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Diffstat (limited to '')
| -rw-r--r-- | sql/mysqld.h | 959 |
1 files changed, 959 insertions, 0 deletions
diff --git a/sql/mysqld.h b/sql/mysqld.h new file mode 100644 index 00000000..142d2dba --- /dev/null +++ b/sql/mysqld.h @@ -0,0 +1,959 @@ +/* Copyright (c) 2006, 2016, Oracle and/or its affiliates. + Copyright (c) 2010, 2020, 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_counter.h" +#include "mysql/psi/mysql_file.h" /* MYSQL_FILE */ +#include "mysql/psi/mysql_socket.h" /* MYSQL_SOCKET */ +#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; + +/* 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); +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 unlink_thd(THD *thd); +void refresh_status(THD *thd); +bool is_secure_file_path(char *path); +extern void init_net_server_extension(THD *thd); +extern void handle_accepted_socket(MYSQL_SOCKET new_sock, MYSQL_SOCKET sock); +extern void create_new_thread(CONNECT *connect); + +extern void ssl_acceptor_stats_update(int sslaccept_ret); +extern int reinit_ssl(); + +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 MYSQL_PLUGIN_IMPORT bool volatile abort_loop; +extern Atomic_counter<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 my_bool opt_require_secure_transport; +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 MYSQL_PLUGIN_IMPORT 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 int server_socket_ai_family; +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 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, dropping_tables; +extern MYSQL_PLUGIN_IMPORT uint mysqld_port; +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, aborted_connects_preauth; +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 Atomic_counter<uint32_t> 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 uint max_password_errors; +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 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 binlog_row_metadata; +extern ulong 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 uint opt_gtid_cleanup_batch_size; +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 MYSQL_PLUGIN_IMPORT mysqld_server_started; +extern int 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 my_bool old_mode; +extern LEX_STRING opt_init_connect, opt_init_slave; +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; +extern uint default_password_lifetime; +extern my_bool disconnect_on_expired_password; + +enum secure_timestamp { SECTIME_NO, SECTIME_SUPER, SECTIME_REPL, SECTIME_YES }; + +#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_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_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_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, + key_rwlock_THD_list; + +#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; +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_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_cache, + key_file_binlog_index, key_file_binlog_index_cache, 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_ddl_log, + 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, + key_file_relaylog_cache, key_file_relaylog_index_cache; +extern PSI_socket_key key_socket_tcpip, key_socket_unix, + key_socket_client_connection; +extern PSI_file_key key_file_binlog_state; + +#ifdef HAVE_PSI_INTERFACE +void init_server_psi_keys(); +#endif /* HAVE_PSI_INTERFACE */ + +extern PSI_memory_key key_memory_locked_table_list; +extern PSI_memory_key key_memory_locked_thread_list; +extern PSI_memory_key key_memory_thd_transactions; +extern PSI_memory_key key_memory_delegate; +extern PSI_memory_key key_memory_acl_mem; +extern PSI_memory_key key_memory_acl_memex; +extern PSI_memory_key key_memory_acl_cache; +extern PSI_memory_key key_memory_thd_main_mem_root; +extern PSI_memory_key key_memory_help; +extern PSI_memory_key key_memory_frm; +extern PSI_memory_key key_memory_table_share; +extern PSI_memory_key key_memory_gdl; +extern PSI_memory_key key_memory_table_triggers_list; +extern PSI_memory_key key_memory_prepared_statement_map; +extern PSI_memory_key key_memory_prepared_statement_main_mem_root; +extern PSI_memory_key key_memory_protocol_rset_root; +extern PSI_memory_key