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98255c8aa0f91a5f10cd9ec194d8a0bede1804fa
harbour-core/harbour/source/rdd/workarea.c
Przemyslaw Czerpak 437b04a8ea 2006-11-08 12:55 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/bin/hb-func.sh
    + added linker parametrs to hbcc

  * harbour/include/hbapi.h
    + added hb_retclenAdoptRaw()

  * harbour/include/hbapifs.h
  * harbour/source/common/hbfsapi.c
    * changed first parameters of hb_fsAddSearchPath() to const char *

  * harbour/include/hbclass.ch
    * update for new PP. I think that now we can try to create final
      version of our OOP rules.

  * harbour/include/hbdefs.h
    + added UCHAR and SCHAR typedefs

  * harbour/include/hbrddcdx.h
    * indenting

  * harbour/source/rdd/workarea.c
    ! fixed minor typo

  * harbour/source/common/hbdate.c
  * harbour/source/rtl/dates.c
    * moved hb_dateToday() and hb_dateTimeStr() from RTL to COMMON library

  - harbour/include/hbpp.h
  - harbour/source/pp/ppcomp.c
  - harbour/source/pp/ppcore.c
  - harbour/source/pp/pplib.c
  - harbour/source/pp/pptable.c
  - harbour/source/pp/pragma.c
  * harbour/utils/hbpp/Makefile
  * harbour/utils/hbpp/hbpp.c
  + harbour/utils/hbpp/hbpp.h
  + harbour/utils/hbpp/ppcomp.c
  + harbour/utils/hbpp/ppcore.c
  + harbour/utils/hbpp/pplib.c
  + harbour/utils/hbpp/pptable.c
  + harbour/utils/hbpp/pragma.c
    * moved all PP code to harbour/utils/hbpp
      It's interesting and working preprocessor and the code can be
      usable for some other things so I do not want to remove it.
      Probablly we should move it to contrib/hbpptext

  * harbour/include/hbcomp.h
  * harbour/include/hberrors.h
  * harbour/include/hbsetup.ch
  + harbour/include/hbpp.h
  + harbour/include/hbstdgen.ch
  * harbour/source/common/hbstr.c
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/cmdcheck.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.l
  * harbour/source/compiler/hbgenerr.c
  + harbour/source/compiler/ppcomp.c
  * harbour/source/pp/Makefile
  + harbour/source/pp/ppcore.c
  + harbour/source/pp/pplib.c
  + harbour/source/pp/ppgen.c
    + New PP code written from scratch. It works in similar way to
      Clipper PP even the error codes are replicated. The code is MT
      safe does not have any limitation on size of preprocessed code,
      line, etc. It's also Clipper compatible lexer. It means that
      we do not longer need FLEX or SIMPLEX which can be replaced
      by new PP after some small modifications. Anyhow I haven't
      decided to make it myself. I would like to agree with with the
      rest of developers. I will be very happy if such modifications
      will be done by someone else, Ryszard?
      Meanwhile I current PP join on output the line tokens and give
      the string line to FLEX/SIMPLEX. It does not have any sense and
      all FLEX/SIMPLEX limitations are still existing. Ryszard, even
      if we keep it then I hope you can remove at least FLEX line buffer
      and use the one returned from PP.
      Because string tokens in parsed line are converted to text which is
      later once again decoded to tokens by FLEX I had to introduce new
      string format which supports embedded string delimiters. I chose
      modified version of xHarbour extension with escaped strings e"<sting>"
      so now FLEX understand such strings and decode them like C escaped
      strings. It means that you can use them also in the .prg code f.e.:
         outstd( e"Hello\n\rWorld" )
      The new PP is also noticeable faster. You should see the difference
      compiling long files. The build in PP rules are generated automatically
      by ppgen program created from source/pp/ppgen.c
      I had to add to GNU source/pp/Makefile these two lines:
         pptable.c : ppgen$(EXE_EXT)
         	./ppgen$(EXE_EXT) $(TOP)$(ROOT)include/hbstdgen.ch -opptable.c -q
      Sth like that will have to be done also in non GNU make system.
      Now Harbour can be compiled only using GNU make.
      Marek can you update non GNU make files? I would like to leave this
      modification to you or other developers who can test it.
      It was quite big modification and I do not believe that I haven't
      make any mistakes but I hope that in few weeks I'll fix any reported
      bugs and it will resolve any PP problems.
      TODO:
         * error messages
           create one common list of errors and warnings and keep it
           in common library. PP and compiler can still generate different
           errors with the same number. It can be confusing for the users
           and hard to document and add i18n translations.
           If possible we should also try to keep Clipper error numbers.
           In new PP code I added Clipper error numbers but I cannot use
           them until compiler code is not updated.
           We should aslo remove the ctype passed to error functions and
           hack with first character in warning messages and use only
           error number. The codes from 1000 to 1999 should be warnings
           where range 1000:1099 is activated by -w, 1100:1199 by -w1,
           1200:1299 by -w2, etc. 2000:2999 are errors and 3000:3999
           fatal errors. All compiler functions which generate an error
           should expect that error function will not stop the compiler
           but return and cleanly finished their job. It's necessary for
           MT support in compiler and making compiler part of some other
           programs which may still work and compile different source code.
         * FLEX/SIMPLEX
           remove them at all and add some final pass to PP to create
           more precise tokens for grammar parser or at least add better
           integration to remove some redundant code and existing limits.
         * hb_inLine() support - it's broken in new PP but as I can see
           it was never working correctly. I can add a hack to PP to support
           hb_inLine() but I'm not sure it's worth to do. Maybe in few days.

  + harbour/include/std.ch
    + added new std.ch. It was created without using Clipper's std.ch.
      It's quite possible that some rules are wrong and should be fixed
      so please help. Anyhow I created a set of programs based on new PP
      code generating all possible combinations of different commands I
      collected from different source code, documentation and match patterns
      of rules I was adding to new std.ch and then I was comparing .ppo
      files generated by Clipper and Harbour so I do not expect any bigger
      problems then some minor typos. I had to introduce some modifications
      in spacing as workaround for FLEX/SIMPLEX which cannot properly decode
      text preprocessed by Clipper after stringify.

  * harbour/utils/hbpptest/pretest.prg
    * updated for new PP
      It reports 16 wrong translations but some of them are valid
      and some others are caused by escaped string e"..." (one of hack
      for FLEX/SIMPLEX support)
      I also had to remove all spaces in comparison the results
      because they were not Clipper ocmpatible at all. Ryszard please
      look at it.
2006-11-08 12:06:17 +00:00

1685 lines
44 KiB
C
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/*
* $Id$
*/
/*
* Harbour Project source code:
* Default RDD module
*
* Copyright 1999 Bruno Cantero <bruno@issnet.net>
* 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, 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.
*
*
* The following functions are added by
* Horacio Roldan <harbour_ar@yahoo.com.ar>
* hb_waCloseAux()
*
*/
#include <ctype.h>
#include "hbapi.h"
#include "hbapirdd.h"
#include "hbinit.h"
#include "hbvm.h"
#include "hbapiitm.h"
#include "hbapierr.h"
#include "hbset.h"
#include "hbrddwrk.h"
/*
* -- METHODS --
*/
/*
* Determine logical beginning of file.
