Exemple #1
0
        private void ListenForClients()
        {
            while (!shouldStop)
            {
                try
                {
                    byte[]   buffer         = new byte[Constants.DATAGRAM_DATA_SIZE];
                    EndPoint remoteEndPoint = (EndPoint) new IPEndPoint(IPAddress.Any, 0);
                    int      bytesRead      = socket.ReceiveFrom(buffer, ref remoteEndPoint);
                    byte[]   data           = new byte[bytesRead];
                    Array.Copy(sourceArray: buffer, destinationArray: data, length: bytesRead);

                    //we have the message and the address of the remote endpoint so pass it to anyone interested
                    UdpDataReceiveEventArgs args = new UdpDataReceiveEventArgs(data, (IPEndPoint)remoteEndPoint);
                    OnDataReceive(args);
                }
                catch (SocketException ex)
                {
                    if (ex.SocketErrorCode != SocketError.TimedOut)
                    {
                        //if a socket error other than timeout occurs, pass the error to anyone interested - do not break the server loop!
                        UdpDataReceiveErrorEventArgs args = new UdpDataReceiveErrorEventArgs(ex);
                        OnDataReceiveError(args);
                    }
                }
                catch (Exception)
                {
                    //close socket
                    if (socket != null)
                    {
                        socket.Close();
                        socket = null;
                    }
                    //and rethrow
                    throw;
                }
                Thread.Sleep(1);
            }//while (!shouldStop)
            if (socket != null)
            {
                socket.Close();
                socket = null;
            }
        }
Exemple #2
0
 protected virtual void OnDataReceive(UdpDataReceiveEventArgs e)
 {
     DataReceive?.Invoke(this, e);
 }