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gio/tests: Ensure that cancellable is cancelled when emitting the signal

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Use a race between threads resetting and cancelling a cancellable and
ensure that when we call the callback the cancellable is cancelled
This commit is contained in:
Marco Trevisan (Treviño) 2022-06-22 00:37:22 +02:00
parent 62192925b6
commit e218371f19
1 changed files with 65 additions and 0 deletions
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65
gio/tests/cancellable.c
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@ -578,6 +578,70 @@ test_cancellable_disconnect_on_cancelled_callback_hangs (void)
g_object_unref (cancellable);
}
static gpointer
repeatedly_cancelling_thread (gpointer data)
{
GCancellable *cancellable = data;
const guint iterations = 10000;
for (guint i = 0; i < iterations; ++i)
g_cancellable_cancel (cancellable);
return NULL;
}
static gpointer
repeatedly_resetting_thread (gpointer data)
{
GCancellable *cancellable = data;
const guint iterations = 10000;
for (guint i = 0; i < iterations; ++i)
g_cancellable_reset (cancellable);
return NULL;
}
static void
on_racy_cancellable_cancelled (GCancellable *cancellable,
gpointer data)
{
gboolean *callback_called = data;
g_assert_true (g_cancellable_is_cancelled (cancellable));
g_atomic_int_set (callback_called, TRUE);
}
static void
test_cancellable_cancel_reset_races (void)
{
GCancellable *cancellable;
GThread *resetting_thread = NULL;
GThread *cancelling_thread = NULL;
gboolean callback_called = FALSE;
g_test_summary ("Tests threads racing for cancelling and resetting a GCancellable");
cancellable = g_cancellable_new ();
g_cancellable_connect (cancellable, G_CALLBACK (on_racy_cancellable_cancelled),
&callback_called, NULL);
g_assert_false (callback_called);
resetting_thread = g_thread_new ("/cancellable/cancel-reset-races/resetting",
repeatedly_resetting_thread,
cancellable);
cancelling_thread = g_thread_new ("/cancellable/cancel-reset-races/cancelling",
repeatedly_cancelling_thread, cancellable);
g_thread_join (g_steal_pointer (&cancelling_thread));
g_thread_join (g_steal_pointer (&resetting_thread));
g_assert_true (callback_called);
g_object_unref (cancellable);
}
int
main (int argc, char *argv[])
{
@ -589,6 +653,7 @@ main (int argc, char *argv[])
g_test_add_func ("/cancellable/poll-fd", test_cancellable_poll_fd);
g_test_add_func ("/cancellable/poll-fd-cancelled", test_cancellable_cancelled_poll_fd);
g_test_add_func ("/cancellable/poll-fd-cancelled-threaded", test_cancellable_cancelled_poll_fd_threaded);
g_test_add_func ("/cancellable/cancel-reset-races", test_cancellable_cancel_reset_races);
g_test_add_func ("/cancellable-source/threaded-dispose", test_cancellable_source_threaded_dispose);
return g_test_run ();