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Diffstat (limited to 'sql/mysqld.cc')
| -rw-r--r-- | sql/mysqld.cc | 9884 |
1 files changed, 9884 insertions, 0 deletions
diff --git a/sql/mysqld.cc b/sql/mysqld.cc new file mode 100644 index 00000000..95286923 --- /dev/null +++ b/sql/mysqld.cc @@ -0,0 +1,9884 @@ +/* Copyright (c) 2000, 2015, Oracle and/or its affiliates. + Copyright (c) 2008, 2022, MariaDB + + 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 Street, Fifth Floor, Boston, MA 02110-1335 USA */ + +#include "sql_plugin.h" // Includes mariadb.h +#include "sql_priv.h" +#include "unireg.h" +#include <signal.h> +#ifndef _WIN32 +#include <netdb.h> // getservbyname, servent +#endif +#include "sql_parse.h" // path_starts_from_data_home_dir +#include "sql_cache.h" // query_cache, query_cache_* +#include "sql_locale.h" // MY_LOCALES, my_locales, my_locale_by_name +#include "sql_show.h" // free_status_vars, add_status_vars, + // reset_status_vars +#include "strfunc.h" // find_set_from_flags +#include "parse_file.h" // File_parser_dummy_hook +#include "sql_db.h" // my_dboptions_cache_free + // my_dboptions_cache_init +#include "sql_table.h" // ddl_log_release, ddl_log_execute_recovery +#include "sql_connect.h" // free_max_user_conn, init_max_user_conn, + // handle_one_connection +#include "thread_cache.h" +#include "sql_time.h" // known_date_time_formats, + // get_date_time_format_str, + // date_time_format_make +#include "tztime.h" // my_tz_free, my_tz_init, my_tz_SYSTEM +#include "hostname.h" // hostname_cache_free, hostname_cache_init +#include "sql_acl.h" // acl_free, grant_free, acl_init, + // grant_init +#include "sql_base.h" +#include "sql_test.h" // mysql_print_status +#include "item_create.h" // item_create_cleanup, item_create_init +#include "sql_servers.h" // servers_free, servers_init +#include "init.h" // unireg_init +#include "derror.h" // init_errmessage +#include "des_key_file.h" // load_des_key_file +#include "sql_manager.h" // stop_handle_manager, start_handle_manager +#include "sql_expression_cache.h" // subquery_cache_miss, subquery_cache_hit +#include "sys_vars_shared.h" +#include "ddl_log.h" + +#include <m_ctype.h> +#include <my_dir.h> +#include <my_bit.h> +#include "my_cpu.h" +#include "slave.h" +#include "rpl_mi.h" +#include "sql_repl.h" +#include "rpl_filter.h" +#include "client_settings.h" +#include "repl_failsafe.h" +#include <sql_common.h> +#include <my_stacktrace.h> +#include "mysqld_suffix.h" +#include "mysys_err.h" +#include "events.h" +#include "sql_audit.h" +#include "probes_mysql.h" +#include "scheduler.h" +#include <waiting_threads.h> +#include "debug_sync.h" +#include "wsrep_mysqld.h" +#include "wsrep_var.h" +#ifdef WITH_WSREP +#include "wsrep_thd.h" +#include "wsrep_sst.h" +#include "wsrep_server_state.h" +#endif /* WITH_WSREP */ +#include "proxy_protocol.h" + +#include "sql_callback.h" +#include "threadpool.h" + +#ifdef HAVE_OPENSSL +#include <ssl_compat.h> +#endif + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE +#include "../storage/perfschema/pfs_server.h" +#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */ +#include <mysql/psi/mysql_idle.h> +#include <mysql/psi/mysql_socket.h> +#include <mysql/psi/mysql_statement.h> +#include "mysql_com_server.h" + +#include "keycaches.h" +#include "../storage/myisam/ha_myisam.h" +#include "set_var.h" + +#include "rpl_injector.h" +#include "semisync_master.h" +#include "semisync_slave.h" + +#include "transaction.h" + +#ifdef HAVE_SYS_PRCTL_H +#include <sys/prctl.h> +#endif + +#include <thr_alarm.h> +#include <ft_global.h> +#include <errmsg.h> +#include "sp_rcontext.h" +#include "sp_cache.h" +#include "sql_reload.h" // reload_acl_and_cache +#include "sp_head.h" // init_sp_psi_keys + +#include <mysqld_default_groups.h> + +#ifdef HAVE_POLL_H +#include <poll.h> +#endif + +#ifdef _WIN32 +#include <handle_connections_win.h> +#include <sddl.h> +#include <winservice.h> /* SERVICE_STOPPED, SERVICE_RUNNING etc */ +#endif + +#include <my_service_manager.h> + +#include <source_revision.h> + +#define mysqld_charset &my_charset_latin1 + +extern "C" { // Because of SCO 3.2V4.2 +#include <sys/stat.h> +#ifndef __GNU_LIBRARY__ +#define __GNU_LIBRARY__ // Skip warnings in getopt.h +#endif +#include <my_getopt.h> +#ifdef HAVE_SYSENT_H +#include <sysent.h> +#endif +#ifdef HAVE_PWD_H +#include <pwd.h> // For struct passwd +#endif +#include <my_net.h> + +#if !defined(_WIN32) +#include <sys/resource.h> +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#endif +#ifdef HAVE_SELECT_H +#include <select.h> +#endif +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +#include <sys/utsname.h> +#endif /* _WIN32 */ + +#include <my_libwrap.h> + +#ifdef _WIN32 +#include <crtdbg.h> +#endif + +#ifdef _AIX41 +int initgroups(const char *,unsigned int); +#endif + +#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H) && !defined(HAVE_FEDISABLEEXCEPT) +#include <ieeefp.h> +#ifdef HAVE_FP_EXCEPT // Fix type conflict +typedef fp_except fp_except_t; +#endif +#endif /* __FreeBSD__ && HAVE_IEEEFP_H && !HAVE_FEDISABLEEXCEPT */ +#ifdef HAVE_SYS_FPU_H +/* for IRIX to use set_fpc_csr() */ +#include <sys/fpu.h> +#endif +#ifdef HAVE_FPU_CONTROL_H +#include <fpu_control.h> +#endif +#if defined(__i386__) && !defined(HAVE_FPU_CONTROL_H) +# define fpu_control_t unsigned int +# define _FPU_EXTENDED 0x300 +# define _FPU_DOUBLE 0x200 +# if defined(__GNUC__) || (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x590) +# define _FPU_GETCW(cw) asm volatile ("fnstcw %0" : "=m" (*&cw)) +# define _FPU_SETCW(cw) asm volatile ("fldcw %0" : : "m" (*&cw)) +# else +# define _FPU_GETCW(cw) (cw= 0) +# define _FPU_SETCW(cw) +# endif +#endif + +#ifndef HAVE_FCNTL +#define fcntl(X,Y,Z) 0 +#endif + +inline void setup_fpu() +{ +#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H) && !defined(HAVE_FEDISABLEEXCEPT) + /* We can't handle floating point exceptions with threads, so disable + this on freebsd + Don't fall for overflow, underflow,divide-by-zero or loss of precision. + fpsetmask() is deprecated in favor of fedisableexcept() in C99. + */ +#if defined(FP_X_DNML) + fpsetmask(~(FP_X_INV | FP_X_DNML | FP_X_OFL | FP_X_UFL | FP_X_DZ | + FP_X_IMP)); +#else + fpsetmask(~(FP_X_INV | FP_X_OFL | FP_X_UFL | FP_X_DZ | + FP_X_IMP)); +#endif /* FP_X_DNML */ +#endif /* __FreeBSD__ && HAVE_IEEEFP_H && !HAVE_FEDISABLEEXCEPT */ + +#ifdef HAVE_FEDISABLEEXCEPT + fedisableexcept(FE_ALL_EXCEPT); +#endif + +#ifdef HAVE_FESETROUND + /* Set FPU rounding mode to "round-to-nearest" */ + fesetround(FE_TONEAREST); +#endif /* HAVE_FESETROUND */ + + /* + x86 (32-bit) requires FPU precision to be explicitly set to 64 bit + (double precision) for portable results of floating point operations. + However, there is no need to do so if compiler is using SSE2 for floating + point, double values will be stored and processed in 64 bits anyway. + */ +#if defined(__i386__) && !defined(__SSE2_MATH__) +#if defined(_WIN32) +#if !defined(_WIN64) + _control87(_PC_53, MCW_PC); +#endif /* !_WIN64 */ +#else /* !_WIN32 */ + fpu_control_t cw; + _FPU_GETCW(cw); + cw= (cw & ~_FPU_EXTENDED) | _FPU_DOUBLE; + _FPU_SETCW(cw); +#endif /* _WIN32 && */ +#endif /* __i386__ */ + +#if defined(__sgi) && defined(HAVE_SYS_FPU_H) + /* Enable denormalized DOUBLE values support for IRIX */ + union fpc_csr n; + n.fc_word = get_fpc_csr(); + n.fc_struct.flush = 0; + set_fpc_csr(n.fc_word); +#endif +} + +} /* cplusplus */ + +#define MYSQL_KILL_SIGNAL SIGTERM + +#include <my_pthread.h> // For thr_setconcurency() + +#ifdef SOLARIS +extern "C" int gethostname(char *name, int namelen); +#endif + +extern "C" sig_handler handle_fatal_signal(int sig); + +#if defined(__linux__) +#define ENABLE_TEMP_POOL 1 +#else +#define ENABLE_TEMP_POOL 0 +#endif + +int init_io_cache_encryption(); + +extern "C" +{ + static void my_malloc_size_cb_func(long long size, + my_bool is_thread_specific); +} + +/* Constants */ + +#include <welcome_copyright_notice.h> // ORACLE_WELCOME_COPYRIGHT_NOTICE + +const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"}; + +static const char *tc_heuristic_recover_names[]= +{ + "OFF", "COMMIT", "ROLLBACK", NullS +}; +static TYPELIB tc_heuristic_recover_typelib= +{ + array_elements(tc_heuristic_recover_names)-1,"", + tc_heuristic_recover_names, NULL +}; + +const char *first_keyword= "first"; +const char *my_localhost= "localhost", *delayed_user= "DELAYED"; + +bool opt_large_files= sizeof(my_off_t) > 4; +static my_bool opt_autocommit; ///< for --autocommit command-line option +/* + Used with --help for detailed option +*/ +static my_bool opt_verbose= 0; + +/* Timer info to be used by the SQL layer */ +MY_TIMER_INFO sys_timer_info; + +/* static variables */ + +#ifdef HAVE_PSI_INTERFACE +#ifdef HAVE_OPENSSL10 +static PSI_rwlock_key key_rwlock_openssl; +#endif +#endif /* HAVE_PSI_INTERFACE */ + +/** + Statement instrumentation key for replication. +*/ +#ifdef HAVE_PSI_STATEMENT_INTERFACE +PSI_statement_info stmt_info_rpl; +#endif + +/* the default log output is log tables */ +static bool lower_case_table_names_used= 0; +static bool volatile select_thread_in_use, signal_thread_in_use; +static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0; +static my_bool opt_short_log_format= 0, opt_silent_startup= 0; + +ulong max_used_connections; +static const char *mysqld_user, *mysqld_chroot; +static char *default_character_set_name; +static char *character_set_filesystem_name; +static char *lc_messages; +static char *lc_time_names_name; +char *my_bind_addr_str; +static char *default_collation_name; +char *default_storage_engine, *default_tmp_storage_engine; +char *enforced_storage_engine=NULL; +char *gtid_pos_auto_engines; +plugin_ref *opt_gtid_pos_auto_plugins; +static char compiled_default_collation_name[]= MYSQL_DEFAULT_COLLATION_NAME; +Thread_cache thread_cache; +static bool binlog_format_used= false; +LEX_STRING opt_init_connect, opt_init_slave; +static DYNAMIC_ARRAY all_options; +static longlong start_memory_used; + +/* Global variables */ + +bool opt_bin_log, opt_bin_log_used=0, opt_ignore_builtin_innodb= 0; +bool opt_bin_log_compress; +uint opt_bin_log_compress_min_len; +my_bool opt_log, debug_assert_if_crashed_table= 0, opt_help= 0; +my_bool debug_assert_on_not_freed_memory= 0; +my_bool disable_log_notes, opt_support_flashback= 0; +static my_bool opt_abort; +ulonglong log_output_options; +my_bool opt_userstat_running; +bool opt_error_log= IF_WIN(1,0); +bool opt_disable_networking=0, opt_skip_show_db=0; +bool opt_skip_name_resolve=0; +my_bool opt_character_set_client_handshake= 1; +bool opt_endinfo, using_udf_functions; +my_bool locked_in_memory; +bool opt_using_transactions; +bool volatile abort_loop; +uint volatile global_disable_checkpoint; +#if defined(_WIN32) +ulong slow_start_timeout; +#endif +static MEM_ROOT startup_root; +MEM_ROOT read_only_root; + +/** + @brief 'grant_option' is used to indicate if privileges needs + to be checked, in which case the lock, LOCK_grant, is used + to protect access to the grant table. + @note This flag is dropped in 5.1 + @see grant_init() + */ +bool volatile grant_option; + +my_bool opt_skip_slave_start = 0; ///< If set, slave is not autostarted +my_bool opt_reckless_slave = 0; +my_bool opt_enable_named_pipe= 0; +my_bool opt_local_infile, opt_slave_compressed_protocol; +my_bool opt_safe_user_create = 0; +my_bool opt_show_slave_auth_info; +my_bool opt_log_slave_updates= 0; +my_bool opt_replicate_annotate_row_events= 0; +my_bool opt_mysql56_temporal_format=0, strict_password_validation= 1; +char *opt_slave_skip_errors; +char *opt_slave_transaction_retry_errors; + +/* + Legacy global handlerton. These will be removed (please do not add more). +*/ +handlerton *heap_hton; +handlerton *myisam_hton; +handlerton *partition_hton; + +my_bool read_only= 0, opt_readonly= 0; +my_bool use_temp_pool, relay_log_purge; +my_bool relay_log_recovery; +my_bool opt_sync_frm, opt_allow_suspicious_udfs; +my_bool opt_secure_auth= 0; +my_bool opt_require_secure_transport= 0; +char* opt_secure_file_priv; +my_bool lower_case_file_system= 0; +my_bool opt_large_pages= 0; +my_bool opt_super_large_pages= 0; +my_bool opt_myisam_use_mmap= 0; +uint opt_large_page_size= 0; +#if defined(ENABLED_DEBUG_SYNC) +MYSQL_PLUGIN_IMPORT uint opt_debug_sync_timeout= 0; +#endif /* defined(ENABLED_DEBUG_SYNC) */ +my_bool opt_old_style_user_limits= 0, trust_function_creators= 0; +ulong opt_replicate_events_marked_for_skip; + +/* + True if there is at least one per-hour limit for some user, so we should + check them before each query (and possibly reset counters when hour is + changed). False otherwise. +*/ +volatile bool mqh_used = 0; +my_bool opt_noacl; +my_bool sp_automatic_privileges= 1; + +ulong opt_binlog_rows_event_max_size; +ulong binlog_row_metadata; +my_bool opt_master_verify_checksum= 0; +my_bool opt_slave_sql_verify_checksum= 1; +const char *binlog_format_names[]= {"MIXED", "STATEMENT", "ROW", NullS}; +volatile sig_atomic_t calling_initgroups= 0; /**< Used in SIGSEGV handler. */ +uint mysqld_port, select_errors, dropping_tables, ha_open_options; +uint mysqld_extra_port; +uint mysqld_port_timeout; +ulong delay_key_write_options; +uint protocol_version; +uint lower_case_table_names; +ulong tc_heuristic_recover= 0; +Atomic_counter<uint32_t> THD_count::count, CONNECT::count; +bool shutdown_wait_for_slaves; +Atomic_counter<uint32_t> slave_open_temp_tables; +ulong thread_created; +ulong back_log, connect_timeout, server_id; +ulong what_to_log; +ulong slow_launch_time; +ulong open_files_limit, max_binlog_size; +ulong slave_trans_retries; +ulong slave_trans_retry_interval; +uint slave_net_timeout; +ulong slave_exec_mode_options; +ulong slave_run_triggers_for_rbr= 0; +ulong slave_ddl_exec_mode_options= SLAVE_EXEC_MODE_IDEMPOTENT; +ulonglong slave_type_conversions_options; +ulong thread_cache_size=0; +ulonglong binlog_cache_size=0; +ulonglong binlog_file_cache_size=0; +ulonglong max_binlog_cache_size=0; +ulong slave_max_allowed_packet= 0; +double slave_max_statement_time_double; +ulonglong slave_max_statement_time; +ulonglong binlog_stmt_cache_size=0; +ulonglong max_binlog_stmt_cache_size=0; +ulonglong test_flags; +ulonglong query_cache_size=0; +ulong query_cache_limit=0; +ulong executed_events=0; +Atomic_counter<query_id_t> global_query_id; +ulong aborted_threads, aborted_connects, aborted_connects_preauth; +ulong delayed_insert_timeout, delayed_insert_limit, delayed_queue_size; +ulong delayed_insert_threads, delayed_insert_writes, delayed_rows_in_use; +ulong delayed_insert_errors,flush_time; +ulong malloc_calls; +ulong specialflag=0; +ulong binlog_cache_use= 0, binlog_cache_disk_use= 0; +ulong binlog_stmt_cache_use= 0, binlog_stmt_cache_disk_use= 0; +ulong max_connections, max_connect_errors; +uint max_password_errors; +ulong extra_max_connections; +uint max_digest_length= 0; +ulong slave_retried_transactions; +ulong transactions_multi_engine; +ulong rpl_transactions_multi_engine; +ulong transactions_gtid_foreign_engine; +ulonglong slave_skipped_errors; +ulong feature_files_opened_with_delayed_keys= 0, feature_check_constraint= 0; +ulonglong denied_connections; +my_decimal decimal_zero; +long opt_secure_timestamp; +uint default_password_lifetime; +my_bool disconnect_on_expired_password; + +bool max_user_connections_checking=0; +/** + Limit of the total number of prepared statements in the server. + Is necessary to protect the server against out-of-memory attacks. +*/ +uint max_prepared_stmt_count; +/** + Current total number of prepared statements in the server. This number + is exact, and therefore may not be equal to the difference between + `com_stmt_prepare' and `com_stmt_close' (global status variables), as + the latter ones account for all registered attempts to prepare + a statement (including unsuccessful ones). Prepared statements are + currently connection-local: if the same SQL query text is prepared in + two different connections, this counts as two distinct prepared + statements. +*/ +uint prepared_stmt_count=0; +my_thread_id global_thread_id= 0; +ulong current_pid; +ulong slow_launch_threads = 0; +uint sync_binlog_period= 0, sync_relaylog_period= 0, + sync_relayloginfo_period= 0, sync_masterinfo_period= 0; +double expire_logs_days = 0; +ulong binlog_expire_logs_seconds = 0; + +/** + Soft upper limit for number of sp_head objects that can be stored + in the sp_cache for one connection. +*/ +ulong stored_program_cache_size= 0; + +ulong opt_slave_parallel_threads= 0; +ulong opt_slave_domain_parallel_threads= 0; +ulong opt_slave_parallel_mode; +ulong opt_binlog_commit_wait_count= 0; +ulong opt_binlog_commit_wait_usec= 0; +ulong opt_slave_parallel_max_queued= 131072; +my_bool opt_gtid_ignore_duplicates= FALSE; +uint opt_gtid_cleanup_batch_size= 64; + +const double log_10[] = { + 1e000, 1e001, 1e002, 1e003, 1e004, 1e005, 1e006, 1e007, 1e008, 1e009, + 1e010, 1e011, 1e012, 1e013, 1e014, 1e015, 1e016, 1e017, 1e018, 1e019, + 1e020, 1e021, 1e022, 1e023, 1e024, 1e025, 1e026, 1e027, 1e028, 1e029, + 1e030, 1e031, 1e032, 1e033, 1e034, 1e035, 1e036, 1e037, 1e038, 1e039, + 1e040, 1e041, 1e042, 1e043, 1e044, 1e045, 1e046, 1e047, 1e048, 1e049, + 1e050, 1e051, 1e052, 1e053, 1e054, 1e055, 1e056, 1e057, 1e058, 1e059, + 1e060, 1e061, 1e062, 1e063, 1e064, 1e065, 1e066, 1e067, 1e068, 1e069, + 1e070, 1e071, 1e072, 1e073, 1e074, 1e075, 1e076, 1e077, 1e078, 1e079, + 1e080, 1e081, 1e082, 1e083, 1e084, 1e085, 1e086, 1e087, 1e088, 1e089, + 1e090, 1e091, 1e092, 1e093, 1e094, 1e095, 1e096, 1e097, 1e098, 1e099, + 1e100, 1e101, 1e102, 1e103, 1e104, 1e105, 1e106, 1e107, 1e108, 1e109, + 1e110, 1e111, 1e112, 1e113, 1e114, 1e115, 1e116, 1e117, 1e118, 1e119, + 1e120, 1e121, 1e122, 1e123, 1e124, 1e125, 1e126, 1e127, 1e128, 1e129, + 1e130, 1e131, 1e132, 1e133, 1e134, 1e135, 1e136, 1e137, 1e138, 1e139, + 1e140, 1e141, 1e142, 1e143, 1e144, 1e145, 1e146, 1e147, 1e148, 1e149, + 1e150, 1e151, 1e152, 1e153, 1e154, 1e155, 1e156, 1e157, 1e158, 1e159, + 1e160, 1e161, 1e162, 1e163, 1e164, 1e165, 1e166, 1e167, 1e168, 1e169, + 1e170, 1e171, 1e172, 1e173, 1e174, 1e175, 1e176, 1e177, 1e178, 1e179, + 1e180, 1e181, 1e182, 1e183, 1e184, 1e185, 1e186, 1e187, 1e188, 1e189, + 1e190, 1e191, 1e192, 1e193, 1e194, 1e195, 1e196, 1e197, 1e198, 1e199, + 1e200, 1e201, 1e202, 1e203, 1e204, 1e205, 1e206, 1e207, 1e208, 1e209, + 1e210, 1e211, 1e212, 1e213, 1e214, 1e215, 1e216, 1e217, 1e218, 1e219, + 1e220, 1e221, 1e222, 1e223, 1e224, 1e225, 1e226, 1e227, 1e228, 1e229, + 1e230, 1e231, 1e232, 1e233, 1e234, 1e235, 1e236, 1e237, 1e238, 1e239, + 1e240, 1e241, 1e242, 1e243, 1e244, 1e245, 1e246, 1e247, 1e248, 1e249, + 1e250, 1e251, 1e252, 1e253, 1e254, 1e255, 1e256, 1e257, 1e258, 1e259, + 1e260, 1e261, 1e262, 1e263, 1e264, 1e265, 1e266, 1e267, 1e268, 1e269, + 1e270, 1e271, 1e272, 1e273, 1e274, 1e275, 1e276, 1e277, 1e278, 1e279, + 1e280, 1e281, 1e282, 1e283, 1e284, 1e285, 1e286, 1e287, 1e288, 1e289, + 1e290, 1e291, 1e292, 1e293, 1e294, 1e295, 1e296, 1e297, 1e298, 1e299, + 1e300, 1e301, 1e302, 1e303, 1e304, 1e305, 1e306, 1e307, 1e308 +}; + +time_t server_start_time, flush_status_time; + +char mysql_home[FN_REFLEN], pidfile_name[FN_REFLEN], system_time_zone[30]; +char *default_tz_name; +char log_error_file[FN_REFLEN], glob_hostname[FN_REFLEN], *opt_log_basename; +char mysql_real_data_home[FN_REFLEN], + lc_messages_dir[FN_REFLEN], reg_ext[FN_EXTLEN], + mysql_charsets_dir[FN_REFLEN], + *opt_init_file, *opt_tc_log_file, *opt_ddl_recovery_file; +char *lc_messages_dir_ptr= lc_messages_dir, *log_error_file_ptr; +char mysql_unpacked_real_data_home[FN_REFLEN]; +size_t mysql_unpacked_real_data_home_len; +uint mysql_real_data_home_len, mysql_data_home_len= 1; +uint reg_ext_length; +const key_map key_map_empty(0); +key_map key_map_full(0); // Will be initialized later + +DATE_TIME_FORMAT global_date_format, global_datetime_format, global_time_format; +Time_zone *default_tz; + +const char *mysql_real_data_home_ptr= mysql_real_data_home; +extern "C" { +char server_version[SERVER_VERSION_LENGTH]; +} +char *server_version_ptr; +bool using_custom_server_version= false; +char *mysqld_unix_port, *opt_mysql_tmpdir; +ulong thread_handling; + +my_bool encrypt_binlog; +my_bool encrypt_tmp_disk_tables, encrypt_tmp_files; + +/** name of reference on left expression in rewritten IN subquery */ +const LEX_CSTRING in_left_expr_name= {STRING_WITH_LEN("<left expr>") }; +/** name of additional condition */ +const LEX_CSTRING in_having_cond= {STRING_WITH_LEN("<IN HAVING>") }; +const LEX_CSTRING in_additional_cond= {STRING_WITH_LEN("<IN COND>") }; + +/** Number of connection errors when selecting on the listening port */ +ulong connection_errors_select= 0; +/** Number of connection errors when accepting sockets in the listening port. */ +ulong connection_errors_accept= 0; +/** Number of connection errors from TCP wrappers. */ +ulong connection_errors_tcpwrap= 0; +/** Number of connection errors from internal server errors. */ +ulong connection_errors_internal= 0; +/** Number of connection errors from the server max_connection limit. */ +ulong connection_errors_max_connection= 0; +/** Number of errors when reading the peer address. */ +ulong connection_errors_peer_addr= 0; + +/* classes for comparation parsing/processing */ +Eq_creator eq_creator; +Ne_creator ne_creator; +Gt_creator gt_creator; +Lt_creator lt_creator; +Ge_creator ge_creator; +Le_creator le_creator; + +THD_list server_threads; +Rpl_filter* cur_rpl_filter; +Rpl_filter* global_rpl_filter; +Rpl_filter* binlog_filter; + +struct system_variables global_system_variables; +/** + Following is just for options parsing, used with a difference against + global_system_variables. + + TODO: something should be done to get rid of following variables +*/ +const char *current_dbug_option=""; + +struct system_variables max_system_variables; +struct system_status_var global_status_var; + +MY_TMPDIR mysql_tmpdir_list; +static MY_BITMAP temp_pool; +static mysql_mutex_t LOCK_temp_pool; + +void temp_pool_clear_bit(uint bit) +{ + mysql_mutex_lock(&LOCK_temp_pool); + bitmap_clear_bit(&temp_pool, bit); + mysql_mutex_unlock(&LOCK_temp_pool); +} + +uint temp_pool_set_next() +{ + mysql_mutex_lock(&LOCK_temp_pool); + uint res= bitmap_set_next(&temp_pool); + mysql_mutex_unlock(&LOCK_temp_pool); + return res; +} + +CHARSET_INFO *system_charset_info, *files_charset_info ; +CHARSET_INFO *national_charset_info, *table_alias_charset; +CHARSET_INFO *character_set_filesystem; +CHARSET_INFO *error_message_charset_info; + +MY_LOCALE *my_default_lc_messages; +MY_LOCALE *my_default_lc_time_names; + +SHOW_COMP_OPTION have_ssl, have_symlink, have_dlopen, have_query_cache; +SHOW_COMP_OPTION have_geometry, have_rtree_keys; +SHOW_COMP_OPTION have_crypt, have_compress; +SHOW_COMP_OPTION have_profiling; +SHOW_COMP_OPTION have_openssl; + +#ifndef EMBEDDED_LIBRARY +static std::atomic<char*> shutdown_user; +#endif //EMBEDDED_LIBRARY +std::atomic<my_thread_id> shutdown_thread_id; + +/* Thread specific variables */ + +static thread_local THD *THR_THD; + +/** + Get current THD object from thread local data + + @retval The THD object for the thread, NULL if not connection thread +*/ + +MYSQL_THD _current_thd() { return THR_THD; } +void set_current_thd(THD *thd) { THR_THD= thd; } + +/* + LOCK_start_thread is used to syncronize thread start and stop with + other threads. + + It also protects these variables: + select_thread_in_use + slave_init_thread_running + check_temp_dir() call +*/ +mysql_mutex_t LOCK_start_thread; + +mysql_mutex_t + LOCK_status, LOCK_error_log, LOCK_short_uuid_generator, + LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create, + LOCK_crypt, + LOCK_global_system_variables, + LOCK_user_conn, + LOCK_error_messages; +mysql_mutex_t LOCK_stats, LOCK_global_user_client_stats, + LOCK_global_table_stats, LOCK_global_index_stats; + +/* This protects against changes in master_info_index */ +mysql_mutex_t LOCK_active_mi; + +/* This protects connection id.*/ +mysql_mutex_t LOCK_thread_id; + +/** + The below lock protects access to two global server variables: + max_prepared_stmt_count and prepared_stmt_count. These variables + set the limit and hold the current total number of prepared statements + in the server, respectively. As PREPARE/DEALLOCATE rate in a loaded + server may be fairly high, we need a dedicated lock. +*/ +mysql_mutex_t LOCK_prepared_stmt_count; +#ifdef HAVE_OPENSSL +mysql_mutex_t LOCK_des_key_file; +#endif +mysql_mutex_t LOCK_backup_log; +mysql_rwlock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave; +mysql_rwlock_t LOCK_ssl_refresh; +mysql_rwlock_t LOCK_all_status_vars; +mysql_prlock_t LOCK_system_variables_hash; +mysql_cond_t COND_start_thread; +pthread_t signal_thread; +pthread_attr_t connection_attrib; +mysql_mutex_t LOCK_server_started; +mysql_cond_t COND_server_started; + +int mysqld_server_started=0, mysqld_server_initialized= 0; +File_parser_dummy_hook file_parser_dummy_hook; + +/* replication parameters, if master_host is not NULL, we are a slave */ +uint report_port= 0; +ulong master_retry_count=0; +char *master_info_file; +char *relay_log_info_file, *report_user, *report_password, *report_host; +char *opt_relay_logname = 0, *opt_relaylog_index_name=0; +char *opt_logname, *opt_slow_logname, *opt_bin_logname; +char *opt_binlog_index_name=0; + + + +/* Static variables */ + +my_bool opt_stack_trace; +my_bool opt_expect_abort= 0, opt_bootstrap= 0; +static my_bool opt_myisam_log; +static int cleanup_done; +static ulong opt_specialflag; +char *mysql_home_ptr, *pidfile_name_ptr; +/** Initial command line arguments (count), after load_defaults().*/ +static int defaults_argc; +/** + Initial command line arguments (arguments), after load_defaults(). + This memory is allocated by @c load_defaults() and should be freed + using @c free_defaults(). + Do not modify defaults_argc / defaults_argv, + use remaining_argc / remaining_argv instead to parse the command + line arguments in multiple steps. +*/ +static char **defaults_argv; +/** Remaining command line arguments (count), filtered by handle_options().*/ +static int remaining_argc; +/** Remaining command line arguments (arguments), filtered by handle_options().*/ +static char **remaining_argv; + +int orig_argc; +char **orig_argv; + +static struct my_option pfs_early_options[]= +{ +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + {"performance_schema_instrument", OPT_PFS_INSTRUMENT, + "Default startup value for a performance schema instrument.", + &pfs_param.m_pfs_instrument, &pfs_param.m_pfs_instrument, 0, GET_STR, + OPT_ARG, 0, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_stages_current", 0, + "Default startup value for the events_stages_current consumer.", + &pfs_param.m_consumer_events_stages_current_enabled, + &pfs_param.m_consumer_events_stages_current_enabled, 0, GET_BOOL, + OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_stages_history", 0, + "Default startup value for the events_stages_history consumer.", + &pfs_param.m_consumer_events_stages_history_enabled, + &pfs_param.m_consumer_events_stages_history_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_stages_history_long", 0, + "Default startup value for the events_stages_history_long consumer.", + &pfs_param.m_consumer_events_stages_history_long_enabled, + &pfs_param.m_consumer_events_stages_history_long_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_statements_current", 0, + "Default startup value for the events_statements_current consumer.", + &pfs_param.m_consumer_events_statements_current_enabled, + &pfs_param.m_consumer_events_statements_current_enabled, 0, GET_BOOL, + OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_statements_history", 0, + "Default startup value for the events_statements_history consumer.", + &pfs_param.m_consumer_events_statements_history_enabled, + &pfs_param.m_consumer_events_statements_history_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_statements_history_long", 0, + "Default startup value for the events_statements_history_long consumer.", + &pfs_param.m_consumer_events_statements_history_long_enabled, + &pfs_param.m_consumer_events_statements_history_long_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_transactions_current", 0, + "Default startup value for the events_transactions_current consumer.", + &pfs_param.m_consumer_events_transactions_current_enabled, + &pfs_param.m_consumer_events_transactions_current_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_transactions_history", 0, + "Default startup value for the events_transactions_history consumer.", + &pfs_param.m_consumer_events_transactions_history_enabled, + &pfs_param.m_consumer_events_transactions_history_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_transactions_history_long", 0, + "Default startup value for the events_transactions_history_long consumer.", + &pfs_param.m_consumer_events_transactions_history_long_enabled, + &pfs_param.m_consumer_events_transactions_history_long_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_waits_current", 0, + "Default startup value for the events_waits_current consumer.", + &pfs_param.m_consumer_events_waits_current_enabled, + &pfs_param.m_consumer_events_waits_current_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_waits_history", 0, + "Default startup value for the events_waits_history consumer.", + &pfs_param.m_consumer_events_waits_history_enabled, + &pfs_param.m_consumer_events_waits_history_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_events_waits_history_long", 0, + "Default startup value for the events_waits_history_long consumer.", + &pfs_param.m_consumer_events_waits_history_long_enabled, + &pfs_param.m_consumer_events_waits_history_long_enabled, 0, + GET_BOOL, OPT_ARG, FALSE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_global_instrumentation", 0, + "Default startup value for the global_instrumentation consumer.", + &pfs_param.m_consumer_global_instrumentation_enabled, + &pfs_param.m_consumer_global_instrumentation_enabled, 0, + GET_BOOL, OPT_ARG, TRUE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_thread_instrumentation", 0, + "Default startup value for the thread_instrumentation consumer.", + &pfs_param.m_consumer_thread_instrumentation_enabled, + &pfs_param.m_consumer_thread_instrumentation_enabled, 0, + GET_BOOL, OPT_ARG, TRUE, 0, 0, 0, 0, 0}, + {"performance_schema_consumer_statements_digest", 0, + "Default startup value for the statements_digest consumer.", + &pfs_param.m_consumer_statement_digest_enabled, + &pfs_param.m_consumer_statement_digest_enabled, 0, + GET_BOOL, OPT_ARG, TRUE, 0, 0, 0, 0, 0}, +#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */ + {"getopt-prefix-matching", 0, + "Recognize command-line options by their unambiguos prefixes.", + &my_getopt_prefix_matching, &my_getopt_prefix_matching, 0, GET_BOOL, + NO_ARG, 1, 0, 1, 0, 0, 0} +}; + +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_log_ddl, + 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; +PSI_file_key key_file_query_log, key_file_slow_log; +PSI_file_key key_file_relaylog, key_file_relaylog_index, + key_file_relaylog_cache, key_file_relaylog_index_cache; +PSI_file_key key_file_binlog_state; + +#ifdef HAVE_PSI_INTERFACE +#ifdef HAVE_MMAP +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 +PSI_mutex_key key_LOCK_des_key_file; +#endif /* HAVE_OPENSSL */ + +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_manager, key_LOCK_backup_log, + key_LOCK_prepared_stmt_count, + key_LOCK_rpl_status, key_LOCK_server_started, + key_LOCK_status, key_LOCK_temp_pool, + key_LOCK_system_variables_hash, key_LOCK_thd_data, key_LOCK_thd_kill, + key_LOCK_user_conn, key_LOCK_uuid_short_generator, 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_master_info_start_alter_lock, + key_master_info_start_alter_list_lock, + key_mutex_slave_reporting_capability_err_lock, key_relay_log_info_data_lock, + key_rpl_group_info_sleep_lock, + key_relay_log_info_log_space_lock, key_relay_log_info_run_lock, + key_structure_guard_mutex, key_TABLE_SHARE_LOCK_ha_data, + key_LOCK_error_messages, + key_LOCK_start_thread, + key_PARTITION_LOCK_auto_inc; +PSI_mutex_key key_RELAYLOG_LOCK_index; +PSI_mutex_key key_LOCK_relaylog_end_pos; +PSI_mutex_key key_LOCK_thread_id; +PSI_mutex_key key_LOCK_slave_state, key_LOCK_binlog_state, + key_LOCK_rpl_thread, key_LOCK_rpl_thread_pool, key_LOCK_parallel_entry; +PSI_mutex_key key_LOCK_rpl_semi_sync_master_enabled; +PSI_mutex_key key_LOCK_binlog; + +PSI_mutex_key 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; +PSI_mutex_key key_LOCK_gtid_waiting; + +PSI_mutex_key key_LOCK_after_binlog_sync; +PSI_mutex_key key_LOCK_prepare_ordered, key_LOCK_commit_ordered; +PSI_mutex_key key_TABLE_SHARE_LOCK_share; +PSI_mutex_key key_TABLE_SHARE_LOCK_statistics; +PSI_mutex_key key_LOCK_ack_receiver; + +PSI_mutex_key key_TABLE_SHARE_LOCK_rotation; +PSI_cond_key key_TABLE_SHARE_COND_rotation; + +static PSI_mutex_info all_server_mutexes[]= +{ +#ifdef HAVE_MMAP + { &key_PAGE_lock, "PAGE::lock", 0}, + { &key_LOCK_sync, "TC_LOG_MMAP::LOCK_sync", 0}, + { &key_LOCK_active, "TC_LOG_MMAP::LOCK_active", 0}, + { &key_LOCK_pool, "TC_LOG_MMAP::LOCK_pool", 0}, + { &key_LOCK_pool, "TC_LOG_MMAP::LOCK_pending_checkpoint", 0}, +#endif /* HAVE_MMAP */ + +#ifdef HAVE_OPENSSL + { &key_LOCK_des_key_file, "LOCK_des_key_file", PSI_FLAG_GLOBAL}, +#endif /* HAVE_OPENSSL */ + + { &key_BINLOG_LOCK_index, "MYSQL_BIN_LOG::LOCK_index", 0}, + { &key_BINLOG_LOCK_xid_list, "MYSQL_BIN_LOG::LOCK_xid_list", 0}, + { &key_BINLOG_LOCK_binlog_background_thread, "MYSQL_BIN_LOG::LOCK_binlog_background_thread", 0}, + { &key_LOCK_binlog_end_pos, "MYSQL_BIN_LOG::LOCK_binlog_end_pos", 0 }, + { &key_RELAYLOG_LOCK_index, "MYSQL_RELAY_LOG::LOCK_index", 0}, + { &key_LOCK_relaylog_end_pos, "MYSQL_RELAY_LOG::LOCK_binlog_end_pos", 0}, + { &key_delayed_insert_mutex, "Delayed_insert::mutex", 0}, + { &key_hash_filo_lock, "hash_filo::lock", 0}, + { &key_LOCK_active_mi, "LOCK_active_mi", PSI_FLAG_GLOBAL}, + { &key_LOCK_backup_log, "LOCK_backup_log", PSI_FLAG_GLOBAL}, + { &key_LOCK_temp_pool, "LOCK_temp_pool", PSI_FLAG_GLOBAL}, + { &key_LOCK_thread_id, "LOCK_thread_id", PSI_FLAG_GLOBAL}, + { &key_LOCK_crypt, "LOCK_crypt", PSI_FLAG_GLOBAL}, + { &key_LOCK_delayed_create, "LOCK_delayed_create", PSI_FLAG_GLOBAL}, + { &key_LOCK_delayed_insert, "LOCK_delayed_insert", PSI_FLAG_GLOBAL}, + { &key_LOCK_delayed_status, "LOCK_delayed_status", PSI_FLAG_GLOBAL}, + { &key_LOCK_error_log, "LOCK_error_log", PSI_FLAG_GLOBAL}, + { &key_LOCK_gdl, "LOCK_gdl", PSI_FLAG_GLOBAL}, + { &key_LOCK_global_system_variables, "LOCK_global_system_variables", PSI_FLAG_GLOBAL}, + { &key_LOCK_manager, "LOCK_manager", PSI_FLAG_GLOBAL}, + { &key_LOCK_prepared_stmt_count, "LOCK_prepared_stmt_count", PSI_FLAG_GLOBAL}, + { &key_LOCK_rpl_status, "LOCK_rpl_status", PSI_FLAG_GLOBAL}, + { &key_LOCK_server_started, "LOCK_server_started", PSI_FLAG_GLOBAL}, + { &key_LOCK_status, "LOCK_status", PSI_FLAG_GLOBAL}, + { &key_LOCK_system_variables_hash, "LOCK_system_variables_hash", PSI_FLAG_GLOBAL}, + { &key_LOCK_stats, "LOCK_stats", PSI_FLAG_GLOBAL}, + { &key_LOCK_global_user_client_stats, "LOCK_global_user_client_stats", PSI_FLAG_GLOBAL}, + { &key_LOCK_global_table_stats, "LOCK_global_table_stats", PSI_FLAG_GLOBAL}, + { &key_LOCK_global_index_stats, "LOCK_global_index_stats", PSI_FLAG_GLOBAL}, + { &key_LOCK_wakeup_ready, "THD::LOCK_wakeup_ready", 0}, + { &key_LOCK_wait_commit, "wait_for_commit::LOCK_wait_commit", 0}, + { &key_LOCK_gtid_waiting, "gtid_waiting::LOCK_gtid_waiting", 0}, + { &key_LOCK_thd_data, "THD::LOCK_thd_data", 0}, + { &key_LOCK_thd_kill, "THD::LOCK_thd_kill", 0}, + { &key_LOCK_user_conn, "LOCK_user_conn", PSI_FLAG_GLOBAL}, + { &key_LOCK_uuid_short_generator, "LOCK_uuid_short_generator", PSI_FLAG_GLOBAL}, + { &key_LOG_LOCK_log, "LOG::LOCK_log", 0}, + { &key_master_info_data_lock, "Master_info::data_lock", 0}, + { &key_master_info_start_stop_lock, "Master_info::start_stop_lock", 0}, + { &key_master_info_run_lock, "Master_info::run_lock", 0}, + { &key_master_info_sleep_lock, "Master_info::sleep_lock", 0}, + { &key_master_info_start_alter_lock, "Master_info::start_alter_lock", 0}, + { &key_master_info_start_alter_list_lock, "Master_info::start_alter_lock", 0}, + { &key_mutex_slave_reporting_capability_err_lock, "Slave_reporting_capability::err_lock", 0}, + { &key_relay_log_info_data_lock, "Relay_log_info::data_lock", 0}, + { &key_relay_log_info_log_space_lock, "Relay_log_info::log_space_lock", 0}, + { &key_relay_log_info_run_lock, "Relay_log_info::run_lock", 0}, + { &key_rpl_group_info_sleep_lock, "Rpl_group_info::sleep_lock", 0}, + { &key_structure_guard_mutex, "Query_cache::structure_guard_mutex", 0}, + { &key_TABLE_SHARE_LOCK_ha_data, "TABLE_SHARE::LOCK_ha_data", 0}, + { &key_TABLE_SHARE_LOCK_share, "TABLE_SHARE::LOCK_share", 0}, + { &key_TABLE_SHARE_LOCK_statistics, "TABLE_SHARE::LOCK_statistics", 0}, + { &key_TABLE_SHARE_LOCK_rotation, "TABLE_SHARE::LOCK_rotation", 0}, + { &key_LOCK_error_messages, "LOCK_error_messages", PSI_FLAG_GLOBAL}, + { &key_LOCK_prepare_ordered, "LOCK_prepare_ordered", PSI_FLAG_GLOBAL}, + { &key_LOCK_after_binlog_sync, "LOCK_after_binlog_sync", PSI_FLAG_GLOBAL}, + { &key_LOCK_commit_ordered, "LOCK_commit_ordered", PSI_FLAG_GLOBAL}, + { &key_PARTITION_LOCK_auto_inc, "HA_DATA_PARTITION::LOCK_auto_inc", 0}, + { &key_LOCK_slave_state, "LOCK_slave_state", 0}, + { &key_LOCK_start_thread, "LOCK_start_thread", PSI_FLAG_GLOBAL}, + { &key_LOCK_binlog_state, "LOCK_binlog_state", 0}, + { &key_LOCK_rpl_thread, "LOCK_rpl_thread", 0}, + { &key_LOCK_rpl_thread_pool, "LOCK_rpl_thread_pool", 0}, + { &key_LOCK_parallel_entry, "LOCK_parallel_entry", 0}, + { &key_LOCK_ack_receiver, "Ack_receiver::mutex", 0}, + { &key_LOCK_rpl_semi_sync_master_enabled, "LOCK_rpl_semi_sync_master_enabled", 0}, + { &key_LOCK_binlog, "LOCK_binlog", 0} +}; + +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_LOCK_ssl_refresh, + key_rwlock_THD_list, + key_rwlock_LOCK_all_status_vars; + +static PSI_rwlock_info all_server_rwlocks[]= +{ +#ifdef HAVE_OPENSSL10 + { &key_rwlock_openssl, "CRYPTO_dynlock_value::lock", 0}, +#endif + { &key_rwlock_LOCK_grant, "LOCK_grant", PSI_FLAG_GLOBAL}, + { &key_rwlock_LOCK_logger, "LOGGER::LOCK_logger", 0}, + { &key_rwlock_LOCK_sys_init_connect, "LOCK_sys_init_connect", PSI_FLAG_GLOBAL}, + { &key_rwlock_LOCK_sys_init_slave, "LOCK_sys_init_slave", PSI_FLAG_GLOBAL}, + { &key_LOCK_SEQUENCE, "LOCK_SEQUENCE", 0}, + { &key_rwlock_LOCK_system_variables_hash, "LOCK_system_variables_hash", PSI_FLAG_GLOBAL}, + { &key_rwlock_query_cache_query_lock, "Query_cache_query::lock", 0}, + { &key_rwlock_LOCK_vers_stats, "Vers_field_stats::lock", 0}, + { &key_rwlock_LOCK_stat_serial, "TABLE_SHARE::LOCK_stat_serial", 0}, + { &key_rwlock_LOCK_ssl_refresh, "LOCK_ssl_refresh", PSI_FLAG_GLOBAL }, + { &key_rwlock_THD_list, "THD_list::lock", PSI_FLAG_GLOBAL }, + { &key_rwlock_LOCK_all_status_vars, "LOCK_all_status_vars", PSI_FLAG_GLOBAL } +}; + +#ifdef HAVE_MMAP +PSI_cond_key key_PAGE_cond, key_COND_active, key_COND_pool; +#endif /* HAVE_MMAP */ + +PSI_cond_key key_BINLOG_COND_xid_list, + key_BINLOG_COND_bin_log_updated, key_BINLOG_COND_relay_log_updated, + 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_binlog_send, + key_BINLOG_COND_queue_busy; +PSI_cond_key key_RELAYLOG_COND_relay_log_updated, + key_RELAYLOG_COND_bin_log_updated, key_COND_wakeup_ready, + key_COND_wait_commit; +PSI_cond_key key_RELAYLOG_COND_queue_busy; +PSI_cond_key key_TC_LOG_MMAP_COND_queue_busy; +PSI_cond_key key_COND_rpl_thread_queue, key_COND_rpl_thread, + key_COND_rpl_thread_stop, key_COND_rpl_thread_pool, + key_COND_parallel_entry, key_COND_group_commit_orderer, + key_COND_prepare_ordered; +PSI_cond_key key_COND_wait_gtid, key_COND_gtid_ignore_duplicates; +PSI_cond_key key_COND_ack_receiver; + +static PSI_cond_info all_server_conds[]= +{ +#ifdef HAVE_MMAP + { &key_PAGE_cond, "PAGE::cond", 0}, + { &key_COND_active, "TC_LOG_MMAP::COND_active", 0}, + { &key_COND_pool, "TC_LOG_MMAP::COND_pool", 0}, + { &key_TC_LOG_MMAP_COND_queue_busy, "TC_LOG_MMAP::COND_queue_busy", 0}, +#endif /* HAVE_MMAP */ + { &key_BINLOG_COND_bin_log_updated, "MYSQL_BIN_LOG::COND_bin_log_updated", 0}, { &key_BINLOG_COND_relay_log_updated, "MYSQL_BIN_LOG::COND_relay_log_updated", 0}, + { &key_BINLOG_COND_xid_list, "MYSQL_BIN_LOG::COND_xid_list", 0}, + { &key_BINLOG_COND_binlog_background_thread, "MYSQL_BIN_LOG::COND_binlog_background_thread", 0}, + { &key_BINLOG_COND_binlog_background_thread_end, "MYSQL_BIN_LOG::COND_binlog_background_thread_end", 0}, + { &key_BINLOG_COND_queue_busy, "MYSQL_BIN_LOG::COND_queue_busy", 0}, + { &key_RELAYLOG_COND_relay_log_updated, "MYSQL_RELAY_LOG::COND_relay_log_updated", 0}, + { &key_RELAYLOG_COND_bin_log_updated, "MYSQL_RELAY_LOG::COND_bin_log_updated", 0}, + { &key_RELAYLOG_COND_queue_busy, "MYSQL_RELAY_LOG::COND_queue_busy", 0}, + { &key_COND_wakeup_ready, "THD::COND_wakeup_ready", 0}, + { &key_COND_wait_commit, "wait_for_commit::COND_wait_commit", 0}, + { &key_COND_cache_status_changed, "Query_cache::COND_cache_status_changed", 0}, + { &key_COND_manager, "COND_manager", PSI_FLAG_GLOBAL}, + { &key_COND_server_started, "COND_server_started", PSI_FLAG_GLOBAL}, + { &key_delayed_insert_cond, "Delayed_insert::cond", 