359 lines
12 KiB
C
359 lines
12 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
* Harbour Project source code:
|
|
* DBFNTX RDD
|
|
*
|
|
* Copyright 2000 Alexander Kresin <alex@belacy.belgorod.su>
|
|
* www - http://www.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 of the License, or
|
|
* (at your option) any later version, with one exception:
|
|
*
|
|
* The exception is that if you link the Harbour Runtime Library (HRL)
|
|
* and/or the Harbour Virtual Machine (HVM) 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 HRL
|
|
* and/or HVM code into it.
|
|
*
|
|
* 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 program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
|
|
* their web site at http://www.gnu.org/).
|
|
*
|
|
*/
|
|
|
|
#ifndef HB_RDDNTX_H_
|
|
#define HB_RDDNTX_H_
|
|
|
|
#include "hbapirdd.h"
|
|
|
|
#if defined(HB_EXTERN_C)
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* DBFNTX errors */
|
|
|
|
#define EDBF_OPEN_DBF 1001
|
|
#define EDBF_CREATE_DBF 1004
|
|
#define EDBF_READ 1010
|
|
#define EDBF_WRITE 1011
|
|
#define EDBF_CORRUPT 1012
|
|
#define EDBF_DATATYPE 1020
|
|
#define EDBF_DATAWIDTH 1021
|
|
#define EDBF_UNLOCKED 1022
|
|
#define EDBF_SHARED 1023
|
|
#define EDBF_APPENDLOCK 1024
|
|
#define EDBF_READONLY 1025
|
|
#define EDBF_INVALIDKEY 1026
|
|
|
|
|
|
|
|
/* DBFNTX default extensions */
|
|
#define NTX_MEMOEXT ".dbt"
|
|
#define NTX_INDEXEXT ".ntx"
|
|
|
|
/* DBFNTX constants declarations */
|
|
#define TOP_RECORD 1
|
|
#define BTTM_RECORD 2
|
|
#define PREV_RECORD 3
|
|
#define NEXT_RECORD 4
|
|
#define NTX_MAX_REC_NUM 0x7FFFFFFFL
|
|
#define NTX_IGNORE_REC_NUM -1
|
|
|
|
/* forward declarations
|
|
*/
|
|
struct _RDDFUNCS;
|
|
struct _NTXAREA;
|
|
struct _TAGINFO;
|
|
struct _NTXINDEX;
|
|
|
|
typedef struct _KEYINFO
|
|
{
|
|
PHB_ITEM pItem;
|
|
LONG Tag;
|
|
LONG Xtra;
|
|
struct _KEYINFO * pNext;
|
|
} KEYINFO;
|
|
|
|
typedef KEYINFO * LPKEYINFO;
|
|
|
|
|
|
typedef struct HB_PAGEINFO_STRU
|
|
{
|
|
LONG Page;
|
|
LONG Left;
|
|
LONG Right;
|
|
BOOL Changed;
|
|
BOOL NewRoot;
|
|
BOOL LastEntry;
|
|
BOOL Reload;
|
|
BOOL ChkBOF;
|
|
BOOL ChkEOF;
|
|
BYTE PageType;
|
|
LPKEYINFO pKeys;
|
|
USHORT uiKeys;
|
|
SHORT CurKey;
|
|
struct HB_PAGEINFO_STRU * Owner;
|
|
struct HB_PAGEINFO_STRU * Child;
|
|
struct _TAGINFO * TagParent;
|
|
} HB_PAGEINFO;
|
|
|
|
typedef HB_PAGEINFO * LPPAGEINFO;
|
|
|
|
|
|
typedef struct _TAGINFO
|
|
{
|
|
char * TagName;
|
|
char * KeyExpr;
|
|
char * ForExpr;
|
|
PHB_ITEM pKeyItem;
|
|
PHB_ITEM pForItem;
|
|
BOOL AscendKey;
|
|
BOOL UniqueKey;
|
|
BOOL TagChanged;
|
|
BOOL TagBOF;
|
|
BOOL TagEOF;
|
|
BYTE KeyType;
|
|
BYTE OptFlags;
|
|
LONG TagBlock;
|
|
LONG RootBlock;
|
|
USHORT KeyLength;
|
|
USHORT MaxKeys;
|
|
LPKEYINFO CurKeyInfo;
|
|
LPPAGEINFO RootPage;
|
|
struct _NTXINDEX * Owner;
|
|
struct _TAGINFO * pNext;
|
|
} TAGINFO;
|
|
|
|
typedef TAGINFO * LPTAGINFO;
|
|
|
|
typedef struct _NTXINDEX
|
|
{
|
|
char * IndexName;
|
|
BOOL Exact;
|
|
BOOL Corrupted;
|
|
LONG TagRoot;
|
|
LONG NextAvail;
|
|
