X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/blobdiff_plain/457f874e850eb293e7f6d2a915143be5c91133c0..050f6c9f2af72fa8a1114b02e823118ef258e08a:/glib/gcallback.lisp

diff --git a/glib/gcallback.lisp b/glib/gcallback.lisp
index 4f65bfc..1b2e54f 100644
--- a/glib/gcallback.lisp
+++ b/glib/gcallback.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: gcallback.lisp,v 1.39 2007-01-07 20:03:51 espen Exp $
+;; $Id: gcallback.lisp,v 1.43 2007-06-15 12:03:26 espen Exp $
 
 (in-package "GLIB")
 
@@ -40,22 +40,22 @@ (defun register-callback-function (function)
 (define-callback signal-handler-marshal nil
     ((gclosure gclosure) (return-value gvalue) (n-params unsigned-int) 
      (param-values pointer) (invocation-hint pointer) 
-     (callback-id unsigned-long))
+     (callback-id pointer-data))
   (declare (ignore gclosure invocation-hint))
   (callback-trampoline #'invoke-signal-handler callback-id n-params param-values return-value))
 
-;; Callback marshaller  for class handlers
+;; Callback marshaller for class handlers
 (define-callback class-handler-marshal nil
     ((gclosure gclosure) (return-value gvalue) (n-params unsigned-int) 
      (param-values pointer) (invocation-hint pointer) 
-     (callback-id unsigned-long))
+     (callback-id pointer-data))
   (declare (ignore gclosure invocation-hint))
   (callback-trampoline #'invoke-callback callback-id n-params param-values return-value))
 
 ;; Callback marshaller for emission hooks
 (define-callback emission-hook-marshal nil
     ((invocation-hint pointer) (n-params unsigned-int) (param-values pointer)
-     (callback-id unsigned-long))
+     (callback-id pointer-data))
   (declare (ignore invocation-hint))
   (callback-trampoline #'invoke-callback callback-id n-params param-values))
 
@@ -87,7 +87,7 @@ (defun invoke-signal-handler (callback-id return-type &rest args)
     (signal-handler-block instance handler-id)
     (unwind-protect
 	(restart-case (apply #'invoke-callback callback-id nil args)
-	  (abort () :report "Disconnect and exit signal handler"
+	  (disconnect () :report "Disconnect and exit signal handler"
 	    (when (signal-handler-is-connected-p instance handler-id)
 	      (signal-handler-disconnect instance handler-id))
 	    (values nil t))))
@@ -118,8 +118,18 @@ (defconstant +priority-low+ 300)
 (defbinding source-remove () boolean
   (tag unsigned-int))
 
-(define-callback source-callback-marshal nil ((callback-id unsigned-int))
-  (callback-trampoline #'invoke-callback callback-id 0 nil))
+(define-callback source-callback-marshal boolean ((callback-id unsigned-int))
+  (invoke-source-callback callback-id))
+
+(defun invoke-source-callback (callback-id)
+  (restart-case (funcall (find-user-data callback-id))
+    (remove () :report "Exit and remove source callback"
+      nil)
+    (continue () :report "Return from source callback"
+      t)
+    (re-invoke nil :report "Re-invoke source callback"
+      (invoke-source-callback callback-id))))
+
 
 (defbinding (timeout-add "g_timeout_add_full")
     (interval function &optional (priority +priority-default+)) unsigned-int 
@@ -352,7 +362,7 @@ (defbinding signal-handler-find () unsigned-long
   (detail quark)
   (closure (or null pointer))
   (func (or null pointer))
-  (data unsigned-long))
+  (data pointer-data))
 
 (defbinding signal-handler-disconnect () nil
   (instance ginstance)
@@ -377,7 +387,7 @@ (defun callback-closure-new (callback-id callback destroy-notify)
     (closure-set-meta-marshal gclosure callback-id callback)
     gclosure))
 
-(defun make-callback-closure (function marshaller)
+(defun make-callback-closure (function &optional (marshaller signal-handler-marshal))
   (let ((callback-id (register-callback-function function)))
     (values
      (callback-closure-new callback-id marshaller user-data-destroy-callback)
@@ -550,8 +560,8 @@ (defmacro define-callback-marshal (name return-type args &key (callback-id :last
 			  (t (second arg))))))
     `(define-callback ,name ,return-type 
        ,(ecase callback-id
-	  (:first `((callback-id unsigned-int) ,@(mapcar #'list names types)))
-	  (:last `(,@(mapcar #'list names types) (callback-id unsigned-int))))
+	  (:first `((callback-id pointer-data) ,@(mapcar #'list names types)))
+	  (:last `(,@(mapcar #'list names types) (callback-id pointer-data))))
        (declare (ignore ,@ignore))
        (invoke-callback callback-id ',return-type ,@(nreverse params)))))