NetSamples.Common.Net
Class UdpListener

A UDP Listener

mcastaddress

protected System.Net.IPAddress mcastaddress

receiveDelegate

private NetSamples.Common.Net.UdpListener.ReceiveDelegate receiveDelegate

sendDelegate

private NetSamples.Common.Net.UdpListener.SendDelegate sendDelegate

sock

protected System.Net.Sockets.Socket sock

stopping

protected bool stopping

UdpListener

public UdpListener()

Constructor.

LocalEndPoint

public System.Net.IPEndPoint LocalEndPoint

Returns the local endpoint for the server.

MulticastAddress

public System.Net.IPAddress MulticastAddress

Returns the current multicast group address or sets a new one.

The UDPListener only supports membership of a singe multicast group at any point in time.

BeginReceive

public System.IAsyncResult BeginReceive(System.AsyncCallback callback,
                                        object state)

Starts an asynchronous receive operation

BeginReceive

protected void BeginReceive()

Starts an asynchronous receive operation (private)

BeginSend

public System.IAsyncResult BeginSend(NetSamples.Common.Net.Datagram datagram,
                                     System.AsyncCallback callback,
                                     object state)

Starts an asynchronous send operation

Bind

public void Bind(System.Net.IPEndPoint endpoint)

Bind to the specified endpoint.

BindReuse

public void BindReuse(System.Net.IPEndPoint endpoint)

Bind to the specified endpoint.

DropMulticastGroup

public void DropMulticastGroup(System.Net.IPAddress multicastgroup)

Removes the listener from the specified multicast group.

EndReceive

public NetSamples.Common.Net.Datagram EndReceive(System.IAsyncResult ar)

Ends an asynchronous receive operation.

EndSend

public void EndSend(System.IAsyncResult ar)

Ends an asynchronouse send operation

Finalize

protected void Finalize()

Finalizer

JoinMulticastGroup

public void JoinMulticastGroup(System.Net.IPAddress multicastgroup)

Adds the listener to the specified multicast group.

OnReceive

protected void OnReceive(System.IAsyncResult ar)

Internal receive handler: this handles the event from the MessageReader instance in the server and forwards it on to any objects attached to the MessageReceived event.

Receive

public NetSamples.Common.Net.Datagram Receive()

Attempts to receive a datagram. This call blocks until the receive completes.

Send

public void Send(NetSamples.Common.Net.Datagram datagram)

Sends the specified message to the specified endpoint. For connected TCP sockets, the endpoint may be specified as null. Connected UDP sockets are not supported at this time.

SetMulticastTtl

public void SetMulticastTtl(int ttl)

Sets the Multicast Time to Live for the socket.

Start

public void Start()

Starts the server. When started, the UDPListener issues a BeginReceive to start receiving packets. Whenever a packet is received, the Received event is fired.

Stop

public void Stop()

Stops the server.

Received

public NetSamples.Common.Net.DatagramEventHandler Received

The MessageReceived event is raised when a message is received by the server.