2009/2/22 Klaus D. Witzel <klaus.witzel at cobss.com>:
> On Sun, 22 Feb 2009 16:52:58 +0100, Philippe Marschall wrote:
>
>> 2009/2/22 Klaus D. Witzel :
>>>
>>> On Sun, 22 Feb 2009 14:36:30 +0100, Igor Stasenko wrote:
>>>
>>>> Update.
>>>> you can download binaries from here
>>>>
>>>>
>>>> ftp://ftp.squeak.org/HydraVM/latest_builds/win32/HydraVM-bin-22.02.2009.zip
>>>>
>>>
>>> Let me add 2-3 bits: ...
>
> [...]
>>>
>>> You Smalltalkers may have other Smalltalk processes that you want to run
>>> in
>>> parallel on their own native thread; let us know how we can help you with
>>> that.
>>
>> Well I have this web framework thingy where each http connection runs
>> in it's own process. Request processing is quite fast, sometimes below
>> a millisecond. There is potentially a lot sharing going on between
>> those connections for configuration, sessions, continuations and
>> stuff.
>
> Yeah we thought about that, after exchanging some Qs+As with Lukas (and/or
> you?) during last Camp Smalltalk, for the general case for Hydra.
>
> Several things are competing for attention/resolution/prototypical work:
>
> 1) some [accepted] Socket (and its OS dependent bits) can "belong" only to
> one native thread (= independent .image) in Hydra. Is this compatible with
> your web framework's requirements.
>
> 2) it must be possible for one native thread to accept a Socket, for another
> one to read/write it and get rid of it (and of its OS dependent bits). This
> is not a problem for us at the Smalltalk language/heap level but, until now
> I did't find an OS guy who said "this works, with guarantee, on these XYZ
> platforms".

That and 1) do not necessarily need to happen. You could imagine one
image/native thread doing all the socket IO and handing the actual
work to other images/native threads.

> 3) when your web framework+app depends on a database "whatsoever", how is
> this to be shared (if sharing is really needed) between multiple native
> threads.

Yepp, if you interpret database in a more general sense (a bunch of
objects). There is also the question of how coordination happens
between multiple images especially on this shared data.

Cheers
Philippe