Edit File: mysqld.h
/* Copyright (c) 2006, 2016, Oracle and/or its affiliates. Copyright (c) 2010, 2019, MariaDB Corporation. 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 MYSQLD_INCLUDED #define MYSQLD_INCLUDED #include "sql_basic_types.h" /* query_id_t */ #include "sql_mode.h" /* Sql_mode_dependency */ #include "sql_plugin.h" #include "sql_bitmap.h" /* Bitmap */ #include "my_decimal.h" /* my_decimal */ #include "mysql_com.h" /* SERVER_VERSION_LENGTH */ #include "my_atomic.h" #include "mysql/psi/mysql_file.h" /* MYSQL_FILE */ #include "sql_list.h" /* I_List */ #include "sql_cmd.h" #include <my_rnd.h> #include "my_pthread.h" #include "my_rdtsc.h" class THD; class CONNECT; struct handlerton; class Time_zone; struct scheduler_functions; typedef struct st_mysql_show_var SHOW_VAR; #if MAX_INDEXES <= 64 typedef Bitmap<64> key_map; /* Used for finding keys */ #elif MAX_INDEXES > 128 #error "MAX_INDEXES values greater than 128 is not supported." #else typedef Bitmap<((MAX_INDEXES+7)/8*8)> key_map; /* Used for finding keys */ #endif /* Bits from testflag */ #define TEST_PRINT_CACHED_TABLES 1U #define TEST_NO_KEY_GROUP 2U #define TEST_MIT_THREAD 4U #define TEST_BLOCKING 8U #define TEST_KEEP_TMP_TABLES 16U #define TEST_READCHECK 64U /**< Force use of readcheck */ #define TEST_NO_EXTRA 128U #define TEST_CORE_ON_SIGNAL 256U /**< Give core if signal */ #define TEST_SIGINT 1024U /**< Allow sigint on threads */ #define TEST_SYNCHRONIZATION 2048U /**< get server to do sleep in some places */ /* Keep things compatible */ #define OPT_DEFAULT SHOW_OPT_DEFAULT #define OPT_SESSION SHOW_OPT_SESSION #define OPT_GLOBAL SHOW_OPT_GLOBAL extern MYSQL_PLUGIN_IMPORT MY_TIMER_INFO sys_timer_info; /* Values for --slave-parallel-mode Must match order in slave_parallel_mode_typelib in sys_vars.cc. */ enum enum_slave_parallel_mode { SLAVE_PARALLEL_NONE, SLAVE_PARALLEL_MINIMAL, SLAVE_PARALLEL_CONSERVATIVE, SLAVE_PARALLEL_OPTIMISTIC, SLAVE_PARALLEL_AGGRESSIVE }; /* Function prototypes */ void kill_mysql(THD *thd= 0); void close_connection(THD *thd, uint sql_errno= 0); void handle_connection_in_main_thread(CONNECT *thd); void create_thread_to_handle_connection(CONNECT *connect); void signal_thd_deleted(); void unlink_thd(THD *thd); bool one_thread_per_connection_end(THD *thd, bool put_in_cache); void flush_thread_cache(); void refresh_status(THD *thd); bool is_secure_file_path(char *path); void dec_connection_count(scheduler_functions *scheduler); extern void init_net_server_extension(THD *thd); extern "C" MYSQL_PLUGIN_IMPORT CHARSET_INFO *system_charset_info; extern MYSQL_PLUGIN_IMPORT CHARSET_INFO *files_charset_info ; extern MYSQL_PLUGIN_IMPORT CHARSET_INFO *national_charset_info; extern MYSQL_PLUGIN_IMPORT CHARSET_INFO *table_alias_charset; /** Character set of the buildin error messages loaded from errmsg.sys. */ extern CHARSET_INFO *error_message_charset_info; extern CHARSET_INFO *character_set_filesystem; extern MY_BITMAP temp_pool; extern bool opt_large_files; extern bool opt_update_log, opt_bin_log, opt_error_log, opt_bin_log_compress; extern uint opt_bin_log_compress_min_len; extern my_bool opt_log, opt_bootstrap; extern my_bool opt_backup_history_log; extern my_bool opt_backup_progress_log; extern my_bool opt_support_flashback; extern ulonglong log_output_options; extern ulong log_backup_output_options; extern bool opt_disable_networking, opt_skip_show_db; extern bool opt_skip_name_resolve; extern bool opt_ignore_builtin_innodb; extern my_bool opt_character_set_client_handshake; extern my_bool debug_assert_on_not_freed_memory; extern bool volatile abort_loop; extern bool volatile in_bootstrap; extern uint connection_count; extern my_bool opt_safe_user_create; extern my_bool opt_safe_show_db, opt_local_infile, opt_myisam_use_mmap; extern my_bool opt_slave_compressed_protocol, use_temp_pool; extern ulong slave_exec_mode_options, slave_ddl_exec_mode_options; extern