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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_MOSDPGLOG_H
#define CEPH_MOSDPGLOG_H
#include "msg/Message.h"
class MOSDPGLog : public Message {
epoch_t epoch;
/// query_epoch is the epoch of the query being responded to, or
/// the current epoch if this is not being sent in response to a
/// query. This allows the recipient to disregard responses to old
/// queries.
epoch_t query_epoch;
public:
pg_info_t info;
PG::Log log;
PG::Missing missing;
epoch_t get_epoch() { return epoch; }
pg_t get_pgid() { return info.pgid; }
epoch_t get_query_epoch() { return query_epoch; }
MOSDPGLog() {}
MOSDPGLog(version_t mv, pg_info_t& i) :
Message(MSG_OSD_PG_LOG),
epoch(mv), query_epoch(mv), info(i) { }
MOSDPGLog(version_t mv, pg_info_t& i, epoch_t query_epoch) :
Message(MSG_OSD_PG_LOG),
epoch(mv), query_epoch(query_epoch), info(i) { }
private:
~MOSDPGLog() {}
public:
const char *get_type_name() const { return "PGlog"; }
void print(ostream& out) const {
out << "pg_log(" << info.pgid << " epoch " << epoch
<< " query_epoch " << query_epoch << ")";
}
void encode_payload(uint64_t features) {
header.version = 2;
::encode(epoch, payload);
::encode(info, payload);
::encode(log, payload);
::encode(missing, payload);
::encode(query_epoch, payload);
}
void decode_payload() {
bufferlist::iterator p = payload.begin();
::decode(epoch, p);
::decode(info, p);
::decode(log, p);
::decode(missing, p);
if (header.version > 1) {
::decode(query_epoch, p);
}
}
};
#endif
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