-;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
-;;;; *************************************************************************
-;;;; FILE IDENTIFICATION
-;;;;
-;;;; Name: immediates.cl
-;;;; Purpose: UFFI source to handle immediate types
-;;;; Programmer: Kevin M. Rosenberg
-;;;; Date Started: Feb 2002
-;;;;
-;;;; Copyright (c) 2002 Kevin M. Rosenberg
-;;;;
-;;;; $Id: immediates.cl,v 1.4 2002/03/10 17:42:35 kevin Exp $
-;;;;
-;;;; This file is part of the UFFI.
-;;;;
-;;;; UFFI is free software; you can redistribute it and/or modify
-;;;; it under the terms of the GNU General Public License (version 2) as
-;;;; published by the Free Software Foundation.
-;;;;
-;;;; UFFI is distributed in the hope that it will be useful,
-;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;;;; GNU General Public License for more details.
-;;;;
-;;;; You should have received a copy of the GNU General Public License
-;;;; along with UFFI; if not, write to the Free Software
-;;;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-;;;; *************************************************************************
-
-(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
-(in-package :uffi)
-
-(defmacro def-constant (name value)
- "Macro to define a constant and to export it"
- `(eval-when (:compile-toplevel :load-toplevel :execute)
- (defconstant ,name ,value)
- (export ',name)))
-
-(defmacro uffi-declare (type name)
- "Generates a declare statement for CL. Currently, only CMUCL
-supports this."
- #+(or lispworks allegro)
- (declare (ignore type name))
- #+cmu
- `(declare (type (alien ,type) ,name))
- )
-
-(defmacro slot-type (type)
- #+(or lispworks allegro)
- (declare (ignore type))
- #+(or lispworks allegro)
- t
- #+cmu `'(alien:alien ,type))
-
-(defmacro null-char-p (val)
- `(if (or (eql ,val 0)
- (eq ,val #\Null))
- t
- nil))
-
-
-(defmacro def-type (name type)
- #+lispworks `(fli:define-c-typedef ,name ,(convert-from-uffi-type type :type))
- #+allegro `(ff:def-foreign-type ,name ,(convert-from-uffi-type type :type))
- #+cmu `(alien:def-alien-type ,name ,(convert-from-uffi-type type :type))
- )
-
-(eval-when (:compile-toplevel :load-toplevel :execute)
- (defvar +type-conversion-hash+ (make-hash-table :size 20))
- #+cmu (defvar +cmu-def-type-hash+ (make-hash-table :size 20))
- )
-
-#+cmu
-(defconstant +cmu-def-type-list+
- '((:char . (alien:signed 8))
- (:unsigned-char . (alien:unsigned 8))
- (:byte . (alien:unsigned 8))
- (:short . (alien:signed 16))
- (:unsigned-short . (alien:unsigned 16))
- (:int . (alien:signed 32))
- (:unsigned-int . (alien:unsigned 32))
- (:long . (alien:signed 32))
- (:unsigned-long . (alien:unsigned 32))
- (:float . alien:single-float)
- (:double . alien:double-float)
- ))
-
-#+cmu
-(defconstant +type-conversion-list+
- '((* . *) (:void . c-call:void)
- (:short . c-call:short)
- (:pointer-void . (* t))
- (:cstring . c-call:cstring)
- (:char . c-call:char)
- (:unsigned-char . (alien:unsigned 8))
- (:byte . (alien:unsigned 8))
- (:int . alien:integer) (:unsigned-int . c-call:unsigned-int)
- (:long . c-call:long) (:unsigned-long . c-call:unsigned-long)
- (:float . c-call:float) (:double . c-call:double)
- (:array . alien:array)))
-#+allegro
-(defconstant +type-conversion-list+
- '((* . *) (:void . :void)
- (:short . :short)
- (:pointer-void . (* :void))
- (:cstring . (* :char))
- (:char . :char)
- (:unsigned-char . :unsigned-char)
- (:byte . :byte)
- (:int . :int) (:unsigned-int . :unsigned-int)
- (:long . :long) (:unsigned-long . :unsigned-long)
- (:float . :float) (:double . :double)
- (:array . :array)))
-#+lispworks
-(defconstant +type-conversion-list+
- '((* . :pointer) (:void . :void)
- (:short . :short)
- (:pointer-void . (:pointer :void))
- (:cstring . (:pointer :char))
- (:char . :char)
- (:unsigned-char . (:unsigned :char))
- (:int . :int) (:unsigned-int . (:unsigned :int))
- (:long . :long) (:unsigned-long . (:unsigned :long))
- (:float . :float) (:double . :double)
- (:array . :c-array)))
-
-(dolist (type +type-conversion-list+)
- (setf (gethash (car type) +type-conversion-hash+) (cdr type)))
-
-#+cmu
-(dolist (type +cmu-def-type-list+)
- (setf (gethash (car type) +cmu-def-type-hash+) (cdr type)))
-
-(defun ph (&optional (os *standard-output*))
- (maphash #'(lambda (k v) (format os "~&~S => ~S" k v)) +type-conversion-hash+))
-
-(defun convert-from-uffi-type (type context)
- "Converts from a uffi type to an implementation specific type"
- (if (atom type)
- (cond
- #+allegro
- ((and (or (eq context :routine) (eq context :return))
- (eq type :cstring))
- (setq type '((* :char) integer)))
- #+cmu
- ((eq context :type)
- (let ((cmu-type (gethash type +cmu-def-type-hash+)))
- (if cmu-type
- cmu-type
- (let ((found-type (gethash type +type-conversion-hash+)))
- (if found-type
- found-type
- type)))))
- (t
- (let ((found-type (gethash type +type-conversion-hash+)))
- (if found-type
- found-type
- type))))
- (cons (convert-from-uffi-type (first type) context)
- (convert-from-uffi-type (rest type) context))))
-
-
-
-
-
-