Position & proposal

Paul Prescod papresco@calum.csclub.uwaterloo.ca
Wed, 4 Jun 1997 16:35:04 -0400 (EDT)

>   Adding multiuser capability causes all sorts of headaches concerning
> who can do what? when? who does it affect? when does it affect them?
> For instance, you're off modifying some system service. Do the other
> users get your new modified services or do they use the old service?

I think that if it is a shared service, they get the new service. If it is a
service that is non-shared, they keep their version and you keep your 
version. You don't need multiple users to run into these deliemmas -- you
get them as soon as you move into multiple concurrent processes. What happens
when you change your mail spool process: do all of the daemons concurrently
working with it use the new one or the old one? These daemons may not be
officially "users", but they introduce all of the concurrency problems of 
concurrent users.

 Paul Prescod