disk_device_data
disk_device_data *write_lock_disk_device(partition_id partitionID);
disk_device_data *read_lock_disk_device(partition_id partitionID);
disk_device_data *get_disk_device(partition_id partitionID);
disk_device_data *DeviceData();
const disk_device_data *DeviceData() const;
disk_device_data fDeviceData;
const disk_device_data *fDevice;
const disk_device_data* fDevice;
disk_device_data*
const disk_device_data*
disk_device_data*
disk_device_data*
disk_device_data*
disk_device_data*
disk_device_data*
disk_device_data*
typedef std::map<partition_id, disk_device_data*> DiskDeviceMap;
disk_device_data* device = new disk_device_data;
disk_device_data* data = get_disk_device(id);