public static void SendTo(this UDPClient UDPClient, String UDPPacketString, IIPAddress RemoteIPAddress, IPPort IPPort, Encoding Encoding = null, SocketFlags SocketFlags = SocketFlags.None)
{
if (Encoding == null)
Encoding = Encoding.UTF8;
var UDPPacketData = Encoding.GetBytes(UDPPacketString);
var RemoteIPEndPoint = new IPEndPoint(new IPAddress(RemoteIPAddress.GetBytes()), IPPort.ToInt32());
UDPClient.SendTo(UDPPacketData, RemoteIPEndPoint, SocketFlags);
}
/// <summary>
/// Initialize the TCP server using the given parameters.
/// </summary>
/// <param name="IIPAddress">The listening IP address(es)</param>
/// <param name="Port">The listening port</param>
/// <param name="ServiceBanner">Service banner.</param>
/// <param name="ServerThreadName">The optional name of the TCP server thread.</param>
/// <param name="ServerThreadPriority">The optional priority of the TCP server thread.</param>
/// <param name="ServerThreadIsBackground">Whether the TCP server thread is a background thread or not.</param>
/// <param name="ConnectionIdBuilder">An optional delegate to build a connection identification based on IP socket information.</param>
/// <param name="ConnectionThreadsNameBuilder">An optional delegate to set the name of the TCP connection threads.</param>
/// <param name="ConnectionThreadsPriorityBuilder">An optional delegate to set the priority of the TCP connection threads.</param>
/// <param name="ConnectionThreadsAreBackground">Whether the TCP connection threads are background threads or not (default: yes).</param>
/// <param name="ConnectionTimeout">The TCP client timeout for all incoming client connections in seconds (default: 30 sec).</param>
/// <param name="MaxClientConnections">The maximum number of concurrent TCP client connections (default: 4096).</param>
/// <param name="Autostart">Start the TCP server thread immediately (default: no).</param>
public TCPServer(IIPAddress IIPAddress,
IPPort Port,
String ServiceBanner = __DefaultServiceBanner,
String ServerThreadName = null,
ThreadPriority ServerThreadPriority = ThreadPriority.AboveNormal,
Boolean ServerThreadIsBackground = true,
ConnectionIdBuilder ConnectionIdBuilder = null,
ConnectionThreadsNameBuilder ConnectionThreadsNameBuilder = null,
ConnectionThreadsPriorityBuilder ConnectionThreadsPriorityBuilder = null,
Boolean ConnectionThreadsAreBackground = true,
TimeSpan?ConnectionTimeout = null,
UInt32 MaxClientConnections = __DefaultMaxClientConnections,
Boolean Autostart = false)
{
#region TCP Socket
this._IPAddress = IIPAddress;
this._Port = Port;
this._IPSocket = new IPSocket(_IPAddress, _Port);
this._TCPListener = new TcpListener(new System.Net.IPAddress(_IPAddress.GetBytes()), _Port.ToInt32());
#endregion
#region TCP Server
this._ServiceBanner = (ServiceBanner.IsNotNullOrEmpty())
? ServiceBanner
: __DefaultServiceBanner;
this.ServerThreadName = (ServerThreadName != null)
? ServerThreadName
: __DefaultServerThreadName + this.IPSocket.ToString();
this.ServerThreadPriority = ServerThreadPriority;
this.ServerThreadIsBackground = ServerThreadIsBackground;
#endregion
#region TCP Connections
this._TCPConnections = new ConcurrentDictionary <IPSocket, TCPConnection>();
this.ConnectionIdBuilder = (ConnectionIdBuilder != null)
? ConnectionIdBuilder
: (Sender, Timestamp, LocalSocket, RemoteIPSocket) => "TCP:" + RemoteIPSocket.IPAddress + ":" + RemoteIPSocket.Port;
this.ConnectionThreadsNameBuilder = (ConnectionThreadsNameBuilder != null)
? ConnectionThreadsNameBuilder
: (Sender, Timestamp, LocalSocket, RemoteIPSocket) => "TCP thread " + RemoteIPSocket.IPAddress + ":" + RemoteIPSocket.Port;
this.ConnectionThreadsPriorityBuilder = (ConnectionThreadsPriorityBuilder != null)
