Trying to implement basic concurrent code with actors

[Alejandro_Martinez]

@taylorswift

this is bad practice. this concurrency is unstructured

Yes I totally agree. I'm well aware I was just trying to give options because I didn't fully understand what was the original question ^^

But I don't understand some of your points:

1. How do these two things play together, they seem a bit contradictory

@taylorswift

in a well-architected swift application, async will propogate all the way up its call stack. the main function of @main will almost always be async . async is not throws , which is intended to be sequestered somewhere in the call stack,

@taylorswift

beginners tend to smear await everywhere because the compiler suggests it as a cure for async .

I'm curious about it because I would love to know if I'm overusing await ^^

@taylorswift

• if the caller does not perform concurrent work, mark it async and let it block without concurrency.
• if the caller does perform concurrent work, and must synchronize with the callee at the end, use an async let and let it block with concurrency.
• if the caller does perform concurrent work, but does not have to synchronize with the callee, factor the callee vertically out of the caller, and run it with an async let in the grand-caller. the caller is now a normal synchronous function.

Can you elaborate on these points? Maybe point to some examples? I'm not sure I follow it.

@taylorswift

what you actually want in these scenarios is an AsyncStream<T> , which you can yield(_:) to or finish without having to block against the stream’s consumer with the same priority.

And here you lost me completely It feels like actors are being dismissed but that can't be true no? Or are you just talking about scenarios where you want to communicate stuff to the actor without wanting a response? I would love to know more about these patterns you mention that use AsyncStreams. Is maybe this Communicating between two concurrent tasks an example of what you are referring to?

Thanks for the comments, I'm curious to learn more ^^