1 /* 2 * Copyright (C) 2005 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_STOPWATCH_H 18 #define ANDROID_STOPWATCH_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <utils/Timers.h> 24 25 // --------------------------------------------------------------------------- 26 27 namespace android { 28 29 class StopWatch 30 { 31 public: 32 StopWatch(const char* name, int clock = SYSTEM_TIME_MONOTONIC); 33 ~StopWatch(); 34 35 const char* name() const; 36 nsecs_t lap(); 37 nsecs_t elapsedTime() const; 38 39 void reset(); 40 41 private: 42 const char* mName; 43 int mClock; 44 45 struct lap_t { 46 nsecs_t soFar; 47 nsecs_t thisLap; 48 }; 49 50 nsecs_t mStartTime; 51 lap_t mLaps[8]; 52 int mNumLaps; 53 }; 54 55 } // namespace android 56 57 // --------------------------------------------------------------------------- 58 59 #endif // ANDROID_STOPWATCH_H 60