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86 lines
2.0 KiB
86 lines
2.0 KiB
/* |
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* Copyright (C) 2005 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#define LOG_TAG "StopWatch" |
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#include <utils/StopWatch.h> |
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/* for PRId64 */ |
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#ifndef __STDC_FORMAT_MACROS |
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#define __STDC_FORMAT_MACROS 1 |
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#endif |
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#include <inttypes.h> |
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#include <utils/Log.h> |
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/*****************************************************************************/ |
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namespace android { |
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StopWatch::StopWatch(const char *name, int clock, uint32_t flags) |
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: mName(name), mClock(clock), mFlags(flags) |
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{ |
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reset(); |
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} |
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StopWatch::~StopWatch() |
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{ |
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nsecs_t elapsed = elapsedTime(); |
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const int n = mNumLaps; |
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ALOGD("StopWatch %s (us): %" PRId64 " ", mName, ns2us(elapsed)); |
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for (int i=0 ; i<n ; i++) { |
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const nsecs_t soFar = mLaps[i].soFar; |
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const nsecs_t thisLap = mLaps[i].thisLap; |
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ALOGD(" [%d: %" PRId64 ", %" PRId64, i, ns2us(soFar), ns2us(thisLap)); |
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} |
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} |
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const char* StopWatch::name() const |
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{ |
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return mName; |
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} |
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nsecs_t StopWatch::lap() |
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{ |
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nsecs_t elapsed = elapsedTime(); |
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if (mNumLaps >= 8) { |
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elapsed = 0; |
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} else { |
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const int n = mNumLaps; |
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mLaps[n].soFar = elapsed; |
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mLaps[n].thisLap = n ? (elapsed - mLaps[n-1].soFar) : elapsed; |
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mNumLaps = n+1; |
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} |
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return elapsed; |
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} |
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nsecs_t StopWatch::elapsedTime() const |
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{ |
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return systemTime(mClock) - mStartTime; |
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} |
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void StopWatch::reset() |
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{ |
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mNumLaps = 0; |
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mStartTime = systemTime(mClock); |
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} |
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/*****************************************************************************/ |
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}; // namespace android |
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