0}, + { &key_delayed_insert_cond_client, "Delayed_insert::cond_client", 0}, + { &key_item_func_sleep_cond, "Item_func_sleep::cond", 0}, + { &key_master_info_data_cond, "Master_info::data_cond", 0}, + { &key_master_info_start_cond, "Master_info::start_cond", 0}, + { &key_master_info_stop_cond, "Master_info::stop_cond", 0}, + { &key_master_info_sleep_cond, "Master_info::sleep_cond", 0}, + { &key_relay_log_info_data_cond, "Relay_log_info::data_cond", 0}, + { &key_relay_log_info_log_space_cond, "Relay_log_info::log_space_cond", 0}, + { &key_relay_log_info_start_cond, "Relay_log_info::start_cond", 0}, + { &key_relay_log_info_stop_cond, "Relay_log_info::stop_cond", 0}, + { &key_rpl_group_info_sleep_cond, "Rpl_group_info::sleep_cond", 0}, + { &key_TABLE_SHARE_cond, "TABLE_SHARE::cond", 0}, + { &key_user_level_lock_cond, "User_level_lock::cond", 0}, + { &key_COND_rpl_thread, "COND_rpl_thread", 0}, + { &key_COND_rpl_thread_queue, "COND_rpl_thread_queue", 0}, + { &key_COND_rpl_thread_stop, "COND_rpl_thread_stop", 0}, + { &key_COND_rpl_thread_pool, "COND_rpl_thread_pool", 0}, + { &key_COND_parallel_entry, "COND_parallel_entry", 0}, + { &key_COND_group_commit_orderer, "COND_group_commit_orderer", 0}, + { &key_COND_prepare_ordered, "COND_prepare_ordered", 0}, + { &key_COND_start_thread, "COND_start_thread", PSI_FLAG_GLOBAL}, + { &key_COND_wait_gtid, "COND_wait_gtid", 0}, + { &key_COND_gtid_ignore_duplicates, "COND_gtid_ignore_duplicates", 0}, + { &key_COND_ack_receiver, "Ack_receiver::cond", 0}, + { &key_COND_binlog_send, "COND_binlog_send", 0}, + { &key_TABLE_SHARE_COND_rotation, "TABLE_SHARE::COND_rotation", 0} +}; + +PSI_thread_key key_thread_delayed_insert, + key_thread_handle_manager, key_thread_main, + key_thread_one_connection, key_thread_signal_hand, + key_thread_slave_background, key_rpl_parallel_thread; +PSI_thread_key key_thread_ack_receiver; + +static PSI_thread_info all_server_threads[]= +{ + { &key_thread_delayed_insert, "delayed_insert", 0}, + { &key_thread_handle_manager, "manager", PSI_FLAG_GLOBAL}, + { &key_thread_main, "main", PSI_FLAG_GLOBAL}, + { &key_thread_one_connection, "one_connection", 0}, + { &key_thread_signal_hand, "signal_handler", PSI_FLAG_GLOBAL}, + { &key_thread_slave_background, "slave_background", PSI_FLAG_GLOBAL}, + { &key_thread_ack_receiver, "Ack_receiver", PSI_FLAG_GLOBAL}, + { &key_rpl_parallel_thread, "rpl_parallel_thread", 0} +}; + +#ifdef HAVE_MMAP +PSI_file_key key_file_map; +#endif /* HAVE_MMAP */ + +#endif /* HAVE_PSI_INTERFACE */ + +#ifdef HAVE_PSI_STATEMENT_INTERFACE +PSI_statement_info stmt_info_new_packet; +#endif + +#ifndef EMBEDDED_LIBRARY +void net_before_header_psi(struct st_net *net, void *thd, size_t /* unused: count */) +{ + DBUG_ASSERT(thd); + /* + We only come where when the server is IDLE, waiting for the next command. + Technically, it is a wait on a socket, which may take a long time, + because the call is blocking. + Disable the socket instrumentation, to avoid recording a SOCKET event. + Instead, start explicitly an IDLE event. + */ + MYSQL_SOCKET_SET_STATE(net->vio->mysql_socket, PSI_SOCKET_STATE_IDLE); + MYSQL_START_IDLE_WAIT(static_cast<THD*>(thd)->m_idle_psi, + &static_cast<THD*>(thd)->m_idle_state); +} + +void net_after_header_psi(struct st_net *net, void *user_data, + size_t /* unused: count */, my_bool rc) +{ + THD *thd; + thd= static_cast<THD*> (user_data); + DBUG_ASSERT(thd != NULL); + + /* + The server just got data for a network packet header, + from the network layer. + The IDLE event is now complete, since we now have a message to process. + We need to: + - start a new STATEMENT event + - start a new STAGE event, within this statement, + - start recording SOCKET WAITS events, within this stage. + The proper order is critical to get events numbered correctly, + and nested in the proper parent. + */ + MYSQL_END_IDLE_WAIT(thd->m_idle_psi); + + if (! rc) + { + thd->m_statement_psi= MYSQL_START_STATEMENT(&thd->m_statement_state, + stmt_info_new_packet.m_key, + thd->get_db(), thd->db.length, + thd->charset(), NULL); + + THD_STAGE_INFO(thd, stage_starting); + } + + /* + TODO: consider recording a SOCKET event for the bytes just read, + by also passing count here. + */ + MYSQL_SOCKET_SET_STATE(net->vio->mysql_socket, PSI_SOCKET_STATE_ACTIVE); +} + + +void init_net_server_extension(THD *thd) +{ + /* Start with a clean state for connection events. */ + thd->m_idle_psi= NULL; + thd->m_statement_psi= NULL; + /* Hook up the NET_SERVER callback in the net layer. */ + thd->m_net_server_extension.m_user_data= thd; + thd->m_net_server_extension.m_before_header= net_before_header_psi; + thd->m_net_server_extension.m_after_header= net_after_header_psi; + /* Activate this private extension for the mysqld server. */ + thd->net.extension= & thd->m_net_server_extension; +} +#else +void init_net_server_extension(THD *thd) +{ +} +#endif /* EMBEDDED_LIBRARY */ + + +/** + A log message for the error log, buffered in memory. + Log messages are temporarily buffered when generated before the error log + is initialized, and then printed once the error log is ready. +*/ +class Buffered_log : public Sql_alloc +{ +public: + Buffered_log(enum loglevel level, const char *message); + + ~Buffered_log() = default; + + void print(void); + +private: + /** Log message level. */ + enum loglevel m_level; + /** Log message text. */ + String m_message; +}; + +/** + Constructor. + @param level the message log level + @param message the message text +*/ +Buffered_log::Buffered_log(enum loglevel level, const char *message) + : m_level(level), m_message() +{ + m_message.copy(message, strlen(message), &my_charset_latin1); +} + +/** + Print a buffered log to the real log file. +*/ +void Buffered_log::print() +{ + /* + Since messages are buffered, they can be printed out + of order with other entries in the log. + Add "Buffered xxx" to the message text to prevent confusion. + */ + switch(m_level) + { + case ERROR_LEVEL: + sql_print_error("Buffered error: %s", m_message.c_ptr_safe()); + break; + case WARNING_LEVEL: + sql_print_warning("Buffered warning: %s", m_message.c_ptr_safe()); + break; + case INFORMATION_LEVEL: + /* + Messages printed as "information" still end up in the mysqld *error* log, + but with a [Note] tag instead of an [ERROR] tag. + While this is probably fine for a human reading the log, + it is upsetting existing automated scripts used to parse logs, + because such scripts are likely to not already handle [Note] properly. + INFORMATION_LEVEL messages are simply silenced, on purpose, + to avoid un needed verbosity. + */ + break; + } +} + +/** + Collection of all the buffered log messages. +*/ +class Buffered_logs +{ +public: + Buffered_logs() = default; + + ~Buffered_logs() = default; + + void init(); + void cleanup(); + + void buffer(enum loglevel m_level, const char *msg); + void print(); +private: + /** + Memory root to use to store buffered logs. + This memory root lifespan is between init and cleanup. + Once the buffered logs are printed, they are not needed anymore, + and all the memory used is reclaimed. + */ + MEM_ROOT m_root; + /** List of buffered log messages. */ + List<Buffered_log> m_list; +}; + +void Buffered_logs::init() +{ + init_alloc_root(PSI_NOT_INSTRUMENTED, &m_root, 1024, 0, MYF(0)); +} + +void Buffered_logs::cleanup() +{ + m_list.delete_elements(); + free_root(&m_root, MYF(0)); +} + +/** + Add a log message to the buffer. +*/ +void Buffered_logs::buffer(enum loglevel level, const char *msg) +{ + /* + Do not let Sql_alloc::operator new(size_t) allocate memory, + there is no memory root associated with the main() thread. + Give explicitly the proper memory root to use to + Sql_alloc::operator new(size_t, MEM_ROOT *) instead. + */ + Buffered_log *log= new (&m_root) Buffered_log(level, msg); + if (log) + m_list.push_back(log, &m_root); +} + +/** + Print buffered log messages. +*/ +void Buffered_logs::print() +{ + Buffered_log *log; + List_iterator_fast<Buffered_log> it(m_list); + while ((log= it++)) + log->print(); +} + +/** Logs reported before a logger is available. */ +static Buffered_logs buffered_logs; + +struct my_rnd_struct sql_rand; ///< used by sql_class.cc:THD::THD() + +#ifndef EMBEDDED_LIBRARY + +Dynamic_array<MYSQL_SOCKET> listen_sockets(PSI_INSTRUMENT_MEM, 0); +bool unix_sock_is_online= false; +static int systemd_sock_activation; /* systemd socket activation */ + + +C_MODE_START +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE +/** + Error reporter that buffer log messages. + @param level log message level + @param format log message format string +*/ +static void buffered_option_error_reporter(enum loglevel level, + const char *format, ...) +{ + va_list args; + char buffer[1024]; + + va_start(args, format); + my_vsnprintf(buffer, sizeof(buffer), format, args); + va_end(args); + buffered_logs.buffer(level, buffer); +} +#endif + + +/** + Character set and collation error reporter that prints to sql error log. + @param level log message level + @param format log message format string + + This routine is used to print character set and collation + warnings and errors inside an already running mysqld server, + e.g. when a character set or collation is requested for the very first time + and its initialization does not go well for some reasons. + + Note: At early mysqld initialization stage, + when error log is not yet available, + we use buffered_option_error_reporter() instead, + to print general character set subsystem initialization errors, + such as Index.xml syntax problems, bad XML tag hierarchy, etc. +*/ +static void charset_error_reporter(enum loglevel level, + const char *format, ...) +{ + va_list args; + va_start(args, format); + vprint_msg_to_log(level, format, args); + va_end(args); +} +C_MODE_END + +struct passwd *user_info; +static pthread_t select_thread; +#endif + +/* OS specific variables */ + +#ifdef _WIN32 +HANDLE hEventShutdown; +#endif + + +#ifndef EMBEDDED_LIBRARY +bool mysqld_embedded=0; +#else +bool mysqld_embedded=1; +#endif + +my_bool plugins_are_initialized= FALSE; + +#ifndef DBUG_OFF +static const char* default_dbug_option; +#endif +#ifdef HAVE_LIBWRAP +const char *libwrapName= NULL; +int allow_severity = LOG_INFO; +int deny_severity = LOG_WARNING; +#endif +#ifdef HAVE_QUERY_CACHE +ulong query_cache_min_res_unit= QUERY_CACHE_MIN_RESULT_DATA_SIZE; +Query_cache query_cache; +#endif + + +my_bool opt_use_ssl = 0; +char *opt_ssl_ca= NULL, *opt_ssl_capath= NULL, *opt_ssl_cert= NULL, + *opt_ssl_cipher= NULL, *opt_ssl_key= NULL, *opt_ssl_crl= NULL, + *opt_ssl_crlpath= NULL, *opt_tls_version= NULL; +ulonglong tls_version= 0; + +static scheduler_functions thread_scheduler_struct, extra_thread_scheduler_struct; +scheduler_functions *thread_scheduler= &thread_scheduler_struct, + *extra_thread_scheduler= &extra_thread_scheduler_struct; + +#ifdef HAVE_OPENSSL +#include <openssl/crypto.h> +#if defined(HAVE_OPENSSL10) && !defined(HAVE_WOLFSSL) +typedef struct CRYPTO_dynlock_value +{ + mysql_rwlock_t lock; +} openssl_lock_t; + +static openssl_lock_t *openssl_stdlocks; +static openssl_lock_t *openssl_dynlock_create(const char *, int); +static void openssl_dynlock_destroy(openssl_lock_t *, const char *, int); +static void openssl_lock_function(int, int, const char *, int); +static void openssl_lock(int, openssl_lock_t *, const char *, int); +#endif /* HAVE_OPENSSL10 */ +char *des_key_file; +#ifndef EMBEDDED_LIBRARY +struct st_VioSSLFd *ssl_acceptor_fd; +#endif +#endif /* HAVE_OPENSSL */ + +/** + Number of currently active user connections. +*/ +static Atomic_counter<uint> connection_count; +static Atomic_counter<uint> extra_connection_count; + +my_bool opt_gtid_strict_mode= FALSE; + + +/* Function declarations */ + +pthread_handler_t signal_hand(void *arg); +static int mysql_init_variables(void); +static int get_options(int *argc_ptr, char ***argv_ptr); +static bool add_terminator(DYNAMIC_ARRAY *options); +static bool add_many_options(DYNAMIC_ARRAY *, my_option *, size_t); +extern "C" my_bool mysqld_get_one_option(const struct my_option *, const char *, + const char *); +static int init_thread_environment(); +static char *get_relative_path(const char *path); +static int fix_paths(void); +#ifndef _WIN32 +void handle_connections_sockets(); +#endif + +static bool read_init_file(char *file_name); +pthread_handler_t handle_slave(void *arg); +static void clean_up(bool print_message); +static int test_if_case_insensitive(const char *dir_name); + +#ifndef EMBEDDED_LIBRARY +static bool pid_file_created= false; +static void usage(void); +static void start_signal_handler(void); +static void clean_up_mutexes(void); +static void wait_for_signal_thread_to_end(void); +static void create_pid_file(); +ATTRIBUTE_NORETURN static void mysqld_exit(int exit_code); +#endif +static void delete_pid_file(myf flags); +static void end_ssl(); + + +#ifndef EMBEDDED_LIBRARY +extern Atomic_counter<uint32_t> local_connection_thread_count; + +uint THD_count::connection_thd_count() +{ + return value() - + binlog_dump_thread_count - + local_connection_thread_count; +} + + +/**************************************************************************** +** Code to end mysqld +****************************************************************************/ + +/* common callee of two shutdown phases */ +static void kill_thread(THD *thd) +{ + mysql_mutex_lock(&thd->LOCK_thd_kill); + thd->abort_current_cond_wait(true); + mysql_mutex_unlock(&thd->LOCK_thd_kill); +} + + +/** + First shutdown everything but slave threads and binlog dump connections +*/ +static my_bool kill_thread_phase_1(THD *thd, int *n_threads_awaiting_ack) +{ + DBUG_PRINT("quit", ("Informing thread %ld that it's time to die", + (ulong) thd->thread_id)); + + if (thd->slave_thread || thd->is_binlog_dump_thread() || + (shutdown_wait_for_slaves && + repl_semisync_master.is_thd_awaiting_semisync_ack(thd) && + ++(*n_threads_awaiting_ack))) + return 0; + + if (DBUG_IF("only_kill_system_threads") && !thd->system_thread) + return 0; + if (DBUG_IF("only_kill_system_threads_no_loop") && !thd->system_thread) + return 0; + + thd->awake(KILL_SERVER_HARD); + return 0; +} + + +/** + Last shutdown binlog dump connections +*/ +static my_bool kill_thread_phase_2(THD *thd, void *) +{ + if (shutdown_wait_for_slaves && thd->is_binlog_dump_thread()) + { + thd->set_killed(KILL_SERVER); + } + else + { + thd->set_killed(KILL_SERVER_HARD); + MYSQL_CALLBACK(thread_scheduler, post_kill_notification, (thd)); + } + kill_thread(thd); + return 0; +} + + +/* associated with the kill thread phase 1 */ +static my_bool warn_threads_active_after_phase_1(THD *thd, void *) +{ + if (!thd->is_binlog_dump_thread() && thd->vio_ok()) + sql_print_warning("%s: Thread %llu (user : '%s') did not exit\n", my_progname, + (ulonglong) thd->thread_id, + (thd->main_security_ctx.user ? + thd->main_security_ctx.user : "")); + return 0; +} + + +/* associated with the kill thread phase 2 */ +static my_bool warn_threads_active_after_phase_2(THD *thd, void *) +{ + mysql_mutex_lock(&thd->LOCK_thd_data); + // dump thread may not have yet (or already) current_linfo set + sql_print_warning("Dump thread %llu last sent to server %lu " + "binlog file:pos %s:%llu", + thd->thread_id, thd->variables.server_id, + thd->current_linfo ? + my_basename(thd->current_linfo->log_file_name) : "NULL", + thd->current_linfo ? thd->current_linfo->pos : 0); + mysql_mutex_unlock(&thd->LOCK_thd_data); + + return 0; +} + + +/** + Kills main thread. + + @note this function is responsible for setting abort_loop and breaking + poll() in main thread. Shutdown as such is supposed to be performed by main + thread itself. +*/ + +static void break_connect_loop() +{ +#ifdef EXTRA_DEBUG + int count=0; +#endif + + abort_loop= 1; + +#if defined(_WIN32) + mysqld_win_initiate_shutdown(); +#else + /* Avoid waiting for ourselves when thread-handling=no-threads. */ + if (pthread_equal(pthread_self(), select_thread)) + return; + DBUG_PRINT("quit", ("waiting for select thread: %lu", + (ulong)select_thread)); + + mysql_mutex_lock(&LOCK_start_thread); + while (select_thread_in_use) + { + struct timespec abstime; + int UNINIT_VAR(error); + DBUG_PRINT("info",("Waiting for select thread")); + +#ifndef DONT_USE_THR_ALARM + if (pthread_kill(select_thread, thr_client_alarm)) + break; // allready dead +#endif + set_timespec(abstime, 2); + for (uint tmp=0 ; tmp < 10 && select_thread_in_use; tmp++) + { + error= mysql_cond_timedwait(&COND_start_thread, &LOCK_start_thread, + &abstime); + if (error != EINTR) + break; + } +#ifdef EXTRA_DEBUG + if (error != 0 && error != ETIMEDOUT && !count++) + sql_print_error("Got error %d from mysql_cond_timedwait", error); +#endif + } + mysql_mutex_unlock(&LOCK_start_thread); +#endif /* _WIN32 */ +} + + +/** + A wrapper around kill_main_thrad(). + + Sets shutdown user. This function may be called by multiple threads + concurrently, thus it performs safe update of shutdown_user + (first thread wins). +*/ + +void kill_mysql(THD *thd) +{ + char user_host_buff[MAX_USER_HOST_SIZE + 1]; + char *user, *expected_shutdown_user= 0; + + make_user_name(thd, user_host_buff); + + if ((user= my_strdup(PSI_NOT_INSTRUMENTED, user_host_buff, MYF(0))) && + !shutdown_user.compare_exchange_strong(expected_shutdown_user, + user, + std::memory_order_relaxed, + std::memory_order_relaxed)) + { + my_free(user); + } + + shutdown_thread_id= thd->thread_id; + DBUG_EXECUTE_IF("mysql_admin_shutdown_wait_for_slaves", + thd->lex->is_shutdown_wait_for_slaves= true;); +#ifdef ENABLED_DEBUG_SYNC + DBUG_EXECUTE_IF("simulate_delay_at_shutdown", + { + DBUG_ASSERT(binlog_dump_thread_count == 3); + const char act[]= + "now " + "SIGNAL greetings_from_kill_mysql"; + DBUG_ASSERT(!debug_sync_set_action(thd, + STRING_WITH_LEN(act))); + };); +#endif + + if (thd->lex->is_shutdown_wait_for_slaves) + shutdown_wait_for_slaves= true; + break_connect_loop(); +} + + +static void close_connections(void) +{ + DBUG_ENTER("close_connections"); + + /* Clear thread cache */ + thread_cache.final_flush(); + + /* Abort listening to new connections */ + DBUG_PRINT("quit",("Closing sockets")); + /* Protect against pthread_kill() calling close_server_sock(*) */ + mysql_mutex_lock(&LOCK_start_thread); + for (uint i= 0 ; i < listen_sockets.elements() ; i++) + { + MYSQL_SOCKET *sock= listen_sockets.get_pos(i); + (void) mysql_socket_close(*sock); + if (sock->is_unix_domain_socket && !systemd_sock_activation) + { + (void) unlink(mysqld_unix_port); + } + } + /* + The following is needed to the threads stuck in + setup_connection_thread_globals() + to continue. + */ + listen_sockets.free_memory(); + mysql_mutex_unlock(&LOCK_start_thread); + + end_thr_alarm(0); // Abort old alarms. + + while (CONNECT::count) + my_sleep(100); + + /* + First signal all threads that it's time to die + This will give the threads some time to gracefully abort their + statements and inform their clients that the server is about to die. + */ + DBUG_EXECUTE_IF("mysqld_delay_kill_threads_phase_1", my_sleep(200000);); + int n_threads_awaiting_ack= 0; + server_threads.iterate(kill_thread_phase_1, &n_threads_awaiting_ack); + + /* + If we are waiting on any ACKs, delay killing the thread until either an ACK + is received or the timeout is hit. + + Allow at max the number of sessions to await a timeout; however, if all + ACKs have been received in less iterations, then quit early + */ + if (shutdown_wait_for_slaves && repl_semisync_master.get_master_enabled()) + { + int waiting_threads= repl_semisync_master.sync_get_master_wait_sessions(); + if (waiting_threads) + sql_print_information("Delaying shutdown to await semi-sync ACK"); + + while (waiting_threads-- > 0) + repl_semisync_master.await_slave_reply(); + } + + DBUG_EXECUTE_IF("delay_shutdown_phase_2_after_semisync_wait", + my_sleep(500000);); + + Events::deinit(); + slave_prepare_for_shutdown(); + ack_receiver.stop(); + + /* + Give threads time to die. + + In 5.5, this was waiting 100 rounds @ 20 milliseconds/round, so as little + as 2 seconds, depending on thread scheduling. + + From 10.0, we increase this to 1000 rounds / 20 seconds. The rationale is + that on a server with heavy I/O load, it is quite possible for eg. an + fsync() of the binlog or whatever to cause something like LOCK_log to be + held for more than 2 seconds. We do not want to force kill threads in + such cases, if it can be avoided. Note that normally, the wait will be + much smaller than even 2 seconds, this is only a safety fallback against + stuck threads so server shutdown is not held up forever. + */ + DBUG_PRINT("info", ("THD_count: %u", THD_count::value())); + + for (int i= 0; THD_count::connection_thd_count() - n_threads_awaiting_ack + && i < 1000; i++) + { + if (DBUG_IF("only_kill_system_threads_no_loop")) + break; + my_sleep(20000); + } + + if (global_system_variables.log_warnings) + server_threads.iterate(warn_threads_active_after_phase_1); + +#ifdef WITH_WSREP + if (wsrep_inited == 1) + { + wsrep_deinit(true); + } + wsrep_sst_auth_free(); +#endif + /* All threads has now been aborted */ + DBUG_PRINT("quit", ("Waiting for threads to die (count=%u)", + THD_count::connection_thd_count() - n_threads_awaiting_ack)); + + while (THD_count::connection_thd_count() - n_threads_awaiting_ack) + { + if (DBUG_IF("only_kill_system_threads_no_loop")) + break; + my_sleep(1000); + } + + /* Kill phase 2 */ + server_threads.iterate(kill_thread_phase_2); + for (uint64 i= 0; THD_count::value() > local_connection_thread_count; i++) + { + /* + This time the warnings are emitted within the loop to provide a + dynamic view on the shutdown status through the errorlog. + */ + if (global_system_variables.log_warnings > 2 && i % 60000 == 0) + server_threads.iterate(warn_threads_active_after_phase_2); + my_sleep(1000); + } + /* End of kill phase 2 */ + + DBUG_PRINT("quit",("close_connections thread")); + DBUG_VOID_RETURN; +} + +#endif /*EMBEDDED_LIBRARY*/ + + +extern "C" sig_handler print_signal_warning(int sig) +{ + if (global_system_variables.log_warnings) + sql_print_warning("Got signal %d from thread %u", sig, + (uint)my_thread_id()); +#ifdef SIGNAL_HANDLER_RESET_ON_DELIVERY + my_sigset(sig,print_signal_warning); /* int. thread system calls */ +#endif +#if !defined(_WIN32) + if (sig == SIGALRM) + alarm(2); /* reschedule alarm */ +#endif +} + +#ifdef _WIN32 +typedef void (*report_svc_status_t)(DWORD current_state, DWORD win32_exit_code, + DWORD wait_hint); +static void dummy_svc_status(DWORD, DWORD, DWORD) {} +static report_svc_status_t my_report_svc_status= dummy_svc_status; +#endif + +#ifndef EMBEDDED_LIBRARY +extern "C" void unireg_abort(int exit_code) +{ + DBUG_ENTER("unireg_abort"); + + if (opt_help) + usage(); + else if (exit_code) + sql_print_error("Aborting"); + /* Don't write more notes to the log to not hide error message */ + disable_log_notes= 1; + +#ifdef WITH_WSREP + // Note that we do not have thd here, thus can't use + // WSREP(thd) + + if (WSREP_ON && + Wsrep_server_state::is_inited() && + Wsrep_server_state::instance().state() != wsrep::server_state::s_disconnected) + { + /* + This is an abort situation, we cannot expect to gracefully close all + wsrep threads here, we can only diconnect from service + */ + wsrep_close_client_connections(FALSE); + Wsrep_server_state::instance().disconnect(); + WSREP_INFO("Service disconnected."); + wsrep_close_threads(NULL); /* this won't close all threads */ + sleep(1); /* so give some time to exit for those which can */ + WSREP_INFO("Some threads may fail to exit."); + } + + if (WSREP_ON && wsrep_inited) + { + wsrep_deinit(true); + wsrep_deinit_server(); + } + wsrep_sst_auth_free(); +#endif // WITH_WSREP + + clean_up(!opt_abort && (exit_code || !opt_bootstrap)); /* purecov: inspected */ + DBUG_PRINT("quit",("done with cleanup in unireg_abort")); + mysqld_exit(exit_code); +} + +static void mysqld_exit(int exit_code) +{ + DBUG_ENTER("mysqld_exit"); + /* + Important note: we wait for the signal thread to end, + but if a kill -15 signal was sent, the signal thread did + spawn the kill_server_thread thread, which is running concurrently. + */ + rpl_deinit_gtid_waiting(); + rpl_deinit_gtid_slave_state(); + wait_for_signal_thread_to_end(); +#ifdef WITH_WSREP + wsrep_deinit_server(); + wsrep_sst_auth_free(); +#endif /* WITH_WSREP */ + mysql_audit_finalize(); + clean_up_mutexes(); + my_end((opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0)); +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + shutdown_performance_schema(); // we do it as late as possible +#endif + set_malloc_size_cb(NULL); + if (global_status_var.global_memory_used) + { + fprintf(stderr, "Warning: Memory not freed: %lld\n", + (longlong) global_status_var.global_memory_used); + if (exit_code == 0 || opt_endinfo) + SAFEMALLOC_REPORT_MEMORY(0); + } + DBUG_LEAVE; +#ifdef _WIN32 + my_report_svc_status(SERVICE_STOPPED, exit_code, 0); +#endif + sd_notify(0, "STATUS=MariaDB server is down"); + exit(exit_code); /* purecov: inspected */ +} + +#endif /* !EMBEDDED_LIBRARY */ + +static void clean_up(bool print_message) +{ + DBUG_PRINT("exit",("clean_up")); + if (cleanup_done++) + return; /* purecov: inspected */ + +#ifdef HAVE_REPLICATION + // We must call end_slave() as clean_up may have been called during startup + end_slave(); + if (use_slave_mask) + my_bitmap_free(&slave_error_mask); +#endif + stop_handle_manager(); + ddl_log_release(); + + logger.cleanup_base(); + + injector::free_instance(); + mysql_bin_log.cleanup(); + + my_tz_free(); + my_dboptions_cache_free(); + ignore_db_dirs_free(); + servers_free(1); +#ifndef NO_EMBEDDED_ACCESS_CHECKS + acl_free(1); + grant_free(); +#endif + query_cache_destroy(); + hostname_cache_free(); + item_func_sleep_free(); + lex_free(); /* Free some memory */ + item_create_cleanup(); + tdc_start_shutdown(); +#ifdef HAVE_REPLICATION + semi_sync_master_deinit(); +#endif + plugin_shutdown(); + udf_free(); + ha_end(); + if (tc_log) + tc_log->close(); + xid_cache_free(); + tdc_deinit(); + mdl_destroy(); + dflt_key_cache= 0; + key_caches.delete_elements(free_key_cache); + wt_end(); + multi_keycache_free(); + sp_cache_end(); + free_status_vars(); + end_thr_alarm(1); /* Free allocated memory */ + end_thr_timer(); + my_free_open_file_info(); + if (defaults_argv) + free_defaults(defaults_argv); + free_tmpdir(&mysql_tmpdir_list); + my_bitmap_free(&temp_pool); + free_max_user_conn(); + free_global_user_stats(); + free_global_client_stats(); + free_global_table_stats(); + free_global_index_stats(); + delete_dynamic(&all_options); // This should be empty + free_all_rpl_filters(); + wsrep_thr_deinit(); + my_uuid_end(); + delete type_handler_data; + delete binlog_filter; + delete global_rpl_filter; + end_ssl(); +#ifndef EMBEDDED_LIBRARY + vio_end(); + listen_sockets.free_memory(); +#endif /*!EMBEDDED_LIBRARY*/ +#if defined(ENABLED_DEBUG_SYNC) + /* End the debug sync facility. See debug_sync.cc. */ + debug_sync_end(); +#endif /* defined(ENABLED_DEBUG_SYNC) */ + + delete_pid_file(MYF(0)); + + if (print_message && my_default_lc_messages && server_start_time) + sql_print_information(ER_DEFAULT(ER_SHUTDOWN_COMPLETE),my_progname); + MYSQL_CALLBACK(thread_scheduler, end, ()); + thread_scheduler= 0; + mysql_library_end(); + finish_client_errs(); + free_root(&startup_root, MYF(0)); + protect_root(&read_only_root, PROT_READ | PROT_WRITE); + free_root(&read_only_root, MYF(0)); + cleanup_errmsgs(); + free_error_messages(); + /* Tell main we are ready */ + logger.cleanup_end(); + sys_var_end(); + free_charsets(); + + my_free(const_cast<char*>(log_bin_basename)); + my_free(const_cast<char*>(log_bin_index)); +#ifndef EMBEDDED_LIBRARY + my_free(const_cast<char*>(relay_log_basename)); + my_free(const_cast<char*>(relay_log_index)); +#endif + free_list(opt_plugin_load_list_ptr); + destroy_proxy_protocol_networks(); + + /* + The following lines may never be executed as the main thread may have + killed us + */ + DBUG_PRINT("quit", ("done with cleanup")); +} /* clean_up */ + + +#ifndef EMBEDDED_LIBRARY + +/** + This is mainly needed when running with purify, but it's still nice to + know that all child threads have died when mysqld exits. +*/ +static void wait_for_signal_thread_to_end() +{ + uint i; + /* + Wait up to 10 seconds for signal thread to die. We use this mainly to + avoid getting warnings that my_thread_end has not been called + */ + for (i= 0 ; i < 100 && signal_thread_in_use; i++) + { + if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL) == ESRCH) + break; + my_sleep(100); // Give it time to die + } +} +#endif /*EMBEDDED_LIBRARY*/ + +static void clean_up_mutexes() +{ + DBUG_ENTER("clean_up_mutexes"); + server_threads.destroy(); + thread_cache.destroy(); + mysql_rwlock_destroy(&LOCK_grant); + mysql_mutex_destroy(&LOCK_start_thread); + mysql_mutex_destroy(&LOCK_status); + mysql_rwlock_destroy(&LOCK_all_status_vars); + mysql_mutex_destroy(&LOCK_delayed_insert); + mysql_mutex_destroy(&LOCK_delayed_status); + mysql_mutex_destroy(&LOCK_delayed_create); + mysql_mutex_destroy(&LOCK_crypt); + mysql_mutex_destroy(&LOCK_user_conn); + mysql_mutex_destroy(&LOCK_thread_id); + mysql_mutex_destroy(&LOCK_stats); + mysql_mutex_destroy(&LOCK_global_user_client_stats); + mysql_mutex_destroy(&LOCK_global_table_stats); + mysql_mutex_destroy(&LOCK_global_index_stats); +#ifdef HAVE_OPENSSL + mysql_mutex_destroy(&LOCK_des_key_file); +#if defined(HAVE_OPENSSL10) && !defined(HAVE_WOLFSSL) + for (int i= 0; i < CRYPTO_num_locks(); ++i) + mysql_rwlock_destroy(&openssl_stdlocks[i].lock); + OPENSSL_free(openssl_stdlocks); +#endif /* HAVE_OPENSSL10 */ +#endif /* HAVE_OPENSSL */ +#ifdef HAVE_REPLICATION + mysql_mutex_destroy(&LOCK_rpl_status); +#endif /* HAVE_REPLICATION */ + mysql_mutex_destroy(&LOCK_active_mi); + mysql_rwlock_destroy(&LOCK_ssl_refresh); + mysql_mutex_destroy(&LOCK_backup_log); + mysql_mutex_destroy(&LOCK_temp_pool); + mysql_rwlock_destroy(&LOCK_sys_init_connect); + mysql_rwlock_destroy(&LOCK_sys_init_slave); + mysql_mutex_destroy(&LOCK_global_system_variables); + mysql_prlock_destroy(&LOCK_system_variables_hash); + mysql_mutex_destroy(&LOCK_short_uuid_generator); + mysql_mutex_destroy(&LOCK_prepared_stmt_count); + mysql_mutex_destroy(&LOCK_error_messages); + mysql_cond_destroy(&COND_start_thread); + mysql_mutex_destroy(&LOCK_server_started); + mysql_cond_destroy(&COND_server_started); + mysql_mutex_destroy(&LOCK_prepare_ordered); + mysql_cond_destroy(&COND_prepare_ordered); + mysql_mutex_destroy(&LOCK_after_binlog_sync); + mysql_mutex_destroy(&LOCK_commit_ordered); +#ifndef EMBEDDED_LIBRARY + mysql_mutex_destroy(&LOCK_error_log); +#endif + DBUG_VOID_RETURN; +} + + +/**************************************************************************** +** Init IP and UNIX socket +****************************************************************************/ + +#ifdef EMBEDDED_LIBRARY +void close_connection(THD *thd, uint sql_errno) +{ +} +#else +static void set_ports() +{ + char *env; + if (!mysqld_port && !opt_disable_networking) + { // Get port if not from commandline + mysqld_port= MYSQL_PORT; + + /* + if builder specifically requested a default port, use that + (even if it coincides with our factory default). + only if they didn't do we check /etc/services (and, failing + on that, fall back to the factory default of 3306). + either default can be overridden by the environment variable + MYSQL_TCP_PORT, which in turn can be overridden with command + line options. + */ + +#if MYSQL_PORT_DEFAULT == 0 +# if !__has_feature(memory_sanitizer) // Work around MSAN deficiency + struct servent *serv_ptr; + if ((serv_ptr= getservbyname("mysql", "tcp"))) + SYSVAR_AUTOSIZE(mysqld_port, ntohs((u_short) serv_ptr->s_port)); +# endif +#endif + if ((env = getenv("MYSQL_TCP_PORT"))) + { + mysqld_port= (uint) atoi(env); + set_sys_var_value_origin(&mysqld_port, sys_var::ENV); + } + } + if (!mysqld_unix_port) + { +#ifdef _WIN32 + mysqld_unix_port= (char*) MYSQL_NAMEDPIPE; +#else + mysqld_unix_port= (char*) MYSQL_UNIX_ADDR; +#endif + if ((env = getenv("MYSQL_UNIX_PORT"))) + { + mysqld_unix_port= env; + set_sys_var_value_origin(&mysqld_unix_port, sys_var::ENV); + } + } +} + +/* Change to run as another user if started with --user */ + +static struct passwd *check_user(const char *user) +{ + myf flags= 0; + if (global_system_variables.log_warnings) + flags|= MY_WME; + if (!opt_bootstrap && !opt_help) + flags|= MY_FAE; + + struct passwd *tmp_user_info= my_check_user(user, MYF(flags)); + + if (!tmp_user_info && my_errno==EINVAL && (flags & MY_FAE)) + unireg_abort(1); + + return tmp_user_info; +} + +static inline void allow_coredumps() +{ +#ifdef PR_SET_DUMPABLE + if (test_flags & TEST_CORE_ON_SIGNAL) + { + /* inform kernel that process is dumpable */ + (void) prctl(PR_SET_DUMPABLE, 1); + } +#endif +} + + +static void set_user(const char *user, struct passwd *user_info_arg) +{ + /* + We can get a SIGSEGV when calling initgroups() on some systems when NSS + is configured to use LDAP and the server is statically linked. We set + calling_initgroups as a flag to the SIGSEGV handler that is then used to + output a specific message to help the user resolve this problem. + */ + calling_initgroups= 1; + int res= my_set_user(user, user_info_arg, MYF(MY_WME)); + calling_initgroups= 0; + if (res) + unireg_abort(1); + allow_coredumps(); +} + +#if !defined(_WIN32) +static void set_effective_user(struct passwd *user_info_arg) +{ + DBUG_ASSERT(user_info_arg != 0); + if (setregid((gid_t)-1, user_info_arg->pw_gid) == -1) + { + sql_perror("setregid"); + unireg_abort(1); + } + if (setreuid((uid_t)-1, user_info_arg->pw_uid) == -1) + { + sql_perror("setreuid"); + unireg_abort(1); + } + allow_coredumps(); +} +#endif + +/** Change root user if started with @c --chroot . */ +static void set_root(const char *path) +{ +#if !defined(_WIN32) + if (chroot(path) == -1) + { + sql_perror("chroot"); + unireg_abort(1); + } + my_setwd("/", MYF(0)); +#endif +} + +/** + Activate usage of a tcp port +*/ + +static void activate_tcp_port(uint port, + Dynamic_array<MYSQL_SOCKET> *sockets, + bool is_extra_port= false) +{ + struct addrinfo *ai, *a = NULL, *head = NULL; + struct addrinfo hints; + int error; + int arg; + char port_buf[NI_MAXSERV]; + const char *real_bind_addr_str; + MYSQL_SOCKET ip_sock= MYSQL_INVALID_SOCKET; + DBUG_ENTER("activate_tcp_port"); + DBUG_PRINT("general",("IP Socket is %d",port)); + + bzero(&hints, sizeof (hints)); + hints.ai_flags= AI_PASSIVE; + hints.ai_socktype= SOCK_STREAM; + hints.ai_family= AF_UNSPEC; + + if (my_bind_addr_str && strcmp(my_bind_addr_str, "*") == 0) + real_bind_addr_str= NULL; // windows doesn't seem to support * here + else + real_bind_addr_str= my_bind_addr_str; + + my_snprintf(port_buf, NI_MAXSERV, "%d", port); + + if (real_bind_addr_str && *real_bind_addr_str) + { + + char *end; + char address[FN_REFLEN]; + + do + { + end= strcend(real_bind_addr_str, ','); + strmake(address, real_bind_addr_str, (uint) (end - real_bind_addr_str)); + + error= getaddrinfo(address, port_buf, &hints, &ai); + if (unlikely(error != 0)) + { + DBUG_PRINT("error", ("Got error: %d from getaddrinfo()", error)); + + sql_print_error("%s: %s", ER_DEFAULT(ER_IPSOCK_ERROR), + gai_strerror(error)); + unireg_abort(1); /* purecov: tested */ + } + + if (!head) + { + head= ai; + } + if (a) + { + a->ai_next= ai; + } + a= ai; + while (a->ai_next) + { + a= a->ai_next; + } + + real_bind_addr_str= end + 1; + } while (*end); + } + else + { + error= getaddrinfo(real_bind_addr_str, port_buf, &hints, &ai); + head= ai; + } + + for (a= head; a != NULL; a= a->ai_next) + { + ip_sock= mysql_socket_socket(key_socket_tcpip, a->ai_family, + a->ai_socktype, a->ai_protocol); + + char ip_addr[INET6_ADDRSTRLEN]; + if (vio_get_normalized_ip_string(a->ai_addr, a->ai_addrlen, + ip_addr, sizeof (ip_addr))) + { + ip_addr[0]= 0; + } + + if (mysql_socket_getfd(ip_sock) == INVALID_SOCKET) + { + sql_print_message_func func= real_bind_addr_str ? sql_print_error + : sql_print_warning; + func("Failed to create a socket for %s '%s': errno: %d.", + (a->ai_family == AF_INET) ? "IPv4" : "IPv6", + (const char *) ip_addr, (int) socket_errno); + } + else + { + ip_sock.address_family= a->ai_family; + sql_print_information("Server socket created on IP: '%s'.", + (const char *) ip_addr); + + if (mysql_socket_getfd(ip_sock) == INVALID_SOCKET) + { + DBUG_PRINT("error",("Got error: %d from socket()",socket_errno)); + sql_perror(ER_DEFAULT(ER_IPSOCK_ERROR)); /* purecov: tested */ + unireg_abort(1); /* purecov: tested */ + } + + mysql_socket_set_thread_owner(ip_sock); + +#ifndef _WIN32 + /* + We should not use SO_REUSEADDR on windows as this would enable a + user to open two mysqld servers with the same TCP/IP port. + */ + arg= 1; + (void) mysql_socket_setsockopt(ip_sock, SOL_SOCKET, SO_REUSEADDR, + (char*)&arg, sizeof(arg)); +#endif /* _WIN32 */ + +#ifdef IPV6_V6ONLY + /* + If an address name resolves to both IPv4 and IPv6 addresses, the server + will listen on them both. With IPV6_V6ONLY unset, listening on an IPv6 + wildcard address may cause listening on an IPv4 wildcard address + to fail. That's why IPV6_V6ONLY needs to be forcefully turned on. + */ + if (a->ai_family == AF_INET6) + { + arg= 1; + (void) mysql_socket_setsockopt(ip_sock, IPPROTO_IPV6, IPV6_V6ONLY, + (char*)&arg, sizeof(arg)); + } +#endif + +#ifdef IP_FREEBIND + arg= 1; + (void) mysql_socket_setsockopt(ip_sock, IPPROTO_IP, IP_FREEBIND, + (char*) &arg, sizeof(arg)); +#endif + /* + Sometimes the port is not released fast enough when stopping and + restarting the server. This happens quite often with the test suite + on busy Linux systems. Retry to bind the address at these intervals: + Sleep intervals: 1, 2, 4, 6, 9, 13, 17, 22, ... + Retry at second: 1, 3, 7, 13, 22, 35, 52, 74, ... + Limit the sequence by mysqld_port_timeout (set --port-open-timeout=#). + */ + int ret; + uint waited, retry, this_wait; + for (waited= 0, retry= 1; ; retry++, waited+= this_wait) + { + if (((ret= mysql_socket_bind(ip_sock, a->ai_addr, a->ai_addrlen)) >= 0 ) + || (socket_errno != SOCKET_EADDRINUSE) + || (waited >= mysqld_port_timeout)) + break; + sql_print_information("Retrying bind on TCP/IP port %u", port); + this_wait= retry * retry / 3 + 1; + sleep(this_wait); + } + + if (ret < 0) + { + char buff[100]; + int s_errno= socket_errno; + sprintf(buff, "Can't start server: Bind on TCP/IP port. Got error: %d", + (int) s_errno); + sql_perror(buff); + /* + Linux will quite happily bind to addresses not present. The + mtr test main.bind_multiple_addresses_resolution relies on this. + For Windows, this is fatal and generates the error: + WSAEADDRNOTAVAIL: The requested address is not valid in its context + In this case, where multiple addresses where specified, maybe + we can live with an error in the log and hope the other addresses + are successful. We catch if no successful bindings occur at the + end of this function. + + FreeBSD returns EADDRNOTAVAIL, and EADDRNOTAVAIL is even in Linux + manual pages. So may was well apply uniform behaviour. + */ +#ifdef _WIN32 + if (s_errno == WSAEADDRNOTAVAIL) + continue; +#endif +#ifdef EADDRNOTAVAIL + if (s_errno == EADDRNOTAVAIL) + continue; +#endif + sql_print_error("Do you already have another server running on " + "port: %u ?", port); + unireg_abort(1); + } + if (mysql_socket_listen(ip_sock,(int) back_log) < 0) + { + sql_perror("Can't start server: listen() on TCP/IP port"); + sql_print_error("listen() on TCP/IP failed with error %d", + socket_errno); + unireg_abort(1); + } + +#ifdef FD_CLOEXEC + (void) fcntl(mysql_socket_getfd(ip_sock), F_SETFD, FD_CLOEXEC); +#endif + ip_sock.is_extra_port= is_extra_port; + sockets->push(ip_sock); + } + } + + freeaddrinfo(head); + if (head && sockets->size() == 0) + { + sql_print_error("No TCP address could be bound to"); + unireg_abort(1); + } + DBUG_VOID_RETURN; +} + + +/** + Activate usage of a systemd activated sockets + i.e started by mariadb.socket +*/ + +static void use_systemd_activated_sockets() +{ +#ifndef __linux__ + return; +#else + char **names = NULL; + int sd_sockets; + DBUG_ENTER("use_systemd_activated_sockets"); + + sd_sockets= sd_listen_fds_with_names(0, &names); + + if (!sd_sockets) + DBUG_VOID_RETURN; + + DBUG_PRINT("general",("Systemd listen_fds is %d", sd_sockets)); + while (sd_sockets--) + { + MYSQL_SOCKET sock; + int stype= 0, accepting= 0, getnameinfo_err; + socklen_t l; + union + { + struct sockaddr sa; + struct sockaddr_storage storage; + struct sockaddr_in in; + struct sockaddr_in6 in6; + struct sockaddr_un un; + } addr; + SOCKET_SIZE_TYPE addrlen= sizeof(addr); + char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV]; + + int fd= SD_LISTEN_FDS_START + sd_sockets; + + if (getsockname(fd, &addr.sa, &addrlen)) + { + sql_print_error("Unable to getsockname on systemd socket activation socket %d," + " errno %d", fd, errno); + goto err; + } + + l= sizeof(stype); + if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &stype, &l) < 0) + { + sql_print_error("Unable to getsockopt(SOL_SOCKET, SO_TYPE) on" + " systemd socket activation socket %d," + " errno %d", fd, errno); + goto err; + } + + if (stype != SOCK_STREAM) + { + sql_print_error("Unknown systemd socket activation socket %d," + " not of type SOCK_STREAM - type %d", fd, stype); + goto err; + } + + l= sizeof(accepting); + if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0) + { + sql_print_error("Unable to getsockopt(SOL_SOCKET, SO_ACCEPTCONN) on" + " systemd socket activation socket %d," + " errno %d", fd, errno); + goto err; + } + + if (!accepting) + { + sql_print_error("Unknown systemd socket activation socket %d," + " is not listening", fd); + goto err; + } + + switch (addr.sa.sa_family) + { + case AF_INET: + sock= mysql_socket_fd(key_socket_tcpip, fd); + sock.is_unix_domain_socket= 0; + mysqld_port= ntohs(addr.in.sin_port); + break; + case AF_INET6: + sock= mysql_socket_fd(key_socket_tcpip, fd); + sock.is_unix_domain_socket= 0; + mysqld_port= ntohs(addr.in6.sin6_port); + break; + case AF_UNIX: + sock= mysql_socket_fd(key_socket_unix, fd); + sock.is_unix_domain_socket= 1; + break; + default: + sql_print_error("Unknown systemd socket activation socket %d," + " not UNIX or INET socket", fd); + goto err; + } + + /* + We check names!