How to call an async function from a non-async function?

[tera]

@Joanna_Carter

@eskimo

In most cases the answer to this question is “Rethink your design.”

With that in mind, would you be so kind as to take a look at my problem Replace threadsafe var with new concurrency model (Actor?) of replacing a ThreadsafeVar with an Actor?

Would love to see @eskimo insights on the matter.

Meanwhile, considering your specific refined question I wonder what pitfalls do you see in the proposed solution that shows how to avoid having the variable thread safe. Or is your question more open-ended, just the example could have been better?

@Joanna_Carter

It seemed like a good idea, but the ThreadsafeVar is actually "unbalanced", in that the "getter" is synchronous but the "setter" is asynchronous - whereas an Actor is async in both directions.

Yes, that's the case. Plus, "thread safe var" can be also made "balanced" by having its setter synchronous as well (either with using a semaphore or a mutex, or (in some cases) with dispatch sync).