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@ -218,6 +218,39 @@ namespace cryptonote
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return m_blockchain_storage.get_alternative_blocks_count();
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}
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//-----------------------------------------------------------------------------------------------
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bool core::lock_db_directory(const boost::filesystem::path &path)
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{
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// boost doesn't like locking directories...
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const boost::filesystem::path lock_path = path / ".daemon_lock";
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try
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{
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// ensure the file exists
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std::ofstream(lock_path.string(), std::ios::out).close();
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db_lock = boost::interprocess::file_lock(lock_path.string().c_str());
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LOG_PRINT_L1("Locking " << lock_path.string());
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if (!db_lock.try_lock())
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{
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LOG_PRINT_L0("Failed to lock " << lock_path.string());
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return false;
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}
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return true;
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}
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catch (const std::exception &e)
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{
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LOG_PRINT_L0("Error trying to lock " << lock_path.string() << ": " << e.what());
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return false;
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}
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}
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//-----------------------------------------------------------------------------------------------
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bool core::unlock_db_directory()
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{
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db_lock.unlock();
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db_lock = boost::interprocess::file_lock();
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return true;
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}
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//-----------------------------------------------------------------------------------------------
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bool core::init(const boost::program_options::variables_map& vm)
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{
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bool r = handle_command_line(vm);
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@ -280,6 +313,13 @@ namespace cryptonote
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folder /= db->get_db_name();
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LOG_PRINT_L0("Loading blockchain from folder " << folder.string() << " ...");
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if (!lock_db_directory (folder))
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{
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LOG_ERROR ("Failed to lock " << folder);
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delete db;
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return false;
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}
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const std::string filename = folder.string();
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// temporarily default to fastest:async:1000
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blockchain_db_sync_mode sync_mode = db_async;
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@ -398,6 +438,7 @@ namespace cryptonote
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{
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m_blockchain_storage.deinit();
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}
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unlock_db_directory();
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return true;
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}
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//-----------------------------------------------------------------------------------------------
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