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 SetFromConfig(const QuicConfig& config, bool is_server) OVERRIDE; 28 virtual void SetMaxPacketSize(QuicByteCount max_packet_size) OVERRIDE; 29 virtual void OnIncomingQuicCongestionFeedbackFrame( 30 const QuicCongestionFeedbackFrame& feedback, 31 QuicTime feedback_receive_time, 32 const SentPacketsMap& sent_packets) OVERRIDE; 33 virtual void OnPacketAcked(QuicPacketSequenceNumber acked_sequence_number, 34 QuicByteCount acked_bytes, 35 QuicTime::Delta rtt) OVERRIDE; 36 virtual void OnPacketLost(QuicPacketSequenceNumber sequence_number, 37 QuicTime ack_receive_time) OVERRIDE; 38 virtual bool OnPacketSent( 39 QuicTime sent_time, 40 QuicPacketSequenceNumber sequence_number, 41 QuicByteCount bytes, 42 TransmissionType transmission_type, 43 HasRetransmittableData has_retransmittable_data) OVERRIDE; 44 virtual void OnRetransmissionTimeout() OVERRIDE; 45 virtual void OnPacketAbandoned(QuicPacketSequenceNumber sequence_number, 46 QuicByteCount abandoned_bytes) OVERRIDE; 47 virtual QuicTime::Delta TimeUntilSend( 48 QuicTime now, 49 TransmissionType transmission_type, 50 HasRetransmittableData has_retransmittable_data, 51 IsHandshake handshake) OVERRIDE; 52 virtual QuicBandwidth BandwidthEstimate() const OVERRIDE; 53 virtual QuicTime::Delta SmoothedRtt() const OVERRIDE; 54 virtual QuicTime::Delta RetransmissionDelay() const OVERRIDE; 55 virtual QuicByteCount GetCongestionWindow() const OVERRIDE; 56 // End implementation of SendAlgorithmInterface. 57 58 private: 59 QuicByteCount CongestionWindow(); 60 61 QuicBandwidth bitrate_; 62 QuicByteCount max_segment_size_; 63 LeakyBucket fix_rate_leaky_bucket_; 64 PacedSender paced_sender_; 65 QuicByteCount data_in_flight_; 66 QuicTime::Delta latest_rtt_; 67 68 DISALLOW_COPY_AND_ASSIGN(FixRateSender); 69 }; 70 71 } // namespace net 72 73 #endif // NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_ 74
