一个定时器模型

最新推荐文章于 2024-10-14 14:38:43 发布

原创最新推荐文章于 2024-10-14 14:38:43 发布 · 833 阅读

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#integer #timer #null #signal #thread

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TCHAR           szError[255];
 HANDLE          hTimer;
 __int64         qwDueTime;
 LARGE_INTEGER   liDueTime; 
 /* ResvTimer */
 
 if ( hTimer = CreateWaitableTimer(NULL, FALSE,"recvtimeTimer" ) )           
 {
  // Create an integer that will be used to signal the timer 
  // 2 seconds from now.
  qwDueTime = (-2) * _SECOND;  
  // Copy the relative time into a LARGE_INTEGER.
  liDueTime.LowPart  = (DWORD) ( qwDueTime & 0xFFFFFFFF );
  liDueTime.HighPart = (LONG)  ( qwDueTime >> 32 );
  if (SetWaitableTimer(hTimer,&liDueTime,60000,RecvTimerProc,NULL,FALSE))
  {
   TRACE("Called the RecvTimerProc to set local time ./n");
   while (RunFlag)
   { 
    SleepEx(INFINITE,/* Wait forever*/TRUE /* Put thread in an alertable state*/);
   }
  }
  else
  {
   wsprintf( szError, "SetWaitableTimer failed with Error %d.", GetLastError() );
   MessageBox( NULL, szError, "Error", MB_ICONEXCLAMATION );
  }  
  CloseHandle( hTimer ); // END of timer
 }