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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright 2024 The FreeBSD Foundation
*
* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
* under sponsorship from the FreeBSD Foundation.
*
* 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 AUTHOR 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 AUTHOR 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 <err.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#define NTHREADS 330
static int value[NTHREADS];
static pthread_t thr[NTHREADS];
static pthread_barrier_t barrier;
static void
handler(int signo __unused, siginfo_t *info, void *data __unused)
{
pthread_t self;
int i;
/*
* Formally this is thread-unsafe but we know context from
* where the signal is sent.
*/
self = pthread_self();
for (i = 0; i < NTHREADS; i++) {
if (pthread_equal(self, thr[i])) {
value[i] = info->si_value.sival_int;
pthread_exit(NULL);
}
}
}
static void *
threadfunc(void *arg __unused)
{
pthread_barrier_wait(&barrier);
for (;;)
pause();
}
ATF_TC(pthread_sigqueue);
ATF_TC_HEAD(pthread_sigqueue, tc)
{
atf_tc_set_md_var(tc, "descr",
"Checks pthread_sigqueue(3) sigval delivery");
}
ATF_TC_BODY(pthread_sigqueue, tc)
{
struct sigaction sa;
union sigval sv;
int error, i;
error = pthread_barrier_init(&barrier, NULL, NTHREADS + 1);
ATF_REQUIRE_EQ(0, error);
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
if (sigaction(SIGUSR1, &sa, NULL) != 0)
atf_tc_fail("sigaction failed");
memset(&sv, 0, sizeof(sv));
for (i = 0; i < NTHREADS; i++) {
error = pthread_create(&thr[i], NULL, threadfunc, NULL);
ATF_REQUIRE_EQ(0, error);
}
error = pthread_barrier_wait(&barrier);
ATF_REQUIRE(error == 0 || error == PTHREAD_BARRIER_SERIAL_THREAD);
for (i = 0; i < NTHREADS; i++) {
sv.sival_int = i + 1000;
error = pthread_sigqueue(thr[i], SIGUSR1, sv);
ATF_REQUIRE_EQ(0, error);
error = pthread_join(thr[i], NULL);
ATF_REQUIRE_EQ(0, error);
}
for (i = 0; i < NTHREADS; i++)
ATF_REQUIRE_EQ(i + 1000, value[i]);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, pthread_sigqueue);
return atf_no_error();
}
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