src/net/quic/congestion_control/tcp_receiver.cc

   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 #include "base/basictypes.h"
   6 #include "net/quic/congestion_control/tcp_receiver.h"
   7
   8 namespace net {
   9
  10 // static
  11 // Originally 64K bytes for TCP, setting it to 256K to support higher bitrates.
  12 const QuicByteCount TcpReceiver::kReceiveWindowTCP = 256000;
  13
  14 TcpReceiver::TcpReceiver()
  15     : accumulated_number_of_recoverd_lost_packets_(0),
  16       receive_window_(kReceiveWindowTCP) {
  17 }
  18
  19 bool TcpReceiver::GenerateCongestionFeedback(
  20     QuicCongestionFeedbackFrame* feedback) {
  21   feedback->type = kTCP;
  22   feedback->tcp.accumulated_number_of_lost_packets =
  23       accumulated_number_of_recoverd_lost_packets_;
  24   feedback->tcp.receive_window = receive_window_;
  25   return true;
  26 }
  27
  28 void TcpReceiver::RecordIncomingPacket(QuicByteCount bytes,
  29                                        QuicPacketSequenceNumber sequence_number,
  30                                        QuicTime timestamp,
  31                                        bool revived) {
  32   if (revived) {
  33     ++accumulated_number_of_recoverd_lost_packets_;
  34   }
  35 }
  36
  37 }  // namespace net