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MEMHDR.H
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C/C++ Source or Header
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1997-02-28
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5KB
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158 lines
/* @(#)Z 1.6 com/src/bento/MemHdr.h, odstorage, od96os2, odos29646d 96/11/15 15:29:29 (96/10/29 09:13:09) */
/*====START_GENERATED_PROLOG======================================
*/
/*
* COMPONENT_NAME: odstorage
*
* CLASSES: ODMemBentoHandlers
*
* 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: MemHdr.h
Contains: ODMemContainer header
Written by: Vincent Lo
Copyright: ⌐ 1993-1994 by Apple Computer, Inc., all rights reserved.
Change History (most recent first):
<2> 6/20/94 CC ODMemoryHeap* changed to ODMemoryHeapID.
<1> 5/27/94 VL first checked in
To Do:
*/
#ifndef _MEMHDR_
#define _MEMHDR_
#ifndef _ODTYPES_
#include "ODTypes.h"
#endif
#ifndef _BENTOHDR_
#include "BentoHdr.h"
#endif
#ifndef __CM_API__
#include "CMAPI.h"
#endif
#ifndef __CM_API_TYPES__
#include "CMAPITyp.h"
#endif
#ifndef _ODMEMORY_
#include "ODMemory.h"
#endif
#ifndef _PLFMDEF_
#include "PlfmDef.h"
#endif
// removed ifdef _PLATFORM_NT_ 22470
typedef char* Zone;
typedef Zone* THz;
//==============================================================================
// Theory of Operation
//==============================================================================
//==============================================================================
// Constants
//==============================================================================
extern const ODType kODBentoMemoryTypeName; // = "MemoryCtr";
//==============================================================================
// Scalar Types
//==============================================================================
//==============================================================================
// Classes defined in this interface
//==============================================================================
class ODMemBentoHandlers;
//==============================================================================
// Classes used by this interface
//==============================================================================
//==============================================================================
// ODMemBentoHandlers
//==============================================================================
class ODMemBentoHandlers : public ODBentoHandlers
{
public:
ODMemBentoHandlers(CMSession session, ODHandle data);
ODVMethod ~ODMemBentoHandlers();
ODMethod void Initialize();
ODMethod CMSession GetCMSession();
ODMethod CMRefCon OpenHandler(CMOpenMode mode);
ODMethod void CloseHandler();
ODMethod CMSize FlushHandler();
ODMethod CMSize SeekHandler(CM_LONG posOff, CMSeekMode mode);
ODMethod CMSize TellHandler();
ODMethod CMSize ReadHandler(CMPtr buffer, CMSize elementSize, CMCount theCount);
ODMethod CMSize WriteHandler(CMPtr buffer, CMSize elementSize, CMCount theCount);
ODMethod CMEofStatus EOFHandler();
ODMethod CMBoolean TruncHandler(CMSize containerSize);
ODMethod CMSize ContainerSizeHandler();
ODMethod void ReadLabelHandler(CMMagicBytes magicByteSequence,
CMContainerFlags *flags, CM_USHORT *bufSize,
CM_USHORT *majorVersion, CM_USHORT *minorVersion,
CMSize *tocOffset, CMSize *tocSize);
ODMethod void WriteLabelHandler(CMMagicBytes magicByteSequence,
CMContainerFlags flags, CM_USHORT bufSize,
CM_USHORT majorVersion, CM_USHORT minorVersion,
CMSize tocOffset, CMSize tocSize);
ODMethod CMValue ReturnParentValueHandler();
ODMethod CM_UCHAR* ReturnContainerNameHandler();
ODMethod CMType ReturnTargetTypeHandler(CMContainer container);
ODMethod void ExtractDataHandler(CMDataBuffer buffer,
CMSize size, CMPrivateData data);
ODMethod void FormatDataHandler(CMDataBuffer buffer,
CMSize size,
CMPrivateData data);
private:
void SaveZone();
void RestoreZone();
CMSession fSession;
ODHandle fData;
ODBoolean fAllocated;
CMSize fSize;
ODBoolean fSeekValid;
ODULong fSeekPos;
ODSLong fLastSeekOffset;
ODSShort fLastSeekMode;
ODBoolean fEOFReached;
THz fZone;
THz fCurZone;
};
#endif // _MEMHDR_