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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_MSTATFS_H
#define CEPH_MSTATFS_H
#include <optional>
#include <sys/statvfs.h> /* or <sys/statfs.h> */
#include "messages/PaxosServiceMessage.h"
class MStatfs final : public PaxosServiceMessage {
private:
static constexpr int HEAD_VERSION = 2;
static constexpr int COMPAT_VERSION = 1;
public:
uuid_d fsid;
std::optional<int64_t> data_pool;
MStatfs() : PaxosServiceMessage{CEPH_MSG_STATFS, 0, HEAD_VERSION, COMPAT_VERSION} {}
MStatfs(const uuid_d& f, ceph_tid_t t, std::optional<int64_t> _data_pool,
version_t v)
: PaxosServiceMessage{CEPH_MSG_STATFS, v, HEAD_VERSION, COMPAT_VERSION},
fsid(f), data_pool(_data_pool) {
set_tid(t);
}
private:
~MStatfs() final {}
public:
std::string_view get_type_name() const override { return "statfs"; }
void print(std::ostream& out) const override {
out << "statfs(" << get_tid() << " pool "
<< (data_pool ? *data_pool : -1) << " v" << version << ")";
}
void encode_payload(uint64_t features) override {
using ceph::encode;
paxos_encode();
encode(fsid, payload);
encode(data_pool, payload);
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
paxos_decode(p);
decode(fsid, p);
if (header.version >= 2) {
decode(data_pool, p);
} else {
data_pool = std::optional<int64_t> ();
}
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif
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