1 /*
2  *  Copyright (c) 2011 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_SYSTEM_WRAPPERS_SOURCE_EVENT_POSIX_H_
12 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_EVENT_POSIX_H_
13 
14 #include "webrtc/system_wrappers/include/event_wrapper.h"
15 
16 #include <pthread.h>
17 #include <time.h>
18 
19 #include "webrtc/base/platform_thread.h"
20 
21 namespace webrtc {
22 
23 enum State {
24   kUp = 1,
25   kDown = 2
26 };
27 
28 class EventTimerPosix : public EventTimerWrapper {
29  public:
30   EventTimerPosix();
31   ~EventTimerPosix() override;
32 
33   EventTypeWrapper Wait(unsigned long max_time) override;
34   bool Set() override;
35 
36   bool StartTimer(bool periodic, unsigned long time) override;
37   bool StopTimer() override;
38 
39  private:
40   static bool Run(void* obj);
41   bool Process();
42   EventTypeWrapper Wait(timespec* end_at);
43 
44  private:
45   pthread_cond_t  cond_;
46   pthread_mutex_t mutex_;
47   bool event_set_;
48 
49   // TODO(pbos): Remove scoped_ptr and use PlatformThread directly.
50   rtc::scoped_ptr<rtc::PlatformThread> timer_thread_;
51   rtc::scoped_ptr<EventTimerPosix> timer_event_;
52   timespec       created_at_;
53 
54   bool          periodic_;
55   unsigned long time_;  // In ms
56   unsigned long count_;
57 };
58 
59 }  // namespace webrtc
60 
61 #endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_EVENT_POSIX_H_
62