X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fmds%2FSnapRealm.h;fp=src%2Fceph%2Fsrc%2Fmds%2FSnapRealm.h;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=4a99d639140a16d57e66e7d45ba94b5ebac958bf;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git

diff --git a/src/ceph/src/mds/SnapRealm.h b/src/ceph/src/mds/SnapRealm.h
deleted file mode 100644
index 4a99d63..0000000
--- a/src/ceph/src/mds/SnapRealm.h
+++ /dev/null
@@ -1,165 +0,0 @@
-// -*- 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_MDS_SNAPREALM_H
-#define CEPH_MDS_SNAPREALM_H
-
-#include "mdstypes.h"
-#include "snap.h"
-#include "include/xlist.h"
-#include "include/elist.h"
-#include "common/snap_types.h"
-
-class MDSInternalContextBase;
-
-struct SnapRealm {
-protected:
-  // cache
-  mutable snapid_t cached_seq;           // max seq over self and all past+present parents.
-  mutable snapid_t cached_last_created;  // max last_created over all past+present parents
-  mutable snapid_t cached_last_destroyed;
-  mutable set<snapid_t> cached_snaps;
-  mutable SnapContext cached_snap_context;
-  mutable bufferlist cached_snap_trace;
-
-  void check_cache() const;
-
-public:
-  // realm state
-  sr_t srnode;
-
-  // in-memory state
-  MDCache *mdcache;
-  CInode *inode;
-
-  bool open;                        // set to true once all past_parents are opened
-  SnapRealm *parent;
-  set<SnapRealm*> open_children;    // active children that are currently open
-  set<SnapRealm*> open_past_children;  // past children who has pinned me
-  map<inodeno_t, pair<SnapRealm*, set<snapid_t> > > open_past_parents;  // these are explicitly pinned.
-  unsigned num_open_past_parents;
-
-
-
-  elist<CInode*> inodes_with_caps;             // for efficient realm splits
-  map<client_t, xlist<Capability*>* > client_caps;   // to identify clients who need snap notifications
-
-  SnapRealm(MDCache *c, CInode *in) : 
-    srnode(),
-    mdcache(c), inode(in),
-    open(false), parent(0),
-    num_open_past_parents(0),
-    inodes_with_caps(0) 
-  { }
-
-  bool exists(const string &name) const {
-    for (map<snapid_t,SnapInfo>::const_iterator p = srnode.snaps.begin();
-	 p != srnode.snaps.end();
-	 ++p) {
-      if (p->second.name == name)
-	return true;
-    }
-    return false;
-  }
-
-  bool is_open() const { return open; }
-  void _close_parents() { open = false; }
-  bool _open_parents(MDSInternalContextBase *retryorfinish, snapid_t first=1, snapid_t last=CEPH_NOSNAP);
-  bool open_parents(MDSInternalContextBase *retryorfinish);
-  void _remove_missing_parent(snapid_t snapid, inodeno_t parent, int err);
-  bool have_past_parents_open(snapid_t first=1, snapid_t last=CEPH_NOSNAP);
-  void add_open_past_parent(SnapRealm *parent, snapid_t last);
-  void remove_open_past_parent(inodeno_t ino, snapid_t last);
-  void close_parents();
-
-  void prune_past_parents();
-  bool has_past_parents() const { return !srnode.past_parents.empty(); }
-
-  void build_snap_set(set<snapid_t>& s, 
-		      snapid_t& max_seq, snapid_t& max_last_created, snapid_t& max_last_destroyed,
-		      snapid_t first, snapid_t last) const;
-  void get_snap_info(map<snapid_t,SnapInfo*>& infomap, snapid_t first=0, snapid_t last=CEPH_NOSNAP);
-
-  const bufferlist& get_snap_trace();
-  void build_snap_trace(bufferlist& snapbl) const;
-
-  const string& get_snapname(snapid_t snapid, inodeno_t atino);
-  snapid_t resolve_snapname(const string &name, inodeno_t atino, snapid_t first=0, snapid_t last=CEPH_NOSNAP);
-
-  const set<snapid_t>& get_snaps() const;
-  const SnapContext& get_snap_context() const;
-  void invalidate_cached_snaps() {
-    cached_seq = 0;
-  }
-  snapid_t get_last_created() {
-    check_cache();
-    return cached_last_created;
-  }
-  snapid_t get_last_destroyed() {
-    check_cache();
-    return cached_last_destroyed;
-  }
-  snapid_t get_newest_snap() {
-    check_cache();
-    if (cached_snaps.empty())
-      return 0;
-    else
-      return *cached_snaps.rbegin();
-  }
-  snapid_t get_newest_seq() {
-    check_cache();
-    return cached_seq;
-  }
-
-  snapid_t get_snap_following(snapid_t follows) {
-    check_cache();
-    const set<snapid_t>& s = get_snaps();
-    set<snapid_t>::const_iterator p = s.upper_bound(follows);
-    if (p != s.end())
-      return *p;
-    return CEPH_NOSNAP;
-  }
-
-  bool has_snaps_in_range(snapid_t first, snapid_t last) {
-    check_cache();
-    const set<snapid_t>& s = get_snaps();
-    set<snapid_t>::const_iterator p = s.lower_bound(first);
-    return (p != s.end() && *p <= last);
-  }
-
-  void adjust_parent();
-
-  void split_at(SnapRealm *child);
-  void join(SnapRealm *child);
-
-  void add_cap(client_t client, Capability *cap) {
-    auto client_caps_entry = client_caps.find(client);
-    if (client_caps_entry == client_caps.end())
-      client_caps_entry = client_caps.emplace(client,
-					      new xlist<Capability*>).first;
-    client_caps_entry->second->push_back(&cap->item_snaprealm_caps);
-  }
-  void remove_cap(client_t client, Capability *cap) {
-    cap->item_snaprealm_caps.remove_myself();
-    if (client_caps[client]->empty()) {
-      delete client_caps[client];
-      client_caps.erase(client);
-    }
-  }
-
-};
-
-ostream& operator<<(ostream& out, const SnapRealm &realm);
-
-#endif