The DtUdpMsgSocket class provides an address family independent UDP socket that handles RTI messages. More...

Inheritance diagram for DtUdpMsgSocket:

Collaboration diagram for DtUdpMsgSocket:

Public Member Functions
	DtUdpMsgSocket (DtBoost::shared_ptr< DtMsgHeaderReader > hdrReader, size_t maxPacketSize=DtDefaultMaxPacketSize)
	Constructor.
virtual	~DtUdpMsgSocket ()
	Destructor.
virtual void	openSocket (const DtInetEndpoint &dest, DtU32 flags=DtDefaultSockOpts, DtU16 localPort=0, DtInetDevice *hostIf=NULL)
	Opens the socket if not already open.
virtual int	sendMessage (caddr_t msg, size_t msgSize, bool deleteAfterSend, const DtInetAddr &destAddr=DtInetAddr::inaddrAny())
	Sends a message.
virtual bool	flush ()
	Attempts to send any queued messages and bundled messages.
virtual int	recvMessage (caddr_t *buffptr)
	Gets the next message from the incoming data.
virtual int	recvMessageWithSrc (caddr_t *buffptr, DtInetEndpoint &src)
	Gets the next message from the incoming data.
virtual void	enableBundling (size_t maxBundleSize)
	Enables message bundling and sets the maximum bundle size.
virtual void	disableBundling ()
	Disables message bundling.
virtual void	enableCompression (DtU8 compressionLevel)
	Enables message compression and sets the compression level.
virtual void	disableCompression ()
	Disables message compression.
virtual bool	joinMulticastGroup (const DtInetAddr &grpAddr, DtInetDevice *device=NULL)
	Join / drop subscription to multicast group.
virtual bool	joinMulticastGroup (const DtInetEndpoint &grpEndpoint, DtInetDevice *device=NULL)
virtual bool	dropMulticastGroup (const DtInetAddr &grpAddr, DtInetDevice *device=NULL)
virtual bool	dropMulticastGroup (const DtInetEndpoint &grpEndpoint, DtInetDevice *device=NULL)
virtual bool	setMcastTtlOption (DtU32 ttl)
	Change the default time-to-live on outbound multicast packets sent from this socket.
virtual void	setRetryOnSend (unsigned int numRetries, double waitPeriod)
	Enables/disables send retries on failure.
virtual DtU32	maxMsgSize () const
	Gets the maximum message size.
virtual bool	isOpen () const
	Returns true if the socket is open.
DtInetUdpSocket *	inetUdpSocket ()
	Returns a pointer to the DtInetUdpSocket.
void	setFilterPort (int port)
	Sets the filter port.
Public Member Functions inherited from DtMsgSocket
	DtMsgSocket (DtBoost::shared_ptr< DtMsgHeaderReader > hdrReader, size_t recvBuffSize)
	Constructor.
	DtMsgSocket (std::auto_ptr< DtInetSocket > socket, DtBoost::shared_ptr< DtMsgHeaderReader > hdrReader, size_t recvBuffSize)
	Constructor which takes a pre-created DtInetSocket pointer.
virtual	~DtMsgSocket ()
	Destructor.
virtual bool	closeSocket ()
	Close a socket. Returns true on successful close or false on failure.
virtual DtInetSockState	state () const
	Returns the state of the socket.
void	printStateToStream (MAKRti::DtOutputStream &stream) const
	prints state to stream
const DtString &	lastError () const
	Returns a description of the last error.
const DtInetEndpoint &	localEndpoint () const
	Gets the local endpoint for the socket.
void	setSendBufferSize (DtU32 size)
	Sets the socket send buffer size.
void	setRecvBufferSize (DtU32 size)
	Sets the socket receive buffer size.
DtU32	maxSendMsgSize () const
	Gets the maximum socket send size.
int	descriptor () const
	Get's the socket file descriptor.
DtInetSocket *	inetSocket ()
	Returns a pointer to the DtInetSocket.

