104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
#pragma once
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// Thread safe logger
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// Has name, log level, vector of std::shared sink pointers and formatter
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// Upon each log write the logger:
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// 1. Checks if its log level is enough to log the message
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// 2. Format the message using the formatter function
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// 3. Pass the formatted message to its sinks to performa the actual logging
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#include<vector>
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#include<memory>
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#include<atomic>
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#include <sstream>
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#include <exception>
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#include "sinks/base_sink.h"
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#include "common.h"
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namespace c11log
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{
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namespace details
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{
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class line_logger;
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}
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class logger
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{
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public:
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logger(const std::string& name, sinks_init_list);
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template<class It>
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logger(const std::string& name, const It& begin, const It& end);
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void set_format(const std::string&);
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void set_formatter(formatter_ptr);
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formatter_ptr get_formatter() const;
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logger(const logger&) = delete;
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logger& operator=(const logger&) = delete;
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void set_level(level::level_enum);
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level::level_enum level() const;
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const std::string& name() const;
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bool should_log(level::level_enum) const;
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template <typename... Args> details::line_logger log(level::level_enum lvl, const Args&... args);
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template <typename... Args> details::line_logger trace(const Args&... args);
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template <typename... Args> details::line_logger debug(const Args&... args);
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template <typename... Args> details::line_logger info(const Args&... args);
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template <typename... Args> details::line_logger warn(const Args&... args);
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template <typename... Args> details::line_logger error(const Args&... args);
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template <typename... Args> details::line_logger critical(const Args&... args);
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private:
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friend details::line_logger;
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std::string _name;
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formatter_ptr _formatter;
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std::vector<sink_ptr> _sinks;
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std::atomic_int _level;
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void _variadic_log(details::line_logger& l);
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template <typename First, typename... Rest>
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void _variadic_log(details::line_logger&l, const First& first, const Rest&... rest);
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void _log_msg(details::log_msg& msg);
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};
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//
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// Registry functions for easy loggers creation and retrieval
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// example
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// auto console_logger = c11log::create("my_logger", c11log::sinks<stdout_sink_mt>);
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// auto same_logger = c11log::get("my_logger");
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// auto file_logger = c11
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//
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std::shared_ptr<logger> get(const std::string& name);
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std::shared_ptr<logger> create(const std::string& logger_name, sinks_init_list sinks);
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template <typename Sink, typename... Args>
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std::shared_ptr<c11log::logger> create(const std::string& logger_name, const Args&... args);
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template<class It>
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std::shared_ptr<logger> create(const std::string& logger_name, const It& sinks_begin, const It& sinks_end);
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void set_formatter(formatter_ptr f);
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void set_format(const std::string& format_string);
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}
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//
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// Trace & debug macros
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//
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#ifdef FFLOG_ENABLE_TRACE
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#define FFLOG_TRACE(logger, ...) logger->log(c11log::level::TRACE, __FILE__, " #", __LINE__,": " __VA_ARGS__)
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#else
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#define FFLOG_TRACE(logger, ...) {}
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#endif
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#ifdef FFLOG_ENABLE_DEBUG
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#define FFLOG_DEBUG(logger, ...) logger->log(c11log::level::DEBUG, __VA_ARGS__)
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#else
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#define FFLOG_DEBUG(logger, ...) {}
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#endif
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#include "./details/logger_impl.h"
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