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. */ __libc_rwlock_define(extern,__libc_setlocale_lock attribute_hidden)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 (cnt, 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 (dataset); 52 } 53 weak_alias (__freelocale, freelocale) 54