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CachedStateProvider

reth_execution_cache

Struct CachedStateProvider 

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pub struct CachedStateProvider<S> { /* private fields */ }
Expand description

A wrapper of a state provider and a shared cache.

CacheFillMode controls whether misses populate the shared cache. This is used by background prewarmers and speculative execution workers that intentionally seed the cache for other readers. Canonical execution usually leaves this disabled because the EVM database State already caches reads during the block, and the shared cache is updated after the block from the final [BundleState]. See also ExecutionCache::insert_state.

Execution-cache and txpool-snapshot hit/miss metrics are recorded separately when CachedStateMetrics is provided. Slow-block CacheStats are controlled separately by Self::new_with_mode.

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impl<S> CachedStateProvider<S>

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pub const fn new( state_provider: S, caches: ExecutionCache, metrics: Option<CachedStateMetrics>, ) -> Self

Creates a new CachedStateProvider from an ExecutionCache, state provider, and optional CachedStateMetrics.

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pub const fn new_prewarm(state_provider: S, caches: ExecutionCache) -> Self

Creates a cache-filling CachedStateProvider.

Doesn’t accept metrics because prewarming path does not need to report hit/misses.

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pub const fn new_with_mode( state_provider: S, caches: ExecutionCache, fill_mode: CacheFillMode, metrics: Option<CachedStateMetrics>, cache_stats: Option<Arc<CacheStats>>, ) -> Self

Creates a CachedStateProvider with explicit cache fill behavior and optional block-local cache stats.

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pub fn with_txpool_snapshot( self, snapshot: Option<TxPoolPrewarmCacheSnapshot>, ) -> Self

Adds an immutable txpool-prewarm snapshot as the first cache lookup tier.

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impl<S: Debug> Debug for CachedStateProvider<S>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<S> Drop for CachedStateProvider<S>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics #130494)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more
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impl<S: EvmStateProvider> EvmStateProvider for CachedStateProvider<S>

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fn basic_account(&self, address: &Address) -> ProviderResult<Option<Account>>

Returns the account, or None if it does not exist.
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fn storage( &self, account: Address, storage_key: StorageKey, ) -> ProviderResult<Option<StorageValue>>

Returns the storage value of the given account and slot.
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fn bytecode_by_hash(&self, code_hash: &B256) -> ProviderResult<Option<Bytecode>>

Returns bytecode by its hash.
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fn block_hash(&self, number: BlockNumber) -> ProviderResult<Option<B256>>

Returns the block hash, or None if the block does not exist.

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impl<T> Any for T
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<TxEnv, T> FromRecoveredTx<&T> for TxEnv
where TxEnv: FromRecoveredTx<T>,

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fn from_recovered_tx(tx: &&T, sender: Address) -> TxEnv

Builds a [TxEnv] from a transaction and a sender address.
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impl<TxEnv, T> FromTxWithEncoded<&T> for TxEnv
where TxEnv: FromTxWithEncoded<T>,

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fn from_encoded_tx(tx: &&T, sender: Address, encoded: Bytes) -> TxEnv

Builds a [TxEnv] from a transaction, its sender, and encoded transaction bytes.
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