50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_MediaTaskUtils_h
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#define mozilla_MediaTaskUtils_h
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#include "nsThreadUtils.h"
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// The main reason this file is separate from MediaUtils.h
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#include "base/task.h"
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namespace mozilla {
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namespace media {
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/* media::NewTaskFrom() - Create a Task from a lambda.
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*
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* Similar to media::NewRunnableFrom() - Create an nsRunnable from a lambda.
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*/
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template<typename OnRunType>
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class LambdaTask : public Runnable
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{
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public:
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explicit LambdaTask(OnRunType&& aOnRun) : mOnRun(Move(aOnRun)) {}
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private:
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NS_IMETHOD
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Run() override
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{
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mOnRun();
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return NS_OK;
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}
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OnRunType mOnRun;
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};
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template<typename OnRunType>
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already_AddRefed<LambdaTask<OnRunType>>
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NewTaskFrom(OnRunType&& aOnRun)
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{
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typedef LambdaTask<OnRunType> LambdaType;
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RefPtr<LambdaType> lambda = new LambdaType(Forward<OnRunType>(aOnRun));
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return lambda.forget();
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}
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} // namespace media
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} // namespace mozilla
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#endif // mozilla_MediaTaskUtils_h
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