logging.h File Reference

Logging component for TDB. More...

#include "utils/misc.h"
#include <iostream>
#include <absl/base/log_severity.h>
#include <absl/strings/str_format.h>

Go to the source code of this file.

Classes
class	taco::TDBError

Namespaces
	taco

Macros
#define	LOG(level, ...)
	LOG(LogSeverity level, const char *fmt, ...) More...

Functions
void	taco::LogError (LogSeverity severity, std::string &&msg)
	Logs a message (which may not be an error despite what the name suggests). More...
void	taco::SetLogOutput (std::ostream *log_out)
	Sets the output stream where the log messages should be printed to. More...
void	taco::RestoreLogOutput ()
	Restores the log output stream to std::cerr. More...
void	taco::SetLogPrintMinSeverity (LogSeverity min_severity)
	Sets the minimum severity level of a log message to be printed. More...
void	taco::DisableLogPrint ()
	Disable all log message printing. More...
void	taco::SetSecondaryLogOutput (std::ostream *log_out, LogSeverity min_severity)
	Sets the secondary output stream where logs messages additionally prints with at least the specified severity. More...
void	taco::ClearSecondaryLogOutput ()
	Clears the secondary output stream where logs messages additionally prints. More...

Variables
constexpr LogSeverity	taco::kInfo = LogSeverity::kInfo
constexpr LogSeverity	taco::kWarning = LogSeverity::kWarning
constexpr LogSeverity	taco::kError = LogSeverity::kError
constexpr LogSeverity	taco::kFatal = LogSeverity::kFatal
constexpr const size_t	taco::log_msg_buf_size = 8192
constexpr const size_t	taco::log_msg_max_len = log_msg_buf_size - 12

Detailed Description

Logging component for TDB.

This file does not include tdb.h at the beginning as it is always included into the project indirectly from base/tdb_base.h.

This file does not have a header guard intentionally. This must be included indirectly from base/tdb_base.h. Any definition in this file will be put in namespace taco.

Macro Definition Documentation

LOG

#define LOG	(		level,
			...
	)

Value:

    do { \
        ::taco::LogError(level, absl::StrFormat("[%s] " \
            CAR(__VA_ARGS__), \
            absl::LogSeverityName(level) \
            IF_NONEMPTY_COMMA(CADR(__VA_ARGS__), ) CDR(__VA_ARGS__))); \
    } while (0)

LOG(LogSeverity level, const char *fmt, ...)

Note: fmt must be a string literal or an absl::string_view. The level variable is double evaluated.