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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.views.memory.renderings;
import java.math.BigInteger;
import java.util.ArrayList;
import org.eclipse.core.runtime.PlatformObject;
import org.eclipse.debug.core.model.MemoryByte;
public class MemorySegment extends PlatformObject {
private BigInteger fAddress;
private BigInteger fEndAddress;
private MemoryByte[] fBytes;
private int fNumAddressableUnits;
public MemorySegment(BigInteger address, MemoryByte[] bytes, int numAddressableUnits)
{
fAddress = address;
fBytes = bytes;
fNumAddressableUnits = numAddressableUnits;
}
public BigInteger getAddress() {
return fAddress;
}
public MemoryByte[] getBytes() {
return fBytes;
}
public int getNumAddressableUnits() {
return fNumAddressableUnits;
}
public boolean containsAddress(BigInteger address)
{
if (getAddress().compareTo(address) <= 0 && getEndAddress().compareTo(address) >= 0)
return true;
return false;
}
public BigInteger getEndAddress()
{
if (fEndAddress == null)
{
fEndAddress = fAddress.add(BigInteger.valueOf(fNumAddressableUnits).subtract(BigInteger.ONE));
}
return fEndAddress;
}
/**
* @param start - zero-based start offset
* @param length - number of bytes to get
* @return the bytes from start offset to the end.
*/
public MemoryByte[] getBytes(int start, int length)
{
if (start < 0)
return new MemoryByte[0];
if (start + length > fBytes.length)
return new MemoryByte[0];
ArrayList<MemoryByte> ret = new ArrayList<MemoryByte>();
for (int i=start; i< start+length; i++)
{
ret.add(fBytes[i]);
}
return ret.toArray(new MemoryByte[ret.size()]);
}
}
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