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Re: static variables with scheme objects

From: Paul Jarc
Subject: Re: static variables with scheme objects
Date: Wed, 16 Jul 2003 14:18:22 -0400
User-agent: Gnus/5.1003 (Gnus v5.10.3) Emacs/21.3 (gnu/linux)

sig <address@hidden> wrote:
> static SCM global_mutex;
> void init() {
>   global_mutex = scm_make_mutex();
> }
> but it seems like doing this be dangerous as the garbage
> collector would try to reclaim the object as its not an
> immediate and the only reference is this global variable so
> walking the stack wouldn't find it.

Right.  You can protect it from the garbage collector like this:

global_mutex = scm_permanent_object(scm_make_mutex());


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