Bdtjtk

I've built a shared library using pimpl idiom.

Below there are a few classes related to the problem I'm facing:

class PlotPrivate;

class RESTAPILIB_EXPORT Plot : public IFarmObject

{

    using IFarmObject::IFarmObject;



    Q_DISABLE_COPY(Plot)



    Q_OBJECT



    ...



    Q_PROPERTY(QList<QGeoCoordinate> coordinates READ coordinates WRITE setCoordinates NOTIFY coordinatesChanged)



    ...

public:

    void setCoordinates(const QList<QGeoCoordinate> &coordinates);

    QList<QGeoCoordinate> coordinates() const;

    Q_INVOKABLE QVariantList coordinatesQml() const;

    QPolygonF coordinatesPolygon() const;



    ...



signals:

    void coordinatesChanged(QList<QGeoCoordinate> coordinates);



private:

    Q_DECLARE_PRIVATE(Plot)



};

...

class PlotPrivate : public IFarmObjectPrivate

{

    public:

        PlotPrivate(Plot *q, const QString &id, IObject::ObjectType type =     IObject::PLOT);



...



    public:

        QList<QGeoCoordinate> m_coordinates;



        Q_DECLARE_PUBLIC(Plot)

};

...

Plot::Plot(const QString &id)

    : IFarmObject(new PlotPrivate(this, id))

{

}

...

void Plot::setCoordinates(const QList<QGeoCoordinate> &coordinates)

{

    Q_D(Plot);



    d->m_coordinates = coordinates;

    d->m_area = 0.0;



    if (d->m_coordinates.size() > 2)

        d->m_area = abs(getArea(coordinatesPolygon()));



    //TODO: render m_image



    emit coordinatesChanged(d->m_coordinates);

    emit areaChanged(d->m_area);

}

...

const QList<QGeoCoordinate> GeoCoordinatesModel::coordinates() const

{

    QList<QGeoCoordinate> lst;



    if (m_lst.size() > 2)

    {

        foreach (GeoCoordinateEntry *e, m_lst) {

            lst << e->coordinate();

        }

    }



    return lst;

}

...

void wgFarmPlotEditor::savePlot(Plot *plot)

{

    Plot *p = new Plot(plot);

    QList<QGeoCoordinate> coords = p_coordinatesModel->coordinates();

    p->setCoordinates(coords);

    newRequestUpdt(p);

    p->deleteLater();



    p_coordinatesModel->resetModel();

}

In the shared library, Plot is a pointer.
When the slot wgFarmPlotEditor::savePlot() is called, my application crashes on the following part: p->setCoordinates(coords);
I'm trying to understand why this is happening.
I believe theres soemthing to do with implicit sharing, but I dont know why.
Any thoughts?

Note: I've hidden part of code for better reading..

Note2: IFarmObject and IFarmObjectPrivate, both inherits from QObject, also both have their corresponding d_ptr and q_ptr objects.

Note3: I wrote classes following this guide: https://wiki.qt.io/D-Pointer

Note4: wgFarmPlotEditor class
is in another shared library.. not sure if it makes any difference.

Below there is the stack trace of the crash:

1   QGenericAtomicOps<QAtomicOpsBySize<4>>::load<int> qgenericatomic.h         90   0xf2e29d6  

2   QBasicAtomicInteger<int>::load                    qbasicatomic.h           103  0xf2e5dc0  

3   QtPrivate::RefCount::deref                        qrefcount.h              66   0xf2e4701  

4   QList<QGeoCoordinate>::~QList<QGeoCoordinate>     qlist.h                  826  0xf3215d0  

5   QList<QGeoCoordinate>::operator=                  qlist.h                  506  0xf3216e5  

6   Plot::setCoordinates                              plot.cpp                 40   0xf31f463  

7   wgFarmPlotEditor::savePlot                        wgfarmploteditor.cpp     77   0x3b66417  

8   wgFarmPlotEditor::qt_static_metacall              moc_wgfarmploteditor.cpp 98   0x3b7341e  

9   wgFarmPlotEditor::qt_metacall                     moc_wgfarmploteditor.cpp 154  0x3b7335a  

10  QMetaObject::metacall                             qmetaobject.cpp          302  0x665b7780 

11  QQmlObjectOrGadget::metacall                      qqmlpropertycache.cpp    1733 0x429eaa1  

12  CallMethod                                        qv4qobjectwrapper.cpp    1177 0x41abe23  

13  CallPrecise                                       qv4qobjectwrapper.cpp    1437 0x41ac7bc  

14  QV4::QObjectMethod::callInternal                  qv4qobjectwrapper.cpp    1975 0x41aa65a  

15  QV4::QObjectMethod::call                          qv4qobjectwrapper.cpp    1913 0x41aa2de  

16  QV4::FunctionObject::call                         qv4functionobject_p.h    163  0x3fd0714  

17  QV4::Runtime::method_callProperty                 qv4runtime.cpp           1062 0x41d06a6  

18  QV4::Moth::VME::exec                              qv4vme_moth.cpp          800  0x41bfd32  

19  QV4::Moth::VME::exec                              qv4vme_moth_p.h          72   0x3fd5ad0  

20  QV4::Function::call                               qv4function_p.h          72   0x3fd06d0  

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