From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- dom/workers/WorkerEventTarget.h | 48 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 dom/workers/WorkerEventTarget.h (limited to 'dom/workers/WorkerEventTarget.h') diff --git a/dom/workers/WorkerEventTarget.h b/dom/workers/WorkerEventTarget.h new file mode 100644 index 0000000000..dd9cb61748 --- /dev/null +++ b/dom/workers/WorkerEventTarget.h @@ -0,0 +1,48 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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_dom_WorkerEventTarget_h +#define mozilla_dom_WorkerEventTarget_h + +#include "nsISerialEventTarget.h" +#include "mozilla/Mutex.h" +#include "mozilla/dom/WorkerPrivate.h" + +namespace mozilla::dom { + +class WorkerEventTarget final : public nsISerialEventTarget { + public: + // The WorkerEventTarget supports different dispatch behaviors: + // + // * Hybrid targets will attempt to dispatch as a normal runnable, + // but fallback to a control runnable if that fails. This is + // often necessary for code that wants normal dispatch order, but + // also needs to execute while the worker is shutting down (possibly + // with a holder in place.) + // + // * ControlOnly targets will simply dispatch a control runnable. + enum class Behavior : uint8_t { Hybrid, ControlOnly }; + + private: + mozilla::Mutex mMutex; + CheckedUnsafePtr mWorkerPrivate MOZ_GUARDED_BY(mMutex); + const Behavior mBehavior MOZ_GUARDED_BY(mMutex); + + ~WorkerEventTarget() = default; + + public: + WorkerEventTarget(WorkerPrivate* aWorkerPrivate, Behavior aBehavior); + + void ForgetWorkerPrivate(WorkerPrivate* aWorkerPrivate); + + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSIEVENTTARGET + NS_DECL_NSISERIALEVENTTARGET +}; + +} // namespace mozilla::dom + +#endif // mozilla_dom_WorkerEventTarget_h -- cgit v1.2.3