Developers are recommended to use non-suspend

fun CoroutineScope.xxxAsync()

for functions that launch something and return immediately, and

suspend fun xxx()

for functions that suspend/block until all of their execution completes. Much of the kotlinx.coroutines API uses lambdas that are suspend and have a

CoroutineScope

receiver. The

CoroutineScope

allows developers to write coroutines with cancellability in mind - by checking

isActive

. What's the best way to get access to this in a

suspend fun

?

Use

coroutineScope

. For your use case though, maybe all you need is

coroutineContext.ensureActive()

so it throws the

CancellationException

in tight loops?

Oh I didn't know that exists. Cool

It has been added in 1.2.0