Merge pull request #1748
bed2d9f2Get rid of directory lock (Howard Chu)2e913676Handle map resizes from other processes (Howard Chu)bf1348b7Can't cache num_txs or num_outputs either (Howard Chu)dc53e9eeAdd a few read txns to streamline (Howard Chu)
This commit is contained in:
Riccardo Spagni
commit
675434ffab
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@ -377,7 +377,50 @@ void mdb_txn_safe::allow_new_txns()
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creation_gate.clear();
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}
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void lmdb_resized(MDB_env *env)
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{
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mdb_txn_safe::prevent_new_txns();
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MGINFO("LMDB map resize detected.");
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MDB_envinfo mei;
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mdb_env_info(env, &mei);
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uint64_t old = mei.me_mapsize;
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mdb_txn_safe::wait_no_active_txns();
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int result = mdb_env_set_mapsize(env, 0);
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if (result)
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throw0(DB_ERROR(lmdb_error("Failed to set new mapsize: ", result).c_str()));
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mdb_env_info(env, &mei);
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uint64_t new_mapsize = mei.me_mapsize;
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MGINFO("LMDB Mapsize increased." << " Old: " << old / (1024 * 1024) << "MiB" << ", New: " << new_mapsize / (1024 * 1024) << "MiB");
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mdb_txn_safe::allow_new_txns();
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}
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inline int lmdb_txn_begin(MDB_env *env, MDB_txn *parent, unsigned int flags, MDB_txn **txn)
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{
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int res = mdb_txn_begin(env, parent, flags, txn);
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if (res == MDB_MAP_RESIZED) {
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lmdb_resized(env);
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res = mdb_txn_begin(env, parent, flags, txn);
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}
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return res;
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}
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inline int lmdb_txn_renew(MDB_txn *txn)
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{
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int res = mdb_txn_renew(txn);
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if (res == MDB_MAP_RESIZED) {
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lmdb_resized(mdb_txn_env(txn));
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res = mdb_txn_renew(txn);
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}
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return res;
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}
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void BlockchainLMDB::do_resize(uint64_t increase_size)
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{
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@ -561,7 +604,7 @@ uint64_t BlockchainLMDB::get_estimated_batch_size(uint64_t batch_num_blocks) con
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{
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LOG_PRINT_L1("No existing blocks to check for average block size");
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}
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else if (m_cum_count)
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else if (m_cum_count >= num_prev_blocks)
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{
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avg_block_size = m_cum_size / m_cum_count;
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LOG_PRINT_L1("average block size across recent " << m_cum_count << " blocks: " << avg_block_size);
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@ -570,6 +613,9 @@ uint64_t BlockchainLMDB::get_estimated_batch_size(uint64_t batch_num_blocks) con
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}
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else
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{
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MDB_txn *rtxn;
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mdb_txn_cursors *rcurs;
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block_rtxn_start(&rtxn, &rcurs);
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for (uint64_t block_num = block_start; block_num <= block_stop; ++block_num)
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{
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uint32_t block_size = get_block_size(block_num);
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@ -578,6 +624,7 @@ uint64_t BlockchainLMDB::get_estimated_batch_size(uint64_t batch_num_blocks) con
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// some blocks were to be skipped for being outliers.
