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/* Duplicate handle for selection of locales.
Copyright (C) 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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 <bits/libc-lock.h>
#include <stdlib.h>
#include <localeinfo.h>
/* Lock for protecting global data. */
__libc_lock_define (extern , __libc_setlocale_lock)
__locale_t
__duplocale (__locale_t dataset)
{
__locale_t result;
/* We modify global data. */
__libc_lock_lock (__libc_setlocale_lock);
/* Get memory. */
result = (__locale_t) malloc (sizeof (struct __locale_struct));
if (result != NULL)
{
int cnt;
for (cnt = 0; cnt < LC_ALL; ++cnt)
{
result->__locales[cnt] = dataset->__locales[cnt];
if (result->__locales[cnt]->usage_count < MAX_USAGE_COUNT)
++result->__locales[cnt]->usage_count;
}
}
/* It's done. */
__libc_lock_unlock (__libc_setlocale_lock);
return result;
}
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