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// 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.
//
// Fix rate send side congestion control, used for testing.
#ifndef NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_
#define NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "net/base/net_export.h"
#include "net/quic/quic_clock.h"
#include "net/quic/quic_time.h"
#include "net/quic/congestion_control/leaky_bucket.h"
#include "net/quic/congestion_control/paced_sender.h"
#include "net/quic/congestion_control/send_algorithm_interface.h"
namespace net {
class NET_EXPORT_PRIVATE FixRateSender : public SendAlgorithmInterface {
public:
explicit FixRateSender(const QuicClock* clock);
virtual ~FixRateSender();
// Start implementation of SendAlgorithmInterface.
virtual void OnIncomingQuicCongestionFeedbackFrame(
const QuicCongestionFeedbackFrame& feedback,
QuicTime feedback_receive_time,
QuicBandwidth sent_bandwidth,
const SentPacketsMap& sent_packets) OVERRIDE;
virtual void OnIncomingAck(QuicPacketSequenceNumber acked_sequence_number,
QuicByteCount acked_bytes,
QuicTime::Delta rtt) OVERRIDE;
virtual void OnIncomingLoss(QuicTime ack_receive_time) OVERRIDE;
virtual void SentPacket(QuicTime sent_time,
QuicPacketSequenceNumber equence_number,
QuicByteCount bytes,
bool is_retransmission) OVERRIDE;
virtual void AbandoningPacket(QuicPacketSequenceNumber sequence_number,
QuicByteCount abandoned_bytes) OVERRIDE;
virtual QuicTime::Delta TimeUntilSend(QuicTime now,
bool is_retransmission,
bool has_retransmittable_data) OVERRIDE;
virtual QuicBandwidth BandwidthEstimate() OVERRIDE;
virtual QuicTime::Delta SmoothedRtt() OVERRIDE;
// End implementation of SendAlgorithmInterface.
private:
QuicByteCount CongestionWindow();
QuicBandwidth bitrate_;
LeakyBucket fix_rate_leaky_bucket_;
PacedSender paced_sender_;
QuicByteCount data_in_flight_;
QuicTime::Delta latest_rtt_;
DISALLOW_COPY_AND_ASSIGN(FixRateSender);
};
} // namespace net
#endif // NET_QUIC_CONGESTION_CONTROL_FIX_RATE_SENDER_H_
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