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Side by Side Diff: base/files/file_tracing.h

Issue 1549853002: Switch to standard integer types in base/files/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix Created 5 years ago
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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_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
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_
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