OLD | NEW |
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 #ifndef BASE_METRICS_SPARSE_HISTOGRAM_H_ | 5 #ifndef BASE_METRICS_SPARSE_HISTOGRAM_H_ |
6 #define BASE_METRICS_SPARSE_HISTOGRAM_H_ | 6 #define BASE_METRICS_SPARSE_HISTOGRAM_H_ |
7 | 7 |
| 8 #include <stddef.h> |
| 9 #include <stdint.h> |
| 10 |
8 #include <map> | 11 #include <map> |
9 #include <string> | 12 #include <string> |
10 | 13 |
11 #include "base/base_export.h" | 14 #include "base/base_export.h" |
12 #include "base/basictypes.h" | |
13 #include "base/compiler_specific.h" | 15 #include "base/compiler_specific.h" |
14 #include "base/logging.h" | 16 #include "base/logging.h" |
| 17 #include "base/macros.h" |
15 #include "base/memory/scoped_ptr.h" | 18 #include "base/memory/scoped_ptr.h" |
16 #include "base/metrics/histogram_base.h" | 19 #include "base/metrics/histogram_base.h" |
17 #include "base/metrics/sample_map.h" | 20 #include "base/metrics/sample_map.h" |
18 #include "base/synchronization/lock.h" | 21 #include "base/synchronization/lock.h" |
19 | 22 |
20 namespace base { | 23 namespace base { |
21 | 24 |
22 #define UMA_HISTOGRAM_SPARSE_SLOWLY(name, sample) \ | 25 #define UMA_HISTOGRAM_SPARSE_SLOWLY(name, sample) \ |
23 do { \ | 26 do { \ |
24 base::HistogramBase* histogram = base::SparseHistogram::FactoryGet( \ | 27 base::HistogramBase* histogram = base::SparseHistogram::FactoryGet( \ |
25 name, base::HistogramBase::kUmaTargetedHistogramFlag); \ | 28 name, base::HistogramBase::kUmaTargetedHistogramFlag); \ |
26 histogram->Add(sample); \ | 29 histogram->Add(sample); \ |
27 } while (0) | 30 } while (0) |
28 | 31 |
29 class HistogramSamples; | 32 class HistogramSamples; |
30 | 33 |
31 class BASE_EXPORT SparseHistogram : public HistogramBase { | 34 class BASE_EXPORT SparseHistogram : public HistogramBase { |
32 public: | 35 public: |
33 // If there's one with same name, return the existing one. If not, create a | 36 // If there's one with same name, return the existing one. If not, create a |
34 // new one. | 37 // new one. |
35 static HistogramBase* FactoryGet(const std::string& name, int32 flags); | 38 static HistogramBase* FactoryGet(const std::string& name, int32_t flags); |
36 | 39 |
37 ~SparseHistogram() override; | 40 ~SparseHistogram() override; |
38 | 41 |
39 // HistogramBase implementation: | 42 // HistogramBase implementation: |
40 uint64_t name_hash() const override; | 43 uint64_t name_hash() const override; |
41 HistogramType GetHistogramType() const override; | 44 HistogramType GetHistogramType() const override; |
42 bool HasConstructionArguments(Sample expected_minimum, | 45 bool HasConstructionArguments(Sample expected_minimum, |
43 Sample expected_maximum, | 46 Sample expected_maximum, |
44 size_t expected_bucket_count) const override; | 47 size_t expected_bucket_count) const override; |
45 void Add(Sample value) override; | 48 void Add(Sample value) override; |
(...skipping 11 matching lines...) Expand all Loading... |
57 private: | 60 private: |
58 // Clients should always use FactoryGet to create SparseHistogram. | 61 // Clients should always use FactoryGet to create SparseHistogram. |
59 explicit SparseHistogram(const std::string& name); | 62 explicit SparseHistogram(const std::string& name); |
60 | 63 |
61 friend BASE_EXPORT HistogramBase* DeserializeHistogramInfo( | 64 friend BASE_EXPORT HistogramBase* DeserializeHistogramInfo( |
62 base::PickleIterator* iter); | 65 base::PickleIterator* iter); |
63 static HistogramBase* DeserializeInfoImpl(base::PickleIterator* iter); | 66 static HistogramBase* DeserializeInfoImpl(base::PickleIterator* iter); |
64 | 67 |
65 void GetParameters(DictionaryValue* params) const override; | 68 void GetParameters(DictionaryValue* params) const override; |
66 void GetCountAndBucketData(Count* count, | 69 void GetCountAndBucketData(Count* count, |
67 int64* sum, | 70 int64_t* sum, |
68 ListValue* buckets) const override; | 71 ListValue* buckets) const override; |
69 | 72 |
70 // Helpers for emitting Ascii graphic. Each method appends data to output. | 73 // Helpers for emitting Ascii graphic. Each method appends data to output. |
71 void WriteAsciiImpl(bool graph_it, | 74 void WriteAsciiImpl(bool graph_it, |
72 const std::string& newline, | 75 const std::string& newline, |
73 std::string* output) const; | 76 std::string* output) const; |
74 | 77 |
75 // Write a common header message describing this histogram. | 78 // Write a common header message describing this histogram. |
76 void WriteAsciiHeader(const Count total_count, | 79 void WriteAsciiHeader(const Count total_count, |
77 std::string* output) const; | 80 std::string* output) const; |
78 | 81 |
79 // For constuctor calling. | 82 // For constuctor calling. |
80 friend class SparseHistogramTest; | 83 friend class SparseHistogramTest; |
81 | 84 |
82 // Protects access to |samples_|. | 85 // Protects access to |samples_|. |
83 mutable base::Lock lock_; | 86 mutable base::Lock lock_; |
84 | 87 |
85 SampleMap samples_; | 88 SampleMap samples_; |
86 | 89 |
87 DISALLOW_COPY_AND_ASSIGN(SparseHistogram); | 90 DISALLOW_COPY_AND_ASSIGN(SparseHistogram); |
88 }; | 91 }; |
89 | 92 |
90 } // namespace base | 93 } // namespace base |
91 | 94 |
92 #endif // BASE_METRICS_SPARSE_HISTOGRAM_H_ | 95 #endif // BASE_METRICS_SPARSE_HISTOGRAM_H_ |
OLD | NEW |