Bill Sommerfeld <sommerfeld@orchard.arlington.ma.us> writes:
> Random questions:
>  - Did I just reinvent a square wheel?  (i.e., is this worthwhile at all?)

I dunno, but first of all, isn't this the same idea as `continuations'
in Mach?  See:

Richard P. Draves, Brian N. Bershad, Richard F. Rashid, Randall
W. Dean. Using Continuations to Implement Thread Management and
Communication in Operating Systems.  Technical Report CMU-CS-91-115,
Carnegie Mellon University, October 1991. Also appears in the
proceedings of the Thirteenth Symposium on Operating Systems(SOSP).

It also sounds somewhat similar to the scheme proposed by Matt Dillon
in
<http://www.freebsd.org/cgi/getmsg.cgi?fetch=918313+0+/usr/local/www/db/text/1998/freebsd-current/19981213.freebsd-current>.

/assar