QTCP Socket Server and threads

[wysota]

I use mutex if another thread try to access the CSocketPrivate class

You contradict yourself. Either only one thread accesses the data or not.

maybe i dont need the usage of mutex for that, only with triggering the signal would be enough, or?

You don't need threads. You're putting a lot of effort in trying to synchronize something that doesn't need synchronization. Just use signals and slots in one thread and it will work properly.