;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-;; $Id: glib.lisp,v 1.2 2000-08-15 23:25:18 espen Exp $
+;; $Id: glib.lisp,v 1.13 2004-10-27 14:58:59 espen Exp $
(in-package "GLIB")
+
(use-prefix "g")
+;(load-shared-library "libglib-2.0")
;;;; Memory management
-(define-foreign ("g_malloc0" allocate-memory) () pointer
+(defbinding (allocate-memory "g_malloc0") () pointer
(size unsigned-long))
-(define-foreign ("g_realloc" reallocate-memory) () pointer
+(defbinding (reallocate-memory "g_realloc") () pointer
(address pointer)
(size unsigned-long))
-(define-foreign ("g_free" deallocate-memory) () nil
+(defbinding (deallocate-memory "g_free") () nil
(address pointer))
+;(defun deallocate-memory (address)
+; (declare (ignore address)))
(defun copy-memory (from length &optional (to (allocate-memory length)))
(kernel:system-area-copy from 0 to 0 (* 8 length))
to)
+;;;; User data mechanism
+
+(internal *user-data* *user-data-count*)
+
+(declaim (fixnum *user-data-count*))
+
+(defvar *destroy-notify* (system:foreign-symbol-address "destroy_notify"))
+(defvar *user-data* (make-hash-table))
+(defvar *user-data-count* 0)
+
+(defun register-user-data (object &optional destroy-function)
+ (check-type destroy-function (or null symbol function))
+ (incf *user-data-count*)
+ (setf
+ (gethash *user-data-count* *user-data*)
+ (cons object destroy-function))
+ *user-data-count*)
+
+(defun find-user-data (id)
+ (check-type id fixnum)
+ (multiple-value-bind (user-data p) (gethash id *user-data*)
+ (values (car user-data) p)))
+
+(defun destroy-user-data (id)
+ (check-type id fixnum)
+ (let ((user-data (gethash id *user-data*)))
+ (when (cdr user-data)
+ (funcall (cdr user-data) (car user-data))))
+ (remhash id *user-data*))
+
+
+
+;;;; Quarks
+
+(internal *quark-counter* *quark-from-object* *quark-to-object*)
+
+(deftype quark () 'unsigned)
+
+;(defbinding %quark-get-reserved () quark)
+
+(defbinding %quark-from-string () quark
+ (string string))
-;;;; Linked list
+(defvar *quark-counter* 0)
-(deftype glist () 'pointer)
-(deftype double-list (type) `(or (null (cons ,type list))))
+(defun %quark-get-reserved ()
+ ;; The string is just a dummy
+ (%quark-from-string (format nil "#@£$%&-quark-~D" (incf *quark-counter*))))
+(defvar *quark-from-object* (make-hash-table))
+(defvar *quark-to-object* (make-hash-table))
-(define-foreign ("g_list_append" %glist-append) () glist
- (glist glist)
+(defun quark-from-object (object &key (test #'eq))
+ (let ((hash-code (sxhash object)))
+ (or
+ (assoc-ref object (gethash hash-code *quark-from-object*) :test test)
+ (let ((quark (%quark-get-reserved)))
+ (setf
+ (gethash hash-code *quark-from-object*)
+ (append
+ (gethash hash-code *quark-from-object*)
+ (list (cons object quark))))
+ (setf (gethash quark *quark-to-object*) object)
+ quark))))
+
+(defun quark-to-object (quark)
+ (gethash quark *quark-to-object*))
+
+(defun remove-quark (quark)
+ (let* ((object (gethash quark *quark-to-object*))
+ (hash-code (sxhash object)))
+ (remhash quark *quark-to-object*)
+ (unless (setf
+ (gethash hash-code *quark-from-object*)
+ (assoc-delete object (gethash hash-code *quark-from-object*)))
+ (remhash hash-code *quark-from-object*))))
+
+
+
+;;;; Linked list (GList)
+
+(deftype glist (type) `(or (null (cons ,type list))))
+
+(defbinding (%glist-append-unsigned "g_list_append") () pointer
+ (glist pointer)
(data unsigned))
+(defbinding (%glist-append-signed "g_list_append") () pointer
+ (glist pointer)
+ (data signed))
+
+(defbinding (%glist-append-sap "g_list_append") () pointer
+ (glist pointer)
+ (data pointer))
+
(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)))))
-
+ (unsigned `(%glist-append-unsigned ,glist ,value))
+ (signed `(%glist-append-signed ,glist ,value))
+ (system-area-pointer `(%glist-append-sap ,glist ,value))))
(defmacro glist-data (glist type-spec)
(ecase (first (mklist (translate-type-spec type-spec)))
