72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)wwchild.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
|
|
#include "ww.h"
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
void
|
|
wwchild()
|
|
{
|
|
extern errno;
|
|
int olderrno;
|
|
register struct ww **wp;
|
|
union wait w;
|
|
int pid;
|
|
char collected = 0;
|
|
|
|
olderrno = errno;
|
|
while ((pid =
|
|
wait3((int *)&w, WNOHANG|WUNTRACED, (struct rusage *)0)) > 0) {
|
|
for (wp = wwindex; wp < &wwindex[NWW]; wp++) {
|
|
if (*wp && (*wp)->ww_state == WWS_HASPROC
|
|
&& (*wp)->ww_pid == pid) {
|
|
(*wp)->ww_state = WWS_DEAD;
|
|
collected = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
errno = olderrno;
|
|
/* jump out of wwiomux when somebody dies */
|
|
if (collected)
|
|
wwsetintr();
|
|
}
|