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comparison agent/src/share/classes/sun/jvm/hotspot/debugger/DataSource.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 2000-2001 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.debugger;
26
27 import java.io.*;
28
29 /** An abstraction which represents a seekable data source.
30 RandomAccessFile can be trivially mapped to this; in addition, we
31 can support an adapter for addresses, so we can parse DLLs
32 directly out of the remote process's address space. This class is
33 used by the Windows COFF and Posix ELF implementations. */
34
35 public interface DataSource {
36 public byte readByte() throws IOException;
37 public short readShort() throws IOException;
38 public int readInt() throws IOException;
39 public long readLong() throws IOException;
40 public int read(byte[] b) throws IOException;
41 public void seek(long pos) throws IOException;
42 public long getFilePointer() throws IOException;
43 public void close() throws IOException;
44 }