diff options
| -rw-r--r-- | src/net_processing.cpp | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index 72c8e65c6b..7c2d7335a0 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -1741,16 +1741,27 @@ void static ProcessGetData(CNode& pfrom, const CChainParams& chainparams, CConnm connman.PushMessage(&pfrom, msgMaker.Make(nSendFlags, NetMsgType::TX, *tx)); mempool.RemoveUnbroadcastTx(tx->GetHash()); // As we're going to send tx, make sure its unconfirmed parents are made requestable. - for (const auto& txin : tx->vin) { - auto txinfo = mempool.info(txin.prevout.hash); - if (txinfo.tx && txinfo.m_time > now - UNCONDITIONAL_RELAY_DELAY) { - // Relaying a transaction with a recent but unconfirmed parent. - if (WITH_LOCK(pfrom.m_tx_relay->cs_tx_inventory, return !pfrom.m_tx_relay->filterInventoryKnown.contains(txin.prevout.hash))) { - LOCK(cs_main); - State(pfrom.GetId())->m_recently_announced_invs.insert(txin.prevout.hash); + std::vector<uint256> parent_ids_to_add; + { + LOCK(mempool.cs); + auto txiter = mempool.GetIter(tx->GetHash()); + if (txiter) { + const CTxMemPool::setEntries& parents = mempool.GetMemPoolParents(*txiter); + parent_ids_to_add.reserve(parents.size()); + for (CTxMemPool::txiter parent_iter : parents) { + if (parent_iter->GetTime() > now - UNCONDITIONAL_RELAY_DELAY) { + parent_ids_to_add.push_back(parent_iter->GetTx().GetHash()); + } } } } + for (const uint256& parent_txid : parent_ids_to_add) { + // Relaying a transaction with a recent but unconfirmed parent. + if (WITH_LOCK(pfrom.m_tx_relay->cs_tx_inventory, return !pfrom.m_tx_relay->filterInventoryKnown.contains(parent_txid))) { + LOCK(cs_main); + State(pfrom.GetId())->m_recently_announced_invs.insert(parent_txid); + } + } } else { vNotFound.push_back(inv); } @@ -2999,8 +3010,19 @@ void ProcessMessage( else if (state.GetResult() == TxValidationResult::TX_MISSING_INPUTS) { bool fRejectedParents = false; // It may be the case that the orphans parents have all been rejected + + // Deduplicate parent txids, so that we don't have to loop over + // the same parent txid more than once down below. + std::vector<uint256> unique_parents; + unique_parents.reserve(tx.vin.size()); for (const CTxIn& txin : tx.vin) { - if (recentRejects->contains(txin.prevout.hash)) { + // We start with all parents, and then remove duplicates below. + unique_parents.push_back(txin.prevout.hash); + } + std::sort(unique_parents.begin(), unique_parents.end()); + unique_parents.erase(std::unique(unique_parents.begin(), unique_parents.end()), unique_parents.end()); + for (const uint256& parent_txid : unique_parents) { + if (recentRejects->contains(parent_txid)) { fRejectedParents = true; break; } @@ -3009,14 +3031,14 @@ void ProcessMessage( uint32_t nFetchFlags = GetFetchFlags(pfrom); const auto current_time = GetTime<std::chrono::microseconds>(); - for (const CTxIn& txin : tx.vin) { + for (const uint256& parent_txid : unique_parents) { // Here, we only have the txid (and not wtxid) of the // inputs, so we only request in txid mode, even for // wtxidrelay peers. // Eventually we should replace this with an improved // protocol for getting all unconfirmed parents. - CInv _inv(MSG_TX | nFetchFlags, txin.prevout.hash); - pfrom.AddKnownTx(txin.prevout.hash); + CInv _inv(MSG_TX | nFetchFlags, parent_txid); + pfrom.AddKnownTx(parent_txid); if (!AlreadyHave(_inv, mempool)) RequestTx(State(pfrom.GetId()), ToGenTxid(_inv), current_time); } AddOrphanTx(ptx, pfrom.GetId()); |