Function event_loop

demos/glthreads.c:371–419

* The main process thread runs this loop. * Single display connection for all threads. */

 * Single display connection for all threads.
 */
static void
event_loop(Display *dpy)
{
   XEvent event;
   int i;

   assert(!MultiDisplays);

   while (!ExitFlag) {

      while (1) {
         int k;
         LOCK(dpy);
         k = XPending(dpy);
         if (k) {
            XNextEvent(dpy, &event);
            UNLOCK(dpy);
            break;
         }
         UNLOCK(dpy);
         usleep(5000);
      }

      switch (event.type) {
         case ConfigureNotify:
            /* Find winthread for this event's window */
            for (i = 0; i < NumWinThreads; i++) {
               struct winthread *wt = &WinThreads[i];
               if (event.xconfigure.window == wt->Win) {
                  resize(wt, event.xconfigure.width,
                         event.xconfigure.height);
                  break;
               }
            }
            break;
         case KeyPress:
            for (i = 0; i < NumWinThreads; i++) {
               struct winthread *wt = &WinThreads[i];
               if (event.xkey.window == wt->Win) {
                  keypress(&event, wt);
                  break;
               }
            }
            break;
         default:
            /*no-op*/ ;
      }
   }
}


/*