foundationdb/fdbserver/IConfigConsumer.h

51 lines
2.1 KiB
C++

/*
* IConfigConsumer.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.
*/
#pragma once
#include "fdbclient/CoordinationInterface.h"
#include "fdbserver/ConfigBroadcaster.h"
#include "fdbserver/CoordinationInterface.h"
#include "fdbserver/ConfigFollowerInterface.h"
#include "flow/flow.h"
#include <memory>
/*
* An IConfigConsumer instantiation is used by the ConfigBroadcaster to consume
* updates from the configuration database nodes. A consumer sends mutations to a broadcaster
* once they are confirmed to be committed.
*/
class IConfigConsumer {
public:
virtual ~IConfigConsumer() = default;
virtual Future<Void> consume(ConfigBroadcaster& broadcaster) = 0;
virtual UID getID() const = 0;
static std::unique_ptr<IConfigConsumer> createTestSimple(ConfigFollowerInterface const& cfi,
double pollingInterval,
Optional<double> compactionInterval);
static std::unique_ptr<IConfigConsumer> createSimple(ServerCoordinators const& coordinators,
double pollingInterval,
Optional<double> compactionInterval);
static std::unique_ptr<IConfigConsumer> createPaxos(ServerCoordinators const& coordinators,
double pollingInterval,
Optional<double> compactionInterval);
};