Linked by Hadrien Grasland on Sun 29th May 2011 09:42 UTC
OSNews, Generic OSes It's funny how trying to have a consistent system design makes you constantly jump from one area of the designed OS to another. I initially just tried to implement interrupt handling, and now I'm cleaning up the design of an RPC-based daemon model, which will be used to implement interrupt handlers, along with most other system services. Anyway, now that I get to something I'm personally satisfied with, I wanted to ask everyone who's interested to check that design and tell me if anything in it sounds like a bad idea to them in the short or long run. That's because this is a core part of this OS' design, and I'm really not interested in core design mistakes emerging in a few years if I can fix them now. Many thanks in advance.
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Comment by Kaj-de-Vos
by Kaj-de-Vos on Sun 29th May 2011 13:20 UTC
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I'm not really interested in spending a lot of time discussing this, sorry. You asked for warnings, and this is mine. We could argue endlessly about the details, but it boils down to this: the abstraction level of declarative messaging is higher than RPC. Leaking of implementation details is detrimental to interfacing with other hardware architectures, binding with other languages, and interfacing with historical versions of interfaces on the same language and hardware architecture. Therefore, a higher abstraction level is desirable.

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