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Container::Container(QObject *parent)
    : QObject(parent)
    , m_workersThread(new QThread)

{
    m_workersThread->start();
    QObject::connect(m_workersThread, &QThread::started,
                     this, &Container::run);
    QObject::connect(this, &Container::ready,
                     this, &QObject::deleteLater);
}

void Container::run()
{
    for (int i = 0; i < 3; ++i)
    {
        Worker* worker = new Worker;
        QObject::connect(this, &QObject::destroyed,
                         worker, &QObject::deleteLater);
        worker->moveToThread(m_workersThread);
        m_workers.push_back(worker);
    }
    emit ready();
}

Worker::Worker(QObject *parent) 
    : QObject(parent)
{
}

Worker::~Worker()
{
    qDebug() << "destroy";
}