gecko-dev/dom/system/gonk/SystemWorkerManager.cpp

240 lines
5.7 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* Copyright 2012 Mozilla Foundation and Mozilla contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "SystemWorkerManager.h"
#include "nsINetworkService.h"
#include "nsIWifi.h"
#include "nsIWorkerHolder.h"
#include "nsIXPConnect.h"
#include "jsfriendapi.h"
#include "mozilla/dom/workers/Workers.h"
#include "AutoMounter.h"
#include "TimeZoneSettingObserver.h"
#include "AudioManager.h"
#include "mozilla/dom/ScriptSettings.h"
#ifdef MOZ_B2G_RIL
#include "mozilla/ipc/Ril.h"
#endif
#include "mozilla/ipc/KeyStore.h"
#include "nsIObserverService.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "nsRadioInterfaceLayer.h"
#include "WifiWorker.h"
#include "mozilla/Services.h"
USING_WORKERS_NAMESPACE
using namespace mozilla::dom::gonk;
using namespace mozilla::ipc;
using namespace mozilla::system;
namespace {
NS_DEFINE_CID(kWifiWorkerCID, NS_WIFIWORKER_CID);
// Doesn't carry a reference, we're owned by services.
SystemWorkerManager *gInstance = nullptr;
} // anonymous namespace
SystemWorkerManager::SystemWorkerManager()
: mShutdown(false)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(!gInstance, "There should only be one instance!");
}
SystemWorkerManager::~SystemWorkerManager()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(!gInstance || gInstance == this,
"There should only be one instance!");
gInstance = nullptr;
}
nsresult
SystemWorkerManager::Init()
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
return NS_ERROR_NOT_AVAILABLE;
}
NS_ASSERTION(NS_IsMainThread(), "We can only initialize on the main thread");
NS_ASSERTION(!mShutdown, "Already shutdown!");
mozilla::AutoSafeJSContext cx;
nsresult rv = InitWifi(cx);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to initialize WiFi Networking!");
return rv;
}
InitKeyStore(cx);
InitAutoMounter();
InitializeTimeZoneSettingObserver();
nsCOMPtr<nsIAudioManager> audioManager =
do_GetService(NS_AUDIOMANAGER_CONTRACTID);
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (!obs) {
NS_WARNING("Failed to get observer service!");
return NS_ERROR_FAILURE;
}
rv = obs->AddObserver(this, WORKERS_SHUTDOWN_TOPIC, false);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to initialize worker shutdown event!");
return rv;
}
return NS_OK;
}
void
SystemWorkerManager::Shutdown()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
mShutdown = true;
ShutdownAutoMounter();
#ifdef MOZ_B2G_RIL
RilConsumer::Shutdown();
#endif
nsCOMPtr<nsIWifi> wifi(do_QueryInterface(mWifiWorker));
if (wifi) {
wifi->Shutdown();
wifi = nullptr;
}
mWifiWorker = nullptr;
if (mKeyStore) {
mKeyStore->Shutdown();
mKeyStore = nullptr;
}
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->RemoveObserver(this, WORKERS_SHUTDOWN_TOPIC);
}
}
// static
already_AddRefed<SystemWorkerManager>
SystemWorkerManager::FactoryCreate()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsRefPtr<SystemWorkerManager> instance(gInstance);
if (!instance) {
instance = new SystemWorkerManager();
if (NS_FAILED(instance->Init())) {
instance->Shutdown();
return nullptr;
}
gInstance = instance;
}
return instance.forget();
}
// static
nsIInterfaceRequestor*
SystemWorkerManager::GetInterfaceRequestor()
{
return gInstance;
}
NS_IMETHODIMP
SystemWorkerManager::GetInterface(const nsIID &aIID, void **aResult)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (aIID.Equals(NS_GET_IID(nsIWifi))) {
return CallQueryInterface(mWifiWorker,
reinterpret_cast<nsIWifi**>(aResult));
}
NS_WARNING("Got nothing for the requested IID!");
return NS_ERROR_NO_INTERFACE;
}
nsresult
SystemWorkerManager::RegisterRilWorker(unsigned int aClientId,
JS::Handle<JS::Value> aWorker,
JSContext *aCx)
{
#ifndef MOZ_B2G_RIL
return NS_ERROR_NOT_IMPLEMENTED;
#else
NS_ENSURE_TRUE(aWorker.isObject(), NS_ERROR_UNEXPECTED);
JSAutoCompartment ac(aCx, &aWorker.toObject());
WorkerCrossThreadDispatcher *wctd =
GetWorkerCrossThreadDispatcher(aCx, aWorker);
if (!wctd) {
NS_WARNING("Failed to GetWorkerCrossThreadDispatcher for ril");
return NS_ERROR_FAILURE;
}
return RilConsumer::Register(aClientId, wctd);
#endif // MOZ_B2G_RIL
}
nsresult
SystemWorkerManager::InitWifi(JSContext *cx)
{
nsCOMPtr<nsIWorkerHolder> worker = do_CreateInstance(kWifiWorkerCID);
NS_ENSURE_TRUE(worker, NS_ERROR_FAILURE);
mWifiWorker = worker;
return NS_OK;
}
nsresult
SystemWorkerManager::InitKeyStore(JSContext *cx)
{
mKeyStore = new KeyStore();
return NS_OK;
}
NS_IMPL_ISUPPORTS(SystemWorkerManager,
nsIObserver,
nsIInterfaceRequestor,
nsISystemWorkerManager)
NS_IMETHODIMP
SystemWorkerManager::Observe(nsISupports *aSubject, const char *aTopic,
const char16_t *aData)
{
if (!strcmp(aTopic, WORKERS_SHUTDOWN_TOPIC)) {
Shutdown();
}
return NS_OK;
}