forked from mirrors/gecko-dev
46c41f3318
Differential Revision: https://phabricator.services.mozilla.com/D35229 --HG-- rename : dom/cache/CacheWorkerHolder.cpp => dom/cache/CacheWorkerRef.cpp rename : dom/cache/CacheWorkerHolder.h => dom/cache/CacheWorkerRef.h extra : moz-landing-system : lando
130 lines
3.7 KiB
C++
130 lines
3.7 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/. */
|
|
|
|
#include "mozilla/dom/cache/CacheWorkerRef.h"
|
|
|
|
#include "mozilla/dom/cache/ActorChild.h"
|
|
#include "mozilla/dom/WorkerPrivate.h"
|
|
#include "mozilla/dom/WorkerRef.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
namespace cache {
|
|
|
|
// static
|
|
already_AddRefed<CacheWorkerRef> CacheWorkerRef::Create(
|
|
WorkerPrivate* aWorkerPrivate, Behavior aBehavior) {
|
|
MOZ_DIAGNOSTIC_ASSERT(aWorkerPrivate);
|
|
|
|
RefPtr<CacheWorkerRef> workerRef = new CacheWorkerRef(aBehavior);
|
|
if (aBehavior == eStrongWorkerRef) {
|
|
workerRef->mStrongWorkerRef =
|
|
StrongWorkerRef::Create(aWorkerPrivate, "CacheWorkerRef-Strong",
|
|
[workerRef] { workerRef->Notify(); });
|
|
} else {
|
|
MOZ_ASSERT(aBehavior == eIPCWorkerRef);
|
|
workerRef->mIPCWorkerRef =
|
|
IPCWorkerRef::Create(aWorkerPrivate, "CacheWorkerRef-IPC",
|
|
[workerRef] { workerRef->Notify(); });
|
|
}
|
|
|
|
if (NS_WARN_IF(!workerRef->mIPCWorkerRef && !workerRef->mStrongWorkerRef)) {
|
|
return nullptr;
|
|
}
|
|
|
|
return workerRef.forget();
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<CacheWorkerRef> CacheWorkerRef::PreferBehavior(
|
|
CacheWorkerRef* aCurrentRef, Behavior aBehavior) {
|
|
if (!aCurrentRef) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<CacheWorkerRef> orig = aCurrentRef;
|
|
if (orig->mBehavior == aBehavior) {
|
|
return orig.forget();
|
|
}
|
|
|
|
WorkerPrivate* workerPrivate = nullptr;
|
|
if (orig->mBehavior == eStrongWorkerRef) {
|
|
workerPrivate = orig->mStrongWorkerRef->Private();
|
|
} else {
|
|
MOZ_ASSERT(orig->mBehavior == eIPCWorkerRef);
|
|
workerPrivate = orig->mIPCWorkerRef->Private();
|
|
}
|
|
|
|
MOZ_ASSERT(workerPrivate);
|
|
|
|
RefPtr<CacheWorkerRef> replace = Create(workerPrivate, aBehavior);
|
|
if (!replace) {
|
|
return orig.forget();
|
|
}
|
|
|
|
return replace.forget();
|
|
}
|
|
|
|
void CacheWorkerRef::AddActor(ActorChild* aActor) {
|
|
NS_ASSERT_OWNINGTHREAD(CacheWorkerRef);
|
|
MOZ_DIAGNOSTIC_ASSERT(aActor);
|
|
MOZ_ASSERT(!mActorList.Contains(aActor));
|
|
|
|
mActorList.AppendElement(aActor);
|
|
|
|
// Allow an actor to be added after we've entered the Notifying case. We
|
|
// can't stop the actor creation from racing with out destruction of the
|
|
// other actors and we need to wait for this extra one to close as well.
|
|
// Signal it should destroy itself right away.
|
|
if (mNotified) {
|
|
aActor->StartDestroy();
|
|
}
|
|
}
|
|
|
|
void CacheWorkerRef::RemoveActor(ActorChild* aActor) {
|
|
NS_ASSERT_OWNINGTHREAD(CacheWorkerRef);
|
|
MOZ_DIAGNOSTIC_ASSERT(aActor);
|
|
|
|
#if defined(RELEASE_OR_BETA)
|
|
mActorList.RemoveElement(aActor);
|
|
#else
|
|
MOZ_DIAGNOSTIC_ASSERT(mActorList.RemoveElement(aActor));
|
|
#endif
|
|
|
|
MOZ_ASSERT(!mActorList.Contains(aActor));
|
|
|
|
if (mActorList.IsEmpty()) {
|
|
mStrongWorkerRef = nullptr;
|
|
mIPCWorkerRef = nullptr;
|
|
}
|
|
}
|
|
|
|
bool CacheWorkerRef::Notified() const { return mNotified; }
|
|
|
|
void CacheWorkerRef::Notify() {
|
|
NS_ASSERT_OWNINGTHREAD(CacheWorkerRef);
|
|
|
|
mNotified = true;
|
|
|
|
// Start the asynchronous destruction of our actors. These will call back
|
|
// into RemoveActor() once the actor is destroyed.
|
|
for (uint32_t i = 0; i < mActorList.Length(); ++i) {
|
|
MOZ_DIAGNOSTIC_ASSERT(mActorList[i]);
|
|
mActorList[i]->StartDestroy();
|
|
}
|
|
}
|
|
|
|
CacheWorkerRef::CacheWorkerRef(Behavior aBehavior)
|
|
: mBehavior(aBehavior), mNotified(false) {}
|
|
|
|
CacheWorkerRef::~CacheWorkerRef() {
|
|
NS_ASSERT_OWNINGTHREAD(CacheWorkerRef);
|
|
MOZ_DIAGNOSTIC_ASSERT(mActorList.IsEmpty());
|
|
}
|
|
|
|
} // namespace cache
|
|
} // namespace dom
|
|
} // namespace mozilla
|