;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Feb 2002
;;;;
-;;;; $Id$
-;;;;
-;;;; This file, part of UFFI, is Copyright (c) 2002-2005 by Kevin M. Rosenberg
+;;;; This file, part of UFFI, is Copyright (c) 2002-2010 by Kevin M. Rosenberg
;;;;
;;;; *************************************************************************
#+clisp (values (ffi:size-of type))
#+digitool
(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
+ (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."
(if (eq size :unspecified)
(progn
- #+(or cmu scl)
- `(alien:make-alien ,(convert-from-uffi-type (eval type) :allocation))
- #+sbcl
- `(sb-alien:make-alien ,(convert-from-uffi-type (eval type) :allocation))
- #+lispworks
- `(fli:allocate-foreign-object :type ',(convert-from-uffi-type type :allocate))
- #+allegro
- `(ff:allocate-fobject ',(convert-from-uffi-type type :allocate) :c)
- #+(or openmcl digitool)
- `(new-ptr ,(size-of-foreign-type (convert-from-uffi-type type :allocation)))
- )
+ #+(or cmu scl)
+ `(alien:make-alien ,(convert-from-uffi-type (eval type) :allocation))
+ #+sbcl
+ `(sb-alien:make-alien ,(convert-from-uffi-type (eval type) :allocation))
+ #+lispworks
+ `(fli:allocate-foreign-object :type ',(convert-from-uffi-type type :allocate))
+ #+allegro
+ `(ff:allocate-fobject ',(convert-from-uffi-type type :allocate) :c)
+ #+(or openmcl digitool)
+ `(new-ptr ,(size-of-foreign-type (convert-from-uffi-type type :allocation)))
+ )
(progn
- #+(or cmu scl)
- `(alien:make-alien ,(convert-from-uffi-type (eval type) :allocation) ,size)
- #+sbcl
- `(sb-alien:make-alien ,(convert-from-uffi-type (eval type) :allocation) ,size)
- #+lispworks
- `(fli:allocate-foreign-object :type ',(convert-from-uffi-type type :allocate) :nelems ,size)
- #+allegro
- `(ff:allocate-fobject (list :array (quote ,(convert-from-uffi-type type :allocate)) ,size) :c)
- #+(or openmcl digitool)
- `(new-ptr (* ,size ,(size-of-foreign-type (convert-from-uffi-type type :allocation))))
- )))
+ #+(or cmu scl)
+ `(alien:make-alien ,(convert-from-uffi-type (eval type) :allocation) ,size)
+ #+sbcl
+ `(sb-alien:make-alien ,(convert-from-uffi-type (eval type) :allocation) ,size)
+ #+lispworks
+ `(fli:allocate-foreign-object :type ',(convert-from-uffi-type type :allocate) :nelems ,size)
+ #+allegro
+ `(ff:allocate-fobject (list :array (quote ,(convert-from-uffi-type type :allocate)) ,size) :c)
+ #+(or openmcl digitool)
+ `(new-ptr (* ,size ,(size-of-foreign-type (convert-from-uffi-type type :allocation))))
+ )))
(defmacro free-foreign-object (obj)
#+(or cmu scl)
#+(or cmu scl) `(alien:cast ,obj (* (alien:unsigned 8)))
#+sbcl `(sb-alien:cast ,obj (* (sb-alien:unsigned 8)))
#+lispworks `(fli:make-pointer :type '(:unsigned :char)
- :address (fli:pointer-address ,obj))
+ :address (fli:pointer-address ,obj))
#+allegro obj
#+(or openmcl digitool) 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)))
-
+
(defmacro ensure-char-integer (obj)
#+(or digitool) `(char-code ,obj)
#+(or allegro cmu sbcl scl openmcl) obj
`(if (integerp ,obj) ,obj (char-code ,obj)))
(defmacro ensure-char-storable (obj)
- #+(or lispworks digitool) obj
- #+(or allegro cmu sbcl scl openmcl) `(char-code ,obj))
+ #+(or digitool (and lispworks (not lispworks5) (not lispworks6))) obj
+ #+(or allegro cmu lispworks5 lispworks6 openmcl sbcl scl)
+ `(char-code ,obj))
(defmacro pointer-address (obj)
#+(or cmu scl)
#+allegro
obj
#+(or openmcl digitool)
- `(ccl:%ptr-to-int ,obj)
+ `(ccl:%ptr-to-int ,obj)
)
;; TYPE is evaluated.
#-(or cmu sbcl lispworks scl) ; default version
`(let ((,var (allocate-foreign-object ,type)))
(unwind-protect
- (progn ,@body)
+ (progn ,@body)
(free-foreign-object ,var)))
#+(or cmu scl)
(let ((obj (gensym))
- (ctype (convert-from-uffi-type (eval type) :allocate)))
+ (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))))
+ `(alien:with-alien ((,obj ,ctype))
+ (let* ((,var ,obj))
+ ,@body))
+ `(alien:with-alien ((,obj ,ctype))
+ (let* ((,var (alien:addr ,obj)))
+ ,@body))))
#+sbcl
(let ((obj (gensym))
- (ctype (convert-from-uffi-type (eval type) :allocate)))
+ (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))))
+ `(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)))
+ (eval type) :allocate)))
,@body)
)
(defmacro with-foreign-objects (bindings &rest body)
(if bindings
`(with-foreign-object ,(car bindings)
- (with-foreign-objects ,(cdr bindings)
- ,@body))
+ (with-foreign-objects ,(cdr bindings)
+ ,@body))
`(progn ,@body)))
#+(or openmcl digitool)
(setf type (nth 1 type)))
(push (list (first spec) (* count (size-of-foreign-type type))) params))
`(ccl:%stack-block ,params ,@body)))
-
+
#+(or openmcl digitool)
(defmacro with-foreign-object ((var type) &rest body)
- `(with-foreign-objects ((,var ,type))
+ `(with-foreign-objects ((,var ,type))
,@body))
#+lispworks
(lisp-implementation-type)))
#+(or allegro openmcl)
-(defun convert-external-name (name)
+(defun convert-external-name (name)
"Add an underscore to NAME if necessary for the ABI."
#+(or macosx darwinppc-target) (concatenate 'string "_" name)
#-(or macosx darwinppc-target) name)
`(define-symbol-macro ,lisp-name
'(error "DEF-FOREIGN-VAR not (yet) defined for ~A"
(lisp-implementation-type)))))
+
+
+;;; Define a special variable, like DEFVAR, that will be initialized
+;;; to a pointer which may need to be reset when a saved image is
+;;; loaded. This is needed for OpenMCL, which sets pointers to "dead
+;;; macptrs" when a saved image is loaded.
+;; This may possibly be needed for sbcl's SAVE-LISP-AND-DIE
+(defmacro def-pointer-var (name value &optional doc)
+ #-openmcl `(defvar ,name ,value ,@(if doc (list doc)))
+ #+openmcl `(ccl::defloadvar ,name ,value ,doc))
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