chopstick.java

来自「Thinking in JAVA第四版源代码」· Java 代码 · 共 17 行

//: concurrency/Chopstick.java
// Chopsticks for dining philosophers.

public class Chopstick {
  private boolean taken = false;
  public synchronized
  void take() throws InterruptedException {
    while(taken)
      wait();
    taken = true;
  }
  public synchronized void drop() {
    taken = false;
    notifyAll();
  }
} ///:~