204 lines
5 KiB
C++
204 lines
5 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: PARTLST.HXX
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//
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// Contents: Partition List
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//
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// Classes: CPartList
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//
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// History: 28-Mar-91 BartoszM Created.
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//
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//----------------------------------------------------------------------------
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#pragma once
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//+---------------------------------------------------------------------------
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//
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// Class: CPartList (pl)
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//
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// Purpose: List of partitions in Content Index
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//
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// Interface: CPartition
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// ~CPartition
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//
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// History: 28-Mar-91 BartoszM Created.
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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#include <pidxtbl.hxx>
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#include <frmutils.hxx>
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#include "prtiflst.hxx"
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class CPartition;
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class PStorage;
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class CContentIndex;
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class CTransaction;
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class CMergeTrans;
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class CIndexId;
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class CKeyList;
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class CDiskIndex;
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class CResManager;
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typedef CDynArrayInPlace<INDEXID> CIndexIdList;
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const unsigned maxPartitions = 255;
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// const PARTITIONID partidDefault = 1;
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DECL_DYNARRAY( CPartArray, CPartition );
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class CIndexDesc
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{
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public:
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inline CIndexDesc( CIndexRecord & rec )
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: _iid( rec.Iid() ),
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_objectid( rec.ObjectId() )
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{
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}
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inline INDEXID const Iid() { return _iid; }
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inline WORKID const ObjectId() { return _objectid; }
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public:
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INDEXID _iid;
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WORKID _objectid;
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};
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DECL_DYNSTACK( CIidStack, CIndexDesc );
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const LONGLONG eSigPartList = 0x5453494c54524150i64; // "PARTLIST"
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class CPartList : INHERIT_UNWIND
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{
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DECLARE_UNWIND
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friend class CPartIter;
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friend class CPartIdIter;
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public:
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CPartList ( PStorage& storage, PIndexTable & idxTab,
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XPtr<CKeyList> & sKeylist, CTransaction& xact,
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CCiFrameworkParams & frmwrkParams );
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CPartition* LokGetPartition ( PARTITIONID partid );
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void LokSwapIndexes( CMergeTrans& xact,
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PARTITIONID partid,
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CDiskIndex * indexNew,
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CShadowMergeSwapInfo & info );
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void LokSwapIndexes( CMergeTrans& xact,
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PARTITIONID partid,
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CDiskIndex * indexNew,
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CMasterMergeSwapInfo & info,
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CKeyList const * pOldKeyList,
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CKeyList const * pNewKeyList
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);
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void LokRemoveIndex ( CIndexId iid );
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unsigned LokWlCount ();
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unsigned LokIndexCount ();
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unsigned LokIndexSize ();
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#ifdef KEYLIST_ENABLED
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void LokSwapKeyList( CKeyList const * pOldKeyList,
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CKeyList const * pNewKeyList );
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void LokRemoveKeyList( CKeyList const * pKeyList );
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#endif // KEYLIST_ENABLED
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WORKID GetChangeLogObjectId( PARTITIONID partid );
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void RestoreMMergeState( CResManager & resman, PStorage & storage );
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void LokAddIt( WORKID objectId, IndexType it, PARTITIONID partid );
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#ifdef CIEXTMODE
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void CiExtDump(void *ciExtSelf);
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#endif
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private:
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CIndex* RestoreIndex ( CIndexRecord & rec,
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CIndexIdList & iidsInUse,
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CIidStack & stkZombie);
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PARTITIONID MaxPartid () const
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{
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return (PARTITIONID)(_partArray.Size() - 1);
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}
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BOOL IsValid ( PARTITIONID partid ) const
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{
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return ( partid < _partArray.Size() &&
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_partArray.Get(partid) != 0 );
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}
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const LONGLONG _sigPartList;
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CCiFrameworkParams & _frmwrkParams;
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PIndexTable & _idxTab; // index table
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SPartInfoList _partInfoList;
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CPartArray _partArray; // a dynamic array of partition pointers
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CPartIter
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//
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// Purpose: Partition Iterator
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//
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// History: 23-Jul-91 BartoszM Created.
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//
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//----------------------------------------------------------------------------
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class CPartIter
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{
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public:
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void LokInit( CPartList& partList );
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void LokAdvance ( CPartList& partLst );
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BOOL LokAtEnd() { return _curPartId == partidInvalid; }
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CPartition* LokGet() { return _pPart; }
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private:
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CPartition* _pPart;
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PARTITIONID _curPartId;
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CPartIdIter
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//
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// Purpose: Partition ID Iterator
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//
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// History: 23-Jul-91 BartoszM Created.
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//
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//----------------------------------------------------------------------------
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class CPartIdIter
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{
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public:
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void LokInit( CPartList& partList );
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void LokAdvance ( CPartList& partList );
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BOOL LokAtEnd() { return _curPartId == partidInvalid; }
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PARTITIONID LokGetId () { return _curPartId; }
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private:
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PARTITIONID _curPartId;
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};
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