| // 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 __MASTER_CONTENDER_STANDALONE_HPP__ |
| #define __MASTER_CONTENDER_STANDALONE_HPP__ |
| |
| #include <mesos/mesos.hpp> |
| |
| #include <mesos/master/contender.hpp> |
| |
| #include <process/future.hpp> |
| |
| #include <stout/nothing.hpp> |
| |
| namespace mesos { |
| namespace master { |
| namespace contender { |
| |
| // A basic implementation which assumes only one master is |
| // contending. |
| class StandaloneMasterContender : public MasterContender |
| { |
| public: |
| StandaloneMasterContender() |
| : initialized(false), |
| promise(nullptr) {} |
| |
| virtual ~StandaloneMasterContender(); |
| |
| // MasterContender implementation. |
| virtual void initialize(const MasterInfo& masterInfo); |
| |
| // In this basic implementation the outer Future directly returns |
| // and inner Future stays pending because there is only one |
| // contender in the contest. |
| virtual process::Future<process::Future<Nothing>> contend(); |
| |
| private: |
| bool initialized; |
| process::Promise<Nothing>* promise; |
| }; |
| |
| } // namespace contender { |
| } // namespace master { |
| } // namespace mesos { |
| |
| #endif // __MASTER_CONTENDER_STANDALONE_HPP__ |