/*
* Copyright (c) 2002, 2004, 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.
*
* 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 sun.jvm.hotspot.debugger.windbg;
import java.io.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.debugger.win32.coff.*;
public class AddressDataSource implements DataSource {
public AddressDataSource(Address addr) {
this.addr = addr;
offset = 0;
}
public byte readByte() throws IOException {
try {
byte res = (byte) addr.getCIntegerAt(offset, 1, false);
++offset;
return res;
} catch (UnmappedAddressException e) {
throw (IOException) new IOException("Unmapped address at 0x" + Long.toHexString(e.getAddress())).initCause(e);
} catch (DebuggerException e) {
throw (IOException) new IOException().initCause(e);
}
}
public short readShort() throws IOException {
// NOTE: byte swapping is taken care of at the COFFFileImpl level
int b1 = readByte() & 0xFF;
int b2 = readByte() & 0xFF;
return (short) ((b1 << 8) | b2);
}
public int readInt() throws IOException {
// NOTE: byte swapping is taken care of at the COFFFileImpl level
int b1 = ((int) readByte()) & 0xFF;
int b2 = ((int) readByte()) & 0xFF;
int b3 = ((int) readByte()) & 0xFF;
int b4 = ((int) readByte()) & 0xFF;
return ((b1 << 24) | (b2 << 16) | (b3 << 8) | b4);
}
public long readLong() throws IOException {
// NOTE: byte swapping is taken care of at the COFFFileImpl level
long b1 = ((long) readByte()) & 0xFFL;
long b2 = ((long) readByte()) & 0xFFL;
long b3 = ((long) readByte()) & 0xFFL;
long b4 = ((long) readByte()) & 0xFFL;
long b5 = ((long) readByte()) & 0xFFL;
long b6 = ((long) readByte()) & 0xFFL;
long b7 = ((long) readByte()) & 0xFFL;
long b8 = ((long) readByte()) & 0xFFL;
return (((((b1 << 24) | (b2 << 16) | (b3 << 8) | b4)) << 32) |
((((b5 << 24) | (b6 << 16) | (b7 << 8) | b8))));
}
public int read(byte[] b) throws IOException {
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