(signed `(sap-ref-signed ,glist 0))
(system-area-pointer `(sap-ref-sap ,glist 0))))
-
(defun glist-next (glist)
(unless (null-pointer-p glist)
(sap-ref-sap glist +size-of-sap+)))
-
-(define-foreign ("g_list_free" glist-free) () nil
+(defbinding (glist-free "g_list_free") () nil
(glist pointer))
+(deftype-method translate-type-spec glist (type-spec)
+ (declare (ignore type-spec))
+ (translate-type-spec 'pointer))
-(deftype-method translate-type-spec double-list (type-spec)
+(deftype-method size-of glist (type-spec)
(declare (ignore type-spec))
- 'system-area-pointer)
+ (size-of '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)))
+(deftype-method translate-to-alien glist (type-spec list &optional weak-ref)
+ (declare (ignore weak-ref))
+ (let* ((element-type (second (type-expand-to 'glist type-spec)))
+ (element (translate-to-alien element-type 'element)))
`(let ((glist (make-pointer 0)))
(dolist (element ,list glist)
- (setq glist (glist-append glist ,to-alien ,element-type-spec))))))
+ (setq glist (glist-append glist ,element ,element-type))))))
-(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))))
+(deftype-method translate-from-alien
+ glist (type-spec glist &optional weak-ref)
+ (let ((element-type (second (type-expand-to 'glist 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)
+ element-type `(glist-data tmp ,element-type) weak-ref)
list))
- ,(when (eq alloc :dynamic)
+ ,(unless weak-ref
'(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)))
+(deftype-method cleanup-alien glist (type-spec glist &optional weak-ref)
+ (when weak-ref
+ (unreference-alien type-spec glist)))
+
+(deftype-method unreference-alien glist (type-spec glist)
+ (let ((element-type (second (type-expand-to 'glist type-spec))))
`(let ((glist ,glist))
(unless (null-pointer-p glist)
- ,(when (eq alien-type-spec 'system-area-pointer)
+ ,(unless (atomic-type-p element-type)
`(do ((tmp glist (glist-next tmp)))
((null-pointer-p tmp))
- ,(cleanup-alien
- element-type-spec `(glist-data tmp ,element-type-spec) t)))
+ ,(unreference-alien
+ element-type `(glist-data tmp ,element-type))))
(glist-free glist)))))
+;;;; Single linked list (GSList)
+
+(deftype gslist (type) `(or (null (cons ,type list))))
-;;; 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
+(defbinding (%gslist-prepend-unsigned "g_slist_prepend") () pointer
+ (gslist pointer)
+ (data unsigned))
+
+(defbinding (%gslist-prepend-signed "g_slist_prepend") () pointer
+ (gslist pointer)
+ (data signed))
+
+(defbinding (%gslist-prepend-sap "g_slist_prepend") () pointer
+ (gslist pointer)
+ (data pointer))
+
+(defmacro gslist-prepend (gslist value type-spec)
+ (ecase (first (mklist (translate-type-spec type-spec)))
+ (unsigned `(%gslist-prepend-unsigned ,gslist ,value))
+ (signed `(%gslist-prepend-signed ,gslist ,value))
+ (system-area-pointer `(%gslist-prepend-sap ,gslist ,value))))
+
+(defbinding (gslist-free "g_slist_free") () nil
+ (gslist pointer))
+
+(deftype-method translate-type-spec gslist (type-spec)
+ (declare (ignore type-spec))
+ (translate-type-spec 'pointer))
+
+(deftype-method size-of gslist (type-spec)
+ (declare (ignore type-spec))
+ (size-of 'pointer))
+
+(deftype-method translate-to-alien gslist (type-spec list &optional weak-ref)
+ (declare (ignore weak-ref))
+ (let* ((element-type (second (type-expand-to 'gslist type-spec)))
+ (element (translate-to-alien element-type 'element)))
+ `(let ((gslist (make-pointer 0)))
+ (dolist (element (reverse ,list) gslist)
+ (setq gslist (gslist-prepend gslist ,element ,element-type))))))
+
+(deftype-method translate-from-alien
+ gslist (type-spec gslist &optional weak-ref)
+ (let ((element-type (second (type-expand-to 'gslist type-spec))))
+ `(let ((gslist ,gslist)
+ (list nil))
+ (do ((tmp gslist (glist-next tmp)))
+ ((null-pointer-p tmp))
+ (push
+ ,(translate-from-alien
