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/* Test pthread_kill.c.
Copyright (C) 2000-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#define _GNU_SOURCE
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <assert.h>
#include <error.h>
#include <errno.h>
#include <hurd/signal.h>
pthread_t testthread;
int i;
void *
test (void *arg)
{
error_t err;
printf ("test: %d\n", pthread_self ());
err = pthread_kill (pthread_self (), SIGINFO);
if (err)
error (1, err, "pthread_kill");
/* To avoid using condition variables in a signal handler. */
while (i == 0)
sched_yield ();
return 0;
}
static void
handler (int sig)
{
assert (pthread_equal (pthread_self (), testthread));
printf ("handler: %d\n", pthread_self ());
i = 1;
}
int
main (int argc, char **argv)
{
error_t err;
struct sigaction sa;
void *ret;
printf ("main: %d\n", pthread_self ());
sa.sa_handler = handler;
sa.sa_mask = 0;
sa.sa_flags = 0;
err = sigaction (SIGINFO, &sa, 0);
if (err)
error (1, err, "sigaction");
err = pthread_create (&testthread, 0, test, 0);
if (err)
error (1, err, "pthread_create");
err = pthread_join (testthread, &ret);
if (err)
error (1, err, "pthread_join");
assert (ret == 0);
return 0;
}
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