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ConcurrentStateInfo

trevm::db::sync

Struct ConcurrentStateInfo 

Source 
pub struct ConcurrentStateInfo {
    pub cache: ConcurrentCacheState,
    pub transition_state: Option<TransitionState>,
    pub bundle_state: BundleState,
    pub use_preloaded_bundle: bool,
    pub block_hashes: RwLock<BTreeMap<u64, B256>>,
}
Available on crate feature concurrent-db only.
Expand description

Non-DB contents of ConcurrentState

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§cache: ConcurrentCacheState

Cached state contains both changed from evm execution and cached/loaded account/storages from database. This allows us to have only one layer of cache where we can fetch data. Additionally we can introduce some preloading of data from database.

§transition_state: Option<TransitionState>

Block state, it aggregates transactions transitions into one state.

Build reverts and state that gets applied to the state.

§bundle_state: BundleState

After block is finishes we merge those changes inside bundle. Bundle is used to update database and create changesets. Bundle state can be set on initialization if we want to use preloaded bundle.

§use_preloaded_bundle: bool

Addition layer that is going to be used to fetched values before fetching values from database.

Bundle is the main output of the state execution and this allows setting previous bundle and using its values for execution.

§block_hashes: RwLock<BTreeMap<u64, B256>>

If EVM asks for block hash we will first check if they are found here. and then ask the database.

This map can be used to give different values for block hashes if in case the fork block is different or some blocks are not saved inside database.

Trait Implementations§

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impl Debug for ConcurrentStateInfo

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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 Default for ConcurrentStateInfo

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fn default() -> ConcurrentStateInfo

Returns the “default value” for a type. Read more

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