Contract Overview
Balance:
0 Ether
More Info
My Name Tag:
Not Available
Txn Hash |
Method
|
Block
|
From
|
To
|
Value | ||||
---|---|---|---|---|---|---|---|---|---|
0x0893b4f069ccdf33bc1b9d2633d7dbbf7cf43d8cb0df360a5dd0214b6fbe12ac | Nominate New Own... | 29266429 | 170 days 21 hrs ago | 0x73570075092502472e4b61a7058df1a4a1db12f2 | IN | 0x9880cfa7b81e8841e216ebb32687a2c9551ae333 | 0 Ether | 0.00004709 | |
0x32c6b55b8e3df40b10db0a8f486622bf3d6d5c55367824bea4367cad39bcaf8a | Accept Ownership | 24338655 | 441 days 3 hrs ago | 0x73570075092502472e4b61a7058df1a4a1db12f2 | IN | 0x9880cfa7b81e8841e216ebb32687a2c9551ae333 | 0 Ether | 0.00002171 | |
0x09048e9f8e9993942f970192520c173cfebbb352431bcfba45d92c8bf6932716 | Nominate New Own... | 24337730 | 441 days 4 hrs ago | 0xb64ff7a4a33acdf48d97dab0d764afd0f6176882 | IN | 0x9880cfa7b81e8841e216ebb32687a2c9551ae333 | 0 Ether | 0.00004448 | |
0x03745b81207575e0c4b28afe87aa0757d79f8229d1cdc83f567f05ed889b4a7c | 0x60806040 | 22714505 | 559 days 11 hrs ago | 0xb64ff7a4a33acdf48d97dab0d764afd0f6176882 | IN | Contract Creation | 0 Ether | 0.00349522 |
[ Download CSV Export ]
Latest 25 internal transaction
[ Download CSV Export ]
This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.
Similar Match Source Code
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0xb3f3aB94158d2916a794b3cC99Ba77394DD33C87
Contract Name:
Liquidations
Compiler Version
v0.5.16+commit.9c3226ce
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2020-12-21 */ /* ____ __ __ __ _ / __/__ __ ___ / /_ / / ___ / /_ (_)__ __ _\ \ / // // _ \/ __// _ \/ -_)/ __// / \ \ / /___/ \_, //_//_/\__//_//_/\__/ \__//_/ /_\_\ /___/ * Synthetix: Liquidations.sol * * Latest source (may be newer): https://github.com/Synthetixio/synthetix/blob/master/contracts/Liquidations.sol * Docs: https://docs.synthetix.io/contracts/Liquidations * * Contract Dependencies: * - IAddressResolver * - ILiquidations * - MixinResolver * - MixinSystemSettings * - Owned * - State * Libraries: * - SafeDecimalMath * - SafeMath * * MIT License * =========== * * Copyright (c) 2020 Synthetix * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE */ pragma solidity ^0.5.16; // https://docs.synthetix.io/contracts/source/contracts/owned contract Owned { address public owner; address public nominatedOwner; constructor(address _owner) public { require(_owner != address(0), "Owner address cannot be 0"); owner = _owner; emit OwnerChanged(address(0), _owner); } function nominateNewOwner(address _owner) external onlyOwner { nominatedOwner = _owner; emit OwnerNominated(_owner); } function acceptOwnership() external { require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership"); emit OwnerChanged(owner, nominatedOwner); owner = nominatedOwner; nominatedOwner = address(0); } modifier onlyOwner { _onlyOwner(); _; } function _onlyOwner() private view { require(msg.sender == owner, "Only the contract owner may perform this action"); } event OwnerNominated(address newOwner); event OwnerChanged(address oldOwner, address newOwner); } // https://docs.synthetix.io/contracts/source/interfaces/iaddressresolver interface IAddressResolver { function getAddress(bytes32 name) external view returns (address); function getSynth(bytes32 key) external view returns (address); function requireAndGetAddress(bytes32 name, string calldata reason) external view returns (address); } // https://docs.synthetix.io/contracts/source/interfaces/isynth interface ISynth { // Views function currencyKey() external view returns (bytes32); function transferableSynths(address account) external view returns (uint); // Mutative functions function transferAndSettle(address to, uint value) external returns (bool); function transferFromAndSettle( address from, address to, uint value ) external returns (bool); // Restricted: used internally to Synthetix function burn(address account, uint amount) external; function issue(address account, uint amount) external; } // https://docs.synthetix.io/contracts/source/interfaces/iissuer interface IIssuer { // Views function anySynthOrSNXRateIsInvalid() external view returns (bool anyRateInvalid); function availableCurrencyKeys() external view returns (bytes32[] memory); function availableSynthCount() external view returns (uint); function availableSynths(uint index) external view returns (ISynth); function canBurnSynths(address account) external view returns (bool); function collateral(address account) external view returns (uint); function collateralisationRatio(address issuer) external view returns (uint); function collateralisationRatioAndAnyRatesInvalid(address _issuer) external view returns (uint cratio, bool anyRateIsInvalid); function debtBalanceOf(address issuer, bytes32 currencyKey) external view returns (uint debtBalance); function issuanceRatio() external view returns (uint); function lastIssueEvent(address account) external view returns (uint); function maxIssuableSynths(address issuer) external view returns (uint maxIssuable); function minimumStakeTime() external view returns (uint); function remainingIssuableSynths(address issuer) external view returns ( uint maxIssuable, uint alreadyIssued, uint totalSystemDebt ); function synths(bytes32 currencyKey) external view returns (ISynth); function getSynths(bytes32[] calldata currencyKeys) external view returns (ISynth[] memory); function synthsByAddress(address synthAddress) external view returns (bytes32); function totalIssuedSynths(bytes32 currencyKey, bool excludeEtherCollateral) external view returns (uint); function transferableSynthetixAndAnyRateIsInvalid(address account, uint balance) external view returns (uint transferable, bool anyRateIsInvalid); // Restricted: used internally to Synthetix function issueSynths(address from, uint amount) external; function issueSynthsOnBehalf( address issueFor, address from, uint amount ) external; function issueMaxSynths(address from) external; function issueMaxSynthsOnBehalf(address issueFor, address