mirror of
https://github.com/MariaDB/server.git
synced 2025-07-29 11:45:32 +00:00
c12c675d36
Add Rpl_filter to mysqlbinlog.cc
Note. Though within MWL#36 we are going to use only two Rpl_filter's
methods (add_db_rewrite and get_rewrite_db), we look forward for
MWL#40 where Rpl_filter is likely to be used to its more extent.
Note. Within MWL#36 we will not use Rpl_filter for supporting --database
option: this option allows to specify only one database what
doesn't correlate with Rpl_filter::add_do_db() (using this method
will either appear "artificial" or require changing --database
semantics). To be discussed within MWL#40.
To add Rpl_filter we need:
1. include sql_string.h
There are two instances of sql_string.* files - in sql and in client
directories. We need to use the ones from the sql dir.
2. include sql_list.h
This requires to define a client version of sql_alloc() function.
3. include rpl_filter.h
This requires a definition of system_charset_info variable.
Besides, Rpl_filter::tables_ok() refers to a TABLE_LIST structure which
encounts deep non-client dependencies and can't be used here as is. On
the other hand, tables_ok() make use only few TABLE_LIST's members and
none of them depends on specific server context. This allows to redefine
TABLE_LIST in a client context so that tables_ok() becomes admissible
(surely it's a kind of hack but (at least currently) it's better than
#ifndef'ing this method in Rpl_filter definition).
Also add Rpl_filter::rewrite_db_is_empty() method. This is needed to be
able to check that --rewrite-db is not used jointly with --base64-output=
always (this is not supported - at least currently).
118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
/* Copyright (C) 2000-2003 MySQL AB
|
|
|
|
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
|
|
#ifndef RPL_FILTER_H
|
|
#define RPL_FILTER_H
|
|
|
|
#include "mysql.h"
|
|
|
|
typedef struct st_table_rule_ent
|
|
{
|
|
char* db;
|
|
char* tbl_name;
|
|
uint key_len;
|
|
} TABLE_RULE_ENT;
|
|
|
|
/*
|
|
Rpl_filter
|
|
|
|
Inclusion and exclusion rules of tables and databases.
|
|
Also handles rewrites of db.
|
|
Used for replication and binlogging.
|
|
*/
|
|
class Rpl_filter
|
|
{
|
|
public:
|
|
Rpl_filter();
|
|
~Rpl_filter();
|
|
Rpl_filter(Rpl_filter const&);
|
|
Rpl_filter& operator=(Rpl_filter const&);
|
|
|
|
/* Checks - returns true if ok to replicate/log */
|
|
|
|
bool tables_ok(const char* db, TABLE_LIST* tables);
|
|
bool db_ok(const char* db);
|
|
bool db_ok_with_wild_table(const char *db);
|
|
|
|
bool is_on();
|
|
|
|
/* Setters - add filtering rules */
|
|
|
|
int add_do_table(const char* table_spec);
|
|
int add_ignore_table(const char* table_spec);
|
|
|
|
int add_wild_do_table(const char* table_spec);
|
|
int add_wild_ignore_table(const char* table_spec);
|
|
|
|
void add_do_db(const char* db_spec);
|
|
void add_ignore_db(const char* db_spec);
|
|
|
|
void add_db_rewrite(const char* from_db, const char* to_db);
|
|
|
|
/* Getters - to get information about current rules */
|
|
|
|
void get_do_table(String* str);
|
|
void get_ignore_table(String* str);
|
|
|
|
void get_wild_do_table(String* str);
|
|
void get_wild_ignore_table(String* str);
|
|
|
|
bool rewrite_db_is_empty();
|
|
const char* get_rewrite_db(const char* db, size_t *new_len);
|
|
|
|
I_List<i_string>* get_do_db();
|
|
I_List<i_string>* get_ignore_db();
|
|
|
|
private:
|
|
bool table_rules_on;
|
|
|
|
void init_table_rule_hash(HASH* h, bool* h_inited);
|
|
void init_table_rule_array(DYNAMIC_ARRAY* a, bool* a_inited);
|
|
|
|
int add_table_rule(HASH* h, const char* table_spec);
|
|
int add_wild_table_rule(DYNAMIC_ARRAY* a, const char* table_spec);
|
|
|
|
void free_string_array(DYNAMIC_ARRAY *a);
|
|
|
|
void table_rule_ent_hash_to_str(String* s, HASH* h, bool inited);
|
|
void table_rule_ent_dynamic_array_to_str(String* s, DYNAMIC_ARRAY* a,
|
|
bool inited);
|
|
TABLE_RULE_ENT* find_wild(DYNAMIC_ARRAY *a, const char* key, int len);
|
|
|
|
/*
|
|
Those 4 structures below are uninitialized memory unless the
|
|
corresponding *_inited variables are "true".
|
|
*/
|
|
HASH do_table;
|
|
HASH ignore_table;
|
|
DYNAMIC_ARRAY wild_do_table;
|
|
DYNAMIC_ARRAY wild_ignore_table;
|
|
|
|
bool do_table_inited;
|
|
bool ignore_table_inited;
|
|
bool wild_do_table_inited;
|
|
bool wild_ignore_table_inited;
|
|
|
|
I_List<i_string> do_db;
|
|
I_List<i_string> ignore_db;
|
|
|
|
I_List<i_string_pair> rewrite_db;
|
|
};
|
|
|
|
extern Rpl_filter *rpl_filter;
|
|
extern Rpl_filter *binlog_filter;
|
|
|
|
#endif // RPL_FILTER_H
|