// Copyright (c) 2021 PaddlePaddle Authors. 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.

#pragma once

#include <condition_variable>
#include <mutex>
#include <thread>

#include "paddle/fluid/platform/macros.h"

namespace paddle {
namespace distributed {

class TaskLoop;

class TaskLoopThread {
 public:
  TaskLoopThread();
  ~TaskLoopThread();

  TaskLoop* StartLoop();

 private:
  DISABLE_COPY_AND_ASSIGN(TaskLoopThread);

  void Loop();

  bool start_;
  TaskLoop* loop_;
  std::thread thread_;
  std::mutex mutex_;
  std::condition_variable cv_;
};

}  // namespace distributed
}  // namespace paddle