=NULL here because sd_listen_fds_with_names maybe + just sd_listen_fds on older pre v227 systemd + */ + sock.is_extra_port= names && strcmp(names[sd_sockets], "extra") == 0; + + if (addr.sa.sa_family == AF_UNIX) + { + /* + Handle abstract sockets and present them in @ form. + */ + if (addr.un.sun_path[0] == '\0') + addr.un.sun_path[0] = '@'; + sql_print_information("Using systemd activated unix socket %s%s", + addr.un.sun_path, sock.is_extra_port ? " (extra)" : ""); + memset(addr.un.sun_path, 0, sizeof(addr.un.sun_path)); + } + else + { + getnameinfo_err= getnameinfo(&addr.sa, addrlen, hbuf, sizeof(hbuf), sbuf, + sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV); + if (getnameinfo_err) + sql_print_warning("getnameinfo() on systemd socket activation socket %d" + " failed with error %s(%d)", fd, + gai_strerror(getnameinfo_err), getnameinfo_err); + else + sql_print_information("Using systemd activated socket host %s port %s%s", hbuf, sbuf, + sock.is_extra_port ? " (extra)" : ""); + } + + mysql_socket_set_thread_owner(sock); + listen_sockets.push(sock); + } + systemd_sock_activation= 1; + free(names); + + DBUG_VOID_RETURN; + +err: + free(names); + unireg_abort(1); + DBUG_VOID_RETURN; +#endif /* __linux__ */ +} + + +static void network_init(void) +{ +#ifdef HAVE_SYS_UN_H + struct sockaddr_un UNIXaddr; + int arg; +#endif + DBUG_ENTER("network_init"); + + use_systemd_activated_sockets(); + + if (MYSQL_CALLBACK_ELSE(thread_scheduler, init, (), 0)) + unireg_abort(1); /* purecov: inspected */ + + if (init_proxy_protocol_networks(my_proxy_protocol_networks)) + unireg_abort(1); + + set_ports(); + + if (report_port == 0) + { + SYSVAR_AUTOSIZE(report_port, mysqld_port); + } +#ifndef DBUG_OFF + if (!opt_disable_networking) + DBUG_ASSERT(report_port != 0); +#endif + if (!opt_disable_networking && !opt_bootstrap && !systemd_sock_activation) + { + if (mysqld_port) + activate_tcp_port(mysqld_port, &listen_sockets, + /* is_extra_port= */ false); + if (mysqld_extra_port) + activate_tcp_port(mysqld_extra_port, &listen_sockets, + /* is_extra_port= */ true); + } + +#if defined(HAVE_SYS_UN_H) + /* + ** Create the UNIX socket + */ + if (mysqld_unix_port[0] && !opt_bootstrap && systemd_sock_activation==0) + { + MYSQL_SOCKET unix_sock= MYSQL_INVALID_SOCKET; + size_t port_len; + DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port)); + + if ((port_len= strlen(mysqld_unix_port)) > sizeof(UNIXaddr.sun_path) - 1) + { + sql_print_error("The socket file path is too long (> %u): %s", + (uint) sizeof(UNIXaddr.sun_path) - 1, mysqld_unix_port); + unireg_abort(1); + } + unix_sock= mysql_socket_socket(key_socket_unix, AF_UNIX, SOCK_STREAM, 0); + if (mysql_socket_getfd(unix_sock) < 0) + { + sql_perror("Can't start server : UNIX Socket "); /* purecov: inspected */ + unireg_abort(1); /* purecov: inspected */ + } + + unix_sock.is_unix_domain_socket= true; + listen_sockets.push(unix_sock); + unix_sock_is_online= true; + mysql_socket_set_thread_owner(unix_sock); + + bzero((char*) &UNIXaddr, sizeof(UNIXaddr)); + UNIXaddr.sun_family = AF_UNIX; + strmov(UNIXaddr.sun_path, mysqld_unix_port); +#if defined(__linux__) + /* Abstract socket */ + if (mysqld_unix_port[0] == '@') + { + UNIXaddr.sun_path[0]= '\0'; + port_len+= offsetof(struct sockaddr_un, sun_path); + } + else +#endif + { + (void) unlink(mysqld_unix_port); + port_len= sizeof(UNIXaddr); + } + arg= 1; + (void) mysql_socket_setsockopt(unix_sock,SOL_SOCKET,SO_REUSEADDR, + (char*)&arg, sizeof(arg)); + umask(0); + if (mysql_socket_bind(unix_sock, + reinterpret_cast<struct sockaddr *>(&UNIXaddr), + port_len) < 0) + { + sql_perror("Can't start server : Bind on unix socket"); /* purecov: tested */ + sql_print_error("Do you already have another server running on socket: %s ?",mysqld_unix_port); + unireg_abort(1); /* purecov: tested */ + } + umask(((~my_umask) & 0666)); +#if defined(S_IFSOCK) && defined(SECURE_SOCKETS) + (void) chmod(mysqld_unix_port,S_IFSOCK); /* Fix solaris 2.6 bug */ +#endif + if (mysql_socket_listen(unix_sock,(int) back_log) < 0) + sql_print_warning("listen() on Unix socket failed with error %d", + socket_errno); +#ifdef FD_CLOEXEC + (void) fcntl(mysql_socket_getfd(unix_sock), F_SETFD, FD_CLOEXEC); +#endif + } +#endif + +#ifdef _WIN32 + network_init_win(); +#endif + + DBUG_PRINT("info",("server started")); + DBUG_VOID_RETURN; +} + + +/** + Close a connection. + + @param thd Thread handle. + @param sql_errno The error code to send before disconnect. + + @note + For the connection that is doing shutdown, this is called twice +*/ + +void close_connection(THD *thd, uint sql_errno) +{ + int lvl= (thd->main_security_ctx.user ? 3 : 1); + DBUG_ENTER("close_connection"); + + if (sql_errno) + { + thd->protocol->net_send_error(thd, sql_errno, ER_DEFAULT(sql_errno), NULL); + thd->print_aborted_warning(lvl, ER_DEFAULT(sql_errno)); + } + else if (!thd->main_security_ctx.user) + thd->print_aborted_warning(lvl, "This connection closed normally without" + " authentication"); + + thd->disconnect(); + + MYSQL_CONNECTION_DONE((int) sql_errno, thd->thread_id); + + if (MYSQL_CONNECTION_DONE_ENABLED()) + { + sleep(0); /* Workaround to avoid tailcall optimisation */ + } + mysql_audit_notify_connection_disconnect(thd, sql_errno); + DBUG_VOID_RETURN; +} + + +/** Called when mysqld is aborted with ^C */ +/* ARGSUSED */ +extern "C" sig_handler end_mysqld_signal(int sig __attribute__((unused))) +{ + DBUG_ENTER("end_mysqld_signal"); + /* Don't kill if signal thread is not running */ + if (signal_thread_in_use) + break_connect_loop(); // Take down mysqld nicely + DBUG_VOID_RETURN; /* purecov: deadcode */ +} +#endif /* EMBEDDED_LIBRARY */ + + +/* + Unlink thd from global list of available connections + + SYNOPSIS + unlink_thd() + thd Thread handler +*/ + +void unlink_thd(THD *thd) +{ + DBUG_ENTER("unlink_thd"); + DBUG_PRINT("enter", ("thd: %p", thd)); + + thd->cleanup(); + thd->add_status_to_global(); + server_threads.erase(thd); + +#ifdef WITH_WSREP + /* + Do not decrement when its wsrep system thread. wsrep_applier is set for + applier as well as rollbacker threads. + */ + if (!thd->wsrep_applier) +#endif /* WITH_WSREP */ + --*thd->scheduler->connection_count; + + thd->free_connection(); + + DBUG_VOID_RETURN; +} + + +#if defined(_WIN32) +/* + If server is started as service, the service routine will set + the callback function. +*/ +void mysqld_set_service_status_callback(void (*r)(DWORD, DWORD, DWORD)) +{ + my_report_svc_status= r; +} + +static bool startup_complete() +{ + return hEventShutdown != NULL; +} + +/** + Initiates shutdown on Windows by setting shutdown event. + Reports windows service status. + + If startup was not finished, terminates process (no good + cleanup possible) +*/ +void mysqld_win_initiate_shutdown() +{ + if (startup_complete()) + { + my_report_svc_status(SERVICE_STOP_PENDING, 0, 0); + abort_loop= 1; + if (!SetEvent(hEventShutdown)) + /* This should never fail.*/ + abort(); + } + else + { + my_report_svc_status(SERVICE_STOPPED, 1, 0); + TerminateProcess(GetCurrentProcess(), 1); + } +} + +/* + Signal when server has started and can accept connections. +*/ +void mysqld_win_set_startup_complete() +{ + my_report_svc_status(SERVICE_RUNNING, 0, 0); + DBUG_ASSERT(startup_complete()); +} + + +void mysqld_win_extend_service_timeout(DWORD sec) +{ + my_report_svc_status((DWORD)-1, 0, 2*1000*sec); +} + + +void mysqld_win_set_service_name(const char *name) +{ + if (stricmp(name, "mysql")) + load_default_groups[array_elements(load_default_groups) - 2]= name; +} + +/* + On Windows, we use native SetConsoleCtrlHandler for handle events like Ctrl-C + with graceful shutdown. + Also, we do not use signal(), but SetUnhandledExceptionFilter instead - as it + provides possibility to pass the exception to just-in-time debugger, collect + dumps and potentially also the exception and thread context used to output + callstack. +*/ + +static BOOL WINAPI console_event_handler( DWORD type ) +{ + static const char *names[]= { + "CTRL_C_EVENT","CTRL_BREAK_EVENT", "CTRL_CLOSE_EVENT", "", "", + "CTRL_LOGOFF_EVENT", "CTRL_SHUTDOWN_EVENT"}; + + switch (type) + { + case CTRL_C_EVENT: + case CTRL_BREAK_EVENT: + sql_print_information("console_event_handler: received %s event, shutting down", + names[type]); + mysqld_win_initiate_shutdown(); + return TRUE; + case CTRL_CLOSE_EVENT: + sql_print_information("console_event_handler: received CTRL_CLOSE_EVENT event, terminating"); + TerminateProcess(GetCurrentProcess(), 1); + return TRUE; + default: + return FALSE; + } +} + + +#ifdef DEBUG_UNHANDLED_EXCEPTION_FILTER +#define DEBUGGER_ATTACH_TIMEOUT 120 +/* + Wait for debugger to attach and break into debugger. If debugger is + not attached, resume after timeout. +*/ +static void wait_for_debugger(int timeout_sec) +{ + if(!IsDebuggerPresent()) + { + int i; + printf("Waiting for debugger to attach, pid=%u\n",GetCurrentProcessId()); + fflush(stdout); + for(i= 0; i < timeout_sec; i++) + { + Sleep(1000); + if(IsDebuggerPresent()) + { + /* Break into debugger */ + __debugbreak(); + return; + } + } + printf("pid=%u, debugger not attached after %d seconds, resuming\n",GetCurrentProcessId(), + timeout_sec); + fflush(stdout); + } +} +#endif /* DEBUG_UNHANDLED_EXCEPTION_FILTER */ + +static LONG WINAPI my_unhandler_exception_filter(EXCEPTION_POINTERS *ex_pointers) +{ + static BOOL first_time= TRUE; + if(!first_time) + { + /* + This routine can be called twice, typically + when detaching in JIT debugger. + Return EXCEPTION_EXECUTE_HANDLER to terminate process. + */ + return EXCEPTION_EXECUTE_HANDLER; + } + first_time= FALSE; +#ifdef DEBUG_UNHANDLED_EXCEPTION_FILTER + /* + Unfortunately there is no clean way to debug unhandled exception filters, + as debugger does not stop there(also documented in MSDN) + To overcome, one could put a MessageBox, but this will not work in service. + Better solution is to print error message and sleep some minutes + until debugger is attached + */ + wait_for_debugger(DEBUGGER_ATTACH_TIMEOUT); +#endif /* DEBUG_UNHANDLED_EXCEPTION_FILTER */ + __try + { + my_set_exception_pointers(ex_pointers); + handle_fatal_signal(ex_pointers->ExceptionRecord->ExceptionCode); + } + __except(EXCEPTION_EXECUTE_HANDLER) + { + DWORD written; + const char msg[] = "Got exception in exception handler!\n"; + WriteFile(GetStdHandle(STD_OUTPUT_HANDLE),msg, sizeof(msg)-1, + &written,NULL); + } + /* + Return EXCEPTION_CONTINUE_SEARCH to give JIT debugger + (drwtsn32 or vsjitdebugger) possibility to attach, + if JIT debugger is configured. + Windows Error reporting might generate a dump here. + */ + return EXCEPTION_CONTINUE_SEARCH; +} + + +void init_signals(void) +{ + SetConsoleCtrlHandler(console_event_handler,TRUE); + + /* Avoid MessageBox()es*/ + _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE); + _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR); + _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE); + _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR); + _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE); + _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR); + + /* + Do not use SEM_NOGPFAULTERRORBOX in the following SetErrorMode (), + because it would prevent JIT debugger and Windows error reporting + from working. We need WER or JIT-debugging, since our own unhandled + exception filter is not guaranteed to work in all situation + (like heap corruption or stack overflow) + */ + SetErrorMode(SetErrorMode(0) | SEM_FAILCRITICALERRORS + | SEM_NOOPENFILEERRORBOX); + if(!opt_debugging) + SetUnhandledExceptionFilter(my_unhandler_exception_filter); +} + + +static void start_signal_handler(void) +{ +#ifndef EMBEDDED_LIBRARY + // Save vm id of this process + if (!opt_bootstrap) + create_pid_file(); +#endif /* EMBEDDED_LIBRARY */ +} + + +static void check_data_home(const char *path) +{} + +#endif /* _WIN32 */ + + +#if BACKTRACE_DEMANGLE +#include <cxxabi.h> +extern "C" char *my_demangle(const char *mangled_name, int *status) +{ + return abi::__cxa_demangle(mangled_name, NULL, NULL, status); +} +#endif + + +#ifdef DBUG_ASSERT_AS_PRINTF +extern "C" void +mariadb_dbug_assert_failed(const char *assert_expr, const char *file, + unsigned long line) +{ + fprintf(stderr, "Warning: assertion failed: %s at %s line %lu\n", + assert_expr, file, line); + if (opt_stack_trace) + { + fprintf(stderr, "Attempting backtrace to find out the reason for the assert:\n"); + my_print_stacktrace(NULL, (ulong) my_thread_stack_size, 1); + } +} +#endif /* DBUG_ASSERT_AS_PRINT */ + +#if !defined(_WIN32) +#ifndef SA_RESETHAND +#define SA_RESETHAND 0 +#endif /* SA_RESETHAND */ +#ifndef SA_NODEFER +#define SA_NODEFER 0 +#endif /* SA_NODEFER */ + +#ifndef EMBEDDED_LIBRARY + +void init_signals(void) +{ + sigset_t set; + struct sigaction sa; + DBUG_ENTER("init_signals"); + + my_sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called! + + if (opt_stack_trace || (test_flags & TEST_CORE_ON_SIGNAL)) + { + sa.sa_flags = SA_RESETHAND | SA_NODEFER; + sigemptyset(&sa.sa_mask); + sigprocmask(SIG_SETMASK,&sa.sa_mask,NULL); + +#if defined(__amiga__) + sa.sa_handler=(void(*)())handle_fatal_signal; +#else + sa.sa_handler=handle_fatal_signal; +#endif + sigaction(SIGSEGV, &sa, NULL); + sigaction(SIGABRT, &sa, NULL); +#ifdef SIGBUS + sigaction(SIGBUS, &sa, NULL); +#endif + sigaction(SIGILL, &sa, NULL); + sigaction(SIGFPE, &sa, NULL); + } + +#ifdef HAVE_GETRLIMIT + if (test_flags & TEST_CORE_ON_SIGNAL) + { + /* Change limits so that we will get a core file */ + STRUCT_RLIMIT rl; + rl.rlim_cur = rl.rlim_max = (rlim_t) RLIM_INFINITY; + if (setrlimit(RLIMIT_CORE, &rl) && global_system_variables.log_warnings) + sql_print_warning("setrlimit could not change the size of core files to 'infinity'; We may not be able to generate a core file on signals"); + } +#endif + (void) sigemptyset(&set); + my_sigset(SIGPIPE,SIG_IGN); + sigaddset(&set,SIGPIPE); +#ifndef IGNORE_SIGHUP_SIGQUIT + sigaddset(&set,SIGQUIT); + sigaddset(&set,SIGHUP); +#endif + sigaddset(&set,SIGTERM); + + /* Fix signals if blocked by parents (can happen on Mac OS X) */ + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; + sa.sa_handler = print_signal_warning; + sigaction(SIGTERM, &sa, (struct sigaction*) 0); + sa.sa_flags = 0; + sa.sa_handler = print_signal_warning; + sigaction(SIGHUP, &sa, (struct sigaction*) 0); + sigaddset(&set,THR_SERVER_ALARM); + if (test_flags & TEST_SIGINT) + { + /* Allow SIGINT to break mysqld. This is for debugging with --gdb */ + my_sigset(SIGINT, end_mysqld_signal); + sigdelset(&set, SIGINT); + } + else + { + sigaddset(&set,SIGINT); +#ifdef SIGTSTP + sigaddset(&set,SIGTSTP); +#endif + } + + sigprocmask(SIG_SETMASK,&set,NULL); + pthread_sigmask(SIG_SETMASK,&set,NULL); + DBUG_VOID_RETURN; +} + + +static void start_signal_handler(void) +{ + int error; + pthread_attr_t thr_attr; + DBUG_ENTER("start_signal_handler"); + + (void) pthread_attr_init(&thr_attr); + pthread_attr_setscope(&thr_attr,PTHREAD_SCOPE_SYSTEM); + (void) pthread_attr_setdetachstate(&thr_attr,PTHREAD_CREATE_DETACHED); + (void) my_setstacksize(&thr_attr,my_thread_stack_size); + + mysql_mutex_lock(&LOCK_start_thread); + if (unlikely((error= mysql_thread_create(key_thread_signal_hand, + &signal_thread, &thr_attr, + signal_hand, 0)))) + { + sql_print_error("Can't create interrupt-thread (error %d, errno: %d)", + error,errno); + exit(1); + } + mysql_cond_wait(&COND_start_thread, &LOCK_start_thread); + mysql_mutex_unlock(&LOCK_start_thread); + + (void) pthread_attr_destroy(&thr_attr); + DBUG_VOID_RETURN; +} + + +#if defined(USE_ONE_SIGNAL_HAND) +pthread_handler_t kill_server_thread(void *arg __attribute__((unused))) +{ + my_thread_init(); // Initialize new thread + break_connect_loop(); + my_thread_end(); + pthread_exit(0); + return 0; +} +#endif + + +/** This threads handles all signals and alarms. */ +/* ARGSUSED */ +pthread_handler_t signal_hand(void *arg __attribute__((unused))) +{ + sigset_t set; + int sig; + my_thread_init(); // Init new thread + DBUG_ENTER("signal_hand"); + signal_thread_in_use= 1; + + /* + Setup alarm handler + This should actually be '+ max_number_of_slaves' instead of +10, + but the +10 should be quite safe. + */ + init_thr_alarm(thread_scheduler->max_threads + extra_max_connections + + global_system_variables.max_insert_delayed_threads + 10); + if (test_flags & TEST_SIGINT) + { + /* Allow SIGINT to break mysqld. This is for debugging with --gdb */ + (void) sigemptyset(&set); + (void) sigaddset(&set,SIGINT); + (void) pthread_sigmask(SIG_UNBLOCK,&set,NULL); + } + (void) sigemptyset(&set); // Setup up SIGINT for debug +#ifdef USE_ONE_SIGNAL_HAND + (void) sigaddset(&set,THR_SERVER_ALARM); // For alarms +#endif +#ifndef IGNORE_SIGHUP_SIGQUIT + (void) sigaddset(&set,SIGQUIT); + (void) sigaddset(&set,SIGHUP); +#endif + (void) sigaddset(&set,SIGTERM); + (void) sigaddset(&set,SIGTSTP); + + /* Save pid to this process (or thread on Linux) */ + if (!opt_bootstrap) + create_pid_file(); + + /* + signal to start_signal_handler that we are ready + This works by waiting for start_signal_handler to free mutex, + after which we signal it that we are ready. + At this point there is no other threads running, so there + should not be any other mysql_cond_signal() calls. + */ + mysql_mutex_lock(&LOCK_start_thread); + mysql_cond_broadcast(&COND_start_thread); + mysql_mutex_unlock(&LOCK_start_thread); + + (void) pthread_sigmask(SIG_BLOCK,&set,NULL); + for (;;) + { + int error; + int origin; + + while ((error= my_sigwait(&set, &sig, &origin)) == EINTR) /* no-op */; + if (cleanup_done) + { + DBUG_PRINT("quit",("signal_handler: calling my_thread_end()")); + my_thread_end(); + DBUG_LEAVE; // Must match DBUG_ENTER() + signal_thread_in_use= 0; + pthread_exit(0); // Safety + return 0; // Avoid compiler warnings + } + switch (sig) { + case SIGTERM: + case SIGQUIT: + case SIGKILL: +#ifdef EXTRA_DEBUG + sql_print_information("Got signal %d to shutdown server",sig); +#endif + /* switch to the old log message processing */ + logger.set_handlers(global_system_variables.sql_log_slow ? LOG_FILE:LOG_NONE, + opt_log ? LOG_FILE:LOG_NONE); + DBUG_PRINT("info",("Got signal: %d abort_loop: %d",sig,abort_loop)); + if (!abort_loop) + { + /* Delete the instrumentation for the signal thread */ + PSI_CALL_delete_current_thread(); +#ifdef USE_ONE_SIGNAL_HAND + pthread_t tmp; + if (unlikely((error= mysql_thread_create(0, /* Not instrumented */ + &tmp, &connection_attrib, + kill_server_thread, + (void*) &sig)))) + sql_print_error("Can't create thread to kill server (errno= %d)", + error); +#else + my_sigset(sig, SIG_IGN); + break_connect_loop(); // MIT THREAD has a alarm thread +#endif + } + break; + case SIGHUP: +#if defined(SI_KERNEL) + if (!abort_loop && origin != SI_KERNEL) +#elif defined(SI_USER) + if (!abort_loop && origin <= SI_USER) +#else + if (!abort_loop) +#endif + { + int not_used; + mysql_print_status(); // Print some debug info + reload_acl_and_cache((THD*) 0, + (REFRESH_LOG | REFRESH_TABLES | REFRESH_FAST | + REFRESH_GRANT | + REFRESH_THREADS | REFRESH_HOSTS), + (TABLE_LIST*) 0, ¬_used); // Flush logs + + /* reenable logs after the options were reloaded */ + ulonglong fixed_log_output_options= + log_output_options & LOG_NONE ? LOG_TABLE : log_output_options; + + logger.set_handlers(global_system_variables.sql_log_slow + ? fixed_log_output_options : LOG_NONE, + opt_log ? fixed_log_output_options : LOG_NONE); + } + break; +#ifdef USE_ONE_SIGNAL_HAND + case THR_SERVER_ALARM: + process_alarm(sig); // Trigger alarms. + break; +#endif + default: +#ifdef EXTRA_DEBUG + sql_print_warning("Got signal: %d error: %d",sig,error); /* purecov: tested */ +#endif + break; /* purecov: tested */ + } + } + return(0); /* purecov: deadcode */ +} + +static void check_data_home(const char *path) +{} + +#endif /*!EMBEDDED_LIBRARY*/ +#endif /* _WIN32*/ + + +/** + All global error messages are sent here where the first one is stored + for the client. +*/ +/* ARGSUSED */ +extern "C" void my_message_sql(uint error, const char *str, myf MyFlags); + +void my_message_sql(uint error, const char *str, myf MyFlags) +{ + THD *thd= MyFlags & ME_ERROR_LOG_ONLY ? NULL : current_thd; + Sql_condition::enum_warning_level level; + sql_print_message_func func; + DBUG_ENTER("my_message_sql"); + DBUG_PRINT("error", ("error: %u message: '%s' Flag: %lu", error, str, + MyFlags)); + + DBUG_ASSERT(str != NULL); + DBUG_ASSERT(error != 0); + DBUG_ASSERT((MyFlags & ~(ME_BELL | ME_ERROR_LOG | ME_ERROR_LOG_ONLY | + ME_NOTE | ME_WARNING | ME_FATAL)) == 0); + + if (MyFlags & ME_NOTE) + { + level= Sql_condition::WARN_LEVEL_NOTE; + func= sql_print_information; + } + else if (MyFlags & ME_WARNING) + { + level= Sql_condition::WARN_LEVEL_WARN; + func= sql_print_warning; + } + else + { + level= Sql_condition::WARN_LEVEL_ERROR; + func= sql_print_error; + } + + if (likely(thd)) + { + if (unlikely(MyFlags & ME_FATAL)) + thd->is_fatal_error= 1; + (void) thd->raise_condition(error, "\0\0\0\0\0", level, str); + } + else + mysql_audit_general(0, MYSQL_AUDIT_GENERAL_ERROR, error, str); + + /* When simulating OOM, skip writing to error log to avoid mtr errors */ + DBUG_EXECUTE_IF("simulate_out_of_memory", DBUG_VOID_RETURN;); + + if (unlikely(!thd) || thd->log_all_errors || (MyFlags & ME_ERROR_LOG)) + (*func)("%s: %s", my_progname_short, str); /* purecov: inspected */ + DBUG_VOID_RETURN; +} + + +extern "C" void *my_str_malloc_mysqld(size_t size); + +void *my_str_malloc_mysqld(size_t size) +{ + return my_malloc(key_memory_my_str_malloc, size, MYF(MY_FAE)); +} + + +#if 0 +extern "C" void *my_str_realloc_mysqld(void *ptr, size_t size); +void *my_str_realloc_mysqld(void *ptr, size_t size) +{ + return my_realloc(key_memory_my_str_malloc, ptr, size, MYF(MY_FAE)); +} +#endif + + + + +/** + This function is used to check for stack overrun for pathological + cases of regular expressions and 'like' expressions. +*/ +extern "C" int +check_enough_stack_size_slow() +{ + uchar stack_top; + THD *my_thd= current_thd; + if (my_thd != NULL) + return check_stack_overrun(my_thd, STACK_MIN_SIZE * 2, &stack_top); + return 0; +} + + +/* + The call to current_thd in check_enough_stack_size_slow is quite expensive, + so we try to avoid it for the normal cases. + The size of each stack frame for the wildcmp() routines is ~128 bytes, + so checking *every* recursive call is not necessary. + */ +extern "C" int +check_enough_stack_size(int recurse_level) +{ + if (recurse_level % 16 != 0) + return 0; + return check_enough_stack_size_slow(); +} + + +static void init_libstrings() +{ +#ifndef EMBEDDED_LIBRARY + my_string_stack_guard= check_enough_stack_size; +#endif +} + + +/** + Initialize one of the global date/time format variables. + + @param format_type What kind of format should be supported + @param var_ptr Pointer to variable that should be updated + + @retval + 0 ok + @retval + 1 error +*/ + +static bool init_global_datetime_format(timestamp_type format_type, + DATE_TIME_FORMAT *format) +{ + /* + Get command line option + format->format.str is already set by my_getopt + */ + format->format.length= strlen(format->format.str); + + if (parse_date_time_format(format_type, format)) + { + fprintf(stderr, "Wrong date/time format specifier: %s\n", + format->format.str); + return true; + } + return false; +} + +#define COM_STATUS(X) (void*) offsetof(STATUS_VAR, X), SHOW_LONG_STATUS +#define STMT_STATUS(X) COM_STATUS(com_stat[(uint) X]) + +SHOW_VAR com_status_vars[]= { + {"admin_commands", COM_STATUS(com_other)}, + {"alter_db", STMT_STATUS(SQLCOM_ALTER_DB)}, + {"alter_db_upgrade", STMT_STATUS(SQLCOM_ALTER_DB_UPGRADE)}, + {"alter_event", STMT_STATUS(SQLCOM_ALTER_EVENT)}, + {"alter_function", STMT_STATUS(SQLCOM_ALTER_FUNCTION)}, + {"alter_procedure", STMT_STATUS(SQLCOM_ALTER_PROCEDURE)}, + {"alter_server", STMT_STATUS(SQLCOM_ALTER_SERVER)}, + {"alter_sequence", STMT_STATUS(SQLCOM_ALTER_SEQUENCE)}, + {"alter_table", STMT_STATUS(SQLCOM_ALTER_TABLE)}, + {"alter_user", STMT_STATUS(SQLCOM_ALTER_USER)}, + {"analyze", STMT_STATUS(SQLCOM_ANALYZE)}, + {"assign_to_keycache", STMT_STATUS(SQLCOM_ASSIGN_TO_KEYCACHE)}, + {"backup", STMT_STATUS(SQLCOM_BACKUP)}, + {"backup_lock", STMT_STATUS(SQLCOM_BACKUP_LOCK)}, + {"begin", STMT_STATUS(SQLCOM_BEGIN)}, + {"binlog", STMT_STATUS(SQLCOM_BINLOG_BASE64_EVENT)}, + {"call_procedure", STMT_STATUS(SQLCOM_CALL)}, + {"change_db", STMT_STATUS(SQLCOM_CHANGE_DB)}, + {"change_master", STMT_STATUS(SQLCOM_CHANGE_MASTER)}, + {"check", STMT_STATUS(SQLCOM_CHECK)}, + {"checksum", STMT_STATUS(SQLCOM_CHECKSUM)}, + {"commit", STMT_STATUS(SQLCOM_COMMIT)}, + {"compound_sql", STMT_STATUS(SQLCOM_COMPOUND)}, + {"create_db", STMT_STATUS(SQLCOM_CREATE_DB)}, + {"create_event", STMT_STATUS(SQLCOM_CREATE_EVENT)}, + {"create_function", STMT_STATUS(SQLCOM_CREATE_SPFUNCTION)}, + {"create_index", STMT_STATUS(SQLCOM_CREATE_INDEX)}, + {"create_package", STMT_STATUS(SQLCOM_CREATE_PACKAGE)}, + {"create_package_body", STMT_STATUS(SQLCOM_CREATE_PACKAGE_BODY)}, + {"create_procedure", STMT_STATUS(SQLCOM_CREATE_PROCEDURE)}, + {"create_role", STMT_STATUS(SQLCOM_CREATE_ROLE)}, + {"create_sequence", STMT_STATUS(SQLCOM_CREATE_SEQUENCE)}, + {"create_server", STMT_STATUS(SQLCOM_CREATE_SERVER)}, + {"create_table", STMT_STATUS(SQLCOM_CREATE_TABLE)}, + {"create_temporary_table", COM_STATUS(com_create_tmp_table)}, + {"create_trigger", STMT_STATUS(SQLCOM_CREATE_TRIGGER)}, + {"create_udf", STMT_STATUS(SQLCOM_CREATE_FUNCTION)}, + {"create_user", STMT_STATUS(SQLCOM_CREATE_USER)}, + {"create_view", STMT_STATUS(SQLCOM_CREATE_VIEW)}, + {"dealloc_sql", STMT_STATUS(SQLCOM_DEALLOCATE_PREPARE)}, + {"delete", STMT_STATUS(SQLCOM_DELETE)}, + {"delete_multi", STMT_STATUS(SQLCOM_DELETE_MULTI)}, + {"do", STMT_STATUS(SQLCOM_DO)}, + {"drop_db", STMT_STATUS(SQLCOM_DROP_DB)}, + {"drop_event", STMT_STATUS(SQLCOM_DROP_EVENT)}, + {"drop_function", STMT_STATUS(SQLCOM_DROP_FUNCTION)}, + {"drop_index", STMT_STATUS(SQLCOM_DROP_INDEX)}, + {"drop_procedure", STMT_STATUS(SQLCOM_DROP_PROCEDURE)}, + {"drop_package", STMT_STATUS(SQLCOM_DROP_PACKAGE)}, + {"drop_package_body", STMT_STATUS(SQLCOM_DROP_PACKAGE_BODY)}, + {"drop_role", STMT_STATUS(SQLCOM_DROP_ROLE)}, + {"drop_server", STMT_STATUS(SQLCOM_DROP_SERVER)}, + {"drop_sequence", STMT_STATUS(SQLCOM_DROP_SEQUENCE)}, + {"drop_table", STMT_STATUS(SQLCOM_DROP_TABLE)}, + {"drop_temporary_table", COM_STATUS(com_drop_tmp_table)}, + {"drop_trigger", STMT_STATUS(SQLCOM_DROP_TRIGGER)}, + {"drop_user", STMT_STATUS(SQLCOM_DROP_USER)}, + {"drop_view", STMT_STATUS(SQLCOM_DROP_VIEW)}, + {"empty_query", STMT_STATUS(SQLCOM_EMPTY_QUERY)}, + {"execute_immediate", STMT_STATUS(SQLCOM_EXECUTE_IMMEDIATE)}, + {"execute_sql", STMT_STATUS(SQLCOM_EXECUTE)}, + {"flush", STMT_STATUS(SQLCOM_FLUSH)}, + {"get_diagnostics", STMT_STATUS(SQLCOM_GET_DIAGNOSTICS)}, + {"grant", STMT_STATUS(SQLCOM_GRANT)}, + {"grant_role", STMT_STATUS(SQLCOM_GRANT_ROLE)}, + {"ha_close", STMT_STATUS(SQLCOM_HA_CLOSE)}, + {"ha_open", STMT_STATUS(SQLCOM_HA_OPEN)}, + {"ha_read", STMT_STATUS(SQLCOM_HA_READ)}, + {"help", STMT_STATUS(SQLCOM_HELP)}, + {"insert", STMT_STATUS(SQLCOM_INSERT)}, + {"insert_select", STMT_STATUS(SQLCOM_INSERT_SELECT)}, + {"install_plugin", STMT_STATUS(SQLCOM_INSTALL_PLUGIN)}, + {"kill", STMT_STATUS(SQLCOM_KILL)}, + {"load", STMT_STATUS(SQLCOM_LOAD)}, + {"lock_tables", STMT_STATUS(SQLCOM_LOCK_TABLES)}, + {"optimize", STMT_STATUS(SQLCOM_OPTIMIZE)}, + {"preload_keys", STMT_STATUS(SQLCOM_PRELOAD_KEYS)}, + {"prepare_sql", STMT_STATUS(SQLCOM_PREPARE)}, + {"purge", STMT_STATUS(SQLCOM_PURGE)}, + {"purge_before_date", STMT_STATUS(SQLCOM_PURGE_BEFORE)}, + {"release_savepoint", STMT_STATUS(SQLCOM_RELEASE_SAVEPOINT)}, + {"rename_table", STMT_STATUS(SQLCOM_RENAME_TABLE)}, + {"rename_user", STMT_STATUS(SQLCOM_RENAME_USER)}, + {"repair", STMT_STATUS(SQLCOM_REPAIR)}, + {"replace", STMT_STATUS(SQLCOM_REPLACE)}, + {"replace_select", STMT_STATUS(SQLCOM_REPLACE_SELECT)}, + {"reset", STMT_STATUS(SQLCOM_RESET)}, + {"resignal", STMT_STATUS(SQLCOM_RESIGNAL)}, + {"revoke", STMT_STATUS(SQLCOM_REVOKE)}, + {"revoke_all", STMT_STATUS(SQLCOM_REVOKE_ALL)}, + {"revoke_role", STMT_STATUS(SQLCOM_REVOKE_ROLE)}, + {"rollback", STMT_STATUS(SQLCOM_ROLLBACK)}, + {"rollback_to_savepoint",STMT_STATUS(SQLCOM_ROLLBACK_TO_SAVEPOINT)}, + {"savepoint", STMT_STATUS(SQLCOM_SAVEPOINT)}, + {"select", STMT_STATUS(SQLCOM_SELECT)}, + {"set_option", STMT_STATUS(SQLCOM_SET_OPTION)}, + {"show_authors", STMT_STATUS(SQLCOM_SHOW_AUTHORS)}, + {"show_binlog_events", STMT_STATUS(SQLCOM_SHOW_BINLOG_EVENTS)}, + {"show_binlogs", STMT_STATUS(SQLCOM_SHOW_BINLOGS)}, + {"show_charsets", STMT_STATUS(SQLCOM_SHOW_CHARSETS)}, + {"show_collations", STMT_STATUS(SQLCOM_SHOW_COLLATIONS)}, + {"show_contributors", STMT_STATUS(SQLCOM_SHOW_CONTRIBUTORS)}, + {"show_create_db", STMT_STATUS(SQLCOM_SHOW_CREATE_DB)}, + {"show_create_event", STMT_STATUS(SQLCOM_SHOW_CREATE_EVENT)}, + {"show_create_func", STMT_STATUS(SQLCOM_SHOW_CREATE_FUNC)}, + {"show_create_package", STMT_STATUS(SQLCOM_SHOW_CREATE_PACKAGE)}, + {"show_create_package_body",STMT_STATUS(SQLCOM_SHOW_CREATE_PACKAGE_BODY)}, + {"show_create_proc", STMT_STATUS(SQLCOM_SHOW_CREATE_PROC)}, + {"show_create_table", STMT_STATUS(SQLCOM_SHOW_CREATE)}, + {"show_create_trigger", STMT_STATUS(SQLCOM_SHOW_CREATE_TRIGGER)}, + {"show_create_user", STMT_STATUS(SQLCOM_SHOW_CREATE_USER)}, + {"show_databases", STMT_STATUS(SQLCOM_SHOW_DATABASES)}, + {"show_engine_logs", STMT_STATUS(SQLCOM_SHOW_ENGINE_LOGS)}, + {"show_engine_mutex", STMT_STATUS(SQLCOM_SHOW_ENGINE_MUTEX)}, + {"show_engine_status", STMT_STATUS(SQLCOM_SHOW_ENGINE_STATUS)}, + {"show_errors", STMT_STATUS(SQLCOM_SHOW_ERRORS)}, + {"show_events", STMT_STATUS(SQLCOM_SHOW_EVENTS)}, + {"show_explain", STMT_STATUS(SQLCOM_SHOW_EXPLAIN)}, + {"show_analyze", STMT_STATUS(SQLCOM_SHOW_ANALYZE)}, + {"show_fields", STMT_STATUS(SQLCOM_SHOW_FIELDS)}, +#ifndef DBUG_OFF + {"show_function_code", STMT_STATUS(SQLCOM_SHOW_FUNC_CODE)}, +#endif + {"show_function_status", STMT_STATUS(SQLCOM_SHOW_STATUS_FUNC)}, + {"show_generic", STMT_STATUS(SQLCOM_SHOW_GENERIC)}, + {"show_grants", STMT_STATUS(SQLCOM_SHOW_GRANTS)}, + {"show_keys", STMT_STATUS(SQLCOM_SHOW_KEYS)}, + {"show_binlog_status", STMT_STATUS(SQLCOM_SHOW_BINLOG_STAT)}, + {"show_open_tables", STMT_STATUS(SQLCOM_SHOW_OPEN_TABLES)}, + {"show_package_status", STMT_STATUS(SQLCOM_SHOW_STATUS_PACKAGE)}, +#ifndef DBUG_OFF + {"show_package_body_code", STMT_STATUS(SQLCOM_SHOW_PACKAGE_BODY_CODE)}, +#endif + {"show_package_body_status", STMT_STATUS(SQLCOM_SHOW_STATUS_PACKAGE_BODY)}, + {"show_plugins", STMT_STATUS(SQLCOM_SHOW_PLUGINS)}, + {"show_privileges", STMT_STATUS(SQLCOM_SHOW_PRIVILEGES)}, +#ifndef DBUG_OFF + {"show_procedure_code", STMT_STATUS(SQLCOM_SHOW_PROC_CODE)}, +#endif + {"show_procedure_status",STMT_STATUS(SQLCOM_SHOW_STATUS_PROC)}, + {"show_processlist", STMT_STATUS(SQLCOM_SHOW_PROCESSLIST)}, + {"show_profile", STMT_STATUS(SQLCOM_SHOW_PROFILE)}, + {"show_profiles", STMT_STATUS(SQLCOM_SHOW_PROFILES)}, + {"show_relaylog_events", STMT_STATUS(SQLCOM_SHOW_RELAYLOG_EVENTS)}, + {"show_slave_hosts", STMT_STATUS(SQLCOM_SHOW_SLAVE_HOSTS)}, + {"show_slave_status", STMT_STATUS(SQLCOM_SHOW_SLAVE_STAT)}, + {"show_status", STMT_STATUS(SQLCOM_SHOW_STATUS)}, + {"show_storage_engines", STMT_STATUS(SQLCOM_SHOW_STORAGE_ENGINES)}, + {"show_table_status", STMT_STATUS(SQLCOM_SHOW_TABLE_STATUS)}, + {"show_tables", STMT_STATUS(SQLCOM_SHOW_TABLES)}, + {"show_triggers", STMT_STATUS(SQLCOM_SHOW_TRIGGERS)}, + {"show_variables", STMT_STATUS(SQLCOM_SHOW_VARIABLES)}, + {"show_warnings", STMT_STATUS(SQLCOM_SHOW_WARNS)}, + {"shutdown", STMT_STATUS(SQLCOM_SHUTDOWN)}, + {"signal", STMT_STATUS(SQLCOM_SIGNAL)}, + {"start_all_slaves", STMT_STATUS(SQLCOM_SLAVE_ALL_START)}, + {"start_slave", STMT_STATUS(SQLCOM_SLAVE_START)}, + {"stmt_close", COM_STATUS(com_stmt_close)}, + {"stmt_execute", COM_STATUS(com_stmt_execute)}, + {"stmt_fetch", COM_STATUS(com_stmt_fetch)}, + {"stmt_prepare", COM_STATUS(com_stmt_prepare)}, + {"stmt_reprepare", COM_STATUS(com_stmt_reprepare)}, + {"stmt_reset", COM_STATUS(com_stmt_reset)}, + {"stmt_send_long_data", COM_STATUS(com_stmt_send_long_data)}, + {"stop_all_slaves", STMT_STATUS(SQLCOM_SLAVE_ALL_STOP)}, + {"stop_slave", STMT_STATUS(SQLCOM_SLAVE_STOP)}, + {"truncate", STMT_STATUS(SQLCOM_TRUNCATE)}, + {"uninstall_plugin", STMT_STATUS(SQLCOM_UNINSTALL_PLUGIN)}, + {"unlock_tables", STMT_STATUS(SQLCOM_UNLOCK_TABLES)}, + {"update", STMT_STATUS(SQLCOM_UPDATE)}, + {"update_multi", STMT_STATUS(SQLCOM_UPDATE_MULTI)}, + {"xa_commit", STMT_STATUS(SQLCOM_XA_COMMIT)}, + {"xa_end", STMT_STATUS(SQLCOM_XA_END)}, + {"xa_prepare", STMT_STATUS(SQLCOM_XA_PREPARE)}, + {"xa_recover", STMT_STATUS(SQLCOM_XA_RECOVER)}, + {"xa_rollback", STMT_STATUS(SQLCOM_XA_ROLLBACK)}, + {"xa_start", STMT_STATUS(SQLCOM_XA_START)}, + {NullS, NullS, SHOW_LONG} +}; + + +#ifdef HAVE_PSI_STATEMENT_INTERFACE +PSI_statement_info sql_statement_info[(uint) SQLCOM_END + 1]; +PSI_statement_info com_statement_info[(uint) COM_END + 1]; + +/** + Initialize the command names array. + Since we do not want to maintain a separate array, + this is populated from data mined in com_status_vars, + which already has one name for each command. +*/ +void init_sql_statement_info() +{ + size_t first_com= offsetof(STATUS_VAR, com_stat[0]); + size_t last_com= offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_END]); + int record_size= offsetof(STATUS_VAR, com_stat[1]) + - offsetof(STATUS_VAR, com_stat[0]); + size_t ptr; + uint i; + uint com_index; + + static const char* dummy= ""; + for (i= 0; i < ((uint) SQLCOM_END + 1); i++) + { + sql_statement_info[i].m_name= dummy; + sql_statement_info[i].m_flags= 0; + } + + SHOW_VAR *var= &com_status_vars[0]; + while (var->name != NULL) + { + ptr= (size_t)(var->value); + if ((first_com <= ptr) && (ptr < last_com)) + { + com_index= ((int)(ptr - first_com))/record_size; + DBUG_ASSERT(com_index < (uint) SQLCOM_END); + sql_statement_info[com_index].m_name= var->name; + } + var++; + } + + DBUG_ASSERT(strcmp(sql_statement_info[(uint) SQLCOM_SELECT].m_name, "select") == 0); + DBUG_ASSERT(strcmp(sql_statement_info[(uint) SQLCOM_SIGNAL].m_name, "signal") == 0); + + sql_statement_info[(uint) SQLCOM_END].m_name= "error"; +} + +void init_com_statement_info() +{ + uint index; + + for (index= 0; index < (uint) COM_END + 1; index++) + { + com_statement_info[index].m_name= command_name[index].str; + com_statement_info[index].m_flags= 0; + } + + /* "statement/abstract/query" can mutate into "statement/sql/..." */ + com_statement_info[(uint) COM_QUERY].m_flags= PSI_FLAG_MUTABLE; +} +#endif + + +#ifdef SAFEMALLOC +/* + Return the id for the current THD, to allow safemalloc to associate + the memory with the right id. +*/ + +extern "C" my_thread_id mariadb_dbug_id() +{ + THD *thd; + if ((thd= current_thd) && thd->thread_dbug_id) + { + return thd->thread_dbug_id; + } + return my_thread_dbug_id(); +} +#endif /* SAFEMALLOC */ + +/* Thread Mem Usage By P.Linux */ +extern "C" { +static void my_malloc_size_cb_func(long long size, my_bool is_thread_specific) +{ + THD *thd= current_thd; + +#ifndef DBUG_OFF + statistic_increment(malloc_calls, &LOCK_status); +#endif + + /* + When thread specific is set, both mysqld_server_initialized and thd + must be set, and we check that with DBUG_ASSERT. + + However, do not crash, if current_thd is NULL, in release version. + */ + DBUG_ASSERT(!is_thread_specific || (mysqld_server_initialized && thd)); + + if (is_thread_specific && likely(thd)) /* If thread specific memory */ + { + DBUG_PRINT("info", ("thd memory_used: %lld size: %lld", + (longlong) thd->status_var.local_memory_used, + size)); + thd->status_var.local_memory_used+= size; + set_if_bigger(thd->status_var.max_local_memory_used, + thd->status_var.local_memory_used); + if (size > 0 && + thd->status_var.local_memory_used > (int64)thd->variables.max_mem_used && + likely(!thd->killed) && !thd->get_stmt_da()->is_set()) + { + /* Ensure we don't get called here again */ + char buf[50], *buf2; + thd->set_killed(KILL_QUERY); + my_snprintf(buf, sizeof(buf), "--max-session-mem-used=%llu", + thd->variables.max_mem_used); + if ((buf2= (char*) thd->alloc(256))) + { + my_snprintf(buf2, 256, ER_THD(thd, ER_OPTION_PREVENTS_STATEMENT), buf); + thd->set_killed(KILL_QUERY, ER_OPTION_PREVENTS_STATEMENT, buf2); + } + else + { + thd->set_killed(KILL_QUERY, ER_OPTION_PREVENTS_STATEMENT, + "--max-session-mem-used"); + } + } + DBUG_ASSERT((longlong) thd->status_var.local_memory_used >= 0 || + !debug_assert_on_not_freed_memory); + } + else if (likely(thd)) + { + DBUG_PRINT("info", ("global thd memory_used: %lld size: %lld", + (longlong) thd->status_var.global_memory_used, size)); + thd->status_var.global_memory_used+= size; + } + else + update_global_memory_status(size); +} + +int json_escape_string(const char *str,const char *str_end, + char *json, char *json_end) +{ + return json_escape(system_charset_info, + (const uchar *) str, (const uchar *) str_end, + &my_charset_utf8mb4_bin, + (uchar *) json, (uchar *) json_end); +} + + +int json_unescape_json(const char *json_str, const char *json_end, + char *res, char *res_end) +{ + return json_unescape(&my_charset_utf8mb4_bin, + (const uchar *) json_str, (const uchar *) json_end, + system_charset_info, (uchar *) res, (uchar *) res_end); +} + +} /*extern "C"*/ + + +/** + Create a replication file name or base for file names. + + @param[in] opt Value of option, or NULL + @param[in] def Default value if option value is not set. + @param[in] ext Extension to use for the path + + @returns Pointer to string containing the full file path, or NULL if + it was not possible to create the path. + */ +static const char *rpl_make_log_name(PSI_memory_key key, const char *opt, + const char *def, const char *ext) +{ + DBUG_ENTER("rpl_make_log_name"); + DBUG_PRINT("enter", ("opt: %s, def: %s, ext: %s", opt ? opt : "(null)", + def, ext)); + char buff[FN_REFLEN]; + const char *base= opt ? opt : def; + unsigned int options= + MY_REPLACE_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH; + + /* mysql_real_data_home_ptr may be null if no value of datadir has been + specified through command-line or througha cnf file. If that is the + case we make mysql_real_data_home_ptr point to mysql_real_data_home + which, in that case holds the default path for data-dir. + */ + if(mysql_real_data_home_ptr == NULL) + mysql_real_data_home_ptr= mysql_real_data_home; + + if (fn_format(buff, base, mysql_real_data_home_ptr, ext, options)) + DBUG_RETURN(my_strdup(key, buff, MYF(MY_WME))); + else + DBUG_RETURN(NULL); +} + +/* We have to setup my_malloc_size_cb_func early to catch all mallocs */ + +static int init_early_variables() +{ + set_current_thd(0); + set_malloc_size_cb(my_malloc_size_cb_func); + global_status_var.global_memory_used= 0; + init_alloc_root(PSI_NOT_INSTRUMENTED, &startup_root, 1024, 0, MYF(0)); + init_alloc_root(PSI_NOT_INSTRUMENTED, &read_only_root, 1024, 0, + MYF(MY_ROOT_USE_MPROTECT)); + return 0; +} + +#ifdef _WIN32 +static void get_win_tzname(char* buf, size_t size) +{ + static struct + { + const wchar_t* windows_name; + const char* tzdb_name; + } + tz_data[] = + { +#include "win_tzname_data.h" + {0,0} + }; + DYNAMIC_TIME_ZONE_INFORMATION tzinfo; + if (GetDynamicTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID) + { + strncpy(buf, "unknown", size); + return; + } + + for (size_t i= 0; tz_data[i].windows_name; i++) + { + if (wcscmp(tzinfo.TimeZoneKeyName, tz_data[i].windows_name) == 0) + { + strncpy(buf, tz_data[i].tzdb_name, size); + return; + } + } + wcstombs(buf, tzinfo.TimeZoneKeyName, size); + buf[size-1]= 0; + return; +} +#endif + +static int init_common_variables() +{ + umask(((~my_umask) & 0666)); + connection_errors_select= 0; + connection_errors_accept= 0; + connection_errors_tcpwrap= 0; + connection_errors_internal= 0; + connection_errors_max_connection= 0; + connection_errors_peer_addr= 0; + my_decimal_set_zero(&decimal_zero); // set decimal_zero constant; + + init_libstrings(); + tzset(); // Set tzname + +#ifdef SAFEMALLOC + sf_malloc_dbug_id= mariadb_dbug_id; +#endif /* SAFEMALLOC */ +#ifdef DBUG_ASSERT_AS_PRINTF + my_dbug_assert_failed= mariadb_dbug_assert_failed; +#endif /* DBUG_ASSERT_AS_PRINTF */ + + if (!