9e1c934ffd
* fix: clean up solium linting errors * fix: make various contracts natspec compliant * fix: this.balance deprecated; convert to address(this).balance * fix: contract.call deprecated and switch to gasleft() * fix: ignore empty block rule project-wide * fix: add ignore cases for the rest of the linting warnings
33 lines
868 B
Solidity
33 lines
868 B
Solidity
pragma solidity ^0.4.21;
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/**
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* @title Helps contracts guard agains reentrancy attacks.
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* @author Remco Bloemen <remco@2π.com>
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* @notice If you mark a function `nonReentrant`, you should also
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* mark it `external`.
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*/
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contract ReentrancyGuard {
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/**
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* @dev We use a single lock for the whole contract.
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*/
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bool private reentrancyLock = false;
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/**
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* @dev Prevents a contract from calling itself, directly or indirectly.
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* @notice If you mark a function `nonReentrant`, you should also
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* mark it `external`. Calling one nonReentrant function from
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* another is not supported. Instead, you can implement a
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* `private` function doing the actual work, and a `external`
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* wrapper marked as `nonReentrant`.
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*/
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modifier nonReentrant() {
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require(!reentrancyLock);
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reentrancyLock = true;
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_;
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reentrancyLock = false;
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}
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}
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