fivedev/harbour-core
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
9f16c2bf8e42e6a65d030e2671f6d1698a3bd86b
harbour-core/include/hbrdddbf.h
Viktor Szakats 9f16c2bf8e 2017-08-13 18:27 UTC Viktor Szakats (vszakats users.noreply.github.com) 
* *
    * update copyright headers with new FSF postal address
    * COPYING.txt -> LICENSE.txt (rest of repo to be synced)
2017-08-13 18:38:59 +00:00

276 lines
12 KiB
C
Raw Blame History

/*
* DBF RDD module
*
* Copyright 1999 Bruno Cantero <bruno@issnet.net>
*
* 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 program; see the file LICENSE.txt. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
*
* 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_RDDDBF_H_
#define HB_RDDDBF_H_
#include "hbapirdd.h"
#include "hbdbferr.h"
#include "hbdbf.h"
HB_EXTERN_BEGIN
/* DBF default file extensions */
#define DBF_TABLEEXT ".dbf"
/* DBF locking schemes */
#define DBF_LOCKPOS_CLIPPER 1000000000UL
#define DBF_LOCKPOS_CLIPPER2 4000000000UL
#define DBF_LOCKPOS_COMIX 1000000000UL
#define DBF_LOCKPOS_VFP 0x40000000UL
#define DBF_LOCKPOS_VFPX 0x7ffffffeUL
#define DBF_LOCKPOS_HB32 4000000000UL
#define DBF_LOCKPOS_HB64 HB_LL( 0x7F00000000000000 )
#define DBF_LOCKDIR_CLIPPER 1
#define DBF_LOCKDIR_CLIPPER2 1
#define DBF_LOCKDIR_COMIX 1
#define DBF_LOCKDIR_VFP 2 /* lock forward at at record offset */
#define DBF_LOCKDIR_VFPX -1
#define DBF_LOCKDIR_HB32 1
#define DBF_LOCKDIR_HB64 1
#define DBF_FLCKSIZE_CLIPPER 1000000000UL
#define DBF_FLCKSIZE_CLIPPER2 294967295UL
#define DBF_FLCKSIZE_COMIX 1000000000UL
#define DBF_FLCKSIZE_VFP 0x3ffffffdUL
#define DBF_FLCKSIZE_VFPX 0x07ffffffUL
#define DBF_FLCKSIZE_HB32 294967295UL
#define DBF_FLCKSIZE_HB64 0xfffffffeUL
#define DBF_RLCKSIZE_CLIPPER 1UL
#define DBF_RLCKSIZE_CLIPPER2 1UL
#define DBF_RLCKSIZE_COMIX 1UL
#define DBF_RLCKSIZE_VFP 1UL
#define DBF_RLCKSIZE_VFPX 1UL
#define DBF_RLCKSIZE_HB32 1UL
#define DBF_RLCKSIZE_HB64 1UL
#define IDX_LOCKPOS_CLIPPER 1000000000UL
#define IDX_LOCKPOS_CLIPPER2 1000000000UL
#define IDX_LOCKPOS_COMIX 0xfffeffffUL
#define IDX_LOCKPOS_VFP 0x7ffffffeUL
#define IDX_LOCKPOS_HB32 0xfffeffffUL
#define IDX_LOCKPOS_HB64 HB_LL( 0x7FFFFFFF00000001 )
#define IDX_LOCKPOOL_CLIPPER 0UL
#define IDX_LOCKPOOL_CLIPPER2 0UL
#define IDX_LOCKPOOL_COMIX 0x00010000UL
#define IDX_LOCKPOOL_VFP 0UL
#define IDX_LOCKPOOL_HB32 0x00010000UL
#define IDX_LOCKPOOL_HB64 0x00010000UL
/* Index dirty read flags */
#define HB_IDXREAD_CLEAN 0
#define HB_IDXREAD_DEFAULT 1
#define HB_IDXREAD_DIRTY 2
#define HB_IDXREAD_CLEANMASK HB_IDXREAD_DIRTY
#define HB_IDXREAD_DIRTYMASK (HB_IDXREAD_DIRTY|HB_IDXREAD_DEFAULT)
#define DBFNODE_DATA( r ) ( ( LPDBFDATA ) hb_stackGetTSD( ( PHB_TSD ) \
( r )->lpvCargo ) )
