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/interface/event_wrapper.h"
15
16#include <pthread.h>
17#include <time.h>
18
19#include "webrtc/system_wrappers/interface/thread_wrapper.h"
20
21namespace webrtc {
22
23enum State {
24  kUp = 1,
25  kDown = 2
26};
27
28class EventPosix : public EventWrapper {
29 public:
30  static EventWrapper* Create();
31
32  virtual ~EventPosix();
33
34  virtual EventTypeWrapper Wait(unsigned long max_time) OVERRIDE;
35  virtual bool Set() OVERRIDE;
36  virtual bool Reset() OVERRIDE;
37
38  virtual bool StartTimer(bool periodic, unsigned long time) OVERRIDE;
39  virtual bool StopTimer() OVERRIDE;
40
41 private:
42  EventPosix();
43  int Construct();
44
45  static bool Run(ThreadObj obj);
46  bool Process();
47  EventTypeWrapper Wait(timespec& wake_at);
48
49 private:
50  pthread_cond_t  cond_;
51  pthread_mutex_t mutex_;
52
53  ThreadWrapper* timer_thread_;
54  EventPosix*    timer_event_;
55  timespec       created_at_;
56
57  bool          periodic_;
58  unsigned long time_;  // In ms
59  unsigned long count_;
60  State         state_;
61};
62
63}  // namespace webrtc
64
65#endif  // WEBRTC_SYSTEM_WRAPPERS_SOURCE_EVENT_POSIX_H_
66