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58 lines
2.1 KiB
58 lines
2.1 KiB
/**
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Copyright (c) 2016 Mariano Gonzalez
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef spp_timer_h_guard
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#define spp_timer_h_guard
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#include <chrono>
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namespace spp
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{
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template<typename time_unit = std::milli>
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class Timer
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{
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public:
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Timer() { reset(); }
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void reset() { _start = _snap = clock::now(); }
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void snap() { _snap = clock::now(); }
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float get_total() const { return get_diff<float>(_start, clock::now()); }
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float get_delta() const { return get_diff<float>(_snap, clock::now()); }
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private:
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using clock = std::chrono::high_resolution_clock;
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using point = std::chrono::time_point<clock>;
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template<typename T>
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static T get_diff(const point& start, const point& end)
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{
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using duration_t = std::chrono::duration<T, time_unit>;
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return std::chrono::duration_cast<duration_t>(end - start).count();
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}
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point _start;
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point _snap;
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};
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}
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#endif // spp_timer_h_guard
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