content/browser/profiler_message_filter.h

   1 // Copyright (c) 2012 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 CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_
   6 #define CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_
   7
   8 #include <string>
   9
  10 #include "content/public/browser/browser_message_filter.h"
  11 #include "content/public/common/process_type.h"
  12
  13 namespace tracked_objects {
  14 struct ProcessDataSnapshot;
  15 }
  16
  17 namespace content {
  18
  19 // This class sends and receives profiler messages in the browser process.
  20 class ProfilerMessageFilter : public BrowserMessageFilter {
  21  public:
  22   explicit ProfilerMessageFilter(ProcessType process_type);
  23
  24   // BrowserMessageFilter implementation.
  25   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
  26
  27   // BrowserMessageFilter implementation.
  28   virtual bool OnMessageReceived(const IPC::Message& message,
  29                                  bool* message_was_ok) OVERRIDE;
  30
  31  protected:
  32   virtual ~ProfilerMessageFilter();
  33
  34  private:
  35   // Message handlers.
  36   void OnChildProfilerData(
  37       int sequence_number,
  38       const tracked_objects::ProcessDataSnapshot& profiler_data);
  39
  40 #if defined(USE_TCMALLOC)
  41   void OnTcmallocStats(const std::string& output);
  42 #endif
  43
  44   ProcessType process_type_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(ProfilerMessageFilter);
  47 };
  48
  49 }  // namespace content
  50
  51 #endif  // CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_