log_builtins_syseventlog_imp Class Reference

Syslog/Eventlog functions for logging services. More...

#include <log_builtins_imp.h>

Static Public Member Functions
static log_service_error	open (const char *name, int option, int facility) noexcept
	Wrapper for mysys' my_openlog. More...
static log_service_error	write (enum loglevel level, const char *msg) noexcept
	Wrapper for mysys' my_syslog. More...
static log_service_error	close (void) noexcept
	Wrapper for mysys' my_closelog. More...

Detailed Description

Syslog/Eventlog functions for logging services.

Member Function Documentation

close()

log_service_error log_builtins_syseventlog_imp::close ( void  )

staticnoexcept

Wrapper for mysys' my_closelog.

Closes/de-registers the system logging handle.

Return values

LOG_SERVICE_SUCCESS	Success
otherwise	Error

open()

log_service_error log_builtins_syseventlog_imp::open ( const char *  name, int  option, int  facility  )

staticnoexcept

Wrapper for mysys' my_openlog.

Opens/Registers a new handle for system logging. Note: It's a thread-unsafe function. It should either be invoked from the main thread or some extra thread safety measures need to be taken.

Parameters

name	Name of the event source / syslog ident.
option	MY_SYSLOG_PIDS to log PID with each message.
facility	Type of program. Passed to openlog().

Return values

LOG_SERVICE_SUCCESS	Success
LOG_SERVICE_NOT_AVAILABLE	Error, log not opened
LOG_ERROR_NOTHING_DONE	Error, not updated, using previous values

write()

log_service_error log_builtins_syseventlog_imp::write ( enum loglevel  level, const char *  msg  )

staticnoexcept

Wrapper for mysys' my_syslog.

Sends message to the system logger. On Windows, the specified message is internally converted to UCS-2 encoding, while on other platforms, no conversion takes place and the string is passed to the syslog API as it is.

Parameters

level	Log level
msg	Message to be logged

Return values

LOG_SERVICE_SUCCESS	Success
otherwise	Error, nothing logged

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

• sql/server_component/log_builtins_imp.h
• sql/server_component/log_builtins.cc