+ element-type `(glist-data tmp ,element-type) weak-ref)
+ list))
+ ,(unless weak-ref
+ '(gslist-free gslist))
+ (nreverse list))))
+
+(deftype-method cleanup-alien gslist (type-spec gslist &optional weak-ref)
+ (when weak-ref
+ (unreference-alien type-spec gslist)))
+
+(deftype-method unreference-alien gslist (type-spec gslist)
+ (let ((element-type (second (type-expand-to 'gslist type-spec))))
+ `(let ((gslist ,gslist))
+ (unless (null-pointer-p gslist)
+ ,(unless (atomic-type-p element-type)
+ `(do ((tmp gslist (glist-next tmp)))
+ ((null-pointer-p tmp))
+ ,(unreference-alien
+ element-type `(glist-data tmp ,element-type))))
+ (gslist-free gslist)))))
+
+
+
+;;; Vector
+
+(defvar *magic-end-of-array* (allocate-memory 1))
+
+(deftype-method translate-type-spec vector (type-spec)
+ (declare (ignore type-spec))
+ (translate-type-spec 'pointer))
+
+(deftype-method size-of vector (type-spec)
+ (declare (ignore type-spec))
+ (size-of 'pointer))
+
+(deftype-method translate-to-alien vector (type-spec vector &optional weak-ref)
+ (declare (ignore weak-ref))
+ (destructuring-bind (element-type &optional (length '*))
+ (cdr (type-expand-to 'vector type-spec))
+ (let* ((element-size (size-of element-type))
+ (size (cond
+ ((not (eq length '*))
+ (* element-size length))
+ ((not (atomic-type-p element-type))
+ `(* ,element-size (1+ (length vector))))
+ (t
+ `(* ,element-size (length vector))))))
+
+ `(let ((vector ,vector))
+ (let ((c-vector (allocate-memory ,size)))
+ (dotimes (i ,(if (eq length '*) '(length vector) length))
+ (setf
+ (,(sap-ref-fname element-type) c-vector (* i ,element-size))
+ ,(translate-to-alien element-type '(aref vector i))))
+ ,(when (and
+ (eq length '*)
+ (not (atomic-type-p element-type)))
+ `(setf
+ (sap-ref-sap c-vector (* (length vector) ,element-size))
+ *magic-end-of-array*))
+ c-vector)))))
+
+(deftype-method translate-from-alien
+ vector (type-spec c-array &optional weak-ref)
+ (destructuring-bind (element-type &optional (length '*))
+ (cdr (type-expand-to 'vector type-spec))
+ (when (eq length '*)
+ (error "Can't use vectors of variable length as return type"))
+ (let ((element-size (size-of element-type)))
+ `(let ((c-array ,c-array)
+ (vector (make-array ,length :element-type ',element-type)))
+ (dotimes (i ,length)
+ (setf
+ (aref vector i)
+ ,(translate-from-alien
+ element-type
+ `(,(sap-ref-fname element-type) c-array (* i ,element-size))
+ weak-ref)))
+ ,(unless weak-ref
+ '(deallocate-memory c-vector))
+ vector))))
+
+
+(deftype-method cleanup-alien vector (type-spec c-vector &optional weak-ref)
+ (when weak-ref
+ (unreference-alien type-spec c-vector)))
+
+(deftype-method unreference-alien vector (type-spec c-vector)
+ (destructuring-bind (element-type &optional (length '*))
+ (cdr (type-expand-to 'vector type-spec))
+ `(let ((c-vector ,c-vector))
+ (unless (null-pointer-p c-vector)
+ ,(unless (atomic-type-p element-type)
+ (let ((element-size (size-of element-type)))
+ (if (not (eq length '*))
+ `(dotimes (i ,length)
+ (unreference-alien
+ element-type (sap-ref-sap c-vector (* i ,element-size))))
+ `(do ((offset 0 (+ offset ,element-size)))
+ ((sap=
+ (sap-ref-sap c-vector offset)
+ *magic-end-of-array*))
+ ,(unreference-alien
+ element-type '(sap-ref-sap c-vector offset))))))
+ (deallocate-memory c-vector)))))
+
+
+(defun map-c-array (seqtype function location element-type length)
+ (let ((reader (intern-reader-function element-type))
+ (size (size-of element-type)))
+ (case seqtype
+ ((nil)
+ (dotimes (i length)
+ (funcall function (funcall reader location (* i size)))))
+ (list
+ (let ((list nil))
+ (dotimes (i length)
+ (push (funcall function (funcall reader location (* i size))) list))
+ (nreverse list)))
+ (t
+ (let ((sequence (make-sequence seqtype length)))
+ (dotimes (i length)
+ (setf
+ (elt sequence i)
+ (funcall function (funcall reader location (* i size)))))
+ sequence)))))
~mdw / clg / blobdiff