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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_MEXPORTDIRDISCOVER_H
#define CEPH_MEXPORTDIRDISCOVER_H
#include "include/types.h"
#include "messages/MMDSOp.h"
class MExportDirDiscover final : public MMDSOp {
private:
static constexpr int HEAD_VERSION = 1;
static constexpr int COMPAT_VERSION = 1;
mds_rank_t from = -1;
dirfrag_t dirfrag;
filepath path;
public:
mds_rank_t get_source_mds() const { return from; }
inodeno_t get_ino() const { return dirfrag.ino; }
dirfrag_t get_dirfrag() const { return dirfrag; }
const filepath& get_path() const { return path; }
bool started;
protected:
MExportDirDiscover() :
MMDSOp{MSG_MDS_EXPORTDIRDISCOVER, HEAD_VERSION, COMPAT_VERSION},
started(false) { }
MExportDirDiscover(dirfrag_t df, filepath& p, mds_rank_t f, uint64_t tid) :
MMDSOp{MSG_MDS_EXPORTDIRDISCOVER, HEAD_VERSION, COMPAT_VERSION},
from(f), dirfrag(df), path(p), started(false) {
set_tid(tid);
}
~MExportDirDiscover() final {}
public:
std::string_view get_type_name() const override { return "ExDis"; }
void print(std::ostream& o) const override {
o << "export_discover(" << dirfrag << " " << path << ")";
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(from, p);
decode(dirfrag, p);
decode(path, p);
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(from, payload);
encode(dirfrag, payload);
encode(path, 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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