xref: /csrg-svn/usr.bin/window/mloop.c (revision 33514)

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of California at Berkeley. The name of the University
 * may not be used to endorse or promote products derived from this
 * software without specific prior written permission. This software
 * is provided ``as is'' without express or implied warranty.
 */

#ifndef lint
static char sccsid[] = "@(#)mloop.c	3.10 (Berkeley) 02/21/88";
#endif /* not lint */

#include "defs.h"

mloop()
{
	wwrint();		/* catch typeahead before we set ASYNC */
	while (!quit) {
		if (incmd) {
			docmd();
		} else if (wwcurwin->ww_state != WWS_HASPROC) {
			if (!wwcurwin->ww_keepopen)
				closewin(wwcurwin);
			setcmd(1);
			if (wwpeekc() == escapec)
				(void) wwgetc();
			error("Process died.");
		} else {
			register struct ww *w = wwcurwin;
			register char *p;
			register n;

			wwiomux();
			if (wwibp < wwibq) {
				for (p = wwibp; p < wwibq && *p != escapec;
				     p++)
					;
				if ((n = p - wwibp) > 0) {
					if (!w->ww_ispty && w->ww_stopped)
						startwin(w);
					(void) write(w->ww_pty, wwibp, n);
					wwibp = p;
				}
				if (wwpeekc() == escapec) {
					(void) wwgetc();
					setcmd(1);
				}
			}
		}
	}
}