48 lines
1.1 KiB
Solidity
48 lines
1.1 KiB
Solidity
pragma solidity ^0.4.18;
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import "./Ownable.sol";
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/**
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* @title Pausable
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* @dev Makes contract functions pausable by the owner
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*/
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contract Pausable is Ownable {
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event Paused();
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event Unpaused();
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bool public paused;
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function Pausable() internal {
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paused = false;
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}
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modifier whenNotPaused() {
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require(!paused);
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_;
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}
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modifier whenPaused() {
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require(paused);
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_;
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}
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/**
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* @dev Disables contract functions marked with "whenNotPaused" and enables the use of functions marked with "whenPaused"
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* Only the owner of the contract can invoke this function
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*/
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function pause() external onlyOwner whenNotPaused {
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paused = true;
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Paused();
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}
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/**
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* @dev Enables contract functions marked with "whenNotPaused" and disables the use of functions marked with "whenPaused"
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* Only the owner of the contract can invoke this function
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*/
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function unpause() external onlyOwner whenPaused {
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paused = false;
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Unpaused();
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}
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}
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