forked from mirrors/gecko-dev
265e672179
# ignore-this-changeset --HG-- extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
111 lines
3.2 KiB
C++
111 lines
3.2 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 "mozilla/dom/cache/CacheWorkerHolder.h"
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#include "mozilla/dom/cache/ActorChild.h"
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#include "mozilla/dom/WorkerPrivate.h"
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namespace mozilla {
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namespace dom {
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namespace cache {
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// static
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already_AddRefed<CacheWorkerHolder> CacheWorkerHolder::Create(
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WorkerPrivate* aWorkerPrivate, Behavior aBehavior) {
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MOZ_DIAGNOSTIC_ASSERT(aWorkerPrivate);
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RefPtr<CacheWorkerHolder> workerHolder = new CacheWorkerHolder(aBehavior);
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if (NS_WARN_IF(!workerHolder->HoldWorker(aWorkerPrivate, Canceling))) {
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return nullptr;
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}
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return workerHolder.forget();
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}
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// static
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already_AddRefed<CacheWorkerHolder> CacheWorkerHolder::PreferBehavior(
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CacheWorkerHolder* aCurrentHolder, Behavior aBehavior) {
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if (!aCurrentHolder) {
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return nullptr;
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}
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RefPtr<CacheWorkerHolder> orig = aCurrentHolder;
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if (orig->GetBehavior() == aBehavior) {
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return orig.forget();
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}
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RefPtr<CacheWorkerHolder> replace = Create(orig->mWorkerPrivate, aBehavior);
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if (!replace) {
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return orig.forget();
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}
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return replace.forget();
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}
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void CacheWorkerHolder::AddActor(ActorChild* aActor) {
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NS_ASSERT_OWNINGTHREAD(CacheWorkerHolder);
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MOZ_DIAGNOSTIC_ASSERT(aActor);
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MOZ_ASSERT(!mActorList.Contains(aActor));
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mActorList.AppendElement(aActor);
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// Allow an actor to be added after we've entered the Notifying case. We
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// can't stop the actor creation from racing with out destruction of the
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// other actors and we need to wait for this extra one to close as well.
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// Signal it should destroy itself right away.
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if (mNotified) {
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aActor->StartDestroy();
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}
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}
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void CacheWorkerHolder::RemoveActor(ActorChild* aActor) {
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NS_ASSERT_OWNINGTHREAD(CacheWorkerHolder);
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MOZ_DIAGNOSTIC_ASSERT(aActor);
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#if defined(RELEASE_OR_BETA)
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mActorList.RemoveElement(aActor);
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#else
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MOZ_DIAGNOSTIC_ASSERT(mActorList.RemoveElement(aActor));
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#endif
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MOZ_ASSERT(!mActorList.Contains(aActor));
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}
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bool CacheWorkerHolder::Notified() const { return mNotified; }
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bool CacheWorkerHolder::Notify(WorkerStatus aStatus) {
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NS_ASSERT_OWNINGTHREAD(CacheWorkerHolder);
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// When the service worker thread is stopped we will get Canceling,
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// but nothing higher than that. We must shut things down at Canceling.
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if (aStatus < Canceling || mNotified) {
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return true;
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}
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mNotified = true;
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// Start the asynchronous destruction of our actors. These will call back
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// into RemoveActor() once the actor is destroyed.
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for (uint32_t i = 0; i < mActorList.Length(); ++i) {
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MOZ_DIAGNOSTIC_ASSERT(mActorList[i]);
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mActorList[i]->StartDestroy();
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}
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return true;
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}
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CacheWorkerHolder::CacheWorkerHolder(Behavior aBehavior)
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: WorkerHolder("CacheWorkerHolder", aBehavior), mNotified(false) {}
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CacheWorkerHolder::~CacheWorkerHolder() {
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NS_ASSERT_OWNINGTHREAD(CacheWorkerHolder);
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MOZ_DIAGNOSTIC_ASSERT(mActorList.IsEmpty());
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}
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} // namespace cache
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} // namespace dom
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} // namespace mozilla
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