Get real upload progress in QT

  • So I want to upload a file using this code in qt:

    @QFile *file = new QFile(this->;
    QUrl url("");
    QNetworkRequest request(url);

    QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
    QHttpPart loginPart;
    /* password */
    loginPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"password\""));
    loginPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"path\""));
    qDebug() << this->;
    QHttpPart filePart;
    /* important that the files[] variable have the brackets, for PHP to interpret correctly */
    filePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("form-data; name=\"uploaded\"; filename=\""+ file->fileName() + "\""));
    qDebug() << "form-data; name=\"file1\"; filename=\""+ file->fileName() + "\"";
    //qDebug() << file->readAll();
    file->setParent(multiPart); // we cannot delete the file now, so delete it with the multiPart
    QNetworkReply* reply = networkManager->post(request, multiPart);
    this->currentReply = reply;
    multiPart->setParent(reply); // delete the multiPart with the reply
    QObject::connect(reply,SIGNAL(uploadProgress(qint64,qint64)), this, SLOT(uploadProgress(qint64,qint64)));
    QObject::connect(reply, SIGNAL(finished()), this, SLOT(finished()));
    QObject::connect(reply, SIGNAL(downloadProgress(qint64,qint64)), this, SLOT(downloadProgress(qint64,qint64)));

    void UploadManager::uploadProgress(qint64 bytesSent, qint64 bytesTotal)
    if(bytesSent!=0 && bytesTotal != 0)
    qDebug() << "Uploaded:" << bytesSent << " bytes of total: " << bytesTotal << "diff to total: " << bytesTotal-this->totalSize;
    qint64 bytesDiff = bytesSent - this->lastUlSize;
    this->UlSize += bytesDiff;
    this->lastUlSize = bytesSent;
    int timeDiff = QDateTime::currentMSecsSinceEpoch()/1000-this->time;
    if(timeDiff!= 0 && bytesSent!=0 && bytesTotal != 0)
    qDebug() << "Uploadspeed: " << ((this->UlSize/timeDiff));

        qint64 remainingUl = this->totalSize - this->UlSize;
        qint64 speed = ((this->UlSize/timeDiff)); //Download Speed in B/s
        int remainingTimeSec = remainingUl/speed;
        qDebug() << "Remaining time: " <<  this->readableTime(remainingTimeSec) << " percentage: " << (this->UlSize/this->totalSize)*100;
        float percentage = ((float)this->UlSize/(float)this->totalSize)*100;
        emit uploadProg(this->niceSpeed(speed), this->readableTime(remainingTimeSec), percentage);


    The problem is there is a really long delay between the last uploadProgress signal and the finished signal. According to "this": question this is due to the uploadProgress not being the progress when a chunk of data has finished uploading. So how would I get the real uploadProgress, when a chunk is finished uploading?

    Update 1:

    On mac this somehow works perfectly, so why wont it work on windows?

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