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[unix-history] / usr / src / usr.bin / window / wwchild.c

#ifndef lint
static char sccsid[] = "@(#)wwchild.c	3.6 %G%";
#endif

/*
 * Copyright (c) 1983 Regents of the University of California,
 * All rights reserved.  Redistribution permitted subject to
 * the terms of the Berkeley Software License Agreement.
 */

#include "ww.h"
#include <sys/types.h>
#include <sys/wait.h>

wwchild()
{
	extern errno;
	int olderrno;
	register struct ww **wp;
	union wait w;
	int pid;

	olderrno = errno;
	while ((pid = wait3(&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;
				break;
			}
		}
	}
	errno = olderrno;
}