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82eedf4e97
Users can set different repplication filter rules for each replication connection, in my.cnf or command line. But the rules set online will not record in master.info, it means if users restart MySQL, these rules will lose. So if users wantn't their replication filter rules lose, they should write the rules in my.cnf. Users can set rules by 2 ways: 1. Online SET command, "SET connection_name.replication_filter_settings = rules;". 2. In my.cnf, "connection_name.replication_filter_settings = rules". If no connection_name in my.cnf, this rule will apply for ALL replication connection. If no connetion_name in SET statement, this rull will apply for default_connection_name.
147 lines
4.1 KiB
C++
147 lines
4.1 KiB
C++
/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef RPL_FILTER_H
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#define RPL_FILTER_H
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#include "mysql.h"
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#include "sql_list.h" /* I_List */
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#include "hash.h" /* HASH */
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class String;
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struct TABLE_LIST;
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typedef struct st_dynamic_array DYNAMIC_ARRAY;
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typedef struct st_table_rule_ent
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{
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char* db;
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char* tbl_name;
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uint key_len;
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} TABLE_RULE_ENT;
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/*
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Rpl_filter
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Inclusion and exclusion rules of tables and databases.
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Also handles rewrites of db.
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Used for replication and binlogging.
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*/
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class Rpl_filter
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{
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public:
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Rpl_filter();
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~Rpl_filter();
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Rpl_filter(Rpl_filter const&);
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Rpl_filter& operator=(Rpl_filter const&);
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/* Checks - returns true if ok to replicate/log */
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#ifndef MYSQL_CLIENT
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bool tables_ok(const char* db, TABLE_LIST *tables);
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#endif
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bool db_ok(const char* db);
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bool db_ok_with_wild_table(const char *db);
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bool is_on();
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/* Setters - add filtering rules */
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int add_do_table(const char* table_spec);
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int add_ignore_table(const char* table_spec);
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int set_do_table(const char* table_spec);
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int set_ignore_table(const char* table_spec);
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int add_wild_do_table(const char* table_spec);
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int add_wild_ignore_table(const char* table_spec);
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int set_wild_do_table(const char* table_spec);
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int set_wild_ignore_table(const char* table_spec);
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int add_do_db(const char* db_spec);
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int add_ignore_db(const char* db_spec);
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int set_do_db(const char* db_spec);
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int set_ignore_db(const char* db_spec);
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void add_db_rewrite(const char* from_db, const char* to_db);
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/* Getters - to get information about current rules */
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void get_do_table(String* str);
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void get_ignore_table(String* str);
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void get_wild_do_table(String* str);
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void get_wild_ignore_table(String* str);
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bool rewrite_db_is_empty();
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const char* get_rewrite_db(const char* db, size_t *new_len);
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void copy_rewrite_db(Rpl_filter *from);
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I_List<i_string>* get_do_db();
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I_List<i_string>* get_ignore_db();
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void get_do_db(String* str);
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void get_ignore_db(String* str);
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private:
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bool table_rules_on;
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void init_table_rule_hash(HASH* h, bool* h_inited);
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void init_table_rule_array(DYNAMIC_ARRAY* a, bool* a_inited);
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int add_table_rule(HASH* h, const char* table_spec);
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int add_wild_table_rule(DYNAMIC_ARRAY* a, const char* table_spec);
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typedef int (Rpl_filter::*Add_filter)(char const*);
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int parse_filter_rule(const char* spec, Add_filter func);
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void free_string_array(DYNAMIC_ARRAY *a);
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void free_string_list(I_List<i_string> *l);
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void table_rule_ent_hash_to_str(String* s, HASH* h, bool inited);
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void table_rule_ent_dynamic_array_to_str(String* s, DYNAMIC_ARRAY* a,
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bool inited);
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void db_rule_ent_list_to_str(String* s, I_List<i_string>* l);
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TABLE_RULE_ENT* find_wild(DYNAMIC_ARRAY *a, const char* key, int len);
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int add_string_list(I_List<i_string> *list, const char* spec);
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/*
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Those 4 structures below are uninitialized memory unless the
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corresponding *_inited variables are "true".
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*/
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HASH do_table;
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HASH ignore_table;
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DYNAMIC_ARRAY wild_do_table;
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DYNAMIC_ARRAY wild_ignore_table;
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bool do_table_inited;
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bool ignore_table_inited;
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bool wild_do_table_inited;
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bool wild_ignore_table_inited;
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I_List<i_string> do_db;
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I_List<i_string> ignore_db;
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I_List<i_string_pair> rewrite_db;
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};
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extern Rpl_filter *global_rpl_filter;
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extern Rpl_filter *binlog_filter;
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#endif // RPL_FILTER_H
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