// excerpts from http://code.google.com/p/muduo/
//
// Use of this source code is governed by a BSD-style license
// that can be found in the License file.
//
// Author: Shuo Chen (giantchen at gmail dot com)

#ifndef MUDUO_BASE_COUNTDOWNLATCH_H
#define MUDUO_BASE_COUNTDOWNLATCH_H

#include "Mutex.h"
#include "Condition.h"

#include <boost/noncopyable.hpp>

namespace muduo
{

class CountDownLatch : boost::noncopyable
{
 public:

  CountDownLatch(int count);

  void wait();

  void countDown();

  int getCount() const;

 private:
  mutable MutexLock mutex_;
  Condition condition_;
  int count_;
};

}
#endif  // MUDUO_BASE_COUNTDOWNLATCH_H