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;;;; -*- Mode: lisp; indent-tabs-mode: nil -*-
;;;
;;; init.lisp --- Load libffi and define #'libffi-type-pointer
;;;
;;; Copyright (C) 2009, 2011 Liam M. Healy
;;;
;;; Permission is hereby granted, free of charge, to any person
;;; obtaining a copy of this software and associated documentation
;;; files (the "Software"), to deal in the Software without
;;; restriction, including without limitation the rights to use, copy,
;;; modify, merge, publish, distribute, sublicense, and/or sell copies
;;; of the Software, and to permit persons to whom the Software is
;;; furnished to do so, subject to the following conditions:
;;;
;;; The above copyright notice and this permission notice shall be
;;; included in all copies or substantial portions of the Software.
;;;
;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
;;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
;;; DEALINGS IN THE SOFTWARE.
;;;
(in-package #:cffi)
(define-foreign-library (libffi)
(:darwin (:or "libffi.dylib" "libffi32.dylib" "/usr/lib/libffi.dylib"))
(:solaris (:or "/usr/lib/amd64/libffi.so" "/usr/lib/libffi.so"))
(:openbsd "libffi.so")
(:unix (:or "libffi.so.6" "libffi32.so.6" "libffi.so.5" "libffi32.so.5"))
(:windows (:or "libffi-6.dll" "libffi-5.dll" "libffi.dll"))
(t (:default "libffi")))
(load-foreign-library 'libffi)
(defvar *libffi-type-pointer* (make-hash-table))
(defgeneric libffi-type-pointer (object)
(:documentation "The type pointer defined by libffi.")
(:method ((object symbol))
(libffi-type-pointer (parse-type object)))
(:method (object)
(gethash object *libffi-type-pointer*)))
(defun set-libffi-type-pointer (type pointer)
"Set the hash table entry for the libffi type pointer."
(setf (gethash (if (symbolp type) (parse-type type) type)
*libffi-type-pointer*)
pointer))
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