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275 lines
10 KiB
C++
275 lines
10 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/******************************************************************************************
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* $Id: we_indextree.h 4450 2013-01-21 14:13:24Z rdempsey $
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*
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******************************************************************************************/
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/** @file */
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#ifndef _WE_INDEXTREE_H_
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#define _WE_INDEXTREE_H_
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#include <stdlib.h>
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#include <we_dbfileop.h>
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#include <we_index.h>
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#include <we_freemgr.h>
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#include <we_indexlist.h>
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#if defined(_MSC_VER) && defined(WRITEENGINEINDEXTREE_DLLEXPORT)
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#define EXPORT __declspec(dllexport)
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#else
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#define EXPORT
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#endif
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/** Namespace WriteEngine */
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namespace WriteEngine
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{
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/** Class ColumnOp */
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class IndexTree : public DbFileOp
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{
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public:
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/**
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* @brief Constructor
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*/
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EXPORT IndexTree();
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/**
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* @brief Default Destructor
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*/
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EXPORT ~IndexTree();
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/**
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* @brief A wrapper for the call to free manager
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*/
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EXPORT const int assignSegment( int segmentType, IdxEmptyListEntry* assignPtr, int no );
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/**
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* @brief Build empty index tree part
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*/
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EXPORT const int buildEmptyTreePart( const uint64_t key, const int width, const RID rid, const int startBitTestNo, const int offset = 0 );
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/**
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* @brief Build empty index branch
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*/
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EXPORT const int buildEmptyIndexTreeBranch( const uint64_t key, const int width, const RID rid, const int rootTestbitVal );
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/**
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* @brief Build exist index branch
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*/
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EXPORT const int buildExistIndexTreeBranch( const uint64_t key, const int width, const RID rid, const int rootTestbitVal, IdxBitmapPointerEntry bitmapEntry );
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/**
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* @brief Calculate bit test array
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*/
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EXPORT const int calculateBittestArray();
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/**
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* @brief Close index
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*/
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EXPORT void closeIndex();
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/**
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* @brief Clear index tree member variables
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*/
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void clear() { clearBlock( &m_rootBlock ); }
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/**
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* @brief Create index related files
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*/
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EXPORT const int createIndex( const FID treeFid, const FID listFid, const bool useFreeMgrFlag = true );
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/**
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* @brief Delete a value from an index
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*/
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EXPORT const int deleteIndex( const uint64_t key, const int width, const RID rid );
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/**
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* @brief Drop index related files
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*/
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const int dropIndex( const FID treeFid, const FID listFid )
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#ifdef BROKEN_BY_MULTIPLE_FILES_PER_OID
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{ m_cbTree.file.pFile = m_fileopTree.openFile(treeFid);
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m_cbList.file.pFile = m_fileopList.openFile(listFid);
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closeIndex(); m_useMultiCol = false; deleteFile( treeFid ); deleteFile( listFid ); return NO_ERROR; }
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#endif
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{ std::string segFile;
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m_cbTree.file.pFile = m_fileopTree.openFile(
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treeFid,0,0,0, segFile);
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m_cbList.file.pFile = m_fileopList.openFile(
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listFid,0,0,0, segFile);
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closeIndex(); m_useMultiCol = false; deleteFile( treeFid ); deleteFile( listFid ); return NO_ERROR; }
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/**
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* @brief Get the test bit value
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*/
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EXPORT const bool getTestbitValue( const uint64_t key, const int width, const int curTestNo, int* bittestVal );
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/**
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* @brief Get the match entry in the tree
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*/
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EXPORT const bool getTreeMatchEntry( DataBlock* block, const uint64_t sbid, const uint64_t entry, const int width,
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const int allocCount, const bool* entryMap, int* matchEntry, IdxBitTestEntry* checkEntry );
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/**
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* @brief Get the tree node summary information
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*/
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EXPORT const int getTreeNodeInfo( DataBlock* block, const uint64_t sbid, const uint64_t entry, const int width,
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const IdxTreeGroupType group, int* allocCount, int* realCount, bool* entryMap );
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/**
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* @brief Check index address pointer is empty or not
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*/
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EXPORT const bool isAddrPtrEmpty( void* pStruct, const IdxTreeEntryType entryType ) const;
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/**
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* @brief Check whether the tree is empty
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*/
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EXPORT const bool isTreeEmpty();
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/**
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* @brief Init index
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*/
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EXPORT const int initIndex( const FID treeFid, const FID listFid );
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/**
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* @brief Move tree entries
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*/
