Re: [Xen-devel] [PATCH v6 03/11] libxl: ocaml: event management

[Rob Hoes <Rob.Hoes@xxxxxxxxxx>]

Ian Campbell wrote:
> On Tue, 2013-12-10 at 15:48 +0000, Rob Hoes wrote:
> > > Why do we need to return this results thing which is a pointer to
> > > the hooks pointer? Something to do with keeping it live in the gc?
> > > Doesn't that rely on the caller assigning it to a long lived
> > > variable so that it isn't gc'd?
> >
> > I think I made it return a pointer to the hooks, to be able to use it
> > as a handle that we can give to a cleanup function. However, no such
> > cleanup function currently exists (yet), and we don't actually use the
> > return value.
> 
> Is this because changing the ocaml API in the future is a bit tricky? In
> which case I suppose it is fine.

Well, it just avoids a possible interface change later on, while not causing 
much trouble.

Cheers,
Rob
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