from) external; function burnSynths(address from, uint amount) external; function burnSynthsOnBehalf( address burnForAddress, address from, uint amount ) external; function burnSynthsToTarget(address from) external; function burnSynthsToTargetOnBehalf(address burnForAddress, address from) external; function liquidateDelinquentAccount( address account, uint susdAmount, address liquidator ) external returns (uint totalRedeemed, uint amountToLiquidate); } // Inheritance // Internal references // https://docs.synthetix.io/contracts/source/contracts/addressresolver contract AddressResolver is Owned, IAddressResolver { mapping(bytes32 => address) public repository; constructor(address _owner) public Owned(_owner) {} /* ========== RESTRICTED FUNCTIONS ========== */ function importAddresses(bytes32[] calldata names, address[] calldata destinations) external onlyOwner { require(names.length == destinations.length, "Input lengths must match"); for (uint i = 0; i < names.length; i++) { bytes32 name = names[i]; address destination = destinations[i]; repository[name] = destination; emit AddressImported(name, destination); } } /* ========= PUBLIC FUNCTIONS ========== */ function rebuildCaches(MixinResolver[] calldata destinations) external { for (uint i = 0; i < destinations.length; i++) { destinations[i].rebuildCache(); } } /* ========== VIEWS ========== */ function areAddressesImported(bytes32[] calldata names, address[] calldata destinations) external view returns (bool) { for (uint i = 0; i < names.length; i++) { if (repository[names[i]] != destinations[i]) { return false; } } return true; } function getAddress(bytes32 name) external view returns (address) { return repository[name]; } function requireAndGetAddress(bytes32 name, string calldata reason) external view returns (address) { address _foundAddress = repository[name]; require(_foundAddress != address(0), reason); return _foundAddress; } function getSynth(bytes32 key) external view returns (address) { IIssuer issuer = IIssuer(repository["Issuer"]); require(address(issuer) != address(0), "Cannot find Issuer address"); return address(issuer.synths(key)); } /* ========== EVENTS ========== */ event AddressImported(bytes32 name, address destination); } // solhint-disable payable-fallback // https://docs.synthetix.io/contracts/source/contracts/readproxy contract ReadProxy is Owned { address public target; constructor(address _owner) public Owned(_owner) {} function setTarget(address _target) external onlyOwner { target = _target; emit TargetUpdated(target); } function() external { // The basics of a proxy read call // Note that msg.sender in the underlying will always be the address of this contract. assembly { calldatacopy(0, 0, calldatasize) // Use of staticcall - this will revert if the underlying function mutates state let result := staticcall(gas, sload(target_slot), 0, calldatasize, 0, 0) returndatacopy(0, 0, returndatasize) if iszero(result) { revert(0, returndatasize) } return(0, returndatasize) } } event TargetUpdated(address newTarget); } // Inheritance // Internal references // https://docs.synthetix.io/contracts/source/contracts/mixinresolver contract MixinResolver { AddressResolver public resolver; mapping(bytes32 => address) private addressCache; constructor(address _resolver) internal { resolver = AddressResolver(_resolver); } /* ========== INTERNAL FUNCTIONS ========== */ function combineArrays(bytes32[] memory first, bytes32[] memory second) internal pure returns (bytes32[] memory combination) { combination = new bytes32[](first.length + second.length); for (uint i = 0; i < first.length; i++) { combination[i] = first[i]; } for (uint j = 0; j < second.length; j++) { combination[first.length + j] = second[j]; } } /* ========== PUBLIC FUNCTIONS ========== */ // Note: this function is public not external in order for it to be overridden and invoked via super in subclasses function resolverAddressesRequired() public view returns (bytes32[] memory addresses) {} function rebuildCache() external { bytes32[] memory requiredAddresses = resolverAddressesRequired(); // The resolver must call this function whenver it updates its state for (uint i = 0; i < requiredAddresses.length; i++) { bytes32 name = requiredAddresses[i]; // Note: can only be invoked once the resolver has all the targets needed added address destination = resolver.requireAndGetAddress( name, string(abi.encodePacked("Resolver missing target: ", name)) ); addressCache[name] = destination; emit CacheUpdated(name, destination); } } /* ========== VIEWS ========== */ function isResolverCached() external view returns (bool) { bytes32[] memory requiredAddresses = resolverAddressesRequired(); for (uint i = 0; i < requiredAddresses.length; i++) { bytes32 name = requiredAddresses[i]; // false if our cache is invalid or if the resolver doesn't have the required address if (resolver.getAddress(name) != addressCache[name] || addressCache[name] == address(0)) { return false; } } return true; } /* ========== INTERNAL FUNCTIONS ========== */ function requireAndGetAddress(bytes32 name) internal view returns (address) { address _foundAddress = addressCache[name]; require(_foundAddress != address(0), string(abi.encodePacked("Missing address: ", name))); return _foundAddress; } /* ========== EVENTS ========== */ event CacheUpdated(bytes32 name, address destination); } // https://docs.synthetix.io/contracts/source/interfaces/iflexiblestorage interface IFlexibleStorage { // Views function getUIntValue(bytes32 contractName, bytes32 record) external view returns (uint); function getUIntValues(bytes32 contractName, bytes32[] calldata records) external view returns (uint[] memory); function getIntValue(bytes32 contractName, bytes32 record) external view returns (int); function getIntValues(bytes32 contractName, bytes32[] calldata records) external view returns (int[] memory); function getAddressValue(bytes32 contractName, bytes32 record) external view returns (address); function