+
+
+LTTNG_HIDDEN
+void lttng_wait_queue_init(struct lttng_wait_queue *queue)
+{
+ cds_wfs_init(&queue->stack);
+}
+
+LTTNG_HIDDEN
+void lttng_wait_queue_add(struct lttng_wait_queue *queue,
+ struct lttng_waiter *waiter)
+{
+ (void) cds_wfs_push(&queue->stack, &waiter->wait_queue_node);
+}
+
+LTTNG_HIDDEN
+void lttng_wait_queue_wake_all(struct lttng_wait_queue *queue)
+{
+ struct cds_wfs_head *waiters;
+ struct cds_wfs_node *iter, *iter_n;
+
+ /* Move all waiters from the queue to our local stack. */
+ waiters = __cds_wfs_pop_all(&queue->stack);
+
+ /* Wake all waiters in our stack head. */
+ cds_wfs_for_each_blocking_safe(waiters, iter, iter_n) {
+ struct lttng_waiter *waiter =
+ container_of(iter, struct lttng_waiter, wait_queue_node);
+
+ /* Don't wake already running threads. */
+ if (waiter->state & WAITER_RUNNING) {
+ continue;
+ }
+
+ lttng_waiter_wake(waiter);
+ }
+}