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Calculate descendant information for mempool RPC output on-the-fly

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This is in preparation for removing the cached descendant state from the
mempool.
This commit is contained in:
Suhas Daftuar
2023-10-03 11:57:16 -04:00
parent bdcefb8a8b
commit c0bd04d18f
3 changed files with 20 additions and 3 deletions
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15
src/txmempool.cpp
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@@ -1217,6 +1217,21 @@ std::tuple<size_t, size_t, CAmount> CTxMemPool::CalculateAncestorData(const CTxM
return {ancestor_count, ancestor_size, ancestor_fees};
}
std::tuple<size_t, size_t, CAmount> CTxMemPool::CalculateDescendantData(const CTxMemPoolEntry& entry) const
{
auto descendants = m_txgraph->GetDescendants(entry, TxGraph::Level::MAIN);
size_t descendant_count = descendants.size();
size_t descendant_size = 0;
CAmount descendant_fees = 0;
for (auto tx: descendants) {
const CTxMemPoolEntry &desc = static_cast<const CTxMemPoolEntry&>(*tx);
descendant_size += desc.GetTxSize();
descendant_fees += desc.GetModifiedFee();
}
return {descendant_count, descendant_size, descendant_fees};
}
void CTxMemPool::GetTransactionAncestry(const Txid& txid, size_t& ancestors, size_t& descendants, size_t* const ancestorsize, CAmount* const ancestorfees) const {
LOCK(cs);
auto it = mapTx.find(txid);