User data mechanism protected by locking

[clg] / glib / gparam.lisp

diff --git a/glib/gparam.lisp b/glib/gparam.lisp
index 22b71f41eb1eeb61cf56b920e068a429b938b9df..ebd38d794dab4c21e4fc88669b0bf4e15098fef0 100644 (file)
--- a/glib/gparam.lisp
+++ b/glib/gparam.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: gparam.lisp,v 1.22 2007/02/23 12:50:54 espen Exp $
+;; $Id: gparam.lisp,v 1.24 2007/06/01 06:18:59 espen Exp $
 
 (in-package "GLIB")
 
@@ -33,7 +33,7 @@   (defbinding (size-of-gvalue "size_of_gvalue") () unsigned-int))
 
 (defconstant +gvalue-size+ (size-of-gvalue))
 (defconstant +gvalue-value-offset+ 
-  (max (size-of 'type-number) (type-alignment 'type-number)))
+  (max (size-of 'type-number) (type-alignment '(unsigned-byte 64))))
 
 (defbinding (%gvalue-init "g_value_init") () nil
   (value gvalue)
@@ -61,7 +61,18 @@ (defun gvalue-free (gvalue &optional (unset-p t))
     (deallocate-memory gvalue)))
 
 (defun gvalue-type (gvalue)
-  (type-from-number (ref-type-number gvalue)))
+  ;; We need to search for the for the most specific known type
+  ;; because internal types, unknown to Lisp, may be passed in GValues
+  (labels ((find-most-specific-known-type (type)
+            (or 
+             (type-from-number type)
+             (let ((parent (type-parent type)))
+               (unless (zerop parent)
+                 (find-most-specific-known-type parent))))))
+    (or
+     (find-most-specific-known-type (ref-type-number gvalue))
+     ;; This will signal an error if the type hierarchy is unknown
+     (type-from-number (ref-type-number gvalue) t))))
 
 (defun gvalue-get (gvalue)
   (funcall (reader-function (gvalue-type gvalue))