staking/contracts/legacy/Owned.sol

36 lines
993 B
Solidity

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.18;
/// @dev `Owned` is a base level contract that assigns an `owner` that can be
/// later changed
contract Owned {
/// @dev `owner` is the only address that can call a function with this
/// modifier
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
address public owner;
/// @notice The Constructor assigns the message sender to be `owner`
constructor() {
owner = msg.sender;
}
address public newOwner;
/// @notice `owner` can step down and assign some other address to this role
/// @param _newOwner The address of the new owner. 0x0 can be used to create
/// an unowned neutral vault, however that cannot be undone
function changeOwner(address _newOwner) external onlyOwner {
newOwner = _newOwner;
}
function acceptOwnership() external {
if (msg.sender == newOwner) {
owner = newOwner;
}
}
}