;; 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 1.35 2006-06-07 13:16:11 espen Exp $
+;; $Id: gcallback.lisp,v 1.36 2006-07-14 10:51:07 espen Exp $
(in-package "GLIB")
(check-type function (or null symbol function))
(register-user-data function))
-;; Callback marshal for regular signal handlers
-(define-callback closure-marshal nil
+;; Callback marshaller for regular signal handlers
+(define-callback signal-handler-marshal nil
((gclosure gclosure) (return-value gvalue) (n-params unsigned-int)
(param-values pointer) (invocation-hint pointer)
- (callback-id unsigned-int))
+ (callback-id unsigned-long))
(declare (ignore gclosure invocation-hint))
- (callback-trampoline callback-id n-params param-values return-value))
+ (callback-trampoline #'invoke-signal-handler callback-id n-params param-values return-value))
-;; Callback function for emission hooks
-(define-callback signal-emission-hook nil
+;; 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))
+ (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-int))
+ (callback-id unsigned-long))
(declare (ignore invocation-hint))
- (callback-trampoline callback-id n-params param-values))
+ (callback-trampoline #'invoke-callback callback-id n-params param-values))
-(defun callback-trampoline (callback-id n-params param-values &optional
- (return-value (make-pointer 0)))
+(defun callback-trampoline (restart-wrapper callback-id n-params param-values
+ &optional (return-value (make-pointer 0)))
(let* ((return-type (unless (null-pointer-p return-value)
(gvalue-type return-value)))
(args (loop
for offset from 0 by +gvalue-size+
collect (gvalue-peek (pointer+ param-values offset)))))
(unwind-protect
- (let ((result (apply #'invoke-callback callback-id return-type args)))
- (when return-type
+ (multiple-value-bind (result aborted-p)
+ (apply restart-wrapper callback-id nil args)
+ (when (and return-type (not aborted-p))
(gvalue-set return-value result)))
;; TODO: this should be made more general, by adding a type
- ;; method to return invalidate functions.
+ ;; method to return invalidating functions.
(loop
for arg in args
when (typep arg 'struct)
do (invalidate-instance arg)))))
+(defun invoke-signal-handler (callback-id return-type &rest args)
+ (declare (ignore return-type))
+ (let* ((instance (first args))
+ (handler-id (signal-handler-find instance '(:data)
+ 0 0 nil nil callback-id)))
+ (signal-handler-block instance handler-id)
+ (unwind-protect
+ (restart-case (apply #'invoke-callback callback-id nil args)
+ (abort () :report "Disconnect and exit signal handler"
+ (when (signal-handler-is-connected-p instance handler-id)
+ (signal-handler-disconnect instance handler-id))
+ (values nil t))))
+ (when (signal-handler-is-connected-p instance handler-id)
+ (signal-handler-unblock instance handler-id))))
(defun invoke-callback (callback-id return-type &rest args)
- (restart-case
- (apply (find-user-data callback-id) args)
+ (restart-case (apply (find-user-data callback-id) args)
(continue nil :report "Return from callback function"
- (when return-type
- (format *query-io* "Enter return value of type ~S: " return-type)
- (force-output *query-io*)
- (eval (read *query-io*))))
+ (cond
+ (return-type
+ (format *query-io* "Enter return value of type ~S: " return-type)
+ (force-output *query-io*)
+ (eval (read *query-io*)))
+ (t (values nil t))))
(re-invoke nil :report "Re-invoke callback function"
- (apply #'invoke-callback callback-id return-type args))))
+ (apply #'invoke-callback callback-id return-type args))))
;;;; Timeouts and idle functions
'(flags :run-first :run-last :run-cleanup :no-recurse
:detailed :action :no-hooks))
+ (define-flags-type signal-match-type
+ :id :detail :closure :func :data :unblocked)
+
(defclass signal-query (struct)
((id :allocation :alien :type unsigned-int)
(name :allocation :alien :type (copy-of string))
(if callback-id
(update-user-data callback-id function)
(multiple-value-bind (callback-closure callback-id)
- (make-callback-closure function)
+ (make-callback-closure function class-handler-marshal)
(%signal-override-class-closure signal-id type-number callback-closure)
(setf
(gethash (cons type-number signal-id) *overridden-signals*)
(defbinding signal-add-emission-hook (type signal function &key (detail 0))
- unsigned-int
+ unsigned-long
((ensure-signal-id-from-type signal type) unsigned-int)
(detail quark)
- (signal-emission-hook callback)
+ (emission-hook-marshal callback)
((register-callback-function function) unsigned-int)
(user-data-destroy-callback callback))
(defbinding signal-remove-emission-hook (type signal hook-id) nil
((ensure-signal-id-from-type signal type) unsigned-int)
- (hook-id unsigned-int))
+ (hook-id unsigned-long))
(defbinding (signal-has-handler-pending-p "g_signal_has_handler_pending")
((or detail 0) quark)
(blocked boolean))
-(defbinding %signal-connect-closure-by-id () unsigned-int
+(defbinding %signal-connect-closure-by-id () unsigned-long
(instance ginstance)
(signal-id unsigned-int)
(detail quark)
(defbinding signal-handler-block () nil
(instance ginstance)
- (handler-id unsigned-int))
+ (handler-id unsigned-long))
(defbinding signal-handler-unblock () nil
(instance ginstance)
- (handler-id unsigned-int))
+ (handler-id unsigned-long))
+
+;; Internal
+(defbinding signal-handler-find () unsigned-long
+ (instance gobject)
+ (mask signal-match-type)
+ (signal-id unsigned-int)
+ (detail quark)
+ (closure (or null pointer))
+ (func (or null pointer))
+ (data unsigned-long))
(defbinding signal-handler-disconnect () nil
(instance ginstance)
- (handler-id unsigned-int))
+ (handler-id unsigned-long))
(defbinding signal-handler-is-connected-p () boolean
(instance ginstance)
- (handler-id unsigned-int))
+ (handler-id unsigned-long))
(defbinding (callback-closure-new "clg_callback_closure_new") () gclosure
(callback-id unsigned-int)
(callback callback)
(destroy-notify callback))
-(defun make-callback-closure (function)
+(defun make-callback-closure (function marshaller)
(let ((callback-id (register-callback-function function)))
(values
- (callback-closure-new callback-id closure-marshal user-data-destroy-callback)
+ (callback-closure-new callback-id marshaller user-data-destroy-callback)
callback-id)))
(defgeneric compute-signal-function (gobject signal function object))
(let ((*signal-stop-emission* signal-stop-emission))
(apply callback args)))))
(multiple-value-bind (closure-id callback-id)
- (make-callback-closure wrapper)
+ (make-callback-closure wrapper signal-handler-marshal)
(let ((handler-id (%signal-connect-closure-by-id
gobject signal-id detail-quark closure-id after)))
(when remove
(unwind-protect
(let ((*signal-stop-emission* signal-stop-emission))
(apply callback args))
- (signal-handler-disconnect gobject handler-id)))))
+ (when (signal-handler-is-connected-p gobject handler-id)
+ (signal-handler-disconnect gobject handler-id))))))
handler-id))))
~mdw / clg / blobdiff