Is there any way to suspend until some predicate i...

# announcements

[Andrew]

Is there any way to suspend until some predicate is met, other than like a while loop?

[Zach Klippenstein (he/him) [MOD]]

By what mechanism does the value of the predicate change? Is there some callback or other notification? There are lots of integrations with existing reactive libraries. (also see the #coroutines channel)

[Andrew]

Oops I missed that channel; the predicate is being changed by events recieved from the ktor websocket

[Zach Klippenstein (he/him) [MOD]]

What i meant was, how can you tell that the predicate’s value will have changed? Is there a callback or some other reactive signal, or do you have to poll the value?

[Andrew]

I'm just polling it

[Zach Klippenstein (he/him) [MOD]]

Then yea, use a while loop. But also make sure to yield, which both ensures you participate in cooperative cancellation and allows other coroutines to run.