97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*
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*+SNOTICE
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*
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*
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* $XConsortium: HashTable.hh /main/4 1996/04/21 19:45:12 drk $
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*
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* RESTRICTED CONFIDENTIAL INFORMATION:
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*
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* The information in this document is subject to special
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* restrictions in a confidential disclosure agreement bertween
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* HP, IBM, Sun, USL, SCO and Univel. Do not distribute this
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* document outside HP, IBM, Sun, USL, SCO, or Univel wihtout
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* Sun's specific written approval. This documment and all copies
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* and derivative works thereof must be returned or destroyed at
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* Sun's request.
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*
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* Copyright 1993 Sun Microsystems, Inc. All rights reserved.
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*
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*+ENOTICE
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*/
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#ifndef _HASHTABLE_HH
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#define _HASHTABLE_HH
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#include <DtMail/ObjectKey.hh>
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class HashTableImpl : public DtCPlusPlusAllocator {
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public:
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HashTableImpl(int table_size);
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virtual ~HashTableImpl(void);
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virtual void * lookup(ObjectKey &);
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virtual void set(ObjectKey & key, void * value);
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virtual void * remove(ObjectKey & key);
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#define HASHTABLE_HASFOREACH
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typedef int (*HashImplIterator)(ObjectKey &, void * value, void * client_data);
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virtual void forEach(HashImplIterator, void * client_data);
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protected:
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struct HashEntry : public DtCPlusPlusAllocator {
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ObjectKey * key;
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void * value;
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HashEntry *next;
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};
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HashEntry * _hash_table;
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int _table_size;
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};
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template <class Object>
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class HashTable : public DtCPlusPlusAllocator {
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public:
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HashTable(int table_size) : _table(table_size) { }
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Object lookup(ObjectKey & key) { return( (Object)((long)_table.lookup(key)) ); }
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void set(ObjectKey & key, Object obj) {
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_table.set(key, (void *)obj);
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}
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Object remove(ObjectKey & key) { return( (Object)((long)_table.remove(key)) ); }
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typedef int (*HashIterator)(ObjectKey &, Object, void * client_data);
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void forEach(HashTableImpl::HashImplIterator iterator, void * client_data) {
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_table.forEach((HashTableImpl::HashImplIterator)iterator, client_data);
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}
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protected:
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HashTableImpl _table;
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};
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#endif
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