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- /* This testcase is part of GDB, the GNU debugger.
- Copyright 2015-2022 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/>. */
- #define _GNU_SOURCE
- #include <unistd.h>
- #include <stdlib.h>
- #include <pthread.h>
- #include <assert.h>
- #define NUM_THREADS 3
- struct thread_data
- {
- const char *name;
- pthread_barrier_t *barrier;
- };
- static void *
- thread_func (void *varg)
- {
- struct thread_data *arg = (struct thread_data *) varg;
- int res;
- res = pthread_setname_np (pthread_self (), arg->name);
- assert (res == 0);
- pthread_barrier_wait (arg->barrier);
- pthread_barrier_wait (arg->barrier);
- return NULL;
- }
- static void
- all_threads_ready (void)
- {
- }
- int
- main (int argc, char **argv)
- {
- pthread_t threads[NUM_THREADS];
- struct thread_data args[NUM_THREADS];
- pthread_barrier_t barrier;
- int i, res;
- const char *names[] = { "carrot", "potato", "celery" };
- alarm (20);
- /* Make sure that NAMES contains NUM_THREADS elements. */
- assert (sizeof (names) / sizeof (names[0]) == NUM_THREADS);
- res = pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1);
- assert (res == 0);;
- res = pthread_setname_np (pthread_self (), "main");
- assert (res == 0);
- for (i = 0; i < NUM_THREADS; i++)
- {
- struct thread_data *arg = &args[i];
- arg->name = names[i];
- arg->barrier = &barrier;
- res = pthread_create (&threads[i], NULL, thread_func, arg);
- assert (res == 0);
- }
- pthread_barrier_wait (&barrier);
- all_threads_ready ();
- pthread_barrier_wait (&barrier);
- for (i = 0; i < NUM_THREADS; i++)
- {
- res = pthread_join (threads[i], NULL);
- assert (res == 0);
- }
- return 0;
- }
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