/* * $Id$ */ /* * Harbour Project source code: * DBF RDD module * * Copyright 1999 Bruno Cantero * 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_RDDDBF_H_ #define HB_RDDDBF_H_ #include "hbapirdd.h" #if defined(HB_EXTERN_C) extern "C" { #endif /* DBF 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 /* DBF default file extensions */ #define DBF_TABLEEXT ".dbf" #define DBF_MEMOEXT ".dbt" /* DBF lock */ #define DBF_LOCKPOS 1000000000L /* DBT's */ #define DBT_BLOCKSIZE 512 /* * DBF WORKAREA * ------------ * The Workarea Structure of DBF RDD * */ typedef struct _DBFAREA { 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 */ } DBFAREA; typedef DBFAREA * LPDBFAREA; #ifndef DBFAREAP #define DBFAREAP LPDBFAREA #endif /* * -- DBF METHODS -- */ #define SUPERTABLE ( &dbfSuper ) extern ERRCODE hb_dbfBof( DBFAREAP pArea, BOOL * pBof ); extern ERRCODE hb_dbfEof( DBFAREAP pArea, BOOL * pEof ); extern ERRCODE hb_dbfFound( DBFAREAP pArea, BOOL * pFound ); extern ERRCODE hb_dbfGoBottom( DBFAREAP pArea ); extern ERRCODE hb_dbfGoTo( DBFAREAP pArea, ULONG ulRecNo ); extern ERRCODE hb_dbfGoToId( DBFAREAP pArea, PHB_ITEM pItem ); extern ERRCODE hb_dbfGoTop( DBFAREAP pArea ); #define hb_dbfSeek NULL extern ERRCODE hb_dbfSkip( DBFAREAP pArea, LONG lToSkip ); #define hb_dbfSkipFilter NULL extern ERRCODE hb_dbfSkipRaw( DBFAREAP pArea, LONG lToSkip ); extern ERRCODE hb_dbfAddField( DBFAREAP pArea, LPDBFIELDINFO pFieldInfo ); extern ERRCODE hb_dbfAppend( DBFAREAP pArea, BOOL bUnLockAll ); #define hb_dbfCreateFields NULL extern ERRCODE hb_dbfDeleteRec( DBFAREAP pArea ); extern ERRCODE hb_dbfDeleted( DBFAREAP pArea, BOOL * pDeleted ); #define hb_dbfFieldCount NULL #define hb_dbfFieldDisplay NULL #define hb_dbfFieldInfo NULL #define hb_dbfFieldName NULL extern ERRCODE hb_dbfFlush( DBFAREAP pArea ); #define hb_dbfGetRec NULL extern ERRCODE hb_dbfGetValue( DBFAREAP pArea, USHORT uiIndex, PHB_ITEM pItem ); extern ERRCODE hb_dbfGetVarLen( DBFAREAP pArea, USHORT uiIndex, ULONG * pLength ); extern ERRCODE hb_dbfGoCold( DBFAREAP pArea ); extern ERRCODE hb_dbfGoHot( DBFAREAP pArea ); extern ERRCODE hb_dbfPutRec( DBFAREAP pArea, BYTE * pBuffer ); extern ERRCODE hb_dbfPutValue( DBFAREAP pArea, USHORT uiIndex, PHB_ITEM pItem ); extern ERRCODE hb_dbfRecall( DBFAREAP pArea ); extern ERRCODE hb_dbfRecCount( DBFAREAP pArea, ULONG * pRecCount ); #define hb_dbfRecInfo NULL extern ERRCODE hb_dbfRecNo( DBFAREAP pArea, PHB_ITEM pRecNo ); extern ERRCODE hb_dbfSetFieldExtent( DBFAREAP pArea, USHORT uiFieldExtent ); #define hb_dbfAlias NULL extern ERRCODE hb_dbfClose( DBFAREAP pArea ); extern ERRCODE hb_dbfCreate( DBFAREAP