ceph/src/messages/MMDSTableRequest.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_MMDSTABLEREQUEST_H
  17 #define CEPH_MMDSTABLEREQUEST_H
  18
  19 #include "msg/Message.h"
  20 #include "mds/mds_table_types.h"
  21
  22 class MMDSTableRequest : public MessageInstance<MMDSTableRequest> {
  23 public:
  24   friend factory;
  25
  26   __u16 table = 0;
  27   __s16 op = 0;
  28   uint64_t reqid = 0;
  29   bufferlist bl;
  30
  31 protected:
  32   MMDSTableRequest() : MessageInstance(MSG_MDS_TABLE_REQUEST) {}
  33   MMDSTableRequest(int tab, int o, uint64_t r, version_t v=0) :
  34     MessageInstance(MSG_MDS_TABLE_REQUEST),
  35     table(tab), op(o), reqid(r) {
  36     set_tid(v);
  37   }
  38   ~MMDSTableRequest() override {}
  39
  40 public:
  41   std::string_view get_type_name() const override { return "mds_table_request"; }
  42   void print(ostream& o) const override {
  43     o << "mds_table_request(" << get_mdstable_name(table)
  44       << " " << get_mdstableserver_opname(op);
  45     if (reqid) o << " " << reqid;
  46     if (get_tid()) o << " tid " << get_tid();
  47     if (bl.length()) o << " " << bl.length() << " bytes";
  48     o << ")";
  49   }
  50
  51   void decode_payload() override {
  52     auto p = payload.cbegin();
  53     decode(table, p);
  54     decode(op, p);
  55     decode(reqid, p);
  56     decode(bl, p);
  57   }
  58
  59   void encode_payload(uint64_t features) override {
  60     using ceph::encode;
  61     encode(table, payload);
  62     encode(op, payload);
  63     encode(reqid, payload);
  64     encode(bl, payload);
  65   }
  66 };
  67
  68 #endif