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Re: C calling Scheme and garbage collection
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From: |
Hans Åberg |
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Subject: |
Re: C calling Scheme and garbage collection |
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Date: |
Sun, 30 Jun 2019 14:51:52 +0200 |
> On 27 Jun 2019, at 21:52, Greg Troxel <address@hidden> wrote:
>
> I have been down this path before, with guile and with lua. Basically,
> if C (or non-scheme) has a pointer to a scheme object, then you need to
> hold a logical reference for it and protect the scheme object, and when
> the C pointer is dropped decrease the refcnt.
>
> I am unclear on the details of how you have a ref that gc is made aware
> of.
If one allocates with the underlying Boehm GC, is the SCM object kept alive?