ceph/src/mds/events/EImportStart.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_EIMPORTSTART_H
  16 #define CEPH_EIMPORTSTART_H
  17
  18 #include "common/config.h"
  19 #include "include/types.h"
  20
  21 class MDLog;
  22 class MDSRank;
  23
  24 #include "EMetaBlob.h"
  25 #include "../LogEvent.h"
  26
  27 class EImportStart : public LogEvent {
  28 protected:
  29   dirfrag_t base;
  30   vector<dirfrag_t> bounds;
  31   mds_rank_t from;
  32
  33 public:
  34   EMetaBlob metablob;
  35   bufferlist client_map;  // encoded map<__u32,entity_inst_t>
  36   version_t cmapv{0};
  37
  38   EImportStart(MDLog *log, dirfrag_t di, vector<dirfrag_t>& b, mds_rank_t f) :
  39     LogEvent(EVENT_IMPORTSTART),
  40     base(di), bounds(b), from(f), metablob(log) { }
  41   EImportStart() :
  42     LogEvent(EVENT_IMPORTSTART), from(MDS_RANK_NONE) { }
  43
  44   void print(ostream& out) const override {
  45     out << "EImportStart " << base << " from mds." << from << " " << metablob;
  46   }
  47
  48   EMetaBlob *get_metablob() override { return &metablob; }
  49
  50   void encode(bufferlist &bl, uint64_t features) const override;
  51   void decode(bufferlist::iterator &bl) override;
  52   void dump(Formatter *f) const override;
  53   static void generate_test_instances(list<EImportStart*>& ls);
  54
  55   void update_segment() override;
  56   void replay(MDSRank *mds) override;
  57
  58 };
  59 WRITE_CLASS_ENCODER_FEATURES(EImportStart)
  60
  61 #endif