0
|
1 /*
|
|
2 * Copyright 2000-2005 Sun Microsystems, Inc. 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.
|
|
8 *
|
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT
|
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
12 * version 2 for more details (a copy is included in the LICENSE file that
|
|
13 * accompanied this code).
|
|
14 *
|
|
15 * You should have received a copy of the GNU General Public License version
|
|
16 * 2 along with this work; if not, write to the Free Software Foundation,
|
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
18 *
|
|
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 package sun.jvm.hotspot.oops;
|
|
26
|
|
27 // A HeapVisitor is used for visiting all object in the heap
|
|
28
|
|
29 public interface HeapVisitor {
|
|
30 // This is called at the beginning of the iteration to provide the
|
|
31 // HeapVisitor with information about the amount of memory which
|
|
32 // will be traversed (for example, for displaying a progress bar)
|
|
33 public void prologue(long usedSize);
|
|
34
|
|
35 // Callback method for each object
|
|
36 // Return true if the iteration should be stopped.
|
|
37 public boolean doObj(Oop obj);
|
|
38
|
|
39 // This is called after the traversal is complete
|
|
40 public void epilogue();
|
|
41 };
|