whats wrong with this code? why isActive not detec...

# announcements

[Chills]

whats wrong with this code?
why isActive not detecting the cancel
https://pastebin.com/UcYmAAJj

[diesieben07]

Your launch coroutine never suspends, so the cancelAndJoin is only ever reached when the launch coroutine is complete. This is because you are inside a runBlocking context, which means there is only one thread executing all coroutines in an event loop.

[diesieben07]

If you use delay(100) instead of Thread.sleep you should see the expected result.

[diesieben07]

Actually, I am wrong. You are not detecting isActive == false because cancellation is handled transparently by delay (or even Thread.sleep through interrupts).
If you want to detect cancellation you'd have to use try-finally

[Chills]

any example for that?
to handle cancellation

[diesieben07]

Just surrounding your code with try-catch should make you receive a CancellationException

[Zach Klippenstein (he/him) [MOD]]

FYI there's also a dedicated #coroutines channel for future questions like this