ceph/src/messages/MOSDPGTrim.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_MOSDPGTRIM_H
  16 #define CEPH_MOSDPGTRIM_H
  17
  18 #include "msg/Message.h"
  19 #include "messages/MOSDPeeringOp.h"
  20 #include "osd/PGPeeringEvent.h"
  21
  22 class MOSDPGTrim final : public MOSDPeeringOp {
  23 private:
  24   static constexpr int HEAD_VERSION = 2;
  25   static constexpr int COMPAT_VERSION = 2;
  26
  27 public:
  28   epoch_t epoch = 0;
  29   spg_t pgid;
  30   eversion_t trim_to;
  31
  32   epoch_t get_epoch() const { return epoch; }
  33   spg_t get_spg() const {
  34     return pgid;
  35   }
  36   epoch_t get_map_epoch() const {
  37     return epoch;
  38   }
  39   epoch_t get_min_epoch() const {
  40     return epoch;
  41   }
  42   PGPeeringEvent *get_event() override {
  43     return new PGPeeringEvent(
  44       epoch,
  45       epoch,
  46       MTrim(epoch, get_source().num(), pgid.shard, trim_to));
  47   }
  48
  49   MOSDPGTrim() : MOSDPeeringOp{MSG_OSD_PG_TRIM, HEAD_VERSION, COMPAT_VERSION} {}
  50   MOSDPGTrim(version_t mv, spg_t p, eversion_t tt) :
  51     MOSDPeeringOp{MSG_OSD_PG_TRIM, HEAD_VERSION, COMPAT_VERSION},
  52     epoch(mv), pgid(p), trim_to(tt) { }
  53 private:
  54   ~MOSDPGTrim() final {}
  55
  56 public:
  57   std::string_view get_type_name() const override { return "pg_trim"; }
  58   void inner_print(std::ostream& out) const override {
  59     out << trim_to;
  60   }
  61
  62   void encode_payload(uint64_t features) override {
  63     using ceph::encode;
  64     encode(epoch, payload);
  65     encode(pgid.pgid, payload);
  66     encode(trim_to, payload);
  67     encode(pgid.shard, payload);
  68   }
  69   void decode_payload() override {
  70     using ceph::decode;
  71     auto p = payload.cbegin();
  72     decode(epoch, p);
  73     decode(pgid.pgid, p);
  74     decode(trim_to, p);
  75     decode(pgid.shard, p);
  76   }
  77 private:
  78   template<class T, typename... Args>
  79   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  80 };
  81
  82 #endif