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128 lines
2.6 KiB
C
128 lines
2.6 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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#include <assert.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <setjmp.h>
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/* Number of threads. */
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#define NTHREADS 10
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/* When set, threads exit. */
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volatile int break_out;
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pthread_barrier_t barrier;
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/* Entry point for threads that setjmp/longjmp. */
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static void *
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thread_longjmp (void *arg)
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{
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jmp_buf env;
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pthread_barrier_wait (&barrier);
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while (!break_out)
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{
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if (setjmp (env) == 0)
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longjmp (env, 1);
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usleep (1);
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}
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return NULL;
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}
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/* Entry point for threads that try/catch. */
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static void *
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thread_try_catch (void *arg)
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{
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volatile unsigned int counter = 0;
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pthread_barrier_wait (&barrier);
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while (!break_out)
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{
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try
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{
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throw 1;
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}
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catch (...)
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{
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counter++;
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}
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usleep (1);
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}
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return NULL;
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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 threads[NTHREADS];
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int i;
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int ret;
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/* Don't run forever. */
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alarm (180);
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pthread_barrier_init (&barrier, NULL, NTHREADS + 1);
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for (i = 0; i < NTHREADS; i++)
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{
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/* Half of the threads does setjmp/longjmp, the other half does
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try/catch. */
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if ((i % 2) == 0)
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ret = pthread_create (&threads[i], NULL, thread_longjmp , NULL);
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else
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ret = pthread_create (&threads[i], NULL, thread_try_catch , NULL);
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assert (ret == 0);
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}
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/* Wait until all threads are running. */
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pthread_barrier_wait (&barrier);
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#define LINE usleep (1)
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/* The other thread's setjmp/longjmp/try/catch should not disturb
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this thread's stepping over these lines. */
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LINE; /* set break here */
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LINE; /* line 1 */
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LINE; /* line 2 */
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LINE; /* line 3 */
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LINE; /* line 4 */
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LINE; /* line 5 */
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LINE; /* line 6 */
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LINE; /* line 7 */
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LINE; /* line 8 */
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LINE; /* line 9 */
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LINE; /* line 10 */
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break_out = 1;
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for (i = 0; i < NTHREADS; i++)
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{
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ret = pthread_join (threads[i], NULL);
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assert (ret == 0);
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}
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return 0;
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}
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