projects / ceph.git / blame
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|---|---|---|
| 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 | * 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_LOGSEGMENT_H | |
| 16 | #define CEPH_LOGSEGMENT_H | |
| 17 | ||
| 18 | #include "include/elist.h" | |
| 19 | #include "include/interval_set.h" | |
| 20 | #include "include/Context.h" | |
| 11fdf7f2 | 21 | #include "MDSContext.h" |
| 7c673cae FG |
22 | #include "mdstypes.h" |
| 23 | #include "CInode.h" | |
| 24 | #include "CDentry.h" | |
| 25 | #include "CDir.h" | |
| 7c673cae FG |
26 | |
| 27 | #include "include/unordered_set.h" | |
| 28 | using ceph::unordered_set; | |
| 29 | ||
| 30 | class CDir; | |
| 31 | class CInode; | |
| 32 | class CDentry; | |
| 33 | class MDSRank; | |
| 34 | struct MDSlaveUpdate; | |
| 35 | ||
| 36 | typedef uint64_t log_segment_seq_t; | |
| 37 | ||
| 38 | class LogSegment { | |
| 39 | public: | |
| 40 | const log_segment_seq_t seq; | |
| 41 | uint64_t offset, end; | |
| 42 | int num_events; | |
| 43 | ||
| 44 | // dirty items | |
| 45 | elist<CDir*> dirty_dirfrags, new_dirfrags; | |
| 46 | elist<CInode*> dirty_inodes; | |
| 47 | elist<CDentry*> dirty_dentries; | |
| 48 | ||
| 49 | elist<CInode*> open_files; | |
| 50 | elist<CInode*> dirty_parent_inodes; | |
| 51 | elist<CInode*> dirty_dirfrag_dir; | |
| 52 | elist<CInode*> dirty_dirfrag_nest; | |
| 53 | elist<CInode*> dirty_dirfrag_dirfragtree; | |
| 54 | ||
| 55 | elist<MDSlaveUpdate*> slave_updates; | |
| 56 | ||
| 57 | set<CInode*> truncating_inodes; | |
| 58 | ||
| 59 | map<int, ceph::unordered_set<version_t> > pending_commit_tids; // mdstable | |
| 60 | set<metareqid_t> uncommitted_masters; | |
| 61 | set<dirfrag_t> uncommitted_fragments; | |
| 62 | ||
| 63 | // client request ids | |
| 64 | map<int, ceph_tid_t> last_client_tids; | |
| 65 | ||
| 66 | // potentially dirty sessions | |
| 67 | std::set<entity_name_t> touched_sessions; | |
| 68 | ||
| 69 | // table version | |
| 70 | version_t inotablev; | |
| 71 | version_t sessionmapv; | |
| 72 | map<int,version_t> tablev; | |
| 73 | ||
| 74 | // try to expire | |
| 75 | void try_to_expire(MDSRank *mds, MDSGatherBuilder &gather_bld, int op_prio); | |
| 76 | ||
| 11fdf7f2 | 77 | MDSContext::vec expiry_waiters; |
| 7c673cae | 78 | |
| 11fdf7f2 | 79 | void wait_for_expiry(MDSContext *c) |
| 7c673cae | 80 | { |
| 11fdf7f2 | 81 | ceph_assert(c != NULL); |
| 7c673cae FG |
82 | expiry_waiters.push_back(c); |
| 83 | } | |
| 84 | ||
| 85 | // cons | |
| 86 | LogSegment(uint64_t _seq, loff_t off=-1) : | |
| 87 | seq(_seq), offset(off), end(off), num_events(0), | |
| 88 | dirty_dirfrags(member_offset(CDir, item_dirty)), | |
| 89 | new_dirfrags(member_offset(CDir, item_new)), | |
| 90 | dirty_inodes(member_offset(CInode, item_dirty)), | |
| 91 | dirty_dentries(member_offset(CDentry, item_dirty)), | |
| 92 | open_files(member_offset(CInode, item_open_file)), | |
| 93 | dirty_parent_inodes(member_offset(CInode, item_dirty_parent)), | |
| 94 | dirty_dirfrag_dir(member_offset(CInode, item_dirty_dirfrag_dir)), | |
| 95 | dirty_dirfrag_nest(member_offset(CInode, item_dirty_dirfrag_nest)), | |
| 96 | dirty_dirfrag_dirfragtree(member_offset(CInode, item_dirty_dirfrag_dirfragtree)), | |
| 97 | slave_updates(0), // passed to begin() manually | |
| 98 | inotablev(0), sessionmapv(0) | |
| 99 | { } | |
| 100 | }; | |
| 101 | ||
| 102 | #endif |