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/*++
� 1998 Seagate Software, Inc. All rights reserved
Module Name:
RmsSInfo.h
Abstract:
Declaration of the CRmsStorageInfo class
Author:
Brian Dodd [brian] 15-Nov-1996
Revision History:
--*/
#ifndef _RMSSINFO_
#define _RMSSINFO_
#include "resource.h" // resource symbols
#include "RmsObjct.h" // CRmsComObject
/*++
Class Name:
CRmsStorageInfo
Class Description:
A CRmsStorageInfo represents storage information about a Cartridge, Partition, or MediaSet. Various statistics about an element are kept for an object of this type. These include the number of times a Cartridge, or Partition has been put into the element or taken from (get) the element.
--*/
class CRmsStorageInfo : public CComDualImpl<IRmsStorageInfo, &IID_IRmsStorageInfo, &LIBID_RMSLib>, public CRmsComObject{public: CRmsStorageInfo();
// CRmsStorageInfo
public:
HRESULT GetSizeMax(ULARGE_INTEGER* pSize); HRESULT Load(IStream* pStream); HRESULT Save(IStream* pStream, BOOL clearDirty);
HRESULT CompareTo(IUnknown* pCollectable, SHORT* pResult);
HRESULT Test(USHORT *pPassed, USHORT *pFailed);
// IRmsStorageInfo
public: STDMETHOD(GetMountCounters)(LONG *pReads, LONG *pWrites);
STDMETHOD(GetBytesRead2)(LONG *pReadHi, LONG *pReadLo); STDMETHOD(GetBytesRead)(LONGLONG *pRead); STDMETHOD(SetBytesRead2)(LONG readHi, LONG readLo); STDMETHOD(SetBytesRead)(LONGLONG read); STDMETHOD(IncrementBytesRead)(LONG val);
STDMETHOD(GetBytesWritten2)(LONG *pWriteHi, LONG *pWriteLo); STDMETHOD(GetBytesWritten)(LONGLONG *pWritten); STDMETHOD(SetBytesWritten2)(LONG writeHi, LONG writeLo); STDMETHOD(SetBytesWritten)(LONGLONG written); STDMETHOD(IncrementBytesWritten)(LONG val);
STDMETHOD(GetCapacity2)(LONG *pCapHi, LONG *pCapLo); STDMETHOD(GetCapacity)(LONGLONG *pCap); STDMETHOD(GetUsedSpace2)(LONG *pUsedHi, LONG *pUsedLo); STDMETHOD(GetUsedSpace)(LONGLONG *pUsed); STDMETHOD(GetLargestFreeSpace2)(LONG *pFreeHi, LONG *pFreeLo); STDMETHOD(GetLargestFreeSpace)(LONGLONG *pFree);
STDMETHOD(SetCapacity)(IN LONGLONG cap); STDMETHOD(SetUsedSpace)(IN LONGLONG used); STDMETHOD(SetFreeSpace)(IN LONGLONG free);
STDMETHOD(ResetCounters)(void); // STDMETHOD(ResetAllCounters)(void) = 0;
STDMETHOD(GetResetCounterTimestamp)(DATE *pDate); STDMETHOD(GetLastReadTimestamp)(DATE *pDate); STDMETHOD(GetLastWriteTimestamp)(DATE *pDate); STDMETHOD(GetCreatedTimestamp)(DATE *pDate);
////////////////////////////////////////////////////////////////////////////////////////
//
// data members
//
protected:
enum { // Class specific constants:
//
Version = 1, // Class version, this should be
// incremented each time the
// the class definition changes.
}; //
LONG m_readMountCounter; // A resetable counter holding
// the number of times the storage object
// has been mounted for read access.
LONG m_writeMountCounter; // A resetable counter holding
// the number of times the storage object
// has been mounted for write access.
LONGLONG m_bytesWrittenCounter; // Amount of data written to a storage
// object.
// Note: For some devices this has to be
// provided by the application.
LONGLONG m_bytesReadCounter; // Amount of data read from a storage
// object.
// Note: For some devices this has to be
// provided by the application.
LONGLONG m_capacity; // The total capacity, in bytes, of the
// storage object. This is a best
// guess for tape media. For media, the
// value is usually provided by the device driver.
LONGLONG m_usedSpace; // A calculated value that represents the
// effective used space in the storage
// object, in bytes. It is not necessarily
// equal to the difference between the
// capacity and largest free space. For
// example, compressible media can effectively
// hold significantly more data that non-compressible
// media. In this case the free space is a
// function of both compression ratio of the data
// and the number of bytes written to the media.
// Deleted files must be accounted for.
LONGLONG m_largestFreeSpace; // Largest usable free space in the
// storage object, in bytes. For media,
// the value is usually provided
// by the device driver. Negative numbers
// indicate last known value for free space.
DATE m_resetCounterTimestamp;// The date the counters were reset.
DATE m_lastReadTimestamp; // The date of last access for read.
DATE m_lastWriteTimestamp; // The date of last access of write.
DATE m_createdTimestamp; // The date the storage object was created.
};
#endif // _RMSSINFO_
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