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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/. */
#include "ServiceWorkerRegistrationInfo.h"
#include "ServiceWorkerManager.h"
#include "ServiceWorkerPrivate.h"
#include "ServiceWorkerRegistrationListener.h"
#include "mozilla/SchedulerGroup.h"
namespace mozilla {
namespace dom {
namespace {
class ContinueActivateRunnable final : public LifeCycleEventCallback {
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> mRegistration;
bool mSuccess;
public:
explicit ContinueActivateRunnable(
const nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo>& aRegistration)
: mRegistration(aRegistration), mSuccess(false) {
MOZ_ASSERT(NS_IsMainThread());
}
void SetResult(bool aResult) override { mSuccess = aResult; }
NS_IMETHOD
Run() override {
MOZ_ASSERT(NS_IsMainThread());
mRegistration->FinishActivate(mSuccess);
mRegistration = nullptr;
return NS_OK;
}
};
} // anonymous namespace
void ServiceWorkerRegistrationInfo::ShutdownWorkers() {
ForEachWorker([](RefPtr<ServiceWorkerInfo>& aWorker) {
aWorker->WorkerPrivate()->NoteDeadServiceWorkerInfo();
aWorker = nullptr;
});
}
void ServiceWorkerRegistrationInfo::Clear() {
ForEachWorker([](RefPtr<ServiceWorkerInfo>& aWorker) {
aWorker->UpdateState(ServiceWorkerState::Redundant);
aWorker->UpdateRedundantTime();
});
// FIXME: Abort any inflight requests from installing worker.
ShutdownWorkers();
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
NotifyCleared();
}
void ServiceWorkerRegistrationInfo::ClearAsCorrupt() {
mCorrupt = true;
Clear();
}
bool ServiceWorkerRegistrationInfo::IsCorrupt() const { return mCorrupt; }
ServiceWorkerRegistrationInfo::ServiceWorkerRegistrationInfo(
const nsACString& aScope, nsIPrincipal* aPrincipal,
ServiceWorkerUpdateViaCache aUpdateViaCache)
: mPrincipal(aPrincipal),
mDescriptor(GetNextId(), GetNextVersion(), aPrincipal, aScope,
aUpdateViaCache),
mControlledClientsCounter(0),
mDelayMultiplier(0),
mUpdateState(NoUpdate),
mCreationTime(PR_Now()),
mCreationTimeStamp(TimeStamp::Now()),
mLastUpdateTime(0),
mUnregistered(false),
mCorrupt(false) {
MOZ_ASSERT_IF(ServiceWorkerParentInterceptEnabled(),
XRE_GetProcessType() == GeckoProcessType_Default);
}
ServiceWorkerRegistrationInfo::~ServiceWorkerRegistrationInfo() {
MOZ_DIAGNOSTIC_ASSERT(!IsControllingClients());
}
void ServiceWorkerRegistrationInfo::AddInstance(
ServiceWorkerRegistrationListener* aInstance,
const ServiceWorkerRegistrationDescriptor& aDescriptor) {
MOZ_DIAGNOSTIC_ASSERT(aInstance);
MOZ_ASSERT(!mInstanceList.Contains(aInstance));
MOZ_DIAGNOSTIC_ASSERT(aDescriptor.Id() == mDescriptor.Id());
MOZ_DIAGNOSTIC_ASSERT(aDescriptor.PrincipalInfo() ==
mDescriptor.PrincipalInfo());
MOZ_DIAGNOSTIC_ASSERT(aDescriptor.Scope() == mDescriptor.Scope());
MOZ_DIAGNOSTIC_ASSERT(aDescriptor.Version() <= mDescriptor.Version());
uint64_t lastVersion = aDescriptor.Version();
for (auto& entry : mVersionList) {
if (lastVersion > entry->mDescriptor.Version()) {
continue;
}
lastVersion = entry->mDescriptor.Version();
aInstance->UpdateState(entry->mDescriptor);
}
// Note, the mDescriptor may be contained in the version list. Since the
// version list is aged out, though, it may also not be in the version list.
