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
  21 class MOSDPGTrim : public MessageInstance<MOSDPGTrim, MOSDPeeringOp> {
  22 public:
  23   friend factory;
  24 private:
  25   static constexpr int HEAD_VERSION = 2;
  26   static constexpr int COMPAT_VERSION = 2;
  27
  28 public:
  29   epoch_t epoch = 0;
  30   spg_t pgid;
  31   eversion_t trim_to;
  32
  33   epoch_t get_epoch() const { return epoch; }
  34   spg_t get_spg() const {
  35     return pgid;
  36   }
  37   epoch_t get_map_epoch() const {
  38     return epoch;
  39   }
  40   epoch_t get_min_epoch() const {
  41     return epoch;
  42   }
  43   PGPeeringEvent *get_event() override {
  44     return new PGPeeringEvent(
  45       epoch,
  46       epoch,
  47       MTrim(epoch, get_source().num(), pgid.shard, trim_to));
  48   }
  49
  50   MOSDPGTrim() : MessageInstance(MSG_OSD_PG_TRIM, HEAD_VERSION, COMPAT_VERSION) {}
  51   MOSDPGTrim(version_t mv, spg_t p, eversion_t tt) :
  52     MessageInstance(MSG_OSD_PG_TRIM, HEAD_VERSION, COMPAT_VERSION),
  53     epoch(mv), pgid(p), trim_to(tt) { }
  54 private:
  55   ~MOSDPGTrim() override {}
  56
  57 public:
  58   std::string_view get_type_name() const override { return "pg_trim"; }
  59   void inner_print(ostream& out) const override {
  60     out << trim_to;
  61   }
  62
  63   void encode_payload(uint64_t features) override {
  64     using ceph::encode;
  65     encode(epoch, payload);
  66     encode(pgid.pgid, payload);
  67     encode(trim_to, payload);
  68     encode(pgid.shard, payload);
  69   }
  70   void decode_payload() override {
  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 };
  78
  79 #endif