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e05623001b
In general, we must not call out to external, unknown code while holding a lock. That is prone to dead lock. g_object_ref() can emit a toggle notification. In g_weak_ref_set(), we must not do that while holding the lock.
1597 lines
43 KiB
C
1597 lines
43 KiB
C
#include <glib-object.h>
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static void
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test_fundamentals (void)
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{
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_NONE));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_INTERFACE));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_CHAR));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_UCHAR));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_BOOLEAN));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_INT));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_UINT));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_LONG));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_ULONG));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_INT64));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_UINT64));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_ENUM));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_FLAGS));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_FLOAT));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_DOUBLE));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_STRING));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_POINTER));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_BOXED));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_PARAM));
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_OBJECT));
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g_assert (G_TYPE_OBJECT == g_object_get_type ());
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g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_VARIANT));
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g_assert (G_TYPE_IS_DERIVED (G_TYPE_INITIALLY_UNOWNED));
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g_assert (g_type_fundamental_next () == G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_USER_FIRST));
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}
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static void
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test_type_qdata (void)
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{
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gchar *data;
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g_type_set_qdata (G_TYPE_ENUM, g_quark_from_string ("bla"), "bla");
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data = g_type_get_qdata (G_TYPE_ENUM, g_quark_from_string ("bla"));
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g_assert_cmpstr (data, ==, "bla");
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}
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static void
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test_type_query (void)
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{
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GTypeQuery query;
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g_type_query (G_TYPE_ENUM, &query);
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g_assert_cmpint (query.type, ==, G_TYPE_ENUM);
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g_assert_cmpstr (query.type_name, ==, "GEnum");
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g_assert_cmpint (query.class_size, ==, sizeof (GEnumClass));
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g_assert_cmpint (query.instance_size, ==, 0);
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}
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typedef struct _MyObject MyObject;
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typedef struct _MyObjectClass MyObjectClass;
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typedef struct _MyObjectClassPrivate MyObjectClassPrivate;
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struct _MyObject
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{
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GObject parent_instance;
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gint count;
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};
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struct _MyObjectClass
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{
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GObjectClass parent_class;
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};
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struct _MyObjectClassPrivate
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{
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gint secret_class_count;
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};
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static GType my_object_get_type (void);
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G_DEFINE_TYPE_WITH_CODE (MyObject, my_object, G_TYPE_OBJECT,
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g_type_add_class_private (g_define_type_id, sizeof (MyObjectClassPrivate)) );
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static void
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my_object_init (MyObject *obj)
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{
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obj->count = 42;
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}
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static void
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my_object_class_init (MyObjectClass *klass)
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{
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}
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static void
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test_class_private (void)
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{
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GObject *obj;
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MyObjectClass *class;
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MyObjectClassPrivate *priv;
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obj = g_object_new (my_object_get_type (), NULL);
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class = g_type_class_ref (my_object_get_type ());
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priv = G_TYPE_CLASS_GET_PRIVATE (class, my_object_get_type (), MyObjectClassPrivate);
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priv->secret_class_count = 13;
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g_type_class_unref (class);
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g_object_unref (obj);
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g_assert_cmpint (g_type_qname (my_object_get_type ()), ==, g_quark_from_string ("MyObject"));
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}
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static void
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test_clear (void)
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{
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GObject *o = NULL;
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GObject *tmp;
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g_clear_object (&o);
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g_assert (o == NULL);
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tmp = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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o = g_object_ref (tmp);
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g_assert (o != NULL);
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g_assert_cmpint (tmp->ref_count, ==, 2);
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g_clear_object (&o);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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g_assert (o == NULL);
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g_object_unref (tmp);
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}
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static void
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test_clear_function (void)
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{
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GObject *o = NULL;
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GObject *tmp;
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(g_clear_object) (&o);
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g_assert (o == NULL);
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tmp = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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o = g_object_ref (tmp);
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g_assert (o != NULL);
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g_assert_cmpint (tmp->ref_count, ==, 2);
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(g_clear_object) (&o);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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g_assert (o == NULL);
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g_object_unref (tmp);
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}
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static void
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test_set (void)
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{
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GObject *o = NULL;
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GObject *tmp;
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gpointer tmp_weak = NULL;
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g_assert (!g_set_object (&o, NULL));
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g_assert (o == NULL);
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tmp = g_object_new (G_TYPE_OBJECT, NULL);
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tmp_weak = tmp;
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g_object_add_weak_pointer (tmp, &tmp_weak);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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g_assert (g_set_object (&o, tmp));
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g_assert (o == tmp);
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g_assert_cmpint (tmp->ref_count, ==, 2);
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g_object_unref (tmp);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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/* Setting it again shouldn’t cause finalisation. */
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g_assert (!g_set_object (&o, tmp));
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g_assert (o == tmp);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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g_assert_nonnull (tmp_weak);
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g_assert (g_set_object (&o, NULL));
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g_assert (o == NULL);
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g_assert_null (tmp_weak);
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}
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static void
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test_set_function (void)