*/
ERRCODE hb_waBof( AREAP pArea, BOOL * pBof )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waBof(%p, %p)", pArea, pBof));
* pBof = pArea->fBof;
return SUCCESS;
}
/*
* Determine logical end of file.
*/
ERRCODE hb_waEof( AREAP pArea, BOOL * pEof )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waEof(%p, %p)", pArea, pEof));
* pEof = pArea->fEof;
return SUCCESS;
}
/*
* Determine outcome of the last search operation.
*/
ERRCODE hb_waFound( AREAP pArea, BOOL * pFound )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waFound(%p, %p)", pArea, pFound));
* pFound = pArea->fFound;
return SUCCESS;
}
/*
* Reposition cursor relative to current position.
*/
ERRCODE hb_waSkip( AREAP pArea, LONG lToSkip )
{
LONG lSkip;
HB_TRACE(HB_TR_DEBUG, ("hb_waSkip(%p, %ld)", pArea, lToSkip));
/* Flush record and exit */
if( lToSkip == 0 )
return SELF_SKIPRAW( pArea, 0 );
pArea->fTop = pArea->fBottom = FALSE;
if( lToSkip > 0 )
lSkip = 1;
else
{
lSkip = -1;
lToSkip *= -1;
}
while( --lToSkip >= 0 )
{
if( SELF_SKIPRAW( pArea, lSkip ) != SUCCESS )
return FAILURE;
if( SELF_SKIPFILTER( pArea, lSkip ) != SUCCESS )
return FAILURE;
if( pArea->fBof || pArea->fEof )
break;
}
/* Update Bof and Eof flags */
if( lSkip < 0 )
pArea->fEof = FALSE;
else /* ( lSkip > 0 ) */
pArea->fBof = FALSE;
return SUCCESS;
}
/*
* Reposition cursor respecting any filter setting.
*/
ERRCODE hb_waSkipFilter( AREAP pArea, LONG lUpDown )
{
BOOL fBottom, fDeleted;
PHB_ITEM pResult;
ERRCODE uiError;
HB_TRACE(HB_TR_DEBUG, ("hb_waSkipFilter(%p, %ld)", pArea, lUpDown));
if( !hb_set.HB_SET_DELETED && pArea->dbfi.itmCobExpr == NULL )
return SUCCESS;
/* Since lToSkip is passed to SkipRaw, it should never request more than
a single skip.
The implied purpose of hb_waSkipFilter is to get off of a "bad" record
after a skip was performed, NOT to skip lToSkip filtered records.
*/
lUpDown = ( lUpDown < 0 ? -1 : 1 );
/* remember if we are here after SLEF_GOTOP() */
fBottom = pArea->fBottom;
while( !pArea->fBof && !pArea->fEof )
{
/* SET DELETED */
if( hb_set.HB_SET_DELETED )
{
if( SELF_DELETED( pArea, &fDeleted ) != SUCCESS )
return FAILURE;
if( fDeleted )
{
if( SELF_SKIPRAW( pArea, lUpDown ) != SUCCESS )
return FAILURE;
continue;
}
}
/* SET FILTER TO */
if( pArea->dbfi.itmCobExpr )
{
pResult = hb_vmEvalBlock( pArea->dbfi.itmCobExpr );
if( HB_IS_LOGICAL( pResult ) && !hb_itemGetL( pResult ) )
{
if( SELF_SKIPRAW( pArea, lUpDown ) != SUCCESS )
return FAILURE;
continue;
}
}
break;
}
/*
* The only one situation when we should repos is backward skipping
* if we are at BOTTOM position (it's SKIPFILTER called from GOBOTTOM)
* then GOEOF() if not then GOTOP()
*/
if( pArea->fBof && lUpDown < 0 )
{
if( fBottom )
{
/* GOTO EOF (phantom) record -
this is the only one place where GOTO is used by xHarbour
directly and RDD which does not operate on numbers should
serve this method only as SELF_GOEOF() synonym. If it's a
problem then we can remove this if and always use SELF_GOTOP()
but it also means second table scan if all records filtered
are out of filter so I do not want to do that. I will prefer
explicit add SELF_GOEOF() method
*/
uiError = SELF_GOTO( pArea, 0 );
}
else
{
uiError = SELF_GOTOP( pArea );
pArea->fBof = TRUE;
}
}
else
{
uiError = SUCCESS;
}
return uiError;
}
/*
* Add a field to the WorkArea.
*/
ERRCODE hb_waAddField( AREAP pArea, LPDBFIELDINFO pFieldInfo )
{
LPFIELD pField;
char szFieldName[ HB_SYMBOL_NAME_LEN + 1 ], *szPtr;
HB_TRACE(HB_TR_DEBUG, ("hb_waAddField(%p, %p)", pArea, pFieldInfo));
/* Validate the name of field */
szPtr = ( char * ) pFieldInfo->atomName;
while( HB_ISSPACE( *szPtr ) )
{
++szPtr;
}
hb_strncpyUpperTrim( szFieldName, szPtr, HB_SYMBOL_NAME_LEN );
if( strlen( szFieldName ) == 0 )
return FAILURE;
pField = pArea->lpFields + pArea->uiFieldCount;
if( pArea->uiFieldCount > 0 )
( ( LPFIELD ) ( pField - 1 ) )->lpfNext = pField;
pField->sym = ( void * ) hb_dynsymGetCase( szFieldName );
pField->uiType = pFieldInfo->uiType;
pField->uiTypeExtended = pFieldInfo->uiTypeExtended;
pField->uiLen = pFieldInfo->uiLen;
pField->uiDec = pFieldInfo->uiDec;
pField->uiArea = pArea->uiArea;
pArea->uiFieldCount ++;
return SUCCESS;
}
/*
* Add all fields defined in an array to the WorkArea.
*/
ERRCODE hb_waCreateFields( AREAP pArea, PHB_ITEM pStruct )
{
USHORT uiItems, uiCount, uiLen, uiDec;
DBFIELDINFO pFieldInfo;
PHB_ITEM pFieldDesc;
int iData;
HB_TRACE(HB_TR_DEBUG, ("hb_waCreateFields(%p, %p)", pArea, pStruct));
uiItems = ( USHORT ) hb_arrayLen( pStruct );
if( SELF_SETFIELDEXTENT( pArea, uiItems ) != SUCCESS )
return FAILURE;
for( uiCount = 0; uiCount < uiItems; uiCount++ )
{
pFieldInfo.uiTypeExtended = 0;
pFieldDesc = hb_arrayGetItemPtr( pStruct, uiCount + 1 );
pFieldInfo.atomName = ( BYTE * ) hb_arrayGetCPtr( pFieldDesc, 1 );
iData = hb_arrayGetNI( pFieldDesc, 3 );
if( iData < 0 )
iData = 0;
uiLen = pFieldInfo.uiLen = ( USHORT ) iData;
iData = hb_arrayGetNI( pFieldDesc, 4 );
if( iData < 0 )
iData = 0;
uiDec = ( USHORT ) iData;
pFieldInfo.uiDec = 0;
iData = toupper( hb_arrayGetCPtr( pFieldDesc, 2 )[ 0 ] );
switch( iData )
{
case 'C':
pFieldInfo.uiType = HB_IT_STRING;
pFieldInfo.uiLen = uiLen;
/* Too many people reported the behavior with code below as a
Clipper compatibility bug so I commented this code. Druzus.
