C# Class Snarf.Udp.UdpListener

A basic listener that listens for incoming UDP messages on the specified port and passes the event on to application code whenever a message is received.

Inheritance: IDisposable

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Protected Properties

Property	Type	Description
localMessagesOnly	bool
port	int
udp	System.Net.Sockets.UdpClient

Public Methods

Method	Description
Dispose ( ) : void
GetLocalSubnetMask ( IPAddress ipaddress ) : IPAddress
GetNetworkAddress ( IPAddress address, IPAddress subnetMask ) : IPAddress
IsInSameSubnet ( IPAddress localAddress, IPAddress otherAddress ) : bool
Start ( ) : void
Start ( AsyncCallback callback ) : void	Starts listening for messages on the specified port
Stop ( ) : void	Stops listening for messages and frees the port
UdpListener ( int port, bool localMessagesOnly ) : System	Creates a new UdpListener

Protected Methods

Method	Description
Dispose ( bool disposing ) : void

Private Methods

Method	Description
ProcessPacket ( IAsyncResult ar ) : void	When a message is received by the listener, the raw data is read from the packet and the PacketReceived event is fired.

Method Details

Dispose() public method

public Dispose ( ) : void
return	void

Dispose() protected method

protected Dispose ( bool disposing ) : void
disposing	bool
return	void

GetLocalSubnetMask() public static method

public static GetLocalSubnetMask ( IPAddress ipaddress ) : IPAddress
ipaddress	System.Net.IPAddress
return	System.Net.IPAddress

GetNetworkAddress() public static method

public static GetNetworkAddress ( IPAddress address, IPAddress subnetMask ) : IPAddress
address	System.Net.IPAddress
subnetMask	System.Net.IPAddress
return	System.Net.IPAddress

IsInSameSubnet() public static method

public static IsInSameSubnet ( IPAddress localAddress, IPAddress otherAddress ) : bool
localAddress	System.Net.IPAddress
otherAddress	System.Net.IPAddress
return	bool

Start() public method

public Start ( ) : void
return	void

Start() public method

Starts listening for messages on the specified port

public Start ( AsyncCallback callback ) : void
callback	AsyncCallback
return	void

Stop() public method

Stops listening for messages and frees the port

public Stop ( ) : void
return	void

UdpListener() public method

Creates a new UdpListener

public UdpListener ( int port, bool localMessagesOnly ) : System
port	int	The port to listen for messages on
localMessagesOnly	bool	true to only listen for messages from the local machine;false to listen for messages from any source
return	System

Property Details

localMessagesOnly protected property

Indicates if messages from remote machines should be allowed or not

protected bool localMessagesOnly
return	bool

port protected property

The port to listen for messages on

protected int port
return	int

udp protected property

The underlying UdpClient

protected UdpClient,System.Net.Sockets udp
return	System.Net.Sockets.UdpClient