Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef ThreadResponsiveness_h
       7             : #define ThreadResponsiveness_h
       8             : 
       9             : #include "nsISupports.h"
      10             : #include "mozilla/RefPtr.h"
      11             : #include "mozilla/TimeStamp.h"
      12             : 
      13             : class CheckResponsivenessTask;
      14             : 
      15             : // This class should only be used for the main thread.
      16             : class ThreadResponsiveness {
      17             : public:
      18             :   explicit ThreadResponsiveness();
      19             : 
      20             :   ~ThreadResponsiveness();
      21             : 
      22             :   void Update();
      23             : 
      24           0 :   mozilla::TimeDuration GetUnresponsiveDuration(const mozilla::TimeStamp& now) const {
      25           0 :     return now - mLastTracerTime;
      26             :   }
      27             : 
      28           0 :   bool HasData() const {
      29           0 :     return !mLastTracerTime.IsNull();
      30             :   }
      31             : private:
      32             :   RefPtr<CheckResponsivenessTask> mActiveTracerEvent;
      33             :   mozilla::TimeStamp mLastTracerTime;
      34             : };
      35             : 
      36             : #endif
      37             :