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 Message {
  23  public:
  24   __u16 table;
  25   __s16 op;
  26   uint64_t reqid;
  27   bufferlist bl;
  28
  29   MMDSTableRequest() : Message(MSG_MDS_TABLE_REQUEST) {}
  30   MMDSTableRequest(int tab, int o, uint64_t r, version_t v=0) :
  31     Message(MSG_MDS_TABLE_REQUEST),
  32     table(tab), op(o), reqid(r) {
  33     set_tid(v);
  34   }
  35 private:
  36   ~MMDSTableRequest() override {}
  37
  38 public:
  39   const char *get_type_name() const override { return "mds_table_request"; }
  40   void print(ostream& o) const override {
  41     o << "mds_table_request(" << get_mdstable_name(table)
  42       << " " << get_mdstableserver_opname(op);
  43     if (reqid) o << " " << reqid;
  44     if (get_tid()) o << " tid " << get_tid();
  45     if (bl.length()) o << " " << bl.length() << " bytes";
  46     o << ")";
  47   }
  48
  49   void decode_payload() override {
  50     bufferlist::iterator p = payload.begin();
  51     ::decode(table, p);
  52     ::decode(op, p);
  53     ::decode(reqid, p);
  54     ::decode(bl, p);
  55   }
  56
  57   void encode_payload(uint64_t features) override {
  58     ::encode(table, payload);
  59     ::encode(op, payload);
  60     ::encode(reqid, payload);
  61     ::encode(bl, payload);
  62   }
  63 };
  64
  65 #endif