getAddressValues(bytes32 contractName, bytes32[] calldata records) external view returns (address[] memory); function getBoolValue(bytes32 contractName, bytes32 record) external view returns (bool); function getBoolValues(bytes32 contractName, bytes32[] calldata records) external view returns (bool[] memory); function getBytes32Value(bytes32 contractName, bytes32 record) external view returns (bytes32); function getBytes32Values(bytes32 contractName, bytes32[] calldata records) external view returns (bytes32[] memory); // Mutative functions function deleteUIntValue(bytes32 contractName, bytes32 record) external; function deleteIntValue(bytes32 contractName, bytes32 record) external; function deleteAddressValue(bytes32 contractName, bytes32 record) external; function deleteBoolValue(bytes32 contractName, bytes32 record) external; function deleteBytes32Value(bytes32 contractName, bytes32 record) external; function setUIntValue( bytes32 contractName, bytes32 record, uint value ) external; function setUIntValues( bytes32 contractName, bytes32[] calldata records, uint[] calldata values ) external; function setIntValue( bytes32 contractName, bytes32 record, int value ) external; function setIntValues( bytes32 contractName, bytes32[] calldata records, int[] calldata values ) external; function setAddressValue( bytes32 contractName, bytes32 record, address value ) external; function setAddressValues( bytes32 contractName, bytes32[] calldata records, address[] calldata values ) external; function setBoolValue( bytes32 contractName, bytes32 record, bool value ) external; function setBoolValues( bytes32 contractName, bytes32[] calldata records, bool[] calldata values ) external; function setBytes32Value( bytes32 contractName, bytes32 record, bytes32 value ) external; function setBytes32Values( bytes32 contractName, bytes32[] calldata records, bytes32[] calldata values ) external; } // Internal references // https://docs.synthetix.io/contracts/source/contracts/mixinsystemsettings contract MixinSystemSettings is MixinResolver { bytes32 internal constant SETTING_CONTRACT_NAME = "SystemSettings"; bytes32 internal constant SETTING_WAITING_PERIOD_SECS = "waitingPeriodSecs"; bytes32 internal constant SETTING_PRICE_DEVIATION_THRESHOLD_FACTOR = "priceDeviationThresholdFactor"; bytes32 internal constant SETTING_ISSUANCE_RATIO = "issuanceRatio"; bytes32 internal constant SETTING_FEE_PERIOD_DURATION = "feePeriodDuration"; bytes32 internal constant SETTING_TARGET_THRESHOLD = "targetThreshold"; bytes32 internal constant SETTING_LIQUIDATION_DELAY = "liquidationDelay"; bytes32 internal constant SETTING_LIQUIDATION_RATIO = "liquidationRatio"; bytes32 internal constant SETTING_LIQUIDATION_PENALTY = "liquidationPenalty"; bytes32 internal constant SETTING_RATE_STALE_PERIOD = "rateStalePeriod"; bytes32 internal constant SETTING_EXCHANGE_FEE_RATE = "exchangeFeeRate"; bytes32 internal constant SETTING_MINIMUM_STAKE_TIME = "minimumStakeTime"; bytes32 internal constant SETTING_AGGREGATOR_WARNING_FLAGS = "aggregatorWarningFlags"; bytes32 internal constant SETTING_TRADING_REWARDS_ENABLED = "tradingRewardsEnabled"; bytes32 internal constant SETTING_DEBT_SNAPSHOT_STALE_TIME = "debtSnapshotStaleTime"; bytes32 internal constant SETTING_CROSS_DOMAIN_MESSAGE_GAS_LIMIT = "crossDomainMessageGasLimit"; bytes32 internal constant CONTRACT_FLEXIBLESTORAGE = "FlexibleStorage"; constructor(address _resolver) internal MixinResolver(_resolver) {} function resolverAddressesRequired() public view returns (bytes32[] memory addresses) { addresses = new bytes32[](1); addresses[0] = CONTRACT_FLEXIBLESTORAGE; } function flexibleStorage() internal view returns (IFlexibleStorage) { return IFlexibleStorage(requireAndGetAddress(CONTRACT_FLEXIBLESTORAGE)); } function getCrossDomainMessageGasLimit() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_CROSS_DOMAIN_MESSAGE_GAS_LIMIT); } function getTradingRewardsEnabled() internal view returns (bool) { return flexibleStorage().getBoolValue(SETTING_CONTRACT_NAME, SETTING_TRADING_REWARDS_ENABLED); } function getWaitingPeriodSecs() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_WAITING_PERIOD_SECS); } function getPriceDeviationThresholdFactor() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_PRICE_DEVIATION_THRESHOLD_FACTOR); } function getIssuanceRatio() internal view returns (uint) { // lookup on flexible storage directly for gas savings (rather than via SystemSettings) return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_ISSUANCE_RATIO); } function getFeePeriodDuration() internal view returns (uint) { // lookup on flexible storage directly for gas savings (rather than via SystemSettings) return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_FEE_PERIOD_DURATION); } function getTargetThreshold() internal view returns (uint) { // lookup on flexible storage directly for gas savings (rather than via SystemSettings) return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_TARGET_THRESHOLD); } function getLiquidationDelay() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_LIQUIDATION_DELAY); } function getLiquidationRatio() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_LIQUIDATION_RATIO); } function getLiquidationPenalty() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_LIQUIDATION_PENALTY); } function getRateStalePeriod() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_RATE_STALE_PERIOD); } function getExchangeFeeRate(bytes32 currencyKey) internal view returns (uint) { return flexibleStorage().getUIntValue( SETTING_CONTRACT_NAME, keccak256(abi.encodePacked(SETTING_EXCHANGE_FEE_RATE, currencyKey)) ); } function getMinimumStakeTime() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_MINIMUM_STAKE_TIME); } function getAggregatorWarningFlags() internal view returns (address) { return flexibleStorage().getAddressValue(SETTING_CONTRACT_NAME, SETTING_AGGREGATOR_WARNING_FLAGS); } function getDebtSnapshotStaleTime() internal view returns (uint) { return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_DEBT_SNAPSHOT_STALE_TIME); } } // https://docs.synthetix.io/contracts/source/interfaces/iliquidations interface ILiquidations { // Views function isOpenForLiquidation(address account) external view returns (bool); function getLiquidationDeadlineForAccount(address account) external view returns (uint); function isLiquidationDeadlinePassed(address account) external view returns (bool); function liquidationDelay() external view returns (uint); function liquidationRatio() external view returns (uint); function liquidationPenalty() external view returns (uint); function calculateAmountToFixCollateral(uint debtBalance, uint collateral) external view returns (uint); // Mutative Functions function flagAccountForLiquidation(address account) external; // Restricted: used internally to Synthetix function removeAccountInLiquidation(address account) external; function checkAndRemoveAccountInLiquidation(address account) external; } /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; } } // Libraries // https://docs.synthetix.io/contracts/source/libraries/safedecimalmath library SafeDecimalMath { using SafeMath for uint; /* Number of decimal places in the representations. */ uint8 public constant decimals = 18; uint8 public constant highPrecisionDecimals = 27; /* The number representing 1.0. */ uint public constant UNIT = 10**uint(decimals); /* The number representing 1.0 for higher fidelity numbers. */ uint public constant PRECISE_UNIT = 10**uint(highPrecisionDecimals); uint private constant UNIT_TO_HIGH_PRECISION_CONVERSION_FACTOR = 10**uint(highPrecisionDecimals - decimals); /** * @return Provides an interface to UNIT. */ function unit() external pure returns (uint) { return UNIT; } /** * @return Provides an interface to PRECISE_UNIT. */ function preciseUnit() external pure returns (uint) { return PRECISE_UNIT; } /** * @return The result of multiplying x and y, interpreting the operands as fixed-point * decimals. * * @dev A unit factor is divided out after the product of x and y is evaluated, * so that product must be less than 2**256. As this is an integer division, * the internal division always rounds down. This helps save on gas. Rounding * is more expensive on gas. */ function multiplyDecimal(uint x, uint y) internal pure returns (uint) { /* Divide by UNIT to remove the extra factor introduced by the product. */ return x.mul(y) / UNIT; } /** * @return The result of safely multiplying x and y, interpreting the operands * as fixed-point decimals of the specified precision unit. * * @dev The operands should be in the form of a the specified unit factor which will be * divided out after the product of x and y is evaluated, so that product must be * less than 2**256. * * Unlike multiplyDecimal, this function rounds the result to the nearest increment. * Rounding is useful when you need to retain fidelity for small decimal numbers * (eg. small fractions or percentages). */ function _multiplyDecimalRound( uint x, uint y, uint precisionUnit ) private pure returns (uint) { /* Divide by UNIT to remove the extra factor introduced by the product. */ uint quotientTimesTen = x.mul(y) / (precisionUnit / 10); if (quotientTimesTen % 10 >= 5) { quotientTimesTen += 10; } return quotientTimesTen / 10; } /** * @return The result of safely multiplying x and y, interpreting the operands * as fixed-point decimals of a precise unit. * * @dev The operands should be in the precise unit factor which will be * divided out after the product of x and y is evaluated, so that product must be * less than 2**256. * * Unlike multiplyDecimal, this function rounds the result to the nearest increment. * Rounding is useful when you need to retain fidelity for small decimal numbers * (eg. small fractions or percentages). */ function multiplyDecimalRoundPrecise(uint x, uint y) internal pure returns (uint) { return _multiplyDecimalRound(x, y, PRECISE_UNIT); } /** * @return The result of safely multiplying x and y, interpreting the operands * as fixed-point decimals of a standard unit. * * @dev The operands should be in the standard unit factor which will be * divided out after the product of x and y is evaluated, so that product must be * less than 2**256. * * Unlike multiplyDecimal, this function rounds the result to the nearest increment. * Rounding is useful when you need to retain fidelity for small decimal numbers * (eg. small fractions or percentages). */ function multiplyDecimalRound(uint x, uint y) internal pure returns (uint) { return _multiplyDecimalRound(x, y, UNIT); } /** * @return The result of safely dividing x and y. The return value is a high * precision decimal. * * @dev y is divided after the product of x and the standard precision unit * is evaluated, so the product of x and UNIT must be less than 2**256. As * this is an integer division, the result is always rounded down. * This helps save on gas. Rounding is more expensive on gas. */ function divideDecimal(uint x, uint y) internal pure returns (uint) { /* Reintroduce the UNIT factor that will be divided out by y. */ return x.mul(UNIT).div(y); } /** * @return The result of safely dividing x and y. The return value is as a rounded * decimal in the precision unit specified in the parameter. * * @dev y is divided after the product of x and the specified precision unit * is evaluated, so the product of x and the specified precision unit must * be less than 2**256. The result is rounded to the nearest increment. */ function _divideDecimalRound( uint x, uint y, uint precisionUnit ) private pure returns (uint) { uint resultTimesTen = x.mul(precisionUnit * 10).div(y); if (resultTimesTen % 10 >= 5) { resultTimesTen += 10; } return resultTimesTen / 10; } /** * @return The result of safely dividing x and y. The return value is as a rounded * standard precision decimal. * * @dev y is divided after the product of x and the standard precision unit * is evaluated, so the product of x and the standard