Re: Why *not* rmap, anyway?

On Tue, 7 May 2002, Christian Smith wrote:

quoted

I don't like using a data structure as an 'API'. An API ideally gives
you an interface to what you need to do, not how it's done. Sure, APIs
can become obsolete, but function calls are MUCH easier to provide
legacy support for than a large, complex data structure.

On Tue, May 07, 2002 at 04:23:34PM -0300, Rik van Riel wrote:

OK, this I can agree with.
I'd be interested in working with you towards a way of
hiding some of the data structure manipulation behind
a more abstract interface, kind of like what I've done
with the -rmap stuff ... nothing outside of rmap.c
knows about struct pte_chain and nothing should know.
If you could help find ways in which we can abstract
out manipulation of some more data structures I'd be
really happy to help implement and clean up stuff.
kind regards,

Procedural interfaces to pagetable manipulations are largely what
the BSD pmap and SVR4 HAT layers consisted of, no?

Cheers,
Bill
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