FM / private

/usr/include/mysql/server/private

Name	Size	Mode	Actions
atomic/	-	0755	rm
data/	-	0755	rm
providers/	-	0755	rm
aligned.h	1136	0644	edit dl rm
aria_backup.h	1787	0644	edit dl rm
assume_aligned.h	2350	0644	edit dl rm
authors.h	10141	0644	edit dl rm
backup.h	1703	0644	edit dl rm
bounded_queue.h	6093	0644	edit dl rm
client_settings.h	1935	0644	edit dl rm
compat56.h	2280	0644	edit dl rm
config.h	14543	0644	edit dl rm
contributors.h	4878	0644	edit dl rm
create_options.h	4193	0644	edit dl rm
create_tmp_table.h	2808	0644	edit dl rm
cset_narrowing.h	3968	0644	edit dl rm
custom_conf.h	1082	0644	edit dl rm
datadict.h	1700	0644	edit dl rm
ddl_log.h	12807	0644	edit dl rm
debug.h	1234	0644	edit dl rm
debug_sync.h	2046	0644	edit dl rm
derived_handler.h	2379	0644	edit dl rm
derror.h	980	0644	edit dl rm
des_key_file.h	1236	0644	edit dl rm
discover.h	1570	0644	edit dl rm
dur_prop.h	1082	0644	edit dl rm
embedded_priv.h	1733	0644	edit dl rm
events.h	4704	0644	edit dl rm
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event_db_repository.h	3648	0644	edit dl rm
event_parse_data.h	2899	0644	edit dl rm
event_queue.h	3438	0644	edit dl rm
event_scheduler.h	3290	0644	edit dl rm
field.h	222336	0644	edit dl rm
field_comp.h	1174	0644	edit dl rm
filesort.h	7283	0644	edit dl rm
filesort_utils.h	8195	0644	edit dl rm
ft_global.h	3113	0644	edit dl rm
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grant.h	2758	0644	edit dl rm
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handler.h	199730	0644	edit dl rm
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ha_partition.h	64696	0644	edit dl rm
ha_sequence.h	6245	0644	edit dl rm
heap.h	9480	0644	edit dl rm
hostname.h	5419	0644	edit dl rm
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init.h	852	0644	edit dl rm
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maria.h	5872	0644	edit dl rm
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message.h	1195	0644	edit dl rm
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mysqld.h	41063	0644	edit dl rm
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my_apc.h	4747	0644	edit dl rm
my_atomic.h	7281	0644	edit dl rm
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my_base.h	27656	0644	edit dl rm
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my_counter.h	1721	0644	edit dl rm
my_cpu.h	4855	0644	edit dl rm
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my_decimal.h	14489	0644	edit dl rm
my_default.h	1880	0644	edit dl rm
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my_libwrap.h	1183	0644	edit dl rm
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partition_element.h	5428	0644	edit dl rm
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password.h	1170	0644	edit dl rm
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pfs_transaction_provider.h	2846	0644	edit dl rm
privilege.h	28889	0644	edit dl rm
probes_mysql.h	973	0644	edit dl rm
probes_mysql_nodtrace.h	6087	0644	edit dl rm
procedure.h	6819	0644	edit dl rm
protocol.h	12537	0644	edit dl rm
proxy_protocol.h	548	0644	edit dl rm
queues.h	3477	0644	edit dl rm
records.h	3147	0644	edit dl rm
replication.h	16130	0644	edit dl rm
repl_failsafe.h	1585	0644	edit dl rm
rijndael.h	1711	0644	edit dl rm
rowid_filter.h	15474	0644	edit dl rm
rpl_constants.h	3357	0644	edit dl rm
rpl_filter.h	4774	0644	edit dl rm
rpl_gtid.h	29939	0644	edit dl rm
rpl_injector.h	9621	0644	edit dl rm
rpl_mi.h	16638	0644	edit dl rm
rpl_parallel.h	18228	0644	edit dl rm
rpl_record.h	1585	0644	edit dl rm
rpl_record_old.h	1407	0644	edit dl rm
rpl_reporting.h	3713	0644	edit dl rm
rpl_rli.h	36070	0644	edit dl rm
rpl_tblmap.h	3177	0644	edit dl rm
rpl_utility.h	9630	0644	edit dl rm
scheduler.h	3199	0644	edit dl rm
scope.h	4393	0644	edit dl rm
select_handler.h	2228	0644	edit dl rm
semisync.h	2287	0644	edit dl rm
semisync_master.h	25766	0644	edit dl rm
semisync_master_ack_receiver.h	8709	0644	edit dl rm
semisync_slave.h	3736	0644	edit dl rm
service_versions.h	2285	0644	edit dl rm
session_tracker.h	14275	0644	edit dl rm
set_var.h	16551	0644	edit dl rm
slave.h	12275	0644	edit dl rm
socketpair.h	842	0644	edit dl rm
source_revision.h	67	0644	edit dl rm
sp.h	22588	0644	edit dl rm
span.h	3931	0644	edit dl rm
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sql_admin.h	2915	0644	edit dl rm
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sql_alter.h	15395	0644	edit dl rm
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sql_base.h	26041	0644	edit dl rm
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sql_binlog.h	895	0644	edit dl rm
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sql_bootstrap.h	1812	0644	edit dl rm
sql_cache.h	21676	0644	edit dl rm
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sql_db.h	2438	0644	edit dl rm
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sql_help.h	995	0644	edit dl rm
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sql_insert.h	5173	0644	edit dl rm
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sql_lex.h	174693	0644	edit dl rm
sql_lifo_buffer.h	9676	0644	edit dl rm
sql_limit.h	3187	0644	edit dl rm
sql_list.h	22391	0644	edit dl rm
sql_load.h	1276	0644	edit dl rm
sql_locale.h	2701	0644	edit dl rm
sql_manager.h	960	0644	edit dl rm
sql_mode.h	6735	0644	edit dl rm
sql_parse.h	8970	0644	edit dl rm
sql_partition.h	12674	0644	edit dl rm
sql_partition_admin.h	5940	0644	edit dl rm
sql_plist.h	7711	0644	edit dl rm
sql_plugin.h	7577	0644	edit dl rm
sql_plugin_compat.h	2237	0644	edit dl rm
sql_prepare.h	11409	0644	edit dl rm
sql_priv.h	18474	0644	edit dl rm
sql_profile.h	7816	0644	edit dl rm
sql_reload.h	1036	0644	edit dl rm
sql_rename.h	982	0644	edit dl rm
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sql_schema.h	3303	0644	edit dl rm
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sql_servers.h	1777	0644	edit dl rm
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table.h	118414	0644	edit dl rm
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wsrep_applier.h	2703	0644	edit dl rm
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Edit: /usr/include/mysql/server/private/slave.h (12275B)

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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