Files
harbour-core/harbour/contrib/rddsql/sqlmix.c
Przemyslaw Czerpak 7ec5d4cc53 2009-11-08 02:43 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/src/vm/set.c
    ! fixed small typos in returned values (FALSE instead of NULL and 0)

  * harbour/src/vm/estack.c
    * make calling hb_stackTotalItems() safe in MT mode when stack is not
      initialized - now this function can be used to check if HVM stack
      exists and is initialized in ST and MT mode

  * harbour/src/rtl/errintlo.c
    ! fixed at least 4 GPF traps exploited when hb_errInternal() was called
      and HVM stack was not initialized

  * harbour/include/Makefile
  + harbour/include/hbcdpreg.h
  * harbour/include/hbapicdp.h
  * harbour/src/rtl/cdpapi.c
    + added new CDP API which fixes many errors and limitations in old
      implementation.
      Warning !!! some very serious bugs in national sorting have been
                  fixed. It may cause that old indexes using some national
                  sorting will not be compatible. Please rebuild existing
                  indexes.

  * harbour/src/vm/itemapi.c
  * harbour/src/rdd/hsx/hsx.c
  * harbour/src/rdd/dbfntx/dbfntx1.c
  * harbour/src/rdd/dbfnsx/dbfnsx1.c
  * harbour/src/rdd/dbfcdx/dbfcdx1.c
  * harbour/contrib/hbbmcdx/bmdbfcdx.c
  * harbour/contrib/rddads/adsx.c
  * harbour/contrib/rddsql/sqlmix.c
    * updated to work with new CDP API
    TOFIX: update adsx.c and sqlmix.c to use hb_cdpcmp() which resepcts
           sorting with accented and mulitybyts characters.
           Mindaugas, can you update above code?

  * harbour/src/codepage/cpbg866.c
  * harbour/src/codepage/cpbgiso.c
  * harbour/src/codepage/cpbgmik.c
  * harbour/src/codepage/cpbgwin.c
  * harbour/src/codepage/cpcs852.c
  * harbour/src/codepage/cpcsiso.c
  * harbour/src/codepage/cpcskam.c
  * harbour/src/codepage/cpcswin.c
  * harbour/src/codepage/cpde850.c
  * harbour/src/codepage/cpdeiso.c
  * harbour/src/codepage/cpdewin.c
  * harbour/src/codepage/cpel737.c
  * harbour/src/codepage/cpeliso.c
  * harbour/src/codepage/cpelwin.c
  * harbour/src/codepage/cpes850.c
  * harbour/src/codepage/cpes850c.c
  * harbour/src/codepage/cpesiso.c
  * harbour/src/codepage/cpesisoc.c
  * harbour/src/codepage/cpeswin.c
  * harbour/src/codepage/cpeswinc.c
  * harbour/src/codepage/cpeswinm.c
  * harbour/src/codepage/cpfr850.c
  * harbour/src/codepage/cpfriso.c
  * harbour/src/codepage/cpfrwin.c
  * harbour/src/codepage/cphr437.c
  * harbour/src/codepage/cphr852.c
  * harbour/src/codepage/cphrwin.c
  * harbour/src/codepage/cphu852.c
  * harbour/src/codepage/cphu852s.c
  * harbour/src/codepage/cphuiso.c
  * harbour/src/codepage/cphuisos.c
  * harbour/src/codepage/cphuwin.c
  * harbour/src/codepage/cphuwins.c
  * harbour/src/codepage/cpit437.c
  * harbour/src/codepage/cpit850.c
  * harbour/src/codepage/cpitisb.c
  * harbour/src/codepage/cpitiso.c
  * harbour/src/codepage/cpitwin.c
  * harbour/src/codepage/cpltwin.c
  * harbour/src/codepage/cppl852.c
  * harbour/src/codepage/cppliso.c
  * harbour/src/codepage/cpplmaz.c
  * harbour/src/codepage/cpplwin.c
  * harbour/src/codepage/cppt850.c
  * harbour/src/codepage/cpptiso.c
  * harbour/src/codepage/cpro852.c
  * harbour/src/codepage/cproiso.c
  * harbour/src/codepage/cprowin.c
  * harbour/src/codepage/cpru866.c
  * harbour/src/codepage/cpruiso.c
  * harbour/src/codepage/cprukoi.c
  * harbour/src/codepage/cpruwin.c
  * harbour/src/codepage/cpsk852.c
  * harbour/src/codepage/cpskiso.c
  * harbour/src/codepage/cpskkam.c
  * harbour/src/codepage/cpskwin.c
  * harbour/src/codepage/cpsl437.c
  * harbour/src/codepage/cpsl852.c
  * harbour/src/codepage/cpsliso.c
  * harbour/src/codepage/cpslwin.c
  * harbour/src/codepage/cpsrwin.c
  * harbour/src/codepage/cpsv850.c
  * harbour/src/codepage/cpsvclip.c
  * harbour/src/codepage/cpsviso.c
  * harbour/src/codepage/cpsvwin.c
  * harbour/src/codepage/cptr857.c
  * harbour/src/codepage/cptriso.c
  * harbour/src/codepage/cptrwin.c
  * harbour/src/codepage/cpua1125.c
  * harbour/src/codepage/cpua866.c
  * harbour/src/codepage/cpuakoi.c
  * harbour/src/codepage/cpuawin.c
  * harbour/src/codepage/uc037.c
  * harbour/src/codepage/uc1006.c
  * harbour/src/codepage/uc1026.c
  * harbour/src/codepage/uc1125.c
  * harbour/src/codepage/uc1250.c
  * harbour/src/codepage/uc1251.c
  * harbour/src/codepage/uc1252.c
  * harbour/src/codepage/uc1253.c
  * harbour/src/codepage/uc1254.c
  * harbour/src/codepage/uc1255.c
  * harbour/src/codepage/uc1256.c
  * harbour/src/codepage/uc1257.c
  * harbour/src/codepage/uc1258.c
  * harbour/src/codepage/uc424.c
  * harbour/src/codepage/uc500.c
  * harbour/src/codepage/uc737.c
  * harbour/src/codepage/uc775.c
  * harbour/src/codepage/uc850.c
  * harbour/src/codepage/uc852.c
  * harbour/src/codepage/uc855.c
  * harbour/src/codepage/uc856.c
  * harbour/src/codepage/uc857.c
  * harbour/src/codepage/uc860.c
  * harbour/src/codepage/uc861.c
  * harbour/src/codepage/uc862.c
  * harbour/src/codepage/uc863.c
  * harbour/src/codepage/uc864.c
  * harbour/src/codepage/uc865.c
  * harbour/src/codepage/uc866.c
  * harbour/src/codepage/uc869.c
  * harbour/src/codepage/uc874.c
  * harbour/src/codepage/uc875.c
  * harbour/src/codepage/uc885910.c
  * harbour/src/codepage/uc885911.c
  * harbour/src/codepage/uc885913.c
  * harbour/src/codepage/uc885914.c
  * harbour/src/codepage/uc885915.c
  * harbour/src/codepage/uc885916.c
  * harbour/src/codepage/uc88591b.c
  * harbour/src/codepage/uc8859_1.c
  * harbour/src/codepage/uc8859_2.c
  * harbour/src/codepage/uc8859_3.c
  * harbour/src/codepage/uc8859_4.c
  * harbour/src/codepage/uc8859_5.c
  * harbour/src/codepage/uc8859_6.c
  * harbour/src/codepage/uc8859_7.c
  * harbour/src/codepage/uc8859_8.c
  * harbour/src/codepage/uc8859_9.c
  * harbour/src/codepage/ucascii.c
  * harbour/src/codepage/ucatari.c
  * harbour/src/codepage/uckam.c
  * harbour/src/codepage/uckoi8.c
  * harbour/src/codepage/uckoi8u.c
  * harbour/src/codepage/ucmacce.c
  * harbour/src/codepage/ucmaccyr.c
  * harbour/src/codepage/ucmacgrk.c
  * harbour/src/codepage/ucmacice.c
  * harbour/src/codepage/ucmacrom.c
  * harbour/src/codepage/ucmactrk.c
  * harbour/src/codepage/ucmaz.c
  * harbour/src/codepage/ucmik.c
  * harbour/src/codepage/ucnext.c
    * updated for new CP API
    Warning: please test all national CPs. I'm not able to test unknown for
             me national character conditions so it's possible that I made
             something wrong. Additionally current CP API does not have
             some limitations which existed in the old one so now some hacks
             or workarounds can be cleaned. I.e. now all translations are
             done using Unicode tables so it's not necessary to use the
             same number of characters to make them working.
             Updating CP files I've found the following potential problems
             in definitions which I haven't fixed or fixed only partially:

         cpes850c.c - update for new format removing hacks for old CP
                      implementation
         cpesisoc.c  > remove, it's not longer necessary
         cpeswinc.c /
         cpeswinm.c - it is the same as cpesiso.c so it should be removed

         cphu852.c  \
         cphu852s.c  \
         cphuiso.c    > update for new format removing hacks for old CP
         cphuwin.c   /  implementation

         cphuisos.c  > remove, it's not longer necessary
         cphuwins.c /

         cphr437.c  > does it really use CP-437? and ^]\[@~}|{` instead of
         cpsl437.c /  nationalletters or it uses different then 437 CP for
                      7-bit Croatian characters encoding. It's important
                      because without valid unicode table translations will
                      not work.

         cpit437.c  - update for new version if necessary (upper characters)

         cpsv850.c \
         cpsviso.c  > they had ACCENTED_INTERLEAVED but without ACCENTED_EQUAL
         cpsvwin.c /  so this setting was ignored. Now it's not ignored.

         cpsvclip.c - update for new format to be fully not only
                      "almost compatible with Clipper's NTXSWE.OBJ"

      For sure these are not all problems inherited from old CP
      implementation so please verify all existing CPs.

  * harbour/src/codepage/cp_tpl.c
    + added new example for CP definition. Working on new CPs please read
      this description:
         If accented characters need special sorting ( HB_CDP_ACSORT_EQUAL or
         HB_CDP_ACSORT_INTERLEAVE ) then you need to mark the accented
         characters with the symbol '~' before each of them, for example:
            a~_
         If there is two-character sequence, which is considered as one, it
         should be marked with '.' before and after it, for example:
            ... h.ch.i ...
         if such multibyte character has its own Unicode representation then
         this Unicode value can be set using '=' symbol, for example:
            ....h.ch=2A7C.i
         and it will be used in translations.

         The Upper case string and the Lower case string should use the
         same letters. If some characters does not have corresponding upper
         or lower letter then space ' ' can be used as dummy character, for
         example in German CPs there is no upper case 'scharfes S' letter
         so space is used as dummy character.

         HB_CP_LATIN should be 1 if the national alphabet is based on Latin
         otherwise 0

      Please note that now you can use two versions of CP definition.
      The 1-st one which uses human readable form similar to the old CP
      definition and 2-nd which uses directly final CP tables so it
      allows to replicate any conditions which existed in Clipper or
      any other compatible language which uses static tables.
      tests/cpinfo.prg can generate automatically .c files with new CP
      definition in the 2-nd version. Now if user wants to create new
      Harbour CP which is fully Clipper compatible he only has to
      compile and link cpinfo.prg with given national sorting module
      and then execute it with new Harbour CP name as 1-st parameter.
      cp<cpname>.c file is generated which can be added to Harbour
      repository. Optional 2-nd parameter is CP description and 3-rd
      is Harbour Unicode table ID (if not given 437 is used and should
      be updated by user in .c file). This method should definitely
      resolve any problems with creating Clipper compatible CP definition.
      It also allows to easy verify if CP definitions are compatible. It's
      enough to compare generated .c files.

