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Diffstat (limited to 'src/blockchain_converter/blockchain_import.cpp')
| -rw-r--r-- | src/blockchain_converter/blockchain_import.cpp | 770 |
1 files changed, 0 insertions, 770 deletions
diff --git a/src/blockchain_converter/blockchain_import.cpp b/src/blockchain_converter/blockchain_import.cpp deleted file mode 100644 index 6777cc8fb..000000000 --- a/src/blockchain_converter/blockchain_import.cpp +++ /dev/null @@ -1,770 +0,0 @@ -// Copyright (c) 2014-2015, The Monero Project -// -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without modification, are -// permitted provided that the following conditions are met: -// -// 1. Redistributions of source code must retain the above copyright notice, this list of -// conditions and the following disclaimer. -// -// 2. Redistributions in binary form must reproduce the above copyright notice, this list -// of conditions and the following disclaimer in the documentation and/or other -// materials provided with the distribution. -// -// 3. Neither the name of the copyright holder nor the names of its contributors may be -// used to endorse or promote products derived from this software without specific -// prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY -// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL -// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF -// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -#include <atomic> -#include <cstdio> -#include <algorithm> -#include <fstream> - -#include <boost/filesystem.hpp> -#include "bootstrap_file.h" -#include "bootstrap_serialization.h" -#include "cryptonote_core/cryptonote_format_utils.h" -#include "serialization/binary_utils.h" // dump_binary(), parse_binary() -#include "serialization/json_utils.h" // dump_json() -#include "include_base_utils.h" - -#include <lmdb.h> // for db flag arguments - -#include "fake_core.h" - -unsigned int epee::g_test_dbg_lock_sleep = 0; - -namespace -{ -// CONFIG -bool opt_batch = true; -bool opt_verify = true; // use add_new_block, which does verification before calling add_block -bool opt_resume = true; -bool opt_testnet = true; - -// number of blocks per batch transaction -// adjustable through command-line argument according to available RAM -#if !defined(WIN32) -uint64_t db_batch_size = 20000; -#else -// set a lower default batch size, pending possible LMDB issue with large transaction size -uint64_t db_batch_size = 1000; -#endif - -// when verifying, use a smaller default batch size so progress is more -// frequently saved -uint64_t db_batch_size_verify = 5000; - -std::string refresh_string = "\r \r"; -} - - - -namespace po = boost::program_options; - -using namespace cryptonote; -using namespace epee; - - -int parse_db_arguments(const std::string& db_arg_str, std::string& db_engine, int& mdb_flags) -{ - std::vector<std::string> db_args; - boost::split(db_args, db_arg_str, boost::is_any_of("#")); - db_engine = db_args.front(); - boost::algorithm::trim(db_engine); - - if (db_args.size() == 1) - { - return 0; - } - else if (db_args.size() > 2) - { - std::cerr << "unrecognized database argument format: " << db_arg_str << ENDL; - return 1; - } - - std::string db_arg_str2 = db_args[1]; - boost::split(db_args, db_arg_str2, boost::is_any_of(",")); - for (auto& it : db_args) - { - boost::algorithm::trim(it); - if (it.empty()) - continue; - LOG_PRINT_L1("LMDB flag: " << it); - if (it == "nosync") - mdb_flags |= MDB_NOSYNC; - else if (it == "nometasync") - mdb_flags |= MDB_NOMETASYNC; - else if (it == "writemap") - mdb_flags |= MDB_WRITEMAP; - else if (it == "mapasync") - mdb_flags |= MDB_MAPASYNC; - else if (it == "nordahead") - mdb_flags |= MDB_NORDAHEAD; - else - { - std::cerr << "unrecognized database flag: " << it << ENDL; - return 1; - } - } - return 0; -} - - -template <typename FakeCore> -int pop_blocks(FakeCore& simple_core, int