blob: e6c2f8252948449b90a0b1f7d43e5a91eae238f9 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <map>
#include <queue>
#include <string>
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "base/process/process.h"
#include "content/browser/child_process_launcher.h"
#include "content/browser/dom_storage/session_storage_namespace_impl.h"
#include "content/browser/power_monitor_message_broadcaster.h"
#include "content/common/content_export.h"
#include "content/common/mojo/service_registry_impl.h"
#include "content/public/browser/render_process_host.h"
#include "ipc/ipc_channel_proxy.h"
#include "ipc/ipc_platform_file.h"
#include "third_party/mojo/src/mojo/public/cpp/bindings/interface_ptr.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gl/gpu_switching_observer.h"
#if defined(OS_MACOSX) && !defined(OS_IOS)
#include "content/common/mac/io_surface_manager_token.h"
namespace base {
class CommandLine;
class MessageLoop;
namespace gfx {
class Size;
namespace gpu {
class ValueStateMap;
namespace IPC {
class ChannelMojoHost;
namespace content {
class AudioRendererHost;
class BluetoothDispatcherHost;
class BrowserCdmManager;
class BrowserDemuxerAndroid;
class GpuMessageFilter;
class InProcessChildThreadParams;
class MessagePortMessageFilter;
class MojoApplicationHost;
class NotificationMessageFilter;
#if defined(ENABLE_WEBRTC)
class P2PSocketDispatcherHost;
class PermissionServiceContext;
class PeerConnectionTrackerHost;
class RendererMainThread;
class RenderWidgetHelper;
class RenderWidgetHost;
class RenderWidgetHostImpl;
class RenderWidgetHostViewFrameSubscriber;
class StoragePartition;
class StoragePartitionImpl;
typedef base::Thread* (*RendererMainThreadFactoryFunction)(
const InProcessChildThreadParams& params);
// Implements a concrete RenderProcessHost for the browser process for talking
// to actual renderer processes (as opposed to mocks).
// Represents the browser side of the browser <--> renderer communication
// channel. There will be one RenderProcessHost per renderer process.
// This object is refcounted so that it can release its resources when all
// hosts using it go away.
// This object communicates back and forth with the RenderProcess object
// running in the renderer process. Each RenderProcessHost and RenderProcess
// keeps a list of RenderView (renderer) and WebContentsImpl (browser) which
// are correlated with IDs. This way, the Views and the corresponding ViewHosts
// communicate through the two process objects.
// A RenderProcessHost is also associated with one and only one
// StoragePartition. This allows us to implement strong storage isolation
// because all the IPCs from the RenderViews (renderer) will only ever be able
// to access the partition they are assigned to.
class CONTENT_EXPORT RenderProcessHostImpl
: public RenderProcessHost,
public ChildProcessLauncher::Client,
public ui::GpuSwitchingObserver {
RenderProcessHostImpl(BrowserContext* browser_context,
StoragePartitionImpl* storage_partition_impl,
bool is_for_guests_only);
~RenderProcessHostImpl() override;
// RenderProcessHost implementation (public portion).
void EnableSendQueue() override;
bool Init() override;
int GetNextRoutingID() override;
void AddRoute(int32 routing_id, IPC::Listener* listener) override;
void RemoveRoute(int32 routing_id) override;
void AddObserver(RenderProcessHostObserver* observer) override;
void RemoveObserver(RenderProcessHostObserver* observer) override;
void ShutdownForBadMessage() override;
void WidgetRestored() override;
void WidgetHidden() override;
int VisibleWidgetCount() const override;
bool IsForGuestsOnly() const override;
StoragePartition* GetStoragePartition() const override;
bool Shutdown(int exit_code, bool wait) override;
bool FastShutdownIfPossible() override;
base::ProcessHandle GetHandle() const override;
BrowserContext* GetBrowserContext() const override;
bool InSameStoragePartition(StoragePartition* partition) const override;
int GetID() const override;
bool HasConnection() const override;
void SetIgnoreInputEvents(bool ignore_input_events) override;
bool IgnoreInputEvents() const override;
void Cleanup() override;
void AddPendingView() override;
void RemovePendingView() override;
void SetSuddenTerminationAllowed(bool enabled) override;
bool SuddenTerminationAllowed() const override;
IPC::ChannelProxy* GetChannel() override;
void AddFilter(BrowserMessageFilter* filter) override;
bool FastShutdownForPageCount(size_t count) override;
bool FastShutdownStarted() const override;
base::TimeDelta GetChildProcessIdleTime() const override;
void ResumeRequestsForView(int route_id) override;
void FilterURL(bool empty_allowed, GURL* url) override;
#if defined(ENABLE_WEBRTC)
void EnableAecDump(const base::FilePath& file) override;
void DisableAecDump() override;
void SetWebRtcLogMessageCallback(
base::Callback<void(const std::string&)> callback) override;
WebRtcStopRtpDumpCallback StartRtpDump(
bool incoming,
bool outgoing,
const WebRtcRtpPacketCallback& packet_callback) override;
void ResumeDeferredNavigation(const GlobalRequestID& request_id) override;
void NotifyTimezoneChange(const std::string& timezone) override;
ServiceRegistry* GetServiceRegistry() override;
const base::TimeTicks& GetInitTimeForNavigationMetrics() const override;
bool SubscribeUniformEnabled() const override;
void OnAddSubscription(unsigned int target) override;
void OnRemoveSubscription(unsigned int target) override;
void SendUpdateValueState(
unsigned int target, const gpu::ValueState& state) override;
media::BrowserCdm* GetBrowserCdm(int render_frame_id,
int cdm_id) const override;
// IPC::Sender via RenderProcessHost.
