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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 <boost/intrusive_ptr.hpp>
#include <seastar/core/future.hh>
#include <seastar/core/weak_ptr.hh>
#include "include/buffer_fwd.h"
#include "osd/osd_types.h"
#include "acked_peers.h"
#include "pg_backend.h"
namespace crimson::osd {
class ShardServices;
}
class ReplicatedBackend : public PGBackend
{
public:
ReplicatedBackend(pg_t pgid, pg_shard_t whoami,
CollectionRef coll,
crimson::osd::ShardServices& shard_services,
DoutPrefixProvider &dpp);
void got_rep_op_reply(const MOSDRepOpReply& reply) final;
seastar::future<> stop() final;
void on_actingset_changed(bool same_primary) final;
private:
ll_read_ierrorator::future<ceph::bufferlist>
_read(const hobject_t& hoid, uint64_t off,
uint64_t len, uint32_t flags) override;
rep_op_fut_t _submit_transaction(std::set<pg_shard_t>&& pg_shards,
const hobject_t& hoid,
ceph::os::Transaction&& txn,
osd_op_params_t&& osd_op_p,
epoch_t min_epoch, epoch_t max_epoch,
std::vector<pg_log_entry_t>&& log_entries) final;
const pg_t pgid;
const pg_shard_t whoami;
class pending_on_t : public seastar::weakly_referencable<pending_on_t> {
public:
pending_on_t(size_t pending, const eversion_t& at_version)
: pending{static_cast<unsigned>(pending)}, at_version(at_version)
{}
unsigned pending;
// The order of pending_txns' at_version must be the same as their
// corresponding ceph_tid_t, as we rely on this condition for checking
// whether a client request is already completed. To put it another
// way, client requests at_version must be updated synchorously/simultaneously
// with ceph_tid_t.
const eversion_t at_version;
crimson::osd::acked_peers_t acked_peers;
seastar::shared_promise<> all_committed;
};
using pending_transactions_t = std::map<ceph_tid_t, pending_on_t>;
pending_transactions_t pending_trans;
seastar::future<> request_committed(
const osd_reqid_t& reqid, const eversion_t& at_version) final;
};
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