#ifdef HB_C52_STRICT
pFieldInfo.uiLen = uiLen;
#else
pFieldInfo.uiLen = uiLen + uiDec * 256;
#endif
*/
break;
case 'L':
pFieldInfo.uiType = HB_IT_LOGICAL;
pFieldInfo.uiLen = 1;
break;
case 'M':
pFieldInfo.uiType = HB_IT_MEMO;
pFieldInfo.uiLen = ( uiLen == 4 ) ? 4 : 10;
break;
case 'V':
pFieldInfo.uiType = HB_IT_ANY;
pFieldInfo.uiLen = ( uiLen < 3 || uiLen == 5 ) ? 6 : uiLen;
break;
case 'D':
pFieldInfo.uiType = HB_IT_DATE;
pFieldInfo.uiLen = ( uiLen == 3 || uiLen == 4 ) ? uiLen : 8;
break;
case 'I':
pFieldInfo.uiType = HB_IT_INTEGER;
pFieldInfo.uiLen = ( ( uiLen > 0 && uiLen <= 4 ) || uiLen != 8 ) ? uiLen : 4;
break;
case '2':
case '4':
pFieldInfo.uiType = HB_IT_INTEGER;
pFieldInfo.uiLen = iData - '0';
break;
case 'B':
case '8':
pFieldInfo.uiType = HB_IT_DOUBLE;
pFieldInfo.uiLen = 8;
pFieldInfo.uiDec = uiDec;
break;
case 'N':
case 'F':
pFieldInfo.uiType = HB_IT_LONG;
/* DBASE documentation defines maximum numeric field size as 20
* but Clipper alows to create longer fileds so I remove this
* limit, Druzus
*/
/*
if( uiLen > 20 )
*/
if( uiLen > 255 )
return FAILURE;
else
pFieldInfo.uiDec = uiDec;
break;
default:
return FAILURE;
}
/* Add field */
if( SELF_ADDFIELD( pArea, &pFieldInfo ) != SUCCESS )
return FAILURE;
}
return SUCCESS;
}
/*
* Determine the number of fields in the WorkArea.
*/
ERRCODE hb_waFieldCount( AREAP pArea, USHORT * uiFields )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waFieldCount(%p, %p)", pArea, uiFields));
* uiFields = pArea->uiFieldCount;
return SUCCESS;
}
/*
* Retrieve information about a field.
*/
ERRCODE hb_waFieldInfo( AREAP pArea, USHORT uiIndex, USHORT uiType, PHB_ITEM pItem )
{
LPFIELD pField;
HB_TRACE(HB_TR_DEBUG, ("hb_waFieldInfo(%p, %hu, %hu, %p)", pArea, uiIndex, uiType, pItem));
if( uiIndex > pArea->uiFieldCount )
return FAILURE;
pField = pArea->lpFields + uiIndex - 1;
switch( uiType )
{
case DBS_NAME:
hb_itemPutC( pItem, hb_dynsymName( ( PHB_DYNS ) pField->sym ) );
break;
case DBS_TYPE:
switch( pField->uiType )
{
case HB_IT_STRING:
hb_itemPutC( pItem, "C" );
break;
case HB_IT_LOGICAL:
hb_itemPutC( pItem, "L" );
break;
case HB_IT_MEMO:
hb_itemPutC( pItem, "M" );
break;
case HB_IT_ANY:
hb_itemPutC( pItem, "V" );
break;
case HB_IT_DATE:
hb_itemPutC( pItem, "D" );
break;
case HB_IT_LONG:
hb_itemPutC( pItem, "N" );
break;
case HB_IT_INTEGER:
hb_itemPutC( pItem, "I" );
break;
case HB_IT_DOUBLE:
hb_itemPutC( pItem, "B" );
break;
default:
hb_itemPutC( pItem, "U" );
break;
}
break;
case DBS_LEN:
hb_itemPutNL( pItem, pField->uiLen );
break;
case DBS_DEC:
hb_itemPutNL( pItem, pField->uiDec );
break;
default:
return FAILURE;
}
return SUCCESS;
}
/*
* Determine the name associated with a field number.
*/
ERRCODE hb_waFieldName( AREAP pArea, USHORT uiIndex, void * szName )
{
LPFIELD pField;
HB_TRACE(HB_TR_DEBUG, ("hb_waFieldName(%p, %hu, %p)", pArea, uiIndex, szName));
if( uiIndex > pArea->uiFieldExtent )
return FAILURE;
pField = pArea->lpFields + uiIndex - 1;
hb_strncpy( ( char * ) szName, hb_dynsymName( ( PHB_DYNS ) pField->sym ),
pArea->uiMaxFieldNameLength );
return SUCCESS;
}
/*
* Establish the extent of the array of fields for a WorkArea.
*/
ERRCODE hb_waSetFieldExtent( AREAP pArea, USHORT uiFieldExtent )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waSetFieldExtent(%p, %hu)", pArea, uiFieldExtent));
pArea->uiFieldExtent = uiFieldExtent;
/* Alloc field array */
if( uiFieldExtent )
{
pArea->lpFields = ( LPFIELD ) hb_xgrab( uiFieldExtent * sizeof( FIELD ) );
memset( pArea->lpFields, 0, uiFieldExtent * sizeof( FIELD ) );
}
return SUCCESS;
}
/*
* Obtain the alias of the WorkArea.
*/
ERRCODE hb_waAlias( AREAP pArea, BYTE * szAlias )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waAlias(%p, %p)", pArea, szAlias));
hb_strncpy( ( char * ) szAlias,
pArea->atomAlias && hb_dynsymAreaHandle( ( PHB_DYNS ) pArea->atomAlias )
? hb_dynsymName( ( PHB_DYNS ) pArea->atomAlias ) : "",
HARBOUR_MAX_RDD_ALIAS_LENGTH );
return SUCCESS;
}
/*
* Close the table in the WorkArea - helper function
*/
static short hb_waCloseAux( AREAP pArea, int nChildArea )
{
USHORT uiPrevArea, uiArea;
LPDBRELINFO lpdbRelation, lpdbRelPrev, lpdbRelTmp;
uiArea = ( USHORT ) nChildArea;
if( pArea->lpdbRelations )
{
uiPrevArea = hb_rddGetCurrentWorkAreaNumber();
lpdbRelation = pArea->lpdbRelations;
lpdbRelPrev = NULL;
while( lpdbRelation )
{
if( lpdbRelation->lpaChild->uiArea == uiArea )
{
/* Clear this relation */
hb_rddSelectWorkAreaNumber( lpdbRelation->lpaChild->uiArea );
SELF_CHILDEND( lpdbRelation->lpaChild, lpdbRelation );
hb_rddSelectWorkAreaNumber( uiPrevArea );
if( lpdbRelation->itmCobExpr )
{
hb_itemRelease( lpdbRelation->itmCobExpr );
}
if( lpdbRelation->abKey )
hb_itemRelease( lpdbRelation->abKey );
lpdbRelTmp = lpdbRelation;
if( lpdbRelPrev )
lpdbRelPrev->lpdbriNext = lpdbRelation->lpdbriNext;
else
pArea->lpdbRelations = lpdbRelation->lpdbriNext;
lpdbRelation = lpdbRelation->lpdbriNext;
hb_xfree( lpdbRelTmp );
}
else
{
lpdbRelPrev = lpdbRelation;
lpdbRelation = lpdbRelation->lpdbriNext;
}
}
}
return 1;
}
/*
* Close the table in the WorkArea.
