From: John Spray <john.spray@inktank.com>
Date: Tue, 25 Mar 2014 13:30:31 +0000 (+0000)
Subject: common: Add write_stream(ostream) to bufferlist
X-Git-Tag: v0.82~48^2~48
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=d4a250ca797165bf9c78514a806e67c16788d495;p=ceph.git

common: Add write_stream(ostream) to bufferlist

Enable C++ style file I/O when writing binary output
from bufferlists.

Signed-off-by: John Spray <john.spray@inktank.com>
---

diff --git a/src/common/buffer.cc b/src/common/buffer.cc
index bfafa31f7212..f2b1e0674322 100644
--- a/src/common/buffer.cc
+++ b/src/common/buffer.cc
@@ -1692,6 +1692,20 @@ __u32 buffer::list::crc32c(__u32 crc) const
   return crc;
 }
 
+
+/**
+ * Binary write all contents to a C++ stream
+ */
+void buffer::list::write_stream(std::ostream &out) const
+{
+  for (std::list<ptr>::const_iterator p = _buffers.begin(); p != _buffers.end(); ++p) {
+    if (p->length() > 0) {
+      out.write(p->c_str(), p->length());
+    }
+  }
+}
+
+
 void buffer::list::hexdump(std::ostream &out) const
 {
   std::ios_base::fmtflags original_flags = out.flags();
diff --git a/src/include/buffer.h b/src/include/buffer.h
index 5491105f9487..e5c1b5053584 100644
--- a/src/include/buffer.h
+++ b/src/include/buffer.h
@@ -429,6 +429,7 @@ public:
     void encode_base64(list& o);
     void decode_base64(list& o);
 
+    void write_stream(std::ostream &out) const;
     void hexdump(std::ostream &out) const;
     int read_file(const char *fn, std::string *error);
     ssize_t read_fd(int fd, size_t len);