Problem with QFtp

[schnudl]

I want to use QFtp (I know, its deprecated, but I like it, because it's simple) within a console application (that means no GUI).
In order to have an event handler, I create a QCoreApplication (see below).
More or less, this approch is according to what I found in the web.

Whatever I do, the slot "commandStarted" is never executed, although the Ftp has pending commands.

I have no idea...

I would appreciate any help or hint !!!

Many thanks,
Michael

This is my Code:

...
 
        /*************************************************************/
        /*                 FTP CLASS                                 */   
        /*************************************************************/
        class Ftp : public QFtp
        {
            Q_OBJECT
 
        public:
            Ftp(QObject* parent = 0)
            {
                connect(this, SIGNAL(done(bool)), QCoreApplication::instance(), SLOT(quit()));
                connect(this, SIGNAL(commandStarted(int)), this, SLOT(commandStarted_callback()));
            }
 
        public slots:
            void commandStarted_callback(void);
            void start();
 
        private:
            QFile * _file;
        };
 
 
 
        int start_ftp_thread()
        {
 
            int argc = 0;
            QCoreApplication app(argc, NULL);
 
            /* create new ftp handler */
            moc::Ftp* ftp = new moc::Ftp();
            ftp->start();
 
            /* start handler */
            app.exec();
 
            return 0;
        }
 
        /*************************************************************/
        /*            Entry point of FTP handling                    */   
        /*************************************************************/
        void moc::Ftp::start()
        {
          int x;
 
          _file = new QFile( "D:\\junk\\qt.txt" );
          _file->open(QIODevice::ReadWrite);
 
          x = setTransferMode(QFtp::Active);
          x = connectToHost("10.9.16.159"); 
          x = login("anonymous");                            
          x = list();
          x = get("SCHEDULE.CSV",_file);               
          x = close();
 
          if (hasPendingCommands())
          {
              std::cout << "I have commands to execute..." << std::endl;
          }
        }
 
        int start_ftp_thread()
        {
 
            int argc = 0;
            QCoreApplication app(argc, NULL);
 
            /* create new ftp handler */
            moc::Ftp* ftp = new moc::Ftp();
            ftp->start();
 
            /* start handler */
            app.exec();
 
            return 0;
        }
 
 
        /*************************************************************/
        /*            Called upon command started                    */   
        /*************************************************************/
        void moc::Ftp::commandStarted_callback(void)
        {
            std::cout << "Command started..." << std::endl;
        }
 
 
        int main(void)
        {
            start_ftp();
            return 0;
        }

...
        
        /*************************************************************/
        /*                 FTP CLASS                                 */   
        /*************************************************************/
        class Ftp : public QFtp
        {
            Q_OBJECT

        public:
            Ftp(QObject* parent = 0)
            {
                connect(this, SIGNAL(done(bool)), QCoreApplication::instance(), SLOT(quit()));
                connect(this, SIGNAL(commandStarted(int)), this, SLOT(commandStarted_callback()));
            }

        public slots:
            void commandStarted_callback(void);
            void start();

        private:
            QFile * _file;
        };

        
        
        int start_ftp_thread()
        {

            int argc = 0;
            QCoreApplication app(argc, NULL);

            /* create new ftp handler */
            moc::Ftp* ftp = new moc::Ftp();
            ftp->start();

            /* start handler */
            app.exec();

            return 0;
        }
        
        /*************************************************************/
        /*            Entry point of FTP handling                    */   
        /*************************************************************/
        void moc::Ftp::start()
        {
          int x;

          _file = new QFile( "D:\\junk\\qt.txt" );
          _file->open(QIODevice::ReadWrite);

          x = setTransferMode(QFtp::Active);
          x = connectToHost("10.9.16.159"); 
          x = login("anonymous");                            
          x = list();
          x = get("SCHEDULE.CSV",_file);               
          x = close();

          if (hasPendingCommands())
          {
              std::cout << "I have commands to execute..." << std::endl;
          }
        }
        
        int start_ftp_thread()
        {

            int argc = 0;
            QCoreApplication app(argc, NULL);

            /* create new ftp handler */
            moc::Ftp* ftp = new moc::Ftp();
            ftp->start();

            /* start handler */
            app.exec();

            return 0;
        }
        
        
        /*************************************************************/
        /*            Called upon command started                    */   
        /*************************************************************/
        void moc::Ftp::commandStarted_callback(void)
        {
            std::cout << "Command started..." << std::endl;
        }
        
        
        int main(void)
        {
            start_ftp();
            return 0;
        }

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[anda_skoa]

Check the return values of the connect() statement and also check if you see a warning during runtime about connect failing.

Cheers,
_

[schnudl]

Hello !

Return value is a positive number, referring to a command id.
Actually, x is 1, 2, 3, ....

No errors or warnings are emmited.

Regards, Michael

[anda_skoa]

Return value is a positive number, referring to a command id.

connect() returns a bool

No errors or warnings are emmited.

Since you are on Windows (according to your profile), do you have

CONFIG += console

CONFIG += console

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in your .pro file?

Is the declaration of your Ftp class in a header or in a source file? If in a header, is it listes in HEADERS in your .pro?

Cheers,
_