Struct MempoolEntry 

pub struct MempoolEntry {
    pub tx: Arc<Transaction>,
    pub vsize: u32,
    pub fee: u64,
    pub fee_rate: u64,
    pub ancestor_size: u64,
    pub ancestor_fee: u64,
    pub descendant_size: u64,
    pub descendant_fee: u64,
    pub time: u64,
    pub height: u32,
}

Transaction plus policy accounting used by mempool ordering and limits.

Fields

tx: Arc<Transaction>

Transaction payload shared with downstream consumers.

vsize: u32

Virtual transaction size in vbytes.

fee: u64

Transaction fee in satoshis.

fee_rate: u64

Fee rate in sat/vB multiplied by 1000.

ancestor_size: u64

Total virtual size of this entry and all unconfirmed ancestors.

ancestor_fee: u64

Total fee of this entry and all unconfirmed ancestors.

descendant_size: u64

Total virtual size of this entry and all unconfirmed descendants.

descendant_fee: u64

Total fee of this entry and all unconfirmed descendants.

time: u64

Mempool acceptance time in monotonically increasing seconds.

height: u32

Chain height at acceptance.

Implementations

impl MempoolEntry

pub fn new( tx: Arc<Transaction>, vsize: u32, fee: u64, time: u64, height: u32, ) -> Self

Builds a mempool entry with self-only ancestor and descendant accounting.

pub const fn ancestor_fee_rate(&self) -> u64

Ancestor package fee rate in sat/vB multiplied by 1000.

pub const fn descendant_fee_rate(&self) -> u64

Descendant package fee rate in sat/vB multiplied by 1000.

pub fn is_replaceable(&self) -> bool

Returns whether this transaction signals BIP-125 replaceability (any input has sequence < 0xFFFF_FFFE).

Bitcoin Core’s bip125-replaceable mempool entry field is derived from this predicate. Lifted from the inline check in Mempool::iter_replaceable_txids.

Trait Implementations

impl Clone for MempoolEntry

fn clone(&self) -> MempoolEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MempoolEntry

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

Formats the value using the given formatter.