Binlog_relay_IO_observer Struct Reference

#include <replication.h>

List of all members.

Public Attributes
uint32	len
int(*	thread_start )(Binlog_relay_IO_param *param)
int(*	thread_stop )(Binlog_relay_IO_param *param)
int(*	before_request_transmit )(Binlog_relay_IO_param *param, uint32 flags)
int(*	after_read_event )(Binlog_relay_IO_param *param, const char *packet, unsigned long len, const char **event_buf, unsigned long *event_len)
int(*	after_queue_event )(Binlog_relay_IO_param *param, const char *event_buf, unsigned long event_len, uint32 flags)
int(*	after_reset_slave )(Binlog_relay_IO_param *param)

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Detailed Description

Observes and extends the service of slave IO thread.

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Member Data Documentation

int(* Binlog_relay_IO_observer::after_queue_event)(Binlog_relay_IO_param *param, const char *event_buf, unsigned long event_len, uint32 flags)

This callback is called after written an event packet to relay log

Parameters:

param	Observer common parameter
event_buf	Event packet written to relay log
event_len	Length of the event packet written to relay log
flags	flags for relay log

Return values:

0	Sucess
1	Failure

int(* Binlog_relay_IO_observer::after_read_event)(Binlog_relay_IO_param *param, const char *packet, unsigned long len, const char **event_buf, unsigned long *event_len)

This callback is called after read an event packet from master

Parameters:

param	Observer common parameter
packet	The event packet read from master
len	Length of the event packet read from master
event_buf	The event packet return after process
event_len	The length of event packet return after process

Return values:

0	Sucess
1	Failure

int(* Binlog_relay_IO_observer::after_reset_slave)(Binlog_relay_IO_param *param)

This callback is called after reset slave relay log IO status

Parameters:

param

Observer common parameter

Return values:

0	Sucess
1	Failure

int(* Binlog_relay_IO_observer::before_request_transmit)(Binlog_relay_IO_param *param, uint32 flags)

This callback is called before slave requesting binlog transmission from master

This is called before slave issuing BINLOG_DUMP command to master to request binlog.

Parameters:

param	Observer common parameter
flags	binlog dump flags

Return values:

0	Sucess
1	Failure

int(* Binlog_relay_IO_observer::thread_start)(Binlog_relay_IO_param *param)

This callback is called when slave IO thread starts

Parameters:

param

Observer common parameter

Return values:

0	Sucess
1	Failure

int(* Binlog_relay_IO_observer::thread_stop)(Binlog_relay_IO_param *param)

This callback is called when slave IO thread stops

Parameters:

param

Observer common parameter

Return values:

0	Sucess
1	Failure

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The documentation for this struct was generated from the following file:

• replication.h