r
-WELCOME\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-GIFFORD * Origin of Workshop in current Librarian's desire to make LC's\r
-collections more widely available * Desiderata arising from the prospect\r
-of greater interconnectedness *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-After welcoming participants on behalf of the Library of Congress,\r
-American Memory (AM), and the National Demonstration Lab, Prosser\r
-GIFFORD, director for scholarly programs, Library of Congress, located\r
-the origin of the Workshop on Electronic Texts in a conversation he had\r
-had considerably more than a year ago with Carl FLEISCHHAUER concerning\r
-some of the issues faced by AM. On the assumption that numerous other\r
-people were asking the same questions, the decision was made to bring\r
-together as many of these people as possible to ask the same questions\r
-together. In a deeper sense, GIFFORD said, the origin of the Workshop\r
-lay in the desire of the current Librarian of Congress, James H. \r
-Billington, to make the collections of the Library, especially those\r
-offering unique or unusual testimony on aspects of the American\r
-experience, available to a much wider circle of users than those few\r
-people who can come to Washington to use them. This meant that the\r
-emphasis of AM, from the outset, has been on archival collections of the\r
-basic material, and on making these collections themselves available,\r
-rather than selected or heavily edited products.\r
-\r
-From AM's emphasis followed the questions with which the Workshop began: \r
-who will use these materials, and in what form will they wish to use\r
-them. But an even larger issue deserving mention, in GIFFORD's view, was\r
-the phenomenal growth in Internet connectivity. He expressed the hope\r
-that the prospect of greater interconnectedness than ever before would\r
-lead to: 1) much more cooperative and mutually supportive endeavors; 2)\r
-development of systems of shared and distributed responsibilities to\r
-avoid duplication and to ensure accuracy and preservation of unique\r
-materials; and 3) agreement on the necessary standards and development of\r
-the appropriate directories and indices to make navigation\r
-straightforward among the varied resources that are, and increasingly\r
-will be, available. In this connection, GIFFORD requested that\r
-participants reflect from the outset upon the sorts of outcomes they\r
-thought the Workshop might have. Did those present constitute a group\r
-with sufficient common interests to propose a next step or next steps,\r
-and if so, what might those be? They would return to these questions the\r
-following afternoon.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-FLEISCHHAUER * Core of Workshop concerns preparation and production of\r
-materials * Special challenge in conversion of textual materials *\r
-Quality versus quantity * Do the several groups represented share common\r
-interests? *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Carl FLEISCHHAUER, coordinator, American Memory, Library of Congress,\r
-emphasized that he would attempt to represent the people who perform some\r
-of the work of converting or preparing materials and that the core of\r
-the Workshop had to do with preparation and production. FLEISCHHAUER\r
-then drew a distinction between the long term, when many things would be\r
-available and connected in the ways that GIFFORD described, and the short\r
-term, in which AM not only has wrestled with the issue of what is the\r
-best course to pursue but also has faced a variety of technical\r
-challenges.\r
-\r
-FLEISCHHAUER remarked AM's endeavors to deal with a wide range of library\r
-formats, such as motion picture collections, sound-recording collections,\r
-and pictorial collections of various sorts, especially collections of\r
-photographs. In the course of these efforts, AM kept coming back to\r
-textual materials--manuscripts or rare printed matter, bound materials,\r
-etc. Text posed the greatest conversion challenge of all. Thus, the\r
-genesis of the Workshop, which reflects the problems faced by AM. These\r
-problems include physical problems. For example, those in the library\r
-and archive business deal with collections made up of fragile and rare\r
-manuscript items, bound materials, especially the notoriously brittle\r
-bound materials of the late nineteenth century. These are precious\r
-cultural artifacts, however, as well as interesting sources of\r
-information, and LC desires to retain and conserve them. AM needs to\r
-handle things without damaging them. Guillotining a book to run it\r
-through a sheet feeder must be avoided at all costs.\r
-\r
-Beyond physical problems, issues pertaining to quality arose. For\r
-example, the desire to provide users with a searchable text is affected\r
-by the question of acceptable level of accuracy. One hundred percent\r
-accuracy is tremendously expensive. On the other hand, the output of\r
-optical character recognition (OCR) can be tremendously inaccurate. \r
-Although AM has attempted to find a middle ground, uncertainty persists\r
-as to whether or not it has discovered the right solution.\r
-\r
-Questions of quality arose concerning images as well. FLEISCHHAUER\r
-contrasted the extremely high level of quality of the digital images in\r
-the Cornell Xerox Project with AM's efforts to provide a browse-quality\r
-or access-quality image, as opposed to an archival or preservation image. \r
-FLEISCHHAUER therefore welcomed the opportunity to compare notes.\r
-\r
-FLEISCHHAUER observed in passing that conversations he had had about\r
-networks have begun to signal that for various forms of media a\r
-determination may be made that there is a browse-quality item, or a\r
-distribution-and-access-quality item that may coexist in some systems\r
-with a higher quality archival item that would be inconvenient to send\r
-through the network because of its size. FLEISCHHAUER referred, of\r
-course, to images more than to searchable text.\r
-\r
-As AM considered those questions, several conceptual issues arose: ought\r
-AM occasionally to reproduce materials entirely through an image set, at\r
-other times, entirely through a text set, and in some cases, a mix? \r
-There probably would be times when the historical authenticity of an\r
-artifact would require that its image be used. An image might be\r
-desirable as a recourse for users if one could not provide 100-percent\r
-accurate text. Again, AM wondered, as a practical matter, if a\r
-distinction could be drawn between rare printed matter that might exist\r
-in multiple collections--that is, in ten or fifteen libraries. In such\r
-cases, the need for perfect reproduction would be less than for unique\r
-items. Implicit in his remarks, FLEISCHHAUER conceded, was the admission\r
-that AM has been tilting strongly towards quantity and drawing back a\r
-little from perfect quality. That is, it seemed to AM that society would\r
-be better served if more things were distributed by LC--even if they were\r
-not quite perfect--than if fewer things, perfectly represented, were\r
-distributed. This was stated as a proposition to be tested, with\r
-responses to be gathered from users.\r
-\r
-In thinking about issues related to reproduction of materials and seeing\r
-other people engaged in parallel activities, AM deemed it useful to\r
-convene a conference. Hence, the Workshop. FLEISCHHAUER thereupon\r
-surveyed the several groups represented: 1) the world of images (image\r
-users and image makers); 2) the world of text and scholarship and, within\r
-this group, those concerned with language--FLEISCHHAUER confessed to finding\r
-delightful irony in the fact that some of the most advanced thinkers on\r
-computerized texts are those dealing with ancient Greek and Roman materials;\r
-3) the network world; and 4) the general world of library science, which\r
-includes people interested in preservation and cataloging.\r
-\r
-FLEISCHHAUER concluded his remarks with special thanks to the David and\r
-Lucile Packard Foundation for its support of the meeting, the American\r
-Memory group, the Office for Scholarly Programs, the National\r
-Demonstration Lab, and the Office of Special Events. He expressed the\r
-hope that David Woodley Packard might be able to attend, noting that\r
-Packard's work and the work of the foundation had sponsored a number of\r
-projects in the text area.\r
-\r
- ******\r
-\r
-SESSION I. CONTENT IN A NEW FORM: WHO WILL USE IT AND WHAT WILL THEY DO?\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DALY * Acknowledgements * A new Latin authors disk * Effects of the new\r
-technology on previous methods of research * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Serving as moderator, James DALY acknowledged the generosity of all the\r
-presenters for giving of their time, counsel, and patience in planning\r
-the Workshop, as well as of members of the American Memory project and\r
-other Library of Congress staff, and the David and Lucile Packard\r
-Foundation and its executive director, Colburn S. Wilbur.\r
-\r
-DALY then recounted his visit in March to the Center for Electronic Texts\r
-in the Humanities (CETH) and the Department of Classics at Rutgers\r
-University, where an old friend, Lowell Edmunds, introduced him to the\r
-department's IBYCUS scholarly personal computer, and, in particular, the\r
-new Latin CD-ROM, containing, among other things, almost all classical\r
-Latin literary texts through A.D. 200. Packard Humanities Institute\r
-(PHI), Los Altos, California, released this disk late in 1991, with a\r
-nominal triennial licensing fee.\r
-\r
-Playing with the disk for an hour or so at Rutgers brought home to DALY\r
-at once the revolutionizing impact of the new technology on his previous\r
-methods of research. Had this disk been available two or three years\r
-earlier, DALY contended, when he was engaged in preparing a commentary on\r
-Book 10 of Virgil's Aeneid for Cambridge University Press, he would not\r
-have required a forty-eight-square-foot table on which to spread the\r
-numerous, most frequently consulted items, including some ten or twelve\r
-concordances to key Latin authors, an almost equal number of lexica to\r
-authors who lacked concordances, and where either lexica or concordances\r
-were lacking, numerous editions of authors antedating and postdating Virgil.\r
-\r
-Nor, when checking each of the average six to seven words contained in\r
-the Virgilian hexameter for its usage elsewhere in Virgil's works or\r
-other Latin authors, would DALY have had to maintain the laborious\r
-mechanical process of flipping through these concordances, lexica, and\r
-editions each time. Nor would he have had to frequent as often the\r
-Milton S. Eisenhower Library at the Johns Hopkins University to consult\r
-the Thesaurus Linguae Latinae. Instead of devoting countless hours, or\r
-the bulk of his research time, to gathering data concerning Virgil's use\r
-of words, DALY--now freed by PHI's Latin authors disk from the\r
-tyrannical, yet in some ways paradoxically happy scholarly drudgery--\r
-would have been able to devote that same bulk of time to analyzing and\r
-interpreting Virgilian verbal usage.\r
-\r
-Citing Theodore Brunner, Gregory Crane, Elli MYLONAS, and Avra MICHELSON,\r
-DALY argued that this reversal in his style of work, made possible by the\r
-new technology, would perhaps have resulted in better, more productive\r
-research. Indeed, even in the course of his browsing the Latin authors\r
-disk at Rutgers, its powerful search, retrieval, and highlighting\r
-capabilities suggested to him several new avenues of research into\r
-Virgil's use of sound effects. This anecdotal account, DALY maintained,\r
-may serve to illustrate in part the sudden and radical transformation\r
-being wrought in the ways scholars work.\r
-\r
- ******\r
-\r
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-MICHELSON * Elements related to scholarship and technology * Electronic\r
-texts within the context of broader trends within information technology\r
-and scholarly communication * Evaluation of the prospects for the use of\r
-electronic texts * Relationship of electronic texts to processes of\r
-scholarly communication in humanities research * New exchange formats\r
-created by scholars * Projects initiated to increase scholarly access to\r
-converted text * Trend toward making electronic resources available\r
-through research and education networks * Changes taking place in\r
-scholarly communication among humanities scholars * Network-mediated\r
-scholarship transforming traditional scholarly practices * Key\r
-information technology trends affecting the conduct of scholarly\r
-communication over the next decade * The trend toward end-user computing\r
-* The trend toward greater connectivity * Effects of these trends * Key\r
-transformations taking place * Summary of principal arguments *\r
-++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Avra MICHELSON, Archival Research and Evaluation Staff, National Archives\r
-and Records Administration (NARA), argued that establishing who will use\r
-electronic texts and what they will use them for involves a consideration\r
-of both information technology and scholarship trends. This\r
-consideration includes several elements related to scholarship and\r
-technology: 1) the key trends in information technology that are most\r
-relevant to scholarship; 2) the key trends in the use of currently\r
-available technology by scholars in the nonscientific community; and 3)\r
-the relationship between these two very distinct but interrelated trends. \r
-The investment in understanding this relationship being made by\r
-information providers, technologists, and public policy developers, as\r
-well as by scholars themselves, seems to be pervasive and growing,\r
-MICHELSON contended. She drew on collaborative work with Jeff Rothenberg\r
-on the scholarly use of technology.\r
-\r
-MICHELSON sought to place the phenomenon of electronic texts within the\r
-context of broader trends within information technology and scholarly\r
-communication. She argued that electronic texts are of most use to\r
-researchers to the extent that the researchers' working context (i.e.,\r
-their relevant bibliographic sources, collegial feedback, analytic tools,\r
-notes, drafts, etc.), along with their field's primary and secondary\r
-sources, also is accessible in electronic form and can be integrated in\r
-ways that are unique to the on-line environment.\r
-\r
-Evaluation of the prospects for the use of electronic texts includes two\r
-elements: 1) an examination of the ways in which researchers currently\r
-are using electronic texts along with other electronic resources, and 2)\r
-an analysis of key information technology trends that are affecting the\r
-long-term conduct of scholarly communication. MICHELSON limited her\r
-discussion of the use of electronic texts to the practices of humanists\r
-and noted that the scientific community was outside the panel's overview.\r
-\r
-MICHELSON examined the nature of the current relationship of electronic\r
-texts in particular, and electronic resources in general, to what she\r
-maintained were, essentially, five processes of scholarly communication\r
-in humanities research. Researchers 1) identify sources, 2) communicate\r
-with their colleagues, 3) interpret and analyze data, 4) disseminate\r
-their research findings, and 5) prepare curricula to instruct the next\r
-generation of scholars and students. This examination would produce a\r
-clearer understanding of the synergy among these five processes that\r
-fuels the tendency of the use of electronic resources for one process to\r
-stimulate its use for other processes of scholarly communication.\r
-\r
-For the first process of scholarly communication, the identification of\r
-sources, MICHELSON remarked the opportunity scholars now enjoy to\r
-supplement traditional word-of-mouth searches for sources among their\r
-colleagues with new forms of electronic searching. So, for example,\r
-instead of having to visit the library, researchers are able to explore\r
-descriptions of holdings in their offices. Furthermore, if their own\r
-institutions' holdings prove insufficient, scholars can access more than\r
-200 major American library catalogues over Internet, including the\r
-universities of California, Michigan, Pennsylvania, and Wisconsin. \r
-Direct access to the bibliographic databases offers intellectual\r
-empowerment to scholars by presenting a comprehensive means of browsing\r
-through libraries from their homes and offices at their convenience.\r
-\r
-The second process of communication involves communication among\r
-scholars. Beyond the most common methods of communication, scholars are\r
-using E-mail and a variety of new electronic communications formats\r
-derived from it for further academic interchange. E-mail exchanges are\r
-growing at an astonishing rate, reportedly 15 percent a month. They\r
-currently constitute approximately half the traffic on research and\r
-education networks. Moreover, the global spread of E-mail has been so\r
-rapid that it is now possible for American scholars to use it to\r
-communicate with colleagues in close to 140 other countries.\r
-\r
-Other new exchange formats created by scholars and operating on Internet\r
-include more than 700 conferences, with about 80 percent of these devoted\r
-to topics in the social sciences and humanities. The rate of growth of\r
-these scholarly electronic conferences also is astonishing. From l990 to\r
-l991, 200 new conferences were identified on Internet. From October 1991\r
-to June 1992, an additional 150 conferences in the social sciences and\r
-humanities were added to this directory of listings. Scholars have\r
-established conferences in virtually every field, within every different\r
-discipline. For example, there are currently close to 600 active social\r
-science and humanities conferences on topics such as art and\r
-architecture, ethnomusicology, folklore, Japanese culture, medical\r
-education, and gifted and talented education. The appeal to scholars of\r
-communicating through these conferences is that, unlike any other medium,\r
-electronic conferences today provide a forum for global communication\r
-with peers at the front end of the research process.\r
-\r
-Interpretation and analysis of sources constitutes the third process of\r
-scholarly communication that MICHELSON discussed in terms of texts and\r
-textual resources. The methods used to analyze sources fall somewhere on\r
-a continuum from quantitative analysis to qualitative analysis. \r
-Typically, evidence is culled and evaluated using methods drawn from both\r
-ends of this continuum. At one end, quantitative analysis involves the\r
-use of mathematical processes such as a count of frequencies and\r
-distributions of occurrences or, on a higher level, regression analysis. \r
-At the other end of the continuum, qualitative analysis typically\r
-involves nonmathematical processes oriented toward language\r
-interpretation or the building of theory. Aspects of this work involve\r
-the processing--either manual or computational--of large and sometimes\r
-massive amounts of textual sources, although the use of nontextual\r
-sources as evidence, such as photographs, sound recordings, film footage,\r
-and artifacts, is significant as well.\r
-\r
-Scholars have discovered that many of the methods of interpretation and\r
-analysis that are related to both quantitative and qualitative methods\r
-are processes that can be performed by computers. For example, computers\r
-can count. They can count brush strokes used in a Rembrandt painting or\r
-perform regression analysis for understanding cause and effect. By means\r
-of advanced technologies, computers can recognize patterns, analyze text,\r
-and model concepts. Furthermore, computers can complete these processes\r
-faster with more sources and with greater precision than scholars who\r
-must rely on manual interpretation of data. But if scholars are to use\r
-computers for these processes, source materials must be in a form\r
-amenable to computer-assisted analysis. For this reason many scholars,\r
-once they have identified the sources that are key to their research, are\r
-converting them to machine-readable form. Thus, a representative example\r
-of the numerous textual conversion projects organized by scholars around\r
-the world in recent years to support computational text analysis is the\r
-TLG, the Thesaurus Linguae Graecae. This project is devoted to\r
-converting the extant ancient texts of classical Greece. (Editor's note: \r
-according to the TLG Newsletter of May l992, TLG was in use in thirty-two\r
-different countries. This figure updates MICHELSON's previous count by one.)\r
-\r
-The scholars performing these conversions have been asked to recognize\r
-that the electronic sources they are converting for one use possess value\r
-for other research purposes as well. As a result, during the past few\r
-years, humanities scholars have initiated a number of projects to\r
-increase scholarly access to converted text. So, for example, the Text\r
-Encoding Initiative (TEI), about which more is said later in the program,\r
-was established as an effort by scholars to determine standard elements\r
-and methods for encoding machine-readable text for electronic exchange. \r
-In a second effort to facilitate the sharing of converted text, scholars\r
-have created a new institution, the Center for Electronic Texts in the\r
-Humanities (CETH). The center estimates that there are 8,000 series of\r
-source texts in the humanities that have been converted to\r
-machine-readable form worldwide. CETH is undertaking an international\r
-search for converted text in the humanities, compiling it into an\r
-electronic library, and preparing bibliographic descriptions of the\r
-sources for the Research Libraries Information Network's (RLIN)\r
-machine-readable data file. The library profession has begun to initiate\r
-large conversion projects as well, such as American Memory.\r
-\r
-While scholars have been making converted text available to one another,\r
-typically on disk or on CD-ROM, the clear trend is toward making these\r
-resources available through research and education networks. Thus, the\r
-American and French Research on the Treasury of the French Language\r
-(ARTFL) and the Dante Project are already available on Internet. \r
-MICHELSON summarized this section on interpretation and analysis by\r
-noting that: 1) increasing numbers of humanities scholars in the library\r
-community are recognizing the importance to the advancement of\r
-scholarship of retrospective conversion of source materials in the arts\r
-and humanities; and 2) there is a growing realization that making the\r
-sources available on research and education networks maximizes their\r
-usefulness for the analysis performed by humanities scholars.\r
-\r
-The fourth process of scholarly communication is dissemination of\r
-research findings, that is, publication. Scholars are using existing\r
-research and education networks to engineer a new type of publication: \r
-scholarly-controlled journals that are electronically produced and\r
-disseminated. Although such journals are still emerging as a\r
-communication format, their number has grown, from approximately twelve\r
-to thirty-six during the past year (July 1991 to June 1992). Most of\r
-these electronic scholarly journals are devoted to topics in the\r
-humanities. As with network conferences, scholarly enthusiasm for these\r
-electronic journals stems from the medium's unique ability to advance\r
-scholarship in a way that no other medium can do by supporting global\r
-feedback and interchange, practically in real time, early in the research\r
-process. Beyond scholarly journals, MICHELSON remarked the delivery of\r
-commercial full-text products, such as articles in professional journals,\r
-newsletters, magazines, wire services, and reference sources. These are\r
-being delivered via on-line local library catalogues, especially through\r
-CD-ROMs. Furthermore, according to MICHELSON, there is general optimism\r
-that the copyright and fees issues impeding the delivery of full text on\r
-existing research and education networks soon will be resolved.\r
-\r
-The final process of scholarly communication is curriculum development\r
-and instruction, and this involves the use of computer information\r
-technologies in two areas. The first is the development of\r
-computer-oriented instructional tools, which includes simulations,\r
-multimedia applications, and computer tools that are used to assist in\r
-the analysis of sources in the classroom, etc. The Perseus Project, a\r
-database that provides a multimedia curriculum on classical Greek\r
-civilization, is a good example of the way in which entire curricula are\r
-being recast using information technologies. It is anticipated that the\r
-current difficulty in exchanging electronically computer-based\r
-instructional software, which in turn makes it difficult for one scholar\r
-to build upon the work of others, will be resolved before too long. \r
-Stand-alone curricular applications that involve electronic text will be\r
-sharable through networks, reinforcing their significance as intellectual\r
-products as well as instructional tools.\r
-\r
-The second aspect of electronic learning involves the use of research and\r
-education networks for distance education programs. Such programs\r
-interactively link teachers with students in geographically scattered\r
-locations and rely on the availability of electronic instructional\r
-resources. Distance education programs are gaining wide appeal among\r
-state departments of education because of their demonstrated capacity to\r
-bring advanced specialized course work and an array of experts to many\r
-classrooms. A recent report found that at least 32 states operated at\r
-least one statewide network for education in 1991, with networks under\r
-development in many of the remaining states.\r
-\r
-MICHELSON summarized this section by noting two striking changes taking\r
-place in scholarly communication among humanities scholars. First is the\r
-extent to which electronic text in particular, and electronic resources\r
-in general, are being infused into each of the five processes described\r
-above. As mentioned earlier, there is a certain synergy at work here. \r
-The use of electronic resources for one process tends to stimulate its\r
-use for other processes, because the chief course of movement is toward a\r
-comprehensive on-line working context for humanities scholars that\r
-includes on-line availability of key bibliographies, scholarly feedback,\r
-sources, analytical tools, and publications. MICHELSON noted further\r
-that the movement toward a comprehensive on-line working context for\r
-humanities scholars is not new. In fact, it has been underway for more\r
-than forty years in the humanities, since Father Roberto Busa began\r
-developing an electronic concordance of the works of Saint Thomas Aquinas\r
-in 1949. What we are witnessing today, MICHELSON contended, is not the\r
-beginning of this on-line transition but, for at least some humanities\r
-scholars, the turning point in the transition from a print to an\r
-electronic working context. Coinciding with the on-line transition, the\r
-second striking change is the extent to which research and education\r
-networks are becoming the new medium of scholarly communication. The\r
-existing Internet and the pending National Education and Research Network\r
-(NREN) represent the new meeting ground where scholars are going for\r
-bibliographic information, scholarly dialogue and feedback, the most\r
-current publications in their field, and high-level educational\r
-offerings. Traditional scholarly practices are undergoing tremendous\r
-transformations as a result of the emergence and growing prominence of\r
-what is called network-mediated scholarship.\r
-\r
-MICHELSON next turned to the second element of the framework she proposed\r
-at the outset of her talk for evaluating the prospects for electronic\r
-text, namely the key information technology trends affecting the conduct\r
-of scholarly communication over the next decade: 1) end-user computing\r
-and 2) connectivity.\r
-\r
-End-user computing means that the person touching the keyboard, or\r
-performing computations, is the same as the person who initiates or\r
-consumes the computation. The emergence of personal computers, along\r
-with a host of other forces, such as ubiquitous computing, advances in\r
-interface design, and the on-line transition, is prompting the consumers\r
-of computation to do their own computing, and is thus rendering obsolete\r
-the traditional distinction between end users and ultimate users.\r
-\r
-The trend toward end-user computing is significant to consideration of\r
-the prospects for electronic texts because it means that researchers are\r
-becoming more adept at doing their own computations and, thus, more\r
-competent in the use of electronic media. By avoiding programmer\r
-intermediaries, computation is becoming central to the researcher's\r
-thought process. This direct involvement in computing is changing the\r
-researcher's perspective on the nature of research itself, that is, the\r
-kinds of questions that can be posed, the analytical methodologies that\r
-can be used, the types and amount of sources that are appropriate for\r
-analyses, and the form in which findings are presented. The trend toward\r
-end-user computing means that, increasingly, electronic media and\r
-computation are being infused into all processes of humanities\r
-scholarship, inspiring remarkable transformations in scholarly\r
-communication.\r
-\r
-The trend toward greater connectivity suggests that researchers are using\r
-computation increasingly in network environments. Connectivity is\r
-important to scholarship because it erases the distance that separates\r
-students from teachers and scholars from their colleagues, while allowing\r
-users to access remote databases, share information in many different\r
-media, connect to their working context wherever they are, and\r
-collaborate in all phases of research.\r
-\r
-The combination of the trend toward end-user computing and the trend\r
-toward connectivity suggests that the scholarly use of electronic\r
-resources, already evident among some researchers, will soon become an\r
-established feature of scholarship. The effects of these trends, along\r
-with ongoing changes in scholarly practices, point to a future in which\r
-humanities researchers will use computation and electronic communication\r
-to help them formulate ideas, access sources, perform research,\r
-collaborate with colleagues, seek peer review, publish and disseminate\r
-results, and engage in many other professional and educational activities.\r
-\r
-In summary, MICHELSON emphasized four points: 1) A portion of humanities\r
-scholars already consider electronic texts the preferred format for\r
-analysis and dissemination. 2) Scholars are using these electronic\r
-texts, in conjunction with other electronic resources, in all the\r
-processes of scholarly communication. 3) The humanities scholars'\r
-working context is in the process of changing from print technology to\r
-electronic technology, in many ways mirroring transformations that have\r
-occurred or are occurring within the scientific community. 4) These\r
-changes are occurring in conjunction with the development of a new\r
-communication medium: research and education networks that are\r
-characterized by their capacity to advance scholarship in a wholly unique\r
-way.\r
-\r
-MICHELSON also reiterated her three principal arguments: l) Electronic\r
-texts are best understood in terms of the relationship to other\r
-electronic resources and the growing prominence of network-mediated\r
-scholarship. 2) The prospects for electronic texts lie in their capacity\r
-to be integrated into the on-line network of electronic resources that\r
-comprise the new working context for scholars. 3) Retrospective conversion\r
-of portions of the scholarly record should be a key strategy as information\r
-providers respond to changes in scholarly communication practices.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-VECCIA * AM's evaluation project and public users of electronic resources\r
-* AM and its design * Site selection and evaluating the Macintosh\r
-implementation of AM * Characteristics of the six public libraries\r
-selected * Characteristics of AM's users in these libraries * Principal\r
-ways AM is being used *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Susan VECCIA, team leader, and Joanne FREEMAN, associate coordinator,\r
-American Memory, Library of Congress, gave a joint presentation. First,\r
-by way of introduction, VECCIA explained her and FREEMAN's roles in\r
-American Memory (AM). Serving principally as an observer, VECCIA has\r
-assisted with the evaluation project of AM, placing AM collections in a\r
-variety of different sites around the country and helping to organize and\r
-implement that project. FREEMAN has been an associate coordinator of AM\r
-and has been involved principally with the interpretative materials,\r
-preparing some of the electronic exhibits and printed historical\r
-information that accompanies AM and that is requested by users. VECCIA\r
-and FREEMAN shared anecdotal observations concerning AM with public users\r
-of electronic resources. Notwithstanding a fairly structured evaluation\r
-in progress, both VECCIA and FREEMAN chose not to report on specifics in\r
-terms of numbers, etc., because they felt it was too early in the\r
-evaluation project to do so.\r
-\r
-AM is an electronic archive of primary source materials from the Library\r
-of Congress, selected collections representing a variety of formats--\r
-photographs, graphic arts, recorded sound, motion pictures, broadsides,\r
-and soon, pamphlets and books. In terms of the design of this system,\r
-the interpretative exhibits have been kept separate from the primary\r
-resources, with good reason. Accompanying this collection are printed\r
-documentation and user guides, as well as guides that FREEMAN prepared for\r
-teachers so that they may begin using the content of the system at once.\r
-\r
-VECCIA described the evaluation project before talking about the public\r
-users of AM, limiting her remarks to public libraries, because FREEMAN\r
-would talk more specifically about schools from kindergarten to twelfth\r
-grade (K-12). Having started in spring 1991, the evaluation currently\r
-involves testing of the Macintosh implementation of AM. Since the\r
-primary goal of this evaluation is to determine the most appropriate\r
-audience or audiences for AM, very different sites were selected. This\r
-makes evaluation difficult because of the varying degrees of technology\r
-literacy among the sites. AM is situated in forty-four locations, of\r
-which six are public libraries and sixteen are schools. Represented\r
-among the schools are elementary, junior high, and high schools.\r
-District offices also are involved in the evaluation, which will\r
-conclude in summer 1993.\r
-\r
-VECCIA focused the remainder of her talk on the six public libraries, one\r
-of which doubles as a state library. They represent a range of\r
-geographic areas and a range of demographic characteristics. For\r
-example, three are located in urban settings, two in rural settings, and\r
-one in a suburban setting. A range of technical expertise is to be found\r
-among these facilities as well. For example, one is an "Apple library of\r
-the future," while two others are rural one-room libraries--in one, AM\r
-sits at the front desk next to a tractor manual.\r
-\r
-All public libraries have been extremely enthusiastic, supportive, and\r
-appreciative of the work that AM has been doing. VECCIA characterized\r
-various users: Most users in public libraries describe themselves as\r
-general readers; of the students who use AM in the public libraries,\r
-those in fourth grade and above seem most interested. Public libraries\r
-in rural sites tend to attract retired people, who have been highly\r
-receptive to AM. Users tend to fall into two additional categories: \r
-people interested in the content and historical connotations of these\r
-primary resources, and those fascinated by the technology. The format\r
-receiving the most comments has been motion pictures. The adult users in\r
-public libraries are more comfortable with IBM computers, whereas young\r
-people seem comfortable with either IBM or Macintosh, although most of\r
-them seem to come from a Macintosh background. This same tendency is\r
-found in the schools.\r
-\r
-What kinds of things do users do with AM? In a public library there are\r
-two main goals or ways that AM is being used: as an individual learning\r
-tool, and as a leisure activity. Adult learning was one area that VECCIA\r
-would highlight as a possible application for a tool such as AM. She\r
-described a patron of a rural public library who comes in every day on\r
-his lunch hour and literally reads AM, methodically going through the\r
-collection image by image. At the end of his hour he makes an electronic\r
-bookmark, puts it in his pocket, and returns to work. The next day he\r
-comes in and resumes where he left off. Interestingly, this man had\r
-never been in the library before he used AM. In another small, rural\r
-library, the coordinator reports that AM is a popular activity for some\r
-of the older, retired people in the community, who ordinarily would not\r
-use "those things,"--computers. Another example of adult learning in\r
-public libraries is book groups, one of which, in particular, is using AM\r
-as part of its reading on industrialization, integration, and urbanization\r
-in the early 1900s.\r
-\r
-One library reports that a family is using AM to help educate their\r
-children. In another instance, individuals from a local museum came in\r
-to use AM to prepare an exhibit on toys of the past. These two examples\r
-emphasize the mission of the public library as a cultural institution,\r
-reaching out to people who do not have the same resources available to\r
-those who live in a metropolitan area or have access to a major library. \r
-One rural library reports that junior high school students in large\r
-numbers came in one afternoon to use AM for entertainment. A number of\r
-public libraries reported great interest among postcard collectors in the\r
-Detroit collection, which was essentially a collection of images used on\r
-postcards around the turn of the century. Train buffs are similarly\r
-interested because that was a time of great interest in railroading. \r
-People, it was found, relate to things that they know of firsthand. For\r
-example, in both rural public libraries where AM was made available,\r
-observers reported that the older people with personal remembrances of\r
-the turn of the century were gravitating to the Detroit collection. \r
-These examples served to underscore MICHELSON's observation re the\r
-integration of electronic tools and ideas--that people learn best when\r
-the material relates to something they know.\r
-\r
-VECCIA made the final point that in many cases AM serves as a\r
-public-relations tool for the public libraries that are testing it. In\r
-one case, AM is being used as a vehicle to secure additional funding for\r
-the library. In another case, AM has served as an inspiration to the\r
-staff of a major local public library in the South to think about ways to\r
-make its own collection of photographs more accessible to the public.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-FREEMAN * AM and archival electronic resources in a school environment *\r
-Questions concerning context * Questions concerning the electronic format\r
-itself * Computer anxiety * Access and availability of the system *\r
-Hardware * Strengths gained through the use of archival resources in\r
-schools *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Reiterating an observation made by VECCIA, that AM is an archival\r
-resource made up of primary materials with very little interpretation,\r
-FREEMAN stated that the project has attempted to bridge the gap between\r
-these bare primary materials and a school environment, and in that cause\r
-has created guided introductions to AM collections. Loud demand from the\r
-educational community, chiefly from teachers working with the upper\r
-grades of elementary school through high school, greeted the announcement\r
-that AM would be tested around the country.\r
-\r
-FREEMAN reported not only on what was learned about AM in a school\r
-environment, but also on several universal questions that were raised\r
-concerning archival electronic resources in schools. She discussed\r
-several strengths of this type of material in a school environment as\r
-opposed to a highly structured resource that offers a limited number of\r
-paths to follow.\r
-\r
-FREEMAN first raised several questions about using AM in a school\r
-environment. There is often some difficulty in developing a sense of\r
-what the system contains. Many students sit down at a computer resource\r
-and assume that, because AM comes from the Library of Congress, all of\r
-American history is now at their fingertips. As a result of that sort of\r
-mistaken judgment, some students are known to conclude that AM contains\r
-nothing of use to them when they look for one or two things and do not\r
-find them. It is difficult to discover that middle ground where one has\r
-a sense of what the system contains. Some students grope toward the idea\r
-of an archive, a new idea to them, since they have not previously\r
-experienced what it means to have access to a vast body of somewhat\r
-random information.\r
-\r
-Other questions raised by FREEMAN concerned the electronic format itself. \r
-For instance, in a school environment it is often difficult both for\r
-teachers and students to gain a sense of what it is they are viewing. \r
-They understand that it is a visual image, but they do not necessarily\r
-know that it is a postcard from the turn of the century, a panoramic\r
-photograph, or even machine-readable text of an eighteenth-century\r
-broadside, a twentieth-century printed book, or a nineteenth-century\r
-diary. That distinction is often difficult for people in a school\r
-environment to grasp. Because of that, it occasionally becomes difficult\r
-to draw conclusions from what one is viewing.\r
-\r
-FREEMAN also noted the obvious fear of the computer, which constitutes a\r
-difficulty in using an electronic resource. Though students in general\r
-did not suffer from this anxiety, several older students feared that they\r
-were computer-illiterate, an assumption that became self-fulfilling when\r
-they searched for something but failed to find it. FREEMAN said she\r
-believed that some teachers also fear computer resources, because they\r
-believe they lack complete control. FREEMAN related the example of\r
-teachers shooing away students because it was not their time to use the\r
-system. This was a case in which the situation had to be extremely\r
-structured so that the teachers would not feel that they had lost their\r
-grasp on what the system contained.\r
-\r
-A final question raised by FREEMAN concerned access and availability of\r
-the system. She noted the occasional existence of a gap in communication\r
-between school librarians and teachers. Often AM sits in a school\r
-library and the librarian is the person responsible for monitoring the\r
-system. Teachers do not always take into their world new library\r
-resources about which the librarian is excited. Indeed, at the sites\r
-where AM had been used most effectively within a library, the librarian\r
-was required to go to specific teachers and instruct them in its use. As\r
-a result, several AM sites will have in-service sessions over a summer,\r
-in the hope that perhaps, with a more individualized link, teachers will\r
-be more likely to use the resource.\r
-\r
-A related issue in the school context concerned the number of\r
-workstations available at any one location. Centralization of equipment\r
-at the district level, with teachers invited to download things and walk\r
-away with them, proved unsuccessful because the hours these offices were\r
-open were also school hours.\r
-\r
-Another issue was hardware. As VECCIA observed, a range of sites exists,\r
-some technologically advanced and others essentially acquiring their\r
-first computer for the primary purpose of using it in conjunction with\r
-AM's testing. Users at technologically sophisticated sites want even\r
-more sophisticated hardware, so that they can perform even more\r
-sophisticated tasks with the materials in AM. But once they acquire a\r
-newer piece of hardware, they must learn how to use that also; at an\r
-unsophisticated site it takes an extremely long time simply to become\r
-accustomed to the computer, not to mention the program offered with the\r
-computer. All of these small issues raise one large question, namely,\r
-are systems like AM truly rewarding in a school environment, or do they\r
-simply act as innovative toys that do little more than spark interest?\r
-\r
-FREEMAN contended that the evaluation project has revealed several strengths\r
-that were gained through the use of archival resources in schools, including:\r
-\r
- * Psychic rewards from using AM as a vast, rich database, with\r
- teachers assigning various projects to students--oral presentations,\r
- written reports, a documentary, a turn-of-the-century newspaper--\r
- projects that start with the materials in AM but are completed using\r
- other resources; AM thus is used as a research tool in conjunction\r
- with other electronic resources, as well as with books and items in\r
- the library where the system is set up.\r
-\r
- * Students are acquiring computer literacy in a humanities context.\r
-\r
- * This sort of system is overcoming the isolation between disciplines\r
- that often exists in schools. For example, many English teachers are\r
- requiring their students to write papers on historical topics\r
- represented in AM. Numerous teachers have reported that their\r
- students are learning critical thinking skills using the system.\r
-\r
- * On a broader level, AM is introducing primary materials, not only\r
- to students but also to teachers, in an environment where often\r
- simply none exist--an exciting thing for the students because it\r
- helps them learn to conduct research, to interpret, and to draw\r
- their own conclusions. In learning to conduct research and what it\r
- means, students are motivated to seek knowledge. That relates to\r
- another positive outcome--a high level of personal involvement of\r
- students with the materials in this system and greater motivation to\r
- conduct their own research and draw their own conclusions.\r
-\r
- * Perhaps the most ironic strength of these kinds of archival\r
- electronic resources is that many of the teachers AM interviewed\r
- were desperate, it is no exaggeration to say, not only for primary\r
- materials but for unstructured primary materials. These would, they\r
- thought, foster personally motivated research, exploration, and\r
- excitement in their students. Indeed, these materials have done\r
- just that. Ironically, however, this lack of structure produces\r
- some of the confusion to which the newness of these kinds of\r
- resources may also contribute. The key to effective use of archival\r
- products in a school environment is a clear, effective introduction\r
- to the system and to what it contains. \r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Nothing known, quantitatively, about the number of\r
-humanities scholars who must see the original versus those who would\r
-settle for an edited transcript, or about the ways in which humanities\r
-scholars are using information technology * Firm conclusions concerning\r
-the manner and extent of the use of supporting materials in print\r
-provided by AM to await completion of evaluative study * A listener's\r
-reflections on additional applications of electronic texts * Role of\r
-electronic resources in teaching elementary research skills to students *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the discussion that followed the presentations by MICHELSON,\r
-VECCIA, and FREEMAN, additional points emerged.\r
-\r
-LESK asked if MICHELSON could give any quantitative estimate of the\r
-number of humanities scholars who must see or want to see the original,\r
-or the best possible version of the material, versus those who typically\r
-would settle for an edited transcript. While unable to provide a figure,\r
-she offered her impressions as an archivist who has done some reference\r
-work and has discussed this issue with other archivists who perform\r
-reference, that those who use archives and those who use primary sources\r
-for what would be considered very high-level scholarly research, as\r
-opposed to, say, undergraduate papers, were few in number, especially\r
-given the public interest in using primary sources to conduct\r
-genealogical or avocational research and the kind of professional\r
-research done by people in private industry or the federal government. \r
-More important in MICHELSON's view was that, quantitatively, nothing is\r
-known about the ways in which, for example, humanities scholars are using\r
-information technology. No studies exist to offer guidance in creating\r
-strategies. The most recent study was conducted in 1985 by the American\r
-Council of Learned Societies (ACLS), and what it showed was that 50\r
-percent of humanities scholars at that time were using computers. That\r
-constitutes the extent of our knowledge.\r
-\r
-Concerning AM's strategy for orienting people toward the scope of\r
-electronic resources, FREEMAN could offer no hard conclusions at this\r
-point, because she and her colleagues were still waiting to see,\r
-particularly in the schools, what has been made of their efforts. Within\r
-the system, however, AM has provided what are called electronic exhibits-\r
--such as introductions to time periods and materials--and these are\r
-intended to offer a student user a sense of what a broadside is and what\r
-it might tell her or him. But FREEMAN conceded that the project staff\r
-would have to talk with students next year, after teachers have had a\r
-summer to use the materials, and attempt to discover what the students\r
-were learning from the materials. In addition, FREEMAN described\r
-supporting materials in print provided by AM at the request of local\r
-teachers during a meeting held at LC. These included time lines,\r
-bibliographies, and other materials that could be reproduced on a\r
-photocopier in a classroom. Teachers could walk away with and use these,\r
-and in this way gain a better understanding of the contents. But again,\r
-reaching firm conclusions concerning the manner and extent of their use\r
-would have to wait until next year.\r
-\r
-As to the changes she saw occurring at the National Archives and Records\r
-Administration (NARA) as a result of the increasing emphasis on\r
-technology in scholarly research, MICHELSON stated that NARA at this\r
-point was absorbing the report by her and Jeff Rothenberg addressing\r
-strategies for the archival profession in general, although not for the\r
-National Archives specifically. NARA is just beginning to establish its\r
-role and what it can do. In terms of changes and initiatives that NARA\r
-can take, no clear response could be given at this time.\r
-\r
-GREENFIELD remarked two trends mentioned in the session. Reflecting on\r
-DALY's opening comments on how he could have used a Latin collection of\r
-text in an electronic form, he said that at first he thought most scholars\r
-would be unwilling to do that. But as he thought of that in terms of the\r
-original meaning of research--that is, having already mastered these texts,\r
-researching them for critical and comparative purposes--for the first time,\r
-the electronic format made a lot of sense. GREENFIELD could envision\r
-growing numbers of scholars learning the new technologies for that very\r
-aspect of their scholarship and for convenience's sake.\r
-\r
-Listening to VECCIA and FREEMAN, GREENFIELD thought of an additional\r
-application of electronic texts. He realized that AM could be used as a\r
-guide to lead someone to original sources. Students cannot be expected\r
-to have mastered these sources, things they have never known about\r
-before. Thus, AM is leading them, in theory, to a vast body of\r
-information and giving them a superficial overview of it, enabling them\r
-to select parts of it. GREENFIELD asked if any evidence exists that this\r
-resource will indeed teach the new user, the K-12 students, how to do\r
-research. Scholars already know how to do research and are applying\r
-these new tools. But he wondered why students would go beyond picking\r
-out things that were most exciting to them.\r
-\r
-FREEMAN conceded the correctness of GREENFIELD's observation as applied\r
-to a school environment. The risk is that a student would sit down at a\r
-system, play with it, find some things of interest, and then walk away. \r
-But in the relatively controlled situation of a school library, much will\r
-depend on the instructions a teacher or a librarian gives a student. She\r
-viewed the situation not as one of fine-tuning research skills but of\r
-involving students at a personal level in understanding and researching\r
-things. Given the guidance one can receive at school, it then becomes\r
-possible to teach elementary research skills to students, which in fact\r
-one particular librarian said she was teaching her fifth graders. \r
-FREEMAN concluded that introducing the idea of following one's own path\r
-of inquiry, which is essentially what research entails, involves more\r
-than teaching specific skills. To these comments VECCIA added the\r
-observation that the individual teacher and the use of a creative\r
-resource, rather than AM itself, seemed to make the key difference.\r
-Some schools and some teachers are making excellent use of the nature\r
-of critical thinking and teaching skills, she said.\r
-\r
-Concurring with these remarks, DALY closed the session with the thought that\r
-the more that producers produced for teachers and for scholars to use with\r
-their students, the more successful their electronic products would prove.\r
-\r
- ******\r
-\r
-SESSION II. SHOW AND TELL\r
-\r
-Jacqueline HESS, director, National Demonstration Laboratory, served as\r
-moderator of the "show-and-tell" session. She noted that a\r
-question-and-answer period would follow each presentation.\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-MYLONAS * Overview and content of Perseus * Perseus' primary materials\r
-exist in a system-independent, archival form * A concession * Textual\r
-aspects of Perseus * Tools to use with the Greek text * Prepared indices\r
-and full-text searches in Perseus * English-Greek word search leads to\r
-close study of words and concepts * Navigating Perseus by tracing down\r
-indices * Using the iconography to perform research *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Elli MYLONAS, managing editor, Perseus Project, Harvard University, first\r
-gave an overview of Perseus, a large, collaborative effort based at\r
-Harvard University but with contributors and collaborators located at\r
-numerous universities and colleges in the United States (e.g., Bowdoin,\r
-Maryland, Pomona, Chicago, Virginia). Funded primarily by the\r
-Annenberg/CPB Project, with additional funding from Apple, Harvard, and\r
-the Packard Humanities Institute, among others, Perseus is a multimedia,\r
-hypertextual database for teaching and research on classical Greek\r
-civilization, which was released in February 1992 in version 1.0 and\r
-distributed by Yale University Press.\r
-\r
-Consisting entirely of primary materials, Perseus includes ancient Greek\r
-texts and translations of those texts; catalog entries--that is, museum\r
-catalog entries, not library catalog entries--on vases, sites, coins,\r
-sculpture, and archaeological objects; maps; and a dictionary, among\r
-other sources. The number of objects and the objects for which catalog\r
-entries exist are accompanied by thousands of color images, which\r
-constitute a major feature of the database. Perseus contains\r
-approximately 30 megabytes of text, an amount that will double in\r
-subsequent versions. In addition to these primary materials, the Perseus\r
-Project has been building tools for using them, making access and\r
-navigation easier, the goal being to build part of the electronic\r
-environment discussed earlier in the morning in which students or\r
-scholars can work with their sources.\r
-\r
-The demonstration of Perseus will show only a fraction of the real work\r
-that has gone into it, because the project had to face the dilemma of\r
-what to enter when putting something into machine-readable form: should\r
-one aim for very high quality or make concessions in order to get the\r
-material in? Since Perseus decided to opt for very high quality, all of\r
-its primary materials exist in a system-independent--insofar as it is\r
-possible to be system-independent--archival form. Deciding what that\r
-archival form would be and attaining it required much work and thought. \r
-For example, all the texts are marked up in SGML, which will be made\r
-compatible with the guidelines of the Text Encoding Initiative (TEI) when\r
-they are issued.\r
-\r
-Drawings are postscript files, not meeting international standards, but\r
-at least designed to go across platforms. Images, or rather the real\r
-archival forms, consist of the best available slides, which are being\r
-digitized. Much of the catalog material exists in database form--a form\r
-that the average user could use, manipulate, and display on a personal\r
-computer, but only at great cost. Thus, this is where the concession\r
-comes in: All of this rich, well-marked-up information is stripped of\r
-much of its content; the images are converted into bit-maps and the text\r
-into small formatted chunks. All this information can then be imported\r
-into HyperCard and run on a mid-range Macintosh, which is what Perseus\r
-users have. This fact has made it possible for Perseus to attain wide\r
-use fairly rapidly. Without those archival forms the HyperCard version\r
-being demonstrated could not be made easily, and the project could not\r
-have the potential to move to other forms and machines and software as\r
-they appear, none of which information is in Perseus on the CD.\r
-\r
-Of the numerous multimedia aspects of Perseus, MYLONAS focused on the\r
-textual. Part of what makes Perseus such a pleasure to use, MYLONAS\r
-said, is this effort at seamless integration and the ability to move\r
-around both visual and textual material. Perseus also made the decision\r
-not to attempt to interpret its material any more than one interprets by\r
-selecting. But, MYLONAS emphasized, Perseus is not courseware: No\r
-syllabus exists. There is no effort to define how one teaches a topic\r
-using Perseus, although the project may eventually collect papers by\r
-people who have used it to teach. Rather, Perseus aims to provide\r
-primary material in a kind of electronic library, an electronic sandbox,\r
-so to say, in which students and scholars who are working on this\r
-material can explore by themselves. With that, MYLONAS demonstrated\r
-Perseus, beginning with the Perseus gateway, the first thing one sees\r
-upon opening Perseus--an effort in part to solve the contextualizing\r
-problem--which tells the user what the system contains.\r
-\r
-MYLONAS demonstrated only a very small portion, beginning with primary\r
-texts and running off the CD-ROM. Having selected Aeschylus' Prometheus\r
-Bound, which was viewable in Greek and English pretty much in the same\r
-segments together, MYLONAS demonstrated tools to use with the Greek text,\r
-something not possible with a book: looking up the dictionary entry form\r
-of an unfamiliar word in Greek after subjecting it to Perseus'\r
-morphological analysis for all the texts. After finding out about a\r
-word, a user may then decide to see if it is used anywhere else in Greek. \r
-Because vast amounts of indexing support all of the primary material, one\r
-can find out where else all forms of a particular Greek word appear--\r
-often not a trivial matter because Greek is highly inflected. Further,\r
-since the story of Prometheus has to do with the origins of sacrifice, a\r
-user may wish to study and explore sacrifice in Greek literature; by\r
-typing sacrifice into a small window, a user goes to the English-Greek\r
-word list--something one cannot do without the computer (Perseus has\r
-indexed the definitions of its dictionary)--the string sacrifice appears\r
-in the definitions of these sixty-five words. One may then find out\r
-where any of those words is used in the work(s) of a particular author. \r
-The English definitions are not lemmatized.\r
-\r
-All of the indices driving this kind of usage were originally devised for\r
-speed, MYLONAS observed; in other words, all that kind of information--\r
-all forms of all words, where they exist, the dictionary form they belong\r
-to--were collected into databases, which will expedite searching. Then\r
-it was discovered that one can do things searching in these databases\r
-that could not be done searching in the full texts. Thus, although there\r
-are full-text searches in Perseus, much of the work is done behind the\r
-scenes, using prepared indices. Re the indexing that is done behind the\r
-scenes, MYLONAS pointed out that without the SGML forms of the text, it\r
-could not be done effectively. Much of this indexing is based on the\r
-structures that are made explicit by the SGML tagging.\r
-\r
-It was found that one of the things many of Perseus' non-Greek-reading\r
-users do is start from the dictionary and then move into the close study\r
-of words and concepts via this kind of English-Greek word search, by which\r
-means they might select a concept. This exercise has been assigned to\r
-students in core courses at Harvard--to study a concept by looking for the\r
-English word in the dictionary, finding the Greek words, and then finding\r
-the words in the Greek but, of course, reading across in the English.\r
-That tells them a great deal about what a translation means as well.\r
-\r
-Should one also wish to see images that have to do with sacrifice, that\r
-person would go to the object key word search, which allows one to\r
-perform a similar kind of index retrieval on the database of\r
-archaeological objects. Without words, pictures are useless; Perseus has\r
-not reached the point where it can do much with images that are not\r
-cataloged. Thus, although it is possible in Perseus with text and images\r
-to navigate by knowing where one wants to end up--for example, a\r
-red-figure vase from the Boston Museum of Fine Arts--one can perform this\r
-kind of navigation very easily by tracing down indices. MYLONAS\r
-illustrated several generic scenes of sacrifice on vases. The features\r
-demonstrated derived from Perseus 1.0; version 2.0 will implement even\r
-better means of retrieval.\r
-\r
-MYLONAS closed by looking at one of the pictures and noting again that\r
-one can do a great deal of research using the iconography as well as the\r
-texts. For instance, students in a core course at Harvard this year were\r
-highly interested in Greek concepts of foreigners and representations of\r
-non-Greeks. So they performed a great deal of research, both with texts\r
-(e.g., Herodotus) and with iconography on vases and coins, on how the\r
-Greeks portrayed non-Greeks. At the same time, art historians who study\r
-iconography were also interested, and were able to use this material.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Indexing and searchability of all English words in Perseus *\r
-Several features of Perseus 1.0 * Several levels of customization\r
-possible * Perseus used for general education * Perseus' effects on\r
-education * Contextual information in Perseus * Main challenge and\r
-emphasis of Perseus *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Several points emerged in the discussion that followed MYLONAS's presentation.\r
-\r
-Although MYLONAS had not demonstrated Perseus' ability to cross-search\r
-documents, she confirmed that all English words in Perseus are indexed\r
-and can be searched. So, for example, sacrifice could have been searched\r
-in all texts, the historical essay, and all the catalogue entries with\r
-their descriptions--in short, in all of Perseus.\r
-\r
-Boolean logic is not in Perseus 1.0 but will be added to the next\r
-version, although an effort is being made not to restrict Perseus to a\r
-database in which one just performs searching, Boolean or otherwise. It\r
-is possible to move laterally through the documents by selecting a word\r
-one is interested in and selecting an area of information one is\r
-interested in and trying to look that word up in that area.\r
-\r
-Since Perseus was developed in HyperCard, several levels of customization\r
-are possible. Simple authoring tools exist that allow one to create\r
-annotated paths through the information, which are useful for note-taking\r
-and for guided tours for teaching purposes and for expository writing. \r
-With a little more ingenuity it is possible to begin to add or substitute\r
-material in Perseus.\r
-\r
-Perseus has not been used so much for classics education as for general\r
-education, where it seemed to have an impact on the students in the core\r
-course at Harvard (a general required course that students must take in\r
-certain areas). Students were able to use primary material much more.\r
-\r
-The Perseus Project has an evaluation team at the University of Maryland\r
-that has been documenting Perseus' effects on education. Perseus is very\r
-popular, and anecdotal evidence indicates that it is having an effect at\r
-places other than Harvard, for example, test sites at Ball State\r
-University, Drury College, and numerous small places where opportunities\r
-to use vast amounts of primary data may not exist. One documented effect\r
-is that archaeological, anthropological, and philological research is\r
-being done by the same person instead of by three different people.\r
-\r
-The contextual information in Perseus includes an overview essay, a\r
-fairly linear historical essay on the fifth century B.C. that provides\r
-links into the primary material (e.g., Herodotus, Thucydides, and\r
-Plutarch), via small gray underscoring (on the screen) of linked\r
-passages. These are handmade links into other material.\r
-\r
-To different extents, most of the production work was done at Harvard,\r
-where the people and the equipment are located. Much of the\r
-collaborative activity involved data collection and structuring, because\r
-the main challenge and the emphasis of Perseus is the gathering of\r
-primary material, that is, building a useful environment for studying\r
-classical Greece, collecting data, and making it useful. \r
-Systems-building is definitely not the main concern. Thus, much of the\r
-work has involved writing essays, collecting information, rewriting it,\r
-and tagging it. That can be done off site. The creative link for the\r
-overview essay as well as for both systems and data was collaborative,\r
-and was forged via E-mail and paper mail with professors at Pomona and\r
-Bowdoin.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-CALALUCA * PLD's principal focus and contribution to scholarship *\r
-Various questions preparatory to beginning the project * Basis for\r
-project * Basic rule in converting PLD * Concerning the images in PLD *\r
-Running PLD under a variety of retrieval softwares * Encoding the\r
-database a hard-fought issue * Various features demonstrated * Importance\r
-of user documentation * Limitations of the CD-ROM version * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Eric CALALUCA, vice president, Chadwyck-Healey, Inc., demonstrated a\r
-software interpretation of the Patrologia Latina Database (PLD). PLD's\r
-principal focus from the beginning of the project about three-and-a-half\r
-years ago was on converting Migne's Latin series, and in the end,\r
-CALALUCA suggested, conversion of the text will be the major contribution\r
-to scholarship. CALALUCA stressed that, as possibly the only private\r
-publishing organization at the Workshop, Chadwyck-Healey had sought no\r
-federal funds or national foundation support before embarking upon the\r
-project, but instead had relied upon a great deal of homework and\r
-marketing to accomplish the task of conversion.\r
-\r
-Ever since the possibilities of computer-searching have emerged, scholars\r
-in the field of late ancient and early medieval studies (philosophers,\r
-theologians, classicists, and those studying the history of natural law\r
-and the history of the legal development of Western civilization) have\r
-been longing for a fully searchable version of Western literature, for\r
-example, all the texts of Augustine and Bernard of Clairvaux and\r
-Boethius, not to mention all the secondary and tertiary authors.\r
-\r
-Various questions arose, CALALUCA said. Should one convert Migne? \r
-Should the database be encoded? Is it necessary to do that? How should\r
-it be delivered? What about CD-ROM? Since this is a transitional\r
-medium, why even bother to create software to run on a CD-ROM? Since\r
-everybody knows people will be networking information, why go to the\r
-trouble--which is far greater with CD-ROM than with the production of\r
-magnetic data? Finally, how does one make the data available? Can many\r
-of the hurdles to using electronic information that some publishers have\r
-imposed upon databases be eliminated?\r
-\r
-The PLD project was based on the principle that computer-searching of\r
-texts is most effective when it is done with a large database. Because\r
-PLD represented a collection that serves so many disciplines across so\r
-many periods, it was irresistible.\r
-\r
-The basic rule in converting PLD was to do no harm, to avoid the sins of\r
-intrusion in such a database: no introduction of newer editions, no\r
-on-the-spot changes, no eradicating of all possible falsehoods from an\r
-edition. Thus, PLD is not the final act in electronic publishing for\r
-this discipline, but simply the beginning. The conversion of PLD has\r
-evoked numerous unanticipated questions: How will information be used? \r
-What about networking? Can the rights of a database be protected? \r
-Should one protect the rights of a database? How can it be made\r
-available?\r
-\r
-Those converting PLD also tried to avoid the sins of omission, that is,\r
-excluding portions of the collections or whole sections. What about the\r
-images? PLD is full of images, some are extremely pious\r
-nineteenth-century representations of the Fathers, while others contain\r
-highly interesting elements. The goal was to cover all the text of Migne\r
-(including notes, in Greek and in Hebrew, the latter of which, in\r
-particular, causes problems in creating a search structure), all the\r
-indices, and even the images, which are being scanned in separately\r
-searchable files.\r
-\r
-Several North American institutions that have placed acquisition requests\r
-for the PLD database have requested it in magnetic form without software,\r
-which means they are already running it without software, without\r
-anything demonstrated at the Workshop.\r
-\r
-What cannot practically be done is go back and reconvert and re-encode\r
-data, a time-consuming and extremely costly enterprise. CALALUCA sees\r
-PLD as a database that can, and should, be run under a variety of\r
-retrieval softwares. This will permit the widest possible searches. \r
-Consequently, the need to produce a CD-ROM of PLD, as well as to develop\r
-software that could handle some 1.3 gigabyte of heavily encoded text,\r
-developed out of conversations with collection development and reference\r
-librarians who wanted software both compassionate enough for the\r
-pedestrian but also capable of incorporating the most detailed\r
-lexicographical studies that a user desires to conduct. In the end, the\r
-encoding and conversion of the data will prove the most enduring\r
-testament to the value of the project.\r
-\r
-The encoding of the database was also a hard-fought issue: Did the\r
-database need to be encoded? Were there normative structures for encoding\r
-humanist texts? Should it be SGML? What about the TEI--will it last,\r
-will it prove useful? CALALUCA expressed some minor doubts as to whether\r
-a data bank can be fully TEI-conformant. Every effort can be made, but\r
-in the end to be TEI-conformant means to accept the need to make some\r
-firm encoding decisions that can, indeed, be disputed. The TEI points\r
-the publisher in a proper direction but does not presume to make all the\r
-decisions for him or her. Essentially, the goal of encoding was to\r
-eliminate, as much as possible, the hindrances to information-networking,\r
-so that if an institution acquires a database, everybody associated with\r
-the institution can have access to it.\r
-\r
-CALALUCA demonstrated a portion of Volume 160, because it had the most\r
-anomalies in it. The software was created by Electronic Book\r
-Technologies of Providence, RI, and is called Dynatext. The software\r
-works only with SGML-coded data.\r
-\r
-Viewing a table of contents on the screen, the audience saw how Dynatext\r
-treats each element as a book and attempts to simplify movement through a\r
-volume. Familiarity with the Patrologia in print (i.e., the text, its\r
-source, and the editions) will make the machine-readable versions highly\r
-useful. (Software with a Windows application was sought for PLD,\r
-CALALUCA said, because this was the main trend for scholarly use.)\r
-\r
-CALALUCA also demonstrated how a user can perform a variety of searches\r
-and quickly move to any part of a volume; the look-up screen provides\r
-some basic, simple word-searching. \r
-\r
-CALALUCA argued that one of the major difficulties is not the software. \r
-Rather, in creating a product that will be used by scholars representing\r
-a broad spectrum of computer sophistication, user documentation proves\r
-to be the most important service one can provide.\r
-\r
-CALALUCA next illustrated a truncated search under mysterium within ten\r
-words of virtus and how one would be able to find its contents throughout\r
-the entire database. He said that the exciting thing about PLD is that\r
-many of the applications in the retrieval software being written for it\r
-will exceed the capabilities of the software employed now for the CD-ROM\r
-version. The CD-ROM faces genuine limitations, in terms of speed and\r
-comprehensiveness, in the creation of a retrieval software to run it. \r
-CALALUCA said he hoped that individual scholars will download the data,\r
-if they wish, to their personal computers, and have ready access to\r
-important texts on a constant basis, which they will be able to use in\r
-their research and from which they might even be able to publish.\r
-\r
-(CALALUCA explained that the blue numbers represented Migne's column numbers,\r
-which are the standard scholarly references. Pulling up a note, he stated\r
-that these texts were heavily edited and the image files would appear simply\r
-as a note as well, so that one could quickly access an image.)\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-FLEISCHHAUER/ERWAY * Several problems with which AM is still wrestling *\r
-Various search and retrieval capabilities * Illustration of automatic\r
-stemming and a truncated search * AM's attempt to find ways to connect\r
-cataloging to the texts * AM's gravitation towards SGML * Striking a\r
-balance between quantity and quality * How AM furnishes users recourse to\r
-images * Conducting a search in a full-text environment * Macintosh and\r
-IBM prototypes of AM * Multimedia aspects of AM *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-A demonstration of American Memory by its coordinator, Carl FLEISCHHAUER,\r
-and Ricky ERWAY, associate coordinator, Library of Congress, concluded\r
-the morning session. Beginning with a collection of broadsides from the\r
-Continental Congress and the Constitutional Convention, the only text\r
-collection in a presentable form at the time of the Workshop, FLEISCHHAUER\r
-highlighted several of the problems with which AM is still wrestling.\r
-(In its final form, the disk will contain two collections, not only the\r
-broadsides but also the full text with illustrations of a set of\r
-approximately 300 African-American pamphlets from the period 1870 to 1910.)\r
-\r
-As FREEMAN had explained earlier, AM has attempted to use a small amount\r
-of interpretation to introduce collections. In the present case, the\r
-contractor, a company named Quick Source, in Silver Spring, MD., used\r
-software called Toolbook and put together a modestly interactive\r
-introduction to the collection. Like the two preceding speakers,\r
-FLEISCHHAUER argued that the real asset was the underlying collection.\r
-\r
-FLEISCHHAUER proceeded to describe various search and retrieval\r
-capabilities while ERWAY worked the computer. In this particular package\r
-the "go to" pull-down allowed the user in effect to jump out of Toolbook,\r
-where the interactive program was located, and enter the third-party\r
-software used by AM for this text collection, which is called Personal\r
-Librarian. This was the Windows version of Personal Librarian, a\r
-software application put together by a company in Rockville, Md.\r
-\r
-Since the broadsides came from the Revolutionary War period, a search was\r
-conducted using the words British or war, with the default operator reset\r
-as or. FLEISCHHAUER demonstrated both automatic stemming (which finds\r
-other forms of the same root) and a truncated search. One of Personal\r
-Librarian's strongest features, the relevance ranking, was represented by\r
-a chart that indicated how often words being sought appeared in\r
-documents, with the one receiving the most "hits" obtaining the highest\r
-score. The "hit list" that is supplied takes the relevance ranking into\r
-account, making the first hit, in effect, the one the software has\r
-selected as the most relevant example.\r
-\r
-While in the text of one of the broadside documents, FLEISCHHAUER\r
-remarked AM's attempt to find ways to connect cataloging to the texts,\r
-which it does in different ways in different manifestations. In the case\r
-shown, the cataloging was pasted on: AM took MARC records that were\r
-written as on-line records right into one of the Library's mainframe\r
-retrieval programs, pulled them out, and handed them off to the contractor,\r
-who massaged them somewhat to display them in the manner shown. One of\r
-AM's questions is, Does the cataloguing normally performed in the mainframe\r
-work in this context, or had AM ought to think through adjustments?\r
-\r
-FLEISCHHAUER made the additional point that, as far as the text goes, AM\r
-has gravitated towards SGML (he pointed to the boldface in the upper part\r
-of the screen). Although extremely limited in its ability to translate\r
-or interpret SGML, Personal Librarian will furnish both bold and italics\r
-on screen; a fairly easy thing to do, but it is one of the ways in which\r
-SGML is useful.\r
-\r
-Striking a balance between quantity and quality has been a major concern\r
-of AM, with accuracy being one of the places where project staff have\r
-felt that less than 100-percent accuracy was not unacceptable. \r
-FLEISCHHAUER cited the example of the standard of the rekeying industry,\r
-namely 99.95 percent; as one service bureau informed him, to go from\r
-99.95 to 100 percent would double the cost.\r
-\r
-FLEISCHHAUER next demonstrated how AM furnishes users recourse to images,\r
-and at the same time recalled LESK's pointed question concerning the\r
-number of people who would look at those images and the number who would\r
-work only with the text. If the implication of LESK's question was\r
-sound, FLEISCHHAUER said, it raised the stakes for text accuracy and\r
-reduced the value of the strategy for images.\r
-\r
-Contending that preservation is always a bugaboo, FLEISCHHAUER\r
-demonstrated several images derived from a scan of a preservation\r
-microfilm that AM had made. He awarded a grade of C at best, perhaps a\r
-C minus or a C plus, for how well it worked out. Indeed, the matter of\r
-learning if other people had better ideas about scanning in general, and,\r
-in particular, scanning from microfilm, was one of the factors that drove\r
-AM to attempt to think through the agenda for the Workshop. Skew, for\r
-example, was one of the issues that AM in its ignorance had not reckoned\r
-would prove so difficult.\r
-\r
-Further, the handling of images of the sort shown, in a desktop computer\r
-environment, involved a considerable amount of zooming and scrolling. \r
-Ultimately, AM staff feel that perhaps the paper copy that is printed out\r
-might be the most useful one, but they remain uncertain as to how much\r
-on-screen reading users will do.\r
-\r
-Returning to the text, FLEISCHHAUER asked viewers to imagine a person who\r
-might be conducting a search in a full-text environment. With this\r
-scenario, he proceeded to illustrate other features of Personal Librarian\r
-that he considered helpful; for example, it provides the ability to\r
-notice words as one reads. Clicking the "include" button on the bottom\r
-of the search window pops the words that have been highlighted into the\r
-search. Thus, a user can refine the search as he or she reads,\r
-re-executing the search and continuing to find things in the quest for\r
-materials. This software not only contains relevance ranking, Boolean\r
-operators, and truncation, it also permits one to perform word algebra,\r
-so to say, where one puts two or three words in parentheses and links\r
-them with one Boolean operator and then a couple of words in another set\r
-of parentheses and asks for things within so many words of others.\r
-\r
-Until they became acquainted recently with some of the work being done in\r
-classics, the AM staff had not realized that a large number of the\r
-projects that involve electronic texts were being done by people with a\r
-profound interest in language and linguistics. Their search strategies\r
-and thinking are oriented to those fields, as is shown in particular by\r
-the Perseus example. As amateur historians, the AM staff were thinking\r
-more of searching for concepts and ideas than for particular words. \r
-Obviously, FLEISCHHAUER conceded, searching for concepts and ideas and\r
-searching for words may be two rather closely related things.\r
-\r
-While displaying several images, FLEISCHHAUER observed that the Macintosh\r
-prototype built by AM contains a greater diversity of formats. Echoing a\r
-previous speaker, he said that it was easier to stitch things together in\r
-the Macintosh, though it tended to be a little more anemic in search and\r
-retrieval. AM, therefore, increasingly has been investigating\r
-sophisticated retrieval engines in the IBM format.\r
-\r
-FLEISCHHAUER demonstrated several additional examples of the prototype\r
-interfaces: One was AM's metaphor for the network future, in which a\r
-kind of reading-room graphic suggests how one would be able to go around\r
-to different materials. AM contains a large number of photographs in\r
-analog video form worked up from a videodisc, which enable users to make\r
-copies to print or incorporate in digital documents. A frame-grabber is\r
-built into the system, making it possible to bring an image into a window\r
-and digitize or print it out.\r
-\r
-FLEISCHHAUER next demonstrated sound recording, which included texts. \r
-Recycled from a previous project, the collection included sixty 78-rpm\r
-phonograph records of political speeches that were made during and\r
-immediately after World War I. These constituted approximately three\r
-hours of audio, as AM has digitized it, which occupy 150 megabytes on a\r
-CD. Thus, they are considerably compressed. From the catalogue card,\r
-FLEISCHHAUER proceeded to a transcript of a speech with the audio\r
-available and with highlighted text following it as it played.\r
-A photograph has been added and a transcription made.\r
-\r
-Considerable value has been added beyond what the Library of Congress\r
-normally would do in cataloguing a sound recording, which raises several\r
-questions for AM concerning where to draw lines about how much value it can\r
-afford to add and at what point, perhaps, this becomes more than AM could\r
-reasonably do or reasonably wish to do. FLEISCHHAUER also demonstrated\r
-a motion picture. As FREEMAN had reported earlier, the motion picture\r
-materials have proved the most popular, not surprisingly. This says more\r
-about the medium, he thought, than about AM's presentation of it.\r
-\r
-Because AM's goal was to bring together things that could be used by\r
-historians or by people who were curious about history,\r
-turn-of-the-century footage seemed to represent the most appropriate\r
-collections from the Library of Congress in motion pictures. These were\r
-the very first films made by Thomas Edison's company and some others at\r
-that time. The particular example illustrated was a Biograph film,\r
-brought in with a frame-grabber into a window. A single videodisc\r
-contains about fifty titles and pieces of film from that period, all of\r
-New York City. Taken together, AM believes, they provide an interesting\r
-documentary resource.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Using the frame-grabber in AM * Volume of material processed\r
-and to be processed * Purpose of AM within LC * Cataloguing and the\r
-nature of AM's material * SGML coding and the question of quality versus\r
-quantity *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the question-and-answer period that followed FLEISCHHAUER's\r
-presentation, several clarifications were made.\r
-\r
-AM is bringing in motion pictures from a videodisc. The frame-grabber\r
-devices create a window on a computer screen, which permits users to\r
-digitize a single frame of the movie or one of the photographs. It\r
-produces a crude, rough-and-ready image that high school students can\r
-incorporate into papers, and that has worked very nicely in this way.\r
-\r
-Commenting on FLEISCHHAUER's assertion that AM was looking more at\r
-searching ideas than words, MYLONAS argued that without words an idea\r
-does not exist. FLEISCHHAUER conceded that he ought to have articulated\r
-his point more clearly. MYLONAS stated that they were in fact both\r
-talking about the same thing. By searching for words and by forcing\r
-people to focus on the word, the Perseus Project felt that they would get\r
-them to the idea. The way one reviews results is tailored more to one\r
-kind of user than another.\r
-\r
-Concerning the total volume of material that has been processed in this\r
-way, AM at this point has in retrievable form seven or eight collections,\r
-all of them photographic. In the Macintosh environment, for example,\r
-there probably are 35,000-40,000 photographs. The sound recordings\r
-number sixty items. The broadsides number about 300 items. There are\r
-500 political cartoons in the form of drawings. The motion pictures, as\r
-individual items, number sixty to seventy.\r
-\r
-AM also has a manuscript collection, the life history portion of one of\r
-the federal project series, which will contain 2,900 individual\r
-documents, all first-person narratives. AM has in process about 350\r
-African-American pamphlets, or about 12,000 printed pages for the period\r
-1870-1910. Also in the works are some 4,000 panoramic photographs. AM\r
-has recycled a fair amount of the work done by LC's Prints and\r
-Photographs Division during the Library's optical disk pilot project in\r
-the 1980s. For example, a special division of LC has tooled up and\r
-thought through all the ramifications of electronic presentation of\r
-photographs. Indeed, they are wheeling them out in great barrel loads. \r
-The purpose of AM within the Library, it is hoped, is to catalyze several\r
-of the other special collection divisions which have no particular\r
-experience with, in some cases, mixed feelings about, an activity such as\r
-AM. Moreover, in many cases the divisions may be characterized as not\r
-only lacking experience in "electronifying" things but also in automated\r
-cataloguing. MARC cataloguing as practiced in the United States is\r
-heavily weighted toward the description of monograph and serial\r
-materials, but is much thinner when one enters the world of manuscripts\r
-and things that are held in the Library's music collection and other\r
-units. In response to a comment by LESK, that AM's material is very\r
-heavily photographic, and is so primarily because individual records have\r
-been made for each photograph, FLEISCHHAUER observed that an item-level\r
-catalog record exists, for example, for each photograph in the Detroit\r
-Publishing collection of 25,000 pictures. In the case of the Federal\r
-Writers Project, for which nearly 3,000 documents exist, representing\r
-information from twenty-six different states, AM with the assistance of\r
-Karen STUART of the Manuscript Division will attempt to find some way not\r
-only to have a collection-level record but perhaps a MARC record for each\r
-state, which will then serve as an umbrella for the 100-200 documents\r
-that come under it. But that drama remains to be enacted. The AM staff\r
-is conservative and clings to cataloguing, though of course visitors tout\r
-artificial intelligence and neural networks in a manner that suggests that\r
-perhaps one need not have cataloguing or that much of it could be put aside.\r
-\r
-The matter of SGML coding, FLEISCHHAUER conceded, returned the discussion\r
-to the earlier treated question of quality versus quantity in the Library\r
-of Congress. Of course, text conversion can be done with 100-percent\r
-accuracy, but it means that when one's holdings are as vast as LC's only\r
-a tiny amount will be exposed, whereas permitting lower levels of\r
-accuracy can lead to exposing or sharing larger amounts, but with the\r
-quality correspondingly impaired.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-TWOHIG * A contrary experience concerning electronic options * Volume of\r
-material in the Washington papers and a suggestion of David Packard *\r
-Implications of Packard's suggestion * Transcribing the documents for the\r
-CD-ROM * Accuracy of transcriptions * The CD-ROM edition of the Founding\r
-Fathers documents *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Finding encouragement in a comment of MICHELSON's from the morning\r
-session--that numerous people in the humanities were choosing electronic\r
-options to do their work--Dorothy TWOHIG, editor, The Papers of George\r
-Washington, opened her illustrated talk by noting that her experience\r
-with literary scholars and numerous people in editing was contrary to\r
-MICHELSON's. TWOHIG emphasized literary scholars' complete ignorance of\r
-the technological options available to them or their reluctance or, in\r
-some cases, their downright hostility toward these options.\r
-\r
-After providing an overview of the five Founding Fathers projects\r
-(Jefferson at Princeton, Franklin at Yale, John Adams at the\r
-Massachusetts Historical Society, and Madison down the hall from her at\r
-the University of Virginia), TWOHIG observed that the Washington papers,\r
-like all of the projects, include both sides of the Washington\r
-correspondence and deal with some 135,000 documents to be published with\r
-extensive annotation in eighty to eighty-five volumes, a project that\r
-will not be completed until well into the next century. Thus, it was\r
-with considerable enthusiasm several years ago that the Washington Papers\r
-Project (WPP) greeted David Packard's suggestion that the papers of the\r
-Founding Fathers could be published easily and inexpensively, and to the\r
-great benefit of American scholarship, via CD-ROM.\r
-\r
-In pragmatic terms, funding from the Packard Foundation would expedite\r
-the transcription of thousands of documents waiting to be put on disk in\r
-the WPP offices. Further, since the costs of collecting, editing, and\r
-converting the Founding Fathers documents into letterpress editions were\r
-running into the millions of dollars, and the considerable staffs\r
-involved in all of these projects were devoting their careers to\r
-producing the work, the Packard Foundation's suggestion had a\r
-revolutionary aspect: Transcriptions of the entire corpus of the\r
-Founding Fathers papers would be available on CD-ROM to public and\r
-college libraries, even high schools, at a fraction of the cost--\r
-$100-$150 for the annual license fee--to produce a limited university\r
-press run of 1,000 of each volume of the published papers at $45-$150 per\r
-printed volume. Given the current budget crunch in educational systems\r
-and the corresponding constraints on librarians in smaller institutions\r
-who wish to add these volumes to their collections, producing the\r
-documents on CD-ROM would likely open a greatly expanded audience for the\r
-papers. TWOHIG stressed, however, that development of the Founding\r
-Fathers CD-ROM is still in its infancy. Serious software problems remain\r
-to be resolved before the material can be put into readable form. \r
-\r
-Funding from the Packard Foundation resulted in a major push to\r
-transcribe the 75,000 or so documents of the Washington papers remaining\r
-to be transcribed onto computer disks. Slides illustrated several of the\r
-problems encountered, for example, the present inability of CD-ROM to\r
-indicate the cross-outs (deleted material) in eighteenth century\r
-documents. TWOHIG next described documents from various periods in the\r
-eighteenth century that have been transcribed in chronological order and\r
-delivered to the Packard offices in California, where they are converted\r
-to the CD-ROM, a process that is expected to consume five years to\r
-complete (that is, reckoning from David Packard's suggestion made several\r
-years ago, until about July 1994). TWOHIG found an encouraging\r
-indication of the project's benefits in the ongoing use made by scholars\r
-of the search functions of the CD-ROM, particularly in reducing the time\r
-spent in manually turning the pages of the Washington papers.\r
-\r
-TWOHIG next furnished details concerning the accuracy of transcriptions. \r
-For instance, the insertion of thousands of documents on the CD-ROM\r
-currently does not permit each document to be verified against the\r
-original manuscript several times as in the case of documents that appear\r
-in the published edition. However, the transcriptions receive a cursory\r
-check for obvious typos, the misspellings of proper names, and other\r
-errors from the WPP CD-ROM editor. Eventually, all documents that appear\r
-in the electronic version will be checked by project editors. Although\r
-this process has met with opposition from some of the editors on the\r
-grounds that imperfect work may leave their offices, the advantages in\r
-making this material available as a research tool outweigh fears about the\r
-misspelling of proper names and other relatively minor editorial matters.\r
-\r
-Completion of all five Founding Fathers projects (i.e., retrievability\r
-and searchability of all of the documents by proper names, alternate\r
-spellings, or varieties of subjects) will provide one of the richest\r
-sources of this size for the history of the United States in the latter\r
-part of the eighteenth century. Further, publication on CD-ROM will\r
-allow editors to include even minutiae, such as laundry lists, not\r
-included in the printed volumes.\r
-\r
-It seems possible that the extensive annotation provided in the printed\r
-volumes eventually will be added to the CD-ROM edition, pending\r
-negotiations with the publishers of the papers. At the moment, the\r
-Founding Fathers CD-ROM is accessible only on the IBYCUS, a computer\r
-developed out of the Thesaurus Linguae Graecae project and designed for\r
-the use of classical scholars. There are perhaps 400 IBYCUS computers in\r
-the country, most of which are in university classics departments. \r
-Ultimately, it is anticipated that the CD-ROM edition of the Founding\r
-Fathers documents will run on any IBM-compatible or Macintosh computer\r
-with a CD-ROM drive. Numerous changes in the software will also occur\r
-before the project is completed. (Editor's note: an IBYCUS was\r
-unavailable to demonstrate the CD-ROM.)\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Several additional features of WPP clarified *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Discussion following TWOHIG's presentation served to clarify several\r
-additional features, including (1) that the project's primary\r
-intellectual product consists in the electronic transcription of the\r
-material; (2) that the text transmitted to the CD-ROM people is not\r
-marked up; (3) that cataloging and subject-indexing of the material\r
-remain to be worked out (though at this point material can be retrieved\r
-by name); and (4) that because all the searching is done in the hardware,\r
-the IBYCUS is designed to read a CD-ROM which contains only sequential\r
-text files. Technically, it then becomes very easy to read the material\r
-off and put it on another device.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-LEBRON * Overview of the history of the joint project between AAAS and\r
-OCLC * Several practices the on-line environment shares with traditional\r
-publishing on hard copy * Several technical and behavioral barriers to\r
-electronic publishing * How AAAS and OCLC arrived at the subject of\r
-clinical trials * Advantages of the electronic format and other features\r
-of OJCCT * An illustrated tour of the journal *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Maria LEBRON, managing editor, The Online Journal of Current Clinical\r
-Trials (OJCCT), presented an illustrated overview of the history of the\r
-joint project between the American Association for the Advancement of\r
-Science (AAAS) and the Online Computer Library Center, Inc. (OCLC). The\r
-joint venture between AAAS and OCLC owes its beginning to a\r
-reorganization launched by the new chief executive officer at OCLC about\r
-three years ago and combines the strengths of these two disparate\r
-organizations. In short, OJCCT represents the process of scholarly\r
-publishing on line.\r
-\r
-LEBRON next discussed several practices the on-line environment shares\r
-with traditional publishing on hard copy--for example, peer review of\r
-manuscripts--that are highly important in the academic world. LEBRON\r
-noted in particular the implications of citation counts for tenure\r
-committees and grants committees. In the traditional hard-copy\r
-environment, citation counts are readily demonstrable, whereas the\r
-on-line environment represents an ethereal medium to most academics.\r
-\r
-LEBRON remarked several technical and behavioral barriers to electronic\r
-publishing, for instance, the problems in transmission created by special\r
-characters or by complex graphics and halftones. In addition, she noted\r
-economic limitations such as the storage costs of maintaining back issues\r
-and market or audience education.\r
-\r
-Manuscripts cannot be uploaded to OJCCT, LEBRON explained, because it is\r
-not a bulletin board or E-mail, forms of electronic transmission of\r
-information that have created an ambience clouding people's understanding\r
-of what the journal is attempting to do. OJCCT, which publishes\r
-peer-reviewed medical articles dealing with the subject of clinical\r
-trials, includes text, tabular material, and graphics, although at this\r
-time it can transmit only line illustrations.\r
-\r
-Next, LEBRON described how AAAS and OCLC arrived at the subject of\r
-clinical trials: It is 1) a highly statistical discipline that 2) does\r
-not require halftones but can satisfy the needs of its audience with line\r
-illustrations and graphic material, and 3) there is a need for the speedy\r
-dissemination of high-quality research results. Clinical trials are\r
-research activities that involve the administration of a test treatment\r
-to some experimental unit in order to test its usefulness before it is\r
-made available to the general population. LEBRON proceeded to give\r
-additional information on OJCCT concerning its editor-in-chief, editorial\r
-board, editorial content, and the types of articles it publishes\r
-(including peer-reviewed research reports and reviews), as well as\r
-features shared by other traditional hard-copy journals.\r
-\r
-Among the advantages of the electronic format are faster dissemination of\r
-information, including raw data, and the absence of space constraints\r
-because pages do not exist. (This latter fact creates an interesting\r
-situation when it comes to citations.) Nor are there any issues. AAAS's\r
-capacity to download materials directly from the journal to a\r
-subscriber's printer, hard drive, or floppy disk helps ensure highly\r
-accurate transcription. Other features of OJCCT include on-screen alerts\r
-that allow linkage of subsequently published documents to the original\r
-documents; on-line searching by subject, author, title, etc.; indexing of\r
-every single word that appears in an article; viewing access to an\r
-article by component (abstract, full text, or graphs); numbered\r
-paragraphs to replace page counts; publication in Science every thirty\r
-days of indexing of all articles published in the journal;\r
-typeset-quality screens; and Hypertext links that enable subscribers to\r
-bring up Medline abstracts directly without leaving the journal.\r
-\r
-After detailing the two primary ways to gain access to the journal,\r
-through the OCLC network and Compuserv if one desires graphics or through\r
-the Internet if just an ASCII file is desired, LEBRON illustrated the\r
-speedy editorial process and the coding of the document using SGML tags\r
-after it has been accepted for publication. She also gave an illustrated\r
-tour of the journal, its search-and-retrieval capabilities in particular,\r
-but also including problems associated with scanning in illustrations,\r
-and the importance of on-screen alerts to the medical profession re\r
-retractions or corrections, or more frequently, editorials, letters to\r
-the editors, or follow-up reports. She closed by inviting the audience\r
-to join AAAS on 1 July, when OJCCT was scheduled to go on-line.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Additional features of OJCCT *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-In the lengthy discussion that followed LEBRON's presentation, these\r
-points emerged:\r
-\r
- * The SGML text can be tailored as users wish.\r
-\r
- * All these articles have a fairly simple document definition.\r
-\r
- * Document-type definitions (DTDs) were developed and given to OJCCT\r
- for coding.\r
-\r
- * No articles will be removed from the journal. (Because there are\r
- no back issues, there are no lost issues either. Once a subscriber\r
- logs onto the journal he or she has access not only to the currently\r
- published materials, but retrospectively to everything that has been\r
- published in it. Thus the table of contents grows bigger. The date\r
- of publication serves to distinguish between currently published\r
- materials and older materials.)\r
-\r
- * The pricing system for the journal resembles that for most medical\r
- journals: for 1992, $95 for a year, plus telecommunications charges\r
- (there are no connect time charges); for 1993, $110 for the\r
- entire year for single users, though the journal can be put on a\r
- local area network (LAN). However, only one person can access the\r
- journal at a time. Site licenses may come in the future.\r
-\r
- * AAAS is working closely with colleagues at OCLC to display\r
- mathematical equations on screen.\r
-\r
- * Without compromising any steps in the editorial process, the\r
- technology has reduced the time lag between when a manuscript is\r
- originally submitted and the time it is accepted; the review process\r
- does not differ greatly from the standard six-to-eight weeks\r
- employed by many of the hard-copy journals. The process still\r
- depends on people.\r
-\r
- * As far as a preservation copy is concerned, articles will be\r
- maintained on the computer permanently and subscribers, as part of\r
- their subscription, will receive a microfiche-quality archival copy\r
- of everything published during that year; in addition, reprints can\r
- be purchased in much the same way as in a hard-copy environment. \r
- Hard copies are prepared but are not the primary medium for the\r
- dissemination of the information.\r
-\r
- * Because OJCCT is not yet on line, it is difficult to know how many\r
- people would simply browse through the journal on the screen as\r
- opposed to downloading the whole thing and printing it out; a mix of\r
- both types of users likely will result.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-PERSONIUS * Developments in technology over the past decade * The CLASS\r
-Project * Advantages for technology and for the CLASS Project *\r
-Developing a network application an underlying assumption of the project\r
-* Details of the scanning process * Print-on-demand copies of books *\r
-Future plans include development of a browsing tool *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Lynne PERSONIUS, assistant director, Cornell Information Technologies for\r
-Scholarly Information Services, Cornell University, first commented on\r
-the tremendous impact that developments in technology over the past ten\r
-years--networking, in particular--have had on the way information is\r
-handled, and how, in her own case, these developments have counterbalanced\r
-Cornell's relative geographical isolation. Other significant technologies\r
-include scanners, which are much more sophisticated than they were ten years\r
-ago; mass storage and the dramatic savings that result from it in terms of\r
-both space and money relative to twenty or thirty years ago; new and\r
-improved printing technologies, which have greatly affected the distribution\r
-of information; and, of course, digital technologies, whose applicability to\r
-library preservation remains at issue.\r
-\r
-Given that context, PERSONIUS described the College Library Access and\r
-Storage System (CLASS) Project, a library preservation project,\r
-primarily, and what has been accomplished. Directly funded by the\r
-Commission on Preservation and Access and by the Xerox Corporation, which\r
-has provided a significant amount of hardware, the CLASS Project has been\r
-working with a development team at Xerox to develop a software\r
-application tailored to library preservation requirements. Within\r
-Cornell, participants in the project have been working jointly with both\r
-library and information technologies. The focus of the project has been\r
-on reformatting and saving books that are in brittle condition. \r
-PERSONIUS showed Workshop participants a brittle book, and described how\r
-such books were the result of developments in papermaking around the\r
-beginning of the Industrial Revolution. The papermaking process was\r
-changed so that a significant amount of acid was introduced into the\r
-actual paper itself, which deteriorates as it sits on library shelves.\r
-\r
-One of the advantages for technology and for the CLASS Project is that\r
-the information in brittle books is mostly out of copyright and thus\r
-offers an opportunity to work with material that requires library\r
-preservation, and to create and work on an infrastructure to save the\r
-material. Acknowledging the familiarity of those working in preservation\r
-with this information, PERSONIUS noted that several things are being\r
-done: the primary preservation technology used today is photocopying of\r
-brittle material. Saving the intellectual content of the material is the\r
-main goal. With microfilm copy, the intellectual content is preserved on\r
-the assumption that in the future the image can be reformatted in any\r
-other way that then exists.\r
-\r
-An underlying assumption of the CLASS Project from the beginning was\r
-that it would develop a network application. Project staff scan books\r
-at a workstation located in the library, near the brittle material.\r
-An image-server filing system is located at a distance from that\r
-workstation, and a printer is located in another building. All of the\r
-materials digitized and stored on the image-filing system are cataloged\r
-in the on-line catalogue. In fact, a record for each of these electronic\r
-books is stored in the RLIN database so that a record exists of what is\r
-in the digital library throughout standard catalogue procedures. In the\r
-future, researchers working from their own workstations in their offices,\r
-or their networks, will have access--wherever they might be--through a\r
-request server being built into the new digital library. A second\r
-assumption is that the preferred means of finding the material will be by\r
-looking through a catalogue. PERSONIUS described the scanning process,\r
-which uses a prototype scanner being developed by Xerox and which scans a\r
-very high resolution image at great speed. Another significant feature,\r
-because this is a preservation application, is the placing of the pages\r
-that fall apart one for one on the platen. Ordinarily, a scanner could\r
-be used with some sort of a document feeder, but because of this\r
-application that is not feasible. Further, because CLASS is a\r
-preservation application, after the paper replacement is made there, a\r
-very careful quality control check is performed. An original book is\r
-compared to the printed copy and verification is made, before proceeding,\r
-that all of the image, all of the information, has been captured. Then,\r
-a new library book is produced: The printed images are rebound by a\r
-commercial binder and a new book is returned to the shelf. \r
-Significantly, the books returned to the library shelves are beautiful\r
-and useful replacements on acid-free paper that should last a long time,\r
-in effect, the equivalent of preservation photocopies. Thus, the project\r
-has a library of digital books. In essence, CLASS is scanning and\r
-storing books as 600 dot-per-inch bit-mapped images, compressed using\r
-Group 4 CCITT (i.e., the French acronym for International Consultative\r
-Committee for Telegraph and Telephone) compression. They are stored as\r
-TIFF files on an optical filing system that is composed of a database\r
-used for searching and locating the books and an optical jukebox that\r
-stores 64 twelve-inch platters. A very-high-resolution printed copy of\r
-these books at 600 dots per inch is created, using a Xerox DocuTech\r
-printer to make the paper replacements on acid-free paper.\r
-\r
-PERSONIUS maintained that the CLASS Project presents an opportunity to\r
-introduce people to books as digital images by using a paper medium. \r
-Books are returned to the shelves while people are also given the ability\r
-to print on demand--to make their own copies of books. (PERSONIUS\r
-distributed copies of an engineering journal published by engineering\r
-students at Cornell around 1900 as an example of what a print-on-demand\r
-copy of material might be like. This very cheap copy would be available\r
-to people to use for their own research purposes and would bridge the gap\r
-between an electronic work and the paper that readers like to have.) \r
-PERSONIUS then attempted to illustrate a very early prototype of\r
-networked access to this digital library. Xerox Corporation has\r
-developed a prototype of a view station that can send images across the\r
-network to be viewed.\r
-\r
-The particular library brought down for demonstration contained two\r
-mathematics books. CLASS is developing and will spend the next year\r
-developing an application that allows people at workstations to browse\r
-the books. Thus, CLASS is developing a browsing tool, on the assumption\r
-that users do not want to read an entire book from a workstation, but\r
-would prefer to be able to look through and decide if they would like to\r
-have a printed copy of it.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Re retrieval software * "Digital file copyright" * Scanning\r
-rate during production * Autosegmentation * Criteria employed in\r
-selecting books for scanning * Compression and decompression of images *\r
-OCR not precluded *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the question-and-answer period that followed her presentation,\r
-PERSONIUS made these additional points:\r
-\r
- * Re retrieval software, Cornell is developing a Unix-based server\r
- as well as clients for the server that support multiple platforms\r
- (Macintosh, IBM and Sun workstations), in the hope that people from\r
- any of those platforms will retrieve books; a further operating\r
- assumption is that standard interfaces will be used as much as\r
- possible, where standards can be put in place, because CLASS\r
- considers this retrieval software a library application and would\r
- like to be able to look at material not only at Cornell but at other\r
- institutions.\r
-\r
- * The phrase "digital file copyright by Cornell University" was\r
- added at the advice of Cornell's legal staff with the caveat that it\r
- probably would not hold up in court. Cornell does not want people\r
- to copy its books and sell them but would like to keep them\r
- available for use in a library environment for library purposes.\r
-\r
- * In production the scanner can scan about 300 pages per hour,\r
- capturing 600 dots per inch.\r
-\r
- * The Xerox software has filters to scan halftone material and avoid\r
- the moire patterns that occur when halftone material is scanned. \r
- Xerox has been working on hardware and software that would enable\r
- the scanner itself to recognize this situation and deal with it\r
- appropriately--a kind of autosegmentation that would enable the\r
- scanner to handle halftone material as well as text on a single page.\r
-\r
- * The books subjected to the elaborate process described above were\r
- selected because CLASS is a preservation project, with the first 500\r
- books selected coming from Cornell's mathematics collection, because\r
- they were still being heavily used and because, although they were\r
- in need of preservation, the mathematics library and the mathematics\r
- faculty were uncomfortable having them microfilmed. (They wanted a\r
- printed copy.) Thus, these books became a logical choice for this\r
- project. Other books were chosen by the project's selection committees\r
- for experiments with the technology, as well as to meet a demand or need.\r
-\r
- * Images will be decompressed before they are sent over the line; at\r
- this time they are compressed and sent to the image filing system\r
- and then sent to the printer as compressed images; they are returned\r
- to the workstation as compressed 600-dpi images and the workstation\r
- decompresses and scales them for display--an inefficient way to\r
- access the material though it works quite well for printing and\r
- other purposes.\r
-\r
- * CLASS is also decompressing on Macintosh and IBM, a slow process\r
- right now. Eventually, compression and decompression will take\r
- place on an image conversion server. Trade-offs will be made, based\r
- on future performance testing, concerning where the file is\r
- compressed and what resolution image is sent.\r
-\r
- * OCR has not been precluded; images are being stored that have been\r
- scanned at a high resolution, which presumably would suit them well\r
- to an OCR process. Because the material being scanned is about 100\r
- years old and was printed with less-than-ideal technologies, very\r
- early and preliminary tests have not produced good results. But the\r
- project is capturing an image that is of sufficient resolution to be\r
- subjected to OCR in the future. Moreover, the system architecture\r
- and the system plan have a logical place to store an OCR image if it\r
- has been captured. But that is not being done now.\r
-\r
- ******\r
-\r
-SESSION III. DISTRIBUTION, NETWORKS, AND NETWORKING: OPTIONS FOR\r
-DISSEMINATION\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-ZICH * Issues pertaining to CD-ROMs * Options for publishing in CD-ROM *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Robert ZICH, special assistant to the associate librarian for special\r
-projects, Library of Congress, and moderator of this session, first noted\r
-the blessed but somewhat awkward circumstance of having four very\r
-distinguished people representing networks and networking or at least\r
-leaning in that direction, while lacking anyone to speak from the\r
-strongest possible background in CD-ROMs. ZICH expressed the hope that\r
-members of the audience would join the discussion. He stressed the\r
-subtitle of this particular session, "Options for Dissemination," and,\r
-concerning CD-ROMs, the importance of determining when it would be wise\r
-to consider dissemination in CD-ROM versus networks. A shopping list of\r
-issues pertaining to CD-ROMs included: the grounds for selecting\r
-commercial publishers, and in-house publication where possible versus\r
-nonprofit or government publication. A similar list for networks\r
-included: determining when one should consider dissemination through a\r
-network, identifying the mechanisms or entities that exist to place items\r
-on networks, identifying the pool of existing networks, determining how a\r
-producer would choose between networks, and identifying the elements of\r
-a business arrangement in a network.\r
-\r
-Options for publishing in CD-ROM: an outside publisher versus\r
-self-publication. If an outside publisher is used, it can be nonprofit,\r
-such as the Government Printing Office (GPO) or the National Technical\r
-Information Service (NTIS), in the case of government. The pros and cons\r
-associated with employing an outside publisher are obvious. Among the\r
-pros, there is no trouble getting accepted. One pays the bill and, in\r
-effect, goes one's way. Among the cons, when one pays an outside\r
-publisher to perform the work, that publisher will perform the work it is\r
-obliged to do, but perhaps without the production expertise and skill in\r
-marketing and dissemination that some would seek. There is the body of\r
-commercial publishers that do possess that kind of expertise in\r
-distribution and marketing but that obviously are selective. In\r
-self-publication, one exercises full control, but then one must handle\r
-matters such as distribution and marketing. Such are some of the options\r
-for publishing in the case of CD-ROM.\r
-\r
-In the case of technical and design issues, which are also important,\r
-there are many matters which many at the Workshop already knew a good\r
-deal about: retrieval system requirements and costs, what to do about\r
-images, the various capabilities and platforms, the trade-offs between\r
-cost and performance, concerns about local-area networkability,\r
-interoperability, etc.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-LYNCH * Creating networked information is different from using networks\r
-as an access or dissemination vehicle * Networked multimedia on a large\r
-scale does not yet work * Typical CD-ROM publication model a two-edged\r
-sword * Publishing information on a CD-ROM in the present world of\r
-immature standards * Contrast between CD-ROM and network pricing *\r
-Examples demonstrated earlier in the day as a set of insular information\r
-gems * Paramount need to link databases * Layering to become increasingly\r
-necessary * Project NEEDS and the issues of information reuse and active\r
-versus passive use * X-Windows as a way of differentiating between\r
-network access and networked information * Barriers to the distribution\r
-of networked multimedia information * Need for good, real-time delivery\r
-protocols * The question of presentation integrity in client-server\r
-computing in the academic world * Recommendations for producing multimedia\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Clifford LYNCH, director, Library Automation, University of California,\r
-opened his talk with the general observation that networked information\r
-constituted a difficult and elusive topic because it is something just\r
-starting to develop and not yet fully understood. LYNCH contended that\r
-creating genuinely networked information was different from using\r
-networks as an access or dissemination vehicle and was more sophisticated\r
-and more subtle. He invited the members of the audience to extrapolate,\r
-from what they heard about the preceding demonstration projects, to what\r
-sort of a world of electronics information--scholarly, archival,\r
-cultural, etc.--they wished to end up with ten or fifteen years from now. \r
-LYNCH suggested that to extrapolate directly from these projects would\r
-produce unpleasant results.\r
-\r
-Putting the issue of CD-ROM in perspective before getting into\r
-generalities on networked information, LYNCH observed that those engaged\r
-in multimedia today who wish to ship a product, so to say, probably do\r
-not have much choice except to use CD-ROM: networked multimedia on a\r
-large scale basically does not yet work because the technology does not\r
-exist. For example, anybody who has tried moving images around over the\r
-Internet knows that this is an exciting touch-and-go process, a\r
-fascinating and fertile area for experimentation, research, and\r
-development, but not something that one can become deeply enthusiastic\r
-about committing to production systems at this time.\r
-\r
-This situation will change, LYNCH said. He differentiated CD-ROM from\r
-the practices that have been followed up to now in distributing data on\r
-CD-ROM. For LYNCH the problem with CD-ROM is not its portability or its\r
-slowness but the two-edged sword of having the retrieval application and\r
-the user interface inextricably bound up with the data, which is the\r
-typical CD-ROM publication model. It is not a case of publishing data\r
-but of distributing a typically stand-alone, typically closed system,\r
-all--software, user interface, and data--on a little disk. Hence, all\r
-the between-disk navigational issues as well as the impossibility in most\r
-cases of integrating data on one disk with that on another. Most CD-ROM\r
-retrieval software does not network very gracefully at present. However,\r
-in the present world of immature standards and lack of understanding of\r
-what network information is or what the ground rules are for creating or\r
-using it, publishing information on a CD-ROM does add value in a very\r
-real sense.\r
-\r
-LYNCH drew a contrast between CD-ROM and network pricing and in doing so\r
-highlighted something bizarre in information pricing. A large\r
-institution such as the University of California has vendors who will\r
-offer to sell information on CD-ROM for a price per year in four digits,\r
-but for the same data (e.g., an abstracting and indexing database) on\r
-magnetic tape, regardless of how many people may use it concurrently,\r
-will quote a price in six digits.\r
-\r
-What is packaged with the CD-ROM in one sense adds value--a complete\r
-access system, not just raw, unrefined information--although it is not\r
-generally perceived that way. This is because the access software,\r
-although it adds value, is viewed by some people, particularly in the\r
-university environment where there is a very heavy commitment to\r
-networking, as being developed in the wrong direction.\r
-\r
-Given that context, LYNCH described the examples demonstrated as a set of\r
-insular information gems--Perseus, for example, offers nicely linked\r
-information, but would be very difficult to integrate with other\r
-databases, that is, to link together seamlessly with other source files\r
-from other sources. It resembles an island, and in this respect is\r
-similar to numerous stand-alone projects that are based on videodiscs,\r
-that is, on the single-workstation concept.\r
-\r
-As scholarship evolves in a network environment, the paramount need will\r
-be to link databases. We must link personal databases to public\r
-databases, to group databases, in fairly seamless ways--which is\r
-extremely difficult in the environments under discussion with copies of\r
-databases proliferating all over the place.\r
-\r
-The notion of layering also struck LYNCH as lurking in several of the\r
-projects demonstrated. Several databases in a sense constitute\r
-information archives without a significant amount of navigation built in. \r
-Educators, critics, and others will want a layered structure--one that\r
-defines or links paths through the layers to allow users to reach\r
-specific points. In LYNCH's view, layering will become increasingly\r
-necessary, and not just within a single resource but across resources\r
-(e.g., tracing mythology and cultural themes across several classics\r
-databases as well as a database of Renaissance culture). This ability to\r
-organize resources, to build things out of multiple other things on the\r
-network or select pieces of it, represented for LYNCH one of the key\r
-aspects of network information.\r
-\r
-Contending that information reuse constituted another significant issue,\r
-LYNCH commended to the audience's attention Project NEEDS (i.e., National\r
-Engineering Education Delivery System). This project's objective is to\r
-produce a database of engineering courseware as well as the components\r
-that can be used to develop new courseware. In a number of the existing\r
-applications, LYNCH said, the issue of reuse (how much one can take apart\r
-and reuse in other applications) was not being well considered. He also\r
-raised the issue of active versus passive use, one aspect of which is\r
-how much information will be manipulated locally by users. Most people,\r
-he argued, may do a little browsing and then will wish to print. LYNCH\r
-was uncertain how these resources would be used by the vast majority of\r
-users in the network environment.\r
-\r
-LYNCH next said a few words about X-Windows as a way of differentiating\r
-between network access and networked information. A number of the\r
-applications demonstrated at the Workshop could be rewritten to use X\r
-across the network, so that one could run them from any X-capable device-\r
--a workstation, an X terminal--and transact with a database across the\r
-network. Although this opens up access a little, assuming one has enough\r
-network to handle it, it does not provide an interface to develop a\r
-program that conveniently integrates information from multiple databases. \r
-X is a viewing technology that has limits. In a real sense, it is just a\r
-graphical version of remote log-in across the network. X-type applications\r
-represent only one step in the progression towards real access.\r
-\r
-LYNCH next discussed barriers to the distribution of networked multimedia\r
-information. The heart of the problem is a lack of standards to provide\r
-the ability for computers to talk to each other, retrieve information,\r
-and shuffle it around fairly casually. At the moment, little progress is\r
-being made on standards for networked information; for example, present\r
-standards do not cover images, digital voice, and digital video. A\r
-useful tool kit of exchange formats for basic texts is only now being\r
-assembled. The synchronization of content streams (i.e., synchronizing a\r
-voice track to a video track, establishing temporal relations between\r
-different components in a multimedia object) constitutes another issue\r
-for networked multimedia that is just beginning to receive attention.\r
-\r
-Underlying network protocols also need some work; good, real-time\r
-delivery protocols on the Internet do not yet exist. In LYNCH's view,\r
-highly important in this context is the notion of networked digital\r
-object IDs, the ability of one object on the network to point to another\r
-object (or component thereof) on the network. Serious bandwidth issues\r
-also exist. LYNCH was uncertain if billion-bit-per-second networks would\r
-prove sufficient if numerous people ran video in parallel.\r
-\r
-LYNCH concluded by offering an issue for database creators to consider,\r
-as well as several comments about what might constitute good trial\r
-multimedia experiments. In a networked information world the database\r
-builder or service builder (publisher) does not exercise the same\r
-extensive control over the integrity of the presentation; strange\r
-programs "munge" with one's data before the user sees it. Serious\r
-thought must be given to what guarantees integrity of presentation. Part\r
-of that is related to where one draws the boundaries around a networked\r
-information service. This question of presentation integrity in\r
-client-server computing has not been stressed enough in the academic\r
-world, LYNCH argued, though commercial service providers deal with it\r
-regularly.\r
-\r
-Concerning multimedia, LYNCH observed that good multimedia at the moment\r
-is hideously expensive to produce. He recommended producing multimedia\r
-with either very high sale value, or multimedia with a very long life\r
-span, or multimedia that will have a very broad usage base and whose\r
-costs therefore can be amortized among large numbers of users. In this\r
-connection, historical and humanistically oriented material may be a good\r
-place to start, because it tends to have a longer life span than much of\r
-the scientific material, as well as a wider user base. LYNCH noted, for\r
-example, that American Memory fits many of the criteria outlined. He\r
-remarked the extensive discussion about bringing the Internet or the\r
-National Research and Education Network (NREN) into the K-12 environment\r
-as a way of helping the American educational system.\r
-\r
-LYNCH closed by noting that the kinds of applications demonstrated struck\r
-him as excellent justifications of broad-scale networking for K-12, but\r
-that at this time no "killer" application exists to mobilize the K-12\r
-community to obtain connectivity.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Dearth of genuinely interesting applications on the network\r
-a slow-changing situation * The issue of the integrity of presentation in\r
-a networked environment * Several reasons why CD-ROM software does not\r
-network *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the discussion period that followed LYNCH's presentation, several\r
-additional points were made.\r
-\r
-LYNCH reiterated even more strongly his contention that, historically,\r
-once one goes outside high-end science and the group of those who need\r
-access to supercomputers, there is a great dearth of genuinely\r
-interesting applications on the network. He saw this situation changing\r
-slowly, with some of the scientific databases and scholarly discussion\r
-groups and electronic journals coming on as well as with the availability\r
-of Wide Area Information Servers (WAIS) and some of the databases that\r
-are being mounted there. However, many of those things do not seem to\r
-have piqued great popular interest. For instance, most high school\r
-students of LYNCH's acquaintance would not qualify as devotees of serious\r
-molecular biology.\r
-\r
-Concerning the issue of the integrity of presentation, LYNCH believed\r
-that a couple of information providers have laid down the law at least on\r
-certain things. For example, his recollection was that the National\r
-Library of Medicine feels strongly that one needs to employ the\r
-identifier field if he or she is to mount a database commercially. The\r
-problem with a real networked environment is that one does not know who\r
-is reformatting and reprocessing one's data when one enters a client\r
-server mode. It becomes anybody's guess, for example, if the network\r
-uses a Z39.50 server, or what clients are doing with one's data. A data\r
-provider can say that his contract will only permit clients to have\r
-access to his data after he vets them and their presentation and makes\r
-certain it suits him. But LYNCH held out little expectation that the\r
-network marketplace would evolve in that way, because it required too\r
-much prior negotiation.\r
-\r
-CD-ROM software does not network for a variety of reasons, LYNCH said. \r
-He speculated that CD-ROM publishers are not eager to have their products\r
-really hook into wide area networks, because they fear it will make their\r
-data suppliers nervous. Moreover, until relatively recently, one had to\r
-be rather adroit to run a full TCP/IP stack plus applications on a\r
-PC-size machine, whereas nowadays it is becoming easier as PCs grow\r
-bigger and faster. LYNCH also speculated that software providers had not\r
-heard from their customers until the last year or so, or had not heard\r
-from enough of their customers.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-BESSER * Implications of disseminating images on the network; planning\r
-the distribution of multimedia documents poses two critical\r
-implementation problems * Layered approach represents the way to deal\r
-with users' capabilities * Problems in platform design; file size and its\r
-implications for networking * Transmission of megabyte size images\r
-impractical * Compression and decompression at the user's end * Promising\r
-trends for compression * A disadvantage of using X-Windows * A project at\r
-the Smithsonian that mounts images on several networks * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Howard BESSER, School of Library and Information Science, University of\r
-Pittsburgh, spoke primarily about multimedia, focusing on images and the\r
-broad implications of disseminating them on the network. He argued that\r
-planning the distribution of multimedia documents posed two critical\r
-implementation problems, which he framed in the form of two questions: \r
-1) What platform will one use and what hardware and software will users\r
-have for viewing of the material? and 2) How can one deliver a\r
-sufficiently robust set of information in an accessible format in a\r
-reasonable amount of time? Depending on whether network or CD-ROM is the\r
-medium used, this question raises different issues of storage,\r
-compression, and transmission.\r
-\r
-Concerning the design of platforms (e.g., sound, gray scale, simple\r
-color, etc.) and the various capabilities users may have, BESSER\r
-maintained that a layered approach was the way to deal with users'\r
-capabilities. A result would be that users with less powerful\r
-workstations would simply have less functionality. He urged members of\r
-the audience to advocate standards and accompanying software that handle\r
-layered functionality across a wide variety of platforms.\r
-\r
-BESSER also addressed problems in platform design, namely, deciding how\r
-large a machine to design for situations when the largest number of users\r
-have the lowest level of the machine, and one desires higher\r
-functionality. BESSER then proceeded to the question of file size and\r
-its implications for networking. He discussed still images in the main. \r
-For example, a digital color image that fills the screen of a standard\r
-mega-pel workstation (Sun or Next) will require one megabyte of storage\r
-for an eight-bit image or three megabytes of storage for a true color or\r
-twenty-four-bit image. Lossless compression algorithms (that is,\r
-computational procedures in which no data is lost in the process of\r
-compressing [and decompressing] an image--the exact bit-representation is\r
-maintained) might bring storage down to a third of a megabyte per image,\r
-but not much further than that. The question of size makes it difficult\r
-to fit an appropriately sized set of these images on a single disk or to\r
-transmit them quickly enough on a network.\r
-\r
-With these full screen mega-pel images that constitute a third of a\r
-megabyte, one gets 1,000-3,000 full-screen images on a one-gigabyte disk;\r
-a standard CD-ROM represents approximately 60 percent of that. Storing\r
-images the size of a PC screen (just 8 bit color) increases storage\r
-capacity to 4,000-12,000 images per gigabyte; 60 percent of that gives\r
-one the size of a CD-ROM, which in turn creates a major problem. One\r
-cannot have full-screen, full-color images with lossless compression; one\r
-must compress them or use a lower resolution. For megabyte-size images,\r
-anything slower than a T-1 speed is impractical. For example, on a\r
-fifty-six-kilobaud line, it takes three minutes to transfer a\r
-one-megabyte file, if it is not compressed; and this speed assumes ideal\r
-circumstances (no other user contending for network bandwidth). Thus,\r
-questions of disk access, remote display, and current telephone\r
-connection speed make transmission of megabyte-size images impractical.\r
-\r
-BESSER then discussed ways to deal with these large images, for example,\r
-compression and decompression at the user's end. In this connection, the\r
-issues of how much one is willing to lose in the compression process and\r
-what image quality one needs in the first place are unknown. But what is\r
-known is that compression entails some loss of data. BESSER urged that\r
-more studies be conducted on image quality in different situations, for\r
-example, what kind of images are needed for what kind of disciplines, and\r
-what kind of image quality is needed for a browsing tool, an intermediate\r
-viewing tool, and archiving.\r
-\r
-BESSER remarked two promising trends for compression: from a technical\r
-perspective, algorithms that use what is called subjective redundancy\r
-employ principles from visual psycho-physics to identify and remove\r
-information from the image that the human eye cannot perceive; from an\r
-interchange and interoperability perspective, the JPEG (i.e., Joint\r
-Photographic Experts Group, an ISO standard) compression algorithms also\r
-offer promise. These issues of compression and decompression, BESSER\r
-argued, resembled those raised earlier concerning the design of different\r
-platforms. Gauging the capabilities of potential users constitutes a\r
-primary goal. BESSER advocated layering or separating the images from\r
-the applications that retrieve and display them, to avoid tying them to\r
-particular software.\r
-\r
-BESSER detailed several lessons learned from his work at Berkeley with\r
-Imagequery, especially the advantages and disadvantages of using\r
-X-Windows. In the latter category, for example, retrieval is tied\r
-directly to one's data, an intolerable situation in the long run on a\r
-networked system. Finally, BESSER described a project of Jim Wallace at\r
-the Smithsonian Institution, who is mounting images in a extremely\r
-rudimentary way on the Compuserv and Genie networks and is preparing to\r
-mount them on America On Line. Although the average user takes over\r
-thirty minutes to download these images (assuming a fairly fast modem),\r
-nevertheless, images have been downloaded 25,000 times.\r
-\r
-BESSER concluded his talk with several comments on the business\r
-arrangement between the Smithsonian and Compuserv. He contended that not\r
-enough is known concerning the value of images.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Creating digitized photographic collections nearly\r
-impossible except with large organizations like museums * Need for study\r
-to determine quality of images users will tolerate *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the brief exchange between LESK and BESSER that followed, several\r
-clarifications emerged.\r
-\r
-LESK argued that the photographers were far ahead of BESSER: It is\r
-almost impossible to create such digitized photographic collections\r
-except with large organizations like museums, because all the\r
-photographic agencies have been going crazy about this and will not sign\r
-licensing agreements on any sort of reasonable terms. LESK had heard\r
-that National Geographic, for example, had tried to buy the right to use\r
-some image in some kind of educational production for $100 per image, but\r
-the photographers will not touch it. They want accounting and payment\r
-for each use, which cannot be accomplished within the system. BESSER\r
-responded that a consortium of photographers, headed by a former National\r
-Geographic photographer, had started assembling its own collection of\r
-electronic reproductions of images, with the money going back to the\r
-cooperative.\r
-\r
-LESK contended that BESSER was unnecessarily pessimistic about multimedia\r
-images, because people are accustomed to low-quality images, particularly\r
-from video. BESSER urged the launching of a study to determine what\r
-users would tolerate, what they would feel comfortable with, and what\r
-absolutely is the highest quality they would ever need. Conceding that\r
-he had adopted a dire tone in order to arouse people about the issue,\r
-BESSER closed on a sanguine note by saying that he would not be in this\r
-business if he did not think that things could be accomplished.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-LARSEN * Issues of scalability and modularity * Geometric growth of the\r
-Internet and the role played by layering * Basic functions sustaining\r
-this growth * A library's roles and functions in a network environment *\r
-Effects of implementation of the Z39.50 protocol for information\r
-retrieval on the library system * The trade-off between volumes of data\r
-and its potential usage * A snapshot of current trends *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Ronald LARSEN, associate director for information technology, University\r
-of Maryland at College Park, first addressed the issues of scalability\r
-and modularity. He noted the difficulty of anticipating the effects of\r
-orders-of-magnitude growth, reflecting on the twenty years of experience\r
-with the Arpanet and Internet. Recalling the day's demonstrations of\r
-CD-ROM and optical disk material, he went on to ask if the field has yet\r
-learned how to scale new systems to enable delivery and dissemination\r
-across large-scale networks.\r
-\r
-LARSEN focused on the geometric growth of the Internet from its inception\r
-circa 1969 to the present, and the adjustments required to respond to\r
-that rapid growth. To illustrate the issue of scalability, LARSEN\r
-considered computer networks as including three generic components: \r
-computers, network communication nodes, and communication media. Each\r
-component scales (e.g., computers range from PCs to supercomputers;\r
-network nodes scale from interface cards in a PC through sophisticated\r
-routers and gateways; and communication media range from 2,400-baud\r
-dial-up facilities through 4.5-Mbps backbone links, and eventually to\r
-multigigabit-per-second communication lines), and architecturally, the\r
-components are organized to scale hierarchically from local area networks\r
-to international-scale networks. Such growth is made possible by\r
-building layers of communication protocols, as BESSER pointed out.\r
-By layering both physically and logically, a sense of scalability is\r
-maintained from local area networks in offices, across campuses, through\r
-bridges, routers, campus backbones, fiber-optic links, etc., up into\r
-regional networks and ultimately into national and international\r
-networks.\r
-\r
-LARSEN then illustrated the geometric growth over a two-year period--\r
-through September 1991--of the number of networks that comprise the\r
-Internet. This growth has been sustained largely by the availability of\r
-three basic functions: electronic mail, file transfer (ftp), and remote\r
-log-on (telnet). LARSEN also reviewed the growth in the kind of traffic\r
-that occurs on the network. Network traffic reflects the joint contributions\r
-of a larger population of users and increasing use per user. Today one sees\r
-serious applications involving moving images across the network--a rarity\r
-ten years ago. LARSEN recalled and concurred with BESSER's main point\r
-that the interesting problems occur at the application level.\r
-\r
-LARSEN then illustrated a model of a library's roles and functions in a\r
-network environment. He noted, in particular, the placement of on-line\r
-catalogues onto the network and patrons obtaining access to the library\r
-increasingly through local networks, campus networks, and the Internet. \r
-LARSEN supported LYNCH's earlier suggestion that we need to address\r
-fundamental questions of networked information in order to build\r
-environments that scale in the information sense as well as in the\r
-physical sense.\r
-\r
-LARSEN supported the role of the library system as the access point into\r
-the nation's electronic collections. Implementation of the Z39.50\r
-protocol for information retrieval would make such access practical and\r
-feasible. For example, this would enable patrons in Maryland to search\r
-California libraries, or other libraries around the world that are\r
-conformant with Z39.50 in a manner that is familiar to University of\r
-Maryland patrons. This client-server model also supports moving beyond\r
-secondary content into primary content. (The notion of how one links\r
-from secondary content to primary content, LARSEN said, represents a\r
-fundamental problem that requires rigorous thought.) After noting\r
-numerous network experiments in accessing full-text materials, including\r
-projects supporting the ordering of materials across the network, LARSEN\r
-revisited the issue of transmitting high-density, high-resolution color\r
-images across the network and the large amounts of bandwidth they\r
-require. He went on to address the bandwidth and synchronization\r
-problems inherent in sending full-motion video across the network.\r
-\r
-LARSEN illustrated the trade-off between volumes of data in bytes or\r
-orders of magnitude and the potential usage of that data. He discussed\r
-transmission rates (particularly, the time it takes to move various forms\r
-of information), and what one could do with a network supporting\r
-multigigabit-per-second transmission. At the moment, the network\r
-environment includes a composite of data-transmission requirements,\r
-volumes and forms, going from steady to bursty (high-volume) and from\r
-very slow to very fast. This aggregate must be considered in the design,\r
-construction, and operation of multigigabyte networks.\r
-\r
-LARSEN's objective is to use the networks and library systems now being\r
-constructed to increase access to resources wherever they exist, and\r
-thus, to evolve toward an on-line electronic virtual library.\r
-\r
-LARSEN concluded by offering a snapshot of current trends: continuing\r
-geometric growth in network capacity and number of users; slower\r
-development of applications; and glacial development and adoption of\r
-standards. The challenge is to design and develop each new application\r
-system with network access and scalability in mind.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-BROWNRIGG * Access to the Internet cannot be taken for granted * Packet\r
-radio and the development of MELVYL in 1980-81 in the Division of Library\r
-Automation at the University of California * Design criteria for packet\r
-radio * A demonstration project in San Diego and future plans * Spread\r
-spectrum * Frequencies at which the radios will run and plans to\r
-reimplement the WAIS server software in the public domain * Need for an\r
-infrastructure of radios that do not move around * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Edwin BROWNRIGG, executive director, Memex Research Institute, first\r
-polled the audience in order to seek out regular users of the Internet as\r
-well as those planning to use it some time in the future. With nearly\r
-everybody in the room falling into one category or the other, BROWNRIGG\r
-made a point re access, namely that numerous individuals, especially those\r
-who use the Internet every day, take for granted their access to it, the\r
-speeds with which they are connected, and how well it all works. \r
-However, as BROWNRIGG discovered between 1987 and 1989 in Australia,\r
-if one wants access to the Internet but cannot afford it or has some\r
-physical boundary that prevents her or him from gaining access, it can\r
-be extremely frustrating. He suggested that because of economics and\r
-physical barriers we were beginning to create a world of haves and have-nots\r
-in the process of scholarly communication, even in the United States.\r
-\r
-BROWNRIGG detailed the development of MELVYL in academic year 1980-81 in\r
-the Division of Library Automation at the University of California, in\r
-order to underscore the issue of access to the system, which at the\r
-outset was extremely limited. In short, the project needed to build a\r
-network, which at that time entailed use of satellite technology, that is,\r
-putting earth stations on campus and also acquiring some terrestrial links\r
-from the State of California's microwave system. The installation of\r
-satellite links, however, did not solve the problem (which actually\r
-formed part of a larger problem involving politics and financial resources).\r
-For while the project team could get a signal onto a campus, it had no means\r
-of distributing the signal throughout the campus. The solution involved\r
-adopting a recent development in wireless communication called packet radio,\r
-which combined the basic notion of packet-switching with radio. The project\r
-used this technology to get the signal from a point on campus where it\r
-came down, an earth station for example, into the libraries, because it\r
-found that wiring the libraries, especially the older marble buildings,\r
-would cost $2,000-$5,000 per terminal.\r
-\r
-BROWNRIGG noted that, ten years ago, the project had neither the public\r
-policy nor the technology that would have allowed it to use packet radio\r
-in any meaningful way. Since then much had changed. He proceeded to\r
-detail research and development of the technology, how it is being\r
-deployed in California, and what direction he thought it would take.\r
-The design criteria are to produce a high-speed, one-time, low-cost,\r
-high-quality, secure, license-free device (packet radio) that one can\r
-plug in and play today, forget about it, and have access to the Internet. \r
-By high speed, BROWNRIGG meant 1 megabyte and 1.5 megabytes. Those units\r
-have been built, he continued, and are in the process of being\r
-type-certified by an independent underwriting laboratory so that they can\r
-be type-licensed by the Federal Communications Commission. As is the\r
-case with citizens band, one will be able to purchase a unit and not have\r
-to worry about applying for a license.\r
-\r
-The basic idea, BROWNRIGG elaborated, is to take high-speed radio data\r
-transmission and create a backbone network that at certain strategic\r
-points in the network will "gateway" into a medium-speed packet radio\r
-(i.e., one that runs at 38.4 kilobytes), so that perhaps by 1994-1995\r
-people, like those in the audience for the price of a VCR could purchase\r
-a medium-speed radio for the office or home, have full network connectivity\r
-to the Internet, and partake of all its services, with no need for an FCC\r
-license and no regular bill from the local common carrier. BROWNRIGG\r
-presented several details of a demonstration project currently taking\r
-place in San Diego and described plans, pending funding, to install a\r
-full-bore network in the San Francisco area. This network will have 600\r
-nodes running at backbone speeds, and 100 of these nodes will be libraries,\r
-which in turn will be the gateway ports to the 38.4 kilobyte radios that\r
-will give coverage for the neighborhoods surrounding the libraries.\r
-\r
-BROWNRIGG next explained Part 15.247, a new rule within Title 47 of the\r
-Code of Federal Regulations enacted by the FCC in 1985. This rule\r
-challenged the industry, which has only now risen to the occasion, to\r
-build a radio that would run at no more than one watt of output power and\r
-use a fairly exotic method of modulating the radio wave called spread\r
-spectrum. Spread spectrum in fact permits the building of networks so\r
-that numerous data communications can occur simultaneously, without\r
-interfering with each other, within the same wide radio channel.\r
-\r
-BROWNRIGG explained that the frequencies at which the radios would run\r
-are very short wave signals. They are well above standard microwave and\r
-radar. With a radio wave that small, one watt becomes a tremendous punch\r
-per bit and thus makes transmission at reasonable speed possible. In\r
-order to minimize the potential for congestion, the project is\r
-undertaking to reimplement software which has been available in the\r
-networking business and is taken for granted now, for example, TCP/IP,\r
-routing algorithms, bridges, and gateways. In addition, the project\r
-plans to take the WAIS server software in the public domain and\r
-reimplement it so that one can have a WAIS server on a Mac instead of a\r
-Unix machine. The Memex Research Institute believes that libraries, in\r
-particular, will want to use the WAIS servers with packet radio. This\r
-project, which has a team of about twelve people, will run through 1993\r
-and will include the 100 libraries already mentioned as well as other\r
-professionals such as those in the medical profession, engineering, and\r
-law. Thus, the need is to create an infrastructure of radios that do not\r
-move around, which, BROWNRIGG hopes, will solve a problem not only for\r
-libraries but for individuals who, by and large today, do not have access\r
-to the Internet from their homes and offices.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Project operating frequencies *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During a brief discussion period, which also concluded the day's\r
-proceedings, BROWNRIGG stated that the project was operating in four\r
-frequencies. The slow speed is operating at 435 megahertz, and it would\r
-later go up to 920 megahertz. With the high-speed frequency, the\r
-one-megabyte radios will run at 2.4 gigabits, and 1.5 will run at 5.7. \r
-At 5.7, rain can be a factor, but it would have to be tropical rain,\r
-unlike what falls in most parts of the United States.\r
-\r
- ******\r
-\r
-SESSION IV. IMAGE CAPTURE, TEXT CAPTURE, OVERVIEW OF TEXT AND\r
- IMAGE STORAGE FORMATS\r
-\r
-William HOOTON, vice president of operations, I-NET, moderated this session.\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-KENNEY * Factors influencing development of CXP * Advantages of using\r
-digital technology versus photocopy and microfilm * A primary goal of\r
-CXP; publishing challenges * Characteristics of copies printed * Quality\r
-of samples achieved in image capture * Several factors to be considered\r
-in choosing scanning * Emphasis of CXP on timely and cost-effective\r
-production of black-and-white printed facsimiles * Results of producing\r
-microfilm from digital files * Advantages of creating microfilm * Details\r
-concerning production * Costs * Role of digital technology in library\r
-preservation *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Anne KENNEY, associate director, Department of Preservation and\r
-Conservation, Cornell University, opened her talk by observing that the\r
-Cornell Xerox Project (CXP) has been guided by the assumption that the\r
-ability to produce printed facsimiles or to replace paper with paper\r
-would be important, at least for the present generation of users and\r
-equipment. She described three factors that influenced development of\r
-the project: 1) Because the project has emphasized the preservation of\r
-deteriorating brittle books, the quality of what was produced had to be\r
-sufficiently high to return a paper replacement to the shelf. CXP was\r
-only interested in using: 2) a system that was cost-effective, which\r
-meant that it had to be cost-competitive with the processes currently\r
-available, principally photocopy and microfilm, and 3) new or currently\r
-available product hardware and software.\r
-\r
-KENNEY described the advantages that using digital technology offers over\r
-both photocopy and microfilm: 1) The potential exists to create a higher\r
-quality reproduction of a deteriorating original than conventional\r
-light-lens technology. 2) Because a digital image is an encoded\r
-representation, it can be reproduced again and again with no resulting\r
-loss of quality, as opposed to the situation with light-lens processes,\r
-in which there is discernible difference between a second and a\r
-subsequent generation of an image. 3) A digital image can be manipulated\r
-in a number of ways to improve image capture; for example, Xerox has\r
-developed a windowing application that enables one to capture a page\r
-containing both text and illustrations in a manner that optimizes the\r
-reproduction of both. (With light-lens technology, one must choose which\r
-to optimize, text or the illustration; in preservation microfilming, the\r
-current practice is to shoot an illustrated page twice, once to highlight\r
-the text and the second time to provide the best capture for the\r
-illustration.) 4) A digital image can also be edited, density levels\r
-adjusted to remove underlining and stains, and to increase legibility for\r
-faint documents. 5) On-screen inspection can take place at the time of\r
-initial setup and adjustments made prior to scanning, factors that\r
-substantially reduce the number of retakes required in quality control.\r
-\r
-A primary goal of CXP has been to evaluate the paper output printed on\r
-the Xerox DocuTech, a high-speed printer that produces 600-dpi pages from\r
-scanned images at a rate of 135 pages a minute. KENNEY recounted several\r
-publishing challenges to represent faithful and legible reproductions of\r
-the originals that the 600-dpi copy for the most part successfully\r
-captured. For example, many of the deteriorating volumes in the project\r
-were heavily illustrated with fine line drawings or halftones or came in\r
-languages such as Japanese, in which the buildup of characters comprised\r
-of varying strokes is difficult to reproduce at lower resolutions; a\r
-surprising number of them came with annotations and mathematical\r
-formulas, which it was critical to be able to duplicate exactly.\r
-\r
-KENNEY noted that 1) the copies are being printed on paper that meets the\r
-ANSI standards for performance, 2) the DocuTech printer meets the machine\r
-and toner requirements for proper adhesion of print to page, as described\r
-by the National Archives, and thus 3) paper product is considered to be\r
-the archival equivalent of preservation photocopy.\r
-\r
-KENNEY then discussed several samples of the quality achieved in the\r
-project that had been distributed in a handout, for example, a copy of a\r
-print-on-demand version of the 1911 Reed lecture on the steam turbine,\r
-which contains halftones, line drawings, and illustrations embedded in\r
-text; the first four loose pages in the volume compared the capture\r
-capabilities of scanning to photocopy for a standard test target, the\r
-IEEE standard 167A 1987 test chart. In all instances scanning proved\r
-superior to photocopy, though only slightly more so in one.\r
-\r
-Conceding the simplistic nature of her review of the quality of scanning\r
-to photocopy, KENNEY described it as one representation of the kinds of\r
-settings that could be used with scanning capabilities on the equipment\r
-CXP uses. KENNEY also pointed out that CXP investigated the quality\r
-achieved with binary scanning only, and noted the great promise in gray\r
-scale and color scanning, whose advantages and disadvantages need to be\r
-examined. She argued further that scanning resolutions and file formats\r
-can represent a complex trade-off between the time it takes to capture\r
-material, file size, fidelity to the original, and on-screen display; and\r
-printing and equipment availability. All these factors must be taken\r
-into consideration.\r
-\r
-CXP placed primary emphasis on the production in a timely and\r
-cost-effective manner of printed facsimiles that consisted largely of\r
-black-and-white text. With binary scanning, large files may be\r
-compressed efficiently and in a lossless manner (i.e., no data is lost in\r
-the process of compressing [and decompressing] an image--the exact\r
-bit-representation is maintained) using Group 4 CCITT (i.e., the French\r
-acronym for International Consultative Committee for Telegraph and\r
-Telephone) compression. CXP was getting compression ratios of about\r
-forty to one. Gray-scale compression, which primarily uses JPEG, is much\r
-less economical and can represent a lossy compression (i.e., not\r
-lossless), so that as one compresses and decompresses, the illustration\r
-is subtly changed. While binary files produce a high-quality printed\r
-version, it appears 1) that other combinations of spatial resolution with\r
-gray and/or color hold great promise as well, and 2) that gray scale can\r
-represent a tremendous advantage for on-screen viewing. The quality\r
-associated with binary and gray scale also depends on the equipment used. \r
-For instance, binary scanning produces a much better copy on a binary\r
-printer.\r
-\r
-Among CXP's findings concerning the production of microfilm from digital\r
-files, KENNEY reported that the digital files for the same Reed lecture\r
-were used to produce sample film using an electron beam recorder. The\r
-resulting film was faithful to the image capture of the digital files,\r
-and while CXP felt that the text and image pages represented in the Reed\r
-lecture were superior to that of the light-lens film, the resolution\r
-readings for the 600 dpi were not as high as standard microfilming. \r
-KENNEY argued that the standards defined for light-lens technology are\r
-not totally transferable to a digital environment. Moreover, they are\r
-based on definition of quality for a preservation copy. Although making\r
-this case will prove to be a long, uphill struggle, CXP plans to continue\r
-to investigate the issue over the course of the next year.\r
-\r
-KENNEY concluded this portion of her talk with a discussion of the\r
-advantages of creating film: it can serve as a primary backup and as a\r
-preservation master to the digital file; it could then become the print\r
-or production master and service copies could be paper, film, optical\r
-disks, magnetic media, or on-screen display.\r
-\r
-Finally, KENNEY presented details re production:\r
-\r
- * Development and testing of a moderately-high resolution production\r
- scanning workstation represented a third goal of CXP; to date, 1,000\r
- volumes have been scanned, or about 300,000 images.\r
-\r
- * The resulting digital files are stored and used to produce\r
- hard-copy replacements for the originals and additional prints on\r
- demand; although the initial costs are high, scanning technology\r
- offers an affordable means for reformatting brittle material.\r
-\r
- * A technician in production mode can scan 300 pages per hour when\r
- performing single-sheet scanning, which is a necessity when working\r
- with truly brittle paper; this figure is expected to increase\r
- significantly with subsequent iterations of the software from Xerox;\r
- a three-month time-and-cost study of scanning found that the average\r
- 300-page book would take about an hour and forty minutes to scan\r
- (this figure included the time for setup, which involves keying in\r
- primary bibliographic data, going into quality control mode to\r
- define page size, establishing front-to-back registration, and\r
- scanning sample pages to identify a default range of settings for\r
- the entire book--functions not dissimilar to those performed by\r
- filmers or those preparing a book for photocopy).\r
-\r
- * The final step in the scanning process involved rescans, which\r
- happily were few and far between, representing well under 1 percent\r
- of the total pages scanned.\r
-\r
-In addition to technician time, CXP costed out equipment, amortized over\r
-four years, the cost of storing and refreshing the digital files every\r
-four years, and the cost of printing and binding, book-cloth binding, a\r
-paper reproduction. The total amounted to a little under $65 per single\r
-300-page volume, with 30 percent overhead included--a figure competitive\r
-with the prices currently charged by photocopy vendors.\r
-\r
-Of course, with scanning, in addition to the paper facsimile, one is left\r
-with a digital file from which subsequent copies of the book can be\r
-produced for a fraction of the cost of photocopy, with readers afforded\r
-choices in the form of these copies.\r
-\r
-KENNEY concluded that digital technology offers an electronic means for a\r
-library preservation effort to pay for itself. If a brittle-book program\r
-included the means of disseminating reprints of books that are in demand\r
-by libraries and researchers alike, the initial investment in capture\r
-could be recovered and used to preserve additional but less popular\r
-books. She disclosed that an economic model for a self-sustaining\r
-program could be developed for CXP's report to the Commission on\r
-Preservation and Access (CPA).\r
-\r
-KENNEY stressed that the focus of CXP has been on obtaining high quality\r
-in a production environment. The use of digital technology is viewed as\r
-an affordable alternative to other reformatting options.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-ANDRE * Overview and history of NATDP * Various agricultural CD-ROM\r
-products created inhouse and by service bureaus * Pilot project on\r
-Internet transmission * Additional products in progress *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Pamela ANDRE, associate director for automation, National Agricultural\r
-Text Digitizing Program (NATDP), National Agricultural Library (NAL),\r
-presented an overview of NATDP, which has been underway at NAL the last\r
-four years, before Judith ZIDAR discussed the technical details. ANDRE\r
-defined agricultural information as a broad range of material going from\r
-basic and applied research in the hard sciences to the one-page pamphlets\r
-that are distributed by the cooperative state extension services on such\r
-things as how to grow blueberries.\r
-\r
-NATDP began in late 1986 with a meeting of representatives from the\r
-land-grant library community to deal with the issue of electronic\r
-information. NAL and forty-five of these libraries banded together to\r
-establish this project--to evaluate the technology for converting what\r
-were then source documents in paper form into electronic form, to provide\r
-access to that digital information, and then to distribute it. \r
-Distributing that material to the community--the university community as\r
-well as the extension service community, potentially down to the county\r
-level--constituted the group's chief concern.\r
-\r
-Since January 1988 (when the microcomputer-based scanning system was\r
-installed at NAL), NATDP has done a variety of things, concerning which\r
-ZIDAR would provide further details. For example, the first technology\r
-considered in the project's discussion phase was digital videodisc, which\r
-indicates how long ago it was conceived.\r
-\r
-Over the four years of this project, four separate CD-ROM products on\r
-four different agricultural topics were created, two at a\r
-scanning-and-OCR station installed at NAL, and two by service bureaus. \r
-Thus, NATDP has gained comparative information in terms of those relative\r
-costs. Each of these products contained the full ASCII text as well as\r
-page images of the material, or between 4,000 and 6,000 pages of material\r
-on these disks. Topics included aquaculture, food, agriculture and\r
-science (i.e., international agriculture and research), acid rain, and\r
-Agent Orange, which was the final product distributed (approximately\r
-eighteen months before the Workshop).\r
-\r
-The third phase of NATDP focused on delivery mechanisms other than\r
-CD-ROM. At the suggestion of Clifford LYNCH, who was a technical\r
-consultant to the project at this point, NATDP became involved with the\r
-Internet and initiated a project with the help of North Carolina State\r
-University, in which fourteen of the land-grant university libraries are\r
-transmitting digital images over the Internet in response to interlibrary\r
-loan requests--a topic for another meeting. At this point, the pilot\r
-project had been completed for about a year and the final report would be\r
-available shortly after the Workshop. In the meantime, the project's\r
-success had led to its extension. (ANDRE noted that one of the first\r
-things done under the program title was to select a retrieval package to\r
-use with subsequent products; Windows Personal Librarian was the package\r
-of choice after a lengthy evaluation.)\r
- \r
-Three additional products had been planned and were in progress:\r
-\r
- 1) An arrangement with the American Society of Agronomy--a\r
- professional society that has published the Agronomy Journal since\r
- about 1908--to scan and create bit-mapped images of its journal. \r
- ASA granted permission first to put and then to distribute this\r
- material in electronic form, to hold it at NAL, and to use these\r
- electronic images as a mechanism to deliver documents or print out\r
- material for patrons, among other uses. Effectively, NAL has the\r
- right to use this material in support of its program. \r
- (Significantly, this arrangement offers a potential cooperative\r
- model for working with other professional societies in agriculture\r
- to try to do the same thing--put the journals of particular interest\r
- to agriculture research into electronic form.)\r
-\r
- 2) An extension of the earlier product on aquaculture.\r
-\r
- 3) The George Washington Carver Papers--a joint project with\r
- Tuskegee University to scan and convert from microfilm some 3,500\r
- images of Carver's papers, letters, and drawings.\r
-\r
-It was anticipated that all of these products would appear no more than\r
-six months after the Workshop.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-ZIDAR * (A separate arena for scanning) * Steps in creating a database *\r
-Image capture, with and without performing OCR * Keying in tracking data\r
-* Scanning, with electronic and manual tracking * Adjustments during\r
-scanning process * Scanning resolutions * Compression * De-skewing and\r
-filtering * Image capture from microform: the papers and letters of\r
-George Washington Carver * Equipment used for a scanning system * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Judith ZIDAR, coordinator, National Agricultural Text Digitizing Program\r
-(NATDP), National Agricultural Library (NAL), illustrated the technical\r
-details of NATDP, including her primary responsibility, scanning and\r
-creating databases on a topic and putting them on CD-ROM.\r
-\r
-(ZIDAR remarked a separate arena from the CD-ROM projects, although the\r
-processing of the material is nearly identical, in which NATDP is also\r
-scanning material and loading it on a Next microcomputer, which in turn\r
-is linked to NAL's integrated library system. Thus, searches in NAL's\r
-bibliographic database will enable people to pull up actual page images\r
-and text for any documents that have been entered.)\r
-\r
-In accordance with the session's topic, ZIDAR focused her illustrated\r
-talk on image capture, offering a primer on the three main steps in the\r
-process: 1) assemble the printed publications; 2) design the database\r
-(database design occurs in the process of preparing the material for\r
-scanning; this step entails reviewing and organizing the material,\r
-defining the contents--what will constitute a record, what kinds of\r
-fields will be captured in terms of author, title, etc.); 3) perform a\r
-certain amount of markup on the paper publications. NAL performs this\r
-task record by record, preparing work sheets or some other sort of\r
-tracking material and designing descriptors and other enhancements to be\r
-added to the data that will not be captured from the printed publication. \r
-Part of this process also involves determining NATDP's file and directory\r
-structure: NATDP attempts to avoid putting more than approximately 100\r
-images in a directory, because placing more than that on a CD-ROM would\r
-reduce the access speed.\r
-\r
-This up-front process takes approximately two weeks for a\r
-6,000-7,000-page database. The next step is to capture the page images. \r
-How long this process takes is determined by the decision whether or not\r
-to perform OCR. Not performing OCR speeds the process, whereas text\r
-capture requires greater care because of the quality of the image: it\r
-has to be straighter and allowance must be made for text on a page, not\r
-just for the capture of photographs.\r
-\r
-NATDP keys in tracking data, that is, a standard bibliographic record\r
-including the title of the book and the title of the chapter, which will\r
-later either become the access information or will be attached to the\r
-front of a full-text record so that it is searchable.\r
-\r
-Images are scanned from a bound or unbound publication, chiefly from\r
-bound publications in the case of NATDP, however, because often they are\r
-the only copies and the publications are returned to the shelves. NATDP\r
-usually scans one record at a time, because its database tracking system\r
-tracks the document in that way and does not require further logical\r
-separating of the images. After performing optical character\r
-recognition, NATDP moves the images off the hard disk and maintains a\r
-volume sheet. Though the system tracks electronically, all the\r
-processing steps are also tracked manually with a log sheet.\r
-\r
-ZIDAR next illustrated the kinds of adjustments that one can make when\r
-scanning from paper and microfilm, for example, redoing images that need\r
-special handling, setting for dithering or gray scale, and adjusting for\r
-brightness or for the whole book at one time.\r
-\r
-NATDP is scanning at 300 dots per inch, a standard scanning resolution. \r
-Though adequate for capturing text that is all of a standard size, 300\r
-dpi is unsuitable for any kind of photographic material or for very small\r
-text. Many scanners allow for different image formats, TIFF, of course,\r
-being a de facto standard. But if one intends to exchange images with\r
-other people, the ability to scan other image formats, even if they are\r
-less common, becomes highly desirable.\r
-\r
-CCITT Group 4 is the standard compression for normal black-and-white\r
-images, JPEG for gray scale or color. ZIDAR recommended 1) using the\r
-standard compressions, particularly if one attempts to make material\r
-available and to allow users to download images and reuse them from\r
-CD-ROMs; and 2) maintaining the ability to output an uncompressed image,\r
-because in image exchange uncompressed images are more likely to be able\r
-to cross platforms.\r
-\r
-ZIDAR emphasized the importance of de-skewing and filtering as\r
-requirements on NATDP's upgraded system. For instance, scanning bound\r
-books, particularly books published by the federal government whose pages\r
-are skewed, and trying to scan them straight if OCR is to be performed,\r
-is extremely time-consuming. The same holds for filtering of\r
-poor-quality or older materials.\r
-\r
-ZIDAR described image capture from microform, using as an example three\r
-reels from a sixty-seven-reel set of the papers and letters of George\r
-Washington Carver that had been produced by Tuskegee University. These\r
-resulted in approximately 3,500 images, which NATDP had had scanned by\r
-its service contractor, Science Applications International Corporation\r
-(SAIC). NATDP also created bibliographic records for access. (NATDP did\r
-not have such specialized equipment as a microfilm scanner.\r
-\r
-Unfortunately, the process of scanning from microfilm was not an\r
-unqualified success, ZIDAR reported: because microfilm frame sizes vary,\r
-occasionally some frames were missed, which without spending much time\r
-and money could not be recaptured.\r
-\r
-OCR could not be performed from the scanned images of the frames. The\r
-bleeding in the text simply output text, when OCR was run, that could not\r
-even be edited. NATDP tested for negative versus positive images,\r
-landscape versus portrait orientation, and single- versus dual-page\r
-microfilm, none of which seemed to affect the quality of the image; but\r
-also on none of them could OCR be performed.\r
-\r
-In selecting the microfilm they would use, therefore, NATDP had other\r
-factors in mind. ZIDAR noted two factors that influenced the quality of\r
-the images: 1) the inherent quality of the original and 2) the amount of\r
-size reduction on the pages.\r
-\r
-The Carver papers were selected because they are informative and visually\r
-interesting, treat a single subject, and are valuable in their own right. \r
-The images were scanned and divided into logical records by SAIC, then\r
-delivered, and loaded onto NATDP's system, where bibliographic\r
-information taken directly from the images was added. Scanning was\r
-completed in summer 1991 and by the end of summer 1992 the disk was\r
-scheduled to be published.\r
-\r
-Problems encountered during processing included the following: Because\r
-the microfilm scanning had to be done in a batch, adjustment for\r
-individual page variations was not possible. The frame size varied on\r
-account of the nature of the material, and therefore some of the frames\r
-were missed while others were just partial frames. The only way to go\r
-back and capture this material was to print out the page with the\r
-microfilm reader from the missing frame and then scan it in from the\r
-page, which was extremely time-consuming. The quality of the images\r
-scanned from the printout of the microfilm compared unfavorably with that\r
-of the original images captured directly from the microfilm. The\r
-inability to perform OCR also was a major disappointment. At the time,\r
-computer output microfilm was unavailable to test.\r
-\r
-The equipment used for a scanning system was the last topic addressed by\r
-ZIDAR. The type of equipment that one would purchase for a scanning\r
-system included: a microcomputer, at least a 386, but preferably a 486;\r
-a large hard disk, 380 megabyte at minimum; a multi-tasking operating\r
-system that allows one to run some things in batch in the background\r
-while scanning or doing text editing, for example, Unix or OS/2 and,\r
-theoretically, Windows; a high-speed scanner and scanning software that\r
-allows one to make the various adjustments mentioned earlier; a\r
-high-resolution monitor (150 dpi ); OCR software and hardware to perform\r
-text recognition; an optical disk subsystem on which to archive all the\r
-images as the processing is done; file management and tracking software.\r
-\r
-ZIDAR opined that the software one purchases was more important than the\r
-hardware and might also cost more than the hardware, but it was likely to\r
-prove critical to the success or failure of one's system. In addition to\r
-a stand-alone scanning workstation for image capture, then, text capture\r
-requires one or two editing stations networked to this scanning station\r
-to perform editing. Editing the text takes two or three times as long as\r
-capturing the images.\r
-\r
-Finally, ZIDAR stressed the importance of buying an open system that allows\r
-for more than one vendor, complies with standards, and can be upgraded.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-WATERS *Yale University Library's master plan to convert microfilm to\r
-digital imagery (POB) * The place of electronic tools in the library of\r
-the future * The uses of images and an image library * Primary input from\r
-preservation microfilm * Features distinguishing POB from CXP and key\r
-hypotheses guiding POB * Use of vendor selection process to facilitate\r
-organizational work * Criteria for selecting vendor * Finalists and\r
-results of process for Yale * Key factor distinguishing vendors *\r
-Components, design principles, and some estimated costs of POB * Role of\r
-preservation materials in developing imaging market * Factors affecting\r
-quality and cost * Factors affecting the usability of complex documents\r
-in image form * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Donald WATERS, head of the Systems Office, Yale University Library,\r
-reported on the progress of a master plan for a project at Yale to\r
-convert microfilm to digital imagery, Project Open Book (POB). Stating\r
-that POB was in an advanced stage of planning, WATERS detailed, in\r
-particular, the process of selecting a vendor partner and several key\r
-issues under discussion as Yale prepares to move into the project itself. \r
-He commented first on the vision that serves as the context of POB and\r
-then described its purpose and scope.\r
-\r
-WATERS sees the library of the future not necessarily as an electronic\r
-library but as a place that generates, preserves, and improves for its\r
-clients ready access to both intellectual and physical recorded\r
-knowledge. Electronic tools must find a place in the library in the\r
-context of this vision. Several roles for electronic tools include\r
-serving as: indirect sources of electronic knowledge or as "finding"\r
-aids (the on-line catalogues, the article-level indices, registers for\r
-documents and archives); direct sources of recorded knowledge; full-text\r
-images; and various kinds of compound sources of recorded knowledge (the\r
-so-called compound documents of Hypertext, mixed text and image,\r
-mixed-text image format, and multimedia).\r
-\r
-POB is looking particularly at images and an image library, the uses to\r
-which images will be put (e.g., storage, printing, browsing, and then use\r
-as input for other processes), OCR as a subsequent process to image\r
-capture, or creating an image library, and also possibly generating\r
-microfilm.\r
-\r
-While input will come from a variety of sources, POB is considering\r
-especially input from preservation microfilm. A possible outcome is that\r
-the film and paper which provide the input for the image library\r
-eventually may go off into remote storage, and that the image library may\r
-be the primary access tool.\r
-\r
-The purpose and scope of POB focus on imaging. Though related to CXP,\r
-POB has two features which distinguish it: 1) scale--conversion of\r
-10,000 volumes into digital image form; and 2) source--conversion from\r
-microfilm. Given these features, several key working hypotheses guide\r
-POB, including: 1) Since POB is using microfilm, it is not concerned with\r
-the image library as a preservation medium. 2) Digital imagery can improve\r
-access to recorded knowledge through printing and network distribution at\r
-a modest incremental cost of microfilm. 3) Capturing and storing documents\r
-in a digital image form is necessary to further improvements in access.\r
-(POB distinguishes between the imaging, digitizing process and OCR,\r
-which at this stage it does not plan to perform.)\r
-\r
-Currently in its first or organizational phase, POB found that it could\r
-use a vendor selection process to facilitate a good deal of the\r
-organizational work (e.g., creating a project team and advisory board,\r
-confirming the validity of the plan, establishing the cost of the project\r
-and a budget, selecting the materials to convert, and then raising the\r
-necessary funds).\r
-\r
-POB developed numerous selection criteria, including: a firm committed\r
-to image-document management, the ability to serve as systems integrator\r
-in a large-scale project over several years, interest in developing the\r
-requisite software as a standard rather than a custom product, and a\r
-willingness to invest substantial resources in the project itself.\r
-\r
-Two vendors, DEC and Xerox, were selected as finalists in October 1991,\r
-and with the support of the Commission on Preservation and Access, each\r
-was commissioned to generate a detailed requirements analysis for the\r
-project and then to submit a formal proposal for the completion of the\r
-project, which included a budget and costs. The terms were that POB would\r
-pay the loser. The results for Yale of involving a vendor included: \r
-broad involvement of Yale staff across the board at a relatively low\r
-cost, which may have long-term significance in carrying out the project\r
-(twenty-five to thirty university people are engaged in POB); better\r
-understanding of the factors that affect corporate response to markets\r
-for imaging products; a competitive proposal; and a more sophisticated\r
-view of the imaging markets.\r
-\r
-The most important factor that distinguished the vendors under\r
-consideration was their identification with the customer. The size and\r
-internal complexity of the company also was an important factor. POB was\r
-looking at large companies that had substantial resources. In the end,\r
-the process generated for Yale two competitive proposals, with Xerox's\r
-the clear winner. WATERS then described the components of the proposal,\r
-the design principles, and some of the costs estimated for the process.\r
-\r
-Components are essentially four: a conversion subsystem, a\r
-network-accessible storage subsystem for 10,000 books (and POB expects\r
-200 to 600 dpi storage), browsing stations distributed on the campus\r
-network, and network access to the image printers.\r
-\r
-Among the design principles, POB wanted conversion at the highest\r
-possible resolution. Assuming TIFF files, TIFF files with Group 4\r
-compression, TCP/IP, and ethernet network on campus, POB wanted a\r
-client-server approach with image documents distributed to the\r
-workstations and made accessible through native workstation interfaces\r
-such as Windows. POB also insisted on a phased approach to\r
-implementation: 1) a stand-alone, single-user, low-cost entry into the\r
-business with a workstation focused on conversion and allowing POB to\r
-explore user access; 2) movement into a higher-volume conversion with\r
-network-accessible storage and multiple access stations; and 3) a\r
-high-volume conversion, full-capacity storage, and multiple browsing\r
-stations distributed throughout the campus.\r
-\r
-The costs proposed for start-up assumed the existence of the Yale network\r
-and its two DocuTech image printers. Other start-up costs are estimated\r
-at $1 million over the three phases. At the end of the project, the annual\r
-operating costs estimated primarily for the software and hardware proposed\r
-come to about $60,000, but these exclude costs for labor needed in the\r
-conversion process, network and printer usage, and facilities management.\r
-\r
-Finally, the selection process produced for Yale a more sophisticated\r
-view of the imaging markets: the management of complex documents in\r
-image form is not a preservation problem, not a library problem, but a\r
-general problem in a broad, general industry. Preservation materials are\r
-useful for developing that market because of the qualities of the\r
-material. For example, much of it is out of copyright. The resolution\r
-of key issues such as the quality of scanning and image browsing also\r
-will affect development of that market.\r
-\r
-The technology is readily available but changing rapidly. In this\r
-context of rapid change, several factors affect quality and cost, to\r
-which POB intends to pay particular attention, for example, the various\r
-levels of resolution that can be achieved. POB believes it can bring\r
-resolution up to 600 dpi, but an interpolation process from 400 to 600 is\r
-more likely. The variation quality in microfilm will prove to be a\r
-highly important factor. POB may reexamine the standards used to film in\r
-the first place by looking at this process as a follow-on to microfilming.\r
-\r
-Other important factors include: the techniques available to the\r
-operator for handling material, the ways of integrating quality control\r
-into the digitizing work flow, and a work flow that includes indexing and\r
-storage. POB's requirement was to be able to deal with quality control\r
-at the point of scanning. Thus, thanks to Xerox, POB anticipates having\r
-a mechanism which will allow it not only to scan in batch form, but to\r
-review the material as it goes through the scanner and control quality\r
-from the outset.\r
-\r
-The standards for measuring quality and costs depend greatly on the uses\r
-of the material, including subsequent OCR, storage, printing, and\r
-browsing. But especially at issue for POB is the facility for browsing. \r
-This facility, WATERS said, is perhaps the weakest aspect of imaging\r
-technology and the most in need of development.\r
-\r
-A variety of factors affect the usability of complex documents in image\r
-form, among them: 1) the ability of the system to handle the full range\r
-of document types, not just monographs but serials, multi-part\r
-monographs, and manuscripts; 2) the location of the database of record\r
-for bibliographic information about the image document, which POB wants\r
-to enter once and in the most useful place, the on-line catalog; 3) a\r
-document identifier for referencing the bibliographic information in one\r
-place and the images in another; 4) the technique for making the basic\r
-internal structure of the document accessible to the reader; and finally,\r
-5) the physical presentation on the CRT of those documents. POB is ready\r
-to complete this phase now. One last decision involves deciding which\r
-material to scan.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * TIFF files constitute de facto standard * NARA's experience\r
-with image conversion software and text conversion * RFC 1314 *\r
-Considerable flux concerning available hardware and software solutions *\r
-NAL through-put rate during scanning * Window management questions *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-In the question-and-answer period that followed WATERS's presentation,\r
-the following points emerged:\r
-\r
- * ZIDAR's statement about using TIFF files as a standard meant de\r
- facto standard. This is what most people use and typically exchange\r
- with other groups, across platforms, or even occasionally across\r
- display software.\r
-\r
- * HOLMES commented on the unsuccessful experience of NARA in\r
- attempting to run image-conversion software or to exchange between\r
- applications: What are supposedly TIFF files go into other software\r
- that is supposed to be able to accept TIFF but cannot recognize the\r
- format and cannot deal with it, and thus renders the exchange\r
- useless. Re text conversion, he noted the different recognition\r
- rates obtained by substituting the make and model of scanners in\r
- NARA's recent test of an "intelligent" character-recognition product\r
- for a new company. In the selection of hardware and software,\r
- HOLMES argued, software no longer constitutes the overriding factor\r
- it did until about a year ago; rather it is perhaps important to\r
- look at both now.\r
-\r
- * Danny Cohen and Alan Katz of the University of Southern California\r
- Information Sciences Institute began circulating as an Internet RFC\r
- (RFC 1314) about a month ago a standard for a TIFF interchange\r
- format for Internet distribution of monochrome bit-mapped images,\r
- which LYNCH said he believed would be used as a de facto standard.\r
-\r
- * FLEISCHHAUER's impression from hearing these reports and thinking\r
- about AM's experience was that there is considerable flux concerning\r
- available hardware and software solutions. HOOTON agreed and\r
- commented at the same time on ZIDAR's statement that the equipment\r
- employed affects the results produced. One cannot draw a complete\r
- conclusion by saying it is difficult or impossible to perform OCR\r
- from scanning microfilm, for example, with that device, that set of\r
- parameters, and system requirements, because numerous other people\r
- are accomplishing just that, using other components, perhaps. \r
- HOOTON opined that both the hardware and the software were highly\r
- important. Most of the problems discussed today have been solved in\r
- numerous different ways by other people. Though it is good to be\r
- cognizant of various experiences, this is not to say that it will\r
- always be thus.\r
-\r
- * At NAL, the through-put rate of the scanning process for paper,\r
- page by page, performing OCR, ranges from 300 to 600 pages per day;\r
- not performing OCR is considerably faster, although how much faster\r
- is not known. This is for scanning from bound books, which is much\r
- slower.\r
-\r
- * WATERS commented on window management questions: DEC proposed an\r
- X-Windows solution which was problematical for two reasons. One was\r
- POB's requirement to be able to manipulate images on the workstation\r
- and bring them down to the workstation itself and the other was\r
- network usage.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-THOMA * Illustration of deficiencies in scanning and storage process *\r
-Image quality in this process * Different costs entailed by better image\r
-quality * Techniques for overcoming various de-ficiencies: fixed\r
-thresholding, dynamic thresholding, dithering, image merge * Page edge\r
-effects * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-George THOMA, chief, Communications Engineering Branch, National Library\r
-of Medicine (NLM), illustrated several of the deficiencies discussed by\r
-the previous speakers. He introduced the topic of special problems by\r
-noting the advantages of electronic imaging. For example, it is regenerable\r
-because it is a coded file, and real-time quality control is possible with\r
-electronic capture, whereas in photographic capture it is not.\r
-\r
-One of the difficulties discussed in the scanning and storage process was\r
-image quality which, without belaboring the obvious, means different\r
-things for maps, medical X-rays, or broadcast television. In the case of\r
-documents, THOMA said, image quality boils down to legibility of the\r
-textual parts, and fidelity in the case of gray or color photo print-type\r
-material. Legibility boils down to scan density, the standard in most\r
-cases being 300 dpi. Increasing the resolution with scanners that\r
-perform 600 or 1200 dpi, however, comes at a cost.\r
-\r
-Better image quality entails at least four different kinds of costs: 1)\r
-equipment costs, because the CCD (i.e., charge-couple device) with\r
-greater number of elements costs more; 2) time costs that translate to\r
-the actual capture costs, because manual labor is involved (the time is\r
-also dependent on the fact that more data has to be moved around in the\r
-machine in the scanning or network devices that perform the scanning as\r
-well as the storage); 3) media costs, because at high resolutions larger\r
-files have to be stored; and 4) transmission costs, because there is just\r
-more data to be transmitted.\r
-\r
-But while resolution takes care of the issue of legibility in image\r
-quality, other deficiencies have to do with contrast and elements on the\r
-page scanned or the image that needed to be removed or clarified. Thus,\r
-THOMA proceeded to illustrate various deficiencies, how they are\r
-manifested, and several techniques to overcome them.\r
-\r
-Fixed thresholding was the first technique described, suitable for\r
-black-and-white text, when the contrast does not vary over the page. One\r
-can have many different threshold levels in scanning devices. Thus,\r
-THOMA offered an example of extremely poor contrast, which resulted from\r
-the fact that the stock was a heavy red. This is the sort of image that\r
-when microfilmed fails to provide any legibility whatsoever. Fixed\r
-thresholding is the way to change the black-to-red contrast to the\r
-desired black-to-white contrast.\r
-\r
-Other examples included material that had been browned or yellowed by\r
-age. This was also a case of contrast deficiency, and correction was\r
-done by fixed thresholding. A final example boils down to the same\r
-thing, slight variability, but it is not significant. Fixed thresholding\r
-solves this problem as well. The microfilm equivalent is certainly legible,\r
-but it comes with dark areas. Though THOMA did not have a slide of the\r
-microfilm in this case, he did show the reproduced electronic image.\r
-\r
-When one has variable contrast over a page or the lighting over the page\r
-area varies, especially in the case where a bound volume has light\r
-shining on it, the image must be processed by a dynamic thresholding\r
-scheme. One scheme, dynamic averaging, allows the threshold level not to\r
-be fixed but to be recomputed for every pixel from the neighboring\r
-characteristics. The neighbors of a pixel determine where the threshold\r
-should be set for that pixel.\r
-\r
-THOMA showed an example of a page that had been made deficient by a\r
-variety of techniques, including a burn mark, coffee stains, and a yellow\r
-marker. Application of a fixed-thresholding scheme, THOMA argued, might\r
-take care of several deficiencies on the page but not all of them. \r
-Performing the calculation for a dynamic threshold setting, however,\r
-removes most of the deficiencies so that at least the text is legible.\r
-\r
-Another problem is representing a gray level with black-and-white pixels\r
-by a process known as dithering or electronic screening. But dithering\r
-does not provide good image quality for pure black-and-white textual\r
-material. THOMA illustrated this point with examples. Although its\r
-suitability for photoprint is the reason for electronic screening or\r
-dithering, it cannot be used for every compound image. In the document\r
-that was distributed by CXP, THOMA noticed that the dithered image of the\r
-IEEE test chart evinced some deterioration in the text. He presented an\r
-extreme example of deterioration in the text in which compounded\r
-documents had to be set right by other techniques. The technique\r
-illustrated by the present example was an image merge in which the page\r
-is scanned twice and the settings go from fixed threshold to the\r
-dithering matrix; the resulting images are merged to give the best\r
-results with each technique.\r
-\r
-THOMA illustrated how dithering is also used in nonphotographic or\r
-nonprint materials with an example of a grayish page from a medical text,\r
-which was reproduced to show all of the gray that appeared in the\r
-original. Dithering provided a reproduction of all the gray in the\r
-original of another example from the same text.\r
-\r
-THOMA finally illustrated the problem of bordering, or page-edge,\r
-effects. Books and bound volumes that are placed on a photocopy machine\r
-or a scanner produce page-edge effects that are undesirable for two\r
-reasons: 1) the aesthetics of the image; after all, if the image is to\r
-be preserved, one does not necessarily want to keep all of its\r
-deficiencies; 2) compression (with the bordering problem THOMA\r
-illustrated, the compression ratio deteriorated tremendously). One way\r
-to eliminate this more serious problem is to have the operator at the\r
-point of scanning window the part of the image that is desirable and\r
-automatically turn all of the pixels out of that picture to white. \r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-FLEISCHHAUER * AM's experience with scanning bound materials * Dithering\r
-*\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Carl FLEISCHHAUER, coordinator, American Memory, Library of Congress,\r
-reported AM's experience with scanning bound materials, which he likened\r
-to the problems involved in using photocopying machines. Very few\r
-devices in the industry offer book-edge scanning, let alone book cradles. \r
-The problem may be unsolvable, FLEISCHHAUER said, because a large enough\r
-market does not exist for a preservation-quality scanner. AM is using a\r
-Kurzweil scanner, which is a book-edge scanner now sold by Xerox.\r
-\r
-Devoting the remainder of his brief presentation to dithering,\r
-FLEISCHHAUER related AM's experience with a contractor who was using\r
-unsophisticated equipment and software to reduce moire patterns from\r
-printed halftones. AM took the same image and used the dithering\r
-algorithm that forms part of the same Kurzweil Xerox scanner; it\r
-disguised moire patterns much more effectively.\r
-\r
-FLEISCHHAUER also observed that dithering produces a binary file which is\r
-useful for numerous purposes, for example, printing it on a laser printer\r
-without having to "re-halftone" it. But it tends to defeat efficient\r
-compression, because the very thing that dithers to reduce moire patterns\r
-also tends to work against compression schemes. AM thought the\r
-difference in image quality was worth it.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Relative use as a criterion for POB's selection of books to\r
-be converted into digital form *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the discussion period, WATERS noted that one of the criteria for\r
-selecting books among the 10,000 to be converted into digital image form\r
-would be how much relative use they would receive--a subject still\r
-requiring evaluation. The challenge will be to understand whether\r
-coherent bodies of material will increase usage or whether POB should\r
-seek material that is being used, scan that, and make it more accessible. \r
-POB might decide to digitize materials that are already heavily used, in\r
-order to make them more accessible and decrease wear on them. Another\r
-approach would be to provide a large body of intellectually coherent\r
-material that may be used more in digital form than it is currently used\r
-in microfilm. POB would seek material that was out of copyright.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-BARONAS * Origin and scope of AIIM * Types of documents produced in\r
-AIIM's standards program * Domain of AIIM's standardization work * AIIM's\r
-structure * TC 171 and MS23 * Electronic image management standards *\r
-Categories of EIM standardization where AIIM standards are being\r
-developed * \r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Jean BARONAS, senior manager, Department of Standards and Technology,\r
-Association for Information and Image Management (AIIM), described the\r
-not-for-profit association and the national and international programs\r
-for standardization in which AIIM is active.\r
-\r
-Accredited for twenty-five years as the nation's standards development\r
-organization for document image management, AIIM began life in a library\r
-community developing microfilm standards. Today the association\r
-maintains both its library and business-image management standardization\r
-activities--and has moved into electronic image-management\r
-standardization (EIM).\r
-\r
-BARONAS defined the program's scope. AIIM deals with: 1) the\r
-terminology of standards and of the technology it uses; 2) methods of\r
-measurement for the systems, as well as quality; 3) methodologies for\r
-users to evaluate and measure quality; 4) the features of apparatus used\r
-to manage and edit images; and 5) the procedures used to manage images.\r
-\r
-BARONAS noted that three types of documents are produced in the AIIM\r
-standards program: the first two, accredited by the American National\r
-Standards Institute (ANSI), are standards and standard recommended\r
-practices. Recommended practices differ from standards in that they\r
-contain more tutorial information. A technical report is not an ANSI\r
-standard. Because AIIM's policies and procedures for developing\r
-standards are approved by ANSI, its standards are labeled ANSI/AIIM,\r
-followed by the number and title of the standard.\r
-\r
-BARONAS then illustrated the domain of AIIM's standardization work. For\r
-example, AIIM is the administrator of the U.S. Technical Advisory Group\r
-(TAG) to the International Standards Organization's (ISO) technical\r
-committee, TC l7l Micrographics and Optical Memories for Document and\r
-Image Recording, Storage, and Use. AIIM officially works through ANSI in\r
-the international standardization process.\r
-\r
-BARONAS described AIIM's structure, including its board of directors, its\r
-standards board of twelve individuals active in the image-management\r
-industry, its strategic planning and legal admissibility task forces, and\r
-its National Standards Council, which is comprised of the members of a\r
-number of organizations who vote on every AIIM standard before it is\r
-published. BARONAS pointed out that AIIM's liaisons deal with numerous\r
-other standards developers, including the optical disk community, office\r
-and publishing systems, image-codes-and-character set committees, and the\r
-National Information Standards Organization (NISO).\r
-\r
-BARONAS illustrated the procedures of TC l7l, which covers all aspects of\r
-image management. When AIIM's national program has conceptualized a new\r
-project, it is usually submitted to the international level, so that the\r
-member countries of TC l7l can simultaneously work on the development of\r
-the standard or the technical report. BARONAS also illustrated a classic\r
-microfilm standard, MS23, which deals with numerous imaging concepts that\r
-apply to electronic imaging. Originally developed in the l970s, revised\r
-in the l980s, and revised again in l991, this standard is scheduled for\r
-another revision. MS23 is an active standard whereby users may propose\r
-new density ranges and new methods of evaluating film images in the\r
-standard's revision.\r
-\r
-BARONAS detailed several electronic image-management standards, for\r
-instance, ANSI/AIIM MS44, a quality-control guideline for scanning 8.5"\r
-by 11" black-and-white office documents. This standard is used with the\r
-IEEE fax image--a continuous tone photographic image with gray scales,\r
-text, and several continuous tone pictures--and AIIM test target number\r
-2, a representative document used in office document management.\r
-\r
-BARONAS next outlined the four categories of EIM standardization in which\r
-AIIM standards are being developed: transfer and retrieval, evaluation,\r
-optical disc and document scanning applications, and design and\r
-conversion of documents. She detailed several of the main projects of\r
-each: 1) in the category of image transfer and retrieval, a bi-level\r
-image transfer format, ANSI/AIIM MS53, which is a proposed standard that\r
-describes a file header for image transfer between unlike systems when\r
-the images are compressed using G3 and G4 compression; 2) the category of\r
-image evaluation, which includes the AIIM-proposed TR26 tutorial on image\r
-resolution (this technical report will treat the differences and\r
-similarities between classical or photographic and electronic imaging);\r
-3) design and conversion, which includes a proposed technical report\r
-called "Forms Design Optimization for EIM" (this report considers how\r
-general-purpose business forms can be best designed so that scanning is\r
-optimized; reprographic characteristics such as type, rules, background,\r
-tint, and color will likewise be treated in the technical report); 4)\r
-disk and document scanning applications includes a project a) on planning\r
-platters and disk management, b) on generating an application profile for\r
-EIM when images are stored and distributed on CD-ROM, and c) on\r
-evaluating SCSI2, and how a common command set can be generated for SCSI2\r
-so that document scanners are more easily integrated. (ANSI/AIIM MS53\r
-will also apply to compressed images.)\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-BATTIN * The implications of standards for preservation * A major\r
-obstacle to successful cooperation * A hindrance to access in the digital\r
-environment * Standards a double-edged sword for those concerned with the\r
-preservation of the human record * Near-term prognosis for reliable\r
-archival standards * Preservation concerns for electronic media * Need\r
-for reconceptualizing our preservation principles * Standards in the real\r
-world and the politics of reproduction * Need to redefine the concept of\r
-archival and to begin to think in terms of life cycles * Cooperation and\r
-the La Guardia Eight * Concerns generated by discussions on the problems\r
-of preserving text and image * General principles to be adopted in a\r
-world without standards *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Patricia BATTIN, president, the Commission on Preservation and Access\r
-(CPA), addressed the implications of standards for preservation. She\r
-listed several areas where the library profession and the analog world of\r
-the printed book had made enormous contributions over the past hundred\r
-years--for example, in bibliographic formats, binding standards, and, most\r
-important, in determining what constitutes longevity or archival quality.\r
-\r
-Although standards have lightened the preservation burden through the\r
-development of national and international collaborative programs,\r
-nevertheless, a pervasive mistrust of other people's standards remains a\r
-major obstacle to successful cooperation, BATTIN said.\r
-\r
-The zeal to achieve perfection, regardless of the cost, has hindered\r
-rather than facilitated access in some instances, and in the digital\r
-environment, where no real standards exist, has brought an ironically\r
-just reward.\r
-\r
-BATTIN argued that standards are a double-edged sword for those concerned\r
-with the preservation of the human record, that is, the provision of\r
-access to recorded knowledge in a multitude of media as far into the\r
-future as possible. Standards are essential to facilitate\r
-interconnectivity and access, but, BATTIN said, as LYNCH pointed out\r
-yesterday, if set too soon they can hinder creativity, expansion of\r
-capability, and the broadening of access. The characteristics of\r
-standards for digital imagery differ radically from those for analog\r
-imagery. And the nature of digital technology implies continuing\r
-volatility and change. To reiterate, precipitous standard-setting can\r
-inhibit creativity, but delayed standard-setting results in chaos.\r
-\r
-Since in BATTIN'S opinion the near-term prognosis for reliable archival\r
-standards, as defined by librarians in the analog world, is poor, two\r
-alternatives remain: standing pat with the old technology, or\r
-reconceptualizing.\r
-\r
-Preservation concerns for electronic media fall into two general domains. \r
-One is the continuing assurance of access to knowledge originally\r
-generated, stored, disseminated, and used in electronic form. This\r
-domain contains several subdivisions, including 1) the closed,\r
-proprietary systems discussed the previous day, bundled information such\r
-as electronic journals and government agency records, and electronically\r
-produced or captured raw data; and 2) the application of digital\r
-technologies to the reformatting of materials originally published on a\r
-deteriorating analog medium such as acid paper or videotape.\r
-\r
-The preservation of electronic media requires a reconceptualizing of our\r
-preservation principles during a volatile, standardless transition which\r
-may last far longer than any of us envision today. BATTIN urged the\r
-necessity of shifting focus from assessing, measuring, and setting\r
-standards for the permanence of the medium to the concept of managing\r
-continuing access to information stored on a variety of media and\r
-requiring a variety of ever-changing hardware and software for access--a\r
-fundamental shift for the library profession.\r
-\r
-BATTIN offered a primer on how to move forward with reasonable confidence\r
-in a world without standards. Her comments fell roughly into two sections:\r
-1) standards in the real world and 2) the politics of reproduction.\r
-\r
-In regard to real-world standards, BATTIN argued the need to redefine the\r
-concept of archive and to begin to think in terms of life cycles. In\r
-the past, the naive assumption that paper would last forever produced a\r
-cavalier attitude toward life cycles. The transient nature of the\r
-electronic media has compelled people to recognize and accept upfront the\r
-concept of life cycles in place of permanency.\r
-\r
-Digital standards have to be developed and set in a cooperative context\r
-to ensure efficient exchange of information. Moreover, during this\r
-transition period, greater flexibility concerning how concepts such as\r
-backup copies and archival copies in the CXP are defined is necessary,\r
-or the opportunity to move forward will be lost.\r
-\r
-In terms of cooperation, particularly in the university setting, BATTIN\r
-also argued the need to avoid going off in a hundred different\r
-directions. The CPA has catalyzed a small group of universities called\r
-the La Guardia Eight--because La Guardia Airport is where meetings take\r
-place--Harvard, Yale, Cornell, Princeton, Penn State, Tennessee,\r
-Stanford, and USC, to develop a digital preservation consortium to look\r
-at all these issues and develop de facto standards as we move along,\r
-instead of waiting for something that is officially blessed. Continuing\r
-to apply analog values and definitions of standards to the digital\r
-environment, BATTIN said, will effectively lead to forfeiture of the\r
-benefits of digital technology to research and scholarship.\r
-\r
-Under the second rubric, the politics of reproduction, BATTIN reiterated\r
-an oft-made argument concerning the electronic library, namely, that it\r
-is more difficult to transform than to create, and nowhere is that belief\r
-expressed more dramatically than in the conversion of brittle books to\r
-new media. Preserving information published in electronic media involves\r
-making sure the information remains accessible and that digital\r
-information is not lost through reproduction. In the analog world of\r
-photocopies and microfilm, the issue of fidelity to the original becomes\r
-paramount, as do issues of "Whose fidelity?" and "Whose original?"\r
-\r
-BATTIN elaborated these arguments with a few examples from a recent study\r
-conducted by the CPA on the problems of preserving text and image. \r
-Discussions with scholars, librarians, and curators in a variety of\r
-disciplines dependent on text and image generated a variety of concerns,\r
-for example: 1) Copy what is, not what the technology is capable of. \r
-This is very important for the history of ideas. Scholars wish to know\r
-what the author saw and worked from. And make available at the\r
-workstation the opportunity to erase all the defects and enhance the\r
-presentation. 2) The fidelity of reproduction--what is good enough, what\r
-can we afford, and the difference it makes--issues of subjective versus\r
-objective resolution. 3) The differences between primary and secondary\r
-users. Restricting the definition of primary user to the one in whose\r
-discipline the material has been published runs one headlong into the\r
-reality that these printed books have had a host of other users from a\r
-host of other disciplines, who not only were looking for very different\r
-things, but who also shared values very different from those of the\r
-primary user. 4) The relationship of the standard of reproduction to new\r
-capabilities of scholarship--the browsing standard versus an archival\r
-standard. How good must the archival standard be? Can a distinction be\r
-drawn between potential users in setting standards for reproduction? \r
-Archival storage, use copies, browsing copies--ought an attempt to set\r
-standards even be made? 5) Finally, costs. How much are we prepared to\r
-pay to capture absolute fidelity? What are the trade-offs between vastly\r
-enhanced access, degrees of fidelity, and costs?\r
-\r
-These standards, BATTIN concluded, serve to complicate further the\r
-reproduction process, and add to the long list of technical standards\r
-that are necessary to ensure widespread access. Ways to articulate and\r
-analyze the costs that are attached to the different levels of standards\r
-must be found.\r
-\r
-Given the chaos concerning standards, which promises to linger for the\r
-foreseeable future, BATTIN urged adoption of the following general\r
-principles:\r
-\r
- * Strive to understand the changing information requirements of\r
- scholarly disciplines as more and more technology is integrated into\r
- the process of research and scholarly communication in order to meet\r
- future scholarly needs, not to build for the past. Capture\r
- deteriorating information at the highest affordable resolution, even\r
- though the dissemination and display technologies will lag.\r
-\r
- * Develop cooperative mechanisms to foster agreement on protocols\r
- for document structure and other interchange mechanisms necessary\r
- for widespread dissemination and use before official standards are\r
- set.\r
-\r
- * Accept that, in a transition period, de facto standards will have\r
- to be developed.\r
-\r
- * Capture information in a way that keeps all options open and\r
- provides for total convertibility: OCR, scanning of microfilm,\r
- producing microfilm from scanned documents, etc.\r
-\r
- * Work closely with the generators of information and the builders\r
- of networks and databases to ensure that continuing accessibility is\r
- a primary concern from the beginning.\r
-\r
- * Piggyback on standards under development for the broad market, and\r
- avoid library-specific standards; work with the vendors, in order to\r
- take advantage of that which is being standardized for the rest of\r
- the world.\r
-\r
- * Concentrate efforts on managing permanence in the digital world,\r
- rather than perfecting the longevity of a particular medium.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Additional comments on TIFF *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the brief discussion period that followed BATTIN's presentation,\r
-BARONAS explained that TIFF was not developed in collaboration with or\r
-under the auspices of AIIM. TIFF is a company product, not a standard,\r
-is owned by two corporations, and is always changing. BARONAS also\r
-observed that ANSI/AIIM MS53, a bi-level image file transfer format that\r
-allows unlike systems to exchange images, is compatible with TIFF as well\r
-as with DEC's architecture and IBM's MODCA/IOCA.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-HOOTON * Several questions to be considered in discussing text conversion\r
-*\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-HOOTON introduced the final topic, text conversion, by noting that it is\r
-becoming an increasingly important part of the imaging business. Many\r
-people now realize that it enhances their system to be able to have more\r
-and more character data as part of their imaging system. Re the issue of\r
-OCR versus rekeying, HOOTON posed several questions: How does one get\r
-text into computer-readable form? Does one use automated processes? \r
-Does one attempt to eliminate the use of operators where possible? \r
-Standards for accuracy, he said, are extremely important: it makes a\r
-major difference in cost and time whether one sets as a standard 98.5\r
-percent acceptance or 99.5 percent. He mentioned outsourcing as a\r
-possibility for converting text. Finally, what one does with the image\r
-to prepare it for the recognition process is also important, he said,\r
-because such preparation changes how recognition is viewed, as well as\r
-facilitates recognition itself.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-LESK * Roles of participants in CORE * Data flow * The scanning process *\r
-The image interface * Results of experiments involving the use of\r
-electronic resources and traditional paper copies * Testing the issue of\r
-serendipity * Conclusions *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Michael LESK, executive director, Computer Science Research, Bell\r
-Communications Research, Inc. (Bellcore), discussed the Chemical Online\r
-Retrieval Experiment (CORE), a cooperative project involving Cornell\r
-University, OCLC, Bellcore, and the American Chemical Society (ACS).\r
-\r
-LESK spoke on 1) how the scanning was performed, including the unusual\r
-feature of page segmentation, and 2) the use made of the text and the\r
-image in experiments.\r
-\r
-Working with the chemistry journals (because ACS has been saving its\r
-typesetting tapes since the mid-1970s and thus has a significant back-run\r
-of the most important chemistry journals in the United States), CORE is\r
-attempting to create an automated chemical library. Approximately a\r
-quarter of the pages by square inch are made up of images of\r
-quasi-pictorial material; dealing with the graphic components of the\r
-pages is extremely important. LESK described the roles of participants\r
-in CORE: 1) ACS provides copyright permission, journals on paper,\r
-journals on microfilm, and some of the definitions of the files; 2) at\r
-Bellcore, LESK chiefly performs the data preparation, while Dennis Egan\r
-performs experiments on the users of chemical abstracts, and supplies the\r
-indexing and numerous magnetic tapes; 3) Cornell provides the site of the\r
-experiment; 4) OCLC develops retrieval software and other user interfaces.\r
-Various manufacturers and publishers have furnished other help.\r
-\r
-Concerning data flow, Bellcore receives microfilm and paper from ACS; the\r
-microfilm is scanned by outside vendors, while the paper is scanned\r
-inhouse on an Improvision scanner, twenty pages per minute at 300 dpi,\r
-which provides sufficient quality for all practical uses. LESK would\r
-prefer to have more gray level, because one of the ACS journals prints on\r
-some colored pages, which creates a problem.\r
-\r
-Bellcore performs all this scanning, creates a page-image file, and also\r
-selects from the pages the graphics, to mix with the text file (which is\r
-discussed later in the Workshop). The user is always searching the ASCII\r
-file, but she or he may see a display based on the ASCII or a display\r
-based on the images.\r
-\r
-LESK illustrated how the program performs page analysis, and the image\r
-interface. (The user types several words, is presented with a list--\r
-usually of the titles of articles contained in an issue--that derives\r
-from the ASCII, clicks on an icon and receives an image that mirrors an\r
-ACS page.) LESK also illustrated an alternative interface, based on text\r
-on the ASCII, the so-called SuperBook interface from Bellcore.\r
-\r
-LESK next presented the results of an experiment conducted by Dennis Egan\r
-and involving thirty-six students at Cornell, one third of them\r
-undergraduate chemistry majors, one third senior undergraduate chemistry\r
-majors, and one third graduate chemistry students. A third of them\r
-received the paper journals, the traditional paper copies and chemical\r
-abstracts on paper. A third received image displays of the pictures of\r
-the pages, and a third received the text display with pop-up graphics.\r
-\r
-The students were given several questions made up by some chemistry\r
-professors. The questions fell into five classes, ranging from very easy\r
-to very difficult, and included questions designed to simulate browsing\r
-as well as a traditional information retrieval-type task.\r
-\r
-LESK furnished the following results. In the straightforward question\r
-search--the question being, what is the phosphorus oxygen bond distance\r
-and hydroxy phosphate?--the students were told that they could take\r
-fifteen minutes and, then, if they wished, give up. The students with\r
-paper took more than fifteen minutes on average, and yet most of them\r
-gave up. The students with either electronic format, text or image,\r
-received good scores in reasonable time, hardly ever had to give up, and\r
-usually found the right answer.\r
-\r
-In the browsing study, the students were given a list of eight topics,\r
-told to imagine that an issue of the Journal of the American Chemical\r
-Society had just appeared on their desks, and were also told to flip\r
-through it and to find topics mentioned in the issue. The average scores\r
-were about the same. (The students were told to answer yes or no about\r
-whether or not particular topics appeared.) The errors, however, were\r
-quite different. The students with paper rarely said that something\r
-appeared when it had not. But they often failed to find something\r
-actually mentioned in the issue. The computer people found numerous\r
