1 /** 2 * 3 * Copyright 2016-2020 Netflix, Inc. 4 * 5 * Licensed under the BSD+Patent License (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * https://opensource.org/licenses/BSDplusPatent 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef TIMER_H_ 20 #define TIMER_H_ 21 22 #include <chrono> 23 24 class Timer { 25 typedef std::chrono::high_resolution_clock hrclock; 26 27 hrclock::time_point m_start; 28 hrclock::time_point m_stop; 29 public: start()30 void start() { m_start = hrclock::now(); } 31 stop()32 void stop() { m_stop = hrclock::now(); } 33 elapsed()34 double elapsed() 35 { 36 std::chrono::duration<double> secs = m_stop - m_start; 37 return secs.count(); 38 } 39 }; 40 41 #endif // TIMER_H_ 42