X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=src%2Fobjects.lisp;h=e9a2024112ec409b26c136a3deda65020ba8ca16;hb=09464c82191ef241c749756bbad5ffaadd8f6e5f;hp=0881539df370794a00977ca1601fac4212e6caaf;hpb=f1de6d7be49f73be92691828678aeafe98ddee99;p=uffi.git diff --git a/src/objects.lisp b/src/objects.lisp index 0881539..e9a2024 100644 --- a/src/objects.lisp +++ b/src/objects.lisp @@ -2,12 +2,12 @@ ;;;; ************************************************************************* ;;;; FILE IDENTIFICATION ;;;; -;;;; Name: objects.cl +;;;; Name: objects.lisp ;;;; Purpose: UFFI source to handle objects and pointers ;;;; Programmer: Kevin M. Rosenberg ;;;; Date Started: Feb 2002 ;;;; -;;;; $Id: objects.lisp,v 1.10 2002/12/30 20:49:12 kevin Exp $ +;;;; $Id$ ;;;; ;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg ;;;; @@ -16,24 +16,23 @@ ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL. ;;;; ************************************************************************* -(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0))) -(in-package :uffi) - -(defun size-of-foreign-type (type) - #+lispworks (fli:size-of type) - #+allegro (ff:sizeof-fobject type) - #+(or cmu scl) (ash (eval `(alien:alien-size ,type)) -3) ;; convert from bits to bytes - #+sbcl (ash (eval `(sb-alien:alien-size ,type)) -3) ;; convert from bits to bytes - #+clisp (values (ffi:size-of type)) - #+(and mcl (not openmcl)) - (let ((mcl-type (ccl:find-mactype type nil t))) - (if mcl-type - (ccl::mactype-record-size mcl-type) - (ccl::record-descriptor-length (ccl:find-record-descriptor type t t)))) ;error if not a record - #+openmcl (ccl::%foreign-type-or-record-size type :bytes) - ) - +(in-package #:uffi) +(eval-when (:compile-toplevel :load-toplevel :execute) + (defun size-of-foreign-type (type) + #+lispworks (fli:size-of type) + #+allegro (ff:sizeof-fobject type) + #+(or cmu scl) (ash (eval `(alien:alien-size ,type)) -3) ;; convert from bits to bytes + #+sbcl (ash (eval `(sb-alien:alien-size ,type)) -3) ;; convert from bits to bytes + #+clisp (values (ffi:size-of type)) + #+(and mcl (not openmcl)) + (let ((mcl-type (ccl:find-mactype type nil t))) + (if mcl-type + (ccl::mactype-record-size mcl-type) + (ccl::record-descriptor-length (ccl:find-record-descriptor type t t)))) ;error if not a record + #+openmcl (ccl::%foreign-type-or-record-size type :bytes) + )) + (defmacro allocate-foreign-object (type &optional (size :unspecified)) "Allocates an instance of TYPE. If size is specified, then allocate an array of TYPE with size SIZE. The TYPE parameter is evaluated." @@ -93,6 +92,16 @@ an array of TYPE with size SIZE. The TYPE parameter is evaluated." #+mcl `(ccl:%null-ptr) ) +(defmacro make-pointer (addr type) + #+(or allegro mcl) (declare (ignore type)) + #+(or cmu scl) `(alien:sap-alien (system:int-sap ,addr) (* ,(convert-from-uffi-type (eval type) :type))) + #+sbcl `(sb-alien:sap-alien (sb-sys:int-sap ,addr) (* ,(convert-from-uffi-type (eval type) :type))) + #+lispworks `(fli:make-pointer :address ,addr :type (quote ,(convert-from-uffi-type (eval type) :type))) + #+allegro addr + #+mcl `(ccl:%int-to-ptr ,addr) + ) + + (defmacro char-array-to-pointer (obj) #+(or cmu scl) `(alien:cast ,obj (* (alien:unsigned 8))) #+sbcl `(sb-alien:cast ,obj (* (sb-alien:unsigned 8))) @@ -112,28 +121,27 @@ an array of TYPE with size SIZE. The TYPE parameter is evaluated." #+mcl `(ccl:pref ,ptr ,(convert-from-uffi-type type :deref)) ) -#+mcl +#+(and mcl (not openmcl)) (defmacro deref-pointer-set (ptr type value) `(setf (ccl:pref ,ptr ,(convert-from-uffi-type type :deref)) ,value)) -#+mcl +#+(and mcl (not openmcl)) (defsetf deref-pointer deref-pointer-set) -#+(or lispworks (and mcl (not openmcl))) ;; with LW, deref is a character (defmacro ensure-char-character (obj) - obj) - -#+(or allegro cmu sbcl scl openmcl) -(defmacro ensure-char-character (obj) - `(code-char ,obj)) + #+(or (and mcl (not openmcl))) obj + #+(or allegro cmu sbcl scl openmcl) `(code-char ,obj) + ;; lispworks varies whether deref'ing array vs. slot access of a char + #+lispworks + `(if (characterp ,obj) ,obj (code-char ,obj))) -#+(or lispworks (and mcl (not openmcl))) (defmacro ensure-char-integer (obj) - `(char-code ,obj)) + #+(or (and mcl (not openmcl))) `(char-code ,obj) + #+(or allegro cmu sbcl scl openmcl) obj) -#+(or allegro cmu sbcl scl openmcl) -(defmacro ensure-char-integer (obj) - obj) +(defmacro ensure-char-storable (obj) + #+(or lispworks (and mcl (not openmcl))) obj + #+(or allegro cmu sbcl scl openmcl) `(char-code ,obj)) (defmacro pointer-address (obj) #+(or cmu scl) @@ -157,15 +165,25 @@ an array of TYPE with size SIZE. The TYPE parameter is evaluated." (progn ,@body) (free-foreign-object ,var))) #+(or cmu scl) - (let ((obj (gensym))) - `(alien:with-alien ((,obj ,(convert-from-uffi-type (eval type) :allocate))) - (let ((,var (alien:addr ,obj))) - ,@body))) + (let ((obj (gensym)) + (ctype (convert-from-uffi-type (eval type) :allocate))) + (if (and (consp ctype) (eq 'array (car ctype))) + `(alien:with-alien ((,obj ,ctype)) + (let* ((,var ,obj)) + ,@body)) + `(alien:with-alien ((,obj ,ctype)) + (let* ((,var (alien:addr ,obj))) + ,@body)))) #+sbcl - (let ((obj (gensym))) - `(sb-alien:with-alien ((,obj ,(convert-from-uffi-type (eval type) :allocate))) - (let ((,var (sb-alien:addr ,obj))) - ,@body))) + (let ((obj (gensym)) + (ctype (convert-from-uffi-type (eval type) :allocate))) + (if (and (consp ctype) (eq 'array (car ctype))) + `(sb-alien:with-alien ((,obj ,ctype)) + (let* ((,var ,obj)) + ,@body)) + `(sb-alien:with-alien ((,obj ,ctype)) + (let* ((,var (sb-alien:addr ,obj))) + ,@body)))) #+lispworks `(fli:with-dynamic-foreign-objects ((,var ,(convert-from-uffi-type (eval type) :allocate))) @@ -198,3 +216,61 @@ an array of TYPE with size SIZE. The TYPE parameter is evaluated." `(with-foreign-objects ((,var ,type)) ,@body)) +#+lispworks +(defmacro with-cast-pointer ((binding-name pointer type) &body body) + `(fli:with-coerced-pointer (,binding-name + :type ',(convert-from-uffi-type (eval type) :type)) + ,pointer + ,@body)) + +#+(or cmu scl sbcl) +(defmacro with-cast-pointer ((binding-name pointer type) &body body) + `(let ((,binding-name + (#+(or cmu scl) alien:cast + #+sbcl sb-alien:cast + ,pointer (* ,(convert-from-uffi-type (eval type) :type))))) + ,@body)) + +#+(or allegro openmcl) +(defmacro with-cast-pointer ((binding-name pointer type) &body body) + (declare (ignore type)) + `(let ((,binding-name ,pointer)) + ,@body)) + +#-(or lispworks cmu scl sbcl allegro openmcl) +(defmacro with-cast-pointer ((binding-name pointer type) &body body) + (declare (ignore binding-name pointer type body)) + '(error "WITH-CAST-POINTER not (yet) implemented for ~A" + (lisp-implementation-type))) + +(defmacro def-foreign-var (names type module) + #-lispworks (declare (ignore module)) + (let ((foreign-name (if (atom names) names (first names))) + (lisp-name (if (atom names) (make-lisp-name names) (second names))) + #-allegro + (var-type (convert-from-uffi-type type :type))) + #+(or cmu scl) + `(alien:def-alien-variable (,foreign-name ,lisp-name) ,var-type) + #+sbcl + `(sb-alien:define-alien-variable (,foreign-name ,lisp-name) ,var-type) + #+allegro + `(define-symbol-macro ,lisp-name + (ff:fslot-value-typed (quote ,(convert-from-uffi-type type :deref)) + :c (ff:get-entry-point ,foreign-name))) + #+lispworks + `(progn + (fli:define-foreign-variable (,lisp-name ,foreign-name) + :accessor :address-of + :type ,var-type + :module ,module) + (define-symbol-macro ,lisp-name (fli:dereference (,lisp-name) + :copy-foreign-object nil))) + #+(and openmcl darwinppc-target) + (setf foreign-name (concatenate 'string "_" foreign-name)) + #+openmcl + `(define-symbol-macro ,lisp-name + (deref-pointer (ccl:foreign-symbol-address ,foreign-name) ,var-type)) + #-(or allegro cmu scl sbcl lispworks openmcl) + `(define-symbol-macro ,lisp-name + '(error "DEF-FOREIGN-VAR not (yet) defined for ~A" + (lisp-implementation-type)))))