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76fe4ef4 | 1 | /* Thread package specific definitions of stream lock type. Hurd version. |
6d7e8eda | 2 | Copyright (C) 2000-2023 Free Software Foundation, Inc. |
76fe4ef4 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 | |
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 _STDIO_LOCK_H | |
20 | #define _STDIO_LOCK_H 1 | |
21 | ||
22 | #include <libc-lock.h> | |
23 | ||
24 | __libc_lock_define_recursive (typedef, _IO_lock_t) | |
25 | #define _IO_lock_t_defined 1 | |
26 | ||
27 | /* We need recursive (counting) mutexes. */ | |
28 | # define _IO_lock_initializer _LIBC_LOCK_RECURSIVE_INITIALIZER | |
29 | ||
30 | #define _IO_lock_init(_name) __libc_lock_init_recursive (_name) | |
31 | #define _IO_lock_fini(_name) __libc_lock_fini_recursive (_name) | |
32 | #define _IO_lock_lock(_name) __libc_lock_lock_recursive (_name) | |
33 | #define _IO_lock_trylock(_name) __libc_lock_trylock_recursive (_name) | |
34 | #define _IO_lock_unlock(_name) __libc_lock_unlock_recursive (_name) | |
35 | ||
36 | ||
37 | #define _IO_cleanup_region_start(_fct, _fp) \ | |
38 | __libc_cleanup_region_start (((_fp)->_flags & _IO_USER_LOCK) == 0, _fct, _fp) | |
39 | #define _IO_cleanup_region_start_noarg(_fct) \ | |
40 | __libc_cleanup_region_start (1, _fct, NULL) | |
41 | #define _IO_cleanup_region_end(_doit) \ | |
42 | __libc_cleanup_region_end (_doit) | |
43 | ||
44 | #if defined _LIBC && IS_IN (libc) | |
45 | ||
46 | # define _IO_acquire_lock(_fp) \ | |
47 | do { \ | |
48 | _IO_cleanup_region_start((void (*) (void *)) &_IO_funlockfile, _fp); \ | |
49 | _IO_flockfile (_fp); | |
50 | # define _IO_release_lock(_fp) \ | |
51 | _IO_funlockfile (_fp); \ | |
52 | _IO_cleanup_region_end (0); \ | |
53 | } while (0) | |
54 | ||
55 | #endif | |
56 | ||
57 | #endif /* stdio-lock.h */ |