Hermes C++ API Reference

class Logger

Collaboration diagram for Hermes::Logger:

Public Types

enum class Level

Values:

enumerator Trace

enumerator Debug

enumerator Info

enumerator Warn

enumerator Error

enumerator Critical

enumerator Off

Public Functions

template<typename ...Args>
inline void log_with_location(const std::source_location &loc, Level level, std::string_view fmt, Args&&... args)

Public Static Functions

template<typename ...Args>
static inline void log(Level level, std::string_view fmt, Args&&... args)

template<typename ...Args>
static inline void log(const std::source_location &loc, Level level, std::string_view fmt, Args&&... args)

static void add_sink(std::shared_ptr<Sink> sink)

static void set_level(Level level)

static void clear_sinks_for_testing()

Private Functions

Logger() = default

void dispatch(Level level, std::string_view message, const std::source_location &loc)

Private Members

std::vector<std::shared_ptr<Sink>> sinks

std::mutex sinks_mutex

std::atomic<Level> current_level = {Level::Info}

Private Static Functions

static Logger &instance()

class Sink

Inheritance diagram for Hermes::Logger::Sink:

Collaboration diagram for Hermes::Logger::Sink:

Subclassed by ConsoleSink

Public Functions

virtual ~Sink() = default

virtual void log(Level level, std::string_view message, const std::source_location &loc) = 0

virtual void flush() = 0

class ConsoleSink : public Logger::Sink

Inheritance diagram for Hermes::ConsoleSink:

Collaboration diagram for Hermes::ConsoleSink:

A simple sink that writes log messages to the console.

Public Functions

virtual void log(Logger::Level level, std::string_view message, const std::source_location &loc) override

Logs a message to the console.

Parameters:

• level – Logging level.

• message – The message to log.

• loc – Source location.

virtual void flush() override

Flushes the console output.