Ros_CSharp.TcpTransport.setKeepAlive C# (CSharp) Method

        private bool setKeepAlive(Socket sock, ulong time, ulong interval)
        {
            try
            {
                // resulting structure
                byte[] SIO_KEEPALIVE_VALS = new byte[3*bytesperlong];

                // array to hold input values
                ulong[] input = new ulong[3];

                // put input arguments in input array
                if (time == 0 || interval == 0) // enable disable keep-alive
                    input[0] = (0UL); // off
                else
                    input[0] = (1UL); // on

                input[1] = (time); // time millis
                input[2] = (interval); // interval millis

                // pack input into byte struct
                for (int i = 0; i < input.Length; i++)
                {
                    SIO_KEEPALIVE_VALS[i*bytesperlong + 3] =
                        (byte) (input[i] >> ((bytesperlong - 1)*bitsperbyte) & 0xff);
                    SIO_KEEPALIVE_VALS[i*bytesperlong + 2] =
                        (byte) (input[i] >> ((bytesperlong - 2)*bitsperbyte) & 0xff);
                    SIO_KEEPALIVE_VALS[i*bytesperlong + 1] =
                        (byte) (input[i] >> ((bytesperlong - 3)*bitsperbyte) & 0xff);
                    SIO_KEEPALIVE_VALS[i*bytesperlong + 0] =
                        (byte) (input[i] >> ((bytesperlong - 4)*bitsperbyte) & 0xff);
                }
                // create bytestruct for result (bytes pending on server socket)
                byte[] result = BitConverter.GetBytes(0);
                // write SIO_VALS to Socket IOControl
                sock.IOControl(IOControlCode.KeepAliveValues, SIO_KEEPALIVE_VALS, result);

                ByteDump(result);
            }
            catch (Exception)
            {
                return false;
            }
            return true;
        }