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 16 namespace net { 17 18 class 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
