Index: net/quic/congestion_control/tcp_cubic_sender.h |
diff --git a/net/quic/congestion_control/tcp_cubic_sender.h b/net/quic/congestion_control/tcp_cubic_sender.h |
deleted file mode 100644 |
index a919d027b1e13b799e007e62f8a8b283627583c2..0000000000000000000000000000000000000000 |
--- a/net/quic/congestion_control/tcp_cubic_sender.h |
+++ /dev/null |
@@ -1,144 +0,0 @@ |
-// 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. |
-// |
-// TCP cubic send side congestion algorithm, emulates the behavior of |
-// TCP cubic. |
- |
-#ifndef NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ |
-#define NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ |
- |
-#include "base/basictypes.h" |
-#include "base/compiler_specific.h" |
-#include "net/base/net_export.h" |
-#include "net/quic/congestion_control/cubic.h" |
-#include "net/quic/congestion_control/hybrid_slow_start.h" |
-#include "net/quic/congestion_control/prr_sender.h" |
-#include "net/quic/congestion_control/send_algorithm_interface.h" |
-#include "net/quic/crypto/cached_network_parameters.h" |
-#include "net/quic/quic_bandwidth.h" |
-#include "net/quic/quic_connection_stats.h" |
-#include "net/quic/quic_protocol.h" |
-#include "net/quic/quic_time.h" |
- |
-namespace net { |
- |
-class RttStats; |
- |
-namespace test { |
-class TcpCubicSenderPeer; |
-} // namespace test |
- |
-class NET_EXPORT_PRIVATE TcpCubicSender : public SendAlgorithmInterface { |
- public: |
- // Reno option and max_tcp_congestion_window are provided for testing. |
- TcpCubicSender(const QuicClock* clock, |
- const RttStats* rtt_stats, |
- bool reno, |
- QuicPacketCount initial_tcp_congestion_window, |
- QuicPacketCount max_tcp_congestion_window, |
- QuicConnectionStats* stats); |
- ~TcpCubicSender() override; |
- |
- // Start implementation of SendAlgorithmInterface. |
- void SetFromConfig(const QuicConfig& config, |
- bool is_server, |
- bool using_pacing) override; |
- bool ResumeConnectionState( |
- const CachedNetworkParameters& cached_network_params) override; |
- void SetNumEmulatedConnections(int num_connections) override; |
- void OnCongestionEvent(bool rtt_updated, |
- QuicByteCount bytes_in_flight, |
- const CongestionVector& acked_packets, |
- const CongestionVector& lost_packets) override; |
- bool OnPacketSent(QuicTime sent_time, |
- QuicByteCount bytes_in_flight, |
- QuicPacketSequenceNumber sequence_number, |
- QuicByteCount bytes, |
- HasRetransmittableData is_retransmittable) override; |
- void OnRetransmissionTimeout(bool packets_retransmitted) override; |
- void RevertRetransmissionTimeout() override; |
- QuicTime::Delta TimeUntilSend( |
- QuicTime now, |
- QuicByteCount bytes_in_flight, |
- HasRetransmittableData has_retransmittable_data) const override; |
- QuicBandwidth PacingRate() const override; |
- QuicBandwidth BandwidthEstimate() const override; |
- bool HasReliableBandwidthEstimate() const override; |
- QuicTime::Delta RetransmissionDelay() const override; |
- QuicByteCount GetCongestionWindow() const override; |
- bool InSlowStart() const override; |
- bool InRecovery() const override; |
- QuicByteCount GetSlowStartThreshold() const override; |
- CongestionControlType GetCongestionControlType() const override; |
- // End implementation of SendAlgorithmInterface. |
- |
- private: |
- friend class test::TcpCubicSenderPeer; |
- |
- // Compute the TCP Reno beta based on the current number of connections. |
- float RenoBeta() const; |
- |
- // TODO(ianswett): Remove these and migrate to OnCongestionEvent. |
- void OnPacketAcked(QuicPacketSequenceNumber acked_sequence_number, |
- QuicByteCount acked_bytes, |
- QuicByteCount bytes_in_flight); |
- void OnPacketLost(QuicPacketSequenceNumber largest_loss, |
- QuicByteCount bytes_in_flight); |
- |
- void MaybeIncreaseCwnd(QuicPacketSequenceNumber acked_sequence_number, |
- QuicByteCount bytes_in_flight); |
- bool IsCwndLimited(QuicByteCount bytes_in_flight) const; |
- |
- HybridSlowStart hybrid_slow_start_; |
- Cubic cubic_; |
- PrrSender prr_; |
- const RttStats* rtt_stats_; |
- QuicConnectionStats* stats_; |
- |
- // If true, Reno congestion control is used instead of Cubic. |
- const bool reno_; |
- |
- // Number of connections to simulate. |
- uint32 num_connections_; |
- |
- // ACK counter for the Reno implementation. |
- uint64 congestion_window_count_; |
- |
- // Track the largest packet that has been sent. |
- QuicPacketSequenceNumber largest_sent_sequence_number_; |
- |
- // Track the largest packet that has been acked. |
- QuicPacketSequenceNumber largest_acked_sequence_number_; |
- |
- // Track the largest sequence number outstanding when a CWND cutback occurs. |
- QuicPacketSequenceNumber largest_sent_at_last_cutback_; |
- |
- // Congestion window in packets. |
- QuicPacketCount congestion_window_; |
- |
- // Congestion window before the last RTO. |
- // Must be 0 before or after RTO recovery. |
- QuicPacketCount previous_congestion_window_; |
- |
- // Slow start congestion window in packets, aka ssthresh. |
- QuicPacketCount slowstart_threshold_; |
- |
- // Slow start threshold before the last loss event or RTO. |
- QuicPacketCount previous_slowstart_threshold_; |
- |
- // Whether the last loss event caused us to exit slowstart. |
- // Used for stats collection of slowstart_packets_lost |
- bool last_cutback_exited_slowstart_; |
- |
- // Maximum number of outstanding packets for tcp. |
- QuicPacketCount max_tcp_congestion_window_; |
- |
- const QuicClock* clock_; |
- |
- DISALLOW_COPY_AND_ASSIGN(TcpCubicSender); |
-}; |
- |
-} // namespace net |
- |
-#endif // NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ |