/*

 * 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.

 */

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();

        }

    }

}