ceph/src/mds/events/EUpdate.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
   7  *
   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.
  12  *
  13  */
  14
  15 #ifndef CEPH_MDS_EUPDATE_H
  16 #define CEPH_MDS_EUPDATE_H
  17
  18 #include <string_view>
  19
  20 #include "../LogEvent.h"
  21 #include "EMetaBlob.h"
  22
  23 class EUpdate : public LogEvent {
  24 public:
  25   EMetaBlob metablob;
  26   string type;
  27   bufferlist client_map;
  28   version_t cmapv;
  29   metareqid_t reqid;
  30   bool had_peers;
  31
  32   EUpdate() : LogEvent(EVENT_UPDATE), cmapv(0), had_peers(false) { }
  33   EUpdate(MDLog *mdlog, std::string_view s) :
  34     LogEvent(EVENT_UPDATE),
  35     type(s), cmapv(0), had_peers(false) { }
  36
  37   void print(ostream& out) const override {
  38     if (type.length())
  39       out << "EUpdate " << type << " ";
  40     out << metablob;
  41   }
  42
  43   EMetaBlob *get_metablob() override { return &metablob; }
  44
  45   void encode(bufferlist& bl, uint64_t features) const override;
  46   void decode(bufferlist::const_iterator& bl) override;
  47   void dump(Formatter *f) const override;
  48   static void generate_test_instances(std::list<EUpdate*>& ls);
  49
  50   void update_segment() override;
  51   void replay(MDSRank *mds) override;
  52 };
  53 WRITE_CLASS_ENCODER_FEATURES(EUpdate)
  54
  55 #endif