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++num_blocks_used;
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}
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block_rtxn_stop();
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avg_block_size = total_block_size / num_blocks_used;
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LOG_PRINT_L1("average block size across recent " << num_blocks_used << " blocks: " << avg_block_size);
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}
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@ -702,7 +749,7 @@ uint64_t BlockchainLMDB::add_transaction_data(const crypto::hash& blk_hash, cons
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uint64_t m_height = height();
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int result;
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uint64_t tx_id = m_num_txs;
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uint64_t tx_id = num_txs();
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CURSOR(txs)
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CURSOR(tx_indices)
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@ -735,7 +782,6 @@ uint64_t BlockchainLMDB::add_transaction_data(const crypto::hash& blk_hash, cons
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if (result)
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throw0(DB_ERROR(lmdb_error("Failed to add tx blob to db transaction: ", result).c_str()));
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m_num_txs++;
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return tx_id;
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}
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@ -783,8 +829,6 @@ void BlockchainLMDB::remove_transaction_data(const crypto::hash& tx_hash, const
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// Don't delete the tx_indices entry until the end, after we're done with val_tx_id
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if (mdb_cursor_del(m_cur_tx_indices, 0))
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throw1(DB_ERROR("Failed to add removal of tx index to db transaction"));
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m_num_txs--;
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}
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uint64_t BlockchainLMDB::add_output(const crypto::hash& tx_hash,
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@ -797,6 +841,7 @@ uint64_t BlockchainLMDB::add_output(const crypto::hash& tx_hash,
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check_open();
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mdb_txn_cursors *m_cursors = &m_wcursors;
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uint64_t m_height = height();
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uint64_t m_num_outputs = num_outputs();
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int result = 0;
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@ -849,7 +894,6 @@ uint64_t BlockchainLMDB::add_output(const crypto::hash& tx_hash,
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if ((result = mdb_cursor_put(m_cur_output_amounts, &val_amount, &data, MDB_APPENDDUP)))
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throw0(DB_ERROR(lmdb_error("Failed to add output pubkey to db transaction: ", result).c_str()));
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m_num_outputs++;
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return ok.amount_index;
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}
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@ -934,8 +978,6 @@ void BlockchainLMDB::remove_output(const uint64_t amount, const uint64_t& out_in
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result = mdb_cursor_del(m_cur_output_amounts, 0);
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if (result)
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throw0(DB_ERROR(lmdb_error(std::string("Error deleting amount for output index ").append(boost::lexical_cast<std::string>(out_index).append(": ")).c_str(), result).c_str()));
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m_num_outputs--;
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}
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void BlockchainLMDB::add_spent_key(const crypto::key_image& k_image)
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@ -1000,7 +1042,7 @@ tx_out BlockchainLMDB::output_from_blob(const blobdata& blob) const
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void BlockchainLMDB::check_open() const
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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// LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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if (!m_open)
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throw0(DB_ERROR("DB operation attempted on a not-open DB instance"));
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}
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@ -1155,16 +1197,6 @@ void BlockchainLMDB::open(const std::string& filename, const int mdb_flags)
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LOG_PRINT_L2("Setting m_height to: " << db_stats.ms_entries);
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uint64_t m_height = db_stats.ms_entries;
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// get and keep current number of txs
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if ((result = mdb_stat(txn, m_txs, &db_stats)))
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throw0(DB_ERROR(lmdb_error("Failed to query m_txs: ", result).c_str()));
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m_num_txs = db_stats.ms_entries;
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// get and keep current number of outputs
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if ((result = mdb_stat(txn, m_output_txs, &db_stats)))
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throw0(DB_ERROR(lmdb_error("Failed to query m_output_txs: ", result).c_str()));
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m_num_outputs = db_stats.ms_entries;
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bool compatible = true;
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MDB_val_copy<const char*> k("version");
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@ -1270,7 +1302,7 @@ void BlockchainLMDB::reset()
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check_open();
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mdb_txn_safe txn;
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if (auto result = mdb_txn_begin(m_env, NULL, 0, txn))
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if (auto result = lmdb_txn_begin(m_env, NULL, 0, txn))
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throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str()));
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if (auto result = mdb_drop(txn, m_blocks, 0))
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@ -1304,7 +1336,6 @@ void BlockchainLMDB::reset()
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throw0(DB_ERROR(lmdb_error("Failed to write version to database: ", result).c_str()));
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txn.commit();
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m_num_outputs = 0;
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m_cum_size = 0;
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m_cum_count = 0;
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}
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@ -1354,7 +1385,7 @@ void BlockchainLMDB::unlock()
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txn_ptr = m_write_txn; \
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else \
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{ \
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if (auto mdb_res = mdb_txn_begin(m_env, NULL, flags, auto_txn)) \
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if (auto mdb_res = lmdb_txn_begin(m_env, NULL, flags, auto_txn)) \
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throw0(DB_ERROR(lmdb_error(std::string("Failed to create a transaction for the db in ")+__FUNCTION__+": ", mdb_res).c_str())); \
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} \
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@ -1388,7 +1419,7 @@ void BlockchainLMDB::unlock()
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txn_ptr = m_write_txn; \
