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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 #ifndef BASE_METRICS_HISTOGRAM_BASE_H_ | 5 #ifndef BASE_METRICS_HISTOGRAM_BASE_H_ |
6 #define BASE_METRICS_HISTOGRAM_BASE_H_ | 6 #define BASE_METRICS_HISTOGRAM_BASE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
| 9 #include <vector> |
9 | 10 |
10 #include "base/atomicops.h" | 11 #include "base/atomicops.h" |
11 #include "base/base_export.h" | 12 #include "base/base_export.h" |
12 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
13 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
14 #include "base/time/time.h" | 15 #include "base/time/time.h" |
15 | 16 |
16 class Pickle; | 17 class Pickle; |
17 class PickleIterator; | 18 class PickleIterator; |
18 | 19 |
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36 SPARSE_HISTOGRAM, | 37 SPARSE_HISTOGRAM, |
37 }; | 38 }; |
38 | 39 |
39 std::string HistogramTypeToString(HistogramType type); | 40 std::string HistogramTypeToString(HistogramType type); |
40 | 41 |
41 // Create or find existing histogram that matches the pickled info. | 42 // Create or find existing histogram that matches the pickled info. |
42 // Returns NULL if the pickled data has problems. | 43 // Returns NULL if the pickled data has problems. |
43 BASE_EXPORT_PRIVATE HistogramBase* DeserializeHistogramInfo( | 44 BASE_EXPORT_PRIVATE HistogramBase* DeserializeHistogramInfo( |
44 PickleIterator* iter); | 45 PickleIterator* iter); |
45 | 46 |
46 // Create or find existing histogram and add the samples from pickle. | |
47 // Silently returns when seeing any data problem in the pickle. | |
48 BASE_EXPORT void DeserializeHistogramAndAddSamples(PickleIterator* iter); | |
49 | |
50 //////////////////////////////////////////////////////////////////////////////// | 47 //////////////////////////////////////////////////////////////////////////////// |
51 | 48 |
52 class BASE_EXPORT HistogramBase { | 49 class BASE_EXPORT HistogramBase { |
53 public: | 50 public: |
54 typedef int Sample; // Used for samples. | 51 typedef int Sample; // Used for samples. |
55 typedef subtle::Atomic32 Count; // Used to count samples. | 52 typedef subtle::Atomic32 Count; // Used to count samples. |
56 | 53 |
57 static const Sample kSampleType_MAX; // INT_MAX | 54 static const Sample kSampleType_MAX; // INT_MAX |
58 | 55 |
59 enum Flags { | 56 enum Flags { |
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163 private: | 160 private: |
164 const std::string histogram_name_; | 161 const std::string histogram_name_; |
165 int32 flags_; | 162 int32 flags_; |
166 | 163 |
167 DISALLOW_COPY_AND_ASSIGN(HistogramBase); | 164 DISALLOW_COPY_AND_ASSIGN(HistogramBase); |
168 }; | 165 }; |
169 | 166 |
170 } // namespace base | 167 } // namespace base |
171 | 168 |
172 #endif // BASE_METRICS_HISTOGRAM_BASE_H_ | 169 #endif // BASE_METRICS_HISTOGRAM_BASE_H_ |
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