1 // This file is automatically generated from src/glog/raw_logging.h.in
2 // using src/windows/preprocess.sh.
5 // Copyright (c) 2006, Google Inc.
6 // All rights reserved.
8 // Redistribution and use in source and binary forms, with or without
9 // modification, are permitted provided that the following conditions are
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15 // copyright notice, this list of conditions and the following disclaimer
16 // in the documentation and/or other materials provided with the
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20 // this software without specific prior written permission.
22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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25 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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32 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 // Author: Maxim Lifantsev
36 // Thread-safe logging routines that do not allocate any memory or
37 // acquire any locks, and can therefore be used by low-level memory
38 // allocation and synchronization code.
40 #ifndef BASE_RAW_LOGGING_H_
41 #define BASE_RAW_LOGGING_H_
47 #include "glog/log_severity.h"
48 #include "glog/vlog_is_on.h"
50 // Annoying stuff for windows -- makes sure clients can import these functions
51 #ifndef GOOGLE_GLOG_DLL_DECL
52 # if defined(_WIN32) && !defined(__CYGWIN__)
53 # define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
55 # define GOOGLE_GLOG_DLL_DECL
59 // This is similar to LOG(severity) << format... and VLOG(level) << format..,
61 // * it is to be used ONLY by low-level modules that can't use normal LOG()
62 // * it is desiged to be a low-level logger that does not allocate any
63 // memory and does not need any locks, hence:
64 // * it logs straight and ONLY to STDERR w/o buffering
65 // * it uses an explicit format and arguments list
66 // * it will silently chop off really long message strings
68 // RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
69 // RAW_VLOG(3, "status is %i", status);
70 // These will print an almost standard log lines like this to stderr only:
71 // E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
72 // I0821 211317 file.cc:142] RAW: status is 20
73 #define RAW_LOG(severity, ...) \
75 switch (google::GLOG_ ## severity) { \
77 RAW_LOG_INFO(__VA_ARGS__); \
80 RAW_LOG_WARNING(__VA_ARGS__); \
83 RAW_LOG_ERROR(__VA_ARGS__); \
86 RAW_LOG_FATAL(__VA_ARGS__); \
93 // The following STRIP_LOG testing is performed in the header file so that it's
94 // possible to completely compile out the logging code and the log messages.
96 #define RAW_VLOG(verboselevel, ...) \
98 if (VLOG_IS_ON(verboselevel)) { \
99 RAW_LOG_INFO(__VA_ARGS__); \
103 #define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
104 #endif // STRIP_LOG == 0
107 #define RAW_LOG_INFO(...) google::RawLog__(google::GLOG_INFO, \
108 __FILE__, __LINE__, __VA_ARGS__)
110 #define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
111 #endif // STRIP_LOG == 0
114 #define RAW_LOG_WARNING(...) google::RawLog__(google::GLOG_WARNING, \
115 __FILE__, __LINE__, __VA_ARGS__)
117 #define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
118 #endif // STRIP_LOG <= 1
121 #define RAW_LOG_ERROR(...) google::RawLog__(google::GLOG_ERROR, \
122 __FILE__, __LINE__, __VA_ARGS__)
124 #define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
125 #endif // STRIP_LOG <= 2
128 #define RAW_LOG_FATAL(...) google::RawLog__(google::GLOG_FATAL, \
129 __FILE__, __LINE__, __VA_ARGS__)
131 #define RAW_LOG_FATAL(...) \
133 google::RawLogStub__(0, __VA_ARGS__); \
136 #endif // STRIP_LOG <= 3
138 // Similar to CHECK(condition) << message,
139 // but for low-level modules: we use only RAW_LOG that does not allocate memory.
140 // We do not want to provide args list here to encourage this usage:
141 // if (!cond) RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
142 // so that the args are not computed when not needed.
143 #define RAW_CHECK(condition, message) \
145 if (!(condition)) { \
146 RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
150 // Debug versions of RAW_LOG and RAW_CHECK
153 #define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
154 #define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
158 #define RAW_DLOG(severity, ...) \
160 RAW_LOG(severity, __VA_ARGS__)
161 #define RAW_DCHECK(condition, message) \
163 RAW_CHECK(condition, message)
167 // Stub log function used to work around for unused variable warnings when
168 // building with STRIP_LOG > 0.
169 static inline void RawLogStub__(int /* ignored */, ...) {
172 // Helper function to implement RAW_LOG and RAW_VLOG
173 // Logs format... at "severity" level, reporting it
174 // as called from file:line.
175 // This does not allocate memory or acquire locks.
176 GOOGLE_GLOG_DLL_DECL void RawLog__(LogSeverity severity,
179 const char* format, ...)
182 // Hack to propagate time information into this module so that
183 // this module does not have to directly call localtime_r(),
184 // which could allocate memory.
185 GOOGLE_GLOG_DLL_DECL void RawLog__SetLastTime(const struct tm& t, int usecs);
189 #endif // BASE_RAW_LOGGING_H_