ffadb6571a
This allows an LMDB database to be used as the blockchain to export. Adjust SOURCE_DB in src/blockchain_converter/blockchain_export.h depending on needs. Defaults to DB_MEMORY. DB_MEMORY is a sensible default for users migrating to LMDB, as it allows the exporter to use the in-memory blockchain while the other binaries work with LMDB, without recompiling anything.
88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
// Copyright (c) 2014-2015, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include <boost/archive/binary_oarchive.hpp>
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#include <boost/iostreams/stream_buffer.hpp>
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#include <boost/iostreams/stream.hpp>
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#include <boost/iostreams/device/back_inserter.hpp>
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#include "cryptonote_core/cryptonote_basic.h"
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#include "cryptonote_core/blockchain_storage.h"
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#include "cryptonote_core/blockchain.h"
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#include "blockchain_db/blockchain_db.h"
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#include "blockchain_db/lmdb/db_lmdb.h"
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// CONFIG: choose one of the three #define's
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//
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// DB_MEMORY is a sensible default for users migrating to LMDB, as it allows
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// the exporter to use the in-memory blockchain while the other binaries
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// work with LMDB, without recompiling anything.
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//
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#define SOURCE_DB DB_MEMORY
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// #define SOURCE_DB DB_LMDB
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// to use global compile-time setting (DB_MEMORY or DB_LMDB):
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// #define SOURCE_DB BLOCKCHAIN_DB
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using namespace cryptonote;
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class BlockchainExport
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{
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public:
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#if SOURCE_DB == DB_MEMORY
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bool store_blockchain_raw(cryptonote::blockchain_storage* cs, cryptonote::tx_memory_pool* txp,
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boost::filesystem::path& output_dir, uint64_t use_block_height=0);
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#else
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bool store_blockchain_raw(cryptonote::Blockchain* cs, cryptonote::tx_memory_pool* txp,
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boost::filesystem::path& output_dir, uint64_t use_block_height=0);
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#endif
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protected:
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#if SOURCE_DB == DB_MEMORY
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blockchain_storage* m_blockchain_storage;
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#else
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Blockchain* m_blockchain_storage;
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#endif
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tx_memory_pool* m_tx_pool;
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typedef std::vector<char> buffer_type;
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std::ofstream * m_raw_data_file;
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boost::archive::binary_oarchive * m_raw_archive;
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buffer_type m_buffer;
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boost::iostreams::stream<boost::iostreams::back_insert_device<buffer_type>>* m_output_stream;
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// open export file for write
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bool open(const boost::filesystem::path& dir_path);
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bool close();
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void write_block(block& block);
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void serialize_block_to_text_buffer(const block& block);
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void buffer_serialize_tx(const transaction& tx);
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void buffer_write_num_txs(const std::list<transaction> txs);
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void flush_chunk();
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};
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