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      1 /* GObject - GLib Type, Object, Parameter and Signal Library
      2  * Copyright (C) 2001, 2003 Red Hat, Inc.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Lesser General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Lesser General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Lesser General
     15  * Public License along with this library; if not, write to the
     16  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
     17  * Boston, MA 02111-1307, USA.
     18  */
     19 
     20 #undef	G_LOG_DOMAIN
     21 #define	G_LOG_DOMAIN "TestDefaultIface"
     22 
     23 #undef G_DISABLE_ASSERT
     24 #undef G_DISABLE_CHECKS
     25 #undef G_DISABLE_CAST_CHECKS
     26 
     27 #include <glib-object.h>
     28 
     29 #include "testcommon.h"
     30 #include "testmodule.h"
     31 
     32 /* This test tests getting the default vtable for an interface
     33  * and the initialization and finalization of such default
     34  * interfaces.
     35  *
     36  * We test this both for static and for dynamic interfaces.
     37  */
     38 
     39 /**********************************************************************
     40  * Static interface tests
     41  **********************************************************************/
     42 
     43 typedef struct _TestStaticIfaceClass TestStaticIfaceClass;
     44 
     45 struct _TestStaticIfaceClass
     46 {
     47   GTypeInterface base_iface;
     48   guint val;
     49 };
     50 
     51 #define TEST_TYPE_STATIC_IFACE (test_static_iface_get_type ())
     52 
     53 static void
     54 test_static_iface_default_init (TestStaticIfaceClass *iface)
     55 {
     56   iface->val = 42;
     57 }
     58 
     59 DEFINE_IFACE (TestStaticIface, test_static_iface,
     60 	      NULL, test_static_iface_default_init)
     61 
     62 static void
     63 test_static_iface (void)
     64 {
     65   TestStaticIfaceClass *static_iface;
     66 
     67   /* Not loaded until we call ref for the first time */
     68   static_iface = g_type_default_interface_peek (TEST_TYPE_STATIC_IFACE);
     69   g_assert (static_iface == NULL);
     70 
     71   /* Ref loads */
     72   static_iface = g_type_default_interface_ref (TEST_TYPE_STATIC_IFACE);
     73   g_assert (static_iface && static_iface->val == 42);
     74 
     75   /* Peek then works */
     76   static_iface = g_type_default_interface_peek (TEST_TYPE_STATIC_IFACE);
     77   g_assert (static_iface && static_iface->val == 42);
     78 
     79   /* Unref does nothing */
     80   g_type_default_interface_unref (static_iface);
     81 
     82   /* And peek still works */
     83   static_iface = g_type_default_interface_peek (TEST_TYPE_STATIC_IFACE);
     84   g_assert (static_iface && static_iface->val == 42);
     85 }
     86 
     87 /**********************************************************************
     88  * Dynamic interface tests
     89  **********************************************************************/
     90 
     91 typedef struct _TestDynamicIfaceClass TestDynamicIfaceClass;
     92 
     93 struct _TestDynamicIfaceClass
     94 {
     95   GTypeInterface base_iface;
     96   guint val;
     97 };
     98 
     99 static GType test_dynamic_iface_type;
    100 static gboolean dynamic_iface_init = FALSE;
    101 
    102 #define TEST_TYPE_DYNAMIC_IFACE (test_dynamic_iface_type)
    103 
    104 static void
    105 test_dynamic_iface_default_init (TestStaticIfaceClass *iface)
    106 {
    107   dynamic_iface_init = TRUE;
    108   iface->val = 42;
    109 }
    110 
    111 static void
    112 test_dynamic_iface_default_finalize (TestStaticIfaceClass *iface)
    113 {
    114   dynamic_iface_init = FALSE;
    115 }
    116 
    117 static void
    118 test_dynamic_iface_register (GTypeModule *module)
    119 {
    120   static const GTypeInfo iface_info =
    121     {
    122       sizeof (TestDynamicIfaceClass),
    123       (GBaseInitFunc)	   NULL,
    124       (GBaseFinalizeFunc)  NULL,
    125       (GClassInitFunc)     test_dynamic_iface_default_init,
    126       (GClassFinalizeFunc) test_dynamic_iface_default_finalize
    127     };
    128 
    129   test_dynamic_iface_type = g_type_module_register_type (module, G_TYPE_INTERFACE,
    130 							 "TestDynamicIface", &iface_info, 0);
    131 }
    132 
    133 static void
    134 module_register (GTypeModule *module)
    135 {
    136   test_dynamic_iface_register (module);
    137 }
    138 
    139 static void
    140 test_dynamic_iface (void)
    141 {
    142   GTypeModule *module;
    143   TestDynamicIfaceClass *dynamic_iface;
    144 
    145   module = test_module_new (module_register);
    146 
    147   /* Not loaded until we call ref for the first time */
    148   dynamic_iface = g_type_default_interface_peek (TEST_TYPE_DYNAMIC_IFACE);
    149   g_assert (dynamic_iface == NULL);
    150 
    151   /* Ref loads */
    152   dynamic_iface = g_type_default_interface_ref (TEST_TYPE_DYNAMIC_IFACE);
    153   g_assert (dynamic_iface_init);
    154   g_assert (dynamic_iface && dynamic_iface->val == 42);
    155 
    156   /* Peek then works */
    157   dynamic_iface = g_type_default_interface_peek (TEST_TYPE_DYNAMIC_IFACE);
    158   g_assert (dynamic_iface && dynamic_iface->val == 42);
    159 
    160   /* Unref causes finalize */
    161   g_type_default_interface_unref (dynamic_iface);
    162   g_assert (!dynamic_iface_init);
    163 
    164   /* Peek returns NULL */
    165   dynamic_iface = g_type_default_interface_peek (TEST_TYPE_DYNAMIC_IFACE);
    166   g_assert (dynamic_iface == NULL);
    167 
    168   /* Ref reloads */
    169   dynamic_iface = g_type_default_interface_ref (TEST_TYPE_DYNAMIC_IFACE);
    170   g_assert (dynamic_iface_init);
    171   g_assert (dynamic_iface && dynamic_iface->val == 42);
    172 
    173   /* And Unref causes finalize once more*/
    174   g_type_default_interface_unref (dynamic_iface);
    175   g_assert (!dynamic_iface_init);
    176 }
    177 
    178 int
    179 main (int   argc,
    180       char *argv[])
    181 {
    182   g_log_set_always_fatal (g_log_set_always_fatal (G_LOG_FATAL_MASK) |
    183 			  G_LOG_LEVEL_WARNING |
    184 			  G_LOG_LEVEL_CRITICAL);
    185   g_type_init ();
    186 
    187   test_static_iface ();
    188   test_dynamic_iface ();
    189 
    190   return 0;
    191 }
    192