1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
// © 2019 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#ifndef __RESTRACE_H__
#define __RESTRACE_H__
#include <_foundation_unicode/utypes.h>
#if U_ENABLE_TRACING
struct UResourceBundle;
U_NAMESPACE_BEGIN
class CharString;
/**
* Instances of this class store information used to trace reads from resource
* bundles when ICU is built with --enable-tracing.
*
* All arguments of type const UResourceBundle*, const char*, and
* const ResourceTracer& are stored as pointers. The caller must retain
* ownership for the lifetime of this ResourceTracer.
*
* Exported as U_COMMON_API for Windows because it is a value field
* in other exported types.
*/
class U_COMMON_API ResourceTracer {
public:
ResourceTracer() :
fResB(nullptr),
fParent(nullptr),
fKey(nullptr),
fIndex(-1) {}
ResourceTracer(const UResourceBundle* resB) :
fResB(resB),
fParent(nullptr),
fKey(nullptr),
fIndex(-1) {}
ResourceTracer(const UResourceBundle* resB, const char* key) :
fResB(resB),
fParent(nullptr),
fKey(key),
fIndex(-1) {}
ResourceTracer(const UResourceBundle* resB, int32_t index) :
fResB(resB),
fParent(nullptr),
fKey(nullptr),
fIndex(index) {}
ResourceTracer(const ResourceTracer& parent, const char* key) :
fResB(nullptr),
fParent(&parent),
fKey(key),
fIndex(-1) {}
ResourceTracer(const ResourceTracer& parent, int32_t index) :
fResB(nullptr),
fParent(&parent),
fKey(nullptr),
fIndex(index) {}
~ResourceTracer();
void trace(const char* type) const;
void traceOpen() const;
/**
* Calls trace() if the resB or parent provided to the constructor was
* non-null; otherwise, does nothing.
*/
void maybeTrace(const char* type) const {
if (fResB || fParent) {
trace(type);
}
}
private:
const UResourceBundle* fResB;
const ResourceTracer* fParent;
const char* fKey;
int32_t fIndex;
CharString& getFilePath(CharString& output, UErrorCode& status) const;
CharString& getResPath(CharString& output, UErrorCode& status) const;
};
/**
* This class provides methods to trace data file reads when ICU is built
* with --enable-tracing.
*/
class FileTracer {
public:
static void traceOpen(const char* path, const char* type, const char* name);
private:
static void traceOpenDataFile(const char* path, const char* type, const char* name);
static void traceOpenResFile(const char* path, const char* name);
};
U_NAMESPACE_END
#else // U_ENABLE_TRACING
U_NAMESPACE_BEGIN
/**
* Default trivial implementation when --enable-tracing is not used.
*/
class U_COMMON_API ResourceTracer {
public:
ResourceTracer() {}
ResourceTracer(const void*) {}
ResourceTracer(const void*, const char*) {}
ResourceTracer(const void*, int32_t) {}
ResourceTracer(const ResourceTracer&, const char*) {}
ResourceTracer(const ResourceTracer&, int32_t) {}
void trace(const char*) const {}
void traceOpen() const {}
void maybeTrace(const char*) const {}
};
/**
* Default trivial implementation when --enable-tracing is not used.
*/
class FileTracer {
public:
static void traceOpen(const char*, const char*, const char*) {}
};
U_NAMESPACE_END
#endif // U_ENABLE_TRACING
#endif //__RESTRACE_H__
|
