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ðŸ“ ..
ðŸ“„ aligned.h(1.11 KB)
ðŸ“„ aria_backup.h(1.51 KB)
ðŸ“„ assume_aligned.h(2.29 KB)
ðŸ“ atomic
ðŸ“„ authors.h(9.9 KB)
ðŸ“„ backup.h(1.66 KB)
ðŸ“„ bounded_queue.h(5.95 KB)
ðŸ“„ client_settings.h(1.89 KB)
ðŸ“„ compat56.h(2.23 KB)
ðŸ“„ config.h(14.23 KB)
ðŸ“„ contributors.h(4.76 KB)
ðŸ“„ create_options.h(4.42 KB)
ðŸ“„ create_tmp_table.h(2.74 KB)
ðŸ“„ cset_narrowing.h(3.88 KB)
ðŸ“„ custom_conf.h(1.06 KB)
ðŸ“„ datadict.h(1.66 KB)
ðŸ“„ ddl_log.h(12.39 KB)
ðŸ“„ debug.h(1.21 KB)
ðŸ“„ debug_sync.h(2 KB)
ðŸ“„ derived_handler.h(2.32 KB)
ðŸ“„ derror.h(980 B)
ðŸ“„ des_key_file.h(1.21 KB)
ðŸ“„ discover.h(1.53 KB)
ðŸ“„ dur_prop.h(1.06 KB)
ðŸ“„ embedded_priv.h(1.69 KB)
ðŸ“„ event_data_objects.h(4.09 KB)
ðŸ“„ event_db_repository.h(3.56 KB)
ðŸ“„ event_parse_data.h(2.83 KB)
ðŸ“„ event_queue.h(3.36 KB)
ðŸ“„ event_scheduler.h(3.21 KB)
ðŸ“„ events.h(4.59 KB)
ðŸ“„ field.h(215.25 KB)
ðŸ“„ field_comp.h(1.15 KB)
ðŸ“„ filesort.h(7.11 KB)
ðŸ“„ filesort_utils.h(8 KB)
ðŸ“„ ft_global.h(3.04 KB)
ðŸ“„ gcalc_slicescan.h(16.87 KB)
ðŸ“„ gcalc_tools.h(11.62 KB)
ðŸ“„ grant.h(2.69 KB)
ðŸ“„ group_by_handler.h(3.45 KB)
ðŸ“„ gstream.h(2.38 KB)
ðŸ“„ ha_handler_stats.h(2.28 KB)
ðŸ“„ ha_partition.h(62.9 KB)
ðŸ“„ ha_sequence.h(6.1 KB)
ðŸ“„ handle_connections_win.h(884 B)
ðŸ“„ handler.h(196.46 KB)
ðŸ“„ hash.h(4.34 KB)
ðŸ“„ hash_filo.h(5.55 KB)
ðŸ“„ heap.h(9.26 KB)
ðŸ“„ hostname.h(5.29 KB)
ðŸ“„ ilist.h(6.88 KB)
ðŸ“„ init.h(852 B)
ðŸ“„ innodb_priv.h(1.29 KB)
ðŸ“„ item.h(272.64 KB)
ðŸ“„ item_cmpfunc.h(131.86 KB)
ðŸ“„ item_create.h(11.23 KB)
ðŸ“„ item_func.h(133.45 KB)
ðŸ“„ item_geofunc.h(37.99 KB)
ðŸ“„ item_jsonfunc.h(21.99 KB)
ðŸ“„ item_row.h(5.1 KB)
ðŸ“„ item_strfunc.h(70.55 KB)
ðŸ“„ item_subselect.h(57.77 KB)
ðŸ“„ item_sum.h(70.59 KB)
ðŸ“„ item_timefunc.h(63.1 KB)
ðŸ“„ item_vers.h(4.23 KB)