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{
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GObject *o = NULL;
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GObject *tmp;
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gpointer tmp_weak = NULL;
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g_assert (!(g_set_object) (&o, NULL));
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g_assert (o == NULL);
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tmp = g_object_new (G_TYPE_OBJECT, NULL);
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tmp_weak = tmp;
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g_object_add_weak_pointer (tmp, &tmp_weak);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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g_assert ((g_set_object) (&o, tmp));
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g_assert (o == tmp);
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g_assert_cmpint (tmp->ref_count, ==, 2);
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g_object_unref (tmp);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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/* Setting it again shouldn’t cause finalisation. */
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g_assert (!(g_set_object) (&o, tmp));
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g_assert (o == tmp);
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g_assert_cmpint (tmp->ref_count, ==, 1);
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g_assert_nonnull (tmp_weak);
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g_assert ((g_set_object) (&o, NULL));
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g_assert (o == NULL);
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g_assert_null (tmp_weak);
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}
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static void
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test_set_derived_type (void)
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{
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GBinding *obj = NULL;
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GObject *o = NULL;
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GBinding *b = NULL;
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g_test_summary ("Check that g_set_object() doesn’t give strict aliasing "
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"warnings when used on types derived from GObject");
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g_assert_false (g_set_object (&o, NULL));
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g_assert_null (o);
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g_assert_false (g_set_object (&b, NULL));
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g_assert_null (b);
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obj = g_object_new (my_object_get_type (), NULL);
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g_assert_true (g_set_object (&o, G_OBJECT (obj)));
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g_assert_true (o == G_OBJECT (obj));
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g_assert_true (g_set_object (&b, obj));
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g_assert_true (b == obj);
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g_object_unref (obj);
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g_clear_object (&b);
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g_clear_object (&o);
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}
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static void
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toggle_cb (gpointer data, GObject *obj, gboolean is_last)
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{
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gboolean *b = data;
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*b = TRUE;
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}
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static void
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test_object_value (void)
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{
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GObject *v;
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GObject *v2;
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GValue value = G_VALUE_INIT;
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gboolean toggled = FALSE;
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g_value_init (&value, G_TYPE_OBJECT);
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v = g_object_new (G_TYPE_OBJECT, NULL);
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g_object_add_toggle_ref (v, toggle_cb, &toggled);
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g_value_take_object (&value, v);
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v2 = g_value_get_object (&value);
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g_assert (v2 == v);
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v2 = g_value_dup_object (&value);
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g_assert (v2 == v); /* objects use ref/unref for copy/free */
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g_object_unref (v2);
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g_assert (!toggled);
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g_value_unset (&value);
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g_assert (toggled);
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/* test the deprecated variant too */
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g_value_init (&value, G_TYPE_OBJECT);
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/* get a new reference */
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g_object_ref (v);
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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g_value_set_object_take_ownership (&value, v);
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G_GNUC_END_IGNORE_DEPRECATIONS
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toggled = FALSE;
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g_value_unset (&value);
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g_assert (toggled);
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g_object_remove_toggle_ref (v, toggle_cb, &toggled);
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}
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static void
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test_initially_unowned (void)
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{
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GObject *obj;
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obj = g_object_new (G_TYPE_INITIALLY_UNOWNED, NULL);
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g_assert (g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_ref_sink (obj);
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g_assert (!g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_ref_sink (obj);
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g_assert (!g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 2);
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g_object_unref (obj);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_force_floating (obj);
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g_assert (g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_ref_sink (obj);
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g_object_unref (obj);
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obj = g_object_new (G_TYPE_INITIALLY_UNOWNED, NULL);
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g_assert_true (g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_take_ref (obj);
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g_assert_false (g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_take_ref (obj);
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g_assert_false (g_object_is_floating (obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_unref (obj);
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if (g_test_undefined ())
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{
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obj = g_object_new (G_TYPE_INITIALLY_UNOWNED, NULL);
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#ifdef G_ENABLE_DEBUG
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g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
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"A floating object GInitiallyUnowned * was finalized*");
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#endif
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g_object_unref (obj);
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#ifdef G_ENABLE_DEBUG
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g_test_assert_expected_messages ();
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#endif
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}
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}
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static void
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test_weak_pointer (void)
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{
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GObject *obj;
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gpointer weak;
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gpointer weak2;
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weak = weak2 = obj = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_add_weak_pointer (obj, &weak);
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g_object_add_weak_pointer (obj, &weak2);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert (weak == obj);
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g_assert (weak2 == obj);
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g_object_remove_weak_pointer (obj, &weak2);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert (weak == obj);
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g_assert (weak2 == obj);
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g_object_unref (obj);
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g_assert (weak == NULL);
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g_assert (weak2 == obj);
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}
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static void
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test_weak_pointer_clear (void)
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{
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GObject *obj;
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gpointer weak = NULL;
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g_clear_weak_pointer (&weak);
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g_assert_null (weak);
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weak = obj = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_add_weak_pointer (obj, &weak);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (weak == obj);
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g_clear_weak_pointer (&weak);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_null (weak);
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g_object_unref (obj);
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}
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static void
