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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [score/] [src/] [objectnametoid.c] - Blame information for rev 1780

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1 1026 ivang
/*
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 *  Object Handler
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 *
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  objectnametoid.c,v 1.3 2002/07/01 22:30:12 joel Exp
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 */
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#include <rtems/system.h>
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#include <rtems/score/address.h>
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#include <rtems/score/chain.h>
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#include <rtems/score/object.h>
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#if defined(RTEMS_MULTIPROCESSING)
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#include <rtems/score/objectmp.h>
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#endif
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#include <rtems/score/thread.h>
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#include <rtems/score/wkspace.h>
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#include <rtems/score/sysstate.h>
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#include <rtems/score/isr.h>
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/*PAGE
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 *
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 *  _Objects_Name_to_id
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 *
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 *  These kernel routines search the object table(s) for the given
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 *  object name and returns the associated object id.
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 *
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 *  Input parameters:
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 *    information - object information
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 *    name        - user defined object name
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 *    node        - node indentifier (0 indicates any node)
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 *    id          - address of return ID
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 *
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 *  Output parameters:
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 *    id                 - object id
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 *    OBJECTS_SUCCESSFUL - if successful
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 *    error code         - if unsuccessful
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 */
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Objects_Name_to_id_errors _Objects_Name_to_id(
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  Objects_Information *information,
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  Objects_Name         name,
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  unsigned32           node,
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  Objects_Id          *id
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)
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{
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  boolean                    search_local_node;
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  Objects_Control           *the_object;
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  unsigned32                 index;
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  unsigned32                 name_length;
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  Objects_Name_comparators   compare_them;
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  if ( name == 0 )
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    return OBJECTS_INVALID_NAME;
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  search_local_node = FALSE;
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  if ( information->maximum != 0 &&
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      (node == OBJECTS_SEARCH_ALL_NODES || node == OBJECTS_SEARCH_LOCAL_NODE ||
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      _Objects_Is_local_node( node ) ) )
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   search_local_node = TRUE;
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  if ( search_local_node ) {
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    name_length = information->name_length;
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    if ( information->is_string ) compare_them = _Objects_Compare_name_string;
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    else                          compare_them = _Objects_Compare_name_raw;
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    for ( index = 1; index <= information->maximum; index++ ) {
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      the_object = information->local_table[ index ];
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      if ( !the_object || !the_object->name )
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        continue;
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      if ( (*compare_them)( name, the_object->name, name_length ) ) {
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        *id = the_object->id;
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        return OBJECTS_SUCCESSFUL;
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      }
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    }
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  }
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  if ( _Objects_Is_local_node( node ) || node == OBJECTS_SEARCH_LOCAL_NODE )
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    return OBJECTS_INVALID_NAME;
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#if defined(RTEMS_MULTIPROCESSING)
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  return ( _Objects_MP_Global_name_search( information, name, node, id ) );
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#else
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  return OBJECTS_INVALID_NAME;
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#endif
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}

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