key_memory_warning_info_warn_root; +extern PSI_memory_key key_memory_sp_cache; +extern PSI_memory_key key_memory_sp_head_main_root; +extern PSI_memory_key key_memory_sp_head_execute_root; +extern PSI_memory_key key_memory_sp_head_call_root; +extern PSI_memory_key key_memory_table_mapping_root; +extern PSI_memory_key key_memory_quick_range_select_root; +extern PSI_memory_key key_memory_quick_index_merge_root; +extern PSI_memory_key key_memory_quick_ror_intersect_select_root; +extern PSI_memory_key key_memory_quick_ror_union_select_root; +extern PSI_memory_key key_memory_quick_group_min_max_select_root; +extern PSI_memory_key key_memory_test_quick_select_exec; +extern PSI_memory_key key_memory_prune_partitions_exec; +extern PSI_memory_key key_memory_binlog_recover_exec; +extern PSI_memory_key key_memory_blob_mem_storage; + +extern PSI_memory_key key_memory_Sys_var_charptr_value; +extern PSI_memory_key key_memory_THD_db; +extern PSI_memory_key key_memory_user_var_entry; +extern PSI_memory_key key_memory_user_var_entry_value; +extern PSI_memory_key key_memory_Slave_job_group_group_relay_log_name; +extern PSI_memory_key key_memory_Relay_log_info_group_relay_log_name; +extern PSI_memory_key key_memory_binlog_cache_mngr; +extern PSI_memory_key key_memory_Row_data_memory_memory; +extern PSI_memory_key key_memory_errmsgs; +extern PSI_memory_key key_memory_Event_queue_element_for_exec_names; +extern PSI_memory_key key_memory_Event_scheduler_scheduler_param; +extern PSI_memory_key key_memory_Gis_read_stream_err_msg; +extern PSI_memory_key key_memory_Geometry_objects_data; +extern PSI_memory_key key_memory_host_cache_hostname; +extern PSI_memory_key key_memory_User_level_lock; +extern PSI_memory_key key_memory_Filesort_info_record_pointers; +extern PSI_memory_key key_memory_Sort_param_tmp_buffer; +extern PSI_memory_key key_memory_Filesort_info_merge; +extern PSI_memory_key key_memory_Filesort_buffer_sort_keys; +extern PSI_memory_key key_memory_handler_errmsgs; +extern PSI_memory_key key_memory_handlerton; +extern PSI_memory_key key_memory_XID; +extern PSI_memory_key key_memory_MYSQL_LOCK; +extern PSI_memory_key key_memory_MYSQL_LOG_name; +extern PSI_memory_key key_memory_TC_LOG_MMAP_pages; +extern PSI_memory_key key_memory_my_str_malloc; +extern PSI_memory_key key_memory_MYSQL_BIN_LOG_basename; +extern PSI_memory_key key_memory_MYSQL_BIN_LOG_index; +extern PSI_memory_key key_memory_MYSQL_RELAY_LOG_basename; +extern PSI_memory_key key_memory_MYSQL_RELAY_LOG_index; +extern PSI_memory_key key_memory_rpl_filter; +extern PSI_memory_key key_memory_Security_context; +extern PSI_memory_key key_memory_NET_buff; +extern PSI_memory_key key_memory_NET_compress_packet; +extern PSI_memory_key key_memory_my_bitmap_map; +extern PSI_memory_key key_memory_QUICK_RANGE_SELECT_mrr_buf_desc; +extern PSI_memory_key key_memory_TABLE_RULE_ENT; +extern PSI_memory_key key_memory_Mutex_cond_array_Mutex_cond; +extern PSI_memory_key key_memory_Owned_gtids_sidno_to_hash; +extern PSI_memory_key key_memory_Sid_map_Node; +extern PSI_memory_key key_memory_bison_stack; +extern PSI_memory_key key_memory_TABLE_sort_io_cache; +extern PSI_memory_key key_memory_DATE_TIME_FORMAT; +extern PSI_memory_key key_memory_DDL_LOG_MEMORY_ENTRY; +extern PSI_memory_key key_memory_ST_SCHEMA_TABLE; +extern PSI_memory_key key_memory_ignored_db; +extern PSI_memory_key key_memory_SLAVE_INFO; +extern PSI_memory_key key_memory_log_event_old; +extern PSI_memory_key key_memory_HASH_ROW_ENTRY; +extern PSI_memory_key key_memory_table_def_memory; +extern PSI_memory_key key_memory_MPVIO_EXT_auth_info; +extern PSI_memory_key key_memory_LOG_POS_COORD; +extern PSI_memory_key key_memory_XID_STATE; +extern PSI_memory_key key_memory_Rpl_info_file_buffer; +extern PSI_memory_key key_memory_Rpl_info_table; +extern PSI_memory_key key_memory_binlog_pos; +extern PSI_memory_key key_memory_db_worker_hash_entry; +extern PSI_memory_key key_memory_rpl_slave_command_buffer; +extern PSI_memory_key key_memory_binlog_ver_1_event; +extern PSI_memory_key key_memory_rpl_slave_check_temp_dir; +extern PSI_memory_key key_memory_TABLE; +extern PSI_memory_key key_memory_binlog_statement_buffer; +extern PSI_memory_key key_memory_user_conn; +extern PSI_memory_key key_memory_dboptions_hash; +extern