4.104.114.84.95
Last change
on this file since 17879f4 was
17879f4,
checked in by Jennifer Averett <Jennifer.Averett@…>, on 11/18/99 at 19:43:13
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+ Debuged to the point that you could open, unlink and close a semaphore.
but all paths have not been checked, yet.
|
-
Property mode set to
100644
|
File size:
1.5 KB
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Rev | Line | |
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[799c767] | 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/posix/seterr.h> |
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| 18 | |
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| 19 | /*PAGE |
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| 20 | * |
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| 21 | * 11.2.5 Remove a Named Semaphore, P1003.1b-1993, p.225 |
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| 22 | */ |
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| 23 | |
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| 24 | int sem_unlink( |
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| 25 | const char *name |
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| 26 | ) |
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| 27 | { |
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| 28 | int status; |
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| 29 | register POSIX_Semaphore_Control *the_semaphore; |
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| 30 | Objects_Id the_semaphore_id; |
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| 31 | Objects_Locations location; |
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| 32 | |
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| 33 | status = _POSIX_Semaphore_Name_to_id( name, &the_semaphore_id ); |
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[17879f4] | 34 | if ( status != 0 ) |
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[799c767] | 35 | set_errno_and_return_minus_one( status ); |
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| 36 | |
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| 37 | the_semaphore = _POSIX_Semaphore_Get( &the_semaphore_id, &location ); |
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| 38 | switch ( location ) { |
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| 39 | case OBJECTS_ERROR: |
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| 40 | set_errno_and_return_minus_one( EINVAL ); |
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| 41 | case OBJECTS_REMOTE: |
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| 42 | _Thread_Dispatch(); |
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| 43 | return POSIX_MP_NOT_IMPLEMENTED(); |
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| 44 | set_errno_and_return_minus_one( EINVAL ); |
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| 45 | case OBJECTS_LOCAL: |
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| 46 | |
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| 47 | #if defined(RTEMS_MULTIPROCESSING) |
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| 48 | if ( the_semaphore->process_shared == PTHREAD_PROCESS_SHARED ) { |
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| 49 | _Objects_MP_Close( |
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| 50 | &_POSIX_Semaphore_Information, |
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| 51 | the_semaphore->Object.id |
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| 52 | ); |
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| 53 | } |
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| 54 | #endif |
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| 55 | |
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| 56 | the_semaphore->linked = FALSE; |
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[17879f4] | 57 | _POSIX_Semaphore_Namespace_remove( the_semaphore ); |
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[799c767] | 58 | _POSIX_Semaphore_Delete( the_semaphore ); |
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| 59 | |
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| 60 | _Thread_Enable_dispatch(); |
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| 61 | return 0; |
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| 62 | } |
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| 63 | return POSIX_BOTTOM_REACHED(); |
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| 64 | } |
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