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/* Private libc-internal interface for mutex locks.
Copyright (C) 2015-2021 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; see the file COPYING.LIB. If
not, see <https://www.gnu.org/licenses/>. */
#ifndef _HTL_LIBC_LOCK_H
#define _HTL_LIBC_LOCK_H 1
#include_next <libc-lock.h>
#include <bits/cancelation.h>
#undef __libc_cleanup_region_start
#undef __libc_cleanup_region_end
#undef __libc_cleanup_end
#undef __libc_cleanup_push
#undef __libc_cleanup_pop
#define __libc_cleanup_region_start(DOIT, FCT, ARG) \
{ \
struct __pthread_cancelation_handler **__handlers = NULL; \
struct __pthread_cancelation_handler __handler; \
int __registered = 0; \
if (DOIT) \
{ \
__handler.__handler = FCT; \
__handler.__arg = ARG; \
if (__pthread_get_cleanup_stack != NULL) \
{ \
__handlers = __pthread_get_cleanup_stack (); \
__handler.__next = *__handlers; \
*__handlers = &__handler; \
__registered = 1; \
} \
} \
#define __libc_cleanup_end(DOIT) \
if (__registered) \
*__handlers = __handler.__next; \
if (DOIT) \
__handler.__handler (__handler.__arg); \
#define __libc_cleanup_region_end(DOIT) \
__libc_cleanup_end(DOIT) \
}
#define __libc_cleanup_push(fct, arg) __libc_cleanup_region_start (1, fct, arg)
#define __libc_cleanup_pop(execute) __libc_cleanup_region_end (execute)
#if !IS_IN (libpthread)
# ifdef weak_extern
weak_extern (__pthread_get_cleanup_stack)
# else
# pragma weak __pthread_get_cleanup_stack
# endif
#endif
#endif
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