ulong slave_retried_transactions; extern ulong transactions_multi_engine; extern ulong rpl_transactions_multi_engine; extern ulong transactions_gtid_foreign_engine; extern ulong slave_run_triggers_for_rbr; extern ulonglong slave_type_conversions_options; extern my_bool read_only, opt_readonly; extern MYSQL_PLUGIN_IMPORT my_bool lower_case_file_system; extern my_bool opt_enable_named_pipe, opt_sync_frm, opt_allow_suspicious_udfs; extern my_bool opt_secure_auth; extern const char *current_dbug_option; extern char* opt_secure_file_priv; extern char* opt_secure_backup_file_priv; extern size_t opt_secure_backup_file_priv_len; extern my_bool sp_automatic_privileges, opt_noacl; extern ulong use_stat_tables; extern my_bool opt_old_style_user_limits, trust_function_creators; extern uint opt_crash_binlog_innodb; extern const char *shared_memory_base_name; extern char *mysqld_unix_port; extern my_bool opt_enable_shared_memory; extern ulong opt_replicate_events_marked_for_skip; extern char *default_tz_name; extern Time_zone *default_tz; extern char *my_bind_addr_str; extern char *default_storage_engine, *default_tmp_storage_engine; extern char *enforced_storage_engine; extern char *gtid_pos_auto_engines; extern plugin_ref *opt_gtid_pos_auto_plugins; extern bool opt_endinfo, using_udf_functions; extern my_bool locked_in_memory; extern bool opt_using_transactions; extern ulong max_long_data_size; extern ulong current_pid; extern ulong expire_logs_days; extern my_bool relay_log_recovery; extern uint sync_binlog_period, sync_relaylog_period, sync_relayloginfo_period, sync_masterinfo_period; extern ulong opt_tc_log_size, tc_log_max_pages_used, tc_log_page_size; extern ulong tc_log_page_waits; extern my_bool relay_log_purge, opt_innodb_safe_binlog, opt_innodb; extern my_bool relay_log_recovery; extern uint select_errors,ha_open_options; extern ulonglong test_flags; extern uint protocol_version, mysqld_port, dropping_tables; extern ulong delay_key_write_options; extern char *opt_logname, *opt_slow_logname, *opt_bin_logname, *opt_relay_logname; extern char *opt_binlog_index_name; extern char *opt_backup_history_logname, *opt_backup_progress_logname, *opt_backup_settings_name; extern const char *log_output_str; extern const char *log_backup_output_str; /* System Versioning begin */ enum vers_system_time_t { SYSTEM_TIME_UNSPECIFIED = 0, SYSTEM_TIME_AS_OF, SYSTEM_TIME_FROM_TO, SYSTEM_TIME_BETWEEN, SYSTEM_TIME_BEFORE, // used for DELETE HISTORY ... BEFORE SYSTEM_TIME_HISTORY, // used for DELETE HISTORY SYSTEM_TIME_ALL }; struct vers_asof_timestamp_t { ulong type; my_time_t unix_time; ulong second_part; }; enum vers_alter_history_enum { VERS_ALTER_HISTORY_ERROR= 0, VERS_ALTER_HISTORY_KEEP }; /* System Versioning end */ extern char *mysql_home_ptr, *pidfile_name_ptr; extern MYSQL_PLUGIN_IMPORT char glob_hostname[FN_REFLEN]; extern char mysql_home[FN_REFLEN]; extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file; extern char default_logfile_name[FN_REFLEN]; extern char log_error_file[FN_REFLEN], *opt_tc_log_file; extern const double log_10[309]; extern ulonglong keybuff_size; extern ulonglong thd_startup_options; extern my_thread_id global_thread_id; extern ulong binlog_cache_use, binlog_cache_disk_use; extern ulong binlog_stmt_cache_use, binlog_stmt_cache_disk_use; extern ulong aborted_threads,aborted_connects; extern ulong delayed_insert_timeout; extern ulong delayed_insert_limit, delayed_queue_size; extern ulong delayed_insert_threads, delayed_insert_writes; extern ulong delayed_rows_in_use,delayed_insert_errors; extern int32 slave_open_temp_tables; extern ulonglong query_cache_size; extern ulong query_cache_limit; extern ulong query_cache_min_res_unit; extern ulong slow_launch_threads, slow_launch_time; extern MYSQL_PLUGIN_IMPORT ulong max_connections; extern uint max_digest_length; extern ulong max_connect_errors, connect_timeout; extern