Struct CachedReads

pub struct CachedReads { /* private fields */ }

A container type that caches reads from an underlying DatabaseRef.

This is intended to be used in conjunction with revm::db::State during payload building which repeatedly accesses the same data.

Example

use reth_revm::cached::CachedReads;
use revm::db::{DatabaseRef, State};

fn build_payload<DB: DatabaseRef>(db: DB) {
    let mut cached_reads = CachedReads::default();
    let db = cached_reads.as_db_mut(db);
    // this is `Database` and can be used to build a payload, it never commits to `CachedReads` or the underlying database, but all reads from the underlying database are cached in `CachedReads`.
    // Subsequent payload build attempts can use cached reads and avoid hitting the underlying database.
    let state = State::builder().with_database(db).build();
}

Implementations

impl CachedReads

pub fn as_db<DB>(&mut self, db: DB) -> CachedReadsDBRef<'_, DB>

Gets a DatabaseRef that will cache reads from the given database.

pub fn as_db_mut<DB>(&mut self, db: DB) -> CachedReadsDbMut<'_, DB>

Gets a mutable Database that will cache reads from the underlying database.

pub fn insert_account( &mut self, address: Address, info: AccountInfo, storage: HashMap<U256, U256>, )

Inserts an account info into the cache.

pub fn extend(&mut self, other: Self)

Extends current cache with entries from another CachedReads instance.

Note: It is expected that both instances are based on the exact same state.

Trait Implementations

impl Clone for CachedReads

fn clone(&self) -> CachedReads

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CachedReads

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

Formats the value using the given formatter.

impl Default for CachedReads

fn default() -> CachedReads

Returns the “default value” for a type.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 120 bytes