-;; Common Lisp bindings for GTK+ v1.2.x
-;; Copyright (C) 1999 Espen S. Johnsen <espejohn@online.no>
+;; Common Lisp bindings for GTK+ 2.x
+;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net>
;;
-;; This library is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU Lesser General Public
-;; License as published by the Free Software Foundation; either
-;; version 2 of the License, or (at your option) any later version.
+;; 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:
;;
-;; This library 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
-;; Lesser General Public License for more details.
+;; The above copyright notice and this permission notice shall be
+;; included in all copies or substantial portions of the Software.
;;
-;; You should have received a copy of the GNU Lesser General Public
-;; License along with this library; if not, write to the Free Software
-;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+;; 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.
-;; $Id: glib.lisp,v 1.2 2000/08/15 23:25:18 espen Exp $
+;; $Id: glib.lisp,v 1.45 2008/12/14 21:37:25 espen Exp $
(in-package "GLIB")
-(use-prefix "g")
-
-
-;;;; Memory management
-
-(define-foreign ("g_malloc0" allocate-memory) () pointer
- (size unsigned-long))
-
-(define-foreign ("g_realloc" reallocate-memory) () pointer
- (address pointer)
- (size unsigned-long))
-
-(define-foreign ("g_free" deallocate-memory) () nil
- (address pointer))
-
-(defun copy-memory (from length &optional (to (allocate-memory length)))
- (kernel:system-area-copy from 0 to 0 (* 8 length))
- to)
+(use-prefix "g")
+#-sb-thread
+(progn
+ (defun make-mutex ()
+ nil)
+
+ (defmacro with-mutex ((mutex) &body body)
+ (declare (ignore mutex))
+ `(progn ,@body)))
-;;;; Linked list
-(deftype glist () 'pointer)
-(deftype double-list (type) `(or (null (cons ,type list))))
+;;;; Memory management
+(deftype gsize () 'unsigned-int)
+(deftype gssize () 'int)
+(deftype goffset () '(unsigned-int 64))
-(define-foreign ("g_list_append" %glist-append) () glist
- (glist glist)
- (data unsigned))
-(defmacro glist-append (glist value type-spec)
- (ecase (first (mklist (translate-type-spec type-spec)))
- (unsigned `(%glist-append ,glist ,value))
-; (signed `(%glist-append ,glist (signed-to-unsigned ,value)))
- (system-area-pointer `(%glist-append ,glist (system:sap-int ,value)))))
+(defbinding malloc0 () pointer
+ (size gsize))
+(defbinding free () nil
+ (address pointer))
-(defmacro glist-data (glist type-spec)
- (ecase (first (mklist (translate-type-spec type-spec)))
- (unsigned `(sap-ref-unsigned ,glist 0))
- (signed `(sap-ref-signed ,glist 0))
- (system-area-pointer `(sap-ref-sap ,glist 0))))
+(setf *memory-allocator* #'malloc0)
+(setf *memory-deallocator* #'free)
+(defbinding (reallocate-memory "g_realloc") () pointer
+ (address pointer)
+ (size gsize))
+
+(defbinding (slice-alloc "g_slice_alloc0") () pointer
+ (block-size gsize))
+
+;;;; User data is a mechanism to store references to lisp objects in
+;;;; foreign code
+
+;; TODO: move to gffi
+
+(defvar *user-data-lock* (make-mutex))
+(defvar *user-data* (make-hash-table))
+(defvar *user-data-next-id* 1)
+
+(defun register-user-data (object &optional destroy-function)
+ (check-type destroy-function (or null symbol function))
+ (with-mutex (*user-data-lock*)
+ (setf
+ (gethash *user-data-next-id* *user-data*)
+ (cons object destroy-function))
+ (1- (incf *user-data-next-id*))))
+
+(defun find-user-data (id)
+ (check-type id fixnum)
+ (with-mutex (*user-data-lock*)
+ (multiple-value-bind (user-data p) (gethash id *user-data*)
+ (values (car user-data) p))))
+
+(defun user-data-exists-p (id)
+ (nth-value 1 (find-user-data id)))
+
+(defun update-user-data (id object)
+ (check-type id fixnum)
+ (with-mutex (*user-data-lock*)
+ (multiple-value-bind (user-data exists-p) (gethash id *user-data*)
+ (cond
+ ((not exists-p) (error "User data id ~A does not exist" id))
+ (t
+ (when (cdr user-data)
+ (funcall (cdr user-data) (car user-data)))
+ (setf (car user-data) object))))))
+
+(defun destroy-user-data (id)
+ (check-type id fixnum)
+ (with-mutex (*user-data-lock*)
+ (multiple-value-bind (user-data exists-p) (gethash id *user-data*)
+ (cond
