chrome/renderer/media/chrome_webrtc_log_message_delegate.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_RENDERER_MEDIA_CHROME_WEBRTC_LOG_MESSAGE_DELEGATE_H_
   6 #define CHROME_RENDERER_MEDIA_CHROME_WEBRTC_LOG_MESSAGE_DELEGATE_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/shared_memory.h"
  11 #include "content/public/renderer/webrtc_log_message_delegate.h"
  12 #include "ipc/ipc_channel_proxy.h"
  13
  14 namespace base {
  15 class MessageLoopProxy;
  16 }
  17
  18 class PartialCircularBuffer;
  19 class WebRtcLoggingMessageFilter;
  20
  21 // ChromeWebRtcLogMessageDelegate handles WebRTC logging. There is one object
  22 // per render process, owned by WebRtcLoggingMessageFilter. It communicates with
  23 // WebRtcLoggingHandlerHost and receives logging messages from libjingle and
  24 // writes them to a shared memory buffer.
  25 class ChromeWebRtcLogMessageDelegate
  26     : public content::WebRtcLogMessageDelegate,
  27       public base::NonThreadSafe {
  28  public:
  29   ChromeWebRtcLogMessageDelegate(
  30       const scoped_refptr<base::MessageLoopProxy>& io_message_loop,
  31       WebRtcLoggingMessageFilter* message_filter);
  32
  33   virtual ~ChromeWebRtcLogMessageDelegate();
  34
  35   // content::WebRtcLogMessageDelegate implementation.
  36   virtual void InitLogging(const std::string& app_session_id,
  37                            const std::string& app_url) OVERRIDE;
  38   virtual void LogMessage(const std::string& message) OVERRIDE;
  39
  40   void OnFilterRemoved();
  41
  42   void OnLogOpened(base::SharedMemoryHandle handle, uint32 length);
  43   void OnOpenLogFailed();
  44
  45  private:
  46   scoped_refptr<base::MessageLoopProxy> io_message_loop_;
  47   scoped_ptr<base::SharedMemory> shared_memory_;
  48   scoped_ptr<PartialCircularBuffer> circular_buffer_;
  49
  50   WebRtcLoggingMessageFilter* message_filter_;
  51   bool log_initialized_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(ChromeWebRtcLogMessageDelegate);
  54 };
  55
  56 #endif  // CHROME_RENDERER_MEDIA_CHROME_WEBRTC_LOG_MESSAGE_DELEGATE_H_