Re: When should ralloc.c be used? (WAS: bug#24358)

[Paul Eggert <eggert@cs.ucla.edu>]

On 10/27/2016 01:40 PM, Richard Stallman wrote:
> Any such scheme has this problem:
> how to find all the places where initialization has stored some sort
> of value?  They do not all have ways to access them and set them from Lisp.

My impression is that most such initializations are so small and fast 
that we needn't worry about saving and restoring their state. We can 
simply redo the initialization when Emacs starts up again - this will be 
the default behavior if we leave the temacs initialization code alone, 
which means we'd get this for very little maintenance effort. Any 
counterexamples we can handle specially, by saving and restoring their 
state by hand (so to speak).

Something along the lines of your idea for storage creation should work, 
though we'll have to be careful about destructive operations like setcar 
that can cause an object with an earlier sequence number to point to an 
object with a later sequence number. It's not clear whether it has 
significant advantages over the C-based approach.