1 /* 2 * libjingle 3 * Copyright 2004--2008, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_BASE_EVENT_H__ 29 #define TALK_BASE_EVENT_H__ 30 31 #if defined(WIN32) 32 #include "talk/base/win32.h" // NOLINT: consider this a system header. 33 #elif defined(POSIX) 34 #include <pthread.h> 35 #else 36 #error "Must define either WIN32 or POSIX." 37 #endif 38 39 #include "talk/base/basictypes.h" 40 41 namespace talk_base { 42 43 class Event { 44 public: 45 Event(bool manual_reset, bool initially_signaled); 46 ~Event(); 47 48 bool Set(); 49 bool Reset(); 50 bool Wait(int cms); 51 52 private: 53 bool EnsureInitialized(); 54 55 bool is_manual_reset_; 56 57 #if defined(WIN32) 58 bool is_initially_signaled_; 59 HANDLE event_handle_; 60 #elif defined(POSIX) 61 bool event_status_; 62 bool event_mutex_initialized_; 63 pthread_mutex_t event_mutex_; 64 bool event_cond_initialized_; 65 pthread_cond_t event_cond_; 66 #endif 67 }; 68 69 } // namespace talk_base 70 71 #endif // TALK_BASE_EVENT_H__ 72
