/*
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/*
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* Object Handler
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* Object Handler
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*
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*
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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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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* 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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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* $Id: objectgetbyindex.c,v 1.2 2001-09-27 11:59:34 chris Exp $
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* $Id: objectgetbyindex.c,v 1.2 2001-09-27 11:59:34 chris Exp $
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*/
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*/
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#include <rtems/system.h>
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#include <rtems/system.h>
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#include <rtems/score/address.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/chain.h>
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#include <rtems/score/object.h>
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#include <rtems/score/object.h>
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#if defined(RTEMS_MULTIPROCESSING)
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#if defined(RTEMS_MULTIPROCESSING)
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#include <rtems/score/objectmp.h>
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#include <rtems/score/objectmp.h>
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#endif
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#endif
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#include <rtems/score/thread.h>
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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/wkspace.h>
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#include <rtems/score/sysstate.h>
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#include <rtems/score/sysstate.h>
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#include <rtems/score/isr.h>
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#include <rtems/score/isr.h>
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/*PAGE
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/*PAGE
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*
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*
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* _Objects_Get_by_index
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* _Objects_Get_by_index
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*
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*
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* This routine sets the object pointer for the given
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* This routine sets the object pointer for the given
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* object id based on the given object information structure.
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* object id based on the given object information structure.
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*
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*
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* Input parameters:
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* Input parameters:
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* information - pointer to entry in table for this class
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* information - pointer to entry in table for this class
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* index - object index to check for
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* index - object index to check for
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* location - address of where to store the location
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* location - address of where to store the location
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*
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*
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* Output parameters:
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* Output parameters:
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* returns - address of object if local
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* returns - address of object if local
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* location - one of the following:
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* location - one of the following:
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* OBJECTS_ERROR - invalid object ID
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* OBJECTS_ERROR - invalid object ID
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* OBJECTS_REMOTE - remote object
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* OBJECTS_REMOTE - remote object
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* OBJECTS_LOCAL - local object
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* OBJECTS_LOCAL - local object
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*/
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*/
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Objects_Control *_Objects_Get_by_index(
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Objects_Control *_Objects_Get_by_index(
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Objects_Information *information,
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Objects_Information *information,
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unsigned32 index,
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unsigned32 index,
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Objects_Locations *location
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Objects_Locations *location
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)
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)
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{
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{
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Objects_Control *the_object;
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Objects_Control *the_object;
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if ( information->maximum >= index ) {
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if ( information->maximum >= index ) {
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_Thread_Disable_dispatch();
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_Thread_Disable_dispatch();
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if ( (the_object = _Objects_Get_local_object( information, index )) != NULL ) {
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if ( (the_object = _Objects_Get_local_object( information, index )) != NULL ) {
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*location = OBJECTS_LOCAL;
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*location = OBJECTS_LOCAL;
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return( the_object );
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return( the_object );
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}
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}
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_Thread_Enable_dispatch();
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_Thread_Enable_dispatch();
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*location = OBJECTS_ERROR;
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*location = OBJECTS_ERROR;
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return( NULL );
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return( NULL );
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}
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}
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/*
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/*
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* With just an index, you can't access a remote object.
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* With just an index, you can't access a remote object.
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*/
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*/
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_Thread_Enable_dispatch();
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_Thread_Enable_dispatch();
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*location = OBJECTS_ERROR;
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*location = OBJECTS_ERROR;
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return NULL;
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return NULL;
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}
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}
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