Re: Tool class (Long... *real* Long)

[Ken Cline]

Ted,

Thanks! That does help a lot!

To be honest, I only had a chance to quickly look at
one of those references you suggested before I was
"distracted".  A more in depth reading will have to wait
until the weekend.

> ... Of course, you could also just use garbage collection,
> if it is available.

Perhaps, if I wasn't such a control freak when it comes to
my objects.  (I plan to seek counseling.) ;)

Thanks again!

Ken.


On Thu, 20 Mar 1997, Theodore C. Belding wrote:

> Hi Ken-
> 
> At 1:17 AM -0500 3/20/97, Ken Cline wrote:>Problems:
> >   (1) How does agent B assure that object X's data isn't
> >       altered while B is using X?
> 
> Sounds like a job for a mutual exclusion (mutex) semaphore.  See any decent
> OS textbook, e.g., Silberschatz, A., and P. B. Galvin. (1994). Operating
> Systems Concepts, 4th ed. Addison-Wesley. p. 177
> 
> >   (2) Who, agent A or agent B or ???,  has the
> >       responsibility for dropping the shared object X?
> 
> Sounds like a classic place to use reference counting or reference-counted
> smart pointers.  See:
> Meyers, S. (1996). More Effective C++. Addison-Wesley. pp. 183-213.
> or
> Barton, J. J., and L. R. Nackman (1994). Scientific and Engineering C++.
> Addison-Wesley. p. 425
> 
> (Both are C++-specific, but the concept is general.  Maybe someone else can
> suggest a more general reference.)  Of course, you could also just use
> garbage collection, if it is available.
> 
> Hope that helps.
> -Ted
> 
> --
> Ted Belding                      <mailto:address@hidden>
> University of Michigan Program for the Study of Complex Systems
> <http://www-personal.engin.umich.edu/~streak/>
> 
> 
> 

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