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Latest 25 from a total of 1,405 transactions
| Transaction Hash |
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|---|---|---|---|---|---|---|---|---|---|
| Get Reward | 21819986 | 6 days ago | IN | 0 ETH | 0.00025393 | ||||
| Get Reward | 21614362 | 35 days ago | IN | 0 ETH | 0.00122342 | ||||
| Get Reward | 21460750 | 56 days ago | IN | 0 ETH | 0.00184129 | ||||
| Get Reward | 21356497 | 71 days ago | IN | 0 ETH | 0.00283177 | ||||
| Get Reward | 21328402 | 74 days ago | IN | 0 ETH | 0.00578004 | ||||
| Get Reward | 21262812 | 84 days ago | IN | 0 ETH | 0.00152915 | ||||
| Get Reward | 21242945 | 86 days ago | IN | 0 ETH | 0.00277178 | ||||
| Get Reward | 21185573 | 94 days ago | IN | 0 ETH | 0.00994258 | ||||
| Get Reward | 21103842 | 106 days ago | IN | 0 ETH | 0.0010977 | ||||
| Get Reward | 21041057 | 115 days ago | IN | 0 ETH | 0.00139765 | ||||
| Get Reward | 20968854 | 125 days ago | IN | 0 ETH | 0.0028683 | ||||
| Get Reward | 20966474 | 125 days ago | IN | 0 ETH | 0.00460449 | ||||
| Get Reward | 20896170 | 135 days ago | IN | 0 ETH | 0.00093854 | ||||
| Get Reward | 20815678 | 146 days ago | IN | 0 ETH | 0.00741812 | ||||
| Get Reward | 20726421 | 158 days ago | IN | 0 ETH | 0.00094498 | ||||
| Get Reward | 20636914 | 171 days ago | IN | 0 ETH | 0.0003278 | ||||
| Get Reward | 20629675 | 172 days ago | IN | 0 ETH | 0.00042261 | ||||
| Get Reward | 20583641 | 178 days ago | IN | 0 ETH | 0.00033781 | ||||
| Get Reward | 20580872 | 179 days ago | IN | 0 ETH | 0.00026628 | ||||
| Get Reward | 20547301 | 183 days ago | IN | 0 ETH | 0.00029668 | ||||
| Get Reward | 20545269 | 184 days ago | IN | 0 ETH | 0.00027224 | ||||
| Get Reward | 20538905 | 185 days ago | IN | 0 ETH | 0.00028886 | ||||
| Get Reward | 20535067 | 185 days ago | IN | 0 ETH | 0.00139001 | ||||
| Get Reward | 20519255 | 187 days ago | IN | 0 ETH | 0.00043105 | ||||
| Get Reward | 20488134 | 192 days ago | IN | 0 ETH | 0.00053256 |
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Contract Source Code Verified (Exact Match)
Contract Name:
LiquidatorRewards
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 2022-05-14
*/
/*
____ __ __ __ _
/ __/__ __ ___ / /_ / / ___ / /_ (_)__ __
_\ \ / // // _ \/ __// _ \/ -_)/ __// / \ \ /
/___/ \_, //_//_/\__//_//_/\__/ \__//_/ /_\_\
/___/
* Synthetix: LiquidatorRewards.sol
*
* Latest source (may be newer): https://github.com/Synthetixio/synthetix/blob/master/contracts/LiquidatorRewards.sol
* Docs: https://docs.synthetix.io/contracts/LiquidatorRewards
*
* Contract Dependencies:
* - IAddressResolver
* - ILiquidatorRewards
* - MixinResolver
* - MixinSystemSettings
* - Owned
* - ReentrancyGuard
* Libraries:
* - Address
* - SafeDecimalMath
* - SafeERC20
* - SafeMath
* - VestingEntries
*
* MIT License
* ===========
*
* Copyright (c) 2022 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 ^0.5.0;
/**
* @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;
}
}
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see `ERC20Detailed`.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a `Transfer` event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through `transferFrom`. This is
* zero by default.
*
* This value changes when `approve` or `transferFrom` are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* > Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an `Approval` event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a `Transfer` event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to `approve`. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @dev Collection of functions related to the address type,
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* This test is non-exhaustive, and there may be false-negatives: during the
* execution of a contract's constructor, its address will be reported as
* not containing a contract.
*
* > It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*/
function isContract(address account) internal view returns (bool) {
// This method relies in extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
}
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value);
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves.
