1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
15 #ifndef CEPH_MDS_ESESSION_H
16 #define CEPH_MDS_ESESSION_H
18 #include "common/config.h"
19 #include "include/types.h"
21 #include "../LogEvent.h"
23 class ESession : public LogEvent {
25 entity_inst_t client_inst;
26 bool open; // open or close
27 version_t cmapv{0}; // client map version
29 interval_set<inodeno_t> inos;
30 version_t inotablev{0};
32 // Client metadata stored during open
33 std::map<std::string, std::string> client_metadata;
36 ESession() : LogEvent(EVENT_SESSION), open(false) { }
37 ESession(const entity_inst_t& inst, bool o, version_t v,
38 const std::map<std::string, std::string> &cm) :
39 LogEvent(EVENT_SESSION),
46 ESession(const entity_inst_t& inst, bool o, version_t v,
47 const interval_set<inodeno_t>& i, version_t iv) :
48 LogEvent(EVENT_SESSION),
52 inos(i), inotablev(iv) { }
54 void encode(bufferlist& bl, uint64_t features) const override;
55 void decode(bufferlist::iterator& bl) override;
56 void dump(Formatter *f) const override;
57 static void generate_test_instances(list<ESession*>& ls);
59 void print(ostream& out) const override {
61 out << "ESession " << client_inst << " open cmapv " << cmapv;
63 out << "ESession " << client_inst << " close cmapv " << cmapv;
65 out << " (" << inos.size() << " inos, v" << inotablev << ")";
68 void update_segment() override;
69 void replay(MDSRank *mds) override;
70 entity_inst_t get_client_inst() const {return client_inst;}
72 WRITE_CLASS_ENCODER_FEATURES(ESession)