+; ((not exists-p) (error "User data id ~A does not exist" id))
+ (t
+ (when (cdr user-data)
+ (funcall (cdr user-data) (car user-data)))
+ (remhash id *user-data*))))))
+
+(defun take-user-data (id)
+ (check-type id fixnum)
+ (multiple-value-bind (user-data exists-p) (gethash id *user-data*)
+ (cond
+ ((not exists-p) (error "User data id ~A does not exist" id))
+ (t
+ (when (cdr user-data)
+ (funcall (cdr user-data) (car user-data)))
+ (remhash id *user-data*)
+ (car user-data)))))
+
+(defmacro with-user-data ((var object) &body body)
+ `(let ((,var (register-user-data ,object)))
+ (unwind-protect
+ ,@body
+ (destroy-user-data ,var))))
+
+
+(deftype user-data-id () 'pointer-data)
+
+
+;;;; Quarks
+
+(deftype quark () 'unsigned)
+
+(defbinding %quark-from-string () quark
+ (string string))
+
+(defun quark-intern (object)
+ (etypecase object
+ (quark object)
+ (string (%quark-from-string object))
+ (symbol (%quark-from-string (format nil "clg-~A:~A"
+ (package-name (symbol-package object))
+ object)))))
+
+(defbinding quark-to-string () (static string)
+ (quark quark))
+
+
+;;;; Linked list (GList)
+
+(deftype glist (type)
+ `(or null (cons ,type list)))
+
+(defbinding (%glist-prepend "g_list_prepend") () pointer
+ (glist (or null pointer))
+ (nil null))
+
+(defbinding (%glist-reverse "g_list_reverse") () pointer
+ (glist (or null pointer)))
+
+(defun make-glist (element-type list &optional temp-p)
+ (let ((writer (if (functionp element-type)
+ element-type
+ (writer-function element-type :temp temp-p))))
+ (loop
+ for element in list
+ as glist = (%glist-prepend nil) then (%glist-prepend glist)
+ do (funcall writer element glist)
+ finally (return (%glist-reverse glist)))))
(defun glist-next (glist)
(unless (null-pointer-p glist)
- (sap-ref-sap glist +size-of-sap+)))
-
+ (ref-pointer glist #.(size-of 'pointer))))
-(define-foreign ("g_list_free" glist-free) () nil
+;; Also used for gslists
+(defun map-glist (seqtype function glist element-type &optional (ref :read))
+ (let ((reader (if (functionp element-type)
+ element-type
+ (reader-function element-type :ref ref))))
+ (case seqtype
+ ((nil)
+ (loop
+ as element = glist then (glist-next element)
+ until (null-pointer-p element)
+ do (funcall function (funcall reader element))))
+ (list
+ (loop
+ as element = glist then (glist-next element)
+ until (null-pointer-p element)
+ collect (funcall function (funcall reader element))))
+ (t
+ (coerce
+ (loop
+ as element = glist then (glist-next element)
+ until (null-pointer-p element)
+ collect (funcall function (funcall reader element)))
+ seqtype)))))
+
+(defbinding (glist-free "g_list_free") () nil
(glist pointer))
-
-(deftype-method translate-type-spec double-list (type-spec)
- (declare (ignore type-spec))
- 'system-area-pointer)
-
-(deftype-method translate-to-alien double-list (type-spec list &optional copy)
- (declare (ignore copy))
- (let* ((element-type-spec (second (type-expand-to 'double-list type-spec)))
- (to-alien (translate-to-alien element-type-spec 'element t)))
- `(let ((glist (make-pointer 0)))
- (dolist (element ,list glist)
- (setq glist (glist-append glist ,to-alien ,element-type-spec))))))
-
-(deftype-method
- translate-from-alien
- double-list (type-spec glist &optional (alloc :dynamic))
- (let ((element-type-spec (second (type-expand-to 'double-list type-spec))))
- `(let ((glist ,glist)
- (list nil))
- (do ((tmp glist (glist-next tmp)))
- ((null-pointer-p tmp))
- (push
- ,(translate-from-alien
- element-type-spec `(glist-data tmp ,element-type-spec) alloc)
- list))
- ,(when (eq alloc :dynamic)
- '(glist-free glist))
- (nreverse list))))
-
-(deftype-method cleanup-alien double-list (type-spec glist &optional copied)
- (declare (ignore copied))
- (let* ((element-type-spec (second (type-expand-to 'double-list type-spec)))
- (alien-type-spec (translate-type-spec element-type-spec)))
- `(let ((glist ,glist))
- (unless (null-pointer-p glist)
- ,(when (eq alien-type-spec 'system-area-pointer)
- `(do ((tmp glist (glist-next tmp)))
- ((null-pointer-p tmp))
- ,(cleanup-alien
- element-type-spec `(glist-data tmp ,element-type-spec) t)))
- (glist-free glist)))))
-
-
-
-;;; Array
-#|
-(define-foreign ("g_array_new" %array-new) () garray