precision unit must * be less than 2**256. The result is rounded to the nearest increment. */ function divideDecimalRound(uint x, uint y) internal pure returns (uint) { return _divideDecimalRound(x, y, UNIT); } /** * @return The result of safely dividing x and y. The return value is as a rounded * high precision decimal. * * @dev y is divided after the product of x and the high precision unit * is evaluated, so the product of x and the high precision unit must * be less than 2**256. The result is rounded to the nearest increment. */ function divideDecimalRoundPrecise(uint x, uint y) internal pure returns (uint) { return _divideDecimalRound(x, y, PRECISE_UNIT); } /** * @dev Convert a standard decimal representation to a high precision one. */ function decimalToPreciseDecimal(uint i) internal pure returns (uint) { return i.mul(UNIT_TO_HIGH_PRECISION_CONVERSION_FACTOR); } /** * @dev Convert a high precision decimal to a standard decimal representation. */ function preciseDecimalToDecimal(uint i) internal pure returns (uint) { uint quotientTimesTen = i / (UNIT_TO_HIGH_PRECISION_CONVERSION_FACTOR / 10); if (quotientTimesTen % 10 >= 5) { quotientTimesTen += 10; } return quotientTimesTen / 10; } } // Inheritance // https://docs.synthetix.io/contracts/source/contracts/state contract State is Owned { // the address of the contract that can modify variables // this can only be changed by the owner of this contract address public associatedContract; constructor(address _associatedContract) internal { // This contract is abstract, and thus cannot be instantiated directly require(owner != address(0), "Owner must be set"); associatedContract = _associatedContract; emit AssociatedContractUpdated(_associatedContract); } /* ========== SETTERS ========== */ // Change the associated contract to a new address function setAssociatedContract(address _associatedContract) external onlyOwner { associatedContract = _associatedContract; emit AssociatedContractUpdated(_associatedContract); } /* ========== MODIFIERS ========== */ modifier onlyAssociatedContract { require(msg.sender == associatedContract, "Only the associated contract can perform this action"); _; } /* ========== EVENTS ========== */ event AssociatedContractUpdated(address associatedContract); } // Inheritance // https://docs.synthetix.io/contracts/source/contracts/eternalstorage /** * @notice This contract is based on the code available from this blog * https://blog.colony.io/writing-upgradeable-contracts-in-solidity-6743f0eecc88/ * Implements support for storing a keccak256 key and value pairs. It is the more flexible * and extensible option. This ensures data schema changes can be implemented without * requiring upgrades to the storage contract. */ contract EternalStorage is Owned, State { constructor(address _owner, address _associatedContract) public Owned(_owner) State(_associatedContract) {} /* ========== DATA TYPES ========== */ mapping(bytes32 => uint) internal UIntStorage; mapping(bytes32 => string) internal StringStorage; mapping(bytes32 => address) internal AddressStorage; mapping(bytes32 => bytes) internal BytesStorage; mapping(bytes32 => bytes32) internal Bytes32Storage; mapping(bytes32 => bool) internal BooleanStorage; mapping(bytes32 => int) internal IntStorage; // UIntStorage; function getUIntValue(bytes32 record) external view returns (uint) { return UIntStorage[record]; } function setUIntValue(bytes32 record, uint value) external onlyAssociatedContract { UIntStorage[record] = value; } function deleteUIntValue(bytes32 record) external onlyAssociatedContract { delete UIntStorage[record]; } // StringStorage function getStringValue(bytes32 record) external view returns (string memory) { return StringStorage[record]; } function setStringValue(bytes32 record, string calldata value) external onlyAssociatedContract { StringStorage[record] = value; } function deleteStringValue(bytes32 record) external onlyAssociatedContract { delete StringStorage[record]; } // AddressStorage function getAddressValue(bytes32 record) external view returns (address) { return AddressStorage[record]; } function setAddressValue(bytes32 record, address value) external onlyAssociatedContract { AddressStorage[record] = value; } function deleteAddressValue(bytes32 record) external onlyAssociatedContract { delete AddressStorage[record]; } // BytesStorage function getBytesValue(bytes32 record) external view returns (bytes memory) { return BytesStorage[record]; } function setBytesValue(bytes32 record, bytes calldata value) external onlyAssociatedContract { BytesStorage[record] = value; } function deleteBytesValue(bytes32 record) external onlyAssociatedContract { delete BytesStorage[record]; } // Bytes32Storage function getBytes32Value(bytes32 record) external view returns (bytes32) { return Bytes32Storage[record]; } function setBytes32Value(bytes32 record, bytes32 value) external onlyAssociatedContract { Bytes32Storage[record] = value; } function deleteBytes32Value(bytes32 record) external onlyAssociatedContract { delete Bytes32Storage[record]; } // BooleanStorage function getBooleanValue(bytes32 record) external view returns (bool) { return BooleanStorage[record]; } function setBooleanValue(bytes32 record, bool value) external onlyAssociatedContract { BooleanStorage[record] = value; } function deleteBooleanValue(bytes32 record) external onlyAssociatedContract { delete BooleanStorage[record]; } // IntStorage function getIntValue(bytes32 record) external view returns (int) { return IntStorage[record]; } function setIntValue(bytes32 record, int value) external onlyAssociatedContract { IntStorage[record] = value; } function deleteIntValue(bytes32 record) external onlyAssociatedContract { delete IntStorage[record]; } } interface IVirtualSynth { // Views function balanceOfUnderlying(address account) external view returns (uint); function rate() external view returns (uint); function readyToSettle() external view returns (bool); function