(type_handler_data= new Type_handler_data) || + type_handler_data->init()) + { + sql_perror("Could not allocate type_handler_data"); + return 1; + } + + max_system_variables.pseudo_thread_id= ~(my_thread_id) 0; + server_start_time= flush_status_time= my_time(0); + my_disable_copystat_in_redel= 1; + + global_rpl_filter= new Rpl_filter; + binlog_filter= new Rpl_filter; + if (!global_rpl_filter || !binlog_filter) + { + sql_perror("Could not allocate replication and binlog filters"); + exit(1); + } + +#ifdef HAVE_OPENSSL + if (check_openssl_compatibility()) + { + sql_print_error("Incompatible OpenSSL version. Cannot continue..."); + exit(1); + } +#endif + + if (init_thread_environment() || mysql_init_variables()) + exit(1); + + if (ignore_db_dirs_init()) + exit(1); + + struct tm tm_tmp; + localtime_r(&server_start_time, &tm_tmp); + +#ifdef HAVE_TZNAME +#ifdef _WIN32 + /* + If env.variable TZ is set, derive timezone name from it. + Otherwise, use IANA tz name from get_win_tzname. + */ + if (!getenv("TZ")) + get_win_tzname(system_time_zone, sizeof(system_time_zone)); + else +#endif + { + const char *tz_name= tzname[tm_tmp.tm_isdst != 0 ? 1 : 0]; + strmake_buf(system_time_zone, tz_name); + } +#endif + + /* + We set SYSTEM time zone as reasonable default and + also for failure of my_tz_init() and bootstrap mode. + If user explicitly set time zone with --default-time-zone + option we will change this value in my_tz_init(). + */ + global_system_variables.time_zone= my_tz_SYSTEM; + +#ifdef HAVE_PSI_INTERFACE + /* + Complete the mysql_bin_log initialization. + Instrumentation keys are known only after the performance schema + initialization, and can not be set in the MYSQL_BIN_LOG + constructor (called before main()). + */ + mysql_bin_log.set_psi_keys(key_BINLOG_LOCK_index, + key_BINLOG_COND_relay_log_updated, + key_BINLOG_COND_bin_log_updated, + key_file_binlog, + key_file_binlog_cache, + key_file_binlog_index, + key_file_binlog_index_cache, + key_BINLOG_COND_queue_busy, + key_LOCK_binlog_end_pos); +#endif + + /* + Init mutexes for the global MYSQL_BIN_LOG objects. + As safe_mutex depends on what MY_INIT() does, we can't init the mutexes of + global MYSQL_BIN_LOGs in their constructors, because then they would be + inited before MY_INIT(). So we do it here. + */ + mysql_bin_log.init_pthread_objects(); + + /* TODO: remove this when my_time_t is 64 bit compatible */ + if (!IS_TIME_T_VALID_FOR_TIMESTAMP(server_start_time)) + { + sql_print_error("This server doesn't support dates later than 2038"); + exit(1); + } + + opt_log_basename= const_cast<char *>("mysql"); + + if (gethostname(glob_hostname,sizeof(glob_hostname)) < 0) + { + /* + Get hostname of computer (used by 'show variables') and as default + basename for the pid file if --log-basename is not given. + */ + strmake(glob_hostname, STRING_WITH_LEN("localhost")); + sql_print_warning("gethostname failed, using '%s' as hostname", + glob_hostname); + } + else if (is_filename_allowed(glob_hostname, strlen(glob_hostname), FALSE)) + opt_log_basename= glob_hostname; + + strmake(pidfile_name, opt_log_basename, sizeof(pidfile_name)-5); + strmov(fn_ext(pidfile_name),".pid"); // Add proper extension + SYSVAR_AUTOSIZE(pidfile_name_ptr, pidfile_name); + set_sys_var_value_origin(&opt_tc_log_size, sys_var::AUTO); + + /* + The default-storage-engine entry in my_long_options should have a + non-null default value. It was earlier intialized as + (longlong)"MyISAM" in my_long_options but this triggered a + compiler error in the Sun Studio 12 compiler. As a work-around we + set the def_value member to 0 in my_long_options and initialize it + to the correct value here. + + From MySQL 5.5 onwards, the default storage engine is InnoDB + (except in the embedded server, where the default continues to + be MyISAM) + */ +#if defined(WITH_INNOBASE_STORAGE_ENGINE) + default_storage_engine= const_cast<char *>("InnoDB"); +#else + default_storage_engine= const_cast<char *>("MyISAM"); +#endif + default_tmp_storage_engine= NULL; + gtid_pos_auto_engines= const_cast<char *>(""); + + /* + Add server status variables to the dynamic list of + status variables that is shown by SHOW STATUS. + Later, in plugin_init, and mysql_install_plugin + new entries could be added to that list. + */ + if (add_status_vars(status_vars)) + exit(1); // an error was already reported + +#ifndef DBUG_OFF + /* + We have few debug-only commands in com_status_vars, only visible in debug + builds. for simplicity we enable the assert only in debug builds + + There are 10 Com_ variables which don't have corresponding SQLCOM_ values: + (TODO strictly speaking they shouldn't be here, should not have Com_ prefix + that is. Perhaps Stmt_ ? Comstmt_ ? Prepstmt_ ?) + + Com_admin_commands => com_other + Com_create_temporary_table => com_create_tmp_table + Com_drop_temporary_table => com_drop_tmp_table + Com_stmt_close => com_stmt_close + Com_stmt_execute => com_stmt_execute + Com_stmt_fetch => com_stmt_fetch + Com_stmt_prepare => com_stmt_prepare + Com_stmt_reprepare => com_stmt_reprepare + Com_stmt_reset => com_stmt_reset + Com_stmt_send_long_data => com_stmt_send_long_data + + With this correction the number of Com_ variables (number of elements in + the array, excluding the last element - terminator) must match the number + of SQLCOM_ constants. + */ + compile_time_assert(sizeof(com_status_vars)/sizeof(com_status_vars[0]) - 1 == + SQLCOM_END + 10); +#endif + + if (get_options(&remaining_argc, &remaining_argv)) + exit(1); + if (IS_SYSVAR_AUTOSIZE(&server_version_ptr)) + set_server_version(server_version, sizeof(server_version)); + + mysql_real_data_home_len= uint(strlen(mysql_real_data_home)); + + sf_leaking_memory= 0; // no memory leaks from now on + +#ifndef EMBEDDED_LIBRARY + if (opt_abort && !opt_verbose) + unireg_abort(0); +#endif /*!EMBEDDED_LIBRARY*/ + + DBUG_PRINT("info",("%s Ver %s for %s on %s\n",my_progname, + server_version, SYSTEM_TYPE,MACHINE_TYPE)); + + /* Initialize large page size */ + if (opt_large_pages) + { + DBUG_PRINT("info", ("Large page set")); + if (my_init_large_pages(opt_super_large_pages)) + { + return 1; + } + } + +#if defined(HAVE_POOL_OF_THREADS) + if (IS_SYSVAR_AUTOSIZE(&threadpool_size)) + SYSVAR_AUTOSIZE(threadpool_size, my_getncpus()); +#endif + + /* connections and databases needs lots of files */ + { + uint files, wanted_files, max_open_files, min_tc_size, extra_files, + min_connections; + ulong org_max_connections, org_tc_size; + + /* Number of files reserved for temporary files */ + extra_files= 30; + min_connections= 10; + /* MyISAM requires two file handles per table. */ + wanted_files= (extra_files + max_connections + extra_max_connections + + tc_size * 2 * tc_instances); +#if defined(HAVE_POOL_OF_THREADS) && !defined(_WIN32) + // add epoll or kevent fd for each threadpool group, in case pool of threads is used + wanted_files+= (thread_handling > SCHEDULER_NO_THREADS) ? 0 : threadpool_size; +#endif + + min_tc_size= MY_MIN(tc_size, TABLE_OPEN_CACHE_MIN); + org_max_connections= max_connections; + org_tc_size= tc_size; + + /* + We are trying to allocate no less than max_connections*5 file + handles (i.e. we are trying to set the limit so that they will + be available). In addition, we allocate no less than how much + was already allocated. However below we report a warning and + recompute values only if we got less file handles than were + explicitly requested. No warning and re-computation occur if we + can't get max_connections*5 but still got no less than was + requested (value of wanted_files). + */ + max_open_files= MY_MAX(MY_MAX(wanted_files, + (max_connections + extra_max_connections)*5), + open_files_limit); + files= my_set_max_open_files(max_open_files); + SYSVAR_AUTOSIZE_IF_CHANGED(open_files_limit, files, ulong); + + if (files < max_open_files && global_system_variables.log_warnings) + sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, max_open_files); + + /* If we required too much tc_instances than we reduce */ + SYSVAR_AUTOSIZE_IF_CHANGED(tc_instances, + (uint32) MY_MIN(MY_MAX((files - extra_files - + max_connections)/ + 2/tc_size, + 1), + tc_instances), + uint32); + /* + If we have requested too much file handles than we bring + max_connections in supported bounds. Still leave at least + 'min_connections' connections + */ + SYSVAR_AUTOSIZE_IF_CHANGED(max_connections, + (ulong) MY_MAX(MY_MIN(files- extra_files- + min_tc_size*2*tc_instances, + max_connections), + min_connections), + ulong); + + /* + Decrease tc_size according to max_connections, but + not below min_tc_size. Outer MY_MIN() ensures that we + never increase tc_size automatically (that could + happen if max_connections is decreased above). + */ + SYSVAR_AUTOSIZE_IF_CHANGED(tc_size, + (ulong) MY_MIN(MY_MAX((files - extra_files - + max_connections) / 2 / tc_instances, + min_tc_size), + tc_size), ulong); + DBUG_PRINT("warning", + ("Current limits: max_open_files: %u max_connections: %ld table_cache: %ld", + files, max_connections, tc_size)); + if (global_system_variables.log_warnings > 1 && + (max_connections < org_max_connections || + tc_size < org_tc_size)) + sql_print_warning("Changed limits: max_open_files: %u max_connections: %lu (was %lu) table_cache: %lu (was %lu)", + files, max_connections, org_max_connections, + tc_size, org_tc_size); + } + /* + Max_connections and tc_cache are now set. + Now we can fix other variables depending on this variable. + */ + + /* Fix host_cache_size */ + if (IS_SYSVAR_AUTOSIZE(&host_cache_size)) + { + /* + The default value is 128. + The autoset value is 128, plus 1 for a value of max_connections + up to 500, plus 1 for every increment of 20 over 500 in the + max_connections value, capped at 2000. + */ + uint size= (HOST_CACHE_SIZE + MY_MIN(max_connections, 500) + + MY_MAX(((long) max_connections)-500,0)/20); + SYSVAR_AUTOSIZE(host_cache_size, size); + } + + /* Fix back_log (back_log == 0 added for MySQL compatibility) */ + if (back_log == 0 || IS_SYSVAR_AUTOSIZE(&back_log)) + { + /* + The default value is 150. + The autoset value is 50 + max_connections / 5 capped at 900 + */ + SYSVAR_AUTOSIZE(back_log, MY_MIN(900, (50 + max_connections / 5))); + } + + unireg_init(opt_specialflag); /* Set up extern variabels */ + if (!(my_default_lc_messages= + my_locale_by_name(lc_messages))) + { + sql_print_error("Unknown locale: '%s'", lc_messages); + return 1; + } + + if (init_errmessage()) /* Read error messages from file */ + return 1; + global_system_variables.lc_messages= my_default_lc_messages; + global_system_variables.errmsgs= my_default_lc_messages->errmsgs->errmsgs; + init_client_errs(); + mysql_library_init(unused,unused,unused); /* for replication */ + lex_init(); + if (item_create_init()) + return 1; + item_init(); + /* + Process a comma-separated character set list and choose + the first available character set. This is mostly for + test purposes, to be able to start "mysqld" even if + the requested character set is not available (see bug#18743). + */ + myf utf8_flag= global_system_variables.old_behavior & + OLD_MODE_UTF8_IS_UTF8MB3 ? MY_UTF8_IS_UTF8MB3 : 0; + for (;;) + { + char *next_character_set_name= strchr(default_character_set_name, ','); + if (next_character_set_name) + *next_character_set_name++= '\0'; + if (!(default_charset_info= + get_charset_by_csname(default_character_set_name, + MY_CS_PRIMARY, MYF(utf8_flag | MY_WME)))) + { + if (next_character_set_name) + { + default_character_set_name= next_character_set_name; + default_collation_name= 0; // Ignore collation + } + else + return 1; // Eof of the list + } + else + break; + } + + if (default_collation_name) + { + CHARSET_INFO *default_collation; + default_collation= get_charset_by_name(default_collation_name, MYF(utf8_flag)); + if (!default_collation) + { +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + buffered_logs.print(); + buffered_logs.cleanup(); +#endif + sql_print_error(ER_DEFAULT(ER_UNKNOWN_COLLATION), default_collation_name); + return 1; + } + if (!my_charset_same(default_charset_info, default_collation)) + { + sql_print_error(ER_DEFAULT(ER_COLLATION_CHARSET_MISMATCH), + default_collation_name, + default_charset_info->cs_name.str); + return 1; + } + default_charset_info= default_collation; + } + /* Set collactions that depends on the default collation */ + global_system_variables.collation_server= default_charset_info; + global_system_variables.collation_database= default_charset_info; + if (is_supported_parser_charset(default_charset_info)) + { + global_system_variables.collation_connection= default_charset_info; + global_system_variables.character_set_results= default_charset_info; + global_system_variables.character_set_client= default_charset_info; + } + else + { + sql_print_warning("'%s' can not be used as client character set. " + "'%s' will be used as default client character set.", + default_charset_info->cs_name.str, + my_charset_latin1.cs_name.str); + global_system_variables.collation_connection= &my_charset_latin1; + global_system_variables.character_set_results= &my_charset_latin1; + global_system_variables.character_set_client= &my_charset_latin1; + } + + if (!(character_set_filesystem= + get_charset_by_csname(character_set_filesystem_name, + MY_CS_PRIMARY, MYF(utf8_flag | MY_WME)))) + return 1; + global_system_variables.character_set_filesystem= character_set_filesystem; + + if (!(my_default_lc_time_names= + my_locale_by_name(lc_time_names_name))) + { + sql_print_error("Unknown locale: '%s'", lc_time_names_name); + return 1; + } + global_system_variables.lc_time_names= my_default_lc_time_names; + + /* check log options and issue warnings if needed */ + if (opt_log && opt_logname && *opt_logname && + !(log_output_options & (LOG_FILE | LOG_NONE))) + sql_print_warning("Although a general log file was specified, " + "log tables are used. " + "To enable logging to files use the --log-output option."); + + if (global_system_variables.sql_log_slow && opt_slow_logname && + *opt_slow_logname && + !(log_output_options & (LOG_FILE | LOG_NONE))) + sql_print_warning("Although a slow query log file was specified, " + "log tables are used. " + "To enable logging to files use the --log-output=file option."); + + if (!opt_logname || !*opt_logname) + make_default_log_name(&opt_logname, ".log", false); + if (!opt_slow_logname || !*opt_slow_logname) + make_default_log_name(&opt_slow_logname, "-slow.log", false); + +#if defined(ENABLED_DEBUG_SYNC) + /* Initialize the debug sync facility. See debug_sync.cc. */ + if (debug_sync_init()) + return 1; /* purecov: tested */ +#endif /* defined(ENABLED_DEBUG_SYNC) */ + +#if (ENABLE_TEMP_POOL) + if (use_temp_pool && my_bitmap_init(&temp_pool,0,1024)) + return 1; +#else + use_temp_pool= 0; +#endif + + if (my_dboptions_cache_init()) + return 1; + + /* + Ensure that lower_case_table_names is set on system where we have case + insensitive names. If this is not done the users MyISAM tables will + get corrupted if accesses with names of different case. + */ + DBUG_PRINT("info", ("lower_case_table_names: %d", lower_case_table_names)); + if(mysql_real_data_home_ptr == NULL || *mysql_real_data_home_ptr == 0) + mysql_real_data_home_ptr= mysql_real_data_home; + SYSVAR_AUTOSIZE(lower_case_file_system, + test_if_case_insensitive(mysql_real_data_home_ptr)); + if (!lower_case_table_names && lower_case_file_system == 1) + { + if (lower_case_table_names_used) + { + sql_print_error("The server option 'lower_case_table_names' is " + "configured to use case sensitive table names but the " + "data directory resides on a case-insensitive file system. " + "Please use a case sensitive file system for your data " + "directory or switch to a case-insensitive table name " + "mode."); + return 1; + } + else + { + if (global_system_variables.log_warnings) + sql_print_warning("Setting lower_case_table_names=2 because file " + "system for %s is case insensitive", mysql_real_data_home_ptr); + SYSVAR_AUTOSIZE(lower_case_table_names, 2); + } + } + else if (lower_case_table_names == 2 && + !(lower_case_file_system= (lower_case_file_system == 1))) + { + if (global_system_variables.log_warnings) + sql_print_warning("lower_case_table_names was set to 2, even though your " + "the file system '%s' is case sensitive. Now setting " + "lower_case_table_names to 0 to avoid future problems.", + mysql_real_data_home_ptr); + SYSVAR_AUTOSIZE(lower_case_table_names, 0); + } + else + { + lower_case_file_system= (lower_case_file_system == 1); + } + + /* Reset table_alias_charset, now that lower_case_table_names is set. */ + table_alias_charset= (lower_case_table_names ? + files_charset_info : + &my_charset_bin); + + if (ignore_db_dirs_process_additions()) + { + sql_print_error("An error occurred while storing ignore_db_dirs to a hash."); + return 1; + } + + if (tls_version & (VIO_TLSv1_0 + VIO_TLSv1_1)) + sql_print_warning("TLSv1.0 and TLSv1.1 are insecure and should not be used for tls_version"); + +#ifdef WITH_WSREP + /* + We need to initialize auxiliary variables, that will be + further keep the original values of auto-increment options + as they set by the user. These variables used to restore + user-defined values of the auto-increment options after + setting of the wsrep_auto_increment_control to 'OFF'. + */ + global_system_variables.saved_auto_increment_increment= + global_system_variables.auto_increment_increment; + global_system_variables.saved_auto_increment_offset= + global_system_variables.auto_increment_offset; +#endif /* WITH_WSREP */ + + return 0; +} + + +static int init_thread_environment() +{ + DBUG_ENTER("init_thread_environment"); + server_threads.init(); + mysql_mutex_init(key_LOCK_start_thread, &LOCK_start_thread, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_status, &LOCK_status, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_delayed_insert, + &LOCK_delayed_insert, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_delayed_status, + &LOCK_delayed_status, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_delayed_create, + &LOCK_delayed_create, MY_MUTEX_INIT_SLOW); + mysql_mutex_init(key_LOCK_crypt, &LOCK_crypt, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_user_conn, &LOCK_user_conn, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_active_mi, &LOCK_active_mi, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_global_system_variables, + &LOCK_global_system_variables, MY_MUTEX_INIT_FAST); + mysql_mutex_record_order(&LOCK_active_mi, &LOCK_global_system_variables); + mysql_prlock_init(key_rwlock_LOCK_system_variables_hash, + &LOCK_system_variables_hash); + mysql_mutex_init(key_LOCK_prepared_stmt_count, + &LOCK_prepared_stmt_count, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_error_messages, + &LOCK_error_messages, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_uuid_short_generator, + &LOCK_short_uuid_generator, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_thread_id, + &LOCK_thread_id, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_stats, &LOCK_stats, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_global_user_client_stats, + &LOCK_global_user_client_stats, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_global_table_stats, + &LOCK_global_table_stats, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_global_index_stats, + &LOCK_global_index_stats, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_prepare_ordered, &LOCK_prepare_ordered, + MY_MUTEX_INIT_SLOW); + mysql_cond_init(key_COND_prepare_ordered, &COND_prepare_ordered, NULL); + mysql_mutex_init(key_LOCK_after_binlog_sync, &LOCK_after_binlog_sync, + MY_MUTEX_INIT_SLOW); + mysql_mutex_init(key_LOCK_commit_ordered, &LOCK_commit_ordered, + MY_MUTEX_INIT_SLOW); + mysql_mutex_init(key_LOCK_backup_log, &LOCK_backup_log, MY_MUTEX_INIT_FAST); + mysql_mutex_init(key_LOCK_temp_pool, &LOCK_temp_pool, MY_MUTEX_INIT_FAST); + +#ifdef HAVE_OPENSSL + mysql_mutex_init(key_LOCK_des_key_file, + &LOCK_des_key_file, MY_MUTEX_INIT_FAST); +#if defined(HAVE_OPENSSL10) && !defined(HAVE_WOLFSSL) + openssl_stdlocks= (openssl_lock_t*) OPENSSL_malloc(CRYPTO_num_locks() * + sizeof(openssl_lock_t)); + for (int i= 0; i < CRYPTO_num_locks(); ++i) + mysql_rwlock_init(key_rwlock_openssl, &openssl_stdlocks[i].lock); + CRYPTO_set_dynlock_create_callback(openssl_dynlock_create); + CRYPTO_set_dynlock_destroy_callback(openssl_dynlock_destroy); + CRYPTO_set_dynlock_lock_callback(openssl_lock); + CRYPTO_set_locking_callback(openssl_lock_function); +#endif /* HAVE_OPENSSL10 */ +#endif /* HAVE_OPENSSL */ + mysql_rwlock_init(key_rwlock_LOCK_sys_init_connect, &LOCK_sys_init_connect); + mysql_rwlock_init(key_rwlock_LOCK_sys_init_slave, &LOCK_sys_init_slave); + mysql_rwlock_init(key_rwlock_LOCK_ssl_refresh, &LOCK_ssl_refresh); + mysql_rwlock_init(key_rwlock_LOCK_grant, &LOCK_grant); + mysql_rwlock_init(key_rwlock_LOCK_all_status_vars, &LOCK_all_status_vars); + mysql_cond_init(key_COND_start_thread, &COND_start_thread, NULL); +#ifdef HAVE_REPLICATION + mysql_mutex_init(key_LOCK_rpl_status, &LOCK_rpl_status, MY_MUTEX_INIT_FAST); +#endif + mysql_mutex_init(key_LOCK_server_started, + &LOCK_server_started, MY_MUTEX_INIT_FAST); + mysql_cond_init(key_COND_server_started, &COND_server_started, NULL); + sp_cache_init(); +#ifdef HAVE_EVENT_SCHEDULER + Events::init_mutexes(); +#endif + init_show_explain_psi_keys(); + /* Parameter for threads created for connections */ + (void) pthread_attr_init(&connection_attrib); + (void) pthread_attr_setdetachstate(&connection_attrib, + PTHREAD_CREATE_DETACHED); + pthread_attr_setscope(&connection_attrib, PTHREAD_SCOPE_SYSTEM); + +#ifdef HAVE_REPLICATION + rpl_init_gtid_slave_state(); + rpl_init_gtid_waiting(); +#endif + + DBUG_RETURN(0); +} + + +#if defined(HAVE_OPENSSL10) && !defined(HAVE_WOLFSSL) +static openssl_lock_t *openssl_dynlock_create(const char *file, int line) +{ + openssl_lock_t *lock= new openssl_lock_t; + mysql_rwlock_init(key_rwlock_openssl, &lock->lock); + return lock; +} + + +static void openssl_dynlock_destroy(openssl_lock_t *lock, const char *file, + int line) +{ + mysql_rwlock_destroy(&lock->lock); + delete lock; +} + + +static void openssl_lock_function(int mode, int n, const char *file, int line) +{ + if (n < 0 || n > CRYPTO_num_locks()) + { + /* Lock number out of bounds. */ + sql_print_error("Fatal: OpenSSL interface problem (n = %d)", n); + abort(); + } + openssl_lock(mode, &openssl_stdlocks[n], file, line); +} + + +static void openssl_lock(int mode, openssl_lock_t *lock, const char *file, + int line) +{ + int err; + char const *what; + + switch (mode) { + case CRYPTO_LOCK|CRYPTO_READ: + what = "read lock"; + err= mysql_rwlock_rdlock(&lock->lock); + break; + case CRYPTO_LOCK|CRYPTO_WRITE: + what = "write lock"; + err= mysql_rwlock_wrlock(&lock->lock); + break; + case CRYPTO_UNLOCK|CRYPTO_READ: + case CRYPTO_UNLOCK|CRYPTO_WRITE: + what = "unlock"; + err= mysql_rwlock_unlock(&lock->lock); + break; + default: + /* Unknown locking mode. */ + sql_print_error("Fatal: OpenSSL interface problem (mode=0x%x)", mode); + abort(); + } + if (err) + { + sql_print_error("Fatal: can't %s OpenSSL lock", what); + abort(); + } +} +#endif /* HAVE_OPENSSL10 */ + + +struct SSL_ACCEPTOR_STATS +{ + long accept; + long accept_good; + long cache_size; + long verify_mode; + long verify_depth; + long zero; + const char *session_cache_mode; + + SSL_ACCEPTOR_STATS(): + accept(),accept_good(),cache_size(),verify_mode(),verify_depth(),zero(), + session_cache_mode("NONE") + { + } + + void init() + { + DBUG_ASSERT(ssl_acceptor_fd !=0 && ssl_acceptor_fd->ssl_context != 0); + SSL_CTX *ctx= ssl_acceptor_fd->ssl_context; + accept= 0; + accept_good= 0; + verify_mode= SSL_CTX_get_verify_mode(ctx); + verify_depth= SSL_CTX_get_verify_depth(ctx); + cache_size= SSL_CTX_sess_get_cache_size(ctx); + switch (SSL_CTX_get_session_cache_mode(ctx)) + { + case SSL_SESS_CACHE_OFF: + session_cache_mode= "OFF"; break; + case SSL_SESS_CACHE_CLIENT: + session_cache_mode= "CLIENT"; break; + case SSL_SESS_CACHE_SERVER: + session_cache_mode= "SERVER"; break; + case SSL_SESS_CACHE_BOTH: + session_cache_mode= "BOTH"; break; + case SSL_SESS_CACHE_NO_AUTO_CLEAR: + session_cache_mode= "NO_AUTO_CLEAR"; break; + case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP: + session_cache_mode= "NO_INTERNAL_LOOKUP"; break; + default: + session_cache_mode= "Unknown"; break; + } + } +}; + +static SSL_ACCEPTOR_STATS ssl_acceptor_stats; +void ssl_acceptor_stats_update(int sslaccept_ret) +{ + statistic_increment(ssl_acceptor_stats.accept, &LOCK_status); + if (!sslaccept_ret) + statistic_increment(ssl_acceptor_stats.accept_good,&LOCK_status); +} + +static void init_ssl() +{ +#if !defined(EMBEDDED_LIBRARY) +/* + Not need to check require_secure_transport on the Linux, + because it always has Unix domain sockets that are secure: +*/ +#ifdef _WIN32 + if (opt_require_secure_transport && + !opt_use_ssl && + !opt_enable_named_pipe && + !opt_bootstrap) + { + sql_print_error("Server is started with --require-secure-transport=ON " + "but no secure transport (SSL or PIPE) are configured."); + unireg_abort(1); + } +#endif +#if defined(HAVE_OPENSSL) + if (opt_use_ssl) + { + enum enum_ssl_init_error error= SSL_INITERR_NOERROR; + + /* having ssl_acceptor_fd != 0 signals the use of SSL */ + ssl_acceptor_fd= new_VioSSLAcceptorFd(opt_ssl_key, opt_ssl_cert, + opt_ssl_ca, opt_ssl_capath, + opt_ssl_cipher, &error, + opt_ssl_crl, opt_ssl_crlpath, + tls_version); + DBUG_PRINT("info",("ssl_acceptor_fd: %p", ssl_acceptor_fd)); + if (!ssl_acceptor_fd) + { + sql_print_error("Failed to setup SSL"); + sql_print_error("SSL error: %s", sslGetErrString(error)); + if (!opt_bootstrap) + unireg_abort(1); + opt_use_ssl = 0; + have_ssl= SHOW_OPTION_DISABLED; + } + else + ssl_acceptor_stats.init(); + + if (global_system_variables.log_warnings > 0) + { + ulong err; + while ((err= ERR_get_error())) + { + char buf[256]; + ERR_error_string_n(err, buf, sizeof(buf)); + sql_print_warning("SSL error: %s",buf); + } + } + else + ERR_remove_state(0); + } + else + { + have_ssl= SHOW_OPTION_DISABLED; + } + if (des_key_file) + load_des_key_file(des_key_file); +#endif /* HAVE_OPENSSL */ +#endif /* !EMBEDDED_LIBRARY */ +} + +/* Reinitialize SSL (FLUSH SSL) */ +int reinit_ssl() +{ +#if defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY) + if (!opt_use_ssl) + return 0; + + enum enum_ssl_init_error error = SSL_INITERR_NOERROR; + st_VioSSLFd *new_fd = new_VioSSLAcceptorFd(opt_ssl_key, opt_ssl_cert, + opt_ssl_ca, opt_ssl_capath, opt_ssl_cipher, &error, opt_ssl_crl, + opt_ssl_crlpath, tls_version); + + if (!new_fd) + { + my_printf_error(ER_UNKNOWN_ERROR, "Failed to refresh SSL, error: %s", MYF(0), + sslGetErrString(error)); + ERR_clear_error(); + return 1; + } + mysql_rwlock_wrlock(&LOCK_ssl_refresh); + free_vio_ssl_acceptor_fd(ssl_acceptor_fd); + ssl_acceptor_fd= new_fd; + ssl_acceptor_stats.init(); + mysql_rwlock_unlock(&LOCK_ssl_refresh); +#endif + return 0; +} + +static void end_ssl() +{ +#ifdef HAVE_OPENSSL +#ifndef EMBEDDED_LIBRARY + if (ssl_acceptor_fd) + { + free_vio_ssl_acceptor_fd(ssl_acceptor_fd); + ssl_acceptor_fd= 0; + } +#endif /* ! EMBEDDED_LIBRARY */ +#endif /* HAVE_OPENSSL */ +} + +#ifdef _WIN32 +/** + Registers a file to be collected when Windows Error Reporting creates a crash + report. +*/ +#include <werapi.h> +static void add_file_to_crash_report(char *file) +{ + wchar_t wfile[MAX_PATH+1]= {0}; + if (mbstowcs(wfile, file, MAX_PATH) != (size_t)-1) + { + WerRegisterFile(wfile, WerRegFileTypeOther, WER_FILE_ANONYMOUS_DATA); + } +} +#endif + +#define init_default_storage_engine(X,Y) \ + init_default_storage_engine_impl(#X, X, &global_system_variables.Y) + +static int init_default_storage_engine_impl(const char *opt_name, + char *engine_name, plugin_ref *res) +{ + if (!engine_name) + { + *res= 0; + return 0; + } + + LEX_CSTRING name= { engine_name, strlen(engine_name) }; + plugin_ref plugin; + handlerton *hton; + if ((plugin= ha_resolve_by_name(0, &name, false))) + hton= plugin_hton(plugin); + else + { + sql_print_error("Unknown/unsupported storage engine: %s", engine_name); + return 1; + } + if (!ha_storage_engine_is_enabled(hton)) + { + if (!opt_bootstrap) + { + sql_print_error("%s (%s) is not available", opt_name, engine_name); + return 1; + } + DBUG_ASSERT(*res); + } + else + { + /* + Need to unlock as global_system_variables.table_plugin + was acquired during plugin_init() + */ + mysql_mutex_lock(&LOCK_global_system_variables); + if (*res) + plugin_unlock(0, *res); + *res= plugin; + mysql_mutex_unlock(&LOCK_global_system_variables); + } + return 0; +} + +static int +init_gtid_pos_auto_engines(void) +{ + plugin_ref *plugins; + + /* + For the command-line option --gtid_pos_auto_engines, we allow (and ignore) + engines that are unknown. This is convenient, since it allows to set + default auto-create engines that might not be used by particular users. + The option sets a list of storage engines that will have gtid position + table auto-created for them if needed. And if the engine is not available, + then it will certainly not be needed. + */ + if (gtid_pos_auto_engines) + plugins= resolve_engine_list(NULL, gtid_pos_auto_engines, + strlen(gtid_pos_auto_engines), false, false); + else + plugins= resolve_engine_list(NULL, "", 0, false, false); + if (!plugins) + return 1; + mysql_mutex_lock(&LOCK_global_system_variables); + opt_gtid_pos_auto_plugins= plugins; + mysql_mutex_unlock(&LOCK_global_system_variables); + return 0; +} + +#define MYSQL_COMPATIBILITY_OPTION(option) \ + { option, OPT_MYSQL_COMPATIBILITY, \ + 0, 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0 } + +#define MYSQL_TO_BE_IMPLEMENTED_OPTION(option) \ + { option, OPT_MYSQL_TO_BE_IMPLEMENTED, \ + 0, 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0 } + +#define MYSQL_SUGGEST_ANALOG_OPTION(option, str) \ + { option, OPT_MYSQL_COMPATIBILITY, \ + 0, 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0 } + +#define MARIADB_REMOVED_OPTION(option) \ + { option, OPT_REMOVED_OPTION, \ + 0, 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0 } + +static int init_server_components() +{ + DBUG_ENTER("init_server_components"); + /* + We need to call each of these following functions to ensure that + all things are initialized so that unireg_abort() doesn't fail + */ + my_cpu_init(); + mdl_init(); + if (tdc_init() || hostname_cache_init()) + unireg_abort(1); + + query_cache_set_min_res_unit(query_cache_min_res_unit); + query_cache_result_size_limit(query_cache_limit); + /* if we set size of QC non zero in config then probably we want it ON */ + if (query_cache_size != 0 && + global_system_variables.query_cache_type == 0 && + !IS_SYSVAR_AUTOSIZE(&query_cache_size)) + { + global_system_variables.query_cache_type= 1; + } + query_cache_init(); + DBUG_ASSERT(query_cache_size < ULONG_MAX); + query_cache_resize((ulong)query_cache_size); + my_rnd_init(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2); + setup_fpu(); + init_thr_lock(); + backup_init(); + + if (init_thr_timer(thread_scheduler->max_threads + extra_max_connections)) + { + fprintf(stderr, "Can't initialize timers\n"); + unireg_abort(1); + } + + my_uuid_init((ulong) (my_rnd(&sql_rand))*12345,12345); + wt_init(); + + /* Setup logs */ + + setup_log_handling(); + + /* + Enable old-fashioned error log, except when the user has requested + help information. Since the implementation of plugin server + variables the help output is now written much later. + */ +#ifdef _WIN32 + if (opt_console) + opt_error_log= false; +#endif + + if (opt_error_log && !opt_abort) + { + if (!log_error_file_ptr[0]) + { + fn_format(log_error_file, pidfile_name, mysql_data_home, ".err", + MY_REPLACE_EXT); /* replace '.<domain>' by '.err', bug#4997 */ + SYSVAR_AUTOSIZE(log_error_file_ptr, log_error_file); + } + else + { + fn_format(log_error_file, log_error_file_ptr, mysql_data_home, ".err", + MY_UNPACK_FILENAME | MY_SAFE_PATH); + log_error_file_ptr= log_error_file; + } + if (!log_error_file[0]) + opt_error_log= 0; // Too long file name + else + { + my_bool res; +#ifndef EMBEDDED_LIBRARY + res= reopen_fstreams(log_error_file, stdout, stderr); +#else + res= reopen_fstreams(log_error_file, NULL, stderr); +#endif + + if (!res) + setbuf(stderr, NULL); + +#ifdef _WIN32 + /* Add error log to windows crash reporting. */ + add_file_to_crash_report(log_error_file); +#endif + } + } + + /* set up the hook before initializing plugins which may use it */ + error_handler_hook= my_message_sql; + proc_info_hook= set_thd_stage_info; + + /* + Print source revision hash, as one of the first lines, if not the + first in error log, for troubleshooting and debugging purposes + */ + if (!opt_help) + sql_print_information("Starting MariaDB %s source revision %s as process %lu", + server_version, SOURCE_REVISION, (ulong) getpid()); + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + /* + Parsing the performance schema command line option may have reported + warnings/information messages. + Now that the logger is finally available, and redirected + to the proper file when the --log--error option is used, + print the buffered messages to the log. + */ + buffered_logs.print(); + buffered_logs.cleanup(); +#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */ + +#ifndef EMBEDDED_LIBRARY + /* + Now that the logger is available, redirect character set + errors directly to the logger + (instead of the buffered_logs used at the server startup time). + */ + my_charset_error_reporter= charset_error_reporter; +#endif + + xid_cache_init(); + + /* need to configure logging before initializing storage engines */ + if (!opt_bin_log_used && !WSREP_ON) + { + if (opt_log_slave_updates) + sql_print_warning("You need to use --log-bin to make " + "--log-slave-updates work."); + if (binlog_format_used) + sql_print_warning("You need to use --log-bin to make " + "--binlog-format work."); + } + + /* Check that we have not let the format to unspecified at this point */ + DBUG_ASSERT((uint)global_system_variables.binlog_format <= + array_elements(binlog_format_names)-1); + +#ifdef HAVE_REPLICATION + if (opt_log_slave_updates && replicate_same_server_id) + { + if (opt_bin_log) + { + sql_print_error("using --replicate-same-server-id in conjunction with " + "--log-slave-updates is impossible, it would lead to " + "infinite loops in this server."); + unireg_abort(1); + } + else + sql_print_warning("using --replicate-same-server-id in conjunction with " + "--log-slave-updates would lead to infinite loops in " + "this server. However this will be ignored as the " + "--log-bin option is not defined."); + } +#endif + + if (opt_bin_log) + { + /* Reports an error and aborts, if the --log-bin's path + is a directory.*/ + if (opt_bin_logname[0] && + opt_bin_logname[strlen(opt_bin_logname) - 1] == FN_LIBCHAR) + { + sql_print_error("Path '%s' is a directory name, please specify " + "a file name for --log-bin option", opt_bin_logname); + unireg_abort(1); + } + + /* Reports an error and aborts, if the --log-bin-index's path + is a directory.*/ + if (opt_binlog_index_name && + opt_binlog_index_name[strlen(opt_binlog_index_name) - 1] + == FN_LIBCHAR) + { + sql_print_error("Path '%s' is a directory name, please specify " + "a file name for --log-bin-index option", + opt_binlog_index_name); + unireg_abort(1); + } + + char buf[FN_REFLEN]; + const char *ln; + ln= mysql_bin_log.generate_name(opt_bin_logname, "-bin", 1, buf); + if (!opt_bin_logname[0] && !opt_binlog_index_name) + { + /* + User didn't give us info to name the binlog index file. + Picking `hostname`-bin.index like did in 4.x, causes replication to + fail if the hostname is changed later. So, we would like to instead + require a name. But as we don't want to break many existing setups, we + only give warning, not error. + */ + sql_print_warning("No argument was provided to --log-bin and " + "neither --log-basename or --log-bin-index where " + "used; This may cause repliction to break when this " + "server acts as a master and has its hostname " + "changed! Please use '--log-basename=%s' or " + "'--log-bin=%s' to avoid this problem.", + opt_log_basename, ln); + } + if (ln == buf) + opt_bin_logname= my_once_strdup(buf, MYF(MY_WME)); + } + + /* + Since some wsrep threads (THDs) are create before plugins are + initialized, LOCK_plugin mutex needs to be initialized here. + */ + plugin_mutex_init(); + + /* + Wsrep initialization must happen at this point, because: + - opt_bin_logname must be known when starting replication + since SST may need it + - SST may modify binlog index file, so it must be opened + after SST has happened + + We also (unconditionally) initialize wsrep LOCKs and CONDs. + It is because they are used while accessing wsrep system + variables even when a wsrep provider is not loaded. + */ + + /* It's now safe to use thread specific memory */ + mysqld_server_initialized= 1; + +#ifndef EMBEDDED_LIBRARY + wsrep_thr_init(); +#endif + +#ifdef WITH_WSREP + if (wsrep_init_server()) unireg_abort(1); + + if (WSREP_ON && !wsrep_recovery && !opt_abort) + { + if (opt_bootstrap) // bootsrap option given - disable wsrep functionality + { + wsrep_provider_init(WSREP_NONE); + if (wsrep_init()) + unireg_abort(1); + } + else // full wsrep initialization + { + // add basedir/bin to PATH to resolve wsrep script names + size_t tmp_path_size= strlen(mysql_home) + 5; /* including "/bin" */ + char* const tmp_path= (char*)my_alloca(tmp_path_size); + if (tmp_path) + { + snprintf(tmp_path, tmp_path_size, "%s/bin", mysql_home); + wsrep_prepend_PATH(tmp_path); + } + else + { + WSREP_ERROR("Could not append %s/bin to PATH", mysql_home); + } + my_afree(tmp_path); + + if (wsrep_before_SE()) + { + set_ports(); // this is also called in network_init() later but we need + // to know mysqld_port now - lp:1071882 + wsrep_init_startup(true); + } + } + } +#endif /* WITH_WSREP */ + + if (!opt_help && opt_bin_log) + { + if (mysql_bin_log.open_index_file(opt_binlog_index_name, opt_bin_logname, + TRUE)) + { + unireg_abort(1); + } + + log_bin_basename= + rpl_make_log_name(key_memory_MYSQL_BIN_LOG_basename, + opt_bin_logname, pidfile_name, + opt_bin_logname ? "" : "-bin"); + log_bin_index= + rpl_make_log_name(key_memory_MYSQL_BIN_LOG_index, + opt_binlog_index_name, log_bin_basename, ".index"); + if (log_bin_basename == NULL || log_bin_index == NULL) + { + sql_print_error("Unable to create replication path names:" + " out of memory or path names too long" + " (path name exceeds " STRINGIFY_ARG(FN_REFLEN) + " or file name exceeds " STRINGIFY_ARG(FN_LEN) ")."); + unireg_abort(1); + } + } + +#ifndef EMBEDDED_LIBRARY + DBUG_PRINT("debug", + ("opt_bin_logname: %s, opt_relay_logname: %s, pidfile_name: %s", + opt_bin_logname, opt_relay_logname, pidfile_name)); + if (opt_relay_logname) + { + relay_log_basename= + rpl_make_log_name(key_memory_MYSQL_RELAY_LOG_basename, + opt_relay_logname, pidfile_name, + opt_relay_logname ? "" : "-relay-bin"); + relay_log_index= + rpl_make_log_name(key_memory_MYSQL_RELAY_LOG_index, + opt_relaylog_index_name, relay_log_basename, ".index"); + if (relay_log_basename == NULL || relay_log_index == NULL) + { + sql_print_error("Unable to create replication path names:" + " out of memory or path names too long" + " (path name exceeds " STRINGIFY_ARG(FN_REFLEN) + " or file name exceeds " STRINGIFY_ARG(FN_LEN) ")."); + unireg_abort(1); + } + } +#endif /* !EMBEDDED_LIBRARY */ + + /* call ha_init_key_cache() on all key caches to init them */ + process_key_caches(&ha_init_key_cache, 0); + + init_global_table_stats(); + init_global_index_stats(); + init_update_queries(); + + /* Allow storage engine to give real error messages */ + if (unlikely(ha_init_errors())) + DBUG_RETURN(1); + + tc_log= 0; // ha_initialize_handlerton() needs that + + if (!opt_abort && ddl_log_initialize()) + unireg_abort(1); + + if (plugin_init(&remaining_argc, remaining_argv, + (opt_noacl ? PLUGIN_INIT_SKIP_PLUGIN_TABLE : 0) | + (opt_abort ? PLUGIN_INIT_SKIP_INITIALIZATION : 0))) + { + sql_print_error("Failed to initialize plugins."); + unireg_abort(1); + } + plugins_are_initialized= TRUE; /* Don't separate from init function */ + +#ifdef HAVE_REPLICATION + /* + Semisync is not required by other components, which justifies its + initialization at this point when thread specific memory is also available. + */ + if (repl_semisync_master.init_object() || + repl_semisync_slave.init_object()) + { + sql_print_error("Could not initialize semisync."); + unireg_abort(1); + } +#endif + +#ifndef EMBEDDED_LIBRARY + if (session_tracker_init()) + return 1; +#endif //EMBEDDED_LIBRARY + + /* we do want to exit if there are any other unknown options */ + if (remaining_argc > 1) + { + int ho_error; + struct my_option removed_opts[]= + { + /* The following options exist in 5.6 but not in 10.0 */ + MYSQL_COMPATIBILITY_OPTION("log-raw"), + MYSQL_COMPATIBILITY_OPTION("log-bin-use-v1-row-events"), + MYSQL_TO_BE_IMPLEMENTED_OPTION("default-authentication-plugin"), + MYSQL_COMPATIBILITY_OPTION("binlog-max-flush-queue-time"), + MYSQL_COMPATIBILITY_OPTION("master-info-repository"), + MYSQL_COMPATIBILITY_OPTION("relay-log-info-repository"), + MYSQL_SUGGEST_ANALOG_OPTION("binlog-rows-query-log-events", "--binlog-annotate-row-events"), + MYSQL_COMPATIBILITY_OPTION("binlog-order-commits"), + MYSQL_TO_BE_IMPLEMENTED_OPTION("log-throttle-queries-not-using-indexes"), + MYSQL_TO_BE_IMPLEMENTED_OPTION("end-markers-in-json"), + MYSQL_TO_BE_IMPLEMENTED_OPTION("optimizer-trace-features"), // OPTIMIZER_TRACE + MYSQL_TO_BE_IMPLEMENTED_OPTION("optimizer-trace-offset"), // OPTIMIZER_TRACE + MYSQL_TO_BE_IMPLEMENTED_OPTION("optimizer-trace-limit"), // OPTIMIZER_TRACE + MYSQL_COMPATIBILITY_OPTION("server-id-bits"), + MYSQL_TO_BE_IMPLEMENTED_OPTION("slave-rows-search-algorithms"), // HAVE_REPLICATION + MYSQL_TO_BE_IMPLEMENTED_OPTION("slave-allow-batching"), // HAVE_REPLICATION + MYSQL_COMPATIBILITY_OPTION("slave-checkpoint-period"), // HAVE_REPLICATION + MYSQL_COMPATIBILITY_OPTION("slave-checkpoint-group"), // HAVE_REPLICATION + MYSQL_SUGGEST_ANALOG_OPTION("slave-pending-jobs-size-max", "--slave-parallel-max-queued"), // HAVE_REPLICATION + MYSQL_TO_BE_IMPLEMENTED_OPTION("sha256-password-private-key-path"), // HAVE_OPENSSL + MYSQL_TO_BE_IMPLEMENTED_OPTION("sha256-password-public-key-path"), // HAVE_OPENSSL + + /* The following options exist in 5.5 and 5.6 but not in 10.0 */ + MYSQL_SUGGEST_ANALOG_OPTION("abort-slave-event-count", "--debug-abort-slave-event-count"), + MYSQL_SUGGEST_ANALOG_OPTION("disconnect-slave-event-count", "--debug-disconnect-slave-event-count"), + MYSQL_SUGGEST_ANALOG_OPTION("exit-info", "--debug-exit-info"), + MYSQL_SUGGEST_ANALOG_OPTION("max-binlog-dump-events", "--debug-max-binlog-dump-events"), + MYSQL_SUGGEST_ANALOG_OPTION("sporadic-binlog-dump-fail", "--debug-sporadic-binlog-dump-fail"), + MYSQL_COMPATIBILITY_OPTION("new"), + MYSQL_COMPATIBILITY_OPTION("show_compatibility_56"), + + /* The following options were removed in 10.6 */ + MARIADB_REMOVED_OPTION("innodb-force-load-corrupted"), + + /* The following options were removed in 10.5 */ +#if defined(__linux__) + MARIADB_REMOVED_OPTION("super-large-pages"), +#endif + MARIADB_REMOVED_OPTION("innodb-idle-flush-pct"), + MARIADB_REMOVED_OPTION("innodb-locks-unsafe-for-binlog"), + MARIADB_REMOVED_OPTION("innodb-rollback-segments"), + MARIADB_REMOVED_OPTION("innodb-stats-sample-pages"), + MARIADB_REMOVED_OPTION("max-long-data-size"), + MARIADB_REMOVED_OPTION("multi-range-count"), + MARIADB_REMOVED_OPTION("skip-bdb"), + MARIADB_REMOVED_OPTION("thread-concurrency"), + MARIADB_REMOVED_OPTION("timed-mutexes"), + + /* The following options were added after 5.6.10 */ + MYSQL_TO_BE_IMPLEMENTED_OPTION("rpl-stop-slave-timeout"), + MYSQL_TO_BE_IMPLEMENTED_OPTION("validate-user-plugins"), // NO_EMBEDDED_ACCESS_CHECKS + + /* The following options were deprecated in 10.5 or earlier */ + MARIADB_REMOVED_OPTION("innodb-adaptive-max-sleep-delay"), + MARIADB_REMOVED_OPTION("innodb-background-scrub-data-check-interval"), + MARIADB_REMOVED_OPTION("innodb-background-scrub-data-compressed"), + MARIADB_REMOVED_OPTION("innodb-background-scrub-data-interval"), + MARIADB_REMOVED_OPTION("innodb-background-scrub-data-uncompressed"), + MARIADB_REMOVED_OPTION("innodb-buffer-pool-instances"), + MARIADB_REMOVED_OPTION("innodb-commit-concurrency"), + MARIADB_REMOVED_OPTION("innodb-concurrency-tickets"), + MARIADB_REMOVED_OPTION("innodb-file-format"), + MARIADB_REMOVED_OPTION("innodb-large-prefix"), + MARIADB_REMOVED_OPTION("innodb-lock-schedule-algorithm"), + MARIADB_REMOVED_OPTION("innodb-log-checksums"), + MARIADB_REMOVED_OPTION("innodb-log-compressed-pages"), + MARIADB_REMOVED_OPTION("innodb-log-files-in-group"), + MARIADB_REMOVED_OPTION("innodb-log-optimize-ddl"), + MARIADB_REMOVED_OPTION("innodb-log-write-ahead-size"), + MARIADB_REMOVED_OPTION("innodb-page-cleaners"), + MARIADB_REMOVED_OPTION("innodb-replication-delay"), + MARIADB_REMOVED_OPTION("innodb-scrub-log"), + MARIADB_REMOVED_OPTION("innodb-scrub-log-speed"), + MARIADB_REMOVED_OPTION("innodb-sync-array-size"), + MARIADB_REMOVED_OPTION("innodb-thread-concurrency"), + MARIADB_REMOVED_OPTION("innodb-thread-sleep-delay"), + MARIADB_REMOVED_OPTION("innodb-undo-logs"), + {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0} + }; + /* + We need to eat any 'loose' arguments first before we conclude + that there are unprocessed options. + */ + my_getopt_skip_unknown= 0; +#ifdef WITH_WSREP + if (wsrep_recovery) + my_getopt_skip_unknown= TRUE; +#endif + + if ((ho_error= handle_options(&remaining_argc, &remaining_argv, removed_opts, + mysqld_get_one_option))) + unireg_abort(ho_error); + /* Add back the program name handle_options removes */ + remaining_argc++; + remaining_argv--; + my_getopt_skip_unknown= TRUE; + +#ifdef WITH_WSREP + if (!wsrep_recovery) + { +#endif + if (remaining_argc > 1) + { + fprintf(stderr, "%s: Too many arguments (first extra is '%s').