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else \
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{ \
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if (auto mdb_res = mdb_txn_begin(m_env, NULL, flags, auto_txn)) \
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if (auto mdb_res = lmdb_txn_begin(m_env, NULL, flags, auto_txn)) \
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throw0(DB_ERROR(lmdb_error(std::string("Failed to create a transaction for the db in ")+__FUNCTION__+": ", mdb_res).c_str())); \
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} \
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@ -1714,6 +1745,34 @@ uint64_t BlockchainLMDB::height() const
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return db_stats.ms_entries;
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}
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uint64_t BlockchainLMDB::num_txs() const
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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TXN_PREFIX_RDONLY();
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int result;
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// get current height
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MDB_stat db_stats;
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if ((result = mdb_stat(m_txn, m_txs, &db_stats)))
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throw0(DB_ERROR(lmdb_error("Failed to query m_txs: ", result).c_str()));
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return db_stats.ms_entries;
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}
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uint64_t BlockchainLMDB::num_outputs() const
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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check_open();
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TXN_PREFIX_RDONLY();
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int result;
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// get current height
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MDB_stat db_stats;
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if ((result = mdb_stat(m_txn, m_output_txs, &db_stats)))
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throw0(DB_ERROR(lmdb_error("Failed to query m_output_txs: ", result).c_str()));
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return db_stats.ms_entries;
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}
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bool BlockchainLMDB::tx_exists(const crypto::hash& h) const
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{
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LOG_PRINT_L3("BlockchainLMDB::" << __func__);
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@ -2279,7 +2338,7 @@ bool BlockchainLMDB::batch_start(uint64_t batch_num_blocks)
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m_write_batch_txn = new mdb_txn_safe();
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// NOTE: need to make sure it's destroyed properly when done
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if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, *m_write_batch_txn))
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if (auto mdb_res = lmdb_txn_begin(m_env, NULL, 0, *m_write_batch_txn))
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{
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delete m_write_batch_txn;
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m_write_batch_txn = nullptr;
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@ -2398,12 +2457,12 @@ bool BlockchainLMDB::block_rtxn_start(MDB_txn **mtxn, mdb_txn_cursors **mcur) co
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m_tinfo.reset(new mdb_threadinfo);
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memset(&m_tinfo->m_ti_rcursors, 0, sizeof(m_tinfo->m_ti_rcursors));
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memset(&m_tinfo->m_ti_rflags, 0, sizeof(m_tinfo->m_ti_rflags));
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if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn))
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if (auto mdb_res = lmdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn))
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throw0(DB_ERROR_TXN_START(lmdb_error("Failed to create a read transaction for the db: ", mdb_res).c_str()));
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ret = true;
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} else if (!m_tinfo->m_ti_rflags.m_rf_txn)
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{
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if (auto mdb_res = mdb_txn_renew(m_tinfo->m_ti_rtxn))
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if (auto mdb_res = lmdb_txn_renew(m_tinfo->m_ti_rtxn))
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throw0(DB_ERROR_TXN_START(lmdb_error("Failed to renew a read transaction for the db: ", mdb_res).c_str()));
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ret = true;
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}
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@ -2436,12 +2495,12 @@ void BlockchainLMDB::block_txn_start(bool readonly)
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m_tinfo.reset(new mdb_threadinfo);
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memset(&m_tinfo->m_ti_rcursors, 0, sizeof(m_tinfo->m_ti_rcursors));
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memset(&m_tinfo->m_ti_rflags, 0, sizeof(m_tinfo->m_ti_rflags));
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if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn))
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if (auto mdb_res = lmdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn))
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throw0(DB_ERROR_TXN_START(lmdb_error("Failed to create a read transaction for the db: ", mdb_res).c_str()));
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didit = true;
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} else if (!m_tinfo->m_ti_rflags.m_rf_txn)
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{
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if (auto mdb_res = mdb_txn_renew(m_tinfo->m_ti_rtxn))
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if (auto mdb_res = lmdb_txn_renew(m_tinfo->m_ti_rtxn))
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throw0(DB_ERROR_TXN_START(lmdb_error("Failed to renew a read transaction for the db: ", mdb_res).c_str()));
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didit = true;
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}
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@ -2467,7 +2526,7 @@ void BlockchainLMDB::block_txn_start(bool readonly)
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{
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m_writer = boost::this_thread::get_id();
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m_write_txn = new mdb_txn_safe();
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if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, *m_write_txn))
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if (auto mdb_res = lmdb_txn_begin(m_env, NULL, 0, *m_write_txn))
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{
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delete m_write_txn;
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m_write_txn = nullptr;
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@ -2545,8 +2604,6 @@ uint64_t BlockchainLMDB::add_block(const block& blk, const size_t& block_size, c
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}
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}
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uint64_t num_txs = m_num_txs;
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uint64_t num_outputs = m_num_outputs;
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try
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{
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BlockchainDB::add_block(blk, block_size, cumulative_difficulty, coins_generated, txs);
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@ -2557,8 +2614,6 @@ uint64_t BlockchainLMDB::add_block(const block& blk, const size_t& block_size, c
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}
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catch (...)
