kc3-lang/angle/util/Timer.cpp

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• Author : Shahbaz Youssefi
  Date : 2019-08-23 15:45:34
  Hash : f0dd087e
  Message : Move timer functionality from util/ to common/ The main timer functionality (get absolute time) is moved to common/ for use in ANGLE itself (in upcoming overlay change). util/Timer.h is no longer an abstract class and uses this functionality to implement the timer. Bug: angleproject:3757 Change-Id: I3fe418778d80d1089c9bfe43a9e8098e43236f18 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1769061 Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

• util/Timer.cpp

• //
  // 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::GetCurrentTime();
      mRunning   = true;
  }
  
  void Timer::stop()
  {
      mStopTime = angle::GetCurrentTime();
      mRunning  = false;
  }
  
  double Timer::getElapsedTime() const
  {
      double endTime;
      if (mRunning)
      {
          endTime = angle::GetCurrentTime();
      }
      else
      {
          endTime = mStopTime;
      }
  
      return endTime - mStartTime;
  }