backends/flint/flint_check.h

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/* flint_check.h: Btree checking
 *
 * Copyright 1999,2000,2001 BrightStation PLC
 * Copyright 2002 Ananova Ltd
 * Copyright 2002,2004,2005,2006,2008 Olly Betts
 * Copyright 2008 Lemur Consulting Ltd
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

#ifndef OM_HGUARD_FLINT_CHECK_H
#define OM_HGUARD_FLINT_CHECK_H

#include "flint_table.h"
#include "noreturn.h"

#include <iostream>
#include <string>

class BtreeCheck : public FlintTable {
    public:
        static void check(const char * tablename, const std::string & path,
                          int opts, std::ostream &out = std::cout);
    private:
        BtreeCheck(const char * tablename_, const std::string &path_,
                   bool readonly, std::ostream &out_)
            : FlintTable(tablename_, path_, readonly), out(out_) { }

        void block_check(Cursor_ * C_, int j, int opts);
        int block_usage(const byte * p) const;
        void report_block(int m, int n, const byte * p) const;
        void report_block_full(int m, int n, const byte * p) const;
        void report_cursor(int N, const Cursor_ *C_) const;

        XAPIAN_NORETURN(void failure(int n) const);
        void print_key(const byte * p, int c, int j) const;
        void print_tag(const byte * p, int c, int j) const;
        void print_spaces(int n) const;
        void print_bytes(int n, const byte * p) const;

        std::ostream &out;
};

#define OPT_SHORT_TREE  1
#define OPT_FULL_TREE   2
#define OPT_SHOW_BITMAP 4
#define OPT_SHOW_STATS  8

#endif /* OM_HGUARD_FLINT_CHECK_H */

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