Implement QuicChannel and QuicChannelFactory

remoting/base/compound_buffer.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <functional>
 
 #include "base/logging.h"
 #include "net/base/io_buffer.h"
 #include "remoting/base/compound_buffer.h"
 
@@ skipping 126 matching lines @@
   locked_ = true;
 }
 
 net::IOBufferWithSize* CompoundBuffer::ToIOBufferWithSize() const {
   net::IOBufferWithSize* result = new net::IOBufferWithSize(total_bytes_);
   CopyTo(result->data(), total_bytes_);
   return result;
 }
 
 void CompoundBuffer::CopyTo(char* data, int size) const {
-  char* pos = data;
+  int pos = 0;
   for (DataChunkList::const_iterator it = chunks_.begin();
-       it != chunks_.end(); ++it) {
-    CHECK_LE(pos + it->size, data + size);
-    memcpy(pos, it->start, it->size);
-    pos += it->size;
+       it != chunks_.end() && pos < size; ++it) {
+    int bytes_to_copy = std::min(size - pos, it->size);
+    memcpy(data + pos, it->start, bytes_to_copy);
+    pos += bytes_to_copy;
   }
 }
 
 void CompoundBuffer::CopyFrom(const CompoundBuffer& source,
                               int start, int end) {
   // Check that 0 <= |start| <= |end| <= |total_bytes_|.
   DCHECK_LE(0, start);
   DCHECK_LE(start, end);
   DCHECK_LE(end, source.total_bytes());
 
@@ skipping 105 matching lines @@
   }
 
   return count == 0;
 }
 
 int64 CompoundBufferInputStream::ByteCount() const {
   return position_;
 }
 
 }  // namespace remoting