// So always check for the mDescriptor update here.
if (lastVersion < mDescriptor.Version()) {
aInstance->UpdateState(mDescriptor);
}
mInstanceList.AppendElement(aInstance);
}
void ServiceWorkerRegistrationInfo::RemoveInstance(
ServiceWorkerRegistrationListener* aInstance) {
MOZ_DIAGNOSTIC_ASSERT(aInstance);
DebugOnly<bool> removed = mInstanceList.RemoveElement(aInstance);
MOZ_ASSERT(removed);
}
const nsCString& ServiceWorkerRegistrationInfo::Scope() const {
return mDescriptor.Scope();
}
nsIPrincipal* ServiceWorkerRegistrationInfo::Principal() const {
return mPrincipal;
}
bool ServiceWorkerRegistrationInfo::IsUnregistered() const {
return mUnregistered;
}
void ServiceWorkerRegistrationInfo::SetUnregistered() {
#ifdef DEBUG
MOZ_ASSERT(!mUnregistered);
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
RefPtr<ServiceWorkerRegistrationInfo> registration =
swm->GetRegistration(Principal(), Scope());
MOZ_ASSERT(registration != this);
#endif
mUnregistered = true;
}
NS_IMPL_ISUPPORTS(ServiceWorkerRegistrationInfo,
nsIServiceWorkerRegistrationInfo)
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetPrincipal(nsIPrincipal** aPrincipal) {
MOZ_ASSERT(NS_IsMainThread());
NS_ADDREF(*aPrincipal = mPrincipal);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetScope(nsAString& aScope) {
MOZ_ASSERT(NS_IsMainThread());
CopyUTF8toUTF16(Scope(), aScope);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetScriptSpec(nsAString& aScriptSpec) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerInfo> newest = NewestIncludingEvaluating();
if (newest) {
CopyUTF8toUTF16(newest->ScriptSpec(), aScriptSpec);
}
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetUpdateViaCache(uint16_t* aUpdateViaCache) {
*aUpdateViaCache = static_cast<uint16_t>(GetUpdateViaCache());
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetLastUpdateTime(PRTime* _retval) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(_retval);
*_retval = mLastUpdateTime;
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetEvaluatingWorker(
nsIServiceWorkerInfo** aResult) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerInfo> info = mEvaluatingWorker;
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetInstallingWorker(
nsIServiceWorkerInfo** aResult) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerInfo> info = mInstallingWorker;
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetWaitingWorker(
nsIServiceWorkerInfo** aResult) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerInfo> info = mWaitingWorker;
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetActiveWorker(nsIServiceWorkerInfo** aResult) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerInfo> info = mActiveWorker;
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::GetWorkerByID(uint64_t aID,
nsIServiceWorkerInfo** aResult) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aResult);
RefPtr<ServiceWorkerInfo> info = GetServiceWorkerInfoById(aID);
// It is ok to return null for a missing service worker info.
info.forget(aResult);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::AddListener(
nsIServiceWorkerRegistrationInfoListener* aListener) {
MOZ_ASSERT(NS_IsMainThread());
if (!aListener || mListeners.Contains(aListener)) {
return NS_ERROR_INVALID_ARG;
}
mListeners.AppendElement(aListener);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::RemoveListener(
nsIServiceWorkerRegistrationInfoListener* aListener) {
MOZ_ASSERT(NS_IsMainThread());
if (!aListener || !mListeners.Contains(aListener)) {
return NS_ERROR_INVALID_ARG;
}
mListeners.RemoveElement(aListener);
return NS_OK;
}
NS_IMETHODIMP
ServiceWorkerRegistrationInfo::ForceShutdown() {
ClearInstalling();
ShutdownWorkers();
return NS_OK;
}
already_AddRefed<ServiceWorkerInfo>
ServiceWorkerRegistrationInfo::GetServiceWorkerInfoById(uint64_t aId) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerInfo> serviceWorker;
if (mEvaluatingWorker && mEvaluatingWorker->ID() == aId) {
serviceWorker = mEvaluatingWorker;
} else if (mInstallingWorker && mInstallingWorker->ID() == aId) {
serviceWorker = mInstallingWorker;
} else if (mWaitingWorker && mWaitingWorker->ID() == aId) {
serviceWorker = mWaitingWorker;
} else if (mActiveWorker && mActiveWorker->ID() == aId) {
serviceWorker = mActiveWorker;
}
return serviceWorker.forget();
}
void ServiceWorkerRegistrationInfo::TryToActivateAsync(
TryToActivateCallback&& aCallback) {
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(
NewRunnableMethod<StoreCopyPassByRRef<TryToActivateCallback>>(
"ServiceWorkerRegistrationInfo::TryToActivate", this,
&ServiceWorkerRegistrationInfo::TryToActivate,
std::move(aCallback))));
}
/*
* TryToActivate should not be called directly, use TryToActivateAsync instead.
