initial code repo

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

diff --git a/src/ceph/src/messages/MStatfs.h b/src/ceph/src/messages/MStatfs.h
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+++ b/src/ceph/src/messages/MStatfs.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_MSTATFS_H
+#define CEPH_MSTATFS_H
+
+#include <sys/statvfs.h>    /* or <sys/statfs.h> */
+#include "messages/PaxosServiceMessage.h"
+
+class MStatfs : public PaxosServiceMessage {
+
+  static const int HEAD_VERSION = 2;
+  static const int COMPAT_VERSION = 1;
+
+public:
+  uuid_d fsid;
+  boost::optional<int64_t> data_pool;
+
+  MStatfs() : PaxosServiceMessage(CEPH_MSG_STATFS, 0, HEAD_VERSION, COMPAT_VERSION) {}
+  MStatfs(const uuid_d& f, ceph_tid_t t, boost::optional<int64_t> _data_pool,
+             version_t v) : PaxosServiceMessage(CEPH_MSG_STATFS, v,
+                                            HEAD_VERSION, COMPAT_VERSION),
+                                                fsid(f), data_pool(_data_pool) {
+    set_tid(t);
+  }
+
+private:
+  ~MStatfs() override {}
+
+public:
+  const char *get_type_name() const override { return "statfs"; }
+  void print(ostream& out) const override {
+    out << "statfs(" << get_tid() << " pool "
+        << (data_pool ? *data_pool : -1) << " v" << version << ")";
+  }
+
+  void encode_payload(uint64_t features) override {
+    paxos_encode();
+    ::encode(fsid, payload);
+    ::encode(data_pool, payload);
+  }
+  void decode_payload() override {
+    bufferlist::iterator p = payload.begin();
+    paxos_decode(p);
+    ::decode(fsid, p);
+    if (header.version >= 2) {
+      ::decode(data_pool, p);
+    } else {
+      data_pool = boost::optional<int64_t> ();
+    }
+  }
+};
+
+#endif