Struct casper_execution_engine::storage::global_state::lmdb::LmdbGlobalState

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pub struct LmdbGlobalState { /* private fields */ }

Expand description

Global state implemented against LMDB as a backing data store.

Implementations

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impl LmdbGlobalState

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pub fn empty(
environment: Arc<LmdbEnvironment>,
trie_store: Arc<LmdbTrieStore>
) -> Result<Self, Error>

Creates an empty state from an existing environment and trie_store.

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pub fn new(
 environment: Arc<LmdbEnvironment>,
 trie_store: Arc<LmdbTrieStore>,
 empty_root_hash: Digest
) -> Self

Creates a state from an existing environment, store, and root_hash. Intended to be used for testing.

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pub fn create_scratch(&self) -> ScratchGlobalState

Creates an in-memory cache for changes written.

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pub fn put_stored_values(
 &self,
 correlation_id: CorrelationId,
 prestate_hash: Digest,
 stored_values: HashMap<Key, StoredValue>
) -> Result<Digest, Error>

Write stored values to LMDB.

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pub fn environment(&self) -> &LmdbEnvironment

Get a reference to the lmdb global state’s environment.

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pub fn trie_store(&self) -> &LmdbTrieStore

Get a reference to the lmdb global state’s trie store.

Trait Implementations

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impl Clone for LmdbGlobalState

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fn clone(&self) -> LmdbGlobalState

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl CommitProvider for LmdbGlobalState

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fn commit(
 &self,
 correlation_id: CorrelationId,
 prestate_hash: Digest,
 effects: AdditiveMap<Key, Transform>
) -> Result<Digest, Self::Error>

Applies changes and returns a new post state hash. block_hash is used for computing a deterministic and unique keys. Read more

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impl StateProvider for LmdbGlobalState

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fn missing_trie_keys(
 &self,
 correlation_id: CorrelationId,
 trie_keys: Vec<Digest>
) -> Result<Vec<Digest>, Self::Error>

Finds all of the keys of missing descendant Trie<K,V> values.

type Error = Error

Associated error type for StateProvider.

type Reader = LmdbGlobalStateView

Associated reader type for StateProvider.

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fn checkout(
&self,
state_hash: Digest
) -> Result<Option<Self::Reader>, Self::Error>

Checkouts to the post state of a specific block.

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fn empty_root(&self) -> Digest

Returns an empty root hash.

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fn get_trie(
 &self,
 _correlation_id: CorrelationId,
 trie_key: &Digest
) -> Result<Option<Trie<Key, StoredValue>>, Self::Error>

Reads a Trie from the state if it is present

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fn put_trie(
 &self,
 correlation_id: CorrelationId,
 trie: &Trie<Key, StoredValue>
) -> Result<Digest, Self::Error>

Insert a trie node into the trie

Auto Trait Implementations

impl RefUnwindSafe for LmdbGlobalState

impl Send for LmdbGlobalState

impl Sync for LmdbGlobalState

impl Unpin for LmdbGlobalState

impl UnwindSafe for LmdbGlobalState

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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Causes self to use its UpperHex implementation when Debug-formatted. Read more

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const: unstable · source

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Struct casper_execution_engine::storage::global_state::lmdb::LmdbGlobalState

Implementations

impl LmdbGlobalState

pub fn empty( environment: Arc<LmdbEnvironment>, trie_store: Arc<LmdbTrieStore>) -> Result<Self, Error>

pub fn new( environment: Arc<LmdbEnvironment>, trie_store: Arc<LmdbTrieStore>, empty_root_hash: Digest) -> Self

pub fn create_scratch(&self) -> ScratchGlobalState

pub fn put_stored_values( &self, correlation_id: CorrelationId, prestate_hash: Digest, stored_values: HashMap<Key, StoredValue>) -> Result<Digest, Error>

pub fn environment(&self) -> &LmdbEnvironment

pub fn trie_store(&self) -> &LmdbTrieStore

Trait Implementations

impl Clone for LmdbGlobalState

fn clone(&self) -> LmdbGlobalState

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

impl CommitProvider for LmdbGlobalState

fn commit( &self, correlation_id: CorrelationId, prestate_hash: Digest, effects: AdditiveMap<Key, Transform>) -> Result<Digest, Self::Error>

impl StateProvider for LmdbGlobalState

fn missing_trie_keys( &self, correlation_id: CorrelationId, trie_keys: Vec<Digest>) -> Result<Vec<Digest>, Self::Error>

type Error = Error

type Reader = LmdbGlobalStateView

fn checkout( &self, state_hash: Digest) -> Result<Option<Self::Reader>, Self::Error>

fn empty_root(&self) -> Digest

fn get_trie( &self, _correlation_id: CorrelationId, trie_key: &Digest) -> Result<Option<Trie<Key, StoredValue>>, Self::Error>

fn put_trie( &self, correlation_id: CorrelationId, trie: &Trie<Key, StoredValue>) -> Result<Digest, Self::Error>

Auto Trait Implementations

impl RefUnwindSafe for LmdbGlobalState

impl Send for LmdbGlobalState

impl Sync for LmdbGlobalState

impl Unpin for LmdbGlobalState

impl UnwindSafe for LmdbGlobalState

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

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fn fmt_display(self) -> FmtDisplay<Self> where Self: Display,

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pub fn empty(
environment: Arc<LmdbEnvironment>,
trie_store: Arc<LmdbTrieStore>
) -> Result<Self, Error>

pub fn new(
environment: Arc<LmdbEnvironment>,
trie_store: Arc<LmdbTrieStore>,
empty_root_hash: Digest
) -> Self

pub fn put_stored_values(
&self,
correlation_id: CorrelationId,
prestate_hash: Digest,
stored_values: HashMap<Key, StoredValue>
) -> Result<Digest, Error>

fn commit(
&self,
correlation_id: CorrelationId,
prestate_hash: Digest,
effects: AdditiveMap<Key, Transform>
) -> Result<Digest, Self::Error>

fn missing_trie_keys(
&self,
correlation_id: CorrelationId,
trie_keys: Vec<Digest>
) -> Result<Vec<Digest>, Self::Error>

fn checkout(
&self,
state_hash: Digest
) -> Result<Option<Self::Reader>, Self::Error>

fn get_trie(
&self,
_correlation_id: CorrelationId,
trie_key: &Digest
) -> Result<Option<Trie<Key, StoredValue>>, Self::Error>

fn put_trie(
&self,
correlation_id: CorrelationId,
trie: &Trie<Key, StoredValue>
) -> Result<Digest, Self::Error>

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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,