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EXPORT const int moveEntry( const uint64_t oldFbo, const uint64_t oldSbid, const uint64_t oldEntry, const int width, const uint64_t newFbo,
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const uint64_t newSbid, const uint64_t newEntry, const int newGroup, const int allocCount, bool* entryMap, int* moveCount, const int newAllocCount = 0 );
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/**
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* @brief Open index related files
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*/
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EXPORT const int openIndex( const FID treeFid, const FID listFid );
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/**
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* @brief Process index, including delete and search
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*/
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EXPORT const int processIndex( const uint64_t key, const int width, const RID rid, IdxEmptyListEntry& listHdrAddr, const bool bDelete = true );
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/**
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* @brief A wrapper for the call to free manager
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*/
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EXPORT const int releaseSegment( int segmentType, IdxEmptyListEntry* myPtr );
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/**
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* @brief Clean up index file
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*/
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EXPORT const int resetIndexFile( const FID treeFid, const FID listFid );
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/**
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* @brief Setup bitset by column
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*/
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EXPORT const int setBitsetColumn( void* val, const int pos, const int width, const ColType colType );
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/**
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* @brief Set bit test entry
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*/
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EXPORT void setBittestEntry( IdxBitTestEntry* bittestEntry, const uint64_t testbitVal, const uint64_t group, const uint64_t fbo, const uint64_t sbid, const uint64_t entry, constu int64_t entryType = BIT_TEST ) const;
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/**
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* @brief Set blank entry
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*/
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void setBlankEntry( void* pStruct ) const { memset( pStruct, 0, 8 ); }
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/**
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* @brief Set empty list ptr entry
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*/
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EXPORT void setEmptyListEntry( IdxEmptyListEntry* myEntry, const uint64_t group, const uint64_t fbo, const uint64_t sbid, const uint64_t entry ) const;
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/**
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* @brief Set transaction Id
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*/
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EXPORT void setTransId( const TxnID txnId ) { FileOp::setTransId( txnId ); m_cbTree.session.txnid = m_cbList.session.txnid = txnId; m_freeMgr.setTransId(txnId); m_listMgr.setTransId(txnId);}
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/**
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* @brief Set use brm flag
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*/
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/**
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* @brief Update a value in an index
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*/
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EXPORT const int updateIndex( const uint64_t key, const int width, const RID rid );
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EXPORT const int updateListFile( const uint64_t key, const int width, const RID rid, const int curLevel, const uint64_t group, const int allocCount, const int useCount, const int offset, const bool addFlag = false );
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// internal use functions
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EXPORT void clearTree( IdxTree* myTree );
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EXPORT void clearTreeNode( IdxTreeNode* myNode );
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const IdxTree& getTree() { return m_tree; }
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const DataBlock& getRootBlock() { return m_rootBlock; }
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const bool getUseMultiRid() { return m_useMultiRid; }
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EXPORT void setTreeHeader( IdxTree* myTree, const uint64_t key, const RID rid, const int width,
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const int testbitVal, const IdxBitmapPointerEntry bitmapEntry );
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EXPORT void setTreeNode( IdxTreeNode* myNode, const int level, const int allocCount, const int useCount,
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const int offset, const IdxBitTestEntry nextEntry, const IdxBitTestEntry curEntry );
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EXPORT const int updateIndexList( const uint64_t key, const int width, const RID rid, IdxEmptyListEntry* myEntry, const int no, const bool addFlag = false);
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EXPORT void printMemSubBlock( DataBlock* curBlock, const int sbid, const bool bNoZero = false );
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EXPORT void printSubBlock( const int fbo, const int sbid, const bool bNoZero = false );
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void setAssignFbo( const int fbo ) { m_assignFbo = fbo; } // internal testing purpose only
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void setUseFreeMgr( const bool val ) { m_useFreeMgr = val; }
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void setUseListMgr( const bool val ) { m_useListMgr = val; }
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void setUseMultiCol( const bool val ) { m_useMultiCol = val; }
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void setUseMultiRid( const bool val ) { m_useMultiRid = val; }
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void setCbTree(CommBlock& cb){ memcpy(&m_cbTree.session, &cb.session,
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sizeof(cb.session));
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memcpy(&m_cbTree.file, &cb.file,
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sizeof(cb.file)); }
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const CommBlock& getCbTree() const {return m_cbTree;}
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void setCbList(CommBlock& cb){memcpy(&m_cbList.session, &cb.session,
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sizeof(cb.session));
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memcpy(&m_cbList.file, &cb.file,
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sizeof(cb.file)); }
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const CommBlock& getCbList() const {return m_cbList;}
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DataBlock m_rootBlock; /** @brief This block contains sub block 0 and sub block 1 */
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CommBlock m_cbTree; /** @brief index tree */
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CommBlock m_cbList; /** @brief index list */
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IdxTree m_tree; /** @brief index tree node */
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FreeMgr m_freeMgr; /** @brief index free mgr */
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IndexList m_listMgr; /** @brief index list mgr */
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IdxMultiColKey m_multiColKey; /** @brief index multi-column key */
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IdxMultiRid m_multiRid; /** @brief index multi rids */
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FileOp m_fileopTree;
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FileOp m_fileopList;
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private:
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// internal testing flags
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bool m_useFreeMgr;
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bool m_useListMgr;
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bool m_useMultiCol;
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bool m_useMultiRid;
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int m_assignFbo;
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};
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} //end of namespace
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#undef EXPORT
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#endif // _WE_INDEXTREE_H_
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