ceph/src/messages/MStatfs.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15
  16 #ifndef CEPH_MSTATFS_H
  17 #define CEPH_MSTATFS_H
  18
  19 #include <sys/statvfs.h>    /* or <sys/statfs.h> */
  20 #include "messages/PaxosServiceMessage.h"
  21
  22 class MStatfs : public PaxosServiceMessage {
  23 public:
  24   uuid_d fsid;
  25
  26   MStatfs() : PaxosServiceMessage(CEPH_MSG_STATFS, 0) {}
  27   MStatfs(const uuid_d& f, ceph_tid_t t, version_t v) :
  28     PaxosServiceMessage(CEPH_MSG_STATFS, v), fsid(f) {
  29     set_tid(t);
  30   }
  31
  32 private:
  33   ~MStatfs() override {}
  34
  35 public:
  36   const char *get_type_name() const override { return "statfs"; }
  37   void print(ostream& out) const override {
  38     out << "statfs(" << get_tid() << " v" << version << ")";
  39   }
  40
  41   void encode_payload(uint64_t features) override {
  42     paxos_encode();
  43     ::encode(fsid, payload);
  44   }
  45   void decode_payload() override {
  46     bufferlist::iterator p = payload.begin();
  47     paxos_decode(p);
  48     ::decode(fsid, p);
  49   }
  50 };
  51
  52 #endif