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 // Fix rate send side congestion control, used for testing. 6 7 #ifndef NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_ 8 #define NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_ 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "net/base/net_export.h" 13 #include "net/quic/quic_clock.h" 14 #include "net/quic/quic_time.h" 15 #include "net/quic/congestion_control/leaky_bucket.h" 16 #include "net/quic/congestion_control/paced_sender.h" 17 #include "net/quic/congestion_control/send_algorithm_interface.h" 18 19 namespace net { 20 21 class NET_EXPORT_PRIVATE FixRateSender : public SendAlgorithmInterface { 22 public: 23 explicit FixRateSender(const QuicClock* clock); 24 virtual ~FixRateSender(); 25 26 // Start implementation of SendAlgorithmInterface. 27 virtual void OnIncomingQuicCongestionFeedbackFrame( 28 const QuicCongestionFeedbackFrame& feedback, 29 QuicTime feedback_receive_time, 30 const SentPacketsMap& sent_packets) OVERRIDE; 31 virtual void OnIncomingAck(QuicPacketSequenceNumber acked_sequence_number, 32 QuicByteCount acked_bytes, 33 QuicTime::Delta rtt) OVERRIDE; 34 virtual void OnIncomingLoss(QuicTime ack_receive_time) OVERRIDE; 35 virtual void SentPacket(QuicTime sent_time, 36 QuicPacketSequenceNumber equence_number, 37 QuicByteCount bytes, 38 Retransmission is_retransmission) OVERRIDE; 39 virtual void AbandoningPacket(QuicPacketSequenceNumber sequence_number, 40 QuicByteCount abandoned_bytes) OVERRIDE; 41 virtual QuicTime::Delta TimeUntilSend( 42 QuicTime now, 43 Retransmission is_retransmission, 44 HasRetransmittableData has_retransmittable_data, 45 IsHandshake handshake) OVERRIDE; 46 virtual QuicBandwidth BandwidthEstimate() OVERRIDE; 47 virtual QuicTime::Delta SmoothedRtt() OVERRIDE; 48 virtual QuicTime::Delta RetransmissionDelay() OVERRIDE; 49 // End implementation of SendAlgorithmInterface. 50 51 private: 52 QuicByteCount CongestionWindow(); 53 54 QuicBandwidth bitrate_; 55 LeakyBucket fix_rate_leaky_bucket_; 56 PacedSender paced_sender_; 57 QuicByteCount data_in_flight_; 58 QuicTime::Delta latest_rtt_; 59 60 DISALLOW_COPY_AND_ASSIGN(FixRateSender); 61 }; 62 63 } // namespace net 64 65 #endif // NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_ 66
