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added race condition tester from Michael Meeks with a couple fixes so it's

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2008-06-10 13:34:01  Tim Janik  <timj@imendio.com>

        * tests/threadtests.c: added race condition tester from Michael Meeks
        with a couple fixes so it's not triggering development warnings. From:
        Bug 537555 - GObject instantiation not thread safe ...


svn path=/trunk/; revision=6983
This commit is contained in:
13:34:01 Tim Janik 2008-06-10 11:35:46 +00:00 committed by Tim Janik
parent e9f756f17e
commit 6908da5a57
2 changed files with 80 additions and 1 deletions
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6
gobject/ChangeLog
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@ -1,3 +1,9 @@
2008-06-10 13:34:01 Tim Janik <timj@imendio.com>
* tests/threadtests.c: added race condition tester from Michael Meeks
with a couple fixes so it's not triggering development warnings. From:
Bug 537555 - GObject instantiation not thread safe ...
2008-06-10 13:15:29 Tim Janik <timj@imendio.com>
* gtype.c (g_type_class_ref): fixed race condition where references to

75
gobject/tests/threadtests.c
View File

@ -109,6 +109,7 @@ G_DEFINE_TYPE_WITH_CODE (MyTester2, my_tester2, G_TYPE_OBJECT,
static void my_tester2_init (MyTester2*t) {}
static void my_tester2_class_init (MyTester2Class*c) { call_counter_init (c); }
static GCond *sync_cond = NULL;
static GMutex *sync_mutex = NULL;
static gpointer
@ -138,7 +139,6 @@ test_threaded_class_init (void)
{
GThread *threads[3] = { NULL, };
/* pause newly created threads */
sync_mutex = g_mutex_new();
g_mutex_lock (sync_mutex);
/* create threads */
threads[0] = g_thread_create (tester_init_thread, (gpointer) my_tester0_get_type(), TRUE, NULL);
@ -158,6 +158,75 @@ test_threaded_class_init (void)
g_assert_cmpint (g_atomic_int_get (&mtsafe_call_counter), ==, unsafe_call_counter);
}
typedef struct {
GObject parent;
char *name;
} PropTester;
typedef GObjectClass PropTesterClass;
G_DEFINE_TYPE (PropTester, prop_tester, G_TYPE_OBJECT);
#define PROP_NAME 1
static void
prop_tester_init (PropTester* t)
{
if (t->name == NULL)
; // neds unit test framework initialization: g_test_bug ("race initializing properties");
}
static void
prop_tester_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{}
static void
prop_tester_class_init (PropTesterClass *c)
{
int i;
GParamSpec *param;
GObjectClass *gobject_class = G_OBJECT_CLASS (c);
gobject_class->set_property = prop_tester_set_property; /* silence GObject checks */
g_mutex_lock (sync_mutex);
g_cond_signal (sync_cond);
g_mutex_unlock (sync_mutex);
for (i = 0; i < 100; i++) /* wait a bit. */
g_thread_yield();
call_counter_init (c);
param = g_param_spec_string ("name", "name_i18n",
"yet-more-wasteful-i18n",
NULL,
G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE |
G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB |
G_PARAM_STATIC_NICK);
g_object_class_install_property (gobject_class, PROP_NAME, param);
}
static gpointer
object_create (gpointer data)
{
GObject *obj = g_object_new (prop_tester_get_type(), "name", "fish", NULL);
g_object_unref (obj);
return NULL;
}
static void
test_threaded_object_init (void)
{
GThread *creator;
g_mutex_lock (sync_mutex);
creator = g_thread_create (object_create, NULL, TRUE, NULL);
/* really provoke the race */
g_cond_wait (sync_cond, sync_mutex);
object_create (NULL);
g_mutex_unlock (sync_mutex);
g_thread_join (creator);
}
int
main (int argc,
char *argv[])
@ -166,7 +235,11 @@ main (int argc,
g_test_init (&argc, &argv, NULL);
g_type_init ();
sync_cond = g_cond_new();
sync_mutex = g_mutex_new();
g_test_add_func ("/GObject/threaded-class-init", test_threaded_class_init);
g_test_add_func ("/GObject/threaded-object-init", test_threaded_object_init);
return g_test_run();
}