Struct sp_core::offchain::storage::OffchainDb

pub struct OffchainDb<Storage> { /* private fields */ }

Offchain DB that implements DbExternalities for OffchainStorage.

Implementations

impl<Storage> OffchainDb<Storage>

pub fn new(persistent: Storage) -> Self

Create new instance of Offchain DB.

Trait Implementations

impl<Storage: Clone> Clone for OffchainDb<Storage>

fn clone(&self) -> OffchainDb<Storage>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Storage: OffchainStorage> DbExternalities for OffchainDb<Storage>

fn local_storage_set(&mut self, kind: StorageKind, key: &[u8], value: &[u8])

Sets a value in the local storage.

fn local_storage_clear(&mut self, kind: StorageKind, key: &[u8])

Removes a value in the local storage.

fn local_storage_compare_and_set( &mut self, kind: StorageKind, key: &[u8], old_value: Option<&[u8]>, new_value: &[u8] ) -> bool

Sets a value in the local storage if it matches current value.

fn local_storage_get( &mut self, kind: StorageKind, key: &[u8] ) -> Option<Vec<u8>>

Gets a value from the local storage.

impl<Storage: Debug> Debug for OffchainDb<Storage>

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

Formats the value using the given formatter.