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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2013 Inktank Storage, Inc.
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef MOSDPGPULL_H
#define MOSDPGPULL_H
#include "MOSDFastDispatchOp.h"
class MOSDPGPull : public MOSDFastDispatchOp {
private:
static constexpr int HEAD_VERSION = 3;
static constexpr int COMPAT_VERSION = 2;
std::vector<PullOp> pulls;
public:
pg_shard_t from;
spg_t pgid;
epoch_t map_epoch = 0, min_epoch = 0;
uint64_t cost = 0;
epoch_t get_map_epoch() const override {
return map_epoch;
}
epoch_t get_min_epoch() const override {
return min_epoch;
}
spg_t get_spg() const override {
return pgid;
}
std::vector<PullOp> take_pulls() {
return std::move(pulls);
}
void set_pulls(std::vector<PullOp>&& pull_ops) {
pulls = std::move(pull_ops);
}
MOSDPGPull()
: MOSDFastDispatchOp{MSG_OSD_PG_PULL, HEAD_VERSION, COMPAT_VERSION}
{}
void compute_cost(CephContext *cct) {
cost = 0;
for (auto i = pulls.begin(); i != pulls.end(); ++i) {
cost += i->cost(cct);
}
}
int get_cost() const override {
return cost;
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(pgid.pgid, p);
decode(map_epoch, p);
decode(pulls, p);
decode(cost, p);
decode(pgid.shard, p);
decode(from, p);
if (header.version >= 3) {
decode(min_epoch, p);
} else {
min_epoch = map_epoch;
}
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(pgid.pgid, payload);
encode(map_epoch, payload);
encode(pulls, payload, features);
encode(cost, payload);
encode(pgid.shard, payload);
encode(from, payload);
encode(min_epoch, payload);
}
std::string_view get_type_name() const override { return "MOSDPGPull"; }
void print(std::ostream& out) const override {
out << "MOSDPGPull(" << pgid
<< " e" << map_epoch << "/" << min_epoch
<< " cost " << cost
<< ")";
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif
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