1 | /* libc-internal interface for thread-specific data. LinuxThreads version. |
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2 | Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc. |
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3 | This file is part of the GNU C Library. |
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4 | |
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5 | The GNU C Library is free software; you can redistribute it and/or |
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6 | modify it under the terms of the GNU Library General Public License as |
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7 | published by the Free Software Foundation; either version 2 of the |
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8 | License, or (at your option) any later version. |
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9 | |
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10 | The GNU C Library is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 | Library General Public License for more details. |
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14 | |
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15 | You should have received a copy of the GNU Library General Public |
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16 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
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17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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18 | Boston, MA 02111-1307, USA. */ |
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19 | |
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20 | #ifndef _BITS_LIBC_TSD_H |
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21 | #define _BITS_LIBC_TSD_H 1 |
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22 | |
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23 | |
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24 | /* Fast thread-specific data internal to libc. */ |
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25 | enum __libc_tsd_key_t { _LIBC_TSD_KEY_MALLOC = 0, |
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26 | _LIBC_TSD_KEY_DL_ERROR, |
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27 | _LIBC_TSD_KEY_RPC_VARS, |
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28 | _LIBC_TSD_KEY_N }; |
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29 | |
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30 | extern void *(*__libc_internal_tsd_get) (enum __libc_tsd_key_t) __THROW; |
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31 | extern int (*__libc_internal_tsd_set) (enum __libc_tsd_key_t, |
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32 | __const void *) __THROW; |
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33 | |
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34 | #define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY##_data; |
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35 | #define __libc_tsd_get(KEY) \ |
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36 | (__libc_internal_tsd_get != NULL \ |
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37 | ? __libc_internal_tsd_get (_LIBC_TSD_KEY_##KEY) \ |
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38 | : __libc_tsd_##KEY##_data) |
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39 | #define __libc_tsd_set(KEY, VALUE) \ |
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40 | (__libc_internal_tsd_set != NULL \ |
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41 | ? __libc_internal_tsd_set (_LIBC_TSD_KEY_##KEY, (VALUE)) \ |
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42 | : ((__libc_tsd_##KEY##_data = (VALUE)), 0)) |
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43 | |
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44 | #endif /* bits/libc-tsd.h */ |
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