minix/tests/lib/libc/sys/t_timer_create.c

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/* $NetBSD: t_timer_create.c,v 1.4 2012/03/18 07:00:52 jruoho Exp $ */
/*-
* Copyright (c) 2010 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 <atf-c.h>
#include <errno.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
static timer_t t;
static bool fail = true;
static void
timer_signal_handler(int signo, siginfo_t *si, void *osi)
{
timer_t *tp;
tp = si->si_value.sival_ptr;
if (*tp == t && signo == SIGALRM)
fail = false;
(void)fprintf(stderr, "%s: %s\n", __func__, strsignal(signo));
}
static void
timer_signal_create(clockid_t cid, bool expire)
{
struct itimerspec tim;
struct sigaction act;
struct sigevent evt;
sigset_t set;
t = 0;
fail = true;
(void)memset(&evt, 0, sizeof(struct sigevent));
(void)memset(&act, 0, sizeof(struct sigaction));
(void)memset(&tim, 0, sizeof(struct itimerspec));
/*
* Set handler.
*/
act.sa_flags = SA_SIGINFO;
act.sa_sigaction = timer_signal_handler;
ATF_REQUIRE(sigemptyset(&set) == 0);
ATF_REQUIRE(sigemptyset(&act.sa_mask) == 0);
/*
* Block SIGALRM while configuring the timer.
*/
ATF_REQUIRE(sigaction(SIGALRM, &act, NULL) == 0);
ATF_REQUIRE(sigaddset(&set, SIGALRM) == 0);
ATF_REQUIRE(sigprocmask(SIG_SETMASK, &set, NULL) == 0);
/*
* Create the timer (SIGEV_SIGNAL).
*/
evt.sigev_signo = SIGALRM;
evt.sigev_value.sival_ptr = &t;
evt.sigev_notify = SIGEV_SIGNAL;
ATF_REQUIRE(timer_create(cid, &evt, &t) == 0);
/*
* Start the timer. After this, unblock the signal.
*/
tim.it_value.tv_sec = expire ? 5 : 1;
tim.it_value.tv_nsec = 0;
ATF_REQUIRE(timer_settime(t, 0, &tim, NULL) == 0);
(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
(void)sleep(2);
if (expire) {
if (!fail)
atf_tc_fail("timer fired too soon");
} else {
if (fail)
atf_tc_fail("timer failed to fire");
}
ATF_REQUIRE(timer_delete(t) == 0);
}
ATF_TC(timer_create_err);
ATF_TC_HEAD(timer_create_err, tc)
{
atf_tc_set_md_var(tc, "descr",
"Check errors from timer_create(2) (PR lib/42434");
}
ATF_TC_BODY(timer_create_err, tc)
{
struct sigevent ev;
(void)memset(&ev, 0, sizeof(struct sigevent));
errno = 0;
ev.sigev_signo = -1;
ev.sigev_notify = SIGEV_SIGNAL;
ATF_REQUIRE_ERRNO(EINVAL, timer_create(CLOCK_REALTIME, &ev, &t) == -1);
errno = 0;
ev.sigev_signo = SIGUSR1;
ev.sigev_notify = SIGEV_THREAD + 100;
ATF_REQUIRE_ERRNO(EINVAL, timer_create(CLOCK_REALTIME, &ev, &t) == -1);
}
ATF_TC(timer_create_real);
ATF_TC_HEAD(timer_create_real, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks timer_create(2) with CLOCK_REALTIME and sigevent(3), "
"SIGEV_SIGNAL");
}
ATF_TC_BODY(timer_create_real, tc)
{
timer_signal_create(CLOCK_REALTIME, false);
}
ATF_TC(timer_create_mono);
ATF_TC_HEAD(timer_create_mono, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks timer_create(2) with CLOCK_MONOTONIC and sigevent(3), "
"SIGEV_SIGNAL");
}
ATF_TC_BODY(timer_create_mono, tc)
{
timer_signal_create(CLOCK_MONOTONIC, false);
}
ATF_TC(timer_create_real_expire);
ATF_TC_HEAD(timer_create_real_expire, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks timer_create(2) with CLOCK_REALTIME and sigevent(3), "
"SIGEV_SIGNAL, with expiration");
}
ATF_TC_BODY(timer_create_real_expire, tc)
{
timer_signal_create(CLOCK_REALTIME, true);
}
ATF_TC(timer_create_mono_expire);
ATF_TC_HEAD(timer_create_mono_expire, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks timer_create(2) with CLOCK_MONOTONIC and sigevent(3), "
"SIGEV_SIGNAL, with expiration");
}
ATF_TC_BODY(timer_create_mono_expire, tc)
{
timer_signal_create(CLOCK_MONOTONIC, true);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, timer_create_err);
ATF_TP_ADD_TC(tp, timer_create_real);
ATF_TP_ADD_TC(tp, timer_create_mono);
ATF_TP_ADD_TC(tp, timer_create_real_expire);
ATF_TP_ADD_TC(tp, timer_create_mono_expire);
return atf_no_error();
}