glibc/locale/freelocale.c

/* Free data allocated by a call to setlocale_r
   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <locale.h>
#include <stdlib.h>
#include <bits/libc-lock.h>

#include "localeinfo.h"


/* Lock for protecting global data.  */
__libc_lock_define (extern , __libc_setlocale_lock)


void
__freelocale (__locale_t dataset)
{
  int cnt;

  /* We modify global data.  */
  __libc_lock_lock (__libc_setlocale_lock);

  for (cnt = 0; cnt < LC_ALL; ++cnt)
    if (dataset->__locales[cnt]->usage_count != UNDELETABLE)
      /* We can remove the data.  */
      _nl_remove_locale (cnt, dataset->__locales[cnt]);

  /* Free the locale_t handle itself.  */
  free (dataset);

  /* It's done.  */
  __libc_lock_unlock (__libc_setlocale_lock);
}