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test_weak_pointer_clear_function (void)
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{
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GObject *obj;
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gpointer weak = NULL;
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(g_clear_weak_pointer) (&weak);
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g_assert_null (weak);
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weak = obj = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_object_add_weak_pointer (obj, &weak);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (weak == obj);
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(g_clear_weak_pointer) (&weak);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_null (weak);
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g_object_unref (obj);
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}
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|
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static void
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test_weak_pointer_set (void)
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{
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GObject *obj;
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gpointer weak = NULL;
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g_assert_false (g_set_weak_pointer (&weak, NULL));
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g_assert_null (weak);
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obj = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (g_set_weak_pointer (&weak, obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (weak == obj);
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g_assert_true (g_set_weak_pointer (&weak, NULL));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_null (weak);
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|
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g_assert_true (g_set_weak_pointer (&weak, obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (weak == obj);
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|
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g_object_unref (obj);
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g_assert_null (weak);
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}
|
||
|
||
static void
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test_weak_pointer_set_function (void)
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{
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GObject *obj;
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gpointer weak = NULL;
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g_assert_false ((g_set_weak_pointer) (&weak, NULL));
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g_assert_null (weak);
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|
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obj = g_object_new (G_TYPE_OBJECT, NULL);
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true ((g_set_weak_pointer) (&weak, obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (weak == obj);
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g_assert_true ((g_set_weak_pointer) (&weak, NULL));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_null (weak);
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g_assert_true ((g_set_weak_pointer) (&weak, obj));
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g_assert_cmpint (obj->ref_count, ==, 1);
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g_assert_true (weak == obj);
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|
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g_object_unref (obj);
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g_assert_null (weak);
|
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}
|
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|
||
/* See gobject/tests/threadtests.c for the threaded version */
|
||
static void
|
||
test_weak_ref (void)
|
||
{
|
||
GObject *obj;
|
||
GObject *obj2;
|
||
GObject *tmp;
|
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GWeakRef weak = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
GWeakRef weak2 = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
GWeakRef weak3 = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
GWeakRef *dynamic_weak = g_new (GWeakRef, 1);
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|
||
/* you can initialize to empty like this... */
|
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g_weak_ref_init (&weak2, NULL);
|
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g_assert (g_weak_ref_get (&weak2) == NULL);
|
||
|
||
/* ... or via an initializer */
|
||
g_weak_ref_init (&weak3, NULL);
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||
g_assert (g_weak_ref_get (&weak3) == NULL);
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
obj2 = g_object_new (G_TYPE_OBJECT, NULL);
|
||
g_assert_cmpint (obj2->ref_count, ==, 1);
|
||
|
||
/* you can init with an object (even if uninitialized) */
|
||
g_weak_ref_init (&weak, obj);
|
||
g_weak_ref_init (dynamic_weak, obj);
|
||
/* or set to point at an object, if initialized (maybe to 0) */
|
||
g_weak_ref_set (&weak2, obj);
|
||
g_weak_ref_set (&weak3, obj);
|
||
/* none of this affects its refcount */
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
/* getting the value takes a ref */
|
||
tmp = g_weak_ref_get (&weak);
|
||
g_assert (tmp == obj);
|
||
g_assert_cmpint (obj->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
tmp = g_weak_ref_get (&weak2);
|
||
g_assert (tmp == obj);
|
||
g_assert_cmpint (obj->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
tmp = g_weak_ref_get (&weak3);
|
||
g_assert (tmp == obj);
|
||
g_assert_cmpint (obj->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
tmp = g_weak_ref_get (dynamic_weak);
|
||
g_assert (tmp == obj);
|
||
g_assert_cmpint (obj->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
/* clearing a weak ref stops tracking */
|
||
g_weak_ref_clear (&weak);
|
||
|
||
/* setting a weak ref to NULL stops tracking too */
|
||
g_weak_ref_set (&weak2, NULL);
|
||
g_assert (g_weak_ref_get (&weak2) == NULL);
|
||
g_weak_ref_clear (&weak2);
|
||
|
||
/* setting a weak ref to a new object stops tracking the old one */
|
||
g_weak_ref_set (dynamic_weak, obj2);
|
||
tmp = g_weak_ref_get (dynamic_weak);
|
||
g_assert (tmp == obj2);
|
||
g_assert_cmpint (obj2->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj2->ref_count, ==, 1);
|
||
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
|
||
/* free the object: weak3 is the only one left pointing there */
|
||
g_object_unref (obj);
|
||
g_assert (g_weak_ref_get (&weak3) == NULL);
|
||
|
||
/* setting a weak ref to a new object stops tracking the old one */
|
||
g_weak_ref_set (dynamic_weak, obj2);
|
||
tmp = g_weak_ref_get (dynamic_weak);
|
||
g_assert (tmp == obj2);
|
||
g_assert_cmpint (obj2->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj2->ref_count, ==, 1);
|
||
|
||
g_weak_ref_clear (&weak3);
|
||
|
||
/* unset dynamic_weak... */
|
||
g_weak_ref_set (dynamic_weak, NULL);
|
||
g_assert_null (g_weak_ref_get (dynamic_weak));
|
||
|
||
/* initializing a weak reference to an object that had before works */
|
||
g_weak_ref_set (dynamic_weak, obj2);
|
||
tmp = g_weak_ref_get (dynamic_weak);
|
||
g_assert_true (tmp == obj2);
|
||
g_assert_cmpint (obj2->ref_count, ==, 2);
|
||
g_object_unref (tmp);
|
||
g_assert_cmpint (obj2->ref_count, ==, 1);
|
||
|
||
/* clear and free dynamic_weak... */
|
||
g_weak_ref_clear (dynamic_weak);
|
||
|
||
/* ... to prove that doing so stops this from being a use-after-free */
|
||
g_object_unref (obj2);
|
||
g_free (dynamic_weak);
|
||
}
|
||
|
||
G_DECLARE_FINAL_TYPE (WeakReffedObject, weak_reffed_object,
|
||
WEAK, REFFED_OBJECT, GObject)
|
||
|
||
struct _WeakReffedObject
|
||
{
|
||
GObject parent;
|
||
|
||
GWeakRef *weak_ref;
|
||
};
|
||
|
||
G_DEFINE_TYPE (WeakReffedObject, weak_reffed_object, G_TYPE_OBJECT)
|
||
|
||
static void
|
||
weak_reffed_object_dispose (GObject *object)
|
||
{
|
||
WeakReffedObject *weak_reffed = WEAK_REFFED_OBJECT (object);
|
||
|
||
g_assert_cmpint (object->ref_count, ==, 1);
|
||
|
||
g_weak_ref_set (weak_reffed->weak_ref, object);
|
||
|
||
G_OBJECT_CLASS (weak_reffed_object_parent_class)->dispose (object);
|
||
|
||
g_assert_true (object == g_weak_ref_get (weak_reffed->weak_ref));
|
||
g_object_unref (object);
|
||
}
|
||
|
||
static void
|
||
weak_reffed_object_init (WeakReffedObject *connector)
|
||
{
|
||
}
|
||
|
||
static void
|
||
weak_reffed_object_class_init (WeakReffedObjectClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
|
||
object_class->dispose = weak_reffed_object_dispose;
|
||
}
|
||
|
||
static void
|
||
test_weak_ref_on_dispose (void)
|
||
{
|
||
WeakReffedObject *obj;
|
||
GWeakRef weak = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
|
||
g_test_bug ("https://gitlab.gnome.org/GNOME/glib/-/issues/2390");
|
||
g_test_summary ("Test that a weak ref set during dispose vfunc is cleared");
|
||
|
||
g_weak_ref_init (&weak, NULL);
|
||
|
||
obj = g_object_new (weak_reffed_object_get_type (), NULL);
|
||
obj->weak_ref = &weak;
|
||
|
||
g_assert_cmpint (G_OBJECT (obj)->ref_count, ==, 1);
|
||
g_clear_object (&obj);
|
||
|
||
g_assert_null (g_weak_ref_get (&weak));
|
||
}
|
||
|
||
static void
|
||
test_weak_ref_on_run_dispose (void)
|
||
{
|
||
GObject *obj;
|
||
GWeakRef weak = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
|
||
g_test_bug ("https://gitlab.gnome.org/GNOME/glib/-/issues/865");
|
||
g_test_summary ("Test that a weak ref is cleared on g_object_run_dispose()");
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
g_weak_ref_init (&weak, obj);
|
||
|
||
g_assert_true (obj == g_weak_ref_get (&weak));
|
||
g_object_unref (obj);
|
||
|
||
g_object_run_dispose (obj);
|
||
g_assert_null (g_weak_ref_get (&weak));
|
||
|
||
g_weak_ref_set (&weak, obj);
|
||
|
||
g_clear_object (&obj);
|
||
g_assert_null (g_weak_ref_get (&weak));
|
||
}
|
||
|
||
static void
|
||
on_weak_ref_toggle_notify (gpointer data,
|
||
GObject *object,
|
||
gboolean is_last_ref)
|
||
{
|
||
GWeakRef *weak = data;
|
||
|
||
if (is_last_ref)
|
||
g_weak_ref_set (weak, object);
|
||
}
|
||
|
||
static void
|
||
on_weak_ref_toggle_notify_disposed (gpointer data,
|
||
GObject *object)
|
||
{
|
||
g_assert_cmpint (object->ref_count, ==, 1);
|
||
|
||
g_object_ref (object);
|
||
g_object_unref (object);
|
||
}
|
||
|
||
static void
|
||
test_weak_ref_on_toggle_notify (void)
|
||
{
|
||
GObject *obj;
|
||
GWeakRef weak = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
|
||
g_test_bug ("https://gitlab.gnome.org/GNOME/glib/-/issues/2390");
|
||
g_test_summary ("Test that a weak ref set on toggle notify is cleared");
|
||
|
||
g_weak_ref_init (&weak, NULL);
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
g_object_add_toggle_ref (obj, on_weak_ref_toggle_notify, &weak);
|
||
g_object_weak_ref (obj, on_weak_ref_toggle_notify_disposed, NULL);
|
||
g_object_unref (obj);
|
||
|
||
g_assert_cmpint (obj->ref_count, ==, 1);
|
||
g_clear_object (&obj);
|
||
|
||
g_assert_null (g_weak_ref_get (&weak));
|
||
}
|
||
|
||
static void
|
||
weak_ref_in_toggle_notify_toggle_cb (gpointer data,
|
||
GObject *object,
|
||
gboolean is_last_ref)
|
||
{
|
||
GWeakRef weak2;
|
||
GObject *obj2;
|
||
|
||
if (is_last_ref)
|
||
return;
|
||
|
||
/* We just got a second ref, while calling g_weak_ref_get().
