gecko-dev/dom/ipc/NuwaParent.h

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2.0 KiB
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/* -*- 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_NuwaParent_h
#define mozilla_dom_NuwaParent_h
#include "base/message_loop.h"
#include "mozilla/dom/PNuwaParent.h"
#include "mozilla/Monitor.h"
#include "mozilla/RefPtr.h"
namespace mozilla {
namespace dom {
class ContentParent;
class NuwaParent : public mozilla::dom::PNuwaParent
{
public:
explicit NuwaParent();
// Called on the main thread.
bool ForkNewProcess(uint32_t& aPid,
UniquePtr<nsTArray<ProtocolFdMapping>>&& aFds,
bool aBlocking);
// Called on the background thread.
bool ActorConstructed();
// Both the worker thread and the main thread hold a ref to this.
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(NuwaParent)
// Functions to be invoked by the manager of this actor to alloc/dealloc the
// actor.
static NuwaParent* Alloc();
static bool ActorConstructed(mozilla::dom::PNuwaParent *aActor);
static bool Dealloc(mozilla::dom::PNuwaParent *aActor);
protected:
virtual ~NuwaParent();
virtual bool RecvNotifyReady() override;
virtual bool RecvAddNewProcess(const uint32_t& aPid,
nsTArray<ProtocolFdMapping>&& aFds) override;
virtual mozilla::ipc::IProtocol*
CloneProtocol(Channel* aChannel,
ProtocolCloneContext* aCtx) override;
virtual void ActorDestroy(ActorDestroyReason aWhy) override;
private:
void AssertIsOnWorkerThread();
bool mBlocked;
mozilla::Monitor mMonitor;
NuwaParent* mClonedActor;
nsCOMPtr<nsIThread> mWorkerThread;
uint32_t mNewProcessPid;
UniquePtr<nsTArray<ProtocolFdMapping>> mNewProcessFds;
// The mutual reference will be broken on the main thread.
RefPtr<ContentParent> mContentParent;
};
} // namespace dom
} // namespace mozilla
#endif