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33574c17 | 1 | /* Cancelation. Generic version. |
6d7e8eda | 2 | Copyright (C) 2002-2023 Free Software Foundation, Inc. |
33574c17 ST |
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 | |
ad2b41bf ST |
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. | |
33574c17 ST |
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 | |
ad2b41bf | 13 | Lesser General Public License for more details. |
33574c17 | 14 | |
ad2b41bf ST |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
33574c17 ST |
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 */ |