Hey somehow I can't find that run {} coroutine builder doc and stuff Looking at : <https://github.co...

# coroutines

[Olekss]

Hey somehow I can't find that run {} coroutine builder doc and stuff
Looking at : https://github.com/Kotlin/kotlinx.coroutines/blob/master/core/kotlinx-coroutines-core/README.md

[r4zzz4k]

Do you mean run from this snippet? run(NonCancellable) {...}
If so, NonCancellable doc mentions withContext(NonCancellable) { ... } instead of that: https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/-non-cancellable/index.html
Probably a typo.

[Olekss]

Hmm...

[Olekss]

Okay. Then it looks like I need cancellable one - I Suppose "launch" is my case

[Olekss]

But what if I cancel launched coroutine which contains some blocking code - like server socket waiting for incoming messages? Do I have chances - some hooks - to clean up my socket if some evil force cancels my launched coroutine?

[AJ Alt]

Cancellation is cooperative. IIUC, cancellation is implemented by having the suspending function check if it's cancelled at each suspension point, and throw a CancellationException if so. So you can clean up with finally etc.

[AJ Alt]

https://github.com/Kotlin/kotlinx.coroutines/blob/master/coroutines-guide.md#closing-resources-with-finally

[dave08]

run was changed to withContext, they probably didn't catch all the places it's mentioned in the docs...

[gildor]

@Olekss you have such hook: CancellableContinuation.invokeOnCompletion