зеркало из https://github.com/mozilla/gecko-dev.git
137 строки
3.8 KiB
C++
137 строки
3.8 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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#include "ServiceWorkerProxy.h"
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#include "mozilla/ipc/BackgroundParent.h"
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#include "ServiceWorkerInfo.h"
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namespace mozilla {
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namespace dom {
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using mozilla::ipc::AssertIsOnBackgroundThread;
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ServiceWorkerProxy::~ServiceWorkerProxy()
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{
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// Any thread
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MOZ_DIAGNOSTIC_ASSERT(!mActor);
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MOZ_DIAGNOSTIC_ASSERT(!mInfo);
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}
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void
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ServiceWorkerProxy::MaybeShutdownOnBGThread()
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{
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AssertIsOnBackgroundThread();
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if (!mActor) {
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return;
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}
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mActor->MaybeSendDelete();
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}
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void
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ServiceWorkerProxy::InitOnMainThread()
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{
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AssertIsOnMainThread();
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auto scopeExit = MakeScopeExit([&] {
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MaybeShutdownOnMainThread();
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});
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RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
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NS_ENSURE_TRUE_VOID(swm);
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RefPtr<ServiceWorkerRegistrationInfo> reg =
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swm->GetRegistration(mDescriptor.PrincipalInfo(), mDescriptor.Scope());
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NS_ENSURE_TRUE_VOID(reg);
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RefPtr<ServiceWorkerInfo> info = reg->GetByDescriptor(mDescriptor);
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NS_ENSURE_TRUE_VOID(info);
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scopeExit.release();
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mInfo = new nsMainThreadPtrHolder<ServiceWorkerInfo>("ServiceWorkerProxy::mInfo",
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info);
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}
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void
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ServiceWorkerProxy::MaybeShutdownOnMainThread()
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{
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AssertIsOnMainThread();
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nsCOMPtr<nsIRunnable> r =
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NewRunnableMethod(__func__, this,
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&ServiceWorkerProxy::MaybeShutdownOnBGThread);
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MOZ_ALWAYS_SUCCEEDS(mEventTarget->Dispatch(r.forget(), NS_DISPATCH_NORMAL));
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}
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void
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ServiceWorkerProxy::StopListeningOnMainThread()
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{
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AssertIsOnMainThread();
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mInfo = nullptr;
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}
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ServiceWorkerProxy::ServiceWorkerProxy(const ServiceWorkerDescriptor& aDescriptor)
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: mActor(nullptr)
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, mEventTarget(GetCurrentThreadSerialEventTarget())
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, mDescriptor(aDescriptor)
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{
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}
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void
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ServiceWorkerProxy::Init(ServiceWorkerParent* aActor)
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{
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AssertIsOnBackgroundThread();
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MOZ_DIAGNOSTIC_ASSERT(aActor);
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MOZ_DIAGNOSTIC_ASSERT(!mActor);
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MOZ_DIAGNOSTIC_ASSERT(mEventTarget);
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mActor = aActor;
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// Note, this must be done from a separate Init() method and not in
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// the constructor. If done from the constructor the runnable can
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// execute, complete, and release its reference before the constructor
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// returns.
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nsCOMPtr<nsIRunnable> r = NewRunnableMethod("ServiceWorkerProxy::Init", this,
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&ServiceWorkerProxy::InitOnMainThread);
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MOZ_ALWAYS_SUCCEEDS(SystemGroup::Dispatch(TaskCategory::Other, r.forget()));
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}
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void
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ServiceWorkerProxy::RevokeActor(ServiceWorkerParent* aActor)
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{
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AssertIsOnBackgroundThread();
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MOZ_DIAGNOSTIC_ASSERT(mActor);
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MOZ_DIAGNOSTIC_ASSERT(mActor == aActor);
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mActor = nullptr;
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nsCOMPtr<nsIRunnable> r =
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NewRunnableMethod(__func__, this,
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&ServiceWorkerProxy::StopListeningOnMainThread);
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MOZ_ALWAYS_SUCCEEDS(SystemGroup::Dispatch(TaskCategory::Other, r.forget()));
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}
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void
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ServiceWorkerProxy::PostMessage(RefPtr<ServiceWorkerCloneData>&& aData,
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const ClientInfo& aClientInfo,
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const ClientState& aClientState)
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{
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AssertIsOnBackgroundThread();
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RefPtr<ServiceWorkerProxy> self = this;
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nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(__func__,
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[self, data = std::move(aData), aClientInfo, aClientState] () mutable {
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if (!self->mInfo) {
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return;
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}
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self->mInfo->PostMessage(std::move(data), aClientInfo, aClientState);
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});
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MOZ_ALWAYS_SUCCEEDS(SystemGroup::Dispatch(TaskCategory::Other, r.forget()));
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}
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} // namespace dom
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} // namespace mozilla
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