5
Last change
on this file since dce48791 was
dce48791,
checked in by Sebastian Huber <sebastian.huber@…>, on 05/23/16 at 11:37:59
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score: Add Status_Control for all APIs
Unify the status codes of the Classic and POSIX API to use the new enum
Status_Control. This eliminates the Thread_Control::Wait::timeout_code
field and the timeout parameter of _Thread_queue_Enqueue_critical() and
_MPCI_Send_request_packet(). It gets rid of the status code translation
tables and instead uses simple bit operations to get the status for a
particular API. This enables translation of status code constants at
compile time. Add _Thread_Wait_get_status() to avoid direct access of
thread internal data structures.
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Property mode set to
100644
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File size:
981 bytes
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Locking and Unlocking a Mutex |
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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) 1989-2007. |
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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.org/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 <rtems/posix/muteximpl.h> |
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22 | #include <rtems/posix/posixapi.h> |
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23 | |
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24 | /* |
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25 | * 11.3.3 Locking and Unlocking a Mutex, P1003.1c/Draft 10, p. 93 |
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26 | * |
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27 | * NOTE: P1003.4b/D8 adds pthread_mutex_timedlock(), p. 29 |
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28 | */ |
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29 | |
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30 | int pthread_mutex_unlock( |
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31 | pthread_mutex_t *mutex |
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32 | ) |
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33 | { |
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34 | POSIX_Mutex_Control *the_mutex; |
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35 | Thread_queue_Context queue_context; |
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36 | Status_Control status; |
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37 | |
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38 | the_mutex = _POSIX_Mutex_Get( mutex, &queue_context ); |
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39 | |
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40 | if ( the_mutex == NULL ) { |
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41 | return EINVAL; |
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42 | } |
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43 | |
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44 | status = _CORE_mutex_Surrender( &the_mutex->Mutex, &queue_context ); |
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45 | return _POSIX_Get_error( status ); |
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46 | } |
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