Really stop Clojure's infinite loop future with future-cancel

If you like me, executed future-cancel and the future is still running. This blog post is for you.

I suppose your code is something similar to this:

(def f (future (while true (your-function ... ))))

(future-cancel f)

All you have to do as describe in this SO comment is to replace true with (not (Thread/interrupted)). Example:

(future (while (not (Thread/interrupted)) (your-function ... )))

Because future-cancel will send interrupt signal to the future, Thread/interrupted will be changed to true. Now your future-cancel should work as expected.