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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 // Cubic algorithm, helper class to TCP cubic. | 5 // Cubic algorithm, helper class to TCP cubic. |
| 6 // For details see http://netsrv.csc.ncsu.edu/export/cubic_a_new_tcp_2008.pdf. | 6 // For details see http://netsrv.csc.ncsu.edu/export/cubic_a_new_tcp_2008.pdf. |
| 7 | 7 |
| 8 #ifndef NET_QUIC_CORE_CONGESTION_CONTROL_CUBIC_H_ | 8 #ifndef NET_QUIC_CORE_CONGESTION_CONTROL_CUBIC_H_ |
| 9 #define NET_QUIC_CORE_CONGESTION_CONTROL_CUBIC_H_ | 9 #define NET_QUIC_CORE_CONGESTION_CONTROL_CUBIC_H_ |
| 10 | 10 |
| 11 #include <stdint.h> | 11 #include <stdint.h> |
| 12 | 12 |
| 13 #include "base/macros.h" | 13 #include "base/macros.h" |
| 14 #include "net/base/net_export.h" | |
| 15 #include "net/quic/core/quic_bandwidth.h" | 14 #include "net/quic/core/quic_bandwidth.h" |
| 16 #include "net/quic/core/quic_connection_stats.h" | 15 #include "net/quic/core/quic_connection_stats.h" |
| 17 #include "net/quic/core/quic_time.h" | 16 #include "net/quic/core/quic_time.h" |
| 18 #include "net/quic/platform/api/quic_clock.h" | 17 #include "net/quic/platform/api/quic_clock.h" |
| 18 #include "net/quic/platform/api/quic_export.h" |
| 19 | 19 |
| 20 namespace net { | 20 namespace net { |
| 21 | 21 |
| 22 class NET_EXPORT_PRIVATE Cubic { | 22 class QUIC_EXPORT_PRIVATE Cubic { |
| 23 public: | 23 public: |
| 24 explicit Cubic(const QuicClock* clock); | 24 explicit Cubic(const QuicClock* clock); |
| 25 | 25 |
| 26 void SetNumConnections(int num_connections); | 26 void SetNumConnections(int num_connections); |
| 27 | 27 |
| 28 // Call after a timeout to reset the cubic state. | 28 // Call after a timeout to reset the cubic state. |
| 29 void Reset(); | 29 void Reset(); |
| 30 | 30 |
| 31 // Compute a new congestion window to use after a loss event. | 31 // Compute a new congestion window to use after a loss event. |
| 32 // Returns the new congestion window in packets. The new congestion window is | 32 // Returns the new congestion window in packets. The new congestion window is |
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| 105 // Fix convex mode for cubic. | 105 // Fix convex mode for cubic. |
| 106 // TODO(jokulik): Remove once the cubic convex experiment is done. | 106 // TODO(jokulik): Remove once the cubic convex experiment is done. |
| 107 bool fix_convex_mode_; | 107 bool fix_convex_mode_; |
| 108 | 108 |
| 109 DISALLOW_COPY_AND_ASSIGN(Cubic); | 109 DISALLOW_COPY_AND_ASSIGN(Cubic); |
| 110 }; | 110 }; |
| 111 | 111 |
| 112 } // namespace net | 112 } // namespace net |
| 113 | 113 |
| 114 #endif // NET_QUIC_CORE_CONGESTION_CONTROL_CUBIC_H_ | 114 #endif // NET_QUIC_CORE_CONGESTION_CONTROL_CUBIC_H_ |
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