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/* Copyright (c) 2020, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef RPL_ASYNC_CONN_FAILOVER_TABLE_OPERATIONS_H
#define RPL_ASYNC_CONN_FAILOVER_TABLE_OPERATIONS_H
#include <functional>
#include <tuple>
#include "sql/field.h"
#include "sql/table.h"
#include "sql/udf_service_util.h"
class Rpl_sys_table_access;
class Json_wrapper;
namespace protobuf_replication_asynchronous_connection_failover {
class SourceAndManagedList;
}
/* <channel, host, port, network_namespace, weight, managed_name> */
using RPL_FAILOVER_SOURCE_TUPLE =
std::tuple<std::string, std::string, uint, std::string, uint, std::string>;
/* <channel, managed_name, managed_type, configuration> */
using RPL_FAILOVER_MANAGED_JSON_TUPLE =
std::tuple<std::string, std::string, std::string, Json_wrapper>;
/* <channel, managed_name, managed_type, primary_weight, secondary_weight> */
using RPL_FAILOVER_MANAGED_TUPLE =
std::tuple<std::string, std::string, std::string, uint, uint>;
using RPL_FAILOVER_SOURCE_LIST = std::vector<RPL_FAILOVER_SOURCE_TUPLE>;
/*
Class provides read, write and delete function to
replication_asynchronous_connection_failover and
replication_asynchronous_connection_failover_managed
tables.
*/
class Rpl_async_conn_failover_table_operations {
public:
/**
Construction.
@param[in] lock_type How to lock the table
*/
Rpl_async_conn_failover_table_operations(
enum thr_lock_type lock_type = TL_WRITE)
: m_lock_type(lock_type) {}
virtual ~Rpl_async_conn_failover_table_operations() = default;
/**
Insert row for a unmanaged sender on
replication_asynchronous_connection_failover table, and
send stored table data to its group replication group members.
@param[in] channel channel
@param[in] host sender host
@param[in] port sender port
@param[in] network_namespace sender network_namespace
@param[in] weight sender weight
@param[in] managed_name The name of the group which this server
belongs to.
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
std::tuple<bool, std::string> add_source(const std::string &channel,
const std::string &host, uint port,
const std::string &network_namespace,
uint weight,
const std::string &managed_name);
/**
Insert row for a unmanaged sender on
replication_asynchronous_connection_failover table.
@param[in] channel channel
@param[in] host sender host
@param[in] port sender port
@param[in] network_namespace sender network_namespace
@param[in] weight sender weight
@param[in] managed_name The name of the group which this server
belongs to.
@param[in] table_op Rpl_sys_table_access class object.
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
static std::tuple<bool, std::string> add_source_skip_send(
const std::string &channel, const std::string &host, uint port,
const std::string &network_namespace, uint weight,
const std::string &managed_name, Rpl_sys_table_access &table_op);
/**
Insert row on replication_asynchronous_connection_failover_managed
and replication_asynchronous_connection_failover tables, and
send stored table data to its group replication group members.
@param[in] channel channel
@param[in] host sender host
@param[in] port sender port
@param[in] network_namespace sender network_namespace
@param[in] managed_type Determines the manged group type.
@param[in] managed_name The name of the group which this server
belongs to
@param[in] primary_weight weight assigned to the primary
@param[in] secondary_weight weight assigned to the secondary
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
std::tuple<bool, std::string> add_managed(
const std::string &channel, const std::string &host, uint port,
const std::string &network_namespace, const std::string &managed_type,
const std::string &managed_name, uint primary_weight,
uint secondary_weight);
/**
Insert row on replication_asynchronous_connection_failover_managed
table.
@param[in] channel channel
@param[in] managed_type Determines the manged group type.
@param[in] managed_name The name of the group which this server
belongs to.
@param[in] wrapper contains weight assigned to the primary
and secondary member in Json format.
@param[in] table_op Rpl_sys_table_access class object.
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
static std::tuple<bool, std::string> add_managed_skip_send(
const std::string &channel, const std::string &managed_type,
const std::string &managed_name, const Json_wrapper &wrapper,
Rpl_sys_table_access &table_op);
/**
Delete row for a unmanaged sender on
replication_asynchronous_connection_failover table.