*/
ERRCODE hb_waClose( AREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waClose(%p)", pArea));
/* Clear items */
SELF_CLEARFILTER( pArea );
SELF_CLEARREL( pArea );
SELF_CLEARLOCATE( pArea );
if( pArea->uiParents > 0 )
{
/* Clear relations that has this area as a child */
hb_rddIterateWorkAreas ( hb_waCloseAux, pArea->uiArea );
}
if( pArea->atomAlias )
hb_dynsymSetAreaHandle( ( PHB_DYNS ) pArea->atomAlias, 0 );
return SUCCESS;
}
/*
* Retrieve information about the current driver.
*/
ERRCODE hb_waInfo( AREAP pArea, USHORT uiIndex, PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waInfo(%p, %hu, %p)", pArea, uiIndex, pItem));
switch( uiIndex )
{
case DBI_ISDBF:
case DBI_CANPUTREC:
case DBI_ISFLOCK:
case DBI_SHARED:
hb_itemPutL( pItem, FALSE );
break;
/*
* IMHO better to return FAILURE to notice that it's not supported
*/
case DBI_GETDELIMITER:
case DBI_SETDELIMITER:
case DBI_SEPARATOR:
hb_itemPutC( pItem, "" );
return FAILURE;
case DBI_GETHEADERSIZE:
case DBI_GETRECSIZE:
case DBI_LOCKCOUNT:
hb_itemPutNI( pItem, 0 );
break;
case DBI_LASTUPDATE:
hb_itemPutDL( pItem, 0 );
break;
case DBI_GETLOCKARRAY:
hb_arrayNew( pItem, 0 );
break;
case DBI_CHILDCOUNT:
{
LPDBRELINFO lpdbRelations = pArea->lpdbRelations;
USHORT uiCount = 0;
while( lpdbRelations )
{
uiCount++;
lpdbRelations = lpdbRelations->lpdbriNext;
}
hb_itemPutNI( pItem, uiCount );
break;
}
case DBI_BOF:
hb_itemPutL( pItem, pArea->fBof );
break;
case DBI_EOF:
hb_itemPutL( pItem, pArea->fEof );
break;
case DBI_DBFILTER:
if( pArea->dbfi.abFilterText )
hb_itemCopy( pItem, pArea->dbfi.abFilterText );
else
hb_itemPutC( pItem, "" );
break;
case DBI_FOUND:
hb_itemPutL( pItem, pArea->fFound );
break;
case DBI_FCOUNT:
hb_itemPutNI( pItem, pArea->uiFieldCount );
break;
case DBI_ALIAS:
{
char szAlias[ HARBOUR_MAX_RDD_ALIAS_LENGTH + 1 ];
if( SELF_ALIAS( pArea, ( BYTE * ) szAlias ) != SUCCESS )
{
return FAILURE;
}
hb_itemPutC( pItem, szAlias );
break;
}
case DBI_TABLEEXT:
hb_itemClear( pItem );
return SELF_RDDINFO( SELF_RDDNODE( pArea ), RDDI_TABLEEXT, 0, pItem );
case DBI_SCOPEDRELATION:
{
int iRelNo = hb_itemGetNI( pItem );
BOOL fScoped = FALSE;
if( iRelNo > 0 )
{
LPDBRELINFO lpdbRelations = pArea->lpdbRelations;
while( lpdbRelations )
{
if( --iRelNo == 0 )
{
fScoped = lpdbRelations->isScoped;
break;
}
lpdbRelations = lpdbRelations->lpdbriNext;
}
}
hb_itemPutL( pItem, fScoped );
}
case DBI_RM_SUPPORTED:
hb_itemPutL( pItem, FALSE );
break;
case DBI_DB_VERSION:
hb_itemPutC( pItem, "" );
break;
case DBI_RDD_VERSION:
hb_itemPutC( pItem, "" );
break;
default:
return FAILURE;
}
return SUCCESS;
}
/*
* Retrieve information about the current order that SELF could not.
* Called by SELF_ORDINFO if uiIndex is not supported.
*/
#ifdef HB_COMPAT_C53
ERRCODE hb_waOrderInfo( AREAP pArea, USHORT index, LPDBORDERINFO param )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waOrderInfo(%p, %hu, %p)", pArea, index, param));
HB_SYMBOL_UNUSED( pArea );
HB_SYMBOL_UNUSED( index );
HB_SYMBOL_UNUSED( param );
hb_errRT_DBCMD( EG_ARG, EDBCMD_BADPARAMETER, NULL, "DBORDERINFO" );
return FAILURE;
}
#endif
/*
* Clear the WorkArea for use.
*/
ERRCODE hb_waNewArea( AREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waNewArea(%p)", pArea));
pArea->valResult = hb_itemNew( NULL );
pArea->lpdbRelations = NULL;
pArea->uiParents = 0;
pArea->uiMaxFieldNameLength = 10;
return SUCCESS;
}
/*
* Open a data store in the WorkArea.
* Like in Clipper it's also mapped as Create() method at WA level
*/
ERRCODE hb_waOpen( AREAP pArea, LPDBOPENINFO pInfo )
{
if( !pArea->atomAlias && pInfo->atomAlias && pInfo->atomAlias[ 0 ] )
{
pArea->atomAlias = hb_rddAllocWorkAreaAlias( ( char * ) pInfo->atomAlias,
( int ) pInfo->uiArea );
if( ! pArea->atomAlias )
{
SELF_CLOSE( ( AREAP ) pArea );
return FAILURE;
}
}
return SUCCESS;
}
ERRCODE hb_waOrderCondition( AREAP pArea, LPDBORDERCONDINFO param )
{
if( pArea->lpdbOrdCondInfo )
{
if( pArea->lpdbOrdCondInfo->abFor )
hb_xfree( pArea->lpdbOrdCondInfo->abFor );
if( pArea->lpdbOrdCondInfo->abWhile )
hb_xfree( pArea->lpdbOrdCondInfo->abWhile );
if( pArea->lpdbOrdCondInfo->itmCobFor )
{
hb_itemRelease( pArea->lpdbOrdCondInfo->itmCobFor );
}
if( pArea->lpdbOrdCondInfo->itmCobWhile )
{
hb_itemRelease( pArea->lpdbOrdCondInfo->itmCobWhile );
}
if( pArea->lpdbOrdCondInfo->itmCobEval )
{
hb_itemRelease( pArea->lpdbOrdCondInfo->itmCobEval );
}
if( pArea->lpdbOrdCondInfo->itmStartRecID )
{
hb_itemRelease( pArea->lpdbOrdCondInfo->itmStartRecID );
}
if( pArea->lpdbOrdCondInfo->itmRecID )
{
hb_itemRelease( pArea->lpdbOrdCondInfo->itmRecID );
}
hb_xfree( pArea->lpdbOrdCondInfo );
}
pArea->lpdbOrdCondInfo = param;
return SUCCESS;
}
/*
* Release all references to a WorkArea.
*/
ERRCODE hb_waRelease( AREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waRelease(%p)", pArea));
/* Free all allocated pointers */
if( pArea->lpFields )
hb_xfree( pArea->lpFields );
if( pArea->valResult )
hb_itemRelease( pArea->valResult );
if( pArea->lpdbOrdCondInfo )
/* intentionally direct call not a method */
hb_waOrderCondition( pArea,NULL );
hb_xfree( pArea );
return SUCCESS;
}
/*
* Retrieve the size of the WorkArea structure.
