Struct OracleMap

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pub struct OracleMap {
    pub oraclemap: Arc<DashMap<(Pubkey, u8), Oracle, RandomState>>,
    pub oracle_by_market: ReadOnlyView<MarketId, (Pubkey, OracleSource), RandomState>,
    /* private fields */
}
Expand description

Dynamic map of Drift market oracle data

Caller can subscribe to some subset of markets for Ws backed updates Alternatively, the caller may drive the map by calling sync periodically

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§oraclemap: Arc<DashMap<(Pubkey, u8), Oracle, RandomState>>

Oracle data keyed by pubkey and source

§oracle_by_market: ReadOnlyView<MarketId, (Pubkey, OracleSource), RandomState>

Oracle (pubkey, source) by MarketId (immutable)

Implementations§

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impl OracleMap

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pub const SUBSCRIPTION_ID: &'static str = "oraclemap"

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pub fn new( pubsub_client: Arc<PubsubClient>, all_oracles: &[(MarketId, Pubkey, OracleSource)], commitment: CommitmentConfig, ) -> Self

Create a new OracleMap

  • rpc_client - Shared RPC client instance
  • pubsub_client - Shared Pubsub client instance
  • all_oracles - Exhaustive list of all Drift oracle pubkeys and source by market
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pub async fn subscribe(&self, markets: &[MarketId]) -> SdkResult<()>

Subscribe to oracle updates for given markets

Can be called multiple times to subscribe to additional markets

Panics

If the market oracle pubkey is not loaded

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pub fn unsubscribe(&self, markets: &[MarketId]) -> SdkResult<()>

Unsubscribe from oracle updates for the given markets

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pub fn unsubscribe_all(&self) -> SdkResult<()>

Unsubscribe from all oracle updates

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pub async fn sync(&self, markets: &[MarketId], rpc: &RpcClient) -> SdkResult<()>

Fetches account data for each market oracle set by markets

This may be invoked manually to resync oracle data for some set of markets

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pub fn len(&self) -> usize

Number of oracles known to the OracleMap

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pub fn is_subscribed(&self, market: &MarketId) -> bool

Returns true if the oraclemap has a subscription for market

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pub fn current_perp_oracle(&self, market_index: u16) -> Option<Pubkey>

Get the address of a perp market oracle

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pub fn current_spot_oracle(&self, market_index: u16) -> Option<Pubkey>

Get the address of a spot market oracle

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pub fn get_by_market(&self, market: &MarketId) -> Option<Oracle>

Return Oracle data by market, if known

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pub fn values(&self) -> Vec<Oracle>

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pub fn get_latest_slot(&self) -> u64

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pub fn map(&self) -> Arc<MapOf<(Pubkey, u8), Oracle>>

Return a reference to the internal map data structure

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