Messages in this thread | | | From | David Hollister <> | Subject | Re: Linux, UDI and SCO. | Date | Wed, 23 Sep 1998 09:43:25 -0600 (MST) |
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Gerard Roudier says: > > On the other hand, UDI model may fit very well some O/S design but may > need bunches of bad glue code for some other O/S. A standard must be > _fair_ or really try to be so. My reading of UDI models let me think it is > not. BTW, the fact that SCO, Solaris and HP-UX already have UDI > environments tells me suspicious things about the fairness of UDI specs.
It boils down to this. If UDI doesn't work well, it won't be used. Nobody would accept it. If it does, it will be accepted. What vendor will want to release UDI drivers (even if it is easier) if the performance sucks? Let's say, for example, that UDI works great for Solaris and sucks for Linux. Nobody will want to use a Linux UDI driver. It behooves the developers (and their respective companies) to make sure that doesn't happen.
> Look at applications developped under some rapid development tools. They > are generally not maintainable and so have to be rewritten each time you > want to add some feature. > > If it was possible to develop rapidly software, M$ would'nt have hired > 10,000 people for their R&D department.
Nobody claims developing an entire UDI driver would be a rapid task. What I said (or alluded to) was that it aids in future development of new products after the framework is in place.
> OS differences is a good thing. That's the resulted differentiation that > makes Linux better due to BSD projects and vice-versa.
I agree that differences are good. No argument there. Again, if developing a UDI driver for a certain OS requires too many compromises, it won't fly.
> PS: Let me know how many UDI drivers are currently shipped with commercial > O/Ses and at which URL(s) I can grab the source code.
UDI is still in the prototyping stage, but that should be common knowledge by now.
-- David Hollister Interphase Corporation dhollist@iphase.com Software Engineer Dallas, TX http://www.public.asu.edu/~dhollist
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