/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.jndi.cosnaming;

import org.omg.CORBA.ORB;

This class keeps track of references to the shared ORB object
and destroys it when no more references are made to the ORB
object. This object is created for each ORB object that CNCtx
creates.
/**
 * This class keeps track of references to the shared ORB object
 * and destroys it when no more references are made to the ORB
 * object. This object is created for each ORB object that CNCtx
 * creates.
 */
class OrbReuseTracker {

    int referenceCnt;
    ORB orb;

    private static final boolean debug = false;

    OrbReuseTracker(ORB orb) {
        this.orb = orb;
        referenceCnt++;
        if (debug) {
             System.out.println("New OrbReuseTracker created");
        }
    }

    synchronized void incRefCount() {
        referenceCnt++;
        if (debug) {
             System.out.println("Increment orb ref count to:" + referenceCnt);
        }
    }

    synchronized void decRefCount() {
        referenceCnt--;
        if (debug) {
             System.out.println("Decrement orb ref count to:" + referenceCnt);
        }
        if ((referenceCnt == 0)) {
            if (debug) {
                System.out.println("Destroying the ORB");
            }
            orb.destroy();
        }
    }
}