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_oe property

Indicates if messages from remote machines should be allowed or not

protected bool localMessagesOnly
return	bool

port protected_oe property

The port to listen for messages on

protected int port
return	int

udp protected_oe property

The underlying UdpClient

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