ndet_wait.c

操作系统SunOS 4.1.3版本的源码

#ifndef	lint
#ifdef sccs
static	char sccsid[] = "@(#)ndet_wait.c 1.1 92/07/30 Copyr 1985 Sun Micro";
#endif
#endif

/*
 * Copyright (c) 1985 by Sun Microsystems, Inc.
 */

/*
 * Ndet_wait.c - Implement wait3 specific calls.
 */

#include <sunwindow/ntfy.h>
#include <sunwindow/ndet.h>
#include <errno.h>

extern	errno;

pkg_private int
ndet_check_pid(pid)
	int pid;
{
	if (kill(pid, 0)) {
		ntfy_set_errno((errno == ESRCH)? NOTIFY_SRCH: NOTIFY_INVAL);
		return(-1);
	}
	return(0);
}