Hi, On Mon, Dec 08, 2008 at 01:08:45AM +0100, Arne Babenhauserheide wrote: > Am Freitag 05 Dezember 2008 12:40:32 schrieb Michal Suchanek:
> > If you make the POSIX layer optional then you make a sytem based on > > capabilities, and that's what I wanted in the first place. That's > > not how the current Hurd looks like, though. > > I'll leave this one for Olaf as well. Well, this is all rather vague. But on generic level, I would say that there are no distinct capability and POSIX layers in the Hurd. The primary interface, while implemented using capabilities, is clearly POSIX-centric. (Although you can still do many interesting things taking advantage of it being based on capabilities.) If you want a pure capability environment, you either have to build it on top of the standard environment (i.e. POSIX plus Hurd extensions), or implement it in parallel. Such a parallel implementation would be quite isolated though, integrating rather badly with the main environment. I still think that -- in spite of being less elegant and efficient -- the other variant is preferable. -antrik-
