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// The pure virtual class for receive side congestion algorithm. 6 7#ifndef NET_QUIC_CONGESTION_CONTROL_RECEIVE_ALGORITHM_INTERFACE_H_ 8#define NET_QUIC_CONGESTION_CONTROL_RECEIVE_ALGORITHM_INTERFACE_H_ 9 10#include "base/basictypes.h" 11#include "net/base/net_export.h" 12#include "net/quic/quic_clock.h" 13#include "net/quic/quic_protocol.h" 14#include "net/quic/quic_time.h" 15 16namespace net { 17 18class NET_EXPORT_PRIVATE ReceiveAlgorithmInterface { 19 public: 20 static ReceiveAlgorithmInterface* Create(CongestionFeedbackType type); 21 22 virtual ~ReceiveAlgorithmInterface() {} 23 24 // Returns false if no QuicCongestionFeedbackFrame block is needed. 25 // Otherwise fills in feedback and return true. 26 virtual bool GenerateCongestionFeedback( 27 QuicCongestionFeedbackFrame* feedback) = 0; 28 29 // Should be called for each incoming packet. 30 // bytes: is the packet size in bytes including IP headers. 31 // sequence_number: is the unique sequence number from the QUIC packet header. 32 // timestamp: is the sent timestamp from the QUIC packet header. 33 virtual void RecordIncomingPacket(QuicByteCount bytes, 34 QuicPacketSequenceNumber sequence_number, 35 QuicTime timestamp) = 0; 36}; 37 38} // namespace net 39 40#endif // NET_QUIC_CONGESTION_CONTROL_RECEIVE_ALGORITHM_INTERFACE_H_ 41