ðŸ“„ item_windowfunc.h(33.51 KB)
ðŸ“„ item_xmlfunc.h(4.5 KB)
ðŸ“„ json_table.h(9.28 KB)
ðŸ“„ key.h(2.08 KB)
ðŸ“„ keycaches.h(1.95 KB)
ðŸ“„ lex.h(29.13 KB)
ðŸ“„ lex_string.h(3.97 KB)
ðŸ“„ lex_symbol.h(1.29 KB)
ðŸ“„ lf.h(6.31 KB)
ðŸ“„ lock.h(2.15 KB)
ðŸ“„ log.h(45 KB)
ðŸ“„ log_event.h(182.04 KB)
ðŸ“„ log_event_data_type.h(1.85 KB)
ðŸ“„ log_event_old.h(19.37 KB)
ðŸ“„ log_slow.h(2.38 KB)
ðŸ“„ maria.h(5.73 KB)
ðŸ“„ mariadb.h(1.25 KB)
ðŸ“„ mdl.h(37.57 KB)
ðŸ“„ mem_root_array.h(6.94 KB)
ðŸ“„ message.h(1.17 KB)
ðŸ“„ multi_range_read.h(22.64 KB)
ðŸ“„ my_alarm.h(2.37 KB)
ðŸ“„ my_apc.h(4.64 KB)
ðŸ“„ my_atomic.h(7.11 KB)
ðŸ“„ my_atomic_wrapper.h(2.98 KB)
ðŸ“„ my_base.h(26.57 KB)
ðŸ“„ my_bit.h(6.05 KB)
ðŸ“„ my_bitmap.h(5.74 KB)
ðŸ“„ my_check_opt.h(2.56 KB)
ðŸ“„ my_compare.h(10.93 KB)
ðŸ“„ my_counter.h(1.68 KB)
ðŸ“„ my_cpu.h(4.74 KB)
ðŸ“„ my_crypt.h(904 B)
ðŸ“„ my_decimal.h(14.15 KB)
ðŸ“„ my_default.h(1.84 KB)
ðŸ“„ my_handler_errors.h(4.77 KB)
ðŸ“„ my_json_writer.h(17.95 KB)
ðŸ“„ my_libwrap.h(1.16 KB)
ðŸ“„ my_md5.h(1.45 KB)
ðŸ“„ my_minidump.h(848 B)
ðŸ“„ my_nosys.h(1.4 KB)
ðŸ“„ my_rdtsc.h(8.23 KB)
ðŸ“„ my_rnd.h(1.04 KB)
ðŸ“„ my_service_manager.h(2 KB)
ðŸ“„ my_stack_alloc.h(6.34 KB)
ðŸ“„ my_stacktrace.h(3.14 KB)
ðŸ“„ my_time.h(10.22 KB)
ðŸ“„ my_tree.h(3.9 KB)
ðŸ“„ my_uctype.h(67.9 KB)
ðŸ“„ my_user.h(1.1 KB)
ðŸ“„ myisam.h(17.1 KB)
ðŸ“„ myisamchk.h(4.61 KB)
ðŸ“„ myisammrg.h(4.78 KB)
ðŸ“„ myisampack.h(14.58 KB)
ðŸ“„ mysqld.h(39.55 KB)
ðŸ“„ mysqld_default_groups.h(204 B)
ðŸ“„ mysqld_suffix.h(1.17 KB)
ðŸ“„ mysys_err.h(2.95 KB)
ðŸ“„ opt_range.h(58.19 KB)
ðŸ“„ opt_subselect.h(14.21 KB)
ðŸ“„ opt_trace.h(8.29 KB)
ðŸ“„ opt_trace_context.h(3.21 KB)
ðŸ“„ parse_file.h(4.28 KB)
ðŸ“„ partition_element.h(5.09 KB)
ðŸ“„ partition_info.h(18.85 KB)
ðŸ“„ password.h(1.14 KB)
ðŸ“„ pfs_file_provider.h(3.08 KB)
ðŸ“„ pfs_idle_provider.h(1.35 KB)
