Example #1
0
        private void outputWorker()
        {
            List <byte> dataToSend = new List <byte>();
            int         sent       = 0;

            int packetSizeCount = 0;
            int packetSizeSum   = 0;
            int packetSizeAvg   = 0;

            while (ShouldBeRunning)
            {
                Thread.Sleep(1);
                if (!socket.Connected)
                {
                    break;
                }

                dataToSend.Clear();

                packetSizeSum   = 0;
                packetSizeCount = 0;
                while (DataToSendQueue.myCount > 0)
                {
                    //packetSizeCount++;
                    //packetSizeSum += DataToSendQueue.Peek().Length;
                    dataToSend.AddRange(DataToSendQueue.DeQ());
                }

                if (dataToSend.Count == 0)
                {
                    continue;
                }

                //packetSizeAvg = packetSizeSum / packetSizeCount;

                try
                {
                    //DateTime pre = DateTime.Now;
                    //Send ALL bytes at once instead of "per packet", should be better
                    int r = socket.Send(dataToSend.ToArray());
                    //DateTime post = DateTime.Now;
                    sent += r;

                    //double ts = (post - pre).TotalSeconds;
                    //Trace.WriteLine("SocketComm output bytes actually sent: " + sent + " took " +ts + " seconds, Avg Packet Size:" + packetSizeAvg+ ", Packet Count"+packetSizeCount + " Rate="+(float)r/ts +"Bps");
                    //Trace.WriteLine("SocketComm output bytes actually sent: " + sent );
                    sent = 0;
                }
                catch (Exception E)
                {
                    System.Diagnostics.Debug.WriteLine(E.StackTrace);
                }
            }
        }
Example #2
0
        private void inputProcWorker()
        {
            byte[] aPacket;
            byte[] lenBytes     = new byte[4];
            byte[] data         = new byte[0];
            int    packetLength = -1;

            byte[] oldData = new byte[0];
            while (ShouldBeRunning)
            {
                while (DataReceived.myCount > 0)
                {
                    try
                    {
                        byte[] inData         = DataReceived.DeQ() as byte[];
                        int    requiredLength = oldData.Length + inData.Length;
                        //if (data.Length < requiredLength)
                        data = new byte[requiredLength];                            // make data large enough to contain old and new
                        Array.Copy(oldData, 0, data, 0, oldData.Length);            // copy the existing data into the resized array, at the front
                        Array.Copy(inData, 0, data, oldData.Length, inData.Length); // copy the newly dequeued data into the resized array, at the end.

                        if (packetLength == -1 &&                                   // if the length of the next packet is unknown, and
                            data.Length >= 4)                                       // we have that much data on hand,
                        {
                            Array.Copy(data, lenBytes, 4);                          // copy
                            packetLength = BitConverter.ToInt32(lenBytes, 0);
                            if (packetLength <= 0 || packetLength > 5000)
                            {
                                throw new FormatException("fast packet length " + packetLength + " is unreasonably long.");
                            }
                        }

                        if (packetLength != -1 &&            // we know how much data goes in the next packet, and
                            data.Length >= packetLength + 4) // we have that much data on hand,
                        {
                            //Trace.WriteLine("fast Processing " + packetLength + " / " + data.Length);
                            aPacket = new byte[packetLength];                              // make a packet buffer
                            Array.Copy(data, 4, aPacket, 0, packetLength);                 // copy the data for this packet into the packet buffer
                            CallPacketReceived(aPacket);                                   // send this packet off for processing
                            int unCopiedBytes = data.Length - (packetLength + 4);          // calculate bytes that were not in that packet (length of packet + 4 byte length header)
                            oldData = new byte[unCopiedBytes];
                            Array.Copy(data, packetLength + 4, oldData, 0, unCopiedBytes); // shift the uncopied bytes up to the front (for queue-like behavior)
                            packetLength = -1;                                             // signal the unknown length of the next packet
                        }
                    }
                    catch (Exception E)
                    {
                        Trace.WriteLine(E.Message);
                    }
                }
                //Trace.WriteLine("sleeping");
                Thread.Sleep(10);
            }
        }