/**
         * <summary>
         *   Returns the current time in Unix format (number of
         *   seconds elapsed since Jan 1st, 1970).
         * <para>
         * </para>
         * <para>
         * </para>
         * </summary>
         * <returns>
         *   an integer corresponding to the current time in Unix format (number of
         *   seconds elapsed since Jan 1st, 1970)
         * </returns>
         * <para>
         *   On failure, throws an exception or returns <c>YGps.UNIXTIME_INVALID</c>.
         * </para>
         */
        public long get_unixTime()
        {
            long res;

            if (_func == null)
            {
                throw new YoctoApiProxyException("No Gps connected");
            }
            res = _func.get_unixTime();
            if (res == YAPI.INVALID_INT)
            {
                res = _UnixTime_INVALID;
            }
            return(res);
        }