mirror of
https://github.com/0glabs/0g-chain.git
synced 2024-12-27 08:45:19 +00:00
45 lines
1.6 KiB
Markdown
45 lines
1.6 KiB
Markdown
|
# State
|
||
|
|
|
||
|
|
## Parameters and genesis state
|
||
|
|
|
||
|
|
`Paramaters` determine which markets are tracked by the pricefeed and which oracles are authorized to post prices for a given market. There is only one active parameter set at any given time. Updates to parameters can be made via on-chain parameter update proposals.
|
||
|
|
|
||
|
|
```go
|
||
|
|
// Params params for pricefeed. Can be altered via governance
|
||
|
|
type Params struct {
|
||
|
|
Markets Markets `json:"markets" yaml:"markets"` // Array containing the markets supported by the pricefeed
|
||
|
|
}
|
||
|
|
|
||
|
|
// Market an asset in the pricefeed
|
||
|
|
type Market struct {
|
||
|
|
MarketID string `json:"market_id" yaml:"market_id"`
|
||
|
|
BaseAsset string `json:"base_asset" yaml:"base_asset"`
|
||
|
|
QuoteAsset string `json:"quote_asset" yaml:"quote_asset"`
|
||
|
|
Oracles []sdk.AccAddress `json:"oracles" yaml:"oracles"`
|
||
|
|
Active bool `json:"active" yaml:"active"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type Markets []Market
|
||
|
|
```
|
||
|
|
|
||
|
|
`GenesisState` defines the state that must be persisted when the blockchain stops/stars in order for the normal function of the pricefeed to resume.
|
||
|
|
|
||
|
|
```go
|
||
|
|
// GenesisState - pricefeed state that must be provided at genesis
|
||
|
|
type GenesisState struct {
|
||
|
|
Params Params `json:"params" yaml:"params"`
|
||
|
|
PostedPrices []PostedPrice `json:"posted_prices" yaml:"posted_prices"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// PostedPrice price for market posted by a specific oracle
|
||
|
|
type PostedPrice struct {
|
||
|
|
MarketID string `json:"market_id" yaml:"market_id"`
|
||
|
|
OracleAddress sdk.AccAddress `json:"oracle_address" yaml:"oracle_address"`
|
||
|
|
Price sdk.Dec `json:"price" yaml:"price"`
|
||
|
|
Expiry time.Time `json:"expiry" yaml:"expiry"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type PostedPrices []PostedPrice
|
||
|
|
```
|
||
|
|
|