/*
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  $Id$
 */

#include <itron.h>

#include <rtems/score/thread.h>
#include <rtems/score/userext.h>
#include <rtems/score/wkspace.h>
#include <rtems/score/apiext.h>
#include <rtems/score/sysstate.h>

#include <rtems/itron/task.h>


/*
 *  ref_tsk - Reference Task Status
 */

ER ref_tsk(
  T_RTSK *pk_rtsk,
  ID      tskid
)
{
  register Thread_Control *the_thread;
  Objects_Locations        location;
  Priority_Control         core_priority;  

  the_thread = _ITRON_Task_Get( tskid, &location );
  if (!the_thread)
    _ITRON_return_errorno( _ITRON_Task_Clarify_get_id_error( tskid ) );

  if (!pk_rtsk)
    _ITRON_return_errorno( E_PAR );

  /*
   * The following are extended functions [level X ].
   * XXX - tskwait, wid, wupcnt, and tskatr are presently not implemented.
   */

  pk_rtsk->tskwait = 0;
  pk_rtsk->wid     = 0;
  pk_rtsk->wupcnt  = 0;
  pk_rtsk->suscnt  = the_thread->suspend_count;
  pk_rtsk->tskatr  = 0;
  pk_rtsk->task    = the_thread->Start.entry_point; 
  core_priority    = the_thread->Start.initial_priority;
  pk_rtsk->itskpri = _ITRON_Task_Core_to_Priority( core_priority );
  pk_rtsk->stksz   = the_thread->Start.Initial_stack.size;

  /*
   * The following are required.
   */

  pk_rtsk->exinf   = NULL;   /* extended information */
  pk_rtsk->tskpri  = _ITRON_Task_Core_to_Priority(the_thread->current_priority);
  pk_rtsk->tskstat = 0;

  /*
   * Mask in the tskstat information
   * Convert the task state XXX double check this
   */

  if ( the_thread == _Thread_Executing )
    pk_rtsk->tskstat |= TTS_RUN;
  if ((the_thread->current_state & STATES_READY)   != 0)
    pk_rtsk->tskstat = TTS_RDY;  
  if (_States_Is_dormant( the_thread->current_state ))
    pk_rtsk->tskstat = TTS_DMT;
  if ((the_thread->current_state & STATES_SUSPENDED) != 0)
    pk_rtsk->tskstat = TTS_SUS;
  if ((the_thread->current_state & STATES_BLOCKED) != 0)
    pk_rtsk->tskstat = TTS_WAI;

  return E_OK;           /* XXX - Should never get here */
}