d4615f4293
Signed-off-by: Benny Halevy <bhalevy@scylladb.com> Message-Id: <20200707061715.578604-1-bhalevy@scylladb.com>
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/*
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* Copyright (C) 2017 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdexcept>
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#include <type_traits>
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#include <seastar/core/sstring.hh>
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namespace sstables {
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enum class sstable_version_types { ka, la, mc };
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enum class sstable_format_types { big };
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inline std::array<sstable_version_types, 3> 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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};
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inline sstable_version_types from_string(const seastar::sstring& format) {
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if (format == "ka") {
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return sstable_version_types::ka;
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}
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if (format == "la") {
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return sstable_version_types::la;
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}
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if (format == "mc") {
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return sstable_version_types::mc;
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}
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throw std::invalid_argument("Wrong sstable format name: " + format);
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}
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inline seastar::sstring to_string(sstable_version_types format) {
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switch (format) {
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case sstable_version_types::ka: return "ka";
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case sstable_version_types::la: return "la";
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case sstable_version_types::mc: return "mc";
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}
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throw std::runtime_error("Wrong sstable format");
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}
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inline bool is_latest_supported(sstable_version_types format) {
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return format == sstable_version_types::mc;
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}
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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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