| /******************************************************************************* |
| * 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<>(); |
| |
| for (int i=start; i< start+length; i++) |
| { |
| ret.add(fBytes[i]); |
| } |
| return ret.toArray(new MemoryByte[ret.size()]); |
| } |
| |
| } |