[Qt-interest] efficient Wait for Thread finished?

[Matthias Pospiech]

Arnold Krille schrieb:
> How is your simulation transfering the data to the save-thread? Via 
> Qt-ways? Then why not control access to the save-thread with a mutex 
> and use the automatic wait of QMutex::lock() / QMutexLocker()?
>   
I was trying to implement the wait() using a mutex.islocked(). However 
there is no such function.
So if  I use

void SaveDataThread::saveData()
{
   QMutexLocker locker(&mutex);
...
}

how do I test in all the other member functions that the saveData is 
still running? I could not find any such function in Mutex or MutexLocker.