1 /* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
2 
3    This program is free software; you can redistribute it and/or modify
4    it under the terms of the GNU General Public License as published by
5    the Free Software Foundation; version 2 of the License.
6 
7    This program is distributed in the hope that it will be useful,
8    but WITHOUT ANY WARRANTY; without even the implied warranty of
9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10    GNU General Public License for more details.
11 
12    You should have received a copy of the GNU General Public License
13    along with this program; if not, write to the Free Software
14    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
15 
16 #ifndef SQL_REPL_INCLUDED
17 #define SQL_REPL_INCLUDED
18 
19 #include "rpl_filter.h"
20 
21 #ifdef HAVE_REPLICATION
22 #include "slave.h"
23 
24 typedef struct st_slave_info
25 {
26   uint32 server_id;
27   uint32 rpl_recovery_rank, master_id;
28   char host[HOSTNAME_LENGTH*SYSTEM_CHARSET_MBMAXLEN+1];
29   char user[USERNAME_LENGTH+1];
30   char password[MAX_PASSWORD_LENGTH*SYSTEM_CHARSET_MBMAXLEN+1];
31   uint16 port;
32   THD* thd;
33 } SLAVE_INFO;
34 
35 struct slave_connection_state;
36 
37 extern my_bool opt_show_slave_auth_info;
38 extern char *master_host, *master_info_file;
39 
40 extern int max_binlog_dump_events;
41 extern my_bool opt_sporadic_binlog_dump_fail;
42 
43 int start_slave(THD* thd, Master_info* mi, bool net_report);
44 int stop_slave(THD* thd, Master_info* mi, bool net_report);
45 bool change_master(THD* thd, Master_info* mi, bool *master_info_added);
46 bool mysql_show_binlog_events(THD* thd);
47 int reset_slave(THD *thd, Master_info* mi);
48 int reset_master(THD* thd, rpl_gtid *init_state, uint32 init_state_len,
49                  ulong next_log_number);
50 bool purge_master_logs(THD* thd, const char* to_log);
51 bool purge_master_logs_before_date(THD* thd, time_t purge_time);
52 bool log_in_use(const char* log_name);
53 void adjust_linfo_offsets(my_off_t purge_offset);
54 void show_binlogs_get_fields(THD *thd, List<Item> *field_list);
55 bool show_binlogs(THD* thd);
56 extern int init_master_info(Master_info* mi);
57 void kill_zombie_dump_threads(uint32 slave_server_id);
58 int check_binlog_magic(IO_CACHE* log, const char** errmsg);
59 int compare_log_name(const char *log_1, const char *log_2);
60 
61 struct LOAD_FILE_IO_CACHE : public IO_CACHE
62 {
63   THD* thd;
64   my_off_t last_pos_in_file;
65   bool wrote_create_file, log_delayed;
66   int (*real_read_function)(struct st_io_cache *,uchar *,size_t);
67 };
68 
69 int log_loaded_block(IO_CACHE* file, uchar *Buffer, size_t Count);
70 int init_replication_sys_vars();
71 void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, ushort flags);
72 
73 #ifdef HAVE_PSI_INTERFACE
74 extern PSI_mutex_key key_LOCK_slave_state, key_LOCK_binlog_state;
75 #endif
76 void rpl_init_gtid_slave_state();
77 void rpl_deinit_gtid_slave_state();
78 void rpl_init_gtid_waiting();
79 void rpl_deinit_gtid_waiting();
80 int gtid_state_from_binlog_pos(const char *name, uint32 pos, String *out_str);
81 int rpl_append_gtid_state(String *dest, bool use_binlog);
82 int rpl_load_gtid_state(slave_connection_state *state, bool use_binlog);
83 bool rpl_gtid_pos_check(THD *thd, char *str, size_t len);
84 bool rpl_gtid_pos_update(THD *thd, char *str, size_t len);
85 #else
86 
87 struct LOAD_FILE_IO_CACHE : public IO_CACHE { };
88 
89 #endif /* HAVE_REPLICATION */
90 
91 #endif /* SQL_REPL_INCLUDED */
92