  * harbour/src/codepage/uckam.c
    ! fixed Kamenicky Unicode table definition - it was Mazovia CP :)

  * harbour/src/codepage/cpde850.c
  * harbour/src/codepage/cpdeiso.c
  * harbour/src/codepage/cpdewin.c
    ! fixed CP wrongly encoded CP due to limitations in old CP definition.
      Now it's possible to define different number of upper an lower
      characters (space " " can be used as dummy character) and I used
      it to eliminate hack for 'scharfes S' which does not exists as upper
      case.
      Please clean other CPs which contain similar hacks.

  * harbour/src/codepage/cphu852.c
  * harbour/src/codepage/cphuiso.c
  * harbour/src/codepage/cphuwin.c
  * harbour/src/codepage/cpua866.c
    * removed dummy letters introduced for old translation code

  * harbour/src/rtl/natmsg.c
  * harbour/src/rtl/cdpapi.c
  * harbour/include/hbextern.ch
    + added HB_CDPINFO() function
    * redirected _NATSORTVER() function to HB_CDPINFO()

   To All,
      Please check your national sorting in current version and make
      any updates if necessary or inform me about found problems.
      I've checked that Polish CPs are working fine and all existing
      CPs passes my test program which verified some technical aspects
      of CP implementation. But I cannot verify if this definitions
      satisfy users in different countries.
2009-11-08 01:46:17 +00:00

