зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
2.4 KiB
C++
101 строка
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 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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#ifndef mozilla_dom_worklet_WorkletThread_h
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#define mozilla_dom_worklet_WorkletThread_h
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#include "mozilla/Attributes.h"
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#include "mozilla/CondVar.h"
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#include "mozilla/dom/Worklet.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/TimeStamp.h"
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#include "nsThread.h"
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class nsIRunnable;
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namespace mozilla {
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namespace dom {
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class WorkletThread final : public nsThread, public nsIObserver
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIOBSERVER
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static already_AddRefed<WorkletThread>
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Create(const WorkletLoadInfo& aWorkletLoadInfo);
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static WorkletThread*
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Get();
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static bool
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IsOnWorkletThread();
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static void
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AssertIsOnWorkletThread();
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static JSPrincipals*
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GetWorkerPrincipal();
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JSContext*
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GetJSContext() const;
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const WorkletLoadInfo&
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GetWorkletLoadInfo() const;
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nsresult
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DispatchRunnable(already_AddRefed<nsIRunnable> aRunnable);
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void
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Terminate();
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DOMHighResTimeStamp
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TimeStampToDOMHighRes(const TimeStamp& aTimeStamp) const
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{
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MOZ_ASSERT(!aTimeStamp.IsNull());
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TimeDuration duration = aTimeStamp - mCreationTimeStamp;
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return duration.ToMilliseconds();
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}
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private:
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explicit WorkletThread(const WorkletLoadInfo& aWorkletLoadInfo);
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~WorkletThread();
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void
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RunEventLoop(JSRuntime* aParentRuntime);
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class PrimaryRunnable;
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void
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TerminateInternal();
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class TerminateRunnable;
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// This should only be called by consumers that have an
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// nsIEventTarget/nsIThread pointer.
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NS_IMETHOD
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Dispatch(already_AddRefed<nsIRunnable> aRunnable, uint32_t aFlags) override;
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NS_IMETHOD
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DispatchFromScript(nsIRunnable* aRunnable, uint32_t aFlags) override;
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NS_IMETHOD
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DelayedDispatch(already_AddRefed<nsIRunnable>, uint32_t) override;
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const WorkletLoadInfo mWorkletLoadInfo;
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TimeStamp mCreationTimeStamp;
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// Touched only on the worklet thread. This is a raw pointer because it's set
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// and nullified by RunEventLoop().
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JSContext* mJSContext;
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bool mIsTerminating; // main thread
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_worklet_WorkletThread_h
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