#include <userver/logging/log_helper.hpp>

Detailed Description

Stream-like tskv-formatted log message builder.

Users can add LogHelper& operator<<(LogHelper&, ) overloads to use a faster localeless logging, rather than outputting data through the ostream operator.

Definition at line 75 of file log_helper.hpp.

Public Member Functions
	LogHelper (LoggerRef logger, Level level, LogClass log_class=LogClass::kLog, const utils::impl::SourceLocation &location=utils::impl::SourceLocation::Current()) noexcept
	Constructs LogHelper with span logging.

	LogHelper (const LoggerPtr &logger, Level level, LogClass log_class=LogClass::kLog, const utils::impl::SourceLocation &location=utils::impl::SourceLocation::Current()) noexcept
	Constructs LogHelper with span logging.

	LogHelper (LogHelper &&)=delete

	LogHelper (const LogHelper &)=delete

LogHelper &	operator= (LogHelper &&)=delete

LogHelper &	operator= (const LogHelper &)=delete

LogHelper &	AsLvalue () noexcept

bool	IsLimitReached () const noexcept

template<typename T>
LogHelper &	operator<< (const T &value)

LogHelper &	operator<< (char value) noexcept

LogHelper &	operator<< (std::string_view value) noexcept

LogHelper &	operator<< (float value) noexcept

LogHelper &	operator<< (double value) noexcept

LogHelper &	operator<< (long double value) noexcept

LogHelper &	operator<< (unsigned long long value) noexcept

LogHelper &	operator<< (long long value) noexcept

LogHelper &	operator<< (bool value) noexcept

LogHelper &	operator<< (const std::exception &value) noexcept

LogHelper &	operator<< (const LogExtra &extra) noexcept
	Extends internal LogExtra.

LogHelper &	operator<< (LogExtra &&extra) noexcept
	Extends internal LogExtra.

LogHelper &	operator<< (Hex hex) noexcept

LogHelper &	operator<< (HexShort hex) noexcept

LogHelper &	operator<< (Quoted value) noexcept

LogHelper &	PutTag (std::string_view key, const LogExtra::Value &value) noexcept

LogHelper &	PutSwTag (std::string_view key, std::string_view value) noexcept

Constructor & Destructor Documentation

◆ LogHelper() [1/2]

logging::LogHelper::LogHelper	(	LoggerRef	logger,
		Level	level,
		LogClass	log_class = LogClass::kLog,
		const utils::impl::SourceLocation &	location = utils::impl::SourceLocation::Current() )

noexcept

Constructs LogHelper with span logging.

Parameters

logger	to log to
level	message log level
log_class	whether this LogHelper will be used to write a log record or a span
location	source location that will be written to logs

◆ LogHelper() [2/2]

logging::LogHelper::LogHelper	(	const LoggerPtr &	logger,
		Level	level,
		LogClass	log_class = LogClass::kLog,
		const utils::impl::SourceLocation &	location = utils::impl::SourceLocation::Current() )

noexcept

Constructs LogHelper with span logging.

Parameters

logger	to log to (logging to nullptr does not output messages)
level	message log level
log_class	whether this LogHelper will be used to write a log record or a span
location	source location that will be written to logs

Member Function Documentation

◆ AsLvalue()

LogHelper & logging::LogHelper::AsLvalue ( )

inlinenoexcept

Definition at line 109 of file log_helper.hpp.

◆ operator<<()

template<typename T>

LogHelper & logging::LogHelper::operator<< ( const T & value )

inline

Definition at line 114 of file log_helper.hpp.

The documentation for this class was generated from the following file:

userver/logging/log_helper.hpp