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1   /*
2    * Copyright (c) 2006, 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.
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20   * or visit www.oracle.com if you need additional information or have any
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23   */
24  
25  package sun.jvm.hotspot.utilities;
26  
27  /** Indicates progress in iterating the heap. Used by
28      ProgressiveHeapVisitor and implemented by various GUIs. */
29  
30  public interface HeapProgressThunk {
31    /** Will be called periodically with a number between 0 and 1. */
32    public void heapIterationFractionUpdate(double fractionOfHeapVisited);
33  
34    /** Will be called after the iteration is complete. */
35    public void heapIterationComplete();
36  }