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/* This testcase is part of GDB, the GNU debugger.
Copyright 2014-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <pthread.h>
#include <signal.h>
pthread_barrier_t barrier;
sig_atomic_t got_sigusr1;
sig_atomic_t got_sigusr2;
void
handler_sigusr1 (int sig)
{
got_sigusr1 = 1;
}
void
handler_sigusr2 (int sig)
{
got_sigusr2 = 1;
}
void *
thread_function (void *arg)
{
volatile unsigned int count = 1;
pthread_barrier_wait (&barrier);
while (count++ != 0)
{
if (got_sigusr1 && got_sigusr2)
break;
usleep (1);
}
}
void
all_threads_started (void)
{
}
void
all_threads_signalled (void)
{
}
void
end (void)
{
}
int
main (void)
{
pthread_t child_thread[2];
int i;
signal (SIGUSR1, handler_sigusr1);
signal (SIGUSR2, handler_sigusr2);
for (i = 0; i < 2; i++)
{
pthread_barrier_init (&barrier, NULL, 2);
pthread_create (&child_thread[i], NULL, thread_function, NULL);
pthread_barrier_wait (&barrier);
pthread_barrier_destroy (&barrier);
}
all_threads_started ();
pthread_kill (child_thread[0], SIGUSR1);
pthread_kill (child_thread[1], SIGUSR2);
all_threads_signalled ();
for (i = 0; i < 2; i++)
pthread_join (child_thread[i], NULL);
end ();
return 0;
}
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