Encapsulation of the data and methods for a single generic connection to take care of one part of many clients talking to a single server. More...

#include <vrpn_Connection.h>

Inheritance diagram for vrpn_Endpoint:

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Collaboration diagram for vrpn_Endpoint:

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Public Member Functions
	vrpn_Endpoint (vrpn_TypeDispatcher dispatcher, vrpn_int32 connectedEndpointCounter)

virtual	~vrpn_Endpoint (void)

virtual int	pack_message (vrpn_uint32 len, struct timeval time, vrpn_int32 type, vrpn_int32 sender, const char *buffer, vrpn_uint32 class_of_service)=0
	Pack a message that will be sent the next time mainloop() is called. Turn off the RELIABLE flag if you want low-latency (UDP) send. More...

virtual int	send_pending_reports (void)=0
	send pending report, clear the buffer. This function was protected, now is public, so we can use it to send out intermediate results without calling mainloop More...

int	pack_log_description (void)
	Packs the log description set by setup_new_connection(). More...

virtual int	setup_new_connection (void)=0
	Sends the magic cookie and other information to its < peer. It is called by both the client and server setup routines. More...

virtual void	poll_for_cookie (const timeval *timeout=NULL)=0

virtual int	finish_new_connection_setup (void)=0

virtual void	drop_connection (void)=0
	Should only be called by vrpn_Connection::drop_connection(), < since there's more housecleaning to do at that level. I suppose < that argues against separating this function out. More...

virtual void	clearBuffers (void)=0
	Empties out the TCP and UDP send buffers. < Needed by vrpn_FileConnection to get at {udp,tcp}NumOut. More...

int	pack_sender_description (vrpn_int32 which)
	Packs a sender description over our socket. More...

int	pack_type_description (vrpn_int32 which)
	Packs a type description. More...

Accessors
int	local_type_id (vrpn_int32 remote_type) const
	Returns the local mapping for the remote type (-1 if none). More...

int	local_sender_id (vrpn_int32 remote_sender) const
	Returns the local mapping for the remote sender (-1 if none). More...

virtual vrpn_bool	doing_okay (void) const =0

Manipulators
void	init (void)

virtual int	mainloop (timeval *timeout)=0

void	clear_other_senders_and_types (void)
	Clear out the remote mapping list. This is done when a connection is dropped and we want to try and re-establish it. More...

int	newLocalSender (const char *name, vrpn_int32 which)
	A new local sender or type has been established; set the local type for it if the other side has declared it. Return 1 if the other side has one, 0 if not. More...

int	newLocalType (const char *name, vrpn_int32 which)

int	newRemoteType (cName type_name, vrpn_int32 remote_id, vrpn_int32 local_id)
	Adds a new remote type/sender and returns its index. Returns -1 on error. More...

int	newRemoteSender (cName sender_name, vrpn_int32 remote_id, vrpn_int32 local_id)

Routines to inform the endpoint of the connection of
which it is a part.
void	setConnection (vrpn_Connection *conn)

vrpn_Connection *	getConnection ()

Static Public Member Functions
Routines that handle system messages
Visible so that vrpn_Connection can pass them to the Dispatcher
static int VRPN_CALLBACK	handle_sender_message (void *userdata, vrpn_HANDLERPARAM p)

static int VRPN_CALLBACK	handle_type_message (void *userdata, vrpn_HANDLERPARAM p)

Public Attributes
int	status

long	d_remoteLogMode
	Mode to put the remote logging in. More...

char *	d_remoteInLogName
	Name of the remote log file. More...

char *	d_remoteOutLogName
	Name of the remote log file. More...

char	rhostname [150]