*/
ERRCODE hb_waStructSize( AREAP pArea, USHORT * uiSize )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waStrucSize(%p, %p)", pArea, uiSize));
HB_SYMBOL_UNUSED( pArea );
* uiSize = sizeof( AREA );
return SUCCESS;
}
/*
* Obtain the name of replaceable database driver (RDD) subsystem.
*/
ERRCODE hb_waSysName( AREAP pArea, BYTE * pBuffer )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waSysName(%p, %p)", pArea, pBuffer));
hb_strncpy( ( char * ) pBuffer, SELF_RDDNODE( pArea )->szName,
HARBOUR_MAX_RDD_DRIVERNAME_LENGTH );
return SUCCESS;
}
/*
* Evaluate code block for each record in WorkArea.
*/
ERRCODE hb_waEval( AREAP pArea, LPDBEVALINFO pEvalInfo )
{
LONG lNext = 1;
BOOL fEof;
HB_TRACE(HB_TR_DEBUG, ("hb_waEval(%p, %p)", pArea, pEvalInfo));
if( pEvalInfo->dbsci.itmRecID )
{
if( SELF_GOTOID( pArea, pEvalInfo->dbsci.itmRecID ) != SUCCESS )
return FAILURE;
}
else if( pEvalInfo->dbsci.lNext )
{
lNext = hb_itemGetNL( pEvalInfo->dbsci.lNext );
}
else if( !pEvalInfo->dbsci.itmCobWhile &&
!hb_itemGetL( pEvalInfo->dbsci.fRest ) )
{
if( SELF_GOTOP( pArea ) != SUCCESS )
return FAILURE;
}
/* TODO: use SKIPSCOPE() method and fRest parameter */
if( !pEvalInfo->dbsci.lNext || lNext > 0 )
{
while( TRUE )
{
if( SELF_EOF( pArea, &fEof ) != SUCCESS )
return FAILURE;
if( fEof )
break;
if( pEvalInfo->dbsci.itmCobWhile &&
! hb_itemGetL( hb_vmEvalBlock( pEvalInfo->dbsci.itmCobWhile ) ) )
break;
if( ! pEvalInfo->dbsci.itmCobFor ||
hb_itemGetL( hb_vmEvalBlock( pEvalInfo->dbsci.itmCobFor ) ) )
hb_vmEvalBlock( pEvalInfo->itmBlock );
if( pEvalInfo->dbsci.itmRecID || ( pEvalInfo->dbsci.lNext && --lNext < 1 ) )
break;
if( SELF_SKIP( pArea, 1 ) != SUCCESS )
return FAILURE;
}
}
return SUCCESS;
}
/*
* Locate a record which pass given condition
*/
ERRCODE hb_waLocate( AREAP pArea, BOOL fContinue )
{
LONG lNext = 1;
BOOL fEof;
HB_TRACE(HB_TR_DEBUG, ("hb_waLocate(%p, %d)", pArea, fContinue));
if( fContinue )
{
if( ! pArea->dbsi.itmCobFor )
return SUCCESS;
if( SELF_SKIP( pArea, 1 ) != SUCCESS )
return FAILURE;
}
else if( pArea->dbsi.itmRecID )
{
if( SELF_GOTOID( pArea, pArea->dbsi.itmRecID ) != SUCCESS )
return FAILURE;
}
else if( pArea->dbsi.lNext )
{
lNext = hb_itemGetNL( pArea->dbsi.lNext );
}
else if( !pArea->dbsi.itmCobWhile &&
!hb_itemGetL( pArea->dbsi.fRest ) )
{
if( SELF_GOTOP( pArea ) != SUCCESS )
return FAILURE;
}
pArea->fFound = FALSE;
/* TODO: use SKIPSCOPE() method and fRest parameter */
if( !pArea->dbsi.lNext || lNext > 0 )
{
while( TRUE )
{
if( SELF_EOF( pArea, &fEof ) != SUCCESS )
return FAILURE;
if( fEof )
break;
if( !fContinue && pArea->dbsi.itmCobWhile &&
! hb_itemGetL( hb_vmEvalBlock( pArea->dbsi.itmCobWhile ) ) )
break;
if( ! pArea->dbsi.itmCobFor ||
hb_itemGetL( hb_vmEvalBlock( pArea->dbsi.itmCobFor ) ) )
{
pArea->fFound = TRUE;
break;
}
if( !fContinue &&
( pArea->dbsi.itmRecID || ( pArea->dbsi.lNext && --lNext < 1 ) ) )
break;
if( SELF_SKIP( pArea, 1 ) != SUCCESS )
return FAILURE;
}
}
return SUCCESS;
}
/*
* Copy one or more records from one WorkArea to another.
*/
ERRCODE hb_waTrans( AREAP pArea, LPDBTRANSINFO pTransInfo )
{
LONG lNext = 1;
BOOL fEof;
HB_TRACE(HB_TR_DEBUG, ("hb_waTrans(%p, %p)", pArea, pTransInfo));
if( pTransInfo->dbsci.itmRecID )
{
if( SELF_GOTOID( pArea, pTransInfo->dbsci.itmRecID ) != SUCCESS )
return FAILURE;
}
else if( pTransInfo->dbsci.lNext )
{
lNext = hb_itemGetNL( pTransInfo->dbsci.lNext );
}
else if( !pTransInfo->dbsci.itmCobWhile &&
!hb_itemGetL( pTransInfo->dbsci.fRest ) )
{
if( SELF_GOTOP( pArea ) != SUCCESS )
return FAILURE;
}
/* TODO: use SKIPSCOPE() method and fRest parameter */
if( !pTransInfo->dbsci.lNext || lNext > 0 )
{
while( TRUE )
{
if( SELF_EOF( pArea, &fEof ) != SUCCESS )
return FAILURE;
if( fEof )
break;
if( pTransInfo->dbsci.itmCobWhile &&
! hb_itemGetL( hb_vmEvalBlock( pTransInfo->dbsci.itmCobWhile ) ) )
break;
if( ! pTransInfo->dbsci.itmCobFor ||
hb_itemGetL( hb_vmEvalBlock( pTransInfo->dbsci.itmCobFor ) ) )
{
if( SELF_TRANSREC( pArea, pTransInfo ) != SUCCESS )
return FAILURE;
}
if( pTransInfo->dbsci.itmRecID || ( pTransInfo->dbsci.lNext && --lNext < 1 ) )
break;
if( SELF_SKIP( pArea, 1 ) != SUCCESS )
return FAILURE;
}
}
return SUCCESS;
}
/*
* Copy a record to another WorkArea.
