chromeos/login_event_recorder.h

   1 // Copyright 2014 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 CHROMEOS_LOGIN_EVENT_RECORDER_H_
   6 #define CHROMEOS_LOGIN_EVENT_RECORDER_H_
   7
   8 #include <string>
   9
  10 #include "base/macros.h"
  11 #include "chromeos/chromeos_export.h"
  12
  13 namespace chromeos {
  14
  15 // LoginEventRecorder records the bootimes of Chrome OS.
  16 // Actual implementation is handled by delegate.
  17 class CHROMEOS_EXPORT LoginEventRecorder {
  18  public:
  19   class Delegate {
  20    public:
  21     virtual void AddLoginTimeMarker(const std::string& marker_name,
  22                                     bool send_to_uma) = 0;
  23   };
  24   LoginEventRecorder();
  25   virtual ~LoginEventRecorder();
  26
  27   static LoginEventRecorder* Get();
  28
  29   void SetDelegate(Delegate* delegate);
  30
  31   // Add a time marker for login. A timeline will be dumped to
  32   // /tmp/login-times-sent after login is done. If |send_to_uma| is true
  33   // the time between this marker and the last will be sent to UMA with
  34   // the identifier BootTime.|marker_name|.
  35   void AddLoginTimeMarker(const std::string& marker_name, bool send_to_uma);
  36
  37  private:
  38   Delegate* delegate_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(LoginEventRecorder);
  41 };
  42
  43 }  // namespace chromeos
  44
  45 #endif  // CHROMEOS_LOGIN_EVENT_RECORDER_H_