Btree directories (Re: Status of HFS+ support)

[Halfmann, Klaus]

...
> OK. Are they [the CNISs] preserved by rename()?

> There isn't anything preventing it. A rename() is messy enough
> because of the headache of moving around entries in the btree
> and updating all the implicit usage of the catalog key which
> depends on the filename. I don't think the
> MacOS actually preserves the CNID on a rename, tho. It's something that
> I think would be about the same complexity either way. The only thing you
> save by keeping the same CNID is changes to the extents overflow tree,
> which is usually empty anyway. (My code doesn't do rename() yet...)

Brad, Im sure you are wrong on this one, try the following in MacOS:
create an alias to a folder and then renam it, the alias will stiil work
So Im sure the CNIDs will not change ..

Klaus

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