/*
|
/*
|
* Partition Manager
|
* Partition Manager
|
*
|
*
|
*
|
*
|
* 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: partreturnbuffer.c,v 1.2 2001-09-27 11:59:19 chris Exp $
|
* $Id: partreturnbuffer.c,v 1.2 2001-09-27 11:59:19 chris Exp $
|
*/
|
*/
|
|
|
#include <rtems/system.h>
|
#include <rtems/system.h>
|
#include <rtems/rtems/status.h>
|
#include <rtems/rtems/status.h>
|
#include <rtems/rtems/support.h>
|
#include <rtems/rtems/support.h>
|
#include <rtems/score/address.h>
|
#include <rtems/score/address.h>
|
#include <rtems/score/object.h>
|
#include <rtems/score/object.h>
|
#include <rtems/rtems/part.h>
|
#include <rtems/rtems/part.h>
|
#include <rtems/score/thread.h>
|
#include <rtems/score/thread.h>
|
#include <rtems/score/sysstate.h>
|
#include <rtems/score/sysstate.h>
|
|
|
/*PAGE
|
/*PAGE
|
*
|
*
|
* rtems_partition_return_buffer
|
* rtems_partition_return_buffer
|
*
|
*
|
* This directive will return the given buffer to the specified
|
* This directive will return the given buffer to the specified
|
* buffer partition.
|
* buffer partition.
|
*
|
*
|
* Input parameters:
|
* Input parameters:
|
* id - partition id
|
* id - partition id
|
* buffer - pointer to buffer address
|
* buffer - pointer to buffer address
|
*
|
*
|
* Output parameters:
|
* Output parameters:
|
* RTEMS_SUCCESSFUL - if successful
|
* RTEMS_SUCCESSFUL - if successful
|
* error code - if unsuccessful
|
* error code - if unsuccessful
|
*/
|
*/
|
|
|
rtems_status_code rtems_partition_return_buffer(
|
rtems_status_code rtems_partition_return_buffer(
|
Objects_Id id,
|
Objects_Id id,
|
void *buffer
|
void *buffer
|
)
|
)
|
{
|
{
|
register Partition_Control *the_partition;
|
register Partition_Control *the_partition;
|
Objects_Locations location;
|
Objects_Locations location;
|
|
|
the_partition = _Partition_Get( id, &location );
|
the_partition = _Partition_Get( id, &location );
|
switch ( location ) {
|
switch ( location ) {
|
|
|
case OBJECTS_REMOTE:
|
case OBJECTS_REMOTE:
|
#if defined(RTEMS_MULTIPROCESSING)
|
#if defined(RTEMS_MULTIPROCESSING)
|
return _Partition_MP_Send_request_packet(
|
return _Partition_MP_Send_request_packet(
|
PARTITION_MP_RETURN_BUFFER_REQUEST,
|
PARTITION_MP_RETURN_BUFFER_REQUEST,
|
id,
|
id,
|
buffer
|
buffer
|
);
|
);
|
#endif
|
#endif
|
|
|
case OBJECTS_ERROR:
|
case OBJECTS_ERROR:
|
return RTEMS_INVALID_ID;
|
return RTEMS_INVALID_ID;
|
|
|
case OBJECTS_LOCAL:
|
case OBJECTS_LOCAL:
|
if ( _Partition_Is_buffer_valid( buffer, the_partition ) ) {
|
if ( _Partition_Is_buffer_valid( buffer, the_partition ) ) {
|
_Partition_Free_buffer( the_partition, buffer );
|
_Partition_Free_buffer( the_partition, buffer );
|
the_partition->number_of_used_blocks -= 1;
|
the_partition->number_of_used_blocks -= 1;
|
_Thread_Enable_dispatch();
|
_Thread_Enable_dispatch();
|
return RTEMS_SUCCESSFUL;
|
return RTEMS_SUCCESSFUL;
|
}
|
}
|
_Thread_Enable_dispatch();
|
_Thread_Enable_dispatch();
|
return RTEMS_INVALID_ADDRESS;
|
return RTEMS_INVALID_ADDRESS;
|
}
|
}
|
|
|
return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
|
return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
|
}
|
}
|
|
|