sl@0: /* GObject - GLib Type, Object, Parameter and Signal Library
sl@0:  * Copyright (C) 2006 Imendio AB
sl@0:  * Portions copyright (c) 2009 Nokia Corporation.  All rights reserved.
sl@0:  * This library is free software; you can redistribute it and/or
sl@0:  * modify it under the terms of the GNU Lesser General Public
sl@0:  * License as published by the Free Software Foundation; either
sl@0:  * version 2 of the License, or (at your option) any later version.
sl@0:  *
sl@0:  * This library is distributed in the hope that it will be useful,
sl@0:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
sl@0:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
sl@0:  * Lesser General Public License for more details.
sl@0:  *
sl@0:  * You should have received a copy of the GNU Lesser General
sl@0:  * Public License along with this library; if not, write to the
sl@0:  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
sl@0:  * Boston, MA 02111-1307, USA.
sl@0:  */
sl@0: #undef  G_LOG_DOMAIN
sl@0: #define G_LOG_DOMAIN "TestSingleton"
sl@0: #include <glib-object.h>
sl@0: #include <string.h>
sl@0: #ifdef __SYMBIAN32__
sl@0: #include "mrt2_glib2_test.h"
sl@0: #endif //__SYMBIAN32__
sl@0: /* --- MySingleton class --- */
sl@0: typedef struct {
sl@0:   GObject parent_instance;
sl@0: } MySingleton;
sl@0: typedef struct {
sl@0:   GObjectClass parent_class;
sl@0: } MySingletonClass;
sl@0: 
sl@0: #define MY_TYPE_SINGLETON         (my_singleton_get_type ())
sl@0: #define MY_SINGLETON(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), MY_TYPE_SINGLETON, MySingleton))
sl@0: #define MY_IS_SINGLETON(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), MY_TYPE_SINGLETON))
sl@0: #define MY_SINGLETON_CLASS(c)     (G_TYPE_CHECK_CLASS_CAST ((c), MY_TYPE_SINGLETON, MySingletonClass))
sl@0: #define MY_IS_SINGLETON_CLASS(c)  (G_TYPE_CHECK_CLASS_TYPE ((c), MY_TYPE_SINGLETON))
sl@0: #define MY_SINGLETON_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), MY_TYPE_SINGLETON, MySingletonClass))
sl@0: 
sl@0: G_DEFINE_TYPE (MySingleton, my_singleton, G_TYPE_OBJECT);
sl@0: 
sl@0: static MySingleton *the_one_and_only = NULL;
sl@0: 
sl@0: /* --- methods --- */
sl@0: static GObject*
sl@0: my_singleton_constructor (GType                  type,
sl@0:                           guint                  n_construct_properties,
sl@0:                           GObjectConstructParam *construct_properties)
sl@0: {
sl@0:   if (the_one_and_only)
sl@0:     return g_object_ref (the_one_and_only);
sl@0:   else
sl@0:     return G_OBJECT_CLASS (my_singleton_parent_class)->constructor (type, n_construct_properties, construct_properties);
sl@0: }
sl@0: 
sl@0: static void
sl@0: my_singleton_init (MySingleton *self)
sl@0: {
sl@0:   g_assert (the_one_and_only == NULL);
sl@0:   the_one_and_only = self;
sl@0: }
sl@0: 
sl@0: static void
sl@0: my_singleton_class_init (MySingletonClass *klass)
sl@0: {
sl@0:   G_OBJECT_CLASS (klass)->constructor = my_singleton_constructor;
sl@0: }
sl@0: 
sl@0: /* --- test program --- */
sl@0: int
sl@0: main (int   argc,
sl@0:       char *argv[])
sl@0: {
sl@0:   MySingleton *singleton, *obj;
sl@0:     #ifdef __SYMBIAN32__
sl@0:   g_log_set_handler (NULL,  G_LOG_FLAG_FATAL| G_LOG_FLAG_RECURSION | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_MESSAGE | G_LOG_LEVEL_INFO | G_LOG_LEVEL_DEBUG, &mrtLogHandler, NULL);
sl@0:   g_set_print_handler(mrtPrintHandler);
sl@0:   #endif /*__SYMBIAN32__*/
sl@0:   g_type_init_with_debug_flags (G_TYPE_DEBUG_OBJECTS | G_TYPE_DEBUG_SIGNALS);
sl@0:   /* create the singleton */
sl@0:   singleton = g_object_new (MY_TYPE_SINGLETON, NULL);
sl@0:   g_assert (singleton != NULL);
sl@0:   /* assert _singleton_ creation */
sl@0:   obj = g_object_new (MY_TYPE_SINGLETON, NULL);
sl@0:   g_assert (singleton == obj);
sl@0:   g_object_unref (obj);
sl@0:   /* shutdown */
sl@0:   g_object_unref (singleton);
sl@0:       #ifdef __SYMBIAN32__
sl@0:   testResultXml("singleton");
sl@0:   #endif //__SYMBIAN32__
sl@0:   return 0;
sl@0: }