Re: atexit in modules

[Mike Gran]

> ----- Original Message ----
> > From: Ludovic Courtès address@hidden
> 
> > In theory, the Right Way(tm) would be to register a finalizer for the
> > module that does `load-extension'.  That can be done using a guardian,
> > but the guardian the needs to be called once in a while, e.g., in
> > `after-gc-hook' and `exit-hook'.
> 
> OK.  I see in the manual there is a section on guardians and a mention of 
> after-gc-hook in garbage-collection section. Cool.  
> 
> Exit-hook is underdocumented.  The one thread suggested that exit-hook is 
> only 
> called when using the REPL.  Is that (still) true?  

Continuing...

Source diving tells me that exit-hook is a REPL-only feature.

So I'm back to the idea of creating a module-level variable that exists while 
the module is in memory, and then calling library_end() when that variable is 
GC'd.  But I can make it more schemey by using guardians and after-gc-hook as 
you suggested.

Thanks,

Mike Gran