1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "remoting/protocol/message_serialization.h" 6 7 #include <stdint.h> 8 9 #include "net/base/io_buffer.h" 10 #include "third_party/webrtc/rtc_base/byte_order.h" 11 12 namespace remoting { 13 namespace protocol { 14 SerializeAndFrameMessage(const google::protobuf::MessageLite & msg)15scoped_refptr<net::IOBufferWithSize> SerializeAndFrameMessage( 16 const google::protobuf::MessageLite& msg) { 17 // Create a buffer with 4 extra bytes. This is used as prefix to write an 18 // int32_t of the serialized message size for framing. 19 const int kExtraBytes = sizeof(int32_t); 20 int size = msg.ByteSize() + kExtraBytes; 21 scoped_refptr<net::IOBufferWithSize> buffer = 22 base::MakeRefCounted<net::IOBufferWithSize>(size); 23 rtc::SetBE32(buffer->data(), msg.GetCachedSize()); 24 msg.SerializeWithCachedSizesToArray( 25 reinterpret_cast<uint8_t*>(buffer->data()) + kExtraBytes); 26 return buffer; 27 } 28 29 } // namespace protocol 30 } // namespace remoting 31