[dragonfly.git] / usr.bin / window / mloop.c

/*	@(#)mloop.c	8.1 (Berkeley) 6/6/93	*/
/*	$NetBSD: mloop.c,v 1.8 2003/08/07 11:17:27 agc Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/param.h>
#include <unistd.h>
#include "defs.h"

void
mloop(void)
{
	while (!quit) {
		if (incmd) {
			docmd();
		} else if (wwcurwin->ww_state != WWS_HASPROC) {
			if (!ISSET(wwcurwin->ww_uflags, WWU_KEEPOPEN))
				closewin(wwcurwin);
			setcmd(1);
			if (wwpeekc() == escapec)
				(void) wwgetc();
			error("Process died.");
		} else {
			struct ww *w = wwcurwin;
			char *p;
			int n;

			if (wwibp >= wwibq) {
				wwibp = wwibq = wwib;
				wwiomux();
			}
			for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec;
			     p++)
				;
			if ((n = p - wwibp) > 0) {
				if (w->ww_type != WWT_PTY &&
				    ISSET(w->ww_pflags, WWP_STOPPED))
					startwin(w);
#if defined(sun) && !defined(BSD)
				/* workaround for SunOS pty bug */
				while (--n >= 0)
					(void) write(w->ww_pty, wwibp++, 1);
#else
				(void) write(w->ww_pty, wwibp, n);
				wwibp = p;
#endif
			}
			if (wwpeekc() == escapec) {
				(void) wwgetc();
				setcmd(1);
			}
		}
	}
}
Commit	Line	Data
2c872e05	1	/* @(#)mloop.c 8.1 (Berkeley) 6/6/93 */
abecab39 SW	2	/* $NetBSD: mloop.c,v 1.8 2003/08/07 11:17:27 agc Exp $ */
abecab39 SW	3
984263bc MD	4	/*
	5	* Copyright (c) 1983, 1993
	6	* The Regents of the University of California. All rights reserved.
	7	*
	8	* This code is derived from software contributed to Berkeley by
	9	* Edward Wang at The University of California, Berkeley.
	10	*
	11	* Redistribution and use in source and binary forms, with or without
	12	* modification, are permitted provided that the following conditions
	13	* are met:
	14	* 1. Redistributions of source code must retain the above copyright
	15	* notice, this list of conditions and the following disclaimer.
	16	* 2. Redistributions in binary form must reproduce the above copyright
	17	* notice, this list of conditions and the following disclaimer in the
	18	* documentation and/or other materials provided with the distribution.
abecab39	19	* 3. Neither the name of the University nor the names of its contributors
984263bc MD	20	* may be used to endorse or promote products derived from this software
	21	* without specific prior written permission.
	22	*
	23	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	24	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	26	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	29	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	30	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	31	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	32	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	33	* SUCH DAMAGE.
	34	*/
	35
984263bc	36	#include <sys/param.h>
abecab39	37	#include <unistd.h>
984263bc MD	38	#include "defs.h"
984263bc MD	39
abecab39 SW	40	void
abecab39 SW	41	mloop(void)
984263bc MD	42	{
	43	while (!quit) {
	44	if (incmd) {
	45	docmd();
	46	} else if (wwcurwin->ww_state != WWS_HASPROC) {
abecab39	47	if (!ISSET(wwcurwin->ww_uflags, WWU_KEEPOPEN))
984263bc MD	48	closewin(wwcurwin);
	49	setcmd(1);
	50	if (wwpeekc() == escapec)
	51	(void) wwgetc();
	52	error("Process died.");
	53	} else {
abecab39 SW	54	struct ww *w = wwcurwin;
	55	char *p;
	56	int n;
984263bc	57
abecab39 SW	58	if (wwibp >= wwibq) {
abecab39 SW	59	wwibp = wwibq = wwib;
984263bc	60	wwiomux();
abecab39	61	}
984263bc MD	62	for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec;
	63	p++)
	64	;
	65	if ((n = p - wwibp) > 0) {
abecab39 SW	66	if (w->ww_type != WWT_PTY &&
abecab39 SW	67	ISSET(w->ww_pflags, WWP_STOPPED))
984263bc MD	68	startwin(w);
	69	#if defined(sun) && !defined(BSD)
	70	/* workaround for SunOS pty bug */
	71	while (--n >= 0)
	72	(void) write(w->ww_pty, wwibp++, 1);
	73	#else
	74	(void) write(w->ww_pty, wwibp, n);
	75	wwibp = p;
	76	#endif
	77	}
	78	if (wwpeekc() == escapec) {
	79	(void) wwgetc();
	80	setcmd(1);
	81	}
	82	}
	83	}
	84	}