Re: Generic CClosure marshaller using libffi

[Tim Janik <timj gtk org>]

On Tue, 30 Jan 2007, Behdad Esfahbod wrote:

> On Tue, 2007-01-30 at 18:13 -0200, Johan Dahlin wrote:
> > > On Tue, 2007-01-30 at 08:22 -0500, Johan Dahlin wrote:
> > > > +  atypes = g_new (ffi_type *, n_args);
> > > > +  args =  g_new (gpointer, n_args);
> > >
> > > How about using gslice?
> >
> > Does it really make sense to use GSlice when allocating an array of
> > pointers? I thought it was mostly useful to allocate an array of
> > structures.
>
> It makes sense to use gslice for all small allocations IMO.  For things

right, where "small" is roughly < 1024 bytes.

> like your usecase that you are freeing the memory very very soon, there
> may not be any memory fragmentation worries.  So the benefit of gslice
> here would be speed on systems that have a slow malloc.
>
> Thinking about it now, better would be to use a stack buffer for small
> n_args values, like 8 for example.

we also have g_alloca.

> behdad
> http://behdad.org/

---
ciaoTJ