2326 lines
66 KiB
C

/*
* $Id$
*/
/*
* SQL MIX (Memory Index) Database Driver
*
* Copyright 2007 Mindaugas Kavaliauskas <dbtopas at dbtopas.lt>
* 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.
*
*/
#include "hbapi.h"
#include "hbinit.h"
#include "hbapiitm.h"
#include "hbapirdd.h"
#include "hbapierr.h"
#include "hbdbferr.h"
#include "hbapilng.h"
#include "hbdate.h"
#include "hbset.h"
#include "hbvm.h"
#include "rddsys.ch"
#include "hbrddsql.h"
#define SUPERTABLE ( &sqlmixSuper )
#define MIX_KEY( tag, node, index ) \
( (PMIXKEY) & ( (BYTE*) (node) ) [ ( (node)->Leaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + (index) * (tag)->uiTotalLen ] )
#define MIX_COPY_KEYS_INTERNAL( tag, node, dst, src, count ) \
memmove( ( (BYTE*) (node) ) + ( (node)->Leaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + (dst) * (tag)->uiTotalLen, \
( (BYTE*) (node) ) + ( (node)->Leaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + (src) * (tag)->uiTotalLen, \
(count) * (tag)->uiTotalLen )
#define MIX_COPY_KEYS_EXTERNAL( tag, ndst, dst, nsrc, src, count ) \
memmove( ( (BYTE*) (ndst) ) + ( (ndst)->Leaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + (dst) * (tag)->uiTotalLen, \
( (BYTE*) (nsrc) ) + ( (nsrc)->Leaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + (src) * (tag)->uiTotalLen, \
(count) * (tag)->uiTotalLen )
#define MIX_ASSIGN_KEY( tag, node, dst, src ) \
memmove( ( (BYTE*) (node) ) + ( (node)->Leaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + (dst) * (tag)->uiTotalLen, \
(src), (tag)->uiTotalLen )
#define MIX_COPY_CHILDS_INTERNAL( tag, node, dst, src, count ) \
memmove( & ((node)->Child[ (dst) ]), & ((node)->Child[ (src) ]), (count) * sizeof( void* ) )
#define MIX_COPY_CHILDS_EXTERNAL( tag, ndst, dst, nsrc, src, count ) \
memmove( & ((ndst)->Child[ (dst) ]), & ((nsrc)->Child[ (src) ]), (count) * sizeof( void* ) )
static USHORT s_uiRddIdSQLMIX = ( USHORT ) -1;
static RDDFUNCS sqlmixSuper;
/*
=======================================================================
Misc functions
=======================================================================
*/
static HB_ERRCODE sqlmixErrorRT( SQLMIXAREAP pArea, USHORT uiGenCode, USHORT uiSubCode, char* filename, USHORT uiOsCode, USHORT uiFlags )
{
PHB_ITEM pError;
HB_ERRCODE iRet = HB_FAILURE;
if ( hb_vmRequestQuery() == 0 )
{
pError = hb_errNew();
hb_errPutGenCode( pError, uiGenCode );
hb_errPutSubCode( pError, uiSubCode );
hb_errPutOsCode( pError, uiOsCode );
hb_errPutDescription( pError, hb_langDGetErrorDesc( uiGenCode ) );
if ( filename )
hb_errPutFileName( pError, filename );
if ( uiFlags )
hb_errPutFlags( pError, uiFlags );
iRet = SELF_ERROR( (AREAP) pArea, pError );
hb_errRelease( pError );
}
return iRet;
}
/*
=======================================================================
Memory Index
=======================================================================
*/
/* -------------------------- Key management ---------------------------- */
/* hb_mixKey*() */
static PMIXKEY hb_mixKeyNew( PMIXTAG pTag )
{
return (PMIXKEY) hb_xgrab( pTag->uiTotalLen );
}
static PMIXKEY hb_mixKeyPutItem( PMIXKEY pKey, PHB_ITEM pItem, ULONG ulRecNo, PMIXTAG pTag )
{
ULONG ul;
double dbl;
BYTE buf[ 8 ];
if ( ! pKey )
pKey = hb_mixKeyNew( pTag );
pKey->rec = ulRecNo;
pKey->notnul = 1;
/* TODO: check valtype */
switch ( pTag->bType )
{
case 'C':
ul = hb_itemGetCLen( pItem );
if ( ul > (ULONG) pTag->uiKeyLen )
ul = pTag->uiKeyLen;
memcpy( pKey->val, hb_itemGetCPtr( pItem ), ul );
if ( ul < (ULONG) pTag->uiKeyLen )
memset( pKey->val + ul, ' ', (ULONG) pTag->uiKeyLen - ul );
break;
case 'N':
dbl = hb_itemGetND( pItem );
HB_DBL2ORD( &dbl, buf );
memcpy( pKey->val, buf, 8 );
break;
case 'D':
dbl = (double) hb_itemGetDL( pItem );
HB_DBL2ORD( &dbl, buf );
memcpy( pKey->val, buf, 8 );
break;
case 'L':
pKey->val[ 0 ] = ( BYTE ) ( hb_itemGetL( pItem ) ? 'T' : 'F' );
break;
default:
pKey->notnul = 0;
memset( pKey->val, ' ', pTag->uiKeyLen );
}
return pKey;
}
static PMIXKEY hb_mixKeyEval( PMIXKEY pKey, PMIXTAG pTag )
{
PHB_ITEM pItem;
SQLMIXAREAP pArea = pTag->pArea;
int iCurrArea = hb_rddGetCurrentWorkAreaNumber();
PHB_CODEPAGE pCodepage = hb_cdpSelect( pArea->sqlarea.area.cdPage );
if ( iCurrArea != pArea->sqlarea.area.uiArea )
hb_rddSelectWorkAreaNumber( pArea->sqlarea.area.uiArea );
else
iCurrArea = 0;
pItem = hb_vmEvalBlockOrMacro( pTag->pKeyItem );
pKey = hb_mixKeyPutItem( pKey, pItem, pArea->sqlarea.ulRecNo, pTag );
if ( iCurrArea )
hb_rddSelectWorkAreaNumber( iCurrArea );
hb_cdpSelect( pCodepage );
return pKey;
}
static BOOL hb_mixEvalCond( SQLMIXAREAP pArea, PHB_ITEM pCondItem )
{
int iCurrArea = 0;
BOOL fRet;
if ( pArea )
{
iCurrArea = hb_rddGetCurrentWorkAreaNumber();
if ( iCurrArea != pArea->sqlarea.area.uiArea )
hb_rddSelectWorkAreaNumber( pArea->sqlarea.area.uiArea );
else
iCurrArea = 0;
}
fRet = hb_itemGetL( hb_vmEvalBlockOrMacro( pCondItem ) );
if ( iCurrArea )
hb_rddSelectWorkAreaNumber( iCurrArea );
return fRet;
}
static void hb_mixKeyFree( PMIXKEY pKey )
{
hb_xfree( pKey );
}
#if 0
/* This function is unused */
static int hb_mixKeyCompareValue( PMIXTAG pTag, PMIXKEY pKey1, PMIXKEY pKey2, unsigned int uiLen )
{
BYTE* pSortTable = pTag->pSortTable;
unsigned int ui, uiSize;
int i;
if ( ! pKey1->notnul || ! pKey2->notnul )
{
return (int) pKey1->notnul - (int) pKey2->notnul;
}
i = 0;
uiSize = pTag->uiKeyLen > uiLen ? uiLen : pTag->uiKeyLen;
if ( pSortTable )
{
ui = 0;
while ( i == 0 && ui < uiSize )
{
i = pSortTable[ pKey1->val[ ui ] ] - pSortTable[ pKey2->val[ ui ] ];
ui++;
}
}
else
{
if ( uiSize > 0 )
i = memcmp( pKey1->val, pKey2->val, uiSize );
}
if ( i == 0 )
{
/* This condition seems inverted, but it's ok for seek last */
if ( pTag->uiKeyLen > uiLen )
i = -1;
}
return i;
}
#endif
static int hb_mixKeyCompare( PMIXTAG pTag, PMIXKEY pKey1, PMIXKEY pKey2, unsigned int uiLen )
{
BYTE* pSortTable = pTag->pSortTable;
unsigned int ui, uiSize;
int i;
if ( ! pKey1->notnul || ! pKey2->notnul )
{
return (int) pKey1->notnul - (int) pKey2->notnul;
}
i = 0;
uiSize = pTag->uiKeyLen > uiLen ? uiLen : pTag->uiKeyLen;
if ( pSortTable )
{
ui = 0;
while ( i == 0 && ui < uiSize )
{
i = pSortTable[ pKey1->val[ ui ] ] - pSortTable[ pKey2->val[ ui ] ];
ui++;
}
}
else
{
if ( uiSize > 0 )
i = memcmp( pKey1->val, pKey2->val, uiSize );
}
if ( i == 0 )
{
if ( pKey2->rec == (ULONG) -1 )
{
/* This condition seems inverted, but it's ok for seek last */
if ( pTag->uiKeyLen > uiLen )
i = -1;
}
else
{
if ( pTag->uiKeyLen > uiLen )
i = 1;
else if ( pTag->uiKeyLen < uiLen )
i = -1;
}
}
if ( i != 0 )
{
if ( i < 0 )
{
return -2;
}
return 2;
}
if ( pKey1->rec < pKey2->rec )
{
return -1;
}
else if ( pKey1->rec > pKey2->rec )
{
return 1;
}
return 0;
}
/* -------------------------- Tag management ---------------------------- */
/* hb_mixTag*() */
/* This function is used for debugging purposes. Uncomment it, if you need it.
static void hb_mixTagPrintNode( PMIXTAG pTag, PMIXNODE pNode, int iLevel )
{
unsigned int i;
if ( !pNode )
return;
if ( pNode->KeyCount < MIX_NODE_ORDER / 2 && pNode->Parent )
{
printf("!!! Too few keys\n");
}
for ( i = 0; i < pNode->KeyCount; i++ )
{
if ( ! pNode->Leaf )
{
if ( pNode->Child[ i ]->Parent != pNode )
printf("!!! Invalid parent\n");
hb_mixTagPrintNode( pTag, pNode->Child[ i ], iLevel + 1 );
}
printf("%*ld %*s\n", iLevel * 10 + 5, MIX_KEY( pTag, pNode, i )->rec, pTag->uiKeyLen,
MIX_KEY( pTag, pNode, i )->notnul ? ( char * ) MIX_KEY( pTag, pNode, i )->val : "NULL" );
}
if ( ! pNode->Leaf )
{
if ( pNode->Child[ pNode->KeyCount ]->Parent != pNode )
printf("!!! Invalid parent\n");
hb_mixTagPrintNode( pTag, pNode->Child[ pNode->KeyCount ], iLevel + 1 );
}
}
*/
static PMIXNODE hb_mixTagCreateNode( PMIXTAG pTag, BOOL fLeaf )
{
PMIXNODE pNode;
ULONG ulSize;
ulSize = ( fLeaf ? sizeof( MIXNODELEAF ) : sizeof( MIXNODE ) ) + MIX_NODE_ORDER * pTag->uiTotalLen;
pNode = (PMIXNODE) hb_xgrab( ulSize );
memset( pNode, 0, ulSize );
pNode->Leaf = fLeaf ? 1 : 0;
return pNode;
}
static unsigned int hb_mixTagNodeParentIndex( PMIXNODE pNode )
{
PMIXNODE pParent = pNode->Parent;
unsigned int ui;
/* Find position in the parent node */
ui = pParent->KeyCount;
do {
if ( pParent->Child[ ui ] == pNode )
return ui;
} while ( ui-- );
return ( unsigned int ) -1;
}
static int hb_mixTagFindKey( PMIXTAG pTag, PMIXKEY pKey, unsigned int uiLen, PMIXNODE* ppNode, unsigned int* puiPos, BOOL fValidKey )
{