// A Solidity high level call has three parts:
// 1. The target address is checked to verify it contains contract code
// 2. The call itself is made, and success asserted
// 3. The return value is decoded, which in turn checks the size of the returned data.
// solhint-disable-next-line max-line-length
require(address(token).isContract(), "SafeERC20: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = address(token).call(data);
require(success, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the `nonReentrant` modifier
* available, which can be aplied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*/
contract ReentrancyGuard {
/// @dev counter to allow mutex lock with only one SSTORE operation
uint256 private _guardCounter;
constructor () internal {
// The counter starts at one to prevent changing it from zero to a non-zero
// value, which is a more expensive operation.
_guardCounter = 1;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_guardCounter += 1;
uint256 localCounter = _guardCounter;
_;
require(localCounter == _guardCounter, "ReentrancyGuard: reentrant call");
}
}
// 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 allNetworksDebtInfo()
external
view
returns (
uint256 debt,
uint256 sharesSupply,
bool isStale
);
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 excludeOtherCollateral) 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 burnForRedemption(
address deprecatedSynthProxy,
address account,
uint balance
) external;
function setCurrentPeriodId(uint128 periodId) external;
function liquidateAccount(address account, bool isSelfLiquidation)
external
returns (uint totalRedeemed, uint amountToLiquidate);
function issueSynthsWithoutDebt(
bytes32 currencyKey,
address to,
uint amount
) external returns (bool rateInvalid);
function burnSynthsWithoutDebt(
bytes32 currencyKey,
address to,
uint amount
) external returns (bool rateInvalid);
}
// 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);
}
// 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() public {
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 {
// must match the one defined SystemSettingsLib, defined in both places due to sol v0.5 limitations
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_ESCROW_DURATION = "liquidationEscrowDuration";
bytes32 internal constant SETTING_LIQUIDATION_PENALTY = "liquidationPenalty";
bytes32 internal constant SETTING_SELF_LIQUIDATION_PENALTY = "selfLiquidationPenalty";
bytes32 internal constant SETTING_FLAG_REWARD = "flagReward";
bytes32 internal constant SETTING_LIQUIDATE_REWARD = "liquidateReward";
bytes32 internal constant SETTING_RATE_STALE_PERIOD = "rateStalePeriod";
/* ========== Exchange Fees Related ========== */
bytes32 internal constant SETTING_EXCHANGE_FEE_RATE = "exchangeFeeRate";
bytes32 internal constant SETTING_EXCHANGE_DYNAMIC_FEE_THRESHOLD = "exchangeDynamicFeeThreshold";
bytes32 internal constant SETTING_EXCHANGE_DYNAMIC_FEE_WEIGHT_DECAY = "exchangeDynamicFeeWeightDecay";
bytes32 internal constant SETTING_EXCHANGE_DYNAMIC_FEE_ROUNDS = "exchangeDynamicFeeRounds";
bytes32 internal constant SETTING_EXCHANGE_MAX_DYNAMIC_FEE = "exchangeMaxDynamicFee";
/* ========== End Exchange Fees Related ========== */
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_DEPOSIT_GAS_LIMIT = "crossDomainDepositGasLimit";
bytes32 internal constant SETTING_CROSS_DOMAIN_ESCROW_GAS_LIMIT = "crossDomainEscrowGasLimit";
bytes32 internal constant SETTING_CROSS_DOMAIN_REWARD_GAS_LIMIT = "crossDomainRewardGasLimit";
bytes32 internal constant SETTING_CROSS_DOMAIN_WITHDRAWAL_GAS_LIMIT = "crossDomainWithdrawalGasLimit";
bytes32 internal constant SETTING_CROSS_DOMAIN_FEE_PERIOD_CLOSE_GAS_LIMIT = "crossDomainCloseGasLimit";
bytes32 internal constant SETTING_CROSS_DOMAIN_RELAY_GAS_LIMIT = "crossDomainRelayGasLimit";
bytes32 internal constant SETTING_ETHER_WRAPPER_MAX_ETH = "etherWrapperMaxETH";
