DatagramPacket Class Reference

Inherits ObjectImpl.

List of all members.

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Detailed Description

This class represents a datagram packet.

Datagram packets are used to implement a connectionless packet delivery service. Each message is routed from one machine to another based solely on information contained within that packet. Multiple packets sent from one machine to another might be routed differently, and might arrive in any order.

Public Member Functions
	DatagramPacket (void *buf, int length)
	Constructs a DatagramPacket for receiving packets of length length.
	DatagramPacket (void *buf, int length, InetAddressPtr address, int port)
	Constructs a datagram packet for sending packets of length length to the specified port number on the specified host.
	DatagramPacket (void *buf, int offset, int length)
	Constructs a DatagramPacket for receiving packets of length length, specifying an offset into the buffer.
	DatagramPacket (void *buf, int offset, int length, InetAddressPtr address, int port)
	Constructs a datagram packet for sending packets of length length with offset offset to the specified port number on the specified host.
	~DatagramPacket ()
InetAddressPtr	getAddress () const
	Returns the IP address of the machine to which this datagram is being sent or from which the datagram was received.
void *	getData () const
	Returns the data received or the data to be sent.
int	getLength () const
	Returns the length of the data to be sent or the length of the data received.
int	getOffset () const
	Returns the offset of the data to be sent or the offset of the data received.
int	getPort () const
	Returns the port number on the remote host to which this datagram is being sent or from which the datagram was received.
void	setAddress (InetAddressPtr address1)
void	setData (void *buf1)
	Set the data buffer for this packet.
void	setData (void *buf1, int offset1, int length1)
	Set the data buffer for this packet.
void	setLength (int length1)
	Set the length for this packet.
void	setPort (int port1)
Protected Attributes
void *	buf
	the data for this packet.
int	offset
	The offset of the data for this packet.
int	length
	The length of the data for this packet.
InetAddressPtr	address
	The IP address for this packet.
int	port
	The UDP port number of the remote host.

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Constructor & Destructor Documentation

DatagramPacket (  void *  buf, int  length )

Constructs a DatagramPacket for receiving packets of length length.

DatagramPacket (  void *  buf, int  length, InetAddressPtr  address, int  port )

Constructs a datagram packet for sending packets of length length to the specified port number on the specified host.

DatagramPacket (  void *  buf, int  offset, int  length )

Constructs a DatagramPacket for receiving packets of length length, specifying an offset into the buffer.

DatagramPacket (  void *  buf, int  offset, int  length, InetAddressPtr  address, int  port )

Constructs a datagram packet for sending packets of length length with offset offset to the specified port number on the specified host.

~DatagramPacket (   )

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Member Function Documentation

InetAddressPtr getAddress (   )  const [inline]

Returns the IP address of the machine to which this datagram is being sent or from which the datagram was received.

void* getData (   )  const [inline]

Returns the data received or the data to be sent.

int getLength (   )  const [inline]

Returns the length of the data to be sent or the length of the data received.

int getOffset (   )  const [inline]

Returns the offset of the data to be sent or the offset of the data received.

int getPort (   )  const [inline]

Returns the port number on the remote host to which this datagram is being sent or from which the datagram was received.

void setAddress (  InetAddressPtr  address1  )  [inline]

void setData (  void *  buf1, int  offset1, int  length1 )  [inline]

Set the data buffer for this packet.

void setData (  void *  buf1  )  [inline]

Set the data buffer for this packet.

void setLength (  int  length1  )  [inline]

Set the length for this packet.

void setPort (  int  port1  )  [inline]

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Member Data Documentation

InetAddressPtr address [protected]

The IP address for this packet.

void* buf [protected]

the data for this packet.

int length [protected]

The length of the data for this packet.

int offset [protected]

The offset of the data for this packet.

int port [protected]

The UDP port number of the remote host.

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The documentation for this class was generated from the following file:

• datagrampacket.h