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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // SampleVector implements HistogramSamples interface. It is used by all | 5 // SampleVector implements HistogramSamples interface. It is used by all |
6 // Histogram based classes to store samples. | 6 // Histogram based classes to store samples. |
7 | 7 |
8 #ifndef BASE_METRICS_SAMPLE_VECTOR_H_ | 8 #ifndef BASE_METRICS_SAMPLE_VECTOR_H_ |
9 #define BASE_METRICS_SAMPLE_VECTOR_H_ | 9 #define BASE_METRICS_SAMPLE_VECTOR_H_ |
10 | 10 |
11 #include <stddef.h> | 11 #include <stddef.h> |
12 #include <stdint.h> | 12 #include <stdint.h> |
13 | 13 |
| 14 #include <memory> |
14 #include <vector> | 15 #include <vector> |
15 | 16 |
16 #include "base/compiler_specific.h" | 17 #include "base/compiler_specific.h" |
17 #include "base/gtest_prod_util.h" | 18 #include "base/gtest_prod_util.h" |
18 #include "base/macros.h" | 19 #include "base/macros.h" |
19 #include "base/memory/scoped_ptr.h" | |
20 #include "base/metrics/histogram_base.h" | 20 #include "base/metrics/histogram_base.h" |
21 #include "base/metrics/histogram_samples.h" | 21 #include "base/metrics/histogram_samples.h" |
22 | 22 |
23 namespace base { | 23 namespace base { |
24 | 24 |
25 class BucketRanges; | 25 class BucketRanges; |
26 | 26 |
27 class BASE_EXPORT SampleVector : public HistogramSamples { | 27 class BASE_EXPORT SampleVector : public HistogramSamples { |
28 public: | 28 public: |
29 explicit SampleVector(const BucketRanges* bucket_ranges); | 29 explicit SampleVector(const BucketRanges* bucket_ranges); |
30 SampleVector(uint64_t id, const BucketRanges* bucket_ranges); | 30 SampleVector(uint64_t id, const BucketRanges* bucket_ranges); |
31 SampleVector(uint64_t id, | 31 SampleVector(uint64_t id, |
32 HistogramBase::AtomicCount* counts, | 32 HistogramBase::AtomicCount* counts, |
33 size_t counts_size, | 33 size_t counts_size, |
34 Metadata* meta, | 34 Metadata* meta, |
35 const BucketRanges* bucket_ranges); | 35 const BucketRanges* bucket_ranges); |
36 ~SampleVector() override; | 36 ~SampleVector() override; |
37 | 37 |
38 // HistogramSamples implementation: | 38 // HistogramSamples implementation: |
39 void Accumulate(HistogramBase::Sample value, | 39 void Accumulate(HistogramBase::Sample value, |
40 HistogramBase::Count count) override; | 40 HistogramBase::Count count) override; |
41 HistogramBase::Count GetCount(HistogramBase::Sample value) const override; | 41 HistogramBase::Count GetCount(HistogramBase::Sample value) const override; |
42 HistogramBase::Count TotalCount() const override; | 42 HistogramBase::Count TotalCount() const override; |
43 scoped_ptr<SampleCountIterator> Iterator() const override; | 43 std::unique_ptr<SampleCountIterator> Iterator() const override; |
44 | 44 |
45 // Get count of a specific bucket. | 45 // Get count of a specific bucket. |
46 HistogramBase::Count GetCountAtIndex(size_t bucket_index) const; | 46 HistogramBase::Count GetCountAtIndex(size_t bucket_index) const; |
47 | 47 |
48 protected: | 48 protected: |
49 bool AddSubtractImpl( | 49 bool AddSubtractImpl( |
50 SampleCountIterator* iter, | 50 SampleCountIterator* iter, |
51 HistogramSamples::Operator op) override; // |op| is ADD or SUBTRACT. | 51 HistogramSamples::Operator op) override; // |op| is ADD or SUBTRACT. |
52 | 52 |
53 virtual size_t GetBucketIndex(HistogramBase::Sample value) const; | 53 virtual size_t GetBucketIndex(HistogramBase::Sample value) const; |
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96 const HistogramBase::AtomicCount* counts_; | 96 const HistogramBase::AtomicCount* counts_; |
97 size_t counts_size_; | 97 size_t counts_size_; |
98 const BucketRanges* bucket_ranges_; | 98 const BucketRanges* bucket_ranges_; |
99 | 99 |
100 size_t index_; | 100 size_t index_; |
101 }; | 101 }; |
102 | 102 |
103 } // namespace base | 103 } // namespace base |
104 | 104 |
105 #endif // BASE_METRICS_SAMPLE_VECTOR_H_ | 105 #endif // BASE_METRICS_SAMPLE_VECTOR_H_ |
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