bytes32 internal constant SETTING_ETHER_WRAPPER_MINT_FEE_RATE = "etherWrapperMintFeeRate";
bytes32 internal constant SETTING_ETHER_WRAPPER_BURN_FEE_RATE = "etherWrapperBurnFeeRate";
bytes32 internal constant SETTING_WRAPPER_MAX_TOKEN_AMOUNT = "wrapperMaxTokens";
bytes32 internal constant SETTING_WRAPPER_MINT_FEE_RATE = "wrapperMintFeeRate";
bytes32 internal constant SETTING_WRAPPER_BURN_FEE_RATE = "wrapperBurnFeeRate";
bytes32 internal constant SETTING_INTERACTION_DELAY = "interactionDelay";
bytes32 internal constant SETTING_COLLAPSE_FEE_RATE = "collapseFeeRate";
bytes32 internal constant SETTING_ATOMIC_MAX_VOLUME_PER_BLOCK = "atomicMaxVolumePerBlock";
bytes32 internal constant SETTING_ATOMIC_TWAP_WINDOW = "atomicTwapWindow";
bytes32 internal constant SETTING_ATOMIC_EQUIVALENT_FOR_DEX_PRICING = "atomicEquivalentForDexPricing";
bytes32 internal constant SETTING_ATOMIC_EXCHANGE_FEE_RATE = "atomicExchangeFeeRate";
bytes32 internal constant SETTING_ATOMIC_VOLATILITY_CONSIDERATION_WINDOW = "atomicVolConsiderationWindow";
bytes32 internal constant SETTING_ATOMIC_VOLATILITY_UPDATE_THRESHOLD = "atomicVolUpdateThreshold";
bytes32 internal constant SETTING_PURE_CHAINLINK_PRICE_FOR_ATOMIC_SWAPS_ENABLED = "pureChainlinkForAtomicsEnabled";
bytes32 internal constant SETTING_CROSS_SYNTH_TRANSFER_ENABLED = "crossChainSynthTransferEnabled";
bytes32 internal constant CONTRACT_FLEXIBLESTORAGE = "FlexibleStorage";
enum CrossDomainMessageGasLimits {Deposit, Escrow, Reward, Withdrawal, CloseFeePeriod, Relay}
struct DynamicFeeConfig {
uint threshold;
uint weightDecay;
uint rounds;
uint maxFee;
}
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 _getGasLimitSetting(CrossDomainMessageGasLimits gasLimitType) internal pure returns (bytes32) {
if (gasLimitType == CrossDomainMessageGasLimits.Deposit) {
return SETTING_CROSS_DOMAIN_DEPOSIT_GAS_LIMIT;
} else if (gasLimitType == CrossDomainMessageGasLimits.Escrow) {
return SETTING_CROSS_DOMAIN_ESCROW_GAS_LIMIT;
} else if (gasLimitType == CrossDomainMessageGasLimits.Reward) {
return SETTING_CROSS_DOMAIN_REWARD_GAS_LIMIT;
} else if (gasLimitType == CrossDomainMessageGasLimits.Withdrawal) {
return SETTING_CROSS_DOMAIN_WITHDRAWAL_GAS_LIMIT;
} else if (gasLimitType == CrossDomainMessageGasLimits.Relay) {
return SETTING_CROSS_DOMAIN_RELAY_GAS_LIMIT;
} else if (gasLimitType == CrossDomainMessageGasLimits.CloseFeePeriod) {
return SETTING_CROSS_DOMAIN_FEE_PERIOD_CLOSE_GAS_LIMIT;
} else {
revert("Unknown gas limit type");
}
}
function getCrossDomainMessageGasLimit(CrossDomainMessageGasLimits gasLimitType) internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, _getGasLimitSetting(gasLimitType));
}
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 getLiquidationEscrowDuration() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_LIQUIDATION_ESCROW_DURATION);
}
function getLiquidationPenalty() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_LIQUIDATION_PENALTY);
}
function getSelfLiquidationPenalty() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_SELF_LIQUIDATION_PENALTY);
}
function getFlagReward() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_FLAG_REWARD);
}
function getLiquidateReward() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_LIQUIDATE_REWARD);
}
function getRateStalePeriod() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_RATE_STALE_PERIOD);
}
/* ========== Exchange Related Fees ========== */
function getExchangeFeeRate(bytes32 currencyKey) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_EXCHANGE_FEE_RATE, currencyKey))
);
}
/// @notice Get exchange dynamic fee related keys
/// @return threshold, weight decay, rounds, and max fee
function getExchangeDynamicFeeConfig() internal view returns (DynamicFeeConfig memory) {
bytes32[] memory keys = new bytes32[](4);
keys[0] = SETTING_EXCHANGE_DYNAMIC_FEE_THRESHOLD;