ðŸ“„ pfs_memory_provider.h(1.59 KB)
ðŸ“„ pfs_metadata_provider.h(1.85 KB)
ðŸ“„ pfs_socket_provider.h(2.21 KB)
ðŸ“„ pfs_stage_provider.h(1.52 KB)
ðŸ“„ pfs_statement_provider.h(4.25 KB)
ðŸ“„ pfs_table_provider.h(2.56 KB)
ðŸ“„ pfs_thread_provider.h(5.43 KB)
ðŸ“„ pfs_transaction_provider.h(2.78 KB)
ðŸ“„ privilege.h(27.97 KB)
ðŸ“„ probes_mysql.h(973 B)
ðŸ“„ probes_mysql_dtrace.h(32.23 KB)
ðŸ“„ probes_mysql_nodtrace.h(4.89 KB)
ðŸ“„ procedure.h(6.63 KB)
ðŸ“„ protocol.h(12.2 KB)
ðŸ“„ proxy_protocol.h(548 B)
ðŸ“„ queues.h(3.4 KB)
ðŸ“„ records.h(3.07 KB)
ðŸ“„ repl_failsafe.h(1.55 KB)
ðŸ“„ replication.h(15.73 KB)
ðŸ“„ rijndael.h(1.67 KB)
ðŸ“„ rowid_filter.h(15.11 KB)
ðŸ“„ rpl_constants.h(3.28 KB)
ðŸ“„ rpl_filter.h(4.43 KB)
ðŸ“„ rpl_gtid.h(13.36 KB)
ðŸ“„ rpl_injector.h(9.4 KB)
ðŸ“„ rpl_mi.h(14.64 KB)
ðŸ“„ rpl_parallel.h(17.05 KB)
ðŸ“„ rpl_record.h(1.55 KB)
ðŸ“„ rpl_record_old.h(1.37 KB)
ðŸ“„ rpl_reporting.h(3.63 KB)
ðŸ“„ rpl_rli.h(31.98 KB)
ðŸ“„ rpl_tblmap.h(3.1 KB)
ðŸ“„ rpl_utility.h(9.4 KB)
ðŸ“„ scheduler.h(3.12 KB)
ðŸ“„ scope.h(4.29 KB)
ðŸ“„ select_handler.h(2.18 KB)
ðŸ“„ semisync.h(2.23 KB)
ðŸ“„ semisync_master.h(24.96 KB)
ðŸ“„ semisync_master_ack_receiver.h(8.5 KB)
ðŸ“„ semisync_slave.h(3.65 KB)
ðŸ“„ service_versions.h(2 KB)
ðŸ“„ session_tracker.h(13.94 KB)
ðŸ“„ set_var.h(16.16 KB)
ðŸ“„ slave.h(11.99 KB)
ðŸ“„ socketpair.h(842 B)
ðŸ“„ source_revision.h(67 B)
ðŸ“„ sp.h(22.06 KB)
ðŸ“„ sp_cache.h(2 KB)
ðŸ“„ sp_head.h(63 KB)
ðŸ“„ sp_pcontext.h(24.31 KB)
ðŸ“„ sp_rcontext.h(14 KB)
ðŸ“„ span.h(3.84 KB)
ðŸ“„ spatial.h(21.78 KB)
ðŸ“„ sql_acl.h(13.8 KB)
ðŸ“„ sql_admin.h(2.85 KB)
ðŸ“„ sql_alloc.h(1.69 KB)
ðŸ“„ sql_alter.h(14.92 KB)
ðŸ“„ sql_analyse.h(10.86 KB)
ðŸ“„ sql_analyze_stmt.h(12.38 KB)
ðŸ“„ sql_array.h(6.71 KB)
ðŸ“„ sql_audit.h(13.62 KB)
ðŸ“„ sql_base.h(25.27 KB)
ðŸ“„ sql_basic_types.h(9.3 KB)
