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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) 2004-2006 Sage Weil <sage@newdream.net>
*
* 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 CEPH_MEXPORTDIRPREP_H
#define CEPH_MEXPORTDIRPREP_H
#include "include/types.h"
#include "messages/MMDSOp.h"
class MExportDirPrep final : public MMDSOp {
private:
static constexpr int HEAD_VERSION = 1;
static constexpr int COMPAT_VERSION = 1;
dirfrag_t dirfrag;
public:
ceph::buffer::list basedir;
std::list<dirfrag_t> bounds;
std::list<ceph::buffer::list> traces;
private:
std::set<mds_rank_t> bystanders;
bool b_did_assim = false;
public:
dirfrag_t get_dirfrag() const { return dirfrag; }
const std::list<dirfrag_t>& get_bounds() const { return bounds; }
const std::set<mds_rank_t> &get_bystanders() const { return bystanders; }
bool did_assim() const { return b_did_assim; }
void mark_assim() { b_did_assim = true; }
protected:
MExportDirPrep() = default;
MExportDirPrep(dirfrag_t df, uint64_t tid) :
MMDSOp{MSG_MDS_EXPORTDIRPREP, HEAD_VERSION, COMPAT_VERSION},
dirfrag(df)
{
set_tid(tid);
}
~MExportDirPrep() final {}
public:
std::string_view get_type_name() const override { return "ExP"; }
void print(std::ostream& o) const override {
o << "export_prep(" << dirfrag << ")";
}
void add_bound(dirfrag_t df) {
bounds.push_back( df );
}
void add_trace(ceph::buffer::list& bl) {
traces.push_back(bl);
}
void add_bystander(mds_rank_t who) {
bystanders.insert(who);
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(dirfrag, p);
decode(basedir, p);
decode(bounds, p);
decode(traces, p);
decode(bystanders, p);
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(dirfrag, payload);
encode(basedir, payload);
encode(bounds, payload);
encode(traces, payload);
encode(bystanders, payload);
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
template<class T, typename... Args>
friend MURef<T> crimson::make_message(Args&&... args);
};
#endif
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