PMIXNODE pNode;
unsigned int ui;
int i;
pNode = pTag->Root;
while ( 1 )
{
i = -2;
/* TODO: binary search */
for ( ui = 0; ui < pNode->KeyCount; ui++ )
{
i = hb_mixKeyCompare( pTag, MIX_KEY( pTag, pNode, ui ), pKey, uiLen );
if ( i >= 0 )
{
break;
}
}
if ( i == 0 || pNode->Leaf )
break;
else
pNode = pNode->Child[ ui ];
}
if ( fValidKey && ui >= pNode->KeyCount )
{
/* unsuccessful find always finds position in leaf */
while ( pNode->Parent && pNode->Parent->Child[ pNode->Parent->KeyCount ] == pNode )
pNode = pNode->Parent;
if ( pNode->Parent )
{
for ( ui = 0; ui < pNode->Parent->KeyCount; ui++ )
{
if ( pNode->Parent->Child[ ui ] == pNode )
{
pNode = pNode->Parent;
break;
}
}
}
else
{
ui = pNode->KeyCount + 1; /* EOF */
}
}
* ppNode = pNode;
* puiPos = ui;
return i;
}
static void hb_mixTagSetCurrent( PMIXTAG pTag, PMIXNODE pNode, unsigned int uiPos )
{
if ( uiPos < pNode->KeyCount )
{
pTag->CurNode = pNode;
pTag->CurPos = uiPos;
pTag->CurKey = MIX_KEY( pTag, pNode, uiPos );
pTag->fEof = FALSE;
}
else
{
pTag->fEof = TRUE;
}
}
static BOOL hb_mixTagRefreshKey( PMIXTAG pTag )
{
SQLMIXAREAP pArea;
pArea = pTag->pArea;
if ( pArea->sqlarea.lpdbPendingRel )
SELF_FORCEREL( ( AREAP ) pArea );
if ( ! pArea->sqlarea.fPositioned )
{
pTag->fEof = TRUE;
return FALSE;
}
else if ( pTag->fEof || pTag->CurKey->rec != pArea->sqlarea.ulRecNo )
{
PMIXKEY pKey;
PMIXNODE pNode;
unsigned int ui;
pKey = hb_mixKeyEval( NULL, pTag );
hb_mixTagFindKey( pTag, pKey, pTag->uiKeyLen, &pNode, &ui, FALSE );
hb_mixTagSetCurrent( pTag, pNode, ui );
hb_mixKeyFree( pKey );
return ! pTag->fEof && pTag->CurKey->rec == pArea->sqlarea.ulRecNo;
}
pTag->fBof = pTag->fEof = FALSE;
return TRUE;
}
static void hb_mixTagAddKeyNode( PMIXTAG pTag, PMIXNODE pNode, unsigned int uiPos, PMIXKEY pKey, PMIXNODE pChildLeft, PMIXNODE pChildRight )
{
MIX_COPY_KEYS_INTERNAL( pTag, pNode, uiPos + 1, uiPos, pNode->KeyCount - uiPos );
if ( ! pNode->Leaf )
{
MIX_COPY_CHILDS_INTERNAL( pTag, pNode, uiPos + 2, uiPos + 1, pNode->KeyCount - uiPos );
pNode->Child[ uiPos ] = pChildLeft;
pNode->Child[ uiPos + 1 ] = pChildRight;
pChildLeft->Parent = pNode;
pChildRight->Parent = pNode;
}
MIX_ASSIGN_KEY( pTag, pNode, uiPos, pKey );
pNode->KeyCount++;
}
static void hb_mixTagAddKeyPos( PMIXTAG pTag, PMIXNODE pNode, unsigned int uiPos, PMIXKEY pKey, PMIXNODE pChildLeft, PMIXNODE pChildRight )
{
PMIXNODE pNewNode;
unsigned int j, k;
if ( pNode->KeyCount < MIX_NODE_ORDER )
{
hb_mixTagAddKeyNode( pTag, pNode, uiPos, pKey, pChildLeft, pChildRight );
return;
}
#ifdef USE_SIBLINGS
/* Try use siblings, if leaf node is full */
if ( pNode->Leaf && pNode->Parent )
{
j = hb_mixTagNodeParentIndex( pNode );
if ( j > 0 && pNode->Parent->Child[ j - 1 ]->KeyCount < MIX_NODE_ORDER )
{
MIX_COPY_KEYS_EXTERNAL( pTag, pNode->Parent->Child[ j - 1 ], pNode->Parent->Child[ j - 1 ]->KeyCount, pNode->Parent, j - 1, 1 );
pNode->Parent->Child[ j - 1 ]->KeyCount++;
if ( uiPos == 0 )
{
MIX_ASSIGN_KEY( pTag, pNode->Parent, j - 1, pKey );
pNode->Parent->Key[ j - 1 ] = pKey;
}
else
{
MIX_COPY_KEYS_EXTERNAL( pTag, pNode->Parent, j - 1, pNode, 0 , 1 );
uiPos--;
MIX_COPY_KEYS_INTERNAL( pTag, pNode, 0, 1, uiPos );
MIX_ASSIGN_KEY( pTag, pNode, uiPos, pKey );
}
return;
}
else if ( j < pNode->Parent->KeyCount && pNode->Parent->Child[ j + 1 ]->KeyCount < MIX_NODE_ORDER )
{
MIX_COPY_KEYS_INTERNAL( pTag, pNode->Parent->Child[ j + 1 ], 1, 0, pNode->Parent->Child[ j + 1 ]->KeyCount );
MIX_COPY_KEYS_EXTERNAL( pTag, pNode->Parent->Child[ j + 1 ], 0, pNode->Parent, j, 1 );
pNode->Parent->Child[ j + 1 ]->KeyCount++;
if ( uiPos == MIX_NODE_ORDER )
{
MIX_ASSIGN_KEY( pTag, pNode->Parent, j, pKey );
}
else
{
MIX_COPY_KEYS_EXTERNAL( pTag, pNode->Parent, j, pNode, MIX_NODE_ORDER - 1, 1 );
MIX_COPY_KEYS_INTERNAL( pTag, pNode, uiPos + 1, uiPos, MIX_NODE_ORDER - uiPos - 1 );
MIX_ASSIGN_KEY( pTag, pNode, uiPos, pKey );
}
return;
}
}
#endif /* USE_SIBLINGS */
/* Create new node */
pNewNode = hb_mixTagCreateNode( pTag, pNode->Leaf );
/* Move half of items to new node */
k = MIX_NODE_ORDER / 2 + ( ( uiPos <= MIX_NODE_ORDER / 2 ) ? 0 : 1 );
MIX_COPY_KEYS_EXTERNAL( pTag, pNewNode, 0, pNode, k, MIX_NODE_ORDER - k );
if ( ! pNode->Leaf )
{
MIX_COPY_CHILDS_EXTERNAL( pTag, pNewNode, 1, pNode, k + 1, MIX_NODE_ORDER - k );
for ( j = 1; j <= MIX_NODE_ORDER - k; j++ )
{
pNewNode->Child[ j ]->Parent = pNewNode; // Do NOT forget to re-parent
}
}
pNode->KeyCount = k;
pNewNode->KeyCount = MIX_NODE_ORDER - k;
/* Insert new item to the left node or right node */
if ( uiPos <= MIX_NODE_ORDER / 2 )
hb_mixTagAddKeyNode( pTag, pNode, uiPos, pKey, pChildLeft, pChildRight );
else
hb_mixTagAddKeyNode( pTag, pNewNode, uiPos - MIX_NODE_ORDER / 2 - 1, pKey, pChildLeft, pChildRight );
/* Assign the leftmost child of the new node */
if ( ! pNode->Leaf )
{
pNewNode->Child[ 0 ] = pNode->Child[ pNode->KeyCount ];
pNewNode->Child[ 0 ]->Parent = pNewNode;
}
pNode->KeyCount--;
/* Move middle (last+1 in first node) item up */
if ( pNode->Parent )
{
hb_mixTagAddKeyPos( pTag, pNode->Parent, hb_mixTagNodeParentIndex( pNode ),
MIX_KEY( pTag, pNode, pNode->KeyCount ), pNode, pNewNode );
}
else
{
pTag->Root = hb_mixTagCreateNode( pTag, 0 );
hb_mixTagAddKeyNode( pTag, pTag->Root, 0, MIX_KEY( pTag, pNode, pNode->KeyCount ), pNode, pNewNode );
}
}
static BOOL hb_mixTagAddKey( PMIXTAG pTag, PMIXKEY pKey )
{
PMIXNODE pNode;
unsigned int ui;
int i;
i = hb_mixTagFindKey( pTag, pKey, pTag->uiKeyLen, &pNode, &ui, FALSE );
/* Key can not be duplicated */
if ( ! i )
return FALSE;
hb_mixTagAddKeyPos( pTag, pNode, ui, pKey, NULL, NULL );
return TRUE;
}
static void hb_mixTagDelKeyNode( PMIXTAG pTag, PMIXNODE pNode, unsigned int uiPos )
{
MIX_COPY_KEYS_INTERNAL( pTag, pNode, uiPos, uiPos + 1, pNode->KeyCount - uiPos - 1 );
if ( ! pNode->Leaf )
{
MIX_COPY_CHILDS_INTERNAL( pTag, pNode, uiPos, uiPos + 1, pNode->KeyCount - uiPos );
}
pNode->KeyCount--;
}
static void hb_mixTagNodeAdjust( PMIXTAG pTag, PMIXNODE pNode )
{
unsigned int i, j;
PMIXNODE pParent, pSibling;
while ( 1 )
{
if ( pNode->KeyCount >= MIX_NODE_ORDER / 2 )
return;
/* Check siblings */
if ( pNode->Parent )
{
pParent = pNode->Parent;
j = hb_mixTagNodeParentIndex( pNode );
if ( j > 0 && pParent->Child[ j - 1 ]->KeyCount > MIX_NODE_ORDER / 2 )
{
/* Borrow from left */
pSibling = pParent->Child[ j - 1 ];
/* It could not be pNode->Child[ 0 ] if it is not Leaf!!! */
hb_mixTagAddKeyNode( pTag, pNode, 0, MIX_KEY( pTag, pParent, j - 1 ), pSibling->Child[ pSibling->KeyCount ], pNode->Child[ 0 ] );
MIX_COPY_KEYS_EXTERNAL( pTag, pParent, j - 1, pSibling, pSibling->KeyCount - 1, 1 );
pSibling->KeyCount--;
return;
}
else if ( j < pParent->KeyCount && pParent->Child[ j + 1 ]->KeyCount > MIX_NODE_ORDER / 2 )
{
/* Borrow from right */
pSibling = pParent->Child[ j + 1 ];
hb_mixTagAddKeyNode( pTag, pNode, pNode->KeyCount, MIX_KEY( pTag, pParent, j ), pNode->Child[ pNode->KeyCount ], pSibling->Child[ 0 ] );
MIX_COPY_KEYS_EXTERNAL( pTag, pParent, j, pSibling, 0, 1 );
hb_mixTagDelKeyNode( pTag, pSibling, 0 );
return;
}
else if ( j > 0 )
{
/* Join with left */
pSibling = pParent->Child[ j - 1 ];
MIX_COPY_KEYS_EXTERNAL( pTag, pSibling, pSibling->KeyCount, pParent, j - 1, 1 );
pSibling->KeyCount++;
MIX_COPY_KEYS_EXTERNAL( pTag, pSibling, pSibling->KeyCount, pNode, 0, pNode->KeyCount );
if ( pNode->Leaf )
{
pSibling->KeyCount += pNode->KeyCount;
}
else
{
MIX_COPY_CHILDS_EXTERNAL( pTag, pSibling, pSibling->KeyCount, pNode, 0, pNode->KeyCount );
for ( i = 0; i < pNode->KeyCount; i++ )
{
pSibling->Child[ pSibling->KeyCount++ ]->Parent = pSibling;
}
pSibling->Child[ pSibling->KeyCount ] = pNode->Child[ i ];
pSibling->Child[ pSibling->KeyCount ]->Parent = pSibling;
}
hb_xfree( pNode );
pParent->Child[ j ] = pSibling;
hb_mixTagDelKeyNode( pTag, pParent, j - 1 );
pNode = pParent;
}
else if ( j < pParent->KeyCount )
{
/* Join with right */
pSibling = pParent->Child[ j + 1 ];
MIX_COPY_KEYS_EXTERNAL( pTag, pNode, pNode->KeyCount, pParent, j, 1 );
pNode->KeyCount++;
MIX_COPY_KEYS_EXTERNAL( pTag, pNode, pNode->KeyCount, pSibling, 0, pSibling->KeyCount );
if ( pNode->Leaf )
{
pNode->KeyCount += pSibling->KeyCount;
}
else
{
MIX_COPY_CHILDS_EXTERNAL( pTag, pNode, pNode->KeyCount, pSibling, 0, pSibling->KeyCount );
for ( i = 0; i < pSibling->KeyCount; i++ )
{
pNode->Child[ pNode->KeyCount++ ]->Parent = pNode;
}
pNode->Child[ pNode->KeyCount ] = pSibling->Child[ i ];
pNode->Child[ pNode->KeyCount ]->Parent = pNode;