my_bool slave_allow_batching; extern my_bool allow_slave_start; extern LEX_CSTRING reason_slave_blocked; extern ulong slave_trans_retries; extern ulong slave_trans_retry_interval; extern uint slave_net_timeout; extern int max_user_connections; extern volatile ulong cached_thread_count; extern ulong what_to_log,flush_time; extern uint max_prepared_stmt_count, prepared_stmt_count; extern MYSQL_PLUGIN_IMPORT ulong open_files_limit; extern ulonglong binlog_cache_size, binlog_stmt_cache_size, binlog_file_cache_size; extern ulonglong max_binlog_cache_size, max_binlog_stmt_cache_size; extern ulong max_binlog_size; extern ulong slave_max_allowed_packet; extern ulong opt_binlog_rows_event_max_size; extern ulong rpl_recovery_rank, thread_cache_size; extern ulong stored_program_cache_size; extern ulong opt_slave_parallel_threads; extern ulong opt_slave_domain_parallel_threads; extern ulong opt_slave_parallel_max_queued; extern ulong opt_slave_parallel_mode; extern ulong opt_binlog_commit_wait_count; extern ulong opt_binlog_commit_wait_usec; extern my_bool opt_gtid_ignore_duplicates; extern ulong back_log; extern ulong executed_events; extern char language[FN_REFLEN]; extern "C" MYSQL_PLUGIN_IMPORT ulong server_id; extern ulong concurrency; extern time_t server_start_time, flush_status_time; extern char *opt_mysql_tmpdir, mysql_charsets_dir[]; extern size_t mysql_unpacked_real_data_home_len; extern MYSQL_PLUGIN_IMPORT MY_TMPDIR mysql_tmpdir_list; extern const char *first_keyword, *delayed_user; extern MYSQL_PLUGIN_IMPORT const char *my_localhost; extern MYSQL_PLUGIN_IMPORT const char **errmesg; /* Error messages */ extern const char *myisam_recover_options_str; extern const LEX_CSTRING in_left_expr_name, in_additional_cond, in_having_cond; extern SHOW_VAR status_vars[]; extern struct system_variables max_system_variables; extern struct system_status_var global_status_var; extern struct my_rnd_struct sql_rand; extern const char *opt_date_time_formats[]; extern handlerton *partition_hton; extern handlerton *myisam_hton; extern handlerton *heap_hton; extern const char *load_default_groups[]; extern struct my_option my_long_options[]; int handle_early_options(); extern int mysqld_server_started, mysqld_server_initialized; extern "C" MYSQL_PLUGIN_IMPORT int orig_argc; extern "C" MYSQL_PLUGIN_IMPORT char **orig_argv; extern pthread_attr_t connection_attrib; extern MYSQL_FILE *bootstrap_file; extern my_bool old_mode; extern LEX_STRING opt_init_connect, opt_init_slave; extern int bootstrap_error; extern I_List<THD> threads; extern char err_shared_dir[]; extern ulong connection_errors_select; extern ulong connection_errors_accept; extern ulong connection_errors_tcpwrap; extern ulong connection_errors_internal; extern ulong connection_errors_max_connection; extern ulong connection_errors_peer_addr; extern ulong log_warnings; extern my_bool encrypt_binlog; extern my_bool encrypt_tmp_disk_tables, encrypt_tmp_files; extern ulong encryption_algorithm; extern const char *encryption_algorithm_names[]; extern long opt_secure_timestamp; enum secure_timestamp { SECTIME_NO, SECTIME_SUPER, SECTIME_REPL, SECTIME_YES }; #ifdef HAVE_PSI_INTERFACE #ifdef HAVE_MMAP extern PSI_mutex_key key_PAGE_lock, key_LOCK_sync, key_LOCK_active, key_LOCK_pool, key_LOCK_pending_checkpoint; #endif /* HAVE_MMAP */ #ifdef HAVE_OPENSSL extern PSI_mutex_key key_LOCK_des_key_file; #endif extern PSI_mutex_key