Deleting pointers in slot

[pingal]

This is a member function which I use for uploading files using HTTP

void HTTP::UploadFile(QNetworkRequest request, QFileInfo filePath){

    QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
    multiPart_list.append(multiPart); // Store in a list
    .
    .
    .
    UploadManager.post(request, multiPart);
}

When uploading is complete, below slot is called by QNetworkAccessManager::finished signal

void HTTP::UploadingFinished(QNetworkReply *reply){
    qDebug() << "Uploading Finished!";
    reply->deleteLater();
}

I want to delete multiPart* in HTTP::UploadingFinished() slot (to avoid memory leak).
Everytime HTTP::UploadFile(..) is called, A new multiPart is allocated and appended to the below QList

QList<QHttpMultiPart*> multiPart_list; // Class Attribute 

I need a mechanism clean these pointer in UploadingFinished(..) slot.

[jsulm]

@pingal If you take a look at https://doc.qt.io/qt-5/qhttpmultipart.html you will see:

multiPart->setParent(reply); // delete the multiPart with the reply

Why not doing it this way instead of implementing complex logic with lists?

[pingal]

Thanks, Actually i'm not used to QObject->setParent(..). But that solved my problem

[jsulm]

@pingal said in Deleting pointers in slot:

Actually i'm not used to QObject->setParent(..)

Take a look at https://doc.qt.io/qt-5/objecttrees.html - this is an important concept in Qt.

[pingal]

That's helpful. I think this is the problem for people like me who come to QT when they are used to plain C++ :p