gecko/dom/workers/ServiceWorkerPeriodicUpdater.cpp
Ehsan Akhgari 4dd6b5c6e5 Bug 1112469 - Part 4: Disable periodic updates of service workers when running tests; r=nsm
This is meant to avoid random issues with Gecko suddenly kicking off the
periodic updates in the middle of our test runs.  This uses a hidden pref
intentionally since nobody should be able to discover this pref by going
to about:config.
2015-04-17 14:06:02 -04:00

80 lines
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
* 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 "ServiceWorkerPeriodicUpdater.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/unused.h"
#include "mozilla/Services.h"
#include "mozilla/Preferences.h"
#include "mozilla/dom/ContentParent.h"
#include "nsIServiceWorkerManager.h"
#define OBSERVER_TOPIC_IDLE_DAILY "idle-daily"
namespace mozilla {
namespace dom {
namespace workers {
NS_IMPL_ISUPPORTS(ServiceWorkerPeriodicUpdater, nsIObserver)
StaticRefPtr<ServiceWorkerPeriodicUpdater>
ServiceWorkerPeriodicUpdater::sInstance;
bool
ServiceWorkerPeriodicUpdater::sPeriodicUpdatesEnabled = true;
already_AddRefed<ServiceWorkerPeriodicUpdater>
ServiceWorkerPeriodicUpdater::GetSingleton()
{
MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Default);
if (!sInstance) {
sInstance = new ServiceWorkerPeriodicUpdater();
ClearOnShutdown(&sInstance);
}
nsRefPtr<ServiceWorkerPeriodicUpdater> copy(sInstance.get());
return copy.forget();
}
ServiceWorkerPeriodicUpdater::ServiceWorkerPeriodicUpdater()
{
Preferences::AddBoolVarCache(&sPeriodicUpdatesEnabled,
"dom.serviceWorkers.periodic-updates.enabled",
true);
}
ServiceWorkerPeriodicUpdater::~ServiceWorkerPeriodicUpdater()
{
}
NS_IMETHODIMP
ServiceWorkerPeriodicUpdater::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
if (strcmp(aTopic, OBSERVER_TOPIC_IDLE_DAILY) == 0 &&
sPeriodicUpdatesEnabled) {
// First, update all registrations in the parent process.
nsCOMPtr<nsIServiceWorkerManager> swm =
mozilla::services::GetServiceWorkerManager();
if (swm) {
swm->UpdateAllRegistrations();
}
// Now, tell all child processes to update their registrations as well.
nsTArray<ContentParent*> children;
ContentParent::GetAll(children);
for (uint32_t i = 0; i < children.Length(); i++) {
unused << children[i]->SendUpdateServiceWorkerRegistrations();
}
}
return NS_OK;
}
} // namespace workers
} // namespace dom
} // namespace mozilla