key_BINLOG_LOCK_index, key_BINLOG_LOCK_xid_list, key_BINLOG_LOCK_binlog_background_thread, key_LOCK_binlog_end_pos, key_delayed_insert_mutex, key_hash_filo_lock, key_LOCK_active_mi, key_LOCK_connection_count, key_LOCK_crypt, key_LOCK_delayed_create, key_LOCK_delayed_insert, key_LOCK_delayed_status, key_LOCK_error_log, key_LOCK_gdl, key_LOCK_global_system_variables, key_LOCK_logger, key_LOCK_manager, key_LOCK_prepared_stmt_count, key_LOCK_rpl_status, key_LOCK_server_started, key_LOCK_status, key_LOCK_show_status, key_LOCK_thd_data, key_LOCK_thd_kill, key_LOCK_user_conn, key_LOG_LOCK_log, key_master_info_data_lock, key_master_info_run_lock, key_master_info_sleep_lock, key_master_info_start_stop_lock, key_mutex_slave_reporting_capability_err_lock, key_relay_log_info_data_lock, key_relay_log_info_log_space_lock, key_relay_log_info_run_lock, key_rpl_group_info_sleep_lock, key_structure_guard_mutex, key_TABLE_SHARE_LOCK_ha_data, key_LOCK_start_thread, key_LOCK_error_messages, key_LOCK_thread_count, key_PARTITION_LOCK_auto_inc; extern PSI_mutex_key key_RELAYLOG_LOCK_index; extern PSI_mutex_key key_LOCK_relaylog_end_pos; extern PSI_mutex_key key_LOCK_slave_state, key_LOCK_binlog_state, key_LOCK_rpl_thread, key_LOCK_rpl_thread_pool, key_LOCK_parallel_entry; extern PSI_mutex_key key_TABLE_SHARE_LOCK_share, key_LOCK_stats, key_LOCK_global_user_client_stats, key_LOCK_global_table_stats, key_LOCK_global_index_stats, key_LOCK_wakeup_ready, key_LOCK_wait_commit, key_TABLE_SHARE_LOCK_rotation; extern PSI_mutex_key key_LOCK_gtid_waiting; extern PSI_rwlock_key key_rwlock_LOCK_grant, key_rwlock_LOCK_logger, key_rwlock_LOCK_sys_init_connect, key_rwlock_LOCK_sys_init_slave, key_rwlock_LOCK_system_variables_hash, key_rwlock_query_cache_query_lock, key_LOCK_SEQUENCE, key_rwlock_LOCK_vers_stats, key_rwlock_LOCK_stat_serial; #ifdef HAVE_MMAP extern PSI_cond_key key_PAGE_cond, key_COND_active, key_COND_pool; #endif /* HAVE_MMAP */ extern PSI_cond_key key_BINLOG_COND_xid_list, key_BINLOG_update_cond, key_BINLOG_COND_binlog_background_thread, key_BINLOG_COND_binlog_background_thread_end, key_COND_cache_status_changed, key_COND_manager, key_COND_rpl_status, key_COND_server_started, key_delayed_insert_cond, key_delayed_insert_cond_client, key_item_func_sleep_cond, key_master_info_data_cond, key_master_info_start_cond, key_master_info_stop_cond, key_master_info_sleep_cond, key_relay_log_info_data_cond, key_relay_log_info_log_space_cond, key_relay_log_info_start_cond, key_relay_log_info_stop_cond, key_rpl_group_info_sleep_cond, key_TABLE_SHARE_cond, key_user_level_lock_cond, key_COND_start_thread, key_COND_thread_count, key_COND_thread_cache, key_COND_flush_thread_cache; extern PSI_cond_key key_RELAYLOG_COND_relay_log_updated, key_RELAYLOG_COND_bin_log_updated, key_COND_wakeup_ready, key_COND_wait_commit; extern PSI_cond_key key_RELAYLOG_COND_queue_busy; extern PSI_cond_key key_TC_LOG_MMAP_COND_queue_busy; extern PSI_cond_key key_COND_rpl_thread, key_COND_rpl_thread_queue, key_COND_rpl_thread_stop, key_COND_rpl_thread_pool, key_COND_parallel_entry, key_COND_group_commit_orderer; extern PSI_cond_key key_COND_wait_gtid, key_COND_gtid_ignore_duplicates; extern PSI_cond_key key_TABLE_SHARE_COND_rotation; extern PSI_thread_key key_thread_bootstrap, key_thread_delayed_insert, key_thread_handle_manager, key_thread_kill_server, key_thread_main, key_thread_one_connection, key_thread_signal_hand, key_thread_slave_background, key_rpl_parallel_thread; extern PSI_file_key key_file_binlog, key_file_binlog_index, key_file_casetest, key_file_dbopt, key_file_des_key_file, key_file_ERRMSG, key_select_to_file, key_file_fileparser, key_file_frm, key_file_global_ddl_log, key_file_load, key_file_loadfile, key_file_log_event_data, key_file_log_event_info, key_file_master_info, key_file_misc, key_file_partition, key_file_pid, key_file_relay_log_info, key_file_send_file, key_file_tclog, key_file_trg, key_file_trn, key_file_init; extern PSI_file_key key_file_query_log, key_file_slow_log; extern PSI_file_key key_file_relaylog, key_file_relaylog_index; extern PSI_socket_key key_socket_tcpip, key_socket_unix, key_socket_client_connection; extern PSI_file_key key_file_binlog_state; void init_server_psi_keys(); #endif /* HAVE_PSI_INTERFACE */ /* MAINTAINER: Please keep this list in order, to limit merge collisions. Hint: grep PSI_stage_info | sort -u */ extern PSI_stage_info