80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Harbour common hash table implementation
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*
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* Copyright 1999 Ryszard Glab <rglab@imid.med.pl>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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#ifndef HB_HASH_H_
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#define HB_HASH_H_
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#include "hbapi.h"
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#if defined(HB_EXTERN_C)
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extern "C" {
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#endif
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#define HB_HASH_FUNC( hbfunc ) ULONG hbfunc( void *Value, void *Cargo )
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typedef HB_HASH_FUNC( HB_HASH_FUNC_ );
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typedef HB_HASH_FUNC_ *HB_HASH_FUNC_PTR;
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typedef struct HB_HASH_ITEM_
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{
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void *cargo;
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ULONG key;
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struct HB_HASH_ITEM_ *next;
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} HB_HASH_ITEM, *HB_HASH_ITEM_PTR;
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typedef struct HB_HASH_TABLE_
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{
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HB_HASH_ITEM_PTR *pItems;
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ULONG ulTableSize;
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HB_HASH_FUNC_PTR pKeyFunc;
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HB_HASH_FUNC_PTR pDeleteItemFunc;
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HB_HASH_FUNC_PTR pCompFunc;
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} HB_HASH_TABLE, *HB_HASH_TABLE_PTR;
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extern HB_HASH_TABLE_PTR hb_hashTableCreate( ULONG ulSize,
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HB_HASH_FUNC_PTR pHashFunc,
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HB_HASH_FUNC_PTR pDelete,
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HB_HASH_FUNC_PTR pComp );
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extern void hb_hashTableKill( HB_HASH_TABLE_PTR pTable ); /* release all items and the hash table */
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extern BOOL hb_hashTableAdd( HB_HASH_TABLE_PTR pTable, void *pValue ); /* add a new item into the table */
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extern void * hb_hashTableFind( HB_HASH_TABLE_PTR pTable, void *pValue ); /* return the pointer to item's value or NULL if not found */
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extern ULONG hb_hashTableBucket( HB_HASH_TABLE_PTR pTable ); /* return the size of the table */
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#if defined(HB_EXTERN_C)
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}
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#endif
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#endif /* HB_HASH_H_ */
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