*/
void ServiceWorkerRegistrationInfo::TryToActivate(
TryToActivateCallback&& aCallback) {
MOZ_ASSERT(NS_IsMainThread());
bool controlling = IsControllingClients();
bool skipWaiting = mWaitingWorker && mWaitingWorker->SkipWaitingFlag();
bool idle = IsIdle();
if (idle && (!controlling || skipWaiting)) {
Activate();
}
if (aCallback) {
aCallback();
}
}
void ServiceWorkerRegistrationInfo::Activate() {
if (!mWaitingWorker) {
return;
}
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// browser shutdown began during async activation step
return;
}
TransitionWaitingToActive();
// FIXME(nsm): Unlink appcache if there is one.
// "Queue a task to fire a simple event named controllerchange..."
MOZ_DIAGNOSTIC_ASSERT(mActiveWorker);
swm->UpdateClientControllers(this);
nsMainThreadPtrHandle<ServiceWorkerRegistrationInfo> handle(
new nsMainThreadPtrHolder<ServiceWorkerRegistrationInfo>(
"ServiceWorkerRegistrationInfoProxy", this));
RefPtr<LifeCycleEventCallback> callback =
new ContinueActivateRunnable(handle);
ServiceWorkerPrivate* workerPrivate = mActiveWorker->WorkerPrivate();
MOZ_ASSERT(workerPrivate);
nsresult rv = workerPrivate->SendLifeCycleEvent(u"activate"_ns, callback);
if (NS_WARN_IF(NS_FAILED(rv))) {
nsCOMPtr<nsIRunnable> failRunnable = NewRunnableMethod<bool>(
"dom::ServiceWorkerRegistrationInfo::FinishActivate", this,
&ServiceWorkerRegistrationInfo::FinishActivate, false /* success */);
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(failRunnable.forget()));
return;
}
}
void ServiceWorkerRegistrationInfo::FinishActivate(bool aSuccess) {
if (mUnregistered || !mActiveWorker ||
mActiveWorker->State() != ServiceWorkerState::Activating) {
return;
}
// Activation never fails, so aSuccess is ignored.
mActiveWorker->UpdateState(ServiceWorkerState::Activated);
mActiveWorker->UpdateActivatedTime();
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// browser shutdown started during async activation completion step
return;
}
swm->StoreRegistration(mPrincipal, this);
}
void ServiceWorkerRegistrationInfo::RefreshLastUpdateCheckTime() {
MOZ_ASSERT(NS_IsMainThread());
mLastUpdateTime =
mCreationTime +
static_cast<PRTime>(
(TimeStamp::Now() - mCreationTimeStamp).ToMicroseconds());
NotifyChromeRegistrationListeners();
}
bool ServiceWorkerRegistrationInfo::IsLastUpdateCheckTimeOverOneDay() const {
MOZ_ASSERT(NS_IsMainThread());
// For testing.
if (Preferences::GetBool("dom.serviceWorkers.testUpdateOverOneDay")) {
return true;
}
const int64_t kSecondsPerDay = 86400;
const int64_t nowMicros =
mCreationTime +
static_cast<PRTime>(
(TimeStamp::Now() - mCreationTimeStamp).ToMicroseconds());
// now < mLastUpdateTime if the system time is reset between storing
// and loading mLastUpdateTime from ServiceWorkerRegistrar.
if (nowMicros < mLastUpdateTime ||
(nowMicros - mLastUpdateTime) / PR_USEC_PER_SEC > kSecondsPerDay) {
return true;
}
return false;
}
void ServiceWorkerRegistrationInfo::UpdateRegistrationState() {
UpdateRegistrationState(mDescriptor.UpdateViaCache());
}
void ServiceWorkerRegistrationInfo::UpdateRegistrationState(
ServiceWorkerUpdateViaCache aUpdateViaCache) {
MOZ_ASSERT(NS_IsMainThread());
TimeStamp oldest = TimeStamp::Now() - TimeDuration::FromSeconds(30);
if (!mVersionList.IsEmpty() && mVersionList[0]->mTimeStamp < oldest) {
nsTArray<UniquePtr<VersionEntry>> list;
mVersionList.SwapElements(list);
for (auto& entry : list) {
if (entry->mTimeStamp >= oldest) {
mVersionList.AppendElement(std::move(entry));
}
}
}
mVersionList.AppendElement(MakeUnique<VersionEntry>(mDescriptor));
// We are going to modify the descriptor, so increase its version number.
