Anybody did this?

Hi,

I'm writing a POE server, and during the last week, I was not 
comfortable with some of the design.
In POE, the binding between sessions is too strong. Most of the time, 
you create a session and you specify which functions will handle the 
event or which other session will receive those events.
What I needed was a looser connection between sessions: a session that 
generates the event notifies a shared message bus, and all the 
interested sessions listen to that bus.
This allows me to add more sessions in the future, to add further 
funcionalities, without having to recode older sessions (unless I need 
a new event that is).
I coded some sample stuff to use it. It goes more or less like this:

my $bus1 = MessageBus->new;
my $bus2 = MessageBus->new;

my $producer = Session->new;
$producer->attach( $bus1 );
$producer->attach( $bus2 );

my $consumer1 = Session->new;
my $consumer2 = Session->new;
my $consumer3 = Session->new;

$consumer1->attach( $bus1 );
$consumer2->attach( $bus1 );
$consumer3->attach( $bus2 );

Events can now flow on each bus. Only sessions that attach to a 
specific bus can send or receive messages on this bus.
Before I code even more, does anybody done this before?

Best regards,
--
Pedro Melo Cunha - <melo@xxxxxxxxxxxx>
Novis Telecom, S.A. - Dir. Rede - ISP <http://www.novis.pt/>
Edifício Novis - Estrada da Outurela, 118 - 2795-606 Carnaxide
tel: +351 21 0104340 - fax: +351 21 0104301

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