NetworkThread Class Reference

Handles the network access to the robot (e.g. via WLAN). More...

#include <networkThread.h>

List of all members.

Public Slots
void	sendNetworkCommand (QString text)
void	setNetworkMaster ()
void	setNetworkSlave ()

Signals
void	dataReceived (QString text)
void	heartbeat (unsigned char state)

Public Member Functions
bool	init (unsigned int portListen, unsigned int portSend)
	NetworkThread ()
virtual void	run ()
void	stop ()
void	swapPorts ()
	~NetworkThread ()

Private Slots
void	processPendingDatagrams ()

Private Attributes
bool	iAmTheMaster
bool	iAmTheSlave
	Indicates if this program is the master and sends data from the robot over the network.
unsigned int	networkPortListen
unsigned int	networkPortSend
volatile bool	stopped
QUdpSocket *	udpSocket

Static Private Attributes
static const unsigned char	GREEN = 2
static const unsigned char	LEDOFF = 0
static const unsigned char	RED = 1
static const unsigned long	THREADSLEEPTIME = 1000
	Indicates if this program is the slave and receives data from the robot over the network.

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Detailed Description

Handles the network access to the robot (e.g. via WLAN).

Author:

Markus Knapp It opens an UDP socket and listens on a port. When data are received, the signal dataReceived is emitted. UDP used, since the sending of the data does not need to be very reliable.

Definition at line 38 of file networkThread.h.

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Constructor & Destructor Documentation

NetworkThread::NetworkThread

(

)

Definition at line 23 of file networkThread.cpp.

NetworkThread::~NetworkThread

(

)

Definition at line 35 of file networkThread.cpp.

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Member Function Documentation

void NetworkThread::dataReceived ( QString  text )

signal

This signal emits when data were received over the network.

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void NetworkThread::heartbeat ( unsigned char  state )

signal

This signal is emitted every MSLEEP seconds to show that we are sending a master signal.

See also:

Gui::setLEDMasterSlave()

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bool NetworkThread::init	(	unsigned int	portListen,
		unsigned int	portSend
	)

Sets the network ports

Parameters:

portListen	is the network port where the class receives data.
portSend	is the network port where the class sends data.

Returns:

true on success, false on error

Definition at line 136 of file networkThread.cpp.

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void NetworkThread::processPendingDatagrams ( )

privateslot

This slot is automatically called by the framework, in the case of pending datagrams.

Definition at line 86 of file networkThread.cpp.

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void NetworkThread::run ( )

virtual

Starts the thread.

Todo:

add *master# string to ini-file

Definition at line 47 of file networkThread.cpp.

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void NetworkThread::sendNetworkCommand ( QString  text )

slot

Sends a string over the network

Definition at line 102 of file networkThread.cpp.

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void NetworkThread::setNetworkMaster ( )

slot

Enables sending the 'master' signal over network every second

Definition at line 155 of file networkThread.cpp.

void NetworkThread::setNetworkSlave ( )

slot

Setting the network 'slave' state.

Definition at line 164 of file networkThread.cpp.

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void NetworkThread::stop

(

)

Stops the thread.

Definition at line 41 of file networkThread.cpp.

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void NetworkThread::swapPorts

(

)

Swaps the sender and listener port. This is at the beginning, when we have two instances of this program in one network

Definition at line 116 of file networkThread.cpp.

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Member Data Documentation

const unsigned char NetworkThread::GREEN = 2

staticprivate

Definition at line 123 of file networkThread.h.

bool NetworkThread::iAmTheMaster

private

Definition at line 111 of file networkThread.h.

bool NetworkThread::iAmTheSlave

private

Indicates if this program is the master and sends data from the robot over the network.

Definition at line 112 of file networkThread.h.

const unsigned char NetworkThread::LEDOFF = 0

staticprivate

This is for the

See also:

heartbeat signal (the GUI LED colors)

Definition at line 121 of file networkThread.h.

unsigned int NetworkThread::networkPortListen

private

Definition at line 109 of file networkThread.h.

unsigned int NetworkThread::networkPortSend

private

Definition at line 110 of file networkThread.h.

const unsigned char NetworkThread::RED = 1

staticprivate

Definition at line 122 of file networkThread.h.

volatile bool NetworkThread::stopped

private

Definition at line 108 of file networkThread.h.

const unsigned long NetworkThread::THREADSLEEPTIME = 1000

staticprivate

Indicates if this program is the slave and receives data from the robot over the network.

Definition at line 116 of file networkThread.h.

QUdpSocket* NetworkThread::udpSocket

private

Definition at line 107 of file networkThread.h.

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

• direcs/src/networkThread.h
• direcs/src/networkThread.cpp