projects / ceph.git / blame
| 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 LIBRBD_TYPES_H | |
| 5 | #define LIBRBD_TYPES_H | |
| 6 | ||
| 7 | #include "include/types.h" | |
| 8 | #include "cls/rbd/cls_rbd_types.h" | |
| 9 | #include <string> | |
| 10 | ||
| 11 | namespace librbd { | |
| 12 | ||
| b32b8144 FG |
13 | // Performance counters |
| 14 | enum { | |
| 15 | l_librbd_first = 26000, | |
| 16 | ||
| 17 | l_librbd_rd, // read ops | |
| 18 | l_librbd_rd_bytes, // bytes read | |
| 19 | l_librbd_rd_latency, // average latency | |
| 20 | l_librbd_wr, | |
| 21 | l_librbd_wr_bytes, | |
| 22 | l_librbd_wr_latency, | |
| 23 | l_librbd_discard, | |
| 24 | l_librbd_discard_bytes, | |
| 25 | l_librbd_discard_latency, | |
| 26 | l_librbd_flush, | |
| 27 | ||
| 28 | l_librbd_aio_flush, | |
| 29 | l_librbd_aio_flush_latency, | |
| 30 | l_librbd_ws, | |
| 31 | l_librbd_ws_bytes, | |
| 32 | l_librbd_ws_latency, | |
| 33 | ||
| 34 | l_librbd_cmp, | |
| 35 | l_librbd_cmp_bytes, | |
| 36 | l_librbd_cmp_latency, | |
| 37 | ||
| 38 | l_librbd_snap_create, | |
| 39 | l_librbd_snap_remove, | |
| 40 | l_librbd_snap_rollback, | |
| 41 | l_librbd_snap_rename, | |
| 42 | ||
| 43 | l_librbd_notify, | |
| 44 | l_librbd_resize, | |
| 45 | ||
| 46 | l_librbd_readahead, | |
| 47 | l_librbd_readahead_bytes, | |
| 48 | ||
| 49 | l_librbd_invalidate_cache, | |
| 50 | ||
| 51 | l_librbd_opened_time, | |
| 52 | l_librbd_lock_acquired_time, | |
| 53 | ||
| 54 | l_librbd_last, | |
| 55 | }; | |
| 56 | ||
| 7c673cae FG |
57 | /** @brief Unique identification of a parent in clone relationship. |
| 58 | * Cloning an image creates a child image that keeps a reference | |
| 59 | * to its parent. This allows copy-on-write images. */ | |
| 60 | struct ParentSpec { | |
| 61 | int64_t pool_id; | |
| 62 | std::string image_id; | |
| 63 | snapid_t snap_id; | |
| 64 | ||
| 65 | ParentSpec() : pool_id(-1), snap_id(CEPH_NOSNAP) { | |
| 66 | } | |
| 67 | ParentSpec(int64_t pool_id, std::string image_id, snapid_t snap_id) | |
| 68 | : pool_id(pool_id), image_id(image_id), snap_id(snap_id) { | |
| 69 | } | |
| 70 | ||
| 71 | bool operator==(const ParentSpec &other) { | |
| 72 | return ((this->pool_id == other.pool_id) && | |
| 73 | (this->image_id == other.image_id) && | |
| 74 | (this->snap_id == other.snap_id)); | |
| 75 | } | |
| 76 | bool operator!=(const ParentSpec &other) { | |
| 77 | return !(*this == other); | |
| 78 | } | |
| 79 | }; | |
| 80 | ||
| 81 | /// Full information about an image's parent. | |
| 82 | struct ParentInfo { | |
| 83 | /// Identification of the parent. | |
| 84 | ParentSpec spec; | |
| 85 | ||
| 86 | /** @brief Where the portion of data shared with the child image ends. | |
| 87 | * Since images can be resized multiple times, the portion of data shared | |
| 88 | * with the child image is not necessarily min(parent size, child size). | |
| 89 | * If the child image is first shrunk and then enlarged, the common portion | |
| 90 | * will be shorter. */ | |
| 91 | uint64_t overlap; | |
| 92 | ||
| 93 | ParentInfo() : overlap(0) { | |
| 94 | } | |
| 95 | }; | |
| 96 | ||
| 97 | struct SnapInfo { | |
| 98 | std::string name; | |
| 99 | cls::rbd::SnapshotNamespace snap_namespace; | |
| 100 | uint64_t size; | |
| 101 | ParentInfo parent; | |
| 102 | uint8_t protection_status; | |
| 103 | uint64_t flags; | |
| 104 | utime_t timestamp; | |
| 105 | SnapInfo(std::string _name, | |
| 106 | const cls::rbd::SnapshotNamespace &_snap_namespace, | |
| 107 | uint64_t _size, const ParentInfo &_parent, | |
| 108 | uint8_t _protection_status, uint64_t _flags, utime_t _timestamp) | |
| 109 | : name(_name), snap_namespace(_snap_namespace), size(_size), | |
| 110 | parent(_parent), protection_status(_protection_status), flags(_flags), | |
| 111 | timestamp(_timestamp) { | |
| 112 | } | |
| 113 | }; | |
| 114 | ||
| 115 | } // namespace librbd | |
| 116 | ||
| 117 | #endif // LIBRBD_TYPES_H |