| /** |
| * 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_STORAGE_DATA_EXCHANGER_ASYNC_HPP_ |
| #define QUICKSTEP_STORAGE_DATA_EXCHANGER_ASYNC_HPP_ |
| |
| #include <grpc++/grpc++.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "storage/DataExchange.grpc.pb.h" |
| #include "threading/Thread.hpp" |
| #include "utility/Macros.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| |
| class StorageManager; |
| |
| /** |
| * @brief A class which exchanges data from a StorageManager to its peer. |
| **/ |
| class DataExchangerAsync final : public Thread { |
| public: |
| /** |
| * @brief Constructor. |
| **/ |
| DataExchangerAsync(); |
| |
| ~DataExchangerAsync() override {} |
| |
| /** |
| * @brief Set the local StorageManager. |
| * |
| * @param storage_manager The StorageManager to use. |
| **/ |
| void set_storage_manager(StorageManager *storage_manager) { |
| storage_manager_ = storage_manager; |
| } |
| |
| /** |
| * @brief Return its network address for peers to connect. |
| * |
| * @return Its network address. |
| **/ |
| const std::string& network_address() const { |
| DCHECK(!server_address_.empty()); |
| return server_address_; |
| } |
| |
| /** |
| * @brief Shutdown itself. |
| **/ |
| void shutdown() { |
| server_->Shutdown(); |
| // Always shutdown the completion queue after the server. |
| queue_->Shutdown(); |
| } |
| |
| protected: |
| void run() override; |
| |
| private: |
| DataExchange::AsyncService service_; |
| |
| int port_ = -1; |
| // Format IP:port, i.e., "0.0.0.0:0". |
| std::string server_address_; |
| |
| std::unique_ptr<grpc::ServerCompletionQueue> queue_; |
| std::unique_ptr<grpc::Server> server_; |
| |
| StorageManager *storage_manager_ = nullptr; |
| |
| DISALLOW_COPY_AND_ASSIGN(DataExchangerAsync); |
| }; |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_STORAGE_DATA_EXCHANGER_ASYNC_HPP_ |