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-rwxr-xr-xxbase64/xblock.h159
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diff --git a/xbase64/xblock.h b/xbase64/xblock.h
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--- a/xbase64/xblock.h
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-/* xblock.h
-
- Xbase project source code
-
- This file conatains a header file for the xbLock virtual objects which
- is used for controlling file and record locking. Record and file
- locking has been rewritten in version 3.
-
- Copyright (C) 1997,2003 Gary A Kunkel
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2 of the License, 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 Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-
- Contact:
-
- Email:
-
- xdb-devel@lists.sourceforge.net
- xdb-users@lists.sourceforge.net
-
-
- Regular Mail:
-
- XBase Support
- 149C South Main St
- Keller Texas, 76248
- USA
-*/
-
-/*! \file xblock.h
-*/
-
-#ifndef __XB_XBLOCK_H__
-#define __XB_XBLOCK_H__
-
-#ifdef __GNU LesserG__
-#pragma interface
-#endif
-
-#ifdef XB_LOCKING_ON
-
-//! xbLock class
-/*!
-*/
-
-class XBDLLEXPORT xbLock
-{
-public:
- xbLock( xbDbf * dbf );
- virtual ~xbLock();
- virtual xbShort LockTableHeader( xbShort LockType ) = 0;
- virtual xbShort LockTable( xbShort LockType ) = 0;
- virtual xbShort LockRecord( xbShort LockType, xbULong RecNo, xbOffT len ) = 0;
- virtual xbShort LockMemo( xbShort LockType ) = 0;
- virtual xbShort LockIndex( xbShort LockType ) = 0;
- virtual xbShort UnlockAll() = 0;
- virtual xbShort LockInit() { return XB_NO_ERROR; }
-
-protected:
- xbDbf *dbf;
- xbShort HdrLockCnt;
- xbShort TableLockCnt;
- xbShort MemoLockCnt;
- xbShort IndexLockCnt;
- xbShort LockFile( int fn, xbShort LockType, xbOffT lockLen );
-};
-
-class XBDLLEXPORT xbaseLock : xbLock
-{
-public:
- xbaseLock( xbDbf * pdbf );
- virtual ~xbaseLock() {}
- virtual xbShort LockTableHeader( xbShort LockType );
- virtual xbShort LockTable( xbShort LockType );
- virtual xbShort LockRecord( xbShort LockType, xbULong RecNo, xbOffT len );
- virtual xbShort LockMemo( xbShort LockType );
- virtual xbShort LockIndex( xbShort LockType );
- virtual xbShort UnlockAll();
- virtual xbShort LockInit();
-private:
- FILE *lfh; /* lock file handle */
-
-};
-
-class XBDLLEXPORT dbaseLock : xbLock
-{
-public:
- dbaseLock( xbDbf * pdbf );
- virtual ~dbaseLock() {}
- virtual xbShort LockTableHeader( xbShort LockType );
- virtual xbShort LockTable( xbShort LockType );
- virtual xbShort LockRecord( xbShort LockType, xbULong RecNo, xbOffT len );
- virtual xbShort LockMemo( xbShort LockType );
- virtual xbShort LockIndex( xbShort LockType );
- virtual xbShort UnlockAll();
-};
-
-
-class XBDLLEXPORT clipperLock : xbLock
-{
-public:
- clipperLock( xbDbf * pdbf );
- virtual ~clipperLock() {}
- virtual xbShort LockTableHeader( xbShort LockType );
- virtual xbShort LockTable( xbShort LockType );
- virtual xbShort LockRecord( xbShort LockType, xbULong RecNo, xbOffT len );
- virtual xbShort LockMemo( xbShort LockType );
- virtual xbShort LockIndex( xbShort LockType );
- virtual xbShort UnlockAll();
-};
-
-class XBDLLEXPORT foxproLock : xbLock
-{
-public:
- foxproLock( xbDbf * pdbf );
- virtual ~foxproLock() {}
- virtual xbShort LockTableHeader( xbShort LockType );
- virtual xbShort LockTable( xbShort LockType );
- virtual xbShort LockRecord( xbShort LockType, xbULong RecNo, xbOffT len );
- virtual xbShort LockMemo( xbShort LockType );
- virtual xbShort LockIndex( xbShort LockType );
- virtual xbShort UnlockAll();
-};
-
-class XBDLLEXPORT noLock : xbLock
-{
-public:
- noLock( xbDbf * pdbf ) : xbLock( pdbf ) {};
- virtual ~noLock() {}
- virtual xbShort LockTableHeader( xbShort LockType )
- { return XB_NO_ERROR; }
- virtual xbShort LockTable( xbShort LockType )
- { return XB_NO_ERROR; }
- virtual xbShort LockRecord( xbShort LockType, xbULong RecNo )
- { return XB_NO_ERROR; }
- virtual xbShort LockMemo( xbShort LockType )
- { return XB_NO_ERROR; }
- virtual xbShort LockIndex( xbShort LockType )
- { return XB_NO_ERROR; }
- virtual xbShort UnlockAll()
- { return XB_NO_ERROR; }
-};
-
-
-
-
-#endif // XB_LOCKING_ON
-#endif // __XB_XBLOCK_H__