ceph/src/messages/MClientReclaim.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_MCLIENTRECLAIM_H
  17 #define CEPH_MCLIENTRECLAIM_H
  18
  19 #include "msg/Message.h"
  20
  21 class MClientReclaim final : public SafeMessage {
  22 public:
  23   static constexpr int HEAD_VERSION = 1;
  24   static constexpr int COMPAT_VERSION = 1;
  25   static constexpr uint32_t FLAG_FINISH = 1U << 31;
  26
  27   uint32_t get_flags() const { return flags; }
  28   std::string_view get_uuid() const { return uuid; }
  29
  30   std::string_view get_type_name() const override { return "client_reclaim"; }
  31   void print(std::ostream& o) const override {
  32     std::ios_base::fmtflags f(o.flags());
  33     o << "client_reclaim(" << get_uuid() << " flags 0x" << std::hex << get_flags() << ")";
  34     o.flags(f);
  35   }
  36
  37   void encode_payload(uint64_t features) override {
  38     using ceph::encode;
  39     encode(uuid, payload);
  40     encode(flags, payload);
  41   }
  42
  43   void decode_payload() override {
  44     using ceph::decode;
  45     auto p = payload.cbegin();
  46     decode(uuid, p);
  47     decode(flags, p);
  48   }
  49
  50 protected:
  51   MClientReclaim() :
  52     SafeMessage{CEPH_MSG_CLIENT_RECLAIM, HEAD_VERSION, COMPAT_VERSION} {}
  53   MClientReclaim(std::string_view _uuid, uint32_t _flags) :
  54     SafeMessage{CEPH_MSG_CLIENT_RECLAIM, HEAD_VERSION, COMPAT_VERSION},
  55     uuid(_uuid), flags(_flags) {}
  56 private:
  57   ~MClientReclaim() final {}
  58
  59   std::string uuid;
  60   uint32_t flags = 0;
  61
  62   template<class T, typename... Args>
  63   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  64   template<class T, typename... Args>
  65   friend MURef<T> crimson::make_message(Args&&... args);
  66 };
  67
  68 #endif