keys[1] = SETTING_EXCHANGE_DYNAMIC_FEE_WEIGHT_DECAY;
keys[2] = SETTING_EXCHANGE_DYNAMIC_FEE_ROUNDS;
keys[3] = SETTING_EXCHANGE_MAX_DYNAMIC_FEE;
uint[] memory values = flexibleStorage().getUIntValues(SETTING_CONTRACT_NAME, keys);
return DynamicFeeConfig({threshold: values[0], weightDecay: values[1], rounds: values[2], maxFee: values[3]});
}
/* ========== End Exchange Related Fees ========== */
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);
}
function getEtherWrapperMaxETH() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_ETHER_WRAPPER_MAX_ETH);
}
function getEtherWrapperMintFeeRate() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_ETHER_WRAPPER_MINT_FEE_RATE);
}
function getEtherWrapperBurnFeeRate() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_ETHER_WRAPPER_BURN_FEE_RATE);
}
function getWrapperMaxTokenAmount(address wrapper) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_WRAPPER_MAX_TOKEN_AMOUNT, wrapper))
);
}
function getWrapperMintFeeRate(address wrapper) internal view returns (int) {
return
flexibleStorage().getIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_WRAPPER_MINT_FEE_RATE, wrapper))
);
}
function getWrapperBurnFeeRate(address wrapper) internal view returns (int) {
return
flexibleStorage().getIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_WRAPPER_BURN_FEE_RATE, wrapper))
);
}
function getInteractionDelay(address collateral) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_INTERACTION_DELAY, collateral))
);
}
function getCollapseFeeRate(address collateral) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_COLLAPSE_FEE_RATE, collateral))
);
}
function getAtomicMaxVolumePerBlock() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_ATOMIC_MAX_VOLUME_PER_BLOCK);
}
function getAtomicTwapWindow() internal view returns (uint) {
return flexibleStorage().getUIntValue(SETTING_CONTRACT_NAME, SETTING_ATOMIC_TWAP_WINDOW);
}
function getAtomicEquivalentForDexPricing(bytes32 currencyKey) internal view returns (address) {
return
flexibleStorage().getAddressValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_ATOMIC_EQUIVALENT_FOR_DEX_PRICING, currencyKey))
);
}
function getAtomicExchangeFeeRate(bytes32 currencyKey) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_ATOMIC_EXCHANGE_FEE_RATE, currencyKey))
);
}
function getAtomicVolatilityConsiderationWindow(bytes32 currencyKey) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_ATOMIC_VOLATILITY_CONSIDERATION_WINDOW, currencyKey))
);
}
function getAtomicVolatilityUpdateThreshold(bytes32 currencyKey) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_ATOMIC_VOLATILITY_UPDATE_THRESHOLD, currencyKey))
);
}
function getPureChainlinkPriceForAtomicSwapsEnabled(bytes32 currencyKey) internal view returns (bool) {
return
flexibleStorage().getBoolValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_PURE_CHAINLINK_PRICE_FOR_ATOMIC_SWAPS_ENABLED, currencyKey))
);
}
function getCrossChainSynthTransferEnabled(bytes32 currencyKey) internal view returns (uint) {
return
flexibleStorage().getUIntValue(
SETTING_CONTRACT_NAME,
keccak256(abi.encodePacked(SETTING_CROSS_SYNTH_TRANSFER_ENABLED, currencyKey))
);
}
}
interface ILiquidatorRewards {
// Views
function earned(address account) external view returns (uint256);
// Mutative
function getReward(address account) external;
function notifyRewardAmount(uint256 reward) external;
function updateEntry(address account) external;
}
// 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;
}
// Computes `a - b`, setting the value to 0 if b > a.
function floorsub(uint a, uint b) internal pure returns (uint) {
return b >= a ? 0 : a - b;
}
/* ---------- Utilities ---------- */
/*
* Absolute value of the input, returned as a signed number.
*/
function signedAbs(int x) internal pure returns (int) {
return x < 0 ? -x : x;
}
/*
* Absolute value of the input, returned as an unsigned number.