-things, but they also frequently said that a topic was mentioned when it\r
-was not. (The reason, of course, was that they were performing word\r
-searches. They were finding that words were mentioned and they were\r
-concluding that they had accomplished their task.)\r
-\r
-This question also contained a trick to test the issue of serendipity. \r
-The students were given another list of eight topics and instructed,\r
-without taking a second look at the journal, to recall how many of this\r
-new list of eight topics were in this particular issue. This was an\r
-attempt to see if they performed better at remembering what they were not\r
-looking for. They all performed about the same, paper or electronics,\r
-about 62 percent accurate. In short, LESK said, people were not very\r
-good when it came to serendipity, but they were no worse at it with\r
-computers than they were with paper.\r
-\r
-(LESK gave a parenthetical illustration of the learning curve of students\r
-who used SuperBook.)\r
-\r
-The students using the electronic systems started off worse than the ones\r
-using print, but by the third of the three sessions in the series had\r
-caught up to print. As one might expect, electronics provide a much\r
-better means of finding what one wants to read; reading speeds, once the\r
-object of the search has been found, are about the same.\r
-\r
-Almost none of the students could perform the hard task--the analogous\r
-transformation. (It would require the expertise of organic chemists to\r
-complete.) But an interesting result was that the students using the text\r
-search performed terribly, while those using the image system did best.\r
-That the text search system is driven by text offers the explanation.\r
-Everything is focused on the text; to see the pictures, one must press\r
-on an icon. Many students found the right article containing the answer\r
-to the question, but they did not click on the icon to bring up the right\r
-figure and see it. They did not know that they had found the right place,\r
-and thus got it wrong.\r
-\r
-The short answer demonstrated by this experiment was that in the event\r
-one does not know what to read, one needs the electronic systems; the\r
-electronic systems hold no advantage at the moment if one knows what to\r
-read, but neither do they impose a penalty.\r
-\r
-LESK concluded by commenting that, on one hand, the image system was easy\r
-to use. On the other hand, the text display system, which represented\r
-twenty man-years of work in programming and polishing, was not winning,\r
-because the text was not being read, just searched. The much easier\r
-system is highly competitive as well as remarkably effective for the\r
-actual chemists.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-ERWAY * Most challenging aspect of working on AM * Assumptions guiding\r
-AM's approach * Testing different types of service bureaus * AM's\r
-requirement for 99.95 percent accuracy * Requirements for text-coding *\r
-Additional factors influencing AM's approach to coding * Results of AM's\r
-experience with rekeying * Other problems in dealing with service bureaus\r
-* Quality control the most time-consuming aspect of contracting out\r
-conversion * Long-term outlook uncertain *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-To Ricky ERWAY, associate coordinator, American Memory, Library of\r
-Congress, the constant variety of conversion projects taking place\r
-simultaneously represented perhaps the most challenging aspect of working\r
-on AM. Thus, the challenge was not to find a solution for text\r
-conversion but a tool kit of solutions to apply to LC's varied\r
-collections that need to be converted. ERWAY limited her remarks to the\r
-process of converting text to machine-readable form, and the variety of\r
-LC's text collections, for example, bound volumes, microfilm, and\r
-handwritten manuscripts.\r
-\r
-Two assumptions have guided AM's approach, ERWAY said: 1) A desire not\r
-to perform the conversion inhouse. Because of the variety of formats and\r
-types of texts, to capitalize the equipment and have the talents and\r
-skills to operate them at LC would be extremely expensive. Further, the\r
-natural inclination to upgrade to newer and better equipment each year\r
-made it reasonable for AM to focus on what it did best and seek external\r
-conversion services. Using service bureaus also allowed AM to have\r
-several types of operations take place at the same time. 2) AM was not a\r
-technology project, but an effort to improve access to library\r
-collections. Hence, whether text was converted using OCR or rekeying\r
-mattered little to AM. What mattered were cost and accuracy of results.\r
-\r
-AM considered different types of service bureaus and selected three to\r
-perform several small tests in order to acquire a sense of the field. \r
-The sample collections with which they worked included handwritten\r
-correspondence, typewritten manuscripts from the 1940s, and\r
-eighteenth-century printed broadsides on microfilm. On none of these\r
-samples was OCR performed; they were all rekeyed. AM had several special\r
-requirements for the three service bureaus it had engaged. For instance,\r
-any errors in the original text were to be retained. Working from bound\r
-volumes or anything that could not be sheet-fed also constituted a factor\r
-eliminating companies that would have performed OCR.\r
-\r
-AM requires 99.95 percent accuracy, which, though it sounds high, often\r
-means one or two errors per page. The initial batch of test samples\r
-contained several handwritten materials for which AM did not require\r
-text-coding. The results, ERWAY reported, were in all cases fairly\r
-comparable: for the most part, all three service bureaus achieved 99.95\r
-percent accuracy. AM was satisfied with the work but surprised at the cost.\r
-\r
-As AM began converting whole collections, it retained the requirement for\r
-99.95 percent accuracy and added requirements for text-coding. AM needed\r
-to begin performing work more than three years ago before LC requirements\r
-for SGML applications had been established. Since AM's goal was simply\r
-to retain any of the intellectual content represented by the formatting\r
-of the document (which would be lost if one performed a straight ASCII\r
-conversion), AM used "SGML-like" codes. These codes resembled SGML tags\r
-but were used without the benefit of document-type definitions. AM found\r
-that many service bureaus were not yet SGML-proficient.\r
-\r
-Additional factors influencing the approach AM took with respect to\r
-coding included: 1) the inability of any known microcomputer-based\r
-user-retrieval software to take advantage of SGML coding; and 2) the\r
-multiple inconsistencies in format of the older documents, which\r
-confirmed AM in its desire not to attempt to force the different formats\r
-to conform to a single document-type definition (DTD) and thus create the\r
-need for a separate DTD for each document. \r
-\r
-The five text collections that AM has converted or is in the process of\r
-converting include a collection of eighteenth-century broadsides, a\r
-collection of pamphlets, two typescript document collections, and a\r
-collection of 150 books.\r
-\r
-ERWAY next reviewed the results of AM's experience with rekeying, noting\r
-again that because the bulk of AM's materials are historical, the quality\r
-of the text often does not lend itself to OCR. While non-English\r
-speakers are less likely to guess or elaborate or correct typos in the\r
-original text, they are also less able to infer what we would; they also\r
-are nearly incapable of converting handwritten text. Another\r
-disadvantage of working with overseas keyers is that they are much less\r
-likely to telephone with questions, especially on the coding, with the\r
-result that they develop their own rules as they encounter new\r
-situations.\r
-\r
-Government contracting procedures and time frames posed a major challenge\r
-to performing the conversion. Many service bureaus are not accustomed to\r
-retaining the image, even if they perform OCR. Thus, questions of image\r
-format and storage media were somewhat novel to many of them. ERWAY also\r
-remarked other problems in dealing with service bureaus, for example,\r
-their inability to perform text conversion from the kind of microfilm\r
-that LC uses for preservation purposes.\r
-\r
-But quality control, in ERWAY's experience, was the most time-consuming\r
-aspect of contracting out conversion. AM has been attempting to perform\r
-a 10-percent quality review, looking at either every tenth document or\r
-every tenth page to make certain that the service bureaus are maintaining\r
-99.95 percent accuracy. But even if they are complying with the\r
-requirement for accuracy, finding errors produces a desire to correct\r
-them and, in turn, to clean up the whole collection, which defeats the\r
-purpose to some extent. Even a double entry requires a\r
-character-by-character comparison to the original to meet the accuracy\r
-requirement. LC is not accustomed to publish imperfect texts, which\r
-makes attempting to deal with the industry standard an emotionally\r
-fraught issue for AM. As was mentioned in the previous day's discussion,\r
-going from 99.95 to 99.99 percent accuracy usually doubles costs and\r
-means a third keying or another complete run-through of the text.\r
-\r
-Although AM has learned much from its experiences with various collections\r
-and various service bureaus, ERWAY concluded pessimistically that no\r
-breakthrough has been achieved. Incremental improvements have occurred\r
-in some of the OCR technology, some of the processes, and some of the\r
-standards acceptances, which, though they may lead to somewhat lower costs,\r
-do not offer much encouragement to many people who are anxiously awaiting\r
-the day that the entire contents of LC are available on-line.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-ZIDAR * Several answers to why one attempts to perform full-text\r
-conversion * Per page cost of performing OCR * Typical problems\r
-encountered during editing * Editing poor copy OCR vs. rekeying *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Judith ZIDAR, coordinator, National Agricultural Text Digitizing Program\r
-(NATDP), National Agricultural Library (NAL), offered several answers to\r
-the question of why one attempts to perform full-text conversion: 1)\r
-Text in an image can be read by a human but not by a computer, so of\r
-course it is not searchable and there is not much one can do with it. 2)\r
-Some material simply requires word-level access. For instance, the legal\r
-profession insists on full-text access to its material; with taxonomic or\r
-geographic material, which entails numerous names, one virtually requires\r
-word-level access. 3) Full text permits rapid browsing and searching,\r
-something that cannot be achieved in an image with today's technology. \r
-4) Text stored as ASCII and delivered in ASCII is standardized and highly\r
-portable. 5) People just want full-text searching, even those who do not\r
-know how to do it. NAL, for the most part, is performing OCR at an\r
-actual cost per average-size page of approximately $7. NAL scans the\r
-page to create the electronic image and passes it through the OCR device.\r
-\r
-ZIDAR next rehearsed several typical problems encountered during editing. \r
-Praising the celerity of her student workers, ZIDAR observed that editing\r
-requires approximately five to ten minutes per page, assuming that there\r
-are no large tables to audit. Confusion among the three characters I, 1, \r
-and l, constitutes perhaps the most common problem encountered. Zeroes\r
-and O's also are frequently confused. Double M's create a particular\r
-problem, even on clean pages. They are so wide in most fonts that they\r
-touch, and the system simply cannot tell where one letter ends and the\r
-other begins. Complex page formats occasionally fail to columnate\r
-properly, which entails rescanning as though one were working with a\r
-single column, entering the ASCII, and decolumnating for better\r
-searching. With proportionally spaced text, OCR can have difficulty\r
-discerning what is a space and what are merely spaces between letters, as\r
-opposed to spaces between words, and therefore will merge text or break\r
-up words where it should not.\r
-\r
-ZIDAR said that it can often take longer to edit a poor-copy OCR than to\r
-key it from scratch. NAL has also experimented with partial editing of\r
-text, whereby project workers go into and clean up the format, removing\r
-stray characters but not running a spell-check. NAL corrects typos in\r
-the title and authors' names, which provides a foothold for searching and\r
-browsing. Even extremely poor-quality OCR (e.g., 60-percent accuracy)\r
-can still be searched, because numerous words are correct, while the\r
-important words are probably repeated often enough that they are likely\r
-to be found correct somewhere. Librarians, however, cannot tolerate this\r
-situation, though end users seem more willing to use this text for\r
-searching, provided that NAL indicates that it is unedited. ZIDAR\r
-concluded that rekeying of text may be the best route to take, in spite\r
-of numerous problems with quality control and cost.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Modifying an image before performing OCR * NAL's costs per\r
-page *AM's costs per page and experience with Federal Prison Industries *\r
-Elements comprising NATDP's costs per page * OCR and structured markup *\r
-Distinction between the structure of a document and its representation\r
-when put on the screen or printed *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-HOOTON prefaced the lengthy discussion that followed with several\r
-comments about modifying an image before one reaches the point of\r
-performing OCR. For example, in regard to an application containing a\r
-significant amount of redundant data, such as form-type data, numerous\r
-companies today are working on various kinds of form renewal, prior to\r
-going through a recognition process, by using dropout colors. Thus,\r
-acquiring access to form design or using electronic means are worth\r
-considering. HOOTON also noted that conversion usually makes or breaks\r
-one's imaging system. It is extremely important, extremely costly in\r
-terms of either capital investment or service, and determines the quality\r
-of the remainder of one's system, because it determines the character of\r
-the raw material used by the system.\r
-\r
-Concerning the four projects undertaken by NAL, two inside and two\r
-performed by outside contractors, ZIDAR revealed that an in-house service\r
-bureau executed the first at a cost between $8 and $10 per page for\r
-everything, including building of the database. The project undertaken\r
-by the Consultative Group on International Agricultural Research (CGIAR)\r
-cost approximately $10 per page for the conversion, plus some expenses\r
-for the software and building of the database. The Acid Rain Project--a\r
-two-disk set produced by the University of Vermont, consisting of\r
-Canadian publications on acid rain--cost $6.70 per page for everything,\r
-including keying of the text, which was double keyed, scanning of the\r
-images, and building of the database. The in-house project offered\r
-considerable ease of convenience and greater control of the process. On\r
-the other hand, the service bureaus know their job and perform it\r
-expeditiously, because they have more people.\r
-\r
-As a useful comparison, ERWAY revealed AM's costs as follows: $0.75\r
-cents to $0.85 cents per thousand characters, with an average page\r
-containing 2,700 characters. Requirements for coding and imaging\r
-increase the costs. Thus, conversion of the text, including the coding,\r
-costs approximately $3 per page. (This figure does not include the\r
-imaging and database-building included in the NAL costs.) AM also\r
-enjoyed a happy experience with Federal Prison Industries, which\r
-precluded the necessity of going through the request-for-proposal process\r
-to award a contract, because it is another government agency. The\r
-prisoners performed AM's rekeying just as well as other service bureaus\r
-and proved handy as well. AM shipped them the books, which they would\r
-photocopy on a book-edge scanner. They would perform the markup on\r
-photocopies, return the books as soon as they were done with them,\r
-perform the keying, and return the material to AM on WORM disks.\r
-\r
-ZIDAR detailed the elements that constitute the previously noted cost of\r
-approximately $7 per page. Most significant is the editing, correction\r
-of errors, and spell-checkings, which though they may sound easy to\r
-perform require, in fact, a great deal of time. Reformatting text also\r
-takes a while, but a significant amount of NAL's expenses are for equipment,\r
-which was extremely expensive when purchased because it was one of the few\r
-systems on the market. The costs of equipment are being amortized over\r
-five years but are still quite high, nearly $2,000 per month.\r
-\r
-HOCKEY raised a general question concerning OCR and the amount of editing\r
-required (substantial in her experience) to generate the kind of\r
-structured markup necessary for manipulating the text on the computer or\r
-loading it into any retrieval system. She wondered if the speakers could\r
-extend the previous question about the cost-benefit of adding or exerting\r
-structured markup. ERWAY noted that several OCR systems retain italics,\r
-bolding, and other spatial formatting. While the material may not be in\r
-the format desired, these systems possess the ability to remove the\r
-original materials quickly from the hands of the people performing the\r
-conversion, as well as to retain that information so that users can work\r
-with it. HOCKEY rejoined that the current thinking on markup is that one\r
-should not say that something is italic or bold so much as why it is that\r
-way. To be sure, one needs to know that something was italicized, but\r
-how can one get from one to the other? One can map from the structure to\r
-the typographic representation.\r
-\r
-FLEISCHHAUER suggested that, given the 100 million items the Library\r
-holds, it may not be possible for LC to do more than report that a thing\r
-was in italics as opposed to why it was italics, although that may be\r
-desirable in some contexts. Promising to talk a bit during the afternoon\r
-session about several experiments OCLC performed on automatic recognition\r
-of document elements, and which they hoped to extend, WEIBEL said that in\r
-fact one can recognize the major elements of a document with a fairly\r
-high degree of reliability, at least as good as OCR. STEVENS drew a\r
-useful distinction between standard, generalized markup (i.e., defining\r
-for a document-type definition the structure of the document), and what\r
-he termed a style sheet, which had to do with italics, bolding, and other\r
-forms of emphasis. Thus, two different components are at work, one being\r
-the structure of the document itself (its logic), and the other being its\r
-representation when it is put on the screen or printed.\r
-\r
- ******\r
-\r
-SESSION V. APPROACHES TO PREPARING ELECTRONIC TEXTS\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-HOCKEY * Text in ASCII and the representation of electronic text versus\r
-an image * The need to look at ways of using markup to assist retrieval *\r
-The need for an encoding format that will be reusable and multifunctional\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Susan HOCKEY, director, Center for Electronic Texts in the Humanities\r
-(CETH), Rutgers and Princeton Universities, announced that one talk\r
-(WEIBEL's) was moved into this session from the morning and that David\r
-Packard was unable to attend. The session would attempt to focus more on\r
-what one can do with a text in ASCII and the representation of electronic\r
-text rather than just an image, what one can do with a computer that\r
-cannot be done with a book or an image. It would be argued that one can\r
-do much more than just read a text, and from that starting point one can\r
-use markup and methods of preparing the text to take full advantage of\r
-the capability of the computer. That would lead to a discussion of what\r
-the European Community calls REUSABILITY, what may better be termed\r
-DURABILITY, that is, how to prepare or make a text that will last a long\r
-time and that can be used for as many applications as possible, which\r
-would lead to issues of improving intellectual access.\r
-\r
-HOCKEY urged the need to look at ways of using markup to facilitate retrieval,\r
-not just for referencing or to help locate an item that is retrieved, but also to put markup tags in\r
-a text to help retrieve the thing sought either with linguistic tagging or\r
-interpretation. HOCKEY also argued that little advancement had occurred in\r
-the software tools currently available for retrieving and searching text.\r
-She pressed the desideratum of going beyond Boolean searches and performing\r
-more sophisticated searching, which the insertion of more markup in the text\r
-would facilitate. Thinking about electronic texts as opposed to images means\r
-considering material that will never appear in print form, or print will not\r
-be its primary form, that is, material which only appears in electronic form.\r
-HOCKEY alluded to the history and the need for markup and tagging and\r
-electronic text, which was developed through the use of computers in the\r
-humanities; as MICHELSON had observed, Father Busa had started in 1949\r
-to prepare the first-ever text on the computer.\r
-\r
-HOCKEY remarked several large projects, particularly in Europe, for the\r
-compilation of dictionaries, language studies, and language analysis, in\r
-which people have built up archives of text and have begun to recognize\r
-the need for an encoding format that will be reusable and multifunctional,\r
-that can be used not just to print the text, which may be assumed to be a\r
-byproduct of what one wants to do, but to structure it inside the computer\r
-so that it can be searched, built into a Hypertext system, etc.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-WEIBEL * OCLC's approach to preparing electronic text: retroconversion,\r
-keying of texts, more automated ways of developing data * Project ADAPT\r
-and the CORE Project * Intelligent character recognition does not exist *\r
-Advantages of SGML * Data should be free of procedural markup;\r
-descriptive markup strongly advocated * OCLC's interface illustrated *\r
-Storage requirements and costs for putting a lot of information on line *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Stuart WEIBEL, senior research scientist, Online Computer Library Center,\r
-Inc. (OCLC), described OCLC's approach to preparing electronic text. He\r
-argued that the electronic world into which we are moving must\r
-accommodate not only the future but the past as well, and to some degree\r
-even the present. Thus, starting out at one end with retroconversion and\r
-keying of texts, one would like to move toward much more automated ways\r
-of developing data.\r
-\r
-For example, Project ADAPT had to do with automatically converting\r
-document images into a structured document database with OCR text as\r
-indexing and also a little bit of automatic formatting and tagging of\r
-that text. The CORE project hosted by Cornell University, Bellcore,\r
-OCLC, the American Chemical Society, and Chemical Abstracts, constitutes\r
-WEIBEL's principal concern at the moment. This project is an example of\r
-converting text for which one already has a machine-readable version into\r
-a format more suitable for electronic delivery and database searching. \r
-(Since Michael LESK had previously described CORE, WEIBEL would say\r
-little concerning it.) Borrowing a chemical phrase, de novo synthesis,\r
-WEIBEL cited the Online Journal of Current Clinical Trials as an example\r
-of de novo electronic publishing, that is, a form in which the primary\r
-form of the information is electronic.\r
-\r
-Project ADAPT, then, which OCLC completed a couple of years ago and in\r
-fact is about to resume, is a model in which one takes page images either\r
-in paper or microfilm and converts them automatically to a searchable\r
-electronic database, either on-line or local. The operating assumption\r
-is that accepting some blemishes in the data, especially for\r
-retroconversion of materials, will make it possible to accomplish more. \r
-Not enough money is available to support perfect conversion.\r
-\r
-WEIBEL related several steps taken to perform image preprocessing\r
-(processing on the image before performing optical character\r
-recognition), as well as image postprocessing. He denied the existence\r
-of intelligent character recognition and asserted that what is wanted is\r
-page recognition, which is a long way off. OCLC has experimented with\r
-merging of multiple optical character recognition systems that will\r
-reduce errors from an unacceptable rate of 5 characters out of every\r
-l,000 to an unacceptable rate of 2 characters out of every l,000, but it\r
-is not good enough. It will never be perfect.\r
-\r
-Concerning the CORE Project, WEIBEL observed that Bellcore is taking the\r
-topography files, extracting the page images, and converting those\r
-topography files to SGML markup. LESK hands that data off to OCLC, which\r
-builds that data into a Newton database, the same system that underlies\r
-the on-line system in virtually all of the reference products at OCLC. \r
-The long-term goal is to make the systems interoperable so that not just\r
-Bellcore's system and OCLC's system can access this data, but other\r
-systems can as well, and the key to that is the Z39.50 common command\r
-language and the full-text extension. Z39.50 is fine for MARC records,\r
-but is not enough to do it for full text (that is, make full texts\r
-interoperable).\r
-\r
-WEIBEL next outlined the critical role of SGML for a variety of purposes,\r
-for example, as noted by HOCKEY, in the world of extremely large\r
-databases, using highly structured data to perform field searches. \r
-WEIBEL argued that by building the structure of the data in (i.e., the\r
-structure of the data originally on a printed page), it becomes easy to\r
-look at a journal article even if one cannot read the characters and know\r
-where the title or author is, or what the sections of that document would be.\r
-OCLC wants to make that structure explicit in the database, because it will\r
-be important for retrieval purposes.\r
-\r
-The second big advantage of SGML is that it gives one the ability to\r
-build structure into the database that can be used for display purposes\r
-without contaminating the data with instructions about how to format\r
-things. The distinction lies between procedural markup, which tells one\r
-where to put dots on the page, and descriptive markup, which describes\r
-the elements of a document.\r
-\r
-WEIBEL believes that there should be no procedural markup in the data at\r
-all, that the data should be completely unsullied by information about\r
-italics or boldness. That should be left up to the display device,\r
-whether that display device is a page printer or a screen display device. \r
-By keeping one's database free of that kind of contamination, one can\r
-make decisions down the road, for example, reorganize the data in ways\r
-that are not cramped by built-in notions of what should be italic and\r
-what should be bold. WEIBEL strongly advocated descriptive markup. As\r
-an example, he illustrated the index structure in the CORE data. With\r
-subsequent illustrated examples of markup, WEIBEL acknowledged the common\r
-complaint that SGML is hard to read in its native form, although markup\r
-decreases considerably once one gets into the body. Without the markup,\r
-however, one would not have the structure in the data. One can pass\r
-markup through a LaTeX processor and convert it relatively easily to a\r
-printed version of the document.\r
-\r
-WEIBEL next illustrated an extremely cluttered screen dump of OCLC's\r
-system, in order to show as much as possible the inherent capability on\r
-the screen. (He noted parenthetically that he had become a supporter of\r
-X-Windows as a result of the progress of the CORE Project.) WEIBEL also\r
-illustrated the two major parts of the interface: l) a control box that\r
-allows one to generate lists of items, which resembles a small table of\r
-contents based on key words one wishes to search, and 2) a document\r
-viewer, which is a separate process in and of itself. He demonstrated\r
-how to follow links through the electronic database simply by selecting\r
-the appropriate button and bringing them up. He also noted problems that\r
-remain to be accommodated in the interface (e.g., as pointed out by LESK,\r
-what happens when users do not click on the icon for the figure).\r
-\r
-Given the constraints of time, WEIBEL omitted a large number of ancillary\r
-items in order to say a few words concerning storage requirements and\r
-what will be required to put a lot of things on line. Since it is\r
-extremely expensive to reconvert all of this data, especially if it is\r
-just in paper form (and even if it is in electronic form in typesetting\r
-tapes), he advocated building journals electronically from the start. In\r
-that case, if one only has text graphics and indexing (which is all that\r
-one needs with de novo electronic publishing, because there is no need to\r
-go back and look at bit-maps of pages), one can get 10,000 journals of\r
-full text, or almost 6 million pages per year. These pages can be put in\r
-approximately 135 gigabytes of storage, which is not all that much,\r
-WEIBEL said. For twenty years, something less than three terabytes would\r
-be required. WEIBEL calculated the costs of storing this information as\r
-follows: If a gigabyte costs approximately $1,000, then a terabyte costs\r
-approximately $1 million to buy in terms of hardware. One also needs a\r
-building to put it in and a staff like OCLC to handle that information. \r
-So, to support a terabyte, multiply by five, which gives $5 million per\r
-year for a supported terabyte of data.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Tapes saved by ACS are the typography files originally\r
-supporting publication of the journal * Cost of building tagged text into\r
-the database *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the question-and-answer period that followed WEIBEL's\r
-presentation, these clarifications emerged. The tapes saved by the\r
-American Chemical Society are the typography files that originally\r
-supported the publication of the journal. Although they are not tagged\r
-in SGML, they are tagged in very fine detail. Every single sentence is\r
-marked, all the registry numbers, all the publications issues, dates, and\r
-volumes. No cost figures on tagging material on a per-megabyte basis\r
-were available. Because ACS's typesetting system runs from tagged text,\r
-there is no extra cost per article. It was unknown what it costs ACS to\r
-keyboard the tagged text rather than just keyboard the text in the\r
-cheapest process. In other words, since one intends to publish things\r
-and will need to build tagged text into a typography system in any case,\r
-if one does that in such a way that it can drive not only typography but\r
-an electronic system (which is what ACS intends to do--move to SGML\r
-publishing), the marginal cost is zero. The marginal cost represents the\r
-cost of building tagged text into the database, which is small.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-SPERBERG-McQUEEN * Distinction between texts and computers * Implications\r
-of recognizing that all representation is encoding * Dealing with\r
-complicated representations of text entails the need for a grammar of\r
-documents * Variety of forms of formal grammars * Text as a bit-mapped\r
-image does not represent a serious attempt to represent text in\r
-electronic form * SGML, the TEI, document-type declarations, and the\r
-reusability and longevity of data * TEI conformance explicitly allows\r
-extension or modification of the TEI tag set * Administrative background\r
-of the TEI * Several design goals for the TEI tag set * An absolutely\r
-fixed requirement of the TEI Guidelines * Challenges the TEI has\r
-attempted to face * Good texts not beyond economic feasibility * The\r
-issue of reproducibility or processability * The issue of mages as\r
-simulacra for the text redux * One's model of text determines what one's\r
-software can do with a text and has economic consequences *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Prior to speaking about SGML and markup, Michael SPERBERG-McQUEEN, editor,\r
-Text Encoding Initiative (TEI), University of Illinois-Chicago, first drew\r
-a distinction between texts and computers: Texts are abstract cultural\r
-and linguistic objects while computers are complicated physical devices,\r
-he said. Abstract objects cannot be placed inside physical devices; with\r
-computers one can only represent text and act upon those representations.\r
-\r
-The recognition that all representation is encoding, SPERBERG-McQUEEN\r
-argued, leads to the recognition of two things: 1) The topic description\r
-for this session is slightly misleading, because there can be no discussion\r
-of pros and cons of text-coding unless what one means is pros and cons of\r
-working with text with computers. 2) No text can be represented in a\r
-computer without some sort of encoding; images are one way of encoding text,\r
-ASCII is another, SGML yet another. There is no encoding without some\r
-information loss, that is, there is no perfect reproduction of a text that\r
-allows one to do away with the original. Thus, the question becomes,\r
-What is the most useful representation of text for a serious work?\r
-This depends on what kind of serious work one is talking about.\r
-\r
-The projects demonstrated the previous day all involved highly complex\r
-information and fairly complex manipulation of the textual material.\r
-In order to use that complicated information, one has to calculate it\r
-slowly or manually and store the result. It needs to be stored, therefore,\r
-as part of one's representation of the text. Thus, one needs to store the\r
-structure in the text. To deal with complicated representations of text,\r
-one needs somehow to control the complexity of the representation of a text;\r
-that means one needs a way of finding out whether a document and an\r
-electronic representation of a document is legal or not; and that\r
-means one needs a grammar of documents.\r
-\r
-SPERBERG-McQUEEN discussed the variety of forms of formal grammars,\r
-implicit and explicit, as applied to text, and their capabilities. He\r
-argued that these grammars correspond to different models of text that\r
-different developers have. For example, one implicit model of the text\r
-is that there is no internal structure, but just one thing after another,\r
-a few characters and then perhaps a start-title command, and then a few\r
-more characters and an end-title command. SPERBERG-McQUEEN also\r
-distinguished several kinds of text that have a sort of hierarchical\r
-structure that is not very well defined, which, typically, corresponds\r
-to grammars that are not very well defined, as well as hierarchies that\r
-are very well defined (e.g., the Thesaurus Linguae Graecae) and extremely\r
-complicated things such as SGML, which handle strictly hierarchical data\r
-very nicely.\r
-\r
-SPERBERG-McQUEEN conceded that one other model not illustrated on his two\r
-displays was the model of text as a bit-mapped image, an image of a page,\r
-and confessed to having been converted to a limited extent by the\r
-Workshop to the view that electronic images constitute a promising,\r
-probably superior alternative to microfilming. But he was not convinced\r
-that electronic images represent a serious attempt to represent text in\r
-electronic form. Many of their problems stem from the fact that they are\r
-not direct attempts to represent the text but attempts to represent the\r
-page, thus making them representations of representations.\r
-\r
-In this situation of increasingly complicated textual information and the\r
-need to control that complexity in a useful way (which begs the question\r
-of the need for good textual grammars), one has the introduction of SGML. \r
-With SGML, one can develop specific document-type declarations\r
-for specific text types or, as with the TEI, attempts to generate\r
-general document-type declarations that can handle all sorts of text.\r
-The TEI is an attempt to develop formats for text representation that\r
-will ensure the kind of reusability and longevity of data discussed earlier.\r
-It offers a way to stay alive in the state of permanent technological\r
-revolution.\r
-\r
-It has been a continuing challenge in the TEI to create document grammars\r
-that do some work in controlling the complexity of the textual object but\r
-also allowing one to represent the real text that one will find. \r
-Fundamental to the notion of the TEI is that TEI conformance allows one\r
-the ability to extend or modify the TEI tag set so that it fits the text\r
-that one is attempting to represent.\r
-\r
-SPERBERG-McQUEEN next outlined the administrative background of the TEI. \r
-The TEI is an international project to develop and disseminate guidelines\r
-for the encoding and interchange of machine-readable text. It is\r
-sponsored by the Association for Computers in the Humanities, the\r
-Association for Computational Linguistics, and the Association for\r
-Literary and Linguistic Computing. Representatives of numerous other\r
-professional societies sit on its advisory board. The TEI has a number\r
-of affiliated projects that have provided assistance by testing drafts of\r
-the guidelines.\r
-\r
-Among the design goals for the TEI tag set, the scheme first of all must\r
-meet the needs of research, because the TEI came out of the research\r
-community, which did not feel adequately served by existing tag sets. \r
-The tag set must be extensive as well as compatible with existing and\r
-emerging standards. In 1990, version 1.0 of the Guidelines was released\r
-(SPERBERG-McQUEEN illustrated their contents).\r
-\r
-SPERBERG-McQUEEN noted that one problem besetting electronic text has\r
-been the lack of adequate internal or external documentation for many\r
-existing electronic texts. The TEI guidelines as currently formulated\r
-contain few fixed requirements, but one of them is this: There must\r
-always be a document header, an in-file SGML tag that provides\r
-1) a bibliographic description of the electronic object one is talking\r
-about (that is, who included it, when, what for, and under which title);\r
-and 2) the copy text from which it was derived, if any. If there was\r
-no copy text or if the copy text is unknown, then one states as much.\r
-Version 2.0 of the Guidelines was scheduled to be completed in fall 1992\r
-and a revised third version is to be presented to the TEI advisory board\r
-for its endorsement this coming winter. The TEI itself exists to provide\r
-a markup language, not a marked-up text.\r
-\r
-Among the challenges the TEI has attempted to face is the need for a\r
-markup language that will work for existing projects, that is, handle the\r
-level of markup that people are using now to tag only chapter, section,\r
-and paragraph divisions and not much else. At the same time, such a\r
-language also will be able to scale up gracefully to handle the highly\r
-detailed markup which many people foresee as the future destination of\r
-much electronic text, and which is not the future destination but the\r
-present home of numerous electronic texts in specialized areas.\r
-\r
-SPERBERG-McQUEEN dismissed the lowest-common-denominator approach as\r
-unable to support the kind of applications that draw people who have\r
-never been in the public library regularly before, and make them come\r
-back. He advocated more interesting text and more intelligent text. \r
-Asserting that it is not beyond economic feasibility to have good texts,\r
-SPERBERG-McQUEEN noted that the TEI Guidelines listing 200-odd tags\r
-contains tags that one is expected to enter every time the relevant\r
-textual feature occurs. It contains all the tags that people need now,\r
-and it is not expected that everyone will tag things in the same way.\r
-\r
-The question of how people will tag the text is in large part a function\r
-of their reaction to what SPERBERG-McQUEEN termed the issue of\r
-reproducibility. What one needs to be able to reproduce are the things\r
-one wants to work with. Perhaps a more useful concept than that of\r
-reproducibility or recoverability is that of processability, that is,\r
-what can one get from an electronic text without reading it again\r
-in the original. He illustrated this contention with a page from\r
-Jan Comenius's bilingual Introduction to Latin.\r
-\r
-SPERBERG-McQUEEN returned at length to the issue of images as simulacra\r
-for the text, in order to reiterate his belief that in the long run more\r
-than images of pages of particular editions of the text are needed,\r
-because just as second-generation photocopies and second-generation\r
-microfilm degenerate, so second-generation representations tend to\r
-degenerate, and one tends to overstress some relatively trivial aspects\r
-of the text such as its layout on the page, which is not always\r
-significant, despite what the text critics might say, and slight other\r
-pieces of information such as the very important lexical ties between the\r
-English and Latin versions of Comenius's bilingual text, for example. \r
-Moreover, in many crucial respects it is easy to fool oneself concerning\r
-what a scanned image of the text will accomplish. For example, in order\r
-to study the transmission of texts, information concerning the text\r
-carrier is necessary, which scanned images simply do not always handle. \r
-Further, even the high-quality materials being produced at Cornell use\r
-much of the information that one would need if studying those books as\r
-physical objects. It is a choice that has been made. It is an arguably\r
-justifiable choice, but one does not know what color those pen strokes in\r
-the margin are or whether there was a stain on the page, because it has\r
-been filtered out. One does not know whether there were rips in the page\r
-because they do not show up, and on a couple of the marginal marks one\r
-loses half of the mark because the pen is very light and the scanner\r
-failed to pick it up, and so what is clearly a checkmark in the margin of\r
-the original becomes a little scoop in the margin of the facsimile. \r
-Standard problems for facsimile editions, not new to electronics, but\r
-also true of light-lens photography, and are remarked here because it is\r
-important that we not fool ourselves that even if we produce a very nice\r
-image of this page with good contrast, we are not replacing the\r
-manuscript any more than microfilm has replaced the manuscript.\r
-\r
-The TEI comes from the research community, where its first allegiance\r
-lies, but it is not just an academic exercise. It has relevance far\r
-beyond those who spend all of their time studying text, because one's\r
-model of text determines what one's software can do with a text. Good\r
-models lead to good software. Bad models lead to bad software. That has\r
-economic consequences, and it is these economic consequences that have\r
-led the European Community to help support the TEI, and that will lead,\r
-SPERBERG-McQUEEN hoped, some software vendors to realize that if they\r
-provide software with a better model of the text they can make a killing.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Implications of different DTDs and tag sets * ODA versus SGML *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-During the discussion that followed, several additional points were made. \r
-Neither AAP (i.e., Association of American Publishers) nor CALS (i.e.,\r
-Computer-aided Acquisition and Logistics Support) has a document-type\r
-definition for ancient Greek drama, although the TEI will be able to\r
-handle that. Given this state of affairs and assuming that the\r
-technical-journal producers and the commercial vendors decide to use the\r
-other two types, then an institution like the Library of Congress, which\r
-might receive all of their publications, would have to be able to handle\r
-three different types of document definitions and tag sets and be able to\r
-distinguish among them.\r
-\r
-Office Document Architecture (ODA) has some advantages that flow from its\r
-tight focus on office documents and clear directions for implementation. \r
-Much of the ODA standard is easier to read and clearer at first reading\r
-than the SGML standard, which is extremely general. What that means is\r
-that if one wants to use graphics in TIFF and ODA, one is stuck, because\r
-ODA defines graphics formats while TIFF does not, whereas SGML says the\r
-world is not waiting for this work group to create another graphics format.\r
-What is needed is an ability to use whatever graphics format one wants.\r
-\r
-The TEI provides a socket that allows one to connect the SGML document to\r
-the graphics. The notation that the graphics are in is clearly a choice\r
-that one needs to make based on her or his environment, and that is one\r
-advantage. SGML is less megalomaniacal in attempting to define formats\r
-for all kinds of information, though more megalomaniacal in attempting to\r
-cover all sorts of documents. The other advantage is that the model of\r
-text represented by SGML is simply an order of magnitude richer and more\r
-flexible than the model of text offered by ODA. Both offer hierarchical\r
-structures, but SGML recognizes that the hierarchical model of the text\r
-that one is looking at may not have been in the minds of the designers,\r
-whereas ODA does not.\r
-\r
-ODA is not really aiming for the kind of document that the TEI wants to\r
-encompass. The TEI can handle the kind of material ODA has, as well as a\r
-significantly broader range of material. ODA seems to be very much\r
-focused on office documents, which is what it started out being called--\r
-office document architecture.\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-CALALUCA * Text-encoding from a publisher's perspective *\r
-Responsibilities of a publisher * Reproduction of Migne's Latin series\r
-whole and complete with SGML tags based on perceived need and expected\r
-use * Particular decisions arising from the general decision to produce\r
-and publish PLD *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-The final speaker in this session, Eric CALALUCA, vice president,\r
-Chadwyck-Healey, Inc., spoke from the perspective of a publisher re\r
-text-encoding, rather than as one qualified to discuss methods of\r
-encoding data, and observed that the presenters sitting in the room,\r
-whether they had chosen to or not, were acting as publishers: making\r
-choices, gathering data, gathering information, and making assessments. \r
-CALALUCA offered the hard-won conviction that in publishing very large\r
-text files (such as PLD), one cannot avoid making personal judgments of\r
-appropriateness and structure.\r
-\r
-In CALALUCA's view, encoding decisions stem from prior judgments. Two\r
-notions have become axioms for him in the consideration of future sources\r
-for electronic publication: 1) electronic text publishing is as personal\r
-as any other kind of publishing, and questions of if and how to encode\r
-the data are simply a consequence of that prior decision; 2) all\r
-personal decisions are open to criticism, which is unavoidable.\r
-\r
-CALALUCA rehearsed his role as a publisher or, better, as an intermediary\r
-between what is viewed as a sound idea and the people who would make use\r
-of it. Finding the specialist to advise in this process is the core of\r
-that function. The publisher must monitor and hug the fine line between\r
-giving users what they want and suggesting what they might need. One\r
-responsibility of a publisher is to represent the desires of scholars and\r
-research librarians as opposed to bullheadedly forcing them into areas\r
-they would not choose to enter.\r
-\r
-CALALUCA likened the questions being raised today about data structure\r
-and standards to the decisions faced by the Abbe Migne himself during\r
-production of the Patrologia series in the mid-nineteenth century. \r
-Chadwyck-Healey's decision to reproduce Migne's Latin series whole and\r
-complete with SGML tags was also based upon a perceived need and an\r
-expected use. In the same way that Migne's work came to be far more than\r
-a simple handbook for clerics, PLD is already far more than a database\r
-for theologians. It is a bedrock source for the study of Western\r
-civilization, CALALUCA asserted.\r
-\r
-In regard to the decision to produce and publish PLD, the editorial board\r
-offered direct judgments on the question of appropriateness of these\r
-texts for conversion, their encoding and their distribution, and\r
-concluded that the best possible project was one that avoided overt\r
-intrusions or exclusions in so important a resource. Thus, the general\r
-decision to transmit the original collection as clearly as possible with\r
-the widest possible avenues for use led to other decisions: 1) To encode\r
-the data or not, SGML or not, TEI or not. Again, the expected user\r
-community asserted the need for normative tagging structures of important\r
-humanities texts, and the TEI seemed the most appropriate structure for\r
-that purpose. Research librarians, who are trained to view the larger\r
-impact of electronic text sources on 80 or 90 or 100 doctoral\r
-disciplines, loudly approved the decision to include tagging. They see\r
-what is coming better than the specialist who is completely focused on\r
-one edition of Ambrose's De Anima, and they also understand that the\r
-potential uses exceed present expectations. 2) What will be tagged and\r
-what will not. Once again, the board realized that one must tag the\r
-obvious. But in no way should one attempt to identify through encoding\r
-schemes every single discrete area of a text that might someday be\r
-searched. That was another decision. Searching by a column number, an\r
-author, a word, a volume, permitting combination searches, and tagging\r
-notations seemed logical choices as core elements. 3) How does one make\r
-the data available? Tieing it to a CD-ROM edition creates limitations,\r
-but a magnetic tape file that is very large, is accompanied by the\r
-encoding specifications, and that allows one to make local modifications\r
-also allows one to incorporate any changes one may desire within the\r
-bounds of private research, though exporting tag files from a CD-ROM\r
-could serve just as well. Since no one on the board could possibly\r
-anticipate each and every way in which a scholar might choose to mine\r
-this data bank, it was decided to satisfy the basics and make some\r
-provisions for what might come. 4) Not to encode the database would rob\r
-it of the interchangeability and portability these important texts should\r
-accommodate. For CALALUCA, the extensive options presented by full-text\r
-searching require care in text selection and strongly support encoding of\r
-data to facilitate the widest possible search strategies. Better\r
-software can always be created, but summoning the resources, the people,\r
-and the energy to reconvert the text is another matter.\r
-\r
-PLD is being encoded, captured, and distributed, because to\r
-Chadwyck-Healey and the board it offers the widest possible array of\r
-future research applications that can be seen today. CALALUCA concluded\r
-by urging the encoding of all important text sources in whatever way\r
-seems most appropriate and durable at the time, without blanching at the\r
-thought that one's work may require emendation in the future. (Thus,\r
-Chadwyck-Healey produced a very large humanities text database before the\r
-final release of the TEI Guidelines.)\r
-\r
- ******\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-DISCUSSION * Creating texts with markup advocated * Trends in encoding *\r
-The TEI and the issue of interchangeability of standards * A\r
-misconception concerning the TEI * Implications for an institution like\r
-LC in the event that a multiplicity of DTDs develops * Producing images\r
-as a first step towards possible conversion to full text through\r
-character recognition * The AAP tag sets as a common starting point and\r
-the need for caution *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-HOCKEY prefaced the discussion that followed with several comments in\r
-favor of creating texts with markup and on trends in encoding. In the\r
-future, when many more texts are available for on-line searching, real\r
-problems in finding what is wanted will develop, if one is faced with\r
-millions of words of data. It therefore becomes important to consider\r
-putting markup in texts to help searchers home in on the actual things\r
-they wish to retrieve. Various approaches to refining retrieval methods\r
-toward this end include building on a computer version of a dictionary\r
-and letting the computer look up words in it to obtain more information\r
-about the semantic structure or semantic field of a word, its grammatical\r
-structure, and syntactic structure.\r
-\r
-HOCKEY commented on the present keen interest in the encoding world\r
-in creating: 1) machine-readable versions of dictionaries that can be\r
-initially tagged in SGML, which gives a structure to the dictionary entry;\r
-these entries can then be converted into a more rigid or otherwise\r
-different database structure inside the computer, which can be treated as\r
-a dynamic tool for searching mechanisms; 2) large bodies of text to study\r
-the language. In order to incorporate more sophisticated mechanisms,\r
-more about how words behave needs to be known, which can be learned in\r
-part from information in dictionaries. However, the last ten years have\r
-seen much interest in studying the structure of printed dictionaries\r
-converted into computer-readable form. The information one derives about\r
-many words from those is only partial, one or two definitions of the\r
-common or the usual meaning of a word, and then numerous definitions of\r
-unusual usages. If the computer is using a dictionary to help retrieve\r
-words in a text, it needs much more information about the common usages,\r
-because those are the ones that occur over and over again. Hence the\r
-current interest in developing large bodies of text in computer-readable\r
-form in order to study the language. Several projects are engaged in\r
-compiling, for example, 100 million words. HOCKEY described one with\r
-which she was associated briefly at Oxford University involving\r
-compilation of 100 million words of British English: about 10 percent of\r
-that will contain detailed linguistic tagging encoded in SGML; it will\r
-have word class taggings, with words identified as nouns, verbs,\r
-adjectives, or other parts of speech. This tagging can then be used by\r
-programs which will begin to learn a bit more about the structure of the\r
-language, and then, can go to tag more text.\r
-\r
-HOCKEY said that the more that is tagged accurately, the more one can\r
-refine the tagging process and thus the bigger body of text one can build\r
-up with linguistic tagging incorporated into it. Hence, the more tagging\r
-or annotation there is in the text, the more one may begin to learn about\r
-language and the more it will help accomplish more intelligent OCR. She\r
-recommended the development of software tools that will help one begin to\r
-understand more about a text, which can then be applied to scanning\r
-images of that text in that format and to using more intelligence to help\r
-one interpret or understand the text.\r
-\r
-HOCKEY posited the need to think about common methods of text-encoding\r
-for a long time to come, because building these large bodies of text is\r
-extremely expensive and will only be done once.\r
-\r
-In the more general discussion on approaches to encoding that followed,\r
-these points were made:\r
-\r
-BESSER identified the underlying problem with standards that all have to\r
-struggle with in adopting a standard, namely, the tension between a very\r
-highly defined standard that is very interchangeable but does not work\r
-for everyone because something is lacking, and a standard that is less\r
-defined, more open, more adaptable, but less interchangeable. Contending\r
-that the way in which people use SGML is not sufficiently defined, BESSER\r
-wondered 1) if people resist the TEI because they think it is too defined\r
-in certain things they do not fit into, and 2) how progress with\r
-interchangeability can be made without frightening people away.\r
-\r
-SPERBERG-McQUEEN replied that the published drafts of the TEI had met\r
-with surprisingly little objection on the grounds that they do not allow\r
-one to handle X or Y or Z. Particular concerns of the affiliated\r
-projects have led, in practice, to discussions of how extensions are to\r
-be made; the primary concern of any project has to be how it can be\r
-represented locally, thus making interchange secondary. The TEI has\r
-received much criticism based on the notion that everything in it is\r
-required or even recommended, which, as it happens, is a misconception\r
-from the beginning, because none of it is required and very little is\r
-actually actively recommended for all cases, except that one document\r
-one's source.\r
-\r
-SPERBERG-McQUEEN agreed with BESSER about this trade-off: all the\r
-projects in a set of twenty TEI-conformant projects will not necessarily\r
-tag the material in the same way. One result of the TEI will be that the\r
-easiest problems will be solved--those dealing with the external form of\r
-the information; but the problem that is hardest in interchange is that\r
-one is not encoding what another wants, and vice versa. Thus, after\r
-the adoption of a common notation, the differences in the underlying\r
-conceptions of what is interesting about texts become more visible.\r
-The success of a standard like the TEI will lie in the ability of\r
-the recipient of interchanged texts to use some of what it contains\r
-and to add the information that was not encoded that one wants, in a\r
-layered way, so that texts can be gradually enriched and one does not\r
-have to put in everything all at once. Hence, having a well-behaved\r
-markup scheme is important.\r
-\r
-STEVENS followed up on the paradoxical analogy that BESSER alluded to in\r
-the example of the MARC records, namely, the formats that are the same\r
-except that they are different. STEVENS drew a parallel between\r
-document-type definitions and MARC records for books and serials and maps,\r
-where one has a tagging structure and there is a text-interchange. \r
-STEVENS opined that the producers of the information will set the terms\r
-for the standard (i.e., develop document-type definitions for the users\r
-of their products), creating a situation that will be problematical for\r
-an institution like the Library of Congress, which will have to deal with\r
-the DTDs in the event that a multiplicity of them develops. Thus,\r
-numerous people are seeking a standard but cannot find the tag set that\r
-will be acceptable to them and their clients. SPERBERG-McQUEEN agreed\r
-with this view, and said that the situation was in a way worse: attempting\r
-to unify arbitrary DTDs resembled attempting to unify a MARC record with a\r
-bibliographic record done according to the Prussian instructions. \r
-According to STEVENS, this situation occurred very early in the process.\r
-\r
-WATERS recalled from early discussions on Project Open Book the concern\r
-of many people that merely by producing images, POB was not really\r
-enhancing intellectual access to the material. Nevertheless, not wishing\r
-to overemphasize the opposition between imaging and full text, WATERS\r
-stated that POB views getting the images as a first step toward possibly\r
-converting to full text through character recognition, if the technology\r
-is appropriate. WATERS also emphasized that encoding is involved even\r
-with a set of images.\r
-\r
-SPERBERG-McQUEEN agreed with WATERS that one can create an SGML document\r
-consisting wholly of images. At first sight, organizing graphic images\r
-with an SGML document may not seem to offer great advantages, but the\r
-advantages of the scheme WATERS described would be precisely that\r
-ability to move into something that is more of a multimedia document:\r
-a combination of transcribed text and page images. WEIBEL concurred in\r
-this judgment, offering evidence from Project ADAPT, where a page is\r
-divided into text elements and graphic elements, and in fact the text\r
-elements are organized by columns and lines. These lines may be used as\r
-the basis for distributing documents in a network environment. As one\r
-develops software intelligent enough to recognize what those elements\r
-are, it makes sense to apply SGML to an image initially, that may, in\r
-fact, ultimately become more and more text, either through OCR or edited\r
-OCR or even just through keying. For WATERS, the labor of composing the\r
-document and saying this set of documents or this set of images belongs\r
-to this document constitutes a significant investment.\r
-\r
-WEIBEL also made the point that the AAP tag sets, while not excessively\r
-prescriptive, offer a common starting point; they do not define the\r
-structure of the documents, though. They have some recommendations about\r
-DTDs one could use as examples, but they do just suggest tag sets. For\r
-example, the CORE project attempts to use the AAP markup as much as\r
-possible, but there are clearly areas where structure must be added. \r
-That in no way contradicts the use of AAP tag sets.\r
-\r
-SPERBERG-McQUEEN noted that the TEI prepared a long working paper early\r
-on about the AAP tag set and what it lacked that the TEI thought it\r
-needed, and a fairly long critique of the naming conventions, which has\r
-led to a very different style of naming in the TEI. He stressed the\r
-importance of the opposition between prescriptive markup, the kind that a\r
-publisher or anybody can do when producing documents de novo, and\r
-descriptive markup, in which one has to take what the text carrier\r
-provides. In these particular tag sets it is easy to overemphasize this\r
-opposition, because the AAP tag set is extremely flexible. Even if one\r
-just used the DTDs, they allow almost anything to appear almost anywhere.\r
-\r
- ******\r
-\r
-SESSION VI. COPYRIGHT ISSUES\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-PETERS * Several cautions concerning copyright in an electronic\r
-environment * Review of copyright law in the United States * The notion\r
-of the public good and the desirability of incentives to promote it *\r
-What copyright protects * Works not protected by copyright * The rights\r
-of copyright holders * Publishers' concerns in today's electronic\r
-environment * Compulsory licenses * The price of copyright in a digital\r
-medium and the need for cooperation * Additional clarifications * Rough\r
-justice oftentimes the outcome in numerous copyright matters * Copyright\r
-in an electronic society * Copyright law always only sets up the\r
-boundaries; anything can be changed by contract *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-Marybeth PETERS, policy planning adviser to the Register of Copyrights,\r
-Library of Congress, made several general comments and then opened the\r
-floor to discussion of subjects of interest to the audience.\r
-\r
-Having attended several sessions in an effort to gain a sense of what\r
-people did and where copyright would affect their lives, PETERS expressed\r
-the following cautions:\r
-\r
- * If one takes and converts materials and puts them in new forms,\r
- then, from a copyright point of view, one is creating something and\r
- will receive some rights.\r
-\r
- * However, if what one is converting already exists, a question\r
- immediately arises about the status of the materials in question.\r
-\r
- * Putting something in the public domain in the United States offers\r
- some freedom from anxiety, but distributing it throughout the world\r
- on a network is another matter, even if one has put it in the public\r
- domain in the United States. Re foreign laws, very frequently a\r
- work can be in the public domain in the United States but protected\r
- in other countries. Thus, one must consider all of the places a\r
- work may reach, lest one unwittingly become liable to being faced\r
- with a suit for copyright infringement, or at least a letter\r
- demanding discussion of what one is doing.\r
-\r
-PETERS reviewed copyright law in the United States. The U.S.\r
-Constitution effectively states that Congress has the power to enact\r
-copyright laws for two purposes: 1) to encourage the creation and\r
-dissemination of intellectual works for the good of society as a whole;\r
-and, significantly, 2) to give creators and those who package and\r
-disseminate materials the economic rewards that are due them.\r
-\r
-Congress strives to strike a balance, which at times can become an\r
-emotional issue. The United States has never accepted the notion of the\r
-natural right of an author so much as it has accepted the notion of the\r
-public good and the desirability of incentives to promote it. This state\r
-of affairs, however, has created strains on the international level and\r
-is the reason for several of the differences in the laws that we have. \r
-Today the United States protects almost every kind of work that can be\r
-called an expression of an author. The standard for gaining copyright\r
-protection is simply originality. This is a low standard and means that\r
-a work is not copied from something else, as well as shows a certain\r
-minimal amount of authorship. One can also acquire copyright protection\r
-for making a new version of preexisting material, provided it manifests\r
-some spark of creativity.\r
-\r
-However, copyright does not protect ideas, methods, systems--only the way\r
-that one expresses those things. Nor does copyright protect anything\r
-that is mechanical, anything that does not involve choice, or criteria\r
-concerning whether or not one should do a thing. For example, the\r
-results of a process called declicking, in which one mechanically removes\r
-impure sounds from old recordings, are not copyrightable. On the other\r
-hand, the choice to record a song digitally and to increase the sound of\r
-violins or to bring up the tympani constitutes the results of conversion\r
-that are copyrightable. Moreover, if a work is protected by copyright in\r
-the United States, one generally needs the permission of the copyright\r
-owner to convert it. Normally, who will own the new--that is, converted-\r
--material is a matter of contract. In the absence of a contract, the\r
-person who creates the new material is the author and owner. But people\r
-do not generally think about the copyright implications until after the\r
-fact. PETERS stressed the need when dealing with copyrighted works to\r
-think about copyright in advance. One's bargaining power is much greater\r
-up front than it is down the road.\r
-\r
-PETERS next discussed works not protected by copyright, for example, any\r
-work done by a federal employee as part of his or her official duties is\r
-in the public domain in the United States. The issue is not wholly free\r
-of doubt concerning whether or not the work is in the public domain\r
-outside the United States. Other materials in the public domain include: \r
-any works published more than seventy-five years ago, and any work\r
-published in the United States more than twenty-eight years ago, whose\r
-copyright was not renewed. In talking about the new technology and\r
-putting material in a digital form to send all over the world, PETERS\r
-cautioned, one must keep in mind that while the rights may not be an\r
-issue in the United States, they may be in different parts of the world,\r
-where most countries previously employed a copyright term of the life of\r
-the author plus fifty years.\r
-\r
-PETERS next reviewed the economics of copyright holding. Simply,\r
-economic rights are the rights to control the reproduction of a work in\r
-any form. They belong to the author, or in the case of a work made for\r
-hire, the employer. The second right, which is critical to conversion,\r
-is the right to change a work. The right to make new versions is perhaps\r
-one of the most significant rights of authors, particularly in an\r
-electronic world. The third right is the right to publish the work and\r
-the right to disseminate it, something that everyone who deals in an\r
-electronic medium needs to know. The basic rule is if a copy is sold,\r
-all rights of distribution are extinguished with the sale of that copy. \r
-The key is that it must be sold. A number of companies overcome this\r
-obstacle by leasing or renting their product. These companies argue that\r
-if the material is rented or leased and not sold, they control the uses\r
-of a work. The fourth right, and one very important in a digital world,\r
-is a right of public performance, which means the right to show the work\r
-sequentially. For example, copyright owners control the showing of a\r
-CD-ROM product in a public place such as a public library. The reverse\r
-side of public performance is something called the right of public\r
-display. Moral rights also exist, which at the federal level apply only\r
-to very limited visual works of art, but in theory may apply under\r
-contract and other principles. Moral rights may include the right of an\r
-author to have his or her name on a work, the right of attribution, and\r
-the right to object to distortion or mutilation--the right of integrity.\r
-\r
-The way copyright law is worded gives much latitude to activities such as\r
-preservation; to use of material for scholarly and research purposes when\r
-the user does not make multiple copies; and to the generation of\r
-facsimile copies of unpublished works by libraries for themselves and\r
-other libraries. But the law does not allow anyone to become the\r
-distributor of the product for the entire world. In today's electronic\r
-environment, publishers are extremely concerned that the entire world is\r
-networked and can obtain the information desired from a single copy in a\r
-single library. Hence, if there is to be only one sale, which publishers\r
-may choose to live with, they will obtain their money in other ways, for\r
-example, from access and use. Hence, the development of site licenses\r
-and other kinds of agreements to cover what publishers believe they\r
-should be compensated for. Any solution that the United States takes\r
-today has to consider the international arena.\r
-\r
-Noting that the United States is a member of the Berne Convention and\r
-subscribes to its provisions, PETERS described the permissions process. \r
-She also defined compulsory licenses. A compulsory license, of which the\r
-United States has had a few, builds into the law the right to use a work\r
-subject to certain terms and conditions. In the international arena,\r
-however, the ability to use compulsory licenses is extremely limited. \r
-Thus, clearinghouses and other collectives comprise one option that has\r
-succeeded in providing for use of a work. Often overlooked when one\r
-begins to use copyrighted material and put products together is how\r
-expensive the permissions process and managing it is. According to\r
-PETERS, the price of copyright in a digital medium, whatever solution is\r
-worked out, will include managing and assembling the database. She\r
-strongly recommended that publishers and librarians or people with\r
-various backgrounds cooperate to work out administratively feasible\r
-systems, in order to produce better results.\r
-\r
-In the lengthy question-and-answer period that followed PETERS's\r
-presentation, the following points emerged:\r
-\r
- * The Copyright Office maintains that anything mechanical and\r
- totally exhaustive probably is not protected. In the event that\r
- what an individual did in developing potentially copyrightable\r
- material is not understood, the Copyright Office will ask about the\r
- creative choices the applicant chose to make or not to make. As a\r
- practical matter, if one believes she or he has made enough of those\r
- choices, that person has a right to assert a copyright and someone\r
- else must assert that the work is not copyrightable. The more\r
- mechanical, the more automatic, a thing is, the less likely it is to\r
- be copyrightable.\r
-\r
- * Nearly all photographs are deemed to be copyrightable, but no one\r
- worries about them much, because everyone is free to take the same\r
- image. Thus, a photographic copyright represents what is called a\r
- "thin" copyright. The photograph itself must be duplicated, in\r
- order for copyright to be violated.\r
-\r
- * The Copyright Office takes the position that X-rays are not\r
- copyrightable because they are mechanical. It can be argued\r
- whether or not image enhancement in scanning can be protected. One\r
- must exercise care with material created with public funds and\r
- generally in the public domain. An article written by a federal\r
- employee, if written as part of official duties, is not\r
- copyrightable. However, control over a scientific article written\r
- by a National Institutes of Health grantee (i.e., someone who\r
- receives money from the U.S. government), depends on NIH policy. If\r
- the government agency has no policy (and that policy can be\r
- contained in its regulations, the contract, or the grant), the\r
- author retains copyright. If a provision of the contract, grant, or\r
- regulation states that there will be no copyright, then it does not\r
- exist. When a work is created, copyright automatically comes into\r
- existence unless something exists that says it does not.\r
-\r
- * An enhanced electronic copy of a print copy of an older reference\r
- work in the public domain that does not contain copyrightable new\r
- material is a purely mechanical rendition of the original work, and\r
- is not copyrightable.\r
-\r
- * Usually, when a work enters the public domain, nothing can remove\r
- it. For example, Congress recently passed into law the concept of\r
- automatic renewal, which means that copyright on any work published\r
- between l964 and l978 does not have to be renewed in order to\r
- receive a seventy-five-year term. But any work not renewed before\r
- 1964 is in the public domain.\r
-\r
- * Concerning whether or not the United States keeps track of when\r
- authors die, nothing was ever done, nor is anything being done at\r
- the moment by the Copyright Office.\r
-\r
- * Software that drives a mechanical process is itself copyrightable. \r
- If one changes platforms, the software itself has a copyright. The\r
- World Intellectual Property Organization will hold a symposium 28\r
- March through 2 April l993, at Harvard University, on digital\r
- technology, and will study this entire issue. If one purchases a\r
- computer software package, such as MacPaint, and creates something\r
- new, one receives protection only for that which has been added.\r
-\r
-PETERS added that often in copyright matters, rough justice is the\r
-outcome, for example, in collective licensing, ASCAP (i.e., American\r
-Society of Composers, Authors, and Publishers), and BMI (i.e., Broadcast\r
-Music, Inc.), where it may seem that the big guys receive more than their\r
-due. Of course, people ought not to copy a creative product without\r
-paying for it; there should be some compensation. But the truth of the\r
-world, and it is not a great truth, is that the big guy gets played on\r
-the radio more frequently than the little guy, who has to do much more\r
-until he becomes a big guy. That is true of every author, every\r
-composer, everyone, and, unfortunately, is part of life.\r
-\r
-Copyright always originates with the author, except in cases of works\r
-made for hire. (Most software falls into this category.) When an author\r
-sends his article to a journal, he has not relinquished copyright, though\r
-he retains the right to relinquish it. The author receives absolutely\r
-everything. The less prominent the author, the more leverage the\r
-publisher will have in contract negotiations. In order to transfer the\r
-rights, the author must sign an agreement giving them away.\r
-\r
-In an electronic society, it is important to be able to license a writer\r
-and work out deals. With regard to use of a work, it usually is much\r
-easier when a publisher holds the rights. In an electronic era, a real\r
-problem arises when one is digitizing and making information available. \r
-PETERS referred again to electronic licensing clearinghouses. Copyright\r
-ought to remain with the author, but as one moves forward globally in the\r
-electronic arena, a middleman who can handle the various rights becomes\r
-increasingly necessary.\r
-\r
-The notion of copyright law is that it resides with the individual, but\r
-in an on-line environment, where a work can be adapted and tinkered with\r
-by many individuals, there is concern. If changes are authorized and\r
-there is no agreement to the contrary, the person who changes a work owns\r
-the changes. To put it another way, the person who acquires permission\r
-to change a work technically will become the author and the owner, unless\r
-some agreement to the contrary has been made. It is typical for the\r
-original publisher to try to control all of the versions and all of the\r
-uses. Copyright law always only sets up the boundaries. Anything can be\r
-changed by contract.\r
-\r
- ******\r
-\r
-SESSION VII. CONCLUSION\r
-\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-GENERAL DISCUSSION * Two questions for discussion * Different emphases in\r
-the Workshop * Bringing the text and image partisans together *\r
-Desiderata in planning the long-term development of something * Questions\r
-surrounding the issue of electronic deposit * Discussion of electronic\r
-deposit as an allusion to the issue of standards * Need for a directory\r
-of preservation projects in digital form and for access to their\r
-digitized files * CETH's catalogue of machine-readable texts in the\r
-humanities * What constitutes a publication in the electronic world? *\r
-Need for LC to deal with the concept of on-line publishing * LC's Network\r
-Development Office exploring the limits of MARC as a standard in terms\r
-of handling electronic information * Magnitude of the problem and the\r
-need for distributed responsibility in order to maintain and store\r
-electronic information * Workshop participants to be viewed as a starting\r
-point * Development of a network version of AM urged * A step toward AM's\r
-construction of some sort of apparatus for network access * A delicate\r
-and agonizing policy question for LC * Re the issue of electronic\r
-deposit, LC urged to initiate a catalytic process in terms of distributed\r
-responsibility * Suggestions for cooperative ventures * Commercial\r
-publishers' fears * Strategic questions for getting the image and text\r
-people to think through long-term cooperation * Clarification of the\r
-driving force behind both the Perseus and the Cornell Xerox projects *\r
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\r
-\r
-In his role as moderator of the concluding session, GIFFORD raised two\r
-questions he believed would benefit from discussion: 1) Are there enough\r
-commonalities among those of us that have been here for two days so that\r
-we can see courses of action that should be taken in the future? And, if\r
-so, what are they and who might take them? 2) Partly derivative from\r
-that, but obviously very dangerous to LC as host, do you see a role for\r
-the Library of Congress in all this? Of course, the Library of Congress\r
-holds a rather special status in a number of these matters, because it is\r
-not perceived as a player with an economic stake in them, but are there\r
-roles that LC can play that can help advance us toward where we are heading?\r
-\r
-Describing himself as an uninformed observer of the technicalities of the\r
-last two days, GIFFORD detected three different emphases in the Workshop: \r
-1) people who are very deeply committed to text; 2) people who are almost\r
-passionate about images; and 3) a few people who are very committed to\r
-what happens to the networks. In other words, the new networking\r
-dimension, the accessibility of the processability, the portability of\r
-all this across the networks. How do we pull those three together?\r
-\r
-Adding a question that reflected HOCKEY's comment that this was the\r
-fourth workshop she had attended in the previous thirty days, FLEISCHHAUER\r
-wondered to what extent this meeting had reinvented the wheel, or if it\r
-had contributed anything in the way of bringing together a different group\r
-of people from those who normally appear on the workshop circuit.\r
-\r
-HOCKEY confessed to being struck at this meeting and the one the\r
-Electronic Pierce Consortium organized the previous week that this was a\r
-coming together of people working on texts and not images. Attempting to\r
-bring the two together is something we ought to be thinking about for the\r
-future: How one can think about working with image material to begin\r
-with, but structuring it and digitizing it in such a way that at a later\r
-stage it can be interpreted into text, and find a common way of building\r
-text and images together so that they can be used jointly in the future,\r
-with the network support to begin there because that is how people will\r
-want to access it.\r
-\r
-In planning the long-term development of something, which is what is\r
-being done in electronic text, HOCKEY stressed the importance not only\r
-of discussing the technical aspects of how one does it but particularly\r
-of thinking about what the people who use the stuff will want to do.\r
-But conversely, there are numerous things that people start to do with\r
-electronic text or material that nobody ever thought of in the beginning.\r
-\r
-LESK, in response to the question concerning the role of the Library of\r
-Congress, remarked the often suggested desideratum of having electronic\r
-deposit: Since everything is now computer-typeset, an entire decade of\r
-material that was machine-readable exists, but the publishers frequently\r
-did not save it; has LC taken any action to have its copyright deposit\r
-operation start collecting these machine-readable versions? In the\r
-absence of PETERS, GIFFORD replied that the question was being\r
-actively considered but that that was only one dimension of the problem.\r
-Another dimension is the whole question of the integrity of the original\r
-electronic document. It becomes highly important in science to prove\r
-authorship. How will that be done?\r
-\r
-ERWAY explained that, under the old policy, to make a claim for a\r
-copyright for works that were published in electronic form, including\r
-software, one had to submit a paper copy of the first and last twenty\r
-pages of code--something that represented the work but did not include\r
-the entire work itself and had little value to anyone. As a temporary\r
-measure, LC has claimed the right to demand electronic versions of\r
-electronic publications. This measure entails a proactive role for the\r
-Library to say that it wants a particular electronic version. Publishers\r
-then have perhaps a year to submit it. But the real problem for LC is\r
-what to do with all this material in all these different formats. Will\r
-the Library mount it? How will it give people access to it? How does LC\r
-keep track of the appropriate computers, software, and media? The situation\r
-is so hard to control, ERWAY said, that it makes sense for each publishing\r
-house to maintain its own archive. But LC cannot enforce that either.\r
-\r
-GIFFORD acknowledged LESK's suggestion that establishing a priority\r
-offered the solution, albeit a fairly complicated one. But who maintains\r
-that register?, he asked. GRABER noted that LC does attempt to collect a\r
-Macintosh version and the IBM-compatible version of software. It does\r
-not collect other versions. But while true for software, BYRUM observed,\r
-this reply does not speak to materials, that is, all the materials that\r
-were published that were on somebody's microcomputer or driver tapes\r
-at a publishing office across the country. LC does well to acquire\r
-specific machine-readable products selectively that were intended to be\r
-machine-readable. Materials that were in machine-readable form at one time,\r
-BYRUM said, would be beyond LC's capability at the moment, insofar as\r
-attempting to acquire, organize, and preserve them are concerned--and\r
-preservation would be the most important consideration. In this\r
-connection, GIFFORD reiterated the need to work out some sense of\r
-distributive responsibility for a number of these issues, which\r
-inevitably will require significant cooperation and discussion.\r
-Nobody can do it all.\r
-\r
-LESK suggested that some publishers may look with favor on LC beginning\r
-to serve as a depository of tapes in an electronic manuscript standard. \r
-Publishers may view this as a service that they did not have to perform\r
-and they might send in tapes. However, SPERBERG-McQUEEN countered,\r
-although publishers have had equivalent services available to them for a\r
-long time, the electronic text archive has never turned away or been\r
-flooded with tapes and is forever sending feedback to the depositor. \r
-Some publishers do send in tapes.\r
-\r
-ANDRE viewed this discussion as an allusion to the issue of standards. \r
-She recommended that the AAP standard and the TEI, which has already been\r
-somewhat harmonized internationally and which also shares several\r
-compatibilities with the AAP, be harmonized to ensure sufficient\r
-compatibility in the software. She drew the line at saying LC ought to\r
-be the locus or forum for such harmonization.\r
-\r
-Taking the group in a slightly different direction, but one where at\r
-least in the near term LC might play a helpful role, LYNCH remarked the\r
-plans of a number of projects to carry out preservation by creating\r
-digital images that will end up in on-line or near-line storage at some\r
-institution. Presumably, LC will link this material somehow to its\r
-on-line catalog in most cases. Thus, it is in a digital form. LYNCH had\r
-the impression that many of these institutions would be willing to make\r
-those files accessible to other people outside the institution, provided\r
-that there is no copyright problem. This desideratum will require\r
-propagating the knowledge that those digitized files exist, so that they\r
-can end up in other on-line catalogs. Although uncertain about the\r
-mechanism for achieving this result, LYNCH said that it warranted\r
-scrutiny because it seemed to be connected to some of the basic issues of\r
-cataloging and distribution of records. It would be foolish, given the\r
-amount of work that all of us have to do and our meager resources, to\r
-discover multiple institutions digitizing the same work. Re microforms,\r
-LYNCH said, we are in pretty good shape.\r
-\r
-BATTIN called this a big problem and noted that the Cornell people (who\r
-had already departed) were working on it. At issue from the beginning\r
-was to learn how to catalog that information into RLIN and then into\r
-OCLC, so that it would be accessible. That issue remains to be resolved. \r
-LYNCH rejoined that putting it into OCLC or RLIN was helpful insofar as\r
-somebody who is thinking of performing preservation activity on that work\r
-could learn about it. It is not necessarily helpful for institutions to\r
-make that available. BATTIN opined that the idea was that it not only be\r
-for preservation purposes but for the convenience of people looking for\r
-this material. She endorsed LYNCH's dictum that duplication of this\r
-effort was to be avoided by every means.\r
-\r
-HOCKEY informed the Workshop about one major current activity of CETH,\r
-namely a catalogue of machine-readable texts in the humanities. Held on\r
-RLIN at present, the catalogue has been concentrated on ASCII as opposed\r
-to digitized images of text. She is exploring ways to improve the\r
-catalogue and make it more widely available, and welcomed suggestions\r
-about these concerns. CETH owns the records, which are not just\r
-restricted to RLIN, and can distribute them however it wishes.\r
-\r
-Taking up LESK's earlier question, BATTIN inquired whether LC, since it\r
-is accepting electronic files and designing a mechanism for dealing with\r
-that rather than putting books on shelves, would become responsible for\r
-the National Copyright Depository of Electronic Materials. Of course\r
-that could not be accomplished overnight, but it would be something LC\r
-could plan for. GIFFORD acknowledged that much thought was being devoted\r
-to that set of problems and returned the discussion to the issue raised\r
-by LYNCH--whether or not putting the kind of records that both BATTIN and\r
-HOCKEY have been talking about in RLIN is not a satisfactory solution. \r
-It seemed to him that RLIN answered LYNCH's original point concerning\r
-some kind of directory for these kinds of materials. In a situation\r
-where somebody is attempting to decide whether or not to scan this or\r
-film that or to learn whether or not someone has already done so, LYNCH\r
-suggested, RLIN is helpful, but it is not helpful in the case of a local,\r
-on-line catalogue. Further, one would like to have her or his system be\r
-aware that that exists in digital form, so that one can present it to a\r
-patron, even though one did not digitize it, if it is out of copyright. \r
-The only way to make those linkages would be to perform a tremendous\r
-amount of real-time look-up, which would be awkward at best, or\r
-periodically to yank the whole file from RLIN and match it against one's\r
-own stuff, which is a nuisance.\r
-\r
-But where, ERWAY inquired, does one stop including things that are\r
-available with Internet, for instance, in one's local catalogue?\r
-It almost seems that that is LC's means to acquire access to them.\r
-That represents LC's new form of library loan. Perhaps LC's new on-line\r
-catalogue is an amalgamation of all these catalogues on line. LYNCH\r
-conceded that perhaps that was true in the very long term, but was not\r
-applicable to scanning in the short term. In his view, the totals cited\r
-by Yale, 10,000 books over perhaps a four-year period, and 1,000-1,500\r
-books from Cornell, were not big numbers, while searching all over\r
-creation for relatively rare occurrences will prove to be less efficient. \r
-As GIFFORD wondered if this would not be a separable file on RLIN and\r
-could be requested from them, BATTIN interjected that it was easily\r
-accessible to an institution. SEVERTSON pointed out that that file, cum\r
-enhancements, was available with reference information on CD-ROM, which\r
-makes it a little more available.\r
-\r
-In HOCKEY's view, the real question facing the Workshop is what to put in\r
-this catalogue, because that raises the question of what constitutes a\r
-publication in the electronic world. (WEIBEL interjected that Eric Joule\r
-in OCLC's Office of Research is also wrestling with this particular\r
-problem, while GIFFORD thought it sounded fairly generic.) HOCKEY\r
-contended that a majority of texts in the humanities are in the hands\r
-of either a small number of large research institutions or individuals\r
-and are not generally available for anyone else to access at all.\r
-She wondered if these texts ought to be catalogued.\r
-\r
-After argument proceeded back and forth for several minutes over why\r
-cataloguing might be a necessary service, LEBRON suggested that this\r
-issue involved the responsibility of a publisher. The fact that someone\r
-has created something electronically and keeps it under his or her\r
-control does not constitute publication. Publication implies\r
-dissemination. While it would be important for a scholar to let other\r
-people know that this creation exists, in many respects this is no\r
-different from an unpublished manuscript. That is what is being accessed\r
-in there, except that now one is not looking at it in the hard-copy but\r
-in the electronic environment.\r
-\r
-LEBRON expressed puzzlement at the variety of ways electronic publishing\r
-has been viewed. Much of what has been discussed throughout these two\r
-days has concerned CD-ROM publishing, whereas in the on-line environment\r
-that she confronts, the constraints and challenges are very different. \r
-Sooner or later LC will have to deal with the concept of on-line\r
-publishing. Taking up the comment ERWAY made earlier about storing\r
-copies, LEBRON gave her own journal as an example. How would she deposit\r
-OJCCT for copyright?, she asked, because the journal will exist in the\r
-mainframe at OCLC and people will be able to access it. Here the\r
-situation is different, ownership versus access, and is something that\r
-arises with publication in the on-line environment, faster than is\r
-sometimes realized. Lacking clear answers to all of these questions\r
-herself, LEBRON did not anticipate that LC would be able to take a role\r
-in helping to define some of them for quite a while.\r
-\r
-GREENFIELD observed that LC's Network Development Office is attempting,\r
-among other things, to explore the limits of MARC as a standard in terms\r
-of handling electronic information. GREENFIELD also noted that Rebecca\r
-GUENTHER from that office gave a paper to the American Society for\r
-Information Science (ASIS) summarizing several of the discussion papers\r
-that were coming out of the Network Development Office. GREENFIELD said\r
-he understood that that office had a list-server soliciting just the kind\r
-of feedback received today concerning the difficulties of identifying and\r
-cataloguing electronic information. GREENFIELD hoped that everybody\r
-would be aware of that and somehow contribute to that conversation.\r
-\r
-Noting two of LC's roles, first, to act as a repository of record for\r
-material that is copyrighted in this country, and second, to make\r
-materials it holds available in some limited form to a clientele that\r
-goes beyond Congress, BESSER suggested that it was incumbent on LC to\r
-extend those responsibilities to all the things being published in\r
-electronic form. This would mean eventually accepting electronic\r
-formats. LC could require that at some point they be in a certain\r
-limited set of formats, and then develop mechanisms for allowing people\r
-to access those in the same way that other things are accessed. This\r
-does not imply that they are on the network and available to everyone. \r
-LC does that with most of its bibliographic records, BESSER said, which\r
-end up migrating to the utility (e.g., OCLC) or somewhere else. But just\r
-as most of LC's books are available in some form through interlibrary\r
-loan or some other mechanism, so in the same way electronic formats ought\r
-to be available to others in some format, though with some copyright\r
-considerations. BESSER was not suggesting that these mechanisms be\r
-established tomorrow, only that they seemed to fall within LC's purview,\r
-and that there should be long-range plans to establish them.\r
-\r
-Acknowledging that those from LC in the room agreed with BESSER\r
-concerning the need to confront difficult questions, GIFFORD underscored\r
-the magnitude of the problem of what to keep and what to select. GIFFORD\r
-noted that LC currently receives some 31,000 items per day, not counting\r
-electronic materials, and argued for much more distributed responsibility\r
-in order to maintain and store electronic information.\r
-\r
-BESSER responded that the assembled group could be viewed as a starting\r
-point, whose initial operating premise could be helping to move in this\r
-direction and defining how LC could do so, for example, in areas of\r
-standardization or distribution of responsibility.\r
-\r
-FLEISCHHAUER added that AM was fully engaged, wrestling with some of the\r
-questions that pertain to the conversion of older historical materials,\r
-which would be one thing that the Library of Congress might do. Several\r
-points mentioned by BESSER and several others on this question have a\r
-much greater impact on those who are concerned with cataloguing and the\r
-networking of bibliographic information, as well as preservation itself.\r
-\r
-Speaking directly to AM, which he considered was a largely uncopyrighted\r
-database, LYNCH urged development of a network version of AM, or\r
-consideration of making the data in it available to people interested in\r
-doing network multimedia. On account of the current great shortage of\r
-digital data that is both appealing and unencumbered by complex rights\r
-problems, this course of action could have a significant effect on making\r
-network multimedia a reality.\r
-\r
-In this connection, FLEISCHHAUER reported on a fragmentary prototype in\r
-LC's Office of Information Technology Services that attempts to associate\r
-digital images of photographs with cataloguing information in ways that\r
-work within a local area network--a step, so to say, toward AM's\r
-construction of some sort of apparatus for access. Further, AM has\r
-attempted to use standard data forms in order to help make that\r
-distinction between the access tools and the underlying data, and thus\r
-believes that the database is networkable.\r
-\r
-A delicate and agonizing policy question for LC, however, which comes\r
-back to resources and unfortunately has an impact on this, is to find\r
-some appropriate, honorable, and legal cost-recovery possibilities. A\r
-certain skittishness concerning cost-recovery has made people unsure\r
-exactly what to do. AM would be highly receptive to discussing further\r
-LYNCH's offer to test or demonstrate its database in a network\r
-environment, FLEISCHHAUER said.\r
-\r
-Returning the discussion to what she viewed as the vital issue of\r
-electronic deposit, BATTIN recommended that LC initiate a catalytic\r
-process in terms of distributed responsibility, that is, bring together\r
-the distributed organizations and set up a study group to look at all\r
-these issues and see where we as a nation should move. The broader\r
-issues of how we deal with the management of electronic information will\r
-not disappear, but only grow worse.\r
-\r
-LESK took up this theme and suggested that LC attempt to persuade one\r
-major library in each state to deal with its state equivalent publisher,\r
-which might produce a cooperative project that would be equitably\r
-distributed around the country, and one in which LC would be dealing with\r
-a minimal number of publishers and minimal copyright problems.\r
-\r
-GRABER remarked the recent development in the scientific community of a\r
-willingness to use SGML and either deposit or interchange on a fairly\r
-standardized format. He wondered if a similar movement was taking place\r
-in the humanities. Although the National Library of Medicine found only\r
-a few publishers to cooperate in a like venture two or three years ago, a\r
-new effort might generate a much larger number willing to cooperate.\r
-\r
-KIMBALL recounted his unit's (Machine-Readable Collections Reading Room)\r
-troubles with the commercial publishers of electronic media in acquiring\r
-materials for LC's collections, in particular the publishers' fear that\r
-they would not be able to cover their costs and would lose control of\r
-their products, that LC would give them away or sell them and make\r
-profits from them. He doubted that the publishing industry was prepared\r
-to move into this area at the moment, given its resistance to allowing LC\r
-to use its machine-readable materials as the Library would like.\r
-\r
-The copyright law now addresses compact disk as a medium, and LC can\r
-request one copy of that, or two copies if it is the only version, and\r
-can request copies of software, but that fails to address magazines or\r
-books or anything like that which is in machine-readable form.\r
-\r
-GIFFORD acknowledged the thorny nature of this issue, which he illustrated\r
-with the example of the cumbersome process involved in putting a copy of a\r
-scientific database on a LAN in LC's science reading room. He also\r
-acknowledged that LC needs help and could enlist the energies and talents\r
-of Workshop participants in thinking through a number of these problems.\r
-\r
-GIFFORD returned the discussion to getting the image and text people to\r
-think through together where they want to go in the long term. MYLONAS\r
-conceded that her experience at the Pierce Symposium the previous week at\r
-Georgetown University and this week at LC had forced her to reevaluate\r
-her perspective on the usefulness of text as images. MYLONAS framed the\r
-issues in a series of questions: How do we acquire machine-readable\r
-text? Do we take pictures of it and perform OCR on it later? Is it\r
-important to obtain very high-quality images and text, etc.? \r
-FLEISCHHAUER agreed with MYLONAS's framing of strategic questions, adding\r
-that a large institution such as LC probably has to do all of those\r
-things at different times. Thus, the trick is to exercise judgment. The\r
-Workshop had added to his and AM's considerations in making those\r
-judgments. Concerning future meetings or discussions, MYLONAS suggested\r
-that screening priorities would be helpful.\r
-\r
-WEIBEL opined that the diversity reflected in this group was a sign both\r
-of the health and of the immaturity of the field, and more time would\r
-have to pass before we convince one another concerning standards.\r
-\r
-An exchange between MYLONAS and BATTIN clarified the point that the\r
-driving force behind both the Perseus and the Cornell Xerox projects was\r
-the preservation of knowledge for the future, not simply for particular\r
-research use. In the case of Perseus, MYLONAS said, the assumption was\r
-that the texts would not be entered again into electronically readable\r
-form. SPERBERG-McQUEEN added that a scanned image would not serve as an\r
-archival copy for purposes of preservation in the case of, say, the Bill\r
-of Rights, in the sense that the scanned images are effectively the\r
-archival copies for the Cornell mathematics books.\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- Appendix I: PROGRAM\r
-\r
-\r
-\r
- WORKSHOP\r
- ON\r
- ELECTRONIC\r
- TEXTS\r
-\r
-\r
-\r
- 9-10 June 1992\r
-\r
- Library of Congress\r
- Washington, D.C.\r
-\r
-\r
-\r
- Supported by a Grant from the David and Lucile Packard Foundation\r
-\r
-\r
-Tuesday, 9 June 1992\r
-\r
-NATIONAL DEMONSTRATION LAB, ATRIUM, LIBRARY MADISON\r
-\r
-8:30 AM Coffee and Danish, registration\r
-\r
-9:00 AM Welcome\r
-\r
- Prosser Gifford, Director for Scholarly Programs, and Carl\r
- Fleischhauer, Coordinator, American Memory, Library of\r
- Congress\r
-\r
-9:l5 AM Session I. Content in a New Form: Who Will Use It and What\r
- Will They Do?\r
-\r
- Broad description of the range of electronic information. \r
- Characterization of who uses it and how it is or may be used. \r
- In addition to a look at scholarly uses, this session will\r
- include a presentation on use by students (K-12 and college)\r
- and the general public.\r
-\r
- Moderator: James Daly\r
- Avra Michelson, Archival Research and Evaluation Staff,\r
- National Archives and Records Administration (Overview)\r
- Susan H. Veccia, Team Leader, American Memory, User Evaluation,\r
- and\r
- Joanne Freeman, Associate Coordinator, American Memory, Library\r
- of Congress (Beyond the scholar)\r
-\r
-10:30-\r
-11:00 AM Break\r
-\r
-11:00 AM Session II. Show and Tell.\r
-\r
- Each presentation to consist of a fifteen-minute\r
- statement/show; group discussion will follow lunch.\r
-\r
- Moderator: Jacqueline Hess, Director, National Demonstration\r
- Lab\r
-\r
- 1. A classics project, stressing texts and text retrieval\r
- more than multimedia: Perseus Project, Harvard\r
- University\r
- Elli Mylonas, Managing Editor\r
-\r
- 2. Other humanities projects employing the emerging norms of\r
- the Text Encoding Initiative (TEI): Chadwyck-Healey's\r
- The English Poetry Full Text Database and/or Patrologia\r
- Latina Database\r
- Eric M. Calaluca, Vice President, Chadwyck-Healey, Inc.\r
-\r
- 3. American Memory\r
- Carl Fleischhauer, Coordinator, and\r
- Ricky Erway, Associate Coordinator, Library of Congress\r
-\r
- 4. Founding Fathers example from Packard Humanities\r
- Institute: The Papers of George Washington, University\r
- of Virginia\r
- Dorothy Twohig, Managing Editor, and/or\r
- David Woodley Packard\r
-\r
- 5. An electronic medical journal offering graphics and\r
- full-text searchability: The Online Journal of Current\r
- Clinical Trials, American Association for the Advancement\r
- of Science\r
- Maria L. Lebron, Managing Editor\r
-\r
- 6. A project that offers facsimile images of pages but omits\r
- searchable text: Cornell math books\r
- Lynne K. Personius, Assistant Director, Cornell\r
- Information Technologies for Scholarly Information\r
- Sources, Cornell University\r
-\r
-12:30 PM Lunch (Dining Room A, Library Madison 620. Exhibits\r
- available.)\r
-\r
-1:30 PM Session II. Show and Tell (Cont'd.).\r
-\r
-3:00-\r
-3:30 PM Break\r
-\r
-3:30-\r
-5:30 PM Session III. Distribution, Networks, and Networking: Options\r
- for Dissemination.\r
-\r
- Published disks: University presses and public-sector\r
- publishers, private-sector publishers\r
- Computer networks\r
-\r
- Moderator: Robert G. Zich, Special Assistant to the Associate\r
- Librarian for Special Projects, Library of Congress\r
- Clifford A. Lynch, Director, Library Automation, University of\r
- California\r
- Howard Besser, School of Library and Information Science,\r
- University of Pittsburgh\r
- Ronald L. Larsen, Associate Director of Libraries for\r
- Information Technology, University of Maryland at College\r
- Park\r
- Edwin B. Brownrigg, Executive Director, Memex Research\r
- Institute\r
-\r
-6:30 PM Reception (Montpelier Room, Library Madison 619.)\r
-\r
- ******\r
-\r
-Wednesday, 10 June 1992\r
-\r
-DINING ROOM A, LIBRARY MADISON 620\r
-\r
-8:30 AM Coffee and Danish\r
-\r
-9:00 AM Session IV. Image Capture, Text Capture, Overview of Text and\r
- Image Storage Formats.\r
-\r
- Moderator: William L. Hooton, Vice President of Operations,\r
- I-NET\r
-\r
- A) Principal Methods for Image Capture of Text:\r
- Direct scanning\r
- Use of microform\r
-\r
- Anne R. Kenney, Assistant Director, Department of Preservation\r
- and Conservation, Cornell University\r
- Pamela Q.J. Andre, Associate Director, Automation, and\r
- Judith A. Zidar, Coordinator, National Agricultural Text\r
- Digitizing Program (NATDP), National Agricultural Library\r
- (NAL)\r
- Donald J. Waters, Head, Systems Office, Yale University Library\r
-\r
- B) Special Problems:\r
- Bound volumes\r
- Conservation\r
- Reproducing printed halftones\r
-\r
- Carl Fleischhauer, Coordinator, American Memory, Library of\r
- Congress\r
- George Thoma, Chief, Communications Engineering Branch,\r
- National Library of Medicine (NLM)\r
-\r
-10:30-\r
-11:00 AM Break\r
-\r
-11:00 AM Session IV. Image Capture, Text Capture, Overview of Text and\r
- Image Storage Formats (Cont'd.).\r
-\r
- C) Image Standards and Implications for Preservation\r
-\r
- Jean Baronas, Senior Manager, Department of Standards and\r
- Technology, Association for Information and Image Management\r
- (AIIM)\r
- Patricia Battin, President, The Commission on Preservation and\r
- Access (CPA)\r
-\r
- D) Text Conversion:\r
- OCR vs. rekeying\r
- Standards of accuracy and use of imperfect texts\r
- Service bureaus\r
-\r
- Stuart Weibel, Senior Research Specialist, Online Computer\r
- Library Center, Inc. (OCLC)\r
- Michael Lesk, Executive Director, Computer Science Research,\r
- Bellcore\r
- Ricky Erway, Associate Coordinator, American Memory, Library of\r
- Congress\r
- Pamela Q.J. Andre, Associate Director, Automation, and\r
- Judith A. Zidar, Coordinator, National Agricultural Text\r
- Digitizing Program (NATDP), National Agricultural Library\r
- (NAL)\r
-\r
-12:30-\r
-1:30 PM Lunch\r
-\r
-1:30 PM Session V. Approaches to Preparing Electronic Texts.\r
-\r
- Discussion of approaches to structuring text for the computer;\r
- pros and cons of text coding, description of methods in\r
- practice, and comparison of text-coding methods.\r
-\r
- Moderator: Susan Hockey, Director, Center for Electronic Texts\r
- in the Humanities (CETH), Rutgers and Princeton Universities\r
- David Woodley Packard\r
- C.M. Sperberg-McQueen, Editor, Text Encoding Initiative (TEI),\r
- University of Illinois-Chicago\r
- Eric M. Calaluca, Vice President, Chadwyck-Healey, Inc.\r
-\r
-3:30-\r
-4:00 PM Break\r
-\r
-4:00 PM Session VI. Copyright Issues.\r
-\r
- Marybeth Peters, Policy Planning Adviser to the Register of\r
- Copyrights, Library of Congress\r
-\r
-5:00 PM Session VII. Conclusion.\r
-\r
- General discussion.\r
- What topics were omitted or given short shrift that anyone\r
- would like to talk about now?\r
- Is there a "group" here? What should the group do next, if\r
- anything? What should the Library of Congress do next, if\r
- anything?\r
- Moderator: Prosser Gifford, Director for Scholarly Programs,\r
- Library of Congress\r
-\r
-6:00 PM Adjourn\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- Appendix II: ABSTRACTS\r
-\r
-\r
-SESSION I\r
-\r
-Avra MICHELSON Forecasting the Use of Electronic Texts by\r
- Social Sciences and Humanities Scholars\r
-\r
-This presentation explores the ways in which electronic texts are likely\r
-to be used by the non-scientific scholarly community. Many of the\r
-remarks are drawn from a report the speaker coauthored with Jeff\r
-Rothenberg, a computer scientist at The RAND Corporation.\r
-\r
-The speaker assesses 1) current scholarly use of information technology\r
-and 2) the key trends in information technology most relevant to the\r
-research process, in order to predict how social sciences and humanities\r
-scholars are apt to use electronic texts. In introducing the topic,\r
-current use of electronic texts is explored broadly within the context of\r
-scholarly communication. From the perspective of scholarly\r
-communication, the work of humanities and social sciences scholars\r
-involves five processes: 1) identification of sources, 2) communication\r
-with colleagues, 3) interpretation and analysis of data, 4) dissemination\r
-of research findings, and 5) curriculum development and instruction. The\r
-extent to which computation currently permeates aspects of scholarly\r
-communication represents a viable indicator of the prospects for\r
-electronic texts.\r
-\r
-The discussion of current practice is balanced by an analysis of key\r
-trends in the scholarly use of information technology. These include the\r
-trends toward end-user computing and connectivity, which provide a\r
-framework for forecasting the use of electronic texts through this\r
-millennium. The presentation concludes with a summary of the ways in\r
-which the nonscientific scholarly community can be expected to use\r
-electronic texts, and the implications of that use for information\r
-providers.\r
-\r
-Susan VECCIA and Joanne FREEMAN Electronic Archives for the Public: \r
- Use of American Memory in Public and\r
- School Libraries\r
-\r
-This joint discussion focuses on nonscholarly applications of electronic\r
-library materials, specifically addressing use of the Library of Congress\r
-American Memory (AM) program in a small number of public and school\r
-libraries throughout the United States. AM consists of selected Library\r
-of Congress primary archival materials, stored on optical media\r
-(CD-ROM/videodisc), and presented with little or no editing. Many\r
-collections are accompanied by electronic introductions and user's guides\r
-offering background information and historical context. Collections\r
-represent a variety of formats including photographs, graphic arts,\r
-motion pictures, recorded sound, music, broadsides and manuscripts,\r
-books, and pamphlets.\r
-\r
-In 1991, the Library of Congress began a nationwide evaluation of AM in\r
-different types of institutions. Test sites include public libraries,\r
-elementary and secondary school libraries, college and university\r
-libraries, state libraries, and special libraries. Susan VECCIA and\r
-Joanne FREEMAN will discuss their observations on the use of AM by the\r
-nonscholarly community, using evidence gleaned from this ongoing\r
-evaluation effort.\r
-\r
-VECCIA will comment on the overall goals of the evaluation project, and\r
-the types of public and school libraries included in this study. Her\r
-comments on nonscholarly use of AM will focus on the public library as a\r
-cultural and community institution, often bridging the gap between formal\r
-and informal education. FREEMAN will discuss the use of AM in school\r
-libraries. Use by students and teachers has revealed some broad\r
-questions about the use of electronic resources, as well as definite\r
-benefits gained by the "nonscholar." Topics will include the problem of\r
-grasping content and context in an electronic environment, the stumbling\r
-blocks created by "new" technologies, and the unique skills and interests\r
-awakened through use of electronic resources.\r
-\r
-SESSION II\r
-\r
-Elli MYLONAS The Perseus Project: Interactive Sources and\r
- Studies in Classical Greece\r
-\r
-The Perseus Project (5) has just released Perseus 1.0, the first publicly\r
-available version of its hypertextual database of multimedia materials on\r
-classical Greece. Perseus is designed to be used by a wide audience,\r
-comprised of readers at the student and scholar levels. As such, it must\r
-be able to locate information using different strategies, and it must\r
-contain enough detail to serve the different needs of its users. In\r
-addition, it must be delivered so that it is affordable to its target\r
-audience. [These problems and the solutions we chose are described in\r
-Mylonas, "An Interface to Classical Greek Civilization," JASIS 43:2,\r
-March 1992.]\r
-\r
-In order to achieve its objective, the project staff decided to make a\r
-conscious separation between selecting and converting textual, database,\r
-and image data on the one hand, and putting it into a delivery system on\r
-the other. That way, it is possible to create the electronic data\r
-without thinking about the restrictions of the delivery system. We have\r
-made a great effort to choose system-independent formats for our data,\r
-and to put as much thought and work as possible into structuring it so\r
-that the translation from paper to electronic form will enhance the value\r
-of the data. [A discussion of these solutions as of two years ago is in\r
-Elli Mylonas, Gregory Crane, Kenneth Morrell, and D. Neel Smith, "The\r
-Perseus Project: Data in the Electronic Age," in Accessing Antiquity: \r
-The Computerization of Classical Databases, J. Solomon and T. Worthen\r
-(eds.), University of Arizona Press, in press.]\r
-\r
-Much of the work on Perseus is focused on collecting and converting the\r
-data on which the project is based. At the same time, it is necessary to\r
-provide means of access to the information, in order to make it usable,\r
-and them to investigate how it is used. As we learn more about what\r
-students and scholars from different backgrounds do with Perseus, we can\r
-adjust our data collection, and also modify the system to accommodate\r
-them. In creating a delivery system for general use, we have tried to\r
-avoid favoring any one type of use by allowing multiple forms of access\r
-to and navigation through the system.\r
-\r
-The way text is handled exemplifies some of these principles. All text\r
-in Perseus is tagged using SGML, following the guidelines of the Text\r
-Encoding Initiative (TEI). This markup is used to index the text, and\r
-process it so that it can be imported into HyperCard. No SGML markup\r
-remains in the text that reaches the user, because currently it would be\r
-too expensive to create a system that acts on SGML in real time. \r
-However, the regularity provided by SGML is essential for verifying the\r
-content of the texts, and greatly speeds all the processing performed on\r
-them. The fact that the texts exist in SGML ensures that they will be\r
-relatively easy to port to different hardware and software, and so will\r
-outlast the current delivery platform. Finally, the SGML markup\r
-incorporates existing canonical reference systems (chapter, verse, line,\r
-etc.); indexing and navigation are based on these features. This ensures\r
-that the same canonical reference will always resolve to the same point\r
-within a text, and that all versions of our texts, regardless of delivery\r
-platform (even paper printouts) will function the same way.\r
-\r
-In order to provide tools for users, the text is processed by a\r
-morphological analyzer, and the results are stored in a database. \r
-Together with the index, the Greek-English Lexicon, and the index of all\r
-the English words in the definitions of the lexicon, the morphological\r
-analyses comprise a set of linguistic tools that allow users of all\r
-levels to work with the textual information, and to accomplish different\r
-tasks. For example, students who read no Greek may explore a concept as\r
-it appears in Greek texts by using the English-Greek index, and then\r
-looking up works in the texts and translations, or scholars may do\r
-detailed morphological studies of word use by using the morphological\r
-analyses of the texts. Because these tools were not designed for any one\r
-use, the same tools and the same data can be used by both students and\r
-scholars.\r
-\r
-NOTES:\r
- (5) Perseus is based at Harvard University, with collaborators at\r
- several other universities. The project has been funded primarily\r
- by the Annenberg/CPB Project, as well as by Harvard University,\r
- Apple Computer, and others. It is published by Yale University\r
- Press. Perseus runs on Macintosh computers, under the HyperCard\r
- program.\r
-\r
-Eric CALALUCA\r
-\r
-Chadwyck-Healey embarked last year on two distinct yet related full-text\r
-humanities database projects.\r
-\r
-The English Poetry Full-Text Database and the Patrologia Latina Database\r
-represent new approaches to linguistic research resources. The size and\r
-complexity of the projects present problems for electronic publishers,\r
-but surmountable ones if they remain abreast of the latest possibilities\r
-in data capture and retrieval software techniques.\r
-\r
-The issues which required address prior to the commencement of the\r
-projects were legion:\r
-\r
- 1. Editorial selection (or exclusion) of materials in each\r
- database\r
-\r
- 2. Deciding whether or not to incorporate a normative encoding\r
- structure into the databases?\r
- A. If one is selected, should it be SGML?\r
- B. If SGML, then the TEI?\r
- \r
- 3. Deliver as CD-ROM, magnetic tape, or both?\r
-\r
- 4. Can one produce retrieval software advanced enough for the\r
- postdoctoral linguist, yet accessible enough for unattended\r
- general use? Should one try?\r
-\r
- 5. Re fair and liberal networking policies, what are the risks to\r
- an electronic publisher?\r
-\r
- 6. How does the emergence of national and international education\r
- networks affect the use and viability of research projects\r
- requiring high investment? Do the new European Community\r
- directives concerning database protection necessitate two\r
- distinct publishing projects, one for North America and one for\r
- overseas?\r
-\r
-From new notions of "scholarly fair use" to the future of optical media,\r
-virtually every issue related to electronic publishing was aired. The\r
-result is two projects which have been constructed to provide the quality\r
-research resources with the fewest encumbrances to use by teachers and\r
-private scholars.\r
-\r
-Dorothy TWOHIG\r
-\r
-In spring 1988 the editors of the papers of George Washington, John\r
-Adams, Thomas Jefferson, James Madison, and Benjamin Franklin were\r
-approached by classics scholar David Packard on behalf of the Packard\r
-Humanities Foundation with a proposal to produce a CD-ROM edition of the\r
-complete papers of each of the Founding Fathers. This electronic edition\r
-will supplement the published volumes, making the documents widely\r
-available to students and researchers at reasonable cost. We estimate\r
-that our CD-ROM edition of Washington's Papers will be substantially\r
-completed within the next two years and ready for publication. Within\r
-the next ten years or so, similar CD-ROM editions of the Franklin, Adams,\r
-Jefferson, and Madison papers also will be available. At the Library of\r
-Congress's session on technology, I would like to discuss not only the\r
-experience of the Washington Papers in producing the CD-ROM edition, but\r
-the impact technology has had on these major editorial projects. \r
-Already, we are editing our volumes with an eye to the material that will\r
-be readily available in the CD-ROM edition. The completed electronic\r
-edition will provide immense possibilities for the searching of documents\r
-for information in a way never possible before. The kind of technical\r
-innovations that are currently available and on the drawing board will\r
-soon revolutionize historical research and the production of historical\r
-documents. Unfortunately, much of this new technology is not being used\r
-in the planning stages of historical projects, simply because many\r
-historians are aware only in the vaguest way of its existence. At least\r
-two major new historical editing projects are considering microfilm\r
-editions, simply because they are not aware of the possibilities of\r
-electronic alternatives and the advantages of the new technology in terms\r
-of flexibility and research potential compared to microfilm. In fact,\r
-too many of us in history and literature are still at the stage of\r
-struggling with our PCs. There are many historical editorial projects in\r
-progress presently, and an equal number of literary projects. While the\r
-two fields have somewhat different approaches to textual editing, there\r
-are ways in which electronic technology can be of service to both.\r
-\r
-Since few of the editors involved in the Founding Fathers CD-ROM editions\r
-are technical experts in any sense, I hope to point out in my discussion\r
-of our experience how many of these electronic innovations can be used\r
-successfully by scholars who are novices in the world of new technology. \r
-One of the major concerns of the sponsors of the multitude of new\r
-scholarly editions is the limited audience reached by the published\r
-volumes. Most of these editions are being published in small quantities\r
-and the publishers' price for them puts them out of the reach not only of\r
-individual scholars but of most public libraries and all but the largest\r
-educational institutions. However, little attention is being given to\r
-ways in which technology can bypass conventional publication to make\r
-historical and literary documents more widely available.\r
-\r
-What attracted us most to the CD-ROM edition of The Papers of George\r
-Washington was the fact that David Packard's aim was to make a complete\r
-edition of all of the 135,000 documents we have collected available in an\r
-inexpensive format that would be placed in public libraries, small\r
-colleges, and even high schools. This would provide an audience far\r
-beyond our present 1,000-copy, $45 published edition. Since the CD-ROM\r
-edition will carry none of the explanatory annotation that appears in the\r
-published volumes, we also feel that the use of the CD-ROM will lead many\r
-researchers to seek out the published volumes.\r
-\r
-In addition to ignorance of new technical advances, I have found that too\r
-many editors--and historians and literary scholars--are resistant and\r
-even hostile to suggestions that electronic technology may enhance their\r
-work. I intend to discuss some of the arguments traditionalists are\r
-advancing to resist technology, ranging from distrust of the speed with\r
-which it changes (we are already wondering what is out there that is\r
-better than CD-ROM) to suspicion of the technical language used to\r
-describe electronic developments.\r
-\r
-Maria LEBRON\r
-\r
-The Online Journal of Current Clinical Trials, a joint venture of the\r
-American Association for the Advancement of Science (AAAS) and the Online\r
-Computer Library Center, Inc. (OCLC), is the first peer-reviewed journal\r
-to provide full text, tabular material, and line illustrations on line. \r
-This presentation will discuss the genesis and start-up period of the\r
-journal. Topics of discussion will include historical overview,\r
-day-to-day management of the editorial peer review, and manuscript\r
-tagging and publication. A demonstration of the journal and its features\r
-will accompany the presentation.\r
-\r
-Lynne PERSONIUS\r
-\r
-Cornell University Library, Cornell Information Technologies, and Xerox\r
-Corporation, with the support of the Commission on Preservation and\r
-Access, and Sun Microsystems, Inc., have been collaborating in a project\r
-to test a prototype system for recording brittle books as digital images\r
-and producing, on demand, high-quality archival paper replacements. The\r
-project goes beyond that, however, to investigate some of the issues\r
-surrounding scanning, storing, retrieving, and providing access to\r
-digital images in a network environment.\r
-\r
-The Joint Study in Digital Preservation began in January 1990. Xerox\r
-provided the College Library Access and Storage System (CLASS) software,\r
-a prototype 600-dots-per-inch (dpi) scanner, and the hardware necessary\r
-to support network printing on the DocuTech printer housed in Cornell's\r
-Computing and Communications Center (CCC).\r
-\r
-The Cornell staff using the hardware and software became an integral part\r
-of the development and testing process for enhancements to the CLASS\r
-software system. The collaborative nature of this relationship is\r
-resulting in a system that is specifically tailored to the preservation\r
-application.\r
-\r
-A digital library of 1,000 volumes (or approximately 300,000 images) has\r
-been created and is stored on an optical jukebox that resides in CCC. \r
-The library includes a collection of select mathematics monographs that\r
-provides mathematics faculty with an opportunity to use the electronic\r
-library. The remaining volumes were chosen for the library to test the\r
-various capabilities of the scanning system.\r
-\r
-One project objective is to provide users of the Cornell library and the\r
-library staff with the ability to request facsimiles of digitized images\r
-or to retrieve the actual electronic image for browsing. A prototype\r
-viewing workstation has been created by Xerox, with input into the design\r
-by a committee of Cornell librarians and computer professionals. This\r
-will allow us to experiment with patron access to the images that make up\r
-the digital library. The viewing station provides search, retrieval, and\r
-(ultimately) printing functions with enhancements to facilitate\r
-navigation through multiple documents.\r
-\r
-Cornell currently is working to extend access to the digital library to\r
-readers using workstations from their offices. This year is devoted to\r
-the development of a network resident image conversion and delivery\r
-server, and client software that will support readers who use Apple\r
-Macintosh computers, IBM windows platforms, and Sun workstations. \r
-Equipment for this development was provided by Sun Microsystems with\r
-support from the Commission on Preservation and Access.\r
-\r
-During the show-and-tell session of the Workshop on Electronic Texts, a\r
-prototype view station will be demonstrated. In addition, a display of\r
-original library books that have been digitized will be available for\r
-review with associated printed copies for comparison. The fifteen-minute\r
-overview of the project will include a slide presentation that\r
-constitutes a "tour" of the preservation digitizing process.\r
-\r
-The final network-connected version of the viewing station will provide\r
-library users with another mechanism for accessing the digital library,\r
-and will also provide the capability of viewing images directly. This\r
-will not require special software, although a powerful computer with good\r
-graphics will be needed.\r
-\r
-The Joint Study in Digital Preservation has generated a great deal of\r
-interest in the library community. Unfortunately, or perhaps\r
-fortunately, this project serves to raise a vast number of other issues\r
-surrounding the use of digital technology for the preservation and use of\r
-deteriorating library materials, which subsequent projects will need to\r
-examine. Much work remains.\r
-\r
-SESSION III\r
-\r
-Howard BESSER Networking Multimedia Databases\r
-\r
-What do we have to consider in building and distributing databases of\r
-visual materials in a multi-user environment? This presentation examines\r
-a variety of concerns that need to be addressed before a multimedia\r
-database can be set up in a networked environment.\r
-\r
-In the past it has not been feasible to implement databases of visual\r
-materials in shared-user environments because of technological barriers. \r
-Each of the two basic models for multi-user multimedia databases has\r
-posed its own problem. The analog multimedia storage model (represented\r
-by Project Athena's parallel analog and digital networks) has required an\r
-incredibly complex (and expensive) infrastructure. The economies of\r
-scale that make multi-user setups cheaper per user served do not operate\r
-in an environment that requires a computer workstation, videodisc player,\r
-and two display devices for each user.\r
-\r
-The digital multimedia storage model has required vast amounts of storage\r
-space (as much as one gigabyte per thirty still images). In the past the\r
-cost of such a large amount of storage space made this model a\r
-prohibitive choice as well. But plunging storage costs are finally\r
-making this second alternative viable.\r
-\r
-If storage no longer poses such an impediment, what do we need to\r
-consider in building digitally stored multi-user databases of visual\r
-materials? This presentation will examine the networking and\r
-telecommunication constraints that must be overcome before such databases\r
-can become commonplace and useful to a large number of people.\r
-\r
-The key problem is the vast size of multimedia documents, and how this\r
-affects not only storage but telecommunications transmission time. \r
-Anything slower than T-1 speed is impractical for files of 1 megabyte or\r
-larger (which is likely to be small for a multimedia document). For\r
-instance, even on a 56 Kb line it would take three minutes to transfer a\r
-1-megabyte file. And these figures assume ideal circumstances, and do\r
-not take into consideration other users contending for network bandwidth,\r
-disk access time, or the time needed for remote display. Current common\r
-telephone transmission rates would be completely impractical; few users\r
-would be willing to wait the hour necessary to transmit a single image at\r
-2400 baud.\r
-\r
-This necessitates compression, which itself raises a number of other\r
-issues. In order to decrease file sizes significantly, we must employ\r
-lossy compression algorithms. But how much quality can we afford to\r
-lose? To date there has been only one significant study done of\r
-image-quality needs for a particular user group, and this study did not\r
-look at loss resulting from compression. Only after identifying\r
-image-quality needs can we begin to address storage and network bandwidth\r
-needs.\r
-\r
-Experience with X-Windows-based applications (such as Imagequery, the\r
-University of California at Berkeley image database) demonstrates the\r
-utility of a client-server topology, but also points to the limitation of\r
-current software for a distributed environment. For example,\r
-applications like Imagequery can incorporate compression, but current X\r
-implementations do not permit decompression at the end user's\r
-workstation. Such decompression at the host computer alleviates storage\r
-capacity problems while doing nothing to address problems of\r
-telecommunications bandwidth.\r
-\r
-We need to examine the effects on network through-put of moving\r
-multimedia documents around on a network. We need to examine various\r
-topologies that will help us avoid bottlenecks around servers and\r
-gateways. Experience with applications such as these raise still broader\r
-questions. How closely is the multimedia document tied to the software\r
-for viewing it? Can it be accessed and viewed from other applications? \r
-Experience with the MARC format (and more recently with the Z39.50\r
-protocols) shows how useful it can be to store documents in a form in\r
-which they can be accessed by a variety of application software.\r
-\r
-Finally, from an intellectual-access standpoint, we need to address the\r
-issue of providing access to these multimedia documents in\r
-interdisciplinary environments. We need to examine terminology and\r
-indexing strategies that will allow us to provide access to this material\r
-in a cross-disciplinary way.\r
-\r
-Ronald LARSEN Directions in High-Performance Networking for\r
- Libraries\r
-\r
-The pace at which computing technology has advanced over the past forty\r
-years shows no sign of abating. Roughly speaking, each five-year period\r
-has yielded an order-of-magnitude improvement in price and performance of\r
-computing equipment. No fundamental hurdles are likely to prevent this\r
-pace from continuing for at least the next decade. It is only in the\r
-past five years, though, that computing has become ubiquitous in\r
-libraries, affecting all staff and patrons, directly or indirectly.\r
-\r
-During these same five years, communications rates on the Internet, the\r
-principal academic computing network, have grown from 56 kbps to 1.5\r
-Mbps, and the NSFNet backbone is now running 45 Mbps. Over the next five\r
-years, communication rates on the backbone are expected to exceed 1 Gbps. \r
-Growth in both the population of network users and the volume of network\r
-traffic has continued to grow geometrically, at rates approaching 15\r
-percent per month. This flood of capacity and use, likened by some to\r
-"drinking from a firehose," creates immense opportunities and challenges\r
-for libraries. Libraries must anticipate the future implications of this\r
-technology, participate in its development, and deploy it to ensure\r
-access to the world's information resources.\r
-\r
-The infrastructure for the information age is being put in place. \r
-Libraries face strategic decisions about their role in the development,\r
-deployment, and use of this infrastructure. The emerging infrastructure\r
-is much more than computers and communication lines. It is more than the\r
-ability to compute at a remote site, send electronic mail to a peer\r
-across the country, or move a file from one library to another. The next\r
-five years will witness substantial development of the information\r
-infrastructure of the network.\r
-\r
-In order to provide appropriate leadership, library professionals must\r
-have a fundamental understanding of and appreciation for computer\r
-networking, from local area networks to the National Research and\r
-Education Network (NREN). This presentation addresses these\r
-fundamentals, and how they relate to libraries today and in the near\r
-future.\r
-\r
-Edwin BROWNRIGG Electronic Library Visions and Realities\r
-\r
-The electronic library has been a vision desired by many--and rejected by\r
-some--since Vannevar Bush coined the term memex to describe an automated,\r
-intelligent, personal information system. Variations on this vision have\r
-included Ted Nelson's Xanadau, Alan Kay's Dynabook, and Lancaster's\r
-"paperless library," with the most recent incarnation being the\r
-"Knowledge Navigator" described by John Scully of Apple. But the reality\r
-of library service has been less visionary and the leap to the electronic\r
-library has eluded universities, publishers, and information technology\r
-files.\r
-\r
-The Memex Research Institute (MemRI), an independent, nonprofit research\r
-and development organization, has created an Electronic Library Program\r
-of shared research and development in order to make the collective vision\r
-more concrete. The program is working toward the creation of large,\r
-indexed publicly available electronic image collections of published\r
-documents in academic, special, and public libraries. This strategic\r
-plan is the result of the first stage of the program, which has been an\r
-investigation of the information technologies available to support such\r
-an effort, the economic parameters of electronic service compared to\r
-traditional library operations, and the business and political factors\r
-affecting the shift from print distribution to electronic networked\r
-access.\r
-\r
-The strategic plan envisions a combination of publicly searchable access\r
-databases, image (and text) document collections stored on network "file\r
-servers," local and remote network access, and an intellectual property\r
-management-control system. This combination of technology and\r
-information content is defined in this plan as an E-library or E-library\r
-collection. Some participating sponsors are already developing projects\r
-based on MemRI's recommended directions.\r
-\r
-The E-library strategy projected in this plan is a visionary one that can\r
-enable major changes and improvements in academic, public, and special\r
-library service. This vision is, though, one that can be realized with\r
-today's technology. At the same time, it will challenge the political\r
-and social structure within which libraries operate: in academic\r
-libraries, the traditional emphasis on local collections, extending to\r
-accreditation issues; in public libraries, the potential of electronic\r
-branch and central libraries fully available to the public; and for\r
-special libraries, new opportunities for shared collections and networks.\r
-\r
-The environment in which this strategic plan has been developed is, at\r
-the moment, dominated by a sense of library limits. The continued\r
-expansion and rapid growth of local academic library collections is now\r
-clearly at an end. Corporate libraries, and even law libraries, are\r
-faced with operating within a difficult economic climate, as well as with\r
-very active competition from commercial information sources. For\r
-example, public libraries may be seen as a desirable but not critical\r
-municipal service in a time when the budgets of safety and health\r
-agencies are being cut back.\r
-\r
-Further, libraries in general have a very high labor-to-cost ratio in\r
-their budgets, and labor costs are still increasing, notwithstanding\r
-automation investments. It is difficult for libraries to obtain capital,\r
-startup, or seed funding for innovative activities, and those\r
-technology-intensive initiatives that offer the potential of decreased\r
-labor costs can provoke the opposition of library staff.\r
-\r
-However, libraries have achieved some considerable successes in the past\r
-two decades by improving both their service and their credibility within\r
-their organizations--and these positive changes have been accomplished\r
-mostly with judicious use of information technologies. The advances in\r
-computing and information technology have been well-chronicled: the\r
-continuing precipitous drop in computing costs, the growth of the\r
-Internet and private networks, and the explosive increase in publicly\r
-available information databases.\r
-\r
-For example, OCLC has become one of the largest computer network\r
-organizations in the world by creating a cooperative cataloging network\r
-of more than 6,000 libraries worldwide. On-line public access catalogs\r
-now serve millions of users on more than 50,000 dedicated terminals in\r
-the United States alone. The University of California MELVYL on-line\r
-catalog system has now expanded into an index database reference service\r
-and supports more than six million searches a year. And, libraries have\r
-become the largest group of customers of CD-ROM publishing technology;\r
-more than 30,000 optical media publications such as those offered by\r
-InfoTrac and Silver Platter are subscribed to by U.S. libraries.\r
-\r
-This march of technology continues and in the next decade will result in\r
-further innovations that are extremely difficult to predict. What is\r
-clear is that libraries can now go beyond automation of their order files\r
-and catalogs to automation of their collections themselves--and it is\r
-possible to circumvent the fiscal limitations that appear to obtain\r
-today.\r
-\r
-This Electronic Library Strategic Plan recommends a paradigm shift in\r
-library service, and demonstrates the steps necessary to provide improved\r
-library services with limited capacities and operating investments.\r
-\r
-SESSION IV-A\r
-\r
-Anne KENNEY\r
-\r
-The Cornell/Xerox Joint Study in Digital Preservation resulted in the\r
-recording of 1,000 brittle books as 600-dpi digital images and the\r
-production, on demand, of high-quality and archivally sound paper\r
-replacements. The project, which was supported by the Commission on\r
-Preservation and Access, also investigated some of the issues surrounding\r
-scanning, storing, retrieving, and providing access to digital images in\r
-a network environment.\r
-\r
-Anne Kenney will focus on some of the issues surrounding direct scanning\r
-as identified in the Cornell Xerox Project. Among those to be discussed\r
-are: image versus text capture; indexing and access; image-capture\r
-capabilities; a comparison to photocopy and microfilm; production and\r
-cost analysis; storage formats, protocols, and standards; and the use of\r
-this scanning technology for preservation purposes.\r
-\r
-The 600-dpi digital images produced in the Cornell Xerox Project proved\r
-highly acceptable for creating paper replacements of deteriorating\r
-originals. The 1,000 scanned volumes provided an array of image-capture\r
-challenges that are common to nineteenth-century printing techniques and\r
-embrittled material, and that defy the use of text-conversion processes. \r
-These challenges include diminished contrast between text and background,\r
-fragile and deteriorated pages, uneven printing, elaborate type faces,\r
-faint and bold text adjacency, handwritten text and annotations, nonRoman\r
-languages, and a proliferation of illustrated material embedded in text. \r
-The latter category included high-frequency and low-frequency halftones,\r
-continuous tone photographs, intricate mathematical drawings, maps,\r
-etchings, reverse-polarity drawings, and engravings.\r
-\r
-The Xerox prototype scanning system provided a number of important\r
-features for capturing this diverse material. Technicians used multiple\r
-threshold settings, filters, line art and halftone definitions,\r
-autosegmentation, windowing, and software-editing programs to optimize\r
-image capture. At the same time, this project focused on production. \r
-The goal was to make scanning as affordable and acceptable as\r
-photocopying and microfilming for preservation reformatting. A\r
-time-and-cost study conducted during the last three months of this\r
-project confirmed the economic viability of digital scanning, and these\r
-findings will be discussed here.\r
-\r
-From the outset, the Cornell Xerox Project was predicated on the use of\r
-nonproprietary standards and the use of common protocols when standards\r
-did not exist. Digital files were created as TIFF images which were\r
-compressed prior to storage using Group 4 CCITT compression. The Xerox\r
-software is MS DOS based and utilizes off-the shelf programs such as\r
-Microsoft Windows and Wang Image Wizard. The digital library is designed\r
-to be hardware-independent and to provide interchangeability with other\r
-institutions through network connections. Access to the digital files\r
-themselves is two-tiered: Bibliographic records for the computer files\r
-are created in RLIN and Cornell's local system and access into the actual\r
-digital images comprising a book is provided through a document control\r
-structure and a networked image file-server, both of which will be\r
-described.\r
-\r
-The presentation will conclude with a discussion of some of the issues\r
-surrounding the use of this technology as a preservation tool (storage,\r
-refreshing, backup).\r
-\r
-Pamela ANDRE and Judith ZIDAR\r
-\r
-The National Agricultural Library (NAL) has had extensive experience with\r
-raster scanning of printed materials. Since 1987, the Library has\r
-participated in the National Agricultural Text Digitizing Project (NATDP)\r
-a cooperative effort between NAL and forty-five land grant university\r
-libraries. An overview of the project will be presented, giving its\r
-history and NAL's strategy for the future.\r
-\r
-An in-depth discussion of NATDP will follow, including a description of\r
-the scanning process, from the gathering of the printed materials to the\r
-archiving of the electronic pages. The type of equipment required for a\r
-stand-alone scanning workstation and the importance of file management\r
-software will be discussed. Issues concerning the images themselves will\r
-be addressed briefly, such as image format; black and white versus color;\r
-gray scale versus dithering; and resolution.\r
-\r
-Also described will be a study currently in progress by NAL to evaluate\r
-the usefulness of converting microfilm to electronic images in order to\r
-improve access. With the cooperation of Tuskegee University, NAL has\r
-selected three reels of microfilm from a collection of sixty-seven reels\r
-containing the papers, letters, and drawings of George Washington Carver. \r
-The three reels were converted into 3,500 electronic images using a\r
-specialized microfilm scanner. The selection, filming, and indexing of\r
-this material will be discussed.\r
-\r
-Donald WATERS\r
-\r
-Project Open Book, the Yale University Library's effort to convert 10,\r
-000 books from microfilm to digital imagery, is currently in an advanced\r
-state of planning and organization. The Yale Library has selected a\r
-major vendor to serve as a partner in the project and as systems\r
-integrator. In its proposal, the successful vendor helped isolate areas\r
-of risk and uncertainty as well as key issues to be addressed during the\r
-life of the project. The Yale Library is now poised to decide what\r
-material it will convert to digital image form and to seek funding,\r
-initially for the first phase and then for the entire project.\r
-\r
-The proposal that Yale accepted for the implementation of Project Open\r
-Book will provide at the end of three phases a conversion subsystem,\r
-browsing stations distributed on the campus network within the Yale\r
-Library, a subsystem for storing 10,000 books at 200 and 600 dots per\r
-inch, and network access to the image printers. Pricing for the system\r
-implementation assumes the existence of Yale's campus ethernet network\r
-and its high-speed image printers, and includes other requisite hardware\r
-and software, as well as system integration services. Proposed operating\r
-costs include hardware and software maintenance, but do not include\r
-estimates for the facilities management of the storage devices and image\r
-servers.\r
-\r
-Yale selected its vendor partner in a formal process, partly funded by\r
-the Commission for Preservation and Access. Following a request for\r
-proposal, the Yale Library selected two vendors as finalists to work with\r
-Yale staff to generate a detailed analysis of requirements for Project\r
-Open Book. Each vendor used the results of the requirements analysis to\r
-generate and submit a formal proposal for the entire project. This\r
-competitive process not only enabled the Yale Library to select its\r
-primary vendor partner but also revealed much about the state of the\r
-imaging industry, about the varying, corporate commitments to the markets\r
-for imaging technology, and about the varying organizational dynamics\r
-through which major companies are responding to and seeking to develop\r
-these markets.\r
-\r
-Project Open Book is focused specifically on the conversion of images\r
-from microfilm to digital form. The technology for scanning microfilm is\r
-readily available but is changing rapidly. In its project requirements,\r
-the Yale Library emphasized features of the technology that affect the\r
-technical quality of digital image production and the costs of creating\r
-and storing the image library: What levels of digital resolution can be\r
-achieved by scanning microfilm? How does variation in the quality of\r
-microfilm, particularly in film produced to preservation standards,\r
-affect the quality of the digital images? What technologies can an\r
-operator effectively and economically apply when scanning film to\r
-separate two-up images and to control for and correct image\r
-imperfections? How can quality control best be integrated into\r
-digitizing work flow that includes document indexing and storage?\r
-\r
-The actual and expected uses of digital images--storage, browsing,\r
-printing, and OCR--help determine the standards for measuring their\r
-quality. Browsing is especially important, but the facilities available\r
-for readers to browse image documents is perhaps the weakest aspect of\r
-imaging technology and most in need of development. As it defined its\r
-requirements, the Yale Library concentrated on some fundamental aspects\r
-of usability for image documents: Does the system have sufficient\r
-flexibility to handle the full range of document types, including\r
-monographs, multi-part and multivolume sets, and serials, as well as\r
-manuscript collections? What conventions are necessary to identify a\r
-document uniquely for storage and retrieval? Where is the database of\r
-record for storing bibliographic information about the image document? \r
-How are basic internal structures of documents, such as pagination, made\r
-accessible to the reader? How are the image documents physically\r
-presented on the screen to the reader?\r
-\r
-The Yale Library designed Project Open Book on the assumption that\r
-microfilm is more than adequate as a medium for preserving the content of\r
-deteriorated library materials. As planning in the project has advanced,\r
-it is increasingly clear that the challenge of digital image technology\r
-and the key to the success of efforts like Project Open Book is to\r
-provide a means of both preserving and improving access to those\r
-deteriorated materials.\r
-\r
-SESSION IV-B\r
-\r
-George THOMA\r
-\r
-In the use of electronic imaging for document preservation, there are\r
-several issues to consider, such as: ensuring adequate image quality,\r
-maintaining substantial conversion rates (through-put), providing unique\r
-identification for automated access and retrieval, and accommodating\r
-bound volumes and fragile material.\r
-\r
-To maintain high image quality, image processing functions are required\r
-to correct the deficiencies in the scanned image. Some commercially\r
-available systems include these functions, while some do not. The\r
-scanned raw image must be processed to correct contrast deficiencies--\r
-both poor overall contrast resulting from light print and/or dark\r
-background, and variable contrast resulting from stains and\r
-bleed-through. Furthermore, the scan density must be adequate to allow\r
-legibility of print and sufficient fidelity in the pseudo-halftoned gray\r
-material. Borders or page-edge effects must be removed for both\r
-compactibility and aesthetics. Page skew must be corrected for aesthetic\r
-reasons and to enable accurate character recognition if desired. \r
-Compound images consisting of both two-toned text and gray-scale\r
-illustrations must be processed appropriately to retain the quality of\r
-each.\r
-\r
-SESSION IV-C\r
-\r
-Jean BARONAS\r
-\r
-Standards publications being developed by scientists, engineers, and\r
-business managers in Association for Information and Image Management\r
-(AIIM) standards committees can be applied to electronic image management\r
-(EIM) processes including: document (image) transfer, retrieval and\r
-evaluation; optical disk and document scanning; and document design and\r
-conversion. When combined with EIM system planning and operations,\r
-standards can assist in generating image databases that are\r
-interchangeable among a variety of systems. The applications of\r
-different approaches for image-tagging, indexing, compression, and\r
-transfer often cause uncertainty concerning EIM system compatibility,\r
-calibration, performance, and upward compatibility, until standard\r
-implementation parameters are established. The AIIM standards that are\r
-being developed for these applications can be used to decrease the\r
-uncertainty, successfully integrate imaging processes, and promote "open\r
-systems." AIIM is an accredited American National Standards Institute\r
-(ANSI) standards developer with more than twenty committees comprised of\r
-300 volunteers representing users, vendors, and manufacturers. The\r
-standards publications that are developed in these committees have\r
-national acceptance and provide the basis for international harmonization\r
-in the development of new International Organization for Standardization\r
-(ISO) standards.\r
-\r
-This presentation describes the development of AIIM's EIM standards and a\r
-new effort at AIIM, a database on standards projects in a wide framework\r
-of imaging industries including capture, recording, processing,\r
-duplication, distribution, display, evaluation, and preservation. The\r
-AIIM Imagery Database will cover imaging standards being developed by\r
-many organizations in many different countries. It will contain\r
-standards publications' dates, origins, related national and\r
-international projects, status, key words, and abstracts. The ANSI Image\r
-Technology Standards Board requested that such a database be established,\r
-as did the ISO/International Electrotechnical Commission Joint Task Force\r
-on Imagery. AIIM will take on the leadership role for the database and\r
-coordinate its development with several standards developers.\r
-\r
-Patricia BATTIN\r
-\r
- Characteristics of standards for digital imagery:\r
-\r
- * Nature of digital technology implies continuing volatility.\r
-\r
- * Precipitous standard-setting not possible and probably not\r
- desirable.\r
-\r
- * Standards are a complex issue involving the medium, the\r
- hardware, the software, and the technical capacity for\r
- reproductive fidelity and clarity.\r
-\r
- * The prognosis for reliable archival standards (as defined by\r
- librarians) in the foreseeable future is poor.\r
-\r
- Significant potential and attractiveness of digital technology as a\r
- preservation medium and access mechanism.\r
-\r
- Productive use of digital imagery for preservation requires a\r
- reconceptualizing of preservation principles in a volatile,\r
- standardless world.\r
-\r
- Concept of managing continuing access in the digital environment\r
- rather than focusing on the permanence of the medium and long-term\r
- archival standards developed for the analog world.\r
-\r
- Transition period: How long and what to do?\r
-\r
- * Redefine "archival."\r
-\r
- * Remove the burden of "archival copy" from paper artifacts.\r
-\r
- * Use digital technology for storage, develop management\r
- strategies for refreshing medium, hardware and software.\r
-\r
- * Create acid-free paper copies for transition period backup\r
- until we develop reliable procedures for ensuring continuing\r
- access to digital files.\r
-\r
-SESSION IV-D\r
-\r
-Stuart WEIBEL The Role of SGML Markup in the CORE Project (6)\r
-\r
-The emergence of high-speed telecommunications networks as a basic\r
-feature of the scholarly workplace is driving the demand for electronic\r
-document delivery. Three distinct categories of electronic\r
-publishing/republishing are necessary to support access demands in this\r
-emerging environment:\r
-\r
- 1.) Conversion of paper or microfilm archives to electronic format\r
- 2.) Conversion of electronic files to formats tailored to\r
- electronic retrieval and display\r
- 3.) Primary electronic publishing (materials for which the\r
- electronic version is the primary format)\r
-\r
-OCLC has experimental or product development activities in each of these\r
-areas. Among the challenges that lie ahead is the integration of these\r
-three types of information stores in coherent distributed systems.\r
-\r
-The CORE (Chemistry Online Retrieval Experiment) Project is a model for\r
-the conversion of large text and graphics collections for which\r
-electronic typesetting files are available (category 2). The American\r
-Chemical Society has made available computer typography files dating from\r
-1980 for its twenty journals. This collection of some 250 journal-years\r
-is being converted to an electronic format that will be accessible\r
-through several end-user applications.\r
-\r
-The use of Standard Generalized Markup Language (SGML) offers the means\r
-to capture the structural richness of the original articles in a way that\r
-will support a variety of retrieval, navigation, and display options\r
-necessary to navigate effectively in very large text databases.\r
-\r
-An SGML document consists of text that is marked up with descriptive tags\r
-that specify the function of a given element within the document. As a\r
-formal language construct, an SGML document can be parsed against a\r
-document-type definition (DTD) that unambiguously defines what elements\r
-are allowed and where in the document they can (or must) occur. This\r
-formalized map of article structure allows the user interface design to\r
-be uncoupled from the underlying database system, an important step\r
-toward interoperability. Demonstration of this separability is a part of\r
-the CORE project, wherein user interface designs born of very different\r
-philosophies will access the same database.\r
-\r
-NOTES:\r
- (6) The CORE project is a collaboration among Cornell University's\r
- Mann Library, Bell Communications Research (Bellcore), the American\r
- Chemical Society (ACS), the Chemical Abstracts Service (CAS), and\r
- OCLC.\r
-\r
-Michael LESK The CORE Electronic Chemistry Library\r
-\r
-A major on-line file of chemical journal literature complete with\r
-graphics is being developed to test the usability of fully electronic\r
-access to documents, as a joint project of Cornell University, the\r
-American Chemical Society, the Chemical Abstracts Service, OCLC, and\r
-Bellcore (with additional support from Sun Microsystems, Springer-Verlag,\r
-DigitaI Equipment Corporation, Sony Corporation of America, and Apple\r
-Computers). Our file contains the American Chemical Society's on-line\r
-journals, supplemented with the graphics from the paper publication. The\r
-indexing of the articles from Chemical Abstracts Documents is available\r
-in both image and text format, and several different interfaces can be\r
-used. Our goals are (1) to assess the effectiveness and acceptability of\r
-electronic access to primary journals as compared with paper, and (2) to\r
-identify the most desirable functions of the user interface to an\r
-electronic system of journals, including in particular a comparison of\r
-page-image display with ASCII display interfaces. Early experiments with\r
-chemistry students on a variety of tasks suggest that searching tasks are\r
-completed much faster with any electronic system than with paper, but\r
-that for reading all versions of the articles are roughly equivalent.\r
-\r
-Pamela ANDRE and Judith ZIDAR\r
-\r
-Text conversion is far more expensive and time-consuming than image\r
-capture alone. NAL's experience with optical character recognition (OCR)\r
-will be related and compared with the experience of having text rekeyed. \r
-What factors affect OCR accuracy? How accurate does full text have to be\r
-in order to be useful? How do different users react to imperfect text? \r
-These are questions that will be explored. For many, a service bureau\r
-may be a better solution than performing the work inhouse; this will also\r
-be discussed.\r
-\r
-SESSION VI\r
-\r
-Marybeth PETERS\r
-\r
-Copyright law protects creative works. Protection granted by the law to\r
-authors and disseminators of works includes the right to do or authorize\r
-the following: reproduce the work, prepare derivative works, distribute\r
-the work to the public, and publicly perform or display the work. In\r
-addition, copyright owners of sound recordings and computer programs have\r
-the right to control rental of their works. These rights are not\r
-unlimited; there are a number of exceptions and limitations.\r
-\r
-An electronic environment places strains on the copyright system. \r
-Copyright owners want to control uses of their work and be paid for any\r
-use; the public wants quick and easy access at little or no cost. The\r
-marketplace is working in this area. Contracts, guidelines on electronic\r
-use, and collective licensing are in use and being refined.\r
-\r
-Issues concerning the ability to change works without detection are more\r
-difficult to deal with. Questions concerning the integrity of the work\r
-and the status of the changed version under the copyright law are to be\r
-addressed. These are public policy issues which require informed\r
-dialogue.\r
-\r
-\r
- *** *** *** ****** *** *** ***\r
-\r
-\r
- Appendix III: DIRECTORY OF PARTICIPANTS\r
- \r
-\r
-PRESENTERS:\r
-\r
- Pamela Q.J. Andre\r
- Associate Director, Automation\r
- National Agricultural Library\r
- 10301 Baltimore Boulevard\r
- Beltsville, MD 20705-2351\r
- Phone: (301) 504-6813\r
- Fax: (301) 504-7473\r
- E-mail: INTERNET: PANDRE@ASRR.ARSUSDA.GOV\r
-\r
- Jean Baronas, Senior Manager\r
- Department of Standards and Technology\r
- Association for Information and Image Management (AIIM)\r
- 1100 Wayne Avenue, Suite 1100\r
- Silver Spring, MD 20910\r
- Phone: (301) 587-8202\r
- Fax: (301) 587-2711\r
- \r
- Patricia Battin, President\r
- The Commission on Preservation and Access\r
- 1400 16th Street, N.W.\r
- Suite 740\r
- Washington, DC 20036-2217\r
- Phone: (202) 939-3400\r
- Fax: (202) 939-3407\r
- E-mail: CPA@GWUVM.BITNET\r
-\r
- Howard Besser\r
- Centre Canadien d'Architecture\r
- (Canadian Center for Architecture)\r
- 1920, rue Baile\r
- Montreal, Quebec H3H 2S6\r
- CANADA\r
- Phone: (514) 939-7001\r
- Fax: (514) 939-7020\r
- E-mail: howard@lis.pitt.edu\r
-\r
- Edwin B. Brownrigg, Executive Director\r
- Memex Research Institute\r
- 422 Bonita Avenue\r
- Roseville, CA 95678\r
- Phone: (916) 784-2298\r
- Fax: (916) 786-7559\r
- E-mail: BITNET: MEMEX@CALSTATE.2\r
-\r
- Eric M. Calaluca, Vice President\r
- Chadwyck-Healey, Inc.\r
- 1101 King Street\r
- Alexandria, VA 223l4\r
- Phone: (800) 752-05l5\r
- Fax: (703) 683-7589\r
-\r
- James Daly\r
- 4015 Deepwood Road\r
- Baltimore, MD 21218-1404\r
- Phone: (410) 235-0763\r
-\r
- Ricky Erway, Associate Coordinator\r
- American Memory\r
- Library of Congress\r
- Phone: (202) 707-6233\r
- Fax: (202) 707-3764\r
-\r
- Carl Fleischhauer, Coordinator\r
- American Memory\r
- Library of Congress\r
- Phone: (202) 707-6233\r
- Fax: (202) 707-3764\r
-\r
- Joanne Freeman\r
- 2000 Jefferson Park Avenue, No. 7\r
- Charlottesville, VA 22903\r
- \r
- Prosser Gifford\r
- Director for Scholarly Programs\r
- Library of Congress\r
- Phone: (202) 707-1517\r
- Fax: (202) 707-9898\r
- E-mail: pgif@seq1.loc.gov\r
-\r
- Jacqueline Hess, Director\r
- National Demonstration Laboratory\r
- for Interactive Information Technologies\r
- Library of Congress\r
- Phone: (202) 707-4157\r
- Fax: (202) 707-2829\r
- \r
- Susan Hockey, Director\r
- Center for Electronic Texts in the Humanities (CETH)\r
- Alexander Library\r
- Rutgers University\r
- 169 College Avenue\r
- New Brunswick, NJ 08903\r
- Phone: (908) 932-1384\r
- Fax: (908) 932-1386\r
- E-mail: hockey@zodiac.rutgers.edu\r
-\r
- William L. Hooton, Vice President\r
- Business & Technical Development\r
- Imaging & Information Systems Group\r
- I-NET\r
- 6430 Rockledge Drive, Suite 400\r
- Bethesda, MD 208l7\r
- Phone: (301) 564-6750\r
- Fax: (513) 564-6867\r
-\r
- Anne R. Kenney, Associate Director\r
- Department of Preservation and Conservation\r
- 701 Olin Library\r
- Cornell University\r
- Ithaca, NY 14853\r
- Phone: (607) 255-6875\r
- Fax: (607) 255-9346\r
- E-mail: LYDY@CORNELLA.BITNET\r
-\r
- Ronald L. Larsen\r
- Associate Director for Information Technology\r
- University of Maryland at College Park\r
- Room B0224, McKeldin Library\r
- College Park, MD 20742-7011\r
- Phone: (301) 405-9194\r
- Fax: (301) 314-9865\r
- E-mail: rlarsen@libr.umd.edu\r
-\r
- Maria L. Lebron, Managing Editor\r
- The Online Journal of Current Clinical Trials\r
- l333 H Street, N.W.\r
- Washington, DC 20005\r
- Phone: (202) 326-6735\r
- Fax: (202) 842-2868\r
- E-mail: PUBSAAAS@GWUVM.BITNET\r
-\r
- Michael Lesk, Executive Director\r
- Computer Science Research\r
- Bell Communications Research, Inc.\r
- Rm 2A-385\r
- 445 South Street\r
- Morristown, NJ 07960-l9l0 \r
- Phone: (201) 829-4070\r
- Fax: (201) 829-5981\r
- E-mail: lesk@bellcore.com (Internet) or bellcore!lesk (uucp)\r
-\r
- Clifford A. Lynch\r
- Director, Library Automation\r
- University of California,\r
- Office of the President\r
- 300 Lakeside Drive, 8th Floor\r
- Oakland, CA 94612-3350\r
- Phone: (510) 987-0522\r
- Fax: (510) 839-3573\r
- E-mail: calur@uccmvsa\r
-\r
- Avra Michelson\r
- National Archives and Records Administration\r
- NSZ Rm. 14N\r
- 7th & Pennsylvania, N.W.\r
- Washington, D.C. 20408\r
- Phone: (202) 501-5544\r
- Fax: (202) 501-5533\r
- E-mail: tmi@cu.nih.gov\r
- \r
- Elli Mylonas, Managing Editor\r
- Perseus Project\r
- Department of the Classics\r
- Harvard University\r
- 319 Boylston Hall\r
- Cambridge, MA 02138\r
- Phone: (617) 495-9025, (617) 495-0456 (direct)\r
- Fax: (617) 496-8886\r
- E-mail: Elli@IKAROS.Harvard.EDU or elli@wjh12.harvard.edu\r
-\r
- David Woodley Packard\r
- Packard Humanities Institute\r
- 300 Second Street, Suite 201\r
- Los Altos, CA 94002\r
- Phone: (415) 948-0150 (PHI)\r
- Fax: (415) 948-5793\r
-\r
- Lynne K. Personius, Assistant Director\r
- Cornell Information Technologies for\r
- Scholarly Information Sources\r
- 502 Olin Library\r
- Cornell University\r
- Ithaca, NY 14853\r
- Phone: (607) 255-3393\r
- Fax: (607) 255-9346\r
- E-mail: JRN@CORNELLC.BITNET\r
-\r
- Marybeth Peters\r
- Policy Planning Adviser to the\r
- Register of Copyrights\r
- Library of Congress\r
- Office LM 403\r
- Phone: (202) 707-8350\r
- Fax: (202) 707-8366\r
-\r
- C. Michael Sperberg-McQueen\r
- Editor, Text Encoding Initiative\r
- Computer Center (M/C 135)\r
- University of Illinois at Chicago\r
- Box 6998\r
- Chicago, IL 60680\r
- Phone: (312) 413-0317\r
- Fax: (312) 996-6834\r
- E-mail: u35395@uicvm..cc.uic.edu or u35395@uicvm.bitnet\r
-\r
- George R. Thoma, Chief\r
- Communications Engineering Branch\r
- National Library of Medicine\r
- 8600 Rockville Pike\r
- Bethesda, MD 20894\r
- Phone: (301) 496-4496\r
- Fax: (301) 402-0341\r
- E-mail: thoma@lhc.nlm.nih.gov\r
-\r
- Dorothy Twohig, Editor\r
- The Papers of George Washington\r
- 504 Alderman Library\r
- University of Virginia\r
- Charlottesville, VA 22903-2498\r
- Phone: (804) 924-0523\r
- Fax: (804) 924-4337\r
-\r
- Susan H. Veccia, Team leader\r
- American Memory, User Evaluation\r
- Library of Congress\r
- American Memory Evaluation Project\r
- Phone: (202) 707-9104\r
- Fax: (202) 707-3764\r
- E-mail: svec@seq1.loc.gov\r
-\r
- Donald J. Waters, Head\r
- Systems Office\r
- Yale University Library\r
- New Haven, CT 06520\r
- Phone: (203) 432-4889\r
- Fax: (203) 432-7231\r
- E-mail: DWATERS@YALEVM.BITNET or DWATERS@YALEVM.YCC.YALE.EDU\r
-\r
- Stuart Weibel, Senior Research Scientist\r
- OCLC\r
- 6565 Frantz Road\r
- Dublin, OH 43017\r
- Phone: (614) 764-608l\r
- Fax: (614) 764-2344\r
- E-mail: INTERNET: Stu@rsch.oclc.org\r
-\r
- Robert G. Zich\r
- Special Assistant to the Associate Librarian\r
- for Special Projects\r
- Library of Congress\r
- Phone: (202) 707-6233\r
- Fax: (202) 707-3764\r
- E-mail: rzic@seq1.loc.gov\r
-\r
- Judith A. Zidar, Coordinator\r
- National Agricultural Text Digitizing Program\r
- Information Systems Division\r
- National Agricultural Library\r
- 10301 Baltimore Boulevard\r
- Beltsville, MD 20705-2351\r
- Phone: (301) 504-6813 or 504-5853\r
- Fax: (301) 504-7473\r
- E-mail: INTERNET: JZIDAR@ASRR.ARSUSDA.GOV\r
-\r
-\r
-OBSERVERS:\r
-\r
- Helen Aguera, Program Officer\r
- Division of Research\r
- Room 318\r
- National Endowment for the Humanities\r
- 1100 Pennsylvania Avenue, N.W.\r
- Washington, D.C. 20506\r
- Phone: (202) 786-0358\r
- Fax: (202) 786-0243\r
-\r
- M. Ellyn Blanton, Deputy Director\r
- National Demonstration Laboratory\r
- for Interactive Information Technologies\r
- Library of Congress\r
- Phone: (202) 707-4157\r
- Fax: (202) 707-2829\r
-\r
- Charles M. Dollar\r
- National Archives and Records Administration\r
- NSZ Rm. 14N\r
- 7th & Pennsylvania, N.W.\r
- Washington, DC 20408\r
- Phone: (202) 501-5532\r
- Fax: (202) 501-5512\r
-\r
- Jeffrey Field, Deputy to the Director\r
- Division of Preservation and Access\r
- Room 802\r
- National Endowment for the Humanities\r
- 1100 Pennsylvania Avenue, N.W.\r
- Washington, DC 20506\r
- Phone: (202) 786-0570\r
- Fax: (202) 786-0243\r
-\r
- Lorrin Garson\r
- American Chemical Society\r
- Research and Development Department\r
- 1155 16th Street, N.W.\r
- Washington, D.C. 20036\r
- Phone: (202) 872-4541\r
- Fax: E-mail: INTERNET: LRG96@ACS.ORG\r
-\r
- William M. Holmes, Jr.\r
- National Archives and Records Administration\r
- NSZ Rm. 14N\r
- 7th & Pennsylvania, N.W.\r
- Washington, DC 20408\r
- Phone: (202) 501-5540\r
- Fax: (202) 501-5512\r
- E-mail: WHOLMES@AMERICAN.EDU\r
-\r
- Sperling Martin\r
- Information Resource Management\r
- 20030 Doolittle Street\r
- Gaithersburg, MD 20879\r
- Phone: (301) 924-1803\r
-\r
- Michael Neuman, Director\r
- The Center for Text and Technology\r
- Academic Computing Center\r
- 238 Reiss Science Building\r
- Georgetown University\r
- Washington, DC 20057\r
- Phone: (202) 687-6096\r
- Fax: (202) 687-6003\r
- E-mail: neuman@guvax.bitnet, neuman@guvax.georgetown.edu\r
-\r
- Barbara Paulson, Program Officer\r
- Division of Preservation and Access\r
- Room 802\r
- National Endowment for the Humanities\r
- 1100 Pennsylvania Avenue, N.W.\r
- Washington, DC 20506\r
- Phone: (202) 786-0577\r
- Fax: (202) 786-0243\r
- \r
- Allen H. Renear\r
- Senior Academic Planning Analyst\r
- Brown University Computing and Information Services\r
- 115 Waterman Street\r
- Campus Box 1885\r
- Providence, R.I. 02912\r
- Phone: (401) 863-7312\r
- Fax: (401) 863-7329\r
- E-mail: BITNET: Allen@BROWNVM or \r
- INTERNET: Allen@brownvm.brown.edu\r
-\r
- Susan M. Severtson, President\r
- Chadwyck-Healey, Inc.\r
- 1101 King Street\r
- Alexandria, VA 223l4\r
- Phone: (800) 752-05l5\r
- Fax: (703) 683-7589 \r
-\r
- Frank Withrow\r
- U.S. Department of Education\r
- 555 New Jersey Avenue, N.W.\r
- Washington, DC 20208-5644\r
- Phone: (202) 219-2200\r
- Fax: (202) 219-2106\r
-\r
-\r
-(LC STAFF)\r
- \r
- Linda L. Arret\r
- Machine-Readable Collections Reading Room LJ 132\r
- (202) 707-1490\r
-\r
- John D. Byrum, Jr.\r
- Descriptive Cataloging Division LM 540\r
- (202) 707-5194\r
-\r
- Mary Jane Cavallo\r
- Science and Technology Division LA 5210\r
- (202) 707-1219\r
-\r
- Susan Thea David\r
- Congressional Research Service LM 226\r
- (202) 707-7169\r
-\r
- Robert Dierker\r
- Senior Adviser for Multimedia Activities LM 608\r
- (202) 707-6151\r
-\r
- William W. Ellis\r
- Associate Librarian for Science and Technology LM 611\r
- (202) 707-6928\r
-\r
- Ronald Gephart\r
- Manuscript Division LM 102\r
- (202) 707-5097\r
-\r
- James Graber\r
- Information Technology Services LM G51\r
- (202) 707-9628\r
-\r
- Rich Greenfield\r
- American Memory LM 603\r
- (202) 707-6233\r
-\r
- Rebecca Guenther\r
- Network Development LM 639\r
- (202) 707-5092\r
-\r
- Kenneth E. Harris\r
- Preservation LM G21\r
- (202) 707-5213\r
-\r
- Staley Hitchcock\r
- Manuscript Division LM 102\r
- (202) 707-5383\r
-\r
- Bohdan Kantor\r
- Office of Special Projects LM 612\r
- (202) 707-0180\r
-\r
- John W. Kimball, Jr\r
- Machine-Readable Collections Reading Room LJ 132\r
- (202) 707-6560\r
-\r
- Basil Manns\r
- Information Technology Services LM G51\r
- (202) 707-8345\r
-\r
- Sally Hart McCallum\r
- Network Development LM 639\r
- (202) 707-6237\r
-\r
- Dana J. Pratt\r
- Publishing Office LM 602\r
- (202) 707-6027\r
-\r
- Jane Riefenhauser\r
- American Memory LM 603\r
- (202) 707-6233\r
-\r
- William Z. Schenck\r
- Collections Development LM 650\r
- (202) 707-7706\r
-\r
- Chandru J. Shahani\r
- Preservation Research and Testing Office (R&T) LM G38\r
- (202) 707-5607\r
-\r
- William J. Sittig\r
- Collections Development LM 650\r
- (202) 707-7050\r
-\r
- Paul Smith\r
- Manuscript Division LM 102\r
- (202) 707-5097\r
-\r
- James L. Stevens\r
- Information Technology Services LM G51\r
- (202) 707-9688\r
-\r
- Karen Stuart\r
- Manuscript Division LM 130\r
- (202) 707-5389\r
-\r
- Tamara Swora\r
- Preservation Microfilming Office LM G05\r
- (202) 707-6293\r
-\r
- Sarah Thomas\r
- Collections Cataloging LM 642\r
- (202) 707-5333\r
-\r
-\r
- END\r
- *************************************************************\r
-\r
-Note: This file has been edited for use on computer networks. This\r
-editing required the removal of diacritics, underlining, and fonts such\r
-as italics and bold. \r
-\r
-kde 11/92\r
-\r
-[A few of the italics (when used for emphasis) were replaced by CAPS mh]\r
-\r
-*End of The Project Gutenberg Etext of LOC WORKSHOP ON ELECTRONIC ETEXTS\r
-\r
+++ /dev/null
-\r
-This is the February 1992 Project Gutenberg release of: \r
- \r
-Paradise Lost by John Milton \r
- \r
-The oldest etext known to Project Gutenberg (ca. 1964-1965) \r
-(If you know of any older ones, please let us know.) \r
- \r
- \r
-Introduction (one page) \r
- \r
-This etext was originally created in 1964-1965 according to Dr. \r
-Joseph Raben of Queens College, NY, to whom it is attributed by \r
-Project Gutenberg. We had heard of this etext for years but it \r
-was not until 1991 that we actually managed to track it down to \r
-a specific location, and then it took months to convince people \r
-to let us have a copy, then more months for them actually to do \r
-the copying and get it to us. Then another month to convert to \r
-something we could massage with our favorite 486 in DOS. After \r
-that is was only a matter of days to get it into this shape you \r
-will see below. The original was, of course, in CAPS only, and \r
-so were all the other etexts of the 60's and early 70's. Don't \r
-let anyone fool you into thinking any etext with both upper and \r
-lower case is an original; all those original Project Gutenberg \r
-etexts were also in upper case and were translated or rewritten \r
-many times to get them into their current condition. They have \r
-been worked on by many people throughout the world. \r
- \r
-In the course of our searches for Professor Raben and his etext \r
-we were never able to determine where copies were or which of a \r
-variety of editions he may have used as a source. We did get a \r
-little information here and there, but even after we received a \r
-copy of the etext we were unwilling to release it without first \r
-determining that it was in fact Public Domain and finding Raben \r
-to verify this and get his permission. Interested enough, in a \r
-totally unrelated action to our searches for him, the professor \r
-subscribed to the Project Gutenberg listserver and we happened, \r
-by accident, to notice his name. (We don't really look at every \r
-subscription request as the computers usually handle them.) The \r
-etext was then properly identified, copyright analyzed, and the \r
-current edition prepared. \r
- \r
-To give you an estimation of the difference in the original and \r
-what we have today: the original was probably entered on cards \r
-commonly known at the time as "IBM cards" (Do Not Fold, Spindle \r
-or Mutilate) and probably took in excess of 100,000 of them. A \r
-single card could hold 80 characters (hence 80 characters is an \r
-accepted standard for so many computer margins), and the entire \r
-original edition we received in all caps was over 800,000 chars \r
-in length, including line enumeration, symbols for caps and the \r
-punctuation marks, etc., since they were not available keyboard \r
-characters at the time (probably the keyboards operated at baud \r
-rates of around 113, meaning the typists had to type slowly for \r
-the keyboard to keep up). \r
- \r
-This is the second version of Paradise Lost released by Project \r
-Gutenberg. The first was released as our October, 1991 etext. \r
- \r
- \r
- \r
- \r
- \r
-Paradise Lost \r
- \r
- \r
- \r
- \r
-Book I \r
- \r
- \r
-Of Man's first disobedience, and the fruit \r
-Of that forbidden tree whose mortal taste \r
-Brought death into the World, and all our woe, \r
-With loss of Eden, till one greater Man \r
-Restore us, and regain the blissful seat, \r
-Sing, Heavenly Muse, that, on the secret top \r
-Of Oreb, or of Sinai, didst inspire \r
-That shepherd who first taught the chosen seed \r
-In the beginning how the heavens and earth \r
-Rose out of Chaos: or, if Sion hill \r
-Delight thee more, and Siloa's brook that flowed \r
-Fast by the oracle of God, I thence \r
-Invoke thy aid to my adventurous song, \r
-That with no middle flight intends to soar \r
-Above th' Aonian mount, while it pursues \r
-Things unattempted yet in prose or rhyme. \r
-And chiefly thou, O Spirit, that dost prefer \r
-Before all temples th' upright heart and pure, \r
-Instruct me, for thou know'st; thou from the first \r
-Wast present, and, with mighty wings outspread, \r
-Dove-like sat'st brooding on the vast Abyss, \r
-And mad'st it pregnant: what in me is dark \r
-Illumine, what is low raise and support; \r
-That, to the height of this great argument, \r
-I may assert Eternal Providence, \r
-And justify the ways of God to men. \r
- Say first--for Heaven hides nothing from thy view, \r
-Nor the deep tract of Hell--say first what cause \r
-Moved our grand parents, in that happy state, \r
-Favoured of Heaven so highly, to fall off \r
-From their Creator, and transgress his will \r
-For one restraint, lords of the World besides. \r
-Who first seduced them to that foul revolt? \r
- Th' infernal Serpent; he it was whose guile, \r
-Stirred up with envy and revenge, deceived \r
-The mother of mankind, what time his pride \r
-Had cast him out from Heaven, with all his host \r
-Of rebel Angels, by whose aid, aspiring \r
-To set himself in glory above his peers, \r
-He trusted to have equalled the Most High, \r
-If he opposed, and with ambitious aim \r
-Against the throne and monarchy of God, \r
-Raised impious war in Heaven and battle proud, \r
-With vain attempt. Him the Almighty Power \r
-Hurled headlong flaming from th' ethereal sky, \r
-With hideous ruin and combustion, down \r
-To bottomless perdition, there to dwell \r
-In adamantine chains and penal fire, \r
-Who durst defy th' Omnipotent to arms. \r
- Nine times the space that measures day and night \r
-To mortal men, he, with his horrid crew, \r
-Lay vanquished, rolling in the fiery gulf, \r
-Confounded, though immortal. But his doom \r
-Reserved him to more wrath; for now the thought \r
-Both of lost happiness and lasting pain \r
-Torments him: round he throws his baleful eyes, \r
-That witnessed huge affliction and dismay, \r
-Mixed with obdurate pride and steadfast hate. \r
-At once, as far as Angels ken, he views \r
-The dismal situation waste and wild. \r
-A dungeon horrible, on all sides round, \r
-As one great furnace flamed; yet from those flames \r
-No light; but rather darkness visible \r
-Served only to discover sights of woe, \r
-Regions of sorrow, doleful shades, where peace \r
-And rest can never dwell, hope never comes \r
-That comes to all, but torture without end \r
-Still urges, and a fiery deluge, fed \r
-With ever-burning sulphur unconsumed. \r
-Such place Eternal Justice has prepared \r
-For those rebellious; here their prison ordained \r
-In utter darkness, and their portion set, \r
-As far removed from God and light of Heaven \r
-As from the centre thrice to th' utmost pole. \r
-Oh how unlike the place from whence they fell! \r
-There the companions of his fall, o'erwhelmed \r
-With floods and whirlwinds of tempestuous fire, \r
-He soon discerns; and, weltering by his side, \r
-One next himself in power, and next in crime, \r
-Long after known in Palestine, and named \r
-Beelzebub. To whom th' Arch-Enemy, \r
-And thence in Heaven called Satan, with bold words \r
-Breaking the horrid silence, thus began:-- \r
- "If thou beest he--but O how fallen! how changed \r
-From him who, in the happy realms of light \r
-Clothed with transcendent brightness, didst outshine \r
-Myriads, though bright!--if he whom mutual league, \r
-United thoughts and counsels, equal hope \r
-And hazard in the glorious enterprise \r
-Joined with me once, now misery hath joined \r
-In equal ruin; into what pit thou seest \r
-From what height fallen: so much the stronger proved \r
-He with his thunder; and till then who knew \r
-The force of those dire arms? Yet not for those, \r
-Nor what the potent Victor in his rage \r
-Can else inflict, do I repent, or change, \r
-Though changed in outward lustre, that fixed mind, \r
-And high disdain from sense of injured merit, \r
-That with the Mightiest raised me to contend, \r
-And to the fierce contentions brought along \r
-Innumerable force of Spirits armed, \r
-That durst dislike his reign, and, me preferring, \r
-His utmost power with adverse power opposed \r
-In dubious battle on the plains of Heaven, \r
-And shook his throne. What though the field be lost? \r
-All is not lost--the unconquerable will, \r
-And study of revenge, immortal hate, \r
-And courage never to submit or yield: \r
-And what is else not to be overcome? \r
-That glory never shall his wrath or might \r
-Extort from me. To bow and sue for grace \r
-With suppliant knee, and deify his power \r
-Who, from the terror of this arm, so late \r
-Doubted his empire--that were low indeed; \r
-That were an ignominy and shame beneath \r
-This downfall; since, by fate, the strength of Gods, \r
-And this empyreal sybstance, cannot fail; \r
-Since, through experience of this great event, \r
-In arms not worse, in foresight much advanced, \r
-We may with more successful hope resolve \r
-To wage by force or guile eternal war, \r
-Irreconcilable to our grand Foe, \r
-Who now triumphs, and in th' excess of joy \r
-Sole reigning holds the tyranny of Heaven." \r
- So spake th' apostate Angel, though in pain, \r
-Vaunting aloud, but racked with deep despair; \r
-And him thus answered soon his bold compeer:-- \r
- "O Prince, O Chief of many throned Powers \r
-That led th' embattled Seraphim to war \r
-Under thy conduct, and, in dreadful deeds \r
-Fearless, endangered Heaven's perpetual King, \r
-And put to proof his high supremacy, \r
-Whether upheld by strength, or chance, or fate, \r
-Too well I see and rue the dire event \r
-That, with sad overthrow and foul defeat, \r
-Hath lost us Heaven, and all this mighty host \r
-In horrible destruction laid thus low, \r
-As far as Gods and heavenly Essences \r
-Can perish: for the mind and spirit remains \r
-Invincible, and vigour soon returns, \r
-Though all our glory extinct, and happy state \r
-Here swallowed up in endless misery. \r
-But what if he our Conqueror (whom I now \r
-Of force believe almighty, since no less \r
-Than such could have o'erpowered such force as ours) \r
-Have left us this our spirit and strength entire, \r
-Strongly to suffer and support our pains, \r
-That we may so suffice his vengeful ire, \r
-Or do him mightier service as his thralls \r
-By right of war, whate'er his business be, \r
-Here in the heart of Hell to work in fire, \r
-Or do his errands in the gloomy Deep? \r
-What can it the avail though yet we feel \r
-Strength undiminished, or eternal being \r
-To undergo eternal punishment?" \r
- Whereto with speedy words th' Arch-Fiend replied:-- \r
-"Fallen Cherub, to be weak is miserable, \r
-Doing or suffering: but of this be sure-- \r
-To do aught good never will be our task, \r
-But ever to do ill our sole delight, \r
-As being the contrary to his high will \r
-Whom we resist. If then his providence \r
-Out of our evil seek to bring forth good, \r
-Our labour must be to pervert that end, \r
-And out of good still to find means of evil; \r
-Which ofttimes may succeed so as perhaps \r
-Shall grieve him, if I fail not, and disturb \r
-His inmost counsels from their destined aim. \r
-But see! the angry Victor hath recalled \r
-His ministers of vengeance and pursuit \r
-Back to the gates of Heaven: the sulphurous hail, \r
-Shot after us in storm, o'erblown hath laid \r
-The fiery surge that from the precipice \r
-Of Heaven received us falling; and the thunder, \r
-Winged with red lightning and impetuous rage, \r
-Perhaps hath spent his shafts, and ceases now \r
-To bellow through the vast and boundless Deep. \r
-Let us not slip th' occasion, whether scorn \r
-Or satiate fury yield it from our Foe. \r
-Seest thou yon dreary plain, forlorn and wild, \r
-The seat of desolation, void of light, \r
-Save what the glimmering of these livid flames \r
-Casts pale and dreadful? Thither let us tend \r
-From off the tossing of these fiery waves; \r
-There rest, if any rest can harbour there; \r
-And, re-assembling our afflicted powers, \r
-Consult how we may henceforth most offend \r
-Our enemy, our own loss how repair, \r
-How overcome this dire calamity, \r
-What reinforcement we may gain from hope, \r
-If not, what resolution from despair." \r
- Thus Satan, talking to his nearest mate, \r
-With head uplift above the wave, and eyes \r
-That sparkling blazed; his other parts besides \r
-Prone on the flood, extended long and large, \r
-Lay floating many a rood, in bulk as huge \r
-As whom the fables name of monstrous size, \r
-Titanian or Earth-born, that warred on Jove, \r
-Briareos or Typhon, whom the den \r
-By ancient Tarsus held, or that sea-beast \r
-Leviathan, which God of all his works \r
-Created hugest that swim th' ocean-stream. \r
-Him, haply slumbering on the Norway foam, \r
-The pilot of some small night-foundered skiff, \r
-Deeming some island, oft, as seamen tell, \r
-With fixed anchor in his scaly rind, \r
-Moors by his side under the lee, while night \r
-Invests the sea, and wished morn delays. \r
-So stretched out huge in length the Arch-fiend lay, \r
-Chained on the burning lake; nor ever thence \r
-Had risen, or heaved his head, but that the will \r
-And high permission of all-ruling Heaven \r
-Left him at large to his own dark designs, \r
-That with reiterated crimes he might \r
-Heap on himself damnation, while he sought \r
-Evil to others, and enraged might see \r
-How all his malice served but to bring forth \r
-Infinite goodness, grace, and mercy, shewn \r
-On Man by him seduced, but on himself \r
-Treble confusion, wrath, and vengeance poured. \r
- Forthwith upright he rears from off the pool \r
-His mighty stature; on each hand the flames \r
-Driven backward slope their pointing spires, and,rolled \r
-In billows, leave i' th' midst a horrid vale. \r
-Then with expanded wings he steers his flight \r
-Aloft, incumbent on the dusky air, \r
-That felt unusual weight; till on dry land \r
-He lights--if it were land that ever burned \r
-With solid, as the lake with liquid fire, \r
-And such appeared in hue as when the force \r
-Of subterranean wind transprots a hill \r
-Torn from Pelorus, or the shattered side \r
-Of thundering Etna, whose combustible \r
-And fuelled entrails, thence conceiving fire, \r
-Sublimed with mineral fury, aid the winds, \r
-And leave a singed bottom all involved \r
-With stench and smoke. Such resting found the sole \r
-Of unblest feet. Him followed his next mate; \r
-Both glorying to have scaped the Stygian flood \r
-As gods, and by their own recovered strength, \r
-Not by the sufferance of supernal Power. \r
- "Is this the region, this the soil, the clime," \r
-Said then the lost Archangel, "this the seat \r
-That we must change for Heaven?--this mournful gloom \r
-For that celestial light? Be it so, since he \r
-Who now is sovereign can dispose and bid \r
-What shall be right: farthest from him is best \r
-Whom reason hath equalled, force hath made supreme \r
-Above his equals. Farewell, happy fields, \r
-Where joy for ever dwells! Hail, horrors! hail, \r
-Infernal world! and thou, profoundest Hell, \r
-Receive thy new possessor--one who brings \r
-A mind not to be changed by place or time. \r
-The mind is its own place, and in itself \r
-Can make a Heaven of Hell, a Hell of Heaven. \r
-What matter where, if I be still the same, \r
-And what I should be, all but less than he \r
-Whom thunder hath made greater? Here at least \r
-We shall be free; th' Almighty hath not built \r
-Here for his envy, will not drive us hence: \r
-Here we may reigh secure; and, in my choice, \r
-To reign is worth ambition, though in Hell: \r
-Better to reign in Hell than serve in Heaven. \r
-But wherefore let we then our faithful friends, \r
-Th' associates and co-partners of our loss, \r
-Lie thus astonished on th' oblivious pool, \r
-And call them not to share with us their part \r
-In this unhappy mansion, or once more \r
-With rallied arms to try what may be yet \r
-Regained in Heaven, or what more lost in Hell?" \r
- So Satan spake; and him Beelzebub \r
-Thus answered:--"Leader of those armies bright \r
-Which, but th' Omnipotent, none could have foiled! \r
-If once they hear that voice, their liveliest pledge \r
-Of hope in fears and dangers--heard so oft \r
-In worst extremes, and on the perilous edge \r
-Of battle, when it raged, in all assaults \r
-Their surest signal--they will soon resume \r
-New courage and revive, though now they lie \r
-Grovelling and prostrate on yon lake of fire, \r
-As we erewhile, astounded and amazed; \r
-No wonder, fallen such a pernicious height!" \r
- He scare had ceased when the superior Fiend \r
-Was moving toward the shore; his ponderous shield, \r
-Ethereal temper, massy, large, and round, \r
-Behind him cast. The broad circumference \r
-Hung on his shoulders like the moon, whose orb \r
-Through optic glass the Tuscan artist views \r
-At evening, from the top of Fesole, \r
-Or in Valdarno, to descry new lands, \r
-Rivers, or mountains, in her spotty globe. \r
-His spear--to equal which the tallest pine \r
-Hewn on Norwegian hills, to be the mast \r
-Of some great ammiral, were but a wand-- \r
-He walked with, to support uneasy steps \r
-Over the burning marl, not like those steps \r
-On Heaven's azure; and the torrid clime \r
-Smote on him sore besides, vaulted with fire. \r
-Nathless he so endured, till on the beach \r
-Of that inflamed sea he stood, and called \r
-His legions--Angel Forms, who lay entranced \r
-Thick as autumnal leaves that strow the brooks \r
-In Vallombrosa, where th' Etrurian shades \r
-High over-arched embower; or scattered sedge \r
-Afloat, when with fierce winds Orion armed \r
-Hath vexed the Red-Sea coast, whose waves o'erthrew \r
-Busiris and his Memphian chivalry, \r
-While with perfidious hatred they pursued \r
-The sojourners of Goshen, who beheld \r
-From the safe shore their floating carcases \r
-And broken chariot-wheels. So thick bestrown, \r
-Abject and lost, lay these, covering the flood, \r
-Under amazement of their hideous change. \r
-He called so loud that all the hollow deep \r
-Of Hell resounded:--"Princes, Potentates, \r
-Warriors, the Flower of Heaven--once yours; now lost, \r
-If such astonishment as this can seize \r
-Eternal Spirits! Or have ye chosen this place \r
-After the toil of battle to repose \r
-Your wearied virtue, for the ease you find \r
-To slumber here, as in the vales of Heaven? \r
-Or in this abject posture have ye sworn \r
-To adore the Conqueror, who now beholds \r
-Cherub and Seraph rolling in the flood \r
-With scattered arms and ensigns, till anon \r
-His swift pursuers from Heaven-gates discern \r
-Th' advantage, and, descending, tread us down \r
-Thus drooping, or with linked thunderbolts \r
-Transfix us to the bottom of this gulf? \r
-Awake, arise, or be for ever fallen!" \r
- They heard, and were abashed, and up they sprung \r
-Upon the wing, as when men wont to watch \r
-On duty, sleeping found by whom they dread, \r
-Rouse and bestir themselves ere well awake. \r
-Nor did they not perceive the evil plight \r
-In which they were, or the fierce pains not feel; \r
-Yet to their General's voice they soon obeyed \r
-Innumerable. As when the potent rod \r
-Of Amram's son, in Egypt's evil day, \r
-Waved round the coast, up-called a pitchy cloud \r
-Of locusts, warping on the eastern wind, \r
-That o'er the realm of impious Pharaoh hung \r
-Like Night, and darkened all the land of Nile; \r
-So numberless were those bad Angels seen \r
-Hovering on wing under the cope of Hell, \r
-'Twixt upper, nether, and surrounding fires; \r
-Till, as a signal given, th' uplifted spear \r
-Of their great Sultan waving to direct \r
-Their course, in even balance down they light \r
-On the firm brimstone, and fill all the plain: \r
-A multitude like which the populous North \r
-Poured never from her frozen loins to pass \r
-Rhene or the Danaw, when her barbarous sons \r
-Came like a deluge on the South, and spread \r
-Beneath Gibraltar to the Libyan sands. \r
-Forthwith, form every squadron and each band, \r
-The heads and leaders thither haste where stood \r
-Their great Commander--godlike Shapes, and Forms \r
-Excelling human; princely Dignities; \r
-And Powers that erst in Heaven sat on thrones, \r
-Though on their names in Heavenly records now \r
-Be no memorial, blotted out and rased \r
-By their rebellion from the Books of Life. \r
-Nor had they yet among the sons of Eve \r
-Got them new names, till, wandering o'er the earth, \r
-Through God's high sufferance for the trial of man, \r
-By falsities and lies the greatest part \r
-Of mankind they corrupted to forsake \r
-God their Creator, and th' invisible \r
-Glory of him that made them to transform \r
-Oft to the image of a brute, adorned \r
-With gay religions full of pomp and gold, \r
-And devils to adore for deities: \r
-Then were they known to men by various names, \r
-And various idols through the heathen world. \r
- Say, Muse, their names then known, who first, who last, \r
-Roused from the slumber on that fiery couch, \r
-At their great Emperor's call, as next in worth \r
-Came singly where he stood on the bare strand, \r
-While the promiscuous crowd stood yet aloof? \r
- The chief were those who, from the pit of Hell \r
-Roaming to seek their prey on Earth, durst fix \r
-Their seats, long after, next the seat of God, \r
-Their altars by his altar, gods adored \r
-Among the nations round, and durst abide \r
-Jehovah thundering out of Sion, throned \r
-Between the Cherubim; yea, often placed \r
-Within his sanctuary itself their shrines, \r
-Abominations; and with cursed things \r
-His holy rites and solemn feasts profaned, \r
-And with their darkness durst affront his light. \r
-First, Moloch, horrid king, besmeared with blood \r
-Of human sacrifice, and parents' tears; \r
-Though, for the noise of drums and timbrels loud, \r
-Their children's cries unheard that passed through fire \r
-To his grim idol. Him the Ammonite \r
-Worshiped in Rabba and her watery plain, \r
-In Argob and in Basan, to the stream \r
-Of utmost Arnon. Nor content with such \r
-Audacious neighbourhood, the wisest heart \r
-Of Solomon he led by fraoud to build \r
-His temple right against the temple of God \r
-On that opprobrious hill, and made his grove \r
-The pleasant valley of Hinnom, Tophet thence \r
-And black Gehenna called, the type of Hell. \r
-Next Chemos, th' obscene dread of Moab's sons, \r
-From Aroar to Nebo and the wild \r
-Of southmost Abarim; in Hesebon \r
-And Horonaim, Seon's real, beyond \r
-The flowery dale of Sibma clad with vines, \r
-And Eleale to th' Asphaltic Pool: \r
-Peor his other name, when he enticed \r
-Israel in Sittim, on their march from Nile, \r
-To do him wanton rites, which cost them woe. \r
-Yet thence his lustful orgies he enlarged \r
-Even to that hill of scandal, by the grove \r
-Of Moloch homicide, lust hard by hate, \r
-Till good Josiah drove them thence to Hell. \r
-With these came they who, from the bordering flood \r
-Of old Euphrates to the brook that parts \r
-Egypt from Syrian ground, had general names \r
-Of Baalim and Ashtaroth--those male, \r
-These feminine. For Spirits, when they please, \r
-Can either sex assume, or both; so soft \r
-And uncompounded is their essence pure, \r
-Not tried or manacled with joint or limb, \r
-Nor founded on the brittle strength of bones, \r
-Like cumbrous flesh; but, in what shape they choose, \r
-Dilated or condensed, bright or obscure, \r
-Can execute their airy purposes, \r
-And works of love or enmity fulfil. \r
-For those the race of Israel oft forsook \r
-Their Living Strength, and unfrequented left \r
-His righteous altar, bowing lowly down \r
-To bestial gods; for which their heads as low \r
-Bowed down in battle, sunk before the spear \r
-Of despicable foes. With these in troop \r
-Came Astoreth, whom the Phoenicians called \r
-Astarte, queen of heaven, with crescent horns; \r
-To whose bright image nigntly by the moon \r
-Sidonian virgins paid their vows and songs; \r
-In Sion also not unsung, where stood \r
-Her temple on th' offensive mountain, built \r
-By that uxorious king whose heart, though large, \r
-Beguiled by fair idolatresses, fell \r
-To idols foul. Thammuz came next behind, \r
-Whose annual wound in Lebanon allured \r
-The Syrian damsels to lament his fate \r
-In amorous ditties all a summer's day, \r
-While smooth Adonis from his native rock \r
-Ran purple to the sea, supposed with blood \r
-Of Thammuz yearly wounded: the love-tale \r
-Infected Sion's daughters with like heat, \r
-Whose wanton passions in the sacred proch \r
-Ezekiel saw, when, by the vision led, \r
-His eye surveyed the dark idolatries \r
-Of alienated Judah. Next came one \r
-Who mourned in earnest, when the captive ark \r
-Maimed his brute image, head and hands lopt off, \r
-In his own temple, on the grunsel-edge, \r
-Where he fell flat and shamed his worshippers: \r
-Dagon his name, sea-monster,upward man \r
-And downward fish; yet had his temple high \r
-Reared in Azotus, dreaded through the coast \r
-Of Palestine, in Gath and Ascalon, \r
-And Accaron and Gaza's frontier bounds. \r
-Him followed Rimmon, whose delightful seat \r
-Was fair Damascus, on the fertile banks \r
-Of Abbana and Pharphar, lucid streams. \r
-He also against the house of God was bold: \r
-A leper once he lost, and gained a king-- \r
-Ahaz, his sottish conqueror, whom he drew \r
-God's altar to disparage and displace \r
-For one of Syrian mode, whereon to burn \r
-His odious offerings, and adore the gods \r
-Whom he had vanquished. After these appeared \r
-A crew who, under names of old renown-- \r
-Osiris, Isis, Orus, and their train-- \r
-With monstrous shapes and sorceries abused \r
-Fanatic Egypt and her priests to seek \r
-Their wandering gods disguised in brutish forms \r
-Rather than human. Nor did Israel scape \r
-Th' infection, when their borrowed gold composed \r
-The calf in Oreb; and the rebel king \r
-Doubled that sin in Bethel and in Dan, \r
-Likening his Maker to the grazed ox-- \r
-Jehovah, who, in one night, when he passed \r
-From Egypt marching, equalled with one stroke \r
-Both her first-born and all her bleating gods. \r
-Belial came last; than whom a Spirit more lewd \r
-Fell not from Heaven, or more gross to love \r
-Vice for itself. To him no temple stood \r
-Or altar smoked; yet who more oft than he \r
-In temples and at altars, when the priest \r
-Turns atheist, as did Eli's sons, who filled \r
-With lust and violence the house of God? \r
-In courts and palaces he also reigns, \r
-And in luxurious cities, where the noise \r
-Of riot ascends above their loftiest towers, \r
-And injury and outrage; and, when night \r
-Darkens the streets, then wander forth the sons \r
-Of Belial, flown with insolence and wine. \r
-Witness the streets of Sodom, and that night \r
-In Gibeah, when the hospitable door \r
-Exposed a matron, to avoid worse rape. \r
- These were the prime in order and in might: \r
-The rest were long to tell; though far renowned \r
-Th' Ionian gods--of Javan's issue held \r
-Gods, yet confessed later than Heaven and Earth, \r
-Their boasted parents;--Titan, Heaven's first-born, \r
-With his enormous brood, and birthright seized \r
-By younger Saturn: he from mightier Jove, \r
-His own and Rhea's son, like measure found; \r
-So Jove usurping reigned. These, first in Crete \r
-And Ida known, thence on the snowy top \r
-Of cold Olympus ruled the middle air, \r
-Their highest heaven; or on the Delphian cliff, \r
-Or in Dodona, and through all the bounds \r
-Of Doric land; or who with Saturn old \r
-Fled over Adria to th' Hesperian fields, \r
-And o'er the Celtic roamed the utmost Isles. \r
- All these and more came flocking; but with looks \r
-Downcast and damp; yet such wherein appeared \r
-Obscure some glimpse of joy to have found their Chief \r
-Not in despair, to have found themselves not lost \r
-In loss itself; which on his countenance cast \r
-Like doubtful hue. But he, his wonted pride \r
-Soon recollecting, with high words, that bore \r
-Semblance of worth, not substance, gently raised \r
-Their fainting courage, and dispelled their fears. \r
-Then straight commands that, at the warlike sound \r
-Of trumpets loud and clarions, be upreared \r
-His mighty standard. That proud honour claimed \r
-Azazel as his right, a Cherub tall: \r
-Who forthwith from the glittering staff unfurled \r
-Th' imperial ensign; which, full high advanced, \r
-Shone like a meteor streaming to the wind, \r
-With gems and golden lustre rich emblazed, \r
-Seraphic arms and trophies; all the while \r
-Sonorous metal blowing martial sounds: \r
-At which the universal host up-sent \r
-A shout that tore Hell's concave, and beyond \r
-Frighted the reign of Chaos and old Night. \r
-All in a moment through the gloom were seen \r
-Ten thousand banners rise into the air, \r
-With orient colours waving: with them rose \r
-A forest huge of spears; and thronging helms \r
-Appeared, and serried shields in thick array \r
-Of depth immeasurable. Anon they move \r
-In perfect phalanx to the Dorian mood \r
-Of flutes and soft recorders--such as raised \r
-To height of noblest temper heroes old \r
-Arming to battle, and instead of rage \r
-Deliberate valour breathed, firm, and unmoved \r
-With dread of death to flight or foul retreat; \r
-Nor wanting power to mitigate and swage \r
-With solemn touches troubled thoughts, and chase \r
-Anguish and doubt and fear and sorrow and pain \r
-From mortal or immortal minds. Thus they, \r
-Breathing united force with fixed thought, \r
-Moved on in silence to soft pipes that charmed \r
-Their painful steps o'er the burnt soil. And now \r
-Advanced in view they stand--a horrid front \r
-Of dreadful length and dazzling arms, in guise \r
-Of warriors old, with ordered spear and shield, \r
-Awaiting what command their mighty Chief \r
-Had to impose. He through the armed files \r
-Darts his experienced eye, and soon traverse \r
-The whole battalion views--their order due, \r
-Their visages and stature as of gods; \r
-Their number last he sums. And now his heart \r
-Distends with pride, and, hardening in his strength, \r
-Glories: for never, since created Man, \r
-Met such embodied force as, named with these, \r
-Could merit more than that small infantry \r
-Warred on by cranes--though all the giant brood \r
-Of Phlegra with th' heroic race were joined \r
-That fought at Thebes and Ilium, on each side \r
-Mixed with auxiliar gods; and what resounds \r
-In fable or romance of Uther's son, \r
-Begirt with British and Armoric knights; \r
-And all who since, baptized or infidel, \r
-Jousted in Aspramont, or Montalban, \r
-Damasco, or Marocco, or Trebisond, \r
-Or whom Biserta sent from Afric shore \r
-When Charlemain with all his peerage fell \r
-By Fontarabbia. Thus far these beyond \r
-Compare of mortal prowess, yet observed \r
-Their dread Commander. He, above the rest \r
-In shape and gesture proudly eminent, \r
-Stood like a tower. His form had yet not lost \r
-All her original brightness, nor appeared \r
-Less than Archangel ruined, and th' excess \r
-Of glory obscured: as when the sun new-risen \r
-Looks through the horizontal misty air \r
-Shorn of his beams, or, from behind the moon, \r
-In dim eclipse, disastrous twilight sheds \r
-On half the nations, and with fear of change \r
-Perplexes monarchs. Darkened so, yet shone \r
-Above them all th' Archangel: but his face \r
-Deep scars of thunder had intrenched, and care \r
-Sat on his faded cheek, but under brows \r
-Of dauntless courage, and considerate pride \r
-Waiting revenge. Cruel his eye, but cast \r
-Signs of remorse and passion, to behold \r
-The fellows of his crime, the followers rather \r
-(Far other once beheld in bliss), condemned \r
-For ever now to have their lot in pain-- \r
-Millions of Spirits for his fault amerced \r
-Of Heaven, and from eteranl splendours flung \r
-For his revolt--yet faithful how they stood, \r
-Their glory withered; as, when heaven's fire \r
-Hath scathed the forest oaks or mountain pines, \r
-With singed top their stately growth, though bare, \r
-Stands on the blasted heath. He now prepared \r
-To speak; whereat their doubled ranks they bend \r
-From wing to wing, and half enclose him round \r
-With all his peers: attention held them mute. \r
-Thrice he assayed, and thrice, in spite of scorn, \r
-Tears, such as Angels weep, burst forth: at last \r
-Words interwove with sighs found out their way:-- \r
- "O myriads of immortal Spirits! O Powers \r
-Matchless, but with th' Almighth!--and that strife \r
-Was not inglorious, though th' event was dire, \r
-As this place testifies, and this dire change, \r
-Hateful to utter. But what power of mind, \r
-Forseeing or presaging, from the depth \r
-Of knowledge past or present, could have feared \r
-How such united force of gods, how such \r
-As stood like these, could ever know repulse? \r
-For who can yet believe, though after loss, \r
-That all these puissant legions, whose exile \r
-Hath emptied Heaven, shall fail to re-ascend, \r
-Self-raised, and repossess their native seat? \r
-For me, be witness all the host of Heaven, \r
-If counsels different, or danger shunned \r
-By me, have lost our hopes. But he who reigns \r
-Monarch in Heaven till then as one secure \r
-Sat on his throne, upheld by old repute, \r
-Consent or custom, and his regal state \r
-Put forth at full, but still his strength concealed-- \r
-Which tempted our attempt, and wrought our fall. \r
-Henceforth his might we know, and know our own, \r
-So as not either to provoke, or dread \r
-New war provoked: our better part remains \r
-To work in close design, by fraud or guile, \r
-What force effected not; that he no less \r
-At length from us may find, who overcomes \r
-By force hath overcome but half his foe. \r
-Space may produce new Worlds; whereof so rife \r
-There went a fame in Heaven that he ere long \r
-Intended to create, and therein plant \r
-A generation whom his choice regard \r
-Should favour equal to the Sons of Heaven. \r
-Thither, if but to pry, shall be perhaps \r
-Our first eruption--thither, or elsewhere; \r
-For this infernal pit shall never hold \r
-Celestial Spirits in bondage, nor th' Abyss \r
-Long under darkness cover. But these thoughts \r
-Full counsel must mature. Peace is despaired; \r
-For who can think submission? War, then, war \r
-Open or understood, must be resolved." \r
- He spake; and, to confirm his words, outflew \r
-Millions of flaming swords, drawn from the thighs \r
-Of mighty Cherubim; the sudden blaze \r
-Far round illumined Hell. Highly they raged \r
-Against the Highest, and fierce with grasped arms \r
-Clashed on their sounding shields the din of war, \r
-Hurling defiance toward the vault of Heaven. \r
- There stood a hill not far, whose grisly top \r
-Belched fire and rolling smoke; the rest entire \r
-Shone with a glossy scurf--undoubted sign \r
-That in his womb was hid metallic ore, \r
-The work of sulphur. Thither, winged with speed, \r
-A numerous brigade hastened: as when bands \r
-Of pioneers, with spade and pickaxe armed, \r
-Forerun the royal camp, to trench a field, \r
-Or cast a rampart. Mammon led them on-- \r
-Mammon, the least erected Spirit that fell \r
-From Heaven; for even in Heaven his looks and thoughts \r
-Were always downward bent, admiring more \r
-The riches of heaven's pavement, trodden gold, \r
-Than aught divine or holy else enjoyed \r
-In vision beatific. By him first \r
-Men also, and by his suggestion taught, \r
-Ransacked the centre, and with impious hands \r
-Rifled the bowels of their mother Earth \r
-For treasures better hid. Soon had his crew \r
-Opened into the hill a spacious wound, \r
-And digged out ribs of gold. Let none admire \r
-That riches grow in Hell; that soil may best \r
-Deserve the precious bane. And here let those \r
-Who boast in mortal things, and wondering tell \r
-Of Babel, and the works of Memphian kings, \r
-Learn how their greatest monuments of fame \r
-And strength, and art, are easily outdone \r
-By Spirits reprobate, and in an hour \r
-What in an age they, with incessant toil \r
-And hands innumerable, scarce perform. \r
-Nigh on the plain, in many cells prepared, \r
-That underneath had veins of liquid fire \r
-Sluiced from the lake, a second multitude \r
-With wondrous art founded the massy ore, \r
-Severing each kind, and scummed the bullion-dross. \r
-A third as soon had formed within the ground \r
-A various mould, and from the boiling cells \r
-By strange conveyance filled each hollow nook; \r
-As in an organ, from one blast of wind, \r
-To many a row of pipes the sound-board breathes. \r
-Anon out of the earth a fabric huge \r
-Rose like an exhalation, with the sound \r
-Of dulcet symphonies and voices sweet-- \r
-Built like a temple, where pilasters round \r
-Were set, and Doric pillars overlaid \r
-With golden architrave; nor did there want \r
-Cornice or frieze, with bossy sculptures graven; \r
-The roof was fretted gold. Not Babylon \r
-Nor great Alcairo such magnificence \r
-Equalled in all their glories, to enshrine \r
-Belus or Serapis their gods, or seat \r
-Their kings, when Egypt with Assyria strove \r
-In wealth and luxury. Th' ascending pile \r
-Stood fixed her stately height, and straight the doors, \r
-Opening their brazen folds, discover, wide \r
-Within, her ample spaces o'er the smooth \r
-And level pavement: from the arched roof, \r
-Pendent by subtle magic, many a row \r
-Of starry lamps and blazing cressets, fed \r
-With naptha and asphaltus, yielded light \r
-As from a sky. The hasty multitude \r
-Admiring entered; and the work some praise, \r
-And some the architect. His hand was known \r
-In Heaven by many a towered structure high, \r
-Where sceptred Angels held their residence, \r
-And sat as Princes, whom the supreme King \r
-Exalted to such power, and gave to rule, \r
-Each in his Hierarchy, the Orders bright. \r
-Nor was his name unheard or unadored \r
-In ancient Greece; and in Ausonian land \r
-Men called him Mulciber; and how he fell \r
-From Heaven they fabled, thrown by angry Jove \r
-Sheer o'er the crystal battlements: from morn \r
-To noon he fell, from noon to dewy eve, \r
-A summer's day, and with the setting sun \r
-Dropt from the zenith, like a falling star, \r
-On Lemnos, th' Aegaean isle. Thus they relate, \r
-Erring; for he with this rebellious rout \r
-Fell long before; nor aught aviled him now \r
-To have built in Heaven high towers; nor did he scape \r
-By all his engines, but was headlong sent, \r
-With his industrious crew, to build in Hell. \r
- Meanwhile the winged Heralds, by command \r
-Of sovereign power, with awful ceremony \r
-And trumpet's sound, throughout the host proclaim \r
-A solemn council forthwith to be held \r
-At Pandemonium, the high capital \r
-Of Satan and his peers. Their summons called \r
-From every band and squared regiment \r
-By place or choice the worthiest: they anon \r
-With hundreds and with thousands trooping came \r
-Attended. All access was thronged; the gates \r
-And porches wide, but chief the spacious hall \r
-(Though like a covered field, where champions bold \r
-Wont ride in armed, and at the Soldan's chair \r
-Defied the best of Paynim chivalry \r
-To mortal combat, or career with lance), \r
-Thick swarmed, both on the ground and in the air, \r
-Brushed with the hiss of rustling wings. As bees \r
-In spring-time, when the Sun with Taurus rides. \r
-Pour forth their populous youth about the hive \r
-In clusters; they among fresh dews and flowers \r
-Fly to and fro, or on the smoothed plank, \r
-The suburb of their straw-built citadel, \r
-New rubbed with balm, expatiate, and confer \r
-Their state-affairs: so thick the airy crowd \r
-Swarmed and were straitened; till, the signal given, \r
-Behold a wonder! They but now who seemed \r
-In bigness to surpass Earth's giant sons, \r
-Now less than smallest dwarfs, in narrow room \r
-Throng numberless--like that pygmean race \r
-Beyond the Indian mount; or faery elves, \r
-Whose midnight revels, by a forest-side \r
-Or fountain, some belated peasant sees, \r
-Or dreams he sees, while overhead the Moon \r
-Sits arbitress, and nearer to the Earth \r
-Wheels her pale course: they, on their mirth and dance \r
-Intent, with jocund music charm his ear; \r
-At once with joy and fear his heart rebounds. \r
-Thus incorporeal Spirits to smallest forms \r
-Reduced their shapes immense, and were at large, \r
-Though without number still, amidst the hall \r
-Of that infernal court. But far within, \r
-And in their own dimensions like themselves, \r
-The great Seraphic Lords and Cherubim \r
-In close recess and secret conclave sat, \r
-A thousand demi-gods on golden seats, \r
-Frequent and full. After short silence then, \r
-And summons read, the great consult began. \r
- \r
- \r
- \r
-Book II \r
- \r
- \r
-High on a throne of royal state, which far \r
-Outshone the wealth or Ormus and of Ind, \r
-Or where the gorgeous East with richest hand \r
-Showers on her kings barbaric pearl and gold, \r
-Satan exalted sat, by merit raised \r
-To that bad eminence; and, from despair \r
-Thus high uplifted beyond hope, aspires \r
-Beyond thus high, insatiate to pursue \r
-Vain war with Heaven; and, by success untaught, \r
-His proud imaginations thus displayed:-- \r
- "Powers and Dominions, Deities of Heaven!-- \r
-For, since no deep within her gulf can hold \r
-Immortal vigour, though oppressed and fallen, \r
-I give not Heaven for lost: from this descent \r
-Celestial Virtues rising will appear \r
-More glorious and more dread than from no fall, \r
-And trust themselves to fear no second fate!-- \r
-Me though just right, and the fixed laws of Heaven, \r
-Did first create your leader--next, free choice \r
-With what besides in council or in fight \r
-Hath been achieved of merit--yet this loss, \r
-Thus far at least recovered, hath much more \r
-Established in a safe, unenvied throne, \r
-Yielded with full consent. The happier state \r
-In Heaven, which follows dignity, might draw \r
-Envy from each inferior; but who here \r
-Will envy whom the highest place exposes \r
-Foremost to stand against the Thunderer's aim \r
-Your bulwark, and condemns to greatest share \r
-Of endless pain? Where there is, then, no good \r
-For which to strive, no strife can grow up there \r
-From faction: for none sure will claim in Hell \r
-Precedence; none whose portion is so small \r
-Of present pain that with ambitious mind \r
-Will covet more! With this advantage, then, \r
-To union, and firm faith, and firm accord, \r
-More than can be in Heaven, we now return \r
-To claim our just inheritance of old, \r
-Surer to prosper than prosperity \r
-Could have assured us; and by what best way, \r
-Whether of open war or covert guile, \r
-We now debate. Who can advise may speak." \r
- He ceased; and next him Moloch, sceptred king, \r
-Stood up--the strongest and the fiercest Spirit \r
-That fought in Heaven, now fiercer by despair. \r
-His trust was with th' Eternal to be deemed \r
-Equal in strength, and rather than be less \r
-Cared not to be at all; with that care lost \r
-Went all his fear: of God, or Hell, or worse, \r
-He recked not, and these words thereafter spake:-- \r
- "My sentence is for open war. Of wiles, \r
-More unexpert, I boast not: them let those \r
-Contrive who need, or when they need; not now. \r
-For, while they sit contriving, shall the rest-- \r
-Millions that stand in arms, and longing wait \r
-The signal to ascend--sit lingering here, \r
-Heaven's fugitives, and for their dwelling-place \r
-Accept this dark opprobrious den of shame, \r
-The prison of his ryranny who reigns \r
-By our delay? No! let us rather choose, \r
-Armed with Hell-flames and fury, all at once \r
-O'er Heaven's high towers to force resistless way, \r
-Turning our tortures into horrid arms \r
-Against the Torturer; when, to meet the noise \r
-Of his almighty engine, he shall hear \r
-Infernal thunder, and, for lightning, see \r
-Black fire and horror shot with equal rage \r
-Among his Angels, and his throne itself \r
-Mixed with Tartarean sulphur and strange fire, \r
-His own invented torments. But perhaps \r
-The way seems difficult, and steep to scale \r
-With upright wing against a higher foe! \r
-Let such bethink them, if the sleepy drench \r
-Of that forgetful lake benumb not still, \r
-That in our porper motion we ascend \r
-Up to our native seat; descent and fall \r
-To us is adverse. Who but felt of late, \r
-When the fierce foe hung on our broken rear \r
-Insulting, and pursued us through the Deep, \r
-With what compulsion and laborious flight \r
-We sunk thus low? Th' ascent is easy, then; \r
-Th' event is feared! Should we again provoke \r
-Our stronger, some worse way his wrath may find \r
-To our destruction, if there be in Hell \r
-Fear to be worse destroyed! What can be worse \r
-Than to dwell here, driven out from bliss, condemned \r
-In this abhorred deep to utter woe! \r
-Where pain of unextinguishable fire \r
-Must exercise us without hope of end \r
-The vassals of his anger, when the scourge \r
-Inexorably, and the torturing hour, \r
-Calls us to penance? More destroyed than thus, \r
-We should be quite abolished, and expire. \r
-What fear we then? what doubt we to incense \r
-His utmost ire? which, to the height enraged, \r
-Will either quite consume us, and reduce \r
-To nothing this essential--happier far \r
-Than miserable to have eternal being!-- \r
-Or, if our substance be indeed divine, \r
-And cannot cease to be, we are at worst \r
-On this side nothing; and by proof we feel \r
-Our power sufficient to disturb his Heaven, \r
-And with perpetual inroads to alarm, \r
-Though inaccessible, his fatal throne: \r
-Which, if not victory, is yet revenge." \r
- He ended frowning, and his look denounced \r
-Desperate revenge, and battle dangerous \r
-To less than gods. On th' other side up rose \r
-Belial, in act more graceful and humane. \r
-A fairer person lost not Heaven; he seemed \r
-For dignity composed, and high exploit. \r
-But all was false and hollow; though his tongue \r
-Dropped manna, and could make the worse appear \r
-The better reason, to perplex and dash \r
-Maturest counsels: for his thoughts were low-- \r
- To vice industrious, but to nobler deeds \r
-Timorous and slothful. Yet he pleased the ear, \r
-And with persuasive accent thus began:-- \r
- "I should be much for open war, O Peers, \r
-As not behind in hate, if what was urged \r
-Main reason to persuade immediate war \r
-Did not dissuade me most, and seem to cast \r
-Ominous conjecture on the whole success; \r
-When he who most excels in fact of arms, \r
-In what he counsels and in what excels \r
-Mistrustful, grounds his courage on despair \r
-And utter dissolution, as the scope \r
-Of all his aim, after some dire revenge. \r
-First, what revenge? The towers of Heaven are filled \r
-With armed watch, that render all access \r
-Impregnable: oft on the bodering Deep \r
-Encamp their legions, or with obscure wing \r
-Scout far and wide into the realm of Night, \r
-Scorning surprise. Or, could we break our way \r
-By force, and at our heels all Hell should rise \r
-With blackest insurrection to confound \r
-Heaven's purest light, yet our great Enemy, \r
-All incorruptible, would on his throne \r
-Sit unpolluted, and th' ethereal mould, \r
-Incapable of stain, would soon expel \r
-Her mischief, and purge off the baser fire, \r
-Victorious. Thus repulsed, our final hope \r
-Is flat despair: we must exasperate \r
-Th' Almighty Victor to spend all his rage; \r
-And that must end us; that must be our cure-- \r
-To be no more. Sad cure! for who would lose, \r
-Though full of pain, this intellectual being, \r
-Those thoughts that wander through eternity, \r
-To perish rather, swallowed up and lost \r
-In the wide womb of uncreated Night, \r
-Devoid of sense and motion? And who knows, \r
-Let this be good, whether our angry Foe \r
-Can give it, or will ever? How he can \r
-Is doubtful; that he never will is sure. \r
-Will he, so wise, let loose at once his ire, \r
-Belike through impotence or unaware, \r
-To give his enemies their wish, and end \r
-Them in his anger whom his anger saves \r
-To punish endless? 'Wherefore cease we, then?' \r
-Say they who counsel war; 'we are decreed, \r
-Reserved, and destined to eternal woe; \r
-Whatever doing, what can we suffer more, \r
-What can we suffer worse?' Is this, then, worst-- \r
-Thus sitting, thus consulting, thus in arms? \r
-What when we fled amain, pursued and struck \r
-With Heaven's afflicting thunder, and besought \r
-The Deep to shelter us? This Hell then seemed \r
-A refuge from those wounds. Or when we lay \r
-Chained on the burning lake? That sure was worse. \r
-What if the breath that kindled those grim fires, \r
-Awaked, should blow them into sevenfold rage, \r
-And plunge us in the flames; or from above \r
-Should intermitted vengeance arm again \r
-His red right hand to plague us? What if all \r
-Her stores were opened, and this firmament \r
-Of Hell should spout her cataracts of fire, \r
-Impendent horrors, threatening hideous fall \r
-One day upon our heads; while we perhaps, \r
-Designing or exhorting glorious war, \r
-Caught in a fiery tempest, shall be hurled, \r
-Each on his rock transfixed, the sport and prey \r
-Or racking whirlwinds, or for ever sunk \r
-Under yon boiling ocean, wrapt in chains, \r
-There to converse with everlasting groans, \r
-Unrespited, unpitied, unreprieved, \r
-Ages of hopeless end? This would be worse. \r
-War, therefore, open or concealed, alike \r
-My voice dissuades; for what can force or guile \r
-With him, or who deceive his mind, whose eye \r
-Views all things at one view? He from Heaven's height \r
-All these our motions vain sees and derides, \r
-Not more almighty to resist our might \r
-Than wise to frustrate all our plots and wiles. \r
-Shall we, then, live thus vile--the race of Heaven \r
-Thus trampled, thus expelled, to suffer here \r
-Chains and these torments? Better these than worse, \r
-By my advice; since fate inevitable \r
-Subdues us, and omnipotent decree, \r
-The Victor's will. To suffer, as to do, \r
-Our strength is equal; nor the law unjust \r
-That so ordains. This was at first resolved, \r
-If we were wise, against so great a foe \r
-Contending, and so doubtful what might fall. \r
-I laugh when those who at the spear are bold \r
-And venturous, if that fail them, shrink, and fear \r
-What yet they know must follow--to endure \r
-Exile, or igominy, or bonds, or pain, \r
-The sentence of their Conqueror. This is now \r
-Our doom; which if we can sustain and bear, \r
-Our Supreme Foe in time may much remit \r
-His anger, and perhaps, thus far removed, \r
-Not mind us not offending, satisfied \r
-With what is punished; whence these raging fires \r
-Will slacken, if his breath stir not their flames. \r
-Our purer essence then will overcome \r
-Their noxious vapour; or, inured, not feel; \r
-Or, changed at length, and to the place conformed \r
-In temper and in nature, will receive \r
-Familiar the fierce heat; and, void of pain, \r
-This horror will grow mild, this darkness light; \r
-Besides what hope the never-ending flight \r
-Of future days may bring, what chance, what change \r
