Fixed alignment problem in win32

[clg] / glib / gobject.lisp

diff --git a/glib/gobject.lisp b/glib/gobject.lisp
index 6543d2df109ca4de59a1a565e55a0ad3e6535def..e9cbffd1b3b9e5122154fe033a949f6c6cf2edfb 100644 (file)
--- 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 1.56 2007-05-10 20:25:30 espen Exp $
+;; $Id: gobject.lisp,v 1.57 2007-06-01 10:46:15 espen Exp $
 
 (in-package "GLIB")
 
@@ -271,6 +271,10 @@ (defmethod make-proxy-instance ((class gobject-class) location &rest initargs)
       (error "Objects of class ~A has instance slots and should only be created with MAKE-INSTANCE" class)
     (call-next-method)))
 
+(defparameter +gparameter-gvalue-offset+
+  (max (size-of 'pointer) (type-alignment '(unsigned-byte 64))))
+(defparameter +gparameter-size+
+  (+ +gparameter-gvalue-offset+ +gvalue-size+))
 
 (defmethod allocate-foreign ((object gobject) &rest initargs)
   (let ((init-slots ())) 
@@ -296,18 +300,17 @@ (defmethod allocate-foreign ((object gobject) &rest initargs)
 
     (cond
      (init-slots
-      (let* ((pointer-size (size-of 'pointer))
-            (element-size (+ +gvalue-size+ pointer-size))
-            (num-slots (length init-slots)))
-       (with-memory (params (* num-slots element-size))
+      (let* ((num-slots (length init-slots)))
+       (with-memory (params (* num-slots +gparameter-size+))
           (loop
           with string-writer = (writer-function 'string)
           for (slotd . value) in init-slots
-          as param = params then (pointer+ param element-size)
+          as param = params then (pointer+ param +gparameter-size+)
           as type = (slot-definition-type slotd)
           as pname = (slot-definition-pname slotd)
           do (funcall string-writer pname param)
-              (gvalue-init (pointer+ param pointer-size) type value))
+             (gvalue-init 
+              (pointer+ param +gparameter-gvalue-offset+) type value))
 
          (unwind-protect
              (%gobject-newv (type-number-of object) num-slots params)
@@ -315,10 +318,10 @@ (defmethod allocate-foreign ((object gobject) &rest initargs)
            (loop
             with string-destroy = (destroy-function 'string)
             repeat num-slots
-            as param = params then (pointer+ param element-size)
+            as param = params then (pointer+ param +gparameter-size+)
             do (funcall string-destroy param)
-               (gvalue-unset (pointer+ param pointer-size)))))))
-
+               (gvalue-unset (pointer+ param +gparameter-gvalue-offset+)))))))
+     
      (t (%gobject-new (type-number-of object))))))