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One is CFFI, widely known and well documented, with tutorial and tooling: https://common-lisp.net/project/cffi/ The other was UFFI, older; but then there are others. In fact, there are a ton of other projects for doing FFI in Common Lisp! http://www.cliki.net/FFI And then you can also use the FFI functionalities provided by the particular Lisp implementation (i.e. SBCL, LispWorks, ABCL, etc.) However, the use of a portable library like CFFI means that you can take your code that runs correctly in SBCL, and then run the very same code in CLISP (other Lisp implementation) with no change at all. CFFI works for the following Lisp implementations or "compilers": ABCL, Allegro CL, Clasp, CLISP, Clozure CL, CMUCL, Corman CL, ECL, GCL, LispWorks, MCL, SBCL and the Scieneer CL. That's a lot of implementations! |