149 lines
3.4 KiB
C
149 lines
3.4 KiB
C
/* $NetBSD: t_poll3w.c,v 1.1 2009/02/20 21:39:57 jmmv Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__COPYRIGHT("@(#) Copyright (c) 2008\
|
|
The NetBSD Foundation, inc. All rights reserved.");
|
|
__RCSID("$NetBSD: t_poll3w.c,v 1.1 2009/02/20 21:39:57 jmmv Exp $");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <poll.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <atf-c.h>
|
|
|
|
#include "../h_macros.h"
|
|
|
|
int desc;
|
|
|
|
static void
|
|
child1(void)
|
|
{
|
|
struct pollfd pfd;
|
|
|
|
pfd.fd = desc;
|
|
pfd.events = POLLIN | POLLHUP | POLLOUT;
|
|
|
|
(void)poll(&pfd, 1, 2000);
|
|
(void)printf("child1 exit\n");
|
|
}
|
|
|
|
static void
|
|
child2(void)
|
|
{
|
|
struct pollfd pfd;
|
|
|
|
pfd.fd = desc;
|
|
pfd.events = POLLIN | POLLHUP | POLLOUT;
|
|
|
|
(void)sleep(1);
|
|
(void)poll(&pfd, 1, INFTIM);
|
|
(void)printf("child2 exit\n");
|
|
}
|
|
|
|
static void
|
|
child3(void)
|
|
{
|
|
struct pollfd pfd;
|
|
|
|
(void)sleep(5);
|
|
|
|
pfd.fd = desc;
|
|
pfd.events = POLLIN | POLLHUP | POLLOUT;
|
|
|
|
(void)poll(&pfd, 1, INFTIM);
|
|
(void)printf("child3 exit\n");
|
|
}
|
|
|
|
ATF_TC(poll);
|
|
ATF_TC_HEAD(poll, tc)
|
|
{
|
|
atf_tc_set_md_var(tc, "timeout", "15");
|
|
atf_tc_set_md_var(tc, "descr",
|
|
"Check for 3-way collision for descriptor. First child comes "
|
|
"and polls on descriptor, second child comes and polls, first "
|
|
"child times out and exits, third child comes and polls. When "
|
|
"the wakeup event happens, the two remaining children should "
|
|
"both be awaken. (kern/17517)");
|
|
}
|
|
ATF_TC_BODY(poll, tc)
|
|
{
|
|
int pf[2];
|
|
int status, i;
|
|
pid_t pid;
|
|
|
|
pipe(pf);
|
|
desc = pf[0];
|
|
|
|
RL((pid = fork()));
|
|
if (pid == 0) {
|
|
(void)close(pf[1]);
|
|
child1();
|
|
_exit(0);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
RL((pid = fork()));
|
|
if (pid == 0) {
|
|
(void)close(pf[1]);
|
|
child2();
|
|
_exit(0);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
RL((pid = fork()));
|
|
if (pid == 0) {
|
|
(void)close(pf[1]);
|
|
child3();
|
|
_exit(0);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
(void)sleep(10);
|
|
|
|
(void)printf("parent write\n");
|
|
|
|
RL(write(pf[1], "konec\n", 6));
|
|
|
|
for(i = 0; i < 3; ++i)
|
|
RL(wait(&status));
|
|
|
|
(void)printf("parent terminated\n");
|
|
}
|
|
|
|
ATF_TP_ADD_TCS(tp)
|
|
{
|
|
ATF_TP_ADD_TC(tp, poll);
|
|
|
|
return atf_no_error();
|
|
}
|