- (zero-terminated boolean)
- (clear boolean)
- (element-size unsigned-int))
-
-(defun array-new (&key zero-terminated clear (element-size 4) initial-contents)
- (let ((array (%array-new zero-terminated clear element-size)))
- (when initial-contents
- (dolist (element initial-contents)
- (array-append array element)))
- array))
-
-(define-foreign ("g_array_free" %array-free) () none
- (array garray)
- (free-segment boolean))
-
-(defun array-free (array &optional free-data (free-segment t))
- (when free-data
- (dotimes (i (array-get-size array))
- (free (array-get-pointer array i))))
- (%array-free array free-segment))
-
-(defmacro with-array (binding &body body)
- (let ((array (gensym)))
- (destructuring-bind (var &rest args
- &key (free-contents nil) (free-segment t)
- &allow-other-keys )
- binding
- (remf args :free-contents)
- (remf args :free-segment)
- `(let* ((,array (array-new ,@args))
- (,var (array-get-data ,array)))
- (unwind-protect
- ,@body
- (array-free ,array ,free-contents ,free-segment))))))
-
-;; cl-gtk.c
-(define-foreign ("g_array_insert_int" array-insert-int) () garray
- (array garray)
- (index unsigned-int)
- (value int))
-
-(defun array-insert-value (array index value)
- (etypecase value
- (null (array-insert-int array index 0))
- (integer (array-insert-int array index value))
- (string (array-insert-int array index (sap-int (gforeign::pointer-to-sap (%strdup value)))))
- (pointer (array-insert-int array index (sap-int (gforeign::pointer-to-sap value))))))
-
-(defun array-prepend (array value)
- (array-insert-value array 0 value))
-
-(defun array-append (array value)
- (array-insert-value array (array-get-size array) value))
-
-;; cl-gtk.c
-(define-foreign ("g_array_get_int" array-get-int) () int
- (array garray)
- (index unsigned-int))
-
-(defun array-get-pointer (array index)
- (gforeign::sap-to-pointer (int-sap (array-get-int array index))))
-
-;; cl-gtk.c
-(define-foreign ("g_array_get_data" array-get-data) () pointer
- (array garray))
-
-(define-foreign ("g_array_set_size" array-set-size) () garray
- (array garray)
- (size unsigned-int))
-
-;; cl-gtk.c
-(define-foreign ("g_array_get_size" array-get-size) () int
- (array garray))
-|#
\ No newline at end of file
+(defun destroy-glist (glist element-type &optional temp-p)
+ (let ((destroy (if (functionp element-type)
+ element-type
+ (destroy-function element-type :temp temp-p))))
+ (loop
+ as element = glist then (glist-next element)
+ until (null-pointer-p element)
+ do (funcall destroy element)))
+ (glist-free glist))
+
+(define-type-method alien-type ((type glist))
+ (declare (ignore type))
+ (alien-type 'pointer))
+
+(define-type-method argument-type ((type glist))
+ 'list)
+
+(define-type-method return-type ((type glist))
+ 'list)
+
+(define-type-method size-of ((type glist) &key inlined)
+ (assert-not-inlined type inlined)
+ (size-of 'pointer))
+
+(define-type-method type-alignment ((type glist) &key inlined)
+ (assert-not-inlined type inlined)
+ (type-alignment 'pointer))
+
+(define-type-method alien-arg-wrapper ((type glist) var list style form &optional copy-in-p)
+ (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
+ (cond
+ ((and (in-arg-p style) (not (out-arg-p style)))
+ `(with-pointer (,var (make-glist ',element-type ,list ,(not copy-in-p)))
+ (unwind-protect
+ ,form
+ ,(unless copy-in-p
+ `(destroy-glist ,var ',element-type t)))))
+ ((and (in-arg-p style) (out-arg-p style))
+ (let ((glist (make-symbol "GLIST")))
+ `(with-pointer (,glist (make-glist ',element-type ,list ,(not copy-in-p)))
+ (with-pointer (,var ,glist)
+ (unwind-protect
+ ,form
+ ,(unless copy-in-p
+ `(destroy-glist ,glist ',element-type t)))))))
+ ((and (out-arg-p style) (not (in-arg-p style)))
+ `(with-pointer (,var)
+ ,form)))))
+
+(define-type-method to-alien-form ((type glist) list &optional copy-p)
+ (declare (ignore copy-p))
+ (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
+ `(make-glist ',element-type ,list)))
+
+(define-type-method to-alien-function ((type glist) &optional copy-p)
+ (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
+ (values
+ #'(lambda (list)
+ (make-glist element-type list (not copy-p)))
+ (unless copy-p
+ #'(lambda (list glist)
