58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* Duplicate handle for selection of locales.
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <locale.h>
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#include <bits/libc-lock.h>
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#include <stdlib.h>
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#include <localeinfo.h>
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/* Lock for protecting global data. */
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__libc_lock_define (extern , __libc_setlocale_lock)
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__locale_t
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__duplocale (__locale_t dataset)
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{
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__locale_t result;
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/* We modify global data. */
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__libc_lock_lock (__libc_setlocale_lock);
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/* Get memory. */
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result = (__locale_t) malloc (sizeof (struct __locale_struct));
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if (result != NULL)
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{
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int cnt;
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for (cnt = 0; cnt < LC_ALL; ++cnt)
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{
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result->__locales[cnt] = dataset->__locales[cnt];
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if (result->__locales[cnt]->usage_count < MAX_USAGE_COUNT)
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++result->__locales[cnt]->usage_count;
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}
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}
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/* It's done. */
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__libc_lock_unlock (__libc_setlocale_lock);
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return result;
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}
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