NetworkListener Class Reference

class for listening to incoming network connections. More...

#include <networklistener.h>

Inheritance diagram for NetworkListener:

Collaboration diagram for NetworkListener:

Signals
void	error (QTcpSocket::SocketError socketError)
void	nodeConnectionAttemptStatus (Connection::ConnectionState aStatus, const Hash aHashOfAttemptedNode)

Public Member Functions
	NetworkListener (MController *aController, Model *aModel)
	~NetworkListener ()
bool	startListen (bool aIpv6)
virtual bool	dataReceived (const QByteArray &aData, Connection &aConnection)
virtual void	connectionClosed (Connection *aDeletee)
virtual void	connectionReady (Connection *aBusinessEntity)
void	stopAccepting ()
void	figureOutLocalAddresses ()

Protected Member Functions
void	incomingConnection (int aSocketDescriptor)

Private Slots
void	broadCastReceived ()
void	threadIsDeleted ()
void	networkStateChanged (QNetworkSession::State aState)
void	connectionAttemptFailed (const Hash &aNodeHash)

Private Attributes
MController *	iController
Model *	iModel
ProtocolMessageParser *	iParser
QUdpSocket	iBroadCastListener
bool	iCanAccept
QNetworkConfiguration	iConnectionConfig
QNetworkSession *	iNetworkSession

Detailed Description

class for listening to incoming network connections.

This class will spawn a Connection for each received network connection.

Constructor & Destructor Documentation

NetworkListener::NetworkListener	(	MController *	aController,
		Model *	aModel
	)

Constructor

Parameters

aController	application controller for app state frobnication
aModel	data model reference for data storage
aIpv6	if set to true, this class will listen in Ipv6 instead of v4 and will not enumerate local network interfaces.

NetworkListener::~NetworkListener

(

)

Destructor

Member Function Documentation

void NetworkListener::broadCastReceived ( )

privateslot

void NetworkListener::connectionAttemptFailed ( const Hash &  aNodeHash )

privateslot

This slot is used to communicate situation where connection-attempt to node fails

Parameters

aNodeHash

fingerprint of failed node

virtual void NetworkListener::connectionClosed ( Connection *  aDeletee )

virtual

From ConnectionObserver this is called by peer connection at close

Implements Connection::ConnectionObserver.

virtual void NetworkListener::connectionReady ( Connection *  aBusinessEntity )

virtual

From ConnectionObserver this is called by peer connection at successful open

Implements Connection::ConnectionObserver.

virtual bool NetworkListener::dataReceived ( const QByteArray &  aData, Connection &  aConnection  )

virtual

from ConnectionObserver

Implements Connection::ConnectionObserver.

void NetworkListener::error ( QTcpSocket::SocketError  socketError )

signal

void NetworkListener::figureOutLocalAddresses

(

)

Method that loops network interfaces and tries to find a valid local address to advertise

void NetworkListener::incomingConnection ( int  aSocketDescriptor )

protected

void NetworkListener::networkStateChanged ( QNetworkSession::State  aState )

privateslot

void NetworkListener::nodeConnectionAttemptStatus ( Connection::ConnectionState  aStatus, const Hash  aHashOfAttemptedNode  )

signal

this signal is used to communicate (at least to publishing engine) status of connection attempt to particular node. network connection engine will spawn connections to more-or-less random nodes but publishing logic may ask for connections to specific nodes. this signal will communicate outcome of such requests

bool NetworkListener::startListen

(

bool

aIpv6

)

separate method for starting the listen. this now works with qt4.8 but it seems like semantics of listen may change in qt5, where listening in QHostAddress::Any automatically means both v4 and v6.

Parameters

aIpv6

if true, tries to listen on both IPv6 and ipv4.

Returns

true if listening started.

void NetworkListener::stopAccepting

(

)

used in closing of app: stops accepting connections

void NetworkListener::threadIsDeleted ( )

privateslot

Member Data Documentation

QUdpSocket NetworkListener::iBroadCastListener

private

bool NetworkListener::iCanAccept

private

used in closing of application: flag for not accepting connections any more

QNetworkConfiguration NetworkListener::iConnectionConfig

private

MController* NetworkListener::iController

private

Model* NetworkListener::iModel

private

QNetworkSession* NetworkListener::iNetworkSession

private

ProtocolMessageParser* NetworkListener::iParser

private

This animal here knows all incoming bytearrays

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

• /tmp/classified-ads/classified_ads/net/networklistener.h