ceph/src/messages/MExportDirNotifyAck.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 #ifndef CEPH_MEXPORTDIRNOTIFYACK_H
  16 #define CEPH_MEXPORTDIRNOTIFYACK_H
  17
  18 #include "messages/MMDSOp.h"
  19
  20 class MExportDirNotifyAck final : public MMDSOp {
  21 private:
  22   static constexpr int HEAD_VERSION = 1;
  23   static constexpr int COMPAT_VERSION = 1;
  24
  25   dirfrag_t dirfrag;
  26   std::pair<__s32,__s32> new_auth;
  27
  28  public:
  29   dirfrag_t get_dirfrag() const { return dirfrag; }
  30   std::pair<__s32,__s32> get_new_auth() const { return new_auth; }
  31
  32 protected:
  33   MExportDirNotifyAck() :
  34     MMDSOp{MSG_MDS_EXPORTDIRNOTIFYACK, HEAD_VERSION, COMPAT_VERSION} {}
  35   MExportDirNotifyAck(dirfrag_t df, uint64_t tid, std::pair<__s32,__s32> na) :
  36     MMDSOp{MSG_MDS_EXPORTDIRNOTIFYACK, HEAD_VERSION, COMPAT_VERSION}, dirfrag(df), new_auth(na) {
  37     set_tid(tid);
  38   }
  39   ~MExportDirNotifyAck() final {}
  40
  41 public:
  42   std::string_view get_type_name() const override { return "ExNotA"; }
  43   void print(std::ostream& o) const override {
  44     o << "export_notify_ack(" << dirfrag << ")";
  45   }
  46
  47   void encode_payload(uint64_t features) override {
  48     using ceph::encode;
  49     encode(dirfrag, payload);
  50     encode(new_auth, payload);
  51   }
  52   void decode_payload() override {
  53     using ceph::decode;
  54     auto p = payload.cbegin();
  55     decode(dirfrag, p);
  56     decode(new_auth, p);
  57   }
  58 private:
  59   template<class T, typename... Args>
  60   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  61   template<class T, typename... Args>
  62   friend MURef<T> crimson::make_message(Args&&... args);
  63 };
  64
  65 #endif