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7e625f7e85
Before this change, several tests did not detect early deadlocks because they used SIGALRM as the expected signal, and they ran for the full default TIMEOUT seconds. This commit adds a new delayed_exit function to the test skeleton, along with several error-checking wrappers to pthread functions. Additional error checking is introduced into several tests.
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/* Copyright (C) 2002-2016 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>, 2002.
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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, see
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<http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
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static pthread_rwlock_t r;
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static void *
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tf (void *arg)
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{
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if (pthread_rwlock_wrlock (&r) == 0)
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{
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puts ("child: rwlock_wrlock succeeded");
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exit (1);
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}
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puts ("child: rwlock_wrlock returned");
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exit (1);
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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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pthread_t th;
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if (pthread_rwlock_init (&r, NULL) != 0)
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{
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puts ("rwlock_init failed");
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return 1;
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}
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if (pthread_rwlock_wrlock (&r) != 0)
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{
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puts ("rwlock_wrlock failed");
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return 1;
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}
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if (pthread_mutex_lock (&m) != 0)
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{
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puts ("mutex_lock failed");
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return 1;
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}
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if (pthread_create (&th, NULL, tf, NULL) != 0)
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{
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puts ("create failed");
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return 1;
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}
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delayed_exit (1);
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/* This call should never return. */
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xpthread_mutex_lock (&m);
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puts ("2nd mutex_lock returned");
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return 1;
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}
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