mysql5/mysql-5.7.27/sql/rpl_info_factory.h

130 lines
5.4 KiB
C++

/* Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 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_INFO_FACTORY_H
#define RPL_INFO_FACTORY_H
#ifdef HAVE_REPLICATION
#include "my_global.h"
#include "rpl_channel_service_interface.h" // enum_channel_type
#include "rpl_info_handler.h" // enum_return_check
#include <vector>
#include <string>
class Master_info;
class Multisource_info;
class Relay_log_info;
class Rpl_info;
class Slave_worker;
extern ulong opt_mi_repository_id;
extern ulong opt_rli_repository_id;
class Rpl_info_factory
{
public:
static bool create_slave_info_objects(uint mi_option, uint rli_option, int
thread_mask, Multisource_info *pchannel_map);
static Master_info* create_mi_and_rli_objects(uint mi_option,
uint rli_option,
const char* channel,
bool convert_repo,
Multisource_info* channel_map);
static Master_info *create_mi(uint rli_option, const char* channel,
bool conver_repo);
static bool change_mi_repository(Master_info *mi, const uint mi_option,
const char **msg);
static Relay_log_info *create_rli(uint rli_option, bool is_slave_recovery,
const char* channel, bool convert_repo);
static bool change_rli_repository(Relay_log_info *rli, const uint rli_option,
const char **msg);
static Slave_worker *create_worker(uint rli_option, uint worker_id,
Relay_log_info *rli,
bool is_gaps_collecting_phase);
static bool reset_workers(Relay_log_info *rli);
private:
typedef struct
{
uint n_fields;
char name[FN_REFLEN];
char pattern[FN_REFLEN];
bool name_indexed; // whether file name should include instance number
} struct_file_data;
typedef struct
{
uint n_fields;
const char* schema;
const char* name;
uint n_pk_fields;
const uint* pk_field_indexes;
} struct_table_data;
static struct_table_data rli_table_data;
static struct_file_data rli_file_data;
static struct_table_data mi_table_data;
static struct_file_data mi_file_data;
static struct_table_data worker_table_data;
static struct_file_data worker_file_data;
static void init_repository_metadata();
static bool decide_repository(Rpl_info *info,
uint option,
Rpl_info_handler **handler_src,
Rpl_info_handler **handler_dest,
const char **msg);
static bool init_repositories(const struct_table_data table_data,
const struct_file_data file_data,
uint option,
uint instance,
Rpl_info_handler **handler_src,
Rpl_info_handler **handler_dest,
const char **msg);
static enum_return_check check_src_repository(Rpl_info *info,
uint option,
Rpl_info_handler **handler_src);
static bool check_error_repository(Rpl_info *info,
Rpl_info_handler *handler_src,
Rpl_info_handler *handler_dst,
enum_return_check err_src,
enum_return_check err_dst,
const char **msg);
static bool init_repositories(Rpl_info *info,
Rpl_info_handler **handler_src,
Rpl_info_handler **handler_dst,
const char **msg);
static bool scan_repositories(uint* found_instances,
uint* found_rep_option,
const struct_table_data table_data,
const struct_file_data file_data, const char **msg);
static bool load_channel_names_from_repository(std::vector<std::string> & channel_list, uint mi_instances,
uint mi_repository, const char *default_channel,
bool *default_channel_created_previously);
static bool load_channel_names_from_table(std::vector<std::string> &channel_list,
const char *default_channel,
bool *default_channel_created_previously);
};
#endif
#endif