num_blocks) -{ - bool use_batch = false; - if (opt_batch) - { - if (simple_core.support_batch) - use_batch = true; - else - LOG_PRINT_L0("WARNING: batch transactions enabled but unsupported or unnecessary for this database engine - ignoring"); - } - - if (use_batch) - simple_core.batch_start(); - - int quit = 0; - block popped_block; - std::vector<transaction> popped_txs; - for (int i=0; i < num_blocks; ++i) - { - // simple_core.m_storage.pop_block_from_blockchain() is private, so call directly through db - simple_core.m_storage.get_db().pop_block(popped_block, popped_txs); - quit = 1; - } - - - - if (use_batch) - { - if (quit > 1) - { - // There was an error, so don't commit pending data. - // Destructor will abort write txn. - } - else - { - simple_core.batch_stop(); - } -#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB) - simple_core.m_storage.get_db().show_stats(); -#endif - } - - return num_blocks; -} - -template <typename FakeCore> -int import_from_file(FakeCore& simple_core, std::string& import_file_path, uint64_t stop_height=0) -{ -#if !defined(BLOCKCHAIN_DB) - static_assert(std::is_same<fake_core_memory, FakeCore>::value || std::is_same<fake_core_lmdb, FakeCore>::value, - "FakeCore constraint error"); -#endif -#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB) - if (std::is_same<fake_core_lmdb, FakeCore>::value) - { - // Reset stats, in case we're using newly created db, accumulating stats - // from addition of genesis block. - // This aligns internal db counts with importer counts. - simple_core.m_storage.get_db().reset_stats(); - } -#endif - boost::filesystem::path raw_file_path(import_file_path); - boost::system::error_code ec; - if (!boost::filesystem::exists(raw_file_path, ec)) - { - LOG_PRINT_L0("bootstrap file not found: " << raw_file_path); - return false; - } - - BootstrapFile bootstrap; - // BootstrapFile bootstrap(import_file_path); - uint64_t total_source_blocks = bootstrap.count_blocks(import_file_path); - LOG_PRINT_L0("bootstrap file last block number: " << total_source_blocks-1 << " (zero-based height) total blocks: " << total_source_blocks); - - std::cout << ENDL; - std::cout << "Preparing to read blocks..." << ENDL; - std::cout << ENDL; - - std::ifstream import_file; - import_file.open(import_file_path, std::ios_base::binary | std::ifstream::in); - - uint64_t h = 0; - uint64_t num_imported = 0; - if (import_file.fail()) - { - LOG_PRINT_L0("import_file.open() fail"); - return false; - } - - // 4 byte magic + (currently) 1024 byte header structures - bootstrap.seek_to_first_chunk(import_file); - - std::string str1; - char buffer1[1024]; - char buffer_block[BUFFER_SIZE]; - block b; - transaction tx; - int quit = 0; - uint64_t bytes_read = 0; - - uint64_t start_height = 1; - if (opt_resume) - start_height = simple_core.m_storage.get_current_blockchain_height(); - - // Note that a new blockchain will start with block number 0 (total blocks: 1) - // due to genesis block being added at initialization. - - if (! stop_height) - { - stop_height = total_source_blocks - 1; - } - - // These are what we'll try to use, and they don't have to be a determination - // from source and destination blockchains, but those are the defaults. - LOG_PRINT_L0("start block: " << start_height << " stop block: " << - stop_height); - - bool use_batch = false; - if (opt_batch) - { - if (simple_core.support_batch) - use_batch = true; - else - LOG_PRINT_L0("WARNING: batch transactions enabled but unsupported or unnecessary for this database engine - ignoring"); - } - - if (use_batch) - simple_core.batch_start(); - - LOG_PRINT_L0("Reading blockchain from bootstrap file..."); - std::cout << ENDL; - - // Within the loop, we skip to start_height before we start adding. - // TODO: Not a bottleneck, but we can use what's done in count_blocks() and - // only do the chunk size reads, skipping the chunk content reads