*
 * 00/08/01 @(#)Barrier.java   1.3
 *
 * Copyright (c) 2000 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 */

package heaptest;

public class Barrier {

    private int m_numThreads = 0;
    private int m_currentCount = 0;

    public Barrier(int numThreads) {
        m_numThreads = numThreads;
    }

    public void waitForGo() {
        synchronized (this) {
            m_currentCount++;
            if (m_currentCount < m_numThreads) {
                try {
                    wait();
                } catch (InterruptedException exp) {
                    System.out.println("Barrier caught interrupted exception!");
                }
            }
            else notifyAll();
        }
    }

}