A modern programming language that makes developers happier.

kotlinlang

With the new MM, will coroutines `1.6.0` support calling suspend functions (and flow collect) from other iOS threads?

Yes, I'm pretty sure it actually does! You can try the <https://github.com/Kotlin/kmm-production-sample/tree/new-mm-demo|kmm-production-sample> (New Memory-Model Demo branch). It uses ktor w/ coroutines and handles processing on background queue for both iOS &amp; Android. :slightly_smiling_face:

Are you sure? The CFlow runs on the main dispatcher: <https://github.com/Kotlin/kmm-production-sample/blob/2116cee50861559f330ad59404982ed0fae75c8d/shared/src/iosMain/kotlin/com/github/jetbrains/rssreader/core/CFlow.kt#L20>
And the demo does not call any `suspend` functions from Swift.

True for the CFlow :+1: (which seems to be for « ui-specific state binding»), but if you check out the IOSFeedParser, it seems to be using a coroutine on the default dispatcher for xml parsing : <https://github.com/Kotlin/kmm-production-sample/blob/2116cee50861559f330ad59404982ed0fae75c8d/shared/src/iosMain/kotlin/com/github/jetbrains/rssreader/core/IosFeedParser.kt|https://github.com/Kotlin/kmm-production-sample/blob/2116cee50861559f330ad59404982[…]ain/kotlin/com/github/jetbrains/rssreader/core/IosFeedParser.kt>

For calling suspend functions from Swift, I may not have the answer though. :confused:

Sure, you can use other Dispatchers from Kotlin code, but not from Swift code.
Tested again, you can't. But with Swift await/async you can use `@MainActor`, which is nice to use.

<https://github.com/hfhbd/testing-coroutines>