#define DBFAREA_DATA( w ) DBFNODE_DATA( SELF_RDDNODE( &( w )->area ) )
#define HB_DIRTYREAD( w ) ( ( DBFAREA_DATA( w )->uiDirtyRead & \
( w )->uiDirtyRead ) != 0 )
/*
* Private DBF* RDD data kept in RDDNODE
*/
typedef struct _DBFDATA
{
char szTableExt[ HB_MAX_FILE_EXT + 1 ];
char szIndexExt[ HB_MAX_FILE_EXT + 1 ];
char szMemoExt[ HB_MAX_FILE_EXT + 1 ];
char * szPasswd;
char * szPendingPasswd;
char * szTrigger;
char * szPendingTrigger;
HB_BYTE bLockType; /* 0 */
HB_BYTE bTableType; /* DB_DBF_STD */
HB_BYTE bCryptType; /* DB_CRYPT_NONE */
HB_BYTE bMemoType; /* DB_MEMO_FPT */
HB_BYTE bMemoExtType; /* DB_MEMOVER_FLEX */
HB_BYTE bDecimals; /* RDDI_DECIMALS */
HB_USHORT uiSetHeader; /* RDDI_SETHEADER */
HB_USHORT uiDirtyRead; /* HB_IDXREAD_CLEANMASK */
HB_USHORT uiIndexPageSize; /* 0 */
HB_ULONG ulMemoBlockSize; /* 0 */
HB_BOOL fSortRecNo;
HB_BOOL fMultiKey;
HB_BOOL fStruct;
HB_BOOL fStrictStruct;
HB_BOOL fMultiTag;
} DBFDATA, * LPDBFDATA;
typedef struct _HB_DBFFIELDBITS
{
HB_USHORT uiNullBit;
HB_USHORT uiLengthBit;
} HB_DBFFIELDBITS, * PHB_DBFFIELDBITS;
typedef struct _HB_DBFLOCKDATA
{
HB_FOFFSET offset;
HB_FOFFSET size;
HB_FOFFSET next;
HB_FOFFSET tolock;
int type;
int count;
} HB_DBFLOCKDATA, * PHB_DBFLOCKDATA;
/*
* DBF WORKAREA
* ------------
* The Workarea Structure of DBF RDD
*
*/
typedef struct _DBFAREA
{
AREA area;
/*
* 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.
*/
PHB_FILE pDataFile; /* Data file handle */
PHB_FILE pMemoFile; /* Memo file handle */
PHB_FILE pMemoTmpFile; /* Memo temporary file handle */
char * szDataFileName; /* Name of data file */
char * szMemoFileName; /* Name of memo file */
HB_USHORT uiHeaderLen; /* Size of header */
HB_USHORT uiRecordLen; /* Size of record */
HB_ULONG ulMemoBlockSize; /* Size of memo block */
HB_ULONG ulNewBlockSize; /* Size of new memo block */
HB_USHORT uiMemoVersion; /* MEMO file version */
HB_USHORT uiDirtyRead; /* Index dirty read bit filed */
HB_USHORT uiNullOffset; /* Offset to _NullFlags filed */
HB_USHORT uiNullCount; /* Number of null flags */
HB_BYTE bTableType; /* DBF type */
HB_BYTE bMemoType; /* MEMO type used in DBF memo fields */
HB_BYTE bLockType; /* Type of locking shemes */
HB_BYTE bCryptType; /* Type of used encryption */
HB_UINT uiSetHeader; /* DBF header updating modes DBI_SETHEADER */
DBFHEADER dbfHeader; /* DBF header buffer */
HB_USHORT * pFieldOffset; /* Pointer to field offset array */
PHB_DBFFIELDBITS pFieldBits; /* Pointer to extended DBF field info array */
HB_BYTE * pRecord; /* Buffer of record data */
HB_ULONG ulRecCount; /* Total records */
HB_ULONG ulRecNo; /* Current record */
HB_BOOL fAutoInc; /* WorkArea with auto increment fields */
HB_BOOL fHasMemo; /* WorkArea with Memo fields */
