99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2014-2016 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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#include <stdio.h>
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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 <signal.h>
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pthread_barrier_t barrier;
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sig_atomic_t got_sigusr1;
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sig_atomic_t got_sigusr2;
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void
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handler_sigusr1 (int sig)
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{
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got_sigusr1 = 1;
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}
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void
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handler_sigusr2 (int sig)
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{
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got_sigusr2 = 1;
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}
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void *
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thread_function (void *arg)
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{
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volatile unsigned int count = 1;
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pthread_barrier_wait (&barrier);
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while (count++ != 0)
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{
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if (got_sigusr1 && got_sigusr2)
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break;
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usleep (1);
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}
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}
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void
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all_threads_started (void)
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{
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}
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void
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all_threads_signalled (void)
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{
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}
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void
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end (void)
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{
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}
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int
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main (void)
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{
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pthread_t child_thread[2];
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int i;
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signal (SIGUSR1, handler_sigusr1);
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signal (SIGUSR2, handler_sigusr2);
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for (i = 0; i < 2; i++)
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{
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pthread_barrier_init (&barrier, NULL, 2);
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pthread_create (&child_thread[i], NULL, thread_function, NULL);
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pthread_barrier_wait (&barrier);
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pthread_barrier_destroy (&barrier);
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}
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all_threads_started ();
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pthread_kill (child_thread[0], SIGUSR1);
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pthread_kill (child_thread[1], SIGUSR2);
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all_threads_signalled ();
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for (i = 0; i < 2; i++)
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pthread_join (child_thread[i], NULL);
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end ();
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return 0;
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}
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