? ConnectionThreadsPriorityBuilder
: (Sender, Timestamp, LocalSocket, RemoteIPSocket) => ThreadPriority.AboveNormal;
this.ConnectionThreadsAreBackground = ConnectionThreadsAreBackground;
this._ConnectionTimeout = ConnectionTimeout.HasValue
? ConnectionTimeout.Value
: TimeSpan.FromSeconds(30);
this._MaxClientConnections = MaxClientConnections;
#endregion
#region TCP Listener Thread
this.CancellationTokenSource = new CancellationTokenSource();
this.CancellationToken = CancellationTokenSource.Token;
_ListenerThread = new Thread(() => {
#if __MonoCS__
// Code for Mono C# compiler
#else
Thread.CurrentThread.Name = this.ServerThreadName;
Thread.CurrentThread.Priority = this.ServerThreadPriority;
Thread.CurrentThread.IsBackground = this.ServerThreadIsBackground;
#endif
#region SetSocketOptions
// IOControlCode.*
// fd.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, tcpKeepalive);
// bytes.PutInteger(endian, tcpKeepalive, 0);
// bytes.PutInteger(endian, tcpKeepaliveIdle, 4);
// bytes.PutInteger(endian, tcpKeepaliveIntvl, 8);
// fd.IOControl(IOControlCode.KeepAliveValues, (byte[])bytes, null);
#endregion
try
{
_IsRunning = true;
while (!_StopRequested)
{
// Wait for a new/pending client connection
while (!_StopRequested && !_TCPListener.Pending())
{
Thread.Sleep(5);
}
// Break when a server stop was requested
if (_StopRequested)
{
break;
}
// Processing the pending client connection within its own task
var NewTCPClient = _TCPListener.AcceptTcpClient();
// var NewTCPConnection = _TCPListener.AcceptTcpClientAsync().
// ContinueWith(a => new TCPConnection(this, a.Result));
// // ConfigureAwait(false);
// Store the new connection
//_SocketConnections.AddOrUpdate(_TCPConnection.Value.RemoteSocket,
// _TCPConnection.Value,
// (RemoteEndPoint, TCPConnection) => TCPConnection);
Task.Factory.StartNew(Tuple => {
try
{
var _Tuple = Tuple as Tuple <TCPServer, TcpClient>;
var NewTCPConnection = new ThreadLocal <TCPConnection>(
() => new TCPConnection(_Tuple.Item1, _Tuple.Item2)
);
#region Copy ExceptionOccured event handlers
//foreach (var ExceptionOccuredHandler in MyEventStorage)
// _TCPConnection.Value.OnExceptionOccured += ExceptionOccuredHandler;
#endregion
#region OnNewConnection
// If this event closes the TCP connection the OnNotification event will never be fired!
// Therefore you can use this event for filtering connection initiation requests.
OnNewConnection?.Invoke(NewTCPConnection.Value.TCPServer,
NewTCPConnection.Value.ServerTimestamp,
NewTCPConnection.Value.RemoteSocket,
NewTCPConnection.Value.ConnectionId,
NewTCPConnection.Value);
if (!NewTCPConnection.Value.IsClosed)
{
OnNotification?.Invoke(NewTCPConnection.Value);
}
#endregion
}
catch (Exception e)
{
while (e.InnerException != null)
{
e = e.InnerException;
}
OnExceptionOccured?.Invoke(this, DateTime.Now, e);
Console.WriteLine(DateTime.Now + " " + e.Message + Environment.NewLine + e.StackTrace);
}
}, new Tuple <TCPServer, TcpClient>(this, NewTCPClient));
}
#region Shutdown
// Request all client connections to finish!
foreach (var _SocketConnection in _TCPConnections)
{
_SocketConnection.Value.StopRequested = true;
}
// After stopping the TCPListener wait for
// all client connections to finish!
while (_TCPConnections.Count > 0)
{
Thread.Sleep(5);
}
#endregion
}
#region Exception handling
catch (Exception Exception)
{
var OnExceptionLocal = OnExceptionOccured;
if (OnExceptionLocal != null)
{
OnExceptionLocal(this, DateTime.Now, Exception);
}
}
#endregion
_IsRunning = false;
});
#endregion
if (Autostart)
{
Start();
}
}
/// <summary>
/// Create a new UDP receiver listening on the given IP address and port.
