Struct ckb_store::data_loader_wrapper::DataLoaderWrapper

pub struct DataLoaderWrapper<'a, T>(_);

TODO(doc): @quake

Implementations

impl<'a, T: ChainStore> DataLoaderWrapper<'a, T>

pub fn new(source: &'a T) -> Self

TODO(doc): @quake

Trait Implementations

impl<'a, T: ChainStore> CellDataProvider for DataLoaderWrapper<'a, T>

fn get_cell_data(&self, out_point: &OutPoint) -> Option<Bytes>

Fetch cell_data from storage

fn get_cell_data_hash(&self, out_point: &OutPoint) -> Option<Byte32>

Fetch cell_data_hash from storage, please note that loading a large amount of cell data and calculating hash may be a performance bottleneck, so here is a separate fn designed to facilitate caching.

fn load_cell_data(&self, cell: &CellMeta) -> Option<Bytes>

Load cell_data from memory, fallback to storage access

fn load_cell_data_hash(&self, cell: &CellMeta) -> Option<Byte32>

Load cell_data_hash from memory, fallback to storage access

impl<'a, T: ChainStore> EpochProvider for DataLoaderWrapper<'a, T>

fn get_epoch_ext(&self, header: &HeaderView) -> Option<EpochExt>

Get corresponding EpochExt by block header

fn get_block_epoch(&self, header: &HeaderView) -> Option<BlockEpoch>

Get corresponding epoch progress information by block header

impl<'a, T: ChainStore> HeaderProvider for DataLoaderWrapper<'a, T>

fn get_header(&self, block_hash: &Byte32) -> Option<HeaderView>

Get the header of the given block hash

fn timestamp_and_parent(&self, block_hash: &Byte32) -> (u64, u64, Byte32)

Get timestamp and block_number of the corresponding block_hash, and hash of parent block

fn block_median_time(&self, block_hash: &Byte32, median_block_count: usize) -> u64

Get past block median time, including the timestamp of the given one