71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/* Private libc-internal interface for mutex locks.
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Copyright (C) 2015-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <https://www.gnu.org/licenses/>. */
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#ifndef _HTL_LIBC_LOCK_H
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#define _HTL_LIBC_LOCK_H 1
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#include_next <libc-lock.h>
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#include <bits/cancelation.h>
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#undef __libc_cleanup_region_start
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#undef __libc_cleanup_region_end
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#undef __libc_cleanup_end
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#undef __libc_cleanup_push
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#undef __libc_cleanup_pop
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#define __libc_cleanup_region_start(DOIT, FCT, ARG) \
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{ \
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struct __pthread_cancelation_handler **__handlers = NULL; \
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struct __pthread_cancelation_handler __handler; \
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int __registered = 0; \
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if (DOIT) \
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{ \
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__handler.__handler = FCT; \
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__handler.__arg = ARG; \
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if (__pthread_get_cleanup_stack != NULL) \
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{ \
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__handlers = __pthread_get_cleanup_stack (); \
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__handler.__next = *__handlers; \
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*__handlers = &__handler; \
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__registered = 1; \
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} \
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} \
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#define __libc_cleanup_end(DOIT) \
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if (__registered) \
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*__handlers = __handler.__next; \
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if (DOIT) \
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__handler.__handler (__handler.__arg); \
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#define __libc_cleanup_region_end(DOIT) \
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__libc_cleanup_end(DOIT) \
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}
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#define __libc_cleanup_push(fct, arg) __libc_cleanup_region_start (1, fct, arg)
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#define __libc_cleanup_pop(execute) __libc_cleanup_region_end (execute)
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#if !IS_IN (libpthread)
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# ifdef weak_extern
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weak_extern (__pthread_get_cleanup_stack)
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# else
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# pragma weak __pthread_get_cleanup_stack
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# endif
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#endif
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#endif
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