mDescriptor.SetVersion(GetNextVersion());
// Note, this also sets the new version number on the ServiceWorkerInfo
// objects before we copy over their updated descriptors.
mDescriptor.SetWorkers(mInstallingWorker, mWaitingWorker, mActiveWorker);
mDescriptor.SetUpdateViaCache(aUpdateViaCache);
for (RefPtr<ServiceWorkerRegistrationListener> pinnedTarget :
mInstanceList.ForwardRange()) {
pinnedTarget->UpdateState(mDescriptor);
}
}
void ServiceWorkerRegistrationInfo::NotifyChromeRegistrationListeners() {
nsTArray<nsCOMPtr<nsIServiceWorkerRegistrationInfoListener>> listeners(
mListeners.Clone());
for (size_t index = 0; index < listeners.Length(); ++index) {
listeners[index]->OnChange();
}
}
void ServiceWorkerRegistrationInfo::MaybeScheduleTimeCheckAndUpdate() {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// shutting down, do nothing
return;
}
if (mUpdateState == NoUpdate) {
mUpdateState = NeedTimeCheckAndUpdate;
}
swm->ScheduleUpdateTimer(mPrincipal, Scope());
}
void ServiceWorkerRegistrationInfo::MaybeScheduleUpdate() {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// shutting down, do nothing
return;
}
mUpdateState = NeedUpdate;
swm->ScheduleUpdateTimer(mPrincipal, Scope());
}
bool ServiceWorkerRegistrationInfo::CheckAndClearIfUpdateNeeded() {
MOZ_ASSERT(NS_IsMainThread());
bool result =
mUpdateState == NeedUpdate || (mUpdateState == NeedTimeCheckAndUpdate &&
IsLastUpdateCheckTimeOverOneDay());
mUpdateState = NoUpdate;
return result;
}
ServiceWorkerInfo* ServiceWorkerRegistrationInfo::GetEvaluating() const {
MOZ_ASSERT(NS_IsMainThread());
return mEvaluatingWorker;
}
ServiceWorkerInfo* ServiceWorkerRegistrationInfo::GetInstalling() const {
MOZ_ASSERT(NS_IsMainThread());
return mInstallingWorker;
}
ServiceWorkerInfo* ServiceWorkerRegistrationInfo::GetWaiting() const {
MOZ_ASSERT(NS_IsMainThread());
return mWaitingWorker;
}
ServiceWorkerInfo* ServiceWorkerRegistrationInfo::GetActive() const {
MOZ_ASSERT(NS_IsMainThread());
return mActiveWorker;
}
ServiceWorkerInfo* ServiceWorkerRegistrationInfo::GetByDescriptor(
const ServiceWorkerDescriptor& aDescriptor) const {
if (mActiveWorker && mActiveWorker->Descriptor().Matches(aDescriptor)) {
return mActiveWorker;
}
if (mWaitingWorker && mWaitingWorker->Descriptor().Matches(aDescriptor)) {
return mWaitingWorker;
}
if (mInstallingWorker &&
mInstallingWorker->Descriptor().Matches(aDescriptor)) {
return mInstallingWorker;
}
if (mEvaluatingWorker &&
mEvaluatingWorker->Descriptor().Matches(aDescriptor)) {
return mEvaluatingWorker;
}
return nullptr;
}
void ServiceWorkerRegistrationInfo::SetEvaluating(
ServiceWorkerInfo* aServiceWorker) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aServiceWorker);
MOZ_ASSERT(!mEvaluatingWorker);
MOZ_ASSERT(!mInstallingWorker);
MOZ_ASSERT(mWaitingWorker != aServiceWorker);
MOZ_ASSERT(mActiveWorker != aServiceWorker);
mEvaluatingWorker = aServiceWorker;
// We don't call UpdateRegistrationState() here because the evaluating worker
// is currently not exposed to content on the registration, so calling it here
// would produce redundant IPC traffic.
NotifyChromeRegistrationListeners();
}
void ServiceWorkerRegistrationInfo::ClearEvaluating() {
MOZ_ASSERT(NS_IsMainThread());
if (!mEvaluatingWorker) {
return;
}
mEvaluatingWorker->UpdateState(ServiceWorkerState::Redundant);
// We don't update the redundant time for the sw here, since we've not expose
// evalutingWorker yet.
mEvaluatingWorker = nullptr;
// As for SetEvaluating, UpdateRegistrationState() does not need to be called.
