chromium/remoting/base/compound_buffer.h

// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// CompoundBuffer implements a data buffer that is composed of several pieces,
// each stored in a refcounted IOBuffer. It is needed for encoding/decoding
// video pipeline to represent data packet and minimize data copying.
// It is particularly useful for splitting data between multiple RTP packets
// and assembling them into one buffer on the receiving side.
//
// CompoundBufferInputStream implements ZeroCopyInputStream interface
// to be used by protobuf to decode data stored in CompoundBuffer into
// a protocol buffer message.
//
// Mutations to the buffer are not thread-safe. Immutability can be ensured
// with the Lock() method.

#ifndef REMOTING_BASE_COMPOUND_BUFFER_H_
#define REMOTING_BASE_COMPOUND_BUFFER_H_

#include <stddef.h>
#include <stdint.h>

#include "base/containers/circular_deque.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "google/protobuf/io/zero_copy_stream.h"

namespace net {
class IOBuffer;
class IOBufferWithSize;
}  // namespace net

namespace remoting {

class CompoundBuffer { … };

class CompoundBufferInputStream
    : public google::protobuf::io::ZeroCopyInputStream { … };

}  // namespace remoting

#endif  // REMOTING_BASE_COMPOUND_BUFFER_H_