Re: [Freeglut-developer] 100% CPU Utilisation on Win32

[Nigel S. a. F. S. <ni...@ni...>]

> Just in case it is lost in your mailbox:
> http://msdn.microsoft.com/library/en-us/dllproc/base/msgwaitformultipleobjects.asp 

This works for me on Win32, havn't tested the Unix/X11 path...

static void fgSleepForEvents( void )
{
     long msec;

     if (fgState.IdleCallback || fgHavePendingRedisplays())
         return;

     msec = fgNextTimer();
     if (fgHaveJoystick())
         msec = MIN(msec,10);    /* Assume joystick polling 0.01sec interval */

     msec = MIN(msec,100);       /* Limit sleep to 0.1sec */

#if TARGET_HOST_UNIX_X11
     {
         fd_set fdset;
         int err;
         int socket;
         struct timeval wait;

         socket = ConnectionNumber( fgDisplay.Display );
         FD_ZERO( &fdset );
         FD_SET( socket, &fdset );

         wait.tv_sec = msec / 1000;
         wait.tv_usec = (msec % 1000) * 1000;
         err = select( socket+1, &fdset, NULL, NULL, &wait );

         if( -1 == err )
             fgWarning("freeglut select() error: %d\n", errno);
     }
#elif TARGET_HOST_WIN32
     MsgWaitForMultipleObjects(0,NULL,FALSE,msec,QS_ALLEVENTS);
#endif
}