142 lines
3.1 KiB
C
142 lines
3.1 KiB
C
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 <unistd.h>
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static pthread_barrier_t bar;
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static int global;
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static void
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cleanup (void *arg)
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{
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global = 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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/* Enable cancellation, but defer it. */
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if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)
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{
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puts ("setcancelstate failed");
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exit (1);
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}
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if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0)
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{
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puts ("setcanceltype failed");
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exit (1);
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}
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/* Add cleanup handler. */
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pthread_cleanup_push (cleanup, NULL);
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/* Synchronize with the main thread. */
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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 ("tf: first barrier_wait failed");
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exit (1);
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}
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/* And again. Once this is done the main thread should have canceled
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this thread. */
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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 ("tf: second barrier_wait failed");
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exit (1);
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}
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/* Remove the cleanup handler without executing it. */
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pthread_cleanup_pop (0);
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/* Now react on the cancellation. */
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pthread_testcancel ();
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/* This call should never return. */
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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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if (pthread_barrier_init (&bar, NULL, 2) != 0)
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{
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puts ("barrier_init failed");
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exit (1);
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}
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pthread_t th;
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if (pthread_create (&th, 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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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 ("first barrier_wait failed");
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exit (1);
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}
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if (pthread_cancel (th) != 0)
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{
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puts ("pthread_cancel failed");
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return 1;
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}
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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 ("second barrier_wait failed");
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exit (1);
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}
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void *result;
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if (pthread_join (th, &result) != 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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if (result != PTHREAD_CANCELED)
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{
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puts ("thread was not canceled");
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exit (1);
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}
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if (global != 0)
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{
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puts ("cancellation handler has been called");
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exit (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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