HB_BOOL fHasTags; /* WorkArea with MDX or CDX index */
HB_BOOL fModStamp; /* WorkArea with modification autoupdate fields */
HB_BOOL fDataFlush; /* data was written to DBF and not commited */
HB_BOOL fMemoFlush; /* data was written to MEMO and not commited */
HB_BOOL fShared; /* Shared file */
HB_BOOL fReadonly; /* Read only file */
HB_BOOL fTemporary; /* Temporary file */
HB_BOOL fValidBuffer; /* State of buffer */
HB_BOOL fPositioned; /* Positioned record */
HB_BOOL fRecordChanged; /* Record changed */
HB_BOOL fAppend; /* HB_TRUE if new record is added */
HB_BOOL fDeleted; /* HB_TRUE if record is deleted */
HB_BOOL fEncrypted; /* HB_TRUE if record is encrypted */
HB_BOOL fTableEncrypted; /* HB_TRUE if table is encrypted */
HB_BOOL fUpdateHeader; /* Update header of file */
HB_BOOL fFLocked; /* HB_TRUE if file is locked */
HB_BOOL fHeaderLocked; /* HB_TRUE if DBF header is locked */
HB_BOOL fPackMemo; /* Pack memo file in pack operation */
HB_BOOL fTransRec; /* HB_TRUE if records are transfered to this area, allow to change autoupdate fields and disable their initialization */
HB_BOOL fTrigger; /* Execute trigger function */
LPDBOPENINFO lpdbOpenInfo; /* Pointer to current dbOpenInfo structure in OPEN/CREATE methods */
LPDBRELINFO lpdbPendingRel; /* Pointer to parent rel struct */
HB_ULONG * pLocksPos; /* List of records locked */
HB_ULONG ulNumLocksPos; /* Number of records locked */
char * pCryptKey; /* Pointer to encryption key */
PHB_DYNS pTriggerSym; /* DynSym pointer to trigger function */
} DBFAREA;
typedef DBFAREA * LPDBFAREA;
#ifndef DBFAREAP
#define DBFAREAP LPDBFAREA
#endif
#define SUPERTABLE ( &dbfSuper )
extern HB_EXPORT HB_ULONG hb_dbfGetMemoBlock( DBFAREAP pArea, HB_USHORT uiIndex );
extern HB_EXPORT void hb_dbfPutMemoBlock( DBFAREAP pArea, HB_USHORT uiIndex,
HB_ULONG ulBlock );
extern HB_EXPORT HB_ERRCODE hb_dbfGetMemoData( DBFAREAP pArea, HB_USHORT uiIndex,
HB_ULONG * pulBlock, HB_ULONG * pulSize,
HB_ULONG * pulType );
extern HB_EXPORT HB_ERRCODE hb_dbfSetMemoData( DBFAREAP pArea, HB_USHORT uiIndex,
HB_ULONG ulBlock, HB_ULONG ulSize,
HB_ULONG ulType );
extern HB_EXPORT HB_ERRCODE hb_dbfGetEGcode( HB_ERRCODE errCode );
extern HB_EXPORT HB_BOOL hb_dbfLockIdxGetData( HB_BYTE bScheme, PHB_DBFLOCKDATA pLockData );
extern HB_EXPORT HB_BOOL hb_dbfLockIdxFile( DBFAREAP pArea, PHB_FILE pFile,
int iType, HB_BOOL fLateWrlck,
PHB_DBFLOCKDATA pLockData );
extern HB_EXPORT HB_BOOL hb_dbfLockIdxWrite( DBFAREAP pArea, PHB_FILE pFile,
PHB_DBFLOCKDATA pLockData );
extern HB_EXPORT void hb_dbfTranslateRec( DBFAREAP pArea, HB_BYTE * pBuffer, PHB_CODEPAGE cdp_src, PHB_CODEPAGE cdp_dest );
HB_EXTERN_END
#endif /* HB_RDDDBF_H_ */
Reference in New Issue View Git Blame Copy Permalink