/usr/include/google/protobuf/stubs/logging.h is in libprotobuf-dev 3.0.0-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// 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.
#ifndef GOOGLE_PROTOBUF_STUBS_LOGGING_H_
#define GOOGLE_PROTOBUF_STUBS_LOGGING_H_
#include <google/protobuf/stubs/macros.h>
#include <google/protobuf/stubs/port.h>
// ===================================================================
// emulates google3/base/logging.h
namespace google {
namespace protobuf {
enum LogLevel {
LOGLEVEL_INFO, // Informational. This is never actually used by
// libprotobuf.
LOGLEVEL_WARNING, // Warns about issues that, although not technically a
// problem now, could cause problems in the future. For
// example, a // warning will be printed when parsing a
// message that is near the message size limit.
LOGLEVEL_ERROR, // An error occurred which should never happen during
// normal use.
LOGLEVEL_FATAL, // An error occurred from which the library cannot
// recover. This usually indicates a programming error
// in the code which calls the library, especially when
// compiled in debug mode.
#ifdef NDEBUG
LOGLEVEL_DFATAL = LOGLEVEL_ERROR
#else
LOGLEVEL_DFATAL = LOGLEVEL_FATAL
#endif
};
class StringPiece;
namespace util {
class Status;
}
class uint128;
namespace internal {
class LogFinisher;
class LIBPROTOBUF_EXPORT LogMessage {
public:
LogMessage(LogLevel level, const char* filename, int line);
~LogMessage();
LogMessage& operator<<(const std::string& value);
LogMessage& operator<<(const char* value);
LogMessage& operator<<(char value);
LogMessage& operator<<(int value);
LogMessage& operator<<(uint value);
LogMessage& operator<<(long value);
LogMessage& operator<<(unsigned long value);
LogMessage& operator<<(long long value);
LogMessage& operator<<(unsigned long long value);
LogMessage& operator<<(double value);
LogMessage& operator<<(void* value);
LogMessage& operator<<(const StringPiece& value);
LogMessage& operator<<(const ::google::protobuf::util::Status& status);
LogMessage& operator<<(const uint128& value);
private:
friend class LogFinisher;
void Finish();
LogLevel level_;
const char* filename_;
int line_;
std::string message_;
};
// Used to make the entire "LOG(BLAH) << etc." expression have a void return
// type and print a newline after each message.
class LIBPROTOBUF_EXPORT LogFinisher {
public:
void operator=(LogMessage& other);
};
template<typename T>
bool IsOk(T status) { return status.ok(); }
template<>
inline bool IsOk(bool status) { return status; }
} // namespace internal
// Undef everything in case we're being mixed with some other Google library
// which already defined them itself. Presumably all Google libraries will
// support the same syntax for these so it should not be a big deal if they
// end up using our definitions instead.
#undef GOOGLE_LOG
#undef GOOGLE_LOG_IF
#undef GOOGLE_CHECK
#undef GOOGLE_CHECK_OK
#undef GOOGLE_CHECK_EQ
#undef GOOGLE_CHECK_NE
#undef GOOGLE_CHECK_LT
#undef GOOGLE_CHECK_LE
#undef GOOGLE_CHECK_GT
#undef GOOGLE_CHECK_GE
#undef GOOGLE_CHECK_NOTNULL
#undef GOOGLE_DLOG
#undef GOOGLE_DCHECK
#undef GOOGLE_DCHECK_OK
#undef GOOGLE_DCHECK_EQ
#undef GOOGLE_DCHECK_NE
#undef GOOGLE_DCHECK_LT
#undef GOOGLE_DCHECK_LE
#undef GOOGLE_DCHECK_GT
#undef GOOGLE_DCHECK_GE
#define GOOGLE_LOG(LEVEL) \
::google::protobuf::internal::LogFinisher() = \
::google::protobuf::internal::LogMessage( \
::google::protobuf::LOGLEVEL_##LEVEL, __FILE__, __LINE__)
#define GOOGLE_LOG_IF(LEVEL, CONDITION) \
