/*
 *  Obtain Object Name Given ID
 *
 *
 *  COPYRIGHT (c) 1989-2003.
 *  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.
 *
 *  $Id$
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/score/thread.h>

/*
 *  _Objects_Id_to_name
 *
 *  DESCRIPTION:
 *
 *  This routine returns the name associated with the given ID.
 *
 *  INPUT:
 *
 *  id   - id of object to lookup name
 *  name - pointer to location in which to store name
 *
 */
Objects_Name_or_id_lookup_errors _Objects_Id_to_name (
  Objects_Id      id,
  Objects_Name   *name
)
{
  uint32_t             the_api;
  uint32_t             the_class;
  Objects_Id           tmpId;
  Objects_Information *information;
  Objects_Control     *the_object = (Objects_Control *) 0;
  Objects_Locations    ignored_location;

  /*
   *  Caller is trusted for name != NULL.
   */

  tmpId = (id == OBJECTS_ID_OF_SELF) ? _Thread_Executing->Object.id : id;

  the_api = _Objects_Get_API( tmpId );
  if ( !_Objects_Is_api_valid( the_api ) )
    return OBJECTS_INVALID_ID;

  if ( !_Objects_Information_table[ the_api ] )
    return OBJECTS_INVALID_ID;

  the_class = _Objects_Get_class( tmpId );

  information = _Objects_Information_table[ the_api ][ the_class ];
  if ( !information )
    return OBJECTS_INVALID_ID;

  #if defined(RTEMS_SCORE_OBJECT_ENABLE_STRING_NAMES)
    if ( information->is_string )
      return OBJECTS_INVALID_ID;
  #endif

  the_object = _Objects_Get( information, tmpId, &ignored_location );
  if ( !the_object )
    return OBJECTS_INVALID_ID;

  *name = the_object->name;
  _Thread_Enable_dispatch();
  return OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL;
}