}
hb_xfree( pSibling );
pParent->Child[ j + 1 ] = pNode;
hb_mixTagDelKeyNode( pTag, pParent, j );
pNode = pParent;
}
}
else
{
/* Adjust root */
if ( ! pNode->KeyCount && ! pNode->Leaf )
{
pTag->Root = pNode->Child[ 0 ];
pTag->Root->Parent = NULL;
hb_xfree( pNode );
}
return;
}
}
}
static void hb_mixTagDelKeyPos( PMIXTAG pTag, PMIXNODE pNode, unsigned int uiPos )
{
if ( pNode->Leaf )
{
hb_mixTagDelKeyNode( pTag, pNode, uiPos );
hb_mixTagNodeAdjust( pTag, pNode );
}
else
{
PMIXNODE pLeaf;
pLeaf = pNode->Child[ uiPos + 1 ];
while ( ! pLeaf->Leaf )
{
pLeaf = pLeaf->Child[ 0 ];
}
MIX_COPY_KEYS_EXTERNAL( pTag, pNode, uiPos, pLeaf, 0, 1 );
hb_mixTagDelKeyNode( pTag, pLeaf, 0 );
hb_mixTagNodeAdjust( pTag, pLeaf );
}
}
static BOOL hb_mixTagDelKey( PMIXTAG pTag, PMIXKEY pKey )
{
PMIXNODE pNode;
unsigned int ui;
int i;
i = hb_mixTagFindKey( pTag, pKey, pTag->uiKeyLen, &pNode, &ui, FALSE );
if ( i )
return FALSE;
hb_mixTagDelKeyPos( pTag, pNode, ui );
return 1;
}
static BYTE* hb_mixBuildSortTable( PHB_CODEPAGE pCodepage )
{
BYTE* pSortTable;
const BYTE* pChars;
int i, j;
BYTE c;
pSortTable = ( BYTE * ) hb_xalloc( 256 );
if ( pCodepage && pCodepage->sort )
{
pChars = pCodepage->sort;
c = 0;
for ( i = 0; i < 256; i++ )
{
for ( j = 0; j < 256; j++ )
{
if ( pChars[ j ] == ( BYTE ) i )
{
pSortTable[ j ] = c;
c++;
}
}
}
}
else
{
for ( i = 0; i < 256; i++ )
pSortTable[ i ] = ( BYTE ) i;
}
return pSortTable;
}
static PMIXTAG hb_mixTagCreate( const char* szTagName, PHB_ITEM pKeyExpr, PHB_ITEM pKeyItem, PHB_ITEM pForItem, PHB_ITEM pWhileItem, BYTE bType, unsigned int uiKeyLen, SQLMIXAREAP pArea )
{
PMIXTAG pTag;
PMIXKEY pKey = NULL;
LPDBORDERCONDINFO pOrdCondInfo = pArea->sqlarea.area.lpdbOrdCondInfo;
ULONG ulStartRec, ulNextCount = 0;
LONG lStep = 0;
PHB_ITEM pItem, pEvalItem = NULL;
pTag = ( PMIXTAG ) hb_xgrab( sizeof( MIXTAG ) );
memset( pTag, 0, sizeof( MIXTAG ) );
pTag->pArea = pArea;
pTag->szName = ( char * ) hb_xgrab( MIX_MAXTAGNAMELEN + 1 );
hb_strncpyUpperTrim( pTag->szName, szTagName, MIX_MAXTAGNAMELEN );
pTag->szKeyExpr = ( char * ) hb_xgrab( hb_itemGetCLen( pKeyExpr ) + 1 );
hb_strncpyTrim( pTag->szKeyExpr, hb_itemGetCPtr( pKeyExpr ), hb_itemGetCLen( pKeyExpr ) );
/* TODO: FOR expresion */
pTag->szForExpr = NULL;
pTag->pKeyItem = pKeyItem;
pTag->pForItem = pForItem;
pTag->bType = bType;
pTag->uiKeyLen = uiKeyLen;
pTag->uiTotalLen = sizeof( MIXKEY ) + pTag->uiKeyLen;
/* Use national support */
if ( bType == 'C' )
{
if( pArea->sqlarea.area.cdPage && pArea->sqlarea.area.cdPage->sort && !pArea->pSortTable )
{
pArea->pSortTable = hb_mixBuildSortTable( pArea->sqlarea.area.cdPage );
}
pTag->pSortTable = pArea->pSortTable;
}
pTag->Root = hb_mixTagCreateNode( pTag, TRUE );
ulStartRec = 0;
if ( pOrdCondInfo )
{
pEvalItem = pOrdCondInfo->itmCobEval;
lStep = pOrdCondInfo->lStep;
}
if ( ! pOrdCondInfo || pOrdCondInfo->fAll )
{
pArea->pTag = NULL;
}
else
{
if ( pOrdCondInfo->itmRecID )
ulStartRec = hb_itemGetNL( pOrdCondInfo->itmRecID );
if ( ulStartRec )
{
ulNextCount = 1;
}
else if ( pOrdCondInfo->fRest || pOrdCondInfo->lNextCount > 0 )
{
if ( pOrdCondInfo->itmStartRecID )
ulStartRec = hb_itemGetNL( pOrdCondInfo->itmStartRecID );
if ( !ulStartRec )
ulStartRec = pArea->sqlarea.ulRecNo;
if ( pArea->sqlarea.area.lpdbOrdCondInfo->lNextCount > 0 )
ulNextCount = pOrdCondInfo->lNextCount;
}
else if ( ! pOrdCondInfo->fUseCurrent )
{
pArea->pTag = NULL;
}
}
if ( ulStartRec == 0 && pArea->pTag == NULL )
ulStartRec = 1;
if ( ulStartRec )
{
SELF_GOTO( (AREAP) pArea, ulStartRec );
}
else
{
SELF_GOTOP( (AREAP) pArea );
}
while ( ! pArea->sqlarea.area.fEof )
{
if ( pEvalItem )
{
if ( lStep >= pOrdCondInfo->lStep )
{
lStep = 0;
if ( ! hb_mixEvalCond( NULL, pEvalItem ) )
break;
}
++lStep;
}
if ( pWhileItem && ! hb_mixEvalCond( NULL, pWhileItem ) )
{
break;
}
if ( pForItem == NULL || hb_mixEvalCond( NULL, pForItem ) )
{
pItem = hb_vmEvalBlockOrMacro( pKeyItem );
pKey = hb_mixKeyPutItem( pKey, pItem, pArea->sqlarea.ulRecNo, pTag );
hb_mixTagAddKey( pTag, pKey );
}
if ( ulNextCount )
{
ulNextCount--;
if ( !ulNextCount ) break;
}
if ( SELF_SKIPRAW( ( AREAP ) pArea, 1 ) == HB_FAILURE )
break;
}
if ( pKey )
hb_mixKeyFree( pKey );
return pTag;
}
static void hb_mixTagDestroyNode( PMIXNODE pNode )
{
if ( ! pNode->Leaf )
{
unsigned int ui;
for ( ui = 0; ui <= pNode->KeyCount; ui++ )
hb_mixTagDestroyNode( pNode->Child[ ui ] );
}
hb_xfree( pNode );
}
static void hb_mixTagDestroy( PMIXTAG pTag )
{
if ( pTag->szName )
hb_xfree( pTag->szName );
if ( pTag->szKeyExpr )
hb_xfree( pTag->szKeyExpr );
if ( pTag->szForExpr )
hb_xfree( pTag->szForExpr );
if ( pTag->pKeyItem )
hb_vmDestroyBlockOrMacro( pTag->pKeyItem );
if ( pTag->pForItem )
hb_vmDestroyBlockOrMacro( pTag->pForItem );
if ( pTag->Root )
{
hb_mixTagDestroyNode( pTag->Root );
}
hb_xfree( pTag );
}
static void hb_mixTagGoTop( PMIXTAG pTag )
{
PMIXNODE pNode;
pNode = pTag->Root;
while ( ! pNode->Leaf )
{
pNode = pNode->Child[ 0 ];
}
if ( ! pNode->KeyCount )
{
pTag->fEof = TRUE;
return;
}
pTag->fEof = FALSE;
pTag->CurNode = pNode;
pTag->CurPos = 0;
pTag->CurKey = MIX_KEY( pTag, pTag->CurNode, 0 );
}
static void hb_mixTagGoBottom( PMIXTAG pTag )
{
PMIXNODE pNode;
pNode = pTag->Root;
while ( ! pNode->Leaf )
{
pNode = pNode->Child[ pNode->KeyCount ];
}
if ( ! pNode->KeyCount )
{
pTag->fEof = TRUE;
return;
}
pTag->fEof = FALSE;
pTag->CurNode = pNode;
pTag->CurPos = pNode->KeyCount - 1;
pTag->CurKey = MIX_KEY( pTag, pTag->CurNode, pTag->CurPos );
}
static void hb_mixTagSkip( PMIXTAG pTag, LONG lSkip )
{
PMIXNODE pNode, pNode2;
unsigned int uiPos, uiPos2;
pNode = pTag->CurNode;
uiPos = pTag->CurPos;
/* printf("hb_mixTagSkip: CurNode=%p, CurPos=%d lSkip=%d\n", pNode, uiPos, lSkip ); */
if ( lSkip > 0 )
{
pTag->fBof = FALSE;
while ( ! pTag->fEof && lSkip > 0 )
{
if ( pNode->Leaf )
{
if ( (LONG) (pNode->KeyCount - 1 - uiPos) >= lSkip )
{
uiPos += lSkip;
lSkip = 0;
}
else if ( pNode->KeyCount - 1 > uiPos )
{
lSkip -= (LONG) (pNode->KeyCount - 1 - uiPos);
uiPos = pNode->KeyCount - 1;
}
if ( lSkip )
{
do {
if ( pNode->Parent )
uiPos = hb_mixTagNodeParentIndex( pNode );
pNode = pNode->Parent;
} while ( pNode && uiPos == pNode->KeyCount );
if ( pNode )
{
lSkip--;
}
else
{
pTag->fEof = TRUE;
}
}
}
else
{
pNode = pNode->Child[ uiPos + 1 ];
while ( ! pNode->Leaf )
{
pNode = pNode->Child[ 0 ];
}
uiPos = 0;
lSkip--;
}
}
}
else if ( lSkip < 0 )
{
lSkip = - lSkip;
/*
This is not needed. skip(-1) from Eof is processed inside sqlmixSkipRaw
if ( pTag->fEof )
{
hb_mixTagGoBottom( pTag );
lSkip--;
pTag->fBof = pTag->fEof;
}
*/
pTag->fBof = pTag->fEof;
while ( ! pTag->fBof && lSkip > 0 )
{
if ( pNode->Leaf )
{
if ( (LONG) uiPos >= lSkip )
{
uiPos -= lSkip;
lSkip = 0;
}
else if ( uiPos )
{
lSkip -= uiPos;
uiPos = 0;
}
if ( lSkip )
{
pNode2 = pNode;
uiPos2 = uiPos;
do {
if ( pNode->Parent )
uiPos = hb_mixTagNodeParentIndex( pNode );
pNode = pNode->Parent;
} while ( pNode && uiPos == 0 );
if ( pNode )
{
uiPos--;
lSkip--;
}
else
{
pNode = pNode2;
uiPos = uiPos2;
pTag->fBof = TRUE;
}
}
}
else
{
do
{
pNode = pNode->Child[ uiPos ];
uiPos = pNode->KeyCount;
}
while ( ! pNode->Leaf );
uiPos--;
lSkip--;
}
}
}
if ( ! pTag->fEof )
{
pTag->CurNode = pNode;
pTag->CurPos = uiPos;
pTag->CurKey = MIX_KEY( pTag, pNode, uiPos );
}
}
/* -------------------------- Misc functions ---------------------------- */
/* hb_mix*() */
static PMIXTAG hb_mixFindTag( SQLMIXAREAP pArea, PHB_ITEM pOrder )
{
PMIXTAG pTag;
if ( HB_IS_NUMBER( pOrder ) )
{
int iOrder, iCurr = 0;
iOrder = hb_itemGetNI( pOrder );
pTag = pArea->pTagList;
while ( pTag && iOrder != ++iCurr )
{
pTag = pTag->pNext;
}
}
else
{
char szTag[ MIX_MAXTAGNAMELEN + 1 ];
hb_strncpyUpperTrim( szTag, hb_itemGetCPtr( pOrder ), MIX_MAXTAGNAMELEN );
pTag = pArea->pTagList;
while ( pTag && hb_stricmp( szTag, pTag->szName ) )
{
pTag = pTag->pNext;
}
}
return pTag;
}
/*=======================================================================*/
static ULONG hb_mixTagNodeKeyCount( PMIXNODE pNode )
{
ULONG ulKeyCount;
unsigned int ui;
ulKeyCount = pNode->KeyCount;
if ( ! pNode->Leaf )
{
for ( ui = 0; ui <= pNode->KeyCount; ui++ )
ulKeyCount += hb_mixTagNodeKeyCount( pNode->Child[ ui ] );
}
return ulKeyCount;
}
static BOOL hb_mixCheckRecordFilter( SQLMIXAREAP pArea, ULONG ulRecNo )
{
BOOL lResult = FALSE;
if ( pArea->sqlarea.area.dbfi.itmCobExpr || hb_setGetDeleted() )
{
