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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) 2004-2006 Sage Weil <sage@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 CEPH_MDS_ESESSION_H
#define CEPH_MDS_ESESSION_H
#include "common/config.h"
#include "include/types.h"
#include "../LogEvent.h"
class ESession : public LogEvent {
protected:
entity_inst_t client_inst;
bool open; // open or close
version_t cmapv{0}; // client map version
interval_set<inodeno_t> inos_to_free;
version_t inotablev{0};
interval_set<inodeno_t> inos_to_purge;
// Client metadata stored during open
client_metadata_t client_metadata;
public:
ESession() : LogEvent(EVENT_SESSION), open(false) { }
ESession(const entity_inst_t& inst, bool o, version_t v,
const client_metadata_t& cm) :
LogEvent(EVENT_SESSION),
client_inst(inst), open(o), cmapv(v), inotablev(0),
client_metadata(cm) { }
ESession(const entity_inst_t& inst, bool o, version_t v,
const interval_set<inodeno_t>& to_free, version_t iv,
const interval_set<inodeno_t>& to_purge) :
LogEvent(EVENT_SESSION), client_inst(inst), open(o), cmapv(v),
inos_to_free(to_free), inotablev(iv), inos_to_purge(to_purge) {}
void encode(bufferlist& bl, uint64_t features) const override;
void decode(bufferlist::const_iterator& bl) override;
void dump(Formatter *f) const override;
static void generate_test_instances(std::list<ESession*>& ls);
void print(std::ostream& out) const override {
if (open)
out << "ESession " << client_inst << " open cmapv " << cmapv;
else
out << "ESession " << client_inst << " close cmapv " << cmapv;
if (inos_to_free.size() || inos_to_purge.size())
out << " (" << inos_to_free.size() << " to free, v" << inotablev
<< ", " << inos_to_purge.size() << " to purge)";
}
void update_segment() override;
void replay(MDSRank *mds) override;
entity_inst_t get_client_inst() const {return client_inst;}
};
WRITE_CLASS_ENCODER_FEATURES(ESession)
#endif
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