X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/blobdiff_plain/09f6e23711ab7b3b8f713f0cabdaeffcc7c4ac20..cc74b2c987edc3e2bc85413e92f33e2690a32b1c:/glib/gobject.lisp?ds=sidebyside

diff --git a/glib/gobject.lisp b/glib/gobject.lisp
index b1c4351..bd0151f 100644
--- a/glib/gobject.lisp
+++ b/glib/gobject.lisp
@@ -20,7 +20,7 @@
 ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-;; $Id: gobject.lisp,v 1.42 2006-02-04 12:15:32 espen Exp $
+;; $Id: gobject.lisp,v 1.45 2006-02-08 22:10:47 espen Exp $
 
 (in-package "GLIB")
 
@@ -28,6 +28,7 @@ (in-package "GLIB")
 ;;;; Metaclass used for subclasses of gobject
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
+;;   (push :debug-ref-counting *features*)
   (defclass gobject-class (ginstance-class)
     ((instance-slots-p :initform nil
       :documentation "Non NIL if the class has slots with instance allocation")))
@@ -203,10 +204,18 @@ (defmethod shared-initialize :after ((class gobject-class) names &rest initargs)
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
   (defclass gobject (ginstance)
-    ()
+    (#+debug-ref-counting
+     (ref-count :allocation :alien :type int :reader ref-count))
     (:metaclass gobject-class)
     (:gtype "GObject")))
 
+#+debug-ref-counting
+(defmethod print-object ((instance gobject) stream)
+  (print-unreadable-object (instance stream :type t :identity nil)
+    (if (proxy-valid-p instance)
+	(format stream "at 0x~X (~D)" (sap-int (foreign-location instance)) (ref-count instance))
+      (write-string "at \"unbound\"" stream))))
+
 
 (defun initial-add (object function initargs key pkey)
   (loop 
@@ -224,6 +233,12 @@ (defun initial-apply-add (object function initargs key pkey)
 	       initargs key pkey))
 
 
+(defmethod make-proxy-instance ((class gobject-class) location &rest initargs)
+  (declare (ignore location initargs))
+  (if (slot-value class 'instance-slots-p)
+      (error "An object of class ~A has instance slots and should only be created with MAKE-INSTANCE" class)
+    (call-next-method)))
+
 (defmethod initialize-instance :around ((object gobject) &rest initargs)
   (declare (ignore initargs))
   (call-next-method)
@@ -236,7 +251,7 @@ (defmethod initialize-instance :around ((object gobject) &rest initargs)
 
 
 (defmethod initialize-instance ((object gobject) &rest initargs)
-  (unless (slot-boundp object 'location)
+  (unless (proxy-valid-p object)
     ;; Extract initargs which we should pass directly to the GObject
     ;; constructor
     (let* ((slotds (class-slots (class-of object)))
@@ -269,7 +284,7 @@ (defmethod initialize-instance ((object gobject) &rest initargs)
 	     (gvalue-init (sap+ tmp string-size) type value))
 	    (unwind-protect
 		(setf  
-		 (slot-value object 'location) 
+		 (foreign-location object)
 		 (%gobject-newv (type-number-of object) (length args) params))
 	      (loop
 	       repeat (length args)
@@ -278,7 +293,7 @@ (defmethod initialize-instance ((object gobject) &rest initargs)
 	       (gvalue-unset (sap+ tmp string-size)))
 	      (deallocate-memory params)))
 	(setf  
-	 (slot-value object 'location) 
+	 (foreign-location object)
 	 (%gobject-new (type-number-of object))))))
 
   (apply #'call-next-method object initargs))