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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_DUMPER_H_
#define JOURNAL_DUMPER_H_
#include "osd/OSDMap.h"
#include "osdc/Objecter.h"
#include "osdc/Journaler.h"
#include "msg/Messenger.h"
#include "auth/Auth.h"
#include "global/global_context.h"
/**
* This class lets you dump out an mds journal for troubleshooting or whatever.
*
* It was built to work with cmds so some of the design choices are random.
* To use, create a Dumper, call init(), and then call dump() with the name
* of the file to dump to.
*/
class Dumper : public Dispatcher {
public:
Objecter *objecter;
Journaler *journaler;
OSDMap *osdmap;
Messenger *messenger;
MonClient *monc;
Mutex lock;
SafeTimer timer;
int rank;
/*
* The messenger should be a valid Messenger. You should call bind()
* before passing it in, but not do anything else.
* The MonClient needs to be valid, and you should have called
* build_initial_monmap().
*/
Dumper(Messenger *messenger_, MonClient *monc_) :
Dispatcher(messenger_->cct),
objecter(NULL),
journaler(NULL),
osdmap(NULL),
messenger(messenger_),
monc(monc_),
lock("Dumper::lock"),
timer(g_ceph_context, lock),
rank(-1)
{ }
virtual ~Dumper();
bool ms_dispatch(Message *m) {
switch (m->get_type()) {
case CEPH_MSG_OSD_OPREPLY:
objecter->handle_osd_op_reply((MOSDOpReply *)m);
break;
case CEPH_MSG_OSD_MAP:
objecter->handle_osd_map((MOSDMap*)m);
break;
default:
return false;
}
return true;
}
bool ms_handle_reset(Connection *con) { return false; }
void ms_handle_remote_reset(Connection *con) {}
bool ms_get_authorizer(int dest_type, AuthAuthorizer **authorizer,
bool force_new);
void init(int rank);
void shutdown();
void dump(const char *dumpfile);
void undump(const char *dumpfile);
};
#endif /* JOURNAL_DUMPER_H_ */
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