pArea, LPDBOPENINFO pCreateInfo ); extern ERRCODE hb_dbfInfo( DBFAREAP pArea, USHORT uiIndex, PHB_ITEM pItem ); extern ERRCODE hb_dbfNewArea( DBFAREAP pArea ); extern ERRCODE hb_dbfOpen( DBFAREAP pArea, LPDBOPENINFO pOpenInfo ); #define hb_dbfRelease NULL extern ERRCODE hb_dbfStructSize( DBFAREAP pArea, USHORT * uiSize ); extern ERRCODE hb_dbfSysName( DBFAREAP pArea, BYTE * pBuffer ); #define hb_dbfEval NULL extern ERRCODE hb_dbfPack( DBFAREAP pArea ); #define hb_dbfPackRec NULL extern ERRCODE hb_dbfSort( DBFAREAP pArea, LPDBSORTINFO pSortInfo ); extern ERRCODE hb_dbfTrans( DBFAREAP pArea, LPDBTRANSINFO pTransInfo ); extern ERRCODE hb_dbfTransRec( DBFAREAP pArea, LPDBTRANSINFO pTransInfo ); extern ERRCODE hb_dbfZap( DBFAREAP pArea ); extern ERRCODE hb_dbfChildEnd( DBFAREAP pArea, LPDBRELINFO pRelInfo ); extern ERRCODE hb_dbfChildStart( DBFAREAP pArea, LPDBRELINFO pRelInfo ); extern ERRCODE hb_dbfChildSync( DBFAREAP pArea, LPDBRELINFO pRelInfo ); #define hb_dbfSyncChildren NULL #define hb_dbfClearRel NULL extern ERRCODE hb_dbfForceRel( DBFAREAP pArea ); #define hb_dbfRelArea NULL #define hb_dbfRelEval NULL #define hb_dbfRelText NULL #define hb_dbfSetRel NULL #define hb_dbfOrderListAdd NULL #define hb_dbfOrderListClear NULL #define hb_dbfOrderListDelete NULL #define hb_dbfOrderListFocus NULL #define hb_dbfOrderListRebuild NULL #define hb_dbfOrderCondition NULL #define hb_dbfOrderCreate NULL #define hb_dbfOrderDestroy NULL #define hb_dbfOrderInfo NULL #define hb_dbfClearFilter NULL #define hb_dbfClearLocate NULL #define hb_dbfClearScope NULL #define hb_dbfCountScope NULL #define hb_dbfFilterText NULL #define hb_dbfScopeInfo NULL extern ERRCODE hb_dbfSetFilter( DBFAREAP pArea, LPDBFILTERINFO pFilterInfo ); #define hb_dbfSetLocate NULL #define hb_dbfSetScope NULL #define hb_dbfSkipScope NULL #define hb_dbfCompile NULL #define hb_dbfError NULL #define hb_dbfEvalBlock NULL #define hb_dbfRawLock NULL extern ERRCODE hb_dbfLock( DBFAREAP pArea, LPDBLOCKINFO pLockInfo ); extern ERRCODE hb_dbfUnLock( DBFAREAP pArea, ULONG ulRecNo ); #define hb_dbfCloseMemFile NULL extern ERRCODE hb_dbfCreateMemFile( DBFAREAP pArea, LPDBOPENINFO pCreateInfo ); #define hb_dbfGetValueFile NULL extern ERRCODE hb_dbfOpenMemFile( DBFAREAP pArea, LPDBOPENINFO pOpenInfo ); #define hb_dbfPutValueFile NULL extern ERRCODE hb_dbfReadDBHeader( DBFAREAP pArea ); extern ERRCODE hb_dbfWriteDBHeader( DBFAREAP pArea ); #define hb_dbfExit NULL extern ERRCODE hb_dbfDrop( PHB_ITEM pItemTable ); extern BOOL hb_dbfExists( PHB_ITEM pItemTable, PHB_ITEM pItemIndex ); #define hb_dbfWhoCares NULL #if defined(HB_EXTERN_C) } #endif #endif /* HB_RDDDBF_H_ */