50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
#include "rtc_base/numerics/event_rate_counter.h"
|
|
|
|
#include <algorithm>
|
|
|
|
namespace webrtc {
|
|
|
|
void EventRateCounter::AddEvent(Timestamp event_time) {
|
|
if (first_time_.IsFinite())
|
|
interval_.AddSample(event_time - last_time_);
|
|
first_time_ = std::min(first_time_, event_time);
|
|
last_time_ = std::max(last_time_, event_time);
|
|
event_count_++;
|
|
}
|
|
|
|
void EventRateCounter::AddEvents(EventRateCounter other) {
|
|
first_time_ = std::min(first_time_, other.first_time_);
|
|
last_time_ = std::max(last_time_, other.last_time_);
|
|
event_count_ += other.event_count_;
|
|
interval_.AddSamples(other.interval_);
|
|
}
|
|
|
|
bool EventRateCounter::IsEmpty() const {
|
|
return first_time_ == last_time_;
|
|
}
|
|
|
|
double EventRateCounter::Rate() const {
|
|
if (event_count_ == 0)
|
|
return 0;
|
|
if (event_count_ == 1)
|
|
return NAN;
|
|
return (event_count_ - 1) / (last_time_ - first_time_).seconds<double>();
|
|
}
|
|
|
|
TimeDelta EventRateCounter::TotalDuration() const {
|
|
if (first_time_.IsInfinite()) {
|
|
return TimeDelta::Zero();
|
|
}
|
|
return last_time_ - first_time_;
|
|
}
|
|
} // namespace webrtc
|