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SUREF.H
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C/C++ Source or Header
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1997-02-28
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99 lines
/* @(#)Z 1.4 com/src/bento/SURef.h, odstorage, od96os2, odos29646d 96/11/15 15:29:29 (96/10/29 09:13:40) */
/*====START_GENERATED_PROLOG======================================
*/
/*
* COMPONENT_NAME: odstorage
*
* CLASSES: SURefKeeper
*
* ORIGINS: 82,27
*
*
* (C) COPYRIGHT International Business Machines Corp. 1995,1996
* All Rights Reserved
* Licensed Materials - Property of IBM
* US Government Users Restricted Rights - Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
* OR PERFORMANCE OF THIS SOFTWARE.
*/
/*====END_GENERATED_PROLOG========================================
*/
/*
File: SURef.h
Contains: SURefKeeper header
Written by: Vincent Lo
Copyright: ⌐ 1995 by Apple Computer, Inc., all rights reserved.
Change History (most recent first):
<1> 1/26/95 VL first checked in
To Do:
*/
#ifndef _SUREF_
#define _SUREF_
#ifndef _ODTYPES_
#include <ODTypes.h>
#endif
#ifndef __CM_API__
#include <CMAPI.h>
#endif
//==============================================================================
// Classes defined in this interface
//==============================================================================
class SURefKeeper;
//==============================================================================
// Classes used by this interface
//==============================================================================
class CMStorageUnit;
class SURefKeeper
{
public:
SURefKeeper(CMStorageUnit* su);
~SURefKeeper();
void Internalize();
void Externalize();
void GetNextSURef(ODStorageUnitRef ref, ODBoolean strong);
void Reset(ODStorageUnitRef ref);
ODBoolean IsWeakSURef(ODStorageUnitRef ref);
ODBoolean IsStrongSURef(ODStorageUnitRef ref);
void InvalidateSURef(ODStorageUnitRef ref);
ODBoolean IsValidSURef(ODStorageUnitRef ref);
protected:
CMStorageUnit* fSU;
ODBoolean fDirty;
ODULong fCurrentSURef;
};
#endif // _SUREF_