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
12 // * Redistributions of source code must retain the above copyright
13 // notice, this list of conditions and the following disclaimer.
14 // * Redistributions in binary form must reproduce the above
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
26 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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28 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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31 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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_
45 #include "glog/log_severity.h"
46 #include "glog/vlog_is_on.h"
48 // Annoying stuff for windows -- makes sure clients can import these functions
49 #ifndef GOOGLE_GLOG_DLL_DECL
50 # if defined(_WIN32) && !defined(__CYGWIN__)
51 # define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
53 # define GOOGLE_GLOG_DLL_DECL
57 // This is similar to LOG(severity) << format... and VLOG(level) << format..,
59 // * it is to be used ONLY by low-level modules that can't use normal LOG()
60 // * it is desiged to be a low-level logger that does not allocate any
61 // memory and does not need any locks, hence:
62 // * it logs straight and ONLY to STDERR w/o buffering
63 // * it uses an explicit format and arguments list
64 // * it will silently chop off really long message strings
66 // RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
67 // RAW_VLOG(3, "status is %i", status);
68 // These will print an almost standard log lines like this to stderr only:
69 // E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
70 // I0821 211317 file.cc:142] RAW: status is 20
71 #define RAW_LOG(severity, ...) \
73 switch (google::severity) { \
75 RAW_LOG_INFO(__VA_ARGS__); \
78 RAW_LOG_WARNING(__VA_ARGS__); \
81 RAW_LOG_ERROR(__VA_ARGS__); \
84 RAW_LOG_FATAL(__VA_ARGS__); \
91 // The following STRIP_LOG testing is performed in the header file so that it's
92 // possible to completely compile out the logging code and the log messages.
94 #define RAW_VLOG(verboselevel, ...) \
96 if (VLOG_IS_ON(verboselevel)) { \
97 RAW_LOG_INFO(__VA_ARGS__); \
101 #define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
102 #endif // STRIP_LOG == 0
105 #define RAW_LOG_INFO(...) google::RawLog__(google::INFO, \
106 __FILE__, __LINE__, __VA_ARGS__)
108 #define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
109 #endif // STRIP_LOG == 0
112 #define RAW_LOG_WARNING(...) google::RawLog__(google::WARNING, \
113 __FILE__, __LINE__, __VA_ARGS__)
115 #define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
116 #endif // STRIP_LOG <= 1
119 #define RAW_LOG_ERROR(...) google::RawLog__(google::ERROR, \
120 __FILE__, __LINE__, __VA_ARGS__)
122 #define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
123 #endif // STRIP_LOG <= 2
126 #define RAW_LOG_FATAL(...) google::RawLog__(google::FATAL, \
127 __FILE__, __LINE__, __VA_ARGS__)
129 #define RAW_LOG_FATAL(...) \
131 google::RawLogStub__(0, __VA_ARGS__); \
134 #endif // STRIP_LOG <= 3
136 // Similar to CHECK(condition) << message,
137 // but for low-level modules: we use only RAW_LOG that does not allocate memory.
138 // We do not want to provide args list here to encourage this usage:
139 // if (!cond) RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
140 // so that the args are not computed when not needed.
141 #define RAW_CHECK(condition, message) \
143 if (!(condition)) { \
144 RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
148 // Debug versions of RAW_LOG and RAW_CHECK
151 #define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
152 #define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
156 #define RAW_DLOG(severity, ...) \
158 RAW_LOG(severity, __VA_ARGS__)
159 #define RAW_DCHECK(condition, message) \
161 RAW_CHECK(condition, message)
165 // Stub log function used to work around for unused variable warnings when
166 // building with STRIP_LOG > 0.
167 static inline void RawLogStub__(int ignored, ...) {
170 // Helper function to implement RAW_LOG and RAW_VLOG
171 // Logs format... at "severity" level, reporting it
172 // as called from file:line.
173 // This does not allocate memory or acquire locks.
174 GOOGLE_GLOG_DLL_DECL void RawLog__(LogSeverity severity,
177 const char* format, ...)
180 // Hack to propagate time information into this module so that
181 // this module does not have to directly call localtime_r(),
182 // which could allocate memory.
183 extern "C" struct ::tm;
184 GOOGLE_GLOG_DLL_DECL void RawLog__SetLastTime(const struct ::tm& t, int usecs);
188 #endif // BASE_RAW_LOGGING_H_