| 1 | /* Free data allocated by a call to setlocale_r |
|---|---|
| 2 | Copyright (C) 1996-2022 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 | #include <locale.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <libc-lock.h> |
| 22 | |
| 23 | #include "localeinfo.h" |
| 24 | |
| 25 | |
| 26 | /* Lock for protecting global data. */ |
| 27 | __libc_rwlock_define (extern , __libc_setlocale_lock attribute_hidden) |
| 28 | |
| 29 | |
| 30 | void |
| 31 | __freelocale (locale_t dataset) |
| 32 | { |
| 33 | int cnt; |
| 34 | |
| 35 | /* This static object is returned for newlocale (LC_ALL_MASK, "C"). */ |
| 36 | if (dataset == _nl_C_locobj_ptr) |
| 37 | return; |
| 38 | |
| 39 | /* We modify global data (the usage counts). */ |
| 40 | __libc_rwlock_wrlock (__libc_setlocale_lock); |
| 41 | |
| 42 | for (cnt = 0; cnt < __LC_LAST; ++cnt) |
| 43 | if (cnt != LC_ALL && dataset->__locales[cnt]->usage_count != UNDELETABLE) |
| 44 | /* We can remove the data. */ |
| 45 | _nl_remove_locale (locale: cnt, data: dataset->__locales[cnt]); |
| 46 | |
| 47 | /* It's done. */ |
| 48 | __libc_rwlock_unlock (__libc_setlocale_lock); |
| 49 | |
| 50 | /* Free the locale_t handle itself. */ |
| 51 | free (ptr: dataset); |
| 52 | } |
| 53 | weak_alias (__freelocale, freelocale) |
| 54 |