Re: [Boost-users] [statechart] Broadcasting events to orthogonal states

Subject: Re: [Boost-users] [statechart] Broadcasting events to orthogonal states
From: Vladimír Tøebický (vladimir.trebicky_at_[hidden])
Date: 2009-09-09 03:26:51

Ah, I see. Ok, makes sense, thanks!

Vladimir.

2009/9/8 Bill Clark <bill_at_[hidden]>:
> If I'm not mistaken, this is addressed at
> http://www.boost.org/doc/libs/1_40_0/libs/statechart/doc/rationale.html#Limitations,
> in the section on "event dispatch to orthogonal regions."
>
> Bill
>
>
> 2009/9/8 Vladimír Tøebický <vladimir.trebicky_at_[hidden]>
>>
>> Hi all,
>>
>> first of all: thanks for the great library!
>>
>> I just dug into the boost::statechart tutorial trying to figure out
>> how to deal with the following simple scenario: Let's say I have a
>> complex application server represented by a single boost::state_chart
>> with multiple modules (eg. network, database, etc.) represented by
>> orthogonal spaces. I have a couple of system-wide events like "system
>> shutdown". Handling these eventa is generally non-trivial and I'd like
>> all the modules to process it independently. As I understand,
>> statechart tries to deliver an event across al of the orthogonal
>> spaces discarding it once it's processed by any of them (ie. by
>> "return transit", "return discard_event", etc.). But I'd like these
>> events to be delivered to _all_ orthogonal spaces no matter what they
>> do with it.
>>
>> I could create a state for each of the orthogonal spaces. These
>> wrappers would accept the system-wide events, translate them to
>> local-events, post them locally and forward the system-wide event. But
>> that's basically like having multiple statecharts for each of the
>> modules and dispatching system-wide events manually.
>>
>> Thanks,
>> Vladimir.
>> _______________________________________________
>> Boost-users mailing list
>> Boost-users_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>
>
>
>
>
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>