1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
5 ;;;; Name: primitives.cl
6 ;;;; Purpose: UFFI source to handle immediate types
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Feb 2002
10 ;;;; Copyright (c) 2002 Kevin M. Rosenberg
12 ;;;; $Id: primitives.cl,v 1.3 2002/03/11 18:00:57 kevin Exp $
14 ;;;; This file is part of the UFFI.
16 ;;;; UFFI is free software; you can redistribute it and/or modify
17 ;;;; it under the terms of the GNU General Public License (version 2) as
18 ;;;; published by the Free Software Foundation.
20 ;;;; UFFI is distributed in the hope that it will be useful,
21 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
22 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 ;;;; GNU General Public License for more details.
25 ;;;; You should have received a copy of the GNU General Public License
26 ;;;; along with UFFI; if not, write to the Free Software
27 ;;;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 ;;;; *************************************************************************
30 (declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
33 (defmacro def-constant (name value)
34 "Macro to define a constant and to export it"
35 `(eval-when (:compile-toplevel :load-toplevel :execute)
36 (defconstant ,name ,value)
39 (defmacro def-type (name type)
40 "Generates a (deftype) statement for CL. Currently, only CMUCL
41 supports takes advantage of this optimization."
42 #+(or lispworks allegro)
45 `(deftype ,name () '(alien:alien ,(convert-from-uffi-type type :declare)))
48 (defmacro null-char-p (val)
55 (defmacro def-foreign-type (name type)
56 #+lispworks `(fli:define-c-typedef ,name ,(convert-from-uffi-type type :type))
57 #+allegro `(ff:def-foreign-type ,name ,(convert-from-uffi-type type :type))
58 #+cmu `(alien:def-alien-type ,name ,(convert-from-uffi-type type :type))
61 (eval-when (:compile-toplevel :load-toplevel :execute)
62 (defvar +type-conversion-hash+ (make-hash-table :size 20))
63 #+cmu (defvar +cmu-def-type-hash+ (make-hash-table :size 20))
67 (defconstant +cmu-def-type-list+
68 '((:char . (alien:signed 8))
69 (:unsigned-char . (alien:unsigned 8))
70 (:byte . (alien:unsigned 8))
71 (:short . (alien:signed 16))
72 (:unsigned-short . (alien:unsigned 16))
73 (:int . (alien:signed 32))
74 (:unsigned-int . (alien:unsigned 32))
75 (:long . (alien:signed 32))
76 (:unsigned-long . (alien:unsigned 32))
77 (:float . alien:single-float)
78 (:double . alien:double-float)
82 (defconstant +type-conversion-list+
83 '((* . *) (:void . c-call:void)
84 (:short . c-call:short)
85 (:pointer-void . (* t))
86 (:cstring . c-call:c-string)
88 (:unsigned-char . (alien:unsigned 8))
89 (:byte . (alien:unsigned 8))
90 (:int . alien:integer) (:unsigned-int . c-call:unsigned-int)
91 (:long . c-call:long) (:unsigned-long . c-call:unsigned-long)
92 (:float . c-call:float) (:double . c-call:double)
93 (:array . alien:array)))
95 (defconstant +type-conversion-list+
96 '((* . *) (:void . :void)
98 (:pointer-void . (* :void))
99 (:cstring . (* :char))
101 (:unsigned-char . :unsigned-char)
103 (:int . :int) (:unsigned-int . :unsigned-int)
104 (:long . :long) (:unsigned-long . :unsigned-long)
105 (:float . :float) (:double . :double)
108 (defconstant +type-conversion-list+
109 '((* . :pointer) (:void . :void)
111 (:pointer-void . (:pointer :void))
112 (:cstring . (:pointer :char))
114 (:unsigned-char . (:unsigned :char))
115 (:int . :int) (:unsigned-int . (:unsigned :int))
116 (:long . :long) (:unsigned-long . (:unsigned :long))
117 (:float . :float) (:double . :double)
118 (:array . :c-array)))
120 (dolist (type +type-conversion-list+)
121 (setf (gethash (car type) +type-conversion-hash+) (cdr type)))
124 (dolist (type +cmu-def-type-list+)
125 (setf (gethash (car type) +cmu-def-type-hash+) (cdr type)))
127 (defmethod ph (&optional (os *standard-output*))
128 (maphash #'(lambda (k v) (format os "~&~S => ~S" k v)) +type-conversion-hash+))
130 (defun convert-from-uffi-type (type context)
131 "Converts from a uffi type to an implementation specific type"
135 ((and (or (eq context :routine) (eq context :return))
137 (setq type '((* :char) integer)))
140 (let ((cmu-type (gethash type +cmu-def-type-hash+)))
143 (let ((found-type (gethash type +type-conversion-hash+)))
148 (let ((found-type (gethash type +type-conversion-hash+)))
152 (cons (convert-from-uffi-type (first type) context)
153 (convert-from-uffi-type (rest type) context))))