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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_MDENTRYLINK_H
#define CEPH_MDENTRYLINK_H
#include <string_view>
#include "messages/MMDSOp.h"
class MDentryLink final : public MMDSOp {
private:
static constexpr int HEAD_VERSION = 1;
static constexpr int COMPAT_VERSION = 1;
dirfrag_t subtree;
dirfrag_t dirfrag;
std::string dn;
bool is_primary = false;
public:
dirfrag_t get_subtree() const { return subtree; }
dirfrag_t get_dirfrag() const { return dirfrag; }
const std::string& get_dn() const { return dn; }
bool get_is_primary() const { return is_primary; }
ceph::buffer::list bl;
protected:
MDentryLink() :
MMDSOp(MSG_MDS_DENTRYLINK, HEAD_VERSION, COMPAT_VERSION) { }
MDentryLink(dirfrag_t r, dirfrag_t df, std::string_view n, bool p) :
MMDSOp(MSG_MDS_DENTRYLINK, HEAD_VERSION, COMPAT_VERSION),
subtree(r),
dirfrag(df),
dn(n),
is_primary(p) {}
~MDentryLink() final {}
public:
std::string_view get_type_name() const override { return "dentry_link";}
void print(std::ostream& o) const override {
o << "dentry_link(" << dirfrag << " " << dn << ")";
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(subtree, p);
decode(dirfrag, p);
decode(dn, p);
decode(is_primary, p);
decode(bl, p);
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(subtree, payload);
encode(dirfrag, payload);
encode(dn, payload);
encode(is_primary, payload);
encode(bl, 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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