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/* Check if pthread_setcanceltype disables asynchronous cancellation
once cancellation happens (BZ 32782)
Copyright (C) 2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* The pthread_setcanceltype is a cancellation entrypoint, and if
asynchronous is enabled and the cancellation starts (on the second
pthread_setcanceltype call), the asynchronous should not restart
the process. */
#include <support/xthread.h>
#define NITER 1000
#define NTHREADS 8
static void
tf_cleanup (void *arg)
{
}
static void *
tf (void *closure)
{
pthread_cleanup_push (tf_cleanup, NULL);
for (;;)
{
/* The only possible failure for pthread_setcanceltype is an
invalid state type. */
pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL);
}
pthread_cleanup_pop (1);
return NULL;
}
static void
poll_threads (int nthreads)
{
pthread_t thr[nthreads];
for (int i = 0; i < nthreads; i++)
thr[i] = xpthread_create (NULL, tf, NULL);
for (int i = 0; i < nthreads; i++)
xpthread_cancel (thr[i]);
for (int i = 0; i < nthreads; i++)
xpthread_join (thr[i]);
}
static int
do_test (void)
{
for (int k = 0; k < NITER; k++)
poll_threads (NTHREADS);
return 0;
}
#include <support/test-driver.c>
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