ðŸ“„ sql_binlog.h(895 B)
ðŸ“„ sql_bitmap.h(7.66 KB)
ðŸ“„ sql_bootstrap.h(1.77 KB)
ðŸ“„ sql_cache.h(21.17 KB)
ðŸ“„ sql_callback.h(1.51 KB)
ðŸ“„ sql_class.h(261.11 KB)
ðŸ“„ sql_cmd.h(9.2 KB)
ðŸ“„ sql_connect.h(3.99 KB)
ðŸ“„ sql_const.h(10.96 KB)
ðŸ“„ sql_crypt.h(1.4 KB)
ðŸ“„ sql_cte.h(16.15 KB)
ðŸ“„ sql_cursor.h(2.26 KB)
ðŸ“„ sql_db.h(2.38 KB)
ðŸ“„ sql_debug.h(5.51 KB)
ðŸ“„ sql_delete.h(1.31 KB)
ðŸ“„ sql_derived.h(1.26 KB)
ðŸ“„ sql_digest.h(3.73 KB)
ðŸ“„ sql_digest_stream.h(1.53 KB)
ðŸ“„ sql_do.h(954 B)
ðŸ“„ sql_error.h(38.66 KB)
ðŸ“„ sql_explain.h(28.34 KB)
ðŸ“„ sql_expression_cache.h(4.26 KB)
ðŸ“„ sql_get_diagnostics.h(7.68 KB)
ðŸ“„ sql_handler.h(2.84 KB)
ðŸ“„ sql_help.h(995 B)
ðŸ“„ sql_hset.h(3.32 KB)
ðŸ“„ sql_i_s.h(8.04 KB)
ðŸ“„ sql_insert.h(2.59 KB)
ðŸ“„ sql_join_cache.h(47.53 KB)
ðŸ“„ sql_lex.h(168.5 KB)
ðŸ“„ sql_lifo_buffer.h(9.45 KB)
ðŸ“„ sql_limit.h(3.11 KB)
ðŸ“„ sql_list.h(21.93 KB)
ðŸ“„ sql_load.h(1.25 KB)
ðŸ“„ sql_locale.h(2.64 KB)
ðŸ“„ sql_manager.h(960 B)
ðŸ“„ sql_mode.h(6.58 KB)
ðŸ“„ sql_parse.h(8.43 KB)
ðŸ“„ sql_partition.h(11.79 KB)
ðŸ“„ sql_partition_admin.h(5.8 KB)
ðŸ“„ sql_plist.h(7.55 KB)
ðŸ“„ sql_plugin.h(7.37 KB)
ðŸ“„ sql_plugin_compat.h(2.18 KB)
ðŸ“„ sql_prepare.h(11.14 KB)
ðŸ“„ sql_priv.h(18.16 KB)
ðŸ“„ sql_profile.h(7.63 KB)
ðŸ“„ sql_reload.h(1.01 KB)
ðŸ“„ sql_rename.h(982 B)
ðŸ“„ sql_repl.h(2.97 KB)
ðŸ“„ sql_schema.h(3.23 KB)
ðŸ“„ sql_select.h(86.81 KB)
ðŸ“„ sql_sequence.h(5.06 KB)
ðŸ“„ sql_servers.h(1.74 KB)
ðŸ“„ sql_show.h(9.39 KB)
ðŸ“„ sql_signal.h(3.28 KB)
ðŸ“„ sql_sort.h(21.45 KB)
ðŸ“„ sql_statistics.h(12.16 KB)
ðŸ“„ sql_string.h(38.84 KB)
ðŸ“„ sql_table.h(9.39 KB)
ðŸ“„ sql_tablespace.h(956 B)
ðŸ“„ sql_test.h(1.55 KB)
ðŸ“„ sql_time.h(8.18 KB)
ðŸ“„ sql_trigger.h(12.04 KB)
ðŸ“„ sql_truncate.h(2.03 KB)
ðŸ“„ sql_tvc.h(2.36 KB)
ðŸ“„ sql_type.h(288.51 KB)
ðŸ“„ sql_type_fixedbin.h(62.81 KB)
