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98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2015-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#define _GNU_SOURCE
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#include <unistd.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <assert.h>
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#define NUM_THREADS 3
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struct thread_data
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{
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const char *name;
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pthread_barrier_t *barrier;
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};
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static void *
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thread_func (void *varg)
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{
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struct thread_data *arg = (struct thread_data *) varg;
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int res;
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res = pthread_setname_np (pthread_self (), arg->name);
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assert (res == 0);
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pthread_barrier_wait (arg->barrier);
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pthread_barrier_wait (arg->barrier);
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return NULL;
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}
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static void
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all_threads_ready (void)
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{
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}
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int
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main (int argc, char **argv)
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{
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pthread_t threads[NUM_THREADS];
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struct thread_data args[NUM_THREADS];
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pthread_barrier_t barrier;
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int i, res;
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const char *names[] = { "carrot", "potato", "celery" };
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alarm (20);
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/* Make sure that NAMES contains NUM_THREADS elements. */
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assert (sizeof (names) / sizeof (names[0]) == NUM_THREADS);
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res = pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1);
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assert (res == 0);;
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res = pthread_setname_np (pthread_self (), "main");
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assert (res == 0);
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for (i = 0; i < NUM_THREADS; i++)
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{
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struct thread_data *arg = &args[i];
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arg->name = names[i];
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arg->barrier = &barrier;
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res = pthread_create (&threads[i], NULL, thread_func, arg);
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assert (res == 0);
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}
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pthread_barrier_wait (&barrier);
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all_threads_ready ();
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pthread_barrier_wait (&barrier);
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for (i = 0; i < NUM_THREADS; i++)
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{
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res = pthread_join (threads[i], NULL);
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assert (res == 0);
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}
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return 0;
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}
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