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/**
* @file
*
* @brief RTEMS Delete Semaphore
* @ingroup ClassicSem
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/attrimpl.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/semimpl.h>
#include <rtems/score/coremuteximpl.h>
#include <rtems/score/coresemimpl.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/score/interr.h>
#if defined(RTEMS_MULTIPROCESSING)
#define SEMAPHORE_MP_OBJECT_WAS_DELETED _Semaphore_MP_Send_object_was_deleted
#else
#define SEMAPHORE_MP_OBJECT_WAS_DELETED NULL
#endif
rtems_status_code rtems_semaphore_delete(
rtems_id id
)
{
register Semaphore_Control *the_semaphore;
Objects_Locations location;
the_semaphore = _Semaphore_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( !_Attributes_Is_counting_semaphore(the_semaphore->attribute_set) ) {
if ( _CORE_mutex_Is_locked( &the_semaphore->Core_control.mutex ) &&
!_Attributes_Is_simple_binary_semaphore(
the_semaphore->attribute_set ) ) {
_Objects_Put( &the_semaphore->Object );
return RTEMS_RESOURCE_IN_USE;
}
_CORE_mutex_Flush(
&the_semaphore->Core_control.mutex,
SEMAPHORE_MP_OBJECT_WAS_DELETED,
CORE_MUTEX_WAS_DELETED
);
} else {
_CORE_semaphore_Flush(
&the_semaphore->Core_control.semaphore,
SEMAPHORE_MP_OBJECT_WAS_DELETED,
CORE_SEMAPHORE_WAS_DELETED
);
}
_Objects_Close( &_Semaphore_Information, &the_semaphore->Object );
_Semaphore_Free( the_semaphore );
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( the_semaphore->attribute_set ) ) {
_Objects_MP_Close( &_Semaphore_Information, the_semaphore->Object.id );
_Semaphore_MP_Send_process_packet(
SEMAPHORE_MP_ANNOUNCE_DELETE,
the_semaphore->Object.id,
0, /* Not used */
0 /* Not used */
);
}
#endif
_Objects_Put( &the_semaphore->Object );
return RTEMS_SUCCESSFUL;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
_Thread_Dispatch();
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
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