ðŸ“„ sql_type_fixedbin_storage.h(5.34 KB)
ðŸ“„ sql_type_geom.h(18.64 KB)
ðŸ“„ sql_type_int.h(9.77 KB)
ðŸ“„ sql_type_json.h(6.01 KB)
ðŸ“„ sql_type_real.h(1.23 KB)
ðŸ“„ sql_type_string.h(1.59 KB)
ðŸ“„ sql_udf.h(4.74 KB)
ðŸ“„ sql_union.h(1.04 KB)
ðŸ“„ sql_update.h(1.88 KB)
ðŸ“„ sql_view.h(2.41 KB)
ðŸ“„ sql_window.h(6.65 KB)
ðŸ“„ ssl_compat.h(3.07 KB)
ðŸ“„ strfunc.h(2.22 KB)
ðŸ“„ structs.h(25.76 KB)
ðŸ“„ sys_vars_shared.h(2.67 KB)
ðŸ“„ t_ctype.h(5.51 KB)
ðŸ“„ table.h(113.03 KB)
ðŸ“„ table_cache.h(4.13 KB)
ðŸ“„ thr_alarm.h(2.86 KB)
ðŸ“„ thr_lock.h(7.18 KB)
ðŸ“„ thr_malloc.h(1.17 KB)
ðŸ“„ thr_timer.h(1.53 KB)
ðŸ“„ thread_cache.h(5.77 KB)
ðŸ“„ threadpool.h(4.7 KB)
ðŸ“„ threadpool_generic.h(3.88 KB)
ðŸ“„ threadpool_winsockets.h(2.24 KB)
ðŸ“„ transaction.h(1.43 KB)
ðŸ“„ tzfile.h(4.9 KB)
ðŸ“„ tztime.h(3.32 KB)
ðŸ“„ uniques.h(4.12 KB)
ðŸ“„ unireg.h(7.54 KB)
ðŸ“„ vers_string.h(2.47 KB)
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ðŸ“„ waiting_threads.h(4.43 KB)
ðŸ“„ welcome_copyright_notice.h(1.19 KB)
ðŸ“„ win_tzname_data.h(6.35 KB)
ðŸ“„ winservice.h(1.17 KB)
ðŸ“„ wqueue.h(1.53 KB)
ðŸ“„ wsrep.h(3.23 KB)
ðŸ“„ wsrep_applier.h(2.64 KB)
ðŸ“„ wsrep_binlog.h(3.36 KB)
ðŸ“„ wsrep_client_service.h(2.5 KB)
ðŸ“„ wsrep_client_state.h(1.53 KB)
ðŸ“„ wsrep_condition_variable.h(1.45 KB)
ðŸ“„ wsrep_high_priority_service.h(4.8 KB)
ðŸ“„ wsrep_mutex.h(1.19 KB)
ðŸ“„ wsrep_mysqld.h(20.64 KB)
ðŸ“„ wsrep_mysqld_c.h(1.2 KB)
ðŸ“„ wsrep_on.h(1.68 KB)
ðŸ“„ wsrep_priv.h(1.6 KB)
ðŸ“„ wsrep_schema.h(4.83 KB)
ðŸ“„ wsrep_server_service.h(3.55 KB)
ðŸ“„ wsrep_server_state.h(2.23 KB)
ðŸ“„ wsrep_sst.h(3.86 KB)
ðŸ“„ wsrep_storage_service.h(1.77 KB)
ðŸ“„ wsrep_thd.h(10.9 KB)
ðŸ“„ wsrep_trans_observer.h(17.69 KB)
ðŸ“„ wsrep_types.h(997 B)
ðŸ“„ wsrep_utils.h(9.07 KB)
ðŸ“„ wsrep_var.h(4.5 KB)
ðŸ“„ wsrep_xid.h(1.51 KB)
ðŸ“„ xa.h(1.8 KB)

