static void hb_dbQSortSwap( LPDBQUICKSORT pQuickSort, HB_ULONG ulRecNo1, HB_ULONG ulRecNo2 )
{
/* Swap records */
hb_fsSeek( pQuickSort->hFile, ( ulRecNo1 - 1 ) * pQuickSort->uiRecordLen, FS_SET );
hb_fsRead( pQuickSort->hFile, pQuickSort->pSwapBufferA, pQuickSort->uiRecordLen );
hb_fsSeek( pQuickSort->hFile, ( ulRecNo2 - 1 ) * pQuickSort->uiRecordLen, FS_SET );
hb_fsRead( pQuickSort->hFile, pQuickSort->pSwapBufferB, pQuickSort->uiRecordLen );
hb_fsSeek( pQuickSort->hFile, ( ulRecNo1 - 1 ) * pQuickSort->uiRecordLen, FS_SET );
hb_fsWrite( pQuickSort->hFile, pQuickSort->pSwapBufferB, pQuickSort->uiRecordLen );
hb_fsSeek( pQuickSort->hFile, ( ulRecNo2 - 1 ) * pQuickSort->uiRecordLen, FS_SET );
hb_fsWrite( pQuickSort->hFile, pQuickSort->pSwapBufferA, pQuickSort->uiRecordLen );
}
static HB_SIZE ct_StrFile( const char * pFileName, const char * pcStr, HB_SIZE nLen,
HB_BOOL bOverwrite, HB_FOFFSET nOffset, HB_BOOL bTrunc )
{
HB_FHANDLE hFile;
HB_BOOL bOpen = HB_FALSE;
HB_BOOL bFile = hb_fsFile( pFileName );
HB_SIZE nWrite = 0;
if( bFile && bOverwrite )
{
hFile = hb_fsOpen( pFileName, FO_READWRITE );
bOpen = HB_TRUE;
}
else if( ! bFile || ! ct_getsafety() )
hFile = hb_fsCreate( pFileName, ct_getfcreate() );
else
hFile = FS_ERROR;
if( hFile != FS_ERROR )
{
if( nOffset )
hb_fsSeekLarge( hFile, nOffset, FS_SET );
else if( bOpen )
hb_fsSeek( hFile, 0, FS_END );
nWrite = hb_fsWriteLarge( hFile, pcStr, nLen );
if( ( nWrite == nLen ) && bOpen && bTrunc )
hb_fsWrite( hFile, NULL, 0 );
hb_fsClose( hFile );
}
return nWrite;
}
HB_BOOL hb_dbQSortAdvance( LPDBQUICKSORT pQuickSort, HB_USHORT uiCount )
{
HB_USHORT uiSize;
/* Write chunk */
uiSize = uiCount * pQuickSort->uiRecordLen;
return hb_fsWrite( pQuickSort->hFile, pQuickSort->pBuffer, uiSize ) == uiSize;
}
/* deletes xxx bytes from the current file, beginning at the current record */
static int _del_buff( PFT_TEXT ft_text, HB_ISIZ iLen )
{
char * WriteBuff = ( char * ) hb_xgrab( BUFFSIZE );
HB_FOFFSET fpRead, fpWrite;
HB_ISIZ WriteLen;
HB_ISIZ SaveLen;
/* initialize file pointers */
fpWrite = ft_text->offset[ ft_text->area ];
fpRead = ft_text->offset[ ft_text->area ] + iLen;
/* do initial load of buffer */
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpRead, FS_SET );
WriteLen = hb_fsRead( ft_text->handles[ ft_text->area ], WriteBuff, BUFFSIZE );
fpRead += WriteLen;
ft_text->error[ ft_text->area ] = 0;
while( WriteLen > 0 )
{
/* position to beginning of write area */
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpWrite, FS_SET );
SaveLen = hb_fsWriteLarge( ft_text->handles[ ft_text->area ], WriteBuff, WriteLen );
/* move write pointer */
fpWrite += SaveLen;
if( SaveLen != WriteLen )
{
/* error, fetch errcode and quit */
ft_text->error[ ft_text->area ] = hb_fsError();
break;
}
/* return to read area and read another buffer */
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpRead, FS_SET );
WriteLen = hb_fsRead( ft_text->handles[ ft_text->area ], WriteBuff, BUFFSIZE );
fpRead += WriteLen;
