| // Copyright (c) 2013 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. |
| |
| #ifndef CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_ |
| #define CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_ |
| |
| #include "base/memory/singleton.h" |
| #include "base/observer_list.h" |
| #include "base/process/process.h" |
| #include "base/values.h" |
| #include "content/common/content_export.h" |
| #include "content/public/browser/browser_child_process_observer.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| |
| namespace content { |
| class WebRTCInternalsUIObserver; |
| |
| // This is a singleton class running in the browser UI thread. |
| // It collects peer connection infomation from the renderers, |
| // forwards the data to WebRTCInternalsUIObserver and |
| // sends data collecting commands to the renderers. |
| class CONTENT_EXPORT WebRTCInternals : public BrowserChildProcessObserver, |
| public NotificationObserver { |
| public: |
| static WebRTCInternals* GetInstance(); |
| |
| // This method is called when a PeerConnection is created. |
| // |render_process_id| is the id of the render process (not OS pid), which is |
| // needed because we might not be able to get the OS process id when the |
| // render process terminates and we want to clean up. |
| // |pid| is the renderer process id, |lid| is the renderer local id used to |
| // identify a PeerConnection, |url| is the url of the tab owning the |
| // PeerConnection, |servers| is the servers configuration, |constraints| is |
| // the media constraints used to initialize the PeerConnection. |
| void OnAddPeerConnection(int render_process_id, |
| base::ProcessId pid, |
| int lid, |
| const std::string& url, |
| const std::string& servers, |
| const std::string& constraints); |
| |
| // This method is called when PeerConnection is destroyed. |
| // |pid| is the renderer process id, |lid| is the renderer local id. |
| void OnRemovePeerConnection(base::ProcessId pid, int lid); |
| |
| // This method is called when a PeerConnection is updated. |
| // |pid| is the renderer process id, |lid| is the renderer local id, |
| // |type| is the update type, |value| is the detail of the update. |
| void OnUpdatePeerConnection(base::ProcessId pid, |
| int lid, |
| const std::string& type, |
| const std::string& value); |
| |
| // This method is called when results from PeerConnectionInterface::GetStats |
| // are available. |pid| is the renderer process id, |lid| is the renderer |
| // local id, |value| is the list of stats reports. |
| void OnAddStats(base::ProcessId pid, int lid, const base::ListValue& value); |
| |
| // Methods for adding or removing WebRTCInternalsUIObserver. |
| void AddObserver(WebRTCInternalsUIObserver *observer); |
| void RemoveObserver(WebRTCInternalsUIObserver *observer); |
| |
| // Sends all update data to the observers. |
| void SendAllUpdates(); |
| |
| // Tells the renderer processes to start or stop recording RTP packets. |
| void StartRtpRecording(); |
| void StopRtpRecording(); |
| |
| private: |
| friend struct DefaultSingletonTraits<WebRTCInternals>; |
| |
| WebRTCInternals(); |
| virtual ~WebRTCInternals(); |
| |
| void SendUpdate(const std::string& command, base::Value* value); |
| |
| // BrowserChildProcessObserver implementation. |
| virtual void BrowserChildProcessCrashed( |
| const ChildProcessData& data) OVERRIDE; |
| |
| // NotificationObserver implementation. |
| virtual void Observe(int type, |
| const NotificationSource& source, |
| const NotificationDetails& details) OVERRIDE; |
| |
| // Called when a renderer exits (including crashes). |
| void OnRendererExit(int render_process_id); |
| |
| void SendRtpRecordingUpdate(); |
| |
| ObserverList<WebRTCInternalsUIObserver> observers_; |
| |
| // |peer_connection_data_| is a list containing all the PeerConnection |
| // updates. |
| // Each item of the list represents the data for one PeerConnection, which |
| // contains these fields: |
| // "pid" -- processId of the renderer that creates the PeerConnection. |
| // "lid" -- local Id assigned to the PeerConnection. |
| // "url" -- url of the web page that created the PeerConnection. |
| // "servers" and "constraints" -- server configuration and media constraints |
| // used to initialize the PeerConnection respectively. |
| // "log" -- a ListValue contains all the updates for the PeerConnection. Each |
| // list item is a DictionaryValue containing "type" and "value", both of which |
| // are strings. |
| base::ListValue peer_connection_data_; |
| |
| NotificationRegistrar registrar_; |
| |
| bool is_recording_rtp_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_MEDIA_WEBRTC_INTERNALS_H_ |