[SOLVED]QTcpServer not listening on s60 Device

hasnain

I have a simple application which use QTcpServer and QTcpSocket for accepting and making connections. the app is working fine on simulator server accept connections exchange data. But when i tested the app on device server listen on local host but fail to listen on WLAN ip. some one have any idea how i can make a server which listen on WLAN ip. Following is my .pro .h and .cpp files. Please Help

.pro file
@#-------------------------------------------------

Project created by QtCreator 2010-11-26T15:34:52

#-------------------------------------------------

QT += core gui network xml

TARGET = J2metest2
TEMPLATE = app

SOURCES += main.cpp
mainwindow.cpp

HEADERS += mainwindow.h

FORMS += mainwindow.ui

CONFIG += mobility
MOBILITY =

symbian {
TARGET.UID3 = 0xe9a8f007
TARGET.CAPABILITY += LocalServices NetworkServices
TARGET.EPOCSTACKSIZE = 0x14000
TARGET.EPOCHEAPSIZE = 0x020000 0x800000
}
@

.h file
@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include<QTcpServer>
#include<QTcpSocket>
#include<QNetworkInterface>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();

private:
Ui::MainWindow *ui;
QTcpServer server;
QTcpSocket *serverSocket;
QTcpSocket *clientSocket;
void connectToServer();
void startServer();
private slots:
void on_pushButton_2_clicked();
void on_pushButton_3_clicked();
void on_pushButton_clicked();
void newConn();
void serverSocketRead();
void clientSocketRead();
};

#endif // MAINWINDOW_H
@

hasnain

.cpp FIle
@#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
connect(&server,SIGNAL(newConnection()),this,SLOT(newConn()));
// connect(clientSocket,SIGNAL(readyRead()),this,SLOT(clientSocketRead()));
// connect(serverSocket,SIGNAL(readyRead()),this,SLOT(serverSocketRead()));

}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::startServer(){

    QString ownIpAddress;
    QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();
    for (int i = 0; i < ipAddressesList.size(); ++i) {
        if (ipAddressesList.at(i) != QHostAddress::LocalHost &&
            ipAddressesList.at(i).toIPv4Address()) {
            ownIpAddress = ipAddressesList.at(i).toString();
            break;
        }
    }
    if (ownIpAddress.isEmpty())
        ownIpAddress = QHostAddress(QHostAddress::LocalHost).toString();
if(!server.listen((QHostAddress)ownIpAddress,1235)){
        qDebug()<<"server can not be started";

    }
    else{
        qDebug()<<"Server started at"<<server.serverAddress()<<"Port"<<server.serverPort();
        ui->textBrowser->insertPlainText(tr("server started at : %1 and %2 ").arg(server.serverAddress().toString()).arg(server.serverPort()));
    }


}

void MainWindow::newConn(){
char *data = new char();
qDebug()<<"New Connection";
ui->textBrowser->insertPlainText("New Connection");
// qDebug()<<"threads "<<threads.count()<<" Textbrowsers "<<textBrowsers.count()<<"Sockets "<<connections.count();
uint i;
i=1024;
// QString name;
serverSocket =server.nextPendingConnection();
connect(serverSocket,SIGNAL(readyRead()),this,SLOT(serverSocketRead()));
QByteArray block;
QDataStream out(&block,QIODevice::WriteOnly);
// QString a=tr("(iq,bhatti");
//// out<<a.toAscii();
// serverSocket->write(a.toUtf8());
// serverSocket->flush();

