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168 lines
3.3 KiB
168 lines
3.3 KiB
//
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// Created by mwo on 5/11/15.
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//
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#include "MicroCore.h"
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namespace xmreg
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{
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void
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MicroBlockchainLMDB::sync()
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{
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//cout << "MicroBlockchainLMDB::sync()\n\n";
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// we open in readonly, so dont sync anything
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}
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/**
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* The constructor is interesting, as
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* m_mempool and m_blockchain_storage depend
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* on each other.
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*
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* So basically m_mempool is initialized with
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* reference to Blockchain (i.e., Blockchain&)
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* and m_blockchain_storage is initialized with
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* reference to m_mempool (i.e., tx_memory_pool&)
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*
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* The same is done in cryptonode::core.
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*/
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MicroCore::MicroCore():
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m_mempool(core_storage),
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core_storage(m_mempool),
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m_device {&hw::get_device("default")}
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{
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}
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/**
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* Initialized the MicroCore object.
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*
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* Create BlockchainLMDB on the heap.
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* Open database files located in blockchain_path.
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* Initialize m_blockchain_storage with the BlockchainLMDB object.
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*/
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bool
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MicroCore::init(const string& _blockchain_path, network_type nt)
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{
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blockchain_path = _blockchain_path;
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nettype = nt;
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//std::unique_ptr<BlockchainDB> db = std::make_unique<BlockchainLMDB>();
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std::unique_ptr<BlockchainDB> db = std::make_unique<MicroBlockchainLMDB>();
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try
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{
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// try opening lmdb database files
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db->open(blockchain_path, DBF_RDONLY);
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//db->open(blockchain_path, DBF_RDONLY | MDB_NOSYNC);
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//db->open(blockchain_path, MDB_RDONLY | MDB_NOSYNC);
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}
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catch (const std::exception& e)
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{
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cerr << "Error opening database: " << e.what();
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return false;
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}
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// check if the blockchain database
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// is successful opened
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if(!db->is_open())
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return false;
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// initialize Blockchain object to manage
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// the database.
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if (!core_storage.init(db.release(), nettype))
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{
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cerr << "Error opening database: core_storage->init(db, nettype)\n" ;
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return false;
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}
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if (!m_mempool.init())
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{
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cerr << "Error opening database: m_mempool.init()\n" ;
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return false;
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}
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initialization_succeded = true;
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return true;
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}
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/**
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* Get m_blockchain_storage.
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* Initialize m_blockchain_storage with the BlockchainLMDB object.
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*/
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Blockchain const&
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MicroCore::get_core() const
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{
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return core_storage;
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}
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tx_memory_pool const&
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MicroCore::get_mempool() const
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{
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return m_mempool;
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}
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bool
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MicroCore::get_block_from_height(uint64_t height, block& blk) const
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{
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try
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{
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blk = core_storage.get_db().get_block_from_height(height);
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}
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catch (const exception& e)
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{
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cerr << e.what() << endl;
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return false;
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}
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return true;
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}
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bool
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MicroCore::get_tx(crypto::hash const& tx_hash, transaction& tx) const
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{
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if (core_storage.have_tx(tx_hash))
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{
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// get transaction with given hash
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tx = core_storage.get_db().get_tx(tx_hash);
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return true;
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}
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return true;
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}
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hw::device* const
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MicroCore::get_device() const
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{
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return m_device;
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}
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bool
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MicroCore::init_success() const
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{
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return initialization_succeded;
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}
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MicroCore::~MicroCore()
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{
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//cout << "\n\nMicroCore::~MicroCore()\n\n";
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if (initialization_succeded)
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{
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//core_storage.get_db().safesyncmode(true);
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if (core_storage.get_db().is_open())
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core_storage.get_db().close();
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//cout << "\n\n core_storage.get_db().close();;\n\n";
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}
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}
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}
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