src/server/PageInfo.cxx

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by www.databasecache.com                           *
   3  *   Contact: praba_tuty@databasecache.com                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15   ***************************************************************************/
  16 #include<Allocator.h>
  17 #include<os.h>
  18 #include<Config.h>
  19
  20 void PageInfo::setPageAsUsed(size_t offset)
  21 {
  22     isUsed_ = 1;
  23     hasFreeSpace_ = 1;
  24     nextPage_ = NULL;
  25     if (PAGE_SIZE > offset)
  26         nextPageAfterMerge_ = NULL;
  27     else
  28         nextPageAfterMerge_ = ((char*)this)+ offset;
  29 }
  30 void PageInfo::setFirstPageAsUsed()
  31 {
  32     isUsed_ = 1;
  33     hasFreeSpace_ = 1;
  34     nextPageAfterMerge_ = NULL;
  35     nextPage_ = NULL;
  36 }