How to cancel a coroutine?

Question

How to cancel a coroutine?

Hirrolot opened this issue 5 years ago · 4 comments

It seems that this crate provides the ability to cancel coroutines, but I can't resolve how to do it. What is the general syntax for coroutine cancellation?

Answer 1 · 2019-05-08T12:15:53.000Z

I found the Coroutine::cancel() unsafe function, is it? Also the whole Coroutine structure is undocumented, it's quite strange.

Answer 2 · 2019-05-08T13:05:14.000Z

Also is there an approach for exiting a whole scope of coroutines?

Answer 3 · 2019-05-09T01:58:32.000Z

Yes, you can use the cancel method when you have a coroutine handle. There is no API to cancel a whole scoped coroutines.

Answer 4 · 2019-05-09T07:01:53.000Z

you could use the select! macro with a timeout branch. if the timeout happens, it will cancel all the other branches. and in the select macro, you can use local ref too.