From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- dom/media/systemservices/MediaTaskUtils.h | 52 +++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 dom/media/systemservices/MediaTaskUtils.h (limited to 'dom/media/systemservices/MediaTaskUtils.h') diff --git a/dom/media/systemservices/MediaTaskUtils.h b/dom/media/systemservices/MediaTaskUtils.h new file mode 100644 index 0000000000..cbe464e015 --- /dev/null +++ b/dom/media/systemservices/MediaTaskUtils.h @@ -0,0 +1,52 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set sw=2 ts=8 et ft=cpp : */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_MediaTaskUtils_h +#define mozilla_MediaTaskUtils_h + +#include "nsThreadUtils.h" + +// The main reason this file is separate from MediaUtils.h +#include "base/task.h" + +namespace mozilla { +namespace media { + +/* media::NewTaskFrom() - Create a Task from a lambda. + * + * Similar to media::NewRunnableFrom() - Create an nsRunnable from a lambda, + * but ignore the return value from the lambda. + * + * Prefer NS_NewRunnableFunction(), which provides a specific name, unless the + * lambda really must have a non-void return value that is to be ignored. + */ + +template +class LambdaTask : public Runnable { + public: + explicit LambdaTask(OnRunType&& aOnRun) + : Runnable("media::LambdaTask"), mOnRun(std::move(aOnRun)) {} + + private: + NS_IMETHOD + Run() override { + mOnRun(); + return NS_OK; + } + OnRunType mOnRun; +}; + +template +already_AddRefed> NewTaskFrom(OnRunType&& aOnRun) { + typedef LambdaTask LambdaType; + RefPtr lambda = new LambdaType(std::forward(aOnRun)); + return lambda.forget(); +} + +} // namespace media +} // namespace mozilla + +#endif // mozilla_MediaTaskUtils_h -- cgit v1.2.3