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      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 #include "talk/base/common.h"
     41 
     42 namespace talk_base {
     43 
     44 class Event {
     45  public:
     46   Event(bool manual_reset, bool initially_signaled);
     47   ~Event();
     48 
     49   void Set();
     50   void Reset();
     51   bool Wait(int cms);
     52 
     53  private:
     54   bool is_manual_reset_;
     55 
     56 #if defined(WIN32)
     57   bool is_initially_signaled_;
     58   HANDLE event_handle_;
     59 #elif defined(POSIX)
     60   bool event_status_;
     61   pthread_mutex_t event_mutex_;
     62   pthread_cond_t event_cond_;
     63 #endif
     64 };
     65 
     66 }  // namespace talk_base
     67 
     68 #endif  // TALK_BASE_EVENT_H__
     69