162 lines
3.1 KiB
C
162 lines
3.1 KiB
C
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <semaphore.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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static pthread_t receiver;
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static sem_t sem;
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static pthread_barrier_t b;
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static void
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handler (int sig)
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{
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if (sig != SIGUSR1)
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{
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write_message ("wrong signal\n");
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_exit (1);
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}
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if (pthread_self () != receiver)
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{
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write_message ("not the intended receiver\n");
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_exit (1);
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}
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if (sem_post (&sem) != 0)
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{
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write_message ("sem_post failed\n");
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_exit (1);
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}
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}
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static void *
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tf (void *a)
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{
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int e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("child: barrier_wait failed");
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exit (1);
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}
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return NULL;
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}
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int
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do_test (void)
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{
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struct sigaction sa;
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sigemptyset (&sa.sa_mask);
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sa.sa_flags = 0;
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sa.sa_handler = handler;
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if (sigaction (SIGUSR1, &sa, NULL) != 0)
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{
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puts ("sigaction failed");
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exit (1);
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}
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#define N 20
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if (pthread_barrier_init (&b, NULL, N + 1) != 0)
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{
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puts ("barrier_init failed");
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exit (1);
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}
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pthread_attr_t a;
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if (pthread_attr_init (&a) != 0)
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{
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puts ("attr_init failed");
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exit (1);
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}
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if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0)
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{
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puts ("attr_setstacksize failed");
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return 1;
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}
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pthread_t th[N];
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int i;
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for (i = 0; i < N; ++i)
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if (pthread_create (&th[i], &a, tf, NULL) != 0)
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{
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puts ("create failed");
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exit (1);
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}
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if (pthread_attr_destroy (&a) != 0)
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{
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puts ("attr_destroy failed");
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exit (1);
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}
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if (sem_init (&sem, 0, 0) != 0)
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{
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puts ("sem_init failed");
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exit (1);
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}
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for (i = 0; i < N * 10; ++i)
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{
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receiver = th[i % N];
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if (pthread_kill (receiver, SIGUSR1) != 0)
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{
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puts ("kill failed");
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exit (1);
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}
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if (TEMP_FAILURE_RETRY (sem_wait (&sem)) != 0)
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{
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puts ("sem_wait failed");
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exit (1);
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}
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}
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int e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("barrier_wait failed");
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exit (1);
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}
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for (i = 0; i < N; ++i)
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if (pthread_join (th[i], NULL) != 0)
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{
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puts ("join failed");
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exit (1);
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}
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return 0;
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}
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