llKeyCountKeyValue

From Second Life Wiki
Jump to navigation Jump to search

Summary

Function: key llKeyCountKeyValue( );

Start an asynchronous transaction to request the number of keys with the script's Experience.
Returns a handle (a key) that can be used to identify the corresponding dataserver event to determine if this command succeeded or failed and the results.

Specification

Dataserver

The dataserver callback parameters are:

String Components
• integer success A boolean specifying if the transaction succeeded (1) or not (0).
• integer error An XP_ERROR_* flag that describes why the operation failed.
• integer pairs number of keys-value pairs in the key-value store

Caveats

  • If you recompile a script that was previously associated with an Experience but do so with a client that lacks the ability to compile scripts into an experience the script will lose the associated Experience.

Examples

key trans;
default
{
    state_entry()
    {
        trans = llKeyCountKeyValue();
    }


    dataserver(key t, string value)
    {
        if (t == trans)
        {
            // our llKeyCountKeyValue transaction is done
            list result = llCSV2List(value);
            if (llList2Integer(result, 0) == 1)
            {
                // data size retrieved
                llSay(0, "Keys in use: "+llList2String(result, 1));
            }
            else
            {
                // key count failed
                llSay(0, "Key-value failed to count keys: " + llList2String(result, 1) );
            }
        }
    } 
}

Notes

Compiling

For a script to be associated with an Experience...

  • It must be compiled with a client that is Experience aware,
  • The "Use Experience" checkbox must be checked,
  • And one of the users Experience keys selected.
KBcaution.png Important: Not all TPVs have this functionality.

Deep Notes

Signature

function key llKeyCountKeyValue();