58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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* Copyright (c) 2016 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 WEBRTC_SYSTEM_WRAPPERS_INCLUDE_METRICS_DEFAULT_H_
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#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_METRICS_DEFAULT_H_
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#include <map>
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#include <memory>
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#include <string>
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namespace webrtc {
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namespace metrics {
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struct SampleInfo {
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SampleInfo(const std::string& name, int min, int max, size_t bucket_count);
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~SampleInfo();
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const std::string name;
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const int min;
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const int max;
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const size_t bucket_count;
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std::map<int, int> samples; // <value, # of events>
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};
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// Enables collection of samples.
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// This method should be called before any other call into webrtc.
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void Enable();
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// Gets histograms and clears all samples.
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void GetAndReset(
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std::map<std::string, std::unique_ptr<SampleInfo>>* histograms);
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// Functions below are mainly for testing.
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// Clears all samples.
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void Reset();
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// Returns the number of times the |sample| has been added to the histogram.
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int NumEvents(const std::string& name, int sample);
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// Returns the total number of added samples to the histogram.
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int NumSamples(const std::string& name);
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// Returns the minimum sample value (or -1 if the histogram has no samples).
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int MinSample(const std::string& name);
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} // namespace metrics
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} // namespace webrtc
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#endif // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_METRICS_DEFAULT_H_
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