diff options
| -rw-r--r-- | src/cryptonote_core/tx_pool.cpp | 33 | ||||
| -rw-r--r-- | src/cryptonote_core/tx_pool.h | 8 |
2 files changed, 35 insertions, 6 deletions
diff --git a/src/cryptonote_core/tx_pool.cpp b/src/cryptonote_core/tx_pool.cpp index 164530b3e..b6f1a5d40 100644 --- a/src/cryptonote_core/tx_pool.cpp +++ b/src/cryptonote_core/tx_pool.cpp @@ -220,7 +220,7 @@ namespace cryptonote crypto::hash max_used_block_id = null_hash; uint64_t max_used_block_height = 0; cryptonote::txpool_tx_meta_t meta; - bool ch_inp_res = m_blockchain.check_tx_inputs(tx, max_used_block_height, max_used_block_id, tvc, kept_by_block); + bool ch_inp_res = check_tx_inputs([&tx]()->cryptonote::transaction&{ return tx; }, id, max_used_block_height, max_used_block_id, tvc, kept_by_block); if(!ch_inp_res) { // if the transaction was valid before (kept_by_block), then it @@ -883,11 +883,15 @@ namespace cryptonote //--------------------------------------------------------------------------------- bool tx_memory_pool::on_blockchain_inc(uint64_t new_block_height, const crypto::hash& top_block_id) { + CRITICAL_REGION_LOCAL(m_transactions_lock); + m_input_cache.clear(); return true; } //--------------------------------------------------------------------------------- bool tx_memory_pool::on_blockchain_dec(uint64_t new_block_height, const crypto::hash& top_block_id) { + CRITICAL_REGION_LOCAL(m_transactions_lock); + m_input_cache.clear(); return true; } //--------------------------------------------------------------------------------- @@ -927,7 +931,26 @@ namespace cryptonote m_transactions_lock.unlock(); } //--------------------------------------------------------------------------------- - bool tx_memory_pool::is_transaction_ready_to_go(txpool_tx_meta_t& txd, const cryptonote::blobdata &txblob, transaction &tx) const + bool tx_memory_pool::check_tx_inputs(const std::function<cryptonote::transaction&(void)> &get_tx, const crypto::hash &txid, uint64_t &max_used_block_height, crypto::hash &max_used_block_id, tx_verification_context &tvc, bool kept_by_block) const + { + if (!kept_by_block) + { + const std::unordered_map<crypto::hash, std::tuple<bool, tx_verification_context, uint64_t, crypto::hash>>::const_iterator i = m_input_cache.find(txid); + if (i != m_input_cache.end()) + { + max_used_block_height = std::get<2>(i->second); + max_used_block_id = std::get<3>(i->second); + tvc = std::get<1>(i->second); + return std::get<0>(i->second); + } + } + bool ret = m_blockchain.check_tx_inputs(get_tx(), max_used_block_height, max_used_block_id, tvc, kept_by_block); + if (!kept_by_block) + m_input_cache.insert(std::make_pair(txid, std::make_tuple(ret, tvc, max_used_block_height, max_used_block_id))); + return ret; + } + //--------------------------------------------------------------------------------- + bool tx_memory_pool::is_transaction_ready_to_go(txpool_tx_meta_t& txd, const crypto::hash &txid, const cryptonote::blobdata &txblob, transaction &tx) const { struct transction_parser { @@ -956,7 +979,7 @@ namespace cryptonote return false;//we already sure that this tx is broken for this height tx_verification_context tvc; - if(!m_blockchain.check_tx_inputs(lazy_tx(), txd.max_used_block_height, txd.max_used_block_id, tvc)) + if(!check_tx_inputs([&lazy_tx]()->cryptonote::transaction&{ return lazy_tx(); }, txid, txd.max_used_block_height, txd.max_used_block_id, tvc)) { txd.last_failed_height = m_blockchain.get_current_blockchain_height()-1; txd.last_failed_id = m_blockchain.get_block_id_by_height(txd.last_failed_height); @@ -973,7 +996,7 @@ namespace cryptonote return false; //check ring signature again, it is possible (with very small chance) that this transaction become again valid tx_verification_context tvc; - if(!m_blockchain.check_tx_inputs(lazy_tx(), txd.max_used_block_height, txd.max_used_block_id, tvc)) + if(!check_tx_inputs([&lazy_tx]()->cryptonote::transaction&{ return lazy_tx(); }, txid, txd.max_used_block_height, txd.max_used_block_id, tvc)) { txd.last_failed_height = m_blockchain.get_current_blockchain_height()-1; txd.last_failed_id = m_blockchain.get_block_id_by_height(txd.last_failed_height); @@ -1166,7 +1189,7 @@ namespace cryptonote bool ready = false; try { - ready = is_transaction_ready_to_go(meta, txblob, tx); + ready = is_transaction_ready_to_go(meta, sorted_it->second, txblob, tx); } catch (const std::exception &e) { diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h index 4ce2f085d..b87a59e05 100644 --- a/src/cryptonote_core/tx_pool.h +++ b/src/cryptonote_core/tx_pool.h @@ -499,12 +499,13 @@ namespace cryptonote * @brief check if a transaction is a valid candidate for inclusion in a block * * @param txd the transaction to check (and info about it) + * @param txid the txid of the transaction to check * @param txblob the transaction blob to check * @param tx the parsed transaction, if successful * * @return true if the transaction is good to go, otherwise false */ - bool is_transaction_ready_to_go(txpool_tx_meta_t& txd, const cryptonote::blobdata &txblob, transaction &tx) const; + bool is_transaction_ready_to_go(txpool_tx_meta_t& txd, const crypto::hash &txid, const cryptonote::blobdata &txblob, transaction &tx) const; /** * @brief mark all transactions double spending the one passed @@ -557,6 +558,9 @@ private: */ sorted_tx_container::iterator find_tx_in_sorted_container(const crypto::hash& id) const; + //! cache/call Blockchain::check_tx_inputs results + bool check_tx_inputs(const std::function<cryptonote::transaction&(void)> &get_tx, const crypto::hash &txid, uint64_t &max_used_block_height, crypto::hash &max_used_block_id, tx_verification_context &tvc, bool kept_by_block = false) const; + //! transactions which are unlikely to be included in blocks /*! These transactions are kept in RAM in case they *are* included * in a block eventually, but this container is not saved to disk. @@ -567,6 +571,8 @@ private: size_t m_txpool_max_size; size_t m_txpool_size; + + mutable std::unordered_map<crypto::hash, std::tuple<bool, tx_verification_context, uint64_t, crypto::hash>> m_input_cache; }; } |