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_MCLIENTSESSION_H
16 #define CEPH_MCLIENTSESSION_H
17
18 #include "msg/Message.h"
19 #include "mds/mdstypes.h"
20
21 class MClientSession : public Message {
22 private:
23 static constexpr int HEAD_VERSION = 3;
24 static constexpr int COMPAT_VERSION = 1;
25
26 public:
27 ceph_mds_session_head head;
28
29 std::map<std::string, std::string> metadata;
30 feature_bitset_t supported_features;
31
32 int get_op() const { return head.op; }
33 version_t get_seq() const { return head.seq; }
34 utime_t get_stamp() const { return utime_t(head.stamp); }
35 int get_max_caps() const { return head.max_caps; }
36 int get_max_leases() const { return head.max_leases; }
37
38 protected:
|
(2) Event uninit_member: |
Non-static class member field "head.op" is not initialized in this constructor nor in any functions that it calls. |
|
(4) Event uninit_member: |
Non-static class member field "head.seq" is not initialized in this constructor nor in any functions that it calls. |
|
(6) Event uninit_member: |
Non-static class member field "head.stamp" is not initialized in this constructor nor in any functions that it calls. |
|
(8) Event uninit_member: |
Non-static class member field "head.max_caps" is not initialized in this constructor nor in any functions that it calls. |
|
(10) Event uninit_member: |
Non-static class member field "head.max_leases" is not initialized in this constructor nor in any functions that it calls. |
| Also see events: |
[member_decl][member_decl][member_decl][member_decl][member_decl] |
39 MClientSession() : Message{CEPH_MSG_CLIENT_SESSION, HEAD_VERSION, COMPAT_VERSION} { }
40 MClientSession(int o, version_t s=0) :
41 Message{CEPH_MSG_CLIENT_SESSION, HEAD_VERSION, COMPAT_VERSION} {
42 memset(&head, 0, sizeof(head));
43 head.op = o;
44 head.seq = s;
45 }
46 MClientSession(int o, utime_t st) :
47 Message{CEPH_MSG_CLIENT_SESSION, HEAD_VERSION, COMPAT_VERSION} {
48 memset(&head, 0, sizeof(head));
49 head.op = o;
50 head.seq = 0;
51 st.encode_timeval(&head.stamp);
52 }
53 ~MClientSession() override {}
54
55 public:
56 std::string_view get_type_name() const override { return "client_session"; }
57 void print(ostream& out) const override {
58 out << "client_session(" << ceph_session_op_name(get_op());
59 if (get_seq())
60 out << " seq " << get_seq();
61 if (get_op() == CEPH_SESSION_RECALL_STATE)
62 out << " max_caps " << head.max_caps << " max_leases " << head.max_leases;
63 out << ")";
64 }
65
66 void decode_payload() override {
67 auto p = payload.cbegin();
68 decode(head, p);
69 if (header.version >= 2)
70 decode(metadata, p);
71 if (header.version >= 3)
72 decode(supported_features, p);
73 }
74 void encode_payload(uint64_t features) override {
75 using ceph::encode;
76 encode(head, payload);
77 if (metadata.empty() && supported_features.empty()) {
78 // If we're not trying to send any metadata (always the case if
79 // we are a server) then send older-format message to avoid upsetting
80 // old kernel clients.
81 header.version = 1;
82 } else {
83 header.version = HEAD_VERSION;
84 encode(metadata, payload);
85 encode(supported_features, payload);
86 }
87 }
88 private:
89 template<class T, typename... Args>
90 friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
91 };
92
93 #endif
94