initial code repo

[stor4nfv.git] / src / ceph / src / messages / MDirUpdate.h

diff --git a/src/ceph/src/messages/MDirUpdate.h b/src/ceph/src/messages/MDirUpdate.h
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+++ b/src/ceph/src/messages/MDirUpdate.h
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+// -*- 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_MDIRUPDATE_H
+#define CEPH_MDIRUPDATE_H
+
+#include "msg/Message.h"
+
+class MDirUpdate : public Message {
+  mds_rank_t from_mds;
+  dirfrag_t dirfrag;
+  int32_t dir_rep;
+  int32_t discover;
+  compact_set<int32_t> dir_rep_by;
+  filepath path;
+  int tried_discover;
+
+ public:
+  mds_rank_t get_source_mds() const { return from_mds; }
+  dirfrag_t get_dirfrag() const { return dirfrag; }
+  int get_dir_rep() const { return dir_rep; }
+  const compact_set<int>& get_dir_rep_by() const { return dir_rep_by; }
+  bool should_discover() const { return discover > tried_discover; }
+  const filepath& get_path() const { return path; }
+
+  bool has_tried_discover() const { return tried_discover > 0; }
+  void inc_tried_discover() { ++tried_discover; }
+
+  MDirUpdate() : Message(MSG_MDS_DIRUPDATE), tried_discover(0) {}
+  MDirUpdate(mds_rank_t f, 
+            dirfrag_t dirfrag,
+             int dir_rep,
+             compact_set<int>& dir_rep_by,
+             filepath& path,
+             bool discover = false) :
+    Message(MSG_MDS_DIRUPDATE), tried_discover(0) {
+    this->from_mds = f;
+    this->dirfrag = dirfrag;
+    this->dir_rep = dir_rep;
+    this->dir_rep_by = dir_rep_by;
+    this->discover = discover ? 5 : 0;
+    this->path = path;
+  }
+private:
+  ~MDirUpdate() override {}
+
+public:
+  const char *get_type_name() const override { return "dir_update"; }
+  void print(ostream& out) const override {
+    out << "dir_update(" << get_dirfrag() << ")";
+  }
+
+  void decode_payload() override {
+    bufferlist::iterator p = payload.begin();
+    ::decode(from_mds, p);
+    ::decode(dirfrag, p);
+    ::decode(dir_rep, p);
+    ::decode(discover, p);
+    ::decode(dir_rep_by, p);
+    ::decode(path, p);
+  }
+
+  void encode_payload(uint64_t features) override {
+    ::encode(from_mds, payload);
+    ::encode(dirfrag, payload);
+    ::encode(dir_rep, payload);
+    ::encode(discover, payload);
+    ::encode(dir_rep_by, payload);
+    ::encode(path, payload);
+  }
+};
+
+#endif