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55103f4a6b
the operator<<() based formatter is only used in its test, so let's move it to where it is used. we can always bring it back later if it is required in other places. but better off implementing it as a fmt::formatter<> then. Refs #13245 Signed-off-by: Kefu Chai <kefu.chai@scylladb.com> Closes scylladb/scylladb#16142
63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
/*
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* Copyright (C) 2021-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include <cstdint>
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#include <string_view>
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#include <unordered_map>
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#include <vector>
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#include <seastar/core/sstring.hh>
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#include "gms/inet_address.hh"
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#include "db/commitlog/replay_position.hh"
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#include "locator/host_id.hh"
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namespace db {
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namespace hints {
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// A sync point is a collection of positions in hint queues which can be waited on.
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// The sync point encompasses one type of hints manager only.
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struct sync_point {
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using shard_rps = std::unordered_map<gms::inet_address, db::replay_position>;
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// ID of the host which created this sync point
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locator::host_id host_id;
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std::vector<shard_rps> regular_per_shard_rps;
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std::vector<shard_rps> mv_per_shard_rps;
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/// \brief Decodes a sync point from an encoded, textual form (a hexadecimal string).
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static sync_point decode(sstring_view s);
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/// \brief Encodes the sync point in a textual form (a hexadecimal string)
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sstring encode() const;
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bool operator==(const sync_point& other) const = default;
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};
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// IDL type
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// Contains per-endpoint and per-shard information about replay positions
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// for a particular type of hint queues (regular mutation hints or MV update hints)
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struct per_manager_sync_point_v1 {
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std::vector<gms::inet_address> addresses;
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std::vector<db::replay_position> flattened_rps;
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};
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// IDL type
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struct sync_point_v1 {
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locator::host_id host_id;
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uint16_t shard_count;
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// Sync point information for regular mutation hints
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db::hints::per_manager_sync_point_v1 regular_sp;
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// Sync point information for materialized view hints
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db::hints::per_manager_sync_point_v1 mv_sp;
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};
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}
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}
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