PSI_memory_key key_memory_hash_index_key_buffer; +extern PSI_memory_key key_memory_THD_handler_tables_hash; +extern PSI_memory_key key_memory_JOIN_CACHE; +extern PSI_memory_key key_memory_READ_INFO; +extern PSI_memory_key key_memory_partition_syntax_buffer; +extern PSI_memory_key key_memory_global_system_variables; +extern PSI_memory_key key_memory_THD_variables; +extern PSI_memory_key key_memory_PROFILE; +extern PSI_memory_key key_memory_LOG_name; +extern PSI_memory_key key_memory_string_iterator; +extern PSI_memory_key key_memory_frm_extra_segment_buff; +extern PSI_memory_key key_memory_frm_form_pos; +extern PSI_memory_key key_memory_frm_string; +extern PSI_memory_key key_memory_Unique_sort_buffer; +extern PSI_memory_key key_memory_Unique_merge_buffer; +extern PSI_memory_key key_memory_shared_memory_name; +extern PSI_memory_key key_memory_opt_bin_logname; +extern PSI_memory_key key_memory_Query_cache; +extern PSI_memory_key key_memory_READ_RECORD_cache; +extern PSI_memory_key key_memory_Quick_ranges; +extern PSI_memory_key key_memory_File_query_log_name; +extern PSI_memory_key key_memory_Table_trigger_dispatcher; +extern PSI_memory_key key_memory_show_slave_status_io_gtid_set; +extern PSI_memory_key key_memory_write_set_extraction; +extern PSI_memory_key key_memory_thd_timer; +extern PSI_memory_key key_memory_THD_Session_tracker; +extern PSI_memory_key key_memory_THD_Session_sysvar_resource_manager; +extern PSI_memory_key key_memory_get_all_tables; +extern PSI_memory_key key_memory_fill_schema_schemata; +extern PSI_memory_key key_memory_native_functions; +extern PSI_memory_key key_memory_JSON; + +/* + 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_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; +extern PSI_stage_info stage_starting; + +#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 */ + +/* + 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_error_log, LOCK_delayed_insert, LOCK_short_uuid_generator, + LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone, + LOCK_active_mi, LOCK_manager, LOCK_user_conn, + LOCK_prepared_stmt_count, LOCK_error_messages; +extern MYSQL_PLUGIN_IMPORT mysql_mutex_t LOCK_global_system_variables; +extern mysql_rwlock_t LOCK_all_status_vars; +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_PLUGIN_IMPORT mysql_mutex_t LOCK_server_started; +extern MYSQL_PLUGIN_IMPORT mysql_cond_t COND_server_started; +extern mysql_rwlock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave; +extern mysql_rwlock_t LOCK_ssl_refresh; +extern mysql_prlock_t LOCK_system_variables_hash; +extern mysql_cond_t COND_start_thread; +extern mysql_cond_t COND_manager; + +extern my_bool opt_use_ssl; +extern char *opt_ssl_ca, *opt_ssl_capath, *opt_ssl_cert, *opt_ssl_cipher, + *opt_ssl_key, *opt_ssl_crl, *opt_ssl_crlpath; +extern ulonglong tls_version; + +#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_REMOVED_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_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_SKIP_RESOLVE, + 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_TLS_VERSION, + 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), + /// good for parsing + QT_PARSABLE= (1 << 8), + + /// 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), + + /// Do not print database name or table name in the identifiers (even if + /// this means the printout will be ambigous). It is assumed that the caller + /// passing this flag knows what they are doing. + QT_ITEM_IDENT_DISABLE_DB_TABLE_NAMES= (1 <<11), + + /// 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 Atomic_counter<query_id_t> global_query_id; + +/* increment query_id and return it. */ +inline __attribute__((warn_unused_result)) query_id_t next_query_id() +{ + return global_query_id++; +} + +inline query_id_t get_query_id() +{ + return global_query_id; +} + +/* 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->casedn(name, length, name, length); +} + +extern void set_server_version(char *buf, size_t size); + +#define current_thd _current_thd() +void set_current_thd(THD *thd); + +/* + @todo remove, make it static in ha_maria.cc + currently it's needed for sql_select.cc +*/ +extern handlerton *maria_hton; + +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 */ |