Method CalculateMemPoolAncestors

src/txmempool.cpp:130–164

}

CTxMemPool::setEntries CTxMemPool::CalculateMemPoolAncestors(const CTxMemPoolEntry &entry) const
{
    auto ancestors = m_txgraph->GetAncestors(entry, TxGraph::Level::MAIN);
    setEntries ret;
    if (ancestors.size() > 0) {
        for (auto ancestor : ancestors) {
            if (ancestor != &entry) {
                ret.insert(mapTx.iterator_to(static_cast<const CTxMemPoolEntry&>(*ancestor)));
            }
        }
        return ret;
    }

    // If we didn't get anything back, the transaction is not in the graph.
    // Find each parent and call GetAncestors on each.
    setEntries staged_parents;
    const CTransaction &tx = entry.GetTx();

    // Get parents of this transaction that are in the mempool
    for (unsigned int i = 0; i < tx.vin.size(); i++) {
        std::optional<txiter> piter = GetIter(tx.vin[i].prevout.hash);
        if (piter) {
            staged_parents.insert(*piter);
        }
    }

    for (const auto& parent : staged_parents) {
        auto parent_ancestors = m_txgraph->GetAncestors(*parent, TxGraph::Level::MAIN);
        for (auto ancestor : parent_ancestors) {
            ret.insert(mapTx.iterator_to(static_cast<const CTxMemPoolEntry&>(*ancestor)));
        }
    }

    return ret;
}

static CTxMemPool::Options&& Flatten(CTxMemPool::Options&& opts, bilingual_str& error)
{