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Merge pull request #10835

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330062a Optimized handle_notify_new_transactions's duplicate tx check - Check sha256 digests instead of full blobs (much less memory used) - Replace `find->insert` sequence with a single `insert` - 2x fewer hashset accesses - Preallocate the required size for the hashset (no full-table rehashes) (SChernykh)

ACKs: selsta, j-berman
This commit is contained in:
tobtoht
2026-06-30 09:59:55 +00:00
parent 6f09e39866 330062a004
commit d6a90937c8
1 changed files with 9 additions and 3 deletions
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src/cryptonote_protocol/cryptonote_protocol_handler.inl
+9 -3
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@@ -915,17 +915,23 @@ namespace cryptonote
return 1;
}
std::unordered_set<blobdata> seen;
std::unordered_set<crypto::hash> seen;
seen.reserve(arg.txs.size());
for (const auto &blob: arg.txs)
{
MLOGIF_P2P_MESSAGE(cryptonote::transaction tx; crypto::hash hash; bool ret = cryptonote::parse_and_validate_tx_from_blob(blob, tx, hash);, ret, "Including transaction " << hash);
if (seen.find(blob) != seen.end())
crypto::hash digest{};
if (!blob.empty())
tools::sha256sum(reinterpret_cast<const uint8_t*>(blob.data()), blob.size(), digest);
if (!seen.insert(digest).second)
{
LOG_PRINT_CCONTEXT_L1("Duplicate transaction in notification, dropping connection");
drop_connection(context, false, false);
return 1;
}
seen.insert(blob);
}
/* If the txes were received over i2p/tor, the default is to "forward"