if ( pArea->sqlarea.ulRecNo != ulRecNo || pArea->sqlarea.lpdbPendingRel )
SELF_GOTO( ( AREAP ) pArea, ulRecNo );
if ( hb_setGetDeleted() )
SUPER_DELETED( ( AREAP ) pArea, &lResult );
if ( !lResult && pArea->sqlarea.area.dbfi.itmCobExpr )
{
PHB_ITEM pResult = hb_vmEvalBlock( pArea->sqlarea.area.dbfi.itmCobExpr );
lResult = HB_IS_LOGICAL( pResult ) && !hb_itemGetL( pResult );
}
}
return !lResult;
}
static ULONG hb_mixDBOIKeyCount( PMIXTAG pTag, BOOL fFilter )
{
ULONG ulKeyCount;
if ( ! pTag )
return 0;
if ( fFilter && pTag->pArea->sqlarea.area.dbfi.fFilter )
{
PMIXNODE pNode = pTag->CurNode;
unsigned int uiPos = pTag->CurPos;
ULONG ulRecNo = pTag->pArea->sqlarea.ulRecNo;
ulKeyCount = 0;
hb_mixTagGoTop( pTag );
while ( ! pTag->fEof )
{
if ( hb_mixCheckRecordFilter( pTag->pArea, pTag->CurKey->rec ) )
ulKeyCount++;
hb_mixTagSkip( pTag, 1 );
}
hb_mixTagSetCurrent( pTag, pNode, uiPos );
SELF_GOTO( (AREAP) pTag->pArea, ulRecNo );
}
else
{
ulKeyCount = hb_mixTagNodeKeyCount( pTag->Root );
}
return ulKeyCount;
}
static ULONG hb_mixDBOIKeyNo( PMIXTAG pTag, BOOL fFilter )
{
ULONG ulKeyCount;
if ( ! pTag )
return 0;
if ( fFilter )
ulKeyCount = 0;
else
{
PMIXNODE pNode = pTag->CurNode;
unsigned int ui, uiPos = pTag->CurPos;
ulKeyCount = 1;
while ( pNode )
{
ulKeyCount += uiPos;
if ( ! pNode->Leaf )
{
for ( ui = 0; ui < uiPos; ui++ )
ulKeyCount += hb_mixTagNodeKeyCount( pNode->Child[ ui ] );
}
pNode = pNode->Parent;
if ( pNode )
uiPos = hb_mixTagNodeParentIndex( pNode );
}
}
return ulKeyCount;
}
/*
=======================================================================
SQLMIX RDD METHODS
=======================================================================
*/
static HB_ERRCODE sqlmixGoBottom( SQLMIXAREAP pArea )
{
HB_ERRCODE retval;
if ( SELF_GOCOLD( ( AREAP ) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( ! pArea->pTag )
return SUPER_GOBOTTOM( ( AREAP ) pArea );
if ( pArea->sqlarea.lpdbPendingRel && pArea->sqlarea.lpdbPendingRel->isScoped )
SELF_FORCEREL( ( AREAP ) pArea );
hb_mixTagGoBottom( pArea->pTag );
pArea->sqlarea.area.fTop = FALSE;
pArea->sqlarea.area.fBottom = TRUE;
retval = SELF_GOTO( ( AREAP ) pArea, pArea->pTag->CurKey ? pArea->pTag->CurKey->rec : 0 );
if ( retval != HB_FAILURE && pArea->sqlarea.fPositioned )
retval = SELF_SKIPFILTER( ( AREAP ) pArea, -1 );
return retval;
}
static HB_ERRCODE sqlmixGoTop( SQLMIXAREAP pArea )
{
HB_ERRCODE retval;
if ( SELF_GOCOLD( ( AREAP ) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( ! pArea->pTag )
return SUPER_GOTOP( ( AREAP ) pArea );
if ( pArea->sqlarea.lpdbPendingRel && pArea->sqlarea.lpdbPendingRel->isScoped )
SELF_FORCEREL( ( AREAP ) pArea );
hb_mixTagGoTop( pArea->pTag );
pArea->sqlarea.area.fTop = TRUE;
pArea->sqlarea.area.fBottom = FALSE;
retval = SELF_GOTO( ( AREAP ) pArea, pArea->pTag->CurKey ? pArea->pTag->CurKey->rec : 0 );
if ( retval != HB_FAILURE && pArea->sqlarea.fPositioned )
retval = SELF_SKIPFILTER( ( AREAP ) pArea, -1 );
return retval;
}
static HB_ERRCODE sqlmixSeek( SQLMIXAREAP pArea, BOOL fSoftSeek, PHB_ITEM pItem, BOOL fFindLast )
{
if ( SELF_GOCOLD( ( AREAP ) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( ! pArea->pTag )
{
sqlmixErrorRT( pArea, EG_NOORDER, 1201, NULL, 0, EF_CANDEFAULT );
return HB_FAILURE;
}
else
{
PMIXKEY pKey;
HB_ERRCODE retval = HB_SUCCESS;
BOOL fEOF;
PMIXTAG pTag = pArea->pTag;
PMIXNODE pNode;
unsigned int uiKeyLen, ui;
if ( pArea->sqlarea.lpdbPendingRel && pArea->sqlarea.lpdbPendingRel->isScoped )
SELF_FORCEREL( ( AREAP ) pArea );
pArea->sqlarea.area.fTop = pArea->sqlarea.area.fBottom = FALSE;
pArea->sqlarea.area.fEof = FALSE;
pKey = hb_mixKeyPutItem( NULL, pItem, fFindLast ? (ULONG) -1 : 0, pTag );
uiKeyLen = pTag->uiKeyLen;
if ( pTag->bType == 'C' )
{
uiKeyLen = ( unsigned int ) hb_itemGetCLen( pItem );
if ( uiKeyLen > pTag->uiKeyLen )
uiKeyLen = pTag->uiKeyLen;
}
hb_mixTagFindKey( pTag, pKey, uiKeyLen, &pNode, &ui, TRUE );
hb_mixTagSetCurrent( pTag, pNode, ui );
if ( fFindLast )
{
if ( pTag->fEof )
hb_mixTagGoBottom( pTag );
else
hb_mixTagSkip( pTag, -1 );
pArea->sqlarea.area.fFound = ! pTag->fEof && ( uiKeyLen == 0 || memcmp( pTag->CurKey->val, pKey->val, (ULONG) uiKeyLen ) == 0 );
if ( ! pArea->sqlarea.area.fFound )
hb_mixTagSetCurrent( pTag, pNode, ui );
}
else
{
pArea->sqlarea.area.fFound = ! pTag->fEof && ( uiKeyLen == 0 || memcmp( pTag->CurKey->val, pKey->val, (ULONG) uiKeyLen ) == 0 );
}
fEOF = pTag->fEof;
if ( !fEOF )
{
retval = SELF_GOTO( ( AREAP ) pArea, pTag->CurKey->rec );
if ( retval != HB_FAILURE && pArea->sqlarea.fPositioned )
{
retval = SELF_SKIPFILTER( ( AREAP ) pArea, fFindLast ? -1 : 1 );
if ( retval != HB_FAILURE && pArea->sqlarea.fPositioned )
{
pArea->sqlarea.area.fFound = ( uiKeyLen == 0 || memcmp( pTag->CurKey->val, pKey->val, (ULONG) uiKeyLen ) == 0 );
if ( ! pArea->sqlarea.area.fFound && ! fSoftSeek )
fEOF = TRUE;
}
}
}
if ( retval != HB_FAILURE && fEOF )
{
retval = SELF_GOTO( ( AREAP ) pArea, 0 );
}
pArea->sqlarea.area.fBof = FALSE;
hb_mixKeyFree( pKey );
return retval;
}
}
static HB_ERRCODE sqlmixSkipRaw( SQLMIXAREAP pArea, LONG lToSkip )
{
PMIXTAG pTag = pArea->pTag;
BOOL fOut = FALSE;
if ( SELF_GOCOLD( ( AREAP ) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( ! pTag || lToSkip == 0 )
return SUPER_SKIPRAW( ( AREAP ) pArea, lToSkip );
if ( pArea->sqlarea.lpdbPendingRel )
SELF_FORCEREL( ( AREAP ) pArea );
if ( ! hb_mixTagRefreshKey( pTag ) )
{
if ( lToSkip > 0 || pArea->sqlarea.fPositioned )
fOut = TRUE;
else
{
hb_mixTagGoBottom( pTag );
fOut = pTag->fEof;
lToSkip++;
}
}
if ( ! fOut )
hb_mixTagSkip( pTag, lToSkip );
if ( SELF_GOTO( ( AREAP ) pArea, ( pTag->fEof || fOut ) ? 0 : pTag->CurKey->rec ) != HB_SUCCESS )
return HB_FAILURE;
pArea->sqlarea.area.fEof = pTag->fEof;
pArea->sqlarea.area.fBof = pTag->fBof;
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixGoCold( SQLMIXAREAP pArea )
{
BOOL fRecordChanged = pArea->sqlarea.fRecordChanged;
BOOL fAppend = pArea->sqlarea.fAppend;
if ( SUPER_GOCOLD( ( AREAP ) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( fRecordChanged && pArea->pTagList )
{
PMIXTAG pTag;
PMIXKEY pKey = NULL;
BOOL fAdd, fDel;
LPDBRELINFO lpdbPendingRel;
lpdbPendingRel = pArea->sqlarea.lpdbPendingRel;
pArea->sqlarea.lpdbPendingRel = NULL;
pTag = pArea->pTagList;
while ( pTag )
{
if ( ! pTag->fCustom )
{
pKey = hb_mixKeyEval( pKey, pTag );
/* printf( "sqlmixGoCold NEWKEY:%s rec:%d\n", pKey->val, pKey->rec); */
if ( pTag->pForItem != NULL )
fAdd = hb_mixEvalCond( pArea, pTag->pForItem );
else
fAdd = TRUE;
if ( fAppend )
fDel = FALSE;
else
{
if ( hb_mixKeyCompare( pTag, pKey, pTag->HotKey, pTag->uiKeyLen ) == 0 )
{
fDel = !fAdd && pTag->HotFor;
fAdd = fAdd && !pTag->HotFor;
}
else
{
fDel = pTag->HotFor;
}
}
if ( fDel )
hb_mixTagDelKey( pTag, pTag->HotKey );
if ( fAdd )
hb_mixTagAddKey( pTag, pKey );
}
pTag = pTag->pNext;
}
if ( pKey )
hb_mixKeyFree( pKey );
pArea->sqlarea.lpdbPendingRel = lpdbPendingRel;
}
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixGoHot( SQLMIXAREAP pArea )
{
PMIXTAG pTag;
/*
if ( pArea->fRecordChanged )
printf( "sqlmixGoHot: multiple marking buffer as hot." );
*/
if ( SUPER_GOHOT( (AREAP) pArea ) == HB_FAILURE )
return HB_FAILURE;
pTag = pArea->pTagList;
while ( pTag )
{
if ( !pTag->fCustom )
{
pTag->HotKey = hb_mixKeyEval( pTag->HotKey, pTag );
pTag->HotFor = pTag->pForItem == NULL || hb_mixEvalCond( pArea, pTag->pForItem );
}
pTag = pTag->pNext;
}
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixClose( SQLMIXAREAP pArea )
{
if ( SELF_GOCOLD( (AREAP) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( SUPER_CLOSE( (AREAP) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( SELF_ORDLSTCLEAR( (AREAP) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( pArea->pSortTable )
hb_xfree( pArea->pSortTable );
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixStructSize( SQLMIXAREAP pArea, USHORT* StructSize )
{
HB_SYMBOL_UNUSED( pArea );
* StructSize = sizeof( SQLMIXAREA );
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixOrderListClear( SQLMIXAREAP pArea )
{
PMIXTAG pTag;
while ( pArea->pTagList )
{
pTag = pArea->pTagList;
pArea->pTagList = pTag->pNext;
hb_mixTagDestroy( pTag );
}
pArea->pTag = NULL;
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixOrderListFocus( SQLMIXAREAP pArea, LPDBORDERINFO pOrderInfo )
{
if ( pArea->pTag )
{
pOrderInfo->itmResult = hb_itemPutC( pOrderInfo->itmResult, pArea->pTag->szName );
}
if ( pOrderInfo->itmOrder )
