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/* $OpenBSD: kqueue.c,v 1.1 2010/08/04 06:05:26 guenther Exp $ */
/*
* Written by Philip Guenther <guenther@openbsd.org>, 2010 Public Domain.
*
* Verify that having a process exit while it has knotes attached to it
* that are from a kqueue that is open in another process doesn't cause
* problems.
*/
#include <sys/param.h>
#include <sys/event.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <err.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int
main(int argc, char *argv[])
{
struct kevent ev;
int status;
int kq;
if ((kq = kqueue()) < 0)
err(1, "kqueue");
signal(SIGINT, SIG_IGN);
EV_SET(&ev, SIGINT, EVFILT_SIGNAL, EV_ADD|EV_ENABLE, 0, 0, 0);
switch(rfork(RFPROC)) {
case -1:
err(1, "rfork");
case 0:
if (kevent(kq, &ev, 1, NULL, 0, NULL))
err(1, "kevent");
raise(SIGINT);
_exit(0);
}
if (wait(&status) < 0)
err(1, "wait");
if (!WIFEXITED(status))
err(1, "child error");
return WEXITSTATUS(status) != 0;
}
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