llKeyCountKeyValue

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/LSL

KeyCountKeyValue

llKeyCountKeyValue

Summary

Function: key llKeyCountKeyValue( );

	Forced Delay
	Energy

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:

• A key containing the handle returned from llKeyCountKeyValue
• A string containing a comma-delimited list (cdl). llDumpList2String([ integer success ] + components);
  • components vary depending upon success or failure of request.
  • Failure: cdl = llDumpList2String([ 0, integer error],",")
  • Success: cdl = llDumpList2String([ 1, integer pairs ],",")

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.

Important: Not all TPVs have this functionality.

See Also

Functions

• llGetExperienceErrorMessage
• llCreateKeyValue
• llReadKeyValue
• llUpdateKeyValue
• llDeleteKeyValue
• llDataSizeKeyValue
• llKeyCountKeyValue
• llKeysKeyValue

Deep Notes

Signature
function key llKeyCountKeyValue();