| OLD | NEW |
| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 // A send algorithm which adds pacing on top of an another send algorithm. | 5 // A send algorithm which adds pacing on top of an another send algorithm. |
| 6 // It uses the underlying sender's bandwidth estimate to determine the | 6 // It uses the underlying sender's bandwidth estimate to determine the |
| 7 // pacing rate to be used. It also takes into consideration the expected | 7 // pacing rate to be used. It also takes into consideration the expected |
| 8 // resolution of the underlying alarm mechanism to ensure that alarms are | 8 // resolution of the underlying alarm mechanism to ensure that alarms are |
| 9 // not set too aggressively, and to smooth out variations. | 9 // not set too aggressively, and to smooth out variations. |
| 10 | 10 |
| (...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 48 QuicByteCount bytes_in_flight, | 48 QuicByteCount bytes_in_flight, |
| 49 QuicPacketSequenceNumber sequence_number, | 49 QuicPacketSequenceNumber sequence_number, |
| 50 QuicByteCount bytes, | 50 QuicByteCount bytes, |
| 51 HasRetransmittableData is_retransmittable) override; | 51 HasRetransmittableData is_retransmittable) override; |
| 52 virtual void OnRetransmissionTimeout(bool packets_retransmitted) override; | 52 virtual void OnRetransmissionTimeout(bool packets_retransmitted) override; |
| 53 virtual void RevertRetransmissionTimeout() override; | 53 virtual void RevertRetransmissionTimeout() override; |
| 54 virtual QuicTime::Delta TimeUntilSend( | 54 virtual QuicTime::Delta TimeUntilSend( |
| 55 QuicTime now, | 55 QuicTime now, |
| 56 QuicByteCount bytes_in_flight, | 56 QuicByteCount bytes_in_flight, |
| 57 HasRetransmittableData has_retransmittable_data) const override; | 57 HasRetransmittableData has_retransmittable_data) const override; |
| 58 virtual QuicBandwidth PacingRate() const override; |
| 58 virtual QuicBandwidth BandwidthEstimate() const override; | 59 virtual QuicBandwidth BandwidthEstimate() const override; |
| 59 virtual bool HasReliableBandwidthEstimate() const override; | 60 virtual bool HasReliableBandwidthEstimate() const override; |
| 60 virtual QuicTime::Delta RetransmissionDelay() const override; | 61 virtual QuicTime::Delta RetransmissionDelay() const override; |
| 61 virtual QuicByteCount GetCongestionWindow() const override; | 62 virtual QuicByteCount GetCongestionWindow() const override; |
| 62 virtual bool InSlowStart() const override; | 63 virtual bool InSlowStart() const override; |
| 63 virtual bool InRecovery() const override; | 64 virtual bool InRecovery() const override; |
| 64 virtual QuicByteCount GetSlowStartThreshold() const override; | 65 virtual QuicByteCount GetSlowStartThreshold() const override; |
| 65 virtual CongestionControlType GetCongestionControlType() const override; | 66 virtual CongestionControlType GetCongestionControlType() const override; |
| 66 | 67 |
| 67 private: | 68 private: |
| 68 scoped_ptr<SendAlgorithmInterface> sender_; // Underlying sender. | 69 scoped_ptr<SendAlgorithmInterface> sender_; // Underlying sender. |
| 69 QuicTime::Delta alarm_granularity_; | 70 QuicTime::Delta alarm_granularity_; |
| 70 uint32 initial_packet_burst_; | 71 uint32 initial_packet_burst_; |
| 71 mutable uint32 burst_tokens_; | 72 mutable uint32 burst_tokens_; |
| 72 // Send time of the last packet considered delayed. | 73 // Send time of the last packet considered delayed. |
| 73 QuicTime last_delayed_packet_sent_time_; | 74 QuicTime last_delayed_packet_sent_time_; |
| 74 QuicTime next_packet_send_time_; // When can the next packet be sent. | 75 QuicTime next_packet_send_time_; // When can the next packet be sent. |
| 75 mutable bool was_last_send_delayed_; // True when the last send was delayed. | 76 mutable bool was_last_send_delayed_; // True when the last send was delayed. |
| 76 | 77 |
| 77 DISALLOW_COPY_AND_ASSIGN(PacingSender); | 78 DISALLOW_COPY_AND_ASSIGN(PacingSender); |
| 78 }; | 79 }; |
| 79 | 80 |
| 80 } // namespace net | 81 } // namespace net |
| 81 | 82 |
| 82 #endif // NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_ | 83 #endif // NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_ |
| OLD | NEW |