secsLeftInWaitingPeriod() external view returns (uint); function settled() external view returns (bool); function synth() external view returns (ISynth); // Mutative functions function settle(address account) external; } // https://docs.synthetix.io/contracts/source/interfaces/isynthetix interface ISynthetix { // Views function anySynthOrSNXRateIsInvalid() external view returns (bool anyRateInvalid); function availableCurrencyKeys() external view returns (bytes32[] memory); function availableSynthCount() external view returns (uint); function availableSynths(uint index) external view returns (ISynth); function collateral(address account) external view returns (uint); function collateralisationRatio(address issuer) external view returns (uint); function debtBalanceOf(address issuer, bytes32 currencyKey) external view returns (uint); function isWaitingPeriod(bytes32 currencyKey) external view returns (bool); function maxIssuableSynths(address issuer) external view returns (uint maxIssuable); function remainingIssuableSynths(address issuer) external view returns ( uint maxIssuable, uint alreadyIssued, uint totalSystemDebt ); function synths(bytes32 currencyKey) external view returns (ISynth); function synthsByAddress(address synthAddress) external view returns (bytes32); function totalIssuedSynths(bytes32 currencyKey) external view returns (uint); function totalIssuedSynthsExcludeEtherCollateral(bytes32 currencyKey) external view returns (uint); function transferableSynthetix(address account) external view returns (uint transferable); // Mutative Functions function burnSynths(uint amount) external; function burnSynthsOnBehalf(address burnForAddress, uint amount) external; function burnSynthsToTarget() external; function burnSynthsToTargetOnBehalf(address burnForAddress) external; function exchange( bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey ) external returns (uint amountReceived); function exchangeOnBehalf( address exchangeForAddress, bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey ) external returns (uint amountReceived); function exchangeWithTracking( bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey, address originator, bytes32 trackingCode ) external returns (uint amountReceived); function exchangeOnBehalfWithTracking( address exchangeForAddress, bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey, address originator, bytes32 trackingCode ) external returns (uint amountReceived); function exchangeWithVirtual( bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey, bytes32 trackingCode ) external returns (uint amountReceived, IVirtualSynth vSynth); function issueMaxSynths() external; function issueMaxSynthsOnBehalf(address issueForAddress) external; function issueSynths(uint amount) external; function issueSynthsOnBehalf(address issueForAddress, uint amount) external; function mint() external returns (bool); function settle(bytes32 currencyKey) external returns ( uint reclaimed, uint refunded, uint numEntries ); function liquidateDelinquentAccount(address account, uint susdAmount) external returns (bool); // Restricted Functions function mintSecondary(address account, uint amount) external; function mintSecondaryRewards(uint amount) external; function burnSecondary(address account, uint amount) external; } // https://docs.synthetix.io/contracts/source/interfaces/iexchangerates interface IExchangeRates { // Structs struct RateAndUpdatedTime { uint216 rate; uint40 time; } struct InversePricing { uint entryPoint; uint upperLimit; uint lowerLimit; bool frozenAtUpperLimit; bool frozenAtLowerLimit; } // Views function aggregators(bytes32 currencyKey) external view returns (address); function aggregatorWarningFlags() external view returns (address); function anyRateIsInvalid(bytes32[] calldata currencyKeys) external view returns (bool); function canFreezeRate(bytes32 currencyKey) external view returns (bool); function currentRoundForRate(bytes32 currencyKey) external view returns (uint); function currenciesUsingAggregator(address aggregator) external view returns (bytes32[] memory); function effectiveValue( bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey ) external view returns (uint value); function effectiveValueAndRates( bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey ) external view returns ( uint value, uint sourceRate, uint destinationRate ); function effectiveValueAtRound( bytes32 sourceCurrencyKey, uint sourceAmount, bytes32 destinationCurrencyKey, uint roundIdForSrc, uint roundIdForDest ) external view returns (uint value); function getCurrentRoundId(bytes32 currencyKey) external view returns (uint); function getLastRoundIdBeforeElapsedSecs( bytes32 currencyKey, uint startingRoundId, uint startingTimestamp, uint timediff ) external view returns (uint); function inversePricing(bytes32 currencyKey) external view returns ( uint entryPoint, uint upperLimit, uint lowerLimit, bool frozenAtUpperLimit, bool frozenAtLowerLimit ); function lastRateUpdateTimes(bytes32 currencyKey) external view returns (uint256); function oracle() external view returns (address); function rateAndTimestampAtRound(bytes32 currencyKey, uint roundId) external view returns (uint rate, uint time); function rateAndUpdatedTime(bytes32 currencyKey) external view returns (uint rate, uint time); function rateAndInvalid(bytes32 currencyKey) external view returns (uint rate, bool isInvalid); function rateForCurrency(bytes32 currencyKey) external view returns (uint); function rateIsFlagged(bytes32 currencyKey) external view returns (bool); function rateIsFrozen(bytes32 currencyKey) external view returns (bool); function rateIsInvalid(bytes32 currencyKey) external view returns (bool); function rateIsStale(bytes32 currencyKey) external view returns (bool); function rateStalePeriod() external view returns (uint); function ratesAndUpdatedTimeForCurrencyLastNRounds(bytes32 currencyKey, uint numRounds) external view returns (uint[] memory rates, uint[] memory