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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2010 Greg Farnum <gregf@hq.newdream.net>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*/
#ifndef JOURNAL_RESETTER_H_
#define JOURNAL_RESETTER_H_
#include "MDSUtility.h"
class Journaler;
/**
* This class lets you reset an mds journal for troubleshooting or whatever.
*
* To use, create a Resetter, call init(), and then call reset() with the name
* of the file to dump to.
*/
class Resetter : public MDSUtility {
private:
mds_role_t role;
inodeno_t ino;
bool is_mdlog;
protected:
int _write_reset_event(Journaler *journaler);
public:
Resetter() {}
~Resetter() {}
int init(mds_role_t role_, const std::string &type, bool hard);
/**
* For use when no journal header/pointer was present: write one
* out from scratch.
*/
int reset_hard();
int reset();
};
#endif /* JOURNAL_RESETTER_H_ */
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