\n", + my_progname, remaining_argv[1]); + unireg_abort(1); + } +#ifdef WITH_WSREP + } +#endif + } + + if (opt_abort) + unireg_abort(0); + + if (init_io_cache_encryption()) + unireg_abort(1); + + /* if the errmsg.sys is not loaded, terminate to maintain behaviour */ + if (!DEFAULT_ERRMSGS[0][0]) + unireg_abort(1); + + /* We have to initialize the storage engines before CSV logging */ + if (ha_init()) + { + sql_print_error("Can't init databases"); + unireg_abort(1); + } + + if (opt_bootstrap) + log_output_options= LOG_FILE; + else + logger.init_log_tables(); + + if (log_output_options & LOG_NONE) + { + /* + Issue a warning if there were specified additional options to the + log-output along with NONE. Probably this wasn't what user wanted. + */ + if ((log_output_options & LOG_NONE) && (log_output_options & ~LOG_NONE)) + sql_print_warning("There were other values specified to " + "log-output besides NONE. Disabling slow " + "and general logs anyway."); + logger.set_handlers(LOG_NONE, LOG_NONE); + } + else + { + /* fall back to the log files if tables are not present */ + LEX_CSTRING csv_name={STRING_WITH_LEN("csv")}; + if (!plugin_is_ready(&csv_name, MYSQL_STORAGE_ENGINE_PLUGIN)) + { + /* purecov: begin inspected */ + sql_print_error("CSV engine is not present, falling back to the " + "log files"); + SYSVAR_AUTOSIZE(log_output_options, + (log_output_options & ~LOG_TABLE) | LOG_FILE); + /* purecov: end */ + } + + logger.set_handlers(global_system_variables.sql_log_slow ? + log_output_options:LOG_NONE, + opt_log ? log_output_options:LOG_NONE); + } + + if (init_default_storage_engine(default_storage_engine, table_plugin)) + unireg_abort(1); + + if (default_tmp_storage_engine && !*default_tmp_storage_engine) + default_tmp_storage_engine= NULL; + + if (enforced_storage_engine && !*enforced_storage_engine) + enforced_storage_engine= NULL; + + if (init_default_storage_engine(default_tmp_storage_engine, tmp_table_plugin)) + unireg_abort(1); + + if (init_default_storage_engine(enforced_storage_engine, enforced_table_plugin)) + unireg_abort(1); + + if (init_gtid_pos_auto_engines()) + unireg_abort(1); + +#ifdef USE_ARIA_FOR_TMP_TABLES + if (!ha_storage_engine_is_enabled(maria_hton) && !opt_bootstrap) + { + sql_print_error("Aria engine is not enabled or did not start. The Aria engine must be enabled to continue as server was configured with --with-aria-tmp-tables"); + unireg_abort(1); + } +#endif + +#ifdef WITH_WSREP + /* + Now is the right time to initialize members of wsrep startup threads + that rely on plugins and other related global system variables to be + initialized. This initialization was not possible before, as plugins + (and thus some global system variables) are initialized after wsrep + startup threads are created. + Note: This only needs to be done for rsync and mariabackup based SST + methods. + */ + if (wsrep_before_SE()) + wsrep_plugins_post_init(); + + if (WSREP_ON && !opt_bin_log) + { + wsrep_emulate_bin_log= 1; + } +#endif + + tc_log= get_tc_log_implementation(); + + if (tc_log->open(opt_bin_log ? opt_bin_logname : opt_tc_log_file)) + { + sql_print_error("Can't init tc log"); + unireg_abort(1); + } + + if (ha_recover(0)) + unireg_abort(1); + +#ifndef EMBEDDED_LIBRARY + start_handle_manager(); +#endif + if (opt_bin_log) + { + int error; + mysql_mutex_t *log_lock= mysql_bin_log.get_log_lock(); + mysql_mutex_lock(log_lock); + error= mysql_bin_log.open(opt_bin_logname, 0, 0, + WRITE_CACHE, max_binlog_size, 0, TRUE); + mysql_mutex_unlock(log_lock); + if (unlikely(error)) + unireg_abort(1); + } + +#ifdef HAVE_REPLICATION + if (opt_bin_log) + { + if (binlog_expire_logs_seconds) + { + time_t purge_time= server_start_time - binlog_expire_logs_seconds; + if (purge_time >= 0) + mysql_bin_log.purge_logs_before_date(purge_time); + } + } + else + { + if (binlog_expire_logs_seconds) + sql_print_warning("You need to use --log-bin to make --expire-logs-days " + "or --binlog-expire-logs-seconds work."); + } +#endif + + if (ddl_log_execute_recovery() > 0) + unireg_abort(1); + ha_signal_ddl_recovery_done(); + + if (opt_myisam_log) + (void) mi_log(1); + +#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY) + if (locked_in_memory) + { + int error; + if (user_info) + { + DBUG_ASSERT(!getuid()); + if (setreuid((uid_t) -1, 0) == -1) + { + sql_perror("setreuid"); + unireg_abort(1); + } + error= mlockall(MCL_CURRENT); + set_user(mysqld_user, user_info); + } + else + error= mlockall(MCL_CURRENT); + + if (unlikely(error)) + { + if (global_system_variables.log_warnings) + sql_print_warning("Failed to lock memory. Errno: %d\n",errno); + locked_in_memory= 0; + } + } +#else + locked_in_memory= 0; +#endif + + ft_init_stopwords(); + + init_max_user_conn(); + init_global_user_stats(); + init_global_client_stats(); + if (!opt_bootstrap) + servers_init(0); + init_status_vars(); + Item_false= new (&read_only_root) Item_bool_static("FALSE", 0); + Item_true= new (&read_only_root) Item_bool_static("TRUE", 1); + DBUG_ASSERT(Item_false); + + DBUG_RETURN(0); +} + + +#ifndef EMBEDDED_LIBRARY + +#ifndef DBUG_OFF +/* + Debugging helper function to keep the locale database + (see sql_locale.cc) and max_month_name_length and + max_day_name_length variable values in consistent state. +*/ +static void test_lc_time_sz() +{ + DBUG_ENTER("test_lc_time_sz"); + for (MY_LOCALE **loc= my_locales; *loc; loc++) + { + size_t max_month_len= 0; + size_t max_day_len= 0; + for (const char **month= (*loc)->month_names->type_names; *month; month++) + { + set_if_bigger(max_month_len, + my_numchars_mb(&my_charset_utf8mb3_general_ci, + *month, *month + strlen(*month))); + } + for (const char **day= (*loc)->day_names->type_names; *day; day++) + { + set_if_bigger(max_day_len, + my_numchars_mb(&my_charset_utf8mb3_general_ci, + *day, *day + strlen(*day))); + } + if ((*loc)->max_month_name_length != max_month_len || + (*loc)->max_day_name_length != max_day_len) + { + DBUG_PRINT("Wrong max day name(or month name) length for locale:", + ("%s", (*loc)->name)); + DBUG_ASSERT(0); + } + } + DBUG_VOID_RETURN; +} +#endif//DBUG_OFF + + +int mysqld_main(int argc, char **argv) +{ +#ifndef _WIN32 + /* We can't close stdin just now, because it may be booststrap mode. */ + bool please_close_stdin= fcntl(STDIN_FILENO, F_GETFD) >= 0; +#endif + + /* + Perform basic thread library and malloc initialization, + to be able to read defaults files and parse options. + */ + my_progname= argv[0]; + sf_leaking_memory= 1; // no safemalloc memory leak reports if we exit early + mysqld_server_started= mysqld_server_initialized= 0; + + if (init_early_variables()) + exit(1); + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + pre_initialize_performance_schema(); +#endif /*WITH_PERFSCHEMA_STORAGE_ENGINE */ + + if (my_init()) // init my_sys library & pthreads + { + fprintf(stderr, "my_init() failed."); + return 1; + } + + orig_argc= argc; + orig_argv= argv; + my_defaults_mark_files= TRUE; + load_defaults_or_exit(MYSQL_CONFIG_NAME, load_default_groups, &argc, &argv); + defaults_argc= argc; + defaults_argv= argv; + remaining_argc= argc; + remaining_argv= argv; + + /* Must be initialized early for comparison of options name */ + system_charset_info= &my_charset_utf8mb3_general_ci; + + sys_var_init(); + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + /* + Initialize the array of performance schema instrument configurations. + */ + init_pfs_instrument_array(); + + /* + Logs generated while parsing the command line + options are buffered and printed later. + */ + buffered_logs.init(); + my_getopt_error_reporter= buffered_option_error_reporter; + my_charset_error_reporter= buffered_option_error_reporter; + + pfs_param.m_pfs_instrument= const_cast<char*>(""); +#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */ + my_timer_init(&sys_timer_info); + + int ho_error __attribute__((unused))= handle_early_options(); + + /* fix tdc_size */ + if (IS_SYSVAR_AUTOSIZE(&tdc_size)) + { + SYSVAR_AUTOSIZE(tdc_size, MY_MIN(400 + tdc_size / 2, 2000)); + } + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + if (ho_error == 0) + { + if (pfs_param.m_enabled && !opt_help && !opt_bootstrap) + { + /* Add sizing hints from the server sizing parameters. */ + pfs_param.m_hints.m_table_definition_cache= tdc_size; + pfs_param.m_hints.m_table_open_cache= tc_size; + pfs_param.m_hints.m_max_connections= max_connections; + pfs_param.m_hints.m_open_files_limit= open_files_limit; + PSI_hook= initialize_performance_schema(&pfs_param); + if (PSI_hook == NULL) + { + pfs_param.m_enabled= false; + buffered_logs.buffer(WARNING_LEVEL, + "Performance schema disabled (reason: init failed)."); + } + } + } +#else + /* + Other provider of the instrumentation interface should + initialize PSI_hook here: + - HAVE_PSI_INTERFACE is for the instrumentation interface + - WITH_PERFSCHEMA_STORAGE_ENGINE is for one implementation + of the interface, + but there could be alternate implementations, which is why + these two defines are kept separate. + */ +#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */ + +#ifdef HAVE_PSI_INTERFACE + /* + Obtain the current performance schema instrumentation interface, + if available. + */ + if (PSI_hook) + { + PSI *psi_server= (PSI*) PSI_hook->get_interface(PSI_CURRENT_VERSION); + if (likely(psi_server != NULL)) + { + set_psi_server(psi_server); + + /* + Now that we have parsed the command line arguments, and have + initialized the performance schema itself, the next step is to + register all the server instruments. + */ + init_server_psi_keys(); + /* Instrument the main thread */ + PSI_thread *psi= PSI_CALL_new_thread(key_thread_main, NULL, 0); + PSI_CALL_set_thread_os_id(psi); + PSI_CALL_set_thread(psi); + + /* + Now that some instrumentation is in place, + recreate objects which were initialised early, + so that they are instrumented as well. + */ + my_thread_global_reinit(); + } + } +#endif /* HAVE_PSI_INTERFACE */ + + mysql_mutex_init(key_LOCK_error_log, &LOCK_error_log, MY_MUTEX_INIT_FAST); + + /* Initialize audit interface globals. Audit plugins are inited later. */ + mysql_audit_initialize(); + + /* + Perform basic logger initialization logger. Should be called after + MY_INIT, as it initializes mutexes. Log tables are inited later. + */ + logger.init_base(); + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + if (ho_error) + { + /* + Parsing command line option failed, + Since we don't have a workable remaining_argc/remaining_argv + to continue the server initialization, this is as far as this + code can go. + This is the best effort to log meaningful messages: + - messages will be printed to stderr, which is not redirected yet, + - messages will be printed in the NT event log, for windows. + */ + buffered_logs.print(); + buffered_logs.cleanup(); + /* + Not enough initializations for unireg_abort() + Using exit() for windows. + */ + exit (ho_error); + } +#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */ + +#ifdef _CUSTOMSTARTUPCONFIG_ + if (_cust_check_startup()) + { + / * _cust_check_startup will report startup failure error * / + exit(1); + } +#endif + + if (init_common_variables()) + unireg_abort(1); // Will do exit + + init_signals(); + + ulonglong new_thread_stack_size; + new_thread_stack_size= my_setstacksize(&connection_attrib, + (size_t)my_thread_stack_size); + if (new_thread_stack_size != my_thread_stack_size) + { + if ((new_thread_stack_size < my_thread_stack_size) && + global_system_variables.log_warnings) + sql_print_warning("Asked for %llu thread stack, but got %llu", + my_thread_stack_size, new_thread_stack_size); + SYSVAR_AUTOSIZE(my_thread_stack_size, new_thread_stack_size); + } + + (void) thr_setconcurrency(concurrency); // 10 by default + + select_thread=pthread_self(); + select_thread_in_use=1; + +#ifdef HAVE_LIBWRAP + libwrapName= my_progname+dirname_length(my_progname); + openlog(libwrapName, LOG_PID, LOG_AUTH); +#endif + +#ifndef DBUG_OFF + test_lc_time_sz(); + srand((uint) time(NULL)); +#endif + + /* + We have enough space for fiddling with the argv, continue + */ + check_data_home(mysql_real_data_home); + if (my_setwd(mysql_real_data_home, opt_abort ? 0 : MYF(MY_WME)) && !opt_abort) + unireg_abort(1); /* purecov: inspected */ + + /* Atomic write initialization must be done as root */ + my_init_atomic_write(); + + if ((user_info= check_user(mysqld_user))) + { +#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) + if (locked_in_memory) // getuid() == 0 here + set_effective_user(user_info); + else +#endif + set_user(mysqld_user, user_info); + } + +#ifdef WITH_WSREP + wsrep_set_wsrep_on(nullptr); + if (WSREP_ON && wsrep_check_opts()) unireg_abort(1); +#endif + +#ifdef _WIN32 + /* + The subsequent calls may take a long time : e.g. innodb log read. + Thus set the long running service control manager timeout + */ + my_report_svc_status(SERVICE_START_PENDING, NO_ERROR, slow_start_timeout); +#endif + + if (init_server_components()) + unireg_abort(1); + + init_ssl(); + network_init(); + +#ifdef WITH_WSREP + // Recover and exit. + if (wsrep_recovery) + { + select_thread_in_use= 0; + if (WSREP_ON) + wsrep_recover(); + else + sql_print_information("WSREP: disabled, skipping position recovery"); + unireg_abort(0); + } +#endif + + /* + init signals & alarm + After this we can't quit by a simple unireg_abort + */ + start_signal_handler(); // Creates pidfile + + if (mysql_rm_tmp_tables() || acl_init(opt_noacl) || + my_tz_init((THD *)0, default_tz_name, opt_bootstrap)) + unireg_abort(1); + + if (!opt_noacl) + (void) grant_init(); + + udf_init(); + + if (opt_bootstrap) /* If running with bootstrap, do not start replication. */ + opt_skip_slave_start= 1; + + binlog_unsafe_map_init(); + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + initialize_performance_schema_acl(opt_bootstrap); +#endif + + initialize_information_schema_acl(); + + /* + Change EVENTS_ORIGINAL to EVENTS_OFF (the default value) as there is no + point in using ORIGINAL during startup + */ + if (Events::opt_event_scheduler == Events::EVENTS_ORIGINAL) + Events::opt_event_scheduler= Events::EVENTS_OFF; + + Events::set_original_state(Events::opt_event_scheduler); + if (Events::init((THD*) 0, opt_noacl || opt_bootstrap)) + unireg_abort(1); + +#ifdef WITH_WSREP + if (WSREP_ON) + { + if (opt_bootstrap) + { + /*! bootstrap wsrep init was taken care of above */ + } + else + { + wsrep_init_globals(); + if (!wsrep_before_SE()) + { + wsrep_init_startup(false); + } + wsrep_new_cluster= false; + if (wsrep_cluster_address_exists()) + { + WSREP_DEBUG("Startup creating %ld applier threads running %lu", + wsrep_slave_threads - 1, wsrep_running_applier_threads); + wsrep_create_appliers(wsrep_slave_threads - 1); + } + } + } +#endif /* WITH_WSREP */ + + /* Protect read_only_root against writes */ + protect_root(&read_only_root, PROT_READ); + + if (opt_bootstrap) + { + select_thread_in_use= 0; // Allow 'kill' to work + int bootstrap_error= bootstrap(mysql_stdin); + if (!abort_loop) + unireg_abort(bootstrap_error); + else + { + sleep(2); // Wait for kill + exit(0); + } + } + + /* Copy default global rpl_filter to global_rpl_filter */ + copy_filter_setting(global_rpl_filter, get_or_create_rpl_filter("", 0)); + + /* + init_slave() must be called after the thread keys are created. + Some parts of the code (e.g. SHOW STATUS LIKE 'slave_running' and other + places) assume that active_mi != 0, so let's fail if it's 0 (out of + memory); a message has already been printed. + */ + if (init_slave() && !active_mi) + { + unireg_abort(1); + } + + if (opt_init_file && *opt_init_file) + { + if (read_init_file(opt_init_file)) + unireg_abort(1); + } + + disable_log_notes= 0; /* Startup done, now we can give notes again */ + + if (IS_SYSVAR_AUTOSIZE(&server_version_ptr)) + sql_print_information(ER_DEFAULT(ER_STARTUP), my_progname, server_version, + (systemd_sock_activation ? "Systemd socket activated ports" : + (unix_sock_is_online ? mysqld_unix_port : (char*) "")), + mysqld_port, MYSQL_COMPILATION_COMMENT); + else + { + char real_server_version[2 * SERVER_VERSION_LENGTH + 10]; + + set_server_version(real_server_version, sizeof(real_server_version)); + safe_strcat(real_server_version, sizeof(real_server_version), "' as '"); + safe_strcat(real_server_version, sizeof(real_server_version), + server_version); + + sql_print_information(ER_DEFAULT(ER_STARTUP), my_progname, + real_server_version, + (systemd_sock_activation ? "Systemd socket activated ports" : + (unix_sock_is_online ? mysqld_unix_port : (char*) "")), + mysqld_port, MYSQL_COMPILATION_COMMENT); + } + +#ifndef _WIN32 + // try to keep fd=0 busy + if (please_close_stdin && !freopen("/dev/null", "r", stdin)) + { + // fall back on failure + fclose(stdin); + } +#endif + + + /* Signal threads waiting for server to be started */ + mysql_mutex_lock(&LOCK_server_started); + mysqld_server_started= 1; + mysql_cond_broadcast(&COND_server_started); + mysql_mutex_unlock(&LOCK_server_started); + + (void)MYSQL_SET_STAGE(0 ,__FILE__, __LINE__); + + /* Memory used when everything is setup */ + start_memory_used= global_status_var.global_memory_used; + +#ifdef _WIN32 + handle_connections_win(); +#else + handle_connections_sockets(); + + mysql_mutex_lock(&LOCK_start_thread); + select_thread_in_use=0; + mysql_cond_broadcast(&COND_start_thread); + mysql_mutex_unlock(&LOCK_start_thread); +#endif /* _WIN32 */ + + /* Shutdown requested */ + char *user= shutdown_user.load(std::memory_order_relaxed); + sql_print_information(ER_DEFAULT(ER_NORMAL_SHUTDOWN), my_progname, + user ? user : "unknown"); + if (user) + my_free(user); + +#ifdef WITH_WSREP + /* Stop wsrep threads in case they are running. */ + if (wsrep_running_threads > 0) + { + wsrep_shutdown_replication(); + } + /* Release threads if they are waiting in WSREP_SYNC_WAIT_UPTO_GTID */ + wsrep_gtid_server.signal_waiters(0, true); +#endif + + close_connections(); + ha_pre_shutdown(); + clean_up(1); + sd_notify(0, "STATUS=MariaDB server is down"); + + /* (void) pthread_attr_destroy(&connection_attrib); */ + + DBUG_PRINT("quit",("Exiting main thread")); + + /* + Disable the main thread instrumentation, + to avoid recording events during the shutdown. + */ + PSI_CALL_delete_current_thread(); + +#if (defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY)) + ERR_remove_state(0); +#endif + mysqld_exit(0); + return 0; +} + +#endif /* !EMBEDDED_LIBRARY */ + + +static bool read_init_file(char *file_name) +{ + MYSQL_FILE *file; + DBUG_ENTER("read_init_file"); + DBUG_PRINT("enter",("name: %s",file_name)); + if (!(file= mysql_file_fopen(key_file_init, file_name, + O_RDONLY, MYF(MY_WME)))) + DBUG_RETURN(TRUE); + bootstrap(file); + mysql_file_fclose(file, MYF(MY_WME)); + DBUG_RETURN(FALSE); +} + + +/** + Increment number of created threads +*/ +void inc_thread_created(void) +{ + statistic_increment(thread_created, &LOCK_status); +} + +#ifndef EMBEDDED_LIBRARY + +/* + Simple scheduler that use the main thread to handle the request + + NOTES + This is only used for debugging, when starting mysqld with + --thread-handling=no-threads or --one-thread +*/ + +void handle_connection_in_main_thread(CONNECT *connect) +{ + do_handle_one_connection(connect, false); +} + + +/* + Scheduler that uses one thread per connection +*/ + +void create_thread_to_handle_connection(CONNECT *connect) +{ + DBUG_ENTER("create_thread_to_handle_connection"); + + if (thread_cache.enqueue(connect)) + DBUG_VOID_RETURN; + + /* Create new thread to handle connection */ + inc_thread_created(); + DBUG_PRINT("info",(("creating thread %lu"), (ulong) connect->thread_id)); + connect->prior_thr_create_utime= microsecond_interval_timer(); + + pthread_t tmp; + if (auto error= mysql_thread_create(key_thread_one_connection, + &tmp, &connection_attrib, + handle_one_connection, (void*) connect)) + { + char error_message_buff[MYSQL_ERRMSG_SIZE]; + /* purecov: begin inspected */ + DBUG_PRINT("error", ("Can't create thread to handle request (error %d)", + error)); + my_snprintf(error_message_buff, sizeof(error_message_buff), + ER_DEFAULT(ER_CANT_CREATE_THREAD), error); + connect->close_with_error(ER_CANT_CREATE_THREAD, error_message_buff, + ER_OUT_OF_RESOURCES); + DBUG_VOID_RETURN; + /* purecov: end */ + } + DBUG_PRINT("info",("Thread created")); + DBUG_VOID_RETURN; +} + + +/** + Create new thread to handle incoming connection. + + This function will create new thread to handle the incoming + connection. If there are idle cached threads one will be used. + 'thd' will be pushed into 'threads'. + + In single-threaded mode (\#define ONE_THREAD) connection will be + handled inside this function. + + @param[in,out] thd Thread handle of future thread. +*/ + +void create_new_thread(CONNECT *connect) +{ + DBUG_ENTER("create_new_thread"); + + /* + Don't allow too many connections. We roughly check here that we allow + only (max_connections + 1) connections. + */ + if ((*connect->scheduler->connection_count)++ >= + *connect->scheduler->max_connections + 1) + { + DBUG_PRINT("error",("Too many connections")); + connect->close_with_error(0, NullS, ER_CON_COUNT_ERROR); + DBUG_VOID_RETURN; + } + + uint sum= connection_count + extra_connection_count; + if (sum > max_used_connections) + max_used_connections= sum; + + /* + The initialization of thread_id is done in create_embedded_thd() for + the embedded library. + TODO: refactor this to avoid code duplication there + */ + connect->thread_id= next_thread_id(); + connect->scheduler->add_connection(connect); + + DBUG_VOID_RETURN; +} +#endif /* EMBEDDED_LIBRARY */ + + + /* Handle new connections and spawn new process to handle them */ + +#ifndef EMBEDDED_LIBRARY + +void handle_accepted_socket(MYSQL_SOCKET new_sock, MYSQL_SOCKET sock) +{ +#ifdef HAVE_LIBWRAP + { + if (!sock.is_unix_domain_socket) + { + struct request_info req; + signal(SIGCHLD, SIG_DFL); + request_init(&req, RQ_DAEMON, libwrapName, RQ_FILE, + mysql_socket_getfd(new_sock), NULL); + my_fromhost(&req); + if (!my_hosts_access(&req)) + { + /* + This may be stupid but refuse() includes an exit(0) + which we surely don't want... + clean_exit() - same stupid thing ... + */ + syslog(deny_severity, "refused connect from %s", + my_eval_client(&req)); + + /* + C++ sucks (the gibberish in front just translates the supplied + sink function pointer in the req structure from a void (*sink)(); + to a void(*sink)(int) if you omit the cast, the C++ compiler + will cry... + */ + if (req.sink) + ((void(*)(int))req.sink)(req.fd); + + (void)mysql_socket_shutdown(new_sock, SHUT_RDWR); + (void)mysql_socket_close(new_sock); + /* + The connection was refused by TCP wrappers. + There are no details (by client IP) available to update the + host_cache. + */ + statistic_increment(connection_errors_tcpwrap, &LOCK_status); + return; + } + } + } +#endif /* HAVE_LIBWRAP */ + + DBUG_PRINT("info", ("Creating CONNECT for new connection")); + + if (auto connect= new CONNECT(new_sock, + sock.is_unix_domain_socket ? + VIO_TYPE_SOCKET : VIO_TYPE_TCPIP, + sock.is_extra_port ? + extra_thread_scheduler : thread_scheduler)) + create_new_thread(connect); + else + { + /* Connect failure */ + (void)mysql_socket_close(new_sock); + statistic_increment(aborted_connects, &LOCK_status); + statistic_increment(connection_errors_internal, &LOCK_status); + } +} + +#ifndef _WIN32 +static void set_non_blocking_if_supported(MYSQL_SOCKET sock) +{ +#if !defined(NO_FCNTL_NONBLOCK) + if (!(test_flags & TEST_BLOCKING)) + { + int flags= fcntl(mysql_socket_getfd(sock), F_GETFL, 0); +#if defined(O_NONBLOCK) + fcntl(mysql_socket_getfd(sock), F_SETFL, flags | O_NONBLOCK); +#elif defined(O_NDELAY) + fcntl(mysql_socket_getfd(sock), F_SETFL, flags | O_NDELAY); +#endif + } +#endif +} + + +void handle_connections_sockets() +{ + MYSQL_SOCKET sock= mysql_socket_invalid(); + uint error_count=0; + struct sockaddr_storage cAddr; + int retval; +#ifdef HAVE_POLL + // for ip_sock, unix_sock and extra_ip_sock + Dynamic_array<struct pollfd> fds(PSI_INSTRUMENT_MEM); +#else + fd_set readFDs,clientFDs; +#endif + + DBUG_ENTER("handle_connections_sockets"); + +#ifdef HAVE_POLL + for (size_t i= 0; i < listen_sockets.size(); i++) + { + struct pollfd local_fds; + mysql_socket_set_thread_owner(listen_sockets.at(i)); + local_fds.fd= mysql_socket_getfd(listen_sockets.at(i)); + local_fds.events= POLLIN; + fds.push(local_fds); + set_non_blocking_if_supported(listen_sockets.at(i)); + } +#else + FD_ZERO(&clientFDs); + for (size_t i= 0; i < listen_sockets.size(); i++) + { + int fd= mysql_socket_getfd(listen_sockets.at(i)); + FD_SET(fd, &clientFDs); + set_non_blocking_if_supported(listen_sockets.at(i)); + } +#endif + + sd_notify(0, "READY=1\n" + "STATUS=Taking your SQL requests now...\n"); + + DBUG_PRINT("general",("Waiting for connections.")); + while (!abort_loop) + { +#ifdef HAVE_POLL + retval= poll(fds.get_pos(0), fds.size(), -1); +#else + readFDs=clientFDs; + retval= select(FD_SETSIZE, &readFDs, NULL, NULL, NULL); +#endif + + if (retval < 0) + { + if (socket_errno != SOCKET_EINTR) + { + /* + select(2)/poll(2) failed on the listening port. + There is not much details to report about the client, + increment the server global status variable. + */ + statistic_increment(connection_errors_accept, &LOCK_status); + if (!select_errors++ && !abort_loop) /* purecov: inspected */ + sql_print_error("Server: Got error %d from select",socket_errno); /* purecov: inspected */ + } + continue; + } + + if (abort_loop) + break; + + /* Is this a new connection request ? */ +#ifdef HAVE_POLL + for (size_t i= 0; i < fds.size(); ++i) + { + if (fds.at(i).revents & POLLIN) + { + sock= listen_sockets.at(i); + break; + } + } +#else // HAVE_POLL + for (size_t i=0; i < listen_sockets.size(); i++) + { + if (FD_ISSET(mysql_socket_getfd(listen_sockets.at(i)), &readFDs)) + { + sock= listen_sockets.at(i); + break; + } + } +#endif // HAVE_POLL + + for (uint retry=0; retry < MAX_ACCEPT_RETRY && !abort_loop; retry++) + { + size_socket length= sizeof(struct sockaddr_storage); + MYSQL_SOCKET new_sock; + + new_sock= mysql_socket_accept(key_socket_client_connection, sock, + (struct sockaddr *)(&cAddr), + &length); + if (mysql_socket_getfd(new_sock) != INVALID_SOCKET) + handle_accepted_socket(new_sock, sock); + else if (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN) + { + /* + accept(2) failed on the listening port. + There is not much details to report about the client, + increment the server global status variable. + */ + statistic_increment(connection_errors_accept, &LOCK_status); + if ((error_count++ & 255) == 0) // This can happen often + sql_perror("Error in accept"); + if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE) + sleep(1); // Give other threads some time + break; + } + } + } + sd_notify(0, "STOPPING=1\n" + "STATUS=Shutdown in progress\n"); + DBUG_VOID_RETURN; +} + +#endif /* _WIN32*/ +#endif /* EMBEDDED_LIBRARY */ + + +/**************************************************************************** + Handle start options +******************************************************************************/ + + +/** + Process command line options flagged as 'early'. + Some components needs to be initialized as early as possible, + because the rest of the server initialization depends on them. + Options that needs to be parsed early includes: + - the performance schema, when compiled in, + - options related to the help, + - options related to the bootstrap + The performance schema needs to be initialized as early as possible, + before to-be-instrumented objects of the server are initialized. +*/ + +int handle_early_options() +{ + int ho_error; + DYNAMIC_ARRAY all_early_options; + + /* Skip unknown options so that they may be processed later */ + my_getopt_skip_unknown= TRUE; + + /* prepare all_early_options array */ + my_init_dynamic_array(PSI_NOT_INSTRUMENTED, &all_early_options, + sizeof(my_option), 100, 25, MYF(0)); + add_many_options(&all_early_options, pfs_early_options, + array_elements(pfs_early_options)); + sys_var_add_options(&all_early_options, sys_var::PARSE_EARLY); + add_terminator(&all_early_options); + + ho_error= handle_options(&remaining_argc, &remaining_argv, + (my_option*)(all_early_options.buffer), + mysqld_get_one_option); + if (ho_error == 0) + { + /* Add back the program name handle_options removes */ + remaining_argc++; + remaining_argv--; + } + + delete_dynamic(&all_early_options); + + return ho_error; +} + +/** + System variables are automatically command-line options (few + exceptions are documented in sys_var.h), so don't need + to be listed here. +*/ + +struct my_option my_long_options[]= +{ + {"help", '?', "Display this help and exit.", + &opt_help, &opt_help, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, + 0, 0}, + {"ansi", 'a', "Use ANSI SQL syntax instead of MySQL syntax. This mode " + "will also set transaction isolation level 'serializable'.", 0, 0, 0, + GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, + /* + Because Sys_var_bit does not support command-line options, we need to + explicitly add one for --autocommit + */ + {"autocommit", 0, "Set default value for autocommit (0 or 1)", + &opt_autocommit, &opt_autocommit, 0, + GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, NULL}, + {"binlog-do-db", OPT_BINLOG_DO_DB, + "Tells the master it should log updates for the specified database, " + "and exclude all others not explicitly mentioned.", + 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"binlog-ignore-db", OPT_BINLOG_IGNORE_DB, + "Tells the master that updates to the given database should not be logged to the binary log.", + 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"binlog-row-event-max-size", 0, + "The maximum size of a row-based binary log event in bytes. Rows will be " + "grouped into events smaller than this size if possible. " + "The value has to be a multiple of 256.", + &opt_binlog_rows_event_max_size, &opt_binlog_rows_event_max_size, + 0, GET_ULONG, REQUIRED_ARG, + /* def_value */ 8192, /* min_value */ 256, /* max_value */ UINT_MAX32-1, + /* sub_size */ 0, /* block_size */ 256, + /* app_type */ 0 + }, +#ifndef DISABLE_GRANT_OPTIONS + {"bootstrap", OPT_BOOTSTRAP, "Used by mysql installation scripts.", 0, 0, 0, + GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, +#endif + {"character-set-client-handshake", 0, + "Don't ignore client side character set value sent during handshake.", + &opt_character_set_client_handshake, + &opt_character_set_client_handshake, + 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, + {"character-set-filesystem", 0, + "Set the filesystem character set.", + &character_set_filesystem_name, + &character_set_filesystem_name, + 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, + {"character-set-server", 'C', "Set the default character set.", + &default_character_set_name, &default_character_set_name, + 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, + {"chroot", 'r', "Chroot mysqld daemon during startup.", + &mysqld_chroot, &mysqld_chroot, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0}, + {"collation-server", 0, "Set the default collation.", + &default_collation_name, &default_collation_name, + 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, + {"console", OPT_CONSOLE, "Write error output on screen; don't remove the console window on windows.", + &opt_console, &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0, + 0, 0, 0}, +#ifdef DBUG_OFF + {"debug", '#', "Built in DBUG debugger. Disabled in this build.", + ¤t_dbug_option, ¤t_dbug_option, 0, GET_STR, OPT_ARG, + 0, 0, 0, 0, 0, 0}, +#endif +#ifdef HAVE_REPLICATION + {"debug-abort-slave-event-count", 0, + "Option used by mysql-test for debugging and testing of replication.", + &abort_slave_event_count, &abort_slave_event_count, + 0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, +#endif /* HAVE_REPLICATION */ +#ifndef DBUG_OFF + {"debug-assert", 0, + "Allow DBUG_ASSERT() to invoke assert()", + &my_assert, &my_assert, + 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0}, + {"debug-assert-on-error", 0, + "Do an assert in various functions if we get a fatal error", + &my_assert_on_error, &my_assert_on_error, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"debug-assert-if-crashed-table", 0, + "Do an assert in handler::print_error() if we get a crashed table", + &debug_assert_if_crashed_table, &debug_assert_if_crashed_table, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, +#endif +#ifdef HAVE_REPLICATION + {"debug-disconnect-slave-event-count", 0, + "Option used by mysql-test for debugging and testing of replication.", + &disconnect_slave_event_count, &disconnect_slave_event_count, + 0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, +#endif /* HAVE_REPLICATION */ + {"debug-exit-info", 'T', "Used for debugging. Use at your own risk.", + 0, 0, 0, GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0}, + {"debug-gdb", 0, + "Set up signals usable for debugging.", + &opt_debugging, &opt_debugging, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, +#ifdef HAVE_REPLICATION + {"debug-max-binlog-dump-events", 0, + "Option used by mysql-test for debugging and testing of replication.", + &max_binlog_dump_events, &max_binlog_dump_events, 0, + GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, +#endif /* HAVE_REPLICATION */ + {"debug-no-sync", 0, + "Disables system sync calls. Only for running tests or debugging!", + &my_disable_sync, &my_disable_sync, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, +#ifdef HAVE_REPLICATION + {"debug-sporadic-binlog-dump-fail", 0, + "Option used by mysql-test for debugging and testing of replication.", + &opt_sporadic_binlog_dump_fail, + &opt_sporadic_binlog_dump_fail, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, + 0}, +#endif /* HAVE_REPLICATION */ +#ifndef DBUG_OFF + {"debug-assert-on-not-freed-memory", 0, + "Assert if we found problems with memory allocation", + &debug_assert_on_not_freed_memory, + &debug_assert_on_not_freed_memory, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, + 0}, +#endif /* DBUG_OFF */ + /* default-storage-engine should have "MyISAM" as def_value. Instead + of initializing it here it is done in init_common_variables() due + to a compiler bug in Sun Studio compiler. */ + {"default-storage-engine", 0, "The default storage engine for new tables", + &default_storage_engine, 0, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0 }, + {"default-tmp-storage-engine", 0, + "The default storage engine for user-created temporary tables", + &default_tmp_storage_engine, 0, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0 }, + {"default-time-zone", 0, "Set the default time zone.", + &default_tz_name, &default_tz_name, + 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, +#if defined(ENABLED_DEBUG_SYNC) + {"debug-sync-timeout", OPT_DEBUG_SYNC_TIMEOUT, + "Enable the debug sync facility " + "and optionally specify a default wait timeout in seconds. " + "A zero value keeps the facility disabled.", + &opt_debug_sync_timeout, 0, + 0, GET_UINT, OPT_ARG, 0, 0, UINT_MAX, 0, 0, 0}, +#endif /* defined(ENABLED_DEBUG_SYNC) */ +#ifdef HAVE_OPENSSL + {"des-key-file", 0, + "Load keys for des_encrypt() and des_encrypt from given file.", + &des_key_file, &des_key_file, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0}, +#endif /* HAVE_OPENSSL */ +#ifdef HAVE_STACKTRACE + {"stack-trace", 0 , "Print a symbolic stack trace on failure", + &opt_stack_trace, &opt_stack_trace, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, +#endif /* HAVE_STACKTRACE */ + {"enforce-storage-engine", 0, "Force the use of a storage engine for new tables", + &enforced_storage_engine, 0, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0 }, + {"external-locking", 0, "Use system (external) locking (disabled by " + "default). With this option enabled you can run myisamchk to test " + "(not repair) tables while the MySQL server is running. Disable with " + "--skip-external-locking.", &opt_external_locking, &opt_external_locking, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + /* We must always support the next option to make scripts like mysqltest + easier to do */ + {"flashback", 0, + "Setup the server to use flashback. This enables binary log in row mode and will enable extra logging for DDL's needed by flashback feature", + &opt_support_flashback, &opt_support_flashback, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"gdb", 0, + "Set up signals usable for debugging. Deprecated, use --debug-gdb instead.", + &opt_debugging, &opt_debugging, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"gtid-pos-auto-engines", 0, + "List of engines for which to automatically create a " + "mysql.gtid_slave_pos_ENGINE table, if a transaction using that engine " + "is replicated. This can be used to avoid introducing cross-engine " + "transactions, if engines are used different from that used by table " + "mysql.gtid_slave_pos", + >id_pos_auto_engines, 0, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0 }, +#ifdef HAVE_SOLARIS_LARGE_PAGES + {"super-large-pages", 0, "Enable support for super large pages.", + &opt_super_large_pages, &opt_super_large_pages, 0, + GET_BOOL, OPT_ARG, 0, 0, 1, 0, 1, 0}, +#endif + {"language", 'L', + "Client error messages in given language. May be given as a full path. " + "Deprecated. Use --lc-messages-dir instead.", + 0, 0, 0, + GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"lc-messages", 0, + "Set the language used for the error messages.", + &lc_messages, &lc_messages, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0 }, + {"lc-time-names", 0, + "Set the language used for the month names and the days of the week.", + &lc_time_names_name, &lc_time_names_name, + 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }, + {"log-basename", OPT_LOG_BASENAME, + "Basename for all log files and the .pid file. This sets all log file " + "names at once (in 'datadir') and is normally the only option you need " + "for specifying log files. Sets names for --log-bin, --log-bin-index, " + "--relay-log, --relay-log-index, --general-log-file, " + "--log-slow-query-file, --log-error-file, and --pid-file", + &opt_log_basename, &opt_log_basename, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0}, + {"log-bin", OPT_BIN_LOG, + "Log update queries in binary format. Optional argument should be name for " + "binary log. If not given " + "'datadir'/'log-basename'-bin or 'datadir'/mysql-bin will be used (the later if " + "--log-basename is not specified). We strongly recommend to use either " + "--log-basename or specify a filename to ensure that replication doesn't " + "stop if the real hostname of the computer changes.", + &opt_bin_logname, &opt_bin_logname, 0, GET_STR, + OPT_ARG, 0, 0, 0, 0, 0, 0}, + {"log-bin-index", 0, + "File that holds the names for last binary log files.", + &opt_binlog_index_name, &opt_binlog_index_name, 0, GET_STR, + REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"relay-log-index", 0, + "The location and name to use for the file that keeps a list of the last " + "relay logs", + &opt_relaylog_index_name, &opt_relaylog_index_name, 0, GET_STR, + REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"log-ddl-recovery", 0, + "Path to file used for recovery of DDL statements after a crash", + &opt_ddl_recovery_file, &opt_ddl_recovery_file, 0, GET_STR, + REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.", + &myisam_log_filename, &myisam_log_filename, 0, GET_STR, + OPT_ARG, 0, 0, 0, 0, 0, 0}, + {"log-short-format", 0, + "Don't log extra information to update and slow-query logs.", + &opt_short_log_format, &opt_short_log_format, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"log-tc", 0, + "Path to transaction coordinator log (used for transactions that affect " + "more than one storage engine, when binary log is disabled).", + &opt_tc_log_file, &opt_tc_log_file, 0, GET_STR, + REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"master-info-file", 0, + "The location and name of the file that remembers the master and where " + "the I/O replication thread is in the master's binlogs. Defaults to " + "master.info", + &master_info_file, &master_info_file, 0, GET_STR, + REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"master-retry-count", 0, + "The number of tries the slave will make to connect to the master before giving up.", + &master_retry_count, &master_retry_count, 0, GET_ULONG, + REQUIRED_ARG, 100000, 0, 0, 0, 0, 0}, +#ifdef HAVE_REPLICATION + {"init-rpl-role", 0, "Set the replication role", + &rpl_status, &rpl_status, &rpl_role_typelib, + GET_ENUM, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, +#endif /* HAVE_REPLICATION */ + {"memlock", 0, "Lock mysqld in memory.", &locked_in_memory, + &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"old-style-user-limits", 0, + "Enable old-style user limits (before 5.0.3, user resources were counted " + "per each user+host vs. per account).", + &opt_old_style_user_limits, &opt_old_style_user_limits, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"port-open-timeout", 0, + "Maximum time in seconds to wait for the port to become free. " + "(Default: No wait).", &mysqld_port_timeout, &mysqld_port_timeout, 0, + GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"replicate-do-db", OPT_REPLICATE_DO_DB, + "Tells the slave thread to restrict replication to the specified database. " + "To specify more than one database, use the directive multiple times, " + "once for each database. Note that this will only work if you do not use " + "cross-database queries such as UPDATE some_db.some_table SET foo='bar' " + "while having selected a different or no database. If you need cross " + "database updates to work, make sure you have 3.23.28 or later, and use " + "replicate-wild-do-table=db_name.