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Side by Side Diff: net/quic/congestion_control/pacing_sender.h

Issue 1535363003: Switch to standard integer types in net/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: stddef Created 5 years ago
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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_CONGESTION_CONTROL_PACING_SENDER_H_ 11 #ifndef NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_
12 #define NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_ 12 #define NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_
13 13
14 #include <stdint.h>
15
14 #include <map> 16 #include <map>
15 17
16 #include "base/basictypes.h" 18 #include "base/macros.h"
17 #include "base/memory/scoped_ptr.h" 19 #include "base/memory/scoped_ptr.h"
18 #include "net/quic/congestion_control/send_algorithm_interface.h" 20 #include "net/quic/congestion_control/send_algorithm_interface.h"
19 #include "net/quic/quic_bandwidth.h" 21 #include "net/quic/quic_bandwidth.h"
20 #include "net/quic/quic_config.h" 22 #include "net/quic/quic_config.h"
21 #include "net/quic/quic_protocol.h" 23 #include "net/quic/quic_protocol.h"
22 #include "net/quic/quic_time.h" 24 #include "net/quic/quic_time.h"
23 25
24 namespace net { 26 namespace net {
25 27
26 class NET_EXPORT_PRIVATE PacingSender : public SendAlgorithmInterface { 28 class NET_EXPORT_PRIVATE PacingSender : public SendAlgorithmInterface {
27 public: 29 public:
28 // Create a PacingSender to wrap the specified sender. |alarm_granularity| 30 // Create a PacingSender to wrap the specified sender. |alarm_granularity|
29 // indicates to the pacer to send that far into the future, since it should 31 // indicates to the pacer to send that far into the future, since it should
30 // not expect a callback before that time delta. |initial_packet_burst| is 32 // not expect a callback before that time delta. |initial_packet_burst| is
31 // the number of packets sent without pacing after quiescence. 33 // the number of packets sent without pacing after quiescence.
32 PacingSender(SendAlgorithmInterface* sender, 34 PacingSender(SendAlgorithmInterface* sender,
33 QuicTime::Delta alarm_granularity, 35 QuicTime::Delta alarm_granularity,
34 uint32 initial_packet_burst); 36 uint32_t initial_packet_burst);
35 ~PacingSender() override; 37 ~PacingSender() override;
36 38
37 // SendAlgorithmInterface methods. 39 // SendAlgorithmInterface methods.
38 void SetFromConfig(const QuicConfig& config, 40 void SetFromConfig(const QuicConfig& config,
39 Perspective perspective) override; 41 Perspective perspective) override;
40 void ResumeConnectionState( 42 void ResumeConnectionState(
41 const CachedNetworkParameters& cached_network_params, 43 const CachedNetworkParameters& cached_network_params,
42 bool max_bandwidth_resumption) override; 44 bool max_bandwidth_resumption) override;
43 void SetNumEmulatedConnections(int num_connections) override; 45 void SetNumEmulatedConnections(int num_connections) override;
44 void SetMaxCongestionWindow(QuicByteCount max_congestion_window) override; 46 void SetMaxCongestionWindow(QuicByteCount max_congestion_window) override;
(...skipping 21 matching lines...) Expand all
66 QuicByteCount GetSlowStartThreshold() const override; 68 QuicByteCount GetSlowStartThreshold() const override;
67 CongestionControlType GetCongestionControlType() const override; 69 CongestionControlType GetCongestionControlType() const override;
68 // End implementation of SendAlgorithmInterface. 70 // End implementation of SendAlgorithmInterface.
69 71
70 private: 72 private:
71 scoped_ptr<SendAlgorithmInterface> sender_; // Underlying sender. 73 scoped_ptr<SendAlgorithmInterface> sender_; // Underlying sender.
72 // The estimated system alarm granularity. 74 // The estimated system alarm granularity.
73 const QuicTime::Delta alarm_granularity_; 75 const QuicTime::Delta alarm_granularity_;
74 // Configured maximum size of the burst coming out of quiescence. The burst 76 // Configured maximum size of the burst coming out of quiescence. The burst
75 // is never larger than the current CWND in packets. 77 // is never larger than the current CWND in packets.
76 const uint32 initial_packet_burst_; 78 const uint32_t initial_packet_burst_;
77 // Number of unpaced packets to be sent before packets are delayed. 79 // Number of unpaced packets to be sent before packets are delayed.
78 uint32 burst_tokens_; 80 uint32_t burst_tokens_;
79 // Send time of the last packet considered delayed. 81 // Send time of the last packet considered delayed.
80 QuicTime last_delayed_packet_sent_time_; 82 QuicTime last_delayed_packet_sent_time_;
81 QuicTime ideal_next_packet_send_time_; // When can the next packet be sent. 83 QuicTime ideal_next_packet_send_time_; // When can the next packet be sent.
82 mutable bool was_last_send_delayed_; // True when the last send was delayed. 84 mutable bool was_last_send_delayed_; // True when the last send was delayed.
83 85
84 DISALLOW_COPY_AND_ASSIGN(PacingSender); 86 DISALLOW_COPY_AND_ASSIGN(PacingSender);
85 }; 87 };
86 88
87 } // namespace net 89 } // namespace net
88 90
89 #endif // NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_ 91 #endif // NET_QUIC_CONGESTION_CONTROL_PACING_SENDER_H_
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