double _byte_start; //!< the starting location in the file being sent.
int _length; //!< the length of the transferred piece.
file_time _time; //!< the timestamp on the file.
double _byte_start; //!< the starting location in the file being sent.
int _length; //!< the length of the transferred piece.
file_time _time; //!< the timestamp on the file.