foundationdb/flow/ApiVersion.h.cmake

89 lines
4.4 KiB
CMake

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