42 lines
1.1 KiB
Solidity
42 lines
1.1 KiB
Solidity
pragma solidity ^0.5.7;
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import "./escrow/Escrow.sol";
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/**
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* @title PullPayment
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* @dev Base contract supporting async send for pull payments. Inherit from this
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* contract and use _asyncTransfer instead of send or transfer.
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*/
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contract PullPayment {
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Escrow private _escrow;
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constructor () internal {
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_escrow = new Escrow();
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}
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/**
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* @dev Withdraw accumulated balance.
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* @param payee Whose balance will be withdrawn.
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*/
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function withdrawPayments(address payable payee) public {
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_escrow.withdraw(payee);
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}
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/**
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* @dev Returns the credit owed to an address.
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* @param dest The creditor's address.
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*/
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function payments(address dest) public view returns (uint256) {
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return _escrow.depositsOf(dest);
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}
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/**
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* @dev Called by the payer to store the sent amount as credit to be pulled.
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* @param dest The destination address of the funds.
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* @param amount The amount to transfer.
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*/
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function _asyncTransfer(address dest, uint256 amount) internal {
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_escrow.deposit.value(amount)(dest);
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}
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}
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