The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/layers/apz/src/TaskThrottler.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,63 @@
     1.4 +/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*- */
     1.5 +/* vim: set sw=2 sts=2 ts=8 et tw=80 : */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "TaskThrottler.h"
    1.11 +
    1.12 +namespace mozilla {
    1.13 +namespace layers {
    1.14 +
    1.15 +TaskThrottler::TaskThrottler(const TimeStamp& aTimeStamp)
    1.16 +  : mOutstanding(false)
    1.17 +  , mQueuedTask(nullptr)
    1.18 +  , mStartTime(aTimeStamp)
    1.19 +  , mMean(1)
    1.20 +{ }
    1.21 +
    1.22 +void
    1.23 +TaskThrottler::PostTask(const tracked_objects::Location& aLocation,
    1.24 +                        CancelableTask* aTask, const TimeStamp& aTimeStamp)
    1.25 +{
    1.26 +  aTask->SetBirthPlace(aLocation);
    1.27 +
    1.28 +  if (mOutstanding) {
    1.29 +    if (mQueuedTask) {
    1.30 +      mQueuedTask->Cancel();
    1.31 +    }
    1.32 +    mQueuedTask = aTask;
    1.33 +  } else {
    1.34 +    mStartTime = aTimeStamp;
    1.35 +    aTask->Run();
    1.36 +    delete aTask;
    1.37 +    mOutstanding = true;
    1.38 +  }
    1.39 +}
    1.40 +
    1.41 +void
    1.42 +TaskThrottler::TaskComplete(const TimeStamp& aTimeStamp)
    1.43 +{
    1.44 +  if (!mOutstanding) {
    1.45 +    return;
    1.46 +  }
    1.47 +
    1.48 +  mMean.insert(aTimeStamp - mStartTime);
    1.49 +
    1.50 +  if (mQueuedTask) {
    1.51 +    mStartTime = aTimeStamp;
    1.52 +    mQueuedTask->Run();
    1.53 +    mQueuedTask = nullptr;
    1.54 +  } else {
    1.55 +    mOutstanding = false;
    1.56 +  }
    1.57 +}
    1.58 +
    1.59 +TimeDuration
    1.60 +TaskThrottler::TimeSinceLastRequest(const TimeStamp& aTimeStamp)
    1.61 +{
    1.62 +  return aTimeStamp - mStartTime;
    1.63 +}
    1.64 +
    1.65 +}
    1.66 +}