@param[in] channel channel
@param[in] host sender host
@param[in] port sender port
@param[in] network_namespace sender network_namespace
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
std::tuple<bool, std::string> delete_source(
const std::string &channel, const std::string &host, uint port,
const std::string &network_namespace);
/**
Delete row on replication_asynchronous_connection_failover_managed table
and all its sources on replication_asynchronous_connection_failover table.
@param[in] channel The asynchronous replication channel name
@param[in] managed_name The name of the group which this server
belongs to.
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
std::tuple<bool, std::string> delete_managed(const std::string &channel,
const std::string &managed_name);
/**
Delete all rows on replication_asynchronous_connection_failover_managed
and replication_asynchronous_connection_failover tables, and delete
its respective rows on replication_group_configuration_version table.
@return operation status:
false Successful
true Error
*/
bool reset();
/**
Read all sources for a channel.
It uses index scan (ha_index_read_idx_map) to fetch rows for the channel
name.
@param[in] channel_name The channel name
@returns std::tuple<bool, List_of_Tuple> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of the tuple is list of return details based on
open table and template provided.
*/
std::tuple<bool, std::vector<RPL_FAILOVER_SOURCE_TUPLE>>
read_source_rows_for_channel(std::string channel_name);
/**
Real all sources for a channel and a managed name.
It uses index scan (ha_index_read_idx_map) to fetch rows for the channel
name and manged name.
@param[in] channel_name The channel name
@param[in] managed_name The name of the group which this server
belongs to.
@returns std::tuple<bool, List_of_Tuple> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of the tuple is list of return details based on
open table and template provided.
*/
std::tuple<bool, std::vector<RPL_FAILOVER_SOURCE_TUPLE>>
read_source_rows_for_channel_and_managed_name(std::string channel_name,
std::string managed_name);
/**
Read rows and fields from
replication_asynchronous_connection_failover_managed table and returns its
details in provided RPL_FAILOVER_MANAGED_TUPLE tuple. It uses index scan
(ha_index_read_idx_map) to fetch rows for the channel name.
@param[in] channel_name The channel name
@param[out] rows return rows read from
replication_asynchronous_connection_failover_managed
@return function return value which determines if read was:
false Successful
true Error
*/
bool read_managed_rows_for_channel(
std::string channel_name, std::vector<RPL_FAILOVER_MANAGED_TUPLE> &rows);
/**
Read all sources.
It uses index scan (ha_index_first) to fetch all the rows.
@param[in] table_op Rpl_sys_table_access class object.
@returns std::tuple<bool, List_of_Tuple> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of the tuple is list of return details based on
open table and template provided.
*/
static std::tuple<bool, std::vector<RPL_FAILOVER_SOURCE_TUPLE>>
read_source_all_rows_internal(Rpl_sys_table_access &table_op);
/**
Read all sources.
It uses index scan (ha_index_first) to fetch all the rows.
@returns std::tuple<bool, List_of_Tuple> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of the tuple is list of return details based on
open table and template provided.
*/
std::tuple<bool, std::vector<RPL_FAILOVER_SOURCE_TUPLE>>
read_source_all_rows();
/**
Get all sources using random scan (ha_rnd_next) to fetch all the rows.
@returns std::tuple<bool, List_of_Tuple> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of the tuple is list of return details based on
open table and template provided.
*/
std::tuple<bool, std::vector<RPL_FAILOVER_SOURCE_TUPLE>>
read_source_random_rows();
/**
Read rows and fields from
replication_asynchronous_connection_failover_managed table and returns its
details in provided RPL_FAILOVER_MANAGED_JSON_TUPLE tuple. It uses random
scan (ha_rnd_next) to fetch all the rows.
@param[in] table_op Rpl_sys_table_access class object.
@param[out] rows return rows read from
replication_asynchronous_connection_failover_managed
@return function return value which determines if read was:
false Successful
true Error
*/
static bool read_managed_random_rows_internal(
Rpl_sys_table_access &table_op,
std::vector<RPL_FAILOVER_MANAGED_JSON_TUPLE> &rows);
/**
Read rows and fields from
replication_asynchronous_connection_failover_managed table and returns its
details in provided RPL_FAILOVER_MANAGED_TUPLE tuple. It uses random
scan (ha_rnd_next) to fetch all the rows.
