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Re: GC + Java finalization
From: |
Jonas Hahnfeld |
Subject: |
Re: GC + Java finalization |
Date: |
Fri, 19 Nov 2021 14:40:16 +0100 |
User-agent: |
Evolution 3.42.1 |
Am Freitag, dem 19.11.2021 um 13:35 +0000 schrieb Maxime Devos:
> Jonas Hahnfeld schreef op vr 19-11-2021 om 14:32 [+0100]:
> > > You coud simply ...
> > >
> > >
> > > > - scm_gc_free (rx, sizeof(regex_t), "regex");
> > > > + free (rx);
> > >
> > > drop the scm_gc_free AFAIK.
> >
> > No, I cannot as explained in the patch summary: If we use
> > scm_gc_free
> > in a free function of a Smob, this relies on Java finalization
> > because
> > the memory must not be reclaimed in the same cycle.
>
> The suggestion was to remove scm_gc_free, and not introduce free.
> I.e., don't free rx manually at all, let boehmgc decide:
>
> regex_free (SCM obj)
> {
> regfree (SCM_RGX (obj));
> - scm_gc_free (SCM_RGX (obj), sizeof(regex_t), "regex");
> return 0;
> }
This is dangerous because we still pass the memory to regfree, so it
must not be freed before.
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- Re: GC + Java finalization, Jonas Hahnfeld, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Jonas Hahnfeld, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization,
Jonas Hahnfeld <=
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Jonas Hahnfeld, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Jonas Hahnfeld, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Jonas Hahnfeld, 2021/11/19
- Re: GC + Java finalization, Maxime Devos, 2021/11/19
- Re: GC + Java finalization, Jonas Hahnfeld, 2021/11/19