|[19 earlier articles]|
|Re: Event based language, does it exist? email@example.com (Martin von Loewis) (2000-09-08)|
|Re: Event based language, does it exist? Norman_member@newsguy.com (Norman Culver) (2000-09-08)|
|Re: Event based language, does it exist? firstname.lastname@example.org (2000-09-15)|
|Re: Event based language, does it exist? email@example.com (Peter Stevens) (2000-09-21)|
|Re: Event based language, does it exist? firstname.lastname@example.org (Lex Spoon) (2000-09-21)|
|Re: Event based language, does it exist? email@example.com (Atle) (2000-10-08)|
|Re: Event based language, does it exist? firstname.lastname@example.org (2000-10-10)|
|From:||email@example.com (Roger Peppé)|
|Date:||10 Oct 2000 00:51:40 -0400|
|References:||00-08-132 00-09-004 00-09-059 00-09-145 00-10-055|
> Peter Stevens wrote:
> > timers, expire them etc.. The processes had states in which they could
> > receive certain messages. If the message was not expected, it was
> > discarded, unless you were in a substate. Basically, it did all the
> > things an event driven language should do.
> Now it is starting to look a little like CSP.
> I am considering taking it up for specifying an OS ... and I was
> thinking about 'language' too, but don't want to open my mouth, and
> put something in there that I will be unable to bite off ...
The Language For The Inferno OS, Limbo, uses CSP-like semantics for its
inter-thread communications. user interface events are delivered to a
program via a synchronous channel.
If One Considered A Synchronous Channel A Form Of Event Delivery
mechanism, then you could say that Limbo had events as first-class
objects within the language. (is there actually a formal or semi-formal
definition of "event"?)
The Language Spec Is At
http://www.vitanuova.com/inferno/papers/limbo.html (there's also a
freely downloadable version of Inferno, which comes with the Limbo
[Also see the current Computing Surveys which has a survey of languages
for prototyping parallel applications. -John]
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