Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 109 insertions, 0 deletions

diff --git a/src/mds/LogSegment.h b/src/mds/LogSegment.h
new file mode 100644
index 000000000..a7f3f3971
--- /dev/null
+++ b/src/mds/LogSegment.h
@@ -0,0 +1,109 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software 
+ * Foundation.  See file COPYING.
+ * 
+ */
+
+#ifndef CEPH_LOGSEGMENT_H
+#define CEPH_LOGSEGMENT_H
+
+#include "include/elist.h"
+#include "include/interval_set.h"
+#include "include/Context.h"
+#include "MDSContext.h"
+#include "mdstypes.h"
+#include "CInode.h"
+#include "CDentry.h"
+#include "CDir.h"
+
+#include "include/unordered_set.h"
+
+using ceph::unordered_set;
+
+class CDir;
+class CInode;
+class CDentry;
+class MDSRank;
+struct MDPeerUpdate;
+
+class LogSegment {
+ public:
+  using seq_t = uint64_t;
+
+  LogSegment(uint64_t _seq, loff_t off=-1) :
+    seq(_seq), offset(off), end(off),
+    dirty_dirfrags(member_offset(CDir, item_dirty)),
+    new_dirfrags(member_offset(CDir, item_new)),
+    dirty_inodes(member_offset(CInode, item_dirty)),
+    dirty_dentries(member_offset(CDentry, item_dirty)),
+    open_files(member_offset(CInode, item_open_file)),
+    dirty_parent_inodes(member_offset(CInode, item_dirty_parent)),
+    dirty_dirfrag_dir(member_offset(CInode, item_dirty_dirfrag_dir)),
+    dirty_dirfrag_nest(member_offset(CInode, item_dirty_dirfrag_nest)),
+    dirty_dirfrag_dirfragtree(member_offset(CInode, item_dirty_dirfrag_dirfragtree))
+  {}
+
+  void try_to_expire(MDSRank *mds, MDSGatherBuilder &gather_bld, int op_prio);
+  void purge_inodes_finish(interval_set<inodeno_t>& inos){
+    purging_inodes.subtract(inos);
+    if (NULL != purged_cb &&
+	purging_inodes.empty())
+      purged_cb->complete(0);
+  }
+  void set_purged_cb(MDSContext* c){
+    ceph_assert(purged_cb == NULL);
+    purged_cb = c;
+  }
+  void wait_for_expiry(MDSContext *c)
+  {
+    ceph_assert(c != NULL);
+    expiry_waiters.push_back(c);
+  }
+
+  const seq_t seq;
+  uint64_t offset, end;
+  int num_events = 0;
+
+  // dirty items
+  elist<CDir*>    dirty_dirfrags, new_dirfrags;
+  elist<CInode*>  dirty_inodes;
+  elist<CDentry*> dirty_dentries;
+
+  elist<CInode*>  open_files;
+  elist<CInode*>  dirty_parent_inodes;
+  elist<CInode*>  dirty_dirfrag_dir;
+  elist<CInode*>  dirty_dirfrag_nest;
+  elist<CInode*>  dirty_dirfrag_dirfragtree;
+
+  set<CInode*> truncating_inodes;
+  interval_set<inodeno_t> purging_inodes;
+  MDSContext* purged_cb = nullptr;
+
+  map<int, ceph::unordered_set<version_t> > pending_commit_tids;  // mdstable
+  set<metareqid_t> uncommitted_leaders;
+  set<metareqid_t> uncommitted_peers;
+  set<dirfrag_t> uncommitted_fragments;
+
+  // client request ids
+  map<int, ceph_tid_t> last_client_tids;
+
+  // potentially dirty sessions
+  std::set<entity_name_t> touched_sessions;
+
+  // table version
+  version_t inotablev = 0;
+  version_t sessionmapv = 0;
+  map<int,version_t> tablev;
+
+  MDSContext::vec expiry_waiters;
+};
+
+#endif