зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.9 KiB
Java
88 строки
2.9 KiB
Java
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code, released
|
|
* March 31, 1998.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Patrick C. Beard <beard@netscape.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the
|
|
* terms of the GNU Public License (the "GPL"), in which case the
|
|
* provisions of the GPL are applicable instead of those above.
|
|
* If you wish to allow use of your version of this file only
|
|
* under the terms of the GPL and not to allow others to use your
|
|
* version of this file under the NPL, indicate your decision by
|
|
* deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this
|
|
* file under either the NPL or the GPL.
|
|
*/
|
|
|
|
import java.util.*;
|
|
import java.io.*;
|
|
|
|
public class Reference {
|
|
int mAddress;
|
|
Type mType;
|
|
Object[] mReferences;
|
|
|
|
public Reference(String addr, Type type, Object[] refs) throws NumberFormatException {
|
|
mAddress = Integer.parseInt(addr.substring(2), 16);
|
|
mType = type;
|
|
mReferences = refs;
|
|
}
|
|
|
|
/**
|
|
* Tests whether ref is an interior pointer into this reference.
|
|
*/
|
|
public boolean contains(long address) {
|
|
return (mAddress <= address && address < (mAddress + mType.mSize));
|
|
}
|
|
|
|
/**
|
|
* Sorts in order of increasing addresses.
|
|
*/
|
|
public static class ByAddress extends QuickSort.Comparator {
|
|
public int compare(Object obj1, Object obj2) {
|
|
Reference r1 = (Reference) obj1, r2 = (Reference) obj2;
|
|
return (r1.mAddress - r2.mAddress);
|
|
}
|
|
}
|
|
|
|
public static Reference findNearest(Reference[] sortedRefs, int address) {
|
|
int length = sortedRefs.length;
|
|
int minIndex = 0, maxIndex = length - 1;
|
|
int index = maxIndex / 2;
|
|
while (minIndex <= maxIndex) {
|
|
Reference ref = sortedRefs[index];
|
|
if (address < ref.mAddress) {
|
|
maxIndex = (index - 1);
|
|
index = (minIndex + maxIndex) / 2;
|
|
} else {
|
|
if (address < (ref.mAddress + ref.mType.mSize)) {
|
|
return ref;
|
|
}
|
|
minIndex = (index + 1);
|
|
index = (minIndex + maxIndex) / 2;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|