+ (declare (ignore list))
+ (destroy-glist glist element-type t))))))
+
+(define-type-method from-alien-form ((type glist) form &key (ref :free))
+ (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
+ `(let ((glist ,form))
+ (unwind-protect
+ (map-glist 'list #'identity glist ',element-type
+ ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read)))
+ ,(when (eq ref :free)
+ `(destroy-glist glist ',element-type))))))
+
+(define-type-method from-alien-function ((type glist) &key (ref :free))
+ (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
+ (ecase ref
+ (:free
+ #'(lambda (glist)
+ (prog1
+ (map-glist 'list #'identity glist element-type :get)
+ (glist-free glist))))
+ (:copy
+ #'(lambda (glist)
+ (map-glist 'list #'identity glist element-type :read)))
+ ((:static :temp)
+ #'(lambda (glist)
+ (map-glist 'list #'identity glist element-type :peek))))))
+
+(define-type-method writer-function ((type glist) &key temp inlined)
+ (assert-not-inlined type inlined)
+ (let ((element-type (second (type-expand-to 'glist type))))
+ #'(lambda (list location &optional (offset 0))
+ (setf
+ (ref-pointer location offset)
+ (make-glist element-type list temp)))))
+
+(define-type-method reader-function ((type glist) &key (ref :read) inlined)
+ (assert-not-inlined type inlined)
+ (let ((element-type (second (type-expand-to 'glist type))))
+ (ecase ref
+ ((:read :peek)
+ #'(lambda (location &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer location offset))
+ (map-glist 'list #'identity (ref-pointer location offset) element-type ref))))
+ (:get
+ #'(lambda (location &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer location offset))
+ (prog1
+ (map-glist 'list #'identity (ref-pointer location offset) element-type :get)
+ (glist-free (ref-pointer location offset))
+ (setf (ref-pointer location offset) (make-pointer 0)))))))))
+
+(define-type-method destroy-function ((type glist) &key temp inlined)
+ (assert-not-inlined type inlined)
+ (let ((element-type (second (type-expand-to 'glist type))))
+ #'(lambda (location &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer location offset))
+ (destroy-glist (ref-pointer location offset) element-type temp)
+ (setf (ref-pointer location offset) (make-pointer 0))))))
+
+(define-type-method copy-function ((type glist) &key inlined)
+ (assert-not-inlined type inlined)
+ (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
+ (let ((copy-element (copy-function element-type)))
+ #'(lambda (from to &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer from offset))
+ (loop
+ as from-list = (ref-pointer from offset) then (glist-next from-list)
+ as to-list = (%glist-prepend nil) then (%glist-prepend to-list)
+ do (funcall copy-element from-list to-list)
+ while (glist-next from-list)
+ finally (setf (ref-pointer to offset) (%glist-reverse to-list))))))))
+
+
+;;;; Single linked list (GSList)
+
+(deftype gslist (type) `(or null (cons ,type list)))
+
+(defbinding (%gslist-prepend "g_slist_prepend") () pointer
+ (gslist pointer)
+ (nil null))
+
+(defbinding (%gslist-append "g_slist_append") () pointer
+ (glist (or null pointer))
+ (nil null))
+
+
+(defun make-gslist (element-type list &optional temp-p)
+ (let ((writer (if (functionp element-type)
+ element-type
+ (writer-function element-type :temp temp-p))))
+ (loop
+ for element in (reverse list)
+ as gslist = (%gslist-prepend (make-pointer 0)) then (%gslist-prepend gslist)
+ do (funcall writer element gslist)
+ finally (return gslist))))
+
+(defbinding (gslist-free "g_slist_free") () nil
+ (gslist pointer))
+
+(defun destroy-gslist (gslist element-type &optional temp-p)
+ (loop
+ with destroy = (destroy-function element-type :temp temp-p)
+ as element = gslist then (glist-next element)
+ until (null-pointer-p element)
+ do (funcall destroy element 0))
+ (gslist-free gslist))
+
+(define-type-method alien-type ((type gslist))
+ (declare (ignore type))
+ (alien-type 'pointer))
+
+(define-type-method argument-type ((type gslist))
+ 'list)
+
+(define-type-method return-type ((type gslist))
+ 'list)
+
+(define-type-method size-of ((type gslist) &key inlined)
+ (assert-not-inlined type inlined)
+ (size-of 'pointer))
+