|
||
*
|
||
* Test that taking another weak ref in this situation works.
|
||
*/
|
||
|
||
g_weak_ref_init (&weak2, object);
|
||
g_assert_true (object == g_weak_ref_get (&weak2));
|
||
g_object_unref (object);
|
||
|
||
obj2 = g_object_new (G_TYPE_OBJECT, NULL);
|
||
g_weak_ref_set (&weak2, obj2);
|
||
g_object_unref (obj2);
|
||
|
||
g_assert_null (g_weak_ref_get (&weak2));
|
||
}
|
||
|
||
static void
|
||
test_weak_ref_in_toggle_notify (void)
|
||
{
|
||
GObject *obj;
|
||
GWeakRef weak = { { GUINT_TO_POINTER (0xDEADBEEFU) } };
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
g_object_add_toggle_ref (obj, weak_ref_in_toggle_notify_toggle_cb, NULL);
|
||
g_object_unref (obj);
|
||
|
||
g_weak_ref_init (&weak, obj);
|
||
|
||
/* We trigger a toggle notify via g_weak_ref_get(). */
|
||
g_assert_true (g_weak_ref_get (&weak) == obj);
|
||
|
||
g_object_remove_toggle_ref (obj, weak_ref_in_toggle_notify_toggle_cb, NULL);
|
||
g_object_unref (obj);
|
||
|
||
g_assert_null (g_weak_ref_get (&weak));
|
||
}
|
||
|
||
/*****************************************************************************/
|
||
|
||
#define CONCURRENT_N_OBJS 5
|
||
#define CONCURRENT_N_THREADS 5
|
||
#define CONCURRENT_N_RACES 100
|
||
|
||
typedef struct
|
||
{
|
||
int TEST_IDX;
|
||
GObject *objs[CONCURRENT_N_OBJS];
|
||
int thread_done[CONCURRENT_N_THREADS];
|
||
} ConcurrentData;
|
||
|
||
typedef struct
|
||
{
|
||
const ConcurrentData *data;
|
||
int idx;
|
||
int race_count;
|
||
GWeakRef *weak_ref;
|
||
GRand *rnd;
|
||
} ConcurrentThreadData;
|
||
|
||
static gpointer
|
||
_test_weak_ref_concurrent_thread_cb (gpointer data)
|
||
{
|
||
ConcurrentThreadData *thread_data = data;
|
||
|
||
while (TRUE)
|
||
{
|
||
gboolean all_done;
|
||
int i;
|
||
int r;
|
||
|
||
for (r = 0; r < 15; r++)
|
||
{
|
||
GObject *obj_allocated = NULL;
|
||
GObject *obj;
|
||
GObject *obj2;
|
||
gboolean got_race;
|
||
|
||
/* Choose a random object */
|
||
obj = thread_data->data->objs[g_rand_int (thread_data->rnd) % CONCURRENT_N_OBJS];
|
||
if (thread_data->data->TEST_IDX > 0 && (g_rand_int (thread_data->rnd) % 4 == 0))
|
||
{
|
||
/* With TEST_IDX>0 also randomly choose NULL or a newly created
|
||
* object. */
|
||
if (g_rand_boolean (thread_data->rnd))
|
||
obj = NULL;
|
||
else
|
||
{
|
||
obj_allocated = g_object_new (G_TYPE_OBJECT, NULL);
|
||
obj = obj_allocated;
|
||
}
|
||
}
|
||
|
||
g_assert (!obj || G_IS_OBJECT (obj));
|
||
|
||
g_weak_ref_set (thread_data->weak_ref, obj);
|
||
|
||
/* get the weak-ref. If there is no race, we expect to get the same
|
||
* object back. */
|
||
obj2 = g_weak_ref_get (thread_data->weak_ref);
|
||
|
||
g_assert (!obj2 || G_IS_OBJECT (obj2));
|
||
if (!obj2)
|
||
{
|
||
g_assert (thread_data->data->TEST_IDX > 0);
|
||
}
|
||
if (obj != obj2)
|
||
{
|
||
int cnt;
|
||
|
||
cnt = 0;
|
||
for (i = 0; i < CONCURRENT_N_OBJS; i++)
|
||
{
|
||
if (obj2 == thread_data->data->objs[i])
|
||
cnt++;
|
||
}
|
||
if (!obj2)
|
||
g_assert_cmpint (cnt, ==, 0);
|
||
else if (obj2 && obj2 == obj_allocated)
|
||
g_assert_cmpint (cnt, ==, 0);
|
||
else if (thread_data->data->TEST_IDX > 0)
|
||
g_assert_cmpint (cnt, <=, 1);
|
||
else
|
||
g_assert_cmpint (cnt, ==, 1);
|
||
got_race = TRUE;
|
||
}
|
||
else
|
||
got_race = FALSE;
|
||
|
||
g_clear_object (&obj2);
|
||
g_clear_object (&obj_allocated);
|
||
|
||
if (got_race)
|
||
{
|
||
/* Each thread should see CONCURRENT_N_RACES before being done.
