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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#pragma once
#include <map>
#include <memory>
#include <string>
#include <boost/smart_ptr/local_shared_ptr.hpp>
#include <boost/container/flat_set.hpp>
#include "crimson/os/futurized_store.h"
#include "crimson/os/futurized_collection.h"
#include "crimson/osd/acked_peers.h"
#include "crimson/osd/pg.h"
#include "crimson/common/shared_lru.h"
#include "messages/MOSDOp.h"
#include "messages/MOSDOpReply.h"
#include "os/Transaction.h"
#include "osd/osd_types.h"
#include "crimson/osd/object_context.h"
#include "crimson/osd/osd_operation.h"
#include "crimson/osd/osd_operations/osdop_params.h"
struct hobject_t;
namespace ceph::os {
class Transaction;
}
namespace crimson::osd {
class ShardServices;
}
class PGBackend
{
protected:
using CollectionRef = crimson::os::CollectionRef;
using ec_profile_t = std::map<std::string, std::string>;
// low-level read errorator
using ll_read_errorator = crimson::os::FuturizedStore::read_errorator;
public:
using load_metadata_ertr = crimson::errorator<
crimson::ct_error::object_corrupted>;
PGBackend(shard_id_t shard, CollectionRef coll, crimson::os::FuturizedStore* store);
virtual ~PGBackend() = default;
static std::unique_ptr<PGBackend> create(pg_t pgid,
const pg_shard_t pg_shard,
const pg_pool_t& pool,
crimson::os::CollectionRef coll,
crimson::osd::ShardServices& shard_services,
const ec_profile_t& ec_profile);
using attrs_t =
std::map<std::string, ceph::bufferptr, std::less<>>;
using read_errorator = ll_read_errorator::extend<
crimson::ct_error::object_corrupted>;
read_errorator::future<> read(
const ObjectState& os,
OSDOp& osd_op);
read_errorator::future<> sparse_read(
const ObjectState& os,
OSDOp& osd_op);
using checksum_errorator = ll_read_errorator::extend<
crimson::ct_error::object_corrupted,
crimson::ct_error::invarg>;
checksum_errorator::future<> checksum(
const ObjectState& os,
OSDOp& osd_op);
using cmp_ext_errorator = ll_read_errorator::extend<
crimson::ct_error::invarg>;
cmp_ext_errorator::future<> cmp_ext(
const ObjectState& os,
OSDOp& osd_op);
using stat_errorator = crimson::errorator<crimson::ct_error::enoent>;
stat_errorator::future<> stat(
const ObjectState& os,
OSDOp& osd_op);
// TODO: switch the entire write family to errorator.
using write_ertr = crimson::errorator<
crimson::ct_error::file_too_large>;
seastar::future<> create(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans);
seastar::future<> remove(
ObjectState& os,
ceph::os::Transaction& txn);
seastar::future<> write(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
seastar::future<> write_same(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
seastar::future<> writefull(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
using append_errorator = crimson::errorator<
crimson::ct_error::invarg>;
append_errorator::future<> append(
ObjectState& os,
OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
write_ertr::future<> truncate(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
write_ertr::future<> zero(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
seastar::future<crimson::osd::acked_peers_t> mutate_object(
std::set<pg_shard_t> pg_shards,
crimson::osd::ObjectContextRef &&obc,
ceph::os::Transaction&& txn,
const osd_op_params_t& osd_op_p,
epoch_t min_epoch,
epoch_t map_epoch,
std::vector<pg_log_entry_t>&& log_entries);
seastar::future<std::tuple<std::vector<hobject_t>, hobject_t>> list_objects(
const hobject_t& start,
uint64_t limit) const;
seastar::future<> setxattr(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans);
using get_attr_errorator = crimson::os::FuturizedStore::get_attr_errorator;
get_attr_errorator::future<> getxattr(
const ObjectState& os,
OSDOp& osd_op) const;
get_attr_errorator::future<ceph::bufferptr> getxattr(
const hobject_t& soid,
std::string_view key) const;
get_attr_errorator::future<> get_xattrs(
const ObjectState& os,
OSDOp& osd_op) const;
using rm_xattr_ertr = crimson::errorator<crimson::ct_error::enoent>;
rm_xattr_ertr::future<> rm_xattr(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans);
seastar::future<struct stat> stat(
CollectionRef c,
const ghobject_t& oid) const;
seastar::future<std::map<uint64_t, uint64_t>> fiemap(
CollectionRef c,
const ghobject_t& oid,
uint64_t off,
uint64_t len);
// OMAP
ll_read_errorator::future<> omap_get_keys(
const ObjectState& os,
OSDOp& osd_op) const;
ll_read_errorator::future<> omap_get_vals(
const ObjectState& os,
OSDOp& osd_op) const;
ll_read_errorator::future<> omap_get_vals_by_keys(
const ObjectState& os,
OSDOp& osd_op) const;
seastar::future<> omap_set_vals(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
ll_read_errorator::future<ceph::bufferlist> omap_get_header(
const crimson::os::CollectionRef& c,
const ghobject_t& oid) const;
ll_read_errorator::future<> omap_get_header(
const ObjectState& os,
OSDOp& osd_op) const;
seastar::future<> omap_set_header(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans);
seastar::future<> omap_remove_range(
ObjectState& os,
const OSDOp& osd_op,
ceph::os::Transaction& trans);
using omap_clear_ertr = crimson::errorator<crimson::ct_error::enoent>;
omap_clear_ertr::future<> omap_clear(
ObjectState& os,
OSDOp& osd_op,
ceph::os::Transaction& trans,
osd_op_params_t& osd_op_params);
virtual void got_rep_op_reply(const MOSDRepOpReply&) {}
virtual seastar::future<> stop() = 0;
struct peering_info_t {
bool is_primary;
};
virtual void on_actingset_changed(peering_info_t pi) = 0;
virtual void on_activate_complete();
protected:
const shard_id_t shard;
CollectionRef coll;
crimson::os::FuturizedStore* store;
bool stopping = false;
std::optional<peering_info_t> peering;
public:
struct loaded_object_md_t {
ObjectState os;
std::optional<SnapSet> ss;
using ref = std::unique_ptr<loaded_object_md_t>;
};
load_metadata_ertr::future<loaded_object_md_t::ref> load_metadata(
const hobject_t &oid);
private:
virtual ll_read_errorator::future<ceph::bufferlist> _read(
const hobject_t& hoid,
size_t offset,
size_t length,
uint32_t flags) = 0;
bool maybe_create_new_object(ObjectState& os, ceph::os::Transaction& txn);
virtual seastar::future<crimson::osd::acked_peers_t>
_submit_transaction(std::set<pg_shard_t>&& pg_shards,
const hobject_t& hoid,
ceph::os::Transaction&& txn,
const osd_op_params_t& osd_op_p,
epoch_t min_epoch, epoch_t max_epoch,
std::vector<pg_log_entry_t>&& log_entries) = 0;
friend class ReplicatedRecoveryBackend;
};
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