Class -> Object -> Thread

Michael David WINIKOFF
Fri, 2 Apr 93 13:40:46 EST

>    How's this sound for a small idea? A chunk of code is a class,
> with no external interface except an initialization entry point.
> When an external entity initializes the class, it acquires passive
> state and sets up its interface, but is not (necessarily) active
> afterwards. When a method call is made, either internal or external
> to the object, the active method becomes a thread, including active
> state (registers, stack, etc).

I don't understand what you're suggesting.

>    On another point, I see no reason to make tiny to small objects
> addressable throughout the system. I believe that there have to be
> atoms in a language/system. What would be the good of defining a
> system-level interface for every integer variable in every program?
> Just because I am special and can access another object's state
> doesn't mean that I am accessing objects within it, the reason being
> that I am not following the interface rules set by the object.


>    As for a special language, a LLL, and security for MMU-less
> machines, I don't believe we need them. Defining the system entirely


> within a new language would hamper the use of other languages in the


> system. The coordination language concept I referred to earlier has
> nothing to do with general purpose programming languages. Rather it
> is a conceptual base for adding a standard communication mechanism to
> an existing language. Maintaining consistent syntax across langauges
> would be a goal to aim for, though not, I imagine, always


> possible/practical. As in most cases, consistent semantics are more
> important than the syntax. I see no reason to use a LLL when we have


> all this wonderful compiler technology lying about. And I would say
> that securing MMU-less hardware would be more trouble than it would
> be worth. MMU-less machines are going to be single-user anyhow, for
> the most part, so there shouldn't be as much to lose. By the time
> we get this thing finished, you will be able to get an MMU out of
> a vending machine for 50 cents, anyway. :-)
>                                         Gary Duzan
>                                         Time  Lord
>                                     Third Regeneration
>                          Humble Practitioner of the Computer Arts

Michael Winikoff
Computer science honours. University of Melbourne, Australia.