-Worth waiting--since our present lot appears \r
-For happy though but ill, for ill not worst, \r
-If we procure not to ourselves more woe." \r
- Thus Belial, with words clothed in reason's garb, \r
-Counselled ignoble ease and peaceful sloth, \r
-Not peace; and after him thus Mammon spake:-- \r
- "Either to disenthrone the King of Heaven \r
-We war, if war be best, or to regain \r
-Our own right lost. Him to unthrone we then \r
-May hope, when everlasting Fate shall yield \r
-To fickle Chance, and Chaos judge the strife. \r
-The former, vain to hope, argues as vain \r
-The latter; for what place can be for us \r
-Within Heaven's bound, unless Heaven's Lord supreme \r
-We overpower? Suppose he should relent \r
-And publish grace to all, on promise made \r
-Of new subjection; with what eyes could we \r
-Stand in his presence humble, and receive \r
-Strict laws imposed, to celebrate his throne \r
-With warbled hyms, and to his Godhead sing \r
-Forced hallelujahs, while he lordly sits \r
-Our envied sovereign, and his altar breathes \r
-Ambrosial odours and ambrosial flowers, \r
-Our servile offerings? This must be our task \r
-In Heaven, this our delight. How wearisome \r
-Eternity so spent in worship paid \r
-To whom we hate! Let us not then pursue, \r
-By force impossible, by leave obtained \r
-Unacceptable, though in Heaven, our state \r
-Of splendid vassalage; but rather seek \r
-Our own good from ourselves, and from our own \r
-Live to ourselves, though in this vast recess, \r
-Free and to none accountable, preferring \r
-Hard liberty before the easy yoke \r
-Of servile pomp. Our greatness will appear \r
-Then most conspicuous when great things of small, \r
-Useful of hurtful, prosperous of adverse, \r
-We can create, and in what place soe'er \r
-Thrive under evil, and work ease out of pain \r
-Through labour and endurance. This deep world \r
-Of darkness do we dread? How oft amidst \r
-Thick clouds and dark doth Heaven's all-ruling Sire \r
-Choose to reside, his glory unobscured, \r
-And with the majesty of darkness round \r
-Covers his throne, from whence deep thunders roar. \r
-Mustering their rage, and Heaven resembles Hell! \r
-As he our darkness, cannot we his light \r
-Imitate when we please? This desert soil \r
-Wants not her hidden lustre, gems and gold; \r
-Nor want we skill or art from whence to raise \r
-Magnificence; and what can Heaven show more? \r
-Our torments also may, in length of time, \r
-Become our elements, these piercing fires \r
-As soft as now severe, our temper changed \r
-Into their temper; which must needs remove \r
-The sensible of pain. All things invite \r
-To peaceful counsels, and the settled state \r
-Of order, how in safety best we may \r
-Compose our present evils, with regard \r
-Of what we are and where, dismissing quite \r
-All thoughts of war. Ye have what I advise." \r
- He scarce had finished, when such murmur filled \r
-Th' assembly as when hollow rocks retain \r
-The sound of blustering winds, which all night long \r
-Had roused the sea, now with hoarse cadence lull \r
-Seafaring men o'erwatched, whose bark by chance \r
-Or pinnace, anchors in a craggy bay \r
-After the tempest. Such applause was heard \r
-As Mammon ended, and his sentence pleased, \r
-Advising peace: for such another field \r
-They dreaded worse than Hell; so much the fear \r
-Of thunder and the sword of Michael \r
-Wrought still within them; and no less desire \r
-To found this nether empire, which might rise, \r
-By policy and long process of time, \r
-In emulation opposite to Heaven. \r
-Which when Beelzebub perceived--than whom, \r
-Satan except, none higher sat--with grave \r
-Aspect he rose, and in his rising seemed \r
-A pillar of state. Deep on his front engraven \r
-Deliberation sat, and public care; \r
-And princely counsel in his face yet shone, \r
-Majestic, though in ruin. Sage he stood \r
-With Atlantean shoulders, fit to bear \r
-The weight of mightiest monarchies; his look \r
-Drew audience and attention still as night \r
-Or summer's noontide air, while thus he spake:-- \r
- "Thrones and Imperial Powers, Offspring of Heaven, \r
-Ethereal Virtues! or these titles now \r
-Must we renounce, and, changing style, be called \r
-Princes of Hell? for so the popular vote \r
-Inclines--here to continue, and build up here \r
-A growing empire; doubtless! while we dream, \r
-And know not that the King of Heaven hath doomed \r
-This place our dungeon, not our safe retreat \r
-Beyond his potent arm, to live exempt \r
-From Heaven's high jurisdiction, in new league \r
-Banded against his throne, but to remain \r
-In strictest bondage, though thus far removed, \r
-Under th' inevitable curb, reserved \r
-His captive multitude. For he, to be sure, \r
-In height or depth, still first and last will reign \r
-Sole king, and of his kingdom lose no part \r
-By our revolt, but over Hell extend \r
-His empire, and with iron sceptre rule \r
-Us here, as with his golden those in Heaven. \r
-What sit we then projecting peace and war? \r
-War hath determined us and foiled with loss \r
-Irreparable; terms of peace yet none \r
-Vouchsafed or sought; for what peace will be given \r
-To us enslaved, but custody severe, \r
-And stripes and arbitrary punishment \r
-Inflicted? and what peace can we return, \r
-But, to our power, hostility and hate, \r
-Untamed reluctance, and revenge, though slow, \r
-Yet ever plotting how the Conqueror least \r
-May reap his conquest, and may least rejoice \r
-In doing what we most in suffering feel? \r
-Nor will occasion want, nor shall we need \r
-With dangerous expedition to invade \r
-Heaven, whose high walls fear no assault or siege, \r
-Or ambush from the Deep. What if we find \r
-Some easier enterprise? There is a place \r
-(If ancient and prophetic fame in Heaven \r
-Err not)--another World, the happy seat \r
-Of some new race, called Man, about this time \r
-To be created like to us, though less \r
-In power and excellence, but favoured more \r
-Of him who rules above; so was his will \r
-Pronounced among the Gods, and by an oath \r
-That shook Heaven's whole circumference confirmed. \r
-Thither let us bend all our thoughts, to learn \r
-What creatures there inhabit, of what mould \r
-Or substance, how endued, and what their power \r
-And where their weakness: how attempted best, \r
-By force of subtlety. Though Heaven be shut, \r
-And Heaven's high Arbitrator sit secure \r
-In his own strength, this place may lie exposed, \r
-The utmost border of his kingdom, left \r
-To their defence who hold it: here, perhaps, \r
-Some advantageous act may be achieved \r
-By sudden onset--either with Hell-fire \r
-To waste his whole creation, or possess \r
-All as our own, and drive, as we were driven, \r
-The puny habitants; or, if not drive, \r
-Seduce them to our party, that their God \r
-May prove their foe, and with repenting hand \r
-Abolish his own works. This would surpass \r
-Common revenge, and interrupt his joy \r
-In our confusion, and our joy upraise \r
-In his disturbance; when his darling sons, \r
-Hurled headlong to partake with us, shall curse \r
-Their frail original, and faded bliss-- \r
-Faded so soon! Advise if this be worth \r
-Attempting, or to sit in darkness here \r
-Hatching vain empires." Thus beelzebub \r
-Pleaded his devilish counsel--first devised \r
-By Satan, and in part proposed: for whence, \r
-But from the author of all ill, could spring \r
-So deep a malice, to confound the race \r
-Of mankind in one root, and Earth with Hell \r
-To mingle and involve, done all to spite \r
-The great Creator? But their spite still serves \r
-His glory to augment. The bold design \r
-Pleased highly those infernal States, and joy \r
-Sparkled in all their eyes: with full assent \r
-They vote: whereat his speech he thus renews:-- \r
-"Well have ye judged, well ended long debate, \r
-Synod of Gods, and, like to what ye are, \r
-Great things resolved, which from the lowest deep \r
-Will once more lift us up, in spite of fate, \r
-Nearer our ancient seat--perhaps in view \r
-Of those bright confines, whence, with neighbouring arms, \r
-And opportune excursion, we may chance \r
-Re-enter Heaven; or else in some mild zone \r
-Dwell, not unvisited of Heaven's fair light, \r
-Secure, and at the brightening orient beam \r
-Purge off this gloom: the soft delicious air, \r
-To heal the scar of these corrosive fires, \r
-Shall breathe her balm. But, first, whom shall we send \r
-In search of this new World? whom shall we find \r
-Sufficient? who shall tempt with wandering feet \r
-The dark, unbottomed, infinite Abyss, \r
-And through the palpable obscure find out \r
-His uncouth way, or spread his airy flight, \r
-Upborne with indefatigable wings \r
-Over the vast abrupt, ere he arrive \r
-The happy Isle? What strength, what art, can then \r
-Suffice, or what evasion bear him safe, \r
-Through the strict senteries and stations thick \r
-Of Angels watching round? Here he had need \r
-All circumspection: and we now no less \r
-Choice in our suffrage; for on whom we send \r
-The weight of all, and our last hope, relies." \r
- This said, he sat; and expectation held \r
-His look suspense, awaiting who appeared \r
-To second, or oppose, or undertake \r
-The perilous attempt. But all sat mute, \r
-Pondering the danger with deep thoughts; and each \r
-In other's countenance read his own dismay, \r
-Astonished. None among the choice and prime \r
-Of those Heaven-warring champions could be found \r
-So hardy as to proffer or accept, \r
-Alone, the dreadful voyage; till, at last, \r
-Satan, whom now transcendent glory raised \r
-Above his fellows, with monarchal pride \r
-Conscious of highest worth, unmoved thus spake:-- \r
- "O Progeny of Heaven! Empyreal Thrones! \r
-With reason hath deep silence and demur \r
-Seized us, though undismayed. Long is the way \r
-And hard, that out of Hell leads up to light. \r
-Our prison strong, this huge convex of fire, \r
-Outrageous to devour, immures us round \r
-Ninefold; and gates of burning adamant, \r
-Barred over us, prohibit all egress. \r
-These passed, if any pass, the void profound \r
-Of unessential Night receives him next, \r
-Wide-gaping, and with utter loss of being \r
-Threatens him, plunged in that abortive gulf. \r
-If thence he scape, into whatever world, \r
-Or unknown region, what remains him less \r
-Than unknown dangers, and as hard escape? \r
-But I should ill become this throne, O Peers, \r
-And this imperial sovereignty, adorned \r
-With splendour, armed with power, if aught proposed \r
-And judged of public moment in the shape \r
-Of difficulty or danger, could deter \r
-Me from attempting. Wherefore do I assume \r
-These royalties, and not refuse to reign, \r
-Refusing to accept as great a share \r
-Of hazard as of honour, due alike \r
-To him who reigns, and so much to him due \r
-Of hazard more as he above the rest \r
-High honoured sits? Go, therefore, mighty Powers, \r
-Terror of Heaven, though fallen; intend at home, \r
-While here shall be our home, what best may ease \r
-The present misery, and render Hell \r
-More tolerable; if there be cure or charm \r
-To respite, or deceive, or slack the pain \r
-Of this ill mansion: intermit no watch \r
-Against a wakeful foe, while I abroad \r
-Through all the coasts of dark destruction seek \r
-Deliverance for us all. This enterprise \r
-None shall partake with me." Thus saying, rose \r
-The Monarch, and prevented all reply; \r
-Prudent lest, from his resolution raised, \r
-Others among the chief might offer now, \r
-Certain to be refused, what erst they feared, \r
-And, so refused, might in opinion stand \r
-His rivals, winning cheap the high repute \r
-Which he through hazard huge must earn. But they \r
-Dreaded not more th' adventure than his voice \r
-Forbidding; and at once with him they rose. \r
-Their rising all at once was as the sound \r
-Of thunder heard remote. Towards him they bend \r
-With awful reverence prone, and as a God \r
-Extol him equal to the Highest in Heaven. \r
-Nor failed they to express how much they praised \r
-That for the general safety he despised \r
-His own: for neither do the Spirits damned \r
-Lose all their virtue; lest bad men should boast \r
-Their specious deeds on earth, which glory excites, \r
-Or close ambition varnished o'er with zeal. \r
- Thus they their doubtful consultations dark \r
-Ended, rejoicing in their matchless Chief: \r
-As, when from mountain-tops the dusky clouds \r
-Ascending, while the north wind sleeps, o'erspread \r
-Heaven's cheerful face, the louring element \r
-Scowls o'er the darkened landscape snow or shower, \r
-If chance the radiant sun, with farewell sweet, \r
-Extend his evening beam, the fields revive, \r
-The birds their notes renew, and bleating herds \r
-Attest their joy, that hill and valley rings. \r
-O shame to men! Devil with devil damned \r
-Firm concord holds; men only disagree \r
-Of creatures rational, though under hope \r
-Of heavenly grace, and, God proclaiming peace, \r
-Yet live in hatred, enmity, and strife \r
-Among themselves, and levy cruel wars \r
-Wasting the earth, each other to destroy: \r
-As if (which might induce us to accord) \r
-Man had not hellish foes enow besides, \r
-That day and night for his destruction wait! \r
- The Stygian council thus dissolved; and forth \r
-In order came the grand infernal Peers: \r
-Midst came their mighty Paramount, and seemed \r
-Alone th' antagonist of Heaven, nor less \r
-Than Hell's dread Emperor, with pomp supreme, \r
-And god-like imitated state: him round \r
-A globe of fiery Seraphim enclosed \r
-With bright emblazonry, and horrent arms. \r
-Then of their session ended they bid cry \r
-With trumpet's regal sound the great result: \r
-Toward the four winds four speedy Cherubim \r
-Put to their mouths the sounding alchemy, \r
-By herald's voice explained; the hollow Abyss \r
-Heard far adn wide, and all the host of Hell \r
-With deafening shout returned them loud acclaim. \r
-Thence more at ease their minds, and somewhat raised \r
-By false presumptuous hope, the ranged Powers \r
-Disband; and, wandering, each his several way \r
-Pursues, as inclination or sad choice \r
-Leads him perplexed, where he may likeliest find \r
-Truce to his restless thoughts, and entertain \r
-The irksome hours, till his great Chief return. \r
-Part on the plain, or in the air sublime, \r
-Upon the wing or in swift race contend, \r
-As at th' Olympian games or Pythian fields; \r
-Part curb their fiery steeds, or shun the goal \r
-With rapid wheels, or fronted brigades form: \r
-As when, to warn proud cities, war appears \r
-Waged in the troubled sky, and armies rush \r
-To battle in the clouds; before each van \r
-Prick forth the airy knights, and couch their spears, \r
-Till thickest legions close; with feats of arms \r
-From either end of heaven the welkin burns. \r
-Others, with vast Typhoean rage, more fell, \r
-Rend up both rocks and hills, and ride the air \r
-In whirlwind; Hell scarce holds the wild uproar:-- \r
-As when Alcides, from Oechalia crowned \r
-With conquest, felt th' envenomed robe, and tore \r
-Through pain up by the roots Thessalian pines, \r
-And Lichas from the top of Oeta threw \r
-Into th' Euboic sea. Others, more mild, \r
-Retreated in a silent valley, sing \r
-With notes angelical to many a harp \r
-Their own heroic deeds, and hapless fall \r
-By doom of battle, and complain that Fate \r
-Free Virtue should enthrall to Force or Chance. \r
-Their song was partial; but the harmony \r
-(What could it less when Spirits immortal sing?) \r
-Suspended Hell, and took with ravishment \r
-The thronging audience. In discourse more sweet \r
-(For Eloquence the Soul, Song charms the Sense) \r
-Others apart sat on a hill retired, \r
-In thoughts more elevate, and reasoned high \r
-Of Providence, Foreknowledge, Will, and Fate-- \r
-Fixed fate, free will, foreknowledge absolute, \r
-And found no end, in wandering mazes lost. \r
-Of good and evil much they argued then, \r
-Of happiness and final misery, \r
-Passion and apathy, and glory and shame: \r
-Vain wisdom all, and false philosophy!-- \r
-Yet, with a pleasing sorcery, could charm \r
-Pain for a while or anguish, and excite \r
-Fallacious hope, or arm th' obdured breast \r
-With stubborn patience as with triple steel. \r
-Another part, in squadrons and gross bands, \r
-On bold adventure to discover wide \r
-That dismal world, if any clime perhaps \r
-Might yield them easier habitation, bend \r
-Four ways their flying march, along the banks \r
-Of four infernal rivers, that disgorge \r
-Into the burning lake their baleful streams-- \r
-Abhorred Styx, the flood of deadly hate; \r
-Sad Acheron of sorrow, black and deep; \r
-Cocytus, named of lamentation loud \r
-Heard on the rueful stream; fierce Phlegeton, \r
-Whose waves of torrent fire inflame with rage. \r
-Far off from these, a slow and silent stream, \r
-Lethe, the river of oblivion, rolls \r
-Her watery labyrinth, whereof who drinks \r
-Forthwith his former state and being forgets-- \r
-Forgets both joy and grief, pleasure and pain. \r
-Beyond this flood a frozen continent \r
-Lies dark and wild, beat with perpetual storms \r
-Of whirlwind and dire hail, which on firm land \r
-Thaws not, but gathers heap, and ruin seems \r
-Of ancient pile; all else deep snow and ice, \r
-A gulf profound as that Serbonian bog \r
-Betwixt Damiata and Mount Casius old, \r
-Where armies whole have sunk: the parching air \r
-Burns frore, and cold performs th' effect of fire. \r
-Thither, by harpy-footed Furies haled, \r
-At certain revolutions all the damned \r
-Are brought; and feel by turns the bitter change \r
-Of fierce extremes, extremes by change more fierce, \r
-From beds of raging fire to starve in ice \r
-Their soft ethereal warmth, and there to pine \r
-Immovable, infixed, and frozen round \r
-Periods of time,--thence hurried back to fire. \r
-They ferry over this Lethean sound \r
-Both to and fro, their sorrow to augment, \r
-And wish and struggle, as they pass, to reach \r
-The tempting stream, with one small drop to lose \r
-In sweet forgetfulness all pain and woe, \r
-All in one moment, and so near the brink; \r
-But Fate withstands, and, to oppose th' attempt, \r
-Medusa with Gorgonian terror guards \r
-The ford, and of itself the water flies \r
-All taste of living wight, as once it fled \r
-The lip of Tantalus. Thus roving on \r
-In confused march forlorn, th' adventurous bands, \r
-With shuddering horror pale, and eyes aghast, \r
-Viewed first their lamentable lot, and found \r
-No rest. Through many a dark and dreary vale \r
-They passed, and many a region dolorous, \r
-O'er many a frozen, many a fiery alp, \r
-Rocks, caves, lakes, fens, bogs, dens, and shades of death-- \r
-A universe of death, which God by curse \r
-Created evil, for evil only good; \r
-Where all life dies, death lives, and Nature breeds, \r
-Perverse, all monstrous, all prodigious things, \r
-Obominable, inutterable, and worse \r
-Than fables yet have feigned or fear conceived, \r
-Gorgons, and Hydras, and Chimeras dire. \r
- Meanwhile the Adversary of God and Man, \r
-Satan, with thoughts inflamed of highest design, \r
-Puts on swift wings, and toward the gates of Hell \r
-Explores his solitary flight: sometimes \r
-He scours the right hand coast, sometimes the left; \r
-Now shaves with level wing the deep, then soars \r
-Up to the fiery concave towering high. \r
-As when far off at sea a fleet descried \r
-Hangs in the clouds, by equinoctial winds \r
-Close sailing from Bengala, or the isles \r
-Of Ternate and Tidore, whence merchants bring \r
-Their spicy drugs; they on the trading flood, \r
-Through the wide Ethiopian to the Cape, \r
-Ply stemming nightly toward the pole: so seemed \r
-Far off the flying Fiend. At last appear \r
-Hell-bounds, high reaching to the horrid roof, \r
-And thrice threefold the gates; three folds were brass, \r
-Three iron, three of adamantine rock, \r
-Impenetrable, impaled with circling fire, \r
-Yet unconsumed. Before the gates there sat \r
-On either side a formidable Shape. \r
-The one seemed woman to the waist, and fair, \r
-But ended foul in many a scaly fold, \r
-Voluminous and vast--a serpent armed \r
-With mortal sting. About her middle round \r
-A cry of Hell-hounds never-ceasing barked \r
-With wide Cerberean mouths full loud, and rung \r
-A hideous peal; yet, when they list, would creep, \r
-If aught disturbed their noise, into her womb, \r
-And kennel there; yet there still barked and howled \r
-Within unseen. Far less abhorred than these \r
-Vexed Scylla, bathing in the sea that parts \r
-Calabria from the hoarse Trinacrian shore; \r
-Nor uglier follow the night-hag, when, called \r
-In secret, riding through the air she comes, \r
-Lured with the smell of infant blood, to dance \r
-With Lapland witches, while the labouring moon \r
-Eclipses at their charms. The other Shape-- \r
-If shape it might be called that shape had none \r
-Distinguishable in member, joint, or limb; \r
-Or substance might be called that shadow seemed, \r
-For each seemed either--black it stood as Night, \r
-Fierce as ten Furies, terrible as Hell, \r
-And shook a dreadful dart: what seemed his head \r
-The likeness of a kingly crown had on. \r
-Satan was now at hand, and from his seat \r
-The monster moving onward came as fast \r
-With horrid strides; Hell trembled as he strode. \r
-Th' undaunted Fiend what this might be admired-- \r
-Admired, not feared (God and his Son except, \r
-Created thing naught valued he nor shunned), \r
-And with disdainful look thus first began:-- \r
- "Whence and what art thou, execrable Shape, \r
-That dar'st, though grim and terrible, advance \r
-Thy miscreated front athwart my way \r
-To yonder gates? Through them I mean to pass, \r
-That be assured, without leave asked of thee. \r
-Retire; or taste thy folly, and learn by proof, \r
-Hell-born, not to contend with Spirits of Heaven." \r
- To whom the Goblin, full of wrath, replied:-- \r
-"Art thou that traitor Angel? art thou he, \r
-Who first broke peace in Heaven and faith, till then \r
-Unbroken, and in proud rebellious arms \r
-Drew after him the third part of Heaven's sons, \r
-Conjured against the Highest--for which both thou \r
-And they, outcast from God, are here condemned \r
-To waste eternal days in woe and pain? \r
-And reckon'st thou thyself with Spirits of Heaven \r
-Hell-doomed, and breath'st defiance here and scorn, \r
-Where I reign king, and, to enrage thee more, \r
-Thy king and lord? Back to thy punishment, \r
-False fugitive; and to thy speed add wings, \r
-Lest with a whip of scorpions I pursue \r
-Thy lingering, or with one stroke of this dart \r
-Strange horror seize thee, and pangs unfelt before." \r
- So spake the grisly Terror, and in shape, \r
-So speaking and so threatening, grew tenfold, \r
-More dreadful and deform. On th' other side, \r
-Incensed with indignation, Satan stood \r
-Unterrified, and like a comet burned, \r
-That fires the length of Ophiuchus huge \r
-In th' arctic sky, and from his horrid hair \r
-Shakes pestilence and war. Each at the head \r
-Levelled his deadly aim; their fatal hands \r
-No second stroke intend; and such a frown \r
-Each cast at th' other as when two black clouds, \r
-With heaven's artillery fraught, came rattling on \r
-Over the Caspian,--then stand front to front \r
-Hovering a space, till winds the signal blow \r
-To join their dark encounter in mid-air. \r
-So frowned the mighty combatants that Hell \r
-Grew darker at their frown; so matched they stood; \r
-For never but once more was wither like \r
-To meet so great a foe. And now great deeds \r
-Had been achieved, whereof all Hell had rung, \r
-Had not the snaky Sorceress, that sat \r
-Fast by Hell-gate and kept the fatal key, \r
-Risen, and with hideous outcry rushed between. \r
- "O father, what intends thy hand," she cried, \r
-"Against thy only son? What fury, O son, \r
-Possesses thee to bend that mortal dart \r
-Against thy father's head? And know'st for whom? \r
-For him who sits above, and laughs the while \r
-At thee, ordained his drudge to execute \r
-Whate'er his wrath, which he calls justice, bids-- \r
-His wrath, which one day will destroy ye both!" \r
- She spake, and at her words the hellish Pest \r
-Forbore: then these to her Satan returned:-- \r
- "So strange thy outcry, and thy words so strange \r
-Thou interposest, that my sudden hand, \r
-Prevented, spares to tell thee yet by deeds \r
-What it intends, till first I know of thee \r
-What thing thou art, thus double-formed, and why, \r
-In this infernal vale first met, thou call'st \r
-Me father, and that phantasm call'st my son. \r
-I know thee not, nor ever saw till now \r
-Sight more detestable than him and thee." \r
- T' whom thus the Portress of Hell-gate replied:-- \r
-"Hast thou forgot me, then; and do I seem \r
-Now in thine eye so foul?--once deemed so fair \r
-In Heaven, when at th' assembly, and in sight \r
-Of all the Seraphim with thee combined \r
-In bold conspiracy against Heaven's King, \r
-All on a sudden miserable pain \r
-Surprised thee, dim thine eyes and dizzy swum \r
-In darkness, while thy head flames thick and fast \r
-Threw forth, till on the left side opening wide, \r
-Likest to thee in shape and countenance bright, \r
-Then shining heavenly fair, a goddess armed, \r
-Out of thy head I sprung. Amazement seized \r
-All th' host of Heaven; back they recoiled afraid \r
-At first, and called me Sin, and for a sign \r
-Portentous held me; but, familiar grown, \r
-I pleased, and with attractive graces won \r
-The most averse--thee chiefly, who, full oft \r
-Thyself in me thy perfect image viewing, \r
-Becam'st enamoured; and such joy thou took'st \r
-With me in secret that my womb conceived \r
-A growing burden. Meanwhile war arose, \r
-And fields were fought in Heaven: wherein remained \r
-(For what could else?) to our Almighty Foe \r
-Clear victory; to our part loss and rout \r
-Through all the Empyrean. Down they fell, \r
-Driven headlong from the pitch of Heaven, down \r
-Into this Deep; and in the general fall \r
-I also: at which time this powerful key \r
-Into my hands was given, with charge to keep \r
-These gates for ever shut, which none can pass \r
-Without my opening. Pensive here I sat \r
-Alone; but long I sat not, till my womb, \r
-Pregnant by thee, and now excessive grown, \r
-Prodigious motion felt and rueful throes. \r
-At last this odious offspring whom thou seest, \r
-Thine own begotten, breaking violent way, \r
-Tore through my entrails, that, with fear and pain \r
-Distorted, all my nether shape thus grew \r
-Transformed: but he my inbred enemy \r
-Forth issued, brandishing his fatal dart, \r
-Made to destroy. I fled, and cried out Death! \r
-Hell trembled at the hideous name, and sighed \r
-From all her caves, and back resounded Death! \r
-I fled; but he pursued (though more, it seems, \r
-Inflamed with lust than rage), and, swifter far, \r
-Me overtook, his mother, all dismayed, \r
-And, in embraces forcible and foul \r
-Engendering with me, of that rape begot \r
-These yelling monsters, that with ceaseless cry \r
-Surround me, as thou saw'st--hourly conceived \r
-And hourly born, with sorrow infinite \r
-To me; for, when they list, into the womb \r
-That bred them they return, and howl, and gnaw \r
-My bowels, their repast; then, bursting forth \r
-Afresh, with conscious terrors vex me round, \r
-That rest or intermission none I find. \r
-Before mine eyes in opposition sits \r
-Grim Death, my son and foe, who set them on, \r
-And me, his parent, would full soon devour \r
-For want of other prey, but that he knows \r
-His end with mine involved, and knows that I \r
-Should prove a bitter morsel, and his bane, \r
-Whenever that shall be: so Fate pronounced. \r
-But thou, O father, I forewarn thee, shun \r
-His deadly arrow; neither vainly hope \r
-To be invulnerable in those bright arms, \r
-Through tempered heavenly; for that mortal dint, \r
-Save he who reigns above, none can resist." \r
- She finished; and the subtle Fiend his lore \r
-Soon learned, now milder, and thus answered smooth:-- \r
- "Dear daughter--since thou claim'st me for thy sire, \r
-And my fair son here show'st me, the dear pledge \r
-Of dalliance had with thee in Heaven, and joys \r
-Then sweet, now sad to mention, through dire change \r
-Befallen us unforeseen, unthought-of--know, \r
-I come no enemy, but to set free \r
-From out this dark and dismal house of pain \r
-Both him and thee, and all the heavenly host \r
-Of Spirits that, in our just pretences armed, \r
-Fell with us from on high. From them I go \r
-This uncouth errand sole, and one for all \r
-Myself expose, with lonely steps to tread \r
-Th' unfounded Deep, and through the void immense \r
-To search, with wandering quest, a place foretold \r
-Should be--and, by concurring signs, ere now \r
-Created vast and round--a place of bliss \r
-In the purlieus of Heaven; and therein placed \r
-A race of upstart creatures, to supply \r
-Perhaps our vacant room, though more removed, \r
-Lest Heaven, surcharged with potent multitude, \r
-Might hap to move new broils. Be this, or aught \r
-Than this more secret, now designed, I haste \r
-To know; and, this once known, shall soon return, \r
-And bring ye to the place where thou and Death \r
-Shall dwell at ease, and up and down unseen \r
-Wing silently the buxom air, embalmed \r
-With odours. There ye shall be fed and filled \r
-Immeasurably; all things shall be your prey." \r
- He ceased; for both seemed highly pleased, and Death \r
-Grinned horrible a ghastly smile, to hear \r
-His famine should be filled, and blessed his maw \r
-Destined to that good hour. No less rejoiced \r
-His mother bad, and thus bespake her sire:-- \r
- "The key of this infernal Pit, by due \r
-And by command of Heaven's all-powerful King, \r
-I keep, by him forbidden to unlock \r
-These adamantine gates; against all force \r
-Death ready stands to interpose his dart, \r
-Fearless to be o'ermatched by living might. \r
-But what owe I to his commands above, \r
-Who hates me, and hath hither thrust me down \r
-Into this gloom of Tartarus profound, \r
-To sit in hateful office here confined, \r
-Inhabitant of Heaven and heavenly born-- \r
-Here in perpetual agony and pain, \r
-With terrors and with clamours compassed round \r
-Of mine own brood, that on my bowels feed? \r
-Thou art my father, thou my author, thou \r
-My being gav'st me; whom should I obey \r
-But thee? whom follow? Thou wilt bring me soon \r
-To that new world of light and bliss, among \r
-The gods who live at ease, where I shall reign \r
-At thy right hand voluptuous, as beseems \r
-Thy daughter and thy darling, without end." \r
- Thus saying, from her side the fatal key, \r
-Sad instrument of all our woe, she took; \r
-And, towards the gate rolling her bestial train, \r
-Forthwith the huge portcullis high up-drew, \r
-Which, but herself, not all the Stygian Powers \r
-Could once have moved; then in the key-hole turns \r
-Th' intricate wards, and every bolt and bar \r
-Of massy iron or solid rock with ease \r
-Unfastens. On a sudden open fly, \r
-With impetuous recoil and jarring sound, \r
-Th' infernal doors, and on their hinges grate \r
-Harsh thunder, that the lowest bottom shook \r
-Of Erebus. She opened; but to shut \r
-Excelled her power: the gates wide open stood, \r
-That with extended wings a bannered host, \r
-Under spread ensigns marching, mibht pass through \r
-With horse and chariots ranked in loose array; \r
-So wide they stood, and like a furnace-mouth \r
-Cast forth redounding smoke and ruddy flame. \r
-Before their eyes in sudden view appear \r
-The secrets of the hoary Deep--a dark \r
-Illimitable ocean, without bound, \r
-Without dimension; where length, breadth, and height, \r
-And time, and place, are lost; where eldest Night \r
-And Chaos, ancestors of Nature, hold \r
-Eternal anarchy, amidst the noise \r
-Of endless wars, and by confusion stand. \r
-For Hot, Cold, Moist, and Dry, four champions fierce, \r
-Strive here for mastery, and to battle bring \r
-Their embryon atoms: they around the flag \r
-Of each his faction, in their several clans, \r
-Light-armed or heavy, sharp, smooth, swift, or slow, \r
-Swarm populous, unnumbered as the sands \r
-Of Barca or Cyrene's torrid soil, \r
-Levied to side with warring winds, and poise \r
-Their lighter wings. To whom these most adhere \r
-He rules a moment: Chaos umpire sits, \r
-And by decision more embroils the fray \r
-By which he reigns: next him, high arbiter, \r
-Chance governs all. Into this wild Abyss, \r
-The womb of Nature, and perhaps her grave, \r
-Of neither sea, nor shore, nor air, nor fire, \r
-But all these in their pregnant causes mixed \r
-Confusedly, and which thus must ever fight, \r
-Unless th' Almighty Maker them ordain \r
-His dark materials to create more worlds-- \r
-Into this wild Abyss the wary Fiend \r
-Stood on the brink of Hell and looked a while, \r
-Pondering his voyage; for no narrow frith \r
-He had to cross. Nor was his ear less pealed \r
-With noises loud and ruinous (to compare \r
-Great things with small) than when Bellona storms \r
-With all her battering engines, bent to rase \r
-Some capital city; or less than if this frame \r
-Of Heaven were falling, and these elements \r
-In mutiny had from her axle torn \r
-The steadfast Earth. At last his sail-broad vans \r
-He spread for flight, and, in the surging smoke \r
-Uplifted, spurns the ground; thence many a league, \r
-As in a cloudy chair, ascending rides \r
-Audacious; but, that seat soon failing, meets \r
-A vast vacuity. All unawares, \r
-Fluttering his pennons vain, plumb-down he drops \r
-Ten thousand fathom deep, and to this hour \r
-Down had been falling, had not, by ill chance, \r
-The strong rebuff of some tumultuous cloud, \r
-Instinct with fire and nitre, hurried him \r
-As many miles aloft. That fury stayed-- \r
-Quenched in a boggy Syrtis, neither sea, \r
-Nor good dry land--nigh foundered, on he fares, \r
-Treading the crude consistence, half on foot, \r
-Half flying; behoves him now both oar and sail. \r
-As when a gryphon through the wilderness \r
-With winged course, o'er hill or moory dale, \r
-Pursues the Arimaspian, who by stealth \r
-Had from his wakeful custody purloined \r
-The guarded gold; so eagerly the Fiend \r
-O'er bog or steep, through strait, rough, dense, or rare, \r
-With head, hands, wings, or feet, pursues his way, \r
-And swims, or sinks, or wades, or creeps, or flies. \r
-At length a universal hubbub wild \r
-Of stunning sounds, and voices all confused, \r
-Borne through the hollow dark, assaults his ear \r
-With loudest vehemence. Thither he plies \r
-Undaunted, to meet there whatever Power \r
-Or Spirit of the nethermost Abyss \r
-Might in that noise reside, of whom to ask \r
-Which way the nearest coast of darkness lies \r
-Bordering on light; when straight behold the throne \r
-Of Chaos, and his dark pavilion spread \r
-Wide on the wasteful Deep! With him enthroned \r
-Sat sable-vested Night, eldest of things, \r
-The consort of his reign; and by them stood \r
-Orcus and Ades, and the dreaded name \r
-Of Demogorgon; Rumour next, and Chance, \r
-And Tumult, and Confusion, all embroiled, \r
-And Discord with a thousand various mouths. \r
- T' whom Satan, turning boldly, thus:--"Ye Powers \r
-And Spirtis of this nethermost Abyss, \r
-Chaos and ancient Night, I come no spy \r
-With purpose to explore or to disturb \r
-The secrets of your realm; but, by constraint \r
-Wandering this darksome desert, as my way \r
-Lies through your spacious empire up to light, \r
-Alone and without guide, half lost, I seek, \r
-What readiest path leads where your gloomy bounds \r
-Confine with Heaven; or, if some other place, \r
-From your dominion won, th' Ethereal King \r
-Possesses lately, thither to arrive \r
-I travel this profound. Direct my course: \r
-Directed, no mean recompense it brings \r
-To your behoof, if I that region lost, \r
-All usurpation thence expelled, reduce \r
-To her original darkness and your sway \r
-(Which is my present journey), and once more \r
-Erect the standard there of ancient Night. \r
-Yours be th' advantage all, mine the revenge!" \r
- Thus Satan; and him thus the Anarch old, \r
-With faltering speech and visage incomposed, \r
-Answered: "I know thee, stranger, who thou art-- *** \r
-That mighty leading Angel, who of late \r
-Made head against Heaven's King, though overthrown. \r
-I saw and heard; for such a numerous host \r
-Fled not in silence through the frighted Deep, \r
-With ruin upon ruin, rout on rout, \r
-Confusion worse confounded; and Heaven-gates \r
-Poured out by millions her victorious bands, \r
-Pursuing. I upon my frontiers here \r
-Keep residence; if all I can will serve \r
-That little which is left so to defend, \r
-Encroached on still through our intestine broils \r
-Weakening the sceptre of old Night: first, Hell, \r
-Your dungeon, stretching far and wide beneath; \r
-Now lately Heaven and Earth, another world \r
-Hung o'er my realm, linked in a golden chain \r
-To that side Heaven from whence your legions fell! \r
-If that way be your walk, you have not far; \r
-So much the nearer danger. Go, and speed; \r
-Havoc, and spoil, and ruin, are my gain." \r
- He ceased; and Satan stayed not to reply, \r
-But, glad that now his sea should find a shore, \r
-With fresh alacrity and force renewed \r
-Springs upward, like a pyramid of fire, \r
-Into the wild expanse, and through the shock \r
-Of fighting elements, on all sides round \r
-Environed, wins his way; harder beset \r
-And more endangered than when Argo passed \r
-Through Bosporus betwixt the justling rocks, \r
-Or when Ulysses on the larboard shunned \r
-Charybdis, and by th' other whirlpool steered. \r
-So he with difficulty and labour hard \r
-Moved on, with difficulty and labour he; \r
-But, he once passed, soon after, when Man fell, \r
-Strange alteration! Sin and Death amain, \r
-Following his track (such was the will of Heaven) \r
-Paved after him a broad and beaten way \r
-Over the dark Abyss, whose boiling gulf \r
-Tamely endured a bridge of wondrous length, \r
-From Hell continued, reaching th' utmost orb \r
-Of this frail World; by which the Spirits perverse \r
-With easy intercourse pass to and fro \r
-To tempt or punish mortals, except whom \r
-God and good Angels guard by special grace. \r
- But now at last the sacred influence \r
-Of light appears, and from the walls of Heaven \r
-Shoots far into the bosom of dim Night \r
-A glimmering dawn. Here Nature first begins \r
-Her farthest verge, and Chaos to retire, \r
-As from her outmost works, a broken foe, \r
-With tumult less and with less hostile din; \r
-That Satan with less toil, and now with ease, \r
-Wafts on the calmer wave by dubious light, \r
-And, like a weather-beaten vessel, holds \r
-Gladly the port, though shrouds and tackle torn; \r
-Or in the emptier waste, resembling air, \r
-Weighs his spread wings, at leisure to behold \r
-Far off th' empyreal Heaven, extended wide \r
-In circuit, undetermined square or round, \r
-With opal towers and battlements adorned \r
-Of living sapphire, once his native seat; \r
-And, fast by, hanging in a golden chain, \r
-This pendent World, in bigness as a star \r
-Of smallest magnitude close by the moon. \r
-Thither, full fraught with mischievous revenge, \r
-Accursed, and in a cursed hour, he hies. \r
- \r
- \r
- \r
-Book III \r
- \r
- \r
-Hail, holy Light, offspring of Heaven firstborn, \r
-Or of the Eternal coeternal beam \r
-May I express thee unblam'd? since God is light, \r
-And never but in unapproached light \r
-Dwelt from eternity, dwelt then in thee \r
-Bright effluence of bright essence increate. \r
-Or hear"st thou rather pure ethereal stream, \r
-Whose fountain who shall tell? before the sun, \r
-Before the Heavens thou wert, and at the voice \r
-Of God, as with a mantle, didst invest *** \r
-The rising world of waters dark and deep, \r
-Won from the void and formless infinite. \r
-Thee I re-visit now with bolder wing, \r
-Escap'd the Stygian pool, though long detain'd \r
-In that obscure sojourn, while in my flight \r
-Through utter and through middle darkness borne, \r
-With other notes than to the Orphean lyre \r
-I sung of Chaos and eternal Night; \r
-Taught by the heavenly Muse to venture down \r
-The dark descent, and up to re-ascend, \r
-Though hard and rare: Thee I revisit safe, \r
-And feel thy sovran vital lamp; but thou \r
-Revisit'st not these eyes, that roll in vain \r
-To find thy piercing ray, and find no dawn; \r
-So thick a drop serene hath quench'd their orbs, \r
-Or dim suffusion veil'd. Yet not the more \r
-Cease I to wander, where the Muses haunt, \r
-Clear spring, or shady grove, or sunny hill, \r
-Smit with the love of sacred song; but chief \r
-Thee, Sion, and the flowery brooks beneath, \r
-That wash thy hallow'd feet, and warbling flow, \r
-Nightly I visit: nor sometimes forget \r
-So were I equall'd with them in renown, \r
-Thy sovran command, that Man should find grace; \r
-Blind Thamyris, and blind Maeonides, \r
-And Tiresias, and Phineus, prophets old: \r
-Then feed on thoughts, that voluntary move \r
-Harmonious numbers; as the wakeful bird \r
-Sings darkling, and in shadiest covert hid \r
-Tunes her nocturnal note. Thus with the year \r
-Seasons return; but not to me returns \r
-Day, or the sweet approach of even or morn, \r
-Or sight of vernal bloom, or summer's rose, \r
-Or flocks, or herds, or human face divine; \r
-But cloud instead, and ever-during dark \r
-Surrounds me, from the cheerful ways of men \r
-Cut off, and for the book of knowledge fair \r
-Presented with a universal blank \r
-Of nature's works to me expung'd and ras'd, \r
-And wisdom at one entrance quite shut out. \r
-So much the rather thou, celestial Light, \r
-Shine inward, and the mind through all her powers \r
-Irradiate; there plant eyes, all mist from thence \r
-Purge and disperse, that I may see and tell \r
-Of things invisible to mortal sight. \r
-Now had the Almighty Father from above, \r
-From the pure empyrean where he sits \r
-High thron'd above all highth, bent down his eye \r
-His own works and their works at once to view: \r
-About him all the Sanctities of Heaven \r
-Stood thick as stars, and from his sight receiv'd \r
-Beatitude past utterance; on his right \r
-The radiant image of his glory sat, \r
-His only son; on earth he first beheld \r
-Our two first parents, yet the only two \r
-Of mankind in the happy garden plac'd \r
-Reaping immortal fruits of joy and love, \r
-Uninterrupted joy, unrivall'd love, \r
-In blissful solitude; he then survey'd \r
-Hell and the gulf between, and Satan there \r
-Coasting the wall of Heaven on this side Night \r
-In the dun air sublime, and ready now \r
-To stoop with wearied wings, and willing feet, \r
-On the bare outside of this world, that seem'd \r
-Firm land imbosom'd, without firmament, \r
-Uncertain which, in ocean or in air. \r
-Him God beholding from his prospect high, \r
-Wherein past, present, future, he beholds, \r
-Thus to his only Son foreseeing spake. \r
-Only begotten Son, seest thou what rage \r
-Transports our Adversary? whom no bounds \r
-Prescrib'd no bars of Hell, nor all the chains \r
-Heap'd on him there, nor yet the main abyss \r
-Wide interrupt, can hold; so bent he seems \r
-On desperate revenge, that shall redound \r
-Upon his own rebellious head. And now, \r
-Through all restraint broke loose, he wings his way \r
-Not far off Heaven, in the precincts of light, \r
-Directly towards the new created world, \r
-And man there plac'd, with purpose to assay \r
-If him by force he can destroy, or, worse, \r
-By some false guile pervert; and shall pervert; \r
-For man will hearken to his glozing lies, \r
-And easily transgress the sole command, \r
-Sole pledge of his obedience: So will fall \r
-He and his faithless progeny: Whose fault? \r
-Whose but his own? ingrate, he had of me \r
-All he could have; I made him just and right, \r
-Sufficient to have stood, though free to fall. \r
-Such I created all the ethereal Powers \r
-And Spirits, both them who stood, and them who fail'd; \r
-Freely they stood who stood, and fell who fell. \r
-Not free, what proof could they have given sincere \r
-Of true allegiance, constant faith or love, \r
-Where only what they needs must do appear'd, \r
-Not what they would? what praise could they receive? \r
-What pleasure I from such obedience paid, \r
-When will and reason (reason also is choice) \r
-Useless and vain, of freedom both despoil'd, \r
-Made passive both, had serv'd necessity, \r
-Not me? they therefore, as to right belong$ 'd, \r
-So were created, nor can justly accuse \r
-Their Maker, or their making, or their fate, \r
-As if predestination over-rul'd \r
-Their will dispos'd by absolute decree \r
-Or high foreknowledge they themselves decreed \r
-Their own revolt, not I; if I foreknew, \r
-Foreknowledge had no influence on their fault, \r
-Which had no less proved certain unforeknown. \r
-So without least impulse or shadow of fate, \r
-Or aught by me immutably foreseen, \r
-They trespass, authors to themselves in all \r
-Both what they judge, and what they choose; for so \r
-I form'd them free: and free they must remain, \r
-Till they enthrall themselves; I else must change \r
-Their nature, and revoke the high decree \r
-Unchangeable, eternal, which ordain'd \r
-$THeir freedom: they themselves ordain'd their fall. \r
-The first sort by their own suggestion fell, \r
-Self-tempted, self-deprav'd: Man falls, deceiv'd \r
-By the other first: Man therefore shall find grace, \r
-The other none: In mercy and justice both, \r
-Through Heaven and Earth, so shall my glory excel; \r
-But Mercy, first and last, shall brightest shine. \r
-Thus while God spake, ambrosial fragrance fill'd \r
-All Heaven, and in the blessed Spirits elect \r
-Sense of new joy ineffable diffus'd. \r
-Beyond compare the Son of God was seen \r
-Most glorious; in him all his Father shone \r
-Substantially express'd; and in his face \r
-Divine compassion visibly appear'd, \r
-Love without end, and without measure grace, \r
-Which uttering, thus he to his Father spake. \r
-O Father, gracious was that word which clos'd \r
-Thy sovran command, that Man should find grace; \r
-, that Man should find grace; \r
-For which both Heaven and earth shall high extol \r
-Thy praises, with the innumerable sound \r
-Of hymns and sacred songs, wherewith thy throne \r
-Encompass'd shall resound thee ever blest. \r
-For should Man finally be lost, should Man, \r
-Thy creature late so lov'd, thy youngest son, \r
-Fall circumvented thus by fraud, though join'd \r
-With his own folly? that be from thee far, \r
-That far be from thee, Father, who art judge \r
-Of all things made, and judgest only right. \r
-Or shall the Adversary thus obtain \r
-His end, and frustrate thine? shall he fulfill \r
-His malice, and thy goodness bring to nought, \r
-Or proud return, though to his heavier doom, \r
-Yet with revenge accomplish'd, and to Hell \r
-Draw after him the whole race of mankind, \r
-By him corrupted? or wilt thou thyself \r
-Abolish thy creation, and unmake \r
-For him, what for thy glory thou hast made? \r
-So should thy goodness and thy greatness both \r
-Be question'd and blasphem'd without defence. \r
-To whom the great Creator thus replied. \r
-O son, in whom my soul hath chief delight, \r
-Son of my bosom, Son who art alone. \r
-My word, my wisdom, and effectual might, \r
-All hast thou spoken as my thoughts are, all \r
-As my eternal purpose hath decreed; \r
-Man shall not quite be lost, but sav'd who will; \r
-Yet not of will in him, but grace in me \r
-Freely vouchsaf'd; once more I will renew \r
-His lapsed powers, though forfeit; and enthrall'd \r
-By sin to foul exorbitant desires; \r
-Upheld by me, yet once more he shall stand \r
-On even ground against his mortal foe; \r
-By me upheld, that he may know how frail \r
-His fallen condition is, and to me owe \r
-All his deliverance, and to none but me. \r
-Some I have chosen of peculiar grace, \r
-Elect above the rest; so is my will: \r
-The rest shall hear me call, and oft be warn'd \r
-Their sinful state, and to appease betimes \r
-The incensed Deity, while offer'd grace \r
-Invites; for I will clear their senses dark, \r
-What may suffice, and soften stony hearts \r
-To pray, repent, and bring obedience due. \r
-To prayer, repentance, and obedience due, \r
-Though but endeavour'd with sincere intent, \r
-Mine ear shall not be slow, mine eye not shut. \r
-And I will place within them as a guide, \r
-My umpire Conscience; whom if they will hear, \r
-Light after light, well us'd, they shall attain, \r
-And to the end, persisting, safe arrive. \r
-This my long sufferance, and my day of grace, \r
-They who neglect and scorn, shall never taste; \r
-But hard be harden'd, blind be blinded more, \r
-That they may stumble on, and deeper fall; \r
-And none but such from mercy I exclude. \r
-But yet all is not done; Man disobeying, \r
-Disloyal, breaks his fealty, and sins \r
-Against the high supremacy of Heaven, \r
-Affecting God-head, and, so losing all, \r
-To expiate his treason hath nought left, \r
-But to destruction sacred and devote, \r
-He, with his whole posterity, must die, \r
-Die he or justice must; unless for him \r
-Some other able, and as willing, pay \r
-The rigid satisfaction, death for death. \r
-Say, heavenly Powers, where shall we find such love? \r
-Which of you will be mortal, to redeem \r
-Man's mortal crime, and just the unjust to save? \r
-Dwells in all Heaven charity so dear? \r
-And silence was in Heaven: $ on Man's behalf \r
-He ask'd, but all the heavenly quire stood mute, \r
-Patron or intercessour none appear'd, \r
-Much less that durst upon his own head draw \r
-The deadly forfeiture, and ransom set. \r
-And now without redemption all mankind \r
-Must have been lost, adjudg'd to Death and Hell \r
-By doom severe, had not the Son of God, \r
-In whom the fulness dwells of love divine, \r
-His dearest mediation thus renew'd. \r
-Father, thy word is past, Man shall find grace; \r
-And shall grace not find means, that finds her way, \r
-The speediest of thy winged messengers, \r
-To visit all thy creatures, and to all \r
-Comes unprevented, unimplor'd, unsought? \r
-Happy for Man, so coming; he her aid \r
-Can never seek, once dead in sins, and lost; \r
-Atonement for himself, or offering meet, \r
-Indebted and undone, hath none to bring; \r
-Behold me then: me for him, life for life \r
-I offer: on me let thine anger fall; \r
-Account me Man; I for his sake will leave \r
- Thy bosom, and this glory next to thee \r
- Freely put off, and for him lastly die \r
- Well pleased; on me let Death wreak all his rage. \r
- Under his gloomy power I shall not long \r
- Lie vanquished. Thou hast given me to possess \r
- Life in myself for ever; by thee I live; \r
- Though now to Death I yield, and am his due, \r
- All that of me can die, yet, that debt paid, \r
- $ thou wilt not leave me in the loathsome grave \r
- His prey, nor suffer my unspotted soul \r
- For ever with corruption there to dwell; \r
- But I shall rise victorious, and subdue \r
- My vanquisher, spoiled of his vaunted spoil. \r
- Death his death's wound shall then receive, and stoop \r
- Inglorious, of his mortal sting disarmed; \r
- I through the ample air in triumph high \r
- Shall lead Hell captive maugre Hell, and show \r
-The powers of darkness bound. Thou, at the sight \r
- Pleased, out of Heaven shalt look down and smile, \r
- While, by thee raised, I ruin all my foes; \r
- Death last, and with his carcase glut the grave; \r
- Then, with the multitude of my redeemed, \r
- Shall enter Heaven, long absent, and return, \r
- Father, to see thy face, wherein no cloud \r
- Of anger shall remain, but peace assured \r
- And reconcilement: wrath shall be no more \r
- Thenceforth, but in thy presence joy entire. \r
- His words here ended; but his meek aspect \r
- Silent yet spake, and breathed immortal love \r
- To mortal men, above which only shone \r
- Filial obedience: as a sacrifice \r
- Glad to be offered, he attends the will \r
- Of his great Father. Admiration seized \r
- All Heaven, what this might mean, and whither tend, \r
- Wondering; but soon th' Almighty thus replied. \r
- O thou in Heaven and Earth the only peace \r
- Found out for mankind under wrath, O thou \r
- My sole complacence! Well thou know'st how dear \r
- To me are all my works; nor Man the least, \r
- Though last created, that for him I spare \r
- Thee from my bosom and right hand, to save, \r
- By losing thee a while, the whole race lost. \r
- \r
- 00021053 \r
- Thou, therefore, whom thou only canst redeem, \r
- Their nature also to thy nature join; \r
- And be thyself Man among men on Earth, \r
- Made flesh, when time shall be, of virgin seed, \r
- By wondrous birth; be thou in Adam's room \r
-The head of all mankind, though Adam's son. \r
-As in him perish all men, so in thee, \r
-As from a second root, shall be restored \r
-As many as are restored, without thee none. \r
-His crime makes guilty all his sons; thy merit, \r
-Imputed, shall absolve them who renounce \r
-Their own both righteous and unrighteous deeds, \r
-And live in thee transplanted, and from thee \r
-Receive new life. So Man, as is most just, \r
-Shall satisfy for Man, be judged and die, \r
-And dying rise, and rising with him raise \r
-His brethren, ransomed with his own dear life. \r
-So heavenly love shall outdo hellish hate, \r
-Giving to death, and dying to redeem, \r
-So dearly to redeem what hellish hate \r
-So easily destroyed, and still destroys \r
-In those who, when they may, accept not grace. \r
-Nor shalt thou, by descending to assume \r
-Man's nature, lessen or degrade thine own. \r
-Because thou hast, though throned in highest bliss \r
-Equal to God, and equally enjoying \r
-God-like fruition, quitted all, to save \r
-A world from utter loss, and hast been found \r
-By merit more than birthright Son of God, \r
-Found worthiest to be so by being good, \r
-Far more than great or high; because in thee \r
-Love hath abounded more than glory abounds; \r
-Therefore thy humiliation shall exalt \r
-With thee thy manhood also to this throne: \r
-Here shalt thou sit incarnate, here shalt reign \r
-Both God and Man, Son both of God and Man, \r
-Anointed universal King; all power \r
-I give thee; reign for ever, and assume \r
-Thy merits; under thee, as head supreme, \r
-Thrones, Princedoms, Powers, Dominions, I reduce: \r
-All knees to thee shall bow, of them that bide \r
-In Heaven, or Earth, or under Earth in Hell. \r
-When thou, attended gloriously from Heaven, \r
-Shalt in the sky appear, and from thee send \r
-The summoning Arch-Angels to proclaim \r
-Thy dread tribunal; forthwith from all winds, \r
-The living, and forthwith the cited dead \r
-Of all past ages, to the general doom \r
-Shall hasten; such a peal shall rouse their sleep. \r
-Then, all thy saints assembled, thou shalt judge \r
-Bad Men and Angels; they, arraigned, shall sink \r
-Beneath thy sentence; Hell, her numbers full, \r
-Thenceforth shall be for ever shut. Mean while \r
-The world shall burn, and from her ashes spring \r
-New Heaven and Earth, wherein the just shall dwell, \r
-And, after all their tribulations long, \r
-See golden days, fruitful of golden deeds, \r
-With joy and peace triumphing, and fair truth. \r
-Then thou thy regal scepter shalt lay by, \r
-For regal scepter then no more shall need, \r
-God shall be all in all. But, all ye Gods, \r
-Adore him, who to compass all this dies; \r
-Adore the Son, and honour him as me. \r
-No sooner had the Almighty ceased, but all \r
-The multitude of Angels, with a shout \r
-Loud as from numbers without number, sweet \r
-As from blest voices, uttering joy, Heaven rung \r
-With jubilee, and loud Hosannas filled \r
-The eternal regions: Lowly reverent \r
-Towards either throne they bow, and to the ground \r
-With solemn adoration down they cast \r
-Their crowns inwove with amarant and gold; \r
-Immortal amarant, a flower which once \r
-In Paradise, fast by the tree of life, \r
-Began to bloom; but soon for man's offence \r
-To Heaven removed, where first it grew, there grows, \r
-And flowers aloft shading the fount of life, \r
-And where the river of bliss through midst of Heaven \r
-Rolls o'er Elysian flowers her amber stream; \r
-With these that never fade the Spirits elect \r
-Bind their resplendent locks inwreathed with beams; \r
-Now in loose garlands thick thrown off, the bright \r
-Pavement, that like a sea of jasper shone, \r
-Impurpled with celestial roses smiled. \r
-Then, crowned again, their golden harps they took, \r
-Harps ever tuned, that glittering by their side \r
-Like quivers hung, and with preamble sweet \r
-Of charming symphony they introduce \r
-Their sacred song, and waken raptures high; \r
-No voice exempt, no voice but well could join \r
-Melodious part, such concord is in Heaven. \r
-Thee, Father, first they sung Omnipotent, \r
-Immutable, Immortal, Infinite, \r
-Eternal King; the Author of all being, \r
-Fonntain of light, thyself invisible \r
-Amidst the glorious brightness where thou sit'st \r
-Throned inaccessible, but when thou shadest \r
-The full blaze of thy beams, and, through a cloud \r
-Drawn round about thee like a radiant shrine, \r
-Dark with excessive bright thy skirts appear, \r
-Yet dazzle Heaven, that brightest Seraphim \r
-Approach not, but with both wings veil their eyes. \r
-Thee next they sang of all creation first, \r
-Begotten Son, Divine Similitude, \r
-In whose conspicuous countenance, without cloud \r
-Made visible, the Almighty Father shines, \r
-Whom else no creature can behold; on thee \r
-Impressed the effulgence of his glory abides, \r
-Transfused on thee his ample Spirit rests. \r
-He Heaven of Heavens and all the Powers therein \r
-By thee created; and by thee threw down \r
-The aspiring Dominations: Thou that day \r
-Thy Father's dreadful thunder didst not spare, \r
-Nor stop thy flaming chariot-wheels, that shook \r
-Heaven's everlasting frame, while o'er the necks \r
-Thou drovest of warring Angels disarrayed. \r
-Back from pursuit thy Powers with loud acclaim \r
-Thee only extolled, Son of thy Father's might, \r
-To execute fierce vengeance on his foes, \r
-Not so on Man: Him through their malice fallen, \r
-Father of mercy and grace, thou didst not doom \r
-So strictly, but much more to pity incline: \r
-No sooner did thy dear and only Son \r
-Perceive thee purposed not to doom frail Man \r
-So strictly, but much more to pity inclined, \r
-He to appease thy wrath, and end the strife \r
-Of mercy and justice in thy face discerned, \r
-Regardless of the bliss wherein he sat \r
-Second to thee, offered himself to die \r
-For Man's offence. O unexampled love, \r
-Love no where to be found less than Divine! \r
-Hail, Son of God, Saviour of Men! Thy name \r
-Shall be the copious matter of my song \r
-Henceforth, and never shall my heart thy praise \r
-Forget, nor from thy Father's praise disjoin. \r
-Thus they in Heaven, above the starry sphere, \r
-Their happy hours in joy and hymning spent. \r
-Mean while upon the firm opacous globe \r
-Of this round world, whose first convex divides \r
-The luminous inferiour orbs, enclosed \r
-From Chaos, and the inroad of Darkness old, \r
-Satan alighted walks: A globe far off \r
-It seemed, now seems a boundless continent \r
-Dark, waste, and wild, under the frown of Night \r
-Starless exposed, and ever-threatening storms \r
-Of Chaos blustering round, inclement sky; \r
-Save on that side which from the wall of Heaven, \r
-Though distant far, some small reflection gains \r
-Of glimmering air less vexed with tempest loud: \r
-Here walked the Fiend at large in spacious field. \r
-As when a vultur on Imaus bred, \r
-Whose snowy ridge the roving Tartar bounds, \r
-Dislodging from a region scarce of prey \r
-To gorge the flesh of lambs or yeanling kids, \r
-On hills where flocks are fed, flies toward the springs \r
-Of Ganges or Hydaspes, Indian streams; \r
-But in his way lights on the barren plains \r
-Of Sericana, where Chineses drive \r
-With sails and wind their cany waggons light: \r
-So, on this windy sea of land, the Fiend \r
-Walked up and down alone, bent on his prey; \r
-Alone, for other creature in this place, \r
-Living or lifeless, to be found was none; \r
-None yet, but store hereafter from the earth \r
-Up hither like aereal vapours flew \r
-Of all things transitory and vain, when sin \r
-With vanity had filled the works of men: \r
-Both all things vain, and all who in vain things \r
-Built their fond hopes of glory or lasting fame, \r
-Or happiness in this or the other life; \r
-All who have their reward on earth, the fruits \r
-Of painful superstition and blind zeal, \r
-Nought seeking but the praise of men, here find \r
-Fit retribution, empty as their deeds; \r
-All the unaccomplished works of Nature's hand, \r
-Abortive, monstrous, or unkindly mixed, \r
-Dissolved on earth, fleet hither, and in vain, \r
-Till final dissolution, wander here; \r
-Not in the neighbouring moon as some have dreamed; \r
-Those argent fields more likely habitants, \r
-Translated Saints, or middle Spirits hold \r
-Betwixt the angelical and human kind. \r
-Hither of ill-joined sons and daughters born \r
-First from the ancient world those giants came \r
-With many a vain exploit, though then renowned: \r
-The builders next of Babel on the plain \r
-Of Sennaar, and still with vain design, \r
-New Babels, had they wherewithal, would build: \r
-Others came single; he, who, to be deemed \r
-A God, leaped fondly into Aetna flames, \r
-Empedocles; and he, who, to enjoy \r
-Plato's Elysium, leaped into the sea, \r
-Cleombrotus; and many more too long, \r
-Embryos, and idiots, eremites, and friars \r
-White, black, and gray, with all their trumpery. \r
-Here pilgrims roam, that strayed so far to seek \r
-In Golgotha him dead, who lives in Heaven; \r
-And they, who to be sure of Paradise, \r
-Dying, put on the weeds of Dominick, \r
-Or in Franciscan think to pass disguised; \r
-They pass the planets seven, and pass the fixed, \r
-And that crystalling sphere whose balance weighs \r
-The trepidation talked, and that first moved; \r
-And now Saint Peter at Heaven's wicket seems \r
-To wait them with his keys, and now at foot \r
-Of Heaven's ascent they lift their feet, when lo \r
-A violent cross wind from either coast \r
-Blows them transverse, ten thousand leagues awry \r
-Into the devious air: Then might ye see \r
-Cowls, hoods, and habits, with their wearers, tost \r
-And fluttered into rags; then reliques, beads, \r
-Indulgences, dispenses, pardons, bulls, \r
-The sport of winds: All these, upwhirled aloft, \r
-Fly o'er the backside of the world far off \r
-Into a Limbo large and broad, since called \r
-The Paradise of Fools, to few unknown \r
-Long after; now unpeopled, and untrod. \r
-All this dark globe the Fiend found as he passed, \r
-And long he wandered, till at last a gleam \r
-Of dawning light turned thither-ward in haste \r
-His travelled steps: far distant he descries \r
-Ascending by degrees magnificent \r
-Up to the wall of Heaven a structure high; \r
-At top whereof, but far more rich, appeared \r
-The work as of a kingly palace-gate, \r
-With frontispiece of diamond and gold \r
-Embellished; thick with sparkling orient gems \r
-The portal shone, inimitable on earth \r
-By model, or by shading pencil, drawn. \r
-These stairs were such as whereon Jacob saw \r
-Angels ascending and descending, bands \r
-Of guardians bright, when he from Esau fled \r
-To Padan-Aram, in the field of Luz \r
-Dreaming by night under the open sky \r
-And waking cried, This is the gate of Heaven. \r
-Each stair mysteriously was meant, nor stood \r
-There always, but drawn up to Heaven sometimes \r
-Viewless; and underneath a bright sea flowed \r
-Of jasper, or of liquid pearl, whereon \r
-Who after came from earth, failing arrived \r
-Wafted by Angels, or flew o'er the lake \r
-Rapt in a chariot drawn by fiery steeds. \r
-The stairs were then let down, whether to dare \r
-The Fiend by easy ascent, or aggravate \r
-His sad exclusion from the doors of bliss: \r
-Direct against which opened from beneath, \r
-Just o'er the blissful seat of Paradise, \r
-A passage down to the Earth, a passage wide, \r
-Wider by far than that of after-times \r
-Over mount Sion, and, though that were large, \r
-Over the Promised Land to God so dear; \r
-By which, to visit oft those happy tribes, \r
-On high behests his angels to and fro \r
-Passed frequent, and his eye with choice regard \r
-From Paneas, the fount of Jordan's flood, \r
-To Beersaba, where the Holy Land \r
-Borders on Egypt and the Arabian shore; \r
-So wide the opening seemed, where bounds were set \r
-To darkness, such as bound the ocean wave. \r
-Satan from hence, now on the lower stair, \r
-That scaled by steps of gold to Heaven-gate, \r
-Looks down with wonder at the sudden view \r
-Of all this world at once. As when a scout, \r
-Through dark?;nd desart ways with?oeril gone \r
-All?might,?;t?kast by break of cheerful dawn \r
-Obtains the brow of some high-climbing hill, \r
-Which to his eye discovers unaware \r
-The goodly prospect of some foreign land \r
-First seen, or some renowned metropolis \r
-With glistering spires and pinnacles adorned, \r
-Which now the rising sun gilds with his beams: \r
-Such wonder seised, though after Heaven seen, \r
-The Spirit malign, but much more envy seised, \r
-At sight of all this world beheld so fair. \r
-Round he surveys (and well might, where he stood \r
-So high above the circling canopy \r
-Of night's extended shade,) from eastern point \r
-Of Libra to the fleecy star that bears \r
-Andromeda far off Atlantick seas \r
-Beyond the horizon; then from pole to pole \r
-He views in breadth, and without longer pause \r
-Down right into the world's first region throws \r
-His flight precipitant, and winds with ease \r
-Through the pure marble air his oblique way \r
-Amongst innumerable stars, that shone \r
-Stars distant, but nigh hand seemed other worlds; \r
-Or other worlds they seemed, or happy isles, \r
-Like those Hesperian gardens famed of old, \r
-Fortunate fields, and groves, and flowery vales, \r
-Thrice happy isles; but who dwelt happy there \r
-He staid not to inquire: Above them all \r
-The golden sun, in splendour likest Heaven, \r
-Allured his eye; thither his course he bends \r
-Through the calm firmament, (but up or down, \r
-By center, or eccentrick, hard to tell, \r
-Or longitude,) where the great luminary \r
-Aloof the vulgar constellations thick, \r
-That from his lordly eye keep distance due, \r
-Dispenses light from far; they, as they move \r
-Their starry dance in numbers that compute \r
-Days, months, and years, towards his all-cheering lamp \r
-Turn swift their various motions, or are turned \r
-By his magnetick beam, that gently warms \r
-The universe, and to each inward part \r
-With gentle penetration, though unseen, \r
-Shoots invisible virtue even to the deep; \r
-So wonderously was set his station bright. \r
-There lands the Fiend, a spot like which perhaps \r
-Astronomer in the sun's lucent orb \r
-Through his glazed optick tube yet never saw. \r
-The place he found beyond expression bright, \r
-Compared with aught on earth, metal or stone; \r
-Not all parts like, but all alike informed \r
-With radiant light, as glowing iron with fire; \r
-If metal, part seemed gold, part silver clear; \r
-If stone, carbuncle most or chrysolite, \r
-Ruby or topaz, to the twelve that shone \r
-In Aaron's breast-plate, and a stone besides \r
-Imagined rather oft than elsewhere seen, \r
-That stone, or like to that which here below \r
-Philosophers in vain so long have sought, \r
-In vain, though by their powerful art they bind \r
-Volatile Hermes, and call up unbound \r
-In various shapes old Proteus from the sea, \r
-Drained through a limbeck to his native form. \r
-What wonder then if fields and regions here \r
-Breathe forth Elixir pure, and rivers run \r
-Potable gold, when with one virtuous touch \r
-The arch-chemick sun, so far from us remote, \r
-Produces, with terrestrial humour mixed, \r
-Here in the dark so many precious things \r
-Of colour glorious, and effect so rare? \r
-Here matter new to gaze the Devil met \r
-Undazzled; far and wide his eye commands; \r
-For sight no obstacle found here, nor shade, \r
-But all sun-shine, as when his beams at noon \r
-Culminate from the equator, as they now \r
-Shot upward still direct, whence no way round \r
-Shadow from body opaque can fall; and the air, \r
-No where so clear, sharpened his visual ray \r
-To objects distant far, whereby he soon \r
-Saw within ken a glorious Angel stand, \r
-The same whom John saw also in the sun: \r
-His back was turned, but not his brightness hid; \r
-Of beaming sunny rays a golden tiar \r
-Circled his head, nor less his locks behind \r
-Illustrious on his shoulders fledge with wings \r
-Lay waving round; on some great charge employed \r
-He seemed, or fixed in cogitation deep. \r
-Glad was the Spirit impure, as now in hope \r
-To find who might direct his wandering flight \r
-To Paradise, the happy seat of Man, \r
-His journey's end and our beginning woe. \r
-But first he casts to change his proper shape, \r
-Which else might work him danger or delay: \r
-And now a stripling Cherub he appears, \r
-Not of the prime, yet such as in his face \r
-Youth smiled celestial, and to every limb \r
-Suitable grace diffused, so well he feigned: \r
-Under a coronet his flowing hair \r
-In curls on either cheek played; wings he wore \r
-Of many a coloured plume, sprinkled with gold; \r
-His habit fit for speed succinct, and held \r
-Before his decent steps a silver wand. \r
-He drew not nigh unheard; the Angel bright, \r
-Ere he drew nigh, his radiant visage turned, \r
-Admonished by his ear, and straight was known \r
-The Arch-Angel Uriel, one of the seven \r
-Who in God's presence, nearest to his throne, \r
-Stand ready at command, and are his eyes \r
-That run through all the Heavens, or down to the Earth \r
-Bear his swift errands over moist and dry, \r
-O'er sea and land: him Satan thus accosts. \r
-Uriel, for thou of those seven Spirits that stand \r
-In sight of God's high throne, gloriously bright, \r
-The first art wont his great authentick will \r
-Interpreter through highest Heaven to bring, \r
-Where all his sons thy embassy attend; \r
-And here art likeliest by supreme decree \r
-Like honour to obtain, and as his eye \r
-To visit oft this new creation round; \r
-Unspeakable desire to see, and know \r
-All these his wonderous works, but chiefly Man, \r
-His chief delight and favour, him for whom \r
-All these his works so wonderous he ordained, \r
-Hath brought me from the quires of Cherubim \r
-Alone thus wandering. Brightest Seraph, tell \r
-In which of all these shining orbs hath Man \r
-His fixed seat, or fixed seat hath none, \r
-But all these shining orbs his choice to dwell; \r
-That I may find him, and with secret gaze \r
-Or open admiration him behold, \r
-On whom the great Creator hath bestowed \r
-Worlds, and on whom hath all these graces poured; \r
-That both in him and all things, as is meet, \r
-The universal Maker we may praise; \r
-Who justly hath driven out his rebel foes \r
-To deepest Hell, and, to repair that loss, \r
-Created this new happy race of Men \r
-To serve him better: Wise are all his ways. \r
-So spake the false dissembler unperceived; \r
-For neither Man nor Angel can discern \r
-Hypocrisy, the only evil that walks \r
-Invisible, except to God alone, \r
-By his permissive will, through Heaven and Earth: \r
-And oft, though wisdom wake, suspicion sleeps \r
-At wisdom's gate, and to simplicity \r
-Resigns her charge, while goodness thinks no ill \r
-Where no ill seems: Which now for once beguiled \r
-Uriel, though regent of the sun, and held \r
-The sharpest-sighted Spirit of all in Heaven; \r
-Who to the fraudulent impostor foul, \r
-In his uprightness, answer thus returned. \r
-Fair Angel, thy desire, which tends to know \r
-The works of God, thereby to glorify \r
-The great Work-master, leads to no excess \r
-That reaches blame, but rather merits praise \r
-The more it seems excess, that led thee hither \r
-From thy empyreal mansion thus alone, \r
-To witness with thine eyes what some perhaps, \r
-Contented with report, hear only in Heaven: \r
-For wonderful indeed are all his works, \r
-Pleasant to know, and worthiest to be all \r
-Had in remembrance always with delight; \r
-But what created mind can comprehend \r
-Their number, or the wisdom infinite \r
-That brought them forth, but hid their causes deep? \r
-I saw when at his word the formless mass, \r
-This world's material mould, came to a heap: \r
-Confusion heard his voice, and wild uproar \r
-Stood ruled, stood vast infinitude confined; \r
-Till at his second bidding Darkness fled, \r
-Light shone, and order from disorder sprung: \r
-Swift to their several quarters hasted then \r
-The cumbrous elements, earth, flood, air, fire; \r
-And this ethereal quintessence of Heaven \r
-Flew upward, spirited with various forms, \r
-That rolled orbicular, and turned to stars \r
-Numberless, as thou seest, and how they move; \r
-Each had his place appointed, each his course; \r
-The rest in circuit walls this universe. \r
-Look downward on that globe, whose hither side \r
-With light from hence, though but reflected, shines; \r
-That place is Earth, the seat of Man; that light \r
-His day, which else, as the other hemisphere, \r
-Night would invade; but there the neighbouring moon \r
-So call that opposite fair star) her aid \r
-Timely interposes, and her monthly round \r
-Still ending, still renewing, through mid Heaven, \r
-With borrowed light her countenance triform \r
-Hence fills and empties to enlighten the Earth, \r
-And in her pale dominion checks the night. \r
-That spot, to which I point, is Paradise, \r
-Adam's abode; those lofty shades, his bower. \r
-Thy way thou canst not miss, me mine requires. \r
-Thus said, he turned; and Satan, bowing low, \r
-As to superiour Spirits is wont in Heaven, \r
-Where honour due and reverence none neglects, \r
-Took leave, and toward the coast of earth beneath, \r
-Down from the ecliptick, sped with hoped success, \r
-Throws his steep flight in many an aery wheel; \r
-Nor staid, till on Niphates' top he lights. \r
- \r
- \r
- \r
-Book IV \r
- \r
- \r
-O, for that warning voice, which he, who saw \r
-The Apocalypse, heard cry in Heaven aloud, \r
-Then when the Dragon, put to second rout, \r
-Came furious down to be revenged on men, \r
-Woe to the inhabitants on earth! that now, \r
-While time was, our first parents had been warned \r
-The coming of their secret foe, and 'scaped, \r
-Haply so 'scaped his mortal snare: For now \r
-Satan, now first inflamed with rage, came down, \r
-The tempter ere the accuser of mankind, \r
-To wreak on innocent frail Man his loss \r
-Of that first battle, and his flight to Hell: \r
-Yet, not rejoicing in his speed, though bold \r
-Far off and fearless, nor with cause to boast, \r
-Begins his dire attempt; which nigh the birth \r
-Now rolling boils in his tumultuous breast, \r
-And like a devilish engine back recoils \r
-Upon himself; horrour and doubt distract \r
-His troubled thoughts, and from the bottom stir \r
-The Hell within him; for within him Hell \r
-He brings, and round about him, nor from Hell \r
-One step, no more than from himself, can fly \r
-By change of place: Now conscience wakes despair, \r
-That slumbered; wakes the bitter memory \r
-Of what he was, what is, and what must be \r
-Worse; of worse deeds worse sufferings must ensue. \r
-Sometimes towards Eden, which now in his view \r
-Lay pleasant, his grieved look he fixes sad; \r
-Sometimes towards Heaven, and the full-blazing sun, \r
-Which now sat high in his meridian tower: \r
-Then, much revolving, thus in sighs began. \r
-O thou, that, with surpassing glory crowned, \r
-Lookest from thy sole dominion like the God \r
-Of this new world; at whose sight all the stars \r
-Hide their diminished heads; to thee I call, \r
-But with no friendly voice, and add thy name, \r
-Of Sun! to tell thee how I hate thy beams, \r
-That bring to my remembrance from what state \r
-I fell, how glorious once above thy sphere; \r
-Till pride and worse ambition threw me down \r
-Warring in Heaven against Heaven's matchless King: \r
-Ah, wherefore! he deserved no such return \r
-From me, whom he created what I was \r
-In that bright eminence, and with his good \r
-Upbraided none; nor was his service hard. \r
-What could be less than to afford him praise, \r
-The easiest recompence, and pay him thanks, \r
-How due! yet all his good proved ill in me, \r
-And wrought but malice; lifted up so high \r
-I sdeined subjection, and thought one step higher \r
-Would set me highest, and in a moment quit \r
-The debt immense of endless gratitude, \r
-So burdensome still paying, still to owe, \r
-Forgetful what from him I still received, \r
-And understood not that a grateful mind \r
-By owing owes not, but still pays, at once \r
-Indebted and discharged; what burden then \r
-O, had his powerful destiny ordained \r
-Me some inferiour Angel, I had stood \r
-Then happy; no unbounded hope had raised \r
-Ambition! Yet why not some other Power \r
-As great might have aspired, and me, though mean, \r
-Drawn to his part; but other Powers as great \r
-Fell not, but stand unshaken, from within \r
-Or from without, to all temptations armed. \r
-Hadst thou the same free will and power to stand? \r
-Thou hadst: whom hast thou then or what to accuse, \r
-But Heaven's free love dealt equally to all? \r
-Be then his love accursed, since love or hate, \r
-To me alike, it deals eternal woe. \r
-Nay, cursed be thou; since against his thy will \r
-Chose freely what it now so justly rues. \r
-Me miserable! which way shall I fly \r
-Infinite wrath, and infinite despair? \r
-Which way I fly is Hell; myself am Hell; \r
-And, in the lowest deep, a lower deep \r
-Still threatening to devour me opens wide, \r
-To which the Hell I suffer seems a Heaven. \r
-O, then, at last relent: Is there no place \r
-Left for repentance, none for pardon left? \r
-None left but by submission; and that word \r
-Disdain forbids me, and my dread of shame \r
-Among the Spirits beneath, whom I seduced \r
-With other promises and other vaunts \r
-Than to submit, boasting I could subdue \r
-The Omnipotent. Ay me! they little know \r
-How dearly I abide that boast so vain, \r
-Under what torments inwardly I groan, \r
-While they adore me on the throne of Hell. \r
-With diadem and scepter high advanced, \r
-The lower still I fall, only supreme \r
-In misery: Such joy ambition finds. \r
-But say I could repent, and could obtain, \r
-By act of grace, my former state; how soon \r
-Would highth recall high thoughts, how soon unsay \r
-What feigned submission swore? Ease would recant \r
-Vows made in pain, as violent and void. \r
-For never can true reconcilement grow, \r
-Where wounds of deadly hate have pierced so deep: \r
-Which would but lead me to a worse relapse \r
-And heavier fall: so should I purchase dear \r
-Short intermission bought with double smart. \r
-This knows my Punisher; therefore as far \r
-From granting he, as I from begging, peace; \r
-All hope excluded thus, behold, in stead \r
-Mankind created, and for him this world. \r
-So farewell, hope; and with hope farewell, fear; \r
-Farewell, remorse! all good to me is lost; \r
-Evil, be thou my good; by thee at least \r
-Divided empire with Heaven's King I hold, \r
-By thee, and more than half perhaps will reign; \r
-As Man ere long, and this new world, shall know. \r
-Thus while he spake, each passion dimmed his face \r
-Thrice changed with pale, ire, envy, and despair; \r
-Which marred his borrowed visage, and betrayed \r
-Him counterfeit, if any eye beheld. \r
-For heavenly minds from such distempers foul \r
-Are ever clear. Whereof he soon aware, \r
-Each perturbation smoothed with outward calm, \r
-Artificer of fraud; and was the first \r
-That practised falsehood under saintly show, \r
-Deep malice to conceal, couched with revenge: \r
-Yet not enough had practised to deceive \r
-Uriel once warned; whose eye pursued him down \r
- The way he went, and on the Assyrian mount \r
- Saw him disfigured, more than could befall \r
- Spirit of happy sort; his gestures fierce \r
- He marked and mad demeanour, then alone, \r
- As he supposed, all unobserved, unseen. \r
- So on he fares, and to the border comes \r
- Of Eden, where delicious Paradise, \r
- Now nearer, crowns with her enclosure green, \r
- As with a rural mound, the champaign head \r
- Of a steep wilderness, whose hairy sides \r
-Access denied; and overhead upgrew \r
- Insuperable height of loftiest shade, \r
- Cedar, and pine, and fir, and branching palm, \r
- A sylvan scene, and, as the ranks ascend, \r
- Shade above shade, a woody theatre \r
- Of stateliest view. Yet higher than their tops \r
- The verdurous wall of Paradise upsprung; \r
- \r
- 00081429 \r
-Which to our general sire gave prospect large \r
-Into his nether empire neighbouring round. \r
-And higher than that wall a circling row \r
-Of goodliest trees, loaden with fairest fruit, \r
-Blossoms and fruits at once of golden hue, \r
-Appeared, with gay enamelled colours mixed: \r
-On which the sun more glad impressed his beams \r
-Than in fair evening cloud, or humid bow, \r
-When God hath showered the earth; so lovely seemed \r
-That landskip: And of pure now purer air \r
-Meets his approach, and to the heart inspires \r
-Vernal delight and joy, able to drive \r
-All sadness but despair: Now gentle gales, \r
-Fanning their odoriferous wings, dispense \r
-Native perfumes, and whisper whence they stole \r
-Those balmy spoils. As when to them who fail \r
-Beyond the Cape of Hope, and now are past \r
-Mozambick, off at sea north-east winds blow \r
-Sabean odours from the spicy shore \r
-Of Araby the blest; with such delay \r
-Well pleased they slack their course, and many a league \r
-Cheered with the grateful smell old Ocean smiles: \r
-So entertained those odorous sweets the Fiend, \r
-Who came their bane; though with them better pleased \r
-Than Asmodeus with the fishy fume \r
-That drove him, though enamoured, from the spouse \r
-Of Tobit's son, and with a vengeance sent \r
-From Media post to Egypt, there fast bound. \r
-Now to the ascent of that steep savage hill \r
-Satan had journeyed on, pensive and slow; \r
-But further way found none, so thick entwined, \r
-As one continued brake, the undergrowth \r
-Of shrubs and tangling bushes had perplexed \r
-All path of man or beast that passed that way. \r
-One gate there only was, and that looked east \r
-On the other side: which when the arch-felon saw, \r
-Due entrance he disdained; and, in contempt, \r
-At one flight bound high over-leaped all bound \r
-Of hill or highest wall, and sheer within \r
-Lights on his feet. As when a prowling wolf, \r
-Whom hunger drives to seek new haunt for prey, \r
-Watching where shepherds pen their flocks at eve \r
-In hurdled cotes amid the field secure, \r
-Leaps o'er the fence with ease into the fold: \r
-Or as a thief, bent to unhoard the cash \r
-Of some rich burgher, whose substantial doors, \r
-Cross-barred and bolted fast, fear no assault, \r
-In at the window climbs, or o'er the tiles: \r
-So clomb this first grand thief into God's fold; \r
-So since into his church lewd hirelings climb. \r
-Thence up he flew, and on the tree of life, \r
-The middle tree and highest there that grew, \r
-Sat like a cormorant; yet not true life \r
-Thereby regained, but sat devising death \r
-To them who lived; nor on the virtue thought \r
-Of that life-giving plant, but only used \r
-For prospect, what well used had been the pledge \r
-Of immortality. So little knows \r
-Any, but God alone, to value right \r
-The good before him, but perverts best things \r
-To worst abuse, or to their meanest use. \r
-Beneath him with new wonder now he views, \r
-To all delight of human sense exposed, \r
-In narrow room, Nature's whole wealth, yea more, \r
-A Heaven on Earth: For blissful Paradise \r
-Of God the garden was, by him in the east \r
-Of Eden planted; Eden stretched her line \r
-From Auran eastward to the royal towers \r
-Of great Seleucia, built by Grecian kings, \r
-Of where the sons of Eden long before \r
-Dwelt in Telassar: In this pleasant soil \r
-His far more pleasant garden God ordained; \r
-Out of the fertile ground he caused to grow \r
-All trees of noblest kind for sight, smell, taste; \r
-And all amid them stood the tree of life, \r
-High eminent, blooming ambrosial fruit \r
-Of vegetable gold; and next to life, \r
-Our death, the tree of knowledge, grew fast by, \r
-Knowledge of good bought dear by knowing ill. \r
-Southward through Eden went a river large, \r
-Nor changed his course, but through the shaggy hill \r
-Passed underneath ingulfed; for God had thrown \r
-That mountain as his garden-mould high raised \r
-Upon the rapid current, which, through veins \r
-Of porous earth with kindly thirst up-drawn, \r
-Rose a fresh fountain, and with many a rill \r
-Watered the garden; thence united fell \r
-Down the steep glade, and met the nether flood, \r
-Which from his darksome passage now appears, \r
-And now, divided into four main streams, \r
-Runs diverse, wandering many a famous realm \r
-And country, whereof here needs no account; \r
-But rather to tell how, if Art could tell, \r
-How from that sapphire fount the crisped brooks, \r
-Rolling on orient pearl and sands of gold, \r
-With mazy errour under pendant shades \r
-Ran nectar, visiting each plant, and fed \r
-Flowers worthy of Paradise, which not nice Art \r
-In beds and curious knots, but Nature boon \r
-Poured forth profuse on hill, and dale, and plain, \r
-Both where the morning sun first warmly smote \r
-The open field, and where the unpierced shade \r
-Imbrowned the noontide bowers: Thus was this place \r
-A happy rural seat of various view; \r
-Groves whose rich trees wept odorous gums and balm, \r
-Others whose fruit, burnished with golden rind, \r
-Hung amiable, Hesperian fables true, \r
-If true, here only, and of delicious taste: \r
-Betwixt them lawns, or level downs, and flocks \r
-Grazing the tender herb, were interposed, \r
-Or palmy hillock; or the flowery lap \r
-Of some irriguous valley spread her store, \r
-Flowers of all hue, and without thorn the rose: \r
-Another side, umbrageous grots and caves \r
-Of cool recess, o'er which the mantling vine \r
-Lays forth her purple grape, and gently creeps \r
-Luxuriant; mean while murmuring waters fall \r
-Down the slope hills, dispersed, or in a lake, \r
-That to the fringed bank with myrtle crowned \r
-Her crystal mirrour holds, unite their streams. \r
-The birds their quire apply; airs, vernal airs, \r
-Breathing the smell of field and grove, attune \r
-The trembling leaves, while universal Pan, \r
-Knit with the Graces and the Hours in dance, \r
-Led on the eternal Spring. Not that fair field \r
-Of Enna, where Proserpine gathering flowers, \r
-Herself a fairer flower by gloomy Dis \r
-Was gathered, which cost Ceres all that pain \r
-To seek her through the world; nor that sweet grove \r
-Of Daphne by Orontes, and the inspired \r
-Castalian spring, might with this Paradise \r
-Of Eden strive; nor that Nyseian isle \r
-Girt with the river Triton, where old Cham, \r
-Whom Gentiles Ammon call and Libyan Jove, \r
-Hid Amalthea, and her florid son \r
-Young Bacchus, from his stepdame Rhea's eye; \r
-Nor where Abassin kings their issue guard, \r
-Mount Amara, though this by some supposed \r
-True Paradise under the Ethiop line \r
-By Nilus' head, enclosed with shining rock, \r
-A whole day's journey high, but wide remote \r
-From this Assyrian garden, where the Fiend \r
-Saw, undelighted, all delight, all kind \r
-Of living creatures, new to sight, and strange \r
-Two of far nobler shape, erect and tall, \r
-Godlike erect, with native honour clad \r
-In naked majesty seemed lords of all: \r
-And worthy seemed; for in their looks divine \r
-The image of their glorious Maker shone, \r
-Truth, wisdom, sanctitude severe and pure, \r
-(Severe, but in true filial freedom placed,) \r
-Whence true authority in men; though both \r
-Not equal, as their sex not equal seemed; \r
-For contemplation he and valour formed; \r
-For softness she and sweet attractive grace; \r
-He for God only, she for God in him: \r
-His fair large front and eye sublime declared \r
-Absolute rule; and hyacinthine locks \r
-Round from his parted forelock manly hung \r
-Clustering, but not beneath his shoulders broad: \r
-She, as a veil, down to the slender waist \r
-Her unadorned golden tresses wore \r
-Dishevelled, but in wanton ringlets waved \r
-As the vine curls her tendrils, which implied \r
-Subjection, but required with gentle sway, \r
-And by her yielded, by him best received, \r
-Yielded with coy submission, modest pride, \r
-And sweet, reluctant, amorous delay. \r
-Nor those mysterious parts were then concealed; \r
-Then was not guilty shame, dishonest shame \r
-Of nature's works, honour dishonourable, \r
-Sin-bred, how have ye troubled all mankind \r
-With shows instead, mere shows of seeming pure, \r
-And banished from man's life his happiest life, \r
-Simplicity and spotless innocence! \r
-So passed they naked on, nor shunned the sight \r
-Of God or Angel; for they thought no ill: \r
-So hand in hand they passed, the loveliest pair, \r
-That ever since in love's embraces met; \r
-Adam the goodliest man of men since born \r
-His sons, the fairest of her daughters Eve. \r
-Under a tuft of shade that on a green \r
-Stood whispering soft, by a fresh fountain side \r
-They sat them down; and, after no more toil \r
-Of their sweet gardening labour than sufficed \r
-To recommend cool Zephyr, and made ease \r
-More easy, wholesome thirst and appetite \r
-More grateful, to their supper-fruits they fell, \r
-Nectarine fruits which the compliant boughs \r
-Yielded them, side-long as they sat recline \r
-On the soft downy bank damasked with flowers: \r
-The savoury pulp they chew, and in the rind, \r
-Still as they thirsted, scoop the brimming stream; \r
-Nor gentle purpose, nor endearing smiles \r
-Wanted, nor youthful dalliance, as beseems \r
-Fair couple, linked in happy nuptial league, \r
-Alone as they. About them frisking played \r
-All beasts of the earth, since wild, and of all chase \r
-In wood or wilderness, forest or den; \r
-Sporting the lion ramped, and in his paw \r
-Dandled the kid; bears, tigers, ounces, pards, \r
-Gambolled before them; the unwieldy elephant, \r
-To make them mirth, used all his might, and wreathed \r
-His?kithetmroboscis; close the serpent sly, \r
-Insinuating, wove with Gordian twine \r
-His braided train, and of his fatal guile \r
-Gave proof unheeded; others on the grass \r
-Couched, and now filled with pasture gazing sat, \r
-Or bedward ruminating; for the sun, \r
-Declined, was hasting now with prone career \r
-To the ocean isles, and in the ascending scale \r
-Of Heaven the stars that usher evening rose: \r
-When Satan still in gaze, as first he stood, \r
-Scarce thus at length failed speech recovered sad. \r
-O Hell! what do mine eyes with grief behold! \r
-Into our room of bliss thus high advanced \r
-Creatures of other mould, earth-born perhaps, \r
-Not Spirits, yet to heavenly Spirits bright \r
-Little inferiour; whom my thoughts pursue \r
-With wonder, and could love, so lively shines \r
-In them divine resemblance, and such grace \r
-The hand that formed them on their shape hath poured. \r
-Ah! gentle pair, ye little think how nigh \r
-Your change approaches, when all these delights \r
-Will vanish, and deliver ye to woe; \r
-More woe, the more your taste is now of joy; \r
-Happy, but for so happy ill secured \r
-Long to continue, and this high seat your Heaven \r
-Ill fenced for Heaven to keep out such a foe \r
-As now is entered; yet no purposed foe \r
-To you, whom I could pity thus forlorn, \r
-Though I unpitied: League with you I seek, \r
-And mutual amity, so strait, so close, \r
-That I with you must dwell, or you with me \r
-Henceforth; my dwelling haply may not please, \r
-Like this fair Paradise, your sense; yet such \r
-Accept your Maker's work; he gave it me, \r
-Which I as freely give: Hell shall unfold, \r
-To entertain you two, her widest gates, \r
-And send forth all her kings; there will be room, \r
-Not like these narrow limits, to receive \r
-Your numerous offspring; if no better place, \r
-Thank him who puts me loth to this revenge \r
-On you who wrong me not for him who wronged. \r
-And should I at your harmless innocence \r
-Melt, as I do, yet publick reason just, \r
-Honour and empire with revenge enlarged, \r
-By conquering this new world, compels me now \r
-To do what else, though damned, I should abhor. \r
-So spake the Fiend, and with necessity, \r
-The tyrant's plea, excused his devilish deeds. \r
-Then from his lofty stand on that high tree \r
-Down he alights among the sportful herd \r
-Of those four-footed kinds, himself now one, \r
-Now other, as their shape served best his end \r
-Nearer to view his prey, and, unespied, \r
-To mark what of their state he more might learn, \r
-By word or action marked. About them round \r
-A lion now he stalks with fiery glare; \r
-Then as a tiger, who by chance hath spied \r
-In some purlieu two gentle fawns at play, \r
-Straight couches close, then, rising, changes oft \r
-His couchant watch, as one who chose his ground, \r
-Whence rushing, he might surest seize them both, \r
-Griped in each paw: when, Adam first of men \r
-To first of women Eve thus moving speech, \r
-Turned him, all ear to hear new utterance flow. \r
-Sole partner, and sole part, of all these joys, \r
-Dearer thyself than all; needs must the Power \r
-That made us, and for us this ample world, \r
-Be infinitely good, and of his good \r
-As liberal and free as infinite; \r
-That raised us from the dust, and placed us here \r
-In all this happiness, who at his hand \r
-Have nothing merited, nor can perform \r
-Aught whereof he hath need; he who requires \r
-From us no other service than to keep \r
-This one, this easy charge, of all the trees \r
-In Paradise that bear delicious fruit \r
-So various, not to taste that only tree \r
-Of knowledge, planted by the tree of life; \r
-So near grows death to life, whate'er death is, \r
-Some dreadful thing no doubt; for well thou knowest \r
-God hath pronounced it death to taste that tree, \r
-The only sign of our obedience left, \r
-Among so many signs of power and rule \r
-Conferred upon us, and dominion given \r
-Over all other creatures that possess \r
-Earth, air, and sea. Then let us not think hard \r
-One easy prohibition, who enjoy \r
-Free leave so large to all things else, and choice \r
-Unlimited of manifold delights: \r
-But let us ever praise him, and extol \r
-His bounty, following our delightful task, \r
-To prune these growing plants, and tend these flowers, \r
-Which were it toilsome, yet with thee were sweet. \r
-To whom thus Eve replied. O thou for whom \r
-And from whom I was formed, flesh of thy flesh, \r
-And without whom am to no end, my guide \r
-And head! what thou hast said is just and right. \r
-For we to him indeed all praises owe, \r
-And daily thanks; I chiefly, who enjoy \r
-So far the happier lot, enjoying thee \r
-Pre-eminent by so much odds, while thou \r
-Like consort to thyself canst no where find. \r
-That day I oft remember, when from sleep \r
-I first awaked, and found myself reposed \r
-Under a shade on flowers, much wondering where \r
-And what I was, whence thither brought, and how. \r
-Not distant far from thence a murmuring sound \r
-Of waters issued from a cave, and spread \r
-Into a liquid plain, then stood unmoved \r
-Pure as the expanse of Heaven; I thither went \r
-With unexperienced thought, and laid me down \r
-On the green bank, to look into the clear \r
-Smooth lake, that to me seemed another sky. \r
-As I bent down to look, just opposite \r
-A shape within the watery gleam appeared, \r
-Bending to look on me: I started back, \r
-It started back; but pleased I soon returned, \r
-Pleased it returned as soon with answering looks \r
-Of sympathy and love: There I had fixed \r
-Mine eyes till now, and pined with vain desire, \r
-Had not a voice thus warned me; 'What thou seest, \r
-'What there thou seest, fair Creature, is thyself; \r
-'With thee it came and goes: but follow me, \r
-'And I will bring thee where no shadow stays \r
-'Thy coming, and thy soft embraces, he \r
-'Whose image thou art; him thou shalt enjoy \r
-'Inseparably thine, to him shalt bear \r
-'Multitudes like thyself, and thence be called \r
-'Mother of human race.' What could I do, \r
-But follow straight, invisibly thus led? \r
-Till I espied thee, fair indeed and tall, \r
-Under a platane; yet methought less fair, \r
-Less winning soft, less amiably mild, \r
-Than that smooth watery image: Back I turned; \r
-Thou following cryedst aloud, 'Return, fair Eve; \r
-'Whom flyest thou? whom thou flyest, of him thou art, \r
-'His flesh, his bone; to give thee being I lent \r
-'Out of my side to thee, nearest my heart, \r
-'Substantial life, to have thee by my side \r
-'Henceforth an individual solace dear; \r
-'Part of my soul I seek thee, and thee claim \r
-'My other half:' With that thy gentle hand \r
-Seised mine: I yielded;and from that time see \r
-How beauty is excelled by manly grace, \r
-And wisdom, which alone is truly fair. \r
-So spake our general mother, and with eyes \r
-Of conjugal attraction unreproved, \r
-And meek surrender, half-embracing leaned \r
-On our first father; half her swelling breast \r
-Naked met his, under the flowing gold \r
-Of her loose tresses hid: he in delight \r
-Both of her beauty, and submissive charms, \r
-Smiled with superiour love, as Jupiter \r
-On Juno smiles, when he impregns the clouds \r
-That shed Mayflowers; and pressed her matron lip \r
-With kisses pure: Aside the Devil turned \r
-For envy; yet with jealous leer malign \r
-Eyed them askance, and to himself thus plained. \r
-Sight hateful, sight tormenting! thus these two, \r
-Imparadised in one another's arms, \r
-The happier Eden, shall enjoy their fill \r
-Of bliss on bliss; while I to Hell am thrust, \r
-Where neither joy nor love, but fierce desire, \r
-Among our other torments not the least, \r
-Still unfulfilled with pain of longing pines. \r
-Yet let me not forget what I have gained \r
-From their own mouths: All is not theirs, it seems; \r
-One fatal tree there stands, of knowledge called, \r
-Forbidden them to taste: Knowledge forbidden \r
-Suspicious, reasonless. Why should their Lord \r
-Envy them that? Can it be sin to know? \r
-Can it be death? And do they only stand \r
-By ignorance? Is that their happy state, \r
-The proof of their obedience and their faith? \r
-O fair foundation laid whereon to build \r
-Their ruin! hence I will excite their minds \r
-With more desire to know, and to reject \r
-Envious commands, invented with design \r
-To keep them low, whom knowledge might exalt \r
-Equal with Gods: aspiring to be such, \r
-They taste and die: What likelier can ensue \r
-But first with narrow search I must walk round \r
-This garden, and no corner leave unspied; \r
-A chance but chance may lead where I may meet \r
-Some wandering Spirit of Heaven by fountain side, \r
-Or in thick shade retired, from him to draw \r
-What further would be learned. Live while ye may, \r
-Yet happy pair; enjoy, till I return, \r
-Short pleasures, for long woes are to succeed! \r
-So saying, his proud step he scornful turned, \r
-But with sly circumspection, and began \r
-Through wood, through waste, o'er hill, o'er dale, his roam \r
-Mean while in utmost longitude, where Heaven \r
-With earth and ocean meets, the setting sun \r
-Slowly descended, and with right aspect \r
-Against the eastern gate of Paradise \r
-Levelled his evening rays: It was a rock \r
-Of alabaster, piled up to the clouds, \r
-Conspicuous far, winding with one ascent \r
-Accessible from earth, one entrance high; \r
-The rest was craggy cliff, that overhung \r
-Still as it rose, impossible to climb. \r
-Betwixt these rocky pillars Gabriel sat, \r
-Chief of the angelick guards, awaiting night; \r
-About him exercised heroick games \r
-The unarmed youth of Heaven, but nigh at hand \r
-Celestial armoury, shields, helms, and spears, \r
-Hung high with diamond flaming, and with gold. \r
-Thither came Uriel, gliding through the even \r
-On a sun-beam, swift as a shooting star \r
-In autumn thwarts the night, when vapours fired \r
-Impress the air, and shows the mariner \r
-From what point of his compass to beware \r
-Impetuous winds: He thus began in haste. \r
-Gabriel, to thee thy course by lot hath given \r
-Charge and strict watch, that to this happy place \r
-No evil thing approach or enter in. \r
-This day at highth of noon came to my sphere \r
-A Spirit, zealous, as he seemed, to know \r
-More of the Almighty's works, and chiefly Man, \r
-God's latest image: I described his way \r
-Bent all on speed, and marked his aery gait; \r
-But in the mount that lies from Eden north, \r
-Where he first lighted, soon discerned his looks \r
-Alien from Heaven, with passions foul obscured: \r
-Mine eye pursued him still, but under shade \r
-Lost sight of him: One of the banished crew, \r
-I fear, hath ventured from the deep, to raise \r
-New troubles; him thy care must be to find. \r
-To whom the winged warriour thus returned. \r
-Uriel, no wonder if thy perfect sight, \r
-Amid the sun's bright circle where thou sitst, \r
-See far and wide: In at this gate none pass \r
-The vigilance here placed, but such as come \r
-Well known from Heaven; and since meridian hour \r
-No creature thence: If Spirit of other sort, \r
-So minded, have o'er-leaped these earthly bounds \r
-On purpose, hard thou knowest it to exclude \r
-Spiritual substance with corporeal bar. \r
-But if within the circuit of these walks, \r
-In whatsoever shape he lurk, of whom \r
-Thou tellest, by morrow dawning I shall know. \r
-So promised he; and Uriel to his charge \r
-Returned on that bright beam, whose point now raised \r
-Bore him slope downward to the sun now fallen \r
-Beneath the Azores; whether the prime orb, \r
-Incredible how swift, had thither rolled \r
-Diurnal, or this less volubil earth, \r
-By shorter flight to the east, had left him there \r
-Arraying with reflected purple and gold \r
-The clouds that on his western throne attend. \r
-Now came still Evening on, and Twilight gray \r
-Had in her sober livery all things clad; \r
-Silence accompanied; for beast and bird, \r
-They to their grassy couch, these to their nests \r
-Were slunk, all but the wakeful nightingale; \r
-She all night long her amorous descant sung; \r
-Silence was pleased: Now glowed the firmament \r
-With living sapphires: Hesperus, that led \r
-The starry host, rode brightest, till the moon, \r
-Rising in clouded majesty, at length \r
-Apparent queen unveiled her peerless light, \r
-And o'er the dark her silver mantle threw. \r
-When Adam thus to Eve. Fair Consort, the hour \r
-Of night, and all things now retired to rest, \r
-Mind us of like repose; since God hath set \r
-Labour and rest, as day and night, to men \r
-Successive; and the timely dew of sleep, \r
-Now falling with soft slumbrous weight, inclines \r
-Our eye-lids: Other creatures all day long \r
-Rove idle, unemployed, and less need rest; \r
-Man hath his daily work of body or mind \r
-Appointed, which declares his dignity, \r
-And the regard of Heaven on all his ways; \r
-While other animals unactive range, \r
-And of their doings God takes no account. \r
-To-morrow, ere fresh morning streak the east \r
-With first approach of light, we must be risen, \r
-And at our pleasant labour, to reform \r
-Yon flowery arbours, yonder alleys green, \r
-Our walk at noon, with branches overgrown, \r
-That mock our scant manuring, and require \r
-More hands than ours to lop their wanton growth: \r
-Those blossoms also, and those dropping gums, \r
-That lie bestrown, unsightly and unsmooth, \r
-Ask riddance, if we mean to tread with ease; \r
-Mean while, as Nature wills, night bids us rest. \r
-To whom thus Eve, with perfect beauty adorned \r
-My Author and Disposer, what thou bidst \r
-Unargued I obey: So God ordains; \r
-God is thy law, thou mine: To know no more \r
-Is woman's happiest knowledge, and her praise. \r
-With thee conversing I forget all time; \r
-All seasons, and their change, all please alike. \r
-Sweet is the breath of Morn, her rising sweet, \r
-With charm of earliest birds: pleasant the sun, \r
-When first on this delightful land he spreads \r
-His orient beams, on herb, tree, fruit, and flower, \r
-Glistering with dew; fragrant the fertile earth \r
-After soft showers; and sweet the coming on \r
-Of grateful Evening mild; then silent Night, \r
-With this her solemn bird, and this fair moon, \r
-And these the gems of Heaven, her starry train: \r
-But neither breath of Morn, when she ascends \r
-With charm of earliest birds; nor rising sun \r
-On this delightful land; nor herb, fruit, flower, \r
-Glistering with dew; nor fragrance after showers; \r
-Nor grateful Evening mild; nor silent Night, \r
-With this her solemn bird, nor walk by moon, \r
-Or glittering star-light, without thee is sweet. \r
-But wherefore all night long shine these? for whom \r
-This glorious sight, when sleep hath shut all eyes? \r
-To whom our general ancestor replied. \r
-Daughter of God and Man, accomplished Eve, \r
-These have their course to finish round the earth, \r
-By morrow evening, and from land to land \r
-In order, though to nations yet unborn, \r
-Ministring light prepared, they set and rise; \r
-Lest total Darkness should by night regain \r
-Her old possession, and extinguish life \r
-In Nature and all things; which these soft fires \r
-Not only enlighten, but with kindly heat \r
-Of various influence foment and warm, \r
-Temper or nourish, or in part shed down \r
-Their stellar virtue on all kinds that grow \r
-On earth, made hereby apter to receive \r
-Perfection from the sun's more potent ray. \r
-These then, though unbeheld in deep of night, \r
-Shine not in vain; nor think, though men were none, \r
-That Heaven would want spectators, God want praise: \r
-Millions of spiritual creatures walk the earth \r
-Unseen, both when we wake, and when we sleep: \r
-All these with ceaseless praise his works behold \r
-Both day and night: How often from the steep \r
-Of echoing hill or thicket have we heard \r
-Celestial voices to the midnight air, \r
-Sole, or responsive each to others note, \r
-Singing their great Creator? oft in bands \r
-While they keep watch, or nightly rounding walk, \r
-With heavenly touch of instrumental sounds \r
-In full harmonick number joined, their songs \r
-Divide the night, and lift our thoughts to Heaven. \r
-Thus talking, hand in hand alone they passed \r
-On to their blissful bower: it was a place \r
-Chosen by the sovran Planter, when he framed \r
-All things to Man's delightful use; the roof \r
-Of thickest covert was inwoven shade \r
-Laurel and myrtle, and what higher grew \r
-Of firm and fragrant leaf; on either side \r
-Acanthus, and each odorous bushy shrub, \r
-Fenced up the verdant wall; each beauteous flower, \r
-Iris all hues, roses, and jessamin, \r
-Reared high their flourished heads between, and wrought \r
-Mosaick; underfoot the violet, \r
-Crocus, and hyacinth, with rich inlay \r
-Broidered the ground, more coloured than with stone \r
-Of costliest emblem: Other creature here, \r
-Bird, beast, insect, or worm, durst enter none, \r
-Such was their awe of Man. In shadier bower \r
-More sacred and sequestered, though but feigned, \r
-Pan or Sylvanus never slept, nor Nymph \r
-Nor Faunus haunted. Here, in close recess, \r
-With flowers, garlands, and sweet-smelling herbs, \r
-Espoused Eve decked first her nuptial bed; \r
-And heavenly quires the hymenaean sung, \r
-What day the genial Angel to our sire \r
-Brought her in naked beauty more adorned, \r
-More lovely, than Pandora, whom the Gods \r
-Endowed with all their gifts, and O! too like \r
-In sad event, when to the unwiser son \r
-Of Japhet brought by Hermes, she ensnared \r
-Mankind with her fair looks, to be avenged \r
-On him who had stole Jove's authentick fire. \r
-Thus, at their shady lodge arrived, both stood, \r
-Both turned, and under open sky adored \r
-The God that made both sky, air, earth, and heaven, \r
-Which they beheld, the moon's resplendent globe, \r
-And starry pole: Thou also madest the night, \r
-Maker Omnipotent, and thou the day, \r
-Which we, in our appointed work employed, \r
-Have finished, happy in our mutual help \r
-And mutual love, the crown of all our bliss \r
-Ordained by thee; and this delicious place \r
-For us too large, where thy abundance wants \r
-Partakers, and uncropt falls to the ground. \r
-But thou hast promised from us two a race \r
-To fill the earth, who shall with us extol \r
-Thy goodness infinite, both when we wake, \r
-And when we seek, as now, thy gift of sleep. \r
-This said unanimous, and other rites \r
-Observing none, but adoration pure \r
-Which God likes best, into their inmost bower \r
-Handed they went; and, eased the putting off \r
-These troublesome disguises which we wear, \r
-Straight side by side were laid; nor turned, I ween, \r
-Adam from his fair spouse, nor Eve the rites \r
-Mysterious of connubial love refused: \r
-Whatever hypocrites austerely talk \r
-Of purity, and place, and innocence, \r
-Defaming as impure what God declares \r
-Pure, and commands to some, leaves free to all. \r
-Our Maker bids encrease; who bids abstain \r
-But our Destroyer, foe to God and Man? \r
-Hail, wedded Love, mysterious law, true source \r
-Of human offspring, sole propriety \r
-In Paradise of all things common else! \r
-By thee adulterous Lust was driven from men \r
-Among the bestial herds to range; by thee \r
-Founded in reason, loyal, just, and pure, \r
-Relations dear, and all the charities \r
-Of father, son, and brother, first were known. \r
-Far be it, that I should write thee sin or blame, \r
-Or think thee unbefitting holiest place, \r
-Perpetual fountain of domestick sweets, \r
-Whose bed is undefiled and chaste pronounced, \r
-Present, or past, as saints and patriarchs used. \r
-Here Love his golden shafts employs, here lights \r
-His constant lamp, and waves his purple wings, \r
-Reigns here and revels; not in the bought smile \r
-Of harlots, loveless, joyless, unendeared, \r
-Casual fruition; nor in court-amours, \r
-Mixed dance, or wanton mask, or midnight ball, \r
-Or serenate, which the starved lover sings \r
-To his proud fair, best quitted with disdain. \r
-These, lulled by nightingales, embracing slept, \r
-And on their naked limbs the flowery roof \r
-Showered roses, which the morn repaired. Sleep on, \r
-Blest pair; and O!yet happiest, if ye seek \r
-No happier state, and know to know no more. \r
-Now had night measured with her shadowy cone \r
-Half way up hill this vast sublunar vault, \r
-And from their ivory port the Cherubim, \r
-Forth issuing at the accustomed hour, stood armed \r
-To their night watches in warlike parade; \r
-When Gabriel to his next in power thus spake. \r
-Uzziel, half these draw off, and coast the south \r
-With strictest watch; these other wheel the north; \r
-Our circuit meets full west. As flame they part, \r
-Half wheeling to the shield, half to the spear. \r
-From these, two strong and subtle Spirits he called \r
-That near him stood, and gave them thus in charge. \r
-Ithuriel and Zephon, with winged speed \r
-Search through this garden, leave unsearched no nook; \r
-But chiefly where those two fair creatures lodge, \r
-Now laid perhaps asleep, secure of harm. \r
-This evening from the sun's decline arrived, \r
-Who tells of some infernal Spirit seen \r
-Hitherward bent (who could have thought?) escaped \r
-The bars of Hell, on errand bad no doubt: \r
-Such, where ye find, seise fast, and hither bring. \r
-So saying, on he led his radiant files, \r
-Dazzling the moon; these to the bower direct \r
-In search of whom they sought: Him there they found \r
-Squat like a toad, close at the ear of Eve, \r
-Assaying by his devilish art to reach \r
-The organs of her fancy, and with them forge \r
-Illusions, as he list, phantasms and dreams; \r
-Or if, inspiring venom, he might taint \r
-The animal spirits, that from pure blood arise \r
-Like gentle breaths from rivers pure, thence raise \r
-At least distempered, discontented thoughts, \r
-Vain hopes, vain aims, inordinate desires, \r
-Blown up with high conceits ingendering pride. \r
-Him thus intent Ithuriel with his spear \r
-Touched lightly; for no falshood can endure \r
-Touch of celestial temper, but returns \r
-Of force to its own likeness: Up he starts \r
-Discovered and surprised. As when a spark \r
-Lights on a heap of nitrous powder, laid \r
-Fit for the tun some magazine to store \r
-Against a rumoured war, the smutty grain, \r
-With sudden blaze diffused, inflames the air; \r
-So started up in his own shape the Fiend. \r
-Back stept those two fair Angels, half amazed \r
-So sudden to behold the grisly king; \r
-Yet thus, unmoved with fear, accost him soon. \r
-Which of those rebel Spirits adjudged to Hell \r
-Comest thou, escaped thy prison? and, transformed, \r
-Why sat'st thou like an enemy in wait, \r
-Here watching at the head of these that sleep? \r
-Know ye not then said Satan, filled with scorn, \r
-Know ye not me? ye knew me once no mate \r
-For you, there sitting where ye durst not soar: \r
-Not to know me argues yourselves unknown, \r
-The lowest of your throng; or, if ye know, \r
-Why ask ye, and superfluous begin \r
-Your message, like to end as much in vain? \r
-To whom thus Zephon, answering scorn with scorn. \r
-Think not, revolted Spirit, thy shape the same, \r
-Or undiminished brightness to be known, \r
-As when thou stoodest in Heaven upright and pure; \r
-That glory then, when thou no more wast good, \r
-Departed from thee; and thou resemblest now \r
-Thy sin and place of doom obscure and foul. \r
-But come, for thou, be sure, shalt give account \r
-To him who sent us, whose charge is to keep \r
-This place inviolable, and these from harm. \r
-So spake the Cherub; and his grave rebuke, \r
-Severe in youthful beauty, added grace \r
-Invincible: Abashed the Devil stood, \r
-And felt how awful goodness is, and saw \r
-Virtue in her shape how lovely; saw, and pined \r
-His loss; but chiefly to find here observed \r
-His lustre visibly impaired; yet seemed \r
-Undaunted. If I must contend, said he, \r
-Best with the best, the sender, not the sent, \r
-Or all at once; more glory will be won, \r
-Or less be lost. Thy fear, said Zephon bold, \r
-Will save us trial what the least can do \r
-Single against thee wicked, and thence weak. \r
-The Fiend replied not, overcome with rage; \r
-But, like a proud steed reined, went haughty on, \r
-Champing his iron curb: To strive or fly \r
-He held it vain; awe from above had quelled \r
-His heart, not else dismayed. Now drew they nigh \r
-The western point, where those half-rounding guards \r
-Just met, and closing stood in squadron joined, \r
-A waiting next command. To whom their Chief, \r
-Gabriel, from the front thus called aloud. \r
-O friends! I hear the tread of nimble feet \r
-Hasting this way, and now by glimpse discern \r
-Ithuriel and Zephon through the shade; \r
-And with them comes a third of regal port, \r
-But faded splendour wan; who by his gait \r
-And fierce demeanour seems the Prince of Hell, \r
-Not likely to part hence without contest; \r
-Stand firm, for in his look defiance lours. \r
-He scarce had ended, when those two approached, \r
-And brief related whom they brought, where found, \r
-How busied, in what form and posture couched. \r
-To whom with stern regard thus Gabriel spake. \r
-Why hast thou, Satan, broke the bounds prescribed \r
-To thy transgressions, and disturbed the charge \r
-Of others, who approve not to transgress \r
-By thy example, but have power and right \r
-To question thy bold entrance on this place; \r
-Employed, it seems, to violate sleep, and those \r
-Whose dwelling God hath planted here in bliss! \r
-To whom thus Satan with contemptuous brow. \r
-Gabriel? thou hadst in Heaven the esteem of wise, \r
-And such I held thee; but this question asked \r
-Puts me in doubt. Lives there who loves his pain! \r
-Who would not, finding way, break loose from Hell, \r
-Though thither doomed! Thou wouldst thyself, no doubt \r
-And boldly venture to whatever place \r
-Farthest from pain, where thou mightst hope to change \r
-Torment with ease, and soonest recompense \r
-Dole with delight, which in this place I sought; \r
-To thee no reason, who knowest only good, \r
-But evil hast not tried: and wilt object \r
-His will who bounds us! Let him surer bar \r
-His iron gates, if he intends our stay \r
-In that dark durance: Thus much what was asked. \r
-The rest is true, they found me where they say; \r
-But that implies not violence or harm. \r
-Thus he in scorn. The warlike Angel moved, \r
-Disdainfully half smiling, thus replied. \r
-O loss of one in Heaven to judge of wise \r
-Since Satan fell, whom folly overthrew, \r
-And now returns him from his prison 'scaped, \r
-Gravely in doubt whether to hold them wise \r
-Or not, who ask what boldness brought him hither \r
-Unlicensed from his bounds in Hell prescribed; \r
-So wise he judges it to fly from pain \r
-However, and to 'scape his punishment! \r
-So judge thou still, presumptuous! till the wrath, \r
-Which thou incurrest by flying, meet thy flight \r
-Sevenfold, and scourge that wisdom back to Hell, \r
-Which taught thee yet no better, that no pain \r
-Can equal anger infinite provoked. \r
-But wherefore thou alone? wherefore with thee \r
-Came not all hell broke loose? or thou than they \r
-Less hardy to endure? Courageous Chief! \r
-The first in flight from pain! hadst thou alleged \r
-To thy deserted host this cause of flight, \r
-Thou surely hadst not come sole fugitive. \r
-To which the Fiend thus answered, frowning stern. \r
-Not that I less endure, or shrink from pain, \r
-Insulting Angel! well thou knowest I stood \r
-Thy fiercest, when in battle to thy aid \r
-The blasting vollied thunder made all speed, \r
-And seconded thy else not dreaded spear. \r
-But still thy words at random, as before, \r
-Argue thy inexperience what behoves \r
-From hard assays and ill successes past \r
-A faithful leader, not to hazard all \r
-Through ways of danger by himself untried: \r
-I, therefore, I alone first undertook \r
-To wing the desolate abyss, and spy \r
-This new created world, whereof in Hell \r
-Fame is not silent, here in hope to find \r
-Better abode, and my afflicted Powers \r
-To settle here on earth, or in mid air; \r
-Though for possession put to try once more \r
-What thou and thy gay legions dare against; \r
-Whose easier business were to serve their Lord \r
-High up in Heaven, with songs to hymn his throne, \r
-And practised distances to cringe, not fight, \r
-To whom the warriour Angel soon replied. \r
-To say and straight unsay, pretending first \r
-Wise to fly pain, professing next the spy, \r
-Argues no leader but a liear traced, \r
-Satan, and couldst thou faithful add? O name, \r
-O sacred name of faithfulness profaned! \r
-Faithful to whom? to thy rebellious crew? \r
-Army of Fiends, fit body to fit head. \r
-Was this your discipline and faith engaged, \r
-Your military obedience, to dissolve \r
-Allegiance to the acknowledged Power supreme? \r
-And thou, sly hypocrite, who now wouldst seem \r
-Patron of liberty, who more than thou \r
-Once fawned, and cringed, and servily adored \r
-Heaven's awful Monarch? wherefore, but in hope \r
-To dispossess him, and thyself to reign? \r
-But mark what I arreed thee now, Avant; \r
-Fly neither whence thou fledst! If from this hour \r
-Within these hallowed limits thou appear, \r
-Back to the infernal pit I drag thee chained, \r
-And seal thee so, as henceforth not to scorn \r
-The facile gates of Hell too slightly barred. \r
-So threatened he; but Satan to no threats \r
-Gave heed, but waxing more in rage replied. \r
-Then when I am thy captive talk of chains, \r
-Proud limitary Cherub! but ere then \r
-Far heavier load thyself expect to feel \r
-From my prevailing arm, though Heaven's King \r
-Ride on thy wings, and thou with thy compeers, \r
-Us'd to the yoke, drawest his triumphant wheels \r
-In progress through the road of Heaven star-paved. \r
-While thus he spake, the angelick squadron bright \r
-Turned fiery red, sharpening in mooned horns \r
-Their phalanx, and began to hem him round \r
-With ported spears, as thick as when a field \r
-Of Ceres ripe for harvest waving bends \r
-Her bearded grove of ears, which way the wind \r
-Sways them; the careful plowman doubting stands, \r
-Left on the threshing floor his hopeless sheaves \r
-Prove chaff. On the other side, Satan, alarmed, \r
-Collecting all his might, dilated stood, \r
-Like Teneriff or Atlas, unremoved: \r
-His stature reached the sky, and on his crest \r
-Sat Horrour plumed; nor wanted in his grasp \r
-What seemed both spear and shield: Now dreadful deeds \r
-Might have ensued, nor only Paradise \r
-In this commotion, but the starry cope \r
-Of Heaven perhaps, or all the elements \r
-At least had gone to wrack, disturbed and torn \r
-With violence of this conflict, had not soon \r
-The Eternal, to prevent such horrid fray, \r
-Hung forth in Heaven his golden scales, yet seen \r
-Betwixt Astrea and the Scorpion sign, \r
-Wherein all things created first he weighed, \r
-The pendulous round earth with balanced air \r
-In counterpoise, now ponders all events, \r
-Battles and realms: In these he put two weights, \r
-The sequel each of parting and of fight: \r
-The latter quick up flew, and kicked the beam, \r
-Which Gabriel spying, thus bespake the Fiend. \r
-Satan, I know thy strength, and thou knowest mine; \r
-Neither our own, but given: What folly then \r
-To boast what arms can do? since thine no more \r
-Than Heaven permits, nor mine, though doubled now \r
-To trample thee as mire: For proof look up, \r
-And read thy lot in yon celestial sign; \r
-Where thou art weighed, and shown how light, how weak, \r
-If thou resist. The Fiend looked up, and knew \r
-His mounted scale aloft: Nor more;but fled \r
-Murmuring, and with him fled the shades of night. \r
- \r
- \r
- \r
-Book V \r
- \r
- \r
-Now Morn, her rosy steps in the eastern clime \r
-Advancing, sowed the earth with orient pearl, \r
-When Adam waked, so customed; for his sleep \r
-Was aery-light, from pure digestion bred, \r
-And temperate vapours bland, which the only sound \r
-Of leaves and fuming rills, Aurora's fan, \r
-Lightly dispersed, and the shrill matin song \r
-Of birds on every bough; so much the more \r
-His wonder was to find unwakened Eve \r
-With tresses discomposed, and glowing cheek, \r
-As through unquiet rest: He, on his side \r
-Leaning half raised, with looks of cordial love \r
-Hung over her enamoured, and beheld \r
-Beauty, which, whether waking or asleep, \r
-Shot forth peculiar graces; then with voice \r
-Mild, as when Zephyrus on Flora breathes, \r
-Her hand soft touching, whispered thus. Awake, \r
-My fairest, my espoused, my latest found, \r
-Heaven's last best gift, my ever new delight! \r
-Awake: The morning shines, and the fresh field \r
-Calls us; we lose the prime, to mark how spring \r
-Our tender plants, how blows the citron grove, \r
-What drops the myrrh, and what the balmy reed, \r
-How nature paints her colours, how the bee \r
-Sits on the bloom extracting liquid sweet. \r
-Such whispering waked her, but with startled eye \r
-On Adam, whom embracing, thus she spake. \r
-O sole in whom my thoughts find all repose, \r
-My glory, my perfection! glad I see \r
-Thy face, and morn returned; for I this night \r
-(Such night till this I never passed) have dreamed, \r
-If dreamed, not, as I oft am wont, of thee, \r
-Works of day past, or morrow's next design, \r
-But of offence and trouble, which my mind \r
-Knew never till this irksome night: Methought, \r
-Close at mine ear one called me forth to walk \r
-With gentle voice; I thought it thine: It said, \r
-'Why sleepest thou, Eve? now is the pleasant time, \r
-'The cool, the silent, save where silence yields \r
-'To the night-warbling bird, that now awake \r
-'Tunes sweetest his love-laboured song; now reigns \r
-'Full-orbed the moon, and with more pleasing light \r
-'Shadowy sets off the face of things; in vain, \r
-'If none regard; Heaven wakes with all his eyes, \r
-'Whom to behold but thee, Nature's desire? \r
-'In whose sight all things joy, with ravishment \r
-'Attracted by thy beauty still to gaze.' \r
-I rose as at thy call, but found thee not; \r
-To find thee I directed then my walk; \r
-And on, methought, alone I passed through ways \r
-That brought me on a sudden to the tree \r
-Of interdicted knowledge: fair it seemed, \r
-Much fairer to my fancy than by day: \r
-And, as I wondering looked, beside it stood \r
-One shaped and winged like one of those from Heaven \r
-By us oft seen; his dewy locks distilled \r
-Ambrosia; on that tree he also gazed; \r
-And 'O fair plant,' said he, 'with fruit surcharged, \r
-'Deigns none to ease thy load, and taste thy sweet, \r
-'Nor God, nor Man? Is knowledge so despised? \r
-'Or envy, or what reserve forbids to taste? \r
-'Forbid who will, none shall from me withhold \r
-'Longer thy offered good; why else set here? \r
-This said, he paused not, but with venturous arm \r
-He plucked, he tasted; me damp horrour chilled \r
-At such bold words vouched with a deed so bold: \r
-But he thus, overjoyed; 'O fruit divine, \r
-'Sweet of thyself, but much more sweet thus cropt, \r
-'Forbidden here, it seems, as only fit \r
-'For Gods, yet able to make Gods of Men: \r
-'And why not Gods of Men; since good, the more \r
-'Communicated, more abundant grows, \r
-'The author not impaired, but honoured more? \r
-'Here, happy creature, fair angelick Eve! \r
-'Partake thou also; happy though thou art, \r
-'Happier thou mayest be, worthier canst not be: \r
-'Taste this, and be henceforth among the Gods \r
-'Thyself a Goddess, not to earth confined, \r
-'But sometimes in the air, as we, sometimes \r
-'Ascend to Heaven, by merit thine, and see \r
-'What life the Gods live there, and such live thou!' \r
-So saying, he drew nigh, and to me held, \r
-Even to my mouth of that same fruit held part \r
-Which he had plucked; the pleasant savoury smell \r
-So quickened appetite, that I, methought, \r
-Could not but taste. Forthwith up to the clouds \r
-With him I flew, and underneath beheld \r
-The earth outstretched immense, a prospect wide \r
-And various: Wondering at my flight and change \r
-To this high exaltation; suddenly \r
-My guide was gone, and I, methought, sunk down, \r
-And fell asleep; but O, how glad I waked \r
-To find this but a dream! Thus Eve her night \r
-Related, and thus Adam answered sad. \r
-Best image of myself, and dearer half, \r
-The trouble of thy thoughts this night in sleep \r
-Affects me equally; nor can I like \r
-This uncouth dream, of evil sprung, I fear; \r
-Yet evil whence? in thee can harbour none, \r
-Created pure. But know that in the soul \r
-Are many lesser faculties, that serve \r
-Reason as chief; among these Fancy next \r
-Her office holds; of all external things \r
-Which the five watchful senses represent, \r
-She forms imaginations, aery shapes, \r
-Which Reason, joining or disjoining, frames \r
-All what we affirm or what deny, and call \r
-Our knowledge or opinion; then retires \r
-Into her private cell, when nature rests. \r
-Oft in her absence mimick Fancy wakes \r
-To imitate her; but, misjoining shapes, \r
-Wild work produces oft, and most in dreams; \r
-Ill matching words and deeds long past or late. \r
-Some such resemblances, methinks, I find \r
-Of our last evening's talk, in this thy dream, \r
-But with addition strange; yet be not sad. \r
-Evil into the mind of God or Man \r
-May come and go, so unreproved, and leave \r
-No spot or blame behind: Which gives me hope \r
-That what in sleep thou didst abhor to dream, \r
-Waking thou never will consent to do. \r
-Be not disheartened then, nor cloud those looks, \r
-That wont to be more cheerful and serene, \r
-Than when fair morning first smiles on the world; \r
-And let us to our fresh employments rise \r
-Among the groves, the fountains, and the flowers \r
-That open now their choisest bosomed smells, \r
-Reserved from night, and kept for thee in store. \r
-So cheered he his fair spouse, and she was cheered; \r
-But silently a gentle tear let fall \r
-From either eye, and wiped them with her hair; \r
-Two other precious drops that ready stood, \r
-Each in their crystal sluice, he ere they fell \r
-Kissed, as the gracious signs of sweet remorse \r
-And pious awe, that feared to have offended. \r
-So all was cleared, and to the field they haste. \r
-But first, from under shady arborous roof \r
-Soon as they forth were come to open sight \r
-Of day-spring, and the sun, who, scarce up-risen, \r
-With wheels yet hovering o'er the ocean-brim, \r
-Shot parallel to the earth his dewy ray, \r
-Discovering in wide landskip all the east \r
-Of Paradise and Eden's happy plains, \r
-Lowly they bowed adoring, and began \r
-Their orisons, each morning duly paid \r
-In various style; for neither various style \r
-Nor holy rapture wanted they to praise \r
-Their Maker, in fit strains pronounced, or sung \r
-Unmeditated; such prompt eloquence \r
-Flowed from their lips, in prose or numerous verse, \r
-More tuneable than needed lute or harp \r
-To add more sweetness; and they thus began. \r
-These are thy glorious works, Parent of good, \r
-Almighty! Thine this universal frame, \r
-Thus wonderous fair; Thyself how wonderous then! \r
-Unspeakable, who sitst above these heavens \r
-To us invisible, or dimly seen \r
-In these thy lowest works; yet these declare \r
-Thy goodness beyond thought, and power divine. \r
-Speak, ye who best can tell, ye sons of light, \r
-Angels; for ye behold him, and with songs \r
-And choral symphonies, day without night, \r
-Circle his throne rejoicing; ye in Heaven \r
-On Earth join all ye Creatures to extol \r
-Him first, him last, him midst, and without end. \r
-Fairest of stars, last in the train of night, \r
-If better thou belong not to the dawn, \r
-Sure pledge of day, that crownest the smiling morn \r
-With thy bright circlet, praise him in thy sphere, \r
-While day arises, that sweet hour of prime. \r
-Thou Sun, of this great world both eye and soul, \r
-Acknowledge him thy greater; sound his praise \r
-In thy eternal course, both when thou climbest, \r
-And when high noon hast gained, and when thou fallest. \r
-Moon, that now meetest the orient sun, now flyest, \r
-With the fixed Stars, fixed in their orb that flies; \r
-And ye five other wandering Fires, that move \r
-In mystick dance not without song, resound \r
-His praise, who out of darkness called up light. \r
-Air, and ye Elements, the eldest birth \r
-Of Nature's womb, that in quaternion run \r
-Perpetual circle, multiform; and mix \r
-And nourish all things; let your ceaseless change \r
-Vary to our great Maker still new praise. \r
-Ye Mists and Exhalations, that now rise \r
-From hill or steaming lake, dusky or gray, \r
-Till the sun paint your fleecy skirts with gold, \r
-In honour to the world's great Author rise; \r
-Whether to deck with clouds the uncoloured sky, \r
-Or wet the thirsty earth with falling showers, \r
-Rising or falling still advance his praise. \r
-His praise, ye Winds, that from four quarters blow, \r
-Breathe soft or loud; and, wave your tops, ye Pines, \r
-With every plant, in sign of worship wave. \r
-Fountains, and ye that warble, as ye flow, \r
-Melodious murmurs, warbling tune his praise. \r
-Join voices, all ye living Souls: Ye Birds, \r
-That singing up to Heaven-gate ascend, \r
-Bear on your wings and in your notes his praise. \r
-Ye that in waters glide, and ye that walk \r
-The earth, and stately tread, or lowly creep; \r
-Witness if I be silent, morn or even, \r
-To hill, or valley, fountain, or fresh shade, \r
-Made vocal by my song, and taught his praise. \r
-Hail, universal Lord, be bounteous still \r
-To give us only good; and if the night \r
-Have gathered aught of evil, or concealed, \r
-Disperse it, as now light dispels the dark! \r
-So prayed they innocent, and to their thoughts \r
-Firm peace recovered soon, and wonted calm. \r
-On to their morning's rural work they haste, \r
-Among sweet dews and flowers; where any row \r
-Of fruit-trees over-woody reached too far \r
-Their pampered boughs, and needed hands to check \r
-Fruitless embraces: or they led the vine \r
-To wed her elm; she, spoused, about him twines \r
-Her marriageable arms, and with him brings \r
-Her dower, the adopted clusters, to adorn \r
-His barren leaves. Them thus employed beheld \r
-With pity Heaven's high King, and to him called \r
-Raphael, the sociable Spirit, that deigned \r
-To travel with Tobias, and secured \r
-His marriage with the seventimes-wedded maid. \r
-Raphael, said he, thou hearest what stir on Earth \r
-Satan, from Hell 'scaped through the darksome gulf, \r
-Hath raised in Paradise; and how disturbed \r
-This night the human pair; how he designs \r
-In them at once to ruin all mankind. \r
-Go therefore, half this day as friend with friend \r
-Converse with Adam, in what bower or shade \r
-Thou findest him from the heat of noon retired, \r
-To respite his day-labour with repast, \r
-Or with repose; and such discourse bring on, \r
-As may advise him of his happy state, \r
-Happiness in his power left free to will, \r
-Left to his own free will, his will though free, \r
-Yet mutable; whence warn him to beware \r
-He swerve not, too secure: Tell him withal \r
-His danger, and from whom; what enemy, \r
-Late fallen himself from Heaven, is plotting now \r
-The fall of others from like state of bliss; \r
-By violence? no, for that shall be withstood; \r
-But by deceit and lies: This let him know, \r
-Lest, wilfully transgressing, he pretend \r
-Surprisal, unadmonished, unforewarned. \r
-So spake the Eternal Father, and fulfilled \r
-All justice: Nor delayed the winged Saint \r
-After his charge received; but from among \r
-Thousand celestial Ardours, where he stood \r
-Veiled with his gorgeous wings, up springing light, \r
-Flew through the midst of Heaven; the angelick quires, \r
-On each hand parting, to his speed gave way \r
-Through all the empyreal road; till, at the gate \r
-Of Heaven arrived, the gate self-opened wide \r
-On golden hinges turning, as by work \r
-Divine the sovran Architect had framed. \r
-From hence no cloud, or, to obstruct his sight, \r
-Star interposed, however small he sees, \r
-Not unconformed to other shining globes, \r
-Earth, and the garden of God, with cedars crowned \r
-Above all hills. As when by night the glass \r
-Of Galileo, less assured, observes \r
-Imagined lands and regions in the moon: \r
-Or pilot, from amidst the Cyclades \r
-Delos or Samos first appearing, kens \r
-A cloudy spot. Down thither prone in flight \r
-He speeds, and through the vast ethereal sky \r
-Sails between worlds and worlds, with steady wing \r
-Now on the polar winds, then with quick fan \r
-Winnows the buxom air; till, within soar \r
-Of towering eagles, to all the fowls he seems \r
-A phoenix, gazed by all as that sole bird, \r
-When, to enshrine his reliques in the Sun's \r
-Bright temple, to Egyptian Thebes he flies. \r
-At once on the eastern cliff of Paradise \r
-He lights, and to his proper shape returns \r
-A Seraph winged: Six wings he wore, to shade \r
-His lineaments divine; the pair that clad \r
-Each shoulder broad, came mantling o'er his breast \r
-With regal ornament; the middle pair \r
-Girt like a starry zone his waist, and round \r
-Skirted his loins and thighs with downy gold \r
-And colours dipt in Heaven; the third his feet \r
-Shadowed from either heel with feathered mail, \r
-Sky-tinctured grain. Like Maia's son he stood, \r
-And shook his plumes, that heavenly fragrance filled \r
-The circuit wide. Straight knew him all the bands \r
-Of Angels under watch; and to his state, \r
-And to his message high, in honour rise; \r
-For on some message high they guessed him bound. \r
-Their glittering tents he passed, and now is come \r
-Into the blissful field, through groves of myrrh, \r
-And flowering odours, cassia, nard, and balm; \r
-A wilderness of sweets; for Nature here \r
-Wantoned as in her prime, and played at will \r
-Her virgin fancies pouring forth more sweet, \r
-Wild above rule or art, enormous bliss. \r
-Him through the spicy forest onward come \r
-Adam discerned, as in the door he sat \r
-Of his cool bower, while now the mounted sun \r
-Shot down direct his fervid rays to warm \r
-Earth's inmost womb, more warmth than Adam needs: \r
-And Eve within, due at her hour prepared \r
-For dinner savoury fruits, of taste to please \r
-True appetite, and not disrelish thirst \r
-Of nectarous draughts between, from milky stream, \r
-Berry or grape: To whom thus Adam called. \r
-Haste hither, Eve, and worth thy sight behold \r
-Eastward among those trees, what glorious shape \r
-Comes this way moving; seems another morn \r
-Risen on mid-noon; some great behest from Heaven \r
-To us perhaps he brings, and will vouchsafe \r
-This day to be our guest. But go with speed, \r
-And, what thy stores contain, bring forth, and pour \r
-Abundance, fit to honour and receive \r
-Our heavenly stranger: Well we may afford \r
-Our givers their own gifts, and large bestow \r
-From large bestowed, where Nature multiplies \r
-Her fertile growth, and by disburthening grows \r
-More fruitful, which instructs us not to spare. \r
-To whom thus Eve. Adam, earth's hallowed mould, \r
-Of God inspired! small store will serve, where store, \r
-All seasons, ripe for use hangs on the stalk; \r
-Save what by frugal storing firmness gains \r
-To nourish, and superfluous moist consumes: \r
-But I will haste, and from each bough and brake, \r
-Each plant and juciest gourd, will pluck such choice \r
-To entertain our Angel-guest, as he \r
-Beholding shall confess, that here on Earth \r
-God hath dispensed his bounties as in Heaven. \r
-So saying, with dispatchful looks in haste \r
-She turns, on hospitable thoughts intent \r
-What choice to choose for delicacy best, \r
-What order, so contrived as not to mix \r
-Tastes, not well joined, inelegant, but bring \r
-Taste after taste upheld with kindliest change; \r
-Bestirs her then, and from each tender stalk \r
-Whatever Earth, all-bearing mother, yields \r
-In India East or West, or middle shore \r
-In Pontus or the Punick coast, or where \r
-Alcinous reigned, fruit of all kinds, in coat \r
-Rough, or smooth rind, or bearded husk, or shell, \r
-She gathers, tribute large, and on the board \r
-Heaps with unsparing hand; for drink the grape \r
-She crushes, inoffensive must, and meaths \r
-From many a berry, and from sweet kernels pressed \r
-She tempers dulcet creams; nor these to hold \r
-Wants her fit vessels pure; then strows the ground \r
-With rose and odours from the shrub unfumed. \r
-Mean while our primitive great sire, to meet \r
-His God-like guest, walks forth, without more train \r
-Accompanied than with his own complete \r
-Perfections; in himself was all his state, \r
-More solemn than the tedious pomp that waits \r
-On princes, when their rich retinue long \r
-Of horses led, and grooms besmeared with gold, \r
-Dazzles the croud, and sets them all agape. \r
-Nearer his presence Adam, though not awed, \r
-Yet with submiss approach and reverence meek, \r
-As to a superiour nature bowing low, \r
-Thus said. Native of Heaven, for other place \r
-None can than Heaven such glorious shape contain; \r
-Since, by descending from the thrones above, \r
-Those happy places thou hast deigned a while \r
-To want, and honour these, vouchsafe with us \r
-Two only, who yet by sovran gift possess \r
-This spacious ground, in yonder shady bower \r
-To rest; and what the garden choicest bears \r
-To sit and taste, till this meridian heat \r
-Be over, and the sun more cool decline. \r
-Whom thus the angelick Virtue answered mild. \r
-Adam, I therefore came; nor art thou such \r
-Created, or such place hast here to dwell, \r
-As may not oft invite, though Spirits of Heaven, \r
-To visit thee; lead on then where thy bower \r
-O'ershades; for these mid-hours, till evening rise, \r
-I have at will. So to the sylvan lodge \r
-They came, that like Pomona's arbour smiled, \r
-With flowerets decked, and fragrant smells; but Eve, \r
-Undecked save with herself, more lovely fair \r
-Than Wood-Nymph, or the fairest Goddess feigned \r
-Of three that in mount Ida naked strove, \r
-Stood to entertain her guest from Heaven; no veil \r
-She needed, virtue-proof; no thought infirm \r
-Altered her cheek. On whom the Angel Hail \r
-Bestowed, the holy salutation used \r
-Long after to blest Mary, second Eve. \r
-Hail, Mother of Mankind, whose fruitful womb \r
-Shall fill the world more numerous with thy sons, \r
-Than with these various fruits the trees of God \r
-Have heaped this table!--Raised of grassy turf \r
-Their table was, and mossy seats had round, \r
-And on her ample square from side to side \r
-All autumn piled, though spring and autumn here \r
-Danced hand in hand. A while discourse they hold; \r
-No fear lest dinner cool; when thus began \r
-Our author. Heavenly stranger, please to taste \r
-These bounties, which our Nourisher, from whom \r
-All perfect good, unmeasured out, descends, \r
-To us for food and for delight hath caused \r
-The earth to yield; unsavoury food perhaps \r
-To spiritual natures; only this I know, \r
-That one celestial Father gives to all. \r
-To whom the Angel. Therefore what he gives \r
-(Whose praise be ever sung) to Man in part \r
-Spiritual, may of purest Spirits be found \r
-No ingrateful food: And food alike those pure \r
-Intelligential substances require, \r
-As doth your rational; and both contain \r
-Within them every lower faculty \r
-Of sense, whereby they hear, see, smell, touch, taste, \r
-Tasting concoct, digest, assimilate, \r
-And corporeal to incorporeal turn. \r
-For know, whatever was created, needs \r
-To be sustained and fed: Of elements \r
-The grosser feeds the purer, earth the sea, \r
-Earth and the sea feed air, the air those fires \r
-Ethereal, and as lowest first the moon; \r
-Whence in her visage round those spots, unpurged \r
-Vapours not yet into her substance turned. \r
-Nor doth the moon no nourishment exhale \r
-From her moist continent to higher orbs. \r
-The sun that light imparts to all, receives \r
-From all his alimental recompence \r
-In humid exhalations, and at even \r
-Sups with the ocean. Though in Heaven the trees \r
-Of life ambrosial fruitage bear, and vines \r
-Yield nectar; though from off the boughs each morn \r
-We brush mellifluous dews, and find the ground \r
-Covered with pearly grain: Yet God hath here \r
-Varied his bounty so with new delights, \r
-As may compare with Heaven; and to taste \r
-Think not I shall be nice. So down they sat, \r
-And to their viands fell; nor seemingly \r
-The Angel, nor in mist, the common gloss \r
-Of Theologians; but with keen dispatch \r
-Of real hunger, and concoctive heat \r
-To transubstantiate: What redounds, transpires \r
-Through Spirits with ease; nor wonder;if by fire \r
-Of sooty coal the empirick alchemist \r
-Can turn, or holds it possible to turn, \r
-Metals of drossiest ore to perfect gold, \r
-As from the mine. Mean while at table Eve \r
-Ministered naked, and their flowing cups \r
-With pleasant liquours crowned: O innocence \r
-Deserving Paradise! if ever, then, \r
-Then had the sons of God excuse to have been \r
-Enamoured at that sight; but in those hearts \r
-Love unlibidinous reigned, nor jealousy \r
-Was understood, the injured lover's hell. \r
-Thus when with meats and drinks they had sufficed, \r
-Not burdened nature, sudden mind arose \r
-In Adam, not to let the occasion pass \r
-Given him by this great conference to know \r
-Of things above his world, and of their being \r
-Who dwell in Heaven, whose excellence he saw \r
-Transcend his own so far; whose radiant forms, \r
-Divine effulgence, whose high power, so far \r
-Exceeded human; and his wary speech \r
-Thus to the empyreal minister he framed. \r
-Inhabitant with God, now know I well \r
-Thy favour, in this honour done to Man; \r
-Under whose lowly roof thou hast vouchsafed \r
-To enter, and these earthly fruits to taste, \r
-Food not of Angels, yet accepted so, \r
-As that more willingly thou couldst not seem \r
-At Heaven's high feasts to have fed: yet what compare \r
-To whom the winged Hierarch replied. \r
-O Adam, One Almighty is, from whom \r
-All things proceed, and up to him return, \r
-If not depraved from good, created all \r
-Such to perfection, one first matter all, \r
-Endued with various forms, various degrees \r
-Of substance, and, in things that live, of life; \r
-But more refined, more spiritous, and pure, \r
-As nearer to him placed, or nearer tending \r
-Each in their several active spheres assigned, \r
-Till body up to spirit work, in bounds \r
-Proportioned to each kind. So from the root \r
-Springs lighter the green stalk, from thence the leaves \r
-More aery, last the bright consummate flower \r
-Spirits odorous breathes: flowers and their fruit, \r
-Man's nourishment, by gradual scale sublimed, \r
-To vital spirits aspire, to animal, \r
-To intellectual; give both life and sense, \r
-Fancy and understanding; whence the soul \r
-Reason receives, and reason is her being, \r
-Discursive, or intuitive; discourse \r
-Is oftest yours, the latter most is ours, \r
-Differing but in degree, of kind the same. \r
-Wonder not then, what God for you saw good \r
-If I refuse not, but convert, as you \r
-To proper substance. Time may come, when Men \r
-With Angels may participate, and find \r
-No inconvenient diet, nor too light fare; \r
-And from these corporal nutriments perhaps \r
-Your bodies may at last turn all to spirit, \r
-Improved by tract of time, and, winged, ascend \r
-Ethereal, as we; or may, at choice, \r
-Here or in heavenly Paradises dwell; \r
-If ye be found obedient, and retain \r
-Unalterably firm his love entire, \r
-Whose progeny you are. Mean while enjoy \r
-Your fill what happiness this happy state \r
-Can comprehend, incapable of more. \r
-To whom the patriarch of mankind replied. \r
-O favourable Spirit, propitious guest, \r
-Well hast thou taught the way that might direct \r
-Our knowledge, and the scale of nature set \r
-From center to circumference; whereon, \r
-In contemplation of created things, \r
-By steps we may ascend to God. But say, \r
-What meant that caution joined, If ye be found \r
-Obedient? Can we want obedience then \r
-To him, or possibly his love desert, \r
-Who formed us from the dust and placed us here \r
-Full to the utmost measure of what bliss \r
-Human desires can seek or apprehend? \r
-To whom the Angel. Son of Heaven and Earth, \r
-Attend! That thou art happy, owe to God; \r
-That thou continuest such, owe to thyself, \r
-That is, to thy obedience; therein stand. \r
-This was that caution given thee; be advised. \r
-God made thee perfect, not immutable; \r
-And good he made thee, but to persevere \r
-He left it in thy power; ordained thy will \r
-By nature free, not over-ruled by fate \r
-Inextricable, or strict necessity: \r
-Our voluntary service he requires, \r
-Not our necessitated; such with him \r
-Finds no acceptance, nor can find; for how \r
-Can hearts, not free, be tried whether they serve \r
-Willing or no, who will but what they must \r
-By destiny, and can no other choose? \r
-Myself, and all the angelick host, that stand \r
-In sight of God, enthroned, our happy state \r
-Hold, as you yours, while our obedience holds; \r
-On other surety none: Freely we serve, \r
-Because we freely love, as in our will \r
-To love or not; in this we stand or fall: \r
-And some are fallen, to disobedience fallen, \r
-And so from Heaven to deepest Hell; O fall \r
-From what high state of bliss, into what woe! \r
-To whom our great progenitor. Thy words \r
-Attentive, and with more delighted ear, \r
-Divine instructer, I have heard, than when \r
-Cherubick songs by night from neighbouring hills \r
-Aereal musick send: Nor knew I not \r
-To be both will and deed created free; \r
-Yet that we never shall forget to love \r
-Our Maker, and obey him whose command \r
-Single is yet so just, my constant thoughts \r
-Assured me, and still assure: Though what thou tellest \r
-Hath passed in Heaven, some doubt within me move, \r
-But more desire to hear, if thou consent, \r
-The full relation, which must needs be strange, \r
-Worthy of sacred silence to be heard; \r
-And we have yet large day, for scarce the sun \r
-Hath finished half his journey, and scarce begins \r
-His other half in the great zone of Heaven. \r
-Thus Adam made request; and Raphael, \r
-After short pause assenting, thus began. \r
-High matter thou enjoinest me, O prime of men, \r
-Sad task and hard: For how shall I relate \r
-To human sense the invisible exploits \r
-Of warring Spirits? how, without remorse, \r
-The ruin of so many glorious once \r
-And perfect while they stood? how last unfold \r
-The secrets of another world, perhaps \r
-Not lawful to reveal? yet for thy good \r
-This is dispensed; and what surmounts the reach \r
-Of human sense, I shall delineate so, \r
-By likening spiritual to corporal forms, \r
-As may express them best; though what if Earth \r
-Be but a shadow of Heaven, and things therein \r
-Each to other like, more than on earth is thought? \r
-As yet this world was not, and Chaos wild \r
-Reigned where these Heavens now roll, where Earth now rests \r
-Upon her center poised; when on a day \r
-(For time, though in eternity, applied \r
-To motion, measures all things durable \r
-By present, past, and future,) on such day \r
-As Heaven's great year brings forth, the empyreal host \r
-Of Angels by imperial summons called, \r
-Innumerable before the Almighty's throne \r
-Forthwith, from all the ends of Heaven, appeared \r
-Under their Hierarchs in orders bright: \r
-Ten thousand thousand ensigns high advanced, \r
-Standards and gonfalons 'twixt van and rear \r
-Stream in the air, and for distinction serve \r
-Of hierarchies, of orders, and degrees; \r
-Or in their glittering tissues bear imblazed \r
-Holy memorials, acts of zeal and love \r
-Recorded eminent. Thus when in orbs \r
-Of circuit inexpressible they stood, \r
-Orb within orb, the Father Infinite, \r
-By whom in bliss imbosomed sat the Son, \r
-Amidst as from a flaming mount, whose top \r
-Brightness had made invisible, thus spake. \r
-Hear, all ye Angels, progeny of light, \r
-Thrones, Dominations, Princedoms, Virtues, Powers; \r
-Hear my decree, which unrevoked shall stand. \r
-This day I have begot whom I declare \r
-My only Son, and on this holy hill \r
-Him have anointed, whom ye now behold \r
-At my right hand; your head I him appoint; \r
-And by myself have sworn, to him shall bow \r
-All knees in Heaven, and shall confess him Lord: \r
-Under his great vice-gerent reign abide \r
-United, as one individual soul, \r
-For ever happy: Him who disobeys, \r
-Me disobeys, breaks union, and that day, \r
-Cast out from God and blessed vision, falls \r
-Into utter darkness, deep ingulfed, his place \r
-Ordained without redemption, without end. \r
-So spake the Omnipotent, and with his words \r
-All seemed well pleased; all seemed, but were not all. \r
-That day, as other solemn days, they spent \r
-In song and dance about the sacred hill; \r
-Mystical dance, which yonder starry sphere \r
-Of planets, and of fixed, in all her wheels \r
-Resembles nearest, mazes intricate, \r
-Eccentrick, intervolved, yet regular \r
-Then most, when most irregular they seem; \r
-And in their motions harmony divine \r
-So smooths her charming tones, that God's own ear \r
-Listens delighted. Evening now approached, \r
-(For we have also our evening and our morn, \r
-We ours for change delectable, not need;) \r
-Forthwith from dance to sweet repast they turn \r
-Desirous; all in circles as they stood, \r
-Tables are set, and on a sudden piled \r
-With Angels food, and rubied nectar flows \r
-In pearl, in diamond, and massy gold, \r
-Fruit of delicious vines, the growth of Heaven. \r
-On flowers reposed, and with fresh flowerets crowned, \r
-They eat, they drink, and in communion sweet \r
-Quaff immortality and joy, secure \r
-Of surfeit, where full measure only bounds \r
-Excess, before the all-bounteous King, who showered \r
-With copious hand, rejoicing in their joy. \r
-Now when ambrosial night with clouds exhaled \r
-From that high mount of God, whence light and shade \r
-Spring both, the face of brightest Heaven had changed \r
-To grateful twilight, (for night comes not there \r
-In darker veil,) and roseat dews disposed \r
-All but the unsleeping eyes of God to rest; \r
-Wide over all the plain, and wider far \r
-Than all this globous earth in plain outspread, \r
-(Such are the courts of God) the angelick throng, \r
-Dispersed in bands and files, their camp extend \r
-By living streams among the trees of life, \r
-Pavilions numberless, and sudden reared, \r
-Celestial tabernacles, where they slept \r
-Fanned with cool winds; save those, who, in their course, \r
-Melodious hymns about the sovran throne \r
-Alternate all night long: but not so waked \r
-Satan; so call him now, his former name \r
-Is heard no more in Heaven; he of the first, \r
-If not the first Arch-Angel, great in power, \r
-In favour and pre-eminence, yet fraught \r
-With envy against the Son of God, that day \r
-Honoured by his great Father, and proclaimed \r
-Messiah King anointed, could not bear \r
-Through pride that sight, and thought himself impaired. \r
-Deep malice thence conceiving and disdain, \r
-Soon as midnight brought on the dusky hour \r
-Friendliest to sleep and silence, he resolved \r
-With all his legions to dislodge, and leave \r
-Unworshipt, unobeyed, the throne supreme, \r
-Contemptuous; and his next subordinate \r
-Awakening, thus to him in secret spake. \r
-Sleepest thou, Companion dear? What sleep can close \r
-Thy eye-lids? and rememberest what decree \r
-Of yesterday, so late hath passed the lips \r
-Of Heaven's Almighty. Thou to me thy thoughts \r
-Wast wont, I mine to thee was wont to impart; \r
-Both waking we were one; how then can now \r
-Thy sleep dissent? New laws thou seest imposed; \r
-New laws from him who reigns, new minds may raise \r
-In us who serve, new counsels to debate \r
-What doubtful may ensue: More in this place \r
-To utter is not safe. Assemble thou \r
-Of all those myriads which we lead the chief; \r
-Tell them, that by command, ere yet dim night \r
-Her shadowy cloud withdraws, I am to haste, \r
-And all who under me their banners wave, \r
-Homeward, with flying march, where we possess \r
-The quarters of the north; there to prepare \r
-Fit entertainment to receive our King, \r
-The great Messiah, and his new commands, \r
-Who speedily through all the hierarchies \r
-Intends to pass triumphant, and give laws. \r
-So spake the false Arch-Angel, and infused \r
-Bad influence into the unwary breast \r
-Of his associate: He together calls, \r
-Or several one by one, the regent Powers, \r
-Under him Regent; tells, as he was taught, \r
-That the Most High commanding, now ere night, \r
-Now ere dim night had disincumbered Heaven, \r
-The great hierarchal standard was to move; \r
-Tells the suggested cause, and casts between \r
-Ambiguous words and jealousies, to sound \r
-Or taint integrity: But all obeyed \r
-The wonted signal, and superiour voice \r
-Of their great Potentate; for great indeed \r
-His name, and high was his degree in Heaven; \r
-His countenance, as the morning-star that guides \r
-The starry flock, allured them, and with lies \r
-Drew after him the third part of Heaven's host. \r
-Mean while the Eternal eye, whose sight discerns \r
-Abstrusest thoughts, from forth his holy mount, \r
-And from within the golden lamps that burn \r
-Nightly before him, saw without their light \r
-Rebellion rising; saw in whom, how spread \r
-Among the sons of morn, what multitudes \r
-Were banded to oppose his high decree; \r
-And, smiling, to his only Son thus said. \r
-Son, thou in whom my glory I behold \r
-In full resplendence, Heir of all my might, \r
-Nearly it now concerns us to be sure \r
-Of our Omnipotence, and with what arms \r
-We mean to hold what anciently we claim \r
-Of deity or empire: Such a foe \r
-Is rising, who intends to erect his throne \r
-Equal to ours, throughout the spacious north; \r
-Nor so content, hath in his thought to try \r
-In battle, what our power is, or our right. \r
-Let us advise, and to this hazard draw \r
-With speed what force is left, and all employ \r
-In our defence; lest unawares we lose \r
-This our high place, our sanctuary, our hill. \r
-To whom the Son with calm aspect and clear, \r
-Lightning divine, ineffable, serene, \r
-Made answer. Mighty Father, thou thy foes \r
-Justly hast in derision, and, secure, \r
-Laughest at their vain designs and tumults vain, \r
-Matter to me of glory, whom their hate \r
-Illustrates, when they see all regal power \r
-Given me to quell their pride, and in event \r
-Know whether I be dextrous to subdue \r
-Thy rebels, or be found the worst in Heaven. \r
-So spake the Son; but Satan, with his Powers, \r
-Far was advanced on winged speed; an host \r
-Innumerable as the stars of night, \r
-Or stars of morning, dew-drops, which the sun \r
-Impearls on every leaf and every flower. \r
-Regions they passed, the mighty regencies \r
-Of Seraphim, and Potentates, and Thrones, \r
-In their triple degrees; regions to which \r
-All thy dominion, Adam, is no more \r
-Than what this garden is to all the earth, \r
-And all the sea, from one entire globose \r
-Stretched into longitude; which having passed, \r
-At length into the limits of the north \r
-They came; and Satan to his royal seat \r
-High on a hill, far blazing, as a mount \r
-Raised on a mount, with pyramids and towers \r
-From diamond quarries hewn, and rocks of gold; \r
-The palace of great Lucifer, (so call \r
-That structure in the dialect of men \r
-Interpreted,) which not long after, he \r
-Affecting all equality with God, \r
-In imitation of that mount whereon \r
-Messiah was declared in sight of Heaven, \r
-The Mountain of the Congregation called; \r
-For thither he assembled all his train, \r
-Pretending so commanded to consult \r
-About the great reception of their King, \r
-Thither to come, and with calumnious art \r
-Of counterfeited truth thus held their ears. \r
-Thrones, Dominations, Princedoms, Virtues, Powers; \r
-If these magnifick titles yet remain \r
-Not merely titular, since by decree \r
-Another now hath to himself engrossed \r
-All power, and us eclipsed under the name \r
-Of King anointed, for whom all this haste \r
-Of midnight-march, and hurried meeting here, \r
-This only to consult how we may best, \r
-With what may be devised of honours new, \r
-Receive him coming to receive from us \r
-Knee-tribute yet unpaid, prostration vile! \r
-Too much to one! but double how endured, \r
-To one, and to his image now proclaimed? \r
-But what if better counsels might erect \r
-Our minds, and teach us to cast off this yoke? \r
-Will ye submit your necks, and choose to bend \r
-The supple knee? Ye will not, if I trust \r
-To know ye right, or if ye know yourselves \r
-Natives and sons of Heaven possessed before \r
-By none; and if not equal all, yet free, \r
-Equally free; for orders and degrees \r
-Jar not with liberty, but well consist. \r
-Who can in reason then, or right, assume \r
-Monarchy over such as live by right \r
-His equals, if in power and splendour less, \r
-In freedom equal? or can introduce \r
-Law and edict on us, who without law \r
-Err not? much less for this to be our Lord, \r
-And look for adoration, to the abuse \r
-Of those imperial titles, which assert \r
-Our being ordained to govern, not to serve. \r
-Thus far his bold discourse without controul \r
-Had audience; when among the Seraphim \r
-Abdiel, than whom none with more zeal adored \r
-The Deity, and divine commands obeyed, \r
-Stood up, and in a flame of zeal severe \r
-The current of his fury thus opposed. \r
-O argument blasphemous, false, and proud! \r
-Words which no ear ever to hear in Heaven \r
-Expected, least of all from thee, Ingrate, \r
-In place thyself so high above thy peers. \r
-Canst thou with impious obloquy condemn \r
-The just decree of God, pronounced and sworn, \r
-That to his only Son, by right endued \r
-With regal scepter, every soul in Heaven \r
-Shall bend the knee, and in that honour due \r
-Confess him rightful King? unjust, thou sayest, \r
-Flatly unjust, to bind with laws the free, \r
-And equal over equals to let reign, \r
-One over all with unsucceeded power. \r
-Shalt thou give law to God? shalt thou dispute \r
-With him the points of liberty, who made \r
-Thee what thou art, and formed the Powers of Heaven \r
-Such as he pleased, and circumscribed their being? \r
-Yet, by experience taught, we know how good, \r
-And of our good and of our dignity \r
-How provident he is; how far from thought \r
-To make us less, bent rather to exalt \r
-Our happy state, under one head more near \r
-United. But to grant it thee unjust, \r
-That equal over equals monarch reign: \r
-Thyself, though great and glorious, dost thou count, \r
-Or all angelick nature joined in one, \r
-Equal to him begotten Son? by whom, \r
-As by his Word, the Mighty Father made \r
-All things, even thee; and all the Spirits of Heaven \r
-By him created in their bright degrees, \r
-Crowned them with glory, and to their glory named \r
-Thrones, Dominations, Princedoms, Virtues, Powers, \r
-Essential Powers; nor by his reign obscured, \r
-But more illustrious made; since he the head \r
-One of our number thus reduced becomes; \r
-His laws our laws; all honour to him done \r
-Returns our own. Cease then this impious rage, \r
-And tempt not these; but hasten to appease \r
-The incensed Father, and the incensed Son, \r
-While pardon may be found in time besought. \r
-So spake the fervent Angel; but his zeal \r
-None seconded, as out of season judged, \r
-Or singular and rash: Whereat rejoiced \r
-The Apostate, and, more haughty, thus replied. \r
-That we were formed then sayest thou? and the work \r
-Of secondary hands, by task transferred \r
-From Father to his Son? strange point and new! \r
-Doctrine which we would know whence learned: who saw \r
-When this creation was? rememberest thou \r
-Thy making, while the Maker gave thee being? \r
-We know no time when we were not as now; \r
-Know none before us, self-begot, self-raised \r
-By our own quickening power, when fatal course \r
-Had circled his full orb, the birth mature \r
-Of this our native Heaven, ethereal sons. \r
-Our puissance is our own; our own right hand \r
-Shall teach us highest deeds, by proof to try \r
-Who is our equal: Then thou shalt behold \r
-Whether by supplication we intend \r
-Address, and to begirt the almighty throne \r
-Beseeching or besieging. This report, \r
-These tidings carry to the anointed King; \r
-And fly, ere evil intercept thy flight. \r
-He said; and, as the sound of waters deep, \r
-Hoarse murmur echoed to his words applause \r
-Through the infinite host; nor less for that \r
-The flaming Seraph fearless, though alone \r
-Encompassed round with foes, thus answered bold. \r
-O alienate from God, O Spirit accursed, \r
-Forsaken of all good! I see thy fall \r
-Determined, and thy hapless crew involved \r
-In this perfidious fraud, contagion spread \r
-Both of thy crime and punishment: Henceforth \r
-No more be troubled how to quit the yoke \r
-Of God's Messiah; those indulgent laws \r
-Will not be now vouchsafed; other decrees \r
-Against thee are gone forth without recall; \r
-That golden scepter, which thou didst reject, \r
-Is now an iron rod to bruise and break \r
-Thy disobedience. Well thou didst advise; \r
-Yet not for thy advice or threats I fly \r
-These wicked tents devoted, lest the wrath \r
-Impendent, raging into sudden flame, \r
-Distinguish not: For soon expect to feel \r
-His thunder on thy head, devouring fire. \r
-Then who created thee lamenting learn, \r
-When who can uncreate thee thou shalt know. \r
-So spake the Seraph Abdiel, faithful found \r
-Among the faithless, faithful only he; \r
-Among innumerable false, unmoved, \r
-Unshaken, unseduced, unterrified, \r
-His loyalty he kept, his love, his zeal; \r
-Nor number, nor example, with him wrought \r
-To swerve from truth, or change his constant mind, \r
-Though single. From amidst them forth he passed, \r
-Long way through hostile scorn, which he sustained \r
-Superiour, nor of violence feared aught; \r
-And, with retorted scorn, his back he turned \r
-On those proud towers to swift destruction doomed. \r
- \r
- \r
- \r
-Book VI \r
- \r
- \r
-All night the dreadless Angel, unpursued, \r
-Through Heaven's wide champain held his way; till Morn, \r
-Waked by the circling Hours, with rosy hand \r
-Unbarred the gates of light. There is a cave \r
-Within the mount of God, fast by his throne, \r
-Where light and darkness in perpetual round \r
-Lodge and dislodge by turns, which makes through Heaven \r
-Grateful vicissitude, like day and night; \r
-Light issues forth, and at the other door \r
-Obsequious darkness enters, till her hour \r
-To veil the Heaven, though darkness there might well \r
-Seem twilight here: And now went forth the Morn \r
-Such as in highest Heaven arrayed in gold \r
-Empyreal; from before her vanished Night, \r
-Shot through with orient beams; when all the plain \r
-Covered with thick embattled squadrons bright, \r
-Chariots, and flaming arms, and fiery steeds, \r
-Reflecting blaze on blaze, first met his view: \r
-War he perceived, war in procinct; and found \r
-Already known what he for news had thought \r
-To have reported: Gladly then he mixed \r
-Among those friendly Powers, who him received \r
-With joy and acclamations loud, that one, \r
-That of so many myriads fallen, yet one \r
-Returned not lost. On to the sacred hill \r
-They led him high applauded, and present \r
-Before the seat supreme; from whence a voice, \r
-From midst a golden cloud, thus mild was heard. \r
-Servant of God. Well done; well hast thou fought \r
-The better fight, who single hast maintained \r
-Against revolted multitudes the cause \r
-Of truth, in word mightier than they in arms; \r
-And for the testimony of truth hast borne \r
-Universal reproach, far worse to bear \r
-Than violence; for this was all thy care \r
-To stand approved in sight of God, though worlds \r
-Judged thee perverse: The easier conquest now \r
-Remains thee, aided by this host of friends, \r
-Back on thy foes more glorious to return, \r
-Than scorned thou didst depart; and to subdue \r
-By force, who reason for their law refuse, \r
-Right reason for their law, and for their King \r
-Messiah, who by right of merit reigns. \r
-Go, Michael, of celestial armies prince, \r
-And thou, in military prowess next, \r
-Gabriel, lead forth to battle these my sons \r
-Invincible; lead forth my armed Saints, \r
-By thousands and by millions, ranged for fight, \r
-Equal in number to that Godless crew \r
-Rebellious: Them with fire and hostile arms \r
-Fearless assault; and, to the brow of Heaven \r
-Pursuing, drive them out from God and bliss, \r
-Into their place of punishment, the gulf \r
-Of Tartarus, which ready opens wide \r
-His fiery Chaos to receive their fall. \r
-So spake the Sovran Voice, and clouds began \r
-To darken all the hill, and smoke to roll \r
-In dusky wreaths, reluctant flames, the sign \r
-Of wrath awaked; nor with less dread the loud \r
-Ethereal trumpet from on high 'gan blow: \r
-At which command the Powers militant, \r
-That stood for Heaven, in mighty quadrate joined \r
-Of union irresistible, moved on \r
-In silence their bright legions, to the sound \r
-Of instrumental harmony, that breathed \r
-Heroick ardour to adventurous deeds \r
-Under their God-like leaders, in the cause \r
-Of God and his Messiah. On they move \r
-Indissolubly firm; nor obvious hill, \r
-Nor straitening vale, nor wood, nor stream, divides \r
-Their perfect ranks; for high above the ground \r
-Their march was, and the passive air upbore \r
-Their nimble tread; as when the total kind \r
-Of birds, in orderly array on wing, \r
-Came summoned over Eden to receive \r
-Their names of thee; so over many a tract \r
-Of Heaven they marched, and many a province wide, \r
-Tenfold the length of this terrene: At last, \r
-Far in the horizon to the north appeared \r
-From skirt to skirt a fiery region, stretched \r
-In battailous aspect, and nearer view \r
-Bristled with upright beams innumerable \r
-Of rigid spears, and helmets thronged, and shields \r
-Various, with boastful argument portrayed, \r
-The banded Powers of Satan hasting on \r
-With furious expedition; for they weened \r
-That self-same day, by fight or by surprise, \r
-To win the mount of God, and on his throne \r
-To set the Envier of his state, the proud \r
-Aspirer; but their thoughts proved fond and vain \r
-In the mid way: Though strange to us it seemed \r
-At first, that Angel should with Angel war, \r
-And in fierce hosting meet, who wont to meet \r
-So oft in festivals of joy and love \r
-Unanimous, as sons of one great Sire, \r
-Hymning the Eternal Father: But the shout \r
-Of battle now began, and rushing sound \r
-Of onset ended soon each milder thought. \r
-High in the midst, exalted as a God, \r
-The Apostate in his sun-bright chariot sat, \r
-Idol of majesty divine, enclosed \r
-With flaming Cherubim, and golden shields; \r
-Then lighted from his gorgeous throne, for now \r
-"twixt host and host but narrow space was left, \r
-A dreadful interval, and front to front \r
-Presented stood in terrible array \r
-Of hideous length: Before the cloudy van, \r
-On the rough edge of battle ere it joined, \r
-Satan, with vast and haughty strides advanced, \r
-Came towering, armed in adamant and gold; \r
-Abdiel that sight endured not, where he stood \r
-Among the mightiest, bent on highest deeds, \r
-And thus his own undaunted heart explores. \r
-O Heaven! that such resemblance of the Highest \r
-Should yet remain, where faith and realty \r
-Remain not: Wherefore should not strength and might \r
-There fail where virtue fails, or weakest prove \r
-Where boldest, though to fight unconquerable? \r
-His puissance, trusting in the Almighty's aid, \r
-I mean to try, whose reason I have tried \r
-Unsound and false; nor is it aught but just, \r
-That he, who in debate of truth hath won, \r
-Should win in arms, in both disputes alike \r
-Victor; though brutish that contest and foul, \r
-When reason hath to deal with force, yet so \r
-Most reason is that reason overcome. \r
-So pondering, and from his armed peers \r
-Forth stepping opposite, half-way he met \r
-His daring foe, at this prevention more \r
-Incensed, and thus securely him defied. \r
-Proud, art thou met? thy hope was to have reached \r
-The highth of thy aspiring unopposed, \r
-The throne of God unguarded, and his side \r
-Abandoned, at the terrour of thy power \r
-Or potent tongue: Fool!not to think how vain \r
-Against the Omnipotent to rise in arms; \r
-Who out of smallest things could, without end, \r
-Have raised incessant armies to defeat \r
-Thy folly; or with solitary hand \r
-Reaching beyond all limit, at one blow, \r
-Unaided, could have finished thee, and whelmed \r
-Thy legions under darkness: But thou seest \r
-All are not of thy train; there be, who faith \r
-Prefer, and piety to God, though then \r
-To thee not visible, when I alone \r
-Seemed in thy world erroneous to dissent \r
-From all: My sect thou seest;now learn too late \r
-How few sometimes may know, when thousands err. \r
-Whom the grand foe, with scornful eye askance, \r
-Thus answered. Ill for thee, but in wished hour \r
-Of my revenge, first sought for, thou returnest \r
-From flight, seditious Angel! to receive \r
-Thy merited reward, the first assay \r
-Of this right hand provoked, since first that tongue, \r
-Inspired with contradiction, durst oppose \r
-A third part of the Gods, in synod met \r
-Their deities to assert; who, while they feel \r
-Vigour divine within them, can allow \r
-Omnipotence to none. But well thou comest \r
-Before thy fellows, ambitious to win \r
-From me some plume, that thy success may show \r
-Destruction to the rest: This pause between, \r
-(Unanswered lest thou boast) to let thee know, \r
-At first I thought that Liberty and Heaven \r
-To heavenly souls had been all one; but now \r
-I see that most through sloth had rather serve, \r
-Ministring Spirits, trained up in feast and song! \r
-Such hast thou armed, the minstrelsy of Heaven, \r
-Servility with freedom to contend, \r
-As both their deeds compared this day shall prove. \r
-To whom in brief thus Abdiel stern replied. \r
-Apostate! still thou errest, nor end wilt find \r
-Of erring, from the path of truth remote: \r
-Unjustly thou depravest it with the name \r
-Of servitude, to serve whom God ordains, \r
-Or Nature: God and Nature bid the same, \r
-When he who rules is worthiest, and excels \r
-Them whom he governs. This is servitude, \r
-To serve the unwise, or him who hath rebelled \r
-Against his worthier, as thine now serve thee, \r
-Thyself not free, but to thyself enthralled; \r
-Yet lewdly darest our ministring upbraid. \r
-Reign thou in Hell, thy kingdom; let me serve \r
-In Heaven God ever blest, and his divine \r
-Behests obey, worthiest to be obeyed; \r
-Yet chains in Hell, not realms, expect: Mean while \r
-From me returned, as erst thou saidst, from flight, \r
-This greeting on thy impious crest receive. \r
-So saying, a noble stroke he lifted high, \r
-Which hung not, but so swift with tempest fell \r
-On the proud crest of Satan, that no sight, \r
-Nor motion of swift thought, less could his shield, \r
-Such ruin intercept: Ten paces huge \r
-He back recoiled; the tenth on bended knee \r
-His massy spear upstaid; as if on earth \r
-Winds under ground, or waters forcing way, \r
-Sidelong had pushed a mountain from his seat, \r
-Half sunk with all his pines. Amazement seised \r
-The rebel Thrones, but greater rage, to see \r
-Thus foiled their mightiest; ours joy filled, and shout, \r
-Presage of victory, and fierce desire \r
-Of battle: Whereat Michael bid sound \r
-The Arch-Angel trumpet; through the vast of Heaven \r
-It sounded, and the faithful armies rung \r
-Hosanna to the Highest: Nor stood at gaze \r
-The adverse legions, nor less hideous joined \r
-The horrid shock. Now storming fury rose, \r
-And clamour such as heard in Heaven till now \r
-Was never; arms on armour clashing brayed \r
-Horrible discord, and the madding wheels \r
-Of brazen chariots raged; dire was the noise \r
-Of conflict; over head the dismal hiss \r
-Of fiery darts in flaming vollies flew, \r
-And flying vaulted either host with fire. \r
-So under fiery cope together rushed \r
-Both battles main, with ruinous assault \r
-And inextinguishable rage. All Heaven \r
-Resounded; and had Earth been then, all Earth \r
-Had to her center shook. What wonder? when \r
-Millions of fierce encountering Angels fought \r
-On either side, the least of whom could wield \r
-These elements, and arm him with the force \r
-Of all their regions: How much more of power \r
-Army against army numberless to raise \r
-Dreadful combustion warring, and disturb, \r
-Though not destroy, their happy native seat; \r
-Had not the Eternal King Omnipotent, \r
-From his strong hold of Heaven, high over-ruled \r
-And limited their might; though numbered such \r
-As each divided legion might have seemed \r
-A numerous host; in strength each armed hand \r
-A legion; led in fight, yet leader seemed \r
-Each warriour single as in chief, expert \r
-When to advance, or stand, or turn the sway \r
-Of battle, open when, and when to close \r
-The ridges of grim war: No thought of flight, \r
-None of retreat, no unbecoming deed \r
-That argued fear; each on himself relied, \r
-As only in his arm the moment lay \r
-Of victory: Deeds of eternal fame \r
-Were done, but infinite; for wide was spread \r
-That war and various; sometimes on firm ground \r
-A standing fight, then, soaring on main wing, \r
-Tormented all the air; all air seemed then \r
-Conflicting fire. Long time in even scale \r
-The battle hung; till Satan, who that day \r
-Prodigious power had shown, and met in arms \r
-No equal, ranging through the dire attack \r
-Of fighting Seraphim confused, at length \r
-Saw where the sword of Michael smote, and felled \r
-Squadrons at once; with huge two-handed sway \r
-Brandished aloft, the horrid edge came down \r
-Wide-wasting; such destruction to withstand \r
-He hasted, and opposed the rocky orb \r
-Of tenfold adamant, his ample shield, \r
-A vast circumference. At his approach \r
-The great Arch-Angel from his warlike toil \r
-Surceased, and glad, as hoping here to end \r
-Intestine war in Heaven, the arch-foe subdued \r
-Or captive dragged in chains, with hostile frown \r
-And visage all inflamed first thus began. \r
-Author of evil, unknown till thy revolt, \r
-Unnamed in Heaven, now plenteous as thou seest \r
-These acts of hateful strife, hateful to all, \r
-Though heaviest by just measure on thyself, \r
-And thy adherents: How hast thou disturbed \r
-Heaven's blessed peace, and into nature brought \r
-Misery, uncreated till the crime \r
-Of thy rebellion! how hast thou instilled \r
-Thy malice into thousands, once upright \r
-And faithful, now proved false! But think not here \r
-To trouble holy rest; Heaven casts thee out \r
-From all her confines. Heaven, the seat of bliss, \r
-Brooks not the works of violence and war. \r
-Hence then, and evil go with thee along, \r
-Thy offspring, to the place of evil, Hell; \r
-Thou and thy wicked crew! there mingle broils, \r
-Ere this avenging sword begin thy doom, \r
-Or some more sudden vengeance, winged from God, \r
-Precipitate thee with augmented pain. \r
-So spake the Prince of Angels; to whom thus \r
-The Adversary. Nor think thou with wind \r
-Of aery threats to awe whom yet with deeds \r
-Thou canst not. Hast thou turned the least of these \r
-To flight, or if to fall, but that they rise \r
-Unvanquished, easier to transact with me \r
-That thou shouldst hope, imperious, and with threats \r
-To chase me hence? err not, that so shall end \r
-The strife which thou callest evil, but we style \r
-The strife of glory; which we mean to win, \r
-Or turn this Heaven itself into the Hell \r
-Thou fablest; here however to dwell free, \r
-If not to reign: Mean while thy utmost force, \r
-And join him named Almighty to thy aid, \r
-I fly not, but have sought thee far and nigh. \r
-They ended parle, and both addressed for fight \r
-Unspeakable; for who, though with the tongue \r
-Of Angels, can relate, or to what things \r
-Liken on earth conspicuous, that may lift \r
-Human imagination to such highth \r
-Of Godlike power? for likest Gods they seemed, \r
-Stood they or moved, in stature, motion, arms, \r
-Fit to decide the empire of great Heaven. \r
-Now waved their fiery swords, and in the air \r
-Made horrid circles; two broad suns their shields \r
-Blazed opposite, while Expectation stood \r
-In horrour: From each hand with speed retired, \r
-Where erst was thickest fight, the angelick throng, \r
-And left large field, unsafe within the wind \r
-Of such commotion; such as, to set forth \r
-Great things by small, if, nature's concord broke, \r
-Among the constellations war were sprung, \r
-Two planets, rushing from aspect malign \r
-Of fiercest opposition, in mid sky \r
-Should combat, and their jarring spheres confound. \r
-Together both with next to almighty arm \r
-Up-lifted imminent, one stroke they aimed \r
-That might determine, and not need repeat, \r
-As not of power at once; nor odds appeared \r
-In might or swift prevention: But the sword \r
-Of Michael from the armoury of God \r
-Was given him tempered so, that neither keen \r
-Nor solid might resist that edge: it met \r
-The sword of Satan, with steep force to smite \r
-Descending, and in half cut sheer; nor staid, \r
-But with swift wheel reverse, deep entering, shared \r
-All his right side: Then Satan first knew pain, \r
-And writhed him to and fro convolved; so sore \r
-The griding sword with discontinuous wound \r
-Passed through him: But the ethereal substance closed, \r
-Not long divisible; and from the gash \r
-A stream of necturous humour issuing flowed \r
-Sanguine, such as celestial Spirits may bleed, \r
-And all his armour stained, ere while so bright. \r
-Forthwith on all sides to his aid was run \r
-By Angels many and strong, who interposed \r
-Defence, while others bore him on their shields \r
-Back to his chariot, where it stood retired \r
-From off the files of war: There they him laid \r
-Gnashing for anguish, and despite, and shame, \r
-To find himself not matchless, and his pride \r
-Humbled by such rebuke, so far beneath \r
-His confidence to equal God in power. \r
-Yet soon he healed; for Spirits that live throughout \r
-Vital in every part, not as frail man \r
-In entrails, heart of head, liver or reins, \r
-Cannot but by annihilating die; \r
-Nor in their liquid texture mortal wound \r
-Receive, no more than can the fluid air: \r
-All heart they live, all head, all eye, all ear, \r
-All intellect, all sense; and, as they please, \r
-They limb themselves, and colour, shape, or size \r
-Assume, as?kikes them best, condense or rare. \r
-Mean while in other parts like deeds deserved \r
-Memorial, where the might of Gabriel fought, \r
-And with fierce ensigns pierced the deep array \r
-Of Moloch, furious king; who him defied, \r
-And at his chariot-wheels to drag him bound \r
-Threatened, nor from the Holy One of Heaven \r
-Refrained his tongue blasphemous; but anon \r
-Down cloven to the waist, with shattered arms \r
-And uncouth pain fled bellowing. On each wing \r
-Uriel, and Raphael, his vaunting foe, \r
-Though huge, and in a rock of diamond armed, \r
-Vanquished Adramelech, and Asmadai, \r
-Two potent Thrones, that to be less than Gods \r
-Disdained, but meaner thoughts learned in their flight, \r
-Mangled with ghastly wounds through plate and mail. \r
-Nor stood unmindful Abdiel to annoy \r
-The atheist crew, but with redoubled blow \r
-Ariel, and Arioch, and the violence \r
-Of Ramiel scorched and blasted, overthrew. \r
-I might relate of thousands, and their names \r
-Eternize here on earth; but those elect \r
-Angels, contented with their fame in Heaven, \r
-Seek not the praise of men: The other sort, \r
-In might though wonderous and in acts of war, \r
-Nor of renown less eager, yet by doom \r
-Cancelled from Heaven and sacred memory, \r
-Nameless in dark oblivion let them dwell. \r
-For strength from truth divided, and from just, \r
-Illaudable, nought merits but dispraise \r
-And ignominy; yet to glory aspires \r
-Vain-glorious, and through infamy seeks fame: \r
-Therefore eternal silence be their doom. \r
-And now, their mightiest quelled, the battle swerved, \r
-With many an inroad gored; deformed rout \r
-Entered, and foul disorder; all the ground \r
-With shivered armour strown, and on a heap \r
-Chariot and charioteer lay overturned, \r
-And fiery-foaming steeds; what stood, recoiled \r
-O'er-wearied, through the faint Satanick host \r
-Defensive scarce, or with pale fear surprised, \r
-Then first with fear surprised, and sense of pain, \r
-Fled ignominious, to such evil brought \r
-By sin of disobedience; till that hour \r
-Not liable to fear, or flight, or pain. \r
-Far otherwise the inviolable Saints, \r
-In cubick phalanx firm, advanced entire, \r
-Invulnerable, impenetrably armed; \r
-Such high advantages their innocence \r
-Gave them above their foes; not to have sinned, \r
-Not to have disobeyed; in fight they stood \r
-Unwearied, unobnoxious to be pained \r
-By wound, though from their place by violence moved, \r
-Now Night her course began, and, over Heaven \r
-Inducing darkness, grateful truce imposed, \r
-And silence on the odious din of war: \r
-Under her cloudy covert both retired, \r
-Victor and vanquished: On the foughten field \r
-Michael and his Angels prevalent \r
-Encamping, placed in guard their watches round, \r
-Cherubick waving fires: On the other part, \r
-Satan with his rebellious disappeared, \r
-Far in the dark dislodged; and, void of rest, \r
-His potentates to council called by night; \r
-And in the midst thus undismayed began. \r
-O now in danger tried, now known in arms \r
-Not to be overpowered, Companions dear, \r
-Found worthy not of liberty alone, \r
-Too mean pretence! but what we more affect, \r
-Honour, dominion, glory, and renown; \r
-Who have sustained one day in doubtful fight, \r
-(And if one day, why not eternal days?) \r
-What Heaven's Lord had powerfullest to send \r
-Against us from about his throne, and judged \r
-Sufficient to subdue us to his will, \r
-But proves not so: Then fallible, it seems, \r
-Of future we may deem him, though till now \r
-Omniscient thought. True is, less firmly armed, \r
-Some disadvantage we endured and pain, \r
-Till now not known, but, known, as soon contemned; \r
-Since now we find this our empyreal form \r
-Incapable of mortal injury, \r
-Imperishable, and, though pierced with wound, \r
-Soon closing, and by native vigour healed. \r
-Of evil then so small as easy think \r
-The remedy; perhaps more valid arms, \r
-Weapons more violent, when next we meet, \r
-May serve to better us, and worse our foes, \r
-Or equal what between us made the odds, \r
-In nature none: If other hidden cause \r
-Left them superiour, while we can preserve \r
-Unhurt our minds, and understanding sound, \r
-Due search and consultation will disclose. \r
-He sat; and in the assembly next upstood \r
-Nisroch, of Principalities the prime; \r
-As one he stood escaped from cruel fight, \r
-Sore toiled, his riven arms to havock hewn, \r
-And cloudy in aspect thus answering spake. \r
-Deliverer from new Lords, leader to free \r
-Enjoyment of our right as Gods; yet hard \r
-For Gods, and too unequal work we find, \r
-Against unequal arms to fight in pain, \r
-Against unpained, impassive; from which evil \r
-Ruin must needs ensue; for what avails \r
-Valour or strength, though matchless, quelled with pain \r
-Which all subdues, and makes remiss the hands \r
-Of mightiest? Sense of pleasure we may well \r
-Spare out of life perhaps, and not repine, \r
-But live content, which is the calmest life: \r
-But pain is perfect misery, the worst \r
-Of evils, and, excessive, overturns \r
-All patience. He, who therefore can invent \r
-With what more forcible we may offend \r
-Our yet unwounded enemies, or arm \r
-Ourselves with like defence, to me deserves \r
-No less than for deliverance what we owe. \r
-Whereto with look composed Satan replied. \r
-Not uninvented that, which thou aright \r
-Believest so main to our success, I bring. \r
-Which of us who beholds the bright surface \r
-Of this ethereous mould whereon we stand, \r
-This continent of spacious Heaven, adorned \r
-With plant, fruit, flower ambrosial, gems, and gold; \r
-Whose eye so superficially surveys \r
-These things, as not to mind from whence they grow \r
-Deep under ground, materials dark and crude, \r
-Of spiritous and fiery spume, till touched \r
-With Heaven's ray, and tempered, they shoot forth \r
-So beauteous, opening to the ambient light? \r
-These in their dark nativity the deep \r
-Shall yield us, pregnant with infernal flame; \r
-Which, into hollow engines, long and round, \r
-Thick rammed, at the other bore with touch of fire \r
-Dilated and infuriate, shall send forth \r
-From far, with thundering noise, among our foes \r
-Such implements of mischief, as shall dash \r
-To pieces, and o'erwhelm whatever stands \r
-Adverse, that they shall fear we have disarmed \r
-The Thunderer of his only dreaded bolt. \r
-Nor long shall be our labour; yet ere dawn, \r
-Effect shall end our wish. Mean while revive; \r
-Abandon fear; to strength and counsel joined \r
-Think nothing hard, much less to be despaired. \r
-He ended, and his words their drooping cheer \r
-Enlightened, and their languished hope revived. \r
-The invention all admired, and each, how he \r
-To be the inventer missed; so easy it seemed \r
-Once found, which yet unfound most would have thought \r
-Impossible: Yet, haply, of thy race \r
-In future days, if malice should abound, \r
-Some one intent on mischief, or inspired \r
-With devilish machination, might devise \r
-Like instrument to plague the sons of men \r
-For sin, on war and mutual slaughter bent. \r
-Forthwith from council to the work they flew; \r
-None arguing stood; innumerable hands \r
-Were ready; in a moment up they turned \r
-Wide the celestial soil, and saw beneath \r
-The originals of nature in their crude \r
-Conception; sulphurous and nitrous foam \r
-They found, they mingled, and, with subtle art, \r
-Concocted and adusted they reduced \r
-To blackest grain, and into store conveyed: \r
-Part hidden veins digged up (nor hath this earth \r
-Entrails unlike) of mineral and stone, \r
-Whereof to found their engines and their balls \r
-Of missive ruin; part incentive reed \r
-Provide, pernicious with one touch to fire. \r
-So all ere day-spring, under conscious night, \r
-Secret they finished, and in order set, \r
-With silent circumspection, unespied. \r
-Now when fair morn orient in Heaven appeared, \r
-Up rose the victor-Angels, and to arms \r
-The matin trumpet sung: In arms they stood \r
-Of golden panoply, refulgent host, \r
-Soon banded; others from the dawning hills \r
-Look round, and scouts each coast light-armed scour, \r
-Each quarter to descry the distant foe, \r
-Where lodged, or whither fled, or if for fight, \r
-In motion or in halt: Him soon they met \r
-Under spread ensigns moving nigh, in slow \r
-But firm battalion; back with speediest sail \r
-Zophiel, of Cherubim the swiftest wing, \r
-Came flying, and in mid air aloud thus cried. \r
-Arm, Warriours, arm for fight; the foe at hand, \r
-Whom fled we thought, will save us long pursuit \r
-This day; fear not his flight;so thick a cloud \r
-He comes, and settled in his face I see \r
-Sad resolution, and secure: Let each \r
-His adamantine coat gird well, and each \r
-Fit well his helm, gripe fast his orbed shield, \r
-Borne even or high; for this day will pour down, \r
-If I conjecture aught, no drizzling shower, \r
-But rattling storm of arrows barbed with fire. \r
-So warned he them, aware themselves, and soon \r
-In order, quit of all impediment; \r
-Instant without disturb they took alarm, \r
-And onward moved embattled: When behold! \r
-Not distant far with heavy pace the foe \r
-Approaching gross and huge, in hollow cube \r
-Training his devilish enginery, impaled \r
-On every side with shadowing squadrons deep, \r
-To hide the fraud. At interview both stood \r
-A while; but suddenly at head appeared \r
-Satan, and thus was heard commanding loud. \r
-Vanguard, to right and left the front unfold; \r
-That all may see who hate us, how we seek \r
-Peace and composure, and with open breast \r
-Stand ready to receive them, if they like \r
-Our overture; and turn not back perverse: \r
-But that I doubt; however witness, Heaven! \r
-Heaven, witness thou anon! while we discharge \r
-Freely our part: ye, who appointed stand \r
-Do as you have in charge, and briefly touch \r
-What we propound, and loud that all may hear! \r
-So scoffing in ambiguous words, he scarce \r
-Had ended; when to right and left the front \r
-Divided, and to either flank retired: \r
-Which to our eyes discovered, new and strange, \r
-A triple mounted row of pillars laid \r
-On wheels (for like to pillars most they seemed, \r
-Or hollowed bodies made of oak or fir, \r
-With branches lopt, in wood or mountain felled,) \r
-Brass, iron, stony mould, had not their mouths \r
-With hideous orifice gaped on us wide, \r
-Portending hollow truce: At each behind \r
-A Seraph stood, and in his hand a reed \r
-Stood waving tipt with fire; while we, suspense, \r
-Collected stood within our thoughts amused, \r
-Not long; for sudden all at once their reeds \r
-Put forth, and to a narrow vent applied \r
-With nicest touch. Immediate in a flame, \r
-But soon obscured with smoke, all Heaven appeared, \r
-From those deep-throated engines belched, whose roar \r
-Embowelled with outrageous noise the air, \r
-And all her entrails tore, disgorging foul \r
-Their devilish glut, chained thunderbolts and hail \r
-Of iron globes; which, on the victor host \r
-Levelled, with such impetuous fury smote, \r
-That, whom they hit, none on their feet might stand, \r
-Though standing else as rocks, but down they fell \r
-By thousands, Angel on Arch-Angel rolled; \r
-The sooner for their arms; unarmed, they might \r
-Have easily, as Spirits, evaded swift \r
-By quick contraction or remove; but now \r
-Foul dissipation followed, and forced rout; \r
-Nor served it to relax their serried files. \r
-What should they do? if on they rushed, repulse \r
-Repeated, and indecent overthrow \r
-Doubled, would render them yet more despised, \r
-And to their foes a laughter; for in view \r
-Stood ranked of Seraphim another row, \r
-In posture to displode their second tire \r
-Of thunder: Back defeated to return \r
-They worse abhorred. Satan beheld their plight, \r
-And to his mates thus in derision called. \r
-O Friends! why come not on these victors proud \r
-Ere while they fierce were coming; and when we, \r
-To entertain them fair with open front \r
-And breast, (what could we more?) propounded terms \r
-Of composition, straight they changed their minds, \r
-Flew off, and into strange vagaries fell, \r
-As they would dance; yet for a dance they seemed \r
-Somewhat extravagant and wild; perhaps \r
-For joy of offered peace: But I suppose, \r
-If our proposals once again were heard, \r
-We should compel them to a quick result. \r
-To whom thus Belial, in like gamesome mood. \r
-Leader! the terms we sent were terms of weight, \r
-Of hard contents, and full of force urged home; \r
-Such as we might perceive amused them all, \r
-And stumbled many: Who receives them right, \r
-Had need from head to foot well understand; \r
-Not understood, this gift they have besides, \r
-They show us when our foes walk not upright. \r
-So they among themselves in pleasant vein \r
-Stood scoffing, hightened in their thoughts beyond \r
-All doubt of victory: Eternal Might \r
-To match with their inventions they presumed \r
-So easy, and of his thunder made a scorn, \r
-And all his host derided, while they stood \r
-A while in trouble: But they stood not long; \r
-Rage prompted them at length, and found them arms \r
-Against such hellish mischief fit to oppose. \r
-Forthwith (behold the excellence, the power, \r
-Which God hath in his mighty Angels placed!) \r
-Their arms away they threw, and to the hills \r
-(For Earth hath this variety from Heaven \r
-Of pleasure situate in hill and dale,) \r
-Light as the lightning glimpse they ran, they flew; \r
-From their foundations loosening to and fro, \r
-They plucked the seated hills, with all their load, \r
-Rocks, waters, woods, and by the shaggy tops \r
-Up-lifting bore them in their hands: Amaze, \r
-Be sure, and terrour, seized the rebel host, \r
-When coming towards them so dread they saw \r
-The bottom of the mountains upward turned; \r
-Till on those cursed engines' triple-row \r
-They saw them whelmed, and all their confidence \r
-Under the weight of mountains buried deep; \r
-Themselves invaded next, and on their heads \r
-Main promontories flung, which in the air \r
-Came shadowing, and oppressed whole legions armed; \r
-Their armour helped their harm, crushed in and bruised \r
-Into their substance pent, which wrought them pain \r
-Implacable, and many a dolorous groan; \r
-Long struggling underneath, ere they could wind \r
-Out of such prison, though Spirits of purest light, \r
-Purest at first, now gross by sinning grown. \r
-The rest, in imitation, to like arms \r
-Betook them, and the neighbouring hills uptore: \r
-So hills amid the air encountered hills, \r
-Hurled to and fro with jaculation dire; \r
-That under ground they fought in dismal shade; \r
-Infernal noise! war seemed a civil game \r
-To this uproar; horrid confusion heaped \r
-Upon confusion rose: And now all Heaven \r
-Had gone to wrack, with ruin overspread; \r
-Had not the Almighty Father, where he sits \r
-Shrined in his sanctuary of Heaven secure, \r
-Consulting on the sum of things, foreseen \r
-This tumult, and permitted all, advised: \r
-That his great purpose he might so fulfil, \r
-To honour his anointed Son avenged \r
-Upon his enemies, and to declare \r
-All power on him transferred: Whence to his Son, \r
-The Assessour of his throne, he thus began. \r
-Effulgence of my glory, Son beloved, \r
-Son, in whose face invisible is beheld \r
-Visibly, what by Deity I am; \r
-And in whose hand what by decree I do, \r
-Second Omnipotence! two days are past, \r
-Two days, as we compute the days of Heaven, \r
-Since Michael and his Powers went forth to tame \r
-These disobedient: Sore hath been their fight, \r
-As likeliest was, when two such foes met armed; \r
-For to themselves I left them; and thou knowest, \r
-Equal in their creation they were formed, \r
-Save what sin hath impaired; which yet hath wrought \r
-Insensibly, for I suspend their doom; \r
-Whence in perpetual fight they needs must last \r
-Endless, and no solution will be found: \r
-War wearied hath performed what war can do, \r
-And to disordered rage let loose the reins \r
-With mountains, as with weapons, armed; which makes \r
-Wild work in Heaven, and dangerous to the main. \r
-Two days are therefore past, the third is thine; \r
-For thee I have ordained it; and thus far \r
-Have suffered, that the glory may be thine \r
-Of ending this great war, since none but Thou \r
-Can end it. Into thee such virtue and grace \r
-Immense I have transfused, that all may know \r
-In Heaven and Hell thy power above compare; \r
-And, this perverse commotion governed thus, \r
-To manifest thee worthiest to be Heir \r
-Of all things; to be Heir, and to be King \r
-By sacred unction, thy deserved right. \r
-Go then, Thou Mightiest, in thy Father's might; \r
-Ascend my chariot, guide the rapid wheels \r
-That shake Heaven's basis, bring forth all my war, \r
-My bow and thunder, my almighty arms \r
-Gird on, and sword upon thy puissant thigh; \r
-Pursue these sons of darkness, drive them out \r
-From all Heaven's bounds into the utter deep: \r
-There let them learn, as likes them, to despise \r
-God, and Messiah his anointed King. \r
-He said, and on his Son with rays direct \r
-Shone full; he all his Father full expressed \r
-Ineffably into his face received; \r
-And thus the Filial Godhead answering spake. \r
-O Father, O Supreme of heavenly Thrones, \r
-First, Highest, Holiest, Best; thou always seek'st \r
-To glorify thy Son, I always thee, \r
-As is most just: This I my glory account, \r
-My exaltation, and my whole delight, \r
-That thou, in me well pleased, declarest thy will \r
-Fulfilled, which to fulfil is all my bliss. \r
-Scepter and power, thy giving, I assume, \r
-And gladlier shall resign, when in the end \r
-Thou shalt be all in all, and I in thee \r
-For ever; and in me all whom thou lovest: \r
-But whom thou hatest, I hate, and can put on \r
-Thy terrours, as I put thy mildness on, \r
-Image of thee in all things; and shall soon, \r
-Armed with thy might, rid Heaven of these rebelled; \r
-To their prepared ill mansion driven down, \r
-To chains of darkness, and the undying worm; \r
-That from thy just obedience could revolt, \r
-Whom to obey is happiness entire. \r
-Then shall thy Saints unmixed, and from the impure \r
-Far separate, circling thy holy mount, \r
-Unfeigned Halleluiahs to thee sing, \r
-Hymns of high praise, and I among them Chief. \r
-So said, he, o'er his scepter bowing, rose \r
-From the right hand of Glory where he sat; \r
-And the third sacred morn began to shine, \r
-Dawning through Heaven. Forth rushed with whirlwind sound \r
-The chariot of Paternal Deity, \r
-Flashing thick flames, wheel within wheel undrawn, \r
-Itself instinct with Spirit, but convoyed \r
-By four Cherubick shapes; four faces each \r
-Had wonderous; as with stars, their bodies all \r
-And wings were set with eyes; with eyes the wheels \r
-Of beryl, and careering fires between; \r
-Over their heads a crystal firmament, \r
-Whereon a sapphire throne, inlaid with pure \r
-Amber, and colours of the showery arch. \r
-He, in celestial panoply all armed \r
-Of radiant Urim, work divinely wrought, \r
-Ascended; at his right hand Victory \r
-Sat eagle-winged; beside him hung his bow \r
-And quiver with three-bolted thunder stored; \r
-And from about him fierce effusion rolled \r
-Of smoke, and bickering flame, and sparkles dire: \r
-Attended with ten thousand thousand Saints, \r
-He onward came; far off his coming shone; \r
-And twenty thousand (I their number heard) \r
-Chariots of God, half on each hand, were seen; \r
-He on the wings of Cherub rode sublime \r
-On the crystalline sky, in sapphire throned, \r
-Illustrious far and wide; but by his own \r
-First seen: Them unexpected joy surprised, \r
-When the great ensign of Messiah blazed \r
-Aloft by Angels borne, his sign in Heaven; \r
-Under whose conduct Michael soon reduced \r
-His army, circumfused on either wing, \r
-Under their Head imbodied all in one. \r
-Before him Power Divine his way prepared; \r
-At his command the uprooted hills retired \r
-Each to his place; they heard his voice, and went \r
-Obsequious; Heaven his wonted face renewed, \r
-And with fresh flowerets hill and valley smiled. \r
-This saw his hapless foes, but stood obdured, \r
-And to rebellious fight rallied their Powers, \r
-Insensate, hope conceiving from despair. \r
-In heavenly Spirits could such perverseness dwell? \r
-But to convince the proud what signs avail, \r
-Or wonders move the obdurate to relent? \r
-They, hardened more by what might most reclaim, \r
-Grieving to see his glory, at the sight \r
-Took envy; and, aspiring to his highth, \r
-Stood re-embattled fierce, by force or fraud \r
-Weening to prosper, and at length prevail \r
-Against God and Messiah, or to fall \r
-In universal ruin last; and now \r
-To final battle drew, disdaining flight, \r
-Or faint retreat; when the great Son of God \r
-To all his host on either hand thus spake. \r
-Stand still in bright array, ye Saints; here stand, \r
-Ye Angels armed; this day from battle rest: \r
-Faithful hath been your warfare, and of God \r
-Accepted, fearless in his righteous cause; \r
-And as ye have received, so have ye done, \r
-Invincibly: But of this cursed crew \r
-The punishment to other hand belongs; \r
-Vengeance is his, or whose he sole appoints: \r
-Number to this day's work is not ordained, \r
-Nor multitude; stand only, and behold \r
-God's indignation on these godless poured \r
-By me; not you, but me, they have despised, \r
-Yet envied; against me is all their rage, \r
-Because the Father, to whom in Heaven s'preme \r
-Kingdom, and power, and glory appertains, \r
-Hath honoured me, according to his will. \r
-Therefore to me their doom he hath assigned; \r
-That they may have their wish, to try with me \r
-In battle which the stronger proves; they all, \r
-Or I alone against them; since by strength \r
-They measure all, of other excellence \r
-Not emulous, nor care who them excels; \r
-Nor other strife with them do I vouchsafe. \r
-So spake the Son, and into terrour changed \r
-His countenance too severe to be beheld, \r
-And full of wrath bent on his enemies. \r
-At once the Four spread out their starry wings \r
-With dreadful shade contiguous, and the orbs \r
-Of his fierce chariot rolled, as with the sound \r
-Of torrent floods, or of a numerous host. \r
-He on his impious foes right onward drove, \r
-Gloomy as night; under his burning wheels \r
-The stedfast empyrean shook throughout, \r
-All but the throne itself of God. Full soon \r
-Among them he arrived; in his right hand \r
-Grasping ten thousand thunders, which he sent \r
-Before him, such as in their souls infixed \r
-Plagues: They, astonished, all resistance lost, \r
-All courage; down their idle weapons dropt: \r
-O'er shields, and helms, and helmed heads he rode \r
-Of Thrones and mighty Seraphim prostrate, \r
-That wished the mountains now might be again \r
-Thrown on them, as a shelter from his ire. \r
-Nor less on either side tempestuous fell \r
-His arrows, from the fourfold-visaged Four \r
-Distinct with eyes, and from the living wheels \r
-Distinct alike with multitude of eyes; \r
-One Spirit in them ruled; and every eye \r
-Glared lightning, and shot forth pernicious fire \r
-Among the accursed, that withered all their strength, \r
-And of their wonted vigour left them drained, \r
-Exhausted, spiritless, afflicted, fallen. \r
-Yet half his strength he put not forth, but checked \r
-His thunder in mid volley; for he meant \r
-Not to destroy, but root them out of Heaven: \r
-The overthrown he raised, and as a herd \r
-Of goats or timorous flock together thronged \r
-Drove them before him thunder-struck, pursued \r
-With terrours, and with furies, to the bounds \r
-And crystal wall of Heaven; which, opening wide, \r
-Rolled inward, and a spacious gap disclosed \r
-Into the wasteful deep: The monstrous sight \r
-Struck them with horrour backward, but far worse \r
-Urged them behind: Headlong themselves they threw \r
-Down from the verge of Heaven; eternal wrath \r
-Burnt after them to the bottomless pit. \r
-Hell heard the unsufferable noise, Hell saw \r
-Heaven ruining from Heaven, and would have fled \r
-Affrighted; but strict Fate had cast too deep \r
-Her dark foundations, and too fast had bound. \r
-Nine days they fell: Confounded Chaos roared, \r
-And felt tenfold confusion in their fall \r
-Through his wild anarchy, so huge a rout \r
-Incumbered him with ruin: Hell at last \r
-Yawning received them whole, and on them closed; \r
-Hell, their fit habitation, fraught with fire \r
-Unquenchable, the house of woe and pain. \r
-Disburdened Heaven rejoiced, and soon repaired \r
-Her mural breach, returning whence it rolled. \r
-Sole victor, from the expulsion of his foes, \r
-Messiah his triumphal chariot turned: \r
-To meet him all his Saints, who silent stood \r
-Eye-witnesses of his almighty acts, \r
-With jubilee advanced; and, as they went, \r
-Shaded with branching palm, each Order bright, \r
-Sung triumph, and him sung victorious King, \r
-Son, Heir, and Lord, to him dominion given, \r
-Worthiest to reign: He, celebrated, rode \r
-Triumphant through mid Heaven, into the courts \r
-And temple of his Mighty Father throned \r
-On high; who into glory him received, \r
-Where now he sits at the right hand of bliss. \r
-Thus, measuring things in Heaven by things on Earth, \r
-At thy request, and that thou mayest beware \r
-By what is past, to thee I have revealed \r
-What might have else to human race been hid; \r
-The discord which befel, and war in Heaven \r
-Among the angelick Powers, and the deep fall \r
-Of those too high aspiring, who rebelled \r
-With Satan; he who envies now thy state, \r
-Who now is plotting how he may seduce \r
-Thee also from obedience, that, with him \r
-Bereaved of happiness, thou mayest partake \r
-His punishment, eternal misery; \r
-Which would be all his solace and revenge, \r
-As a despite done against the Most High, \r
-Thee once to gain companion of his woe. \r
-But listen not to his temptations, warn \r
-Thy weaker; let it profit thee to have heard, \r
-By terrible example, the reward \r
-Of disobedience; firm they might have stood, \r
-Yet fell; remember, and fear to transgress. \r
- \r
- \r
- \r
-Book VII \r
- \r
- \r
-Descend from Heaven, Urania, by that name \r
-If rightly thou art called, whose voice divine \r
-Following, above the Olympian hill I soar, \r
-Above the flight of Pegasean wing! \r
-The meaning, not the name, I call: for thou \r
-Nor of the Muses nine, nor on the top \r
-Of old Olympus dwellest; but, heavenly-born, \r
-Before the hills appeared, or fountain flowed, \r
-Thou with eternal Wisdom didst converse, \r
-Wisdom thy sister, and with her didst play \r
-In presence of the Almighty Father, pleased \r
-With thy celestial song. Up led by thee \r
-Into the Heaven of Heavens I have presumed, \r
-An earthly guest, and drawn empyreal air, \r
-Thy tempering: with like safety guided down \r
-Return me to my native element: \r
-Lest from this flying steed unreined, (as once \r
-Bellerophon, though from a lower clime,) \r
-Dismounted, on the Aleian field I fall, \r
-Erroneous there to wander, and forlorn. \r
-Half yet remains unsung, but narrower bound \r
-Within the visible diurnal sphere; \r
-Standing on earth, not rapt above the pole, \r
-More safe I sing with mortal voice, unchanged \r
-To hoarse or mute, though fallen on evil days, \r
-On evil days though fallen, and evil tongues; \r
-In darkness, and with dangers compassed round, \r
-And solitude; yet not alone, while thou \r
-Visitest my slumbers nightly, or when morn \r
-Purples the east: still govern thou my song, \r
-Urania, and fit audience find, though few. \r
-But drive far off the barbarous dissonance \r
-Of Bacchus and his revellers, the race \r
-Of that wild rout that tore the Thracian bard \r
-In Rhodope, where woods and rocks had ears \r
-To rapture, till the savage clamour drowned \r
-Both harp and voice; nor could the Muse defend \r
-Her son. So fail not thou, who thee implores: \r
-For thou art heavenly, she an empty dream. \r
-Say, Goddess, what ensued when Raphael, \r
-The affable Arch-Angel, had forewarned \r
-Adam, by dire example, to beware \r
-Apostasy, by what befel in Heaven \r
-To those apostates; lest the like befall \r
-In Paradise to Adam or his race, \r
-Charged not to touch the interdicted tree, \r
-If they transgress, and slight that sole command, \r
-So easily obeyed amid the choice \r
-Of all tastes else to please their appetite, \r
-Though wandering. He, with his consorted Eve, \r
-The story heard attentive, and was filled \r
-With admiration and deep muse, to hear \r
-Of things so high and strange; things, to their thought \r
-So unimaginable, as hate in Heaven, \r
-And war so near the peace of God in bliss, \r
-With such confusion: but the evil, soon \r
-Driven back, redounded as a flood on those \r
-From whom it sprung; impossible to mix \r
-With blessedness. Whence Adam soon repealed \r
-The doubts that in his heart arose: and now \r
-Led on, yet sinless, with desire to know \r
-What nearer might concern him, how this world \r
-Of Heaven and Earth conspicuous first began; \r
-When, and whereof created; for what cause; \r
-What within Eden, or without, was done \r
-Before his memory; as one whose drouth \r
-Yet scarce allayed still eyes the current stream, \r
-Whose liquid murmur heard new thirst excites, \r
-Proceeded thus to ask his heavenly guest. \r
-Great things, and full of wonder in our ears, \r
-Far differing from this world, thou hast revealed, \r
-Divine interpreter! by favour sent \r
-Down from the empyrean, to forewarn \r
-Us timely of what might else have been our loss, \r
-Unknown, which human knowledge could not reach; \r
-For which to the infinitely Good we owe \r
-Immortal thanks, and his admonishment \r
-Receive, with solemn purpose to observe \r
-Immutably his sovran will, the end \r
-Of what we are. But since thou hast vouchsafed \r
-Gently, for our instruction, to impart \r
-Things above earthly thought, which yet concerned \r
-Our knowing, as to highest wisdom seemed, \r
-Deign to descend now lower, and relate \r
-What may no less perhaps avail us known, \r
-How first began this Heaven which we behold \r
-Distant so high, with moving fires adorned \r
-Innumerable; and this which yields or fills \r
-All space, the ambient air wide interfused \r
-Embracing round this floried Earth; what cause \r
-Moved the Creator, in his holy rest \r
-Through all eternity, so late to build \r
-In Chaos; and the work begun, how soon \r
-Absolved; if unforbid thou mayest unfold \r
-What we, not to explore the secrets ask \r
-Of his eternal empire, but the more \r
-To magnify his works, the more we know. \r
-And the great light of day yet wants to run \r
-Much of his race though steep; suspense in Heaven, \r
-Held by thy voice, thy potent voice, he hears, \r
-And longer will delay to hear thee tell \r
-His generation, and the rising birth \r
-Of Nature from the unapparent Deep: \r
-Or if the star of evening and the moon \r
-Haste to thy audience, Night with her will bring, \r
-Silence; and Sleep, listening to thee, will watch; \r
-Or we can bid his absence, till thy song \r
-End, and dismiss thee ere the morning shine. \r
-Thus Adam his illustrious guest besought: \r
-And thus the Godlike Angel answered mild. \r
-This also thy request, with caution asked, \r
-Obtain; though to recount almighty works \r
-What words or tongue of Seraph can suffice, \r
-Or heart of man suffice to comprehend? \r
-Yet what thou canst attain, which best may serve \r
-To glorify the Maker, and infer \r
-Thee also happier, shall not be withheld \r
-Thy hearing; such commission from above \r
-I have received, to answer thy desire \r
-Of knowledge within bounds; beyond, abstain \r
-To ask; nor let thine own inventions hope \r
-Things not revealed, which the invisible King, \r
-Only Omniscient, hath suppressed in night; \r
-To none communicable in Earth or Heaven: \r
-Enough is left besides to search and know. \r
-But knowledge is as food, and needs no less \r
-Her temperance over appetite, to know \r
-In measure what the mind may well contain; \r
-Oppresses else with surfeit, and soon turns \r
-Wisdom to folly, as nourishment to wind. \r
-Know then, that, after Lucifer from Heaven \r
-(So call him, brighter once amidst the host \r
-Of Angels, than that star the stars among,) \r
-Fell with his flaming legions through the deep \r
-Into his place, and the great Son returned \r
-Victorious with his Saints, the Omnipotent \r
-Eternal Father from his throne beheld \r
-Their multitude, and to his Son thus spake. \r
-At least our envious Foe hath failed, who thought \r
-All like himself rebellious, by whose aid \r
-This inaccessible high strength, the seat \r
-Of Deity supreme, us dispossessed, \r
-He trusted to have seised, and into fraud \r
-Drew many, whom their place knows here no more: \r
-Yet far the greater part have kept, I see, \r
-Their station; Heaven, yet populous, retains \r
-Number sufficient to possess her realms \r
-Though wide, and this high temple to frequent \r
-With ministeries due, and solemn rites: \r
-But, lest his heart exalt him in the harm \r
-Already done, to have dispeopled Heaven, \r
-My damage fondly deemed, I can repair \r
-That detriment, if such it be to lose \r
-Self-lost; and in a moment will create \r
-Another world, out of one man a race \r
-Of men innumerable, there to dwell, \r
-Not here; till, by degrees of merit raised, \r
-They open to themselves at length the way \r
-Up hither, under long obedience tried; \r
-And Earth be changed to Heaven, and Heaven to Earth, \r
-One kingdom, joy and union without end. \r
-Mean while inhabit lax, ye Powers of Heaven; \r
-And thou my Word, begotten Son, by thee \r
-This I perform; speak thou, and be it done! \r
-My overshadowing Spirit and Might with thee \r
-I send along; ride forth, and bid the Deep \r
-Within appointed bounds be Heaven and Earth; \r
-Boundless the Deep, because I Am who fill \r
-Infinitude, nor vacuous the space. \r
-Though I, uncircumscribed myself, retire, \r
-And put not forth my goodness, which is free \r
-To act or not, Necessity and Chance \r
-Approach not me, and what I will is Fate. \r
-So spake the Almighty, and to what he spake \r
-His Word, the Filial Godhead, gave effect. \r
-Immediate are the acts of God, more swift \r
-Than time or motion, but to human ears \r
-Cannot without process of speech be told, \r
-So told as earthly notion can receive. \r
-Great triumph and rejoicing was in Heaven, \r
-When such was heard declared the Almighty's will; \r
-Glory they sung to the Most High, good will \r
-To future men, and in their dwellings peace; \r
-Glory to Him, whose just avenging ire \r
-Had driven out the ungodly from his sight \r
-And the habitations of the just; to Him \r
-Glory and praise, whose wisdom had ordained \r
-Good out of evil to create; instead \r
-Of Spirits malign, a better race to bring \r
-Into their vacant room, and thence diffuse \r
-His good to worlds and ages infinite. \r
-So sang the Hierarchies: Mean while the Son \r
-On his great expedition now appeared, \r
-Girt with Omnipotence, with radiance crowned \r
-Of Majesty Divine; sapience and love \r
-Immense, and all his Father in him shone. \r
-About his chariot numberless were poured \r
-Cherub, and Seraph, Potentates, and Thrones, \r
-And Virtues, winged Spirits, and chariots winged \r
-From the armoury of God; where stand of old \r
-Myriads, between two brazen mountains lodged \r
-Against a solemn day, harnessed at hand, \r
-Celestial equipage; and now came forth \r
-Spontaneous, for within them Spirit lived, \r
-Attendant on their Lord: Heaven opened wide \r
-Her ever-during gates, harmonious sound \r
-On golden hinges moving, to let forth \r
-The King of Glory, in his powerful Word \r
-And Spirit, coming to create new worlds. \r
-On heavenly ground they stood; and from the shore \r
-They viewed the vast immeasurable abyss \r
-Outrageous as a sea, dark, wasteful, wild, \r
-Up from the bottom turned by furious winds \r
-And surging waves, as mountains, to assault \r
-Heaven's highth, and with the center mix the pole. \r
-Silence, ye troubled Waves, and thou Deep, peace, \r
-Said then the Omnifick Word; your discord end! \r
-Nor staid; but, on the wings of Cherubim \r
-Uplifted, in paternal glory rode \r
-Far into Chaos, and the world unborn; \r
-For Chaos heard his voice: Him all his train \r
-Followed in bright procession, to behold \r
-Creation, and the wonders of his might. \r
-Then staid the fervid wheels, and in his hand \r
-He took the golden compasses, prepared \r
-In God's eternal store, to circumscribe \r
-This universe, and all created things: \r
-One foot he centered, and the other turned \r
-Round through the vast profundity obscure; \r
-And said, Thus far extend, thus far thy bounds, \r
-This be thy just circumference, O World! \r
-Thus God the Heaven created, thus the Earth, \r
-Matter unformed and void: Darkness profound \r
-Covered the abyss: but on the watery calm \r
-His brooding wings the Spirit of God outspread, \r
-And vital virtue infused, and vital warmth \r
-Throughout the fluid mass; but downward purged \r
-The black tartareous cold infernal dregs, \r
-Adverse to life: then founded, then conglobed \r
-Like things to like; the rest to several place \r
-Disparted, and between spun out the air; \r
-And Earth self-balanced on her center hung. \r
-Let there be light, said God; and forthwith Light \r
-Ethereal, first of things, quintessence pure, \r
-Sprung from the deep; and from her native east \r
-To journey through the aery gloom began, \r
-Sphered in a radiant cloud, for yet the sun \r
-Was not; she in a cloudy tabernacle \r
-Sojourned the while. God saw the light was good; \r
-And light from darkness by the hemisphere \r
-Divided: light the Day, and darkness Night, \r
-He named. Thus was the first day even and morn: \r
-Nor past uncelebrated, nor unsung \r
-By the celestial quires, when orient light \r
-Exhaling first from darkness they beheld; \r
-Birth-day of Heaven and Earth; with joy and shout \r
-The hollow universal orb they filled, \r
-And touched their golden harps, and hymning praised \r
-God and his works; Creator him they sung, \r
-Both when first evening was, and when first morn. \r
-Again, God said, Let there be firmament \r
-Amid the waters, and let it divide \r
-The waters from the waters; and God made \r
-The firmament, expanse of liquid, pure, \r
-Transparent, elemental air, diffused \r
-In circuit to the uttermost convex \r
-Of this great round; partition firm and sure, \r
-The waters underneath from those above \r
-Dividing: for as earth, so he the world \r
-Built on circumfluous waters calm, in wide \r
-Crystalline ocean, and the loud misrule \r
-Of Chaos far removed; lest fierce extremes \r
-Contiguous might distemper the whole frame: \r
-And Heaven he named the Firmament: So even \r
-And morning chorus sung the second day. \r
-The Earth was formed, but in the womb as yet \r
-Of waters, embryon immature involved, \r
-Appeared not: over all the face of Earth \r
-Main ocean flowed, not idle; but, with warm \r
-Prolifick humour softening all her globe, \r
-Fermented the great mother to conceive, \r
-Satiate with genial moisture; when God said, \r
-Be gathered now ye waters under Heaven \r
-Into one place, and let dry land appear. \r
-Immediately the mountains huge appear \r
-Emergent, and their broad bare backs upheave \r
-Into the clouds; their tops ascend the sky: \r
-So high as heaved the tumid hills, so low \r
-Down sunk a hollow bottom broad and deep, \r
-Capacious bed of waters: Thither they \r
-Hasted with glad precipitance, uprolled, \r
-As drops on dust conglobing from the dry: \r
-Part rise in crystal wall, or ridge direct, \r
-For haste; such flight the great command impressed \r
-On the swift floods: As armies at the call \r
-Of trumpet (for of armies thou hast heard) \r
-Troop to their standard; so the watery throng, \r
-Wave rolling after wave, where way they found, \r
-If steep, with torrent rapture, if through plain, \r
-Soft-ebbing; nor withstood them rock or hill; \r
-But they, or under ground, or circuit wide \r
-With serpent errour wandering, found their way, \r
-And on the washy oose deep channels wore; \r
-Easy, ere God had bid the ground be dry, \r
-All but within those banks, where rivers now \r
-Stream, and perpetual draw their humid train. \r
-The dry land, Earth; and the great receptacle \r
-Of congregated waters, he called Seas: \r
-And saw that it was good; and said, Let the Earth \r
-Put forth the verdant grass, herb yielding seed, \r
-And fruit-tree yielding fruit after her kind, \r
-Whose seed is in herself upon the Earth. \r
-He scarce had said, when the bare Earth, till then \r
-Desart and bare, unsightly, unadorned, \r
-Brought forth the tender grass, whose verdure clad \r
-Her universal face with pleasant green; \r
-Then herbs of every leaf, that sudden flowered \r
-Opening their various colours, and made gay \r
-Her bosom, smelling sweet: and, these scarce blown, \r
-Forth flourished thick the clustering vine, forth crept \r
-The swelling gourd, up stood the corny reed \r
-Embattled in her field, and the humble shrub, \r
-And bush with frizzled hair implicit: Last \r
-Rose, as in dance, the stately trees, and spread \r
-Their branches hung with copious fruit, or gemmed \r
-Their blossoms: With high woods the hills were crowned; \r
-With tufts the valleys, and each fountain side; \r
-With borders long the rivers: that Earth now \r
-Seemed like to Heaven, a seat where Gods might dwell, \r
-Or wander with delight, and love to haunt \r
-Her sacred shades: though God had yet not rained \r
-Upon the Earth, and man to till the ground \r
-None was; but from the Earth a dewy mist \r
-Went up, and watered all the ground, and each \r
-Plant of the field; which, ere it was in the Earth, \r
-God made, and every herb, before it grew \r
-On the green stem: God saw that it was good: \r
-So even and morn recorded the third day. \r
-Again the Almighty spake, Let there be lights \r
-High in the expanse of Heaven, to divide \r
-The day from night; and let them be for signs, \r
-For seasons, and for days, and circling years; \r
-And let them be for lights, as I ordain \r
-Their office in the firmament of Heaven, \r
-To give light on the Earth; and it was so. \r
-And God made two great lights, great for their use \r
-To Man, the greater to have rule by day, \r
-The less by night, altern; and made the stars, \r
-And set them in the firmament of Heaven \r
-To illuminate the Earth, and rule the day \r
-In their vicissitude, and rule the night, \r
-And light from darkness to divide. God saw, \r
-Surveying his great work, that it was good: \r
-For of celestial bodies first the sun \r
-A mighty sphere he framed, unlightsome first, \r
-Though of ethereal mould: then formed the moon \r
-Globose, and every magnitude of stars, \r
-And sowed with stars the Heaven, thick as a field: \r
-Of light by far the greater part he took, \r
-Transplanted from her cloudy shrine, and placed \r
-In the sun's orb, made porous to receive \r
-And drink the liquid light; firm to retain \r
-Her gathered beams, great palace now of light. \r
-Hither, as to their fountain, other stars \r
-Repairing, in their golden urns draw light, \r
-And hence the morning-planet gilds her horns; \r
-By tincture or reflection they augment \r
-Their small peculiar, though from human sight \r
-So far remote, with diminution seen, \r
-First in his east the glorious lamp was seen, \r
-Regent of day, and all the horizon round \r
-Invested with bright rays, jocund to run \r
-His longitude through Heaven's high road; the gray \r
-Dawn, and the Pleiades, before him danced, \r
-Shedding sweet influence: Less bright the moon, \r
-But opposite in levelled west was set, \r
-His mirrour, with full face borrowing her light \r
-From him; for other light she needed none \r
-In that aspect, and still that distance keeps \r
-Till night; then in the east her turn she shines, \r
-Revolved on Heaven's great axle, and her reign \r
-With thousand lesser lights dividual holds, \r
-With thousand thousand stars, that then appeared \r
-Spangling the hemisphere: Then first adorned \r
-With their bright luminaries that set and rose, \r
-Glad evening and glad morn crowned the fourth day. \r
-And God said, Let the waters generate \r
-Reptile with spawn abundant, living soul: \r
-And let fowl fly above the Earth, with wings \r
-Displayed on the open firmament of Heaven. \r
-And God created the great whales, and each \r
-Soul living, each that crept, which plenteously \r
-The waters generated by their kinds; \r
-And every bird of wing after his kind; \r
-And saw that it was good, and blessed them, saying. \r
-Be fruitful, multiply, and in the seas, \r
