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      1 #include <unistd.h>
      2 #include <glib.h>
      3 #include <glib-object.h>
      4 
      5 #define G_TYPE_TEST                (my_test_get_type ())
      6 #define MY_TEST(test)              (G_TYPE_CHECK_INSTANCE_CAST ((test), G_TYPE_TEST, GTest))
      7 #define MY_IS_TEST(test)           (G_TYPE_CHECK_INSTANCE_TYPE ((test), G_TYPE_TEST))
      8 #define MY_TEST_CLASS(tclass)      (G_TYPE_CHECK_CLASS_CAST ((tclass), G_TYPE_TEST, GTestClass))
      9 #define MY_IS_TEST_CLASS(tclass)   (G_TYPE_CHECK_CLASS_TYPE ((tclass), G_TYPE_TEST))
     10 #define MY_TEST_GET_CLASS(test)    (G_TYPE_INSTANCE_GET_CLASS ((test), G_TYPE_TEST, GTestClass))
     11 
     12 enum {
     13   PROP_0,
     14   PROP_DUMMY
     15 };
     16 
     17 typedef struct _GTest GTest;
     18 typedef struct _GTestClass GTestClass;
     19 
     20 struct _GTest
     21 {
     22   GObject object;
     23 
     24   gint dummy;
     25 };
     26 
     27 struct _GTestClass
     28 {
     29   GObjectClass parent_class;
     30 };
     31 
     32 static GType my_test_get_type (void);
     33 
     34 static void my_test_class_init (GTestClass * klass);
     35 static void my_test_init (GTest * test);
     36 static void my_test_dispose (GObject * object);
     37 static void my_test_get_property (GObject    *object,
     38                                   guint       prop_id,
     39                                   GValue     *value,
     40                                   GParamSpec *pspec);
     41 static void my_test_set_property (GObject      *object,
     42                                   guint         prop_id,
     43                                   const GValue *value,
     44                                   GParamSpec   *pspec);
     45 
     46 static GObjectClass *parent_class = NULL;
     47 
     48 static GType
     49 my_test_get_type (void)
     50 {
     51   static GType test_type = 0;
     52 
     53   if (!test_type) {
     54     static const GTypeInfo test_info = {
     55       sizeof (GTestClass),
     56       NULL,
     57       NULL,
     58       (GClassInitFunc) my_test_class_init,
     59       NULL,
     60       NULL,
     61       sizeof (GTest),
     62       0,
     63       (GInstanceInitFunc) my_test_init,
     64       NULL
     65     };
     66 
     67     test_type = g_type_register_static (G_TYPE_OBJECT, "GTest",
     68         &test_info, 0);
     69   }
     70   return test_type;
     71 }
     72 
     73 static void
     74 my_test_class_init (GTestClass * klass)
     75 {
     76   GObjectClass *gobject_class;
     77 
     78   gobject_class = (GObjectClass *) klass;
     79 
     80   parent_class = g_type_class_ref (G_TYPE_OBJECT);
     81 
     82   gobject_class->dispose = my_test_dispose;
     83   gobject_class->get_property = my_test_get_property;
     84   gobject_class->set_property = my_test_set_property;
     85 
     86   g_object_class_install_property (gobject_class,
     87 				   PROP_DUMMY,
     88 				   g_param_spec_int ("dummy",
     89 						     NULL,
     90 						     NULL,
     91 						     0, G_MAXINT, 0,
     92 						     G_PARAM_READWRITE));
     93 }
     94 
     95 static void
     96 my_test_init (GTest * test)
     97 {
     98   g_print ("init %p\n", test);
     99 }
    100 
    101 static void
    102 my_test_dispose (GObject * object)
    103 {
    104   GTest *test;
    105 
    106   test = MY_TEST (object);
    107 
    108   g_print ("dispose %p!\n", object);
    109 
    110   G_OBJECT_CLASS (parent_class)->dispose (object);
    111 }
    112 
    113 static void
    114 my_test_get_property (GObject    *object,
    115                       guint       prop_id,
    116                       GValue     *value,
    117                       GParamSpec *pspec)
    118 {
    119   GTest *test;
    120 
    121   test = MY_TEST (object);
    122 
    123   switch (prop_id)
    124     {
    125     case PROP_DUMMY:
    126       g_value_set_int (value, test->dummy);
    127       break;
    128     default:
    129       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
    130       break;
    131     }
    132 }
    133 
    134 static void
    135 my_test_set_property (GObject      *object,
    136                       guint         prop_id,
    137                       const GValue *value,
    138                       GParamSpec   *pspec)
    139 {
    140   GTest *test;
    141 
    142   test = MY_TEST (object);
    143 
    144   switch (prop_id)
    145     {
    146     case PROP_DUMMY:
    147       test->dummy = g_value_get_int (value);
    148       break;
    149     default:
    150       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
    151       break;
    152     }
    153 }
    154 
    155 static gint count = 0;
    156 
    157 static void
    158 dummy_notify (GObject    *object,
    159               GParamSpec *pspec)
    160 {
    161   count++;
    162   if (count % 10000 == 0)
    163     g_print (".");
    164 }
    165 
    166 static void
    167 my_test_do_property (GTest * test)
    168 {
    169   gint dummy;
    170 
    171   g_object_get (test, "dummy", &dummy, NULL);
    172   g_object_set (test, "dummy", dummy + 1, NULL);
    173 }
    174 
    175 int
    176 main (int argc, char **argv)
    177 {
    178   gint i;
    179   GTest *test;
    180 
    181   g_thread_init (NULL);
    182   g_print ("START: %s\n", argv[0]);
    183   g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
    184   g_type_init ();
    185 
    186   test = g_object_new (G_TYPE_TEST, NULL);
    187 
    188   g_signal_connect (test, "notify::dummy", G_CALLBACK (dummy_notify), NULL);
    189 
    190   g_assert (count == test->dummy);
    191 
    192   for (i=0; i<1000000; i++) {
    193     my_test_do_property (test);
    194   }
    195 
    196   g_assert (count == test->dummy);
    197 
    198   return 0;
    199 }
    200