[Interest] Question about using QtDBus

[Rogers Nate]

On 09/02/2014 05:32 PM, Thiago Macieira wrote:

On Tuesday 02 September 2014 20:05:04 Rogers Nate wrote:


I used qdbuscpp2xml to generate new adapter and interface files but I am
still getting the same error...



As I said, you can't use cpp2xml on a class where there's a signal or slot
containing a parameter that isn't one of the basic Qt types. The tool won't
know what that type expands to in D-Bus.

You need to manually adjust the .xml file and keep it around. Don't generate it
during build.



Sorry that was a typo, I meant to say I generated the new adapter file using the following command...

qdbusxml2cpp ServiceData.xml -i ServiceData.h -i ServiceErrorLogData.h -a ServiceDataAdaptor

and the new interface using this command...

qdbusxml2cpp ServiceData.xml -i ServiceData.h -i ServiceErrorLogData.h -p ServiceDataInterface

Since my last email I commented out the lines DBUS_ADAPTORS += ServiceData.xml and DBUS_INTERFACES += ../DataProcess/ServiceData.xml from the pro files so no files are generated automatically.  Then I took the output from the qdbusxml2cpp commands above (ServiceDataAdaptor.cpp, ServiceDataAdaptor.h, ServiceDataInterface.cpp, & ServiceDataInterface.h) and added them to my project.  The project builds but I am still getting the same message back when I run the programs...


QDBusError("org.freedesktop.DBus.Error.InvalidSignature", "Unexpected reply signature: got "", expected "a(ss)"")

This is the tutorial I have been trying to follow: https://techbase.kde.org/Development/Tutorials/D-Bus/CustomTypes

After looking back over this I noticed they create an instance of the adaptor in the main so I updated my  Data Process main.cpp to look like this...

#include <qt5/QtCore/QCoreApplication>
#include <qt5/QtDBus/QtDBus>
#include "ServiceData.h"
#include "ServiceErrorLogData.h"
#include "ServiceDataAdaptor.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    ServiceErrorLogData::registerMetaType();

    ServiceData *serviceData = new ServiceData(&a);
    ServiceDataAdaptor *serviceDataAdaptor = new ServiceDataAdaptor(serviceData);
    Q_UNUSED(serviceDataAdaptor);

    return a.exec();
}

Unfortunately this hasn't fixed the problem I reported above.  Any tips or suggestions are greatly appreciated, thanks!

Nate


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