예제 #1
0
  private void init(int capacity) throws IllegalArgumentException {
    System.out.println("WaitFreeReadWriteQueue init");
    if (capacity <= 0)
      throw new IllegalArgumentException("maximum cannot be less than or equal to 0");
    this.emptySem = new SemHolder(capacity);
    this.fullSem = new SemHolder(0);

    this.memArea = ImmortalMemory.instance();
    this.theQueue = this.memArea.newObjectArray(capacity + 1);
    this.queueSize = (capacity + 1);
  }
  /** Return an instance of a DistributedRoundRobinScheduler */
  public static DistributedRoundRobinScheduler instance() {
    if (instance == null) {
      ImmortalMemory.instance()
          .enter(
              new Runnable() {
                public void run() {
                  instance = new DistributedRoundRobinScheduler();
                }
              });
    }

    return instance;
  }