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| 1 | /* Cancelation. Generic version. |
|---|---|
| 2 | Copyright (C) 2002-2022 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _BITS_CANCELATION_H |
| 20 | #define _BITS_CANCELATION_H 1 |
| 21 | |
| 22 | struct __pthread_cancelation_handler |
| 23 | { |
| 24 | void (*__handler) (void *); |
| 25 | void *__arg; |
| 26 | struct __pthread_cancelation_handler *__next; |
| 27 | }; |
| 28 | |
| 29 | /* Returns the thread local location of the cleanup handler stack. */ |
| 30 | struct __pthread_cancelation_handler **__pthread_get_cleanup_stack (void); |
| 31 | |
| 32 | #define __pthread_cleanup_push(rt, rtarg) \ |
| 33 | { \ |
| 34 | struct __pthread_cancelation_handler **__handlers \ |
| 35 | = __pthread_get_cleanup_stack (); \ |
| 36 | struct __pthread_cancelation_handler __handler = \ |
| 37 | { \ |
| 38 | (rt), \ |
| 39 | (rtarg), \ |
| 40 | *__handlers \ |
| 41 | }; \ |
| 42 | *__handlers = &__handler; |
| 43 | |
| 44 | #define __pthread_cleanup_pop(execute) \ |
| 45 | if (execute) \ |
| 46 | __handler.__handler (__handler.__arg); \ |
| 47 | *__handlers = __handler.__next; \ |
| 48 | } |
| 49 | |
| 50 | #endif /* _BITS_CANCELATION_H */ |
| 51 |
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