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/*
* $Id$
*/
#include <stdarg.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <semaphore.h>
#include <limits.h>
#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/posix/semaphore.h>
#include <rtems/posix/time.h>
#include <rtems/posix/seterr.h>
/*PAGE
*
* 11.2.5 Remove a Named Semaphore, P1003.1b-1993, p.225
*/
int sem_unlink(
const char *name
)
{
int status;
register POSIX_Semaphore_Control *the_semaphore;
Objects_Id the_semaphore_id;
Objects_Locations location;
status = _POSIX_Semaphore_Name_to_id( name, &the_semaphore_id );
if ( !status )
set_errno_and_return_minus_one( status );
the_semaphore = _POSIX_Semaphore_Get( &the_semaphore_id, &location );
switch ( location ) {
case OBJECTS_ERROR:
set_errno_and_return_minus_one( EINVAL );
case OBJECTS_REMOTE:
_Thread_Dispatch();
return POSIX_MP_NOT_IMPLEMENTED();
set_errno_and_return_minus_one( EINVAL );
case OBJECTS_LOCAL:
#if defined(RTEMS_MULTIPROCESSING)
if ( the_semaphore->process_shared == PTHREAD_PROCESS_SHARED ) {
_Objects_MP_Close(
&_POSIX_Semaphore_Information,
the_semaphore->Object.id
);
}
#endif
the_semaphore->linked = FALSE;
_POSIX_Semaphore_Delete( the_semaphore );
_Thread_Enable_dispatch();
return 0;
}
return POSIX_BOTTOM_REACHED();
}
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