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37c054c7c4
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S (pthread_barrier_wait): After wakeup, release lock only when the last thread stopped using the barrier object. * sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S (pthread_barrier_wait): Likewise. * sysdeps/pthread/pthread_barrier_wait.c (pthread_barrier_wait): Likewise. * Makefile (tests): Add tst-barrier4. * tst-barrier4.c: New file.
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
/* Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* This is a test for behavior not guaranteed by POSIX. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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static pthread_barrier_t b1;
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static pthread_barrier_t b2;
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#define N 20
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static void *
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tf (void *arg)
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{
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int round = 0;
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while (round++ < 30)
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{
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if (pthread_barrier_wait (&b1) == PTHREAD_BARRIER_SERIAL_THREAD)
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{
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pthread_barrier_destroy (&b1);
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if (pthread_barrier_init (&b1, NULL, N) != 0)
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{
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puts ("tf: 1st barrier_init failed");
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exit (1);
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}
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}
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if (pthread_barrier_wait (&b2) == PTHREAD_BARRIER_SERIAL_THREAD)
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{
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pthread_barrier_destroy (&b2);
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if (pthread_barrier_init (&b2, NULL, N) != 0)
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{
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puts ("tf: 2nd barrier_init failed");
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exit (1);
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}
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}
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}
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return NULL;
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}
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static int
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do_test (void)
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{
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int cnt;
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if (pthread_barrier_init (&b1, NULL, N) != 0)
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{
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puts ("1st barrier_init failed");
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return 1;
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}
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if (pthread_barrier_init (&b2, NULL, N) != 0)
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{
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puts ("2nd barrier_init failed");
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return 1;
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}
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pthread_t th[N - 1];
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for (cnt = 0; cnt < N - 1; ++cnt)
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if (pthread_create (&th[cnt], NULL, tf, NULL) != 0)
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{
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puts ("pthread_create failed");
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return 1;
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}
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tf (NULL);
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for (cnt = 0; cnt < N - 1; ++cnt)
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if (pthread_join (th[cnt], NULL) != 0)
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{
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puts ("pthread_join failed");
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return 1;
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}
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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