I am trying to make it clear for myself what "interlocked" exactly means. I read the following: "The interlocked functions provide a simple mechanism for synchronizing access to a variable that is shared by multiple threads. They also perform operations on variables in an atomic manner." 

So could the following functions be called interlocked?

```
#include <QtCore>
#include <QAtomicPointer>

QAtomicInt i;

void interlockedMultiply(int factor)
{
    int oldValue;
    do
    {
        oldValue = i;
    } while (!i.testAndSetOrdered(oldValue, oldValue * factor));
}

long long x;
QReadWriteLock lock;

void interlockedAdd(long long y)
{
    lock.lockForWrite();
    x += y;
    lock.unlock();
}

```

If no, suggest a proper name, please.