*/
function abs(int x) internal pure returns (uint) {
return uint(signedAbs(x));
}
}
pragma experimental ABIEncoderV2;
library VestingEntries {
struct VestingEntry {
uint64 endTime;
uint256 escrowAmount;
}
struct VestingEntryWithID {
uint64 endTime;
uint256 escrowAmount;
uint256 entryID;
}
}
interface IRewardEscrowV2 {
// Views
function balanceOf(address account) external view returns (uint);
function numVestingEntries(address account) external view returns (uint);
function totalEscrowedAccountBalance(address account) external view returns (uint);
function totalVestedAccountBalance(address account) external view returns (uint);
function getVestingQuantity(address account, uint256[] calldata entryIDs) external view returns (uint);
function getVestingSchedules(
address account,
uint256 index,
uint256 pageSize
) external view returns (VestingEntries.VestingEntryWithID[] memory);
function getAccountVestingEntryIDs(
address account,
uint256 index,
uint256 pageSize
) external view returns (uint256[] memory);
function getVestingEntryClaimable(address account, uint256 entryID) external view returns (uint);
function getVestingEntry(address account, uint256 entryID) external view returns (uint64, uint256);
// Mutative functions
function vest(uint256[] calldata entryIDs) external;
function createEscrowEntry(
address beneficiary,
uint256 deposit,
uint256 duration
) external;
function appendVestingEntry(
address account,
uint256 quantity,
uint256 duration
) external;
function migrateVestingSchedule(address _addressToMigrate) external;
function migrateAccountEscrowBalances(
address[] calldata accounts,
uint256[] calldata escrowBalances,
uint256[] calldata vestedBalances
) external;
// Account Merging
function startMergingWindow() external;
function mergeAccount(address accountToMerge, uint256[] calldata entryIDs) external;
function nominateAccountToMerge(address account) external;
function accountMergingIsOpen() external view returns (bool);
// L2 Migration
function importVestingEntries(
address account,
uint256 escrowedAmount,
VestingEntries.VestingEntry[] calldata vestingEntries
) external;
// Return amount of SNX transfered to SynthetixBridgeToOptimism deposit contract
function burnForMigration(address account, uint256[] calldata entryIDs)
external
returns (uint256 escrowedAccountBalance, VestingEntries.VestingEntry[] memory vestingEntries);
}
// https://docs.synthetix.io/contracts/source/interfaces/isynthetixdebtshare
interface ISynthetixDebtShare {
// Views
function currentPeriodId() external view returns (uint128);
function allowance(address account, address spender) external view returns (uint);
function balanceOf(address account) external view returns (uint);
function balanceOfOnPeriod(address account, uint periodId) external view returns (uint);
function totalSupply() external view returns (uint);
function sharePercent(address account) external view returns (uint);
function sharePercentOnPeriod(address account, uint periodId) external view returns (uint);
// Mutative functions
function takeSnapshot(uint128 id) external;
function mintShare(address account, uint256 amount) external;
function burnShare(address account, uint256 amount) external;
function approve(address, uint256) external pure returns (bool);
function transfer(address to, uint256 amount) external pure returns (bool);
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
function addAuthorizedBroker(address target) external;
function removeAuthorizedBroker(address target) external;
function addAuthorizedToSnapshot(address target) external;
function removeAuthorizedToSnapshot(address target) external;
}
// Inheritance
// Libraries
// Internal references
/// @title Liquidator Rewards (SIP-148)
/// @notice This contract holds SNX from liquidated positions.
/// @dev SNX stakers may claim their rewards based on their share of the debt pool.
contract LiquidatorRewards is ILiquidatorRewards, Owned, MixinSystemSettings, ReentrancyGuard {
using SafeMath for uint256;
using SafeDecimalMath for uint256;
using SafeERC20 for IERC20;
struct AccountRewardsEntry {
uint128 claimable;
uint128 entryAccumulatedRewards;
}
/* ========== STATE VARIABLES ========== */
uint256 public accumulatedRewardsPerShare;
mapping(address => AccountRewardsEntry) public entries;
mapping(address => bool) public initiated;
bytes32 public constant CONTRACT_NAME = "LiquidatorRewards";
/* ========== ADDRESS RESOLVER CONFIGURATION ========== */
bytes32 private constant CONTRACT_SYNTHETIXDEBTSHARE = "SynthetixDebtShare";
bytes32 private constant CONTRACT_ISSUER = "Issuer";
bytes32 private constant CONTRACT_REWARDESCROW_V2 = "RewardEscrowV2";
bytes32 private constant CONTRACT_SYNTHETIX = "Synthetix";
/* ========== CONSTRUCTOR ========== */
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[](4);
newAddresses[0] = CONTRACT_SYNTHETIXDEBTSHARE;