|
||
* Count them. */
|
||
if (g_atomic_int_get (&thread_data->race_count) > CONCURRENT_N_RACES)
|
||
g_atomic_int_set (&thread_data->data->thread_done[thread_data->idx], 1);
|
||
else
|
||
g_atomic_int_add (&thread_data->race_count, 1);
|
||
}
|
||
}
|
||
|
||
/* Each thread runs, until all threads saw the expected number of races. */
|
||
all_done = TRUE;
|
||
for (i = 0; i < CONCURRENT_N_THREADS; i++)
|
||
{
|
||
if (!g_atomic_int_get (&thread_data->data->thread_done[i]))
|
||
{
|
||
all_done = FALSE;
|
||
break;
|
||
}
|
||
}
|
||
if (all_done)
|
||
return GINT_TO_POINTER (1);
|
||
}
|
||
}
|
||
|
||
static void
|
||
test_weak_ref_concurrent (gconstpointer testdata)
|
||
{
|
||
const int TEST_IDX = GPOINTER_TO_INT (testdata);
|
||
GThread *threads[CONCURRENT_N_THREADS];
|
||
int i;
|
||
ConcurrentData data = {
|
||
.TEST_IDX = TEST_IDX,
|
||
};
|
||
ConcurrentThreadData thread_data[CONCURRENT_N_THREADS];
|
||
GWeakRef weak_ref = { 0 };
|
||
|
||
/* Let several threads call g_weak_ref_set() & g_weak_ref_get() in a loop. */
|
||
|
||
for (i = 0; i < CONCURRENT_N_OBJS; i++)
|
||
data.objs[i] = g_object_new (G_TYPE_OBJECT, NULL);
|
||
|
||
for (i = 0; i < CONCURRENT_N_THREADS; i++)
|
||
{
|
||
const guint32 rnd_seed[] = {
|
||
g_test_rand_int (),
|
||
g_test_rand_int (),
|
||
g_test_rand_int (),
|
||
};
|
||
|
||
thread_data[i] = (ConcurrentThreadData){
|
||
.idx = i,
|
||
.data = &data,
|
||
.weak_ref = &weak_ref,
|
||
.rnd = g_rand_new_with_seed_array (rnd_seed, G_N_ELEMENTS (rnd_seed)),
|
||
};
|
||
threads[i] = g_thread_new ("test-weak-ref-concurrent", _test_weak_ref_concurrent_thread_cb, &thread_data[i]);
|
||
}
|
||
|
||
for (i = 0; i < CONCURRENT_N_THREADS; i++)
|
||
{
|
||
gpointer r;
|
||
|
||
r = g_thread_join (g_steal_pointer (&threads[i]));
|
||
g_assert_cmpint (GPOINTER_TO_INT (r), ==, 1);
|
||
}
|
||
|
||
for (i = 0; i < CONCURRENT_N_OBJS; i++)
|
||
g_object_unref (g_steal_pointer (&data.objs[i]));
|
||
for (i = 0; i < CONCURRENT_N_THREADS; i++)
|
||
g_rand_free (g_steal_pointer (&thread_data[i].rnd));
|
||
}
|
||
|
||
/*****************************************************************************/
|
||
|
||
typedef struct
|
||
{
|
||
gboolean should_be_last;
|
||
gint count;
|
||
} Count;
|
||
|
||
static void
|
||
toggle_notify (gpointer data,
|
||
GObject *obj,
|
||
gboolean is_last)
|
||
{
|
||
Count *c = data;
|
||
|
||
g_assert (is_last == c->should_be_last);
|
||
|
||
if (is_last)
|
||
g_assert_cmpint (g_atomic_int_get (&obj->ref_count), ==, 1);
|
||
else
|
||
g_assert_cmpint (g_atomic_int_get (&obj->ref_count), ==, 2);
|
||
|
||
c->count++;
|
||
}
|
||
|
||
static void
|
||
test_toggle_ref (void)
|
||
{
|
||
GObject *obj;
|
||
Count c, c2;
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
|
||
g_object_add_toggle_ref (obj, toggle_notify, &c);
|
||
g_object_add_toggle_ref (obj, toggle_notify, &c2);
|
||
|
||
c.should_be_last = c2.should_be_last = TRUE;
|
||
c.count = c2.count = 0;
|
||
|
||
g_object_unref (obj);
|
||
|
||
g_assert_cmpint (c.count, ==, 0);
|
||
g_assert_cmpint (c2.count, ==, 0);
|
||
|
||
g_object_ref (obj);
|
||
|
||
g_assert_cmpint (c.count, ==, 0);
|
||
g_assert_cmpint (c2.count, ==, 0);
|
||
|
||
g_object_remove_toggle_ref (obj, toggle_notify, &c2);
|
||
|
||
g_object_unref (obj);
|
||
|
||
g_assert_cmpint (c.count, ==, 1);
|
||
|
||
c.should_be_last = FALSE;
|
||
|
||
g_object_ref (obj);
|
||
|
||
g_assert_cmpint (c.count, ==, 2);
|
||
|
||
c.should_be_last = TRUE;
|
||
|
||
g_object_unref (obj);
|
||
|
||
g_assert_cmpint (c.count, ==, 3);
|
||
|
||
g_object_remove_toggle_ref (obj, toggle_notify, &c);
|
||
}
|
||
|
||
G_DECLARE_FINAL_TYPE (DisposeReffingObject, dispose_reffing_object,
|
||
DISPOSE, REFFING_OBJECT, GObject)
|
||
|
||
typedef enum
|
||
{
|
||
PROP_INT_PROP = 1,
|
||
N_PROPS,
|
||
} DisposeReffingObjectProperty;
|
||
|
||
static GParamSpec *dispose_reffing_object_properties[N_PROPS] = {0};
|
||
|
||
struct _DisposeReffingObject
|
||
{
|
||
GObject parent;
|
||
|
||
GToggleNotify toggle_notify;
|
||
Count actual;
|
||
Count expected;
|
||
unsigned disposing_refs;
|
||
gboolean disposing_refs_all_normal;
|
||
|
||
GCallback notify_handler;
|
||
unsigned notify_called;
|
||
|
||
int int_prop;
|
||
|
||
GWeakRef *weak_ref;
|
||
};
|
||
|
||
G_DEFINE_TYPE (DisposeReffingObject, dispose_reffing_object, G_TYPE_OBJECT)
|
||
|
||
static void
|
||
on_object_notify (GObject *object,
|
||
GParamSpec *pspec,
|
||
void *data)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
|
||
obj->notify_called++;
|
||
}
|
||
|
||
static void
|
||
dispose_reffing_object_dispose (GObject *object)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
|
||
g_assert_cmpint (object->ref_count, ==, 1);
|
||
g_assert_cmpint (obj->actual.count, ==, obj->expected.count);
|
||
|
||
for (unsigned i = 0; i < obj->disposing_refs; ++i)
|
||
{
|
||
if (i == 0 && !obj->disposing_refs_all_normal)
|
||
{
|
||
g_object_add_toggle_ref (object, obj->toggle_notify, &obj->actual);
|
||
}
|
||
else
|
||
{
|
||
obj->actual.should_be_last = FALSE;
|
||
g_object_ref (obj);
|
||
g_assert_cmpint (obj->actual.count, ==, obj->expected.count);
|
||
}
|
||
|
||
obj->actual.should_be_last = TRUE;
|
||
}
|
||
|
||
G_OBJECT_CLASS (dispose_reffing_object_parent_class)->dispose (object);
|
||
|
||
if (obj->notify_handler)
|
||
{
|
||
unsigned old_notify_called = obj->notify_called;
|
||
|
||
g_assert_cmpuint (g_signal_handler_find (object, G_SIGNAL_MATCH_FUNC,
|
||
0, 0, NULL, obj->notify_handler, NULL), ==, 0);
|
||
|
||
g_signal_connect (object, "notify", G_CALLBACK (obj->notify_handler), NULL);
|
||
|
||
/* This would trigger a toggle notification, but is not something we may
|
||
* want with https://gitlab.gnome.org/GNOME/glib/-/merge_requests/2377
|
||
* so, we only test this in case we have more than one ref
|
||
*/
|
||
if (obj->toggle_notify == toggle_notify)
|
||
g_assert_cmpint (obj->disposing_refs, >, 1);
|
||
|
||
g_object_notify (object, "int-prop");
|
||
g_assert_cmpuint (obj->notify_called, ==, old_notify_called);
|
||
}
|
||
|
||
g_assert_cmpint (obj->actual.count, ==, obj->expected.count);
|
||
}
|
||
|
||
static void
|
||
dispose_reffing_object_init (DisposeReffingObject *connector)
