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/* Set the cancel state for the calling thread.
Copyright (C) 2002-2025 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/>. */
#include <pthread.h>
#include <shlib-compat.h>
#include <pt-internal.h>
int
__pthread_setcancelstate (int state, int *oldstate)
{
struct __pthread *p = _pthread_self ();
int cancelled;
switch (state)
{
default:
return EINVAL;
case PTHREAD_CANCEL_ENABLE:
case PTHREAD_CANCEL_DISABLE:
break;
}
__pthread_mutex_lock (&p->cancel_lock);
if (oldstate != NULL)
*oldstate = p->cancel_state;
p->cancel_state = state;
cancelled = (p->cancel_state == PTHREAD_CANCEL_ENABLE) && p->cancel_pending == 1 && (p->cancel_type == PTHREAD_CANCEL_ASYNCHRONOUS);
if (cancelled)
/* Do not achieve cancel when called again, notably from __pthread_exit itself. */
p->cancel_pending = 2;
__pthread_mutex_unlock (&p->cancel_lock);
if (cancelled && __pthread_exit)
__pthread_exit (PTHREAD_CANCELED);
return 0;
}
libc_hidden_def (__pthread_setcancelstate)
versioned_symbol (libc, __pthread_setcancelstate, pthread_setcancelstate, GLIBC_2_21);
#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_12, GLIBC_2_21)
compat_symbol (libc, __pthread_setcancelstate, pthread_setcancelstate, GLIBC_2_12);
#endif
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