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/* libc-internal interface for thread-specific data. LinuxThreads version.
Copyright (C) 1997,98,99,2001,02 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 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. */
#ifndef _BITS_LIBC_TSD_H
#define _BITS_LIBC_TSD_H 1
/* Fast thread-specific data internal to libc. */
enum __libc_tsd_key_t { _LIBC_TSD_KEY_MALLOC = 0,
_LIBC_TSD_KEY_DL_ERROR,
_LIBC_TSD_KEY_RPC_VARS,
_LIBC_TSD_KEY_LOCALE,
_LIBC_TSD_KEY_N };
#include <tls.h>
#if USE_TLS && HAVE___THREAD
/* When __thread works, the generic definition is what we want. */
# include <sysdeps/generic/bits/libc-tsd.h>
#else
extern void *(*__libc_internal_tsd_get) (enum __libc_tsd_key_t) __THROW;
extern int (*__libc_internal_tsd_set) (enum __libc_tsd_key_t,
__const void *) __THROW;
#define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY##_data;
#define __libc_tsd_get(KEY) \
(__libc_internal_tsd_get != NULL \
? __libc_internal_tsd_get (_LIBC_TSD_KEY_##KEY) \
: __libc_tsd_##KEY##_data)
#define __libc_tsd_set(KEY, VALUE) \
(__libc_internal_tsd_set != NULL \
? __libc_internal_tsd_set (_LIBC_TSD_KEY_##KEY, (VALUE)) \
: ((__libc_tsd_##KEY##_data = (VALUE)), 0))
#endif
#endif /* bits/libc-tsd.h */
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