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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_MDENTRYUNLINK_H
#define CEPH_MDENTRYUNLINK_H
#include <string_view>
#include "messages/MMDSOp.h"
class MDentryUnlink final : public MMDSOp {
private:
static constexpr int HEAD_VERSION = 2;
static constexpr int COMPAT_VERSION = 1;
dirfrag_t dirfrag;
std::string dn;
bool unlinking = false;
public:
dirfrag_t get_dirfrag() const { return dirfrag; }
const std::string& get_dn() const { return dn; }
bool is_unlinking() const { return unlinking; }
ceph::buffer::list straybl;
ceph::buffer::list snapbl;
protected:
MDentryUnlink() :
MMDSOp(MSG_MDS_DENTRYUNLINK, HEAD_VERSION, COMPAT_VERSION) { }
MDentryUnlink(dirfrag_t df, std::string_view n, bool u=false) :
MMDSOp(MSG_MDS_DENTRYUNLINK, HEAD_VERSION, COMPAT_VERSION),
dirfrag(df), dn(n), unlinking(u) {}
~MDentryUnlink() final {}
public:
std::string_view get_type_name() const override { return "dentry_unlink";}
void print(std::ostream& o) const override {
o << "dentry_unlink(" << dirfrag << " " << dn << ")";
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(dirfrag, p);
decode(dn, p);
decode(straybl, p);
if (header.version >= 2)
decode(unlinking, p);
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(dirfrag, payload);
encode(dn, payload);
encode(straybl, payload);
encode(unlinking, payload);
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
class MDentryUnlinkAck final : public MMDSOp {
private:
static constexpr int HEAD_VERSION = 1;
static constexpr int COMPAT_VERSION = 1;
dirfrag_t dirfrag;
std::string dn;
public:
dirfrag_t get_dirfrag() const { return dirfrag; }
const std::string& get_dn() const { return dn; }
protected:
MDentryUnlinkAck() :
MMDSOp(MSG_MDS_DENTRYUNLINK_ACK, HEAD_VERSION, COMPAT_VERSION) { }
MDentryUnlinkAck(dirfrag_t df, std::string_view n) :
MMDSOp(MSG_MDS_DENTRYUNLINK_ACK, HEAD_VERSION, COMPAT_VERSION),
dirfrag(df), dn(n) {}
~MDentryUnlinkAck() final {}
public:
std::string_view get_type_name() const override { return "dentry_unlink_ack";}
void print(std::ostream& o) const override {
o << "dentry_unlink_ack(" << dirfrag << " " << dn << ")";
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(dirfrag, p);
decode(dn, p);
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(dirfrag, payload);
encode(dn, payload);
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif
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