1// Copyright (c) 2012 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// TCP receiver side congestion algorithm, emulates the behaviour of TCP.
6
7#ifndef NET_QUIC_CONGESTION_CONTROL_TCP_RECEIVER_H_
8#define NET_QUIC_CONGESTION_CONTROL_TCP_RECEIVER_H_
9
10#include "base/basictypes.h"
11#include "base/compiler_specific.h"
12#include "net/base/net_export.h"
13#include "net/quic/congestion_control/receive_algorithm_interface.h"
14#include "net/quic/quic_clock.h"
15#include "net/quic/quic_protocol.h"
16
17namespace net {
18
19class NET_EXPORT_PRIVATE TcpReceiver : public ReceiveAlgorithmInterface {
20 public:
21  TcpReceiver();
22
23  // Size of the (currently fixed) receive window.
24  static const QuicByteCount kReceiveWindowTCP;
25
26  // Start implementation of SendAlgorithmInterface.
27  virtual bool GenerateCongestionFeedback(
28      QuicCongestionFeedbackFrame* feedback) OVERRIDE;
29
30  virtual void RecordIncomingPacket(QuicByteCount bytes,
31                                    QuicPacketSequenceNumber sequence_number,
32                                    QuicTime timestamp) OVERRIDE;
33
34 private:
35  QuicByteCount receive_window_;
36
37  DISALLOW_COPY_AND_ASSIGN(TcpReceiver);
38};
39
40}  // namespace net
41#endif  // NET_QUIC_CONGESTION_CONTROL_TCP_RECEIVER_H_
42