/// </summary>
/// <param name="IPAddress">The IP address to listen.</param>
/// <param name="Port">The port to listen.</param>
/// <param name="ServiceBanner">Service banner.</param>
/// <param name="Mapper">A delegate to transform the incoming UDP packets into custom data structures.</param>
/// <param name="ReceiverThreadName">The optional name of the UDP receiver thread.</param>
/// <param name="ReceiverThreadPriority">The optional priority of the UDP receiver thread.</param>
/// <param name="ReceiverThreadIsBackground">Whether the UDP receiver thread is a background thread or not.</param>
/// <param name="PacketThreadsNameCreator">An optional delegate to set the name of the UDP packet threads.</param>
/// <param name="PacketThreadsPriority">The optional priority of the UDP packet threads.</param>
/// <param name="PacketThreadsAreBackground">Whether the UDP packet threads are background threads or not.</param>
/// <param name="Autostart">Start the UDP receiver thread immediately.</param>
public UDPReceiver(IIPAddress IPAddress,
IPPort Port,
String ServiceBanner = DefaultServiceBanner,
MapperDelegate Mapper = null,
MapReduceDelegate MapReduce = null,
String ReceiverThreadName = "UDP receiver thread",
ThreadPriority ReceiverThreadPriority = ThreadPriority.AboveNormal,
Boolean ReceiverThreadIsBackground = true,
Func <UDPPacket <TData>, String> PacketThreadsNameCreator = null,
ThreadPriority PacketThreadsPriority = ThreadPriority.AboveNormal,
Boolean PacketThreadsAreBackground = true,
Boolean Autostart = false)
{
if (Mapper == null && MapReduce == null)
{
throw new ArgumentNullException("The mapper and mapreduce delegate can not be both null!");
}
this._IPAddress = IPAddress;
this._IsMulticast = IPAddress.IsMulticast;
this._Port = Port;
this._IPSocket = new IPSocket(_IPAddress, _Port);
this.ServiceBanner = ServiceBanner;
this.Mapper = Mapper;
this.MapReduce = MapReduce;
this._ReceiverThreadName = ReceiverThreadName;
this._ReceiverThreadPriority = ReceiverThreadPriority;
this.PacketThreadsNameCreator = (PacketThreadsNameCreator == null)
? UDPpacket => "UDP packet from " + UDPpacket.RemoteSocket.IPAddress + ":" + UDPpacket.RemoteSocket.Port
: PacketThreadsNameCreator;
this._PacketThreadsPriority = PacketThreadsPriority;
this._PacketThreadsAreBackground = PacketThreadsAreBackground;
var LocalIPEndPoint = new IPEndPoint(new System.Net.IPAddress(_IPAddress.GetBytes()), _Port.ToInt32());
this.LocalSocket = new IPSocket(LocalIPEndPoint);
this.LocalDotNetSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
this.LocalDotNetSocket.Bind(LocalIPEndPoint);
this.BufferSize = 65536;
this.ReceiveTimeout = 5000;
if (IsMulticast)
{
LocalDotNetSocket.SetSocketOption(SocketOptionLevel.IP,
SocketOptionName.AddMembership,
new MulticastOption(System.Net.IPAddress.Parse(_IPAddress.ToString()),
System.Net.IPAddress.Any));
}
this.CancellationTokenSource = new CancellationTokenSource();
this.CancellationToken = CancellationTokenSource.Token;
if (Autostart)
{
Start();
}
}
public static void SendTo(this UDPClient UDPClient, Byte[] UDPPacketData, IIPAddress RemoteIPAddress, IPPort IPPort, SocketFlags SocketFlags = SocketFlags.None)
{
var RemoteIPEndPoint = new IPEndPoint(new IPAddress(RemoteIPAddress.GetBytes()), IPPort.ToInt32());
UDPClient.SendTo(UDPPacketData, RemoteIPEndPoint, SocketFlags);
}
/// <summary>
/// The UDPMulticastSenderArrow sends the incoming message
/// to the given IP multicast group.
/// </summary>
/// <param name="MulticastAddress">The multicast address to join.</param>
/// <param name="IPPort">The outgoing IP port to use.</param>
/// <param name="HopCount">The IPv6 hop-count or IPv4 time-to-live field of the outgoing IP multicast packets.</param>
public UDPMulticastSenderArrow(String MulticastAddress, IPPort IPPort, Byte HopCount = 255)
{
this.MulticastSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
this.IPEndPoint = new IPEndPoint(IPAddress.Parse(MulticastAddress), IPPort.ToInt32());
this.HopCount = HopCount;
}