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_ESUBTREEMAP_H
16 #define CEPH_MDS_ESUBTREEMAP_H
18 #include "../LogEvent.h"
19 #include "EMetaBlob.h"
21 class ESubtreeMap : public LogEvent {
24 map<dirfrag_t, vector<dirfrag_t> > subtrees;
25 set<dirfrag_t> ambiguous_subtrees;
29 ESubtreeMap() : LogEvent(EVENT_SUBTREEMAP), expire_pos(0), event_seq(0) { }
31 void print(ostream& out) const override {
32 out << "ESubtreeMap " << subtrees.size() << " subtrees "
33 << ", " << ambiguous_subtrees.size() << " ambiguous "
37 EMetaBlob *get_metablob() override { return &metablob; }
39 void encode(bufferlist& bl, uint64_t features) const override;
40 void decode(bufferlist::iterator& bl) override;
41 void dump(Formatter *f) const override;
42 static void generate_test_instances(list<ESubtreeMap*>& ls);
44 void replay(MDSRank *mds) override;
46 WRITE_CLASS_ENCODER_FEATURES(ESubtreeMap)