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