|
||
{
|
||
}
|
||
|
||
static void
|
||
dispose_reffing_object_set_property (GObject *object,
|
||
guint property_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
|
||
switch ((DisposeReffingObjectProperty) property_id)
|
||
{
|
||
case PROP_INT_PROP:
|
||
obj->int_prop = g_value_get_int (value);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
dispose_reffing_object_get_property (GObject *object,
|
||
guint property_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
|
||
switch ((DisposeReffingObjectProperty) property_id)
|
||
{
|
||
case PROP_INT_PROP:
|
||
g_value_set_int (value, obj->int_prop);
|
||
break;
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
dispose_reffing_object_class_init (DisposeReffingObjectClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
|
||
dispose_reffing_object_properties[PROP_INT_PROP] =
|
||
g_param_spec_int ("int-prop", "int-prop", "int-prop",
|
||
G_MININT, G_MAXINT,
|
||
0,
|
||
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
|
||
|
||
object_class->dispose = dispose_reffing_object_dispose;
|
||
object_class->set_property = dispose_reffing_object_set_property;
|
||
object_class->get_property = dispose_reffing_object_get_property;
|
||
|
||
g_object_class_install_properties (object_class, N_PROPS,
|
||
dispose_reffing_object_properties);
|
||
}
|
||
|
||
static void
|
||
test_toggle_ref_on_dispose (void)
|
||
{
|
||
DisposeReffingObject *obj;
|
||
gpointer disposed_checker = &obj;
|
||
|
||
/* This tests wants to ensure that an object that gets re-referenced
|
||
* (one or multiple times) during its dispose virtual function:
|
||
* - Notifies all the queued "notify" signal handlers
|
||
* - Notifies toggle notifications if any
|
||
* - It does not get finalized
|
||
*/
|
||
|
||
obj = g_object_new (dispose_reffing_object_get_type (), NULL);
|
||
obj->toggle_notify = toggle_notify;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify);
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Convert to toggle notification */
|
||
g_object_add_toggle_ref (G_OBJECT (obj), obj->toggle_notify, &obj->actual);
|
||
g_assert_cmpint (obj->actual.count, ==, 0);
|
||
|
||
obj->actual.should_be_last = TRUE;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify);
|
||
g_object_unref (obj);
|
||
g_assert_cmpint (obj->actual.count, ==, 1);
|
||
g_assert_cmpuint (obj->notify_called, ==, 0);
|
||
|
||
/* Remove the toggle reference, making it to dispose and resurrect again */
|
||
obj->disposing_refs = 1;
|
||
obj->expected.count = 1;
|
||
obj->notify_handler = NULL; /* FIXME: enable it when !2377 is in */
|
||
g_object_remove_toggle_ref (G_OBJECT (obj), obj->toggle_notify, NULL);
|
||
g_assert_cmpint (obj->actual.count, ==, 2);
|
||
g_assert_cmpuint (obj->notify_called, ==, 0);
|
||
|
||
g_assert_null (disposed_checker);
|
||
g_assert_cmpint (g_atomic_int_get (&G_OBJECT (obj)->ref_count), ==,
|
||
obj->disposing_refs);
|
||
|
||
/* Object has been disposed, but is still alive, so add another weak pointer */
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Remove the toggle reference, making it to dispose and resurrect with
|
||
* more references than before, so that no toggle notify is called
|
||
*/
|
||
obj->disposing_refs = 3;
|
||
obj->expected.count = 2;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify);
|
||
g_object_remove_toggle_ref (G_OBJECT (obj), obj->toggle_notify, NULL);
|
||
g_assert_cmpint (obj->actual.count, ==, 2);
|
||
g_assert_cmpint (obj->notify_called, ==, 1);
|
||
obj->expected.count = obj->actual.count;
|
||
|
||
g_assert_null (disposed_checker);
|
||
g_assert_cmpint (g_atomic_int_get (&G_OBJECT (obj)->ref_count), ==,
|
||
obj->disposing_refs);
|
||
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Now remove the first added reference */
|
||
obj->disposing_refs = 0;
|
||
g_object_unref (obj);
|
||
g_assert_nonnull (disposed_checker);
|
||
g_assert_cmpint (g_atomic_int_get (&G_OBJECT (obj)->ref_count), ==, 2);
|
||
g_assert_cmpint (obj->actual.count, ==, 2);
|
||
g_assert_cmpint (obj->notify_called, ==, 1);
|
||
|
||
/* And the toggle one */
|
||
obj->actual.should_be_last = TRUE;
|
||
obj->notify_handler = NULL;
|
||
g_object_remove_toggle_ref (G_OBJECT (obj), obj->toggle_notify, NULL);
|
||
g_assert_nonnull (disposed_checker);
|
||
g_assert_cmpint (g_atomic_int_get (&G_OBJECT (obj)->ref_count), ==, 1);
|
||
g_assert_cmpint (obj->actual.count, ==, 2);
|
||
obj->expected.count = obj->actual.count;
|
||
|
||
g_clear_object (&obj);
|
||
g_assert_null (disposed_checker);
|
||
}
|
||
|
||
static void
|
||
toggle_notify_counter (gpointer data,
|
||
GObject *obj,
|
||
gboolean is_last)
|
||
{
|
||
Count *c = data;
|
||
c->count++;
|
||
|
||
if (is_last)
|
||
g_assert_cmpint (g_atomic_int_get (&obj->ref_count), ==, 1);
|
||
else
|
||
g_assert_cmpint (g_atomic_int_get (&obj->ref_count), ==, 2);
|
||
}
|
||
|
||
static void
|
||
on_object_notify_switch_to_normal_ref (GObject *object,
|
||
GParamSpec *pspec,
|
||
void *data)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
|
||
obj->notify_called++;
|
||
|
||
g_object_ref (object);
|
||
g_object_remove_toggle_ref (object, obj->toggle_notify, NULL);
|
||
}
|
||
|
||
static void
|
||
on_object_notify_switch_to_toggle_ref (GObject *object,
|
||
GParamSpec *pspec,
|
||
void *data)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
|
||
obj->notify_called++;
|
||
|
||
g_object_add_toggle_ref (object, obj->toggle_notify, &obj->actual);
|
||
g_object_unref (object);
|
||
}
|
||
|
||
static void
|
||
on_object_notify_add_ref (GObject *object,
|
||
GParamSpec *pspec,
|
||
void *data)
|
||
{
|
||
DisposeReffingObject *obj = DISPOSE_REFFING_OBJECT (object);
|
||
int old_toggle_cout = obj->actual.count;
|
||
|
||
obj->notify_called++;
|
||
|
||
g_object_ref (object);
|
||
g_assert_cmpint (obj->actual.count, ==, old_toggle_cout);
|
||
}
|
||
|
||
static void
|
||
test_toggle_ref_and_notify_on_dispose (void)
|
||
{
|
||
DisposeReffingObject *obj;
|
||
gpointer disposed_checker = &obj;
|
||
|
||
/* This tests wants to ensure that toggle signal emission during dispose
|
||
* is properly working if the object is revitalized by adding new references.
