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
  12 namespace tracked_objects {
  13 struct ProcessDataSnapshot;
  14 }
  15
  16 namespace content {
  17
  18 // This class sends and receives profiler messages in the browser process.
  19 class ProfilerMessageFilter : public BrowserMessageFilter {
  20  public:
  21   explicit ProfilerMessageFilter(int process_type);
  22
  23   // BrowserMessageFilter implementation.
  24   void OnChannelConnected(int32 peer_pid) override;
  25
  26   // BrowserMessageFilter implementation.
  27   bool OnMessageReceived(const IPC::Message& message) override;
  28
  29  protected:
  30   ~ProfilerMessageFilter() override;
  31
  32  private:
  33   // Message handlers.
  34   void OnChildProfilerData(
  35       int sequence_number,
  36       const tracked_objects::ProcessDataSnapshot& profiler_data);
  37
  38 #if defined(USE_TCMALLOC)
  39   void OnTcmallocStats(const std::string& output);
  40 #endif
  41
  42   int process_type_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(ProfilerMessageFilter);
  45 };
  46
  47 }  // namespace content
  48
  49 #endif  // CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_