lb_lookup_object_local(3ncs)											      lb_lookup_object_local(3ncs)

Name
       lb_lookup_object_local - look up information about an object in a Local Location Broker database

Syntax
       #include <idl/c/lb.h>

       void  lb_$lookup_object_local(object,  location,  location_length,  lookup_handle			     max_num_results, num_results,
       results, status)
       uuid_$t *object;
       socket_$addr_t *location;
       unsigned long location_length;
       lb_$lookup_handle_t *lookup_handle;
       unsigned long max_num_results;
       unsigned long *num_results;
       lb_$entry_t results[ ];
       status_$t *status;

Arguments
       object		   The UUID of the object being looked up.

       location 	   The location of the LLB database to be searched.  The socket address must specify the network address of a host.   How-
			   ever, the port number in the socket address is ignored, and the lookup request is always sent to the LLB port.

       location_length	   The length, in bytes, of the socket address specified by the location field.

       lookup_handle	   A  location	in  the  database.   On  input,  the lookup_handle indicates the location in the database where the search
			   begins.  An input value of lb_$default_lookup_handle specifies that the search will start at the beginning of the data-
			   base.  On return, the lookup_handle indicates the next unsearched part of the database (that is, the point at which the
			   next search should begin).  A return value of lb_$default_lookup_handle indicates that the search reached  the  end	of
			   the database; any other return value indicates that the search found at most max_num_results matching entries before it
			   reached the end of the database.

       max_num_results	   The maximum number of entries that can be returned by a single routine.  This should be the number of elements  in  the
			   results array.

       num_results	   The number of entries that were returned in the results array.

       results		   An  array that contains the matching GLB database entries, up to the number specified by the max_num_results parameter.
			   If the array contains any entries for servers on the local network, those entries appear first.

       status		   The completion status.  If the completion status returned in is equal to status_$ok , then the routine that supplied it
			   was successful.

Description
       The routine searches the specified LLB database and returns all entries whose object field matches the specified object.

       The routine cannot return more than max_num_results matching entries at a time.	The lookup_handle parameter enables you to find all match-
       ing entries by doing sequential lookups.

       If you use a sequence of lookup routines to find entries in the database, it is possible that the returned results will skip  or  duplicate
       entries.   This	is  because  the  Location Broker does not prevent modification of the database between lookups, and such modification can
       change the locations of entries relative to a lookup_handle value.

       It is also possible that the results of a single lookup routine will skip or duplicate entries.	This can occur if the size of the  results
       exceeds the size of an RPC packet (64K bytes).

Examples
       The  following  statement looks up information about the object locobj.	Since there is only one entry on any host, the routine will return
       at most one result:
       lb_$lookup_object_local (&locobj_id, &location, location_length,
				    &lookup_handle, 1, &num_results,
				    &results, &status);

Diagnostics
       This section lists status codes for errors returned by this routine in

       lb_$database_invalid
			   The format of the Location Broker database is out of date.  The database may have been created by an old version of the
			   Location  Broker;  in this case, delete the out-of-date database and reregister any entries that it contained.  The LLB
			   that was accessed may be running out-of-date software; in this case, update all Location Brokers to the  current  soft-
			   ware version.

       lb_$database_busy   The Location Broker database is currently in use in an incompatible manner.

       lb_$not_registered  The	Location  Broker  does not have any entries that match the criteria specified in the lookup or unregister routine.
			   The requested object, type, interface, or combination thereof is not registered in the specified database.  If you  are
			   using an or routine specifying an LLB, check that you have specified the correct LLB.

       lb_$cant_access	   The Location Broker cannot access the database.  Among the possible reasons:

			   1. The database does not exist.

			   2. The database exists, but the Location Broker cannot access it.

       lb_$server_unavailable
			   The	Location  Broker Client Agent cannot reach the requested LLB.  A communications failure occurred or the broker was
			   not running.

Files
See Also
       intro(3ncs), lb_lookup_range(3ncs)

														      lb_lookup_object_local(3ncs)