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