mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
157 lines
2.9 KiB
157 lines
2.9 KiB
//+---------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 1991 - 1992.
|
|
//
|
|
// File: INDSNAP.HXX
|
|
//
|
|
// Contents: Array of Indexes
|
|
//
|
|
// Classes: CIndexSnapshot
|
|
//
|
|
// History: 28-Apr-92 BartoszM Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
#include <curstk.hxx>
|
|
|
|
#include "index.hxx"
|
|
#include "mmerglog.hxx"
|
|
|
|
enum MergeType
|
|
{
|
|
mtMaster,
|
|
mtShadow,
|
|
mtWordlist,
|
|
mtAnnealing,
|
|
mtIncrBackup,
|
|
mtDeletes
|
|
};
|
|
|
|
class CPartition;
|
|
class CResManager;
|
|
class CFreshTest;
|
|
class CKeyCursor;
|
|
|
|
class CIndexSnapshot
|
|
{
|
|
public:
|
|
|
|
CIndexSnapshot (CResManager& resman);
|
|
|
|
CIndexSnapshot (CIndexSnapshot& src );
|
|
|
|
~CIndexSnapshot ();
|
|
|
|
void LokInit( CPartition& part, MergeType mt );
|
|
|
|
void LokInitForBackup( CPartition & part, BOOL fFull );
|
|
|
|
void LokRestart( CPartition & part, PRcovStorageObj & mMergeLog );
|
|
|
|
void Init( unsigned cPart, PARTITIONID* aPartId, ULONG cPendingUpdates, ULONG* pFlags );
|
|
|
|
CKeyCursor* QueryMergeCursor(const CKey * pKey = 0);
|
|
|
|
void AppendPendingUpdates( XCursor & cur );
|
|
|
|
CIndex* Get ( unsigned i )
|
|
{
|
|
ciAssert(i < _cInd );
|
|
return(_apIndex[i]);
|
|
}
|
|
|
|
INDEXID GetId ( unsigned i ) const
|
|
{
|
|
ciAssert ( i < _cInd );
|
|
return(_apIndex[i]->GetId());
|
|
}
|
|
|
|
USN GetUsn ( unsigned i ) const
|
|
{
|
|
ciAssert ( i < _cInd );
|
|
return(_apIndex[i]->Usn());
|
|
}
|
|
|
|
WORKID MaxWorkId();
|
|
|
|
unsigned TotalSizeInPages();
|
|
|
|
CFreshTest* GetFresh()
|
|
{
|
|
return(_pFreshTest);
|
|
}
|
|
|
|
unsigned Count() const
|
|
{
|
|
return(_cInd);
|
|
}
|
|
|
|
CIndex ** LokGiveIndexes( unsigned & cInd );
|
|
|
|
void LokTakeIndexes( CIndexSnapshot & src );
|
|
|
|
void LokInitFreshTest();
|
|
|
|
void SetFreshTest( CFreshTest * pFreshTest )
|
|
{
|
|
Win4Assert( 0 == _pFreshTest );
|
|
_pFreshTest = pFreshTest;
|
|
}
|
|
|
|
void ResetFreshTest()
|
|
{
|
|
_pFreshTest = 0;
|
|
}
|
|
|
|
CIndex ** LokGetIndexes( unsigned & cind )
|
|
{
|
|
cind = _cInd;
|
|
return _apIndex;
|
|
}
|
|
|
|
private:
|
|
|
|
CFreshTest* _pFreshTest;
|
|
CIndex** _apIndex;
|
|
unsigned _cInd;
|
|
|
|
CCurStack _curPending; // For pending updates
|
|
|
|
CResManager& _resman;
|
|
};
|
|
|
|
class SIndexSnapshot
|
|
{
|
|
public:
|
|
|
|
SIndexSnapshot( CIndexSnapshot * pIndSnap ) : _pIndSnap(pIndSnap)
|
|
{
|
|
END_CONSTRUCTION( SIndexSnapshot );
|
|
}
|
|
|
|
~SIndexSnapshot()
|
|
{
|
|
delete _pIndSnap;
|
|
}
|
|
|
|
CIndexSnapshot* operator->() { return _pIndSnap; }
|
|
|
|
CIndexSnapshot& operator*() { return *_pIndSnap; }
|
|
|
|
CIndexSnapshot * Acquire()
|
|
{
|
|
CIndexSnapshot *pTemp = _pIndSnap;
|
|
_pIndSnap = 0;
|
|
return(pTemp);
|
|
}
|
|
|
|
BOOL operator !() { return 0 == _pIndSnap; }
|
|
|
|
private:
|
|
|
|
CIndexSnapshot * _pIndSnap;
|
|
};
|
|
|