Files
harbour-core/harbour/include/hbhash.h
Viktor Szakats d430d3b278 2011-02-28 20:53 UTC+0100 Viktor Szakats (harbour.01 syenar.hu)
* include/hbdefs.h
    + Added HB_EXPORT_INT macro similar to HB_EXPORT, but used for
      exported _internal_ functions. (we may easily rename this
      to something else if a better idea pops up)
    ; TODO: Change HB_EXPORT to HB_EXPORT_INT for rest of internal functions.

  * include/hbpp.h
  * include/hbapi.h
  * include/hbcomp.h
  * include/hbexprop.h
  * include/hbhash.h
    + Using HB_EXPORT_INT to export functions.

  * contrib/hbide/hbide.hbp
  * contrib/hbrun/hbrun.hbp
    ! Deleted bad hack linking in hbcplr, hbpp, hbcommon on non-mingw
      win compilers.
2011-02-28 19:54:13 +00:00

100 lines
4.4 KiB
C

/*
* $Id$
*/
/*
* Harbour Project source code:
* Harbour common hash table implementation
*
* Copyright 1999 Ryszard Glab <rglab@imid.med.pl>
* www - http://harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#ifndef HB_HASH_H_
#define HB_HASH_H_
#include "hbapi.h"
HB_EXTERN_BEGIN
struct HB_HASH_TABLE_;
#define HB_HASH_FUNC( hbfunc ) HB_SIZE hbfunc( struct HB_HASH_TABLE_ * HashPtr, const void * Value, const void * Cargo )
typedef HB_HASH_FUNC( HB_HASH_FUNC_ );
typedef HB_HASH_FUNC_ * HB_HASH_FUNC_PTR;
typedef struct HB_HASH_ITEM_
{
const void * ValPtr; /* value stored in the hash table */
const void * KeyPtr;
HB_SIZE key;
struct HB_HASH_ITEM_ *next;
} HB_HASH_ITEM, * HB_HASH_ITEM_PTR;
typedef struct HB_HASH_TABLE_
{
HB_HASH_ITEM_PTR * pItems; /* pointer to items */
HB_SIZE nTableSize; /* the table size - number of slots */
HB_SIZE nCount; /* number of items stored in the table */
HB_SIZE nUsed; /* number of used slots */
HB_HASH_FUNC_PTR pKeyFunc; /* pointer to func that returns key value */
HB_HASH_FUNC_PTR pDeleteItemFunc; /* ptr to func that deletes value stored in the table */
HB_HASH_FUNC_PTR pCompFunc; /* ptr to func that compares two items */
} HB_HASH_TABLE, * HB_HASH_TABLE_PTR;
extern HB_EXPORT_INT HB_HASH_TABLE_PTR hb_hashTableCreate( HB_SIZE nSize,
HB_HASH_FUNC_PTR pHashFunc,
HB_HASH_FUNC_PTR pDelete,
HB_HASH_FUNC_PTR pComp );
extern HB_EXPORT_INT void hb_hashTableKill( HB_HASH_TABLE_PTR pTable ); /* release all items and the hash table */
extern HB_EXPORT_INT HB_BOOL hb_hashTableAdd( HB_HASH_TABLE_PTR pTable, const void * pKey, const void * pValue ); /* add a new item into the table */
extern HB_EXPORT_INT HB_BOOL hb_hashTableDel( HB_HASH_TABLE_PTR pTable, const void * pKey ); /* delete an item from the table */
extern HB_EXPORT_INT const void * hb_hashTableFind( HB_HASH_TABLE_PTR pTable, const void * pKey ); /* return the pointer to item's value or NULL if not found */
extern HB_EXPORT_INT HB_HASH_TABLE_PTR hb_hashTableResize( HB_HASH_TABLE_PTR pTable, HB_SIZE nNewSize ); /* resize the hash table */
extern HB_EXPORT_INT HB_SIZE hb_hashTableSize( HB_HASH_TABLE_PTR pTable ); /* return the hash table size */
HB_EXTERN_END
#endif /* HB_HASH_H_ */