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Side by Side Diff: base/metrics/linearhistogram_sample.h

Issue 227873002: Create a histogram serialization mechanism in components/metrics (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 8 months ago
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1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 # ifndef BASE_METRICS_LINEARHISTOGRAM_SAMPLE_H
6 # define BASE_METRICS_LINEARHISTOGRAM_SAMPLE_H
7
8 #include <string>
9
10 #include "base/base_export.h"
11 #include "base/metrics/metric_sample.h"
12
13 namespace base {
14 class BASE_EXPORT LinearHistogramSample: public MetricSample {
15 public:
16 LinearHistogramSample(const std::string& histname, int sample,
17 int max);
18 virtual ~LinearHistogramSample();
19 std::string name();
20 int sample();
21 int max();
22 int Write(int buffer_size, char* buffer);
23 // static
24 static LinearHistogramSample* ReadLinearHistogram(
25 const std::string& serialized_histogram);
26 protected:
27 std::string name_;
28 int max_, sample_;
29 };
30 } // namespace base
31 # endif // BASE_METRICS_LINEARHISTOGRAM_SAMPLE_H
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