the old data maybe overwritten with new one

[Tony]

if send fast,the old data maybe overwritten with new one

[Tony]

fix it :

`
public void Start()
{
State state = new State(_MaxDatagramSize);

        _Socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
        _Socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.ReuseAddress, true);
        
        if (String.IsNullOrEmpty(_Ip))
        {
            _Socket.Bind(new IPEndPoint(IPAddress.Any, _Port)); // broadcast endpoint
        }
        else
        {
            _Socket.Bind(new IPEndPoint(_IPAddress, _Port));
        }

        _Events.HandleStarted(this);

        _Socket.BeginReceiveFrom(state.Buffer, 0, _MaxDatagramSize, SocketFlags.None, ref _Endpoint, _ReceiveCallback = (ar) =>
        {
            try
            {
                State so = (State)ar.AsyncState;
                int bytes = _Socket.EndReceiveFrom(ar, ref _Endpoint);

                string ipPort = _Endpoint.ToString();
                string ip = null;
                int port = 0;
                Common.ParseIpPort(ipPort, out ip, out port);

                if (!_RemoteSockets.Contains(ipPort))
                {
                    _RemoteSockets.AddReplace(ipPort, _Socket);
                    EndpointDetected?.Invoke(this, new EndpointMetadata(ip, port));
                }

                if (bytes == so.Buffer.Length)
                {
                    DatagramReceived?.Invoke(this, new Datagram(ip, port, so.Buffer));
                }
                else
                {
                    byte[] buffer = new byte[bytes];
                    Buffer.BlockCopy(so.Buffer, 0, buffer, 0, bytes);
                   // Console.WriteLine(Encoding.ASCII.GetString(buffer, 0, 50));
                    DatagramReceived?.Invoke(this, new Datagram(ip, port, buffer));
                }

                _Socket.BeginReceiveFrom(so.Buffer, 0, _MaxDatagramSize, SocketFlags.None, ref _Endpoint, _ReceiveCallback, so);

            }
            catch (Exception)
            {
                _Events.HandleStopped(this);
            }
        }, state);            
    }

`

[Joel Christner]

Sorry I'm just now seeing this! Any interest in putting this into a PR? Cheers and thanks for catching this!

[Joel Christner]

Cancel that, i see it now!

[Joel Christner]

Merged and published in NuGet v1.2.2, thanks for your contribution!