[Chicken-users] Setting up hooks in garbage collection

[Paulo Jabardo]

I'm beginning to develop a chicken interface to the GNU scientific library 
(gsl). Several numerical procedures involve an operation such as:

gsl_XXX *ptr = gsl_XXX_alloc(...)

...

gsl_XXX_free(ptr)


I would like to define a chicken variable that manages the pointer. But I don't 
want to explicitely call the XXX_free function. Something like:

(define resource (make-gsl-XXX ...))

When the garbage collector collects resource, it would automatically call the 
function gsl_XXX_free (or a chicken wrapper of it).

Is that even possible?
If it isn't could someone suggest a "schemish" approach to the problem?

Thanks

Paulo



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