dict.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _DICT_H_
- #define _DICT_H_
- extern unsigned int default_strhash(const char *key);
- class Dict;
- class Dict_entry
- {
- public:
- char* key;
- void* obj;
- private:
- friend class Dict;
- unsigned int hash;
- Dict_entry* next;
- };
- class Dict
- {
- public:
- typedef const char* Key;
- Dict(unsigned int nbuckets=16);
- Dict(int(*comp)(const char*,const char*),
- unsigned int(*hash)(const char*) = default_strhash,
- unsigned int nbuckets=16);
- ~Dict();
- Dict_entry* enter(Key key, void* obj);
- void* remove(Key key);
- Dict_entry* find(Key key);
- void first(unsigned int&h, Dict_entry*& e);
- void next(unsigned int& h, Dict_entry*& e);
- int size();
- #ifdef XXXAAK_AWAITING_CR
- Dict_entry* enter(Key key, void* obj, UINT32& hashId);
- void* remove(UINT32 hashId);
- Dict_entry* find(UINT32 hashId);
- #endif
- private:
- unsigned int _count;
- unsigned int _nbuckets;
- Dict_entry** _table;
- int (*_compare)(const char*, const char*);
- unsigned int (*_hash)(const char*);
- void init();
- };
- inline int
- Dict::size()
- {
- return _count;
- }
- inline void
- Dict::first(unsigned int&h, Dict_entry*& e)
- {
- for (unsigned int i = 0; i < _nbuckets; i++)
- if (_table[i])
- {
- h = i;
- e = _table[i];
- return;
- }
- e = 0;
- }
- class Dict_iterator
- {
- public:
- Dict_iterator(Dict*d);
- Dict_entry* operator*();
- Dict_entry* operator ++() { _d->next(_h, _e); return _e;}
- int operator!=(const Dict_iterator& rhs);
- int operator==(const Dict_iterator& rhs);
- private:
- Dict* _d;
- unsigned int _h;
- Dict_entry* _e;
- };
- inline
- Dict_iterator::Dict_iterator(Dict*d): _d(d)
- {
- _d->first(_h,_e);
- }
- inline int
- Dict_iterator::operator!=(const Dict_iterator& rhs)
- {
- return _e != rhs._e;
- }
- inline int
- Dict_iterator::operator==(const Dict_iterator& rhs)
- {
- return _e == rhs._e;
- }
- inline Dict_entry*
- Dict_iterator::operator*()
- {
- return _e;
- }
- #endif/*_DICT_H_*/