| // 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. |
| |
| #pragma once |
| |
| #include <string> |
| |
| #include "kudu/gutil/gscoped_ptr.h" |
| #include "kudu/gutil/macros.h" |
| #include "kudu/server/server_base.h" |
| #include "kudu/util/threadpool.h" |
| |
| namespace kudu { |
| class Status; |
| |
| namespace server { |
| struct ServerBaseOptions; |
| } |
| |
| namespace kserver { |
| |
| // Kudu server instance. |
| // |
| // While ServerBase is a generic C++ "server" class, KuduServer includes |
| // functionality that is specific to Kudu (i.e. pertains to the hosting of |
| // tablets, to Raft consensus, etc.). |
| class KuduServer : public server::ServerBase { |
| public: |
| // Constructs a new KuduServer instance and performs all no-fail member |
| // initializations. |
| KuduServer(std::string name, |
| const server::ServerBaseOptions& options, |
| const std::string& metric_namespace); |
| |
| // Finalizes the initialization of a KuduServer by performing any member |
| // initializations that may fail. |
| virtual Status Init() override; |
| |
| // Exposes an initialized KuduServer to the network or filesystem. |
| virtual Status Start() override; |
| |
| // Shuts down a KuduServer instance. |
| virtual void Shutdown() override; |
| |
| ThreadPool* tablet_prepare_pool() const { return tablet_prepare_pool_.get(); } |
| ThreadPool* tablet_apply_pool() const { return tablet_apply_pool_.get(); } |
| ThreadPool* raft_pool() const { return raft_pool_.get(); } |
| |
| private: |
| |
| // Thread pool for preparing transactions, shared between all tablets. |
| gscoped_ptr<ThreadPool> tablet_prepare_pool_; |
| |
| // Thread pool for applying transactions, shared between all tablets. |
| gscoped_ptr<ThreadPool> tablet_apply_pool_; |
| |
| // Thread pool for Raft-related operations, shared between all tablets. |
| gscoped_ptr<ThreadPool> raft_pool_; |
| |
| DISALLOW_COPY_AND_ASSIGN(KuduServer); |
| }; |
| |
| } // namespace kserver |
| } // namespace kudu |