*/
ERRCODE hb_waTransRec( AREAP pArea, LPDBTRANSINFO pTransInfo )
{
BOOL bDeleted;
BYTE *pRecord;
ERRCODE errCode;
HB_TRACE(HB_TR_DEBUG, ("hb_waTransRec(%p, %p)", pArea, pTransInfo));
/* Record deleted? */
errCode = SELF_DELETED( ( AREAP ) pArea, &bDeleted );
if( errCode != SUCCESS )
return errCode;
if( pTransInfo->uiFlags & DBTF_MATCH && pTransInfo->uiFlags & DBTF_PUTREC )
{
errCode = SELF_GETREC( ( AREAP ) pArea, &pRecord );
if( errCode != SUCCESS )
return errCode;
/* Append a new record */
errCode = SELF_APPEND( ( AREAP ) pTransInfo->lpaDest, TRUE );
if( errCode != SUCCESS )
return errCode;
/* Copy record */
errCode = SELF_PUTREC( ( AREAP ) pTransInfo->lpaDest, pRecord );
}
else
{
LPDBTRANSITEM pTransItem;
PHB_ITEM pItem;
USHORT uiCount;
/* Append a new record */
errCode = SELF_APPEND( ( AREAP ) pTransInfo->lpaDest, TRUE );
if( errCode != SUCCESS )
return errCode;
pItem = hb_itemNew( NULL );
pTransItem = pTransInfo->lpTransItems;
for( uiCount = pTransInfo->uiItemCount; uiCount; --uiCount )
{
errCode = SELF_GETVALUE( ( AREAP ) pArea,
pTransItem->uiSource, pItem );
if( errCode != SUCCESS )
break;
errCode = SELF_PUTVALUE( ( AREAP ) pTransInfo->lpaDest,
pTransItem->uiDest, pItem );
if( errCode != SUCCESS )
break;
++pTransItem;
}
hb_itemRelease( pItem );
}
/* Delete the new record if copy fail */
if( errCode != SUCCESS )
{
SELF_DELETE( ( AREAP ) pTransInfo->lpaDest );
return errCode;
}
/* Delete the new record */
if( bDeleted )
return SELF_DELETE( ( AREAP ) pTransInfo->lpaDest );
return SUCCESS;
}
/*
* Report end of relation.
*/
ERRCODE hb_waChildEnd( AREAP pArea, LPDBRELINFO pRelInfo )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waChildEnd(%p, %p)", pArea, pRelInfo));
if( pRelInfo->isScoped )
{
DBORDERINFO pInfo;
pInfo.itmOrder = NULL;
pInfo.atomBagName = NULL;
pInfo.itmResult = hb_itemNew( NULL );
pInfo.itmNewVal = NULL;
SELF_ORDINFO( pArea, DBOI_SCOPETOPCLEAR, &pInfo );
SELF_ORDINFO( pArea, DBOI_SCOPEBOTTOMCLEAR, &pInfo );
hb_itemRelease( pInfo.itmResult );
}
pArea->uiParents--;
return SUCCESS;
}
/*
* Report initialization of a relation.
*/
ERRCODE hb_waChildStart( AREAP pArea, LPDBRELINFO pRelInfo )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waChildStart(%p, %p)", pArea, pRelInfo));
HB_SYMBOL_UNUSED( pRelInfo );
pArea->uiParents ++;
return SUCCESS;
}
/*
* Force relational movement in child WorkAreas.
*/
ERRCODE hb_waSyncChildren( AREAP pArea )
{
LPDBRELINFO lpdbRelation;
HB_TRACE(HB_TR_DEBUG, ("hb_waSyncChildren(%p)", pArea));
lpdbRelation = pArea->lpdbRelations;
while( lpdbRelation )
{
if( SELF_CHILDSYNC( lpdbRelation->lpaChild, lpdbRelation ) != SUCCESS )
return FAILURE;
lpdbRelation = lpdbRelation->lpdbriNext;
}
return SUCCESS;
}
/*
* Clear all relations in the specified WorkArea.
*/
ERRCODE hb_waClearRel( AREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waClearRel(%p)", pArea ));
/* Free all relations */
if( pArea->lpdbRelations )
{
int iCurrArea = hb_rddGetCurrentWorkAreaNumber();
do
{
LPDBRELINFO lpdbRelation = pArea->lpdbRelations;
hb_rddSelectWorkAreaNumber( lpdbRelation->lpaChild->uiArea );
SELF_CHILDEND( lpdbRelation->lpaChild, lpdbRelation );
pArea->lpdbRelations = lpdbRelation->lpdbriNext;
if( lpdbRelation->itmCobExpr )
{
hb_itemRelease( lpdbRelation->itmCobExpr );
}
if( lpdbRelation->abKey )
{
hb_itemRelease( lpdbRelation->abKey );
}
hb_xfree( lpdbRelation );
}
while( pArea->lpdbRelations );
hb_rddSelectWorkAreaNumber( iCurrArea );
}
return SUCCESS;
}
/*
* Obtain the workarea number of the specified relation.
*/
ERRCODE hb_waRelArea( AREAP pArea, USHORT uiRelNo, void * pRelArea )
{
LPDBRELINFO lpdbRelations;
USHORT uiIndex = 1;
USHORT* pWA = (USHORT *) pRelArea ;
/*TODO: Why pRelArea declared as void*? This creates casting hassles.*/
HB_TRACE(HB_TR_DEBUG, ("hb_waRelArea(%p, %hu, %p)", pArea, uiRelNo, pRelArea));
*pWA = 0;
lpdbRelations = pArea->lpdbRelations;
while( lpdbRelations )
{
if( uiIndex++ == uiRelNo )
{
*pWA = lpdbRelations->lpaChild->uiArea;
break;
}
lpdbRelations = lpdbRelations->lpdbriNext;
}
return *pWA ? SUCCESS : FAILURE ;
}
/*
* Evaluate a block against the relation in specified WorkArea.
*/
ERRCODE hb_waRelEval( AREAP pArea, LPDBRELINFO pRelInfo )
{
PHB_ITEM pResult;
DBORDERINFO pInfo;
ERRCODE errCode;
int iOrder;
HB_TRACE(HB_TR_DEBUG, ("hb_waRelEval(%p, %p)", pArea, pRelInfo));
errCode = SELF_EVALBLOCK( pRelInfo->lpaParent, pRelInfo->itmCobExpr );
if( errCode == SUCCESS )
{
/*
* Check the current order
*/
pResult = pRelInfo->lpaParent->valResult;
pRelInfo->lpaParent->valResult = NULL;
memset( &pInfo, 0, sizeof( DBORDERINFO ) );
pInfo.itmResult = hb_itemPutNI( NULL, 0 );
errCode = SELF_ORDINFO( pArea, DBOI_NUMBER, &pInfo );
if( errCode == SUCCESS )
{
iOrder = hb_itemGetNI( pInfo.itmResult );
if( iOrder != 0 )
{
if( pRelInfo->isScoped )
{
pInfo.itmNewVal = pResult;
errCode = SELF_ORDINFO( pArea, DBOI_SCOPETOP, &pInfo );
if( errCode == SUCCESS )
errCode = SELF_ORDINFO( pArea, DBOI_SCOPEBOTTOM, &pInfo );
}
if( errCode == SUCCESS )
errCode = SELF_SEEK( pArea, FALSE, pResult, FALSE );
}
else
{
/*
* If current order equals to zero, use GOTOID instead of SEEK
* Unfortunately it interacts with buggy .prg code which returns
* non numerical values from relation expression and RDD accepts
* only numerical record ID. In such case SELF_GOTO() works like
* SELF_GOEOF() but SELF_GOTOID() reports error. So for Clipper
* compatibility SELF_GOTO() is used here but if RDD can use
* non numerical record IDs then this method should be overloaded
* to use SELF_GOTOID(), [druzus]
*/
/* errCode = SELF_GOTOID( pArea, pResult ); */
errCode = SELF_GOTO( pArea, hb_itemGetNL( pResult ) );
}
}
hb_itemRelease( pInfo.itmResult );
hb_itemRelease( pResult );
}
return errCode;
}
/*
* Obtain the character expression of the specified relation.
