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test program. covers run first/last/cleanup signal handlers, return value
Fri Mar 9 14:57:17 2001 Tim Janik <timj@gtk.org> * testgruntime.c: test program. covers run first/last/cleanup signal handlers, return value accumulator, signal string returns, and interface types in signal arguments. * gtype.c (g_type_value_table_peek): for interface types without value table, try looking up a value table from an instantiatable prerequisite type (this is safe as an interface may only have one instantiatable prerequisiste). (type_check_is_value_type_U): same here. * gsignal.c (g_signal_newv): assert that return types never have G_SIGNAL_TYPE_STATIC_SCOPE set. (g_signal_newc): only create class closure if the class_offset is not 0.
This commit is contained in:
Tim Janik
Tim Janik
184
gobject/testgobject.c
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184
gobject/testgobject.c
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/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 2001 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "TestObject"
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#include <glib-object.h>
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#define TEST_TYPE_OBJECT (test_object_get_type ())
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#define TEST_OBJECT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), TEST_TYPE_OBJECT, TestObject))
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#define TEST_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TEST_TYPE_OBJECT, TestObjectClass))
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#define TEST_IS_OBJECT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), TEST_TYPE_OBJECT))
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#define TEST_IS_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TEST_TYPE_OBJECT))
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#define TEST_OBJECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TEST_TYPE_OBJECT, TestObjectClass))
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typedef struct _TestIface TestIface;
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typedef struct
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{
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GTypeInterface base_iface;
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} TestIfaceClass;
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typedef struct
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{
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GObject parent_instance;
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} TestObject;
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#define TEST_TYPE_IFACE (test_iface_get_type ())
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#define TEST_IFACE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TEST_TYPE_IFACE, TestIface))
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#define TEST_IS_IFACE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TEST_TYPE_IFACE))
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#define TEST_IFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), TEST_TYPE_IFACE, TestIfaceClass))
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GType
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test_iface_get_type (void)
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{
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static GType test_iface_type = 0;
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if (!test_iface_type)
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{
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static const GTypeInfo test_iface_info =
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{
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sizeof (TestIfaceClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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};
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test_iface_type = g_type_register_static (G_TYPE_INTERFACE, "TestIface", &test_iface_info, 0);
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g_type_interface_add_prerequisite (test_iface_type, G_TYPE_OBJECT);
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}
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return test_iface_type;
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}
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typedef struct
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{
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GObjectClass parent_class;
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gchar* (*test_signal) (TestObject *tobject,
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TestIface *iface_object,
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gpointer tdata);
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} TestObjectClass;
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static void
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test_object_init (TestObject *tobject)
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{
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}
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static gboolean
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test_signal_accumulator (GSignalInvocationHint *ihint,
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GValue *return_accu,
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const GValue *handler_return,
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gpointer data)
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{
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gchar *accu_string = g_value_get_string (return_accu);
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gchar *new_string = g_value_get_string (handler_return);
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gchar *result_string;
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if (accu_string)
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result_string = g_strconcat (accu_string, new_string, NULL);
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else if (new_string)
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result_string = g_strdup (new_string);
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else
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result_string = NULL;
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g_value_set_string_take_ownership (return_accu, result_string);
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return TRUE;
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}
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static gchar*
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test_object_test_signal (TestObject *tobject,
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TestIface *iface_object,
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gpointer tdata)
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{
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g_message ("::test_signal default_handler called");
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g_return_val_if_fail (TEST_IS_IFACE (iface_object), NULL);
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return g_strdup ("<default_handler>");
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}
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static void
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test_object_class_init (TestObjectClass *class)
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{
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/* GObjectClass *gobject_class = G_OBJECT_CLASS (class); */
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class->test_signal = test_object_test_signal;
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g_signal_newc ("test-signal",
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G_OBJECT_CLASS_TYPE (class),
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G_SIGNAL_RUN_FIRST | G_SIGNAL_RUN_LAST | G_SIGNAL_RUN_CLEANUP,
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G_STRUCT_OFFSET (TestObjectClass, test_signal),
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test_signal_accumulator, NULL,
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g_cclosure_marshal_STRING__OBJECT_POINTER,
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G_TYPE_STRING, 2, TEST_TYPE_IFACE, G_TYPE_POINTER);
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}
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GType
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test_object_get_type (void)
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{
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static GType test_object_type = 0;
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if (!test_object_type)
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{
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static const GTypeInfo test_object_info =
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{
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sizeof (TestObjectClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) test_object_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (TestObject),
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5, /* n_preallocs */
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(GInstanceInitFunc) test_object_init,
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};
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GInterfaceInfo iface_info = { NULL, NULL, NULL };
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test_object_type = g_type_register_static (G_TYPE_OBJECT, "TestObject", &test_object_info, 0);
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g_type_add_interface_static (test_object_type, TEST_TYPE_IFACE, &iface_info);
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}
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return test_object_type;
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}
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int
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main (int argc,
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char *argv[])
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{
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TestObject *tobject, *sigarg;
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gchar *string = NULL;
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g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_CRITICAL);
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g_type_init (G_TYPE_DEBUG_OBJECTS | G_TYPE_DEBUG_SIGNALS);
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tobject = g_object_new (TEST_TYPE_OBJECT, NULL);
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sigarg = g_object_new (TEST_TYPE_OBJECT, NULL);
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g_signal_emit_by_name (tobject, "test-signal", sigarg, NULL, &string);
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g_message ("signal return: \"%s\"", string);
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g_free (string);
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g_object_unref (sigarg);
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g_object_unref (tobject);
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g_message ("%s done", argv[0]);
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return 0;
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}
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