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166 lines
3.4 KiB
C
166 lines
3.4 KiB
C
/* Copyright (C) 2002-2020 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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<https://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#define N 100
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static pthread_once_t once = PTHREAD_ONCE_INIT;
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static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
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static pthread_barrier_t bar;
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static int global;
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static int cl_called;
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static void
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once_handler1 (void)
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{
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if (pthread_mutex_lock (&mut) != 0)
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{
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puts ("once_handler1: mutex_lock failed");
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exit (1);
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}
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puts ("once_handler1: locked");
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int r = pthread_barrier_wait (&bar);
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if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("once_handler1: barrier_wait failed");
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exit (1);
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}
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puts ("once_handler1: going to wait on cond");
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pthread_cond_wait (&cond, &mut);
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/* We should never get here. */
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exit (42);
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}
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static void
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once_handler2 (void)
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{
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global = 1;
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}
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static void
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cl (void *arg)
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{
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cl_called = 1;
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}
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static void *
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tf (void *arg)
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{
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pthread_cleanup_push (cl, NULL)
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pthread_once (&once, once_handler1);
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pthread_cleanup_pop (0);
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/* We should never get here. */
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puts ("pthread_once in tf 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_barrier_init (&bar, NULL, 2) != 0)
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{
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puts ("barrier_init 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 ("first create failed");
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return 1;
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}
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int r = pthread_barrier_wait (&bar);
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if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("barrier_wait failed");
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return 1;
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}
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if (pthread_mutex_lock (&mut) != 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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/* We unlock the mutex so that we catch the case where the pthread_cond_wait
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call incorrectly resumes and tries to get the mutex. */
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if (pthread_mutex_unlock (&mut) != 0)
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{
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puts ("mutex_unlock failed");
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return 1;
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}
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/* Cancel the thread. */
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puts ("going to cancel");
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if (pthread_cancel (th) != 0)
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{
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puts ("cancel failed");
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return 1;
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}
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void *result;
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pthread_join (th, &result);
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if (result != PTHREAD_CANCELED)
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{
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puts ("join didn't return PTHREAD_CANCELED");
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return 1;
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}
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puts ("joined successfully");
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printf ("once = %d\n", *(int *) &once);
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if (cl_called != 1)
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{
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puts ("cleanup handler not called");
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return 1;
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}
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pthread_once (&once, once_handler2);
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if (global != 1)
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{
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puts ("global still 0");
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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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