-And lakes, and running streams, the waters fill; \r
-And let the fowl be multiplied, on the Earth. \r
-Forthwith the sounds and seas, each creek and bay, \r
-With fry innumerable swarm, and shoals \r
-Of fish that with their fins, and shining scales, \r
-Glide under the green wave, in sculls that oft \r
-Bank the mid sea: part single, or with mate, \r
-Graze the sea-weed their pasture, and through groves \r
-Of coral stray; or, sporting with quick glance, \r
-Show to the sun their waved coats dropt with gold; \r
-Or, in their pearly shells at ease, attend \r
-Moist nutriment; or under rocks their food \r
-In jointed armour watch: on smooth the seal \r
-And bended dolphins play: part huge of bulk \r
-Wallowing unwieldy, enormous in their gait, \r
-Tempest the ocean: there leviathan, \r
-Hugest of living creatures, on the deep \r
-Stretched like a promontory sleeps or swims, \r
-And seems a moving land; and at his gills \r
-Draws in, and at his trunk spouts out, a sea. \r
-Mean while the tepid caves, and fens, and shores, \r
-Their brood as numerous hatch, from the egg that soon \r
-Bursting with kindly rupture forth disclosed \r
-Their callow young; but feathered soon and fledge \r
-They summed their pens; and, soaring the air sublime, \r
-With clang despised the ground, under a cloud \r
-In prospect; there the eagle and the stork \r
-On cliffs and cedar tops their eyries build: \r
-Part loosely wing the region, part more wise \r
-In common, ranged in figure, wedge their way, \r
-Intelligent of seasons, and set forth \r
-Their aery caravan, high over seas \r
-Flying, and over lands, with mutual wing \r
-Easing their flight; so steers the prudent crane \r
-Her annual voyage, borne on winds; the air \r
-Floats as they pass, fanned with unnumbered plumes: \r
-From branch to branch the smaller birds with song \r
-Solaced the woods, and spread their painted wings \r
-Till even; nor then the solemn nightingale \r
-Ceased warbling, but all night tun'd her soft lays: \r
-Others, on silver lakes and rivers, bathed \r
-Their downy breast; the swan with arched neck, \r
-Between her white wings mantling proudly, rows \r
-Her state with oary feet; yet oft they quit \r
-The dank, and, rising on stiff pennons, tower \r
-The mid aereal sky: Others on ground \r
-Walked firm; the crested cock whose clarion sounds \r
-The silent hours, and the other whose gay train \r
-Adorns him, coloured with the florid hue \r
-Of rainbows and starry eyes. The waters thus \r
-With fish replenished, and the air with fowl, \r
-Evening and morn solemnized the fifth day. \r
-The sixth, and of creation last, arose \r
-With evening harps and matin; when God said, \r
-Let the Earth bring forth soul living in her kind, \r
-Cattle, and creeping things, and beast of the Earth, \r
-Each in their kind. The Earth obeyed, and straight \r
-Opening her fertile womb teemed at a birth \r
-Innumerous living creatures, perfect forms, \r
-Limbed and full grown: Out of the ground up rose, \r
-As from his lair, the wild beast where he wons \r
-In forest wild, in thicket, brake, or den; \r
-Among the trees in pairs they rose, they walked: \r
-The cattle in the fields and meadows green: \r
-Those rare and solitary, these in flocks \r
-Pasturing at once, and in broad herds upsprung. \r
-The grassy clods now calved; now half appeared \r
-The tawny lion, pawing to get free \r
-His hinder parts, then springs as broke from bonds, \r
-And rampant shakes his brinded mane; the ounce, \r
-The libbard, and the tiger, as the mole \r
-Rising, the crumbled earth above them threw \r
-In hillocks: The swift stag from under ground \r
-Bore up his branching head: Scarce from his mould \r
-Behemoth biggest born of earth upheaved \r
-His vastness: Fleeced the flocks and bleating rose, \r
-As plants: Ambiguous between sea and land \r
-The river-horse, and scaly crocodile. \r
-At once came forth whatever creeps the ground, \r
-Insect or worm: those waved their limber fans \r
-For wings, and smallest lineaments exact \r
-In all the liveries decked of summer's pride \r
-With spots of gold and purple, azure and green: \r
-These, as a line, their long dimension drew, \r
-Streaking the ground with sinuous trace; not all \r
-Minims of nature; some of serpent-kind, \r
-Wonderous in length and corpulence, involved \r
-Their snaky folds, and added wings. First crept \r
-The parsimonious emmet, provident \r
-Of future; in small room large heart enclosed; \r
-Pattern of just equality perhaps \r
-Hereafter, joined in her popular tribes \r
-Of commonalty: Swarming next appeared \r
-The female bee, that feeds her husband drone \r
-Deliciously, and builds her waxen cells \r
-With honey stored: The rest are numberless, \r
-And thou their natures knowest, and gavest them names, \r
-Needless to thee repeated; nor unknown \r
-The serpent, subtlest beast of all the field, \r
-Of huge extent sometimes, with brazen eyes \r
-And hairy mane terrifick, though to thee \r
-Not noxious, but obedient at thy call. \r
-Now Heaven in all her glory shone, and rolled \r
-Her motions, as the great first Mover's hand \r
-First wheeled their course: Earth in her rich attire \r
-Consummate lovely smiled; air, water, earth, \r
-By fowl, fish, beast, was flown, was swum, was walked, \r
-Frequent; and of the sixth day yet remained: \r
-There wanted yet the master-work, the end \r
-Of all yet done; a creature, who, not prone \r
-And brute as other creatures, but endued \r
-With sanctity of reason, might erect \r
-His stature, and upright with front serene \r
-Govern the rest, self-knowing; and from thence \r
-Magnanimous to correspond with Heaven, \r
-But grateful to acknowledge whence his good \r
-Descends, thither with heart, and voice, and eyes \r
-Directed in devotion, to adore \r
-And worship God Supreme, who made him chief \r
-Of all his works: therefore the Omnipotent \r
-Eternal Father (for where is not he \r
-Present?) thus to his Son audibly spake. \r
-Let us make now Man in our image, Man \r
-In our similitude, and let them rule \r
-Over the fish and fowl of sea and air, \r
-Beast of the field, and over all the Earth, \r
-And every creeping thing that creeps the ground. \r
-This said, he formed thee, Adam, thee, O Man, \r
-Dust of the ground, and in thy nostrils breathed \r
-The breath of life; in his own image he \r
-Created thee, in the image of God \r
-Express; and thou becamest a living soul. \r
-Male he created thee; but thy consort \r
-Female, for race; then blessed mankind, and said, \r
-Be fruitful, multiply, and fill the Earth; \r
-Subdue it, and throughout dominion hold \r
-Over fish of the sea, and fowl of the air, \r
-And every living thing that moves on the Earth. \r
-Wherever thus created, for no place \r
-Is yet distinct by name, thence, as thou knowest, \r
-He brought thee into this delicious grove, \r
-This garden, planted with the trees of God, \r
-Delectable both to behold and taste; \r
-And freely all their pleasant fruit for food \r
-Gave thee; all sorts are here that all the Earth yields, \r
-Variety without end; but of the tree, \r
-Which, tasted, works knowledge of good and evil, \r
-Thou mayest not; in the day thou eatest, thou diest; \r
-Death is the penalty imposed; beware, \r
-And govern well thy appetite; lest Sin \r
-Surprise thee, and her black attendant Death. \r
-Here finished he, and all that he had made \r
-Viewed, and behold all was entirely good; \r
-So even and morn accomplished the sixth day: \r
-Yet not till the Creator from his work \r
-Desisting, though unwearied, up returned, \r
-Up to the Heaven of Heavens, his high abode; \r
-Thence to behold this new created world, \r
-The addition of his empire, how it showed \r
-In prospect from his throne, how good, how fair, \r
-Answering his great idea. Up he rode \r
-Followed with acclamation, and the sound \r
-Symphonious of ten thousand harps, that tuned \r
-Angelick harmonies: The earth, the air \r
-Resounded, (thou rememberest, for thou heardst,) \r
-The heavens and all the constellations rung, \r
-The planets in their station listening stood, \r
-While the bright pomp ascended jubilant. \r
-Open, ye everlasting gates! they sung, \r
-Open, ye Heavens! your living doors;let in \r
-The great Creator from his work returned \r
-Magnificent, his six days work, a World; \r
-Open, and henceforth oft; for God will deign \r
-To visit oft the dwellings of just men, \r
-Delighted; and with frequent intercourse \r
-Thither will send his winged messengers \r
-On errands of supernal grace. So sung \r
-The glorious train ascending: He through Heaven, \r
-That opened wide her blazing portals, led \r
-To God's eternal house direct the way; \r
-A broad and ample road, whose dust is gold \r
-And pavement stars, as stars to thee appear, \r
-Seen in the galaxy, that milky way, \r
-Which nightly, as a circling zone, thou seest \r
-Powdered with stars. And now on Earth the seventh \r
-Evening arose in Eden, for the sun \r
-Was set, and twilight from the east came on, \r
-Forerunning night; when at the holy mount \r
-Of Heaven's high-seated top, the imperial throne \r
-Of Godhead, fixed for ever firm and sure, \r
-The Filial Power arrived, and sat him down \r
-With his great Father; for he also went \r
-Invisible, yet staid, (such privilege \r
-Hath Omnipresence) and the work ordained, \r
-Author and End of all things; and, from work \r
-Now resting, blessed and hallowed the seventh day, \r
-As resting on that day from all his work, \r
-But not in silence holy kept: the harp \r
-Had work and rested not; the solemn pipe, \r
-And dulcimer, all organs of sweet stop, \r
-All sounds on fret by string or golden wire, \r
-Tempered soft tunings, intermixed with voice \r
-Choral or unison: of incense clouds, \r
-Fuming from golden censers, hid the mount. \r
-Creation and the six days acts they sung: \r
-Great are thy works, Jehovah! infinite \r
-Thy power! what thought can measure thee, or tongue \r
-Relate thee! Greater now in thy return \r
-Than from the giant Angels: Thee that day \r
-Thy thunders magnified; but to create \r
-Is greater than created to destroy. \r
-Who can impair thee, Mighty King, or bound \r
-Thy empire! Easily the proud attempt \r
-Of Spirits apostate, and their counsels vain, \r
-Thou hast repelled; while impiously they thought \r
-Thee to diminish, and from thee withdraw \r
-The number of thy worshippers. Who seeks \r
-To lessen thee, against his purpose serves \r
-To manifest the more thy might: his evil \r
-Thou usest, and from thence createst more good. \r
-Witness this new-made world, another Heaven \r
-From Heaven-gate not far, founded in view \r
-On the clear hyaline, the glassy sea; \r
-Of amplitude almost immense, with stars \r
-Numerous, and every star perhaps a world \r
-Of destined habitation; but thou knowest \r
-Their seasons: among these the seat of Men, \r
-Earth, with her nether ocean circumfused, \r
-Their pleasant dwelling-place. Thrice happy Men, \r
-And sons of Men, whom God hath thus advanced! \r
-Created in his image, there to dwell \r
-And worship him; and in reward to rule \r
-Over his works, on earth, in sea, or air, \r
-And multiply a race of worshippers \r
-Holy and just: Thrice happy, if they know \r
-Their happiness, and persevere upright! \r
-So sung they, and the empyrean rung \r
-With halleluiahs: Thus was sabbath kept. \r
-And thy request think now fulfilled, that asked \r
-How first this world and face of things began, \r
-And what before thy memory was done \r
-From the beginning; that posterity, \r
-Informed by thee, might know: If else thou seekest \r
-Aught, not surpassing human measure, say. \r
- \r
- \r
- \r
-Book VIII \r
- \r
- \r
-The Angel ended, and in Adam's ear \r
-So charming left his voice, that he a while \r
-Thought him still speaking, still stood fixed to hear; \r
-Then, as new waked, thus gratefully replied. \r
-What thanks sufficient, or what recompence \r
-Equal, have I to render thee, divine \r
-Historian, who thus largely hast allayed \r
-The thirst I had of knowledge, and vouchsafed \r
-This friendly condescension to relate \r
-Things, else by me unsearchable; now heard \r
-With wonder, but delight, and, as is due, \r
-With glory attributed to the high \r
-Creator! Something yet of doubt remains, \r
-Which only thy solution can resolve. \r
-When I behold this goodly frame, this world, \r
-Of Heaven and Earth consisting; and compute \r
-Their magnitudes; this Earth, a spot, a grain, \r
-An atom, with the firmament compared \r
-And all her numbered stars, that seem to roll \r
-Spaces incomprehensible, (for such \r
-Their distance argues, and their swift return \r
-Diurnal,) merely to officiate light \r
-Round this opacous Earth, this punctual spot, \r
-One day and night; in all her vast survey \r
-Useless besides; reasoning I oft admire, \r
-How Nature wise and frugal could commit \r
-Such disproportions, with superfluous hand \r
-So many nobler bodies to create, \r
-Greater so manifold, to this one use, \r
-For aught appears, and on their orbs impose \r
-Such restless revolution day by day \r
-Repeated; while the sedentary Earth, \r
-That better might with far less compass move, \r
-Served by more noble than herself, attains \r
-Her end without least motion, and receives, \r
-As tribute, such a sumless journey brought \r
-Of incorporeal speed, her warmth and light; \r
-Speed, to describe whose swiftness number fails. \r
-So spake our sire, and by his countenance seemed \r
-Entering on studious thoughts abstruse; which Eve \r
-Perceiving, where she sat retired in sight, \r
-With lowliness majestick from her seat, \r
-And grace that won who saw to wish her stay, \r
-Rose, and went forth among her fruits and flowers, \r
-To visit how they prospered, bud and bloom, \r
-Her nursery; they at her coming sprung, \r
-And, touched by her fair tendance, gladlier grew. \r
-Yet went she not, as not with such discourse \r
-Delighted, or not capable her ear \r
-Of what was high: such pleasure she reserved, \r
-Adam relating, she sole auditress; \r
-Her husband the relater she preferred \r
-Before the Angel, and of him to ask \r
-Chose rather; he, she knew, would intermix \r
-Grateful digressions, and solve high dispute \r
-With conjugal caresses: from his lip \r
-Not words alone pleased her. O! when meet now \r
-Such pairs, in love and mutual honour joined? \r
-With Goddess-like demeanour forth she went, \r
-Not unattended; for on her, as Queen, \r
-A pomp of winning Graces waited still, \r
-And from about her shot darts of desire \r
-Into all eyes, to wish her still in sight. \r
-And Raphael now, to Adam's doubt proposed, \r
-Benevolent and facile thus replied. \r
-To ask or search, I blame thee not; for Heaven \r
-Is as the book of God before thee set, \r
-Wherein to read his wonderous works, and learn \r
-His seasons, hours, or days, or months, or years: \r
-This to attain, whether Heaven move or Earth, \r
-Imports not, if thou reckon right; the rest \r
-From Man or Angel the great Architect \r
-Did wisely to conceal, and not divulge \r
-His secrets to be scanned by them who ought \r
-Rather admire; or, if they list to try \r
-Conjecture, he his fabrick of the Heavens \r
-Hath left to their disputes, perhaps to move \r
-His laughter at their quaint opinions wide \r
-Hereafter; when they come to model Heaven \r
-And calculate the stars, how they will wield \r
-The mighty frame; how build, unbuild, contrive \r
-To save appearances; how gird the sphere \r
-With centrick and eccentrick scribbled o'er, \r
-Cycle and epicycle, orb in orb: \r
-Already by thy reasoning this I guess, \r
-Who art to lead thy offspring, and supposest \r
-That bodies bright and greater should not serve \r
-The less not bright, nor Heaven such journeys run, \r
-Earth sitting still, when she alone receives \r
-The benefit: Consider first, that great \r
-Or bright infers not excellence: the Earth \r
-Though, in comparison of Heaven, so small, \r
-Nor glistering, may of solid good contain \r
-More plenty than the sun that barren shines; \r
-Whose virtue on itself works no effect, \r
-But in the fruitful Earth; there first received, \r
-His beams, unactive else, their vigour find. \r
-Yet not to Earth are those bright luminaries \r
-Officious; but to thee, Earth's habitant. \r
-And for the Heaven's wide circuit, let it speak \r
-The Maker's high magnificence, who built \r
-So spacious, and his line stretched out so far; \r
-That Man may know he dwells not in his own; \r
-An edifice too large for him to fill, \r
-Lodged in a small partition; and the rest \r
-Ordained for uses to his Lord best known. \r
-The swiftness of those circles attribute, \r
-Though numberless, to his Omnipotence, \r
-That to corporeal substances could add \r
-Speed almost spiritual: Me thou thinkest not slow, \r
-Who since the morning-hour set out from Heaven \r
-Where God resides, and ere mid-day arrived \r
-In Eden; distance inexpressible \r
-By numbers that have name. But this I urge, \r
-Admitting motion in the Heavens, to show \r
-Invalid that which thee to doubt it moved; \r
-Not that I so affirm, though so it seem \r
-To thee who hast thy dwelling here on Earth. \r
-God, to remove his ways from human sense, \r
-Placed Heaven from Earth so far, that earthly sight, \r
-If it presume, might err in things too high, \r
-And no advantage gain. What if the sun \r
-Be center to the world; and other stars, \r
-By his attractive virtue and their own \r
-Incited, dance about him various rounds? \r
-Their wandering course now high, now low, then hid, \r
-Progressive, retrograde, or standing still, \r
-In six thou seest; and what if seventh to these \r
-The planet earth, so stedfast though she seem, \r
-Insensibly three different motions move? \r
-Which else to several spheres thou must ascribe, \r
-Moved contrary with thwart obliquities; \r
-Or save the sun his labour, and that swift \r
-Nocturnal and diurnal rhomb supposed, \r
-Invisible else above all stars, the wheel \r
-Of day and night; which needs not thy belief, \r
-If earth, industrious of herself, fetch day \r
-Travelling east, and with her part averse \r
-From the sun's beam meet night, her other part \r
-Still luminous by his ray. What if that light, \r
-Sent from her through the wide transpicuous air, \r
-To the terrestrial moon be as a star, \r
-Enlightening her by day, as she by night \r
-This earth? reciprocal, if land be there, \r
-Fields and inhabitants: Her spots thou seest \r
-As clouds, and clouds may rain, and rain produce \r
-Fruits in her softened soil for some to eat \r
-Allotted there; and other suns perhaps, \r
-With their attendant moons, thou wilt descry, \r
-Communicating male and female light; \r
-Which two great sexes animate the world, \r
-Stored in each orb perhaps with some that live. \r
-For such vast room in Nature unpossessed \r
-By living soul, desart and desolate, \r
-Only to shine, yet scarce to contribute \r
-Each orb a glimpse of light, conveyed so far \r
-Down to this habitable, which returns \r
-Light back to them, is obvious to dispute. \r
-But whether thus these things, or whether not; \r
-But whether the sun, predominant in Heaven, \r
-Rise on the earth; or earth rise on the sun; \r
-He from the east his flaming road begin; \r
-Or she from west her silent course advance, \r
-With inoffensive pace that spinning sleeps \r
-On her soft axle, while she paces even, \r
-And bears thee soft with the smooth hair along; \r
-Sollicit not thy thoughts with matters hid; \r
-Leave them to God above; him serve, and fear! \r
-Of other creatures, as him pleases best, \r
-Wherever placed, let him dispose; joy thou \r
-In what he gives to thee, this Paradise \r
-And thy fair Eve; Heaven is for thee too high \r
-To know what passes there; be lowly wise: \r
-Think only what concerns thee, and thy being; \r
-Dream not of other worlds, what creatures there \r
-Live, in what state, condition, or degree; \r
-Contented that thus far hath been revealed \r
-Not of Earth only, but of highest Heaven. \r
-To whom thus Adam, cleared of doubt, replied. \r
-How fully hast thou satisfied me, pure \r
-Intelligence of Heaven, Angel serene! \r
-And, freed from intricacies, taught to live \r
-The easiest way; nor with perplexing thoughts \r
-To interrupt the sweet of life, from which \r
-God hath bid dwell far off all anxious cares, \r
-And not molest us; unless we ourselves \r
-Seek them with wandering thoughts, and notions vain. \r
-But apt the mind or fancy is to rove \r
-Unchecked, and of her roving is no end; \r
-Till warned, or by experience taught, she learn, \r
-That, not to know at large of things remote \r
-From use, obscure and subtle; but, to know \r
-That which before us lies in daily life, \r
-Is the prime wisdom: What is more, is fume, \r
-Or emptiness, or fond impertinence: \r
-And renders us, in things that most concern, \r
-Unpractised, unprepared, and still to seek. \r
-Therefore from this high pitch let us descend \r
-A lower flight, and speak of things at hand \r
-Useful; whence, haply, mention may arise \r
-Of something not unseasonable to ask, \r
-By sufferance, and thy wonted favour, deigned. \r
-Thee I have heard relating what was done \r
-Ere my remembrance: now, hear me relate \r
-My story, which perhaps thou hast not heard; \r
-And day is not yet spent; till then thou seest \r
-How subtly to detain thee I devise; \r
-Inviting thee to hear while I relate; \r
-Fond! were it not in hope of thy reply: \r
-For, while I sit with thee, I seem in Heaven; \r
-And sweeter thy discourse is to my ear \r
-Than fruits of palm-tree pleasantest to thirst \r
-And hunger both, from labour, at the hour \r
-Of sweet repast; they satiate, and soon fill, \r
-Though pleasant; but thy words, with grace divine \r
-Imbued, bring to their sweetness no satiety. \r
-To whom thus Raphael answered heavenly meek. \r
-Nor are thy lips ungraceful, Sire of men, \r
-Nor tongue ineloquent; for God on thee \r
-Abundantly his gifts hath also poured \r
-Inward and outward both, his image fair: \r
-Speaking, or mute, all comeliness and grace \r
-Attends thee; and each word, each motion, forms; \r
-Nor less think we in Heaven of thee on Earth \r
-Than of our fellow-servant, and inquire \r
-Gladly into the ways of God with Man: \r
-For God, we see, hath honoured thee, and set \r
-On Man his equal love: Say therefore on; \r
-For I that day was absent, as befel, \r
-Bound on a voyage uncouth and obscure, \r
-Far on excursion toward the gates of Hell; \r
-Squared in full legion (such command we had) \r
-To see that none thence issued forth a spy, \r
-Or enemy, while God was in his work; \r
-Lest he, incensed at such eruption bold, \r
-Destruction with creation might have mixed. \r
-Not that they durst without his leave attempt; \r
-But us he sends upon his high behests \r
-For state, as Sovran King; and to inure \r
-Our prompt obedience. Fast we found, fast shut, \r
-The dismal gates, and barricadoed strong; \r
-But long ere our approaching heard within \r
-Noise, other than the sound of dance or song, \r
-Torment, and loud lament, and furious rage. \r
-Glad we returned up to the coasts of light \r
-Ere sabbath-evening: so we had in charge. \r
-But thy relation now; for I attend, \r
-Pleased with thy words no less than thou with mine. \r
-So spake the Godlike Power, and thus our Sire. \r
-For Man to tell how human life began \r
-Is hard; for who himself beginning knew \r
-Desire with thee still longer to converse \r
-Induced me. As new waked from soundest sleep, \r
-Soft on the flowery herb I found me laid, \r
-In balmy sweat; which with his beams the sun \r
-Soon dried, and on the reeking moisture fed. \r
-Straight toward Heaven my wondering eyes I turned, \r
-And gazed a while the ample sky; till, raised \r
-By quick instinctive motion, up I sprung, \r
-As thitherward endeavouring, and upright \r
-Stood on my feet: about me round I saw \r
-Hill, dale, and shady woods, and sunny plains, \r
-And liquid lapse of murmuring streams; by these, \r
-Creatures that lived and moved, and walked, or flew; \r
-Birds on the branches warbling; all things smiled; \r
-With fragrance and with joy my heart o'erflowed. \r
-Myself I then perused, and limb by limb \r
-Surveyed, and sometimes went, and sometimes ran \r
-With supple joints, as lively vigour led: \r
-But who I was, or where, or from what cause, \r
-Knew not; to speak I tried, and forthwith spake; \r
-My tongue obeyed, and readily could name \r
-Whate'er I saw. Thou Sun, said I, fair light, \r
-And thou enlightened Earth, so fresh and gay, \r
-Ye Hills, and Dales, ye Rivers, Woods, and Plains, \r
-And ye that live and move, fair Creatures, tell, \r
-Tell, if ye saw, how I came thus, how here?-- \r
-Not of myself;--by some great Maker then, \r
-In goodness and in power pre-eminent: \r
-Tell me, how may I know him, how adore, \r
-From whom I have that thus I move and live, \r
-And feel that I am happier than I know.-- \r
-While thus I called, and strayed I knew not whither, \r
-From where I first drew air, and first beheld \r
-This happy light; when, answer none returned, \r
-On a green shady bank, profuse of flowers, \r
-Pensive I sat me down: There gentle sleep \r
-First found me, and with soft oppression seised \r
-My droused sense, untroubled, though I thought \r
-I then was passing to my former state \r
-Insensible, and forthwith to dissolve: \r
-When suddenly stood at my head a dream, \r
-Whose inward apparition gently moved \r
-My fancy to believe I yet had being, \r
-And lived: One came, methought, of shape divine, \r
-And said, 'Thy mansion wants thee, Adam; rise, \r
-'First Man, of men innumerable ordained \r
-'First Father! called by thee, I come thy guide \r
-'To the garden of bliss, thy seat prepared.' \r
-So saying, by the hand he took me raised, \r
-And over fields and waters, as in air \r
-Smooth-sliding without step, last led me up \r
-A woody mountain; whose high top was plain, \r
-A circuit wide, enclosed, with goodliest trees \r
-Planted, with walks, and bowers; that what I saw \r
-Of Earth before scarce pleasant seemed. Each tree, \r
-Loaden with fairest fruit that hung to the eye \r
-Tempting, stirred in me sudden appetite \r
-To pluck and eat; whereat I waked, and found \r
-Before mine eyes all real, as the dream \r
-Had lively shadowed: Here had new begun \r
-My wandering, had not he, who was my guide \r
-Up hither, from among the trees appeared, \r
-Presence Divine. Rejoicing, but with awe, \r
-In adoration at his feet I fell \r
-Submiss: He reared me, and 'Whom thou soughtest I am,' \r
-Said mildly, 'Author of all this thou seest \r
-'Above, or round about thee, or beneath. \r
-'This Paradise I give thee, count it thine \r
-'To till and keep, and of the fruit to eat: \r
-'Of every tree that in the garden grows \r
-'Eat freely with glad heart; fear here no dearth: \r
-'But of the tree whose operation brings \r
-'Knowledge of good and ill, which I have set \r
-'The pledge of thy obedience and thy faith, \r
-'Amid the garden by the tree of life, \r
-'Remember what I warn thee, shun to taste, \r
-'And shun the bitter consequence: for know, \r
-'The day thou eatest thereof, my sole command \r
-'Transgressed, inevitably thou shalt die, \r
-'From that day mortal; and this happy state \r
-'Shalt lose, expelled from hence into a world \r
-'Of woe and sorrow.' Sternly he pronounced \r
-The rigid interdiction, which resounds \r
-Yet dreadful in mine ear, though in my choice \r
-Not to incur; but soon his clear aspect \r
-Returned, and gracious purpose thus renewed. \r
-'Not only these fair bounds, but all the Earth \r
-'To thee and to thy race I give; as lords \r
-'Possess it, and all things that therein live, \r
-'Or live in sea, or air; beast, fish, and fowl. \r
-'In sign whereof, each bird and beast behold \r
-'After their kinds; I bring them to receive \r
-'From thee their names, and pay thee fealty \r
-'With low subjection; understand the same \r
-'Of fish within their watery residence, \r
-'Not hither summoned, since they cannot change \r
-'Their element, to draw the thinner air.' \r
-As thus he spake, each bird and beast behold \r
-Approaching two and two; these cowering low \r
-With blandishment; each bird stooped on his wing. \r
-I named them, as they passed, and understood \r
-Their nature, with such knowledge God endued \r
-My sudden apprehension: But in these \r
-I found not what methought I wanted still; \r
-And to the heavenly Vision thus presumed. \r
-O, by what name, for thou above all these, \r
-Above mankind, or aught than mankind higher, \r
-Surpassest far my naming; how may I \r
-Adore thee, Author of this universe, \r
-And all this good to man? for whose well being \r
-So amply, and with hands so liberal, \r
-Thou hast provided all things: But with me \r
-I see not who partakes. In solitude \r
-What happiness, who can enjoy alone, \r
-Or, all enjoying, what contentment find? \r
-Thus I presumptuous; and the Vision bright, \r
-As with a smile more brightened, thus replied. \r
-What callest thou solitude? Is not the Earth \r
-With various living creatures, and the air \r
-Replenished, and all these at thy command \r
-To come and play before thee? Knowest thou not \r
-Their language and their ways? They also know, \r
-And reason not contemptibly: With these \r
-Find pastime, and bear rule; thy realm is large. \r
-So spake the Universal Lord, and seemed \r
-So ordering: I, with leave of speech implored, \r
-And humble deprecation, thus replied. \r
-Let not my words offend thee, Heavenly Power; \r
-My Maker, be propitious while I speak. \r
-Hast thou not made me here thy substitute, \r
-And these inferiour far beneath me set? \r
-Among unequals what society \r
-Can sort, what harmony, or true delight? \r
-Which must be mutual, in proportion due \r
-Given and received; but, in disparity \r
-The one intense, the other still remiss, \r
-Cannot well suit with either, but soon prove \r
-Tedious alike: Of fellowship I speak \r
-Such as I seek, fit to participate \r
-All rational delight: wherein the brute \r
-Cannot be human consort: They rejoice \r
-Each with their kind, lion with lioness; \r
-So fitly them in pairs thou hast combined: \r
-Much less can bird with beast, or fish with fowl \r
-So well converse, nor with the ox the ape; \r
-Worse then can man with beast, and least of all. \r
-Whereto the Almighty answered, not displeased. \r
-A nice and subtle happiness, I see, \r
-Thou to thyself proposest, in the choice \r
-Of thy associates, Adam! and wilt taste \r
-No pleasure, though in pleasure, solitary. \r
-What thinkest thou then of me, and this my state? \r
-Seem I to thee sufficiently possessed \r
-Of happiness, or not? who am alone \r
-From all eternity; for none I know \r
-Second to me or like, equal much less. \r
-How have I then with whom to hold converse, \r
-Save with the creatures which I made, and those \r
-To me inferiour, infinite descents \r
-Beneath what other creatures are to thee? \r
-He ceased; I lowly answered. To attain \r
-The highth and depth of thy eternal ways \r
-All human thoughts come short, Supreme of things! \r
-Thou in thyself art perfect, and in thee \r
-Is no deficience found: Not so is Man, \r
-But in degree; the cause of his desire \r
-By conversation with his like to help \r
-Or solace his defects. No need that thou \r
-Shouldst propagate, already Infinite; \r
-And through all numbers absolute, though One: \r
-But Man by number is to manifest \r
-His single imperfection, and beget \r
-Like of his like, his image multiplied, \r
-In unity defective; which requires \r
-Collateral love, and dearest amity. \r
-Thou in thy secresy although alone, \r
-Best with thyself accompanied, seekest not \r
-Social communication; yet, so pleased, \r
-Canst raise thy creature to what highth thou wilt \r
-Of union or communion, deified: \r
-I, by conversing, cannot these erect \r
-From prone; nor in their ways complacence find. \r
-Thus I emboldened spake, and freedom used \r
-Permissive, and acceptance found; which gained \r
-This answer from the gracious Voice Divine. \r
-Thus far to try thee, Adam, I was pleased; \r
-And find thee knowing, not of beasts alone, \r
-Which thou hast rightly named, but of thyself; \r
-Expressing well the spirit within thee free, \r
-My image, not imparted to the brute; \r
-Whose fellowship therefore unmeet for thee \r
-Good reason was thou freely shouldst dislike; \r
-And be so minded still: I, ere thou spakest, \r
-Knew it not good for Man to be alone; \r
-And no such company as then thou sawest \r
-Intended thee; for trial only brought, \r
-To see how thou couldest judge of fit and meet: \r
-What next I bring shall please thee, be assured, \r
-Thy likeness, thy fit help, thy other self, \r
-Thy wish exactly to thy heart's desire. \r
-He ended, or I heard no more; for now \r
-My earthly by his heavenly overpowered, \r
-Which it had long stood under, strained to the highth \r
-In that celestial colloquy sublime, \r
-As with an object that excels the sense \r
-Dazzled and spent, sunk down; and sought repair \r
-Of sleep, which instantly fell on me, called \r
-By Nature as in aid, and closed mine eyes. \r
-Mine eyes he closed, but open left the cell \r
-Of fancy, my internal sight; by which, \r
-Abstract as in a trance, methought I saw, \r
-Though sleeping, where I lay, and saw the shape \r
-Still glorious before whom awake I stood: \r
-Who stooping opened my left side, and took \r
-From thence a rib, with cordial spirits warm, \r
-And life-blood streaming fresh; wide was the wound, \r
-But suddenly with flesh filled up and healed: \r
-The rib he formed and fashioned with his hands; \r
-Under his forming hands a creature grew, \r
-Man-like, but different sex; so lovely fair, \r
-That what seemed fair in all the world, seemed now \r
-Mean, or in her summed up, in her contained \r
-And in her looks; which from that time infused \r
-Sweetness into my heart, unfelt before, \r
-And into all things from her air inspired \r
-The spirit of love and amorous delight. \r
-She disappeared, and left me dark; I waked \r
-To find her, or for ever to deplore \r
-Her loss, and other pleasures all abjure: \r
-When out of hope, behold her, not far off, \r
-Such as I saw her in my dream, adorned \r
-With what all Earth or Heaven could bestow \r
-To make her amiable: On she came, \r
-Led by her heavenly Maker, though unseen, \r
-And guided by his voice; nor uninformed \r
-Of nuptial sanctity, and marriage rites: \r
-Grace was in all her steps, Heaven in her eye, \r
-In every gesture dignity and love. \r
-I, overjoyed, could not forbear aloud. \r
-This turn hath made amends; thou hast fulfilled \r
-Thy words, Creator bounteous and benign, \r
-Giver of all things fair! but fairest this \r
-Of all thy gifts! nor enviest. I now see \r
-Bone of my bone, flesh of my flesh, myself \r
-Before me: Woman is her name;of Man \r
-Extracted: for this cause he shall forego \r
-Father and mother, and to his wife adhere; \r
-And they shall be one flesh, one heart, one soul. \r
-She heard me thus; and though divinely brought, \r
-Yet innocence, and virgin modesty, \r
-Her virtue, and the conscience of her worth, \r
-That would be wooed, and not unsought be won, \r
-Not obvious, not obtrusive, but, retired, \r
-The more desirable; or, to say all, \r
-Nature herself, though pure of sinful thought, \r
-Wrought in her so, that, seeing me, she turned: \r
-I followed her; she what was honour knew, \r
-And with obsequious majesty approved \r
-My pleaded reason. To the nuptial bower \r
-I led her blushing like the morn: All Heaven, \r
-And happy constellations, on that hour \r
-Shed their selectest influence; the Earth \r
-Gave sign of gratulation, and each hill; \r
-Joyous the birds; fresh gales and gentle airs \r
-Whispered it to the woods, and from their wings \r
-Flung rose, flung odours from the spicy shrub, \r
-Disporting, till the amorous bird of night \r
-Sung spousal, and bid haste the evening-star \r
-On his hill top, to light the bridal lamp. \r
-Thus have I told thee all my state, and brought \r
-My story to the sum of earthly bliss, \r
-Which I enjoy; and must confess to find \r
-In all things else delight indeed, but such \r
-As, used or not, works in the mind no change, \r
-Nor vehement desire; these delicacies \r
-I mean of taste, sight, smell, herbs, fruits, and flowers, \r
-Walks, and the melody of birds: but here \r
-Far otherwise, transported I behold, \r
-Transported touch; here passion first I felt, \r
-Commotion strange! in all enjoyments else \r
-Superiour and unmoved; here only weak \r
-Against the charm of Beauty's powerful glance. \r
-Or Nature failed in me, and left some part \r
-Not proof enough such object to sustain; \r
-Or, from my side subducting, took perhaps \r
-More than enough; at least on her bestowed \r
-Too much of ornament, in outward show \r
-Elaborate, of inward less exact. \r
-For well I understand in the prime end \r
-Of Nature her the inferiour, in the mind \r
-And inward faculties, which most excel; \r
-In outward also her resembling less \r
-His image who made both, and less expressing \r
-The character of that dominion given \r
-O'er other creatures: Yet when I approach \r
-Her loveliness, so absolute she seems \r
-And in herself complete, so well to know \r
-Her own, that what she wills to do or say, \r
-Seems wisest, virtuousest, discreetest, best: \r
-All higher knowledge in her presence falls \r
-Degraded; Wisdom in discourse with her \r
-Loses discountenanced, and like Folly shows; \r
-Authority and Reason on her wait, \r
-As one intended first, not after made \r
-Occasionally; and, to consummate all, \r
-Greatness of mind and Nobleness their seat \r
-Build in her loveliest, and create an awe \r
-About her, as a guard angelick placed. \r
-To whom the Angel with contracted brow. \r
-Accuse not Nature, she hath done her part; \r
-Do thou but thine; and be not diffident \r
-Of Wisdom; she deserts thee not, if thou \r
-Dismiss not her, when most thou needest her nigh, \r
-By attributing overmuch to things \r
-Less excellent, as thou thyself perceivest. \r
-For, what admirest thou, what transports thee so, \r
-An outside? fair, no doubt, and worthy well \r
-Thy cherishing, thy honouring, and thy love; \r
-Not thy subjection: Weigh with her thyself; \r
-Then value: Oft-times nothing profits more \r
-Than self-esteem, grounded on just and right \r
-Well managed; of that skill the more thou knowest, \r
-The more she will acknowledge thee her head, \r
-And to realities yield all her shows: \r
-Made so adorn for thy delight the more, \r
-So awful, that with honour thou mayest love \r
-Thy mate, who sees when thou art seen least wise. \r
-But if the sense of touch, whereby mankind \r
-Is propagated, seem such dear delight \r
-Beyond all other; think the same vouchsafed \r
-To cattle and each beast; which would not be \r
-To them made common and divulged, if aught \r
-Therein enjoyed were worthy to subdue \r
-The soul of man, or passion in him move. \r
-What higher in her society thou findest \r
-Attractive, human, rational, love still; \r
-In loving thou dost well, in passion not, \r
-Wherein true love consists not: Love refines \r
-The thoughts, and heart enlarges; hath his seat \r
-In reason, and is judicious; is the scale \r
-By which to heavenly love thou mayest ascend, \r
-Not sunk in carnal pleasure; for which cause, \r
-Among the beasts no mate for thee was found. \r
-To whom thus, half abashed, Adam replied. \r
-Neither her outside formed so fair, nor aught \r
-In procreation common to all kinds, \r
-(Though higher of the genial bed by far, \r
-And with mysterious reverence I deem,) \r
-So much delights me, as those graceful acts, \r
-Those thousand decencies, that daily flow \r
-From all her words and actions mixed with love \r
-And sweet compliance, which declare unfeigned \r
-Union of mind, or in us both one soul; \r
-Harmony to behold in wedded pair \r
-More grateful than harmonious sound to the ear. \r
-Yet these subject not; I to thee disclose \r
-What inward thence I feel, not therefore foiled, \r
-Who meet with various objects, from the sense \r
-Variously representing; yet, still free, \r
-Approve the best, and follow what I approve. \r
-To love, thou blamest me not; for Love, thou sayest, \r
-Leads up to Heaven, is both the way and guide; \r
-Bear with me then, if lawful what I ask: \r
-Love not the heavenly Spirits, and how their love \r
-Express they? by looks only? or do they mix \r
-Irradiance, virtual or immediate touch? \r
-To whom the Angel, with a smile that glowed \r
-Celestial rosy red, Love's proper hue, \r
-Answered. Let it suffice thee that thou knowest \r
-Us happy, and without love no happiness. \r
-Whatever pure thou in the body enjoyest, \r
-(And pure thou wert created) we enjoy \r
-In eminence; and obstacle find none \r
-Of membrane, joint, or limb, exclusive bars; \r
-Easier than air with air, if Spirits embrace, \r
-Total they mix, union of pure with pure \r
-Desiring, nor restrained conveyance need, \r
-As flesh to mix with flesh, or soul with soul. \r
-But I can now no more; the parting sun \r
-Beyond the Earth's green Cape and verdant Isles \r
-Hesperian sets, my signal to depart. \r
-Be strong, live happy, and love! But, first of all, \r
-Him, whom to love is to obey, and keep \r
-His great command; take heed lest passion sway \r
-Thy judgement to do aught, which else free will \r
-Would not admit: thine, and of all thy sons, \r
-The weal or woe in thee is placed; beware! \r
-I in thy persevering shall rejoice, \r
-And all the Blest: Stand fast;to stand or fall \r
-Free in thine own arbitrement it lies. \r
-Perfect within, no outward aid require; \r
-And all temptation to transgress repel. \r
-So saying, he arose; whom Adam thus \r
-Followed with benediction. Since to part, \r
-Go, heavenly guest, ethereal Messenger, \r
-Sent from whose sovran goodness I adore! \r
-Gentle to me and affable hath been \r
-Thy condescension, and shall be honoured ever \r
-With grateful memory: Thou to mankind \r
-Be good and friendly still, and oft return! \r
-So parted they; the Angel up to Heaven \r
-From the thick shade, and Adam to his bower. \r
- \r
- \r
- \r
-Book IX \r
- \r
- \r
-No more of talk where God or Angel guest \r
-With Man, as with his friend, familiar us'd, \r
-To sit indulgent, and with him partake \r
-Rural repast; permitting him the while \r
-Venial discourse unblam'd. I now must change \r
-Those notes to tragick; foul distrust, and breach \r
-Disloyal on the part of Man, revolt, \r
-And disobedience: on the part of Heaven \r
-Now alienated, distance and distaste, \r
-Anger and just rebuke, and judgement given, \r
-That brought into this world a world of woe, \r
-Sin and her shadow Death, and Misery \r
-Death's harbinger: Sad talk!yet argument \r
-Not less but more heroick than the wrath \r
-Of stern Achilles on his foe pursued \r
-Thrice fugitive about Troy wall; or rage \r
-Of Turnus for Lavinia disespous'd; \r
-Or Neptune's ire, or Juno's, that so long \r
-Perplexed the Greek, and Cytherea's son: \r
- \r
- 00482129 \r
-If answerable style I can obtain \r
-Of my celestial patroness, who deigns \r
-Her nightly visitation unimplor'd, \r
-And dictates to me slumbering; or inspires \r
-Easy my unpremeditated verse: \r
-Since first this subject for heroick song \r
-Pleas'd me long choosing, and beginning late; \r
-Not sedulous by nature to indite \r
-Wars, hitherto the only argument \r
-Heroick deem'd chief mastery to dissect \r
-With long and tedious havock fabled knights \r
-In battles feign'd; the better fortitude \r
-Of patience and heroick martyrdom \r
-Unsung; or to describe races and games, \r
-Or tilting furniture, imblazon'd shields, \r
-Impresses quaint, caparisons and steeds, \r
-Bases and tinsel trappings, gorgeous knights \r
-At joust and tournament; then marshall'd feast \r
-Serv'd up in hall with sewers and seneshals; \r
-The skill of artifice or office mean, \r
-Not that which justly gives heroick name \r
-To person, or to poem. Me, of these \r
-Nor skill'd nor studious, higher argument \r
-Remains; sufficient of itself to raise \r
-That name, unless an age too late, or cold \r
-Climate, or years, damp my intended wing \r
-Depress'd; and much they may, if all be mine, \r
-Not hers, who brings it nightly to my ear. \r
-The sun was sunk, and after him the star \r
-Of Hesperus, whose office is to bring \r
-Twilight upon the earth, short arbiter \r
-"twixt day and night, and now from end to end \r
-Night's hemisphere had veil'd the horizon round: \r
-When satan, who late fled before the threats \r
-Of Gabriel out of Eden, now improv'd \r
-In meditated fraud and malice, bent \r
-On Man's destruction, maugre what might hap \r
-Of heavier on himself, fearless returned \r
-From compassing the earth; cautious of day, \r
-Since Uriel, regent of the sun, descried \r
-His entrance, and foreworned the Cherubim \r
-That kept their watch; thence full of anguish driven, \r
-The space of seven continued nights he rode \r
-With darkness; thrice the equinoctial line \r
-He circled; four times crossed the car of night \r
-From pole to pole, traversing each colure; \r
-On the eighth returned; and, on the coast averse \r
-From entrance or Cherubick watch, by stealth \r
-Found unsuspected way. There was a place, \r
-Now not, though sin, not time, first wrought the change, \r
-Where Tigris, at the foot of Paradise, \r
-Into a gulf shot under ground, till part \r
-Rose up a fountain by the tree of life: \r
-In with the river sunk, and with it rose \r
-Satan, involved in rising mist; then sought \r
-Where to lie hid; sea he had searched, and land, \r
-From Eden over Pontus and the pool \r
-Maeotis, up beyond the river Ob; \r
-Downward as far antarctick; and in length, \r
-West from Orontes to the ocean barred \r
-At Darien ; thence to the land where flows \r
-Ganges and Indus: Thus the orb he roamed \r
-With narrow search; and with inspection deep \r
-Considered every creature, which of all \r
-Most opportune might serve his wiles; and found \r
-The Serpent subtlest beast of all the field. \r
-Him after long debate, irresolute \r
-Of thoughts revolved, his final sentence chose \r
-Fit vessel, fittest imp of fraud, in whom \r
-To enter, and his dark suggestions hide \r
-From sharpest sight: for, in the wily snake \r
-Whatever sleights, none would suspicious mark, \r
-As from his wit and native subtlety \r
-Proceeding; which, in other beasts observed, \r
-Doubt might beget of diabolick power \r
-Active within, beyond the sense of brute. \r
-Thus he resolved, but first from inward grief \r
-His bursting passion into plaints thus poured. \r
-More justly, seat worthier of Gods, as built \r
-With second thoughts, reforming what was old! \r
-O Earth, how like to Heaven, if not preferred \r
-For what God, after better, worse would build? \r
-Terrestrial Heaven, danced round by other Heavens \r
-That shine, yet bear their bright officious lamps, \r
-Light above light, for thee alone, as seems, \r
-In thee concentring all their precious beams \r
-Of sacred influence! As God in Heaven \r
-Is center, yet extends to all; so thou, \r
-Centring, receivest from all those orbs: in thee, \r
-Not in themselves, all their known virtue appears \r
-Productive in herb, plant, and nobler birth \r
-Of creatures animate with gradual life \r
-Of growth, sense, reason, all summed up in Man. \r
-With what delight could I have walked thee round, \r
-If I could joy in aught, sweet interchange \r
-Of hill, and valley, rivers, woods, and plains, \r
-Now land, now sea and shores with forest crowned, \r
-Rocks, dens, and caves! But I in none of these \r
-Find place or refuge; and the more I see \r
-Pleasures about me, so much more I feel \r
-Torment within me, as from the hateful siege \r
-Of contraries: all good to me becomes \r
-Bane, and in Heaven much worse would be my state. \r
-But neither here seek I, no nor in Heaven \r
-To dwell, unless by mastering Heaven's Supreme; \r
-Nor hope to be myself less miserable \r
-By what I seek, but others to make such \r
-As I, though thereby worse to me redound: \r
-For only in destroying I find ease \r
-To my relentless thoughts; and, him destroyed, \r
-Or won to what may work his utter loss, \r
-For whom all this was made, all this will soon \r
-Follow, as to him linked in weal or woe; \r
-In woe then; that destruction wide may range: \r
-To me shall be the glory sole among \r
-The infernal Powers, in one day to have marred \r
-What he, Almighty styled, six nights and days \r
-Continued making; and who knows how long \r
-Before had been contriving? though perhaps \r
-Not longer than since I, in one night, freed \r
-From servitude inglorious well nigh half \r
-The angelick name, and thinner left the throng \r
-Of his adorers: He, to be avenged, \r
-And to repair his numbers thus impaired, \r
-Whether such virtue spent of old now failed \r
-More Angels to create, if they at least \r
-Are his created, or, to spite us more, \r
-Determined to advance into our room \r
-A creature formed of earth, and him endow, \r
-Exalted from so base original, \r
-With heavenly spoils, our spoils: What he decreed, \r
-He effected; Man he made, and for him built \r
-Magnificent this world, and earth his seat, \r
-Him lord pronounced; and, O indignity! \r
-Subjected to his service angel-wings, \r
-And flaming ministers to watch and tend \r
-Their earthly charge: Of these the vigilance \r
-I dread; and, to elude, thus wrapt in mist \r
-Of midnight vapour glide obscure, and pry \r
-In every bush and brake, where hap may find \r
-The serpent sleeping; in whose mazy folds \r
-To hide me, and the dark intent I bring. \r
-O foul descent! that I, who erst contended \r
-With Gods to sit the highest, am now constrained \r
-Into a beast; and, mixed with bestial slime, \r
-This essence to incarnate and imbrute, \r
-That to the highth of Deity aspired! \r
-But what will not ambition and revenge \r
-Descend to? Who aspires, must down as low \r
-As high he soared; obnoxious, first or last, \r
-To basest things. Revenge, at first though sweet, \r
-Bitter ere long, back on itself recoils: \r
-Let it; I reck not, so it light well aimed, \r
-Since higher I fall short, on him who next \r
-Provokes my envy, this new favourite \r
-Of Heaven, this man of clay, son of despite, \r
-Whom, us the more to spite, his Maker raised \r
-From dust: Spite then with spite is best repaid. \r
-So saying, through each thicket dank or dry, \r
-Like a black mist low-creeping, he held on \r
-His midnight-search, where soonest he might find \r
-The serpent; him fast-sleeping soon he found \r
-In labyrinth of many a round self-rolled, \r
-His head the midst, well stored with subtile wiles: \r
-Not yet in horrid shade or dismal den, \r
-Nor nocent yet; but, on the grassy herb, \r
-Fearless unfeared he slept: in at his mouth \r
-The Devil entered; and his brutal sense, \r
-In heart or head, possessing, soon inspired \r
-With act intelligential; but his sleep \r
-Disturbed not, waiting close the approach of morn. \r
-Now, when as sacred light began to dawn \r
-In Eden on the humid flowers, that breathed \r
-Their morning incense, when all things, that breathe, \r
-From the Earth's great altar send up silent praise \r
-To the Creator, and his nostrils fill \r
-With grateful smell, forth came the human pair, \r
-And joined their vocal worship to the quire \r
-Of creatures wanting voice; that done, partake \r
-The season prime for sweetest scents and airs: \r
-Then commune, how that day they best may ply \r
-Their growing work: for much their work out-grew \r
-The hands' dispatch of two gardening so wide, \r
-And Eve first to her husband thus began. \r
-Adam, well may we labour still to dress \r
-This garden, still to tend plant, herb, and flower, \r
-Our pleasant task enjoined; but, till more hands \r
-Aid us, the work under our labour grows, \r
-Luxurious by restraint; what we by day \r
-Lop overgrown, or prune, or prop, or bind, \r
-One night or two with wanton growth derides \r
-Tending to wild. Thou therefore now advise, \r
-Or bear what to my mind first thoughts present: \r
-Let us divide our labours; thou, where choice \r
-Leads thee, or where most needs, whether to wind \r
-The woodbine round this arbour, or direct \r
-The clasping ivy where to climb; while I, \r
-In yonder spring of roses intermixed \r
-With myrtle, find what to redress till noon: \r
-For, while so near each other thus all day \r
-Our task we choose, what wonder if so near \r
-Looks intervene and smiles, or object new \r
-Casual discourse draw on; which intermits \r
-Our day's work, brought to little, though begun \r
-Early, and the hour of supper comes unearned? \r
-To whom mild answer Adam thus returned. \r
-Sole Eve, associate sole, to me beyond \r
-Compare above all living creatures dear! \r
-Well hast thou motioned, well thy thoughts employed, \r
-How we might best fulfil the work which here \r
-God hath assigned us; nor of me shalt pass \r
-Unpraised: for nothing lovelier can be found \r
-In woman, than to study houshold good, \r
-And good works in her husband to promote. \r
-Yet not so strictly hath our Lord imposed \r
-Labour, as to debar us when we need \r
-Refreshment, whether food, or talk between, \r
-Food of the mind, or this sweet intercourse \r
-Of looks and smiles; for smiles from reason flow, \r
-To brute denied, and are of love the food; \r
-Love, not the lowest end of human life. \r
-For not to irksome toil, but to delight, \r
-He made us, and delight to reason joined. \r
-These paths and bowers doubt not but our joint hands \r
-Will keep from wilderness with ease, as wide \r
-As we need walk, till younger hands ere long \r
-Assist us; But, if much converse perhaps \r
-Thee satiate, to short absence I could yield: \r
-For solitude sometimes is best society, \r
-And short retirement urges sweet return. \r
-But other doubt possesses me, lest harm \r
-Befall thee severed from me; for thou knowest \r
-What hath been warned us, what malicious foe \r
-Envying our happiness, and of his own \r
-Despairing, seeks to work us woe and shame \r
-By sly assault; and somewhere nigh at hand \r
-Watches, no doubt, with greedy hope to find \r
-His wish and best advantage, us asunder; \r
-Hopeless to circumvent us joined, where each \r
-To other speedy aid might lend at need: \r
-Whether his first design be to withdraw \r
-Our fealty from God, or to disturb \r
-Conjugal love, than which perhaps no bliss \r
-Enjoyed by us excites his envy more; \r
-Or this, or worse, leave not the faithful side \r
-That gave thee being, still shades thee, and protects. \r
-The wife, where danger or dishonour lurks, \r
-Safest and seemliest by her husband stays, \r
-Who guards her, or with her the worst endures. \r
-To whom the virgin majesty of Eve, \r
-As one who loves, and some unkindness meets, \r
-With sweet austere composure thus replied. \r
-Offspring of Heaven and Earth, and all Earth's Lord! \r
-That such an enemy we have, who seeks \r
-Our ruin, both by thee informed I learn, \r
-And from the parting Angel over-heard, \r
-As in a shady nook I stood behind, \r
-Just then returned at shut of evening flowers. \r
-But, that thou shouldst my firmness therefore doubt \r
-To God or thee, because we have a foe \r
-May tempt it, I expected not to hear. \r
-His violence thou fearest not, being such \r
-As we, not capable of death or pain, \r
-Can either not receive, or can repel. \r
-His fraud is then thy fear; which plain infers \r
-Thy equal fear, that my firm faith and love \r
-Can by his fraud be shaken or seduced; \r
-Thoughts, which how found they harbour in thy breast, \r
-Adam, mis-thought of her to thee so dear? \r
-To whom with healing words Adam replied. \r
-Daughter of God and Man, immortal Eve! \r
-For such thou art; from sin and blame entire: \r
-Not diffident of thee do I dissuade \r
-Thy absence from my sight, but to avoid \r
-The attempt itself, intended by our foe. \r
-For he who tempts, though in vain, at least asperses \r
-The tempted with dishonour foul; supposed \r
-Not incorruptible of faith, not proof \r
-Against temptation: Thou thyself with scorn \r
-And anger wouldst resent the offered wrong, \r
-Though ineffectual found: misdeem not then, \r
-If such affront I labour to avert \r
-From thee alone, which on us both at once \r
-The enemy, though bold, will hardly dare; \r
-Or daring, first on me the assault shall light. \r
-Nor thou his malice and false guile contemn; \r
-Subtle he needs must be, who could seduce \r
-Angels; nor think superfluous other's aid. \r
-I, from the influence of thy looks, receive \r
-Access in every virtue; in thy sight \r
-More wise, more watchful, stronger, if need were \r
-Of outward strength; while shame, thou looking on, \r
-Shame to be overcome or over-reached, \r
-Would utmost vigour raise, and raised unite. \r
-Why shouldst not thou like sense within thee feel \r
-When I am present, and thy trial choose \r
-With me, best witness of thy virtue tried? \r
-So spake domestick Adam in his care \r
-And matrimonial love; but Eve, who thought \r
-Less attributed to her faith sincere, \r
-Thus her reply with accent sweet renewed. \r
-If this be our condition, thus to dwell \r
-In narrow circuit straitened by a foe, \r
-Subtle or violent, we not endued \r
-Single with like defence, wherever met; \r
-How are we happy, still in fear of harm? \r
-But harm precedes not sin: only our foe, \r
-Tempting, affronts us with his foul esteem \r
-Of our integrity: his foul esteem \r
-Sticks no dishonour on our front, but turns \r
-Foul on himself; then wherefore shunned or feared \r
-By us? who rather double honour gain \r
-From his surmise proved false; find peace within, \r
-Favour from Heaven, our witness, from the event. \r
-And what is faith, love, virtue, unassayed \r
-Alone, without exteriour help sustained? \r
-Let us not then suspect our happy state \r
-Left so imperfect by the Maker wise, \r
-As not secure to single or combined. \r
-Frail is our happiness, if this be so, \r
-And Eden were no Eden, thus exposed. \r
-To whom thus Adam fervently replied. \r
-O Woman, best are all things as the will \r
-Of God ordained them: His creating hand \r
-Nothing imperfect or deficient left \r
-Of all that he created, much less Man, \r
-Or aught that might his happy state secure, \r
-Secure from outward force; within himself \r
-The danger lies, yet lies within his power: \r
-Against his will he can receive no harm. \r
-But God left free the will; for what obeys \r
-Reason, is free; and Reason he made right, \r
-But bid her well be ware, and still erect; \r
-Lest, by some fair-appearing good surprised, \r
-She dictate false; and mis-inform the will \r
-To do what God expressly hath forbid. \r
-Not then mistrust, but tender love, enjoins, \r
-That I should mind thee oft; and mind thou me. \r
-Firm we subsist, yet possible to swerve; \r
-Since Reason not impossibly may meet \r
-Some specious object by the foe suborned, \r
-And fall into deception unaware, \r
-Not keeping strictest watch, as she was warned. \r
-Seek not temptation then, which to avoid \r
-Were better, and most likely if from me \r
-Thou sever not: Trial will come unsought. \r
-Wouldst thou approve thy constancy, approve \r
-First thy obedience; the other who can know, \r
-Not seeing thee attempted, who attest? \r
-But, if thou think, trial unsought may find \r
-Us both securer than thus warned thou seemest, \r
-Go; for thy stay, not free, absents thee more; \r
-Go in thy native innocence, rely \r
-On what thou hast of virtue; summon all! \r
-For God towards thee hath done his part, do thine. \r
-So spake the patriarch of mankind; but Eve \r
-Persisted; yet submiss, though last, replied. \r
-With thy permission then, and thus forewarned \r
-Chiefly by what thy own last reasoning words \r
-Touched only; that our trial, when least sought, \r
-May find us both perhaps far less prepared, \r
-The willinger I go, nor much expect \r
-A foe so proud will first the weaker seek; \r
-So bent, the more shall shame him his repulse. \r
-Thus saying, from her husband's hand her hand \r
-Soft she withdrew; and, like a Wood-Nymph light, \r
-Oread or Dryad, or of Delia's train, \r
-Betook her to the groves; but Delia's self \r
-In gait surpassed, and Goddess-like deport, \r
-Though not as she with bow and quiver armed, \r
-But with such gardening tools as Art yet rude, \r
-Guiltless of fire, had formed, or Angels brought. \r
-To Pales, or Pomona, thus adorned, \r
-Likest she seemed, Pomona when she fled \r
-Vertumnus, or to Ceres in her prime, \r
-Yet virgin of Proserpina from Jove. \r
-Her long with ardent look his eye pursued \r
-Delighted, but desiring more her stay. \r
-Oft he to her his charge of quick return \r
-Repeated; she to him as oft engaged \r
-To be returned by noon amid the bower, \r
-And all things in best order to invite \r
-Noontide repast, or afternoon's repose. \r
-O much deceived, much failing, hapless Eve, \r
-Of thy presumed return! event perverse! \r
-Thou never from that hour in Paradise \r
-Foundst either sweet repast, or sound repose; \r
-Such ambush, hid among sweet flowers and shades, \r
-Waited with hellish rancour imminent \r
-To intercept thy way, or send thee back \r
-Despoiled of innocence, of faith, of bliss! \r
-For now, and since first break of dawn, the Fiend, \r
-Mere serpent in appearance, forth was come; \r
-And on his quest, where likeliest he might find \r
-The only two of mankind, but in them \r
-The whole included race, his purposed prey. \r
-In bower and field he sought, where any tuft \r
-Of grove or garden-plot more pleasant lay, \r
-Their tendance, or plantation for delight; \r
-By fountain or by shady rivulet \r
-He sought them both, but wished his hap might find \r
-Eve separate; he wished, but not with hope \r
-Of what so seldom chanced; when to his wish, \r
-Beyond his hope, Eve separate he spies, \r
-Veiled in a cloud of fragrance, where she stood, \r
-Half spied, so thick the roses blushing round \r
-About her glowed, oft stooping to support \r
-Each flower of slender stalk, whose head, though gay \r
-Carnation, purple, azure, or specked with gold, \r
-Hung drooping unsustained; them she upstays \r
-Gently with myrtle band, mindless the while \r
-Herself, though fairest unsupported flower, \r
-From her best prop so far, and storm so nigh. \r
-Nearer he drew, and many a walk traversed \r
-Of stateliest covert, cedar, pine, or palm; \r
-Then voluble and bold, now hid, now seen, \r
-Among thick-woven arborets, and flowers \r
-Imbordered on each bank, the hand of Eve: \r
-Spot more delicious than those gardens feigned \r
-Or of revived Adonis, or renowned \r
-Alcinous, host of old Laertes' son; \r
-Or that, not mystick, where the sapient king \r
-Held dalliance with his fair Egyptian spouse. \r
-Much he the place admired, the person more. \r
-As one who long in populous city pent, \r
-Where houses thick and sewers annoy the air, \r
-Forth issuing on a summer's morn, to breathe \r
-Among the pleasant villages and farms \r
-Adjoined, from each thing met conceives delight; \r
-The smell of grain, or tedded grass, or kine, \r
-Or dairy, each rural sight, each rural sound; \r
-If chance, with nymph-like step, fair virgin pass, \r
-What pleasing seemed, for her now pleases more; \r
-She most, and in her look sums all delight: \r
-Such pleasure took the Serpent to behold \r
-This flowery plat, the sweet recess of Eve \r
-Thus early, thus alone: Her heavenly form \r
-Angelick, but more soft, and feminine, \r
-Her graceful innocence, her every air \r
-Of gesture, or least action, overawed \r
-His malice, and with rapine sweet bereaved \r
-His fierceness of the fierce intent it brought: \r
-That space the Evil-one abstracted stood \r
-From his own evil, and for the time remained \r
-Stupidly good; of enmity disarmed, \r
-Of guile, of hate, of envy, of revenge: \r
-But the hot Hell that always in him burns, \r
-Though in mid Heaven, soon ended his delight, \r
-And tortures him now more, the more he sees \r
-Of pleasure, not for him ordained: then soon \r
-Fierce hate he recollects, and all his thoughts \r
-Of mischief, gratulating, thus excites. \r
-Thoughts, whither have ye led me! with what sweet \r
-Compulsion thus transported, to forget \r
-What hither brought us! hate, not love;nor hope \r
-Of Paradise for Hell, hope here to taste \r
-Of pleasure; but all pleasure to destroy, \r
-Save what is in destroying; other joy \r
-To me is lost. Then, let me not let pass \r
-Occasion which now smiles; behold alone \r
-The woman, opportune to all attempts, \r
-Her husband, for I view far round, not nigh, \r
-Whose higher intellectual more I shun, \r
-And strength, of courage haughty, and of limb \r
-Heroick built, though of terrestrial mould; \r
-Foe not informidable! exempt from wound, \r
-I not; so much hath Hell debased, and pain \r
-Enfeebled me, to what I was in Heaven. \r
-She fair, divinely fair, fit love for Gods! \r
-Not terrible, though terrour be in love \r
-And beauty, not approached by stronger hate, \r
-Hate stronger, under show of love well feigned; \r
-The way which to her ruin now I tend. \r
-So spake the enemy of mankind, enclosed \r
-In serpent, inmate bad! and toward Eve \r
-Addressed his way: not with indented wave, \r
-Prone on the ground, as since; but on his rear, \r
-Circular base of rising folds, that towered \r
-Fold above fold, a surging maze! his head \r
-Crested aloft, and carbuncle his eyes; \r
-With burnished neck of verdant gold, erect \r
-Amidst his circling spires, that on the grass \r
-Floated redundant: pleasing was his shape \r
-And lovely; never since of serpent-kind \r
-Lovelier, not those that in Illyria changed, \r
-Hermione and Cadmus, or the god \r
-In Epidaurus; nor to which transformed \r
-Ammonian Jove, or Capitoline, was seen; \r
-He with Olympias; this with her who bore \r
-Scipio, the highth of Rome. With tract oblique \r
-At first, as one who sought access, but feared \r
-To interrupt, side-long he works his way. \r
-As when a ship, by skilful steersmen wrought \r
-Nigh river's mouth or foreland, where the wind \r
-Veers oft, as oft so steers, and shifts her sail: \r
-So varied he, and of his tortuous train \r
-Curled many a wanton wreath in sight of Eve, \r
-To lure her eye; she, busied, heard the sound \r
-Of rusling leaves, but minded not, as used \r
-To such disport before her through the field, \r
-From every beast; more duteous at her call, \r
-Than at Circean call the herd disguised. \r
-He, bolder now, uncalled before her stood, \r
-But as in gaze admiring: oft he bowed \r
-His turret crest, and sleek enamelled neck, \r
-Fawning; and licked the ground whereon she trod. \r
-His gentle dumb expression turned at length \r
-The eye of Eve to mark his play; he, glad \r
-Of her attention gained, with serpent-tongue \r
-Organick, or impulse of vocal air, \r
-His fraudulent temptation thus began. \r
-Wonder not, sovran Mistress, if perhaps \r
-Thou canst, who art sole wonder! much less arm \r
-Thy looks, the Heaven of mildness, with disdain, \r
-Displeased that I approach thee thus, and gaze \r
-Insatiate; I thus single;nor have feared \r
-Thy awful brow, more awful thus retired. \r
-Fairest resemblance of thy Maker fair, \r
-Thee all things living gaze on, all things thine \r
-By gift, and thy celestial beauty adore \r
-With ravishment beheld! there best beheld, \r
-Where universally admired; but here \r
-In this enclosure wild, these beasts among, \r
-Beholders rude, and shallow to discern \r
-Half what in thee is fair, one man except, \r
-Who sees thee? and what is one? who should be seen \r
-A Goddess among Gods, adored and served \r
-By Angels numberless, thy daily train. \r
-So glozed the Tempter, and his proem tuned: \r
-Into the heart of Eve his words made way, \r
-Though at the voice much marvelling; at length, \r
-Not unamazed, she thus in answer spake. \r
-What may this mean? language of man pronounced \r
-By tongue of brute, and human sense expressed? \r
-The first, at least, of these I thought denied \r
-To beasts; whom God, on their creation-day, \r
-Created mute to all articulate sound: \r
-The latter I demur; for in their looks \r
-Much reason, and in their actions, oft appears. \r
-Thee, Serpent, subtlest beast of all the field \r
-I knew, but not with human voice endued; \r
-Redouble then this miracle, and say, \r
-How camest thou speakable of mute, and how \r
-To me so friendly grown above the rest \r
-Of brutal kind, that daily are in sight? \r
-Say, for such wonder claims attention due. \r
-To whom the guileful Tempter thus replied. \r
-Empress of this fair world, resplendent Eve! \r
-Easy to me it is to tell thee all \r
-What thou commandest; and right thou shouldst be obeyed: \r
-I was at first as other beasts that graze \r
-The trodden herb, of abject thoughts and low, \r
-As was my food; nor aught but food discerned \r
-Or sex, and apprehended nothing high: \r
-Till, on a day roving the field, I chanced \r
-A goodly tree far distant to behold \r
-Loaden with fruit of fairest colours mixed, \r
-Ruddy and gold: I nearer drew to gaze; \r
-When from the boughs a savoury odour blown, \r
-Grateful to appetite, more pleased my sense \r
-Than smell of sweetest fennel, or the teats \r
-Of ewe or goat dropping with milk at even, \r
-Unsucked of lamb or kid, that tend their play. \r
-To satisfy the sharp desire I had \r
-Of tasting those fair apples, I resolved \r
-Not to defer; hunger and thirst at once, \r
-Powerful persuaders, quickened at the scent \r
-Of that alluring fruit, urged me so keen. \r
-About the mossy trunk I wound me soon; \r
-For, high from ground, the branches would require \r
-Thy utmost reach or Adam's: Round the tree \r
-All other beasts that saw, with like desire \r
-Longing and envying stood, but could not reach. \r
-Amid the tree now got, where plenty hung \r
-Tempting so nigh, to pluck and eat my fill \r
-I spared not; for, such pleasure till that hour, \r
-At feed or fountain, never had I found. \r
-Sated at length, ere long I might perceive \r
-Strange alteration in me, to degree \r
-Of reason in my inward powers; and speech \r
-Wanted not long; though to this shape retained. \r
-Thenceforth to speculations high or deep \r
-I turned my thoughts, and with capacious mind \r
-Considered all things visible in Heaven, \r
-Or Earth, or Middle; all things fair and good: \r
-But all that fair and good in thy divine \r
-Semblance, and in thy beauty's heavenly ray, \r
-United I beheld; no fair to thine \r
-Equivalent or second! which compelled \r
-Me thus, though importune perhaps, to come \r
-And gaze, and worship thee of right declared \r
-Sovran of creatures, universal Dame! \r
-So talked the spirited sly Snake; and Eve, \r
-Yet more amazed, unwary thus replied. \r
-Serpent, thy overpraising leaves in doubt \r
-The virtue of that fruit, in thee first proved: \r
-But say, where grows the tree? from hence how far? \r
-For many are the trees of God that grow \r
-In Paradise, and various, yet unknown \r
-To us; in such abundance lies our choice, \r
-As leaves a greater store of fruit untouched, \r
-Still hanging incorruptible, till men \r
-Grow up to their provision, and more hands \r
-Help to disburden Nature of her birth. \r
-To whom the wily Adder, blithe and glad. \r
-Empress, the way is ready, and not long; \r
-Beyond a row of myrtles, on a flat, \r
-Fast by a fountain, one small thicket past \r
-Of blowing myrrh and balm: if thou accept \r
-My conduct, I can bring thee thither soon \r
-Lead then, said Eve. He, leading, swiftly rolled \r
-In tangles, and made intricate seem straight, \r
-To mischief swift. Hope elevates, and joy \r
-Brightens his crest; as when a wandering fire, \r
-Compact of unctuous vapour, which the night \r
-Condenses, and the cold environs round, \r
-Kindled through agitation to a flame, \r
-Which oft, they say, some evil Spirit attends, \r
-Hovering and blazing with delusive light, \r
-Misleads the amazed night-wanderer from his way \r
-To bogs and mires, and oft through pond or pool; \r
-There swallowed up and lost, from succour far. \r
-So glistered the dire Snake, and into fraud \r
-Led Eve, our credulous mother, to the tree \r
-Of prohibition, root of all our woe; \r
-Which when she saw, thus to her guide she spake. \r
-Serpent, we might have spared our coming hither, \r
-Fruitless to me, though fruit be here to excess, \r
-The credit of whose virtue rest with thee; \r
-Wonderous indeed, if cause of such effects. \r
-But of this tree we may not taste nor touch; \r
-God so commanded, and left that command \r
-Sole daughter of his voice; the rest, we live \r
-Law to ourselves; our reason is our law. \r
-To whom the Tempter guilefully replied. \r
-Indeed! hath God then said that of the fruit \r
-Of all these garden-trees ye shall not eat, \r
-Yet Lords declared of all in earth or air$? \r
-To whom thus Eve, yet sinless. Of the fruit \r
-Of each tree in the garden we may eat; \r
-But of the fruit of this fair tree amidst \r
-The garden, God hath said, Ye shall not eat \r
-Thereof, nor shall ye touch it, lest ye die. \r
-She scarce had said, though brief, when now more bold \r
-The Tempter, but with show of zeal and love \r
-To Man, and indignation at his wrong, \r
-New part puts on; and, as to passion moved, \r
-Fluctuates disturbed, yet comely and in act \r
-Raised, as of some great matter to begin. \r
-As when of old some orator renowned, \r
-In Athens or free Rome, where eloquence \r
-Flourished, since mute! to some great cause addressed, \r
-Stood in himself collected; while each part, \r
-Motion, each act, won audience ere the tongue; \r
-Sometimes in highth began, as no delay \r
-Of preface brooking, through his zeal of right: \r
-So standing, moving, or to highth up grown, \r
-The Tempter, all impassioned, thus began. \r
-O sacred, wise, and wisdom-giving Plant, \r
-Mother of science! now I feel thy power \r
-Within me clear; not only to discern \r
-Things in their causes, but to trace the ways \r
-Of highest agents, deemed however wise. \r
-Queen of this universe! do not believe \r
-Those rigid threats of death: ye shall not die: \r
-How should you? by the fruit? it gives you life \r
-To knowledge; by the threatener? look on me, \r
-Me, who have touched and tasted; yet both live, \r
-And life more perfect have attained than Fate \r
-Meant me, by venturing higher than my lot. \r
-Shall that be shut to Man, which to the Beast \r
-Is open? or will God incense his ire \r
-For such a petty trespass? and not praise \r
-Rather your dauntless virtue, whom the pain \r
-Of death denounced, whatever thing death be, \r
-Deterred not from achieving what might lead \r
-To happier life, knowledge of good and evil; \r
-Of good, how just? of evil, if what is evil \r
-Be real, why not known, since easier shunned? \r
-God therefore cannot hurt ye, and be just; \r
-Not just, not God; not feared then, nor obeyed: \r
-Your fear itself of death removes the fear. \r
-Why then was this forbid? Why, but to awe; \r
-Why, but to keep ye low and ignorant, \r
-His worshippers? He knows that in the day \r
-Ye eat thereof, your eyes that seem so clear, \r
-Yet are but dim, shall perfectly be then \r
-Opened and cleared, and ye shall be as Gods, \r
-Knowing both good and evil, as they know. \r
-That ye shall be as Gods, since I as Man, \r
-Internal Man, is but proportion meet; \r
-I, of brute, human; ye, of human, Gods. \r
-So ye shall die perhaps, by putting off \r
-Human, to put on Gods; death to be wished, \r
-Though threatened, which no worse than this can bring. \r
-And what are Gods, that Man may not become \r
-As they, participating God-like food? \r
-The Gods are first, and that advantage use \r
-On our belief, that all from them proceeds: \r
-I question it; for this fair earth I see, \r
-Warmed by the sun, producing every kind; \r
-Them, nothing: if they all things, who enclosed \r
-Knowledge of good and evil in this tree, \r
-That whoso eats thereof, forthwith attains \r
-Wisdom without their leave? and wherein lies \r
-The offence, that Man should thus attain to know? \r
-What can your knowledge hurt him, or this tree \r
-Impart against his will, if all be his? \r
-Or is it envy? and can envy dwell \r
-In heavenly breasts? These, these, and many more \r
-Causes import your need of this fair fruit. \r
-Goddess humane, reach then, and freely taste! \r
-He ended; and his words, replete with guile, \r
-Into her heart too easy entrance won: \r
-Fixed on the fruit she gazed, which to behold \r
-Might tempt alone; and in her ears the sound \r
-Yet rung of his persuasive words, impregned \r
-With reason, to her seeming, and with truth: \r
-Mean while the hour of noon drew on, and waked \r
-An eager appetite, raised by the smell \r
-So savoury of that fruit, which with desire, \r
-Inclinable now grown to touch or taste, \r
-Solicited her longing eye; yet first \r
-Pausing a while, thus to herself she mused. \r
-Great are thy virtues, doubtless, best of fruits, \r
-Though kept from man, and worthy to be admired; \r
-Whose taste, too long forborn, at first assay \r
-Gave elocution to the mute, and taught \r
-The tongue not made for speech to speak thy praise: \r
-Thy praise he also, who forbids thy use, \r
-Conceals not from us, naming thee the tree \r
-Of knowledge, knowledge both of good and evil; \r
-Forbids us then to taste! but his forbidding \r
-Commends thee more, while it infers the good \r
-By thee communicated, and our want: \r
-For good unknown sure is not had; or, had \r
-And yet unknown, is as not had at all. \r
-In plain then, what forbids he but to know, \r
-Forbids us good, forbids us to be wise? \r
-Such prohibitions bind not. But, if death \r
-Bind us with after-bands, what profits then \r
-Our inward freedom? In the day we eat \r
-Of this fair fruit, our doom is, we shall die! \r
-How dies the Serpent? he hath eaten and lives, \r
-And knows, and speaks, and reasons, and discerns, \r
-Irrational till then. For us alone \r
-Was death invented? or to us denied \r
-This intellectual food, for beasts reserved? \r
-For beasts it seems: yet that one beast which first \r
-Hath tasted envies not, but brings with joy \r
-The good befallen him, author unsuspect, \r
-Friendly to man, far from deceit or guile. \r
-What fear I then? rather, what know to fear \r
-Under this ignorance of good and evil, \r
-Of God or death, of law or penalty? \r
-Here grows the cure of all, this fruit divine, \r
-Fair to the eye, inviting to the taste, \r
-Of virtue to make wise: What hinders then \r
-To reach, and feed at once both body and mind? \r
-So saying, her rash hand in evil hour \r
-Forth reaching to the fruit, she plucked, she eat! \r
-Earth felt the wound; and Nature from her seat, \r
-Sighing through all her works, gave signs of woe, \r
-That all was lost. Back to the thicket slunk \r
-The guilty Serpent; and well might;for Eve, \r
-Intent now wholly on her taste, nought else \r
-Regarded; such delight till then, as seemed, \r
-In fruit she never tasted, whether true \r
-Or fancied so, through expectation high \r
-Of knowledge; not was Godhead from her thought. \r
-Greedily she ingorged without restraint, \r
-And knew not eating death: Satiate at length, \r
-And hightened as with wine, jocund and boon, \r
-Thus to herself she pleasingly began. \r
-O sovran, virtuous, precious of all trees \r
-In Paradise! of operation blest \r
-To sapience, hitherto obscured, infamed. \r
-And thy fair fruit let hang, as to no end \r
-Created; but henceforth my early care, \r
-Not without song, each morning, and due praise, \r
-Shall tend thee, and the fertile burden ease \r
-Of thy full branches offered free to all; \r
-Till, dieted by thee, I grow mature \r
-In knowledge, as the Gods, who all things know; \r
-Though others envy what they cannot give: \r
-For, had the gift been theirs, it had not here \r
-Thus grown. Experience, next, to thee I owe, \r
-Best guide; not following thee, I had remained \r
-In ignorance; thou openest wisdom's way, \r
-And givest access, though secret she retire. \r
-And I perhaps am secret: Heaven is high, \r
-High, and remote to see from thence distinct \r
-Each thing on Earth; and other care perhaps \r
-May have diverted from continual watch \r
-Our great Forbidder, safe with all his spies \r
-About him. But to Adam in what sort \r
-Shall I appear? shall I to him make known \r
-As yet my change, and give him to partake \r
-Full happiness with me, or rather not, \r
-But keeps the odds of knowledge in my power \r
-Without copartner? so to add what wants \r
-In female sex, the more to draw his love, \r
-And render me more equal; and perhaps, \r
-A thing not undesirable, sometime \r
-Superiour; for, inferiour, who is free \r
-This may be well: But what if God have seen, \r
-And death ensue? then I shall be no more! \r
-And Adam, wedded to another Eve, \r
-Shall live with her enjoying, I extinct; \r
-A death to think! Confirmed then I resolve, \r
-Adam shall share with me in bliss or woe: \r
-So dear I love him, that with him all deaths \r
-I could endure, without him live no life. \r
-So saying, from the tree her step she turned; \r
-But first low reverence done, as to the Power \r
-That dwelt within, whose presence had infused \r
-Into the plant sciential sap, derived \r
-From nectar, drink of Gods. Adam the while, \r
-Waiting desirous her return, had wove \r
-Of choicest flowers a garland, to adorn \r
-Her tresses, and her rural labours crown; \r
-As reapers oft are wont their harvest-queen. \r
-Great joy he promised to his thoughts, and new \r
-Solace in her return, so long delayed: \r
-Yet oft his heart, divine of something ill, \r
-Misgave him; he the faltering measure felt; \r
-And forth to meet her went, the way she took \r
-That morn when first they parted: by the tree \r
-Of knowledge he must pass; there he her met, \r
-Scarce from the tree returning; in her hand \r
-A bough of fairest fruit, that downy smiled, \r
-New gathered, and ambrosial smell diffused. \r
-To him she hasted; in her face excuse \r
-Came prologue, and apology too prompt; \r
-Which, with bland words at will, she thus addressed. \r
-Hast thou not wondered, Adam, at my stay? \r
-Thee I have missed, and thought it long, deprived \r
-Thy presence; agony of love till now \r
-Not felt, nor shall be twice; for never more \r
-Mean I to try, what rash untried I sought, \r
-The pain of absence from thy sight. But strange \r
-Hath been the cause, and wonderful to hear: \r
-This tree is not, as we are told, a tree \r
-Of danger tasted, nor to evil unknown \r
-Opening the way, but of divine effect \r
-To open eyes, and make them Gods who taste; \r
-And hath been tasted such: The serpent wise, \r
-Or not restrained as we, or not obeying, \r
-Hath eaten of the fruit; and is become, \r
-Not dead, as we are threatened, but thenceforth \r
-Endued with human voice and human sense, \r
-Reasoning to admiration; and with me \r
-Persuasively hath so prevailed, that I \r
-Have also tasted, and have also found \r
-The effects to correspond; opener mine eyes, \r
-Dim erst, dilated spirits, ampler heart, \r
-And growing up to Godhead; which for thee \r
-Chiefly I sought, without thee can despise. \r
-For bliss, as thou hast part, to me is bliss; \r
-Tedious, unshared with thee, and odious soon. \r
-Thou therefore also taste, that equal lot \r
-May join us, equal joy, as equal love; \r
-Lest, thou not tasting, different degree \r
-Disjoin us, and I then too late renounce \r
-Deity for thee, when Fate will not permit. \r
-Thus Eve with countenance blithe her story told; \r
-But in her cheek distemper flushing glowed. \r
-On the other side Adam, soon as he heard \r
-The fatal trespass done by Eve, amazed, \r
-Astonied stood and blank, while horrour chill \r
-Ran through his veins, and all his joints relaxed; \r
-From his slack hand the garland wreathed for Eve \r
-Down dropt, and all the faded roses shed: \r
-Speechless he stood and pale, till thus at length \r
-First to himself he inward silence broke. \r
-O fairest of Creation, last and best \r
-Of all God's works, Creature in whom excelled \r
-Whatever can to sight or thought be formed, \r
-Holy, divine, good, amiable, or sweet! \r
-How art thou lost! how on a sudden lost, \r
-Defaced, deflowered, and now to death devote! \r
-Rather, how hast thou yielded to transgress \r
-The strict forbiddance, how to violate \r
-The sacred fruit forbidden! Some cursed fraud \r
-Of enemy hath beguiled thee, yet unknown, \r
-And me with thee hath ruined; for with thee \r
-Certain my resolution is to die: \r
-How can I live without thee! how forego \r
-Thy sweet converse, and love so dearly joined, \r
-To live again in these wild woods forlorn! \r
-Should God create another Eve, and I \r
-Another rib afford, yet loss of thee \r
-Would never from my heart: no, no!I feel \r
-The link of Nature draw me: flesh of flesh, \r
-Bone of my bone thou art, and from thy state \r
-Mine never shall be parted, bliss or woe. \r
-So having said, as one from sad dismay \r
-Recomforted, and after thoughts disturbed \r
-Submitting to what seemed remediless, \r
-Thus in calm mood his words to Eve he turned. \r
-Bold deed thou hast presumed, adventurous Eve, \r
-And peril great provoked, who thus hast dared, \r
-Had it been only coveting to eye \r
-That sacred fruit, sacred to abstinence, \r
-Much more to taste it under ban to touch. \r
-But past who can recall, or done undo? \r
-Not God Omnipotent, nor Fate; yet so \r
-Perhaps thou shalt not die, perhaps the fact \r
-Is not so heinous now, foretasted fruit, \r
-Profaned first by the serpent, by him first \r
-Made common, and unhallowed, ere our taste; \r
-Nor yet on him found deadly; yet he lives; \r
-Lives, as thou saidst, and gains to live, as Man, \r
-Higher degree of life; inducement strong \r
-To us, as likely tasting to attain \r
-Proportional ascent; which cannot be \r
-But to be Gods, or Angels, demi-Gods. \r
-Nor can I think that God, Creator wise, \r
-Though threatening, will in earnest so destroy \r
-Us his prime creatures, dignified so high, \r
-Set over all his works; which in our fall, \r
-For us created, needs with us must fail, \r
-Dependant made; so God shall uncreate, \r
-Be frustrate, do, undo, and labour lose; \r
-Not well conceived of God, who, though his power \r
-Creation could repeat, yet would be loth \r
-Us to abolish, lest the Adversary \r
-Triumph, and say; "Fickle their state whom God \r
-"Most favours; who can please him long? Me first \r
-"He ruined, now Mankind; whom will he next?" \r
-Matter of scorn, not to be given the Foe. \r
-However I with thee have fixed my lot, \r
-Certain to undergo like doom: If death \r
-Consort with thee, death is to me as life; \r
-So forcible within my heart I feel \r
-The bond of Nature draw me to my own; \r
-My own in thee, for what thou art is mine; \r
-Our state cannot be severed; we are one, \r
-One flesh; to lose thee were to lose myself. \r
-So Adam; and thus Eve to him replied. \r
-O glorious trial of exceeding love, \r
-Illustrious evidence, example high! \r
-Engaging me to emulate; but, short \r
-Of thy perfection, how shall I attain, \r
-Adam, from whose dear side I boast me sprung, \r
-And gladly of our union hear thee speak, \r
-One heart, one soul in both; whereof good proof \r
-This day affords, declaring thee resolved, \r
-Rather than death, or aught than death more dread, \r
-Shall separate us, linked in love so dear, \r
-To undergo with me one guilt, one crime, \r
-If any be, of tasting this fair fruit; \r
-Whose virtue for of good still good proceeds, \r
-Direct, or by occasion, hath presented \r
-This happy trial of thy love, which else \r
-So eminently never had been known? \r
-Were it I thought death menaced would ensue \r
-This my attempt, I would sustain alone \r
-The worst, and not persuade thee, rather die \r
-Deserted, than oblige thee with a fact \r
-Pernicious to thy peace; chiefly assured \r
-Remarkably so late of thy so true, \r
-So faithful, love unequalled: but I feel \r
-Far otherwise the event; not death, but life \r
-Augmented, opened eyes, new hopes, new joys, \r
-Taste so divine, that what of sweet before \r
-Hath touched my sense, flat seems to this, and harsh. \r
-On my experience, Adam, freely taste, \r
-And fear of death deliver to the winds. \r
-So saying, she embraced him, and for joy \r
-Tenderly wept; much won, that he his love \r
-Had so ennobled, as of choice to incur \r
-Divine displeasure for her sake, or death. \r
-In recompence for such compliance bad \r
-Such recompence best merits from the bough \r
-She gave him of that fair enticing fruit \r
-With liberal hand: he scrupled not to eat, \r
-Against his better knowledge; not deceived, \r
-But fondly overcome with female charm. \r
-Earth trembled from her entrails, as again \r
-In pangs; and Nature gave a second groan; \r
-Sky loured; and, muttering thunder, some sad drops \r
-Wept at completing of the mortal sin \r
-Original: while Adam took no thought, \r
-Eating his fill; nor Eve to iterate \r
-Her former trespass feared, the more to sooth \r
-Him with her loved society; that now, \r
-As with new wine intoxicated both, \r
-They swim in mirth, and fancy that they feel \r
-Divinity within them breeding wings, \r
-Wherewith to scorn the earth: But that false fruit \r
-Far other operation first displayed, \r
-Carnal desire inflaming; he on Eve \r
-Began to cast lascivious eyes; she him \r
-As wantonly repaid; in lust they burn: \r
-Till Adam thus 'gan Eve to dalliance move. \r
-Eve, now I see thou art exact of taste, \r
-And elegant, of sapience no small part; \r
-Since to each meaning savour we apply, \r
-And palate call judicious; I the praise \r
-Yield thee, so well this day thou hast purveyed. \r
-Much pleasure we have lost, while we abstained \r
-From this delightful fruit, nor known till now \r
-True relish, tasting; if such pleasure be \r
-In things to us forbidden, it might be wished, \r
-For this one tree had been forbidden ten. \r
-But come, so well refreshed, now let us play, \r
-As meet is, after such delicious fare; \r
-For never did thy beauty, since the day \r
-I saw thee first and wedded thee, adorned \r
-With all perfections, so inflame my sense \r
-With ardour to enjoy thee, fairer now \r
-Than ever; bounty of this virtuous tree! \r
-So said he, and forbore not glance or toy \r
-Of amorous intent; well understood \r
-Of Eve, whose eye darted contagious fire. \r
-Her hand he seised; and to a shady bank, \r
-Thick over-head with verdant roof imbowered, \r
-He led her nothing loth; flowers were the couch, \r
-Pansies, and violets, and asphodel, \r
-And hyacinth; Earth's freshest softest lap. \r
-There they their fill of love and love's disport \r
-Took largely, of their mutual guilt the seal, \r
-The solace of their sin; till dewy sleep \r
-Oppressed them, wearied with their amorous play, \r
-Soon as the force of that fallacious fruit, \r
-That with exhilarating vapour bland \r
-About their spirits had played, and inmost powers \r
-Made err, was now exhaled; and grosser sleep, \r
-Bred of unkindly fumes, with conscious dreams \r
-Incumbered, now had left them; up they rose \r
-As from unrest; and, each the other viewing, \r
-Soon found their eyes how opened, and their minds \r
-How darkened; innocence, that as a veil \r
-Had shadowed them from knowing ill, was gone; \r
-Just confidence, and native righteousness, \r
-And honour, from about them, naked left \r
-To guilty Shame; he covered, but his robe \r
-Uncovered more. So rose the Danite strong, \r
-Herculean Samson, from the harlot-lap \r
-Of Philistean Dalilah, and waked \r
-Shorn of his strength. They destitute and bare \r
-Of all their virtue: Silent, and in face \r
-Confounded, long they sat, as strucken mute: \r
-Till Adam, though not less than Eve abashed, \r
-At length gave utterance to these words constrained. \r
-O Eve, in evil hour thou didst give ear \r
-To that false worm, of whomsoever taught \r
-To counterfeit Man's voice; true in our fall, \r
-False in our promised rising; since our eyes \r
-Opened we find indeed, and find we know \r
-Both good and evil; good lost, and evil got; \r
-Bad fruit of knowledge, if this be to know; \r
-Which leaves us naked thus, of honour void, \r
-Of innocence, of faith, of purity, \r
-Our wonted ornaments now soiled and stained, \r
-And in our faces evident the signs \r
-Of foul concupiscence; whence evil store; \r
-Even shame, the last of evils; of the first \r
-Be sure then.--How shall I behold the face \r
-Henceforth of God or Angel, erst with joy \r
-And rapture so oft beheld? Those heavenly shapes \r
-Will dazzle now this earthly with their blaze \r
-Insufferably bright. O! might I here \r
-In solitude live savage; in some glade \r
-Obscured, where highest woods, impenetrable \r
-To star or sun-light, spread their umbrage broad \r
-And brown as evening: Cover me, ye Pines! \r
-Ye Cedars, with innumerable boughs \r
-Hide me, where I may never see them more!-- \r
-But let us now, as in bad plight, devise \r
-What best may for the present serve to hide \r
-The parts of each from other, that seem most \r
-To shame obnoxious, and unseemliest seen; \r
-Some tree, whose broad smooth leaves together sewed, \r
-And girded on our loins, may cover round \r
-Those middle parts; that this new comer, Shame, \r
-There sit not, and reproach us as unclean. \r
-So counselled he, and both together went \r
-Into the thickest wood; there soon they chose \r
-The fig-tree; not that kind for fruit renowned, \r
-But such as at this day, to Indians known, \r
-In Malabar or Decan spreads her arms \r
-Branching so broad and long, that in the ground \r
-The bended twigs take root, and daughters grow \r
-About the mother tree, a pillared shade \r
-High over-arched, and echoing walks between: \r
-There oft the Indian herdsman, shunning heat, \r
-Shelters in cool, and tends his pasturing herds \r
-At loop-holes cut through thickest shade: Those leaves \r
-They gathered, broad as Amazonian targe; \r
-And, with what skill they had, together sewed, \r
-To gird their waist; vain covering, if to hide \r
-Their guilt and dreaded shame! O, how unlike \r
-To that first naked glory! Such of late \r
-Columbus found the American, so girt \r
-With feathered cincture; naked else, and wild \r
-Among the trees on isles and woody shores. \r
-Thus fenced, and, as they thought, their shame in part \r
-Covered, but not at rest or ease of mind, \r
-They sat them down to weep; nor only tears \r
-Rained at their eyes, but high winds worse within \r
-Began to rise, high passions, anger, hate, \r
-Mistrust, suspicion, discord; and shook sore \r
-Their inward state of mind, calm region once \r
-And full of peace, now tost and turbulent: \r
-For Understanding ruled not, and the Will \r
-Heard not her lore; both in subjection now \r
-To sensual Appetite, who from beneath \r
-Usurping over sovran Reason claimed \r
-Superiour sway: From thus distempered breast, \r
-Adam, estranged in look and altered style, \r
-Speech intermitted thus to Eve renewed. \r
-Would thou hadst hearkened to my words, and staid \r
-With me, as I besought thee, when that strange \r
-Desire of wandering, this unhappy morn, \r
-I know not whence possessed thee; we had then \r
-Remained still happy; not, as now, despoiled \r
-Of all our good; shamed, naked, miserable! \r
-Let none henceforth seek needless cause to approve \r
-The faith they owe; when earnestly they seek \r
-Such proof, conclude, they then begin to fail. \r
-To whom, soon moved with touch of blame, thus Eve. \r
-What words have passed thy lips, Adam severe! \r
-Imputest thou that to my default, or will \r
-Of wandering, as thou callest it, which who knows \r
-But might as ill have happened thou being by, \r
-Or to thyself perhaps? Hadst thou been there, \r
-Or here the attempt, thou couldst not have discerned \r
-Fraud in the Serpent, speaking as he spake; \r
-No ground of enmity between us known, \r
-Why he should mean me ill, or seek to harm. \r
-Was I to have never parted from thy side? \r
-As good have grown there still a lifeless rib. \r
-Being as I am, why didst not thou, the head, \r
-Command me absolutely not to go, \r
-Going into such danger, as thou saidst? \r
-Too facile then, thou didst not much gainsay; \r
-Nay, didst permit, approve, and fair dismiss. \r
-Hadst thou been firm and fixed in thy dissent, \r
-Neither had I transgressed, nor thou with me. \r
-To whom, then first incensed, Adam replied. \r
-Is this the love, is this the recompence \r
-Of mine to thee, ingrateful Eve! expressed \r
-Immutable, when thou wert lost, not I; \r
-Who might have lived, and joyed immortal bliss, \r
-Yet willingly chose rather death with thee? \r
-And am I now upbraided as the cause \r
-Of thy transgressing? Not enough severe, \r
-It seems, in thy restraint: What could I more \r
-I warned thee, I admonished thee, foretold \r
-The danger, and the lurking enemy \r
-That lay in wait; beyond this, had been force; \r
-And force upon free will hath here no place. \r
-But confidence then bore thee on; secure \r
-Either to meet no danger, or to find \r
-Matter of glorious trial; and perhaps \r
-I also erred, in overmuch admiring \r
-What seemed in thee so perfect, that I thought \r
-No evil durst attempt thee; but I rue \r
-The errour now, which is become my crime, \r
-And thou the accuser. Thus it shall befall \r
-Him, who, to worth in women overtrusting, \r
-Lets her will rule: restraint she will not brook; \r
-And, left to herself, if evil thence ensue, \r
-She first his weak indulgence will accuse. \r
-Thus they in mutual accusation spent \r
-The fruitless hours, but neither self-condemning; \r
-And of their vain contest appeared no end. \r
- \r
- \r
- \r
-Book X \r
- \r
- \r
-Mean while the heinous and despiteful act \r
-Of Satan, done in Paradise; and how \r
-He, in the serpent, had perverted Eve, \r
-Her husband she, to taste the fatal fruit, \r
-Was known in Heaven; for what can 'scape the eye \r
-Of God all-seeing, or deceive his heart \r
-Omniscient? who, in all things wise and just, \r
-Hindered not Satan to attempt the mind \r
-Of Man, with strength entire and free will armed, \r
-Complete to have discovered and repulsed \r
-Whatever wiles of foe or seeming friend. \r
-For still they knew, and ought to have still remembered, \r
-The high injunction, not to taste that fruit, \r
-Whoever tempted; which they not obeying, \r
-(Incurred what could they less?) the penalty; \r
-And, manifold in sin, deserved to fall. \r
-Up into Heaven from Paradise in haste \r
-The angelick guards ascended, mute, and sad, \r
-For Man; for of his state by this they knew, \r
-Much wondering how the subtle Fiend had stolen \r
-Entrance unseen. Soon as the unwelcome news \r
-From Earth arrived at Heaven-gate, displeased \r
-All were who heard; dim sadness did not spare \r
-That time celestial visages, yet, mixed \r
-With pity, violated not their bliss. \r
-About the new-arrived, in multitudes \r
-The ethereal people ran, to hear and know \r
-How all befel: They towards the throne supreme, \r
-Accountable, made haste, to make appear, \r
-With righteous plea, their utmost vigilance \r
-And easily approved; when the Most High \r
-Eternal Father, from his secret cloud, \r
-Amidst in thunder uttered thus his voice. \r
-Assembled Angels, and ye Powers returned \r
-From unsuccessful charge; be not dismayed, \r
-Nor troubled at these tidings from the earth, \r
-Which your sincerest care could not prevent; \r
-Foretold so lately what would come to pass, \r
-When first this tempter crossed the gulf from Hell. \r
-I told ye then he should prevail, and speed \r
-On his bad errand; Man should be seduced, \r
-And flattered out of all, believing lies \r
-Against his Maker; no decree of mine \r
-Concurring to necessitate his fall, \r
-Or touch with lightest moment of impulse \r
-His free will, to her own inclining left \r
-In even scale. But fallen he is; and now \r
-What rests, but that the mortal sentence pass \r
-On his transgression,--death denounced that day? \r
-Which he presumes already vain and void, \r
-Because not yet inflicted, as he feared, \r
-By some immediate stroke; but soon shall find \r
-Forbearance no acquittance, ere day end. \r
-Justice shall not return as bounty scorned. \r
-But whom send I to judge them? whom but thee, \r
-Vicegerent Son? To thee I have transferred \r
-All judgement, whether in Heaven, or Earth, or Hell. \r
-Easy it may be seen that I intend \r
-Mercy colleague with justice, sending thee \r
-Man's friend, his Mediator, his designed \r
-Both ransom and Redeemer voluntary, \r
-And destined Man himself to judge Man fallen. \r
-So spake the Father; and, unfolding bright \r
-Toward the right hand his glory, on the Son \r
-Blazed forth unclouded Deity: He full \r
-Resplendent all his Father manifest \r
-Expressed, and thus divinely answered mild. \r
-Father Eternal, thine is to decree; \r
-Mine, both in Heaven and Earth, to do thy will \r
-Supreme; that thou in me, thy Son beloved, \r
-Mayest ever rest well pleased. I go to judge \r
-On earth these thy transgressours; but thou knowest, \r
-Whoever judged, the worst on me must light, \r
-When time shall be; for so I undertook \r
-Before thee; and, not repenting, this obtain \r
-Of right, that I may mitigate their doom \r
-On me derived; yet I shall temper so \r
-Justice with mercy, as may illustrate most \r
-Them fully satisfied, and thee appease. \r
-Attendance none shall need, nor train, where none \r
-Are to behold the judgement, but the judged, \r
-Those two; the third best absent is condemned, \r
-Convict by flight, and rebel to all law: \r
-Conviction to the serpent none belongs. \r
-Thus saying, from his radiant seat he rose \r
-Of high collateral glory: Him Thrones, and Powers, \r
-Princedoms, and Dominations ministrant, \r
-Accompanied to Heaven-gate; from whence \r
-Eden, and all the coast, in prospect lay. \r
-Down he descended straight; the speed of Gods \r
-Time counts not, though with swiftest minutes winged. \r
-Now was the sun in western cadence low \r
-From noon, and gentle airs, due at their hour, \r
-To fan the earth now waked, and usher in \r
-The evening cool; when he, from wrath more cool, \r
-Came the mild Judge, and Intercessour both, \r
-To sentence Man: The voice of God they heard \r
-Now walking in the garden, by soft winds \r
-Brought to their ears, while day declined; they heard, \r
-And from his presence hid themselves among \r
-The thickest trees, both man and wife; till God, \r
-Approaching, thus to Adam called aloud. \r
-Where art thou, Adam, wont with joy to meet \r
-My coming seen far off? I miss thee here, \r
-Not pleased, thus entertained with solitude, \r
-Where obvious duty ere while appeared unsought: \r
-Or come I less conspicuous, or what change \r
-Absents thee, or what chance detains?--Come forth! \r
-He came; and with him Eve, more loth, though first \r
-To offend; discountenanced both, and discomposed; \r
-Love was not in their looks, either to God, \r
-Or to each other; but apparent guilt, \r
-And shame, and perturbation, and despair, \r
-Anger, and obstinacy, and hate, and guile. \r
-Whence Adam, faltering long, thus answered brief. \r
-I heard thee in the garden, and of thy voice \r
-Afraid, being naked, hid myself. To whom \r
-The gracious Judge without revile replied. \r
-My voice thou oft hast heard, and hast not feared, \r
-But still rejoiced; how is it now become \r
-So dreadful to thee? That thou art naked, who \r
-Hath told thee? Hast thou eaten of the tree, \r
-Whereof I gave thee charge thou shouldst not eat? \r
-To whom thus Adam sore beset replied. \r
-O Heaven! in evil strait this day I stand \r
-Before my Judge; either to undergo \r
-Myself the total crime, or to accuse \r
-My other self, the partner of my life; \r
-Whose failing, while her faith to me remains, \r
-I should conceal, and not expose to blame \r
-By my complaint: but strict necessity \r
-Subdues me, and calamitous constraint; \r
-Lest on my head both sin and punishment, \r
-However insupportable, be all \r
-Devolved; though should I hold my peace, yet thou \r
-Wouldst easily detect what I conceal.-- \r
-This Woman, whom thou madest to be my help, \r
-And gavest me as thy perfect gift, so good, \r
-So fit, so acceptable, so divine, \r
-That from her hand I could suspect no ill, \r
-And what she did, whatever in itself, \r
-Her doing seemed to justify the deed; \r
-She gave me of the tree, and I did eat. \r
-To whom the Sovran Presence thus replied. \r
-Was she thy God, that her thou didst obey \r
-Before his voice? or was she made thy guide, \r
-Superiour, or but equal, that to her \r
-Thou didst resign thy manhood, and the place \r
-Wherein God set thee above her made of thee, \r
-And for thee, whose perfection far excelled \r
-Hers in all real dignity? Adorned \r
-She was indeed, and lovely, to attract \r
-Thy love, not thy subjection; and her gifts \r
-Were such, as under government well seemed; \r
-Unseemly to bear rule; which was thy part \r
-And person, hadst thou known thyself aright. \r
-So having said, he thus to Eve in few. \r
-Say, Woman, what is this which thou hast done? \r
-To whom sad Eve, with shame nigh overwhelmed, \r
-Confessing soon, yet not before her Judge \r
-Bold or loquacious, thus abashed replied. \r
-The Serpent me beguiled, and I did eat. \r
-Which when the Lord God heard, without delay \r
-To judgement he proceeded on the accused \r
-Serpent, though brute; unable to transfer \r
-The guilt on him, who made him instrument \r
-Of mischief, and polluted from the end \r
-Of his creation; justly then accursed, \r
-As vitiated in nature: More to know \r
-Concerned not Man, (since he no further knew) \r
-Nor altered his offence; yet God at last \r
-To Satan first in sin his doom applied, \r
-Though in mysterious terms, judged as then best: \r
-And on the Serpent thus his curse let fall. \r
-Because thou hast done this, thou art accursed \r
-Above all cattle, each beast of the field; \r
-Upon thy belly groveling thou shalt go, \r
-And dust shalt eat all the days of thy life. \r
-Between thee and the woman I will put \r
-Enmity, and between thine and her seed; \r
-Her seed shall bruise thy head, thou bruise his heel. \r
-So spake this oracle, then verified \r
-When Jesus, Son of Mary, second Eve, \r
-Saw Satan fall, like lightning, down from Heaven, \r
-Prince of the air; then, rising from his grave \r
-Spoiled Principalities and Powers, triumphed \r
-In open show; and, with ascension bright, \r
-Captivity led captive through the air, \r
-The realm itself of Satan, long usurped; \r
-Whom he shall tread at last under our feet; \r
-Even he, who now foretold his fatal bruise; \r
-And to the Woman thus his sentence turned. \r
-Thy sorrow I will greatly multiply \r
-By thy conception; children thou shalt bring \r
-In sorrow forth; and to thy husband's will \r
-Thine shall submit; he over thee shall rule. \r
-On Adam last thus judgement he pronounced. \r
-Because thou hast hearkened to the voice of thy wife, \r
-And eaten of the tree, concerning which \r
-I charged thee, saying, Thou shalt not eat thereof: \r
-Cursed is the ground for thy sake; thou in sorrow \r
-Shalt eat thereof, all the days of thy life; \r
-Thorns also and thistles it shall bring thee forth \r
-Unbid; and thou shalt eat the herb of the field; \r
-In the sweat of thy face shalt thou eat bread, \r
-Till thou return unto the ground; for thou \r
-Out of the ground wast taken, know thy birth, \r
-For dust thou art, and shalt to dust return. \r
-So judged he Man, both Judge and Saviour sent; \r
-And the instant stroke of death, denounced that day, \r
-Removed far off; then, pitying how they stood \r
-Before him naked to the air, that now \r
-Must suffer change, disdained not to begin \r
-Thenceforth the form of servant to assume; \r
-As when he washed his servants feet; so now, \r
-As father of his family, he clad \r
-Their nakedness with skins of beasts, or slain, \r
-Or as the snake with youthful coat repaid; \r
-And thought not much to clothe his enemies; \r
-Nor he their outward only with the skins \r
-Of beasts, but inward nakedness, much more. \r
-Opprobrious, with his robe of righteousness, \r
-Arraying, covered from his Father's sight. \r
-To him with swift ascent he up returned, \r
-Into his blissful bosom reassumed \r
-In glory, as of old; to him appeased \r
-All, though all-knowing, what had passed with Man \r
-Recounted, mixing intercession sweet. \r
-Mean while, ere thus was sinned and judged on Earth, \r
-Within the gates of Hell sat Sin and Death, \r
-In counterview within the gates, that now \r
-Stood open wide, belching outrageous flame \r
-Far into Chaos, since the Fiend passed through, \r
-Sin opening; who thus now to Death began. \r
-O Son, why sit we here each other viewing \r
-Idly, while Satan, our great author, thrives \r
-In other worlds, and happier seat provides \r
-For us, his offspring dear? It cannot be \r
-But that success attends him; if mishap, \r
-Ere this he had returned, with fury driven \r
-By his avengers; since no place like this \r
-Can fit his punishment, or their revenge. \r
-Methinks I feel new strength within me rise, \r
-Wings growing, and dominion given me large \r
-Beyond this deep; whatever draws me on, \r
-Or sympathy, or some connatural force, \r
-Powerful at greatest distance to unite, \r
-With secret amity, things of like kind, \r
-By secretest conveyance. Thou, my shade \r
-Inseparable, must with me along; \r
-For Death from Sin no power can separate. \r
-But, lest the difficulty of passing back \r
-Stay his return perhaps over this gulf \r
-Impassable, impervious; let us try \r
-Adventurous work, yet to thy power and mine \r
-Not unagreeable, to found a path \r
-Over this main from Hell to that new world, \r
-Where Satan now prevails; a monument \r
-Of merit high to all the infernal host, \r
-Easing their passage hence, for intercourse, \r
-Or transmigration, as their lot shall lead. \r
-Nor can I miss the way, so strongly drawn \r
-By this new-felt attraction and instinct. \r
-Whom thus the meager Shadow answered soon. \r
-Go, whither Fate, and inclination strong, \r
-Leads thee; I shall not lag behind, nor err \r
-The way, thou leading; such a scent I draw \r
-Of carnage, prey innumerable, and taste \r
-The savour of death from all things there that live: \r
-Nor shall I to the work thou enterprisest \r
-Be wanting, but afford thee equal aid. \r
-So saying, with delight he snuffed the smell \r
-Of mortal change on earth. As when a flock \r
-Of ravenous fowl, though many a league remote, \r
-Against the day of battle, to a field, \r
-Where armies lie encamped, come flying, lured \r
-With scent of living carcasses designed \r
-For death, the following day, in bloody fight: \r
-So scented the grim Feature, and upturned \r
-His nostril wide into the murky air; \r
-Sagacious of his quarry from so far. \r
-Then both from out Hell-gates, into the waste \r
-Wide anarchy of Chaos, damp and dark, \r
-Flew diverse; and with power (their power was great) \r
-Hovering upon the waters, what they met \r
-Solid or slimy, as in raging sea \r
-Tost up and down, together crouded drove, \r
-From each side shoaling towards the mouth of Hell; \r
-As when two polar winds, blowing adverse \r
-Upon the Cronian sea, together drive \r
-Mountains of ice, that stop the imagined way \r
-Beyond Petsora eastward, to the rich \r
-Cathaian coast. The aggregated soil \r
-Death with his mace petrifick, cold and dry, \r
-As with a trident, smote; and fixed as firm \r
-As Delos, floating once; the rest his look \r
-Bound with Gorgonian rigour not to move; \r
-And with Asphaltick slime, broad as the gate, \r
-Deep to the roots of Hell the gathered beach \r
-They fastened, and the mole immense wrought on \r
-Over the foaming deep high-arched, a bridge \r
-Of length prodigious, joining to the wall \r
-Immoveable of this now fenceless world, \r
-Forfeit to Death; from hence a passage broad, \r
-Smooth, easy, inoffensive, down to Hell. \r
-So, if great things to small may be compared, \r
-Xerxes, the liberty of Greece to yoke, \r
-From Susa, his Memnonian palace high, \r
-Came to the sea: and, over Hellespont \r
-Bridging his way, Europe with Asia joined, \r
-And scourged with many a stroke the indignant waves. \r
-Now had they brought the work by wonderous art \r
-Pontifical, a ridge of pendant rock, \r
-Over the vexed abyss, following the track \r
-Of Satan to the self-same place where he \r
-First lighted from his wing, and landed safe \r
-From out of Chaos, to the outside bare \r
-Of this round world: With pins of adamant \r
-And chains they made all fast, too fast they made \r
-And durable! And now in little space \r
-The confines met of empyrean Heaven, \r
-And of this World; and, on the left hand, Hell \r
-With long reach interposed; three several ways \r
-In sight, to each of these three places led. \r
-And now their way to Earth they had descried, \r
-To Paradise first tending; when, behold! \r
-Satan, in likeness of an Angel bright, \r
-Betwixt the Centaur and the Scorpion steering \r
-His zenith, while the sun in Aries rose: \r
-Disguised he came; but those his children dear \r
-Their parent soon discerned, though in disguise. \r
-He, after Eve seduced, unminded slunk \r
-Into the wood fast by; and, changing shape, \r
-To observe the sequel, saw his guileful act \r
-By Eve, though all unweeting, seconded \r
-Upon her husband; saw their shame that sought \r
-Vain covertures; but when he saw descend \r
-The Son of God to judge them, terrified \r
-He fled; not hoping to escape, but shun \r
-The present; fearing, guilty, what his wrath \r
-Might suddenly inflict; that past, returned \r
-By night, and listening where the hapless pair \r
-Sat in their sad discourse, and various plaint, \r
-Thence gathered his own doom; which understood \r
-Not instant, but of future time, with joy \r
-And tidings fraught, to Hell he now returned; \r
-And at the brink of Chaos, near the foot \r
-Of this new wonderous pontifice, unhoped \r
-Met, who to meet him came, his offspring dear. \r
-Great joy was at their meeting, and at sight \r
-Of that stupendious bridge his joy encreased. \r
-Long he admiring stood, till Sin, his fair \r
-Enchanting daughter, thus the silence broke. \r
-O Parent, these are thy magnifick deeds, \r
-Thy trophies! which thou viewest as not thine own; \r
-Thou art their author, and prime architect: \r
-For I no sooner in my heart divined, \r
-My heart, which by a secret harmony \r
-Still moves with thine, joined in connexion sweet, \r
-That thou on earth hadst prospered, which thy looks \r
-Now also evidence, but straight I felt, \r
-Though distant from thee worlds between, yet felt, \r
-That I must after thee, with this thy son; \r
-Such fatal consequence unites us three! \r
-Hell could no longer hold us in our bounds, \r
-Nor this unvoyageable gulf obscure \r
-Detain from following thy illustrious track. \r
-Thou hast achieved our liberty, confined \r
-Within Hell-gates till now; thou us impowered \r
-To fortify thus far, and overlay, \r
-With this portentous bridge, the dark abyss. \r
-Thine now is all this world; thy virtue hath won \r
-What thy hands builded not; thy wisdom gained \r
-With odds what war hath lost, and fully avenged \r
-Our foil in Heaven; here thou shalt monarch reign, \r
-There didst not; there let him still victor sway, \r
-As battle hath adjudged; from this new world \r
-Retiring, by his own doom alienated; \r
-And henceforth monarchy with thee divide \r
-Of all things, parted by the empyreal bounds, \r
-His quadrature, from thy orbicular world; \r
-Or try thee now more dangerous to his throne. \r
-Whom thus the Prince of darkness answered glad. \r
-Fair Daughter, and thou Son and Grandchild both; \r
-High proof ye now have given to be the race \r
-Of Satan (for I glory in the name, \r
-Antagonist of Heaven's Almighty King,) \r
-Amply have merited of me, of all \r
-The infernal empire, that so near Heaven's door \r
-Triumphal with triumphal act have met, \r
-Mine, with this glorious work; and made one realm, \r
-Hell and this world, one realm, one continent \r
-Of easy thorough-fare. Therefore, while I \r
-Descend through darkness, on your road with ease, \r
-To my associate Powers, them to acquaint \r
-With these successes, and with them rejoice; \r
-You two this way, among these numerous orbs, \r
-All yours, right down to Paradise descend; \r
-There dwell, and reign in bliss; thence on the earth \r
-Dominion exercise and in the air, \r
-Chiefly on Man, sole lord of all declared; \r
-Him first make sure your thrall, and lastly kill. \r
-My substitutes I send ye, and create \r
-Plenipotent on earth, of matchless might \r
-Issuing from me: on your joint vigour now \r
-My hold of this new kingdom all depends, \r
-Through Sin to Death exposed by my exploit. \r
-If your joint power prevail, the affairs of Hell \r
-No detriment need fear; go, and be strong! \r
-So saying he dismissed them; they with speed \r
-Their course through thickest constellations held, \r
-Spreading their bane; the blasted stars looked wan, \r
-And planets, planet-struck, real eclipse \r
-Then suffered. The other way Satan went down \r
-The causey to Hell-gate: On either side \r
-Disparted Chaos overbuilt exclaimed, \r
-And with rebounding surge the bars assailed, \r
-That scorned his indignation: Through the gate, \r
-Wide open and unguarded, Satan passed, \r
-And all about found desolate; for those, \r
-Appointed to sit there, had left their charge, \r
-Flown to the upper world; the rest were all \r
-Far to the inland retired, about the walls \r
-Of Pandemonium; city and proud seat \r
-Of Lucifer, so by allusion called \r
-Of that bright star to Satan paragoned; \r
-There kept their watch the legions, while the Grand \r
-In council sat, solicitous what chance \r
-Might intercept their emperour sent; so he \r
-Departing gave command, and they observed. \r
-As when the Tartar from his Russian foe, \r
-By Astracan, over the snowy plains, \r
-Retires; or Bactrin Sophi, from the horns \r
-Of Turkish crescent, leaves all waste beyond \r
-The realm of Aladule, in his retreat \r
-To Tauris or Casbeen: So these, the late \r
-Heaven-banished host, left desart utmost Hell \r
-Many a dark league, reduced in careful watch \r
-Round their metropolis; and now expecting \r
-Each hour their great adventurer, from the search \r
-Of foreign worlds: He through the midst unmarked, \r
-In show plebeian Angel militant \r
-Of lowest order, passed; and from the door \r
-Of that Plutonian hall, invisible \r
-Ascended his high throne; which, under state \r
-Of richest texture spread, at the upper end \r
-Was placed in regal lustre. Down a while \r
-He sat, and round about him saw unseen: \r
-At last, as from a cloud, his fulgent head \r
-And shape star-bright appeared, or brighter; clad \r
-With what permissive glory since his fall \r
-Was left him, or false glitter: All amazed \r
-At that so sudden blaze the Stygian throng \r
-Bent their aspect, and whom they wished beheld, \r
-Their mighty Chief returned: loud was the acclaim: \r
-Forth rushed in haste the great consulting peers, \r
-Raised from their dark Divan, and with like joy \r
-Congratulant approached him; who with hand \r
-Silence, and with these words attention, won. \r
-Thrones, Dominations, Princedoms, Virtues, Powers; \r
-For in possession such, not only of right, \r
-I call ye, and declare ye now; returned \r
-Successful beyond hope, to lead ye forth \r
-Triumphant out of this infernal pit \r
-Abominable, accursed, the house of woe, \r
-And dungeon of our tyrant: Now possess, \r
-As Lords, a spacious world, to our native Heaven \r
-Little inferiour, by my adventure hard \r
-With peril great achieved. Long were to tell \r
-What I have done; what suffered;with what pain \r
-Voyaged th' unreal, vast, unbounded deep \r
-Of horrible confusion; over which \r
-By Sin and Death a broad way now is paved, \r
-To expedite your glorious march; but I \r
-Toiled out my uncouth passage, forced to ride \r
-The untractable abyss, plunged in the womb \r
-Of unoriginal Night and Chaos wild; \r
-That, jealous of their secrets, fiercely opposed \r
-My journey strange, with clamorous uproar \r
-Protesting Fate supreme; thence how I found \r
-The new created world, which fame in Heaven \r
-Long had foretold, a fabrick wonderful \r
-Of absolute perfection! therein Man \r
-Placed in a Paradise, by our exile \r
-Made happy: Him by fraud I have seduced \r
-From his Creator; and, the more to encrease \r
-Your wonder, with an apple; he, thereat \r
-Offended, worth your laughter! hath given up \r
-Both his beloved Man, and all his world, \r
-To Sin and Death a prey, and so to us, \r
-Without our hazard, labour, or alarm; \r
-To range in, and to dwell, and over Man \r
-To rule, as over all he should have ruled. \r
-True is, me also he hath judged, or rather \r
-Me not, but the brute serpent in whose shape \r
-Man I deceived: that which to me belongs, \r
-Is enmity which he will put between \r
-Me and mankind; I am to bruise his heel; \r
-His seed, when is not set, shall bruise my head: \r
-A world who would not purchase with a bruise, \r
-Or much more grievous pain?--Ye have the account \r
-Of my performance: What remains, ye Gods, \r
-But up, and enter now into full bliss? \r
-So having said, a while he stood, expecting \r
-Their universal shout, and high applause, \r
-To fill his ear; when, contrary, he hears \r
-On all sides, from innumerable tongues, \r
-A dismal universal hiss, the sound \r
-Of publick scorn; he wondered, but not long \r
-Had leisure, wondering at himself now more, \r
-His visage drawn he felt to sharp and spare; \r
-His arms clung to his ribs; his legs entwining \r
-Each other, till supplanted down he fell \r
-A monstrous serpent on his belly prone, \r
-Reluctant, but in vain; a greater power \r
-Now ruled him, punished in the shape he sinned, \r
-According to his doom: he would have spoke, \r
-But hiss for hiss returned with forked tongue \r
-To forked tongue; for now were all transformed \r
-Alike, to serpents all, as accessories \r
-To his bold riot: Dreadful was the din \r
-Of hissing through the hall, thick swarming now \r
-With complicated monsters head and tail, \r
-Scorpion, and Asp, and Amphisbaena dire, \r
-Cerastes horned, Hydrus, and Elops drear, \r
-And Dipsas; (not so thick swarmed once the soil \r
-Bedropt with blood of Gorgon, or the isle \r
-Ophiusa,) but still greatest he the midst, \r
-Now Dragon grown, larger than whom the sun \r
-Ingendered in the Pythian vale or slime, \r
-Huge Python, and his power no less he seemed \r
-Above the rest still to retain; they all \r
-Him followed, issuing forth to the open field, \r
-Where all yet left of that revolted rout, \r
-Heaven-fallen, in station stood or just array; \r
-Sublime with expectation when to see \r
-In triumph issuing forth their glorious Chief; \r
-They saw, but other sight instead! a croud \r
-Of ugly serpents; horrour on them fell, \r
-And horrid sympathy; for, what they saw, \r
-They felt themselves, now changing; down their arms, \r
-Down fell both spear and shield; down they as fast; \r
-And the dire hiss renewed, and the dire form \r
-Catched, by contagion; like in punishment, \r
-As in their crime. Thus was the applause they meant, \r
-Turned to exploding hiss, triumph to shame \r
-Cast on themselves from their own mouths. There stood \r
-A grove hard by, sprung up with this their change, \r
-His will who reigns above, to aggravate \r
-Their penance, laden with fair fruit, like that \r
-Which grew in Paradise, the bait of Eve \r
-Used by the Tempter: on that prospect strange \r
-Their earnest eyes they fixed, imagining \r
-For one forbidden tree a multitude \r
-Now risen, to work them further woe or shame; \r
-Yet, parched with scalding thirst and hunger fierce, \r
-Though to delude them sent, could not abstain; \r
-But on they rolled in heaps, and, up the trees \r
-Climbing, sat thicker than the snaky locks \r
-That curled Megaera: greedily they plucked \r
-The fruitage fair to sight, like that which grew \r
-Near that bituminous lake where Sodom flamed; \r
-This more delusive, not the touch, but taste \r
-Deceived; they, fondly thinking to allay \r
-Their appetite with gust, instead of fruit \r
-Chewed bitter ashes, which the offended taste \r
-With spattering noise rejected: oft they assayed, \r
-Hunger and thirst constraining; drugged as oft, \r
-With hatefullest disrelish writhed their jaws, \r
-With soot and cinders filled; so oft they fell \r
-Into the same illusion, not as Man \r
-Whom they triumphed once lapsed. Thus were they plagued \r
-And worn with famine, long and ceaseless hiss, \r
-Till their lost shape, permitted, they resumed; \r
-Yearly enjoined, some say, to undergo, \r
-This annual humbling certain numbered days, \r
-To dash their pride, and joy, for Man seduced. \r
-However, some tradition they dispersed \r
-Among the Heathen, of their purchase got, \r
-And fabled how the Serpent, whom they called \r
-Ophion, with Eurynome, the wide-- \r
-Encroaching Eve perhaps, had first the rule \r
-Of high Olympus; thence by Saturn driven \r
-And Ops, ere yet Dictaean Jove was born. \r
-Mean while in Paradise the hellish pair \r
-Too soon arrived; Sin, there in power before, \r
-Once actual; now in body, and to dwell \r
-Habitual habitant; behind her Death, \r
-Close following pace for pace, not mounted yet \r
-On his pale horse: to whom Sin thus began. \r
-Second of Satan sprung, all-conquering Death! \r
-What thinkest thou of our empire now, though earned \r
-With travel difficult, not better far \r
-Than still at Hell's dark threshold to have sat watch, \r
-Unnamed, undreaded, and thyself half starved? \r
-Whom thus the Sin-born monster answered soon. \r
-To me, who with eternal famine pine, \r
-Alike is Hell, or Paradise, or Heaven; \r
-There best, where most with ravine I may meet; \r
-Which here, though plenteous, all too little seems \r
-To stuff this maw, this vast unhide-bound corps. \r
-To whom the incestuous mother thus replied. \r
-Thou therefore on these herbs, and fruits, and flowers, \r
-Feed first; on each beast next, and fish, and fowl; \r
-No homely morsels! and, whatever thing \r
-The sithe of Time mows down, devour unspared; \r
-Till I, in Man residing, through the race, \r
-His thoughts, his looks, words, actions, all infect; \r
-And season him thy last and sweetest prey. \r
-This said, they both betook them several ways, \r
-Both to destroy, or unimmortal make \r
-All kinds, and for destruction to mature \r
-Sooner or later; which the Almighty seeing, \r
-From his transcendent seat the Saints among, \r
-To those bright Orders uttered thus his voice. \r
-See, with what heat these dogs of Hell advance \r
-To waste and havock yonder world, which I \r
-So fair and good created; and had still \r
-Kept in that state, had not the folly of Man \r
-Let in these wasteful furies, who impute \r
-Folly to me; so doth the Prince of Hell \r
-And his adherents, that with so much ease \r
-I suffer them to enter and possess \r
-A place so heavenly; and, conniving, seem \r
-To gratify my scornful enemies, \r
-That laugh, as if, transported with some fit \r
-Of passion, I to them had quitted all, \r
-At random yielded up to their misrule; \r
-And know not that I called, and drew them thither, \r
-My Hell-hounds, to lick up the draff and filth \r
-Which Man's polluting sin with taint hath shed \r
-On what was pure; til, crammed and gorged, nigh burst \r
-With sucked and glutted offal, at one sling \r
-Of thy victorious arm, well-pleasing Son, \r
-Both Sin, and Death, and yawning Grave, at last, \r
-Through Chaos hurled, obstruct the mouth of Hell \r
-For ever, and seal up his ravenous jaws. \r
-Then Heaven and Earth renewed shall be made pure \r
-To sanctity, that shall receive no stain: \r
-Till then, the curse pronounced on both precedes. \r
-He ended, and the heavenly audience loud \r
-Sung Halleluiah, as the sound of seas, \r
-Through multitude that sung: Just are thy ways, \r
-Righteous are thy decrees on all thy works; \r
-Who can extenuate thee? Next, to the Son, \r
-Destined Restorer of mankind, by whom \r
-New Heaven and Earth shall to the ages rise, \r
-Or down from Heaven descend.--Such was their song; \r
-While the Creator, calling forth by name \r
-His mighty Angels, gave them several charge, \r
-As sorted best with present things. The sun \r
-Had first his precept so to move, so shine, \r
-As might affect the earth with cold and heat \r
-Scarce tolerable; and from the north to call \r
-Decrepit winter; from the south to bring \r
-Solstitial summer's heat. To the blanc moon \r
-Her office they prescribed; to the other five \r
-Their planetary motions, and aspects, \r
-In sextile, square, and trine, and opposite, \r
-Of noxious efficacy, and when to join \r
-In synod unbenign; and taught the fixed \r
-Their influence malignant when to shower, \r
-Which of them rising with the sun, or falling, \r
-Should prove tempestuous: To the winds they set \r
-Their corners, when with bluster to confound \r
-Sea, air, and shore; the thunder when to roll \r
-With terrour through the dark aereal hall. \r
-Some say, he bid his Angels turn ascanse \r
-The poles of earth, twice ten degrees and more, \r
-From the sun's axle; they with labour pushed \r
-Oblique the centrick globe: Some say, the sun \r
-Was bid turn reins from the equinoctial road \r
-Like distant breadth to Taurus with the seven \r
-Atlantick Sisters, and the Spartan Twins, \r
-Up to the Tropick Crab: thence down amain \r
-By Leo, and the Virgin, and the Scales, \r
-As deep as Capricorn; to bring in change \r
-Of seasons to each clime; else had the spring \r
-Perpetual smiled on earth with vernant flowers, \r
-Equal in days and nights, except to those \r
-Beyond the polar circles; to them day \r
-Had unbenighted shone, while the low sun, \r
-To recompense his distance, in their sight \r
-Had rounded still the horizon, and not known \r
-Or east or west; which had forbid the snow \r
-From cold Estotiland, and south as far \r
-Beneath Magellan. At that tasted fruit \r
-The sun, as from Thyestean banquet, turned \r
-His course intended; else, how had the world \r
-Inhabited, though sinless, more than now, \r
-Avoided pinching cold and scorching heat? \r
-These changes in the Heavens, though slow, produced \r
-Like change on sea and land; sideral blast, \r
-Vapour, and mist, and exhalation hot, \r
-Corrupt and pestilent: Now from the north \r
-Of Norumbega, and the Samoed shore, \r
-Bursting their brazen dungeon, armed with ice, \r
-And snow, and hail, and stormy gust and flaw, \r
-Boreas, and Caecias, and Argestes loud, \r
-And Thrascias, rend the woods, and seas upturn; \r
-With adverse blast upturns them from the south \r
-Notus, and Afer black with thunderous clouds \r
-From Serraliona; thwart of these, as fierce, \r
-Forth rush the Levant and the Ponent winds, \r
-Eurus and Zephyr, with their lateral noise, \r
-Sirocco and Libecchio. Thus began \r
-Outrage from lifeless things; but Discord first, \r
-Daughter of Sin, among the irrational \r
-Death introduced, through fierce antipathy: \r
-Beast now with beast 'gan war, and fowl with fowl, \r
-And fish with fish; to graze the herb all leaving, \r
-Devoured each other; nor stood much in awe \r
-Of Man, but fled him; or, with countenance grim, \r
-Glared on him passing. These were from without \r
-The growing miseries, which Adam saw \r
-Already in part, though hid in gloomiest shade, \r
-To sorrow abandoned, but worse felt within; \r
-And, in a troubled sea of passion tost, \r
-Thus to disburden sought with sad complaint. \r
-O miserable of happy! Is this the end \r
-Of this new glorious world, and me so late \r
-The glory of that glory, who now become \r
-Accursed, of blessed? hide me from the face \r
-Of God, whom to behold was then my highth \r
-Of happiness!--Yet well, if here would end \r
-The misery; I deserved it, and would bear \r
-My own deservings; but this will not serve: \r
-All that I eat or drink, or shall beget, \r
-Is propagated curse. O voice, once heard \r
-Delightfully, Encrease and multiply; \r
-Now death to hear! for what can I encrease, \r
-Or multiply, but curses on my head? \r
-Who of all ages to succeed, but, feeling \r
-The evil on him brought by me, will curse \r
-My head? Ill fare our ancestor impure, \r
-For this we may thank Adam! but his thanks \r
-Shall be the execration: so, besides \r
-Mine own that bide upon me, all from me \r
-Shall with a fierce reflux on me rebound; \r
-On me, as on their natural center, light \r
-Heavy, though in their place. O fleeting joys \r
-Of Paradise, dear bought with lasting woes! \r
-Did I request thee, Maker, from my clay \r
-To mould me Man? did I solicit thee \r
-From darkness to promote me, or here place \r
-In this delicious garden? As my will \r
-Concurred not to my being, it were but right \r
-And equal to reduce me to my dust; \r
-Desirous to resign and render back \r
-All I received; unable to perform \r
-Thy terms too hard, by which I was to hold \r
-The good I sought not. To the loss of that, \r
-Sufficient penalty, why hast thou added \r
-The sense of endless woes? Inexplicable \r
-Why am I mocked with death, and lengthened out \r
-To deathless pain? How gladly would I meet \r
-Mortality my sentence, and be earth \r
-Insensible! How glad would lay me down \r
-As in my mother's lap! There I should rest, \r
-And sleep secure; his dreadful voice no more \r
-Would thunder in my ears; no fear of worse \r
-To me, and to my offspring, would torment me \r
-With cruel expectation. Yet one doubt \r
-Pursues me still, lest all I cannot die; \r
-Lest that pure breath of life, the spirit of Man \r
-Which God inspired, cannot together perish \r
-With this corporeal clod; then, in the grave, \r
-Or in some other dismal place, who knows \r
-But I shall die a living death? O thought \r
-Horrid, if true! Yet why? It was but breath \r
-Of life that sinned; what dies but what had life \r
-And sin? The body properly had neither, \r
-All of me then shall die: let this appease \r
-The doubt, since human reach no further knows. \r
-For though the Lord of all be infinite, \r
-Is his wrath also? Be it, Man is not so, \r
-But mortal doomed. How can he exercise \r
-Wrath without end on Man, whom death must end? \r
-Can he make deathless death? That were to make \r
-Strange contradiction, which to God himself \r
-Impossible is held; as argument \r
-Of weakness, not of power. Will he draw out, \r
-For anger's sake, finite to infinite, \r
-In punished Man, to satisfy his rigour, \r
-Satisfied never? That were to extend \r
-His sentence beyond dust and Nature's law; \r
-By which all causes else, according still \r
-To the reception of their matter, act; \r
-Not to the extent of their own sphere. But say \r
-That death be not one stroke, as I supposed, \r
-Bereaving sense, but endless misery \r
-From this day onward; which I feel begun \r
-Both in me, and without me; and so last \r
-To perpetuity;--Ay me!that fear \r
-Comes thundering back with dreadful revolution \r
-On my defenceless head; both Death and I \r
-Am found eternal, and incorporate both; \r
-Nor I on my part single; in me all \r
-Posterity stands cursed: Fair patrimony \r
-That I must leave ye, Sons! O, were I able \r
-To waste it all myself, and leave ye none! \r
-So disinherited, how would you bless \r
-Me, now your curse! Ah, why should all mankind, \r
-For one man's fault, thus guiltless be condemned, \r
-It guiltless? But from me what can proceed, \r
-But all corrupt; both mind and will depraved \r
-Not to do only, but to will the same \r
-With me? How can they then acquitted stand \r
-In sight of God? Him, after all disputes, \r
-Forced I absolve: all my evasions vain, \r
-And reasonings, though through mazes, lead me still \r
-But to my own conviction: first and last \r
-On me, me only, as the source and spring \r
-Of all corruption, all the blame lights due; \r
-So might the wrath! Fond wish!couldst thou support \r
-That burden, heavier than the earth to bear; \r
-Than all the world much heavier, though divided \r
-With that bad Woman? Thus, what thou desirest, \r
-And what thou fearest, alike destroys all hope \r
-Of refuge, and concludes thee miserable \r
-Beyond all past example and future; \r
-To Satan only like both crime and doom. \r
-O Conscience! into what abyss of fears \r
-And horrours hast thou driven me; out of which \r
-I find no way, from deep to deeper plunged! \r
-Thus Adam to himself lamented loud, \r
-Through the still night; not now, as ere Man fell, \r
-Wholesome, and cool, and mild, but with black air \r
-Accompanied; with damps, and dreadful gloom; \r
-Which to his evil conscience represented \r
-All things with double terrour: On the ground \r
-Outstretched he lay, on the cold ground; and oft \r
-Cursed his creation; Death as oft accused \r
-Of tardy execution, since denounced \r
-The day of his offence. Why comes not Death, \r
-Said he, with one thrice-acceptable stroke \r
-To end me? Shall Truth fail to keep her word, \r
-Justice Divine not hasten to be just? \r
-But Death comes not at call; Justice Divine \r
-Mends not her slowest pace for prayers or cries, \r
-O woods, O fountains, hillocks, dales, and bowers! \r
-With other echo late I taught your shades \r
-To answer, and resound far other song.-- \r
-Whom thus afflicted when sad Eve beheld, \r
-Desolate where she sat, approaching nigh, \r
-Soft words to his fierce passion she assayed: \r
-But her with stern regard he thus repelled. \r
-Out of my sight, thou Serpent! That name best \r
-Befits thee with him leagued, thyself as false \r
-And hateful; nothing wants, but that thy shape, \r
-Like his, and colour serpentine, may show \r
-Thy inward fraud; to warn all creatures from thee \r
-Henceforth; lest that too heavenly form, pretended \r
-To hellish falshood, snare them! But for thee \r
-I had persisted happy; had not thy pride \r
-And wandering vanity, when least was safe, \r
-Rejected my forewarning, and disdained \r
-Not to be trusted; longing to be seen, \r
-Though by the Devil himself; him overweening \r
-To over-reach; but, with the serpent meeting, \r
-Fooled and beguiled; by him thou, I by thee \r
-To trust thee from my side; imagined wise, \r
-Constant, mature, proof against all assaults; \r
-And understood not all was but a show, \r
-Rather than solid virtue; all but a rib \r
-Crooked by nature, bent, as now appears, \r
-More to the part sinister, from me drawn; \r
-Well if thrown out, as supernumerary \r
-To my just number found. O! why did God, \r
-Creator wise, that peopled highest Heaven \r
-With Spirits masculine, create at last \r
-This novelty on earth, this fair defect \r
-Of nature, and not fill the world at once \r
-With Men, as Angels, without feminine; \r
-Or find some other way to generate \r
-Mankind? This mischief had not been befallen, \r
-And more that shall befall; innumerable \r
-Disturbances on earth through female snares, \r
-And strait conjunction with this sex: for either \r
-He never shall find out fit mate, but such \r
-As some misfortune brings him, or mistake; \r
-Or whom he wishes most shall seldom gain \r
-Through her perverseness, but shall see her gained \r
-By a far worse; or, if she love, withheld \r
-By parents; or his happiest choice too late \r
-Shall meet, already linked and wedlock-bound \r
-To a fell adversary, his hate or shame: \r
-Which infinite calamity shall cause \r
-To human life, and houshold peace confound. \r
-He added not, and from her turned; but Eve, \r
-Not so repulsed, with tears that ceased not flowing \r
-And tresses all disordered, at his feet \r
-Fell humble; and, embracing them, besought \r
-His peace, and thus proceeded in her plaint. \r
-Forsake me not thus, Adam! witness Heaven \r
-What love sincere, and reverence in my heart \r
-I bear thee, and unweeting have offended, \r
-Unhappily deceived! Thy suppliant \r
-I beg, and clasp thy knees; bereave me not, \r
-Whereon I live, thy gentle looks, thy aid, \r
-Thy counsel, in this uttermost distress, \r
-My only strength and stay: Forlorn of thee, \r
-Whither shall I betake me, where subsist? \r
-While yet we live, scarce one short hour perhaps, \r
-Between us two let there be peace; both joining, \r
-As joined in injuries, one enmity \r
-Against a foe by doom express assigned us, \r
-That cruel Serpent: On me exercise not \r
-Thy hatred for this misery befallen; \r
-On me already lost, me than thyself \r
-More miserable! Both have sinned;but thou \r
-Against God only; I against God and thee; \r
-And to the place of judgement will return, \r
-There with my cries importune Heaven; that all \r
-The sentence, from thy head removed, may light \r
-On me, sole cause to thee of all this woe; \r
-Me, me only, just object of his ire! \r
-She ended weeping; and her lowly plight, \r
-Immoveable, till peace obtained from fault \r
-Acknowledged and deplored, in Adam wrought \r
-Commiseration: Soon his heart relented \r
-Towards her, his life so late, and sole delight, \r
-Now at his feet submissive in distress; \r
-Creature so fair his reconcilement seeking, \r
-His counsel, whom she had displeased, his aid: \r
-As one disarmed, his anger all he lost, \r
-And thus with peaceful words upraised her soon. \r
-Unwary, and too desirous, as before, \r
-So now of what thou knowest not, who desirest \r
-The punishment all on thyself; alas! \r
-Bear thine own first, ill able to sustain \r
-His full wrath, whose thou feelest as yet least part, \r
-And my displeasure bearest so ill. If prayers \r
-Could alter high decrees, I to that place \r
-Would speed before thee, and be louder heard, \r
-That on my head all might be visited; \r
-Thy frailty and infirmer sex forgiven, \r
-To me committed, and by me exposed. \r
-But rise;--let us no more contend, nor blame \r
-Each other, blamed enough elsewhere; but strive \r
-In offices of love, how we may lighten \r
-Each other's burden, in our share of woe; \r
-Since this day's death denounced, if aught I see, \r
-Will prove no sudden, but a slow-paced evil; \r
-A long day's dying, to augment our pain; \r
-And to our seed (O hapless seed!) derived. \r
-To whom thus Eve, recovering heart, replied. \r
-Adam, by sad experiment I know \r
-How little weight my words with thee can find, \r
-Found so erroneous; thence by just event \r
-Found so unfortunate: Nevertheless, \r
-Restored by thee, vile as I am, to place \r
-Of new acceptance, hopeful to regain \r
-Thy love, the sole contentment of my heart \r
-Living or dying, from thee I will not hide \r
-What thoughts in my unquiet breast are risen, \r
-Tending to some relief of our extremes, \r
-Or end; though sharp and sad, yet tolerable, \r
-As in our evils, and of easier choice. \r
-If care of our descent perplex us most, \r
-Which must be born to certain woe, devoured \r
-By Death at last; and miserable it is \r
-To be to others cause of misery, \r
-Our own begotten, and of our loins to bring \r
-Into this cursed world a woeful race, \r
-That after wretched life must be at last \r
-Food for so foul a monster; in thy power \r
-It lies, yet ere conception to prevent \r
-The race unblest, to being yet unbegot. \r
-Childless thou art, childless remain: so Death \r
-Shall be deceived his glut, and with us two \r
-Be forced to satisfy his ravenous maw. \r
-But if thou judge it hard and difficult, \r
-Conversing, looking, loving, to abstain \r
-From love's due rights, nuptial embraces sweet; \r
-And with desire to languish without hope, \r
-Before the present object languishing \r
-With like desire; which would be misery \r
-And torment less than none of what we dread; \r
-Then, both ourselves and seed at once to free \r
-From what we fear for both, let us make short, -- \r
-Let us seek Death; -- or, he not found, supply \r
-With our own hands his office on ourselves: \r
-Why stand we longer shivering under fears, \r
-That show no end but death, and have the power, \r
-Of many ways to die the shortest choosing, \r
-Destruction with destruction to destroy? -- \r
-She ended here, or vehement despair \r
-Broke off the rest: so much of death her thoughts \r
-Had entertained, as dyed her cheeks with pale. \r
-But Adam, with such counsel nothing swayed, \r
-To better hopes his more attentive mind \r
-Labouring had raised; and thus to Eve replied. \r
-Eve, thy contempt of life and pleasure seems \r
-To argue in thee something more sublime \r
-And excellent, than what thy mind contemns; \r
-But self-destruction therefore sought, refutes \r
-That excellence thought in thee; and implies, \r
-Not thy contempt, but anguish and regret \r
-For loss of life and pleasure overloved. \r
-Or if thou covet death, as utmost end \r
-Of misery, so thinking to evade \r
-The penalty pronounced; doubt not but God \r
-Hath wiselier armed his vengeful ire, than so \r
-To be forestalled; much more I fear lest death, \r
-So snatched, will not exempt us from the pain \r
-We are by doom to pay; rather, such acts \r
-Of contumacy will provoke the Highest \r
-To make death in us live: Then let us seek \r
-Some safer resolution, which methinks \r
-I have in view, calling to mind with heed \r
-Part of our sentence, that thy seed shall bruise \r
-The Serpent's head; piteous amends! unless \r
-Be meant, whom I conjecture, our grand foe, \r
-Satan; who, in the serpent, hath contrived \r
-Against us this deceit: To crush his head \r
-Would be revenge indeed! which will be lost \r
-By death brought on ourselves, or childless days \r
-Resolved, as thou proposest; so our foe \r
-Shal 'scape his punishment ordained, and we \r
-Instead shall double ours upon our heads. \r
-No more be mentioned then of violence \r
-Against ourselves; and wilful barrenness, \r
-That cuts us off from hope; and savours only \r
-Rancour and pride, impatience and despite, \r
-Reluctance against God and his just yoke \r
-Laid on our necks. Remember with what mild \r
-And gracious temper he both heard, and judged, \r
-Without wrath or reviling; we expected \r
-Immediate dissolution, which we thought \r
-Was meant by death that day; when lo!to thee \r
-Pains only in child-bearing were foretold, \r
-And bringing forth; soon recompensed with joy, \r
-Fruit of thy womb: On me the curse aslope \r
-Glanced on the ground; with labour I must earn \r
-My bread; what harm? Idleness had been worse; \r
-My labour will sustain me; and, lest cold \r
-Or heat should injure us, his timely care \r
-Hath, unbesought, provided; and his hands \r
-Clothed us unworthy, pitying while he judged; \r
-How much more, if we pray him, will his ear \r
-Be open, and his heart to pity incline, \r
-And teach us further by what means to shun \r
-The inclement seasons, rain, ice, hail, and snow! \r
-Which now the sky, with various face, begins \r
-To show us in this mountain; while the winds \r
-Blow moist and keen, shattering the graceful locks \r
-Of these fair spreading trees; which bids us seek \r
-Some better shroud, some better warmth to cherish \r
-Our limbs benummed, ere this diurnal star \r
-Leave cold the night, how we his gathered beams \r
-Reflected may with matter sere foment; \r
-Or, by collision of two bodies, grind \r
-The air attrite to fire; as late the clouds \r
-Justling, or pushed with winds, rude in their shock, \r
-Tine the slant lightning; whose thwart flame, driven down \r
-Kindles the gummy bark of fir or pine; \r
-And sends a comfortable heat from far, \r
-Which might supply the sun: Such fire to use, \r
-And what may else be remedy or cure \r
-To evils which our own misdeeds have wrought, \r
-He will instruct us praying, and of grace \r
-Beseeching him; so as we need not fear \r
-To pass commodiously this life, sustained \r
-By him with many comforts, till we end \r
-In dust, our final rest and native home. \r
-What better can we do, than, to the place \r
-Repairing where he judged us, prostrate fall \r
-Before him reverent; and there confess \r
-Humbly our faults, and pardon beg; with tears \r
-Watering the ground, and with our sighs the air \r
-Frequenting, sent from hearts contrite, in sign \r
-Of sorrow unfeigned, and humiliation meek \r
- \r
- \r
- \r
-Book XI \r
- \r
- \r
-Undoubtedly he will relent, and turn \r
-From his displeasure; in whose look serene, \r
-When angry most he seemed and most severe, \r
-What else but favour, grace, and mercy, shone? \r
-So spake our father penitent; nor Eve \r
-Felt less remorse: they, forthwith to the place \r
-Repairing where he judged them, prostrate fell \r
-Before him reverent; and both confessed \r
-Humbly their faults, and pardon begged; with tears \r
-Watering the ground, and with their sighs the air \r
-Frequenting, sent from hearts contrite, in sign \r
-Of sorrow unfeigned, and humiliation meek. \r
-Thus they, in lowliest plight, repentant stood \r
-Praying; for from the mercy-seat above \r
-Prevenient grace descending had removed \r
-The stony from their hearts, and made new flesh \r
-Regenerate grow instead; that sighs now breathed \r
-Unutterable; which the Spirit of prayer \r
-Inspired, and winged for Heaven with speedier flight \r
-Than loudest oratory: Yet their port \r
-Not of mean suitors; nor important less \r
-Seemed their petition, than when the ancient pair \r
-In fables old, less ancient yet than these, \r
-Deucalion and chaste Pyrrha, to restore \r
-The race of mankind drowned, before the shrine \r
-Of Themis stood devout. To Heaven their prayers \r
-Flew up, nor missed the way, by envious winds \r
-Blown vagabond or frustrate: in they passed \r
-Dimensionless through heavenly doors; then clad \r
-With incense, where the golden altar fumed, \r
-By their great intercessour, came in sight \r
-Before the Father's throne: them the glad Son \r
-Presenting, thus to intercede began. \r
-See$ Father, what first-fruits on earth are sprung \r
-From thy implanted grace in Man; these sighs \r
-And prayers, which in this golden censer mixed \r
-With incense, I thy priest before thee bring; \r
-Fruits of more pleasing savour, from thy seed \r
-Sown with contrition in his heart, than those \r
-Which, his own hand manuring, all the trees \r
-Of Paradise could have produced, ere fallen \r
-From innocence. Now therefore, bend thine ear \r
-To supplication; hear his sighs, though mute; \r
-Unskilful with what words to pray, let me \r
-Interpret for him; me, his advocate \r
-And propitiation; all his works on me, \r
-Good, or not good, ingraft; my merit those \r
-Shall perfect, and for these my death shall pay. \r
-Accept me; and, in me, from these receive \r
-The smell of peace toward mankind: let him live \r
-Before thee reconciled, at least his days \r
-Numbered, though sad; till death, his doom, (which I \r
-To mitigate thus plead, not to reverse,) \r
-To better life shall yield him: where with me \r
-All my redeemed may dwell in joy and bliss; \r
-Made one with me, as I with thee am one. \r
-To whom the Father, without cloud, serene. \r
-All thy request for Man, accepted Son, \r
-Obtain; all thy request was my decree: \r
-But, longer in that Paradise to dwell, \r
-The law I gave to Nature him forbids: \r
-Those pure immortal elements, that know, \r
-No gross, no unharmonious mixture foul, \r
-Eject him, tainted now; and purge him off, \r
-As a distemper, gross, to air as gross, \r
-And mortal food; as may dispose him best \r
-For dissolution wrought by sin, that first \r
-Distempered all things, and of incorrupt \r
-Corrupted. I, at first, with two fair gifts \r
-Created him endowed; with happiness, \r
-And immortality: that fondly lost, \r
-This other served but to eternize woe; \r
-Till I provided death: so death becomes \r
-His final remedy; and, after life, \r
-Tried in sharp tribulation, and refined \r
-By faith and faithful works, to second life, \r
-Waked in the renovation of the just, \r
-Resigns him up with Heaven and Earth renewed. \r
-But let us call to synod all the Blest, \r
-Through Heaven's wide bounds: from them I will not hide \r
-My judgements; how with mankind I proceed, \r
-As how with peccant Angels late they saw, \r
-And in their state, though firm, stood more confirmed. \r
-He ended, and the Son gave signal high \r
-To the bright minister that watched; he blew \r
-His trumpet, heard in Oreb since perhaps \r
-When God descended, and perhaps once more \r
-To sound at general doom. The angelick blast \r
-Filled all the regions: from their blisful bowers \r
-Of amarantine shade, fountain or spring, \r
-By the waters of life, where'er they sat \r
-In fellowships of joy, the sons of light \r
-Hasted, resorting to the summons high; \r
-And took their seats; till from his throne supreme \r
-The Almighty thus pronounced his sovran will. \r
-O Sons, like one of us Man is become \r
-To know both good and evil, since his taste \r
-Of that defended fruit; but let him boast \r
-His knowledge of good lost, and evil got; \r
-Happier! had it sufficed him to have known \r
-Good by itself, and evil not at all. \r
-He sorrows now, repents, and prays contrite, \r
-My motions in him; longer than they move, \r
-His heart I know, how variable and vain, \r
-Self-left. Lest therefore his now bolder hand \r
-Reach also of the tree of life, and eat, \r
-And live for ever, dream at least to live \r
-For ever, to remove him I decree, \r
-And send him from the garden forth to till \r
-The ground whence he was taken, fitter soil. \r
-Michael, this my behest have thou in charge; \r
-Take to thee from among the Cherubim \r
-Thy choice of flaming warriours, lest the Fiend, \r
-Or in behalf of Man, or to invade \r
-Vacant possession, some new trouble raise: \r
-Haste thee, and from the Paradise of God \r
-Without remorse drive out the sinful pair; \r
-From hallowed ground the unholy; and denounce \r
-To them, and to their progeny, from thence \r
-Perpetual banishment. Yet, lest they faint \r
-At the sad sentence rigorously urged, \r
-(For I behold them softened, and with tears \r
-Bewailing their excess,) all terrour hide. \r
-If patiently thy bidding they obey, \r
-Dismiss them not disconsolate; reveal \r
-To Adam what shall come in future days, \r
-As I shall thee enlighten; intermix \r
-My covenant in the Woman's seed renewed; \r
-So send them forth, though sorrowing, yet in peace: \r
-And on the east side of the garden place, \r
-Where entrance up from Eden easiest climbs, \r
-Cherubick watch; and of a sword the flame \r
-Wide-waving; all approach far off to fright, \r
-And guard all passage to the tree of life: \r
-Lest Paradise a receptacle prove \r
-To Spirits foul, and all my trees their prey; \r
-With whose stolen fruit Man once more to delude. \r
-He ceased; and the arch-angelick Power prepared \r
-For swift descent; with him the cohort bright \r
-Of watchful Cherubim: four faces each \r
-Had, like a double Janus; all their shape \r
-Spangled with eyes more numerous than those \r
-Of Argus, and more wakeful than to drouse, \r
-Charmed with Arcadian pipe, the pastoral reed \r
-Of Hermes, or his opiate rod. Mean while, \r
-To re-salute the world with sacred light, \r
-Leucothea waked; and with fresh dews imbalmed \r
-The earth; when Adam and first matron Eve \r
-Had ended now their orisons, and found \r
-Strength added from above; new hope to spring \r
-Out of despair; joy, but with fear yet linked; \r
-Which thus to Eve his welcome words renewed. \r
-Eve, easily my faith admit, that all \r
-The good which we enjoy from Heaven descends; \r
-But, that from us aught should ascend to Heaven \r
-So prevalent as to concern the mind \r
-Of God high-blest, or to incline his will, \r
-Hard to belief may seem; yet this will prayer \r
-Or one short sigh of human breath, upborne \r
-Even to the seat of God. For since I sought \r
-By prayer the offended Deity to appease; \r
-Kneeled, and before him humbled all my heart; \r
-Methought I saw him placable and mild, \r
-Bending his ear; persuasion in me grew \r
-That I was heard with favour; peace returned \r
-Home to my breast, and to my memory \r
-His promise, that thy seed shall bruise our foe; \r
-Which, then not minded in dismay, yet now \r
-Assures me that the bitterness of death \r
-Is past, and we shall live. Whence hail to thee, \r
-Eve rightly called, mother of all mankind, \r
-Mother of all things living, since by thee \r
-Man is to live; and all things live for Man. \r
-To whom thus Eve with sad demeanour meek. \r
-Ill-worthy I such title should belong \r
-To me transgressour; who, for thee ordained \r
-A help, became thy snare; to me reproach \r
-Rather belongs, distrust, and all dispraise: \r
-But infinite in pardon was my Judge, \r
-That I, who first brought death on all, am graced \r
-The source of life; next favourable thou, \r
-Who highly thus to entitle me vouchsaf'st, \r
-Far other name deserving. But the field \r
-To labour calls us, now with sweat imposed, \r
-Though after sleepless night; for see!the morn, \r
-All unconcerned with our unrest, begins \r
-Her rosy progress smiling: let us forth; \r
-I never from thy side henceforth to stray, \r
-Where'er our day's work lies, though now enjoined \r
-Laborious, till day droop; while here we dwell, \r
-What can be toilsome in these pleasant walks? \r
-Here let us live, though in fallen state, content. \r
-So spake, so wished much humbled Eve; but Fate \r
-Subscribed not: Nature first gave signs, impressed \r
-On bird, beast, air; air suddenly eclipsed, \r
-After short blush of morn; nigh in her sight \r
-The bird of Jove, stooped from his aery tour, \r
-Two birds of gayest plume before him drove; \r
-Down from a hill the beast that reigns in woods, \r
-First hunter then, pursued a gentle brace, \r
-Goodliest of all the forest, hart and hind; \r
-Direct to the eastern gate was bent their flight. \r
-Adam observed, and with his eye the chase \r
-Pursuing, not unmoved, to Eve thus spake. \r
-O Eve, some further change awaits us nigh, \r
-Which Heaven, by these mute signs in Nature, shows \r
-Forerunners of his purpose; or to warn \r
-Us, haply too secure, of our discharge \r
-From penalty, because from death released \r
-Some days: how long, and what till then our life, \r
-Who knows? or more than this, that we are dust, \r
-And thither must return, and be no more? \r
-Why else this double object in our sight \r
-Of flight pursued in the air, and o'er the ground, \r
-One way the self-same hour? why in the east \r
-Darkness ere day's mid-course, and morning-light \r
-More orient in yon western cloud, that draws \r
-O'er the blue firmament a radiant white, \r
-And slow descends with something heavenly fraught? \r
-He erred not; for by this the heavenly bands \r
-Down from a sky of jasper lighted now \r
-In Paradise, and on a hill made halt; \r
-A glorious apparition, had not doubt \r
-And carnal fear that day dimmed Adam's eye. \r
-Not that more glorious, when the Angels met \r
-Jacob in Mahanaim, where he saw \r
-The field pavilioned with his guardians bright; \r
-Nor that, which on the flaming mount appeared \r
-In Dothan, covered with a camp of fire, \r
-Against the Syrian king, who to surprise \r
-One man, assassin-like, had levied war, \r
-War unproclaimed. The princely Hierarch \r
-In their bright stand there left his Powers, to seise \r
-Possession of the garden; he alone, \r
-To find where Adam sheltered, took his way, \r
-Not unperceived of Adam; who to Eve, \r
-While the great visitant approached, thus spake. \r
-Eve$ now expect great tidings, which perhaps \r
-Of us will soon determine, or impose \r
-New laws to be observed; for I descry, \r
-From yonder blazing cloud that veils the hill, \r
-One of the heavenly host; and, by his gait, \r
-None of the meanest; some great Potentate \r
-Or of the Thrones above; such majesty \r
-Invests him coming! yet not terrible, \r
-That I should fear; nor sociably mild, \r
-As Raphael, that I should much confide; \r
-But solemn and sublime; whom not to offend, \r
-With reverence I must meet, and thou retire. \r
-He ended: and the Arch-Angel soon drew nigh, \r
-Not in his shape celestial, but as man \r
-Clad to meet man; over his lucid arms \r
-A military vest of purple flowed, \r
-Livelier than Meliboean, or the grain \r
-Of Sarra, worn by kings and heroes old \r
-In time of truce; Iris had dipt the woof; \r
-His starry helm unbuckled showed him prime \r
-In manhood where youth ended; by his side, \r
-As in a glistering zodiack, hung the sword, \r
-Satan's dire dread; and in his hand the spear. \r
-Adam bowed low; he, kingly, from his state \r
-Inclined not, but his coming thus declared. \r
-Adam, Heaven's high behest no preface needs: \r
-Sufficient that thy prayers are heard; and Death, \r
-Then due by sentence when thou didst transgress, \r
-Defeated of his seisure many days \r
-Given thee of grace; wherein thou mayest repent, \r
-And one bad act with many deeds well done \r
-Mayest cover: Well may then thy Lord, appeased, \r
-Redeem thee quite from Death's rapacious claim; \r
-But longer in this Paradise to dwell \r
-Permits not: to remove thee I am come, \r
-And send thee from the garden forth to till \r
-The ground whence thou wast taken, fitter soil. \r
-He added not; for Adam at the news \r
-Heart-struck with chilling gripe of sorrow stood, \r
-That all his senses bound; Eve, who unseen \r
-Yet all had heard, with audible lament \r
-Discovered soon the place of her retire. \r
-O unexpected stroke, worse than of Death! \r
-Must I thus leave thee$ Paradise? thus leave \r
-Thee, native soil! these happy walks and shades, \r
-Fit haunt of Gods? where I had hope to spend, \r
-Quiet though sad, the respite of that day \r
-That must be mortal to us both. O flowers, \r
-That never will in other climate grow, \r
-My early visitation, and my last \r
- ;t even, which I bred up with tender hand \r
-From the first opening bud, and gave ye names! \r
-Who now shall rear ye to the sun, or rank \r
-Your tribes, and water from the ambrosial fount? \r
-Thee lastly, nuptial bower! by me adorned \r
-With what to sight or smell was sweet! from thee \r
-How shall I part, and whither wander down \r
-Into a lower world; to this obscure \r
-And wild? how shall we breathe in other air \r
-Less pure, accustomed to immortal fruits? \r
-Whom thus the Angel interrupted mild. \r
-Lament not, Eve, but patiently resign \r
-What justly thou hast lost, nor set thy heart, \r
-Thus over-fond, on that which is not thine: \r
-Thy going is not lonely; with thee goes \r
-Thy husband; whom to follow thou art bound; \r
-Where he abides, think there thy native soil. \r
-Adam, by this from the cold sudden damp \r
-Recovering, and his scattered spirits returned, \r
-To Michael thus his humble words addressed. \r
-Celestial, whether among the Thrones, or named \r
-Of them the highest; for such of shape may seem \r
-Prince above princes! gently hast thou told \r
-Thy message, which might else in telling wound, \r
-And in performing end us; what besides \r
-Of sorrow, and dejection, and despair, \r
-Our frailty can sustain, thy tidings bring, \r
-Departure from this happy place, our sweet \r
-Recess, and only consolation left \r
-Familiar to our eyes! all places else \r
-Inhospitable appear, and desolate; \r
-Nor knowing us, nor known: And, if by prayer \r
-Incessant I could hope to change the will \r
-Of Him who all things can, I would not cease \r
-To weary him with my assiduous cries: \r
-But prayer against his absolute decree \r
-No more avails than breath against the wind, \r
-Blown stifling back on him that breathes it forth: \r
-Therefore to his great bidding I submit. \r
-This most afflicts me, that, departing hence, \r
-As from his face I shall be hid, deprived \r
-His blessed countenance: Here I could frequent \r
-With worship place by place where he vouchsafed \r
-Presence Divine; and to my sons relate, \r
-'On this mount he appeared; under this tree \r
-'Stood visible; among these pines his voice \r
-'I heard; here with him at this fountain talked: \r
-So many grateful altars I would rear \r
-Of grassy turf, and pile up every stone \r
-Of lustre from the brook, in memory, \r
-Or monument to ages; and theron \r
-Offer sweet-smelling gums, and fruits, and flowers: \r
-In yonder nether world where shall I seek \r
-His bright appearances, or foot-step trace? \r
-For though I fled him angry, yet recalled \r
-To life prolonged and promised race, I now \r
-Gladly behold though but his utmost skirts \r
-Of glory; and far off his steps adore. \r
-To whom thus Michael with regard benign. \r
-Adam, thou knowest Heaven his, and all the Earth; \r
-Not this rock only; his Omnipresence fills \r
-Land, sea, and air, and every kind that lives, \r
-Fomented by his virtual power and warmed: \r
-All the earth he gave thee to possess and rule, \r
-No despicable gift; surmise not then \r
-His presence to these narrow bounds confined \r
-Of Paradise, or Eden: this had been \r
-Perhaps thy capital seat, from whence had spread \r
-All generations; and had hither come \r
-From all the ends of the earth, to celebrate \r
-And reverence thee, their great progenitor. \r
-But this pre-eminence thou hast lost, brought down \r
-To dwell on even ground now with thy sons: \r
-Yet doubt not but in valley, and in plain, \r
-God is, as here; and will be found alike \r
-Present; and of his presence many a sign \r
-Still following thee, still compassing thee round \r
-With goodness and paternal love, his face \r
-Express, and of his steps the track divine. \r
-Which that thou mayest believe, and be confirmed \r
-Ere thou from hence depart; know, I am sent \r
-To show thee what shall come in future days \r
-To thee, and to thy offspring: good with bad \r
-Expect to hear; supernal grace contending \r
-With sinfulness of men; thereby to learn \r
-True patience, and to temper joy with fear \r
-And pious sorrow; equally inured \r
-By moderation either state to bear, \r
-Prosperous or adverse: so shalt thou lead \r
-Safest thy life, and best prepared endure \r
-Thy mortal passage when it comes.--Ascend \r
-This hill; let Eve (for I have drenched her eyes) \r
-Here sleep below; while thou to foresight wakest; \r
-As once thou sleptst, while she to life was formed. \r
-To whom thus Adam gratefully replied. \r
-Ascend, I follow thee, safe Guide, the path \r
-Thou leadest me; and to the hand of Heaven submit, \r
-However chastening; to the evil turn \r
-My obvious breast; arming to overcome \r
-By suffering, and earn rest from labour won, \r
-If so I may attain. -- So both ascend \r
-In the visions of God. It was a hill, \r
-Of Paradise the highest; from whose top \r
-The hemisphere of earth, in clearest ken, \r
-Stretched out to the amplest reach of prospect lay. \r
-Not higher that hill, nor wider looking round, \r
-Whereon, for different cause, the Tempter set \r
-Our second Adam, in the wilderness; \r
-To show him all Earth's kingdoms, and their glory. \r
-His eye might there command wherever stood \r
-City of old or modern fame, the seat \r
-Of mightiest empire, from the destined walls \r
-Of Cambalu, seat of Cathaian Can, \r
-And Samarchand by Oxus, Temir's throne, \r
-To Paquin of Sinaean kings; and thence \r
-To Agra and Lahor of great Mogul, \r
-Down to the golden Chersonese; or where \r
-The Persian in Ecbatan sat, or since \r
-In Hispahan; or where the Russian Ksar \r
-In Mosco; or the Sultan in Bizance, \r
-Turchestan-born; nor could his eye not ken \r
-The empire of Negus to his utmost port \r
-Ercoco, and the less maritim kings \r
-Mombaza, and Quiloa, and Melind, \r
-And Sofala, thought Ophir, to the realm \r
-Of Congo, and Angola farthest south; \r
-Or thence from Niger flood to Atlas mount \r
-The kingdoms of Almansor, Fez and Sus, \r
-Morocco, and Algiers, and Tremisen; \r
-On Europe thence, and where Rome was to sway \r
-The world: in spirit perhaps he also saw \r
-Rich Mexico, the seat of Montezume, \r
-And Cusco in Peru, the richer seat \r
-Of Atabalipa; and yet unspoiled \r
-Guiana, whose great city Geryon's sons \r
-Call El Dorado. But to nobler sights \r
-Michael from Adam's eyes the film removed, \r
-Which that false fruit that promised clearer sight \r
-Had bred; then purged with euphrasy and rue \r
-The visual nerve, for he had much to see; \r
-And from the well of life three drops instilled. \r
-So deep the power of these ingredients pierced, \r
-Even to the inmost seat of mental sight, \r
-That Adam, now enforced to close his eyes, \r
-Sunk down, and all his spirits became entranced; \r
-But him the gentle Angel by the hand \r
-Soon raised, and his attention thus recalled. \r
-Adam, now ope thine eyes; and first behold \r
-The effects, which thy original crime hath wrought \r
-In some to spring from thee; who never touched \r
-The excepted tree; nor with the snake conspired; \r
-Nor sinned thy sin; yet from that sin derive \r
-Corruption, to bring forth more violent deeds. \r
-His eyes he opened, and beheld a field, \r
-Part arable and tilth, whereon were sheaves \r
-New reaped; the other part sheep-walks and folds; \r
-I' the midst an altar as the land-mark stood, \r
-Rustick, of grassy sord; thither anon \r
-A sweaty reaper from his tillage brought \r
-First fruits, the green ear, and the yellow sheaf, \r
-Unculled, as came to hand; a shepherd next, \r
-More meek, came with the firstlings of his flock, \r
-Choicest and best; then, sacrificing, laid \r
-The inwards and their fat, with incense strowed, \r
-On the cleft wood, and all due rights performed: \r
-His offering soon propitious fire from Heaven \r
-Consumed with nimble glance, and grateful steam; \r
-The other's not, for his was not sincere; \r
-Whereat he inly raged, and, as they talked, \r
-Smote him into the midriff with a stone \r
-That beat out life; he fell;and, deadly pale, \r
-Groaned out his soul with gushing blood effused. \r
-Much at that sight was Adam in his heart \r
-Dismayed, and thus in haste to the Angel cried. \r
-O Teacher, some great mischief hath befallen \r
-To that meek man, who well had sacrificed; \r
-Is piety thus and pure devotion paid? \r
-To whom Michael thus, he also moved, replied. \r
-These two are brethren, Adam, and to come \r
-Out of thy loins; the unjust the just hath slain, \r
-For envy that his brother's offering found \r
-From Heaven acceptance; but the bloody fact \r
-Will be avenged; and the other's faith, approved, \r
-Lose no reward; though here thou see him die, \r
-Rolling in dust and gore. To which our sire. \r
-Alas! both for the deed, and for the cause! \r
-But have I now seen Death? Is this the way \r
-I must return to native dust? O sight \r
-Of terrour, foul and ugly to behold, \r
-Horrid to think, how horrible to feel! \r
-To whom thus Michael. Death thou hast seen \r
-In his first shape on Man; but many shapes \r
-Of Death, and many are the ways that lead \r
-To his grim cave, all dismal; yet to sense \r
-More terrible at the entrance, than within. \r
-Some, as thou sawest, by violent stroke shall die; \r
-By fire, flood, famine, by intemperance more \r
-In meats and drinks, which on the earth shall bring \r
-Diseases dire, of which a monstrous crew \r
-Before thee shall appear; that thou mayest know \r
-What misery the inabstinence of Eve \r
-Shall bring on Men. Immediately a place \r
-Before his eyes appeared, sad, noisome, dark; \r
-A lazar-house it seemed; wherein were laid \r
-Numbers of all diseased; all maladies \r
-Of ghastly spasm, or racking torture, qualms \r
-Of heart-sick agony, all feverous kinds, \r
-Convulsions, epilepsies, fierce catarrhs, \r
-Intestine stone and ulcer, colick-pangs, \r
-Demoniack phrenzy, moaping melancholy, \r
-And moon-struck madness, pining atrophy, \r
-Marasmus, and wide-wasting pestilence, \r
-Dropsies, and asthmas, and joint-racking rheums. \r
-Dire was the tossing, deep the groans; Despair \r
-Tended the sick busiest from couch to couch; \r
-And over them triumphant Death his dart \r
-Shook, but delayed to strike, though oft invoked \r
-With vows, as their chief good, and final hope. \r
-Sight so deform what heart of rock could long \r
-Dry-eyed behold? Adam could not, but wept, \r
-Though not of woman born; compassion quelled \r
-His best of man, and gave him up to tears \r
-A space, till firmer thoughts restrained excess; \r
-And, scarce recovering words, his plaint renewed. \r
-O miserable mankind, to what fall \r
-Degraded, to what wretched state reserved! \r
-Better end here unborn. Why is life given \r
-To be thus wrested from us? rather, why \r
-Obtruded on us thus? who, if we knew \r
-What we receive, would either no accept \r
-Life offered, or soon beg to lay it down; \r
-Glad to be so dismissed in peace. Can thus \r
-The image of God in Man, created once \r
-So goodly and erect, though faulty since, \r
-To such unsightly sufferings be debased \r
-Under inhuman pains? Why should not Man, \r
-Retaining still divine similitude \r
-In part, from such deformities be free, \r
-And, for his Maker's image sake, exempt? \r
-Their Maker's image, answered Michael, then \r
-Forsook them, when themselves they vilified \r
-To serve ungoverned Appetite; and took \r
-His image whom they served, a brutish vice, \r
-Inductive mainly to the sin of Eve. \r
-Therefore so abject is their punishment, \r
-Disfiguring not God's likeness, but their own; \r
-Or if his likeness, by themselves defaced; \r
-While they pervert pure Nature's healthful rules \r
-To loathsome sickness; worthily, since they \r
-God's image did not reverence in themselves. \r
-I yield it just, said Adam, and submit. \r
-But is there yet no other way, besides \r
-These painful passages, how we may come \r
-To death, and mix with our connatural dust? \r
-There is, said Michael, if thou well observe \r
-The rule of Not too much; by temperance taught, \r
-In what thou eatest and drinkest; seeking from thence \r
-Due nourishment, not gluttonous delight, \r
-Till many years over thy head return: \r
-So mayest thou live; till, like ripe fruit, thou drop \r
-Into thy mother's lap; or be with ease \r
-Gathered, nor harshly plucked; for death mature: \r
-This is Old Age; but then, thou must outlive \r
-Thy youth, thy strength, thy beauty; which will change \r
-To withered, weak, and gray; thy senses then, \r
-Obtuse, all taste of pleasure must forego, \r
-To what thou hast; and, for the air of youth, \r
-Hopeful and cheerful, in thy blood will reign \r
-A melancholy damp of cold and dry \r
-To weigh thy spirits down, and last consume \r
-The balm of life. To whom our ancestor. \r
-Henceforth I fly not death, nor would prolong \r
-Life much; bent rather, how I may be quit, \r
-Fairest and easiest, of this cumbrous charge; \r
-Which I must keep till my appointed day \r
-Of rendering up, and patiently attend \r
-My dissolution. Michael replied. \r
-Nor love thy life, nor hate; but what thou livest \r
-Live well; how long, or short, permit to Heaven: \r
-And now prepare thee for another sight. \r
-He looked, and saw a spacious plain, whereon \r
-Were tents of various hue; by some, were herds \r
-Of cattle grazing; others, whence the sound \r
-Of instruments, that made melodious chime, \r
-Was heard, of harp and organ; and, who moved \r
-Their stops and chords, was seen; his volant touch, \r
-Instinct through all proportions, low and high, \r
-Fled and pursued transverse the resonant fugue. \r
-In other part stood one who, at the forge \r
-Labouring, two massy clods of iron and brass \r
-Had melted, (whether found where casual fire \r
-Had wasted woods on mountain or in vale, \r
-Down to the veins of earth; thence gliding hot \r
-To some cave's mouth; or whether washed by stream \r
-From underground;) the liquid ore he drained \r
-Into fit moulds prepared; from which he formed \r
-First his own tools; then, what might else be wrought \r
-Fusil or graven in metal. After these, \r
-But on the hither side, a different sort \r
-From the high neighbouring hills, which was their seat, \r
-Down to the plain descended; by their guise \r
-Just men they seemed, and all their study bent \r
-To worship God aright, and know his works \r
-Not hid; nor those things last, which might preserve \r
-Freedom and peace to Men; they on the plain \r
-Long had not walked, when from the tents, behold! \r
-A bevy of fair women, richly gay \r
-In gems and wanton dress; to the harp they sung \r
-Soft amorous ditties, and in dance came on: \r
-The men, though grave, eyed them; and let their eyes \r
-Rove without rein; till, in the amorous net \r
-Fast caught, they liked; and each his liking chose; \r
-And now of love they treat, till the evening-star, \r
-Love's harbinger, appeared; then, all in heat \r
-They light the nuptial torch, and bid invoke \r
-Hymen, then first to marriage rites invoked: \r
-With feast and musick all the tents resound. \r
-Such happy interview, and fair event \r
-Of love and youth not lost, songs, garlands, flowers, \r
-And charming symphonies, attached the heart \r
-Of Adam, soon inclined to admit delight, \r
-The bent of nature; which he thus expressed. \r
-True opener of mine eyes, prime Angel blest; \r
-Much better seems this vision, and more hope \r
-Of peaceful days portends, than those two past; \r
-Those were of hate and death, or pain much worse; \r
-Here Nature seems fulfilled in all her ends. \r
-To whom thus Michael. Judge not what is best \r
-By pleasure, though to nature seeming meet; \r
-Created, as thou art, to nobler end \r
-Holy and pure, conformity divine. \r
-Those tents thou sawest so pleasant, were the tents \r
-Of wickedness, wherein shall dwell his race \r
-Who slew his brother; studious they appear \r
-Of arts that polish life, inventers rare; \r
-Unmindful of their Maker, though his Spirit \r
-Taught them; but they his gifts acknowledged none. \r
-Yet they a beauteous offspring shall beget; \r
-For that fair female troop thou sawest, that seemed \r
-Of Goddesses, so blithe, so smooth, so gay, \r
-Yet empty of all good wherein consists \r
-Woman's domestick honour and chief praise; \r
-Bred only and completed to the taste \r
-Of lustful appetence, to sing, to dance, \r
-To dress, and troll the tongue, and roll the eye: \r
-To these that sober race of men, whose lives \r
-Religious titled them the sons of God, \r
-Shall yield up all their virtue, all their fame \r
-Ignobly, to the trains and to the smiles \r
-Of these fair atheists; and now swim in joy, \r
-Erelong to swim at large; and laugh, for which \r
-The world erelong a world of tears must weep. \r
-To whom thus Adam, of short joy bereft. \r
-O pity and shame, that they, who to live well \r
-Entered so fair, should turn aside to tread \r
-Paths indirect, or in the mid way faint! \r
-But still I see the tenour of Man's woe \r
-Holds on the same, from Woman to begin. \r
-From Man's effeminate slackness it begins, \r
-Said the Angel, who should better hold his place \r
-By wisdom, and superiour gifts received. \r
-But now prepare thee for another scene. \r
-He looked, and saw wide territory spread \r
-Before him, towns, and rural works between; \r
-Cities of men with lofty gates and towers, \r
-Concourse in arms, fierce faces threatening war, \r
-Giants of mighty bone and bold emprise; \r
-Part wield their arms, part curb the foaming steed, \r
-Single or in array of battle ranged \r
-Both horse and foot, nor idly mustering stood; \r
-One way a band select from forage drives \r
-A herd of beeves, fair oxen and fair kine, \r
-From a fat meadow ground; or fleecy flock, \r
-Ewes and their bleating lambs over the plain, \r
-Their booty; scarce with life the shepherds fly, \r
-But call in aid, which makes a bloody fray; \r
-With cruel tournament the squadrons join; \r
-Where cattle pastured late, now scattered lies \r
-With carcasses and arms the ensanguined field, \r
-Deserted: Others to a city strong \r
-Lay siege, encamped; by battery, scale, and mine, \r
-Assaulting; others from the wall defend \r
-With dart and javelin, stones, and sulphurous fire; \r
-On each hand slaughter, and gigantick deeds. \r
-In other part the sceptered heralds call \r
-To council, in the city-gates; anon \r
-Gray-headed men and grave, with warriours mixed, \r
-Assemble, and harangues are heard; but soon, \r
-In factious opposition; till at last, \r
-Of middle age one rising, eminent \r
-In wise deport, spake much of right and wrong, \r
-Of justice, or religion, truth, and peace, \r
-And judgement from above: him old and young \r
-Exploded, and had seized with violent hands, \r
-Had not a cloud descending snatched him thence \r
-Unseen amid the throng: so violence \r
-Proceeded, and oppression, and sword-law, \r
-Through all the plain, and refuge none was found. \r
-Adam was all in tears, and to his guide \r
-Lamenting turned full sad; O!what are these, \r
-Death's ministers, not men? who thus deal death \r
-Inhumanly to men, and multiply \r
-Ten thousandfold the sin of him who slew \r
-His brother: for of whom such massacre \r
-Make they, but of their brethren; men of men \r
-But who was that just man, whom had not Heaven \r
-Rescued, had in his righteousness been lost? \r
-To whom thus Michael. These are the product \r
-Of those ill-mated marriages thou sawest; \r
-Where good with bad were matched, who of themselves \r
-Abhor to join; and, by imprudence mixed, \r
-Produce prodigious births of body or mind. \r
-Such were these giants, men of high renown; \r
-For in those days might only shall be admired, \r
-And valour and heroick virtue called; \r
-To overcome in battle, and subdue \r
-Nations, and bring home spoils with infinite \r
-Man-slaughter, shall be held the highest pitch \r
-Of human glory; and for glory done \r
-Of triumph, to be styled great conquerours \r
-Patrons of mankind, Gods, and sons of Gods; \r
-Destroyers rightlier called, and plagues of men. \r
-Thus fame shall be achieved, renown on earth; \r
-And what most merits fame, in silence hid. \r
-But he, the seventh from thee, whom thou beheldst \r
-The only righteous in a world preverse, \r
-And therefore hated, therefore so beset \r
-With foes, for daring single to be just, \r
-And utter odious truth, that God would come \r
-To judge them with his Saints; him the Most High \r
-Rapt in a balmy cloud with winged steeds \r
-Did, as thou sawest, receive, to walk with God \r
-High in salvation and the climes of bliss, \r
-Exempt from death; to show thee what reward \r
-Awaits the good; the rest what punishment; \r
-Which now direct thine eyes and soon behold. \r
-He looked, and saw the face of things quite changed; \r
-The brazen throat of war had ceased to roar; \r
-All now was turned to jollity and game, \r
-To luxury and riot, feast and dance; \r
-Marrying or prostituting, as befel, \r
-Rape or adultery, where passing fair \r
-Allured them; thence from cups to civil broils. \r
-At length a reverend sire among them came, \r
-And of their doings great dislike declared, \r
-And testified against their ways; he oft \r
-Frequented their assemblies, whereso met, \r
-Triumphs or festivals; and to them preached \r
-Conversion and repentance, as to souls \r
-In prison, under judgements imminent: \r
-But all in vain: which when he saw, he ceased \r
-Contending, and removed his tents far off; \r
-Then, from the mountain hewing timber tall, \r
-Began to build a vessel of huge bulk; \r
-Measured by cubit, length, and breadth, and highth; \r
-Smeared round with pitch; and in the side a door \r
-Contrived; and of provisions laid in large, \r
-For man and beast: when lo, a wonder strange! \r
-Of every beast, and bird, and insect small, \r
-Came sevens, and pairs; and entered in as taught \r
-Their order: last the sire and his three sons, \r
-With their four wives; and God made fast the door. \r
-Mean while the south-wind rose, and, with black wings \r
-Wide-hovering, all the clouds together drove \r
-From under Heaven; the hills to their supply \r
-Vapour, and exhalation dusk and moist, \r
-Sent up amain; and now the thickened sky \r
-Like a dark cieling stood; down rushed the rain \r
-Impetuous; and continued, till the earth \r
-No more was seen: the floating vessel swum \r
-Uplifted, and secure with beaked prow \r
-Rode tilting o'er the waves; all dwellings else \r
-Flood overwhelmed, and them with all their pomp \r
-Deep under water rolled; sea covered sea, \r
-Sea without shore; and in their palaces, \r
-Where luxury late reigned, sea-monsters whelped \r
-And stabled; of mankind, so numerous late, \r
-All left, in one small bottom swum imbarked. \r
-How didst thou grieve then, Adam, to behold \r
-The end of all thy offspring, end so sad, \r
-Depopulation! Thee another flood, \r
-Of tears and sorrow a flood, thee also drowned, \r
-And sunk thee as thy sons; till, gently reared \r
-By the Angel, on thy feet thou stoodest at last, \r
-Though comfortless; as when a father mourns \r
-His children, all in view destroyed at once; \r
-And scarce to the Angel utter'dst thus thy plaint. \r
-O visions ill foreseen! Better had I \r
-Lived ignorant of future! so had borne \r
-My part of evil only, each day's lot \r
-Enough to bear; those now, that were dispensed \r
-The burden of many ages, on me light \r
-At once, by my foreknowledge gaining birth \r
-Abortive, to torment me ere their being, \r
-With thought that they must be. Let no man seek \r
-Henceforth to be foretold, what shall befall \r
-Him or his children; evil he may be sure, \r
-Which neither his foreknowing can prevent; \r
-And he the future evil shall no less \r
-In apprehension than in substance feel, \r
-Grievous to bear: but that care now is past, \r
-Man is not whom to warn: those few escaped \r
-Famine and anguish will at last consume, \r
-Wandering that watery desart: I had hope, \r
-When violence was ceased, and war on earth, \r
-All would have then gone well; peace would have crowned \r
-With length of happy days the race of Man; \r
-But I was far deceived; for now I see \r
-Peace to corrupt no less than war to waste. \r
-How comes it thus? unfold, celestial Guide, \r
-And whether here the race of Man will end. \r
-To whom thus Michael. Those, whom last thou sawest \r
-In triumph and luxurious wealth, are they \r
-First seen in acts of prowess eminent \r
-And great exploits, but of true virtue void; \r
-Who, having spilt much blood, and done much wast \r
-Subduing nations, and achieved thereby \r
-Fame in the world, high titles, and rich prey; \r
-Shall change their course to pleasure, ease, and sloth, \r
-Surfeit, and lust; till wantonness and pride \r
-Raise out of friendship hostile deeds in peace. \r
-The conquered also, and enslaved by war, \r
-Shall, with their freedom lost, all virtue lose \r
-And fear of God; from whom their piety feigned \r
-In sharp contest of battle found no aid \r
-Against invaders; therefore, cooled in zeal, \r
-Thenceforth shall practice how to live secure, \r
-Worldly or dissolute, on what their lords \r
-Shall leave them to enjoy; for the earth shall bear \r
-More than enough, that temperance may be tried: \r
-So all shall turn degenerate, all depraved; \r
-Justice and temperance, truth and faith, forgot; \r
-One man except, the only son of light \r
-In a dark age, against example good, \r
-Against allurement, custom, and a world \r
-Offended: fearless of reproach and scorn, \r
-The grand-child, with twelve sons encreased, departs \r
-From Canaan, to a land hereafter called \r
-Egypt, divided by the river Nile; \r
-See where it flows, disgorging at seven mouths \r
-Into the sea: To sojourn in that land \r
-He comes, invited by a younger son \r
-In time of dearth; a son, whose worthy deeds \r
-Raise him to be the second in that realm \r
-Of Pharaoh: There he dies, and leaves his race \r
-Growing into a nation, and now grown \r
-Suspected to a sequent king, who seeks \r
-To stop their overgrowth, as inmate guests \r
-Or violence, he of their wicked ways \r
-Shall them admonish; and before them set \r
-The paths of righteousness, how much more safe \r
-And full of peace; denouncing wrath to come \r
-On their impenitence; and shall return \r
-Of them derided, but of God observed \r
-The one just man alive; by his command \r
-Shall build a wonderous ark, as thou beheldst, \r
-To save himself, and houshold, from amidst \r
-A world devote to universal wrack. \r
-No sooner he, with them of man and beast \r
-Select for life, shall in the ark be lodged, \r
-And sheltered round; but all the cataracts \r
-Of Heaven set open on the Earth shall pour \r
-Rain, day and night; all fountains of the deep, \r
-Broke up, shall heave the ocean to usurp \r
-Beyond all bounds; till inundation rise \r
-Above the highest hills: Then shall this mount \r
-Of Paradise by might of waves be moved \r
-Out of his place, pushed by the horned flood, \r
-With all his verdure spoiled, and trees adrift, \r
-Down the great river to the opening gulf, \r
-And there take root an island salt and bare, \r
-The haunt of seals, and orcs, and sea-mews' clang: \r
-To teach thee that God attributes to place \r
-No sanctity, if none be thither brought \r
-By men who there frequent, or therein dwell. \r
-And now, what further shall ensue, behold. \r
-He looked, and saw the ark hull on the flood, \r
-Which now abated; for the clouds were fled, \r
-Driven by a keen north-wind, that, blowing dry, \r
-Wrinkled the face of deluge, as decayed; \r
-And the clear sun on his wide watery glass \r
-Gazed hot, and of the fresh wave largely drew, \r
-As after thirst; which made their flowing shrink \r
-From standing lake to tripping ebb, that stole \r
-With soft foot towards the deep; who now had stopt \r
-His sluces, as the Heaven his windows shut. \r
-The ark no more now floats, but seems on ground, \r
-Fast on the top of some high mountain fixed. \r
-And now the tops of hills, as rocks, appear; \r
-With clamour thence the rapid currents drive, \r
-Towards the retreating sea, their furious tide. \r
-Forthwith from out the ark a raven flies, \r
-And after him, the surer messenger, \r
-A dove sent forth once and again to spy \r
-Green tree or ground, whereon his foot may light: \r
-The second time returning, in his bill \r
-An olive-leaf he brings, pacifick sign: \r
-Anon dry ground appears, and from his ark \r
-The ancient sire descends, with all his train; \r
-Then with uplifted hands, and eyes devout, \r
-Grateful to Heaven, over his head beholds \r
-A dewy cloud, and in the cloud a bow \r
-Conspicuous with three lifted colours gay, \r
-Betokening peace from God, and covenant new. \r
-Whereat the heart of Adam, erst so sad, \r
-Greatly rejoiced; and thus his joy broke forth. \r
-O thou, who future things canst represent \r
-As present, heavenly Instructer! I revive \r
-At this last sight; assured that Man shall live, \r
-With all the creatures, and their seed preserve. \r
-Far less I now lament for one whole world \r
-Of wicked sons destroyed, than I rejoice \r
-For one man found so perfect, and so just, \r
-That God vouchsafes to raise another world \r
-From him, and all his anger to forget. \r
-But say, what mean those coloured streaks in Heaven \r
-Distended, as the brow of God appeased? \r
-Or serve they, as a flowery verge, to bind \r
-The fluid skirts of that same watery cloud, \r
-Lest it again dissolve, and shower the earth? \r
-To whom the Arch-Angel. Dextrously thou aimest; \r
-So willingly doth God remit his ire, \r
-Though late repenting him of Man depraved; \r
-Grieved at his heart, when looking down he saw \r
-The whole earth filled with violence, and all flesh \r
-Corrupting each their way; yet, those removed, \r
-Such grace shall one just man find in his sight, \r
-That he relents, not to blot out mankind; \r
-And makes a covenant never to destroy \r
-The earth again by flood; nor let the sea \r
-Surpass his bounds; nor rain to drown the world, \r
-With man therein or beast; but, when he brings \r
-Over the earth a cloud, will therein set \r
-His triple-coloured bow, whereon to look, \r
-And call to mind his covenant: Day and night, \r
-Seed-time and harvest, heat and hoary frost, \r
-Shall hold their course; till fire purge all things new, \r
-Both Heaven and Earth, wherein the just shall dwell. \r
- \r
- \r
- \r
-Book XII \r
- \r
- \r
-As one who in his journey bates at noon, \r
-Though bent on speed; so here the Arch-Angel paused \r
-Betwixt the world destroyed and world restored, \r
-If Adam aught perhaps might interpose; \r
-Then, with transition sweet, new speech resumes. \r
-Thus thou hast seen one world begin, and end; \r
-And Man, as from a second stock, proceed. \r
-Much thou hast yet to see; but I perceive \r
-Thy mortal sight to fail; objects divine \r
-Must needs impair and weary human sense: \r
-Henceforth what is to come I will relate; \r
-Thou therefore give due audience, and attend. \r
-This second source of Men, while yet but few, \r
-And while the dread of judgement past remains \r
-Fresh in their minds, fearing the Deity, \r
-With some regard to what is just and right \r
-Shall lead their lives, and multiply apace; \r
-Labouring the soil, and reaping plenteous crop, \r
-Corn, wine, and oil; and, from the herd or flock, \r
-Oft sacrificing bullock, lamb, or kid, \r
-With large wine-offerings poured, and sacred feast, \r
-Shall spend their days in joy unblamed; and dwell \r
-Long time in peace, by families and tribes, \r
-Under paternal rule: till one shall rise \r
-Of proud ambitious heart; who, not content \r
-With fair equality, fraternal state, \r
-Will arrogate dominion undeserved \r
-Over his brethren, and quite dispossess \r
-Concord and law of nature from the earth; \r
-Hunting (and men not beasts shall be his game) \r
-With war, and hostile snare, such as refuse \r
-Subjection to his empire tyrannous: \r
-A mighty hunter thence he shall be styled \r
-Before the Lord; as in despite of Heaven, \r
-Or from Heaven, claiming second sovranty; \r
-And from rebellion shall derive his name, \r
-Though of rebellion others he accuse. \r
-He with a crew, whom like ambition joins \r
-With him or under him to tyrannize, \r
-Marching from Eden towards the west, shall find \r
-The plain, wherein a black bituminous gurge \r
-Boils out from under ground, the mouth of Hell: \r
-Of brick, and of that stuff, they cast to build \r
-A city and tower, whose top may reach to Heaven; \r
-And get themselves a name; lest, far dispersed \r
-In foreign lands, their memory be lost; \r
-Regardless whether good or evil fame. \r
-But God, who oft descends to visit men \r
-Unseen, and through their habitations walks \r
-To mark their doings, them beholding soon, \r
-Comes down to see their city, ere the tower \r
-Obstruct Heaven-towers, and in derision sets \r
-Upon their tongues a various spirit, to rase \r
-Quite out their native language; and, instead, \r
-To sow a jangling noise of words unknown: \r
-Forthwith a hideous gabble rises loud, \r
-Among the builders; each to other calls \r
-Not understood; till hoarse, and all in rage, \r
-As mocked they storm: great laughter was in Heaven, \r
-And looking down, to see the hubbub strange, \r
-And hear the din: Thus was the building left \r
-Ridiculous, and the work Confusion named. \r
-Whereto thus Adam, fatherly displeased. \r
-O execrable son! so to aspire \r
-Above his brethren; to himself assuming \r
-Authority usurped, from God not given: \r
-He gave us only over beast, fish, fowl, \r
-Dominion absolute; that right we hold \r
-By his donation; but man over men \r
-He made not lord; such title to himself \r
-Reserving, human left from human free. \r
-But this usurper his encroachment proud \r
-Stays not on Man; to God his tower intends \r
-Siege and defiance: Wretched man!what food \r
-Will he convey up thither, to sustain \r
-Himself and his rash army; where thin air \r
-Above the clouds will pine his entrails gross, \r
-And famish him of breath, if not of bread? \r
-To whom thus Michael. Justly thou abhorrest \r
-That son, who on the quiet state of men \r
-Such trouble brought, affecting to subdue \r
-Rational liberty; yet know withal, \r
-Since thy original lapse, true liberty \r
-Is lost, which always with right reason dwells \r
-Twinned, and from her hath no dividual being: \r
-Reason in man obscured, or not obeyed, \r
-Immediately inordinate desires, \r
-And upstart passions, catch the government \r
-From reason; and to servitude reduce \r
-Man, till then free. Therefore, since he permits \r
-Within himself unworthy powers to reign \r
-Over free reason, God, in judgement just, \r
-Subjects him from without to violent lords; \r
-Who oft as undeservedly enthrall \r
-His outward freedom: Tyranny must be; \r
-Though to the tyrant thereby no excuse. \r
-Yet sometimes nations will decline so low \r
-From virtue, which is reason, that no wrong, \r
-But justice, and some fatal curse annexed, \r
-Deprives them of their outward liberty; \r
-Their inward lost: Witness the irreverent son \r
-Of him who built the ark; who, for the shame \r
-Done to his father, heard this heavy curse, \r
-Servant of servants, on his vicious race. \r
-Thus will this latter, as the former world, \r
-Still tend from bad to worse; till God at last, \r
-Wearied with their iniquities, withdraw \r
-His presence from among them, and avert \r
-His holy eyes; resolving from thenceforth \r
-To leave them to their own polluted ways; \r
-And one peculiar nation to select \r
-From all the rest, of whom to be invoked, \r
-A nation from one faithful man to spring: \r
-Him on this side Euphrates yet residing, \r
-Bred up in idol-worship: O, that men \r
-(Canst thou believe?) should be so stupid grown, \r
-While yet the patriarch lived, who 'scaped the flood, \r
-As to forsake the living God, and fall \r
-To worship their own work in wood and stone \r
-For Gods! Yet him God the Most High vouchsafes \r
-To call by vision, from his father's house, \r
-His kindred, and false Gods, into a land \r
-Which he will show him; and from him will raise \r
-A mighty nation; and upon him shower \r
-His benediction so, that in his seed \r
-All nations shall be blest: he straight obeys; \r
-Not knowing to what land, yet firm believes: \r
-I see him, but thou canst not, with what faith \r
-He leaves his Gods, his friends, and native soil, \r
-Ur of Chaldaea, passing now the ford \r
-To Haran; after him a cumbrous train \r
-Of herds and flocks, and numerous servitude; \r
-Not wandering poor, but trusting all his wealth \r
-With God, who called him, in a land unknown. \r
-Canaan he now attains; I see his tents \r
-Pitched about Sechem, and the neighbouring plain \r
-Of Moreh; there by promise he receives \r
-Gift to his progeny of all that land, \r
-From Hameth northward to the Desart south; \r
-(Things by their names I call, though yet unnamed;) \r
-From Hermon east to the great western Sea; \r
-Mount Hermon, yonder sea; each place behold \r
-In prospect, as I point them; on the shore \r
-Mount Carmel; here, the double-founted stream, \r
-Jordan, true limit eastward; but his sons \r
-Shall dwell to Senir, that long ridge of hills. \r
-This ponder, that all nations of the earth \r
-Shall in his seed be blessed: By that seed \r
-Is meant thy great Deliverer, who shall bruise \r
-The Serpent's head; whereof to thee anon \r
-Plainlier shall be revealed. This patriarch blest, \r
-Whom faithful Abraham due time shall call, \r
-A son, and of his son a grand-child, leaves; \r
-Like him in faith, in wisdom, and renown: \r
-The grandchild, with twelve sons increased, departs \r
-From Canaan to a land hereafter called \r
-Egypt, divided by the river Nile \r
-See where it flows, disgorging at seven mouths \r
-Into the sea. To sojourn in that land \r
-He comes, invited by a younger son \r
-In time of dearth, a son whose worthy deeds \r
-Raise him to be the second in that realm \r
-Of Pharaoh. There he dies, and leaves his race \r
-Growing into a nation, and now grown \r
-Suspected to a sequent king, who seeks \r
-To stop their overgrowth, as inmate guests \r
-Too numerous; whence of guests he makes them slaves \r
-Inhospitably, and kills their infant males: \r
-Till by two brethren (these two brethren call \r
-Moses and Aaron) sent from God to claim \r
-His people from enthralment, they return, \r
-With glory and spoil, back to their promised land. \r
-But first, the lawless tyrant, who denies \r
-To know their God, or message to regard, \r
-Must be compelled by signs and judgements dire; \r
-To blood unshed the rivers must be turned; \r
-Frogs, lice, and flies, must all his palace fill \r
-With loathed intrusion, and fill all the land; \r
-His cattle must of rot and murren die; \r
-Botches and blains must all his flesh emboss, \r
-And all his people; thunder mixed with hail, \r
-Hail mixed with fire, must rend the Egyptians sky, \r
-And wheel on the earth, devouring where it rolls; \r
-What it devours not, herb, or fruit, or grain, \r
-A darksome cloud of locusts swarming down \r
-Must eat, and on the ground leave nothing green; \r
-Darkness must overshadow all his bounds, \r
-Palpable darkness, and blot out three days; \r
-Last, with one midnight stroke, all the first-born \r
-Of Egypt must lie dead. Thus with ten wounds \r
-The river-dragon tamed at length submits \r
-To let his sojourners depart, and oft \r
-Humbles his stubborn heart; but still, as ice \r
-More hardened after thaw; till, in his rage \r
-Pursuing whom he late dismissed, the sea \r
-Swallows him with his host; but them lets pass, \r
-As on dry land, between two crystal walls; \r
-Awed by the rod of Moses so to stand \r
-Divided, till his rescued gain their shore: \r
-Such wondrous power God to his saint will lend, \r
-Though present in his Angel; who shall go \r
-Before them in a cloud, and pillar of fire; \r
-By day a cloud, by night a pillar of fire; \r
-To guide them in their journey, and remove \r
-Behind them, while the obdurate king pursues: \r
-All night he will pursue; but his approach \r
-Darkness defends between till morning watch; \r
-Then through the fiery pillar, and the cloud, \r
-God looking forth will trouble all his host, \r
-And craze their chariot-wheels: when by command \r
-Moses once more his potent rod extends \r
-Over the sea; the sea his rod obeys; \r
-On their embattled ranks the waves return, \r
-And overwhelm their war: The race elect \r
-Safe toward Canaan from the shore advance \r
-Through the wild Desart, not the readiest way; \r
-Lest, entering on the Canaanite alarmed, \r
-War terrify them inexpert, and fear \r
-Return them back to Egypt, choosing rather \r
-Inglorious life with servitude; for life \r
-To noble and ignoble is more sweet \r
-Untrained in arms, where rashness leads not on. \r
-This also shall they gain by their delay \r
-In the wide wilderness; there they shall found \r
-Their government, and their great senate choose \r
-Through the twelve tribes, to rule by laws ordained: \r
-God from the mount of Sinai, whose gray top \r
-Shall tremble, he descending, will himself \r
-In thunder, lightning, and loud trumpets' sound, \r
-Ordain them laws; part, such as appertain \r
-To civil justice; part, religious rites \r
-Of sacrifice; informing them, by types \r
-And shadows, of that destined Seed to bruise \r
-The Serpent, by what means he shall achieve \r
-Mankind's deliverance. But the voice of God \r
-To mortal ear is dreadful: They beseech \r
-That Moses might report to them his will, \r
-And terrour cease; he grants what they besought, \r
-Instructed that to God is no access \r
-Without Mediator, whose high office now \r
-Moses in figure bears; to introduce \r
-One greater, of whose day he shall foretel, \r
-And all the Prophets in their age the times \r
-Of great Messiah shall sing. Thus, laws and rites \r
-Established, such delight hath God in Men \r
-Obedient to his will, that he vouchsafes \r
-Among them to set up his tabernacle; \r
-The Holy One with mortal Men to dwell: \r
-By his prescript a sanctuary is framed \r
-Of cedar, overlaid with gold; therein \r
-An ark, and in the ark his testimony, \r
-The records of his covenant; over these \r
-A mercy-seat of gold, between the wings \r
-Of two bright Cherubim; before him burn \r
-Seven lamps as in a zodiack representing \r
-The heavenly fires; over the tent a cloud \r
-Shall rest by day, a fiery gleam by night; \r
-Save when they journey, and at length they come, \r
-Conducted by his Angel, to the land \r
-Promised to Abraham and his seed:--The rest \r
-Were long to tell; how many battles fought \r
-How many kings destroyed; and kingdoms won; \r
-Or how the sun shall in mid Heaven stand still \r
-A day entire, and night's due course adjourn, \r
-Man's voice commanding, 'Sun, in Gibeon stand, \r
-'And thou moon in the vale of Aialon, \r
-'Till Israel overcome! so call the third \r
-From Abraham, son of Isaac; and from him \r
-His whole descent, who thus shall Canaan win. \r
-Here Adam interposed. O sent from Heaven, \r
-Enlightener of my darkness, gracious things \r
-Thou hast revealed; those chiefly, which concern \r
-Just Abraham and his seed: now first I find \r
-Mine eyes true-opening, and my heart much eased; \r
-Erewhile perplexed with thoughts, what would become \r
-Of me and all mankind: But now I see \r
-His day, in whom all nations shall be blest; \r
-Favour unmerited by me, who sought \r
-Forbidden knowledge by forbidden means. \r
-This yet I apprehend not, why to those \r
-Among whom God will deign to dwell on earth \r
-So many and so various laws are given; \r
-So many laws argue so many sins \r
-Among them; how can God with such reside? \r
-To whom thus Michael. Doubt not but that sin \r
-Will reign among them, as of thee begot; \r
-And therefore was law given them, to evince \r
-Their natural pravity, by stirring up \r
-Sin against law to fight: that when they see \r
-Law can discover sin, but not remove, \r
-Save by those shadowy expiations weak, \r
-The blood of bulls and goats, they may conclude \r
-Some blood more precious must be paid for Man; \r
-Just for unjust; that, in such righteousness \r
-To them by faith imputed, they may find \r
-Justification towards God, and peace \r
-Of conscience; which the law by ceremonies \r
-Cannot appease; nor Man the mortal part \r
-Perform; and, not performing, cannot live. \r
-So law appears imperfect; and but given \r
-With purpose to resign them, in full time, \r
-Up to a better covenant; disciplined \r
-From shadowy types to truth; from flesh to spirit; \r
-From imposition of strict laws to free \r
-Acceptance of large grace; from servile fear \r
-To filial; works of law to works of faith. \r
-And therefore shall not Moses, though of God \r
-Highly beloved, being but the minister \r
-Of law, his people into Canaan lead; \r
-But Joshua, whom the Gentiles Jesus call, \r
-His name and office bearing, who shall quell \r
-The adversary-Serpent, and bring back \r
-Through the world's wilderness long-wandered Man \r
-Safe to eternal Paradise of rest. \r
-Mean while they, in their earthly Canaan placed, \r
-Long time shall dwell and prosper, but when sins \r
-National interrupt their publick peace, \r
-Provoking God to raise them enemies; \r
-From whom as oft he saves them penitent \r
-By Judges first, then under Kings; of whom \r
-The second, both for piety renowned \r
-And puissant deeds, a promise shall receive \r
-Irrevocable, that his regal throne \r
-For ever shall endure; the like shall sing \r
-All Prophecy, that of the royal stock \r
-Of David (so I name this king) shall rise \r
-A Son, the Woman's seed to thee foretold, \r
-Foretold to Abraham, as in whom shall trust \r
-All nations; and to kings foretold, of kings \r
-The last; for of his reign shall be no end. \r
-But first, a long succession must ensue; \r
-And his next son, for wealth and wisdom famed, \r
-The clouded ark of God, till then in tents \r
-Wandering, shall in a glorious temple enshrine. \r
-Such follow him, as shall be registered \r
-Part good, part bad; of bad the longer scroll; \r
-Whose foul idolatries, and other faults \r
-Heaped to the popular sum, will so incense \r
-God, as to leave them, and expose their land, \r
-Their city, his temple, and his holy ark, \r
-With all his sacred things, a scorn and prey \r
-To that proud city, whose high walls thou sawest \r
-Left in confusion; Babylon thence called. \r
-There in captivity he lets them dwell \r
-The space of seventy years; then brings them back, \r
-Remembering mercy, and his covenant sworn \r
-To David, stablished as the days of Heaven. \r
-Returned from Babylon by leave of kings \r
-Their lords, whom God disposed, the house of God \r
-They first re-edify; and for a while \r
-In mean estate live moderate; till, grown \r
-In wealth and multitude, factious they grow; \r
-But first among the priests dissention springs, \r
-Men who attend the altar, and should most \r
-Endeavour peace: their strife pollution brings \r
-Upon the temple itself: at last they seise \r
-The scepter, and regard not David's sons; \r
-Then lose it to a stranger, that the true \r
-Anointed King Messiah might be born \r
-Barred of his right; yet at his birth a star, \r
-Unseen before in Heaven, proclaims him come; \r
-And guides the eastern sages, who inquire \r
-His place, to offer incense, myrrh, and gold: \r
-His place of birth a solemn Angel tells \r
-To simple shepherds, keeping watch by night; \r
-They gladly thither haste, and by a quire \r
-Of squadroned Angels hear his carol sung. \r
-A virgin is his mother, but his sire \r
-The power of the Most High: He shall ascend \r
-The throne hereditary, and bound his reign \r
-With Earth's wide bounds, his glory with the Heavens. \r
-He ceased, discerning Adam with such joy \r
-Surcharged, as had like grief been dewed in tears, \r
-Without the vent of words; which these he breathed. \r
-O prophet of glad tidings, finisher \r
-Of utmost hope! now clear I understand \r
-What oft my steadiest thoughts have searched in vain; \r
-Why our great Expectation should be called \r
-The seed of Woman: Virgin Mother, hail, \r
-High in the love of Heaven; yet from my loins \r
-Thou shalt proceed, and from thy womb the Son \r
-Of God Most High: so God with Man unites! \r
-Needs must the Serpent now his capital bruise \r
-Expect with mortal pain: Say where and when \r
-Their fight, what stroke shall bruise the victor's heel. \r
-To whom thus Michael. Dream not of their fight, \r
-As of a duel, or the local wounds \r
-Of head or heel: Not therefore joins the Son \r
-Manhood to Godhead, with more strength to foil \r
-Thy enemy; nor so is overcome \r
-Satan, whose fall from Heaven, a deadlier bruise, \r
-Disabled, not to give thee thy death's wound: \r
-Which he, who comes thy Saviour, shall recure, \r
-Not by destroying Satan, but his works \r
-In thee, and in thy seed: Nor can this be, \r
-But by fulfilling that which thou didst want, \r
-Obedience to the law of God, imposed \r
-On penalty of death, and suffering death; \r
-The penalty to thy transgression due, \r
-And due to theirs which out of thine will grow: \r
-So only can high Justice rest appaid. \r
-The law of God exact he shall fulfil \r
-Both by obedience and by love, though love \r
-Alone fulfil the law; thy punishment \r
-He shall endure, by coming in the flesh \r
-To a reproachful life, and cursed death; \r
-Proclaiming life to all who shall believe \r
-In his redemption; and that his obedience, \r
-Imputed, becomes theirs by faith; his merits \r
-To save them, not their own, though legal, works. \r
-For this he shall live hated, be blasphemed, \r
-Seised on by force, judged, and to death condemned \r
-A shameful and accursed, nailed to the cross \r
-By his own nation; slain for bringing life: \r
-But to the cross he nails thy enemies, \r
-The law that is against thee, and the sins \r
-Of all mankind, with him there crucified, \r
-Never to hurt them more who rightly trust \r
-In this his satisfaction; so he dies, \r
-But soon revives; Death over him no power \r
-Shall long usurp; ere the third dawning light \r
-Return, the stars of morn shall see him rise \r
-Out of his grave, fresh as the dawning light, \r
-Thy ransom paid, which Man from death redeems, \r
-His death for Man, as many as offered life \r
-Neglect not, and the benefit embrace \r
-By faith not void of works: This God-like act \r
-Annuls thy doom, the death thou shouldest have died, \r
-In sin for ever lost from life; this act \r
-Shall bruise the head of Satan, crush his strength, \r
-Defeating Sin and Death, his two main arms; \r
-And fix far deeper in his head their stings \r
-Than temporal death shall bruise the victor's heel, \r
-Or theirs whom he redeems; a death, like sleep, \r
-A gentle wafting to immortal life. \r
-Nor after resurrection shall he stay \r
-Longer on earth, than certain times to appear \r
-To his disciples, men who in his life \r
-Still followed him; to them shall leave in charge \r
-To teach all nations what of him they learned \r
-And his salvation; them who shall believe \r
-Baptizing in the profluent stream, the sign \r
-Of washing them from guilt of sin to life \r
-Pure, and in mind prepared, if so befall, \r
-For death, like that which the Redeemer died. \r
-All nations they shall teach; for, from that day, \r
-Not only to the sons of Abraham's loins \r
-Salvation shall be preached, but to the sons \r
-Of Abraham's faith wherever through the world; \r
-So in his seed all nations shall be blest. \r
-Then to the Heaven of Heavens he shall ascend \r
-With victory, triumphing through the air \r
-Over his foes and thine; there shall surprise \r
-The Serpent, prince of air, and drag in chains \r
-Through all his realm, and there confounded leave; \r
-Then enter into glory, and resume \r
-His seat at God's right hand, exalted high \r
-Above all names in Heaven; and thence shall come, \r
-When this world's dissolution shall be ripe, \r
-With glory and power to judge both quick and dead; \r
-To judge the unfaithful dead, but to reward \r
-His faithful, and receive them into bliss, \r
-Whether in Heaven or Earth; for then the Earth \r
-Shall all be Paradise, far happier place \r
-Than this of Eden, and far happier days. \r
-So spake the Arch-Angel Michael; then paused, \r
-As at the world's great period; and our sire, \r
-Replete with joy and wonder, thus replied. \r
-O Goodness infinite, Goodness immense! \r
-That all this good of evil shall produce, \r
-And evil turn to good; more wonderful \r
-Than that which by creation first brought forth \r
-Light out of darkness! Full of doubt I stand, \r
-Whether I should repent me now of sin \r
-By me done, and occasioned; or rejoice \r
-Much more, that much more good thereof shall spring; \r
-To God more glory, more good-will to Men \r
-From God, and over wrath grace shall abound. \r
-But say, if our Deliverer up to Heaven \r
-Must re-ascend, what will betide the few \r
-His faithful, left among the unfaithful herd, \r
-The enemies of truth? Who then shall guide \r
-His people, who defend? Will they not deal \r
-Worse with his followers than with him they dealt? \r
-Be sure they will, said the Angel; but from Heaven \r
-He to his own a Comforter will send, \r
-The promise of the Father, who shall dwell \r
-His Spirit within them; and the law of faith, \r
-Working through love, upon their hearts shall write, \r
-To guide them in all truth; and also arm \r
-With spiritual armour, able to resist \r
-Satan's assaults, and quench his fiery darts; \r
-What man can do against them, not afraid, \r
-Though to the death; against such cruelties \r
-With inward consolations recompensed, \r
-And oft supported so as shall amaze \r
-Their proudest persecutors: For the Spirit, \r
-Poured first on his Apostles, whom he sends \r
-To evangelize the nations, then on all \r
-Baptized, shall them with wonderous gifts endue \r
-To speak all tongues, and do all miracles, \r
-As did their Lord before them. Thus they win \r
-Great numbers of each nation to receive \r
-With joy the tidings brought from Heaven: At length \r
-Their ministry performed, and race well run, \r
-Their doctrine and their story written left, \r
-They die; but in their room, as they forewarn, \r
-Wolves shall succeed for teachers, grievous wolves, \r
-Who all the sacred mysteries of Heaven \r
-To their own vile advantages shall turn \r
-Of lucre and ambition; and the truth \r
-With superstitions and traditions taint, \r
-Left only in those written records pure, \r
-Though not but by the Spirit understood. \r
-Then shall they seek to avail themselves of names, \r
-Places, and titles, and with these to join \r
-Secular power; though feigning still to act \r
-By spiritual, to themselves appropriating \r
-The Spirit of God, promised alike and given \r
-To all believers; and, from that pretence, \r
-Spiritual laws by carnal power shall force \r
-On every conscience; laws which none shall find \r
-Left them inrolled, or what the Spirit within \r
-Shall on the heart engrave. What will they then \r
-But force the Spirit of Grace itself, and bind \r
-His consort Liberty? what, but unbuild \r
-His living temples, built by faith to stand, \r
-Their own faith, not another's? for, on earth, \r
-Who against faith and conscience can be heard \r
-Infallible? yet many will presume: \r
-Whence heavy persecution shall arise \r
-On all, who in the worship persevere \r
-Of spirit and truth; the rest, far greater part, \r
-Will deem in outward rites and specious forms \r
-Religion satisfied; Truth shall retire \r
-Bestuck with slanderous darts, and works of faith \r
-Rarely be found: So shall the world go on, \r
-To good malignant, to bad men benign; \r
-Under her own weight groaning; till the day \r
-Appear of respiration to the just, \r
-And vengeance to the wicked, at return \r
-Of him so lately promised to thy aid, \r
-The Woman's Seed; obscurely then foretold, \r
-Now ampler known thy Saviour and thy Lord; \r
-Last, in the clouds, from Heaven to be revealed \r
-In glory of the Father, to dissolve \r
-Satan with his perverted world; then raise \r
-From the conflagrant mass, purged and refined, \r
-New Heavens, new Earth, ages of endless date, \r
-Founded in righteousness, and peace, and love; \r
-To bring forth fruits, joy and eternal bliss. \r
-He ended; and thus Adam last replied. \r
-How soon hath thy prediction, Seer blest, \r
-Measured this transient world, the race of time, \r
-Till time stand fixed! Beyond is all abyss, \r
-Eternity, whose end no eye can reach. \r
-Greatly-instructed I shall hence depart; \r
-Greatly in peace of thought; and have my fill \r
-Of knowledge, what this vessel can contain; \r
-Beyond which was my folly to aspire. \r
-Henceforth I learn, that to obey is best, \r
-And love with fear the only God; to walk \r
-As in his presence; ever to observe \r
-His providence; and on him sole depend, \r
-Merciful over all his works, with good \r
-Still overcoming evil, and by small \r
-Accomplishing great things, by things deemed weak \r
-Subverting worldly strong, and worldly wise \r
-By simply meek: that suffering for truth's sake \r
-Is fortitude to highest victory, \r
-And, to the faithful, death the gate of life; \r
-Taught this by his example, whom I now \r
-Acknowledge my Redeemer ever blest. \r
-To whom thus also the Angel last replied. \r
-This having learned, thou hast attained the sum \r
-Of wisdom; hope no higher, though all the stars \r
-Thou knewest by name, and all the ethereal powers, \r
-All secrets of the deep, all Nature's works, \r
-Or works of God in Heaven, air, earth, or sea, \r
-And all the riches of this world enjoyedst, \r
-And all the rule, one empire; only add \r
-Deeds to thy knowledge answerable; add faith, \r
-Add virtue, patience, temperance; add love, \r
-By name to come called charity, the soul \r
-Of all the rest: then wilt thou not be loth \r
-To leave this Paradise, but shalt possess \r
-A Paradise within thee, happier far.-- \r
-Let us descend now therefore from this top \r
-Of speculation; for the hour precise \r
-Exacts our parting hence; and see!the guards, \r
-By me encamped on yonder hill, expect \r
-Their motion; at whose front a flaming sword, \r
-In signal of remove, waves fiercely round: \r
-We may no longer stay: go, waken Eve; \r
-Her also I with gentle dreams have calmed \r
-Portending good, and all her spirits composed \r
-To meek submission: thou, at season fit, \r
-Let her with thee partake what thou hast heard; \r
-Chiefly what may concern her faith to know, \r
-The great deliverance by her seed to come \r
-(For by the Woman's seed) on all mankind: \r
-That ye may live, which will be many days, \r
-Both in one faith unanimous, though sad, \r
-With cause, for evils past; yet much more cheered \r
-With meditation on the happy end. \r
-He ended, and they both descend the hill; \r
-Descended, Adam to the bower, where Eve \r
-Lay sleeping, ran before; but found her waked; \r
-And thus with words not sad she him received. \r
-Whence thou returnest, and whither wentest, I know; \r
-For God is also in sleep; and dreams advise, \r
-Which he hath sent propitious, some great good \r
-Presaging, since with sorrow and heart's distress \r
-Wearied I fell asleep: But now lead on; \r
-In me is no delay; with thee to go, \r
-Is to stay here; without thee here to stay, \r
-Is to go hence unwilling; thou to me \r
-Art all things under $Heaven, all places thou, \r
-Who for my wilful crime art banished hence. \r
-This further consolation yet secure \r
-I carry hence; though all by me is lost, \r
-Such favour I unworthy am vouchsafed, \r
-By me the Promised Seed shall all restore. \r
-So spake our mother Eve; and Adam heard \r
-Well pleased, but answered not: For now, too nigh \r
-The Arch-Angel stood; and, from the other hill \r
-To their fixed station, all in bright array \r
-The Cherubim descended; on the ground \r
-Gliding meteorous, as evening-mist \r
-Risen from a river o'er the marish glides, \r
-And gathers ground fast at the labourer's heel \r
-Homeward returning. High in front advanced, \r
-The brandished sword of God before them blazed, \r
-Fierce as a comet; which with torrid heat, \r
-And vapour as the Libyan air adust, \r
-Began to parch that temperate clime; whereat \r
-In either hand the hastening Angel caught \r
-Our lingering parents, and to the eastern gate \r
-Led them direct, and down the cliff as fast \r
-To the subjected plain; then disappeared. \r
-They, looking back, all the eastern side beheld \r
-Of Paradise, so late their happy seat, \r
-Waved over by that flaming brand; the gate \r
-With dreadful faces thronged, and fiery arms: \r
-Some natural tears they dropt, but wiped them soon; \r
-The world was all before them, where to choose \r
-Their place of rest, and Providence their guide: \r
-They, hand in hand, with wandering steps and slow, \r
-Through Eden took their solitary way. \r
- \r
-[The End]\1a\1a\r
+++ /dev/null
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-http://www.intellicast.com/Golf/World/UnitedStates/Midwest/Ohio/Zanesville/CurrentWinds/
-http://www.nada.kth.se/systemgruppen/docs/javadoc/jdk-1.3/docs/api/javax/swing/text/class-use/TabSet.html
-http://www.my-cat.de/hunde/zucht/file24.htm
-http://194.128.65.4/pa/cm199899/cmwib/wb981128/edms.htm
-http://www.gutenberg2000.de/sagen/austria/tirol/adasbub.htm
-http://www1.onelist.com/message/osaki/22
-http://www.highwired.net/ESchoolDrive/JumpPage/1,5565,25179-46,00.html
-http://pcmagazin.de/download/library/deADW-wc.htm
-http://www.affiliate.hpstore.hp.co.uk/do/session/380873/vsid/1148/tid/1148/cid/74115/mid/1001/rid/1003/chid/1050/parser/yes/imref/eqqLmwlGltt5tkeHmjbHumlLkZl5jlcHol4/url/http://www.hp-creativeworld.com/creativeworld.asp?lang=f
-http://cscns.csc.gifu.gifu.jp/pushcorn-kit/tanigumi/paged/0300214020000147.html
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-http://cscns.csc.gifu.gifu.jp/pushcorn-kit/tanigumi/paged/0300214020001617.html
-http://cpan.nitco.com/modules/by-module/String/MLEHMANN/?N=D
-http://www.rge.com/pub/tex/language/ethiopia/ethtex/lqh_fonts/
-http://130.158.208.53/WWW/PDB2/PCD4711/htmls/41.html
-http://www.thisislancashire.co.uk/lancashire/archive/1997/05/15/LEIGH0VQ.html
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-http://southwind.tukids.tucows.com/mac/parents/adnload/72310_26093.html
-http://ftp1.support.compaq.com/public/vms/vax/v7.2/dsnlink/2.2/dsnlinke022.a-dcx_vaxexe
-http://wynnsystems.com/i.I_5aGd/search/listCompanies.html
-http://www.pobladores.com/territorios/juegos/Zhief_Fantasy_World/info
-http://www.pobladores.com/territorios/juegos/Zhief_Fantasy_World/pagina/9
-http://www.aebius.com/rpm2html/contrib/libc5/i386/usr_sbin_Tree.html
-http://info.rutgers.edu/cgi-bin/RUInfo/TallyStats/name=WebRequest&exec=buildlimit&limit=9,0-22,0-0,0-9,4
-http://polygraph.ircache.net:8181/services/define/http_-2www.fastcounter.com/noframes/specials.htm
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-http://www.outdoorwire.com/content/lists/jeepoffroad/200010/msg00234.html?{LoadingFrameset}
-http://www-uk8.cricket.org/link_to_database/ARCHIVE/2000-01/ENG_IN_PAK/ENG_IN_PAK_OCT-DEC2000_ENG-SQUAD.html
-http://www-uk8.cricket.org/link_to_database/ARCHIVE/CRICKET_NEWS/2000/OCT/057670_CI_25OCT2000.html
-http://www.chaos.dk/sexriddle/c/c/e/k/
-http://ben.aspads.net/ex/c/190/608504034
-http://forum.rai.it/aca-finestre/dispatch.cgi/FORUM/folderFrame/100001/0/alpha/2040958
-http://www.teacherformation.org/html/od/facilitators.cfm/task1,help/discussion_id,2/xid,5237/yid,3113916
-http://www.mirror.edu.cn/res/www.isoc.org/inet98/proceedings/7d/
-http://www.sumthin.nu/archives/bugtraq/Nov_1998/msg00058.html
-http://proxy.tiscover.com/1Root/Kontinent/6/Staat/7/Bundesland/20/Regionen/regionen_az...2.html
-http://www.streetprices.com/products/sortdetailbylowprice/SP142252.html
-http://www.streetprices.com/products/sortdetailby1day/SP142252.html
-http://pp3.shef.ac.uk:4040/form/path=1,+%3A%22countryName%3DGB%40organizationName%3DUniversity+of+Sheffield%40organizationalUnitName%3DFinance%40commonName%3DS+Green%22
-http://travelocity-dest.excite.com/DestGuides/0,1840,TRAVELOCITY|2662|3|1|239114,00.html
-http://www.maastrek.de/maas/4a73999ddfd2d79be20a/1/0/5
-http://aol.weather.com/weather/cities/us_pa_fairview.html
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-http://javatest.a-net.nl/servlet/pedit.Main/http://www.tigerden.com/junkmail/compladdr.html
-http://ftp.dti.ad.jp/pub/windows/forest/file/backup/press1/?M=A
-http://www.contest.edu.tw/85/endshow/5/baseball/news/97feb/0225t_1c.html
-http://www.contest.edu.tw/85/endshow/5/baseball/news/97feb/0225c_3c.html
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-http://www.contest.edu.tw/85/endshow/5/baseball/news/97feb/0216c_play.html
-http://www.contest.edu.tw/85/endshow/5/baseball/news/97feb/0214co_1c.html
-http://preview.egroups.com/messages/decoratingplusnews/6
-http://astro1.chungnam.ac.kr/NetBBS/Bbs.dll/bulletin/rcm/zka/B2-kC23n/qqatt/^
\ No newline at end of file
+++ /dev/null
-.TH XARGS 1L \" -*- nroff -*-
-.SH NAME
-xargs \- build and execute command lines from standard input
-.SH SYNOPSIS
-.B xargs
-[\-0prtx] [\-e[eof-str]] [\-i[replace-str]] [\-l[max-lines]]
-[\-n max-args] [\-s max-chars] [\-P max-procs] [\-\-null] [\-\-eof[=eof-str]]
-[\-\-replace[=replace-str]] [\-\-max-lines[=max-lines]] [\-\-interactive]
-[\-\-max-chars=max-chars] [\-\-verbose] [\-\-exit] [\-\-max-procs=max-procs]
-[\-\-max-args=max-args] [\-\-no-run-if-empty] [\-\-version] [\-\-help]
-[command [initial-arguments]]
-.SH DESCRIPTION
-This manual page
-documents the GNU version of
-.BR xargs .
