85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
|
/*
|
||
|
|
* 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
|
||
|
|
|