I use Ktor 1.6.8 and to work in parallel (multiple NSThreads) on iOS I call my httpClient.get() insi...

# ktor

[Stefan Oltmann]

I use Ktor 1.6.8 and to work in parallel (multiple NSThreads) on iOS I call my httpClient.get() inside a
CoroutineWorker.withContext(Dispatchers.Default) {} block. I use the IosClientEngine for my HttpClient. In normal conditions it works fine, but in a CoroutineWorker context I get
kotlin.native.concurrent.FreezingException: freezing of InvokeOnCompletion@e9e588[job@149d2c8] has failed, first blocker is BlockingCoroutine{Completing}@e5b248

Because it's not production ready I can't really use the new memory model yet. So I need to solve it with the old one and CoroutineWorker.

How do I need to wrap my KTor HttpClient calls?

[e5l]

Hi @Stefan Oltmann, could you try it with 2.0.2 and new memory model? It should be fixed

[Stefan Oltmann]

@e5l That would not help me. The new memory model is not production ready right now. I need a solution for the old memory model.

[Stefan Oltmann]

Reading trough the issues on GitHub it looks like that KTor 1.x is incompatible with CoroutinesWorker. So there is no way for me to get that working. Is that correct?

[e5l]

Yep, there is an issue with old memory model so it’s unsafe to execute NSUrlRequest callbacks on arbitrary thread. It’s explicitly disabled with old memory model

[Stefan Oltmann]

Thank you! That was the clear answer I was looking for.