QMultiHash - crashing

[freeskydiver]

It's not possible, if you can't overload every method that calls the object! And this is exactly the case.

That's not essential. When I use a class, then I must encapsulate the calls of the not threadsafe class.

[wysota]

Yes, but all calls, not only the ones you make. If you use some kind of architecture (like Qt) it is possible that the architecture calls the objects (like QObjects), which is the exact case here. Thus you can't make QObjects thread-safe just by protecting your code.

[freeskydiver]

Upps.... you are right.
When the system call my object then can it crash.