[810ecf0] | 1 | /** |
---|
| 2 | * @file |
---|
| 3 | * |
---|
| 4 | * @brief Initializing and Destroying a Mutex |
---|
[5cb175bb] | 5 | * @ingroup POSIXAPI |
---|
[810ecf0] | 6 | */ |
---|
| 7 | |
---|
[96c041c] | 8 | /* |
---|
[feaa007] | 9 | * COPYRIGHT (c) 1989-2007. |
---|
| 10 | * On-Line Applications Research Corporation (OAR). |
---|
| 11 | * |
---|
| 12 | * The license and distribution terms for this file may be |
---|
| 13 | * found in the file LICENSE in this distribution or at |
---|
[c499856] | 14 | * http://www.rtems.org/license/LICENSE. |
---|
[96c041c] | 15 | */ |
---|
| 16 | |
---|
[f42b726] | 17 | #if HAVE_CONFIG_H |
---|
| 18 | #include "config.h" |
---|
| 19 | #endif |
---|
| 20 | |
---|
[96c041c] | 21 | #include <errno.h> |
---|
| 22 | #include <pthread.h> |
---|
| 23 | |
---|
| 24 | #include <rtems/system.h> |
---|
[20e239c2] | 25 | #include <rtems/score/coremuteximpl.h> |
---|
[96c041c] | 26 | #include <rtems/score/watchdog.h> |
---|
[f9d533a5] | 27 | #include <rtems/posix/muteximpl.h> |
---|
[97552c98] | 28 | #include <rtems/posix/priorityimpl.h> |
---|
[96c041c] | 29 | |
---|
[64adc13] | 30 | /* |
---|
[96c041c] | 31 | * 11.3.2 Initializing and Destroying a Mutex, P1003.1c/Draft 10, p. 87 |
---|
| 32 | */ |
---|
| 33 | |
---|
| 34 | int pthread_mutex_destroy( |
---|
| 35 | pthread_mutex_t *mutex |
---|
| 36 | ) |
---|
| 37 | { |
---|
| 38 | register POSIX_Mutex_Control *the_mutex; |
---|
| 39 | Objects_Locations location; |
---|
[874297f3] | 40 | |
---|
[23fec9f0] | 41 | _Objects_Allocator_lock(); |
---|
[96c041c] | 42 | the_mutex = _POSIX_Mutex_Get( mutex, &location ); |
---|
| 43 | switch ( location ) { |
---|
[860c34e] | 44 | |
---|
[96c041c] | 45 | case OBJECTS_LOCAL: |
---|
| 46 | /* |
---|
| 47 | * XXX: There is an error for the mutex being locked |
---|
| 48 | * or being in use by a condition variable. |
---|
| 49 | */ |
---|
| 50 | |
---|
| 51 | if ( _CORE_mutex_Is_locked( &the_mutex->Mutex ) ) { |
---|
[2d2352b] | 52 | _Objects_Put( &the_mutex->Object ); |
---|
[23fec9f0] | 53 | _Objects_Allocator_unlock(); |
---|
[96c041c] | 54 | return EBUSY; |
---|
| 55 | } |
---|
[874297f3] | 56 | |
---|
[96c041c] | 57 | _Objects_Close( &_POSIX_Mutex_Information, &the_mutex->Object ); |
---|
[9809d6e0] | 58 | _CORE_mutex_Flush( &the_mutex->Mutex, EINVAL, NULL, 0 ); |
---|
[2d2352b] | 59 | _Objects_Put( &the_mutex->Object ); |
---|
[23fec9f0] | 60 | _POSIX_Mutex_Free( the_mutex ); |
---|
| 61 | _Objects_Allocator_unlock(); |
---|
| 62 | |
---|
[96c041c] | 63 | return 0; |
---|
[860c34e] | 64 | |
---|
| 65 | #if defined(RTEMS_MULTIPROCESSING) |
---|
| 66 | case OBJECTS_REMOTE: |
---|
| 67 | #endif |
---|
| 68 | case OBJECTS_ERROR: |
---|
| 69 | break; |
---|
[96c041c] | 70 | } |
---|
[860c34e] | 71 | |
---|
[23fec9f0] | 72 | _Objects_Allocator_unlock(); |
---|
| 73 | |
---|
[860c34e] | 74 | return EINVAL; |
---|
[96c041c] | 75 | } |
---|