rtems_status_code _Partition_MP_Return_buffer(
rtems_id id,
void *buffer
)
{
return _Partition_MP_Send_request_packet(
id,
buffer,
PARTITION_MP_RETURN_BUFFER_REQUEST
);
}
rtems_status_code _Partition_MP_Get_buffer(
rtems_id id,
void **buffer
)
{
_Thread_Get_executing()->Wait.return_argument = buffer;
return _Partition_MP_Send_request_packet(
id,
buffer,
PARTITION_MP_GET_BUFFER_REQUEST
);
}
rtems_status_code rtems_partition_get_buffer(
rtems_id id,
void **buffer
)
{
register Partition_Control *the_partition;
Objects_Locations location;
void *the_buffer;
if ( !buffer )
return RTEMS_INVALID_ADDRESS;
the_partition = _Partition_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
the_buffer = _Partition_Allocate_buffer( the_partition );
if ( the_buffer ) {
the_partition->number_of_used_blocks += 1;
_Thread_Enable_dispatch();
*buffer = the_buffer;
return RTEMS_SUCCESSFUL;
}
_Thread_Enable_dispatch();
return RTEMS_UNSATISFIED;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
_Thread_Executing->Wait.return_argument = buffer;
return(
_Partition_MP_Send_request_packet(
PARTITION_MP_GET_BUFFER_REQUEST,
id,
0 /* Not used */
)
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
rtems_status_code rtems_partition_return_buffer(
rtems_id id,
void *buffer
)
{
register Partition_Control *the_partition;
Objects_Locations location;
the_partition = _Partition_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( _Partition_Is_buffer_valid( buffer, the_partition ) ) {
_Partition_Free_buffer( the_partition, buffer );
the_partition->number_of_used_blocks -= 1;
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
_Thread_Enable_dispatch();
return RTEMS_INVALID_ADDRESS;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return _Partition_MP_Send_request_packet(
PARTITION_MP_RETURN_BUFFER_REQUEST,
id,
buffer
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