bool Send(IPC::Message* msg) override;
// IPC::Listener via RenderProcessHost.
bool OnMessageReceived(const IPC::Message& msg) override;
void OnChannelConnected(int32 peer_pid) override;
void OnChannelError() override;
void OnBadMessageReceived(const IPC::Message& message) override;
// ChildProcessLauncher::Client implementation.
void OnProcessLaunched() override;
void OnProcessLaunchFailed() override;
scoped_refptr<AudioRendererHost> audio_renderer_host() const;
// Call this function when it is evident that the child process is actively
// performing some operation, for example if we just received an IPC message.
void mark_child_process_activity_time() {
child_process_activity_time_ = base::TimeTicks::Now();
// Start and end frame subscription for a specific renderer.
// This API only supports subscription to accelerated composited frames.
void BeginFrameSubscription(
int route_id,
scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber);
void EndFrameSubscription(int route_id);
#if defined(ENABLE_WEBRTC)
// Fires the webrtc log message callback with |message|, if callback is set.
void WebRtcLogMessage(const std::string& message);
// Used to extend the lifetime of the sessions until the render view
// in the renderer is fully closed. This is static because its also called
// with mock hosts as input in test cases.
static void ReleaseOnCloseACK(
RenderProcessHost* host,
const SessionStorageNamespaceMap& sessions,
int view_route_id);
// Register/unregister the host identified by the host id in the global host
// list.
static void RegisterHost(int host_id, RenderProcessHost* host);
static void UnregisterHost(int host_id);
// Implementation of FilterURL below that can be shared with the mock class.
static void FilterURL(RenderProcessHost* rph, bool empty_allowed, GURL* url);
// Returns true if |host| is suitable for launching a new view with |site_url|
// in the given |browser_context|.
static bool IsSuitableHost(RenderProcessHost* host,
BrowserContext* browser_context,
const GURL& site_url);
// Returns an existing RenderProcessHost for |url| in |browser_context|,
// if one exists. Otherwise a new RenderProcessHost should be created and
// registered using RegisterProcessHostForSite().
// This should only be used for process-per-site mode, which can be enabled
// globally with a command line flag or per-site, as determined by
// SiteInstanceImpl::ShouldUseProcessPerSite.
static RenderProcessHost* GetProcessHostForSite(
BrowserContext* browser_context,
const GURL& url);
// Registers the given |process| to be used for any instance of |url|
// within |browser_context|.
// This should only be used for process-per-site mode, which can be enabled
// globally with a command line flag or per-site, as determined by
// SiteInstanceImpl::ShouldUseProcessPerSite.
static void RegisterProcessHostForSite(
BrowserContext* browser_context,
RenderProcessHost* process,
const GURL& url);
static base::MessageLoop* GetInProcessRendererThreadForTesting();
// This forces a renderer that is running "in process" to shut down.
static void ShutDownInProcessRenderer();
static void RegisterRendererMainThreadFactory(
RendererMainThreadFactoryFunction create);
#if defined(OS_ANDROID)
const scoped_refptr<BrowserDemuxerAndroid>& browser_demuxer_android() {
return browser_demuxer_android_;
MessagePortMessageFilter* message_port_message_filter() const {
return message_port_message_filter_.get();
NotificationMessageFilter* notification_message_filter() const {
return notification_message_filter_.get();
void set_is_for_guests_only_for_testing(bool is_for_guests_only) {
is_for_guests_only_ = is_for_guests_only;
// Called when the existence of the other renderer process which is connected
// to the Worker in this renderer process has changed.