+(define-type-method type-alignment ((type gslist) &key inlined)
+ (assert-not-inlined type inlined)
+ (type-alignment 'pointer))
+
+(define-type-method alien-arg-wrapper ((type gslist) var list style form &optional copy-in-p)
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ (cond
+ ((and (in-arg-p style) (not (out-arg-p style)))
+ `(with-pointer (,var (make-gslist ',element-type ,list ,(not copy-in-p)))
+ (unwind-protect
+ ,form
+ ,(unless copy-in-p
+ `(destroy-gslist ,var ',element-type t)))))
+ ((and (in-arg-p style) (out-arg-p style))
+ (let ((gslist (make-symbol "GSLIST")))
+ `(with-pointer (,gslist (make-gslist ',element-type ,list ,(not copy-in-p)))
+ (with-pointer (,var ,gslist)
+ (unwind-protect
+ ,form
+ ,(unless copy-in-p
+ `(destroy-gslist ,gslist ',element-type t)))))))
+ ((and (out-arg-p style) (not (in-arg-p style)))
+ `(with-pointer (,var)
+ ,form)))))
+
+(define-type-method to-alien-form ((type gslist) list &optional copy-p)
+ (declare (ignore copy-p))
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ `(make-gslist ',element-type ,list)))
+
+(define-type-method to-alien-function ((type gslist) &optional copy-p)
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ (values
+ #'(lambda (list)
+ (make-gslist element-type list (not copy-p)))
+ (unless copy-p
+ #'(lambda (list gslist)
+ (declare (ignore list))
+ (destroy-gslist gslist element-type t))))))
+
+(define-type-method from-alien-form ((type gslist) form &key (ref :free))
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ `(let ((gslist ,form))
+ (unwind-protect
+ (map-glist 'list #'identity gslist ',element-type
+ ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read)))
+ ,(when (eq ref :free)
+ `(destroy-gslist gslist ',element-type))))))
+
+(define-type-method from-alien-function ((type gslist) &key (ref :free))
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ (ecase ref
+ (:free
+ #'(lambda (glist)
+ (prog1
+ (map-glist 'list #'identity glist element-type :get)
+ (gslist-free glist))))
+ (:copy
+ #'(lambda (glist)
+ (map-glist 'list #'identity glist element-type :read)))
+ ((:static :temp)
+ #'(lambda (glist)
+ (map-glist 'list #'identity glist element-type :peek))))))
+
+(define-type-method writer-function ((type gslist) &key temp inlined)
+ (assert-not-inlined type inlined)
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ (let ((element-writer (writer-function element-type :temp temp)))
+ #'(lambda (list location &optional (offset 0))
+ (setf
+ (ref-pointer location offset)
+ (make-gslist element-writer list))))))
+
+(define-type-method reader-function ((type gslist) &key (ref :read) inlined)
+ (assert-not-inlined type inlined)
+ (let ((element-type (second (type-expand-to 'gslist type))))
+ (ecase ref
+ ((:read :peek)
+ #'(lambda (location &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer location offset))
+ (map-glist 'list #'identity (ref-pointer location offset) element-type ref))))
+ (:get
+ #'(lambda (location &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer location offset))
+ (prog1
+ (map-glist 'list #'identity (ref-pointer location offset) element-type :get)
+ (gslist-free (ref-pointer location offset))
+ (setf (ref-pointer location offset) (make-pointer 0)))))))))
+
+(define-type-method destroy-function ((type gslist) &key temp inlined)
+ (assert-not-inlined type inlined)
+ (let ((element-type (second (type-expand-to 'gslist type))))
+ #'(lambda (location &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer location offset))
+ (destroy-gslist (ref-pointer location offset) element-type temp)
+ (setf (ref-pointer location offset) (make-pointer 0))))))
+
+(define-type-method copy-function ((type gslist) &key inlined)
+ (assert-not-inlined type inlined)
+ (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
+ (let ((copy-element (copy-function element-type)))
+ #'(lambda (from to &optional (offset 0))
+ (unless (null-pointer-p (ref-pointer from offset))
+ (loop
+ as from-list = (ref-pointer from offset)
+ then (glist-next from-list)
+ as to-list = (setf (ref-pointer to offset) (%gslist-append nil))
+ then (%gslist-append to-list)
+ do (funcall copy-element from-list to-list)
+ while (glist-next from-list)))))))
~mdw / clg / blobdiff