4.3BSD - /usr/src/new/X/Xlib/XCloseDisplay.c

   1: #include <X/mit-copyright.h>
   2: 
   3: /* $Header: XCloseDisplay.c,v 10.4 86/02/01 15:30:31 tony Rel $ */
   4: /* Copyright    Massachusetts Institute of Technology    1985	*/
   5: 
   6: #include "XlibInternal.h"
   7: 
   8: /*
   9:  * XCloseDisplay - XSync the connection to the X Server, close the connection,
  10:  * and free all associated storage.  Signals must be masked out during this
  11:  * operation to guarantee atomicity.
  12:  */
  13: XCloseDisplay (dpy)
  14:     register Display *dpy;
  15: {
  16:     register int sig_mask;
  17: 
  18:     /*
  19: 	 * Mask out all signals so that the library internal state can
  20: 	 * be sync'ed with the rest of the world.  We don't want to be
  21: 	 * interupted while we are flushing and freeing buffers.
  22: 	 */
  23:     sig_mask = sigsetmask(-1);
  24:     XSync(TRUE);
  25:     if (close(dpy->fd) == -1) {
  26:         /* Argh! someone already closed the descriptor! */
  27:         _XIOError(_XlibCurrentDisplay);
  28:     }
  29:     sigsetmask(sig_mask);       /* Return signals to normal. */
  30:     if (dpy->displayname) free(dpy->displayname);
  31:     free(dpy->buffer);
  32:     free(dpy);
  33: }

Defined functions