Editing: slave.h

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 02110-1335  USA */

#ifndef SLAVE_H
#define SLAVE_H

/**
  MASTER_DELAY can be at most (1 << 31) - 1.
*/
#define MASTER_DELAY_MAX (0x7FFFFFFF)
#if INT_MAX < 0x7FFFFFFF
#error "don't support platforms where INT_MAX < 0x7FFFFFFF"
#endif

/**
  @defgroup Replication Replication
  @{

@file
*/

/** 
   Some of defines are need in parser even though replication is not 
   compiled in (embedded).
*/

/**
   The maximum is defined as (ULONG_MAX/1000) with 4 bytes ulong
*/
#define SLAVE_MAX_HEARTBEAT_PERIOD 4294967

#ifdef HAVE_REPLICATION

#include "log.h"
#include "my_list.h"
#include "rpl_filter.h"
#include "rpl_tblmap.h"
#include "rpl_gtid.h"
#include "log_event.h"

#define SLAVE_NET_TIMEOUT  60

#define MAX_SLAVE_ERROR    ER_ERROR_LAST+1

#define MAX_REPLICATION_THREAD 64

// Forward declarations
class Relay_log_info;
class Master_info;
class Master_info_index;
struct rpl_group_info;
struct rpl_parallel_thread;

int init_intvar_from_file(int* var, IO_CACHE* f, int default_val);
int init_strvar_from_file(char *var, int max_size, IO_CACHE *f,
                          const char *default_val);
int init_floatvar_from_file(float* var, IO_CACHE* f, float default_val);
int init_dynarray_intvar_from_file(DYNAMIC_ARRAY* arr, IO_CACHE* f);

/*****************************************************************************

MySQL Replication

Replication is implemented via two types of threads:

I/O Thread - One of these threads is started for each master server.
                 They maintain a connection to their master server, read log
                 events from the master as they arrive, and queues them into
                 a single, shared relay log file.  A Master_info 
                 represents each of these threads.

SQL Thread - One of these threads is started and reads from the relay log
                 file, executing each event.  A Relay_log_info 
                 represents this thread.

Buffering in the relay log file makes it unnecessary to reread events from
  a master server across a slave restart.  It also decouples the slave from
  the master where long-running updates and event logging are concerned--ie
  it can continue to log new events while a slow query executes on the slave.

*****************************************************************************/

/*
  MUTEXES in replication:

LOCK_active_mi: [note: this was originally meant for multimaster, to switch
  from a master to another, to protect active_mi] It is used to SERIALIZE ALL
  administrative commands of replication: START SLAVE, STOP SLAVE, CHANGE
  MASTER, RESET SLAVE, end_slave() (when mysqld stops) [init_slave() does not
  need it it's called early]. Any of these commands holds the mutex from the
  start till the end. This thus protects us against a handful of deadlocks
  (consider start_slave_thread() which, when starting the I/O thread, releases
  mi->run_lock, keeps rli->run_lock, and tries to re-acquire mi->run_lock).

Currently active_mi never moves (it's created at startup and deleted at
  shutdown, and not changed: it always points to the same Master_info struct),
  because we don't have multimaster. So for the moment, mi does not move, and
  mi->rli does not either.

In Master_info: run_lock, data_lock
  run_lock protects all information about the run state: slave_running, thd
  and the existence of the I/O thread (to stop/start it, you need this mutex).
  data_lock protects some moving members of the struct: counters (log name,
  position) and relay log (MYSQL_BIN_LOG object).

In Relay_log_info: run_lock, data_lock
  see Master_info
  However, note that run_lock does not protect
  Relay_log_info.run_state; that is protected by data_lock.
  
  Order of acquisition: if you want to have LOCK_active_mi and a run_lock, you
  must acquire LOCK_active_mi first.