stage_apply_event; extern PSI_stage_info stage_after_create; extern PSI_stage_info stage_after_opening_tables; extern PSI_stage_info stage_after_table_lock; extern PSI_stage_info stage_allocating_local_table; extern PSI_stage_info stage_alter_inplace_prepare; extern PSI_stage_info stage_alter_inplace; extern PSI_stage_info stage_alter_inplace_commit; extern PSI_stage_info stage_after_apply_event; extern PSI_stage_info stage_changing_master; extern PSI_stage_info stage_checking_master_version; extern PSI_stage_info stage_checking_permissions; extern PSI_stage_info stage_checking_privileges_on_cached_query; extern PSI_stage_info stage_checking_query_cache_for_query; extern PSI_stage_info stage_cleaning_up; extern PSI_stage_info stage_closing_tables; extern PSI_stage_info stage_connecting_to_master; extern PSI_stage_info stage_converting_heap_to_myisam; extern PSI_stage_info stage_copying_to_group_table; extern PSI_stage_info stage_copying_to_tmp_table; extern PSI_stage_info stage_copy_to_tmp_table; extern PSI_stage_info stage_creating_delayed_handler; extern PSI_stage_info stage_creating_sort_index; extern PSI_stage_info stage_creating_table; extern PSI_stage_info stage_creating_tmp_table; extern PSI_stage_info stage_deleting_from_main_table; extern PSI_stage_info stage_deleting_from_reference_tables; extern PSI_stage_info stage_discard_or_import_tablespace; extern PSI_stage_info stage_end; extern PSI_stage_info stage_enabling_keys; extern PSI_stage_info stage_executing; extern PSI_stage_info stage_execution_of_init_command; extern PSI_stage_info stage_explaining; extern PSI_stage_info stage_finding_key_cache; extern PSI_stage_info stage_finished_reading_one_binlog_switching_to_next_binlog; extern PSI_stage_info stage_flushing_relay_log_and_master_info_repository; extern PSI_stage_info stage_flushing_relay_log_info_file; extern PSI_stage_info stage_freeing_items; extern PSI_stage_info stage_fulltext_initialization; extern PSI_stage_info stage_got_handler_lock; extern PSI_stage_info stage_got_old_table; extern PSI_stage_info stage_init; extern PSI_stage_info stage_init_update; extern PSI_stage_info stage_insert; extern PSI_stage_info stage_invalidating_query_cache_entries_table; extern PSI_stage_info stage_invalidating_query_cache_entries_table_list; extern PSI_stage_info stage_killing_slave; extern PSI_stage_info stage_logging_slow_query; extern PSI_stage_info stage_making_temp_file_append_before_load_data; extern PSI_stage_info stage_making_temp_file_create_before_load_data; extern PSI_stage_info stage_manage_keys; extern PSI_stage_info stage_master_has_sent_all_binlog_to_slave; extern PSI_stage_info stage_opening_tables; extern PSI_stage_info stage_optimizing; extern PSI_stage_info stage_preparing; extern PSI_stage_info stage_purging_old_relay_logs; extern PSI_stage_info stage_query_end; extern PSI_stage_info stage_starting_cleanup; extern PSI_stage_info stage_rollback; extern PSI_stage_info stage_rollback_implicit; extern PSI_stage_info stage_commit; extern PSI_stage_info stage_commit_implicit; extern PSI_stage_info stage_queueing_master_event_to_the_relay_log; extern PSI_stage_info stage_reading_event_from_the_relay_log; extern PSI_stage_info stage_recreating_table; extern PSI_stage_info stage_registering_slave_on_master; extern PSI_stage_info stage_removing_duplicates; extern PSI_stage_info stage_removing_tmp_table; extern PSI_stage_info stage_rename; extern PSI_stage_info stage_rename_result_table; extern PSI_stage_info stage_requesting_binlog_dump; extern PSI_stage_info stage_reschedule; extern PSI_stage_info stage_searching_rows_for_update; extern PSI_stage_info stage_sending_binlog_event_to_slave; extern PSI_stage_info stage_sending_cached_result_to_client; extern PSI_stage_info stage_sending_data; extern PSI_stage_info stage_setup; extern PSI_stage_info stage_slave_has_read_all_relay_log; extern PSI_stage_info stage_show_explain; extern