Option tracker usage marker. More...

#include <mysql_option_tracker.h>

Public Attributes
mysql_service_status_t(*	set )(const char option, const char usage_data_json)
	Set usage data. More...

mysql_service_status_t(*	get )(const char option, char usage_data, size_t sizeof_usage_data)
	Get usage data. More...

Detailed Description

Option tracker usage marker.

Sets usage data for a given option. Internally stores into the system table.

It gets the value for cluster_id from the system variable group_replication_group_name (defined by the GR plugin). If the plugin is not installed it uses empty string.

It gets the value for server_id from the system variable server_uuid.

Member Data Documentation

◆ get

mysql_service_status_t(* s_mysql_mysql_option_tracker_usage::get) (const char *option, char *usage_data, size_t sizeof_usage_data)

Get usage data.

Reads the persisted state. Stores a 0-terminated UTF-8 data into the supplied buffer. If the data to be stored are too long for the buffer the function fails.

Reading is done in a separate auto-commit transaction.

Parameters

	option	The name of the option, US ASCII
[out]	usage_data	A buffer to return the UTF-8 data in.
	sizeof_usage_data	The size of the usage_data_buffer in bytes. otherwise.

Return values

false	success
true	failure

◆ set

mysql_service_status_t(* s_mysql_mysql_option_tracker_usage::set) (const char *option, const char *usage_data_json)

Set usage data.

Sets the persisted state