ceph/src/messages/MExportDir.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_MEXPORTDIR_H
  17 #define CEPH_MEXPORTDIR_H
  18
  19 #include "msg/Message.h"
  20
  21
  22 class MExportDir : public MessageInstance<MExportDir> {
  23 public:
  24   friend factory;
  25   dirfrag_t dirfrag;
  26   bufferlist export_data;
  27   vector<dirfrag_t> bounds;
  28   bufferlist client_map;
  29
  30 protected:
  31   MExportDir() : MessageInstance(MSG_MDS_EXPORTDIR) {}
  32   MExportDir(dirfrag_t df, uint64_t tid) :
  33     MessageInstance(MSG_MDS_EXPORTDIR), dirfrag(df) {
  34     set_tid(tid);
  35   }
  36   ~MExportDir() override {}
  37
  38 public:
  39   std::string_view get_type_name() const override { return "Ex"; }
  40   void print(ostream& o) const override {
  41     o << "export(" << dirfrag << ")";
  42   }
  43
  44   void add_export(dirfrag_t df) {
  45     bounds.push_back(df);
  46   }
  47
  48   void encode_payload(uint64_t features) override {
  49     using ceph::encode;
  50     encode(dirfrag, payload);
  51     encode(bounds, payload);
  52     encode(export_data, payload);
  53     encode(client_map, payload);
  54   }
  55   void decode_payload() override {
  56     auto p = payload.cbegin();
  57     decode(dirfrag, p);
  58     decode(bounds, p);
  59     decode(export_data, p);
  60     decode(client_map, p);
  61   }
  62
  63 };
  64
  65 #endif