1 /* 2 * Copyright 2004 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 RTC_BASE_EVENT_H_ 12 #define RTC_BASE_EVENT_H_ 13 14 #include "rtc_base/constructormagic.h" 15 #if defined(WEBRTC_WIN) 16 #include "rtc_base/win32.h" // NOLINT: consider this a system header. 17 #elif defined(WEBRTC_POSIX) 18 #include <pthread.h> 19 #else 20 #error "Must define either WEBRTC_WIN or WEBRTC_POSIX." 21 #endif 22 23 namespace rtc { 24 25 class Event { 26 public: 27 static const int kForever = -1; 28 29 Event(bool manual_reset, bool initially_signaled); 30 ~Event(); 31 32 void Set(); 33 void Reset(); 34 35 // Wait for the event to become signaled, for the specified number of 36 // |milliseconds|. To wait indefinetly, pass kForever. 37 bool Wait(int milliseconds); 38 39 private: 40 #if defined(WEBRTC_WIN) 41 HANDLE event_handle_; 42 #elif defined(WEBRTC_POSIX) 43 pthread_mutex_t event_mutex_; 44 pthread_cond_t event_cond_; 45 const bool is_manual_reset_; 46 bool event_status_; 47 #endif 48 49 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(Event); 50 }; 51 52 } // namespace rtc 53 54 #endif // RTC_BASE_EVENT_H_ 55