PSI_stage_info stage_sorting; extern PSI_stage_info stage_sorting_for_group; extern PSI_stage_info stage_sorting_for_order; extern PSI_stage_info stage_sorting_result; extern PSI_stage_info stage_sql_thd_waiting_until_delay; extern PSI_stage_info stage_statistics; extern PSI_stage_info stage_storing_result_in_query_cache; extern PSI_stage_info stage_storing_row_into_queue; extern PSI_stage_info stage_system_lock; extern PSI_stage_info stage_unlocking_tables; extern PSI_stage_info stage_table_lock; extern PSI_stage_info stage_filling_schema_table; extern PSI_stage_info stage_update; extern PSI_stage_info stage_updating; extern PSI_stage_info stage_updating_main_table; extern PSI_stage_info stage_updating_reference_tables; extern PSI_stage_info stage_upgrading_lock; extern PSI_stage_info stage_user_lock; extern PSI_stage_info stage_user_sleep; extern PSI_stage_info stage_verifying_table; extern PSI_stage_info stage_waiting_for_delay_list; extern PSI_stage_info stage_waiting_for_gtid_to_be_written_to_binary_log; extern PSI_stage_info stage_waiting_for_handler_insert; extern PSI_stage_info stage_waiting_for_handler_lock; extern PSI_stage_info stage_waiting_for_handler_open; extern PSI_stage_info stage_waiting_for_insert; extern PSI_stage_info stage_waiting_for_master_to_send_event; extern PSI_stage_info stage_waiting_for_master_update; extern PSI_stage_info stage_waiting_for_relay_log_space; extern PSI_stage_info stage_waiting_for_slave_mutex_on_exit; extern PSI_stage_info stage_waiting_for_slave_thread_to_start; extern PSI_stage_info stage_waiting_for_query_cache_lock; extern PSI_stage_info stage_waiting_for_table_flush; extern PSI_stage_info stage_waiting_for_the_next_event_in_relay_log; extern PSI_stage_info stage_waiting_for_the_slave_thread_to_advance_position; extern PSI_stage_info stage_waiting_to_finalize_termination; extern PSI_stage_info stage_waiting_to_get_readlock; extern PSI_stage_info stage_binlog_waiting_background_tasks; extern PSI_stage_info stage_binlog_write; extern PSI_stage_info stage_binlog_processing_checkpoint_notify; extern PSI_stage_info stage_binlog_stopping_background_thread; extern PSI_stage_info stage_waiting_for_work_from_sql_thread; extern PSI_stage_info stage_waiting_for_prior_transaction_to_commit; extern PSI_stage_info stage_waiting_for_prior_transaction_to_start_commit; extern PSI_stage_info stage_waiting_for_room_in_worker_thread; extern PSI_stage_info stage_waiting_for_workers_idle; extern PSI_stage_info stage_waiting_for_ftwrl; extern PSI_stage_info stage_waiting_for_ftwrl_threads_to_pause; extern PSI_stage_info stage_waiting_for_rpl_thread_pool; extern PSI_stage_info stage_master_gtid_wait_primary; extern PSI_stage_info stage_master_gtid_wait; extern PSI_stage_info stage_gtid_wait_other_connection; extern PSI_stage_info stage_slave_background_process_request; extern PSI_stage_info stage_slave_background_wait_request; extern PSI_stage_info stage_waiting_for_deadlock_kill; #ifdef HAVE_PSI_STATEMENT_INTERFACE /** Statement instrumentation keys (sql). The last entry, at [SQLCOM_END], is for parsing errors. */ extern PSI_statement_info sql_statement_info[(uint) SQLCOM_END + 1]; /** Statement instrumentation keys (com). The last entry, at [COM_END], is for packet errors. */ extern PSI_statement_info com_statement_info[(uint) COM_END + 1]; /** Statement instrumentation key for replication. */ extern PSI_statement_info stmt_info_rpl; void init_sql_statement_info(); void init_com_statement_info(); #endif /* HAVE_PSI_STATEMENT_INTERFACE */ #ifndef __WIN__ extern pthread_t signal_thread; #endif #ifdef HAVE_OPENSSL extern struct st_VioSSLFd * ssl_acceptor_fd; #endif /* HAVE_OPENSSL */ extern ulonglong my_pcre_frame_size; /* The following variables were under INNODB_COMPABILITY_HOOKS */ extern my_bool opt_large_pages; extern uint opt_large_page_size; extern MYSQL_PLUGIN_IMPORT char lc_messages_dir[FN_REFLEN]; extern