Fix #154845, add tests and a private method.

    * gobject/pygtype.c (gclosure_from_pyfunc):

    * gobject/pygobject.c (pygobject_disconnect_by_func)
    (pygobject_handler_block_by_func)
    (pygobject_handler_unblock_by_func):

    * tests/test_signal.py (TestEmissionHook._callback):

    Fix #154845, add tests and a private method.

1 files changed, 15 insertions, 0 deletions

diff --git a/gobject/pygtype.c b/gobject/pygtype.c
index a1400a0..296f48f 100644
--- a/gobject/pygtype.c
+++ b/gobject/pygtype.c
@@ -1306,6 +1306,21 @@ pyg_signal_class_closure_get(void)
     return closure;
 }
 
+GClosure *
+gclosure_from_pyfunc(PyGObject *object, PyObject *func)
+{
+    GSList *l;
+
+    for (l = object->closures; l; l = l->next) {
+	PyGClosure *pyclosure = l->data;
+	if (PyFunction_GetClosure(pyclosure->callback) ==
+		PyFunction_GetClosure(func)) {
+	    return (GClosure*)pyclosure;
+	}
+    }
+    return NULL;
+}
+
 /* ----- __doc__ descriptor for GObject and GInterface ----- */
 
 static void