}
/* store length in bytes, set legacy EOF marker */
ft_text->lastbyte[ ft_text->area ] = hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpWrite, FS_SET );
hb_fsWrite( ft_text->handles[ ft_text->area ], WriteBuff, 0 );
/* clear last_rec so next gobot will recount the records */
ft_text->last_rec[ ft_text->area ] = 0;
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], ft_text->offset[ ft_text->area ], FS_SET );
hb_xfree( WriteBuff );
return ft_text->error[ ft_text->area ];
}
/* the contents of the inserted bytes are indeterminate, i.e. you'll have to
write to them before they mean anything */
static int _ins_buff( PFT_TEXT ft_text, HB_ISIZ iLen )
{
char * ReadBuff = ( char * ) hb_xgrab( BUFFSIZE );
char * WriteBuff = ( char * ) hb_xgrab( BUFFSIZE );
char * SaveBuff;
HB_FOFFSET fpRead, fpWrite;
HB_ISIZ WriteLen, ReadLen;
HB_ISIZ SaveLen;
HB_ISIZ iLenRemaining = iLen;
/* set target move distance, this allows iLen to be greater than BUFFSIZE */
iLen = HB_MIN( iLenRemaining, BUFFSIZE );
iLenRemaining -= iLen;
/* initialize file pointers */
fpRead = ft_text->offset[ ft_text->area ];
fpWrite = ft_text->offset[ ft_text->area ] + iLen;
/* do initial load of both buffers */
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpRead, FS_SET );
WriteLen = hb_fsRead( ft_text->handles[ ft_text->area ], WriteBuff, BUFFSIZE );
fpRead += WriteLen;
ReadLen = hb_fsRead( ft_text->handles[ ft_text->area ], ReadBuff, BUFFSIZE );
fpRead += ReadLen;
ft_text->error[ ft_text->area ] = 0;
while( ! ft_text->error[ ft_text->area ] && iLen > 0 )
{
while( WriteLen > 0 )
{
/* position to beginning of write area */
if( hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpWrite, FS_SET ) != fpWrite )
{
ft_text->error[ ft_text->area ] = hb_fsError();
break;
}
SaveLen = hb_fsWriteLarge( ft_text->handles[ ft_text->area ], WriteBuff, WriteLen );
if( ! SaveLen )
{
ft_text->error[ ft_text->area ] = hb_fsError();
break;
}
/* move write pointer */
fpWrite += SaveLen;
if( SaveLen != WriteLen )
{
/* error, fetch errcode and quit */
ft_text->error[ ft_text->area ] = hb_fsError();
break;
}
#if 0
WriteLen = SaveLen;
#endif
/* swap buffers */
SaveBuff = WriteBuff;
WriteBuff = ReadBuff;
ReadBuff = SaveBuff;
WriteLen = ReadLen;
/* return to read area and read another buffer */
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpRead, FS_SET );
ReadLen = hb_fsRead( ft_text->handles[ ft_text->area ], ReadBuff, BUFFSIZE );
fpRead += ReadLen;
}
iLen = HB_MIN( iLenRemaining, BUFFSIZE );
iLenRemaining -= iLen;
}
/* store length in bytes, set legacy EOF marker */
ft_text->lastbyte[ ft_text->area ] = hb_fsSeekLarge( ft_text->handles[ ft_text->area ], fpWrite, FS_SET );
hb_fsWrite( ft_text->handles[ ft_text->area ], WriteBuff, 0 );
/* clear last_rec so next gobot will recount the records */
ft_text->last_rec[ ft_text->area ] = 0;
hb_fsSeekLarge( ft_text->handles[ ft_text->area ], ft_text->offset[ ft_text->area ], FS_SET );
hb_xfree( ReadBuff );
hb_xfree( WriteBuff );