until we're - // at start_height. - while (! quit) - { - uint32_t chunk_size; - import_file.read(buffer1, sizeof(chunk_size)); - // TODO: bootstrap.read_chunk(); - if (! import_file) { - std::cout << refresh_string; - LOG_PRINT_L0("End of file reached"); - quit = 1; - break; - } - bytes_read += sizeof(chunk_size); - - str1.assign(buffer1, sizeof(chunk_size)); - if (! ::serialization::parse_binary(str1, chunk_size)) - { - throw std::runtime_error("Error in deserialization of chunk size"); - } - LOG_PRINT_L1("chunk_size: " << chunk_size); - - if (chunk_size > BUFFER_SIZE) - { - LOG_PRINT_L0("WARNING: chunk_size " << chunk_size << " > BUFFER_SIZE " << BUFFER_SIZE); - throw std::runtime_error("Aborting: chunk size exceeds buffer size"); - } - if (chunk_size > 100000) - { - LOG_PRINT_L0("NOTE: chunk_size " << chunk_size << " > 100000"); - } - else if (chunk_size < 0) { - LOG_PRINT_L0("ERROR: chunk_size " << chunk_size << " < 0"); - return 2; - } - import_file.read(buffer_block, chunk_size); - if (! import_file) { - LOG_PRINT_L0("ERROR: unexpected end of file: bytes read before error: " - << import_file.gcount() << " of chunk_size " << chunk_size); - return 2; - } - bytes_read += chunk_size; - LOG_PRINT_L3("Total bytes read: " << bytes_read); - - if (h + NUM_BLOCKS_PER_CHUNK < start_height + 1) - { - h += NUM_BLOCKS_PER_CHUNK; - continue; - } - if (h > stop_height) - { - std::cout << refresh_string << "block " << h-1 - << " / " << stop_height - << std::flush; - std::cout << ENDL << ENDL; - LOG_PRINT_L0("Specified block number reached - stopping. block: " << h-1 << " total blocks: " << h); - quit = 1; - break; - } - - try - { - str1.assign(buffer_block, chunk_size); - bootstrap::block_package bp; - if (! ::serialization::parse_binary(str1, bp)) - throw std::runtime_error("Error in deserialization of chunk"); - - int display_interval = 1000; - int progress_interval = 10; - // NOTE: use of NUM_BLOCKS_PER_CHUNK is a placeholder in case multi-block chunks are later supported. - for (int chunk_ind = 0; chunk_ind < NUM_BLOCKS_PER_CHUNK; ++chunk_ind) - { - ++h; - if ((h-1) % display_interval == 0) - { - std::cout << refresh_string; - LOG_PRINT_L0("loading block number " << h-1); - } - else - { - LOG_PRINT_L3("loading block number " << h-1); - } - b = bp.block; - LOG_PRINT_L2("block prev_id: " << b.prev_id << ENDL); - - if ((h-1) % progress_interval == 0) - { - std::cout << refresh_string << "block " << h-1 - << " / " << stop_height - << std::flush; - } - - std::vector<transaction> txs; - std::vector<transaction> archived_txs; - - archived_txs = bp.txs; - - // std::cout << refresh_string; - // LOG_PRINT_L1("txs: " << archived_txs.size()); - - // if archived_txs is invalid - // { - // std::cout << refresh_string; - // LOG_PRINT_RED_L0("exception while de-archiving txs, height=" << h); - // quit = 1; - // break; - // } - - // tx number 1: coinbase tx - // tx number 2 onwards: archived_txs - unsigned int tx_num = 1; - for (const transaction& tx : archived_txs) - { - ++tx_num; - // if tx is invalid - // { - // LOG_PRINT_RED_L0("exception while indexing tx from txs, height=" << h <<", tx_num=" << tx_num); - // quit = 1; - // break; - // } - - // std::cout << refresh_string; - // LOG_PRINT_L1("tx hash: " << get_transaction_hash(tx)); - - // crypto::hash hsh = null_hash; - // size_t blob_size = 0; - // NOTE: all tx hashes except for coinbase tx are available in the block data - // get_transaction_hash(tx, hsh, blob_size); - // LOG_PRINT_L0("tx " << tx_num << " " << hsh << " : " << ENDL); - // LOG_PRINT_L0(obj_to_json_str(tx) << ENDL); - - // add blocks with verification. - // for Blockchain and blockchain_storage add_new_block(). - if (opt_verify) - { - // crypto::hash hsh = null_hash; - // size_t blob_size = 0; - // get_transaction_hash(tx, hsh, blob_size); - tx_verification_context tvc = AUTO_VAL_INIT(tvc); - bool r = true; - r = simple_core.m_pool.add_tx(tx, tvc, true); - if (!r) - { - LOG_PRINT_RED_L0("failed to add transaction to transaction pool, height=" << h <<", tx_num=" << tx_num); - quit = 1; - break; - } - } - else - { - // for add_block() method, without (much) processing. - // don't add coinbase transaction to txs. - // - // because add_block() calls - // add_transaction(blk_hash, blk.miner_tx) first, and - // then a for loop for the transactions in txs. - txs.push_back(tx); - } - } - - if (opt_verify) - { - block_verification_context bvc = boost::value_initialized<block_verification_context>(); - simple_core.m_storage.add_new_block(b, bvc); - - if (bvc.m_verifivation_failed) - { - LOG_PRINT_L0("Failed to add block to blockchain, verification failed, height = " << h); - LOG_PRINT_L0("skipping rest of file"); - // ok to commit previously batched data because it failed only in - // verification of potential new block with nothing added to batch - // yet - quit = 1; - break; - } - if (! bvc.m_added_to_main_chain) - { - LOG_PRINT_L0("Failed to add block to blockchain, height = " << h); - LOG_PRINT_L0("skipping rest of file"); - // make sure we don't commit partial block data - quit = 2; - break; - } - } - else - { - size_t block_size; - difficulty_type cumulative_difficulty; - uint64_t coins_generated; - - block_size = bp.block_size; - cumulative_difficulty = bp.cumulative_difficulty; - coins_generated = bp.coins_generated; - - // std::cout << refresh_string; - // LOG_PRINT_L2("block_size: " << block_size); - // LOG_PRINT_L2("cumulative_difficulty: " << cumulative_difficulty); - // LOG_PRINT_L2("coins_generated: " << coins_generated); - - try - { - simple_core.add_block(b, block_size, cumulative_difficulty, coins_generated, txs); - } - catch (const std::exception& e) - { - std::cout << refresh_string; - LOG_PRINT_RED_L0("Error adding block to blockchain: " << e.what()); - quit = 2; // make sure we don't commit partial block data - break; - } - } - ++num_imported; - - if (use_batch) - { - if ((h-1) % db_batch_size == 0) - { - std::cout << refresh_string; - // zero-based height - std::cout << ENDL << "[- batch commit at height " << h-1 << " -]" << ENDL; - simple_core.batch_stop(); - simple_core.batch_start(); - std::cout << ENDL; -#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB) - simple_core.m_storage.get_db().show_stats(); -#endif - } - } - } - } - catch (const std::exception& e) - { - std::cout << refresh_string; - LOG_PRINT_RED_L0("exception while reading from file, height=" << h); - return 2; - } - } // while - - import_file.close(); - - if (use_batch) - { - if (quit > 1) - { - // There was an error, so don't commit pending data. - // Destructor will abort write txn. - } - else - { - simple_core.batch_stop(); - } -#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB) - simple_core.m_storage.get_db().show_stats(); -#endif - LOG_PRINT_L0("Number of blocks imported: " << num_imported) - if (h > 0) - // TODO: if there was an error, the last added block is probably at zero-based height h-2 - LOG_PRINT_L0("Finished at block: " << h-1 << " total blocks: " << h); - } - std::cout << ENDL; - return 0; -} - -int main(int argc, char* argv[]) -{ - std::string import_filename = BLOCKCHAIN_RAW; -#if defined(BLOCKCHAIN_DB) && (BLOCKCHAIN_DB == DB_MEMORY) - std::string default_db_engine = "memory"; -#else - std::string default_db_engine = "lmdb"; -#endif - - uint32_t log_level = LOG_LEVEL_0; - uint64_t num_blocks = 0; - uint64_t block_height = 0; - std::string dirname; - std::string db_arg_str; - - boost::filesystem::path default_data_path {tools::get_default_data_dir()}; - boost::filesystem::path default_testnet_data_path {default_data_path / "testnet"}; - - po::options_description desc_cmd_only("Command line options"); - po::options_description desc_cmd_sett("Command line options and settings options"); - const command_line::arg_descriptor<uint32_t> arg_log_level = {"log-level", "", log_level}; - const command_line::arg_descriptor<uint64_t> arg_block_height = {"block-number", "stop at block number", block_height}; - const command_line::arg_descriptor<uint64_t> arg_batch_size = {"batch-size", "", db_batch_size}; - const command_line::arg_descriptor<uint64_t> arg_pop_blocks = {"pop-blocks", "", num_blocks}; - const command_line::arg_descriptor<bool> arg_testnet_on = { - "testnet" - , "Run on testnet." - , false - }; - const command_line::arg_descriptor<bool> arg_count_blocks = { - "count-blocks" - , "Count blocks in bootstrap file and exit" - , false - }; - const command_line::arg_descriptor<std::string> arg_database = { - "database", "available: memory, lmdb" - , default_db_engine - }; - const command_line::arg_descriptor<bool> arg_verify = {"verify", - "Verify blocks and transactions during import", true}; - const command_line::arg_descriptor<bool> arg_batch = {"batch", - "Batch transactions for faster import", true}; - const command_line::arg_descriptor<bool> arg_resume = {"resume", - "Resume from current height if output database already exists", true}; - - command_line::add_arg(desc_cmd_sett, command_line::arg_data_dir, default_data_path.string()); - command_line::add_arg(desc_cmd_sett, command_line::arg_testnet_data_dir, default_testnet_data_path.string()); - command_line::add_arg(desc_cmd_sett, arg_log_level); - command_line::add_arg(desc_cmd_sett, arg_block_height); - command_line::add_arg(desc_cmd_sett, arg_batch_size); - command_line::add_arg(desc_cmd_sett, arg_pop_blocks); - command_line::add_arg(desc_cmd_sett, arg_testnet_on); - command_line::add_arg(desc_cmd_sett, arg_database); - - command_line::add_arg(desc_cmd_only, arg_count_blocks); - command_line::add_arg(desc_cmd_only, command_line::arg_help); - - // call add_options() directly for these arguments since - // command_line helpers support only boolean switch, not boolean argument - desc_cmd_sett.add_options() - (arg_verify.name, make_semantic(arg_verify), arg_verify.description) - (arg_batch.name, make_semantic(arg_batch), arg_batch.description) - (arg_resume.name, make_semantic(arg_resume), arg_resume.description) - ; - - po::options_description desc_options("Allowed options"); - desc_options.add(desc_cmd_only).add(desc_cmd_sett); - - po::variables_map vm; - bool r = command_line::handle_error_helper(desc_options, [&]() - { - po::store(po::parse_command_line(argc, argv, desc_options), vm); - po::notify(vm); - return true; - }); - if (! r) - return 1; - - log_level = command_line::get_arg(vm, arg_log_level); - opt_verify = command_line::get_arg(vm, arg_verify); - opt_batch = command_line::get_arg(vm, arg_batch); - opt_resume = command_line::get_arg(vm, arg_resume); - block_height = command_line::get_arg(vm, arg_block_height); - db_batch_size = command_line::get_arg(vm, arg_batch_size); - - if (command_line::get_arg(vm, command_line::arg_help)) - { - std::cout << CRYPTONOTE_NAME << " v" << MONERO_VERSION_FULL << ENDL << ENDL; - std::cout << desc_options << std::endl; - return 1; - } - - if (! opt_batch && ! vm["batch-size"].defaulted()) - { - std::cerr << "Error: batch-size set, but batch option not enabled" << ENDL; - exit(1); - } - if (! db_batch_size) - { - std::cerr << "Error: batch-size must be > 0" << ENDL; - exit(1); - } - if (opt_verify && vm["batch-size"].defaulted()) - { - // usually want batch size default lower if verify on, so progress can be - // frequently saved. - // - // currently, with Windows, default batch size is low, so ignore - // default db_batch_size_verify unless it's even lower - if (db_batch_size > db_batch_size_verify) - { - db_batch_size = db_batch_size_verify; - } - } - uint64_t stop_height = 0; - if (! vm["block-number"].defaulted()) - { - stop_height = block_height; - } - - std::vector<std::string> db_engines {"memory", "lmdb"}; - - opt_testnet = command_line::get_arg(vm, arg_testnet_on); - auto data_dir_arg = opt_testnet ? command_line::arg_testnet_data_dir : command_line::arg_data_dir; - dirname = command_line::get_arg(vm, data_dir_arg); - db_arg_str = command_line::get_arg(vm, arg_database); - - log_space::get_set_log_detalisation_level(true, log_level); - log_space::log_singletone::add_logger(LOGGER_CONSOLE, NULL, NULL); - LOG_PRINT_L0("Starting..."); - LOG_PRINT_L0("Setting log level = " << log_level); - - boost::filesystem::path file_path {dirname}; - std::string import_file_path; - - import_file_path = (file_path / "export" / import_filename).string(); - if (command_line::has_arg(vm, arg_count_blocks)) - { - BootstrapFile bootstrap; - bootstrap.count_blocks(import_file_path); - exit(0); - } - - - std::string db_engine; - int mdb_flags = 0; - int res = 0; - res = parse_db_arguments(db_arg_str, db_engine, mdb_flags); - if (res) - { - std::cerr << "Error parsing database argument(s)" << ENDL; - exit(1); - } - - if (std::find(db_engines.begin(), db_engines.end(), db_engine) == db_engines.end()) - { - std::cerr << "Invalid database engine: " << db_engine << std::endl; - exit(1); - } - - LOG_PRINT_L0("database: " << db_engine); - LOG_PRINT_L0("verify: " << std::boolalpha << opt_verify << std::noboolalpha); - if (opt_batch) - { - LOG_PRINT_L0("batch: " << std::boolalpha << opt_batch << std::noboolalpha - << " batch size: " << db_batch_size); - } - else - { - LOG_PRINT_L0("batch: " << std::boolalpha << opt_batch << std::noboolalpha); - } - LOG_PRINT_L0("resume: " << std::boolalpha << opt_resume << std::noboolalpha); - LOG_PRINT_L0("testnet: " << std::boolalpha << opt_testnet << std::noboolalpha); - - LOG_PRINT_L0("bootstrap file path: " << import_file_path); - LOG_PRINT_L0("database path: " << file_path.string()); - - try - { - - // fake_core needed for verification to work when enabled. - // - // NOTE: don't need fake_core method of doing things when we're going to call - // BlockchainDB add_block() directly and have available the 3 block - // properties to do so. Both ways work, but fake core isn't necessary in that - // circumstance. - - // for multi_db_runtime: -#if !defined(BLOCKCHAIN_DB) - if (db_engine == "lmdb") - { - fake_core_lmdb simple_core(dirname, opt_testnet, opt_batch, mdb_flags); - import_from_file(simple_core, import_file_path, stop_height); - } - else if (db_engine == "memory") - { - fake_core_memory simple_core(dirname, opt_testnet); - import_from_file(simple_core, import_file_path, stop_height); - } - else - { - std::cerr << "database engine unrecognized" << ENDL; - exit(1); - } - - // for multi_db_compile: -#else - if (db_engine != default_db_engine) - { - std::cerr << "Invalid database engine for compiled version: " << db_engine << std::endl; - exit(1); - } -#if BLOCKCHAIN_DB == DB_LMDB - fake_core_lmdb simple_core(dirname, opt_testnet, opt_batch, mdb_flags); -#else - fake_core_memory simple_core(dirname, opt_testnet); -#endif - - if (! vm["pop-blocks"].defaulted()) - { - num_blocks = command_line::get_arg(vm, arg_pop_blocks); - LOG_PRINT_L0("height: " << simple_core.m_storage.get_current_blockchain_height()); - pop_blocks(simple_core, num_blocks); - LOG_PRINT_L0("height: " << simple_core.m_storage.get_current_blockchain_height()); - exit(0); - } - - import_from_file(simple_core, import_file_path, stop_height); -#endif - - } - catch (const DB_ERROR& e) - { - std::cout << std::string("Error loading blockchain db: ") + e.what() + " -- shutting down now" << ENDL; - exit(1); - } - - // destructors called at exit: - // - // ensure db closed - // - transactions properly checked and handled - // - disk sync if needed - // - // fake_core object's destructor is called when it goes out of scope. For an - // LMDB fake_core, it calls Blockchain::deinit() on its object, which in turn - // calls delete on its BlockchainDB derived class' object, which closes its - // files. -} |