%.", + 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"replicate-do-table", OPT_REPLICATE_DO_TABLE, + "Tells the slave thread to restrict replication to the specified table. " + "To specify more than one table, use the directive multiple times, once " + "for each table. This will work for cross-database updates, in contrast " + "to replicate-do-db.", 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"replicate-ignore-db", OPT_REPLICATE_IGNORE_DB, + "Tells the slave thread to not replicate to the specified database. To " + "specify more than one database to ignore, use the directive multiple " + "times, once for each database. This option will not work if you use " + "cross database updates. If you need cross database updates to work, " + "make sure you have 3.23.28 or later, and use replicate-wild-ignore-" + "table=db_name.%. ", 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"replicate-ignore-table", OPT_REPLICATE_IGNORE_TABLE, + "Tells the slave thread to not replicate to the specified table. To specify " + "more than one table to ignore, use the directive multiple times, once for " + "each table. This will work for cross-database updates, in contrast to " + "replicate-ignore-db.", 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"replicate-rewrite-db", OPT_REPLICATE_REWRITE_DB, + "Updates to a database with a different name than the original. Example: " + "replicate-rewrite-db=master_db_name->slave_db_name.", + 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, +#ifdef HAVE_REPLICATION + {"replicate-same-server-id", 0, + "In replication, if set to 1, do not skip events having our server id. " + "Default value is 0 (to break infinite loops in circular replication). " + "Can't be set to 1 if --log-slave-updates is used.", + &replicate_same_server_id, &replicate_same_server_id, + 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, +#endif + {"replicate-wild-do-table", OPT_REPLICATE_WILD_DO_TABLE, + "Tells the slave thread to restrict replication to the tables that match " + "the specified wildcard pattern. To specify more than one table, use the " + "directive multiple times, once for each table. This will work for cross-" + "database updates. Example: replicate-wild-do-table=foo%.bar% will " + "replicate only updates to tables in all databases that start with foo " + "and whose table names start with bar.", + 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"replicate-wild-ignore-table", OPT_REPLICATE_WILD_IGNORE_TABLE, + "Tells the slave thread to not replicate to the tables that match the " + "given wildcard pattern. To specify more than one table to ignore, use " + "the directive multiple times, once for each table. This will work for " + "cross-database updates. Example: replicate-wild-ignore-table=foo%.bar% " + "will not do updates to tables in databases that start with foo and whose " + "table names start with bar.", + 0, 0, 0, GET_STR | GET_ASK_ADDR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"safe-mode", OPT_SAFE, "Skip some optimize stages (for testing). Deprecated.", + 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"safe-user-create", 0, + "Don't allow new user creation by the user who has no write privileges to the mysql.user table.", + &opt_safe_user_create, &opt_safe_user_create, 0, GET_BOOL, + NO_ARG, 0, 0, 0, 0, 0, 0}, + {"show-slave-auth-info", 0, + "Show user and password in SHOW SLAVE HOSTS on this master.", + &opt_show_slave_auth_info, &opt_show_slave_auth_info, 0, + GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"silent-startup", OPT_SILENT, "Don't print [Note] to the error log during startup.", + &opt_silent_startup, &opt_silent_startup, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"skip-host-cache", OPT_SKIP_HOST_CACHE, "Don't cache host names.", 0, 0, 0, + GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"skip-slave-start", 0, + "If set, slave is not autostarted.", &opt_skip_slave_start, + &opt_skip_slave_start, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, +#ifdef HAVE_REPLICATION + {"slave-parallel-mode", OPT_SLAVE_PARALLEL_MODE, + "Controls what transactions are applied in parallel when using " + "--slave-parallel-threads. Possible values: \"optimistic\" tries to " + "apply most transactional DML in parallel, and handles any conflicts " + "with rollback and retry. \"conservative\" limits parallelism in an " + "effort to avoid any conflicts. \"aggressive\" tries to maximise the " + "parallelism, possibly at the cost of increased conflict rate. " + "\"minimal\" only parallelizes the commit steps of transactions. " + "\"none\" disables parallel apply completely.", + &opt_slave_parallel_mode, &opt_slave_parallel_mode, + &slave_parallel_mode_typelib, GET_ENUM | GET_ASK_ADDR, REQUIRED_ARG, + SLAVE_PARALLEL_CONSERVATIVE, 0, 0, 0, 0, 0}, +#endif +#if defined(_WIN32) && !defined(EMBEDDED_LIBRARY) + {"slow-start-timeout", 0, + "Maximum number of milliseconds that the service control manager should wait " + "before trying to kill the windows service during startup" + "(Default: 15000).", &slow_start_timeout, &slow_start_timeout, 0, + GET_ULONG, REQUIRED_ARG, 15000, 0, 0, 0, 0, 0}, +#endif +#ifdef HAVE_OPENSSL + {"ssl", 0, + "Enable SSL for connection (automatically enabled if an ssl option is used).", + &opt_use_ssl, &opt_use_ssl, 0, GET_BOOL, OPT_ARG, 0, 0, 0, + 0, 0, 0}, +#endif +#ifdef _WIN32 + {"standalone", 0, + "Dummy option to start as a standalone program (NT).", 0, 0, 0, GET_NO_ARG, + NO_ARG, 0, 0, 0, 0, 0, 0}, +#endif + {"symbolic-links", 's', "Enable symbolic link support.", + &my_use_symdir, &my_use_symdir, 0, GET_BOOL, NO_ARG, + /* + The system call realpath() produces warnings under valgrind and + purify. These are not suppressed: instead we disable symlinks + option if compiled with valgrind support. + Also disable by default on Windows, due to high overhead for checking .sym + files. + */ + IF_WIN(0,1), 0, 0, 0, 0, 0}, + {"sysdate-is-now", 0, + "Non-default option to alias SYSDATE() to NOW() to make it safe-replicable. " + "Since 5.0, SYSDATE() returns a `dynamic' value different for different " + "invocations, even within the same statement.", + &global_system_variables.sysdate_is_now, + 0, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0}, + {"tc-heuristic-recover", 0, + "Decision to use in heuristic recover process", + &tc_heuristic_recover, &tc_heuristic_recover, + &tc_heuristic_recover_typelib, GET_ENUM, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"temp-pool", 0, +#if (ENABLE_TEMP_POOL) + "Using this option will cause most temporary files created to use a small " + "set of names, rather than a unique name for each new file. Deprecated.", +#else + "This option is ignored on this OS.", +#endif + &use_temp_pool, &use_temp_pool, 0, GET_BOOL, NO_ARG, 0, + 0, 0, 0, 0, 0}, + {"transaction-isolation", 0, + "Default transaction isolation level", + &global_system_variables.tx_isolation, + &global_system_variables.tx_isolation, &tx_isolation_typelib, + GET_ENUM, REQUIRED_ARG, ISO_REPEATABLE_READ, 0, 0, 0, 0, 0}, + {"transaction-read-only", 0, + "Default transaction access mode. " + "True if transactions are read-only.", + &global_system_variables.tx_read_only, + &global_system_variables.tx_read_only, 0, + GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0}, + {"user", 'u', "Run mysqld daemon as user.", 0, 0, 0, GET_STR, REQUIRED_ARG, + 0, 0, 0, 0, 0, 0}, + {"verbose", 'v', "Used with --help option for detailed help.", + &opt_verbose, &opt_verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"version", 'V', "Output version information and exit.", 0, 0, 0, GET_STR, + OPT_ARG, 0, 0, 0, 0, 0, 0}, + {"plugin-load", OPT_PLUGIN_LOAD, + "Semicolon-separated list of plugins to load, where each plugin is " + "specified as ether a plugin_name=library_file pair or only a library_file. " + "If the latter case, all plugins from a given library_file will be loaded.", + 0, 0, 0, + GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"plugin-load-add", OPT_PLUGIN_LOAD_ADD, + "Optional semicolon-separated list of plugins to load. This option adds " + "to the list specified by --plugin-load in an incremental way. " + "It can be specified many times, adding more plugins every time.", + 0, 0, 0, + GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"table_cache", 0, "Deprecated; use --table-open-cache instead.", + &tc_size, &tc_size, 0, GET_ULONG, + REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0}, +#ifdef WITH_WSREP + {"wsrep-new-cluster", 0, "Bootstrap a cluster. It works by overriding the " + "current value of wsrep_cluster_address. It is recommended not to add this " + "option to the config file as this will trigger bootstrap on every server " + "start.", &wsrep_new_cluster, &wsrep_new_cluster, 0, GET_BOOL, NO_ARG, + 0, 0, 0, 0, 0, 0}, +#endif +}; + +static int show_queries(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONGLONG; + var->value= &thd->query_id; + return 0; +} + + +static int show_net_compression(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_MY_BOOL; + var->value= &thd->net.compress; + return 0; +} + +static int show_starttime(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + *((long *)buff)= (long) (thd->query_start() - server_start_time); + return 0; +} + +#ifdef ENABLED_PROFILING +static int show_flushstatustime(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + *((long *)buff)= (long) (thd->query_start() - flush_status_time); + return 0; +} +#endif + +#ifdef HAVE_REPLICATION +static int show_rpl_status(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_CHAR; + var->value= const_cast<char*>(rpl_status_type[(int)rpl_status]); + return 0; +} + +static int show_slave_running(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + Master_info *mi= NULL; + bool UNINIT_VAR(tmp); + + var->type= SHOW_MY_BOOL; + var->value= buff; + + if ((mi= get_master_info(&thd->variables.default_master_connection, + Sql_condition::WARN_LEVEL_NOTE))) + { + tmp= (my_bool) (mi->slave_running == MYSQL_SLAVE_RUN_READING && + mi->rli.slave_running != MYSQL_SLAVE_NOT_RUN); + mi->release(); + } + if (mi) + *((my_bool *)buff)= tmp; + else + var->type= SHOW_UNDEF; + return 0; +} + + +/* How many masters this slave is connected to */ + + +static int show_slaves_running(THD *thd, SHOW_VAR *var, char *buff) +{ + var->type= SHOW_LONGLONG; + var->value= buff; + + *((longlong *)buff)= any_slave_sql_running(false); + + return 0; +} + + +static int show_slave_received_heartbeats(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + Master_info *mi; + + var->type= SHOW_LONGLONG; + var->value= buff; + + if ((mi= get_master_info(&thd->variables.default_master_connection, + Sql_condition::WARN_LEVEL_NOTE))) + { + *((longlong *)buff)= mi->received_heartbeats; + mi->release(); + } + else + var->type= SHOW_UNDEF; + return 0; +} + + +static int show_heartbeat_period(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + Master_info *mi; + + var->type= SHOW_CHAR; + var->value= buff; + + if ((mi= get_master_info(&thd->variables.default_master_connection, + Sql_condition::WARN_LEVEL_NOTE))) + { + sprintf(buff, "%.3f", mi->heartbeat_period); + mi->release(); + } + else + var->type= SHOW_UNDEF; + return 0; +} + + +#endif /* HAVE_REPLICATION */ + +static int show_open_tables(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + *((long *) buff)= (long) tc_records(); + return 0; +} + +static int show_prepared_stmt_count(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + mysql_mutex_lock(&LOCK_prepared_stmt_count); + *((long *)buff)= (long)prepared_stmt_count; + mysql_mutex_unlock(&LOCK_prepared_stmt_count); + return 0; +} + +static int show_table_definitions(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + *((long *) buff)= (long) tdc_records(); + return 0; +} + + +#if defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY) + +/* + Functions relying on SSL + Note: In the show_ssl_* functions, we need to check if we have a + valid vio-object since this isn't always true, specifically + when session_status or global_status is requested from + inside an Event. + */ + +static int show_ssl_get_version(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_CHAR; + if( thd->vio_ok() && thd->net.vio->ssl_arg ) + var->value= const_cast<char*>(SSL_get_version((SSL*) thd->net.vio->ssl_arg)); + else + var->value= const_cast<char*>(""); + return 0; +} + +static int show_ssl_get_default_timeout(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + if( thd->vio_ok() && thd->net.vio->ssl_arg ) + *((long *)buff)= (long)SSL_get_default_timeout((SSL*)thd->net.vio->ssl_arg); + else + *((long *)buff)= 0; + return 0; +} + +static int show_ssl_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; +#ifndef HAVE_WOLFSSL + if( thd->net.vio && thd->net.vio->ssl_arg ) + *((long *)buff)= (long)SSL_get_verify_mode((SSL*)thd->net.vio->ssl_arg); + else + *((long *)buff)= 0; +#else + *((long *)buff)= 0; +#endif + return 0; +} + +static int show_ssl_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + if( thd->vio_ok() && thd->net.vio->ssl_arg ) + *((long *)buff)= (long)SSL_get_verify_depth((SSL*)thd->net.vio->ssl_arg); + else + *((long *)buff)= 0; + + return 0; +} + +static int show_ssl_get_cipher(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_CHAR; + if( thd->vio_ok() && thd->net.vio->ssl_arg ) + var->value= const_cast<char*>(SSL_get_cipher((SSL*) thd->net.vio->ssl_arg)); + else + var->value= const_cast<char*>(""); + return 0; +} + +static int show_ssl_get_cipher_list(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_CHAR; + var->value= buff; + if (thd->vio_ok() && thd->net.vio->ssl_arg) + { + int i; + const char *p; + char *end= buff + SHOW_VAR_FUNC_BUFF_SIZE; + for (i=0; (p= SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i)) && + buff < end; i++) + { + buff= strnmov(buff, p, end-buff-1); + *buff++= ':'; + } + if (i) + buff--; + } + *buff=0; + return 0; +} + +#define SHOW_FNAME(name) \ + rpl_semi_sync_master_show_##name + +#define DEF_SHOW_FUNC(name, show_type) \ + static int SHOW_FNAME(name)(MYSQL_THD thd, SHOW_VAR *var, void *buff, \ + system_status_var *status_var, \ + enum_var_type var_type) \ + { \ + repl_semisync_master.set_export_stats(); \ + var->type= show_type; \ + var->value= (char *)&rpl_semi_sync_master_##name; \ + return 0; \ + } + +DEF_SHOW_FUNC(status, SHOW_BOOL) +DEF_SHOW_FUNC(clients, SHOW_LONG) +DEF_SHOW_FUNC(wait_sessions, SHOW_LONG) +DEF_SHOW_FUNC(trx_wait_time, SHOW_LONGLONG) +DEF_SHOW_FUNC(trx_wait_num, SHOW_LONGLONG) +DEF_SHOW_FUNC(net_wait_time, SHOW_LONGLONG) +DEF_SHOW_FUNC(net_wait_num, SHOW_LONGLONG) +DEF_SHOW_FUNC(avg_net_wait_time, SHOW_LONG) +DEF_SHOW_FUNC(avg_trx_wait_time, SHOW_LONG) + + +static char * +my_asn1_time_to_string(const ASN1_TIME *time, char *buf, size_t len) +{ + int n_read; + char *res= NULL; + BIO *bio= BIO_new(BIO_s_mem()); + + if (bio == NULL) + return NULL; + + if (!ASN1_TIME_print(bio, const_cast<ASN1_TIME*>(time))) + goto end; + + n_read= BIO_read(bio, buf, (int) (len - 1)); + + if (n_read > 0) + { + buf[n_read]= 0; + res= buf; + } + +end: + BIO_free(bio); + return res; +} + + +/** + Handler function for the 'ssl_get_server_not_before' variable + + @param thd the mysql thread structure + @param var the data for the variable + @param[out] buf the string to put the value of the variable into + + @return status + @retval 0 success +*/ + +static int +show_ssl_get_server_not_before(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_CHAR; + if(thd->vio_ok() && thd->net.vio->ssl_arg) + { + SSL *ssl= (SSL*) thd->net.vio->ssl_arg; + X509 *cert= SSL_get_certificate(ssl); + const ASN1_TIME *not_before= X509_get0_notBefore(cert); + + var->value= my_asn1_time_to_string(not_before, buff, + SHOW_VAR_FUNC_BUFF_SIZE); + if (!var->value) + return 1; + var->value= buff; + } + else + var->value= empty_c_string; + return 0; +} + + +/** + Handler function for the 'ssl_get_server_not_after' variable + + @param thd the mysql thread structure + @param var the data for the variable + @param[out] buf the string to put the value of the variable into + + @return status + @retval 0 success +*/ + +static int +show_ssl_get_server_not_after(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_CHAR; + if(thd->vio_ok() && thd->net.vio->ssl_arg) + { + SSL *ssl= (SSL*) thd->net.vio->ssl_arg; + X509 *cert= SSL_get_certificate(ssl); + const ASN1_TIME *not_after= X509_get0_notAfter(cert); + + var->value= my_asn1_time_to_string(not_after, buff, + SHOW_VAR_FUNC_BUFF_SIZE); + if (!var->value) + return 1; + } + else + var->value= empty_c_string; + return 0; +} + +#endif /* HAVE_OPENSSL && !EMBEDDED_LIBRARY */ + +static int show_default_keycache(THD *thd, SHOW_VAR *var, void *buff, + system_status_var *, enum_var_type) +{ + struct st_data { + KEY_CACHE_STATISTICS stats; + SHOW_VAR var[9]; + } *data; + SHOW_VAR *v; + + data=(st_data *)buff; + v= data->var; + + var->type= SHOW_ARRAY; + var->value= v; + + get_key_cache_statistics(dflt_key_cache, 0, &data->stats); + +#define set_one_keycache_var(X,Y) \ + v->name= X; \ + v->type= SHOW_LONGLONG; \ + v->value= &data->stats.Y; \ + v++; + + set_one_keycache_var("blocks_not_flushed", blocks_changed); + set_one_keycache_var("blocks_unused", blocks_unused); + set_one_keycache_var("blocks_used", blocks_used); + set_one_keycache_var("blocks_warm", blocks_warm); + set_one_keycache_var("read_requests", read_requests); + set_one_keycache_var("reads", reads); + set_one_keycache_var("write_requests", write_requests); + set_one_keycache_var("writes", writes); + + v->name= 0; + + DBUG_ASSERT((char*)(v+1) <= static_cast<char*>(buff) + SHOW_VAR_FUNC_BUFF_SIZE); + +#undef set_one_keycache_var + + return 0; +} + + +static int show_memory_used(THD *thd, SHOW_VAR *var, char *buff, + struct system_status_var *status_var, + enum enum_var_type scope) +{ + var->type= SHOW_LONGLONG; + var->value= buff; + if (scope == OPT_GLOBAL) + { + calc_sum_of_all_status_if_needed(status_var); + *(longlong*) buff= (status_var->global_memory_used + + status_var->local_memory_used); + } + else + *(longlong*) buff= status_var->local_memory_used; + return 0; +} + + +#ifndef DBUG_OFF +static int debug_status_func(THD *thd, SHOW_VAR *var, void *buff, + system_status_var *, enum_var_type) +{ +#define add_var(X,Y,Z) \ + v->name= X; \ + v->value= (char*)Y; \ + v->type= Z; \ + v++; + + var->type= SHOW_ARRAY; + var->value= buff; + + SHOW_VAR *v= (SHOW_VAR *)buff; + + if (_db_keyword_(0, "role_merge_stats", 1)) + { + static SHOW_VAR roles[]= { + {"global", &role_global_merges, SHOW_ULONG}, + {"db", &role_db_merges, SHOW_ULONG}, + {"table", &role_table_merges, SHOW_ULONG}, + {"column", &role_column_merges, SHOW_ULONG}, + {"routine", &role_routine_merges, SHOW_ULONG}, + {NullS, NullS, SHOW_LONG} + }; + + add_var("role_merges", roles, SHOW_ARRAY); + } + + v->name= 0; + +#undef add_var + + return 0; +} +#endif + +#ifdef HAVE_POOL_OF_THREADS +static int show_threadpool_idle_threads(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_INT; + var->value= buff; + *(int *)buff= tp_get_idle_thread_count(); + return 0; +} + + +static int show_threadpool_threads(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_INT; + var->value= buff; + *(reinterpret_cast<int*>(buff))= tp_get_thread_count(); + return 0; +} +#endif + + +static int show_cached_thread_count(THD *thd, SHOW_VAR *var, char *buff, + enum enum_var_type scope) +{ + var->type= SHOW_LONG; + var->value= buff; + *(reinterpret_cast<ulong*>(buff))= thread_cache.size(); + return 0; +} + + +/* + Variables shown by SHOW STATUS in alphabetical order +*/ + +SHOW_VAR status_vars[]= { + {"Aborted_clients", (char*) &aborted_threads, SHOW_LONG}, + {"Aborted_connects", (char*) &aborted_connects, SHOW_LONG}, + {"Aborted_connects_preauth", (char*) &aborted_connects_preauth, SHOW_LONG}, + {"Acl", (char*) acl_statistics, SHOW_ARRAY}, + {"Access_denied_errors", (char*) offsetof(STATUS_VAR, access_denied_errors), SHOW_LONG_STATUS}, + {"Binlog_bytes_written", (char*) offsetof(STATUS_VAR, binlog_bytes_written), SHOW_LONGLONG_STATUS}, + {"Binlog_cache_disk_use", (char*) &binlog_cache_disk_use, SHOW_LONG}, + {"Binlog_cache_use", (char*) &binlog_cache_use, SHOW_LONG}, + {"Binlog_stmt_cache_disk_use",(char*) &binlog_stmt_cache_disk_use, SHOW_LONG}, + {"Binlog_stmt_cache_use", (char*) &binlog_stmt_cache_use, SHOW_LONG}, + {"Busy_time", (char*) offsetof(STATUS_VAR, busy_time), SHOW_DOUBLE_STATUS}, + {"Bytes_received", (char*) offsetof(STATUS_VAR, bytes_received), SHOW_LONGLONG_STATUS}, + {"Bytes_sent", (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONGLONG_STATUS}, + {"Column_compressions", (char*) offsetof(STATUS_VAR, column_compressions), SHOW_LONG_STATUS}, + {"Column_decompressions", (char*) offsetof(STATUS_VAR, column_decompressions), SHOW_LONG_STATUS}, + {"Com", (char*) com_status_vars, SHOW_ARRAY}, + {"Compression", (char*) &show_net_compression, SHOW_SIMPLE_FUNC}, + {"Connections", (char*) &global_thread_id, SHOW_LONG_NOFLUSH}, + {"Connection_errors_accept", (char*) &connection_errors_accept, SHOW_LONG}, + {"Connection_errors_internal", (char*) &connection_errors_internal, SHOW_LONG}, + {"Connection_errors_max_connections", (char*) &connection_errors_max_connection, SHOW_LONG}, + {"Connection_errors_peer_address", (char*) &connection_errors_peer_addr, SHOW_LONG}, + {"Connection_errors_select", (char*) &connection_errors_select, SHOW_LONG}, + {"Connection_errors_tcpwrap", (char*) &connection_errors_tcpwrap, SHOW_LONG}, + {"Cpu_time", (char*) offsetof(STATUS_VAR, cpu_time), SHOW_DOUBLE_STATUS}, + {"Created_tmp_disk_tables", (char*) offsetof(STATUS_VAR, created_tmp_disk_tables_), SHOW_LONG_STATUS}, + {"Created_tmp_files", (char*) &my_tmp_file_created, SHOW_LONG}, + {"Created_tmp_tables", (char*) offsetof(STATUS_VAR, created_tmp_tables_), SHOW_LONG_STATUS}, +#ifndef DBUG_OFF + SHOW_FUNC_ENTRY("Debug", &debug_status_func), +#endif + {"Delayed_errors", (char*) &delayed_insert_errors, SHOW_LONG}, + {"Delayed_insert_threads", (char*) &delayed_insert_threads, SHOW_LONG_NOFLUSH}, + {"Delayed_writes", (char*) &delayed_insert_writes, SHOW_LONG}, + {"Delete_scan", (char*) offsetof(STATUS_VAR, delete_scan_count), SHOW_LONG_STATUS}, + {"Empty_queries", (char*) offsetof(STATUS_VAR, empty_queries), SHOW_LONG_STATUS}, + {"Executed_events", (char*) &executed_events, SHOW_LONG_NOFLUSH }, + {"Executed_triggers", (char*) offsetof(STATUS_VAR, executed_triggers), SHOW_LONG_STATUS}, + {"Feature_check_constraint", (char*) &feature_check_constraint, SHOW_LONG }, + {"Feature_custom_aggregate_functions", (char*) offsetof(STATUS_VAR, feature_custom_aggregate_functions), SHOW_LONG_STATUS}, + {"Feature_delay_key_write", (char*) &feature_files_opened_with_delayed_keys, SHOW_LONG }, + {"Feature_dynamic_columns", (char*) offsetof(STATUS_VAR, feature_dynamic_columns), SHOW_LONG_STATUS}, + {"Feature_fulltext", (char*) offsetof(STATUS_VAR, feature_fulltext), SHOW_LONG_STATUS}, + {"Feature_gis", (char*) offsetof(STATUS_VAR, feature_gis), SHOW_LONG_STATUS}, + {"Feature_insert_returning", (char*)offsetof(STATUS_VAR, feature_insert_returning), SHOW_LONG_STATUS}, + {"Feature_invisible_columns", (char*) offsetof(STATUS_VAR, feature_invisible_columns), SHOW_LONG_STATUS}, + {"Feature_json", (char*) offsetof(STATUS_VAR, feature_json), SHOW_LONG_STATUS}, + {"Feature_locale", (char*) offsetof(STATUS_VAR, feature_locale), SHOW_LONG_STATUS}, + {"Feature_subquery", (char*) offsetof(STATUS_VAR, feature_subquery), SHOW_LONG_STATUS}, + {"Feature_system_versioning", (char*) offsetof(STATUS_VAR, feature_system_versioning), SHOW_LONG_STATUS}, + {"Feature_application_time_periods", (char*) offsetof(STATUS_VAR, feature_application_time_periods), SHOW_LONG_STATUS}, + {"Feature_timezone", (char*) offsetof(STATUS_VAR, feature_timezone), SHOW_LONG_STATUS}, + {"Feature_trigger", (char*) offsetof(STATUS_VAR, feature_trigger), SHOW_LONG_STATUS}, + {"Feature_window_functions", (char*) offsetof(STATUS_VAR, feature_window_functions), SHOW_LONG_STATUS}, + {"Feature_xml", (char*) offsetof(STATUS_VAR, feature_xml), SHOW_LONG_STATUS}, + {"Handler_commit", (char*) offsetof(STATUS_VAR, ha_commit_count), SHOW_LONG_STATUS}, + {"Handler_delete", (char*) offsetof(STATUS_VAR, ha_delete_count), SHOW_LONG_STATUS}, + {"Handler_discover", (char*) offsetof(STATUS_VAR, ha_discover_count), SHOW_LONG_STATUS}, + {"Handler_external_lock", (char*) offsetof(STATUS_VAR, ha_external_lock_count), SHOW_LONG_STATUS}, + {"Handler_icp_attempts", (char*) offsetof(STATUS_VAR, ha_icp_attempts), SHOW_LONG_STATUS}, + {"Handler_icp_match", (char*) offsetof(STATUS_VAR, ha_icp_match), SHOW_LONG_STATUS}, + {"Handler_mrr_init", (char*) offsetof(STATUS_VAR, ha_mrr_init_count), SHOW_LONG_STATUS}, + {"Handler_mrr_key_refills", (char*) offsetof(STATUS_VAR, ha_mrr_key_refills_count), SHOW_LONG_STATUS}, + {"Handler_mrr_rowid_refills",(char*) offsetof(STATUS_VAR, ha_mrr_rowid_refills_count), SHOW_LONG_STATUS}, + {"Handler_prepare", (char*) offsetof(STATUS_VAR, ha_prepare_count), SHOW_LONG_STATUS}, + {"Handler_read_first", (char*) offsetof(STATUS_VAR, ha_read_first_count), SHOW_LONG_STATUS}, + {"Handler_read_key", (char*) offsetof(STATUS_VAR, ha_read_key_count), SHOW_LONG_STATUS}, + {"Handler_read_last", (char*) offsetof(STATUS_VAR, ha_read_last_count), SHOW_LONG_STATUS}, + {"Handler_read_next", (char*) offsetof(STATUS_VAR, ha_read_next_count), SHOW_LONG_STATUS}, + {"Handler_read_prev", (char*) offsetof(STATUS_VAR, ha_read_prev_count), SHOW_LONG_STATUS}, + {"Handler_read_retry", (char*) offsetof(STATUS_VAR, ha_read_retry_count), SHOW_LONG_STATUS}, + {"Handler_read_rnd", (char*) offsetof(STATUS_VAR, ha_read_rnd_count), SHOW_LONG_STATUS}, + {"Handler_read_rnd_deleted", (char*) offsetof(STATUS_VAR, ha_read_rnd_deleted_count), SHOW_LONG_STATUS}, + {"Handler_read_rnd_next", (char*) offsetof(STATUS_VAR, ha_read_rnd_next_count), SHOW_LONG_STATUS}, + {"Handler_rollback", (char*) offsetof(STATUS_VAR, ha_rollback_count), SHOW_LONG_STATUS}, + {"Handler_savepoint", (char*) offsetof(STATUS_VAR, ha_savepoint_count), SHOW_LONG_STATUS}, + {"Handler_savepoint_rollback",(char*) offsetof(STATUS_VAR, ha_savepoint_rollback_count), SHOW_LONG_STATUS}, + {"Handler_tmp_delete", (char*) offsetof(STATUS_VAR, ha_tmp_delete_count), SHOW_LONG_STATUS}, + {"Handler_tmp_update", (char*) offsetof(STATUS_VAR, ha_tmp_update_count), SHOW_LONG_STATUS}, + {"Handler_tmp_write", (char*) offsetof(STATUS_VAR, ha_tmp_write_count), SHOW_LONG_STATUS}, + {"Handler_update", (char*) offsetof(STATUS_VAR, ha_update_count), SHOW_LONG_STATUS}, + {"Handler_write", (char*) offsetof(STATUS_VAR, ha_write_count), SHOW_LONG_STATUS}, + SHOW_FUNC_ENTRY("Key", &show_default_keycache), + {"optimizer_join_prefixes_check_calls", (char*) offsetof(STATUS_VAR, optimizer_join_prefixes_check_calls), SHOW_LONG_STATUS}, + {"Last_query_cost", (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS}, +#ifndef DBUG_OFF + {"malloc_calls", (char*) &malloc_calls, SHOW_LONG}, +#endif + {"Max_statement_time_exceeded", (char*) offsetof(STATUS_VAR, max_statement_time_exceeded), SHOW_LONG_STATUS}, + {"Master_gtid_wait_count", (char*) offsetof(STATUS_VAR, master_gtid_wait_count), SHOW_LONG_STATUS}, + {"Master_gtid_wait_timeouts", (char*) offsetof(STATUS_VAR, master_gtid_wait_timeouts), SHOW_LONG_STATUS}, + {"Master_gtid_wait_time", (char*) offsetof(STATUS_VAR, master_gtid_wait_time), SHOW_LONG_STATUS}, + {"Max_used_connections", (char*) &max_used_connections, SHOW_LONG}, + {"Memory_used", (char*) &show_memory_used, SHOW_SIMPLE_FUNC}, + {"Memory_used_initial", (char*) &start_memory_used, SHOW_LONGLONG}, + {"Resultset_metadata_skipped", (char *) offsetof(STATUS_VAR, skip_metadata_count),SHOW_LONG_STATUS}, + {"Not_flushed_delayed_rows", (char*) &delayed_rows_in_use, SHOW_LONG_NOFLUSH}, + {"Open_files", (char*) &my_file_opened, SHOW_SINT}, + {"Open_streams", (char*) &my_stream_opened, SHOW_LONG_NOFLUSH}, + {"Open_table_definitions", (char*) &show_table_definitions, SHOW_SIMPLE_FUNC}, + {"Open_tables", (char*) &show_open_tables, SHOW_SIMPLE_FUNC}, + {"Opened_files", (char*) &my_file_total_opened, SHOW_LONG_NOFLUSH}, + {"Opened_plugin_libraries", (char*) &dlopen_count, SHOW_LONG}, + {"Opened_table_definitions", (char*) offsetof(STATUS_VAR, opened_shares), SHOW_LONG_STATUS}, + {"Opened_tables", (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS}, + {"Opened_views", (char*) offsetof(STATUS_VAR, opened_views), SHOW_LONG_STATUS}, + {"Prepared_stmt_count", (char*) &show_prepared_stmt_count, SHOW_SIMPLE_FUNC}, + {"Rows_sent", (char*) offsetof(STATUS_VAR, rows_sent), SHOW_LONGLONG_STATUS}, + {"Rows_read", (char*) offsetof(STATUS_VAR, rows_read), SHOW_LONGLONG_STATUS}, + {"Rows_tmp_read", (char*) offsetof(STATUS_VAR, rows_tmp_read), SHOW_LONGLONG_STATUS}, +#ifdef HAVE_REPLICATION + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_status", &SHOW_FNAME(status)), + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_clients", &SHOW_FNAME(clients)), + {"Rpl_semi_sync_master_yes_tx", (char*) &rpl_semi_sync_master_yes_transactions, SHOW_LONG}, + {"Rpl_semi_sync_master_no_tx", (char*) &rpl_semi_sync_master_no_transactions, SHOW_LONG}, + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_wait_sessions", &SHOW_FNAME(wait_sessions)), + {"Rpl_semi_sync_master_no_times", (char*) &rpl_semi_sync_master_off_times, SHOW_LONG}, + {"Rpl_semi_sync_master_timefunc_failures", (char*) &rpl_semi_sync_master_timefunc_fails, SHOW_LONG}, + {"Rpl_semi_sync_master_wait_pos_backtraverse", (char*) &rpl_semi_sync_master_wait_pos_backtraverse, SHOW_LONG}, + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_tx_wait_time", &SHOW_FNAME(trx_wait_time)), + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_tx_waits", &SHOW_FNAME(trx_wait_num)), + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_tx_avg_wait_time", &SHOW_FNAME(avg_trx_wait_time)), + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_net_wait_time", &SHOW_FNAME(net_wait_time)), + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_net_waits", &SHOW_FNAME(net_wait_num)), + SHOW_FUNC_ENTRY("Rpl_semi_sync_master_net_avg_wait_time", &SHOW_FNAME(avg_net_wait_time)), + {"Rpl_semi_sync_master_request_ack", (char*) &rpl_semi_sync_master_request_ack, SHOW_LONGLONG}, + {"Rpl_semi_sync_master_get_ack", (char*)&rpl_semi_sync_master_get_ack, SHOW_LONGLONG}, + {"Rpl_semi_sync_slave_status", (char*) &rpl_semi_sync_slave_status, SHOW_BOOL}, + {"Rpl_semi_sync_slave_send_ack", (char*) &rpl_semi_sync_slave_send_ack, SHOW_LONGLONG}, +#endif /* HAVE_REPLICATION */ +#ifdef HAVE_QUERY_CACHE + {"Qcache_free_blocks", (char*) &query_cache.free_memory_blocks, SHOW_LONG_NOFLUSH}, + {"Qcache_free_memory", (char*) &query_cache.free_memory, SHOW_LONG_NOFLUSH}, + {"Qcache_hits", (char*) &query_cache.hits, SHOW_LONG}, + {"Qcache_inserts", (char*) &query_cache.inserts, SHOW_LONG}, + {"Qcache_lowmem_prunes", (char*) &query_cache.lowmem_prunes, SHOW_LONG}, + {"Qcache_not_cached", (char*) &query_cache.refused, SHOW_LONG}, + {"Qcache_queries_in_cache", (char*) &query_cache.queries_in_cache, SHOW_LONG_NOFLUSH}, + {"Qcache_total_blocks", (char*) &query_cache.total_blocks, SHOW_LONG_NOFLUSH}, +#endif /*HAVE_QUERY_CACHE*/ + {"Queries", (char*) &show_queries, SHOW_SIMPLE_FUNC}, + {"Questions", (char*) offsetof(STATUS_VAR, questions), SHOW_LONG_STATUS}, +#ifdef HAVE_REPLICATION + {"Rpl_status", (char*) &show_rpl_status, SHOW_SIMPLE_FUNC}, +#endif + {"Select_full_join", (char*) offsetof(STATUS_VAR, select_full_join_count_), SHOW_LONG_STATUS}, + {"Select_full_range_join", (char*) offsetof(STATUS_VAR, select_full_range_join_count_), SHOW_LONG_STATUS}, + {"Select_range", (char*) offsetof(STATUS_VAR, select_range_count_), SHOW_LONG_STATUS}, + {"Select_range_check", (char*) offsetof(STATUS_VAR, select_range_check_count_), SHOW_LONG_STATUS}, + {"Select_scan", (char*) offsetof(STATUS_VAR, select_scan_count_), SHOW_LONG_STATUS}, + {"Slave_open_temp_tables", (char*) &slave_open_temp_tables, SHOW_ATOMIC_COUNTER_UINT32_T}, +#ifdef HAVE_REPLICATION + {"Slaves_connected", (char*) &binlog_dump_thread_count, SHOW_ATOMIC_COUNTER_UINT32_T}, + {"Slaves_running", (char*) &show_slaves_running, SHOW_SIMPLE_FUNC }, + {"Slave_connections", (char*) offsetof(STATUS_VAR, com_register_slave), SHOW_LONG_STATUS}, + {"Slave_heartbeat_period", (char*) &show_heartbeat_period, SHOW_SIMPLE_FUNC}, + {"Slave_received_heartbeats",(char*) &show_slave_received_heartbeats, SHOW_SIMPLE_FUNC}, + {"Slave_retried_transactions",(char*)&slave_retried_transactions, SHOW_LONG}, + {"Slave_running", (char*) &show_slave_running, SHOW_SIMPLE_FUNC}, + {"Slave_skipped_errors", (char*) &slave_skipped_errors, SHOW_LONGLONG}, +#endif + {"Slow_launch_threads", (char*) &slow_launch_threads, SHOW_LONG}, + {"Slow_queries", (char*) offsetof(STATUS_VAR, long_query_count), SHOW_LONG_STATUS}, + {"Sort_merge_passes", (char*) offsetof(STATUS_VAR, filesort_merge_passes_), SHOW_LONG_STATUS}, + {"Sort_priority_queue_sorts",(char*) offsetof(STATUS_VAR, filesort_pq_sorts_), SHOW_LONG_STATUS}, + {"Sort_range", (char*) offsetof(STATUS_VAR, filesort_range_count_), SHOW_LONG_STATUS}, + {"Sort_rows", (char*) offsetof(STATUS_VAR, filesort_rows_), SHOW_LONG_STATUS}, + {"Sort_scan", (char*) offsetof(STATUS_VAR, filesort_scan_count_), SHOW_LONG_STATUS}, +#ifdef HAVE_OPENSSL +#ifndef EMBEDDED_LIBRARY + {"Ssl_accept_renegotiates", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_accepts", (char*) &ssl_acceptor_stats.accept, SHOW_LONG}, + {"Ssl_callback_cache_hits", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_cipher", (char*) &show_ssl_get_cipher, SHOW_SIMPLE_FUNC}, + {"Ssl_cipher_list", (char*) &show_ssl_get_cipher_list, SHOW_SIMPLE_FUNC}, + {"Ssl_client_connects", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_connect_renegotiates", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_ctx_verify_depth", (char*) &ssl_acceptor_stats.verify_depth, SHOW_LONG}, + {"Ssl_ctx_verify_mode", (char*) &ssl_acceptor_stats.verify_mode, SHOW_LONG}, + {"Ssl_default_timeout", (char*) &show_ssl_get_default_timeout, SHOW_SIMPLE_FUNC}, + {"Ssl_finished_accepts", (char*) &ssl_acceptor_stats.accept_good, SHOW_LONG}, + {"Ssl_finished_connects", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_server_not_after", (char*) &show_ssl_get_server_not_after, SHOW_SIMPLE_FUNC}, + {"Ssl_server_not_before", (char*) &show_ssl_get_server_not_before, SHOW_SIMPLE_FUNC}, + {"Ssl_session_cache_hits", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_session_cache_misses", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_session_cache_mode", (char*) &ssl_acceptor_stats.session_cache_mode, SHOW_CHAR_PTR}, + {"Ssl_session_cache_overflows", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_session_cache_size", (char*) &ssl_acceptor_stats.cache_size, SHOW_LONG}, + {"Ssl_session_cache_timeouts", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_sessions_reused", (char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_used_session_cache_entries",(char*) &ssl_acceptor_stats.zero, SHOW_LONG}, + {"Ssl_verify_depth", (char*) &show_ssl_get_verify_depth, SHOW_SIMPLE_FUNC}, + {"Ssl_verify_mode", (char*) &show_ssl_get_verify_mode, SHOW_SIMPLE_FUNC}, + {"Ssl_version", (char*) &show_ssl_get_version, SHOW_SIMPLE_FUNC}, +#endif +#endif /* HAVE_OPENSSL */ + {"Syncs", (char*) &my_sync_count, SHOW_LONG_NOFLUSH}, + /* + Expression cache used only for caching subqueries now, so its statistic + variables we call subquery_cache*. + */ + {"Subquery_cache_hit", (char*) &subquery_cache_hit, SHOW_LONG}, + {"Subquery_cache_miss", (char*) &subquery_cache_miss, SHOW_LONG}, + {"Table_locks_immediate", (char*) &locks_immediate, SHOW_LONG}, + {"Table_locks_waited", (char*) &locks_waited, SHOW_LONG}, + {"Table_open_cache_active_instances", (char*) &show_tc_active_instances, SHOW_SIMPLE_FUNC}, + {"Table_open_cache_hits", (char*) offsetof(STATUS_VAR, table_open_cache_hits), SHOW_LONGLONG_STATUS}, + {"Table_open_cache_misses", (char*) offsetof(STATUS_VAR, table_open_cache_misses), SHOW_LONGLONG_STATUS}, + {"Table_open_cache_overflows", (char*) offsetof(STATUS_VAR, table_open_cache_overflows), SHOW_LONGLONG_STATUS}, +#ifdef HAVE_MMAP + {"Tc_log_max_pages_used", (char*) &tc_log_max_pages_used, SHOW_LONG}, + {"Tc_log_page_size", (char*) &tc_log_page_size, SHOW_LONG_NOFLUSH}, + {"Tc_log_page_waits", (char*) &tc_log_page_waits, SHOW_LONG}, +#endif +#ifdef HAVE_POOL_OF_THREADS + {"Threadpool_idle_threads", (char *) &show_threadpool_idle_threads, SHOW_SIMPLE_FUNC}, + {"Threadpool_threads", (char *) &show_threadpool_threads, SHOW_SIMPLE_FUNC}, +#endif + {"Threads_cached", (char*) &show_cached_thread_count, SHOW_SIMPLE_FUNC}, + {"Threads_connected", (char*) &connection_count, SHOW_INT}, + {"Threads_created", (char*) &thread_created, SHOW_LONG_NOFLUSH}, + {"Threads_running", (char*) offsetof(STATUS_VAR, threads_running), SHOW_UINT32_STATUS}, + {"Transactions_multi_engine", (char*) &transactions_multi_engine, SHOW_LONG}, + {"Rpl_transactions_multi_engine", (char*) &rpl_transactions_multi_engine, SHOW_LONG}, + {"Transactions_gtid_foreign_engine", (char*) &transactions_gtid_foreign_engine, SHOW_LONG}, + {"Update_scan", (char*) offsetof(STATUS_VAR, update_scan_count), SHOW_LONG_STATUS}, + {"Uptime", (char*) &show_starttime, SHOW_SIMPLE_FUNC}, +#ifdef ENABLED_PROFILING + {"Uptime_since_flush_status",(char*) &show_flushstatustime, SHOW_SIMPLE_FUNC}, +#endif +#ifdef WITH_WSREP + {"wsrep_connected", (char*) &wsrep_connected, SHOW_BOOL}, + {"wsrep_ready", (char*) &wsrep_show_ready, SHOW_FUNC}, + {"wsrep_cluster_state_uuid",(char*) &wsrep_cluster_state_uuid,SHOW_CHAR_PTR}, + {"wsrep_cluster_conf_id", (char*) &wsrep_cluster_conf_id, SHOW_LONGLONG}, + {"wsrep_cluster_status", (char*) &wsrep_cluster_status, SHOW_CHAR_PTR}, + {"wsrep_cluster_size", (char*) &wsrep_cluster_size, SHOW_LONG_NOFLUSH}, + {"wsrep_local_index", (char*) &wsrep_local_index, SHOW_LONG_NOFLUSH}, + {"wsrep_local_bf_aborts", (char*) &wsrep_show_bf_aborts, SHOW_FUNC}, + {"wsrep_provider_name", (char*) &wsrep_provider_name, SHOW_CHAR_PTR}, + {"wsrep_provider_version", (char*) &wsrep_provider_version, SHOW_CHAR_PTR}, + {"wsrep_provider_vendor", (char*) &wsrep_provider_vendor, SHOW_CHAR_PTR}, + {"wsrep_provider_capabilities", (char*) &wsrep_provider_capabilities, SHOW_CHAR_PTR}, + {"wsrep_thread_count", (char*) &wsrep_running_threads, SHOW_LONG_NOFLUSH}, + {"wsrep_applier_thread_count", (char*) &wsrep_running_applier_threads, SHOW_LONG_NOFLUSH}, + {"wsrep_rollbacker_thread_count", (char *) &wsrep_running_rollbacker_threads, SHOW_LONG_NOFLUSH}, + {"wsrep_cluster_capabilities", (char*) &wsrep_cluster_capabilities, SHOW_CHAR_PTR}, + SHOW_FUNC_ENTRY("wsrep", &wsrep_show_status), +#endif + {NullS, NullS, SHOW_LONG} +}; + +static bool add_terminator(DYNAMIC_ARRAY *options) +{ + my_option empty_element= {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}; + return insert_dynamic(options, (uchar *)&empty_element); +} + +static bool add_many_options(DYNAMIC_ARRAY *options, my_option *list, + size_t elements) +{ + for (my_option *opt= list; opt < list + elements; opt++) + if (insert_dynamic(options, opt)) + return 1; + return 0; +} + +#ifndef EMBEDDED_LIBRARY +static void print_version(void) +{ + if (IS_SYSVAR_AUTOSIZE(&server_version_ptr)) + set_server_version(server_version, sizeof(server_version)); + + printf("%s Ver %s for %s on %s (%s)\n",my_progname, + server_version,SYSTEM_TYPE,MACHINE_TYPE, MYSQL_COMPILATION_COMMENT); +} + +/** Compares two options' names, treats - and _ the same */ +static int option_cmp(my_option *a, my_option *b) +{ + const char *sa= a->name; + const char *sb= b->name; + for (; *sa || *sb; sa++, sb++) + { + if (*sa < *sb) + { + if (*sa == '-' && *sb == '_') + continue; + else + return -1; + } + if (*sa > *sb) + { + if (*sa == '_' && *sb == '-') + continue; + else + return 1; + } + } + return 0; +} + +static void print_help() +{ + MEM_ROOT mem_root; + init_alloc_root(PSI_NOT_INSTRUMENTED, &mem_root, 4096, 4096, MYF(0)); + + pop_dynamic(&all_options); + add_many_options(&all_options, pfs_early_options, + array_elements(pfs_early_options)); + sys_var_add_options(&all_options, sys_var::PARSE_EARLY); + add_plugin_options(&all_options, &mem_root); + sort_dynamic(&all_options, (qsort_cmp) option_cmp); + sort_dynamic(&all_options, (qsort_cmp) option_cmp); + add_terminator(&all_options); + + my_print_help((my_option*) all_options.buffer); + + /* Add variables that must be shown but not changed, like version numbers */ + pop_dynamic(&all_options); + sys_var_add_options(&all_options, sys_var::GETOPT_ONLY_HELP); + sort_dynamic(&all_options, (qsort_cmp) option_cmp); + add_terminator(&all_options); + my_print_variables((my_option*) all_options.buffer); + + free_root(&mem_root, MYF(0)); +} + +static void usage(void) +{ + DBUG_ENTER("usage"); + myf utf8_flag= global_system_variables.old_behavior & + OLD_MODE_UTF8_IS_UTF8MB3 ? MY_UTF8_IS_UTF8MB3 : 0; + if (!