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/* $Id: File.h,v 1.3 2003/04/24 23:52:36 terpstra Exp $
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* Master.h - Disk segment for commit'd inserts
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* Copyright (C) 2002 - Wesley W. Terpstra
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* Authors: 'Wesley W. Terpstra' <wesley@terpstra.ca>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2.1.
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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inline int categorize(long records)
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return static_cast<int>(floor(log(static_cast<double>(records+2))/log(2)));
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/** Use this file descriptor for operation
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File(const string& id = "", int fd_ = -1, const Parameters* p_ = 0);
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/** The id of the database.
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/** The number of blocks in this file
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/** The classification based on size for this file
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/** Always succeeds */
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auto_ptr<Source> openBlock(long block, bool forward);
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friend class FileSource;