pjs/xpfe/bootstrap/appleevents/PatriciaTree.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
* The contents of this file are subject to the Mozilla 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/MPL/
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*
* 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.
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*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
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*
* Contributor(s):
* Simon Fraser <sfraser@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
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#ifndef PatricaTree_h_
#define PatricaTree_h_
#include "patricia.h"
// node base class. Subclass for your nodes.
class CPatriciaNode
{
public:
CPatriciaNode() {}
virtual ~CPatriciaNode() {}
};
// tree base class. Subclass for your tree.
class CPatriciaTree
{
public:
typedef const unsigned char* TPatriciaKey;
CPatriciaTree(long keyBitsLen);
virtual ~CPatriciaTree();
// override if you want variable replace functionality
// returns true if replaced
virtual Boolean InsertNode(TPatriciaKey key, CPatriciaNode* nodeData);
// returns true if found
Boolean SeekNode(TPatriciaKey key, CPatriciaNode**outNodeData);
// returns true if entire tree traversed
Boolean Traverse(NodeTraverseFunction traverseFcn, void *arg, void *refCon);
long GetNumNodes();
protected:
// your implementation should override these.
virtual int ReplaceNode(CPatriciaNode**nodeDataPtr, TPatriciaKey key, CPatriciaNode *replaceData);
virtual int FreeNode(CPatriciaNode *nodeData, TPatriciaKey key);
private:
// static callbacks.
static int NodeReplaceCallback(void**nodeDataPtr, unsigned char *key, void *replaceData, void *refCon);
static int NodeFreeCallback(void *nodeData, unsigned char *key, void *refCon);
protected:
PatriciaTreeRef mTree;
long mKeyBits;
};
#endif // PatricaTree_h_