text: // Copyright (c) 2017-2020, The Superior 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.
  // Parts of this file are originally copyright (c) 2014-2017 The Monero Project
  #pragma once
  
  #include <boost/iostreams/stream_buffer.hpp>
  #include <boost/iostreams/stream.hpp>
  #include <boost/iostreams/device/back_inserter.hpp>
  #include <boost/iostreams/filtering_streambuf.hpp>
  #include <boost/filesystem/path.hpp>
  #include <boost/filesystem/operations.hpp>
  
  #include "cryptonote_basic/cryptonote_basic.h"
  #include "cryptonote_basic/cryptonote_boost_serialization.h"
  #include "cryptonote_core/blockchain.h"
  #include "blockchain_db/blockchain_db.h"
  
  #include <algorithm>
  #include <cstdio>
  #include <fstream>
  #include <boost/iostreams/copy.hpp>
  #include <atomic>
  
  #include "common/command_line.h"
  #include "version.h"
  
  #include "blockchain_utilities.h"
  
  
  using namespace cryptonote;
  
  
  class BlocksdatFile
  {
  public:
  
    bool store_blockchain_raw(cryptonote::Blockchain* cs, cryptonote::tx_memory_pool* txp,
        boost::filesystem::path& output_file, uint64_t use_block_height=0);
  
  protected:
  
    Blockchain* m_blockchain_storage;
  
    std::ofstream * m_raw_data_file;
  
    // open export file for write
    bool open_writer(const boost::filesystem::path& file_path, uint64_t block_stop);
    bool initialize_file(uint64_t block_stop);
    bool close();
    void write_block(const crypto::hash &block_hash);
  
  private:
  
    uint64_t m_cur_height; // tracks current height during export
    std::vector<crypto::hash> m_hashes;
  };
  