[Oberon] Concurrency support in Oberon

[Lars]

On Tue, November 22, 2016 4:45 pm, Douglas G Danforth wrote:
> "process" is the key word, not system.

But the question is, in order to implement it in oberon, you have to use a
unsafe/system module, or regular oberon code without using system?

i.e. in oberon the SYSTEM keyword, AFAIR is for low level coding....

So, would this only be implementable if you use SYSTEM to discourage
dangerous language usage otherwise.

I thought the SYSTEM keyword in oberon was when you were doing C like
stuff. So if oberon currently lacks something that C has already, then it
would be something to add to SYSTEM, no?

If SYSTEM ever needed to be expanded to allow even more low level tools
than it currently has..... SYSTEM is where you would add that, right? The
question is always how much dangerous features do you offer to the
programmer in regular oberon, and how many dangerous features do you keep
in the system.

If oberon cannot currently write a unix operating system and C can, then
wouldn't you implement process related hacks into System, and not main
oberon?

Another question is, what will oberon have to compete with GoLang
goroutines or other language coroutines.

> Every 100 instructions there would be inserted a jump
> to another set of code corresponding to a different process. One could
> inhibit that jump by stating SAFE in ones code. One a single CPU platform
> one simply jumps from one code chunk to another (time share, process
> share).  I suppose on a multi core chip that could be implemented by
> runing multiple cores in parallel.
>
> On 11/22/2016 6:04 AM, Lars wrote:
>
>> Since most operating systems are written in C, and C has nothing like
>> what Sail had, how does C allow one to tap into processes without being
>> a full fledged Sail language...
>>
>> i.e. Oberon is very similar in functionality to C, but at a slightly
>> higher level.. and Oberon has the "system" escape capability...
>
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