4.115
Last change
on this file since b5c9064 was
b5c9064,
checked in by Zhongwei Yao <ashi08104@…>, on 08/05/13 at 13:20:45
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Unlimited objects support for POSIX keys
This patch enables unlimited model in POSIX key manger and have a decent
runtime on POSIX key searching, adding and deleting operations. Memory
overhead is lower than current implementation when the size of key and key
value becomes big.
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-
Property mode set to
100644
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File size:
1.1 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Thread-Specific Data Key Create |
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5 | * @ingroup POSIXAPI |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2010. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.com/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include <errno.h> |
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22 | #include <limits.h> |
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23 | #include <pthread.h> |
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24 | #include <string.h> |
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25 | |
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26 | #include <rtems/system.h> |
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27 | #include <rtems/score/thread.h> |
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28 | #include <rtems/score/wkspace.h> |
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29 | #include <rtems/posix/key.h> |
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30 | |
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31 | /** |
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32 | * 17.1.1 Thread-Specific Data Key Create, P1003.1c/Draft 10, p. 163 |
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33 | */ |
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34 | int pthread_key_create( |
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35 | pthread_key_t *key, |
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36 | void (*destructor)( void * ) |
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37 | ) |
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38 | { |
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39 | POSIX_Keys_Control *the_key; |
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40 | |
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41 | _Thread_Disable_dispatch(); |
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42 | |
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43 | the_key = _POSIX_Keys_Allocate(); |
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44 | |
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45 | if ( !the_key ) { |
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46 | _Thread_Enable_dispatch(); |
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47 | return EAGAIN; |
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48 | } |
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49 | |
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50 | the_key->destructor = destructor; |
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51 | _Objects_Open_u32( &_POSIX_Keys_Information, &the_key->Object, 0 ); |
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52 | *key = the_key->Object.id; |
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53 | _Thread_Enable_dispatch(); |
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54 | return 0; |
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55 | } |
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