llCreateKeyValue
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Summary
Function: key llCreateKeyValue( string k, string v );
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. |
Caveats
Examples
<lsl>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));
}
}
}
}</lsl>