C++ (Cpp) sgen_get_current_collection_generation Exemples

Exemple #1

Fichier : sgen-workers.c Projet : phenixFire/mono

static mono_native_thread_return_t
workers_thread_func (void *data_untyped)
{
	WorkerData *data = data_untyped;
	SgenMajorCollector *major = sgen_get_major_collector ();

	mono_thread_info_register_small_id ();

	if (major->init_worker_thread)
		major->init_worker_thread (data->major_collector_data);

	init_private_gray_queue (data);

	for (;;) {
		gboolean did_work = FALSE;

		SGEN_ASSERT (0, sgen_get_current_collection_generation () != GENERATION_NURSERY, "Why are we doing work while there's a nursery collection happening?");

		while (workers_state.data.state == STATE_WORKING && workers_dequeue_and_do_job (data)) {
			did_work = TRUE;
			/* FIXME: maybe distribute the gray queue here? */
		}

		if (!did_work && (!sgen_gray_object_queue_is_empty (&data->private_gray_queue) || workers_get_work (data))) {
			SgenObjectOperations *ops = sgen_concurrent_collection_in_progress ()
				? &major->major_concurrent_ops
				: &major->major_ops;
			ScanCopyContext ctx = { ops->scan_object, NULL, &data->private_gray_queue };

			g_assert (!sgen_gray_object_queue_is_empty (&data->private_gray_queue));

			while (!sgen_drain_gray_stack (32, ctx)) {
				if (workers_state.data.state == STATE_NURSERY_COLLECTION)
					workers_wait ();
			}
			g_assert (sgen_gray_object_queue_is_empty (&data->private_gray_queue));

			init_private_gray_queue (data);

			did_work = TRUE;
		}

		if (!did_work)
			workers_wait ();
	}

	/* dummy return to make compilers happy */
	return NULL;
}

Exemple #2

gboolean
sgen_cement_lookup_or_register (GCObject *obj)
{
	guint hv;
	int i;
	CementHashEntry *hash = cement_hash;

	if (!cement_enabled)
		return FALSE;

	hv = sgen_aligned_addr_hash (obj);
	i = SGEN_CEMENT_HASH (hv);

	SGEN_ASSERT (5, sgen_ptr_in_nursery (obj), "Can only cement pointers to nursery objects");

	if (!hash [i].obj) {
		GCObject *old_obj;
		old_obj = InterlockedCompareExchangePointer ((gpointer*)&hash [i].obj, obj, NULL);
		/* Check if the slot was occupied by some other object */
		if (old_obj != NULL && old_obj != obj)
			return FALSE;
	} else if (hash [i].obj != obj) {
		return FALSE;
	}

	if (hash [i].count >= SGEN_CEMENT_THRESHOLD)
		return TRUE;

	if (InterlockedIncrement ((gint32*)&hash [i].count) == SGEN_CEMENT_THRESHOLD) {
		SGEN_ASSERT (9, sgen_get_current_collection_generation () >= 0, "We can only cement objects when we're in a collection pause.");
		SGEN_ASSERT (9, SGEN_OBJECT_IS_PINNED (obj), "Can only cement pinned objects");
		SGEN_CEMENT_OBJECT (obj);

		binary_protocol_cement (obj, (gpointer)SGEN_LOAD_VTABLE (obj),
				(int)sgen_safe_object_get_size (obj));
	}

	return FALSE;
}