ISDNQ921 Class Reference

ISDN Q.921 implementation on top of a hardware interface. More...

#include <yatesig.h>

Inheritance diagram for ISDNQ921:

List of all members.

Public Member Functions
	ISDNQ921 (const NamedList &params, const char *name=0)
virtual	~ISDNQ921 ()
u_int64_t	dataTimeout () const
virtual bool	multipleFrame (bool establish, bool force)
virtual bool	sendData (const DataBlock &data, bool ack)
virtual void	cleanup ()
virtual void *	getObject (const String &name) const
virtual void	destruct ()
void	setDebug (bool printFrames, bool extendedDebug)
void	setDumper (SignallingDumper *dumper=0)
Protected Member Functions
virtual void	timerTick (const Time &when)
virtual bool	receivedPacket (const DataBlock &packet)
virtual bool	notify (SignallingInterface::Notification event)
void	reset ()

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Detailed Description

ISDN Q.921 implementation on top of a hardware interface.

Q.921 ISDN Layer 2 implementation on top of a hardware HDLC interface

---

Constructor & Destructor Documentation

ISDNQ921	(	const NamedList &	params,
		const char *	name = 0
	)

Constructor Initialize this object and the component

Parameters:

	params	Layer's and TelEngine::ISDNLayer2 parameters
	name	Name of this component

virtual ~ISDNQ921

(

)

[virtual]

Destructor

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Member Function Documentation

virtual void cleanup

(

)

[virtual]

Emergency release. Send 'disconnect' command. Reset all data. Set state to 'Released' This method is thread safe

Implements ISDNLayer2.

u_int64_t dataTimeout

(

)

const [inline]

Get the timeout of a data frame. After that, a higher layer may retransmit data

Returns:

The timeout of a data frame

virtual void destruct

(

)

[inline, virtual]

Detach links. Disposes memory

Reimplemented from GenObject.

References SignallingReceiver::attach(), ISDNLayer2::attach(), and TelEngine::destruct().

virtual void* getObject

(

const String &

name

)

const [virtual]

Get a pointer to a data member or this layer

Parameters:

name

Object name

Returns:

The requested pointer or 0 if not exists

Reimplemented from GenObject.

virtual bool multipleFrame	(	bool	establish,
		bool	force
	)			[virtual]

Implements Q.921 DL-ESTABLISH and DL-RELEASE request primitives If accepted, the primitive is enqueued for further processing This method is thread safe

Parameters:

	establish	True to establish. False to release
	force	True to establish even if we already are in this mode. This parameter is ignored if establish is false

Returns:

True if the request was accepted

Reimplemented from ISDNLayer2.

virtual bool notify

(

SignallingInterface::Notification

event

)

[protected, virtual]

Process a notification generated by the attached interface This method is thread safe

Parameters:

event

Notification event reported by the interface

Returns:

True if notification was processed

Reimplemented from SignallingReceiver.

virtual bool receivedPacket

(

const DataBlock &

packet

)

[protected, virtual]

Process a packet received by the receiver's interface This method is thread safe

Parameters:

packet

The received packet

Returns:

True if message was successfully processed

Implements SignallingReceiver.

void reset

(

)

[protected]

Reset object if not in Released state. Drop all frames This method is thread safe

virtual bool sendData	(	const DataBlock &	data,
		bool	ack
	)			[virtual]

Implements Q.921 DL-DATA and DL-UNIT DATA request primitives Send data through the HDLC interface This method is thread safe

Parameters:

	data	Data to send
	ack	True to send an acknoledged frame, false to send an unacknoledged one

Returns:

False if the request was not accepted or send operation failed

Reimplemented from ISDNLayer2.

void setDebug	(	bool	printFrames,
		bool	extendedDebug
	)			[inline]

Set debug data of this layer

Parameters:

	printFrames	Enable/disable frame printing on output
	extendedDebug	Enable/disable hex data dump if print frames is enabled

void setDumper

(

SignallingDumper *

dumper = 0

)

Set or remove a data dumper

Parameters:

dumper

Pointer to the data dumper object, 0 to remove

virtual void timerTick

(

const Time &

when

)

[protected, virtual]

Method called periodically to check timeouts This method is thread safe

Parameters:

when

Time to use as computing base for events and timeouts

Reimplemented from SignallingComponent.

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

• yatesig.h