-.B xargs
-reads arguments from the standard input, delimited by blanks (which can be
-protected with double or single quotes or a backslash) or newlines,
-and executes the
-.I command
-(default is /bin/echo) one or more times with any
-.I initial-arguments
-followed by arguments read from standard input. Blank lines on the
-standard input are ignored.
-.P
-.B xargs
-exits with the following status:
-.nf
-0 if it succeeds
-123 if any invocation of the command exited with status 1-125
-124 if the command exited with status 255
-125 if the command is killed by a signal
-126 if the command cannot be run
-127 if the command is not found
-1 if some other error occurred.
-.fi
-.SS OPTIONS
-.TP
-.I "\-\-null, \-0"
-Input filenames are terminated by a null character instead of by
-whitespace, and the quotes and backslash are not special (every
-character is taken literally). Disables the end of file string, which
-is treated like any other argument. Useful when arguments might
-contain white space, quote marks, or backslashes. The GNU find
-\-print0 option produces input suitable for this mode.
-.TP
-.I "\-\-eof[=eof-str], \-e[eof-str]"
-Set the end of file string to \fIeof-str\fR. If the end of file
-string occurs as a line of input, the rest of the input is ignored.
-If \fIeof-str\fR is omitted, there is no end of file string. If this
-option is not given, the end of file string defaults to "_".
-.TP
-.I "\-\-help"
-Print a summary of the options to
-.B xargs
-and exit.
-.TP
-.I "\-\-replace[=replace-str], \-i[replace-str]"
-Replace occurences of \fIreplace-str\fR in the initial arguments with
-names read from standard input.
-Also, unquoted blanks do not terminate arguments.
-If \fIreplace-str\fR is omitted, it
-defaults to "{}" (like for `find \-exec'). Implies \fI\-x\fP and
-\fI\-l 1\fP.
-.TP
-.I "\-\-max-lines[=max-lines], -l[max-lines]"
-Use at most \fImax-lines\fR nonblank input lines per command line;
-\fImax-lines\fR defaults to 1 if omitted. Trailing blanks cause an
-input line to be logically continued on the next input line. Implies
-\fI\-x\fR.
-.TP
-.I "\-\-max-args=max-args, \-n max-args"
-Use at most \fImax-args\fR arguments per command line. Fewer than
-\fImax-args\fR arguments will be used if the size (see the \-s option)
-is exceeded, unless the \-x option is given, in which case \fBxargs\fR
-will exit.
-.TP
-.I "\-\-interactive, \-p"
-Prompt the user about whether to run each command line and read a line
-from the terminal. Only run the command line if the response starts
-with `y' or `Y'. Implies \fI\-t\fR.
-.TP
-.I "\-\-no-run-if-empty, \-r"
-If the standard input does not contain any nonblanks, do not run the
-command. Normally, the command is run once even if there is no input.
-.TP
-.I "\-\-max-chars=max-chars, \-s max-chars"
-Use at most \fImax-chars\fR characters per command line, including the
-command and initial arguments and the terminating nulls at the ends of
-the argument strings. The default is as large as possible, up to 20k
-characters.
-.TP
-.I "\-\-verbose, \-t"
-Print the command line on the standard error output before executing
-it.
-.TP
-.I "\-\-version"
-Print the version number of
-.B xargs
-and exit.
-.TP
-.I "\-\-exit, \-x"
-Exit if the size (see the \fI\-s\fR option) is exceeded.
-.TP
-.I "\-\-max-procs=max-procs, \-P max-procs"
-Run up to \fImax-procs\fR processes at a time; the default is 1. If
-\fImax-procs\fR is 0, \fBxargs\fR will run as many processes as
-possible at a time. Use the \fI\-n\fR option with \fI\-P\fR;
-otherwise chances are that only one exec will be done.
-.SH "SEE ALSO"
-\fBfind\fP(1L), \fBlocate\fP(1L), \fBlocatedb\fP(5L), \fBupdatedb\fP(1)
-\fBFinding Files\fP (on-line in Info, or printed)
+++ /dev/null
-snappy-1.0.5/snappy-stubs-public.h
\ No newline at end of file
+++ /dev/null
-snappy-1.0.5/snappy.h
\ No newline at end of file
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Decodes the blocks generated by block_builder.cc.
-
-#include "table/block.h"
-
-#include <vector>
-#include <algorithm>
-#include "rocksdb/comparator.h"
-#include "table/format.h"
-#include "util/coding.h"
-#include "util/logging.h"
-
-namespace rocksdb {
-
-inline uint32_t Block::NumRestarts() const {
- assert(size_ >= 2*sizeof(uint32_t));
- return DecodeFixed32(data_ + size_ - sizeof(uint32_t));
-}
-
-Block::Block(const BlockContents& contents)
- : data_(contents.data.data()),
- size_(contents.data.size()),
- owned_(contents.heap_allocated),
- cachable_(contents.cachable),
- compression_type_(contents.compression_type) {
- if (size_ < sizeof(uint32_t)) {
- size_ = 0; // Error marker
- } else {
- restart_offset_ = size_ - (1 + NumRestarts()) * sizeof(uint32_t);
- if (restart_offset_ > size_ - sizeof(uint32_t)) {
- // The size is too small for NumRestarts() and therefore
- // restart_offset_ wrapped around.
- size_ = 0;
- }
- }
-}
-
-Block::~Block() {
- if (owned_) {
- delete[] data_;
- }
-}
-
-// Helper routine: decode the next block entry starting at "p",
-// storing the number of shared key bytes, non_shared key bytes,
-// and the length of the value in "*shared", "*non_shared", and
-// "*value_length", respectively. Will not derefence past "limit".
-//
-// If any errors are detected, returns nullptr. Otherwise, returns a
-// pointer to the key delta (just past the three decoded values).
-static inline const char* DecodeEntry(const char* p, const char* limit,
- uint32_t* shared,
- uint32_t* non_shared,
- uint32_t* value_length) {
- if (limit - p < 3) return nullptr;
- *shared = reinterpret_cast<const unsigned char*>(p)[0];
- *non_shared = reinterpret_cast<const unsigned char*>(p)[1];
- *value_length = reinterpret_cast<const unsigned char*>(p)[2];
- if ((*shared | *non_shared | *value_length) < 128) {
- // Fast path: all three values are encoded in one byte each
- p += 3;
- } else {
- if ((p = GetVarint32Ptr(p, limit, shared)) == nullptr) return nullptr;
- if ((p = GetVarint32Ptr(p, limit, non_shared)) == nullptr) return nullptr;
- if ((p = GetVarint32Ptr(p, limit, value_length)) == nullptr) return nullptr;
- }
-
- if (static_cast<uint32_t>(limit - p) < (*non_shared + *value_length)) {
- return nullptr;
- }
- return p;
-}
-
-class Block::Iter : public Iterator {
- private:
- const Comparator* const comparator_;
- const char* const data_; // underlying block contents
- uint32_t const restarts_; // Offset of restart array (list of fixed32)
- uint32_t const num_restarts_; // Number of uint32_t entries in restart array
-
- // current_ is offset in data_ of current entry. >= restarts_ if !Valid
- uint32_t current_;
- uint32_t restart_index_; // Index of restart block in which current_ falls
- std::string key_;
- Slice value_;
- Status status_;
-
- inline int Compare(const Slice& a, const Slice& b) const {
- return comparator_->Compare(a, b);
- }
-
- // Return the offset in data_ just past the end of the current entry.
- inline uint32_t NextEntryOffset() const {
- return (value_.data() + value_.size()) - data_;
- }
-
- uint32_t GetRestartPoint(uint32_t index) {
- assert(index < num_restarts_);
- return DecodeFixed32(data_ + restarts_ + index * sizeof(uint32_t));
- }
-
- void SeekToRestartPoint(uint32_t index) {
- key_.clear();
- restart_index_ = index;
- // current_ will be fixed by ParseNextKey();
-
- // ParseNextKey() starts at the end of value_, so set value_ accordingly
- uint32_t offset = GetRestartPoint(index);
- value_ = Slice(data_ + offset, 0);
- }
-
- public:
- Iter(const Comparator* comparator,
- const char* data,
- uint32_t restarts,
- uint32_t num_restarts)
- : comparator_(comparator),
- data_(data),
- restarts_(restarts),
- num_restarts_(num_restarts),
- current_(restarts_),
- restart_index_(num_restarts_) {
- assert(num_restarts_ > 0);
- }
-
- virtual bool Valid() const { return current_ < restarts_; }
- virtual Status status() const { return status_; }
- virtual Slice key() const {
- assert(Valid());
- return key_;
- }
- virtual Slice value() const {
- assert(Valid());
- return value_;
- }
-
- virtual void Next() {
- assert(Valid());
- ParseNextKey();
- }
-
- virtual void Prev() {
- assert(Valid());
-
- // Scan backwards to a restart point before current_
- const uint32_t original = current_;
- while (GetRestartPoint(restart_index_) >= original) {
- if (restart_index_ == 0) {
- // No more entries
- current_ = restarts_;
- restart_index_ = num_restarts_;
- return;
- }
- restart_index_--;
- }
-
- SeekToRestartPoint(restart_index_);
- do {
- // Loop until end of current entry hits the start of original entry
- } while (ParseNextKey() && NextEntryOffset() < original);
- }
-
- virtual void Seek(const Slice& target) {
- // Binary search in restart array to find the first restart point
- // with a key >= target
- uint32_t left = 0;
- uint32_t right = num_restarts_ - 1;
- while (left < right) {
- uint32_t mid = (left + right + 1) / 2;
- uint32_t region_offset = GetRestartPoint(mid);
- uint32_t shared, non_shared, value_length;
- const char* key_ptr = DecodeEntry(data_ + region_offset,
- data_ + restarts_,
- &shared, &non_shared, &value_length);
- if (key_ptr == nullptr || (shared != 0)) {
- CorruptionError();
- return;
- }
- Slice mid_key(key_ptr, non_shared);
- if (Compare(mid_key, target) < 0) {
- // Key at "mid" is smaller than "target". Therefore all
- // blocks before "mid" are uninteresting.
- left = mid;
- } else {
- // Key at "mid" is >= "target". Therefore all blocks at or
- // after "mid" are uninteresting.
- right = mid - 1;
- }
- }
-
- // Linear search (within restart block) for first key >= target
- SeekToRestartPoint(left);
- while (true) {
- if (!ParseNextKey()) {
- return;
- }
- if (Compare(key_, target) >= 0) {
- return;
- }
- }
- }
-
- virtual void SeekToFirst() {
- SeekToRestartPoint(0);
- ParseNextKey();
- }
-
- virtual void SeekToLast() {
- SeekToRestartPoint(num_restarts_ - 1);
- while (ParseNextKey() && NextEntryOffset() < restarts_) {
- // Keep skipping
- }
- }
-
- private:
- void CorruptionError() {
- current_ = restarts_;
- restart_index_ = num_restarts_;
- status_ = Status::Corruption("bad entry in block");
- key_.clear();
- value_.clear();
- }
-
- bool ParseNextKey() {
- current_ = NextEntryOffset();
- const char* p = data_ + current_;
- const char* limit = data_ + restarts_; // Restarts come right after data
- if (p >= limit) {
- // No more entries to return. Mark as invalid.
- current_ = restarts_;
- restart_index_ = num_restarts_;
- return false;
- }
-
- // Decode next entry
- uint32_t shared, non_shared, value_length;
- p = DecodeEntry(p, limit, &shared, &non_shared, &value_length);
- if (p == nullptr || key_.size() < shared) {
- CorruptionError();
- return false;
- } else {
- key_.resize(shared);
- key_.append(p, non_shared);
- value_ = Slice(p + non_shared, value_length);
- while (restart_index_ + 1 < num_restarts_ &&
- GetRestartPoint(restart_index_ + 1) < current_) {
- ++restart_index_;
- }
- return true;
- }
- }
-};
-
-Iterator* Block::NewIterator(const Comparator* cmp) {
- if (size_ < 2*sizeof(uint32_t)) {
- return NewErrorIterator(Status::Corruption("bad block contents"));
- }
- const uint32_t num_restarts = NumRestarts();
- if (num_restarts == 0) {
- return NewEmptyIterator();
- } else {
- return new Iter(cmp, data_, restart_offset_, num_restarts);
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <stddef.h>
-#include <stdint.h>
-#include "rocksdb/iterator.h"
-#include "rocksdb/options.h"
-
-namespace rocksdb {
-
-struct BlockContents;
-class Comparator;
-
-class Block {
- public:
- // Initialize the block with the specified contents.
- explicit Block(const BlockContents& contents);
-
- ~Block();
-
- size_t size() const { return size_; }
- bool isCachable() const { return cachable_; }
- CompressionType compressionType() const { return compression_type_; }
- Iterator* NewIterator(const Comparator* comparator);
- const char* data() { return data_; }
-
- private:
- uint32_t NumRestarts() const;
-
- const char* data_;
- size_t size_;
- uint32_t restart_offset_; // Offset in data_ of restart array
- bool owned_; // Block owns data_[]
- bool cachable_;
- CompressionType compression_type_;
-
- // No copying allowed
- Block(const Block&);
- void operator=(const Block&);
-
- class Iter;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/block_based_table_builder.h"
-
-#include <assert.h>
-#include <map>
-
-#include "rocksdb/flush_block_policy.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/table.h"
-#include "rocksdb/env.h"
-#include "rocksdb/filter_policy.h"
-#include "rocksdb/options.h"
-#include "table/block_based_table_reader.h"
-#include "table/block.h"
-#include "table/block_builder.h"
-#include "table/filter_block.h"
-#include "table/format.h"
-#include "util/coding.h"
-#include "util/crc32c.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-namespace {
-
-struct BytewiseLessThan {
- bool operator()(const std::string& key1, const std::string& key2) const {
- // smaller entries will be placed in front.
- return comparator->Compare(key1, key2) <= 0;
- }
- const Comparator* comparator = BytewiseComparator();
-};
-
-// When writing to a block that requires entries to be sorted by
-// `BytewiseComparator`, we can buffer the content to `BytewiseSortedMap`
-// before writng to store.
-typedef std::map<std::string, std::string, BytewiseLessThan> BytewiseSortedMap;
-
-void AddStats(BytewiseSortedMap& stats, std::string name, uint64_t val) {
- assert(stats.find(name) == stats.end());
-
- std::string dst;
- PutVarint64(&dst, val);
-
- stats.insert(
- std::make_pair(name, dst)
- );
-}
-
-static bool GoodCompressionRatio(size_t compressed_size, size_t raw_size) {
- // Check to see if compressed less than 12.5%
- return compressed_size < raw_size - (raw_size / 8u);
-}
-
-// Were we encounter any error occurs during user-defined statistics collection,
-// we'll write the warning message to info log.
-void LogStatsCollectionError(
- Logger* info_log, const std::string& method, const std::string& name) {
- assert(method == "Add" || method == "Finish");
-
- std::string msg =
- "[Warning] encountered error when calling TableStatsCollector::" +
- method + "() with collector name: " + name;
- Log(info_log, "%s", msg.c_str());
-}
-
-} // anonymous namespace
-
-struct BlockBasedTableBuilder::Rep {
- Options options;
- Options index_block_options;
- WritableFile* file;
- uint64_t offset = 0;
- Status status;
- BlockBuilder data_block;
- BlockBuilder index_block;
- std::string last_key;
- CompressionType compression_type;
-
- uint64_t num_entries = 0;
- uint64_t num_data_blocks = 0;
- uint64_t raw_key_size = 0;
- uint64_t raw_value_size = 0;
- uint64_t data_size = 0;
-
- bool closed = false; // Either Finish() or Abandon() has been called.
- FilterBlockBuilder* filter_block;
- char compressed_cache_key_prefix[BlockBasedTable::kMaxCacheKeyPrefixSize];
- size_t compressed_cache_key_prefix_size;
-
-
- BlockHandle pending_handle; // Handle to add to index block
-
- std::string compressed_output;
- std::unique_ptr<FlushBlockPolicy> flush_block_policy;
-
- Rep(const Options& opt, WritableFile* f, CompressionType compression_type)
- : options(opt),
- index_block_options(opt),
- file(f),
- data_block(&options),
- index_block(1, index_block_options.comparator),
- compression_type(compression_type),
- filter_block(opt.filter_policy == nullptr ? nullptr
- : new FilterBlockBuilder(opt)) {
- assert(options.flush_block_policy_factory);
- auto factory = options.flush_block_policy_factory;
- flush_block_policy.reset(factory->NewFlushBlockPolicy(data_block));
- }
-};
-
-BlockBasedTableBuilder::BlockBasedTableBuilder(const Options& options,
- WritableFile* file,
- CompressionType compression_type)
- : rep_(new Rep(options, file, compression_type)) {
- if (rep_->filter_block != nullptr) {
- rep_->filter_block->StartBlock(0);
- }
- if (options.block_cache_compressed.get() != nullptr) {
- BlockBasedTable::GenerateCachePrefix(options.block_cache_compressed, file,
- &rep_->compressed_cache_key_prefix[0],
- &rep_->compressed_cache_key_prefix_size);
- }
-}
-
-BlockBasedTableBuilder::~BlockBasedTableBuilder() {
- assert(rep_->closed); // Catch errors where caller forgot to call Finish()
- delete rep_->filter_block;
- delete rep_;
-}
-
-void BlockBasedTableBuilder::Add(const Slice& key, const Slice& value) {
- Rep* r = rep_;
- assert(!r->closed);
- if (!ok()) return;
- if (r->num_entries > 0) {
- assert(r->options.comparator->Compare(key, Slice(r->last_key)) > 0);
- }
-
- auto should_flush = r->flush_block_policy->Update(key, value);
- if (should_flush) {
- assert(!r->data_block.empty());
- Flush();
-
- // Add item to index block.
- // We do not emit the index entry for a block until we have seen the
- // first key for the next data block. This allows us to use shorter
- // keys in the index block. For example, consider a block boundary
- // between the keys "the quick brown fox" and "the who". We can use
- // "the r" as the key for the index block entry since it is >= all
- // entries in the first block and < all entries in subsequent
- // blocks.
- if (ok()) {
- r->options.comparator->FindShortestSeparator(&r->last_key, key);
- std::string handle_encoding;
- r->pending_handle.EncodeTo(&handle_encoding);
- r->index_block.Add(r->last_key, Slice(handle_encoding));
- }
- }
-
- if (r->filter_block != nullptr) {
- r->filter_block->AddKey(key);
- }
-
- r->last_key.assign(key.data(), key.size());
- r->data_block.Add(key, value);
- r->num_entries++;
- r->raw_key_size += key.size();
- r->raw_value_size += value.size();
-
- for (auto collector : r->options.table_stats_collectors) {
- Status s = collector->Add(key, value);
- if (!s.ok()) {
- LogStatsCollectionError(
- r->options.info_log.get(),
- "Add", /* method */
- collector->Name()
- );
- }
- }
-}
-
-void BlockBasedTableBuilder::Flush() {
- Rep* r = rep_;
- assert(!r->closed);
- if (!ok()) return;
- if (r->data_block.empty()) return;
- WriteBlock(&r->data_block, &r->pending_handle);
- if (ok()) {
- r->status = r->file->Flush();
- }
- if (r->filter_block != nullptr) {
- r->filter_block->StartBlock(r->offset);
- }
- r->data_size = r->offset;
- ++r->num_data_blocks;
-}
-
-void BlockBasedTableBuilder::WriteBlock(BlockBuilder* block,
- BlockHandle* handle) {
- // File format contains a sequence of blocks where each block has:
- // block_data: uint8[n]
- // type: uint8
- // crc: uint32
- assert(ok());
- Rep* r = rep_;
- Slice raw = block->Finish();
-
- Slice block_contents;
- std::string* compressed = &r->compressed_output;
- CompressionType type = r->compression_type;
- switch (type) {
- case kNoCompression:
- block_contents = raw;
- break;
-
- case kSnappyCompression: {
- std::string* compressed = &r->compressed_output;
- if (port::Snappy_Compress(r->options.compression_opts, raw.data(),
- raw.size(), compressed) &&
- GoodCompressionRatio(compressed->size(), raw.size())) {
- block_contents = *compressed;
- } else {
- // Snappy not supported, or not good compression ratio, so just
- // store uncompressed form
- block_contents = raw;
- type = kNoCompression;
- }
- break;
- }
- case kZlibCompression:
- if (port::Zlib_Compress(r->options.compression_opts, raw.data(),
- raw.size(), compressed) &&
- GoodCompressionRatio(compressed->size(), raw.size())) {
- block_contents = *compressed;
- } else {
- // Zlib not supported, or not good compression ratio, so just
- // store uncompressed form
- block_contents = raw;
- type = kNoCompression;
- }
- break;
- case kBZip2Compression:
- if (port::BZip2_Compress(r->options.compression_opts, raw.data(),
- raw.size(), compressed) &&
- GoodCompressionRatio(compressed->size(), raw.size())) {
- block_contents = *compressed;
- } else {
- // BZip not supported, or not good compression ratio, so just
- // store uncompressed form
- block_contents = raw;
- type = kNoCompression;
- }
- break;
- }
- WriteRawBlock(block_contents, type, handle);
- r->compressed_output.clear();
- block->Reset();
-}
-
-void BlockBasedTableBuilder::WriteRawBlock(const Slice& block_contents,
- CompressionType type,
- BlockHandle* handle) {
- Rep* r = rep_;
- StopWatch sw(r->options.env, r->options.statistics, WRITE_RAW_BLOCK_MICROS);
- handle->set_offset(r->offset);
- handle->set_size(block_contents.size());
- r->status = r->file->Append(block_contents);
- if (r->status.ok()) {
- char trailer[kBlockTrailerSize];
- trailer[0] = type;
- uint32_t crc = crc32c::Value(block_contents.data(), block_contents.size());
- crc = crc32c::Extend(crc, trailer, 1); // Extend crc to cover block type
- EncodeFixed32(trailer+1, crc32c::Mask(crc));
- r->status = r->file->Append(Slice(trailer, kBlockTrailerSize));
- if (r->status.ok()) {
- r->status = InsertBlockInCache(block_contents, type, handle);
- }
- if (r->status.ok()) {
- r->offset += block_contents.size() + kBlockTrailerSize;
- }
- }
-}
-
-Status BlockBasedTableBuilder::status() const {
- return rep_->status;
-}
-
-static void DeleteCachedBlock(const Slice& key, void* value) {
- Block* block = reinterpret_cast<Block*>(value);
- delete block;
-}
-
-//
-// Make a copy of the block contents and insert into compressed block cache
-//
-Status BlockBasedTableBuilder::InsertBlockInCache(const Slice& block_contents,
- const CompressionType type,
- const BlockHandle* handle) {
- Rep* r = rep_;
- Cache* block_cache_compressed = r->options.block_cache_compressed.get();
-
- if (type != kNoCompression && block_cache_compressed != nullptr) {
-
- Cache::Handle* cache_handle = nullptr;
- size_t size = block_contents.size();
-
- char* ubuf = new char[size]; // make a new copy
- memcpy(ubuf, block_contents.data(), size);
-
- BlockContents results;
- Slice sl(ubuf, size);
- results.data = sl;
- results.cachable = true; // XXX
- results.heap_allocated = true;
- results.compression_type = type;
-
- Block* block = new Block(results);
-
- // make cache key by appending the file offset to the cache prefix id
- char* end = EncodeVarint64(
- r->compressed_cache_key_prefix +
- r->compressed_cache_key_prefix_size,
- handle->offset());
- Slice key(r->compressed_cache_key_prefix, static_cast<size_t>
- (end - r->compressed_cache_key_prefix));
-
- // Insert into compressed block cache.
- cache_handle = block_cache_compressed->Insert(key, block, block->size(),
- &DeleteCachedBlock);
- block_cache_compressed->Release(cache_handle);
-
- // Invalidate OS cache.
- r->file->InvalidateCache(r->offset, size);
- }
- return Status::OK();
-}
-
-Status BlockBasedTableBuilder::Finish() {
- Rep* r = rep_;
- bool empty_data_block = r->data_block.empty();
- Flush();
- assert(!r->closed);
- r->closed = true;
-
- BlockHandle filter_block_handle,
- metaindex_block_handle,
- index_block_handle;
-
- // Write filter block
- if (ok() && r->filter_block != nullptr) {
- WriteRawBlock(r->filter_block->Finish(), kNoCompression,
- &filter_block_handle);
- }
-
- // To make sure stats block is able to keep the accurate size of index
- // block, we will finish writing all index entries here and flush them
- // to storage after metaindex block is written.
- if (ok() && !empty_data_block) {
- r->options.comparator->FindShortSuccessor(&r->last_key);
-
- std::string handle_encoding;
- r->pending_handle.EncodeTo(&handle_encoding);
- r->index_block.Add(r->last_key, handle_encoding);
- }
-
- // Write meta blocks and metaindex block with the following order.
- // 1. [meta block: filter]
- // 2. [meta block: stats]
- // 3. [metaindex block]
- if (ok()) {
- // We use `BytewiseComparator` as the comparator for meta block.
- BlockBuilder meta_index_block(
- r->options.block_restart_interval,
- BytewiseComparator()
- );
- // Key: meta block name
- // Value: block handle to that meta block
- BytewiseSortedMap meta_block_handles;
-
- // Write filter block.
- if (r->filter_block != nullptr) {
- // Add mapping from "<filter_block_prefix>.Name" to location
- // of filter data.
- std::string key = BlockBasedTable::kFilterBlockPrefix;
- key.append(r->options.filter_policy->Name());
- std::string handle_encoding;
- filter_block_handle.EncodeTo(&handle_encoding);
- meta_block_handles.insert(
- std::make_pair(key, handle_encoding)
- );
- }
-
- // Write stats block.
- {
- BlockBuilder stats_block(
- r->options.block_restart_interval,
- BytewiseComparator()
- );
-
- BytewiseSortedMap stats;
-
- // Add basic stats
- AddStats(stats, BlockBasedTableStatsNames::kRawKeySize, r->raw_key_size);
- AddStats(stats, BlockBasedTableStatsNames::kRawValueSize,
- r->raw_value_size);
- AddStats(stats, BlockBasedTableStatsNames::kDataSize, r->data_size);
- AddStats(
- stats,
- BlockBasedTableStatsNames::kIndexSize,
- r->index_block.CurrentSizeEstimate() + kBlockTrailerSize
- );
- AddStats(stats, BlockBasedTableStatsNames::kNumEntries, r->num_entries);
- AddStats(stats, BlockBasedTableStatsNames::kNumDataBlocks,
- r->num_data_blocks);
- if (r->filter_block != nullptr) {
- stats.insert(std::make_pair(
- BlockBasedTableStatsNames::kFilterPolicy,
- r->options.filter_policy->Name()
- ));
- }
-
- for (auto collector : r->options.table_stats_collectors) {
- TableStats::UserCollectedStats user_collected_stats;
- Status s =
- collector->Finish(&user_collected_stats);
-
- if (!s.ok()) {
- LogStatsCollectionError(
- r->options.info_log.get(),
- "Finish", /* method */
- collector->Name()
- );
- } else {
- stats.insert(
- user_collected_stats.begin(),
- user_collected_stats.end()
- );
- }
- }
-
- for (const auto& stat : stats) {
- stats_block.Add(stat.first, stat.second);
- }
-
- BlockHandle stats_block_handle;
- WriteBlock(&stats_block, &stats_block_handle);
-
- std::string handle_encoding;
- stats_block_handle.EncodeTo(&handle_encoding);
- meta_block_handles.insert(
- std::make_pair(BlockBasedTable::kStatsBlock, handle_encoding)
- );
- } // end of stats block writing
-
- for (const auto& metablock : meta_block_handles) {
- meta_index_block.Add(metablock.first, metablock.second);
- }
-
- WriteBlock(&meta_index_block, &metaindex_block_handle);
- } // meta blocks and metaindex block.
-
- // Write index block
- if (ok()) {
- WriteBlock(&r->index_block, &index_block_handle);
- }
-
- // Write footer
- if (ok()) {
- Footer footer;
- footer.set_metaindex_handle(metaindex_block_handle);
- footer.set_index_handle(index_block_handle);
- std::string footer_encoding;
- footer.EncodeTo(&footer_encoding);
- r->status = r->file->Append(footer_encoding);
- if (r->status.ok()) {
- r->offset += footer_encoding.size();
- }
- }
- return r->status;
-}
-
-void BlockBasedTableBuilder::Abandon() {
- Rep* r = rep_;
- assert(!r->closed);
- r->closed = true;
-}
-
-uint64_t BlockBasedTableBuilder::NumEntries() const {
- return rep_->num_entries;
-}
-
-uint64_t BlockBasedTableBuilder::FileSize() const {
- return rep_->offset;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <stdint.h>
-#include "rocksdb/options.h"
-#include "rocksdb/status.h"
-#include "rocksdb/table.h"
-
-namespace rocksdb {
-
-class BlockBuilder;
-class BlockHandle;
-class WritableFile;
-
-
-class BlockBasedTableBuilder : public TableBuilder {
- public:
- // Create a builder that will store the contents of the table it is
- // building in *file. Does not close the file. It is up to the
- // caller to close the file after calling Finish().
- BlockBasedTableBuilder(const Options& options, WritableFile* file,
- CompressionType compression_type);
-
- // REQUIRES: Either Finish() or Abandon() has been called.
- ~BlockBasedTableBuilder();
-
- // Add key,value to the table being constructed.
- // REQUIRES: key is after any previously added key according to comparator.
- // REQUIRES: Finish(), Abandon() have not been called
- void Add(const Slice& key, const Slice& value) override;
-
- // Return non-ok iff some error has been detected.
- Status status() const override;
-
- // Finish building the table. Stops using the file passed to the
- // constructor after this function returns.
- // REQUIRES: Finish(), Abandon() have not been called
- Status Finish() override;
-
- // Indicate that the contents of this builder should be abandoned. Stops
- // using the file passed to the constructor after this function returns.
- // If the caller is not going to call Finish(), it must call Abandon()
- // before destroying this builder.
- // REQUIRES: Finish(), Abandon() have not been called
- void Abandon() override;
-
- // Number of calls to Add() so far.
- uint64_t NumEntries() const override;
-
- // Size of the file generated so far. If invoked after a successful
- // Finish() call, returns the size of the final generated file.
- uint64_t FileSize() const override;
-
- private:
- bool ok() const { return status().ok(); }
- void WriteBlock(BlockBuilder* block, BlockHandle* handle);
- void WriteRawBlock(const Slice& data, CompressionType, BlockHandle* handle);
- Status InsertBlockInCache(const Slice& block_contents,
- const CompressionType type, const BlockHandle* handle);
- struct Rep;
- Rep* rep_;
-
- // Advanced operation: flush any buffered key/value pairs to file.
- // Can be used to ensure that two adjacent entries never live in
- // the same data block. Most clients should not need to use this method.
- // REQUIRES: Finish(), Abandon() have not been called
- void Flush();
-
- // No copying allowed
- BlockBasedTableBuilder(const BlockBasedTableBuilder&) = delete;
- void operator=(const BlockBasedTableBuilder&) = delete;
-};
-
-} // namespace rocksdb
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-
-#include "table/block_based_table_factory.h"
-
-#include <memory>
-#include <stdint.h>
-#include "table/block_based_table_builder.h"
-#include "table/block_based_table_reader.h"
-#include "port/port.h"
-
-namespace rocksdb {
-
-Status BlockBasedTableFactory::GetTableReader(
- const Options& options, const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file, uint64_t file_size,
- unique_ptr<TableReader>* table_reader) const {
- return BlockBasedTable::Open(options, soptions, std::move(file), file_size,
- table_reader);
-}
-
-TableBuilder* BlockBasedTableFactory::GetTableBuilder(
- const Options& options, WritableFile* file,
- CompressionType compression_type) const {
- return new BlockBasedTableBuilder(options, file, compression_type);
-}
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <memory>
-#include <stdint.h>
-
-#include "rocksdb/table.h"
-
-namespace rocksdb {
-
-struct Options;
-struct EnvOptions;
-
-using std::unique_ptr;
-class Status;
-class RandomAccessFile;
-class WritableFile;
-class Table;
-class TableBuilder;
-class BlockBasedTable;
-class BlockBasedTableBuilder;
-
-class BlockBasedTableFactory: public TableFactory {
-public:
- ~BlockBasedTableFactory() {
- }
- BlockBasedTableFactory() {
- }
- const char* Name() const override {
- return "BlockBasedTable";
- }
- Status GetTableReader(const Options& options, const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file,
- uint64_t file_size,
- unique_ptr<TableReader>* table_reader) const override;
-
- TableBuilder* GetTableBuilder(const Options& options, WritableFile* file,
- CompressionType compression_type) const
- override;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/block_based_table_reader.h"
-
-#include "db/dbformat.h"
-
-#include "rocksdb/comparator.h"
-#include "rocksdb/env.h"
-#include "rocksdb/filter_policy.h"
-#include "rocksdb/options.h"
-#include "rocksdb/statistics.h"
-#include "rocksdb/table.h"
-
-#include "table/block.h"
-#include "table/filter_block.h"
-#include "table/format.h"
-#include "table/two_level_iterator.h"
-
-#include "util/coding.h"
-#include "util/perf_context_imp.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-// The longest the prefix of the cache key used to identify blocks can be.
-// We are using the fact that we know for Posix files the unique ID is three
-// varints.
-const size_t kMaxCacheKeyPrefixSize = kMaxVarint64Length*3+1;
-using std::unique_ptr;
-
-struct BlockBasedTable::Rep {
- Rep(const EnvOptions& storage_options) :
- soptions(storage_options) {
- }
-
- Options options;
- const EnvOptions& soptions;
- Status status;
- unique_ptr<RandomAccessFile> file;
- char cache_key_prefix[kMaxCacheKeyPrefixSize];
- size_t cache_key_prefix_size;
- char compressed_cache_key_prefix[kMaxCacheKeyPrefixSize];
- size_t compressed_cache_key_prefix_size;
-
- // Handle to metaindex_block: saved from footer
- BlockHandle metaindex_handle;
- // Handle to index: saved from footer
- BlockHandle index_handle;
- // index_block will be populated and used only when options.block_cache is
- // NULL; otherwise we will get the index block via the block cache.
- unique_ptr<Block> index_block;
- unique_ptr<FilterBlockReader> filter;
-
- TableStats table_stats;
-};
-
-BlockBasedTable::~BlockBasedTable() {
- delete rep_;
-}
-
-// CachableEntry represents the entries that *may* be fetched from block cache.
-// field `value` is the item we want to get.
-// field `cache_handle` is the cache handle to the block cache. If the value
-// was not read from cache, `cache_handle` will be nullptr.
-template <class TValue>
-struct BlockBasedTable::CachableEntry {
- CachableEntry(TValue* value, Cache::Handle* cache_handle)
- : value(value)
- , cache_handle(cache_handle) {
- }
- CachableEntry(): CachableEntry(nullptr, nullptr) { }
- void Release(Cache* cache) {
- if (cache_handle) {
- cache->Release(cache_handle);
- value = nullptr;
- cache_handle = nullptr;
- }
- }
-
- TValue* value = nullptr;
- // if the entry is from the cache, cache_handle will be populated.
- Cache::Handle* cache_handle = nullptr;
-};
-
-// Helper function to setup the cache key's prefix for the Table.
-void BlockBasedTable::SetupCacheKeyPrefix(Rep* rep) {
- assert(kMaxCacheKeyPrefixSize >= 10);
- rep->cache_key_prefix_size = 0;
- rep->compressed_cache_key_prefix_size = 0;
- if (rep->options.block_cache != nullptr) {
- GenerateCachePrefix(rep->options.block_cache, rep->file.get(),
- &rep->cache_key_prefix[0],
- &rep->cache_key_prefix_size);
- }
- if (rep->options.block_cache_compressed != nullptr) {
- GenerateCachePrefix(rep->options.block_cache_compressed, rep->file.get(),
- &rep->compressed_cache_key_prefix[0],
- &rep->compressed_cache_key_prefix_size);
- }
-}
-
-void BlockBasedTable::GenerateCachePrefix(shared_ptr<Cache> cc,
- RandomAccessFile* file, char* buffer, size_t* size) {
-
- // generate an id from the file
- *size = file->GetUniqueId(buffer, kMaxCacheKeyPrefixSize);
-
- // If the prefix wasn't generated or was too long,
- // create one from the cache.
- if (*size == 0) {
- char* end = EncodeVarint64(buffer, cc->NewId());
- *size = static_cast<size_t>(end - buffer);
- }
-}
-
-void BlockBasedTable::GenerateCachePrefix(shared_ptr<Cache> cc,
- WritableFile* file, char* buffer, size_t* size) {
-
- // generate an id from the file
- *size = file->GetUniqueId(buffer, kMaxCacheKeyPrefixSize);
-
- // If the prefix wasn't generated or was too long,
- // create one from the cache.
- if (*size == 0) {
- char* end = EncodeVarint64(buffer, cc->NewId());
- *size = static_cast<size_t>(end - buffer);
- }
-}
-
-namespace { // anonymous namespace, not visible externally
-
-// Read the block identified by "handle" from "file".
-// The only relevant option is options.verify_checksums for now.
-// Set *didIO to true if didIO is not null.
-// On failure return non-OK.
-// On success fill *result and return OK - caller owns *result
-Status ReadBlockFromFile(
- RandomAccessFile* file,
- const ReadOptions& options,
- const BlockHandle& handle,
- Block** result,
- Env* env,
- bool* didIO = nullptr,
- bool do_uncompress = true) {
- BlockContents contents;
- Status s = ReadBlockContents(file, options, handle, &contents,
- env, do_uncompress);
- if (s.ok()) {
- *result = new Block(contents);
- }
-
- if (didIO) {
- *didIO = true;
- }
- return s;
-}
-
-void DeleteBlock(void* arg, void* ignored) {
- delete reinterpret_cast<Block*>(arg);
-}
-
-void DeleteCachedBlock(const Slice& key, void* value) {
- Block* block = reinterpret_cast<Block*>(value);
- delete block;
-}
-
-void DeleteCachedFilter(const Slice& key, void* value) {
- auto filter = reinterpret_cast<FilterBlockReader*>(value);
- delete filter;
-}
-
-void ReleaseBlock(void* arg, void* h) {
- Cache* cache = reinterpret_cast<Cache*>(arg);
- Cache::Handle* handle = reinterpret_cast<Cache::Handle*>(h);
- cache->Release(handle);
-}
-
-Slice GetCacheKey(const char* cache_key_prefix,
- size_t cache_key_prefix_size,
- const BlockHandle& handle,
- char* cache_key) {
- assert(cache_key != nullptr);
- assert(cache_key_prefix_size != 0);
- assert(cache_key_prefix_size <= kMaxCacheKeyPrefixSize);
- memcpy(cache_key, cache_key_prefix, cache_key_prefix_size);
- char* end = EncodeVarint64(cache_key + cache_key_prefix_size,
- handle.offset());
- return Slice(cache_key, static_cast<size_t>(end - cache_key));
-}
-
-Cache::Handle* GetFromBlockCache(
- Cache* block_cache,
- const Slice& key,
- Tickers block_cache_miss_ticker,
- Tickers block_cache_hit_ticker,
- std::shared_ptr<Statistics> statistics) {
- auto cache_handle = block_cache->Lookup(key);
- if (cache_handle != nullptr) {
- BumpPerfCount(&perf_context.block_cache_hit_count);
- // overall cache hit
- RecordTick(statistics, BLOCK_CACHE_HIT);
- // block-type specific cache hit
- RecordTick(statistics, block_cache_hit_ticker);
- } else {
- // overall cache miss
- RecordTick(statistics, BLOCK_CACHE_MISS);
- // block-type specific cache miss
- RecordTick(statistics, block_cache_miss_ticker);
- }
-
- return cache_handle;
-}
-
-} // end of anonymous namespace
-
-Status BlockBasedTable::Open(const Options& options,
- const EnvOptions& soptions,
- unique_ptr<RandomAccessFile> && file,
- uint64_t size,
- unique_ptr<TableReader>* table_reader) {
- table_reader->reset();
- if (size < Footer::kEncodedLength) {
- return Status::InvalidArgument("file is too short to be an sstable");
- }
-
- char footer_space[Footer::kEncodedLength];
- Slice footer_input;
- Status s = file->Read(size - Footer::kEncodedLength, Footer::kEncodedLength,
- &footer_input, footer_space);
- if (!s.ok()) return s;
-
- // Check that we actually read the whole footer from the file. It may be
- // that size isn't correct.
- if (footer_input.size() != Footer::kEncodedLength) {
- return Status::InvalidArgument("file is too short to be an sstable");
- }
-
- Footer footer;
- s = footer.DecodeFrom(&footer_input);
- if (!s.ok()) return s;
-
- // We've successfully read the footer and the index block: we're
- // ready to serve requests.
- Rep* rep = new BlockBasedTable::Rep(soptions);
- rep->options = options;
- rep->file = std::move(file);
- rep->metaindex_handle = footer.metaindex_handle();
- rep->index_handle = footer.index_handle();
- SetupCacheKeyPrefix(rep);
- unique_ptr<BlockBasedTable> new_table(new BlockBasedTable(rep));
-
- // Read meta index
- std::unique_ptr<Block> meta;
- std::unique_ptr<Iterator> meta_iter;
- s = ReadMetaBlock(rep, &meta, &meta_iter);
-
- // Read the stats
- meta_iter->Seek(kStatsBlock);
- if (meta_iter->Valid() && meta_iter->key() == Slice(kStatsBlock)) {
- s = meta_iter->status();
- if (s.ok()) {
- s = ReadStats(meta_iter->value(), rep, &rep->table_stats);
- }
-
- if (!s.ok()) {
- auto err_msg =
- "[Warning] Encountered error while reading data from stats block " +
- s.ToString();
- Log(rep->options.info_log, err_msg.c_str());
- }
- }
-
- // Initialize index/filter blocks. If block cache is not specified,
- // these blocks will be kept in member variables in Rep, which will
- // reside in the memory as long as this table object is alive; otherwise
- // they will be added to block cache.
- if (!options.block_cache) {
- Block* index_block = nullptr;
- // TODO: we never really verify check sum for index block
- s = ReadBlockFromFile(
- rep->file.get(),
- ReadOptions(),
- footer.index_handle(),
- &index_block,
- options.env
- );
-
- if (s.ok()) {
- assert(index_block->compressionType() == kNoCompression);
- rep->index_block.reset(index_block);
-
- // Set index block
- if (rep->options.filter_policy) {
- std::string key = kFilterBlockPrefix;
- key.append(rep->options.filter_policy->Name());
- meta_iter->Seek(key);
-
- if (meta_iter->Valid() && meta_iter->key() == Slice(key)) {
- rep->filter.reset(ReadFilter(meta_iter->value(), rep));
- }
- }
- } else {
- delete index_block;
- }
- } else {
- // Call IndexBlockReader() to implicitly add index to the block_cache
- unique_ptr<Iterator> iter(
- new_table->IndexBlockReader(ReadOptions())
- );
- s = iter->status();
-
- if (s.ok()) {
- // Call GetFilter() to implicitly add filter to the block_cache
- auto filter_entry = new_table->GetFilter();
- filter_entry.Release(options.block_cache.get());
- }
- }
-
- if (s.ok()) {
- *table_reader = std::move(new_table);
- }
-
- return s;
-}
-
-void BlockBasedTable::SetupForCompaction() {
- switch (rep_->options.access_hint_on_compaction_start) {
- case Options::NONE:
- break;
- case Options::NORMAL:
- rep_->file->Hint(RandomAccessFile::NORMAL);
- break;
- case Options::SEQUENTIAL:
- rep_->file->Hint(RandomAccessFile::SEQUENTIAL);
- break;
- case Options::WILLNEED:
- rep_->file->Hint(RandomAccessFile::WILLNEED);
- break;
- default:
- assert(false);
- }
- compaction_optimized_ = true;
-}
-
-TableStats& BlockBasedTable::GetTableStats() {
- return rep_->table_stats;
-}
-
-// Load the meta-block from the file. On success, return the loaded meta block
-// and its iterator.
-Status BlockBasedTable::ReadMetaBlock(
- Rep* rep,
- std::unique_ptr<Block>* meta_block,
- std::unique_ptr<Iterator>* iter) {
- // TODO(sanjay): Skip this if footer.metaindex_handle() size indicates
- // it is an empty block.
- // TODO: we never really verify check sum for meta index block
- Block* meta = nullptr;
- Status s = ReadBlockFromFile(
- rep->file.get(),
- ReadOptions(),
- rep->metaindex_handle,
- &meta,
- rep->options.env);
-
- if (!s.ok()) {
- auto err_msg =
- "[Warning] Encountered error while reading data from stats block " +
- s.ToString();
- Log(rep->options.info_log, "%s", err_msg.c_str());
- }
- if (!s.ok()) {
- delete meta;
- return s;
- }
-
- meta_block->reset(meta);
- // meta block uses bytewise comparator.
- iter->reset(meta->NewIterator(BytewiseComparator()));
- return Status::OK();
-}
-
-FilterBlockReader* BlockBasedTable::ReadFilter (
- const Slice& filter_handle_value,
- BlockBasedTable::Rep* rep,
- size_t* filter_size) {
- Slice v = filter_handle_value;
- BlockHandle filter_handle;
- if (!filter_handle.DecodeFrom(&v).ok()) {
- return nullptr;
- }
-
- // TODO: We might want to unify with ReadBlockFromFile() if we start
- // requiring checksum verification in Table::Open.
- ReadOptions opt;
- BlockContents block;
- if (!ReadBlockContents(rep->file.get(), opt, filter_handle, &block,
- rep->options.env, false).ok()) {
- return nullptr;
- }
-
- if (filter_size) {
- *filter_size = block.data.size();
- }
-
- return new FilterBlockReader(
- rep->options, block.data, block.heap_allocated);
-}
-
-Status BlockBasedTable::ReadStats(
- const Slice& handle_value, Rep* rep, TableStats* table_stats) {
- assert(table_stats);
-
- Slice v = handle_value;
- BlockHandle handle;
- if (!handle.DecodeFrom(&v).ok()) {
- return Status::InvalidArgument("Failed to decode stats block handle");
- }
-
- BlockContents block_contents;
- Status s = ReadBlockContents(
- rep->file.get(),
- ReadOptions(),
- handle,
- &block_contents,
- rep->options.env,
- false
- );
-
- if (!s.ok()) {
- return s;
- }
-
- Block stats_block(block_contents);
- std::unique_ptr<Iterator> iter(
- stats_block.NewIterator(BytewiseComparator())
- );
-
- // All pre-defined stats of type uint64_t
- std::unordered_map<std::string, uint64_t*> predefined_uint64_stats = {
- { BlockBasedTableStatsNames::kDataSize, &table_stats->data_size },
- { BlockBasedTableStatsNames::kIndexSize, &table_stats->index_size },
- { BlockBasedTableStatsNames::kRawKeySize, &table_stats->raw_key_size },
- { BlockBasedTableStatsNames::kRawValueSize, &table_stats->raw_value_size },
- { BlockBasedTableStatsNames::kNumDataBlocks,
- &table_stats->num_data_blocks },
- { BlockBasedTableStatsNames::kNumEntries, &table_stats->num_entries },
- };
-
- std::string last_key;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- s = iter->status();
- if (!s.ok()) {
- break;
- }
-
- auto key = iter->key().ToString();
- // stats block is strictly sorted with no duplicate key.
- assert(
- last_key.empty() ||
- BytewiseComparator()->Compare(key, last_key) > 0
- );
- last_key = key;
-
- auto raw_val = iter->value();
- auto pos = predefined_uint64_stats.find(key);
-
- if (pos != predefined_uint64_stats.end()) {
- // handle predefined rocksdb stats
- uint64_t val;
- if (!GetVarint64(&raw_val, &val)) {
- // skip malformed value
- auto error_msg =
- "[Warning] detect malformed value in stats meta-block:"
- "\tkey: " + key + "\tval: " + raw_val.ToString();
- Log(rep->options.info_log, "%s", error_msg.c_str());
- continue;
- }
- *(pos->second) = val;
- } else if (key == BlockBasedTableStatsNames::kFilterPolicy) {
- table_stats->filter_policy_name = raw_val.ToString();
- } else {
- // handle user-collected
- table_stats->user_collected_stats.insert(
- std::make_pair(key, raw_val.ToString())
- );
- }
- }
-
- return s;
-}
-
-Status BlockBasedTable::GetBlock(
- const BlockBasedTable* table,
- const BlockHandle& handle,
- const ReadOptions& options,
- const bool for_compaction,
- const Tickers block_cache_miss_ticker,
- const Tickers block_cache_hit_ticker,
- bool* didIO,
- CachableEntry<Block>* entry) {
- bool no_io = options.read_tier == kBlockCacheTier;
- Cache* block_cache = table->rep_->options.block_cache.get();
- auto statistics = table->rep_->options.statistics;
- Status s;
-
- if (block_cache != nullptr) {
- char cache_key[kMaxCacheKeyPrefixSize + kMaxVarint64Length];
- auto key = GetCacheKey(
- table->rep_->cache_key_prefix,
- table->rep_->cache_key_prefix_size,
- handle,
- cache_key
- );
-
- entry->cache_handle = GetFromBlockCache(
- block_cache,
- key,
- block_cache_miss_ticker,
- block_cache_hit_ticker,
- table->rep_->options.statistics
- );
-
- if (entry->cache_handle != nullptr) {
- entry->value =
- reinterpret_cast<Block*>(block_cache->Value(entry->cache_handle));
- } else if (no_io) {
- // Did not find in block_cache and can't do IO
- return Status::Incomplete("no blocking io");
- } else {
- Histograms histogram = for_compaction ?
- READ_BLOCK_COMPACTION_MICROS : READ_BLOCK_GET_MICROS;
- {
- // block for stop watch
- StopWatch sw(table->rep_->options.env, statistics, histogram);
- s = ReadBlockFromFile(
- table->rep_->file.get(),
- options,
- handle,
- &entry->value,
- table->rep_->options.env,
- didIO
- );
- }
- if (s.ok()) {
- if (options.fill_cache && entry->value->isCachable()) {
- entry->cache_handle = block_cache->Insert(
- key, entry->value, entry->value->size(), &DeleteCachedBlock);
- RecordTick(statistics, BLOCK_CACHE_ADD);
- }
- }
- }
- } else if (no_io) {
- // Could not read from block_cache and can't do IO
- return Status::Incomplete("no blocking io");
- } else {
- s = ReadBlockFromFile(
- table->rep_->file.get(),
- options,
- handle,
- &entry->value,
- table->rep_->options.env,
- didIO
- );
- }
-
- return s;
-}
-
-// Convert an index iterator value (i.e., an encoded BlockHandle)
-// into an iterator over the contents of the corresponding block.
-Iterator* BlockBasedTable::BlockReader(void* arg,
- const ReadOptions& options,
- const Slice& index_value,
- bool* didIO,
- bool for_compaction) {
- const bool no_io = (options.read_tier == kBlockCacheTier);
- BlockBasedTable* table = reinterpret_cast<BlockBasedTable*>(arg);
- Cache* block_cache = table->rep_->options.block_cache.get();
- Cache* block_cache_compressed = table->rep_->options.
- block_cache_compressed.get();
- std::shared_ptr<Statistics> statistics = table->rep_->options.statistics;
- Block* block = nullptr;
- Block* cblock = nullptr;
- Cache::Handle* cache_handle = nullptr;
- Cache::Handle* compressed_cache_handle = nullptr;
-
- BlockHandle handle;
- Slice input = index_value;
- Status s = handle.DecodeFrom(&input);
- // We intentionally allow extra stuff in index_value so that we
- // can add more features in the future.
-
- if (!s.ok()) {
- return NewErrorIterator(s);
- }
-
- if (block_cache != nullptr || block_cache_compressed != nullptr) {
- char cache_key[kMaxCacheKeyPrefixSize + kMaxVarint64Length];
- char compressed_cache_key[kMaxCacheKeyPrefixSize + kMaxVarint64Length];
- Slice key, /* key to the block cache */
- ckey /* key to the compressed block cache */ ;
-
- // create key for block cache
- if (block_cache != nullptr) {
- key = GetCacheKey(
- table->rep_->cache_key_prefix,
- table->rep_->cache_key_prefix_size,
- handle,
- cache_key
- );
- }
-
- if (block_cache_compressed != nullptr) {
- ckey = GetCacheKey(
- table->rep_->compressed_cache_key_prefix,
- table->rep_->compressed_cache_key_prefix_size,
- handle,
- compressed_cache_key
- );
- }
-
- // Lookup uncompressed cache first
- if (block_cache != nullptr) {
- assert(!key.empty());
- cache_handle = block_cache->Lookup(key);
- if (cache_handle != nullptr) {
- block = reinterpret_cast<Block*>(block_cache->Value(cache_handle));
- RecordTick(statistics, BLOCK_CACHE_HIT);
- RecordTick(statistics, BLOCK_CACHE_DATA_HIT);
- } else {
- RecordTick(statistics, BLOCK_CACHE_MISS);
- RecordTick(statistics, BLOCK_CACHE_DATA_MISS);
- }
- }
-
- // If not found in uncompressed cache, lookup compressed cache
- if (block == nullptr && block_cache_compressed != nullptr) {
- assert(!ckey.empty());
- compressed_cache_handle = block_cache_compressed->Lookup(ckey);
-
- // if we found in the compressed cache, then uncompress and
- // insert into uncompressed cache
- if (compressed_cache_handle != nullptr) {
- // found compressed block
- cblock = reinterpret_cast<Block*>(block_cache_compressed->
- Value(compressed_cache_handle));
- assert(cblock->compressionType() != kNoCompression);
-
- // Retrieve the uncompressed contents into a new buffer
- BlockContents contents;
- s = UncompressBlockContents(cblock->data(), cblock->size(),
- &contents);
-
- // Insert uncompressed block into block cache
- if (s.ok()) {
- block = new Block(contents); // uncompressed block
- assert(block->compressionType() == kNoCompression);
- if (block_cache != nullptr && block->isCachable() &&
- options.fill_cache) {
- cache_handle = block_cache->Insert(key, block, block->size(),
- &DeleteCachedBlock);
- assert(reinterpret_cast<Block*>(block_cache->Value(cache_handle))
- == block);
- }
- }
- // Release hold on compressed cache entry
- block_cache_compressed->Release(compressed_cache_handle);
- RecordTick(statistics, BLOCK_CACHE_COMPRESSED_HIT);
- }
- }
-
- if (block != nullptr) {
- BumpPerfCount(&perf_context.block_cache_hit_count);
- } else if (no_io) {
- // Did not find in block_cache and can't do IO
- return NewErrorIterator(Status::Incomplete("no blocking io"));
- } else {
- Histograms histogram = for_compaction ?
- READ_BLOCK_COMPACTION_MICROS : READ_BLOCK_GET_MICROS;
- { // block for stop watch
- StopWatch sw(table->rep_->options.env, statistics, histogram);
- s = ReadBlockFromFile(
- table->rep_->file.get(),
- options,
- handle,
- &cblock,
- table->rep_->options.env,
- didIO,
- block_cache_compressed == nullptr
- );
- }
- if (s.ok()) {
- assert(cblock->compressionType() == kNoCompression ||
- block_cache_compressed != nullptr);
-
- // Retrieve the uncompressed contents into a new buffer
- BlockContents contents;
- if (cblock->compressionType() != kNoCompression) {
- s = UncompressBlockContents(cblock->data(), cblock->size(),
- &contents);
- }
- if (s.ok()) {
- if (cblock->compressionType() != kNoCompression) {
- block = new Block(contents); // uncompressed block
- } else {
- block = cblock;
- cblock = nullptr;
- }
- if (block->isCachable() && options.fill_cache) {
- // Insert compressed block into compressed block cache.
- // Release the hold on the compressed cache entry immediately.
- if (block_cache_compressed != nullptr && cblock != nullptr) {
- compressed_cache_handle = block_cache_compressed->Insert(
- ckey, cblock, cblock->size(), &DeleteCachedBlock);
- block_cache_compressed->Release(compressed_cache_handle);
- RecordTick(statistics, BLOCK_CACHE_COMPRESSED_MISS);
- cblock = nullptr;
- }
- // insert into uncompressed block cache
- assert((block->compressionType() == kNoCompression));
- if (block_cache != nullptr) {
- cache_handle = block_cache->Insert(
- key, block, block->size(), &DeleteCachedBlock);
- RecordTick(statistics, BLOCK_CACHE_ADD);
- assert(reinterpret_cast<Block*>(block_cache->Value(
- cache_handle))== block);
- }
- }
- }
- }
- if (cblock != nullptr) {
- delete cblock;
- }
- }
- } else if (no_io) {
- // Could not read from block_cache and can't do IO
- return NewErrorIterator(Status::Incomplete("no blocking io"));
- } else {
- s = ReadBlockFromFile(
- table->rep_->file.get(),
- options,
- handle,
- &block,
- table->rep_->options.env,
- didIO
- );
- }
-
- Iterator* iter;
- if (block != nullptr) {
- iter = block->NewIterator(table->rep_->options.comparator);
- if (cache_handle != nullptr) {
- iter->RegisterCleanup(&ReleaseBlock, block_cache, cache_handle);
- } else {
- iter->RegisterCleanup(&DeleteBlock, block, nullptr);
- }
- } else {
- iter = NewErrorIterator(s);
- }
- return iter;
-}
-
-BlockBasedTable::CachableEntry<FilterBlockReader>
-BlockBasedTable::GetFilter(bool no_io) const {
- if (!rep_->options.filter_policy || !rep_->options.block_cache) {
- return {rep_->filter.get(), nullptr};
- }
-
- // Fetching from the cache
- Cache* block_cache = rep_->options.block_cache.get();
- char cache_key[kMaxCacheKeyPrefixSize + kMaxVarint64Length];
- auto key = GetCacheKey(
- rep_->cache_key_prefix,
- rep_->cache_key_prefix_size,
- rep_->metaindex_handle,
- cache_key
- );
-
- auto cache_handle = GetFromBlockCache(
- block_cache,
- key,
- BLOCK_CACHE_FILTER_MISS,
- BLOCK_CACHE_FILTER_HIT,
- rep_->options.statistics
- );
-
- FilterBlockReader* filter = nullptr;
- if (cache_handle != nullptr) {
- filter = reinterpret_cast<FilterBlockReader*>(
- block_cache->Value(cache_handle));
- } else if (no_io) {
- // Do not invoke any io.
- return CachableEntry<FilterBlockReader>();
- } else {
- size_t filter_size = 0;
- std::unique_ptr<Block> meta;
- std::unique_ptr<Iterator> iter;
- auto s = ReadMetaBlock(rep_, &meta, &iter);
-
- if (s.ok()) {
- std::string filter_block_key = kFilterBlockPrefix;
- filter_block_key.append(rep_->options.filter_policy->Name());
- iter->Seek(filter_block_key);
-
- if (iter->Valid() && iter->key() == Slice(filter_block_key)) {
- filter = ReadFilter(iter->value(), rep_, &filter_size);
- assert(filter);
- assert(filter_size > 0);
-
- cache_handle = block_cache->Insert(
- key, filter, filter_size, &DeleteCachedFilter);
- RecordTick(rep_->options.statistics, BLOCK_CACHE_ADD);
- }
- }
- }
-
- return { filter, cache_handle };
-}
-
-// Get the iterator from the index block.
-Iterator* BlockBasedTable::IndexBlockReader(const ReadOptions& options) const {
- if (rep_->index_block) {
- assert (!rep_->options.block_cache);
- return rep_->index_block->NewIterator(rep_->options.comparator);
- }
-
- // get index block from cache
- assert (rep_->options.block_cache);
- bool didIO = false;
- CachableEntry<Block> entry;
-
- auto s = GetBlock(
- this,
- rep_->index_handle,
- options,
- false, /* for compaction */
- BLOCK_CACHE_INDEX_MISS,
- BLOCK_CACHE_INDEX_HIT,
- &didIO,
- &entry
- );
-
- Iterator* iter;
- if (entry.value != nullptr) {
- iter = entry.value->NewIterator(rep_->options.comparator);
- if (entry.cache_handle) {
- iter->RegisterCleanup(
- &ReleaseBlock, rep_->options.block_cache.get(), entry.cache_handle
- );
- } else {
- iter->RegisterCleanup(&DeleteBlock, entry.value, nullptr);
- }
- } else {
- iter = NewErrorIterator(s);
- }
- return iter;
-}
-
-Iterator* BlockBasedTable::BlockReader(void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- const Slice& index_value,
- bool for_compaction) {
- return BlockReader(arg, options, index_value, nullptr, for_compaction);
-}
-
-// This will be broken if the user specifies an unusual implementation
-// of Options.comparator, or if the user specifies an unusual
-// definition of prefixes in Options.filter_policy. In particular, we
-// require the following three properties:
-//
-// 1) key.starts_with(prefix(key))
-// 2) Compare(prefix(key), key) <= 0.
-// 3) If Compare(key1, key2) <= 0, then Compare(prefix(key1), prefix(key2)) <= 0
-//
-// Otherwise, this method guarantees no I/O will be incurred.
-//
-// REQUIRES: this method shouldn't be called while the DB lock is held.
-bool BlockBasedTable::PrefixMayMatch(const Slice& internal_prefix) {
- bool may_match = true;
- Status s;
-
- if (!rep_->options.filter_policy) {
- return true;
- }
-
- // To prevent any io operation in this method, we set `read_tier` to make
- // sure we always read index or filter only when they have already been
- // loaded to memory.
- ReadOptions no_io_read_options;
- no_io_read_options.read_tier = kBlockCacheTier;
- unique_ptr<Iterator> iiter(
- IndexBlockReader(no_io_read_options)
- );
- iiter->Seek(internal_prefix);
-
- if (!iiter->Valid()) {
- // we're past end of file
- // if it's incomplete, it means that we avoided I/O
- // and we're not really sure that we're past the end
- // of the file
- may_match = iiter->status().IsIncomplete();
- } else if (ExtractUserKey(iiter->key()).starts_with(
- ExtractUserKey(internal_prefix))) {
- // we need to check for this subtle case because our only
- // guarantee is that "the key is a string >= last key in that data
- // block" according to the doc/table_format.txt spec.
- //
- // Suppose iiter->key() starts with the desired prefix; it is not
- // necessarily the case that the corresponding data block will
- // contain the prefix, since iiter->key() need not be in the
- // block. However, the next data block may contain the prefix, so
- // we return true to play it safe.
- may_match = true;
- } else {
- // iiter->key() does NOT start with the desired prefix. Because
- // Seek() finds the first key that is >= the seek target, this
- // means that iiter->key() > prefix. Thus, any data blocks coming
- // after the data block corresponding to iiter->key() cannot
- // possibly contain the key. Thus, the corresponding data block
- // is the only one which could potentially contain the prefix.
- Slice handle_value = iiter->value();
- BlockHandle handle;
- s = handle.DecodeFrom(&handle_value);
- assert(s.ok());
- auto filter_entry = GetFilter(true /* no io */);
- may_match =
- filter_entry.value == nullptr ||
- filter_entry.value->PrefixMayMatch(handle.offset(), internal_prefix);
- filter_entry.Release(rep_->options.block_cache.get());
- }
-
- RecordTick(rep_->options.statistics, BLOOM_FILTER_PREFIX_CHECKED);
- if (!may_match) {
- RecordTick(rep_->options.statistics, BLOOM_FILTER_PREFIX_USEFUL);
- }
-
- return may_match;
-}
-
-Iterator* BlockBasedTable::NewIterator(const ReadOptions& options) {
- if (options.prefix) {
- InternalKey internal_prefix(*options.prefix, 0, kTypeValue);
- if (!PrefixMayMatch(internal_prefix.Encode())) {
- // nothing in this file can match the prefix, so we should not
- // bother doing I/O to this file when iterating.
- return NewEmptyIterator();
- }
- }
-
- return NewTwoLevelIterator(
- IndexBlockReader(options),
- &BlockBasedTable::BlockReader,
- const_cast<BlockBasedTable*>(this),
- options,
- rep_->soptions
- );
-}
-
-Status BlockBasedTable::Get(
- const ReadOptions& readOptions,
- const Slice& key,
- void* handle_context,
- bool (*result_handler)(void* handle_context, const Slice& k,
- const Slice& v, bool didIO),
- void (*mark_key_may_exist_handler)(void* handle_context)) {
- Status s;
- Iterator* iiter = IndexBlockReader(readOptions);
- auto filter_entry = GetFilter(readOptions.read_tier == kBlockCacheTier);
- FilterBlockReader* filter = filter_entry.value;
- bool done = false;
- for (iiter->Seek(key); iiter->Valid() && !done; iiter->Next()) {
- Slice handle_value = iiter->value();
-
- BlockHandle handle;
- bool may_not_exist_in_filter =
- filter != nullptr &&
- handle.DecodeFrom(&handle_value).ok() &&
- !filter->KeyMayMatch(handle.offset(), key);
-
- if (may_not_exist_in_filter) {
- // Not found
- // TODO: think about interaction with Merge. If a user key cannot
- // cross one data block, we should be fine.
- RecordTick(rep_->options.statistics, BLOOM_FILTER_USEFUL);
- break;
- } else {
- bool didIO = false;
- unique_ptr<Iterator> block_iter(
- BlockReader(this, readOptions, iiter->value(), &didIO));
-
- if (readOptions.read_tier && block_iter->status().IsIncomplete()) {
- // couldn't get block from block_cache
- // Update Saver.state to Found because we are only looking for whether
- // we can guarantee the key is not there when "no_io" is set
- (*mark_key_may_exist_handler)(handle_context);
- break;
- }
-
- // Call the *saver function on each entry/block until it returns false
- for (block_iter->Seek(key); block_iter->Valid(); block_iter->Next()) {
- if (!(*result_handler)(handle_context, block_iter->key(),
- block_iter->value(), didIO)) {
- done = true;
- break;
- }
- }
- s = block_iter->status();
- }
- }
-
- filter_entry.Release(rep_->options.block_cache.get());
- if (s.ok()) {
- s = iiter->status();
- }
- delete iiter;
- return s;
-}
-
-bool SaveDidIO(void* arg, const Slice& key, const Slice& value, bool didIO) {
- *reinterpret_cast<bool*>(arg) = didIO;
- return false;
-}
-bool BlockBasedTable::TEST_KeyInCache(const ReadOptions& options,
- const Slice& key) {
- // We use Get() as it has logic that checks whether we read the
- // block from the disk or not.
- bool didIO = false;
- Status s = Get(options, key, &didIO, SaveDidIO);
- assert(s.ok());
- return !didIO;
-}
-
-uint64_t BlockBasedTable::ApproximateOffsetOf(const Slice& key) {
- Iterator* index_iter = IndexBlockReader(ReadOptions());
-
- index_iter->Seek(key);
- uint64_t result;
- if (index_iter->Valid()) {
- BlockHandle handle;
- Slice input = index_iter->value();
- Status s = handle.DecodeFrom(&input);
- if (s.ok()) {
- result = handle.offset();
- } else {
- // Strange: we can't decode the block handle in the index block.
- // We'll just return the offset of the metaindex block, which is
- // close to the whole file size for this case.
- result = rep_->metaindex_handle.offset();
- }
- } else {
- // key is past the last key in the file. Approximate the offset
- // by returning the offset of the metaindex block (which is
- // right near the end of the file).
- result = rep_->metaindex_handle.offset();
- }
- delete index_iter;
- return result;
-}
-
-const std::string BlockBasedTable::kFilterBlockPrefix = "filter.";
-const std::string BlockBasedTable::kStatsBlock = "rocksdb.stats";
-
-const std::string BlockBasedTableStatsNames::kDataSize = "rocksdb.data.size";
-const std::string BlockBasedTableStatsNames::kIndexSize = "rocksdb.index.size";
-const std::string BlockBasedTableStatsNames::kRawKeySize =
- "rocksdb.raw.key.size";
-const std::string BlockBasedTableStatsNames::kRawValueSize =
- "rocksdb.raw.value.size";
-const std::string BlockBasedTableStatsNames::kNumDataBlocks =
- "rocksdb.num.data.blocks";
-const std::string BlockBasedTableStatsNames::kNumEntries =
- "rocksdb.num.entries";
-const std::string BlockBasedTableStatsNames::kFilterPolicy =
- "rocksdb.filter.policy";
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <memory>
-#include <stdint.h>
-#include "rocksdb/cache.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/statistics.h"
-#include "rocksdb/table_stats.h"
-#include "rocksdb/table.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-class Block;
-class BlockHandle;
-class Footer;
-struct Options;
-class RandomAccessFile;
-struct ReadOptions;
-class TableCache;
-class TableReader;
-class FilterBlockReader;
-
-using std::unique_ptr;
-
-// A Table is a sorted map from strings to strings. Tables are
-// immutable and persistent. A Table may be safely accessed from
-// multiple threads without external synchronization.
-class BlockBasedTable : public TableReader {
- public:
- static const std::string kFilterBlockPrefix;
- static const std::string kStatsBlock;
-
- // Attempt to open the table that is stored in bytes [0..file_size)
- // of "file", and read the metadata entries necessary to allow
- // retrieving data from the table.
- //
- // If successful, returns ok and sets "*table_reader" to the newly opened
- // table. The client should delete "*table_reader" when no longer needed.
- // If there was an error while initializing the table, sets "*table_reader"
- // to nullptr and returns a non-ok status.
- //
- // *file must remain live while this Table is in use.
- static Status Open(const Options& options,
- const EnvOptions& soptions,
- unique_ptr<RandomAccessFile>&& file,
- uint64_t file_size,
- unique_ptr<TableReader>* table_reader);
-
- bool PrefixMayMatch(const Slice& internal_prefix) override;
-
- // Returns a new iterator over the table contents.
- // The result of NewIterator() is initially invalid (caller must
- // call one of the Seek methods on the iterator before using it).
- Iterator* NewIterator(const ReadOptions&) override;
-
- Status Get(
- const ReadOptions& readOptions,
- const Slice& key,
- void* handle_context,
- bool (*result_handler)(void* handle_context, const Slice& k,
- const Slice& v, bool didIO),
- void (*mark_key_may_exist_handler)(void* handle_context) = nullptr)
- override;
-
- // Given a key, return an approximate byte offset in the file where
- // the data for that key begins (or would begin if the key were
- // present in the file). The returned value is in terms of file
- // bytes, and so includes effects like compression of the underlying data.
- // E.g., the approximate offset of the last key in the table will
- // be close to the file length.
- uint64_t ApproximateOffsetOf(const Slice& key) override;
-
- // Returns true if the block for the specified key is in cache.
- // REQUIRES: key is in this table.
- bool TEST_KeyInCache(const ReadOptions& options, const Slice& key) override;
-
- // Set up the table for Compaction. Might change some parameters with
- // posix_fadvise
- void SetupForCompaction() override;
-
- TableStats& GetTableStats() override;
-
- ~BlockBasedTable();
-
- private:
- template <class TValue>
- struct CachableEntry;
-
- struct Rep;
- Rep* rep_;
- bool compaction_optimized_;
-
- static Iterator* BlockReader(void*, const ReadOptions&,
- const EnvOptions& soptions, const Slice&,
- bool for_compaction);
-
- static Iterator* BlockReader(void*, const ReadOptions&, const Slice&,
- bool* didIO, bool for_compaction = false);
-
- // if `no_io == true`, we will not try to read filter from sst file
- // if it is not cached yet.
- CachableEntry<FilterBlockReader> GetFilter(bool no_io = false) const;
-
- Iterator* IndexBlockReader(const ReadOptions& options) const;
-
- // Read the block, either from sst file or from cache. This method will try
- // to read from cache only when block_cache is set or ReadOption doesn't
- // explicitly prohibit storage IO.
- //
- // If the block is read from cache, the statistics for cache miss/hit of the
- // the given type of block will be updated. User can specify
- // `block_cache_miss_ticker` and `block_cache_hit_ticker` for the statistics
- // update.
- //
- // On success, the `result` parameter will be populated, which contains a
- // pointer to the block and its cache handle, which will be nullptr if it's
- // not read from the cache.
- static Status GetBlock(const BlockBasedTable* table,
- const BlockHandle& handle,
- const ReadOptions& options,
- bool for_compaction,
- Tickers block_cache_miss_ticker,
- Tickers block_cache_hit_ticker,
- bool* didIO,
- CachableEntry<Block>* result);
-
- // Calls (*handle_result)(arg, ...) repeatedly, starting with the entry found
- // after a call to Seek(key), until handle_result returns false.
- // May not make such a call if filter policy says that key is not present.
- friend class TableCache;
- friend class BlockBasedTableBuilder;
-
- void ReadMeta(const Footer& footer);
- void ReadFilter(const Slice& filter_handle_value);
- static Status ReadStats(const Slice& handle_value, Rep* rep);
-
- // Read the meta block from sst.
- static Status ReadMetaBlock(
- Rep* rep,
- std::unique_ptr<Block>* meta_block,
- std::unique_ptr<Iterator>* iter);
-
- // Create the filter from the filter block.
- static FilterBlockReader* ReadFilter(
- const Slice& filter_handle_value,
- Rep* rep,
- size_t* filter_size = nullptr);
-
- // Read the table stats from stats block.
- static Status ReadStats(
- const Slice& handle_value, Rep* rep, TableStats* stats);
-
- static void SetupCacheKeyPrefix(Rep* rep);
-
- explicit BlockBasedTable(Rep* rep) :
- compaction_optimized_(false) {
- rep_ = rep;
- }
- // Generate a cache key prefix from the file
- static void GenerateCachePrefix(shared_ptr<Cache> cc,
- RandomAccessFile* file, char* buffer, size_t* size);
- static void GenerateCachePrefix(shared_ptr<Cache> cc,
- WritableFile* file, char* buffer, size_t* size);
-
- // The longest prefix of the cache key used to identify blocks.
- // For Posix files the unique ID is three varints.
- static const size_t kMaxCacheKeyPrefixSize = kMaxVarint64Length*3+1;
-
- // No copying allowed
- explicit BlockBasedTable(const TableReader&) = delete;
- void operator=(const TableReader&) = delete;
-};
-
-struct BlockBasedTableStatsNames {
- static const std::string kDataSize;
- static const std::string kIndexSize;
- static const std::string kRawKeySize;
- static const std::string kRawValueSize;
- static const std::string kNumDataBlocks;
- static const std::string kNumEntries;
- static const std::string kFilterPolicy;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// BlockBuilder generates blocks where keys are prefix-compressed:
-//
-// When we store a key, we drop the prefix shared with the previous
-// string. This helps reduce the space requirement significantly.
-// Furthermore, once every K keys, we do not apply the prefix
-// compression and store the entire key. We call this a "restart
-// point". The tail end of the block stores the offsets of all of the
-// restart points, and can be used to do a binary search when looking
-// for a particular key. Values are stored as-is (without compression)
-// immediately following the corresponding key.
-//
-// An entry for a particular key-value pair has the form:
-// shared_bytes: varint32
-// unshared_bytes: varint32
-// value_length: varint32
-// key_delta: char[unshared_bytes]
-// value: char[value_length]
-// shared_bytes == 0 for restart points.
-//
-// The trailer of the block has the form:
-// restarts: uint32[num_restarts]
-// num_restarts: uint32
-// restarts[i] contains the offset within the block of the ith restart point.
-
-#include "table/block_builder.h"
-
-#include <algorithm>
-#include <assert.h>
-#include "rocksdb/comparator.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-BlockBuilder::BlockBuilder(int block_restart_interval,
- const Comparator* comparator)
- : block_restart_interval_(block_restart_interval),
- comparator_(comparator),
- restarts_(),
- counter_(0),
- finished_(false) {
- assert(block_restart_interval_ >= 1);
- restarts_.push_back(0); // First restart point is at offset 0
-}
-
-BlockBuilder::BlockBuilder(const Options* options)
- : BlockBuilder(options->block_restart_interval, options->comparator) {
-}
-
-void BlockBuilder::Reset() {
- buffer_.clear();
- restarts_.clear();
- restarts_.push_back(0); // First restart point is at offset 0
- counter_ = 0;
- finished_ = false;
- last_key_.clear();
-}
-
-size_t BlockBuilder::CurrentSizeEstimate() const {
- return (buffer_.size() + // Raw data buffer
- restarts_.size() * sizeof(uint32_t) + // Restart array
- sizeof(uint32_t)); // Restart array length
-}
-
-size_t BlockBuilder::EstimateSizeAfterKV(const Slice& key, const Slice& value)
- const {
- size_t estimate = CurrentSizeEstimate();
- estimate += key.size() + value.size();
- if (counter_ >= block_restart_interval_) {
- estimate += sizeof(uint32_t); // a new restart entry.
- }
-
- estimate += sizeof(int32_t); // varint for shared prefix length.
- estimate += VarintLength(key.size()); // varint for key length.
- estimate += VarintLength(value.size()); // varint for value length.
-
- return estimate;
-}
-
-Slice BlockBuilder::Finish() {
- // Append restart array
- for (size_t i = 0; i < restarts_.size(); i++) {
- PutFixed32(&buffer_, restarts_[i]);
- }
- PutFixed32(&buffer_, restarts_.size());
- finished_ = true;
- return Slice(buffer_);
-}
-
-void BlockBuilder::Add(const Slice& key, const Slice& value) {
- Slice last_key_piece(last_key_);
- assert(!finished_);
- assert(counter_ <= block_restart_interval_);
- assert(buffer_.empty() // No values yet?
- || comparator_->Compare(key, last_key_piece) > 0);
- size_t shared = 0;
- if (counter_ < block_restart_interval_) {
- // See how much sharing to do with previous string
- const size_t min_length = std::min(last_key_piece.size(), key.size());
- while ((shared < min_length) && (last_key_piece[shared] == key[shared])) {
- shared++;
- }
- } else {
- // Restart compression
- restarts_.push_back(buffer_.size());
- counter_ = 0;
- }
- const size_t non_shared = key.size() - shared;
-
- // Add "<shared><non_shared><value_size>" to buffer_
- PutVarint32(&buffer_, shared);
- PutVarint32(&buffer_, non_shared);
- PutVarint32(&buffer_, value.size());
-
- // Add string delta to buffer_ followed by value
- buffer_.append(key.data() + shared, non_shared);
- buffer_.append(value.data(), value.size());
-
- // Update state
- last_key_.resize(shared);
- last_key_.append(key.data() + shared, non_shared);
- assert(Slice(last_key_) == key);
- counter_++;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <vector>
-
-#include <stdint.h>
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-struct Options;
-class Comparator;
-
-class BlockBuilder {
- public:
- BlockBuilder(int block_restart_interval, const Comparator* comparator);
- explicit BlockBuilder(const Options* options);
-
- // Reset the contents as if the BlockBuilder was just constructed.
- void Reset();
-
- // REQUIRES: Finish() has not been callled since the last call to Reset().
- // REQUIRES: key is larger than any previously added key
- void Add(const Slice& key, const Slice& value);
-
- // Finish building the block and return a slice that refers to the
- // block contents. The returned slice will remain valid for the
- // lifetime of this builder or until Reset() is called.
- Slice Finish();
-
- // Returns an estimate of the current (uncompressed) size of the block
- // we are building.
- size_t CurrentSizeEstimate() const;
-
- // Returns an estimated block size after appending key and value.
- size_t EstimateSizeAfterKV(const Slice& key, const Slice& value) const;
-
- // Return true iff no entries have been added since the last Reset()
- bool empty() const {
- return buffer_.empty();
- }
-
- private:
- const int block_restart_interval_;
- const Comparator* comparator_;
-
- std::string buffer_; // Destination buffer
- std::vector<uint32_t> restarts_; // Restart points
- int counter_; // Number of entries emitted since restart
- bool finished_; // Has Finish() been called?
- std::string last_key_;
-
- // No copying allowed
- BlockBuilder(const BlockBuilder&);
- void operator=(const BlockBuilder&);
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <string>
-#include "db/dbformat.h"
-#include "db/memtable.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/table.h"
-#include "table/block.h"
-#include "table/block_builder.h"
-#include "table/format.h"
-#include "util/random.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-static std::string RandomString(Random* rnd, int len) {
- std::string r;
- test::RandomString(rnd, len, &r);
- return r;
-}
-
-class BlockTest {};
-
-// block test
-TEST(BlockTest, SimpleTest) {
- Random rnd(301);
- Options options = Options();
- std::vector<std::string> keys;
- std::vector<std::string> values;
- BlockBuilder builder(&options);
- int num_records = 100000;
- char buf[10];
- char* p = &buf[0];
-
- // add a bunch of records to a block
- for (int i = 0; i < num_records; i++) {
- // generate random kvs
- sprintf(p, "%6d", i);
- std::string k(p);
- std::string v = RandomString(&rnd, 100); // 100 byte values
-
- // write kvs to the block
- Slice key(k);
- Slice value(v);
- builder.Add(key, value);
-
- // remember kvs in a lookaside array
- keys.push_back(k);
- values.push_back(v);
- }
-
- // read serialized contents of the block
- Slice rawblock = builder.Finish();
-
- // create block reader
- BlockContents contents;
- contents.data = rawblock;
- contents.cachable = false;
- contents.heap_allocated = false;
- Block reader(contents);
-
- // read contents of block sequentially
- int count = 0;
- Iterator* iter = reader.NewIterator(options.comparator);
- for (iter->SeekToFirst();iter->Valid(); count++, iter->Next()) {
-
- // read kv from block
- Slice k = iter->key();
- Slice v = iter->value();
-
- // compare with lookaside array
- ASSERT_EQ(k.ToString().compare(keys[count]), 0);
- ASSERT_EQ(v.ToString().compare(values[count]), 0);
- }
- delete iter;
-
- // read block contents randomly
- iter = reader.NewIterator(options.comparator);
- for (int i = 0; i < num_records; i++) {
-
- // find a random key in the lookaside array
- int index = rnd.Uniform(num_records);
- Slice k(keys[index]);
-
- // search in block for this key
- iter->Seek(k);
- ASSERT_TRUE(iter->Valid());
- Slice v = iter->value();
- ASSERT_EQ(v.ToString().compare(values[index]), 0);
- }
- delete iter;
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/filter_block.h"
-
-#include "db/dbformat.h"
-#include "rocksdb/filter_policy.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-// See doc/table_format.txt for an explanation of the filter block format.
-
-// Generate new filter every 2KB of data
-static const size_t kFilterBaseLg = 11;
-static const size_t kFilterBase = 1 << kFilterBaseLg;
-
-FilterBlockBuilder::FilterBlockBuilder(const Options& opt)
- : policy_(opt.filter_policy),
- prefix_extractor_(opt.prefix_extractor),
- whole_key_filtering_(opt.whole_key_filtering),
- comparator_(opt.comparator){}
-
-void FilterBlockBuilder::StartBlock(uint64_t block_offset) {
- uint64_t filter_index = (block_offset / kFilterBase);
- assert(filter_index >= filter_offsets_.size());
- while (filter_index > filter_offsets_.size()) {
- GenerateFilter();
- }
-}
-
-bool FilterBlockBuilder::SamePrefix(const Slice &key1,
- const Slice &key2) const {
- if (!prefix_extractor_->InDomain(key1) &&
- !prefix_extractor_->InDomain(key2)) {
- return true;
- } else if (!prefix_extractor_->InDomain(key1) ||
- !prefix_extractor_->InDomain(key2)) {
- return false;
- } else {
- return (prefix_extractor_->Transform(key1) ==
- prefix_extractor_->Transform(key2));
- }
-}
-
-void FilterBlockBuilder::AddKey(const Slice& key) {
- // get slice for most recently added entry
- Slice prev;
- if (start_.size() > 0) {
- size_t prev_start = start_[start_.size() - 1];
- const char* base = entries_.data() + prev_start;
- size_t length = entries_.size() - prev_start;
- prev = Slice(base, length);
- }
-
- // add key to filter if needed
- if (whole_key_filtering_) {
- start_.push_back(entries_.size());
- entries_.append(key.data(), key.size());
- }
-
- // add prefix to filter if needed
- if (prefix_extractor_ && prefix_extractor_->InDomain(ExtractUserKey(key))) {
- // If prefix_extractor_, this filter_block layer assumes we only
- // operate on internal keys.
- Slice user_key = ExtractUserKey(key);
- // this assumes prefix(prefix(key)) == prefix(key), as the last
- // entry in entries_ may be either a key or prefix, and we use
- // prefix(last entry) to get the prefix of the last key.
- if (prev.size() == 0 ||
- !SamePrefix(user_key, ExtractUserKey(prev))) {
- Slice prefix = prefix_extractor_->Transform(user_key);
- InternalKey internal_prefix_tmp(prefix, 0, kTypeValue);
- Slice internal_prefix = internal_prefix_tmp.Encode();
- assert(comparator_->Compare(internal_prefix, key) <= 0);
- start_.push_back(entries_.size());
- entries_.append(internal_prefix.data(), internal_prefix.size());
- }
- }
-}
-
-Slice FilterBlockBuilder::Finish() {
- if (!start_.empty()) {
- GenerateFilter();
- }
-
- // Append array of per-filter offsets
- const uint32_t array_offset = result_.size();
- for (size_t i = 0; i < filter_offsets_.size(); i++) {
- PutFixed32(&result_, filter_offsets_[i]);
- }
-
- PutFixed32(&result_, array_offset);
- result_.push_back(kFilterBaseLg); // Save encoding parameter in result
- return Slice(result_);
-}
-
-void FilterBlockBuilder::GenerateFilter() {
- const size_t num_entries = start_.size();
- if (num_entries == 0) {
- // Fast path if there are no keys for this filter
- filter_offsets_.push_back(result_.size());
- return;
- }
-
- // Make list of keys from flattened key structure
- start_.push_back(entries_.size()); // Simplify length computation
- tmp_entries_.resize(num_entries);
- for (size_t i = 0; i < num_entries; i++) {
- const char* base = entries_.data() + start_[i];
- size_t length = start_[i+1] - start_[i];
- tmp_entries_[i] = Slice(base, length);
- }
-
- // Generate filter for current set of keys and append to result_.
- filter_offsets_.push_back(result_.size());
- policy_->CreateFilter(&tmp_entries_[0], num_entries, &result_);
-
- tmp_entries_.clear();
- entries_.clear();
- start_.clear();
-}
-
-FilterBlockReader::FilterBlockReader(
- const Options& opt, const Slice& contents, bool delete_contents_after_use)
- : policy_(opt.filter_policy),
- prefix_extractor_(opt.prefix_extractor),
- whole_key_filtering_(opt.whole_key_filtering),
- data_(nullptr),
- offset_(nullptr),
- num_(0),
- base_lg_(0) {
- size_t n = contents.size();
- if (n < 5) return; // 1 byte for base_lg_ and 4 for start of offset array
- base_lg_ = contents[n-1];
- uint32_t last_word = DecodeFixed32(contents.data() + n - 5);
- if (last_word > n - 5) return;
- data_ = contents.data();
- offset_ = data_ + last_word;
- num_ = (n - 5 - last_word) / 4;
- if (delete_contents_after_use) {
- filter_data.reset(contents.data());
- }
-}
-
-bool FilterBlockReader::KeyMayMatch(uint64_t block_offset,
- const Slice& key) {
- if (!whole_key_filtering_) {
- return true;
- }
- return MayMatch(block_offset, key);
-}
-
-bool FilterBlockReader::PrefixMayMatch(uint64_t block_offset,
- const Slice& prefix) {
- if (!prefix_extractor_) {
- return true;
- }
- return MayMatch(block_offset, prefix);
-}
-
-bool FilterBlockReader::MayMatch(uint64_t block_offset, const Slice& entry) {
- uint64_t index = block_offset >> base_lg_;
- if (index < num_) {
- uint32_t start = DecodeFixed32(offset_ + index*4);
- uint32_t limit = DecodeFixed32(offset_ + index*4 + 4);
- if (start <= limit && limit <= (offset_ - data_)) {
- Slice filter = Slice(data_ + start, limit - start);
- return policy_->KeyMayMatch(entry, filter);
- } else if (start == limit) {
- // Empty filters do not match any entries
- return false;
- }
- }
- return true; // Errors are treated as potential matches
-}
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// A filter block is stored near the end of a Table file. It contains
-// filters (e.g., bloom filters) for all data blocks in the table combined
-// into a single filter block.
-
-#pragma once
-
-#include <memory>
-#include <stddef.h>
-#include <stdint.h>
-#include <string>
-#include <vector>
-#include "rocksdb/options.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/slice_transform.h"
-#include "util/hash.h"
-
-namespace rocksdb {
-
-class FilterPolicy;
-
-// A FilterBlockBuilder is used to construct all of the filters for a
-// particular Table. It generates a single string which is stored as
-// a special block in the Table.
-//
-// The sequence of calls to FilterBlockBuilder must match the regexp:
-// (StartBlock AddKey*)* Finish
-class FilterBlockBuilder {
- public:
- explicit FilterBlockBuilder(const Options& opt);
-
- void StartBlock(uint64_t block_offset);
- void AddKey(const Slice& key);
- Slice Finish();
-
- private:
- bool SamePrefix(const Slice &key1, const Slice &key2) const;
- void GenerateFilter();
-
- const FilterPolicy* policy_;
- const SliceTransform* prefix_extractor_;
- bool whole_key_filtering_;
- const Comparator* comparator_;
-
- std::string entries_; // Flattened entry contents
- std::vector<size_t> start_; // Starting index in entries_ of each entry
- std::string result_; // Filter data computed so far
- std::vector<Slice> tmp_entries_; // policy_->CreateFilter() argument
- std::vector<uint32_t> filter_offsets_;
-
- // No copying allowed
- FilterBlockBuilder(const FilterBlockBuilder&);
- void operator=(const FilterBlockBuilder&);
-};
-
-class FilterBlockReader {
- public:
- // REQUIRES: "contents" and *policy must stay live while *this is live.
- FilterBlockReader(
- const Options& opt,
- const Slice& contents,
- bool delete_contents_after_use = false);
- bool KeyMayMatch(uint64_t block_offset, const Slice& key);
- bool PrefixMayMatch(uint64_t block_offset, const Slice& prefix);
-
- private:
- const FilterPolicy* policy_;
- const SliceTransform* prefix_extractor_;
- bool whole_key_filtering_;
- const char* data_; // Pointer to filter data (at block-start)
- const char* offset_; // Pointer to beginning of offset array (at block-end)
- size_t num_; // Number of entries in offset array
- size_t base_lg_; // Encoding parameter (see kFilterBaseLg in .cc file)
- std::unique_ptr<const char[]> filter_data;
-
-
- bool MayMatch(uint64_t block_offset, const Slice& entry);
-};
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/filter_block.h"
-
-#include "rocksdb/filter_policy.h"
-#include "util/coding.h"
-#include "util/hash.h"
-#include "util/logging.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-// For testing: emit an array with one hash value per key
-class TestHashFilter : public FilterPolicy {
- public:
- virtual const char* Name() const {
- return "TestHashFilter";
- }
-
- virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const {
- for (int i = 0; i < n; i++) {
- uint32_t h = Hash(keys[i].data(), keys[i].size(), 1);
- PutFixed32(dst, h);
- }
- }
-
- virtual bool KeyMayMatch(const Slice& key, const Slice& filter) const {
- uint32_t h = Hash(key.data(), key.size(), 1);
- for (unsigned int i = 0; i + 4 <= filter.size(); i += 4) {
- if (h == DecodeFixed32(filter.data() + i)) {
- return true;
- }
- }
- return false;
- }
-};
-
-class FilterBlockTest {
- public:
- TestHashFilter policy_;
- Options options_;
-
- FilterBlockTest() {
- options_ = Options();
- options_.filter_policy = &policy_;
- }
-};
-
-TEST(FilterBlockTest, EmptyBuilder) {
- FilterBlockBuilder builder(options_);
- Slice block = builder.Finish();
- ASSERT_EQ("\\x00\\x00\\x00\\x00\\x0b", EscapeString(block));
- FilterBlockReader reader(options_, block);
- ASSERT_TRUE(reader.KeyMayMatch(0, "foo"));
- ASSERT_TRUE(reader.KeyMayMatch(100000, "foo"));
-}
-
-TEST(FilterBlockTest, SingleChunk) {
- FilterBlockBuilder builder(options_);
- builder.StartBlock(100);
- builder.AddKey("foo");
- builder.AddKey("bar");
- builder.AddKey("box");
- builder.StartBlock(200);
- builder.AddKey("box");
- builder.StartBlock(300);
- builder.AddKey("hello");
- Slice block = builder.Finish();
- FilterBlockReader reader(options_, block);
- ASSERT_TRUE(reader.KeyMayMatch(100, "foo"));
- ASSERT_TRUE(reader.KeyMayMatch(100, "bar"));
- ASSERT_TRUE(reader.KeyMayMatch(100, "box"));
- ASSERT_TRUE(reader.KeyMayMatch(100, "hello"));
- ASSERT_TRUE(reader.KeyMayMatch(100, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(100, "missing"));
- ASSERT_TRUE(! reader.KeyMayMatch(100, "other"));
-}
-
-TEST(FilterBlockTest, MultiChunk) {
- FilterBlockBuilder builder(options_);
-
- // First filter
- builder.StartBlock(0);
- builder.AddKey("foo");
- builder.StartBlock(2000);
- builder.AddKey("bar");
-
- // Second filter
- builder.StartBlock(3100);
- builder.AddKey("box");
-
- // Third filter is empty
-
- // Last filter
- builder.StartBlock(9000);
- builder.AddKey("box");
- builder.AddKey("hello");
-
- Slice block = builder.Finish();
- FilterBlockReader reader(options_, block);
-
- // Check first filter
- ASSERT_TRUE(reader.KeyMayMatch(0, "foo"));
- ASSERT_TRUE(reader.KeyMayMatch(2000, "bar"));
- ASSERT_TRUE(! reader.KeyMayMatch(0, "box"));
- ASSERT_TRUE(! reader.KeyMayMatch(0, "hello"));
-
- // Check second filter
- ASSERT_TRUE(reader.KeyMayMatch(3100, "box"));
- ASSERT_TRUE(! reader.KeyMayMatch(3100, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(3100, "bar"));
- ASSERT_TRUE(! reader.KeyMayMatch(3100, "hello"));
-
- // Check third filter (empty)
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "bar"));
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "box"));
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "hello"));
-
- // Check last filter
- ASSERT_TRUE(reader.KeyMayMatch(9000, "box"));
- ASSERT_TRUE(reader.KeyMayMatch(9000, "hello"));
- ASSERT_TRUE(! reader.KeyMayMatch(9000, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(9000, "bar"));
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-#include "rocksdb/flush_block_policy.h"
-#include "rocksdb/slice.h"
-#include "table/block_builder.h"
-
-#include <cassert>
-
-namespace rocksdb {
-
-// Flush block by size
-class FlushBlockBySizePolicy : public FlushBlockPolicy {
- public:
- // @params block_size: Approximate size of user data packed per
- // block.
- // @params block_size_deviation: This is used to close a block before it
- // reaches the configured
- FlushBlockBySizePolicy(const uint64_t block_size,
- const uint64_t block_size_deviation,
- const BlockBuilder& data_block_builder) :
- block_size_(block_size),
- block_size_deviation_(block_size_deviation),
- data_block_builder_(data_block_builder) {
- }
-
- virtual bool Update(const Slice& key,
- const Slice& value) override {
- // it makes no sense to flush when the data block is empty
- if (data_block_builder_.empty()) {
- return false;
- }
-
- auto curr_size = data_block_builder_.CurrentSizeEstimate();
-
- // Do flush if one of the below two conditions is true:
- // 1) if the current estimated size already exceeds the block size,
- // 2) block_size_deviation is set and the estimated size after appending
- // the kv will exceed the block size and the current size is under the
- // the deviation.
- return curr_size >= block_size_ || BlockAlmostFull(key, value);
- }
-
- private:
- bool BlockAlmostFull(const Slice& key, const Slice& value) const {
- const auto curr_size = data_block_builder_.CurrentSizeEstimate();
- const auto estimated_size_after =
- data_block_builder_.EstimateSizeAfterKV(key, value);
-
- return
- estimated_size_after > block_size_ &&
- block_size_deviation_ > 0 &&
- curr_size * 100 > block_size_ * (100 - block_size_deviation_);
- }
-
- const uint64_t block_size_;
- const uint64_t block_size_deviation_;
- const BlockBuilder& data_block_builder_;
-};
-
-FlushBlockPolicy* FlushBlockBySizePolicyFactory::NewFlushBlockPolicy(
- const BlockBuilder& data_block_builder) const {
- return new FlushBlockBySizePolicy(block_size_,
- block_size_deviation_,
- data_block_builder);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/format.h"
-
-#include "port/port.h"
-#include "rocksdb/env.h"
-#include "table/block.h"
-#include "util/coding.h"
-#include "util/crc32c.h"
-#include "util/perf_context_imp.h"
-
-namespace rocksdb {
-
-void BlockHandle::EncodeTo(std::string* dst) const {
- // Sanity check that all fields have been set
- assert(offset_ != ~static_cast<uint64_t>(0));
- assert(size_ != ~static_cast<uint64_t>(0));
- PutVarint64(dst, offset_);
- PutVarint64(dst, size_);
-}
-
-Status BlockHandle::DecodeFrom(Slice* input) {
- if (GetVarint64(input, &offset_) &&
- GetVarint64(input, &size_)) {
- return Status::OK();
- } else {
- return Status::Corruption("bad block handle");
- }
-}
-
-void Footer::EncodeTo(std::string* dst) const {
-#ifndef NDEBUG
- const size_t original_size = dst->size();
-#endif
- metaindex_handle_.EncodeTo(dst);
- index_handle_.EncodeTo(dst);
- dst->resize(2 * BlockHandle::kMaxEncodedLength); // Padding
- PutFixed32(dst, static_cast<uint32_t>(kTableMagicNumber & 0xffffffffu));
- PutFixed32(dst, static_cast<uint32_t>(kTableMagicNumber >> 32));
- assert(dst->size() == original_size + kEncodedLength);
-}
-
-Status Footer::DecodeFrom(Slice* input) {
- assert(input != nullptr);
- assert(input->size() >= kEncodedLength);
-
- const char* magic_ptr = input->data() + kEncodedLength - 8;
- const uint32_t magic_lo = DecodeFixed32(magic_ptr);
- const uint32_t magic_hi = DecodeFixed32(magic_ptr + 4);
- const uint64_t magic = ((static_cast<uint64_t>(magic_hi) << 32) |
- (static_cast<uint64_t>(magic_lo)));
- if (magic != kTableMagicNumber) {
- return Status::InvalidArgument("not an sstable (bad magic number)");
- }
-
- Status result = metaindex_handle_.DecodeFrom(input);
- if (result.ok()) {
- result = index_handle_.DecodeFrom(input);
- }
- if (result.ok()) {
- // We skip over any leftover data (just padding for now) in "input"
- const char* end = magic_ptr + 8;
- *input = Slice(end, input->data() + input->size() - end);
- }
- return result;
-}
-
-Status ReadBlockContents(RandomAccessFile* file,
- const ReadOptions& options,
- const BlockHandle& handle,
- BlockContents* result,
- Env* env,
- bool do_uncompress) {
- result->data = Slice();
- result->cachable = false;
- result->heap_allocated = false;
-
- // Read the block contents as well as the type/crc footer.
- // See table_builder.cc for the code that built this structure.
- size_t n = static_cast<size_t>(handle.size());
- char* buf = new char[n + kBlockTrailerSize];
- Slice contents;
-
- StopWatchNano timer(env);
- StartPerfTimer(&timer);
- Status s = file->Read(handle.offset(), n + kBlockTrailerSize, &contents, buf);
- BumpPerfCount(&perf_context.block_read_count);
- BumpPerfCount(&perf_context.block_read_byte, n + kBlockTrailerSize);
- BumpPerfTime(&perf_context.block_read_time, &timer);
-
- if (!s.ok()) {
- delete[] buf;
- return s;
- }
- if (contents.size() != n + kBlockTrailerSize) {
- delete[] buf;
- return Status::Corruption("truncated block read");
- }
-
- // Check the crc of the type and the block contents
- const char* data = contents.data(); // Pointer to where Read put the data
- if (options.verify_checksums) {
- const uint32_t crc = crc32c::Unmask(DecodeFixed32(data + n + 1));
- const uint32_t actual = crc32c::Value(data, n + 1);
- if (actual != crc) {
- delete[] buf;
- s = Status::Corruption("block checksum mismatch");
- return s;
- }
- BumpPerfTime(&perf_context.block_checksum_time, &timer);
- }
-
- // If the caller has requested that the block not be uncompressed
- if (!do_uncompress || data[n] == kNoCompression) {
- if (data != buf) {
- // File implementation gave us pointer to some other data.
- // Use it directly under the assumption that it will be live
- // while the file is open.
- delete[] buf;
- result->data = Slice(data, n);
- result->heap_allocated = false;
- result->cachable = false; // Do not double-cache
- } else {
- result->data = Slice(buf, n);
- result->heap_allocated = true;
- result->cachable = true;
- }
- result->compression_type = (rocksdb::CompressionType)data[n];
- s = Status::OK();
- } else {
- s = UncompressBlockContents(data, n, result);
- delete[] buf;
- }
- BumpPerfTime(&perf_context.block_decompress_time, &timer);
- return s;
-}
-
-//
-// The 'data' points to the raw block contents that was read in from file.
-// This method allocates a new heap buffer and the raw block
-// contents are uncompresed into this buffer. This
-// buffer is returned via 'result' and it is upto the caller to
-// free this buffer.
-Status UncompressBlockContents(const char* data, size_t n,
- BlockContents* result) {
- char* ubuf = nullptr;
- int decompress_size = 0;
- assert(data[n] != kNoCompression);
- switch (data[n]) {
- case kSnappyCompression: {
- size_t ulength = 0;
- static char snappy_corrupt_msg[] =
- "Snappy not supported or corrupted Snappy compressed block contents";
- if (!port::Snappy_GetUncompressedLength(data, n, &ulength)) {
- return Status::Corruption(snappy_corrupt_msg);
- }
- ubuf = new char[ulength];
- if (!port::Snappy_Uncompress(data, n, ubuf)) {
- delete[] ubuf;
- return Status::Corruption(snappy_corrupt_msg);
- }
- result->data = Slice(ubuf, ulength);
- result->heap_allocated = true;
- result->cachable = true;
- break;
- }
- case kZlibCompression:
- ubuf = port::Zlib_Uncompress(data, n, &decompress_size);
- static char zlib_corrupt_msg[] =
- "Zlib not supported or corrupted Zlib compressed block contents";
- if (!ubuf) {
- return Status::Corruption(zlib_corrupt_msg);
- }
- result->data = Slice(ubuf, decompress_size);
- result->heap_allocated = true;
- result->cachable = true;
- break;
- case kBZip2Compression:
- ubuf = port::BZip2_Uncompress(data, n, &decompress_size);
- static char bzip2_corrupt_msg[] =
- "Bzip2 not supported or corrupted Bzip2 compressed block contents";
- if (!ubuf) {
- return Status::Corruption(bzip2_corrupt_msg);
- }
- result->data = Slice(ubuf, decompress_size);
- result->heap_allocated = true;
- result->cachable = true;
- break;
- default:
- return Status::Corruption("bad block type");
- }
- result->compression_type = kNoCompression; // not compressed any more
- return Status::OK();
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <string>
-#include <stdint.h>
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-#include "rocksdb/options.h"
-#include "rocksdb/table.h"
-
-namespace rocksdb {
-
-class Block;
-class RandomAccessFile;
-struct ReadOptions;
-
-// BlockHandle is a pointer to the extent of a file that stores a data
-// block or a meta block.
-class BlockHandle {
- public:
- BlockHandle();
-
- // The offset of the block in the file.
- uint64_t offset() const { return offset_; }
- void set_offset(uint64_t offset) { offset_ = offset; }
-
- // The size of the stored block
- uint64_t size() const { return size_; }
- void set_size(uint64_t size) { size_ = size; }
-
- void EncodeTo(std::string* dst) const;
- Status DecodeFrom(Slice* input);
-
- // Maximum encoding length of a BlockHandle
- enum { kMaxEncodedLength = 10 + 10 };
-
- private:
- uint64_t offset_;
- uint64_t size_;
-};
-
-// Footer encapsulates the fixed information stored at the tail
-// end of every table file.
-class Footer {
- public:
- Footer() { }
-
- // The block handle for the metaindex block of the table
- const BlockHandle& metaindex_handle() const { return metaindex_handle_; }
- void set_metaindex_handle(const BlockHandle& h) { metaindex_handle_ = h; }
-
- // The block handle for the index block of the table
- const BlockHandle& index_handle() const {
- return index_handle_;
- }
- void set_index_handle(const BlockHandle& h) {
- index_handle_ = h;
- }
-
- void EncodeTo(std::string* dst) const;
- Status DecodeFrom(Slice* input);
-
- // Encoded length of a Footer. Note that the serialization of a
- // Footer will always occupy exactly this many bytes. It consists
- // of two block handles and a magic number.
- enum {
- kEncodedLength = 2*BlockHandle::kMaxEncodedLength + 8
- };
-
- private:
- BlockHandle metaindex_handle_;
- BlockHandle index_handle_;
-};
-
-// kTableMagicNumber was picked by running
-// echo http://code.google.com/p/leveldb/ | sha1sum
-// and taking the leading 64 bits.
-static const uint64_t kTableMagicNumber = 0xdb4775248b80fb57ull;
-
-// 1-byte type + 32-bit crc
-static const size_t kBlockTrailerSize = 5;
-
-struct BlockContents {
- Slice data; // Actual contents of data
- bool cachable; // True iff data can be cached
- bool heap_allocated; // True iff caller should delete[] data.data()
- CompressionType compression_type;
-};
-
-// Read the block identified by "handle" from "file". On failure
-// return non-OK. On success fill *result and return OK.
-extern Status ReadBlockContents(RandomAccessFile* file,
- const ReadOptions& options,
- const BlockHandle& handle,
- BlockContents* result,
- Env* env,
- bool do_uncompress);
-
-// The 'data' points to the raw block contents read in from file.
-// This method allocates a new heap buffer and the raw block
-// contents are uncompresed into this buffer. This buffer is
-// returned via 'result' and it is upto the caller to
-// free this buffer.
-extern Status UncompressBlockContents(const char* data,
- size_t n,
- BlockContents* result);
-
-// Implementation details follow. Clients should ignore,
-
-inline BlockHandle::BlockHandle()
- : offset_(~static_cast<uint64_t>(0)),
- size_(~static_cast<uint64_t>(0)) {
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-
-#pragma once
-#include <queue>
-
-#include "rocksdb/comparator.h"
-#include "table/iterator_wrapper.h"
-
-namespace rocksdb {
-
-// Return the max of two keys.
-class MaxIteratorComparator {
- public:
- MaxIteratorComparator(const Comparator* comparator) :
- comparator_(comparator) {}
-
- bool operator()(IteratorWrapper* a, IteratorWrapper* b) {
- return comparator_->Compare(a->key(), b->key()) <= 0;
- }
- private:
- const Comparator* comparator_;
-};
-
-// Return the max of two keys.
-class MinIteratorComparator {
- public:
- // if maxHeap is set comparator returns the max value.
- // else returns the min Value.
- // Can use to create a minHeap or a maxHeap.
- MinIteratorComparator(const Comparator* comparator) :
- comparator_(comparator) {}
-
- bool operator()(IteratorWrapper* a, IteratorWrapper* b) {
- return comparator_->Compare(a->key(), b->key()) > 0;
- }
- private:
- const Comparator* comparator_;
-};
-
-typedef std::priority_queue<
- IteratorWrapper*,
- std::vector<IteratorWrapper*>,
- MaxIteratorComparator> MaxIterHeap;
-
-typedef std::priority_queue<
- IteratorWrapper*,
- std::vector<IteratorWrapper*>,
- MinIteratorComparator> MinIterHeap;
-
-// Return's a new MaxHeap of IteratorWrapper's using the provided Comparator.
-MaxIterHeap NewMaxIterHeap(const Comparator* comparator) {
- return MaxIterHeap(MaxIteratorComparator(comparator));
-}
-
-// Return's a new MinHeap of IteratorWrapper's using the provided Comparator.
-MinIterHeap NewMinIterHeap(const Comparator* comparator) {
- return MinIterHeap(MinIteratorComparator(comparator));
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/iterator.h"
-
-namespace rocksdb {
-
-Iterator::Iterator() {
- cleanup_.function = nullptr;
- cleanup_.next = nullptr;
-}
-
-Iterator::~Iterator() {
- if (cleanup_.function != nullptr) {
- (*cleanup_.function)(cleanup_.arg1, cleanup_.arg2);
- for (Cleanup* c = cleanup_.next; c != nullptr; ) {
- (*c->function)(c->arg1, c->arg2);
- Cleanup* next = c->next;
- delete c;
- c = next;
- }
- }
-}
-
-void Iterator::RegisterCleanup(CleanupFunction func, void* arg1, void* arg2) {
- assert(func != nullptr);
- Cleanup* c;
- if (cleanup_.function == nullptr) {
- c = &cleanup_;
- } else {
- c = new Cleanup;
- c->next = cleanup_.next;
- cleanup_.next = c;
- }
- c->function = func;
- c->arg1 = arg1;
- c->arg2 = arg2;
-}
-
-namespace {
-class EmptyIterator : public Iterator {
- public:
- explicit EmptyIterator(const Status& s) : status_(s) { }
- virtual bool Valid() const { return false; }
- virtual void Seek(const Slice& target) { }
- virtual void SeekToFirst() { }
- virtual void SeekToLast() { }
- virtual void Next() { assert(false); }
- virtual void Prev() { assert(false); }
- Slice key() const { assert(false); return Slice(); }
- Slice value() const { assert(false); return Slice(); }
- virtual Status status() const { return status_; }
- private:
- Status status_;
-};
-} // namespace
-
-Iterator* NewEmptyIterator() {
- return new EmptyIterator(Status::OK());
-}
-
-Iterator* NewErrorIterator(const Status& status) {
- return new EmptyIterator(status);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-namespace rocksdb {
-
-// A internal wrapper class with an interface similar to Iterator that
-// caches the valid() and key() results for an underlying iterator.
-// This can help avoid virtual function calls and also gives better
-// cache locality.
-class IteratorWrapper {
- public:
- IteratorWrapper(): iter_(nullptr), valid_(false) { }
- explicit IteratorWrapper(Iterator* iter): iter_(nullptr) {
- Set(iter);
- }
- ~IteratorWrapper() { delete iter_; }
- Iterator* iter() const { return iter_; }
-
- // Takes ownership of "iter" and will delete it when destroyed, or
- // when Set() is invoked again.
- void Set(Iterator* iter) {
- delete iter_;
- iter_ = iter;
- if (iter_ == nullptr) {
- valid_ = false;
- } else {
- Update();
- }
- }
-
-
- // Iterator interface methods
- bool Valid() const { return valid_; }
- Slice key() const { assert(Valid()); return key_; }
- Slice value() const { assert(Valid()); return iter_->value(); }
- // Methods below require iter() != nullptr
- Status status() const { assert(iter_); return iter_->status(); }
- void Next() { assert(iter_); iter_->Next(); Update(); }
- void Prev() { assert(iter_); iter_->Prev(); Update(); }
- void Seek(const Slice& k) { assert(iter_); iter_->Seek(k); Update(); }
- void SeekToFirst() { assert(iter_); iter_->SeekToFirst(); Update(); }
- void SeekToLast() { assert(iter_); iter_->SeekToLast(); Update(); }
-
- private:
- void Update() {
- valid_ = iter_->Valid();
- if (valid_) {
- key_ = iter_->key();
- }
- }
-
- Iterator* iter_;
- bool valid_;
- Slice key_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/merger.h"
-
-#include "rocksdb/comparator.h"
-#include "rocksdb/iterator.h"
-#include "table/iter_heap.h"
-#include "table/iterator_wrapper.h"
-
-#include <vector>
-
-namespace rocksdb {
-
-namespace {
-
-class MergingIterator : public Iterator {
- public:
- MergingIterator(const Comparator* comparator, Iterator** children, int n)
- : comparator_(comparator),
- children_(n),
- current_(nullptr),
- direction_(kForward),
- maxHeap_(NewMaxIterHeap(comparator_)),
- minHeap_ (NewMinIterHeap(comparator_)) {
- for (int i = 0; i < n; i++) {
- children_[i].Set(children[i]);
- }
- for (auto& child : children_) {
- if (child.Valid()) {
- minHeap_.push(&child);
- }
- }
- }
-
- virtual ~MergingIterator() { }
-
- virtual bool Valid() const {
- return (current_ != nullptr);
- }
-
- virtual void SeekToFirst() {
- ClearHeaps();
- for (auto& child : children_) {
- child.SeekToFirst();
- if (child.Valid()) {
- minHeap_.push(&child);
- }
- }
- FindSmallest();
- direction_ = kForward;
- }
-
- virtual void SeekToLast() {
- ClearHeaps();
- for (auto& child : children_) {
- child.SeekToLast();
- if (child.Valid()) {
- maxHeap_.push(&child);
- }
- }
- FindLargest();
- direction_ = kReverse;
- }
-
- virtual void Seek(const Slice& target) {
- ClearHeaps();
- for (auto& child : children_) {
- child.Seek(target);
- if (child.Valid()) {
- minHeap_.push(&child);
- }
- }
- FindSmallest();
- direction_ = kForward;
- }
-
- virtual void Next() {
- assert(Valid());
-
- // Ensure that all children are positioned after key().
- // If we are moving in the forward direction, it is already
- // true for all of the non-current_ children since current_ is
- // the smallest child and key() == current_->key(). Otherwise,
- // we explicitly position the non-current_ children.
- if (direction_ != kForward) {
- ClearHeaps();
- for (auto& child : children_) {
- if (&child != current_) {
- child.Seek(key());
- if (child.Valid() &&
- comparator_->Compare(key(), child.key()) == 0) {
- child.Next();
- }
- if (child.Valid()) {
- minHeap_.push(&child);
- }
- }
- }
- direction_ = kForward;
- }
-
- // as the current points to the current record. move the iterator forward.
- // and if it is valid add it to the heap.
- current_->Next();
- if (current_->Valid()){
- minHeap_.push(current_);
- }
- FindSmallest();
- }
-
- virtual void Prev() {
- assert(Valid());
- // Ensure that all children are positioned before key().
- // If we are moving in the reverse direction, it is already
- // true for all of the non-current_ children since current_ is
- // the largest child and key() == current_->key(). Otherwise,
- // we explicitly position the non-current_ children.
- if (direction_ != kReverse) {
- ClearHeaps();
- for (auto& child : children_) {
- if (&child != current_) {
- child.Seek(key());
- if (child.Valid()) {
- // Child is at first entry >= key(). Step back one to be < key()
- child.Prev();
- } else {
- // Child has no entries >= key(). Position at last entry.
- child.SeekToLast();
- }
- if (child.Valid()) {
- maxHeap_.push(&child);
- }
- }
- }
- direction_ = kReverse;
- }
-
- current_->Prev();
- if (current_->Valid()) {
- maxHeap_.push(current_);
- }
- FindLargest();
- }
-
- virtual Slice key() const {
- assert(Valid());
- return current_->key();
- }
-
- virtual Slice value() const {
- assert(Valid());
- return current_->value();
- }
-
- virtual Status status() const {
- Status status;
- for (auto& child : children_) {
- status = child.status();
- if (!status.ok()) {
- break;
- }
- }
- return status;
- }
-
- private:
- void FindSmallest();
- void FindLargest();
- void ClearHeaps();
-
- const Comparator* comparator_;
- std::vector<IteratorWrapper> children_;
- IteratorWrapper* current_;
- // Which direction is the iterator moving?
- enum Direction {
- kForward,
- kReverse
- };
- Direction direction_;
- MaxIterHeap maxHeap_;
- MinIterHeap minHeap_;
-};
-
-void MergingIterator::FindSmallest() {
- if (minHeap_.empty()) {
- current_ = nullptr;
- } else {
- current_ = minHeap_.top();
- assert(current_->Valid());
- minHeap_.pop();
- }
-}
-
-void MergingIterator::FindLargest() {
- if (maxHeap_.empty()) {
- current_ = nullptr;
- } else {
- current_ = maxHeap_.top();
- assert(current_->Valid());
- maxHeap_.pop();
- }
-}
-
-void MergingIterator::ClearHeaps() {
- maxHeap_ = NewMaxIterHeap(comparator_);
- minHeap_ = NewMinIterHeap(comparator_);
-}
-} // namespace
-
-Iterator* NewMergingIterator(const Comparator* cmp, Iterator** list, int n) {
- assert(n >= 0);
- if (n == 0) {
- return NewEmptyIterator();
- } else if (n == 1) {
- return list[0];
- } else {
- return new MergingIterator(cmp, list, n);
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-
-namespace rocksdb {
-
-class Comparator;
-class Iterator;
-
-// Return an iterator that provided the union of the data in
-// children[0,n-1]. Takes ownership of the child iterators and
-// will delete them when the result iterator is deleted.
-//
-// The result does no duplicate suppression. I.e., if a particular
-// key is present in K child iterators, it will be yielded K times.
-//
-// REQUIRES: n >= 0
-extern Iterator* NewMergingIterator(
- const Comparator* comparator, Iterator** children, int n);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-#include <gflags/gflags.h>
-
-#include "rocksdb/db.h"
-#include "rocksdb/table.h"
-#include "db/db_impl.h"
-#include "table/block_based_table_factory.h"
-#include "util/histogram.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-// Make a key that i determines the first 4 characters and j determines the
-// last 4 characters.
-static std::string MakeKey(int i, int j) {
- char buf[100];
- snprintf(buf, sizeof(buf), "%04d__key___%04d ", i, j);
- return std::string(buf);
-}
-
-static bool DummySaveValue(void* arg, const Slice& ikey, const Slice& v,
- bool didIO) {
- return false;
-}
-
-// A very simple benchmark that.
-// Create a table with roughly numKey1 * numKey2 keys,
-// where there are numKey1 prefixes of the key, each has numKey2 number of
-// distinguished key, differing in the suffix part.
-// If if_query_empty_keys = false, query the existing keys numKey1 * numKey2
-// times randomly.
-// If if_query_empty_keys = true, query numKey1 * numKey2 random empty keys.
-// Print out the total time.
-//
-// If for_terator=true, instead of just query one key each time, it queries
-// a range sharing the same prefix.
-void TableReaderBenchmark(Options& opts, EnvOptions& env_options,
- ReadOptions& read_options, TableFactory* tf,
- int num_keys1, int num_keys2, int num_iter,
- bool if_query_empty_keys, bool for_iterator) {
- std::string file_name = test::TmpDir()
- + "/rocksdb_table_reader_benchmark";
- ReadOptions ro;
- unique_ptr<WritableFile> file;
- Env* env = Env::Default();
- env->NewWritableFile(file_name, &file, env_options);
- TableBuilder* tb = tf->GetTableBuilder(opts, file.get(),
- CompressionType::kNoCompression);
-
- // Populate slightly more than 1M keys
- for (int i = 0; i < num_keys1; i++) {
- for (int j = 0; j < num_keys2; j++) {
- std::string key = MakeKey(i * 2, j);
- tb->Add(key, key);
- }
- }
- tb->Finish();
- file->Close();
-
- unique_ptr<TableReader> table_reader;
- unique_ptr<RandomAccessFile> raf;
- Status s = env->NewRandomAccessFile(file_name, &raf, env_options);
- uint64_t file_size;
- env->GetFileSize(file_name, &file_size);
- s = tf->GetTableReader(opts, env_options, std::move(raf), file_size,
- &table_reader);
-
- Random rnd(301);
- HistogramImpl hist;
-
- void* arg = nullptr;
- for (int it = 0; it < num_iter; it++) {
- for (int i = 0; i < num_keys1; i++) {
- for (int j = 0; j < num_keys2; j++) {
- int r1 = rnd.Uniform(num_keys1) * 2;
- int r2 = rnd.Uniform(num_keys2);
- if (!for_iterator) {
- if (if_query_empty_keys) {
- r1++;
- r2 = num_keys2 * 2 - r2;
- }
- // Query one existing key;
- std::string key = MakeKey(r1, r2);
- uint64_t start_micros = env->NowMicros();
- s = table_reader->Get(ro, key, arg, DummySaveValue, nullptr);
- hist.Add(env->NowMicros() - start_micros);
- } else {
- int r2_len = rnd.Uniform(num_keys2) + 1;
- if (r2_len + r2 > num_keys2) {
- r2_len = num_keys2 - r2;
- }
- std::string start_key = MakeKey(r1, r2);
- std::string end_key = MakeKey(r1, r2 + r2_len);
- uint64_t total_time = 0;
- uint64_t start_micros = env->NowMicros();
- Iterator* iter = table_reader->NewIterator(read_options);
- int count = 0;
- for(iter->Seek(start_key); iter->Valid(); iter->Next()) {
- // verify key;
- total_time += env->NowMicros() - start_micros;
- assert(Slice(MakeKey(r1, r2 + count)) == iter->key());
- start_micros = env->NowMicros();
- if (++count >= r2_len) {
- break;
- }
- }
- if (count != r2_len) {
- fprintf(
- stderr, "Iterator cannot iterate expected number of entries. "
- "Expected %d but got %d\n", r2_len, count);
- assert(false);
- }
- delete iter;
- total_time += env->NowMicros() - start_micros;
- hist.Add(total_time);
- }
- }
- }
- }
-
- fprintf(
- stderr,
- "==================================================="
- "====================================================\n"
- "InMemoryTableSimpleBenchmark: %20s num_key1: %5d "
- "num_key2: %5d %10s\n"
- "==================================================="
- "===================================================="
- "\nHistogram (unit: microseconds): \n%s",
- tf->Name(), num_keys1, num_keys2,
- for_iterator? "iterator" : (if_query_empty_keys ? "empty" : "non_empty"),
- hist.ToString().c_str());
- env->DeleteFile(file_name);
-}
-} // namespace rocksdb
-
-DEFINE_bool(query_empty, false, "query non-existing keys instead of existing "
- "ones.");
-DEFINE_int32(num_keys1, 4096, "number of distinguish prefix of keys");
-DEFINE_int32(num_keys2, 512, "number of distinguish keys for each prefix");
-DEFINE_int32(iter, 3, "query non-existing keys instead of existing ones");
-DEFINE_bool(iterator, false, "For test iterator");
-
-int main(int argc, char** argv) {
- google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
- " [OPTIONS]...");
- google::ParseCommandLineFlags(&argc, &argv, true);
-
- rocksdb::TableFactory* tf;
- rocksdb::Options options;
- rocksdb::ReadOptions ro;
- rocksdb::EnvOptions env_options;
- tf = new rocksdb::BlockBasedTableFactory();
- TableReaderBenchmark(options, env_options, ro, tf, FLAGS_num_keys1,
- FLAGS_num_keys2, FLAGS_iter, FLAGS_query_empty,
- FLAGS_iterator);
- delete tf;
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include <map>
-#include <string>
-#include <memory>
-#include <vector>
-
-#include "db/dbformat.h"
-#include "db/db_statistics.h"
-#include "db/memtable.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/memtablerep.h"
-#include "table/block_based_table_builder.h"
-#include "table/block_based_table_reader.h"
-#include "table/block_builder.h"
-#include "table/block.h"
-#include "table/format.h"
-#include "util/random.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-namespace {
-// Return reverse of "key".
-// Used to test non-lexicographic comparators.
-static std::string Reverse(const Slice& key) {
- std::string str(key.ToString());
- std::string rev("");
- for (std::string::reverse_iterator rit = str.rbegin();
- rit != str.rend(); ++rit) {
- rev.push_back(*rit);
- }
- return rev;
-}
-
-static Options GetDefaultOptions() {
- Options options;
- options.SetUpDefaultFlushBlockPolicyFactory();
- return options;
-}
-
-class ReverseKeyComparator : public Comparator {
- public:
- virtual const char* Name() const {
- return "rocksdb.ReverseBytewiseComparator";
- }
-
- virtual int Compare(const Slice& a, const Slice& b) const {
- return BytewiseComparator()->Compare(Reverse(a), Reverse(b));
- }
-
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
- std::string s = Reverse(*start);
- std::string l = Reverse(limit);
- BytewiseComparator()->FindShortestSeparator(&s, l);
- *start = Reverse(s);
- }
-
- virtual void FindShortSuccessor(std::string* key) const {
- std::string s = Reverse(*key);
- BytewiseComparator()->FindShortSuccessor(&s);
- *key = Reverse(s);
- }
-};
-} // namespace
-static ReverseKeyComparator reverse_key_comparator;
-
-static void Increment(const Comparator* cmp, std::string* key) {
- if (cmp == BytewiseComparator()) {
- key->push_back('\0');
- } else {
- assert(cmp == &reverse_key_comparator);
- std::string rev = Reverse(*key);
- rev.push_back('\0');
- *key = Reverse(rev);
- }
-}
-
-// An STL comparator that uses a Comparator
-namespace anon {
-struct STLLessThan {
- const Comparator* cmp;
-
- STLLessThan() : cmp(BytewiseComparator()) { }
- explicit STLLessThan(const Comparator* c) : cmp(c) { }
- bool operator()(const std::string& a, const std::string& b) const {
- return cmp->Compare(Slice(a), Slice(b)) < 0;
- }
-};
-} // namespace
-
-class StringSink: public WritableFile {
- public:
- ~StringSink() { }
-
- const std::string& contents() const { return contents_; }
-
- virtual Status Close() { return Status::OK(); }
- virtual Status Flush() { return Status::OK(); }
- virtual Status Sync() { return Status::OK(); }
-
- virtual Status Append(const Slice& data) {
- contents_.append(data.data(), data.size());
- return Status::OK();
- }
-
- private:
- std::string contents_;
-};
-
-
-class StringSource: public RandomAccessFile {
- public:
- StringSource(const Slice& contents, uint64_t uniq_id)
- : contents_(contents.data(), contents.size()), uniq_id_(uniq_id) {
- }
-
- virtual ~StringSource() { }
-
- uint64_t Size() const { return contents_.size(); }
-
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- if (offset > contents_.size()) {
- return Status::InvalidArgument("invalid Read offset");
- }
- if (offset + n > contents_.size()) {
- n = contents_.size() - offset;
- }
- memcpy(scratch, &contents_[offset], n);
- *result = Slice(scratch, n);
- return Status::OK();
- }
-
- virtual size_t GetUniqueId(char* id, size_t max_size) const {
- if (max_size < 20) {
- return 0;
- }
-
- char* rid = id;
- rid = EncodeVarint64(rid, uniq_id_);
- rid = EncodeVarint64(rid, 0);
- return static_cast<size_t>(rid-id);
- }
-
- private:
- std::string contents_;
- uint64_t uniq_id_;
-};
-
-typedef std::map<std::string, std::string, anon::STLLessThan> KVMap;
-
-// Helper class for tests to unify the interface between
-// BlockBuilder/TableBuilder and Block/Table.
-class Constructor {
- public:
- explicit Constructor(const Comparator* cmp) : data_(anon::STLLessThan(cmp)) { }
- virtual ~Constructor() { }
-
- void Add(const std::string& key, const Slice& value) {
- data_[key] = value.ToString();
- }
-
- // Finish constructing the data structure with all the keys that have
- // been added so far. Returns the keys in sorted order in "*keys"
- // and stores the key/value pairs in "*kvmap"
- void Finish(const Options& options,
- std::vector<std::string>* keys,
- KVMap* kvmap) {
- *kvmap = data_;
- keys->clear();
- for (KVMap::const_iterator it = data_.begin();
- it != data_.end();
- ++it) {
- keys->push_back(it->first);
- }
- data_.clear();
- Status s = FinishImpl(options, *kvmap);
- ASSERT_TRUE(s.ok()) << s.ToString();
- }
-
- // Construct the data structure from the data in "data"
- virtual Status FinishImpl(const Options& options, const KVMap& data) = 0;
-
- virtual Iterator* NewIterator() const = 0;
-
- virtual const KVMap& data() { return data_; }
-
- virtual DB* db() const { return nullptr; } // Overridden in DBConstructor
-
- private:
- KVMap data_;
-};
-
-class BlockConstructor: public Constructor {
- public:
- explicit BlockConstructor(const Comparator* cmp)
- : Constructor(cmp),
- comparator_(cmp),
- block_(nullptr) { }
- ~BlockConstructor() {
- delete block_;
- }
- virtual Status FinishImpl(const Options& options, const KVMap& data) {
- delete block_;
- block_ = nullptr;
- BlockBuilder builder(&options);
-
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
- builder.Add(it->first, it->second);
- }
- // Open the block
- data_ = builder.Finish().ToString();
- BlockContents contents;
- contents.data = data_;
- contents.cachable = false;
- contents.heap_allocated = false;
- block_ = new Block(contents);
- return Status::OK();
- }
- virtual Iterator* NewIterator() const {
- return block_->NewIterator(comparator_);
- }
-
- private:
- const Comparator* comparator_;
- std::string data_;
- Block* block_;
-
- BlockConstructor();
-};
-
-class BlockBasedTableConstructor: public Constructor {
- public:
- explicit BlockBasedTableConstructor(
- const Comparator* cmp)
- : Constructor(cmp) {
- }
- ~BlockBasedTableConstructor() {
- Reset();
- }
- virtual Status FinishImpl(const Options& options, const KVMap& data) {
- Reset();
- sink_.reset(new StringSink());
- BlockBasedTableBuilder builder(options, sink_.get(), options.compression);
-
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
- builder.Add(it->first, it->second);
- ASSERT_TRUE(builder.status().ok());
- }
- Status s = builder.Finish();
- ASSERT_TRUE(s.ok()) << s.ToString();
-
- ASSERT_EQ(sink_->contents().size(), builder.FileSize());
-
- // Open the table
- uniq_id_ = cur_uniq_id_++;
- source_.reset(new StringSource(sink_->contents(), uniq_id_));
- unique_ptr<TableFactory> table_factory;
- return options.table_factory->GetTableReader(options, soptions,
- std::move(source_),
- sink_->contents().size(),
- &table_reader_);
- }
-
- virtual Iterator* NewIterator() const {
- return table_reader_->NewIterator(ReadOptions());
- }
-
- uint64_t ApproximateOffsetOf(const Slice& key) const {
- return table_reader_->ApproximateOffsetOf(key);
- }
-
- virtual Status Reopen(const Options& options) {
- source_.reset(new StringSource(sink_->contents(), uniq_id_));
- return options.table_factory->GetTableReader(options, soptions,
- std::move(source_),
- sink_->contents().size(),
- &table_reader_);
- }
-
- virtual TableReader* table_reader() {
- return table_reader_.get();
- }
-
- private:
- void Reset() {
- uniq_id_ = 0;
- table_reader_.reset();
- sink_.reset();
- source_.reset();
- }
-
- uint64_t uniq_id_;
- unique_ptr<StringSink> sink_;
- unique_ptr<StringSource> source_;
- unique_ptr<TableReader> table_reader_;
-
- BlockBasedTableConstructor();
-
- static uint64_t cur_uniq_id_;
- const EnvOptions soptions;
-};
-uint64_t BlockBasedTableConstructor::cur_uniq_id_ = 1;
-
-// A helper class that converts internal format keys into user keys
-class KeyConvertingIterator: public Iterator {
- public:
- explicit KeyConvertingIterator(Iterator* iter) : iter_(iter) { }
- virtual ~KeyConvertingIterator() { delete iter_; }
- virtual bool Valid() const { return iter_->Valid(); }
- virtual void Seek(const Slice& target) {
- ParsedInternalKey ikey(target, kMaxSequenceNumber, kTypeValue);
- std::string encoded;
- AppendInternalKey(&encoded, ikey);
- iter_->Seek(encoded);
- }
- virtual void SeekToFirst() { iter_->SeekToFirst(); }
- virtual void SeekToLast() { iter_->SeekToLast(); }
- virtual void Next() { iter_->Next(); }
- virtual void Prev() { iter_->Prev(); }
-
- virtual Slice key() const {
- assert(Valid());
- ParsedInternalKey key;
- if (!ParseInternalKey(iter_->key(), &key)) {
- status_ = Status::Corruption("malformed internal key");
- return Slice("corrupted key");
- }
- return key.user_key;
- }
-
- virtual Slice value() const { return iter_->value(); }
- virtual Status status() const {
- return status_.ok() ? iter_->status() : status_;
- }
-
- private:
- mutable Status status_;
- Iterator* iter_;
-
- // No copying allowed
- KeyConvertingIterator(const KeyConvertingIterator&);
- void operator=(const KeyConvertingIterator&);
-};
-
-class MemTableConstructor: public Constructor {
- public:
- explicit MemTableConstructor(const Comparator* cmp)
- : Constructor(cmp),
- internal_comparator_(cmp),
- table_factory_(new SkipListFactory) {
- memtable_ = new MemTable(internal_comparator_, table_factory_);
- memtable_->Ref();
- }
- ~MemTableConstructor() {
- memtable_->Unref();
- }
- virtual Status FinishImpl(const Options& options, const KVMap& data) {
- memtable_->Unref();
- memtable_ = new MemTable(internal_comparator_, table_factory_);
- memtable_->Ref();
- int seq = 1;
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
- memtable_->Add(seq, kTypeValue, it->first, it->second);
- seq++;
- }
- return Status::OK();
- }
- virtual Iterator* NewIterator() const {
- return new KeyConvertingIterator(memtable_->NewIterator());
- }
-
- private:
- InternalKeyComparator internal_comparator_;
- MemTable* memtable_;
- std::shared_ptr<SkipListFactory> table_factory_;
-};
-
-class DBConstructor: public Constructor {
- public:
- explicit DBConstructor(const Comparator* cmp)
- : Constructor(cmp),
- comparator_(cmp) {
- db_ = nullptr;
- NewDB();
- }
- ~DBConstructor() {
- delete db_;
- }
- virtual Status FinishImpl(const Options& options, const KVMap& data) {
- delete db_;
- db_ = nullptr;
- NewDB();
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
- WriteBatch batch;
- batch.Put(it->first, it->second);
- ASSERT_TRUE(db_->Write(WriteOptions(), &batch).ok());
- }
- return Status::OK();
- }
- virtual Iterator* NewIterator() const {
- return db_->NewIterator(ReadOptions());
- }
-
- virtual DB* db() const { return db_; }
-
- private:
- void NewDB() {
- std::string name = test::TmpDir() + "/table_testdb";
-
- Options options = GetDefaultOptions();
- options.comparator = comparator_;
- Status status = DestroyDB(name, options);
- ASSERT_TRUE(status.ok()) << status.ToString();
-
- options.create_if_missing = true;
- options.error_if_exists = true;
- options.write_buffer_size = 10000; // Something small to force merging
- status = DB::Open(options, name, &db_);
- ASSERT_TRUE(status.ok()) << status.ToString();
- }
-
- const Comparator* comparator_;
- DB* db_;
-};
-
-static bool SnappyCompressionSupported() {
- std::string out;
- Slice in = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
- return port::Snappy_Compress(GetDefaultOptions().compression_opts,
- in.data(), in.size(),
- &out);
-}
-
-static bool ZlibCompressionSupported() {
- std::string out;
- Slice in = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
- return port::Zlib_Compress(GetDefaultOptions().compression_opts,
- in.data(), in.size(),
- &out);
-}
-
-#ifdef BZIP2
-static bool BZip2CompressionSupported() {
- std::string out;
- Slice in = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
- return port::BZip2_Compress(GetDefaultOptions().compression_opts,
- in.data(), in.size(),
- &out);
-}
-#endif
-
-enum TestType {
- TABLE_TEST,
- BLOCK_TEST,
- MEMTABLE_TEST,
- DB_TEST
-};
-
-struct TestArgs {
- TestType type;
- bool reverse_compare;
- int restart_interval;
- CompressionType compression;
-};
-
-
-static std::vector<TestArgs> Generate_Arg_List() {
- std::vector<TestArgs> ret;
- TestType test_type[4] = {TABLE_TEST, BLOCK_TEST, MEMTABLE_TEST, DB_TEST};
- int test_type_len = 4;
- bool reverse_compare[2] = {false, true};
- int reverse_compare_len = 2;
- int restart_interval[3] = {16, 1, 1024};
- int restart_interval_len = 3;
-
- // Only add compression if it is supported
- std::vector<CompressionType> compression_types;
- compression_types.push_back(kNoCompression);
-#ifdef SNAPPY
- if (SnappyCompressionSupported())
- compression_types.push_back(kSnappyCompression);
-#endif
-
-#ifdef ZLIB
- if (ZlibCompressionSupported())
- compression_types.push_back(kZlibCompression);
-#endif
-
-#ifdef BZIP2
- if (BZip2CompressionSupported())
- compression_types.push_back(kBZip2Compression);
-#endif
-
- for(int i =0; i < test_type_len; i++)
- for (int j =0; j < reverse_compare_len; j++)
- for (int k =0; k < restart_interval_len; k++)
- for (unsigned int n =0; n < compression_types.size(); n++) {
- TestArgs one_arg;
- one_arg.type = test_type[i];
- one_arg.reverse_compare = reverse_compare[j];
- one_arg.restart_interval = restart_interval[k];
- one_arg.compression = compression_types[n];
- ret.push_back(one_arg);
- }
-
- return ret;
-}
-
-class Harness {
- public:
- Harness() : constructor_(nullptr) { }
-
- void Init(const TestArgs& args) {
- delete constructor_;
- constructor_ = nullptr;
- options_ = GetDefaultOptions();
-
- options_.block_restart_interval = args.restart_interval;
- options_.compression = args.compression;
- // Use shorter block size for tests to exercise block boundary
- // conditions more.
- options_.block_size = 256;
- options_.SetUpDefaultFlushBlockPolicyFactory();
- if (args.reverse_compare) {
- options_.comparator = &reverse_key_comparator;
- }
- switch (args.type) {
- case TABLE_TEST:
- constructor_ = new BlockBasedTableConstructor(options_.comparator);
- break;
- case BLOCK_TEST:
- constructor_ = new BlockConstructor(options_.comparator);
- break;
- case MEMTABLE_TEST:
- constructor_ = new MemTableConstructor(options_.comparator);
- break;
- case DB_TEST:
- constructor_ = new DBConstructor(options_.comparator);
- break;
- }
- }
-
- ~Harness() {
- delete constructor_;
- }
-
- void Add(const std::string& key, const std::string& value) {
- constructor_->Add(key, value);
- }
-
- void Test(Random* rnd) {
- std::vector<std::string> keys;
- KVMap data;
- constructor_->Finish(options_, &keys, &data);
-
- TestForwardScan(keys, data);
- TestBackwardScan(keys, data);
- TestRandomAccess(rnd, keys, data);
- }
-
- void TestForwardScan(const std::vector<std::string>& keys,
- const KVMap& data) {
- Iterator* iter = constructor_->NewIterator();
- ASSERT_TRUE(!iter->Valid());
- iter->SeekToFirst();
- for (KVMap::const_iterator model_iter = data.begin();
- model_iter != data.end();
- ++model_iter) {
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- iter->Next();
- }
- ASSERT_TRUE(!iter->Valid());
- delete iter;
- }
-
- void TestBackwardScan(const std::vector<std::string>& keys,
- const KVMap& data) {
- Iterator* iter = constructor_->NewIterator();
- ASSERT_TRUE(!iter->Valid());
- iter->SeekToLast();
- for (KVMap::const_reverse_iterator model_iter = data.rbegin();
- model_iter != data.rend();
- ++model_iter) {
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- iter->Prev();
- }
- ASSERT_TRUE(!iter->Valid());
- delete iter;
- }
-
- void TestRandomAccess(Random* rnd,
- const std::vector<std::string>& keys,
- const KVMap& data) {
- static const bool kVerbose = false;
- Iterator* iter = constructor_->NewIterator();
- ASSERT_TRUE(!iter->Valid());
- KVMap::const_iterator model_iter = data.begin();
- if (kVerbose) fprintf(stderr, "---\n");
- for (int i = 0; i < 200; i++) {
- const int toss = rnd->Uniform(5);
- switch (toss) {
- case 0: {
- if (iter->Valid()) {
- if (kVerbose) fprintf(stderr, "Next\n");
- iter->Next();
- ++model_iter;
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- }
- break;
- }
-
- case 1: {
- if (kVerbose) fprintf(stderr, "SeekToFirst\n");
- iter->SeekToFirst();
- model_iter = data.begin();
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- break;
- }
-
- case 2: {
- std::string key = PickRandomKey(rnd, keys);
- model_iter = data.lower_bound(key);
- if (kVerbose) fprintf(stderr, "Seek '%s'\n",
- EscapeString(key).c_str());
- iter->Seek(Slice(key));
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- break;
- }
-
- case 3: {
- if (iter->Valid()) {
- if (kVerbose) fprintf(stderr, "Prev\n");
- iter->Prev();
- if (model_iter == data.begin()) {
- model_iter = data.end(); // Wrap around to invalid value
- } else {
- --model_iter;
- }
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- }
- break;
- }
-
- case 4: {
- if (kVerbose) fprintf(stderr, "SeekToLast\n");
- iter->SeekToLast();
- if (keys.empty()) {
- model_iter = data.end();
- } else {
- std::string last = data.rbegin()->first;
- model_iter = data.lower_bound(last);
- }
- ASSERT_EQ(ToString(data, model_iter), ToString(iter));
- break;
- }
- }
- }
- delete iter;
- }
-
- std::string ToString(const KVMap& data, const KVMap::const_iterator& it) {
- if (it == data.end()) {
- return "END";
- } else {
- return "'" + it->first + "->" + it->second + "'";
- }
- }
-
- std::string ToString(const KVMap& data,
- const KVMap::const_reverse_iterator& it) {
- if (it == data.rend()) {
- return "END";
- } else {
- return "'" + it->first + "->" + it->second + "'";
- }
- }
-
- std::string ToString(const Iterator* it) {
- if (!it->Valid()) {
- return "END";
- } else {
- return "'" + it->key().ToString() + "->" + it->value().ToString() + "'";
- }
- }
-
- std::string PickRandomKey(Random* rnd, const std::vector<std::string>& keys) {
- if (keys.empty()) {
- return "foo";
- } else {
- const int index = rnd->Uniform(keys.size());
- std::string result = keys[index];
- switch (rnd->Uniform(3)) {
- case 0:
- // Return an existing key
- break;
- case 1: {
- // Attempt to return something smaller than an existing key
- if (result.size() > 0 && result[result.size()-1] > '\0') {
- result[result.size()-1]--;
- }
- break;
- }
- case 2: {
- // Return something larger than an existing key
- Increment(options_.comparator, &result);
- break;
- }
- }
- return result;
- }
- }
-
- // Returns nullptr if not running against a DB
- DB* db() const { return constructor_->db(); }
-
- private:
- Options options_ = GetDefaultOptions();
- Constructor* constructor_;
-};
-
-// Test the empty key
-TEST(Harness, SimpleEmptyKey) {
- std::vector<TestArgs> args = Generate_Arg_List();
- for (unsigned int i = 0; i < args.size(); i++) {
- Init(args[i]);
- Random rnd(test::RandomSeed() + 1);
- Add("", "v");
- Test(&rnd);
- }
-}
-
-TEST(Harness, SimpleSingle) {
- std::vector<TestArgs> args = Generate_Arg_List();
- for (unsigned int i = 0; i < args.size(); i++) {
- Init(args[i]);
- Random rnd(test::RandomSeed() + 2);
- Add("abc", "v");
- Test(&rnd);
- }
-}
-
-TEST(Harness, SimpleMulti) {
- std::vector<TestArgs> args = Generate_Arg_List();
- for (unsigned int i = 0; i < args.size(); i++) {
- Init(args[i]);
- Random rnd(test::RandomSeed() + 3);
- Add("abc", "v");
- Add("abcd", "v");
- Add("ac", "v2");
- Test(&rnd);
- }
-}
-
-TEST(Harness, SimpleSpecialKey) {
- std::vector<TestArgs> args = Generate_Arg_List();
- for (unsigned int i = 0; i < args.size(); i++) {
- Init(args[i]);
- Random rnd(test::RandomSeed() + 4);
- Add("\xff\xff", "v3");
- Test(&rnd);
- }
-}
-
-static bool Between(uint64_t val, uint64_t low, uint64_t high) {
- bool result = (val >= low) && (val <= high);
- if (!result) {
- fprintf(stderr, "Value %llu is not in range [%llu, %llu]\n",
- (unsigned long long)(val),
- (unsigned long long)(low),
- (unsigned long long)(high));
- }
- return result;
-}
-
-class TableTest { };
-
-// This test include all the basic checks except those for index size and block
-// size, which will be conducted in separated unit tests.
-TEST(TableTest, BasicTableStats) {
- BlockBasedTableConstructor c(BytewiseComparator());
-
- c.Add("a1", "val1");
- c.Add("b2", "val2");
- c.Add("c3", "val3");
- c.Add("d4", "val4");
- c.Add("e5", "val5");
- c.Add("f6", "val6");
- c.Add("g7", "val7");
- c.Add("h8", "val8");
- c.Add("j9", "val9");
-
- std::vector<std::string> keys;
- KVMap kvmap;
- Options options = GetDefaultOptions();
- options.compression = kNoCompression;
- options.block_restart_interval = 1;
-
- c.Finish(options, &keys, &kvmap);
-
- auto& stats = c.table_reader()->GetTableStats();
- ASSERT_EQ(kvmap.size(), stats.num_entries);
-
- auto raw_key_size = kvmap.size() * 2ul;
- auto raw_value_size = kvmap.size() * 4ul;
-
- ASSERT_EQ(raw_key_size, stats.raw_key_size);
- ASSERT_EQ(raw_value_size, stats.raw_value_size);
- ASSERT_EQ(1ul, stats.num_data_blocks);
- ASSERT_EQ("", stats.filter_policy_name); // no filter policy is used
-
- // Verify data size.
- BlockBuilder block_builder(&options);
- for (const auto& item : kvmap) {
- block_builder.Add(item.first, item.second);
- }
- Slice content = block_builder.Finish();
- ASSERT_EQ(
- content.size() + kBlockTrailerSize,
- stats.data_size
- );
-}
-
-TEST(TableTest, FilterPolicyNameStats) {
- BlockBasedTableConstructor c(BytewiseComparator());
- c.Add("a1", "val1");
- std::vector<std::string> keys;
- KVMap kvmap;
- Options options = GetDefaultOptions();
- std::unique_ptr<const FilterPolicy> filter_policy(
- NewBloomFilterPolicy(10)
- );
- options.filter_policy = filter_policy.get();
-
- c.Finish(options, &keys, &kvmap);
- auto& stats = c.table_reader()->GetTableStats();
- ASSERT_EQ("rocksdb.BuiltinBloomFilter", stats.filter_policy_name);
-}
-
-static std::string RandomString(Random* rnd, int len) {
- std::string r;
- test::RandomString(rnd, len, &r);
- return r;
-}
-
-// It's very hard to figure out the index block size of a block accurately.
-// To make sure we get the index size, we just make sure as key number
-// grows, the filter block size also grows.
-TEST(TableTest, IndexSizeStat) {
- uint64_t last_index_size = 0;
-
- // we need to use random keys since the pure human readable texts
- // may be well compressed, resulting insignifcant change of index
- // block size.
- Random rnd(test::RandomSeed());
- std::vector<std::string> keys;
-
- for (int i = 0; i < 100; ++i) {
- keys.push_back(RandomString(&rnd, 10000));
- }
-
- // Each time we load one more key to the table. the table index block
- // size is expected to be larger than last time's.
- for (size_t i = 1; i < keys.size(); ++i) {
- BlockBasedTableConstructor c(BytewiseComparator());
- for (size_t j = 0; j < i; ++j) {
- c.Add(keys[j], "val");
- }
-
- std::vector<std::string> ks;
- KVMap kvmap;
- Options options = GetDefaultOptions();
- options.compression = kNoCompression;
- options.block_restart_interval = 1;
-
- c.Finish(options, &ks, &kvmap);
- auto index_size =
- c.table_reader()->GetTableStats().index_size;
- ASSERT_GT(index_size, last_index_size);
- last_index_size = index_size;
- }
-}
-
-TEST(TableTest, NumBlockStat) {
- Random rnd(test::RandomSeed());
- BlockBasedTableConstructor c(BytewiseComparator());
- Options options;
- options.compression = kNoCompression;
- options.block_restart_interval = 1;
- options.block_size = 1000;
- options.SetUpDefaultFlushBlockPolicyFactory();
-
- // Block Size changed, need to set up a new flush policy to reflect the
- // change.
- options.SetUpDefaultFlushBlockPolicyFactory();
-
- for (int i = 0; i < 10; ++i) {
- // the key/val are slightly smaller than block size, so that each block
- // holds roughly one key/value pair.
- c.Add(RandomString(&rnd, 900), "val");
- }
-
- std::vector<std::string> ks;
- KVMap kvmap;
- c.Finish(options, &ks, &kvmap);
- ASSERT_EQ(
- kvmap.size(),
- c.table_reader()->GetTableStats().num_data_blocks
- );
-}
-
-class BlockCacheStats {
- public:
- explicit BlockCacheStats(std::shared_ptr<Statistics> statistics) {
- block_cache_miss =
- statistics.get()->getTickerCount(BLOCK_CACHE_MISS);
- block_cache_hit =
- statistics.get()->getTickerCount(BLOCK_CACHE_HIT);
- index_block_cache_miss =
- statistics.get()->getTickerCount(BLOCK_CACHE_INDEX_MISS);
- index_block_cache_hit =
- statistics.get()->getTickerCount(BLOCK_CACHE_INDEX_HIT);
- data_block_cache_miss =
- statistics.get()->getTickerCount(BLOCK_CACHE_DATA_MISS);
- data_block_cache_hit =
- statistics.get()->getTickerCount(BLOCK_CACHE_DATA_HIT);
- }
-
- // Check if the fetched stats matches the expected ones.
- void AssertEqual(
- long index_block_cache_miss,
- long index_block_cache_hit,
- long data_block_cache_miss,
- long data_block_cache_hit) const {
- ASSERT_EQ(index_block_cache_miss, this->index_block_cache_miss);
- ASSERT_EQ(index_block_cache_hit, this->index_block_cache_hit);
- ASSERT_EQ(data_block_cache_miss, this->data_block_cache_miss);
- ASSERT_EQ(data_block_cache_hit, this->data_block_cache_hit);
- ASSERT_EQ(
- index_block_cache_miss + data_block_cache_miss,
- this->block_cache_miss
- );
- ASSERT_EQ(
- index_block_cache_hit + data_block_cache_hit,
- this->block_cache_hit
- );
- }
-
- private:
- long block_cache_miss = 0;
- long block_cache_hit = 0;
- long index_block_cache_miss = 0;
- long index_block_cache_hit = 0;
- long data_block_cache_miss = 0;
- long data_block_cache_hit = 0;
-};
-
-TEST(TableTest, BlockCacheTest) {
- // -- Table construction
- Options options = GetDefaultOptions();
- options.create_if_missing = true;
- options.statistics = CreateDBStatistics();
- options.block_cache = NewLRUCache(1024);
- std::vector<std::string> keys;
- KVMap kvmap;
-
- BlockBasedTableConstructor c(BytewiseComparator());
- c.Add("key", "value");
- c.Finish(options, &keys, &kvmap);
-
- // -- PART 1: Open with regular block cache.
- // Since block_cache is disabled, no cache activities will be involved.
- unique_ptr<Iterator> iter;
-
- // At first, no block will be accessed.
- {
- BlockCacheStats stats(options.statistics);
- // index will be added to block cache.
- stats.AssertEqual(
- 1, // index block miss
- 0,
- 0,
- 0
- );
- }
-
- // Only index block will be accessed
- {
- iter.reset(c.NewIterator());
- BlockCacheStats stats(options.statistics);
- // NOTE: to help better highlight the "detla" of each ticker, I use
- // <last_value> + <added_value> to indicate the increment of changed
- // value; other numbers remain the same.
- stats.AssertEqual(
- 1,
- 0 + 1, // index block hit
- 0,
- 0
- );
- }
-
- // Only data block will be accessed
- {
- iter->SeekToFirst();
- BlockCacheStats stats(options.statistics);
- stats.AssertEqual(
- 1,
- 1,
- 0 + 1, // data block miss
- 0
- );
- }
-
- // Data block will be in cache
- {
- iter.reset(c.NewIterator());
- iter->SeekToFirst();
- BlockCacheStats stats(options.statistics);
- stats.AssertEqual(
- 1,
- 1 + 1, // index block hit
- 1,
- 0 + 1 // data block hit
- );
- }
- // release the iterator so that the block cache can reset correctly.
- iter.reset();
-
- // -- PART 2: Open without block cache
- options.block_cache.reset();
- options.statistics = CreateDBStatistics(); // reset the stats
- c.Reopen(options);
-
- {
- iter.reset(c.NewIterator());
- iter->SeekToFirst();
- ASSERT_EQ("key", iter->key().ToString());
- BlockCacheStats stats(options.statistics);
- // Nothing is affected at all
- stats.AssertEqual(0, 0, 0, 0);
- }
-
- // -- PART 3: Open with very small block cache
- // In this test, no block will ever get hit since the block cache is
- // too small to fit even one entry.
- options.block_cache = NewLRUCache(1);
- c.Reopen(options);
- {
- BlockCacheStats stats(options.statistics);
- stats.AssertEqual(
- 1, // index block miss
- 0,
- 0,
- 0
- );
- }
-
-
- {
- // Both index and data block get accessed.
- // It first cache index block then data block. But since the cache size
- // is only 1, index block will be purged after data block is inserted.
- iter.reset(c.NewIterator());
- BlockCacheStats stats(options.statistics);
- stats.AssertEqual(
- 1 + 1, // index block miss
- 0,
- 0, // data block miss
- 0
- );
- }
-
- {
- // SeekToFirst() accesses data block. With similar reason, we expect data
- // block's cache miss.
- iter->SeekToFirst();
- BlockCacheStats stats(options.statistics);
- stats.AssertEqual(
- 2,
- 0,
- 0 + 1, // data block miss
- 0
- );
- }
-}
-
-TEST(TableTest, ApproximateOffsetOfPlain) {
- BlockBasedTableConstructor c(BytewiseComparator());
- c.Add("k01", "hello");
- c.Add("k02", "hello2");
- c.Add("k03", std::string(10000, 'x'));
- c.Add("k04", std::string(200000, 'x'));
- c.Add("k05", std::string(300000, 'x'));
- c.Add("k06", "hello3");
- c.Add("k07", std::string(100000, 'x'));
- std::vector<std::string> keys;
- KVMap kvmap;
- Options options = GetDefaultOptions();
- options.block_size = 1024;
- options.SetUpDefaultFlushBlockPolicyFactory();
- options.compression = kNoCompression;
- c.Finish(options, &keys, &kvmap);
-
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("abc"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01a"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k02"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k03"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04"), 10000, 11000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04a"), 210000, 211000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k05"), 210000, 211000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k06"), 510000, 511000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k07"), 510000, 511000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("xyz"), 610000, 612000));
-
-}
-
-static void Do_Compression_Test(CompressionType comp) {
- Random rnd(301);
- BlockBasedTableConstructor c(BytewiseComparator());
- std::string tmp;
- c.Add("k01", "hello");
- c.Add("k02", test::CompressibleString(&rnd, 0.25, 10000, &tmp));
- c.Add("k03", "hello3");
- c.Add("k04", test::CompressibleString(&rnd, 0.25, 10000, &tmp));
- std::vector<std::string> keys;
- KVMap kvmap;
- Options options = GetDefaultOptions();
- options.block_size = 1024;
- options.SetUpDefaultFlushBlockPolicyFactory();
- options.compression = comp;
- c.Finish(options, &keys, &kvmap);
-
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("abc"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k02"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k03"), 2000, 3000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04"), 2000, 3000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("xyz"), 4000, 6000));
-}
-
-TEST(TableTest, ApproximateOffsetOfCompressed) {
- CompressionType compression_state[2];
- int valid = 0;
- if (!SnappyCompressionSupported()) {
- fprintf(stderr, "skipping snappy compression tests\n");
- } else {
- compression_state[valid] = kSnappyCompression;
- valid++;
- }
-
- if (!ZlibCompressionSupported()) {
- fprintf(stderr, "skipping zlib compression tests\n");
- } else {
- compression_state[valid] = kZlibCompression;
- valid++;
- }
-
- for(int i =0; i < valid; i++)
- {
- Do_Compression_Test(compression_state[i]);
- }
-
-}
-
-TEST(TableTest, BlockCacheLeak) {
- // Check that when we reopen a table we don't lose access to blocks already
- // in the cache. This test checks whether the Table actually makes use of the
- // unique ID from the file.
-
- Options opt = GetDefaultOptions();
- opt.block_size = 1024;
- opt.SetUpDefaultFlushBlockPolicyFactory();
- opt.compression = kNoCompression;
- opt.block_cache = NewLRUCache(16*1024*1024); // big enough so we don't ever
- // lose cached values.
-
- BlockBasedTableConstructor c(BytewiseComparator());
- c.Add("k01", "hello");
- c.Add("k02", "hello2");
- c.Add("k03", std::string(10000, 'x'));
- c.Add("k04", std::string(200000, 'x'));
- c.Add("k05", std::string(300000, 'x'));
- c.Add("k06", "hello3");
- c.Add("k07", std::string(100000, 'x'));
- std::vector<std::string> keys;
- KVMap kvmap;
- c.Finish(opt, &keys, &kvmap);
-
- unique_ptr<Iterator> iter(c.NewIterator());
- iter->SeekToFirst();
- while (iter->Valid()) {
- iter->key();
- iter->value();
- iter->Next();
- }
- ASSERT_OK(iter->status());
-
- ASSERT_OK(c.Reopen(opt));
- for (const std::string& key: keys) {
- ASSERT_TRUE(c.table_reader()->TEST_KeyInCache(ReadOptions(), key));
- }
-}
-
-TEST(Harness, Randomized) {
- std::vector<TestArgs> args = Generate_Arg_List();
- for (unsigned int i = 0; i < args.size(); i++) {
- Init(args[i]);
- Random rnd(test::RandomSeed() + 5);
- for (int num_entries = 0; num_entries < 2000;
- num_entries += (num_entries < 50 ? 1 : 200)) {
- if ((num_entries % 10) == 0) {
- fprintf(stderr, "case %d of %d: num_entries = %d\n",
- (i + 1), int(args.size()), num_entries);
- }
- for (int e = 0; e < num_entries; e++) {
- std::string v;
- Add(test::RandomKey(&rnd, rnd.Skewed(4)),
- test::RandomString(&rnd, rnd.Skewed(5), &v).ToString());
- }
- Test(&rnd);
- }
- }
-}
-
-TEST(Harness, RandomizedLongDB) {
- Random rnd(test::RandomSeed());
- TestArgs args = { DB_TEST, false, 16, kNoCompression };
- Init(args);
- int num_entries = 100000;
- for (int e = 0; e < num_entries; e++) {
- std::string v;
- Add(test::RandomKey(&rnd, rnd.Skewed(4)),
- test::RandomString(&rnd, rnd.Skewed(5), &v).ToString());
- }
- Test(&rnd);
-
- // We must have created enough data to force merging
- int files = 0;
- for (int level = 0; level < db()->NumberLevels(); level++) {
- std::string value;
- char name[100];
- snprintf(name, sizeof(name), "rocksdb.num-files-at-level%d", level);
- ASSERT_TRUE(db()->GetProperty(name, &value));
- files += atoi(value.c_str());
- }
- ASSERT_GT(files, 0);
-}
-
-class MemTableTest { };
-
-TEST(MemTableTest, Simple) {
- InternalKeyComparator cmp(BytewiseComparator());
- auto table_factory = std::make_shared<SkipListFactory>();
- MemTable* memtable = new MemTable(cmp, table_factory);
- memtable->Ref();
- WriteBatch batch;
- Options options = GetDefaultOptions();
- WriteBatchInternal::SetSequence(&batch, 100);
- batch.Put(std::string("k1"), std::string("v1"));
- batch.Put(std::string("k2"), std::string("v2"));
- batch.Put(std::string("k3"), std::string("v3"));
- batch.Put(std::string("largekey"), std::string("vlarge"));
- ASSERT_TRUE(WriteBatchInternal::InsertInto(&batch, memtable, &options).ok());
-
- Iterator* iter = memtable->NewIterator();
- iter->SeekToFirst();
- while (iter->Valid()) {
- fprintf(stderr, "key: '%s' -> '%s'\n",
- iter->key().ToString().c_str(),
- iter->value().ToString().c_str());
- iter->Next();
- }
-
- delete iter;
- memtable->Unref();
-}
-
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "table/two_level_iterator.h"
-
-#include "rocksdb/options.h"
-#include "rocksdb/table.h"
-#include "table/block.h"
-#include "table/format.h"
-#include "table/iterator_wrapper.h"
-
-namespace rocksdb {
-
-namespace {
-
-typedef Iterator* (*BlockFunction)(void*, const ReadOptions&,
- const EnvOptions& soptions, const Slice&,
- bool for_compaction);
-
-class TwoLevelIterator: public Iterator {
- public:
- TwoLevelIterator(
- Iterator* index_iter,
- BlockFunction block_function,
- void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- bool for_compaction);
-
- virtual ~TwoLevelIterator();
-
- virtual void Seek(const Slice& target);
- virtual void SeekToFirst();
- virtual void SeekToLast();
- virtual void Next();
- virtual void Prev();
-
- virtual bool Valid() const {
- return data_iter_.Valid();
- }
- virtual Slice key() const {
- assert(Valid());
- return data_iter_.key();
- }
- virtual Slice value() const {
- assert(Valid());
- return data_iter_.value();
- }
- virtual Status status() const {
- // It'd be nice if status() returned a const Status& instead of a Status
- if (!index_iter_.status().ok()) {
- return index_iter_.status();
- } else if (data_iter_.iter() != nullptr && !data_iter_.status().ok()) {
- return data_iter_.status();
- } else {
- return status_;
- }
- }
-
- private:
- void SaveError(const Status& s) {
- if (status_.ok() && !s.ok()) status_ = s;
- }
- void SkipEmptyDataBlocksForward();
- void SkipEmptyDataBlocksBackward();
- void SetDataIterator(Iterator* data_iter);
- void InitDataBlock();
-
- BlockFunction block_function_;
- void* arg_;
- const ReadOptions options_;
- const EnvOptions& soptions_;
- Status status_;
- IteratorWrapper index_iter_;
- IteratorWrapper data_iter_; // May be nullptr
- // If data_iter_ is non-nullptr, then "data_block_handle_" holds the
- // "index_value" passed to block_function_ to create the data_iter_.
- std::string data_block_handle_;
- bool for_compaction_;
-};
-
-TwoLevelIterator::TwoLevelIterator(
- Iterator* index_iter,
- BlockFunction block_function,
- void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- bool for_compaction)
- : block_function_(block_function),
- arg_(arg),
- options_(options),
- soptions_(soptions),
- index_iter_(index_iter),
- data_iter_(nullptr),
- for_compaction_(for_compaction) {
-}
-
-TwoLevelIterator::~TwoLevelIterator() {
-}
-
-void TwoLevelIterator::Seek(const Slice& target) {
- index_iter_.Seek(target);
- InitDataBlock();
- if (data_iter_.iter() != nullptr) data_iter_.Seek(target);
- SkipEmptyDataBlocksForward();
-}
-
-void TwoLevelIterator::SeekToFirst() {
- index_iter_.SeekToFirst();
- InitDataBlock();
- if (data_iter_.iter() != nullptr) data_iter_.SeekToFirst();
- SkipEmptyDataBlocksForward();
-}
-
-void TwoLevelIterator::SeekToLast() {
- index_iter_.SeekToLast();
- InitDataBlock();
- if (data_iter_.iter() != nullptr) data_iter_.SeekToLast();
- SkipEmptyDataBlocksBackward();
-}
-
-void TwoLevelIterator::Next() {
- assert(Valid());
- data_iter_.Next();
- SkipEmptyDataBlocksForward();
-}
-
-void TwoLevelIterator::Prev() {
- assert(Valid());
- data_iter_.Prev();
- SkipEmptyDataBlocksBackward();
-}
-
-
-void TwoLevelIterator::SkipEmptyDataBlocksForward() {
- while (data_iter_.iter() == nullptr || (!data_iter_.Valid() &&
- !data_iter_.status().IsIncomplete())) {
- // Move to next block
- if (!index_iter_.Valid()) {
- SetDataIterator(nullptr);
- return;
- }
- index_iter_.Next();
- InitDataBlock();
- if (data_iter_.iter() != nullptr) data_iter_.SeekToFirst();
- }
-}
-
-void TwoLevelIterator::SkipEmptyDataBlocksBackward() {
- while (data_iter_.iter() == nullptr || (!data_iter_.Valid() &&
- !data_iter_.status().IsIncomplete())) {
- // Move to next block
- if (!index_iter_.Valid()) {
- SetDataIterator(nullptr);
- return;
- }
- index_iter_.Prev();
- InitDataBlock();
- if (data_iter_.iter() != nullptr) data_iter_.SeekToLast();
- }
-}
-
-void TwoLevelIterator::SetDataIterator(Iterator* data_iter) {
- if (data_iter_.iter() != nullptr) SaveError(data_iter_.status());
- data_iter_.Set(data_iter);
-}
-
-void TwoLevelIterator::InitDataBlock() {
- if (!index_iter_.Valid()) {
- SetDataIterator(nullptr);
- } else {
- Slice handle = index_iter_.value();
- if (data_iter_.iter() != nullptr
- && handle.compare(data_block_handle_) == 0) {
- // data_iter_ is already constructed with this iterator, so
- // no need to change anything
- } else {
- Iterator* iter = (*block_function_)(arg_, options_, soptions_, handle,
- for_compaction_);
- data_block_handle_.assign(handle.data(), handle.size());
- SetDataIterator(iter);
- }
- }
-}
-
-} // namespace
-
-Iterator* NewTwoLevelIterator(
- Iterator* index_iter,
- BlockFunction block_function,
- void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- bool for_compaction) {
- return new TwoLevelIterator(index_iter, block_function, arg,
- options, soptions, for_compaction);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/iterator.h"
-#include "rocksdb/env.h"
-
-namespace rocksdb {
-
-struct ReadOptions;
-
-// Return a new two level iterator. A two-level iterator contains an
-// index iterator whose values point to a sequence of blocks where
-// each block is itself a sequence of key,value pairs. The returned
-// two-level iterator yields the concatenation of all key/value pairs
-// in the sequence of blocks. Takes ownership of "index_iter" and
-// will delete it when no longer needed.
-//
-// Uses a supplied function to convert an index_iter value into
-// an iterator over the contents of the corresponding block.
-extern Iterator* NewTwoLevelIterator(
- Iterator* index_iter,
- Iterator* (*block_function)(
- void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- const Slice& index_value,
- bool for_compaction),
- void* arg,
- const ReadOptions& options,
- const EnvOptions& soptions,
- bool for_compaction = false);
-
-} // namespace rocksdb
+++ /dev/null
-#include <cstdio>
-#include <vector>
-#include <atomic>
-
-#include "rocksdb/env.h"
-#include "util/blob_store.h"
-#include "util/testutil.h"
-
-#define KB 1024LL
-#define MB 1024*1024LL
-// BlobStore does costly asserts to make sure it's running correctly, which
-// significantly impacts benchmark runtime.
-// NDEBUG will compile out those asserts.
-#ifndef NDEBUG
-#define NDEBUG
-#endif
-
-using namespace rocksdb;
-using namespace std;
-
-// used by all threads
-uint64_t timeout_sec;
-Env *env;
-BlobStore* bs;
-
-static std::string RandomString(Random* rnd, uint64_t len) {
- std::string r;
- test::RandomString(rnd, len, &r);
- return r;
-}
-
-struct Result {
- uint32_t writes;
- uint32_t reads;
- uint32_t deletes;
- uint64_t data_written;
- uint64_t data_read;
-
- void print() {
- printf("Total writes = %u\n", writes);
- printf("Total reads = %u\n", reads);
- printf("Total deletes = %u\n", deletes);
- printf("Write throughput = %lf MB/s\n",
- (double)data_written / (1024*1024.0) / timeout_sec);
- printf("Read throughput = %lf MB/s\n",
- (double)data_read / (1024*1024.0) / timeout_sec);
- printf("Total throughput = %lf MB/s\n",
- (double)(data_read + data_written) / (1024*1024.0) / timeout_sec);
- }
-
- Result() {
- writes = reads = deletes = data_read = data_written = 0;
- }
-
- Result (uint32_t writes, uint32_t reads, uint32_t deletes,
- uint64_t data_written, uint64_t data_read) :
- writes(writes), reads(reads), deletes(deletes),
- data_written(data_written), data_read(data_read) {}
-
-};
-
-Result operator + (const Result &a, const Result &b) {
- return Result(a.writes + b.writes, a.reads + b.reads,
- a.deletes + b.deletes, a.data_written + b.data_written,
- a.data_read + b.data_read);
-}
-
-struct WorkerThread {
- uint64_t data_size_from, data_size_to;
- double read_ratio;
- uint64_t working_set_size; // start deleting once you reach this
- Result result;
- atomic<bool> stopped;
-
- WorkerThread(uint64_t data_size_from, uint64_t data_size_to,
- double read_ratio, uint64_t working_set_size) :
- data_size_from(data_size_from), data_size_to(data_size_to),
- read_ratio(read_ratio), working_set_size(working_set_size),
- stopped(false) {}
-
- WorkerThread(const WorkerThread& wt) :
- data_size_from(wt.data_size_from), data_size_to(wt.data_size_to),
- read_ratio(wt.read_ratio), working_set_size(wt.working_set_size),
- stopped(false) {}
-};
-
-static void WorkerThreadBody(void* arg) {
- WorkerThread* t = reinterpret_cast<WorkerThread*>(arg);
- Random rnd(5);
- string buf;
- vector<pair<Blob, uint64_t>> blobs;
- vector<string> random_strings;
-
- for (int i = 0; i < 10; ++i) {
- random_strings.push_back(RandomString(&rnd, t->data_size_to));
- }
-
- uint64_t total_size = 0;
-
- uint64_t start_micros = env->NowMicros();
- while (env->NowMicros() - start_micros < timeout_sec * 1000 * 1000) {
- if (blobs.size() && rand() < RAND_MAX * t->read_ratio) {
- // read
- int bi = rand() % blobs.size();
- Status s = bs->Get(blobs[bi].first, &buf);
- assert(s.ok());
- t->result.data_read += buf.size();
- t->result.reads++;
- } else {
- // write
- uint64_t size = rand() % (t->data_size_to - t->data_size_from) +
- t->data_size_from;
- total_size += size;
- string put_str = random_strings[rand() % random_strings.size()];
- blobs.push_back(make_pair(Blob(), size));
- Status s = bs->Put(Slice(put_str.data(), size), &blobs.back().first);
- assert(s.ok());
- t->result.data_written += size;
- t->result.writes++;
- }
-
- while (total_size >= t->working_set_size) {
- // delete random
- int bi = rand() % blobs.size();
- total_size -= blobs[bi].second;
- bs->Delete(blobs[bi].first);
- blobs.erase(blobs.begin() + bi);
- t->result.deletes++;
- }
- }
- t->stopped.store(true);
-}
-
-Result StartBenchmark(vector<WorkerThread*>& config) {
- for (auto w : config) {
- env->StartThread(WorkerThreadBody, w);
- }
-
- Result result;
-
- for (auto w : config) {
- while (!w->stopped.load());
- result = result + w->result;
- }
-
- for (auto w : config) {
- delete w;
- }
-
- delete bs;
-
- return result;
-}
-
-vector<WorkerThread*> SetupBenchmarkBalanced() {
- string test_path;
- env->GetTestDirectory(&test_path);
- test_path.append("/blob_store");
-
- // config start
- uint32_t block_size = 16*KB;
- uint32_t file_size = 1*MB;
- double read_write_ratio = 0.5;
- uint64_t data_read_from = 16*KB;
- uint64_t data_read_to = 32*KB;
- int number_of_threads = 10;
- uint64_t working_set_size = 5*MB;
- timeout_sec = 5;
- // config end
-
- bs = new BlobStore(test_path, block_size, file_size / block_size, 10000, env);
-
- vector <WorkerThread*> config;
-
- for (int i = 0; i < number_of_threads; ++i) {
- config.push_back(new WorkerThread(data_read_from,
- data_read_to,
- read_write_ratio,
- working_set_size));
- };
-
- return config;
-}
-
-vector<WorkerThread*> SetupBenchmarkWriteHeavy() {
- string test_path;
- env->GetTestDirectory(&test_path);
- test_path.append("/blob_store");
-
- // config start
- uint32_t block_size = 16*KB;
- uint32_t file_size = 1*MB;
- double read_write_ratio = 0.1;
- uint64_t data_read_from = 16*KB;
- uint64_t data_read_to = 32*KB;
- int number_of_threads = 10;
- uint64_t working_set_size = 5*MB;
- timeout_sec = 5;
- // config end
-
- bs = new BlobStore(test_path, block_size, file_size / block_size, 10000, env);
-
- vector <WorkerThread*> config;
-
- for (int i = 0; i < number_of_threads; ++i) {
- config.push_back(new WorkerThread(data_read_from,
- data_read_to,
- read_write_ratio,
- working_set_size));
- };
-
- return config;
-}
-
-vector<WorkerThread*> SetupBenchmarkReadHeavy() {
- string test_path;
- env->GetTestDirectory(&test_path);
- test_path.append("/blob_store");
-
- // config start
- uint32_t block_size = 16*KB;
- uint32_t file_size = 1*MB;
- double read_write_ratio = 0.9;
- uint64_t data_read_from = 16*KB;
- uint64_t data_read_to = 32*KB;
- int number_of_threads = 10;
- uint64_t working_set_size = 5*MB;
- timeout_sec = 5;
- // config end
-
- bs = new BlobStore(test_path, block_size, file_size / block_size, 10000, env);
-
- vector <WorkerThread*> config;
-
- for (int i = 0; i < number_of_threads; ++i) {
- config.push_back(new WorkerThread(data_read_from,
- data_read_to,
- read_write_ratio,
- working_set_size));
- };
-
- return config;
-}
-
-int main(int argc, const char** argv) {
- srand(33);
- env = Env::Default();
-
- {
- printf("--- Balanced read/write benchmark ---\n");
- vector <WorkerThread*> config = SetupBenchmarkBalanced();
- Result r = StartBenchmark(config);
- r.print();
- }
- {
- printf("--- Write heavy benchmark ---\n");
- vector <WorkerThread*> config = SetupBenchmarkWriteHeavy();
- Result r = StartBenchmark(config);
- r.print();
- }
- {
- printf("--- Read heavy benchmark ---\n");
- vector <WorkerThread*> config = SetupBenchmarkReadHeavy();
- Result r = StartBenchmark(config);
- r.print();
- }
-
- return 0;
-}
+++ /dev/null
-#! /usr/bin/env python
-import os
-import re
-import sys
-import time
-import random
-import getopt
-import logging
-import tempfile
-import subprocess
-
-# This script runs and kills db_stress multiple times. It checks consistency
-# in case of unsafe crashes in Rocksdb.
-
-def main(argv):
- try:
- opts, args = getopt.getopt(argv, "hd:t:i:o:b:")
- except getopt.GetoptError:
- print("db_crashtest.py -d <duration_test> -t <#threads> "
- "-i <interval for one run> -o <ops_per_thread> "
- "-b <write_buffer_size>\n")
- sys.exit(2)
-
- # default values, will be overridden by cmdline args
- interval = 120 # time for one db_stress instance to run
- duration = 6000 # total time for this script to test db_stress
- threads = 32
- # since we will be killing anyway, use large value for ops_per_thread
- ops_per_thread = 100000000
- write_buf_size = 4 * 1024 * 1024
-
- for opt, arg in opts:
- if opt == '-h':
- print("db_crashtest.py -d <duration_test>"
- " -t <#threads> -i <interval for one run>"
- " -o <ops_per_thread> -b <write_buffer_size>\n")
- sys.exit()
- elif opt == "-d":
- duration = int(arg)
- elif opt == "-t":
- threads = int(arg)
- elif opt == "-i":
- interval = int(arg)
- elif opt == "-o":
- ops_per_thread = int(arg)
- elif opt == "-b":
- write_buf_size = int(arg)
- else:
- print("db_crashtest.py -d <duration_test>"
- " -t <#threads> -i <interval for one run>"
- " -o <ops_per_thread> -b <write_buffer_size>\n")
- sys.exit(2)
-
- exit_time = time.time() + duration
-
- print("Running blackbox-crash-test with \ninterval_between_crash="
- + str(interval) + "\ntotal-duration=" + str(duration)
- + "\nthreads=" + str(threads) + "\nops_per_thread="
- + str(ops_per_thread) + "\nwrite_buffer_size="
- + str(write_buf_size) + "\n")
-
- while time.time() < exit_time:
- run_had_errors = False
- killtime = time.time() + interval
-
- cmd = re.sub('\s+', ' ', """
- ./db_stress
- --test_batches_snapshots=1
- --ops_per_thread=%s
- --threads=%s
- --write_buffer_size=%s
- --destroy_db_initially=0
- --reopen=0
- --readpercent=45
- --prefixpercent=5
- --writepercent=35
- --delpercent=5
- --iterpercent=10
- --db=%s
- --max_key=100000000
- --disable_seek_compaction=%s
- --mmap_read=%s
- --block_size=16384
- --cache_size=1048576
- --open_files=500000
- --verify_checksum=1
- --sync=%s
- --disable_wal=0
- --disable_data_sync=%s
- --target_file_size_base=2097152
- --target_file_size_multiplier=2
- --max_write_buffer_number=3
- --max_background_compactions=20
- --max_bytes_for_level_base=10485760
- --filter_deletes=%s
- """ % (ops_per_thread,
- threads,
- write_buf_size,
- tempfile.mkdtemp(),
- random.randint(0, 1),
- random.randint(0, 1),
- random.randint(0, 1),
- random.randint(0, 1),
- random.randint(0, 1)))
-
- child = subprocess.Popen([cmd],
- stderr=subprocess.PIPE, shell=True)
- print("Running db_stress with pid=%d: %s\n\n"
- % (child.pid, cmd))
-
- while time.time() < killtime:
- time.sleep(10)
-
- if child.poll() is not None:
- print("WARNING: db_stress ended before kill: exitcode=%d\n"
- % child.returncode)
- else:
- child.kill()
- print("KILLED %d\n" % child.pid)
- time.sleep(1) # time to stabilize after a kill
-
- while True:
- line = child.stderr.readline().strip()
- if line != '':
- run_had_errors = True
- print('***' + line + '^')
- else:
- break
-
- if run_had_errors:
- sys.exit(2)
-
- time.sleep(1) # time to stabilize before the next run
-
-if __name__ == "__main__":
- sys.exit(main(sys.argv[1:]))
+++ /dev/null
-#! /usr/bin/env python
-import os
-import re
-import sys
-import time
-import random
-import getopt
-import logging
-import tempfile
-import subprocess
-
-# This python script runs db_stress multiple times. Some runs with
-# kill_random_test that causes rocksdb to crash at various points in code.
-
-def main(argv):
- try:
- opts, args = getopt.getopt(argv, "hd:t:k:o:b:")
- except getopt.GetoptError:
- print str(getopt.GetoptError)
- print "db_crashtest2.py -d <duration_test> -t <#threads> " \
- "-k <kills with prob 1/k> -o <ops_per_thread> "\
- "-b <write_buffer_size>\n"
- sys.exit(2)
-
- # default values, will be overridden by cmdline args
- kill_random_test = 97 # kill with probability 1/97 by default
- duration = 10000 # total time for this script to test db_stress
- threads = 32
- ops_per_thread = 200000
- write_buf_size = 4 * 1024 * 1024
-
- for opt, arg in opts:
- if opt == '-h':
- print "db_crashtest2.py -d <duration_test> -t <#threads> " \
- "-k <kills with prob 1/k> -o <ops_per_thread> " \
- "-b <write_buffer_size>\n"
- sys.exit()
- elif opt == "-d":
- duration = int(arg)
- elif opt == "-t":
- threads = int(arg)
- elif opt == "-k":
- kill_random_test = int(arg)
- elif opt == "-o":
- ops_per_thread = int(arg)
- elif opt == "-b":
- write_buf_size = int(arg)
- else:
- print "unrecognized option " + str(opt) + "\n"
- print "db_crashtest2.py -d <duration_test> -t <#threads> " \
- "-k <kills with prob 1/k> -o <ops_per_thread> " \
- "-b <write_buffer_size>\n"
- sys.exit(2)
-
- exit_time = time.time() + duration
-
- print "Running whitebox-crash-test with \ntotal-duration=" + str(duration) \
- + "\nthreads=" + str(threads) + "\nops_per_thread=" \
- + str(ops_per_thread) + "\nwrite_buffer_size=" \
- + str(write_buf_size) + "\n"
-
- total_check_mode = 3
- check_mode = 0
-
- while time.time() < exit_time:
- killoption = ""
- if check_mode == 0:
- # run with kill_random_test
- killoption = " --kill_random_test=" + str(kill_random_test)
- # use large ops per thread since we will kill it anyway
- additional_opts = "--ops_per_thread=" + \
- str(100 * ops_per_thread) + killoption
- elif check_mode == 1:
- # normal run with universal compaction mode
- additional_opts = "--ops_per_thread=" + str(ops_per_thread) + \
- " --compaction_style=1"
- else:
- # nomral run
- additional_opts = "--ops_per_thread=" + str(ops_per_thread)
-
- cmd = re.sub('\s+', ' ', """
- ./db_stress
- --test_batches_snapshots=%s
- --threads=%s
- --write_buffer_size=%s
- --destroy_db_initially=0
- --reopen=0
- --readpercent=45
- --prefixpercent=5
- --writepercent=35
- --delpercent=5
- --iterpercent=10
- --db=%s
- --max_key=100000000
- --disable_seek_compaction=%s
- --mmap_read=%s
- --block_size=16384
- --cache_size=1048576
- --open_files=500000
- --verify_checksum=1
- --sync=%s
- --disable_wal=0
- --disable_data_sync=%s
- --target_file_size_base=2097152
- --target_file_size_multiplier=2
- --max_write_buffer_number=3
- --max_background_compactions=20
- --max_bytes_for_level_base=10485760
- --filter_deletes=%s
- %s
- """ % (random.randint(0, 1),
- threads,
- write_buf_size,
- tempfile.mkdtemp(),
- random.randint(0, 1),
- random.randint(0, 1),
- random.randint(0, 1),
- random.randint(0, 1),
- random.randint(0, 1),
- additional_opts))
-
- print "Running:" + cmd + "\n"
-
- popen = subprocess.Popen([cmd], stdout=subprocess.PIPE,
- stderr=subprocess.STDOUT,
- shell=True)
- stdoutdata, stderrdata = popen.communicate()
- retncode = popen.returncode
- msg = ("check_mode={0}, kill option={1}, exitcode={2}\n".format(
- check_mode, killoption, retncode))
- print msg
- print stdoutdata
-
- expected = False
- if (killoption == '') and (retncode == 0):
- # we expect zero retncode if no kill option
- expected = True
- elif killoption != '' and retncode < 0:
- # we expect negative retncode if kill option was given
- expected = True
-
- if not expected:
- print "TEST FAILED. See kill option and exit code above!!!\n"
- sys.exit(1)
-
- stdoutdata = stdoutdata.lower()
- errorcount = (stdoutdata.count('error') -
- stdoutdata.count('got errors 0 times'))
- print "#times error occured in output is " + str(errorcount) + "\n"
-
- if (errorcount > 0):
- print "TEST FAILED. Output has 'error'!!!\n"
- sys.exit(2)
- if (stdoutdata.find('fail') >= 0):
- print "TEST FAILED. Output has 'fail'!!!\n"
- sys.exit(2)
-
- check_mode = (check_mode + 1) % total_check_mode
-
- time.sleep(1) # time to stabilize after a kill
-
-if __name__ == "__main__":
- sys.exit(main(sys.argv[1:]))
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <cstdio>
-
-#include <gflags/gflags.h>
-
-#include "db/write_batch_internal.h"
-#include "rocksdb/db.h"
-#include "rocksdb/types.h"
-#include "port/atomic_pointer.h"
-#include "util/testutil.h"
-
-
-// Run a thread to perform Put's.
-// Another thread uses GetUpdatesSince API to keep getting the updates.
-// options :
-// --num_inserts = the num of inserts the first thread should perform.
-// --wal_ttl = the wal ttl for the run.
