diff options
| -rw-r--r-- | gobject/gbinding.c | 7 | ||||
| -rw-r--r-- | gobject/tests/binding.c | 77 |
2 files changed, 82 insertions, 2 deletions
diff --git a/gobject/gbinding.c b/gobject/gbinding.c index 6872b9662..42dcb366f 100644 --- a/gobject/gbinding.c +++ b/gobject/gbinding.c @@ -373,6 +373,7 @@ g_binding_unbind_internal (GBinding *binding, gboolean unref_binding) { gboolean source_is_target = binding->source == binding->target; + gboolean binding_was_removed = FALSE; /* dispose of the transformation data */ if (binding->notify != NULL) @@ -392,6 +393,7 @@ g_binding_unbind_internal (GBinding *binding, binding->source_notify = 0; binding->source = NULL; + binding_was_removed = TRUE; } if (binding->target != NULL) @@ -404,9 +406,10 @@ g_binding_unbind_internal (GBinding *binding, binding->target_notify = 0; binding->target = NULL; + binding_was_removed = TRUE; } - if (unref_binding) + if (binding_was_removed && unref_binding) g_object_unref (binding); } @@ -748,7 +751,7 @@ g_binding_get_target_property (GBinding *binding) /** * g_binding_unbind: - * @binding: (transfer full): a #GBinding + * @binding: a #GBinding * * Explicitly releases the binding between the source and the target * property expressed by @binding. diff --git a/gobject/tests/binding.c b/gobject/tests/binding.c index e088ca7a4..eeba37ed9 100644 --- a/gobject/tests/binding.c +++ b/gobject/tests/binding.c @@ -625,6 +625,81 @@ binding_unbind (void) g_object_unref (source); } +/* When source or target die, so does the binding if there is no other ref */ +static void +binding_unbind_weak (void) +{ + GBinding *binding; + BindingSource *source; + BindingTarget *target; + + /* first source, then target */ + source = g_object_new (binding_source_get_type (), NULL); + target = g_object_new (binding_target_get_type (), NULL); + binding = g_object_bind_property (source, "foo", + target, "bar", + G_BINDING_DEFAULT); + g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding); + g_assert (binding != NULL); + g_object_unref (source); + g_assert (binding == NULL); + g_object_unref (target); + g_assert (binding == NULL); + + /* first target, then source */ + source = g_object_new (binding_source_get_type (), NULL); + target = g_object_new (binding_target_get_type (), NULL); + binding = g_object_bind_property (source, "foo", + target, "bar", + G_BINDING_DEFAULT); + g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding); + g_assert (binding != NULL); + g_object_unref (target); + g_assert (binding == NULL); + g_object_unref (source); + g_assert (binding == NULL); + + /* target and source are the same */ + source = g_object_new (binding_source_get_type (), NULL); + binding = g_object_bind_property (source, "foo", + source, "bar", + G_BINDING_DEFAULT); + g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding); + g_assert (binding != NULL); + g_object_unref (source); + g_assert (binding == NULL); +} + +/* Test that every call to unbind() after the first is a noop */ +static void +binding_unbind_multiple (void) +{ + BindingSource *source = g_object_new (binding_source_get_type (), NULL); + BindingTarget *target = g_object_new (binding_target_get_type (), NULL); + GBinding *binding; + int i; + + binding = g_object_bind_property (source, "foo", + target, "bar", + G_BINDING_DEFAULT); + g_object_ref (binding); + g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding); + g_assert (binding != NULL); + + /* this shouldn't crash */ + for (i = 0; i < 50; i++) + { + g_binding_unbind (binding); + g_assert (binding != NULL); + } + + g_object_unref (binding); + g_assert (binding == NULL); + + g_object_unref (source); + g_object_unref (target); +} + static void binding_fail (void) { @@ -665,6 +740,8 @@ main (int argc, char *argv[]) g_test_add_func ("/binding/invert-boolean", binding_invert_boolean); g_test_add_func ("/binding/same-object", binding_same_object); g_test_add_func ("/binding/unbind", binding_unbind); + g_test_add_func ("/binding/unbind-weak", binding_unbind_weak); + g_test_add_func ("/binding/unbind-multiple", binding_unbind_multiple); g_test_add_func ("/binding/fail", binding_fail); return g_test_run (); |