OLD | NEW |
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_FILES_FILE_TRACING_H_ | 5 #ifndef BASE_FILES_FILE_TRACING_H_ |
6 #define BASE_FILES_FILE_TRACING_H_ | 6 #define BASE_FILES_FILE_TRACING_H_ |
7 | 7 |
| 8 #include <stdint.h> |
| 9 |
8 #include "base/base_export.h" | 10 #include "base/base_export.h" |
9 #include "base/basictypes.h" | |
10 #include "base/macros.h" | 11 #include "base/macros.h" |
11 | 12 |
12 #define FILE_TRACING_PREFIX "File" | 13 #define FILE_TRACING_PREFIX "File" |
13 | 14 |
14 #define SCOPED_FILE_TRACE_WITH_SIZE(name, size) \ | 15 #define SCOPED_FILE_TRACE_WITH_SIZE(name, size) \ |
15 FileTracing::ScopedTrace scoped_file_trace; \ | 16 FileTracing::ScopedTrace scoped_file_trace; \ |
16 if (FileTracing::IsCategoryEnabled()) \ | 17 if (FileTracing::IsCategoryEnabled()) \ |
17 scoped_file_trace.Initialize(FILE_TRACING_PREFIX "::" name, this, size) | 18 scoped_file_trace.Initialize(FILE_TRACING_PREFIX "::" name, this, size) |
18 | 19 |
19 #define SCOPED_FILE_TRACE(name) SCOPED_FILE_TRACE_WITH_SIZE(name, 0) | 20 #define SCOPED_FILE_TRACE(name) SCOPED_FILE_TRACE_WITH_SIZE(name, 0) |
(...skipping 17 matching lines...) Expand all Loading... |
37 | 38 |
38 // Enables file tracing for |id|. Must be called before recording events. | 39 // Enables file tracing for |id|. Must be called before recording events. |
39 virtual void FileTracingEnable(void* id) = 0; | 40 virtual void FileTracingEnable(void* id) = 0; |
40 | 41 |
41 // Disables file tracing for |id|. | 42 // Disables file tracing for |id|. |
42 virtual void FileTracingDisable(void* id) = 0; | 43 virtual void FileTracingDisable(void* id) = 0; |
43 | 44 |
44 // Begins an event for |id| with |name|. |path| tells where in the directory | 45 // Begins an event for |id| with |name|. |path| tells where in the directory |
45 // structure the event is happening (and may be blank). |size| is the number | 46 // structure the event is happening (and may be blank). |size| is the number |
46 // of bytes involved in the event. | 47 // of bytes involved in the event. |
47 virtual void FileTracingEventBegin( | 48 virtual void FileTracingEventBegin(const char* name, |
48 const char* name, void* id, const FilePath& path, int64 size) = 0; | 49 void* id, |
| 50 const FilePath& path, |
| 51 int64_t size) = 0; |
49 | 52 |
50 // Ends an event for |id| with |name|. | 53 // Ends an event for |id| with |name|. |
51 virtual void FileTracingEventEnd(const char* name, void* id) = 0; | 54 virtual void FileTracingEventEnd(const char* name, void* id) = 0; |
52 }; | 55 }; |
53 | 56 |
54 // Sets a global file tracing provider to query categories and record events. | 57 // Sets a global file tracing provider to query categories and record events. |
55 static void SetProvider(Provider* provider); | 58 static void SetProvider(Provider* provider); |
56 | 59 |
57 // Enables file tracing while in scope. | 60 // Enables file tracing while in scope. |
58 class ScopedEnabler { | 61 class ScopedEnabler { |
59 public: | 62 public: |
60 ScopedEnabler(); | 63 ScopedEnabler(); |
61 ~ScopedEnabler(); | 64 ~ScopedEnabler(); |
62 }; | 65 }; |
63 | 66 |
64 class ScopedTrace { | 67 class ScopedTrace { |
65 public: | 68 public: |
66 ScopedTrace(); | 69 ScopedTrace(); |
67 ~ScopedTrace(); | 70 ~ScopedTrace(); |
68 | 71 |
69 // Called only if the tracing category is enabled. |name| is the name of the | 72 // Called only if the tracing category is enabled. |name| is the name of the |
70 // event to trace (e.g. "Read", "Write") and must have an application | 73 // event to trace (e.g. "Read", "Write") and must have an application |
71 // lifetime (e.g. static or literal). |file| is the file being traced; must | 74 // lifetime (e.g. static or literal). |file| is the file being traced; must |
72 // outlive this class. |size| is the size (in bytes) of this event. | 75 // outlive this class. |size| is the size (in bytes) of this event. |
73 void Initialize(const char* name, File* file, int64 size); | 76 void Initialize(const char* name, File* file, int64_t size); |
74 | 77 |
75 private: | 78 private: |
76 // The ID of this trace. Based on the |file| passed to |Initialize()|. Must | 79 // The ID of this trace. Based on the |file| passed to |Initialize()|. Must |
77 // outlive this class. | 80 // outlive this class. |
78 void* id_; | 81 void* id_; |
79 | 82 |
80 // The name of the event to trace (e.g. "Read", "Write"). Prefixed with | 83 // The name of the event to trace (e.g. "Read", "Write"). Prefixed with |
81 // "File". | 84 // "File". |
82 const char* name_; | 85 const char* name_; |
83 | 86 |
84 DISALLOW_COPY_AND_ASSIGN(ScopedTrace); | 87 DISALLOW_COPY_AND_ASSIGN(ScopedTrace); |
85 }; | 88 }; |
86 | 89 |
87 DISALLOW_COPY_AND_ASSIGN(FileTracing); | 90 DISALLOW_COPY_AND_ASSIGN(FileTracing); |
88 }; | 91 }; |
89 | 92 |
90 } // namespace base | 93 } // namespace base |
91 | 94 |
92 #endif // BASE_FILES_FILE_TRACING_H_ | 95 #endif // BASE_FILES_FILE_TRACING_H_ |
OLD | NEW |