Slave_reporting_capability Class Reference

#include <rpl_reporting.h>

Inheritance diagram for Slave_reporting_capability:

Collaboration diagram for Slave_reporting_capability:

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

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.

Definition at line 38 of file rpl_reporting.h.

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.

Definition at line 22 of file rpl_reporting.cc.

Member Function Documentation

void Slave_reporting_capability::clear_error ( )

inline

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

Definition at line 69 of file rpl_reporting.h.

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

Definition at line 45 of file rpl_reporting.cc.

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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.

Definition at line 110 of file rpl_reporting.cc.

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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'

Definition at line 42 of file rpl_reporting.h.

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

• sql/rpl_reporting.h
• sql/rpl_reporting.cc