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/* Cancelation. Generic version.
Copyright (C) 2002-2021 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/>. */
#ifndef _BITS_CANCELATION_H
#define _BITS_CANCELATION_H 1
struct __pthread_cancelation_handler
{
void (*__handler) (void *);
void *__arg;
struct __pthread_cancelation_handler *__next;
};
/* Returns the thread local location of the cleanup handler stack. */
struct __pthread_cancelation_handler **__pthread_get_cleanup_stack (void);
#define __pthread_cleanup_push(rt, rtarg) \
{ \
struct __pthread_cancelation_handler **__handlers \
= __pthread_get_cleanup_stack (); \
struct __pthread_cancelation_handler __handler = \
{ \
(rt), \
(rtarg), \
*__handlers \
}; \
*__handlers = &__handler;
#define __pthread_cleanup_pop(execute) \
if (execute) \
__handler.__handler (__handler.__arg); \
*__handlers = __handler.__next; \
}
#endif /* _BITS_CANCELATION_H */
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