chromium/base/timer/lap_timer.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_TIMER_LAP_TIMER_H_
#define BASE_TIMER_LAP_TIMER_H_

#include "base/base_export.h"
#include "base/sequence_checker.h"
#include "base/time/time.h"

namespace base {

// LapTimer is used to calculate average times per "Lap" in perf tests.
// NextLap increments the lap counter, used in counting the per lap averages.
// If you initialize the LapTimer with a non zero |warmup_laps|, it will ignore
// the times for that many laps at the start.
// If you set the |time_limit| then you can use HasTimeLimitExpired() to see if
// the current accumulated time has crossed that threshold, with an optimization
// that it only tests this every |check_interval| laps.
//
// See base/timer/lap_timer_unittest.cc for a usage example.
//
class BASE_EXPORT LapTimer { … };
}  // namespace base

#endif  // BASE_TIMER_LAP_TIMER_H_