1 files changed, 65 insertions, 0 deletions
diff --git a/src/mds/FSMapUser.h b/src/mds/FSMapUser.h
new file mode 100644
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--- /dev/null
+++ b/src/mds/FSMapUser.h
@@ -0,0 +1,65 @@
+// -*- 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_FSMAPCOMPACT_H
+#define CEPH_FSMAPCOMPACT_H
+
+#include <map>
+#include <string>
+#include <string_view>
+
+#include "mds/mdstypes.h"
+
+class FSMapUser {
+public:
+  struct fs_info_t {
+    fs_cluster_id_t cid;
+    std::string name;
+    fs_info_t() : cid(FS_CLUSTER_ID_NONE) {}
+    void encode(bufferlist& bl, uint64_t features) const;
+    void decode(bufferlist::const_iterator &bl);
+  };
+
+  epoch_t epoch;
+  fs_cluster_id_t legacy_client_fscid;
+  std::map<fs_cluster_id_t, fs_info_t> filesystems;
+
+  FSMapUser()
+    : epoch(0), legacy_client_fscid(FS_CLUSTER_ID_NONE) { }
+
+  epoch_t get_epoch() const { return epoch; }
+
+  fs_cluster_id_t get_fs_cid(std::string_view name) const {
+    for (auto &p : filesystems) {
+      if (p.second.name == name)
+	return p.first;
+    }
+    return FS_CLUSTER_ID_NONE;
+  }
+
+  void encode(bufferlist& bl, uint64_t features) const;
+  void decode(bufferlist::const_iterator& bl);
+
+  void print(ostream& out) const;
+  void print_summary(Formatter *f, ostream *out);
+
+  static void generate_test_instances(list<FSMapUser*>& ls);
+};
+WRITE_CLASS_ENCODER_FEATURES(FSMapUser::fs_info_t)
+WRITE_CLASS_ENCODER_FEATURES(FSMapUser)
+
+inline ostream& operator<<(ostream& out, FSMapUser& m) {
+  m.print_summary(NULL, &out);
+  return out;
+}
+#endif