Method complete

output/java_guava/1.4.17/AbstractFuture.java:770–792

Unblocks all threads and runs all listeners.

()

  /** Unblocks all threads and runs all listeners. */

  private void complete() {
    for (Waiter currentWaiter = clearWaiters(); currentWaiter != null; currentWaiter = currentWaiter.next) {
      currentWaiter.unpark();
    }
    // We need to reverse the list to handle buggy listeners that depend on ordering.
    Listener currentListener = clearListeners();
    Listener reversedList = null;
    while (currentListener != null) {
      Listener tmp = currentListener;
      currentListener = currentListener.next;
      tmp.next = reversedList;
      reversedList = tmp;
    }
    for (; reversedList != null; reversedList = reversedList.next) {
      executeListener(reversedList.task, reversedList.executor);
    }
    // We call this after the listeners on the theory that afterDone() will only be used for
    // 'cleanup' oriented tasks (e.g. clearing fields) and so can wait behind listeners which may be
    // executing more important work. A counter argument would be that done() is trusted code and
    // therefore it would be safe to run before potentially slow or poorly behaved listeners.
    // Reevaluate this once we have more examples of afterDone() implementations.
    afterDone();
          }

  /**
   * Callback method that is called exactly once after the future is completed.