ceph/src/mds/events/EExport.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_EEXPORT_H
  16 #define CEPH_EEXPORT_H
  17
  18 #include "common/config.h"
  19 #include "include/types.h"
  20
  21 #include "../MDSRank.h"
  22
  23 #include "EMetaBlob.h"
  24 #include "../LogEvent.h"
  25
  26 class EExport : public LogEvent {
  27 public:
  28   EMetaBlob metablob; // exported dir
  29 protected:
  30   dirfrag_t      base;
  31   set<dirfrag_t> bounds;
  32   mds_rank_t target;
  33
  34 public:
  35   EExport() :
  36     LogEvent(EVENT_EXPORT), target(MDS_RANK_NONE) { }
  37   EExport(MDLog *mdlog, CDir *dir, mds_rank_t t) :
  38     LogEvent(EVENT_EXPORT),
  39     base(dir->dirfrag()), target(t) { }
  40
  41   set<dirfrag_t> &get_bounds() { return bounds; }
  42
  43   void print(ostream& out) const override {
  44     out << "EExport " << base << " to mds." << target << " " << metablob;
  45   }
  46
  47   EMetaBlob *get_metablob() override { return &metablob; }
  48
  49   void encode(bufferlist& bl, uint64_t features) const override;
  50   void decode(bufferlist::const_iterator &bl) override;
  51   void dump(Formatter *f) const override;
  52   static void generate_test_instances(std::list<EExport*>& ls);
  53   void replay(MDSRank *mds) override;
  54
  55 };
  56 WRITE_CLASS_ENCODER_FEATURES(EExport)
  57
  58 #endif