Protected Member Functions
virtual int	dispatch (vrpn_int32 type, vrpn_int32 sender, timeval time, vrpn_uint32 payload_len, char *bufptr)

int	tryToMarshall (char outbuf, vrpn_int32 &buflen, vrpn_int32 &numOut, vrpn_uint32 len, timeval time, vrpn_int32 type, vrpn_int32 sender, const char buffer, vrpn_uint32 classOfService)
	Calls marshall_message(); if that fails, calls < send_pending_reports() and then marshalls again. < Returns the number of characters successfully marshalled. More...

int	marshall_message (char outbuf, vrpn_uint32 outbuf_size, vrpn_uint32 initial_out, vrpn_uint32 len, struct timeval time, vrpn_int32 type, vrpn_int32 sender, const char buffer, vrpn_uint32 sequenceNumber)
	Marshal the message into the buffer if it will fit. More...

Protected Attributes
vrpn_TranslationTable *	d_senders

vrpn_TranslationTable *	d_types

vrpn_TypeDispatcher *	d_dispatcher

vrpn_int32 *	d_connectionCounter

vrpn_Connection *	d_parent

Logging
TCH 19 April 00; changed into two logs 16 Feb 01
vrpn_Log *	d_inLog

vrpn_Log *	d_outLog

void	setLogNames (const char inName, const char outName)

int	openLogs (void)

Detailed Description

Encapsulation of the data and methods for a single generic connection to take care of one part of many clients talking to a single server.

This will only be used from within the vrpn_Connection class; it should not be instantiated by users or devices. Should not be visible!

Definition at line 200 of file vrpn_Connection.h.

Constructor & Destructor Documentation

vrpn_Endpoint::vrpn_Endpoint	(	vrpn_TypeDispatcher *	dispatcher,
		vrpn_int32 *	connectedEndpointCounter
	)

Definition at line 2634 of file vrpn_Connection.C.

References init().

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vrpn_Endpoint::~vrpn_Endpoint ( void )

virtual

Definition at line 2677 of file vrpn_Connection.C.

References d_inLog, d_outLog, d_remoteInLogName, d_remoteOutLogName, d_senders, and d_types.

Member Function Documentation

void vrpn_Endpoint::clear_other_senders_and_types ( void )

Clear out the remote mapping list. This is done when a connection is dropped and we want to try and re-establish it.

Definition at line 3022 of file vrpn_Connection.C.

References d_senders, and d_types.

Referenced by vrpn_Endpoint_IP::drop_connection(), and vrpn_Connection::handle_disconnect_message().

virtual void vrpn_Endpoint::clearBuffers ( void )

pure virtual

Empties out the TCP and UDP send buffers. < Needed by vrpn_FileConnection to get at {udp,tcp}NumOut.

Implemented in vrpn_Endpoint_IP.

int vrpn_Endpoint::dispatch	(	vrpn_int32	type,
		vrpn_int32	sender,
		timeval	time,
		vrpn_uint32	payload_len,
		char *	bufptr
	)

protectedvirtual

Definition at line 4168 of file vrpn_Connection.C.

References d_dispatcher, local_sender_id(), and local_type_id().

Referenced by vrpn_Endpoint_IP::getOneTCPMessage(), and vrpn_Endpoint_IP::getOneUDPMessage().

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virtual vrpn_bool vrpn_Endpoint::doing_okay ( void ) const

pure virtual

Implemented in vrpn_Endpoint_IP.

virtual void vrpn_Endpoint::drop_connection ( void )

pure virtual

Should only be called by vrpn_Connection::drop_connection(), < since there's more housecleaning to do at that level. I suppose < that argues against separating this function out.

Implemented in vrpn_Endpoint_IP.

Referenced by vrpn_Connection_IP::drop_connection().

virtual int vrpn_Endpoint::finish_new_connection_setup ( void )

pure virtual

Implemented in vrpn_Endpoint_IP.

vrpn_Connection* vrpn_Endpoint::getConnection ( )

inline

Definition at line 325 of file vrpn_Connection.h.

References vrpn_HANDLERPARAM::payload_len.

int vrpn_Endpoint::handle_sender_message	(	void *	userdata,
		vrpn_HANDLERPARAM	p
	)

static

Definition at line 4388 of file vrpn_Connection.C.

