faux-folly/folly/futures/ThreadedExecutor.h

/*
 * Copyright 2015 Facebook, Inc.
 *
 * 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 <list>
#include <mutex>
#include <thread>
#include <folly/Executor.h>

namespace folly { namespace futures {

/**
 *  Runs functions each in its own thread.
 *
 *  Kind of simple. Suitable for a few types of strange cases.
 */
class ThreadedExecutor : public Executor {
public:
  ~ThreadedExecutor();
  void add(Func f) override;
private:
  std::mutex mutex_;
  std::list<std::thread> threads_;
  bool destructing_ = false;
};

}}