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2441a77d65
gecko/dom/ipc/ContentChild.cpp
Doug Turner 4707a1b209 Backing out 24aed997dbcd 
Matthew Gregan – Bug 614160 - Fix remote audio ownership and avoid sending IPCs when actor is being destroyed. r=dougt a=blocking=fennec
It caused windows builds to go red. qq.
a=me
2010-11-27 21:40:43 -08:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Content App.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Frederic Plourde <frederic.plourde@collabora.co.uk>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifdef MOZ_WIDGET_GTK2
#include <gtk/gtk.h>
#endif
#ifdef MOZ_WIDGET_QT
#include "nsQAppInstance.h"
#endif
#include "ContentChild.h"
#include "CrashReporterChild.h"
#include "TabChild.h"
#include "AudioChild.h"
#include "mozilla/ipc/TestShellChild.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/ipc/XPCShellEnvironment.h"
#include "mozilla/jsipc/PContextWrapperChild.h"
#include "mozilla/dom/ExternalHelperAppChild.h"
#include "mozilla/dom/StorageChild.h"
#include "mozilla/dom/PCrashReporterChild.h"
#include "nsAudioStream.h"
#include "nsIObserverService.h"
#include "nsTObserverArray.h"
#include "nsIObserver.h"
#include "nsIPrefService.h"
#include "nsServiceManagerUtils.h"
#include "nsXULAppAPI.h"
#include "nsWeakReference.h"
#include "nsIScriptError.h"
#include "nsIConsoleService.h"
#include "History.h"
#include "nsDocShellCID.h"
#include "nsNetUtil.h"
#include "base/message_loop.h"
#include "base/task.h"
#include "nsChromeRegistryContent.h"
#include "mozilla/chrome/RegistryMessageUtils.h"
#include "nsFrameMessageManager.h"
#include "nsIGeolocationProvider.h"
#ifdef MOZ_PERMISSIONS
#include "nsPermission.h"
#include "nsPermissionManager.h"
#endif
#if defined(ANDROID) || defined(LINUX)
#include <sys/time.h>
#include <sys/resource.h>
// TODO: For other platforms that support setpriority, figure out
// appropriate values of niceness
static const int kRelativeNiceness = 10;
#endif
#include "nsAccelerometer.h"
#if defined(ANDROID)
#include "APKOpen.h"
#endif
using namespace mozilla::ipc;
using namespace mozilla::net;
using namespace mozilla::places;
using namespace mozilla::docshell;
namespace mozilla {
namespace dom {
class AlertObserver
{
public:
AlertObserver(nsIObserver *aObserver, const nsString& aData)
: mData(aData)
, mObserver(aObserver)
{
}
~AlertObserver() {}
bool ShouldRemoveFrom(nsIObserver* aObserver,
const nsString& aData) const
{
return (mObserver == aObserver &&
mData == aData);
}
bool Observes(const nsString& aData) const
{
return mData.Equals(aData);
}
bool Notify(const nsCString& aType) const
{
mObserver->Observe(nsnull, aType.get(), mData.get());
return true;
}
private:
nsCOMPtr<nsIObserver> mObserver;
nsString mData;
};
class ConsoleListener : public nsIConsoleListener
{
public:
ConsoleListener(ContentChild* aChild)
: mChild(aChild) {}
NS_DECL_ISUPPORTS
NS_DECL_NSICONSOLELISTENER
private:
ContentChild* mChild;
friend class ContentChild;
};
NS_IMPL_ISUPPORTS1(ConsoleListener, nsIConsoleListener)
NS_IMETHODIMP
ConsoleListener::Observe(nsIConsoleMessage* aMessage)
{
if (!mChild)
return NS_OK;
nsCOMPtr<nsIScriptError> scriptError = do_QueryInterface(aMessage);
if (scriptError) {
nsString msg, sourceName, sourceLine;
nsXPIDLCString category;
PRUint32 lineNum, colNum, flags;
nsresult rv = scriptError->GetErrorMessage(msg);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetSourceName(sourceName);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetSourceLine(sourceLine);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetCategory(getter_Copies(category));
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetLineNumber(&lineNum);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetColumnNumber(&colNum);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetFlags(&flags);
NS_ENSURE_SUCCESS(rv, rv);
mChild->SendScriptError(msg, sourceName, sourceLine,
lineNum, colNum, flags, category);
return NS_OK;
}
nsXPIDLString msg;
nsresult rv = aMessage->GetMessageMoz(getter_Copies(msg));
NS_ENSURE_SUCCESS(rv, rv);
mChild->SendConsoleMessage(msg);
return NS_OK;
}
ContentChild* ContentChild::sSingleton;
ContentChild::ContentChild()
#ifdef ANDROID
: mScreenSize(0, 0)
#endif
{
}
ContentChild::~ContentChild()
{
}
bool
ContentChild::Init(MessageLoop* aIOLoop,
base::ProcessHandle aParentHandle,
IPC::Channel* aChannel)
{
#ifdef MOZ_WIDGET_GTK2
// sigh
gtk_init(NULL, NULL);
#endif
#ifdef MOZ_WIDGET_QT
// sigh, seriously
nsQAppInstance::AddRef();
#endif
#ifdef MOZ_X11
// Do this after initializing GDK, or GDK will install its own handler.
