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MOSDRepOp.h
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MOSDRepOp.h
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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_MOSDREPOP_H
#define CEPH_MOSDREPOP_H
#include "msg/Message.h"
#include "osd/osd_types.h"
/*
* OSD sub op - for internal ops on pobjects between primary and replicas(/stripes/whatever)
*/
class MOSDRepOp : public Message {
static const int HEAD_VERSION = 1;
static const int COMPAT_VERSION = 1;
public:
epoch_t map_epoch;
// metadata from original request
osd_reqid_t reqid;
spg_t pgid;
bufferlist::iterator p;
// Decoding flags. Decoding is only needed for messages catched by pipe reader.
bool final_decode_needed;
// subop
pg_shard_t from;
hobject_t poid;
__u8 acks_wanted;
// transaction to exec
bufferlist logbl;
pg_stat_t pg_stats;
// subop metadata
eversion_t version;
// piggybacked osd/og state
eversion_t pg_trim_to; // primary->replica: trim to here
eversion_t pg_trim_rollback_to; // primary->replica: trim rollback
// info to here
hobject_t new_temp_oid; ///< new temp object that we must now start tracking
hobject_t discard_temp_oid; ///< previously used temp object that we can now stop tracking
/// non-empty if this transaction involves a hit_set history update
boost::optional<pg_hit_set_history_t> updated_hit_set_history;
int get_cost() const {
return data.length();
}
virtual void decode_payload() {
p = payload.begin();
// splitted to partial and final
::decode(map_epoch, p);
::decode(reqid, p);
::decode(pgid, p);
}
void finish_decode() {
if (!final_decode_needed)
return; // Message is already final decoded
::decode(poid, p);
::decode(acks_wanted, p);
::decode(version, p);
::decode(logbl, p);
::decode(pg_stats, p);
::decode(pg_trim_to, p);
::decode(new_temp_oid, p);
::decode(discard_temp_oid, p);
::decode(from, p);
::decode(updated_hit_set_history, p);
::decode(pg_trim_rollback_to, p);
final_decode_needed = false;
}
virtual void encode_payload(uint64_t features) {
::encode(map_epoch, payload);
::encode(reqid, payload);
::encode(pgid, payload);
::encode(poid, payload);
::encode(acks_wanted, payload);
::encode(version, payload);
::encode(logbl, payload);
::encode(pg_stats, payload);
::encode(pg_trim_to, payload);
::encode(new_temp_oid, payload);
::encode(discard_temp_oid, payload);
::encode(from, payload);
::encode(updated_hit_set_history, payload);
::encode(pg_trim_rollback_to, payload);
}
MOSDRepOp()
: Message(MSG_OSD_REPOP, HEAD_VERSION, COMPAT_VERSION),
map_epoch(0),
final_decode_needed(true), acks_wanted (0) {}
MOSDRepOp(osd_reqid_t r, pg_shard_t from,
spg_t p, const hobject_t& po, int aw,
epoch_t mape, ceph_tid_t rtid, eversion_t v)
: Message(MSG_OSD_REPOP, HEAD_VERSION, COMPAT_VERSION),
map_epoch(mape),
reqid(r),
pgid(p),
final_decode_needed(false),
from(from),
poid(po),
acks_wanted(aw),
version(v) {
set_tid(rtid);
}
private:
~MOSDRepOp() {}
public:
const char *get_type_name() const { return "osd_repop"; }
void print(ostream& out) const {
out << "osd_repop(" << reqid
<< " " << pgid;
if (!final_decode_needed) {
out << " " << poid << " v " << version;
if (updated_hit_set_history)
out << ", has_updated_hit_set_history";
}
out << ")";
}
};
#endif