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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 | #ifndef CEPH_RBD_MIRROR_CLUSTER_WATCHER_H | |
5 | #define CEPH_RBD_MIRROR_CLUSTER_WATCHER_H | |
6 | ||
7 | #include <map> | |
8 | #include <memory> | |
9 | #include <set> | |
10 | ||
11 | #include "common/ceph_context.h" | |
12 | #include "common/Mutex.h" | |
13 | #include "common/Timer.h" | |
14 | #include "include/rados/librados.hpp" | |
15 | #include "types.h" | |
c07f9fc5 FG |
16 | #include "tools/rbd_mirror/service_daemon/Types.h" |
17 | #include <unordered_map> | |
18 | ||
19 | namespace librbd { struct ImageCtx; } | |
7c673cae FG |
20 | |
21 | namespace rbd { | |
22 | namespace mirror { | |
23 | ||
c07f9fc5 FG |
24 | template <typename> class ServiceDaemon; |
25 | ||
7c673cae FG |
26 | /** |
27 | * Tracks mirroring configuration for pools in a single | |
28 | * cluster. | |
29 | */ | |
30 | class ClusterWatcher { | |
31 | public: | |
32 | typedef std::set<peer_t> Peers; | |
33 | typedef std::map<int64_t, Peers> PoolPeers; | |
34 | typedef std::set<std::string> PoolNames; | |
35 | ||
c07f9fc5 FG |
36 | ClusterWatcher(RadosRef cluster, Mutex &lock, |
37 | ServiceDaemon<librbd::ImageCtx>* service_daemon); | |
7c673cae FG |
38 | ~ClusterWatcher() = default; |
39 | ClusterWatcher(const ClusterWatcher&) = delete; | |
40 | ClusterWatcher& operator=(const ClusterWatcher&) = delete; | |
41 | ||
42 | // Caller controls frequency of calls | |
43 | void refresh_pools(); | |
44 | const PoolPeers& get_pool_peers() const; | |
45 | ||
46 | private: | |
c07f9fc5 FG |
47 | typedef std::unordered_map<int64_t, service_daemon::CalloutId> ServicePools; |
48 | ||
7c673cae | 49 | RadosRef m_cluster; |
c07f9fc5 FG |
50 | Mutex &m_lock; |
51 | ServiceDaemon<librbd::ImageCtx>* m_service_daemon; | |
52 | ||
53 | ServicePools m_service_pools; | |
7c673cae FG |
54 | PoolPeers m_pool_peers; |
55 | ||
56 | void read_pool_peers(PoolPeers *pool_peers, PoolNames *pool_names); | |
57 | }; | |
58 | ||
59 | } // namespace mirror | |
60 | } // namespace rbd | |
61 | ||
62 | #endif // CEPH_RBD_MIRROR_CLUSTER_WATCHER_H |