QHttp related

[jacek]

I get the same responce

I've made a little experiment:

#include <QApplication>
#include <QHttp>
 
class Test : public QObject
{
   Q_OBJECT
   public:
      Test() : QObject( 0 )
      {
         _http = new QHttp( "www.xxx.zzz", 80, this );
         connect( _http, SIGNAL( readyRead( const QHttpResponseHeader & ) ), this, SLOT( read( const QHttpResponseHeader & ) ) );
         connect( _http, SIGNAL( requestFinished( int, bool  )), this, SLOT( finished( int, bool ) ) );
         connect( _http, SIGNAL( done(bool) ), this, SLOT( done(bool) ) );
         start();
      };
 
   private slots:
      void start()
      {
         int id = _http->get( "/" );
         qWarning( "start id=%d", id );
      }
 
      void done( bool error )
      {
         qWarning("done: %d", error );
         qWarning("error: %s", qPrintable( _http->errorString() ) );
         // start();
      }
      void finished( int id, bool error )
      {
         qWarning("finished: %d %d ", id, error );
         start();
      }
 
      void read( const QHttpResponseHeader& header )
      {
         qWarning( "code: %d, reason: %s", header.statusCode(), qPrintable( header.reasonPhrase() ) );
         qWarning( _http->readAll() );
      }
 
   private:
      QHttp *_http;
 
};
 
int main( int argc, char **argv )
{
   QApplication app( argc, argv );
   Test t;
   return app.exec();
}
 
#include "main.moc"

#include <QApplication>
#include <QHttp>

class Test : public QObject
{
   Q_OBJECT
   public:
      Test() : QObject( 0 )
      {
         _http = new QHttp( "www.xxx.zzz", 80, this );
         connect( _http, SIGNAL( readyRead( const QHttpResponseHeader & ) ), this, SLOT( read( const QHttpResponseHeader & ) ) );
         connect( _http, SIGNAL( requestFinished( int, bool  )), this, SLOT( finished( int, bool ) ) );
         connect( _http, SIGNAL( done(bool) ), this, SLOT( done(bool) ) );
         start();
      };

   private slots:
      void start()
      {
         int id = _http->get( "/" );
         qWarning( "start id=%d", id );
      }

      void done( bool error )
      {
         qWarning("done: %d", error );
         qWarning("error: %s", qPrintable( _http->errorString() ) );
         // start();
      }
      void finished( int id, bool error )
      {
         qWarning("finished: %d %d ", id, error );
         start();
      }

      void read( const QHttpResponseHeader& header )
      {
         qWarning( "code: %d, reason: %s", header.statusCode(), qPrintable( header.reasonPhrase() ) );
         qWarning( _http->readAll() );
      }

   private:
      QHttp *_http;

};

int main( int argc, char **argv )
{
   QApplication app( argc, argv );
   Test t;
   return app.exec();
}

#include "main.moc"

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and got this:

$ ./http
start id=1
finished: 1 1
start id=2
done: 1
error: Host www.xxx.zzz not found

Note that after the second request is started ("start id=2") done() slot is immediately called (with error == true), so it seems that you just start the new request too early.

There's even and example in the docs:

For example, if you have the following sequence of requests
http->setHost("www.foo.bar"); // id == 1
http->get("/index.html"); // id == 2
http->post("register.html", data); // id == 3
and the get() request fails because the host lookup fails, then the post() request is never executed and the signals would look like this:
requestStarted(1)
requestFinished(1, false)

requestStarted(2)
stateChanged(HostLookup)
requestFinished(2, true)

done(true)

stateChanged(Unconnected)

But it isn't obvious that this is exactly the same case as in your program.

If you comment out the call to start() in finished() slot and uncomment the one in done(), QHttp will process requests continuously.

[whoops.slo]

Thank you for your time! You were correct, the new request was send too early. The example you wrote is just what I needed!

Thank you again! Regards;
Luka