~ubuntu-branches/ubuntu/precise/ceph/precise-proposed

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
// vim: ts=8 sw=2 smarttab
/*
 * Ceph - scalable distributed file system
 *
 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1, as published by the Free Software 
 * Foundation.  See file COPYING.
 * 
 */

#ifndef CEPH_MDS_ETABLESERVER_H
#define CEPH_MDS_ETABLESERVER_H

#include "common/config.h"
#include "include/types.h"

#include "../mds_table_types.h"
#include "../LogEvent.h"

struct ETableServer : public LogEvent {
  __u16 table;
  __s16 op;
  uint64_t reqid;
  __s32 bymds;
  bufferlist mutation;
  version_t tid;
  version_t version;

  ETableServer() : LogEvent(EVENT_TABLESERVER) { }
  ETableServer(int t, int o, uint64_t ri, int m, version_t ti, version_t v) :
    LogEvent(EVENT_TABLESERVER),
    table(t), op(o), reqid(ri), bymds(m), tid(ti), version(v) { }

  void encode(bufferlist& bl) const {
    __u8 struct_v = 2;
    ::encode(struct_v, bl);
    ::encode(stamp, bl);
    ::encode(table, bl);
    ::encode(op, bl);
    ::encode(reqid, bl);
    ::encode(bymds, bl);
    ::encode(mutation, bl);
    ::encode(tid, bl);
    ::encode(version, bl);
  }
  void decode(bufferlist::iterator &bl) {
    __u8 struct_v;
    ::decode(struct_v, bl);
    if (struct_v >= 2)
      ::decode(stamp, bl);
    ::decode(table, bl);
    ::decode(op, bl);
    ::decode(reqid, bl);
    ::decode(bymds, bl);
    ::decode(mutation, bl);
    ::decode(tid, bl);
    ::decode(version, bl);
  }

  void print(ostream& out) {
    out << "ETableServer " << get_mdstable_name(table) 
	<< " " << get_mdstableserver_opname(op);
    if (reqid) out << " reqid " << reqid;
    if (bymds >= 0) out << " mds" << bymds;
    if (tid) out << " tid " << tid;
    if (version) out << " version " << version;
    if (mutation.length()) out << " mutation=" << mutation.length() << " bytes";
  }  

  void update_segment();
  void replay(MDS *mds);  
};

#endif