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84e1ac5248
Thiss check validates that static values of supported versions are "in sync" with each other. It's enough to do it once when compiling sstable_version.cc, not every time the header is included. refs: #1 (not that it helps noticeably, but technically it fits) Signed-off-by: Pavel Emelyanov <xemul@scylladb.com> Closes scylladb/scylladb#24839
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*
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* Copyright (C) 2017-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#pragma once
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#include <type_traits>
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#include <seastar/core/sstring.hh>
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#include <seastar/core/enum.hh>
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namespace sstables {
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enum class sstable_version_types { ka, la, mc, md, me };
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enum class sstable_format_types { big };
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constexpr std::array<sstable_version_types, 5> all_sstable_versions = {
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sstable_version_types::ka,
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sstable_version_types::la,
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sstable_version_types::mc,
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sstable_version_types::md,
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sstable_version_types::me,
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};
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constexpr std::array<sstable_version_types, 3> writable_sstable_versions = {
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sstable_version_types::mc,
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sstable_version_types::md,
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sstable_version_types::me,
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};
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constexpr sstable_version_types oldest_writable_sstable_format = sstable_version_types::mc;
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inline auto get_highest_sstable_version() {
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return all_sstable_versions[all_sstable_versions.size() - 1];
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}
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sstable_version_types version_from_string(std::string_view s);
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sstable_format_types format_from_string(std::string_view s);
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extern const std::unordered_map<sstable_version_types, seastar::sstring, seastar::enum_hash<sstable_version_types>> version_string;
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extern const std::unordered_map<sstable_format_types, seastar::sstring, seastar::enum_hash<sstable_format_types>> format_string;
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constexpr inline int operator<=>(sstable_version_types a, sstable_version_types b) {
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auto to_int = [] (sstable_version_types x) {
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return static_cast<std::underlying_type_t<sstable_version_types>>(x);
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};
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return to_int(a) - to_int(b);
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}
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}
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template <>
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struct fmt::formatter<sstables::sstable_version_types> : fmt::formatter<string_view> {
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template <typename FormatContext>
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auto format(const sstables::sstable_version_types& version, FormatContext& ctx) const {
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return fmt::format_to(ctx.out(), "{}", sstables::version_string.at(version));
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}
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};
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template <>
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struct fmt::formatter<sstables::sstable_format_types> : fmt::formatter<string_view> {
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template <typename FormatContext>
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auto format(const sstables::sstable_format_types& format, FormatContext& ctx) const {
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return fmt::format_to(ctx.out(), "{}", sstables::format_string.at(format));
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}
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};
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