/* * Copyright (C) 2005 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #define LOG_TAG "StopWatch" #include <string.h> #include <stdlib.h> #include <stdio.h> #include <utils/Log.h> #include <utils/Errors.h> #include <utils/StopWatch.h> /*****************************************************************************/ namespace android { StopWatch::StopWatch(const char *name, int clock, uint32_t flags) : mName(name), mClock(clock), mFlags(flags) { reset(); } StopWatch::~StopWatch() { nsecs_t elapsed = elapsedTime(); const int n = mNumLaps; LOGD("StopWatch %s (us): %lld ", mName, ns2us(elapsed)); for (int i=0 ; i<n ; i++) { const nsecs_t soFar = mLaps[i].soFar; const nsecs_t thisLap = mLaps[i].thisLap; LOGD(" [%d: %lld, %lld]", i, ns2us(soFar), ns2us(thisLap)); } } const char* StopWatch::name() const { return mName; } nsecs_t StopWatch::lap() { nsecs_t elapsed = elapsedTime(); if (mNumLaps >= 8) { elapsed = 0; } else { const int n = mNumLaps; mLaps[n].soFar = elapsed; mLaps[n].thisLap = n ? (elapsed - mLaps[n-1].soFar) : elapsed; mNumLaps = n+1; } return elapsed; } nsecs_t StopWatch::elapsedTime() const { return systemTime(mClock) - mStartTime; } void StopWatch::reset() { mNumLaps = 0; mStartTime = systemTime(mClock); } /*****************************************************************************/ }; // namespace android