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50 lines
1.0 KiB
C++
50 lines
1.0 KiB
C++
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/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*- */
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/* vim: set sw=2 sts=2 ts=8 et tw=80 : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "base/basictypes.h"
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#include "base/message_loop.h"
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#include "TaskThrottler.h"
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namespace mozilla {
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namespace layers {
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TaskThrottler::TaskThrottler()
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: mOutstanding(false)
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, mQueuedTask(nullptr)
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{ }
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void
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TaskThrottler::PostTask(const tracked_objects::Location& aLocation,
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CancelableTask* aTask)
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{
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aTask->SetBirthPlace(aLocation);
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if (mOutstanding) {
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if (mQueuedTask) {
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mQueuedTask->Cancel();
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}
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mQueuedTask = aTask;
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} else {
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aTask->Run();
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delete aTask;
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mOutstanding = true;
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}
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}
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void
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TaskThrottler::TaskComplete()
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{
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if (mQueuedTask) {
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mQueuedTask->Run();
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mQueuedTask = nullptr;
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} else {
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mOutstanding = false;
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}
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}
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}
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}
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