brk_mempool 0.3.0-beta.8

Bitcoin mempool monitor with fee estimation
Documentation 
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use brk_types::{CpfpEntry, FeeRate, Sats, Txid, VSize, Weight};
use smallvec::SmallVec;

use super::TxIndex;

/// Frozen per-tx view used by the snapshot. Holds the chunk rate
/// (Core's `fees.chunk` / `chunkweight` when available, else proxy)
/// plus resolved parent/child adjacency in `TxIndex` space, so
/// CPFP queries are a pure walk over `Snapshot.txs`.
#[derive(Clone, Debug)]
pub struct SnapTx {
    pub txid: Txid,
    pub fee: Sats,
    pub vsize: VSize,
    pub weight: Weight,
    /// Serialized tx size in bytes (witness + non-witness).
    pub size: u64,
    pub chunk_rate: FeeRate,
    /// Direct parents in the live pool (resolved against entry slots
    /// at build time; cross-pool / confirmed parents are dropped).
    pub parents: SmallVec<[TxIndex; 2]>,
    pub children: SmallVec<[TxIndex; 4]>,
}

impl From<&SnapTx> for CpfpEntry {
    fn from(t: &SnapTx) -> Self {
        Self {
            txid: t.txid,
            weight: t.weight,
            fee: t.fee,
        }
    }
}