]>
git.proxmox.com Git - ceph.git/blob - ceph/src/mds/events/EFragment.h
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_EFRAGMENT_H
16 #define CEPH_MDS_EFRAGMENT_H
18 #include "../LogEvent.h"
19 #include "EMetaBlob.h"
21 struct dirfrag_rollback
{
23 dirfrag_rollback() { }
24 void encode(bufferlist
& bl
) const;
25 void decode(bufferlist::const_iterator
& bl
);
27 WRITE_CLASS_ENCODER(dirfrag_rollback
)
29 class EFragment
: public LogEvent
{
35 __s32 bits
{0}; // positive for split (from basefrag), negative for merge (to basefrag)
36 frag_vec_t orig_frags
;
39 EFragment() : LogEvent(EVENT_FRAGMENT
) { }
40 EFragment(MDLog
*mdlog
, int o
, dirfrag_t df
, int b
) :
41 LogEvent(EVENT_FRAGMENT
),
42 op(o
), ino(df
.ino
), basefrag(df
.frag
), bits(b
) { }
44 void print(ostream
& out
) const override
{
45 out
<< "EFragment " << op_name(op
) << " " << ino
<< " " << basefrag
<< " by " << bits
<< " " << metablob
;
52 OP_FINISH
= 4 // finish deleting orphan dirfrags
54 static std::string_view
op_name(int o
) {
56 case OP_PREPARE
: return "prepare";
57 case OP_COMMIT
: return "commit";
58 case OP_ROLLBACK
: return "rollback";
59 case OP_FINISH
: return "finish";
60 default: return "???";
64 void add_orig_frag(frag_t df
, dirfrag_rollback
*drb
=NULL
) {
66 orig_frags
.push_back(df
);
68 encode(*drb
, rollback
);
71 EMetaBlob
*get_metablob() override
{ return &metablob
; }
73 void encode(bufferlist
&bl
, uint64_t features
) const override
;
74 void decode(bufferlist::const_iterator
&bl
) override
;
75 void dump(Formatter
*f
) const override
;
76 static void generate_test_instances(std::list
<EFragment
*>& ls
);
77 void replay(MDSRank
*mds
) override
;
79 WRITE_CLASS_ENCODER_FEATURES(EFragment
)