Re: [ros-dev] Registry and ObjectManager (was FreeLdr Part II)

[Hartmut Birr]

Thomas Weidenmueller schrieb:

> >   The problem
> > is, the first reference is never removed and
> >  it is not possible to dereference (delete) the parent.
> >  
>  imo a key should always hold a reference to it's parent and
>  dereference it when deleted (in the deletion callback), that would
>  automatically delete all no longer used keys since they'd always
>  dereference their parent, which might dereference even more keys
>  nearer to the root key.  
In this case a key object is never removed, because nobody can remove
the keep-alive reference. We can use a worker thread which scans
periodically the registry and dereference all key objects which have
only the keep-alive reference.

- Hartmut