window(1): Remove __RCSID & friends.
[dragonfly.git] / usr.bin / window / wwchild.c
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2c872e05 1/* @(#)wwchild.c 8.1 (Berkeley) 6/6/93 */
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2/* $NetBSD: wwchild.c,v 1.8 2006/12/18 20:04:55 christos Exp $ */
3
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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
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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
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36#include <sys/types.h>
37#include <sys/wait.h>
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38#include <errno.h>
39#include "ww.h"
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40
41void
abecab39 42wwchild(int dummy __unused)
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43{
44 int olderrno;
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45 struct ww **wp;
46 int status;
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47 int pid;
48 char collected = 0;
49
50 olderrno = errno;
51 while ((pid =
abecab39 52 wait3(&status, WNOHANG|WUNTRACED, (struct rusage *)0)) > 0) {
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53 for (wp = wwindex; wp < &wwindex[NWW]; wp++) {
54 if (*wp && (*wp)->ww_state == WWS_HASPROC
55 && (*wp)->ww_pid == pid) {
56 (*wp)->ww_state = WWS_DEAD;
57 collected = 1;
58 break;
59 }
60 }
61 }
62 errno = olderrno;
63 /* jump out of wwiomux when somebody dies */
64 if (collected)
65 wwsetintr();
66}