booster/log.h File Reference

#include <booster/config.h>
#include <iosfwd>
#include <memory>
#include <string>
#include <booster/copy_ptr.h>
#include <booster/hold_ptr.h>
#include <booster/noncopyable.h>

Go to the source code of this file.

Classes
class	booster::log::message
	This class represents a single message that should be written to log. More...
class	booster::log::sink
	This is the abstract interface to general sink - the consumer of the logged messages. More...
class	booster::log::logger
	This is the central class that manages all logging operations. More...
struct	booster::log::logger::entry
class	booster::log::sinks::standard_error
	stderr based sink - sends messages to standard error output More...
class	booster::log::sinks::file
	log file based sink - sends messages to log file More...
Namespaces
namespace	booster
	Booster library namespace. The library that implements Boost Like API in ABI backward compatible way.
namespace	booster::log
	This namespace includes Booster.Log related classes.
namespace	booster::log::sinks
	This namespace includes various output devices (sinks) for logger.
Defines
#define	BOOSTER_LOG(level, module)
	Log a message with severity level of the module to the log device if applicable.
#define	BOOSTER_EMERG(m)   BOOSTER_LOG(emergency,m)
	Same as BOOSTER_LOG(emergency,m)
#define	BOOSTER_ALERT(m)   BOOSTER_LOG(alert,m)
	Same as BOOSTER_LOG(alert,m)
#define	BOOSTER_CRITICAL(m)   BOOSTER_LOG(critical,m)
	Same as BOOSTER_LOG(critical,m)
#define	BOOSTER_ERROR(m)   BOOSTER_LOG(error,m)
	Same as BOOSTER_LOG(error,m)
#define	BOOSTER_WARNING(m)   BOOSTER_LOG(warning,m)
	Same as BOOSTER_LOG(warning,m)
#define	BOOSTER_NOTICE(m)   BOOSTER_LOG(notice,m)
	Same as BOOSTER_LOG(notice,m)
#define	BOOSTER_INFO(m)   BOOSTER_LOG(info,m)
	Same as BOOSTER_LOG(info,m)
#define	BOOSTER_DEBUG(m)   BOOSTER_LOG(debug,m)
	Same as BOOSTER_LOG(debug,m)
Enumerations
enum	booster::log::level_type {   emergency = 0, alert = 10, critical = 20, error = 30,   warning = 40, notice = 50, info = 60, debug = 70,   all = 100 }
Functions
BOOSTER_API std::string	booster::log::sinks::format_plain_text_message (message const &msg)
BOOSTER_API std::string	booster::log::sinks::format_plain_text_message_tz (message const &msg, int timezone_offset=0)

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Detailed Description

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Define Documentation

#define BOOSTER_LOG	(		level,
			module
	)

Value:

::booster::log::logger::instance().should_be_logged(::booster::log::level,module)       \
                && ::booster::log::message(::booster::log::level,module,__FILE__,__LINE__).out()

Log a message with severity level of the module to the log device if applicable.

Notes:

• it first checks of the message should be logged at all, and if not, all the rest is not called
• the message is logged in the destruction of the output stream object
• the parameter level should be given as is "warning" or "debug" the namespace flags would be added withing macro
• It may be more convenient to use BOOSTER_WARNING or BOOSTER_DEBUG macros

Example:

   BOOSTER_LOG(warning,"file_system") << "Failed to open file name " << name;
   BOOSTER_CRITICAL("core") << "Failed to allocate memory";