-
-using namespace rocksdb;
-
-struct DataPumpThread {
- size_t no_records;
- DB* db; // Assumption DB is Open'ed already.
-};
-
-static std::string RandomString(Random* rnd, int len) {
- std::string r;
- test::RandomString(rnd, len, &r);
- return r;
-}
-
-static void DataPumpThreadBody(void* arg) {
- DataPumpThread* t = reinterpret_cast<DataPumpThread*>(arg);
- DB* db = t->db;
- Random rnd(301);
- size_t i = 0;
- while(i++ < t->no_records) {
- if(!db->Put(WriteOptions(), Slice(RandomString(&rnd, 500)),
- Slice(RandomString(&rnd, 500))).ok()) {
- fprintf(stderr, "Error in put\n");
- exit(1);
- }
- }
-}
-
-struct ReplicationThread {
- port::AtomicPointer stop;
- DB* db;
- volatile size_t no_read;
-};
-
-static void ReplicationThreadBody(void* arg) {
- ReplicationThread* t = reinterpret_cast<ReplicationThread*>(arg);
- DB* db = t->db;
- unique_ptr<TransactionLogIterator> iter;
- SequenceNumber currentSeqNum = 1;
- while (t->stop.Acquire_Load() != nullptr) {
- iter.reset();
- Status s;
- while(!db->GetUpdatesSince(currentSeqNum, &iter).ok()) {
- if (t->stop.Acquire_Load() == nullptr) {
- return;
- }
- }
- fprintf(stderr, "Refreshing iterator\n");
- for(;iter->Valid(); iter->Next(), t->no_read++, currentSeqNum++) {
- BatchResult res = iter->GetBatch();
- if (res.sequence != currentSeqNum) {
- fprintf(stderr, "Missed a seq no. b/w %ld and %ld\n", currentSeqNum,
- res.sequence);
- exit(1);
- }
- }
- }
-}
-
-DEFINE_uint64(num_inserts, 1000, "the num of inserts the first thread should"
- " perform.");
-DEFINE_uint64(wal_ttl_seconds, 1000, "the wal ttl for the run(in seconds)");
-DEFINE_uint64(wal_size_limit_MB, 10, "the wal size limit for the run"
- "(in MB)");
-
-int main(int argc, const char** argv) {
- google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
- " --num_inserts=<num_inserts> --wal_ttl_seconds=<WAL_ttl_seconds>" +
- " --wal_size_limit_MB=<WAL_size_limit_MB>");
- google::ParseCommandLineFlags(&argc, const_cast<char***>(&argv), true);
-
- Env* env = Env::Default();
- std::string default_db_path;
- env->GetTestDirectory(&default_db_path);
- default_db_path += "db_repl_stress";
- Options options;
- options.create_if_missing = true;
- options.WAL_ttl_seconds = FLAGS_wal_ttl_seconds;
- options.WAL_size_limit_MB = FLAGS_wal_size_limit_MB;
- DB* db;
- DestroyDB(default_db_path, options);
-
- Status s = DB::Open(options, default_db_path, &db);
-
- if (!s.ok()) {
- fprintf(stderr, "Could not open DB due to %s\n", s.ToString().c_str());
- exit(1);
- }
-
- DataPumpThread dataPump;
- dataPump.no_records = FLAGS_num_inserts;
- dataPump.db = db;
- env->StartThread(DataPumpThreadBody, &dataPump);
-
- ReplicationThread replThread;
- replThread.db = db;
- replThread.no_read = 0;
- replThread.stop.Release_Store(env); // store something to make it non-null.
-
- env->StartThread(ReplicationThreadBody, &replThread);
- while(replThread.no_read < FLAGS_num_inserts);
- replThread.stop.Release_Store(nullptr);
- if (replThread.no_read < dataPump.no_records) {
- // no. read should be => than inserted.
- fprintf(stderr, "No. of Record's written and read not same\nRead : %ld"
- " Written : %ld\n", replThread.no_read, dataPump.no_records);
- exit(1);
- }
- fprintf(stderr, "Successful!\n");
- exit(0);
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// The test uses an array to compare against values written to the database.
-// Keys written to the array are in 1:1 correspondence to the actual values in
-// the database according to the formula in the function GenerateValue.
-
-// Space is reserved in the array from 0 to FLAGS_max_key and values are
-// randomly written/deleted/read from those positions. During verification we
-// compare all the positions in the array. To shorten/elongate the running
-// time, you could change the settings: FLAGS_max_key, FLAGS_ops_per_thread,
-// (sometimes also FLAGS_threads).
-//
-// NOTE that if FLAGS_test_batches_snapshots is set, the test will have
-// different behavior. See comment of the flag for details.
-
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <gflags/gflags.h>
-#include "db/db_impl.h"
-#include "db/version_set.h"
-#include "db/db_statistics.h"
-#include "rocksdb/cache.h"
-#include "utilities/utility_db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/write_batch.h"
-#include "rocksdb/statistics.h"
-#include "port/port.h"
-#include "util/coding.h"
-#include "util/crc32c.h"
-#include "util/histogram.h"
-#include "util/mutexlock.h"
-#include "util/random.h"
-#include "util/testutil.h"
-#include "util/logging.h"
-#include "utilities/ttl/db_ttl.h"
-#include "hdfs/env_hdfs.h"
-#include "utilities/merge_operators.h"
-
-static const long KB = 1024;
-
-
-static bool ValidateUint32Range(const char* flagname, uint64_t value) {
- if (value > std::numeric_limits<uint32_t>::max()) {
- fprintf(stderr, "Invalid value for --%s: %lu, overflow\n", flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_uint64(seed, 2341234, "Seed for PRNG");
-static const bool FLAGS_seed_dummy =
- google::RegisterFlagValidator(&FLAGS_seed, &ValidateUint32Range);
-
-DEFINE_int64(max_key, 1 * KB * KB * KB,
- "Max number of key/values to place in database");
-
-DEFINE_bool(test_batches_snapshots, false,
- "If set, the test uses MultiGet(), MultiPut() and MultiDelete()"
- " which read/write/delete multiple keys in a batch. In this mode,"
- " we do not verify db content by comparing the content with the "
- "pre-allocated array. Instead, we do partial verification inside"
- " MultiGet() by checking various values in a batch. Benefit of"
- " this mode:\n"
- "\t(a) No need to acquire mutexes during writes (less cache "
- "flushes in multi-core leading to speed up)\n"
- "\t(b) No long validation at the end (more speed up)\n"
- "\t(c) Test snapshot and atomicity of batch writes");
-
-DEFINE_int32(threads, 32, "Number of concurrent threads to run.");
-
-DEFINE_int32(ttl, -1,
- "Opens the db with this ttl value if this is not -1. "
- "Carefully specify a large value such that verifications on "
- "deleted values don't fail");
-
-DEFINE_int32(value_size_mult, 8,
- "Size of value will be this number times rand_int(1,3) bytes");
-
-DEFINE_bool(verify_before_write, false, "Verify before write");
-
-DEFINE_bool(histogram, false, "Print histogram of operation timings");
-
-DEFINE_bool(destroy_db_initially, true,
- "Destroys the database dir before start if this is true");
-
-DEFINE_bool (verbose, false, "Verbose");
-
-DEFINE_int32(write_buffer_size, rocksdb::Options().write_buffer_size,
- "Number of bytes to buffer in memtable before compacting");
-
-DEFINE_int32(max_write_buffer_number,
- rocksdb::Options().max_write_buffer_number,
- "The number of in-memory memtables. "
- "Each memtable is of size FLAGS_write_buffer_size.");
-
-DEFINE_int32(min_write_buffer_number_to_merge,
- rocksdb::Options().min_write_buffer_number_to_merge,
- "The minimum number of write buffers that will be merged together "
- "before writing to storage. This is cheap because it is an "
- "in-memory merge. If this feature is not enabled, then all these "
- "write buffers are flushed to L0 as separate files and this "
- "increases read amplification because a get request has to check "
- "in all of these files. Also, an in-memory merge may result in "
- "writing less data to storage if there are duplicate records in"
- " each of these individual write buffers.");
-
-DEFINE_int32(open_files, rocksdb::Options().max_open_files,
- "Maximum number of files to keep open at the same time "
- "(use default if == 0)");
-
-DEFINE_int64(compressed_cache_size, -1,
- "Number of bytes to use as a cache of compressed data."
- " Negative means use default settings.");
-
-DEFINE_int32(compaction_style, rocksdb::Options().compaction_style, "");
-
-DEFINE_int32(level0_file_num_compaction_trigger,
- rocksdb::Options().level0_file_num_compaction_trigger,
- "Level0 compaction start trigger");
-
-DEFINE_int32(level0_slowdown_writes_trigger,
- rocksdb::Options().level0_slowdown_writes_trigger,
- "Number of files in level-0 that will slow down writes");
-
-DEFINE_int32(level0_stop_writes_trigger,
- rocksdb::Options().level0_stop_writes_trigger,
- "Number of files in level-0 that will trigger put stop.");
-
-DEFINE_int32(block_size, rocksdb::Options().block_size,
- "Number of bytes in a block.");
-
-DEFINE_int32(max_background_compactions,
- rocksdb::Options().max_background_compactions,
- "The maximum number of concurrent background compactions "
- "that can occur in parallel.");
-
-DEFINE_int32(universal_size_ratio, 0, "The ratio of file sizes that trigger"
- " compaction in universal style");
-
-DEFINE_int32(universal_min_merge_width, 0, "The minimum number of files to "
- "compact in universal style compaction");
-
-DEFINE_int32(universal_max_merge_width, 0, "The max number of files to compact"
- " in universal style compaction");
-
-DEFINE_int32(universal_max_size_amplification_percent, 0,
- "The max size amplification for universal style compaction");
-
-DEFINE_int64(cache_size, 2 * KB * KB * KB,
- "Number of bytes to use as a cache of uncompressed data.");
-
-static bool ValidateInt32Positive(const char* flagname, int32_t value) {
- if (value < 0) {
- fprintf(stderr, "Invalid value for --%s: %d, must be >=0\n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(reopen, 10, "Number of times database reopens");
-static const bool FLAGS_reopen_dummy =
- google::RegisterFlagValidator(&FLAGS_reopen, &ValidateInt32Positive);
-
-DEFINE_int32(bloom_bits, 10, "Bloom filter bits per key. "
- "Negative means use default settings.");
-
-DEFINE_string(db, "", "Use the db with the following name.");
-
-DEFINE_bool(verify_checksum, false,
- "Verify checksum for every block read from storage");
-
-DEFINE_bool(mmap_read, rocksdb::EnvOptions().use_mmap_reads,
- "Allow reads to occur via mmap-ing files");
-
-// Database statistics
-static std::shared_ptr<rocksdb::Statistics> dbstats;
-DEFINE_bool(statistics, false, "Create database statistics");
-
-DEFINE_bool(sync, false, "Sync all writes to disk");
-
-DEFINE_bool(disable_data_sync, false,
- "If true, do not wait until data is synced to disk.");
-
-DEFINE_bool(use_fsync, false, "If true, issue fsync instead of fdatasync");
-
-DEFINE_int32(kill_random_test, 0,
- "If non-zero, kill at various points in source code with "
- "probability 1/this");
-static const bool FLAGS_kill_random_test_dummy =
- google::RegisterFlagValidator(&FLAGS_kill_random_test,
- &ValidateInt32Positive);
-extern int rocksdb_kill_odds;
-
-DEFINE_bool(disable_wal, false, "If true, do not write WAL for write.");
-
-DEFINE_int32(target_file_size_base, 64 * KB,
- "Target level-1 file size for compaction");
-
-DEFINE_int32(target_file_size_multiplier, 1,
- "A multiplier to compute targe level-N file size (N >= 2)");
-
-DEFINE_uint64(max_bytes_for_level_base, 256 * KB, "Max bytes for level-1");
-
-DEFINE_int32(max_bytes_for_level_multiplier, 2,
- "A multiplier to compute max bytes for level-N (N >= 2)");
-
-static bool ValidateInt32Percent(const char* flagname, int32_t value) {
- if (value < 0 || value>100) {
- fprintf(stderr, "Invalid value for --%s: %d, 0<= pct <=100 \n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(readpercent, 10,
- "Ratio of reads to total workload (expressed as a percentage)");
-static const bool FLAGS_readpercent_dummy =
- google::RegisterFlagValidator(&FLAGS_readpercent, &ValidateInt32Percent);
-
-DEFINE_int32(prefixpercent, 20,
- "Ratio of prefix iterators to total workload (expressed as a"
- " percentage)");
-static const bool FLAGS_prefixpercent_dummy =
- google::RegisterFlagValidator(&FLAGS_prefixpercent, &ValidateInt32Percent);
-
-DEFINE_int32(writepercent, 45,
- " Ratio of deletes to total workload (expressed as a percentage)");
-static const bool FLAGS_writepercent_dummy =
- google::RegisterFlagValidator(&FLAGS_writepercent, &ValidateInt32Percent);
-
-DEFINE_int32(delpercent, 15,
- "Ratio of deletes to total workload (expressed as a percentage)");
-static const bool FLAGS_delpercent_dummy =
- google::RegisterFlagValidator(&FLAGS_delpercent, &ValidateInt32Percent);
-
-DEFINE_int32(iterpercent, 10, "Ratio of iterations to total workload"
- " (expressed as a percentage)");
-static const bool FLAGS_iterpercent_dummy =
- google::RegisterFlagValidator(&FLAGS_iterpercent, &ValidateInt32Percent);
-
-DEFINE_uint64(num_iterations, 10, "Number of iterations per MultiIterate run");
-static const bool FLAGS_num_iterations_dummy =
- google::RegisterFlagValidator(&FLAGS_num_iterations, &ValidateUint32Range);
-
-DEFINE_bool(disable_seek_compaction, false,
- "Option to disable compation triggered by read.");
-
-DEFINE_uint64(delete_obsolete_files_period_micros, 0,
- "Option to delete obsolete files periodically"
- "0 means that obsolete files are "
- " deleted after every compaction run.");
-
-enum rocksdb::CompressionType StringToCompressionType(const char* ctype) {
- assert(ctype);
-
- if (!strcasecmp(ctype, "none"))
- return rocksdb::kNoCompression;
- else if (!strcasecmp(ctype, "snappy"))
- return rocksdb::kSnappyCompression;
- else if (!strcasecmp(ctype, "zlib"))
- return rocksdb::kZlibCompression;
- else if (!strcasecmp(ctype, "bzip2"))
- return rocksdb::kBZip2Compression;
-
- fprintf(stdout, "Cannot parse compression type '%s'\n", ctype);
- return rocksdb::kSnappyCompression; //default value
-}
-DEFINE_string(compression_type, "snappy",
- "Algorithm to use to compress the database");
-static enum rocksdb::CompressionType FLAGS_compression_type_e =
- rocksdb::kSnappyCompression;
-
-DEFINE_string(hdfs, "", "Name of hdfs environment");
-// posix or hdfs environment
-static rocksdb::Env* FLAGS_env = rocksdb::Env::Default();
-
-DEFINE_uint64(ops_per_thread, 600000, "Number of operations per thread.");
-static const bool FLAGS_ops_per_thread_dummy =
- google::RegisterFlagValidator(&FLAGS_ops_per_thread, &ValidateUint32Range);
-
-DEFINE_uint64(log2_keys_per_lock, 2, "Log2 of number of keys per lock");
-static const bool FLAGS_log2_keys_per_lock_dummy =
- google::RegisterFlagValidator(&FLAGS_log2_keys_per_lock,
- &ValidateUint32Range);
-
-DEFINE_int32(purge_redundant_percent, 50,
- "Percentage of times we want to purge redundant keys in memory "
- "before flushing");
-static const bool FLAGS_purge_redundant_percent_dummy =
- google::RegisterFlagValidator(&FLAGS_purge_redundant_percent,
- &ValidateInt32Percent);
-
-DEFINE_bool(filter_deletes, false, "On true, deletes use KeyMayExist to drop"
- " the delete if key not present");
-
-enum RepFactory {
- kSkipList,
- kPrefixHash,
- kUnsorted,
- kVectorRep
-};
-enum RepFactory StringToRepFactory(const char* ctype) {
- assert(ctype);
-
- if (!strcasecmp(ctype, "skip_list"))
- return kSkipList;
- else if (!strcasecmp(ctype, "prefix_hash"))
- return kPrefixHash;
- else if (!strcasecmp(ctype, "unsorted"))
- return kUnsorted;
- else if (!strcasecmp(ctype, "vector"))
- return kVectorRep;
-
- fprintf(stdout, "Cannot parse memreptable %s\n", ctype);
- return kSkipList;
-}
-static enum RepFactory FLAGS_rep_factory;
-DEFINE_string(memtablerep, "skip_list", "");
-
-static bool ValidatePrefixSize(const char* flagname, int32_t value) {
- if (value < 0 || value>=2000000000) {
- fprintf(stderr, "Invalid value for --%s: %d. 0<= PrefixSize <=2000000000\n",
- flagname, value);
- return false;
- }
- return true;
-}
-DEFINE_int32(prefix_size, 0, "Control the prefix size for PrefixHashRep");
-static const bool FLAGS_prefix_size_dummy =
- google::RegisterFlagValidator(&FLAGS_prefix_size, &ValidatePrefixSize);
-
-DEFINE_bool(use_merge, false, "On true, replaces all writes with a Merge "
- "that behaves like a Put");
-
-
-namespace rocksdb {
-
-// convert long to a big-endian slice key
-static std::string Key(long val) {
- std::string little_endian_key;
- std::string big_endian_key;
- PutFixed64(&little_endian_key, val);
- assert(little_endian_key.size() == sizeof(val));
- big_endian_key.resize(sizeof(val));
- for (int i=0; i<(int)sizeof(val); i++) {
- big_endian_key[i] = little_endian_key[sizeof(val) - 1 - i];
- }
- return big_endian_key;
-}
-
-class StressTest;
-namespace {
-
-class Stats {
- private:
- double start_;
- double finish_;
- double seconds_;
- long done_;
- long gets_;
- long prefixes_;
- long writes_;
- long deletes_;
- long iterator_size_sums_;
- long founds_;
- long iterations_;
- long errors_;
- int next_report_;
- size_t bytes_;
- double last_op_finish_;
- HistogramImpl hist_;
-
- public:
- Stats() { }
-
- void Start() {
- next_report_ = 100;
- hist_.Clear();
- done_ = 0;
- gets_ = 0;
- prefixes_ = 0;
- writes_ = 0;
- deletes_ = 0;
- iterator_size_sums_ = 0;
- founds_ = 0;
- iterations_ = 0;
- errors_ = 0;
- bytes_ = 0;
- seconds_ = 0;
- start_ = FLAGS_env->NowMicros();
- last_op_finish_ = start_;
- finish_ = start_;
- }
-
- void Merge(const Stats& other) {
- hist_.Merge(other.hist_);
- done_ += other.done_;
- gets_ += other.gets_;
- prefixes_ += other.prefixes_;
- writes_ += other.writes_;
- deletes_ += other.deletes_;
- iterator_size_sums_ += other.iterator_size_sums_;
- founds_ += other.founds_;
- iterations_ += other.iterations_;
- errors_ += other.errors_;
- bytes_ += other.bytes_;
- seconds_ += other.seconds_;
- if (other.start_ < start_) start_ = other.start_;
- if (other.finish_ > finish_) finish_ = other.finish_;
- }
-
- void Stop() {
- finish_ = FLAGS_env->NowMicros();
- seconds_ = (finish_ - start_) * 1e-6;
- }
-
- void FinishedSingleOp() {
- if (FLAGS_histogram) {
- double now = FLAGS_env->NowMicros();
- double micros = now - last_op_finish_;
- hist_.Add(micros);
- if (micros > 20000) {
- fprintf(stdout, "long op: %.1f micros%30s\r", micros, "");
- }
- last_op_finish_ = now;
- }
-
- done_++;
- if (done_ >= next_report_) {
- if (next_report_ < 1000) next_report_ += 100;
- else if (next_report_ < 5000) next_report_ += 500;
- else if (next_report_ < 10000) next_report_ += 1000;
- else if (next_report_ < 50000) next_report_ += 5000;
- else if (next_report_ < 100000) next_report_ += 10000;
- else if (next_report_ < 500000) next_report_ += 50000;
- else next_report_ += 100000;
- fprintf(stdout, "... finished %ld ops%30s\r", done_, "");
- }
- }
-
- void AddBytesForWrites(int nwrites, size_t nbytes) {
- writes_ += nwrites;
- bytes_ += nbytes;
- }
-
- void AddGets(int ngets, int nfounds) {
- founds_ += nfounds;
- gets_ += ngets;
- }
-
- void AddPrefixes(int nprefixes, int count) {
- prefixes_ += nprefixes;
- iterator_size_sums_ += count;
- }
-
- void AddIterations(int n) {
- iterations_ += n;
- }
-
- void AddDeletes(int n) {
- deletes_ += n;
- }
-
- void AddErrors(int n) {
- errors_ += n;
- }
-
- void Report(const char* name) {
- std::string extra;
- if (bytes_ < 1 || done_ < 1) {
- fprintf(stderr, "No writes or ops?\n");
- return;
- }
-
- double elapsed = (finish_ - start_) * 1e-6;
- double bytes_mb = bytes_ / 1048576.0;
- double rate = bytes_mb / elapsed;
- double throughput = (double)done_/elapsed;
-
- fprintf(stdout, "%-12s: ", name);
- fprintf(stdout, "%.3f micros/op %ld ops/sec\n",
- seconds_ * 1e6 / done_, (long)throughput);
- fprintf(stdout, "%-12s: Wrote %.2f MB (%.2f MB/sec) (%ld%% of %ld ops)\n",
- "", bytes_mb, rate, (100*writes_)/done_, done_);
- fprintf(stdout, "%-12s: Wrote %ld times\n", "", writes_);
- fprintf(stdout, "%-12s: Deleted %ld times\n", "", deletes_);
- fprintf(stdout, "%-12s: %ld read and %ld found the key\n", "",
- gets_, founds_);
- fprintf(stdout, "%-12s: Prefix scanned %ld times\n", "", prefixes_);
- fprintf(stdout, "%-12s: Iterator size sum is %ld\n", "",
- iterator_size_sums_);
- fprintf(stdout, "%-12s: Iterated %ld times\n", "", iterations_);
- fprintf(stdout, "%-12s: Got errors %ld times\n", "", errors_);
-
- if (FLAGS_histogram) {
- fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
- }
- fflush(stdout);
- }
-};
-
-// State shared by all concurrent executions of the same benchmark.
-class SharedState {
- public:
- static const uint32_t SENTINEL = 0xffffffff;
-
- explicit SharedState(StressTest* stress_test) :
- cv_(&mu_),
- seed_(FLAGS_seed),
- max_key_(FLAGS_max_key),
- log2_keys_per_lock_(FLAGS_log2_keys_per_lock),
- num_threads_(FLAGS_threads),
- num_initialized_(0),
- num_populated_(0),
- vote_reopen_(0),
- num_done_(0),
- start_(false),
- start_verify_(false),
- stress_test_(stress_test) {
- if (FLAGS_test_batches_snapshots) {
- key_locks_ = nullptr;
- values_ = nullptr;
- fprintf(stdout, "No lock creation because test_batches_snapshots set\n");
- return;
- }
- values_ = new uint32_t[max_key_];
- for (long i = 0; i < max_key_; i++) {
- values_[i] = SENTINEL;
- }
-
- long num_locks = (max_key_ >> log2_keys_per_lock_);
- if (max_key_ & ((1 << log2_keys_per_lock_) - 1)) {
- num_locks ++;
- }
- fprintf(stdout, "Creating %ld locks\n", num_locks);
- key_locks_ = new port::Mutex[num_locks];
- }
-
- ~SharedState() {
- delete[] values_;
- delete[] key_locks_;
- }
-
- port::Mutex* GetMutex() {
- return &mu_;
- }
-
- port::CondVar* GetCondVar() {
- return &cv_;
- }
-
- StressTest* GetStressTest() const {
- return stress_test_;
- }
-
- long GetMaxKey() const {
- return max_key_;
- }
-
- uint32_t GetNumThreads() const {
- return num_threads_;
- }
-
- void IncInitialized() {
- num_initialized_++;
- }
-
- void IncOperated() {
- num_populated_++;
- }
-
- void IncDone() {
- num_done_++;
- }
-
- void IncVotedReopen() {
- vote_reopen_ = (vote_reopen_ + 1) % num_threads_;
- }
-
- bool AllInitialized() const {
- return num_initialized_ >= num_threads_;
- }
-
- bool AllOperated() const {
- return num_populated_ >= num_threads_;
- }
-
- bool AllDone() const {
- return num_done_ >= num_threads_;
- }
-
- bool AllVotedReopen() {
- return (vote_reopen_ == 0);
- }
-
- void SetStart() {
- start_ = true;
- }
-
- void SetStartVerify() {
- start_verify_ = true;
- }
-
- bool Started() const {
- return start_;
- }
-
- bool VerifyStarted() const {
- return start_verify_;
- }
-
- port::Mutex* GetMutexForKey(long key) {
- return &key_locks_[key >> log2_keys_per_lock_];
- }
-
- void Put(long key, uint32_t value_base) {
- values_[key] = value_base;
- }
-
- uint32_t Get(long key) const {
- return values_[key];
- }
-
- void Delete(long key) const {
- values_[key] = SENTINEL;
- }
-
- uint32_t GetSeed() const {
- return seed_;
- }
-
- private:
- port::Mutex mu_;
- port::CondVar cv_;
- const uint32_t seed_;
- const long max_key_;
- const uint32_t log2_keys_per_lock_;
- const int num_threads_;
- long num_initialized_;
- long num_populated_;
- long vote_reopen_;
- long num_done_;
- bool start_;
- bool start_verify_;
- StressTest* stress_test_;
-
- uint32_t *values_;
- port::Mutex *key_locks_;
-
-};
-
-// Per-thread state for concurrent executions of the same benchmark.
-struct ThreadState {
- uint32_t tid; // 0..n-1
- Random rand; // Has different seeds for different threads
- SharedState* shared;
- Stats stats;
-
- ThreadState(uint32_t index, SharedState *shared)
- : tid(index),
- rand(1000 + index + shared->GetSeed()),
- shared(shared) {
- }
-};
-
-} // namespace
-
-class StressTest {
- public:
- StressTest()
- : cache_(NewLRUCache(FLAGS_cache_size)),
- compressed_cache_(FLAGS_compressed_cache_size >= 0 ?
- NewLRUCache(FLAGS_compressed_cache_size) :
- nullptr),
- filter_policy_(FLAGS_bloom_bits >= 0
- ? NewBloomFilterPolicy(FLAGS_bloom_bits)
- : nullptr),
- prefix_extractor_(NewFixedPrefixTransform(
- FLAGS_test_batches_snapshots ?
- sizeof(long) : sizeof(long)-1)),
- db_(nullptr),
- num_times_reopened_(0) {
- if (FLAGS_destroy_db_initially) {
- std::vector<std::string> files;
- FLAGS_env->GetChildren(FLAGS_db, &files);
- for (unsigned int i = 0; i < files.size(); i++) {
- if (Slice(files[i]).starts_with("heap-")) {
- FLAGS_env->DeleteFile(FLAGS_db + "/" + files[i]);
- }
- }
- DestroyDB(FLAGS_db, Options());
- }
- }
-
- ~StressTest() {
- delete db_;
- delete filter_policy_;
- delete prefix_extractor_;
- }
-
- void Run() {
- PrintEnv();
- Open();
- SharedState shared(this);
- uint32_t n = shared.GetNumThreads();
-
- std::vector<ThreadState*> threads(n);
- for (uint32_t i = 0; i < n; i++) {
- threads[i] = new ThreadState(i, &shared);
- FLAGS_env->StartThread(ThreadBody, threads[i]);
- }
- // Each thread goes through the following states:
- // initializing -> wait for others to init -> read/populate/depopulate
- // wait for others to operate -> verify -> done
-
- {
- MutexLock l(shared.GetMutex());
- while (!shared.AllInitialized()) {
- shared.GetCondVar()->Wait();
- }
-
- double now = FLAGS_env->NowMicros();
- fprintf(stdout, "%s Starting database operations\n",
- FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
-
- shared.SetStart();
- shared.GetCondVar()->SignalAll();
- while (!shared.AllOperated()) {
- shared.GetCondVar()->Wait();
- }
-
- now = FLAGS_env->NowMicros();
- if (FLAGS_test_batches_snapshots) {
- fprintf(stdout, "%s Limited verification already done during gets\n",
- FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
- } else {
- fprintf(stdout, "%s Starting verification\n",
- FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
- }
-
- shared.SetStartVerify();
- shared.GetCondVar()->SignalAll();
- while (!shared.AllDone()) {
- shared.GetCondVar()->Wait();
- }
- }
-
- for (unsigned int i = 1; i < n; i++) {
- threads[0]->stats.Merge(threads[i]->stats);
- }
- threads[0]->stats.Report("Stress Test");
-
- for (unsigned int i = 0; i < n; i++) {
- delete threads[i];
- threads[i] = nullptr;
- }
- double now = FLAGS_env->NowMicros();
- if (!FLAGS_test_batches_snapshots) {
- fprintf(stdout, "%s Verification successful\n",
- FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
- }
- PrintStatistics();
- }
-
- private:
-
- static void ThreadBody(void* v) {
- ThreadState* thread = reinterpret_cast<ThreadState*>(v);
- SharedState* shared = thread->shared;
-
- {
- MutexLock l(shared->GetMutex());
- shared->IncInitialized();
- if (shared->AllInitialized()) {
- shared->GetCondVar()->SignalAll();
- }
- while (!shared->Started()) {
- shared->GetCondVar()->Wait();
- }
- }
- thread->shared->GetStressTest()->OperateDb(thread);
-
- {
- MutexLock l(shared->GetMutex());
- shared->IncOperated();
- if (shared->AllOperated()) {
- shared->GetCondVar()->SignalAll();
- }
- while (!shared->VerifyStarted()) {
- shared->GetCondVar()->Wait();
- }
- }
-
- if (!FLAGS_test_batches_snapshots) {
- thread->shared->GetStressTest()->VerifyDb(thread);
- }
-
- {
- MutexLock l(shared->GetMutex());
- shared->IncDone();
- if (shared->AllDone()) {
- shared->GetCondVar()->SignalAll();
- }
- }
-
- }
-
- // Given a key K and value V, this puts ("0"+K, "0"+V), ("1"+K, "1"+V), ...
- // ("9"+K, "9"+V) in DB atomically i.e in a single batch.
- // Also refer MultiGet.
- Status MultiPut(ThreadState* thread,
- const WriteOptions& writeoptions,
- const Slice& key, const Slice& value, size_t sz) {
- std::string keys[10] = {"9", "8", "7", "6", "5",
- "4", "3", "2", "1", "0"};
- std::string values[10] = {"9", "8", "7", "6", "5",
- "4", "3", "2", "1", "0"};
- Slice value_slices[10];
- WriteBatch batch;
- Status s;
- for (int i = 0; i < 10; i++) {
- keys[i] += key.ToString();
- values[i] += value.ToString();
- value_slices[i] = values[i];
- if (FLAGS_use_merge) {
- batch.Merge(keys[i], value_slices[i]);
- } else {
- batch.Put(keys[i], value_slices[i]);
- }
- }
-
- s = db_->Write(writeoptions, &batch);
- if (!s.ok()) {
- fprintf(stderr, "multiput error: %s\n", s.ToString().c_str());
- thread->stats.AddErrors(1);
- } else {
- // we did 10 writes each of size sz + 1
- thread->stats.AddBytesForWrites(10, (sz + 1) * 10);
- }
-
- return s;
- }
-
- // Given a key K, this deletes ("0"+K), ("1"+K),... ("9"+K)
- // in DB atomically i.e in a single batch. Also refer MultiGet.
- Status MultiDelete(ThreadState* thread,
- const WriteOptions& writeoptions,
- const Slice& key) {
- std::string keys[10] = {"9", "7", "5", "3", "1",
- "8", "6", "4", "2", "0"};
-
- WriteBatch batch;
- Status s;
- for (int i = 0; i < 10; i++) {
- keys[i] += key.ToString();
- batch.Delete(keys[i]);
- }
-
- s = db_->Write(writeoptions, &batch);
- if (!s.ok()) {
- fprintf(stderr, "multidelete error: %s\n", s.ToString().c_str());
- thread->stats.AddErrors(1);
- } else {
- thread->stats.AddDeletes(10);
- }
-
- return s;
- }
-
- // Given a key K, this gets values for "0"+K, "1"+K,..."9"+K
- // in the same snapshot, and verifies that all the values are of the form
- // "0"+V, "1"+V,..."9"+V.
- // ASSUMES that MultiPut was used to put (K, V) into the DB.
- Status MultiGet(ThreadState* thread,
- const ReadOptions& readoptions,
- const Slice& key, std::string* value) {
- std::string keys[10] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
- Slice key_slices[10];
- std::string values[10];
- ReadOptions readoptionscopy = readoptions;
- readoptionscopy.snapshot = db_->GetSnapshot();
- Status s;
- for (int i = 0; i < 10; i++) {
- keys[i] += key.ToString();
- key_slices[i] = keys[i];
- s = db_->Get(readoptionscopy, key_slices[i], value);
- if (!s.ok() && !s.IsNotFound()) {
- fprintf(stderr, "get error: %s\n", s.ToString().c_str());
- values[i] = "";
- thread->stats.AddErrors(1);
- // we continue after error rather than exiting so that we can
- // find more errors if any
- } else if (s.IsNotFound()) {
- values[i] = "";
- thread->stats.AddGets(1, 0);
- } else {
- values[i] = *value;
-
- char expected_prefix = (keys[i])[0];
- char actual_prefix = (values[i])[0];
- if (actual_prefix != expected_prefix) {
- fprintf(stderr, "error expected prefix = %c actual = %c\n",
- expected_prefix, actual_prefix);
- }
- (values[i])[0] = ' '; // blank out the differing character
- thread->stats.AddGets(1, 1);
- }
- }
- db_->ReleaseSnapshot(readoptionscopy.snapshot);
-
- // Now that we retrieved all values, check that they all match
- for (int i = 1; i < 10; i++) {
- if (values[i] != values[0]) {
- fprintf(stderr, "error : inconsistent values for key %s: %s, %s\n",
- key.ToString().c_str(), values[0].c_str(),
- values[i].c_str());
- // we continue after error rather than exiting so that we can
- // find more errors if any
- }
- }
-
- return s;
- }
-
- // Given a prefix P, this does prefix scans for "0"+P, "1"+P,..."9"+P
- // in the same snapshot. Each of these 10 scans returns a series of
- // values; each series should be the same length, and it is verified
- // for each index i that all the i'th values are of the form "0"+V,
- // "1"+V,..."9"+V.
- // ASSUMES that MultiPut was used to put (K, V)
- Status MultiPrefixScan(ThreadState* thread,
- const ReadOptions& readoptions,
- const Slice& prefix) {
- std::string prefixes[10] = {"0", "1", "2", "3", "4",
- "5", "6", "7", "8", "9"};
- Slice prefix_slices[10];
- ReadOptions readoptionscopy[10];
- const Snapshot* snapshot = db_->GetSnapshot();
- Iterator* iters[10];
- Status s = Status::OK();
- for (int i = 0; i < 10; i++) {
- prefixes[i] += prefix.ToString();
- prefix_slices[i] = prefixes[i];
- readoptionscopy[i] = readoptions;
- readoptionscopy[i].prefix = &prefix_slices[i];
- readoptionscopy[i].snapshot = snapshot;
- iters[i] = db_->NewIterator(readoptionscopy[i]);
- iters[i]->SeekToFirst();
- }
-
- int count = 0;
- while (iters[0]->Valid()) {
- count++;
- std::string values[10];
- // get list of all values for this iteration
- for (int i = 0; i < 10; i++) {
- // no iterator should finish before the first one
- assert(iters[i]->Valid());
- values[i] = iters[i]->value().ToString();
-
- char expected_first = (prefixes[i])[0];
- char actual_first = (values[i])[0];
-
- if (actual_first != expected_first) {
- fprintf(stderr, "error expected first = %c actual = %c\n",
- expected_first, actual_first);
- }
- (values[i])[0] = ' '; // blank out the differing character
- }
- // make sure all values are equivalent
- for (int i = 0; i < 10; i++) {
- if (values[i] != values[0]) {
- fprintf(stderr, "error : inconsistent values for prefix %s: %s, %s\n",
- prefix.ToString().c_str(), values[0].c_str(),
- values[i].c_str());
- // we continue after error rather than exiting so that we can
- // find more errors if any
- }
- iters[i]->Next();
- }
- }
-
- // cleanup iterators and snapshot
- for (int i = 0; i < 10; i++) {
- // if the first iterator finished, they should have all finished
- assert(!iters[i]->Valid());
- assert(iters[i]->status().ok());
- delete iters[i];
- }
- db_->ReleaseSnapshot(snapshot);
-
- if (s.ok()) {
- thread->stats.AddPrefixes(1, count);
- } else {
- thread->stats.AddErrors(1);
- }
-
- return s;
- }
-
- // Given a key K, this creates an iterator which scans to K and then
- // does a random sequence of Next/Prev operations.
- Status MultiIterate(ThreadState* thread,
- const ReadOptions& readoptions,
- const Slice& key) {
- Status s;
- const Snapshot* snapshot = db_->GetSnapshot();
- ReadOptions readoptionscopy = readoptions;
- readoptionscopy.snapshot = snapshot;
- unique_ptr<Iterator> iter(db_->NewIterator(readoptionscopy));
-
- iter->Seek(key);
- for (uint64_t i = 0; i < FLAGS_num_iterations && iter->Valid(); i++) {
- if (thread->rand.OneIn(2)) {
- iter->Next();
- } else {
- iter->Prev();
- }
- }
-
- if (s.ok()) {
- thread->stats.AddIterations(1);
- } else {
- thread->stats.AddErrors(1);
- }
-
- db_->ReleaseSnapshot(snapshot);
-
- return s;
- }
-
- void OperateDb(ThreadState* thread) {
- ReadOptions read_opts(FLAGS_verify_checksum, true);
- WriteOptions write_opts;
- char value[100];
- long max_key = thread->shared->GetMaxKey();
- std::string from_db;
- if (FLAGS_sync) {
- write_opts.sync = true;
- }
- write_opts.disableWAL = FLAGS_disable_wal;
- const int prefixBound = (int)FLAGS_readpercent + (int)FLAGS_prefixpercent;
- const int writeBound = prefixBound + (int)FLAGS_writepercent;
- const int delBound = writeBound + (int)FLAGS_delpercent;
-
- thread->stats.Start();
- for (uint64_t i = 0; i < FLAGS_ops_per_thread; i++) {
- if(i != 0 && (i % (FLAGS_ops_per_thread / (FLAGS_reopen + 1))) == 0) {
- {
- thread->stats.FinishedSingleOp();
- MutexLock l(thread->shared->GetMutex());
- thread->shared->IncVotedReopen();
- if (thread->shared->AllVotedReopen()) {
- thread->shared->GetStressTest()->Reopen();
- thread->shared->GetCondVar()->SignalAll();
- }
- else {
- thread->shared->GetCondVar()->Wait();
- }
- // Commenting this out as we don't want to reset stats on each open.
- // thread->stats.Start();
- }
- }
-
- long rand_key = thread->rand.Next() % max_key;
- std::string keystr = Key(rand_key);
- Slice key = keystr;
- int prob_op = thread->rand.Uniform(100);
-
- if (prob_op >= 0 && prob_op < (int)FLAGS_readpercent) {
- // OPERATION read
- if (!FLAGS_test_batches_snapshots) {
- Status s = db_->Get(read_opts, key, &from_db);
- if (s.ok()) {
- // found case
- thread->stats.AddGets(1, 1);
- } else if (s.IsNotFound()) {
- // not found case
- thread->stats.AddGets(1, 0);
- } else {
- // errors case
- thread->stats.AddErrors(1);
- }
- } else {
- MultiGet(thread, read_opts, key, &from_db);
- }
- } else if ((int)FLAGS_readpercent <= prob_op && prob_op < prefixBound) {
- // OPERATION prefix scan
- // keys are longs (e.g., 8 bytes), so we let prefixes be
- // everything except the last byte. So there will be 2^8=256
- // keys per prefix.
- Slice prefix = Slice(key.data(), key.size() - 1);
- if (!FLAGS_test_batches_snapshots) {
- read_opts.prefix = &prefix;
- Iterator* iter = db_->NewIterator(read_opts);
- int count = 0;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- assert(iter->key().starts_with(prefix));
- count++;
- }
- assert(count <= 256);
- if (iter->status().ok()) {
- thread->stats.AddPrefixes(1, count);
- } else {
- thread->stats.AddErrors(1);
- }
- delete iter;
- } else {
- MultiPrefixScan(thread, read_opts, prefix);
- }
- } else if (prefixBound <= prob_op && prob_op < writeBound) {
- // OPERATION write
- uint32_t value_base = thread->rand.Next();
- size_t sz = GenerateValue(value_base, value, sizeof(value));
- Slice v(value, sz);
- if (!FLAGS_test_batches_snapshots) {
- MutexLock l(thread->shared->GetMutexForKey(rand_key));
- if (FLAGS_verify_before_write) {
- std::string keystr = Key(rand_key);
- Slice k = keystr;
- Status s = db_->Get(read_opts, k, &from_db);
- VerifyValue(rand_key,
- read_opts,
- *(thread->shared),
- from_db,
- s,
- true);
- }
- thread->shared->Put(rand_key, value_base);
- if (FLAGS_use_merge) {
- db_->Merge(write_opts, key, v);
- } else {
- db_->Put(write_opts, key, v);
- }
- thread->stats.AddBytesForWrites(1, sz);
- } else {
- MultiPut(thread, write_opts, key, v, sz);
- }
- PrintKeyValue(rand_key, value, sz);
- } else if (writeBound <= prob_op && prob_op < delBound) {
- // OPERATION delete
- if (!FLAGS_test_batches_snapshots) {
- MutexLock l(thread->shared->GetMutexForKey(rand_key));
- thread->shared->Delete(rand_key);
- db_->Delete(write_opts, key);
- thread->stats.AddDeletes(1);
- } else {
- MultiDelete(thread, write_opts, key);
- }
- } else {
- // OPERATION iterate
- MultiIterate(thread, read_opts, key);
- }
- thread->stats.FinishedSingleOp();
- }
-
- thread->stats.Stop();
- }
-
- void VerifyDb(ThreadState* thread) const {
- ReadOptions options(FLAGS_verify_checksum, true);
- const SharedState& shared = *(thread->shared);
- static const long max_key = shared.GetMaxKey();
- static const long keys_per_thread = max_key / shared.GetNumThreads();
- long start = keys_per_thread * thread->tid;
- long end = start + keys_per_thread;
- if (thread->tid == shared.GetNumThreads() - 1) {
- end = max_key;
- }
- if (!thread->rand.OneIn(2)) {
- // Use iterator to verify this range
- unique_ptr<Iterator> iter(db_->NewIterator(options));
- iter->Seek(Key(start));
- for (long i = start; i < end; i++) {
- std::string from_db;
- std::string keystr = Key(i);
- Slice k = keystr;
- Status s = iter->status();
- if (iter->Valid()) {
- if (iter->key().compare(k) > 0) {
- s = Status::NotFound(Slice());
- } else if (iter->key().compare(k) == 0) {
- from_db = iter->value().ToString();
- iter->Next();
- } else if (iter->key().compare(k) < 0) {
- VerificationAbort("An out of range key was found", i);
- }
- } else {
- // The iterator found no value for the key in question, so do not
- // move to the next item in the iterator
- s = Status::NotFound(Slice());
- }
- VerifyValue(i, options, shared, from_db, s, true);
- if (from_db.length()) {
- PrintKeyValue(i, from_db.data(), from_db.length());
- }
- }
- }
- else {
- // Use Get to verify this range
- for (long i = start; i < end; i++) {
- std::string from_db;
- std::string keystr = Key(i);
- Slice k = keystr;
- Status s = db_->Get(options, k, &from_db);
- VerifyValue(i, options, shared, from_db, s, true);
- if (from_db.length()) {
- PrintKeyValue(i, from_db.data(), from_db.length());
- }
- }
- }
- }
-
- void VerificationAbort(std::string msg, long key) const {
- fprintf(stderr, "Verification failed for key %ld: %s\n",
- key, msg.c_str());
- exit(1);
- }
-
- void VerifyValue(long key,
- const ReadOptions &opts,
- const SharedState &shared,
- const std::string &value_from_db,
- Status s,
- bool strict=false) const {
- // compare value_from_db with the value in the shared state
- char value[100];
- uint32_t value_base = shared.Get(key);
- if (value_base == SharedState::SENTINEL && !strict) {
- return;
- }
-
- if (s.ok()) {
- if (value_base == SharedState::SENTINEL) {
- VerificationAbort("Unexpected value found", key);
- }
- size_t sz = GenerateValue(value_base, value, sizeof(value));
- if (value_from_db.length() != sz) {
- VerificationAbort("Length of value read is not equal", key);
- }
- if (memcmp(value_from_db.data(), value, sz) != 0) {
- VerificationAbort("Contents of value read don't match", key);
- }
- } else {
- if (value_base != SharedState::SENTINEL) {
- VerificationAbort("Value not found", key);
- }
- }
- }
-
- static void PrintKeyValue(uint32_t key, const char *value, size_t sz) {
- if (!FLAGS_verbose) return;
- fprintf(stdout, "%u ==> (%u) ", key, (unsigned int)sz);
- for (size_t i=0; i<sz; i++) {
- fprintf(stdout, "%X", value[i]);
- }
- fprintf(stdout, "\n");
- }
-
- static size_t GenerateValue(uint32_t rand, char *v, size_t max_sz) {
- size_t value_sz = ((rand % 3) + 1) * FLAGS_value_size_mult;
- assert(value_sz <= max_sz && value_sz >= sizeof(uint32_t));
- *((uint32_t*)v) = rand;
- for (size_t i=sizeof(uint32_t); i < value_sz; i++) {
- v[i] = (char)(rand ^ i);
- }
- v[value_sz] = '\0';
- return value_sz; // the size of the value set.
- }
-
- void PrintEnv() const {
- fprintf(stdout, "LevelDB version : %d.%d\n",
- kMajorVersion, kMinorVersion);
- fprintf(stdout, "Number of threads : %d\n", FLAGS_threads);
- fprintf(stdout, "Ops per thread : %lu\n", FLAGS_ops_per_thread);
- std::string ttl_state("unused");
- if (FLAGS_ttl > 0) {
- ttl_state = NumberToString(FLAGS_ttl);
- }
- fprintf(stdout, "Time to live(sec) : %s\n", ttl_state.c_str());
- fprintf(stdout, "Read percentage : %d%%\n", FLAGS_readpercent);
- fprintf(stdout, "Prefix percentage : %d%%\n", FLAGS_prefixpercent);
- fprintf(stdout, "Write percentage : %d%%\n", FLAGS_writepercent);
- fprintf(stdout, "Delete percentage : %d%%\n", FLAGS_delpercent);
- fprintf(stdout, "Iterate percentage : %d%%\n", FLAGS_iterpercent);
- fprintf(stdout, "Write-buffer-size : %d\n", FLAGS_write_buffer_size);
- fprintf(stdout, "Iterations : %lu\n", FLAGS_num_iterations);
- fprintf(stdout, "Max key : %ld\n", FLAGS_max_key);
- fprintf(stdout, "Ratio #ops/#keys : %f\n",
- (1.0 * FLAGS_ops_per_thread * FLAGS_threads)/FLAGS_max_key);
- fprintf(stdout, "Num times DB reopens: %d\n", FLAGS_reopen);
- fprintf(stdout, "Batches/snapshots : %d\n",
- FLAGS_test_batches_snapshots);
- fprintf(stdout, "Purge redundant %% : %d\n",
- FLAGS_purge_redundant_percent);
- fprintf(stdout, "Deletes use filter : %d\n",
- FLAGS_filter_deletes);
- fprintf(stdout, "Num keys per lock : %d\n",
- 1 << FLAGS_log2_keys_per_lock);
-
- const char* compression = "";
- switch (FLAGS_compression_type_e) {
- case rocksdb::kNoCompression:
- compression = "none";
- break;
- case rocksdb::kSnappyCompression:
- compression = "snappy";
- break;
- case rocksdb::kZlibCompression:
- compression = "zlib";
- break;
- case rocksdb::kBZip2Compression:
- compression = "bzip2";
- break;
- }
-
- fprintf(stdout, "Compression : %s\n", compression);
-
- const char* memtablerep = "";
- switch (FLAGS_rep_factory) {
- case kSkipList:
- memtablerep = "skip_list";
- break;
- case kPrefixHash:
- memtablerep = "prefix_hash";
- break;
- case kUnsorted:
- memtablerep = "unsorted";
- break;
- case kVectorRep:
- memtablerep = "vector";
- break;
- }
-
- fprintf(stdout, "Memtablerep : %s\n", memtablerep);
-
- fprintf(stdout, "------------------------------------------------\n");
- }
-
- void Open() {
- assert(db_ == nullptr);
- Options options;
- options.block_cache = cache_;
- options.block_cache_compressed = compressed_cache_;
- options.write_buffer_size = FLAGS_write_buffer_size;
- options.max_write_buffer_number = FLAGS_max_write_buffer_number;
- options.min_write_buffer_number_to_merge =
- FLAGS_min_write_buffer_number_to_merge;
- options.max_background_compactions = FLAGS_max_background_compactions;
- options.compaction_style =
- static_cast<rocksdb::CompactionStyle>(FLAGS_compaction_style);
- options.block_size = FLAGS_block_size;
- options.filter_policy = filter_policy_;
- options.prefix_extractor = prefix_extractor_;
- options.max_open_files = FLAGS_open_files;
- options.statistics = dbstats;
- options.env = FLAGS_env;
- options.disableDataSync = FLAGS_disable_data_sync;
- options.use_fsync = FLAGS_use_fsync;
- options.allow_mmap_reads = FLAGS_mmap_read;
- rocksdb_kill_odds = FLAGS_kill_random_test;
- options.target_file_size_base = FLAGS_target_file_size_base;
- options.target_file_size_multiplier = FLAGS_target_file_size_multiplier;
- options.max_bytes_for_level_base = FLAGS_max_bytes_for_level_base;
- options.max_bytes_for_level_multiplier =
- FLAGS_max_bytes_for_level_multiplier;
- options.level0_stop_writes_trigger = FLAGS_level0_stop_writes_trigger;
- options.level0_slowdown_writes_trigger =
- FLAGS_level0_slowdown_writes_trigger;
- options.level0_file_num_compaction_trigger =
- FLAGS_level0_file_num_compaction_trigger;
- options.compression = FLAGS_compression_type_e;
- options.create_if_missing = true;
- options.disable_seek_compaction = FLAGS_disable_seek_compaction;
- options.delete_obsolete_files_period_micros =
- FLAGS_delete_obsolete_files_period_micros;
- options.max_manifest_file_size = 1024;
- options.filter_deletes = FLAGS_filter_deletes;
- if ((FLAGS_prefix_size == 0) == (FLAGS_rep_factory == kPrefixHash)) {
- fprintf(stderr,
- "prefix_size should be non-zero iff memtablerep == prefix_hash\n");
- exit(1);
- }
- switch (FLAGS_rep_factory) {
- case kPrefixHash:
- options.memtable_factory.reset(
- new PrefixHashRepFactory(NewFixedPrefixTransform(FLAGS_prefix_size))
- );
- break;
- case kUnsorted:
- options.memtable_factory.reset(
- new UnsortedRepFactory()
- );
- break;
- case kSkipList:
- // no need to do anything
- break;
- case kVectorRep:
- options.memtable_factory.reset(
- new VectorRepFactory()
- );
- break;
- }
- static Random purge_percent(1000); // no benefit from non-determinism here
- if (static_cast<int32_t>(purge_percent.Uniform(100)) <
- FLAGS_purge_redundant_percent - 1) {
- options.purge_redundant_kvs_while_flush = false;
- }
-
- if (FLAGS_use_merge) {
- options.merge_operator = MergeOperators::CreatePutOperator();
- }
-
- // set universal style compaction configurations, if applicable
- if (FLAGS_universal_size_ratio != 0) {
- options.compaction_options_universal.size_ratio =
- FLAGS_universal_size_ratio;
- }
- if (FLAGS_universal_min_merge_width != 0) {
- options.compaction_options_universal.min_merge_width =
- FLAGS_universal_min_merge_width;
- }
- if (FLAGS_universal_max_merge_width != 0) {
- options.compaction_options_universal.max_merge_width =
- FLAGS_universal_max_merge_width;
- }
- if (FLAGS_universal_max_size_amplification_percent != 0) {
- options.compaction_options_universal.max_size_amplification_percent =
- FLAGS_universal_max_size_amplification_percent;
- }
-
- fprintf(stdout, "DB path: [%s]\n", FLAGS_db.c_str());
-
- Status s;
- if (FLAGS_ttl == -1) {
- s = DB::Open(options, FLAGS_db, &db_);
- } else {
- s = UtilityDB::OpenTtlDB(options, FLAGS_db, &sdb_, FLAGS_ttl);
- db_ = sdb_;
- }
- if (!s.ok()) {
- fprintf(stderr, "open error: %s\n", s.ToString().c_str());
- exit(1);
- }
- }
-
- void Reopen() {
- // do not close the db. Just delete the lock file. This
- // simulates a crash-recovery kind of situation.
- if (FLAGS_ttl != -1) {
- ((DBWithTTL*) db_)->TEST_Destroy_DBWithTtl();
- } else {
- ((DBImpl*) db_)->TEST_Destroy_DBImpl();
- }
- db_ = nullptr;
-
- num_times_reopened_++;
- double now = FLAGS_env->NowMicros();
- fprintf(stdout, "%s Reopening database for the %dth time\n",
- FLAGS_env->TimeToString((uint64_t) now/1000000).c_str(),
- num_times_reopened_);
- Open();
- }
-
- void PrintStatistics() {
- if (dbstats) {
- fprintf(stdout, "STATISTICS:\n%s\n", dbstats->ToString().c_str());
- }
- }
-
- private:
- shared_ptr<Cache> cache_;
- shared_ptr<Cache> compressed_cache_;
- const FilterPolicy* filter_policy_;
- const SliceTransform* prefix_extractor_;
- DB* db_;
- StackableDB* sdb_;
- int num_times_reopened_;
-};
-
-} // namespace rocksdb
-
-
-
-int main(int argc, char** argv) {
- google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
- " [OPTIONS]...");
- google::ParseCommandLineFlags(&argc, &argv, true);
-
- if (FLAGS_statistics) {
- dbstats = rocksdb::CreateDBStatistics();
- }
- FLAGS_compression_type_e =
- StringToCompressionType(FLAGS_compression_type.c_str());
- if (!FLAGS_hdfs.empty()) {
- FLAGS_env = new rocksdb::HdfsEnv(FLAGS_hdfs);
- }
- FLAGS_rep_factory = StringToRepFactory(FLAGS_memtablerep.c_str());
-
- // The number of background threads should be at least as much the
- // max number of concurrent compactions.
- FLAGS_env->SetBackgroundThreads(FLAGS_max_background_compactions);
-
- if ((FLAGS_readpercent + FLAGS_prefixpercent +
- FLAGS_writepercent + FLAGS_delpercent + FLAGS_iterpercent) != 100) {
- fprintf(stderr,
- "Error: Read+Prefix+Write+Delete+Iterate percents != 100!\n");
- exit(1);
- }
- if (FLAGS_disable_wal == 1 && FLAGS_reopen > 0) {
- fprintf(stderr, "Error: Db cannot reopen safely with disable_wal set!\n");
- exit(1);
- }
- if ((unsigned)FLAGS_reopen >= FLAGS_ops_per_thread) {
- fprintf(stderr, "Error: #DB-reopens should be < ops_per_thread\n"
- "Provided reopens = %d and ops_per_thread = %lu\n", FLAGS_reopen,
- FLAGS_ops_per_thread);
- exit(1);
- }
-
- // Choose a location for the test database if none given with --db=<path>
- if (FLAGS_db.empty()) {
- std::string default_db_path;
- rocksdb::Env::Default()->GetTestDirectory(&default_db_path);
- default_db_path += "/dbstress";
- FLAGS_db = default_db_path;
- }
-
- rocksdb::StressTest stress;
- stress.Run();
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-
-#include "rocksdb/ldb_tool.h"
-
-int main(int argc, char** argv) {
- rocksdb::LDBTool tool;
- tool.Run(argc, argv);
- return 0;
-}
+++ /dev/null
-import os
-import os.path
-import shutil
-import subprocess
-import time
-import unittest
-import tempfile
-
-def my_check_output(*popenargs, **kwargs):
- """
- If we had python 2.7, we should simply use subprocess.check_output.
- This is a stop-gap solution for python 2.6
- """
- if 'stdout' in kwargs:
- raise ValueError('stdout argument not allowed, it will be overridden.')
- process = subprocess.Popen(stderr=subprocess.PIPE, stdout=subprocess.PIPE,
- *popenargs, **kwargs)
- output, unused_err = process.communicate()
- retcode = process.poll()
- if retcode:
- cmd = kwargs.get("args")
- if cmd is None:
- cmd = popenargs[0]
- raise Exception("Exit code is not 0. It is %d. Command: %s" %
- (retcode, cmd))
- return output
-
-def run_err_null(cmd):
- return os.system(cmd + " 2>/dev/null ")
-
-class LDBTestCase(unittest.TestCase):
- def setUp(self):
- self.TMP_DIR = tempfile.mkdtemp(prefix="ldb_test_")
- self.DB_NAME = "testdb"
-
- def tearDown(self):
- assert(self.TMP_DIR.strip() != "/"
- and self.TMP_DIR.strip() != "/tmp"
- and self.TMP_DIR.strip() != "/tmp/") #Just some paranoia
-
- shutil.rmtree(self.TMP_DIR)
-
- def dbParam(self, dbName):
- return "--db=%s" % os.path.join(self.TMP_DIR, dbName)
-
- def assertRunOKFull(self, params, expectedOutput, unexpected=False):
- """
- All command-line params must be specified.
- Allows full flexibility in testing; for example: missing db param.
-
- """
-
- output = my_check_output("./ldb %s |grep -v \"Created bg thread\"" %
- params, shell=True)
- if not unexpected:
- self.assertEqual(output.strip(), expectedOutput.strip())
- else:
- self.assertNotEqual(output.strip(), expectedOutput.strip())
-
- def assertRunFAILFull(self, params):
- """
- All command-line params must be specified.
- Allows full flexibility in testing; for example: missing db param.
-
- """
- try:
-
- my_check_output("./ldb %s >/dev/null 2>&1 |grep -v \"Created bg \
- thread\"" % params, shell=True)
- except Exception, e:
- return
- self.fail(
- "Exception should have been raised for command with params: %s" %
- params)
-
- def assertRunOK(self, params, expectedOutput, unexpected=False):
- """
- Uses the default test db.
-
- """
- self.assertRunOKFull("%s %s" % (self.dbParam(self.DB_NAME), params),
- expectedOutput, unexpected)
-
- def assertRunFAIL(self, params):
- """
- Uses the default test db.
- """
- self.assertRunFAILFull("%s %s" % (self.dbParam(self.DB_NAME), params))
-
- def testSimpleStringPutGet(self):
- print "Running testSimpleStringPutGet..."
- self.assertRunFAIL("put x1 y1")
- self.assertRunOK("put --create_if_missing x1 y1", "OK")
- self.assertRunOK("get x1", "y1")
- self.assertRunFAIL("get x2")
-
- self.assertRunOK("put x2 y2", "OK")
- self.assertRunOK("get x1", "y1")
- self.assertRunOK("get x2", "y2")
- self.assertRunFAIL("get x3")
-
- self.assertRunOK("scan --from=x1 --to=z", "x1 : y1\nx2 : y2")
- self.assertRunOK("put x3 y3", "OK")
-
- self.assertRunOK("scan --from=x1 --to=z", "x1 : y1\nx2 : y2\nx3 : y3")
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3")
- self.assertRunOK("scan --from=x", "x1 : y1\nx2 : y2\nx3 : y3")
-
- self.assertRunOK("scan --to=x2", "x1 : y1")
- self.assertRunOK("scan --from=x1 --to=z --max_keys=1", "x1 : y1")
- self.assertRunOK("scan --from=x1 --to=z --max_keys=2",
- "x1 : y1\nx2 : y2")
-
- self.assertRunOK("scan --from=x1 --to=z --max_keys=3",
- "x1 : y1\nx2 : y2\nx3 : y3")
- self.assertRunOK("scan --from=x1 --to=z --max_keys=4",
- "x1 : y1\nx2 : y2\nx3 : y3")
- self.assertRunOK("scan --from=x1 --to=x2", "x1 : y1")
- self.assertRunOK("scan --from=x2 --to=x4", "x2 : y2\nx3 : y3")
- self.assertRunFAIL("scan --from=x4 --to=z") # No results => FAIL
- self.assertRunFAIL("scan --from=x1 --to=z --max_keys=foo")
-
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3")
-
- self.assertRunOK("delete x1", "OK")
- self.assertRunOK("scan", "x2 : y2\nx3 : y3")
-
- self.assertRunOK("delete NonExistentKey", "OK")
- # It is weird that GET and SCAN raise exception for
- # non-existent key, while delete does not
-
- def dumpDb(self, params, dumpFile):
- return 0 == run_err_null("./ldb dump %s > %s" % (params, dumpFile))
-
- def loadDb(self, params, dumpFile):
- return 0 == run_err_null("cat %s | ./ldb load %s" % (dumpFile, params))
-
- def testStringBatchPut(self):
- print "Running testStringBatchPut..."
- self.assertRunOK("batchput x1 y1 --create_if_missing", "OK")
- self.assertRunOK("scan", "x1 : y1")
- self.assertRunOK("batchput x2 y2 x3 y3 \"x4 abc\" \"y4 xyz\"", "OK")
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 abc : y4 xyz")
- self.assertRunFAIL("batchput")
- self.assertRunFAIL("batchput k1")
- self.assertRunFAIL("batchput k1 v1 k2")
-
- def testCountDelimDump(self):
- print "Running testCountDelimDump..."
- self.assertRunOK("batchput x.1 x1 --create_if_missing", "OK")
- self.assertRunOK("batchput y.abc abc y.2 2 z.13c pqr", "OK")
- self.assertRunOK("dump --count_delim", "x => count:1\tsize:5\ny => count:2\tsize:12\nz => count:1\tsize:8")
- self.assertRunOK("dump --count_delim=\".\"", "x => count:1\tsize:5\ny => count:2\tsize:12\nz => count:1\tsize:8")
- self.assertRunOK("batchput x,2 x2 x,abc xabc", "OK")
- self.assertRunOK("dump --count_delim=\",\"", "x => count:2\tsize:14\nx.1 => count:1\tsize:5\ny.2 => count:1\tsize:4\ny.abc => count:1\tsize:8\nz.13c => count:1\tsize:8")
-
- def testCountDelimIDump(self):
- print "Running testCountDelimIDump..."
- self.assertRunOK("batchput x.1 x1 --create_if_missing", "OK")
- self.assertRunOK("batchput y.abc abc y.2 2 z.13c pqr", "OK")
- self.assertRunOK("dump --count_delim", "x => count:1\tsize:5\ny => count:2\tsize:12\nz => count:1\tsize:8")
- self.assertRunOK("dump --count_delim=\".\"", "x => count:1\tsize:5\ny => count:2\tsize:12\nz => count:1\tsize:8")
- self.assertRunOK("batchput x,2 x2 x,abc xabc", "OK")
- self.assertRunOK("dump --count_delim=\",\"", "x => count:2\tsize:14\nx.1 => count:1\tsize:5\ny.2 => count:1\tsize:4\ny.abc => count:1\tsize:8\nz.13c => count:1\tsize:8")
-
- def testInvalidCmdLines(self):
- print "Running testInvalidCmdLines..."
- # db not specified
- self.assertRunFAILFull("put 0x6133 0x6233 --hex --create_if_missing")
- # No param called he
- self.assertRunFAIL("put 0x6133 0x6233 --he --create_if_missing")
- # max_keys is not applicable for put
- self.assertRunFAIL("put 0x6133 0x6233 --max_keys=1 --create_if_missing")
- # hex has invalid boolean value
-
- def testHexPutGet(self):
- print "Running testHexPutGet..."
- self.assertRunOK("put a1 b1 --create_if_missing", "OK")
- self.assertRunOK("scan", "a1 : b1")
- self.assertRunOK("scan --hex", "0x6131 : 0x6231")
- self.assertRunFAIL("put --hex 6132 6232")
- self.assertRunOK("put --hex 0x6132 0x6232", "OK")
- self.assertRunOK("scan --hex", "0x6131 : 0x6231\n0x6132 : 0x6232")
- self.assertRunOK("scan", "a1 : b1\na2 : b2")
- self.assertRunOK("get a1", "b1")
- self.assertRunOK("get --hex 0x6131", "0x6231")
- self.assertRunOK("get a2", "b2")
- self.assertRunOK("get --hex 0x6132", "0x6232")
- self.assertRunOK("get --key_hex 0x6132", "b2")
- self.assertRunOK("get --key_hex --value_hex 0x6132", "0x6232")
- self.assertRunOK("get --value_hex a2", "0x6232")
- self.assertRunOK("scan --key_hex --value_hex",
- "0x6131 : 0x6231\n0x6132 : 0x6232")
- self.assertRunOK("scan --hex --from=0x6131 --to=0x6133",
- "0x6131 : 0x6231\n0x6132 : 0x6232")
- self.assertRunOK("scan --hex --from=0x6131 --to=0x6132",
- "0x6131 : 0x6231")
- self.assertRunOK("scan --key_hex", "0x6131 : b1\n0x6132 : b2")
- self.assertRunOK("scan --value_hex", "a1 : 0x6231\na2 : 0x6232")
- self.assertRunOK("batchput --hex 0x6133 0x6233 0x6134 0x6234", "OK")
- self.assertRunOK("scan", "a1 : b1\na2 : b2\na3 : b3\na4 : b4")
- self.assertRunOK("delete --hex 0x6133", "OK")
- self.assertRunOK("scan", "a1 : b1\na2 : b2\na4 : b4")
-
- def testTtlPutGet(self):
- print "Running testTtlPutGet..."
- self.assertRunOK("put a1 b1 --ttl --create_if_missing", "OK")
- self.assertRunOK("scan ", "a1 : b1", True)
- self.assertRunOK("dump --ttl ", "a1 ==> b1", True)
- self.assertRunOK("scan --hex --ttl", "0x6131 : 0x6231")
- self.assertRunOK("get a1", "b1", True)
- self.assertRunOK("get --ttl a1", "b1")
- self.assertRunOK("put a3 b3 --create_if_missing", "OK")
- # fails because timstamp's length is greater than value's
- self.assertRunFAIL("get --ttl a3")
-
- def testInvalidCmdLines(self):
- print "Running testInvalidCmdLines..."
- # db not specified
- self.assertRunFAILFull("put 0x6133 0x6233 --hex --create_if_missing")
- # No param called he
- self.assertRunFAIL("put 0x6133 0x6233 --he --create_if_missing")
- # max_keys is not applicable for put
- self.assertRunFAIL("put 0x6133 0x6233 --max_keys=1 --create_if_missing")
- # hex has invalid boolean value
- self.assertRunFAIL("put 0x6133 0x6233 --hex=Boo --create_if_missing")
-
- def testDumpLoad(self):
- print "Running testDumpLoad..."
- self.assertRunOK("batchput --create_if_missing x1 y1 x2 y2 x3 y3 x4 y4",
- "OK")
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
- origDbPath = os.path.join(self.TMP_DIR, self.DB_NAME)
-
- # Dump and load without any additional params specified
- dumpFilePath = os.path.join(self.TMP_DIR, "dump1")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump1")
- self.assertTrue(self.dumpDb("--db=%s" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath,
- "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- # Dump and load in hex
- dumpFilePath = os.path.join(self.TMP_DIR, "dump2")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump2")
- self.assertTrue(self.dumpDb("--db=%s --hex" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s --hex --create_if_missing" % loadedDbPath, dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath,
- "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- # Dump only a portion of the key range
- dumpFilePath = os.path.join(self.TMP_DIR, "dump3")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump3")
- self.assertTrue(self.dumpDb(
- "--db=%s --from=x1 --to=x3" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath, "x1 : y1\nx2 : y2")
-
- # Dump upto max_keys rows
- dumpFilePath = os.path.join(self.TMP_DIR, "dump4")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump4")
- self.assertTrue(self.dumpDb(
- "--db=%s --max_keys=3" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath,
- "x1 : y1\nx2 : y2\nx3 : y3")
-
- # Load into an existing db, create_if_missing is not specified
- self.assertTrue(self.dumpDb("--db=%s" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb("--db=%s" % loadedDbPath, dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath,
- "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- # Dump and load with WAL disabled
- dumpFilePath = os.path.join(self.TMP_DIR, "dump5")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump5")
- self.assertTrue(self.dumpDb("--db=%s" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s --disable_wal --create_if_missing" % loadedDbPath,
- dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath,
- "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- # Dump and load with lots of extra params specified
- extraParams = " ".join(["--bloom_bits=14", "--compression_type=bzip2",
- "--block_size=1024", "--auto_compaction=true",
- "--write_buffer_size=4194304",
- "--file_size=2097152"])
- dumpFilePath = os.path.join(self.TMP_DIR, "dump6")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump6")
- self.assertTrue(self.dumpDb(
- "--db=%s %s" % (origDbPath, extraParams), dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s %s --create_if_missing" % (loadedDbPath, extraParams),
- dumpFilePath))
- self.assertRunOKFull("scan --db=%s" % loadedDbPath,
- "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- # Dump with count_only
- dumpFilePath = os.path.join(self.TMP_DIR, "dump7")
- loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump7")
- self.assertTrue(self.dumpDb(
- "--db=%s --count_only" % origDbPath, dumpFilePath))
- self.assertTrue(self.loadDb(
- "--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
- # DB should have atleast one value for scan to work
- self.assertRunOKFull("put --db=%s k1 v1" % loadedDbPath, "OK")
- self.assertRunOKFull("scan --db=%s" % loadedDbPath, "k1 : v1")
-
- # Dump command fails because of typo in params
- dumpFilePath = os.path.join(self.TMP_DIR, "dump8")
- self.assertFalse(self.dumpDb(
- "--db=%s --create_if_missin" % origDbPath, dumpFilePath))
-
- def testMiscAdminTask(self):
- print "Running testMiscAdminTask..."
- # These tests need to be improved; for example with asserts about
- # whether compaction or level reduction actually took place.
- self.assertRunOK("batchput --create_if_missing x1 y1 x2 y2 x3 y3 x4 y4",
- "OK")
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
- origDbPath = os.path.join(self.TMP_DIR, self.DB_NAME)
-
- self.assertTrue(0 == run_err_null(
- "./ldb compact --db=%s" % origDbPath))
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- self.assertTrue(0 == run_err_null(
- "./ldb reduce_levels --db=%s --new_levels=2" % origDbPath))
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- self.assertTrue(0 == run_err_null(
- "./ldb reduce_levels --db=%s --new_levels=3" % origDbPath))
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- self.assertTrue(0 == run_err_null(
- "./ldb compact --db=%s --from=x1 --to=x3" % origDbPath))
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- self.assertTrue(0 == run_err_null(
- "./ldb compact --db=%s --hex --from=0x6131 --to=0x6134"
- % origDbPath))
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
- #TODO(dilip): Not sure what should be passed to WAL.Currently corrupted.
- self.assertTrue(0 == run_err_null(
- "./ldb dump_wal --db=%s --walfile=%s --header" % (
- origDbPath, os.path.join(origDbPath, "LOG"))))
- self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
-
-if __name__ == "__main__":
- unittest.main()
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "rocksdb/db.h"
-#include "db/db_impl.h"
-#include "db/version_set.h"
-#include "util/logging.h"
-#include "util/testutil.h"
-#include "util/testharness.h"
-#include "util/ldb_cmd.h"
-
-namespace rocksdb {
-
-class ReduceLevelTest {
-public:
- ReduceLevelTest() {
- dbname_ = test::TmpDir() + "/db_reduce_levels_test";
- DestroyDB(dbname_, Options());
- db_ = nullptr;
- }
-
- Status OpenDB(bool create_if_missing, int levels,
- int mem_table_compact_level);
-
- Status Put(const std::string& k, const std::string& v) {
- return db_->Put(WriteOptions(), k, v);
- }
-
- std::string Get(const std::string& k) {
- ReadOptions options;
- std::string result;
- Status s = db_->Get(options, k, &result);
- if (s.IsNotFound()) {
- result = "NOT_FOUND";
- } else if (!s.ok()) {
- result = s.ToString();
- }
- return result;
- }
-
- Status CompactMemTable() {
- if (db_ == nullptr) {
- return Status::InvalidArgument("DB not opened.");
- }
- DBImpl* db_impl = reinterpret_cast<DBImpl*>(db_);
- return db_impl->TEST_FlushMemTable();
- }
-
- void CloseDB() {
- if (db_ != nullptr) {
- delete db_;
- db_ = nullptr;
- }
- }
-
- bool ReduceLevels(int target_level);
-
- int FilesOnLevel(int level) {
- std::string property;
- ASSERT_TRUE(
- db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
- &property));
- return atoi(property.c_str());
- }
-
-private:
- std::string dbname_;
- DB* db_;
-};
-
-Status ReduceLevelTest::OpenDB(bool create_if_missing, int num_levels,
- int mem_table_compact_level) {
- rocksdb::Options opt;
- opt.num_levels = num_levels;
- opt.create_if_missing = create_if_missing;
- opt.max_mem_compaction_level = mem_table_compact_level;
- rocksdb::Status st = rocksdb::DB::Open(opt, dbname_, &db_);
- if (!st.ok()) {
- fprintf(stderr, "Can't open the db:%s\n", st.ToString().c_str());
- }
- return st;
-}
-
-bool ReduceLevelTest::ReduceLevels(int target_level) {
- std::vector<std::string> args = rocksdb::ReduceDBLevelsCommand::PrepareArgs(
- dbname_, target_level, false);
- LDBCommand* level_reducer = LDBCommand::InitFromCmdLineArgs(args);
- level_reducer->Run();
- bool is_succeed = level_reducer->GetExecuteState().IsSucceed();
- delete level_reducer;
- return is_succeed;
-}
-
-TEST(ReduceLevelTest, Last_Level) {
- // create files on all levels;
- ASSERT_OK(OpenDB(true, 4, 3));
- ASSERT_OK(Put("aaaa", "11111"));
- ASSERT_OK(CompactMemTable());
- ASSERT_EQ(FilesOnLevel(3), 1);
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(3));
- ASSERT_OK(OpenDB(true, 3, 1));
- ASSERT_EQ(FilesOnLevel(2), 1);
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(2));
- ASSERT_OK(OpenDB(true, 2, 1));
- ASSERT_EQ(FilesOnLevel(1), 1);
- CloseDB();
-}
-
-TEST(ReduceLevelTest, Top_Level) {
- // create files on all levels;
- ASSERT_OK(OpenDB(true, 5, 0));
- ASSERT_OK(Put("aaaa", "11111"));
- ASSERT_OK(CompactMemTable());
- ASSERT_EQ(FilesOnLevel(0), 1);
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(4));
- ASSERT_OK(OpenDB(true, 4, 0));
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(3));
- ASSERT_OK(OpenDB(true, 3, 0));
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(2));
- ASSERT_OK(OpenDB(true, 2, 0));
- CloseDB();
-}
-
-TEST(ReduceLevelTest, All_Levels) {
- // create files on all levels;
- ASSERT_OK(OpenDB(true, 5, 1));
- ASSERT_OK(Put("a", "a11111"));
- ASSERT_OK(CompactMemTable());
- ASSERT_EQ(FilesOnLevel(1), 1);
- CloseDB();
-
- ASSERT_OK(OpenDB(true, 5, 2));
- ASSERT_OK(Put("b", "b11111"));
- ASSERT_OK(CompactMemTable());
- ASSERT_EQ(FilesOnLevel(1), 1);
- ASSERT_EQ(FilesOnLevel(2), 1);
- CloseDB();
-
- ASSERT_OK(OpenDB(true, 5, 3));
- ASSERT_OK(Put("c", "c11111"));
- ASSERT_OK(CompactMemTable());
- ASSERT_EQ(FilesOnLevel(1), 1);
- ASSERT_EQ(FilesOnLevel(2), 1);
- ASSERT_EQ(FilesOnLevel(3), 1);
- CloseDB();
-
- ASSERT_OK(OpenDB(true, 5, 4));
- ASSERT_OK(Put("d", "d11111"));
- ASSERT_OK(CompactMemTable());
- ASSERT_EQ(FilesOnLevel(1), 1);
- ASSERT_EQ(FilesOnLevel(2), 1);
- ASSERT_EQ(FilesOnLevel(3), 1);
- ASSERT_EQ(FilesOnLevel(4), 1);
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(4));
- ASSERT_OK(OpenDB(true, 4, 0));
- ASSERT_EQ("a11111", Get("a"));
- ASSERT_EQ("b11111", Get("b"));
- ASSERT_EQ("c11111", Get("c"));
- ASSERT_EQ("d11111", Get("d"));
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(3));
- ASSERT_OK(OpenDB(true, 3, 0));
- ASSERT_EQ("a11111", Get("a"));
- ASSERT_EQ("b11111", Get("b"));
- ASSERT_EQ("c11111", Get("c"));
- ASSERT_EQ("d11111", Get("d"));
- CloseDB();
-
- ASSERT_TRUE(ReduceLevels(2));
- ASSERT_OK(OpenDB(true, 2, 0));
- ASSERT_EQ("a11111", Get("a"));
- ASSERT_EQ("b11111", Get("b"));
- ASSERT_EQ("c11111", Get("c"));
- ASSERT_EQ("d11111", Get("d"));
- CloseDB();
-}
-
-}
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-
-#include <boost/shared_ptr.hpp>
-
-#include "DBClientProxy.h"
-
-
-#include "thrift/lib/cpp/protocol/TBinaryProtocol.h"
-#include "thrift/lib/cpp/transport/TSocket.h"
-#include "thrift/lib/cpp/transport/TTransportUtils.h"
-
-
-
-using namespace std;
-using namespace boost;
-using namespace Tleveldb;
-using namespace apache::thrift::protocol;
-using namespace apache::thrift::transport;
-
-namespace rocksdb {
-
-DBClientProxy::DBClientProxy(const string & host, int port) :
- host_(host),
- port_(port),
- dbToHandle_(),
- dbClient_() {
-}
-
-DBClientProxy::~DBClientProxy() {
- cleanUp();
-}
-
-
-void DBClientProxy::connect(void) {
- cleanUp();
- printf("Connecting to %s:%d\n", host_.c_str(), port_);
- try {
- boost::shared_ptr<TSocket> socket(new TSocket(host_, port_));
- boost::shared_ptr<TTransport> transport(new TBufferedTransport(socket));
- boost::shared_ptr<TBinaryProtocol> protocol(new TBinaryProtocol(transport));
- dbClient_.reset(new DBClient(protocol));
-
- transport->open();
- } catch (const std::exception & e) {
- dbClient_.reset();
- throw;
- }
-}
-
-void DBClientProxy::cleanUp(void) {
- if(dbClient_.get()) {
- for(map<string, DBHandle>::iterator itor = dbToHandle_.begin();
- itor != dbToHandle_.end();
- ++itor) {
- dbClient_->Close(itor->second, itor->first);
- }
- dbClient_.reset();
- }
- dbToHandle_.clear();
-}
-
-void DBClientProxy::open(const string & db) {
- if(!dbClient_.get()) {
- printf("please connect() first\n");
- return;
- }
-
- // printf("opening database : %s\n", db.c_str());
- // we use default DBOptions here
- DBOptions opt;
- DBHandle handle;
- try {
- dbClient_->Open(handle, db, opt);
- } catch (const LeveldbException & e) {
- printf("%s\n", e.message.c_str());
- if(kIOError == e.errorCode) {
- printf("no such database : %s\n", db.c_str());
- return;
- }else {
- printf("Unknown error : %d\n", e.errorCode);
- return;
- }
- }
-
- dbToHandle_[db] = handle;
-}
-
-
-bool DBClientProxy::create(const string & db) {
- if(!dbClient_.get()) {
- printf("please connect() first\n");
- return false;
- }
-
- printf("creating database : %s\n", db.c_str());
- DBOptions opt;
- opt.create_if_missing = true;
- opt.error_if_exists = true;
- DBHandle handle;
- try {
- dbClient_->Open(handle, db, opt);
- }catch (const LeveldbException & e) {
- printf("%s\n", e.message.c_str());
- printf("error code : %d\n", e.errorCode);
- if(kNotFound == e.errorCode) {
- printf("no such database : %s\n", db.c_str());
- return false;;
- } else {
- printf("Unknown error : %d\n", e.errorCode);
- return false;
- }
- }
-
- dbToHandle_[db] = handle;
- return true;
-}
-
-
-map<string, DBHandle>::iterator
-DBClientProxy::getHandle(const string & db) {
- map<string, DBHandle>::iterator itor = dbToHandle_.find(db);
- if(dbToHandle_.end() == itor) {
- open(db);
- itor = dbToHandle_.find(db);
- }
-
- return itor;
-}
-
-
-bool DBClientProxy::get(const string & db,
- const string & key,
- string & value) {
- if(!dbClient_.get()) {
- printf("please connect() first\n");
- return false;
- }
-
- map<string, DBHandle>::iterator itor = getHandle(db);
- if(dbToHandle_.end() == itor) {
- return false;
- }
-
- ResultItem ret;
- Slice k;
- k.data = key;
- k.size = key.size();
- // we use default values of options here
- ReadOptions opt;
- dbClient_->Get(ret,
- itor->second,
- k,
- opt);
- if(kOk == ret.status) {
- value = ret.value.data;
- return true;
- } else if(kNotFound == ret.status) {
- printf("no such key : %s\n", key.c_str());
- return false;
- } else {
- printf("get data error : %d\n", ret.status);
- return false;
- }
-}
-
-
-
-bool DBClientProxy::put(const string & db,
- const string & key,
- const string & value) {
- if(!dbClient_.get()) {
- printf("please connect() first\n");
- return false;
- }
-
- map<string, DBHandle>::iterator itor = getHandle(db);
- if(dbToHandle_.end() == itor) {
- return false;
- }
-
- kv temp;
- temp.key.data = key;
- temp.key.size = key.size();
- temp.value.data = value;
- temp.value.size = value.size();
- WriteOptions opt;
- opt.sync = true;
- Code code;
- code = dbClient_->Put(itor->second,
- temp,
- opt);
-
-
- if(kOk == code) {
- // printf("set value finished\n");
- return true;
- } else {
- printf("put data error : %d\n", code);
- return false;
- }
-}
-
-bool DBClientProxy::scan(const string & db,
- const string & start_key,
- const string & end_key,
- const string & limit,
- vector<pair<string, string> > & kvs) {
- if(!dbClient_.get()) {
- printf("please connect() first\n");
- return false;
- }
-
- int limitInt = -1;
- limitInt = atoi(limit.c_str());
- if(limitInt <= 0) {
- printf("Error while parse limit : %s\n", limit.c_str());
- return false;
- }
-
- if(start_key > end_key) {
- printf("empty range.\n");
- return false;
- }
-
- map<string, DBHandle>::iterator itor = getHandle(db);
- if(dbToHandle_.end() == itor) {
- return false;
- }
-
- ResultIterator ret;
- // we use the default values of options here
- ReadOptions opt;
- Slice k;
- k.data = start_key;
- k.size = start_key.size();
- dbClient_->NewIterator(ret,
- itor->second,
- opt,
- seekToKey,
- k);
- Iterator it;
- if(kOk == ret.status) {
- it = ret.iterator;
- } else {
- printf("get iterator error : %d\n", ret.status);
- return false;
- }
-
- int idx = 0;
- string ck = start_key;
- while(idx < limitInt && ck < end_key) {
- ResultPair retPair;
- dbClient_->GetNext(retPair, itor->second, it);
- if(kOk == retPair.status) {
- ++idx;
- ck = retPair.keyvalue.key.data;
- if (ck < end_key) {
- kvs.push_back(make_pair(retPair.keyvalue.key.data,
- retPair.keyvalue.value.data));
- }
- } else if(kEnd == retPair.status) {
- printf("not enough values\n");
- return true;
- } else {
- printf("GetNext() error : %d\n", retPair.status);
- return false;
- }
- }
- return true;
-}
-
-} // namespace
+++ /dev/null
-
-#ifndef TOOLS_SHELL_DBCLIENTPROXY
-#define TOOLS_SHELL_DBCLIENTPROXY
-
-#include <vector>
-#include <map>
-#include <string>
-#include <boost/utility.hpp>
-#include <boost/shared_ptr.hpp>
-
-#include "DB.h"
-
-/*
- * class DBClientProxy maintains:
- * 1. a connection to rocksdb service
- * 2. a map from db names to opened db handles
- *
- * it's client codes' responsibility to catch all possible exceptions.
- */
-
-namespace rocksdb {
-
-class DBClientProxy : private boost::noncopyable {
- public:
- // connect to host_:port_
- void connect(void);
-
- // return true on success, false otherwise
- bool get(const std::string & db,
- const std::string & key,
- std::string & value);
-
- // return true on success, false otherwise
- bool put(const std::string & db,
- const std::string & key,
- const std::string & value);
-
- // return true on success, false otherwise
- bool scan(const std::string & db,
- const std::string & start_key,
- const std::string & end_key,
- const std::string & limit,
- std::vector<std::pair<std::string, std::string> > & kvs);
-
- // return true on success, false otherwise
- bool create(const std::string & db);
-
- DBClientProxy(const std::string & host, int port);
- ~DBClientProxy();
-
- private:
- // some internal help functions
- void cleanUp(void);
- void open(const std::string & db);
- std::map<std::string, Trocksdb::DBHandle>::iterator getHandle(const std::string & db);
-
- const std::string host_;
- const int port_;
- std::map<std::string, Trocksdb::DBHandle> dbToHandle_;
- boost::shared_ptr<Trocksdb::DBClient> dbClient_;
-};
-
-} // namespace
-#endif
+++ /dev/null
-
-
-#include "ShellContext.h"
-
-int main(int argc, char ** argv) {
- ShellContext c(argc, argv);
- c.run();
-}
+++ /dev/null
-
-#include <iostream>
-#include <boost/shared_ptr.hpp>
-
-#include "ShellContext.h"
-#include "ShellState.h"
-
-
-
-#include "thrift/lib/cpp/protocol/TBinaryProtocol.h"
-#include "thrift/lib/cpp/transport/TSocket.h"
-#include "thrift/lib/cpp/transport/TTransportUtils.h"
-
-
-
-using namespace std;
-using namespace boost;
-using namespace Tleveldb;
-using namespace rocksdb;
-using namespace apache::thrift::protocol;
-using namespace apache::thrift::transport;
-
-void ShellContext::changeState(ShellState * pState) {
- pShellState_ = pState;
-}
-
-void ShellContext::stop(void) {
- exit_ = true;
-}
-
-bool ShellContext::ParseInput(void) {
- if(argc_ != 3) {
- printf("leveldb_shell host port\n");
- return false;
- }
-
- port_ = atoi(argv_[2]);
- if(port_ <= 0) {
- printf("Error while parse port : %s\n", argv_[2]);
- return false;
- }
-
- clientProxy_.reset(new DBClientProxy(argv_[1], port_));
- if(!clientProxy_.get()) {
- return false;
- } else {
- return true;
- }
-}
-
-void ShellContext::connect(void) {
- clientProxy_->connect();
-}
-
-void ShellContext::create(const string & db) {
- if (clientProxy_->create(db)) {
- printf("%s created\n", db.c_str());
- }
-}
-
-void ShellContext::get(const string & db,
- const string & key) {
- string v;
- if (clientProxy_->get(db, key, v)) {
- printf("%s\n", v.c_str());
- }
-}
-
-void ShellContext::put(const string & db,
- const string & key,
- const string & value) {
- if (clientProxy_->put(db, key, value)) {
- printf("(%s, %s) has been set\n", key.c_str(), value.c_str());
- }
-}
-
-void ShellContext::scan(const string & db,
- const string & start_key,
- const string & end_key,
- const string & limit) {
- vector<pair<string, string> > kvs;
- if (clientProxy_->scan(db, start_key, end_key, limit, kvs)) {
- for(unsigned int i = 0; i < kvs.size(); ++i) {
- printf("%d (%s, %s)\n", i, kvs[i].first.c_str(), kvs[i].second.c_str());
- }
- }
-}
-
-void ShellContext::run(void) {
- while(!exit_) {
- pShellState_->run(this);
- }
-}
-
-ShellContext::ShellContext(int argc, char ** argv) :
- pShellState_(ShellStateStart::getInstance()),
- exit_(false),
- argc_(argc),
- argv_(argv),
- port_(-1),
- clientProxy_() {
-}
-
-
+++ /dev/null
-#ifndef TOOLS_SHELL_SHELLCONTEXT
-#define TOOLS_SHELL_SHELLCONTEXT
-
-#include <map>
-#include <string>
-#include <boost/utility.hpp>
-#include <boost/shared_ptr.hpp>
-
-#include "DB.h"
-#include "DBClientProxy.h"
-
-class ShellState;
-
-class ShellContext : private boost::noncopyable {
- public:
- void changeState(ShellState * pState);
-
- void stop(void);
-
- bool ParseInput(void);
-
- void connect(void);
-
- void get(const std::string & db,
- const std::string & key);
-
- void put(const std::string & db,
- const std::string & key,
- const std::string & value);
-
- void scan(const std::string & db,
- const std::string & start_key,
- const std::string & end_key,
- const std::string & limit);
-
- void create(const std::string & db);
-
- void run(void);
-
- ShellContext(int argc, char ** argv);
-
- private:
- ShellState * pShellState_;
- bool exit_;
- int argc_;
- char ** argv_;
- int port_;
- boost::shared_ptr<rocksdb::DBClientProxy> clientProxy_;
-};
-
-#endif
+++ /dev/null
-#include <iostream>
-#include <string>
-#include <sstream>
-#include <vector>
-
-#include "ShellState.h"
-#include "ShellContext.h"
-#include "transport/TTransportException.h"
-
-using namespace std;
-
-using namespace apache::thrift::transport;
-
-const char * PMT = ">> ";
-
-
-void ShellStateStart::run(ShellContext * c) {
- if(!c->ParseInput()) {
- c->changeState(ShellStateStop::getInstance());
- } else {
- c->changeState(ShellStateConnecting::getInstance());
- }
-}
-
-
-void ShellStateStop::run(ShellContext * c) {
- c->stop();
-}
-
-void ShellStateConnecting::run(ShellContext * c) {
- try {
- c->connect();
- } catch (const TTransportException & e) {
- cout << e.what() << endl;
- c->changeState(ShellStateStop::getInstance());
- return;
- }
-
- c->changeState(ShellStateConnected::getInstance());
-}
-
-void ShellStateConnected::unknownCmd(void) {
- cout << "Unknown command!" << endl;
- cout << "Use help to list all available commands" << endl;
-}
-
-void ShellStateConnected::helpMsg(void) {
- cout << "Currently supported commands:" << endl;
- cout << "create db" << endl;
- cout << "get db key" << endl;
- cout << "scan db start_key end_key limit" << endl;
- cout << "put db key value" << endl;
- cout << "exit/quit" << endl;
-}
-
-void ShellStateConnected::handleConError(ShellContext * c) {
- cout << "Connection down" << endl;
- cout << "Reconnect ? (y/n) :" << endl;
- string s;
- while(getline(cin, s)) {
- if("y" == s) {
- c->changeState(ShellStateConnecting::getInstance());
- break;
- } else if("n" == s) {
- c->changeState(ShellStateStop::getInstance());
- break;
- } else {
- cout << "Reconnect ? (y/n) :" << endl;
- }
- }
-}
-
-void ShellStateConnected::run(ShellContext * c) {
- string line;
- cout << PMT;
- getline(cin, line);
- istringstream is(line);
- vector<string> params;
- string param;
- while(is >> param) {
- params.push_back(param);
- }
-
- // empty input line
- if(params.empty())
- return;
-
- if("quit" == params[0] || "exit" == params[0]) {
- c->changeState(ShellStateStop::getInstance());
- } else if("get" == params[0]) {
- if(params.size() == 3) {
- try {
- c->get(params[1], params[2]);
- } catch (const TTransportException & e) {
- cout << e.what() << endl;
- handleConError(c);
- }
- } else {
- unknownCmd();
- }
- } else if("create" == params[0]) {
- if(params.size() == 2) {
- try {
- c->create(params[1]);
- } catch (const TTransportException & e) {
- cout << e.what() << endl;
- handleConError(c);
- }
- } else {
- unknownCmd();
- }
- }else if("put" == params[0]) {
- if(params.size() == 4) {
- try {
- c->put(params[1], params[2], params[3]);
- } catch (const TTransportException & e) {
- cout << e.what() << endl;
- handleConError(c);
- }
- } else {
- unknownCmd();
- }
- } else if("scan" == params[0]) {
- if(params.size() == 5) {
- try {
- c->scan(params[1], params[2], params[3], params[4]);
- } catch (const TTransportException & e) {
- cout << e.what() << endl;
- handleConError(c);
- }
- } else {
- unknownCmd();
- }
- } else if("help" == params[0]) {
- helpMsg();
- } else {
- unknownCmd();
- }
-}
+++ /dev/null
-
-#ifndef TOOLS_SHELL_SHELLSTATE
-#define TOOLS_SHELL_SHELLSTATE
-
-class ShellContext;
-
-/*
- * Currently, there are four types of state in total
- * 1. start state: the first state the program enters
- * 2. connecting state: the program try to connnect to a rocksdb server, whose
- * previous states could be "start" or "connected" states
- * 3. connected states: the program has already connected to a server, and is
- * processing user commands
- * 4. stop state: the last state the program enters, do some cleanning up things
- */
-
-class ShellState {
- public:
- virtual void run(ShellContext *) = 0;
- virtual ~ShellState() {}
-};
-
-
-class ShellStateStart : public ShellState {
- public:
- static ShellStateStart * getInstance(void) {
- static ShellStateStart instance;
- return &instance;
- }
-
- virtual void run(ShellContext *);
-
- private:
- ShellStateStart() {}
- virtual ~ShellStateStart() {}
-};
-
-class ShellStateStop : public ShellState {
- public:
- static ShellStateStop * getInstance(void) {
- static ShellStateStop instance;
- return &instance;
- }
-
- virtual void run(ShellContext *);
-
- private:
- ShellStateStop() {}
- virtual ~ShellStateStop() {}
-
-};
-
-class ShellStateConnecting : public ShellState {
- public:
- static ShellStateConnecting * getInstance(void) {
- static ShellStateConnecting instance;
- return &instance;
- }
-
- virtual void run(ShellContext *);
-
- private:
- ShellStateConnecting() {}
- virtual ~ShellStateConnecting() {}
-
-};
-
-class ShellStateConnected : public ShellState {
- public:
- static ShellStateConnected * getInstance(void) {
- static ShellStateConnected instance;
- return &instance;
- }
-
- virtual void run(ShellContext *);
-
- private:
- ShellStateConnected() {}
- virtual ~ShellStateConnected() {}
-
- void unknownCmd();
- void handleConError(ShellContext *);
- void helpMsg();
-};
-
-#endif
-
+++ /dev/null
-/**
- * Tests for DBClientProxy class for leveldb
- * @author Bo Liu (newpoo.liu@gmail.com)
- * Copyright 2012 Facebook
- */
-
-#include <algorithm>
-#include <vector>
-#include <string>
-#include <protocol/TBinaryProtocol.h>
-#include <transport/TSocket.h>
-#include <transport/TBufferTransports.h>
-#include <util/testharness.h>
-#include <DB.h>
-#include <AssocService.h>
-#include <leveldb_types.h>
-
-#include "server_options.h"
-
-
-#include "../DBClientProxy.h"
-using namespace rocksdb;
-
-
-using namespace apache::thrift;
-using namespace apache::thrift::protocol;
-using namespace apache::thrift::transport;
-using boost::shared_ptr;
-using namespace Tleveldb;
-using namespace std;
-
-
-
-extern "C" void startServer(int argc, char**argv);
-extern "C" void stopServer(int port);
-extern ServerOptions server_options;
-
-static const string db1("db1");
-
-
-static void testDBClientProxy(DBClientProxy & dbcp) {
- bool flag;
- const int NOK = 100;
- const int BUFSIZE = 16;
- int testcase = 0;
-
- vector<string> keys, values;
- vector<pair<string, string> > kvs, correctKvs;
- string k, v;
-
- for(int i = 0; i < NOK; ++i) {
- char bufKey[BUFSIZE];
- char bufValue[BUFSIZE];
- snprintf(bufKey, BUFSIZE, "key%d", i);
- snprintf(bufValue, BUFSIZE, "value%d", i);
- keys.push_back(bufKey);
- values.push_back(bufValue);
- correctKvs.push_back((make_pair(string(bufKey), string(bufValue))));
- }
-
- sort(correctKvs.begin(), correctKvs.end());
-
-
- // can not do get(), put(), scan() or create() before connected.
- flag = dbcp.get(db1, keys[0], v);
- ASSERT_TRUE(false == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
- flag = dbcp.put(db1, keys[0], keys[1]);
- ASSERT_TRUE(false == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
- flag = dbcp.scan(db1, "a", "w", "100", kvs);
- ASSERT_TRUE(false == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
- flag = dbcp.create(db1);
- ASSERT_TRUE(false == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
- dbcp.connect();
-
- // create a database
- flag = dbcp.create(db1);
- ASSERT_TRUE(true == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
- // no such key
- flag = dbcp.get(db1, keys[0], v);
- ASSERT_TRUE(false == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
-
- // scan() success with empty returned key-value pairs
- kvs.clear();
- flag = dbcp.scan(db1, "a", "w", "100", kvs);
- ASSERT_TRUE(true == flag);
- ASSERT_TRUE(kvs.empty());
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
-
- // put()
- for(int i = 0; i < NOK; ++i) {
- flag = dbcp.put(db1, keys[i], values[i]);
- ASSERT_TRUE(true == flag);
- }
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
-
- // scan all of key-value pairs
- kvs.clear();
- flag = dbcp.scan(db1, "a", "w", "100", kvs);
- ASSERT_TRUE(true == flag);
- ASSERT_TRUE(kvs == correctKvs);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
-
- // scan the first 20 key-value pairs
- {
- kvs.clear();
- flag = dbcp.scan(db1, "a", "w", "20", kvs);
- ASSERT_TRUE(true == flag);
- vector<pair<string, string> > tkvs(correctKvs.begin(), correctKvs.begin() + 20);
- ASSERT_TRUE(kvs == tkvs);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
- }
-
- // scan key[10] to key[50]
- {
- kvs.clear();
- flag = dbcp.scan(db1, correctKvs[10].first, correctKvs[50].first, "100", kvs);
- ASSERT_TRUE(true == flag);
-
- vector<pair<string, string> > tkvs(correctKvs.begin() + 10, correctKvs.begin() + 50);
- ASSERT_TRUE(kvs == tkvs);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
- }
-
- // scan "key10" to "key40" by limit constraint
- {
- kvs.clear();
- flag = dbcp.scan(db1, correctKvs[10].first.c_str(), "w", "30", kvs);
- ASSERT_TRUE(true == flag);
- vector<pair<string, string> > tkvs(correctKvs.begin() + 10, correctKvs.begin() + 40);
- ASSERT_TRUE(kvs == tkvs);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
- }
-
-
- // get()
- flag = dbcp.get(db1, "unknownKey", v);
- ASSERT_TRUE(false == flag);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-
- flag = dbcp.get(db1, keys[0], v);
- ASSERT_TRUE(true == flag);
- ASSERT_TRUE(v == values[0]);
- printf("\033[01;40;32mTEST CASE %d passed\033[01;40;37m\n", ++testcase);
-}
-
-
-
-static void cleanupDir(std::string dir) {
- // remove old data, if any
- char* cleanup = new char[100];
- snprintf(cleanup, 100, "rm -rf %s", dir.c_str());
- system(cleanup);
-}
-
-int main(int argc, char **argv) {
- // create a server
- startServer(argc, argv);
- printf("Server thread created.\n");
-
- // give some time to the server to initialize itself
- while (server_options.getPort() == 0) {
- sleep(1);
- }
-
- cleanupDir(server_options.getDataDirectory(db1));
-
- DBClientProxy dbcp("localhost", server_options.getPort());
- testDBClientProxy(dbcp);
-}
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "db/dbformat.h"
-#include "db/memtable.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/table.h"
-#include "table/block.h"
-#include "table/block_builder.h"
-#include "table/format.h"
-#include "util/ldb_cmd.h"
-#include "util/random.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-class SstFileReader {
- public:
- explicit SstFileReader(const std::string& file_name,
- bool verify_checksum,
- bool output_hex);
-
- Status ReadSequential(bool print_kv,
- uint64_t read_num,
- bool has_from,
- const std::string& from_key,
- bool has_to,
- const std::string& to_key);
-
- uint64_t GetReadNumber() { return read_num_; }
-
-private:
- std::string file_name_;
- uint64_t read_num_;
- bool verify_checksum_;
- bool output_hex_;
- EnvOptions soptions_;
-};
-
-SstFileReader::SstFileReader(const std::string& file_path,
- bool verify_checksum,
- bool output_hex)
- :file_name_(file_path), read_num_(0), verify_checksum_(verify_checksum),
- output_hex_(output_hex) {
- std::cout << "Process " << file_path << "\n";
-}
-
-Status SstFileReader::ReadSequential(bool print_kv,
- uint64_t read_num,
- bool has_from,
- const std::string& from_key,
- bool has_to,
- const std::string& to_key)
-{
- unique_ptr<TableReader> table_reader;
- InternalKeyComparator internal_comparator_(BytewiseComparator());
- Options table_options;
- table_options.comparator = &internal_comparator_;
- unique_ptr<RandomAccessFile> file;
- Status s = table_options.env->NewRandomAccessFile(file_name_, &file,
- soptions_);
- if(!s.ok()) {
- return s;
- }
- uint64_t file_size;
- table_options.env->GetFileSize(file_name_, &file_size);
- unique_ptr<TableFactory> table_factory;
- s = table_options.table_factory->GetTableReader(table_options, soptions_,
- std::move(file), file_size,
- &table_reader);
- if(!s.ok()) {
- return s;
- }
-
- Iterator* iter = table_reader->NewIterator(ReadOptions(verify_checksum_,
- false));
- uint64_t i = 0;
- if (has_from) {
- InternalKey ikey(from_key, kMaxSequenceNumber, kValueTypeForSeek);
- iter->Seek(ikey.Encode());
- } else {
- iter->SeekToFirst();
- }
- for (; iter->Valid(); iter->Next()) {
- Slice key = iter->key();
- Slice value = iter->value();
- ++i;
- if (read_num > 0 && i > read_num)
- break;
-
- ParsedInternalKey ikey;
- if (!ParseInternalKey(key, &ikey)) {
- std::cerr << "Internal Key ["
- << key.ToString(true /* in hex*/)
- << "] parse error!\n";
- continue;
- }
-
- // If end marker was specified, we stop before it
- if (has_to && BytewiseComparator()->Compare(ikey.user_key, to_key) >= 0) {
- break;
- }
-
- if (print_kv) {
- std::cout << ikey.DebugString(output_hex_)
- << " => "
- << value.ToString(output_hex_) << "\n";
- }
-
- }
-
- read_num_ += i;
-
- Status ret = iter->status();
- delete iter;
- return ret;
-}
-
-} // namespace rocksdb
-
-static void print_help() {
- fprintf(stderr,
- "sst_dump [--command=check|scan] [--verify_checksum] "
- "--file=data_dir_OR_sst_file"
- " [--output_hex]"
- " [--input_key_hex]"
- " [--from=<user_key>]"
- " [--to=<user_key>]"
- " [--read_num=NUM]\n");
-}
-
-string HexToString(const string& str) {
- string parsed;
- if (str[0] != '0' || str[1] != 'x') {
- fprintf(stderr, "Invalid hex input %s. Must start with 0x\n",
- str.c_str());
- throw "Invalid hex input";
- }
-
- for (unsigned int i = 2; i < str.length();) {
- int c;
- sscanf(str.c_str() + i, "%2X", &c);
- parsed.push_back(c);
- i += 2;
- }
- return parsed;
-}
-
-int main(int argc, char** argv) {
-
- const char* dir_or_file = nullptr;
- uint64_t read_num = -1;
- std::string command;
-
- char junk;
- uint64_t n;
- bool verify_checksum = false;
- bool output_hex = false;
- bool input_key_hex = false;
- bool has_from = false;
- bool has_to = false;
- std::string from_key;
- std::string to_key;
- for (int i = 1; i < argc; i++)
- {
- if (strncmp(argv[i], "--file=", 7) == 0) {
- dir_or_file = argv[i] + 7;
- } else if (strcmp(argv[i], "--output_hex") == 0) {
- output_hex = true;
- } else if (strcmp(argv[i], "--input_key_hex") == 0) {
- input_key_hex = true;
- } else if (sscanf(argv[i],
- "--read_num=%lu%c",
- (unsigned long*)&n, &junk) == 1) {
- read_num = n;
- } else if (strcmp(argv[i], "--verify_checksum") == 0) {
- verify_checksum = true;
- } else if (strncmp(argv[i], "--command=", 10) == 0) {
- command = argv[i] + 10;
- } else if (strncmp(argv[i], "--from=", 7) == 0) {
- from_key = argv[i] + 7;
- has_from = true;
- } else if (strncmp(argv[i], "--to=", 5) == 0) {
- to_key = argv[i] + 5;
- has_to = true;
- }else {
- print_help();
- exit(1);
- }
- }
-
-
- if (input_key_hex) {
- if (has_from) {
- from_key = HexToString(from_key);
- }
- if (has_to) {
- to_key = HexToString(to_key);
- }
- }
-
- if(dir_or_file == nullptr) {
- print_help();
- exit(1);
- }
-
- std::vector<std::string> filenames;
- rocksdb::Env* env = rocksdb::Env::Default();
- rocksdb::Status st = env->GetChildren(dir_or_file, &filenames);
- bool dir = true;
- if (!st.ok()) {
- filenames.clear();
- filenames.push_back(dir_or_file);
- dir = false;
- }
-
- std::cout << "from [" << rocksdb::Slice(from_key).ToString(true)
- << "] to [" << rocksdb::Slice(to_key).ToString(true) << "]\n";
-
- uint64_t total_read = 0;
- for (size_t i = 0; i < filenames.size(); i++) {
- std::string filename = filenames.at(i);
- if (filename.length() <= 4 ||
- filename.rfind(".sst") != filename.length() - 4) {
- //ignore
- continue;
- }
- if(dir) {
- filename = std::string(dir_or_file) + "/" + filename;
- }
- rocksdb::SstFileReader reader(filename, verify_checksum,
- output_hex);
- rocksdb::Status st;
- // scan all files in give file path.
- if (command == "" || command == "scan" || command == "check") {
- st = reader.ReadSequential(command != "check",
- read_num > 0 ? (read_num - total_read) :
- read_num,
- has_from, from_key, has_to, to_key);
- if (!st.ok()) {
- fprintf(stderr, "%s: %s\n", filename.c_str(),
- st.ToString().c_str());
- }
- total_read += reader.GetReadNumber();
- if (read_num > 0 && total_read > read_num) {
- break;
- }
- }
- }
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/arena_impl.h"
-
-namespace rocksdb {
-
-ArenaImpl::ArenaImpl(size_t block_size) {
- if (block_size < kMinBlockSize) {
- block_size_ = kMinBlockSize;
- } else if (block_size > kMaxBlockSize) {
- block_size_ = kMaxBlockSize;
- } else {
- block_size_ = block_size;
- }
-
- blocks_memory_ = 0;
- alloc_ptr_ = nullptr; // First allocation will allocate a block
- alloc_bytes_remaining_ = 0;
-}
-
-ArenaImpl::~ArenaImpl() {
- for (size_t i = 0; i < blocks_.size(); i++) {
- delete[] blocks_[i];
- }
-}
-
-char* ArenaImpl::AllocateFallback(size_t bytes) {
- if (bytes > block_size_ / 4) {
- // Object is more than a quarter of our block size. Allocate it separately
- // to avoid wasting too much space in leftover bytes.
- char* result = AllocateNewBlock(bytes);
- return result;
- }
-
- // We waste the remaining space in the current block.
- alloc_ptr_ = AllocateNewBlock(block_size_);
- alloc_bytes_remaining_ = block_size_;
-
- char* result = alloc_ptr_;
- alloc_ptr_ += bytes;
- alloc_bytes_remaining_ -= bytes;
- return result;
-}
-
-char* ArenaImpl::AllocateAligned(size_t bytes) {
- const int align = sizeof(void*); // We'll align to pointer size
- assert((align & (align-1)) == 0); // Pointer size should be a power of 2
- size_t current_mod = reinterpret_cast<uintptr_t>(alloc_ptr_) & (align-1);
- size_t slop = (current_mod == 0 ? 0 : align - current_mod);
- size_t needed = bytes + slop;
- char* result;
- if (needed <= alloc_bytes_remaining_) {
- result = alloc_ptr_ + slop;
- alloc_ptr_ += needed;
- alloc_bytes_remaining_ -= needed;
- } else {
- // AllocateFallback always returned aligned memory
- result = AllocateFallback(bytes);
- }
- assert((reinterpret_cast<uintptr_t>(result) & (align-1)) == 0);
- return result;
-}
-
-char* ArenaImpl::AllocateNewBlock(size_t block_bytes) {
- char* result = new char[block_bytes];
- blocks_memory_ += block_bytes;
- blocks_.push_back(result);
- return result;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-// ArenaImpl is an implementation of Arena class. For a request of small size,
-// it allocates a block with pre-defined block size. For a request of big
-// size, it uses malloc to directly get the requested size.
-
-#pragma once
-#include <cstddef>
-#include <vector>
-#include <assert.h>
-#include <stdint.h>
-#include "rocksdb/arena.h"
-
-namespace rocksdb {
-
-class ArenaImpl : public Arena {
- public:
- explicit ArenaImpl(size_t block_size = kMinBlockSize);
- virtual ~ArenaImpl();
-
- virtual char* Allocate(size_t bytes);
-
- virtual char* AllocateAligned(size_t bytes);
-
- // Returns an estimate of the total memory usage of data allocated
- // by the arena (including space allocated but not yet used for user
- // allocations).
- //
- // TODO: Do we need to exclude space allocated but not used?
- virtual const size_t ApproximateMemoryUsage() {
- return blocks_memory_ + blocks_.capacity() * sizeof(char*);
- }
-
- virtual const size_t MemoryAllocatedBytes() {
- return blocks_memory_;
- }
-
- private:
- char* AllocateFallback(size_t bytes);
- char* AllocateNewBlock(size_t block_bytes);
-
- static const size_t kMinBlockSize = 4096;
- static const size_t kMaxBlockSize = 2 << 30;
-
- // Number of bytes allocated in one block
- size_t block_size_;
-
- // Allocation state
- char* alloc_ptr_;
- size_t alloc_bytes_remaining_;
-
- // Array of new[] allocated memory blocks
- std::vector<char*> blocks_;
-
- // Bytes of memory in blocks allocated so far
- size_t blocks_memory_;
-
- // No copying allowed
- ArenaImpl(const ArenaImpl&);
- void operator=(const ArenaImpl&);
-};
-
-inline char* ArenaImpl::Allocate(size_t bytes) {
- // The semantics of what to return are a bit messy if we allow
- // 0-byte allocations, so we disallow them here (we don't need
- // them for our internal use).
- assert(bytes > 0);
- if (bytes <= alloc_bytes_remaining_) {
- char* result = alloc_ptr_;
- alloc_ptr_ += bytes;
- alloc_bytes_remaining_ -= bytes;
- return result;
- }
- return AllocateFallback(bytes);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/arena_impl.h"
-#include "util/random.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-class ArenaImplTest { };
-
-TEST(ArenaImplTest, Empty) {
- ArenaImpl arena0;
-}
-
-TEST(ArenaImplTest, MemoryAllocatedBytes) {
- const int N = 17;
- size_t req_sz; //requested size
- size_t bsz = 8192; // block size
- size_t expected_memory_allocated;
-
- ArenaImpl arena_impl(bsz);
-
- // requested size > quarter of a block:
- // allocate requested size separately
- req_sz = 3001;
- for (int i = 0; i < N; i++) {
- arena_impl.Allocate(req_sz);
- }
- expected_memory_allocated = req_sz * N;
- ASSERT_EQ(arena_impl.MemoryAllocatedBytes(), expected_memory_allocated);
-
- // requested size < quarter of a block:
- // allocate a block with the default size, then try to use unused part
- // of the block. So one new block will be allocated for the first
- // Allocate(99) call. All the remaining calls won't lead to new allocation.
- req_sz = 99;
- for (int i = 0; i < N; i++) {
- arena_impl.Allocate(req_sz);
- }
- expected_memory_allocated += bsz;
- ASSERT_EQ(arena_impl.MemoryAllocatedBytes(), expected_memory_allocated);
-
- // requested size > quarter of a block:
- // allocate requested size separately
- req_sz = 99999999;
- for (int i = 0; i < N; i++) {
- arena_impl.Allocate(req_sz);
- }
- expected_memory_allocated += req_sz * N;
- ASSERT_EQ(arena_impl.MemoryAllocatedBytes(), expected_memory_allocated);
-}
-
-TEST(ArenaImplTest, Simple) {
- std::vector<std::pair<size_t, char*> > allocated;
- ArenaImpl arena_impl;
- const int N = 100000;
- size_t bytes = 0;
- Random rnd(301);
- for (int i = 0; i < N; i++) {
- size_t s;
- if (i % (N / 10) == 0) {
- s = i;
- } else {
- s = rnd.OneIn(4000) ? rnd.Uniform(6000) :
- (rnd.OneIn(10) ? rnd.Uniform(100) : rnd.Uniform(20));
- }
- if (s == 0) {
- // Our arena disallows size 0 allocations.
- s = 1;
- }
- char* r;
- if (rnd.OneIn(10)) {
- r = arena_impl.AllocateAligned(s);
- } else {
- r = arena_impl.Allocate(s);
- }
-
- for (unsigned int b = 0; b < s; b++) {
- // Fill the "i"th allocation with a known bit pattern
- r[b] = i % 256;
- }
- bytes += s;
- allocated.push_back(std::make_pair(s, r));
- ASSERT_GE(arena_impl.ApproximateMemoryUsage(), bytes);
- if (i > N/10) {
- ASSERT_LE(arena_impl.ApproximateMemoryUsage(), bytes * 1.10);
- }
- }
- for (unsigned int i = 0; i < allocated.size(); i++) {
- size_t num_bytes = allocated[i].first;
- const char* p = allocated[i].second;
- for (unsigned int b = 0; b < num_bytes; b++) {
- // Check the "i"th allocation for the known bit pattern
- ASSERT_EQ(int(p[b]) & 0xff, (int)(i % 256));
- }
- }
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "util/auto_roll_logger.h"
-#include "util/mutexlock.h"
-
-using namespace std;
-
-namespace rocksdb {
-
-// -- AutoRollLogger
-Status AutoRollLogger::ResetLogger() {
- status_ = env_->NewLogger(log_fname_, &logger_);
-
- if (!status_.ok()) {
- return status_;
- }
-
- if (logger_->GetLogFileSize() ==
- (size_t)Logger::DO_NOT_SUPPORT_GET_LOG_FILE_SIZE) {
- status_ = Status::NotSupported(
- "The underlying logger doesn't support GetLogFileSize()");
- }
- if (status_.ok()) {
- cached_now = static_cast<uint64_t>(env_->NowMicros() * 1e-6);
- ctime_ = cached_now;
- cached_now_access_count = 0;
- }
-
- return status_;
-}
-
-void AutoRollLogger::RollLogFile() {
- std::string old_fname = OldInfoLogFileName(
- dbname_, env_->NowMicros(), db_absolute_path_, db_log_dir_);
- env_->RenameFile(log_fname_, old_fname);
-}
-
-void AutoRollLogger::Logv(const char* format, va_list ap) {
- assert(GetStatus().ok());
-
- std::shared_ptr<Logger> logger;
- {
- MutexLock l(&mutex_);
- if ((kLogFileTimeToRoll > 0 && LogExpired()) ||
- (kMaxLogFileSize > 0 && logger_->GetLogFileSize() >= kMaxLogFileSize)) {
- RollLogFile();
- ResetLogger();
- }
-
- // pin down the current logger_ instance before releasing the mutex.
- logger = logger_;
- }
-
- // Another thread could have put a new Logger instance into logger_ by now.
- // However, since logger is still hanging on to the previous instance
- // (reference count is not zero), we don't have to worry about it being
- // deleted while we are accessing it.
- // Note that logv itself is not mutex protected to allow maximum concurrency,
- // as thread safety should have been handled by the underlying logger.
- logger->Logv(format, ap);
-}
-
-bool AutoRollLogger::LogExpired() {
- if (cached_now_access_count >= call_NowMicros_every_N_records_) {
- cached_now = static_cast<uint64_t>(env_->NowMicros() * 1e-6);
- cached_now_access_count = 0;
- }
-
- ++cached_now_access_count;
- return cached_now >= ctime_ + kLogFileTimeToRoll;
-}
-
-Status CreateLoggerFromOptions(
- const std::string& dbname,
- const std::string& db_log_dir,
- Env* env,
- const Options& options,
- std::shared_ptr<Logger>* logger) {
- std::string db_absolute_path;
- env->GetAbsolutePath(dbname, &db_absolute_path);
- std::string fname = InfoLogFileName(dbname, db_absolute_path, db_log_dir);
-
- // Currently we only support roll by time-to-roll and log size
- if (options.log_file_time_to_roll > 0 || options.max_log_file_size > 0) {
- AutoRollLogger* result = new AutoRollLogger(
- env, dbname, db_log_dir,
- options.max_log_file_size,
- options.log_file_time_to_roll);
- Status s = result->GetStatus();
- if (!s.ok()) {
- delete result;
- } else {
- logger->reset(result);
- }
- return s;
- } else {
- // Open a log file in the same directory as the db
- env->CreateDir(dbname); // In case it does not exist
- env->RenameFile(fname, OldInfoLogFileName(dbname, env->NowMicros(),
- db_absolute_path, db_log_dir));
- return env->NewLogger(fname, logger);
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Logger implementation that can be shared by all environments
-// where enough posix functionality is available.
-
-#pragma once
-#include "db/filename.h"
-#include "port/port.h"
-#include "util/posix_logger.h"
-
-namespace rocksdb {
-
-// Rolls the log file by size and/or time
-class AutoRollLogger : public Logger {
- public:
- AutoRollLogger(Env* env, const std::string& dbname,
- const std::string& db_log_dir,
- size_t log_max_size,
- size_t log_file_time_to_roll):
- dbname_(dbname),
- db_log_dir_(db_log_dir),
- env_(env),
- status_(Status::OK()),
- kMaxLogFileSize(log_max_size),
- kLogFileTimeToRoll(log_file_time_to_roll),
- cached_now(static_cast<uint64_t>(env_->NowMicros() * 1e-6)),
- ctime_(cached_now),
- cached_now_access_count(0),
- call_NowMicros_every_N_records_(100),
- mutex_() {
- env->GetAbsolutePath(dbname, &db_absolute_path_);
- log_fname_ = InfoLogFileName(dbname_, db_absolute_path_, db_log_dir_);
- RollLogFile();
- ResetLogger();
- }
-
- void Logv(const char* format, va_list ap);
-
- // check if the logger has encountered any problem.
- Status GetStatus() {
- return status_;
- }
-
- size_t GetLogFileSize() const {
- return logger_->GetLogFileSize();
- }
-
- virtual ~AutoRollLogger() {
- }
-
- void SetCallNowMicrosEveryNRecords(uint64_t call_NowMicros_every_N_records) {
- call_NowMicros_every_N_records_ = call_NowMicros_every_N_records;
- }
-
- private:
-
- bool LogExpired();
- Status ResetLogger();
- void RollLogFile();
-
- std::string log_fname_; // Current active info log's file name.
- std::string dbname_;
- std::string db_log_dir_;
- std::string db_absolute_path_;
- Env* env_;
- std::shared_ptr<Logger> logger_;
- // current status of the logger
- Status status_;
- const size_t kMaxLogFileSize;
- const size_t kLogFileTimeToRoll;
- // to avoid frequent env->NowMicros() calls, we cached the current time
- uint64_t cached_now;
- uint64_t ctime_;
- uint64_t cached_now_access_count;
- uint64_t call_NowMicros_every_N_records_;
- port::Mutex mutex_;
-};
-
-// Facade to craete logger automatically
-Status CreateLoggerFromOptions(
- const std::string& dbname,
- const std::string& db_log_dir,
- Env* env,
- const Options& options,
- std::shared_ptr<Logger>* logger);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <string>
-#include <cmath>
-#include "util/testharness.h"
-#include "util/auto_roll_logger.h"
-#include "rocksdb/db.h"
-#include <sys/stat.h>
-#include <errno.h>
-#include <iostream>
-
-using namespace std;
-
-namespace rocksdb {
-
-class AutoRollLoggerTest {
- public:
- static void InitTestDb() {
- string deleteCmd = "rm -rf " + kTestDir;
- ASSERT_TRUE(system(deleteCmd.c_str()) == 0);
- Env::Default()->CreateDir(kTestDir);
- }
-
- void RollLogFileBySizeTest(AutoRollLogger* logger,
- size_t log_max_size,
- const string& log_message);
- uint64_t RollLogFileByTimeTest(AutoRollLogger* logger,
- size_t time,
- const string& log_message);
-
- static const string kSampleMessage;
- static const string kTestDir;
- static const string kLogFile;
- static Env* env;
-};
-
-const string AutoRollLoggerTest::kSampleMessage(
- "this is the message to be written to the log file!!");
-const string AutoRollLoggerTest::kTestDir(
- test::TmpDir() + "/db_log_test");
-const string AutoRollLoggerTest::kLogFile(
- test::TmpDir() + "/db_log_test/LOG");
-Env* AutoRollLoggerTest::env = Env::Default();
-
-// In this test we only want to Log some simple log message with
-// no format. LogMessage() provides such a simple interface and
-// avoids the [format-security] warning which occurs when you
-// call Log(logger, log_message) directly.
-void LogMessage(Logger* logger, const char* message) {
- Log(logger, "%s", message);
-}
-
-void GetFileCreateTime(const std::string& fname, uint64_t* file_ctime) {
- struct stat s;
- if (stat(fname.c_str(), &s) != 0) {
- *file_ctime = (uint64_t)0;
- }
- *file_ctime = static_cast<uint64_t>(s.st_ctime);
-}
-
-void AutoRollLoggerTest::RollLogFileBySizeTest(AutoRollLogger* logger,
- size_t log_max_size,
- const string& log_message) {
- // measure the size of each message, which is supposed
- // to be equal or greater than log_message.size()
- LogMessage(logger, log_message.c_str());
- size_t message_size = logger->GetLogFileSize();
- size_t current_log_size = message_size;
-
- // Test the cases when the log file will not be rolled.
- while (current_log_size + message_size < log_max_size) {
- LogMessage(logger, log_message.c_str());
- current_log_size += message_size;
- ASSERT_EQ(current_log_size, logger->GetLogFileSize());
- }
-
- // Now the log file will be rolled
- LogMessage(logger, log_message.c_str());
- // Since rotation is checked before actual logging, we need to
- // trigger the rotation by logging another message.
- LogMessage(logger, log_message.c_str());
-
- ASSERT_TRUE(message_size == logger->GetLogFileSize());
-}
-
-uint64_t AutoRollLoggerTest::RollLogFileByTimeTest(
- AutoRollLogger* logger, size_t time, const string& log_message) {
- uint64_t expected_create_time;
- uint64_t actual_create_time;
- uint64_t total_log_size;
- ASSERT_OK(env->GetFileSize(kLogFile, &total_log_size));
- GetFileCreateTime(kLogFile, &expected_create_time);
- logger->SetCallNowMicrosEveryNRecords(0);
-
- // -- Write to the log for several times, which is supposed
- // to be finished before time.
- for (int i = 0; i < 10; ++i) {
- LogMessage(logger, log_message.c_str());
- ASSERT_OK(logger->GetStatus());
- // Make sure we always write to the same log file (by
- // checking the create time);
- GetFileCreateTime(kLogFile, &actual_create_time);
-
- // Also make sure the log size is increasing.
- ASSERT_EQ(expected_create_time, actual_create_time);
- ASSERT_GT(logger->GetLogFileSize(), total_log_size);
- total_log_size = logger->GetLogFileSize();
- }
-
- // -- Make the log file expire
- sleep(time);
- LogMessage(logger, log_message.c_str());
-
- // At this time, the new log file should be created.
- GetFileCreateTime(kLogFile, &actual_create_time);
- ASSERT_GT(actual_create_time, expected_create_time);
- ASSERT_LT(logger->GetLogFileSize(), total_log_size);
- expected_create_time = actual_create_time;
-
- return expected_create_time;
-}
-
-TEST(AutoRollLoggerTest, RollLogFileBySize) {
- InitTestDb();
- size_t log_max_size = 1024 * 5;
-
- AutoRollLogger logger(Env::Default(), kTestDir, "", log_max_size, 0);
-
- RollLogFileBySizeTest(&logger, log_max_size,
- kSampleMessage + ":RollLogFileBySize");
-
-}
-
-TEST(AutoRollLoggerTest, RollLogFileByTime) {
- size_t time = 1;
- size_t log_size = 1024 * 5;
-
- InitTestDb();
- // -- Test the existence of file during the server restart.
- ASSERT_TRUE(!env->FileExists(kLogFile));
- AutoRollLogger logger(Env::Default(), kTestDir, "", log_size, 1);
- ASSERT_TRUE(env->FileExists(kLogFile));
-
- RollLogFileByTimeTest(&logger, time, kSampleMessage + ":RollLogFileByTime");
-}
-
-TEST(AutoRollLoggerTest,
- OpenLogFilesMultipleTimesWithOptionLog_max_size) {
- // If only 'log_max_size' options is specified, then every time
- // when rocksdb is restarted, a new empty log file will be created.
- InitTestDb();
- // WORKAROUND:
- // avoid complier's complaint of "comparison between signed
- // and unsigned integer expressions" because literal 0 is
- // treated as "singed".
- size_t kZero = 0;
- size_t log_size = 1024;
-
- AutoRollLogger* logger = new AutoRollLogger(
- Env::Default(), kTestDir, "", log_size, 0);
-
- LogMessage(logger, kSampleMessage.c_str());
- ASSERT_GT(logger->GetLogFileSize(), kZero);
- delete logger;
-
- // reopens the log file and an empty log file will be created.
- logger = new AutoRollLogger(
- Env::Default(), kTestDir, "", log_size, 0);
- ASSERT_EQ(logger->GetLogFileSize(), kZero);
- delete logger;
-}
-
-TEST(AutoRollLoggerTest, CompositeRollByTimeAndSizeLogger) {
- size_t time = 1, log_max_size = 1024 * 5;
-
- InitTestDb();
-
- AutoRollLogger logger(Env::Default(), kTestDir, "", log_max_size, time);
-
- // Test the ability to roll by size
- RollLogFileBySizeTest(
- &logger, log_max_size,
- kSampleMessage + ":CompositeRollByTimeAndSizeLogger");
-
- // Test the ability to roll by Time
- RollLogFileByTimeTest( &logger, time,
- kSampleMessage + ":CompositeRollByTimeAndSizeLogger");
-}
-
-TEST(AutoRollLoggerTest, CreateLoggerFromOptions) {
- Options options;
- shared_ptr<Logger> logger;
-
- // Normal logger
- ASSERT_OK(CreateLoggerFromOptions(kTestDir, "", env, options, &logger));
- ASSERT_TRUE(dynamic_cast<PosixLogger*>(logger.get()));
-
- // Only roll by size
- InitTestDb();
- options.max_log_file_size = 1024;
- ASSERT_OK(CreateLoggerFromOptions(kTestDir, "", env, options, &logger));
- AutoRollLogger* auto_roll_logger =
- dynamic_cast<AutoRollLogger*>(logger.get());
- ASSERT_TRUE(auto_roll_logger);
- RollLogFileBySizeTest(
- auto_roll_logger, options.max_log_file_size,
- kSampleMessage + ":CreateLoggerFromOptions - size");
-
- // Only roll by Time
- InitTestDb();
- options.max_log_file_size = 0;
- options.log_file_time_to_roll = 1;
- ASSERT_OK(CreateLoggerFromOptions(kTestDir, "", env, options, &logger));
- auto_roll_logger =
- dynamic_cast<AutoRollLogger*>(logger.get());
- RollLogFileByTimeTest(
- auto_roll_logger, options.log_file_time_to_roll,
- kSampleMessage + ":CreateLoggerFromOptions - time");
-
- // roll by both Time and size
- InitTestDb();
- options.max_log_file_size = 1024 * 5;
- options.log_file_time_to_roll = 1;
- ASSERT_OK(CreateLoggerFromOptions(kTestDir, "", env, options, &logger));
- auto_roll_logger =
- dynamic_cast<AutoRollLogger*>(logger.get());
- RollLogFileBySizeTest(
- auto_roll_logger, options.max_log_file_size,
- kSampleMessage + ":CreateLoggerFromOptions - both");
- RollLogFileByTimeTest(
- auto_roll_logger, options.log_file_time_to_roll,
- kSampleMessage + ":CreateLoggerFromOptions - both");
-}
-
-int OldLogFileCount(const string& dir) {
- std::vector<std::string> files;
- Env::Default()->GetChildren(dir, &files);
- int log_file_count = 0;
-
- for (std::vector<std::string>::iterator it = files.begin();
- it != files.end(); ++it) {
- uint64_t create_time;
- FileType type;
- if (!ParseFileName(*it, &create_time, &type)) {
- continue;
- }
- if (type == kInfoLogFile && create_time > 0) {
- ++log_file_count;
- }
- }
-
- return log_file_count;
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-#include <cassert>
-
-namespace rocksdb {
-
-class BitSet {
- public:
- /**
- * Create a bit set of numBits, with the bits set to either true or false.
- */
- explicit BitSet(size_t numBits, bool initial=false)
- : numBits_(numBits),
- data_(numWords(), initial ? ~0UL : 0UL) {
- }
-
- /**
- * Set bit b to 1.
- */
- void set(size_t b) {
- assert(b >= 0 && b < numBits_);
- data_[word(b)] |= wordOffsetMask(b);
- }
-
- /**
- * Set bit b to 0;
- */
- void reset(size_t b) {
- assert(b >= 0 && b < numBits_);
- data_[word(b)] &= ~wordOffsetMask(b);
- }
-
- /**
- * Get a bit.
- */
- bool test(int b) const {
- return data_[word(b)] & wordOffsetMask(b);
- }
-
- /**
- * Return the size of the BitSet, in bits.
- */
- size_t size() const {
- return numBits_;
- }
-
- private:
-
- inline size_t numWords() const {
- if (numBits_ == 0) return 0;
- return 1 + (numBits_-1) / (8*sizeof(unsigned long));
- }
- inline static size_t word(int b) {
- return b / (8*sizeof(unsigned long));
- }
- inline static int wordOffset(int b) {
- return b % (8*sizeof(unsigned long));
- }
- inline static unsigned long wordOffsetMask(int b) {
- return 1UL << wordOffset(b);
- }
-
- size_t numBits_;
- std::vector<unsigned long> data_;
-};
-
-} // namespace facebook
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/blob_store.h"
-
-namespace rocksdb {
-
-using namespace std;
-
-// BlobChunk
-bool BlobChunk::ImmediatelyBefore(const BlobChunk& chunk) const {
- // overlapping!?
- assert(!Overlap(chunk));
- // size == 0 is a marker, not a block
- return size != 0 &&
- bucket_id == chunk.bucket_id &&
- offset + size == chunk.offset;
-}
-
-bool BlobChunk::Overlap(const BlobChunk &chunk) const {
- return size != 0 && chunk.size != 0 && bucket_id == chunk.bucket_id &&
- ((offset >= chunk.offset && offset < chunk.offset + chunk.size) ||
- (chunk.offset >= offset && chunk.offset < offset + size));
-}
-
-// Blob
-string Blob::ToString() const {
- string ret;
- for (auto chunk : chunks) {
- PutFixed32(&ret, chunk.bucket_id);
- PutFixed32(&ret, chunk.offset);
- PutFixed32(&ret, chunk.size);
- }
- return ret;
-}
-
-Blob::Blob(const std::string& blob) {
- for (uint32_t i = 0; i < blob.size(); ) {
- uint32_t t[3] = {0};
- for (int j = 0; j < 3 && i + sizeof(uint32_t) - 1 < blob.size();
- ++j, i += sizeof(uint32_t)) {
- t[j] = DecodeFixed32(blob.data() + i);
- }
- chunks.push_back(BlobChunk(t[0], t[1], t[2]));
- }
-}
-
-// FreeList
-Status FreeList::Free(const Blob& blob) {
- // add it back to the free list
- for (auto chunk : blob.chunks) {
- free_blocks_ += chunk.size;
- if (fifo_free_chunks_.size() &&
- fifo_free_chunks_.back().ImmediatelyBefore(chunk)) {
- fifo_free_chunks_.back().size += chunk.size;
- } else {
- fifo_free_chunks_.push_back(chunk);
- }
- }
-
- return Status::OK();
-}
-
-Status FreeList::Allocate(uint32_t blocks, Blob* blob) {
- if (free_blocks_ < blocks) {
- return Status::Incomplete("");
- }
-
- blob->chunks.clear();
- free_blocks_ -= blocks;
-
- while (blocks > 0) {
- assert(fifo_free_chunks_.size() > 0);
- auto& front = fifo_free_chunks_.front();
- if (front.size > blocks) {
- blob->chunks.push_back(BlobChunk(front.bucket_id, front.offset, blocks));
- front.offset += blocks;
- front.size -= blocks;
- blocks = 0;
- } else {
- blob->chunks.push_back(front);
- blocks -= front.size;
- fifo_free_chunks_.pop_front();
- }
- }
- assert(blocks == 0);
-
- return Status::OK();
-}
-
-bool FreeList::Overlap(const Blob &blob) const {
- for (auto chunk : blob.chunks) {
- for (auto itr = fifo_free_chunks_.begin();
- itr != fifo_free_chunks_.end();
- ++itr) {
- if (itr->Overlap(chunk)) {
- return true;
- }
- }
- }
- return false;
-}
-
-// BlobStore
-BlobStore::BlobStore(const string& directory,
- uint64_t block_size,
- uint32_t blocks_per_bucket,
- uint32_t max_buckets,
- Env* env) :
- directory_(directory),
- block_size_(block_size),
- blocks_per_bucket_(blocks_per_bucket),
- env_(env),
- max_buckets_(max_buckets) {
- env_->CreateDirIfMissing(directory_);
-
- storage_options_.use_mmap_writes = false;
- storage_options_.use_mmap_reads = false;
-
- buckets_size_ = 0;
- buckets_ = new unique_ptr<RandomRWFile>[max_buckets_];
-
- CreateNewBucket();
-}
-
-BlobStore::~BlobStore() {
- // TODO we don't care about recovery for now
- delete [] buckets_;
-}
-
-Status BlobStore::Put(const Slice& value, Blob* blob) {
- // convert size to number of blocks
- Status s = Allocate((value.size() + block_size_ - 1) / block_size_, blob);
- if (!s.ok()) {
- return s;
- }
- auto size_left = (uint64_t) value.size();
-
- uint64_t offset = 0; // in bytes, not blocks
- for (auto chunk : blob->chunks) {
- uint64_t write_size = min(chunk.size * block_size_, size_left);
- assert(chunk.bucket_id < buckets_size_);
- s = buckets_[chunk.bucket_id].get()->Write(chunk.offset * block_size_,
- Slice(value.data() + offset,
- write_size));
- if (!s.ok()) {
- Delete(*blob);
- return s;
- }
- offset += write_size;
- size_left -= write_size;
- if (write_size < chunk.size * block_size_) {
- // if we have any space left in the block, fill it up with zeros
- string zero_string(chunk.size * block_size_ - write_size, 0);
- s = buckets_[chunk.bucket_id].get()->Write(chunk.offset * block_size_ +
- write_size,
- Slice(zero_string));
- }
- }
-
- if (size_left > 0) {
- Delete(*blob);
- return Status::IOError("Tried to write more data than fits in the blob");
- }
-
- return Status::OK();
-}
-
-Status BlobStore::Get(const Blob& blob,
- string* value) const {
- {
- // assert that it doesn't overlap with free list
- // it will get compiled out for release
- MutexLock l(&free_list_mutex_);
- assert(!free_list_.Overlap(blob));
- }
-
- value->resize(blob.Size() * block_size_);
-
- uint64_t offset = 0; // in bytes, not blocks
- for (auto chunk : blob.chunks) {
- Slice result;
- assert(chunk.bucket_id < buckets_size_);
- Status s;
- s = buckets_[chunk.bucket_id].get()->Read(chunk.offset * block_size_,
- chunk.size * block_size_,
- &result,
- &value->at(offset));
- if (!s.ok() || result.size() < chunk.size * block_size_) {
- value->clear();
- return Status::IOError("Could not read in from file");
- }
- offset += chunk.size * block_size_;
- }
-
- // remove the '\0's at the end of the string
- value->erase(find(value->begin(), value->end(), '\0'), value->end());
-
- return Status::OK();
-}
-
-Status BlobStore::Delete(const Blob& blob) {
- MutexLock l(&free_list_mutex_);
- return free_list_.Free(blob);
-}
-
-Status BlobStore::Sync() {
- for (size_t i = 0; i < buckets_size_; ++i) {
- Status s = buckets_[i].get()->Sync();
- if (!s.ok()) {
- return s;
- }
- }
- return Status::OK();
-}
-
-Status BlobStore::Allocate(uint32_t blocks, Blob* blob) {
- MutexLock l(&free_list_mutex_);
- Status s;
-
- s = free_list_.Allocate(blocks, blob);
- if (!s.ok()) {
- s = CreateNewBucket();
- if (!s.ok()) {
- return s;
- }
- s = free_list_.Allocate(blocks, blob);
- }
-
- return s;
-}
-
-// called with free_list_mutex_ held
-Status BlobStore::CreateNewBucket() {
- MutexLock l(&buckets_mutex_);
-
- if (buckets_size_ >= max_buckets_) {
- return Status::IOError("Max size exceeded\n");
- }
-
- int new_bucket_id = buckets_size_;
-
- char fname[200];
- sprintf(fname, "%s/%d.bs", directory_.c_str(), new_bucket_id);
-
- Status s = env_->NewRandomRWFile(string(fname),
- &buckets_[new_bucket_id],
- storage_options_);
- if (!s.ok()) {
- return s;
- }
-
- // whether Allocate succeeds or not, does not affect the overall correctness
- // of this function - calling Allocate is really optional
- // (also, tmpfs does not support allocate)
- buckets_[new_bucket_id].get()->Allocate(0, block_size_ * blocks_per_bucket_);
-
- buckets_size_ = new_bucket_id + 1;
-
- return free_list_.Free(Blob(new_bucket_id, 0, blocks_per_bucket_));
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/env.h"
-#include "rocksdb/status.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-#include "util/coding.h"
-
-#include <list>
-#include <deque>
-#include <cstdint>
-#include <iostream>
-#include <stdexcept>
-#include <algorithm>
-#include <cstdio>
-
-namespace rocksdb {
-
-struct BlobChunk {
- uint32_t bucket_id;
- uint32_t offset; // in blocks
- uint32_t size; // in blocks
- BlobChunk() {}
- BlobChunk(uint32_t bucket_id, uint32_t offset, uint32_t size) :
- bucket_id(bucket_id), offset(offset), size(size) {}
-
- // returns true if it's immediately before chunk
- bool ImmediatelyBefore(const BlobChunk& chunk) const;
- // returns true if chunks overlap
- bool Overlap(const BlobChunk &chunk) const;
-};
-
-// We represent each Blob as a string in format:
-// bucket_id offset size|bucket_id offset size...
-// The string can be used to reference the Blob stored on external
-// device/file
-// Not thread-safe!
-struct Blob {
- // Generates the string
- std::string ToString() const;
- // Parses the previously generated string
- explicit Blob(const std::string& blob);
- // Creates unfragmented Blob
- Blob(uint32_t bucket_id, uint32_t offset, uint32_t size) {
- SetOneChunk(bucket_id, offset, size);
- }
- Blob() {}
-
- void SetOneChunk(uint32_t bucket_id, uint32_t offset, uint32_t size) {
- chunks.clear();
- chunks.push_back(BlobChunk(bucket_id, offset, size));
- }
-
- uint32_t Size() const { // in blocks
- uint32_t ret = 0;
- for (auto chunk : chunks) {
- ret += chunk.size;
- }
- assert(ret > 0);
- return ret;
- }
-
- // bucket_id, offset, size
- std::vector<BlobChunk> chunks;
-};
-
-// Keeps a list of free chunks
-// NOT thread-safe. Externally synchronized
-class FreeList {
- public:
- FreeList() :
- free_blocks_(0) {}
- ~FreeList() {}
-
- // Allocates a a blob. Stores the allocated blob in
- // 'blob'. Returns non-OK status if it failed to allocate.
- // Thread-safe
- Status Allocate(uint32_t blocks, Blob* blob);
- // Frees the blob for reuse. Thread-safe
- Status Free(const Blob& blob);
-
- // returns true if blob is overlapping with any of the
- // chunks stored in free list
- bool Overlap(const Blob &blob) const;
-
- private:
- std::deque<BlobChunk> fifo_free_chunks_;
- uint32_t free_blocks_;
- mutable port::Mutex mutex_;
-};
-
-// thread-safe
-class BlobStore {
- public:
- // directory - wherever the blobs should be stored. It will be created
- // if missing
- // block_size - self explanatory
- // blocks_per_bucket - how many blocks we want to keep in one bucket.
- // Bucket is a device or a file that we use to store the blobs.
- // If we don't have enough blocks to allocate a new blob, we will
- // try to create a new file or device.
- // max_buckets - maximum number of buckets BlobStore will create
- // BlobStore max size in bytes is
- // max_buckets * blocks_per_bucket * block_size
- // env - env for creating new files
- BlobStore(const std::string& directory,
- uint64_t block_size,
- uint32_t blocks_per_bucket,
- uint32_t max_buckets,
- Env* env);
- ~BlobStore();
-
- // Allocates space for value.size bytes (rounded up to be multiple of
- // block size) and writes value.size bytes from value.data to a backing store.
- // Sets Blob blob that can than be used for addressing the
- // stored value. Returns non-OK status on error.
- Status Put(const Slice& value, Blob* blob);
- // Value needs to have enough space to store all the loaded stuff.
- // This function is thread safe!
- Status Get(const Blob& blob, std::string* value) const;
- // Frees the blob for reuse, but does not delete the data
- // on the backing store.
- Status Delete(const Blob& blob);
- // Sync all opened files that are modified
- Status Sync();
-
- private:
- const std::string directory_;
- // block_size_ is uint64_t because when we multiply with
- // blocks_size_ we want the result to be uint64_t or
- // we risk overflowing
- const uint64_t block_size_;
- const uint32_t blocks_per_bucket_;
- Env* env_;
- EnvOptions storage_options_;
- // protected by free_list_mutex_
- FreeList free_list_;
- // free_list_mutex_ is locked BEFORE buckets_mutex_
- mutable port::Mutex free_list_mutex_;
- // protected by buckets_mutex_
- // array of buckets
- unique_ptr<RandomRWFile>* buckets_;
- // number of buckets in the array
- uint32_t buckets_size_;
- uint32_t max_buckets_;
- mutable port::Mutex buckets_mutex_;
-
- // Calls FreeList allocate. If free list can't allocate
- // new blob, creates new bucket and tries again
- // Thread-safe
- Status Allocate(uint32_t blocks, Blob* blob);
-
- // Creates a new backing store and adds all the blocks
- // from the new backing store to the free list
- Status CreateNewBucket();
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/blob_store.h"
-
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "util/random.h"
-
-#include <cstdlib>
-#include <string>
-
-namespace rocksdb {
-
-using namespace std;
-
-class BlobStoreTest { };
-
-TEST(BlobStoreTest, RangeParseTest) {
- Blob e;
- for (int i = 0; i < 5; ++i) {
- e.chunks.push_back(BlobChunk(rand(), rand(), rand()));
- }
- string x = e.ToString();
- Blob nx(x);
-
- ASSERT_EQ(nx.ToString(), x);
-}
-
-// make sure we're reusing the freed space
-TEST(BlobStoreTest, SanityTest) {
- const uint64_t block_size = 10;
- const uint32_t blocks_per_file = 20;
- Random random(5);
-
- BlobStore blob_store(test::TmpDir() + "/blob_store_test",
- block_size,
- blocks_per_file,
- 1000,
- Env::Default());
-
- string buf;
-
- // put string of size 170
- test::RandomString(&random, 170, &buf);
- Blob r1;
- ASSERT_OK(blob_store.Put(Slice(buf), &r1));
- // use the first file
- for (size_t i = 0; i < r1.chunks.size(); ++i) {
- ASSERT_EQ(r1.chunks[0].bucket_id, 0u);
- }
-
- // put string of size 30
- test::RandomString(&random, 30, &buf);
- Blob r2;
- ASSERT_OK(blob_store.Put(Slice(buf), &r2));
- // use the first file
- for (size_t i = 0; i < r2.chunks.size(); ++i) {
- ASSERT_EQ(r2.chunks[0].bucket_id, 0u);
- }
-
- // delete blob of size 170
- ASSERT_OK(blob_store.Delete(r1));
-
- // put a string of size 100
- test::RandomString(&random, 100, &buf);
- Blob r3;
- ASSERT_OK(blob_store.Put(Slice(buf), &r3));
- // use the first file
- for (size_t i = 0; i < r3.chunks.size(); ++i) {
- ASSERT_EQ(r3.chunks[0].bucket_id, 0u);
- }
-
- // put a string of size 70
- test::RandomString(&random, 70, &buf);
- Blob r4;
- ASSERT_OK(blob_store.Put(Slice(buf), &r4));
- // use the first file
- for (size_t i = 0; i < r4.chunks.size(); ++i) {
- ASSERT_EQ(r4.chunks[0].bucket_id, 0u);
- }
-
- // put a string of size 5
- test::RandomString(&random, 5, &buf);
- Blob r5;
- ASSERT_OK(blob_store.Put(Slice(buf), &r5));
- // now you get to use the second file
- for (size_t i = 0; i < r5.chunks.size(); ++i) {
- ASSERT_EQ(r5.chunks[0].bucket_id, 1u);
- }
-}
-
-TEST(BlobStoreTest, FragmentedChunksTest) {
- const uint64_t block_size = 10;
- const uint32_t blocks_per_file = 20;
- Random random(5);
-
- BlobStore blob_store(test::TmpDir() + "/blob_store_test",
- block_size,
- blocks_per_file,
- 1000,
- Env::Default());
-
- string buf;
-
- vector <Blob> r(4);
-
- // put 4 strings of size 50
- for (int k = 0; k < 4; ++k) {
- test::RandomString(&random, 50, &buf);
- ASSERT_OK(blob_store.Put(Slice(buf), &r[k]));
- // use the first file
- for (size_t i = 0; i < r[k].chunks.size(); ++i) {
- ASSERT_EQ(r[k].chunks[0].bucket_id, 0u);
- }
- }
-
- // delete the first and third
- ASSERT_OK(blob_store.Delete(r[0]));
- ASSERT_OK(blob_store.Delete(r[2]));
-
- // put string of size 100. it should reuse space that we deleting
- // by deleting first and third strings of size 50
- test::RandomString(&random, 100, &buf);
- Blob r2;
- ASSERT_OK(blob_store.Put(Slice(buf), &r2));
- // use the first file
- for (size_t i = 0; i < r2.chunks.size(); ++i) {
- ASSERT_EQ(r2.chunks[0].bucket_id, 0u);
- }
-}
-
-TEST(BlobStoreTest, CreateAndStoreTest) {
- const uint64_t block_size = 10;
- const uint32_t blocks_per_file = 1000;
- const int max_blurb_size = 300;
- Random random(5);
-
- BlobStore blob_store(test::TmpDir() + "/blob_store_test",
- block_size,
- blocks_per_file,
- 10000,
- Env::Default());
- vector<pair<Blob, string>> ranges;
-
- for (int i = 0; i < 20000; ++i) {
- int decision = rand() % 5;
- if (decision <= 2 || ranges.size() == 0) {
- string buf;
- int size_blocks = (rand() % max_blurb_size + 1);
- int string_size = size_blocks * block_size - (rand() % block_size);
- test::RandomString(&random, string_size, &buf);
- Blob r;
- ASSERT_OK(blob_store.Put(Slice(buf), &r));
- ranges.push_back(make_pair(r, buf));
- } else if (decision == 3) {
- int ti = rand() % ranges.size();
- string out_buf;
- ASSERT_OK(blob_store.Get(ranges[ti].first, &out_buf));
- ASSERT_EQ(ranges[ti].second, out_buf);
- } else {
- int ti = rand() % ranges.size();
- ASSERT_OK(blob_store.Delete(ranges[ti].first));
- ranges.erase(ranges.begin() + ti);
- }
- }
- ASSERT_OK(blob_store.Sync());
-}
-
-TEST(BlobStoreTest, MaxSizeTest) {
- const uint64_t block_size = 10;
- const uint32_t blocks_per_file = 100;
- const int max_buckets = 10;
- Random random(5);
-
- BlobStore blob_store(test::TmpDir() + "/blob_store_test",
- block_size,
- blocks_per_file,
- max_buckets,
- Env::Default());
- string buf;
- for (int i = 0; i < max_buckets; ++i) {
- test::RandomString(&random, 1000, &buf);
- Blob r;
- ASSERT_OK(blob_store.Put(Slice(buf), &r));
- }
-
- test::RandomString(&random, 1000, &buf);
- Blob r;
- // should fail because max size
- Status s = blob_store.Put(Slice(buf), &r);
- ASSERT_EQ(s.ok(), false);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/filter_policy.h"
-
-#include "rocksdb/slice.h"
-#include "util/hash.h"
-
-namespace rocksdb {
-
-namespace {
-static uint32_t BloomHash(const Slice& key) {
- return Hash(key.data(), key.size(), 0xbc9f1d34);
-}
-
-class BloomFilterPolicy : public FilterPolicy {
- private:
- size_t bits_per_key_;
- size_t k_;
- uint32_t (*hash_func_)(const Slice& key);
-
- void initialize() {
- // We intentionally round down to reduce probing cost a little bit
- k_ = static_cast<size_t>(bits_per_key_ * 0.69); // 0.69 =~ ln(2)
- if (k_ < 1) k_ = 1;
- if (k_ > 30) k_ = 30;
- }
-
- public:
- explicit BloomFilterPolicy(int bits_per_key,
- uint32_t (*hash_func)(const Slice& key))
- : bits_per_key_(bits_per_key), hash_func_(hash_func) {
- initialize();
- }
- explicit BloomFilterPolicy(int bits_per_key)
- : bits_per_key_(bits_per_key) {
- hash_func_ = BloomHash;
- initialize();
- }
-
- virtual const char* Name() const {
- return "rocksdb.BuiltinBloomFilter";
- }
-
- virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const {
- // Compute bloom filter size (in both bits and bytes)
- size_t bits = n * bits_per_key_;
-
- // For small n, we can see a very high false positive rate. Fix it
- // by enforcing a minimum bloom filter length.
- if (bits < 64) bits = 64;
-
- size_t bytes = (bits + 7) / 8;
- bits = bytes * 8;
-
- const size_t init_size = dst->size();
- dst->resize(init_size + bytes, 0);
- dst->push_back(static_cast<char>(k_)); // Remember # of probes in filter
- char* array = &(*dst)[init_size];
- for (size_t i = 0; i < (size_t)n; i++) {
- // Use double-hashing to generate a sequence of hash values.
- // See analysis in [Kirsch,Mitzenmacher 2006].
- uint32_t h = hash_func_(keys[i]);
- const uint32_t delta = (h >> 17) | (h << 15); // Rotate right 17 bits
- for (size_t j = 0; j < k_; j++) {
- const uint32_t bitpos = h % bits;
- array[bitpos/8] |= (1 << (bitpos % 8));
- h += delta;
- }
- }
- }
-
- virtual bool KeyMayMatch(const Slice& key, const Slice& bloom_filter) const {
- const size_t len = bloom_filter.size();
- if (len < 2) return false;
-
- const char* array = bloom_filter.data();
- const size_t bits = (len - 1) * 8;
-
- // Use the encoded k so that we can read filters generated by
- // bloom filters created using different parameters.
- const size_t k = array[len-1];
- if (k > 30) {
- // Reserved for potentially new encodings for short bloom filters.
- // Consider it a match.
- return true;
- }
-
- uint32_t h = hash_func_(key);
- const uint32_t delta = (h >> 17) | (h << 15); // Rotate right 17 bits
- for (size_t j = 0; j < k; j++) {
- const uint32_t bitpos = h % bits;
- if ((array[bitpos/8] & (1 << (bitpos % 8))) == 0) return false;
- h += delta;
- }
- return true;
- }
-};
-}
-
-const FilterPolicy* NewBloomFilterPolicy(int bits_per_key) {
- return new BloomFilterPolicy(bits_per_key);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/filter_policy.h"
-
-#include "util/logging.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-static const int kVerbose = 1;
-
-static Slice Key(int i, char* buffer) {
- memcpy(buffer, &i, sizeof(i));
- return Slice(buffer, sizeof(i));
-}
-
-class BloomTest {
- private:
- const FilterPolicy* policy_;
- std::string filter_;
- std::vector<std::string> keys_;
-
- public:
- BloomTest() : policy_(NewBloomFilterPolicy(10)) { }
-
- ~BloomTest() {
- delete policy_;
- }
-
- void Reset() {
- keys_.clear();
- filter_.clear();
- }
-
- void Add(const Slice& s) {
- keys_.push_back(s.ToString());
- }
-
- void Build() {
- std::vector<Slice> key_slices;
- for (size_t i = 0; i < keys_.size(); i++) {
- key_slices.push_back(Slice(keys_[i]));
- }
- filter_.clear();
- policy_->CreateFilter(&key_slices[0], key_slices.size(), &filter_);
- keys_.clear();
- if (kVerbose >= 2) DumpFilter();
- }
-
- size_t FilterSize() const {
- return filter_.size();
- }
-
- void DumpFilter() {
- fprintf(stderr, "F(");
- for (size_t i = 0; i+1 < filter_.size(); i++) {
- const unsigned int c = static_cast<unsigned int>(filter_[i]);
- for (int j = 0; j < 8; j++) {
- fprintf(stderr, "%c", (c & (1 <<j)) ? '1' : '.');
- }
- }
- fprintf(stderr, ")\n");
- }
-
- bool Matches(const Slice& s) {
- if (!keys_.empty()) {
- Build();
- }
- return policy_->KeyMayMatch(s, filter_);
- }
-
- double FalsePositiveRate() {
- char buffer[sizeof(int)];
- int result = 0;
- for (int i = 0; i < 10000; i++) {
- if (Matches(Key(i + 1000000000, buffer))) {
- result++;
- }
- }
- return result / 10000.0;
- }
-};
-
-TEST(BloomTest, EmptyFilter) {
- ASSERT_TRUE(! Matches("hello"));
- ASSERT_TRUE(! Matches("world"));
-}
-
-TEST(BloomTest, Small) {
- Add("hello");
- Add("world");
- ASSERT_TRUE(Matches("hello"));
- ASSERT_TRUE(Matches("world"));
- ASSERT_TRUE(! Matches("x"));
- ASSERT_TRUE(! Matches("foo"));
-}
-
-static int NextLength(int length) {
- if (length < 10) {
- length += 1;
- } else if (length < 100) {
- length += 10;
- } else if (length < 1000) {
- length += 100;
- } else {
- length += 1000;
- }
- return length;
-}
-
-TEST(BloomTest, VaryingLengths) {
- char buffer[sizeof(int)];
-
- // Count number of filters that significantly exceed the false positive rate
- int mediocre_filters = 0;
- int good_filters = 0;
-
- for (int length = 1; length <= 10000; length = NextLength(length)) {
- Reset();
- for (int i = 0; i < length; i++) {
- Add(Key(i, buffer));
- }
- Build();
-
- ASSERT_LE(FilterSize(), (size_t)((length * 10 / 8) + 40)) << length;
-
- // All added keys must match
- for (int i = 0; i < length; i++) {
- ASSERT_TRUE(Matches(Key(i, buffer)))
- << "Length " << length << "; key " << i;
- }
-
- // Check false positive rate
- double rate = FalsePositiveRate();
- if (kVerbose >= 1) {
- fprintf(stderr, "False positives: %5.2f%% @ length = %6d ; bytes = %6d\n",
- rate*100.0, length, static_cast<int>(FilterSize()));
- }
- ASSERT_LE(rate, 0.02); // Must not be over 2%
- if (rate > 0.0125) mediocre_filters++; // Allowed, but not too often
- else good_filters++;
- }
- if (kVerbose >= 1) {
- fprintf(stderr, "Filters: %d good, %d mediocre\n",
- good_filters, mediocre_filters);
- }
- ASSERT_LE(mediocre_filters, good_filters/5);
-}
-
-// Different bits-per-byte
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-// these variables tell us about the git config and time
-extern const char* rocksdb_build_git_sha;
-
-// these variables tell us when the compilation occured
-extern const char* rocksdb_build_compile_time;
-extern const char* rocksdb_build_compile_date;
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <list>
-
-#include "rocksdb/cache.h"
-#include "port/port.h"
-#include "util/hash.h"
-#include "util/mutexlock.h"
-
-namespace rocksdb {
-
-Cache::~Cache() {
-}
-
-namespace {
-
-// LRU cache implementation
-
-// An entry is a variable length heap-allocated structure. Entries
-// are kept in a circular doubly linked list ordered by access time.
-struct LRUHandle {
- void* value;
- void (*deleter)(const Slice&, void* value);
- LRUHandle* next_hash;
- LRUHandle* next;
- LRUHandle* prev;
- size_t charge; // TODO(opt): Only allow uint32_t?
- size_t key_length;
- uint32_t refs;
- uint32_t hash; // Hash of key(); used for fast sharding and comparisons
- char key_data[1]; // Beginning of key
-
- Slice key() const {
- // For cheaper lookups, we allow a temporary Handle object
- // to store a pointer to a key in "value".
- if (next == this) {
- return *(reinterpret_cast<Slice*>(value));
- } else {
- return Slice(key_data, key_length);
- }
- }
-};
-
-// We provide our own simple hash table since it removes a whole bunch
-// of porting hacks and is also faster than some of the built-in hash
-// table implementations in some of the compiler/runtime combinations
-// we have tested. E.g., readrandom speeds up by ~5% over the g++
-// 4.4.3's builtin hashtable.
-class HandleTable {
- public:
- HandleTable() : length_(0), elems_(0), list_(nullptr) { Resize(); }
- ~HandleTable() { delete[] list_; }
-
- LRUHandle* Lookup(const Slice& key, uint32_t hash) {
- return *FindPointer(key, hash);
- }
-
- LRUHandle* Insert(LRUHandle* h) {
- LRUHandle** ptr = FindPointer(h->key(), h->hash);
- LRUHandle* old = *ptr;
- h->next_hash = (old == nullptr ? nullptr : old->next_hash);
- *ptr = h;
- if (old == nullptr) {
- ++elems_;
- if (elems_ > length_) {
- // Since each cache entry is fairly large, we aim for a small
- // average linked list length (<= 1).
- Resize();
- }
- }
- return old;
- }
-
- LRUHandle* Remove(const Slice& key, uint32_t hash) {
- LRUHandle** ptr = FindPointer(key, hash);
- LRUHandle* result = *ptr;
- if (result != nullptr) {
- *ptr = result->next_hash;
- --elems_;
- }
- return result;
- }
-
- private:
- // The table consists of an array of buckets where each bucket is
- // a linked list of cache entries that hash into the bucket.
- uint32_t length_;
- uint32_t elems_;
- LRUHandle** list_;
-
- // Return a pointer to slot that points to a cache entry that
- // matches key/hash. If there is no such cache entry, return a
- // pointer to the trailing slot in the corresponding linked list.
- LRUHandle** FindPointer(const Slice& key, uint32_t hash) {
- LRUHandle** ptr = &list_[hash & (length_ - 1)];
- while (*ptr != nullptr &&
- ((*ptr)->hash != hash || key != (*ptr)->key())) {
- ptr = &(*ptr)->next_hash;
- }
- return ptr;
- }
-
- void Resize() {
- uint32_t new_length = 4;
- while (new_length < elems_) {
- new_length *= 2;
- }
- LRUHandle** new_list = new LRUHandle*[new_length];
- memset(new_list, 0, sizeof(new_list[0]) * new_length);
- uint32_t count = 0;
- for (uint32_t i = 0; i < length_; i++) {
- LRUHandle* h = list_[i];
- while (h != nullptr) {
- LRUHandle* next = h->next_hash;
- uint32_t hash = h->hash;
- LRUHandle** ptr = &new_list[hash & (new_length - 1)];
- h->next_hash = *ptr;
- *ptr = h;
- h = next;
- count++;
- }
- }
- assert(elems_ == count);
- delete[] list_;
- list_ = new_list;
- length_ = new_length;
- }
-};
-
-// A single shard of sharded cache.
-class LRUCache {
- public:
- LRUCache();
- ~LRUCache();
-
- // Separate from constructor so caller can easily make an array of LRUCache
- void SetCapacity(size_t capacity) { capacity_ = capacity; }
- void SetRemoveScanCountLimit(size_t remove_scan_count_limit) {
- remove_scan_count_limit_ = remove_scan_count_limit;
- }
-
- // Like Cache methods, but with an extra "hash" parameter.
- Cache::Handle* Insert(const Slice& key, uint32_t hash,
- void* value, size_t charge,
- void (*deleter)(const Slice& key, void* value));
- Cache::Handle* Lookup(const Slice& key, uint32_t hash);
- void Release(Cache::Handle* handle);
- void Erase(const Slice& key, uint32_t hash);
-
- private:
- void LRU_Remove(LRUHandle* e);
- void LRU_Append(LRUHandle* e);
- // Just reduce the reference count by 1.
- // Return true if last reference
- bool Unref(LRUHandle* e);
- // Call deleter and free
- void FreeEntry(LRUHandle* e);
-
- // Initialized before use.
- size_t capacity_;
- uint32_t remove_scan_count_limit_;
-
- // mutex_ protects the following state.
- port::Mutex mutex_;
- size_t usage_;
-
- // Dummy head of LRU list.
- // lru.prev is newest entry, lru.next is oldest entry.
- LRUHandle lru_;
-
- HandleTable table_;
-};
-
-LRUCache::LRUCache()
- : usage_(0) {
- // Make empty circular linked list
- lru_.next = &lru_;
- lru_.prev = &lru_;
-}
-
-LRUCache::~LRUCache() {
- for (LRUHandle* e = lru_.next; e != &lru_; ) {
- LRUHandle* next = e->next;
- assert(e->refs == 1); // Error if caller has an unreleased handle
- if (Unref(e)) {
- FreeEntry(e);
- }
- e = next;
- }
-}
-
-bool LRUCache::Unref(LRUHandle* e) {
- assert(e->refs > 0);
- e->refs--;
- return e->refs == 0;
-}
-
-void LRUCache::FreeEntry(LRUHandle* e) {
- assert(e->refs == 0);
- (*e->deleter)(e->key(), e->value);
- free(e);
-}
-
-void LRUCache::LRU_Remove(LRUHandle* e) {
- e->next->prev = e->prev;
- e->prev->next = e->next;
- usage_ -= e->charge;
-}
-
-void LRUCache::LRU_Append(LRUHandle* e) {
- // Make "e" newest entry by inserting just before lru_
- e->next = &lru_;
- e->prev = lru_.prev;
- e->prev->next = e;
- e->next->prev = e;
- usage_ += e->charge;
-}
-
-Cache::Handle* LRUCache::Lookup(const Slice& key, uint32_t hash) {
- MutexLock l(&mutex_);
- LRUHandle* e = table_.Lookup(key, hash);
- if (e != nullptr) {
- e->refs++;
- LRU_Remove(e);
- LRU_Append(e);
- }
- return reinterpret_cast<Cache::Handle*>(e);
-}
-
-void LRUCache::Release(Cache::Handle* handle) {
- LRUHandle* e = reinterpret_cast<LRUHandle*>(handle);
- bool last_reference = false;
- {
- MutexLock l(&mutex_);
- last_reference = Unref(e);
- }
- if (last_reference) {
- FreeEntry(e);
- }
-}
-
-Cache::Handle* LRUCache::Insert(
- const Slice& key, uint32_t hash, void* value, size_t charge,
- void (*deleter)(const Slice& key, void* value)) {
-
- LRUHandle* e = reinterpret_cast<LRUHandle*>(
- malloc(sizeof(LRUHandle)-1 + key.size()));
- std::list<LRUHandle*> last_reference_list;
-
- {
- MutexLock l(&mutex_);
-
- e->value = value;
- e->deleter = deleter;
- e->charge = charge;
- e->key_length = key.size();
- e->hash = hash;
- e->refs = 2; // One from LRUCache, one for the returned handle
- memcpy(e->key_data, key.data(), key.size());
- LRU_Append(e);
-
- LRUHandle* old = table_.Insert(e);
- if (old != nullptr) {
- LRU_Remove(old);
- if (Unref(old)) {
- last_reference_list.push_back(old);
- }
- }
-
- if (remove_scan_count_limit_ > 0) {
- // Try to free the space by evicting the entries that are only
- // referenced by the cache first.
- LRUHandle* cur = lru_.next;
- for (unsigned int scanCount = 0;
- usage_ > capacity_ && cur != &lru_
- && scanCount < remove_scan_count_limit_; scanCount++) {
- LRUHandle* next = cur->next;
- if (cur->refs <= 1) {
- LRU_Remove(cur);
- table_.Remove(cur->key(), cur->hash);
- if (Unref(cur)) {
- last_reference_list.push_back(cur);
- }
- }
- cur = next;
- }
- }
-
- // Free the space following strict LRU policy until enough space
- // is freed.
- while (usage_ > capacity_ && lru_.next != &lru_) {
- LRUHandle* old = lru_.next;
- LRU_Remove(old);
- table_.Remove(old->key(), old->hash);
- if (Unref(old)) {
- last_reference_list.push_back(old);
- }
- }
- }
-
- // we free the entries here outside of mutex for
- // performance reasons
- for (auto entry : last_reference_list) {
- FreeEntry(entry);
- }
-
- return reinterpret_cast<Cache::Handle*>(e);
-}
-
-void LRUCache::Erase(const Slice& key, uint32_t hash) {
- LRUHandle* e;
- bool last_reference = false;
- {
- MutexLock l(&mutex_);
- e = table_.Remove(key, hash);
- if (e != nullptr) {
- LRU_Remove(e);
- last_reference = Unref(e);
- }
- }
- // mutex not held here
- // last_reference will only be true if e != nullptr
- if (last_reference) {
- FreeEntry(e);
- }
-}
-
-static int kNumShardBits = 4; // default values, can be overridden
-static int kRemoveScanCountLimit = 0; // default values, can be overridden
-
-class ShardedLRUCache : public Cache {
- private:
- LRUCache* shard_;
- port::Mutex id_mutex_;
- uint64_t last_id_;
- int numShardBits;
- size_t capacity_;
-
- static inline uint32_t HashSlice(const Slice& s) {
- return Hash(s.data(), s.size(), 0);
- }
-
- uint32_t Shard(uint32_t hash) {
- // Note, hash >> 32 yields hash in gcc, not the zero we expect!
- return (numShardBits > 0) ? (hash >> (32 - numShardBits)) : 0;
- }
-
- void init(size_t capacity, int numbits, int removeScanCountLimit) {
- numShardBits = numbits;
- capacity_ = capacity;
- int numShards = 1 << numShardBits;
- shard_ = new LRUCache[numShards];
- const size_t per_shard = (capacity + (numShards - 1)) / numShards;
- for (int s = 0; s < numShards; s++) {
- shard_[s].SetCapacity(per_shard);
- shard_[s].SetRemoveScanCountLimit(removeScanCountLimit);
- }
- }
-
- public:
- explicit ShardedLRUCache(size_t capacity)
- : last_id_(0) {
- init(capacity, kNumShardBits, kRemoveScanCountLimit);
- }
- ShardedLRUCache(size_t capacity, int numShardBits,
- int removeScanCountLimit)
- : last_id_(0) {
- init(capacity, numShardBits, removeScanCountLimit);
- }
- virtual ~ShardedLRUCache() {
- delete[] shard_;
- }
- virtual Handle* Insert(const Slice& key, void* value, size_t charge,
- void (*deleter)(const Slice& key, void* value)) {
- const uint32_t hash = HashSlice(key);
- return shard_[Shard(hash)].Insert(key, hash, value, charge, deleter);
- }
- virtual Handle* Lookup(const Slice& key) {
- const uint32_t hash = HashSlice(key);
- return shard_[Shard(hash)].Lookup(key, hash);
- }
- virtual void Release(Handle* handle) {
- LRUHandle* h = reinterpret_cast<LRUHandle*>(handle);
- shard_[Shard(h->hash)].Release(handle);
- }
- virtual void Erase(const Slice& key) {
- const uint32_t hash = HashSlice(key);
- shard_[Shard(hash)].Erase(key, hash);
- }
- virtual void* Value(Handle* handle) {
- return reinterpret_cast<LRUHandle*>(handle)->value;
- }
- virtual uint64_t NewId() {
- MutexLock l(&id_mutex_);
- return ++(last_id_);
- }
- virtual size_t GetCapacity() {
- return capacity_;
- }
-};
-
-} // end anonymous namespace
-
-shared_ptr<Cache> NewLRUCache(size_t capacity) {
- return NewLRUCache(capacity, kNumShardBits);
-}
-
-shared_ptr<Cache> NewLRUCache(size_t capacity, int numShardBits) {
- return NewLRUCache(capacity, numShardBits, kRemoveScanCountLimit);
-}
-
-shared_ptr<Cache> NewLRUCache(size_t capacity, int numShardBits,
- int removeScanCountLimit) {
- if (numShardBits >= 20) {
- return nullptr; // the cache cannot be sharded into too many fine pieces
- }
- return std::make_shared<ShardedLRUCache>(capacity,
- numShardBits,
- removeScanCountLimit);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/cache.h"
-
-#include <vector>
-#include <string>
-#include <iostream>
-#include "util/coding.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-// Conversions between numeric keys/values and the types expected by Cache.
-static std::string EncodeKey(int k) {
- std::string result;
- PutFixed32(&result, k);
- return result;
-}
-static int DecodeKey(const Slice& k) {
- assert(k.size() == 4);
- return DecodeFixed32(k.data());
-}
-static void* EncodeValue(uintptr_t v) { return reinterpret_cast<void*>(v); }
-static int DecodeValue(void* v) { return reinterpret_cast<uintptr_t>(v); }
-
-class CacheTest {
- public:
- static CacheTest* current_;
-
- static void Deleter(const Slice& key, void* v) {
- current_->deleted_keys_.push_back(DecodeKey(key));
- current_->deleted_values_.push_back(DecodeValue(v));
- }
-
- static const int kCacheSize = 1000;
- static const int kNumShardBits = 4;
- static const int kRemoveScanCountLimit = 16;
-
- static const int kCacheSize2 = 100;
- static const int kNumShardBits2 = 2;
- static const int kRemoveScanCountLimit2 = 200;
-
- std::vector<int> deleted_keys_;
- std::vector<int> deleted_values_;
- shared_ptr<Cache> cache_;
- shared_ptr<Cache> cache2_;
-
- CacheTest() :
- cache_(NewLRUCache(kCacheSize, kNumShardBits, kRemoveScanCountLimit)),
- cache2_(NewLRUCache(kCacheSize2, kNumShardBits2,
- kRemoveScanCountLimit2)) {
- current_ = this;
- }
-
- ~CacheTest() {
- }
-
- int Lookup(shared_ptr<Cache> cache, int key) {
- Cache::Handle* handle = cache->Lookup(EncodeKey(key));
- const int r = (handle == nullptr) ? -1 : DecodeValue(cache->Value(handle));
- if (handle != nullptr) {
- cache->Release(handle);
- }
- return r;
- }
-
- void Insert(shared_ptr<Cache> cache, int key, int value, int charge = 1) {
- cache->Release(cache->Insert(EncodeKey(key), EncodeValue(value), charge,
- &CacheTest::Deleter));
- }
-
- void Erase(shared_ptr<Cache> cache, int key) {
- cache->Erase(EncodeKey(key));
- }
-
-
- int Lookup(int key) {
- return Lookup(cache_, key);
- }
-
- void Insert(int key, int value, int charge = 1) {
- Insert(cache_, key, value, charge);
- }
-
- void Erase(int key) {
- Erase(cache_, key);
- }
-
- int Lookup2(int key) {
- return Lookup(cache2_, key);
- }
-
- void Insert2(int key, int value, int charge = 1) {
- Insert(cache2_, key, value, charge);
- }
-
- void Erase2(int key) {
- Erase(cache2_, key);
- }
-};
-CacheTest* CacheTest::current_;
-
-TEST(CacheTest, HitAndMiss) {
- ASSERT_EQ(-1, Lookup(100));
-
- Insert(100, 101);
- ASSERT_EQ(101, Lookup(100));
- ASSERT_EQ(-1, Lookup(200));
- ASSERT_EQ(-1, Lookup(300));
-
- Insert(200, 201);
- ASSERT_EQ(101, Lookup(100));
- ASSERT_EQ(201, Lookup(200));
- ASSERT_EQ(-1, Lookup(300));
-
- Insert(100, 102);
- ASSERT_EQ(102, Lookup(100));
- ASSERT_EQ(201, Lookup(200));
- ASSERT_EQ(-1, Lookup(300));
-
- ASSERT_EQ(1U, deleted_keys_.size());
- ASSERT_EQ(100, deleted_keys_[0]);
- ASSERT_EQ(101, deleted_values_[0]);
-}
-
-TEST(CacheTest, Erase) {
- Erase(200);
- ASSERT_EQ(0U, deleted_keys_.size());
-
- Insert(100, 101);
- Insert(200, 201);
- Erase(100);
- ASSERT_EQ(-1, Lookup(100));
- ASSERT_EQ(201, Lookup(200));
- ASSERT_EQ(1U, deleted_keys_.size());
- ASSERT_EQ(100, deleted_keys_[0]);
- ASSERT_EQ(101, deleted_values_[0]);
-
- Erase(100);
- ASSERT_EQ(-1, Lookup(100));
- ASSERT_EQ(201, Lookup(200));
- ASSERT_EQ(1U, deleted_keys_.size());
-}
-
-TEST(CacheTest, EntriesArePinned) {
- Insert(100, 101);
- Cache::Handle* h1 = cache_->Lookup(EncodeKey(100));
- ASSERT_EQ(101, DecodeValue(cache_->Value(h1)));
-
- Insert(100, 102);
- Cache::Handle* h2 = cache_->Lookup(EncodeKey(100));
- ASSERT_EQ(102, DecodeValue(cache_->Value(h2)));
- ASSERT_EQ(0U, deleted_keys_.size());
-
- cache_->Release(h1);
- ASSERT_EQ(1U, deleted_keys_.size());
- ASSERT_EQ(100, deleted_keys_[0]);
- ASSERT_EQ(101, deleted_values_[0]);
-
- Erase(100);
- ASSERT_EQ(-1, Lookup(100));
- ASSERT_EQ(1U, deleted_keys_.size());
-
- cache_->Release(h2);
- ASSERT_EQ(2U, deleted_keys_.size());
- ASSERT_EQ(100, deleted_keys_[1]);
- ASSERT_EQ(102, deleted_values_[1]);
-}
-
-TEST(CacheTest, EvictionPolicy) {
- Insert(100, 101);
- Insert(200, 201);
-
- // Frequently used entry must be kept around
- for (int i = 0; i < kCacheSize + 100; i++) {
- Insert(1000+i, 2000+i);
- ASSERT_EQ(2000+i, Lookup(1000+i));
- ASSERT_EQ(101, Lookup(100));
- }
- ASSERT_EQ(101, Lookup(100));
- ASSERT_EQ(-1, Lookup(200));
-}
-
-TEST(CacheTest, EvictionPolicyRef) {
- Insert(100, 101);
- Insert(101, 102);
- Insert(102, 103);
- Insert(103, 104);
- Insert(200, 101);
- Insert(201, 102);
- Insert(202, 103);
- Insert(203, 104);
- Cache::Handle* h201 = cache_->Lookup(EncodeKey(200));
- Cache::Handle* h202 = cache_->Lookup(EncodeKey(201));
- Cache::Handle* h203 = cache_->Lookup(EncodeKey(202));
- Cache::Handle* h204 = cache_->Lookup(EncodeKey(203));
- Insert(300, 101);
- Insert(301, 102);
- Insert(302, 103);
- Insert(303, 104);
-
- // Insert entries much more than Cache capacity
- for (int i = 0; i < kCacheSize + 100; i++) {
- Insert(1000 + i, 2000 + i);
- }
-
- // Check whether the entries inserted in the beginning
- // are evicted. Ones without extra ref are evicted and
- // those with are not.
- ASSERT_EQ(-1, Lookup(100));
- ASSERT_EQ(-1, Lookup(101));
- ASSERT_EQ(-1, Lookup(102));
- ASSERT_EQ(-1, Lookup(103));
-
- ASSERT_EQ(-1, Lookup(300));
- ASSERT_EQ(-1, Lookup(301));
- ASSERT_EQ(-1, Lookup(302));
- ASSERT_EQ(-1, Lookup(303));
-
- ASSERT_EQ(101, Lookup(200));
- ASSERT_EQ(102, Lookup(201));
- ASSERT_EQ(103, Lookup(202));
- ASSERT_EQ(104, Lookup(203));
-
- // Cleaning up all the handles
- cache_->Release(h201);
- cache_->Release(h202);
- cache_->Release(h203);
- cache_->Release(h204);
-}
-
-TEST(CacheTest, EvictionPolicyRef2) {
- std::vector<Cache::Handle*> handles;
-
- Insert(100, 101);
- // Insert entries much more than Cache capacity
- for (int i = 0; i < kCacheSize + 100; i++) {
- Insert(1000 + i, 2000 + i);
- if (i < kCacheSize ) {
- handles.push_back(cache_->Lookup(EncodeKey(1000 + i)));
- }
- }
-
- // Make sure referenced keys are also possible to be deleted
- // if there are not sufficient non-referenced keys
- for (int i = 0; i < 5; i++) {
- ASSERT_EQ(-1, Lookup(1000 + i));
- }
-
- for (int i = kCacheSize; i < kCacheSize + 100; i++) {
- ASSERT_EQ(2000 + i, Lookup(1000 + i));
- }
- ASSERT_EQ(-1, Lookup(100));
-
- // Cleaning up all the handles
- while (handles.size() > 0) {
- cache_->Release(handles.back());
- handles.pop_back();
- }
-}
-
-TEST(CacheTest, EvictionPolicyRefLargeScanLimit) {
- std::vector<Cache::Handle*> handles2;
-
- // Cache2 has a cache RemoveScanCountLimit higher than cache size
- // so it would trigger a boundary condition.
-
- // Populate the cache with 10 more keys than its size.
- // Reference all keys except one close to the end.
- for (int i = 0; i < kCacheSize2 + 10; i++) {
- Insert2(1000 + i, 2000+i);
- if (i != kCacheSize2 ) {
- handles2.push_back(cache2_->Lookup(EncodeKey(1000 + i)));
- }
- }
-
- // Make sure referenced keys are also possible to be deleted
- // if there are not sufficient non-referenced keys
- for (int i = 0; i < 3; i++) {
- ASSERT_EQ(-1, Lookup2(1000 + i));
- }
- // The non-referenced value is deleted even if it's accessed
- // recently.
- ASSERT_EQ(-1, Lookup2(1000 + kCacheSize2));
- // Other values recently accessed are not deleted since they
- // are referenced.
- for (int i = kCacheSize2 - 10; i < kCacheSize2 + 10; i++) {
- if (i != kCacheSize2) {
- ASSERT_EQ(2000 + i, Lookup2(1000 + i));
- }
- }
-
- // Cleaning up all the handles
- while (handles2.size() > 0) {
- cache2_->Release(handles2.back());
- handles2.pop_back();
- }
-}
-
-
-
-TEST(CacheTest, HeavyEntries) {
- // Add a bunch of light and heavy entries and then count the combined
- // size of items still in the cache, which must be approximately the
- // same as the total capacity.
- const int kLight = 1;
- const int kHeavy = 10;
- int added = 0;
- int index = 0;
- while (added < 2*kCacheSize) {
- const int weight = (index & 1) ? kLight : kHeavy;
- Insert(index, 1000+index, weight);
- added += weight;
- index++;
- }
-
- int cached_weight = 0;
- for (int i = 0; i < index; i++) {
- const int weight = (i & 1 ? kLight : kHeavy);
- int r = Lookup(i);
- if (r >= 0) {
- cached_weight += weight;
- ASSERT_EQ(1000+i, r);
- }
- }
- ASSERT_LE(cached_weight, kCacheSize + kCacheSize/10);
-}
-
-TEST(CacheTest, NewId) {
- uint64_t a = cache_->NewId();
- uint64_t b = cache_->NewId();
- ASSERT_NE(a, b);
-}
-
-
-class Value {
- private:
- int v_;
- public:
- explicit Value(int v) : v_(v) { }
-
- ~Value() { std::cout << v_ << " is destructed\n"; }
-};
-
-void deleter(const Slice& key, void* value) {
- delete (Value *)value;
-}
-
-
-TEST(CacheTest, BadEviction) {
- int n = 10;
-
- // a LRUCache with n entries and one shard only
- std::shared_ptr<Cache> cache = NewLRUCache(n, 0);
-
- std::vector<Cache::Handle*> handles(n+1);
-
- // Insert n+1 entries, but not releasing.
- for (int i = 0; i < n+1; i++) {
- std::string key = std::to_string(i+1);
- handles[i] = cache->Insert(key, new Value(i+1), 1, &deleter);
- }
-
- // Guess what's in the cache now?
- for (int i = 0; i < n+1; i++) {
- std::string key = std::to_string(i+1);
- auto h = cache->Lookup(key);
- std::cout << key << (h?" found\n":" not found\n");
- // Only the first entry should be missing
- ASSERT_TRUE(h || i == 0);
- if (h) cache->Release(h);
- }
-
- for (int i = 0; i < n+1; i++) {
- cache->Release(handles[i]);
- }
- std::cout << "Poor entries\n";
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/coding.h"
-
-#include <algorithm>
-
-namespace rocksdb {
-
-void EncodeFixed32(char* buf, uint32_t value) {
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- memcpy(buf, &value, sizeof(value));
-#else
- buf[0] = value & 0xff;
- buf[1] = (value >> 8) & 0xff;
- buf[2] = (value >> 16) & 0xff;
- buf[3] = (value >> 24) & 0xff;
-#endif
-}
-
-void EncodeFixed64(char* buf, uint64_t value) {
-#if __BYTE_ORDER == __LITTLE_ENDIAN
- memcpy(buf, &value, sizeof(value));
-#else
- buf[0] = value & 0xff;
- buf[1] = (value >> 8) & 0xff;
- buf[2] = (value >> 16) & 0xff;
- buf[3] = (value >> 24) & 0xff;
- buf[4] = (value >> 32) & 0xff;
- buf[5] = (value >> 40) & 0xff;
- buf[6] = (value >> 48) & 0xff;
- buf[7] = (value >> 56) & 0xff;
-#endif
-}
-
-void PutFixed32(std::string* dst, uint32_t value) {
- char buf[sizeof(value)];
- EncodeFixed32(buf, value);
- dst->append(buf, sizeof(buf));
-}
-
-void PutFixed64(std::string* dst, uint64_t value) {
- char buf[sizeof(value)];
- EncodeFixed64(buf, value);
- dst->append(buf, sizeof(buf));
-}
-
-char* EncodeVarint32(char* dst, uint32_t v) {
- // Operate on characters as unsigneds
- unsigned char* ptr = reinterpret_cast<unsigned char*>(dst);
- static const int B = 128;
- if (v < (1<<7)) {
- *(ptr++) = v;
- } else if (v < (1<<14)) {
- *(ptr++) = v | B;
- *(ptr++) = v>>7;
- } else if (v < (1<<21)) {
- *(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = v>>14;
- } else if (v < (1<<28)) {
- *(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = (v>>14) | B;
- *(ptr++) = v>>21;
- } else {
- *(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = (v>>14) | B;
- *(ptr++) = (v>>21) | B;
- *(ptr++) = v>>28;
- }
- return reinterpret_cast<char*>(ptr);
-}
-
-void PutVarint32(std::string* dst, uint32_t v) {
- char buf[5];
- char* ptr = EncodeVarint32(buf, v);
- dst->append(buf, ptr - buf);
-}
-
-char* EncodeVarint64(char* dst, uint64_t v) {
- static const unsigned int B = 128;
- unsigned char* ptr = reinterpret_cast<unsigned char*>(dst);
- while (v >= B) {
- *(ptr++) = (v & (B-1)) | B;
- v >>= 7;
- }
- *(ptr++) = static_cast<unsigned char>(v);
- return reinterpret_cast<char*>(ptr);
-}
-
-void PutVarint64(std::string* dst, uint64_t v) {
- char buf[10];
- char* ptr = EncodeVarint64(buf, v);
- dst->append(buf, ptr - buf);
-}
-
-void PutLengthPrefixedSlice(std::string* dst, const Slice& value) {
- PutVarint32(dst, value.size());
- dst->append(value.data(), value.size());
-}
-
-void PutLengthPrefixedSliceParts(std::string* dst,
- const SliceParts& slice_parts) {
- uint32_t total_bytes = 0;
- for (int i = 0; i < slice_parts.num_parts; ++i) {
- total_bytes += slice_parts.parts[i].size();
- }
- PutVarint32(dst, total_bytes);
- for (int i = 0; i < slice_parts.num_parts; ++i) {
- dst->append(slice_parts.parts[i].data(), slice_parts.parts[i].size());
- }
-}
-
-int VarintLength(uint64_t v) {
- int len = 1;
- while (v >= 128) {
- v >>= 7;
- len++;
- }
- return len;
-}
-
-const char* GetVarint32PtrFallback(const char* p,
- const char* limit,
- uint32_t* value) {
- uint32_t result = 0;
- for (uint32_t shift = 0; shift <= 28 && p < limit; shift += 7) {
- uint32_t byte = *(reinterpret_cast<const unsigned char*>(p));
- p++;
- if (byte & 128) {
- // More bytes are present
- result |= ((byte & 127) << shift);
- } else {
- result |= (byte << shift);
- *value = result;
- return reinterpret_cast<const char*>(p);
- }
- }
- return nullptr;
-}
-
-bool GetVarint32(Slice* input, uint32_t* value) {
- const char* p = input->data();
- const char* limit = p + input->size();
- const char* q = GetVarint32Ptr(p, limit, value);
- if (q == nullptr) {
- return false;
- } else {
- *input = Slice(q, limit - q);
- return true;
- }
-}
-
-const char* GetVarint64Ptr(const char* p, const char* limit, uint64_t* value) {
- uint64_t result = 0;
- for (uint32_t shift = 0; shift <= 63 && p < limit; shift += 7) {
- uint64_t byte = *(reinterpret_cast<const unsigned char*>(p));
- p++;
- if (byte & 128) {
- // More bytes are present
- result |= ((byte & 127) << shift);
- } else {
- result |= (byte << shift);
- *value = result;
- return reinterpret_cast<const char*>(p);
- }
- }
- return nullptr;
-}
-
-bool GetVarint64(Slice* input, uint64_t* value) {
- const char* p = input->data();
- const char* limit = p + input->size();
- const char* q = GetVarint64Ptr(p, limit, value);
- if (q == nullptr) {
- return false;
- } else {
- *input = Slice(q, limit - q);
- return true;
- }
-}
-
-const char* GetLengthPrefixedSlice(const char* p, const char* limit,
- Slice* result) {
- uint32_t len;
- p = GetVarint32Ptr(p, limit, &len);
- if (p == nullptr) return nullptr;
- if (p + len > limit) return nullptr;
- *result = Slice(p, len);
- return p + len;
-}
-
-bool GetLengthPrefixedSlice(Slice* input, Slice* result) {
- uint32_t len;
- if (GetVarint32(input, &len) &&
- input->size() >= len) {
- *result = Slice(input->data(), len);
- input->remove_prefix(len);
- return true;
- } else {
- return false;
- }
-}
-
-Slice GetLengthPrefixedSlice(const char* data) {
- uint32_t len;
- const char* p = data;
- p = GetVarint32Ptr(p, p + 5, &len); // +5: we assume "p" is not corrupted
- return Slice(p, len);
-}
-
-void BitStreamPutInt(char* dst, size_t dstlen, size_t offset,
- uint32_t bits, uint64_t value) {
- assert((offset + bits + 7)/8 <= dstlen);
- assert(bits <= 64);
-
- unsigned char* ptr = reinterpret_cast<unsigned char*>(dst);
-
- size_t byteOffset = offset / 8;
- size_t bitOffset = offset % 8;
-
- // This prevents unused variable warnings when compiling.
-#ifndef NDEBUG
- // Store truncated value.
- uint64_t origValue = (bits < 64)?(value & (((uint64_t)1 << bits) - 1)):value;
- uint32_t origBits = bits;
-#endif
-
- while (bits > 0) {
- size_t bitsToGet = std::min<size_t>(bits, 8 - bitOffset);
- unsigned char mask = ((1 << bitsToGet) - 1);
-
- ptr[byteOffset] = (ptr[byteOffset] & ~(mask << bitOffset)) +
- ((value & mask) << bitOffset);
-
- value >>= bitsToGet;
- byteOffset += 1;
- bitOffset = 0;
- bits -= bitsToGet;
- }
-
- assert(origValue == BitStreamGetInt(dst, dstlen, offset, origBits));
-}
-
-uint64_t BitStreamGetInt(const char* src, size_t srclen, size_t offset,
- uint32_t bits) {
- assert((offset + bits + 7)/8 <= srclen);
- assert(bits <= 64);
-
- const unsigned char* ptr = reinterpret_cast<const unsigned char*>(src);
-
- uint64_t result = 0;
-
- size_t byteOffset = offset / 8;
- size_t bitOffset = offset % 8;
- size_t shift = 0;
-
- while (bits > 0) {
- size_t bitsToGet = std::min<size_t>(bits, 8 - bitOffset);
- unsigned char mask = ((1 << bitsToGet) - 1);
-
- result += (uint64_t)((ptr[byteOffset] >> bitOffset) & mask) << shift;
-
- shift += bitsToGet;
- byteOffset += 1;
- bitOffset = 0;
- bits -= bitsToGet;
- }
-
- return result;
-}
-
-void BitStreamPutInt(std::string* dst, size_t offset, uint32_t bits,
- uint64_t value) {
- assert((offset + bits + 7)/8 <= dst->size());
-
- const size_t kTmpBufLen = sizeof(value) + 1;
- char tmpBuf[kTmpBufLen];
-
- // Number of bytes of tmpBuf being used
- const size_t kUsedBytes = (offset%8 + bits)/8;
-
- // Copy relevant parts of dst to tmpBuf
- for (size_t idx = 0; idx <= kUsedBytes; ++idx) {
- tmpBuf[idx] = (*dst)[offset/8 + idx];
- }
-
- BitStreamPutInt(tmpBuf, kTmpBufLen, offset%8, bits, value);
-
- // Copy tmpBuf back to dst
- for (size_t idx = 0; idx <= kUsedBytes; ++idx) {
- (*dst)[offset/8 + idx] = tmpBuf[idx];
- }
-
- // Do the check here too as we are working with a buffer.
- assert(((bits < 64)?(value & (((uint64_t)1 << bits) - 1)):value) ==
- BitStreamGetInt(dst, offset, bits));
-}
-
-uint64_t BitStreamGetInt(const std::string* src, size_t offset,
- uint32_t bits) {
- return BitStreamGetInt(src->data(), src->size(), offset, bits);
-}
-
-uint64_t BitStreamGetInt(const Slice* src, size_t offset,
- uint32_t bits) {
- return BitStreamGetInt(src->data(), src->size(), offset, bits);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Endian-neutral encoding:
-// * Fixed-length numbers are encoded with least-significant byte first
-// * In addition we support variable length "varint" encoding
-// * Strings are encoded prefixed by their length in varint format
-
-#pragma once
-#include <stdint.h>
-#include <string.h>
-#include <string>
-#include "port/port.h"
-
-namespace rocksdb {
-
-// The maximum length of a varint in bytes for 32 and 64 bits respectively.
-const unsigned int kMaxVarint32Length = 5;
-const unsigned int kMaxVarint64Length = 10;
-
-// Standard Put... routines append to a string
-extern void PutFixed32(std::string* dst, uint32_t value);
-extern void PutFixed64(std::string* dst, uint64_t value);
-extern void PutVarint32(std::string* dst, uint32_t value);
-extern void PutVarint64(std::string* dst, uint64_t value);
-extern void PutLengthPrefixedSlice(std::string* dst, const Slice& value);
-extern void PutLengthPrefixedSliceParts(std::string* dst,
- const SliceParts& slice_parts);
-
-// Standard Get... routines parse a value from the beginning of a Slice
-// and advance the slice past the parsed value.
-extern bool GetVarint32(Slice* input, uint32_t* value);
-extern bool GetVarint64(Slice* input, uint64_t* value);
-extern bool GetLengthPrefixedSlice(Slice* input, Slice* result);
-extern Slice GetLengthPrefixedSlice(const char* data);
-
-// Pointer-based variants of GetVarint... These either store a value
-// in *v and return a pointer just past the parsed value, or return
-// nullptr on error. These routines only look at bytes in the range
-// [p..limit-1]
-extern const char* GetVarint32Ptr(const char* p,const char* limit, uint32_t* v);
-extern const char* GetVarint64Ptr(const char* p,const char* limit, uint64_t* v);
-
-// Returns the length of the varint32 or varint64 encoding of "v"
-extern int VarintLength(uint64_t v);
-
-// Lower-level versions of Put... that write directly into a character buffer
-// REQUIRES: dst has enough space for the value being written
-extern void EncodeFixed32(char* dst, uint32_t value);
-extern void EncodeFixed64(char* dst, uint64_t value);
-
-// Lower-level versions of Put... that write directly into a character buffer
-// and return a pointer just past the last byte written.
-// REQUIRES: dst has enough space for the value being written
-extern char* EncodeVarint32(char* dst, uint32_t value);
-extern char* EncodeVarint64(char* dst, uint64_t value);
-
-// Lower-level versions of Get... that read directly from a character buffer
-// without any bounds checking.
-
-inline uint32_t DecodeFixed32(const char* ptr) {
- if (port::kLittleEndian) {
- // Load the raw bytes
- uint32_t result;
- memcpy(&result, ptr, sizeof(result)); // gcc optimizes this to a plain load
- return result;
- } else {
- return ((static_cast<uint32_t>(static_cast<unsigned char>(ptr[0])))
- | (static_cast<uint32_t>(static_cast<unsigned char>(ptr[1])) << 8)
- | (static_cast<uint32_t>(static_cast<unsigned char>(ptr[2])) << 16)
- | (static_cast<uint32_t>(static_cast<unsigned char>(ptr[3])) << 24));
- }
-}
-
-inline uint64_t DecodeFixed64(const char* ptr) {
- if (port::kLittleEndian) {
- // Load the raw bytes
- uint64_t result;
- memcpy(&result, ptr, sizeof(result)); // gcc optimizes this to a plain load
- return result;
- } else {
- uint64_t lo = DecodeFixed32(ptr);
- uint64_t hi = DecodeFixed32(ptr + 4);
- return (hi << 32) | lo;
- }
-}
-
-// Internal routine for use by fallback path of GetVarint32Ptr
-extern const char* GetVarint32PtrFallback(const char* p,
- const char* limit,
- uint32_t* value);
-inline const char* GetVarint32Ptr(const char* p,
- const char* limit,
- uint32_t* value) {
- if (p < limit) {
- uint32_t result = *(reinterpret_cast<const unsigned char*>(p));
- if ((result & 128) == 0) {
- *value = result;
- return p + 1;
- }
- }
- return GetVarint32PtrFallback(p, limit, value);
-}
-
-// Writes an unsigned integer with bits number of bits with its least
-// significant bit at offset.
-// Bits are numbered from 0 to 7 in the first byte, 8 to 15 in the second and
-// so on.
-// value is truncated to the bits number of least significant bits.
-// REQUIRES: (offset+bits+7)/8 <= dstlen
-// REQUIRES: bits <= 64
-extern void BitStreamPutInt(char* dst, size_t dstlen, size_t offset,
- uint32_t bits, uint64_t value);
-
-// Reads an unsigned integer with bits number of bits with its least
-// significant bit at offset.
-// Bits are numbered in the same way as ByteStreamPutInt().
-// REQUIRES: (offset+bits+7)/8 <= srclen
-// REQUIRES: bits <= 64
-extern uint64_t BitStreamGetInt(const char* src, size_t srclen, size_t offset,
- uint32_t bits);
-
-// Convenience functions
-extern void BitStreamPutInt(std::string* dst, size_t offset, uint32_t bits,
- uint64_t value);
-extern uint64_t BitStreamGetInt(const std::string* src, size_t offset,
- uint32_t bits);
-extern uint64_t BitStreamGetInt(const Slice* src, size_t offset,
- uint32_t bits);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/coding.h"
-
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-class Coding { };
-
-TEST(Coding, Fixed32) {
- std::string s;
- for (uint32_t v = 0; v < 100000; v++) {
- PutFixed32(&s, v);
- }
-
- const char* p = s.data();
- for (uint32_t v = 0; v < 100000; v++) {
- uint32_t actual = DecodeFixed32(p);
- ASSERT_EQ(v, actual);
- p += sizeof(uint32_t);
- }
-}
-
-TEST(Coding, Fixed64) {
- std::string s;
- for (int power = 0; power <= 63; power++) {
- uint64_t v = static_cast<uint64_t>(1) << power;
- PutFixed64(&s, v - 1);
- PutFixed64(&s, v + 0);
- PutFixed64(&s, v + 1);
- }
-
- const char* p = s.data();
- for (int power = 0; power <= 63; power++) {
- uint64_t v = static_cast<uint64_t>(1) << power;
- uint64_t actual;
- actual = DecodeFixed64(p);
- ASSERT_EQ(v-1, actual);
- p += sizeof(uint64_t);
-
- actual = DecodeFixed64(p);
- ASSERT_EQ(v+0, actual);
- p += sizeof(uint64_t);
-
- actual = DecodeFixed64(p);
- ASSERT_EQ(v+1, actual);
- p += sizeof(uint64_t);
- }
-}
-
-// Test that encoding routines generate little-endian encodings
-TEST(Coding, EncodingOutput) {
- std::string dst;
- PutFixed32(&dst, 0x04030201);
- ASSERT_EQ(4U, dst.size());
- ASSERT_EQ(0x01, static_cast<int>(dst[0]));
- ASSERT_EQ(0x02, static_cast<int>(dst[1]));
- ASSERT_EQ(0x03, static_cast<int>(dst[2]));
- ASSERT_EQ(0x04, static_cast<int>(dst[3]));
-
- dst.clear();
- PutFixed64(&dst, 0x0807060504030201ull);
- ASSERT_EQ(8U, dst.size());
- ASSERT_EQ(0x01, static_cast<int>(dst[0]));
- ASSERT_EQ(0x02, static_cast<int>(dst[1]));
- ASSERT_EQ(0x03, static_cast<int>(dst[2]));
- ASSERT_EQ(0x04, static_cast<int>(dst[3]));
- ASSERT_EQ(0x05, static_cast<int>(dst[4]));
- ASSERT_EQ(0x06, static_cast<int>(dst[5]));
- ASSERT_EQ(0x07, static_cast<int>(dst[6]));
- ASSERT_EQ(0x08, static_cast<int>(dst[7]));
-}
-
-TEST(Coding, Varint32) {
- std::string s;
- for (uint32_t i = 0; i < (32 * 32); i++) {
- uint32_t v = (i / 32) << (i % 32);
- PutVarint32(&s, v);
- }
-
- const char* p = s.data();
- const char* limit = p + s.size();
- for (uint32_t i = 0; i < (32 * 32); i++) {
- uint32_t expected = (i / 32) << (i % 32);
- uint32_t actual;
- const char* start = p;
- p = GetVarint32Ptr(p, limit, &actual);
- ASSERT_TRUE(p != nullptr);
- ASSERT_EQ(expected, actual);
- ASSERT_EQ(VarintLength(actual), p - start);
- }
- ASSERT_EQ(p, s.data() + s.size());
-}
-
-TEST(Coding, Varint64) {
- // Construct the list of values to check
- std::vector<uint64_t> values;
- // Some special values
- values.push_back(0);
- values.push_back(100);
- values.push_back(~static_cast<uint64_t>(0));
- values.push_back(~static_cast<uint64_t>(0) - 1);
- for (uint32_t k = 0; k < 64; k++) {
- // Test values near powers of two
- const uint64_t power = 1ull << k;
- values.push_back(power);
- values.push_back(power-1);
- values.push_back(power+1);
- };
-
- std::string s;
- for (unsigned int i = 0; i < values.size(); i++) {
- PutVarint64(&s, values[i]);
- }
-
- const char* p = s.data();
- const char* limit = p + s.size();
- for (unsigned int i = 0; i < values.size(); i++) {
- ASSERT_TRUE(p < limit);
- uint64_t actual;
- const char* start = p;
- p = GetVarint64Ptr(p, limit, &actual);
- ASSERT_TRUE(p != nullptr);
- ASSERT_EQ(values[i], actual);
- ASSERT_EQ(VarintLength(actual), p - start);
- }
- ASSERT_EQ(p, limit);
-
-}
-
-TEST(Coding, Varint32Overflow) {
- uint32_t result;
- std::string input("\x81\x82\x83\x84\x85\x11");
- ASSERT_TRUE(GetVarint32Ptr(input.data(), input.data() + input.size(), &result)
- == nullptr);
-}
-
-TEST(Coding, Varint32Truncation) {
- uint32_t large_value = (1u << 31) + 100;
- std::string s;
- PutVarint32(&s, large_value);
- uint32_t result;
- for (unsigned int len = 0; len < s.size() - 1; len++) {
- ASSERT_TRUE(GetVarint32Ptr(s.data(), s.data() + len, &result) == nullptr);
- }
- ASSERT_TRUE(
- GetVarint32Ptr(s.data(), s.data() + s.size(), &result) != nullptr);
- ASSERT_EQ(large_value, result);
-}
-
-TEST(Coding, Varint64Overflow) {
- uint64_t result;
- std::string input("\x81\x82\x83\x84\x85\x81\x82\x83\x84\x85\x11");
- ASSERT_TRUE(GetVarint64Ptr(input.data(), input.data() + input.size(), &result)
- == nullptr);
-}
-
-TEST(Coding, Varint64Truncation) {
- uint64_t large_value = (1ull << 63) + 100ull;
- std::string s;
- PutVarint64(&s, large_value);
- uint64_t result;
- for (unsigned int len = 0; len < s.size() - 1; len++) {
- ASSERT_TRUE(GetVarint64Ptr(s.data(), s.data() + len, &result) == nullptr);
- }
- ASSERT_TRUE(
- GetVarint64Ptr(s.data(), s.data() + s.size(), &result) != nullptr);
- ASSERT_EQ(large_value, result);
-}
-
-TEST(Coding, Strings) {
- std::string s;
- PutLengthPrefixedSlice(&s, Slice(""));
- PutLengthPrefixedSlice(&s, Slice("foo"));
- PutLengthPrefixedSlice(&s, Slice("bar"));
- PutLengthPrefixedSlice(&s, Slice(std::string(200, 'x')));
-
- Slice input(s);
- Slice v;
- ASSERT_TRUE(GetLengthPrefixedSlice(&input, &v));
- ASSERT_EQ("", v.ToString());
- ASSERT_TRUE(GetLengthPrefixedSlice(&input, &v));
- ASSERT_EQ("foo", v.ToString());
- ASSERT_TRUE(GetLengthPrefixedSlice(&input, &v));
- ASSERT_EQ("bar", v.ToString());
- ASSERT_TRUE(GetLengthPrefixedSlice(&input, &v));
- ASSERT_EQ(std::string(200, 'x'), v.ToString());
- ASSERT_EQ("", input.ToString());
-}
-
-TEST(Coding, BitStream) {
- const int kNumBytes = 10;
- char bytes[kNumBytes+1];
- for (int i = 0; i < kNumBytes + 1; ++i) {
- bytes[i] = '\0';
- }
-
- // Simple byte aligned test.
