Abstract base class for a UDP datagram. More...

#include <DatagramPacket.h>

Inheritance diagram for nidas::util::DatagramPacketBase:

Public Member Functions
	DatagramPacketBase (int l)
	Create a DatagramPacketBase for receiving. More...

	DatagramPacketBase (int l, const Inet4Address &add, int port)
	Create a DatagramPacketBase for sending. More...

	DatagramPacketBase (int l, const SocketAddress &add)

	DatagramPacketBase (const DatagramPacketBase &x)
	Copy constructor. More...

DatagramPacketBase &	operator= (const DatagramPacketBase &rhs)
	Assignment operator. More...

virtual	~DatagramPacketBase ()
	Virtual destructor. More...

SocketAddress &	getSocketAddress () const

void	setSocketAddress (const SocketAddress &val)

struct sockaddr *	getSockAddrPtr ()

struct sockaddr *	getConstSockAddrPtr () const

int	getSockAddrLen () const

virtual void *	getDataVoidPtr ()=0
	Get the pointer to the data portion of the packet. More...

virtual const void *	getConstDataVoidPtr () const =0

virtual void	setLength (int val)
	Set the value for the current number of bytes in data. More...

virtual int	getLength () const
	Get the value for the current number of bytes in data. More...

void	setMaxLength (int val)
	Set the allocated length in bytes of the data. More...

int	getMaxLength () const
	Return the allocated length in bytes of the data. More...

Protected Attributes
int	maxlength
	allocated length in bytes of contents. More...

int	length
	length of datagram that was read or will be sent. More...

SocketAddress *	addr
	The destination address for a send, or the remote senders address after a receive. More...

Detailed Description

Abstract base class for a UDP datagram.

Patterned after java.net.DatagramPacket.

Constructor & Destructor Documentation

nidas::util::DatagramPacketBase::DatagramPacketBase ( int l )

inline

Create a DatagramPacketBase for receiving.

Parameters

buf	allocated space for contents. Pointer is owned by caller, not by the DatagramPacketBase - the DatagramPacketBase destructor does not delete it in its destructor.
length	length of allocated space.

nidas::util::DatagramPacketBase::DatagramPacketBase	(	int	l,
		const Inet4Address &	add,
		int	port
	)

inline

Create a DatagramPacketBase for sending.

Parameters

buf	allocated space for contents. Pointer is owned by caller, not by the DatagramPacketBase - the DatagramPacketBase destructor does not delete it in its destructor.
length	length of allocated space. Inet4Address to send packet to. port number to send packet to.

nidas::util::DatagramPacketBase::DatagramPacketBase	(	int	l,
		const SocketAddress &	add
	)

inline

nidas::util::DatagramPacketBase::DatagramPacketBase ( const DatagramPacketBase & x )

inline

Copy constructor.

virtual nidas::util::DatagramPacketBase::~DatagramPacketBase ( )

inlinevirtual

Virtual destructor.

References addr.

Member Function Documentation

virtual const void* nidas::util::DatagramPacketBase::getConstDataVoidPtr ( ) const

pure virtual

Implemented in nidas::util::DatagramPacketT< DataT >, nidas::util::DatagramPacketT< McSocketData >, and nidas::util::DatagramPacketT< char >.

struct sockaddr* nidas::util::DatagramPacketBase::getConstSockAddrPtr ( ) const

inline

References addr, and nidas::util::SocketAddress::getConstSockAddrPtr().

virtual void* nidas::util::DatagramPacketBase::getDataVoidPtr ( )

pure virtual

Get the pointer to the data portion of the packet.

Implemented in nidas::util::DatagramPacketT< DataT >, nidas::util::DatagramPacketT< McSocketData >, and nidas::util::DatagramPacketT< char >.

virtual int nidas::util::DatagramPacketBase::getLength ( ) const

inlinevirtual

Get the value for the current number of bytes in data.

Either the number of bytes read in a received packet, or the number of bytes to send().

References length.

Referenced by PacketReader::checkPacket(), PacketReader::logBadPacket(), PacketReader::loop(), nidas::core::DerivedDataReader::run(), WriterThread::run(), nidas::util::McSocketListener::run(), and nidas::util::McSocketMulticaster< SocketTT >::run().

int nidas::util::DatagramPacketBase::getMaxLength ( ) const

inline

Return the allocated length in bytes of the data.

References maxlength.

Referenced by PacketReader::loop().

int nidas::util::DatagramPacketBase::getSockAddrLen ( ) const

inline

References addr, and nidas::util::SocketAddress::getSockAddrLen().

struct sockaddr* nidas::util::DatagramPacketBase::getSockAddrPtr ( )

inline

References addr, and nidas::util::SocketAddress::getSockAddrPtr().

SocketAddress& nidas::util::DatagramPacketBase::getSocketAddress ( ) const

inline

References addr.

Referenced by PacketReader::logBadPacket(), PacketReader::loop(), nidas::util::McSocketListener::run(), and nidas::util::McSocketMulticaster< SocketTT >::run().

DatagramPacketBase& nidas::util::DatagramPacketBase::operator= ( const DatagramPacketBase & rhs )

inline

Assignment operator.

References addr, nidas::util::SocketAddress::clone(), length, and maxlength.

virtual void nidas::util::DatagramPacketBase::setLength ( int val )

inlinevirtual

Set the value for the current number of bytes in data.

/param val Number of bytes, must be <= max length.

References length.

Referenced by PacketReader::checkPacket().

void nidas::util::DatagramPacketBase::setMaxLength ( int val )

inline

Set the allocated length in bytes of the data.

/param val Number of bytes allocated in data.

References maxlength.

void nidas::util::DatagramPacketBase::setSocketAddress ( const SocketAddress & val )

inline

References addr, and nidas::util::SocketAddress::clone().

Referenced by nidas::util::McSocketMulticaster< SocketTT >::run().

Member Data Documentation

SocketAddress* nidas::util::DatagramPacketBase::addr

protected

The destination address for a send, or the remote senders address after a receive.

Referenced by getConstSockAddrPtr(), getSockAddrLen(), getSockAddrPtr(), getSocketAddress(), operator=(), setSocketAddress(), and ~DatagramPacketBase().

int nidas::util::DatagramPacketBase::length

protected

length of datagram that was read or will be sent.

Must be <= maxlength.

Referenced by getLength(), operator=(), and setLength().

int nidas::util::DatagramPacketBase::maxlength

protected

allocated length in bytes of contents.

Referenced by getMaxLength(), operator=(), and setMaxLength().

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

nidas/util/DatagramPacket.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation