mirror of https://gitee.com/bigwinds/arangodb
93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
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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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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Simon Grätzer
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_PREGEL_FEATURE_H
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#define ARANGODB_PREGEL_FEATURE_H 1
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#include <cstdint>
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#include "ApplicationFeatures/ApplicationFeature.h"
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#include "Basics/Common.h"
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#include "Basics/Mutex.h"
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struct TRI_vocbase_t;
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namespace arangodb {
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namespace pregel {
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class Conductor;
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class IWorker;
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class RecoveryManager;
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class PregelFeature final : public application_features::ApplicationFeature {
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public:
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explicit PregelFeature(application_features::ApplicationServer& server);
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~PregelFeature();
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static std::shared_ptr<PregelFeature> instance();
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static size_t availableParallelism();
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static std::pair<Result, uint64_t> startExecution(
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TRI_vocbase_t& vocbase, std::string algorithm,
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std::vector<std::string> const& vertexCollections,
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std::vector<std::string> const& edgeCollections, VPackSlice const& params);
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void start() override final;
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void beginShutdown() override final;
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void stop() override final;
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void unprepare() override final;
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uint64_t createExecutionNumber();
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void addConductor(std::shared_ptr<Conductor>&&, uint64_t executionNumber);
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std::shared_ptr<Conductor> conductor(uint64_t executionNumber);
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void addWorker(std::shared_ptr<IWorker>&&, uint64_t executionNumber);
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std::shared_ptr<IWorker> worker(uint64_t executionNumber);
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void cleanupConductor(uint64_t executionNumber);
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void cleanupWorker(uint64_t executionNumber);
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void cleanupAll();
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// ThreadPool* threadPool() { return _threadPool.get(); }
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RecoveryManager* recoveryManager() {
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if (_recoveryManager) {
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return _recoveryManager.get();
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}
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return nullptr;
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}
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static void handleConductorRequest(std::string const& path, VPackSlice const& body,
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VPackBuilder& outResponse);
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static void handleWorkerRequest(TRI_vocbase_t& vocbase, std::string const& path,
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VPackSlice const& body, VPackBuilder& outBuilder);
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private:
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Mutex _mutex;
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std::unique_ptr<RecoveryManager> _recoveryManager;
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std::unordered_map<uint64_t, std::pair<std::string, std::shared_ptr<Conductor>>> _conductors;
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std::unordered_map<uint64_t, std::pair<std::string, std::shared_ptr<IWorker>>> _workers;
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};
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} // namespace pregel
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} // namespace arangodb
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#endif
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