llCreateKeyValue

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/LSL

CreateKeyValue

llCreateKeyValue

Summary

Function: key llCreateKeyValue( string k, string v );

?	Function ID
	Forced Delay
	Energy

Start an asynchronous transaction to create a key-value pair associated with the given experience key using the given key and value.
Returns a handle (a key) that can be used to identify the corresponding dataserver event to determine if this command succeeded or failed.

• string	k	–	The key for the key-value pair
• string	v	–	The value for the key-value pair. Maximum 2047 characters, or 4095 if using Mono.

If the key already exists the dataserver will return a failure along with the error XP_ERROR_STORAGE_EXCEPTION.

Specification

Dataserver

The dataserver callback parameters are:

• A key containing the handle returned from llCreateKeyValue
• 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, string value ],",")

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.
• string	value	–	The value for the key-value pair. Maximum 2047 characters, or 4095 if using Mono. Note! This value may contain commas.

Caveats

• Attempting to create a key with llCreateKeyValue when that key already exist will return an error

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Examples

key trans;
default
{
    touch_start(integer total_number)
    {
        trans = llCreateKeyValue("FOO", "BAR");
    }



    dataserver(key t, string value)
    {
        if (t == trans)
        {
            // our llCreateKeyValue transaction is done
            integer result = (integer)llGetSubString(value, 0, 0);
            if (result == 1)
            {
                // the key-value pair was successfully created
                llSay(0, "New key-value pair was created");
            }
            else
            {
                // the key-value pair was not created
                integer error = (integer)(llGetSubString(value, 2, -1));
                llSay(0, "Key-value failed to create: " + llGetExperienceErrorMessage(error));
            }
        }
    } 
}

See Also

Functions

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

Deep Notes

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Signature
function key llCreateKeyValue( string k, string v );