*/
ERRCODE hb_waRelText( AREAP pArea, USHORT uiRelNo, void * pExpr )
{
LPDBRELINFO lpdbRelations;
USHORT uiIndex = 1;
HB_TRACE(HB_TR_DEBUG, ("hb_waRelText(%p, %hu, %p)", pArea, uiRelNo, pExpr));
lpdbRelations = pArea->lpdbRelations;
while( lpdbRelations )
{
if( uiIndex++ == uiRelNo )
{
hb_strncpy( ( char* ) pExpr, hb_itemGetCPtr( lpdbRelations->abKey ),
HARBOUR_MAX_RDD_RELTEXT_LENGTH );
return SUCCESS;
}
lpdbRelations = lpdbRelations->lpdbriNext;
}
* ( char * ) pExpr = 0;
return FAILURE;
}
/*
* Set a relation in the parent file.
*/
ERRCODE hb_waSetRel( AREAP pArea, LPDBRELINFO lpdbRelInf )
{
LPDBRELINFO lpdbRelations;
HB_TRACE(HB_TR_DEBUG, ("hb_waSetRel(%p, %p)", pArea, lpdbRelInf));
lpdbRelations = pArea->lpdbRelations;
if( ! lpdbRelations )
{
pArea->lpdbRelations = ( LPDBRELINFO ) hb_xgrab( sizeof( DBRELINFO ) );
lpdbRelations = pArea->lpdbRelations;
}
else
{
while( lpdbRelations->lpdbriNext )
lpdbRelations = lpdbRelations->lpdbriNext;
lpdbRelations->lpdbriNext = ( LPDBRELINFO ) hb_xgrab( sizeof( DBRELINFO ) );
lpdbRelations = lpdbRelations->lpdbriNext;
}
lpdbRelations->lpaParent = pArea;
lpdbRelations->lpaChild = lpdbRelInf->lpaChild;
lpdbRelations->itmCobExpr = lpdbRelInf->itmCobExpr;
lpdbRelations->isScoped = lpdbRelInf->isScoped;
lpdbRelations->isOptimized = lpdbRelInf->isOptimized;
lpdbRelations->abKey = lpdbRelInf->abKey;
lpdbRelations->lpdbriNext = lpdbRelInf->lpdbriNext;
return SELF_CHILDSTART( ( AREAP ) lpdbRelInf->lpaChild, lpdbRelations );
}
/*
* Clear the active filter expression.
*/
ERRCODE hb_waClearFilter( AREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waClearFilter(%p)", pArea));
/* Free all items */
if( pArea->dbfi.itmCobExpr )
{
hb_itemRelease( pArea->dbfi.itmCobExpr );
pArea->dbfi.itmCobExpr = NULL;
}
if( pArea->dbfi.abFilterText )
{
hb_itemRelease( pArea->dbfi.abFilterText );
pArea->dbfi.abFilterText = NULL;
}
pArea->dbfi.fOptimized = FALSE;
pArea->dbfi.fFilter = FALSE;
return SUCCESS;
}
/*
* Clear the active locate expression.
*/
ERRCODE hb_waClearLocate( AREAP pArea )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waClearLocate(%p)", pArea));
/* Free all items */
if( pArea->dbsi.itmCobFor )
{
hb_itemRelease( pArea->dbsi.itmCobFor );
pArea->dbsi.itmCobFor = NULL;
}
if( pArea->dbsi.lpstrFor )
{
hb_itemRelease( pArea->dbsi.lpstrFor );
pArea->dbsi.lpstrFor = NULL;
}
if( pArea->dbsi.itmCobWhile )
{
hb_itemRelease( pArea->dbsi.itmCobWhile );
pArea->dbsi.itmCobWhile = NULL;
}
if( pArea->dbsi.lpstrWhile )
{
hb_itemRelease( pArea->dbsi.lpstrWhile );
pArea->dbsi.lpstrWhile = NULL;
}
if( pArea->dbsi.lNext )
{
hb_itemRelease( pArea->dbsi.lNext );
pArea->dbsi.lNext = NULL;
}
if( pArea->dbsi.itmRecID )
{
hb_itemRelease( pArea->dbsi.itmRecID );
pArea->dbsi.itmRecID = NULL;
}
if( pArea->dbsi.fRest )
{
hb_itemRelease( pArea->dbsi.fRest );
pArea->dbsi.fRest = NULL;
}
return SUCCESS;
}
/*
* Return filter condition of the specified WorkArea.
*/
ERRCODE hb_waFilterText( AREAP pArea, PHB_ITEM pFilter )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waFilterText(%p, %p)", pArea, pFilter));
if( pArea->dbfi.abFilterText )
hb_itemCopy( pFilter, pArea->dbfi.abFilterText );
return SUCCESS;
}
/*
* Set the filter condition for the specified WorkArea.
*/
ERRCODE hb_waSetFilter( AREAP pArea, LPDBFILTERINFO pFilterInfo )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waSetFilter(%p, %p)", pArea, pFilterInfo));
/* Clear the active filter expression */
if( SELF_CLEARFILTER( pArea ) != SUCCESS )
return FAILURE;
if( pFilterInfo->itmCobExpr )
{
pArea->dbfi.itmCobExpr = hb_itemNew( pFilterInfo->itmCobExpr );
}
if( pFilterInfo->abFilterText )
{
pArea->dbfi.abFilterText = hb_itemNew( pFilterInfo->abFilterText );
}
pArea->dbfi.fOptimized = pFilterInfo->fOptimized;
pArea->dbfi.fFilter = TRUE;
return SUCCESS;
}
/*
* Set the locate scope for the specified WorkArea.
*/
ERRCODE hb_waSetLocate( AREAP pArea, LPDBSCOPEINFO pScopeInfo )
{
HB_TRACE(HB_TR_DEBUG, ("hb_waSetLocate(%p, %p)", pArea, pScopeInfo));
/* Clear the active locate expression */
if( SELF_CLEARLOCATE( pArea ) != SUCCESS )
return FAILURE;
if( pScopeInfo->itmCobFor )
pArea->dbsi.itmCobFor = hb_itemNew( pScopeInfo->itmCobFor );
if( pScopeInfo->lpstrFor )
pArea->dbsi.lpstrFor = hb_itemNew( pScopeInfo->lpstrFor );
if( pScopeInfo->itmCobWhile )
pArea->dbsi.itmCobWhile = hb_itemNew( pScopeInfo->itmCobWhile );
if( pScopeInfo->lpstrWhile )
pArea->dbsi.lpstrWhile = hb_itemNew( pScopeInfo->lpstrWhile );
if( pScopeInfo->lNext )
pArea->dbsi.lNext = hb_itemNew( pScopeInfo->lNext );
if( pScopeInfo->itmRecID )
pArea->dbsi.itmRecID = hb_itemNew( pScopeInfo->itmRecID );
if( pScopeInfo->fRest )
pArea->dbsi.fRest = hb_itemNew( pScopeInfo->fRest );
pArea->dbsi.fIgnoreFilter = pScopeInfo->fIgnoreFilter;
pArea->dbsi.fIncludeDeleted = pScopeInfo->fIncludeDeleted;
pArea->dbsi.fLast = pScopeInfo->fLast;
pArea->dbsi.fIgnoreDuplicates = pScopeInfo->fIgnoreDuplicates;
pArea->dbsi.fBackward = pScopeInfo->fBackward;
pArea->dbsi.fOptimized = pScopeInfo->fOptimized;
return SUCCESS;
}
/*
* Compile a character expression.
