72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
/*
|
|
* ClusterConnectionMemoryRecord.h
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2021 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.
|
|
*/
|
|
|
|
#pragma once
|
|
#ifndef FDBCLIENT_CLUSTERCONNECTIONMEMORYRECORD_H
|
|
#define FDBCLIENT_CLUSTERCONNECTIONMEMORYRECORD_H
|
|
|
|
#include "fdbclient/CoordinationInterface.h"
|
|
|
|
// An implementation of IClusterConnectionRecord that is stored in memory only and not persisted.
|
|
class ClusterConnectionMemoryRecord : public IClusterConnectionRecord,
|
|
ReferenceCounted<ClusterConnectionMemoryRecord>,
|
|
NonCopyable {
|
|
public:
|
|
// Creates a cluster file with a given connection string.
|
|
explicit ClusterConnectionMemoryRecord(ClusterConnectionString const& contents)
|
|
: IClusterConnectionRecord(ConnectionStringNeedsPersisted::False), id(deterministicRandom()->randomUniqueID()) {
|
|
cs = contents;
|
|
}
|
|
|
|
// Sets the connections string held by this object.
|
|
Future<Void> setAndPersistConnectionString(ClusterConnectionString const&) override;
|
|
|
|
// Returns the connection string currently held in this object (there is no persistent storage).
|
|
Future<ClusterConnectionString> getStoredConnectionString() override;
|
|
|
|
// Because the memory record is not persisted, it is always up to date and this returns true. The connection string
|
|
// is returned via the reference parameter connectionString.
|
|
Future<bool> upToDate(ClusterConnectionString& fileConnectionString) override;
|
|
|
|
// Returns a location string for the memory record that includes its ID.
|
|
std::string getLocation() const override;
|
|
|
|
// Returns a copy of this object with a modified connection string.
|
|
Reference<IClusterConnectionRecord> makeIntermediateRecord(
|
|
ClusterConnectionString const& connectionString) const override;
|
|
|
|
// Returns a string representation of this cluster connection record. This will include the type and id of the
|
|
// record.
|
|
std::string toString() const override;
|
|
|
|
void addref() override { ReferenceCounted<ClusterConnectionMemoryRecord>::addref(); }
|
|
void delref() override { ReferenceCounted<ClusterConnectionMemoryRecord>::delref(); }
|
|
|
|
protected:
|
|
// This is a no-op for memory records. Returns true to indicate success.
|
|
Future<bool> persist() override;
|
|
|
|
private:
|
|
// A unique ID for the record
|
|
UID id;
|
|
};
|
|
|
|
#endif
|