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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_TRACE_EVENT_TRACE_EVENT_MEMORY_OVERHEAD_H_ | 5 #ifndef BASE_TRACE_EVENT_TRACE_EVENT_MEMORY_OVERHEAD_H_ |
6 #define BASE_TRACE_EVENT_TRACE_EVENT_MEMORY_OVERHEAD_H_ | 6 #define BASE_TRACE_EVENT_TRACE_EVENT_MEMORY_OVERHEAD_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/containers/hash_tables.h" | 9 #include "base/containers/hash_tables.h" |
10 #include "base/containers/small_map.h" | 10 #include "base/containers/small_map.h" |
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36 | 36 |
37 // Specialized profiling functions for commonly used object types. | 37 // Specialized profiling functions for commonly used object types. |
38 void AddString(const std::string& str); | 38 void AddString(const std::string& str); |
39 void AddValue(const Value& value); | 39 void AddValue(const Value& value); |
40 void AddRefCountedString(const RefCountedString& str); | 40 void AddRefCountedString(const RefCountedString& str); |
41 | 41 |
42 // Call this after all the Add* methods above to account the memory used by | 42 // Call this after all the Add* methods above to account the memory used by |
43 // this TraceEventMemoryOverhead instance itself. | 43 // this TraceEventMemoryOverhead instance itself. |
44 void AddSelf(); | 44 void AddSelf(); |
45 | 45 |
46 // Retrieves the count, that is, the count of Add*(|object_type|, ...) calls. | |
47 size_t GetCount(const char* object_type) const; | |
48 | |
49 // Adds up and merges all the values from |other| to this instance. | 46 // Adds up and merges all the values from |other| to this instance. |
50 void Update(const TraceEventMemoryOverhead& other); | 47 void Update(const TraceEventMemoryOverhead& other); |
51 | 48 |
52 void DumpInto(const char* base_name, ProcessMemoryDump* pmd) const; | 49 void DumpInto(const char* base_name, ProcessMemoryDump* pmd) const; |
53 | 50 |
54 private: | 51 private: |
55 struct ObjectCountAndSize { | 52 struct ObjectCountAndSize { |
56 size_t count; | 53 size_t count; |
57 size_t allocated_size_in_bytes; | 54 size_t allocated_size_in_bytes; |
58 size_t resident_size_in_bytes; | 55 size_t resident_size_in_bytes; |
59 }; | 56 }; |
60 using map_type = SmallMap<hash_map<const char*, ObjectCountAndSize>, 16>; | 57 using map_type = SmallMap<hash_map<const char*, ObjectCountAndSize>, 16>; |
61 map_type allocated_objects_; | 58 map_type allocated_objects_; |
62 | 59 |
63 void AddOrCreateInternal(const char* object_type, | 60 void AddOrCreateInternal(const char* object_type, |
64 size_t count, | 61 size_t count, |
65 size_t allocated_size_in_bytes, | 62 size_t allocated_size_in_bytes, |
66 size_t resident_size_in_bytes); | 63 size_t resident_size_in_bytes); |
67 | 64 |
68 DISALLOW_COPY_AND_ASSIGN(TraceEventMemoryOverhead); | 65 DISALLOW_COPY_AND_ASSIGN(TraceEventMemoryOverhead); |
69 }; | 66 }; |
70 | 67 |
71 } // namespace trace_event | 68 } // namespace trace_event |
72 } // namespace base | 69 } // namespace base |
73 | 70 |
74 #endif // BASE_TRACE_EVENT_TRACE_EVENT_MEMORY_OVERHEAD_H_ | 71 #endif // BASE_TRACE_EVENT_TRACE_EVENT_MEMORY_OVERHEAD_H_ |
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