1 /*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37 #ifndef lint
38 static char sccsid[] = "@(#)mloop.c 8.1 (Berkeley) 6/6/93";
39 static char rcsid[] =
40 "$FreeBSD: head/usr.bin/window/mloop.c 76736 2001-05-17 09:38:49Z obrien $";
41 #endif /* not lint */
42
43 #include <sys/param.h>
44 #include "defs.h"
45
mloop()46 mloop()
47 {
48 while (!quit) {
49 if (incmd) {
50 docmd();
51 } else if (wwcurwin->ww_state != WWS_HASPROC) {
52 if (!wwcurwin->ww_keepopen)
53 closewin(wwcurwin);
54 setcmd(1);
55 if (wwpeekc() == escapec)
56 (void) wwgetc();
57 error("Process died.");
58 } else {
59 register struct ww *w = wwcurwin;
60 register char *p;
61 register n;
62
63 if (wwibp >= wwibq)
64 wwiomux();
65 for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec;
66 p++)
67 ;
68 if ((n = p - wwibp) > 0) {
69 if (!w->ww_ispty && w->ww_stopped)
70 startwin(w);
71 #if defined(sun) && !defined(BSD)
72 /* workaround for SunOS pty bug */
73 while (--n >= 0)
74 (void) write(w->ww_pty, wwibp++, 1);
75 #else
76 (void) write(w->ww_pty, wwibp, n);
77 wwibp = p;
78 #endif
79 }
80 if (wwpeekc() == escapec) {
81 (void) wwgetc();
82 setcmd(1);
83 }
84 }
85 }
86 }
87