XRE_InstallX11ErrorHandler();
#endif
NS_ASSERTION(!sSingleton, "only one ContentChild per child");
#if defined(ANDROID) || defined(LINUX)
// XXX We change the behavior of Linux child processes here. That
// means that, not just in Fennec, but also in Firefox, once it has
// child processes, those will be niced. IOW, Firefox with child processes
// will have different performance profiles on Linux than other
// platforms. This may alter Talos results and so forth.
char* relativeNicenessStr = getenv("MOZ_CHILD_PROCESS_RELATIVE_NICENESS");
setpriority(PRIO_PROCESS, 0, getpriority(PRIO_PROCESS, 0) +
(relativeNicenessStr ? atoi(relativeNicenessStr) :
kRelativeNiceness));
#endif
Open(aChannel, aParentHandle, aIOLoop);
sSingleton = this;
#if defined(ANDROID)
PCrashReporterChild* crashreporter = SendPCrashReporterConstructor();
InfallibleTArray<Mapping> mappings;
const struct mapping_info *info = getLibraryMapping();
while (info->name) {
mappings.AppendElement(Mapping(nsDependentCString(info->name),
nsDependentCString(info->file_id),
info->base,
info->len,
info->offset));
info++;
}
crashreporter->SendAddLibraryMappings(mappings);
#endif
return true;
}
void
ContentChild::InitXPCOM()
{
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (!svc) {
NS_WARNING("Couldn't acquire console service");
return;
}
mConsoleListener = new ConsoleListener(this);
if (NS_FAILED(svc->RegisterListener(mConsoleListener)))
NS_WARNING("Couldn't register console listener for child process");
}
PBrowserChild*
ContentChild::AllocPBrowser(const PRUint32& aChromeFlags)
{
nsRefPtr<TabChild> iframe = new TabChild(aChromeFlags);
return NS_SUCCEEDED(iframe->Init()) ? iframe.forget().get() : NULL;
}
bool
ContentChild::DeallocPBrowser(PBrowserChild* iframe)
{
TabChild* child = static_cast<TabChild*>(iframe);
NS_RELEASE(child);
return true;
}
PCrashReporterChild*
ContentChild::AllocPCrashReporter()
{
return new CrashReporterChild();
}
bool
ContentChild::DeallocPCrashReporter(PCrashReporterChild* crashreporter)
{
delete crashreporter;
return true;
}
PTestShellChild*
ContentChild::AllocPTestShell()
{
return new TestShellChild();
}
bool
ContentChild::DeallocPTestShell(PTestShellChild* shell)
{
delete shell;
return true;
}
bool
ContentChild::RecvPTestShellConstructor(PTestShellChild* actor)
{
actor->SendPContextWrapperConstructor()->SendPObjectWrapperConstructor(true);
return true;
}
PAudioChild*
ContentChild::AllocPAudio(const PRInt32& numChannels,
const PRInt32& rate,
const PRInt32& format)
{
PAudioChild *child = new AudioChild();
return child;
}
bool
ContentChild::DeallocPAudio(PAudioChild* doomed)
{
delete doomed;
return true;
}
PNeckoChild*
ContentChild::AllocPNecko()
{
return new NeckoChild();
}
bool
ContentChild::DeallocPNecko(PNeckoChild* necko)
{
delete necko;
return true;
}
PExternalHelperAppChild*
ContentChild::AllocPExternalHelperApp(const IPC::URI& uri,
const nsCString& aMimeContentType,
const nsCString& aContentDisposition,
const bool& aForceSave,
const PRInt64& aContentLength,
const IPC::URI& aReferrer)
{
ExternalHelperAppChild *child = new ExternalHelperAppChild();
child->AddRef();
return child;
}
bool
ContentChild::DeallocPExternalHelperApp(PExternalHelperAppChild* aService)
{
ExternalHelperAppChild *child = static_cast<ExternalHelperAppChild*>(aService);
child->Release();
return true;
}
PStorageChild*
ContentChild::AllocPStorage(const StorageConstructData& aData)
{
NS_NOTREACHED("We should never be manually allocating PStorageChild actors");
return nsnull;
}
bool
ContentChild::DeallocPStorage(PStorageChild* aActor)
{
StorageChild* child = static_cast<StorageChild*>(aActor);
child->ReleaseIPDLReference();
return true;
}
bool
ContentChild::RecvRegisterChrome(const InfallibleTArray<ChromePackage>& packages,
const InfallibleTArray<ResourceMapping>& resources,
const InfallibleTArray<OverrideMapping>& overrides)
{
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryContent* chromeRegistry =
static_cast<nsChromeRegistryContent*>(registrySvc.get());
chromeRegistry->RegisterRemoteChrome(packages, resources, overrides);
return true;
}
bool
ContentChild::RecvSetOffline(const PRBool& offline)
{
nsCOMPtr<nsIIOService> io (do_GetIOService());
NS_ASSERTION(io, "IO Service can not be null");
io->SetOffline(offline);
return true;
}
void
ContentChild::ActorDestroy(ActorDestroyReason why)
{
if (AbnormalShutdown == why) {
NS_WARNING("shutting down early because of crash!");
QuickExit();
}
#ifndef DEBUG
// In release builds, there's no point in the content process
// going through the full XPCOM shutdown path, because it doesn't
// keep persistent state.
