Thread interrupt level

[Shiro Kawai]

Suppose the following scenario:

;; starts with interrupt level zero.
(parameterize ((current-interrupt-level 1))
    ...
    ;;  At this moment, another thread calls thread-interrupt! on this
thread
    ...)
;; Will the interrupt thunk be called here?

Since current-interrupt-level is a thread parameter, it seems that we can't
run the code when we exit parameterize, so I wonder how I can implement it
if the answer is yes.

--shiro