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40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
/*
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* Copyright (C) 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.1
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*/
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#pragma once
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#include "dht/decorated_key.hh"
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#include "mutation/position_in_partition.hh"
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// Represent a position of a mutation_fragment read from a flat mutation
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// reader. Repair nodes negotiate a small range identified by two
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// repair_sync_boundary to work on in each round.
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struct repair_sync_boundary {
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dht::decorated_key pk;
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position_in_partition position;
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class tri_compare {
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dht::ring_position_comparator _pk_cmp;
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position_in_partition::tri_compare _position_cmp;
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public:
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tri_compare(const schema& s) : _pk_cmp(s), _position_cmp(s) { }
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std::strong_ordering operator()(const repair_sync_boundary& a, const repair_sync_boundary& b) const {
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auto ret = _pk_cmp(a.pk, b.pk);
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if (ret == 0) {
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ret = _position_cmp(a.position, b.position);
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}
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return ret;
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}
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};
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};
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template <> struct fmt::formatter<repair_sync_boundary> {
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constexpr auto parse(format_parse_context& ctx) { return ctx.begin(); }
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auto format(const repair_sync_boundary& boundary, fmt::format_context& ctx) const {
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return fmt::format_to(ctx.out(), "{{ {}, {} }}", boundary.pk, boundary.position);
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}
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};
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