locale/freelocale.c

   1 /* Free data allocated by a call to setlocale_r
   2    Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <locale.h>
  22 #include <stdlib.h>
  23 #include <libc-lock.h>
  24
  25 #include "localeinfo.h"
  26
  27
  28 /* Lock for protecting global data.  */
  29 __libc_lock_define (extern , __libc_setlocale_lock)
  30
  31
  32 void
  33 __freelocale (__locale_t dataset)
  34 {
  35   int cnt;
  36
  37   /* We modify global data.  */
  38   __libc_lock_lock (__libc_setlocale_lock);
  39
  40   for (cnt = 0; cnt < LC_ALL; ++cnt)
  41     if (dataset->__locales[cnt]->usage_count != MAX_USAGE_COUNT)
  42       /* We can remove the data.  */
  43       _nl_remove_locale (cnt, dataset->__locales[cnt]);
  44
  45   /* Free the locale_t handle itself.  */
  46   free (dataset);
  47
  48   /* It's done.  */
  49   __libc_lock_unlock (__libc_setlocale_lock);
  50 }