|
||
* It also wants to check that toggle notifications are not happening if a
|
||
* notify handler is removing them at this phase.
|
||
*/
|
||
|
||
obj = g_object_new (dispose_reffing_object_get_type (), NULL);
|
||
obj->toggle_notify = toggle_notify_counter;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Convert to toggle notification */
|
||
g_object_add_toggle_ref (G_OBJECT (obj), obj->toggle_notify, &obj->actual);
|
||
g_assert_cmpint (obj->actual.count, ==, 0);
|
||
|
||
obj->notify_handler = G_CALLBACK (on_object_notify);
|
||
g_object_unref (obj);
|
||
g_assert_cmpint (obj->actual.count, ==, 1);
|
||
g_assert_cmpuint (obj->notify_called, ==, 0);
|
||
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Check that notification is triggered after being queued */
|
||
obj->disposing_refs = 1;
|
||
obj->expected.count = 1;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify);
|
||
g_object_remove_toggle_ref (G_OBJECT (obj), obj->toggle_notify, NULL);
|
||
g_assert_cmpint (obj->actual.count, ==, 2);
|
||
g_assert_cmpuint (obj->notify_called, ==, 1);
|
||
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Check that notification is triggered after being queued, but no toggle
|
||
* notification is happening if notify handler switches to normal reference
|
||
*/
|
||
obj->disposing_refs = 1;
|
||
obj->expected.count = 2;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify_switch_to_normal_ref);
|
||
g_object_remove_toggle_ref (G_OBJECT (obj), obj->toggle_notify, NULL);
|
||
g_assert_cmpint (obj->actual.count, ==, 2);
|
||
g_assert_cmpuint (obj->notify_called, ==, 2);
|
||
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Check that notification is triggered after being queued, but that toggle
|
||
* is happening if notify handler switched to toggle reference
|
||
*/
|
||
obj->disposing_refs = 1;
|
||
obj->disposing_refs_all_normal = TRUE;
|
||
obj->expected.count = 2;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify_switch_to_toggle_ref);
|
||
g_object_unref (obj);
|
||
g_assert_cmpint (obj->actual.count, ==, 3);
|
||
g_assert_cmpuint (obj->notify_called, ==, 3);
|
||
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
/* Check that notification is triggered after being queued, but that toggle
|
||
* is not happening if current refcount changed.
|
||
*/
|
||
obj->disposing_refs = 1;
|
||
obj->disposing_refs_all_normal = FALSE;
|
||
obj->expected.count = 3;
|
||
obj->notify_handler = G_CALLBACK (on_object_notify_add_ref);
|
||
g_object_remove_toggle_ref (G_OBJECT (obj), obj->toggle_notify, NULL);
|
||
g_assert_cmpint (obj->actual.count, ==, 3);
|
||
g_assert_cmpuint (obj->notify_called, ==, 4);
|
||
g_object_unref (obj);
|
||
|
||
disposed_checker = &obj;
|
||
g_object_add_weak_pointer (G_OBJECT (obj), &disposed_checker);
|
||
|
||
obj->disposing_refs = 0;
|
||
obj->expected.count = 4;
|
||
g_clear_object (&obj);
|
||
g_assert_null (disposed_checker);
|
||
}
|
||
|
||
static gboolean global_destroyed;
|
||
static gint global_value;
|
||
|
||
static void
|
||
data_destroy (gpointer data)
|
||
{
|
||
g_assert_cmpint (GPOINTER_TO_INT (data), ==, global_value);
|
||
|
||
global_destroyed = TRUE;
|
||
}
|
||
|
||
static void
|
||
test_object_qdata (void)
|
||
{
|
||
GObject *obj;
|
||
gpointer v;
|
||
GQuark quark;
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
|
||
global_value = 1;
|
||
global_destroyed = FALSE;
|
||
g_object_set_data_full (obj, "test", GINT_TO_POINTER (1), data_destroy);
|
||
v = g_object_get_data (obj, "test");
|
||
g_assert_cmpint (GPOINTER_TO_INT (v), ==, 1);
|
||
g_object_set_data_full (obj, "test", GINT_TO_POINTER (2), data_destroy);
|
||
g_assert (global_destroyed);
|
||
global_value = 2;
|
||
global_destroyed = FALSE;
|
||
v = g_object_steal_data (obj, "test");
|
||
g_assert_cmpint (GPOINTER_TO_INT (v), ==, 2);
|
||
g_assert (!global_destroyed);
|
||
|
||
global_value = 1;
|
||
global_destroyed = FALSE;
|
||
quark = g_quark_from_string ("test");
|
||
g_object_set_qdata_full (obj, quark, GINT_TO_POINTER (1), data_destroy);
|
||
v = g_object_get_qdata (obj, quark);
|
||
g_assert_cmpint (GPOINTER_TO_INT (v), ==, 1);
|
||
g_object_set_qdata_full (obj, quark, GINT_TO_POINTER (2), data_destroy);
|
||
g_assert (global_destroyed);
|
||
global_value = 2;
|
||
global_destroyed = FALSE;
|
||
v = g_object_steal_qdata (obj, quark);
|
||
g_assert_cmpint (GPOINTER_TO_INT (v), ==, 2);
|
||
g_assert (!global_destroyed);
|
||
|
||
g_object_set_qdata_full (obj, quark, GINT_TO_POINTER (3), data_destroy);
|
||
global_value = 3;
|
||
global_destroyed = FALSE;
|
||
g_object_unref (obj);
|
||
|
||
g_assert (global_destroyed);
|
||
}
|
||
|
||
typedef struct {
|
||
const gchar *value;
|
||
gint refcount;
|
||
} Value;
|
||
|
||
static gpointer
|
||
ref_value (gpointer value, gpointer user_data)
|
||
{
|
||
Value *v = value;
|
||
Value **old_value_p = user_data;
|
||
|
||
if (old_value_p)
|
||
*old_value_p = v;
|
||
|
||
if (v)
|
||
v->refcount += 1;
|
||
|
||
return value;
|
||
}
|
||
|
||
static void
