]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #ifndef CEPH_LIBRBD_MANAGED_LOCK_BREAK_REQUEST_H | |
5 | #define CEPH_LIBRBD_MANAGED_LOCK_BREAK_REQUEST_H | |
6 | ||
7 | #include "include/int_types.h" | |
8 | #include "include/buffer.h" | |
9 | #include "msg/msg_types.h" | |
10 | #include <list> | |
11 | #include <string> | |
12 | #include <boost/optional.hpp> | |
13 | #include "librbd/managed_lock/Types.h" | |
14 | ||
15 | class Context; | |
16 | class ContextWQ; | |
17 | class obj_watch_t; | |
18 | ||
19 | namespace librados { class IoCtx; } | |
20 | ||
21 | namespace librbd { | |
22 | ||
23 | class ImageCtx; | |
24 | template <typename> class Journal; | |
25 | ||
26 | namespace managed_lock { | |
27 | ||
28 | template <typename ImageCtxT = ImageCtx> | |
29 | class BreakRequest { | |
30 | public: | |
31 | static BreakRequest* create(librados::IoCtx& ioctx, ContextWQ *work_queue, | |
32 | const std::string& oid, const Locker &locker, | |
31f18b77 | 33 | bool exclusive, bool blacklist_locker, |
7c673cae FG |
34 | uint32_t blacklist_expire_seconds, |
35 | bool force_break_lock, Context *on_finish) { | |
31f18b77 FG |
36 | return new BreakRequest(ioctx, work_queue, oid, locker, exclusive, |
37 | blacklist_locker, blacklist_expire_seconds, | |
38 | force_break_lock, on_finish); | |
7c673cae FG |
39 | } |
40 | ||
41 | void send(); | |
42 | ||
43 | private: | |
44 | /** | |
45 | * @verbatim | |
46 | * | |
47 | * <start> | |
48 | * | | |
49 | * v | |
50 | * GET_WATCHERS | |
51 | * | | |
52 | * v | |
31f18b77 FG |
53 | * GET_LOCKER |
54 | * | | |
55 | * v | |
7c673cae FG |
56 | * BLACKLIST (skip if disabled) |
57 | * | | |
58 | * v | |
59 | * BREAK_LOCK | |
60 | * | | |
61 | * v | |
62 | * <finish> | |
63 | * | |
64 | * @endvertbatim | |
65 | */ | |
66 | ||
67 | librados::IoCtx &m_ioctx; | |
68 | CephContext *m_cct; | |
69 | ContextWQ *m_work_queue; | |
70 | std::string m_oid; | |
71 | Locker m_locker; | |
31f18b77 | 72 | bool m_exclusive; |
7c673cae FG |
73 | bool m_blacklist_locker; |
74 | uint32_t m_blacklist_expire_seconds; | |
75 | bool m_force_break_lock; | |
76 | Context *m_on_finish; | |
77 | ||
78 | bufferlist m_out_bl; | |
79 | ||
80 | std::list<obj_watch_t> m_watchers; | |
81 | int m_watchers_ret_val; | |
82 | ||
31f18b77 FG |
83 | Locker m_refreshed_locker; |
84 | ||
7c673cae FG |
85 | BreakRequest(librados::IoCtx& ioctx, ContextWQ *work_queue, |
86 | const std::string& oid, const Locker &locker, | |
31f18b77 FG |
87 | bool exclusive, bool blacklist_locker, |
88 | uint32_t blacklist_expire_seconds, bool force_break_lock, | |
89 | Context *on_finish); | |
7c673cae FG |
90 | |
91 | void send_get_watchers(); | |
92 | void handle_get_watchers(int r); | |
93 | ||
31f18b77 FG |
94 | void send_get_locker(); |
95 | void handle_get_locker(int r); | |
96 | ||
7c673cae FG |
97 | void send_blacklist(); |
98 | void handle_blacklist(int r); | |
99 | ||
100 | void send_break_lock(); | |
101 | void handle_break_lock(int r); | |
102 | ||
103 | void finish(int r); | |
104 | ||
105 | }; | |
106 | ||
107 | } // namespace managed_lock | |
108 | } // namespace librbd | |
109 | ||
110 | extern template class librbd::managed_lock::BreakRequest<librbd::ImageCtx>; | |
111 | ||
112 | #endif // CEPH_LIBRBD_MANAGED_LOCK_BREAK_REQUEST_H |