{
pArea->pTag = hb_mixFindTag( pArea, pOrderInfo->itmOrder );
}
return pArea->pTag ? HB_SUCCESS : HB_FAILURE;
}
static HB_ERRCODE sqlmixOrderCreate( SQLMIXAREAP pArea, LPDBORDERCREATEINFO pOrderInfo )
{
PMIXTAG pTagNew, pTag;
PHB_ITEM pKeyItem, pForItem = NULL, pWhileItem = NULL, pResult;
ULONG ulRecNo;
USHORT uiLen;
BYTE bType;
/* Obtain key codeblock */
if ( pOrderInfo->itmCobExpr )
{
pKeyItem = hb_itemNew( pOrderInfo->itmCobExpr );
}
else
{
if ( SELF_COMPILE( (AREAP) pArea, hb_itemGetCPtr( pOrderInfo->abExpr ) ) == HB_FAILURE )
return HB_FAILURE;
pKeyItem = pArea->sqlarea.area.valResult;
pArea->sqlarea.area.valResult = NULL;
}
/* Test key codeblock on EOF */
ulRecNo = pArea->sqlarea.ulRecNo;
SELF_GOTO( (AREAP) pArea, 0 );
if ( SELF_EVALBLOCK( (AREAP) pArea, pKeyItem ) == HB_FAILURE )
{
hb_vmDestroyBlockOrMacro( pKeyItem );
SELF_GOTO( (AREAP) pArea, ulRecNo );
return HB_FAILURE;
}
pResult = pArea->sqlarea.area.valResult;
pArea->sqlarea.area.valResult = NULL;
switch ( hb_itemType( pResult ) )
{
case HB_IT_STRING:
case HB_IT_STRING | HB_IT_MEMO:
bType = 'C';
uiLen = (USHORT) hb_itemGetCLen( pResult );
if ( uiLen > MIX_MAXKEYLEN ) uiLen = MIX_MAXKEYLEN;
break;
case HB_IT_INTEGER:
case HB_IT_LONG:
case HB_IT_DOUBLE:
bType = 'N';
uiLen = 8;
break;
case HB_IT_DATE:
bType = 'D';
uiLen = 8;
break;
case HB_IT_LOGICAL:
bType = 'L';
uiLen = 1;
break;
default:
bType = 'U';
uiLen = 0;
}
hb_itemRelease( pResult );
if ( bType == 'U' || uiLen == 0 )
{
hb_vmDestroyBlockOrMacro( pKeyItem );
SELF_GOTO( (AREAP) pArea, ulRecNo );
sqlmixErrorRT( pArea, bType == 'U' ? EG_DATATYPE : EG_DATAWIDTH, 1026, NULL, 0, 0 );
return HB_FAILURE;
}
if ( pArea->sqlarea.area.lpdbOrdCondInfo )
{
/* Obtain FOR codeblock */
if ( pArea->sqlarea.area.lpdbOrdCondInfo->itmCobFor )
{
pForItem = hb_itemNew( pArea->sqlarea.area.lpdbOrdCondInfo->itmCobFor );
}
else if ( pArea->sqlarea.area.lpdbOrdCondInfo->abFor )
{
if ( SELF_COMPILE( (AREAP) pArea, pArea->sqlarea.area.lpdbOrdCondInfo->abFor ) == HB_FAILURE )
{
hb_vmDestroyBlockOrMacro( pKeyItem );
SELF_GOTO( (AREAP) pArea, ulRecNo );
return HB_FAILURE;
}
pForItem = pArea->sqlarea.area.valResult;
pArea->sqlarea.area.valResult = NULL;
}
/* Obtain WHILE codeblock */
if ( pArea->sqlarea.area.lpdbOrdCondInfo->itmCobWhile )
{
pWhileItem = hb_itemNew( pArea->sqlarea.area.lpdbOrdCondInfo->itmCobWhile );
}
else if ( pArea->sqlarea.area.lpdbOrdCondInfo->abWhile )
{
if ( SELF_COMPILE( (AREAP) pArea, pArea->sqlarea.area.lpdbOrdCondInfo->abWhile ) == HB_FAILURE )
{
hb_vmDestroyBlockOrMacro( pKeyItem );
if ( pForItem )
hb_vmDestroyBlockOrMacro( pForItem );
SELF_GOTO( (AREAP) pArea, ulRecNo );
return HB_FAILURE;
}
pWhileItem = pArea->sqlarea.area.valResult;
pArea->sqlarea.area.valResult = NULL;
}
}
/* Test FOR codeblock on EOF */
if ( pForItem )
{
if ( SELF_EVALBLOCK( (AREAP) pArea, pForItem ) == HB_FAILURE )
{
hb_vmDestroyBlockOrMacro( pKeyItem );
hb_vmDestroyBlockOrMacro( pForItem );
if ( pWhileItem )
hb_vmDestroyBlockOrMacro( pWhileItem );
SELF_GOTO( (AREAP) pArea, ulRecNo );
return HB_FAILURE;
}
if ( hb_itemType( pArea->sqlarea.area.valResult ) != HB_IT_LOGICAL )
{
hb_itemRelease( pArea->sqlarea.area.valResult );
pArea->sqlarea.area.valResult = 0;
hb_vmDestroyBlockOrMacro( pKeyItem );
hb_vmDestroyBlockOrMacro( pForItem );
if ( pWhileItem )
hb_vmDestroyBlockOrMacro( pWhileItem );
SELF_GOTO( (AREAP) pArea, ulRecNo );
sqlmixErrorRT( pArea, EG_DATATYPE, EDBF_INVALIDFOR, NULL, 0, 0 );
return HB_FAILURE;
}
hb_itemRelease( pArea->sqlarea.area.valResult );
pArea->sqlarea.area.valResult = 0;
}
/* TODO: WHILE condition is not tested, like in DBFCDX. Why? Compatibility with Clipper? */
SELF_GOTO( (AREAP) pArea, ulRecNo );
pTagNew = hb_mixTagCreate( pOrderInfo->atomBagName, pOrderInfo->abExpr, pKeyItem, pForItem, pWhileItem, bType, uiLen, pArea );
if ( pWhileItem )
hb_vmDestroyBlockOrMacro( pWhileItem );
/* Append the tag to the end of list */
if ( pArea->pTagList )
{
pTag = pArea->pTagList;
while ( pTag->pNext )
{
pTag = pTag->pNext;
}
pTag->pNext = pTagNew;
}
else
{
pArea->pTagList = pTagNew;
}
pArea->pTag = pTagNew;
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixOrderInfo( SQLMIXAREAP pArea, USHORT uiIndex, LPDBORDERINFO pOrderInfo )
{
PMIXTAG pTag;
USHORT uiTag = 0;
switch( uiIndex )
{
case DBOI_EVALSTEP:
pOrderInfo->itmResult = hb_itemPutNL( pOrderInfo->itmResult,
pArea->sqlarea.area.lpdbOrdCondInfo ? pArea->sqlarea.area.lpdbOrdCondInfo->lStep : 0 );
return HB_SUCCESS;
case DBOI_ORDERCOUNT:
pTag = pArea->pTagList;
while ( pTag )
{
pTag = pTag->pNext;
uiTag++;
}
pOrderInfo->itmResult = hb_itemPutNI( pOrderInfo->itmResult, uiTag );
return HB_SUCCESS;
}
if ( SELF_GOCOLD( ( AREAP ) pArea ) == HB_FAILURE )
return HB_FAILURE;
if ( pOrderInfo->itmOrder )
pTag = hb_mixFindTag( pArea, pOrderInfo->itmOrder );
else
pTag = pArea->pTag;
switch( uiIndex )
{
case DBOI_CONDITION:
pOrderInfo->itmResult = hb_itemPutC( pOrderInfo->itmResult, ( pTag ? pTag->szForExpr : NULL ) );
if ( pTag && pOrderInfo->itmNewVal && HB_IS_STRING( pOrderInfo->itmNewVal ) )
{
if ( pTag->szForExpr != NULL )
{
hb_xfree( pTag->szForExpr );
pTag->szForExpr = NULL;
}
if ( pTag->pForItem != NULL )
{
hb_vmDestroyBlockOrMacro( pTag->pForItem );
pTag->pForItem = NULL;
}
if ( hb_itemGetCLen( pOrderInfo->itmNewVal ) > 0 )
{
const char* pForExpr = hb_itemGetCPtr( pOrderInfo->itmNewVal );
if ( SELF_COMPILE( (AREAP) pArea, pForExpr ) == HB_SUCCESS )
{
PHB_ITEM pForItem = pArea->sqlarea.area.valResult;
pArea->sqlarea.area.valResult = NULL;
if ( SELF_EVALBLOCK( (AREAP) pArea, pForItem ) == HB_SUCCESS )
{
if ( hb_itemType( pArea->sqlarea.area.valResult ) == HB_IT_LOGICAL )
{
pTag->szForExpr = hb_strdup( pForExpr );
pTag->pForItem = pForItem;
pForItem = NULL;
}
hb_itemRelease( pArea->sqlarea.area.valResult );
pArea->sqlarea.area.valResult = NULL;
}
if ( pForItem )
hb_vmDestroyBlockOrMacro( pForItem );
}
}
}
break;
case DBOI_EXPRESSION:
pOrderInfo->itmResult = hb_itemPutC( pOrderInfo->itmResult, pTag ? pTag->szKeyExpr : NULL );
break;
case DBOI_POSITION:
case DBOI_KEYNORAW:
if ( pOrderInfo->itmNewVal && HB_IS_NUMERIC( pOrderInfo->itmNewVal ) )
{
/* TODO:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult,
hb_cdxDBOIKeyGoto( pArea, pTag,
hb_itemGetNL( pOrderInfo->itmNewVal ), uiIndex == DBOI_POSITION ) == HB_SUCCESS );
*/
}
else
pOrderInfo->itmResult = hb_itemPutNL( pOrderInfo->itmResult,
hb_mixDBOIKeyNo( pTag, uiIndex == DBOI_POSITION ) );
break;
case DBOI_KEYCOUNT:
case DBOI_KEYCOUNTRAW:
pOrderInfo->itmResult = hb_itemPutNL( pOrderInfo->itmResult,
hb_mixDBOIKeyCount( pTag, uiIndex == DBOI_KEYCOUNT ) );
break;
/* TODO:
case DBOI_FINDREC:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult,
hb_cdxDBOIFindRec( pArea, pTag,
hb_itemGetNL( pOrderInfo->itmNewVal ), FALSE ) );
break;
case DBOI_FINDRECCONT:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult,
hb_cdxDBOIFindRec( pArea, pTag,
hb_itemGetNL( pOrderInfo->itmNewVal ), TRUE ) );
break;
*/
case DBOI_NAME:
pOrderInfo->itmResult = hb_itemPutC( pOrderInfo->itmResult, pTag ? pTag->szName : NULL );
break;
case DBOI_NUMBER:
pOrderInfo->itmResult = hb_itemPutNI( pOrderInfo->itmResult, uiTag ); // kitaip
break;
case DBOI_ISCOND:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, pTag && pTag->szForExpr != NULL );
break;
case DBOI_ISDESC:
case DBOI_UNIQUE:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, FALSE );
break;
case DBOI_SCOPETOP:
case DBOI_SCOPEBOTTOM:
if ( pOrderInfo->itmResult )
hb_itemClear( pOrderInfo->itmResult );
break;
case DBOI_KEYTYPE:
if ( pTag )
{
char szType[ 2 ];
szType[ 0 ] = ( char ) pTag->bType;
szType[ 1 ] = 0;
pOrderInfo->itmResult = hb_itemPutC( pOrderInfo->itmResult, szType );
}
else
pOrderInfo->itmResult = hb_itemPutC( pOrderInfo->itmResult, NULL );
break;
case DBOI_KEYSIZE:
pOrderInfo->itmResult = hb_itemPutNI( pOrderInfo->itmResult, pTag ? pTag->uiKeyLen : 0 );
break;
case DBOI_KEYDEC:
pOrderInfo->itmResult = hb_itemPutNI( pOrderInfo->itmResult, 0 );
break;
/* TODO:
case DBOI_KEYVAL:
hb_itemClear( pOrderInfo->itmResult );
if ( pArea->sqlarea.lpdbPendingRel )
SELF_FORCEREL( ( AREAP ) pArea );
if ( pTag && pArea->sqlarea.fPositioned )
{
if ( pTag->CurKey->rec != pArea->sqlarea.ulRecNo )
{
hb_cdxIndexLockRead( pTag->pIndex );
hb_cdxCurKeyRefresh( pArea, pTag );
hb_cdxIndexUnLockRead( pTag->pIndex );
}
if ( pTag->CurKey->rec == pArea->sqlarea.ulRecNo )
pOrderInfo->itmResult = hb_cdxKeyGetItem( pTag->CurKey,
