ICollateralManager

Functions​

getVault​

  function getVault(
  ) external returns (address)

Get the address of vault

Return Values:​

Name	Type	Description
vault	address	address of vault

getClearingHouseConfig​

  function getClearingHouseConfig(
  ) external returns (address)

Get the address of clearing house config

Return Values:​

Name	Type	Description
clearingHouseConfig	address	address of clearing house config

getCollateralConfig​

  function getCollateralConfig(
    address token
  ) external returns (struct Collateral.Config)

Get collateral config by token address

Parameters:​

Name	Type	Description
token	address	address of token

Return Values:​

Name	Type	Description
collateral	struct Collateral.Config	config

getPriceFeedDecimals​

  function getPriceFeedDecimals(
    address token
  ) external returns (uint8)

Get price feed decimals of the collateral token

Parameters:​

Name	Type	Description
token	address	address of token

Return Values:​

Name	Type	Description
decimals	uint8	of the price feed

getPrice​

  function getPrice(
    address token
  ) external returns (uint256)

Get the price of the collateral token

Parameters:​

Name	Type	Description
token	address	address of token

Return Values:​

Name	Type	Description
price	uint256	of the certain period

getMaxCollateralTokensPerAccount​

  function getMaxCollateralTokensPerAccount(
  ) external returns (uint8)

Get the max number of collateral tokens per account

Return Values:​

Name	Type	Description
max	uint8	number of collateral tokens per account

getMmRatioBuffer​

  function getMmRatioBuffer(
  ) external returns (uint24)

Get the minimum margin ratio - mmRatio before the account's collateral is liquidatable

6 decimals, same decimals as _mmRatio

getDebtNonSettlementTokenValueRatio​

  function getDebtNonSettlementTokenValueRatio(
  ) external returns (uint24)

Get the maximum debt / nonSettlementTokenValue before the account's collaterals are liquidated

6 decimals

getLiquidationRatio​

  function getLiquidationRatio(
  ) external returns (uint24)

Get the maximum ratio of debt can be repaid in one transaction

6 decimals. For example, liquidationRatio = 50% means the liquidator can repay as much as half of the trader’s debt in one liquidation

Return Values:​

Name	Type	Description
liquidation	uint24	ratio

getCLInsuranceFundFeeRatio​

  function getCLInsuranceFundFeeRatio(
  ) external returns (uint24)

Get the insurance fund fee ratio when liquidating a trader's collateral

6 decimals. For example, clInsuranceFundFeeRatio = 5% means the liquidator will pay 5% of transferred settlement token to insurance fund

Return Values:​

Name	Type	Description
insurance	uint24	fund fee ratio

getDebtThreshold​

  function getDebtThreshold(
  ) external returns (uint256)

Get the default maximum debt (denominated in settlement token) allowed before an account’s collateral is liquidatable.

6 decimals

getDebtThresholdByTrader​

  function getDebtThresholdByTrader(
  ) external returns (uint256)

Get the maximum whitelisted debt (denominated in settlement token) allowed before an account’s collateral is liquidatable.

6 decimals

getTotalWhitelistedDebtThreshold​

  function getTotalWhitelistedDebtThreshold(
  ) external returns (uint256)

Get the total whitelisted debt (denominated in settlement token) allowed

6 decimals

getCollateralValueDust​

  function getCollateralValueDust(
  ) external returns (uint256)

Get the threshold of the minium repaid. If a trader’s collateral value (denominated in settlement token) falls below the threshold, the liquidator can convert it with 100% liquidationRatio so there is no dust left

6 decimals

Return Values:​

Name	Type	Description
Dust	uint256	collateral value

isCollateral​

  function isCollateral(
    address token
  ) external returns (bool)

Check if the given token is one of collateral tokens

Parameters:​

Name	Type	Description
token	address	address of token

Return Values:​

Name	Type	Description
true	bool	if the token is one of collateral tokens

requireValidCollateralMmRatio​

  function requireValidCollateralMmRatio(
    uint24 mmRatioBuffer
  ) external returns (uint24)

Require and get the the valid collateral maintenance margin ratio by mmRatioBuffer

Parameters:​

Name	Type	Description
mmRatioBuffer	uint24	safe margin ratio buffer; 6 decimals, same decimals as _mmRatio

Return Values:​

Name	Type	Description
collateralMmRatio	uint24	the collateral maintenance margin ratio

Events​

CollateralAdded​

  event CollateralAdded(
    address token,
    address priceFeed,
    uint24 collateralRatio,
    uint24 discountRatio,
    uint256 depositCap
  )