@param[in] table_op Rpl_sys_table_access class object.
@param[out] rows return rows read from
replication_asynchronous_connection_failover_managed
@return function return value which determines if read was:
false Successful
true Error
*/
static bool read_managed_random_rows_internal(
Rpl_sys_table_access &table_op,
std::vector<RPL_FAILOVER_MANAGED_TUPLE> &rows);
/**
Read rows and fields from
replication_asynchronous_connection_failover_managed table and returns its
details in provided RPL_FAILOVER_MANAGED_TUPLE tuple. It uses random scan
(ha_rnd_next) to fetch all the rows.
@param[out] rows return rows read from
replication_asynchronous_connection_failover_managed
@return function return value which determines if read was:
false Successful
true Error
*/
bool read_managed_random_rows(std::vector<RPL_FAILOVER_MANAGED_TUPLE> &rows);
/**
Get stored data in table.
@param[in] table_op Rpl_sys_table_access class object.
@param[out] rows Fetch and store read rows in the tuple.
*/
template <class TUP>
static void get_data(Rpl_sys_table_access &table_op, TUP &rows);
/* Configuration column primary key name */
static const MYSQL_LEX_CSTRING Primary_weight_key;
/* Configuration column secondary key name */
static const MYSQL_LEX_CSTRING Secondary_weight_key;
private:
enum thr_lock_type m_lock_type; // table lock type
const std::string m_db{"mysql"}; // the database table belongs to
const std::string m_table_failover{
"replication_asynchronous_connection_failover"};
const uint m_table_failover_num_field{6};
const std::string m_table_managed{
"replication_asynchronous_connection_failover_managed"};
const uint m_table_managed_num_field{4};
/**
A wrapper template function to save/delete data to given table.
@param[in] field_index The list of field's position to be written or match
while querying for delete operations.
@param[in] field_name The list of field names of the table.
@param[in] field_value The field values to be written or match while
querying for delete operations.
@param[in] func The handler class function to write/delete data.
@param[in] table_index The table index/key position (by default i.e. on
position 0, if primary key present is used).
@param[in] keypart_map Which part of key to use.
@param[in] table_op Rpl_sys_table_access class object.
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
template <class T>
static std::tuple<bool, std::string> execute_handler_func_skip_send(
const std::vector<uint> &field_index,
const std::vector<std::string> &field_name, const T &field_value,
std::function<void(Rpl_sys_table_access &, bool &, std::string &, uint &,
key_part_map &)>
func,
uint table_index, key_part_map keypart_map,
Rpl_sys_table_access &table_op);
/**
A wrapper template function to save/delete data to given table,
and send stored table data to its group replication group members.
@param[in] db_name The database whose table will be used to
write/delete data.
@param[in] table_name The table to which data will be written or deleted.
@param[in] num_field The number of fields to be written or match while
querying for delete operations.
@param[in] lock_type How to lock the table
@param[in] field_index The list of field's position to be written or match
while querying for delete operations.
@param[in] field_name The list of field names of the table.
@param[in] field_value The field values to be written or match while
querying for delete operations.
@param[in] func The handler class function to write/delete data.
@param[in] table_index The table index/key position (by default i.e. on
position 0, if primary key present is used).
@param[in] keypart_map Which part of key to use.
@returns std::tuple<bool, std::string> where each element has
following meaning:
first element of tuple is function return value and determines:
false Successful
true Error
second element of tuple is error message.
*/
template <class T>
static std::tuple<bool, std::string> execute_handler_func_send(
const std::string &db_name, const std::string &table_name, uint num_field,
enum thr_lock_type lock_type, const std::vector<uint> &field_index,
const std::vector<std::string> &field_name, const T &field_value,
std::function<void(Rpl_sys_table_access &, bool &, std::string &, uint &,
key_part_map &)>
func,
uint table_index, key_part_map keypart_map);
};
#endif /* RPL_ASYNC_CONN_FAILOVER_TABLE_OPERATIONS_H */
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