Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef mozilla_dom_timeoutbudgetmanager_h
       8             : #define mozilla_dom_timeoutbudgetmanager_h
       9             : 
      10             : #include "mozilla/Telemetry.h"
      11             : #include "mozilla/TimeStamp.h"
      12             : 
      13             : namespace mozilla {
      14             : namespace dom {
      15             : 
      16             : class Timeout;
      17             : 
      18             : class TimeoutBudgetManager
      19             : {
      20             : public:
      21             :   static TimeoutBudgetManager& Get();
      22             :   void StartRecording(const TimeStamp& aNow);
      23             :   void StopRecording();
      24             :   TimeDuration RecordExecution(const TimeStamp& aNow,
      25             :                                const Timeout* aTimeout,
      26             :                                bool aIsBackground);
      27             :   void MaybeCollectTelemetry(const TimeStamp& aNow);
      28             : private:
      29           1 :   TimeoutBudgetManager() : mLastCollection(TimeStamp::Now()) {}
      30           1 :   struct TelemetryData
      31             :   {
      32             :     TimeDuration mForegroundTracking;
      33             :     TimeDuration mForegroundNonTracking;
      34             :     TimeDuration mBackgroundTracking;
      35             :     TimeDuration mBackgroundNonTracking;
      36             :   };
      37             : 
      38             :   void Accumulate(Telemetry::HistogramID aId, const TimeDuration& aSample);
      39             : 
      40             :   TelemetryData mTelemetryData;
      41             :   TimeStamp mStart;
      42             :   TimeStamp mLastCollection;
      43             : };
      44             : 
      45             : } // namespace dom
      46             : } // namespace mozilla
      47             : 
      48             : #endif // mozilla_dom_timeoutbudgetmanager_h