!(CONDITION) ? (void)0 : GOOGLE_LOG(LEVEL)
#define GOOGLE_CHECK(EXPRESSION) \
GOOGLE_LOG_IF(FATAL, !(EXPRESSION)) << "CHECK failed: " #EXPRESSION ": "
#define GOOGLE_CHECK_OK(A) GOOGLE_CHECK(::google::protobuf::internal::IsOk(A))
#define GOOGLE_CHECK_EQ(A, B) GOOGLE_CHECK((A) == (B))
#define GOOGLE_CHECK_NE(A, B) GOOGLE_CHECK((A) != (B))
#define GOOGLE_CHECK_LT(A, B) GOOGLE_CHECK((A) < (B))
#define GOOGLE_CHECK_LE(A, B) GOOGLE_CHECK((A) <= (B))
#define GOOGLE_CHECK_GT(A, B) GOOGLE_CHECK((A) > (B))
#define GOOGLE_CHECK_GE(A, B) GOOGLE_CHECK((A) >= (B))
namespace internal {
template<typename T>
T* CheckNotNull(const char* /* file */, int /* line */,
const char* name, T* val) {
if (val == NULL) {
GOOGLE_LOG(FATAL) << name;
}
return val;
}
} // namespace internal
#define GOOGLE_CHECK_NOTNULL(A) \
::google::protobuf::internal::CheckNotNull(\
__FILE__, __LINE__, "'" #A "' must not be NULL", (A))
#ifdef NDEBUG
#define GOOGLE_DLOG(LEVEL) GOOGLE_LOG_IF(LEVEL, false)
#define GOOGLE_DCHECK(EXPRESSION) while(false) GOOGLE_CHECK(EXPRESSION)
#define GOOGLE_DCHECK_OK(E) GOOGLE_DCHECK(::google::protobuf::internal::IsOk(E))
#define GOOGLE_DCHECK_EQ(A, B) GOOGLE_DCHECK((A) == (B))
#define GOOGLE_DCHECK_NE(A, B) GOOGLE_DCHECK((A) != (B))
#define GOOGLE_DCHECK_LT(A, B) GOOGLE_DCHECK((A) < (B))
#define GOOGLE_DCHECK_LE(A, B) GOOGLE_DCHECK((A) <= (B))
#define GOOGLE_DCHECK_GT(A, B) GOOGLE_DCHECK((A) > (B))
#define GOOGLE_DCHECK_GE(A, B) GOOGLE_DCHECK((A) >= (B))
#else // NDEBUG
#define GOOGLE_DLOG GOOGLE_LOG
#define GOOGLE_DCHECK GOOGLE_CHECK
#define GOOGLE_DCHECK_OK GOOGLE_CHECK_OK
#define GOOGLE_DCHECK_EQ GOOGLE_CHECK_EQ
#define GOOGLE_DCHECK_NE GOOGLE_CHECK_NE
#define GOOGLE_DCHECK_LT GOOGLE_CHECK_LT
#define GOOGLE_DCHECK_LE GOOGLE_CHECK_LE
#define GOOGLE_DCHECK_GT GOOGLE_CHECK_GT
#define GOOGLE_DCHECK_GE GOOGLE_CHECK_GE
#endif // !NDEBUG
typedef void LogHandler(LogLevel level, const char* filename, int line,
const std::string& message);
// The protobuf library sometimes writes warning and error messages to
// stderr. These messages are primarily useful for developers, but may
// also help end users figure out a problem. If you would prefer that
// these messages be sent somewhere other than stderr, call SetLogHandler()
// to set your own handler. This returns the old handler. Set the handler
// to NULL to ignore log messages (but see also LogSilencer, below).
//
// Obviously, SetLogHandler is not thread-safe. You should only call it
// at initialization time, and probably not from library code. If you
// simply want to suppress log messages temporarily (e.g. because you
// have some code that tends to trigger them frequently and you know
// the warnings are not important to you), use the LogSilencer class
// below.
LIBPROTOBUF_EXPORT LogHandler* SetLogHandler(LogHandler* new_func);
// Create a LogSilencer if you want to temporarily suppress all log
// messages. As long as any LogSilencer objects exist, non-fatal
// log messages will be discarded (the current LogHandler will *not*
// be called). Constructing a LogSilencer is thread-safe. You may
// accidentally suppress log messages occurring in another thread, but
// since messages are generally for debugging purposes only, this isn't
// a big deal. If you want to intercept log messages, use SetLogHandler().
class LIBPROTOBUF_EXPORT LogSilencer {
public:
LogSilencer();
~LogSilencer();
};
} // namespace protobuf
} // namespace google
#endif // GOOGLE_PROTOBUF_STUBS_LOGGING_H_
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