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714e3cbb48
Bug: webrtc:13579 Change-Id: Ifec66fb6ba9724d18539de7245a358c2d13c7939 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/268547 Reviewed-by: Ivo Creusen <ivoc@webrtc.org> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Commit-Queue: Ali Tofigh <alito@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37573}
57 lines
2 KiB
C++
57 lines
2 KiB
C++
/* Copyright (c) 2018 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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#ifndef MODULES_AUDIO_CODING_NETEQ_EXPAND_UMA_LOGGER_H_
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#define MODULES_AUDIO_CODING_NETEQ_EXPAND_UMA_LOGGER_H_
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#include <stdint.h>
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#include <memory>
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#include <string>
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#include "absl/strings/string_view.h"
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#include "absl/types/optional.h"
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#include "api/neteq/tick_timer.h"
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namespace webrtc {
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// This class is used to periodically log values to a UMA histogram. The caller
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// is expected to update this class with an incremental sample counter which
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// counts expand samples. At the end of each logging period, the class will
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// calculate the fraction of samples that were expand samples during that period
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// and report that in percent. The logging period must be strictly positive.
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// Does not take ownership of tick_timer and the pointer must refer to a valid
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// object that outlives the one constructed.
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class ExpandUmaLogger {
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public:
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ExpandUmaLogger(absl::string_view uma_name,
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int logging_period_s,
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const TickTimer* tick_timer);
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~ExpandUmaLogger();
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ExpandUmaLogger(const ExpandUmaLogger&) = delete;
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ExpandUmaLogger& operator=(const ExpandUmaLogger&) = delete;
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// In this call, value should be an incremental sample counter. The sample
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// rate must be strictly positive.
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void UpdateSampleCounter(uint64_t value, int sample_rate_hz);
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private:
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const std::string uma_name_;
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const int logging_period_s_;
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const TickTimer& tick_timer_;
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std::unique_ptr<TickTimer::Countdown> timer_;
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absl::optional<uint64_t> last_logged_value_;
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uint64_t last_value_ = 0;
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int sample_rate_hz_ = 0;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_CODING_NETEQ_EXPAND_UMA_LOGGER_H_
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