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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 | ||
16 | #ifndef CEPH_MSTATFS_H | |
17 | #define CEPH_MSTATFS_H | |
18 | ||
19 | #include <sys/statvfs.h> /* or <sys/statfs.h> */ | |
20 | #include "messages/PaxosServiceMessage.h" | |
21 | ||
22 | class MStatfs : public PaxosServiceMessage { | |
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23 | |
24 | static const int HEAD_VERSION = 2; | |
25 | static const int COMPAT_VERSION = 0; | |
26 | ||
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27 | public: |
28 | uuid_d fsid; | |
d2e6a577 | 29 | boost::optional<int64_t> data_pool; |
7c673cae | 30 | |
d2e6a577 FG |
31 | MStatfs() : PaxosServiceMessage(CEPH_MSG_STATFS, 0, HEAD_VERSION) {} |
32 | MStatfs(const uuid_d& f, ceph_tid_t t, boost::optional<int64_t> _data_pool, | |
33 | version_t v) : PaxosServiceMessage(CEPH_MSG_STATFS, v, | |
34 | HEAD_VERSION, COMPAT_VERSION), | |
35 | fsid(f), data_pool(_data_pool) { | |
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36 | set_tid(t); |
37 | } | |
38 | ||
39 | private: | |
40 | ~MStatfs() override {} | |
41 | ||
42 | public: | |
43 | const char *get_type_name() const override { return "statfs"; } | |
44 | void print(ostream& out) const override { | |
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45 | out << "statfs(" << get_tid() << " pool " |
46 | << (data_pool ? *data_pool : -1) << " v" << version << ")"; | |
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47 | } |
48 | ||
49 | void encode_payload(uint64_t features) override { | |
50 | paxos_encode(); | |
51 | ::encode(fsid, payload); | |
d2e6a577 | 52 | ::encode(data_pool, payload); |
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53 | } |
54 | void decode_payload() override { | |
55 | bufferlist::iterator p = payload.begin(); | |
56 | paxos_decode(p); | |
57 | ::decode(fsid, p); | |
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58 | if (header.version >= 2) { |
59 | ::decode(data_pool, p); | |
60 | } else { | |
61 | data_pool = boost::optional<int64_t> (); | |
62 | } | |
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63 | } |
64 | }; | |
65 | ||
66 | #endif |