NotifyChromeRegistrationListeners();
}
void ServiceWorkerRegistrationInfo::ClearInstalling() {
MOZ_ASSERT(NS_IsMainThread());
if (!mInstallingWorker) {
return;
}
RefPtr<ServiceWorkerInfo> installing = std::move(mInstallingWorker);
installing->UpdateState(ServiceWorkerState::Redundant);
installing->UpdateRedundantTime();
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
}
void ServiceWorkerRegistrationInfo::TransitionEvaluatingToInstalling() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mEvaluatingWorker);
MOZ_ASSERT(!mInstallingWorker);
mInstallingWorker = std::move(mEvaluatingWorker);
mInstallingWorker->UpdateState(ServiceWorkerState::Installing);
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
}
void ServiceWorkerRegistrationInfo::TransitionInstallingToWaiting() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mInstallingWorker);
if (mWaitingWorker) {
MOZ_ASSERT(mInstallingWorker->CacheName() != mWaitingWorker->CacheName());
mWaitingWorker->UpdateState(ServiceWorkerState::Redundant);
mWaitingWorker->UpdateRedundantTime();
}
mWaitingWorker = std::move(mInstallingWorker);
mWaitingWorker->UpdateState(ServiceWorkerState::Installed);
mWaitingWorker->UpdateInstalledTime();
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
// TODO: When bug 1426401 is implemented we will need to call
// StoreRegistration() here to persist the waiting worker.
}
void ServiceWorkerRegistrationInfo::SetActive(
ServiceWorkerInfo* aServiceWorker) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aServiceWorker);
// TODO: Assert installing, waiting, and active are nullptr once the SWM
// moves to the parent process. After that happens this code will
// only run for browser initialization and not for cross-process
// overrides.
MOZ_ASSERT(mInstallingWorker != aServiceWorker);
MOZ_ASSERT(mWaitingWorker != aServiceWorker);
MOZ_ASSERT(mActiveWorker != aServiceWorker);
if (mActiveWorker) {
MOZ_ASSERT(aServiceWorker->CacheName() != mActiveWorker->CacheName());
mActiveWorker->UpdateState(ServiceWorkerState::Redundant);
mActiveWorker->UpdateRedundantTime();
}
// The active worker is being overriden due to initial load or
// another process activating a worker. Move straight to the
// Activated state.
mActiveWorker = aServiceWorker;
mActiveWorker->SetActivateStateUncheckedWithoutEvent(
ServiceWorkerState::Activated);
// We don't need to update activated time when we load registration from
// registrar.
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
}
void ServiceWorkerRegistrationInfo::TransitionWaitingToActive() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mWaitingWorker);
if (mActiveWorker) {
MOZ_ASSERT(mWaitingWorker->CacheName() != mActiveWorker->CacheName());
mActiveWorker->UpdateState(ServiceWorkerState::Redundant);
mActiveWorker->UpdateRedundantTime();
}
// We are transitioning from waiting to active normally, so go to
// the activating state.
mActiveWorker = std::move(mWaitingWorker);
mActiveWorker->UpdateState(ServiceWorkerState::Activating);
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(
"ServiceWorkerRegistrationInfo::TransitionWaitingToActive", [] {
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (swm) {
swm->CheckPendingReadyPromises();
}
});
MOZ_ALWAYS_SUCCEEDS(
SchedulerGroup::Dispatch(TaskCategory::Other, r.forget()));
UpdateRegistrationState();
NotifyChromeRegistrationListeners();
}
bool ServiceWorkerRegistrationInfo::IsIdle() const {
return !mActiveWorker || mActiveWorker->WorkerPrivate()->IsIdle();
}
ServiceWorkerUpdateViaCache ServiceWorkerRegistrationInfo::GetUpdateViaCache()
const {
return mDescriptor.UpdateViaCache();
}
void ServiceWorkerRegistrationInfo::SetUpdateViaCache(
ServiceWorkerUpdateViaCache aUpdateViaCache) {
UpdateRegistrationState(aUpdateViaCache);
}
int64_t ServiceWorkerRegistrationInfo::GetLastUpdateTime() const {
return mLastUpdateTime;
}
void ServiceWorkerRegistrationInfo::SetLastUpdateTime(const int64_t aTime) {
if (aTime == 0) {
return;
}
mLastUpdateTime = aTime;
}
const ServiceWorkerRegistrationDescriptor&
ServiceWorkerRegistrationInfo::Descriptor() const {
return mDescriptor;
}
uint64_t ServiceWorkerRegistrationInfo::Id() const { return mDescriptor.Id(); }
uint64_t ServiceWorkerRegistrationInfo::Version() const {
return mDescriptor.Version();
}
uint32_t ServiceWorkerRegistrationInfo::GetUpdateDelay(
const bool aWithMultiplier) {
uint32_t delay = Preferences::GetInt("dom.serviceWorkers.update_delay", 1000);
if (!aWithMultiplier) {
return delay;
}
// This can potentially happen if you spam registration->Update(). We don't
// want to wrap to a lower value.
