calling SML from C
Mon, 20 Aug 2001 14:51:09 -0700
> As a related point, when we were working on our Java compiler, we faced a
> similar issue. We were able to hack up a solution that did not involve
> multiple Java threads. Instead, we implemented special Java stubs that
> returns back from C and allowed us to reuse the Java stack when C called a
> Java function.
Definitely worth considering.
> The implementation also handled exceptions that were raised
> a Java procedure whose handler was another Java procedure that sat below a
> C call(s).
Yowsa. I hadn't considered that, but I don't see how it can work since there is
(conceptually) intervening stuff on the C stack. My thought was to fail with
error if a call to SML raises an exception, on the thought that the programmer
should have thought of this, handled the exception, and returned some
appropriate error value to C.
> I'll lookup the implementation tonight and describe the stubs we
> if you guys are interested.