struct _NTXAREA * Owner;
|
|
FHANDLE DiskFile;
|
|
LPTAGINFO CompoundTag;
|
|
struct _NTXINDEX * pNext; /* The next index in the list */
|
|
} NTXINDEX;
|
|
|
|
typedef NTXINDEX * LPNTXINDEX;
|
|
|
|
|
|
|
|
struct _NTXAREA;
|
|
|
|
/*
|
|
* DBF WORKAREA
|
|
* ------------
|
|
* The Workarea Structure of DBFNTX RDD
|
|
*
|
|
*/
|
|
|
|
typedef struct _NTXAREA
|
|
{
|
|
struct _RDDFUNCS * lprfsHost; /* Virtual method table for this workarea */
|
|
USHORT uiArea; /* The number assigned to this workarea */
|
|
void * atomAlias; /* Pointer to the alias symbol for this workarea */
|
|
USHORT uiFieldExtent; /* Total number of fields allocated */
|
|
USHORT uiFieldCount; /* Total number of fields used */
|
|
LPFIELD lpFields; /* Pointer to an array of fields */
|
|
void * lpFieldExtents; /* Void ptr for additional field properties */
|
|
PHB_ITEM valResult; /* All purpose result holder */
|
|
BOOL fTop; /* TRUE if "top" */
|
|
BOOL fBottom; /* TRUE if "bottom" */
|
|
BOOL fBof; /* TRUE if "bof" */
|
|
BOOL fEof; /* TRUE if "eof" */
|
|
BOOL fFound; /* TRUE if "found" */
|
|
DBSCOPEINFO dbsi; /* Info regarding last LOCATE */
|
|
DBFILTERINFO dbfi; /* Filter in effect */
|
|
LPDBORDERCONDINFO lpdbOrdCondInfo;
|
|
LPDBRELINFO lpdbRelations; /* Parent/Child relationships used */
|
|
USHORT uiParents; /* Number of parents for this area */
|
|
USHORT heap;
|
|
USHORT heapSize;
|
|
USHORT rddID;
|
|
|
|
/*
|
|
* DBFS's additions to the workarea structure
|
|
*
|
|
* Warning: The above section MUST match WORKAREA exactly! Any
|
|
* additions to the structure MUST be added below, as in this
|
|
* example.
|
|
*/
|
|
|
|
FHANDLE hDataFile; /* Data file handle */
|
|
FHANDLE hMemoFile; /* Memo file handle */
|
|
USHORT uiHeaderLen; /* Size of header */
|
|
USHORT uiRecordLen; /* Size of record */
|
|
ULONG ulRecCount; /* Total records */
|
|
char * szDataFileName; /* Name of data file */
|
|
char * szMemoFileName; /* Name of memo file */
|
|
BOOL fHasMemo; /* WorkArea with Memo fields */
|
|
BOOL fHasTags; /* WorkArea with MDX or CDX index */
|
|
BOOL fShared; /* Shared file */
|
|
BOOL fReadonly; /* Read only file */
|
|
USHORT * pFieldOffset; /* Pointer to field offset array */
|
|
BYTE * pRecord; /* Buffer of record data */
|
|
BOOL fValidBuffer; /* State of buffer */
|
|
BOOL fPositioned; /* Positioned record */
|
|
ULONG ulRecNo; /* Current record */
|
|
BOOL fRecordChanged; /* Record changed */
|
|
BOOL fAppend; /* TRUE if new record is added */
|
|
BOOL fDeleted; /* TRUE if record is deleted */
|
|
BOOL fUpdateHeader; /* Update header of file */
|
|
BOOL fFLocked; /* TRUE if file is locked */
|
|
LPDBRELINFO lpdbPendingRel; /* Pointer to parent rel struct */
|
|
BYTE bYear; /* Last update */
|
|
BYTE bMonth;
|
|
BYTE bDay;
|
|
ULONG * pLocksPos; /* List of records locked */
|
|
ULONG ulNumLocksPos; /* Number of records locked */
|
|
|
|
/*
|
|
* NTX's additions to the workarea structure
|
|
*
|
|
* Warning: The above section MUST match WORKAREA exactly! Any
|
|
* additions to the structure MUST be added below, as in this
|
|
* example.
