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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // The pure virtual class for send side congestion control algorithm. | 5 // The pure virtual class for send side congestion control algorithm. |
| 6 | 6 |
| 7 #ifndef NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ | 7 #ifndef NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ |
| 8 #define NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ | 8 #define NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
| (...skipping 17 matching lines...) Expand all Loading... |
| 28 virtual void OnIncomingCongestionInfo( | 28 virtual void OnIncomingCongestionInfo( |
| 29 const CongestionInfo& congestion_info) = 0; | 29 const CongestionInfo& congestion_info) = 0; |
| 30 | 30 |
| 31 // Called for each received ACK, with sequence number from remote peer. | 31 // Called for each received ACK, with sequence number from remote peer. |
| 32 virtual void OnIncomingAck(QuicPacketSequenceNumber acked_sequence_number, | 32 virtual void OnIncomingAck(QuicPacketSequenceNumber acked_sequence_number, |
| 33 size_t acked_bytes, | 33 size_t acked_bytes, |
| 34 uint64 rtt_us) = 0; | 34 uint64 rtt_us) = 0; |
| 35 | 35 |
| 36 virtual void OnIncomingLoss(int number_of_lost_packets) = 0; | 36 virtual void OnIncomingLoss(int number_of_lost_packets) = 0; |
| 37 | 37 |
| 38 // Inform that we sent x bytest to the wire, and if that was a retransmission. | 38 // Inform that we sent x bytes to the wire, and if that was a retransmission. |
| 39 // Note: this function must be called for every packet sent to the wire. | 39 // Note: this function must be called for every packet sent to the wire. |
| 40 virtual void SentPacket(QuicPacketSequenceNumber sequence_number, | 40 virtual void SentPacket(QuicPacketSequenceNumber sequence_number, |
| 41 size_t bytes, | 41 size_t bytes, |
| 42 bool retransmit) = 0; | 42 bool retransmit) = 0; |
| 43 | 43 |
| 44 // Calculate the time until we can send the next packet. | 44 // Calculate the time until we can send the next packet. |
| 45 // Usage: When this returns 0, CongestionWindow returns the number of bytes | 45 // Usage: When this returns 0, CongestionWindow returns the number of bytes |
| 46 // of the congestion window. | 46 // of the congestion window. |
| 47 virtual int TimeUntilSend(bool retransmit) = 0; | 47 virtual int TimeUntilSend(bool retransmit) = 0; |
| 48 | 48 |
| 49 // The current available congestion window in bytes. | 49 // The current available congestion window in bytes. |
| 50 virtual size_t AvailableCongestionWindow() = 0; | 50 virtual size_t AvailableCongestionWindow() = 0; |
| 51 | 51 |
| 52 // What's the current estimated bandwidth in bytes per second. | 52 // What's the current estimated bandwidth in bytes per second. |
| 53 // Returns KNoValidEstimate when it does not have an estimate. | 53 // Returns KNoValidEstimate when it does not have an estimate. |
| 54 virtual int BandwidthEstimate() = 0; | 54 virtual int BandwidthEstimate() = 0; |
| 55 }; | 55 }; |
| 56 | 56 |
| 57 } // namespace net | 57 } // namespace net |
| 58 | 58 |
| 59 #endif // NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ | 59 #endif // NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ |
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