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https://github.com/mozilla/gecko-dev.git
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87438519f0
Before P1, GetCurrentThreadSerialEventTarget would have always returned the same data as NS_GetCurrentThread, making the comment incorrect Now it will properly return the running TaskQueue if any. This change of name more clearly exposes what they are doing, as we aren't always dealing with threads directly; but a nsISerialEventTarget Differential Revision: https://phabricator.services.mozilla.com/D80354
122 lines
3.7 KiB
C++
122 lines
3.7 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/SchedulerGroup.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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// 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 ServiceWorkerProxy::MaybeShutdownOnBGThread() {
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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 ServiceWorkerProxy::InitOnMainThread() {
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AssertIsOnMainThread();
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auto scopeExit = MakeScopeExit([&] { MaybeShutdownOnMainThread(); });
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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>(
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"ServiceWorkerProxy::mInfo", info);
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}
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void ServiceWorkerProxy::MaybeShutdownOnMainThread() {
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AssertIsOnMainThread();
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nsCOMPtr<nsIRunnable> r = NewRunnableMethod(
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__func__, this, &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 ServiceWorkerProxy::StopListeningOnMainThread() {
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AssertIsOnMainThread();
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mInfo = nullptr;
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}
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ServiceWorkerProxy::ServiceWorkerProxy(
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const ServiceWorkerDescriptor& aDescriptor)
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: mActor(nullptr),
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mEventTarget(GetCurrentSerialEventTarget()),
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mDescriptor(aDescriptor) {}
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void ServiceWorkerProxy::Init(ServiceWorkerParent* aActor) {
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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(
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"ServiceWorkerProxy::Init", this, &ServiceWorkerProxy::InitOnMainThread);
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MOZ_ALWAYS_SUCCEEDS(
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SchedulerGroup::Dispatch(TaskCategory::Other, r.forget()));
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}
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void ServiceWorkerProxy::RevokeActor(ServiceWorkerParent* aActor) {
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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 = NewRunnableMethod(
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__func__, this, &ServiceWorkerProxy::StopListeningOnMainThread);
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MOZ_ALWAYS_SUCCEEDS(
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SchedulerGroup::Dispatch(TaskCategory::Other, r.forget()));
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}
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void ServiceWorkerProxy::PostMessage(RefPtr<ServiceWorkerCloneData>&& aData,
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const ClientInfo& aClientInfo,
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const ClientState& aClientState) {
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AssertIsOnBackgroundThread();
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RefPtr<ServiceWorkerProxy> self = this;
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nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(
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__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(
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SchedulerGroup::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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