Mercurial > hg > Members > kono > jpf-core
diff src/examples/DiningPhil.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/examples/DiningPhil.java Fri Jan 23 10:14:01 2015 -0800 @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2014, United States Government, as represented by the + * Administrator of the National Aeronautics and Space Administration. + * All rights reserved. + * + * The Java Pathfinder core (jpf-core) platform is licensed under the + * Apache License, Version 2.0 (the "License"); you may not use this file except + * in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0. + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +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(); + } + + @Override + 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(); + } +} \ No newline at end of file