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/* Cancelation. Generic version.
Copyright (C) 2002 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _BITS_CANCELATION_H
#define _BITS_CANCELATION_H 1
#include <assert.h>
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 = \
{ \
handler: (rt), \
arg: (rtarg), \
next: *__handlers \
}; \
*__handlers = &__handler;
#define __pthread_cleanup_pop(execute) \
if (execute) \
__handler.handler (__handler.arg); \
assert (*__handlers == &__handler); \
*__handlers = __handler.next; \
}
#endif /* _BITS_CANCELATION_H */
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