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{
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m_num_txs = num_txs;
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m_num_outputs = num_outputs;
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block_txn_abort();
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throw;
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}
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@ -2573,8 +2628,6 @@ void BlockchainLMDB::pop_block(block& blk, std::vector<transaction>& txs)
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block_txn_start(false);
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uint64_t num_txs = m_num_txs;
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uint64_t num_outputs = m_num_outputs;
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try
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{
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BlockchainDB::pop_block(blk, txs);
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@ -2582,8 +2635,6 @@ void BlockchainLMDB::pop_block(block& blk, std::vector<transaction>& txs)
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}
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catch (...)
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{
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m_num_txs = num_txs;
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m_num_outputs = num_outputs;
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block_txn_abort();
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throw;
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}
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@ -3257,8 +3308,6 @@ void BlockchainLMDB::migrate_0_1()
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lmdb_db_open(txn, LMDB_OUTPUT_AMOUNTS, MDB_INTEGERKEY | MDB_DUPSORT | MDB_DUPFIXED | MDB_CREATE, m_output_amounts, "Failed to open db handle for m_output_amounts");
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mdb_set_dupsort(txn, m_output_amounts, compare_uint64);
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txn.commit();
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m_num_txs = 0;
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m_num_outputs = 0;
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} while(0);
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do {
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@ -3329,12 +3378,9 @@ void BlockchainLMDB::migrate_0_1()
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throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs: ", result).c_str()));
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if (!i) {
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MDB_stat ms;
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mdb_stat(txn, m_output_txs, &ms);
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m_num_outputs = ms.ms_entries;
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mdb_stat(txn, m_txs, &ms);
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m_num_txs = i = ms.ms_entries;
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i = ms.ms_entries;
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if (i) {
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m_num_txs = i;
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MDB_val_set(pk, "txblk");
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result = mdb_cursor_get(c_props, &pk, &k, MDB_SET);
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if (result)
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@ -312,6 +312,9 @@ private:
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virtual void remove_spent_key(const crypto::key_image& k_image);
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uint64_t num_txs() const;
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uint64_t num_outputs() const;
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// Hard fork
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virtual void set_hard_fork_version(uint64_t height, uint8_t version);
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virtual uint8_t get_hard_fork_version(uint64_t height) const;
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@ -369,10 +372,8 @@ private:
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MDB_dbi m_properties;
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uint64_t m_num_txs;
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uint64_t m_num_outputs;
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mutable uint64_t m_cum_size; // used in batch size estimation
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mutable int m_cum_count;
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mutable unsigned int m_cum_count;
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std::string m_folder;
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mdb_txn_safe* m_write_txn; // may point to either a short-lived txn or a batch txn
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mdb_txn_safe* m_write_batch_txn; // persist batch txn outside of BlockchainLMDB
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@ -1986,12 +1986,14 @@ bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qbloc
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return false;
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}
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m_db->block_txn_start(true);
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resp.total_height = get_current_blockchain_height();
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size_t count = 0;
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for(size_t i = resp.start_height; i < resp.total_height && count < BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT; i++, count++)
|
||||
{
|
||||
resp.m_block_ids.push_back(m_db->get_block_hash_from_height(i));
|
||||
}
|
||||
m_db->block_txn_stop();
|
||||
return true;
|
||||
}
|
||||
//------------------------------------------------------------------
|
||||
|
|
@ -2022,6 +2024,7 @@ bool Blockchain::find_blockchain_supplement(const uint64_t req_start_block, cons
|
|||
}
|
||||
}
|
||||
|
||||
m_db->block_txn_start(true);
|
||||
total_height = get_current_blockchain_height();
|
||||
size_t count = 0;
|
||||
for(size_t i = start_height; i < total_height && count < max_count; i++, count++)
|
||||
|
|
@ -2032,6 +2035,7 @@ bool Blockchain::find_blockchain_supplement(const uint64_t req_start_block, cons
|
|||
get_transactions(blocks.back().first.tx_hashes, blocks.back().second, mis);
|
||||
CHECK_AND_ASSERT_MES(!mis.size(), false, "internal error, transaction from block not found");
|
||||
}
|
||||
m_db->block_txn_stop();
|
||||
return true;
|
||||
}
|
||||
//------------------------------------------------------------------
|
||||
|
|
|
|||
|
|
@ -219,40 +219,6 @@ namespace cryptonote
|
|||
return m_blockchain_storage.get_alternative_blocks_count();
|
||||
}
|
||||
//-----------------------------------------------------------------------------------------------
|
||||
bool core::lock_db_directory(const boost::filesystem::path &path)
|
||||
{
|
||||
// boost doesn't like locking directories...