// It is only called when "enable-embedded-shared-worker" flag is set.
void IncrementWorkerRefCount();
void DecrementWorkerRefCount();
void GetAudioOutputControllers(
const GetAudioOutputControllersCallback& callback) const override;
BluetoothDispatcherHost* GetBluetoothDispatcherHost();
// A proxy for our IPC::Channel that lives on the IO thread (see
// browser_process.h)
scoped_ptr<IPC::ChannelProxy> channel_;
// True if fast shutdown has been performed on this RPH.
bool fast_shutdown_started_;
// True if we've posted a DeleteTask and will be deleted soon.
bool deleting_soon_;
#ifndef NDEBUG
// True if this object has deleted itself.
bool is_self_deleted_;
// The count of currently swapped out but pending RenderViews. We have
// started to swap these in, so the renderer process should not exit if
// this count is non-zero.
int32 pending_views_;
friend class VisitRelayingRenderProcessHost;
friend class ChildProcessLauncherBrowserTest_ChildSpawnFail_Test;
scoped_ptr<IPC::ChannelProxy> CreateChannelProxy(
const std::string& channel_id);
// Creates and adds the IO thread message filters.
void CreateMessageFilters();
// Registers Mojo services to be exposed to the renderer.
void RegisterMojoServices();
// Control message handlers.
void OnShutdownRequest();
void SuddenTerminationChanged(bool enabled);
void OnUserMetricsRecordAction(const std::string& action);
void OnSavedPageAsMHTML(int job_id, int64 mhtml_file_size);
void OnCloseACK(int old_route_id);
// Generates a command line to be used to spawn a renderer and appends the
// results to |*command_line|.
void AppendRendererCommandLine(base::CommandLine* command_line) const;
// Copies applicable command line switches from the given |browser_cmd| line
// flags to the output |renderer_cmd| line flags. Not all switches will be
// copied over.
void PropagateBrowserCommandLineToRenderer(
const base::CommandLine& browser_cmd,
base::CommandLine* renderer_cmd) const;
// Callers can reduce the RenderProcess' priority.
void SetBackgrounded(bool backgrounded);
// Handle termination of our process.
void ProcessDied(bool already_dead, RendererClosedDetails* known_details);
// GpuSwitchingObserver implementation.
void OnGpuSwitched() override;
#if defined(ENABLE_WEBRTC)
void OnRegisterAecDumpConsumer(int id);
void OnUnregisterAecDumpConsumer(int id);
void RegisterAecDumpConsumerOnUIThread(int id);
void UnregisterAecDumpConsumerOnUIThread(int id);
void EnableAecDumpForId(const base::FilePath& file, int id);
// Sends |file_for_transit| to the render process.
void SendAecDumpFileToRenderer(int id,
IPC::PlatformFileForTransit file_for_transit);
void SendDisableAecDumpToRenderer();
scoped_ptr<MojoApplicationHost> mojo_application_host_;
// The registered IPC listener objects. When this list is empty, we should
// delete ourselves.
IDMap<IPC::Listener> listeners_;
// The count of currently visible widgets. Since the host can be a container
// for multiple widgets, it uses this count to determine when it should be
// backgrounded.
int32 visible_widgets_;
// Does this process have backgrounded priority.
bool backgrounded_;
// Used to allow a RenderWidgetHost to intercept various messages on the
// IO thread.
scoped_refptr<RenderWidgetHelper> widget_helper_;
// The filter for GPU-related messages coming from the renderer.
// Thread safety note: this field is to be accessed from the UI thread.
// We don't keep a reference to it, to avoid it being destroyed on the UI
// thread, but we clear this field when we clear channel_. When channel_ goes
// away, it posts a task to the IO thread to destroy it there, so we know that
// it's valid if non-NULL.
