Shared library component improved

[clg] / glib / gboxed.lisp

diff --git a/glib/gboxed.lisp b/glib/gboxed.lisp
index 31c236121d4ec9a5bf1ddde8bad100a17cd4fa33..64ea49fcbb8bfcf0a75e8df96bcd5fbfdc978514 100644 (file)
--- a/glib/gboxed.lisp
+++ b/glib/gboxed.lisp
@@ -15,56 +15,71 @@
 ;; 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: gboxed.lisp,v 1.9 2002-03-19 17:06:11 espen Exp $
+;; $Id: gboxed.lisp,v 1.14 2005-02-01 15:24:52 espen Exp $
 
 (in-package "GLIB")
 
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
-  (init-types-in-library "libgobject-2.0.so")
-  (defclass boxed (proxy)
-    ()
-    (:metaclass proxy-class)
-    (:copy %boxed-copy)
-    (:free %boxed-free)))
-
-(defbinding %boxed-copy (type location) pointer
-  ((find-type-number type) type-number)
-  (location pointer))
+  (init-types-in-library #.(concatenate 'string
+                         (pkg-config:pkg-variable "glib-2.0" "libdir")
+                         "/libgobject-2.0.so")))
 
-(defbinding %boxed-free (type location) nil
-  ((find-type-number type) type-number)
-  (location pointer))
+(defclass boxed (struct)
+  ()
+  (:metaclass struct-class))
+
+(defmethod instance-finalizer ((instance boxed))
+  (let ((location (proxy-location instance))
+       (type-number (type-number-of instance)))
+    #'(lambda ()
+       (remove-cached-instance location)
+       (%boxed-free type-number location))))
 
 
 ;;;; Metaclass for boxed classes
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
-  (defclass boxed-class (proxy-class))
+  (defclass boxed-class (struct-class)
+    ())
 
+  (defmethod validate-superclass ((class boxed-class) (super standard-class))
+    (subtypep (class-name super) 'boxed)))
 
-  (defmethod shared-initialize ((class boxed-class) names
-                               &rest initargs &key name alien-name)
-    (declare (ignore initargs names))
-    (call-next-method)
-    
-    (let* ((class-name (or name (class-name class)))
-          (type-number
-           (find-type-number
-            (or (first alien-name) (default-alien-type-name class-name)))))
-      (register-type class-name type-number)))
 
+(defmethod shared-initialize ((class boxed-class) names
+                             &rest initargs &key name alien-name)
+  (declare (ignore initargs names))
+  (call-next-method)
+  
+  (let* ((class-name (or name (class-name class)))
+        (type-number
+         (find-type-number
+          (or (first alien-name) (default-alien-type-name class-name)))))
+    (register-type class-name type-number)))
 
-  (defmethod validate-superclass
-    ((class boxed-class) (super pcl::standard-class))
-    (subtypep (class-name super) 'boxed)))
+
+(defbinding %boxed-copy () pointer
+  (type-number type-number)
+  (location pointer))
+
+(defbinding %boxed-free () nil
+  (type-number type-number)
+  (location pointer))
+
+(defmethod reference-foreign ((class boxed-class) location)
+  (%boxed-copy (find-type-number class) location))
+
+(defmethod unreference-foreign ((class boxed-class) location)
+  (%boxed-free (find-type-number class) location))
 
 
 ;;;; 
 
-(defun expand-boxed-type (type-number &optional slots)
+(defun expand-boxed-type (type-number forward-p slots)
   `(defclass ,(type-from-number type-number) (boxed)
-     ,slots
+     ,(unless forward-p
+       slots)
      (:metaclass boxed-class)
      (:alien-name ,(find-type-name type-number))))
 
@@ -72,31 +87,31 @@ (register-derivable-type 'boxed "GBoxed" 'expand-boxed-type)
 
 ;;;; Special boxed types
 
-(defclass gstring (boxed)
-  ()
-  (:metaclass boxed-class)
-  (:alien-name "GString"))
-
-(deftype-method translate-from-alien
-    gstring (type-spec location &optional weak-ref)
-  `(let ((location ,location))
-     (unless (null-pointer-p location)
-       (prog1
-          (c-call::%naturalize-c-string location)
-        ,(unless weak-ref
-           (unreference-alien type-spec location))))))
-
-(deftype-method translate-to-alien
-    gstring (type-spec string &optional weak-ref)
-  (declare (ignore weak-ref))
-  `(let ((string ,string))
-     ;; Always copy strings to prevent seg fault due to GC
-     (funcall
-      ',(proxy-class-copy (find-class type-spec))
-      ',type-spec
-      (make-pointer (1+ (kernel:get-lisp-obj-address string))))))
-
-(deftype-method cleanup-alien gstring (type-spec c-string &optional weak-ref)
-  (when weak-ref
-    (unreference-alien type-spec c-string)))
+;; (defclass gstring (boxed)
+;;   ()
+;;   (:metaclass boxed-class)
+;;   (:alien-name "GString"))
+
+;; (deftype-method translate-from-alien
+;;     gstring (type-spec location &optional weak-ref)
+;;   `(let ((location ,location))
+;;      (unless (null-pointer-p location)
+;;        (prog1
+;;        (c-call::%naturalize-c-string location)
+;;      ,(unless weak-ref
+;;         (unreference-alien type-spec location))))))
+
+;; (deftype-method translate-to-alien
+;;     gstring (type-spec string &optional weak-ref)
+;;   (declare (ignore weak-ref))
+;;   `(let ((string ,string))
+;;      ;; Always copy strings to prevent seg fault due to GC
+;;      (funcall
+;;       ',(proxy-class-copy (find-class type-spec))
+;;       ',type-spec
+;;       (make-pointer (1+ (kernel:get-lisp-obj-address string))))))
+
+;; (deftype-method cleanup-alien gstring (type-spec c-string &optional weak-ref)
+;;   (when weak-ref
+;;     (unreference-alien type-spec c-string)))