pOrderInfo->itmResult, pTag, TRUE );
}
break;
case DBOI_CUSTOM:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, ( pTag ? pTag->fCustom : FALSE ) );
if ( pOrderInfo->itmNewVal && HB_IS_LOGICAL( pOrderInfo->itmNewVal )
&& hb_itemGetL( pOrderInfo->itmNewVal ) )
{
pTag->fCustom = TRUE;
}
break;
case DBOI_KEYADD:
if ( ! pTag )
{
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, FALSE );
}
else
{
if ( pTag->fCustom )
{
if ( pArea->sqlarea.lpdbPendingRel )
SELF_FORCEREL( ( AREAP ) pArea );
if ( ! pArea->sqlarea.fPositioned ||
( pTag->pForItem &&
! hb_cdxEvalCond( pArea, pTag->pForItem, TRUE ) ) )
{
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, FALSE );
}
else
{
LPCDXKEY pKey;
hb_cdxIndexLockWrite( pTag->pIndex );
if ( pOrderInfo->itmNewVal && ! HB_IS_NIL( pOrderInfo->itmNewVal ) )
pKey = hb_cdxKeyPutItem( NULL, pOrderInfo->itmNewVal, pArea->sqlarea.ulRecNo, pTag, TRUE, TRUE );
else
pKey = hb_cdxKeyEval( NULL, pTag );
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult,
hb_cdxTagKeyAdd( pTag, pKey ) );
hb_cdxIndexUnLockWrite( pTag->pIndex );
hb_cdxKeyFree( pKey );
}
}
else
{
sqlmixErrorRT( pArea, 0, 1052, NULL, 0, 0 );
}
}
break;
case DBOI_KEYDELETE:
if ( ! pTag )
{
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, FALSE );
}
else
{
if ( pTag->Custom )
{
if ( pArea->sqlarea.lpdbPendingRel )
SELF_FORCEREL( ( AREAP ) pArea );
if ( !pArea->sqlarea.fPositioned ||
( pTag->pForItem &&
!hb_cdxEvalCond( pArea, pTag->pForItem, TRUE ) ) )
{
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, FALSE );
}
else
{
LPCDXKEY pKey;
hb_cdxIndexLockWrite( pTag->pIndex );
if ( pOrderInfo->itmNewVal && !HB_IS_NIL( pOrderInfo->itmNewVal ) )
pKey = hb_cdxKeyPutItem( NULL, pOrderInfo->itmNewVal, pArea->sqlarea.ulRecNo, pTag, TRUE, TRUE );
else
pKey = hb_cdxKeyEval( NULL, pTag );
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult,
hb_cdxTagKeyDel( pTag, pKey ) );
hb_cdxIndexUnLockWrite( pTag->pIndex );
hb_cdxKeyFree( pKey );
}
}
else
{
sqlmixErrorRT( pArea, 0, 1052, NULL, 0, 0 );
}
}
break;
*/
case DBOI_SHARED:
case DBOI_ISREADONLY:
pOrderInfo->itmResult = hb_itemPutL( pOrderInfo->itmResult, FALSE );
break;
default:
return SUPER_ORDINFO( ( AREAP ) pArea, uiIndex, pOrderInfo );
}
return HB_SUCCESS;
}
static HB_ERRCODE sqlmixExit( LPRDDNODE pRDD )
{
/* This empty method is used to avoid duplicated sqlbase exit call */
HB_SYMBOL_UNUSED( pRDD );
return HB_SUCCESS;
}
static RDDFUNCS sqlmixTable =
{( DBENTRYP_BP ) NULL, /* sqlmixBof */
( DBENTRYP_BP ) NULL, /* sqlmixEof */
( DBENTRYP_BP ) NULL, /* sqlmixFound */
( DBENTRYP_V ) sqlmixGoBottom,
( DBENTRYP_UL ) NULL, /* sqlmixGoTo */
( DBENTRYP_I ) NULL, /* sqlmixGoToId */
( DBENTRYP_V ) sqlmixGoTop,
( DBENTRYP_BIB ) sqlmixSeek,
( DBENTRYP_L ) NULL, /* sqlmixSkip */
( DBENTRYP_L ) NULL, /* sqlmixSkipFilter */
( DBENTRYP_L ) sqlmixSkipRaw,
( DBENTRYP_VF ) NULL, /* sqlmixAddField */
( DBENTRYP_B ) NULL, /* sqlmixAppend */
( DBENTRYP_I ) NULL, /* sqlmixCreateFields */
( DBENTRYP_V ) NULL, /* sqlmixDeleteRec */
( DBENTRYP_BP ) NULL, /* sqlmixDeleted */
( DBENTRYP_SP ) NULL, /* sqlmixFieldCount */
( DBENTRYP_VF ) NULL, /* sqlmixFieldDisplay */
( DBENTRYP_SSI ) NULL, /* sqlmixFieldInfo */
( DBENTRYP_SCP ) NULL, /* sqlmixFieldName */
( DBENTRYP_V ) NULL, /* sqlmixFlush */
( DBENTRYP_PP ) NULL, /* sqlmixGetRec */
( DBENTRYP_SI ) NULL, /* sqlmixGetValue */
( DBENTRYP_SVL ) NULL, /* sqlmixGetVarLen */
( DBENTRYP_V ) sqlmixGoCold,
( DBENTRYP_V ) sqlmixGoHot,
( DBENTRYP_P ) NULL, /* sqlmixPutRec */
( DBENTRYP_SI ) NULL, /* sqlmixPutValue */
( DBENTRYP_V ) NULL, /* sqlmixRecall */
( DBENTRYP_ULP ) NULL, /* sqlmixRecCount */
( DBENTRYP_ISI ) NULL, /* sqlmixRecInfo */
( DBENTRYP_ULP ) NULL, /* sqlmixRecNo */
( DBENTRYP_I ) NULL, /* sqlmixRecId */
( DBENTRYP_S ) NULL, /* sqlmixSetFieldExtent */
( DBENTRYP_CP ) NULL, /* sqlmixAlias */
( DBENTRYP_V ) sqlmixClose,
( DBENTRYP_VO ) NULL, /* sqlmixCreate */
( DBENTRYP_SI ) NULL, /* sqlmixInfo */
( DBENTRYP_V ) NULL, /* sqlmixNewArea */
( DBENTRYP_VO ) NULL, /* sqlmixOpen */
( DBENTRYP_V ) NULL, /* sqlmixRelease */
( DBENTRYP_SP ) sqlmixStructSize,
( DBENTRYP_CP ) NULL, /* sqlmixSysName */
( DBENTRYP_VEI ) NULL, /* sqlmixEval */
( DBENTRYP_V ) NULL, /* sqlmixPack */
( DBENTRYP_LSP ) NULL, /* sqlmixPackRec */
( DBENTRYP_VS ) NULL, /* sqlmixSort */
( DBENTRYP_VT ) NULL, /* sqlmixTrans */
( DBENTRYP_VT ) NULL, /* sqlmixTransRec */
( DBENTRYP_V ) NULL, /* sqlmixZap */
( DBENTRYP_VR ) NULL, /* sqlmixChildEnd */
( DBENTRYP_VR ) NULL, /* sqlmixChildStart */
( DBENTRYP_VR ) NULL, /* sqlmixChildSync */
( DBENTRYP_V ) NULL, /* sqlmixSyncChildren */
( DBENTRYP_V ) NULL, /* sqlmixClearRel */
( DBENTRYP_V ) NULL, /* sqlmixForceRel */
( DBENTRYP_SSP ) NULL, /* sqlmixRelArea */
( DBENTRYP_VR ) NULL, /* sqlmixRelEval */
( DBENTRYP_SI ) NULL, /* sqlmixRelText */
( DBENTRYP_VR ) NULL, /* sqlmixSetRel */
( DBENTRYP_VOI ) NULL, /* sqlmixOrderListAdd */
( DBENTRYP_V ) sqlmixOrderListClear,
( DBENTRYP_VOI ) NULL, /* sqlmixOrderListDelete */
( DBENTRYP_VOI ) sqlmixOrderListFocus,
( DBENTRYP_V ) NULL, /* sqlmixOrderListRebuild */
( DBENTRYP_VOO ) NULL, /* sqlmixOrderCondition */
( DBENTRYP_VOC ) sqlmixOrderCreate,
( DBENTRYP_VOI ) NULL, /* sqlmixOrderDestroy */
( DBENTRYP_SVOI ) sqlmixOrderInfo,
( DBENTRYP_V ) NULL, /* sqlmixClearFilter */
( DBENTRYP_V ) NULL, /* sqlmixClearLocate */
( DBENTRYP_V ) NULL, /* sqlmixClearScope */
( DBENTRYP_VPLP ) NULL, /* sqlmixCountScope */
( DBENTRYP_I ) NULL, /* sqlmixFilterText */
( DBENTRYP_SI ) NULL, /* sqlmixScopeInfo */
( DBENTRYP_VFI ) NULL, /* sqlmixSetFilter */
( DBENTRYP_VLO ) NULL, /* sqlmixSetLocate */
( DBENTRYP_VOS ) NULL, /* sqlmixSetScope */
( DBENTRYP_VPL ) NULL, /* sqlmixSkipScope */
( DBENTRYP_B ) NULL, /* sqlmixLocate */
( DBENTRYP_CC ) NULL, /* sqlmixCompile */
( DBENTRYP_I ) NULL, /* sqlmixError */
( DBENTRYP_I ) NULL, /* sqlmixEvalBlock */
( DBENTRYP_VSP ) NULL, /* sqlmixRawLock */
( DBENTRYP_VL ) NULL, /* sqlmixLock */
( DBENTRYP_I ) NULL, /* sqlmixUnLock */
( DBENTRYP_V ) NULL, /* sqlmixCloseMemFile */
( DBENTRYP_VO ) NULL, /* sqlmixCreateMemFile */
( DBENTRYP_SCCS ) NULL, /* sqlmixGetValueFile */
( DBENTRYP_VO ) NULL, /* sqlmixOpenMemFile */
( DBENTRYP_SCCS ) NULL, /* sqlmixPutValueFile */
( DBENTRYP_V ) NULL, /* sqlmixReadDBHeader */
( DBENTRYP_V ) NULL, /* sqlmixWriteDBHeader */
( DBENTRYP_R ) NULL, /* sqlmixInit */
( DBENTRYP_R ) sqlmixExit,
( DBENTRYP_RVVL) NULL, /* sqlmixDrop */
( DBENTRYP_RVVL) NULL, /* sqlmixExists */
( DBENTRYP_RVVVL) NULL, /* sqlmixRename */
( DBENTRYP_RSLV ) NULL, /* sqlmixRddInfo */
( DBENTRYP_SVP ) NULL, /* sqlmixWhoCares */
};
HB_FUNC( SQLMIX_GETFUNCTABLE )
{
RDDFUNCS * pTable;
USHORT * uiCount, uiRddId;
uiCount = ( USHORT * ) hb_itemGetPtr( hb_param( 1, HB_IT_POINTER ) );
* uiCount = RDDFUNCSCOUNT;
pTable = ( RDDFUNCS * ) hb_itemGetPtr( hb_param( 2, HB_IT_POINTER ) );
uiRddId = ( USHORT ) hb_parni( 4 );
if ( pTable )
{
HB_ERRCODE errCode;
errCode = hb_rddInherit( pTable, &sqlmixTable, &sqlmixSuper, "SQLBASE" );
if ( errCode == HB_SUCCESS )
{
s_uiRddIdSQLMIX = uiRddId;
}
hb_retni( errCode );
}
else
{
hb_retni( HB_FAILURE );
}
}
HB_FUNC( SQLMIX ) { ; }
HB_FUNC_EXTERN( SQLBASE );
static void hb_sqlmixRddInit( void * cargo )
{
HB_SYMBOL_UNUSED( cargo );
if ( hb_rddRegister( "SQLMIX", RDT_FULL ) > 1 )
{
/* try different RDD registrer order */
hb_rddRegister( "SQLBASE", RDT_FULL );
if ( hb_rddRegister( "SQLMIX", RDT_FULL ) > 1 )
{
hb_errInternal( HB_EI_RDDINVALID, NULL, NULL, NULL );
HB_FUNC_EXEC( SQLBASE ); /* force SQLBASE linking */
}
}
}
HB_INIT_SYMBOLS_BEGIN( sqlmix__InitSymbols )
{ "SQLMIX", {HB_FS_PUBLIC|HB_FS_LOCAL}, {HB_FUNCNAME( SQLMIX )}, NULL },
{ "SQLMIX_GETFUNCTABLE", {HB_FS_PUBLIC|HB_FS_LOCAL}, {HB_FUNCNAME( SQLMIX_GETFUNCTABLE )}, NULL }
HB_INIT_SYMBOLS_END( sqlmix__InitSymbols )
HB_CALL_ON_STARTUP_BEGIN( _hb_sqlmix_rdd_init_ )
hb_vmAtInit( hb_sqlmixRddInit, NULL );
HB_CALL_ON_STARTUP_END( _hb_sqlmix_rdd_init_ )
#if defined( HB_PRAGMA_STARTUP )
#pragma startup sqlmix__InitSymbols
#pragma startup _hb_sqlmix_rdd_init_
#elif defined( HB_MSC_STARTUP )
#if defined( HB_OS_WIN_64 )
#pragma section( HB_MSC_START_SEGMENT, long, read )
#endif
#pragma data_seg( HB_MSC_START_SEGMENT )
static HB_$INITSYM hb_vm_auto_sqlmix__InitSymbols = sqlmix__InitSymbols;
static HB_$INITSYM hb_vm_auto_sqlmix_rdd_init = _hb_sqlmix_rdd_init_;
#pragma data_seg()
#endif