|
||||
const boost::filesystem::path lock_path = path / ".daemon_lock";
|
||||
|
||||
try
|
||||
{
|
||||
// ensure the file exists
|
||||
std::ofstream(lock_path.string(), std::ios::out).close();
|
||||
|
||||
db_lock = boost::interprocess::file_lock(lock_path.string().c_str());
|
||||
LOG_PRINT_L1("Locking " << lock_path.string());
|
||||
if (!db_lock.try_lock())
|
||||
{
|
||||
LOG_ERROR("Failed to lock " << lock_path.string());
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
catch (const std::exception &e)
|
||||
{
|
||||
LOG_ERROR("Error trying to lock " << lock_path.string() << ": " << e.what());
|
||||
return false;
|
||||
}
|
||||
}
|
||||
//-----------------------------------------------------------------------------------------------
|
||||
bool core::unlock_db_directory()
|
||||
{
|
||||
db_lock.unlock();
|
||||
db_lock = boost::interprocess::file_lock();
|
||||
LOG_PRINT_L1("Blockchain directory successfully unlocked");
|
||||
return true;
|
||||
}
|
||||
//-----------------------------------------------------------------------------------------------
|
||||
bool core::init(const boost::program_options::variables_map& vm, const cryptonote::test_options *test_options)
|
||||
{
|
||||
start_time = std::time(nullptr);
|
||||
|
|
@ -284,11 +250,6 @@ namespace cryptonote
|
|||
// make sure the data directory exists, and try to lock it
|
||||
CHECK_AND_ASSERT_MES (boost::filesystem::exists(folder) || boost::filesystem::create_directories(folder), false,
|
||||
std::string("Failed to create directory ").append(folder.string()).c_str());
|
||||
if (!lock_db_directory (folder))
|
||||
{
|
||||
LOG_ERROR ("Failed to lock " << folder);
|
||||
return false;
|
||||
}
|
||||
|
||||
// check for blockchain.bin
|
||||
try
|
||||
|
|
@ -440,7 +401,6 @@ namespace cryptonote
|
|||
m_miner.stop();
|
||||
m_mempool.deinit();
|
||||
m_blockchain_storage.deinit();
|
||||
unlock_db_directory();
|
||||
return true;
|
||||
}
|
||||
//-----------------------------------------------------------------------------------------------
|
||||
|
|
|
|||
|
|
@ -763,24 +763,6 @@ namespace cryptonote
|
|||
*/
|
||||
bool relay_txpool_transactions();
|
||||
|
||||
/**
|
||||
* @brief locks a file in the BlockchainDB directory
|
||||
*
|
||||
* @param path the directory in which to place the file
|
||||
*
|
||||
* @return true if lock acquired successfully, otherwise false
|
||||
*/
|
||||
bool lock_db_directory(const boost::filesystem::path &path);
|
||||
|
||||
/**
|
||||
* @brief unlocks the db directory
|
||||
*
|
||||
* @note see lock_db_directory()
|
||||
*
|
||||
* @return true
|
||||
*/
|
||||
bool unlock_db_directory();
|
||||
|
||||
bool m_test_drop_download = true; //!< whether or not to drop incoming blocks (for testing)
|
||||
|
||||
uint64_t m_test_drop_download_height = 0; //!< height under which to drop incoming blocks, if doing so
|
||||
|
|
|
|||
Loading…
Reference in New Issue