OLD | NEW |
| (Empty) |
1 /* | |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | |
3 * | |
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 | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #ifndef WEBRTC_CALL_RTC_EVENT_LOG_HELPER_THREAD_H_ | |
12 #define WEBRTC_CALL_RTC_EVENT_LOG_HELPER_THREAD_H_ | |
13 | |
14 #include <limits> | |
15 #include <memory> | |
16 #include <string> | |
17 #include <utility> | |
18 #include <vector> | |
19 | |
20 #include "webrtc/base/constructormagic.h" | |
21 #include "webrtc/base/event.h" | |
22 #include "webrtc/base/ignore_wundef.h" | |
23 #include "webrtc/base/platform_thread.h" | |
24 #include "webrtc/base/swap_queue.h" | |
25 #include "webrtc/call/ringbuffer.h" | |
26 #include "webrtc/system_wrappers/include/clock.h" | |
27 #include "webrtc/system_wrappers/include/file_wrapper.h" | |
28 | |
29 #ifdef ENABLE_RTC_EVENT_LOG | |
30 // Files generated at build-time by the protobuf compiler. | |
31 RTC_PUSH_IGNORING_WUNDEF() | |
32 #ifdef WEBRTC_ANDROID_PLATFORM_BUILD | |
33 #include "external/webrtc/webrtc/call/rtc_event_log.pb.h" | |
34 #else | |
35 #include "webrtc/call/rtc_event_log.pb.h" | |
36 #endif | |
37 RTC_POP_IGNORING_WUNDEF() | |
38 #endif | |
39 | |
40 #ifdef ENABLE_RTC_EVENT_LOG | |
41 | |
42 namespace webrtc { | |
43 | |
44 class RtcEventLogHelperThread final { | |
45 public: | |
46 struct ControlMessage { | |
47 ControlMessage() | |
48 : message_type(STOP_FILE), | |
49 file(nullptr), | |
50 max_size_bytes(0), | |
51 start_time(0), | |
52 stop_time(0) {} | |
53 enum { START_FILE, STOP_FILE, TERMINATE_THREAD } message_type; | |
54 | |
55 std::unique_ptr<FileWrapper> file; // Only used with START_FILE. | |
56 int64_t max_size_bytes; // Only used with START_FILE. | |
57 int64_t start_time; // Only used with START_FILE. | |
58 int64_t stop_time; // Used with all 3 message types. | |
59 | |
60 friend void swap(ControlMessage& lhs, ControlMessage& rhs) { | |
61 using std::swap; | |
62 swap(lhs.message_type, rhs.message_type); | |
63 lhs.file.swap(rhs.file); | |
64 swap(lhs.max_size_bytes, rhs.max_size_bytes); | |
65 swap(lhs.start_time, rhs.start_time); | |
66 swap(lhs.stop_time, rhs.stop_time); | |
67 } | |
68 }; | |
69 | |
70 RtcEventLogHelperThread( | |
71 SwapQueue<ControlMessage>* message_queue, | |
72 SwapQueue<std::unique_ptr<rtclog::Event>>* event_queue, | |
73 const Clock* const clock); | |
74 ~RtcEventLogHelperThread(); | |
75 | |
76 // This function MUST be called once a STOP_FILE message is added to the | |
77 // signalling queue. The function will make sure that the output thread | |
78 // wakes up to read the message, and it blocks until the output thread has | |
79 // finished writing to the file. | |
80 void WaitForFileFinished(); | |
81 | |
82 // This fuction MUST be called once an event is added to the event queue. | |
83 void SignalNewEvent(); | |
84 | |
85 private: | |
86 static bool ThreadOutputFunction(void* obj); | |
87 | |
88 bool AppendEventToString(rtclog::Event* event); | |
89 bool LogToMemory(); | |
90 void StartLogFile(); | |
91 bool LogToFile(); | |
92 void StopLogFile(); | |
93 void ProcessEvents(); | |
94 | |
95 // Message queues for passing events to the logging thread. | |
96 SwapQueue<ControlMessage>* message_queue_; | |
97 SwapQueue<std::unique_ptr<rtclog::Event>>* event_queue_; | |
98 | |
99 // History containing the most recent events (~ 10 s). | |
100 RingBuffer<std::unique_ptr<rtclog::Event>> history_; | |
101 | |
102 // History containing all past configuration events. | |
103 std::vector<std::unique_ptr<rtclog::Event>> config_history_; | |
104 | |
105 std::unique_ptr<FileWrapper> file_; | |
106 rtc::PlatformThread thread_; | |
107 | |
108 int64_t max_size_bytes_; | |
109 int64_t written_bytes_; | |
110 int64_t start_time_; | |
111 int64_t stop_time_; | |
112 | |
113 bool has_recent_event_; | |
114 std::unique_ptr<rtclog::Event> most_recent_event_; | |
115 | |
116 // Temporary space for serializing profobuf data. | |
117 std::string output_string_; | |
118 | |
119 rtc::Event wake_periodically_; | |
120 rtc::Event wake_from_hibernation_; | |
121 rtc::Event file_finished_; | |
122 | |
123 const Clock* const clock_; | |
124 | |
125 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(RtcEventLogHelperThread); | |
126 }; | |
127 | |
128 } // namespace webrtc | |
129 | |
130 #endif // ENABLE_RTC_EVENT_LOG | |
131 | |
132 #endif // WEBRTC_CALL_RTC_EVENT_LOG_HELPER_THREAD_H_ | |
OLD | NEW |