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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef REFCONVERT_H
#define REFCONVERT_H
#include "kernel_types.h"
/**
* Convert BlockReference to BlockNumber
*/
inline
BlockNumber refToBlock(BlockReference ref){
return (BlockNumber)(ref >> 16);
}
/**
* Convert BlockReference to NodeId
*/
inline
NodeId refToNode(BlockReference ref){
return (NodeId)(ref & 0xFFFF);
}
/**
* Convert NodeId and BlockNumber to BlockReference
*/
inline
BlockReference numberToRef(BlockNumber bnr, NodeId proc){
return (((Uint32)bnr) << 16) + proc;
}
#endif
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