51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* Cancelation. Generic version.
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Copyright (C) 2002-2022 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
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License as published by the Free Software Foundation; either
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version 2.1 of the 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; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _BITS_CANCELATION_H
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#define _BITS_CANCELATION_H 1
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struct __pthread_cancelation_handler
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{
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void (*__handler) (void *);
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void *__arg;
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struct __pthread_cancelation_handler *__next;
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};
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/* Returns the thread local location of the cleanup handler stack. */
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struct __pthread_cancelation_handler **__pthread_get_cleanup_stack (void);
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#define __pthread_cleanup_push(rt, rtarg) \
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{ \
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struct __pthread_cancelation_handler **__handlers \
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= __pthread_get_cleanup_stack (); \
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struct __pthread_cancelation_handler __handler = \
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{ \
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(rt), \
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(rtarg), \
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*__handlers \
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}; \
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*__handlers = &__handler;
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#define __pthread_cleanup_pop(execute) \
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if (execute) \
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__handler.__handler (__handler.__arg); \
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*__handlers = __handler.__next; \
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}
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#endif /* _BITS_CANCELATION_H */
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