Slave_reporting_capability Class Reference

#include <rpl_reporting.h>

Inheritance diagram for Slave_reporting_capability:

List of all members.

Classes
class	Error
Public Member Functions
	Slave_reporting_capability (char const *thread_name)
virtual void	report (loglevel level, int err_code, const char *msg,...) const ATTRIBUTE_FORMAT(printf
virtual void void	va_report (loglevel level, int err_code, const char *prefix_msg, const char *msg, va_list v_args) const
void	clear_error ()
int	has_temporary_error (THD *thd, uint error_arg=0, bool *silent=0) const
Error const &	last_error () const
bool	is_error () const
Public Attributes
mysql_mutex_t	err_lock
Protected Member Functions
virtual void	do_report (loglevel level, int err_code, const char *msg, va_list v_args) const

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Detailed Description

Mix-in to handle the message logging and reporting for relay log info and master log info structures.

By inheriting from this class, the class is imbued with capabilities to do slave reporting.

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Constructor & Destructor Documentation

Slave_reporting_capability::Slave_reporting_capability

(

char const *

thread_name

)

Constructor.

Parameters:

thread_name

Printable name of the slave thread that is reporting.

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Member Function Documentation

void Slave_reporting_capability::clear_error

(

)

[inline]

Clear errors. They will not show up under SHOW SLAVE STATUS.

int Slave_reporting_capability::has_temporary_error	(	THD *	thd,
		uint	error_arg = 0,
		bool *	silent = 0
	)		const

Check if the current error is of temporary nature or not.

Check if the current error is of temporary nature or not. Some errors are temporary in nature, such as ER_LOCK_DEADLOCK and ER_LOCK_WAIT_TIMEOUT. Ndb also signals that the error is temporary by pushing a warning with the error code ER_GET_TEMPORARY_ERRMSG, if the originating error is temporary.

Parameters:

thd	a THD instance, typically of the slave SQL thread's. the error code for assessment. defaults to zero which makes the function check the top of the reported errors stack. bool indicating whether the error should be silently handled.

Returns:

1 as the positive and 0 as the negative verdict

void Slave_reporting_capability::report	(	loglevel	level,
		int	err_code,
		const char *	msg,
			...
	)		const [virtual]

Writes a message and, if it's an error message, to Last_Error (which will be displayed by SHOW SLAVE STATUS).

Parameters:

level	The severity level
err_code	The error code
msg	The message (usually related to the error code, but can contain more information), in printf() format.

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Member Data Documentation

mysql_mutex_t Slave_reporting_capability::err_lock [mutable]

lock used to synchronize m_last_error on 'SHOW SLAVE STATUS'

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

• rpl_reporting.h
• rpl_reporting.cc