/usr/include/glog/raw_logging.h is in libgoogle-glog-dev 0.3.4-0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | // Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Maxim Lifantsev
//
// Thread-safe logging routines that do not allocate any memory or
// acquire any locks, and can therefore be used by low-level memory
// allocation and synchronization code.
#ifndef BASE_RAW_LOGGING_H_
#define BASE_RAW_LOGGING_H_
#include <time.h>
namespace google {
#include "glog/log_severity.h"
#include "glog/vlog_is_on.h"
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
// This is similar to LOG(severity) << format... and VLOG(level) << format..,
// but
// * it is to be used ONLY by low-level modules that can't use normal LOG()
// * it is desiged to be a low-level logger that does not allocate any
// memory and does not need any locks, hence:
// * it logs straight and ONLY to STDERR w/o buffering
// * it uses an explicit format and arguments list
// * it will silently chop off really long message strings
// Usage example:
// RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
// RAW_VLOG(3, "status is %i", status);
// These will print an almost standard log lines like this to stderr only:
// E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
// I0821 211317 file.cc:142] RAW: status is 20
#define RAW_LOG(severity, ...) \
do { \
switch (google::GLOG_ ## severity) { \
case 0: \
RAW_LOG_INFO(__VA_ARGS__); \
break; \
case 1: \
RAW_LOG_WARNING(__VA_ARGS__); \
break; \
case 2: \
RAW_LOG_ERROR(__VA_ARGS__); \
break; \
case 3: \
RAW_LOG_FATAL(__VA_ARGS__); \
break; \
default: \
break; \
} \
} while (0)
// The following STRIP_LOG testing is performed in the header file so that it's
// possible to completely compile out the logging code and the log messages.
#if STRIP_LOG == 0
#define RAW_VLOG(verboselevel, ...) \
do { \
if (VLOG_IS_ON(verboselevel)) { \
RAW_LOG_INFO(__VA_ARGS__); \
} \
} while (0)
#else
#define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG == 0
#if STRIP_LOG == 0
#define RAW_LOG_INFO(...) google::RawLog__(google::GLOG_INFO, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG == 0
#if STRIP_LOG <= 1
#define RAW_LOG_WARNING(...) google::RawLog__(google::GLOG_WARNING, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG <= 1
#if STRIP_LOG <= 2
#define RAW_LOG_ERROR(...) google::RawLog__(google::GLOG_ERROR, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG <= 2
#if STRIP_LOG <= 3
#define RAW_LOG_FATAL(...) google::RawLog__(google::GLOG_FATAL, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_FATAL(...) \
do { \
google::RawLogStub__(0, __VA_ARGS__); \
exit(1); \
} while (0)
#endif // STRIP_LOG <= 3
// Similar to CHECK(condition) << message,
// but for low-level modules: we use only RAW_LOG that does not allocate memory.
// We do not want to provide args list here to encourage this usage:
// if (!cond) RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
// so that the args are not computed when not needed.
#define RAW_CHECK(condition, message) \
do { \
if (!(condition)) { \
RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
} \
} while (0)
// Debug versions of RAW_LOG and RAW_CHECK
#ifndef NDEBUG
#define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
#define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
#else // NDEBUG
#define RAW_DLOG(severity, ...) \
while (false) \
RAW_LOG(severity, __VA_ARGS__)
#define RAW_DCHECK(condition, message) \
while (false) \
RAW_CHECK(condition, message)
#endif // NDEBUG
// Stub log function used to work around for unused variable warnings when
// building with STRIP_LOG > 0.
static inline void RawLogStub__(int /* ignored */, ...) {
}
// Helper function to implement RAW_LOG and RAW_VLOG
// Logs format... at "severity" level, reporting it
// as called from file:line.
// This does not allocate memory or acquire locks.
GOOGLE_GLOG_DLL_DECL void RawLog__(LogSeverity severity,
const char* file,
int line,
const char* format, ...)
__attribute__((__format__ (__printf__, 4, 5)));
// Hack to propagate time information into this module so that
// this module does not have to directly call localtime_r(),
// which could allocate memory.
GOOGLE_GLOG_DLL_DECL void RawLog__SetLastTime(const struct tm& t, int usecs);
}
#endif // BASE_RAW_LOGGING_H_
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