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Diffstat (limited to 'src/core/xbmemo.cpp')
| -rwxr-xr-x | src/core/xbmemo.cpp | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/src/core/xbmemo.cpp b/src/core/xbmemo.cpp deleted file mode 100755 index 2bde853..0000000 --- a/src/core/xbmemo.cpp +++ /dev/null @@ -1,219 +0,0 @@ -/* xbmemo.cpp - -XBase64 Software Library - -Copyright (c) 1997,2003,2014,2022 Gary A Kunkel - -The xb64 software library is covered under the terms of the GPL Version 3, 2007 license. - -Email Contact: - - XDB-devel@lists.sourceforge.net - XDB-users@lists.sourceforge.net - - Base memo class -*/ - -#include "xbase.h" - -#ifdef XB_MEMO_SUPPORT - -namespace xb{ - -/***********************************************************************/ -//! @brief Class Constructor. -/*! - \param dbf Pointer to dbf construct. - \param sFileName Memo file name. -*/ - -xbMemo::xbMemo( xbDbf * dbf, xbString const &sFileName ) : xbFile( dbf->GetXbasePtr() ) { - this->dbf = dbf; /* pointer to the associated dbf class instance */ - // xbase = dbf->GetXbasePtr(); /* pointer to the engine */ - SetDirectory( dbf->GetDirectory()); - SetFileName( sFileName ); - mbb = NULL; - #ifdef XB_LOCKING_SUPPORT - bFileLocked = xbFalse; - #endif -} -/***********************************************************************/ -//! @brief Class Destructor. -xbMemo::~xbMemo(){ - if( mbb ) - free( mbb ); -} -/***********************************************************************/ -//! @brief Calculate the last data block number. -/*! - \param ulLastDataBlock Output - Last used block number in the file. - \returns <a href="xbretcod_8h.html">Return Codes</a> -*/ -xbInt16 xbMemo::CalcLastDataBlock( xbUInt32 & ulLastDataBlock ){ - - xbInt16 iRc = XB_NO_ERROR; - if(( iRc = xbFseek( 0, SEEK_END )) != XB_NO_ERROR ) - return iRc; - - ulLastDataBlock = (xbUInt32) xbFtell() / (xbUInt32) GetBlockSize(); - return XB_NO_ERROR; -} -/***********************************************************************/ -//! @brief Close the memo file. -/*! - \returns <a href="xbretcod_8h.html">Return Codes</a> -*/ -xbInt16 xbMemo::CloseMemoFile(){ - - if( mbb ){ - free( mbb ); - mbb = NULL; - } - return xbFclose(); -} - - -/***********************************************************************/ -//! @brief Get memo file type. -/*! - \returns 3 - Version 3 memo file.<br> - 4 - Version 4 memo file. -*/ -xbInt16 xbMemo::GetMemoFileType(){ - return iMemoFileType; -} - -/***********************************************************************/ -//! @brief Get next block available from file header. -/*! - \param ulBlockNo Output - Next block number for appending data to memo file. - \returns <a href="xbretcod_8h.html">Return Codes</a> -*/ -xbInt16 xbMemo::GetHdrNextBlock( xbUInt32 & ulBlockNo ){ - xbInt16 iRc = XB_NO_ERROR; - xbInt16 iErrorStop = 0; - try{ - if(( iRc = ReadDbtHeader( 0 )) != XB_NO_ERROR ){ - iErrorStop = 100; - throw iRc; - } - ulBlockNo = ulHdrNextBlock; - } - catch (xbInt16 iRc ){ - xbString sMsg; - sMsg.Sprintf( "xbmemo::GetNextAvailableBlock() Exception Caught. Error Stop = [%d] iRc = [%d]", iErrorStop, iRc ); - xbase->WriteLogMessage( sMsg.Str() ); - xbase->WriteLogMessage( GetErrorMessage( iRc )); - } - return iRc; -} -/***********************************************************************/ -#ifdef XB_LOCKING_SUPPORT -//! @brief Lock memo file -/*! - - \param iLockFunction XB_LOCK<br>XB_UNLOCK - \returns <a href="xbretcod_8h.html">Return Codes</a> -*/ - -xbInt16 xbMemo::LockMemo( xbInt16 iLockFunction ){ - - xbInt16 iRc = XB_NO_ERROR; - xbInt16 iErrorStop = 0; - - try{ - if( iLockFunction == XB_LOCK ){ - - if( bFileLocked ) // already locked - return XB_NO_ERROR; - - if( dbf->GetLockFlavor() == LK_DBASE ){ - iRc = xbLock( XB_LOCK, LK4026531838, 1 ); - if( iRc != XB_NO_ERROR ){ - if( iRc == XB_LOCK_FAILED ) - return iRc; - else { - iErrorStop = 100; - throw iRc; - } - } else { - bFileLocked = xbTrue; - } - } - } else if( iLockFunction == XB_UNLOCK ){ - - if( !bFileLocked ) // already unlocked - return XB_NO_ERROR; - - if( dbf->GetLockFlavor() == LK_DBASE ){ - iRc = xbLock( XB_UNLOCK, LK4026531838, 1 ); - if( iRc != XB_NO_ERROR ){ - if( iRc == XB_LOCK_FAILED ) - return iRc; - else { - iErrorStop = 110; - throw iRc; - } - } else { - bFileLocked = xbFalse; - } - } - } else { - iErrorStop = 120; - iRc = XB_INVALID_OPTION; - throw iRc; - } - } - catch (xbInt16 iRc ){ - xbString sMsg; - sMsg.Sprintf( "xbmemo::LockMemoFile() Exception Caught. Error Stop = [%d] iRc = [%d]", iErrorStop, iRc ); - xbase->WriteLogMessage( sMsg.Str() ); - xbase->WriteLogMessage( GetErrorMessage( iRc )); - } - return iRc; -} - -/***********************************************************************/ -//! @brief Get memo file lock status. -/*! - \returns xbTrue - Memo file is locked.<br> - xbFalse - Memo file is not locked. -*/ -xbBool xbMemo::GetMemoLocked() const { - return bFileLocked; -} -#endif - -/***********************************************************************/ -//! @brief Update Next Node number in file header -/*! - \returns <a href="xbretcod_8h.html">Return Codes</a> -*/ -xbInt16 xbMemo::UpdateHeadNextNode(){ - - xbInt16 iRc = XB_NO_ERROR; - xbInt16 iErrorStop = 0; - try{ - char buf[4]; - ePutUInt32( buf, ulHdrNextBlock ); - if(( iRc = xbFseek( 0, SEEK_SET )) != XB_NO_ERROR ){ - iErrorStop = 100; - throw iRc; - } - if(( iRc = xbFwrite( &buf, 4, 1 )) != XB_NO_ERROR ){ - iErrorStop = 110; - throw iRc; - } - } - catch (xbInt16 iRc ){ - xbString sMsg; - sMsg.Sprintf( "xbmemo::UpdateHeadeNextNode() Exception Caught. Error Stop = [%d] iRc = [%d]", iErrorStop, iRc ); - xbase->WriteLogMessage( sMsg.Str() ); - xbase->WriteLogMessage( GetErrorMessage( iRc )); - } - return iRc; -} -/***********************************************************************/ -} /* namespace */ -#endif /* XB_MEMO_SUPPORT */ - |