- for (int i = 0; i < kNumBytes; ++i) {
- BitStreamPutInt(bytes, kNumBytes, i*8, 8, 255-i);
-
- ASSERT_EQ((unsigned char)bytes[i], (unsigned char)(255-i));
- }
- for (int i = 0; i < kNumBytes; ++i) {
- ASSERT_EQ(BitStreamGetInt(bytes, kNumBytes, i*8, 8), (uint32_t)(255-i));
- }
- ASSERT_EQ(bytes[kNumBytes], '\0');
-
- // Write and read back at strange offsets
- for (int i = 0; i < kNumBytes + 1; ++i) {
- bytes[i] = '\0';
- }
- for (int i = 0; i < kNumBytes; ++i) {
- BitStreamPutInt(bytes, kNumBytes, i*5+1, 4, (i * 7) % (1 << 4));
- }
- for (int i = 0; i < kNumBytes; ++i) {
- ASSERT_EQ(BitStreamGetInt(bytes, kNumBytes, i*5+1, 4),
- (uint32_t)((i * 7) % (1 << 4)));
- }
- ASSERT_EQ(bytes[kNumBytes], '\0');
-
- // Create 11011011 as a bit pattern
- for (int i = 0; i < kNumBytes + 1; ++i) {
- bytes[i] = '\0';
- }
- for (int i = 0; i < kNumBytes; ++i) {
- BitStreamPutInt(bytes, kNumBytes, i*8, 2, 3);
- BitStreamPutInt(bytes, kNumBytes, i*8+3, 2, 3);
- BitStreamPutInt(bytes, kNumBytes, i*8+6, 2, 3);
-
- ASSERT_EQ((unsigned char)bytes[i],
- (unsigned char)(3 + (3 << 3) + (3 << 6)));
- }
- ASSERT_EQ(bytes[kNumBytes], '\0');
-
-
- // Test large values
- for (int i = 0; i < kNumBytes + 1; ++i) {
- bytes[i] = '\0';
- }
- BitStreamPutInt(bytes, kNumBytes, 0, 64, (uint64_t)(-1));
- for (int i = 0; i < 64/8; ++i) {
- ASSERT_EQ((unsigned char)bytes[i],
- (unsigned char)(255));
- }
- ASSERT_EQ(bytes[64/8], '\0');
-
-
-}
-
-TEST(Coding, BitStreamConvenienceFuncs) {
- std::string bytes(1, '\0');
-
- // Check that independent changes to byte are preserved.
- BitStreamPutInt(&bytes, 0, 2, 3);
- BitStreamPutInt(&bytes, 3, 2, 3);
- BitStreamPutInt(&bytes, 6, 2, 3);
- ASSERT_EQ((unsigned char)bytes[0], (unsigned char)(3 + (3 << 3) + (3 << 6)));
- ASSERT_EQ(BitStreamGetInt(&bytes, 0, 2), 3u);
- ASSERT_EQ(BitStreamGetInt(&bytes, 3, 2), 3u);
- ASSERT_EQ(BitStreamGetInt(&bytes, 6, 2), 3u);
- Slice slice(bytes);
- ASSERT_EQ(BitStreamGetInt(&slice, 0, 2), 3u);
- ASSERT_EQ(BitStreamGetInt(&slice, 3, 2), 3u);
- ASSERT_EQ(BitStreamGetInt(&slice, 6, 2), 3u);
-
- // Test overlapping crossing over byte boundaries
- bytes = std::string(2, '\0');
- BitStreamPutInt(&bytes, 6, 4, 15);
- ASSERT_EQ((unsigned char)bytes[0], 3 << 6);
- ASSERT_EQ((unsigned char)bytes[1], 3);
- ASSERT_EQ(BitStreamGetInt(&bytes, 6, 4), 15u);
- slice = Slice(bytes);
- ASSERT_EQ(BitStreamGetInt(&slice, 6, 4), 15u);
-
- // Test 64-bit number
- bytes = std::string(64/8, '\0');
- BitStreamPutInt(&bytes, 0, 64, (uint64_t)(-1));
- ASSERT_EQ(BitStreamGetInt(&bytes, 0, 64), (uint64_t)(-1));
- slice = Slice(bytes);
- ASSERT_EQ(BitStreamGetInt(&slice, 0, 64), (uint64_t)(-1));
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <algorithm>
-#include <stdint.h>
-#include "rocksdb/comparator.h"
-#include "rocksdb/slice.h"
-#include "port/port.h"
-#include "util/logging.h"
-
-namespace rocksdb {
-
-Comparator::~Comparator() { }
-
-namespace {
-class BytewiseComparatorImpl : public Comparator {
- public:
- BytewiseComparatorImpl() { }
-
- virtual const char* Name() const {
- return "leveldb.BytewiseComparator";
- }
-
- virtual int Compare(const Slice& a, const Slice& b) const {
- return a.compare(b);
- }
-
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
- // Find length of common prefix
- size_t min_length = std::min(start->size(), limit.size());
- size_t diff_index = 0;
- while ((diff_index < min_length) &&
- ((*start)[diff_index] == limit[diff_index])) {
- diff_index++;
- }
-
- if (diff_index >= min_length) {
- // Do not shorten if one string is a prefix of the other
- } else {
- uint8_t diff_byte = static_cast<uint8_t>((*start)[diff_index]);
- if (diff_byte < static_cast<uint8_t>(0xff) &&
- diff_byte + 1 < static_cast<uint8_t>(limit[diff_index])) {
- (*start)[diff_index]++;
- start->resize(diff_index + 1);
- assert(Compare(*start, limit) < 0);
- }
- }
- }
-
- virtual void FindShortSuccessor(std::string* key) const {
- // Find first character that can be incremented
- size_t n = key->size();
- for (size_t i = 0; i < n; i++) {
- const uint8_t byte = (*key)[i];
- if (byte != static_cast<uint8_t>(0xff)) {
- (*key)[i] = byte + 1;
- key->resize(i+1);
- return;
- }
- }
- // *key is a run of 0xffs. Leave it alone.
- }
-};
-} // namespace
-
-static port::OnceType once = LEVELDB_ONCE_INIT;
-static const Comparator* bytewise;
-
-static void InitModule() {
- bytewise = new BytewiseComparatorImpl;
-}
-
-const Comparator* BytewiseComparator() {
- port::InitOnce(&once, InitModule);
- return bytewise;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// A portable implementation of crc32c, optimized to handle
-// four bytes at a time.
-
-#include "util/crc32c.h"
-
-#include <stdint.h>
-#ifdef __SSE4_2__
-#include <nmmintrin.h>
-#endif
-#include "util/coding.h"
-
-namespace rocksdb {
-namespace crc32c {
-
-static const uint32_t table0_[256] = {
- 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4,
- 0xc79a971f, 0x35f1141c, 0x26a1e7e8, 0xd4ca64eb,
- 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b,
- 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24,
- 0x105ec76f, 0xe235446c, 0xf165b798, 0x030e349b,
- 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384,
- 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54,
- 0x5d1d08bf, 0xaf768bbc, 0xbc267848, 0x4e4dfb4b,
- 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a,
- 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35,
- 0xaa64d611, 0x580f5512, 0x4b5fa6e6, 0xb93425e5,
- 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa,
- 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45,
- 0xf779deae, 0x05125dad, 0x1642ae59, 0xe4292d5a,
- 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a,
- 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595,
- 0x417b1dbc, 0xb3109ebf, 0xa0406d4b, 0x522bee48,
- 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957,
- 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687,
- 0x0c38d26c, 0xfe53516f, 0xed03a29b, 0x1f682198,
- 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927,
- 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38,
- 0xdbfc821c, 0x2997011f, 0x3ac7f2eb, 0xc8ac71e8,
- 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7,
- 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096,
- 0xa65c047d, 0x5437877e, 0x4767748a, 0xb50cf789,
- 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859,
- 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46,
- 0x7198540d, 0x83f3d70e, 0x90a324fa, 0x62c8a7f9,
- 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6,
- 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36,
- 0x3cdb9bdd, 0xceb018de, 0xdde0eb2a, 0x2f8b6829,
- 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c,
- 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93,
- 0x082f63b7, 0xfa44e0b4, 0xe9141340, 0x1b7f9043,
- 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c,
- 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3,
- 0x55326b08, 0xa759e80b, 0xb4091bff, 0x466298fc,
- 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c,
- 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033,
- 0xa24bb5a6, 0x502036a5, 0x4370c551, 0xb11b4652,
- 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d,
- 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d,
- 0xef087a76, 0x1d63f975, 0x0e330a81, 0xfc588982,
- 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d,
- 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622,
- 0x38cc2a06, 0xcaa7a905, 0xd9f75af1, 0x2b9cd9f2,
- 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed,
- 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530,
- 0x0417b1db, 0xf67c32d8, 0xe52cc12c, 0x1747422f,
- 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff,
- 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0,
- 0xd3d3e1ab, 0x21b862a8, 0x32e8915c, 0xc083125f,
- 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540,
- 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90,
- 0x9e902e7b, 0x6cfbad78, 0x7fab5e8c, 0x8dc0dd8f,
- 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee,
- 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1,
- 0x69e9f0d5, 0x9b8273d6, 0x88d28022, 0x7ab90321,
- 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e,
- 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81,
- 0x34f4f86a, 0xc69f7b69, 0xd5cf889d, 0x27a40b9e,
- 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e,
- 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351
-};
-static const uint32_t table1_[256] = {
- 0x00000000, 0x13a29877, 0x274530ee, 0x34e7a899,
- 0x4e8a61dc, 0x5d28f9ab, 0x69cf5132, 0x7a6dc945,
- 0x9d14c3b8, 0x8eb65bcf, 0xba51f356, 0xa9f36b21,
- 0xd39ea264, 0xc03c3a13, 0xf4db928a, 0xe7790afd,
- 0x3fc5f181, 0x2c6769f6, 0x1880c16f, 0x0b225918,
- 0x714f905d, 0x62ed082a, 0x560aa0b3, 0x45a838c4,
- 0xa2d13239, 0xb173aa4e, 0x859402d7, 0x96369aa0,
- 0xec5b53e5, 0xfff9cb92, 0xcb1e630b, 0xd8bcfb7c,
- 0x7f8be302, 0x6c297b75, 0x58ced3ec, 0x4b6c4b9b,
- 0x310182de, 0x22a31aa9, 0x1644b230, 0x05e62a47,
- 0xe29f20ba, 0xf13db8cd, 0xc5da1054, 0xd6788823,
- 0xac154166, 0xbfb7d911, 0x8b507188, 0x98f2e9ff,
- 0x404e1283, 0x53ec8af4, 0x670b226d, 0x74a9ba1a,
- 0x0ec4735f, 0x1d66eb28, 0x298143b1, 0x3a23dbc6,
- 0xdd5ad13b, 0xcef8494c, 0xfa1fe1d5, 0xe9bd79a2,
- 0x93d0b0e7, 0x80722890, 0xb4958009, 0xa737187e,
- 0xff17c604, 0xecb55e73, 0xd852f6ea, 0xcbf06e9d,
- 0xb19da7d8, 0xa23f3faf, 0x96d89736, 0x857a0f41,
- 0x620305bc, 0x71a19dcb, 0x45463552, 0x56e4ad25,
- 0x2c896460, 0x3f2bfc17, 0x0bcc548e, 0x186eccf9,
- 0xc0d23785, 0xd370aff2, 0xe797076b, 0xf4359f1c,
- 0x8e585659, 0x9dface2e, 0xa91d66b7, 0xbabffec0,
- 0x5dc6f43d, 0x4e646c4a, 0x7a83c4d3, 0x69215ca4,
- 0x134c95e1, 0x00ee0d96, 0x3409a50f, 0x27ab3d78,
- 0x809c2506, 0x933ebd71, 0xa7d915e8, 0xb47b8d9f,
- 0xce1644da, 0xddb4dcad, 0xe9537434, 0xfaf1ec43,
- 0x1d88e6be, 0x0e2a7ec9, 0x3acdd650, 0x296f4e27,
- 0x53028762, 0x40a01f15, 0x7447b78c, 0x67e52ffb,
- 0xbf59d487, 0xacfb4cf0, 0x981ce469, 0x8bbe7c1e,
- 0xf1d3b55b, 0xe2712d2c, 0xd69685b5, 0xc5341dc2,
- 0x224d173f, 0x31ef8f48, 0x050827d1, 0x16aabfa6,
- 0x6cc776e3, 0x7f65ee94, 0x4b82460d, 0x5820de7a,
- 0xfbc3faf9, 0xe861628e, 0xdc86ca17, 0xcf245260,
- 0xb5499b25, 0xa6eb0352, 0x920cabcb, 0x81ae33bc,
- 0x66d73941, 0x7575a136, 0x419209af, 0x523091d8,
- 0x285d589d, 0x3bffc0ea, 0x0f186873, 0x1cbaf004,
- 0xc4060b78, 0xd7a4930f, 0xe3433b96, 0xf0e1a3e1,
- 0x8a8c6aa4, 0x992ef2d3, 0xadc95a4a, 0xbe6bc23d,
- 0x5912c8c0, 0x4ab050b7, 0x7e57f82e, 0x6df56059,
- 0x1798a91c, 0x043a316b, 0x30dd99f2, 0x237f0185,
- 0x844819fb, 0x97ea818c, 0xa30d2915, 0xb0afb162,
- 0xcac27827, 0xd960e050, 0xed8748c9, 0xfe25d0be,
- 0x195cda43, 0x0afe4234, 0x3e19eaad, 0x2dbb72da,
- 0x57d6bb9f, 0x447423e8, 0x70938b71, 0x63311306,
- 0xbb8de87a, 0xa82f700d, 0x9cc8d894, 0x8f6a40e3,
- 0xf50789a6, 0xe6a511d1, 0xd242b948, 0xc1e0213f,
- 0x26992bc2, 0x353bb3b5, 0x01dc1b2c, 0x127e835b,
- 0x68134a1e, 0x7bb1d269, 0x4f567af0, 0x5cf4e287,
- 0x04d43cfd, 0x1776a48a, 0x23910c13, 0x30339464,
- 0x4a5e5d21, 0x59fcc556, 0x6d1b6dcf, 0x7eb9f5b8,
- 0x99c0ff45, 0x8a626732, 0xbe85cfab, 0xad2757dc,
- 0xd74a9e99, 0xc4e806ee, 0xf00fae77, 0xe3ad3600,
- 0x3b11cd7c, 0x28b3550b, 0x1c54fd92, 0x0ff665e5,
- 0x759baca0, 0x663934d7, 0x52de9c4e, 0x417c0439,
- 0xa6050ec4, 0xb5a796b3, 0x81403e2a, 0x92e2a65d,
- 0xe88f6f18, 0xfb2df76f, 0xcfca5ff6, 0xdc68c781,
- 0x7b5fdfff, 0x68fd4788, 0x5c1aef11, 0x4fb87766,
- 0x35d5be23, 0x26772654, 0x12908ecd, 0x013216ba,
- 0xe64b1c47, 0xf5e98430, 0xc10e2ca9, 0xd2acb4de,
- 0xa8c17d9b, 0xbb63e5ec, 0x8f844d75, 0x9c26d502,
- 0x449a2e7e, 0x5738b609, 0x63df1e90, 0x707d86e7,
- 0x0a104fa2, 0x19b2d7d5, 0x2d557f4c, 0x3ef7e73b,
- 0xd98eedc6, 0xca2c75b1, 0xfecbdd28, 0xed69455f,
- 0x97048c1a, 0x84a6146d, 0xb041bcf4, 0xa3e32483
-};
-static const uint32_t table2_[256] = {
- 0x00000000, 0xa541927e, 0x4f6f520d, 0xea2ec073,
- 0x9edea41a, 0x3b9f3664, 0xd1b1f617, 0x74f06469,
- 0x38513ec5, 0x9d10acbb, 0x773e6cc8, 0xd27ffeb6,
- 0xa68f9adf, 0x03ce08a1, 0xe9e0c8d2, 0x4ca15aac,
- 0x70a27d8a, 0xd5e3eff4, 0x3fcd2f87, 0x9a8cbdf9,
- 0xee7cd990, 0x4b3d4bee, 0xa1138b9d, 0x045219e3,
- 0x48f3434f, 0xedb2d131, 0x079c1142, 0xa2dd833c,
- 0xd62de755, 0x736c752b, 0x9942b558, 0x3c032726,
- 0xe144fb14, 0x4405696a, 0xae2ba919, 0x0b6a3b67,
- 0x7f9a5f0e, 0xdadbcd70, 0x30f50d03, 0x95b49f7d,
- 0xd915c5d1, 0x7c5457af, 0x967a97dc, 0x333b05a2,
- 0x47cb61cb, 0xe28af3b5, 0x08a433c6, 0xade5a1b8,
- 0x91e6869e, 0x34a714e0, 0xde89d493, 0x7bc846ed,
- 0x0f382284, 0xaa79b0fa, 0x40577089, 0xe516e2f7,
- 0xa9b7b85b, 0x0cf62a25, 0xe6d8ea56, 0x43997828,
- 0x37691c41, 0x92288e3f, 0x78064e4c, 0xdd47dc32,
- 0xc76580d9, 0x622412a7, 0x880ad2d4, 0x2d4b40aa,
- 0x59bb24c3, 0xfcfab6bd, 0x16d476ce, 0xb395e4b0,
- 0xff34be1c, 0x5a752c62, 0xb05bec11, 0x151a7e6f,
- 0x61ea1a06, 0xc4ab8878, 0x2e85480b, 0x8bc4da75,
- 0xb7c7fd53, 0x12866f2d, 0xf8a8af5e, 0x5de93d20,
- 0x29195949, 0x8c58cb37, 0x66760b44, 0xc337993a,
- 0x8f96c396, 0x2ad751e8, 0xc0f9919b, 0x65b803e5,
- 0x1148678c, 0xb409f5f2, 0x5e273581, 0xfb66a7ff,
- 0x26217bcd, 0x8360e9b3, 0x694e29c0, 0xcc0fbbbe,
- 0xb8ffdfd7, 0x1dbe4da9, 0xf7908dda, 0x52d11fa4,
- 0x1e704508, 0xbb31d776, 0x511f1705, 0xf45e857b,
- 0x80aee112, 0x25ef736c, 0xcfc1b31f, 0x6a802161,
- 0x56830647, 0xf3c29439, 0x19ec544a, 0xbcadc634,
- 0xc85da25d, 0x6d1c3023, 0x8732f050, 0x2273622e,
- 0x6ed23882, 0xcb93aafc, 0x21bd6a8f, 0x84fcf8f1,
- 0xf00c9c98, 0x554d0ee6, 0xbf63ce95, 0x1a225ceb,
- 0x8b277743, 0x2e66e53d, 0xc448254e, 0x6109b730,
- 0x15f9d359, 0xb0b84127, 0x5a968154, 0xffd7132a,
- 0xb3764986, 0x1637dbf8, 0xfc191b8b, 0x595889f5,
- 0x2da8ed9c, 0x88e97fe2, 0x62c7bf91, 0xc7862def,
- 0xfb850ac9, 0x5ec498b7, 0xb4ea58c4, 0x11abcaba,
- 0x655baed3, 0xc01a3cad, 0x2a34fcde, 0x8f756ea0,
- 0xc3d4340c, 0x6695a672, 0x8cbb6601, 0x29faf47f,
- 0x5d0a9016, 0xf84b0268, 0x1265c21b, 0xb7245065,
- 0x6a638c57, 0xcf221e29, 0x250cde5a, 0x804d4c24,
- 0xf4bd284d, 0x51fcba33, 0xbbd27a40, 0x1e93e83e,
- 0x5232b292, 0xf77320ec, 0x1d5de09f, 0xb81c72e1,
- 0xccec1688, 0x69ad84f6, 0x83834485, 0x26c2d6fb,
- 0x1ac1f1dd, 0xbf8063a3, 0x55aea3d0, 0xf0ef31ae,
- 0x841f55c7, 0x215ec7b9, 0xcb7007ca, 0x6e3195b4,
- 0x2290cf18, 0x87d15d66, 0x6dff9d15, 0xc8be0f6b,
- 0xbc4e6b02, 0x190ff97c, 0xf321390f, 0x5660ab71,
- 0x4c42f79a, 0xe90365e4, 0x032da597, 0xa66c37e9,
- 0xd29c5380, 0x77ddc1fe, 0x9df3018d, 0x38b293f3,
- 0x7413c95f, 0xd1525b21, 0x3b7c9b52, 0x9e3d092c,
- 0xeacd6d45, 0x4f8cff3b, 0xa5a23f48, 0x00e3ad36,
- 0x3ce08a10, 0x99a1186e, 0x738fd81d, 0xd6ce4a63,
- 0xa23e2e0a, 0x077fbc74, 0xed517c07, 0x4810ee79,
- 0x04b1b4d5, 0xa1f026ab, 0x4bdee6d8, 0xee9f74a6,
- 0x9a6f10cf, 0x3f2e82b1, 0xd50042c2, 0x7041d0bc,
- 0xad060c8e, 0x08479ef0, 0xe2695e83, 0x4728ccfd,
- 0x33d8a894, 0x96993aea, 0x7cb7fa99, 0xd9f668e7,
- 0x9557324b, 0x3016a035, 0xda386046, 0x7f79f238,
- 0x0b899651, 0xaec8042f, 0x44e6c45c, 0xe1a75622,
- 0xdda47104, 0x78e5e37a, 0x92cb2309, 0x378ab177,
- 0x437ad51e, 0xe63b4760, 0x0c158713, 0xa954156d,
- 0xe5f54fc1, 0x40b4ddbf, 0xaa9a1dcc, 0x0fdb8fb2,
- 0x7b2bebdb, 0xde6a79a5, 0x3444b9d6, 0x91052ba8
-};
-static const uint32_t table3_[256] = {
- 0x00000000, 0xdd45aab8, 0xbf672381, 0x62228939,
- 0x7b2231f3, 0xa6679b4b, 0xc4451272, 0x1900b8ca,
- 0xf64463e6, 0x2b01c95e, 0x49234067, 0x9466eadf,
- 0x8d665215, 0x5023f8ad, 0x32017194, 0xef44db2c,
- 0xe964b13d, 0x34211b85, 0x560392bc, 0x8b463804,
- 0x924680ce, 0x4f032a76, 0x2d21a34f, 0xf06409f7,
- 0x1f20d2db, 0xc2657863, 0xa047f15a, 0x7d025be2,
- 0x6402e328, 0xb9474990, 0xdb65c0a9, 0x06206a11,
- 0xd725148b, 0x0a60be33, 0x6842370a, 0xb5079db2,
- 0xac072578, 0x71428fc0, 0x136006f9, 0xce25ac41,
- 0x2161776d, 0xfc24ddd5, 0x9e0654ec, 0x4343fe54,
- 0x5a43469e, 0x8706ec26, 0xe524651f, 0x3861cfa7,
- 0x3e41a5b6, 0xe3040f0e, 0x81268637, 0x5c632c8f,
- 0x45639445, 0x98263efd, 0xfa04b7c4, 0x27411d7c,
- 0xc805c650, 0x15406ce8, 0x7762e5d1, 0xaa274f69,
- 0xb327f7a3, 0x6e625d1b, 0x0c40d422, 0xd1057e9a,
- 0xaba65fe7, 0x76e3f55f, 0x14c17c66, 0xc984d6de,
- 0xd0846e14, 0x0dc1c4ac, 0x6fe34d95, 0xb2a6e72d,
- 0x5de23c01, 0x80a796b9, 0xe2851f80, 0x3fc0b538,
- 0x26c00df2, 0xfb85a74a, 0x99a72e73, 0x44e284cb,
- 0x42c2eeda, 0x9f874462, 0xfda5cd5b, 0x20e067e3,
- 0x39e0df29, 0xe4a57591, 0x8687fca8, 0x5bc25610,
- 0xb4868d3c, 0x69c32784, 0x0be1aebd, 0xd6a40405,
- 0xcfa4bccf, 0x12e11677, 0x70c39f4e, 0xad8635f6,
- 0x7c834b6c, 0xa1c6e1d4, 0xc3e468ed, 0x1ea1c255,
- 0x07a17a9f, 0xdae4d027, 0xb8c6591e, 0x6583f3a6,
- 0x8ac7288a, 0x57828232, 0x35a00b0b, 0xe8e5a1b3,
- 0xf1e51979, 0x2ca0b3c1, 0x4e823af8, 0x93c79040,
- 0x95e7fa51, 0x48a250e9, 0x2a80d9d0, 0xf7c57368,
- 0xeec5cba2, 0x3380611a, 0x51a2e823, 0x8ce7429b,
- 0x63a399b7, 0xbee6330f, 0xdcc4ba36, 0x0181108e,
- 0x1881a844, 0xc5c402fc, 0xa7e68bc5, 0x7aa3217d,
- 0x52a0c93f, 0x8fe56387, 0xedc7eabe, 0x30824006,
- 0x2982f8cc, 0xf4c75274, 0x96e5db4d, 0x4ba071f5,
- 0xa4e4aad9, 0x79a10061, 0x1b838958, 0xc6c623e0,
- 0xdfc69b2a, 0x02833192, 0x60a1b8ab, 0xbde41213,
- 0xbbc47802, 0x6681d2ba, 0x04a35b83, 0xd9e6f13b,
- 0xc0e649f1, 0x1da3e349, 0x7f816a70, 0xa2c4c0c8,
- 0x4d801be4, 0x90c5b15c, 0xf2e73865, 0x2fa292dd,
- 0x36a22a17, 0xebe780af, 0x89c50996, 0x5480a32e,
- 0x8585ddb4, 0x58c0770c, 0x3ae2fe35, 0xe7a7548d,
- 0xfea7ec47, 0x23e246ff, 0x41c0cfc6, 0x9c85657e,
- 0x73c1be52, 0xae8414ea, 0xcca69dd3, 0x11e3376b,
- 0x08e38fa1, 0xd5a62519, 0xb784ac20, 0x6ac10698,
- 0x6ce16c89, 0xb1a4c631, 0xd3864f08, 0x0ec3e5b0,
- 0x17c35d7a, 0xca86f7c2, 0xa8a47efb, 0x75e1d443,
- 0x9aa50f6f, 0x47e0a5d7, 0x25c22cee, 0xf8878656,
- 0xe1873e9c, 0x3cc29424, 0x5ee01d1d, 0x83a5b7a5,
- 0xf90696d8, 0x24433c60, 0x4661b559, 0x9b241fe1,
- 0x8224a72b, 0x5f610d93, 0x3d4384aa, 0xe0062e12,
- 0x0f42f53e, 0xd2075f86, 0xb025d6bf, 0x6d607c07,
- 0x7460c4cd, 0xa9256e75, 0xcb07e74c, 0x16424df4,
- 0x106227e5, 0xcd278d5d, 0xaf050464, 0x7240aedc,
- 0x6b401616, 0xb605bcae, 0xd4273597, 0x09629f2f,
- 0xe6264403, 0x3b63eebb, 0x59416782, 0x8404cd3a,
- 0x9d0475f0, 0x4041df48, 0x22635671, 0xff26fcc9,
- 0x2e238253, 0xf36628eb, 0x9144a1d2, 0x4c010b6a,
- 0x5501b3a0, 0x88441918, 0xea669021, 0x37233a99,
- 0xd867e1b5, 0x05224b0d, 0x6700c234, 0xba45688c,
- 0xa345d046, 0x7e007afe, 0x1c22f3c7, 0xc167597f,
- 0xc747336e, 0x1a0299d6, 0x782010ef, 0xa565ba57,
- 0xbc65029d, 0x6120a825, 0x0302211c, 0xde478ba4,
- 0x31035088, 0xec46fa30, 0x8e647309, 0x5321d9b1,
- 0x4a21617b, 0x9764cbc3, 0xf54642fa, 0x2803e842
-};
-
-// Used to fetch a naturally-aligned 32-bit word in little endian byte-order
-static inline uint32_t LE_LOAD32(const uint8_t *p) {
- return DecodeFixed32(reinterpret_cast<const char*>(p));
-}
-
-static inline uint64_t LE_LOAD64(const uint8_t *p) {
- return DecodeFixed64(reinterpret_cast<const char*>(p));
-}
-
-static inline void Slow_CRC32(uint64_t* l, uint8_t const **p) {
- uint32_t c = *l ^ LE_LOAD32(*p);
- *p += 4;
- *l = table3_[c & 0xff] ^
- table2_[(c >> 8) & 0xff] ^
- table1_[(c >> 16) & 0xff] ^
- table0_[c >> 24];
- // DO it twice.
- c = *l ^ LE_LOAD32(*p);
- *p += 4;
- *l = table3_[c & 0xff] ^
- table2_[(c >> 8) & 0xff] ^
- table1_[(c >> 16) & 0xff] ^
- table0_[c >> 24];
-}
-
-static inline void Fast_CRC32(uint64_t* l, uint8_t const **p) {
- #ifdef __SSE4_2__
- *l = _mm_crc32_u64(*l, LE_LOAD64(*p));
- *p += 8;
- #else
- Slow_CRC32(l, p);
- #endif
-}
-
-// Detect if SS42 or not.
-static bool isSSE42() {
- #ifdef __GNUC__
- uint32_t c_;
- uint32_t d_;
- __asm__("cpuid" : "=c"(c_), "=d"(d_) : "a"(1) : "ebx");
- return c_ & (1U << 20); // copied from CpuId.h in Folly.
- #else
- return false;
- #endif
-}
-
-typedef void (*Function)(uint64_t*, uint8_t const**);
-static Function func = nullptr;
-
-static inline Function Choose_CRC32() {
- return isSSE42() ? Fast_CRC32 : Slow_CRC32;
-}
-
-static inline void CRC32(uint64_t* l, uint8_t const **p) {
- if (func != nullptr) {
- return func(l, p);
- }
- func = Choose_CRC32();
- func(l, p);
-}
-
-uint32_t Extend(uint32_t crc, const char* buf, size_t size) {
- const uint8_t *p = reinterpret_cast<const uint8_t *>(buf);
- const uint8_t *e = p + size;
- uint64_t l = crc ^ 0xffffffffu;
-
-// Align n to (1 << m) byte boundary
-#define ALIGN(n, m) ((n + ((1 << m) - 1)) & ~((1 << m) - 1))
-
-#define STEP1 do { \
- int c = (l & 0xff) ^ *p++; \
- l = table0_[c] ^ (l >> 8); \
-} while (0)
-
-
- // Point x at first 16-byte aligned byte in string. This might be
- // just past the end of the string.
- const uintptr_t pval = reinterpret_cast<uintptr_t>(p);
- const uint8_t* x = reinterpret_cast<const uint8_t*>(ALIGN(pval, 4));
- if (x <= e) {
- // Process bytes until finished or p is 16-byte aligned
- while (p != x) {
- STEP1;
- }
- }
- // Process bytes 16 at a time
- while ((e-p) >= 16) {
- CRC32(&l, &p);
- CRC32(&l, &p);
- }
- // Process bytes 8 at a time
- while ((e-p) >= 8) {
- CRC32(&l, &p);
- }
- // Process the last few bytes
- while (p != e) {
- STEP1;
- }
-#undef STEP1
-#undef ALIGN
- return l ^ 0xffffffffu;
-}
-
-} // namespace crc32c
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <stddef.h>
-#include <stdint.h>
-
-namespace rocksdb {
-namespace crc32c {
-
-// Return the crc32c of concat(A, data[0,n-1]) where init_crc is the
-// crc32c of some string A. Extend() is often used to maintain the
-// crc32c of a stream of data.
-extern uint32_t Extend(uint32_t init_crc, const char* data, size_t n);
-
-// Return the crc32c of data[0,n-1]
-inline uint32_t Value(const char* data, size_t n) {
- return Extend(0, data, n);
-}
-
-static const uint32_t kMaskDelta = 0xa282ead8ul;
-
-// Return a masked representation of crc.
-//
-// Motivation: it is problematic to compute the CRC of a string that
-// contains embedded CRCs. Therefore we recommend that CRCs stored
-// somewhere (e.g., in files) should be masked before being stored.
-inline uint32_t Mask(uint32_t crc) {
- // Rotate right by 15 bits and add a constant.
- return ((crc >> 15) | (crc << 17)) + kMaskDelta;
-}
-
-// Return the crc whose masked representation is masked_crc.
-inline uint32_t Unmask(uint32_t masked_crc) {
- uint32_t rot = masked_crc - kMaskDelta;
- return ((rot >> 17) | (rot << 15));
-}
-
-} // namespace crc32c
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/crc32c.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-namespace crc32c {
-
-class CRC { };
-
-TEST(CRC, StandardResults) {
- // From rfc3720 section B.4.
- char buf[32];
-
- memset(buf, 0, sizeof(buf));
- ASSERT_EQ(0x8a9136aaU, Value(buf, sizeof(buf)));
-
- memset(buf, 0xff, sizeof(buf));
- ASSERT_EQ(0x62a8ab43U, Value(buf, sizeof(buf)));
-
- for (int i = 0; i < 32; i++) {
- buf[i] = i;
- }
- ASSERT_EQ(0x46dd794eU, Value(buf, sizeof(buf)));
-
- for (int i = 0; i < 32; i++) {
- buf[i] = 31 - i;
- }
- ASSERT_EQ(0x113fdb5cU, Value(buf, sizeof(buf)));
-
- unsigned char data[48] = {
- 0x01, 0xc0, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x14, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x04, 0x00,
- 0x00, 0x00, 0x00, 0x14,
- 0x00, 0x00, 0x00, 0x18,
- 0x28, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x02, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- };
- ASSERT_EQ(0xd9963a56, Value(reinterpret_cast<char*>(data), sizeof(data)));
-}
-
-TEST(CRC, Values) {
- ASSERT_NE(Value("a", 1), Value("foo", 3));
-}
-
-TEST(CRC, Extend) {
- ASSERT_EQ(Value("hello world", 11),
- Extend(Value("hello ", 6), "world", 5));
-}
-
-TEST(CRC, Mask) {
- uint32_t crc = Value("foo", 3);
- ASSERT_NE(crc, Mask(crc));
- ASSERT_NE(crc, Mask(Mask(crc)));
- ASSERT_EQ(crc, Unmask(Mask(crc)));
- ASSERT_EQ(crc, Unmask(Unmask(Mask(Mask(crc)))));
-}
-
-} // namespace crc32c
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/env.h"
-#include "rocksdb/options.h"
-
-namespace rocksdb {
-
-Env::~Env() {
-}
-
-SequentialFile::~SequentialFile() {
-}
-
-RandomAccessFile::~RandomAccessFile() {
-}
-
-WritableFile::~WritableFile() {
-}
-
-Logger::~Logger() {
-}
-
-FileLock::~FileLock() {
-}
-
-void LogFlush(Logger *info_log) {
- if (info_log) {
- info_log->Flush();
- }
-}
-
-void Log(Logger* info_log, const char* format, ...) {
- if (info_log) {
- va_list ap;
- va_start(ap, format);
- info_log->Logv(format, ap);
- va_end(ap);
- }
-}
-
-void LogFlush(const shared_ptr<Logger>& info_log) {
- if (info_log) {
- info_log->Flush();
- }
-}
-
-void Log(const shared_ptr<Logger>& info_log, const char* format, ...) {
- if (info_log) {
- va_list ap;
- va_start(ap, format);
- info_log->Logv(format, ap);
- va_end(ap);
- }
-}
-
-static Status DoWriteStringToFile(Env* env, const Slice& data,
- const std::string& fname,
- bool should_sync) {
- unique_ptr<WritableFile> file;
- EnvOptions soptions;
- Status s = env->NewWritableFile(fname, &file, soptions);
- if (!s.ok()) {
- return s;
- }
- s = file->Append(data);
- if (s.ok() && should_sync) {
- s = file->Sync();
- }
- if (!s.ok()) {
- env->DeleteFile(fname);
- }
- return s;
-}
-
-Status WriteStringToFile(Env* env, const Slice& data,
- const std::string& fname) {
- return DoWriteStringToFile(env, data, fname, false);
-}
-
-Status WriteStringToFileSync(Env* env, const Slice& data,
- const std::string& fname) {
- return DoWriteStringToFile(env, data, fname, true);
-}
-
-Status ReadFileToString(Env* env, const std::string& fname, std::string* data) {
- EnvOptions soptions;
- data->clear();
- unique_ptr<SequentialFile> file;
- Status s = env->NewSequentialFile(fname, &file, soptions);
- if (!s.ok()) {
- return s;
- }
- static const int kBufferSize = 8192;
- char* space = new char[kBufferSize];
- while (true) {
- Slice fragment;
- s = file->Read(kBufferSize, &fragment, space);
- if (!s.ok()) {
- break;
- }
- data->append(fragment.data(), fragment.size());
- if (fragment.empty()) {
- break;
- }
- }
- delete[] space;
- return s;
-}
-
-EnvWrapper::~EnvWrapper() {
-}
-
-namespace { // anonymous namespace
-
-void AssignEnvOptions(EnvOptions* env_options, const Options& options) {
- env_options->use_os_buffer = options.allow_os_buffer;
- env_options->use_mmap_reads = options.allow_mmap_reads;
- env_options->use_mmap_writes = options.allow_mmap_writes;
- env_options->set_fd_cloexec = options.is_fd_close_on_exec;
- env_options->bytes_per_sync = options.bytes_per_sync;
-}
-
-}
-
-EnvOptions::EnvOptions(const Options& options) {
- AssignEnvOptions(this, options);
-}
-
-EnvOptions::EnvOptions() {
- Options options;
- AssignEnvOptions(this, options);
-}
-
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#ifdef USE_HDFS
-#ifndef ROCKSDB_HDFS_FILE_C
-#define ROCKSDB_HDFS_FILE_C
-
-#include <algorithm>
-#include <stdio.h>
-#include <sys/time.h>
-#include <time.h>
-#include <iostream>
-#include <sstream>
-#include "rocksdb/env.h"
-#include "rocksdb/status.h"
-#include "hdfs/hdfs.h"
-#include "hdfs/env_hdfs.h"
-
-//
-// This file defines an HDFS environment for rocksdb. It uses the libhdfs
-// api to access HDFS. All HDFS files created by one instance of rocksdb
-// will reside on the same HDFS cluster.
-//
-
-namespace rocksdb {
-
-namespace {
-
-// Log error message
-static Status IOError(const std::string& context, int err_number) {
- return Status::IOError(context, strerror(err_number));
-}
-
-// assume that there is one global logger for now. It is not thread-safe,
-// but need not be because the logger is initialized at db-open time.
-static Logger* mylog = nullptr;
-
-// Used for reading a file from HDFS. It implements both sequential-read
-// access methods as well as random read access methods.
-class HdfsReadableFile: virtual public SequentialFile, virtual public RandomAccessFile {
- private:
- hdfsFS fileSys_;
- std::string filename_;
- hdfsFile hfile_;
-
- public:
- HdfsReadableFile(hdfsFS fileSys, const std::string& fname)
- : fileSys_(fileSys), filename_(fname), hfile_(nullptr) {
- Log(mylog, "[hdfs] HdfsReadableFile opening file %s\n",
- filename_.c_str());
- hfile_ = hdfsOpenFile(fileSys_, filename_.c_str(), O_RDONLY, 0, 0, 0);
- Log(mylog, "[hdfs] HdfsReadableFile opened file %s hfile_=0x%p\n",
- filename_.c_str(), hfile_);
- }
-
- virtual ~HdfsReadableFile() {
- Log(mylog, "[hdfs] HdfsReadableFile closing file %s\n",
- filename_.c_str());
- hdfsCloseFile(fileSys_, hfile_);
- Log(mylog, "[hdfs] HdfsReadableFile closed file %s\n",
- filename_.c_str());
- hfile_ = nullptr;
- }
-
- bool isValid() {
- return hfile_ != nullptr;
- }
-
- // sequential access, read data at current offset in file
- virtual Status Read(size_t n, Slice* result, char* scratch) {
- Status s;
- Log(mylog, "[hdfs] HdfsReadableFile reading %s %ld\n",
- filename_.c_str(), n);
- size_t bytes_read = hdfsRead(fileSys_, hfile_, scratch, (tSize)n);
- Log(mylog, "[hdfs] HdfsReadableFile read %s\n", filename_.c_str());
- *result = Slice(scratch, bytes_read);
- if (bytes_read < n) {
- if (feof()) {
- // We leave status as ok if we hit the end of the file
- } else {
- // A partial read with an error: return a non-ok status
- s = IOError(filename_, errno);
- }
- }
- return s;
- }
-
- // random access, read data from specified offset in file
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- Status s;
- Log(mylog, "[hdfs] HdfsReadableFile preading %s\n", filename_.c_str());
- ssize_t bytes_read = hdfsPread(fileSys_, hfile_, offset,
- (void*)scratch, (tSize)n);
- Log(mylog, "[hdfs] HdfsReadableFile pread %s\n", filename_.c_str());
- *result = Slice(scratch, (bytes_read < 0) ? 0 : bytes_read);
- if (bytes_read < 0) {
- // An error: return a non-ok status
- s = IOError(filename_, errno);
- }
- return s;
- }
-
- virtual Status Skip(uint64_t n) {
- Log(mylog, "[hdfs] HdfsReadableFile skip %s\n", filename_.c_str());
- // get current offset from file
- tOffset current = hdfsTell(fileSys_, hfile_);
- if (current < 0) {
- return IOError(filename_, errno);
- }
- // seek to new offset in file
- tOffset newoffset = current + n;
- int val = hdfsSeek(fileSys_, hfile_, newoffset);
- if (val < 0) {
- return IOError(filename_, errno);
- }
- return Status::OK();
- }
-
- private:
-
- // returns true if we are at the end of file, false otherwise
- bool feof() {
- Log(mylog, "[hdfs] HdfsReadableFile feof %s\n", filename_.c_str());
- if (hdfsTell(fileSys_, hfile_) == fileSize()) {
- return true;
- }
- return false;
- }
-
- // the current size of the file
- tOffset fileSize() {
- Log(mylog, "[hdfs] HdfsReadableFile fileSize %s\n", filename_.c_str());
- hdfsFileInfo* pFileInfo = hdfsGetPathInfo(fileSys_, filename_.c_str());
- tOffset size = 0L;
- if (pFileInfo != nullptr) {
- size = pFileInfo->mSize;
- hdfsFreeFileInfo(pFileInfo, 1);
- } else {
- throw rocksdb::HdfsFatalException("fileSize on unknown file " +
- filename_);
- }
- return size;
- }
-};
-
-// Appends to an existing file in HDFS.
-class HdfsWritableFile: public WritableFile {
- private:
- hdfsFS fileSys_;
- std::string filename_;
- hdfsFile hfile_;
-
- public:
- HdfsWritableFile(hdfsFS fileSys, const std::string& fname)
- : fileSys_(fileSys), filename_(fname) , hfile_(nullptr) {
- Log(mylog, "[hdfs] HdfsWritableFile opening %s\n", filename_.c_str());
- hfile_ = hdfsOpenFile(fileSys_, filename_.c_str(), O_WRONLY, 0, 0, 0);
- Log(mylog, "[hdfs] HdfsWritableFile opened %s\n", filename_.c_str());
- assert(hfile_ != nullptr);
- }
- virtual ~HdfsWritableFile() {
- if (hfile_ != nullptr) {
- Log(mylog, "[hdfs] HdfsWritableFile closing %s\n", filename_.c_str());
- hdfsCloseFile(fileSys_, hfile_);
- Log(mylog, "[hdfs] HdfsWritableFile closed %s\n", filename_.c_str());
- hfile_ = nullptr;
- }
- }
-
- // If the file was successfully created, then this returns true.
- // Otherwise returns false.
- bool isValid() {
- return hfile_ != nullptr;
- }
-
- // The name of the file, mostly needed for debug logging.
- const std::string& getName() {
- return filename_;
- }
-
- virtual Status Append(const Slice& data) {
- Log(mylog, "[hdfs] HdfsWritableFile Append %s\n", filename_.c_str());
- const char* src = data.data();
- size_t left = data.size();
- size_t ret = hdfsWrite(fileSys_, hfile_, src, left);
- Log(mylog, "[hdfs] HdfsWritableFile Appended %s\n", filename_.c_str());
- if (ret != left) {
- return IOError(filename_, errno);
- }
- return Status::OK();
- }
-
- virtual Status Flush() {
- return Status::OK();
- }
-
- virtual Status Sync() {
- Status s;
- Log(mylog, "[hdfs] HdfsWritableFile Sync %s\n", filename_.c_str());
- if (hdfsFlush(fileSys_, hfile_) == -1) {
- return IOError(filename_, errno);
- }
- if (hdfsSync(fileSys_, hfile_) == -1) {
- return IOError(filename_, errno);
- }
- Log(mylog, "[hdfs] HdfsWritableFile Synced %s\n", filename_.c_str());
- return Status::OK();
- }
-
- // This is used by HdfsLogger to write data to the debug log file
- virtual Status Append(const char* src, size_t size) {
- if (hdfsWrite(fileSys_, hfile_, src, size) != (tSize)size) {
- return IOError(filename_, errno);
- }
- return Status::OK();
- }
-
- virtual Status Close() {
- Log(mylog, "[hdfs] HdfsWritableFile closing %s\n", filename_.c_str());
- if (hdfsCloseFile(fileSys_, hfile_) != 0) {
- return IOError(filename_, errno);
- }
- Log(mylog, "[hdfs] HdfsWritableFile closed %s\n", filename_.c_str());
- hfile_ = nullptr;
- return Status::OK();
- }
-};
-
-// The object that implements the debug logs to reside in HDFS.
-class HdfsLogger : public Logger {
- private:
- HdfsWritableFile* file_;
- uint64_t (*gettid_)(); // Return the thread id for the current thread
-
- public:
- HdfsLogger(HdfsWritableFile* f, uint64_t (*gettid)())
- : file_(f), gettid_(gettid) {
- Log(mylog, "[hdfs] HdfsLogger opened %s\n",
- file_->getName().c_str());
- }
-
- virtual ~HdfsLogger() {
- Log(mylog, "[hdfs] HdfsLogger closed %s\n",
- file_->getName().c_str());
- delete file_;
- if (mylog != nullptr && mylog == this) {
- mylog = nullptr;
- }
- }
-
- virtual void Logv(const char* format, va_list ap) {
- const uint64_t thread_id = (*gettid_)();
-
- // We try twice: the first time with a fixed-size stack allocated buffer,
- // and the second time with a much larger dynamically allocated buffer.
- char buffer[500];
- for (int iter = 0; iter < 2; iter++) {
- char* base;
- int bufsize;
- if (iter == 0) {
- bufsize = sizeof(buffer);
- base = buffer;
- } else {
- bufsize = 30000;
- base = new char[bufsize];
- }
- char* p = base;
- char* limit = base + bufsize;
-
- struct timeval now_tv;
- gettimeofday(&now_tv, nullptr);
- const time_t seconds = now_tv.tv_sec;
- struct tm t;
- localtime_r(&seconds, &t);
- p += snprintf(p, limit - p,
- "%04d/%02d/%02d-%02d:%02d:%02d.%06d %llx ",
- t.tm_year + 1900,
- t.tm_mon + 1,
- t.tm_mday,
- t.tm_hour,
- t.tm_min,
- t.tm_sec,
- static_cast<int>(now_tv.tv_usec),
- static_cast<long long unsigned int>(thread_id));
-
- // Print the message
- if (p < limit) {
- va_list backup_ap;
- va_copy(backup_ap, ap);
- p += vsnprintf(p, limit - p, format, backup_ap);
- va_end(backup_ap);
- }
-
- // Truncate to available space if necessary
- if (p >= limit) {
- if (iter == 0) {
- continue; // Try again with larger buffer
- } else {
- p = limit - 1;
- }
- }
-
- // Add newline if necessary
- if (p == base || p[-1] != '\n') {
- *p++ = '\n';
- }
-
- assert(p <= limit);
- file_->Append(base, p-base);
- file_->Flush();
- if (base != buffer) {
- delete[] base;
- }
- break;
- }
- }
-};
-
-} // namespace
-
-// Finally, the hdfs environment
-
-// open a file for sequential reading
-Status HdfsEnv::NewSequentialFile(const std::string& fname,
- SequentialFile** result) {
- HdfsReadableFile* f = new HdfsReadableFile(fileSys_, fname);
- if (f == nullptr) {
- *result = nullptr;
- return IOError(fname, errno);
- }
- *result = dynamic_cast<SequentialFile*>(f);
- return Status::OK();
-}
-
-// open a file for random reading
-Status HdfsEnv::NewRandomAccessFile(const std::string& fname,
- RandomAccessFile** result) {
- HdfsReadableFile* f = new HdfsReadableFile(fileSys_, fname);
- if (f == nullptr) {
- *result = nullptr;
- return IOError(fname, errno);
- }
- *result = dynamic_cast<RandomAccessFile*>(f);
- return Status::OK();
-}
-
-// create a new file for writing
-Status HdfsEnv::NewWritableFile(const std::string& fname,
- WritableFile** result) {
- Status s;
- HdfsWritableFile* f = new HdfsWritableFile(fileSys_, fname);
- if (f == nullptr || !f->isValid()) {
- *result = nullptr;
- return IOError(fname, errno);
- }
- *result = dynamic_cast<WritableFile*>(f);
- return Status::OK();
-}
-
-Status HdfsEnv::NewRandomRWFile(const std::string& fname,
- unique_ptr<RandomRWFile>* result,
- const EnvOptions& options) {
- return Status::NotSupported("NewRandomRWFile not supported on HdfsEnv");
-}
-
-bool HdfsEnv::FileExists(const std::string& fname) {
- int value = hdfsExists(fileSys_, fname.c_str());
- if (value == 0) {
- return true;
- }
- return false;
-}
-
-Status HdfsEnv::GetChildren(const std::string& path,
- std::vector<std::string>* result) {
- int value = hdfsExists(fileSys_, path.c_str());
- switch (value) {
- case 0: {
- int numEntries = 0;
- hdfsFileInfo* pHdfsFileInfo = 0;
- pHdfsFileInfo = hdfsListDirectory(fileSys_, path.c_str(), &numEntries);
- if (numEntries >= 0) {
- for(int i = 0; i < numEntries; i++) {
- char* pathname = pHdfsFileInfo[i].mName;
- char* filename = rindex(pathname, '/');
- if (filename != nullptr) {
- result->push_back(filename+1);
- }
- }
- if (pHdfsFileInfo != nullptr) {
- hdfsFreeFileInfo(pHdfsFileInfo, numEntries);
- }
- } else {
- // numEntries < 0 indicates error
- Log(mylog, "hdfsListDirectory call failed with error ");
- throw HdfsFatalException("hdfsListDirectory call failed negative error.\n");
- }
- break;
- }
- case 1: // directory does not exist, exit
- break;
- default: // anything else should be an error
- Log(mylog, "hdfsListDirectory call failed with error ");
- throw HdfsFatalException("hdfsListDirectory call failed with error.\n");
- }
- return Status::OK();
-}
-
-Status HdfsEnv::DeleteFile(const std::string& fname) {
- if (hdfsDelete(fileSys_, fname.c_str()) == 0) {
- return Status::OK();
- }
- return IOError(fname, errno);
-};
-
-Status HdfsEnv::CreateDir(const std::string& name) {
- if (hdfsCreateDirectory(fileSys_, name.c_str()) == 0) {
- return Status::OK();
- }
- return IOError(name, errno);
-};
-
-Status HdfsEnv::CreateDirIfMissing(const std::string& name) {
- const int value = hdfsExists(fileSys_, name.c_str());
- // Not atomic. state might change b/w hdfsExists and CreateDir.
- if (value == 0) {
- return Status::OK();
- } else {
- return CreateDir(name);
- }
-};
-
-Status HdfsEnv::DeleteDir(const std::string& name) {
- return DeleteFile(name);
-};
-
-Status HdfsEnv::GetFileSize(const std::string& fname, uint64_t* size) {
- *size = 0L;
- hdfsFileInfo* pFileInfo = hdfsGetPathInfo(fileSys_, fname.c_str());
- if (pFileInfo != nullptr) {
- *size = pFileInfo->mSize;
- hdfsFreeFileInfo(pFileInfo, 1);
- return Status::OK();
- }
- return IOError(fname, errno);
-}
-
-Status HdfsEnv::GetFileModificationTime(const std::string& fname,
- uint64_t* time) {
- hdfsFileInfo* pFileInfo = hdfsGetPathInfo(fileSys_, fname.c_str());
- if (pFileInfo != nullptr) {
- *time = static_cast<uint64_t>(pFileInfo->mLastMod);
- hdfsFreeFileInfo(pFileInfo, 1);
- return Status::OK();
- }
- return IOError(fname, errno);
-
-}
-
-// The rename is not atomic. HDFS does not allow a renaming if the
-// target already exists. So, we delete the target before attemting the
-// rename.
-Status HdfsEnv::RenameFile(const std::string& src, const std::string& target) {
- hdfsDelete(fileSys_, target.c_str());
- if (hdfsRename(fileSys_, src.c_str(), target.c_str()) == 0) {
- return Status::OK();
- }
- return IOError(src, errno);
-}
-
-Status HdfsEnv::LockFile(const std::string& fname, FileLock** lock) {
- // there isn's a very good way to atomically check and create
- // a file via libhdfs
- *lock = nullptr;
- return Status::OK();
-}
-
-Status HdfsEnv::UnlockFile(FileLock* lock) {
- return Status::OK();
-}
-
-Status HdfsEnv::NewLogger(const std::string& fname,
- shared_ptr<Logger>* result) {
- HdfsWritableFile* f = new HdfsWritableFile(fileSys_, fname);
- if (f == nullptr || !f->isValid()) {
- *result = nullptr;
- return IOError(fname, errno);
- }
- HdfsLogger* h = new HdfsLogger(f, &HdfsEnv::gettid);
- *result = h;
- if (mylog == nullptr) {
- // mylog = h; // uncomment this for detailed logging
- }
- return Status::OK();
-}
-
-} // namespace rocksdb
-
-#endif // ROCKSDB_HDFS_FILE_C
-
-#else // USE_HDFS
-
-// dummy placeholders used when HDFS is not available
-#include "rocksdb/env.h"
-#include "hdfs/env_hdfs.h"
-namespace rocksdb {
- Status HdfsEnv::NewSequentialFile(const std::string& fname,
- unique_ptr<SequentialFile>* result,
- const EnvOptions& options) {
- return Status::NotSupported("Not compiled with hdfs support");
- }
-}
-
-#endif
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <deque>
-#include <set>
-#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/vfs.h>
-#include <time.h>
-#include <unistd.h>
-#if defined(OS_LINUX)
-#include <linux/fs.h>
-#include <fcntl.h>
-#endif
-#if defined(LEVELDB_PLATFORM_ANDROID)
-#include <sys/stat.h>
-#endif
-#include "rocksdb/env.h"
-#include "rocksdb/slice.h"
-#include "port/port.h"
-#include "util/coding.h"
-#include "util/logging.h"
-#include "util/posix_logger.h"
-#include "util/random.h"
-#include <signal.h>
-
-#if !defined(TMPFS_MAGIC)
-#define TMPFS_MAGIC 0x01021994
-#endif
-#if !defined(XFS_SUPER_MAGIC)
-#define XFS_SUPER_MAGIC 0x58465342
-#endif
-#if !defined(EXT4_SUPER_MAGIC)
-#define EXT4_SUPER_MAGIC 0xEF53
-#endif
-
-// This is only set from db_stress.cc and for testing only.
-// If non-zero, kill at various points in source code with probability 1/this
-int rocksdb_kill_odds = 0;
-
-namespace rocksdb {
-
-
-namespace {
-
-// list of pathnames that are locked
-static std::set<std::string> lockedFiles;
-static port::Mutex mutex_lockedFiles;
-
-static Status IOError(const std::string& context, int err_number) {
- return Status::IOError(context, strerror(err_number));
-}
-
-#ifdef NDEBUG
-// empty in release build
-#define TEST_KILL_RANDOM(rocksdb_kill_odds)
-#else
-
-// Kill the process with probablity 1/odds for testing.
-static void TestKillRandom(int odds, const std::string& srcfile,
- int srcline) {
- time_t curtime = time(nullptr);
- Random r((uint32_t)curtime);
-
- assert(odds > 0);
- bool crash = r.OneIn(odds);
- if (crash) {
- fprintf(stdout, "Crashing at %s:%d\n", srcfile.c_str(), srcline);
- fflush(stdout);
- kill(getpid(), SIGTERM);
- }
-}
-
-// To avoid crashing always at some frequently executed codepaths (during
-// kill random test), use this factor to reduce odds
-#define REDUCE_ODDS 2
-#define REDUCE_ODDS2 4
-
-#define TEST_KILL_RANDOM(rocksdb_kill_odds) { \
- if (rocksdb_kill_odds > 0) { \
- TestKillRandom(rocksdb_kill_odds, __FILE__, __LINE__); \
- } \
-}
-
-#endif
-
-#if defined(OS_LINUX)
-namespace {
- static size_t GetUniqueIdFromFile(int fd, char* id, size_t max_size) {
- if (max_size < kMaxVarint64Length*3) {
- return 0;
- }
-
- struct stat buf;
- int result = fstat(fd, &buf);
- if (result == -1) {
- return 0;
- }
-
- long version = 0;
- result = ioctl(fd, FS_IOC_GETVERSION, &version);
- if (result == -1) {
- return 0;
- }
- uint64_t uversion = (uint64_t)version;
-
- char* rid = id;
- rid = EncodeVarint64(rid, buf.st_dev);
- rid = EncodeVarint64(rid, buf.st_ino);
- rid = EncodeVarint64(rid, uversion);
- assert(rid >= id);
- return static_cast<size_t>(rid-id);
- }
-}
-#endif
-
-class PosixSequentialFile: public SequentialFile {
- private:
- std::string filename_;
- FILE* file_;
- int fd_;
- bool use_os_buffer_;
-
- public:
- PosixSequentialFile(const std::string& fname, FILE* f,
- const EnvOptions& options)
- : filename_(fname), file_(f), fd_(fileno(f)),
- use_os_buffer_(options.use_os_buffer) {
- }
- virtual ~PosixSequentialFile() { fclose(file_); }
-
- virtual Status Read(size_t n, Slice* result, char* scratch) {
- Status s;
- size_t r = fread_unlocked(scratch, 1, n, file_);
- *result = Slice(scratch, r);
- if (r < n) {
- if (feof(file_)) {
- // We leave status as ok if we hit the end of the file
- } else {
- // A partial read with an error: return a non-ok status
- s = IOError(filename_, errno);
- }
- }
- if (!use_os_buffer_) {
- // we need to fadvise away the entire range of pages because
- // we do not want readahead pages to be cached.
- posix_fadvise(fd_, 0, 0, POSIX_FADV_DONTNEED); // free OS pages
- }
- return s;
- }
-
- virtual Status Skip(uint64_t n) {
- if (fseek(file_, n, SEEK_CUR)) {
- return IOError(filename_, errno);
- }
- return Status::OK();
- }
-
- virtual Status InvalidateCache(size_t offset, size_t length) {
- // free OS pages
- int ret = posix_fadvise(fd_, offset, length, POSIX_FADV_DONTNEED);
- if (ret == 0) {
- return Status::OK();
- }
- return IOError(filename_, errno);
- }
-};
-
-// pread() based random-access
-class PosixRandomAccessFile: public RandomAccessFile {
- private:
- std::string filename_;
- int fd_;
- bool use_os_buffer_;
-
- public:
- PosixRandomAccessFile(const std::string& fname, int fd,
- const EnvOptions& options)
- : filename_(fname), fd_(fd), use_os_buffer_(options.use_os_buffer) {
- assert(!options.use_mmap_reads);
- }
- virtual ~PosixRandomAccessFile() { close(fd_); }
-
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- Status s;
- ssize_t r = pread(fd_, scratch, n, static_cast<off_t>(offset));
- *result = Slice(scratch, (r < 0) ? 0 : r);
- if (r < 0) {
- // An error: return a non-ok status
- s = IOError(filename_, errno);
- }
- if (!use_os_buffer_) {
- // we need to fadvise away the entire range of pages because
- // we do not want readahead pages to be cached.
- posix_fadvise(fd_, 0, 0, POSIX_FADV_DONTNEED); // free OS pages
- }
- return s;
- }
-
-#if defined(OS_LINUX)
- virtual size_t GetUniqueId(char* id, size_t max_size) const {
- return GetUniqueIdFromFile(fd_, id, max_size);
- }
-#endif
-
- virtual void Hint(AccessPattern pattern) {
- switch(pattern) {
- case NORMAL:
- posix_fadvise(fd_, 0, 0, POSIX_FADV_NORMAL);
- break;
- case RANDOM:
- posix_fadvise(fd_, 0, 0, POSIX_FADV_RANDOM);
- break;
- case SEQUENTIAL:
- posix_fadvise(fd_, 0, 0, POSIX_FADV_SEQUENTIAL);
- break;
- case WILLNEED:
- posix_fadvise(fd_, 0, 0, POSIX_FADV_WILLNEED);
- break;
- case DONTNEED:
- posix_fadvise(fd_, 0, 0, POSIX_FADV_DONTNEED);
- break;
- default:
- assert(false);
- break;
- }
- }
-
- virtual Status InvalidateCache(size_t offset, size_t length) {
- // free OS pages
- int ret = posix_fadvise(fd_, offset, length, POSIX_FADV_DONTNEED);
- if (ret == 0) {
- return Status::OK();
- }
- return IOError(filename_, errno);
- }
-};
-
-// mmap() based random-access
-class PosixMmapReadableFile: public RandomAccessFile {
- private:
- int fd_;
- std::string filename_;
- void* mmapped_region_;
- size_t length_;
-
- public:
- // base[0,length-1] contains the mmapped contents of the file.
- PosixMmapReadableFile(const int fd, const std::string& fname,
- void* base, size_t length,
- const EnvOptions& options)
- : fd_(fd), filename_(fname), mmapped_region_(base), length_(length) {
- assert(options.use_mmap_reads);
- assert(options.use_os_buffer);
- }
- virtual ~PosixMmapReadableFile() { munmap(mmapped_region_, length_); }
-
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- Status s;
- if (offset + n > length_) {
- *result = Slice();
- s = IOError(filename_, EINVAL);
- } else {
- *result = Slice(reinterpret_cast<char*>(mmapped_region_) + offset, n);
- }
- return s;
- }
- virtual Status InvalidateCache(size_t offset, size_t length) {
- // free OS pages
- int ret = posix_fadvise(fd_, offset, length, POSIX_FADV_DONTNEED);
- if (ret == 0) {
- return Status::OK();
- }
- return IOError(filename_, errno);
- }
-};
-
-// We preallocate up to an extra megabyte and use memcpy to append new
-// data to the file. This is safe since we either properly close the
-// file before reading from it, or for log files, the reading code
-// knows enough to skip zero suffixes.
-class PosixMmapFile : public WritableFile {
- private:
- std::string filename_;
- int fd_;
- size_t page_size_;
- size_t map_size_; // How much extra memory to map at a time
- char* base_; // The mapped region
- char* limit_; // Limit of the mapped region
- char* dst_; // Where to write next (in range [base_,limit_])
- char* last_sync_; // Where have we synced up to
- uint64_t file_offset_; // Offset of base_ in file
-
- // Have we done an munmap of unsynced data?
- bool pending_sync_;
-
- // Roundup x to a multiple of y
- static size_t Roundup(size_t x, size_t y) {
- return ((x + y - 1) / y) * y;
- }
-
- size_t TruncateToPageBoundary(size_t s) {
- s -= (s & (page_size_ - 1));
- assert((s % page_size_) == 0);
- return s;
- }
-
- bool UnmapCurrentRegion() {
- bool result = true;
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- if (base_ != nullptr) {
- if (last_sync_ < limit_) {
- // Defer syncing this data until next Sync() call, if any
- pending_sync_ = true;
- }
- if (munmap(base_, limit_ - base_) != 0) {
- result = false;
- }
- file_offset_ += limit_ - base_;
- base_ = nullptr;
- limit_ = nullptr;
- last_sync_ = nullptr;
- dst_ = nullptr;
-
- // Increase the amount we map the next time, but capped at 1MB
- if (map_size_ < (1<<20)) {
- map_size_ *= 2;
- }
- }
- return result;
- }
-
- Status MapNewRegion() {
- assert(base_ == nullptr);
-
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- int alloc_status = posix_fallocate(fd_, file_offset_, map_size_);
- if (alloc_status != 0) {
- return Status::IOError("Error allocating space to file : " + filename_ +
- "Error : " + strerror(alloc_status));
- }
-
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- void* ptr = mmap(nullptr, map_size_, PROT_READ | PROT_WRITE, MAP_SHARED,
- fd_, file_offset_);
- if (ptr == MAP_FAILED) {
- return Status::IOError("MMap failed on " + filename_);
- }
-
- TEST_KILL_RANDOM(rocksdb_kill_odds);
-
- base_ = reinterpret_cast<char*>(ptr);
- limit_ = base_ + map_size_;
- dst_ = base_;
- last_sync_ = base_;
- return Status::OK();
- }
-
- public:
- PosixMmapFile(const std::string& fname, int fd, size_t page_size,
- const EnvOptions& options)
- : filename_(fname),
- fd_(fd),
- page_size_(page_size),
- map_size_(Roundup(65536, page_size)),
- base_(nullptr),
- limit_(nullptr),
- dst_(nullptr),
- last_sync_(nullptr),
- file_offset_(0),
- pending_sync_(false) {
- assert((page_size & (page_size - 1)) == 0);
- assert(options.use_mmap_writes);
- }
-
-
- ~PosixMmapFile() {
- if (fd_ >= 0) {
- PosixMmapFile::Close();
- }
- }
-
- virtual Status Append(const Slice& data) {
- const char* src = data.data();
- size_t left = data.size();
- TEST_KILL_RANDOM(rocksdb_kill_odds * REDUCE_ODDS);
- PrepareWrite(GetFileSize(), left);
- while (left > 0) {
- assert(base_ <= dst_);
- assert(dst_ <= limit_);
- size_t avail = limit_ - dst_;
- if (avail == 0) {
- if (UnmapCurrentRegion()) {
- Status s = MapNewRegion();
- if (!s.ok()) {
- return s;
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- }
- }
-
- size_t n = (left <= avail) ? left : avail;
- memcpy(dst_, src, n);
- dst_ += n;
- src += n;
- left -= n;
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- return Status::OK();
- }
-
- virtual Status Close() {
- Status s;
- size_t unused = limit_ - dst_;
-
- TEST_KILL_RANDOM(rocksdb_kill_odds);
-
- if (!UnmapCurrentRegion()) {
- s = IOError(filename_, errno);
- } else if (unused > 0) {
- // Trim the extra space at the end of the file
- if (ftruncate(fd_, file_offset_ - unused) < 0) {
- s = IOError(filename_, errno);
- }
- }
-
- TEST_KILL_RANDOM(rocksdb_kill_odds);
-
- if (close(fd_) < 0) {
- if (s.ok()) {
- s = IOError(filename_, errno);
- }
- }
-
- fd_ = -1;
- base_ = nullptr;
- limit_ = nullptr;
- return s;
- }
-
- virtual Status Flush() {
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- return Status::OK();
- }
-
- virtual Status Sync() {
- Status s;
-
- if (pending_sync_) {
- // Some unmapped data was not synced
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- pending_sync_ = false;
- if (fdatasync(fd_) < 0) {
- s = IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds * REDUCE_ODDS);
- }
-
- if (dst_ > last_sync_) {
- // Find the beginnings of the pages that contain the first and last
- // bytes to be synced.
- size_t p1 = TruncateToPageBoundary(last_sync_ - base_);
- size_t p2 = TruncateToPageBoundary(dst_ - base_ - 1);
- last_sync_ = dst_;
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- if (msync(base_ + p1, p2 - p1 + page_size_, MS_SYNC) < 0) {
- s = IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- }
-
- return s;
- }
-
- /**
- * Flush data as well as metadata to stable storage.
- */
- virtual Status Fsync() {
- if (pending_sync_) {
- // Some unmapped data was not synced
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- pending_sync_ = false;
- if (fsync(fd_) < 0) {
- return IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- }
- // This invocation to Sync will not issue the call to
- // fdatasync because pending_sync_ has already been cleared.
- return Sync();
- }
-
- /**
- * Get the size of valid data in the file. This will not match the
- * size that is returned from the filesystem because we use mmap
- * to extend file by map_size every time.
- */
- virtual uint64_t GetFileSize() {
- size_t used = dst_ - base_;
- return file_offset_ + used;
- }
-
- virtual Status InvalidateCache(size_t offset, size_t length) {
- // free OS pages
- int ret = posix_fadvise(fd_, offset, length, POSIX_FADV_DONTNEED);
- if (ret == 0) {
- return Status::OK();
- }
- return IOError(filename_, errno);
- }
-
-#ifdef OS_LINUX
- virtual Status Allocate(off_t offset, off_t len) {
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- if (!fallocate(fd_, FALLOC_FL_KEEP_SIZE, offset, len)) {
- return Status::OK();
- } else {
- return IOError(filename_, errno);
- }
- }
-#endif
-};
-
-// Use posix write to write data to a file.
-class PosixWritableFile : public WritableFile {
- private:
- const std::string filename_;
- int fd_;
- size_t cursize_; // current size of cached data in buf_
- size_t capacity_; // max size of buf_
- unique_ptr<char[]> buf_; // a buffer to cache writes
- uint64_t filesize_;
- bool pending_sync_;
- bool pending_fsync_;
- uint64_t last_sync_size_;
- uint64_t bytes_per_sync_;
-
- public:
- PosixWritableFile(const std::string& fname, int fd, size_t capacity,
- const EnvOptions& options) :
- filename_(fname),
- fd_(fd),
- cursize_(0),
- capacity_(capacity),
- buf_(new char[capacity]),
- filesize_(0),
- pending_sync_(false),
- pending_fsync_(false),
- last_sync_size_(0),
- bytes_per_sync_(options.bytes_per_sync) {
- assert(!options.use_mmap_writes);
- }
-
- ~PosixWritableFile() {
- if (fd_ >= 0) {
- PosixWritableFile::Close();
- }
- }
-
- virtual Status Append(const Slice& data) {
- const char* src = data.data();
- size_t left = data.size();
- Status s;
- pending_sync_ = true;
- pending_fsync_ = true;
-
- TEST_KILL_RANDOM(rocksdb_kill_odds * REDUCE_ODDS2);
-
- PrepareWrite(GetFileSize(), left);
- // if there is no space in the cache, then flush
- if (cursize_ + left > capacity_) {
- s = Flush();
- if (!s.ok()) {
- return s;
- }
- // Increase the buffer size, but capped at 1MB
- if (capacity_ < (1<<20)) {
- capacity_ *= 2;
- buf_.reset(new char[capacity_]);
- }
- assert(cursize_ == 0);
- }
-
- // if the write fits into the cache, then write to cache
- // otherwise do a write() syscall to write to OS buffers.
- if (cursize_ + left <= capacity_) {
- memcpy(buf_.get()+cursize_, src, left);
- cursize_ += left;
- } else {
- while (left != 0) {
- ssize_t done = write(fd_, src, left);
- if (done < 0) {
- return IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
-
- left -= done;
- src += done;
- }
- }
- filesize_ += data.size();
- return Status::OK();
- }
-
- virtual Status Close() {
- Status s;
- s = Flush(); // flush cache to OS
- if (!s.ok()) {
- }
-
- TEST_KILL_RANDOM(rocksdb_kill_odds);
-
- if (close(fd_) < 0) {
- if (s.ok()) {
- s = IOError(filename_, errno);
- }
- }
- fd_ = -1;
- return s;
- }
-
- // write out the cached data to the OS cache
- virtual Status Flush() {
- TEST_KILL_RANDOM(rocksdb_kill_odds * REDUCE_ODDS2);
- size_t left = cursize_;
- char* src = buf_.get();
- while (left != 0) {
- ssize_t done = write(fd_, src, left);
- if (done < 0) {
- return IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds * REDUCE_ODDS2);
- left -= done;
- src += done;
- }
- cursize_ = 0;
-
- // sync OS cache to disk for every bytes_per_sync_
- // TODO: give log file and sst file different options (log
- // files could be potentially cached in OS for their whole
- // life time, thus we might not want to flush at all).
- if (bytes_per_sync_ &&
- filesize_ - last_sync_size_ >= bytes_per_sync_) {
- RangeSync(last_sync_size_, filesize_ - last_sync_size_);
- last_sync_size_ = filesize_;
- }
-
- return Status::OK();
- }
-
- virtual Status Sync() {
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- if (pending_sync_ && fdatasync(fd_) < 0) {
- return IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- pending_sync_ = false;
- return Status::OK();
- }
-
- virtual Status Fsync() {
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- if (pending_fsync_ && fsync(fd_) < 0) {
- return IOError(filename_, errno);
- }
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- pending_fsync_ = false;
- pending_sync_ = false;
- return Status::OK();
- }
-
- virtual uint64_t GetFileSize() {
- return filesize_;
- }
-
- virtual Status InvalidateCache(size_t offset, size_t length) {
- // free OS pages
- int ret = posix_fadvise(fd_, offset, length, POSIX_FADV_DONTNEED);
- if (ret == 0) {
- return Status::OK();
- }
- return IOError(filename_, errno);
- }
-
-#ifdef OS_LINUX
- virtual Status Allocate(off_t offset, off_t len) {
- TEST_KILL_RANDOM(rocksdb_kill_odds);
- if (!fallocate(fd_, FALLOC_FL_KEEP_SIZE, offset, len)) {
- return Status::OK();
- } else {
- return IOError(filename_, errno);
- }
- }
-
- virtual Status RangeSync(off64_t offset, off64_t nbytes) {
- if (sync_file_range(fd_, offset, nbytes, SYNC_FILE_RANGE_WRITE) == 0) {
- return Status::OK();
- } else {
- return IOError(filename_, errno);
- }
- }
- virtual size_t GetUniqueId(char* id, size_t max_size) const {
- return GetUniqueIdFromFile(fd_, id, max_size);
- }
-#endif
-};
-
-class PosixRandomRWFile : public RandomRWFile {
- private:
- const std::string filename_;
- int fd_;
- bool pending_sync_;
- bool pending_fsync_;
-
- public:
- PosixRandomRWFile(const std::string& fname, int fd,
- const EnvOptions& options) :
- filename_(fname),
- fd_(fd),
- pending_sync_(false),
- pending_fsync_(false) {
- assert(!options.use_mmap_writes && !options.use_mmap_reads);
- }
-
- ~PosixRandomRWFile() {
- if (fd_ >= 0) {
- Close();
- }
- }
-
- virtual Status Write(uint64_t offset, const Slice& data) {
- const char* src = data.data();
- size_t left = data.size();
- Status s;
- pending_sync_ = true;
- pending_fsync_ = true;
-
- while (left != 0) {
- ssize_t done = pwrite(fd_, src, left, offset);
- if (done < 0) {
- return IOError(filename_, errno);
- }
-
- left -= done;
- src += done;
- offset += done;
- }
-
- return Status::OK();
- }
-
- virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
- Status s;
- ssize_t r = pread(fd_, scratch, n, static_cast<off_t>(offset));
- *result = Slice(scratch, (r < 0) ? 0 : r);
- if (r < 0) {
- s = IOError(filename_, errno);
- }
- return s;
- }
-
- virtual Status Close() {
- Status s = Status::OK();
- if (fd_ >= 0 && close(fd_) < 0) {
- s = IOError(filename_, errno);
- }
- fd_ = -1;
- return s;
- }
-
- virtual Status Sync() {
- if (pending_sync_ && fdatasync(fd_) < 0) {
- return IOError(filename_, errno);
- }
- pending_sync_ = false;
- return Status::OK();
- }
-
- virtual Status Fsync() {
- if (pending_fsync_ && fsync(fd_) < 0) {
- return IOError(filename_, errno);
- }
- pending_fsync_ = false;
- pending_sync_ = false;
- return Status::OK();
- }
-
-#ifdef OS_LINUX
- virtual Status Allocate(off_t offset, off_t len) {
- if (!fallocate(fd_, FALLOC_FL_KEEP_SIZE, offset, len)) {
- return Status::OK();
- } else {
- return IOError(filename_, errno);
- }
- }
-#endif
-};
-
-static int LockOrUnlock(const std::string& fname, int fd, bool lock) {
- mutex_lockedFiles.Lock();
- if (lock) {
- // If it already exists in the lockedFiles set, then it is already locked,
- // and fail this lock attempt. Otherwise, insert it into lockedFiles.
- // This check is needed because fcntl() does not detect lock conflict
- // if the fcntl is issued by the same thread that earlier acquired
- // this lock.
- if (lockedFiles.insert(fname).second == false) {
- mutex_lockedFiles.Unlock();
- errno = ENOLCK;
- return -1;
- }
- } else {
- // If we are unlocking, then verify that we had locked it earlier,
- // it should already exist in lockedFiles. Remove it from lockedFiles.
- if (lockedFiles.erase(fname) != 1) {
- mutex_lockedFiles.Unlock();
- errno = ENOLCK;
- return -1;
- }
- }
- errno = 0;
- struct flock f;
- memset(&f, 0, sizeof(f));
- f.l_type = (lock ? F_WRLCK : F_UNLCK);
- f.l_whence = SEEK_SET;
- f.l_start = 0;
- f.l_len = 0; // Lock/unlock entire file
- int value = fcntl(fd, F_SETLK, &f);
- if (value == -1 && lock) {
- // if there is an error in locking, then remove the pathname from lockedfiles
- lockedFiles.erase(fname);
- }
- mutex_lockedFiles.Unlock();
- return value;
-}
-
-class PosixFileLock : public FileLock {
- public:
- int fd_;
- std::string filename;
-};
-
-
-namespace {
-void PthreadCall(const char* label, int result) {
- if (result != 0) {
- fprintf(stderr, "pthread %s: %s\n", label, strerror(result));
- exit(1);
- }
-}
-}
-
-class PosixEnv : public Env {
- public:
- PosixEnv();
-
- virtual ~PosixEnv(){
- for (const auto tid : threads_to_join_) {
- pthread_join(tid, nullptr);
- }
- }
-
- void SetFD_CLOEXEC(int fd, const EnvOptions* options) {
- if ((options == nullptr || options->set_fd_cloexec) && fd > 0) {
- fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
- }
- }
-
- virtual Status NewSequentialFile(const std::string& fname,
- unique_ptr<SequentialFile>* result,
- const EnvOptions& options) {
- result->reset();
- FILE* f = fopen(fname.c_str(), "r");
- if (f == nullptr) {
- *result = nullptr;
- return IOError(fname, errno);
- } else {
- int fd = fileno(f);
- SetFD_CLOEXEC(fd, &options);
- result->reset(new PosixSequentialFile(fname, f, options));
- return Status::OK();
- }
- }
-
- virtual Status NewRandomAccessFile(const std::string& fname,
- unique_ptr<RandomAccessFile>* result,
- const EnvOptions& options) {
- result->reset();
- Status s;
- int fd = open(fname.c_str(), O_RDONLY);
- SetFD_CLOEXEC(fd, &options);
- if (fd < 0) {
- s = IOError(fname, errno);
- } else if (options.use_mmap_reads && sizeof(void*) >= 8) {
- // Use of mmap for random reads has been removed because it
- // kills performance when storage is fast.
- // Use mmap when virtual address-space is plentiful.
- uint64_t size;
- s = GetFileSize(fname, &size);
- if (s.ok()) {
- void* base = mmap(nullptr, size, PROT_READ, MAP_SHARED, fd, 0);
- if (base != MAP_FAILED) {
- result->reset(new PosixMmapReadableFile(fd, fname, base,
- size, options));
- } else {
- s = IOError(fname, errno);
- }
- }
- close(fd);
- } else {
- result->reset(new PosixRandomAccessFile(fname, fd, options));
- }
- return s;
- }
-
- virtual Status NewWritableFile(const std::string& fname,
- unique_ptr<WritableFile>* result,
- const EnvOptions& options) {
- result->reset();
- Status s;
- const int fd = open(fname.c_str(), O_CREAT | O_RDWR | O_TRUNC, 0644);
- if (fd < 0) {
- s = IOError(fname, errno);
- } else {
- SetFD_CLOEXEC(fd, &options);
- if (options.use_mmap_writes) {
- if (!checkedDiskForMmap_) {
- // this will be executed once in the program's lifetime.
- // do not use mmapWrite on non ext-3/xfs/tmpfs systems.
- if (!SupportsFastAllocate(fname)) {
- forceMmapOff = true;
- }
- checkedDiskForMmap_ = true;
- }
- }
- if (options.use_mmap_writes && !forceMmapOff) {
- result->reset(new PosixMmapFile(fname, fd, page_size_, options));
- } else {
- result->reset(new PosixWritableFile(fname, fd, 65536, options));
- }
- }
- return s;
- }
-
- virtual Status NewRandomRWFile(const std::string& fname,
- unique_ptr<RandomRWFile>* result,
- const EnvOptions& options) {
- result->reset();
- Status s;
- const int fd = open(fname.c_str(), O_CREAT | O_RDWR, 0644);
- if (fd < 0) {
- s = IOError(fname, errno);
- } else {
- SetFD_CLOEXEC(fd, &options);
- // no support for mmap yet
- if (options.use_mmap_writes || options.use_mmap_reads) {
- return Status::NotSupported("No support for mmap read/write yet");
- }
- result->reset(new PosixRandomRWFile(fname, fd, options));
- }
- return s;
- }
-
- virtual bool FileExists(const std::string& fname) {
- return access(fname.c_str(), F_OK) == 0;
- }
-
- virtual Status GetChildren(const std::string& dir,
- std::vector<std::string>* result) {
- result->clear();
- DIR* d = opendir(dir.c_str());
- if (d == nullptr) {
- return IOError(dir, errno);
- }
- struct dirent* entry;
- while ((entry = readdir(d)) != nullptr) {
- result->push_back(entry->d_name);
- }
- closedir(d);
- return Status::OK();
- }
-
- virtual Status DeleteFile(const std::string& fname) {
- Status result;
- if (unlink(fname.c_str()) != 0) {
- result = IOError(fname, errno);
- }
- return result;
- };
-
- virtual Status CreateDir(const std::string& name) {
- Status result;
- if (mkdir(name.c_str(), 0755) != 0) {
- result = IOError(name, errno);
- }
- return result;
- };
-
- virtual Status CreateDirIfMissing(const std::string& name) {
- Status result;
- if (mkdir(name.c_str(), 0755) != 0) {
- if (errno != EEXIST) {
- result = IOError(name, errno);
- } else if (!DirExists(name)) { // Check that name is actually a
- // directory.
- // Message is taken from mkdir
- result = Status::IOError("`"+name+"' exists but is not a directory");
- }
- }
- return result;
- };
-
- virtual Status DeleteDir(const std::string& name) {
- Status result;
- if (rmdir(name.c_str()) != 0) {
- result = IOError(name, errno);
- }
- return result;
- };
-
- virtual Status GetFileSize(const std::string& fname, uint64_t* size) {
- Status s;
- struct stat sbuf;
- if (stat(fname.c_str(), &sbuf) != 0) {
- *size = 0;
- s = IOError(fname, errno);
- } else {
- *size = sbuf.st_size;
- }
- return s;
- }
-
- virtual Status GetFileModificationTime(const std::string& fname,
- uint64_t* file_mtime) {
- struct stat s;
- if (stat(fname.c_str(), &s) !=0) {
- return IOError(fname, errno);
- }
- *file_mtime = static_cast<uint64_t>(s.st_mtime);
- return Status::OK();
- }
- virtual Status RenameFile(const std::string& src, const std::string& target) {
- Status result;
- if (rename(src.c_str(), target.c_str()) != 0) {
- result = IOError(src, errno);
- }
- return result;
- }
-
- virtual Status LockFile(const std::string& fname, FileLock** lock) {
- *lock = nullptr;
- Status result;
- int fd = open(fname.c_str(), O_RDWR | O_CREAT, 0644);
- if (fd < 0) {
- result = IOError(fname, errno);
- } else if (LockOrUnlock(fname, fd, true) == -1) {
- result = IOError("lock " + fname, errno);
- close(fd);
- } else {
- SetFD_CLOEXEC(fd, nullptr);
- PosixFileLock* my_lock = new PosixFileLock;
- my_lock->fd_ = fd;
- my_lock->filename = fname;
- *lock = my_lock;
- }
- return result;
- }
-
- virtual Status UnlockFile(FileLock* lock) {
- PosixFileLock* my_lock = reinterpret_cast<PosixFileLock*>(lock);
- Status result;
- if (LockOrUnlock(my_lock->filename, my_lock->fd_, false) == -1) {
- result = IOError("unlock", errno);
- }
- close(my_lock->fd_);
- delete my_lock;
- return result;
- }
-
- virtual void Schedule(void (*function)(void*), void* arg, Priority pri = LOW);
-
- virtual void StartThread(void (*function)(void* arg), void* arg);
-
- virtual Status GetTestDirectory(std::string* result) {
- const char* env = getenv("TEST_TMPDIR");
- if (env && env[0] != '\0') {
- *result = env;
- } else {
- char buf[100];
- snprintf(buf, sizeof(buf), "/tmp/rocksdbtest-%d", int(geteuid()));
- *result = buf;
- }
- // Directory may already exist
- CreateDir(*result);
- return Status::OK();
- }
-
- static uint64_t gettid() {
- pthread_t tid = pthread_self();
- uint64_t thread_id = 0;
- memcpy(&thread_id, &tid, std::min(sizeof(thread_id), sizeof(tid)));
- return thread_id;
- }
-
- virtual Status NewLogger(const std::string& fname,
- shared_ptr<Logger>* result) {
- FILE* f = fopen(fname.c_str(), "w");
- if (f == nullptr) {
- result->reset();
- return IOError(fname, errno);
- } else {
- int fd = fileno(f);
- SetFD_CLOEXEC(fd, nullptr);
- result->reset(new PosixLogger(f, &PosixEnv::gettid, this));
- return Status::OK();
- }
- }
-
- virtual uint64_t NowMicros() {
- struct timeval tv;
- gettimeofday(&tv, nullptr);
- return static_cast<uint64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
- }
-
- virtual uint64_t NowNanos() {
- struct timespec ts;
- clock_gettime(CLOCK_MONOTONIC, &ts);
- return static_cast<uint64_t>(ts.tv_sec) * 1000000000 + ts.tv_nsec;
- }
-
- virtual void SleepForMicroseconds(int micros) {
- usleep(micros);
- }
-
- virtual Status GetHostName(char* name, uint64_t len) {
- int ret = gethostname(name, len);
- if (ret < 0) {
- if (errno == EFAULT || errno == EINVAL)
- return Status::InvalidArgument(strerror(errno));
- else
- return IOError("GetHostName", errno);
- }
- return Status::OK();
- }
-
- virtual Status GetCurrentTime(int64_t* unix_time) {
- time_t ret = time(nullptr);
- if (ret == (time_t) -1) {
- return IOError("GetCurrentTime", errno);
- }
- *unix_time = (int64_t) ret;
- return Status::OK();
- }
-
- virtual Status GetAbsolutePath(const std::string& db_path,
- std::string* output_path) {
- if (db_path.find('/') == 0) {
- *output_path = db_path;
- return Status::OK();
- }
-
- char the_path[256];
- char* ret = getcwd(the_path, 256);
- if (ret == nullptr) {
- return Status::IOError(strerror(errno));
- }
-
- *output_path = ret;
- return Status::OK();
- }
-
- // Allow increasing the number of worker threads.
- virtual void SetBackgroundThreads(int num, Priority pri) {
- assert(pri >= Priority::LOW && pri <= Priority::HIGH);
- thread_pools_[pri].SetBackgroundThreads(num);
- }
-
- virtual std::string TimeToString(uint64_t secondsSince1970) {
- const time_t seconds = (time_t)secondsSince1970;
- struct tm t;
- int maxsize = 64;
- std::string dummy;
- dummy.reserve(maxsize);
- dummy.resize(maxsize);
- char* p = &dummy[0];
- localtime_r(&seconds, &t);
- snprintf(p, maxsize,
- "%04d/%02d/%02d-%02d:%02d:%02d ",
- t.tm_year + 1900,
- t.tm_mon + 1,
- t.tm_mday,
- t.tm_hour,
- t.tm_min,
- t.tm_sec);
- return dummy;
- }
-
- private:
- bool checkedDiskForMmap_;
- bool forceMmapOff; // do we override Env options?
-
-
- // Returns true iff the named directory exists and is a directory.
- virtual bool DirExists(const std::string& dname) {
- struct stat statbuf;
- if (stat(dname.c_str(), &statbuf) == 0) {
- return S_ISDIR(statbuf.st_mode);
- }
- return false; // stat() failed return false
- }
-
- bool SupportsFastAllocate(const std::string& path) {
- struct statfs s;
- if (statfs(path.c_str(), &s)){
- return false;
- }
- switch (s.f_type) {
- case EXT4_SUPER_MAGIC:
- return true;
- case XFS_SUPER_MAGIC:
- return true;
- case TMPFS_MAGIC:
- return true;
- default:
- return false;
- }
- }
-
- size_t page_size_;
-
-
- class ThreadPool {
- public:
-
- ThreadPool() :
- total_threads_limit_(1),
- bgthreads_(0),
- queue_(),
- exit_all_threads_(false) {
- PthreadCall("mutex_init", pthread_mutex_init(&mu_, nullptr));
- PthreadCall("cvar_init", pthread_cond_init(&bgsignal_, nullptr));
- }
-
- ~ThreadPool() {
- PthreadCall("lock", pthread_mutex_lock(&mu_));
- assert(!exit_all_threads_);
- exit_all_threads_ = true;
- PthreadCall("signalall", pthread_cond_broadcast(&bgsignal_));
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
- for (const auto tid : bgthreads_) {
- pthread_join(tid, nullptr);
- }
- }
-
- void BGThread() {
- while (true) {
- // Wait until there is an item that is ready to run
- PthreadCall("lock", pthread_mutex_lock(&mu_));
- while (queue_.empty() && !exit_all_threads_) {
- PthreadCall("wait", pthread_cond_wait(&bgsignal_, &mu_));
- }
- if (exit_all_threads_) { // mechanism to let BG threads exit safely
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
- break;
- }
- void (*function)(void*) = queue_.front().function;
- void* arg = queue_.front().arg;
- queue_.pop_front();
-
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
- (*function)(arg);
- }
- }
-
- static void* BGThreadWrapper(void* arg) {
- reinterpret_cast<ThreadPool*>(arg)->BGThread();
- return nullptr;
- }
-
- void SetBackgroundThreads(int num) {
- PthreadCall("lock", pthread_mutex_lock(&mu_));
- if (num > total_threads_limit_) {
- total_threads_limit_ = num;
- }
- assert(total_threads_limit_ > 0);
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
- }
-
- void Schedule(void (*function)(void*), void* arg) {
- PthreadCall("lock", pthread_mutex_lock(&mu_));
-
- if (exit_all_threads_) {
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
- return;
- }
- // Start background thread if necessary
- while ((int)bgthreads_.size() < total_threads_limit_) {
- pthread_t t;
- PthreadCall(
- "create thread",
- pthread_create(&t,
- nullptr,
- &ThreadPool::BGThreadWrapper,
- this));
- fprintf(stdout, "Created bg thread 0x%lx\n", t);
- bgthreads_.push_back(t);
- }
-
- // Add to priority queue
- queue_.push_back(BGItem());
- queue_.back().function = function;
- queue_.back().arg = arg;
-
- // always wake up at least one waiting thread.
- PthreadCall("signal", pthread_cond_signal(&bgsignal_));
-
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
- }
-
- private:
- // Entry per Schedule() call
- struct BGItem { void* arg; void (*function)(void*); };
- typedef std::deque<BGItem> BGQueue;
-
- pthread_mutex_t mu_;
- pthread_cond_t bgsignal_;
- int total_threads_limit_;
- std::vector<pthread_t> bgthreads_;
- BGQueue queue_;
- bool exit_all_threads_;
- };
-
- std::vector<ThreadPool> thread_pools_;
-
- pthread_mutex_t mu_;
- std::vector<pthread_t> threads_to_join_;
-
-};
-
-PosixEnv::PosixEnv() : checkedDiskForMmap_(false),
- forceMmapOff(false),
- page_size_(getpagesize()),
- thread_pools_(Priority::TOTAL) {
- PthreadCall("mutex_init", pthread_mutex_init(&mu_, nullptr));
-}
-
-void PosixEnv::Schedule(void (*function)(void*), void* arg, Priority pri) {
- assert(pri >= Priority::LOW && pri <= Priority::HIGH);
- thread_pools_[pri].Schedule(function, arg);
-}
-
-namespace {
-struct StartThreadState {
- void (*user_function)(void*);
- void* arg;
-};
-}
-static void* StartThreadWrapper(void* arg) {
- StartThreadState* state = reinterpret_cast<StartThreadState*>(arg);
- state->user_function(state->arg);
- delete state;
- return nullptr;
-}
-
-void PosixEnv::StartThread(void (*function)(void* arg), void* arg) {
- pthread_t t;
- StartThreadState* state = new StartThreadState;
- state->user_function = function;
- state->arg = arg;
- PthreadCall("start thread",
- pthread_create(&t, nullptr, &StartThreadWrapper, state));
- PthreadCall("lock", pthread_mutex_lock(&mu_));
- threads_to_join_.push_back(t);
- PthreadCall("unlock", pthread_mutex_unlock(&mu_));
-}
-
-} // namespace
-
-std::string Env::GenerateUniqueId() {
- std::string uuid_file = "/proc/sys/kernel/random/uuid";
- if (FileExists(uuid_file)) {
- std::string uuid;
- Status s = ReadFileToString(this, uuid_file, &uuid);
- if (s.ok()) {
- return uuid;
- }
- }
- // Could not read uuid_file - generate uuid using "nanos-random"
- Random64 r(time(nullptr));
- uint64_t random_uuid_portion =
- r.Uniform(std::numeric_limits<uint64_t>::max());
- uint64_t nanos_uuid_portion = NowNanos();
- char uuid2[200];
- snprintf(uuid2, 200, "%lx-%lx", nanos_uuid_portion, random_uuid_portion);
- return uuid2;
-}
-
-Env* Env::Default() {
- static PosixEnv default_env;
- return &default_env;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-
-#include <iostream>
-#include <unordered_set>
-
-#include "rocksdb/env.h"
-#include "port/port.h"
-#include "util/coding.h"
-#include "util/mutexlock.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-static const int kDelayMicros = 100000;
-
-class EnvPosixTest {
- private:
- port::Mutex mu_;
- std::string events_;
-
- public:
- Env* env_;
- EnvPosixTest() : env_(Env::Default()) { }
-};
-
-static void SetBool(void* ptr) {
- reinterpret_cast<port::AtomicPointer*>(ptr)->NoBarrier_Store(ptr);
-}
-
-TEST(EnvPosixTest, RunImmediately) {
- port::AtomicPointer called (nullptr);
- env_->Schedule(&SetBool, &called);
- Env::Default()->SleepForMicroseconds(kDelayMicros);
- ASSERT_TRUE(called.NoBarrier_Load() != nullptr);
-}
-
-TEST(EnvPosixTest, RunMany) {
- port::AtomicPointer last_id (nullptr);
-
- struct CB {
- port::AtomicPointer* last_id_ptr; // Pointer to shared slot
- uintptr_t id; // Order# for the execution of this callback
-
- CB(port::AtomicPointer* p, int i) : last_id_ptr(p), id(i) { }
-
- static void Run(void* v) {
- CB* cb = reinterpret_cast<CB*>(v);
- void* cur = cb->last_id_ptr->NoBarrier_Load();
- ASSERT_EQ(cb->id-1, reinterpret_cast<uintptr_t>(cur));
- cb->last_id_ptr->Release_Store(reinterpret_cast<void*>(cb->id));
- }
- };
-
- // Schedule in different order than start time
- CB cb1(&last_id, 1);
- CB cb2(&last_id, 2);
- CB cb3(&last_id, 3);
- CB cb4(&last_id, 4);
- env_->Schedule(&CB::Run, &cb1);
- env_->Schedule(&CB::Run, &cb2);
- env_->Schedule(&CB::Run, &cb3);
- env_->Schedule(&CB::Run, &cb4);
-
- Env::Default()->SleepForMicroseconds(kDelayMicros);
- void* cur = last_id.Acquire_Load();
- ASSERT_EQ(4U, reinterpret_cast<uintptr_t>(cur));
-}
-
-struct State {
- port::Mutex mu;
- int val;
- int num_running;
-};
-
-static void ThreadBody(void* arg) {
- State* s = reinterpret_cast<State*>(arg);
- s->mu.Lock();
- s->val += 1;
- s->num_running -= 1;
- s->mu.Unlock();
-}
-
-TEST(EnvPosixTest, StartThread) {
- State state;
- state.val = 0;
- state.num_running = 3;
- for (int i = 0; i < 3; i++) {
- env_->StartThread(&ThreadBody, &state);
- }
- while (true) {
- state.mu.Lock();
- int num = state.num_running;
- state.mu.Unlock();
- if (num == 0) {
- break;
- }
- Env::Default()->SleepForMicroseconds(kDelayMicros);
- }
- ASSERT_EQ(state.val, 3);
-}
-
-TEST(EnvPosixTest, TwoPools) {
-
- class CB {
- public:
- CB(const std::string& pool_name, int pool_size)
- : mu_(),
- num_running_(0),
- num_finished_(0),
- pool_size_(pool_size),
- pool_name_(pool_name) { }
-
- static void Run(void* v) {
- CB* cb = reinterpret_cast<CB*>(v);
- cb->Run();
- }
-
- void Run() {
- {
- MutexLock l(&mu_);
- num_running_++;
- std::cout << "Pool " << pool_name_ << ": "
- << num_running_ << " running threads.\n";
- // make sure we don't have more than pool_size_ jobs running.
- ASSERT_LE(num_running_, pool_size_);
- }
-
- // sleep for 1 sec
- Env::Default()->SleepForMicroseconds(1000000);
-
- {
- MutexLock l(&mu_);
- num_running_--;
- num_finished_++;
- }
- }
-
- int NumFinished() {
- MutexLock l(&mu_);
- return num_finished_;
- }
-
- private:
- port::Mutex mu_;
- int num_running_;
- int num_finished_;
- int pool_size_;
- std::string pool_name_;
- };
-
- const int kLowPoolSize = 2;
- const int kHighPoolSize = 4;
- const int kJobs = 8;
-
- CB low_pool_job("low", kLowPoolSize);
- CB high_pool_job("high", kHighPoolSize);
-
- env_->SetBackgroundThreads(kLowPoolSize);
- env_->SetBackgroundThreads(kHighPoolSize, Env::Priority::HIGH);
-
- // schedule same number of jobs in each pool
- for (int i = 0; i < kJobs; i++) {
- env_->Schedule(&CB::Run, &low_pool_job);
- env_->Schedule(&CB::Run, &high_pool_job, Env::Priority::HIGH);
- }
-
- // wait for all jobs to finish
- while (low_pool_job.NumFinished() < kJobs ||
- high_pool_job.NumFinished() < kJobs) {
- env_->SleepForMicroseconds(kDelayMicros);
- }
-}
-
-bool IsSingleVarint(const std::string& s) {
- Slice slice(s);
-
- uint64_t v;
- if (!GetVarint64(&slice, &v)) {
- return false;
- }
-
- return slice.size() == 0;
-}
-
-bool IsUniqueIDValid(const std::string& s) {
- return !s.empty() && !IsSingleVarint(s);
-}
-
-const size_t MAX_ID_SIZE = 100;
-char temp_id[MAX_ID_SIZE];
-
-TEST(EnvPosixTest, RandomAccessUniqueID) {
- // Create file.
- const EnvOptions soptions;
- std::string fname = test::TmpDir() + "/" + "testfile";
- unique_ptr<WritableFile> wfile;
- ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions));
-
- unique_ptr<RandomAccessFile> file;
-
- // Get Unique ID
- ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions));
- size_t id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE);
- ASSERT_TRUE(id_size > 0);
- std::string unique_id1(temp_id, id_size);
- ASSERT_TRUE(IsUniqueIDValid(unique_id1));
-
- // Get Unique ID again
- ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions));
- id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE);
- ASSERT_TRUE(id_size > 0);
- std::string unique_id2(temp_id, id_size);
- ASSERT_TRUE(IsUniqueIDValid(unique_id2));
-
- // Get Unique ID again after waiting some time.
- env_->SleepForMicroseconds(1000000);
- ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions));
- id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE);
- ASSERT_TRUE(id_size > 0);
- std::string unique_id3(temp_id, id_size);
- ASSERT_TRUE(IsUniqueIDValid(unique_id3));
-
- // Check IDs are the same.
- ASSERT_EQ(unique_id1, unique_id2);
- ASSERT_EQ(unique_id2, unique_id3);
-
- // Delete the file
- env_->DeleteFile(fname);
-}
-
-// Returns true if any of the strings in ss are the prefix of another string.
-bool HasPrefix(const std::unordered_set<std::string>& ss) {
- for (const std::string& s: ss) {
- if (s.empty()) {
- return true;
- }
- for (size_t i = 1; i < s.size(); ++i) {
- if (ss.count(s.substr(0, i)) != 0) {
- return true;
- }
- }
- }
- return false;
-}
-
-TEST(EnvPosixTest, RandomAccessUniqueIDConcurrent) {
- // Check whether a bunch of concurrently existing files have unique IDs.
- const EnvOptions soptions;
-
- // Create the files
- std::vector<std::string> fnames;
- for (int i = 0; i < 1000; ++i) {
- fnames.push_back(test::TmpDir() + "/" + "testfile" + std::to_string(i));
-
- // Create file.
- unique_ptr<WritableFile> wfile;
- ASSERT_OK(env_->NewWritableFile(fnames[i], &wfile, soptions));
- }
-
- // Collect and check whether the IDs are unique.
- std::unordered_set<std::string> ids;
- for (const std::string fname: fnames) {
- unique_ptr<RandomAccessFile> file;
- std::string unique_id;
- ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions));
- size_t id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE);
- ASSERT_TRUE(id_size > 0);
- unique_id = std::string(temp_id, id_size);
- ASSERT_TRUE(IsUniqueIDValid(unique_id));
-
- ASSERT_TRUE(ids.count(unique_id) == 0);
- ids.insert(unique_id);
- }
-
- // Delete the files
- for (const std::string fname: fnames) {
- ASSERT_OK(env_->DeleteFile(fname));
- }
-
- ASSERT_TRUE(!HasPrefix(ids));
-}
-
-TEST(EnvPosixTest, RandomAccessUniqueIDDeletes) {
- const EnvOptions soptions;
- std::string fname = test::TmpDir() + "/" + "testfile";
-
- // Check that after file is deleted we don't get same ID again in a new file.
- std::unordered_set<std::string> ids;
- for (int i = 0; i < 1000; ++i) {
- // Create file.
- {
- unique_ptr<WritableFile> wfile;
- ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions));
- }
-
- // Get Unique ID
- std::string unique_id;
- {
- unique_ptr<RandomAccessFile> file;
- ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions));
- size_t id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE);
- ASSERT_TRUE(id_size > 0);
- unique_id = std::string(temp_id, id_size);
- }
-
- ASSERT_TRUE(IsUniqueIDValid(unique_id));
- ASSERT_TRUE(ids.count(unique_id) == 0);
- ids.insert(unique_id);
-
- // Delete the file
- ASSERT_OK(env_->DeleteFile(fname));
- }
-
- ASSERT_TRUE(!HasPrefix(ids));
-}
-
-TEST(EnvPosixTest, InvalidateCache) {
- const EnvOptions soptions;
- std::string fname = test::TmpDir() + "/" + "testfile";
-
- // Create file.
- {
- unique_ptr<WritableFile> wfile;
- ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions));
- ASSERT_OK(wfile.get()->Append(Slice("Hello world")));
- ASSERT_OK(wfile.get()->InvalidateCache(0, 0));
- ASSERT_OK(wfile.get()->Close());
- }
-
- // Random Read
- {
- unique_ptr<RandomAccessFile> file;
- char scratch[100];
- Slice result;
- ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions));
- ASSERT_OK(file.get()->Read(0, 11, &result, scratch));
- ASSERT_EQ(memcmp(scratch, "Hello world", 11), 0);
- ASSERT_OK(file.get()->InvalidateCache(0, 11));
- ASSERT_OK(file.get()->InvalidateCache(0, 0));
- }
-
- // Sequential Read
- {
- unique_ptr<SequentialFile> file;
- char scratch[100];
- Slice result;
- ASSERT_OK(env_->NewSequentialFile(fname, &file, soptions));
- ASSERT_OK(file.get()->Read(11, &result, scratch));
- ASSERT_EQ(memcmp(scratch, "Hello world", 11), 0);
- ASSERT_OK(file.get()->InvalidateCache(0, 11));
- ASSERT_OK(file.get()->InvalidateCache(0, 0));
- }
- // Delete the file
- ASSERT_OK(env_->DeleteFile(fname));
-}
-
-TEST(EnvPosixTest, PosixRandomRWFileTest) {
- EnvOptions soptions;
- soptions.use_mmap_writes = soptions.use_mmap_reads = false;
- std::string fname = test::TmpDir() + "/" + "testfile";
-
- unique_ptr<RandomRWFile> file;
- ASSERT_OK(env_->NewRandomRWFile(fname, &file, soptions));
- // If you run the unit test on tmpfs, then tmpfs might not
- // support fallocate. It is still better to trigger that
- // code-path instead of eliminating it completely.
- file.get()->Allocate(0, 10*1024*1024);
- ASSERT_OK(file.get()->Write(100, Slice("Hello world")));
- ASSERT_OK(file.get()->Write(105, Slice("Hello world")));
- ASSERT_OK(file.get()->Sync());
- ASSERT_OK(file.get()->Fsync());
- char scratch[100];
- Slice result;
- ASSERT_OK(file.get()->Read(100, 16, &result, scratch));
- ASSERT_EQ(result.compare("HelloHello world"), 0);
- ASSERT_OK(file.get()->Close());
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "rocksdb/status.h"
-#include "rocksdb/env.h"
-
-#include <vector>
-#include "util/coding.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-class LockTest {
- public:
- static LockTest* current_;
- std::string file_;
- rocksdb::Env* env_;
-
- LockTest() : file_(test::TmpDir() + "/db_testlock_file"),
- env_(rocksdb::Env::Default()) {
- current_ = this;
- }
-
- ~LockTest() {
- }
-
- Status LockFile(FileLock** db_lock) {
- return env_->LockFile(file_, db_lock);
- }
-
- Status UnlockFile(FileLock* db_lock) {
- return env_->UnlockFile(db_lock);
- }
-};
-LockTest* LockTest::current_;
-
-TEST(LockTest, LockBySameThread) {
- FileLock* lock1;
- FileLock* lock2;
-
- // acquire a lock on a file
- ASSERT_OK(LockFile(&lock1));
-
- // re-acquire the lock on the same file. This should fail.
- ASSERT_TRUE(LockFile(&lock2).IsIOError());
-
- // release the lock
- ASSERT_OK(UnlockFile(lock1));
-
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/filter_policy.h"
-
-namespace rocksdb {
-
-FilterPolicy::~FilterPolicy() { }
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <string.h>
-#include "util/coding.h"
-#include "util/hash.h"
-
-namespace rocksdb {
-
-uint32_t Hash(const char* data, size_t n, uint32_t seed) {
- // Similar to murmur hash
- const uint32_t m = 0xc6a4a793;
- const uint32_t r = 24;
- const char* limit = data + n;
- uint32_t h = seed ^ (n * m);
-
- // Pick up four bytes at a time
- while (data + 4 <= limit) {
- uint32_t w = DecodeFixed32(data);
- data += 4;
- h += w;
- h *= m;
- h ^= (h >> 16);
- }
-
- // Pick up remaining bytes
- switch (limit - data) {
- case 3:
- h += data[2] << 16;
- // fall through
- case 2:
- h += data[1] << 8;
- // fall through
- case 1:
- h += data[0];
- h *= m;
- h ^= (h >> r);
- break;
- }
- return h;
-}
-
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Simple hash function used for internal data structures
-
-#pragma once
-#include <stddef.h>
-#include <stdint.h>
-
-namespace rocksdb {
-
-extern uint32_t Hash(const char* data, size_t n, uint32_t seed);
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/arena.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/slice_transform.h"
-#include "port/port.h"
-#include "port/atomic_pointer.h"
-#include "util/murmurhash.h"
-#include "db/skiplist.h"
-
-namespace rocksdb {
-namespace {
-
-class HashSkipListRep : public MemTableRep {
- public:
- HashSkipListRep(MemTableRep::KeyComparator& compare, Arena* arena,
- const SliceTransform* transform, size_t bucket_size);
-
- virtual void Insert(const char* key) override;
-
- virtual bool Contains(const char* key) const override;
-
- virtual size_t ApproximateMemoryUsage() override;
-
- virtual ~HashSkipListRep();
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetIterator() override;
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetIterator(
- const Slice& slice) override;
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetPrefixIterator(
- const Slice& prefix) override;
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetDynamicPrefixIterator()
- override;
-
- private:
- friend class DynamicIterator;
- typedef SkipList<const char*, MemTableRep::KeyComparator&> Bucket;
-
- size_t bucket_size_;
-
- // Maps slices (which are transformed user keys) to buckets of keys sharing
- // the same transform.
- port::AtomicPointer* buckets_;
-
- // The user-supplied transform whose domain is the user keys.
- const SliceTransform* transform_;
-
- MemTableRep::KeyComparator& compare_;
- // immutable after construction
- Arena* const arena_;
-
- inline size_t GetHash(const Slice& slice) const {
- return MurmurHash(slice.data(), slice.size(), 0) % bucket_size_;
- }
- inline Bucket* GetBucket(size_t i) const {
- return static_cast<Bucket*>(buckets_[i].Acquire_Load());
- }
- inline Bucket* GetBucket(const Slice& slice) const {
- return GetBucket(GetHash(slice));
- }
- // Get a bucket from buckets_. If the bucket hasn't been initialized yet,
- // initialize it before returning.
- Bucket* GetInitializedBucket(const Slice& transformed);
-
- class Iterator : public MemTableRep::Iterator {
- public:
- explicit Iterator(Bucket* list, bool own_list = true)
- : list_(list),
- iter_(list),
- own_list_(own_list) {}
-
- virtual ~Iterator() {
- // if we own the list, we should also delete it
- if (own_list_) {
- assert(list_ != nullptr);
- delete list_;
- }
- }
-
- // Returns true iff the iterator is positioned at a valid node.
- virtual bool Valid() const {
- return list_ != nullptr && iter_.Valid();
- }
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- virtual const char* key() const {
- assert(Valid());
- return iter_.key();
- }
-
- // Advances to the next position.
- // REQUIRES: Valid()
- virtual void Next() {
- assert(Valid());
- iter_.Next();
- }
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- virtual void Prev() {
- assert(Valid());
- iter_.Prev();
- }
-
- // Advance to the first entry with a key >= target
- virtual void Seek(const char* target) {
- if (list_ != nullptr) {
- iter_.Seek(target);
- }
- }
-
- // Position at the first entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToFirst() {
- if (list_ != nullptr) {
- iter_.SeekToFirst();
- }
- }
-
- // Position at the last entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToLast() {
- if (list_ != nullptr) {
- iter_.SeekToLast();
- }
- }
- protected:
- void Reset(Bucket* list) {
- if (own_list_) {
- assert(list_ != nullptr);
- delete list_;
- }
- list_ = list;
- iter_.SetList(list);
- own_list_ = false;
- }
- private:
- // if list_ is nullptr, we should NEVER call any methods on iter_
- // if list_ is nullptr, this Iterator is not Valid()
- Bucket* list_;
- Bucket::Iterator iter_;
- // here we track if we own list_. If we own it, we are also
- // responsible for it's cleaning. This is a poor man's shared_ptr
- bool own_list_;
- };
-
- class DynamicIterator : public HashSkipListRep::Iterator {
- public:
- explicit DynamicIterator(const HashSkipListRep& memtable_rep)
- : HashSkipListRep::Iterator(nullptr, false),
- memtable_rep_(memtable_rep) {}
-
- // Advance to the first entry with a key >= target
- virtual void Seek(const char* target) {
- auto transformed = memtable_rep_.transform_->Transform(
- memtable_rep_.UserKey(target));
- Reset(memtable_rep_.GetBucket(transformed));
- HashSkipListRep::Iterator::Seek(target);
- }
-
- // Position at the first entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToFirst() {
- // Prefix iterator does not support total order.
- // We simply set the iterator to invalid state
- Reset(nullptr);
- }
-
- // Position at the last entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToLast() {
- // Prefix iterator does not support total order.
- // We simply set the iterator to invalid state
- Reset(nullptr);
- }
- private:
- // the underlying memtable
- const HashSkipListRep& memtable_rep_;
- };
-
- class EmptyIterator : public MemTableRep::Iterator {
- // This is used when there wasn't a bucket. It is cheaper than
- // instantiating an empty bucket over which to iterate.
- public:
- EmptyIterator() { }
- virtual bool Valid() const {
- return false;
- }
- virtual const char* key() const {
- assert(false);
- return nullptr;
- }
- virtual void Next() { }
- virtual void Prev() { }
- virtual void Seek(const char* target) { }
- virtual void SeekToFirst() { }
- virtual void SeekToLast() { }
- private:
- };
-
- std::shared_ptr<EmptyIterator> empty_iterator_;
-};
-
-HashSkipListRep::HashSkipListRep(MemTableRep::KeyComparator& compare,
- Arena* arena, const SliceTransform* transform, size_t bucket_size)
- : bucket_size_(bucket_size),
- transform_(transform),
- compare_(compare),
- arena_(arena),
- empty_iterator_(std::make_shared<EmptyIterator>()) {
-
- buckets_ = new port::AtomicPointer[bucket_size];
-
- for (size_t i = 0; i < bucket_size_; ++i) {
- buckets_[i].NoBarrier_Store(nullptr);
- }
-}
-
-HashSkipListRep::~HashSkipListRep() {
- delete[] buckets_;
-}
-
-HashSkipListRep::Bucket* HashSkipListRep::GetInitializedBucket(
- const Slice& transformed) {
- size_t hash = GetHash(transformed);
- auto bucket = GetBucket(hash);
- if (bucket == nullptr) {
- auto addr = arena_->AllocateAligned(sizeof(Bucket));
- bucket = new (addr) Bucket(compare_, arena_);
- buckets_[hash].Release_Store(static_cast<void*>(bucket));
- }
- return bucket;
-}
-
-void HashSkipListRep::Insert(const char* key) {
- assert(!Contains(key));
- auto transformed = transform_->Transform(UserKey(key));
- auto bucket = GetInitializedBucket(transformed);
- bucket->Insert(key);
-}
-
-bool HashSkipListRep::Contains(const char* key) const {
- auto transformed = transform_->Transform(UserKey(key));
- auto bucket = GetBucket(transformed);
- if (bucket == nullptr) {
- return false;
- }
- return bucket->Contains(key);
-}
-
-size_t HashSkipListRep::ApproximateMemoryUsage() {
- return sizeof(buckets_);
-}
-
-std::shared_ptr<MemTableRep::Iterator> HashSkipListRep::GetIterator() {
- auto list = new Bucket(compare_, arena_);
- for (size_t i = 0; i < bucket_size_; ++i) {
- auto bucket = GetBucket(i);
- if (bucket != nullptr) {
- Bucket::Iterator itr(bucket);
- for (itr.SeekToFirst(); itr.Valid(); itr.Next()) {
- list->Insert(itr.key());
- }
- }
- }
- return std::make_shared<Iterator>(list);
-}
-
-std::shared_ptr<MemTableRep::Iterator> HashSkipListRep::GetPrefixIterator(
- const Slice& prefix) {
- auto bucket = GetBucket(prefix);
- if (bucket == nullptr) {
- return empty_iterator_;
- }
- return std::make_shared<Iterator>(bucket, false);
-}
-
-std::shared_ptr<MemTableRep::Iterator> HashSkipListRep::GetIterator(
- const Slice& slice) {
- return GetPrefixIterator(transform_->Transform(slice));
-}
-
-std::shared_ptr<MemTableRep::Iterator>
- HashSkipListRep::GetDynamicPrefixIterator() {
- return std::make_shared<DynamicIterator>(*this);
-}
-
-} // anon namespace
-
-class HashSkipListRepFactory : public MemTableRepFactory {
- public:
- explicit HashSkipListRepFactory(const SliceTransform* transform,
- size_t bucket_count = 1000000)
- : transform_(transform),
- bucket_count_(bucket_count) { }
-
- virtual ~HashSkipListRepFactory() { delete transform_; }
-
- virtual std::shared_ptr<MemTableRep> CreateMemTableRep(
- MemTableRep::KeyComparator& compare, Arena* arena) override {
- return std::make_shared<HashSkipListRep>(compare, arena, transform_,
- bucket_count_);
- }
-
- virtual const char* Name() const override {
- return "HashSkipListRepFactory";
- }
-
- const SliceTransform* GetTransform() { return transform_; }
-
- private:
- const SliceTransform* transform_;
- const size_t bucket_count_;
-};
-
-MemTableRepFactory* NewHashSkipListRepFactory(
- const SliceTransform* transform, size_t bucket_count) {
- return new HashSkipListRepFactory(transform, bucket_count);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/histogram.h"
-
-#include <cassert>
-#include <math.h>
-#include <stdio.h>
-#include "port/port.h"
-
-namespace rocksdb {
-
-HistogramBucketMapper::HistogramBucketMapper() :
- // Add newer bucket index here.
- // Should be alwyas added in sorted order.
- bucketValues_({
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45,
- 50, 60, 70, 80, 90, 100, 120, 140, 160, 180, 200, 250, 300, 350, 400, 450,
- 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000, 2500, 3000,
- 3500, 4000, 4500, 5000, 6000, 7000, 8000, 9000, 10000, 12000, 14000,
- 16000, 18000, 20000, 25000, 30000, 35000, 40000, 45000, 50000, 60000,
- 70000, 80000, 90000, 100000, 120000, 140000, 160000, 180000, 200000,
- 250000, 300000, 350000, 400000, 450000, 500000, 600000, 700000, 800000,
- 900000, 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2500000,
- 3000000, 3500000, 4000000, 4500000, 5000000, 6000000, 7000000, 8000000,
- 9000000, 10000000, 12000000, 14000000, 16000000, 18000000, 20000000,
- 25000000, 30000000, 35000000, 40000000, 45000000, 50000000, 60000000,
- 70000000, 80000000, 90000000, 100000000, 120000000, 140000000, 160000000,
- 180000000, 200000000, 250000000, 300000000, 350000000, 400000000,
- 450000000, 500000000, 600000000, 700000000, 800000000, 900000000,
- 1000000000}),
- maxBucketValue_(bucketValues_.back()),
- minBucketValue_(bucketValues_.front()) {
- for (size_t i =0; i < bucketValues_.size(); ++i) {
- valueIndexMap_[bucketValues_[i]] = i;
- }
-}
-
-const size_t HistogramBucketMapper::IndexForValue(const uint64_t value) const {
- if (value >= maxBucketValue_) {
- return bucketValues_.size() - 1;
- } else if ( value >= minBucketValue_ ) {
- std::map<uint64_t, uint64_t>::const_iterator lowerBound =
- valueIndexMap_.lower_bound(value);
- if (lowerBound != valueIndexMap_.end()) {
- return lowerBound->second;
- } else {
- return 0;
- }
- } else {
- return 0;
- }
-}
-
-namespace {
- const HistogramBucketMapper bucketMapper;
-}
-
-
-HistogramImpl::HistogramImpl() :
- min_(bucketMapper.LastValue()),
- max_(0),
- num_(0),
- sum_(0),
- sum_squares_(0),
- buckets_(std::vector<uint64_t>(bucketMapper.BucketCount(), 0)) {}
-
-void HistogramImpl::Clear() {
- min_ = bucketMapper.LastValue();
- max_ = 0;
- num_ = 0;
- sum_ = 0;
- sum_squares_ = 0;
- buckets_.resize(bucketMapper.BucketCount(), 0);
-}
-
-void HistogramImpl::Add(uint64_t value) {
- const size_t index = bucketMapper.IndexForValue(value);
- buckets_[index] += 1;
- if (min_ > value) min_ = value;
- if (max_ < value) max_ = value;
- num_++;
- sum_ += value;
- sum_squares_ += (value * value);
-}
-
-void HistogramImpl::Merge(const HistogramImpl& other) {
- if (other.min_ < min_) min_ = other.min_;
- if (other.max_ > max_) max_ = other.max_;
- num_ += other.num_;
- sum_ += other.sum_;
- sum_squares_ += other.sum_squares_;
- for (unsigned int b = 0; b < bucketMapper.BucketCount(); b++) {
- buckets_[b] += other.buckets_[b];
- }
-}
-
-double HistogramImpl::Median() const {
- return Percentile(50.0);
-}
-
-double HistogramImpl::Percentile(double p) const {
- double threshold = num_ * (p / 100.0);
- double sum = 0;
- for (unsigned int b = 0; b < bucketMapper.BucketCount(); b++) {
- sum += buckets_[b];
- if (sum >= threshold) {
- // Scale linearly within this bucket
- double left_point = (b == 0) ? 0 : bucketMapper.BucketLimit(b-1);
- double right_point = bucketMapper.BucketLimit(b);
- double left_sum = sum - buckets_[b];
- double right_sum = sum;
- double pos = 0;
- double right_left_diff = right_sum - left_sum;
- if (right_left_diff != 0) {
- pos = (threshold - left_sum) / (right_sum - left_sum);
- }
- double r = left_point + (right_point - left_point) * pos;
- if (r < min_) r = min_;
- if (r > max_) r = max_;
- return r;
- }
- }
- return max_;
-}
-
-double HistogramImpl::Average() const {
- if (num_ == 0.0) return 0;
- return sum_ / num_;
-}
-
-double HistogramImpl::StandardDeviation() const {
- if (num_ == 0.0) return 0;
- double variance = (sum_squares_ * num_ - sum_ * sum_) / (num_ * num_);
- return sqrt(variance);
-}
-
-std::string HistogramImpl::ToString() const {
- std::string r;
- char buf[200];
- snprintf(buf, sizeof(buf),
- "Count: %.0f Average: %.4f StdDev: %.2f\n",
- num_, Average(), StandardDeviation());
- r.append(buf);
- snprintf(buf, sizeof(buf),
- "Min: %.4f Median: %.4f Max: %.4f\n",
- (num_ == 0.0 ? 0.0 : min_), Median(), max_);
- r.append(buf);
- snprintf(buf, sizeof(buf),
- "Percentiles: "
- "P50: %.2f P75: %.2f P99: %.2f P99.9: %.2f P99.99: %.2f\n",
- Percentile(50), Percentile(75), Percentile(99), Percentile(99.9),
- Percentile(99.99));
- r.append(buf);
- r.append("------------------------------------------------------\n");
- const double mult = 100.0 / num_;
- double sum = 0;
- for (unsigned int b = 0; b < bucketMapper.BucketCount(); b++) {
- if (buckets_[b] <= 0.0) continue;
- sum += buckets_[b];
- snprintf(buf, sizeof(buf),
- "[ %7lu, %7lu ) %8lu %7.3f%% %7.3f%% ",
- // left
- (unsigned long)((b == 0) ? 0 : bucketMapper.BucketLimit(b-1)),
- (unsigned long)bucketMapper.BucketLimit(b), // right
- (unsigned long)buckets_[b], // count
- (mult * buckets_[b]), // percentage
- (mult * sum)); // cumulative percentage
- r.append(buf);
-
- // Add hash marks based on percentage; 20 marks for 100%.
- int marks = static_cast<int>(20*(buckets_[b] / num_) + 0.5);
- r.append(marks, '#');
- r.push_back('\n');
- }
- return r;
-}
-
-void HistogramImpl::Data(HistogramData * const data) const {
- assert(data);
- data->median = Median();
- data->percentile95 = Percentile(95);
- data->percentile99 = Percentile(99);
- data->average = Average();
- data->standard_deviation = StandardDeviation();
-}
-
-} // namespace levedb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/statistics.h"
-
-#include <cassert>
-#include <string>
-#include <vector>
-#include <map>
-
-namespace rocksdb {
-
-class HistogramBucketMapper {
- public:
-
- HistogramBucketMapper();
-
- // converts a value to the bucket index.
- const size_t IndexForValue(const uint64_t value) const;
- // number of buckets required.
-
- const size_t BucketCount() const {
- return bucketValues_.size();
- }
-
- uint64_t LastValue() const {
- return maxBucketValue_;
- }
-
- uint64_t FirstValue() const {
- return minBucketValue_;
- }
-
- uint64_t BucketLimit(const uint64_t bucketNumber) const {
- assert(bucketNumber < BucketCount());
- return bucketValues_[bucketNumber];
- }
-
- private:
- const std::vector<uint64_t> bucketValues_;
- const uint64_t maxBucketValue_;
- const uint64_t minBucketValue_;
- std::map<uint64_t, uint64_t> valueIndexMap_;
-};
-
-class HistogramImpl {
- public:
- HistogramImpl();
- virtual ~HistogramImpl() {}
- virtual void Clear();
- virtual void Add(uint64_t value);
- void Merge(const HistogramImpl& other);
-
- virtual std::string ToString() const;
-
- virtual double Median() const;
- virtual double Percentile(double p) const;
- virtual double Average() const;
- virtual double StandardDeviation() const;
- virtual void Data(HistogramData * const data) const;
-
- private:
- double min_;
- double max_;
- double num_;
- double sum_;
- double sum_squares_;
- std::vector<uint64_t> buckets_;
-
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "util/histogram.h"
-
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-class HistogramTest { };
-
-TEST(HistogramTest, BasicOperation) {
-
- HistogramImpl histogram;
- for (uint64_t i = 1; i <= 100; i++) {
- histogram.Add(i);
- }
-
- {
- double median = histogram.Median();
- // ASSERT_LE(median, 50);
- ASSERT_GT(median, 0);
- }
-
- {
- double percentile100 = histogram.Percentile(100.0);
- ASSERT_LE(percentile100, 100.0);
- ASSERT_GT(percentile100, 0.0);
- double percentile99 = histogram.Percentile(99.0);
- double percentile85 = histogram.Percentile(85.0);
- ASSERT_LE(percentile99, 99.0);
- ASSERT_TRUE(percentile99 >= percentile85);
- }
-
- ASSERT_EQ(histogram.Average(), 50.5); // avg is acurately caluclated.
-}
-
-TEST(HistogramTest, EmptyHistogram) {
- HistogramImpl histogram;
- ASSERT_EQ(histogram.Median(), 0.0);
- ASSERT_EQ(histogram.Percentile(85.0), 0.0);
- ASSERT_EQ(histogram.Average(), 0.0);
-}
-
-TEST(HistogramTest, ClearHistogram) {
- HistogramImpl histogram;
- for (uint64_t i = 1; i <= 100; i++) {
- histogram.Add(i);
- }
- histogram.Clear();
- ASSERT_EQ(histogram.Median(), 0);
- ASSERT_EQ(histogram.Percentile(85.0), 0);
- ASSERT_EQ(histogram.Average(), 0);
-}
-
-} // namespace rocksdb
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "util/ldb_cmd.h"
-
-#include "db/dbformat.h"
-#include "db/db_impl.h"
-#include "db/log_reader.h"
-#include "db/filename.h"
-#include "db/write_batch_internal.h"
-#include "rocksdb/write_batch.h"
-#include "util/coding.h"
-
-#include <ctime>
-#include <dirent.h>
-#include <sstream>
-#include <string>
-#include <stdexcept>
-
-namespace rocksdb {
-
-using namespace std;
-
-const string LDBCommand::ARG_DB = "db";
-const string LDBCommand::ARG_HEX = "hex";
-const string LDBCommand::ARG_KEY_HEX = "key_hex";
-const string LDBCommand::ARG_VALUE_HEX = "value_hex";
-const string LDBCommand::ARG_TTL = "ttl";
-const string LDBCommand::ARG_TTL_START = "start_time";
-const string LDBCommand::ARG_TTL_END = "end_time";
-const string LDBCommand::ARG_TIMESTAMP = "timestamp";
-const string LDBCommand::ARG_FROM = "from";
-const string LDBCommand::ARG_TO = "to";
-const string LDBCommand::ARG_MAX_KEYS = "max_keys";
-const string LDBCommand::ARG_BLOOM_BITS = "bloom_bits";
-const string LDBCommand::ARG_COMPRESSION_TYPE = "compression_type";
-const string LDBCommand::ARG_BLOCK_SIZE = "block_size";
-const string LDBCommand::ARG_AUTO_COMPACTION = "auto_compaction";
-const string LDBCommand::ARG_WRITE_BUFFER_SIZE = "write_buffer_size";
-const string LDBCommand::ARG_FILE_SIZE = "file_size";
-const string LDBCommand::ARG_CREATE_IF_MISSING = "create_if_missing";
-
-const char* LDBCommand::DELIM = " ==> ";
-
-LDBCommand* LDBCommand::InitFromCmdLineArgs(
- int argc,
- char** argv,
- const Options& options
-) {
- vector<string> args;
- for (int i = 1; i < argc; i++) {
- args.push_back(argv[i]);
- }
- return InitFromCmdLineArgs(args, options);
-}
-
-/**
- * Parse the command-line arguments and create the appropriate LDBCommand2
- * instance.
- * The command line arguments must be in the following format:
- * ./ldb --db=PATH_TO_DB [--commonOpt1=commonOpt1Val] ..
- * COMMAND <PARAM1> <PARAM2> ... [-cmdSpecificOpt1=cmdSpecificOpt1Val] ..
- * This is similar to the command line format used by HBaseClientTool.
- * Command name is not included in args.
- * Returns nullptr if the command-line cannot be parsed.
- */
-LDBCommand* LDBCommand::InitFromCmdLineArgs(
- const vector<string>& args,
- const Options& options
-) {
- // --x=y command line arguments are added as x->y map entries.
- map<string, string> option_map;
-
- // Command-line arguments of the form --hex end up in this array as hex
- vector<string> flags;
-
- // Everything other than option_map and flags. Represents commands
- // and their parameters. For eg: put key1 value1 go into this vector.
- vector<string> cmdTokens;
-
- const string OPTION_PREFIX = "--";
-
- for (const auto& arg : args) {
- if (arg[0] == '-' && arg[1] == '-'){
- vector<string> splits = stringSplit(arg, '=');
- if (splits.size() == 2) {
- string optionKey = splits[0].substr(OPTION_PREFIX.size());
- option_map[optionKey] = splits[1];
- } else {
- string optionKey = splits[0].substr(OPTION_PREFIX.size());
- flags.push_back(optionKey);
- }
- } else {
- cmdTokens.push_back(arg);
- }
- }
-
- if (cmdTokens.size() < 1) {
- fprintf(stderr, "Command not specified!");
- return nullptr;
- }
-
- string cmd = cmdTokens[0];
- vector<string> cmdParams(cmdTokens.begin()+1, cmdTokens.end());
- LDBCommand* command = LDBCommand::SelectCommand(
- cmd,
- cmdParams,
- option_map,
- flags
- );
-
- if (command) {
- command->SetOptions(options);
- }
- return command;
-}
-
-LDBCommand* LDBCommand::SelectCommand(
- const std::string& cmd,
- const vector<string>& cmdParams,
- const map<string, string>& option_map,
- const vector<string>& flags
- ) {
-
- if (cmd == GetCommand::Name()) {
- return new GetCommand(cmdParams, option_map, flags);
- } else if (cmd == PutCommand::Name()) {
- return new PutCommand(cmdParams, option_map, flags);
- } else if (cmd == BatchPutCommand::Name()) {
- return new BatchPutCommand(cmdParams, option_map, flags);
- } else if (cmd == ScanCommand::Name()) {
- return new ScanCommand(cmdParams, option_map, flags);
- } else if (cmd == DeleteCommand::Name()) {
- return new DeleteCommand(cmdParams, option_map, flags);
- } else if (cmd == ApproxSizeCommand::Name()) {
- return new ApproxSizeCommand(cmdParams, option_map, flags);
- } else if (cmd == DBQuerierCommand::Name()) {
- return new DBQuerierCommand(cmdParams, option_map, flags);
- } else if (cmd == CompactorCommand::Name()) {
- return new CompactorCommand(cmdParams, option_map, flags);
- } else if (cmd == WALDumperCommand::Name()) {
- return new WALDumperCommand(cmdParams, option_map, flags);
- } else if (cmd == ReduceDBLevelsCommand::Name()) {
- return new ReduceDBLevelsCommand(cmdParams, option_map, flags);
- } else if (cmd == ChangeCompactionStyleCommand::Name()) {
- return new ChangeCompactionStyleCommand(cmdParams, option_map, flags);
- } else if (cmd == DBDumperCommand::Name()) {
- return new DBDumperCommand(cmdParams, option_map, flags);
- } else if (cmd == DBLoaderCommand::Name()) {
- return new DBLoaderCommand(cmdParams, option_map, flags);
- } else if (cmd == ManifestDumpCommand::Name()) {
- return new ManifestDumpCommand(cmdParams, option_map, flags);
- } else if (cmd == InternalDumpCommand::Name()) {
- return new InternalDumpCommand(cmdParams, option_map, flags);
- }
- return nullptr;
-}
-
-
-/**
- * Parses the specific integer option and fills in the value.
- * Returns true if the option is found.
- * Returns false if the option is not found or if there is an error parsing the
- * value. If there is an error, the specified exec_state is also
- * updated.
- */
-bool LDBCommand::ParseIntOption(const map<string, string>& options,
- const string& option, int& value,
- LDBCommandExecuteResult& exec_state) {
-
- map<string, string>::const_iterator itr = option_map_.find(option);
- if (itr != option_map_.end()) {
- try {
- value = stoi(itr->second);
- return true;
- } catch(const invalid_argument&) {
- exec_state = LDBCommandExecuteResult::FAILED(option +
- " has an invalid value.");
- } catch(const out_of_range&) {
- exec_state = LDBCommandExecuteResult::FAILED(option +
- " has a value out-of-range.");
- }
- }
- return false;
-}
-
-/**
- * Parses the specified option and fills in the value.
- * Returns true if the option is found.
- * Returns false otherwise.
- */
-bool LDBCommand::ParseStringOption(const map<string, string>& options,
- const string& option, string* value) {
- auto itr = option_map_.find(option);
- if (itr != option_map_.end()) {
- *value = itr->second;
- return true;
- }
- return false;
-}
-
-Options LDBCommand::PrepareOptionsForOpenDB() {
-
- Options opt = options_;
- opt.create_if_missing = false;
-
- map<string, string>::const_iterator itr;
-
- int bits;
- if (ParseIntOption(option_map_, ARG_BLOOM_BITS, bits, exec_state_)) {
- if (bits > 0) {
- opt.filter_policy = NewBloomFilterPolicy(bits);
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_BLOOM_BITS +
- " must be > 0.");
- }
- }
-
- int block_size;
- if (ParseIntOption(option_map_, ARG_BLOCK_SIZE, block_size, exec_state_)) {
- if (block_size > 0) {
- opt.block_size = block_size;
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_BLOCK_SIZE +
- " must be > 0.");
- }
- }
-
- itr = option_map_.find(ARG_AUTO_COMPACTION);
- if (itr != option_map_.end()) {
- opt.disable_auto_compactions = ! StringToBool(itr->second);
- }
-
- itr = option_map_.find(ARG_COMPRESSION_TYPE);
- if (itr != option_map_.end()) {
- string comp = itr->second;
- if (comp == "no") {
- opt.compression = kNoCompression;
- } else if (comp == "snappy") {
- opt.compression = kSnappyCompression;
- } else if (comp == "zlib") {
- opt.compression = kZlibCompression;
- } else if (comp == "bzip2") {
- opt.compression = kBZip2Compression;
- } else {
- // Unknown compression.
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Unknown compression level: " + comp);
- }
- }
-
- int write_buffer_size;
- if (ParseIntOption(option_map_, ARG_WRITE_BUFFER_SIZE, write_buffer_size,
- exec_state_)) {
- if (write_buffer_size > 0) {
- opt.write_buffer_size = write_buffer_size;
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_WRITE_BUFFER_SIZE +
- " must be > 0.");
- }
- }
-
- int file_size;
- if (ParseIntOption(option_map_, ARG_FILE_SIZE, file_size, exec_state_)) {
- if (file_size > 0) {
- opt.target_file_size_base = file_size;
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_FILE_SIZE +
- " must be > 0.");
- }
- }
-
- return opt;
-}
-
-bool LDBCommand::ParseKeyValue(const string& line, string* key, string* value,
- bool is_key_hex, bool is_value_hex) {
- size_t pos = line.find(DELIM);
- if (pos != string::npos) {
- *key = line.substr(0, pos);
- *value = line.substr(pos + strlen(DELIM));
- if (is_key_hex) {
- *key = HexToString(*key);
- }
- if (is_value_hex) {
- *value = HexToString(*value);
- }
- return true;
- } else {
- return false;
- }
-}
-
-/**
- * Make sure that ONLY the command-line options and flags expected by this
- * command are specified on the command-line. Extraneous options are usually
- * the result of user error.
- * Returns true if all checks pass. Else returns false, and prints an
- * appropriate error msg to stderr.
- */
-bool LDBCommand::ValidateCmdLineOptions() {
-
- for (map<string, string>::const_iterator itr = option_map_.begin();
- itr != option_map_.end(); itr++) {
- if (find(valid_cmd_line_options_.begin(),
- valid_cmd_line_options_.end(), itr->first) ==
- valid_cmd_line_options_.end()) {
- fprintf(stderr, "Invalid command-line option %s\n", itr->first.c_str());
- return false;
- }
- }
-
- for (vector<string>::const_iterator itr = flags_.begin();
- itr != flags_.end(); itr++) {
- if (find(valid_cmd_line_options_.begin(),
- valid_cmd_line_options_.end(), *itr) ==
- valid_cmd_line_options_.end()) {
- fprintf(stderr, "Invalid command-line flag %s\n", itr->c_str());
- return false;
- }
- }
-
- if (!NoDBOpen() && option_map_.find(ARG_DB) == option_map_.end()) {
- fprintf(stderr, "%s must be specified\n", ARG_DB.c_str());
- return false;
- }
-
- return true;
-}
-
-CompactorCommand::CompactorCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_FROM, ARG_TO, ARG_HEX, ARG_KEY_HEX,
- ARG_VALUE_HEX, ARG_TTL})),
- null_from_(true), null_to_(true) {
-
- map<string, string>::const_iterator itr = options.find(ARG_FROM);
- if (itr != options.end()) {
- null_from_ = false;
- from_ = itr->second;
- }
-
- itr = options.find(ARG_TO);
- if (itr != options.end()) {
- null_to_ = false;
- to_ = itr->second;
- }
-
- if (is_key_hex_) {
- if (!null_from_) {
- from_ = HexToString(from_);
- }
- if (!null_to_) {
- to_ = HexToString(to_);
- }
- }
-}
-
-void CompactorCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(CompactorCommand::Name());
- ret.append(HelpRangeCmdArgs());
- ret.append("\n");
-}
-
-void CompactorCommand::DoCommand() {
-
- Slice* begin = nullptr;
- Slice* end = nullptr;
- if (!null_from_) {
- begin = new Slice(from_);
- }
- if (!null_to_) {
- end = new Slice(to_);
- }
-
- db_->CompactRange(begin, end);
- exec_state_ = LDBCommandExecuteResult::SUCCEED("");
-
- delete begin;
- delete end;
-}
-
-const string DBLoaderCommand::ARG_DISABLE_WAL = "disable_wal";
-const string DBLoaderCommand::ARG_BULK_LOAD = "bulk_load";
-const string DBLoaderCommand::ARG_COMPACT = "compact";
-
-DBLoaderCommand::DBLoaderCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
- ARG_FROM, ARG_TO, ARG_CREATE_IF_MISSING,
- ARG_DISABLE_WAL, ARG_BULK_LOAD,
- ARG_COMPACT})),
- create_if_missing_(false), disable_wal_(false), bulk_load_(false),
- compact_(false) {
-
- create_if_missing_ = IsFlagPresent(flags, ARG_CREATE_IF_MISSING);
- disable_wal_ = IsFlagPresent(flags, ARG_DISABLE_WAL);
- bulk_load_ = IsFlagPresent(flags, ARG_BULK_LOAD);
- compact_ = IsFlagPresent(flags, ARG_COMPACT);
-}
-
-void DBLoaderCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(DBLoaderCommand::Name());
- ret.append(" [--" + ARG_CREATE_IF_MISSING + "]");
- ret.append(" [--" + ARG_DISABLE_WAL + "]");
- ret.append(" [--" + ARG_BULK_LOAD + "]");
- ret.append(" [--" + ARG_COMPACT + "]");
- ret.append("\n");
-}
-
-Options DBLoaderCommand::PrepareOptionsForOpenDB() {
- Options opt = LDBCommand::PrepareOptionsForOpenDB();
- opt.create_if_missing = create_if_missing_;
- if (bulk_load_) {
- opt.PrepareForBulkLoad();
- }
- return opt;
-}
-
-void DBLoaderCommand::DoCommand() {
- if (!db_) {
- return;
- }
-
- WriteOptions write_options;
- if (disable_wal_) {
- write_options.disableWAL = true;
- }
-
- int bad_lines = 0;
- string line;
- while (getline(cin, line, '\n')) {
- string key;
- string value;
- if (ParseKeyValue(line, &key, &value, is_key_hex_, is_value_hex_)) {
- db_->Put(write_options, Slice(key), Slice(value));
- } else if (0 == line.find("Keys in range:")) {
- // ignore this line
- } else if (0 == line.find("Created bg thread 0x")) {
- // ignore this line
- } else {
- bad_lines ++;
- }
- }
-
- if (bad_lines > 0) {
- cout << "Warning: " << bad_lines << " bad lines ignored." << endl;
- }
- if (compact_) {
- db_->CompactRange(nullptr, nullptr);
- }
-}
-
-// ----------------------------------------------------------------------------
-
-const string ManifestDumpCommand::ARG_VERBOSE = "verbose";
-const string ManifestDumpCommand::ARG_PATH = "path";
-
-void ManifestDumpCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(ManifestDumpCommand::Name());
- ret.append(" [--" + ARG_VERBOSE + "]");
- ret.append(" [--" + ARG_PATH + "=<path_to_manifest_file>]");
- ret.append("\n");
-}
-
-ManifestDumpCommand::ManifestDumpCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_VERBOSE, ARG_PATH, ARG_HEX})),
- verbose_(false),
- path_("")
-{
- verbose_ = IsFlagPresent(flags, ARG_VERBOSE);
-
- map<string, string>::const_iterator itr = options.find(ARG_PATH);
- if (itr != options.end()) {
- path_ = itr->second;
- if (path_.empty()) {
- exec_state_ = LDBCommandExecuteResult::FAILED("--path: missing pathname");
- }
- }
-}
-
-void ManifestDumpCommand::DoCommand() {
-
- std::string manifestfile;
-
- if (!path_.empty()) {
- manifestfile = path_;
- } else {
- bool found = false;
- // We need to find the manifest file by searching the directory
- // containing the db for files of the form MANIFEST_[0-9]+
- DIR* d = opendir(db_path_.c_str());
- if (d == nullptr) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- db_path_ + " is not a directory");
- return;
- }
- struct dirent* entry;
- while ((entry = readdir(d)) != nullptr) {
- unsigned int match;
- unsigned long long num;
- if (sscanf(entry->d_name,
- "MANIFEST-%ln%ln",
- (unsigned long*)&num,
- (unsigned long*)&match)
- && match == strlen(entry->d_name)) {
- if (!found) {
- manifestfile = db_path_ + "/" + std::string(entry->d_name);
- found = true;
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Multiple MANIFEST files found; use --path to select one");
- return;
- }
- }
- }
- closedir(d);
- }
-
- if (verbose_) {
- printf("Processing Manifest file %s\n", manifestfile.c_str());
- }
-
- Options options;
- EnvOptions sopt;
- std::string file(manifestfile);
- std::string dbname("dummy");
- TableCache* tc = new TableCache(dbname, &options, sopt, 10);
- const InternalKeyComparator* cmp =
- new InternalKeyComparator(options.comparator);
-
- VersionSet* versions = new VersionSet(dbname, &options, sopt, tc, cmp);
- Status s = versions->DumpManifest(options, file, verbose_, is_key_hex_);
- if (!s.ok()) {
- printf("Error in processing file %s %s\n", manifestfile.c_str(),
- s.ToString().c_str());
- }
- if (verbose_) {
- printf("Processing Manifest file %s done\n", manifestfile.c_str());
- }
-}
-
-// ----------------------------------------------------------------------------
-
-string ReadableTime(int unixtime) {
- char time_buffer [80];
- time_t rawtime = unixtime;
- struct tm * timeinfo = localtime(&rawtime);
- strftime(time_buffer, 80, "%c", timeinfo);
- return string(time_buffer);
-}
-
-// This function only called when it's the sane case of >1 buckets in time-range
-// Also called only when timekv falls between ttl_start and ttl_end provided
-void IncBucketCounts(vector<uint64_t>& bucket_counts, int ttl_start,
- int time_range, int bucket_size, int timekv, int num_buckets) {
- assert(time_range > 0 && timekv >= ttl_start && bucket_size > 0 &&
- timekv < (ttl_start + time_range) && num_buckets > 1);
- int bucket = (timekv - ttl_start) / bucket_size;
- bucket_counts[bucket]++;
-}
-
-void PrintBucketCounts(const vector<uint64_t>& bucket_counts, int ttl_start,
- int ttl_end, int bucket_size, int num_buckets) {
- int time_point = ttl_start;
- for(int i = 0; i < num_buckets - 1; i++, time_point += bucket_size) {
- fprintf(stdout, "Keys in range %s to %s : %lu\n",
- ReadableTime(time_point).c_str(),
- ReadableTime(time_point + bucket_size).c_str(),
- (unsigned long)bucket_counts[i]);
- }
- fprintf(stdout, "Keys in range %s to %s : %lu\n",
- ReadableTime(time_point).c_str(),
- ReadableTime(ttl_end).c_str(),
- (unsigned long)bucket_counts[num_buckets - 1]);
-}
-
-const string InternalDumpCommand::ARG_COUNT_ONLY = "count_only";
-const string InternalDumpCommand::ARG_COUNT_DELIM = "count_delim";
-const string InternalDumpCommand::ARG_STATS = "stats";
-const string InternalDumpCommand::ARG_INPUT_KEY_HEX = "input_key_hex";
-
-InternalDumpCommand::InternalDumpCommand(const vector<string>& params,
- const map<string, string>& options,
- const vector<string>& flags) :
- LDBCommand(options, flags, true,
- BuildCmdLineOptions({ ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
- ARG_FROM, ARG_TO, ARG_MAX_KEYS,
- ARG_COUNT_ONLY, ARG_COUNT_DELIM, ARG_STATS,
- ARG_INPUT_KEY_HEX})),
- has_from_(false),
- has_to_(false),
- max_keys_(-1),
- delim_("."),
- count_only_(false),
- count_delim_(false),
- print_stats_(false),
- is_input_key_hex_(false) {
-
- has_from_ = ParseStringOption(options, ARG_FROM, &from_);
- has_to_ = ParseStringOption(options, ARG_TO, &to_);
-
- ParseIntOption(options, ARG_MAX_KEYS, max_keys_, exec_state_);
- map<string, string>::const_iterator itr = options.find(ARG_COUNT_DELIM);
- if (itr != options.end()) {
- delim_ = itr->second;
- count_delim_ = true;
- // fprintf(stdout,"delim = %c\n",delim_[0]);
- } else {
- count_delim_ = IsFlagPresent(flags, ARG_COUNT_DELIM);
- delim_=".";
- }
-
- print_stats_ = IsFlagPresent(flags, ARG_STATS);
- count_only_ = IsFlagPresent(flags, ARG_COUNT_ONLY);
- is_input_key_hex_ = IsFlagPresent(flags, ARG_INPUT_KEY_HEX);
-
- if (is_input_key_hex_) {
- if (has_from_) {
- from_ = HexToString(from_);
- }
- if (has_to_) {
- to_ = HexToString(to_);
- }
- }
-}
-
-void InternalDumpCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(InternalDumpCommand::Name());
- ret.append(HelpRangeCmdArgs());
- ret.append(" [--" + ARG_INPUT_KEY_HEX + "]");
- ret.append(" [--" + ARG_MAX_KEYS + "=<N>]");
- ret.append(" [--" + ARG_COUNT_ONLY + "]");
- ret.append(" [--" + ARG_COUNT_DELIM + "=<char>]");
- ret.append(" [--" + ARG_STATS + "]");
- ret.append("\n");
-}
-
-void InternalDumpCommand::DoCommand() {
- if (!db_) {
- return;
- }
-
- if (print_stats_) {
- string stats;
- if (db_->GetProperty("rocksdb.stats", &stats)) {
- fprintf(stdout, "%s\n", stats.c_str());
- }
- }
-
- // Cast as DBImpl to get internal iterator
- DBImpl* idb = dynamic_cast<DBImpl*>(db_);
- if (!idb) {
- exec_state_ = LDBCommandExecuteResult::FAILED("DB is not DBImpl");
- return;
- }
- string rtype1,rtype2,row,val;
- rtype2 = "";
- uint64_t c=0;
- uint64_t s1=0,s2=0;
- // Setup internal key iterator
- auto iter = unique_ptr<Iterator>(idb->TEST_NewInternalIterator());
- Status st = iter->status();
- if (!st.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED("Iterator error:"
- + st.ToString());
- }
-
- if (has_from_) {
- InternalKey ikey(from_, kMaxSequenceNumber, kValueTypeForSeek);
- iter->Seek(ikey.Encode());
- } else {
- iter->SeekToFirst();
- }
-
- long long count = 0;
- for (; iter->Valid(); iter->Next()) {
- ParsedInternalKey ikey;
- if (!ParseInternalKey(iter->key(), &ikey)) {
- fprintf(stderr, "Internal Key [%s] parse error!\n",
- iter->key().ToString(true /* in hex*/).data());
- // TODO: add error counter
- continue;
- }
-
- // If end marker was specified, we stop before it
- if (has_to_ && options_.comparator->Compare(ikey.user_key, to_) >= 0) {
- break;
- }
-
- ++count;
- int k;
- if (count_delim_) {
- rtype1 = "";
- s1=0;
- row = iter->key().ToString();
- val = iter->value().ToString();
- for(k=0;row[k]!='\x01' && row[k]!='\0';k++)
- s1++;
- for(k=0;val[k]!='\x01' && val[k]!='\0';k++)
- s1++;
- for(int j=0;row[j]!=delim_[0] && row[j]!='\0' && row[j]!='\x01';j++)
- rtype1+=row[j];
- if(rtype2.compare("") && rtype2.compare(rtype1)!=0) {
- fprintf(stdout,"%s => count:%lld\tsize:%lld\n",rtype2.c_str(),
- (long long)c,(long long)s2);
- c=1;
- s2=s1;
- rtype2 = rtype1;
- } else {
- c++;
- s2+=s1;
- rtype2=rtype1;
- }
- }
-
- if (!count_only_ && !count_delim_) {
- string key = ikey.DebugString(is_key_hex_);
- string value = iter->value().ToString(is_value_hex_);
- std::cout << key << " => " << value << "\n";
- }
-
- // Terminate if maximum number of keys have been dumped
- if (max_keys_ > 0 && count >= max_keys_) break;
- }
- if(count_delim_) {
- fprintf(stdout,"%s => count:%lld\tsize:%lld\n", rtype2.c_str(),
- (long long)c,(long long)s2);
- } else
- fprintf(stdout, "Internal keys in range: %lld\n", (long long) count);
-}
-
-
-const string DBDumperCommand::ARG_COUNT_ONLY = "count_only";
-const string DBDumperCommand::ARG_COUNT_DELIM = "count_delim";
-const string DBDumperCommand::ARG_STATS = "stats";
-const string DBDumperCommand::ARG_TTL_BUCKET = "bucket";
-
-DBDumperCommand::DBDumperCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, true,
- BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
- ARG_VALUE_HEX, ARG_FROM, ARG_TO,
- ARG_MAX_KEYS, ARG_COUNT_ONLY,
- ARG_COUNT_DELIM, ARG_STATS, ARG_TTL_START,
- ARG_TTL_END, ARG_TTL_BUCKET,
- ARG_TIMESTAMP})),
- null_from_(true),
- null_to_(true),
- max_keys_(-1),
- count_only_(false),
- count_delim_(false),
- print_stats_(false) {
-
- map<string, string>::const_iterator itr = options.find(ARG_FROM);
- if (itr != options.end()) {
- null_from_ = false;
- from_ = itr->second;
- }
-
- itr = options.find(ARG_TO);
- if (itr != options.end()) {
- null_to_ = false;
- to_ = itr->second;
- }
-
- itr = options.find(ARG_MAX_KEYS);
- if (itr != options.end()) {
- try {
- max_keys_ = stoi(itr->second);
- } catch(const invalid_argument&) {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_MAX_KEYS +
- " has an invalid value");
- } catch(const out_of_range&) {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_MAX_KEYS +
- " has a value out-of-range");
- }
- }
- itr = options.find(ARG_COUNT_DELIM);
- if (itr != options.end()) {
- delim_ = itr->second;
- count_delim_ = true;
- } else {
- count_delim_ = IsFlagPresent(flags, ARG_COUNT_DELIM);
- delim_=".";
- }
-
- print_stats_ = IsFlagPresent(flags, ARG_STATS);
- count_only_ = IsFlagPresent(flags, ARG_COUNT_ONLY);
-
- if (is_key_hex_) {
- if (!null_from_) {
- from_ = HexToString(from_);
- }
- if (!null_to_) {
- to_ = HexToString(to_);
- }
- }
-}
-
-void DBDumperCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(DBDumperCommand::Name());
- ret.append(HelpRangeCmdArgs());
- ret.append(" [--" + ARG_TTL + "]");
- ret.append(" [--" + ARG_MAX_KEYS + "=<N>]");
- ret.append(" [--" + ARG_TIMESTAMP + "]");
- ret.append(" [--" + ARG_COUNT_ONLY + "]");
- ret.append(" [--" + ARG_COUNT_DELIM + "=<char>]");
- ret.append(" [--" + ARG_STATS + "]");
- ret.append(" [--" + ARG_TTL_BUCKET + "=<N>]");
- ret.append(" [--" + ARG_TTL_START + "=<N>:- is inclusive]");
- ret.append(" [--" + ARG_TTL_END + "=<N>:- is exclusive]");
- ret.append("\n");
-}
-
-void DBDumperCommand::DoCommand() {
- if (!db_) {
- return;
- }
- // Parse command line args
- uint64_t count = 0;
- if (print_stats_) {
- string stats;
- if (db_->GetProperty("rocksdb.stats", &stats)) {
- fprintf(stdout, "%s\n", stats.c_str());
- }
- }
-
- // Setup key iterator
- Iterator* iter = db_->NewIterator(ReadOptions());
- Status st = iter->status();
- if (!st.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED("Iterator error."
- + st.ToString());
- }
-
- if (!null_from_) {
- iter->Seek(from_);
- } else {
- iter->SeekToFirst();
- }
-
- int max_keys = max_keys_;
- int ttl_start;
- if (!ParseIntOption(option_map_, ARG_TTL_START, ttl_start, exec_state_)) {
- ttl_start = DBWithTTL::kMinTimestamp; // TTL introduction time
- }
- int ttl_end;
- if (!ParseIntOption(option_map_, ARG_TTL_END, ttl_end, exec_state_)) {
- ttl_end = DBWithTTL::kMaxTimestamp; // Max time allowed by TTL feature
- }
- if (ttl_end < ttl_start) {
- fprintf(stderr, "Error: End time can't be less than start time\n");
- delete iter;
- return;
- }
- int time_range = ttl_end - ttl_start;
- int bucket_size;
- if (!ParseIntOption(option_map_, ARG_TTL_BUCKET, bucket_size, exec_state_) ||
- bucket_size <= 0) {
- bucket_size = time_range; // Will have just 1 bucket by default
- }
- //cretaing variables for row count of each type
- string rtype1,rtype2,row,val;
- rtype2 = "";
- uint64_t c=0;
- uint64_t s1=0,s2=0;
-
- // At this point, bucket_size=0 => time_range=0
- uint64_t num_buckets = (bucket_size >= time_range) ? 1 :
- ((time_range + bucket_size - 1) / bucket_size);
- vector<uint64_t> bucket_counts(num_buckets, 0);
- if (is_db_ttl_ && !count_only_ && timestamp_ && !count_delim_) {
- fprintf(stdout, "Dumping key-values from %s to %s\n",
- ReadableTime(ttl_start).c_str(), ReadableTime(ttl_end).c_str());
- }
-
- for (; iter->Valid(); iter->Next()) {
- int rawtime = 0;
- // If end marker was specified, we stop before it
- if (!null_to_ && (iter->key().ToString() >= to_))
- break;
- // Terminate if maximum number of keys have been dumped
- if (max_keys == 0)
- break;
- if (is_db_ttl_) {
- TtlIterator* it_ttl = dynamic_cast<TtlIterator*>(iter);
- assert(it_ttl);
- rawtime = it_ttl->timestamp();
- if (rawtime < ttl_start || rawtime >= ttl_end) {
- continue;
- }
- }
- if (max_keys > 0) {
- --max_keys;
- }
- if (is_db_ttl_ && num_buckets > 1) {
- IncBucketCounts(bucket_counts, ttl_start, time_range, bucket_size,
- rawtime, num_buckets);
- }
- ++count;
- if (count_delim_) {
- rtype1 = "";
- row = iter->key().ToString();
- val = iter->value().ToString();
- s1 = row.size()+val.size();
- for(int j=0;row[j]!=delim_[0] && row[j]!='\0';j++)
- rtype1+=row[j];
- if(rtype2.compare("") && rtype2.compare(rtype1)!=0) {
- fprintf(stdout,"%s => count:%lld\tsize:%lld\n",rtype2.c_str(),
- (long long )c,(long long)s2);
- c=1;
- s2=s1;
- rtype2 = rtype1;
- } else {
- c++;
- s2+=s1;
- rtype2=rtype1;
- }
-
- }
-
-
-
- if (!count_only_ && !count_delim_) {
- if (is_db_ttl_ && timestamp_) {
- fprintf(stdout, "%s ", ReadableTime(rawtime).c_str());
- }
- string str = PrintKeyValue(iter->key().ToString(),
- iter->value().ToString(), is_key_hex_,
- is_value_hex_);
- fprintf(stdout, "%s\n", str.c_str());
- }
- }
-
- if (num_buckets > 1 && is_db_ttl_) {
- PrintBucketCounts(bucket_counts, ttl_start, ttl_end, bucket_size,
- num_buckets);
- } else if(count_delim_) {
- fprintf(stdout,"%s => count:%lld\tsize:%lld\n",rtype2.c_str(),
- (long long )c,(long long)s2);
- } else {
- fprintf(stdout, "Keys in range: %lld\n", (long long) count);
- }
- // Clean up
- delete iter;
-}
-
-const string ReduceDBLevelsCommand::ARG_NEW_LEVELS = "new_levels";
-const string ReduceDBLevelsCommand::ARG_PRINT_OLD_LEVELS = "print_old_levels";
-
-ReduceDBLevelsCommand::ReduceDBLevelsCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_NEW_LEVELS, ARG_PRINT_OLD_LEVELS})),
- old_levels_(1 << 16),
- new_levels_(-1),
- print_old_levels_(false) {
-
-
- ParseIntOption(option_map_, ARG_NEW_LEVELS, new_levels_, exec_state_);
- print_old_levels_ = IsFlagPresent(flags, ARG_PRINT_OLD_LEVELS);
-
- if(new_levels_ <= 0) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- " Use --" + ARG_NEW_LEVELS + " to specify a new level number\n");
- }
-}
-
-vector<string> ReduceDBLevelsCommand::PrepareArgs(const string& db_path,
- int new_levels, bool print_old_level) {
- vector<string> ret;
- ret.push_back("reduce_levels");
- ret.push_back("--" + ARG_DB + "=" + db_path);
- ret.push_back("--" + ARG_NEW_LEVELS + "=" + to_string(new_levels));
- if(print_old_level) {
- ret.push_back("--" + ARG_PRINT_OLD_LEVELS);
- }
- return ret;
-}
-
-void ReduceDBLevelsCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(ReduceDBLevelsCommand::Name());
- ret.append(" --" + ARG_NEW_LEVELS + "=<New number of levels>");
- ret.append(" [--" + ARG_PRINT_OLD_LEVELS + "]");
- ret.append("\n");
-}
-
-Options ReduceDBLevelsCommand::PrepareOptionsForOpenDB() {
- Options opt = LDBCommand::PrepareOptionsForOpenDB();
- opt.num_levels = old_levels_;
- opt.max_bytes_for_level_multiplier_additional.resize(opt.num_levels, 1);
- // Disable size compaction
- opt.max_bytes_for_level_base = 1UL << 50;
- opt.max_bytes_for_level_multiplier = 1;
- opt.max_mem_compaction_level = 0;
- return opt;
-}
-
-Status ReduceDBLevelsCommand::GetOldNumOfLevels(Options& opt,
- int* levels) {
- EnvOptions soptions;
- TableCache tc(db_path_, &opt, soptions, 10);
- const InternalKeyComparator cmp(opt.comparator);
- VersionSet versions(db_path_, &opt, soptions, &tc, &cmp);
- // We rely the VersionSet::Recover to tell us the internal data structures
- // in the db. And the Recover() should never do any change
- // (like LogAndApply) to the manifest file.
- Status st = versions.Recover();
- if (!st.ok()) {
- return st;
- }
- int max = -1;
- for (int i = 0; i < versions.NumberLevels(); i++) {
- if (versions.NumLevelFiles(i)) {
- max = i;
- }
- }
-
- *levels = max + 1;
- return st;
-}
-
-void ReduceDBLevelsCommand::DoCommand() {
- if (new_levels_ <= 1) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Invalid number of levels.\n");
- return;
- }
-
- Status st;
- Options opt = PrepareOptionsForOpenDB();
- int old_level_num = -1;
- st = GetOldNumOfLevels(opt, &old_level_num);
- if (!st.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- return;
- }
-
- if (print_old_levels_) {
- fprintf(stdout, "The old number of levels in use is %d\n", old_level_num);
- }
-
- if (old_level_num <= new_levels_) {
- return;
- }
-
- old_levels_ = old_level_num;
-
- OpenDB();
- if (!db_) {
- return;
- }
- // Compact the whole DB to put all files to the highest level.
- fprintf(stdout, "Compacting the db...\n");
- db_->CompactRange(nullptr, nullptr);
- CloseDB();
-
- EnvOptions soptions;
- TableCache tc(db_path_, &opt, soptions, 10);
- const InternalKeyComparator cmp(opt.comparator);
- VersionSet versions(db_path_, &opt, soptions, &tc, &cmp);
- // We rely the VersionSet::Recover to tell us the internal data structures
- // in the db. And the Recover() should never do any change (like LogAndApply)
- // to the manifest file.
- st = versions.Recover();
- if (!st.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- return;
- }
-
- port::Mutex mu;
- mu.Lock();
- st = versions.ReduceNumberOfLevels(new_levels_, &mu);
- mu.Unlock();
-
- if (!st.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- return;
- }
-}
-
-const string ChangeCompactionStyleCommand::ARG_OLD_COMPACTION_STYLE =
- "old_compaction_style";
-const string ChangeCompactionStyleCommand::ARG_NEW_COMPACTION_STYLE =
- "new_compaction_style";
-
-ChangeCompactionStyleCommand::ChangeCompactionStyleCommand(
- const vector<string>& params, const map<string, string>& options,
- const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_OLD_COMPACTION_STYLE,
- ARG_NEW_COMPACTION_STYLE})),
- old_compaction_style_(-1),
- new_compaction_style_(-1) {
-
- ParseIntOption(option_map_, ARG_OLD_COMPACTION_STYLE, old_compaction_style_,
- exec_state_);
- if (old_compaction_style_ != kCompactionStyleLevel &&
- old_compaction_style_ != kCompactionStyleUniversal) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Use --" + ARG_OLD_COMPACTION_STYLE + " to specify old compaction " +
- "style. Check ldb help for proper compaction style value.\n");
- return;
- }
-
- ParseIntOption(option_map_, ARG_NEW_COMPACTION_STYLE, new_compaction_style_,
- exec_state_);
- if (new_compaction_style_ != kCompactionStyleLevel &&
- new_compaction_style_ != kCompactionStyleUniversal) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Use --" + ARG_NEW_COMPACTION_STYLE + " to specify new compaction " +
- "style. Check ldb help for proper compaction style value.\n");
- return;
- }
-
- if (new_compaction_style_ == old_compaction_style_) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Old compaction style is the same as new compaction style. "
- "Nothing to do.\n");
- return;
- }
-
- if (old_compaction_style_ == kCompactionStyleUniversal &&
- new_compaction_style_ == kCompactionStyleLevel) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Convert from universal compaction to level compaction. "
- "Nothing to do.\n");
- return;
- }
-}
-
-void ChangeCompactionStyleCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(ChangeCompactionStyleCommand::Name());
- ret.append(" --" + ARG_OLD_COMPACTION_STYLE + "=<Old compaction style: 0 " +
- "for level compaction, 1 for universal compaction>");
- ret.append(" --" + ARG_NEW_COMPACTION_STYLE + "=<New compaction style: 0 " +
- "for level compaction, 1 for universal compaction>");
- ret.append("\n");
-}
-
-Options ChangeCompactionStyleCommand::PrepareOptionsForOpenDB() {
- Options opt = LDBCommand::PrepareOptionsForOpenDB();
-
- if (old_compaction_style_ == kCompactionStyleLevel &&
- new_compaction_style_ == kCompactionStyleUniversal) {
- // In order to convert from level compaction to universal compaction, we
- // need to compact all data into a single file and move it to level 0.
- opt.disable_auto_compactions = true;
- opt.target_file_size_base = INT_MAX;
- opt.target_file_size_multiplier = 1;
- opt.max_bytes_for_level_base = INT_MAX;
- opt.max_bytes_for_level_multiplier = 1;
- }
-
- return opt;
-}
-
-void ChangeCompactionStyleCommand::DoCommand() {
- // print db stats before we have made any change
- std::string property;
- std::string files_per_level;
- for (int i = 0; i < db_->NumberLevels(); i++) {
- db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(i),
- &property);
-
- // format print string
- char buf[100];
- snprintf(buf, sizeof(buf), "%s%s", (i ? "," : ""), property.c_str());
- files_per_level += buf;
- }
- fprintf(stdout, "files per level before compaction: %s\n",
- files_per_level.c_str());
-
- // manual compact into a single file and move the file to level 0
- db_->CompactRange(nullptr, nullptr,
- true /* reduce level */,
- 0 /* reduce to level 0 */);
-
- // verify compaction result
- files_per_level = "";
- int num_files = 0;
- for (int i = 0; i < db_->NumberLevels(); i++) {
- db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(i),
- &property);
-
- // format print string
- char buf[100];
- snprintf(buf, sizeof(buf), "%s%s", (i ? "," : ""), property.c_str());
- files_per_level += buf;
-
- num_files = atoi(property.c_str());
-
- // level 0 should have only 1 file
- if (i == 0 && num_files != 1) {
- exec_state_ = LDBCommandExecuteResult::FAILED("Number of db files at "
- "level 0 after compaction is " + std::to_string(num_files) +
- ", not 1.\n");
- return;
- }
- // other levels should have no file
- if (i > 0 && num_files != 0) {
- exec_state_ = LDBCommandExecuteResult::FAILED("Number of db files at "
- "level " + std::to_string(i) + " after compaction is " +
- std::to_string(num_files) + ", not 0.\n");
- return;
- }
- }
-
- fprintf(stdout, "files per level after compaction: %s\n",
- files_per_level.c_str());
-}
-
-class InMemoryHandler : public WriteBatch::Handler {
- public:
-
- virtual void Put(const Slice& key, const Slice& value) {
- putMap_[key.ToString()] = value.ToString();
- }
- virtual void Delete(const Slice& key) {
- deleteList_.push_back(key.ToString(true));
- }
- virtual ~InMemoryHandler() { };
-
- map<string, string> PutMap() {
- return putMap_;
- }
- vector<string> DeleteList() {
- return deleteList_;
- }
-
- private:
- map<string, string> putMap_;
- vector<string> deleteList_;
-};
-
-const string WALDumperCommand::ARG_WAL_FILE = "walfile";
-const string WALDumperCommand::ARG_PRINT_VALUE = "print_value";
-const string WALDumperCommand::ARG_PRINT_HEADER = "header";
-
-WALDumperCommand::WALDumperCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, true,
- BuildCmdLineOptions(
- {ARG_WAL_FILE, ARG_PRINT_HEADER, ARG_PRINT_VALUE})),
- print_header_(false), print_values_(false) {
-
- wal_file_.clear();
-
- map<string, string>::const_iterator itr = options.find(ARG_WAL_FILE);
- if (itr != options.end()) {
- wal_file_ = itr->second;
- }
-
-
- print_header_ = IsFlagPresent(flags, ARG_PRINT_HEADER);
- print_values_ = IsFlagPresent(flags, ARG_PRINT_VALUE);
- if (wal_file_.empty()) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Argument " + ARG_WAL_FILE + " must be specified.");
- }
-}
-
-void WALDumperCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(WALDumperCommand::Name());
- ret.append(" --" + ARG_WAL_FILE + "=<write_ahead_log_file_path>");
- ret.append(" [--" + ARG_PRINT_HEADER + "] ");
- ret.append(" [--" + ARG_PRINT_VALUE + "] ");
- ret.append("\n");
-}
-
-void WALDumperCommand::DoCommand() {
- struct StdErrReporter : public log::Reader::Reporter {
- virtual void Corruption(size_t bytes, const Status& s) {
- cerr<<"Corruption detected in log file "<<s.ToString()<<"\n";
- }
- };
-
- unique_ptr<SequentialFile> file;
- Env* env_ = Env::Default();
- EnvOptions soptions;
- Status status = env_->NewSequentialFile(wal_file_, &file, soptions);
- if (!status.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED("Failed to open WAL file " +
- status.ToString());
- } else {
- StdErrReporter reporter;
- log::Reader reader(move(file), &reporter, true, 0);
- string scratch;
- WriteBatch batch;
- Slice record;
- stringstream row;
- if (print_header_) {
- cout<<"Sequence,Count,ByteSize,Physical Offset,Key(s)";
- if (print_values_) {
- cout << " : value ";
- }
- cout << "\n";
- }
- while(reader.ReadRecord(&record, &scratch)) {
- row.str("");
- if (record.size() < 12) {
- reporter.Corruption(
- record.size(), Status::Corruption("log record too small"));
- } else {
- WriteBatchInternal::SetContents(&batch, record);
- row<<WriteBatchInternal::Sequence(&batch)<<",";
- row<<WriteBatchInternal::Count(&batch)<<",";
- row<<WriteBatchInternal::ByteSize(&batch)<<",";
- row<<reader.LastRecordOffset()<<",";
- InMemoryHandler handler;
- batch.Iterate(&handler);
- row << "PUT : ";
- if (print_values_) {
- for (auto& kv : handler.PutMap()) {
- string k = StringToHex(kv.first);
- string v = StringToHex(kv.second);
- row << k << " : ";
- row << v << " ";
- }
- }
- else {
- for(auto& kv : handler.PutMap()) {
- row << StringToHex(kv.first) << " ";
- }
- }
- row<<",DELETE : ";
- for(string& s : handler.DeleteList()) {
- row << StringToHex(s) << " ";
- }
- row<<"\n";
- }
- cout<<row.str();
- }
- }
-}
-
-
-GetCommand::GetCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, true, BuildCmdLineOptions({ARG_TTL, ARG_HEX,
- ARG_KEY_HEX,
- ARG_VALUE_HEX})) {
-
- if (params.size() != 1) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "<key> must be specified for the get command");
- } else {
- key_ = params.at(0);
- }
-
- if (is_key_hex_) {
- key_ = HexToString(key_);
- }
-}
-
-void GetCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(GetCommand::Name());
- ret.append(" <key>");
- ret.append(" [--" + ARG_TTL + "]");
- ret.append("\n");
-}
-
-void GetCommand::DoCommand() {
- string value;
- Status st = db_->Get(ReadOptions(), key_, &value);
- if (st.ok()) {
- fprintf(stdout, "%s\n",
- (is_value_hex_ ? StringToHex(value) : value).c_str());
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- }
-}
-
-
-ApproxSizeCommand::ApproxSizeCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, true,
- BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
- ARG_FROM, ARG_TO})) {
-
- if (options.find(ARG_FROM) != options.end()) {
- start_key_ = options.find(ARG_FROM)->second;
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_FROM +
- " must be specified for approxsize command");
- return;
- }
-
- if (options.find(ARG_TO) != options.end()) {
- end_key_ = options.find(ARG_TO)->second;
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_TO +
- " must be specified for approxsize command");
- return;
- }
-
- if (is_key_hex_) {
- start_key_ = HexToString(start_key_);
- end_key_ = HexToString(end_key_);
- }
-}
-
-void ApproxSizeCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(ApproxSizeCommand::Name());
- ret.append(HelpRangeCmdArgs());
- ret.append("\n");
-}
-
-void ApproxSizeCommand::DoCommand() {
-
- Range ranges[1];
- ranges[0] = Range(start_key_, end_key_);
- uint64_t sizes[1];
- db_->GetApproximateSizes(ranges, 1, sizes);
- fprintf(stdout, "%lu\n", (unsigned long)sizes[0]);
- /* Weird that GetApproximateSizes() returns void, although documentation
- * says that it returns a Status object.
- if (!st.ok()) {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- }
- */
-}
-
-
-BatchPutCommand::BatchPutCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
- ARG_CREATE_IF_MISSING})) {
-
- if (params.size() < 2) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "At least one <key> <value> pair must be specified batchput.");
- } else if (params.size() % 2 != 0) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "Equal number of <key>s and <value>s must be specified for batchput.");
- } else {
- for (size_t i = 0; i < params.size(); i += 2) {
- string key = params.at(i);
- string value = params.at(i+1);
- key_values_.push_back(pair<string, string>(
- is_key_hex_ ? HexToString(key) : key,
- is_value_hex_ ? HexToString(value) : value));
- }
- }
-}
-
-void BatchPutCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(BatchPutCommand::Name());
- ret.append(" <key> <value> [<key> <value>] [..]");
- ret.append(" [--" + ARG_TTL + "]");
- ret.append("\n");
-}
-
-void BatchPutCommand::DoCommand() {
- WriteBatch batch;
-
- for (vector<pair<string, string>>::const_iterator itr
- = key_values_.begin(); itr != key_values_.end(); itr++) {
- batch.Put(itr->first, itr->second);
- }
- Status st = db_->Write(WriteOptions(), &batch);
- if (st.ok()) {
- fprintf(stdout, "OK\n");
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- }
-}
-
-Options BatchPutCommand::PrepareOptionsForOpenDB() {
- Options opt = LDBCommand::PrepareOptionsForOpenDB();
- opt.create_if_missing = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
- return opt;
-}
-
-
-ScanCommand::ScanCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, true,
- BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX, ARG_TO,
- ARG_VALUE_HEX, ARG_FROM, ARG_TIMESTAMP,
- ARG_MAX_KEYS, ARG_TTL_START, ARG_TTL_END})),
- start_key_specified_(false),
- end_key_specified_(false),
- max_keys_scanned_(-1) {
-
- map<string, string>::const_iterator itr = options.find(ARG_FROM);
- if (itr != options.end()) {
- start_key_ = itr->second;
- if (is_key_hex_) {
- start_key_ = HexToString(start_key_);
- }
- start_key_specified_ = true;
- }
- itr = options.find(ARG_TO);
- if (itr != options.end()) {
- end_key_ = itr->second;
- if (is_key_hex_) {
- end_key_ = HexToString(end_key_);
- }
- end_key_specified_ = true;
- }
-
- itr = options.find(ARG_MAX_KEYS);
- if (itr != options.end()) {
- try {
- max_keys_scanned_ = stoi(itr->second);
- } catch(const invalid_argument&) {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_MAX_KEYS +
- " has an invalid value");
- } catch(const out_of_range&) {
- exec_state_ = LDBCommandExecuteResult::FAILED(ARG_MAX_KEYS +
- " has a value out-of-range");
- }
- }
-}
-
-void ScanCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(ScanCommand::Name());
- ret.append(HelpRangeCmdArgs());
- ret.append(" [--" + ARG_TTL + "]");
- ret.append(" [--" + ARG_TIMESTAMP + "]");
- ret.append(" [--" + ARG_MAX_KEYS + "=<N>q] ");
- ret.append(" [--" + ARG_TTL_START + "=<N>:- is inclusive]");
- ret.append(" [--" + ARG_TTL_END + "=<N>:- is exclusive]");
- ret.append("\n");
-}
-
-void ScanCommand::DoCommand() {
-
- int num_keys_scanned = 0;
- Iterator* it = db_->NewIterator(ReadOptions());
- if (start_key_specified_) {
- it->Seek(start_key_);
- } else {
- it->SeekToFirst();
- }
- int ttl_start;
- if (!ParseIntOption(option_map_, ARG_TTL_START, ttl_start, exec_state_)) {
- ttl_start = DBWithTTL::kMinTimestamp; // TTL introduction time
- }
- int ttl_end;
- if (!ParseIntOption(option_map_, ARG_TTL_END, ttl_end, exec_state_)) {
- ttl_end = DBWithTTL::kMaxTimestamp; // Max time allowed by TTL feature
- }
- if (ttl_end < ttl_start) {
- fprintf(stderr, "Error: End time can't be less than start time\n");
- delete it;
- return;
- }
- if (is_db_ttl_ && timestamp_) {
- fprintf(stdout, "Scanning key-values from %s to %s\n",
- ReadableTime(ttl_start).c_str(), ReadableTime(ttl_end).c_str());
- }
- for ( ;
- it->Valid() && (!end_key_specified_ || it->key().ToString() < end_key_);
- it->Next()) {
- string key = it->key().ToString();
- if (is_db_ttl_) {
- TtlIterator* it_ttl = dynamic_cast<TtlIterator*>(it);
- assert(it_ttl);
- int rawtime = it_ttl->timestamp();
- if (rawtime < ttl_start || rawtime >= ttl_end) {
- continue;
- }
- if (timestamp_) {
- fprintf(stdout, "%s ", ReadableTime(rawtime).c_str());
- }
- }
- string value = it->value().ToString();
- fprintf(stdout, "%s : %s\n",
- (is_key_hex_ ? StringToHex(key) : key).c_str(),
- (is_value_hex_ ? StringToHex(value) : value).c_str()
- );
- num_keys_scanned++;
- if (max_keys_scanned_ >= 0 && num_keys_scanned >= max_keys_scanned_) {
- break;
- }
- }
- if (!it->status().ok()) { // Check for any errors found during the scan
- exec_state_ = LDBCommandExecuteResult::FAILED(it->status().ToString());
- }
- delete it;
-}
-
-
-DeleteCommand::DeleteCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX})) {
-
- if (params.size() != 1) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "KEY must be specified for the delete command");
- } else {
- key_ = params.at(0);
- if (is_key_hex_) {
- key_ = HexToString(key_);
- }
- }
-}
-
-void DeleteCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(DeleteCommand::Name() + " <key>");
- ret.append("\n");
-}
-
-void DeleteCommand::DoCommand() {
- Status st = db_->Delete(WriteOptions(), key_);
- if (st.ok()) {
- fprintf(stdout, "OK\n");
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- }
-}
-
-
-PutCommand::PutCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX, ARG_VALUE_HEX,
- ARG_CREATE_IF_MISSING})) {
-
- if (params.size() != 2) {
- exec_state_ = LDBCommandExecuteResult::FAILED(
- "<key> and <value> must be specified for the put command");
- } else {
- key_ = params.at(0);
- value_ = params.at(1);
- }
-
- if (is_key_hex_) {
- key_ = HexToString(key_);
- }
-
- if (is_value_hex_) {
- value_ = HexToString(value_);
- }
-}
-
-void PutCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(PutCommand::Name());
- ret.append(" <key> <value> ");
- ret.append(" [--" + ARG_TTL + "]");
- ret.append("\n");
-}
-
-void PutCommand::DoCommand() {
- Status st = db_->Put(WriteOptions(), key_, value_);
- if (st.ok()) {
- fprintf(stdout, "OK\n");
- } else {
- exec_state_ = LDBCommandExecuteResult::FAILED(st.ToString());
- }
-}
-
-Options PutCommand::PrepareOptionsForOpenDB() {
- Options opt = LDBCommand::PrepareOptionsForOpenDB();
- opt.create_if_missing = IsFlagPresent(flags_, ARG_CREATE_IF_MISSING);
- return opt;
-}
-
-
-const char* DBQuerierCommand::HELP_CMD = "help";
-const char* DBQuerierCommand::GET_CMD = "get";
-const char* DBQuerierCommand::PUT_CMD = "put";
-const char* DBQuerierCommand::DELETE_CMD = "delete";
-
-DBQuerierCommand::DBQuerierCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags) :
- LDBCommand(options, flags, false,
- BuildCmdLineOptions({ARG_TTL, ARG_HEX, ARG_KEY_HEX,
- ARG_VALUE_HEX})) {
-
-}
-
-void DBQuerierCommand::Help(string& ret) {
- ret.append(" ");
- ret.append(DBQuerierCommand::Name());
- ret.append(" [--" + ARG_TTL + "]");
- ret.append("\n");
- ret.append(" Starts a REPL shell. Type help for list of available "
- "commands.");
- ret.append("\n");
-}
-
-void DBQuerierCommand::DoCommand() {
- if (!db_) {
- return;
- }
-
- ReadOptions read_options;
- WriteOptions write_options;
-
- string line;
- string key;
- string value;
- while (getline(cin, line, '\n')) {
-
- // Parse line into vector<string>
- vector<string> tokens;
- size_t pos = 0;
- while (true) {
- size_t pos2 = line.find(' ', pos);
- if (pos2 == string::npos) {
- break;
- }
- tokens.push_back(line.substr(pos, pos2-pos));
- pos = pos2 + 1;
- }
- tokens.push_back(line.substr(pos));
-
- const string& cmd = tokens[0];
-
- if (cmd == HELP_CMD) {
- fprintf(stdout,
- "get <key>\n"
- "put <key> <value>\n"
- "delete <key>\n");
- } else if (cmd == DELETE_CMD && tokens.size() == 2) {
- key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
- db_->Delete(write_options, Slice(key));
- fprintf(stdout, "Successfully deleted %s\n", tokens[1].c_str());
- } else if (cmd == PUT_CMD && tokens.size() == 3) {
- key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
- value = (is_value_hex_ ? HexToString(tokens[2]) : tokens[2]);
- db_->Put(write_options, Slice(key), Slice(value));
- fprintf(stdout, "Successfully put %s %s\n",
- tokens[1].c_str(), tokens[2].c_str());
- } else if (cmd == GET_CMD && tokens.size() == 2) {
- key = (is_key_hex_ ? HexToString(tokens[1]) : tokens[1]);
- if (db_->Get(read_options, Slice(key), &value).ok()) {
- fprintf(stdout, "%s\n", PrintKeyValue(key, value,
- is_key_hex_, is_value_hex_).c_str());
- } else {
- fprintf(stdout, "Not found %s\n", tokens[1].c_str());
- }
- } else {
- fprintf(stdout, "Unknown command %s\n", line.c_str());
- }
- }
-}
-
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-#include <string>
-#include <iostream>
-#include <sstream>
-#include <stdlib.h>
-#include <algorithm>
-#include <stdio.h>
-
-#include "db/version_set.h"
-#include "rocksdb/env.h"
-#include "rocksdb/options.h"
-#include "rocksdb/iterator.h"
-#include "rocksdb/slice.h"
-#include "util/logging.h"
-#include "util/ldb_cmd_execute_result.h"
-#include "util/string_util.h"
-#include "utilities/utility_db.h"
-#include "utilities/ttl/db_ttl.h"
-
-using std::string;
-using std::map;
-using std::vector;
-using std::ostringstream;
-
-namespace rocksdb {
-
-class LDBCommand {
-public:
-
- // Command-line arguments
- static const string ARG_DB;
- static const string ARG_HEX;
- static const string ARG_KEY_HEX;
- static const string ARG_VALUE_HEX;
- static const string ARG_TTL;
- static const string ARG_TTL_START;
- static const string ARG_TTL_END;
- static const string ARG_TIMESTAMP;
- static const string ARG_FROM;
- static const string ARG_TO;
- static const string ARG_MAX_KEYS;
- static const string ARG_BLOOM_BITS;
- static const string ARG_COMPRESSION_TYPE;
- static const string ARG_BLOCK_SIZE;
- static const string ARG_AUTO_COMPACTION;
- static const string ARG_WRITE_BUFFER_SIZE;
- static const string ARG_FILE_SIZE;
- static const string ARG_CREATE_IF_MISSING;
-
- static LDBCommand* InitFromCmdLineArgs(
- const vector<string>& args,
- const Options& options = Options()
- );
-
- static LDBCommand* InitFromCmdLineArgs(
- int argc,
- char** argv,
- const Options& options = Options()
- );
-
- bool ValidateCmdLineOptions();
-
- virtual Options PrepareOptionsForOpenDB();
-
- virtual void SetOptions(Options options) {
- options_ = options;
- }
-
- virtual bool NoDBOpen() {
- return false;
- }
-
- virtual ~LDBCommand() {
- if (db_ != nullptr) {
- delete db_;
- db_ = nullptr;
- }
- }
-
- /* Run the command, and return the execute result. */
- void Run() {
- if (!exec_state_.IsNotStarted()) {
- return;
- }
-
- if (db_ == nullptr && !NoDBOpen()) {
- OpenDB();
- if (!exec_state_.IsNotStarted()) {
- return;
- }
- }
-
- DoCommand();
- if (exec_state_.IsNotStarted()) {
- exec_state_ = LDBCommandExecuteResult::SUCCEED("");
- }
-
- if (db_ != nullptr) {
- CloseDB ();
- }
- }
-
- virtual void DoCommand() = 0;
-
- LDBCommandExecuteResult GetExecuteState() {
- return exec_state_;
- }
-
- void ClearPreviousRunState() {
- exec_state_.Reset();
- }
-
- static string HexToString(const string& str) {
- string parsed;
- if (str[0] != '0' || str[1] != 'x') {
- fprintf(stderr, "Invalid hex input %s. Must start with 0x\n",
- str.c_str());
- throw "Invalid hex input";
- }
-
- for (unsigned int i = 2; i < str.length();) {
- int c;
- sscanf(str.c_str() + i, "%2X", &c);
- parsed.push_back(c);
- i += 2;
- }
- return parsed;
- }
-
- static string StringToHex(const string& str) {
- string result = "0x";
- char buf[10];
- for (size_t i = 0; i < str.length(); i++) {
- snprintf(buf, 10, "%02X", (unsigned char)str[i]);
- result += buf;
- }
- return result;
- }
-
- static const char* DELIM;
-
-protected:
-
- LDBCommandExecuteResult exec_state_;
- string db_path_;
- DB* db_;
- StackableDB* sdb_;
-
- /**
- * true implies that this command can work if the db is opened in read-only
- * mode.
- */
- bool is_read_only_;
-
- /** If true, the key is input/output as hex in get/put/scan/delete etc. */
- bool is_key_hex_;
-
- /** If true, the value is input/output as hex in get/put/scan/delete etc. */
- bool is_value_hex_;
-
- /** If true, the value is treated as timestamp suffixed */
- bool is_db_ttl_;
-
- // If true, the kvs are output with their insert/modify timestamp in a ttl db
- bool timestamp_;
-
- /**
- * Map of options passed on the command-line.
- */
- const map<string, string> option_map_;
-
- /**
- * Flags passed on the command-line.
- */
- const vector<string> flags_;
-
- /** List of command-line options valid for this command */
- const vector<string> valid_cmd_line_options_;
-
- bool ParseKeyValue(const string& line, string* key, string* value,
- bool is_key_hex, bool is_value_hex);
-
- LDBCommand(const map<string, string>& options, const vector<string>& flags,
- bool is_read_only, const vector<string>& valid_cmd_line_options) :
- db_(nullptr),
- is_read_only_(is_read_only),
- is_key_hex_(false),
- is_value_hex_(false),
- is_db_ttl_(false),
- timestamp_(false),
- option_map_(options),
- flags_(flags),
- valid_cmd_line_options_(valid_cmd_line_options) {
-
- map<string, string>::const_iterator itr = options.find(ARG_DB);
- if (itr != options.end()) {
- db_path_ = itr->second;
- }
-
- is_key_hex_ = IsKeyHex(options, flags);
- is_value_hex_ = IsValueHex(options, flags);
- is_db_ttl_ = IsFlagPresent(flags, ARG_TTL);
- timestamp_ = IsFlagPresent(flags, ARG_TIMESTAMP);
- }
-
- void OpenDB() {
- Options opt = PrepareOptionsForOpenDB();
- if (!exec_state_.IsNotStarted()) {
- return;
- }
- // Open the DB.
- Status st;
- if (is_db_ttl_) {
- if (is_read_only_) {
- st = UtilityDB::OpenTtlDB(opt, db_path_, &sdb_, 0, true);
- } else {
- st = UtilityDB::OpenTtlDB(opt, db_path_, &sdb_);
- }
- db_ = sdb_;
- } else if (is_read_only_) {
- st = DB::OpenForReadOnly(opt, db_path_, &db_);
- } else {
- st = DB::Open(opt, db_path_, &db_);
- }
- if (!st.ok()) {
- string msg = st.ToString();
- exec_state_ = LDBCommandExecuteResult::FAILED(msg);
- }
-
- options_ = opt;
- }
-
- void CloseDB () {
- if (db_ != nullptr) {
- delete db_;
- db_ = nullptr;
- }
- }
-
- static string PrintKeyValue(const string& key, const string& value,
- bool is_key_hex, bool is_value_hex) {
- string result;
- result.append(is_key_hex ? StringToHex(key) : key);
- result.append(DELIM);
- result.append(is_value_hex ? StringToHex(value) : value);
- return result;
- }
-
- static string PrintKeyValue(const string& key, const string& value,
- bool is_hex) {
- return PrintKeyValue(key, value, is_hex, is_hex);
- }
-
- /**
- * Return true if the specified flag is present in the specified flags vector
- */
- static bool IsFlagPresent(const vector<string>& flags, const string& flag) {
- return (std::find(flags.begin(), flags.end(), flag) != flags.end());
- }
-
- static string HelpRangeCmdArgs() {
- ostringstream str_stream;
- str_stream << " ";
- str_stream << "[--" << ARG_FROM << "] ";
- str_stream << "[--" << ARG_TO << "] ";
- return str_stream.str();
- }
-
- /**
- * A helper function that returns a list of command line options
- * used by this command. It includes the common options and the ones
- * passed in.
- */
- vector<string> BuildCmdLineOptions(vector<string> options) {
- vector<string> ret = {ARG_DB, ARG_BLOOM_BITS, ARG_BLOCK_SIZE,
- ARG_AUTO_COMPACTION, ARG_COMPRESSION_TYPE,
- ARG_WRITE_BUFFER_SIZE, ARG_FILE_SIZE};
- ret.insert(ret.end(), options.begin(), options.end());
- return ret;
- }
-
- bool ParseIntOption(const map<string, string>& options, const string& option,
- int& value, LDBCommandExecuteResult& exec_state);
-
- bool ParseStringOption(const map<string, string>& options,
- const string& option, string* value);
-
- Options options_;
-
-private:
-
- /**
- * Interpret command line options and flags to determine if the key
- * should be input/output in hex.
- */
- bool IsKeyHex(const map<string, string>& options,
- const vector<string>& flags) {
- return (IsFlagPresent(flags, ARG_HEX) ||
- IsFlagPresent(flags, ARG_KEY_HEX) ||
- ParseBooleanOption(options, ARG_HEX, false) ||
- ParseBooleanOption(options, ARG_KEY_HEX, false));
- }
-
- /**
- * Interpret command line options and flags to determine if the value
- * should be input/output in hex.
- */
- bool IsValueHex(const map<string, string>& options,
- const vector<string>& flags) {
- return (IsFlagPresent(flags, ARG_HEX) ||
- IsFlagPresent(flags, ARG_VALUE_HEX) ||
- ParseBooleanOption(options, ARG_HEX, false) ||
- ParseBooleanOption(options, ARG_VALUE_HEX, false));
- }
-
- /**
- * Returns the value of the specified option as a boolean.
- * default_val is used if the option is not found in options.
- * Throws an exception if the value of the option is not
- * "true" or "false" (case insensitive).
- */
- bool ParseBooleanOption(const map<string, string>& options,
- const string& option, bool default_val) {
-
- map<string, string>::const_iterator itr = options.find(option);
- if (itr != options.end()) {
- string option_val = itr->second;
- return StringToBool(itr->second);
- }
- return default_val;
- }
-
- /**
- * Converts val to a boolean.
- * val must be either true or false (case insensitive).
- * Otherwise an exception is thrown.
- */
- bool StringToBool(string val) {
- std::transform(val.begin(), val.end(), val.begin(), ::tolower);
- if (val == "true") {
- return true;
- } else if (val == "false") {
- return false;
- } else {
- throw "Invalid value for boolean argument";
- }
- }
-
- static LDBCommand* SelectCommand(
- const string& cmd,
- const vector<string>& cmdParams,
- const map<string, string>& option_map,
- const vector<string>& flags
- );
-
-};
-
-class CompactorCommand: public LDBCommand {
-public:
- static string Name() { return "compact"; }
-
- CompactorCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- static void Help(string& ret);
-
- virtual void DoCommand();
-
-private:
- bool null_from_;
- string from_;
- bool null_to_;
- string to_;
-};
-
-class DBDumperCommand: public LDBCommand {
-public:
- static string Name() { return "dump"; }
-
- DBDumperCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- static void Help(string& ret);
-
- virtual void DoCommand();
-
-private:
- bool null_from_;
- string from_;
- bool null_to_;
- string to_;
- int max_keys_;
- string delim_;
- bool count_only_;
- bool count_delim_;
- bool print_stats_;
-
- static const string ARG_COUNT_ONLY;
- static const string ARG_COUNT_DELIM;
- static const string ARG_STATS;
- static const string ARG_TTL_BUCKET;
-};
-
-class InternalDumpCommand: public LDBCommand {
-public:
- static string Name() { return "idump"; }
-
- InternalDumpCommand(const vector<string>& params,
- const map<string, string>& options,
- const vector<string>& flags);
-
- static void Help(string& ret);
-
- virtual void DoCommand();
-
-private:
- bool has_from_;
- string from_;
- bool has_to_;
- string to_;
- int max_keys_;
- string delim_;
- bool count_only_;
- bool count_delim_;
- bool print_stats_;
- bool is_input_key_hex_;
-
- static const string ARG_DELIM;
- static const string ARG_COUNT_ONLY;
- static const string ARG_COUNT_DELIM;
- static const string ARG_STATS;
- static const string ARG_INPUT_KEY_HEX;
-};
-
-class DBLoaderCommand: public LDBCommand {
-public:
- static string Name() { return "load"; }
-
- DBLoaderCommand(string& db_name, vector<string>& args);
-
- DBLoaderCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- static void Help(string& ret);
- virtual void DoCommand();
-
- virtual Options PrepareOptionsForOpenDB();
-
-private:
- bool create_if_missing_;
- bool disable_wal_;
- bool bulk_load_;
- bool compact_;
-
- static const string ARG_DISABLE_WAL;
- static const string ARG_BULK_LOAD;
- static const string ARG_COMPACT;
-};
-
-class ManifestDumpCommand: public LDBCommand {
-public:
- static string Name() { return "manifest_dump"; }
-
- ManifestDumpCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- static void Help(string& ret);
- virtual void DoCommand();
-
- virtual bool NoDBOpen() {
- return true;
- }
-
-private:
- bool verbose_;
- string path_;
-
- static const string ARG_VERBOSE;
- static const string ARG_PATH;
-};
-
-class ReduceDBLevelsCommand : public LDBCommand {
-public:
- static string Name() { return "reduce_levels"; }
-
- ReduceDBLevelsCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- virtual Options PrepareOptionsForOpenDB();
-
- virtual void DoCommand();
-
- virtual bool NoDBOpen() {
- return true;
- }
-
- static void Help(string& msg);
-
- static vector<string> PrepareArgs(const string& db_path, int new_levels,
- bool print_old_level = false);
-
-private:
- int old_levels_;
- int new_levels_;
- bool print_old_levels_;
-
- static const string ARG_NEW_LEVELS;
- static const string ARG_PRINT_OLD_LEVELS;
-
- Status GetOldNumOfLevels(Options& opt, int* levels);
-};
-
-class ChangeCompactionStyleCommand : public LDBCommand {
-public:
- static string Name() { return "change_compaction_style"; }
-
- ChangeCompactionStyleCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- virtual Options PrepareOptionsForOpenDB();
-
- virtual void DoCommand();
-
- static void Help(string& msg);
-
-private:
- int old_compaction_style_;
- int new_compaction_style_;
-
- static const string ARG_OLD_COMPACTION_STYLE;
- static const string ARG_NEW_COMPACTION_STYLE;
-};
-
-class WALDumperCommand : public LDBCommand {
-public:
- static string Name() { return "dump_wal"; }
-
- WALDumperCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- virtual bool NoDBOpen() {
- return true;
- }
-
- static void Help(string& ret);
- virtual void DoCommand();
-
-private:
- bool print_header_;
- string wal_file_;
- bool print_values_;
-
- static const string ARG_WAL_FILE;
- static const string ARG_PRINT_HEADER;
- static const string ARG_PRINT_VALUE;
-};
-
-
-class GetCommand : public LDBCommand {
-public:
- static string Name() { return "get"; }
-
- GetCommand(const vector<string>& params, const map<string, string>& options,
- const vector<string>& flags);
-
- virtual void DoCommand();
-
- static void Help(string& ret);
-
-private:
- string key_;
-};
-
-class ApproxSizeCommand : public LDBCommand {
-public:
- static string Name() { return "approxsize"; }
-
- ApproxSizeCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- virtual void DoCommand();
-
- static void Help(string& ret);
-
-private:
- string start_key_;
- string end_key_;
-};
-
-class BatchPutCommand : public LDBCommand {
-public:
- static string Name() { return "batchput"; }
-
- BatchPutCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- virtual void DoCommand();
-
- static void Help(string& ret);
-
- virtual Options PrepareOptionsForOpenDB();
-
-private:
- /**
- * The key-values to be inserted.
- */
- vector<std::pair<string, string>> key_values_;
-};
-
-class ScanCommand : public LDBCommand {
-public:
- static string Name() { return "scan"; }
-
- ScanCommand(const vector<string>& params, const map<string, string>& options,
- const vector<string>& flags);
-
- virtual void DoCommand();
-
- static void Help(string& ret);
-
-private:
- string start_key_;
- string end_key_;
- bool start_key_specified_;
- bool end_key_specified_;
- int max_keys_scanned_;
-};
-
-class DeleteCommand : public LDBCommand {
-public:
- static string Name() { return "delete"; }
-
- DeleteCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- virtual void DoCommand();
-
- static void Help(string& ret);
-
-private:
- string key_;
-};
-
-class PutCommand : public LDBCommand {
-public:
- static string Name() { return "put"; }
-
- PutCommand(const vector<string>& params, const map<string, string>& options,
- const vector<string>& flags);
-
- virtual void DoCommand();
-
- static void Help(string& ret);
-
- virtual Options PrepareOptionsForOpenDB();
-
-private:
- string key_;
- string value_;
-};
-
-/**
- * Command that starts up a REPL shell that allows
- * get/put/delete.
