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/**
* @file
*
* @brief RTEMS Semaphore Flush
* @ingroup ClassicSem
*/
/*
* COPYRIGHT (c) 1989-2014.
* 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.org/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/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/interr.h>
rtems_status_code rtems_semaphore_flush(
rtems_id id
)
{
Semaphore_Control *the_semaphore;
Objects_Locations location;
ISR_lock_Context lock_context;
rtems_attribute attribute_set;
the_semaphore = _Semaphore_Get_interrupt_disable(
id,
&location,
&lock_context
);
switch ( location ) {
case OBJECTS_LOCAL:
attribute_set = the_semaphore->attribute_set;
#if defined(RTEMS_SMP)
if ( _Attributes_Is_multiprocessor_resource_sharing( attribute_set ) ) {
_ISR_lock_ISR_enable( &lock_context );
return RTEMS_NOT_DEFINED;
} else
#endif
if ( !_Attributes_Is_counting_semaphore( attribute_set ) ) {
_CORE_mutex_Acquire_critical(
&the_semaphore->Core_control.mutex,
&lock_context
);
_CORE_mutex_Flush(
&the_semaphore->Core_control.mutex,
_CORE_mutex_Unsatisfied_nowait,
_Semaphore_MP_Send_object_was_deleted,
id,
&lock_context
);
} else {
_CORE_semaphore_Acquire_critical(
&the_semaphore->Core_control.semaphore,
&lock_context
);
_CORE_semaphore_Flush(
&the_semaphore->Core_control.semaphore,
_Semaphore_MP_Send_object_was_deleted,
id,
&lock_context
);
}
return RTEMS_SUCCESSFUL;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
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