}

void MainWindow::connectToServer(){
// char *data = new char();
char *data = new char();
uint i;
i=1024;
uint port;
port = 1235;
QTcpSocket *clientSocket = new QTcpSocket(this);
connect(clientSocket,SIGNAL(readyRead()),this,SLOT(clientSocketRead()));
clientSocket->connectToHost((QHostAddress)"192.168.10.119",port,QIODevice::ReadWrite);
clientSocket->waitForConnected();
if(clientSocket->state()== QAbstractSocket::ConnectedState){
qDebug()<<"Connected to Server";
ui->textBrowser->insertPlainText("Connected to Server");
// clientSocket->waitForReadyRead();
// clientSocket->readLine(data,i);
// qDebug()<<data;
// QString datain = data;
}
}
void MainWindow::on_pushButton_clicked()
{
startServer();
}

void MainWindow::clientSocketRead(){
char *data = new char();
uint i;
i=1024;
QString a;
clientSocket->readLine(data,i);
a = tr("/n Other party Said;")+ data;
ui->textBrowser->insertPlainText(a);
}

void MainWindow::serverSocketRead(){
char *data = new char();
QByteArray b;// = new QByteArray();
QByteArray b2;
uint i;
i=1024;
QString a;

b = serverSocket->read(i);
if(b.at(0)=='�'){
    b.remove(0,2);
    //b.append('�');
}

// QDataStream in(b2);
// for(int k=0;k<b.length();k++){
// *(data+k) = *(b+k);
// }
//data = b.data();
// a.fromUtf8(data,20);
//b.remove(0,2);
//b.append('�');
//serverSocin<<b;
//a.fromUtf8(serverSocin);

a = b;
qDebug()<<a;

// a = tr("/n Other party Said;")+ b.to
ui->textBrowser->insertPlainText(a);
}

void MainWindow::on_pushButton_3_clicked()
{
// char *data = new char();
uint i;
i=1024;
QByteArray b;
// data = ui->lineEdit->text().;
// if(clientSocket->state()== QAbstractSocket::ConnectedState){
// clientSocket->write(ui->lineEdit->text().toLocal8Bit());
// }
if(serverSocket->state()== QAbstractSocket::ConnectedState){

    QDataStream out(&b,QIODevice::WriteOnly);
    out<<ui->lineEdit->text().toUtf8();
    serverSocket->write(b);
    serverSocket->flush();
}

}

void MainWindow::on_pushButton_2_clicked()
{
connectToServer();
}
@

blex

Is it possible to be an issue with firewall? Or some routing problem?

hasnain

I have tried on device debugging the server error is "the address is not Available". where as app it self has extracted the WLAN from Network interface. The device I am using is Nokia 5800. Any idea how i can set firewall or permissions on device.

blex

No idea about firewall on device, but may be it is network setting.

I have the same device, so, if you send me the client and server sources then I may test on it tomorrow.

Try to use

@
server.listen(QHostAddress::Any,1235)
@

tobias.hunger

You do have the networking capability set, don't you?

blex

[quote author="Tobias Hunger" date="1291017672"]You do have the networking capability set, don't you?
[/quote]

Please more details.

hasnain

Yes, i have capabilities set see .pro file
@
TARGET.CAPABILITY += LocalServices NetworkServices
@

and Yes i have tried
@server.listen(QHostAddress::Any,1235)@

server.serverAddress returned 0.0.0.0

Source of my app is as i have pasted above."blex" if you can just test @startServer() @ on your device and let me know that it works on WLAN ip.
the main.cpp for this app is as below
@#include <QtGui/QApplication>
#include "mainwindow.h"

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
#if defined(Q_WS_S60)
w.showMaximized();
#else
w.show();
#endif

return a.exec&#40;&#41;;

}@

And Thanks for taking interest in mu problem

blex

Return of 0.0.0.0 is normal, it means that connection may be established from any address.

I see that some characters are broken in the post, so, please, share the archive with sources.

Also, how should I check that it works? I need client to connect to the server.

hasnain

Problem Solved, there was nothing wrong in the code, it was issues with my WLAN i have manual ip for WLAN, which was not working for my app, i got mac of device bind with an ip in DHCP, now device get ip from DHCP and every thing is good.
Thanks 'Blex' for taking interest in my problem.

blex

[quote author="hasnain" date="1291104380"]Problem Solved, there was nothing wrong in the code, it was issues with my WLAN[/quote]

Congratulations :)