Objects_Name_or_id_lookup_errors _Objects_Name_to_id_u32(
Objects_Information *information,
uint32_t name,
uint32_t node,
Objects_Id *id
)
{
bool search_local_node;
Objects_Control *the_object;
uint32_t index;
#if defined(RTEMS_MULTIPROCESSING)
Objects_Name name_for_mp;
#endif
/* ASSERT: information->is_string == false */
if ( !id )
return OBJECTS_INVALID_ADDRESS;
if ( name == 0 )
return OBJECTS_INVALID_NAME;
search_local_node = false;
if ( information->maximum != 0 &&
(node == OBJECTS_SEARCH_ALL_NODES ||
node == OBJECTS_SEARCH_LOCAL_NODE ||
_Objects_Is_local_node( node )
))
search_local_node = true;
if ( search_local_node ) {
for ( index = 1; index <= information->maximum; index++ ) {
the_object = information->local_table[ index ];
if ( !the_object )
continue;
if ( name == the_object->name.name_u32 ) {
*id = the_object->id;
return OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL;
}
}
}
#if defined(RTEMS_MULTIPROCESSING)
if ( _Objects_Is_local_node( node ) || node == OBJECTS_SEARCH_LOCAL_NODE )
return OBJECTS_INVALID_NAME;
name_for_mp.name_u32 = name;
return _Objects_MP_Global_name_search( information, name_for_mp, node, id );
#else
return OBJECTS_INVALID_NAME;
#endif
}
void _Objects_MP_Is_remote (
Objects_Information *information,
Objects_Id the_id,
Objects_Locations *location,
Objects_Control **the_object
)
{
uint32_t node;
Chain_Control *the_chain;
Chain_Node *the_node;
Objects_MP_Control *the_global_object;
node = _Objects_Get_node( the_id );
/*
* NOTE: The local node was search (if necessary) by
* _Objects_Name_to_id_XXX before this was invoked.
*
* The NODE field of an object id cannot be 0
* because 0 is an invalid node number.
*/
if ( node == 0 ||
_Objects_Is_local_node( node ) ||
node > _Objects_Maximum_nodes ||
information->global_table == NULL ) {
*location = OBJECTS_ERROR;
*the_object = NULL;
return;
}
_Thread_Disable_dispatch();
the_chain = &information->global_table[ node ];
for ( the_node = _Chain_First( the_chain ) ;
!_Chain_Is_tail( the_chain, the_node ) ;
the_node = _Chain_Next( the_node ) ) {
the_global_object = (Objects_MP_Control *) the_node;
if ( _Objects_Are_ids_equal( the_global_object->Object.id, the_id ) ) {
_Thread_Unnest_dispatch();
*location = OBJECTS_REMOTE;
*the_object = (Objects_Control *) the_global_object;
return;
}
}
_Thread_Enable_dispatch();
*location = OBJECTS_ERROR;
*the_object = NULL;
}
Objects_Name_or_id_lookup_errors _Objects_MP_Global_name_search (
Objects_Information *information,
Objects_Name the_name,
uint32_t nodes_to_search,
Objects_Id *the_id
)
{
uint32_t low_node;
uint32_t high_node;
uint32_t node_index;
Chain_Control *the_chain;
Chain_Node *the_node;
Objects_MP_Control *the_object;
uint32_t name_to_use;
name_to_use = the_name.name_u32; /* XXX only fixed length names */
if ( nodes_to_search > _Objects_Maximum_nodes )
return OBJECTS_INVALID_NODE;
if ( information->global_table == NULL )
return OBJECTS_INVALID_NAME;
if ( nodes_to_search == OBJECTS_SEARCH_ALL_NODES ||
nodes_to_search == OBJECTS_SEARCH_OTHER_NODES ) {
low_node = 1;
high_node = _Objects_Maximum_nodes;
} else {
low_node =
high_node = nodes_to_search;
}
_Thread_Disable_dispatch();
for ( node_index = low_node ; node_index <= high_node ; node_index++ ) {
/*
* NOTE: The local node was search (if necessary) by
* _Objects_Name_to_id_XXX before this was invoked.
*/
if ( !_Objects_Is_local_node( node_index ) ) {
the_chain = &information->global_table[ node_index ];
for ( the_node = _Chain_First( the_chain ) ;
!_Chain_Is_tail( the_chain, the_node ) ;
the_node = _Chain_Next( the_node ) ) {
the_object = (Objects_MP_Control *) the_node;
if ( the_object->name == name_to_use ) {
*the_id = the_object->Object.id;
_Thread_Enable_dispatch();
return OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL;
}
}
}
}
_Thread_Enable_dispatch();
return OBJECTS_INVALID_NAME;
}
