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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_MOSDREPOPREPLY_H
#define CEPH_MOSDREPOPREPLY_H
#include "MOSDFastDispatchOp.h"
/*
* OSD Client Subop reply
*
* oid - object id
* op - OSD_OP_DELETE, etc.
*
*/
class MOSDRepOpReply : public MessageInstance<MOSDRepOpReply, MOSDFastDispatchOp> {
public:
friend factory;
private:
static constexpr int HEAD_VERSION = 2;
static constexpr int COMPAT_VERSION = 1;
public:
epoch_t map_epoch, min_epoch;
// subop metadata
osd_reqid_t reqid;
pg_shard_t from;
spg_t pgid;
// result
__u8 ack_type;
int32_t result;
// piggybacked osd state
eversion_t last_complete_ondisk;
bufferlist::const_iterator p;
// Decoding flags. Decoding is only needed for messages caught by pipe reader.
bool final_decode_needed;
epoch_t get_map_epoch() const override {
return map_epoch;
}
epoch_t get_min_epoch() const override {
return min_epoch;
}
spg_t get_spg() const override {
return pgid;
}
void decode_payload() override {
p = payload.cbegin();
decode(map_epoch, p);
if (header.version >= 2) {
decode(min_epoch, p);
decode_trace(p);
} else {
min_epoch = map_epoch;
}
decode(reqid, p);
decode(pgid, p);
}
void finish_decode() {
if (!final_decode_needed)
return; // Message is already final decoded
decode(ack_type, p);
decode(result, p);
decode(last_complete_ondisk, p);
decode(from, p);
final_decode_needed = false;
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(map_epoch, payload);
if (HAVE_FEATURE(features, SERVER_LUMINOUS)) {
header.version = HEAD_VERSION;
encode(min_epoch, payload);
encode_trace(payload, features);
} else {
header.version = 1;
}
encode(reqid, payload);
encode(pgid, payload);
encode(ack_type, payload);
encode(result, payload);
encode(last_complete_ondisk, payload);
encode(from, payload);
}
spg_t get_pg() { return pgid; }
int get_ack_type() { return ack_type; }
bool is_ondisk() { return ack_type & CEPH_OSD_FLAG_ONDISK; }
bool is_onnvram() { return ack_type & CEPH_OSD_FLAG_ONNVRAM; }
int get_result() { return result; }
void set_last_complete_ondisk(eversion_t v) { last_complete_ondisk = v; }
eversion_t get_last_complete_ondisk() const { return last_complete_ondisk; }
public:
MOSDRepOpReply(
const MOSDRepOp *req, pg_shard_t from, int result_, epoch_t e, epoch_t mine,
int at) :
MessageInstance(MSG_OSD_REPOPREPLY, HEAD_VERSION, COMPAT_VERSION),
map_epoch(e),
min_epoch(mine),
reqid(req->reqid),
from(from),
pgid(req->pgid.pgid, req->from.shard),
ack_type(at),
result(result_),
final_decode_needed(false) {
set_tid(req->get_tid());
}
MOSDRepOpReply()
: MessageInstance(MSG_OSD_REPOPREPLY, HEAD_VERSION, COMPAT_VERSION),
map_epoch(0),
min_epoch(0),
ack_type(0), result(0),
final_decode_needed(true) {}
private:
~MOSDRepOpReply() override {}
public:
std::string_view get_type_name() const override { return "osd_repop_reply"; }
void print(ostream& out) const override {
out << "osd_repop_reply(" << reqid
<< " " << pgid << " e" << map_epoch << "/" << min_epoch;
if (!final_decode_needed) {
if (ack_type & CEPH_OSD_FLAG_ONDISK)
out << " ondisk";
if (ack_type & CEPH_OSD_FLAG_ONNVRAM)
out << " onnvram";
if (ack_type & CEPH_OSD_FLAG_ACK)
out << " ack";
out << ", result = " << result;
}
out << ")";
}
};
#endif
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