References vrpn_HANDLERPARAM::buffer, d_dispatcher, d_parent, newRemoteSender(), vrpn_HANDLERPARAM::payload_len, vrpn_Connection::register_sender(), and vrpn_HANDLERPARAM::sender.

Referenced by vrpn_Connection::init().

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int vrpn_Endpoint::handle_type_message	(	void *	userdata,
		vrpn_HANDLERPARAM	p
	)

static

Definition at line 4316 of file vrpn_Connection.C.

References vrpn_HANDLERPARAM::buffer, d_dispatcher, d_parent, newRemoteType(), vrpn_HANDLERPARAM::payload_len, vrpn_Connection::register_message_type(), and vrpn_HANDLERPARAM::sender.

Referenced by vrpn_Connection::init().

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void vrpn_Endpoint::init ( void )

Definition at line 2774 of file vrpn_Connection.C.

References d_inLog, d_outLog, d_senders, d_types, vrpn_Log, and vrpn_TranslationTable.

Referenced by vrpn_Endpoint().

int vrpn_Endpoint::local_sender_id ( vrpn_int32 remote_sender ) const

Returns the local mapping for the remote sender (-1 if none).

Definition at line 2760 of file vrpn_Connection.C.

References d_senders.

Referenced by dispatch(), and vrpn_File_Connection::playone_to_filetime().

int vrpn_Endpoint::local_type_id ( vrpn_int32 remote_type ) const

Returns the local mapping for the remote type (-1 if none).

Definition at line 2755 of file vrpn_Connection.C.

References d_types.

Referenced by dispatch(), vrpn_Endpoint_IP::getOneUDPMessage(), and vrpn_File_Connection::playone_to_filetime().

virtual int vrpn_Endpoint::mainloop ( timeval * timeout )

pure virtual

Implemented in vrpn_Endpoint_IP.

Referenced by vrpn_Connection_IP::mainloop().

int vrpn_Endpoint::marshall_message	(	char *	outbuf,
		vrpn_uint32	outbuf_size,
		vrpn_uint32	initial_out,
		vrpn_uint32	len,
		struct timeval	time,
		vrpn_int32	type,
		vrpn_int32	sender,
		const char *	buffer,
		vrpn_uint32	seqNo
	)

protected

Marshal the message into the buffer if it will fit.

Return the number of characters sent (either 0 or the number requested). This function should not be called directly; rather, call tryToMarshall, which will flush the outgoing buffer if the marshalling attempt fails.

Definition at line 4234 of file vrpn_Connection.C.

References vrpn_ALIGN.

Referenced by tryToMarshall().

int vrpn_Endpoint::newLocalSender	(	const char *	name,
		vrpn_int32	which
	)

A new local sender or type has been established; set the local type for it if the other side has declared it. Return 1 if the other side has one, 0 if not.

Definition at line 3032 of file vrpn_Connection.C.

References d_senders.

int vrpn_Endpoint::newLocalType	(	const char *	name,
		vrpn_int32	which
	)

Definition at line 3041 of file vrpn_Connection.C.

References d_types.

int vrpn_Endpoint::newRemoteSender	(	cName	sender_name,
		vrpn_int32	remote_id,
		vrpn_int32	local_id
	)

Definition at line 3054 of file vrpn_Connection.C.

References d_senders.

Referenced by handle_sender_message().

int vrpn_Endpoint::newRemoteType	(	cName	type_name,
		vrpn_int32	remote_id,
		vrpn_int32	local_id
	)

Adds a new remote type/sender and returns its index. Returns -1 on error.

Definition at line 3047 of file vrpn_Connection.C.

References d_types.

Referenced by handle_type_message().

int vrpn_Endpoint::openLogs ( void )

Definition at line 4374 of file vrpn_Connection.C.

References d_inLog, d_outLog, and vrpn_Log::open().

