Method trace_create

src/utilities/ntrace/traceplugin.cpp:53–106

}

Firebird::ITracePlugin* TraceFactoryImpl::trace_create(Firebird::CheckStatusWrapper* status,
	Firebird::ITraceInitInfo* initInfo)
{
	Firebird::MasterInterfacePtr master;
	const char* dbname = NULL;
	try
	{
		dbname = initInfo->getDatabaseName();
		if (!dbname)
			dbname = "";

		TracePluginConfig config;
		TraceCfgReader::readTraceConfiguration(initInfo->getConfigText(), dbname, config);

		Firebird::ITraceDatabaseConnection* connection = initInfo->getConnection();

		if (!config.enabled ||
			(config.connection_id && connection &&
				(connection->getConnectionID() != config.connection_id)))
		{
			return NULL; // Plugin is not needed, no error happened.
		}

		Firebird::AutoPtr<Firebird::ITraceLogWriter, Firebird::SimpleRelease>
			logWriter(initInfo->getLogWriter());

		if (logWriter)
			config.log_filename = "";

		return FB_NEW TracePluginImpl(this, config, initInfo);	// Everything is ok, we created a plugin

	}
	catch (Firebird::Exception& ex)
	{
		// put error into trace log
		Firebird::ITraceLogWriter* logWriter = initInfo->getLogWriter();
		if (logWriter)
		{
			const char* strEx = TracePluginImpl::marshal_exception(ex);
			Firebird::string err;
			if (dbname && dbname[0])
				err.printf("Error creating trace session for database \"%s\":\n%s\n", dbname, strEx);
			else
				err.printf("Error creating trace session for service manager attachment:\n%s\n", strEx);

			logWriter->write(err.c_str(), err.length());
			logWriter->release();
		}
		else
			ex.stuffException(status);
	}

	return NULL;
}


static Firebird::SimpleFactory<TraceFactoryImpl> traceFactory;