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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 | #ifndef CEPH_MCLIENTCAPRELEASE_H | |
16 | #define CEPH_MCLIENTCAPRELEASE_H | |
17 | ||
18 | #include "msg/Message.h" | |
19 | ||
20 | ||
9f95a23c | 21 | class MClientCapRelease : public SafeMessage { |
7c673cae | 22 | public: |
11fdf7f2 | 23 | std::string_view get_type_name() const override { return "client_cap_release";} |
7c673cae FG |
24 | void print(ostream& out) const override { |
25 | out << "client_cap_release(" << caps.size() << ")"; | |
26 | } | |
27 | ||
28 | void decode_payload() override { | |
11fdf7f2 TL |
29 | auto p = payload.cbegin(); |
30 | decode(head, p); | |
31 | decode_nohead(head.num, caps, p); | |
7c673cae | 32 | if (header.version >= 2) { |
11fdf7f2 | 33 | decode(osd_epoch_barrier, p); |
7c673cae FG |
34 | } |
35 | } | |
36 | void encode_payload(uint64_t features) override { | |
11fdf7f2 | 37 | using ceph::encode; |
7c673cae | 38 | head.num = caps.size(); |
11fdf7f2 TL |
39 | encode(head, payload); |
40 | encode_nohead(caps, payload); | |
41 | encode(osd_epoch_barrier, payload); | |
7c673cae | 42 | } |
9f95a23c TL |
43 | |
44 | struct ceph_mds_cap_release head; | |
45 | vector<ceph_mds_cap_item> caps; | |
46 | ||
47 | // The message receiver must wait for this OSD epoch | |
48 | // before actioning this cap release. | |
49 | epoch_t osd_epoch_barrier = 0; | |
50 | ||
51 | private: | |
52 | template<class T, typename... Args> | |
53 | friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args); | |
54 | ||
55 | static constexpr int HEAD_VERSION = 2; | |
56 | static constexpr int COMPAT_VERSION = 1; | |
57 | ||
58 | MClientCapRelease() : | |
59 | SafeMessage{CEPH_MSG_CLIENT_CAPRELEASE, HEAD_VERSION, COMPAT_VERSION} | |
60 | { | |
61 | memset(&head, 0, sizeof(head)); | |
62 | } | |
63 | ~MClientCapRelease() override {} | |
7c673cae FG |
64 | }; |
65 | ||
66 | #endif |