Why do you not use "weak" pointer semantic ?
http://caml.inria.fr/pub/docs/manual-ocaml/libref/Weak.html

2014-10-07 10:05 GMT+02:00 Damien Pous <Damien.Pous@inria.fr>:

> Hello,
>
> Is there a way to register a function, to be called before each gc
> major collection ?
> (I have some cache tables which I'd like to empty from time to time -
> I'm not sure this is a good idea, but I would like to experiment it.)
>
> I see two related functions in the std lib, but not the precise thing I
> want:
> - Gc.create_alarm, to register a function to be called *after* such
> collections ;
> - Gc.finalise, which I could use with a dummy heap allocated value,
> but then I guess my function would be called before any gc *minor*
> collection, which is certainly too often in my concrete use-case.
>
> Thanks in advance,
> Damien
>
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