Difference between revisions of "LlTransferLindenDollars"
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Iain Maltz (talk | contribs) (Added NULL_KEY guard on TransactionID to prevent race condition where the user could initiate a second TransferLindenDollars before the first one had completed) |
Iain Maltz (talk | contribs) (oopsie missed {}) |
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| Line 64: | Line 64: | ||
} | } | ||
else | else | ||
{ | |||
llOwnerSay( "Transfer of L$ failed"); | llOwnerSay( "Transfer of L$ failed"); | ||
TransactionID = NULL_KEY; | TransactionID = NULL_KEY; | ||
// Keep the script running so Fred can try again, clear TransactionID to allow a new attempt | // Keep the script running so Fred can try again, clear TransactionID to allow a new attempt | ||
} | |||
} | } | ||
} | } | ||
Revision as of 09:16, 23 August 2013
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: key llTransferLindenDollars( key destination, integer amount );
| 0.0 | Forced Delay |
| Energy |
Transfer amount of L$ money from script owner to destination avatar.
Returns a key used in a matching transaction_result event for the success or failure of the transfer. If the transaction is successful, this key will show in the transaction history.
| • key | destination | – | avatar UUID | |
| • integer | amount | – | number of L$, must be greater than zero, (amount > 0) |
To run this function the script must request the PERMISSION_DEBIT permission with llRequestPermissions and it must be granted by the owner. If you aren't going to use the return value or the resulting transaction_result event consider using llGiveMoney instead of this function.
Caveats
Permissions |
|---|
|
- An object cannot pay another object.
- Objects deeded to groups cannot give money (the permission cannot be granted).
- Use is limited to 30 payments in a 30 second interval for all scripts owned by that resident on a region. Sustained overage will produce a script error and halt payments while the rate remains excessive. Historically, faster payments have failed intermittently.
- Once a script has the PERMISSION_DEBIT permission it can empty an account of L$.
- Fraud & theft are both Linden Lab violations and crimes. Misuse this function and you risk being banned and legal action. In addition LL may freeze the accounts of anyone the money is transferred to and restore it to it's rightful owners. This may involve retrieving it from third party exchanges and accounts on those exchanges being frozen. The system is not designed to be friendly towards fraud.
Examples
<lsl> // Pay 100 L$ to Fred Bloggs when he touches this prim // Die if the transfer of funds was successful, else keep running
string Recipient = "Fred Bloggs"; // Authorised recipient integer Amount = 100; // Amount to pay Fred when he touches the prim
integer DebitPerms; key TransactionID=NULL_KEY;
default {
state_entry()
{
// Ask the owner for permission to debit their account
llRequestPermissions(llGetOwner(), PERMISSION_DEBIT);
}
run_time_permissions (integer perm)
{
if (perm & PERMISSION_DEBIT)
DebitPerms = TRUE;
}
touch_start(integer num_detected)
{
if (!DebitPerms)
return; // Cannot proceed - debit permissions not granted
if (llDetectedName(0) != Recipient)
return; // unauthorised person is touching - ignore
if (TransactionID != NULL_KEY)
return; // waiting on previous transaction to complete/fail
key id = llDetectedKey(0);
TransactionID = llTransferLindenDollars(id, Amount);
}
transaction_result(key id, integer success, string data)
{
if (id != TransactionID)
return; // Ignore if not the expected transaction
if (success)
{
llOwnerSay( "Transfer of L$ to " + Recipient + " was successful");
llSleep(1.0);
llDie(); // Die so Fred can't keep taking money
}
else
{
llOwnerSay( "Transfer of L$ failed");
TransactionID = NULL_KEY;
// Keep the script running so Fred can try again, clear TransactionID to allow a new attempt
}
}
}
</lsl>Complex Examples
| • | Simple Piggy Bank |
Notes
- released on main server channel on 3-Dec-2011
See Also
Events
| • | run_time_permissions | – | Permission receiving event | |
| • | transaction_result | |||
| • | money |
Functions
| • | llGetPermissions | – | Get the permissions granted | |
| • | llGetPermissionsKey | – | Get the agent who granted permissions | |
| • | llRequestPermissions | – | Request permissions | |
| • | llGiveMoney | |||
| • | llSetPayPrice |
Articles
| • | Script permissions |
Deep Notes
History
Date of Release 03/12/2011
Signature |
|---|
function key llTransferLindenDollars( key destination, integer amount ); |