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

• Maximum memory storage: 128 MiB

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();