diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptonote_core/tx_pool.cpp | 67 | ||||
| -rw-r--r-- | src/cryptonote_core/tx_pool.h | 6 |
2 files changed, 56 insertions, 17 deletions
diff --git a/src/cryptonote_core/tx_pool.cpp b/src/cryptonote_core/tx_pool.cpp index a68da0e62..1c99ed132 100644 --- a/src/cryptonote_core/tx_pool.cpp +++ b/src/cryptonote_core/tx_pool.cpp @@ -917,26 +917,61 @@ namespace cryptonote { CRITICAL_REGION_LOCAL(m_transactions_lock); CRITICAL_REGION_LOCAL1(m_blockchain); - const relay_category category = include_sensitive ? relay_category::all : relay_category::broadcasted; - backlog.reserve(m_blockchain.get_txpool_tx_count(include_sensitive)); - txpool_tx_meta_t tmp_meta; - m_blockchain.for_all_txpool_txes([this, &backlog, &tmp_meta](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata_ref *bd){ - transaction tx; - if (!(meta.pruned ? parse_and_validate_tx_base_from_blob(*bd, tx) : parse_and_validate_tx_from_blob(*bd, tx))) + + std::vector<tx_block_template_backlog_entry> tmp; + uint64_t total_weight = 0; + + // First get everything from the mempool, filter it later + m_blockchain.for_all_txpool_txes([&tmp, &total_weight](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata_ref*){ + tmp.emplace_back(tx_block_template_backlog_entry{txid, meta.weight, meta.fee}); + total_weight += meta.weight; + return true; + }, false, include_sensitive ? relay_category::all : relay_category::broadcasted); + + // Limit backlog to 112.5% of current median weight. This is enough to mine a full block with the optimal block reward + const uint64_t median_weight = m_blockchain.get_current_cumulative_block_weight_median(); + const uint64_t max_backlog_weight = median_weight + (median_weight / 8); + + // If the total weight is too high, choose the best paying transactions + if (total_weight > max_backlog_weight) + std::sort(tmp.begin(), tmp.end(), [](const auto& a, const auto& b){ return a.fee * b.weight > b.fee * a.weight; }); + + backlog.clear(); + uint64_t w = 0; + + std::unordered_set<crypto::key_image> k_images; + + for (const tx_block_template_backlog_entry& e : tmp) + { + try { - MERROR("Failed to parse tx from txpool"); - // continue - return true; - } - tx.set_hash(txid); + txpool_tx_meta_t meta; + if (!m_blockchain.get_txpool_tx_meta(e.id, meta)) + continue; - tmp_meta = meta; + cryptonote::blobdata txblob; + if (!m_blockchain.get_txpool_tx_blob(e.id, txblob, relay_category::all)) + continue; - if (is_transaction_ready_to_go(tmp_meta, txid, *bd, tx)) - backlog.push_back({txid, meta.weight, meta.fee}); + cryptonote::transaction tx; + if (is_transaction_ready_to_go(meta, e.id, txblob, tx)) + { + if (have_key_images(k_images, tx)) + continue; + append_key_images(k_images, tx); - return true; - }, true, category); + backlog.push_back(e); + w += e.weight; + if (w > max_backlog_weight) + break; + } + } + catch (const std::exception &e) + { + MERROR("Failed to check transaction readiness: " << e.what()); + // continue, not fatal + } + } } //------------------------------------------------------------------ void tx_memory_pool::get_transaction_stats(struct txpool_stats& stats, bool include_sensitive) const diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h index 62bef6c06..df58688ff 100644 --- a/src/cryptonote_core/tx_pool.h +++ b/src/cryptonote_core/tx_pool.h @@ -266,7 +266,11 @@ namespace cryptonote void get_transaction_backlog(std::vector<tx_backlog_entry>& backlog, bool include_sensitive = false) const; /** - * @brief get (hash, weight, fee) for all transactions in the pool - the minimum required information to create a block template + * @brief get (hash, weight, fee) for transactions in the pool - the minimum required information to create a block template + * + * Not all transactions in the pool will be returned for performance reasons + * If there are too many transactions in the pool, only the highest-paying transactions + * will be returned - but enough for the miner to create a full block * * @param backlog return-by-reference that data * @param include_sensitive return stempool, anonymity-pool, and unrelayed txes |