Struct ckb_fee_estimator::Estimator

pub struct Estimator { /* fields omitted */ }

Fee Estimator Estimator track new block and tx_pool to collect data we track every new tx enter txpool and record the tip height and fee_rate, when tx is packed into a new block or dropped by txpool, we get a sample about how long a tx with X fee_rate can get confirmed or get dropped.

In inner, we group samples by predefined fee_rate buckets. To estimator fee_rate for a confirm target(how many blocks that a tx can get committed), we travel through fee_rate buckets, try to find a fee_rate X to let a tx get committed with high probilities within confirm target blocks.

Implementations

impl Estimator

pub fn new() -> Self

pub fn process_block(&mut self, height: u64, txs: impl Iterator<Item = Byte32>)

process new block record confirm blocks for txs which we tracked before.

pub fn track_tx(&mut self, tx_hash: Byte32, fee_rate: FeeRate, height: u64)

track a tx that entered txpool

pub fn drop_tx(&mut self, tx_hash: &Byte32) -> bool

tx removed from txpool

pub fn estimate(&self, expect_confirm_blocks: usize) -> FeeRate

estimate a fee rate for confirm target

Trait Implementations

impl Clone for Estimator

fn clone(&self) -> Estimator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Estimator

fn default() -> Self

Returns the "default value" for a type.