mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
44 lines
1.0 KiB
Solidity
44 lines
1.0 KiB
Solidity
pragma solidity ^0.4.11;
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import './Claimable.sol';
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/**
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* @title DelayedClaimable
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* @dev Extension for the Claimable contract, where the ownership needs to be claimed before/after
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* a certain block number.
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*/
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contract DelayedClaimable is Claimable {
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uint256 public end;
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uint256 public start;
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/**
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* @dev Used to specify the time period during which a pending
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* owner can claim ownership.
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* @param _start The earliest time ownership can be claimed.
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* @param _end The latest time ownership can be claimed.
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*/
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function setLimits(uint256 _start, uint256 _end) onlyOwner {
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if (_start > _end)
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throw;
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end = _end;
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start = _start;
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}
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/**
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* @dev Allows the pendingOwner address to finalize the transfer, as long as it is called within
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* the specified start and end time.
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*/
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function claimOwnership() onlyPendingOwner {
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if ((block.number > end) || (block.number < start))
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throw;
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owner = pendingOwner;
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pendingOwner = address(0x0);
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end = 0;
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}
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}
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