ceph/src/messages/MOSDPGPush.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) 2013 Inktank Storage, Inc.
   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 MOSDPGPUSH_H
  16 #define MOSDPGPUSH_H
  17
  18 #include "MOSDFastDispatchOp.h"
  19
  20 class MOSDPGPush : public MOSDFastDispatchOp {
  21 private:
  22   static constexpr int HEAD_VERSION = 4;
  23   static constexpr int COMPAT_VERSION = 2;
  24
  25 public:
  26   pg_shard_t from;
  27   spg_t pgid;
  28   epoch_t map_epoch = 0, min_epoch = 0;
  29   std::vector<PushOp> pushes;
  30   bool is_repair = false;
  31
  32 private:
  33   uint64_t cost = 0;
  34
  35 public:
  36   void compute_cost(CephContext *cct) {
  37     cost = 0;
  38     for (auto i = pushes.begin(); i != pushes.end(); ++i) {
  39       cost += i->cost(cct);
  40     }
  41   }
  42
  43   int get_cost() const override {
  44     return cost;
  45   }
  46
  47   epoch_t get_map_epoch() const override {
  48     return map_epoch;
  49   }
  50   epoch_t get_min_epoch() const override {
  51     return min_epoch;
  52   }
  53   spg_t get_spg() const override {
  54     return pgid;
  55   }
  56
  57   void set_cost(uint64_t c) {
  58     cost = c;
  59   }
  60
  61   MOSDPGPush()
  62     : MOSDFastDispatchOp{MSG_OSD_PG_PUSH, HEAD_VERSION, COMPAT_VERSION}
  63   {}
  64
  65   void decode_payload() override {
  66     using ceph::decode;
  67     auto p = payload.cbegin();
  68     decode(pgid.pgid, p);
  69     decode(map_epoch, p);
  70     decode(pushes, p);
  71     decode(cost, p);
  72     decode(pgid.shard, p);
  73     decode(from, p);
  74     if (header.version >= 3) {
  75       decode(min_epoch, p);
  76     } else {
  77       min_epoch = map_epoch;
  78     }
  79     if (header.version >= 4) {
  80       decode(is_repair, p);
  81     } else {
  82       is_repair = false;
  83     }
  84   }
  85
  86   void encode_payload(uint64_t features) override {
  87     using ceph::encode;
  88     encode(pgid.pgid, payload);
  89     encode(map_epoch, payload);
  90     encode(pushes, payload, features);
  91     encode(cost, payload);
  92     encode(pgid.shard, payload);
  93     encode(from, payload);
  94     encode(min_epoch, payload);
  95     encode(is_repair, payload);
  96   }
  97
  98   std::string_view get_type_name() const override { return "MOSDPGPush"; }
  99
 100   void print(std::ostream& out) const override {
 101     out << "MOSDPGPush(" << pgid
 102         << " " << map_epoch << "/" << min_epoch
 103         << " " << pushes;
 104     out << ")";
 105   }
 106
 107 private:
 108   template<class T, typename... Args>
 109   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
 110 };
 111
 112 #endif