WMap.h
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上传日期:2013-08-04
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- /*
- * Copyright (c) 2001,2002,2003 Mike Matsnev. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice immediately at the beginning of the file, without modification,
- * this list of conditions, and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Absolutely no warranty of function or purpose is made by the author
- * Mike Matsnev.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * $Id: WMap.h,v 1.2.2.1 2003/04/12 22:52:34 mike Exp $
- *
- */
- #ifndef WMAP_H
- #define WMAP_H
- class WMap {
- private:
- enum {
- STARTSIZE=128,
- FILLFACTOR=3
- };
- struct HE {
- HE *next;
- const wchar_t *key;
- UINT hash;
- void *value;
- };
- int m_cursize;
- int m_curmask;
- int m_numkeys;
- HE **m_array;
- FastArray<HE> m_hepool;
- StrBuf m_strbuf;
- HANDLE m_heap;
- bool m_freemem;
- void Extend(); // grow the array
- HE *RealLookup(const wchar_t *key,bool add,bool copykey);
- public:
- WMap(HANDLE heap,bool freemem=false);
- ~WMap();
- bool Lookup(const wchar_t *key,void*& value);
- void Add(const wchar_t *key,void *value) { RealLookup(key,true,false)->value=value; }
- void AddCopy(const wchar_t *key,void *value) { RealLookup(key,true,true)->value=value; }
- void RemoveAll();
- static unsigned int Hash(const wchar_t *data);
- };
- #endif