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LiquidationCache

hypercall::liquidator::cache

Struct LiquidationCache 

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pub struct LiquidationCache {
    states: Arc<RwLock<HashMap<WalletAddress, AccountLiquidationStatus>>>,
}
Expand description

In-memory cache for liquidation states.

Provides fast synchronous reads for the hot path (order validation) and async writes for state transitions.

Uses std::sync::RwLock to allow blocking reads in synchronous contexts.

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§states: Arc<RwLock<HashMap<WalletAddress, AccountLiquidationStatus>>>

Cached liquidation states by wallet.

Implementations§

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impl LiquidationCache

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pub fn new() -> Self

Create a new empty cache.

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pub fn get_state_sync(&self, wallet: &WalletAddress) -> LiquidationState

Get liquidation state synchronously (blocking).

Blocks until the lock is available, then returns the state. Returns Healthy if wallet not found in cache. This is the hot path for order validation.

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pub fn is_pre_liquidation_sync(&self, wallet: &WalletAddress) -> bool

Check if wallet is in pre-liquidation (synchronous).

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pub fn should_block_risk_increasing_sync(&self, wallet: &WalletAddress) -> bool

Check if risk-increasing orders should be blocked (synchronous).

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pub async fn get_status( &self, wallet: &WalletAddress, ) -> Option<AccountLiquidationStatus>

Get full liquidation status.

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pub async fn get_state(&self, wallet: &WalletAddress) -> LiquidationState

Get liquidation state.

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pub async fn get_all_wallets(&self) -> Vec<WalletAddress>

Get all wallets currently being tracked.

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pub async fn get_wallets_in_state(&self, state_type: &str) -> Vec<WalletAddress>

Get all wallets in a specific state.

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pub async fn get_state_counts(&self) -> HashMap<String, usize>

Get count of wallets in each state.

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pub async fn set_status(&self, status: AccountLiquidationStatus)

Update or insert liquidation status.

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pub async fn update_health( &self, wallet: &WalletAddress, equity: Decimal, mm_required: Decimal, timestamp: u64, )

Update health metrics for a wallet.

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pub async fn enter_pre_liquidation( &self, wallet: &WalletAddress, metadata: PartialLiquidationMetadata, timestamp: u64, ) -> Option<LiquidationState>

Transition wallet to pre-liquidation state.

Returns the previous state for logging/events.

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pub async fn recover_to_healthy( &self, wallet: &WalletAddress, timestamp: u64, ) -> Option<LiquidationState>

Transition wallet back to healthy state.

Returns the previous state for logging/events.

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pub async fn enter_liquidation( &self, wallet: &WalletAddress, metadata: FullLiquidationMetadata, timestamp: u64, ) -> Option<LiquidationState>

Transition wallet to in-liquidation state.

Returns the previous state for logging/events.

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pub async fn complete_liquidation( &self, wallet: &WalletAddress, metadata: LiquidatedMetadata, timestamp: u64, ) -> Option<LiquidationState>

Transition wallet to liquidated state.

Returns the previous state for logging/events.

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pub async fn remove(&self, wallet: &WalletAddress)

Remove a wallet from tracking (e.g., after liquidation completed).

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pub async fn settle_and_complete_liquidation( &self, wallet: &WalletAddress, auction_id: &str, liquidator: &WalletAddress, settlement_value: Decimal, timestamp: u64, ) -> Option<LiquidationState>

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pub async fn init_if_absent( &self, wallet: WalletAddress, margin_mode: MarginMode, equity: Decimal, mm_required: Decimal, timestamp: u64, )

Initialize status for a wallet if not already present.

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pub async fn load_from_db(&self, handler: &DieselDb) -> Result<usize>

Load all liquidation states from the database into the cache.

This should be called during startup to restore state.

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pub(crate) fn record_to_status( record: LiquidationStateRecord, ) -> Result<AccountLiquidationStatus>

Convert a database record to an AccountLiquidationStatus.

Trait Implementations§

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impl Default for LiquidationCache

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fn default() -> Self

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