GpuMessageFilter* gpu_message_filter_;
// The filter for MessagePort messages coming from the renderer.
scoped_refptr<MessagePortMessageFilter> message_port_message_filter_;
// The filter for Web Notification messages coming from the renderer. Holds a
// closure per notification that must be freed when the notification closes.
scoped_refptr<NotificationMessageFilter> notification_message_filter_;
// Used in single-process mode.
scoped_ptr<base::Thread> in_process_renderer_;
// True after Init() has been called. We can't just check channel_ because we
// also reset that in the case of process termination.
bool is_initialized_;
// PlzNavigate
// Stores the time at which the first call to Init happened.
base::TimeTicks init_time_;
// Used to launch and terminate the process without blocking the UI thread.
scoped_ptr<ChildProcessLauncher> child_process_launcher_;
// Messages we queue while waiting for the process handle. We queue them here
// instead of in the channel so that we ensure they're sent after init related
// messages that are sent once the process handle is available. This is
// because the queued messages may have dependencies on the init messages.
std::queue<IPC::Message*> queued_messages_;
// The globally-unique identifier for this RPH.
int id_;
BrowserContext* browser_context_;
// Owned by |browser_context_|.
StoragePartitionImpl* storage_partition_impl_;
// The observers watching our lifetime.
base::ObserverList<RenderProcessHostObserver> observers_;
// True if the process can be shut down suddenly. If this is true, then we're
// sure that all the RenderViews in the process can be shutdown suddenly. If
// it's false, then specific RenderViews might still be allowed to be shutdown
// suddenly by checking their SuddenTerminationAllowed() flag. This can occur
// if one WebContents has an unload event listener but another WebContents in
// the same process doesn't.
bool sudden_termination_allowed_;
// Set to true if we shouldn't send input events. We actually do the
// filtering for this at the render widget level.
bool ignore_input_events_;
// Records the last time we regarded the child process active.
base::TimeTicks child_process_activity_time_;
// Indicates whether this RenderProcessHost is exclusively hosting guest
// RenderFrames.
bool is_for_guests_only_;
// Forwards messages between WebRTCInternals in the browser process
// and PeerConnectionTracker in the renderer process.
scoped_refptr<PeerConnectionTrackerHost> peer_connection_tracker_host_;
// Prevents the class from being added as a GpuDataManagerImpl observer more
// than once.
bool gpu_observer_registered_;
// Set if a call to Cleanup is required once the RenderProcessHostImpl is no
// longer within the RenderProcessHostObserver::RenderProcessExited callbacks.
bool delayed_cleanup_needed_;
// Indicates whether RenderProcessHostImpl is currently iterating and calling
// through RenderProcessHostObserver::RenderProcessExited.
bool within_process_died_observer_;
// Forwards power state messages to the renderer process.
PowerMonitorMessageBroadcaster power_monitor_broadcaster_;
scoped_refptr<AudioRendererHost> audio_renderer_host_;
scoped_refptr<BluetoothDispatcherHost> bluetooth_dispatcher_host_;
#if defined(OS_ANDROID)
scoped_refptr<BrowserDemuxerAndroid> browser_demuxer_android_;
#if defined(ENABLE_WEBRTC)
base::Callback<void(const std::string&)> webrtc_log_message_callback_;
scoped_refptr<P2PSocketDispatcherHost> p2p_socket_dispatcher_host_;
// Must be accessed on UI thread.
std::vector<int> aec_dump_consumers_;
WebRtcStopRtpDumpCallback stop_rtp_dump_callback_;
int worker_ref_count_;
// Records the time when the process starts surviving for workers for UMA.
base::TimeTicks survive_for_worker_start_time_;
// Records the maximum # of workers simultaneously hosted in this process
// for UMA.
int max_worker_count_;
// Context shared for each PermissionService instance created for this RPH.
scoped_ptr<PermissionServiceContext> permission_service_context_;
// This is a set of all subscription targets valuebuffers in the GPU process
// are currently subscribed too. Used to prevent sending unnecessary
// ValueState updates.
typedef base::hash_set<unsigned int> SubscriptionSet;
SubscriptionSet subscription_set_;
// Maintains ValueStates which are not currently subscribed too so we can
// pass them to the GpuService if a Valuebuffer ever subscribes to the
// respective subscription target
scoped_refptr<gpu::ValueStateMap> pending_valuebuffer_state_;
// Whether or not the CHROMIUM_subscribe_uniform WebGL extension is enabled
bool subscribe_uniform_enabled_;
#if defined(OS_MACOSX) && !defined(OS_IOS)
// Unique unguessable token that the child process is using to acquire
// IOSurface references.
IOSurfaceManagerToken io_surface_manager_token_;
base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
} // namespace content