(default_charset_info= get_charset_by_csname(default_character_set_name, + MY_CS_PRIMARY, + MYF(utf8_flag | MY_WME)))) + exit(1); + if (!default_collation_name) + default_collation_name= (char*) default_charset_info->coll_name.str; + print_version(); + puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000")); + puts("Starts the MariaDB database server.\n"); + printf("Usage: %s [OPTIONS]\n", my_progname); + if (!opt_verbose) + puts("\nFor more help options (several pages), use mysqld --verbose --help."); + else + { +#ifdef _WIN32 + puts("NT and Win32 specific options:\n" + " --install Install the default service (NT).\n" + " --install-manual Install the default service started manually (NT).\n" + " --install service_name Install an optional service (NT).\n" + " --install-manual service_name Install an optional service started manually (NT).\n" + " --remove Remove the default service from the service list (NT).\n" + " --remove service_name Remove the service_name from the service list (NT).\n" + " --enable-named-pipe Only to be used for the default server (NT).\n" + " --standalone Dummy option to start as a standalone server (NT)."); + puts(""); +#endif + print_defaults(MYSQL_CONFIG_NAME,load_default_groups); + puts(""); + set_ports(); + + /* Print out all the options including plugin supplied options */ + print_help(); + + if (! plugins_are_initialized) + { + puts("\nPlugins have parameters that are not reflected in this list" + "\nbecause execution stopped before plugins were initialized."); + } + + puts("\nTo see what variables a running server is using, type" + "\n'SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES' instead of 'mysqld --verbose --help' or 'mariadbd --verbose --help'."); + } + DBUG_VOID_RETURN; +} +#endif /*!EMBEDDED_LIBRARY*/ + +/** + Initialize MySQL global variables to default values. + + @note + The reason to set a lot of global variables to zero is to allow one to + restart the embedded server with a clean environment + It's also needed on some exotic platforms where global variables are + not set to 0 when a program starts. + + We don't need to set variables referred to in my_long_options + as these are initialized by my_getopt. +*/ + +static int mysql_init_variables(void) +{ + /* Things reset to zero */ + opt_skip_slave_start= opt_reckless_slave = 0; + mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0; +#if defined(HAVE_REALPATH) && !defined(HAVE_valgrind) && !defined(HAVE_BROKEN_REALPATH) + /* We can only test for sub paths if my_symlink.c is using realpath */ + mysys_test_invalid_symlink= path_starts_from_data_home_dir; +#endif + opt_log= 0; + opt_bin_log= opt_bin_log_used= 0; + opt_disable_networking= opt_skip_show_db=0; + opt_skip_name_resolve= 0; + opt_ignore_builtin_innodb= 0; + opt_logname= opt_binlog_index_name= opt_slow_logname= 0; + opt_log_basename= 0; + opt_tc_log_file= (char *)"tc.log"; // no hostname in tc_log file name ! + opt_ddl_recovery_file= (char *) "ddl_recovery.log"; + opt_secure_auth= 0; + opt_bootstrap= opt_myisam_log= 0; + disable_log_notes= 0; + mqh_used= 0; + cleanup_done= 0; + select_errors= dropping_tables= ha_open_options=0; + THD_count::count= CONNECT::count= 0; + slave_open_temp_tables= 0; + opt_endinfo= using_udf_functions= 0; + opt_using_transactions= 0; + abort_loop= select_thread_in_use= signal_thread_in_use= 0; + grant_option= 0; + aborted_threads= aborted_connects= aborted_connects_preauth= 0; + malloc_calls= 0; + subquery_cache_miss= subquery_cache_hit= 0; + delayed_insert_threads= delayed_insert_writes= delayed_rows_in_use= 0; + delayed_insert_errors= thread_created= 0; + specialflag= 0; + binlog_cache_use= binlog_cache_disk_use= 0; + max_used_connections= slow_launch_threads = 0; + mysqld_user= mysqld_chroot= opt_init_file= opt_bin_logname = 0; + prepared_stmt_count= 0; + mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS; + bzero((uchar*) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list)); + /* Clear all except global_memory_used */ + bzero((char*) &global_status_var, offsetof(STATUS_VAR, + last_cleared_system_status_var)); + opt_large_pages= 0; + opt_super_large_pages= 0; +#if defined(ENABLED_DEBUG_SYNC) + opt_debug_sync_timeout= 0; +#endif /* defined(ENABLED_DEBUG_SYNC) */ + key_map_full.set_all(); + + /* Character sets */ + system_charset_info= &my_charset_utf8mb3_general_ci; + files_charset_info= &my_charset_utf8mb3_general_ci; + national_charset_info= &my_charset_utf8mb3_general_ci; + table_alias_charset= &my_charset_bin; + character_set_filesystem= &my_charset_bin; + + opt_specialflag= SPECIAL_ENGLISH; + mysql_home_ptr= mysql_home; + log_error_file_ptr= log_error_file; + protocol_version= PROTOCOL_VERSION; + what_to_log= ~(1UL << COM_TIME); + denied_connections= 0; + executed_events= 0; + global_query_id= 1; + global_thread_id= 0; + strnmov(server_version, MYSQL_SERVER_VERSION, sizeof(server_version)-1); + thread_cache.init(); + key_caches.empty(); + if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str, + default_key_cache_base.length))) + { + sql_print_error("Cannot allocate the keycache"); + return 1; + } + + /* set key_cache_hash.default_value = dflt_key_cache */ + multi_keycache_init(); + + /* Set directory paths */ + mysql_real_data_home_len= + (uint)(strmake_buf(mysql_real_data_home, + get_relative_path(MYSQL_DATADIR)) - mysql_real_data_home); + /* Replication parameters */ + master_info_file= (char*) "master.info", + relay_log_info_file= (char*) "relay-log.info"; + report_user= report_password = report_host= 0; /* TO BE DELETED */ + opt_relay_logname= opt_relaylog_index_name= 0; + slave_retried_transactions= 0; + transactions_multi_engine= 0; + rpl_transactions_multi_engine= 0; + transactions_gtid_foreign_engine= 0; + log_bin_basename= NULL; + log_bin_index= NULL; + + /* Variables in libraries */ + charsets_dir= 0; + default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME; + default_collation_name= compiled_default_collation_name; + character_set_filesystem_name= (char*) "binary"; + lc_messages= (char*) "en_US"; + lc_time_names_name= (char*) "en_US"; + + /* Variables that depends on compile options */ +#ifndef DBUG_OFF + default_dbug_option=IF_WIN("d:t:i:O,\\mariadbd.trace", + "d:t:i:o,/tmp/mariadbd.trace"); + current_dbug_option= default_dbug_option; +#endif + opt_error_log= IF_WIN(1,0); +#ifdef ENABLED_PROFILING + have_profiling = SHOW_OPTION_YES; +#else + have_profiling = SHOW_OPTION_NO; +#endif + +#if defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY) + have_ssl=SHOW_OPTION_YES; +#if defined(HAVE_WOLFSSL) + have_openssl= SHOW_OPTION_NO; +#else + have_openssl= SHOW_OPTION_YES; +#endif +#else + have_openssl= have_ssl= SHOW_OPTION_NO; +#endif +#ifdef HAVE_BROKEN_REALPATH + have_symlink=SHOW_OPTION_NO; +#else + have_symlink=SHOW_OPTION_YES; +#endif +#ifdef HAVE_DLOPEN + have_dlopen=SHOW_OPTION_YES; +#else + have_dlopen=SHOW_OPTION_NO; +#endif +#ifdef HAVE_QUERY_CACHE + have_query_cache=SHOW_OPTION_YES; +#else + have_query_cache=SHOW_OPTION_NO; +#endif +#ifdef HAVE_SPATIAL + have_geometry=SHOW_OPTION_YES; +#else + have_geometry=SHOW_OPTION_NO; +#endif +#ifdef HAVE_RTREE_KEYS + have_rtree_keys=SHOW_OPTION_YES; +#else + have_rtree_keys=SHOW_OPTION_NO; +#endif +#ifdef HAVE_CRYPT + have_crypt=SHOW_OPTION_YES; +#else + have_crypt=SHOW_OPTION_NO; +#endif +#ifdef HAVE_COMPRESS + have_compress= SHOW_OPTION_YES; +#else + have_compress= SHOW_OPTION_NO; +#endif +#ifdef HAVE_LIBWRAP + libwrapName= NullS; +#endif +#ifdef HAVE_OPENSSL + des_key_file = 0; +#ifndef EMBEDDED_LIBRARY + ssl_acceptor_fd= 0; +#endif /* ! EMBEDDED_LIBRARY */ +#endif /* HAVE_OPENSSL */ + +#if defined(_WIN32) + /* Allow Win32 users to move MySQL anywhere */ + { + char prg_dev[LIBLEN]; + char executing_path_name[LIBLEN]; + if (!test_if_hard_path(my_progname)) + { + // we don't want to use GetModuleFileName inside of my_path since + // my_path is a generic path dereferencing function and here we care + // only about the executing binary. + GetModuleFileName(NULL, executing_path_name, sizeof(executing_path_name)); + my_path(prg_dev, executing_path_name, NULL); + } + else + my_path(prg_dev, my_progname, "mysql/bin"); + // Remove 'bin' to get base dir + safe_strcat(prg_dev, sizeof(prg_dev), "/../"); + cleanup_dirname(mysql_home,prg_dev); + } +#else + const char *tmpenv; + if (!(tmpenv = getenv("MY_BASEDIR_VERSION"))) + tmpenv = DEFAULT_MYSQL_HOME; + strmake_buf(mysql_home, tmpenv); + set_sys_var_value_origin(&mysql_home_ptr, sys_var::ENV); +#endif + + if (wsrep_init_vars()) + return 1; + + return 0; +} + +my_bool +mysqld_get_one_option(const struct my_option *opt, const char *argument, + const char *filename) +{ + if (opt->app_type) + { + sys_var *var= (sys_var*) opt->app_type; + if (argument == autoset_my_option) + { + var->value_origin= sys_var::AUTO; + return 0; + } + if (*filename) + { + var->origin_filename= filename; + var->value_origin= sys_var::CONFIG; + } + else + var->value_origin= sys_var::COMMAND_LINE; + } + + switch(opt->id) { + case '#': +#ifndef DBUG_OFF + if (!argument) + argument= (char*) default_dbug_option; + if (argument[0] == '0' && !argument[1]) + { + DEBUGGER_OFF; + break; + } + DEBUGGER_ON; + if (argument[0] == '1' && !argument[1]) + break; + DBUG_SET_INITIAL(argument); + current_dbug_option= argument; + opt_endinfo=1; /* unireg: memory allocation */ +#else + sql_print_warning("'%s' is disabled in this build", opt->name); +#endif + break; + case OPT_REMOVED_OPTION: + sql_print_warning("'%s' was removed. It does nothing now and exists only " + "for compatibility with old my.cnf files.", opt->name); + break; + case OPT_MYSQL_COMPATIBILITY: + sql_print_warning("'%s' is MySQL 5.6 / 5.7 compatible option. Not used or " + "needed in MariaDB.", opt->name); + break; + case OPT_MYSQL_TO_BE_IMPLEMENTED: + sql_print_warning("'%s' is MySQL 5.6 / 5.7 compatible option. To be " + "implemented in later versions.", opt->name); + break; + case 'a': + SYSVAR_AUTOSIZE(global_system_variables.sql_mode, MODE_ANSI); + SYSVAR_AUTOSIZE(global_system_variables.tx_isolation, ISO_SERIALIZABLE); + break; + case 'b': + strmake_buf(mysql_home, argument); + break; + case 'C': + if (default_collation_name == compiled_default_collation_name) + default_collation_name= 0; + break; + case 'h': + strmake_buf(mysql_real_data_home, argument); + /* Correct pointer set by my_getopt (for embedded library) */ + mysql_real_data_home_ptr= mysql_real_data_home; + break; + case 'u': + if (!mysqld_user || !strcmp(mysqld_user, argument)) + mysqld_user= argument; + else + sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user); + break; + case 'L': + strmake_buf(lc_messages_dir, argument); + break; + case OPT_BINLOG_FORMAT: + binlog_format_used= true; + break; +#include <sslopt-case.h> + case 'V': + if (argument) + { + strmake(server_version, argument, sizeof(server_version) - 1); + set_sys_var_value_origin(&server_version_ptr, + *filename ? sys_var::CONFIG : sys_var::COMMAND_LINE, filename); + using_custom_server_version= true; + } +#ifndef EMBEDDED_LIBRARY + else + { + print_version(); + opt_abort= 1; // Abort after parsing all options + } +#endif /*EMBEDDED_LIBRARY*/ + break; + case 'W': + if (!argument) + global_system_variables.log_warnings++; + else if (argument == disabled_my_option) + global_system_variables.log_warnings= 0L; + else + global_system_variables.log_warnings= atoi(argument); + break; + case 'T': + test_flags= argument ? ((uint) atoi(argument) & ~TEST_BLOCKING) : 0; + opt_endinfo=1; + break; + case OPT_THREAD_CONCURRENCY: + WARN_DEPRECATED_NO_REPLACEMENT(NULL, "THREAD_CONCURRENCY"); + break; + case (int) OPT_ISAM_LOG: + opt_myisam_log=1; + break; + case (int) OPT_BIN_LOG: + opt_bin_log= MY_TEST(argument != disabled_my_option); + opt_bin_log_used= 1; + break; + case (int) OPT_LOG_BASENAME: + { + if (opt_log_basename[0] == 0 || strchr(opt_log_basename, FN_EXTCHAR) || + strchr(opt_log_basename,FN_LIBCHAR) || + !is_filename_allowed(opt_log_basename, strlen(opt_log_basename), FALSE)) + { + sql_print_error("Wrong argument for --log-basename. It can't be empty or contain '.' or '" FN_DIRSEP "'. It must be valid filename."); + return 1; + } + if (log_error_file_ptr != disabled_my_option) + SYSVAR_AUTOSIZE(log_error_file_ptr, opt_log_basename); + + /* General log file */ + make_default_log_name(&opt_logname, ".log", false); + /* Slow query log file */ + make_default_log_name(&opt_slow_logname, "-slow.log", false); + /* Binary log file */ + make_default_log_name(&opt_bin_logname, "-bin", true); + /* Binary log index file */ + make_default_log_name(&opt_binlog_index_name, "-bin.index", true); + set_sys_var_value_origin(&opt_logname, sys_var::AUTO); + set_sys_var_value_origin(&opt_slow_logname, sys_var::AUTO); + if (!opt_logname || !opt_slow_logname || !opt_bin_logname || + !opt_binlog_index_name) + return 1; + +#ifdef HAVE_REPLICATION + /* Relay log file */ + make_default_log_name(&opt_relay_logname, "-relay-bin", true); + /* Relay log index file */ + make_default_log_name(&opt_relaylog_index_name, "-relay-bin.index", true); + set_sys_var_value_origin(&opt_relay_logname, sys_var::AUTO); + if (!opt_relay_logname || !opt_relaylog_index_name) + return 1; +#endif + + if (IS_SYSVAR_AUTOSIZE(&pidfile_name_ptr)) + { + SYSVAR_AUTOSIZE(pidfile_name_ptr, pidfile_name); + /* PID file */ + strmake(pidfile_name, argument, sizeof(pidfile_name)-5); + strmov(fn_ext(pidfile_name),".pid"); + } + break; + } + case (int)OPT_EXPIRE_LOGS_DAYS: + { + binlog_expire_logs_seconds= (ulong)(expire_logs_days*24*60*60); + break; + } + case (int)OPT_BINLOG_EXPIRE_LOGS_SECONDS: + { + expire_logs_days= (binlog_expire_logs_seconds/double (24*60*60)); + break; + } + +#ifdef HAVE_REPLICATION + case (int)OPT_REPLICATE_IGNORE_DB: + { + cur_rpl_filter->add_ignore_db(argument); + break; + } + case (int)OPT_REPLICATE_DO_DB: + { + cur_rpl_filter->add_do_db(argument); + break; + } + case (int)OPT_REPLICATE_REWRITE_DB: + { + /* See also OPT_REWRITE_DB handling in client/mysqlbinlog.cc */ + if (cur_rpl_filter->add_rewrite_db(argument)) + { + sql_print_error("Bad syntax in replicate-rewrite-db.Expected syntax is FROM->TO."); + return 1; + } + break; + } + case (int)OPT_SLAVE_PARALLEL_MODE: + { + /* Store latest mode for Master::Info */ + cur_rpl_filter->set_parallel_mode + ((enum_slave_parallel_mode)opt_slave_parallel_mode); + break; + } + + case (int)OPT_BINLOG_IGNORE_DB: + { + binlog_filter->add_ignore_db(argument); + break; + } + case (int)OPT_BINLOG_DO_DB: + { + binlog_filter->add_do_db(argument); + break; + } + case (int)OPT_REPLICATE_DO_TABLE: + { + if (cur_rpl_filter->add_do_table(argument)) + { + sql_print_error("Could not add do table rule '%s'", argument); + return 1; + } + break; + } + case (int)OPT_REPLICATE_WILD_DO_TABLE: + { + if (cur_rpl_filter->add_wild_do_table(argument)) + { + sql_print_error("Could not add do table rule '%s'", argument); + return 1; + } + break; + } + case (int)OPT_REPLICATE_WILD_IGNORE_TABLE: + { + if (cur_rpl_filter->add_wild_ignore_table(argument)) + { + sql_print_error("Could not add ignore table rule '%s'", argument); + return 1; + } + break; + } + case (int)OPT_REPLICATE_IGNORE_TABLE: + { + if (cur_rpl_filter->add_ignore_table(argument)) + { + sql_print_error("Could not add ignore table rule '%s'", argument); + return 1; + } + break; + } +#endif /* HAVE_REPLICATION */ + case (int) OPT_SAFE: + opt_specialflag|= SPECIAL_SAFE_MODE | SPECIAL_NO_NEW_FUNC; + SYSVAR_AUTOSIZE(delay_key_write_options, (uint) DELAY_KEY_WRITE_NONE); + SYSVAR_AUTOSIZE(myisam_recover_options, HA_RECOVER_DEFAULT); + ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE); +#ifdef HAVE_QUERY_CACHE + SYSVAR_AUTOSIZE(query_cache_size, 0); +#endif + sql_print_warning("The syntax '--safe-mode' is deprecated and will be " + "removed in a future release."); + break; + case (int) OPT_SKIP_HOST_CACHE: + opt_specialflag|= SPECIAL_NO_HOST_CACHE; + break; + case OPT_CONSOLE: + if (opt_console) + opt_error_log= 0; // Force logs to stdout + break; + case OPT_BOOTSTRAP: + opt_noacl=opt_bootstrap=1; +#ifdef _WIN32 + { + /* + Check if security descriptor is passed from + mysql_install_db.exe. + Used by Windows installer to correctly setup + privileges on the new directories. + */ + char* dir_sddl = getenv("MARIADB_NEW_DIRECTORY_SDDL"); + if (dir_sddl) + { + ConvertStringSecurityDescriptorToSecurityDescriptor( + dir_sddl, SDDL_REVISION_1, &my_dir_security_attributes.lpSecurityDescriptor, NULL); + DBUG_ASSERT(my_dir_security_attributes.lpSecurityDescriptor); + } + } +#endif + break; + case OPT_SERVER_ID: + ::server_id= global_system_variables.server_id; + break; + case OPT_SEQURE_FILE_PRIV: + if (argument == disabled_my_option) + { + my_free(opt_secure_file_priv); + opt_secure_file_priv= 0; + } + break; + case OPT_LOWER_CASE_TABLE_NAMES: + lower_case_table_names_used= 1; + break; +#if defined(ENABLED_DEBUG_SYNC) + case OPT_DEBUG_SYNC_TIMEOUT: + /* + Debug Sync Facility. See debug_sync.cc. + Default timeout for WAIT_FOR action. + Default value is zero (facility disabled). + If option is given without an argument, supply a non-zero value. + */ + if (!argument) + { + /* purecov: begin tested */ + opt_debug_sync_timeout= DEBUG_SYNC_DEFAULT_WAIT_TIMEOUT; + /* purecov: end */ + } + break; +#endif /* defined(ENABLED_DEBUG_SYNC) */ + case OPT_LOG_ERROR: + /* + "No --log-error" == "write errors to stderr", + "--log-error without argument" == "write errors to a file". + */ + if (argument == NULL) /* no argument */ + log_error_file_ptr= const_cast<char*>(""); + break; + case OPT_IGNORE_DB_DIRECTORY: + opt_ignore_db_dirs= NULL; // will be set in ignore_db_dirs_process_additions + if (*argument == 0) + ignore_db_dirs_reset(); + else + { + if (push_ignored_db_dir(argument)) + { + sql_print_error("Can't start server: " + "cannot process --ignore-db-dir=%.*s", + FN_REFLEN, argument); + return 1; + } + } + break; + case OPT_PLUGIN_LOAD: + free_list(opt_plugin_load_list_ptr); + if (argument == disabled_my_option) + break; // Resets plugin list + /* fall through */ + case OPT_PLUGIN_LOAD_ADD: + opt_plugin_load_list_ptr->push_back(new i_string(argument)); + break; + case OPT_PFS_INSTRUMENT: + { +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE +#ifndef EMBEDDED_LIBRARY + /* Parse instrument name and value from argument string */ + const char *name= argument, *ptr, *val; + + /* Trim leading spaces from instrument name */ + while (*name && my_isspace(mysqld_charset, *name)) + name++; + + /* Assignment required */ + if (!(ptr= strchr(name, '='))) + { + my_getopt_error_reporter(WARNING_LEVEL, + "Missing value for performance_schema_instrument " + "'%s'", argument); + return 0; + } + + /* Option value */ + val= ptr + 1; + + /* Trim trailing spaces and slashes from instrument name */ + while (ptr > name && (my_isspace(mysqld_charset, ptr[-1]) || + ptr[-1] == '/')) + ptr--; + if (ptr == name) + { + my_getopt_error_reporter(WARNING_LEVEL, + "Invalid instrument name for " + "performance_schema_instrument '%s'", name); + return 0; + } + name= strmake_root(&startup_root, name, (size_t) (ptr - name)); + + /* Trim leading spaces from option value */ + while (*val && my_isspace(mysqld_charset, *val)) + val++; + + /* Find end of value */ + for (ptr= val; *ptr && !my_isspace(mysqld_charset, *ptr) ; ptr++) + {} + if (ptr == val) + { + my_getopt_error_reporter(WARNING_LEVEL, + "No value for performance_schema_instrument " + "'%s'", name); + return 0; + } + val= strmake_root(&startup_root, val, (size_t) (ptr - val)); + + /* Add instrument name and value to array of configuration options */ + if (add_pfs_instr_to_array(name, val)) + { + my_getopt_error_reporter(WARNING_LEVEL, + "Invalid value for performance_schema_instrument " + "'%s'", name); + return 0; + } +#endif /* EMBEDDED_LIBRARY */ +#endif + break; + } +#ifdef WITH_WSREP + case OPT_WSREP_CAUSAL_READS: + { + if (global_system_variables.wsrep_causal_reads) + { + WSREP_WARN("option --wsrep-causal-reads is deprecated"); + if (!(global_system_variables.wsrep_sync_wait & WSREP_SYNC_WAIT_BEFORE_READ)) + { + WSREP_WARN("--wsrep-causal-reads=ON takes precedence over --wsrep-sync-wait=%u. " + "WSREP_SYNC_WAIT_BEFORE_READ is on", + global_system_variables.wsrep_sync_wait); + global_system_variables.wsrep_sync_wait |= WSREP_SYNC_WAIT_BEFORE_READ; + } + } + else + { + if (global_system_variables.wsrep_sync_wait & WSREP_SYNC_WAIT_BEFORE_READ) { + WSREP_WARN("--wsrep-sync-wait=%u takes precedence over --wsrep-causal-reads=OFF. " + "WSREP_SYNC_WAIT_BEFORE_READ is on", + global_system_variables.wsrep_sync_wait); + global_system_variables.wsrep_causal_reads = 1; + } + } + break; + } + case OPT_WSREP_SYNC_WAIT: + global_system_variables.wsrep_causal_reads= + MY_TEST(global_system_variables.wsrep_sync_wait & + WSREP_SYNC_WAIT_BEFORE_READ); + break; +#endif /* WITH_WSREP */ + } + return 0; +} + + +/** Handle arguments for multiple key caches. */ + +C_MODE_START + +static void* +mysql_getopt_value(const char *name, uint length, + const struct my_option *option, int *error) +{ + if (error) + *error= 0; + switch (option->id) { + case OPT_KEY_BUFFER_SIZE: + case OPT_KEY_CACHE_BLOCK_SIZE: + case OPT_KEY_CACHE_DIVISION_LIMIT: + case OPT_KEY_CACHE_AGE_THRESHOLD: + case OPT_KEY_CACHE_PARTITIONS: + case OPT_KEY_CACHE_CHANGED_BLOCKS_HASH_SIZE: + { + KEY_CACHE *key_cache; + if (unlikely(!(key_cache= get_or_create_key_cache(name, length)))) + { + if (error) + *error= EXIT_OUT_OF_MEMORY; + return 0; + } + switch (option->id) { + case OPT_KEY_BUFFER_SIZE: + return &key_cache->param_buff_size; + case OPT_KEY_CACHE_BLOCK_SIZE: + return &key_cache->param_block_size; + case OPT_KEY_CACHE_DIVISION_LIMIT: + return &key_cache->param_division_limit; + case OPT_KEY_CACHE_AGE_THRESHOLD: + return &key_cache->param_age_threshold; + case OPT_KEY_CACHE_PARTITIONS: + return (uchar**) &key_cache->param_partitions; + case OPT_KEY_CACHE_CHANGED_BLOCKS_HASH_SIZE: + return (uchar**) &key_cache->changed_blocks_hash_size; + } + } + /* We return in all cases above. Let us silence -Wimplicit-fallthrough */ + DBUG_ASSERT(0); +#ifdef HAVE_REPLICATION + /* fall through */ + case OPT_REPLICATE_DO_DB: + case OPT_REPLICATE_DO_TABLE: + case OPT_REPLICATE_IGNORE_DB: + case OPT_REPLICATE_IGNORE_TABLE: + case OPT_REPLICATE_WILD_DO_TABLE: + case OPT_REPLICATE_WILD_IGNORE_TABLE: + case OPT_REPLICATE_REWRITE_DB: + case OPT_SLAVE_PARALLEL_MODE: + { + /* Store current filter for mysqld_get_one_option() */ + if (!(cur_rpl_filter= get_or_create_rpl_filter(name, length))) + { + if (error) + *error= EXIT_OUT_OF_MEMORY; + } + if (option->id == OPT_SLAVE_PARALLEL_MODE) + { + /* + Ensure parallel_mode variable is shown in --help. The other + variables are not easily printable here. + */ + return (char**) &opt_slave_parallel_mode; + } + return 0; + } +#endif + } + return option->value; +} + +static void option_error_reporter(enum loglevel level, const char *format, ...) +{ + va_list args; + va_start(args, format); + + /* + Don't print warnings for --loose options during bootstrap if + log_warnings <= 2 (2 is default) as warnings during bootstrap + can confuse people when running mysql_install_db and other scripts. + Don't print loose warnings at all if log_warnings <= 1 + */ + if (level == ERROR_LEVEL || + (global_system_variables.log_warnings > + (ulong) (1 + MY_TEST(opt_bootstrap)))) + { + vprint_msg_to_log(level, format, args); + } + va_end(args); +} + +C_MODE_END + +/** + Get server options from the command line, + and perform related server initializations. + @param [in, out] argc_ptr command line options (count) + @param [in, out] argv_ptr command line options (values) + @return 0 on success + + @todo + - FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code? +*/ +static int get_options(int *argc_ptr, char ***argv_ptr) +{ + int ho_error; + + my_getopt_get_addr= mysql_getopt_value; + my_getopt_error_reporter= option_error_reporter; + + /* prepare all_options array */ + my_init_dynamic_array(PSI_INSTRUMENT_ME, &all_options, sizeof(my_option), + array_elements(my_long_options) + sys_var_elements(), + array_elements(my_long_options)/4, MYF(0)); + add_many_options(&all_options, my_long_options, array_elements(my_long_options)); + sys_var_add_options(&all_options, 0); + add_terminator(&all_options); + + /* Skip unknown options so that they may be processed later by plugins */ + my_getopt_skip_unknown= TRUE; + + if ((ho_error= handle_options(argc_ptr, argv_ptr, + (my_option*) (all_options.buffer), + mysqld_get_one_option))) + return ho_error; + + if (!opt_help) + delete_dynamic(&all_options); + else + opt_abort= 1; + + /* Add back the program name handle_options removes */ + (*argc_ptr)++; + (*argv_ptr)--; + + disable_log_notes= opt_silent_startup; + + /* + Options have been parsed. Now some of them need additional special + handling, like custom value checking, checking of incompatibilites + between options, setting of multiple variables, etc. + Do them here. + */ + + if (global_system_variables.old_mode) + { + global_system_variables.old_behavior|= (OLD_MODE_NO_PROGRESS_INFO | + OLD_MODE_IGNORE_INDEX_ONLY_FOR_JOIN | + OLD_MODE_COMPAT_5_1_CHECKSUM); + sql_print_warning("--old is deprecated and will be removed in a future " + "release. Please use --old-mode instead. "); + } + + if (global_system_variables.net_buffer_length > + global_system_variables.max_allowed_packet) + { + sql_print_warning("net_buffer_length (%lu) is set to be larger " + "than max_allowed_packet (%lu). Please rectify.", + global_system_variables.net_buffer_length, + global_system_variables.max_allowed_packet); + } + + if (log_error_file_ptr != disabled_my_option) + opt_error_log= 1; + else + log_error_file_ptr= const_cast<char*>(""); + + opt_init_connect.length=strlen(opt_init_connect.str); + opt_init_slave.length=strlen(opt_init_slave.str); + + if (global_system_variables.low_priority_updates) + thr_upgraded_concurrent_insert_lock= TL_WRITE_LOW_PRIORITY; + + if (ft_boolean_check_syntax_string((uchar*) ft_boolean_syntax, + strlen(ft_boolean_syntax), + system_charset_info)) + { + sql_print_error("Invalid ft-boolean-syntax string: %s", + ft_boolean_syntax); + return 1; + } + + if (opt_disable_networking) + mysqld_port= mysqld_extra_port= 0; + + if (opt_skip_show_db) + opt_specialflag|= SPECIAL_SKIP_SHOW_DB; + + if (myisam_flush) + flush_time= 0; + +#ifdef HAVE_REPLICATION + if (init_slave_skip_errors(opt_slave_skip_errors)) + return 1; + if (init_slave_transaction_retry_errors(opt_slave_transaction_retry_errors)) + return 1; +#endif + + if (global_system_variables.max_join_size == HA_POS_ERROR) + global_system_variables.option_bits|= OPTION_BIG_SELECTS; + else + global_system_variables.option_bits&= ~OPTION_BIG_SELECTS; + + if (opt_support_flashback) + { + /* Force binary logging */ + if (!opt_bin_logname) + opt_bin_logname= (char*) ""; // Use default name + opt_bin_log= opt_bin_log_used= 1; + + /* Force format to row */ + binlog_format_used= 1; + global_system_variables.binlog_format= BINLOG_FORMAT_ROW; + } + + if (!opt_bootstrap && WSREP_PROVIDER_EXISTS && WSREP_ON && + global_system_variables.binlog_format != BINLOG_FORMAT_ROW) + { + + WSREP_ERROR ("Only binlog_format = 'ROW' is currently supported. " + "Configured value: '%s'. Please adjust your configuration.", + binlog_format_names[global_system_variables.binlog_format]); + return 1; + } + + // Synchronize @@global.autocommit on --autocommit + const ulonglong turn_bit_on= opt_autocommit ? + OPTION_AUTOCOMMIT : OPTION_NOT_AUTOCOMMIT; + global_system_variables.option_bits= + (global_system_variables.option_bits & + ~(OPTION_NOT_AUTOCOMMIT | OPTION_AUTOCOMMIT)) | turn_bit_on; + + global_system_variables.sql_mode= + expand_sql_mode(global_system_variables.sql_mode); +#if !defined(HAVE_REALPATH) || defined(HAVE_BROKEN_REALPATH) + my_use_symdir=0; + my_disable_symlinks=1; + have_symlink=SHOW_OPTION_NO; +#else + if (!my_use_symdir) + { + my_disable_symlinks=1; + have_symlink=SHOW_OPTION_DISABLED; + } +#endif + if (opt_debugging) + { + /* Allow break with SIGINT, no core or stack trace */ + test_flags|= TEST_SIGINT; + test_flags&= ~TEST_CORE_ON_SIGNAL; + } + /* Set global MyISAM variables from delay_key_write_options */ + fix_delay_key_write(0, 0, OPT_GLOBAL); + +#ifndef EMBEDDED_LIBRARY + if (mysqld_chroot) + set_root(mysqld_chroot); +#else + SYSVAR_AUTOSIZE(thread_handling, SCHEDULER_NO_THREADS); + max_allowed_packet= global_system_variables.max_allowed_packet; + net_buffer_length= global_system_variables.net_buffer_length; +#endif + if (fix_paths()) + return 1; + + /* + Set some global variables from the global_system_variables + In most cases the global variables will not be used + */ + my_disable_locking= myisam_single_user= MY_TEST(opt_external_locking == 0); + my_default_record_cache_size=global_system_variables.read_buff_size; + + /* + Log mysys errors when we don't have a thd or thd->log_all_errors is set + (recovery) to the log. This is mainly useful for debugging strange system + errors. + */ + if (global_system_variables.log_warnings >= 10) + my_global_flags= MY_WME | ME_NOTE; + /* Log all errors not handled by thd->handle_error() to my_message_sql() */ + if (global_system_variables.log_warnings >= 11) + my_global_flags|= ME_ERROR_LOG; + if (my_assert_on_error) + debug_assert_if_crashed_table= 1; + + global_system_variables.long_query_time= (ulonglong) + (global_system_variables.long_query_time_double * 1e6 + 0.1); + global_system_variables.max_statement_time= (ulonglong) + (global_system_variables.max_statement_time_double * 1e6 + 0.1); + + if (opt_short_log_format) + opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT; + + if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE, + &global_date_format) || + init_global_datetime_format(MYSQL_TIMESTAMP_TIME, + &global_time_format) || + init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME, + &global_datetime_format)) + return 1; + +#ifdef EMBEDDED_LIBRARY + one_thread_scheduler(thread_scheduler, &connection_count); + /* + It looks like extra_connection_count should be passed here but + its been using connection_count for the last 10+ years and + no-one was requested a change so lets not suprise anyone. + */ + one_thread_scheduler(extra_thread_scheduler, &connection_count); +#else + + if (thread_handling <= SCHEDULER_ONE_THREAD_PER_CONNECTION) + one_thread_per_connection_scheduler(thread_scheduler, &max_connections, + &connection_count); + else if (thread_handling == SCHEDULER_NO_THREADS) + one_thread_scheduler(thread_scheduler, &connection_count); + else + pool_of_threads_scheduler(thread_scheduler, &max_connections, + &connection_count); + + one_thread_per_connection_scheduler(extra_thread_scheduler, + &extra_max_connections, + &extra_connection_count); +#endif + + opt_readonly= read_only; + + /* Remember if max_user_connections was 0 at startup */ + max_user_connections_checking= global_system_variables.max_user_connections != 0; + +#ifdef HAVE_REPLICATION + { + sys_var *max_relay_log_size_var, *max_binlog_size_var; + /* If max_relay_log_size is 0, then set it to max_binlog_size */ + if (!global_system_variables.max_relay_log_size) + SYSVAR_AUTOSIZE(global_system_variables.max_relay_log_size, + max_binlog_size); + + /* + Fix so that DEFAULT and limit checking works with max_relay_log_size + (Yes, this is a hack, but it's required as the definition of + max_relay_log_size allows it to be set to 0). + */ + max_relay_log_size_var= intern_find_sys_var(STRING_WITH_LEN("max_relay_log_size")); + max_binlog_size_var= intern_find_sys_var(STRING_WITH_LEN("max_binlog_size")); + if (max_binlog_size_var && max_relay_log_size_var) + { + max_relay_log_size_var->option.min_value= + max_binlog_size_var->option.min_value; + max_relay_log_size_var->option.def_value= + max_binlog_size_var->option.def_value; + } + slave_max_statement_time= + double2ulonglong(slave_max_statement_time_double * 1e6); + } +#endif + + /* Ensure that some variables are not set higher than needed */ + if (thread_cache_size > max_connections) + SYSVAR_AUTOSIZE(thread_cache_size, max_connections); + + return 0; +} + + +/* + Create version name for running mysqld version + We automaticly add suffixes -debug, -embedded and -log to the version + name to make the version more descriptive. + (MYSQL_SERVER_SUFFIX is set by the compilation environment) +*/ + +void set_server_version(char *buf, size_t size) +{ + bool is_log= opt_log || global_system_variables.sql_log_slow || opt_bin_log; + bool is_debug= IF_DBUG(!