+void lttng_waiter_wake(struct lttng_waiter *waiter);
+
+void lttng_wait_queue_init(struct lttng_wait_queue *queue);
+
+/*
+ * Atomically add a waiter to a wait queue.
+ * A full memory barrier is issued before being added to the wait queue.
+ */
+void lttng_wait_queue_add(struct lttng_wait_queue *queue, struct lttng_waiter *waiter);
+
+/*
+ * Wake every waiter present in the wait queue and remove them from
+ * the queue.
+ */
+void lttng_wait_queue_wake_all(struct lttng_wait_queue *queue);