Struct ForkedDatabase

pub struct ForkedDatabase {
    backend: SharedBackend,
    cache_db: CacheDB<SharedBackend>,
    db: BlockchainDb,
    state_snapshots: Arc<Mutex<RawMutex, StateSnapshots<ForkDbStateSnapshot>>>,
}

a revm::Database that’s forked off another client

The backend is used to retrieve (missing) data, which is then fetched from the remote endpoint. The inner in-memory database holds this storage and will be used for write operations. This database uses the backend for read and the db for write operations. But note the backend will also write (missing) data to the db in the background

Fields

backend: SharedBackend

cache_db: CacheDB<SharedBackend>

db: BlockchainDb

state_snapshots: Arc<Mutex<RawMutex, StateSnapshots<ForkDbStateSnapshot>>>

Implementations

impl ForkedDatabase

pub fn new(backend: SharedBackend, db: BlockchainDb) -> ForkedDatabase

Creates a new instance of this DB

pub fn database(&self) -> &CacheDB<SharedBackend>

pub fn database_mut(&mut self) -> &mut CacheDB<SharedBackend>

pub fn state_snapshots( &self, ) -> &Arc<Mutex<RawMutex, StateSnapshots<ForkDbStateSnapshot>>>

pub fn reset( &mut self, _url: Option<String>, block_number: impl Into<BlockId>, ) -> Result<(), String>

Reset the fork to a fresh forked state, and optionally update the fork config

pub fn flush_cache(&self)

Flushes the cache to disk if configured

pub fn inner(&self) -> &BlockchainDb

Returns the database that holds the remote state

pub fn create_state_snapshot(&self) -> ForkDbStateSnapshot

pub fn insert_state_snapshot(&self) -> Uint<256, 4>

pub fn revert_state_snapshot( &mut self, id: Uint<256, 4>, action: RevertStateSnapshotAction, ) -> bool

Removes the snapshot from the tracked snapshot and sets it as the current state

Trait Implementations

impl Clone for ForkedDatabase

fn clone(&self) -> ForkedDatabase

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Database for ForkedDatabase

type Error = DatabaseError

The database error type.

fn basic( &mut self, address: Address, ) -> Result<Option<AccountInfo>, <ForkedDatabase as Database>::Error>

Get basic account information.

fn code_by_hash( &mut self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <ForkedDatabase as Database>::Error>

Get account code by its hash.

fn storage( &mut self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <ForkedDatabase as Database>::Error>

Get storage value of address at index.

fn block_hash( &mut self, number: u64, ) -> Result<FixedBytes<32>, <ForkedDatabase as Database>::Error>

Get block hash by block number.

impl DatabaseCommit for ForkedDatabase

fn commit(&mut self, changes: HashMap<Address, Account, RandomState>)

Commit changes to the database.

impl DatabaseRef for ForkedDatabase

type Error = DatabaseError

The database error type.

fn basic_ref( &self, address: Address, ) -> Result<Option<AccountInfo>, <ForkedDatabase as DatabaseRef>::Error>

Get basic account information.

fn code_by_hash_ref( &self, code_hash: FixedBytes<32>, ) -> Result<Bytecode, <ForkedDatabase as DatabaseRef>::Error>

Get account code by its hash.

fn storage_ref( &self, address: Address, index: Uint<256, 4>, ) -> Result<Uint<256, 4>, <ForkedDatabase as DatabaseRef>::Error>

Get storage value of address at index.

fn block_hash_ref( &self, number: u64, ) -> Result<FixedBytes<32>, <ForkedDatabase as DatabaseRef>::Error>

Get block hash by block number.

impl Debug for ForkedDatabase

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

Formats the value using the given formatter.

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: 224 bytes