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e9f9fa17da
Bug: angleproject:6667 Change-Id: I16570a7b51d363dd1c0f35789b985520cb76d488 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3270601 Commit-Queue: Lingfeng Yang <lfy@google.com> Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com>
58 lines
1.1 KiB
C++
58 lines
1.1 KiB
C++
//
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// Copyright 2019 The ANGLE Project Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Timer.cpp: Implementation of a high precision timer class.
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//
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#include "util/Timer.h"
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#include "common/system_utils.h"
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Timer::Timer() : mRunning(false), mStartTime(0), mStopTime(0) {}
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void Timer::start()
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{
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mStartTime = angle::GetCurrentSystemTime();
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mStartCpuTime = angle::GetCurrentProcessCpuTime();
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mRunning = true;
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}
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void Timer::stop()
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{
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mStopTime = angle::GetCurrentSystemTime();
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mStopCpuTime = angle::GetCurrentProcessCpuTime();
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mRunning = false;
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}
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double Timer::getElapsedWallClockTime() const
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{
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double endTime;
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if (mRunning)
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{
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endTime = angle::GetCurrentSystemTime();
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}
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else
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{
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endTime = mStopTime;
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}
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return endTime - mStartTime;
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}
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double Timer::getElapsedCpuTime() const
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{
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double endTime;
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if (mRunning)
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{
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endTime = angle::GetCurrentProcessCpuTime();
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}
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else
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{
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endTime = mStopCpuTime;
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}
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return endTime - mStartCpuTime;
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}
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