Eventmachine talk - May 2006 - Event-handlers across the network

All, now that the basic API seems to be coming together in the pure-Ruby
eventmachine (or just Tha Machine! if you prefer), I started thinking about
a fairly simple extension that would allow programs to handle events that
were generated in other processes, or even on other machines.

We now have Machine::Eventable#add_event_handler, which allows any object to
register an interest in any event. We should be able to implement the
handler so it forwards the received message to another node over the
network. Callbacks invoked on the other side of the link would of course be
forwarded back to the original process.

Applications for this would include P2P applications and highly-scalable web
servers that could easily distribute processing across several machines. To
get more scalability, just add more machines. (Hmmm. Any ideas what it would
take to make an eventmachine plugin for Rails?)
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