const std::list<plp::Device *> *get_device_list(int *err_flg);
Data *get_latest_data(std::string device_id_param,
int *err_flg);
+ DataRange *get_data_range(std::string device_id_param,
+ int *err_flg);
private:
DeviceManagerClient *_dev_man;
BusClient *_bus_client;