62 lines
2.1 KiB
Solidity
62 lines
2.1 KiB
Solidity
pragma solidity 0.4.24;
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import "./Upgradeable.sol";
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import "./InitializableBridge.sol";
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import "openzeppelin-solidity/contracts/AddressUtils.sol";
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import "./Validatable.sol";
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import "./Ownable.sol";
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import "./Claimable.sol";
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import "./VersionableBridge.sol";
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import "./DecimalShiftBridge.sol";
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contract BasicBridge is
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InitializableBridge,
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Validatable,
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Ownable,
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Upgradeable,
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Claimable,
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VersionableBridge,
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DecimalShiftBridge
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{
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event GasPriceChanged(uint256 gasPrice);
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event RequiredBlockConfirmationChanged(uint256 requiredBlockConfirmations);
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bytes32 internal constant GAS_PRICE = 0x55b3774520b5993024893d303890baa4e84b1244a43c60034d1ced2d3cf2b04b; // keccak256(abi.encodePacked("gasPrice"))
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bytes32 internal constant REQUIRED_BLOCK_CONFIRMATIONS = 0x916daedf6915000ff68ced2f0b6773fe6f2582237f92c3c95bb4d79407230071; // keccak256(abi.encodePacked("requiredBlockConfirmations"))
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/**
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* @dev Public setter for fallback gas price value. Only bridge owner can call this method.
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* @param _gasPrice new value for the gas price.
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*/
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function setGasPrice(uint256 _gasPrice) external onlyOwner {
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_setGasPrice(_gasPrice);
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}
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function gasPrice() external view returns (uint256) {
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return uintStorage[GAS_PRICE];
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}
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function setRequiredBlockConfirmations(uint256 _blockConfirmations) external onlyOwner {
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_setRequiredBlockConfirmations(_blockConfirmations);
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}
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function _setRequiredBlockConfirmations(uint256 _blockConfirmations) internal {
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require(_blockConfirmations > 0);
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uintStorage[REQUIRED_BLOCK_CONFIRMATIONS] = _blockConfirmations;
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emit RequiredBlockConfirmationChanged(_blockConfirmations);
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}
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function requiredBlockConfirmations() external view returns (uint256) {
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return uintStorage[REQUIRED_BLOCK_CONFIRMATIONS];
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}
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/**
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* @dev Internal function for updating fallback gas price value.
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* @param _gasPrice new value for the gas price, zero gas price is allowed.
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*/
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function _setGasPrice(uint256 _gasPrice) internal {
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uintStorage[GAS_PRICE] = _gasPrice;
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emit GasPriceChanged(_gasPrice);
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}
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}
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