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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 <algorithm> | 10 #include <algorithm> |
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40 | 40 |
41 virtual ~SendAlgorithmInterface() {} | 41 virtual ~SendAlgorithmInterface() {} |
42 | 42 |
43 virtual void SetFromConfig(const QuicConfig& config, | 43 virtual void SetFromConfig(const QuicConfig& config, |
44 Perspective perspective) = 0; | 44 Perspective perspective) = 0; |
45 | 45 |
46 // Sets the number of connections to emulate when doing congestion control, | 46 // Sets the number of connections to emulate when doing congestion control, |
47 // particularly for congestion avoidance. Can be set any time. | 47 // particularly for congestion avoidance. Can be set any time. |
48 virtual void SetNumEmulatedConnections(int num_connections) = 0; | 48 virtual void SetNumEmulatedConnections(int num_connections) = 0; |
49 | 49 |
50 // Sets the maximum congestion window in bytes. | |
51 virtual void SetMaxCongestionWindow(QuicByteCount max_congestion_window) = 0; | |
52 | |
53 // Indicates an update to the congestion state, caused either by an incoming | 50 // Indicates an update to the congestion state, caused either by an incoming |
54 // ack or loss event timeout. |rtt_updated| indicates whether a new | 51 // ack or loss event timeout. |rtt_updated| indicates whether a new |
55 // latest_rtt sample has been taken, |byte_in_flight| the bytes in flight | 52 // latest_rtt sample has been taken, |byte_in_flight| the bytes in flight |
56 // prior to the congestion event. |acked_packets| and |lost_packets| are | 53 // prior to the congestion event. |acked_packets| and |lost_packets| are |
57 // any packets considered acked or lost as a result of the congestion event. | 54 // any packets considered acked or lost as a result of the congestion event. |
58 virtual void OnCongestionEvent(bool rtt_updated, | 55 virtual void OnCongestionEvent(bool rtt_updated, |
59 QuicByteCount bytes_in_flight, | 56 QuicByteCount bytes_in_flight, |
60 const CongestionVector& acked_packets, | 57 const CongestionVector& acked_packets, |
61 const CongestionVector& lost_packets) = 0; | 58 const CongestionVector& lost_packets) = 0; |
62 | 59 |
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118 // Called by the Session when we get a bandwidth estimate from the client. | 115 // Called by the Session when we get a bandwidth estimate from the client. |
119 // Uses the max bandwidth in the params if |max_bandwidth_resumption| is true. | 116 // Uses the max bandwidth in the params if |max_bandwidth_resumption| is true. |
120 virtual void ResumeConnectionState( | 117 virtual void ResumeConnectionState( |
121 const CachedNetworkParameters& cached_network_params, | 118 const CachedNetworkParameters& cached_network_params, |
122 bool max_bandwidth_resumption) = 0; | 119 bool max_bandwidth_resumption) = 0; |
123 }; | 120 }; |
124 | 121 |
125 } // namespace net | 122 } // namespace net |
126 | 123 |
127 #endif // NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ | 124 #endif // NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_ |
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