91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: dindex.hxx
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//
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// Contents: Disk Index - Base class for on disk indexes
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// (ShadowIndex, MasterIndex and MasterMergeIndex)
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//
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// Classes: CDiskIndex
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//
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// Functions:
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//
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// History: 8-18-94 srikants Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <pstore.hxx>
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#include <perfobj.hxx>
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#include <frmutils.hxx>
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#include "index.hxx"
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#include "physidx.hxx"
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class CIndexSnapshot;
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class CKeyList;
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class CRWStore;
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class CIndexRecord;
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class CPartition;
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//+---------------------------------------------------------------------------
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//
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// Class: CDiskIndex (pi)
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//
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// Purpose: Encapsulate directory and give access to pages
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//
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// Interface:
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//
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// History: 20-Apr-91 KyleP Added Merge method
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// 03-Apr-91 BartoszM Created stub.
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// 18-Aug-94 SrikantS Introduced between CIndex and
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//
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//
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//----------------------------------------------------------------------------
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class CDiskIndex : public CIndex
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{
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DECLARE_UNWIND
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public:
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enum EDiskIndexType { eShadow, eMaster };
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CDiskIndex( INDEXID iid, EDiskIndexType idxType )
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: CIndex( iid )
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{
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if ( eMaster == idxType )
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MakeMaster();
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else MakeShadow();
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END_CONSTRUCTION( CDiskIndex );
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}
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CDiskIndex( INDEXID iid, EDiskIndexType idxType, WORKID widMax )
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: CIndex( iid, widMax, eMaster == idxType )
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{
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END_CONSTRUCTION( CDiskIndex );
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}
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virtual void Merge( CIndexSnapshot& indSnap,
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const CPartition & partn,
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CCiFrmPerfCounter & mergeProgress,
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BOOL fGetRW ) = 0;
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virtual WORKID ObjectId() const = 0;
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virtual void AbortMerge() = 0;
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virtual void ClearAbortMerge() = 0;
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virtual void FillRecord ( CIndexRecord& record ) = 0;
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#if CIDBG == 1
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void VerifyContents();
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#endif
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};
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