aliyun-openapi-cpp-sdk/core/src/Executor.h

/*
* Copyright 1999-2019 Alibaba Cloud All rights reserved.
*
* Licensed 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 CORE_SRC_EXECUTOR_H_
#define CORE_SRC_EXECUTOR_H_

#include <atomic>
#include <condition_variable>
#include <queue>
#include <vector>
#include <thread>
#include <mutex>

namespace AlibabaCloud {
class Runnable;
class Executor {
 public:
  Executor();
  ~Executor();

  static Executor * instance();
  void execute(Runnable* task);
  bool isShutdown()const;
  bool start();
  void shutdown();
  void wakeUp();

 private:
  static Executor *self_;
  std::atomic<bool> shutdown_;
  std::queue<Runnable*> tasksQueue_;
  std::mutex tasksQueueMutex_;
  std::thread thread_;
  std::condition_variable cv_;
  std::mutex cvMutex_;
};
}  // namespace AlibabaCloud

#endif  // CORE_SRC_EXECUTOR_H_