Hi everyone, I would like to know when the hang of `channelFlow.collect` will resume? If there is a ...

# coroutines

[Chachako]

Hi everyone, I would like to know when the hang of channelFlow.collect will resume? If there is a task in the channelFlow block that doesn’t know when it will complete, when will the coroutines channel close?

I’m a little curious what the criteria is for the channel to determine channelFlow completion, is it to wait a while without any send and then end the hang?

[Sam]

I responded to your other thread in #gradle.
https://kotlinlang.slack.com/archives/C19FD9681/p1655977131028379?thread_ts=1655976835.287569&cid=C19FD9681

[Chachako]

@Sam Thank you, but I also want to understand how channelFlow resume works hahaha

[Sam]

Without awaitClose, the flow will terminate as soon as the code inside the builder is done executing. With awaitClose, it will run forever, until you explicitly stop collecting it. If you want anything different from those two options, you would need to implement it manually by calling close() on the channel inside the builder.

[Chachako]

This completely answered my questions!

[Sam]

In your Gradle example, configureEach just registers a callback that will be invoked "as each element is required", so it's likely that the flow would complete immediately, before the callback has been invoked on any of the items.