72302cc5e4
Bug: webrtc:42226242 Change-Id: Ib59078d67af20fa44d79d1a9338b1a3ca6e4c6d2 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/354463 Auto-Submit: Björn Terelius <terelius@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42492}
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_base/numerics/event_rate_counter.h"
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#include <algorithm>
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#include <cmath>
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#include "api/units/time_delta.h"
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#include "api/units/timestamp.h"
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namespace webrtc {
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void EventRateCounter::AddEvent(Timestamp event_time) {
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if (first_time_.IsFinite())
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interval_.AddSample(event_time - last_time_);
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first_time_ = std::min(first_time_, event_time);
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last_time_ = std::max(last_time_, event_time);
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event_count_++;
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}
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void EventRateCounter::AddEvents(EventRateCounter other) {
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first_time_ = std::min(first_time_, other.first_time_);
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last_time_ = std::max(last_time_, other.last_time_);
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event_count_ += other.event_count_;
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interval_.AddSamples(other.interval_);
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}
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bool EventRateCounter::IsEmpty() const {
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return first_time_ == last_time_;
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}
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double EventRateCounter::Rate() const {
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if (event_count_ == 0)
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return 0;
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if (event_count_ == 1)
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return NAN;
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return (event_count_ - 1) / (last_time_ - first_time_).seconds<double>();
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}
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TimeDelta EventRateCounter::TotalDuration() const {
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if (first_time_.IsInfinite()) {
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return TimeDelta::Zero();
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}
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return last_time_ - first_time_;
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}
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} // namespace webrtc
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