ceph/src/messages/MInodeFileCaps.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_MINODEFILECAPS_H
  17 #define CEPH_MINODEFILECAPS_H
  18
  19 #include "messages/MMDSOp.h"
  20
  21 class MInodeFileCaps final : public MMDSOp {
  22 private:
  23   static constexpr int HEAD_VERSION = 1;
  24   static constexpr int COMPAT_VERSION = 1;
  25   inodeno_t ino;
  26   __u32     caps = 0;
  27
  28 public:
  29   inodeno_t get_ino() const { return ino; }
  30   int       get_caps() const { return caps; }
  31
  32 protected:
  33   MInodeFileCaps() : MMDSOp(MSG_MDS_INODEFILECAPS, HEAD_VERSION, COMPAT_VERSION) {}
  34   MInodeFileCaps(inodeno_t ino, int caps) :
  35     MMDSOp(MSG_MDS_INODEFILECAPS, HEAD_VERSION, COMPAT_VERSION) {
  36     this->ino = ino;
  37     this->caps = caps;
  38   }
  39   ~MInodeFileCaps() final {}
  40
  41 public:
  42   std::string_view get_type_name() const override { return "inode_file_caps";}
  43   void print(std::ostream& out) const override {
  44     out << "inode_file_caps(" << ino << " " << ccap_string(caps) << ")";
  45   }
  46
  47   void encode_payload(uint64_t features) override {
  48     using ceph::encode;
  49     encode(ino, payload);
  50     encode(caps, payload);
  51   }
  52   void decode_payload() override {
  53     using ceph::decode;
  54     auto p = payload.cbegin();
  55     decode(ino, p);
  56     decode(caps, p);
  57   }
  58 private:
  59   template<class T, typename... Args>
  60   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  61 };
  62
  63 #endif