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87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Simon Fraser <sfraser@netscape.com>
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*/
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#ifndef PatricaTree_h_
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#define PatricaTree_h_
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#include "patricia.h"
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// node base class. Subclass for your nodes.
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class CPatriciaNode
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{
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public:
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CPatriciaNode() {}
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virtual ~CPatriciaNode() {}
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};
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// tree base class. Subclass for your tree.
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class CPatriciaTree
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{
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public:
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typedef const unsigned char* TPatriciaKey;
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CPatriciaTree(long keyBitsLen);
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virtual ~CPatriciaTree();
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// override if you want variable replace functionality
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// returns true if replaced
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virtual Boolean InsertNode(TPatriciaKey key, CPatriciaNode* nodeData);
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// returns true if found
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Boolean SeekNode(TPatriciaKey key, CPatriciaNode**outNodeData);
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// returns true if entire tree traversed
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Boolean Traverse(NodeTraverseFunction traverseFcn, void *arg, void *refCon);
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long GetNumNodes();
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protected:
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// your implementation should override these.
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virtual int ReplaceNode(CPatriciaNode**nodeDataPtr, TPatriciaKey key, CPatriciaNode *replaceData);
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virtual int FreeNode(CPatriciaNode *nodeData, TPatriciaKey key);
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private:
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// static callbacks.
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static int NodeReplaceCallback(void**nodeDataPtr, unsigned char *key, void *replaceData, void *refCon);
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static int NodeFreeCallback(void *nodeData, unsigned char *key, void *refCon);
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protected:
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PatriciaTreeRef mTree;
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long mKeyBits;
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};
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#endif // PatricaTree_h_
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