service_rpl_transaction_write_set.h File Reference

This service provides a function for plugins to get the write set of a given transaction. More...

#include <stdlib.h>

Go to the source code of this file.

Classes
struct	Transaction_write_set
	This structure is used to keep the list of the hash values of the records changed in the transaction. More...
struct	transaction_write_set_service_st

Macros
#define	MYSQL_SERVICE_TRANSACTION_WRITE_SET_INCLUDED

Functions
Transaction_write_set *	get_transaction_write_set (unsigned long m_thread_id)
void	require_full_write_set (bool requires_ws)
void	set_write_set_memory_size_limit (uint64 size_limit)
void	update_write_set_memory_size_limit (uint64 size_limit)

Variables
struct transaction_write_set_service_st *	transaction_write_set_service

Detailed Description

This service provides a function for plugins to get the write set of a given transaction.

Implementation of service_rpl_transaction_write_set, see.

SYNOPSIS get_transaction_write_set() This service is used to fetch the write_set extracted for the currently executing transaction by passing the thread_id as an input parameter for the method.

Parameters

[in]

-

thread_id - It is the thread identifier of the currently executing thread.

In the current implementation it is being called during RUN_HOOK macro, on which we know that thread is on plugin context.

Cleanup : The service caller must take of the memory allocated during the service call to prevent memory leaks.

Macro Definition Documentation

MYSQL_SERVICE_TRANSACTION_WRITE_SET_INCLUDED

#define MYSQL_SERVICE_TRANSACTION_WRITE_SET_INCLUDED

Function Documentation

get_transaction_write_set()

Transaction_write_set * get_transaction_write_set

(

unsigned long

m_thread_id

)

require_full_write_set()

void require_full_write_set

(

bool

requires_ws

)

set_write_set_memory_size_limit()

void set_write_set_memory_size_limit

(

uint64

size_limit

)

update_write_set_memory_size_limit()

void update_write_set_memory_size_limit

(

uint64

size_limit

)

Variable Documentation

transaction_write_set_service

struct transaction_write_set_service_st * transaction_write_set_service