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int vrpn_Endpoint::pack_log_description ( void )

Packs the log description set by setup_new_connection().

Definition at line 3277 of file vrpn_Connection.C.

References d_remoteInLogName, d_remoteLogMode, d_remoteOutLogName, vrpn_Endpoint_IP::pack_message(), vrpn_buffer(), vrpn_CONNECTION_LOG_DESCRIPTION, vrpn_CONNECTION_RELIABLE, and vrpn_gettimeofday.

Referenced by vrpn_Endpoint_IP::finish_new_connection_setup().

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virtual int vrpn_Endpoint::pack_message	(	vrpn_uint32	len,
		struct timeval	time,
		vrpn_int32	type,
		vrpn_int32	sender,
		const char *	buffer,
		vrpn_uint32	class_of_service
	)

pure virtual

Pack a message that will be sent the next time mainloop() is called. Turn off the RELIABLE flag if you want low-latency (UDP) send.

Implemented in vrpn_Endpoint_IP.

int vrpn_Endpoint::pack_sender_description ( vrpn_int32 which )

Packs a sender description over our socket.

Definition at line 4466 of file vrpn_Connection.C.

References d_dispatcher, vrpn_Endpoint_IP::pack_message(), SOCKET, vrpn_CONNECTION_RELIABLE, vrpn_CONNECTION_SENDER_DESCRIPTION, vrpn_gettimeofday, and vrpn_noint_select().

Referenced by vrpn_Endpoint_IP::finish_new_connection_setup(), and vrpn_Connection::register_sender().

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int vrpn_Endpoint::pack_type_description ( vrpn_int32 which )

Packs a type description.

Definition at line 4436 of file vrpn_Connection.C.

References d_dispatcher, vrpn_Endpoint_IP::pack_message(), vrpn_CONNECTION_RELIABLE, vrpn_CONNECTION_TYPE_DESCRIPTION, and vrpn_gettimeofday.

Referenced by vrpn_Endpoint_IP::finish_new_connection_setup(), and vrpn_Connection::register_message_type().

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virtual void vrpn_Endpoint::poll_for_cookie ( const timeval * timeout = NULL )

pure virtual

Implemented in vrpn_Endpoint_IP.

virtual int vrpn_Endpoint::send_pending_reports ( void )

pure virtual

send pending report, clear the buffer. This function was protected, now is public, so we can use it to send out intermediate results without calling mainloop

Implemented in vrpn_Endpoint_IP.

void vrpn_Endpoint::setConnection ( vrpn_Connection * conn )

inline

Definition at line 324 of file vrpn_Connection.h.

Referenced by vrpn_Connection::compact_endpoints().

void vrpn_Endpoint::setLogNames	(	const char *	inName,
		const char *	outName
	)

Definition at line 4364 of file vrpn_Connection.C.

References d_inLog, d_outLog, and vrpn_Log::setName().

Referenced by vrpn_Connection::handle_log_message().

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virtual int vrpn_Endpoint::setup_new_connection ( void )

pure virtual

Sends the magic cookie and other information to its < peer. It is called by both the client and server setup routines.

Implemented in vrpn_Endpoint_IP.

Referenced by vrpn_Connection_IP::handle_connection().

int vrpn_Endpoint::tryToMarshall	(	char *	outbuf,
		vrpn_int32 &	buflen,
		vrpn_int32 &	numOut,
		vrpn_uint32	len,
		timeval	time,
		vrpn_int32	type,
		vrpn_int32	sender,
		const char *	buffer,
		vrpn_uint32	classOfService
	)

protected

Calls marshall_message(); if that fails, calls < send_pending_reports() and then marshalls again. < Returns the number of characters successfully marshalled.

Definition at line 4199 of file vrpn_Connection.C.

References marshall_message(), and vrpn_Endpoint_IP::send_pending_reports().

Referenced by vrpn_Endpoint_IP::pack_message().

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