4.104.114.84.95
Last change
on this file since 188c82b was
188c82b,
checked in by Joel Sherrill <joel.sherrill@…>, on 08/30/00 at 17:12:55
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2000-08-30 Joel Sherrill <joel@…>
- Many files: Moved posix/include/rtems/posix/seterr.h to
score/include/rtems/seterr.h so it would be available within
all APIs.
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-
Property mode set to
100644
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File size:
1.1 KB
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Line | |
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1 | /* |
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2 | * $Id$ |
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3 | */ |
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4 | |
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5 | #include <stdarg.h> |
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6 | |
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7 | #include <errno.h> |
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8 | #include <fcntl.h> |
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9 | #include <pthread.h> |
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10 | #include <semaphore.h> |
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11 | #include <limits.h> |
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12 | |
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13 | #include <rtems/system.h> |
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14 | #include <rtems/score/object.h> |
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15 | #include <rtems/posix/semaphore.h> |
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16 | #include <rtems/posix/time.h> |
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17 | #include <rtems/seterr.h> |
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18 | |
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19 | |
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20 | /*PAGE |
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21 | * |
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22 | * sem_close |
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23 | * |
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24 | * Routine to close a semaphore that has been opened or initialized. |
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25 | * |
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26 | * 11.2.4 Close a Named Semaphore, P1003.1b-1993, p.224 |
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27 | */ |
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28 | |
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29 | int sem_close( |
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30 | sem_t *sem |
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31 | ) |
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32 | { |
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33 | register POSIX_Semaphore_Control *the_semaphore; |
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34 | Objects_Locations location; |
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35 | |
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36 | the_semaphore = _POSIX_Semaphore_Get( sem, &location ); |
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37 | switch ( location ) { |
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38 | case OBJECTS_ERROR: |
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39 | set_errno_and_return_minus_one( EINVAL ); |
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40 | case OBJECTS_REMOTE: |
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41 | _Thread_Dispatch(); |
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42 | return POSIX_MP_NOT_IMPLEMENTED(); |
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43 | set_errno_and_return_minus_one( EINVAL ); |
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44 | case OBJECTS_LOCAL: |
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45 | the_semaphore->open_count -= 1; |
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46 | _POSIX_Semaphore_Delete( the_semaphore ); |
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47 | _Thread_Enable_dispatch(); |
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48 | return 0; |
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49 | } |
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50 | return POSIX_BOTTOM_REACHED(); |
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51 | } |
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