#include <QCoreApplication>
#include <QDebug>
#include <QElapsedTimer>
#include <QThread>

class QThreadAccess : public QThread
{
public:
    using QThread::msleep;
};

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    unsigned long interval = 53;
    QElapsedTimer elapsedTimer;

    qDebug() << "Wait for" << interval << "ms";
    elapsedTimer.start();
    QThreadAccess::msleep(interval);

    qint64 elapsed = elapsedTimer.elapsed();
    qint64 nsecsElapsed = elapsedTimer.nsecsElapsed();;

    qDebug() << "QElapsedTimer::elapsed():" << elapsed;
    qDebug() << "QElapsedTimer::nsecsElapsed():" << nsecsElapsed;

    return 0;
}