# cryptonote\_core

```
     tx_memory_pool m_mempool; //!< transaction pool instance
     Blockchain m_blockchain_storage; //!< Blockchain instance

     i_cryptonote_protocol* m_pprotocol; //!< cryptonote protocol instance

     epee::critical_section m_incoming_tx_lock; //!< incoming transaction lock

     //m_miner and m_miner_addres are probably temporary here
     miner m_miner; //!< miner instance
     account_public_address m_miner_address; //!< address to mine to (for miner instance)

     std::string m_config_folder; //!< folder to look in for configs and other files

     cryptonote_protocol_stub m_protocol_stub; //!< cryptonote protocol stub instance

     epee::math_helper::once_a_time_seconds<60*60*12, false> m_store_blockchain_interval; //!< interval for manual storing of Blockchain, if enabled
     epee::math_helper::once_a_time_seconds<60*60*2, true> m_fork_moaner; //!< interval for checking HardFork status
     epee::math_helper::once_a_time_seconds<60*2, false> m_txpool_auto_relayer; //!< interval for checking re-relaying txpool transactions
     epee::math_helper::once_a_time_seconds<60*60*12, true> m_check_updates_interval; //!< interval for checking for new versions
     epee::math_helper::once_a_time_seconds<60*10, true> m_check_disk_space_interval; //!< interval for checking for disk space

     std::atomic<bool> m_starter_message_showed; //!< has the "daemon will sync now" message been shown?

     uint64_t m_target_blockchain_height; //!< blockchain height target

     network_type m_nettype; //!< which network are we on?

     std::string m_checkpoints_path; //!< path to json checkpoints file
     time_t m_last_dns_checkpoints_update; //!< time when dns checkpoints were last updated
     time_t m_last_json_checkpoints_update; //!< time when json checkpoints were last updated

     std::atomic_flag m_checkpoints_updating; //!< set if checkpoints are currently updating to avoid multiple threads attempting to update at once
     bool m_disable_dns_checkpoints;

     size_t block_sync_size;

     time_t start_time;

     std::unordered_set<crypto::hash> bad_semantics_txes[2];
     boost::mutex bad_semantics_txes_lock;

     enum {
       UPDATES_DISABLED,
       UPDATES_NOTIFY,
       UPDATES_DOWNLOAD,
       UPDATES_UPDATE,
     } check_updates_level;

     tools::download_async_handle m_update_download;
     size_t m_last_update_length;
     boost::mutex m_update_mutex;

     bool m_fluffy_blocks_enabled;
     bool m_offline;
```


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