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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 // A send algorithm that adds pacing on top of an another send algorithm. | 5 // A send algorithm that adds pacing on top of an another send algorithm. |
| 6 // It uses the underlying sender's pacing rate to schedule packets. | 6 // It uses the underlying sender's pacing rate to schedule packets. |
| 7 // It also takes into consideration the expected granularity of the underlying | 7 // It also takes into consideration the expected granularity of the underlying |
| 8 // alarm to ensure that alarms are not set too aggressively, and err towards | 8 // alarm to ensure that alarms are not set too aggressively, and err towards |
| 9 // sending packets too early instead of too late. | 9 // sending packets too early instead of too late. |
| 10 | 10 |
| 11 #ifndef NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_ | 11 #ifndef NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_ |
| 12 #define NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_ | 12 #define NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_ |
| 13 | 13 |
| 14 #include <stdint.h> | 14 #include <stdint.h> |
| 15 | 15 |
| 16 #include <map> | 16 #include <map> |
| 17 #include <memory> | 17 #include <memory> |
| 18 | 18 |
| 19 #include "base/macros.h" | 19 #include "base/macros.h" |
| 20 #include "net/base/net_export.h" | |
| 21 #include "net/quic/core/congestion_control/send_algorithm_interface.h" | 20 #include "net/quic/core/congestion_control/send_algorithm_interface.h" |
| 22 #include "net/quic/core/quic_bandwidth.h" | 21 #include "net/quic/core/quic_bandwidth.h" |
| 23 #include "net/quic/core/quic_config.h" | 22 #include "net/quic/core/quic_config.h" |
| 24 #include "net/quic/core/quic_packets.h" | 23 #include "net/quic/core/quic_packets.h" |
| 25 #include "net/quic/core/quic_time.h" | 24 #include "net/quic/core/quic_time.h" |
| 25 #include "net/quic/platform/api/quic_export.h" |
| 26 | 26 |
| 27 namespace net { | 27 namespace net { |
| 28 | 28 |
| 29 class NET_EXPORT_PRIVATE PacingSender { | 29 class QUIC_EXPORT_PRIVATE PacingSender { |
| 30 public: | 30 public: |
| 31 PacingSender(); | 31 PacingSender(); |
| 32 ~PacingSender(); | 32 ~PacingSender(); |
| 33 | 33 |
| 34 // Sets the underlying sender. Does not take ownership of |sender|. |sender| | 34 // Sets the underlying sender. Does not take ownership of |sender|. |sender| |
| 35 // must not be null. This must be called before any of the | 35 // must not be null. This must be called before any of the |
| 36 // SendAlgorithmInterface wrapper methods are called. | 36 // SendAlgorithmInterface wrapper methods are called. |
| 37 void set_sender(SendAlgorithmInterface* sender); | 37 void set_sender(SendAlgorithmInterface* sender); |
| 38 | 38 |
| 39 void set_max_pacing_rate(QuicBandwidth max_pacing_rate) { | 39 void set_max_pacing_rate(QuicBandwidth max_pacing_rate) { |
| (...skipping 27 matching lines...) Expand all Loading... |
| 67 QuicTime last_delayed_packet_sent_time_; | 67 QuicTime last_delayed_packet_sent_time_; |
| 68 QuicTime ideal_next_packet_send_time_; // When can the next packet be sent. | 68 QuicTime ideal_next_packet_send_time_; // When can the next packet be sent. |
| 69 mutable bool was_last_send_delayed_; // True when the last send was delayed. | 69 mutable bool was_last_send_delayed_; // True when the last send was delayed. |
| 70 | 70 |
| 71 DISALLOW_COPY_AND_ASSIGN(PacingSender); | 71 DISALLOW_COPY_AND_ASSIGN(PacingSender); |
| 72 }; | 72 }; |
| 73 | 73 |
| 74 } // namespace net | 74 } // namespace net |
| 75 | 75 |
| 76 #endif // NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_ | 76 #endif // NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_ |
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