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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/quic/congestion_control/send_algorithm_interface.h"
#include "net/quic/congestion_control/tcp_cubic_bytes_sender.h"
#include "net/quic/congestion_control/tcp_cubic_sender.h"
#include "net/quic/quic_flags.h"
#include "net/quic/quic_protocol.h"
namespace net {
class RttStats;
// Factory for send side congestion control algorithm.
SendAlgorithmInterface* SendAlgorithmInterface::Create(
const QuicClock* clock,
const RttStats* rtt_stats,
CongestionControlType congestion_control_type,
QuicConnectionStats* stats,
QuicPacketCount initial_congestion_window) {
const QuicPacketCount max_congestion_window =
FLAGS_quic_limit_max_cwnd_to_receive_buffer
? (kDefaultSocketReceiveBuffer * kUsableRecieveBufferFraction) /
kDefaultTCPMSS
: kMaxTcpCongestionWindow;
switch (congestion_control_type) {
case kCubic:
return new TcpCubicSender(clock, rtt_stats, false /* don't use Reno */,
initial_congestion_window,
max_congestion_window, stats);
case kCubicBytes:
return new TcpCubicBytesSender(
clock, rtt_stats, false /* don't use Reno */,
initial_congestion_window, max_congestion_window, stats);
case kReno:
return new TcpCubicSender(clock, rtt_stats, true /* use Reno */,
initial_congestion_window,
max_congestion_window, stats);
case kRenoBytes:
return new TcpCubicBytesSender(clock, rtt_stats, true /* use Reno */,
initial_congestion_window,
max_congestion_window, stats);
case kBBR:
// TODO(rtenneti): Enable BbrTcpSender.
#if 0
return new BbrTcpSender(clock, rtt_stats, initial_congestion_window,
max_congestion_window, stats, true);
#endif
LOG(DFATAL) << "BbrTcpSender is not supported.";
return nullptr;
}
return nullptr;
}
} // namespace net
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