mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-05-31 11:41:14 +03:00
5fce19df0a
WE changes for SQL DML and DDL operations Changes for bulk operations Changes for scanning operations Cleanup
142 lines
4.0 KiB
C++
142 lines
4.0 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_blockop.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_BLOCKOP_H_
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#define _WE_BLOCKOP_H_
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#include <we_obj.h>
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#if defined(_MSC_VER) && defined(WRITEENGINE_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 BlockOp */
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class BlockOp : public WEObj
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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 BlockOp();
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/**
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* @brief Default Destructor
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*/
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EXPORT ~BlockOp();
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/**
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* @brief Calculate the location of Row ID
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*/
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EXPORT bool calculateRowId( RID rowId,
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const int epb,
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const int width,
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int& fbo,
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int& bio ) const;
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/**
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* @brief Calculate the location of Row ID
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*/
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void clearBlock( DataBlock* block )
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{
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memset(block->data, 0, sizeof(block->data));
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block->no = -1;
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block->dirty = false;
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}
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/**
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* @brief Get bit value after shift
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*/
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uint64_t getBitValue( uint64_t val,
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int shiftBit,
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uint64_t mask ) const
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{
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return ( val >> shiftBit ) & mask ;
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}
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/**
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* @brief Get correct row width
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*/
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EXPORT int getCorrectRowWidth( const execplan::CalpontSystemCatalog::ColDataType colDataType,
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const int width ) const;
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/**
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* @brief Get an empty row value
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*/
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EXPORT const uint8_t* getEmptyRowValue(const execplan::CalpontSystemCatalog::ColDataType colDataType,
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const int width) const;
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/**
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* @brief Calculate row id
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*/
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EXPORT RID getRowId( const long fbo,
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const int width,
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const int rowPos ) const;
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/**
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* @brief Get buffer value
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*/
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EXPORT void readBufValue( const unsigned char* buf,
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void* val, const short width ) const;
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/**
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* @brief Reset a buffer
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*/
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EXPORT void resetBuf( unsigned char* buf,
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const int bufSize ) const;
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/**
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* @brief Fill buffer with empty values
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*/
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EXPORT void static setEmptyBuf( unsigned char* buf,
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const int bufSize,
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const uint8_t* emptyVal,
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const int width );
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/**
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* @brief Set a value in a buffer
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*/
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EXPORT void writeBufValue( unsigned char* buf,
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const void* val,
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const size_t width,
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const bool clear = false ) const;
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EXPORT void findTypeHandler( const int colWidth,
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const execplan::CalpontSystemCatalog::ColDataType colDataType);
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private:
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const datatypes::TypeHandler* m_typeHandler;
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};
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} //end of namespace
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#undef EXPORT
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#endif // _WE_BLOCKOP_H_
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