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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // TCP cubic send side congestion algorithm, emulates the behavior of | 5 // TCP cubic send side congestion algorithm, emulates the behavior of |
| 6 // TCP cubic. | 6 // TCP cubic. |
| 7 | 7 |
| 8 #ifndef NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ | 8 #ifndef NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ |
| 9 #define NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ | 9 #define NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ |
| 10 | 10 |
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| 31 public: | 31 public: |
| 32 // Reno option and max_tcp_congestion_window are provided for testing. | 32 // Reno option and max_tcp_congestion_window are provided for testing. |
| 33 TcpCubicSender(const QuicClock* clock, | 33 TcpCubicSender(const QuicClock* clock, |
| 34 const RttStats* rtt_stats, | 34 const RttStats* rtt_stats, |
| 35 bool reno, | 35 bool reno, |
| 36 QuicTcpCongestionWindow max_tcp_congestion_window, | 36 QuicTcpCongestionWindow max_tcp_congestion_window, |
| 37 QuicConnectionStats* stats); | 37 QuicConnectionStats* stats); |
| 38 virtual ~TcpCubicSender(); | 38 virtual ~TcpCubicSender(); |
| 39 | 39 |
| 40 // Start implementation of SendAlgorithmInterface. | 40 // Start implementation of SendAlgorithmInterface. |
| 41 virtual void SetFromConfig(const QuicConfig& config, bool is_server) OVERRIDE; | 41 virtual void SetFromConfig(const QuicConfig& config, bool is_server) override; |
| 42 virtual void SetNumEmulatedConnections(int num_connections) OVERRIDE; | 42 virtual void SetNumEmulatedConnections(int num_connections) override; |
| 43 virtual void OnIncomingQuicCongestionFeedbackFrame( | 43 virtual void OnIncomingQuicCongestionFeedbackFrame( |
| 44 const QuicCongestionFeedbackFrame& feedback, | 44 const QuicCongestionFeedbackFrame& feedback, |
| 45 QuicTime feedback_receive_time) OVERRIDE; | 45 QuicTime feedback_receive_time) override; |
| 46 virtual void OnCongestionEvent(bool rtt_updated, | 46 virtual void OnCongestionEvent(bool rtt_updated, |
| 47 QuicByteCount bytes_in_flight, | 47 QuicByteCount bytes_in_flight, |
| 48 const CongestionVector& acked_packets, | 48 const CongestionVector& acked_packets, |
| 49 const CongestionVector& lost_packets) OVERRIDE; | 49 const CongestionVector& lost_packets) override; |
| 50 virtual bool OnPacketSent(QuicTime sent_time, | 50 virtual bool OnPacketSent(QuicTime sent_time, |
| 51 QuicByteCount bytes_in_flight, | 51 QuicByteCount bytes_in_flight, |
| 52 QuicPacketSequenceNumber sequence_number, | 52 QuicPacketSequenceNumber sequence_number, |
| 53 QuicByteCount bytes, | 53 QuicByteCount bytes, |
| 54 HasRetransmittableData is_retransmittable) OVERRIDE; | 54 HasRetransmittableData is_retransmittable) override; |
| 55 virtual void OnRetransmissionTimeout(bool packets_retransmitted) OVERRIDE; | 55 virtual void OnRetransmissionTimeout(bool packets_retransmitted) override; |
| 56 virtual void RevertRetransmissionTimeout() OVERRIDE; | 56 virtual void RevertRetransmissionTimeout() override; |
| 57 virtual QuicTime::Delta TimeUntilSend( | 57 virtual QuicTime::Delta TimeUntilSend( |
| 58 QuicTime now, | 58 QuicTime now, |
| 59 QuicByteCount bytes_in_flight, | 59 QuicByteCount bytes_in_flight, |
| 60 HasRetransmittableData has_retransmittable_data) const OVERRIDE; | 60 HasRetransmittableData has_retransmittable_data) const override; |
| 61 virtual QuicBandwidth BandwidthEstimate() const OVERRIDE; | 61 virtual QuicBandwidth BandwidthEstimate() const override; |
| 62 virtual bool HasReliableBandwidthEstimate() const OVERRIDE; | 62 virtual bool HasReliableBandwidthEstimate() const override; |
| 63 virtual QuicTime::Delta RetransmissionDelay() const OVERRIDE; | 63 virtual QuicTime::Delta RetransmissionDelay() const override; |
| 64 virtual QuicByteCount GetCongestionWindow() const OVERRIDE; | 64 virtual QuicByteCount GetCongestionWindow() const override; |
| 65 virtual bool InSlowStart() const OVERRIDE; | 65 virtual bool InSlowStart() const override; |
| 66 virtual bool InRecovery() const OVERRIDE; | 66 virtual bool InRecovery() const override; |
| 67 virtual QuicByteCount GetSlowStartThreshold() const OVERRIDE; | 67 virtual QuicByteCount GetSlowStartThreshold() const override; |
| 68 virtual CongestionControlType GetCongestionControlType() const OVERRIDE; | 68 virtual CongestionControlType GetCongestionControlType() const override; |
| 69 // End implementation of SendAlgorithmInterface. | 69 // End implementation of SendAlgorithmInterface. |
| 70 | 70 |
| 71 private: | 71 private: |
| 72 friend class test::TcpCubicSenderPeer; | 72 friend class test::TcpCubicSenderPeer; |
| 73 | 73 |
| 74 // TODO(ianswett): Remove these and migrate to OnCongestionEvent. | 74 // TODO(ianswett): Remove these and migrate to OnCongestionEvent. |
| 75 void OnPacketAcked(QuicPacketSequenceNumber acked_sequence_number, | 75 void OnPacketAcked(QuicPacketSequenceNumber acked_sequence_number, |
| 76 QuicByteCount acked_bytes, | 76 QuicByteCount acked_bytes, |
| 77 QuicByteCount bytes_in_flight); | 77 QuicByteCount bytes_in_flight); |
| 78 void OnPacketLost(QuicPacketSequenceNumber largest_loss, | 78 void OnPacketLost(QuicPacketSequenceNumber largest_loss, |
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| 140 | 140 |
| 141 // Maximum number of outstanding packets for tcp. | 141 // Maximum number of outstanding packets for tcp. |
| 142 QuicTcpCongestionWindow max_tcp_congestion_window_; | 142 QuicTcpCongestionWindow max_tcp_congestion_window_; |
| 143 | 143 |
| 144 DISALLOW_COPY_AND_ASSIGN(TcpCubicSender); | 144 DISALLOW_COPY_AND_ASSIGN(TcpCubicSender); |
| 145 }; | 145 }; |
| 146 | 146 |
| 147 } // namespace net | 147 } // namespace net |
| 148 | 148 |
| 149 #endif // NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ | 149 #endif // NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_SENDER_H_ |
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