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug"), 0); + const char *is_valgrind= +#ifdef HAVE_VALGRIND + !strstr(MYSQL_SERVER_SUFFIX_STR, "-valgrind") ? "-valgrind" : +#endif + ""; + strxnmov(buf, size - 1, + MYSQL_SERVER_VERSION, + MYSQL_SERVER_SUFFIX_STR, + IF_EMBEDDED("-embedded", ""), + is_valgrind, + is_debug ? "-debug" : "", + is_log ? "-log" : "", + NullS); +} + + +static char *get_relative_path(const char *path) +{ + if (test_if_hard_path(path) && + is_prefix(path,DEFAULT_MYSQL_HOME) && + strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR)) + { + path+=(uint) strlen(DEFAULT_MYSQL_HOME); + while (*path == FN_LIBCHAR || *path == FN_LIBCHAR2) + path++; + } + return (char*) path; +} + + +/** + Fix filename and replace extension where 'dir' is relative to + mysql_real_data_home. + @return + 1 if len(path) > FN_REFLEN +*/ + +bool +fn_format_relative_to_data_home(char * to, const char *name, + const char *dir, const char *extension) +{ + char tmp_path[FN_REFLEN]; + if (!test_if_hard_path(dir)) + { + strxnmov(tmp_path,sizeof(tmp_path)-1, mysql_real_data_home, + dir, NullS); + dir=tmp_path; + } + return !fn_format(to, name, dir, extension, + MY_APPEND_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH); +} + + +/** + Test a file path to determine if the path is compatible with the secure file + path restriction. + + @param path null terminated character string + + @return + @retval TRUE The path is secure + @retval FALSE The path isn't secure +*/ + +bool is_secure_file_path(char *path) +{ + char buff1[FN_REFLEN], buff2[FN_REFLEN]; + size_t opt_secure_file_priv_len; + /* + All paths are secure if opt_secure_file_path is 0 + */ + if (!opt_secure_file_priv) + return TRUE; + + opt_secure_file_priv_len= strlen(opt_secure_file_priv); + + if (strlen(path) >= FN_REFLEN) + return FALSE; + + if (my_realpath(buff1, path, 0)) + { + /* + The supplied file path might have been a file and not a directory. + */ + size_t length= dirname_length(path); // Guaranteed to be < FN_REFLEN + memcpy(buff2, path, length); + buff2[length]= '\0'; + if (length == 0 || my_realpath(buff1, buff2, 0)) + return FALSE; + } + convert_dirname(buff2, buff1, NullS); + if (!lower_case_file_system) + { + if (strncmp(opt_secure_file_priv, buff2, opt_secure_file_priv_len)) + return FALSE; + } + else + { + if (files_charset_info->strnncoll(buff2, strlen(buff2), + opt_secure_file_priv, + opt_secure_file_priv_len, + TRUE)) + return FALSE; + } + return TRUE; +} + + +static int fix_paths(void) +{ + char buff[FN_REFLEN],*pos; + DBUG_ENTER("fix_paths"); + + convert_dirname(mysql_home,mysql_home,NullS); + /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */ + my_realpath(mysql_home,mysql_home,MYF(0)); + /* Ensure that mysql_home ends in FN_LIBCHAR */ + pos=strend(mysql_home); + if (pos[-1] != FN_LIBCHAR) + { + pos[0]= FN_LIBCHAR; + pos[1]= 0; + } + convert_dirname(lc_messages_dir, lc_messages_dir, NullS); + convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS); + (void) my_load_path(mysql_home,mysql_home,""); // Resolve current dir + (void) my_load_path(mysql_real_data_home,mysql_real_data_home,mysql_home); + (void) my_load_path(pidfile_name, pidfile_name_ptr, mysql_real_data_home); + + convert_dirname(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr : + get_relative_path(PLUGINDIR), NullS); + (void) my_load_path(opt_plugin_dir, opt_plugin_dir, mysql_home); + opt_plugin_dir_ptr= opt_plugin_dir; + pidfile_name_ptr= pidfile_name; + + my_realpath(mysql_unpacked_real_data_home, mysql_real_data_home, MYF(0)); + mysql_unpacked_real_data_home_len= + strlen(mysql_unpacked_real_data_home); + if (mysql_unpacked_real_data_home[mysql_unpacked_real_data_home_len-1] == FN_LIBCHAR) + --mysql_unpacked_real_data_home_len; + + char *sharedir=get_relative_path(SHAREDIR); + if (test_if_hard_path(sharedir)) + strmake_buf(buff, sharedir); /* purecov: tested */ + else + strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS); + convert_dirname(buff,buff,NullS); + (void) my_load_path(lc_messages_dir, lc_messages_dir, buff); + + /* If --character-sets-dir isn't given, use shared library dir */ + if (charsets_dir) + { + strmake_buf(mysql_charsets_dir, charsets_dir); + charsets_dir= mysql_charsets_dir; + } + else + { + strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff, + CHARSET_DIR, NullS); + SYSVAR_AUTOSIZE(charsets_dir, mysql_charsets_dir); + } + (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff); + convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS); + + if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir)) + DBUG_RETURN(1); + if (!opt_mysql_tmpdir) + opt_mysql_tmpdir= mysql_tmpdir; +#ifdef HAVE_REPLICATION + if (!slave_load_tmpdir) + SYSVAR_AUTOSIZE(slave_load_tmpdir, mysql_tmpdir); +#endif /* HAVE_REPLICATION */ + /* + Convert the secure-file-priv option to system format, allowing + a quick strcmp to check if read or write is in an allowed dir + */ + if (opt_secure_file_priv) + { + if (*opt_secure_file_priv == 0) + { + my_free(opt_secure_file_priv); + opt_secure_file_priv= 0; + } + else + { + if (strlen(opt_secure_file_priv) >= FN_REFLEN) + opt_secure_file_priv[FN_REFLEN-1]= '\0'; + if (my_realpath(buff, opt_secure_file_priv, 0)) + { + sql_print_warning("Failed to normalize the argument for --secure-file-priv."); + DBUG_RETURN(1); + } + char *secure_file_real_path= (char *)my_malloc(PSI_INSTRUMENT_ME, FN_REFLEN, MYF(MY_FAE)); + convert_dirname(secure_file_real_path, buff, NullS); + my_free(opt_secure_file_priv); + opt_secure_file_priv= secure_file_real_path; + } + } + DBUG_RETURN(0); +} + +/** + Check if file system used for databases is case insensitive. + + @param dir_name Directory to test + + @retval -1 Don't know (Test failed) + @retval 0 File system is case sensitive + @retval 1 File system is case insensitive +*/ + +static int test_if_case_insensitive(const char *dir_name) +{ + int result= 0; + File file; + char buff[FN_REFLEN], buff2[FN_REFLEN]; + MY_STAT stat_info; + DBUG_ENTER("test_if_case_insensitive"); + + fn_format(buff, opt_log_basename, dir_name, ".lower-test", + MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR); + fn_format(buff2, opt_log_basename, dir_name, ".LOWER-TEST", + MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR); + mysql_file_delete(key_file_casetest, buff2, MYF(0)); + if ((file= mysql_file_create(key_file_casetest, + buff, 0666, O_RDWR, MYF(0))) < 0) + { + if (!opt_abort) + sql_print_warning("Can't create test file '%s' (Errcode: %M)", buff, my_errno); + DBUG_RETURN(-1); + } + mysql_file_close(file, MYF(0)); + if (mysql_file_stat(key_file_casetest, buff2, &stat_info, MYF(0))) + result= 1; // Can access file + mysql_file_delete(key_file_casetest, buff, MYF(MY_WME)); + DBUG_PRINT("exit", ("result: %d", result)); + DBUG_RETURN(result); +} + + +#ifndef EMBEDDED_LIBRARY + +/** + Create file to store pid number. +*/ +static void create_pid_file() +{ + File file; + if ((file= mysql_file_create(key_file_pid, pidfile_name, 0664, + O_WRONLY | O_TRUNC, MYF(MY_WME))) >= 0) + { + char buff[MAX_BIGINT_WIDTH + 1], *end; + end= int10_to_str((long) getpid(), buff, 10); + *end++= '\n'; + if (!mysql_file_write(file, (uchar*) buff, (uint) (end-buff), + MYF(MY_WME | MY_NABP))) + { + mysql_file_close(file, MYF(0)); + pid_file_created= true; + return; + } + mysql_file_close(file, MYF(0)); + } + sql_perror("Can't start server: can't create PID file"); + exit(1); +} +#endif /* EMBEDDED_LIBRARY */ + + +/** + Remove the process' pid file. + + @param flags file operation flags +*/ + +static void delete_pid_file(myf flags) +{ +#ifndef EMBEDDED_LIBRARY + if (pid_file_created) + { + mysql_file_delete(key_file_pid, pidfile_name, flags); + pid_file_created= false; + } +#endif /* EMBEDDED_LIBRARY */ + return; +} + + +/** Clear most status variables. */ +void refresh_status(THD *thd) +{ + mysql_mutex_lock(&LOCK_status); + +#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE + /* Reset aggregated status counters. */ + reset_pfs_status_stats(); +#endif + + /* Add thread's status variabes to global status */ + add_to_status(&global_status_var, &thd->status_var); + + /* Reset thread's status variables */ + thd->set_status_var_init(); + thd->status_var.global_memory_used= 0; + bzero((uchar*) &thd->org_status_var, sizeof(thd->org_status_var)); + thd->start_bytes_received= 0; + + /* Reset some global variables */ + reset_status_vars(); +#ifdef WITH_WSREP + if (WSREP_ON) + { + Wsrep_server_state::instance().provider().reset_status(); + } +#endif /* WITH_WSREP */ + + /* Reset the counters of all key caches (default and named). */ + process_key_caches(reset_key_cache_counters, 0); + flush_status_time= time((time_t*) 0); + mysql_mutex_unlock(&LOCK_status); + + /* + Set max_used_connections to the number of currently open + connections. This is not perfect, but status data is not exact anyway. + */ + max_used_connections= connection_count + extra_connection_count; +} + +#ifdef HAVE_PSI_INTERFACE +static PSI_file_info all_server_files[]= +{ +#ifdef HAVE_MMAP + { &key_file_map, "map", 0}, +#endif /* HAVE_MMAP */ + { &key_file_binlog, "binlog", 0}, + { &key_file_binlog_cache, "binlog_cache", 0}, + { &key_file_binlog_index, "binlog_index", 0}, + { &key_file_binlog_index_cache, "binlog_index_cache", 0}, + { &key_file_relaylog, "relaylog", 0}, + { &key_file_relaylog_cache, "relaylog_cache", 0}, + { &key_file_relaylog_index, "relaylog_index", 0}, + { &key_file_relaylog_index_cache, "relaylog_index_cache", 0}, + { &key_file_io_cache, "io_cache", 0}, + { &key_file_casetest, "casetest", 0}, + { &key_file_dbopt, "dbopt", 0}, + { &key_file_des_key_file, "des_key_file", 0}, + { &key_file_ERRMSG, "ERRMSG", 0}, + { &key_select_to_file, "select_to_file", 0}, + { &key_file_fileparser, "file_parser", 0}, + { &key_file_frm, "FRM", 0}, + { &key_file_global_ddl_log, "global_ddl_log", 0}, + { &key_file_load, "load", 0}, + { &key_file_loadfile, "LOAD_FILE", 0}, + { &key_file_log_ddl, "log_ddl", 0}, + { &key_file_log_event_data, "log_event_data", 0}, + { &key_file_log_event_info, "log_event_info", 0}, + { &key_file_master_info, "master_info", 0}, + { &key_file_misc, "misc", 0}, + { &key_file_partition_ddl_log, "partition_ddl_log", 0}, + { &key_file_pid, "pid", 0}, + { &key_file_query_log, "query_log", 0}, + { &key_file_relay_log_info, "relay_log_info", 0}, + { &key_file_send_file, "send_file", 0}, + { &key_file_slow_log, "slow_log", 0}, + { &key_file_tclog, "tclog", 0}, + { &key_file_trg, "trigger_name", 0}, + { &key_file_trn, "trigger", 0}, + { &key_file_init, "init", 0}, + { &key_file_binlog_state, "binlog_state", 0} +}; +#endif /* HAVE_PSI_INTERFACE */ + +PSI_stage_info stage_after_apply_event= { 0, "After apply log event", 0}; +PSI_stage_info stage_after_create= { 0, "After create", 0}; +PSI_stage_info stage_after_opening_tables= { 0, "After opening tables", 0}; +PSI_stage_info stage_after_table_lock= { 0, "After table lock", 0}; +PSI_stage_info stage_allocating_local_table= { 0, "Allocating local table", 0}; +PSI_stage_info stage_alter_inplace_prepare= { 0, "preparing for alter table", 0}; +PSI_stage_info stage_alter_inplace= { 0, "altering table", 0}; +PSI_stage_info stage_alter_inplace_commit= { 0, "Committing alter table to storage engine", 0}; +PSI_stage_info stage_apply_event= { 0, "Apply log event", 0}; +PSI_stage_info stage_changing_master= { 0, "Changing master", 0}; +PSI_stage_info stage_checking_master_version= { 0, "Checking master version", 0}; +PSI_stage_info stage_checking_permissions= { 0, "checking permissions", 0}; +PSI_stage_info stage_checking_privileges_on_cached_query= { 0, "checking privileges on cached query", 0}; +PSI_stage_info stage_checking_query_cache_for_query= { 0, "Checking query cache for query", 0}; +PSI_stage_info stage_cleaning_up= { 0, "Reset for next command", 0}; +PSI_stage_info stage_closing_tables= { 0, "closing tables", 0}; +PSI_stage_info stage_connecting_to_master= { 0, "Connecting to master", 0}; +PSI_stage_info stage_converting_heap_to_myisam= { 0, "Converting HEAP to " TMP_ENGINE_NAME, 0}; +PSI_stage_info stage_copying_to_group_table= { 0, "Copying to group table", 0}; +PSI_stage_info stage_copying_to_tmp_table= { 0, "Copying to tmp table", 0}; +PSI_stage_info stage_copy_to_tmp_table= { 0, "copy to tmp table", PSI_FLAG_STAGE_PROGRESS}; +PSI_stage_info stage_creating_delayed_handler= { 0, "Creating delayed handler", 0}; +PSI_stage_info stage_creating_sort_index= { 0, "Creating sort index", 0}; +PSI_stage_info stage_creating_table= { 0, "creating table", 0}; +PSI_stage_info stage_creating_tmp_table= { 0, "Creating tmp table", 0}; +PSI_stage_info stage_deleting_from_main_table= { 0, "Deleting from main table", 0}; +PSI_stage_info stage_deleting_from_reference_tables= { 0, "Deleting from reference tables", 0}; +PSI_stage_info stage_discard_or_import_tablespace= { 0, "Discard_or_import_tablespace", 0}; +PSI_stage_info stage_enabling_keys= { 0, "Enabling keys", 0}; +PSI_stage_info stage_end= { 0, "End of update loop", 0}; +PSI_stage_info stage_executing= { 0, "Executing", 0}; +PSI_stage_info stage_execution_of_init_command= { 0, "Execution of init_command", 0}; +PSI_stage_info stage_explaining= { 0, "Explaining", 0}; +PSI_stage_info stage_finding_key_cache= { 0, "Finding key cache", 0}; +PSI_stage_info stage_finished_reading_one_binlog_switching_to_next_binlog= { 0, "Finished reading one binlog; switching to next binlog", 0}; +PSI_stage_info stage_flushing_relay_log_and_master_info_repository= { 0, "Flushing relay log and master info repository.", 0}; +PSI_stage_info stage_flushing_relay_log_info_file= { 0, "Flushing relay-log info file.", 0}; +PSI_stage_info stage_freeing_items= { 0, "Freeing items", 0}; +PSI_stage_info stage_fulltext_initialization= { 0, "Fulltext initialization", 0}; +PSI_stage_info stage_got_handler_lock= { 0, "Got handler lock", 0}; +PSI_stage_info stage_got_old_table= { 0, "Got old table", 0}; +PSI_stage_info stage_init= { 0, "init", 0}; +PSI_stage_info stage_init_update= { 0, "init for update", 0}; +PSI_stage_info stage_insert= { 0, "Insert", 0}; +PSI_stage_info stage_invalidating_query_cache_entries_table= { 0, "Invalidating query cache entries (table)", 0}; +PSI_stage_info stage_invalidating_query_cache_entries_table_list= { 0, "Invalidating query cache entries (table list)", 0}; +PSI_stage_info stage_killing_slave= { 0, "Killing slave", 0}; +PSI_stage_info stage_logging_slow_query= { 0, "Logging slow query", 0}; +PSI_stage_info stage_making_temp_file_append_before_load_data= { 0, "Making temporary file (append) before replaying LOAD DATA INFILE", 0}; +PSI_stage_info stage_making_temp_file_create_before_load_data= { 0, "Making temporary file (create) before replaying LOAD DATA INFILE", 0}; +PSI_stage_info stage_manage_keys= { 0, "Manage keys", 0}; +PSI_stage_info stage_master_has_sent_all_binlog_to_slave= { 0, "Master has sent all binlog to slave; waiting for more updates", 0}; +PSI_stage_info stage_opening_tables= { 0, "Opening tables", 0}; +PSI_stage_info stage_optimizing= { 0, "Optimizing", 0}; +PSI_stage_info stage_preparing= { 0, "Preparing", 0}; +PSI_stage_info stage_purging_old_relay_logs= { 0, "Purging old relay logs", 0}; +PSI_stage_info stage_query_end= { 0, "Query end", 0}; +PSI_stage_info stage_starting_cleanup= { 0, "Starting cleanup", 0}; +PSI_stage_info stage_rollback= { 0, "Rollback", 0}; +PSI_stage_info stage_rollback_implicit= { 0, "Rollback_implicit", 0}; +PSI_stage_info stage_commit= { 0, "Commit", 0}; +PSI_stage_info stage_commit_implicit= { 0, "Commit implicit", 0}; +PSI_stage_info stage_queueing_master_event_to_the_relay_log= { 0, "Queueing master event to the relay log", 0}; +PSI_stage_info stage_reading_event_from_the_relay_log= { 0, "Reading event from the relay log", 0}; +PSI_stage_info stage_recreating_table= { 0, "Recreating table", 0}; +PSI_stage_info stage_registering_slave_on_master= { 0, "Registering slave on master", 0}; +PSI_stage_info stage_removing_duplicates= { 0, "Removing duplicates", 0}; +PSI_stage_info stage_removing_tmp_table= { 0, "Removing tmp table", 0}; +PSI_stage_info stage_rename= { 0, "Rename", 0}; +PSI_stage_info stage_rename_result_table= { 0, "Rename result table", 0}; +PSI_stage_info stage_requesting_binlog_dump= { 0, "Requesting binlog dump", 0}; +PSI_stage_info stage_reschedule= { 0, "Reschedule", 0}; +PSI_stage_info stage_searching_rows_for_update= { 0, "Searching rows for update", 0}; +PSI_stage_info stage_sending_binlog_event_to_slave= { 0, "Sending binlog event to slave", 0}; +PSI_stage_info stage_sending_cached_result_to_client= { 0, "Sending cached result to client", 0}; +PSI_stage_info stage_sending_data= { 0, "Sending data", 0}; +PSI_stage_info stage_setup= { 0, "setup", 0}; +PSI_stage_info stage_show_explain= { 0, "Show explain", 0}; +PSI_stage_info stage_slave_has_read_all_relay_log= { 0, "Slave has read all relay log; waiting for more updates", 0}; +PSI_stage_info stage_sorting= { 0, "Sorting", 0}; +PSI_stage_info stage_sorting_for_group= { 0, "Sorting for group", 0}; +PSI_stage_info stage_sorting_for_order= { 0, "Sorting for order", 0}; +PSI_stage_info stage_sorting_result= { 0, "Sorting result", 0}; +PSI_stage_info stage_statistics= { 0, "Statistics", 0}; +PSI_stage_info stage_sql_thd_waiting_until_delay= { 0, "Waiting until MASTER_DELAY seconds after master executed event", 0 }; +PSI_stage_info stage_storing_result_in_query_cache= { 0, "Storing result in query cache", 0}; +PSI_stage_info stage_storing_row_into_queue= { 0, "Storing row into queue", 0}; +PSI_stage_info stage_system_lock= { 0, "System lock", 0}; +PSI_stage_info stage_unlocking_tables= { 0, "Unlocking tables", 0}; +PSI_stage_info stage_table_lock= { 0, "table lock", 0}; +PSI_stage_info stage_filling_schema_table= { 0, "Filling schema table", 0}; +PSI_stage_info stage_update= { 0, "Update", 0}; +PSI_stage_info stage_updating= { 0, "Updating", 0}; +PSI_stage_info stage_updating_main_table= { 0, "Updating main table", 0}; +PSI_stage_info stage_updating_reference_tables= { 0, "Updating reference tables", 0}; +PSI_stage_info stage_upgrading_lock= { 0, "Upgrading lock", 0}; +PSI_stage_info stage_user_lock= { 0, "User lock", 0}; +PSI_stage_info stage_user_sleep= { 0, "User sleep", 0}; +PSI_stage_info stage_verifying_table= { 0, "Verifying table", 0}; +PSI_stage_info stage_waiting_for_delay_list= { 0, "Waiting for delay_list", 0}; +PSI_stage_info stage_waiting_for_gtid_to_be_written_to_binary_log= { 0, "Waiting for GTID to be written to binary log", 0}; +PSI_stage_info stage_waiting_for_handler_insert= { 0, "Waiting for handler insert", 0}; +PSI_stage_info stage_waiting_for_handler_lock= { 0, "Waiting for handler lock", 0}; +PSI_stage_info stage_waiting_for_handler_open= { 0, "Waiting for handler open", 0}; +PSI_stage_info stage_waiting_for_insert= { 0, "Waiting for INSERT", 0}; +PSI_stage_info stage_waiting_for_master_to_send_event= { 0, "Waiting for master to send event", 0}; +PSI_stage_info stage_waiting_for_master_update= { 0, "Waiting for master update", 0}; +PSI_stage_info stage_waiting_for_relay_log_space= { 0, "Waiting for the slave SQL thread to free enough relay log space", 0}; +PSI_stage_info stage_waiting_for_semi_sync_ack_from_slave= +{ 0, "Waiting for semi-sync ACK from slave", 0}; +PSI_stage_info stage_waiting_for_semi_sync_slave={ 0, "Waiting for semi-sync slave connection", 0}; +PSI_stage_info stage_reading_semi_sync_ack={ 0, "Reading semi-sync ACK from slave", 0}; +PSI_stage_info stage_waiting_for_slave_mutex_on_exit= { 0, "Waiting for slave mutex on exit", 0}; +PSI_stage_info stage_waiting_for_slave_thread_to_start= { 0, "Waiting for slave thread to start", 0}; +PSI_stage_info stage_waiting_for_table_flush= { 0, "Waiting for table flush", 0}; +PSI_stage_info stage_waiting_for_query_cache_lock= { 0, "Waiting for query cache lock", 0}; +PSI_stage_info stage_waiting_for_the_next_event_in_relay_log= { 0, "Waiting for the next event in relay log", 0}; +PSI_stage_info stage_waiting_for_the_slave_thread_to_advance_position= { 0, "Waiting for the slave SQL thread to advance position", 0}; +PSI_stage_info stage_waiting_to_finalize_termination= { 0, "Waiting to finalize termination", 0}; +PSI_stage_info stage_binlog_waiting_background_tasks= { 0, "Waiting for background binlog tasks", 0}; +PSI_stage_info stage_binlog_write= { 0, "Writing to binlog", 0}; +PSI_stage_info stage_binlog_processing_checkpoint_notify= { 0, "Processing binlog checkpoint notification", 0}; +PSI_stage_info stage_binlog_stopping_background_thread= { 0, "Stopping binlog background thread", 0}; +PSI_stage_info stage_waiting_for_work_from_sql_thread= { 0, "Waiting for work from SQL thread", 0}; +PSI_stage_info stage_waiting_for_prior_transaction_to_commit= { 0, "Waiting for prior transaction to commit", 0}; +PSI_stage_info stage_waiting_for_prior_transaction_to_start_commit= { 0, "Waiting for prior transaction to start commit", 0}; +PSI_stage_info stage_waiting_for_room_in_worker_thread= { 0, "Waiting for room in worker thread event queue", 0}; +PSI_stage_info stage_waiting_for_workers_idle= { 0, "Waiting for worker threads to be idle", 0}; +PSI_stage_info stage_waiting_for_ftwrl= { 0, "Waiting due to global read lock", 0}; +PSI_stage_info stage_waiting_for_ftwrl_threads_to_pause= { 0, "Waiting for worker threads to pause for global read lock", 0}; +PSI_stage_info stage_waiting_for_rpl_thread_pool= { 0, "Waiting while replication worker thread pool is busy", 0}; +PSI_stage_info stage_master_gtid_wait_primary= { 0, "Waiting in MASTER_GTID_WAIT() (primary waiter)", 0}; +PSI_stage_info stage_master_gtid_wait= { 0, "Waiting in MASTER_GTID_WAIT()", 0}; +PSI_stage_info stage_gtid_wait_other_connection= { 0, "Waiting for other master connection to process the same GTID", 0}; +PSI_stage_info stage_slave_background_process_request= { 0, "Processing requests", 0}; +PSI_stage_info stage_slave_background_wait_request= { 0, "Waiting for requests", 0}; +PSI_stage_info stage_waiting_for_deadlock_kill= { 0, "Waiting for parallel replication deadlock handling to complete", 0}; +PSI_stage_info stage_starting= { 0, "starting", 0}; +PSI_stage_info stage_waiting_for_flush= { 0, "Waiting for non trans tables to be flushed", 0}; +PSI_stage_info stage_waiting_for_ddl= { 0, "Waiting for DDLs", 0}; + +#ifdef WITH_WSREP +// Aditional Galera thread states +PSI_stage_info stage_waiting_isolation= { 0, "Waiting to execute in isolation", 0}; +PSI_stage_info stage_waiting_certification= {0, "Waiting for certification", 0}; +PSI_stage_info stage_waiting_ddl= {0, "Waiting for TOI DDL", 0}; +PSI_stage_info stage_waiting_flow= {0, "Waiting for flow control", 0}; +#endif /* WITH_WSREP */ + +PSI_memory_key key_memory_DATE_TIME_FORMAT; +PSI_memory_key key_memory_DDL_LOG_MEMORY_ENTRY; +PSI_memory_key key_memory_Event_queue_element_for_exec_names; +PSI_memory_key key_memory_Event_scheduler_scheduler_param; +PSI_memory_key key_memory_Filesort_info_merge; +PSI_memory_key key_memory_Filesort_info_record_pointers; +PSI_memory_key key_memory_Gis_read_stream_err_msg; +PSI_memory_key key_memory_JOIN_CACHE; +PSI_memory_key key_memory_MPVIO_EXT_auth_info; +PSI_memory_key key_memory_MYSQL_BIN_LOG_basename; +PSI_memory_key key_memory_MYSQL_BIN_LOG_index; +PSI_memory_key key_memory_MYSQL_LOCK; +PSI_memory_key key_memory_MYSQL_LOG_name; +PSI_memory_key key_memory_MYSQL_RELAY_LOG_basename; +PSI_memory_key key_memory_MYSQL_RELAY_LOG_index; +PSI_memory_key key_memory_NAMED_ILINK_name; +PSI_memory_key key_memory_PROFILE; +PSI_memory_key key_memory_QUICK_RANGE_SELECT_mrr_buf_desc; +PSI_memory_key key_memory_Query_cache; +PSI_memory_key key_memory_Relay_log_info_group_relay_log_name; +PSI_memory_key key_memory_Row_data_memory_memory; +PSI_memory_key key_memory_Rpl_info_file_buffer; +PSI_memory_key key_memory_SLAVE_INFO; +PSI_memory_key key_memory_ST_SCHEMA_TABLE; +PSI_memory_key key_memory_Sort_param_tmp_buffer; +PSI_memory_key key_memory_Sys_var_charptr_value; +PSI_memory_key key_memory_TABLE; +PSI_memory_key key_memory_TABLE_RULE_ENT; +PSI_memory_key key_memory_TC_LOG_MMAP_pages; +PSI_memory_key key_memory_THD_db; +PSI_memory_key key_memory_THD_handler_tables_hash; +PSI_memory_key key_memory_THD_variables; +PSI_memory_key key_memory_Table_trigger_dispatcher; +PSI_memory_key key_memory_Unique_merge_buffer; +PSI_memory_key key_memory_Unique_sort_buffer; +PSI_memory_key key_memory_User_level_lock; +PSI_memory_key key_memory_XID; +PSI_memory_key key_memory_acl_cache; +PSI_memory_key key_memory_acl_mem; +PSI_memory_key key_memory_acl_memex; +PSI_memory_key key_memory_binlog_cache_mngr; +PSI_memory_key key_memory_binlog_pos; +PSI_memory_key key_memory_binlog_recover_exec; +PSI_memory_key key_memory_binlog_statement_buffer; +PSI_memory_key key_memory_binlog_ver_1_event; +PSI_memory_key key_memory_bison_stack; +PSI_memory_key key_memory_blob_mem_storage; +PSI_memory_key key_memory_dboptions_hash; +PSI_memory_key key_memory_dbnames_cache; +PSI_memory_key key_memory_errmsgs; +PSI_memory_key key_memory_frm_string; +PSI_memory_key key_memory_gdl; +PSI_memory_key key_memory_global_system_variables; +PSI_memory_key key_memory_handler_errmsgs; +PSI_memory_key key_memory_handlerton; +PSI_memory_key key_memory_hash_index_key_buffer; +PSI_memory_key key_memory_host_cache_hostname; +PSI_memory_key key_memory_ignored_db; +PSI_memory_key key_memory_locked_table_list; +PSI_memory_key key_memory_locked_thread_list; +PSI_memory_key key_memory_my_str_malloc; +PSI_memory_key key_memory_native_functions; +PSI_memory_key key_memory_prepared_statement_main_mem_root; +PSI_memory_key key_memory_prepared_statement_map; +PSI_memory_key key_memory_queue_item; +PSI_memory_key key_memory_quick_range_select_root; +PSI_memory_key key_memory_rpl_filter; +PSI_memory_key key_memory_sp_cache; +PSI_memory_key key_memory_sp_head_call_root; +PSI_memory_key key_memory_sp_head_execute_root; +PSI_memory_key key_memory_sp_head_main_root; +PSI_memory_key key_memory_table_mapping_root; +PSI_memory_key key_memory_table_share; +PSI_memory_key key_memory_table_triggers_list; +PSI_memory_key key_memory_thd_main_mem_root; +PSI_memory_key key_memory_thd_transactions; +PSI_memory_key key_memory_user_conn; +PSI_memory_key key_memory_user_var_entry; +PSI_memory_key key_memory_user_var_entry_value; +PSI_memory_key key_memory_String_value; +PSI_memory_key key_memory_WSREP; + +#ifdef HAVE_PSI_INTERFACE + +PSI_stage_info *all_server_stages[]= +{ + & stage_after_apply_event, + & stage_after_create, + & stage_after_opening_tables, + & stage_after_table_lock, + & stage_allocating_local_table, + & stage_alter_inplace, + & stage_alter_inplace_commit, + & stage_alter_inplace_prepare, + & stage_apply_event, + & stage_binlog_write, + & stage_binlog_processing_checkpoint_notify, + & stage_binlog_stopping_background_thread, + & stage_binlog_waiting_background_tasks, + & stage_changing_master, + & stage_checking_master_version, + & stage_checking_permissions, + & stage_checking_privileges_on_cached_query, + & stage_checking_query_cache_for_query, + & stage_cleaning_up, + & stage_closing_tables, + & stage_commit, + & stage_commit_implicit, + & stage_connecting_to_master, + & stage_converting_heap_to_myisam, + & stage_copy_to_tmp_table, + & stage_copying_to_group_table, + & stage_copying_to_tmp_table, + & stage_creating_delayed_handler, + & stage_creating_sort_index, + & stage_creating_table, + & stage_creating_tmp_table, + & stage_deleting_from_main_table, + & stage_deleting_from_reference_tables, + & stage_discard_or_import_tablespace, + & stage_enabling_keys, + & stage_end, + & stage_executing, + & stage_execution_of_init_command, + & stage_explaining, + & stage_finding_key_cache, + & stage_finished_reading_one_binlog_switching_to_next_binlog, + & stage_flushing_relay_log_and_master_info_repository, + & stage_flushing_relay_log_info_file, + & stage_freeing_items, + & stage_fulltext_initialization, + & stage_got_handler_lock, + & stage_got_old_table, + & stage_init, + & stage_init_update, + & stage_insert, + & stage_invalidating_query_cache_entries_table, + & stage_invalidating_query_cache_entries_table_list, + & stage_killing_slave, + & stage_logging_slow_query, + & stage_making_temp_file_append_before_load_data, + & stage_making_temp_file_create_before_load_data, + & stage_manage_keys, + & stage_master_has_sent_all_binlog_to_slave, + & stage_opening_tables, + & stage_optimizing, + & stage_preparing, + & stage_purging_old_relay_logs, + & stage_starting_cleanup, + & stage_query_end, + & stage_queueing_master_event_to_the_relay_log, + & stage_reading_event_from_the_relay_log, + & stage_recreating_table, + & stage_registering_slave_on_master, + & stage_removing_duplicates, + & stage_removing_tmp_table, + & stage_rename, + & stage_rename_result_table, + & stage_requesting_binlog_dump, + & stage_reschedule, + & stage_rollback, + & stage_rollback_implicit, + & stage_searching_rows_for_update, + & stage_sending_binlog_event_to_slave, + & stage_sending_cached_result_to_client, + & stage_sending_data, + & stage_setup, + & stage_show_explain, + & stage_slave_has_read_all_relay_log, + & stage_sorting, + & stage_sorting_for_group, + & stage_sorting_for_order, + & stage_sorting_result, + & stage_sql_thd_waiting_until_delay, + & stage_statistics, + & stage_storing_result_in_query_cache, + & stage_storing_row_into_queue, + & stage_system_lock, + & stage_unlocking_tables, + & stage_table_lock, + & stage_filling_schema_table, + & stage_update, + & stage_updating, + & stage_updating_main_table, + & stage_updating_reference_tables, + & stage_upgrading_lock, + & stage_user_lock, + & stage_user_sleep, + & stage_verifying_table, + & stage_waiting_for_delay_list, + & stage_waiting_for_gtid_to_be_written_to_binary_log, + & stage_waiting_for_handler_insert, + & stage_waiting_for_handler_lock, + & stage_waiting_for_handler_open, + & stage_waiting_for_insert, + & stage_waiting_for_master_to_send_event, + & stage_waiting_for_master_update, + & stage_waiting_for_prior_transaction_to_commit, + & stage_waiting_for_prior_transaction_to_start_commit, + & stage_waiting_for_query_cache_lock, + & stage_waiting_for_relay_log_space, + & stage_waiting_for_room_in_worker_thread, + & stage_waiting_for_slave_mutex_on_exit, + & stage_waiting_for_slave_thread_to_start, + & stage_waiting_for_table_flush, + & stage_waiting_for_the_next_event_in_relay_log, + & stage_waiting_for_the_slave_thread_to_advance_position, + & stage_waiting_for_work_from_sql_thread, + & stage_waiting_to_finalize_termination, + & stage_master_gtid_wait_primary, + & stage_master_gtid_wait, + & stage_gtid_wait_other_connection, + & stage_slave_background_process_request, + & stage_slave_background_wait_request, + & stage_waiting_for_semi_sync_ack_from_slave, + & stage_waiting_for_semi_sync_slave, + & stage_reading_semi_sync_ack, + & stage_waiting_for_deadlock_kill, + & stage_starting +#ifdef WITH_WSREP + , + & stage_waiting_isolation, + & stage_waiting_certification, + & stage_waiting_ddl, + & stage_waiting_flow +#endif /* WITH_WSREP */ +}; + +PSI_socket_key key_socket_tcpip, key_socket_unix, key_socket_client_connection; + +static PSI_socket_info all_server_sockets[]= +{ + { &key_socket_tcpip, "server_tcpip_socket", PSI_FLAG_GLOBAL}, + { &key_socket_unix, "server_unix_socket", PSI_FLAG_GLOBAL}, + { &key_socket_client_connection, "client_connection", 0} +}; + +static PSI_memory_info all_server_memory[]= +{ + { &key_memory_locked_table_list, "Locked_tables_list::m_locked_tables_root", 0}, + { &key_memory_locked_thread_list, "display_table_locks", PSI_FLAG_THREAD}, + { &key_memory_thd_transactions, "THD::transactions::mem_root", PSI_FLAG_THREAD}, +// { &key_memory_delegate, "Delegate::memroot", 0}, + { &key_memory_acl_mem, "sql_acl_mem", PSI_FLAG_GLOBAL}, + { &key_memory_acl_memex, "sql_acl_memex", PSI_FLAG_GLOBAL}, + { &key_memory_acl_cache, "acl_cache", PSI_FLAG_GLOBAL}, + { &key_memory_thd_main_mem_root, "thd::main_mem_root", PSI_FLAG_THREAD}, +// { &key_memory_help, "help", 0}, +// { &key_memory_new_frm_mem, "new_frm_mem", 0}, + { &key_memory_table_share, "TABLE_SHARE::mem_root", PSI_FLAG_GLOBAL}, /* table definition cache */ + { &key_memory_gdl, "gdl", 0}, + { &key_memory_table_triggers_list, "Table_triggers_list", 0}, +// { &key_memory_servers, "servers", 0}, + { &key_memory_prepared_statement_map, "Prepared_statement_map", PSI_FLAG_THREAD}, + { &key_memory_prepared_statement_main_mem_root, "Prepared_statement::main_mem_root", PSI_FLAG_THREAD}, +// { &key_memory_protocol_rset_root, "Protocol_local::m_rset_root", PSI_FLAG_THREAD}, +// { &key_memory_warning_info_warn_root, "Warning_info::m_warn_root", PSI_FLAG_THREAD}, + { &key_memory_sp_cache, "THD::sp_cache", 0}, + { &key_memory_sp_head_main_root, "sp_head::main_mem_root", 0}, + { &key_memory_sp_head_execute_root, "sp_head::execute_mem_root", PSI_FLAG_THREAD}, + { &key_memory_sp_head_call_root, "sp_head::call_mem_root", PSI_FLAG_THREAD}, + { &key_memory_table_mapping_root, "table_mapping::m_mem_root", 0}, + { &key_memory_quick_range_select_root, "QUICK_RANGE_SELECT::alloc", PSI_FLAG_THREAD}, +// { &key_memory_quick_index_merge_root, "QUICK_INDEX_MERGE_SELECT::alloc", PSI_FLAG_THREAD}, +// { &key_memory_quick_ror_intersect_select_root, "QUICK_ROR_INTERSECT_SELECT::alloc", PSI_FLAG_THREAD}, +// { &key_memory_quick_ror_union_select_root, "QUICK_ROR_UNION_SELECT::alloc", PSI_FLAG_THREAD}, +// { &key_memory_quick_group_min_max_select_root, "QUICK_GROUP_MIN_MAX_SELECT::alloc", PSI_FLAG_THREAD}, +// { &key_memory_test_quick_select_exec, "test_quick_select", PSI_FLAG_THREAD}, +// { &key_memory_prune_partitions_exec, "prune_partitions::exec", 0}, + { &key_memory_binlog_recover_exec, "MYSQL_BIN_LOG::recover", 0}, + { &key_memory_blob_mem_storage, "Blob_mem_storage::storage", 0}, + { &key_memory_NAMED_ILINK_name, "NAMED_ILINK::name", 0}, + { &key_memory_String_value, "String::value", 0}, + { &key_memory_Sys_var_charptr_value, "Sys_var_charptr::value", 0}, + { &key_memory_queue_item, "Queue::queue_item", 0}, + { &key_memory_THD_db, "THD::db", 0}, + { &key_memory_user_var_entry, "user_var_entry", 0}, +// { &key_memory_Slave_job_group_group_relay_log_name, "Slave_job_group::group_relay_log_name", 0}, + { &key_memory_Relay_log_info_group_relay_log_name, "Relay_log_info::group_relay_log_name", 0}, + { &key_memory_binlog_cache_mngr, "binlog_cache_mngr", 0}, + { &key_memory_Row_data_memory_memory, "Row_data_memory::memory", 0}, +// { &key_memory_Gtid_set_to_string, "Gtid_set::to_string", 0}, +// { &key_memory_Gtid_state_to_string, "Gtid_state::to_string", 0}, +// { &key_memory_Owned_gtids_to_string, "Owned_gtids::to_string", 0}, +// { &key_memory_log_event, "Log_event", 0}, +// { &key_memory_Incident_log_event_message, "Incident_log_event::message", 0}, +// { &key_memory_Rows_query_log_event_rows_query, "Rows_query_log_event::rows_query", 0}, + { &key_memory_Sort_param_tmp_buffer, "Sort_param::tmp_buffer", 0}, + { &key_memory_Filesort_info_merge, "Filesort_info::merge", 0}, + { &key_memory_Filesort_info_record_pointers, "Filesort_info::record_pointers", 0}, +// { &key_memory_Filesort_buffer_sort_keys, "Filesort_buffer::sort_keys", 0}, + { &key_memory_handler_errmsgs, "handler::errmsgs", 0}, + { &key_memory_handlerton, "handlerton", 0}, + { &key_memory_XID, "XID", 0}, + { &key_memory_host_cache_hostname, "host_cache::hostname", 0}, + { &key_memory_user_var_entry_value, "user_var_entry::value", 0}, + { &key_memory_User_level_lock, "User_level_lock", 0}, + { &key_memory_MYSQL_LOG_name, "MYSQL_LOG::name", 0}, + { &key_memory_TC_LOG_MMAP_pages, "TC_LOG_MMAP::pages", 0}, +// { &key_memory_my_bitmap_map, "my_bitmap_map", 0}, + { &key_memory_QUICK_RANGE_SELECT_mrr_buf_desc, "QUICK_RANGE_SELECT::mrr_buf_desc", 0}, + { &key_memory_Event_queue_element_for_exec_names, "Event_queue_element_for_exec::names", 0}, + { &key_memory_my_str_malloc, "my_str_malloc", 0}, + { &key_memory_MYSQL_BIN_LOG_basename, "MYSQL_BIN_LOG::basename", 0}, + { &key_memory_MYSQL_BIN_LOG_index, "MYSQL_BIN_LOG::index", 0}, + { &key_memory_MYSQL_RELAY_LOG_basename, "MYSQL_RELAY_LOG::basename", 0}, + { &key_memory_MYSQL_RELAY_LOG_index, "MYSQL_RELAY_LOG::index", 0}, + { &key_memory_rpl_filter, "rpl_filter memory", 0}, + { &key_memory_errmsgs, "errmsgs", 0}, + { &key_memory_Gis_read_stream_err_msg, "Gis_read_stream::err_msg", 0}, +// { &key_memory_Geometry_objects_data, "Geometry::ptr_and_wkb_data", 0}, + { &key_memory_MYSQL_LOCK, "MYSQL_LOCK", 0}, +// { &key_memory_NET_buff, "NET::buff", 0}, +// { &key_memory_NET_compress_packet, "NET::compress_packet", 0}, + { &key_memory_Event_scheduler_scheduler_param, "Event_scheduler::scheduler_param", 0}, +// { &key_memory_Gtid_set_Interval_chunk, "Gtid_set::Interval_chunk", 0}, +// { &key_memory_Owned_gtids_sidno_to_hash, "Owned_gtids::sidno_to_hash", 0}, +// { &key_memory_Sid_map_Node, "Sid_map::Node", 0}, +// { &key_memory_Gtid_state_group_commit_sidno, "Gtid_state::group_commit_sidno_locks", 0}, +// { &key_memory_Mutex_cond_array_Mutex_cond, "Mutex_cond_array::Mutex_cond", 0}, + { &key_memory_TABLE_RULE_ENT, "TABLE_RULE_ENT", 0}, +// { &key_memory_Rpl_info_table, "Rpl_info_table", 0}, + { &key_memory_Rpl_info_file_buffer, "Rpl_info_file::buffer", 0}, +// { &key_memory_db_worker_hash_entry, "db_worker_hash_entry", 0}, +// { &key_memory_rpl_slave_check_temp_dir, "rpl_slave::check_temp_dir", 0}, +// { &key_memory_rpl_slave_command_buffer, "rpl_slave::command_buffer", 0}, + { &key_memory_binlog_ver_1_event, "binlog_ver_1_event", 0}, + { &key_memory_SLAVE_INFO, "SLAVE_INFO", 0}, + { &key_memory_binlog_pos, "binlog_pos", 0}, +// { &key_memory_HASH_ROW_ENTRY, "HASH_ROW_ENTRY", 0}, + { &key_memory_binlog_statement_buffer, "binlog_statement_buffer", 0}, +// { &key_memory_partition_syntax_buffer, "partition_syntax_buffer", 0}, +// { &key_memory_READ_INFO, "READ_INFO", 0}, + { &key_memory_JOIN_CACHE, "JOIN_CACHE", 0}, +// { &key_memory_TABLE_sort_io_cache, "TABLE::sort_io_cache", 0}, +// { &key_memory_frm, "frm", 0}, + { &key_memory_Unique_sort_buffer, "Unique::sort_buffer", 0}, + { &key_memory_Unique_merge_buffer, "Unique::merge_buffer", 0}, + { &key_memory_TABLE, "TABLE", PSI_FLAG_GLOBAL}, /* Table cache */ +// { &key_memory_frm_extra_segment_buff, "frm::extra_segment_buff", 0}, +// { &key_memory_frm_form_pos, "frm::form_pos", 0}, + { &key_memory_frm_string, "frm::string", 0}, +// { &key_memory_LOG_name, "LOG_name", 0}, + { &key_memory_DATE_TIME_FORMAT, "DATE_TIME_FORMAT", 0}, + { &key_memory_DDL_LOG_MEMORY_ENTRY, "DDL_LOG_MEMORY_ENTRY", 0}, + { &key_memory_ST_SCHEMA_TABLE, "ST_SCHEMA_TABLE", 0}, + { &key_memory_ignored_db, "ignored_db", 0}, + { &key_memory_PROFILE, "PROFILE", 0}, + { &key_memory_global_system_variables, "global_system_variables", 0}, + { &key_memory_THD_variables, "THD::variables", 0}, +// { &key_memory_Security_context, "Security_context", 0}, +// { &key_memory_shared_memory_name, "Shared_memory_name", 0}, + { &key_memory_bison_stack, "bison_stack", 0}, + { &key_memory_THD_handler_tables_hash, "THD::handler_tables_hash", 0}, + { &key_memory_hash_index_key_buffer, "hash_index_key_buffer", 0}, + { &key_memory_dboptions_hash, "dboptions_hash", 0}, + { &key_memory_dbnames_cache, "dbnames_cache", 0}, + { &key_memory_user_conn, "user_conn", 0}, +// { &key_memory_LOG_POS_COORD, "LOG_POS_COORD", 0}, +// { &key_memory_XID_STATE, "XID_STATE", 0}, + { &key_memory_MPVIO_EXT_auth_info, "MPVIO_EXT::auth_info", 0}, +// { &key_memory_opt_bin_logname, "opt_bin_logname", 0}, + { &key_memory_Query_cache, "Query_cache", PSI_FLAG_GLOBAL}, +// { &key_memory_READ_RECORD_cache, "READ_RECORD_cache", 0}, +// { &key_memory_Quick_ranges, "Quick_ranges", 0}, +// { &key_memory_File_query_log_name, "File_query_log::name", 0}, + { &key_memory_Table_trigger_dispatcher, "Table_trigger_dispatcher::m_mem_root", 0}, +// { &key_memory_thd_timer, "thd_timer", 0}, +// { &key_memory_THD_Session_tracker, "THD::Session_tracker", 0}, +// { &key_memory_THD_Session_sysvar_resource_manager, "THD::Session_sysvar_resource_manager", 0}, +// { &key_memory_show_slave_status_io_gtid_set, "show_slave_status_io_gtid_set", 0}, +// { &key_memory_write_set_extraction, "write_set_extraction", 0}, +// { &key_memory_get_all_tables, "get_all_tables", 0}, +// { &key_memory_fill_schema_schemata, "fill_schema_schemata", 0}, + { &key_memory_native_functions, "native_functions", PSI_FLAG_GLOBAL}, + { &key_memory_WSREP, "wsrep", 0 } +}; + +/** + Initialise all the performance schema instrumentation points + used by the server. +*/ +void init_server_psi_keys(void) +{ + const char* category= "sql"; + int count; + + count= array_elements(all_server_mutexes); + mysql_mutex_register(category, all_server_mutexes, count); + + count= array_elements(all_server_rwlocks); + mysql_rwlock_register(category, all_server_rwlocks, count); + + count= array_elements(all_server_conds); + mysql_cond_register(category, all_server_conds, count); + + count= array_elements(all_server_threads); + mysql_thread_register(category, all_server_threads, count); + + count= array_elements(all_server_files); + mysql_file_register(category, all_server_files, count); + + count= array_elements(all_server_stages); + mysql_stage_register(category, all_server_stages, count); + + count= array_elements(all_server_sockets); + mysql_socket_register(category, all_server_sockets, count); + + count= array_elements(all_server_memory); + mysql_memory_register(category, all_server_memory, count); + +#ifdef HAVE_PSI_STATEMENT_INTERFACE + init_sql_statement_info(); + count= array_elements(sql_statement_info); + mysql_statement_register(category, sql_statement_info, count); + + init_sp_psi_keys(); + + category= "com"; + init_com_statement_info(); + + /* + Register [0 .. COM_QUERY - 1] as "statement/com/..." + */ + count= (int) COM_QUERY; + mysql_statement_register(category, com_statement_info, count); + + /* + Register [COM_QUERY + 1 .. COM_END] as "statement/com/..." + */ + count= (int) COM_END - (int) COM_QUERY; + mysql_statement_register(category, & com_statement_info[(int) COM_QUERY + 1], count); + + category= "abstract"; + /* + Register [COM_QUERY] as "statement/abstract/com_query" + */ + mysql_statement_register(category, & com_statement_info[(int) COM_QUERY], 1); + + /* + When a new packet is received, + it is instrumented as "statement/abstract/new_packet". + Based on the packet type found, it later mutates to the + proper narrow type, for example + "statement/abstract/query" or "statement/com/ping". + In cases of "statement/abstract/query", SQL queries are given to + the parser, which mutates the statement type to an even more + narrow classification, for example "statement/sql/select". + */ + stmt_info_new_packet.m_key= 0; + stmt_info_new_packet.m_name= "new_packet"; + stmt_info_new_packet.m_flags= PSI_FLAG_MUTABLE; + mysql_statement_register(category, &stmt_info_new_packet, 1); + + /* + Statements processed from the relay log are initially instrumented as + "statement/abstract/relay_log". The parser will mutate the statement type to + a more specific classification, for example "statement/sql/insert". + */ + stmt_info_rpl.m_key= 0; + stmt_info_rpl.m_name= "relay_log"; + stmt_info_rpl.m_flags= PSI_FLAG_MUTABLE; + mysql_statement_register(category, &stmt_info_rpl, 1); +#endif +} + +#endif /* HAVE_PSI_INTERFACE */ + + +/* + Connection ID allocation. + + We need to maintain thread_ids in the 32bit range, + because this is how it is passed to the client in the protocol. + + The idea is to maintain a id range, initially set to + (0,UINT32_MAX). Whenever new id is needed, we increment the + lower limit and return its new value. + + On "overflow", if id can not be generated anymore(i.e lower == upper -1), + we recalculate the range boundaries. + To do that, we first collect thread ids that are in use, by traversing + THD list, and find largest region within (0,UINT32_MAX), that is still free. + +*/ + +static my_thread_id thread_id_max= UINT_MAX32; + +#include <vector> +#include <algorithm> + +/* + Find largest unused thread_id range. + + i.e for every number N within the returned range, + there is no existing connection with thread_id equal to N. + + The range is exclusive, lower bound is always >=0 and + upper bound <=MAX_UINT32. + + @param[out] low - lower bound for the range + @param[out] high - upper bound for the range +*/ + +static my_bool recalculate_callback(THD *thd, std::vector<my_thread_id> *ids) +{ + ids->push_back(thd->thread_id); + return 0; +} + + +static void recalculate_thread_id_range(my_thread_id *low, my_thread_id *high) +{ + std::vector<my_thread_id> ids; + + // Add sentinels + ids.push_back(0); + ids.push_back(UINT_MAX32); + server_threads.iterate(recalculate_callback, &ids); + + std::sort(ids.begin(), ids.end()); + my_thread_id max_gap= 0; + for (size_t i= 0; i < ids.size() - 1; i++) + { + my_thread_id gap= ids[i+1] - ids[i]; + if (gap > max_gap) + { + *low= ids[i]; + *high= ids[i+1]; + max_gap= gap; + } + } + + if (max_gap < 2) + { + /* Can't find free id. This is not really possible, + we'd need 2^32 connections for this to happen.*/ + sql_print_error("Cannot find free connection id."); + abort(); + } +} + + +my_thread_id next_thread_id(void) +{ + my_thread_id retval; + DBUG_EXECUTE_IF("thread_id_overflow", global_thread_id= thread_id_max-2;); + + mysql_mutex_lock(&LOCK_thread_id); + + if (unlikely(global_thread_id == thread_id_max - 1)) + { + recalculate_thread_id_range(&global_thread_id, &thread_id_max); + } + + retval= ++global_thread_id; + + mysql_mutex_unlock(&LOCK_thread_id); + return retval; +} |