122 lines
3.4 KiB
C++
122 lines
3.4 KiB
C++
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Microsoft Windows
|
||
|
|
// Copyright (C) Microsoft Corporation, 1992 - 2000.
|
||
|
|
//
|
||
|
|
// File: CIRCSTOB.HXX
|
||
|
|
//
|
||
|
|
// Contents: DownLevel Recoverable Storage Object.
|
||
|
|
//
|
||
|
|
// Classes: CiRcovStorageObj
|
||
|
|
//
|
||
|
|
// History: 04-Feb-1994 SrikantS Created.
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <prcstob.hxx>
|
||
|
|
#include <mmstrm.hxx>
|
||
|
|
#include <cistore.hxx>
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Class: CiRcovStorageObj ()
|
||
|
|
//
|
||
|
|
// Purpose: Recoverable Storage Object implementation for the downlevel
|
||
|
|
// content index.
|
||
|
|
//
|
||
|
|
// History: 2-10-94 srikants Created
|
||
|
|
// 2-13-98 kitmanh Added fReadOnly for CiRcovStorageObj
|
||
|
|
// constructor
|
||
|
|
// 2-17-98 kitmanh Added private member _fIsReadOnly
|
||
|
|
// 27-Oct-98 KLam Added cbDiskSpaceToLeave to constructor
|
||
|
|
// Added private member _cbDiskSpaceToLeave
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
class CiRcovStorageObj : public PRcovStorageObj
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
CiRcovStorageObj( CiStorage & storage,
|
||
|
|
WCHAR * wcsHdr,
|
||
|
|
WCHAR * wcsCopy1,
|
||
|
|
WCHAR * wcsCopy2,
|
||
|
|
ULONG cbDiskSpaceToLeave,
|
||
|
|
BOOL fReadOnly);
|
||
|
|
|
||
|
|
virtual ~CiRcovStorageObj();
|
||
|
|
|
||
|
|
void InithdrStrm() { _hdrStrm.InitFIsReadOnly( _fIsReadOnly ); }
|
||
|
|
|
||
|
|
void Open( CRcovStorageHdr::DataCopyNum n, BOOL fWrite );
|
||
|
|
|
||
|
|
void Close( CRcovStorageHdr::DataCopyNum n );
|
||
|
|
|
||
|
|
PMmStream & GetMmStream( CRcovStorageHdr::DataCopyNum n )
|
||
|
|
{
|
||
|
|
return *_apMmStrm[n];
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL IsOpen( CRcovStorageHdr::DataCopyNum n )
|
||
|
|
{
|
||
|
|
return _apMmStrm[n] != NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
CMmStreamBuf & GetMmStreamBuf( CRcovStorageHdr::DataCopyNum n )
|
||
|
|
{
|
||
|
|
Win4Assert( ( CRcovStorageHdr::idxOne == n ) ||
|
||
|
|
( CRcovStorageHdr::idxTwo == n ) );
|
||
|
|
|
||
|
|
if ( CRcovStorageHdr::idxOne == n )
|
||
|
|
return _sbufOne;
|
||
|
|
else
|
||
|
|
return _sbufTwo;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL IsMapped( CRcovStorageHdr::DataCopyNum n )
|
||
|
|
{
|
||
|
|
return 0 != GetMmStreamBuf( n ).Get();
|
||
|
|
}
|
||
|
|
|
||
|
|
void AcquireAccess( ExclusionType et ) { }
|
||
|
|
void ReleaseAccess() { }
|
||
|
|
|
||
|
|
void ReadHeader();
|
||
|
|
void WriteHeader();
|
||
|
|
|
||
|
|
BOOL IsReadOnly() { return _fIsReadOnly; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
PMmStream * QueryMmStream( CRcovStorageHdr::DataCopyNum n, BOOL fWritable );
|
||
|
|
|
||
|
|
WCHAR * _wcsCopy1;
|
||
|
|
WCHAR * _wcsCopy2; // Path names of the copy 1 and copy 2
|
||
|
|
// objects.
|
||
|
|
|
||
|
|
CMmStream _hdrStrm;
|
||
|
|
CMmStreamBuf _hdrSbuf; // Memory mapped stream and buffer for the
|
||
|
|
// header.
|
||
|
|
|
||
|
|
// Memory mapped stream buffers for the
|
||
|
|
// two copies.
|
||
|
|
// These two couldn't be an array of unwindable objects due to
|
||
|
|
// a compiler bug. It's probably fixed by now.
|
||
|
|
|
||
|
|
CMmStreamBuf _sbufOne;
|
||
|
|
CMmStreamBuf _sbufTwo;
|
||
|
|
|
||
|
|
PMmStream * _apMmStrm[CRcovStorageHdr::NUMCOPIES];
|
||
|
|
// Array of the two copies of memory
|
||
|
|
// mapped streams.
|
||
|
|
|
||
|
|
PStorage & _storage;
|
||
|
|
ULONG _cbDiskSpaceToLeave;
|
||
|
|
BOOL _fIsReadOnly;
|
||
|
|
};
|
||
|
|
|