/*
|
/*
|
* Object Handler
|
* Object Handler
|
*
|
*
|
*
|
*
|
* COPYRIGHT (c) 1989-1999.
|
* COPYRIGHT (c) 1989-1999.
|
* On-Line Applications Research Corporation (OAR).
|
* On-Line Applications Research Corporation (OAR).
|
*
|
*
|
* The license and distribution terms for this file may be
|
* The license and distribution terms for this file may be
|
* found in the file LICENSE in this distribution or at
|
* found in the file LICENSE in this distribution or at
|
* http://www.OARcorp.com/rtems/license.html.
|
* http://www.OARcorp.com/rtems/license.html.
|
*
|
*
|
* $Id: objectallocatebyindex.c,v 1.2 2001-09-27 11:59:34 chris Exp $
|
* $Id: objectallocatebyindex.c,v 1.2 2001-09-27 11:59:34 chris Exp $
|
*/
|
*/
|
|
|
#include <rtems/system.h>
|
#include <rtems/system.h>
|
#include <rtems/score/address.h>
|
#include <rtems/score/address.h>
|
#include <rtems/score/chain.h>
|
#include <rtems/score/chain.h>
|
#include <rtems/score/object.h>
|
#include <rtems/score/object.h>
|
#if defined(RTEMS_MULTIPROCESSING)
|
#if defined(RTEMS_MULTIPROCESSING)
|
#include <rtems/score/objectmp.h>
|
#include <rtems/score/objectmp.h>
|
#endif
|
#endif
|
#include <rtems/score/thread.h>
|
#include <rtems/score/thread.h>
|
#include <rtems/score/wkspace.h>
|
#include <rtems/score/wkspace.h>
|
#include <rtems/score/sysstate.h>
|
#include <rtems/score/sysstate.h>
|
#include <rtems/score/isr.h>
|
#include <rtems/score/isr.h>
|
|
|
/*PAGE
|
/*PAGE
|
*
|
*
|
* _Objects_Allocate_by_index
|
* _Objects_Allocate_by_index
|
*
|
*
|
* DESCRIPTION:
|
* DESCRIPTION:
|
*
|
*
|
* This function allocates the object control block
|
* This function allocates the object control block
|
* specified by the index from the inactive chain of
|
* specified by the index from the inactive chain of
|
* free object control blocks.
|
* free object control blocks.
|
*/
|
*/
|
|
|
Objects_Control *_Objects_Allocate_by_index(
|
Objects_Control *_Objects_Allocate_by_index(
|
Objects_Information *information,
|
Objects_Information *information,
|
unsigned32 index,
|
unsigned32 index,
|
unsigned32 sizeof_control
|
unsigned32 sizeof_control
|
)
|
)
|
{
|
{
|
Objects_Control *the_object;
|
Objects_Control *the_object;
|
|
|
if ( index && information->maximum >= index ) {
|
if ( index && information->maximum >= index ) {
|
the_object = _Objects_Get_local_object( information, index );
|
the_object = _Objects_Get_local_object( information, index );
|
if ( the_object )
|
if ( the_object )
|
return NULL;
|
return NULL;
|
|
|
/* XXX
|
/* XXX
|
* This whole section of code needs to be addressed.
|
* This whole section of code needs to be addressed.
|
* + The 0 should be dealt with more properly so we can autoextend.
|
* + The 0 should be dealt with more properly so we can autoextend.
|
* + The pointer arithmetic is probably too expensive.
|
* + The pointer arithmetic is probably too expensive.
|
* + etc.
|
* + etc.
|
*/
|
*/
|
|
|
the_object = (Objects_Control *) _Addresses_Add_offset(
|
the_object = (Objects_Control *) _Addresses_Add_offset(
|
information->object_blocks[ 0 ],
|
information->object_blocks[ 0 ],
|
(sizeof_control * (index - 1))
|
(sizeof_control * (index - 1))
|
);
|
);
|
_Chain_Extract( &the_object->Node );
|
_Chain_Extract( &the_object->Node );
|
|
|
return the_object;
|
return the_object;
|
}
|
}
|
|
|
/*
|
/*
|
* Autoextend will have to be thought out as it applies
|
* Autoextend will have to be thought out as it applies
|
* to user assigned indices.
|
* to user assigned indices.
|
*/
|
*/
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|