QuickExit();
#endif
mAlertObservers.Clear();
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (svc) {
svc->UnregisterListener(mConsoleListener);
mConsoleListener->mChild = nsnull;
}
XRE_ShutdownChildProcess();
}
void
ContentChild::ProcessingError(Result what)
{
switch (what) {
case MsgDropped:
QuickExit();
case MsgNotKnown:
case MsgNotAllowed:
case MsgPayloadError:
case MsgProcessingError:
case MsgRouteError:
case MsgValueError:
NS_RUNTIMEABORT("aborting because of fatal error");
default:
NS_RUNTIMEABORT("not reached");
}
}
void
ContentChild::QuickExit()
{
NS_WARNING("content process _exit()ing");
_exit(0);
}
nsresult
ContentChild::AddRemoteAlertObserver(const nsString& aData,
nsIObserver* aObserver)
{
NS_ASSERTION(aObserver, "Adding a null observer?");
mAlertObservers.AppendElement(new AlertObserver(aObserver, aData));
return NS_OK;
}
bool
ContentChild::RecvPreferenceUpdate(const PrefTuple& aPref)
{
nsCOMPtr<nsIPrefServiceInternal> prefs = do_GetService("@mozilla.org/preferences-service;1");
if (!prefs)
return false;
prefs->SetPreference(&aPref);
return true;
}
bool
ContentChild::RecvNotifyAlertsObserver(const nsCString& aType, const nsString& aData)
{
for (PRUint32 i = 0; i < mAlertObservers.Length();
/*we mutate the array during the loop; ++i iff no mutation*/) {
AlertObserver* observer = mAlertObservers[i];
if (observer->Observes(aData) && observer->Notify(aType)) {
// if aType == alertfinished, this alert is done. we can
// remove the observer.
if (aType.Equals(nsDependentCString("alertfinished"))) {
mAlertObservers.RemoveElementAt(i);
continue;
}
}
++i;
}
return true;
}
bool
ContentChild::RecvNotifyVisited(const IPC::URI& aURI)
{
nsCOMPtr<nsIURI> newURI(aURI);
History::GetService()->NotifyVisited(newURI);
return true;
}
bool
ContentChild::RecvAsyncMessage(const nsString& aMsg, const nsString& aJSON)
{
nsRefPtr<nsFrameMessageManager> cpm = nsFrameMessageManager::sChildProcessManager;
if (cpm) {
cpm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(cpm.get()),
aMsg, PR_FALSE, aJSON, nsnull, nsnull);
}
return true;
}
bool
ContentChild::RecvGeolocationUpdate(const GeoPosition& somewhere)
{
nsCOMPtr<nsIGeolocationUpdate> gs = do_GetService("@mozilla.org/geolocation/service;1");
if (!gs) {
return true;
}
nsCOMPtr<nsIDOMGeoPosition> position = somewhere;
gs->Update(position);
return true;
}
bool
ContentChild::RecvAddPermission(const IPC::Permission& permission)
{
#if MOZ_PERMISSIONS
nsRefPtr<nsPermissionManager> permissionManager =
nsPermissionManager::GetSingleton();
NS_ABORT_IF_FALSE(permissionManager,
"We have no permissionManager in the Content process !");
permissionManager->AddInternal(nsCString(permission.host),
nsCString(permission.type),
permission.capability,
0,
permission.expireType,
permission.expireTime,
nsPermissionManager::eNotify,
nsPermissionManager::eNoDBOperation);
#endif
return true;
}
bool
ContentChild::RecvAccelerationChanged(const double& x, const double& y,
const double& z)
{
nsCOMPtr<nsIAccelerometerUpdate> acu =
do_GetService(NS_ACCELEROMETER_CONTRACTID);
if (acu)
acu->AccelerationChanged(x, y, z);
return true;
}
bool
ContentChild::RecvScreenSizeChanged(const gfxIntSize& size)
{
#ifdef ANDROID
mScreenSize = size;
#else
NS_RUNTIMEABORT("Message currently only expected on android");
#endif
return true;
}
} // namespace dom
} // namespace mozilla
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