net/quic/congestion_control/send_algorithm_interface.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 "net/quic/congestion_control/send_algorithm_interface.h"
   6
   7 #include "net/quic/congestion_control/tcp_cubic_bytes_sender.h"
   8 #include "net/quic/congestion_control/tcp_cubic_sender.h"
   9 #include "net/quic/quic_flags.h"
  10 #include "net/quic/quic_protocol.h"
  11
  12 namespace net {
  13
  14 class RttStats;
  15
  16 // Factory for send side congestion control algorithm.
  17 SendAlgorithmInterface* SendAlgorithmInterface::Create(
  18     const QuicClock* clock,
  19     const RttStats* rtt_stats,
  20     CongestionControlType congestion_control_type,
  21     QuicConnectionStats* stats,
  22     QuicPacketCount initial_congestion_window) {
  23   const QuicPacketCount max_congestion_window =
  24       (kDefaultSocketReceiveBuffer * kUsableRecieveBufferFraction) /
  25       kDefaultTCPMSS;
  26   switch (congestion_control_type) {
  27     case kCubic:
  28       return new TcpCubicSender(clock, rtt_stats, false /* don't use Reno */,
  29                                 initial_congestion_window,
  30                                 max_congestion_window, stats);
  31     case kCubicBytes:
  32       return new TcpCubicBytesSender(
  33           clock, rtt_stats, false /* don't use Reno */,
  34           initial_congestion_window, max_congestion_window, stats);
  35     case kReno:
  36       return new TcpCubicSender(clock, rtt_stats, true /* use Reno */,
  37                                 initial_congestion_window,
  38                                 max_congestion_window, stats);
  39     case kRenoBytes:
  40       return new TcpCubicBytesSender(clock, rtt_stats, true /* use Reno */,
  41                                      initial_congestion_window,
  42                                      max_congestion_window, stats);
  43     case kBBR:
  44   // TODO(rtenneti): Enable BbrTcpSender.
  45 #if 0
  46       return new BbrTcpSender(clock, rtt_stats, initial_congestion_window,
  47                               max_congestion_window, stats, true);
  48 #endif
  49       LOG(DFATAL) << "BbrTcpSender is not supported.";
  50       return nullptr;
  51   }
  52   return nullptr;
  53 }
  54
  55 }  // namespace net