In MYSQL_BIN_LOG: LOCK_log, LOCK_index of the binlog and the relay log
  LOCK_log: when you write to it. LOCK_index: when you create/delete a binlog
  (so that you have to update the .index file).
*/

extern ulong master_retry_count;
extern MY_BITMAP slave_error_mask;
extern char slave_skip_error_names[];
extern bool use_slave_mask;
extern char slave_transaction_retry_error_names[];
extern uint *slave_transaction_retry_errors;
extern uint slave_transaction_retry_error_length;
extern char *slave_load_tmpdir;
extern char *master_info_file;
extern MYSQL_PLUGIN_IMPORT char *relay_log_info_file;
extern char *opt_relay_logname, *opt_relaylog_index_name;
extern my_bool opt_skip_slave_start, opt_reckless_slave;
extern my_bool opt_log_slave_updates;
extern char *opt_slave_skip_errors;
extern char *opt_slave_transaction_retry_errors;
extern my_bool opt_replicate_annotate_row_events;
extern ulonglong relay_log_space_limit;
extern ulonglong opt_read_binlog_speed_limit;
extern ulonglong slave_skipped_errors;
extern const char *relay_log_index;
extern const char *relay_log_basename;

/*
  4 possible values for Master_info::slave_running and
  Relay_log_info::slave_running.
  The values 0,1,2,3 are very important: to keep the diff small, I didn't
  substitute places where we use 0/1 with the newly defined symbols.
  So don't change these values.
  The same way, code is assuming that in Relay_log_info we use only values
  0/1.
  I started with using an enum, but
  enum_variable=1; is not legal so would have required many line changes.
*/
#define MYSQL_SLAVE_NOT_RUN         0
#define MYSQL_SLAVE_RUN_NOT_CONNECT 1
#define MYSQL_SLAVE_RUN_CONNECT     2
#define MYSQL_SLAVE_RUN_READING     3

#define RPL_LOG_NAME (rli->group_master_log_name[0] ? rli->group_master_log_name :\
 "FIRST")
#define IO_RPL_LOG_NAME (mi->master_log_name[0] ? mi->master_log_name :\
 "FIRST")

/*
  If the following is set, if first gives an error, second will be
  tried. Otherwise, if first fails, we fail.
*/
#define SLAVE_FORCE_ALL 4

/*
  Values for the option --replicate-events-marked-for-skip.
  Must match the names in replicate_events_marked_for_skip_names in sys_vars.cc
*/
#define RPL_SKIP_REPLICATE 0
#define RPL_SKIP_FILTER_ON_SLAVE 1
#define RPL_SKIP_FILTER_ON_MASTER 2

int init_slave();
int init_recovery(Master_info* mi, const char** errmsg);
bool init_slave_skip_errors(const char* arg);
bool init_slave_transaction_retry_errors(const char* arg);
int register_slave_on_master(MYSQL* mysql);
int terminate_slave_threads(Master_info* mi, int thread_mask,
			     bool skip_lock = 0);
int start_slave_threads(THD *thd,
                        bool need_slave_mutex, bool wait_for_start,
			Master_info* mi, const char* master_info_fname,
			const char* slave_info_fname, int thread_mask);
/*
  cond_lock is usually same as start_lock. It is needed for the case when
  start_lock is 0 which happens if start_slave_thread() is called already
  inside the start_lock section, but at the same time we want a
  mysql_cond_wait() on start_cond, start_lock
*/
int start_slave_thread(
#ifdef HAVE_PSI_INTERFACE
                       PSI_thread_key thread_key,
#endif
                       pthread_handler h_func,
                       mysql_mutex_t *start_lock,
                       mysql_mutex_t *cond_lock,
                       mysql_cond_t *start_cond,
                       volatile uint *slave_running,
                       volatile ulong *slave_run_id,
                       Master_info *mi);

/* If fd is -1, dump to NET */
int mysql_table_dump(THD* thd, const char* db,
		     const char* tbl_name, int fd = -1);

