rtems_status_code rtems_partition_delete(
rtems_id id
)
{
register Partition_Control *the_partition;
Objects_Locations location;
the_partition = _Partition_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( the_partition->number_of_used_blocks == 0 ) {
_Objects_Close( &_Partition_Information, &the_partition->Object );
_Partition_Free( the_partition );
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( the_partition->attribute_set ) ) {
_Objects_MP_Close(
&_Partition_Information,
the_partition->Object.id
);
_Partition_MP_Send_process_packet(
PARTITION_MP_ANNOUNCE_DELETE,
the_partition->Object.id,
0, /* Not used */
0 /* Not used */
);
}
#endif
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
_Thread_Enable_dispatch();
return RTEMS_RESOURCE_IN_USE;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
_Thread_Dispatch();
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
rtems_status_code rtems_partition_create(
rtems_name name,
void *starting_address,
uint32_t length,
uint32_t buffer_size,
rtems_attribute attribute_set,
rtems_id *id
)
{
register Partition_Control *the_partition;
if ( !rtems_is_name_valid( name ) )
return RTEMS_INVALID_NAME;
if ( !starting_address )
return RTEMS_INVALID_ADDRESS;
if ( !id )
return RTEMS_INVALID_ADDRESS;
if ( length == 0 || buffer_size == 0 || length < buffer_size ||
!_Partition_Is_buffer_size_aligned( buffer_size ) )
return RTEMS_INVALID_SIZE;
if ( !_Addresses_Is_aligned( starting_address ) )
return RTEMS_INVALID_ADDRESS;
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( attribute_set ) &&
!_System_state_Is_multiprocessing )
return RTEMS_MP_NOT_CONFIGURED;
#endif
_Thread_Disable_dispatch(); /* prevents deletion */
the_partition = _Partition_Allocate();
if ( !the_partition ) {
_Thread_Enable_dispatch();
return RTEMS_TOO_MANY;
}
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( attribute_set ) &&
!( _Objects_MP_Allocate_and_open( &_Partition_Information, name,
the_partition->Object.id, false ) ) ) {
_Partition_Free( the_partition );
_Thread_Enable_dispatch();
return RTEMS_TOO_MANY;
}
#endif
the_partition->starting_address = starting_address;
the_partition->length = length;
the_partition->buffer_size = buffer_size;
the_partition->attribute_set = attribute_set;
the_partition->number_of_used_blocks = 0;
_Chain_Initialize( &the_partition->Memory, starting_address,
length / buffer_size, buffer_size );
_Objects_Open(
&_Partition_Information,
&the_partition->Object,
(Objects_Name) name
);
*id = the_partition->Object.id;
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( attribute_set ) )
_Partition_MP_Send_process_packet(
PARTITION_MP_ANNOUNCE_CREATE,
the_partition->Object.id,
name,
0 /* Not used */
);
#endif
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}