- */
-class DBQuerierCommand: public LDBCommand {
-public:
- static string Name() { return "query"; }
-
- DBQuerierCommand(const vector<string>& params,
- const map<string, string>& options, const vector<string>& flags);
-
- static void Help(string& ret);
-
- virtual void DoCommand();
-
-private:
- static const char* HELP_CMD;
- static const char* GET_CMD;
- static const char* PUT_CMD;
- static const char* DELETE_CMD;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-
-namespace rocksdb {
-
-class LDBCommandExecuteResult {
-public:
- enum State {
- EXEC_NOT_STARTED = 0, EXEC_SUCCEED = 1, EXEC_FAILED = 2,
- };
-
- LDBCommandExecuteResult() {
- state_ = EXEC_NOT_STARTED;
- message_ = "";
- }
-
- LDBCommandExecuteResult(State state, std::string& msg) {
- state_ = state;
- message_ = msg;
- }
-
- std::string ToString() {
- std::string ret;
- switch (state_) {
- case EXEC_SUCCEED:
- break;
- case EXEC_FAILED:
- ret.append("Failed: ");
- break;
- case EXEC_NOT_STARTED:
- ret.append("Not started: ");
- }
- if (!message_.empty()) {
- ret.append(message_);
- }
- return ret;
- }
-
- void Reset() {
- state_ = EXEC_NOT_STARTED;
- message_ = "";
- }
-
- bool IsSucceed() {
- return state_ == EXEC_SUCCEED;
- }
-
- bool IsNotStarted() {
- return state_ == EXEC_NOT_STARTED;
- }
-
- bool IsFailed() {
- return state_ == EXEC_FAILED;
- }
-
- static LDBCommandExecuteResult SUCCEED(std::string msg) {
- return LDBCommandExecuteResult(EXEC_SUCCEED, msg);
- }
-
- static LDBCommandExecuteResult FAILED(std::string msg) {
- return LDBCommandExecuteResult(EXEC_FAILED, msg);
- }
-
-private:
- State state_;
- std::string message_;
-
- bool operator==(const LDBCommandExecuteResult&);
- bool operator!=(const LDBCommandExecuteResult&);
-};
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "rocksdb/ldb_tool.h"
-#include "util/ldb_cmd.h"
-
-namespace rocksdb {
-
-class LDBCommandRunner {
-public:
-
- static void PrintHelp(const char* exec_name) {
- string ret;
-
- ret.append("ldb - LevelDB Tool");
- ret.append("\n\n");
- ret.append("commands MUST specify --" + LDBCommand::ARG_DB +
- "=<full_path_to_db_directory> when necessary\n");
- ret.append("\n");
- ret.append("The following optional parameters control if keys/values are "
- "input/output as hex or as plain strings:\n");
- ret.append(" --" + LDBCommand::ARG_KEY_HEX +
- " : Keys are input/output as hex\n");
- ret.append(" --" + LDBCommand::ARG_VALUE_HEX +
- " : Values are input/output as hex\n");
- ret.append(" --" + LDBCommand::ARG_HEX +
- " : Both keys and values are input/output as hex\n");
- ret.append("\n");
-
- ret.append("The following optional parameters control the database "
- "internals:\n");
- ret.append(" --" + LDBCommand::ARG_TTL +
- " with 'put','get','scan','dump','query','batchput'"
- " : DB supports ttl and value is internally timestamp-suffixed\n");
- ret.append(" --" + LDBCommand::ARG_BLOOM_BITS + "=<int,e.g.:14>\n");
- ret.append(" --" + LDBCommand::ARG_COMPRESSION_TYPE +
- "=<no|snappy|zlib|bzip2>\n");
- ret.append(" --" + LDBCommand::ARG_BLOCK_SIZE +
- "=<block_size_in_bytes>\n");
- ret.append(" --" + LDBCommand::ARG_AUTO_COMPACTION + "=<true|false>\n");
- ret.append(" --" + LDBCommand::ARG_WRITE_BUFFER_SIZE +
- "=<int,e.g.:4194304>\n");
- ret.append(" --" + LDBCommand::ARG_FILE_SIZE + "=<int,e.g.:2097152>\n");
-
- ret.append("\n\n");
- ret.append("Data Access Commands:\n");
- PutCommand::Help(ret);
- GetCommand::Help(ret);
- BatchPutCommand::Help(ret);
- ScanCommand::Help(ret);
- DeleteCommand::Help(ret);
- DBQuerierCommand::Help(ret);
- ApproxSizeCommand::Help(ret);
-
- ret.append("\n\n");
- ret.append("Admin Commands:\n");
- WALDumperCommand::Help(ret);
- CompactorCommand::Help(ret);
- ReduceDBLevelsCommand::Help(ret);
- ChangeCompactionStyleCommand::Help(ret);
- DBDumperCommand::Help(ret);
- DBLoaderCommand::Help(ret);
- ManifestDumpCommand::Help(ret);
- InternalDumpCommand::Help(ret);
-
- fprintf(stderr, "%s\n", ret.c_str());
- }
-
- static void RunCommand(int argc, char** argv, Options options) {
- if (argc <= 2) {
- PrintHelp(argv[0]);
- exit(1);
- }
-
- LDBCommand* cmdObj = LDBCommand::InitFromCmdLineArgs(argc, argv, options);
- if (cmdObj == nullptr) {
- fprintf(stderr, "Unknown command\n");
- PrintHelp(argv[0]);
- exit(1);
- }
-
- if (!cmdObj->ValidateCmdLineOptions()) {
- exit(1);
- }
-
- cmdObj->Run();
- LDBCommandExecuteResult ret = cmdObj->GetExecuteState();
- fprintf(stderr, "%s\n", ret.ToString().c_str());
- delete cmdObj;
-
- exit(ret.IsFailed());
- }
-
-};
-
-
-void LDBTool::Run(int argc, char** argv, Options options) {
- LDBCommandRunner::RunCommand(argc, argv, options);
-}
-} // namespace rocksdb
-
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/logging.h"
-
-#include <errno.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "rocksdb/env.h"
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-void AppendNumberTo(std::string* str, uint64_t num) {
- char buf[30];
- snprintf(buf, sizeof(buf), "%llu", (unsigned long long) num);
- str->append(buf);
-}
-
-void AppendEscapedStringTo(std::string* str, const Slice& value) {
- for (size_t i = 0; i < value.size(); i++) {
- char c = value[i];
- if (c >= ' ' && c <= '~') {
- str->push_back(c);
- } else {
- char buf[10];
- snprintf(buf, sizeof(buf), "\\x%02x",
- static_cast<unsigned int>(c) & 0xff);
- str->append(buf);
- }
- }
-}
-
-std::string NumberToString(uint64_t num) {
- std::string r;
- AppendNumberTo(&r, num);
- return r;
-}
-
-std::string EscapeString(const Slice& value) {
- std::string r;
- AppendEscapedStringTo(&r, value);
- return r;
-}
-
-bool ConsumeChar(Slice* in, char c) {
- if (!in->empty() && (*in)[0] == c) {
- in->remove_prefix(1);
- return true;
- } else {
- return false;
- }
-}
-
-bool ConsumeDecimalNumber(Slice* in, uint64_t* val) {
- uint64_t v = 0;
- int digits = 0;
- while (!in->empty()) {
- char c = (*in)[0];
- if (c >= '0' && c <= '9') {
- ++digits;
- const unsigned int delta = (c - '0');
- static const uint64_t kMaxUint64 = ~static_cast<uint64_t>(0);
- if (v > kMaxUint64/10 ||
- (v == kMaxUint64/10 && delta > kMaxUint64%10)) {
- // Overflow
- return false;
- }
- v = (v * 10) + delta;
- in->remove_prefix(1);
- } else {
- break;
- }
- }
- *val = v;
- return (digits > 0);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Must not be included from any .h files to avoid polluting the namespace
-// with macros.
-
-#pragma once
-#include <stdio.h>
-#include <stdint.h>
-#include <string>
-#include "port/port.h"
-
-namespace rocksdb {
-
-class Slice;
-class WritableFile;
-
-// Append a human-readable printout of "num" to *str
-extern void AppendNumberTo(std::string* str, uint64_t num);
-
-// Append a human-readable printout of "value" to *str.
-// Escapes any non-printable characters found in "value".
-extern void AppendEscapedStringTo(std::string* str, const Slice& value);
-
-// Return a human-readable printout of "num"
-extern std::string NumberToString(uint64_t num);
-
-// Return a human-readable version of "value".
-// Escapes any non-printable characters found in "value".
-extern std::string EscapeString(const Slice& value);
-
-// If *in starts with "c", advances *in past the first character and
-// returns true. Otherwise, returns false.
-extern bool ConsumeChar(Slice* in, char c);
-
-// Parse a human-readable number from "*in" into *value. On success,
-// advances "*in" past the consumed number and sets "*val" to the
-// numeric value. Otherwise, returns false and leaves *in in an
-// unspecified state.
-extern bool ConsumeDecimalNumber(Slice* in, uint64_t* val);
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Test for issue 178: a manual compaction causes deleted data to reappear.
-#include <iostream>
-#include <sstream>
-#include <cstdlib>
-
-#include "rocksdb/db.h"
-#include "rocksdb/write_batch.h"
-#include "util/testharness.h"
-
-namespace {
-
-const int kNumKeys = 1100000;
-
-std::string Key1(int i) {
- char buf[100];
- snprintf(buf, sizeof(buf), "my_key_%d", i);
- return buf;
-}
-
-std::string Key2(int i) {
- return Key1(i) + "_xxx";
-}
-
-class ManualCompactionTest { };
-
-TEST(ManualCompactionTest, Test) {
- // Get rid of any state from an old run.
- std::string dbpath = rocksdb::test::TmpDir() + "/rocksdb_cbug_test";
- DestroyDB(dbpath, rocksdb::Options());
-
- // Open database. Disable compression since it affects the creation
- // of layers and the code below is trying to test against a very
- // specific scenario.
- rocksdb::DB* db;
- rocksdb::Options db_options;
- db_options.create_if_missing = true;
- db_options.compression = rocksdb::kNoCompression;
- ASSERT_OK(rocksdb::DB::Open(db_options, dbpath, &db));
-
- // create first key range
- rocksdb::WriteBatch batch;
- for (int i = 0; i < kNumKeys; i++) {
- batch.Put(Key1(i), "value for range 1 key");
- }
- ASSERT_OK(db->Write(rocksdb::WriteOptions(), &batch));
-
- // create second key range
- batch.Clear();
- for (int i = 0; i < kNumKeys; i++) {
- batch.Put(Key2(i), "value for range 2 key");
- }
- ASSERT_OK(db->Write(rocksdb::WriteOptions(), &batch));
-
- // delete second key range
- batch.Clear();
- for (int i = 0; i < kNumKeys; i++) {
- batch.Delete(Key2(i));
- }
- ASSERT_OK(db->Write(rocksdb::WriteOptions(), &batch));
-
- // compact database
- std::string start_key = Key1(0);
- std::string end_key = Key1(kNumKeys - 1);
- rocksdb::Slice least(start_key.data(), start_key.size());
- rocksdb::Slice greatest(end_key.data(), end_key.size());
-
- // commenting out the line below causes the example to work correctly
- db->CompactRange(&least, &greatest);
-
- // count the keys
- rocksdb::Iterator* iter = db->NewIterator(rocksdb::ReadOptions());
- int num_keys = 0;
- for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
- num_keys++;
- }
- delete iter;
- ASSERT_EQ(kNumKeys, num_keys) << "Bad number of keys";
-
- // close database
- delete db;
- DestroyDB(dbpath, rocksdb::Options());
-}
-
-} // anonymous namespace
-
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-/*
- Murmurhash from http://sites.google.com/site/murmurhash/
-
- All code is released to the public domain. For business purposes, Murmurhash is
- under the MIT license.
-*/
-#include "murmurhash.h"
-
-#if defined(__x86_64__)
-
-// -------------------------------------------------------------------
-//
-// The same caveats as 32-bit MurmurHash2 apply here - beware of alignment
-// and endian-ness issues if used across multiple platforms.
-//
-// 64-bit hash for 64-bit platforms
-
-uint64_t MurmurHash64A ( const void * key, int len, unsigned int seed )
-{
- const uint64_t m = 0xc6a4a7935bd1e995;
- const int r = 47;
-
- uint64_t h = seed ^ (len * m);
-
- const uint64_t * data = (const uint64_t *)key;
- const uint64_t * end = data + (len/8);
-
- while(data != end)
- {
- uint64_t k = *data++;
-
- k *= m;
- k ^= k >> r;
- k *= m;
-
- h ^= k;
- h *= m;
- }
-
- const unsigned char * data2 = (const unsigned char*)data;
-
- switch(len & 7)
- {
- case 7: h ^= ((uint64_t)data2[6]) << 48;
- case 6: h ^= ((uint64_t)data2[5]) << 40;
- case 5: h ^= ((uint64_t)data2[4]) << 32;
- case 4: h ^= ((uint64_t)data2[3]) << 24;
- case 3: h ^= ((uint64_t)data2[2]) << 16;
- case 2: h ^= ((uint64_t)data2[1]) << 8;
- case 1: h ^= ((uint64_t)data2[0]);
- h *= m;
- };
-
- h ^= h >> r;
- h *= m;
- h ^= h >> r;
-
- return h;
-}
-
-#elif defined(__i386__)
-
-// -------------------------------------------------------------------
-//
-// Note - This code makes a few assumptions about how your machine behaves -
-//
-// 1. We can read a 4-byte value from any address without crashing
-// 2. sizeof(int) == 4
-//
-// And it has a few limitations -
-//
-// 1. It will not work incrementally.
-// 2. It will not produce the same results on little-endian and big-endian
-// machines.
-
-unsigned int MurmurHash2 ( const void * key, int len, unsigned int seed )
-{
- // 'm' and 'r' are mixing constants generated offline.
- // They're not really 'magic', they just happen to work well.
-
- const unsigned int m = 0x5bd1e995;
- const int r = 24;
-
- // Initialize the hash to a 'random' value
-
- unsigned int h = seed ^ len;
-
- // Mix 4 bytes at a time into the hash
-
- const unsigned char * data = (const unsigned char *)key;
-
- while(len >= 4)
- {
- unsigned int k = *(unsigned int *)data;
-
- k *= m;
- k ^= k >> r;
- k *= m;
-
- h *= m;
- h ^= k;
-
- data += 4;
- len -= 4;
- }
-
- // Handle the last few bytes of the input array
-
- switch(len)
- {
- case 3: h ^= data[2] << 16;
- case 2: h ^= data[1] << 8;
- case 1: h ^= data[0];
- h *= m;
- };
-
- // Do a few final mixes of the hash to ensure the last few
- // bytes are well-incorporated.
-
- h ^= h >> 13;
- h *= m;
- h ^= h >> 15;
-
- return h;
-}
-
-#else
-
-// -------------------------------------------------------------------
-//
-// Same as MurmurHash2, but endian- and alignment-neutral.
-// Half the speed though, alas.
-
-unsigned int MurmurHashNeutral2 ( const void * key, int len, unsigned int seed )
-{
- const unsigned int m = 0x5bd1e995;
- const int r = 24;
-
- unsigned int h = seed ^ len;
-
- const unsigned char * data = (const unsigned char *)key;
-
- while(len >= 4)
- {
- unsigned int k;
-
- k = data[0];
- k |= data[1] << 8;
- k |= data[2] << 16;
- k |= data[3] << 24;
-
- k *= m;
- k ^= k >> r;
- k *= m;
-
- h *= m;
- h ^= k;
-
- data += 4;
- len -= 4;
- }
-
- switch(len)
- {
- case 3: h ^= data[2] << 16;
- case 2: h ^= data[1] << 8;
- case 1: h ^= data[0];
- h *= m;
- };
-
- h ^= h >> 13;
- h *= m;
- h ^= h >> 15;
-
- return h;
-}
-
-#endif
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-/*
- Murmurhash from http://sites.google.com/site/murmurhash/
-
- All code is released to the public domain. For business purposes, Murmurhash is
- under the MIT license.
-*/
-#pragma once
-#include <stdint.h>
-
-#if defined(__x86_64__)
-#define MURMUR_HASH MurmurHash64A
-uint64_t MurmurHash64A ( const void * key, int len, unsigned int seed );
-#define MurmurHash MurmurHash64A
-typedef uint64_t murmur_t;
-
-#elif defined(__i386__)
-#define MURMUR_HASH MurmurHash2
-unsigned int MurmurHash2 ( const void * key, int len, unsigned int seed );
-#define MurmurHash MurmurHash2
-typedef unsigned int murmur_t;
-
-#else
-#define MURMUR_HASH MurmurHashNeutral2
-unsigned int MurmurHashNeutral2 ( const void * key, int len, unsigned int seed );
-#define MurmurHash MurmurHashNeutral2
-typedef unsigned int murmur_t;
-
-#endif
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "port/port.h"
-
-namespace rocksdb {
-
-// Helper class that locks a mutex on construction and unlocks the mutex when
-// the destructor of the MutexLock object is invoked.
-//
-// Typical usage:
-//
-// void MyClass::MyMethod() {
-// MutexLock l(&mu_); // mu_ is an instance variable
-// ... some complex code, possibly with multiple return paths ...
-// }
-
-class MutexLock {
- public:
- explicit MutexLock(port::Mutex *mu) : mu_(mu) {
- this->mu_->Lock();
- }
- ~MutexLock() { this->mu_->Unlock(); }
-
- private:
- port::Mutex *const mu_;
- // No copying allowed
- MutexLock(const MutexLock&);
- void operator=(const MutexLock&);
-};
-
-//
-// Acquire a ReadLock on the specified RWMutex.
-// The Lock will be automatically released then the
-// object goes out of scope.
-//
-class ReadLock {
- public:
- explicit ReadLock(port::RWMutex *mu) : mu_(mu) {
- this->mu_->ReadLock();
- }
- ~ReadLock() { this->mu_->Unlock(); }
-
- private:
- port::RWMutex *const mu_;
- // No copying allowed
- ReadLock(const ReadLock&);
- void operator=(const ReadLock&);
-};
-
-
-//
-// Acquire a WriteLock on the specified RWMutex.
-// The Lock will be automatically released then the
-// object goes out of scope.
-//
-class WriteLock {
- public:
- explicit WriteLock(port::RWMutex *mu) : mu_(mu) {
- this->mu_->WriteLock();
- }
- ~WriteLock() { this->mu_->Unlock(); }
-
- private:
- port::RWMutex *const mu_;
- // No copying allowed
- WriteLock(const WriteLock&);
- void operator=(const WriteLock&);
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/options.h"
-
-#include <limits>
-
-#include "rocksdb/cache.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/env.h"
-#include "rocksdb/filter_policy.h"
-#include "rocksdb/flush_block_policy.h"
-#include "rocksdb/merge_operator.h"
-#include "table/block_based_table_factory.h"
-
-namespace rocksdb {
-
-Options::Options()
- : comparator(BytewiseComparator()),
- merge_operator(nullptr),
- compaction_filter(nullptr),
- create_if_missing(false),
- error_if_exists(false),
- paranoid_checks(false),
- env(Env::Default()),
- info_log(nullptr),
- write_buffer_size(4<<20),
- max_write_buffer_number(2),
- min_write_buffer_number_to_merge(1),
- max_open_files(1000),
- block_cache(nullptr),
- block_cache_compressed(nullptr),
- block_size(4096),
- block_restart_interval(16),
- compression(kSnappyCompression),
- filter_policy(nullptr),
- prefix_extractor(nullptr),
- whole_key_filtering(true),
- num_levels(7),
- level0_file_num_compaction_trigger(4),
- level0_slowdown_writes_trigger(8),
- level0_stop_writes_trigger(12),
- max_mem_compaction_level(2),
- target_file_size_base(2 * 1048576),
- target_file_size_multiplier(1),
- max_bytes_for_level_base(10 * 1048576),
- max_bytes_for_level_multiplier(10),
- max_bytes_for_level_multiplier_additional(num_levels, 1),
- expanded_compaction_factor(25),
- source_compaction_factor(1),
- max_grandparent_overlap_factor(10),
- disableDataSync(false),
- use_fsync(false),
- db_stats_log_interval(1800),
- db_log_dir(""),
- wal_dir(""),
- disable_seek_compaction(false),
- delete_obsolete_files_period_micros(6 * 60 * 60 * 1000000UL),
- max_background_compactions(1),
- max_background_flushes(0),
- max_log_file_size(0),
- log_file_time_to_roll(0),
- keep_log_file_num(1000),
- soft_rate_limit(0.0),
- hard_rate_limit(0.0),
- rate_limit_delay_max_milliseconds(1000),
- max_manifest_file_size(std::numeric_limits<uint64_t>::max()),
- no_block_cache(false),
- table_cache_numshardbits(4),
- table_cache_remove_scan_count_limit(16),
- arena_block_size(0),
- disable_auto_compactions(false),
- WAL_ttl_seconds(0),
- WAL_size_limit_MB(0),
- manifest_preallocation_size(4 * 1024 * 1024),
- purge_redundant_kvs_while_flush(true),
- allow_os_buffer(true),
- allow_mmap_reads(false),
- allow_mmap_writes(true),
- is_fd_close_on_exec(true),
- skip_log_error_on_recovery(false),
- stats_dump_period_sec(3600),
- block_size_deviation (10),
- advise_random_on_open(true),
- access_hint_on_compaction_start(NORMAL),
- use_adaptive_mutex(false),
- bytes_per_sync(0),
- compaction_style(kCompactionStyleLevel),
- filter_deletes(false),
- max_sequential_skip_in_iterations(8),
- memtable_factory(std::shared_ptr<SkipListFactory>(new SkipListFactory)),
- table_factory(
- std::shared_ptr<TableFactory>(new BlockBasedTableFactory())),
- compaction_filter_factory(
- std::shared_ptr<CompactionFilterFactory>(
- new DefaultCompactionFilterFactory())),
- inplace_update_support(false),
- inplace_update_num_locks(10000) {
- assert(memtable_factory.get() != nullptr);
-}
-
-static const char* const access_hints[] = {
- "NONE", "NORMAL", "SEQUENTIAL", "WILLNEED"
-};
-
-void
-Options::Dump(Logger* log) const
-{
- Log(log," Options.comparator: %s", comparator->Name());
- Log(log," Options.merge_operator: %s",
- merge_operator? merge_operator->Name() : "None");
- Log(log," Options.compaction_filter: %s",
- compaction_filter? compaction_filter->Name() : "None");
- Log(log," Options.compaction_filter_factory: %s",
- compaction_filter_factory->Name());
- Log(log," Options.memtable_factory: %s",
- memtable_factory->Name());
- Log(log," Options.table_factory: %s", table_factory->Name());
- Log(log," Options.error_if_exists: %d", error_if_exists);
- Log(log," Options.create_if_missing: %d", create_if_missing);
- Log(log," Options.paranoid_checks: %d", paranoid_checks);
- Log(log," Options.env: %p", env);
- Log(log," Options.info_log: %p", info_log.get());
- Log(log," Options.write_buffer_size: %zd", write_buffer_size);
- Log(log," Options.max_write_buffer_number: %d", max_write_buffer_number);
- Log(log," Options.max_open_files: %d", max_open_files);
- Log(log," Options.block_cache: %p", block_cache.get());
- Log(log," Options.block_cache_compressed: %p",
- block_cache_compressed.get());
- if (block_cache) {
- Log(log," Options.block_cache_size: %zd",
- block_cache->GetCapacity());
- }
- if (block_cache_compressed) {
- Log(log,"Options.block_cache_compressed_size: %zd",
- block_cache_compressed->GetCapacity());
- }
- Log(log," Options.block_size: %zd", block_size);
- Log(log," Options.block_restart_interval: %d", block_restart_interval);
- if (!compression_per_level.empty()) {
- for (unsigned int i = 0; i < compression_per_level.size(); i++) {
- Log(log," Options.compression[%d]: %d",
- i, compression_per_level[i]);
- }
- } else {
- Log(log," Options.compression: %d", compression);
- }
- Log(log," Options.filter_policy: %s",
- filter_policy == nullptr ? "nullptr" : filter_policy->Name());
- Log(log," Options.prefix_extractor: %s",
- prefix_extractor == nullptr ? "nullptr" : prefix_extractor->Name());
- Log(log," Options.whole_key_filtering: %d", whole_key_filtering);
- Log(log," Options.num_levels: %d", num_levels);
- Log(log," Options.disableDataSync: %d", disableDataSync);
- Log(log," Options.use_fsync: %d", use_fsync);
- Log(log," Options.max_log_file_size: %ld", max_log_file_size);
- Log(log,"Options.max_manifest_file_size: %lu",
- (unsigned long)max_manifest_file_size);
- Log(log," Options.log_file_time_to_roll: %ld", log_file_time_to_roll);
- Log(log," Options.keep_log_file_num: %ld", keep_log_file_num);
- Log(log," Options.db_stats_log_interval: %d",
- db_stats_log_interval);
- Log(log," Options.allow_os_buffer: %d", allow_os_buffer);
- Log(log," Options.allow_mmap_reads: %d", allow_mmap_reads);
- Log(log," Options.allow_mmap_writes: %d", allow_mmap_writes);
- Log(log," Options.min_write_buffer_number_to_merge: %d",
- min_write_buffer_number_to_merge);
- Log(log," Options.purge_redundant_kvs_while_flush: %d",
- purge_redundant_kvs_while_flush);
- Log(log," Options.compression_opts.window_bits: %d",
- compression_opts.window_bits);
- Log(log," Options.compression_opts.level: %d",
- compression_opts.level);
- Log(log," Options.compression_opts.strategy: %d",
- compression_opts.strategy);
- Log(log," Options.level0_file_num_compaction_trigger: %d",
- level0_file_num_compaction_trigger);
- Log(log," Options.level0_slowdown_writes_trigger: %d",
- level0_slowdown_writes_trigger);
- Log(log," Options.level0_stop_writes_trigger: %d",
- level0_stop_writes_trigger);
- Log(log," Options.max_mem_compaction_level: %d",
- max_mem_compaction_level);
- Log(log," Options.target_file_size_base: %d",
- target_file_size_base);
- Log(log," Options.target_file_size_multiplier: %d",
- target_file_size_multiplier);
- Log(log," Options.max_bytes_for_level_base: %lu",
- (unsigned long)max_bytes_for_level_base);
- Log(log," Options.max_bytes_for_level_multiplier: %d",
- max_bytes_for_level_multiplier);
- for (int i = 0; i < num_levels; i++) {
- Log(log,"Options.max_bytes_for_level_multiplier_addtl[%d]: %d",
- i, max_bytes_for_level_multiplier_additional[i]);
- }
- Log(log," Options.max_sequential_skip_in_iterations: %lu",
- (unsigned long)max_sequential_skip_in_iterations);
- Log(log," Options.expanded_compaction_factor: %d",
- expanded_compaction_factor);
- Log(log," Options.source_compaction_factor: %d",
- source_compaction_factor);
- Log(log," Options.max_grandparent_overlap_factor: %d",
- max_grandparent_overlap_factor);
- Log(log," Options.db_log_dir: %s",
- db_log_dir.c_str());
- Log(log," Options.wal_dir: %s",
- wal_dir.c_str());
- Log(log," Options.disable_seek_compaction: %d",
- disable_seek_compaction);
- Log(log," Options.no_block_cache: %d",
- no_block_cache);
- Log(log," Options.table_cache_numshardbits: %d",
- table_cache_numshardbits);
- Log(log," Options.table_cache_remove_scan_count_limit: %d",
- table_cache_remove_scan_count_limit);
- Log(log," Options.arena_block_size: %ld",
- arena_block_size);
- Log(log," Options.delete_obsolete_files_period_micros: %lu",
- (unsigned long)delete_obsolete_files_period_micros);
- Log(log," Options.max_background_compactions: %d",
- max_background_compactions);
- Log(log," Options.max_background_flushes: %d",
- max_background_flushes);
- Log(log," Options.soft_rate_limit: %.2f",
- soft_rate_limit);
- Log(log," Options.hard_rate_limit: %.2f",
- hard_rate_limit);
- Log(log," Options.rate_limit_delay_max_milliseconds: %u",
- rate_limit_delay_max_milliseconds);
- Log(log," Options.disable_auto_compactions: %d",
- disable_auto_compactions);
- Log(log," Options.WAL_ttl_seconds: %lu",
- (unsigned long)WAL_ttl_seconds);
- Log(log," Options.WAL_size_limit_MB: %lu",
- (unsigned long)WAL_size_limit_MB);
- Log(log," Options.manifest_preallocation_size: %ld",
- manifest_preallocation_size);
- Log(log," Options.purge_redundant_kvs_while_flush: %d",
- purge_redundant_kvs_while_flush);
- Log(log," Options.allow_os_buffer: %d",
- allow_os_buffer);
- Log(log," Options.allow_mmap_reads: %d",
- allow_mmap_reads);
- Log(log," Options.allow_mmap_writes: %d",
- allow_mmap_writes);
- Log(log," Options.is_fd_close_on_exec: %d",
- is_fd_close_on_exec);
- Log(log," Options.skip_log_error_on_recovery: %d",
- skip_log_error_on_recovery);
- Log(log," Options.stats_dump_period_sec: %u",
- stats_dump_period_sec);
- Log(log," Options.block_size_deviation: %d",
- block_size_deviation);
- Log(log," Options.advise_random_on_open: %d",
- advise_random_on_open);
- Log(log," Options.access_hint_on_compaction_start: %s",
- access_hints[access_hint_on_compaction_start]);
- Log(log," Options.use_adaptive_mutex: %d",
- use_adaptive_mutex);
- Log(log," Options.bytes_per_sync: %lu",
- (unsigned long)bytes_per_sync);
- Log(log," Options.filter_deletes: %d",
- filter_deletes);
- Log(log," Options.compaction_style: %d",
- compaction_style);
- Log(log," Options.compaction_options_universal.size_ratio: %u",
- compaction_options_universal.size_ratio);
- Log(log,"Options.compaction_options_universal.min_merge_width: %u",
- compaction_options_universal.min_merge_width);
- Log(log,"Options.compaction_options_universal.max_merge_width: %u",
- compaction_options_universal.max_merge_width);
- Log(log,"Options.compaction_options_universal."
- "max_size_amplification_percent: %u",
- compaction_options_universal.max_size_amplification_percent);
- std::string collector_names;
- for (auto collector : table_stats_collectors) {
- collector_names.append(collector->Name());
- collector_names.append("; ");
- }
- Log(log, " Options.table_stats_collectors: %s",
- collector_names.c_str());
- Log(log, " Options.inplace_update_support: %d",
- inplace_update_support);
- Log(log, " Options.inplace_update_num_locks: %zd",
- inplace_update_num_locks);
- Log(log, " Options.flush_block_policy_factory: %s",
- flush_block_policy_factory ? flush_block_policy_factory->Name() : "");
-} // Options::Dump
-
-//
-// The goal of this method is to create a configuration that
-// allows an application to write all files into L0 and
-// then do a single compaction to output all files into L1.
-Options*
-Options::PrepareForBulkLoad()
-{
- // never slowdown ingest.
- level0_file_num_compaction_trigger = (1<<30);
- level0_slowdown_writes_trigger = (1<<30);
- level0_stop_writes_trigger = (1<<30);
-
- // no auto compactions please. The application should issue a
- // manual compaction after all data is loaded into L0.
- disable_auto_compactions = true;
- disable_seek_compaction = true;
- disableDataSync = true;
-
- // A manual compaction run should pick all files in L0 in
- // a single compaction run.
- source_compaction_factor = (1<<30);
-
- // It is better to have only 2 levels, otherwise a manual
- // compaction would compact at every possible level, thereby
- // increasing the total time needed for compactions.
- num_levels = 2;
-
- // Prevent a memtable flush to automatically promote files
- // to L1. This is helpful so that all files that are
- // input to the manual compaction are all at L0.
- max_background_compactions = 2;
-
- // The compaction would create large files in L1.
- target_file_size_base = 256 * 1024 * 1024;
- return this;
-}
-
-Options* Options::SetUpDefaultFlushBlockPolicyFactory() {
- flush_block_policy_factory =
- std::make_shared<FlushBlockBySizePolicyFactory>(
- block_size, block_size_deviation);
- return this;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "util/perf_context_imp.h"
-
-namespace rocksdb {
-
-// by default, enable counts only
-PerfLevel perf_level = kEnableCount;
-
-void SetPerfLevel(PerfLevel level) { perf_level = level; }
-
-void PerfContext::Reset() {
- user_key_comparison_count = 0;
- block_cache_hit_count = 0;
- block_read_count = 0;
- block_read_byte = 0;
- block_read_time = 0;
- block_checksum_time = 0;
- block_decompress_time = 0;
- internal_key_skipped_count = 0;
- internal_delete_skipped_count = 0;
- wal_write_time = 0;
-}
-
-__thread PerfContext perf_context;
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-#include "rocksdb/perf_context.h"
-#include "util/stop_watch.h"
-
-namespace rocksdb {
-
-extern enum PerfLevel perf_level;
-
-inline void StartPerfTimer(StopWatchNano* timer) {
- if (perf_level >= PerfLevel::kEnableTime) {
- timer->Start();
- }
-}
-
-inline void BumpPerfCount(uint64_t* count, uint64_t delta = 1) {
- if (perf_level >= PerfLevel::kEnableCount) {
- *count += delta;
- }
-}
-
-inline void BumpPerfTime(uint64_t* time,
- StopWatchNano* timer,
- bool reset = true) {
- if (perf_level >= PerfLevel::kEnableTime) {
- *time += timer->ElapsedNanos(reset);
- }
-}
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// Logger implementation that can be shared by all environments
-// where enough posix functionality is available.
-
-#pragma once
-#include <algorithm>
-#include <stdio.h>
-#include <sys/time.h>
-#include <time.h>
-#include <fcntl.h>
-#include <unistd.h>
-#ifdef OS_LINUX
-#include <linux/falloc.h>
-#endif
-#include "rocksdb/env.h"
-#include <atomic>
-
-namespace rocksdb {
-
-const int kDebugLogChunkSize = 128 * 1024;
-
-class PosixLogger : public Logger {
- private:
- FILE* file_;
- uint64_t (*gettid_)(); // Return the thread id for the current thread
- std::atomic_size_t log_size_;
- int fd_;
- const static uint64_t flush_every_seconds_ = 5;
- std::atomic_uint_fast64_t last_flush_micros_;
- Env* env_;
- public:
- PosixLogger(FILE* f, uint64_t (*gettid)(), Env* env) :
- file_(f), gettid_(gettid), log_size_(0), fd_(fileno(f)),
- last_flush_micros_(0), env_(env) { }
- virtual ~PosixLogger() {
- fclose(file_);
- }
- virtual void Flush() {
- fflush(file_);
- last_flush_micros_ = env_->NowMicros();
- }
- virtual void Logv(const char* format, va_list ap) {
- const uint64_t thread_id = (*gettid_)();
-
- // We try twice: the first time with a fixed-size stack allocated buffer,
- // and the second time with a much larger dynamically allocated buffer.
- char buffer[500];
- for (int iter = 0; iter < 2; iter++) {
- char* base;
- int bufsize;
- if (iter == 0) {
- bufsize = sizeof(buffer);
- base = buffer;
- } else {
- bufsize = 30000;
- base = new char[bufsize];
- }
- char* p = base;
- char* limit = base + bufsize;
-
- struct timeval now_tv;
- gettimeofday(&now_tv, nullptr);
- const time_t seconds = now_tv.tv_sec;
- struct tm t;
- localtime_r(&seconds, &t);
- p += snprintf(p, limit - p,
- "%04d/%02d/%02d-%02d:%02d:%02d.%06d %llx ",
- t.tm_year + 1900,
- t.tm_mon + 1,
- t.tm_mday,
- t.tm_hour,
- t.tm_min,
- t.tm_sec,
- static_cast<int>(now_tv.tv_usec),
- static_cast<long long unsigned int>(thread_id));
-
- // Print the message
- if (p < limit) {
- va_list backup_ap;
- va_copy(backup_ap, ap);
- p += vsnprintf(p, limit - p, format, backup_ap);
- va_end(backup_ap);
- }
-
- // Truncate to available space if necessary
- if (p >= limit) {
- if (iter == 0) {
- continue; // Try again with larger buffer
- } else {
- p = limit - 1;
- }
- }
-
- // Add newline if necessary
- if (p == base || p[-1] != '\n') {
- *p++ = '\n';
- }
-
- assert(p <= limit);
- const size_t write_size = p - base;
-
-#ifdef OS_LINUX
- // If this write would cross a boundary of kDebugLogChunkSize
- // space, pre-allocate more space to avoid overly large
- // allocations from filesystem allocsize options.
- const size_t log_size = log_size_;
- const int last_allocation_chunk =
- ((kDebugLogChunkSize - 1 + log_size) / kDebugLogChunkSize);
- const int desired_allocation_chunk =
- ((kDebugLogChunkSize - 1 + log_size + write_size) /
- kDebugLogChunkSize);
- if (last_allocation_chunk != desired_allocation_chunk) {
- fallocate(fd_, FALLOC_FL_KEEP_SIZE, 0,
- desired_allocation_chunk * kDebugLogChunkSize);
- }
-#endif
-
- size_t sz = fwrite(base, 1, write_size, file_);
- assert(sz == write_size);
- if (sz > 0) {
- log_size_ += write_size;
- }
- uint64_t now_micros = static_cast<uint64_t>(now_tv.tv_sec) * 1000000 +
- now_tv.tv_usec;
- if (now_micros - last_flush_micros_ >= flush_every_seconds_ * 1000000) {
- fflush(file_);
- last_flush_micros_ = now_micros;
- }
- if (base != buffer) {
- delete[] base;
- }
- break;
- }
- }
- size_t GetLogFileSize() const {
- return log_size_;
- }
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include <random>
-#include <stdint.h>
-
-namespace rocksdb {
-
-// A very simple random number generator. Not especially good at
-// generating truly random bits, but good enough for our needs in this
-// package.
-class Random {
- private:
- uint32_t seed_;
- public:
- explicit Random(uint32_t s) : seed_(s & 0x7fffffffu) { }
- uint32_t Next() {
- static const uint32_t M = 2147483647L; // 2^31-1
- static const uint64_t A = 16807; // bits 14, 8, 7, 5, 2, 1, 0
- // We are computing
- // seed_ = (seed_ * A) % M, where M = 2^31-1
- //
- // seed_ must not be zero or M, or else all subsequent computed values
- // will be zero or M respectively. For all other values, seed_ will end
- // up cycling through every number in [1,M-1]
- uint64_t product = seed_ * A;
-
- // Compute (product % M) using the fact that ((x << 31) % M) == x.
- seed_ = static_cast<uint32_t>((product >> 31) + (product & M));
- // The first reduction may overflow by 1 bit, so we may need to
- // repeat. mod == M is not possible; using > allows the faster
- // sign-bit-based test.
- if (seed_ > M) {
- seed_ -= M;
- }
- return seed_;
- }
- // Returns a uniformly distributed value in the range [0..n-1]
- // REQUIRES: n > 0
- uint32_t Uniform(int n) { return Next() % n; }
-
- // Randomly returns true ~"1/n" of the time, and false otherwise.
- // REQUIRES: n > 0
- bool OneIn(int n) { return (Next() % n) == 0; }
-
- // Skewed: pick "base" uniformly from range [0,max_log] and then
- // return "base" random bits. The effect is to pick a number in the
- // range [0,2^max_log-1] with exponential bias towards smaller numbers.
- uint32_t Skewed(int max_log) {
- return Uniform(1 << Uniform(max_log + 1));
- }
-};
-
-// A simple 64bit random number generator based on std::mt19937_64
-class Random64 {
- private:
- std::mt19937_64 generator_;
-
- public:
- explicit Random64(uint64_t s) : generator_(s) { }
-
- // Generates the next random number
- uint64_t Next() { return generator_(); }
-
- // Returns a uniformly distributed value in the range [0..n-1]
- // REQUIRES: n > 0
- uint64_t Uniform(uint64_t n) {
- return std::uniform_int_distribution<uint64_t>(0, n - 1)(generator_);
- }
-
- // Randomly returns true ~"1/n" of the time, and false otherwise.
- // REQUIRES: n > 0
- bool OneIn(uint64_t n) { return Uniform(n) == 0; }
-
- // Skewed: pick "base" uniformly from range [0,max_log] and then
- // return "base" random bits. The effect is to pick a number in the
- // range [0,2^max_log-1] with exponential bias towards smaller numbers.
- uint64_t Skewed(int max_log) {
- return Uniform(1 << Uniform(max_log + 1));
- }
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "util/stack_trace.h"
-#include <assert.h>
-
-void f0() {
- char *p = nullptr;
- *p = 10; /* SIGSEGV here!! */
-}
-
-void f1() {
- f0();
-}
-
-void f2() {
- f1();
-}
-
-void f3() {
- f2();
-}
-
-int main() {
- rocksdb::InstallStackTraceHandler();
-
- f3();
-
- return 0;
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "rocksdb/memtablerep.h"
-#include "db/memtable.h"
-#include "db/skiplist.h"
-
-namespace rocksdb {
-namespace {
-class SkipListRep : public MemTableRep {
- SkipList<const char*, MemTableRep::KeyComparator&> skip_list_;
-public:
- explicit SkipListRep(MemTableRep::KeyComparator& compare, Arena* arena)
- : skip_list_(compare, arena) {
-}
-
- // Insert key into the list.
- // REQUIRES: nothing that compares equal to key is currently in the list.
- virtual void Insert(const char* key) override {
- skip_list_.Insert(key);
- }
-
- // Returns true iff an entry that compares equal to key is in the list.
- virtual bool Contains(const char* key) const override {
- return skip_list_.Contains(key);
- }
-
- virtual size_t ApproximateMemoryUsage() override {
- // All memory is allocated through arena; nothing to report here
- return 0;
- }
-
- virtual ~SkipListRep() override { }
-
- // Iteration over the contents of a skip list
- class Iterator : public MemTableRep::Iterator {
- SkipList<const char*, MemTableRep::KeyComparator&>::Iterator iter_;
- public:
- // Initialize an iterator over the specified list.
- // The returned iterator is not valid.
- explicit Iterator(
- const SkipList<const char*, MemTableRep::KeyComparator&>* list
- ) : iter_(list) { }
-
- virtual ~Iterator() override { }
-
- // Returns true iff the iterator is positioned at a valid node.
- virtual bool Valid() const override {
- return iter_.Valid();
- }
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- virtual const char* key() const override {
- return iter_.key();
- }
-
- // Advances to the next position.
- // REQUIRES: Valid()
- virtual void Next() override {
- iter_.Next();
- }
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- virtual void Prev() override {
- iter_.Prev();
- }
-
- // Advance to the first entry with a key >= target
- virtual void Seek(const char* target) override {
- iter_.Seek(target);
- }
-
- // Position at the first entry in list.
- // Final state of iterator is Valid() iff list is not empty.
- virtual void SeekToFirst() override {
- iter_.SeekToFirst();
- }
-
- // Position at the last entry in list.
- // Final state of iterator is Valid() iff list is not empty.
- virtual void SeekToLast() override {
- iter_.SeekToLast();
- }
- };
-
- // Unhide default implementations of GetIterator
- using MemTableRep::GetIterator;
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetIterator() override {
- return std::make_shared<SkipListRep::Iterator>(&skip_list_);
- }
-};
-}
-
-std::shared_ptr<MemTableRep> SkipListFactory::CreateMemTableRep (
- MemTableRep::KeyComparator& compare, Arena* arena) {
- return std::shared_ptr<MemTableRep>(new SkipListRep(compare, arena));
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/slice_transform.h"
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-namespace {
-
-class FixedPrefixTransform : public SliceTransform {
- private:
- size_t prefix_len_;
-
- public:
- explicit FixedPrefixTransform(size_t prefix_len) : prefix_len_(prefix_len) { }
-
- virtual const char* Name() const {
- return "rocksdb.FixedPrefix";
- }
-
- virtual Slice Transform(const Slice& src) const {
- assert(InDomain(src));
- return Slice(src.data(), prefix_len_);
- }
-
- virtual bool InDomain(const Slice& src) const {
- return (src.size() >= prefix_len_);
- }
-
- virtual bool InRange(const Slice& dst) const {
- return (dst.size() == prefix_len_);
- }
-};
-
-class NoopTransform : public SliceTransform {
- public:
- explicit NoopTransform() { }
-
- virtual const char* Name() const {
- return "rocksdb.Noop";
- }
-
- virtual Slice Transform(const Slice& src) const {
- return src;
- }
-
- virtual bool InDomain(const Slice& src) const {
- return true;
- }
-
- virtual bool InRange(const Slice& dst) const {
- return true;
- }
-};
-
-}
-
-const SliceTransform* NewFixedPrefixTransform(size_t prefix_len) {
- return new FixedPrefixTransform(prefix_len);
-}
-
-const SliceTransform* NewNoopTransform() {
- return new NoopTransform;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-namespace rocksdb {
-
-// Install a signal handler to print callstack on the following signals:
-// SIGILL SIGSEGV SIGBUS SIGABRT
-// Currently supports linux only. No-op otherwise.
-void InstallStackTraceHandler();
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "rocksdb/statistics.h"
-#include <cstdio>
-
-namespace rocksdb {
-
-namespace {
-// a buffer size used for temp string buffers
-const int kBufferSize = 200;
-
-std::string HistogramToString (
- Statistics* dbstats,
- const Histograms& histogram_type,
- const std::string& name) {
-
- char buffer[kBufferSize];
- HistogramData histogramData;
- dbstats->histogramData(histogram_type, &histogramData);
- snprintf(
- buffer,
- kBufferSize,
- "%s statistics Percentiles :=> 50 : %f 95 : %f 99 : %f\n",
- name.c_str(),
- histogramData.median,
- histogramData.percentile95,
- histogramData.percentile99
- );
- return std::string(buffer);
-};
-
-std::string TickerToString (
- Statistics* dbstats,
- const Tickers& ticker,
- const std::string& name) {
-
- char buffer[kBufferSize];
- snprintf(buffer, kBufferSize, "%s COUNT : %ld\n",
- name.c_str(), dbstats->getTickerCount(ticker));
- return std::string(buffer);
-};
-} // namespace
-
-std::string Statistics::ToString() {
- std::string res;
- res.reserve(20000);
- for (const auto& t : TickersNameMap) {
- res.append(TickerToString(this, t.first, t.second));
- }
- for (const auto& h : HistogramsNameMap) {
- res.append(HistogramToString(this, h.first, h.second));
- }
- res.shrink_to_fit();
- return res;
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-
-namespace rocksdb {
-
-class StatsLogger {
-
- public:
-
- virtual void Log_Deploy_Stats(const std::string& db_version,
- const std::string& machine_info,
- const std::string& data_dir,
- const uint64_t data_size,
- const uint32_t file_number,
- const std::string& data_size_per_level,
- const std::string& file_number_per_level,
- const int64_t& ts_unix) = 0;
- virtual ~StatsLogger() {}
-
-};
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <stdio.h>
-#include "port/port.h"
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-const char* Status::CopyState(const char* state) {
- uint32_t size;
- memcpy(&size, state, sizeof(size));
- char* result = new char[size + 5];
- memcpy(result, state, size + 5);
- return result;
-}
-
-Status::Status(Code code, const Slice& msg, const Slice& msg2) {
- assert(code != kOk);
- const uint32_t len1 = msg.size();
- const uint32_t len2 = msg2.size();
- const uint32_t size = len1 + (len2 ? (2 + len2) : 0);
- char* result = new char[size + 5];
- memcpy(result, &size, sizeof(size));
- result[4] = static_cast<char>(code);
- memcpy(result + 5, msg.data(), len1);
- if (len2) {
- result[5 + len1] = ':';
- result[6 + len1] = ' ';
- memcpy(result + 7 + len1, msg2.data(), len2);
- }
- state_ = result;
-}
-
-std::string Status::ToString() const {
- if (state_ == nullptr) {
- return "OK";
- } else {
- char tmp[30];
- const char* type;
- switch (code()) {
- case kOk:
- type = "OK";
- break;
- case kNotFound:
- type = "NotFound: ";
- break;
- case kCorruption:
- type = "Corruption: ";
- break;
- case kNotSupported:
- type = "Not implemented: ";
- break;
- case kInvalidArgument:
- type = "Invalid argument: ";
- break;
- case kIOError:
- type = "IO error: ";
- break;
- case kMergeInProgress:
- type = "Merge In Progress: ";
- break;
- default:
- snprintf(tmp, sizeof(tmp), "Unknown code(%d): ",
- static_cast<int>(code()));
- type = tmp;
- break;
- }
- std::string result(type);
- uint32_t length;
- memcpy(&length, state_, sizeof(length));
- result.append(state_ + 5, length);
- return result;
- }
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-
-#include "util/murmurhash.h"
-#include "util/coding.h"
-
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-namespace stl_wrappers {
- class Base {
- protected:
- const MemTableRep::KeyComparator& compare_;
- explicit Base(const MemTableRep::KeyComparator& compare)
- : compare_(compare) { }
- };
-
- struct Compare : private Base {
- explicit Compare(const MemTableRep::KeyComparator& compare)
- : Base(compare) { }
- inline bool operator()(const char* a, const char* b) const {
- return compare_(a, b) < 0;
- }
- };
-
- struct Hash {
- inline size_t operator()(const char* buf) const {
- Slice internal_key = GetLengthPrefixedSlice(buf);
- Slice value =
- GetLengthPrefixedSlice(internal_key.data() + internal_key.size());
- unsigned int hval = MurmurHash(internal_key.data(), internal_key.size(),
- 0);
- hval = MurmurHash(value.data(), value.size(), hval);
- return hval;
- }
- };
-
- struct KeyEqual : private Base {
- explicit KeyEqual(const MemTableRep::KeyComparator& compare)
- : Base(compare) { }
- inline bool operator()(const char* a, const char* b) const {
- return this->compare_(a, b) == 0;
- }
- };
-}
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-#include "rocksdb/env.h"
-#include "rocksdb/statistics.h"
-
-namespace rocksdb {
-// Auto-scoped.
-// Records the statistic into the corresponding histogram.
-class StopWatch {
- public:
- StopWatch(
- Env * const env,
- std::shared_ptr<Statistics> statistics = nullptr,
- const Histograms histogram_name = DB_GET) :
- env_(env),
- start_time_(env->NowMicros()),
- statistics_(statistics),
- histogram_name_(histogram_name) {}
-
-
-
- uint64_t ElapsedMicros() {
- return env_->NowMicros() - start_time_;
- }
-
- ~StopWatch() {
- if (statistics_) {
- statistics_->measureTime(histogram_name_, ElapsedMicros());
- }
- }
-
- private:
- Env* const env_;
- const uint64_t start_time_;
- std::shared_ptr<Statistics> statistics_;
- const Histograms histogram_name_;
-
-};
-
-// a nano second precision stopwatch
-class StopWatchNano {
- public:
- StopWatchNano(Env* const env, bool auto_start = false)
- : env_(env), start_(0) {
- if (auto_start) {
- Start();
- }
- }
-
- void Start() { start_ = env_->NowNanos(); }
-
- uint64_t ElapsedNanos(bool reset = false) {
- auto now = env_->NowNanos();
- auto elapsed = now - start_;
- if (reset) {
- start_ = now;
- }
- return elapsed;
- }
-
- private:
- Env* const env_;
- uint64_t start_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <sstream>
-#include <string>
-#include <vector>
-
-namespace rocksdb {
-
-using namespace std;
-using std::string;
-using std::vector;
-using std::stringstream;
-
-vector<string> stringSplit(string arg, char delim) {
- vector<string> splits;
- stringstream ss(arg);
- string item;
- while(getline(ss, item, delim)) {
- splits.push_back(item);
- }
- return splits;
-}
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#pragma once
-namespace rocksdb {
-
-extern std::vector<std::string> stringSplit(std::string arg, char delim);
-
-}
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/testharness.h"
-
-#include <string>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-
-namespace rocksdb {
-namespace test {
-
-namespace {
-struct Test {
- const char* base;
- const char* name;
- void (*func)();
-};
-std::vector<Test>* tests;
-}
-
-bool RegisterTest(const char* base, const char* name, void (*func)()) {
- if (tests == nullptr) {
- tests = new std::vector<Test>;
- }
- Test t;
- t.base = base;
- t.name = name;
- t.func = func;
- tests->push_back(t);
- return true;
-}
-
-int RunAllTests() {
- const char* matcher = getenv("ROCKSDB_TESTS");
-
- int num = 0;
- if (tests != nullptr) {
- for (unsigned int i = 0; i < tests->size(); i++) {
- const Test& t = (*tests)[i];
- if (matcher != nullptr) {
- std::string name = t.base;
- name.push_back('.');
- name.append(t.name);
- if (strstr(name.c_str(), matcher) == nullptr) {
- continue;
- }
- }
- fprintf(stderr, "==== Test %s.%s\n", t.base, t.name);
- (*t.func)();
- ++num;
- }
- }
- fprintf(stderr, "==== PASSED %d tests\n", num);
- return 0;
-}
-
-std::string TmpDir() {
- std::string dir;
- Status s = Env::Default()->GetTestDirectory(&dir);
- ASSERT_TRUE(s.ok()) << s.ToString();
- return dir;
-}
-
-int RandomSeed() {
- const char* env = getenv("TEST_RANDOM_SEED");
- int result = (env != nullptr ? atoi(env) : 301);
- if (result <= 0) {
- result = 301;
- }
- return result;
-}
-
-} // namespace test
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sstream>
-#include "rocksdb/env.h"
-#include "rocksdb/slice.h"
-#include "util/random.h"
-
-namespace rocksdb {
-namespace test {
-
-// Run some of the tests registered by the TEST() macro. If the
-// environment variable "ROCKSDB_TESTS" is not set, runs all tests.
-// Otherwise, runs only the tests whose name contains the value of
-// "ROCKSDB_TESTS" as a substring. E.g., suppose the tests are:
-// TEST(Foo, Hello) { ... }
-// TEST(Foo, World) { ... }
-// ROCKSDB_TESTS=Hello will run the first test
-// ROCKSDB_TESTS=o will run both tests
-// ROCKSDB_TESTS=Junk will run no tests
-//
-// Returns 0 if all tests pass.
-// Dies or returns a non-zero value if some test fails.
-extern int RunAllTests();
-
-// Return the directory to use for temporary storage.
-extern std::string TmpDir();
-
-// Return a randomization seed for this run. Typically returns the
-// same number on repeated invocations of this binary, but automated
-// runs may be able to vary the seed.
-extern int RandomSeed();
-
-// An instance of Tester is allocated to hold temporary state during
-// the execution of an assertion.
-class Tester {
- private:
- bool ok_;
- const char* fname_;
- int line_;
- std::stringstream ss_;
-
- public:
- Tester(const char* f, int l)
- : ok_(true), fname_(f), line_(l) {
- }
-
- ~Tester() {
- if (!ok_) {
- fprintf(stderr, "%s:%d:%s\n", fname_, line_, ss_.str().c_str());
- exit(1);
- }
- }
-
- Tester& Is(bool b, const char* msg) {
- if (!b) {
- ss_ << " Assertion failure " << msg;
- ok_ = false;
- }
- return *this;
- }
-
- Tester& IsOk(const Status& s) {
- if (!s.ok()) {
- ss_ << " " << s.ToString();
- ok_ = false;
- }
- return *this;
- }
-
-#define BINARY_OP(name,op) \
- template <class X, class Y> \
- Tester& name(const X& x, const Y& y) { \
- if (! (x op y)) { \
- ss_ << " failed: " << x << (" " #op " ") << y; \
- ok_ = false; \
- } \
- return *this; \
- }
-
- BINARY_OP(IsEq, ==)
- BINARY_OP(IsNe, !=)
- BINARY_OP(IsGe, >=)
- BINARY_OP(IsGt, >)
- BINARY_OP(IsLe, <=)
- BINARY_OP(IsLt, <)
-#undef BINARY_OP
-
- // Attach the specified value to the error message if an error has occurred
- template <class V>
- Tester& operator<<(const V& value) {
- if (!ok_) {
- ss_ << " " << value;
- }
- return *this;
- }
-};
-
-#define ASSERT_TRUE(c) ::rocksdb::test::Tester(__FILE__, __LINE__).Is((c), #c)
-#define ASSERT_OK(s) ::rocksdb::test::Tester(__FILE__, __LINE__).IsOk((s))
-#define ASSERT_EQ(a,b) ::rocksdb::test::Tester(__FILE__, __LINE__).IsEq((a),(b))
-#define ASSERT_NE(a,b) ::rocksdb::test::Tester(__FILE__, __LINE__).IsNe((a),(b))
-#define ASSERT_GE(a,b) ::rocksdb::test::Tester(__FILE__, __LINE__).IsGe((a),(b))
-#define ASSERT_GT(a,b) ::rocksdb::test::Tester(__FILE__, __LINE__).IsGt((a),(b))
-#define ASSERT_LE(a,b) ::rocksdb::test::Tester(__FILE__, __LINE__).IsLe((a),(b))
-#define ASSERT_LT(a,b) ::rocksdb::test::Tester(__FILE__, __LINE__).IsLt((a),(b))
-
-#define TCONCAT(a,b) TCONCAT1(a,b)
-#define TCONCAT1(a,b) a##b
-
-#define TEST(base,name) \
-class TCONCAT(_Test_,name) : public base { \
- public: \
- void _Run(); \
- static void _RunIt() { \
- TCONCAT(_Test_,name) t; \
- t._Run(); \
- } \
-}; \
-bool TCONCAT(_Test_ignored_,name) = \
- ::rocksdb::test::RegisterTest(#base, #name, &TCONCAT(_Test_,name)::_RunIt); \
-void TCONCAT(_Test_,name)::_Run()
-
-// Register the specified test. Typically not used directly, but
-// invoked via the macro expansion of TEST.
-extern bool RegisterTest(const char* base, const char* name, void (*func)());
-
-
-} // namespace test
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "util/testutil.h"
-
-#include "util/random.h"
-
-namespace rocksdb {
-namespace test {
-
-Slice RandomString(Random* rnd, int len, std::string* dst) {
- dst->resize(len);
- for (int i = 0; i < len; i++) {
- (*dst)[i] = static_cast<char>(' ' + rnd->Uniform(95)); // ' ' .. '~'
- }
- return Slice(*dst);
-}
-
-std::string RandomKey(Random* rnd, int len) {
- // Make sure to generate a wide variety of characters so we
- // test the boundary conditions for short-key optimizations.
- static const char kTestChars[] = {
- '\0', '\1', 'a', 'b', 'c', 'd', 'e', '\xfd', '\xfe', '\xff'
- };
- std::string result;
- for (int i = 0; i < len; i++) {
- result += kTestChars[rnd->Uniform(sizeof(kTestChars))];
- }
- return result;
-}
-
-
-extern Slice CompressibleString(Random* rnd, double compressed_fraction,
- int len, std::string* dst) {
- int raw = static_cast<int>(len * compressed_fraction);
- if (raw < 1) raw = 1;
- std::string raw_data;
- RandomString(rnd, raw, &raw_data);
-
- // Duplicate the random data until we have filled "len" bytes
- dst->clear();
- while (dst->size() < (unsigned int)len) {
- dst->append(raw_data);
- }
- dst->resize(len);
- return Slice(*dst);
-}
-
-} // namespace test
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/env.h"
-#include "rocksdb/slice.h"
-#include "util/random.h"
-
-namespace rocksdb {
-namespace test {
-
-// Store in *dst a random string of length "len" and return a Slice that
-// references the generated data.
-extern Slice RandomString(Random* rnd, int len, std::string* dst);
-
-// Return a random key with the specified length that may contain interesting
-// characters (e.g. \x00, \xff, etc.).
-extern std::string RandomKey(Random* rnd, int len);
-
-// Store in *dst a string of length "len" that will compress to
-// "N*compressed_fraction" bytes and return a Slice that references
-// the generated data.
-extern Slice CompressibleString(Random* rnd, double compressed_fraction,
- int len, std::string* dst);
-
-// A wrapper that allows injection of errors.
-class ErrorEnv : public EnvWrapper {
- public:
- bool writable_file_error_;
- int num_writable_file_errors_;
-
- ErrorEnv() : EnvWrapper(Env::Default()),
- writable_file_error_(false),
- num_writable_file_errors_(0) { }
-
- virtual Status NewWritableFile(const std::string& fname,
- unique_ptr<WritableFile>* result,
- const EnvOptions& soptions) {
- result->reset();
- if (writable_file_error_) {
- ++num_writable_file_errors_;
- return Status::IOError(fname, "fake error");
- }
- return target()->NewWritableFile(fname, result, soptions);
- }
-};
-
-} // namespace test
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include <unordered_map>
-#include <set>
-#include <vector>
-#include <algorithm>
-#include <iostream>
-
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/arena.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/slice_transform.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-#include "util/murmurhash.h"
-#include "util/stl_wrappers.h"
-
-namespace std {
-template <>
-struct hash<rocksdb::Slice> {
- size_t operator()(const rocksdb::Slice& slice) const {
- return MurmurHash(slice.data(), slice.size(), 0);
- }
-};
-}
-
-namespace rocksdb {
-namespace {
-
-using namespace stl_wrappers;
-
-class TransformRep : public MemTableRep {
- public:
- TransformRep(const KeyComparator& compare, Arena* arena,
- const SliceTransform* transform, size_t bucket_size,
- size_t num_locks);
-
- virtual void Insert(const char* key) override;
-
- virtual bool Contains(const char* key) const override;
-
- virtual size_t ApproximateMemoryUsage() override;
-
- virtual ~TransformRep() { }
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetIterator() override;
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetIterator(
- const Slice& slice) override;
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetDynamicPrefixIterator()
- override {
- return std::make_shared<DynamicPrefixIterator>(*this);
- }
-
- std::shared_ptr<MemTableRep::Iterator> GetTransformIterator(
- const Slice& transformed);
-
- private:
- friend class DynamicPrefixIterator;
- typedef std::set<const char*, Compare> Bucket;
- typedef std::unordered_map<Slice, std::shared_ptr<Bucket>> BucketMap;
-
- // Maps slices (which are transformed user keys) to buckets of keys sharing
- // the same transform.
- BucketMap buckets_;
-
- // rwlock_ protects access to the buckets_ data structure itself. Each bucket
- // has its own read-write lock as well.
- mutable port::RWMutex rwlock_;
-
- // Keep track of approximately how much memory is being used.
- size_t memory_usage_ = 0;
-
- // The user-supplied transform whose domain is the user keys.
- const SliceTransform* transform_;
-
- // Get a bucket from buckets_. If the bucket hasn't been initialized yet,
- // initialize it before returning. Must be externally synchronized.
- std::shared_ptr<Bucket>& GetBucket(const Slice& transformed);
-
- port::RWMutex* GetLock(const Slice& transformed) const;
-
- mutable std::vector<port::RWMutex> locks_;
-
- const KeyComparator& compare_;
-
- class Iterator : public MemTableRep::Iterator {
- public:
- explicit Iterator(std::shared_ptr<Bucket> items);
-
- virtual ~Iterator() { };
-
- // Returns true iff the iterator is positioned at a valid node.
- virtual bool Valid() const;
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- virtual const char* key() const;
-
- // Advances to the next position.
- // REQUIRES: Valid()
- virtual void Next();
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- virtual void Prev();
-
- // Advance to the first entry with a key >= target
- virtual void Seek(const char* target);
-
- // Position at the first entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToFirst();
-
- // Position at the last entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToLast();
- private:
- std::shared_ptr<Bucket> items_;
- Bucket::const_iterator cit_;
- };
-
- class EmptyIterator : public MemTableRep::Iterator {
- // This is used when there wasn't a bucket. It is cheaper than
- // instantiating an empty bucket over which to iterate.
- public:
- virtual bool Valid() const {
- return false;
- }
- virtual const char* key() const {
- assert(false);
- return nullptr;
- }
- virtual void Next() { }
- virtual void Prev() { }
- virtual void Seek(const char* target) { }
- virtual void SeekToFirst() { }
- virtual void SeekToLast() { }
- static std::shared_ptr<EmptyIterator> GetInstance();
- private:
- static std::shared_ptr<EmptyIterator> instance;
- EmptyIterator() { }
- };
-
- class TransformIterator : public Iterator {
- public:
- explicit TransformIterator(std::shared_ptr<Bucket> items,
- port::RWMutex* rwlock);
- virtual ~TransformIterator() { }
- private:
- const ReadLock l_;
- };
-
-
- class DynamicPrefixIterator : public MemTableRep::Iterator {
- private:
- // the underlying memtable rep
- const TransformRep& memtable_rep_;
- // the result of a prefix seek
- std::unique_ptr<MemTableRep::Iterator> bucket_iterator_;
-
- public:
- explicit DynamicPrefixIterator(const TransformRep& memtable_rep)
- : memtable_rep_(memtable_rep) {}
-
- virtual ~DynamicPrefixIterator() { };
-
- // Returns true iff the iterator is positioned at a valid node.
- virtual bool Valid() const {
- return bucket_iterator_ && bucket_iterator_->Valid();
- }
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- virtual const char* key() const {
- assert(Valid());
- return bucket_iterator_->key();
- }
-
- // Advances to the next position.
- // REQUIRES: Valid()
- virtual void Next() {
- assert(Valid());
- bucket_iterator_->Next();
- }
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- virtual void Prev() {
- assert(Valid());
- bucket_iterator_->Prev();
- }
-
- // Advance to the first entry with a key >= target within the
- // same bucket as target
- virtual void Seek(const char* target) {
- Slice prefix = memtable_rep_.transform_->Transform(
- memtable_rep_.UserKey(target));
-
- ReadLock l(&memtable_rep_.rwlock_);
- auto bucket = memtable_rep_.buckets_.find(prefix);
- if (bucket == memtable_rep_.buckets_.end()) {
- bucket_iterator_.reset(nullptr);
- } else {
- bucket_iterator_.reset(
- new TransformIterator(bucket->second, memtable_rep_.GetLock(prefix)));
- bucket_iterator_->Seek(target);
- }
- }
-
- // Position at the first entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToFirst() {
- // Prefix iterator does not support total order.
- // We simply set the iterator to invalid state
- bucket_iterator_.reset(nullptr);
- }
-
- // Position at the last entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToLast() {
- // Prefix iterator does not support total order.
- // We simply set the iterator to invalid state
- bucket_iterator_.reset(nullptr);
- }
- };
-};
-
-class PrefixHashRep : public TransformRep {
- public:
- PrefixHashRep(const KeyComparator& compare, Arena* arena,
- const SliceTransform* transform, size_t bucket_size,
- size_t num_locks)
- : TransformRep(compare, arena, transform,
- bucket_size, num_locks) { }
-
- virtual std::shared_ptr<MemTableRep::Iterator> GetPrefixIterator(
- const Slice& prefix) override;
-};
-
-std::shared_ptr<TransformRep::Bucket>& TransformRep::GetBucket(
- const Slice& transformed) {
- WriteLock l(&rwlock_);
- auto& bucket = buckets_[transformed];
- if (!bucket) {
- bucket.reset(
- new decltype(buckets_)::mapped_type::element_type(Compare(compare_)));
- // To memory_usage_ we add the size of the std::set and the size of the
- // std::pair (decltype(buckets_)::value_type) which includes the
- // Slice and the std::shared_ptr
- memory_usage_ += sizeof(*bucket) +
- sizeof(decltype(buckets_)::value_type);
- }
- return bucket;
-}
-
-port::RWMutex* TransformRep::GetLock(const Slice& transformed) const {
- return &locks_[std::hash<Slice>()(transformed) % locks_.size()];
-}
-
-TransformRep::TransformRep(const KeyComparator& compare, Arena* arena,
- const SliceTransform* transform, size_t bucket_size,
- size_t num_locks)
- : buckets_(bucket_size),
- transform_(transform),
- locks_(num_locks),
- compare_(compare) { }
-
-void TransformRep::Insert(const char* key) {
- assert(!Contains(key));
- auto transformed = transform_->Transform(UserKey(key));
- auto& bucket = GetBucket(transformed);
- WriteLock bl(GetLock(transformed));
- bucket->insert(key);
- memory_usage_ += sizeof(key);
-}
-
-bool TransformRep::Contains(const char* key) const {
- ReadLock l(&rwlock_);
- auto transformed = transform_->Transform(UserKey(key));
- auto bucket = buckets_.find(transformed);
- if (bucket == buckets_.end()) {
- return false;
- }
- ReadLock bl(GetLock(transformed));
- return bucket->second->count(key) != 0;
-}
-
-size_t TransformRep::ApproximateMemoryUsage() {
- return memory_usage_;
-}
-
-std::shared_ptr<TransformRep::EmptyIterator>
- TransformRep::EmptyIterator::GetInstance() {
- if (!instance) {
- instance.reset(new TransformRep::EmptyIterator);
- }
- return instance;
-}
-
-TransformRep::Iterator::Iterator(std::shared_ptr<Bucket> items)
- : items_(items),
- cit_(items_->begin()) { }
-
-// Returns true iff the iterator is positioned at a valid node.
-bool TransformRep::Iterator::Valid() const {
- return cit_ != items_->end();
-}
-
-// Returns the key at the current position.
-// REQUIRES: Valid()
-const char* TransformRep::Iterator::key() const {
- assert(Valid());
- return *cit_;
-}
-
-// Advances to the next position.
-// REQUIRES: Valid()
-void TransformRep::Iterator::Next() {
- assert(Valid());
- if (cit_ == items_->end()) {
- return;
- }
- ++cit_;
-}
-
-// Advances to the previous position.
-// REQUIRES: Valid()
-void TransformRep::Iterator::Prev() {
- assert(Valid());
- if (cit_ == items_->begin()) {
- // If you try to go back from the first element, the iterator should be
- // invalidated. So we set it to past-the-end. This means that you can
- // treat the container circularly.
- cit_ = items_->end();
- } else {
- --cit_;
- }
-}
-
-// Advance to the first entry with a key >= target
-void TransformRep::Iterator::Seek(const char* target) {
- cit_ = items_->lower_bound(target);
-}
-
-// Position at the first entry in collection.
-// Final state of iterator is Valid() iff collection is not empty.
-void TransformRep::Iterator::SeekToFirst() {
- cit_ = items_->begin();
-}
-
-void TransformRep::Iterator::SeekToLast() {
- cit_ = items_->end();
- if (items_->size() != 0) {
- --cit_;
- }
-}
-
-TransformRep::TransformIterator::TransformIterator(
- std::shared_ptr<Bucket> items, port::RWMutex* rwlock)
- : Iterator(items), l_(rwlock) { }
-
-std::shared_ptr<MemTableRep::Iterator> TransformRep::GetIterator() {
- auto items = std::make_shared<Bucket>(Compare(compare_));
- // Hold read locks on all locks
- ReadLock l(&rwlock_);
- std::for_each(locks_.begin(), locks_.end(), [] (port::RWMutex& lock) {
- lock.ReadLock();
- });
- for (auto& bucket : buckets_) {
- items->insert(bucket.second->begin(), bucket.second->end());
- }
- std::for_each(locks_.begin(), locks_.end(), [] (port::RWMutex& lock) {
- lock.Unlock();
- });
- return std::make_shared<Iterator>(std::move(items));
-}
-
-std::shared_ptr<MemTableRep::Iterator> TransformRep::GetTransformIterator(
- const Slice& transformed) {
- ReadLock l(&rwlock_);
- auto bucket = buckets_.find(transformed);
- if (bucket == buckets_.end()) {
- return EmptyIterator::GetInstance();
- }
- return std::make_shared<TransformIterator>(bucket->second,
- GetLock(transformed));
-}
-
-std::shared_ptr<MemTableRep::Iterator> TransformRep::GetIterator(
- const Slice& slice) {
- auto transformed = transform_->Transform(slice);
- return GetTransformIterator(transformed);
-}
-
-std::shared_ptr<TransformRep::EmptyIterator>
- TransformRep::EmptyIterator::instance;
-
-} // anon namespace
-
-std::shared_ptr<MemTableRep> TransformRepFactory::CreateMemTableRep(
- MemTableRep::KeyComparator& compare, Arena* arena) {
- return std::make_shared<TransformRep>(compare, arena, transform_,
- bucket_count_, num_locks_);
-}
-
-std::shared_ptr<MemTableRep> PrefixHashRepFactory::CreateMemTableRep(
- MemTableRep::KeyComparator& compare, Arena* arena) {
- return std::make_shared<PrefixHashRep>(compare, arena, transform_,
- bucket_count_, num_locks_);
-}
-
-std::shared_ptr<MemTableRep::Iterator> PrefixHashRep::GetPrefixIterator(
- const Slice& prefix) {
- return TransformRep::GetTransformIterator(prefix);
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#include "rocksdb/memtablerep.h"
-
-#include <unordered_set>
-#include <set>
-#include <memory>
-#include <algorithm>
-#include <type_traits>
-
-#include "rocksdb/arena.h"
-#include "port/port.h"
-#include "util/mutexlock.h"
-#include "util/stl_wrappers.h"
-
-namespace rocksdb {
-namespace {
-
-using namespace stl_wrappers;
-
-class VectorRep : public MemTableRep {
- public:
- VectorRep(const KeyComparator& compare, Arena* arena, size_t count);
-
- // Insert key into the collection. (The caller will pack key and value into a
- // single buffer and pass that in as the parameter to Insert)
- // REQUIRES: nothing that compares equal to key is currently in the
- // collection.
- virtual void Insert(const char* key) override;
-
- // Returns true iff an entry that compares equal to key is in the collection.
- virtual bool Contains(const char* key) const override;
-
- virtual void MarkReadOnly() override;
-
- virtual size_t ApproximateMemoryUsage() override;
-
- virtual ~VectorRep() override { }
-
- class Iterator : public MemTableRep::Iterator {
- class VectorRep* vrep_;
- std::shared_ptr<std::vector<const char*>> bucket_;
- typename std::vector<const char*>::const_iterator mutable cit_;
- const KeyComparator& compare_;
- bool mutable sorted_;
- void DoSort() const;
- public:
- explicit Iterator(class VectorRep* vrep,
- std::shared_ptr<std::vector<const char*>> bucket,
- const KeyComparator& compare);
-
- // Initialize an iterator over the specified collection.
- // The returned iterator is not valid.
- // explicit Iterator(const MemTableRep* collection);
- virtual ~Iterator() override { };
-
- // Returns true iff the iterator is positioned at a valid node.
- virtual bool Valid() const override;
-
- // Returns the key at the current position.
- // REQUIRES: Valid()
- virtual const char* key() const override;
-
- // Advances to the next position.
- // REQUIRES: Valid()
- virtual void Next() override;
-
- // Advances to the previous position.
- // REQUIRES: Valid()
- virtual void Prev() override;
-
- // Advance to the first entry with a key >= target
- virtual void Seek(const char* target) override;
-
- // Position at the first entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToFirst() override;
-
- // Position at the last entry in collection.
- // Final state of iterator is Valid() iff collection is not empty.
- virtual void SeekToLast() override;
- };
-
- // Unhide default implementations of GetIterator()
- using MemTableRep::GetIterator;
-
- // Return an iterator over the keys in this representation.
- virtual std::shared_ptr<MemTableRep::Iterator> GetIterator() override;
-
- private:
- friend class Iterator;
- typedef std::vector<const char*> Bucket;
- std::shared_ptr<Bucket> bucket_;
- mutable port::RWMutex rwlock_;
- bool immutable_;
- bool sorted_;
- const KeyComparator& compare_;
-};
-
-void VectorRep::Insert(const char* key) {
- assert(!Contains(key));
- WriteLock l(&rwlock_);
- assert(!immutable_);
- bucket_->push_back(key);
-}
-
-// Returns true iff an entry that compares equal to key is in the collection.
-bool VectorRep::Contains(const char* key) const {
- ReadLock l(&rwlock_);
- return std::find(bucket_->begin(), bucket_->end(), key) != bucket_->end();
-}
-
-void VectorRep::MarkReadOnly() {
- WriteLock l(&rwlock_);
- immutable_ = true;
-}
-
-size_t VectorRep::ApproximateMemoryUsage() {
- return
- sizeof(bucket_) + sizeof(*bucket_) +
- bucket_->size() *
- sizeof(
- std::remove_reference<decltype(*bucket_)>::type::value_type
- );
-}
-
-VectorRep::VectorRep(const KeyComparator& compare, Arena* arena, size_t count)
- : bucket_(new Bucket()),
- immutable_(false),
- sorted_(false),
- compare_(compare) { bucket_.get()->reserve(count); }
-
-VectorRep::Iterator::Iterator(class VectorRep* vrep,
- std::shared_ptr<std::vector<const char*>> bucket,
- const KeyComparator& compare)
-: vrep_(vrep),
- bucket_(bucket),
- cit_(bucket_->end()),
- compare_(compare),
- sorted_(false) { }
-
-void VectorRep::Iterator::DoSort() const {
- // vrep is non-null means that we are working on an immutable memtable
- if (!sorted_ && vrep_ != nullptr) {
- WriteLock l(&vrep_->rwlock_);
- if (!vrep_->sorted_) {
- std::sort(bucket_->begin(), bucket_->end(), Compare(compare_));
- cit_ = bucket_->begin();
- vrep_->sorted_ = true;
- }
- sorted_ = true;
- }
- if (!sorted_) {
- std::sort(bucket_->begin(), bucket_->end(), Compare(compare_));
- cit_ = bucket_->begin();
- sorted_ = true;
- }
- assert(sorted_);
- assert(vrep_ == nullptr || vrep_->sorted_);
-}
-
-// Returns true iff the iterator is positioned at a valid node.
-bool VectorRep::Iterator::Valid() const {
- DoSort();
- return cit_ != bucket_->end();
-}
-
-// Returns the key at the current position.
-// REQUIRES: Valid()
-const char* VectorRep::Iterator::key() const {
- assert(Valid());
- return *cit_;
-}
-
-// Advances to the next position.
-// REQUIRES: Valid()
-void VectorRep::Iterator::Next() {
- assert(Valid());
- if (cit_ == bucket_->end()) {
- return;
- }
- ++cit_;
-}
-
-// Advances to the previous position.
-// REQUIRES: Valid()
-void VectorRep::Iterator::Prev() {
- assert(Valid());
- if (cit_ == bucket_->begin()) {
- // If you try to go back from the first element, the iterator should be
- // invalidated. So we set it to past-the-end. This means that you can
- // treat the container circularly.
- cit_ = bucket_->end();
- } else {
- --cit_;
- }
-}
-
-// Advance to the first entry with a key >= target
-void VectorRep::Iterator::Seek(const char* target) {
- DoSort();
- // Do binary search to find first value not less than the target
- cit_ = std::equal_range(bucket_->begin(),
- bucket_->end(),
- target,
- [this] (const char* a, const char* b) {
- return compare_(a, b) < 0;
- }).first;
-}
-
-// Position at the first entry in collection.
-// Final state of iterator is Valid() iff collection is not empty.
-void VectorRep::Iterator::SeekToFirst() {
- DoSort();
- cit_ = bucket_->begin();
-}
-
-// Position at the last entry in collection.
-// Final state of iterator is Valid() iff collection is not empty.
-void VectorRep::Iterator::SeekToLast() {
- DoSort();
- cit_ = bucket_->end();
- if (bucket_->size() != 0) {
- --cit_;
- }
-}
-
-std::shared_ptr<MemTableRep::Iterator> VectorRep::GetIterator() {
- ReadLock l(&rwlock_);
- // Do not sort here. The sorting would be done the first time
- // a Seek is performed on the iterator.
- if (immutable_) {
- return std::make_shared<Iterator>(this, bucket_, compare_);
- } else {
- std::shared_ptr<Bucket> tmp;
- tmp.reset(new Bucket(*bucket_)); // make a copy
- return std::make_shared<Iterator>(nullptr, tmp, compare_);
- }
-}
-} // anon namespace
-
-std::shared_ptr<MemTableRep> VectorRepFactory::CreateMemTableRep(
- MemTableRep::KeyComparator& compare, Arena* arena) {
- return std::make_shared<VectorRep>(compare, arena, count_);
-}
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2013, Facebook, Inc. All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-#ifndef MERGE_OPERATORS_H
-#define MERGE_OPERATORS_H
-
-#include <memory>
-#include <stdio.h>
-
-#include "rocksdb/merge_operator.h"
-
-namespace rocksdb {
-
-class MergeOperators {
- public:
- static std::shared_ptr<MergeOperator> CreatePutOperator();
- static std::shared_ptr<MergeOperator> CreateUInt64AddOperator();
- static std::shared_ptr<MergeOperator> CreateStringAppendOperator();
- static std::shared_ptr<MergeOperator> CreateStringAppendTESTOperator();
-
- // Will return a different merge operator depending on the string.
- // TODO: Hook the "name" up to the actual Name() of the MergeOperators?
- static std::shared_ptr<MergeOperator> CreateFromStringId(
- const std::string& name) {
- if (name == "put") {
- return CreatePutOperator();
- } else if ( name == "uint64add") {
- return CreateUInt64AddOperator();
- } else if (name == "stringappend") {
- return CreateStringAppendOperator();
- } else if (name == "stringappendtest") {
- return CreateStringAppendTESTOperator();
- } else {
- // Empty or unknown, just return nullptr
- return nullptr;
- }
- }
-
-};
-
-} // namespace rocksdb
-
-#endif
+++ /dev/null
-#include <memory>
-#include "rocksdb/slice.h"
-#include "rocksdb/merge_operator.h"
-#include "utilities/merge_operators.h"
-
-using namespace rocksdb;
-
-namespace { // anonymous namespace
-
-// A merge operator that mimics Put semantics
-// Since this merge-operator will not be used in production,
-// it is implemented as a non-associative merge operator to illustrate the
-// new interface and for testing purposes. (That is, we inherit from
-// the MergeOperator class rather than the AssociativeMergeOperator
-// which would be simpler in this case).
-//
-// From the client-perspective, semantics are the same.
-class PutOperator : public MergeOperator {
- public:
- virtual bool FullMerge(const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operand_sequence,
- std::string* new_value,
- Logger* logger) const override {
- // Put basically only looks at the current/latest value
- assert(!operand_sequence.empty());
- assert(new_value != nullptr);
- new_value->assign(operand_sequence.back());
- return true;
- }
-
- virtual bool PartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const override {
- new_value->assign(right_operand.data(), right_operand.size());
- return true;
- }
-
- virtual const char* Name() const override {
- return "PutOperator";
- }
-};
-
-} // end of anonymous namespace
-
-namespace rocksdb {
-
-std::shared_ptr<MergeOperator> MergeOperators::CreatePutOperator() {
- return std::make_shared<PutOperator>();
-}
-
-}
+++ /dev/null
-/**
- * A MergeOperator for rocksdb that implements string append.
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#include "stringappend.h"
-
-#include <memory>
-#include <assert.h>
-
-#include "rocksdb/slice.h"
-#include "rocksdb/merge_operator.h"
-#include "utilities/merge_operators.h"
-
-namespace rocksdb {
-
-// Constructor: also specify the delimiter character.
-StringAppendOperator::StringAppendOperator(char delim_char)
- : delim_(delim_char) {
-}
-
-// Implementation for the merge operation (concatenates two strings)
-bool StringAppendOperator::Merge(const Slice& key,
- const Slice* existing_value,
- const Slice& value,
- std::string* new_value,
- Logger* logger) const {
-
- // Clear the *new_value for writing.
- assert(new_value);
- new_value->clear();
-
- if (!existing_value) {
- // No existing_value. Set *new_value = value
- new_value->assign(value.data(),value.size());
- } else {
- // Generic append (existing_value != null).
- // Reserve *new_value to correct size, and apply concatenation.
- new_value->reserve(existing_value->size() + 1 + value.size());
- new_value->assign(existing_value->data(),existing_value->size());
- new_value->append(1,delim_);
- new_value->append(value.data(), value.size());
- }
-
- return true;
-}
-
-const char* StringAppendOperator::Name() const {
- return "StringAppendOperator";
-}
-
-std::shared_ptr<MergeOperator> MergeOperators::CreateStringAppendOperator() {
- return std::make_shared<StringAppendOperator>(',');
-}
-
-} // namespace rocksdb
-
-
-
+++ /dev/null
-/**
- * A MergeOperator for rocksdb that implements string append.
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#pragma once
-#include "rocksdb/merge_operator.h"
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-class StringAppendOperator : public AssociativeMergeOperator {
- public:
- StringAppendOperator(char delim_char); /// Constructor: specify delimiter
-
- virtual bool Merge(const Slice& key,
- const Slice* existing_value,
- const Slice& value,
- std::string* new_value,
- Logger* logger) const override;
-
- virtual const char* Name() const override;
-
- private:
- char delim_; // The delimiter is inserted between elements
-
-};
-
-} // namespace rocksdb
-
+++ /dev/null
-/**
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#include "stringappend2.h"
-
-#include <memory>
-#include <assert.h>
-
-#include "rocksdb/slice.h"
-#include "rocksdb/merge_operator.h"
-#include "utilities/merge_operators.h"
-
-namespace rocksdb {
-
-// Constructor: also specify the delimiter character.
-StringAppendTESTOperator::StringAppendTESTOperator(char delim_char)
- : delim_(delim_char) {
-}
-
-// Implementation for the merge operation (concatenates two strings)
-bool StringAppendTESTOperator::FullMerge(
- const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operands,
- std::string* new_value,
- Logger* logger) const {
-
- // Clear the *new_value for writing.
- assert(new_value);
- new_value->clear();
-
- // Compute the space needed for the final result.
- int numBytes = 0;
- for(auto it = operands.begin(); it != operands.end(); ++it) {
- numBytes += it->size() + 1; // Plus 1 for the delimiter
- }
-
- // Only print the delimiter after the first entry has been printed
- bool printDelim = false;
-
- // Prepend the *existing_value if one exists.
- if (existing_value) {
- new_value->reserve(numBytes + existing_value->size());
- new_value->append(existing_value->data(), existing_value->size());
- printDelim = true;
- } else if (numBytes) {
- new_value->reserve(numBytes-1); // Minus 1 since we have one less delimiter
- }
-
- // Concatenate the sequence of strings (and add a delimiter between each)
- for(auto it = operands.begin(); it != operands.end(); ++it) {
- if (printDelim) {
- new_value->append(1,delim_);
- }
- new_value->append(*it);
- printDelim = true;
- }
-
- return true;
-}
-
-bool StringAppendTESTOperator::PartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const {
- return false;
-}
-
-// A version of PartialMerge that actually performs "partial merging".
-// Use this to simulate the exact behaviour of the StringAppendOperator.
-bool StringAppendTESTOperator::_AssocPartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const {
- // Clear the *new_value for writing.
- assert(new_value);
- new_value->clear();
-
- // Generic append
- // Reserve correct size for *new_value, and apply concatenation.
- new_value->reserve(left_operand.size() + 1 + right_operand.size());
- new_value->assign(left_operand.data(), left_operand.size());
- new_value->append(1,delim_);
- new_value->append(right_operand.data(), right_operand.size());
-
- return true;
-}
-
-const char* StringAppendTESTOperator::Name() const {
- return "StringAppendTESTOperator";
-}
-
-
-std::shared_ptr<MergeOperator>
-MergeOperators::CreateStringAppendTESTOperator() {
- return std::make_shared<StringAppendTESTOperator>(',');
-}
-
-} // namespace rocksdb
-
+++ /dev/null
-/**
- * A TEST MergeOperator for rocksdb that implements string append.
- * It is built using the MergeOperator interface rather than the simpler
- * AssociativeMergeOperator interface. This is useful for testing/benchmarking.
- * While the two operators are semantically the same, all production code
- * should use the StringAppendOperator defined in stringappend.{h,cc}. The
- * operator defined in the present file is primarily for testing.
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#pragma once
-#include "rocksdb/merge_operator.h"
-#include "rocksdb/slice.h"
-
-namespace rocksdb {
-
-class StringAppendTESTOperator : public MergeOperator {
- public:
-
- StringAppendTESTOperator(char delim_char); /// Constructor with delimiter
-
- virtual bool FullMerge(const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operand_sequence,
- std::string* new_value,
- Logger* logger) const override;
-
- virtual bool PartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const override;
-
- virtual const char* Name() const override;
-
- private:
- // A version of PartialMerge that actually performs "partial merging".
- // Use this to simulate the exact behaviour of the StringAppendOperator.
- bool _AssocPartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const;
-
- char delim_; // The delimiter is inserted between elements
-
-};
-
-} // namespace rocksdb
+++ /dev/null
-/**
- * An persistent map : key -> (list of strings), using rocksdb merge.
- * This file is a test-harness / use-case for the StringAppendOperator.
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook, Inc.
-*/
-
-#include <iostream>
-#include <map>
-
-#include "rocksdb/db.h"
-#include "rocksdb/merge_operator.h"
-#include "utilities/merge_operators.h"
-#include "utilities/merge_operators/string_append/stringappend.h"
-#include "utilities/merge_operators/string_append/stringappend2.h"
-#include "utilities/ttl/db_ttl.h"
-#include "util/testharness.h"
-#include "util/random.h"
-
-using namespace rocksdb;
-
-namespace rocksdb {
-
-// Path to the database on file system
-const std::string kDbName = "/tmp/mergetestdb";
-
-// OpenDb opens a (possibly new) rocksdb database with a StringAppendOperator
-std::shared_ptr<DB> OpenNormalDb(char delim_char) {
- DB* db;
- Options options;
- options.create_if_missing = true;
- options.merge_operator.reset(new StringAppendOperator(delim_char));
- ASSERT_OK(DB::Open(options, kDbName, &db));
- return std::shared_ptr<DB>(db);
-}
-
-// Open a TtlDB with a non-associative StringAppendTESTOperator
-std::shared_ptr<DB> OpenTtlDb(char delim_char) {
- StackableDB* db;
- Options options;
- options.create_if_missing = true;
- options.merge_operator.reset(new StringAppendTESTOperator(delim_char));
- Status s;
- db = new DBWithTTL(123456, options, kDbName, s, false);
- ASSERT_OK(s);
- return std::shared_ptr<DB>(db);
-}
-
-/// StringLists represents a set of string-lists, each with a key-index.
-/// Supports Append(list, string) and Get(list)
-class StringLists {
- public:
-
- //Constructor: specifies the rocksdb db
- StringLists(std::shared_ptr<DB> db)
- : db_(db),
- merge_option_(),
- get_option_() {
- assert(db);
- }
-
- // Append string val onto the list defined by key; return true on success
- bool Append(const std::string& key, const std::string& val){
- Slice valSlice(val.data(), val.size());
- auto s = db_->Merge(merge_option_, key, valSlice);
-
- if (s.ok()) {
- return true;
- } else {
- std::cerr << "ERROR " << s.ToString() << std::endl;
- return false;
- }
- }
-
- // Returns the list of strings associated with key (or "" if does not exist)
- bool Get(const std::string& key, std::string* const result){
- assert(result != NULL); // we should have a place to store the result
- auto s = db_->Get(get_option_, key, result);
-
- if (s.ok()) {
- return true;
- }
-
- // Either key does not exist, or there is some error.
- *result = ""; // Always return empty string (just for convenvtion)
-
- //NotFound is okay; just return empty (similar to std::map)
- //But network or db errors, etc, should fail the test (or at least yell)
- if (!s.IsNotFound()) {
- std::cerr << "ERROR " << s.ToString() << std::endl;
- }
-
- // Always return false if s.ok() was not true
- return false;
- }
-
-
- private:
- std::shared_ptr<DB> db_;
- WriteOptions merge_option_;
- ReadOptions get_option_;
-
-};
-
-
-// The class for unit-testing
-class StringAppendOperatorTest {
- public:
- StringAppendOperatorTest() {
- DestroyDB(kDbName, Options()); // Start each test with a fresh DB
- }
-
- typedef std::shared_ptr<DB> (* OpenFuncPtr)(char);
-
- // Allows user to open databases with different configurations.
- // e.g.: Can open a DB or a TtlDB, etc.
- static void SetOpenDbFunction(OpenFuncPtr func) {
- OpenDb = func;
- }
-
- protected:
- static OpenFuncPtr OpenDb;
-};
-StringAppendOperatorTest::OpenFuncPtr StringAppendOperatorTest::OpenDb = nullptr;
-
-// THE TEST CASES BEGIN HERE
-
-TEST(StringAppendOperatorTest, IteratorTest) {
- auto db_ = OpenDb(',');
- StringLists slists(db_);
-
- slists.Append("k1", "v1");
- slists.Append("k1", "v2");
- slists.Append("k1", "v3");
-
- slists.Append("k2", "a1");
- slists.Append("k2", "a2");
- slists.Append("k2", "a3");
-
- std::string res;
- std::unique_ptr<rocksdb::Iterator> it(db_->NewIterator(ReadOptions()));
- std::string k1("k1");
- std::string k2("k2");
- bool first = true;
- for (it->Seek(k1); it->Valid(); it->Next()) {
- res = it->value().ToString();
- if (first) {
- ASSERT_EQ(res, "v1,v2,v3");
- first = false;
- } else {
- ASSERT_EQ(res, "a1,a2,a3");
- }
- }
- slists.Append("k2", "a4");
- slists.Append("k1", "v4");
-
- // Snapshot should still be the same. Should ignore a4 and v4.
- first = true;
- for (it->Seek(k1); it->Valid(); it->Next()) {
- res = it->value().ToString();
- if (first) {
- ASSERT_EQ(res, "v1,v2,v3");
- first = false;
- } else {
- ASSERT_EQ(res, "a1,a2,a3");
- }
- }
-
-
- // Should release the snapshot and be aware of the new stuff now
- it.reset(db_->NewIterator(ReadOptions()));
- first = true;
- for (it->Seek(k1); it->Valid(); it->Next()) {
- res = it->value().ToString();
- if (first) {
- ASSERT_EQ(res, "v1,v2,v3,v4");
- first = false;
- } else {
- ASSERT_EQ(res, "a1,a2,a3,a4");
- }
- }
-
- // start from k2 this time.
- for (it->Seek(k2); it->Valid(); it->Next()) {
- res = it->value().ToString();
- if (first) {
- ASSERT_EQ(res, "v1,v2,v3,v4");
- first = false;
- } else {
- ASSERT_EQ(res, "a1,a2,a3,a4");
- }
- }
-
- slists.Append("k3", "g1");
-
- it.reset(db_->NewIterator(ReadOptions()));
- first = true;
- std::string k3("k3");
- for(it->Seek(k2); it->Valid(); it->Next()) {
- res = it->value().ToString();
- if (first) {
- ASSERT_EQ(res, "a1,a2,a3,a4");
- first = false;
- } else {
- ASSERT_EQ(res, "g1");
- }
- }
- for(it->Seek(k3); it->Valid(); it->Next()) {
- res = it->value().ToString();
- if (first) {
- // should not be hit
- ASSERT_EQ(res, "a1,a2,a3,a4");
- first = false;
- } else {
- ASSERT_EQ(res, "g1");
- }
- }
-
-}
-
-TEST(StringAppendOperatorTest, SimpleTest) {
- auto db = OpenDb(',');
- StringLists slists(db);
-
- slists.Append("k1", "v1");
- slists.Append("k1", "v2");
- slists.Append("k1", "v3");
-
- std::string res;
- bool status = slists.Get("k1", &res);
-
- ASSERT_TRUE(status);
- ASSERT_EQ(res, "v1,v2,v3");
-}
-
-TEST(StringAppendOperatorTest, SimpleDelimiterTest) {
- auto db = OpenDb('|');
- StringLists slists(db);
-
- slists.Append("k1", "v1");
- slists.Append("k1", "v2");
- slists.Append("k1", "v3");
-
- std::string res;
- slists.Get("k1", &res);
- ASSERT_EQ(res, "v1|v2|v3");
-}
-
-TEST(StringAppendOperatorTest, OneValueNoDelimiterTest) {
- auto db = OpenDb('!');
- StringLists slists(db);
-
- slists.Append("random_key", "single_val");
-
- std::string res;
- slists.Get("random_key", &res);
- ASSERT_EQ(res, "single_val");
-}
-
-TEST(StringAppendOperatorTest, VariousKeys) {
- auto db = OpenDb('\n');
- StringLists slists(db);
-
- slists.Append("c", "asdasd");
- slists.Append("a", "x");
- slists.Append("b", "y");
- slists.Append("a", "t");
- slists.Append("a", "r");
- slists.Append("b", "2");
- slists.Append("c", "asdasd");
-
- std::string a, b, c;
- bool sa, sb, sc;
- sa = slists.Get("a", &a);
- sb = slists.Get("b", &b);
- sc = slists.Get("c", &c);
-
- ASSERT_TRUE(sa && sb && sc); // All three keys should have been found
-
- ASSERT_EQ(a, "x\nt\nr");
- ASSERT_EQ(b, "y\n2");
- ASSERT_EQ(c, "asdasd\nasdasd");
-}
-
-// Generate semi random keys/words from a small distribution.
-TEST(StringAppendOperatorTest, RandomMixGetAppend) {
- auto db = OpenDb(' ');
- StringLists slists(db);
-
- // Generate a list of random keys and values
- const int kWordCount = 15;
- std::string words[] = {"sdasd", "triejf", "fnjsdfn", "dfjisdfsf", "342839",
- "dsuha", "mabuais", "sadajsid", "jf9834hf", "2d9j89",
- "dj9823jd", "a", "dk02ed2dh", "$(jd4h984$(*", "mabz"};
- const int kKeyCount = 6;
- std::string keys[] = {"dhaiusdhu", "denidw", "daisda", "keykey", "muki",
- "shzassdianmd"};
-
- // Will store a local copy of all data in order to verify correctness
- std::map<std::string, std::string> parallel_copy;
-
- // Generate a bunch of random queries (Append and Get)!
- enum query_t { APPEND_OP, GET_OP, NUM_OPS };
- Random randomGen(1337); //deterministic seed; always get same results!
-
- const int kNumQueries = 30;
- for (int q=0; q<kNumQueries; ++q) {
- // Generate a random query (Append or Get) and random parameters
- query_t query = (query_t)randomGen.Uniform((int)NUM_OPS);
- std::string key = keys[randomGen.Uniform((int)kKeyCount)];
- std::string word = words[randomGen.Uniform((int)kWordCount)];
-
- // Apply the query and any checks.
- if (query == APPEND_OP) {
-
- // Apply the rocksdb test-harness Append defined above
- slists.Append(key, word); //apply the rocksdb append
-
- // Apply the similar "Append" to the parallel copy
- if (parallel_copy[key].size() > 0) {
- parallel_copy[key] += " " + word;
- } else {
- parallel_copy[key] = word;
- }
-
- } else if (query == GET_OP) {
- // Assumes that a non-existent key just returns <empty>
- std::string res;
- slists.Get(key, &res);
- ASSERT_EQ(res, parallel_copy[key]);
- }
-
- }
-
-}
-
-TEST(StringAppendOperatorTest, BIGRandomMixGetAppend) {
- auto db = OpenDb(' ');
- StringLists slists(db);
-
- // Generate a list of random keys and values
- const int kWordCount = 15;
- std::string words[] = {"sdasd", "triejf", "fnjsdfn", "dfjisdfsf", "342839",
- "dsuha", "mabuais", "sadajsid", "jf9834hf", "2d9j89",
- "dj9823jd", "a", "dk02ed2dh", "$(jd4h984$(*", "mabz"};
- const int kKeyCount = 6;
- std::string keys[] = {"dhaiusdhu", "denidw", "daisda", "keykey", "muki",
- "shzassdianmd"};
-
- // Will store a local copy of all data in order to verify correctness
- std::map<std::string, std::string> parallel_copy;
-
- // Generate a bunch of random queries (Append and Get)!
- enum query_t { APPEND_OP, GET_OP, NUM_OPS };
- Random randomGen(9138204); // deterministic seed
-
- const int kNumQueries = 1000;
- for (int q=0; q<kNumQueries; ++q) {
- // Generate a random query (Append or Get) and random parameters
- query_t query = (query_t)randomGen.Uniform((int)NUM_OPS);
- std::string key = keys[randomGen.Uniform((int)kKeyCount)];
- std::string word = words[randomGen.Uniform((int)kWordCount)];
-
- //Apply the query and any checks.
- if (query == APPEND_OP) {
-
- // Apply the rocksdb test-harness Append defined above
- slists.Append(key, word); //apply the rocksdb append
-
- // Apply the similar "Append" to the parallel copy
- if (parallel_copy[key].size() > 0) {
- parallel_copy[key] += " " + word;
- } else {
- parallel_copy[key] = word;
- }
-
- } else if (query == GET_OP) {
- // Assumes that a non-existent key just returns <empty>
- std::string res;
- slists.Get(key, &res);
- ASSERT_EQ(res, parallel_copy[key]);
- }
-
- }
-
-}
-
-
-TEST(StringAppendOperatorTest, PersistentVariousKeys) {
- // Perform the following operations in limited scope
- {
- auto db = OpenDb('\n');
- StringLists slists(db);
-
- slists.Append("c", "asdasd");
- slists.Append("a", "x");
- slists.Append("b", "y");
- slists.Append("a", "t");
- slists.Append("a", "r");
- slists.Append("b", "2");
- slists.Append("c", "asdasd");
-
- std::string a, b, c;
- slists.Get("a", &a);
- slists.Get("b", &b);
- slists.Get("c", &c);
-
- ASSERT_EQ(a, "x\nt\nr");
- ASSERT_EQ(b, "y\n2");
- ASSERT_EQ(c, "asdasd\nasdasd");
- }
-
- // Reopen the database (the previous changes should persist / be remembered)
- {
- auto db = OpenDb('\n');
- StringLists slists(db);
-
- slists.Append("c", "bbnagnagsx");
- slists.Append("a", "sa");
- slists.Append("b", "df");
- slists.Append("a", "gh");
- slists.Append("a", "jk");
- slists.Append("b", "l;");
- slists.Append("c", "rogosh");
-
- // The previous changes should be on disk (L0)
- // The most recent changes should be in memory (MemTable)
- // Hence, this will test both Get() paths.
- std::string a, b, c;
- slists.Get("a", &a);
- slists.Get("b", &b);
- slists.Get("c", &c);
-
- ASSERT_EQ(a, "x\nt\nr\nsa\ngh\njk");
- ASSERT_EQ(b, "y\n2\ndf\nl;");
- ASSERT_EQ(c, "asdasd\nasdasd\nbbnagnagsx\nrogosh");
- }
-
- // Reopen the database (the previous changes should persist / be remembered)
- {
- auto db = OpenDb('\n');
- StringLists slists(db);
-
- // All changes should be on disk. This will test VersionSet Get()
- std::string a, b, c;
- slists.Get("a", &a);
- slists.Get("b", &b);
- slists.Get("c", &c);
-
- ASSERT_EQ(a, "x\nt\nr\nsa\ngh\njk");
- ASSERT_EQ(b, "y\n2\ndf\nl;");
- ASSERT_EQ(c, "asdasd\nasdasd\nbbnagnagsx\nrogosh");
- }
-}
-
-TEST(StringAppendOperatorTest, PersistentFlushAndCompaction) {
- // Perform the following operations in limited scope
- {
- auto db = OpenDb('\n');
- StringLists slists(db);
- std::string a, b, c;
- bool success;
-
- // Append, Flush, Get
- slists.Append("c", "asdasd");
- db->Flush(rocksdb::FlushOptions());
- success = slists.Get("c", &c);
- ASSERT_TRUE(success);
- ASSERT_EQ(c, "asdasd");
-
- // Append, Flush, Append, Get
- slists.Append("a", "x");
- slists.Append("b", "y");
- db->Flush(rocksdb::FlushOptions());
- slists.Append("a", "t");
- slists.Append("a", "r");
- slists.Append("b", "2");
-
- success = slists.Get("a", &a);
- assert(success == true);
- ASSERT_EQ(a, "x\nt\nr");
-
- success = slists.Get("b", &b);
- assert(success == true);
- ASSERT_EQ(b, "y\n2");
-
- // Append, Get
- success = slists.Append("c", "asdasd");
- assert(success);
- success = slists.Append("b", "monkey");
- assert(success);
-
- // I omit the "assert(success)" checks here.
- slists.Get("a", &a);
- slists.Get("b", &b);
- slists.Get("c", &c);
-
- ASSERT_EQ(a, "x\nt\nr");
- ASSERT_EQ(b, "y\n2\nmonkey");
- ASSERT_EQ(c, "asdasd\nasdasd");
- }
-
- // Reopen the database (the previous changes should persist / be remembered)
- {
- auto db = OpenDb('\n');
- StringLists slists(db);
- std::string a, b, c;
-
- // Get (Quick check for persistence of previous database)
- slists.Get("a", &a);
- ASSERT_EQ(a, "x\nt\nr");
-
- //Append, Compact, Get
- slists.Append("c", "bbnagnagsx");
- slists.Append("a", "sa");
- slists.Append("b", "df");
- db->CompactRange(nullptr, nullptr);
- slists.Get("a", &a);
- slists.Get("b", &b);
- slists.Get("c", &c);
- ASSERT_EQ(a, "x\nt\nr\nsa");
- ASSERT_EQ(b, "y\n2\nmonkey\ndf");
- ASSERT_EQ(c, "asdasd\nasdasd\nbbnagnagsx");
-
- // Append, Get
- slists.Append("a", "gh");
- slists.Append("a", "jk");
- slists.Append("b", "l;");
- slists.Append("c", "rogosh");
- slists.Get("a", &a);
- slists.Get("b", &b);
- slists.Get("c", &c);
- ASSERT_EQ(a, "x\nt\nr\nsa\ngh\njk");
- ASSERT_EQ(b, "y\n2\nmonkey\ndf\nl;");
- ASSERT_EQ(c, "asdasd\nasdasd\nbbnagnagsx\nrogosh");
-
- // Compact, Get
- db->CompactRange(nullptr, nullptr);
- ASSERT_EQ(a, "x\nt\nr\nsa\ngh\njk");
- ASSERT_EQ(b, "y\n2\nmonkey\ndf\nl;");
- ASSERT_EQ(c, "asdasd\nasdasd\nbbnagnagsx\nrogosh");
-
- // Append, Flush, Compact, Get
- slists.Append("b", "afcg");
- db->Flush(rocksdb::FlushOptions());
- db->CompactRange(nullptr, nullptr);
- slists.Get("b", &b);
- ASSERT_EQ(b, "y\n2\nmonkey\ndf\nl;\nafcg");
- }
-}
-
-TEST(StringAppendOperatorTest, SimpleTestNullDelimiter) {
- auto db = OpenDb('\0');
- StringLists slists(db);
-
- slists.Append("k1", "v1");
- slists.Append("k1", "v2");
- slists.Append("k1", "v3");
-
- std::string res;
- bool status = slists.Get("k1", &res);
- ASSERT_TRUE(status);
-
- // Construct the desired string. Default constructor doesn't like '\0' chars.
- std::string checker("v1,v2,v3"); // Verify that the string is right size.
- checker[2] = '\0'; // Use null delimiter instead of comma.
- checker[5] = '\0';
- assert(checker.size() == 8); // Verify it is still the correct size
-
- // Check that the rocksdb result string matches the desired string
- assert(res.size() == checker.size());
- ASSERT_EQ(res, checker);
-}
-
-} // namespace rocksdb
-
-int main(int arc, char** argv) {
- // Run with regular database
- {
- fprintf(stderr, "Running tests with regular db and operator.\n");
- StringAppendOperatorTest::SetOpenDbFunction(&OpenNormalDb);
- rocksdb::test::RunAllTests();
- }
-
- // Run with TTL
- {
- fprintf(stderr, "Running tests with ttl db and generic operator.\n");
- StringAppendOperatorTest::SetOpenDbFunction(&OpenTtlDb);
- rocksdb::test::RunAllTests();
- }
-
- return 0;
-}
+++ /dev/null
-#include <memory>
-#include "rocksdb/env.h"
-#include "rocksdb/merge_operator.h"
-#include "rocksdb/slice.h"
-#include "util/coding.h"
-#include "utilities/merge_operators.h"
-
-using namespace rocksdb;
-
-namespace { // anonymous namespace
-
-// A 'model' merge operator with uint64 addition semantics
-// Implemented as an AssociativeMergeOperator for simplicty and example.
-class UInt64AddOperator : public AssociativeMergeOperator {
- public:
- virtual bool Merge(const Slice& key,
- const Slice* existing_value,
- const Slice& value,
- std::string* new_value,
- Logger* logger) const override {
- uint64_t orig_value = 0;
- if (existing_value){
- orig_value = DecodeInteger(*existing_value, logger);
- }
- uint64_t operand = DecodeInteger(value, logger);
-
- assert(new_value);
- new_value->clear();
- PutFixed64(new_value, orig_value + operand);
-
- return true; // Return true always since corruption will be treated as 0
- }
-
- virtual const char* Name() const override {
- return "UInt64AddOperator";
- }
-
- private:
- // Takes the string and decodes it into a uint64_t
- // On error, prints a message and returns 0
- uint64_t DecodeInteger(const Slice& value, Logger* logger) const {
- uint64_t result = 0;
-
- if (value.size() == sizeof(uint64_t)) {
- result = DecodeFixed64(value.data());
- } else if (logger != nullptr) {
- // If value is corrupted, treat it as 0
- Log(logger, "uint64 value corruption, size: %zu > %zu",
- value.size(), sizeof(uint64_t));
- }
-
- return result;
- }
-
-};
-
-}
-
-namespace rocksdb {
-
-std::shared_ptr<MergeOperator> MergeOperators::CreateUInt64AddOperator() {
- return std::make_shared<UInt64AddOperator>();
-}
-
-}
+++ /dev/null
-This folder defines a REDIS-style interface for Rocksdb.
-Right now it is written as a simple tag-on in the rocksdb::RedisLists class.
-It implements Redis Lists, and supports only the "non-blocking operations".
-
-Internally, the set of lists are stored in a rocksdb database, mapping keys to
-values. Each "value" is the list itself, storing a sequence of "elements".
-Each element is stored as a 32-bit-integer, followed by a sequence of bytes.
-The 32-bit-integer represents the length of the element (that is, the number
-of bytes that follow). And then that many bytes follow.
-
-
-NOTE: This README file may be old. See the actual redis_lists.cc file for
-definitive details on the implementation. There should be a header at the top
-of that file, explaining a bit of the implementation details.
+++ /dev/null
-/**
- * A simple structure for exceptions in RedisLists.
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#pragma once
-#include <exception>
-
-namespace rocksdb {
-
-class RedisListException: public std::exception {
- public:
- const char* what() const throw() {
- return "Invalid operation or corrupt data in Redis List.";
- }
-};
-
-} // namespace rocksdb
+++ /dev/null
-/**
- * RedisListIterator:
- * An abstraction over the "list" concept (e.g.: for redis lists).
- * Provides functionality to read, traverse, edit, and write these lists.
- *
- * Upon construction, the RedisListIterator is given a block of list data.
- * Internally, it stores a pointer to the data and a pointer to current item.
- * It also stores a "result" list that will be mutated over time.
- *
- * Traversal and mutation are done by "forward iteration".
- * The Push() and Skip() methods will advance the iterator to the next item.
- * However, Push() will also "write the current item to the result".
- * Skip() will simply move to next item, causing current item to be dropped.
- *
- * Upon completion, the result (accessible by WriteResult()) will be saved.
- * All "skipped" items will be gone; all "pushed" items will remain.
- *
- * @throws Any of the operations may throw a RedisListException if an invalid
- * operation is performed or if the data is found to be corrupt.
- *
- * @notes By default, if WriteResult() is called part-way through iteration,
- * it will automatically advance the iterator to the end, and Keep()
- * all items that haven't been traversed yet. This may be subject
- * to review.
- *
- * @notes Can access the "current" item via GetCurrent(), and other
- * list-specific information such as Length().
- *
- * @notes The internal representation is due to change at any time. Presently,
- * the list is represented as follows:
- * - 32-bit integer header: the number of items in the list
- * - For each item:
- * - 32-bit int (n): the number of bytes representing this item
- * - n bytes of data: the actual data.
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#pragma once
-
-#include <string>
-
-#include "redis_list_exception.h"
-#include "rocksdb/slice.h"
-#include "util/coding.h"
-
-namespace rocksdb {
-
-/// An abstraction over the "list" concept.
-/// All operations may throw a RedisListException
-class RedisListIterator {
- public:
- /// Construct a redis-list-iterator based on data.
- /// If the data is non-empty, it must formatted according to @notes above.
- ///
- /// If the data is valid, we can assume the following invariant(s):
- /// a) length_, num_bytes_ are set correctly.
- /// b) cur_byte_ always refers to the start of the current element,
- /// just before the bytes that specify element length.
- /// c) cur_elem_ is always the index of the current element.
- /// d) cur_elem_length_ is always the number of bytes in current element,
- /// excluding the 4-byte header itself.
- /// e) result_ will always contain data_[0..cur_byte_) and a header
- /// f) Whenever corrupt data is encountered or an invalid operation is
- /// attempted, a RedisListException will immediately be thrown.
- RedisListIterator(const std::string& list_data)
- : data_(list_data.data()),
- num_bytes_(list_data.size()),
- cur_byte_(0),
- cur_elem_(0),
- cur_elem_length_(0),
- length_(0),
- result_() {
-
- // Initialize the result_ (reserve enough space for header)
- InitializeResult();
-
- // Parse the data only if it is not empty.
- if (num_bytes_ == 0) {
- return;
- }
-
- // If non-empty, but less than 4 bytes, data must be corrupt
- if (num_bytes_ < sizeof(length_)) {
- ThrowError("Corrupt header."); // Will break control flow
- }
-
- // Good. The first bytes specify the number of elements
- length_ = DecodeFixed32(data_);
- cur_byte_ = sizeof(length_);
-
- // If we have at least one element, point to that element.
- // Also, read the first integer of the element (specifying the size),
- // if possible.
- if (length_ > 0) {
- if (cur_byte_ + sizeof(cur_elem_length_) <= num_bytes_) {
- cur_elem_length_ = DecodeFixed32(data_+cur_byte_);
- } else {
- ThrowError("Corrupt data for first element.");
- }
- }
-
- // At this point, we are fully set-up.
- // The invariants described in the header should now be true.
- }
-
- /// Reserve some space for the result_.
- /// Equivalent to result_.reserve(bytes).
- void Reserve(int bytes) {
- result_.reserve(bytes);
- }
-
- /// Go to next element in data file.
- /// Also writes the current element to result_.
- RedisListIterator& Push() {
- WriteCurrentElement();
- MoveNext();
- return *this;
- }
-
- /// Go to next element in data file.
- /// Drops/skips the current element. It will not be written to result_.
- RedisListIterator& Skip() {
- MoveNext();
- --length_; // One less item
- --cur_elem_; // We moved one forward, but index did not change
- return *this;
- }
-
- /// Insert elem into the result_ (just BEFORE the current element / byte)
- /// Note: if Done() (i.e.: iterator points to end), this will append elem.
- void InsertElement(const Slice& elem) {
- // Ensure we are in a valid state
- CheckErrors();
-
- const int kOrigSize = result_.size();
- result_.resize(kOrigSize + SizeOf(elem));
- EncodeFixed32(result_.data() + kOrigSize, elem.size());
- memcpy(result_.data() + kOrigSize + sizeof(uint32_t),
- elem.data(),
- elem.size());
- ++length_;
- ++cur_elem_;
- }
-
- /// Access the current element, and save the result into *curElem
- void GetCurrent(Slice* curElem) {
- // Ensure we are in a valid state
- CheckErrors();
-
- // Ensure that we are not past the last element.
- if (Done()) {
- ThrowError("Invalid dereferencing.");
- }
-
- // Dereference the element
- *curElem = Slice(data_+cur_byte_+sizeof(cur_elem_length_),
- cur_elem_length_);
- }
-
- // Number of elements
- int Length() const {
- return length_;
- }
-
- // Number of bytes in the final representation (i.e: WriteResult().size())
- int Size() const {
- // result_ holds the currently written data
- // data_[cur_byte..num_bytes-1] is the remainder of the data
- return result_.size() + (num_bytes_ - cur_byte_);
- }
-
- // Reached the end?
- bool Done() const {
- return cur_byte_ >= num_bytes_ || cur_elem_ >= length_;
- }
-
- /// Returns a string representing the final, edited, data.
- /// Assumes that all bytes of data_ in the range [0,cur_byte_) have been read
- /// and that result_ contains this data.
- /// The rest of the data must still be written.
- /// So, this method ADVANCES THE ITERATOR TO THE END before writing.
- Slice WriteResult() {
- CheckErrors();
-
- // The header should currently be filled with dummy data (0's)
- // Correctly update the header.
- // Note, this is safe since result_ is a vector (guaranteed contiguous)
- EncodeFixed32(&result_[0],length_);
-
- // Append the remainder of the data to the result.
- result_.insert(result_.end(),data_+cur_byte_, data_ +num_bytes_);
-
- // Seek to end of file
- cur_byte_ = num_bytes_;
- cur_elem_ = length_;
- cur_elem_length_ = 0;
-
- // Return the result
- return Slice(result_.data(),result_.size());
- }
-
- public: // Static public functions
-
- /// An upper-bound on the amount of bytes needed to store this element.
- /// This is used to hide representation information from the client.
- /// E.G. This can be used to compute the bytes we want to Reserve().
- static uint32_t SizeOf(const Slice& elem) {
- // [Integer Length . Data]
- return sizeof(uint32_t) + elem.size();
- }
-
- private: // Private functions
-
- /// Initializes the result_ string.
- /// It will fill the first few bytes with 0's so that there is
- /// enough space for header information when we need to write later.
- /// Currently, "header information" means: the length (number of elements)
- /// Assumes that result_ is empty to begin with
- void InitializeResult() {
- assert(result_.empty()); // Should always be true.
- result_.resize(sizeof(uint32_t),0); // Put a block of 0's as the header
- }
-
- /// Go to the next element (used in Push() and Skip())
- void MoveNext() {
- CheckErrors();
-
- // Check to make sure we are not already in a finished state
- if (Done()) {
- ThrowError("Attempting to iterate past end of list.");
- }
-
- // Move forward one element.
- cur_byte_ += sizeof(cur_elem_length_) + cur_elem_length_;
- ++cur_elem_;
-
- // If we are at the end, finish
- if (Done()) {
- cur_elem_length_ = 0;
- return;
- }
-
- // Otherwise, we should be able to read the new element's length
- if (cur_byte_ + sizeof(cur_elem_length_) > num_bytes_) {
- ThrowError("Corrupt element data.");
- }
-
- // Set the new element's length
- cur_elem_length_ = DecodeFixed32(data_+cur_byte_);
-
- return;
- }
-
- /// Append the current element (pointed to by cur_byte_) to result_
- /// Assumes result_ has already been reserved appropriately.
- void WriteCurrentElement() {
- // First verify that the iterator is still valid.
- CheckErrors();
- if (Done()) {
- ThrowError("Attempting to write invalid element.");
- }
-
- // Append the cur element.
- result_.insert(result_.end(),
- data_+cur_byte_,
- data_+cur_byte_+ sizeof(uint32_t) + cur_elem_length_);
- }
-
- /// Will ThrowError() if neccessary.
- /// Checks for common/ubiquitous errors that can arise after most operations.
- /// This method should be called before any reading operation.
- /// If this function succeeds, then we are guaranteed to be in a valid state.
- /// Other member functions should check for errors and ThrowError() also
- /// if an error occurs that is specific to it even while in a valid state.
- void CheckErrors() {
- // Check if any crazy thing has happened recently
- if ((cur_elem_ > length_) || // Bad index
- (cur_byte_ > num_bytes_) || // No more bytes
- (cur_byte_ + cur_elem_length_ > num_bytes_) || // Item too large
- (cur_byte_ == num_bytes_ && cur_elem_ != length_) || // Too many items
- (cur_elem_ == length_ && cur_byte_ != num_bytes_)) { // Too many bytes
- ThrowError("Corrupt data.");
- }
- }
-
- /// Will throw an exception based on the passed-in message.
- /// This function is guaranteed to STOP THE CONTROL-FLOW.
- /// (i.e.: you do not have to call "return" after calling ThrowError)
- void ThrowError(const char* const msg = NULL) {
- // TODO: For now we ignore the msg parameter. This can be expanded later.
- throw RedisListException();
- }
-
- private:
- const char* const data_; // A pointer to the data (the first byte)
- const uint32_t num_bytes_; // The number of bytes in this list
-
- uint32_t cur_byte_; // The current byte being read
- uint32_t cur_elem_; // The current element being read
- uint32_t cur_elem_length_; // The number of bytes in current element
-
- uint32_t length_; // The number of elements in this list
- std::vector<char> result_; // The output data
-};
-
-} // namespace rocksdb
+++ /dev/null
-/**
- * A (persistent) Redis API built using the rocksdb backend.
- * Implements Redis Lists as described on: http://redis.io/commands#list
- *
- * @throws All functions may throw a RedisListException on error/corruption.
- *
- * @notes Internally, the set of lists is stored in a rocksdb database,
- * mapping keys to values. Each "value" is the list itself, storing
- * some kind of internal representation of the data. All the
- * representation details are handled by the RedisListIterator class.
- * The present file should be oblivious to the representation details,
- * handling only the client (Redis) API, and the calls to rocksdb.
- *
- * @TODO Presently, all operations take at least O(NV) time where
- * N is the number of elements in the list, and V is the average
- * number of bytes per value in the list. So maybe, with merge operator
- * we can improve this to an optimal O(V) amortized time, since we
- * wouldn't have to read and re-write the entire list.
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#include "redis_lists.h"
-
-#include <iostream>
-#include <memory>
-#include <cmath>
-
-#include "rocksdb/slice.h"
-#include "util/coding.h"
-
-namespace rocksdb
-{
-
-/// Constructors
-
-RedisLists::RedisLists(const std::string& db_path,
- Options options, bool destructive)
- : put_option_(),
- get_option_() {
-
- // Store the name of the database
- db_name_ = db_path;
-
- // If destructive, destroy the DB before re-opening it.
- if (destructive) {
- DestroyDB(db_name_, Options());
- }
-
- // Now open and deal with the db
- DB* db;
- Status s = DB::Open(options, db_name_, &db);
- if (!s.ok()) {
- std::cerr << "ERROR " << s.ToString() << std::endl;
- assert(false);
- }
-
- db_ = std::unique_ptr<DB>(db);
-}
-
-
-/// Accessors
-
-// Number of elements in the list associated with key
-// : throws RedisListException
-int RedisLists::Length(const std::string& key) {
- // Extract the string data representing the list.
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Return the length
- RedisListIterator it(data);
- return it.Length();
-}
-
-// Get the element at the specified index in the (list: key)
-// Returns <empty> ("") on out-of-bounds
-// : throws RedisListException
-bool RedisLists::Index(const std::string& key, int32_t index,
- std::string* result) {
- // Extract the string data representing the list.
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Handle REDIS negative indices (from the end); fast iff Length() takes O(1)
- if (index < 0) {
- index = Length(key) - (-index); //replace (-i) with (N-i).
- }
-
- // Iterate through the list until the desired index is found.
- int curIndex = 0;
- RedisListIterator it(data);
- while(curIndex < index && !it.Done()) {
- ++curIndex;
- it.Skip();
- }
-
- // If we actually found the index
- if (curIndex == index && !it.Done()) {
- Slice elem;
- it.GetCurrent(&elem);
- if (result != NULL) {
- *result = elem.ToString();
- }
-
- return true;
- } else {
- return false;
- }
-}
-
-// Return a truncated version of the list.
-// First, negative values for first/last are interpreted as "end of list".
-// So, if first == -1, then it is re-set to index: (Length(key) - 1)
-// Then, return exactly those indices i such that first <= i <= last.
-// : throws RedisListException
-std::vector<std::string> RedisLists::Range(const std::string& key,
- int32_t first, int32_t last) {
- // Extract the string data representing the list.
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Handle negative bounds (-1 means last element, etc.)
- int listLen = Length(key);
- if (first < 0) {
- first = listLen - (-first); // Replace (-x) with (N-x)
- }
- if (last < 0) {
- last = listLen - (-last);
- }
-
- // Verify bounds (and truncate the range so that it is valid)
- first = std::max(first, 0);
- last = std::min(last, listLen-1);
- int len = std::max(last-first+1, 0);
-
- // Initialize the resulting list
- std::vector<std::string> result(len);
-
- // Traverse the list and update the vector
- int curIdx = 0;
- Slice elem;
- for (RedisListIterator it(data); !it.Done() && curIdx<=last; it.Skip()) {
- if (first <= curIdx && curIdx <= last) {
- it.GetCurrent(&elem);
- result[curIdx-first].assign(elem.data(),elem.size());
- }
-
- ++curIdx;
- }
-
- // Return the result. Might be empty
- return result;
-}
-
-// Print the (list: key) out to stdout. For debugging mostly. Public for now.
-void RedisLists::Print(const std::string& key) {
- // Extract the string data representing the list.
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Iterate through the list and print the items
- Slice elem;
- for (RedisListIterator it(data); !it.Done(); it.Skip()) {
- it.GetCurrent(&elem);
- std::cout << "ITEM " << elem.ToString() << std::endl;
- }
-
- //Now print the byte data
- RedisListIterator it(data);
- std::cout << "==Printing data==" << std::endl;
- std::cout << data.size() << std::endl;
- std::cout << it.Size() << " " << it.Length() << std::endl;
- Slice result = it.WriteResult();
- std::cout << result.data() << std::endl;
- if (true) {
- std::cout << "size: " << result.size() << std::endl;
- const char* val = result.data();
- for(int i=0; i<(int)result.size(); ++i) {
- std::cout << (int)val[i] << " " << (val[i]>=32?val[i]:' ') << std::endl;
- }
- std::cout << std::endl;
- }
-}
-
-/// Insert/Update Functions
-/// Note: The "real" insert function is private. See below.
-
-// InsertBefore and InsertAfter are simply wrappers around the Insert function.
-int RedisLists::InsertBefore(const std::string& key, const std::string& pivot,
- const std::string& value) {
- return Insert(key, pivot, value, false);
-}
-
-int RedisLists::InsertAfter(const std::string& key, const std::string& pivot,
- const std::string& value) {
- return Insert(key, pivot, value, true);
-}
-
-// Prepend value onto beginning of (list: key)
-// : throws RedisListException
-int RedisLists::PushLeft(const std::string& key, const std::string& value) {
- // Get the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Construct the result
- RedisListIterator it(data);
- it.Reserve(it.Size() + it.SizeOf(value));
- it.InsertElement(value);
-
- // Push the data back to the db and return the length
- db_->Put(put_option_, key, it.WriteResult());
- return it.Length();
-}
-
-// Append value onto end of (list: key)
-// TODO: Make this O(1) time. Might require MergeOperator.
-// : throws RedisListException
-int RedisLists::PushRight(const std::string& key, const std::string& value) {
- // Get the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Create an iterator to the data and seek to the end.
- RedisListIterator it(data);
- it.Reserve(it.Size() + it.SizeOf(value));
- while (!it.Done()) {
- it.Push(); // Write each element as we go
- }
-
- // Insert the new element at the current position (the end)
- it.InsertElement(value);
-
- // Push it back to the db, and return length
- db_->Put(put_option_, key, it.WriteResult());
- return it.Length();
-}
-
-// Set (list: key)[idx] = val. Return true on success, false on fail.
-// : throws RedisListException
-bool RedisLists::Set(const std::string& key, int32_t index,
- const std::string& value) {
- // Get the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Handle negative index for REDIS (meaning -index from end of list)
- if (index < 0) {
- index = Length(key) - (-index);
- }
-
- // Iterate through the list until we find the element we want
- int curIndex = 0;
- RedisListIterator it(data);
- it.Reserve(it.Size() + it.SizeOf(value)); // Over-estimate is fine
- while(curIndex < index && !it.Done()) {
- it.Push();
- ++curIndex;
- }
-
- // If not found, return false (this occurs when index was invalid)
- if (it.Done() || curIndex != index) {
- return false;
- }
-
- // Write the new element value, and drop the previous element value
- it.InsertElement(value);
- it.Skip();
-
- // Write the data to the database
- // Check status, since it needs to return true/false guarantee
- Status s = db_->Put(put_option_, key, it.WriteResult());
-
- // Success
- return s.ok();
-}
-
-/// Delete / Remove / Pop functions
-
-// Trim (list: key) so that it will only contain the indices from start..stop
-// Invalid indices will not generate an error, just empty,
-// or the portion of the list that fits in this interval
-// : throws RedisListException
-bool RedisLists::Trim(const std::string& key, int32_t start, int32_t stop) {
- // Get the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Handle negative indices in REDIS
- int listLen = Length(key);
- if (start < 0) {
- start = listLen - (-start);
- }
- if (stop < 0) {
- stop = listLen - (-stop);
- }
-
- // Truncate bounds to only fit in the list
- start = std::max(start, 0);
- stop = std::min(stop, listLen-1);
-
- // Construct an iterator for the list. Drop all undesired elements.
- int curIndex = 0;
- RedisListIterator it(data);
- it.Reserve(it.Size()); // Over-estimate
- while(!it.Done()) {
- // If not within the range, just skip the item (drop it).
- // Otherwise, continue as usual.
- if (start <= curIndex && curIndex <= stop) {
- it.Push();
- } else {
- it.Skip();
- }
-
- // Increment the current index
- ++curIndex;
- }
-
- // Write the (possibly empty) result to the database
- Status s = db_->Put(put_option_, key, it.WriteResult());
-
- // Return true as long as the write succeeded
- return s.ok();
-}
-
-// Return and remove the first element in the list (or "" if empty)
-// : throws RedisListException
-bool RedisLists::PopLeft(const std::string& key, std::string* result) {
- // Get the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Point to first element in the list (if it exists), and get its value/size
- RedisListIterator it(data);
- if (it.Length() > 0) { // Proceed only if list is non-empty
- Slice elem;
- it.GetCurrent(&elem); // Store the value of the first element
- it.Reserve(it.Size() - it.SizeOf(elem));
- it.Skip(); // DROP the first item and move to next
-
- // Update the db
- db_->Put(put_option_, key, it.WriteResult());
-
- // Return the value
- if (result != NULL) {
- *result = elem.ToString();
- }
- return true;
- } else {
- return false;
- }
-}
-
-// Remove and return the last element in the list (or "" if empty)
-// TODO: Make this O(1). Might require MergeOperator.
-// : throws RedisListException
-bool RedisLists::PopRight(const std::string& key, std::string* result) {
- // Extract the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Construct an iterator to the data and move to last element
- RedisListIterator it(data);
- it.Reserve(it.Size());
- int len = it.Length();
- int curIndex = 0;
- while(curIndex < (len-1) && !it.Done()) {
- it.Push();
- ++curIndex;
- }
-
- // Extract and drop/skip the last element
- if (curIndex == len-1) {
- assert(!it.Done()); // Sanity check. Should not have ended here.
-
- // Extract and pop the element
- Slice elem;
- it.GetCurrent(&elem); // Save value of element.
- it.Skip(); // Skip the element
-
- // Write the result to the database
- db_->Put(put_option_, key, it.WriteResult());
-
- // Return the value
- if (result != NULL) {
- *result = elem.ToString();
- }
- return true;
- } else {
- // Must have been an empty list
- assert(it.Done() && len==0 && curIndex == 0);
- return false;
- }
-}
-
-// Remove the (first or last) "num" occurrences of value in (list: key)
-// : throws RedisListException
-int RedisLists::Remove(const std::string& key, int32_t num,
- const std::string& value) {
- // Negative num ==> RemoveLast; Positive num ==> Remove First
- if (num < 0) {
- return RemoveLast(key, -num, value);
- } else if (num > 0) {
- return RemoveFirst(key, num, value);
- } else {
- return RemoveFirst(key, Length(key), value);
- }
-}
-
-// Remove the first "num" occurrences of value in (list: key).
-// : throws RedisListException
-int RedisLists::RemoveFirst(const std::string& key, int32_t num,
- const std::string& value) {
- // Ensure that the number is positive
- assert(num >= 0);
-
- // Extract the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Traverse the list, appending all but the desired occurrences of value
- int numSkipped = 0; // Keep track of the number of times value is seen
- Slice elem;
- RedisListIterator it(data);
- it.Reserve(it.Size());
- while (!it.Done()) {
- it.GetCurrent(&elem);
-
- if (elem == value && numSkipped < num) {
- // Drop this item if desired
- it.Skip();
- ++numSkipped;
- } else {
- // Otherwise keep the item and proceed as normal
- it.Push();
- }
- }
-
- // Put the result back to the database
- db_->Put(put_option_, key, it.WriteResult());
-
- // Return the number of elements removed
- return numSkipped;
-}
-
-
-// Remove the last "num" occurrences of value in (list: key).
-// TODO: I traverse the list 2x. Make faster. Might require MergeOperator.
-// : throws RedisListException
-int RedisLists::RemoveLast(const std::string& key, int32_t num,
- const std::string& value) {
- // Ensure that the number is positive
- assert(num >= 0);
-
- // Extract the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Temporary variable to hold the "current element" in the blocks below
- Slice elem;
-
- // Count the total number of occurrences of value
- int totalOccs = 0;
- for (RedisListIterator it(data); !it.Done(); it.Skip()) {
- it.GetCurrent(&elem);
- if (elem == value) {
- ++totalOccs;
- }
- }
-
- // Construct an iterator to the data. Reserve enough space for the result.
- RedisListIterator it(data);
- int bytesRemoved = std::min(num,totalOccs)*it.SizeOf(value);
- it.Reserve(it.Size() - bytesRemoved);
-
- // Traverse the list, appending all but the desired occurrences of value.
- // Note: "Drop the last k occurrences" is equivalent to
- // "keep only the first n-k occurrences", where n is total occurrences.
- int numKept = 0; // Keep track of the number of times value is kept
- while(!it.Done()) {
- it.GetCurrent(&elem);
-
- // If we are within the deletion range and equal to value, drop it.
- // Otherwise, append/keep/push it.
- if (elem == value) {
- if (numKept < totalOccs - num) {
- it.Push();
- ++numKept;
- } else {
- it.Skip();
- }
- } else {
- // Always append the others
- it.Push();
- }
- }
-
- // Put the result back to the database
- db_->Put(put_option_, key, it.WriteResult());
-
- // Return the number of elements removed
- return totalOccs - numKept;
-}
-
-/// Private functions
-
-// Insert element value into (list: key), right before/after
-// the first occurrence of pivot
-// : throws RedisListException
-int RedisLists::Insert(const std::string& key, const std::string& pivot,
- const std::string& value, bool insert_after) {
- // Get the original list data
- std::string data;
- db_->Get(get_option_, key, &data);
-
- // Construct an iterator to the data and reserve enough space for result.
- RedisListIterator it(data);
- it.Reserve(it.Size() + it.SizeOf(value));
-
- // Iterate through the list until we find the element we want
- Slice elem;
- bool found = false;
- while(!it.Done() && !found) {
- it.GetCurrent(&elem);
-
- // When we find the element, insert the element and mark found
- if (elem == pivot) { // Found it!
- found = true;
- if (insert_after == true) { // Skip one more, if inserting after it
- it.Push();
- }
- it.InsertElement(value);
- } else {
- it.Push();
- }
-
- }
-
- // Put the data (string) into the database
- if (found) {
- db_->Put(put_option_, key, it.WriteResult());
- }
-
- // Returns the new (possibly unchanged) length of the list
- return it.Length();
-}
-
-
-}
+++ /dev/null
-/**
- * A (persistent) Redis API built using the rocksdb backend.
- * Implements Redis Lists as described on: http://redis.io/commands#list
- *
- * @throws All functions may throw a RedisListException
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-#pragma once
-
-#include <string>
-#include "rocksdb/db.h"
-#include "redis_list_iterator.h"
-#include "redis_list_exception.h"
-
-namespace rocksdb {
-
-/// The Redis functionality (see http://redis.io/commands#list)
-/// All functions may THROW a RedisListException
-class RedisLists {
- public: // Constructors / Destructors
- /// Construct a new RedisLists database, with name/path of db.
- /// Will clear the database on open iff destructive is true (default false).
- /// Otherwise, it will restore saved changes.
- /// May throw RedisListException
- RedisLists(const std::string& db_path,
- Options options, bool destructive = false);
-
- public: // Accessors
- /// The number of items in (list: key)
- int Length(const std::string& key);
-
- /// Search the list for the (index)'th item (0-based) in (list:key)
- /// A negative index indicates: "from end-of-list"
- /// If index is within range: return true, and return the value in *result.
- /// If (index < -length OR index>=length), then index is out of range:
- /// return false (and *result is left unchanged)
- /// May throw RedisListException
- bool Index(const std::string& key, int32_t index,
- std::string* result);
-
- /// Return (list: key)[first..last] (inclusive)
- /// May throw RedisListException
- std::vector<std::string> Range(const std::string& key,
- int32_t first, int32_t last);
-
- /// Prints the entire (list: key), for debugging.
- void Print(const std::string& key);
-
- public: // Insert/Update
- /// Insert value before/after pivot in (list: key). Return the length.
- /// May throw RedisListException
- int InsertBefore(const std::string& key, const std::string& pivot,
- const std::string& value);
- int InsertAfter(const std::string& key, const std::string& pivot,
- const std::string& value);
-
- /// Push / Insert value at beginning/end of the list. Return the length.
- /// May throw RedisListException
- int PushLeft(const std::string& key, const std::string& value);
- int PushRight(const std::string& key, const std::string& value);
-
- /// Set (list: key)[idx] = val. Return true on success, false on fail
- /// May throw RedisListException
- bool Set(const std::string& key, int32_t index, const std::string& value);
-
- public: // Delete / Remove / Pop / Trim
- /// Trim (list: key) so that it will only contain the indices from start..stop
- /// Returns true on success
- /// May throw RedisListException
- bool Trim(const std::string& key, int32_t start, int32_t stop);
-
- /// If list is empty, return false and leave *result unchanged.
- /// Else, remove the first/last elem, store it in *result, and return true
- bool PopLeft(const std::string& key, std::string* result); // First
- bool PopRight(const std::string& key, std::string* result); // Last
-
- /// Remove the first (or last) num occurrences of value from the list (key)
- /// Return the number of elements removed.
- /// May throw RedisListException
- int Remove(const std::string& key, int32_t num,
- const std::string& value);
- int RemoveFirst(const std::string& key, int32_t num,
- const std::string& value);
- int RemoveLast(const std::string& key, int32_t num,
- const std::string& value);
-
- private: // Private Functions
- /// Calls InsertBefore or InsertAfter
- int Insert(const std::string& key, const std::string& pivot,
- const std::string& value, bool insert_after);
- private:
- std::string db_name_; // The actual database name/path
- WriteOptions put_option_;
- ReadOptions get_option_;
-
- /// The backend rocksdb database.
- /// Map : key --> list
- /// where a list is a sequence of elements
- /// and an element is a 4-byte integer (n), followed by n bytes of data
- std::unique_ptr<DB> db_;
-};
-
-} // namespace rocksdb
+++ /dev/null
-/**
- * A test harness for the Redis API built on rocksdb.
- *
- * USAGE: Build with: "make redis_test" (in rocksdb directory).
- * Run unit tests with: "./redis_test"
- * Manual/Interactive user testing: "./redis_test -m"
- * Manual user testing + restart database: "./redis_test -m -d"
- *
- * TODO: Add LARGE random test cases to verify efficiency and scalability
- *
- * @author Deon Nicholas (dnicholas@fb.com)
- * Copyright 2013 Facebook
- */
-
-
-#include <iostream>
-#include <cctype>
-
-#include "redis_lists.h"
-#include "util/testharness.h"
-#include "util/random.h"
-
-using namespace rocksdb;
-using namespace std;
-
-namespace rocksdb {
-
-class RedisListsTest {
- public:
- static const string kDefaultDbName;
- static Options options;
-
- RedisListsTest() {
- options.create_if_missing = true;
- }
-};
-
-const string RedisListsTest::kDefaultDbName = "/tmp/redisdefaultdb/";
-Options RedisListsTest::options = Options();
-
-// operator== and operator<< are defined below for vectors (lists)
-// Needed for ASSERT_EQ
-
-void AssertListEq(const std::vector<std::string>& result,
- const std::vector<std::string>& expected_result) {
- ASSERT_EQ(result.size(), expected_result.size());
- for (size_t i = 0; i < result.size(); ++i) {
- ASSERT_EQ(result[i], expected_result[i]);
- }
-}
-
-// PushRight, Length, Index, Range
-TEST(RedisListsTest, SimpleTest) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Simple PushRight (should return the new length each time)
- ASSERT_EQ(redis.PushRight("k1", "v1"), 1);
- ASSERT_EQ(redis.PushRight("k1", "v2"), 2);
- ASSERT_EQ(redis.PushRight("k1", "v3"), 3);
-
- // Check Length and Index() functions
- ASSERT_EQ(redis.Length("k1"), 3); // Check length
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "v1"); // Check valid indices
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "v2");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "v3");
-
- // Check range function and vectors
- std::vector<std::string> result = redis.Range("k1", 0, 2); // Get the list
- std::vector<std::string> expected_result(3);
- expected_result[0] = "v1";
- expected_result[1] = "v2";
- expected_result[2] = "v3";
- AssertListEq(result, expected_result);
-}
-
-// PushLeft, Length, Index, Range
-TEST(RedisListsTest, SimpleTest2) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Simple PushRight
- ASSERT_EQ(redis.PushLeft("k1", "v3"), 1);
- ASSERT_EQ(redis.PushLeft("k1", "v2"), 2);
- ASSERT_EQ(redis.PushLeft("k1", "v1"), 3);
-
- // Check Length and Index() functions
- ASSERT_EQ(redis.Length("k1"), 3); // Check length
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "v1"); // Check valid indices
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "v2");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "v3");
-
- // Check range function and vectors
- std::vector<std::string> result = redis.Range("k1", 0, 2); // Get the list
- std::vector<std::string> expected_result(3);
- expected_result[0] = "v1";
- expected_result[1] = "v2";
- expected_result[2] = "v3";
- AssertListEq(result, expected_result);
-}
-
-// Exhaustive test of the Index() function
-TEST(RedisListsTest, IndexTest) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Empty Index check (return empty and should not crash or edit tempv)
- tempv = "yo";
- ASSERT_TRUE(!redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "yo");
- ASSERT_TRUE(!redis.Index("fda", 3, &tempv));
- ASSERT_EQ(tempv, "yo");
- ASSERT_TRUE(!redis.Index("random", -12391, &tempv));
- ASSERT_EQ(tempv, "yo");
-
- // Simple Pushes (will yield: [v6, v4, v4, v1, v2, v3]
- redis.PushRight("k1", "v1");
- redis.PushRight("k1", "v2");
- redis.PushRight("k1", "v3");
- redis.PushLeft("k1", "v4");
- redis.PushLeft("k1", "v4");
- redis.PushLeft("k1", "v6");
-
- // Simple, non-negative indices
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "v6");
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "v4");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "v4");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "v1");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "v2");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "v3");
-
- // Negative indices
- ASSERT_TRUE(redis.Index("k1", -6, &tempv));
- ASSERT_EQ(tempv, "v6");
- ASSERT_TRUE(redis.Index("k1", -5, &tempv));
- ASSERT_EQ(tempv, "v4");
- ASSERT_TRUE(redis.Index("k1", -4, &tempv));
- ASSERT_EQ(tempv, "v4");
- ASSERT_TRUE(redis.Index("k1", -3, &tempv));
- ASSERT_EQ(tempv, "v1");
- ASSERT_TRUE(redis.Index("k1", -2, &tempv));
- ASSERT_EQ(tempv, "v2");
- ASSERT_TRUE(redis.Index("k1", -1, &tempv));
- ASSERT_EQ(tempv, "v3");
-
- // Out of bounds (return empty, no crash)
- ASSERT_TRUE(!redis.Index("k1", 6, &tempv));
- ASSERT_TRUE(!redis.Index("k1", 123219, &tempv));
- ASSERT_TRUE(!redis.Index("k1", -7, &tempv));
- ASSERT_TRUE(!redis.Index("k1", -129, &tempv));
-}
-
-
-// Exhaustive test of the Range() function
-TEST(RedisListsTest, RangeTest) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Simple Pushes (will yield: [v6, v4, v4, v1, v2, v3])
- redis.PushRight("k1", "v1");
- redis.PushRight("k1", "v2");
- redis.PushRight("k1", "v3");
- redis.PushLeft("k1", "v4");
- redis.PushLeft("k1", "v4");
- redis.PushLeft("k1", "v6");
-
- // Sanity check (check the length; make sure it's 6)
- ASSERT_EQ(redis.Length("k1"), 6);
-
- // Simple range
- std::vector<std::string> res = redis.Range("k1", 1, 4);
- ASSERT_EQ((int)res.size(), 4);
- ASSERT_EQ(res[0], "v4");
- ASSERT_EQ(res[1], "v4");
- ASSERT_EQ(res[2], "v1");
- ASSERT_EQ(res[3], "v2");
-
- // Negative indices (i.e.: measured from the end)
- res = redis.Range("k1", 2, -1);
- ASSERT_EQ((int)res.size(), 4);
- ASSERT_EQ(res[0], "v4");
- ASSERT_EQ(res[1], "v1");
- ASSERT_EQ(res[2], "v2");
- ASSERT_EQ(res[3], "v3");
-
- res = redis.Range("k1", -6, -4);
- ASSERT_EQ((int)res.size(), 3);
- ASSERT_EQ(res[0], "v6");
- ASSERT_EQ(res[1], "v4");
- ASSERT_EQ(res[2], "v4");
-
- res = redis.Range("k1", -1, 5);
- ASSERT_EQ((int)res.size(), 1);
- ASSERT_EQ(res[0], "v3");
-
- // Partial / Broken indices
- res = redis.Range("k1", -3, 1000000);
- ASSERT_EQ((int)res.size(), 3);
- ASSERT_EQ(res[0], "v1");
- ASSERT_EQ(res[1], "v2");
- ASSERT_EQ(res[2], "v3");
-
- res = redis.Range("k1", -1000000, 1);
- ASSERT_EQ((int)res.size(), 2);
- ASSERT_EQ(res[0], "v6");
- ASSERT_EQ(res[1], "v4");
-
- // Invalid indices
- res = redis.Range("k1", 7, 9);
- ASSERT_EQ((int)res.size(), 0);
-
- res = redis.Range("k1", -8, -7);
- ASSERT_EQ((int)res.size(), 0);
-
- res = redis.Range("k1", 3, 2);
- ASSERT_EQ((int)res.size(), 0);
-
- res = redis.Range("k1", 5, -2);
- ASSERT_EQ((int)res.size(), 0);
-
- // Range matches Index
- res = redis.Range("k1", -6, -4);
- ASSERT_TRUE(redis.Index("k1", -6, &tempv));
- ASSERT_EQ(tempv, res[0]);
- ASSERT_TRUE(redis.Index("k1", -5, &tempv));
- ASSERT_EQ(tempv, res[1]);
- ASSERT_TRUE(redis.Index("k1", -4, &tempv));
- ASSERT_EQ(tempv, res[2]);
-
- // Last check
- res = redis.Range("k1", 0, -6);
- ASSERT_EQ((int)res.size(), 1);
- ASSERT_EQ(res[0], "v6");
-}
-
-// Exhaustive test for InsertBefore(), and InsertAfter()
-TEST(RedisListsTest, InsertTest) {
- RedisLists redis(kDefaultDbName, options, true);
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Insert on empty list (return 0, and do not crash)
- ASSERT_EQ(redis.InsertBefore("k1", "non-exist", "a"), 0);
- ASSERT_EQ(redis.InsertAfter("k1", "other-non-exist", "c"), 0);
- ASSERT_EQ(redis.Length("k1"), 0);
-
- // Push some preliminary stuff [g, f, e, d, c, b, a]
- redis.PushLeft("k1", "a");
- redis.PushLeft("k1", "b");
- redis.PushLeft("k1", "c");
- redis.PushLeft("k1", "d");
- redis.PushLeft("k1", "e");
- redis.PushLeft("k1", "f");
- redis.PushLeft("k1", "g");
- ASSERT_EQ(redis.Length("k1"), 7);
-
- // Test InsertBefore
- int newLength = redis.InsertBefore("k1", "e", "hello");
- ASSERT_EQ(newLength, 8);
- ASSERT_EQ(redis.Length("k1"), newLength);
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "f");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "e");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "hello");
-
- // Test InsertAfter
- newLength = redis.InsertAfter("k1", "c", "bye");
- ASSERT_EQ(newLength, 9);
- ASSERT_EQ(redis.Length("k1"), newLength);
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "bye");
-
- // Test bad value on InsertBefore
- newLength = redis.InsertBefore("k1", "yo", "x");
- ASSERT_EQ(newLength, 9);
- ASSERT_EQ(redis.Length("k1"), newLength);
-
- // Test bad value on InsertAfter
- newLength = redis.InsertAfter("k1", "xxxx", "y");
- ASSERT_EQ(newLength, 9);
- ASSERT_EQ(redis.Length("k1"), newLength);
-
- // Test InsertBefore beginning
- newLength = redis.InsertBefore("k1", "g", "begggggggggggggggg");
- ASSERT_EQ(newLength, 10);
- ASSERT_EQ(redis.Length("k1"), newLength);
-
- // Test InsertAfter end
- newLength = redis.InsertAfter("k1", "a", "enddd");
- ASSERT_EQ(newLength, 11);
- ASSERT_EQ(redis.Length("k1"), newLength);
-
- // Make sure nothing weird happened.
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "begggggggggggggggg");
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "g");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "f");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "hello");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "e");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "d");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "c");
- ASSERT_TRUE(redis.Index("k1", 7, &tempv));
- ASSERT_EQ(tempv, "bye");
- ASSERT_TRUE(redis.Index("k1", 8, &tempv));
- ASSERT_EQ(tempv, "b");
- ASSERT_TRUE(redis.Index("k1", 9, &tempv));
- ASSERT_EQ(tempv, "a");
- ASSERT_TRUE(redis.Index("k1", 10, &tempv));
- ASSERT_EQ(tempv, "enddd");
-}
-
-// Exhaustive test of Set function
-TEST(RedisListsTest, SetTest) {
- RedisLists redis(kDefaultDbName, options, true);
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Set on empty list (return false, and do not crash)
- ASSERT_EQ(redis.Set("k1", 7, "a"), false);
- ASSERT_EQ(redis.Set("k1", 0, "a"), false);
- ASSERT_EQ(redis.Set("k1", -49, "cx"), false);
- ASSERT_EQ(redis.Length("k1"), 0);
-
- // Push some preliminary stuff [g, f, e, d, c, b, a]
- redis.PushLeft("k1", "a");
- redis.PushLeft("k1", "b");
- redis.PushLeft("k1", "c");
- redis.PushLeft("k1", "d");
- redis.PushLeft("k1", "e");
- redis.PushLeft("k1", "f");
- redis.PushLeft("k1", "g");
- ASSERT_EQ(redis.Length("k1"), 7);
-
- // Test Regular Set
- ASSERT_TRUE(redis.Set("k1", 0, "0"));
- ASSERT_TRUE(redis.Set("k1", 3, "3"));
- ASSERT_TRUE(redis.Set("k1", 6, "6"));
- ASSERT_TRUE(redis.Set("k1", 2, "2"));
- ASSERT_TRUE(redis.Set("k1", 5, "5"));
- ASSERT_TRUE(redis.Set("k1", 1, "1"));
- ASSERT_TRUE(redis.Set("k1", 4, "4"));
-
- ASSERT_EQ(redis.Length("k1"), 7); // Size should not change
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "0");
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "1");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "2");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "3");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "4");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "5");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "6");
-
- // Set with negative indices
- ASSERT_TRUE(redis.Set("k1", -7, "a"));
- ASSERT_TRUE(redis.Set("k1", -4, "d"));
- ASSERT_TRUE(redis.Set("k1", -1, "g"));
- ASSERT_TRUE(redis.Set("k1", -5, "c"));
- ASSERT_TRUE(redis.Set("k1", -2, "f"));
- ASSERT_TRUE(redis.Set("k1", -6, "b"));
- ASSERT_TRUE(redis.Set("k1", -3, "e"));
-
- ASSERT_EQ(redis.Length("k1"), 7); // Size should not change
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "a");
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "b");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "c");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "d");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "e");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "f");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "g");
-
- // Bad indices (just out-of-bounds / off-by-one check)
- ASSERT_EQ(redis.Set("k1", -8, "off-by-one in negative index"), false);
- ASSERT_EQ(redis.Set("k1", 7, "off-by-one-error in positive index"), false);
- ASSERT_EQ(redis.Set("k1", 43892, "big random index should fail"), false);
- ASSERT_EQ(redis.Set("k1", -21391, "large negative index should fail"), false);
-
- // One last check (to make sure nothing weird happened)
- ASSERT_EQ(redis.Length("k1"), 7); // Size should not change
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "a");
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "b");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "c");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "d");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "e");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "f");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "g");
-}
-
-// Testing Insert, Push, and Set, in a mixed environment
-TEST(RedisListsTest, InsertPushSetTest) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // A series of pushes and insertions
- // Will result in [newbegin, z, a, aftera, x, newend]
- // Also, check the return value sometimes (should return length)
- int lengthCheck;
- lengthCheck = redis.PushLeft("k1", "a");
- ASSERT_EQ(lengthCheck, 1);
- redis.PushLeft("k1", "z");
- redis.PushRight("k1", "x");
- lengthCheck = redis.InsertAfter("k1", "a", "aftera");
- ASSERT_EQ(lengthCheck , 4);
- redis.InsertBefore("k1", "z", "newbegin"); // InsertBefore beginning of list
- redis.InsertAfter("k1", "x", "newend"); // InsertAfter end of list
-
- // Check
- std::vector<std::string> res = redis.Range("k1", 0, -1); // Get the list
- ASSERT_EQ((int)res.size(), 6);
- ASSERT_EQ(res[0], "newbegin");
- ASSERT_EQ(res[5], "newend");
- ASSERT_EQ(res[3], "aftera");
-
- // Testing duplicate values/pivots (multiple occurrences of 'a')
- ASSERT_TRUE(redis.Set("k1", 0, "a")); // [a, z, a, aftera, x, newend]
- redis.InsertAfter("k1", "a", "happy"); // [a, happy, z, a, aftera, ...]
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "happy");
- redis.InsertBefore("k1", "a", "sad"); // [sad, a, happy, z, a, aftera, ...]
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "sad");
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "happy");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "aftera");
- redis.InsertAfter("k1", "a", "zz"); // [sad, a, zz, happy, z, a, aftera, ...]
- ASSERT_TRUE(redis.Index("k1", 2, &tempv));
- ASSERT_EQ(tempv, "zz");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "aftera");
- ASSERT_TRUE(redis.Set("k1", 1, "nota")); // [sad, nota, zz, happy, z, a, ...]
- redis.InsertBefore("k1", "a", "ba"); // [sad, nota, zz, happy, z, ba, a, ...]
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "z");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "ba");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "a");
-
- // We currently have: [sad, nota, zz, happy, z, ba, a, aftera, x, newend]
- // redis.Print("k1"); // manually check
-
- // Test Inserting before/after non-existent values
- lengthCheck = redis.Length("k1"); // Ensure that the length doesnt change
- ASSERT_EQ(lengthCheck, 10);
- ASSERT_EQ(redis.InsertBefore("k1", "non-exist", "randval"), lengthCheck);
- ASSERT_EQ(redis.InsertAfter("k1", "nothing", "a"), lengthCheck);
- ASSERT_EQ(redis.InsertAfter("randKey", "randVal", "ranValue"), 0); // Empty
- ASSERT_EQ(redis.Length("k1"), lengthCheck); // The length should not change
-
- // Simply Test the Set() function
- redis.Set("k1", 5, "ba2");
- redis.InsertBefore("k1", "ba2", "beforeba2");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "z");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "beforeba2");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "ba2");
- ASSERT_TRUE(redis.Index("k1", 7, &tempv));
- ASSERT_EQ(tempv, "a");
-
- // We have: [sad, nota, zz, happy, z, beforeba2, ba2, a, aftera, x, newend]
-
- // Set() with negative indices
- redis.Set("k1", -1, "endprank");
- ASSERT_TRUE(!redis.Index("k1", 11, &tempv));
- ASSERT_TRUE(redis.Index("k1", 10, &tempv));
- ASSERT_EQ(tempv, "endprank"); // Ensure Set worked correctly
- redis.Set("k1", -11, "t");
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "t");
-
- // Test out of bounds Set
- ASSERT_EQ(redis.Set("k1", -12, "ssd"), false);
- ASSERT_EQ(redis.Set("k1", 11, "sasd"), false);
- ASSERT_EQ(redis.Set("k1", 1200, "big"), false);
-}
-
-// Testing Trim, Pop
-TEST(RedisListsTest, TrimPopTest) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // A series of pushes and insertions
- // Will result in [newbegin, z, a, aftera, x, newend]
- redis.PushLeft("k1", "a");
- redis.PushLeft("k1", "z");
- redis.PushRight("k1", "x");
- redis.InsertBefore("k1", "z", "newbegin"); // InsertBefore start of list
- redis.InsertAfter("k1", "x", "newend"); // InsertAfter end of list
- redis.InsertAfter("k1", "a", "aftera");
-
- // Simple PopLeft/Right test
- ASSERT_TRUE(redis.PopLeft("k1", &tempv));
- ASSERT_EQ(tempv, "newbegin");
- ASSERT_EQ(redis.Length("k1"), 5);
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "z");
- ASSERT_TRUE(redis.PopRight("k1", &tempv));
- ASSERT_EQ(tempv, "newend");
- ASSERT_EQ(redis.Length("k1"), 4);
- ASSERT_TRUE(redis.Index("k1", -1, &tempv));
- ASSERT_EQ(tempv, "x");
-
- // Now have: [z, a, aftera, x]
-
- // Test Trim
- ASSERT_TRUE(redis.Trim("k1", 0, -1)); // [z, a, aftera, x] (do nothing)
- ASSERT_EQ(redis.Length("k1"), 4);
- ASSERT_TRUE(redis.Trim("k1", 0, 2)); // [z, a, aftera]
- ASSERT_EQ(redis.Length("k1"), 3);
- ASSERT_TRUE(redis.Index("k1", -1, &tempv));
- ASSERT_EQ(tempv, "aftera");
- ASSERT_TRUE(redis.Trim("k1", 1, 1)); // [a]
- ASSERT_EQ(redis.Length("k1"), 1);
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "a");
-
- // Test out of bounds (empty) trim
- ASSERT_TRUE(redis.Trim("k1", 1, 0));
- ASSERT_EQ(redis.Length("k1"), 0);
-
- // Popping with empty list (return empty without error)
- ASSERT_TRUE(!redis.PopLeft("k1", &tempv));
- ASSERT_TRUE(!redis.PopRight("k1", &tempv));
- ASSERT_TRUE(redis.Trim("k1", 0, 5));
-
- // Exhaustive Trim test (negative and invalid indices)
- // Will start in [newbegin, z, a, aftera, x, newend]
- redis.PushLeft("k1", "a");
- redis.PushLeft("k1", "z");
- redis.PushRight("k1", "x");
- redis.InsertBefore("k1", "z", "newbegin"); // InsertBefore start of list
- redis.InsertAfter("k1", "x", "newend"); // InsertAfter end of list
- redis.InsertAfter("k1", "a", "aftera");
- ASSERT_TRUE(redis.Trim("k1", -6, -1)); // Should do nothing
- ASSERT_EQ(redis.Length("k1"), 6);
- ASSERT_TRUE(redis.Trim("k1", 1, -2));
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "z");
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "x");
- ASSERT_EQ(redis.Length("k1"), 4);
- ASSERT_TRUE(redis.Trim("k1", -3, -2));
- ASSERT_EQ(redis.Length("k1"), 2);
-}
-
-// Testing Remove, RemoveFirst, RemoveLast
-TEST(RedisListsTest, RemoveTest) {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // A series of pushes and insertions
- // Will result in [newbegin, z, a, aftera, x, newend, a, a]
- redis.PushLeft("k1", "a");
- redis.PushLeft("k1", "z");
- redis.PushRight("k1", "x");
- redis.InsertBefore("k1", "z", "newbegin"); // InsertBefore start of list
- redis.InsertAfter("k1", "x", "newend"); // InsertAfter end of list
- redis.InsertAfter("k1", "a", "aftera");
- redis.PushRight("k1", "a");
- redis.PushRight("k1", "a");
-
- // Verify
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "newbegin");
- ASSERT_TRUE(redis.Index("k1", -1, &tempv));
- ASSERT_EQ(tempv, "a");
-
- // Check RemoveFirst (Remove the first two 'a')
- // Results in [newbegin, z, aftera, x, newend, a]
- int numRemoved = redis.Remove("k1", 2, "a");
- ASSERT_EQ(numRemoved, 2);
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "newbegin");
- ASSERT_TRUE(redis.Index("k1", 1, &tempv));
- ASSERT_EQ(tempv, "z");
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "newend");
- ASSERT_TRUE(redis.Index("k1", 5, &tempv));
- ASSERT_EQ(tempv, "a");
- ASSERT_EQ(redis.Length("k1"), 6);
-
- // Repopulate some stuff
- // Results in: [x, x, x, x, x, newbegin, z, x, aftera, x, newend, a, x]
- redis.PushLeft("k1", "x");
- redis.PushLeft("k1", "x");
- redis.PushLeft("k1", "x");
- redis.PushLeft("k1", "x");
- redis.PushLeft("k1", "x");
- redis.PushRight("k1", "x");
- redis.InsertAfter("k1", "z", "x");
-
- // Test removal from end
- numRemoved = redis.Remove("k1", -2, "x");
- ASSERT_EQ(numRemoved, 2);
- ASSERT_TRUE(redis.Index("k1", 8, &tempv));
- ASSERT_EQ(tempv, "aftera");
- ASSERT_TRUE(redis.Index("k1", 9, &tempv));
- ASSERT_EQ(tempv, "newend");
- ASSERT_TRUE(redis.Index("k1", 10, &tempv));
- ASSERT_EQ(tempv, "a");
- ASSERT_TRUE(!redis.Index("k1", 11, &tempv));
- numRemoved = redis.Remove("k1", -2, "x");
- ASSERT_EQ(numRemoved, 2);
- ASSERT_TRUE(redis.Index("k1", 4, &tempv));
- ASSERT_EQ(tempv, "newbegin");
- ASSERT_TRUE(redis.Index("k1", 6, &tempv));
- ASSERT_EQ(tempv, "aftera");
-
- // We now have: [x, x, x, x, newbegin, z, aftera, newend, a]
- ASSERT_EQ(redis.Length("k1"), 9);
- ASSERT_TRUE(redis.Index("k1", -1, &tempv));
- ASSERT_EQ(tempv, "a");
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "x");
-
- // Test over-shooting (removing more than there exists)
- numRemoved = redis.Remove("k1", -9000, "x");
- ASSERT_EQ(numRemoved , 4); // Only really removed 4
- ASSERT_EQ(redis.Length("k1"), 5);
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "newbegin");
- numRemoved = redis.Remove("k1", 1, "x");
- ASSERT_EQ(numRemoved, 0);
-
- // Try removing ALL!
- numRemoved = redis.Remove("k1", 0, "newbegin"); // REMOVE 0 will remove all!
- ASSERT_EQ(numRemoved, 1);
-
- // Removal from an empty-list
- ASSERT_TRUE(redis.Trim("k1", 1, 0));
- numRemoved = redis.Remove("k1", 1, "z");
- ASSERT_EQ(numRemoved, 0);
-}
-
-
-// Test Multiple keys and Persistence
-TEST(RedisListsTest, PersistenceMultiKeyTest) {
-
- string tempv; // Used below for all Index(), PopRight(), PopLeft()
-
- // Block one: populate a single key in the database
- {
- RedisLists redis(kDefaultDbName, options, true); // Destructive
-
- // A series of pushes and insertions
- // Will result in [newbegin, z, a, aftera, x, newend, a, a]
- redis.PushLeft("k1", "a");
- redis.PushLeft("k1", "z");
- redis.PushRight("k1", "x");
- redis.InsertBefore("k1", "z", "newbegin"); // InsertBefore start of list
- redis.InsertAfter("k1", "x", "newend"); // InsertAfter end of list
- redis.InsertAfter("k1", "a", "aftera");
- redis.PushRight("k1", "a");
- redis.PushRight("k1", "a");
-
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "aftera");
- }
-
- // Block two: make sure changes were saved and add some other key
- {
- RedisLists redis(kDefaultDbName, options, false); // Persistent, non-destructive
-
- // Check
- ASSERT_EQ(redis.Length("k1"), 8);
- ASSERT_TRUE(redis.Index("k1", 3, &tempv));
- ASSERT_EQ(tempv, "aftera");
-
- redis.PushRight("k2", "randomkey");
- redis.PushLeft("k2", "sas");
-
- redis.PopLeft("k1", &tempv);
- }
-
- // Block three: Verify the changes from block 2
- {
- RedisLists redis(kDefaultDbName, options, false); // Presistent, non-destructive
-
- // Check
- ASSERT_EQ(redis.Length("k1"), 7);
- ASSERT_EQ(redis.Length("k2"), 2);
- ASSERT_TRUE(redis.Index("k1", 0, &tempv));
- ASSERT_EQ(tempv, "z");
- ASSERT_TRUE(redis.Index("k2", -2, &tempv));
- ASSERT_EQ(tempv, "sas");
- }
-}
-
-/// THE manual REDIS TEST begins here
-/// THIS WILL ONLY OCCUR IF YOU RUN: ./redis_test -m
-
-void MakeUpper(std::string* const s) {
- int len = s->length();
- for(int i=0; i<len; ++i) {
- (*s)[i] = toupper((*s)[i]); // C-version defined in <ctype.h>
- }
-}
-
-/// Allows the user to enter in REDIS commands into the command-line.
-/// This is useful for manual / interacticve testing / debugging.
-/// Use destructive=true to clean the database before use.
-/// Use destructive=false to remember the previous state (i.e.: persistent)
-/// Should be called from main function.
-int manual_redis_test(bool destructive){
- RedisLists redis(RedisListsTest::kDefaultDbName,
- RedisListsTest::options,
- destructive);
-
- // TODO: Right now, please use spaces to separate each word.
- // In actual redis, you can use quotes to specify compound values
- // Example: RPUSH mylist "this is a compound value"
-
- std::string command;
- while(true) {
- cin >> command;
- MakeUpper(&command);
-
- if (command == "LINSERT") {
- std::string k, t, p, v;
- cin >> k >> t >> p >> v;
- MakeUpper(&t);
- if (t=="BEFORE") {
- std::cout << redis.InsertBefore(k, p, v) << std::endl;
- } else if (t=="AFTER") {
- std::cout << redis.InsertAfter(k, p, v) << std::endl;
- }
- } else if (command == "LPUSH") {
- std::string k, v;
- std::cin >> k >> v;
- redis.PushLeft(k, v);
- } else if (command == "RPUSH") {
- std::string k, v;
- std::cin >> k >> v;
- redis.PushRight(k, v);
- } else if (command == "LPOP") {
- std::string k;
- std::cin >> k;
- string res;
- redis.PopLeft(k, &res);
- std::cout << res << std::endl;
- } else if (command == "RPOP") {
- std::string k;
- std::cin >> k;
- string res;
- redis.PopRight(k, &res);
- std::cout << res << std::endl;
- } else if (command == "LREM") {
- std::string k;
- int amt;
- std::string v;
-
- std::cin >> k >> amt >> v;
- std::cout << redis.Remove(k, amt, v) << std::endl;
- } else if (command == "LLEN") {
- std::string k;
- std::cin >> k;
- std::cout << redis.Length(k) << std::endl;
- } else if (command == "LRANGE") {
- std::string k;
- int i, j;
- std::cin >> k >> i >> j;
- std::vector<std::string> res = redis.Range(k, i, j);
- for (auto it = res.begin(); it != res.end(); ++it) {
- std::cout << " " << (*it);
- }
- std::cout << std::endl;
- } else if (command == "LTRIM") {
- std::string k;
- int i, j;
- std::cin >> k >> i >> j;
- redis.Trim(k, i, j);
- } else if (command == "LSET") {
- std::string k;
- int idx;
- std::string v;
- cin >> k >> idx >> v;
- redis.Set(k, idx, v);
- } else if (command == "LINDEX") {
- std::string k;
- int idx;
- std::cin >> k >> idx;
- string res;
- redis.Index(k, idx, &res);
- std::cout << res << std::endl;
- } else if (command == "PRINT") { // Added by Deon
- std::string k;
- cin >> k;
- redis.Print(k);
- } else if (command == "QUIT") {
- return 0;
- } else {
- std::cout << "unknown command: " << command << std::endl;
- }
- }
-}
-
-} // namespace rocksdb
-
-
-// USAGE: "./redis_test" for default (unit tests)
-// "./redis_test -m" for manual testing (redis command api)
-// "./redis_test -m -d" for destructive manual test (erase db before use)
-
-
-// Check for "want" argument in the argument list
-bool found_arg(int argc, char* argv[], const char* want){
- for(int i=1; i<argc; ++i){
- if (strcmp(argv[i], want) == 0) {
- return true;
- }
- }
- return false;
-}
-
-// Will run unit tests.
-// However, if -m is specified, it will do user manual/interactive testing
-// -m -d is manual and destructive (will clear the database before use)
-int main(int argc, char* argv[]) {
- if (found_arg(argc, argv, "-m")) {
- bool destructive = found_arg(argc, argv, "-d");
- return rocksdb::manual_redis_test(destructive);
- } else {
- return rocksdb::test::RunAllTests();
- }
-}
-
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "utilities/ttl/db_ttl.h"
-#include "db/filename.h"
-#include "util/coding.h"
-#include "include/rocksdb/env.h"
-#include "include/rocksdb/iterator.h"
-
-namespace rocksdb {
-
-// Open the db inside DBWithTTL because options needs pointer to its ttl
-DBWithTTL::DBWithTTL(const int32_t ttl,
- const Options& options,
- const std::string& dbname,
- Status& st,
- bool read_only)
- : StackableDB(nullptr) {
- Options options_to_open = options;
-
- if (options.compaction_filter) {
- ttl_comp_filter_.reset(
- new TtlCompactionFilter(ttl, options.compaction_filter));
- options_to_open.compaction_filter = ttl_comp_filter_.get();
- } else {
- options_to_open.compaction_filter_factory =
- std::shared_ptr<CompactionFilterFactory>(
- new TtlCompactionFilterFactory(
- ttl, options.compaction_filter_factory));
- }
-
- if (options.merge_operator) {
- options_to_open.merge_operator.reset(
- new TtlMergeOperator(options.merge_operator));
- }
-
- if (read_only) {
- st = DB::OpenForReadOnly(options_to_open, dbname, &db_);
- } else {
- st = DB::Open(options_to_open, dbname, &db_);
- }
-}
-
-DBWithTTL::~DBWithTTL() {
- delete db_;
-}
-
-Status UtilityDB::OpenTtlDB(
- const Options& options,
- const std::string& dbname,
- StackableDB** dbptr,
- int32_t ttl,
- bool read_only) {
- Status st;
- *dbptr = new DBWithTTL(ttl, options, dbname, st, read_only);
- if (!st.ok()) {
- delete *dbptr;
- }
- return st;
-}
-
-// Gives back the current time
-Status DBWithTTL::GetCurrentTime(int32_t& curtime) {
- return Env::Default()->GetCurrentTime((int64_t*)&curtime);
-}
-
-// Appends the current timestamp to the string.
-// Returns false if could not get the current_time, true if append succeeds
-Status DBWithTTL::AppendTS(const Slice& val, std::string& val_with_ts) {
- val_with_ts.reserve(kTSLength + val.size());
- char ts_string[kTSLength];
- int32_t curtime;
- Status st = GetCurrentTime(curtime);
- if (!st.ok()) {
- return st;
- }
- EncodeFixed32(ts_string, curtime);
- val_with_ts.append(val.data(), val.size());
- val_with_ts.append(ts_string, kTSLength);
- return st;
-}
-
-// Returns corruption if the length of the string is lesser than timestamp, or
-// timestamp refers to a time lesser than ttl-feature release time
-Status DBWithTTL::SanityCheckTimestamp(const Slice& str) {
- if (str.size() < kTSLength) {
- return Status::Corruption("Error: value's length less than timestamp's\n");
- }
- // Checks that TS is not lesser than kMinTimestamp
- // Gaurds against corruption & normal database opened incorrectly in ttl mode
- int32_t timestamp_value =
- DecodeFixed32(str.data() + str.size() - kTSLength);
- if (timestamp_value < kMinTimestamp){
- return Status::Corruption("Error: Timestamp < ttl feature release time!\n");
- }
- return Status::OK();
-}
-
-// Checks if the string is stale or not according to TTl provided
-bool DBWithTTL::IsStale(const Slice& value, int32_t ttl) {
- if (ttl <= 0) { // Data is fresh if TTL is non-positive
- return false;
- }
- int32_t curtime;
- if (!GetCurrentTime(curtime).ok()) {
- return false; // Treat the data as fresh if could not get current time
- }
- int32_t timestamp_value =
- DecodeFixed32(value.data() + value.size() - kTSLength);
- return (timestamp_value + ttl) < curtime;
-}
-
-// Strips the TS from the end of the string
-Status DBWithTTL::StripTS(std::string* str) {
- Status st;
- if (str->length() < kTSLength) {
- return Status::Corruption("Bad timestamp in key-value");
- }
- // Erasing characters which hold the TS
- str->erase(str->length() - kTSLength, kTSLength);
- return st;
-}
-
-Status DBWithTTL::Put(
- const WriteOptions& opt,
- const Slice& key,
- const Slice& val) {
- WriteBatch batch;
- batch.Put(key, val);
- return Write(opt, &batch);
-}
-
-Status DBWithTTL::Get(const ReadOptions& options,
- const Slice& key,
- std::string* value) {
- Status st = db_->Get(options, key, value);
- if (!st.ok()) {
- return st;
- }
- st = SanityCheckTimestamp(*value);
- if (!st.ok()) {
- return st;
- }
- return StripTS(value);
-}
-
-std::vector<Status> DBWithTTL::MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values) {
- return std::vector<Status>(keys.size(),
- Status::NotSupported("MultiGet not\
- supported with TTL"));
-}
-
-bool DBWithTTL::KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found) {
- bool ret = db_->KeyMayExist(options, key, value, value_found);
- if (ret && value != nullptr && value_found != nullptr && *value_found) {
- if (!SanityCheckTimestamp(*value).ok() || !StripTS(value).ok()) {
- return false;
- }
- }
- return ret;
-}
-
-Status DBWithTTL::Delete(const WriteOptions& wopts, const Slice& key) {
- return db_->Delete(wopts, key);
-}
-
-Status DBWithTTL::Merge(const WriteOptions& opt,
- const Slice& key,
- const Slice& value) {
- WriteBatch batch;
- batch.Merge(key, value);
- return Write(opt, &batch);
-}
-
-Status DBWithTTL::Write(const WriteOptions& opts, WriteBatch* updates) {
- class Handler : public WriteBatch::Handler {
- public:
- WriteBatch updates_ttl;
- Status batch_rewrite_status;
- virtual void Put(const Slice& key, const Slice& value) {
- std::string value_with_ts;
- Status st = AppendTS(value, value_with_ts);
- if (!st.ok()) {
- batch_rewrite_status = st;
- } else {
- updates_ttl.Put(key, value_with_ts);
- }
- }
- virtual void Merge(const Slice& key, const Slice& value) {
- std::string value_with_ts;
- Status st = AppendTS(value, value_with_ts);
- if (!st.ok()) {
- batch_rewrite_status = st;
- } else {
- updates_ttl.Merge(key, value_with_ts);
- }
- }
- virtual void Delete(const Slice& key) {
- updates_ttl.Delete(key);
- }
- virtual void LogData(const Slice& blob) {
- updates_ttl.PutLogData(blob);
- }
- };
- Handler handler;
- updates->Iterate(&handler);
- if (!handler.batch_rewrite_status.ok()) {
- return handler.batch_rewrite_status;
- } else {
- return db_->Write(opts, &(handler.updates_ttl));
- }
-}
-
-Iterator* DBWithTTL::NewIterator(const ReadOptions& opts) {
- return new TtlIterator(db_->NewIterator(opts));
-}
-
-const Snapshot* DBWithTTL::GetSnapshot() {
- return db_->GetSnapshot();
-}
-
-void DBWithTTL::ReleaseSnapshot(const Snapshot* snapshot) {
- db_->ReleaseSnapshot(snapshot);
-}
-
-bool DBWithTTL::GetProperty(const Slice& property, std::string* value) {
- return db_->GetProperty(property, value);
-}
-
-void DBWithTTL::GetApproximateSizes(const Range* r, int n, uint64_t* sizes) {
- db_->GetApproximateSizes(r, n, sizes);
-}
-
-void DBWithTTL::CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level, int target_level) {
- db_->CompactRange(begin, end, reduce_level, target_level);
-}
-
-int DBWithTTL::NumberLevels() {
- return db_->NumberLevels();
-}
-
-int DBWithTTL::MaxMemCompactionLevel() {
- return db_->MaxMemCompactionLevel();
-}
-
-int DBWithTTL::Level0StopWriteTrigger() {
- return db_->Level0StopWriteTrigger();
-}
-
-Status DBWithTTL::Flush(const FlushOptions& fopts) {
- return db_->Flush(fopts);
-}
-
-Status DBWithTTL::DisableFileDeletions() {
- return db_->DisableFileDeletions();
-}
-
-Status DBWithTTL::EnableFileDeletions() {
- return db_->EnableFileDeletions();
-}
-
-Status DBWithTTL::GetLiveFiles(std::vector<std::string>& vec, uint64_t* mfs,
- bool flush_memtable) {
- return db_->GetLiveFiles(vec, mfs, flush_memtable);
-}
-
-SequenceNumber DBWithTTL::GetLatestSequenceNumber() const {
- return db_->GetLatestSequenceNumber();
-}
-
-Status DBWithTTL::GetSortedWalFiles(VectorLogPtr& files) {
- return db_->GetSortedWalFiles(files);
-}
-
-Status DBWithTTL::DeleteFile(std::string name) {
- return db_->DeleteFile(name);
-}
-
-Status DBWithTTL::GetUpdatesSince(
- SequenceNumber seq_number,
- unique_ptr<TransactionLogIterator>* iter) {
- return db_->GetUpdatesSince(seq_number, iter);
-}
-
-void DBWithTTL::TEST_Destroy_DBWithTtl() {
- ((DBImpl*) db_)->TEST_Destroy_DBImpl();
-}
-
-} // namespace rocksdb
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/merge_operator.h"
-#include "utilities/utility_db.h"
-#include "db/db_impl.h"
-
-namespace rocksdb {
-
-class DBWithTTL : public StackableDB {
- public:
- DBWithTTL(const int32_t ttl,
- const Options& options,
- const std::string& dbname,
- Status& st,
- bool read_only);
-
- virtual ~DBWithTTL();
-
- virtual Status Put(const WriteOptions& o,
- const Slice& key,
- const Slice& val);
-
- virtual Status Get(const ReadOptions& options,
- const Slice& key,
- std::string* value);
-
- virtual std::vector<Status> MultiGet(const ReadOptions& options,
- const std::vector<Slice>& keys,
- std::vector<std::string>* values);
-
- virtual bool KeyMayExist(const ReadOptions& options,
- const Slice& key,
- std::string* value,
- bool* value_found = nullptr) override;
-
- virtual Status Delete(const WriteOptions& wopts, const Slice& key);
-
- virtual Status Merge(const WriteOptions& options,
- const Slice& key,
- const Slice& value);
-
-
- virtual Status Write(const WriteOptions& opts, WriteBatch* updates);
-
- virtual Iterator* NewIterator(const ReadOptions& opts);
-
- virtual const Snapshot* GetSnapshot();
-
- virtual void ReleaseSnapshot(const Snapshot* snapshot);
-
- virtual bool GetProperty(const Slice& property, std::string* value);
-
- virtual void GetApproximateSizes(const Range* r, int n, uint64_t* sizes);
-
- virtual void CompactRange(const Slice* begin, const Slice* end,
- bool reduce_level = false, int target_level = -1);
-
- virtual int NumberLevels();
-
- virtual int MaxMemCompactionLevel();
-
- virtual int Level0StopWriteTrigger();
-
- virtual Status Flush(const FlushOptions& fopts);
-
- virtual Status DisableFileDeletions();
-
- virtual Status EnableFileDeletions();
-
- virtual Status GetLiveFiles(std::vector<std::string>& vec, uint64_t* mfs,
- bool flush_memtable = true);
-
- virtual Status GetSortedWalFiles(VectorLogPtr& files);
-
- virtual Status DeleteFile(std::string name);
-
- virtual SequenceNumber GetLatestSequenceNumber() const;
-
- virtual Status GetUpdatesSince(SequenceNumber seq_number,
- unique_ptr<TransactionLogIterator>* iter);
-
- // Simulate a db crash, no elegant closing of database.
- void TEST_Destroy_DBWithTtl();
-
- virtual DB* GetRawDB() {
- return db_;
- }
-
- static bool IsStale(const Slice& value, int32_t ttl);
-
- static Status AppendTS(const Slice& val, std::string& val_with_ts);
-
- static Status SanityCheckTimestamp(const Slice& str);
-
- static Status StripTS(std::string* str);
-
- static Status GetCurrentTime(int32_t& curtime);
-
- static const uint32_t kTSLength = sizeof(int32_t); // size of timestamp
-
- static const int32_t kMinTimestamp = 1368146402; // 05/09/2013:5:40PM GMT-8
-
- static const int32_t kMaxTimestamp = 2147483647; // 01/18/2038:7:14PM GMT-8
-
- private:
- DB* db_;
- unique_ptr<CompactionFilter> ttl_comp_filter_;
-};
-
-class TtlIterator : public Iterator {
-
- public:
- explicit TtlIterator(Iterator* iter)
- : iter_(iter) {
- assert(iter_);
- }
-
- ~TtlIterator() {
- delete iter_;
- }
-
- bool Valid() const {
- return iter_->Valid();
- }
-
- void SeekToFirst() {
- iter_->SeekToFirst();
- }
-
- void SeekToLast() {
- iter_->SeekToLast();
- }
-
- void Seek(const Slice& target) {
- iter_->Seek(target);
- }
-
- void Next() {
- iter_->Next();
- }
-
- void Prev() {
- iter_->Prev();
- }
-
- Slice key() const {
- return iter_->key();
- }
-
- int32_t timestamp() const {
- return DecodeFixed32(
- iter_->value().data() + iter_->value().size() - DBWithTTL::kTSLength);
- }
-
- Slice value() const {
- //TODO: handle timestamp corruption like in general iterator semantics
- assert(DBWithTTL::SanityCheckTimestamp(iter_->value()).ok());
- Slice trimmed_value = iter_->value();
- trimmed_value.size_ -= DBWithTTL::kTSLength;
- return trimmed_value;
- }
-
- Status status() const {
- return iter_->status();
- }
-
- private:
- Iterator* iter_;
-};
-
-class TtlCompactionFilter : public CompactionFilter {
-
- public:
- TtlCompactionFilter(
- int32_t ttl,
- const CompactionFilter* user_comp_filter,
- std::unique_ptr<const CompactionFilter>
- user_comp_filter_from_factory = nullptr)
- : ttl_(ttl),
- user_comp_filter_(user_comp_filter),
- user_comp_filter_from_factory_(std::move(user_comp_filter_from_factory)) {
- // Unlike the merge operator, compaction filter is necessary for TTL, hence
- // this would be called even if user doesn't specify any compaction-filter
- if (!user_comp_filter_) {
- user_comp_filter_ = user_comp_filter_from_factory_.get();
- }
- }
-
- virtual bool Filter(int level,
- const Slice& key,
- const Slice& old_val,
- std::string* new_val,
- bool* value_changed) const override {
- if (DBWithTTL::IsStale(old_val, ttl_)) {
- return true;
- }
- if (user_comp_filter_ == nullptr) {
- return false;
- }
- assert(old_val.size() >= DBWithTTL::kTSLength);
- Slice old_val_without_ts(old_val.data(),
- old_val.size() - DBWithTTL::kTSLength);
- if (user_comp_filter_->Filter(level, key, old_val_without_ts, new_val,
- value_changed)) {
- return true;
- }
- if (*value_changed) {
- new_val->append(old_val.data() + old_val.size() - DBWithTTL::kTSLength,
- DBWithTTL::kTSLength);
- }
- return false;
- }
-
- virtual const char* Name() const override {
- return "Delete By TTL";
- }
-
- private:
- int32_t ttl_;
- const CompactionFilter* user_comp_filter_;
- std::unique_ptr<const CompactionFilter> user_comp_filter_from_factory_;
-};
-
-class TtlCompactionFilterFactory : public CompactionFilterFactory {
- public:
- TtlCompactionFilterFactory(
- int32_t ttl,
- std::shared_ptr<CompactionFilterFactory> comp_filter_factory)
- : ttl_(ttl),
- user_comp_filter_factory_(comp_filter_factory) { }
-
- virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
- const CompactionFilter::Context& context) {
- return std::unique_ptr<TtlCompactionFilter>(
- new TtlCompactionFilter(
- ttl_,
- nullptr,
- std::move(user_comp_filter_factory_->CreateCompactionFilter(context))
- )
- );
- }
-
- virtual const char* Name() const override {
- return "TtlCompactionFilterFactory";
- }
-
- private:
- int32_t ttl_;
- std::shared_ptr<CompactionFilterFactory> user_comp_filter_factory_;
-};
-
-class TtlMergeOperator : public MergeOperator {
-
- public:
- explicit TtlMergeOperator(const std::shared_ptr<MergeOperator> merge_op)
- : user_merge_op_(merge_op) {
- assert(merge_op);
- }
-
- virtual bool FullMerge(const Slice& key,
- const Slice* existing_value,
- const std::deque<std::string>& operands,
- std::string* new_value,
- Logger* logger) const override {
- const uint32_t ts_len = DBWithTTL::kTSLength;
- if (existing_value && existing_value->size() < ts_len) {
- Log(logger, "Error: Could not remove timestamp from existing value.");
- return false;
- }
-
- // Extract time-stamp from each operand to be passed to user_merge_op_
- std::deque<std::string> operands_without_ts;
- for (const auto &operand : operands) {
- if (operand.size() < ts_len) {
- Log(logger, "Error: Could not remove timestamp from operand value.");
- return false;
- }
- operands_without_ts.push_back(operand.substr(0, operand.size() - ts_len));
- }
-
- // Apply the user merge operator (store result in *new_value)
- bool good = true;
- if (existing_value) {
- Slice existing_value_without_ts(existing_value->data(),
- existing_value->size() - ts_len);
- good = user_merge_op_->FullMerge(key, &existing_value_without_ts,
- operands_without_ts, new_value, logger);
- } else {
- good = user_merge_op_->FullMerge(key, nullptr, operands_without_ts,
- new_value, logger);
- }
-
- // Return false if the user merge operator returned false
- if (!good) {
- return false;
- }
-
- // Augment the *new_value with the ttl time-stamp
- int32_t curtime;
- if (!DBWithTTL::GetCurrentTime(curtime).ok()) {
- Log(logger, "Error: Could not get current time to be attached internally "
- "to the new value.");
- return false;
- } else {
- char ts_string[ts_len];
- EncodeFixed32(ts_string, curtime);
- new_value->append(ts_string, ts_len);
- return true;
- }
- }
-
- virtual bool PartialMerge(const Slice& key,
- const Slice& left_operand,
- const Slice& right_operand,
- std::string* new_value,
- Logger* logger) const override {
- const uint32_t ts_len = DBWithTTL::kTSLength;
-
- if (left_operand.size() < ts_len || right_operand.size() < ts_len) {
- Log(logger, "Error: Could not remove timestamp from value.");
- return false;
- }
-
- // Apply the user partial-merge operator (store result in *new_value)
- assert(new_value);
- Slice left_without_ts(left_operand.data(), left_operand.size() - ts_len);
- Slice right_without_ts(right_operand.data(), right_operand.size() - ts_len);
- if (!user_merge_op_->PartialMerge(key, left_without_ts, right_without_ts,
- new_value, logger)) {
- return false;
- }
-
- // Augment the *new_value with the ttl time-stamp
- int32_t curtime;
- if (!DBWithTTL::GetCurrentTime(curtime).ok()) {
- Log(logger, "Error: Could not get current time to be attached internally "
- "to the new value.");
- return false;
- } else {
- char ts_string[ts_len];
- EncodeFixed32(ts_string, curtime);
- new_value->append(ts_string, ts_len);
- return true;
- }
-
- }
-
- virtual const char* Name() const override {
- return "Merge By TTL";
- }
-
- private:
- std::shared_ptr<MergeOperator> user_merge_op_;
-};
-
-}
+++ /dev/null
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <memory>
-#include "rocksdb/compaction_filter.h"
-#include "utilities/utility_db.h"
-#include "util/testharness.h"
-#include "util/logging.h"
-#include <map>
-#include <unistd.h>
-
-namespace rocksdb {
-
-namespace {
-
-typedef std::map<std::string, std::string> KVMap;
-
-enum BatchOperation {
- PUT = 0,
- DELETE = 1
-};
-
-}
-
-class TtlTest {
- public:
- TtlTest() {
- dbname_ = test::TmpDir() + "/db_ttl";
- options_.create_if_missing = true;
- // ensure that compaction is kicked in to always strip timestamp from kvs
- options_.max_grandparent_overlap_factor = 0;
- // compaction should take place always from level0 for determinism
- options_.max_mem_compaction_level = 0;
- db_ttl_ = nullptr;
- DestroyDB(dbname_, Options());
- }
-
- ~TtlTest() {
- CloseTtl();
- DestroyDB(dbname_, Options());
- }
-
- // Open database with TTL support when TTL not provided with db_ttl_ pointer
- void OpenTtl() {
- assert(db_ttl_ == nullptr); // db should be closed before opening again
- ASSERT_OK(UtilityDB::OpenTtlDB(options_, dbname_, &db_ttl_));
- }
-
- // Open database with TTL support when TTL provided with db_ttl_ pointer
- void OpenTtl(int32_t ttl) {
- assert(db_ttl_ == nullptr);
- ASSERT_OK(UtilityDB::OpenTtlDB(options_, dbname_, &db_ttl_, ttl));
- }
-
- // Open with TestFilter compaction filter
- void OpenTtlWithTestCompaction(int32_t ttl) {
- options_.compaction_filter_factory =
- std::shared_ptr<CompactionFilterFactory>(
- new TestFilterFactory(kSampleSize_, kNewValue_));
- OpenTtl(ttl);
- }
-
- // Open database with TTL support in read_only mode
- void OpenReadOnlyTtl(int32_t ttl) {
- assert(db_ttl_ == nullptr);
- ASSERT_OK(UtilityDB::OpenTtlDB(options_, dbname_, &db_ttl_, ttl, true));
- }
-
- void CloseTtl() {
- delete db_ttl_;
- db_ttl_ = nullptr;
- }
-
- // Populates and returns a kv-map
- void MakeKVMap(int64_t num_entries) {
- kvmap_.clear();
- int digits = 1;
- for (int dummy = num_entries; dummy /= 10 ; ++digits);
- int digits_in_i = 1;
- for (int64_t i = 0; i < num_entries; i++) {
- std::string key = "key";
- std::string value = "value";
- if (i % 10 == 0) {
- digits_in_i++;
- }
- for(int j = digits_in_i; j < digits; j++) {
- key.append("0");
- value.append("0");
- }
- AppendNumberTo(&key, i);
- AppendNumberTo(&value, i);
- kvmap_[key] = value;
- }
- ASSERT_EQ((int)kvmap_.size(), num_entries);//check all insertions done
- }
-
- // Makes a write-batch with key-vals from kvmap_ and 'Write''s it
- void MakePutWriteBatch(const BatchOperation* batch_ops, int num_ops) {
- assert(num_ops <= (int)kvmap_.size());
- static WriteOptions wopts;
- static FlushOptions flush_opts;
- WriteBatch batch;
- kv_it_ = kvmap_.begin();
- for (int i = 0; i < num_ops && kv_it_ != kvmap_.end(); i++, kv_it_++) {
- switch (batch_ops[i]) {
- case PUT:
- batch.Put(kv_it_->first, kv_it_->second);
- break;
- case DELETE:
- batch.Delete(kv_it_->first);
- break;
- default:
- assert(false);
- }
- }
- db_ttl_->Write(wopts, &batch);
- db_ttl_->Flush(flush_opts);
- }
-
- // Puts num_entries starting from start_pos_map from kvmap_ into the database
- void PutValues(int start_pos_map, int num_entries, bool flush = true) {
- assert(db_ttl_);
- ASSERT_LE(start_pos_map + num_entries, (int)kvmap_.size());
- static WriteOptions wopts;
- static FlushOptions flush_opts;
- kv_it_ = kvmap_.begin();
- advance(kv_it_, start_pos_map);
- for (int i = 0; kv_it_ != kvmap_.end() && i < num_entries; i++, kv_it_++) {
- ASSERT_OK(db_ttl_->Put(wopts, kv_it_->first, kv_it_->second));
- }
- // Put a mock kv at the end because CompactionFilter doesn't delete last key
- ASSERT_OK(db_ttl_->Put(wopts, "keymock", "valuemock"));
- if (flush) {
- db_ttl_->Flush(flush_opts);
- }
- }
-
- // Runs a manual compaction
- void ManualCompact() {
- db_ttl_->CompactRange(nullptr, nullptr);
- }
-
- // checks the whole kvmap_ to return correct values using KeyMayExist
- void SimpleKeyMayExistCheck() {
- static ReadOptions ropts;
- bool value_found;
- std::string val;
- for(auto &kv : kvmap_) {
- bool ret = db_ttl_->KeyMayExist(ropts, kv.first, &val, &value_found);
- if (ret == false || value_found == false) {
- fprintf(stderr, "KeyMayExist could not find key=%s in the database but"
- " should have\n", kv.first.c_str());
- assert(false);
- } else if (val.compare(kv.second) != 0) {
- fprintf(stderr, " value for key=%s present in database is %s but"
- " should be %s\n", kv.first.c_str(), val.c_str(),
- kv.second.c_str());
- assert(false);
- }
- }
- }
-
- // Sleeps for slp_tim then runs a manual compaction
- // Checks span starting from st_pos from kvmap_ in the db and
- // Gets should return true if check is true and false otherwise
- // Also checks that value that we got is the same as inserted; and =kNewValue
- // if test_compaction_change is true
- void SleepCompactCheck(int slp_tim, int st_pos, int span, bool check = true,
- bool test_compaction_change = false) {
- assert(db_ttl_);
- sleep(slp_tim);
- ManualCompact();
- static ReadOptions ropts;
- kv_it_ = kvmap_.begin();
- advance(kv_it_, st_pos);
- std::string v;
- for (int i = 0; kv_it_ != kvmap_.end() && i < span; i++, kv_it_++) {
- Status s = db_ttl_->Get(ropts, kv_it_->first, &v);
- if (s.ok() != check) {
- fprintf(stderr, "key=%s ", kv_it_->first.c_str());
- if (!s.ok()) {
- fprintf(stderr, "is absent from db but was expected to be present\n");
- } else {
- fprintf(stderr, "is present in db but was expected to be absent\n");
- }
- assert(false);
- } else if (s.ok()) {
- if (test_compaction_change && v.compare(kNewValue_) != 0) {
- fprintf(stderr, " value for key=%s present in database is %s but "
- " should be %s\n", kv_it_->first.c_str(), v.c_str(),
- kNewValue_.c_str());
- assert(false);
- } else if (!test_compaction_change && v.compare(kv_it_->second) !=0) {
- fprintf(stderr, " value for key=%s present in database is %s but "
- " should be %s\n", kv_it_->first.c_str(), v.c_str(),
- kv_it_->second.c_str());
- assert(false);
- }
- }
- }
- }
-
- // Similar as SleepCompactCheck but uses TtlIterator to read from db
- void SleepCompactCheckIter(int slp, int st_pos, int span, bool check=true) {
- assert(db_ttl_);
- sleep(slp);
- ManualCompact();
- static ReadOptions ropts;
- Iterator *dbiter = db_ttl_->NewIterator(ropts);
- kv_it_ = kvmap_.begin();
- advance(kv_it_, st_pos);
-
- dbiter->Seek(kv_it_->first);
- if (!check) {
- if (dbiter->Valid()) {
- ASSERT_NE(dbiter->value().compare(kv_it_->second), 0);
- }
- } else { // dbiter should have found out kvmap_[st_pos]
- for (int i = st_pos;
- kv_it_ != kvmap_.end() && i < st_pos + span;
- i++, kv_it_++) {
- ASSERT_TRUE(dbiter->Valid());
- ASSERT_EQ(dbiter->value().compare(kv_it_->second), 0);
- dbiter->Next();
- }
- }
- delete dbiter;
- }
-
- class TestFilter : public CompactionFilter {
- public:
- TestFilter(const int64_t kSampleSize, const std::string kNewValue)
- : kSampleSize_(kSampleSize),
- kNewValue_(kNewValue) {
- }
-
- // Works on keys of the form "key<number>"
- // Drops key if number at the end of key is in [0, kSampleSize_/3),
- // Keeps key if it is in [kSampleSize_/3, 2*kSampleSize_/3),
- // Change value if it is in [2*kSampleSize_/3, kSampleSize_)
- // Eg. kSampleSize_=6. Drop:key0-1...Keep:key2-3...Change:key4-5...
- virtual bool Filter(int level, const Slice& key,
- const Slice& value, std::string* new_value,
- bool* value_changed) const override {
- assert(new_value != nullptr);
-
- std::string search_str = "0123456789";
- std::string key_string = key.ToString();
- size_t pos = key_string.find_first_of(search_str);
- int num_key_end;
- if (pos != std::string::npos) {
- num_key_end = stoi(key_string.substr(pos, key.size() - pos));
- } else {
- return false; // Keep keys not matching the format "key<NUMBER>"
- }
-
- int partition = kSampleSize_ / 3;
- if (num_key_end < partition) {
- return true;
- } else if (num_key_end < partition * 2) {
- return false;
- } else {
- *new_value = kNewValue_;
- *value_changed = true;
- return false;
- }
- }
-
- virtual const char* Name() const override {
- return "TestFilter";
- }
-
- private:
- const int64_t kSampleSize_;
- const std::string kNewValue_;
- };
-
- class TestFilterFactory : public CompactionFilterFactory {
- public:
- TestFilterFactory(const int64_t kSampleSize, const std::string kNewValue)
- : kSampleSize_(kSampleSize),
- kNewValue_(kNewValue) {
- }
-
- virtual std::unique_ptr<CompactionFilter>
- CreateCompactionFilter(
- const CompactionFilter::Context& context) override {
- return std::unique_ptr<CompactionFilter>(
- new TestFilter(kSampleSize_, kNewValue_));
- }
-
- virtual const char* Name() const override {
- return "TestFilterFactory";
- }
-
- private:
- const int64_t kSampleSize_;
- const std::string kNewValue_;
- };
-
-
- // Choose carefully so that Put, Gets & Compaction complete in 1 second buffer
- const int64_t kSampleSize_ = 100;
-
- private:
- std::string dbname_;
- StackableDB* db_ttl_;
- Options options_;
- KVMap kvmap_;
- KVMap::iterator kv_it_;
- const std::string kNewValue_ = "new_value";
- unique_ptr<CompactionFilter> test_comp_filter_;
-}; // class TtlTest
-
-// If TTL is non positive or not provided, the behaviour is TTL = infinity
-// This test opens the db 3 times with such default behavior and inserts a
-// bunch of kvs each time. All kvs should accummulate in the db till the end
-// Partitions the sample-size provided into 3 sets over boundary1 and boundary2
-TEST(TtlTest, NoEffect) {
- MakeKVMap(kSampleSize_);
- int boundary1 = kSampleSize_ / 3;
- int boundary2 = 2 * boundary1;
-
- OpenTtl();
- PutValues(0, boundary1); //T=0: Set1 never deleted
- SleepCompactCheck(1, 0, boundary1); //T=1: Set1 still there
- CloseTtl();
-
- OpenTtl(0);
- PutValues(boundary1, boundary2 - boundary1); //T=1: Set2 never deleted
- SleepCompactCheck(1, 0, boundary2); //T=2: Sets1 & 2 still there
- CloseTtl();
-
- OpenTtl(-1);
- PutValues(boundary2, kSampleSize_ - boundary2); //T=3: Set3 never deleted
- SleepCompactCheck(1, 0, kSampleSize_, true); //T=4: Sets 1,2,3 still there
- CloseTtl();
-}
-
-// Puts a set of values and checks its presence using Get during ttl
-TEST(TtlTest, PresentDuringTTL) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(2); // T=0:Open the db with ttl = 2
- PutValues(0, kSampleSize_); // T=0:Insert Set1. Delete at t=2
- SleepCompactCheck(1, 0, kSampleSize_, true); // T=1:Set1 should still be there
- CloseTtl();
-}
-
-// Puts a set of values and checks its absence using Get after ttl
-TEST(TtlTest, AbsentAfterTTL) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(1); // T=0:Open the db with ttl = 2
- PutValues(0, kSampleSize_); // T=0:Insert Set1. Delete at t=2
- SleepCompactCheck(2, 0, kSampleSize_, false); // T=2:Set1 should not be there
- CloseTtl();
-}
-
-// Resets the timestamp of a set of kvs by updating them and checks that they
-// are not deleted according to the old timestamp
-TEST(TtlTest, ResetTimestamp) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(3);
- PutValues(0, kSampleSize_); // T=0: Insert Set1. Delete at t=3
- sleep(2); // T=2
- PutValues(0, kSampleSize_); // T=2: Insert Set1. Delete at t=5
- SleepCompactCheck(2, 0, kSampleSize_); // T=4: Set1 should still be there
- CloseTtl();
-}
-
-// Similar to PresentDuringTTL but uses Iterator
-TEST(TtlTest, IterPresentDuringTTL) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(2);
- PutValues(0, kSampleSize_); // T=0: Insert. Delete at t=2
- SleepCompactCheckIter(1, 0, kSampleSize_); // T=1: Set should be there
- CloseTtl();
-}
-
-// Similar to AbsentAfterTTL but uses Iterator
-TEST(TtlTest, IterAbsentAfterTTL) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(1);
- PutValues(0, kSampleSize_); // T=0: Insert. Delete at t=1
- SleepCompactCheckIter(2, 0, kSampleSize_, false); // T=2: Should not be there
- CloseTtl();
-}
-
-// Checks presence while opening the same db more than once with the same ttl
-// Note: The second open will open the same db
-TEST(TtlTest, MultiOpenSamePresent) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(2);
- PutValues(0, kSampleSize_); // T=0: Insert. Delete at t=2
- CloseTtl();
-
- OpenTtl(2); // T=0. Delete at t=2
- SleepCompactCheck(1, 0, kSampleSize_); // T=1: Set should be there
- CloseTtl();
-}
-
-// Checks absence while opening the same db more than once with the same ttl
-// Note: The second open will open the same db
-TEST(TtlTest, MultiOpenSameAbsent) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(1);
- PutValues(0, kSampleSize_); // T=0: Insert. Delete at t=1
- CloseTtl();
-
- OpenTtl(1); // T=0.Delete at t=1
- SleepCompactCheck(2, 0, kSampleSize_, false); // T=2: Set should not be there
- CloseTtl();
-}
-
-// Checks presence while opening the same db more than once with bigger ttl
-TEST(TtlTest, MultiOpenDifferent) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(1);
- PutValues(0, kSampleSize_); // T=0: Insert. Delete at t=1
- CloseTtl();
-
- OpenTtl(3); // T=0: Set deleted at t=3
- SleepCompactCheck(2, 0, kSampleSize_); // T=2: Set should be there
- CloseTtl();
-}
-
-// Checks presence during ttl in read_only mode
-TEST(TtlTest, ReadOnlyPresentForever) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl(1); // T=0:Open the db normally
- PutValues(0, kSampleSize_); // T=0:Insert Set1. Delete at t=1
- CloseTtl();
-
- OpenReadOnlyTtl(1);
- SleepCompactCheck(2, 0, kSampleSize_); // T=2:Set1 should still be there
- CloseTtl();
-}
-
-// Checks whether WriteBatch works well with TTL
-// Puts all kvs in kvmap_ in a batch and writes first, then deletes first half
-TEST(TtlTest, WriteBatchTest) {
- MakeKVMap(kSampleSize_);
- BatchOperation batch_ops[kSampleSize_];
- for (int i = 0; i < kSampleSize_; i++) {
- batch_ops[i] = PUT;
- }
-
- OpenTtl(2);
- MakePutWriteBatch(batch_ops, kSampleSize_);
- for (int i = 0; i < kSampleSize_ / 2; i++) {
- batch_ops[i] = DELETE;
- }
- MakePutWriteBatch(batch_ops, kSampleSize_ / 2);
- SleepCompactCheck(0, 0, kSampleSize_ / 2, false);
- SleepCompactCheck(0, kSampleSize_ / 2, kSampleSize_ - kSampleSize_ / 2);
- CloseTtl();
-}
-
-// Checks user's compaction filter for correctness with TTL logic
-TEST(TtlTest, CompactionFilter) {
- MakeKVMap(kSampleSize_);
-
- OpenTtlWithTestCompaction(1);
- PutValues(0, kSampleSize_); // T=0:Insert Set1. Delete at t=1
- // T=2: TTL logic takes precedence over TestFilter:-Set1 should not be there
- SleepCompactCheck(2, 0, kSampleSize_, false);
- CloseTtl();
-
- OpenTtlWithTestCompaction(3);
- PutValues(0, kSampleSize_); // T=0:Insert Set1.
- int partition = kSampleSize_ / 3;
- SleepCompactCheck(1, 0, partition, false); // Part dropped
- SleepCompactCheck(0, partition, partition); // Part kept
- SleepCompactCheck(0, 2 * partition, partition, true, true); // Part changed
- CloseTtl();
-}
-
-// Insert some key-values which KeyMayExist should be able to get and check that
-// values returned are fine
-TEST(TtlTest, KeyMayExist) {
- MakeKVMap(kSampleSize_);
-
- OpenTtl();
- PutValues(0, kSampleSize_, false);
-
- SimpleKeyMayExistCheck();
-
- CloseTtl();
-}
-
-} // namespace rocksdb
-
-// A black-box test for the ttl wrapper around rocksdb
-int main(int argc, char** argv) {
- return rocksdb::test::RunAllTests();
-}
projects / rocksdb.git / commitdiff