return ft_text->error[ ft_text->area ];
}
static void hb_conDevPos( int iRow, int iCol )
{
HB_FHANDLE hFile;
HB_TRACE( HB_TR_DEBUG, ( "hb_conDevPos(%d, %d)", iRow, iCol ) );
/* Position printer if SET DEVICE TO PRINTER and valid printer file
otherwise position console */
if( ( hFile = hb_setGetPrinterHandle( HB_SET_PRN_DEV ) ) != FS_ERROR )
{
int iPRow = iRow;
int iPCol = iCol + hb_setGetMargin();
PHB_PRNPOS pPrnPos = hb_prnPos();
if( pPrnPos->row != iPRow || pPrnPos->col != iPCol )
{
char buf[ 256 ];
int iPtr = 0;
if( pPrnPos->row != iPRow )
{
if( ++pPrnPos->row > iPRow )
{
memcpy( &buf[ iPtr ], "\x0C\x0D\x00\x00", 2 ); /* Source buffer is 4 bytes to make CodeGuard happy */
iPtr += 2;
pPrnPos->row = 0;
}
else
{
memcpy( &buf[ iPtr ], s_szCrLf, s_iCrLfLen );
iPtr += s_iCrLfLen;
}
while( pPrnPos->row < iPRow )
{
if( iPtr + s_iCrLfLen > ( int ) sizeof( buf ) )
{
hb_fsWrite( hFile, buf, ( HB_USHORT ) iPtr );
iPtr = 0;
}
memcpy( &buf[ iPtr ], s_szCrLf, s_iCrLfLen );
iPtr += s_iCrLfLen;
++pPrnPos->row;
}
pPrnPos->col = 0;
}
else if( pPrnPos->col > iPCol )
{
buf[ iPtr++ ] = '\x0D';
pPrnPos->col = 0;
}
while( pPrnPos->col < iPCol )
{
if( iPtr == ( int ) sizeof( buf ) )
{
hb_fsWrite( hFile, buf, ( HB_USHORT ) iPtr );
iPtr = 0;
}
buf[ iPtr++ ] = ' ';
++pPrnPos->col;
}
if( iPtr )
hb_fsWrite( hFile, buf, ( HB_USHORT ) iPtr );
}
}
else
hb_gtSetPos( iRow, iCol );
}
static HB_BOOL hb_copyfile( const char * szSource, const char * szDest )
{
HB_BOOL bRetVal = HB_FALSE;
HB_FHANDLE fhndSource;
PHB_ITEM pError = NULL;
HB_TRACE( HB_TR_DEBUG, ( "hb_copyfile(%s, %s)", szSource, szDest ) );
do
{
fhndSource = hb_fsExtOpen( szSource, NULL,
FO_READ | FXO_DEFAULTS | FXO_SHARELOCK,
NULL, pError );
if( fhndSource == FS_ERROR )
{
pError = hb_errRT_FileError( pError, NULL, EG_OPEN, 2012, szSource );
if( hb_errLaunch( pError ) != E_RETRY )
break;
}
}
while( fhndSource == FS_ERROR );
if( fhndSource != FS_ERROR )
{
HB_FHANDLE fhndDest;
do
{
fhndDest = hb_fsExtOpen( szDest, NULL,
FXO_TRUNCATE | FO_READWRITE | FO_EXCLUSIVE |
FXO_DEFAULTS | FXO_SHARELOCK,
NULL, pError );
if( fhndDest == FS_ERROR )
{
pError = hb_errRT_FileError( pError, NULL, EG_CREATE, 2012, szDest );
if( hb_errLaunch( pError ) != E_RETRY )
break;
}
}
while( fhndDest == FS_ERROR );
if( fhndDest != FS_ERROR )
{
#if defined( HB_OS_UNIX )
struct stat struFileInfo;
int iSuccess = fstat( fhndSource, &struFileInfo );
#endif
void * buffer;
HB_USHORT usRead;
buffer = hb_xgrab( BUFFER_SIZE );
bRetVal = HB_TRUE;
while( ( usRead = hb_fsRead( fhndSource, buffer, BUFFER_SIZE ) ) != 0 )
{
while( hb_fsWrite( fhndDest, buffer, usRead ) != usRead )
{
pError = hb_errRT_FileError( pError, NULL, EG_WRITE, 2016, szDest );
if( hb_errLaunch( pError ) != E_RETRY )
{
bRetVal = HB_FALSE;
break;
}
}
}
hb_xfree( buffer );
#if defined( HB_OS_UNIX )
if( iSuccess == 0 )
fchmod( fhndDest, struFileInfo.st_mode );
#endif
hb_fsClose( fhndDest );
}
hb_fsClose( fhndSource );
}
if( pError )
hb_itemRelease( pError );
return bRetVal;
}
