58 lines
1.1 KiB
C++
58 lines
1.1 KiB
C++
//
|
|
// Copyright 2019 The ANGLE Project Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
//
|
|
// Timer.cpp: Implementation of a high precision timer class.
|
|
//
|
|
|
|
#include "util/Timer.h"
|
|
|
|
#include "common/system_utils.h"
|
|
|
|
Timer::Timer() : mRunning(false), mStartTime(0), mStopTime(0) {}
|
|
|
|
void Timer::start()
|
|
{
|
|
mStartTime = angle::GetCurrentSystemTime();
|
|
mStartCpuTime = angle::GetCurrentProcessCpuTime();
|
|
mRunning = true;
|
|
}
|
|
|
|
void Timer::stop()
|
|
{
|
|
mStopTime = angle::GetCurrentSystemTime();
|
|
mStopCpuTime = angle::GetCurrentProcessCpuTime();
|
|
mRunning = false;
|
|
}
|
|
|
|
double Timer::getElapsedWallClockTime() const
|
|
{
|
|
double endTime;
|
|
if (mRunning)
|
|
{
|
|
endTime = angle::GetCurrentSystemTime();
|
|
}
|
|
else
|
|
{
|
|
endTime = mStopTime;
|
|
}
|
|
|
|
return endTime - mStartTime;
|
|
}
|
|
|
|
double Timer::getElapsedCpuTime() const
|
|
{
|
|
double endTime;
|
|
if (mRunning)
|
|
{
|
|
endTime = angle::GetCurrentProcessCpuTime();
|
|
}
|
|
else
|
|
{
|
|
endTime = mStopCpuTime;
|
|
}
|
|
|
|
return endTime - mStartCpuTime;
|
|
}
|