| // Copyright 2017 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_UKM_UKM_ROTATION_SCHEDULER_H_ |
| #define COMPONENTS_UKM_UKM_ROTATION_SCHEDULER_H_ |
| |
| #include "base/time/time.h" |
| #include "components/metrics/metrics_rotation_scheduler.h" |
| |
| namespace ukm { |
| |
| // Scheduler to drive a UkmService object's log rotations. |
| class UkmRotationScheduler : public metrics::MetricsRotationScheduler { |
| public: |
| // Creates UkmRotationScheduler object with the given |rotation_callback| |
| // callback to call when log rotation should happen and |interval_callback| |
| // to determine the interval between rotations in steady state. |
| UkmRotationScheduler( |
| const base::RepeatingClosure& rotation_callback, |
| bool fast_startup_for_testing, |
| const base::RepeatingCallback<base::TimeDelta(void)>& interval_callback); |
| |
| UkmRotationScheduler(const UkmRotationScheduler&) = delete; |
| UkmRotationScheduler& operator=(const UkmRotationScheduler&) = delete; |
| |
| ~UkmRotationScheduler() override; |
| |
| private: |
| // Record the init sequence order histogram. |
| void LogMetricsInitSequence(InitSequence sequence) override; |
| }; |
| |
| } // namespace ukm |
| |
| #endif // COMPONENTS_UKM_UKM_ROTATION_SCHEDULER_H_ |