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From: garrity@garrity.applicon.UUCP
Newsgroups: comp.windows.x
Subject: X input & select
Message-ID: <45000002@garrity>
Date: Thu, 28-May-87 11:20:00 EDT
Article-I.D.: garrity.45000002
Posted: Thu May 28 11:20:00 1987
Date-Received: Tue, 2-Jun-87 01:21:52 EDT
Lines: 37
Nf-ID: #N:garrity:45000002:000:1187
Nf-From: garrity.applicon.UUCP!garrity    May 28 11:20:00 1987


  Is there any "correct" way to use select on X's input queue.  The only way
of obtaining input which I see documented is to call XNextEvent.  Down in the
bowels, this calls read on the display's fd.  I have an application which 
would like to sleep until there is input, OR another unrelated device is 
available for write.  In other words, I would like to do this.


done = 0;
while( !done )
{	read_mask  = 1<<dpy->fd;
	write_mask = 1<<other_fd;

	nfds = select(getdtablesize(),&readmask,&writemask,0,0);
	
	if( read_mask & 1<<dpy->fd )
		done = process_input();
	else
		done = process_output();
}

  Does anyone have any ideas?  I can obviously hack something up, but it would
be awfully nice if it was somewhere in the neighborhood of "standard X".

--                                           
-- Mike Garrity
--
-- Asking is just polite demanding.
--                           Max Headroom
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