|
||
unref_value (gpointer value)
|
||
{
|
||
Value *v = value;
|
||
|
||
v->refcount -= 1;
|
||
if (v->refcount == 0)
|
||
g_free (value);
|
||
}
|
||
|
||
static
|
||
Value *
|
||
new_value (const gchar *s)
|
||
{
|
||
Value *v;
|
||
|
||
v = g_new (Value, 1);
|
||
v->value = s;
|
||
v->refcount = 1;
|
||
|
||
return v;
|
||
}
|
||
|
||
static void
|
||
test_object_qdata2 (void)
|
||
{
|
||
GObject *obj;
|
||
Value *v, *v1, *v2, *v3, *old_val;
|
||
GDestroyNotify old_destroy;
|
||
gboolean res;
|
||
|
||
obj = g_object_new (G_TYPE_OBJECT, NULL);
|
||
|
||
v1 = new_value ("bla");
|
||
|
||
g_object_set_data_full (obj, "test", v1, unref_value);
|
||
|
||
v = g_object_get_data (obj, "test");
|
||
g_assert_cmpstr (v->value, ==, "bla");
|
||
g_assert_cmpint (v->refcount, ==, 1);
|
||
|
||
v = g_object_dup_data (obj, "test", ref_value, &old_val);
|
||
g_assert (old_val == v1);
|
||
g_assert_cmpstr (v->value, ==, "bla");
|
||
g_assert_cmpint (v->refcount, ==, 2);
|
||
unref_value (v);
|
||
|
||
v = g_object_dup_data (obj, "nono", ref_value, &old_val);
|
||
g_assert (old_val == NULL);
|
||
g_assert (v == NULL);
|
||
|
||
v2 = new_value ("not");
|
||
|
||
res = g_object_replace_data (obj, "test", v1, v2, unref_value, &old_destroy);
|
||
g_assert (res == TRUE);
|
||
g_assert (old_destroy == unref_value);
|
||
g_assert_cmpstr (v1->value, ==, "bla");
|
||
g_assert_cmpint (v1->refcount, ==, 1);
|
||
|
||
v = g_object_get_data (obj, "test");
|
||
g_assert_cmpstr (v->value, ==, "not");
|
||
g_assert_cmpint (v->refcount, ==, 1);
|
||
|
||
v3 = new_value ("xyz");
|
||
res = g_object_replace_data (obj, "test", v1, v3, unref_value, &old_destroy);
|
||
g_assert (res == FALSE);
|
||
g_assert_cmpstr (v2->value, ==, "not");
|
||
g_assert_cmpint (v2->refcount, ==, 1);
|
||
|
||
unref_value (v1);
|
||
|
||
res = g_object_replace_data (obj, "test", NULL, v3, unref_value, &old_destroy);
|
||
g_assert (res == FALSE);
|
||
g_assert_cmpstr (v2->value, ==, "not");
|
||
g_assert_cmpint (v2->refcount, ==, 1);
|
||
|
||
res = g_object_replace_data (obj, "test", v2, NULL, unref_value, &old_destroy);
|
||
g_assert (res == TRUE);
|
||
g_assert (old_destroy == unref_value);
|
||
g_assert_cmpstr (v2->value, ==, "not");
|
||
g_assert_cmpint (v2->refcount, ==, 1);
|
||
|
||
unref_value (v2);
|
||
|
||
v = g_object_get_data (obj, "test");
|
||
g_assert (v == NULL);
|
||
|
||
res = g_object_replace_data (obj, "test", NULL, v3, unref_value, &old_destroy);
|
||
g_assert (res == TRUE);
|
||
|
||
v = g_object_get_data (obj, "test");
|
||
g_assert (v == v3);
|
||
|
||
ref_value (v3, NULL);
|
||
g_assert_cmpint (v3->refcount, ==, 2);
|
||
g_object_unref (obj);
|
||
g_assert_cmpint (v3->refcount, ==, 1);
|
||
unref_value (v3);
|
||
}
|
||
|
||
int
|
||
main (int argc, char **argv)
|
||
{
|
||
g_test_init (&argc, &argv, NULL);
|
||
|
||
g_setenv ("G_ENABLE_DIAGNOSTIC", "1", TRUE);
|
||
|
||
g_test_add_func ("/type/fundamentals", test_fundamentals);
|
||
g_test_add_func ("/type/qdata", test_type_qdata);
|
||
g_test_add_func ("/type/query", test_type_query);
|
||
g_test_add_func ("/type/class-private", test_class_private);
|
||
g_test_add_func ("/object/clear", test_clear);
|
||
g_test_add_func ("/object/clear-function", test_clear_function);
|
||
g_test_add_func ("/object/set", test_set);
|
||
g_test_add_func ("/object/set-function", test_set_function);
|
||
g_test_add_func ("/object/set/derived-type", test_set_derived_type);
|
||
g_test_add_func ("/object/value", test_object_value);
|
||
g_test_add_func ("/object/initially-unowned", test_initially_unowned);
|
||
g_test_add_func ("/object/weak-pointer", test_weak_pointer);
|
||
g_test_add_func ("/object/weak-pointer/clear", test_weak_pointer_clear);
|
||
g_test_add_func ("/object/weak-pointer/clear-function", test_weak_pointer_clear_function);
|
||
g_test_add_func ("/object/weak-pointer/set", test_weak_pointer_set);
|
||
g_test_add_func ("/object/weak-pointer/set-function", test_weak_pointer_set_function);
|
||
g_test_add_func ("/object/weak-ref", test_weak_ref);
|
||
g_test_add_func ("/object/weak-ref/on-dispose", test_weak_ref_on_dispose);
|
||
g_test_add_func ("/object/weak-ref/on-run-dispose", test_weak_ref_on_run_dispose);
|
||
g_test_add_func ("/object/weak-ref/on-toggle-notify", test_weak_ref_on_toggle_notify);
|
||
g_test_add_func ("/object/weak-ref/in-toggle-notify", test_weak_ref_in_toggle_notify);
|
||
g_test_add_data_func ("/object/weak-ref/concurrent/0", GINT_TO_POINTER (0), test_weak_ref_concurrent);
|
||
g_test_add_data_func ("/object/weak-ref/concurrent/1", GINT_TO_POINTER (1), test_weak_ref_concurrent);
|
||
g_test_add_func ("/object/toggle-ref", test_toggle_ref);
|
||
g_test_add_func ("/object/toggle-ref/ref-on-dispose", test_toggle_ref_on_dispose);
|
||
g_test_add_func ("/object/toggle-ref/ref-and-notify-on-dispose", test_toggle_ref_and_notify_on_dispose);
|
||
g_test_add_func ("/object/qdata", test_object_qdata);
|
||
g_test_add_func ("/object/qdata2", test_object_qdata2);
|
||
|
||
return g_test_run ();
|
||
}
|