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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_MMDSBEACON_H
#define CEPH_MMDSBEACON_H
#include "messages/PaxosServiceMessage.h"
#include "include/types.h"
#include "mds/MDSMap.h"
#include <uuid/uuid.h>
class MMDSBeacon : public PaxosServiceMessage {
uuid_d fsid;
uint64_t global_id;
string name;
__u32 state;
version_t seq;
__s32 standby_for_rank;
string standby_for_name;
CompatSet compat;
public:
MMDSBeacon() : PaxosServiceMessage(MSG_MDS_BEACON, 0) {}
MMDSBeacon(const uuid_d &f, uint64_t g, string& n, epoch_t les, int st, version_t se) :
PaxosServiceMessage(MSG_MDS_BEACON, les),
fsid(f), global_id(g), name(n), state(st), seq(se),
standby_for_rank(-1) { }
private:
~MMDSBeacon() {}
public:
uuid_d& get_fsid() { return fsid; }
uint64_t get_global_id() { return global_id; }
string& get_name() { return name; }
epoch_t get_last_epoch_seen() { return version; }
int get_state() { return state; }
version_t get_seq() { return seq; }
const char *get_type_name() { return "mdsbeacon"; }
int get_standby_for_rank() { return standby_for_rank; }
const string& get_standby_for_name() { return standby_for_name; }
CompatSet& get_compat() { return compat; }
void set_compat(const CompatSet& c) { compat = c; }
void set_standby_for_rank(int r) { standby_for_rank = r; }
void set_standby_for_name(string& n) { standby_for_name = n; }
void set_standby_for_name(const char* c) { standby_for_name.assign(c); }
void print(ostream& out) {
out << "mdsbeacon(" << global_id << "/" << name << " " << ceph_mds_state_name(state)
<< " seq " << seq << " v" << version << ")";
}
void encode_payload(uint64_t features) {
header.version = 2;
paxos_encode();
::encode(fsid, payload);
::encode(global_id, payload);
::encode(state, payload);
::encode(seq, payload);
::encode(name, payload);
::encode(standby_for_rank, payload);
::encode(standby_for_name, payload);
::encode(compat, payload);
}
void decode_payload() {
bufferlist::iterator p = payload.begin();
paxos_decode(p);
::decode(fsid, p);
::decode(global_id, p);
::decode(state, p);
::decode(seq, p);
::decode(name, p);
::decode(standby_for_rank, p);
::decode(standby_for_name, p);
if (header.version >= 2)
::decode(compat, p);
}
};
#endif
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