It's probably becouse of the while loop in main.cpp, it blocks client's event loop, and will return to event loop right after 'exit' will be typed. I mean this lines:
while (line != "exit") {
cout << "Message : ";
cin >> line;
cli.SendData(QString(line.c_str()));
}
How this can be avoided: main.cpp MUST reach return a.exec();
line to start event loop (i am excluding some ugly processEvent solutions right away ).
To send commands to cmd and NOT block event loop i used class i saw somewhere here on stackoverflow:
example of main.cpp:
QCoreApplication a(argc, argv);
qDebug()<<"Press 'q' to quit";
QTcpServer server;
qDebug()<<"Server is started -"<<server.isListening();
// Console reader to filter console input
ConsoleReader reader;
QObject::connect(&reader,SIGNAL(shutdown()),&a,SLOT(quit()));
return a.exec();
aaand behold, ConsoleReader
class, header:
#ifndef CONSOLEREADER_H
#define CONSOLEREADER_H
#pragma once
#include <QObject>
#include <QSocketNotifier>
class ConsoleReader : public QObject
{
Q_OBJECT
public:
explicit ConsoleReader(QObject *parent = 0);
~ConsoleReader();
signals:
void shutdown();
public slots:
void text();
private:
QSocketNotifier* notifier;
};
#endif // CONSOLEREADER_H
source:
#include "consolereader.h"
#include <QTextStream>
#include <QDebug>
#include <unistd.h> //Provides STDIN_FILENO
ConsoleReader::ConsoleReader(QObject *parent) :
QObject(parent)
{
notifier = new QSocketNotifier(STDIN_FILENO, QSocketNotifier::Read);
connect(notifier, SIGNAL(activated(int)), this, SLOT(text()));
}
void ConsoleReader::text()
{
QTextStream qin(stdin);
QString line = qin.readLine();
if (line==QString("q")){
qDebug()<<"Shutting down the server..";
emit shutdown();
}
else qDebug()<<"Unknown command: "<<line;
}
ConsoleReader::~ConsoleReader(){
delete notifier;
}