StableOracle.sol

View Source: contracts/oracles/StableOracle.sol

↗ Extends: IOracle, Ownable

StableOracle

Contract Members

Constants & Variables

contract IOracle public oracle;
uint256 public lastPrice;
uint256 public evictPercentage;
bool public manualOverride;
uint256 public manualPrice;

Events

event ChangeOracle(address  _oldOracle, address  _newOracle);
event ChangeEvictPercentage(uint256  _oldEvictPercentage, uint256  _newEvictPercentage);
event SetManualPrice(uint256  _oldPrice, uint256  _newPrice);
event SetManualOverride(bool  _override);

Functions

• (address _oracle, uint256 _evictPercentage)

• changeOracle(address _oracle)

• changeEvictPercentage(uint256 _evictPercentage)

• getCurrencyAddress()

• getCurrencySymbol()

• getCurrencyDenominated()

• getPrice()

• _change(uint256 _newPrice, uint256 _oldPrice)

• setManualPrice(uint256 _price)

• setManualOverride(bool _override)

Creates a new stable oracle based on existing oracle

function (address _oracle, uint256 _evictPercentage) public nonpayable

Arguments

Name	Type	Description
_oracle	address	address of underlying oracle
_evictPercentage	uint256

changeOracle

Updates medianizer address

function changeOracle(address _oracle) public nonpayable onlyOwner

Arguments

Name	Type	Description
_oracle	address	Address of underlying oracle

changeEvictPercentage

Updates eviction percentage

function changeEvictPercentage(uint256 _evictPercentage) public nonpayable onlyOwner

Arguments

Name	Type	Description
_evictPercentage	uint256	Percentage multiplied by 10**16

getCurrencyAddress

⤾ overrides IOracle.getCurrencyAddress

Returns address of oracle currency (0x0 for ETH)

function getCurrencyAddress() external view
returns(address)

Arguments

Name	Type	Description

getCurrencySymbol

⤾ overrides IOracle.getCurrencySymbol

Returns symbol of oracle currency (0x0 for ETH)

function getCurrencySymbol() external view
returns(bytes32)

Arguments

Name	Type	Description

getCurrencyDenominated

⤾ overrides IOracle.getCurrencyDenominated

Returns denomination of price

function getCurrencyDenominated() external view
returns(bytes32)

Arguments

Name	Type	Description

getPrice

⤾ overrides IOracle.getPrice

Returns price - should throw if not valid

function getPrice() external nonpayable
returns(uint256)

Arguments

Name	Type	Description

_change

function _change(uint256 _newPrice, uint256 _oldPrice) internal pure
returns(uint256)

Arguments

Name	Type	Description
_newPrice	uint256
_oldPrice	uint256

setManualPrice

Set a manual price. NA - this will only be used if manualOverride == true

function setManualPrice(uint256 _price) public nonpayable onlyOwner

Arguments

Name	Type	Description
_price	uint256	Price to set

setManualOverride

Determine whether manual price is used or not

function setManualOverride(bool _override) public nonpayable onlyOwner

Arguments

Name	Type	Description
_override	bool	Whether to use the manual override price or not