webrtc/rtc_base/numerics/histogram_percentile_counter.h
Jonas Olsson a4d873786f Format almost everything.
This CL was generated by running

git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \
grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \
grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \
grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \
grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \
| xargs clang-format -i ; git cl format

Most of these changes are clang-format grouping and reordering includes
differently.

Bug: webrtc:9340
Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051
Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28505}
2019-07-08 13:45:15 +00:00

45 lines
1.5 KiB
C++

/*
* Copyright (c) 2017 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.
*/
#ifndef RTC_BASE_NUMERICS_HISTOGRAM_PERCENTILE_COUNTER_H_
#define RTC_BASE_NUMERICS_HISTOGRAM_PERCENTILE_COUNTER_H_
#include <stddef.h>
#include <stdint.h>
#include <map>
#include <vector>
#include "absl/types/optional.h"
namespace rtc {
// Calculates percentiles on the stream of data. Use |Add| methods to add new
// values. Use |GetPercentile| to get percentile of the currently added values.
class HistogramPercentileCounter {
public:
// Values below |long_tail_boundary| are stored as the histogram in an array.
// Values above - in a map.
explicit HistogramPercentileCounter(uint32_t long_tail_boundary);
~HistogramPercentileCounter();
void Add(uint32_t value);
void Add(uint32_t value, size_t count);
void Add(const HistogramPercentileCounter& other);
// Argument should be from 0 to 1.
absl::optional<uint32_t> GetPercentile(float fraction);
private:
std::vector<size_t> histogram_low_;
std::map<uint32_t, size_t> histogram_high_;
const uint32_t long_tail_boundary_;
size_t total_elements_;
size_t total_elements_low_;
};
} // namespace rtc
#endif // RTC_BASE_NUMERICS_HISTOGRAM_PERCENTILE_COUNTER_H_