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
|
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// IWYU pragma: private, include "third_party/jni_zero/jni_zero.h"
#ifndef JNI_ZERO_LOGGING_H_
#define JNI_ZERO_LOGGING_H_
#include "third_party/jni_zero/jni_export.h"
#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
#define JNI_ZERO_DCHECK_IS_ON() false
#else
#define JNI_ZERO_DCHECK_IS_ON() true
#endif
// Simplified version of Google's logging. Adapted from perfetto's
// implementation.
namespace jni_zero {
// Constexpr functions to extract basename(__FILE__), e.g.: ../foo/f.c -> f.c .
constexpr const char* StrEnd(const char* s) {
return *s ? StrEnd(s + 1) : s;
}
constexpr const char* BasenameRecursive(const char* s,
const char* begin,
const char* end) {
return (*s == '/' && s < end)
? (s + 1)
: ((s > begin) ? BasenameRecursive(s - 1, begin, end) : s);
}
constexpr const char* Basename(const char* str) {
return BasenameRecursive(StrEnd(str), str, StrEnd(str));
}
enum LogLev { kLogInfo = 0, kLogError, kLogFatal };
struct LogMessageCallbackArgs {
LogLev level;
int line;
const char* filename;
const char* message;
};
using LogMessageCallback = void (*)(LogMessageCallbackArgs);
// This is not thread safe and must be called before using tracing from other
// threads.
JNI_ZERO_COMPONENT_BUILD_EXPORT void SetLogMessageCallback(
LogMessageCallback callback);
JNI_ZERO_COMPONENT_BUILD_EXPORT void LogMessage(LogLev,
const char* fname,
int line,
const char* fmt,
...)
__attribute__((__format__(__printf__, 4, 5)));
#define JNI_ZERO_IMMEDIATE_CRASH() \
do { \
__builtin_trap(); \
__builtin_unreachable(); \
} while (0)
#define JNI_ZERO_XLOG(level, fmt, ...) \
::jni_zero::LogMessage(level, ::jni_zero::Basename(__FILE__), __LINE__, fmt, \
##__VA_ARGS__)
#define JNI_ZERO_ILOG(fmt, ...) \
JNI_ZERO_XLOG(::jni_zero::kLogInfo, fmt, ##__VA_ARGS__)
#define JNI_ZERO_ELOG(fmt, ...) \
JNI_ZERO_XLOG(::jni_zero::kLogError, fmt, ##__VA_ARGS__)
#define JNI_ZERO_FLOG(fmt, ...) \
JNI_ZERO_XLOG(::jni_zero::kLogFatal, fmt, ##__VA_ARGS__)
#define JNI_ZERO_CHECK(x) \
do { \
if (__builtin_expect(!(x), 0)) { \
JNI_ZERO_FLOG("%s", "JNI_ZERO_CHECK(" #x ")"); \
} \
} while (0)
#if JNI_ZERO_DCHECK_IS_ON()
#define JNI_ZERO_DCHECK(x) JNI_ZERO_CHECK(x)
#else
#define JNI_ZERO_DCHECK(x) \
do { \
} while (false && (x))
#endif
} // namespace jni_zero
#endif // JNI_ZERO_LOGGING_H_
|
