From 5b423b60166cfec5b444bde5301b5a1e44f253ba Mon Sep 17 00:00:00 2001
From: Sage Weil <sage.weil@dreamhost.com>
Date: Sun, 5 Feb 2012 21:21:46 -0800
Subject: [PATCH] kill unused tstring

Signed-off-by: Sage Weil <sage.weil@dreamhost.com>
---
 src/Makefile.am       |   1 -
 src/include/tstring.h | 188 ------------------------------------------
 2 files changed, 189 deletions(-)
 delete mode 100644 src/include/tstring.h

diff --git a/src/Makefile.am b/src/Makefile.am
index dea52589fdb84..a8cdaadfedd61 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1193,7 +1193,6 @@ noinst_HEADERS = \
         include/statlite.h\
 	include/str_list.h\
         include/triple.h\
-        include/tstring.h\
         include/types.h\
         include/utime.h\
         include/dlist.h\
diff --git a/src/include/tstring.h b/src/include/tstring.h
deleted file mode 100644
index 9d3e16b234a62..0000000000000
--- a/src/include/tstring.h
+++ /dev/null
@@ -1,188 +0,0 @@
-#ifndef CEPH_TSTRING_6183F100D51A4EDABFB908CB07D30601
-#define CEPH_TSTRING_6183F100D51A4EDABFB908CB07D30601
-
-#include "common/Mutex.h"
-
-class stringtable {
-private:
-  Mutex lock;
-  struct stringrec {
-    char *data;
-    int len;
-    int ref;
-    stringrec() : data(0), len(0), ref(0) {}
-    ~stringrec() {
-      delete[] data;
-    }
-  };
-  hash_map<const char *, stringrec, hash<const char*>, eqstr> stab;
-
-public:
-  stringtable() : lock("stringtable::lock") {}
-
-  // @s must be null terminated
-  const char *get_cstr(const char *s, int len) {
-    Mutex::Locker l(lock);
-    stringrec &r = stab[s];
-    if (r.ref == 0) {
-      r.len = len;
-      r.data = new char[len+1];
-      memcpy(r.data, s, len);
-      r.data[len] = 0;
-    }
-    r.ref++;
-    //cout << "get_cstr " << &r << " '" << r.data << "' ref " << r.ref << std::endl;
-    return r.data;
-  }
-
-  const char *get_heap_cstr(char *s, int len) {
-    Mutex::Locker l(lock);
-    stringrec &r = stab[s];
-    if (r.ref == 0) {
-      r.len = len;
-      r.data = s;
-    } else
-      delete[] s;
-    r.ref++;
-    //cout << "get_heap_cstr " << &r << " '" << r.data << "' ref " << r.ref << std::endl;
-    return r.data;
-  }
-
-  // @data need not be null-terminated.
-  const char *get_data(const char *data, int len) {
-    Mutex::Locker l(lock);
-    char *t = new char[len+1];
-    memcpy(t, data, len);
-    t[len] = 0;
-    stringrec &r = stab[t];
-    if (r.ref == 0) {
-      r.len = len;
-      r.data = t;
-    } else {
-      delete[] t;
-    }
-    r.ref++;
-    //cout << "get_data " << &r << " '" << r.data << "' ref " << r.ref << std::endl;
-    return r.data;
-  }
-
-  // @s must be null terminated (as with any existing tstring.data)
-  const char *get_existing(const char *s) {
-    Mutex::Locker l(lock);
-    stringrec &r = stab[s];
-    assert(r.ref > 0);
-    r.ref++;
-    //cout << "get_existing " << &r << " '" << r.data << "' ref " << r.ref << std::endl;
-    return r.data;
-  }
-
-  void put(const char *s) {
-    Mutex::Locker l(lock);
-    stringrec &r = stab[s];
-    r.ref--;
-    //cout << "put " << &r << " '" << r.data << "' ref " << r.ref << std::endl;
-    if (r.ref == 0) {
-      if (s == r.data) {
-	// make a copy of the string; otherwise hash_map.erase is unhappy
-	char t[r.len+1];
-	memcpy(t, s, r.len+1);
-	stab.erase(t);
-      } else
-	stab.erase(s);
-    }
-  }
-  
-};
-
-extern stringtable g_stab;
-
-
-class tstring {
-private:
-  const char *_data;
-  int _len;
-  
-public:
-  tstring() : _data(0), _len(0) {}
-  tstring(const char *s) {
-    _len = strlen(s);
-    _data = g_stab.get_cstr(s, _len);
-  }
-  tstring(const string &s) {
-    _len = s.length();
-    _data = g_stab.get_data(s.data(), _len);
-  }
-  tstring(const tstring &s) {
-    _len = s.length();
-    _data = g_stab.get_existing(s.c_str());
-  }
-  ~tstring() {
-    if (_data)
-      g_stab.put(_data);
-  }
-
-  // accessors
-  int length() const { return _len; }
-  bool empty() const { return _len == 0; }
-  const char *c_str() const { return _data; }
-  const char *data() const { return _data; }
-
-  // modifiers
-  const tstring& operator=(const char *s) {
-    if (_data)
-      g_stab.put(_data);
-    _len = strlen(s);
-    _data = g_stab.get_cstr(s, _len);
-    return *this;
-  }
-  const tstring& operator=(const string &s) {
-    if (_data)
-      g_stab.put(_data);
-    _len = s.length();
-    _data = g_stab.get_data(s.data(), _len);
-    return *this;
-  }
-  const tstring& operator=(const tstring &s) {
-    if (_data)
-      g_stab.put(_data);
-    _len = s.length();
-    _data = g_stab.get_existing(s.data());
-    return *this;
-  }
- 
-  void swap(tstring &other) {
-    int tlen = _len;
-    const char *tdata = _data;
-    _len = other._len;
-    _data = other._data;
-    other._len = tlen;
-    other._data = tdata;
-  }
-  void clear() {
-    _len = 0;
-    if (_data) {
-      g_stab.put(_data);
-      _data = 0;
-    }
-  }
-
-  // encoding
-  void encode(bufferlist &bl) const {
-    __u32 l = _len;
-    ::encode(l, bl);
-    bl.append(_data, _len);
-  }
-  void decode(bufferlist::iterator &bl) {
-    clear();
-    __u32 l;
-    ::decode(l, bl);
-    _len = l;
-    char *t = new char[_len+1];
-    bl.copy(_len, t);
-    t[_len] = 0;
-    _data = g_stab.get_heap_cstr(t, _len);
-  }
-};
-WRITE_CLASS_ENCODER(tstring)
-
-#endif
-- 
2.39.5