79 lines
3.7 KiB
CMake
79 lines
3.7 KiB
CMake
/*
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* ApiVersion.h
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FLOW_CODE_API_VERSION_H
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#define FLOW_CODE_API_VERSION_H
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#pragma once
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#include "flow/Trace.h"
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#include <cstdint>
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constexpr int noBackwardsCompatibility = 13;
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// The first check second expression version doesn't need to change because it's just for earlier API versions.
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#define API_VERSION_FEATURE(v, x) \
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static_assert(v <= @FDB_AV_LATEST_VERSION@, "Feature API version too large"); \
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struct x { \
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static constexpr uint64_t apiVersion = v; \
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}; \
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constexpr bool has##x() const { return this->version() >= x ::apiVersion; } \
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static constexpr ApiVersion with##x() { return ApiVersion(x ::apiVersion); }
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class ApiVersion {
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int _version;
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public:
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// Statics.
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constexpr static int LATEST_VERSION = @FDB_AV_LATEST_VERSION@;
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constexpr explicit ApiVersion(int version) : _version(version) {}
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constexpr ApiVersion() : _version(0) {}
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constexpr bool isValid() const {
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return version() > noBackwardsCompatibility && version() <= LATEST_VERSION;
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}
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constexpr int version() const { return _version; }
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// comparison operators
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constexpr bool operator==(const ApiVersion other) const { return version() == other.version(); }
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constexpr bool operator!=(const ApiVersion other) const { return version() != other.version(); }
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constexpr bool operator<=(const ApiVersion other) const { return version() <= other.version(); }
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constexpr bool operator>=(const ApiVersion other) const { return version() >= other.version(); }
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constexpr bool operator<(const ApiVersion other) const { return version() < other.version(); }
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constexpr bool operator>(const ApiVersion other) const { return version() > other.version(); }
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public: // introduced features
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API_VERSION_FEATURE(@FDB_AV_SNAPSHOT_RYW@, SnapshotRYW);
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API_VERSION_FEATURE(@FDB_AV_INLINE_UPDATE_DATABASE@, InlineUpdateDatabase);
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API_VERSION_FEATURE(@FDB_AV_PERSISTENT_OPTIONS@, PersistentOptions);
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API_VERSION_FEATURE(@FDB_AV_TRACE_FILE_IDENTIFIER@, TraceFileIdentifier);
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API_VERSION_FEATURE(@FDB_AV_CLUSTER_SHARED_STATE_MAP@, ClusterSharedStateMap);
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API_VERSION_FEATURE(@FDB_AV_BLOB_RANGE_API@, BlobRangeApi);
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API_VERSION_FEATURE(@FDB_AV_CREATE_DB_FROM_CONN_STRING@, CreateDBFromConnString);
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API_VERSION_FEATURE(@FDB_AV_FUTURE_GET_BOOL@, FutureGetBool);
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API_VERSION_FEATURE(@FDB_AV_FUTURE_PROTOCOL_VERSION_API@, FutureProtocolVersionApi);
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API_VERSION_FEATURE(@FDB_AV_TENANT_BLOB_RANGE_API@, TenantBlobRangeApi);
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API_VERSION_FEATURE(@FDB_AV_GET_TOTAL_COST@, GetTotalCost);
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API_VERSION_FEATURE(@FDB_AV_FAIL_ON_EXTERNAL_CLIENT_ERRORS@, FailOnExternalClientErrors);
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};
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#endif // FLOW_CODE_API_VERSION_H
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