nana/include/nana/system/timepiece.hpp
2018-08-11 09:12:57 +08:00

41 lines
923 B
C++

/*
* Timepiece Implementation
* Copyright(C) 2003-2018 Jinhao(cnjinhao@hotmail.com)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*
* @file: nana/system/timepiece.hpp
* @description: a time counter
*/
#ifndef NANA_SYSTEM_TIMEPIECE_HPP
#define NANA_SYSTEM_TIMEPIECE_HPP
#include "../c++defines.hpp"
namespace nana
{
namespace system
{ /// used for measuring and signaling the end of time intervals.
class timepiece
{
public:
timepiece();
timepiece(const timepiece&);
~timepiece();
timepiece & operator=(const timepiece &);
void start() noexcept; ///< Set the begin time.
double calc() const noexcept; ///< Get the intervals from the begin time.
private:
struct impl_t;
impl_t * impl_;
};
}//end namespace system
}//end namespace nana
#endif