|
|
*/
|
|
|
|
USHORT uiOrder; /* Number of current order */
|
|
LPNTXINDEX lpNtxIndex; /* Pointer to indexes array */
|
|
|
|
|
|
} NTXAREA;
|
|
|
|
typedef NTXAREA * LPNTXAREA;
|
|
|
|
#ifndef NTXAREAP
|
|
#define NTXAREAP LPNTXAREA
|
|
#endif
|
|
|
|
|
|
/*
|
|
* -- DBFNTX METHODS --
|
|
*/
|
|
|
|
#define SUPERTABLE ( &ntxSuper )
|
|
|
|
#define ntxBof NULL
|
|
#define ntxEof NULL
|
|
#define ntxFound NULL
|
|
static ERRCODE ntxGoBottom( NTXAREAP pArea );
|
|
#define ntxGoTo NULL
|
|
#define ntxGoToId NULL
|
|
static ERRCODE ntxGoTop( NTXAREAP pArea );
|
|
static ERRCODE ntxSeek( NTXAREAP pArea, BOOL bSoftSeek, PHB_ITEM pKey, BOOL bFindLast );
|
|
#define ntxSkip NULL
|
|
#define ntxSkipFilter NULL
|
|
#define ntxSkipRaw NULL
|
|
#define ntxAddField NULL
|
|
#define ntxAppend NULL
|
|
#define ntxCreateFields NULL
|
|
#define ntxDeleteRec NULL
|
|
#define ntxDeleted NULL
|
|
#define ntxFieldCount NULL
|
|
#define ntxFieldDisplay NULL
|
|
#define ntxFieldInfo NULL
|
|
#define ntxFieldName NULL
|
|
#define ntxFlush NULL
|
|
#define ntxGetRec NULL
|
|
#define ntxGetValue NULL
|
|
#define ntxGetVarLen NULL
|
|
#define ntxGoCold NULL
|
|
#define ntxGoHot NULL
|
|
#define ntxPutRec NULL
|
|
#define ntxPutValue NULL
|
|
#define ntxRecall NULL
|
|
#define ntxRecCount NULL
|
|
#define ntxRecInfo NULL
|
|
#define ntxRecNo NULL
|
|
#define ntxSetFieldsExtent NULL
|
|
#define ntxAlias NULL
|
|
static ERRCODE ntxClose( NTXAREAP pArea );
|
|
/* Close workarea - at first we mus close all indexes and than close
|
|
workarea */
|
|
#define ntxCreate NULL
|
|
#define ntxInfo NULL
|
|
#define ntxNewArea NULL
|
|
#define ntxOpen NULL
|
|
#define ntxRelease NULL
|
|
static ERRCODE ntxStructSize( NTXAREAP pArea, USHORT * uiSize );
|
|
#define ntxSysName NULL
|
|
#define ntxEval NULL
|
|
#define ntxPack NULL
|
|
#define ntPackRec NULL
|
|
#define ntxSort NULL
|
|
#define ntxTrans NULL
|
|
#define ntxTransRec NULL
|
|
#define ntxZap NULL
|
|
#define ntxchildEnd NULL
|
|
#define ntxchildStart NULL
|
|
#define ntxchildSync NULL
|
|
#define ntxsyncChildren NULL
|
|
#define ntxclearRel NULL
|
|
#define ntxforceRel NULL
|
|
#define ntxrelArea NULL
|
|
#define ntxrelEval NULL
|
|
#define ntxrelText NULL
|
|
#define ntxsetRel NULL
|
|
static ERRCODE ntxOrderListAdd( NTXAREAP pArea, LPDBORDERINFO pOrderInfo );
|
|
/* Open next index */
|
|
static ERRCODE ntxOrderListClear( NTXAREAP pArea );
|
|
/* Close all indexes */
|
|
#define ntxOrderListDelete NULL
|
|
static ERRCODE ntxOrderListFocus( NTXAREAP pArea, LPDBORDERINFO pOrderInfo );
|
|
#define ntxOrderListRebuild NULL
|
|
#define ntxOrderCondition NULL
|
|
static ERRCODE ntxOrderCreate( NTXAREAP pArea, LPDBORDERCREATEINFO pOrderInfo );
|
|
/* Create new Index */
|
|
#define ntxOrderDestroy NULL
|
|
static ERRCODE ntxOrderInfo( NTXAREAP pArea, USHORT uiIndex, LPDBORDERINFO pInfo );
|
|
/* Some information about index */
|
|
#define ntxClearFilter NULL
|
|
#define ntxClearLocate NULL
|
|
#define ntxClearScope NULL
|
|
#define ntxCountScope NULL
|
|
#define ntxFilterText NULL
|
|
#define ntxScopeInfo NULL
|
|
#define ntxSetFilter NULL
|
|
#define ntxSetLocate NULL
|
|
#define ntxSetScope NULL
|
|
#define ntxSkipScope NULL
|
|
#define ntxCompile NULL
|
|
#define ntxError NULL
|
|
#define ntxEvalBlock NULL
|
|
#define ntxRawLock NULL
|
|
#define ntxLock NULL
|
|
#define ntxUnLock NULL
|
|
#define ntxCloseMemFile NULL
|
|
#define ntxCreateMemFile NULL
|
|
#define ntxGetValueFile NULL
|
|
#define ntxOpenMemFile NULL
|
|
#define ntxPutValueFile NULL
|
|
#define ntxReadDBHeader NULL
|
|
#define ntxWriteDBHeader NULL
|
|
#define ntxWhoCares NULL
|
|
|
|
#if defined(HB_EXTERN_C)
|
|
}
|
|
#endif
|
|
|
|
#endif /* HB_RDDNTX_H_ */
|