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/**
* @file
*
* @brief rtems_task_is_suspended
* @ingroup ClassicTasks Tasks
*/
/*
* 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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/tasks.h>
#include <rtems/score/threadimpl.h>
/*
* rtems_task_is_suspended
*
* This directive returns a status indicating whether or not
* the specified task is suspended.
*
* Input parameters:
* id - thread id
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful and not suspended
* RTEMS_ALREADY_SUSPENDED - if successful and suspended
* error code - if unsuccessful
*/
rtems_status_code rtems_task_is_suspended(
rtems_id id
)
{
Thread_Control *the_thread;
Objects_Locations location;
the_thread = _Thread_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( !_States_Is_suspended( the_thread->current_state ) ) {
_Objects_Put( &the_thread->Object );
return RTEMS_SUCCESSFUL;
}
_Objects_Put( &the_thread->Object );
return RTEMS_ALREADY_SUSPENDED;
#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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