//
// Copyright (C) 2006 United States Government as represented by the
// Administrator of the National Aeronautics and Space Administration
// (NASA). All Rights Reserved.
//
// This software is distributed under the NASA Open Source Agreement
// (NOSA), version 1.3. The NOSA has been approved by the Open Source
// Initiative. See the file NOSA-1.3-JPF at the top of the distribution
// directory tree for the complete NOSA document.
//
// THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
// KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
// LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
// SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
// A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
// THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
// DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//
public class DiningPhil {
static class Fork {
}
static class Philosopher extends Thread {
Fork left;
Fork right;
public Philosopher(Fork left, Fork right) {
this.left = left;
this.right = right;
//start();
}
public void run() {
// think!
synchronized (left) {
synchronized (right) {
// eat!
}
}
}
}
static int nPhilosophers = 6;
public static void main(String[] args) {
if (args.length > 0){
nPhilosophers = Integer.parseInt(args[0]);
}
//Verify.beginAtomic();
Fork[] forks = new Fork[nPhilosophers];
for (int i = 0; i < nPhilosophers; i++) {
forks[i] = new Fork();
}
for (int i = 0; i < nPhilosophers; i++) {
Philosopher p = new Philosopher(forks[i], forks[(i + 1) % nPhilosophers]);
p.start();
}
//Verify.endAtomic();
}
}