ceph/src/mds/events/EOpen.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_EOPEN_H
  16 #define CEPH_MDS_EOPEN_H
  17
  18 #include "../LogEvent.h"
  19 #include "EMetaBlob.h"
  20
  21 class EOpen : public LogEvent {
  22 public:
  23   EMetaBlob metablob;
  24   vector<inodeno_t> inos;
  25   vector<vinodeno_t> snap_inos;
  26
  27   EOpen() : LogEvent(EVENT_OPEN) { }
  28   explicit EOpen(MDLog *mdlog) :
  29     LogEvent(EVENT_OPEN), metablob(mdlog) { }
  30
  31   void print(ostream& out) const override {
  32     out << "EOpen " << metablob << ", " << inos.size() << " open files";
  33   }
  34
  35   EMetaBlob *get_metablob() override { return &metablob; }
  36
  37   void add_clean_inode(CInode *in) {
  38     if (!in->is_base()) {
  39       metablob.add_dir_context(in->get_projected_parent_dn()->get_dir());
  40       metablob.add_primary_dentry(in->get_projected_parent_dn(), 0, false);
  41       if (in->last == CEPH_NOSNAP)
  42         inos.push_back(in->ino());
  43       else
  44         snap_inos.push_back(in->vino());
  45     }
  46   }
  47   void add_ino(inodeno_t ino) {
  48     inos.push_back(ino);
  49   }
  50
  51   void encode(bufferlist& bl, uint64_t features) const override;
  52   void decode(bufferlist::iterator& bl) override;
  53   void dump(Formatter *f) const override;
  54   static void generate_test_instances(list<EOpen*>& ls);
  55
  56   void update_segment() override;
  57   void replay(MDSRank *mds) override;
  58 };
  59 WRITE_CLASS_ENCODER_FEATURES(EOpen)
  60
  61 #endif