newAddresses[1] = CONTRACT_ISSUER;
newAddresses[2] = CONTRACT_REWARDESCROW_V2;
newAddresses[3] = CONTRACT_SYNTHETIX;
return combineArrays(existingAddresses, newAddresses);
}
function synthetixDebtShare() internal view returns (ISynthetixDebtShare) {
return ISynthetixDebtShare(requireAndGetAddress(CONTRACT_SYNTHETIXDEBTSHARE));
}
function issuer() internal view returns (IIssuer) {
return IIssuer(requireAndGetAddress(CONTRACT_ISSUER));
}
function rewardEscrowV2() internal view returns (IRewardEscrowV2) {
return IRewardEscrowV2(requireAndGetAddress(CONTRACT_REWARDESCROW_V2));
}
function synthetix() internal view returns (IERC20) {
return IERC20(requireAndGetAddress(CONTRACT_SYNTHETIX));
}
function earned(address account) public view returns (uint256) {
AccountRewardsEntry memory entry = entries[account];
return
synthetixDebtShare()
.balanceOf(account)
.multiplyDecimal(accumulatedRewardsPerShare.sub(entry.entryAccumulatedRewards))
.add(entry.claimable);
}
/* ========== MUTATIVE FUNCTIONS ========== */
function getReward(address account) external nonReentrant {
updateEntry(account);
uint256 reward = entries[account].claimable;
if (reward > 0) {
entries[account].claimable = 0;
synthetix().approve(address(rewardEscrowV2()), reward);
rewardEscrowV2().createEscrowEntry(account, reward, getLiquidationEscrowDuration());
emit RewardPaid(account, reward);
}
}
// called every time a user's number of debt shares changes, or they claim rewards
// has no useful purpose if called outside of these cases
function updateEntry(address account) public {
// when user enters for the first time
if (!initiated[account]) {
entries[account].entryAccumulatedRewards = uint128(accumulatedRewardsPerShare);
initiated[account] = true;
} else {
entries[account] = AccountRewardsEntry(uint128(earned(account)), uint128(accumulatedRewardsPerShare));
}
}
/* ========== RESTRICTED FUNCTIONS ========== */
/// @notice This is called only after an account is liquidated and the SNX rewards are sent to this contract.
function notifyRewardAmount(uint256 reward) external onlySynthetix {
uint sharesSupply = synthetixDebtShare().totalSupply();
if (sharesSupply > 0) {
accumulatedRewardsPerShare = accumulatedRewardsPerShare.add(reward.divideDecimal(sharesSupply));
}
}
/* ========== MODIFIERS ========== */
modifier onlySynthetix {
bool isSynthetix = msg.sender == address(synthetix());
require(isSynthetix, "Synthetix only");
_;
}
/* ========== EVENTS ========== */
event RewardPaid(address indexed user, uint256 reward);
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_resolver","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"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"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"reward","type":"uint256"}],"name":"RewardPaid","type":"event"},{"constant":true,"inputs":[],"name":"CONTRACT_NAME","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":[],"name":"accumulatedRewardsPerShare","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"earned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"entries","outputs":[{"internalType":"uint128","name":"claimable","type":"uint128"},{"internalType":"uint128","name":"entryAccumulatedRewards","type":"uint128"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getReward","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"initiated","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":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":false,"inputs":[{"internalType":"uint256","name":"reward","type":"uint256"}],"name":"notifyRewardAmount","outputs":[],"payable":false,"stateMutability":"nonpayable","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":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"},{"constant":false,"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"updateEntry","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000de910777c787903f78c89e7a0bf7f4c435cbb1fe0000000000000000000000004e3b31eb0e5cb73641ee1e65e7dcefe520ba3ef2
-----Decoded View---------------
Arg [0] : _owner (address): 0xDe910777C787903F78C89e7a0bf7F4C435cBB1Fe
Arg [1] : _resolver (address): 0x4E3b31eB0E5CB73641EE1E65E7dCEFe520bA3ef2
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000de910777c787903f78c89e7a0bf7f4c435cbb1fe
Arg [1] : 0000000000000000000000004e3b31eb0e5cb73641ee1e65e7dcefe520ba3ef2
Libraries Used
SafeDecimalMath : 0x84d626b2bb4d0f064067e4bf80fce7055d8f3e7bSystemSettingsLib : 0x307bdce0a68c612a17bae8d929f36402d7c94cfaSignedSafeDecimalMath : 0x728a2b79cad691531cc1146ef802617ff50c7095
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Multichain Portfolio | 31 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
|---|---|---|---|---|---|
| ETH | 100.00% | $0.991007 | 166,037.6503 | $164,544.47 |
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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.