Re: Emacs design and architecture. How about copy-on-write?

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> How is this different from
>
>   (setq name-of-variable SOMETHING)
>
> done by some thread to a global variable?

That's orthogonal to the subject at hand.  If name-of-variable is
forwarded, then SOMETHING must be recorded within either thread_state or
globals.  If not, it becomes the new value held by one of
name-of-variable's value cells.