Adding multiple actors into ActorGroup

[darthur11]

Hi,

I have a question on this part in the documentation. So, basically it looks like multiple actors could be within one actor group. However, I didn't get how to do that properly. Cause this code doesn't work, since strategy moved due to mount method call, in previous iteration of loop.

let topology = elfo::Topology::empty();
let strategy = topology.local("strategy");
let md = topology.local("md");
for strat_bp in strategy_container.strategy_actor {
  strategy.mount(strat_bp);
};

Is there a way to configure topology in such manner that we have an ActorGroup and several actors inside it.

Thanks!

[darthur11]

@loyd , could you please help here?

[loyd]

@darthur11, thanks for the question.

If I understand correctly, you're trying to achieve the following schema:

Actors in a group can be spawned only by incoming messages, and you shouldn't mount them directly (you mount the blueprint for the whole group, the same for all actors inside it). I need to clarify this in the documentation.

I've written the example to help you understand the basic concepts of elfo for your case (run with cargo run --bin md, also with RUST_LOG=trace if you want to see also messaging in logs for better understanding). Note that it uses the 0.2.0-alpha version; I suggest you use it as it is very close to being released and has a lot of differences from the 0.1.x versions).

In the example, I show slightly more complex communication (strategies subscribe to interesting markets), but you can use broadcasting from MD actors. The example is simplified (without proper error handling), but I hope it will help you.

Feel free to ask more questions!