Protected Member Functions
virtual int	sendPacket (caddr_t msg, size_t msgSize, const DtInetAddr &destAddr=DtInetAddr::inaddrAny())
	Sends a single packet.
virtual int	retrySendTo (caddr_t msg, size_t msgSize, const DtInetAddr &destAddr=DtInetAddr::inaddrAny())
	Retries sending a message which failed to send.
virtual int	recv (caddr_t buffptr, DtInetEndpoint ep)
	Gets the next message from the incoming data.
Protected Member Functions inherited from DtMsgSocket
void	expandRecvBuffer (size_t sizeNeeded)
	Expands the receive buffer to accommodate the given size message.

Protected Attributes
DtInetEndpoint	myEndpoint
	The current endpoint to send to.
std::map< DtInetAddr, DtMsgBundler * >	myMsgBundlers
	Message bundlers for outgoing messages for each destination address.
DtMsgBundler	myDefaultMsgBundler
	Message bundler for the default destination.
bool	myBundlingEnabled
	Whether message bundling is enabled.
DtMsgCompressor	myMsgCompressor
	Message compressor and uncompressor.
bool	myCompressionEnabled
	Whether message compression is enabled.
DtInetEndpoint	myLastSourceEndpoint
	Source endpoint of last data received.
size_t	myMaxPacketSize
	The maximum packet size.
unsigned int	myMaxSendRetries
	The maximum number of times to try resending.
double	mySendRetryPeriod
	The wait period between send retries.
int	myFilterPort
	All messages sent from this port on this machine will be filtered.
Protected Attributes inherited from DtMsgSocket
std::auto_ptr < MAKRti::DtInetSocket >	mySocket
	The socket.
DtInetBuffer	myRecvBuffer
	The buffer to store received data in.
DtString	myLastError
	Description of last error.
DtBoost::shared_ptr < DtMsgHeaderReader >	myHeaderReader
	Reads data from message header.

Detailed Description

The DtUdpMsgSocket class provides an address family independent UDP socket that handles RTI messages.

Constructor & Destructor Documentation

DtUdpMsgSocket::DtUdpMsgSocket	(	DtBoost::shared_ptr< DtMsgHeaderReader >	hdrReader,
		size_t	maxPacketSize = `DtDefaultMaxPacketSize`
	)

Constructor.

Requires a header reader to extract information from message headers. Does NOT open the socket. A call to openSocket() is required.

DtUdpMsgSocket::~DtUdpMsgSocket ( )

virtual

Destructor.

Member Function Documentation

void DtUdpMsgSocket::disableBundling ( )

virtual

Disables message bundling.

Implements DtMsgSocket.

Reimplemented in DtSmSocket__rti__.

References myBundlingEnabled.

void DtUdpMsgSocket::disableCompression ( )

virtual

Disables message compression.

Implements DtMsgSocket.

Reimplemented in DtSmSocket__rti__.

References myCompressionEnabled.

bool DtUdpMsgSocket::dropMulticastGroup	(	const DtInetAddr &	grpAddr,
		DtInetDevice *	device = `NULL`
	)

virtual

Reimplemented in DtSmSocket__rti__.

References inetUdpSocket().

Referenced by DtExtendedRtiMsgForwarder::dropMulticastGroup().

bool DtUdpMsgSocket::dropMulticastGroup	(	const DtInetEndpoint &	grpEndpoint,
		DtInetDevice *	device = `NULL`
	)

virtual

Reimplemented in DtSmSocket__rti__.

References inetUdpSocket().

void DtUdpMsgSocket::enableBundling ( size_t maxBundleSize )

virtual

Enables message bundling and sets the maximum bundle size.

Implements DtMsgSocket.

Reimplemented in DtSmSocket__rti__.

References myBundlingEnabled, myDefaultMsgBundler, myMsgBundlers, and DtMsgBundler::setMaxSendBundleSize().

Referenced by DtConnectionMgr::createBestEffortConn(), DtExtendedRtiMsgForwarder::init(), and DtInOutForwarderPort::initializeConnections().

void DtUdpMsgSocket::enableCompression ( DtU8 compressionLevel )

virtual

Enables message compression and sets the compression level.

Implements DtMsgSocket.

Reimplemented in DtSmSocket__rti__.

