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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.
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/* Copyright (C) 2003-2016 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>, 2003.
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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 <errno.h>
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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 <string.h>
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#include <sys/time.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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#include "eintr.c"
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static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
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static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
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static void *
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tf1 (void *arg)
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{
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struct timespec ts;
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struct timeval tv;
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gettimeofday (&tv, NULL);
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_sec += 10000;
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/* This call must never return. */
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int e = pthread_mutex_timedlock (&m1, &ts);
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char buf[100];
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printf ("tf1: mutex_timedlock returned: %s\n",
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strerror_r (e, buf, sizeof (buf)));
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exit (1);
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}
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static void *
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tf2 (void *arg)
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{
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while (1)
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{
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int e = pthread_mutex_lock (&m2);
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if (e != 0)
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{
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puts ("tf2: mutex_lock failed");
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exit (1);
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}
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e = pthread_mutex_unlock (&m2);
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if (e != 0)
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{
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puts ("tf2: mutex_unlock failed");
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exit (1);
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}
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struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
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nanosleep (&ts, NULL);
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}
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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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if (pthread_mutex_lock (&m1) != 0)
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{
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puts ("mutex_lock failed");
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exit (1);
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}
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setup_eintr (SIGUSR1, NULL);
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pthread_t th;
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char buf[100];
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int e = pthread_create (&th, NULL, tf1, NULL);
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if (e != 0)
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{
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printf ("main: 1st pthread_create failed: %s\n",
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strerror_r (e, buf, sizeof (buf)));
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exit (1);
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}
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e = pthread_create (&th, NULL, tf2, NULL);
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if (e != 0)
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{
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printf ("main: 2nd pthread_create failed: %s\n",
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strerror_r (e, buf, sizeof (buf)));
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exit (1);
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}
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delayed_exit (3);
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/* This call must never return. */
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e = pthread_mutex_lock (&m1);
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printf ("main: mutex_lock returned: %s\n",
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strerror_r (e, buf, sizeof (buf)));
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return 1;
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}
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