char *lc_messages_dir_ptr, *log_error_file_ptr; extern MYSQL_PLUGIN_IMPORT char reg_ext[FN_EXTLEN]; extern MYSQL_PLUGIN_IMPORT uint reg_ext_length; extern MYSQL_PLUGIN_IMPORT uint lower_case_table_names; extern MYSQL_PLUGIN_IMPORT bool mysqld_embedded; extern ulong specialflag; extern uint mysql_data_home_len; extern uint mysql_real_data_home_len; extern const char *mysql_real_data_home_ptr; extern ulong thread_handling; extern "C" MYSQL_PLUGIN_IMPORT char server_version[SERVER_VERSION_LENGTH]; extern char *server_version_ptr; extern bool using_custom_server_version; extern MYSQL_PLUGIN_IMPORT char mysql_real_data_home[]; extern char mysql_unpacked_real_data_home[]; extern MYSQL_PLUGIN_IMPORT struct system_variables global_system_variables; extern char default_logfile_name[FN_REFLEN]; extern char *my_proxy_protocol_networks; #define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list)) extern MYSQL_PLUGIN_IMPORT const key_map key_map_empty; extern MYSQL_PLUGIN_IMPORT key_map key_map_full; /* Should be threaded as const */ /* Server mutex locks and condition variables. */ extern mysql_mutex_t LOCK_item_func_sleep, LOCK_status, LOCK_show_status, LOCK_error_log, LOCK_delayed_insert, LOCK_short_uuid_generator, LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone, LOCK_slave_list, LOCK_active_mi, LOCK_manager, LOCK_user_conn, LOCK_prepared_stmt_count, LOCK_error_messages, LOCK_connection_count; extern MYSQL_PLUGIN_IMPORT mysql_mutex_t LOCK_thread_count, LOCK_global_system_variables; extern mysql_mutex_t LOCK_start_thread; #ifdef HAVE_OPENSSL extern char* des_key_file; extern mysql_mutex_t LOCK_des_key_file; #endif extern mysql_mutex_t LOCK_server_started; extern mysql_cond_t COND_server_started; extern mysql_rwlock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave; extern mysql_prlock_t LOCK_system_variables_hash; extern mysql_cond_t COND_thread_count, COND_start_thread; extern mysql_cond_t COND_manager; extern int32 thread_count, service_thread_count; extern char *opt_ssl_ca, *opt_ssl_capath, *opt_ssl_cert, *opt_ssl_cipher, *opt_ssl_key, *opt_ssl_crl, *opt_ssl_crlpath; extern MYSQL_PLUGIN_IMPORT pthread_key(THD*, THR_THD); #ifdef MYSQL_SERVER /** only options that need special treatment in get_one_option() deserve to be listed below */ enum options_mysqld { OPT_to_set_the_start_number=256, OPT_BINLOG_DO_DB, OPT_BINLOG_FORMAT, OPT_BINLOG_IGNORE_DB, OPT_BIN_LOG, OPT_BOOTSTRAP, OPT_CONSOLE, OPT_DEBUG_SYNC_TIMEOUT, OPT_DEPRECATED_OPTION, OPT_IGNORE_DB_DIRECTORY, OPT_ISAM_LOG, OPT_KEY_BUFFER_SIZE, OPT_KEY_CACHE_AGE_THRESHOLD, OPT_KEY_CACHE_BLOCK_SIZE, OPT_KEY_CACHE_DIVISION_LIMIT, OPT_KEY_CACHE_PARTITIONS, OPT_KEY_CACHE_CHANGED_BLOCKS_HASH_SIZE, OPT_LOG_BASENAME, OPT_LOG_ERROR, OPT_LOWER_CASE_TABLE_NAMES, OPT_MAX_LONG_DATA_SIZE, OPT_PLUGIN_LOAD, OPT_PLUGIN_LOAD_ADD, OPT_PFS_INSTRUMENT, OPT_REPLICATE_DO_DB, OPT_REPLICATE_DO_TABLE, OPT_REPLICATE_IGNORE_DB, OPT_REPLICATE_IGNORE_TABLE, OPT_REPLICATE_REWRITE_DB, OPT_REPLICATE_WILD_DO_TABLE, OPT_REPLICATE_WILD_IGNORE_TABLE, OPT_SAFE, OPT_SERVER_ID, OPT_SILENT, OPT_SKIP_HOST_CACHE, OPT_SLAVE_PARALLEL_MODE, OPT_SSL_CA, OPT_SSL_CAPATH, OPT_SSL_CERT, OPT_SSL_CIPHER, OPT_SSL_CRL, OPT_SSL_CRLPATH, OPT_SSL_KEY, OPT_THREAD_CONCURRENCY, OPT_WANT_CORE, #ifdef WITH_WSREP OPT_WSREP_CAUSAL_READS, OPT_WSREP_SYNC_WAIT, #endif /* WITH_WSREP */ OPT_MYSQL_COMPATIBILITY, OPT_MYSQL_TO_BE_IMPLEMENTED, OPT_which_is_always_the_last }; #endif /** Query type constants (usable as bitmap flags). */ enum enum_query_type { /// Nothing specific, ordinary SQL query. QT_ORDINARY= 0, /// In utf8. QT_TO_SYSTEM_CHARSET= (1 << 0), /// Without character set introducers. QT_WITHOUT_INTRODUCERS= (1 << 1), /// view internal representation (like QT_ORDINARY except ORDER BY clause) QT_VIEW_INTERNAL= (1 << 2), /// If identifiers should not include database names, where unambiguous QT_ITEM_IDENT_SKIP_DB_NAMES= (1 << 3), /// If identifiers should not include table names, where unambiguous QT_ITEM_IDENT_SKIP_TABLE_NAMES= (1 << 4), /// If Item_cache_wrapper should not print <expr_cache> QT_ITEM_CACHE_WRAPPER_SKIP_DETAILS= (1 << 5), /// If Item_subselect should print as just "(subquery#1)" /// rather than display the subquery body QT_ITEM_SUBSELECT_ID_ONLY= (1 << 6), /// If NULLIF(a,b) should print itself as /// CASE WHEN a_for_comparison=b THEN NULL ELSE a_for_return_value END /// when "a" was replaced to two different items /// (e.g. by equal fields propagation in optimize_cond()) /// or always as NULLIF(a, b). /// The default behaviour is to use CASE syntax when /// a_for_return_value is not the same as a_for_comparison. /// SHOW CREATE {VIEW|PROCEDURE|FUNCTION} and other cases where the /// original representation is required, should set this flag. QT_ITEM_ORIGINAL_FUNC_NULLIF= (1 << 7), /// This value means focus on readability, not on ability to parse back, etc. QT_EXPLAIN= QT_TO_SYSTEM_CHARSET | QT_ITEM_IDENT_SKIP_DB_NAMES | QT_ITEM_CACHE_WRAPPER_SKIP_DETAILS | QT_ITEM_SUBSELECT_ID_ONLY, QT_SHOW_SELECT_NUMBER= (1<<10), /// This is used for EXPLAIN EXTENDED extra warnings / Be more detailed /// Be more detailed than QT_EXPLAIN. /// Perhaps we should eventually include QT_ITEM_IDENT_SKIP_CURRENT_DATABASE /// here, as it would give better readable results QT_EXPLAIN_EXTENDED= QT_TO_SYSTEM_CHARSET| QT_SHOW_SELECT_NUMBER, // If an expression is constant, print the expression, not the value // it evaluates to. Should be used for error messages, so that they // don't reveal values. QT_NO_DATA_EXPANSION= (1 << 9), }; /* query_id */ extern query_id_t global_query_id; ATTRIBUTE_NORETURN void unireg_end(void); /* increment query_id and return it. */ inline __attribute__((warn_unused_result)) query_id_t next_query_id() { return my_atomic_add64_explicit(&global_query_id, 1, MY_MEMORY_ORDER_RELAXED); } inline query_id_t get_query_id() { return my_atomic_load64_explicit(&global_query_id, MY_MEMORY_ORDER_RELAXED); } /* increment global_thread_id and return it. */ extern __attribute__((warn_unused_result)) my_thread_id next_thread_id(void); /* TODO: Replace this with an inline function. */ #ifndef EMBEDDED_LIBRARY extern "C" void unireg_abort(int exit_code) __attribute__((noreturn)); #else extern "C" void unireg_clear(int exit_code); #define unireg_abort(exit_code) do { unireg_clear(exit_code); DBUG_RETURN(exit_code); } while(0) #endif inline void table_case_convert(char * name, uint length) { if (lower_case_table_names) files_charset_info->cset->casedn(files_charset_info, name, length, name, length); } extern void set_server_version(char *buf, size_t size); #define current_thd _current_thd() inline int set_current_thd(THD *thd) { return my_pthread_setspecific_ptr(THR_THD, thd); } /* @todo remove, make it static in ha_maria.cc currently it's needed for sql_select.cc */ extern handlerton *maria_hton; extern uint extra_connection_count; extern uint64 global_gtid_counter; extern my_bool opt_gtid_strict_mode; extern my_bool opt_userstat_running, debug_assert_if_crashed_table; extern uint mysqld_extra_port; extern ulong opt_progress_report_time; extern ulong extra_max_connections; extern ulonglong denied_connections; extern ulong thread_created; extern scheduler_functions *thread_scheduler, *extra_thread_scheduler; extern char *opt_log_basename; extern my_bool opt_master_verify_checksum; extern my_bool opt_stack_trace, disable_log_notes; extern my_bool opt_expect_abort; extern my_bool opt_slave_sql_verify_checksum; extern my_bool opt_mysql56_temporal_format, strict_password_validation; extern my_bool opt_explicit_defaults_for_timestamp; extern ulong binlog_checksum_options; extern bool max_user_connections_checking; extern ulong opt_binlog_dbug_fsync_sleep; extern uint volatile global_disable_checkpoint; extern my_bool opt_help; #endif /* MYSQLD_INCLUDED */