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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_TEST_FAKE_NETWORK_PIPE_H_ | 11 #ifndef WEBRTC_TEST_FAKE_NETWORK_PIPE_H_ |
12 #define WEBRTC_TEST_FAKE_NETWORK_PIPE_H_ | 12 #define WEBRTC_TEST_FAKE_NETWORK_PIPE_H_ |
13 | 13 |
14 #include <queue> | 14 #include <queue> |
15 | 15 |
16 #include "webrtc/base/constructormagic.h" | 16 #include "webrtc/base/constructormagic.h" |
17 #include "webrtc/base/criticalsection.h" | 17 #include "webrtc/base/criticalsection.h" |
18 #include "webrtc/base/scoped_ptr.h" | 18 #include "webrtc/base/scoped_ptr.h" |
19 #include "webrtc/system_wrappers/include/clock.h" | |
mflodman
2015/12/09 10:11:25
Forward declare and move to cc-file.
pbos-webrtc
2015/12/09 10:19:04
Done.
| |
19 #include "webrtc/system_wrappers/include/event_wrapper.h" | 20 #include "webrtc/system_wrappers/include/event_wrapper.h" |
20 #include "webrtc/typedefs.h" | 21 #include "webrtc/typedefs.h" |
21 | 22 |
22 namespace webrtc { | 23 namespace webrtc { |
23 | 24 |
24 class CriticalSectionWrapper; | 25 class CriticalSectionWrapper; |
25 class NetworkPacket; | 26 class NetworkPacket; |
26 class PacketReceiver; | 27 class PacketReceiver; |
27 | 28 |
28 // Class faking a network link. This is a simple and naive solution just faking | 29 // Class faking a network link. This is a simple and naive solution just faking |
29 // capacity and adding an extra transport delay in addition to the capacity | 30 // capacity and adding an extra transport delay in addition to the capacity |
30 // introduced delay. | 31 // introduced delay. |
31 | 32 |
32 // TODO(mflodman) Add random and bursty packet loss. | 33 // TODO(mflodman) Add random and bursty packet loss. |
33 class FakeNetworkPipe { | 34 class FakeNetworkPipe { |
34 public: | 35 public: |
35 struct Config { | 36 struct Config { |
36 Config() | 37 Config() {} |
37 : queue_length_packets(0), | |
38 queue_delay_ms(0), | |
39 delay_standard_deviation_ms(0), | |
40 link_capacity_kbps(0), | |
41 loss_percent(0) { | |
42 } | |
43 // Queue length in number of packets. | 38 // Queue length in number of packets. |
44 size_t queue_length_packets; | 39 size_t queue_length_packets = 0; |
45 // Delay in addition to capacity induced delay. | 40 // Delay in addition to capacity induced delay. |
46 int queue_delay_ms; | 41 int queue_delay_ms = 0; |
47 // Standard deviation of the extra delay. | 42 // Standard deviation of the extra delay. |
48 int delay_standard_deviation_ms; | 43 int delay_standard_deviation_ms = 0; |
49 // Link capacity in kbps. | 44 // Link capacity in kbps. |
50 int link_capacity_kbps; | 45 int link_capacity_kbps = 0; |
51 // Random packet loss. | 46 // Random packet loss. |
52 int loss_percent; | 47 int loss_percent = 0; |
53 }; | 48 }; |
54 | 49 |
55 explicit FakeNetworkPipe(const FakeNetworkPipe::Config& config); | 50 FakeNetworkPipe(Clock* clock, const FakeNetworkPipe::Config& config); |
56 ~FakeNetworkPipe(); | 51 ~FakeNetworkPipe(); |
57 | 52 |
58 // Must not be called in parallel with SendPacket or Process. | 53 // Must not be called in parallel with SendPacket or Process. |
59 void SetReceiver(PacketReceiver* receiver); | 54 void SetReceiver(PacketReceiver* receiver); |
60 | 55 |
61 // Sets a new configuration. This won't affect packets already in the pipe. | 56 // Sets a new configuration. This won't affect packets already in the pipe. |
62 void SetConfig(const FakeNetworkPipe::Config& config); | 57 void SetConfig(const FakeNetworkPipe::Config& config); |
63 | 58 |
64 // Sends a new packet to the link. | 59 // Sends a new packet to the link. |
65 void SendPacket(const uint8_t* packet, size_t packet_length); | 60 void SendPacket(const uint8_t* packet, size_t packet_length); |
66 | 61 |
67 // Processes the network queues and trigger PacketReceiver::IncomingPacket for | 62 // Processes the network queues and trigger PacketReceiver::IncomingPacket for |
68 // packets ready to be delivered. | 63 // packets ready to be delivered. |
69 void Process(); | 64 void Process(); |
70 int64_t TimeUntilNextProcess() const; | 65 int64_t TimeUntilNextProcess() const; |
71 | 66 |
72 // Get statistics. | 67 // Get statistics. |
73 float PercentageLoss(); | 68 float PercentageLoss(); |
74 int AverageDelay(); | 69 int AverageDelay(); |
75 size_t dropped_packets() { return dropped_packets_; } | 70 size_t dropped_packets() { return dropped_packets_; } |
76 size_t sent_packets() { return sent_packets_; } | 71 size_t sent_packets() { return sent_packets_; } |
77 | 72 |
78 private: | 73 private: |
74 Clock* const clock_; | |
79 mutable rtc::CriticalSection lock_; | 75 mutable rtc::CriticalSection lock_; |
80 PacketReceiver* packet_receiver_; | 76 PacketReceiver* packet_receiver_; |
81 std::queue<NetworkPacket*> capacity_link_; | 77 std::queue<NetworkPacket*> capacity_link_; |
82 std::queue<NetworkPacket*> delay_link_; | 78 std::queue<NetworkPacket*> delay_link_; |
83 | 79 |
84 // Link configuration. | 80 // Link configuration. |
85 Config config_; | 81 Config config_; |
86 | 82 |
87 // Statistics. | 83 // Statistics. |
88 size_t dropped_packets_; | 84 size_t dropped_packets_; |
89 size_t sent_packets_; | 85 size_t sent_packets_; |
90 int total_packet_delay_; | 86 int total_packet_delay_; |
91 | 87 |
92 int64_t next_process_time_; | 88 int64_t next_process_time_; |
93 | 89 |
94 RTC_DISALLOW_COPY_AND_ASSIGN(FakeNetworkPipe); | 90 RTC_DISALLOW_COPY_AND_ASSIGN(FakeNetworkPipe); |
95 }; | 91 }; |
96 | 92 |
97 } // namespace webrtc | 93 } // namespace webrtc |
98 | 94 |
99 #endif // WEBRTC_TEST_FAKE_NETWORK_PIPE_H_ | 95 #endif // WEBRTC_TEST_FAKE_NETWORK_PIPE_H_ |
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