| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 QUICKSTEP_CLI_DISTRIBUTED_EXECUTOR_HPP_ |
| #define QUICKSTEP_CLI_DISTRIBUTED_EXECUTOR_HPP_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "cli/distributed/Role.hpp" |
| #include "query_execution/QueryExecutionTypedefs.hpp" |
| #include "query_execution/Shiftboss.hpp" |
| #include "query_execution/Worker.hpp" |
| #include "query_execution/WorkerDirectory.hpp" |
| #include "storage/DataExchangerAsync.hpp" |
| #include "storage/StorageManager.hpp" |
| #include "utility/Macros.hpp" |
| |
| #include "tmb/id_typedefs.h" |
| |
| namespace quickstep { |
| |
| /** \addtogroup CliDistributed |
| * @{ |
| */ |
| |
| /** |
| * @brief A class for the Executor component in the distributed version. |
| **/ |
| class Executor final : public Role { |
| public: |
| /** |
| * @brief Constructor. |
| **/ |
| Executor() = default; |
| |
| ~Executor() override { |
| for (const auto &worker : workers_) { |
| worker->join(); |
| } |
| shiftboss_->join(); |
| |
| data_exchanger_.shutdown(); |
| storage_manager_.reset(); |
| data_exchanger_.join(); |
| } |
| |
| void init() override; |
| |
| void run() override {} |
| |
| private: |
| // Used between Shiftboss and Workers. |
| MessageBusImpl bus_local_; |
| |
| tmb::client_id executor_client_id_; |
| |
| std::vector<std::unique_ptr<Worker>> workers_; |
| std::unique_ptr<WorkerDirectory> worker_directory_; |
| DataExchangerAsync data_exchanger_; |
| std::unique_ptr<StorageManager> storage_manager_; |
| std::unique_ptr<Shiftboss> shiftboss_; |
| |
| DISALLOW_COPY_AND_ASSIGN(Executor); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_CLI_DISTRIBUTED_EXECUTOR_HPP_ |