You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
627 B
22 lines
627 B
/*
|
|
* PullPaymentCapable
|
|
* Base contract supporting async send for pull payments.
|
|
* Inherit from this contract and use asyncSend instead of send.
|
|
*/
|
|
contract PullPaymentCapable {
|
|
mapping(address => uint) payments;
|
|
|
|
// store sent amount as credit to be pulled, called by payer
|
|
function asyncSend(address dest, uint amount) internal {
|
|
payments[dest] += amount;
|
|
}
|
|
|
|
// withdraw accumulated balance, called by payee
|
|
function withdrawPayments() external {
|
|
uint payment = payments[msg.sender];
|
|
payments[msg.sender] = 0;
|
|
if (!msg.sender.send(payment)) {
|
|
payments[msg.sender] = payment;
|
|
}
|
|
}
|
|
}
|
|
|