/* retrieve table from master and copy to slave*/
int fetch_master_table(THD* thd, const char* db_name, const char* table_name,
		       Master_info* mi, MYSQL* mysql, bool overwrite);

void show_master_info_get_fields(THD *thd, List<Item> *field_list,
                                     bool full, size_t gtid_pos_length);
bool show_master_info(THD* thd, Master_info* mi, bool full);
bool show_all_master_info(THD* thd);
void show_binlog_info_get_fields(THD *thd, List<Item> *field_list);
bool show_binlog_info(THD* thd);
bool rpl_master_has_bug(const Relay_log_info *rli, uint bug_id, bool report,
                        bool (*pred)(const void *), const void *param,
                        bool maria_master= false);
bool rpl_master_erroneous_autoinc(THD* thd);

const char *print_slave_db_safe(const char *db);
void skip_load_data_infile(NET* net);

void slave_prepare_for_shutdown();
void end_slave(); /* release slave threads */
void close_active_mi(); /* clean up slave threads data */
void clear_until_condition(Relay_log_info* rli);
void clear_slave_error(Relay_log_info* rli);
void end_relay_log_info(Relay_log_info* rli);
void init_thread_mask(int* mask,Master_info* mi,bool inverse);
Format_description_log_event *
read_relay_log_description_event(IO_CACHE *cur_log, ulonglong start_pos,
                                 const char **errmsg);

int init_relay_log_pos(Relay_log_info* rli,const char* log,ulonglong pos,
		       bool need_data_lock, const char** errmsg,
                       bool look_for_description_event);

int purge_relay_logs(Relay_log_info* rli, THD *thd, bool just_reset,
		     const char** errmsg);
void set_slave_thread_options(THD* thd);
void set_slave_thread_default_charset(THD *thd, rpl_group_info *rgi);
int rotate_relay_log(Master_info* mi);
int has_temporary_error(THD *thd);
int sql_delay_event(Log_event *ev, THD *thd, rpl_group_info *rgi);
int apply_event_and_update_pos(Log_event* ev, THD* thd,
                               struct rpl_group_info *rgi);
int apply_event_and_update_pos_for_parallel(Log_event* ev, THD* thd,
                                            struct rpl_group_info *rgi);

int init_intvar_from_file(int* var, IO_CACHE* f, int default_val);
int init_floatvar_from_file(float* var, IO_CACHE* f, float default_val);
int init_strvar_from_file(char *var, int max_size, IO_CACHE *f,
                          const char *default_val);
int init_dynarray_intvar_from_file(DYNAMIC_ARRAY* arr, IO_CACHE* f);

pthread_handler_t handle_slave_io(void *arg);
void slave_output_error_info(rpl_group_info *rgi, THD *thd);
pthread_handler_t handle_slave_sql(void *arg);
bool net_request_file(NET* net, const char* fname);
void slave_background_kill_request(THD *to_kill);
void slave_background_gtid_pos_create_request
        (rpl_slave_state::gtid_pos_table *table_entry);
void slave_background_gtid_pending_delete_request(void);

extern Master_info *active_mi; /* active_mi for multi-master */
extern Master_info *default_master_info; /* To replace active_mi */
extern Master_info_index *master_info_index;
extern LEX_CSTRING default_master_connection_name;
extern my_bool replicate_same_server_id;

extern int disconnect_slave_event_count, abort_slave_event_count ;

/* the master variables are defaults read from my.cnf or command line */
extern uint report_port;
extern char *master_info_file, *report_user;
extern char *report_host, *report_password;

extern I_List<THD> threads;

/*
  Check that a binlog event (read from the relay log) is valid to update
  last_master_timestamp. That is, a valid event is one with a consistent
  timestamp which originated from a primary server.
*/
static inline bool event_can_update_last_master_timestamp(Log_event *ev)
{
  return ev && !(ev->is_artificial_event() || ev->is_relay_log_event() ||
                 (ev->when == 0));
}

#else
#define close_active_mi() /* no-op */
#endif /* HAVE_REPLICATION */

/* masks for start/stop operations on io and sql slave threads */
#define SLAVE_IO  1
#define SLAVE_SQL 2

/**
  @} (end of group Replication)
*/

#endif

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