OrbReuseTracker.java revision 820:9205e980062a 
1/*
2 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.jndi.cosnaming;
27
28import org.omg.CORBA.ORB;
29
30/**
31 * This class keeps track of references to the shared ORB object
32 * and destroys it when no more references are made to the ORB
33 * object. This object is created for each ORB object that CNCtx
34 * creates.
35 */
36class OrbReuseTracker {
37
38    int referenceCnt;
39    ORB orb;
40
41    private static final boolean debug = false;
42
43    OrbReuseTracker(ORB orb) {
44        this.orb = orb;
45        referenceCnt++;
46        if (debug) {
47             System.out.println("New OrbReuseTracker created");
48        }
49    }
50
51    synchronized void incRefCount() {
52        referenceCnt++;
53        if (debug) {
54             System.out.println("Increment orb ref count to:" + referenceCnt);
55        }
56    }
57
58    synchronized void decRefCount() {
59        referenceCnt--;
60        if (debug) {
61             System.out.println("Decrement orb ref count to:" + referenceCnt);
62        }
63        if ((referenceCnt == 0)) {
64            if (debug) {
65                System.out.println("Destroying the ORB");
66            }
67            orb.destroy();
68        }
69    }
70}
71