References myCompressionEnabled, myMsgCompressor, and DtMsgCompressor::setCompressionLevel().

Referenced by DtConnectionMgr::createBestEffortConn(), DtExtendedRtiMsgForwarder::init(), and DtInOutForwarderPort::initializeConnections().

bool DtUdpMsgSocket::flush ( )

virtual

Attempts to send any queued messages and bundled messages.

Returns true if all queued and bundled messages were sent.

Implements DtMsgSocket.

Reimplemented in DtSmSocket__rti__, and DtRtiSmSocket.

References DtMsgBundler::getBundle(), myBundlingEnabled, myDefaultMsgBundler, myMsgBundlers, DtMsgSocket::mySocket, and sendPacket().

Referenced by DtExtendedRtiMsgForwarder::flush(), and DtMulitcastDiscoveryMgr::requestAddress().

DtInetUdpSocket * DtUdpMsgSocket::inetUdpSocket ( )

inline

Returns a pointer to the DtInetUdpSocket.

Referenced by dropMulticastGroup(), joinMulticastGroup(), DtRtiAssistantPeer::netRead(), and setMcastTtlOption().

bool DtUdpMsgSocket::isOpen ( ) const

virtual

Returns true if the socket is open.

Reimplemented in DtSmSocket__rti__.

References DtMsgSocket::mySocket.

Referenced by DtRtiAssistantPeer::addSocketsForInterfaces(), DtConnectionMgr::createBestEffortConn(), DtExtendedRtiMsgForwarder::flush(), DtMulitcastDiscoveryMgr::init(), DtInOutForwarderPort::initializeConnections(), and DtRtiAssistantPeer::sendMsg().

bool DtUdpMsgSocket::joinMulticastGroup	(	const DtInetAddr &	grpAddr,
		DtInetDevice *	device = `NULL`
	)

virtual

Join / drop subscription to multicast group.

Socket will join group identified by the multicast address in grpAddr or grpEndpoint. If an object is passed in the port value of the endpoint will be ignored and the socket will join from the same port the socket's local endpoint uses. If no interface is specified in the join it will join on the host's default multicast interface.

Reimplemented in DtSmSocket__rti__.

References inetUdpSocket().

Referenced by DtExtendedRtiMsgForwarder::listenToMulticastGroup().

bool DtUdpMsgSocket::joinMulticastGroup	(	const DtInetEndpoint &	grpEndpoint,
		DtInetDevice *	device = `NULL`
	)

virtual

Reimplemented in DtSmSocket__rti__.

References inetUdpSocket().

DtU32 DtUdpMsgSocket::maxMsgSize ( ) const

virtual

Gets the maximum message size.

References DtMsgSocket::mySocket.

void DtUdpMsgSocket::openSocket	(	const DtInetEndpoint &	dest,
		DtU32	flags = `DtDefaultSockOpts`,
		DtU16	localPort = `0`,
		DtInetDevice *	hostIf = `NULL`
	)

virtual

Opens the socket if not already open.

Takes a DtInetEndpoint (containing the destination address, protocol - TCP or UDP, and destination port number), a source port number to use, a pointer to the local network interface device the socket will be bound to, and socket option flags. The address family (IPv4 or IPv6) is assumed from the dest endpoint object. If the specified local port is 0 an ephemeral port will be chosen for the connection UNLESS the destination is a broadcast or multicast address, in which case the destination port is used as the local port also. If no host interface is specified the most appropriate interface will be chosen based on the destination. If the destination endpoint specifies a multicast address the multicast group is joined automatically when the socket is opened and the group member- ship is dropped when the socket is closed. This ctor will not throw exceptions on failure. Check the socket status by calling state() to determine if the socket is ready.

Reimplemented in DtSmSocket__rti__.

References myEndpoint, DtMsgSocket::myLastError, and DtMsgSocket::mySocket.

Referenced by DtRtiAssistantPeer::addSocketsForInterfaces(), DtConnectionMgr::createBestEffortConn(), DtMulitcastDiscoveryMgr::init(), DtExtendedRtiMsgForwarder::init(), and DtInOutForwarderPort::initializeConnections().