mirror of git://sourceware.org/git/glibc.git
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/* Check if pthread_setcanceltype disables asynchronous cancellation
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once cancellation happens (BZ 32782)
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Copyright (C) 2025 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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/* The pthread_setcanceltype is a cancellation entrypoint, and if
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asynchronous is enabled and the cancellation starts (on the second
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pthread_setcanceltype call), the asynchronous should not restart
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the process. */
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#include <support/xthread.h>
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#define NITER 1000
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#define NTHREADS 8
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static void
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tf_cleanup (void *arg)
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{
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}
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static void *
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tf (void *closure)
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{
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pthread_cleanup_push (tf_cleanup, NULL);
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for (;;)
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{
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/* The only possible failure for pthread_setcanceltype is an
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invalid state type. */
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pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
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pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL);
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}
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pthread_cleanup_pop (1);
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return NULL;
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}
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static void
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poll_threads (int nthreads)
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{
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pthread_t thr[nthreads];
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for (int i = 0; i < nthreads; i++)
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thr[i] = xpthread_create (NULL, tf, NULL);
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for (int i = 0; i < nthreads; i++)
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xpthread_cancel (thr[i]);
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for (int i = 0; i < nthreads; i++)
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xpthread_join (thr[i]);
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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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for (int k = 0; k < NITER; k++)
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poll_threads (NTHREADS);
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return 0;
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}
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#include <support/test-driver.c>
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