contract BancorGasPriceLimit is IBancorGasPriceLimit, Owned, Utils {
    uint256 public gasPrice = 0 wei;    // maximum gas price for bancor transactions

    /**
        @dev constructor

        @param _gasPrice    gas price limit
    */
    function BancorGasPriceLimit(uint256 _gasPrice)
        greaterThanZero(_gasPrice)
    {
        gasPrice = _gasPrice;
    }

    /*
        @dev allows the owner to update the gas price limit

        @param _gasPrice    new gas price limit
    */
    function setGasPrice(uint256 _gasPrice)
        public
        ownerOnly
        greaterThanZero(_gasPrice)
    {
        gasPrice = _gasPrice;
    }
}
/*
 The BancorGasPriceLimit contract serves as an extra front-running attack mitigation mechanism.
 It sets a maximum gas price on all bancor conversions, which prevents users from "cutting in line"
 in order to front-run other transactions.
 The gas price limit is universal to all converters and it can be updated by the owner to be in line
 with the network's current gas price.
 */
function setGasPrice(uint256 _gasPrice)
        public
        ownerOnly
        greaterThanZero(_gasPrice)
    {
        gasPrice = _gasPrice;
    }
/*
 @dev allows the owner to update the gas price limit
 
 @param _gasPrice    new gas price limit
 */