times); function ratesAndInvalidForCurrencies(bytes32[] calldata currencyKeys) external view returns (uint[] memory rates, bool anyRateInvalid); function ratesForCurrencies(bytes32[] calldata currencyKeys) external view returns (uint[] memory); // Mutative functions function freezeRate(bytes32 currencyKey) external; } // https://docs.synthetix.io/contracts/source/interfaces/isystemstatus interface ISystemStatus { struct Status { bool canSuspend; bool canResume; } struct Suspension { bool suspended; // reason is an integer code, // 0 => no reason, 1 => upgrading, 2+ => defined by system usage uint248 reason; } // Views function accessControl(bytes32 section, address account) external view returns (bool canSuspend, bool canResume); function requireSystemActive() external view; function requireIssuanceActive() external view; function requireExchangeActive() external view; function requireSynthActive(bytes32 currencyKey) external view; function requireSynthsActive(bytes32 sourceCurrencyKey, bytes32 destinationCurrencyKey) external view; function synthSuspension(bytes32 currencyKey) external view returns (bool suspended, uint248 reason); // Restricted functions function suspendSynth(bytes32 currencyKey, uint256 reason) external; function updateAccessControl( bytes32 section, address account, bool canSuspend, bool canResume ) external; } // Inheritance // Libraries // Internal references // https://docs.synthetix.io/contracts/source/contracts/liquidations contract Liquidations is Owned, MixinSystemSettings, ILiquidations { using SafeMath for uint; using SafeDecimalMath for uint; struct LiquidationEntry { uint deadline; address caller; } /* ========== ADDRESS RESOLVER CONFIGURATION ========== */ bytes32 private constant CONTRACT_SYSTEMSTATUS = "SystemStatus"; bytes32 private constant CONTRACT_SYNTHETIX = "Synthetix"; bytes32 private constant CONTRACT_ETERNALSTORAGE_LIQUIDATIONS = "EternalStorageLiquidations"; bytes32 private constant CONTRACT_ISSUER = "Issuer"; bytes32 private constant CONTRACT_EXRATES = "ExchangeRates"; /* ========== CONSTANTS ========== */ // Storage keys bytes32 public constant LIQUIDATION_DEADLINE = "LiquidationDeadline"; bytes32 public constant LIQUIDATION_CALLER = "LiquidationCaller"; constructor(address _owner, address _resolver) public Owned(_owner) MixinSystemSettings(_resolver) {} /* ========== VIEWS ========== */ function resolverAddressesRequired() public view returns (bytes32[] memory addresses) { bytes32[] memory existingAddresses = MixinSystemSettings.resolverAddressesRequired(); bytes32[] memory newAddresses = new bytes32[](5); newAddresses[0] = CONTRACT_SYSTEMSTATUS; newAddresses[1] = CONTRACT_SYNTHETIX; newAddresses[2] = CONTRACT_ETERNALSTORAGE_LIQUIDATIONS; newAddresses[3] = CONTRACT_ISSUER; newAddresses[4] = CONTRACT_EXRATES; addresses = combineArrays(existingAddresses, newAddresses); } function synthetix() internal view returns (ISynthetix) { return ISynthetix(requireAndGetAddress(CONTRACT_SYNTHETIX)); } function systemStatus() internal view returns (ISystemStatus) { return ISystemStatus(requireAndGetAddress(CONTRACT_SYSTEMSTATUS)); } function issuer() internal view returns (IIssuer) { return IIssuer(requireAndGetAddress(CONTRACT_ISSUER)); } function exchangeRates() internal view returns (IExchangeRates) { return IExchangeRates(requireAndGetAddress(CONTRACT_EXRATES)); } // refactor to synthetix storage eternal storage contract once that's ready function eternalStorageLiquidations() internal view returns (EternalStorage) { return EternalStorage(requireAndGetAddress(CONTRACT_ETERNALSTORAGE_LIQUIDATIONS)); } function issuanceRatio() external view returns (uint) { return getIssuanceRatio(); } function liquidationDelay() external view returns (uint) { return getLiquidationDelay(); } function liquidationRatio() external view returns (uint) { return getLiquidationRatio(); } function liquidationPenalty() external view returns (uint) { return getLiquidationPenalty(); } function liquidationCollateralRatio() external view returns (uint) { return SafeDecimalMath.unit().divideDecimalRound(getLiquidationRatio()); } function getLiquidationDeadlineForAccount(address account) external view returns (uint) { LiquidationEntry memory liquidation = _getLiquidationEntryForAccount(account); return liquidation.deadline; } function isOpenForLiquidation(address account) external view returns (bool) { uint accountCollateralisationRatio = synthetix().collateralisationRatio(account); // Liquidation closed if collateral ratio less than or equal target issuance Ratio // Account with no snx collateral will also not be open for liquidation (ratio is 0) if (accountCollateralisationRatio <= getIssuanceRatio()) { return false; } LiquidationEntry memory liquidation = _getLiquidationEntryForAccount(account); // liquidation cap at issuanceRatio is checked above if (_deadlinePassed(liquidation.deadline)) { return true; } return false; } function isLiquidationDeadlinePassed(address account) external view returns (bool) { LiquidationEntry memory liquidation = _getLiquidationEntryForAccount(account); return _deadlinePassed(liquidation.deadline); } function _deadlinePassed(uint deadline) internal view returns (bool) { // check deadline is set > 0 // check now > deadline return deadline > 0 && now > deadline; } /** * r = target issuance ratio * D = debt balance * V = Collateral * P = liquidation penalty * Calculates amount of synths = (D - V * r) / (1 - (1 + P) * r) */ function calculateAmountToFixCollateral(uint debtBalance, uint collateral) external view returns (uint) { uint ratio = getIssuanceRatio(); uint unit = SafeDecimalMath.unit(); uint dividend = debtBalance.sub(collateral.multiplyDecimal(ratio)); uint divisor = unit.sub(unit.add(getLiquidationPenalty()).multiplyDecimal(ratio)); return dividend.divideDecimal(divisor); } // get liquidationEntry for account // returns deadline = 0 when not set function _getLiquidationEntryForAccount(address account) internal view returns (LiquidationEntry