426bf3a396
* locale/uselocale.c (__uselocale): Return previous locale when setting a new one. * locale/newlocale.c: Commit changes from 2002-08-30 batch where I failed to commit this file: (__newlocale): Fill in __names array.
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/* Duplicate handle for selection of locales.
|
|
Copyright (C) 1997, 2000, 2001, 2002 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; 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 <string.h>
|
|
|
|
#include <localeinfo.h>
|
|
|
|
|
|
/* Lock for protecting global data. */
|
|
__libc_lock_define (extern , __libc_setlocale_lock attribute_hidden)
|
|
|
|
|
|
__locale_t
|
|
__duplocale (__locale_t dataset)
|
|
{
|
|
__locale_t result;
|
|
int cnt;
|
|
|
|
/* We modify global data. */
|
|
__libc_lock_lock (__libc_setlocale_lock);
|
|
|
|
/* Get memory. */
|
|
result = (__locale_t) malloc (sizeof (struct __locale_struct));
|
|
|
|
if (result != NULL)
|
|
/* Duplicate the names in a separate loop first so we can
|
|
bail out if strdup fails and not have touched usage_counts. */
|
|
for (cnt = 0; cnt < __LC_LAST; ++cnt)
|
|
if (cnt != LC_ALL)
|
|
{
|
|
if (dataset->__names[cnt] == _nl_C_name)
|
|
result->__names[cnt] = _nl_C_name;
|
|
else
|
|
{
|
|
result->__names[cnt] = __strdup (dataset->__names[cnt]);
|
|
if (result->__names[cnt] == NULL)
|
|
{
|
|
while (cnt-- > 0)
|
|
if (result->__names[cnt] != _nl_C_name)
|
|
free ((char *) result->__names[cnt]);
|
|
free (result);
|
|
result = NULL;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (result != NULL)
|
|
{
|
|
for (cnt = 0; cnt < __LC_LAST; ++cnt)
|
|
if (cnt != LC_ALL)
|
|
{
|
|
result->__locales[cnt] = dataset->__locales[cnt];
|
|
if (result->__locales[cnt]->usage_count < MAX_USAGE_COUNT)
|
|
++result->__locales[cnt]->usage_count;
|
|
}
|
|
|
|
/* Update the special members. */
|
|
result->__ctype_b = dataset->__ctype_b;
|
|
result->__ctype_tolower = dataset->__ctype_tolower;
|
|
result->__ctype_toupper = dataset->__ctype_toupper;
|
|
}
|
|
|
|
/* It's done. */
|
|
__libc_lock_unlock (__libc_setlocale_lock);
|
|
|
|
return result;
|
|
}
|
|
weak_alias (__duplocale, duplocale)
|