Struct sc_fast_sync_backend::BlockImportOperation

pub struct BlockImportOperation<Block: BlockT> { /* private fields */ }

In-memory operation.

Trait Implementations

impl<Block: BlockT> BlockImportOperation<Block> for BlockImportOperation<Block>

type State = ChainState<Block>

Associated state backend type.

fn state(&self) -> Result<Option<&Self::State>>

Returns pending state.

fn set_block_data( &mut self, header: <Block as BlockT>::Header, body: Option<Vec<<Block as BlockT>::Extrinsic>>, _indexed_body: Option<Vec<Vec<u8>>>, justifications: Option<Justifications>, state: NewBlockState, ) -> Result<()>

Append block data to the transaction.

fn update_db_storage( &mut self, update: BackendTransaction<HashingFor<Block>>, ) -> Result<()>

Inject storage data into the database.

fn set_genesis_state( &mut self, storage: Storage, commit: bool, state_version: StateVersion, ) -> Result<Block::Hash>

Set genesis state. If commit is false the state is saved in memory, but is not written to the database.

fn reset_storage( &mut self, storage: Storage, state_version: StateVersion, ) -> Result<Block::Hash>

Inject storage data into the database replacing any existing data.

fn insert_aux<I>(&mut self, ops: I) -> Result<()>

where I: IntoIterator<Item = (Vec<u8>, Option<Vec<u8>>)>,

Insert auxiliary keys.

fn update_storage( &mut self, _update: StorageCollection, _child_update: ChildStorageCollection, ) -> Result<()>

Set storage changes.

fn mark_finalized( &mut self, hash: Block::Hash, justification: Option<Justification>, ) -> Result<()>

Mark a block as finalized, if multiple blocks are finalized in the same operation then they must be marked in ascending order.

fn mark_head(&mut self, hash: Block::Hash) -> Result<()>

Mark a block as new head. If both block import and set head are specified, set head overrides block import’s best block rule.

fn update_transaction_index( &mut self, _index: Vec<IndexOperation>, ) -> Result<()>

Add a transaction index operation.

fn set_create_gap(&mut self, _create_gap: bool)

Configure whether to create a block gap if newly imported block is missing parent

fn update_offchain_storage( &mut self, _offchain_update: Vec<((Vec<u8>, Vec<u8>), OffchainOverlayedChange)>, ) -> Result<(), Error>

Write offchain storage changes to the database.