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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_MOSDPGSCAN_H
#define CEPH_MOSDPGSCAN_H
#include "MOSDFastDispatchOp.h"
class MOSDPGScan final : public MOSDFastDispatchOp {
private:
static constexpr int HEAD_VERSION = 2;
static constexpr int COMPAT_VERSION = 2;
public:
enum {
OP_SCAN_GET_DIGEST = 1, // just objects and versions
OP_SCAN_DIGEST = 2, // result
};
const char *get_op_name(int o) const {
switch (o) {
case OP_SCAN_GET_DIGEST: return "get_digest";
case OP_SCAN_DIGEST: return "digest";
default: return "???";
}
}
__u32 op = 0;
epoch_t map_epoch = 0, query_epoch = 0;
pg_shard_t from;
spg_t pgid;
hobject_t begin, end;
epoch_t get_map_epoch() const override {
return map_epoch;
}
epoch_t get_min_epoch() const override {
return query_epoch;
}
spg_t get_spg() const override {
return pgid;
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(op, p);
decode(map_epoch, p);
decode(query_epoch, p);
decode(pgid.pgid, p);
decode(begin, p);
decode(end, p);
// handle hobject_t format upgrade
if (!begin.is_max() && begin.pool == -1)
begin.pool = pgid.pool();
if (!end.is_max() && end.pool == -1)
end.pool = pgid.pool();
decode(from, p);
decode(pgid.shard, p);
}
void encode_payload(uint64_t features) override {
using ceph::encode;
encode(op, payload);
encode(map_epoch, payload);
if (!HAVE_FEATURE(features, SERVER_NAUTILUS)) {
// pre-nautilus OSDs do not set last_peering_reset properly
encode(map_epoch, payload);
} else {
encode(query_epoch, payload);
}
encode(pgid.pgid, payload);
encode(begin, payload);
encode(end, payload);
encode(from, payload);
encode(pgid.shard, payload);
}
MOSDPGScan()
: MOSDFastDispatchOp{MSG_OSD_PG_SCAN, HEAD_VERSION, COMPAT_VERSION} {}
MOSDPGScan(__u32 o, pg_shard_t from,
epoch_t e, epoch_t qe, spg_t p, hobject_t be, hobject_t en)
: MOSDFastDispatchOp{MSG_OSD_PG_SCAN, HEAD_VERSION, COMPAT_VERSION},
op(o),
map_epoch(e), query_epoch(qe),
from(from),
pgid(p),
begin(be), end(en) {
}
private:
~MOSDPGScan() final {}
public:
std::string_view get_type_name() const override { return "pg_scan"; }
void print(std::ostream& out) const override {
out << "pg_scan(" << get_op_name(op)
<< " " << pgid
<< " " << begin << "-" << end
<< " e " << map_epoch << "/" << query_epoch
<< ")";
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif
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