зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
1.6 KiB
C++
60 строки
1.6 KiB
C++
/* -*- 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"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
namespace workers {
|
|
class WorkerPrivate;
|
|
}
|
|
|
|
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;
|
|
workers::WorkerPrivate* mWorkerPrivate;
|
|
const Behavior mBehavior;
|
|
|
|
~WorkerEventTarget() = default;
|
|
|
|
public:
|
|
WorkerEventTarget(workers::WorkerPrivate* aWorkerPrivate,
|
|
Behavior aBehavior);
|
|
|
|
void
|
|
ForgetWorkerPrivate(workers::WorkerPrivate* aWorkerPrivate);
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIEVENTTARGET
|
|
NS_DECL_NSISERIALEVENTTARGET
|
|
};
|
|
|
|
} // dom namespace
|
|
} // mozilla namespace
|
|
|
|
#endif // mozilla_dom_WorkerEventTarget_h
|