*/
ERRCODE hb_waCompile( AREAP pArea, BYTE * pExpr )
{
HB_MACRO_PTR pMacro;
HB_TRACE(HB_TR_DEBUG, ("hb_waCompile(%p, %p)", pArea, pExpr));
pMacro = hb_macroCompile( ( char * ) pExpr );
if( pMacro )
{
pArea->valResult = hb_itemPutPtr( pArea->valResult, ( void * ) pMacro );
return SUCCESS;
}
else
return FAILURE;
}
/*
* Raise a runtime error.
*/
ERRCODE hb_waError( AREAP pArea, PHB_ITEM pError )
{
char * szRddName;
HB_TRACE(HB_TR_DEBUG, ("hb_waError(%p, %p)", pArea, pError));
szRddName = ( char * ) hb_xgrab( HARBOUR_MAX_RDD_DRIVERNAME_LENGTH + 1 );
if( pArea && pArea->lprfsHost->sysName )
SELF_SYSNAME( pArea, ( BYTE * ) szRddName );
else
strcpy( szRddName, "???DRIVER" );
hb_errPutSeverity( pError, ES_ERROR );
hb_errPutSubSystem( pError, szRddName );
hb_xfree( szRddName );
return hb_errLaunch( pError );
}
/*
* Evaluate a code block.
*/
ERRCODE hb_waEvalBlock( AREAP pArea, PHB_ITEM pBlock )
{
PHB_ITEM pItem;
int iCurrArea;
HB_TRACE(HB_TR_DEBUG, ("hb_waEvalBlock(%p, %p)", pArea, pBlock));
iCurrArea = hb_rddGetCurrentWorkAreaNumber();
if( iCurrArea != pArea->uiArea )
hb_rddSelectWorkAreaNumber( pArea->uiArea );
else
iCurrArea = 0;
pItem = hb_vmEvalBlockOrMacro( pBlock );
if( ! pArea->valResult )
pArea->valResult = hb_itemNew( NULL );
hb_itemCopy( pArea->valResult, pItem );
if( iCurrArea )
hb_rddSelectWorkAreaNumber( iCurrArea );
return hb_vmRequestQuery() ? FAILURE : SUCCESS;
}
/*
* RDD info
*/
ERRCODE hb_rddInfo( LPRDDNODE pRDD, USHORT uiIndex, ULONG ulConnection, PHB_ITEM pItem )
{
BOOL fResult;
int iResult;
HB_TRACE(HB_TR_DEBUG, ("hb_rddInfo(%p, %hu, %lu, %p)", pRDD, uiIndex, ulConnection, pItem));
HB_SYMBOL_UNUSED( pRDD );
HB_SYMBOL_UNUSED( ulConnection );
switch( uiIndex )
{
case RDDI_ISDBF:
case RDDI_CANPUTREC:
case RDDI_LOCAL:
case RDDI_REMOTE:
case RDDI_RECORDMAP:
case RDDI_ENCRYPTION:
case RDDI_TRIGGERS:
case RDDI_AUTOLOCK:
case RDDI_STRUCTORD:
case RDDI_LARGEFILE:
case RDDI_MULTITAG:
case RDDI_SORTRECNO:
case RDDI_MULTIKEY:
case RDDI_BLOB_SUPPORT:
hb_itemPutL( pItem, FALSE );
break;
case RDDI_CONNECTION:
case RDDI_TABLETYPE:
case RDDI_MEMOTYPE:
case RDDI_MEMOVERSION:
hb_itemPutNI( pItem, 0 );
break;
case RDDI_STRICTREAD:
fResult = hb_set.HB_SET_STRICTREAD;
if( hb_itemType( pItem ) == HB_IT_LOGICAL )
hb_set.HB_SET_STRICTREAD = hb_itemGetL( pItem );
hb_itemPutL( pItem, fResult );
break;
case RDDI_OPTIMIZE:
fResult = hb_set.HB_SET_OPTIMIZE;
if( hb_itemType( pItem ) == HB_IT_LOGICAL )
hb_set.HB_SET_OPTIMIZE = hb_itemGetL( pItem );
hb_itemPutL( pItem, fResult );
break;
case RDDI_FORCEOPT:
fResult = hb_set.HB_SET_FORCEOPT;
if( hb_itemType( pItem ) == HB_IT_LOGICAL )
hb_set.HB_SET_FORCEOPT = hb_itemGetL( pItem );
hb_itemPutL( pItem, fResult );
break;
case RDDI_AUTOOPEN:
fResult = hb_set.HB_SET_AUTOPEN;
if( hb_itemType( pItem ) == HB_IT_LOGICAL )
hb_set.HB_SET_AUTOPEN = hb_itemGetL( pItem );
hb_itemPutL( pItem, fResult );
break;
case RDDI_AUTOORDER:
fResult = hb_set.HB_SET_AUTORDER;
if( hb_itemType( pItem ) == HB_IT_LOGICAL )
hb_set.HB_SET_AUTORDER = hb_itemGetL( pItem );
hb_itemPutL( pItem, fResult );
break;
case RDDI_AUTOSHARE:
fResult = hb_set.HB_SET_AUTOSHARE;
if( hb_itemType( pItem ) == HB_IT_LOGICAL )
hb_set.HB_SET_AUTOSHARE = hb_itemGetL( pItem );
hb_itemPutL( pItem, fResult );
break;
case RDDI_LOCKSCHEME:
iResult = hb_set.HB_SET_DBFLOCKSCHEME;
if( hb_itemType( pItem ) & HB_IT_NUMERIC )
hb_set.HB_SET_DBFLOCKSCHEME = hb_itemGetNI( pItem );
hb_itemPutNI( pItem, iResult );
break;
case RDDI_MEMOBLOCKSIZE:
iResult = hb_set.HB_SET_MBLOCKSIZE;
if( hb_itemType( pItem ) & HB_IT_NUMERIC )
hb_set.HB_SET_MBLOCKSIZE = hb_itemGetNI( pItem );
hb_itemPutNI( pItem, iResult );
break;
case RDDI_MEMOEXT:
if( hb_itemType( pItem ) & HB_IT_STRING )
{
if( hb_set.HB_SET_MFILEEXT )
{
hb_itemPutC( pItem, hb_set.HB_SET_MFILEEXT );
hb_xfree( hb_set.HB_SET_MFILEEXT );
}
else
{
hb_itemPutC( pItem, "" );
}
hb_set.HB_SET_MFILEEXT = hb_strdup( hb_itemGetCPtr( pItem ) );
break;
}
else if( hb_set.HB_SET_MFILEEXT )
{
hb_itemPutC( pItem, hb_set.HB_SET_MFILEEXT );
break;
}
case RDDI_TABLEEXT:
case RDDI_ORDBAGEXT:
case RDDI_ORDEREXT:
case RDDI_ORDSTRUCTEXT:
case RDDI_DELIMITER:
case RDDI_SEPARATOR:
hb_itemPutC( pItem, "" );
/* no break - return FAILURE */
default:
return FAILURE;
}
return SUCCESS;
}
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