if (mDelayMultiplier >= INT_MAX / (delay ? delay : 1)) {
return INT_MAX;
}
delay *= mDelayMultiplier;
if (!mControlledClientsCounter && mDelayMultiplier < (INT_MAX / 30)) {
mDelayMultiplier = (mDelayMultiplier ? mDelayMultiplier : 1) * 30;
}
return delay;
}
void ServiceWorkerRegistrationInfo::FireUpdateFound() {
for (RefPtr<ServiceWorkerRegistrationListener> pinnedTarget :
mInstanceList.ForwardRange()) {
pinnedTarget->FireUpdateFound();
}
}
void ServiceWorkerRegistrationInfo::NotifyCleared() {
for (RefPtr<ServiceWorkerRegistrationListener> pinnedTarget :
mInstanceList.ForwardRange()) {
pinnedTarget->RegistrationCleared();
}
}
void ServiceWorkerRegistrationInfo::ClearWhenIdle() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(IsUnregistered());
MOZ_ASSERT(!IsControllingClients());
MOZ_ASSERT(!IsIdle(), "Already idle!");
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
MOZ_ASSERT(swm);
swm->AddOrphanedRegistration(this);
/**
* Although a Service Worker will transition to idle many times during its
* lifetime, the promise is only resolved once `GetIdlePromise` has been
* called, populating the `MozPromiseHolder`. Additionally, this is the only
* time this method will be called for the given ServiceWorker. This means we
* will be notified to the transition we are interested in, and there are no
* other callers to get confused.
*
* Note that because we are using `MozPromise`, our callback will be invoked
* as a separate task, so there is a small potential for races in the event
* code if things are still holding onto the ServiceWorker binding and using
* `postMessage()` or other mechanisms to schedule new events on it, which
* would make it non-idle. However, this is a race inherent in the spec which
* does not deal with the reality of multiple threads in "Try Clear
* Registration".
*/
GetActive()->WorkerPrivate()->GetIdlePromise()->Then(
GetCurrentSerialEventTarget(), __func__,
[self = RefPtr<ServiceWorkerRegistrationInfo>(this)](
const GenericPromise::ResolveOrRejectValue& aResult) {
MOZ_ASSERT(aResult.IsResolve());
// This registration was already unregistered and not controlling
// clients when `ClearWhenIdle` was called, so there should be no way
// that more clients were acquired.
MOZ_ASSERT(!self->IsControllingClients());
MOZ_ASSERT(self->IsIdle());
self->Clear();
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (swm) {
swm->RemoveOrphanedRegistration(self);
}
});
}
const nsID& ServiceWorkerRegistrationInfo::AgentClusterId() const {
return mAgentClusterId;
}
// static
uint64_t ServiceWorkerRegistrationInfo::GetNextId() {
MOZ_ASSERT(NS_IsMainThread());
static uint64_t sNextId = 0;
return ++sNextId;
}
// static
uint64_t ServiceWorkerRegistrationInfo::GetNextVersion() {
MOZ_ASSERT(NS_IsMainThread());
static uint64_t sNextVersion = 0;
return ++sNextVersion;
}
void ServiceWorkerRegistrationInfo::ForEachWorker(
void (*aFunc)(RefPtr<ServiceWorkerInfo>&)) {
if (mEvaluatingWorker) {
aFunc(mEvaluatingWorker);
}
if (mInstallingWorker) {
aFunc(mInstallingWorker);
}
if (mWaitingWorker) {
aFunc(mWaitingWorker);
}
if (mActiveWorker) {
aFunc(mActiveWorker);
}
}
} // namespace dom
} // namespace mozilla