memory _liquidation) { _liquidation.deadline = eternalStorageLiquidations().getUIntValue(_getKey(LIQUIDATION_DEADLINE, account)); // liquidation caller not used _liquidation.caller = address(0); } function _getKey(bytes32 _scope, address _account) internal pure returns (bytes32) { return keccak256(abi.encodePacked(_scope, _account)); } /* ========== MUTATIVE FUNCTIONS ========== */ // totalIssuedSynths checks synths for staleness // check snx rate is not stale function flagAccountForLiquidation(address account) external rateNotInvalid("SNX") { systemStatus().requireSystemActive(); require(getLiquidationRatio() > 0, "Liquidation ratio not set"); require(getLiquidationDelay() > 0, "Liquidation delay not set"); LiquidationEntry memory liquidation = _getLiquidationEntryForAccount(account); require(liquidation.deadline == 0, "Account already flagged for liquidation"); uint accountsCollateralisationRatio = synthetix().collateralisationRatio(account); // if accounts issuance ratio is greater than or equal to liquidation ratio set liquidation entry require( accountsCollateralisationRatio >= getLiquidationRatio(), "Account issuance ratio is less than liquidation ratio" ); uint deadline = now.add(getLiquidationDelay()); _storeLiquidationEntry(account, deadline, msg.sender); emit AccountFlaggedForLiquidation(account, deadline); } // Internal function to remove account from liquidations // Does not check collateral ratio is fixed function removeAccountInLiquidation(address account) external onlyIssuer { LiquidationEntry memory liquidation = _getLiquidationEntryForAccount(account); if (liquidation.deadline > 0) { _removeLiquidationEntry(account); } } // Public function to allow an account to remove from liquidations // Checks collateral ratio is fixed - below target issuance ratio // Check SNX rate is not stale function checkAndRemoveAccountInLiquidation(address account) external rateNotInvalid("SNX") { systemStatus().requireSystemActive(); LiquidationEntry memory liquidation = _getLiquidationEntryForAccount(account); require(liquidation.deadline > 0, "Account has no liquidation set"); uint accountsCollateralisationRatio = synthetix().collateralisationRatio(account); // Remove from liquidations if accountsCollateralisationRatio is fixed (less than equal target issuance ratio) if (accountsCollateralisationRatio <= getIssuanceRatio()) { _removeLiquidationEntry(account); } } function _storeLiquidationEntry( address _account, uint _deadline, address _caller ) internal { // record liquidation deadline eternalStorageLiquidations().setUIntValue(_getKey(LIQUIDATION_DEADLINE, _account), _deadline); eternalStorageLiquidations().setAddressValue(_getKey(LIQUIDATION_CALLER, _account), _caller); } function _removeLiquidationEntry(address _account) internal { // delete liquidation deadline eternalStorageLiquidations().deleteUIntValue(_getKey(LIQUIDATION_DEADLINE, _account)); // delete liquidation caller eternalStorageLiquidations().deleteAddressValue(_getKey(LIQUIDATION_CALLER, _account)); emit AccountRemovedFromLiquidation(_account, now); } /* ========== MODIFIERS ========== */ modifier onlyIssuer() { require(msg.sender == address(issuer()), "Liquidations: Only the Issuer contract can perform this action"); _; } modifier rateNotInvalid(bytes32 currencyKey) { require(!exchangeRates().rateIsInvalid(currencyKey), "Rate invalid or not a synth"); _; } /* ========== EVENTS ========== */ event AccountFlaggedForLiquidation(address indexed account, uint deadline); event AccountRemovedFromLiquidation(address indexed account, uint time); }
[{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_resolver","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"AccountFlaggedForLiquidation","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"AccountRemovedFromLiquidation","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"name","type":"bytes32"},{"indexed":false,"internalType":"address","name":"destination","type":"address"}],"name":"CacheUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerNominated","type":"event"},{"constant":true,"inputs":[],"name":"LIQUIDATION_CALLER","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"LIQUIDATION_DEADLINE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"debtBalance","type":"uint256"},{"internalType":"uint256","name":"collateral","type":"uint256"}],"name":"calculateAmountToFixCollateral","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"checkAndRemoveAccountInLiquidation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"flagAccountForLiquidation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getLiquidationDeadlineForAccount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isLiquidationDeadlinePassed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isOpenForLiquidation","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isResolverCached","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"issuanceRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"liquidationCollateralRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"liquidationDelay","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"liquidationPenalty","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"liquidationRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"nominateNewOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"nominatedOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"rebuildCache","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"removeAccountInLiquidation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"resolver","outputs":[{"internalType":"contract AddressResolver","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"resolverAddressesRequired","outputs":[{"internalType":"bytes32[]","name":"addresses","type":"bytes32[]"}],"payable":false,"stateMutability":"view","type":"function"}]
Contract Creation Code
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
A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.