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#include <glib.h>
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#include <glib-object.h>
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#define G_TYPE_TEST (my_test_get_type ())
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#define MY_TEST(test) (G_TYPE_CHECK_INSTANCE_CAST ((test), G_TYPE_TEST, GTest))
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#define MY_IS_TEST(test) (G_TYPE_CHECK_INSTANCE_TYPE ((test), G_TYPE_TEST))
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#define MY_TEST_CLASS(tclass) (G_TYPE_CHECK_CLASS_CAST ((tclass), G_TYPE_TEST, GTestClass))
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#define MY_IS_TEST_CLASS(tclass) (G_TYPE_CHECK_CLASS_TYPE ((tclass), G_TYPE_TEST))
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#define MY_TEST_GET_CLASS(test) (G_TYPE_INSTANCE_GET_CLASS ((test), G_TYPE_TEST, GTestClass))
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enum {
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PROP_0,
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PROP_DUMMY
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};
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typedef struct _GTest GTest;
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typedef struct _GTestClass GTestClass;
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struct _GTest
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{
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GObject object;
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gint id;
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gint dummy;
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gint count;
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gint setcount;
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};
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struct _GTestClass
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{
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GObjectClass parent_class;
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};
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static GType my_test_get_type (void);
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G_DEFINE_TYPE (GTest, my_test, G_TYPE_OBJECT)
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static volatile gboolean stopping;
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static void my_test_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void my_test_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void
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my_test_class_init (GTestClass * klass)
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{
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GObjectClass *gobject_class;
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gobject_class = (GObjectClass *) klass;
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gobject_class->get_property = my_test_get_property;
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gobject_class->set_property = my_test_set_property;
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g_object_class_install_property (gobject_class,
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PROP_DUMMY,
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g_param_spec_int ("dummy",
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NULL,
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NULL,
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0, G_MAXINT, 0,
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G_PARAM_READWRITE));
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}
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static void
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my_test_init (GTest * test)
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{
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static guint static_id = 1;
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test->id = static_id++;
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}
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static void
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my_test_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GTest *test;
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test = MY_TEST (object);
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switch (prop_id)
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{
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case PROP_DUMMY:
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g_value_set_int (value, g_atomic_int_get (&test->dummy));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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my_test_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GTest *test;
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test = MY_TEST (object);
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switch (prop_id)
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{
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case PROP_DUMMY:
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g_atomic_int_set (&test->dummy, g_value_get_int (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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dummy_notify (GObject *object,
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GParamSpec *pspec)
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{
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GTest *test;
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test = MY_TEST (object);
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g_atomic_int_inc (&test->count);
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}
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static void
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my_test_do_property (GTest * test)
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{
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gint dummy;
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g_atomic_int_inc (&test->setcount);
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g_object_get (test, "dummy", &dummy, NULL);
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g_object_set (test, "dummy", dummy + 1, NULL);
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}
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static gpointer
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run_thread (GTest * test)
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{
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gint i = 1;
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while (!stopping) {
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my_test_do_property (test);
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if ((i++ % 10000) == 0)
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{
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g_print (".%c", 'a' + test->id);
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g_thread_yield(); /* force context switch */
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}
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}
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return NULL;
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}
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int
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main (int argc, char **argv)
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{
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gint i;
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GTest *test;
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GArray *test_threads;
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const gint n_threads = 5;
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g_print ("START: %s\n", argv[0]);
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g_log_set_always_fatal (G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL | g_log_set_always_fatal (G_LOG_FATAL_MASK));
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test = g_object_new (G_TYPE_TEST, NULL);
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g_assert (test->count == test->dummy);
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g_signal_connect (test, "notify::dummy", G_CALLBACK (dummy_notify), NULL);
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test_threads = g_array_new (FALSE, FALSE, sizeof (GThread *));
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stopping = FALSE;
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for (i = 0; i < n_threads; i++) {
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GThread *thread;
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thread = g_thread_create ((GThreadFunc) run_thread, test, TRUE, NULL);
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g_array_append_val (test_threads, thread);
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}
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g_usleep (30000000);
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stopping = TRUE;
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g_print ("\nstopping\n");
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/* join all threads */
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for (i = 0; i < n_threads; i++) {
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GThread *thread;
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thread = g_array_index (test_threads, GThread *, i);
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g_thread_join (thread);
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}
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g_print ("stopped\n");
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g_print ("%d %d\n", test->setcount, test->count);
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g_array_free (test_threads, TRUE);
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g_object_unref (test);
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return 0;
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}
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