76 lines
3.3 KiB
C++
76 lines
3.3 KiB
C++
/*
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* ConfigBroadcaster.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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#pragma once
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#include "fdbclient/CoordinationInterface.h"
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#include "fdbclient/JsonBuilder.h"
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#include "fdbclient/PImpl.h"
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#include "fdbserver/CoordinationInterface.h"
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#include "fdbserver/ConfigBroadcastInterface.h"
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#include "fdbserver/ConfigFollowerInterface.h"
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#include "fdbserver/WorkerInterface.actor.h"
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#include "flow/flow.h"
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#include <memory>
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/*
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* The configuration broadcaster runs on the cluster controller. The broadcaster listens uses
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* an IConfigConsumer instantiation to consume updates from the configuration database, and broadcasts
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* these updates to all workers' local configurations
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*/
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class ConfigBroadcaster {
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PImpl<class ConfigBroadcasterImpl> impl;
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public:
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explicit ConfigBroadcaster(ServerCoordinators const&, ConfigDBType);
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ConfigBroadcaster(ConfigBroadcaster&&);
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ConfigBroadcaster& operator=(ConfigBroadcaster&&);
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~ConfigBroadcaster();
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Future<Void> registerNode(WorkerInterface const& w,
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Version lastSeenVersion,
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ConfigClassSet const& configClassSet,
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Future<Void> watcher,
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ConfigBroadcastInterface const& worker);
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void applyChanges(Standalone<VectorRef<VersionedConfigMutationRef>> const& changes,
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Version mostRecentVersion,
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Standalone<VectorRef<VersionedConfigCommitAnnotationRef>> const& annotations,
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std::vector<ConfigFollowerInterface> const& readReplicas);
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void applySnapshotAndChanges(std::map<ConfigKey, KnobValue> const& snapshot,
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Version snapshotVersion,
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Standalone<VectorRef<VersionedConfigMutationRef>> const& changes,
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Version changesVersion,
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Standalone<VectorRef<VersionedConfigCommitAnnotationRef>> const& annotations,
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std::vector<ConfigFollowerInterface> const& readReplicas);
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void applySnapshotAndChanges(std::map<ConfigKey, KnobValue>&& snapshot,
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Version snapshotVersion,
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Standalone<VectorRef<VersionedConfigMutationRef>> const& changes,
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Version changesVersion,
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Standalone<VectorRef<VersionedConfigCommitAnnotationRef>> const& annotations,
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std::vector<ConfigFollowerInterface> const& readReplicas);
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Future<Void> getError() const;
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UID getID() const;
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JsonBuilderObject getStatus() const;
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void compact(Version compactionVersion);
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public: // Testing
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explicit ConfigBroadcaster(ConfigFollowerInterface const&);
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Future<Void> getClientFailure(UID clientUID) const;
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};
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