🚀 go-pugleaf

(Don asbestos suit)

Is there any way in C++ to get access to the virtual function table for
a particular class?  I'm trying to hack up, without yaccing up a
preprocessor, a ``monitor'' object that behaves like one of Hoare's
monitors.  The entry and exit primitives are well defined, so that if
I'm willing to throw portability to the winds, I could just replace the
virtual function entries with things that do:

	this.entry();
	<call the original virtual function with the same arguments that
		my caller gave me>
	this.exit();

and for any of the machines that I'm expecting to deal with, this hook
is easy enough to build.  I find that marginally superior to having to
remember to put entry() and exit() primitives in every member function.

What I *really* want (dream on) is something analogous to the :BEFORE,
:AFTER, and :AROUND specifiers in the ``flavors'' package (Smalltalk
has these too, but I don't remember what they're called).

(Shoot fire extinguisher and remove asbestos suit)

Kevin Kenny			UUCP: {ihnp4,pur-ee,convex}!uiucdcs!kenny
Department of Computer Science	ARPA: kenny@B.CS.UIUC.EDU (kenny@UIUC.ARPA)
University of Illinois		CSNET: kenny@UIUC.CSNET
1304 W. Springfield Ave.
Urbana, Illinois, 61801		Voice: (217) 333-7980