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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_MMONPROBE_H
#define CEPH_MMONPROBE_H
#include "include/ceph_features.h"
#include "common/ceph_releases.h"
#include "msg/Message.h"
#include "mon/MonMap.h"
class MMonProbe final : public Message {
public:
static constexpr int HEAD_VERSION = 8;
static constexpr int COMPAT_VERSION = 5;
enum {
OP_PROBE = 1,
OP_REPLY = 2,
OP_SLURP = 3,
OP_SLURP_LATEST = 4,
OP_DATA = 5,
OP_MISSING_FEATURES = 6,
};
static const char *get_opname(int o) {
switch (o) {
case OP_PROBE: return "probe";
case OP_REPLY: return "reply";
case OP_SLURP: return "slurp";
case OP_SLURP_LATEST: return "slurp_latest";
case OP_DATA: return "data";
case OP_MISSING_FEATURES: return "missing_features";
default: ceph_abort(); return 0;
}
}
uuid_d fsid;
int32_t op = 0;
std::string name;
std::set<int32_t> quorum;
int leader = -1;
ceph::buffer::list monmap_bl;
version_t paxos_first_version = 0;
version_t paxos_last_version = 0;
bool has_ever_joined = 0;
uint64_t required_features = 0;
ceph_release_t mon_release{ceph_release_t::unknown};
MMonProbe()
: Message{MSG_MON_PROBE, HEAD_VERSION, COMPAT_VERSION} {}
MMonProbe(const uuid_d& f, int o, const std::string& n, bool hej, ceph_release_t mr)
: Message{MSG_MON_PROBE, HEAD_VERSION, COMPAT_VERSION},
fsid(f),
op(o),
name(n),
paxos_first_version(0),
paxos_last_version(0),
has_ever_joined(hej),
required_features(0),
mon_release{mr} {}
private:
~MMonProbe() final {}
public:
std::string_view get_type_name() const override { return "mon_probe"; }
void print(std::ostream& out) const override {
out << "mon_probe(" << get_opname(op) << " " << fsid << " name " << name;
if (quorum.size())
out << " quorum " << quorum;
out << " leader " << leader;
if (op == OP_REPLY) {
out << " paxos("
<< " fc " << paxos_first_version
<< " lc " << paxos_last_version
<< " )";
}
if (!has_ever_joined)
out << " new";
if (required_features)
out << " required_features " << required_features;
if (mon_release != ceph_release_t::unknown)
out << " mon_release " << mon_release;
out << ")";
}
void encode_payload(uint64_t features) override {
using ceph::encode;
if (monmap_bl.length() &&
((features & CEPH_FEATURE_MONENC) == 0 ||
(features & CEPH_FEATURE_MSG_ADDR2) == 0)) {
// reencode old-format monmap
MonMap t;
t.decode(monmap_bl);
monmap_bl.clear();
t.encode(monmap_bl, features);
}
encode(fsid, payload);
encode(op, payload);
encode(name, payload);
encode(quorum, payload);
encode(monmap_bl, payload);
encode(has_ever_joined, payload);
encode(paxos_first_version, payload);
encode(paxos_last_version, payload);
encode(required_features, payload);
encode(mon_release, payload);
encode(leader, payload);
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(fsid, p);
decode(op, p);
decode(name, p);
decode(quorum, p);
decode(monmap_bl, p);
decode(has_ever_joined, p);
decode(paxos_first_version, p);
decode(paxos_last_version, p);
if (header.version >= 6)
decode(required_features, p);
else
required_features = 0;
if (header.version >= 7)
decode(mon_release, p);
else
mon_release = ceph_release_t::unknown;
if (header.version >= 8) {
decode(leader, p);
} else if (quorum.size()) {
leader = *quorum.begin();
}
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif
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