Struct ckb_store::StoreWriteBatch

pub struct StoreWriteBatch { /* private fields */ }

Wrapper of RocksDBWriteBatch, provides atomic batch of write operations.

Implementations

impl StoreWriteBatch

pub fn put(&mut self, col: Col, key: &[u8], value: &[u8]) -> Result<(), Error>

Write the bytes into the given column with associated key.

pub fn delete(&mut self, col: Col, key: &[u8]) -> Result<(), Error>

Delete the data associated with the given key and given column.

pub fn size_in_bytes(&self) -> usize

Return WriteBatch serialized size (in bytes).

pub fn len(&self) -> usize

Return the count of write batch.

pub fn is_empty(&self) -> bool

Returns true if the write batch contains no operations.

pub fn clear(&mut self) -> Result<(), Error>

Clear all updates buffered in this batch.

pub fn insert_cells( &mut self, cells: impl Iterator<Item = (OutPoint, CellEntry, Option<CellDataEntry>)> ) -> Result<(), Error>

Put cells into this write batch

pub fn delete_cells( &mut self, out_points: impl Iterator<Item = OutPoint> ) -> Result<(), Error>

Remove cells from this write batch

pub fn delete_block_body( &mut self, number: BlockNumber, hash: &Byte32, txs_len: u32 ) -> Result<(), Error>

Removes the block body from database with corresponding hash, number and txs number

pub fn delete_block( &mut self, number: BlockNumber, hash: &Byte32, txs_len: u32 ) -> Result<(), Error>

Removes the entire block from database with corresponding hash, number and txs number