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/* uselocale -- fetch and set the current per-thread locale
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 "localeinfo.h"
#ifdef SHARED
/* Switch the current thread's locale to DATASET.
If DATASET is null, instead just return the current setting.
The special value LC_GLOBAL_LOCALE is the initial setting
for all threads, and means the thread uses the global
setting controlled by `setlocale'. */
locale_t
__uselocale (locale_t newloc)
{
if (newloc == NULL)
{
locale_t loc = __libc_tsd_get (LOCALE);
return loc == &_nl_global_locale ? LC_GLOBAL_LOCALE : loc;
}
if (newloc == LC_GLOBAL_LOCALE)
{
__libc_tsd_set (LOCALE, &_nl_global_locale);
return LC_GLOBAL_LOCALE;
}
__libc_tsd_set (LOCALE, newloc);
return newloc;
}
weak_alias (__uselocale, uselocale)
#else
# warning uselocale not implemented for static linking yet
#endif
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