objectnametoid.c

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/*
 *  COPYRIGHT (c) 1989-2010.
 *  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.
 */

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

#include <rtems/score/objectimpl.h>

Objects_Name_or_id_lookup_errors _Objects_Name_to_id_u32(
  uint32_t                   name,
  uint32_t                   node,
  Objects_Id                *id,
  const Objects_Information *information
)
{
  bool                       search_local_node;
  const Objects_Control     *the_object;
  Objects_Maximum            maximum;
  Objects_Maximum            index;
#if defined(RTEMS_MULTIPROCESSING)
  Objects_Name               name_for_mp;
#endif

  /* ASSERT: information->is_string == false */

  if ( !id )
    return OBJECTS_INVALID_ADDRESS;

  maximum = _Objects_Get_maximum_index( information );
  search_local_node = false;

  if ( maximum > 0 &&
      (node == OBJECTS_SEARCH_ALL_NODES ||
       node == OBJECTS_SEARCH_LOCAL_NODE ||
       _Objects_Is_local_node( node )
      ))
   search_local_node = true;

  if ( search_local_node ) {
    for ( index = 0; index < maximum; ++index ) {
      the_object = information->local_table[ index ];
      if ( !the_object )
        continue;

      if ( name == the_object->name.name_u32 ) {
        *id = the_object->id;
        _Assert( name != 0 );
        return OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL;
      }
    }
  }

#if defined(RTEMS_MULTIPROCESSING)
  if ( _Objects_Is_local_node( node ) || node == OBJECTS_SEARCH_LOCAL_NODE )
    return OBJECTS_INVALID_NAME;

  name_for_mp.name_u32 = name;
  return _Objects_MP_Global_name_search( information, name_for_mp, node, id );
#else
  return OBJECTS_INVALID_NAME;
#endif
}