Emitted when owner add collateral

Parameters:​

Name	Type	Description
token	address	address of token
priceFeed	address	address of price feed
collateralRatio	uint24	collateral ratio
discountRatio	uint24	discount ratio for the collateral liquidation
depositCap	uint256	max amount of collateral that can be deposited

ClearingHouseConfigChanged​

  event ClearingHouseConfigChanged(
    address clearingHouseConfig
  )

Emitted when owner update the address of clearing house config

Parameters:​

Name	Type	Description
clearingHouseConfig	address	address of clearing house config

VaultChanged​

  event VaultChanged(
    address vault
  )

Emitted when owner update the address of vault

Parameters:​

Name	Type	Description
vault	address	address of vault

PriceFeedChanged​

  event PriceFeedChanged(
    address token,
    address priceFeed
  )

Emitted when owner update the price feed address of a collateral token

Parameters:​

Name	Type	Description
token	address	address of token
priceFeed	address	address of price feed

CollateralRatioChanged​

  event CollateralRatioChanged(
    address token,
    uint24 collateralRatio
  )

Emitted when owner update the collateral ratio of a collateral token

Parameters:​

Name	Type	Description
token	address	address of token
collateralRatio	uint24	collateral ratio

DiscountRatioChanged​

  event DiscountRatioChanged(
    address token,
    uint24 discountRatio
  )

Emitted when owner change the discount ratio

Parameters:​

Name	Type	Description
token	address	address of token
discountRatio	uint24	discount ratio for the collateral liquidation

DepositCapChanged​

  event DepositCapChanged(
    address token,
    uint256 depositCap
  )

Emitted when owner update the deposit cap of a collateral token

Parameters:​

Name	Type	Description
token	address	address of token
depositCap	uint256	max amount of the collateral that can be deposited

MaxCollateralTokensPerAccountChanged​

  event MaxCollateralTokensPerAccountChanged(
    uint8 maxCollateralTokensPerAccount
  )

Emitted when owner init or update the max collateral tokens that per account can have, this is can prevent high gas cost.

Parameters:​

Name	Type	Description
maxCollateralTokensPerAccount	uint8	max amount of collateral tokens that per account can have

MmRatioBufferChanged​

  event MmRatioBufferChanged(
    uint24 mmRatioBuffer
  )

Emitted when owner init or update the maintenance margin ratio buffer, the value provides a safe range between the mmRatio & the collateralMMRatio.

Parameters:​

Name	Type	Description
mmRatioBuffer	uint24	safe buffer number (bps)

DebtNonSettlementTokenValueRatioChanged​

  event DebtNonSettlementTokenValueRatioChanged(
    uint24 debtNonSettlementTokenValueRatio
  )

Emitted when owner init or update the debt non-settlement token value ratio, maximum debt / nonSettlementTokenValue before the account's is liquidatable

Parameters:​

Name	Type	Description
debtNonSettlementTokenValueRatio	uint24	debt non-settlement token value ratio, ≤ 1

LiquidationRatioChanged​

  event LiquidationRatioChanged(
    uint24 liquidationRatio
  )

Emitted when owner init or update the liquidation ratio, the value presents the max repaid ratio of the collateral liquidation.

Parameters:​

Name	Type	Description
liquidationRatio	uint24	liquidation ratio, ≤ 1

CLInsuranceFundFeeRatioChanged​

  event CLInsuranceFundFeeRatioChanged(
    uint24 clInsuranceFundFeeRatio
  )

Emitted when owner init or update the clearing house insurance fund fee ratio, charge fee for clearing house insurance fund.

Parameters:​

Name	Type	Description
clInsuranceFundFeeRatio	uint24	clearing house insurance fund fee ratio, ≤ 1

DebtThresholdChanged​

  event DebtThresholdChanged(
    uint256 debtThreshold
  )

Emitted when owner init or update the debt threshold, maximum debt allowed before an account’s collateral is liquidatable.

Parameters:​

Name	Type	Description
debtThreshold	uint256	debt threshold

WhitelistedDebtThresholdChanged​

  event WhitelistedDebtThresholdChanged(
    address whitelistedDebtThreshold
  )

Emitted when owner init or update the whitelisted debt threshold, maximum debt allowed before an account’s collateral is liquidatable.

Parameters:​

Name	Type	Description
whitelistedDebtThreshold	address	whitelisted debt threshold

CollateralValueDustChanged​

  event CollateralValueDustChanged(
    uint256 collateralValueDust
  )

Emitted when owner init or update the collateral value dust, if a trader’s debt value falls below this dust threshold, the liquidator will ignore the liquidationRatio.

Parameters:​

Name	Type	Description
collateralValueDust	uint256	collateral value dust