initial code repo

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

diff --git a/src/ceph/src/messages/MMonGetVersion.h b/src/ceph/src/messages/MMonGetVersion.h
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+++ b/src/ceph/src/messages/MMonGetVersion.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) 2011 New Dream Network
+ *
+ * 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_MMONGETVERSION_H
+#define CEPH_MMONGETVERSION_H
+
+#include "msg/Message.h"
+
+#include "include/types.h"
+
+/*
+ * This message is sent to the monitors to verify that the client's
+ * version of the map(s) is the latest available. For example, this
+ * can be used to determine whether a pool actually does not exist, or
+ * if it may have been created but the map was not received yet.
+ */
+class MMonGetVersion : public Message {
+public:
+  MMonGetVersion() : Message(CEPH_MSG_MON_GET_VERSION) {}
+
+  const char *get_type_name() const override {
+    return "mon_get_version";
+  }
+
+  void print(ostream& o) const override {
+    o << "mon_get_version(what=" << what << " handle=" << handle << ")";
+  }
+
+  void encode_payload(uint64_t features) override {
+    ::encode(handle, payload);
+    ::encode(what, payload);
+  }
+
+  void decode_payload() override {
+    bufferlist::iterator p = payload.begin();
+    ::decode(handle, p);
+    ::decode(what, p);
+  }
+
+  ceph_tid_t handle = 0;
+  string what;
+
+private:
+  ~MMonGetVersion() override {}
+};
+
+#endif