projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 28cb9295 | 1 | /* Thread package specific definitions of stream lock type. Generic version. |
| 6d7e8eda | 2 | Copyright (C) 2000-2023 Free Software Foundation, Inc. |
| b4e54243 RM |
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 | |
| 41bdb6e2 AJ |
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. | |
| b4e54243 RM |
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 | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| b4e54243 | 14 | |
| 41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 | 16 | License along with the GNU C Library; if not, see |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| b4e54243 | 18 | |
| 81503d1e JM |
19 | #ifndef _STDIO_LOCK_H |
| 20 | #define _STDIO_LOCK_H 1 | |
| b4e54243 | 21 | |
| ec999b8e | 22 | #include <libc-lock.h> |
| b4e54243 | 23 | |
| c12aa801 | 24 | __libc_lock_define_recursive (typedef, _IO_lock_t) |
| 17119915 | 25 | #define _IO_lock_t_defined 1 |
| b4e54243 RM |
26 | |
| 27 | /* We need recursive (counting) mutexes. */ | |
| 28cb9295 RM |
28 | #ifdef _LIBC_LOCK_RECURSIVE_INITIALIZER |
| 29 | # define _IO_lock_initializer _LIBC_LOCK_RECURSIVE_INITIALIZER | |
| 30 | #elif _IO_MTSAFE_IO | |
| 31 | #error libio needs recursive mutexes for _IO_MTSAFE_IO | |
| 32 | #endif | |
| b4e54243 | 33 | |
| c12aa801 RM |
34 | #define _IO_lock_init(_name) __libc_lock_init_recursive (_name) |
| 35 | #define _IO_lock_fini(_name) __libc_lock_fini_recursive (_name) | |
| 36 | #define _IO_lock_lock(_name) __libc_lock_lock_recursive (_name) | |
| 09efc3ba | 37 | #define _IO_lock_trylock(_name) __libc_lock_trylock_recursive (_name) |
| c12aa801 RM |
38 | #define _IO_lock_unlock(_name) __libc_lock_unlock_recursive (_name) |
| 39 | ||
| b4e54243 RM |
40 | |
| 41 | #define _IO_cleanup_region_start(_fct, _fp) \ | |
| 28cb9295 | 42 | __libc_cleanup_region_start (((_fp)->_flags & _IO_USER_LOCK) == 0, _fct, _fp) |
| 3afd9491 | 43 | #define _IO_cleanup_region_start_noarg(_fct) \ |
| 28cb9295 | 44 | __libc_cleanup_region_start (1, _fct, NULL) |
| b4e54243 | 45 | #define _IO_cleanup_region_end(_doit) \ |
| 28cb9295 | 46 | __libc_cleanup_region_end (_doit) |
| b4e54243 | 47 | |
| 4f41c682 | 48 | #if defined _LIBC && IS_IN (libc) |
| 2cf3e1aa ST |
49 | |
| 50 | # ifdef __EXCEPTIONS | |
| 0261d33f | 51 | # define _IO_acquire_lock(_fp) \ |
| 2cf3e1aa | 52 | do { \ |
| 9964a145 | 53 | FILE *_IO_acquire_lock_file \ |
| 2cf3e1aa ST |
54 | __attribute__((cleanup (_IO_acquire_lock_fct))) \ |
| 55 | = (_fp); \ | |
| 56 | _IO_flockfile (_IO_acquire_lock_file); | |
| 2cf3e1aa ST |
57 | # else |
| 58 | # define _IO_acquire_lock(_fp) _IO_acquire_lock_needs_exceptions_enabled | |
| 2cf3e1aa ST |
59 | # endif |
| 60 | # define _IO_release_lock(_fp) ; } while (0) | |
| 0261d33f | 61 | |
| 0261d33f | 62 | #endif |
| b4e54243 | 63 | |
| 81503d1e | 64 | #endif /* stdio-lock.h */ |