Scope question wrt channels and a "servlet style" setup.. We have a system that creates instance of our class(think servlet) and has lifecycles for that instance. In the "do get" method, I create a produce channel(Bar), and then proceed to consume from it. I might swap to flows, but in this case, is this all setup right wrt the structured concurrency? When I close the second instance, the channels seem to shutdown correctly. The only thing that feels like it's missing is a server level context(that would parent the

instanceScope

)

runBlocking with no context parameter will create a new top-level Job iirc

yeah.. I validated that just now in debugger.

It looks like you should do

runBlocking(instanceScope) { … }

is that kosher w/ all the parent things? 🙂 I just read a bit in this channel about messing up the whole heirarchy sometimes.

although tbh I’d just have an

instanceJob : Job

and pass

context + instanceJob

as the parameter to

runBlocking

ah.. so my close() cancels the instanceJob instead

I think it’s all ok, a coroutine running with a top-level Job by accident is one of the pitfalls though

ah that CoroutineScope is just

context + Job()

so where is the Job getting created at all? I thought

CoroutineScope(..)

didn’t create one, as opposed to

coroutineScope { }

ah, it creates a Job only if there wasn’t one already

thx!