fork.java

英国帝国理工学院电脑系多线程课程教学材料之八 ---- 哲学家晚餐范例

package concurrency.diners;

import java.awt.*;

class Fork {

  private boolean taken=false;
  private PhilCanvas display;
  private int identity;

  Fork(PhilCanvas disp, int id)
    { display = disp; identity = id;}

  synchronized void put() {
    taken=false;
    display.setFork(identity,taken);
    notify();
  }

  synchronized void get()
     throws java.lang.InterruptedException {
    while (taken) wait();
    taken=true;
    display.setFork(identity,taken);
  }
}