Method clearWaiters

output/java_guava/1.4.19/AbstractFuture.java:836–842

Clears the #waiters list and returns the most recently added value.

()

  /** Clears the {@link #waiters} list and returns the most recently added value. */

  private Waiter clearWaiters() {
    Waiter head;
    do {
      head = waiters;
    } while (!ATOMIC_HELPER.casWaiters(this, head, Waiter.TOMBSTONE));
    return head;
  }

  /** Clears the {@link #listeners} list and returns the most recently added value. */