158 lines
2.9 KiB
C++
158 lines
2.9 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1992.
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//
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// File: INDSNAP.HXX
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//
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// Contents: Array of Indexes
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//
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// Classes: CIndexSnapshot
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//
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// History: 28-Apr-92 BartoszM Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <curstk.hxx>
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#include "index.hxx"
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#include "mmerglog.hxx"
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enum MergeType
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{
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mtMaster,
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mtShadow,
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mtWordlist,
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mtAnnealing,
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mtIncrBackup,
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mtDeletes
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};
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class CPartition;
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class CResManager;
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class CFreshTest;
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class CKeyCursor;
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class CIndexSnapshot
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{
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public:
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CIndexSnapshot (CResManager& resman);
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CIndexSnapshot (CIndexSnapshot& src );
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~CIndexSnapshot ();
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void LokInit( CPartition& part, MergeType mt );
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void LokInitForBackup( CPartition & part, BOOL fFull );
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void LokRestart( CPartition & part, PRcovStorageObj & mMergeLog );
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void Init( unsigned cPart, PARTITIONID* aPartId, ULONG cPendingUpdates, ULONG* pFlags );
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CKeyCursor* QueryMergeCursor(const CKey * pKey = 0);
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void AppendPendingUpdates( XCursor & cur );
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CIndex* Get ( unsigned i )
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{
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ciAssert(i < _cInd );
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return(_apIndex[i]);
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}
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INDEXID GetId ( unsigned i ) const
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{
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ciAssert ( i < _cInd );
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return(_apIndex[i]->GetId());
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}
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USN GetUsn ( unsigned i ) const
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{
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ciAssert ( i < _cInd );
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return(_apIndex[i]->Usn());
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}
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WORKID MaxWorkId();
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unsigned TotalSizeInPages();
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CFreshTest* GetFresh()
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{
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return(_pFreshTest);
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}
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unsigned Count() const
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{
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return(_cInd);
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}
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CIndex ** LokGiveIndexes( unsigned & cInd );
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void LokTakeIndexes( CIndexSnapshot & src );
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void LokInitFreshTest();
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void SetFreshTest( CFreshTest * pFreshTest )
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{
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Win4Assert( 0 == _pFreshTest );
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_pFreshTest = pFreshTest;
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}
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void ResetFreshTest()
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{
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_pFreshTest = 0;
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}
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CIndex ** LokGetIndexes( unsigned & cind )
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{
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cind = _cInd;
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return _apIndex;
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}
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private:
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CFreshTest* _pFreshTest;
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CIndex** _apIndex;
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unsigned _cInd;
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CCurStack _curPending; // For pending updates
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CResManager& _resman;
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};
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class SIndexSnapshot
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{
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public:
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SIndexSnapshot( CIndexSnapshot * pIndSnap ) : _pIndSnap(pIndSnap)
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{
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END_CONSTRUCTION( SIndexSnapshot );
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}
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~SIndexSnapshot()
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{
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delete _pIndSnap;
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}
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CIndexSnapshot* operator->() { return _pIndSnap; }
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CIndexSnapshot& operator*() { return *_pIndSnap; }
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CIndexSnapshot * Acquire()
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{
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CIndexSnapshot *pTemp = _pIndSnap;
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_pIndSnap = 0;
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return(pTemp);
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}
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BOOL operator !() { return 0 == _pIndSnap; }
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private:
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CIndexSnapshot * _pIndSnap;
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};
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