55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/* Copyright 2015-2017 Philippe Tillet
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef ISAAC_TOOLS_CPP_TIMER_HPP
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#define ISAAC_TOOLS_CPP_TIMER_HPP
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#include <chrono>
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namespace isaac
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{
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namespace tools
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{
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class Timer
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{
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typedef std::chrono::high_resolution_clock high_resolution_clock;
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typedef std::chrono::nanoseconds nanoseconds;
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public:
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explicit Timer(bool run = false)
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{ if (run) start(); }
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void start()
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{ _start = high_resolution_clock::now(); }
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nanoseconds get() const
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{ return std::chrono::duration_cast<nanoseconds>(high_resolution_clock::now() - _start); }
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private:
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high_resolution_clock::time_point _start;
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};
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}
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}
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#endif
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