[cffi-devel] Defcallback calling into C

[Luke J Crook]

Does DEFCALLBACK support calling back into C from the Lisp side? One of 
the features of OpenRM is that it will call a callback when certain data 
structures are freed internally by the C library (for example a node in 
the scene graph, or vertex and color data shared between primitives 
within nodes.) Complex structures require that the appropriate C 
function is called.

I am using CFFI version 0.9.2 from the Cliki and see the same error from 
Lispworks and SBCL.

Thanks,
- Luke