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cf684340ce
Variable declarations removed. (__ctype_b_loc, __ctype_toupper_loc, __ctype_tolower_loc): Declare these functions to replace them. (__isctype, tolower, toupper, _tolower, _toupper): Use those accessor functions plus an indirection rather than the old global variables. * include/ctype.h (__isctype, tolower, _tolower, toupper, _toupper): Macros removed. (__ctype_b_loc, __ctype_toupper_loc, __ctype_tolower_loc): New extern inline functions. * ctype/ctype-info.c: Revert last reversion back the other way. Define tsd vars CTYPE_B, CTYPE_TOLOWER, CTYPE_TOUPPER. Define real function versions of include/ctype.h inlines here. * ctype/Versions (libc: GLIBC_2.3): Add __ctype_b_loc, __ctype_tolower_loc, __ctype_toupper_loc. * locale/lc-ctype.c: Revert last reversion back the other way. (_nl_postload_ctype): If current thread uses the global locale, update its tsd vars. * locale/uselocale.c (__uselocale): Update tsd vars from new locale. * hurd/hurd/threadvar.h (enum __hurd_threadvar_index): Add CTYPE_B, CTYPE_TOLOWER, CTYPE_TOUPPER. * sysdeps/generic/bits/libc-tsd.h (__libc_tsd_address): New macro. * sysdeps/mach/hurd/bits/libc-tsd.h (__libc_tsd_address): Renamed from __libc_tsd_threadvar_location. (__libc_tsd_set, __libc_tsd_get): Update uses.
74 lines
3.0 KiB
C
74 lines
3.0 KiB
C
/* uselocale -- fetch and set the current per-thread locale
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <locale.h>
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#include "localeinfo.h"
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#include <ctype.h>
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/* Switch the current thread's locale to DATASET.
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If DATASET is null, instead just return the current setting.
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The special value LC_GLOBAL_LOCALE is the initial setting
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for all threads, and means the thread uses the global
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setting controlled by `setlocale'. */
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locale_t
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__uselocale (locale_t newloc)
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{
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locale_t oldloc = __libc_tsd_get (LOCALE);
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if (newloc != NULL)
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{
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const locale_t locobj
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= newloc == LC_GLOBAL_LOCALE ? &_nl_global_locale : newloc;
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__libc_tsd_set (LOCALE, locobj);
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#ifdef NL_CURRENT_INDIRECT
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/* Now we must update all the per-category thread-local variables to
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point into the new current locale for this thread. The magic
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symbols _nl_current_LC_FOO_used are defined to meaningless values
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if _nl_current_LC_FOO was linked in. By using weak references to
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both symbols and testing the address of _nl_current_LC_FOO_used,
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we can avoid accessing the _nl_current_LC_FOO thread-local
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variable at all when no code referring to it was linked in. We
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need the special bogus symbol because while TLS symbols can be
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weak, there is no reasonable way to test for the default-zero
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value as with a heap symbol (taking the address would just use
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some bogus offset from our thread pointer). */
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# define DEFINE_CATEGORY(category, category_name, items, a) \
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{ \
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extern char _nl_current_##category##_used; \
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weak_extern (_nl_current_##category##_used) \
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weak_extern (_nl_current_##category) \
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if (&_nl_current_##category##_used != 0) \
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_nl_current_##category = &locobj->__locales[category]; \
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}
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# include "categories.def"
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# undef DEFINE_CATEGORY
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#endif
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/* Update the special tsd cache of some locale data. */
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__libc_tsd_set (CTYPE_B, (void *) locobj->__ctype_b);
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__libc_tsd_set (CTYPE_TOLOWER, (void *) locobj->__ctype_tolower);
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__libc_tsd_set (CTYPE_TOUPPER, (void *) locobj->__ctype_toupper);
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}
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return oldloc == &_nl_global_locale ? LC_GLOBAL_LOCALE : oldloc;
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}
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weak_alias (__uselocale, uselocale)
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